From 53d19e1c1ffda8e7724d9d6658e3bb9acde758a7 Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Sun, 20 Jan 2008 17:03:32 +0000 Subject: linux-rp: Tidy up .bb file and clean up unused patches git-svn-id: https://svn.o-hand.com/repos/poky/trunk@3557 311d38ba-8fff-0310-9ca6-ca027cbcb966 --- .../connectplus-prevent-oops-HACK.patch | 17 + .../hx2750_base-r31.patch | 1094 ----- .../mmcsd_no_scr_check-r2.patch | 29 - .../linux-rp-2.6.23+2.6.24-rc8/pda-power.patch | 3373 --------------- .../pxa27x_overlay-r8.patch | 2427 ----------- .../squashfs3.0-2.6.15.patch | 4189 ------------------- .../squashfs3.2-2.6.20-r0.patch | 4376 -------------------- .../linux-rp-2.6.23+2.6.24-rc8/squashfs3.3.patch | 4234 +++++++++++++++++++ .../uvesafb-0.1-rc3-2.6.22.patch | 2590 ------------ .../linux-rp-2.6.23+2.6.24-rc8/vt_ioctl_race.patch | 46 - .../w100fb-unused-var.patch | 17 - .../wm97xx-lcdnoise-r0.patch | 208 - .../linux-rp-2.6.23/mmcsd_no_scr_check-r2.patch | 29 - .../packages/linux/linux-rp-2.6.23/pda-power.patch | 3373 --------------- .../linux/linux-rp-2.6.23/versatile-armv6.patch | 19 + .../linux/linux-rp-2.6.23/vt_ioctl_race.patch | 46 - .../linux/linux-rp-2.6.23/w100fb-unused-var.patch | 17 - .../linux-rp-2.6.23/wm9712-reset-loop-r2.patch | 44 + .../wm9712-suspend-cold-res-r2.patch | 16 + .../linux-rp-2.6.23/wm97xx-lg13-r0-fix-r0.patch | 128 + .../linux/linux-rp-2.6.23/wm97xx-lg13-r0.patch | 2899 +++++++++++++ meta/packages/linux/linux-rp_2.6.23+2.6.24-rc8.bb | 84 +- meta/packages/linux/linux-rp_2.6.23.bb | 35 +- 23 files changed, 7424 insertions(+), 21866 deletions(-) create mode 100644 meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/connectplus-prevent-oops-HACK.patch delete mode 100644 meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/hx2750_base-r31.patch delete mode 100644 meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/mmcsd_no_scr_check-r2.patch delete mode 100644 meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/pda-power.patch delete mode 100644 meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/pxa27x_overlay-r8.patch delete mode 100644 meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/squashfs3.0-2.6.15.patch delete mode 100644 meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/squashfs3.2-2.6.20-r0.patch create mode 100644 meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/squashfs3.3.patch delete mode 100644 meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/uvesafb-0.1-rc3-2.6.22.patch delete mode 100644 meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/vt_ioctl_race.patch delete mode 100644 meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/w100fb-unused-var.patch delete mode 100644 meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/wm97xx-lcdnoise-r0.patch delete mode 100644 meta/packages/linux/linux-rp-2.6.23/mmcsd_no_scr_check-r2.patch delete mode 100644 meta/packages/linux/linux-rp-2.6.23/pda-power.patch create mode 100644 meta/packages/linux/linux-rp-2.6.23/versatile-armv6.patch delete mode 100644 meta/packages/linux/linux-rp-2.6.23/vt_ioctl_race.patch delete mode 100644 meta/packages/linux/linux-rp-2.6.23/w100fb-unused-var.patch create mode 100644 meta/packages/linux/linux-rp-2.6.23/wm9712-reset-loop-r2.patch create mode 100644 meta/packages/linux/linux-rp-2.6.23/wm9712-suspend-cold-res-r2.patch create mode 100644 meta/packages/linux/linux-rp-2.6.23/wm97xx-lg13-r0-fix-r0.patch create mode 100644 meta/packages/linux/linux-rp-2.6.23/wm97xx-lg13-r0.patch (limited to 'meta/packages') diff --git a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/connectplus-prevent-oops-HACK.patch b/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/connectplus-prevent-oops-HACK.patch new file mode 100644 index 000000000..b5439c62e --- /dev/null +++ b/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/connectplus-prevent-oops-HACK.patch @@ -0,0 +1,17 @@ +Index: linux-2.6.21/drivers/net/wireless/hostap/hostap_hw.c +=================================================================== +--- linux-2.6.21.orig/drivers/net/wireless/hostap/hostap_hw.c 2007-07-07 12:45:39.000000000 +0100 ++++ linux-2.6.21/drivers/net/wireless/hostap/hostap_hw.c 2007-07-07 12:47:30.000000000 +0100 +@@ -2666,6 +2666,12 @@ + iface = netdev_priv(dev); + local = iface->local; + ++ if(dev->base_addr == 0) ++ { ++ printk(KERN_DEBUG "%s: IRQ before base_addr set\n", dev->name); ++ return IRQ_HANDLED; ++ } ++ + prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INTERRUPT, 0, 0); + + if (local->func->card_present && !local->func->card_present(local)) { diff --git a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/hx2750_base-r31.patch b/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/hx2750_base-r31.patch deleted file mode 100644 index 5d58bcf55..000000000 --- a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/hx2750_base-r31.patch +++ /dev/null @@ -1,1094 +0,0 @@ ---- - arch/arm/mach-pxa/Kconfig | 10 - arch/arm/mach-pxa/Makefile | 1 - arch/arm/mach-pxa/hx2750.c | 450 ++++++++++++++++++++++++++++++++++++++ - arch/arm/mach-pxa/hx2750_test.c | 433 ++++++++++++++++++++++++++++++++++++ - arch/arm/mach-pxa/pm.c | 5 - arch/arm/mach-pxa/pxa25x.c | 4 - arch/arm/mach-pxa/pxa27x.c | 4 - include/asm-arm/arch-pxa/hx2750.h | 90 +++++++ - 8 files changed, 995 insertions(+), 2 deletions(-) - ---- /dev/null -+++ linux-2.6.24-rc1/include/asm-arm/arch-pxa/hx2750.h -@@ -0,0 +1,90 @@ -+/* -+ * Hardware specific definitions for iPAQ hx2750 -+ * -+ * Copyright 2005 Openedhand Ltd. -+ * -+ * Author: Richard Purdie -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ * -+ */ -+#ifndef __ASM_ARCH_HX2750_H -+#define __ASM_ARCH_HX2750_H 1 -+ -+/* -+ * HX2750 (Non Standard) GPIO Definitions -+ */ -+ -+#define HX2750_GPIO_KEYPWR (0) /* Power button */ -+#define HX2750_GPIO_BATTCOVER1 (9) /* Battery Cover Switch */ -+#define HX2750_GPIO_CF_IRQ (11) /* CF IRQ? */ -+#define HX2750_GPIO_USBCONNECT (12) /* USB Connected? */ -+#define HX2750_GPIO_CF_DETECT (13) /* CF Card Detect? */ -+#define HX2750_GPIO_EXTPWR (14) /* External Power Detect */ -+#define HX2750_GPIO_BATLVL (15) /* Battery Level Detect */ -+#define HX2750_GPIO_CF_PWR (17) /* CF Power? */ -+#define HX2750_GPIO_SR_STROBE (18) /* Shift Register Strobe */ -+#define HX2750_GPIO_CHARGE (22) /* Charging Enable (active low) */ -+#define HX2750_GPIO_TSC2101_SS (24) /* TSC2101 SS# */ -+#define HX2750_GPIO_BTPWR (27) /* Bluetooth Power? */ -+#define HX2750_GPIO_BATTCOVER2 (33) /* Battery Cover Switch */ -+#define HX2750_GPIO_SD_DETECT (38) /* MMC Card Detect */ -+#define HX2750_GPIO_SR_CLK1 (52) /* Shift Register Clock */ -+#define HX2750_GPIO_SR_CLK2 (53) -+#define HX2750_GPIO_CF_WIFIIRQ (54) /* CF Wifi IRQ? */ -+#define HX2750_GPIO_GPIO_DIN (88) /* Shift Register Data */ -+#define HX2750_GPIO_KEYLEFT (90) /* Left button */ -+#define HX2750_GPIO_KEYRIGHT (91) /* Right button */ -+#define HX2750_GPIO_KEYCAL (93) /* Calander button */ -+#define HX2750_GPIO_KEYTASK (94) /* Task button */ -+#define HX2750_GPIO_KEYSIDE (95) /* Side button */ -+#define HX2750_GPIO_KEYENTER (96) /* Enter Button*/ -+#define HX2750_GPIO_KEYCON (97) /* Contacts button */ -+#define HX2750_GPIO_KEYMAIL (98) /* Mail button */ -+#define HX2750_GPIO_BIOPWR (99) /* BIO Reader Power? */ -+#define HX2750_GPIO_KEYUP (100) /* Up button */ -+#define HX2750_GPIO_KEYDOWN (101) /* Down button*/ -+#define HX2750_GPIO_SD_READONLY (103) /* MMC/SD Write Protection */ -+#define HX2750_GPIO_LEDMAIL (106) /* Green Mail LED */ -+#define HX2750_GPIO_HP_JACK (108) /* Head Phone Jack Present */ -+#define HX2750_GPIO_PENDOWN (117) /* Touch Screen Pendown */ -+ -+ -+//#define HX2750_GPIO_ () /* */ -+ -+/* -+ * HX2750 Interrupts -+ */ -+#define HX2750_IRQ_GPIO_EXTPWR IRQ_GPIO(HX2750_GPIO_EXTPWR) -+#define HX2750_IRQ_GPIO_SD_DETECT IRQ_GPIO(HX2750_GPIO_SD_DETECT) -+#define HX2750_IRQ_GPIO_PENDOWN IRQ_GPIO(HX2750_GPIO_PENDOWN) -+#define HX2750_IRQ_GPIO_CF_DETECT IRQ_GPIO(HX2750_GPIO_CF_DETECT) -+#define HX2750_IRQ_GPIO_CF_IRQ IRQ_GPIO(HX2750_GPIO_CF_IRQ) -+#define HX2750_IRQ_GPIO_CF_WIFIIRQ IRQ_GPIO(HX2750_GPIO_CF_WIFIIRQ) -+ -+/* -+ * HX2750 Extra GPIO Definitions -+ */ -+ -+#define HX2750_EGPIO_WIFI_PWR (1 << 11) /* Wifi power */ -+#define HX2750_EGPIO_LCD_PWR (1 << 10) /* LCD Power */ -+#define HX2750_EGPIO_BL_PWR (1 << 9) /* Backlight LED Power */ -+#define HX2750_EGPIO_8 (1 << 8) /* */ -+#define HX2750_EGPIO_7 (1 << 7) /* */ -+#define HX2750_EGPIO_SD_PWR (1 << 6) /* SD Power */ -+#define HX2750_EGPIO_TSC_PWR (1 << 5) /* TS Power */ -+#define HX2750_EGPIO_CF0_RESET (1 << 4) /* CF0 Reset */ -+#define HX2750_EGPIO_CF1_RESET (1 << 3) /* CF1 Reset */ -+#define HX2750_EGPIO_2 (1 << 2) /* Power/Red LED Related?*/ -+#define HX2750_EGPIO_1 (1 << 1) /* Power/Red LED Related?*/ -+#define HX2750_EGPIO_PWRLED (1 << 0) /* Power/Red LED Related?*/ -+ -+ -+void hx2750_set_egpio(unsigned int gpio); -+void hx2750_clear_egpio(unsigned int gpio); -+ -+ -+#endif /* __ASM_ARCH_HX2750_H */ -+ ---- linux-2.6.24-rc1.orig/arch/arm/mach-pxa/Makefile -+++ linux-2.6.24-rc1/arch/arm/mach-pxa/Makefile -@@ -22,6 +22,7 @@ - obj-$(CONFIG_MACH_POODLE) += poodle.o corgi_ssp.o - obj-$(CONFIG_MACH_TOSA) += tosa.o - obj-$(CONFIG_MACH_EM_X270) += em-x270.o -+obj-$(CONFIG_MACH_HX2750) += hx2750.o hx2750_test.o - - ifeq ($(CONFIG_MACH_ZYLONITE),y) - obj-y += zylonite.o ---- /dev/null -+++ linux-2.6.24-rc1/arch/arm/mach-pxa/hx2750_test.c -@@ -0,0 +1,433 @@ -+/* -+ * HP iPAQ hx2750 Test Development Code -+ * -+ * Copyright 2005 Openedhand Ltd. -+ * -+ * Author: Richard Purdie -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ * -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+#include -+#include -+ -+#include -+#include -+ -+ -+static int prodval; -+ -+/* -+ * Sysfs functions -+ */ -+static ssize_t test1_show(struct device *dev, char *buf) -+{ -+ unsigned long rp; -+ -+ asm ("mrc p15, 0, %0, cr1, cr0;\n" :"=r"(rp) ); -+ printk("%lx\n",rp); -+ -+ asm ("mrc p15, 0, %0, cr1, cr1;\n" :"=r"(rp) ); -+ printk("%lx\n",rp); -+ -+ asm ("mrc p15, 0, %0, cr2, cr0;\n" :"=r"(rp) ); -+ printk("%lx\n",rp); -+ -+ asm ("mrc p15, 0, %0, cr3, cr0;\n" :"=r"(rp) ); -+ printk("%lx\n",rp); -+ -+ asm ("mrc p15, 0, %0, cr13, cr0;\n" :"=r"(rp) ); -+ printk("%lx\n",rp); -+ -+ return sprintf(buf, "%d\n",prodval); -+} -+extern void tsc2101_print_miscdata(struct device *dev); -+extern struct platform_device tsc2101_device; -+ -+static ssize_t test1_store(struct device *dev, const char *buf, size_t count) -+{ -+ prodval = simple_strtoul(buf, NULL, 10); -+ -+ tsc2101_print_miscdata(&tsc2101_device.dev); -+ -+ return count; -+} -+ -+static DEVICE_ATTR(test1, 0644, test1_show, test1_store); -+ -+static ssize_t test2_show(struct device *dev, char *buf) -+{ -+ printk(KERN_ERR "SSCR0_P2: %08x\n", SSCR0_P2); -+ printk(KERN_ERR "SSCR1_P2: %08x\n", SSCR1_P2); -+ printk(KERN_ERR "SSSR_P2: %08x\n", SSSR_P2); -+ printk(KERN_ERR "SSITR_P2: %08x\n", SSITR_P2); -+ printk(KERN_ERR "SSDR_P2: %08x\n", SSDR_P2); -+ printk(KERN_ERR "SSTO_P2: %08x\n", SSTO_P2); -+ printk(KERN_ERR "SSPSP_P2: %08x\n", SSPSP_P2); -+ -+ hx2750_ssp_init2(); -+ -+ printk(KERN_ERR "SSCR0_P2: %08x\n", SSCR0_P2); -+ printk(KERN_ERR "SSCR1_P2: %08x\n", SSCR1_P2); -+ printk(KERN_ERR "SSSR_P2: %08x\n", SSSR_P2); -+ printk(KERN_ERR "SSITR_P2: %08x\n", SSITR_P2); -+ printk(KERN_ERR "SSDR_P2: %08x\n", SSDR_P2); -+ printk(KERN_ERR "SSTO_P2: %08x\n", SSTO_P2); -+ printk(KERN_ERR "SSPSP_P2: %08x\n", SSPSP_P2); -+ -+ return sprintf(buf, "%d\n",0); -+} -+ -+static DEVICE_ATTR(test2, 0444, test2_show, NULL); -+ -+extern unsigned int hx2750_egpio_current; -+ -+static ssize_t setegpio_show(struct device *dev, char *buf) -+{ -+ return sprintf(buf, "%x\n",hx2750_egpio_current); -+} -+ -+static ssize_t setegpio_store(struct device *dev, const char *buf, size_t count) -+{ -+ unsigned int val = simple_strtoul(buf, NULL, 10); -+ -+ hx2750_set_egpio(1 << val); -+ -+ return count; -+} -+ -+static DEVICE_ATTR(setegpio, 0644, setegpio_show, setegpio_store); -+ -+static ssize_t clregpio_show(struct device *dev, char *buf) -+{ -+ return sprintf(buf, "%x\n",hx2750_egpio_current); -+} -+ -+static ssize_t gpio_show(struct device *dev, char *buf) -+{ -+ int i; -+ -+ printk(KERN_ERR "GPIO# D S A INTER\n"); -+ -+ for (i=0;i<119;i++) { -+ printk(KERN_ERR " %3d: ",i); -+ if (GPDR(i) & GPIO_bit(i)) -+ printk("O "); -+ else -+ printk("I "); -+ printk("%d ",(GPLR(i) & GPIO_bit(i)) != 0); -+ printk("%d ",((GAFR(i) & (0x3 << (((i) & 0xf)*2)))) >> (((i) & 0xf)*2) ); -+ if (GEDR(i) & GPIO_bit(i)) -+ printk("ED "); -+ if (GRER(i) & GPIO_bit(i)) -+ printk("RE "); -+ if (GFER(i) & GPIO_bit(i)) -+ printk("FE "); -+ -+ printk("\n"); -+ } -+ return sprintf(buf, "EGPIO: %x\n",hx2750_egpio_current); -+} -+ -+static ssize_t clregpio_store(struct device *dev, const char *buf, size_t count) -+{ -+ unsigned int val = simple_strtoul(buf, NULL, 10); -+ -+ hx2750_clear_egpio(1 << val); -+ -+ return count; -+} -+ -+static DEVICE_ATTR(clregpio, 0644, clregpio_show, clregpio_store); -+ -+ -+static ssize_t gpioclr_store(struct device *dev, const char *buf, size_t count) -+{ -+ int prod; -+ prod = simple_strtoul(buf, NULL, 10); -+ -+ GPCR(prod) = GPIO_bit(prod); -+ -+ return count; -+} -+ -+static DEVICE_ATTR(gpioclr, 0644, gpio_show, gpioclr_store); -+ -+static ssize_t gpioset_store(struct device *dev, const char *buf, size_t count) -+{ -+ int prod; -+ prod = simple_strtoul(buf, NULL, 10); -+ -+ GPSR(prod) = GPIO_bit(prod); -+ -+ return count; -+} -+ -+static DEVICE_ATTR(gpioset, 0644, gpio_show, gpioset_store); -+ -+ -+static ssize_t ssp2read_store(struct device *dev, const char *buf, size_t count) -+{ -+ unsigned int val = simple_strtoul(buf, NULL, 16); -+ -+ printk("Read: %08x\n",hx2750_ssp2_read(val)); -+ -+ return count; -+} -+ -+static DEVICE_ATTR(ssp2read, 0200, NULL, ssp2read_store); -+ -+static ssize_t ssp2write_store(struct device *dev, const char *buf, size_t count) -+{ -+ unsigned int val = simple_strtoul(buf, NULL, 16); -+ -+ printk("Write: %08x\n",hx2750_ssp2_write(val)); -+ -+ return count; -+} -+ -+static DEVICE_ATTR(ssp2write, 0200, NULL, ssp2write_store); -+ -+ -+static ssize_t sspr_store(struct device *dev, const char *buf, size_t count) -+{ -+ unsigned long val,ret; -+ val = simple_strtoul(buf, NULL, 0); -+ -+ hx2750_tsc2101_send(1<<15,val,&ret,1); -+ -+ printk("Response: %x\n",ret); -+ -+ return count; -+} -+ -+static DEVICE_ATTR(sspr, 0200, NULL, sspr_store); -+ -+static ssize_t sspw_store(struct device *dev, const char *buf, size_t count) -+{ -+ int val,ret; -+ sscanf(buf, "%lx %lx", &val, &ret); -+ -+ hx2750_tsc2101_send(0,val,&ret,1); -+ -+ return count; -+} -+ -+static DEVICE_ATTR(sspw, 0200, NULL, sspw_store); -+ -+ -+extern struct pm_ops pxa_pm_ops; -+extern void pxa_cpu_resume(void); -+extern unsigned long pxa_pm_pspr_value; -+ -+static int (*pxa_pm_enter_orig)(suspend_state_t state); -+ -+//static struct { -+// u32 ffier, fflcr, ffmcr, ffspr, ffisr, ffdll, ffdlh; -+//} sys_ctx; -+ -+u32 resstruct[20]; -+ -+static int hx2750_pxa_pm_enter(suspend_state_t state) -+{ -+ int i; -+ u32 save[10]; -+ -+ PWER = 0xC0000003;// | PWER_RTC; -+ PFER = 0x00000003; -+ PRER = 0x00000003; -+ -+ PGSR0=0x00000018; -+ PGSR1=0x00000380; -+ PGSR2=0x00800000; -+ PGSR3=0x00500400; -+ -+ //PVCR=0x494; or 0x14; -+ //PVCR=0x14; -+ //PCMD0=0x41f; -+ //i=PISR; -+ //PICR=0x00000062; -+ -+ //PCFR=0x457; -+ //PCFR=0x70; // Does not resume from sleep -+ PCFR=0x077; // was 0x477 -+ PSLR=0xff100004; -+ -+ resstruct[0]=0x0000b4e6; -+ resstruct[1]=0x00000001; -+ resstruct[2]=virt_to_phys(pxa_cpu_resume); -+ resstruct[3]=0xffffffff; //value for r0 -+ -+ resstruct[14]=0x00000078; //mcr 15, 0, r0, cr1, cr0, {0} -+ resstruct[15]=0x00000000; //mcr 15, 0, r0, cr1, cr1, {0} 0xffffffff -+ resstruct[16]=0xa0000000; //mcr 15, 0, r0, cr2, cr0, {0} 0xa0748000 -+ resstruct[17]=0x00000001; //mcr 15, 0, r0, cr3, cr0, {0} 0x00000015 -+ resstruct[18]=0x00000000; //mcr 15, 0, r0, cr13, cr0, {0} 0x00000000 -+ -+ pxa_pm_pspr_value=virt_to_phys(&resstruct[0]); -+ -+ hx2750_send_egpio(3); -+ -+ pxa_gpio_mode(87 | GPIO_OUT | GPIO_DFLT_HIGH); -+ -+ //sys_ctx.ffier = FFIER; -+ //sys_ctx.fflcr = FFLCR; -+ //sys_ctx.ffmcr = FFMCR; -+ //sys_ctx.ffspr = FFSPR; -+ //sys_ctx.ffisr = FFISR; -+ //FFLCR |= 0x80; -+ //sys_ctx.ffdll = FFDLL; -+ //sys_ctx.ffdlh = FFDLH; -+ //FFLCR &= 0xef; -+ -+ pxa_pm_enter_orig(state); -+ -+ //FFMCR = sys_ctx.ffmcr; -+ //FFSPR = sys_ctx.ffspr; -+ //FFLCR = sys_ctx.fflcr; -+ //FFLCR |= 0x80; -+ //FFDLH = sys_ctx.ffdlh; -+ //FFDLL = sys_ctx.ffdll; -+ //FFLCR = sys_ctx.fflcr; -+ //FFISR = sys_ctx.ffisr; -+ //FFLCR = 0x07; -+ //FFIER = sys_ctx.ffier; -+ -+ return 0; -+} -+ -+static irqreturn_t hx2750_charge_int(int irq, void *dev_id, struct pt_regs *regs) -+{ -+ if ((GPLR(HX2750_GPIO_EXTPWR) & GPIO_bit(HX2750_GPIO_EXTPWR)) == 0) { -+ printk("Charging On\n"); -+ GPCR(HX2750_GPIO_CHARGE); -+ } else { -+ printk("Charging Off\n"); -+ GPSR(HX2750_GPIO_CHARGE); -+ } -+ -+ return IRQ_HANDLED; -+} -+ -+ -+ -+ -+static irqreturn_t hx2750_interrupt(int irq, void *dev_id, struct pt_regs *regs) -+{ -+ printk("Input %d changed.\n", irq-32); -+ -+ return IRQ_HANDLED; -+} -+ -+ -+static int __init hx2750_test_probe(struct device *dev) -+{ -+ pxa_gpio_mode(21 | GPIO_OUT | GPIO_DFLT_HIGH); -+ pxa_gpio_mode(HX2750_GPIO_CHARGE | GPIO_OUT | GPIO_DFLT_HIGH); -+ pxa_gpio_mode(83 | GPIO_OUT | GPIO_DFLT_HIGH); -+ pxa_gpio_mode(HX2750_GPIO_BIOPWR | GPIO_OUT | GPIO_DFLT_HIGH); -+ pxa_gpio_mode(116 | GPIO_OUT | GPIO_DFLT_HIGH); -+ pxa_gpio_mode(118 | GPIO_OUT | GPIO_DFLT_HIGH); -+ -+ -+ //pxa_gpio_mode(HX2750_GPIO_CF_PWR | GPIO_OUT | GPIO_DFLT_LOW); -+ pxa_gpio_mode(HX2750_GPIO_CF_PWR | GPIO_OUT | GPIO_DFLT_HIGH); -+ pxa_gpio_mode(HX2750_GPIO_BTPWR | GPIO_OUT | GPIO_DFLT_LOW); -+ pxa_gpio_mode(79 | GPIO_OUT | GPIO_DFLT_LOW); -+ pxa_gpio_mode(85 | GPIO_OUT | GPIO_DFLT_LOW); -+ pxa_gpio_mode(HX2750_GPIO_LEDMAIL | GPIO_OUT | GPIO_DFLT_LOW); -+ pxa_gpio_mode(107 | GPIO_OUT | GPIO_DFLT_LOW); -+ pxa_gpio_mode(114 | GPIO_OUT | GPIO_DFLT_LOW); -+ -+ pxa_gpio_mode(HX2750_GPIO_BATTCOVER1 | GPIO_IN); -+ pxa_gpio_mode(HX2750_GPIO_BATTCOVER2 | GPIO_IN); -+ pxa_gpio_mode(HX2750_GPIO_CF_IRQ | GPIO_IN); -+ pxa_gpio_mode(HX2750_GPIO_USBCONNECT | GPIO_IN); -+ pxa_gpio_mode(HX2750_GPIO_CF_DETECT | GPIO_IN); -+ pxa_gpio_mode(HX2750_GPIO_EXTPWR | GPIO_IN); -+ -+ pxa_gpio_mode(HX2750_GPIO_BATLVL | GPIO_IN); -+ //pxa_gpio_mode(HX2750_GPIO_CF_WIFIIRQ | GPIO_IN); -+ pxa_gpio_mode(80 | GPIO_IN); -+ pxa_gpio_mode(HX2750_GPIO_HP_JACK | GPIO_IN); -+ pxa_gpio_mode(115 | GPIO_IN); -+ pxa_gpio_mode(119 | GPIO_IN); -+ -+ request_irq(IRQ_GPIO(HX2750_GPIO_BATLVL), hx2750_interrupt, SA_INTERRUPT, "hx2750test", NULL); -+ //request_irq(IRQ_GPIO(HX2750_GPIO_CF_WIFIIRQ), hx2750_interrupt, SA_INTERRUPT, "hx2750test", NULL); -+ request_irq(IRQ_GPIO(80), hx2750_interrupt, SA_INTERRUPT, "hx2750test", NULL); -+ request_irq(IRQ_GPIO(115), hx2750_interrupt, SA_INTERRUPT, "hx2750test", NULL); -+ request_irq(IRQ_GPIO(119), hx2750_interrupt, SA_INTERRUPT, "hx2750test", NULL); -+ request_irq(IRQ_GPIO(HX2750_GPIO_SR_CLK2), hx2750_interrupt, SA_INTERRUPT, "hx2750test", NULL); -+ -+ //request_irq(IRQ_GPIO(10), hx2750_interrupt, SA_INTERRUPT, "hx2750test", NULL); -+ -+ set_irq_type(IRQ_GPIO(HX2750_GPIO_BATLVL),IRQT_BOTHEDGE); -+ //set_irq_type(IRQ_GPIO(HX2750_GPIO_CF_WIFIIRQ),IRQT_BOTHEDGE); -+ set_irq_type(IRQ_GPIO(80),IRQT_BOTHEDGE); -+ set_irq_type(IRQ_GPIO(115),IRQT_BOTHEDGE); -+ set_irq_type(IRQ_GPIO(119),IRQT_BOTHEDGE); -+ set_irq_type(IRQ_GPIO(HX2750_GPIO_SR_CLK2),IRQT_BOTHEDGE); -+ -+ //set_irq_type(IRQ_GPIO(10),IRQT_BOTHEDGE); -+ -+ printk("hx2750 Test Code Initialized.\n"); -+ device_create_file(dev, &dev_attr_test1); -+ device_create_file(dev, &dev_attr_test2); -+ device_create_file(dev, &dev_attr_setegpio); -+ device_create_file(dev, &dev_attr_clregpio); -+ device_create_file(dev, &dev_attr_gpioset); -+ device_create_file(dev, &dev_attr_gpioclr); -+ device_create_file(dev, &dev_attr_sspr); -+ device_create_file(dev, &dev_attr_sspw); -+ device_create_file(dev, &dev_attr_ssp2read); -+ device_create_file(dev, &dev_attr_ssp2write); -+ -+ request_irq(HX2750_IRQ_GPIO_EXTPWR, hx2750_charge_int, SA_INTERRUPT, "hx2750_extpwr", NULL); -+ set_irq_type(HX2750_IRQ_GPIO_EXTPWR, IRQT_BOTHEDGE); -+ -+ pxa_pm_enter_orig=pxa_pm_ops.enter; -+ pxa_pm_ops.enter=hx2750_pxa_pm_enter; -+ -+ return 0; -+} -+ -+static struct device_driver hx2750_test_driver = { -+ .name = "hx2750-test", -+ .bus = &platform_bus_type, -+ .probe = hx2750_test_probe, -+// .remove = hx2750_bl_remove, -+// .suspend = hx2750_bl_suspend, -+// .resume = hx2750_bl_resume, -+}; -+ -+ -+static int __init hx2750_test_init(void) -+{ -+ return driver_register(&hx2750_test_driver); -+} -+ -+ -+static void __exit hx2750_test_exit(void) -+{ -+ driver_unregister(&hx2750_test_driver); -+} -+ -+module_init(hx2750_test_init); -+module_exit(hx2750_test_exit); -+ -+MODULE_AUTHOR("Richard Purdie "); -+MODULE_DESCRIPTION("iPAQ hx2750 Backlight Driver"); -+MODULE_LICENSE("GPLv2"); ---- linux-2.6.24-rc1.orig/arch/arm/mach-pxa/Kconfig -+++ linux-2.6.24-rc1/arch/arm/mach-pxa/Kconfig -@@ -83,6 +83,15 @@ - bool "Sharp PXA270 models (SL-Cxx00)" - select PXA27x - -+config MACH_HX2750 -+ bool "HP iPAQ hx2750" -+ select PXA27x -+ select PXA_KEYS -+ select MFD_TSC2101 -+ select PXA_SSP -+ help -+ This enables support for the HP iPAQ HX2750 handheld. -+ - endchoice - - endif -@@ -181,3 +190,4 @@ - help - Enable support for PXA2xx SSP ports - endif -+ ---- /dev/null -+++ linux-2.6.24-rc1/arch/arm/mach-pxa/hx2750.c -@@ -0,0 +1,450 @@ -+/* -+ * Machine definitions for HP iPAQ hx2750 -+ * -+ * Copyright 2005 Openedhand Ltd. -+ * -+ * Author: Richard Purdie -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ * -+ */ -+ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+#include -+#include -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include "generic.h" -+ -+ -+/* -+ * Keys Support -+ */ -+static struct pxa_keys_button hx2750_button_table[] = { -+ { KEY_POWER, HX2750_GPIO_KEYPWR, PXAKEY_PWR_KEY }, -+ { KEY_LEFT, HX2750_GPIO_KEYLEFT, 0 }, -+ { KEY_RIGHT, HX2750_GPIO_KEYRIGHT, 0 }, -+ { KEY_KP0, HX2750_GPIO_KEYCAL, 0 }, -+ { KEY_KP1, HX2750_GPIO_KEYTASK, 0 }, -+ { KEY_KP2, HX2750_GPIO_KEYSIDE, 0 }, -+ { KEY_ENTER, HX2750_GPIO_KEYENTER, 0 }, -+ { KEY_KP3, HX2750_GPIO_KEYCON, 0 }, //KEY_CONTACTS -+ { KEY_MAIL, HX2750_GPIO_KEYMAIL, 0 }, -+ { KEY_UP, HX2750_GPIO_KEYUP, 0 }, -+ { KEY_DOWN, HX2750_GPIO_KEYDOWN, 0 }, -+}; -+ -+static struct pxa_keys_platform_data hx2750_pxa_keys_data = { -+ .buttons = hx2750_button_table, -+ .nbuttons = ARRAY_SIZE(hx2750_button_table), -+}; -+ -+static struct platform_device hx2750_pxa_keys = { -+ .name = "pxa2xx-keys", -+ .dev = { -+ .platform_data = &hx2750_pxa_keys_data, -+ }, -+}; -+ -+ -+/* -+ * Backlight Device -+ */ -+extern struct platform_device pxafb_device; -+ -+static struct platform_device hx2750_bl_device = { -+ .name = "hx2750-bl", -+ .id = -1, -+// .dev = { -+// .parent = &pxafb_device.dev, -+// } -+}; -+ -+ -+/* -+ * UDC/USB -+ */ -+static int hx2750_udc_is_connected (void) -+{ -+ return GPLR0 & GPIO_bit(HX2750_GPIO_USBCONNECT); -+} -+ -+//static void hx2750_udc_command (int cmd) -+//{ -+//} -+ -+static struct pxa2xx_udc_mach_info hx2750_udc_mach_info = { -+ .udc_is_connected = hx2750_udc_is_connected, -+// .udc_command = hx2750_udc_command, -+}; -+ -+ -+/* -+ * SSP Devices Setup -+ */ -+static struct ssp_dev hx2750_ssp_dev1; -+static struct ssp_dev hx2750_ssp_dev2; -+static struct ssp_dev hx2750_ssp_dev3; -+ -+void hx2750_ssp_init(void) -+{ -+ pxa_gpio_mode(HX2750_GPIO_TSC2101_SS | GPIO_OUT | GPIO_DFLT_HIGH); -+ -+ if (ssp_init(&hx2750_ssp_dev1, 1, 0)) -+ printk(KERN_ERR "Unable to register SSP1 handler!\n"); -+ else { -+ ssp_disable(&hx2750_ssp_dev1); -+ ssp_config(&hx2750_ssp_dev1, (SSCR0_Motorola | (SSCR0_DSS & 0x0f )), SSCR1_SPH, 0, SSCR0_SerClkDiv(6)); -+ ssp_enable(&hx2750_ssp_dev1); -+ hx2750_set_egpio(HX2750_EGPIO_TSC_PWR); -+ } -+ -+// if (ssp_init(&hx2750_ssp_dev2, 2, 0)) -+// printk(KERN_ERR "Unable to register SSP2 handler!\n"); -+// else { -+// ssp_disable(&hx2750_ssp_dev2); -+// ssp_config(&hx2750_ssp_dev2, (SSCR0_TI | (SSCR0_DSS & 0x09 )), 0, 0, SSCR0_SerClkDiv(140)); -+// ssp_enable(&hx2750_ssp_dev2); -+// } -+// -+ if (ssp_init(&hx2750_ssp_dev3, 3, 0)) -+ printk(KERN_ERR "Unable to register SSP3 handler!\n"); -+ else { -+ ssp_disable(&hx2750_ssp_dev3); -+ ssp_config(&hx2750_ssp_dev3, (SSCR0_Motorola | (SSCR0_DSS & 0x07 )), SSCR1_SPO | SSCR1_SPH, 0, SSCR0_SerClkDiv(166)); -+ ssp_enable(&hx2750_ssp_dev3); -+ } -+ -+ printk("SSP Devices Initialised\n"); -+ -+ return; -+} -+ -+struct ssp_state ssp1; -+ -+void hx2750_ssp_suspend(void) -+{ -+ ssp_disable(&hx2750_ssp_dev1); -+ ssp_save_state(&hx2750_ssp_dev1,&ssp1); -+ hx2750_clear_egpio(HX2750_EGPIO_TSC_PWR); -+} -+ -+void hx2750_ssp_resume(void) -+{ -+ hx2750_set_egpio(HX2750_EGPIO_TSC_PWR); -+ ssp_restore_state(&hx2750_ssp_dev1,&ssp1); -+ ssp_enable(&hx2750_ssp_dev1); -+} -+ -+void hx2750_ssp_init2(void) -+{ -+ printk("Stage 1: %x\n",CKEN); -+ if (ssp_init(&hx2750_ssp_dev2, 2, 0)) -+ printk(KERN_ERR "Unable to register SSP2 handler!\n"); -+ else { -+ printk("Stage 2: %x\n",CKEN); -+ ssp_disable(&hx2750_ssp_dev2); -+ printk("Stage 3: %x\n",CKEN); -+ ssp_config(&hx2750_ssp_dev2, (SSCR0_TI | (SSCR0_DSS & 0x09 )) | SSCR0_SSE, 0, 0, SSCR0_SerClkDiv(212)); -+ printk("Stage 4: %x\n",CKEN); -+ ssp_enable(&hx2750_ssp_dev2); -+ printk("Stage 5: %x\n",CKEN); -+ } -+ printk("SSP Device2 Initialised\n"); -+ -+ printk("Sent: 0x3ff\n"); -+ ssp_write_word(&hx2750_ssp_dev2,0x3ff); -+ -+ return; -+} -+ -+void hx2750_ssp2_reset(void) -+{ -+ ssp_write_word(&hx2750_ssp_dev2,0x000); -+ ssp_write_word(&hx2750_ssp_dev2,0x000); -+ -+} -+ -+unsigned long hx2750_ssp2_read(void) -+{ -+ u32 ret = 0; -+ ssp_read_word(&hx2750_ssp_dev2, &ret); -+ return ret; -+} -+ -+void hx2750_ssp2_write(unsigned long data) -+{ -+ ssp_write_word(&hx2750_ssp_dev2, data); -+} -+ -+ -+/* -+ * Extra hx2750 Specific GPIOs -+ */ -+void hx2750_send_egpio(unsigned int val) -+{ -+ int i; -+ -+ GPCR0 = GPIO_bit(HX2750_GPIO_SR_STROBE); -+ GPCR1 = GPIO_bit(HX2750_GPIO_SR_CLK1); -+ -+ for (i=0;i<12;i++) { -+ if (val & 0x01) -+ GPSR2 = GPIO_bit(HX2750_GPIO_GPIO_DIN); -+ else -+ GPCR2 = GPIO_bit(HX2750_GPIO_GPIO_DIN); -+ val >>= 1; -+ GPSR1 = GPIO_bit(HX2750_GPIO_SR_CLK1); -+ GPCR1 = GPIO_bit(HX2750_GPIO_SR_CLK1); -+ } -+ -+ GPSR0 = GPIO_bit(HX2750_GPIO_SR_STROBE); -+ GPCR0 = GPIO_bit(HX2750_GPIO_SR_STROBE); -+} -+ -+EXPORT_SYMBOL(hx2750_send_egpio); -+ -+unsigned int hx2750_egpio_current; -+ -+void hx2750_set_egpio(unsigned int gpio) -+{ -+ hx2750_egpio_current|=gpio; -+ -+ hx2750_send_egpio(hx2750_egpio_current); -+} -+EXPORT_SYMBOL(hx2750_set_egpio); -+ -+void hx2750_clear_egpio(unsigned int gpio) -+{ -+ hx2750_egpio_current&=~gpio; -+ -+ hx2750_send_egpio(hx2750_egpio_current); -+} -+EXPORT_SYMBOL(hx2750_clear_egpio); -+ -+ -+/* -+ * Touchscreen/Sound/Battery Status -+ */ -+void hx2750_tsc2101_send(int read, int command, int *values, int numval) -+{ -+ u32 ret = 0; -+ int i; -+ -+ GPCR0 = GPIO_bit(HX2750_GPIO_TSC2101_SS); -+ -+ ssp_write_word(&hx2750_ssp_dev1, command | read); -+ /* dummy read */ -+ ssp_read_word(&hx2750_ssp_dev1, &ret); -+ -+ for (i=0; i < numval; i++) { -+ if (read) { -+ ssp_write_word(&hx2750_ssp_dev1, 0); -+ ssp_read_word(&hx2750_ssp_dev1, &values[i]); -+ } else { -+ ssp_write_word(&hx2750_ssp_dev1, values[i]); -+ ssp_read_word(&hx2750_ssp_dev1, &ret); -+ } -+ } -+ -+ GPSR0 = GPIO_bit(HX2750_GPIO_TSC2101_SS); -+} -+ -+static int hx2750_tsc2101_pendown(void) -+{ -+ if ((GPLR(HX2750_GPIO_PENDOWN) & GPIO_bit(HX2750_GPIO_PENDOWN)) == 0) -+ return 1; -+ return 0; -+} -+ -+static struct tsc2101_platform_info hx2750_tsc2101_info = { -+ .send = hx2750_tsc2101_send, -+ .suspend = hx2750_ssp_suspend, -+ .resume = hx2750_ssp_resume, -+ .irq = HX2750_IRQ_GPIO_PENDOWN, -+ .pendown = hx2750_tsc2101_pendown, -+}; -+ -+struct platform_device tsc2101_device = { -+ .name = "tsc2101", -+ .dev = { -+ .platform_data = &hx2750_tsc2101_info, -+ //.parent = &corgissp_device.dev, -+ }, -+ .id = -1, -+}; -+ -+ -+/* -+ * MMC/SD Device -+ * -+ * The card detect interrupt isn't debounced so we delay it by 250ms -+ * to give the card a chance to fully insert/eject. -+ */ -+static struct pxamci_platform_data hx2750_mci_platform_data; -+ -+static int hx2750_mci_init(struct device *dev, irq_handler_t hx2750_detect_int, void *data) -+{ -+ int err; -+ -+ /* -+ * setup GPIO for PXA27x MMC controller -+ */ -+ pxa_gpio_mode(GPIO32_MMCCLK_MD); -+ pxa_gpio_mode(GPIO112_MMCCMD_MD); -+ pxa_gpio_mode(GPIO92_MMCDAT0_MD); -+ pxa_gpio_mode(GPIO109_MMCDAT1_MD); -+ pxa_gpio_mode(GPIO110_MMCDAT2_MD); -+ pxa_gpio_mode(GPIO111_MMCDAT3_MD); -+ pxa_gpio_mode(HX2750_GPIO_SD_DETECT | GPIO_IN); -+ pxa_gpio_mode(HX2750_GPIO_SD_READONLY | GPIO_IN); -+ -+ hx2750_mci_platform_data.detect_delay = msecs_to_jiffies(250); -+ -+ err = request_irq(HX2750_IRQ_GPIO_SD_DETECT, hx2750_detect_int, -+ IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, -+ "MMC card detect", data); -+ if (err) { -+ printk(KERN_ERR "hx2750_mci_init: MMC/SD: can't request MMC card detect IRQ\n"); -+ return -1; -+ } -+ -+ return 0; -+} -+ -+static void hx2750_mci_setpower(struct device *dev, unsigned int vdd) -+{ -+ struct pxamci_platform_data* p_d = dev->platform_data; -+ -+ if (( 1 << vdd) & p_d->ocr_mask) -+ hx2750_set_egpio(HX2750_EGPIO_SD_PWR); -+ else -+ hx2750_clear_egpio(HX2750_EGPIO_SD_PWR); -+} -+ -+static void hx2750_mci_exit(struct device *dev, void *data) -+{ -+ free_irq(HX2750_IRQ_GPIO_SD_DETECT, data); -+} -+ -+static struct pxamci_platform_data hx2750_mci_platform_data = { -+ .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34, -+ .init = hx2750_mci_init, -+ .setpower = hx2750_mci_setpower, -+ .exit = hx2750_mci_exit, -+}; -+ -+ -+/* -+ * FrameBuffer -+ */ -+static struct pxafb_mode_info hx2750_pxafb_modes = { -+ .pixclock = 288462, -+ .xres = 240, -+ .yres = 320, -+ .bpp = 16, -+ .hsync_len = 20, -+ .left_margin = 42, -+ .right_margin = 18, -+ .vsync_len = 4, -+ .upper_margin = 3, -+ .lower_margin = 4, -+ .sync = 0, -+}; -+ -+static struct pxafb_mach_info hx2750_pxafb_info = { -+ .modes = &hx2750_pxafb_modes, -+ .num_modes = 1, -+ .fixed_modes = 1, -+ .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act, -+ .lccr3 = LCCR3_PixFlEdg | LCCR3_OutEnH, -+ .pxafb_backlight_power = NULL, -+}; -+ -+ -+/* -+ * Test Device -+ */ -+static struct platform_device hx2750_test_device = { -+ .name = "hx2750-test", -+ .id = -1, -+}; -+ -+ -+/* Initialization code */ -+static struct platform_device *devices[] __initdata = { -+ &hx2750_bl_device, -+ &hx2750_test_device, -+ &hx2750_pxa_keys, -+ &tsc2101_device, -+}; -+ -+static void __init hx2750_init( void ) -+{ -+ PWER = 0xC0000003;// | PWER_RTC; -+ PFER = 0x00000003; -+ PRER = 0x00000003; -+ -+ PGSR0=0x00000018; -+ PGSR1=0x00000380; -+ PGSR2=0x00800000; -+ PGSR3=0x00500400; -+ -+ //PCFR |= PCFR_OPDE; -+ PCFR=0x77; -+ PSLR=0xff100000; -+ //PCFR=0x10; - does not return from suspend -+ -+ //PCFR= 0x00004040; -+ //PSLR= 0xff400f04; -+ -+ /* Setup Extra GPIO Bank access */ -+ pxa_gpio_mode(HX2750_GPIO_GPIO_DIN | GPIO_OUT | GPIO_DFLT_HIGH); -+ pxa_gpio_mode(HX2750_GPIO_SR_CLK1 | GPIO_OUT | GPIO_DFLT_LOW); -+ pxa_gpio_mode(HX2750_GPIO_SR_CLK2 | GPIO_IN); -+ pxa_gpio_mode(HX2750_GPIO_SR_STROBE | GPIO_OUT | GPIO_DFLT_LOW); -+ -+ /* Init Extra GPIOs - Bootloader reset default is 0x484 */ -+ /* This is 0xe84 */ -+ hx2750_set_egpio(HX2750_EGPIO_2 | HX2750_EGPIO_7 | HX2750_EGPIO_LCD_PWR | HX2750_EGPIO_BL_PWR | HX2750_EGPIO_WIFI_PWR); -+ -+ pxa_set_udc_info(&hx2750_udc_mach_info); -+ pxa_set_mci_info(&hx2750_mci_platform_data); -+ set_pxa_fb_info(&hx2750_pxafb_info); -+ hx2750_ssp_init(); -+ platform_add_devices (devices, ARRAY_SIZE (devices)); -+} -+ -+ -+MACHINE_START(HX2750, "HP iPAQ HX2750") -+ .phys_io = 0x40000000, -+ .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, -+ .boot_params = 0xa0000100, -+ .map_io = pxa_map_io, -+ .init_irq = pxa_init_irq, -+ .timer = &pxa_timer, -+ .init_machine = hx2750_init, -+MACHINE_END -+ ---- linux-2.6.24-rc1.orig/arch/arm/mach-pxa/pm.c -+++ linux-2.6.24-rc1/arch/arm/mach-pxa/pm.c -@@ -17,6 +17,7 @@ - #include - - #include -+#include - #include - #include - #include -@@ -91,6 +92,9 @@ - .enter = pxa_pm_enter, - }; - -+unsigned long pxa_pm_pspr_value; -+extern void pxa_cpu_resume(void); -+ - static int __init pxa_pm_init(void) - { - if (!pxa_cpu_pm_fns) { -@@ -104,6 +108,7 @@ - return -ENOMEM; - } - -+ pxa_pm_pspr_value=virt_to_phys(pxa_cpu_resume); - suspend_set_ops(&pxa_pm_ops); - return 0; - } ---- linux-2.6.24-rc1.orig/arch/arm/mach-pxa/pxa27x.c -+++ linux-2.6.24-rc1/arch/arm/mach-pxa/pxa27x.c -@@ -259,6 +259,8 @@ - RESTORE(PSTR); - } - -+extern unsigned long pxa_pm_pspr_value; -+ - void pxa27x_cpu_pm_enter(suspend_state_t state) - { - extern void pxa_cpu_standby(void); -@@ -281,7 +283,7 @@ - break; - case PM_SUSPEND_MEM: - /* set resume return address */ -- PSPR = virt_to_phys(pxa_cpu_resume); -+ PSPR = pxa_pm_pspr_value; - pxa27x_cpu_suspend(PWRMODE_SLEEP); - break; - } ---- linux-2.6.24-rc1.orig/arch/arm/mach-pxa/pxa25x.c -+++ linux-2.6.24-rc1/arch/arm/mach-pxa/pxa25x.c -@@ -200,6 +200,8 @@ - RESTORE(PSTR); - } - -+extern unsigned long pxa_pm_pspr_value; -+ - static void pxa25x_cpu_pm_enter(suspend_state_t state) - { - CKEN = 0; -@@ -207,7 +209,7 @@ - switch (state) { - case PM_SUSPEND_MEM: - /* set resume return address */ -- PSPR = virt_to_phys(pxa_cpu_resume); -+ PSPR = pxa_pm_pspr_value; - pxa25x_cpu_suspend(PWRMODE_SLEEP); - break; - } diff --git a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/mmcsd_no_scr_check-r2.patch b/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/mmcsd_no_scr_check-r2.patch deleted file mode 100644 index ac2245f08..000000000 --- a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/mmcsd_no_scr_check-r2.patch +++ /dev/null @@ -1,29 +0,0 @@ ---- - drivers/mmc/core/sd.c | 11 ++++++----- - 1 file changed, 6 insertions(+), 5 deletions(-) - -Index: linux-2.6.23/drivers/mmc/core/sd.c -=================================================================== ---- linux-2.6.23.orig/drivers/mmc/core/sd.c 2007-10-17 11:33:26.000000000 +0200 -+++ linux-2.6.23/drivers/mmc/core/sd.c 2007-10-17 11:33:49.000000000 +0200 -@@ -173,14 +173,15 @@ - - scr_struct = UNSTUFF_BITS(resp, 60, 4); - if (scr_struct != 0) { -- printk(KERN_ERR "%s: unrecognised SCR structure version %d\n", -+ printk(KERN_WARNING "%s: unrecognised SCR structure version %d\n", - mmc_hostname(card->host), scr_struct); -- return -EINVAL; -+ scr->sda_vsn = 0; -+ scr->bus_widths = 0; -+ } else { -+ scr->sda_vsn = UNSTUFF_BITS(resp, 56, 4); -+ scr->bus_widths = UNSTUFF_BITS(resp, 48, 4); - } - -- scr->sda_vsn = UNSTUFF_BITS(resp, 56, 4); -- scr->bus_widths = UNSTUFF_BITS(resp, 48, 4); -- - return 0; - } - diff --git a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/pda-power.patch b/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/pda-power.patch deleted file mode 100644 index face2f4ef..000000000 --- a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/pda-power.patch +++ /dev/null @@ -1,3373 +0,0 @@ ---- - arch/arm/Kconfig | 2 - drivers/Kconfig | 2 - drivers/Makefile | 1 - drivers/power/Kconfig | 70 +++++ - drivers/power/Makefile | 28 ++ - drivers/power/adc_battery.c | 278 +++++++++++++++++++++ - drivers/power/apm_power.c | 247 +++++++++++++++++++ - drivers/power/ds2760_battery.c | 475 +++++++++++++++++++++++++++++++++++++ - drivers/power/micro_battery.c | 257 ++++++++++++++++++++ - drivers/power/olpc_battery.c | 302 +++++++++++++++++++++++ - drivers/power/pda_power.c | 263 ++++++++++++++++++++ - drivers/power/pmu_battery.c | 215 ++++++++++++++++ - drivers/power/power_supply.h | 42 +++ - drivers/power/power_supply_core.c | 168 +++++++++++++ - drivers/power/power_supply_leds.c | 188 ++++++++++++++ - drivers/power/power_supply_sysfs.c | 289 ++++++++++++++++++++++ - drivers/power/simpad-battery.c | 242 ++++++++++++++++++ - include/linux/power_supply.h | 175 +++++++++++++ - 18 files changed, 3244 insertions(+) - -Index: linux-2.6.22/drivers/power/adc_battery.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/drivers/power/adc_battery.c 2007-08-23 12:26:28.000000000 +0200 -@@ -0,0 +1,278 @@ -+/* -+ * Copyright (c) 2007 Paul Sokolovsky -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License as published by -+ * the Free Software Foundation; either version 2 of the License, or -+ * (at your option) any later version. -+ * -+ */ -+ -+//#define DEBUG -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+ -+#define PIN_NO_VOLT 0 -+#define PIN_NO_CURR 1 -+#define PIN_NO_TEMP 2 -+ -+struct battery_adc_priv { -+ struct power_supply batt_cdev; -+ -+ struct battery_adc_platform_data *pdata; -+ -+ struct adc_request req; -+ struct adc_sense pins[3]; -+ struct adc_sense last_good_pins[3]; -+ -+ struct workqueue_struct *wq; -+ struct delayed_work work; -+}; -+ -+/* -+ * Battery properties -+ */ -+ -+static int adc_battery_get_property(struct power_supply *psy, -+ enum power_supply_property psp, -+ union power_supply_propval *val) -+{ -+ struct battery_adc_priv* drvdata = (struct battery_adc_priv*)psy; -+ int voltage; -+ -+ switch (psp) { -+ case POWER_SUPPLY_PROP_STATUS: -+ val->intval = drvdata->pdata->charge_status; -+ break; -+ case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: -+ val->intval = drvdata->pdata->battery_info.voltage_max_design; -+ break; -+ case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: -+ val->intval = drvdata->pdata->battery_info.voltage_min_design; -+ break; -+ case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: -+ val->intval = drvdata->pdata->battery_info.charge_full_design; -+ break; -+ case POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN: -+ val->intval = drvdata->pdata->battery_info.charge_empty_design; -+ break; -+ case POWER_SUPPLY_PROP_VOLTAGE_NOW: -+ val->intval = drvdata->last_good_pins[PIN_NO_VOLT].value * drvdata->pdata->voltage_mult; -+ break; -+ case POWER_SUPPLY_PROP_CURRENT_NOW: -+ val->intval = drvdata->last_good_pins[PIN_NO_CURR].value * drvdata->pdata->current_mult; -+ break; -+ case POWER_SUPPLY_PROP_CHARGE_NOW: -+ /* We do calculations in mX, not uX, because todo it in uX we should use "long long"s, -+ * which is a mess (need to use do_div) when you need divide operation). */ -+ voltage = drvdata->last_good_pins[PIN_NO_VOLT].value * drvdata->pdata->voltage_mult; -+ val->intval = ((voltage/1000 - drvdata->pdata->battery_info.voltage_min_design/1000) * -+ (drvdata->pdata->battery_info.charge_full_design/1000 - -+ drvdata->pdata->battery_info.charge_empty_design/1000)) / -+ (drvdata->pdata->battery_info.voltage_max_design/1000 - -+ drvdata->pdata->battery_info.voltage_min_design/1000); -+ val->intval *= 1000; /* convert final result to uX */ -+ break; -+ case POWER_SUPPLY_PROP_TEMP: -+ val->intval = drvdata->last_good_pins[PIN_NO_TEMP].value * drvdata->pdata->temperature_mult / 1000; -+ break; -+ default: -+ return -EINVAL; -+ }; -+ return 0; -+} -+ -+/* -+ * Driver body -+ */ -+ -+static void adc_battery_query(struct battery_adc_priv *drvdata) -+{ -+ struct battery_adc_platform_data *pdata = drvdata->pdata; -+ int powered, charging; -+ -+ adc_request_sample(&drvdata->req); -+ -+ powered = power_supply_am_i_supplied(&drvdata->batt_cdev); -+ charging = pdata->is_charging ? pdata->is_charging() : -1; -+ -+ if (powered && charging) -+ pdata->charge_status = POWER_SUPPLY_STATUS_CHARGING; -+ else if (powered && !charging && charging != -1) -+ pdata->charge_status = POWER_SUPPLY_STATUS_FULL; -+ else -+ pdata->charge_status = POWER_SUPPLY_STATUS_DISCHARGING; -+ -+ /* Throw away invalid samples, this may happen soon after resume for example. */ -+ if (drvdata->pins[PIN_NO_VOLT].value > 0) { -+ memcpy(drvdata->last_good_pins, drvdata->pins, sizeof(drvdata->pins)); -+#ifdef DEBUG -+ printk("%d %d %d\n", drvdata->pins[PIN_NO_VOLT].value, -+ drvdata->pins[PIN_NO_CURR].value, -+ drvdata->pins[PIN_NO_TEMP].value); -+#endif -+ } -+} -+ -+static void adc_battery_charge_power_changed(struct power_supply *bat) -+{ -+ struct battery_adc_priv *drvdata = (struct battery_adc_priv*)bat; -+ cancel_delayed_work(&drvdata->work); -+ queue_delayed_work(drvdata->wq, &drvdata->work, 0); -+} -+ -+static void adc_battery_work_func(struct work_struct *work) -+{ -+ struct delayed_work *delayed_work = container_of(work, struct delayed_work, work); -+ struct battery_adc_priv *drvdata = container_of(delayed_work, struct battery_adc_priv, work); -+ -+ adc_battery_query(drvdata); -+ power_supply_changed(&drvdata->batt_cdev); -+ -+ queue_delayed_work(drvdata->wq, &drvdata->work, (5000 * HZ) / 1000); -+} -+ -+static int adc_battery_probe(struct platform_device *pdev) -+{ -+ int retval; -+ struct battery_adc_platform_data *pdata = pdev->dev.platform_data; -+ struct battery_adc_priv *drvdata; -+ int i, j; -+ enum power_supply_property props[] = { -+ POWER_SUPPLY_PROP_STATUS, -+ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, -+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, -+ POWER_SUPPLY_PROP_VOLTAGE_NOW, -+ POWER_SUPPLY_PROP_CURRENT_NOW, -+ POWER_SUPPLY_PROP_CHARGE_NOW, -+ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, -+ POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN, -+ POWER_SUPPLY_PROP_TEMP, -+ }; -+ -+ // Initialize ts data structure. -+ drvdata = kzalloc(sizeof(*drvdata), GFP_KERNEL); -+ if (!drvdata) -+ return -ENOMEM; -+ -+ drvdata->batt_cdev.name = pdata->battery_info.name; -+ drvdata->batt_cdev.use_for_apm = pdata->battery_info.use_for_apm; -+ drvdata->batt_cdev.num_properties = ARRAY_SIZE(props); -+ drvdata->batt_cdev.get_property = adc_battery_get_property; -+ drvdata->batt_cdev.external_power_changed = -+ adc_battery_charge_power_changed; -+ -+ if (!pdata->voltage_pin) { -+ drvdata->batt_cdev.num_properties--; -+ props[3] = -1; -+ } -+ if (!pdata->current_pin) { -+ drvdata->batt_cdev.num_properties--; -+ props[4] = -1; -+ } -+ if (!pdata->temperature_pin) { -+ drvdata->batt_cdev.num_properties--; -+ props[8] = -1; -+ } -+ -+ drvdata->batt_cdev.properties = kmalloc( -+ sizeof(*drvdata->batt_cdev.properties) * -+ drvdata->batt_cdev.num_properties, GFP_KERNEL); -+ if (!drvdata->batt_cdev.properties) -+ return -ENOMEM; -+ -+ j = 0; -+ for (i = 0; i < ARRAY_SIZE(props); i++) { -+ if (props[i] == -1) -+ continue; -+ drvdata->batt_cdev.properties[j++] = props[i]; -+ } -+ -+ retval = power_supply_register(&pdev->dev, &drvdata->batt_cdev); -+ if (retval) { -+ printk("adc-battery: Error registering battery classdev"); -+ return retval; -+ } -+ -+ drvdata->req.senses = drvdata->pins; -+ drvdata->req.num_senses = ARRAY_SIZE(drvdata->pins); -+ drvdata->pins[PIN_NO_VOLT].name = pdata->voltage_pin; -+ drvdata->pins[PIN_NO_CURR].name = pdata->current_pin; -+ drvdata->pins[PIN_NO_TEMP].name = pdata->temperature_pin; -+ -+ adc_request_register(&drvdata->req); -+ -+ /* Here we assume raw values in mV */ -+ if (!pdata->voltage_mult) -+ pdata->voltage_mult = 1000; -+ /* Here we assume raw values in mA */ -+ if (!pdata->current_mult) -+ pdata->current_mult = 1000; -+ /* Here we assume raw values in 1/10 C */ -+ if (!pdata->temperature_mult) -+ pdata->temperature_mult = 1000; -+ -+ drvdata->pdata = pdata; -+ pdata->drvdata = drvdata; /* Seems ugly, we need better solution */ -+ -+ platform_set_drvdata(pdev, drvdata); -+ -+ // Load initial values ASAP -+ adc_battery_query(drvdata); -+ -+ // Still schedule next sampling soon -+ INIT_DELAYED_WORK(&drvdata->work, adc_battery_work_func); -+ drvdata->wq = create_workqueue(pdev->dev.bus_id); -+ if (!drvdata->wq) -+ return -ESRCH; -+ -+ queue_delayed_work(drvdata->wq, &drvdata->work, (5000 * HZ) / 1000); -+ -+ return retval; -+} -+ -+static int adc_battery_remove(struct platform_device *pdev) -+{ -+ struct battery_adc_priv *drvdata = platform_get_drvdata(pdev); -+ cancel_delayed_work(&drvdata->work); -+ destroy_workqueue(drvdata->wq); -+ power_supply_unregister(&drvdata->batt_cdev); -+ adc_request_unregister(&drvdata->req); -+ kfree(drvdata->batt_cdev.properties); -+ return 0; -+} -+ -+static struct platform_driver adc_battery_driver = { -+ .driver = { -+ .name = "adc-battery", -+ }, -+ .probe = adc_battery_probe, -+ .remove = adc_battery_remove, -+}; -+ -+static int __init adc_battery_init(void) -+{ -+ return platform_driver_register(&adc_battery_driver); -+} -+ -+static void __exit adc_battery_exit(void) -+{ -+ platform_driver_unregister(&adc_battery_driver); -+} -+ -+module_init(adc_battery_init) -+module_exit(adc_battery_exit) -+ -+MODULE_AUTHOR("Paul Sokolovsky"); -+MODULE_DESCRIPTION("Battery driver for ADC device"); -+MODULE_LICENSE("GPL"); -Index: linux-2.6.22/drivers/power/apm_power.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/drivers/power/apm_power.c 2007-08-23 12:13:52.000000000 +0200 -@@ -0,0 +1,247 @@ -+/* -+ * Copyright (c) 2007 Anton Vorontsov -+ * Copyright (c) 2007 Eugeny Boger -+ * -+ * Author: Eugeny Boger -+ * -+ * Use consistent with the GNU GPL is permitted, -+ * provided that this copyright notice is -+ * preserved in its entirety in all copies and derived works. -+ */ -+ -+#include -+#include -+#include -+ -+#define PSY_PROP(psy, prop, val) psy->get_property(psy, \ -+ POWER_SUPPLY_PROP_##prop, val) -+ -+#define _MPSY_PROP(prop, val) main_battery->get_property(main_battery, \ -+ prop, val) -+ -+#define MPSY_PROP(prop, val) _MPSY_PROP(POWER_SUPPLY_PROP_##prop, val) -+ -+static struct power_supply *main_battery; -+ -+static void find_main_battery(void) -+{ -+ struct device *dev; -+ struct power_supply *bat, *batm; -+ union power_supply_propval full; -+ int max_charge = 0; -+ -+ main_battery = NULL; -+ batm = NULL; -+ list_for_each_entry(dev, &power_supply_class->devices, node) { -+ bat = dev_get_drvdata(dev); -+ /* If none of battery devices cantains 'use_for_apm' flag, -+ choice one with maximum design charge */ -+ if (!PSY_PROP(bat, CHARGE_FULL_DESIGN, &full)) { -+ if (full.intval > max_charge) { -+ batm = bat; -+ max_charge = full.intval; -+ } -+ } -+ -+ if (bat->use_for_apm) -+ main_battery = bat; -+ } -+ if (!main_battery) -+ main_battery = batm; -+ -+ return; -+} -+ -+static int calculate_time(int status) -+{ -+ union power_supply_propval charge_full, charge_empty; -+ union power_supply_propval charge, I; -+ -+ if (MPSY_PROP(CHARGE_FULL, &charge_full)) { -+ /* if battery can't report this property, use design value */ -+ if (MPSY_PROP(CHARGE_FULL_DESIGN, &charge_full)) -+ return -1; -+ } -+ -+ if (MPSY_PROP(CHARGE_EMPTY, &charge_empty)) { -+ /* if battery can't report this property, use design value */ -+ if (MPSY_PROP(CHARGE_EMPTY_DESIGN, &charge_empty)) -+ charge_empty.intval = 0; -+ } -+ -+ if (MPSY_PROP(CHARGE_AVG, &charge)) { -+ /* if battery can't report average value, use momentary */ -+ if (MPSY_PROP(CHARGE_NOW, &charge)) -+ return -1; -+ } -+ -+ if (MPSY_PROP(CURRENT_AVG, &I)) { -+ /* if battery can't report average value, use momentary */ -+ if (MPSY_PROP(CURRENT_NOW, &I)) -+ return -1; -+ } -+ -+ if (I.intval == 0) -+ return 0; -+ else if (status == POWER_SUPPLY_STATUS_CHARGING) -+ return ((charge.intval - charge_full.intval) * 60L) / -+ I.intval; -+ else -+ return -((charge.intval - charge_empty.intval) * 60L) / -+ I.intval; -+} -+ -+static int calculate_capacity(int using_charge) -+{ -+ enum power_supply_property full_prop, empty_prop; -+ enum power_supply_property full_design_prop, empty_design_prop; -+ enum power_supply_property now_prop, avg_prop; -+ union power_supply_propval empty, full, cur; -+ int ret; -+ -+ if (using_charge) { -+ full_prop = POWER_SUPPLY_PROP_CHARGE_FULL; -+ empty_prop = POWER_SUPPLY_PROP_CHARGE_EMPTY; -+ full_design_prop = POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN; -+ empty_design_prop = POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN; -+ now_prop = POWER_SUPPLY_PROP_CHARGE_NOW; -+ avg_prop = POWER_SUPPLY_PROP_CHARGE_AVG; -+ } -+ else { -+ full_prop = POWER_SUPPLY_PROP_ENERGY_FULL; -+ empty_prop = POWER_SUPPLY_PROP_ENERGY_EMPTY; -+ full_design_prop = POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN; -+ empty_design_prop = POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN; -+ now_prop = POWER_SUPPLY_PROP_ENERGY_NOW; -+ avg_prop = POWER_SUPPLY_PROP_ENERGY_AVG; -+ } -+ -+ if (_MPSY_PROP(full_prop, &full)) { -+ /* if battery can't report this property, use design value */ -+ if (_MPSY_PROP(full_design_prop, &full)) -+ return -1; -+ } -+ -+ if (_MPSY_PROP(avg_prop, &cur)) { -+ /* if battery can't report average value, use momentary */ -+ if (_MPSY_PROP(now_prop, &cur)) -+ return -1; -+ } -+ -+ if (_MPSY_PROP(empty_prop, &empty)) { -+ /* if battery can't report this property, use design value */ -+ if (_MPSY_PROP(empty_design_prop, &empty)) -+ empty.intval = 0; -+ } -+ -+ if (full.intval - empty.intval) -+ ret = ((cur.intval - empty.intval) * 100L) / -+ (full.intval - empty.intval); -+ else -+ return -1; -+ -+ if (ret > 100) -+ return 100; -+ else if (ret < 0) -+ return 0; -+ -+ return ret; -+} -+ -+static void apm_battery_apm_get_power_status(struct apm_power_info *info) -+{ -+ union power_supply_propval status; -+ union power_supply_propval capacity, time_to_full, time_to_empty; -+ -+ down(&power_supply_class->sem); -+ find_main_battery(); -+ if (!main_battery) { -+ up(&power_supply_class->sem); -+ return; -+ } -+ -+ /* status */ -+ -+ if (MPSY_PROP(STATUS, &status)) -+ status.intval = POWER_SUPPLY_STATUS_UNKNOWN; -+ -+ /* ac line status */ -+ -+ if ((status.intval == POWER_SUPPLY_STATUS_CHARGING) || -+ (status.intval == POWER_SUPPLY_STATUS_NOT_CHARGING) || -+ (status.intval == POWER_SUPPLY_STATUS_FULL)) -+ info->ac_line_status = APM_AC_ONLINE; -+ else -+ info->ac_line_status = APM_AC_OFFLINE; -+ -+ /* battery life (i.e. capacity, in percents) */ -+ -+ if (MPSY_PROP(CAPACITY, &capacity) == 0) -+ info->battery_life = capacity.intval; -+ else { -+ /* try calculate using energy */ -+ info->battery_life = calculate_capacity(0); -+ /* if failed try calculate using charge instead */ -+ if (info->battery_life == -1) -+ info->battery_life = calculate_capacity(1); -+ } -+ -+ /* charging status */ -+ -+ if (status.intval == POWER_SUPPLY_STATUS_CHARGING) -+ info->battery_status = APM_BATTERY_STATUS_CHARGING; -+ else { -+ if (info->battery_life > 50) -+ info->battery_status = APM_BATTERY_STATUS_HIGH; -+ else if (info->battery_life > 5) -+ info->battery_status = APM_BATTERY_STATUS_LOW; -+ else -+ info->battery_status = APM_BATTERY_STATUS_CRITICAL; -+ } -+ info->battery_flag = info->battery_status; -+ -+ /* time */ -+ -+ info->units = APM_UNITS_MINS; -+ -+ if (status.intval == POWER_SUPPLY_STATUS_CHARGING) { -+ if (MPSY_PROP(TIME_TO_FULL_AVG, &time_to_full)) { -+ if (MPSY_PROP(TIME_TO_FULL_NOW, &time_to_full)) -+ info->time = calculate_time(status.intval); -+ else -+ info->time = time_to_full.intval / 60; -+ } -+ } -+ else { -+ if (MPSY_PROP(TIME_TO_EMPTY_AVG, &time_to_empty)) { -+ if (MPSY_PROP(TIME_TO_EMPTY_NOW, &time_to_empty)) -+ info->time = calculate_time(status.intval); -+ else -+ info->time = time_to_empty.intval / 60; -+ } -+ } -+ -+ up(&power_supply_class->sem); -+ return; -+} -+ -+static int __init apm_battery_init(void) -+{ -+ printk(KERN_INFO "APM Battery Driver\n"); -+ -+ apm_get_power_status = apm_battery_apm_get_power_status; -+ return 0; -+} -+ -+static void __exit apm_battery_exit(void) -+{ -+ apm_get_power_status = NULL; -+ return; -+} -+ -+module_init(apm_battery_init); -+module_exit(apm_battery_exit); -+ -+MODULE_AUTHOR("Eugeny Boger "); -+MODULE_DESCRIPTION("APM emulation driver for battery monitoring class"); -+MODULE_LICENSE("GPL"); -Index: linux-2.6.22/drivers/power/ds2760_battery.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/drivers/power/ds2760_battery.c 2007-08-23 12:13:52.000000000 +0200 -@@ -0,0 +1,475 @@ -+/* -+ * Driver for batteries with DS2760 chips inside. -+ * -+ * Copyright (c) 2007 Anton Vorontsov -+ * 2004-2007 Matt Reimer -+ * 2004 Szabolcs Gyurko -+ * -+ * Use consistent with the GNU GPL is permitted, -+ * provided that this copyright notice is -+ * preserved in its entirety in all copies and derived works. -+ * -+ * Author: Anton Vorontsov -+ * February 2007 -+ * -+ * Matt Reimer -+ * April 2004, 2005, 2007 -+ * -+ * Szabolcs Gyurko -+ * September 2004 -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include "../w1/w1.h" -+#include "../w1/slaves/w1_ds2760.h" -+ -+struct ds2760_device_info { -+ struct device *dev; -+ -+ /* DS2760 data, valid after calling ds2760_battery_read_status() */ -+ unsigned long update_time; /* jiffies when data read */ -+ char raw[DS2760_DATA_SIZE]; /* raw DS2760 data */ -+ int voltage_raw; /* units of 4.88 mV */ -+ int voltage_uV; /* units of uV */ -+ int current_raw; /* units of 0.625 mA */ -+ int current_uA; /* units of uA */ -+ int accum_current_raw; /* units of 0.25 mAh */ -+ int accum_current_uAh; /* units of uAh */ -+ int temp_raw; /* units of 0.125 C */ -+ int temp_C; /* units of 0.1 C */ -+ int rated_capacity; /* units of uAh */ -+ int rem_capacity; /* percentage */ -+ int full_active_uAh; /* units of uAh */ -+ int empty_uAh; /* units of uAh */ -+ int life_sec; /* units of seconds */ -+ int charge_status; /* POWER_SUPPLY_STATUS_* */ -+ -+ int full_counter; -+ struct power_supply bat; -+ struct device *w1_dev; -+ struct workqueue_struct *monitor_wqueue; -+ struct delayed_work monitor_work; -+}; -+ -+static unsigned int cache_time = 1000; -+module_param(cache_time, uint, 0644); -+MODULE_PARM_DESC(cache_time, "cache time in milliseconds"); -+ -+/* Some batteries have their rated capacity stored a N * 10 mAh, while -+ * others use an index into this table. */ -+static int rated_capacities[] = { -+ 0, -+ 920, /* Samsung */ -+ 920, /* BYD */ -+ 920, /* Lishen */ -+ 920, /* NEC */ -+ 1440, /* Samsung */ -+ 1440, /* BYD */ -+ 1440, /* Lishen */ -+ 1440, /* NEC */ -+ 2880, /* Samsung */ -+ 2880, /* BYD */ -+ 2880, /* Lishen */ -+ 2880 /* NEC */ -+}; -+ -+/* array is level at temps 0C, 10C, 20C, 30C, 40C -+ * temp is in Celsius */ -+static int battery_interpolate(int array[], int temp) -+{ -+ int index, dt; -+ -+ if (temp <= 0) -+ return array[0]; -+ if (temp >= 40) -+ return array[4]; -+ -+ index = temp / 10; -+ dt = temp % 10; -+ -+ return array[index] + (((array[index + 1] - array[index]) * dt) / 10); -+} -+ -+static int ds2760_battery_read_status(struct ds2760_device_info *di) -+{ -+ int ret, i, start, count, scale[5]; -+ -+ if (di->update_time && time_before(jiffies, di->update_time + -+ msecs_to_jiffies(cache_time))) -+ return 0; -+ -+ /* The first time we read the entire contents of SRAM/EEPROM, -+ * but after that we just read the interesting bits that change. */ -+ if (di->update_time == 0) { -+ start = 0; -+ count = DS2760_DATA_SIZE; -+ } -+ else { -+ start = DS2760_VOLTAGE_MSB; -+ count = DS2760_TEMP_LSB - start + 1; -+ } -+ -+ ret = w1_ds2760_read(di->w1_dev, di->raw + start, start, count); -+ if (ret != count) { -+ dev_warn(di->dev, "call to w1_ds2760_read failed (0x%p)\n", -+ di->w1_dev); -+ return 1; -+ } -+ -+ di->update_time = jiffies; -+ -+ /* DS2760 reports voltage in units of 4.88mV, but the battery class -+ * reports in units of uV, so convert by multiplying by 4880. */ -+ di->voltage_raw = (di->raw[DS2760_VOLTAGE_MSB] << 3) | -+ (di->raw[DS2760_VOLTAGE_LSB] >> 5); -+ di->voltage_uV = di->voltage_raw * 4880; -+ -+ /* DS2760 reports current in signed units of 0.625mA, but the battery -+ * class reports in units of uA, so convert by multiplying by 625. */ -+ di->current_raw = -+ (((signed char)di->raw[DS2760_CURRENT_MSB]) << 5) | -+ (di->raw[DS2760_CURRENT_LSB] >> 3); -+ di->current_uA = di->current_raw * 625; -+ -+ /* DS2760 reports accumulated current in signed units of 0.25mAh. */ -+ di->accum_current_raw = -+ (((signed char)di->raw[DS2760_CURRENT_ACCUM_MSB]) << 8) | -+ di->raw[DS2760_CURRENT_ACCUM_LSB]; -+ di->accum_current_uAh = di->accum_current_raw * 250; -+ -+ /* DS2760 reports temperature in signed units of 0.125C, but the -+ * battery class reports in units of 1/10 C, so we convert by -+ * multiplying by .125 * 10 = 1.25. */ -+ di->temp_raw = (((signed char)di->raw[DS2760_TEMP_MSB]) << 3) | -+ (di->raw[DS2760_TEMP_LSB] >> 5); -+ di->temp_C = di->temp_raw + (di->temp_raw / 4); -+ -+ /* At least some battery monitors (e.g. HP iPAQ) store the battery's -+ * maximum rated capacity. */ -+ if (di->raw[DS2760_RATED_CAPACITY] < ARRAY_SIZE(rated_capacities)) -+ di->rated_capacity = rated_capacities[ -+ (unsigned int)di->raw[DS2760_RATED_CAPACITY]]; -+ else -+ di->rated_capacity = di->raw[DS2760_RATED_CAPACITY] * 10; -+ -+ di->rated_capacity *= 1000; /* convert to uAh */ -+ -+ /* Calculate the full level at the present temperature. */ -+ di->full_active_uAh = di->raw[DS2760_ACTIVE_FULL] << 8 | -+ di->raw[DS2760_ACTIVE_FULL + 1]; -+ -+ scale[0] = di->raw[DS2760_ACTIVE_FULL] << 8 | -+ di->raw[DS2760_ACTIVE_FULL + 1]; -+ for (i = 1; i < 5; i++) -+ scale[i] = scale[i - 1] + di->raw[DS2760_ACTIVE_FULL + 2 + i]; -+ -+ di->full_active_uAh = battery_interpolate(scale, di->temp_C / 10); -+ di->full_active_uAh *= 1000; /* convert to uAh */ -+ -+ /* Calculate the empty level at the present temperature. */ -+ scale[4] = di->raw[DS2760_ACTIVE_EMPTY + 4]; -+ for (i = 3; i >= 0; i--) -+ scale[i] = scale[i + 1] + di->raw[DS2760_ACTIVE_EMPTY + i]; -+ -+ di->empty_uAh = battery_interpolate(scale, di->temp_C / 10); -+ di->empty_uAh *= 1000; /* convert to uAh */ -+ -+ /* From Maxim Application Note 131: remaining capacity = -+ * ((ICA - Empty Value) / (Full Value - Empty Value)) x 100% */ -+ di->rem_capacity = ((di->accum_current_uAh - di->empty_uAh) * 100L) / -+ (di->full_active_uAh - di->empty_uAh); -+ -+ if (di->rem_capacity < 0) -+ di->rem_capacity = 0; -+ if (di->rem_capacity > 100) -+ di->rem_capacity = 100; -+ -+ if (di->current_uA) -+ di->life_sec = -((di->accum_current_uAh - di->empty_uAh) * -+ 3600L) / di->current_uA; -+ else -+ di->life_sec = 0; -+ -+ return 0; -+} -+ -+static void ds2760_battery_update_status(struct ds2760_device_info *di) -+{ -+ int old_charge_status = di->charge_status; -+ -+ ds2760_battery_read_status(di); -+ -+ if (di->charge_status == POWER_SUPPLY_STATUS_UNKNOWN) -+ di->full_counter = 0; -+ -+ if (power_supply_am_i_supplied(&di->bat)) { -+ if (di->current_uA > 10000) { -+ di->charge_status = POWER_SUPPLY_STATUS_CHARGING; -+ di->full_counter = 0; -+ } -+ else if (di->current_uA < -5000) { -+ if (di->charge_status != POWER_SUPPLY_STATUS_NOT_CHARGING) -+ dev_notice(di->dev, "not enough power to " -+ "charge\n"); -+ di->charge_status = POWER_SUPPLY_STATUS_NOT_CHARGING; -+ di->full_counter = 0; -+ } -+ else if (di->current_uA < 10000 && -+ di->charge_status != POWER_SUPPLY_STATUS_FULL) { -+ -+ /* Don't consider the battery to be full unless -+ * we've seen the current < 10 mA at least two -+ * consecutive times. */ -+ -+ di->full_counter++; -+ -+ if (di->full_counter < 2) -+ di->charge_status = POWER_SUPPLY_STATUS_CHARGING; -+ else { -+ unsigned char acr[2]; -+ int acr_val; -+ -+ /* acr is in units of 0.25 mAh */ -+ acr_val = di->full_active_uAh * 4L / 1000; -+ -+ acr[0] = acr_val >> 8; -+ acr[1] = acr_val & 0xff; -+ -+ if (w1_ds2760_write(di->w1_dev, acr, -+ DS2760_CURRENT_ACCUM_MSB, 2) < 2) -+ dev_warn(di->dev, -+ "ACR reset failed\n"); -+ -+ di->charge_status = POWER_SUPPLY_STATUS_FULL; -+ } -+ } -+ } -+ else { -+ di->charge_status = POWER_SUPPLY_STATUS_DISCHARGING; -+ di->full_counter = 0; -+ } -+ -+ if (di->charge_status != old_charge_status) -+ power_supply_changed(&di->bat); -+ -+ return; -+} -+ -+static void ds2760_battery_work(struct work_struct *work) -+{ -+ struct ds2760_device_info *di = container_of(work, -+ struct ds2760_device_info, monitor_work.work); -+ const int interval = HZ * 60; -+ -+ dev_dbg(di->dev, "%s\n", __FUNCTION__); -+ -+ ds2760_battery_update_status(di); -+ queue_delayed_work(di->monitor_wqueue, &di->monitor_work, interval); -+ -+ return; -+} -+ -+#define to_ds2760_device_info(x) container_of((x), struct ds2760_device_info, \ -+ bat); -+ -+static void ds2760_battery_external_power_changed(struct power_supply *psy) -+{ -+ struct ds2760_device_info *di = to_ds2760_device_info(psy); -+ -+ dev_dbg(di->dev, "%s\n", __FUNCTION__); -+ -+ cancel_delayed_work(&di->monitor_work); -+ queue_delayed_work(di->monitor_wqueue, &di->monitor_work, HZ/10); -+ -+ return; -+} -+ -+static int ds2760_battery_get_property(struct power_supply *psy, -+ enum power_supply_property psp, -+ union power_supply_propval *val) -+{ -+ struct ds2760_device_info *di = to_ds2760_device_info(psy); -+ -+ switch (psp) { -+ case POWER_SUPPLY_PROP_STATUS: -+ val->intval = di->charge_status; -+ return 0; -+ default: -+ break; -+ } -+ -+ ds2760_battery_read_status(di); -+ -+ switch (psp) { -+ case POWER_SUPPLY_PROP_VOLTAGE_NOW: -+ val->intval = di->voltage_uV; -+ break; -+ case POWER_SUPPLY_PROP_CURRENT_NOW: -+ val->intval = di->current_uA; -+ break; -+ case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: -+ val->intval = di->rated_capacity; -+ break; -+ case POWER_SUPPLY_PROP_CHARGE_FULL: -+ val->intval = di->full_active_uAh; -+ break; -+ case POWER_SUPPLY_PROP_CHARGE_EMPTY: -+ val->intval = di->empty_uAh; -+ break; -+ case POWER_SUPPLY_PROP_CHARGE_NOW: -+ val->intval = di->accum_current_uAh; -+ break; -+ case POWER_SUPPLY_PROP_TEMP: -+ val->intval = di->temp_C; -+ break; -+ default: -+ return -EINVAL; -+ } -+ -+ return 0; -+} -+ -+static enum power_supply_property ds2760_battery_props[] = { -+ POWER_SUPPLY_PROP_STATUS, -+ POWER_SUPPLY_PROP_VOLTAGE_NOW, -+ POWER_SUPPLY_PROP_CURRENT_NOW, -+ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, -+ POWER_SUPPLY_PROP_CHARGE_FULL, -+ POWER_SUPPLY_PROP_CHARGE_EMPTY, -+ POWER_SUPPLY_PROP_CHARGE_NOW, -+ POWER_SUPPLY_PROP_TEMP, -+}; -+ -+static int ds2760_battery_probe(struct platform_device *pdev) -+{ -+ int retval = 0; -+ struct ds2760_device_info *di; -+ struct ds2760_platform_data *pdata; -+ -+ di = kzalloc(sizeof(*di), GFP_KERNEL); -+ if (!di) { -+ retval = -ENOMEM; -+ goto di_alloc_failed; -+ } -+ -+ platform_set_drvdata(pdev, di); -+ -+ pdata = pdev->dev.platform_data; -+ di->dev = &pdev->dev; -+ di->w1_dev = pdev->dev.parent; -+ di->bat.name = pdev->dev.bus_id; -+ di->bat.type = POWER_SUPPLY_TYPE_BATTERY; -+ di->bat.properties = ds2760_battery_props; -+ di->bat.num_properties = ARRAY_SIZE(ds2760_battery_props); -+ di->bat.get_property = ds2760_battery_get_property; -+ di->bat.external_power_changed = -+ ds2760_battery_external_power_changed; -+ di->bat.use_for_apm = 1; -+ -+ di->charge_status = POWER_SUPPLY_STATUS_UNKNOWN; -+ -+ retval = power_supply_register(&pdev->dev, &di->bat); -+ if (retval) { -+ dev_err(di->dev, "failed to register battery"); -+ goto batt_failed; -+ } -+ -+ INIT_DELAYED_WORK(&di->monitor_work, ds2760_battery_work); -+ di->monitor_wqueue = create_singlethread_workqueue(pdev->dev.bus_id); -+ if (!di->monitor_wqueue) { -+ retval = -ESRCH; -+ goto workqueue_failed; -+ } -+ queue_delayed_work(di->monitor_wqueue, &di->monitor_work, HZ * 1); -+ -+ goto success; -+ -+workqueue_failed: -+ power_supply_unregister(&di->bat); -+batt_failed: -+ kfree(di); -+di_alloc_failed: -+success: -+ return retval; -+} -+ -+static int ds2760_battery_remove(struct platform_device *pdev) -+{ -+ struct ds2760_device_info *di = platform_get_drvdata(pdev); -+ -+ cancel_rearming_delayed_workqueue(di->monitor_wqueue, -+ &di->monitor_work); -+ destroy_workqueue(di->monitor_wqueue); -+ power_supply_unregister(&di->bat); -+ -+ return 0; -+} -+ -+#ifdef CONFIG_PM -+ -+static int ds2760_battery_suspend(struct platform_device *pdev, -+ pm_message_t state) -+{ -+ struct ds2760_device_info *di = platform_get_drvdata(pdev); -+ -+ di->charge_status = POWER_SUPPLY_STATUS_UNKNOWN; -+ -+ return 0; -+} -+ -+static int ds2760_battery_resume(struct platform_device *pdev) -+{ -+ struct ds2760_device_info *di = platform_get_drvdata(pdev); -+ -+ di->charge_status = POWER_SUPPLY_STATUS_UNKNOWN; -+ power_supply_changed(&di->bat); -+ -+ cancel_delayed_work(&di->monitor_work); -+ queue_delayed_work(di->monitor_wqueue, &di->monitor_work, HZ); -+ -+ return 0; -+} -+ -+#else -+ -+#define ds2760_battery_suspend NULL -+#define ds2760_battery_resume NULL -+ -+#endif /* CONFIG_PM */ -+ -+static struct platform_driver ds2760_battery_driver = { -+ .driver = { -+ .name = "ds2760-battery", -+ }, -+ .probe = ds2760_battery_probe, -+ .remove = ds2760_battery_remove, -+ .suspend = ds2760_battery_suspend, -+ .resume = ds2760_battery_resume, -+}; -+ -+static int __init ds2760_battery_init(void) -+{ -+ return platform_driver_register(&ds2760_battery_driver); -+} -+ -+static void __exit ds2760_battery_exit(void) -+{ -+ platform_driver_unregister(&ds2760_battery_driver); -+ return; -+} -+ -+module_init(ds2760_battery_init); -+module_exit(ds2760_battery_exit); -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Szabolcs Gyurko , " -+ "Matt Reimer , " -+ "Anton Vorontsov "); -+MODULE_DESCRIPTION("ds2760 battery driver"); -Index: linux-2.6.22/drivers/power/Kconfig -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/drivers/power/Kconfig 2007-08-23 12:13:52.000000000 +0200 -@@ -0,0 +1,70 @@ -+menuconfig POWER_SUPPLY -+ tristate "Power supply class support" -+ help -+ Say Y here to enable power supply class support. This allows -+ power supply (batteries, AC, USB) monitoring by userspace -+ via sysfs and uevent (if available) and/or APM kernel interface -+ (if selected below). -+ -+if POWER_SUPPLY -+ -+config POWER_SUPPLY_DEBUG -+ bool "Power supply debug" -+ help -+ Say Y here to enable debugging messages for power supply class -+ and drivers. -+ -+config PDA_POWER -+ tristate "Generic PDA/phone power driver" -+ help -+ Say Y here to enable generic power driver for PDAs and phones with -+ one or two external power supplies (AC/USB) connected to main and -+ backup batteries, and optional builtin charger. -+ -+config APM_POWER -+ tristate "APM emulation for class batteries" -+ depends on APM_EMULATION -+ help -+ Say Y here to enable support APM status emulation using -+ battery class devices. -+ -+config BATTERY_DS2760 -+ tristate "DS2760 battery driver (HP iPAQ & others)" -+ select W1 -+ select W1_SLAVE_DS2760 -+ help -+ Say Y here to enable support for batteries with ds2760 chip. -+ -+config BATTERY_PMU -+ tristate "Apple PMU battery" -+ depends on ADB_PMU -+ help -+ Say Y here to expose battery information on Apple machines -+ through the generic battery class. -+ -+config BATTERY_OLPC -+ tristate "One Laptop Per Child battery" -+ depends on X86_32 -+ help -+ Say Y to enable support for the battery on the OLPC laptop. -+ -+# drivers below are not in battery2-2.6 tree -+ -+config ADC_BATTERY -+ tristate "Generic ADC battery driver" -+ depends on ADC && POWER_SUPPLY -+ help -+ Say Y here to enable support for battery monitoring using generic ADC device. -+ -+config IPAQ_MICRO_BATTERY -+ tristate "HP iPAQ Micro ASIC battery driver" -+ depends on IPAQ_MICRO && POWER_SUPPLY -+ help -+ Choose this option if you want to monitor battery status on -+ Compaq/HP iPAQ h3100 h3600 -+ -+config MCP_UCB1x00_SIMPAD_BATTERY -+ tristate "SIMpad Battery Reading Support" -+ depends on MCP_UCB1x00 && POWER_SUPPLY -+ -+endif # POWER_SUPPLY -Index: linux-2.6.22/drivers/power/Makefile -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/drivers/power/Makefile 2007-08-23 12:13:52.000000000 +0200 -@@ -0,0 +1,28 @@ -+power_supply-objs := power_supply_core.o -+ -+ifeq ($(CONFIG_SYSFS),y) -+power_supply-objs += power_supply_sysfs.o -+endif -+ -+ifeq ($(CONFIG_LEDS_TRIGGERS),y) -+power_supply-objs += power_supply_leds.o -+endif -+ -+ifeq ($(CONFIG_POWER_SUPPLY_DEBUG),y) -+EXTRA_CFLAGS += -DDEBUG -+endif -+ -+obj-$(CONFIG_POWER_SUPPLY) += power_supply.o -+ -+obj-$(CONFIG_PDA_POWER) += pda_power.o -+obj-$(CONFIG_APM_POWER) += apm_power.o -+ -+obj-$(CONFIG_BATTERY_DS2760) += ds2760_battery.o -+obj-$(CONFIG_BATTERY_PMU) += pmu_battery.o -+obj-$(CONFIG_BATTERY_OLPC) += olpc_battery.o -+ -+# drivers below are not in battery2-2.6 tree -+ -+obj-$(CONFIG_ADC_BATTERY) += adc_battery.o -+obj-$(CONFIG_IPAQ_MICRO_BATTERY) += micro_battery.o -+obj-$(CONFIG_MCP_UCB1x00_SIMPAD_BATTERY) += simpad-battery.o -Index: linux-2.6.22/drivers/power/micro_battery.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/drivers/power/micro_battery.c 2007-08-23 12:25:20.000000000 +0200 -@@ -0,0 +1,257 @@ -+/* -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ * -+ * h3600 atmel micro companion support, battery subdevice -+ * based on previous kernel 2.4 version -+ * Author : Alessandro Gardich -+ * -+ */ -+ -+ -+#include -+#include -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+ -+#include -+#include -+ -+#include -+ -+#define BATT_PERIOD 10*HZ -+ -+#define H3600_BATT_STATUS_HIGH 0x01 -+#define H3600_BATT_STATUS_LOW 0x02 -+#define H3600_BATT_STATUS_CRITICAL 0x04 -+#define H3600_BATT_STATUS_CHARGING 0x08 -+#define H3600_BATT_STATUS_CHARGEMAIN 0x10 -+#define H3600_BATT_STATUS_DEAD 0x20 /* Battery will not charge */ -+#define H3600_BATT_STATUS_NOTINSTALLED 0x20 /* For expansion pack batteries */ -+#define H3600_BATT_STATUS_FULL 0x40 /* Battery fully charged (and connected to AC) */ -+#define H3600_BATT_STATUS_NOBATTERY 0x80 -+#define H3600_BATT_STATUS_UNKNOWN 0xff -+ -+ -+//static struct power_supply_dev *micro_battery; -+ -+static micro_private_t *p_micro; -+ -+struct timer_list batt_timer; -+ -+struct { -+ int ac; -+ int update_time; -+ int chemistry; -+ int voltage; -+ int temperature; -+ int flag; -+} micro_battery; -+ -+static void micro_battery_receive (int len, unsigned char *data) { -+ if (0) { -+ printk(KERN_ERR "h3600_battery - AC = %02x\n", data[0]); -+ printk(KERN_ERR "h3600_battery - BAT1 chemistry = %02x\n", data[1]); -+ printk(KERN_ERR "h3600_battery - BAT1 voltage = %d %02x%02x\n", (data[3]<<8)+data[2], data[2], data[3]); -+ printk(KERN_ERR "h3600_battery - BAT1 status = %02x\n", data[4]); -+ } -+ -+ micro_battery.ac = data[0]; -+ micro_battery.chemistry = data[1]; -+ micro_battery.voltage = ((((unsigned short)data[3]<<8)+data[2]) * 5000L ) * 1000 / 1024; -+ micro_battery.flag = data[4]; -+ -+ if (len == 9) { -+ if (0) { -+ printk(KERN_ERR "h3600_battery - BAT2 chemistry = %02x\n", data[5]); -+ printk(KERN_ERR "h3600_battery - BAT2 voltage = %d %02x%02x\n", (data[7]<<8)+data[6], data[6], data[7]); -+ printk(KERN_ERR "h3600_battery - BAT2 status = %02x\n", data[8]); -+ } -+ } -+} -+ -+static void micro_temperature_receive (int len, unsigned char *data) { -+ micro_battery.temperature = ((unsigned short)data[1]<<8)+data[0]; -+} -+ -+void h3600_battery_read_status(unsigned long data) { -+ -+ if (++data % 2) -+ h3600_micro_tx_msg(0x09,0,NULL); -+ else -+ h3600_micro_tx_msg(0x06,0,NULL); -+ -+ batt_timer.expires += BATT_PERIOD; -+ batt_timer.data = data; -+ -+ add_timer(&batt_timer); -+} -+ -+int get_capacity(struct power_supply *b) { -+ switch (micro_battery.flag) { -+ case H3600_BATT_STATUS_HIGH : return 100; break; -+ case H3600_BATT_STATUS_LOW : return 50; break; -+ case H3600_BATT_STATUS_CRITICAL : return 5; break; -+ default: break; -+ } -+ return 0; -+} -+ -+int get_status(struct power_supply *b) { -+ -+ if (micro_battery.flag == H3600_BATT_STATUS_UNKNOWN) -+ return POWER_SUPPLY_STATUS_UNKNOWN; -+ -+ if (micro_battery.flag & H3600_BATT_STATUS_FULL) -+ return POWER_SUPPLY_STATUS_FULL; -+ -+ if ((micro_battery.flag & H3600_BATT_STATUS_CHARGING) || -+ (micro_battery.flag & H3600_BATT_STATUS_CHARGEMAIN)) -+ return POWER_SUPPLY_STATUS_CHARGING; -+ -+ return POWER_SUPPLY_STATUS_DISCHARGING; -+} -+ -+static int micro_batt_get_property(struct power_supply *b, -+ enum power_supply_property psp, -+ union power_supply_propval *val) -+{ -+ switch (psp) { -+ case POWER_SUPPLY_PROP_STATUS: -+ val->intval = get_status(b); -+ break; -+ case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: -+ val->intval = 4700000; -+ break; -+ case POWER_SUPPLY_PROP_CAPACITY: -+ val->intval = get_capacity(b); -+ break; -+ case POWER_SUPPLY_PROP_TEMP: -+ val->intval = micro_battery.temperature; -+ break; -+ case POWER_SUPPLY_PROP_VOLTAGE_NOW: -+ val->intval = micro_battery.voltage; -+ break; -+ default: -+ return -EINVAL; -+ }; -+ -+ return 0; -+} -+ -+static enum power_supply_property micro_batt_props[] = { -+ POWER_SUPPLY_PROP_STATUS, -+ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, -+ POWER_SUPPLY_PROP_CAPACITY, -+ POWER_SUPPLY_PROP_TEMP, -+ POWER_SUPPLY_PROP_VOLTAGE_NOW, -+}; -+ -+static struct power_supply h3600_battery = { -+ .name = "main-battery", -+ .properties = micro_batt_props, -+ .num_properties = ARRAY_SIZE(micro_batt_props), -+ .get_property = micro_batt_get_property, -+ .use_for_apm = 1, -+}; -+ -+static int micro_batt_probe (struct platform_device *pdev) -+{ -+ if (1) printk(KERN_ERR "micro battery probe : begin\n"); -+ -+ power_supply_register(&pdev->dev, &h3600_battery); -+ -+ { /*--- callback ---*/ -+ p_micro = platform_get_drvdata(pdev); -+ spin_lock(p_micro->lock); -+ p_micro->h_batt = micro_battery_receive; -+ p_micro->h_temp = micro_temperature_receive; -+ spin_unlock(p_micro->lock); -+ } -+ -+ { /*--- timer ---*/ -+ init_timer(&batt_timer); -+ batt_timer.expires = jiffies + BATT_PERIOD; -+ batt_timer.data = 0; -+ batt_timer.function = h3600_battery_read_status; -+ -+ add_timer(&batt_timer); -+ } -+ -+ if (1) printk(KERN_ERR "micro battery probe : end\n"); -+ return 0; -+} -+ -+static int micro_batt_remove (struct platform_device *pdev) -+{ -+ power_supply_unregister(&h3600_battery); -+ { /*--- callback ---*/ -+ init_timer(&batt_timer); -+ p_micro->h_batt = NULL; -+ p_micro->h_temp = NULL; -+ spin_unlock(p_micro->lock); -+ } -+ { /*--- timer ---*/ -+ del_timer_sync(&batt_timer); -+ } -+ return 0; -+} -+ -+static int micro_batt_suspend ( struct platform_device *pdev, pm_message_t state) -+{ -+ { /*--- timer ---*/ -+ del_timer(&batt_timer); -+ } -+ return 0; -+} -+ -+static int micro_batt_resume ( struct platform_device *pdev) -+{ -+ { /*--- timer ---*/ -+ add_timer(&batt_timer); -+ } -+ return 0; -+} -+ -+struct platform_driver micro_batt_device_driver = { -+ .driver = { -+ .name = "h3600-micro-battery", -+ }, -+ .probe = micro_batt_probe, -+ .remove = micro_batt_remove, -+ .suspend = micro_batt_suspend, -+ .resume = micro_batt_resume, -+}; -+ -+static int micro_batt_init (void) -+{ -+ return platform_driver_register(µ_batt_device_driver); -+} -+ -+static void micro_batt_cleanup (void) -+{ -+ platform_driver_unregister (µ_batt_device_driver); -+} -+ -+module_init (micro_batt_init); -+module_exit (micro_batt_cleanup); -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("gremlin.it"); -+MODULE_DESCRIPTION("driver for iPAQ Atmel micro battery"); -+ -+ -Index: linux-2.6.22/drivers/power/olpc_battery.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/drivers/power/olpc_battery.c 2007-08-23 12:13:52.000000000 +0200 -@@ -0,0 +1,302 @@ -+/* -+ * Battery driver for One Laptop Per Child board. -+ * -+ * Copyright © 2006 David Woodhouse -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#define wBAT_VOLTAGE 0xf900 /* *9.76/32, mV */ -+#define wBAT_CURRENT 0xf902 /* *15.625/120, mA */ -+#define wBAT_TEMP 0xf906 /* *256/1000, °C */ -+#define wAMB_TEMP 0xf908 /* *256/1000, °C */ -+#define SOC 0xf910 /* percentage */ -+#define sMBAT_STATUS 0xfaa4 -+#define sBAT_PRESENT 1 -+#define sBAT_FULL 2 -+#define sBAT_DESTROY 4 /* what is this exactly? */ -+#define sBAT_LOW 32 -+#define sBAT_DISCHG 64 -+#define sMCHARGE_STATUS 0xfaa5 -+#define sBAT_CHARGE 1 -+#define sBAT_OVERTEMP 4 -+#define sBAT_NiMH 8 -+#define sPOWER_FLAG 0xfa40 -+#define ADAPTER_IN 1 -+ -+/********************************************************************* -+ * EC locking and access -+ *********************************************************************/ -+ -+static int lock_ec(void) -+{ -+ unsigned long timeo = jiffies + HZ / 20; -+ -+ while (1) { -+ unsigned char lock = inb(0x6c) & 0x80; -+ if (!lock) -+ return 0; -+ if (time_after(jiffies, timeo)) { -+ printk(KERN_ERR "olpc_battery: failed to lock EC for " -+ "battery access\n"); -+ return 1; -+ } -+ yield(); -+ } -+} -+ -+static void unlock_ec(void) -+{ -+ outb(0xff, 0x6c); -+ return; -+} -+ -+static unsigned char read_ec_byte(unsigned short adr) -+{ -+ outb(adr >> 8, 0x381); -+ outb(adr, 0x382); -+ return inb(0x383); -+} -+ -+static unsigned short read_ec_word(unsigned short adr) -+{ -+ return (read_ec_byte(adr) << 8) | read_ec_byte(adr + 1); -+} -+ -+/********************************************************************* -+ * Power -+ *********************************************************************/ -+ -+static int olpc_ac_get_prop(struct power_supply *psy, -+ enum power_supply_property psp, -+ union power_supply_propval *val) -+{ -+ int ret = 0; -+ -+ if (lock_ec()) -+ return -EIO; -+ -+ switch (psp) { -+ case POWER_SUPPLY_PROP_ONLINE: -+ if (!(read_ec_byte(sMBAT_STATUS) & sBAT_PRESENT)) { -+ ret = -ENODEV; -+ goto out; -+ } -+ val->intval = !!(read_ec_byte(sPOWER_FLAG) & ADAPTER_IN); -+ break; -+ default: -+ ret = -EINVAL; -+ break; -+ } -+out: -+ unlock_ec(); -+ return ret; -+} -+ -+static enum power_supply_property olpc_ac_props[] = { -+ POWER_SUPPLY_PROP_ONLINE, -+}; -+ -+static struct power_supply olpc_ac = { -+ .name = "olpc-ac", -+ .type = POWER_SUPPLY_TYPE_MAINS, -+ .properties = olpc_ac_props, -+ .num_properties = ARRAY_SIZE(olpc_ac_props), -+ .get_property = olpc_ac_get_prop, -+}; -+ -+/********************************************************************* -+ * Battery properties -+ *********************************************************************/ -+ -+static int olpc_bat_get_property(struct power_supply *psy, -+ enum power_supply_property psp, -+ union power_supply_propval *val) -+{ -+ int ret = 0; -+ -+ if (lock_ec()) -+ return -EIO; -+ -+ switch (psp) { -+ case POWER_SUPPLY_PROP_STATUS: -+ { -+ int status = POWER_SUPPLY_STATUS_UNKNOWN; -+ -+ val->intval = read_ec_byte(sMBAT_STATUS); -+ -+ if (!(val->intval & sBAT_PRESENT)) { -+ ret = -ENODEV; -+ goto out; -+ } -+ -+ if (val->intval & sBAT_DISCHG) -+ status = POWER_SUPPLY_STATUS_DISCHARGING; -+ else if (val->intval & sBAT_FULL) -+ status = POWER_SUPPLY_STATUS_FULL; -+ -+ val->intval = read_ec_byte(sMCHARGE_STATUS); -+ if (val->intval & sBAT_CHARGE) -+ status = POWER_SUPPLY_STATUS_CHARGING; -+ -+ val->intval = status; -+ break; -+ } -+ case POWER_SUPPLY_PROP_PRESENT: -+ val->intval = !!(read_ec_byte(sMBAT_STATUS) & sBAT_PRESENT); -+ break; -+ case POWER_SUPPLY_PROP_HEALTH: -+ val->intval = read_ec_byte(sMCHARGE_STATUS); -+ if (val->intval & sBAT_OVERTEMP) -+ val->intval = POWER_SUPPLY_HEALTH_OVERHEAT; -+ else -+ val->intval = POWER_SUPPLY_HEALTH_GOOD; -+ break; -+ case POWER_SUPPLY_PROP_TECHNOLOGY: -+ val->intval = read_ec_byte(sMCHARGE_STATUS); -+ if (val->intval & sBAT_NiMH) -+ val->intval = POWER_SUPPLY_TECHNOLOGY_NIMH; -+ else -+ val->intval = POWER_SUPPLY_TECHNOLOGY_UNKNOWN; -+ break; -+ case POWER_SUPPLY_PROP_VOLTAGE_AVG: -+ val->intval = read_ec_byte(wBAT_VOLTAGE) * 9760L / 32; -+ break; -+ case POWER_SUPPLY_PROP_CURRENT_AVG: -+ val->intval = read_ec_byte(wBAT_CURRENT) * 15625L / 120; -+ break; -+ case POWER_SUPPLY_PROP_CAPACITY: -+ val->intval = read_ec_byte(SOC); -+ break; -+ case POWER_SUPPLY_PROP_CAPACITY_LEVEL: -+ val->intval = read_ec_byte(sMBAT_STATUS); -+ if (val->intval & sBAT_FULL) -+ val->intval = POWER_SUPPLY_CAPACITY_LEVEL_FULL; -+ else if (val->intval & sBAT_LOW) -+ val->intval = POWER_SUPPLY_CAPACITY_LEVEL_LOW; -+ else -+ val->intval = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; -+ break; -+ case POWER_SUPPLY_PROP_TEMP: -+ val->intval = read_ec_byte(wBAT_TEMP) * 256 / 100; -+ break; -+ case POWER_SUPPLY_PROP_TEMP_AMBIENT: -+ val->intval = read_ec_byte(wAMB_TEMP) * 256 / 100; -+ break; -+ default: -+ ret = -EINVAL; -+ break; -+ } -+ -+out: -+ unlock_ec(); -+ return ret; -+} -+ -+static enum power_supply_property olpc_bat_props[] = { -+ POWER_SUPPLY_PROP_STATUS, -+ POWER_SUPPLY_PROP_PRESENT, -+ POWER_SUPPLY_PROP_HEALTH, -+ POWER_SUPPLY_PROP_TECHNOLOGY, -+ POWER_SUPPLY_PROP_VOLTAGE_AVG, -+ POWER_SUPPLY_PROP_CURRENT_AVG, -+ POWER_SUPPLY_PROP_CAPACITY, -+ POWER_SUPPLY_PROP_CAPACITY_LEVEL, -+ POWER_SUPPLY_PROP_TEMP, -+ POWER_SUPPLY_PROP_TEMP_AMBIENT, -+}; -+ -+/********************************************************************* -+ * Initialisation -+ *********************************************************************/ -+ -+static struct platform_device *bat_pdev; -+ -+static struct power_supply olpc_bat = { -+ .properties = olpc_bat_props, -+ .num_properties = ARRAY_SIZE(olpc_bat_props), -+ .get_property = olpc_bat_get_property, -+ .use_for_apm = 1, -+}; -+ -+static int __init olpc_bat_init(void) -+{ -+ int ret = 0; -+ unsigned short tmp; -+ -+ if (!request_region(0x380, 4, "olpc-battery")) { -+ ret = -EIO; -+ goto region_failed; -+ } -+ -+ if (lock_ec()) { -+ ret = -EIO; -+ goto lock_failed; -+ } -+ -+ tmp = read_ec_word(0xfe92); -+ unlock_ec(); -+ -+ if (tmp != 0x380) { -+ /* Doesn't look like OLPC EC */ -+ ret = -ENODEV; -+ goto not_olpc_ec; -+ } -+ -+ bat_pdev = platform_device_register_simple("olpc-battery", 0, NULL, 0); -+ if (IS_ERR(bat_pdev)) { -+ ret = PTR_ERR(bat_pdev); -+ goto pdev_failed; -+ } -+ -+ ret = power_supply_register(&bat_pdev->dev, &olpc_ac); -+ if (ret) -+ goto ac_failed; -+ -+ olpc_bat.name = bat_pdev->name; -+ -+ ret = power_supply_register(&bat_pdev->dev, &olpc_bat); -+ if (ret) -+ goto battery_failed; -+ -+ goto success; -+ -+battery_failed: -+ power_supply_unregister(&olpc_ac); -+ac_failed: -+ platform_device_unregister(bat_pdev); -+pdev_failed: -+not_olpc_ec: -+lock_failed: -+ release_region(0x380, 4); -+region_failed: -+success: -+ return ret; -+} -+ -+static void __exit olpc_bat_exit(void) -+{ -+ power_supply_unregister(&olpc_bat); -+ power_supply_unregister(&olpc_ac); -+ platform_device_unregister(bat_pdev); -+ release_region(0x380, 4); -+ return; -+} -+ -+module_init(olpc_bat_init); -+module_exit(olpc_bat_exit); -+ -+MODULE_AUTHOR("David Woodhouse "); -+MODULE_LICENSE("GPL"); -+MODULE_DESCRIPTION("Battery driver for One Laptop Per Child " -+ "($100 laptop) board."); -Index: linux-2.6.22/drivers/power/pda_power.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/drivers/power/pda_power.c 2007-08-23 12:13:52.000000000 +0200 -@@ -0,0 +1,263 @@ -+/* -+ * Common power driver for PDAs and phones with one or two external -+ * power supplies (AC/USB) connected to main and backup batteries, -+ * and optional builtin charger. -+ * -+ * Copyright 2007 Anton Vorontsov -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+static inline unsigned int get_irq_flags(struct resource *res) -+{ -+ unsigned int flags = IRQF_DISABLED | IRQF_SHARED; -+ -+ flags |= res->flags & IRQF_TRIGGER_MASK; -+ -+ return flags; -+} -+ -+static struct device *dev; -+static struct pda_power_pdata *pdata; -+static struct resource *ac_irq, *usb_irq; -+static struct timer_list charger_timer; -+static struct timer_list supply_timer; -+ -+static int pda_power_get_property(struct power_supply *psy, -+ enum power_supply_property psp, -+ union power_supply_propval *val) -+{ -+ switch (psp) { -+ case POWER_SUPPLY_PROP_ONLINE: -+ if (psy->type == POWER_SUPPLY_TYPE_MAINS) -+ val->intval = pdata->is_ac_online ? -+ pdata->is_ac_online() : 0; -+ else -+ val->intval = pdata->is_usb_online ? -+ pdata->is_usb_online() : 0; -+ break; -+ default: -+ return -EINVAL; -+ } -+ return 0; -+} -+ -+static enum power_supply_property pda_power_props[] = { -+ POWER_SUPPLY_PROP_ONLINE, -+}; -+ -+static char *pda_power_supplied_to[] = { -+ "main-battery", -+ "backup-battery", -+}; -+ -+static struct power_supply pda_power_supplies[] = { -+ { -+ .name = "ac", -+ .type = POWER_SUPPLY_TYPE_MAINS, -+ .supplied_to = pda_power_supplied_to, -+ .num_supplicants = ARRAY_SIZE(pda_power_supplied_to), -+ .properties = pda_power_props, -+ .num_properties = ARRAY_SIZE(pda_power_props), -+ .get_property = pda_power_get_property, -+ }, -+ { -+ .name = "usb", -+ .type = POWER_SUPPLY_TYPE_USB, -+ .supplied_to = pda_power_supplied_to, -+ .num_supplicants = ARRAY_SIZE(pda_power_supplied_to), -+ .properties = pda_power_props, -+ .num_properties = ARRAY_SIZE(pda_power_props), -+ .get_property = pda_power_get_property, -+ }, -+}; -+ -+static void update_charger(void) -+{ -+ if (!pdata->set_charge) -+ return; -+ -+ if (pdata->is_ac_online && pdata->is_ac_online()) { -+ dev_dbg(dev, "charger on (AC)\n"); -+ pdata->set_charge(PDA_POWER_CHARGE_AC); -+ } -+ else if (pdata->is_usb_online && pdata->is_usb_online()) { -+ dev_dbg(dev, "charger on (USB)\n"); -+ pdata->set_charge(PDA_POWER_CHARGE_USB); -+ } -+ else { -+ dev_dbg(dev, "charger off\n"); -+ pdata->set_charge(0); -+ } -+ -+ return; -+} -+ -+static void supply_timer_func(unsigned long irq) -+{ -+ if (ac_irq && irq == ac_irq->start) -+ power_supply_changed(&pda_power_supplies[0]); -+ else if (usb_irq && irq == usb_irq->start) -+ power_supply_changed(&pda_power_supplies[1]); -+ return; -+} -+ -+static void charger_timer_func(unsigned long irq) -+{ -+ update_charger(); -+ -+ /* Okay, charger set. Now wait a bit before notifying supplicants, -+ * charge power should stabilize. */ -+ supply_timer.data = irq; -+ mod_timer(&supply_timer, -+ jiffies + msecs_to_jiffies(pdata->wait_for_charger)); -+ return; -+} -+ -+static irqreturn_t power_changed_isr(int irq, void *unused) -+{ -+ /* Wait a bit before reading ac/usb line status and setting charger, -+ * because ac/usb status readings may lag from irq. */ -+ charger_timer.data = irq; -+ mod_timer(&charger_timer, -+ jiffies + msecs_to_jiffies(pdata->wait_for_status)); -+ return IRQ_HANDLED; -+} -+ -+static int pda_power_probe(struct platform_device *pdev) -+{ -+ int ret = 0; -+ -+ dev = &pdev->dev; -+ -+ if (pdev->id != -1) { -+ dev_err(dev, "it's meaningless to register several " -+ "pda_powers, use id = -1\n"); -+ ret = -EINVAL; -+ goto wrongid; -+ } -+ -+ pdata = pdev->dev.platform_data; -+ -+ update_charger(); -+ -+ if (!pdata->wait_for_status) -+ pdata->wait_for_status = 500; -+ -+ if (!pdata->wait_for_charger) -+ pdata->wait_for_charger = 500; -+ -+ setup_timer(&charger_timer, charger_timer_func, 0); -+ setup_timer(&supply_timer, supply_timer_func, 0); -+ -+ ac_irq = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "ac"); -+ usb_irq = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "usb"); -+ if (!ac_irq && !usb_irq) { -+ dev_err(dev, "no ac/usb irq specified\n"); -+ ret = -ENODEV; -+ goto noirqs; -+ } -+ -+ if (pdata->supplied_to) { -+ pda_power_supplies[0].supplied_to = pdata->supplied_to; -+ pda_power_supplies[1].supplied_to = pdata->supplied_to; -+ pda_power_supplies[0].num_supplicants = pdata->num_supplicants; -+ pda_power_supplies[1].num_supplicants = pdata->num_supplicants; -+ } -+ -+ ret = power_supply_register(&pdev->dev, &pda_power_supplies[0]); -+ if (ret) { -+ dev_err(dev, "failed to register %s power supply\n", -+ pda_power_supplies[0].name); -+ goto supply0_failed; -+ } -+ -+ ret = power_supply_register(&pdev->dev, &pda_power_supplies[1]); -+ if (ret) { -+ dev_err(dev, "failed to register %s power supply\n", -+ pda_power_supplies[1].name); -+ goto supply1_failed; -+ } -+ -+ if (ac_irq) { -+ ret = request_irq(ac_irq->start, power_changed_isr, -+ get_irq_flags(ac_irq), ac_irq->name, -+ &pda_power_supplies[0]); -+ if (ret) { -+ dev_err(dev, "request ac irq failed\n"); -+ goto ac_irq_failed; -+ } -+ } -+ -+ if (usb_irq) { -+ ret = request_irq(usb_irq->start, power_changed_isr, -+ get_irq_flags(usb_irq), usb_irq->name, -+ &pda_power_supplies[1]); -+ if (ret) { -+ dev_err(dev, "request usb irq failed\n"); -+ goto usb_irq_failed; -+ } -+ } -+ -+ goto success; -+ -+usb_irq_failed: -+ if (ac_irq) -+ free_irq(ac_irq->start, &pda_power_supplies[0]); -+ac_irq_failed: -+ power_supply_unregister(&pda_power_supplies[1]); -+supply1_failed: -+ power_supply_unregister(&pda_power_supplies[0]); -+supply0_failed: -+noirqs: -+wrongid: -+success: -+ return ret; -+} -+ -+static int pda_power_remove(struct platform_device *pdev) -+{ -+ if (usb_irq) -+ free_irq(usb_irq->start, &pda_power_supplies[1]); -+ if (ac_irq) -+ free_irq(ac_irq->start, &pda_power_supplies[0]); -+ del_timer_sync(&charger_timer); -+ del_timer_sync(&supply_timer); -+ power_supply_unregister(&pda_power_supplies[1]); -+ power_supply_unregister(&pda_power_supplies[0]); -+ return 0; -+} -+ -+static struct platform_driver pda_power_pdrv = { -+ .driver = { -+ .name = "pda-power", -+ }, -+ .probe = pda_power_probe, -+ .remove = pda_power_remove, -+}; -+ -+static int __init pda_power_init(void) -+{ -+ return platform_driver_register(&pda_power_pdrv); -+} -+ -+static void __exit pda_power_exit(void) -+{ -+ platform_driver_unregister(&pda_power_pdrv); -+ return; -+} -+ -+module_init(pda_power_init); -+module_exit(pda_power_exit); -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Anton Vorontsov "); -Index: linux-2.6.22/drivers/power/pmu_battery.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/drivers/power/pmu_battery.c 2007-08-23 12:13:52.000000000 +0200 -@@ -0,0 +1,215 @@ -+/* -+ * Battery class driver for Apple PMU -+ * -+ * Copyright © 2006 David Woodhouse -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 as -+ * published by the Free Software Foundation. -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+ -+static struct pmu_battery_dev { -+ struct power_supply bat; -+ struct pmu_battery_info *pbi; -+ char name[16]; -+ int propval; -+} *pbats[PMU_MAX_BATTERIES]; -+ -+#define to_pmu_battery_dev(x) container_of(x, struct pmu_battery_dev, bat) -+ -+/********************************************************************* -+ * Power -+ *********************************************************************/ -+ -+static int pmu_get_ac_prop(struct power_supply *psy, -+ enum power_supply_property psp, -+ union power_supply_propval *val) -+{ -+ switch (psp) { -+ case POWER_SUPPLY_PROP_ONLINE: -+ val->intval = (!!(pmu_power_flags & PMU_PWR_AC_PRESENT)) || -+ (pmu_battery_count == 0); -+ break; -+ default: -+ return -EINVAL; -+ } -+ -+ return 0; -+} -+ -+static enum power_supply_property pmu_ac_props[] = { -+ POWER_SUPPLY_PROP_ONLINE, -+}; -+ -+static struct power_supply pmu_ac = { -+ .name = "pmu-ac", -+ .type = POWER_SUPPLY_TYPE_MAINS, -+ .properties = pmu_ac_props, -+ .num_properties = ARRAY_SIZE(pmu_ac_props), -+ .get_property = pmu_get_ac_prop, -+}; -+ -+/********************************************************************* -+ * Battery properties -+ *********************************************************************/ -+ -+static char *pmu_batt_types[] = { -+ "Smart", "Comet", "Hooper", "Unknown" -+}; -+ -+static char *pmu_bat_get_model_name(struct pmu_battery_info *pbi) -+{ -+ switch (pbi->flags & PMU_BATT_TYPE_MASK) { -+ case PMU_BATT_TYPE_SMART: -+ return pmu_batt_types[0]; -+ case PMU_BATT_TYPE_COMET: -+ return pmu_batt_types[1]; -+ case PMU_BATT_TYPE_HOOPER: -+ return pmu_batt_types[2]; -+ default: break; -+ } -+ return pmu_batt_types[3]; -+} -+ -+static int pmu_bat_get_property(struct power_supply *psy, -+ enum power_supply_property psp, -+ union power_supply_propval *val) -+{ -+ struct pmu_battery_dev *pbat = to_pmu_battery_dev(psy); -+ struct pmu_battery_info *pbi = pbat->pbi; -+ -+ switch (psp) { -+ case POWER_SUPPLY_PROP_STATUS: -+ if (pbi->flags & PMU_BATT_CHARGING) -+ val->intval = POWER_SUPPLY_STATUS_CHARGING; -+ else -+ val->intval = POWER_SUPPLY_STATUS_DISCHARGING; -+ break; -+ case POWER_SUPPLY_PROP_PRESENT: -+ val->intval = !!(pbi->flags & PMU_BATT_PRESENT); -+ break; -+ case POWER_SUPPLY_PROP_MODEL_NAME: -+ val->strval = pmu_bat_get_model_name(pbi); -+ break; -+ case POWER_SUPPLY_PROP_ENERGY_AVG: -+ val->intval = pbi->charge * 1000; /* mWh -> µWh */ -+ break; -+ case POWER_SUPPLY_PROP_ENERGY_FULL: -+ val->intval = pbi->max_charge * 1000; /* mWh -> µWh */ -+ break; -+ case POWER_SUPPLY_PROP_CURRENT_AVG: -+ val->intval = pbi->amperage * 1000; /* mA -> µA */ -+ break; -+ case POWER_SUPPLY_PROP_VOLTAGE_AVG: -+ val->intval = pbi->voltage * 1000; /* mV -> µV */ -+ break; -+ case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: -+ val->intval = pbi->time_remaining; -+ break; -+ default: -+ return -EINVAL; -+ } -+ -+ return 0; -+} -+ -+static enum power_supply_property pmu_bat_props[] = { -+ POWER_SUPPLY_PROP_STATUS, -+ POWER_SUPPLY_PROP_PRESENT, -+ POWER_SUPPLY_PROP_MODEL_NAME, -+ POWER_SUPPLY_PROP_ENERGY_AVG, -+ POWER_SUPPLY_PROP_ENERGY_FULL, -+ POWER_SUPPLY_PROP_CURRENT_AVG, -+ POWER_SUPPLY_PROP_VOLTAGE_AVG, -+ POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, -+}; -+ -+/********************************************************************* -+ * Initialisation -+ *********************************************************************/ -+ -+static struct platform_device *bat_pdev; -+ -+static int __init pmu_bat_init(void) -+{ -+ int ret; -+ int i; -+ -+ bat_pdev = platform_device_register_simple("pmu-battery", -+ 0, NULL, 0); -+ if (IS_ERR(bat_pdev)) { -+ ret = PTR_ERR(bat_pdev); -+ goto pdev_register_failed; -+ } -+ -+ ret = power_supply_register(&bat_pdev->dev, &pmu_ac); -+ if (ret) -+ goto ac_register_failed; -+ -+ for (i = 0; i < pmu_battery_count; i++) { -+ struct pmu_battery_dev *pbat = kzalloc(sizeof(*pbat), -+ GFP_KERNEL); -+ if (!pbat) -+ break; -+ -+ sprintf(pbat->name, "PMU battery %d", i); -+ pbat->bat.name = pbat->name; -+ pbat->bat.properties = pmu_bat_props; -+ pbat->bat.num_properties = ARRAY_SIZE(pmu_bat_props); -+ pbat->bat.get_property = pmu_bat_get_property; -+ pbat->pbi = &pmu_batteries[i]; -+ -+ ret = power_supply_register(&bat_pdev->dev, &pbat->bat); -+ if (ret) { -+ kfree(pbat); -+ goto battery_register_failed; -+ } -+ pbats[i] = pbat; -+ } -+ -+ goto success; -+ -+battery_register_failed: -+ while (i--) { -+ if (!pbats[i]) -+ continue; -+ power_supply_unregister(&pbats[i]->bat); -+ kfree(pbats[i]); -+ } -+ power_supply_unregister(&pmu_ac); -+ac_register_failed: -+ platform_device_unregister(bat_pdev); -+pdev_register_failed: -+success: -+ return ret; -+} -+ -+static void __exit pmu_bat_exit(void) -+{ -+ int i; -+ -+ for (i = 0; i < PMU_MAX_BATTERIES; i++) { -+ if (!pbats[i]) -+ continue; -+ power_supply_unregister(&pbats[i]->bat); -+ kfree(pbats[i]); -+ } -+ power_supply_unregister(&pmu_ac); -+ platform_device_unregister(bat_pdev); -+ -+ return; -+} -+ -+module_init(pmu_bat_init); -+module_exit(pmu_bat_exit); -+ -+MODULE_AUTHOR("David Woodhouse "); -+MODULE_LICENSE("GPL"); -+MODULE_DESCRIPTION("PMU battery driver"); -Index: linux-2.6.22/drivers/power/power_supply_core.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/drivers/power/power_supply_core.c 2007-08-23 12:13:52.000000000 +0200 -@@ -0,0 +1,168 @@ -+/* -+ * Universal power supply monitor class -+ * -+ * Copyright (c) 2007 Anton Vorontsov -+ * Copyright (c) 2004 Szabolcs Gyurko -+ * Copyright (c) 2003 Ian Molton -+ * -+ * Modified: 2004, Oct Szabolcs Gyurko -+ * -+ * You may use this code as per GPL version 2 -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include "power_supply.h" -+ -+struct class *power_supply_class; -+ -+static void power_supply_changed_work(struct work_struct *work) -+{ -+ struct power_supply *psy = container_of(work, struct power_supply, -+ changed_work); -+ int i; -+ -+ dev_dbg(psy->dev, "%s\n", __FUNCTION__); -+ -+ for (i = 0; i < psy->num_supplicants; i++) { -+ struct device *dev; -+ -+ down(&power_supply_class->sem); -+ list_for_each_entry(dev, &power_supply_class->devices, node) { -+ struct power_supply *pst = dev_get_drvdata(dev); -+ -+ if (!strcmp(psy->supplied_to[i], pst->name)) { -+ if (pst->external_power_changed) -+ pst->external_power_changed(pst); -+ } -+ } -+ up(&power_supply_class->sem); -+ } -+ -+ power_supply_update_leds(psy); -+ -+ kobject_uevent(&psy->dev->kobj, KOBJ_CHANGE); -+ -+ return; -+} -+ -+void power_supply_changed(struct power_supply *psy) -+{ -+ dev_dbg(psy->dev, "%s\n", __FUNCTION__); -+ -+ schedule_work(&psy->changed_work); -+ -+ return; -+} -+ -+int power_supply_am_i_supplied(struct power_supply *psy) -+{ -+ union power_supply_propval ret = {0,}; -+ struct device *dev; -+ -+ down(&power_supply_class->sem); -+ list_for_each_entry(dev, &power_supply_class->devices, node) { -+ struct power_supply *epsy = dev_get_drvdata(dev); -+ int i; -+ -+ for (i = 0; i < epsy->num_supplicants; i++) { -+ if (!strcmp(epsy->supplied_to[i], psy->name)) { -+ if (epsy->get_property(epsy, -+ POWER_SUPPLY_PROP_ONLINE, &ret)) -+ continue; -+ if (ret.intval) -+ goto out; -+ } -+ } -+ } -+out: -+ up(&power_supply_class->sem); -+ -+ dev_dbg(psy->dev, "%s %d\n", __FUNCTION__, ret.intval); -+ -+ return ret.intval; -+} -+ -+int power_supply_register(struct device *parent, struct power_supply *psy) -+{ -+ int rc = 0; -+ -+ psy->dev = device_create(power_supply_class, parent, 0, -+ "%s", psy->name); -+ if (IS_ERR(psy->dev)) { -+ rc = PTR_ERR(psy->dev); -+ goto dev_create_failed; -+ } -+ -+ dev_set_drvdata(psy->dev, psy); -+ -+ INIT_WORK(&psy->changed_work, power_supply_changed_work); -+ -+ rc = power_supply_create_attrs(psy); -+ if (rc) -+ goto create_attrs_failed; -+ -+ rc = power_supply_create_triggers(psy); -+ if (rc) -+ goto create_triggers_failed; -+ -+ power_supply_changed(psy); -+ -+ goto success; -+ -+create_triggers_failed: -+ power_supply_remove_attrs(psy); -+create_attrs_failed: -+ device_unregister(psy->dev); -+dev_create_failed: -+success: -+ return rc; -+} -+ -+void power_supply_unregister(struct power_supply *psy) -+{ -+ flush_scheduled_work(); -+ power_supply_remove_triggers(psy); -+ power_supply_remove_attrs(psy); -+ device_unregister(psy->dev); -+ return; -+} -+ -+static int __init power_supply_class_init(void) -+{ -+ power_supply_class = class_create(THIS_MODULE, "power_supply"); -+ -+ if (IS_ERR(power_supply_class)) -+ return PTR_ERR(power_supply_class); -+ -+ power_supply_class->dev_uevent = power_supply_uevent; -+ -+ return 0; -+} -+ -+static void __exit power_supply_class_exit(void) -+{ -+ class_destroy(power_supply_class); -+ return; -+} -+ -+EXPORT_SYMBOL_GPL(power_supply_changed); -+EXPORT_SYMBOL_GPL(power_supply_am_i_supplied); -+EXPORT_SYMBOL_GPL(power_supply_register); -+EXPORT_SYMBOL_GPL(power_supply_unregister); -+ -+/* exported for the APM Power driver, APM emulation */ -+EXPORT_SYMBOL_GPL(power_supply_class); -+ -+subsys_initcall(power_supply_class_init); -+module_exit(power_supply_class_exit); -+ -+MODULE_DESCRIPTION("Universal power supply monitor class"); -+MODULE_AUTHOR("Ian Molton , " -+ "Szabolcs Gyurko, " -+ "Anton Vorontsov "); -+MODULE_LICENSE("GPL"); -Index: linux-2.6.22/drivers/power/power_supply.h -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/drivers/power/power_supply.h 2007-08-23 12:13:52.000000000 +0200 -@@ -0,0 +1,42 @@ -+/* -+ * Functions private to power supply class -+ * -+ * Copyright (c) 2007 Anton Vorontsov -+ * Copyright (c) 2004 Szabolcs Gyurko -+ * Copyright (c) 2003 Ian Molton -+ * -+ * Modified: 2004, Oct Szabolcs Gyurko -+ * -+ * You may use this code as per GPL version 2 -+ */ -+ -+#ifdef CONFIG_SYSFS -+ -+extern int power_supply_create_attrs(struct power_supply *psy); -+extern void power_supply_remove_attrs(struct power_supply *psy); -+extern int power_supply_uevent(struct device *dev, char **envp, int num_envp, -+ char *buffer, int buffer_size); -+ -+#else -+ -+static inline int power_supply_create_attrs(struct power_supply *psy) -+{ return 0; } -+static inline void power_supply_remove_attrs(struct power_supply *psy) {} -+#define power_supply_uevent NULL -+ -+#endif /* CONFIG_SYSFS */ -+ -+#ifdef CONFIG_LEDS_TRIGGERS -+ -+extern void power_supply_update_leds(struct power_supply *psy); -+extern int power_supply_create_triggers(struct power_supply *psy); -+extern void power_supply_remove_triggers(struct power_supply *psy); -+ -+#else -+ -+static inline void power_supply_update_leds(struct power_supply *psy) {} -+static inline int power_supply_create_triggers(struct power_supply *psy) -+{ return 0; } -+static inline void power_supply_remove_triggers(struct power_supply *psy) {} -+ -+#endif /* CONFIG_LEDS_TRIGGERS */ -Index: linux-2.6.22/drivers/power/power_supply_leds.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/drivers/power/power_supply_leds.c 2007-08-23 12:13:52.000000000 +0200 -@@ -0,0 +1,188 @@ -+/* -+ * LEDs triggers for power supply class -+ * -+ * Copyright (c) 2007 Anton Vorontsov -+ * Copyright (c) 2004 Szabolcs Gyurko -+ * Copyright (c) 2003 Ian Molton -+ * -+ * Modified: 2004, Oct Szabolcs Gyurko -+ * -+ * You may use this code as per GPL version 2 -+ */ -+ -+#include -+ -+/* If we have hwtimer trigger, then use it to blink charging LED */ -+ -+#if defined(CONFIG_LEDS_TRIGGER_HWTIMER) || \ -+ (defined(CONFIG_BATTERY_MODULE) && \ -+ defined(CONFIG_LEDS_TRIGGER_HWTIMER_MODULE)) -+ #define led_trigger_register_charging led_trigger_register_hwtimer -+ #define led_trigger_unregister_charging led_trigger_unregister_hwtimer -+#else -+ #define led_trigger_register_charging led_trigger_register_simple -+ #define led_trigger_unregister_charging led_trigger_unregister_simple -+#endif -+ -+/* Battery specific LEDs triggers. */ -+ -+static void power_supply_update_bat_leds(struct power_supply *psy) -+{ -+ union power_supply_propval status; -+ -+ if (psy->get_property(psy, POWER_SUPPLY_PROP_STATUS, &status)) -+ return; -+ -+ dev_dbg(psy->dev, "%s %d\n", __FUNCTION__, status.intval); -+ -+ switch(status.intval) { -+ case POWER_SUPPLY_STATUS_FULL: -+ led_trigger_event(psy->charging_full_trig, LED_FULL); -+ led_trigger_event(psy->charging_trig, LED_OFF); -+ led_trigger_event(psy->full_trig, LED_FULL); -+ break; -+ case POWER_SUPPLY_STATUS_CHARGING: -+ led_trigger_event(psy->charging_full_trig, LED_FULL); -+ led_trigger_event(psy->charging_trig, LED_FULL); -+ led_trigger_event(psy->full_trig, LED_OFF); -+ break; -+ default: -+ led_trigger_event(psy->charging_full_trig, LED_OFF); -+ led_trigger_event(psy->charging_trig, LED_OFF); -+ led_trigger_event(psy->full_trig, LED_OFF); -+ break; -+ } -+ -+ return; -+} -+ -+static int power_supply_create_bat_triggers(struct power_supply *psy) -+{ -+ int rc = 0; -+ -+ psy->charging_full_trig_name = kmalloc(strlen(psy->name) + -+ sizeof("-charging-or-full"), GFP_KERNEL); -+ if (!psy->charging_full_trig_name) -+ goto charging_full_failed; -+ -+ psy->charging_trig_name = kmalloc(strlen(psy->name) + -+ sizeof("-charging"), GFP_KERNEL); -+ if (!psy->charging_trig_name) -+ goto charging_failed; -+ -+ psy->full_trig_name = kmalloc(strlen(psy->name) + -+ sizeof("-full"), GFP_KERNEL); -+ if (!psy->full_trig_name) -+ goto full_failed; -+ -+ strcpy(psy->charging_full_trig_name, psy->name); -+ strcat(psy->charging_full_trig_name, "-charging-or-full"); -+ strcpy(psy->charging_trig_name, psy->name); -+ strcat(psy->charging_trig_name, "-charging"); -+ strcpy(psy->full_trig_name, psy->name); -+ strcat(psy->full_trig_name, "-full"); -+ -+ led_trigger_register_simple(psy->charging_full_trig_name, -+ &psy->charging_full_trig); -+ led_trigger_register_charging(psy->charging_trig_name, -+ &psy->charging_trig); -+ led_trigger_register_simple(psy->full_trig_name, -+ &psy->full_trig); -+ -+ goto success; -+ -+full_failed: -+ kfree(psy->charging_trig_name); -+charging_failed: -+ kfree(psy->charging_full_trig_name); -+charging_full_failed: -+ rc = -ENOMEM; -+success: -+ return rc; -+} -+ -+static void power_supply_remove_bat_triggers(struct power_supply *psy) -+{ -+ led_trigger_unregister_simple(psy->charging_full_trig); -+ led_trigger_unregister_charging(psy->charging_trig); -+ led_trigger_unregister_simple(psy->full_trig); -+ kfree(psy->full_trig_name); -+ kfree(psy->charging_trig_name); -+ kfree(psy->charging_full_trig_name); -+ return; -+} -+ -+/* Generated power specific LEDs triggers. */ -+ -+static void power_supply_update_gen_leds(struct power_supply *psy) -+{ -+ union power_supply_propval online; -+ -+ if (psy->get_property(psy, POWER_SUPPLY_PROP_ONLINE, &online)) -+ return; -+ -+ dev_dbg(psy->dev, "%s %d\n", __FUNCTION__, online.intval); -+ -+ if (online.intval) -+ led_trigger_event(psy->online_trig, LED_FULL); -+ else -+ led_trigger_event(psy->online_trig, LED_OFF); -+ -+ return; -+} -+ -+static int power_supply_create_gen_triggers(struct power_supply *psy) -+{ -+ int rc = 0; -+ -+ psy->online_trig_name = kmalloc(strlen(psy->name) + sizeof("-online"), -+ GFP_KERNEL); -+ if (!psy->online_trig_name) -+ goto online_failed; -+ -+ strcpy(psy->online_trig_name, psy->name); -+ strcat(psy->online_trig_name, "-online"); -+ -+ led_trigger_register_simple(psy->online_trig_name, &psy->online_trig); -+ -+ goto success; -+ -+online_failed: -+ rc = -ENOMEM; -+success: -+ return rc; -+} -+ -+static void power_supply_remove_gen_triggers(struct power_supply *psy) -+{ -+ led_trigger_unregister_simple(psy->online_trig); -+ kfree(psy->online_trig_name); -+ return; -+} -+ -+/* Choice what triggers to create&update. */ -+ -+void power_supply_update_leds(struct power_supply *psy) -+{ -+ if (psy->type == POWER_SUPPLY_TYPE_BATTERY) -+ power_supply_update_bat_leds(psy); -+ else -+ power_supply_update_gen_leds(psy); -+ return; -+} -+ -+int power_supply_create_triggers(struct power_supply *psy) -+{ -+ if (psy->type == POWER_SUPPLY_TYPE_BATTERY) -+ return power_supply_create_bat_triggers(psy); -+ return power_supply_create_gen_triggers(psy); -+} -+ -+void power_supply_remove_triggers(struct power_supply *psy) -+{ -+ if (psy->type == POWER_SUPPLY_TYPE_BATTERY) -+ power_supply_remove_bat_triggers(psy); -+ else -+ power_supply_remove_gen_triggers(psy); -+ return; -+} -Index: linux-2.6.22/drivers/power/power_supply_sysfs.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/drivers/power/power_supply_sysfs.c 2007-08-23 12:13:52.000000000 +0200 -@@ -0,0 +1,289 @@ -+/* -+ * Sysfs interface for the universal power supply monitor class -+ * -+ * Copyright © 2007 David Woodhouse -+ * Copyright (c) 2007 Anton Vorontsov -+ * Copyright (c) 2004 Szabolcs Gyurko -+ * Copyright (c) 2003 Ian Molton -+ * -+ * Modified: 2004, Oct Szabolcs Gyurko -+ * -+ * You may use this code as per GPL version 2 -+ */ -+ -+#include -+#include -+ -+/* -+ * This is because the name "current" breaks the device attr macro. -+ * The "current" word resolvs to "(get_current())" so instead of -+ * "current" "(get_current())" appears in the sysfs. -+ * -+ * The source of this definition is the device.h which calls __ATTR -+ * macro in sysfs.h which calls the __stringify macro. -+ * -+ * Only modification that the name is not tried to be resolved -+ * (as a macro let's say). -+ */ -+ -+#define POWER_SUPPLY_ATTR(_name) \ -+{ \ -+ .attr = { .name = #_name, .mode = 0444, .owner = THIS_MODULE }, \ -+ .show = power_supply_show_property, \ -+ .store = NULL, \ -+} -+ -+static struct device_attribute power_supply_attrs[]; -+ -+static ssize_t power_supply_show_property(struct device *dev, -+ struct device_attribute *attr, -+ char *buf) { -+ static char *status_text[] = { -+ "Unknown", "Charging", "Discharging", "Not charging", "Full" -+ }; -+ static char *health_text[] = { -+ "Unknown", "Good", "Overheat", "Dead" -+ }; -+ static char *technology_text[] = { -+ "Unknown", "NiMH", "Li-ion", "Li-poly" -+ }; -+ static char *capacity_level_text[] = { -+ "Unknown", "Critical", "Low", "Normal", "High", "Full" -+ }; -+ ssize_t ret; -+ struct power_supply *psy = dev_get_drvdata(dev); -+ const ptrdiff_t off = attr - power_supply_attrs; -+ union power_supply_propval value; -+ -+ ret = psy->get_property(psy, off, &value); -+ -+ if (ret < 0) { -+ dev_err(dev, "driver failed to report `%s' property\n", -+ attr->attr.name); -+ return ret; -+ } -+ -+ if (off == POWER_SUPPLY_PROP_STATUS) -+ return sprintf(buf, "%s\n", status_text[value.intval]); -+ else if (off == POWER_SUPPLY_PROP_HEALTH) -+ return sprintf(buf, "%s\n", health_text[value.intval]); -+ else if (off == POWER_SUPPLY_PROP_TECHNOLOGY) -+ return sprintf(buf, "%s\n", technology_text[value.intval]); -+ else if (off == POWER_SUPPLY_PROP_CAPACITY_LEVEL) -+ return sprintf(buf, "%s\n", -+ capacity_level_text[value.intval]); -+ else if (off == POWER_SUPPLY_PROP_MODEL_NAME) -+ return sprintf(buf, "%s\n", value.strval); -+ -+ return sprintf(buf, "%d\n", value.intval); -+} -+ -+/* Must be in the same order as POWER_SUPPLY_PROP_* */ -+static struct device_attribute power_supply_attrs[] = { -+ /* Properties of type `int' */ -+ POWER_SUPPLY_ATTR(status), -+ POWER_SUPPLY_ATTR(health), -+ POWER_SUPPLY_ATTR(present), -+ POWER_SUPPLY_ATTR(online), -+ POWER_SUPPLY_ATTR(technology), -+ POWER_SUPPLY_ATTR(voltage_max_design), -+ POWER_SUPPLY_ATTR(voltage_min_design), -+ POWER_SUPPLY_ATTR(voltage_now), -+ POWER_SUPPLY_ATTR(voltage_avg), -+ POWER_SUPPLY_ATTR(current_now), -+ POWER_SUPPLY_ATTR(current_avg), -+ POWER_SUPPLY_ATTR(charge_full_design), -+ POWER_SUPPLY_ATTR(charge_empty_design), -+ POWER_SUPPLY_ATTR(charge_full), -+ POWER_SUPPLY_ATTR(charge_empty), -+ POWER_SUPPLY_ATTR(charge_now), -+ POWER_SUPPLY_ATTR(charge_avg), -+ POWER_SUPPLY_ATTR(energy_full_design), -+ POWER_SUPPLY_ATTR(energy_empty_design), -+ POWER_SUPPLY_ATTR(energy_full), -+ POWER_SUPPLY_ATTR(energy_empty), -+ POWER_SUPPLY_ATTR(energy_now), -+ POWER_SUPPLY_ATTR(energy_avg), -+ POWER_SUPPLY_ATTR(capacity), -+ POWER_SUPPLY_ATTR(capacity_level), -+ POWER_SUPPLY_ATTR(temp), -+ POWER_SUPPLY_ATTR(temp_ambient), -+ POWER_SUPPLY_ATTR(time_to_empty_now), -+ POWER_SUPPLY_ATTR(time_to_empty_avg), -+ POWER_SUPPLY_ATTR(time_to_full_now), -+ POWER_SUPPLY_ATTR(time_to_full_avg), -+ /* Properties of type `const char *' */ -+ POWER_SUPPLY_ATTR(model_name), -+}; -+ -+static ssize_t power_supply_show_static_attrs(struct device *dev, -+ struct device_attribute *attr, -+ char *buf) { -+ static char *type_text[] = { "Battery", "UPS", "Mains", "USB" }; -+ struct power_supply *psy = dev_get_drvdata(dev); -+ -+ return sprintf(buf, "%s\n", type_text[psy->type]); -+} -+ -+static struct device_attribute power_supply_static_attrs[] = { -+ __ATTR(type, 0444, power_supply_show_static_attrs, NULL), -+}; -+ -+int power_supply_create_attrs(struct power_supply *psy) -+{ -+ int rc = 0; -+ int i, j; -+ -+ for (i = 0; i < ARRAY_SIZE(power_supply_static_attrs); i++) { -+ rc = device_create_file(psy->dev, -+ &power_supply_static_attrs[i]); -+ if (rc) -+ goto statics_failed; -+ } -+ -+ for (j = 0; j < psy->num_properties; j++) { -+ rc = device_create_file(psy->dev, -+ &power_supply_attrs[psy->properties[j]]); -+ if (rc) -+ goto dynamics_failed; -+ } -+ -+ goto succeed; -+ -+dynamics_failed: -+ while (j--) -+ device_remove_file(psy->dev, -+ &power_supply_attrs[psy->properties[j]]); -+statics_failed: -+ while (i--) -+ device_remove_file(psy->dev, -+ &power_supply_static_attrs[psy->properties[i]]); -+succeed: -+ return rc; -+} -+ -+void power_supply_remove_attrs(struct power_supply *psy) -+{ -+ int i; -+ -+ for (i = 0; i < ARRAY_SIZE(power_supply_static_attrs); i++) -+ device_remove_file(psy->dev, -+ &power_supply_static_attrs[i]); -+ -+ for (i = 0; i < psy->num_properties; i++) -+ device_remove_file(psy->dev, -+ &power_supply_attrs[psy->properties[i]]); -+ -+ return; -+} -+ -+static char *kstruprdup(const char *str, gfp_t gfp) -+{ -+ char *ret, *ustr; -+ -+ ustr = ret = kmalloc(strlen(str) + 1, gfp); -+ -+ if (!ret) -+ return NULL; -+ -+ while (*str) -+ *ustr++ = toupper(*str++); -+ -+ *ustr = 0; -+ -+ return ret; -+} -+ -+int power_supply_uevent(struct device *dev, char **envp, int num_envp, -+ char *buffer, int buffer_size) -+{ -+ struct power_supply *psy = dev_get_drvdata(dev); -+ int i = 0, length = 0, ret = 0, j; -+ char *prop_buf; -+ char *attrname; -+ -+ dev_dbg(dev, "uevent\n"); -+ -+ if (!psy) { -+ dev_dbg(dev, "No power supply yet\n"); -+ return ret; -+ } -+ -+ dev_dbg(dev, "POWER_SUPPLY_NAME=%s\n", psy->name); -+ -+ ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, -+ &length, "POWER_SUPPLY_NAME=%s", psy->name); -+ if (ret) -+ return ret; -+ -+ prop_buf = (char *)get_zeroed_page(GFP_KERNEL); -+ if (!prop_buf) -+ return -ENOMEM; -+ -+ for (j = 0; j < ARRAY_SIZE(power_supply_static_attrs); j++) { -+ struct device_attribute *attr; -+ char *line; -+ -+ attr = &power_supply_static_attrs[j]; -+ -+ ret = power_supply_show_static_attrs(dev, attr, prop_buf); -+ if (ret < 0) -+ goto out; -+ -+ line = strchr(prop_buf, '\n'); -+ if (line) -+ *line = 0; -+ -+ attrname = kstruprdup(attr->attr.name, GFP_KERNEL); -+ if (!attrname) { -+ ret = -ENOMEM; -+ goto out; -+ } -+ -+ dev_dbg(dev, "Static prop %s=%s\n", attrname, prop_buf); -+ -+ ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, -+ &length, "POWER_SUPPLY_%s=%s", -+ attrname, prop_buf); -+ kfree(attrname); -+ if (ret) -+ goto out; -+ } -+ -+ dev_dbg(dev, "%zd dynamic props\n", psy->num_properties); -+ -+ for (j = 0; j < psy->num_properties; j++) { -+ struct device_attribute *attr; -+ char *line; -+ -+ attr = &power_supply_attrs[psy->properties[j]]; -+ -+ ret = power_supply_show_property(dev, attr, prop_buf); -+ if (ret < 0) -+ goto out; -+ -+ line = strchr(prop_buf, '\n'); -+ if (line) -+ *line = 0; -+ -+ attrname = kstruprdup(attr->attr.name, GFP_KERNEL); -+ if (!attrname) { -+ ret = -ENOMEM; -+ goto out; -+ } -+ -+ dev_dbg(dev, "prop %s=%s\n", attrname, prop_buf); -+ -+ ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, -+ &length, "POWER_SUPPLY_%s=%s", -+ attrname, prop_buf); -+ kfree(attrname); -+ if (ret) -+ goto out; -+ } -+ -+out: -+ free_page((unsigned long)prop_buf); -+ -+ return ret; -+} -Index: linux-2.6.22/drivers/power/simpad-battery.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/drivers/power/simpad-battery.c 2007-08-23 12:13:52.000000000 +0200 -@@ -0,0 +1,242 @@ -+/* -+ * linux/drivers/misc/simpad-battery.c -+ * -+ * Copyright (C) 2005 Holger Hans Peter Freyther -+ * Copyright (C) 2001 Juergen Messerer -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License as published by -+ * the Free Software Foundation; either version 2 of the License. -+ * -+ * Read the Battery Level through the UCB1x00 chip. T-Sinuspad is -+ * unsupported for now. -+ * -+ */ -+ -+#include -+#include -+#include "ucb1x00.h" -+ -+ -+/* -+ * Conversion from AD -> mV -+ * 7.5V = 1023 7.3313mV/Digit -+ * -+ * 400 Units == 9.7V -+ * a = ADC value -+ * 21 = ADC error -+ * 12600 = Divident to get 2*7.3242 -+ * 860 = Divider to get 2*7.3242 -+ * 170 = Voltagedrop over -+ */ -+#define CALIBRATE_BATTERY(a) ((((a + 21)*12600)/860) + 170) -+ -+/* -+ * We have two types of batteries a small and a large one -+ * To get the right value we to distinguish between those two -+ * 450 Units == 15 V -+ */ -+#define CALIBRATE_SUPPLY(a) (((a) * 1500) / 45) -+#define MIN_SUPPLY 12000 /* Less then 12V means no powersupply */ -+ -+/* -+ * Charging Current -+ * if value is >= 50 then charging is on -+ */ -+#define CALIBRATE_CHARGING(a) (((a)* 1000)/(152/4))) -+ -+struct simpad_battery_t { -+ struct battery battery; -+ struct ucb1x00* ucb; -+ -+ /* -+ * Variables for the values to one time support -+ * T-Sinuspad as well -+ */ -+ int min_voltage; -+ int min_current; -+ int min_charge; -+ -+ int max_voltage; -+ int max_current; -+ int max_charge; -+ -+ int min_supply; -+ int charging_led_label; -+ int charging_max_label; -+ int batt_full; -+ int batt_low; -+ int batt_critical; -+ int batt_empty; -+}; -+ -+static int simpad_get_min_voltage(struct battery* _battery ) -+{ -+ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; -+ return battery->min_voltage; -+} -+ -+static int simpad_get_min_current(struct battery* _battery) -+{ -+ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; -+ return battery->min_current; -+} -+ -+static int simpad_get_min_charge(struct battery* _battery) -+{ -+ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; -+ return battery->min_charge; -+} -+ -+static int simpad_get_max_voltage(struct battery* _battery) -+{ -+ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; -+ return battery->max_voltage; -+} -+ -+static int simpad_get_max_current(struct battery* _battery) -+{ -+ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; -+ return battery->max_current; -+} -+ -+static int simpad_get_max_charge(struct battery* _battery) -+{ -+ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; -+ return battery->max_charge; -+} -+ -+static int simpad_get_temp(struct battery* _battery) -+{ -+ return 0; -+} -+ -+static int simpad_get_voltage(struct battery* _battery) -+{ -+ int val; -+ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; -+ -+ -+ ucb1x00_adc_enable(battery->ucb); -+ val = ucb1x00_adc_read(battery->ucb, UCB_ADC_INP_AD1, UCB_NOSYNC); -+ ucb1x00_adc_disable(battery->ucb); -+ -+ return CALIBRATE_BATTERY(val); -+} -+ -+static int simpad_get_current(struct battery* _battery) -+{ -+ int val; -+ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; -+ -+ ucb1x00_adc_enable(battery->ucb); -+ val = ucb1x00_adc_read(battery->ucb, UCB_ADC_INP_AD3, UCB_NOSYNC); -+ ucb1x00_adc_disable(battery->ucb); -+ -+ return val; -+} -+ -+static int simpad_get_charge(struct battery* _battery) -+{ -+ int val; -+ struct simpad_battery_t* battery = (struct simpad_battery_t*)_battery; -+ -+ ucb1x00_adc_enable(battery->ucb); -+ val = ucb1x00_adc_read(battery->ucb, UCB_ADC_INP_AD2, UCB_NOSYNC); -+ ucb1x00_adc_disable(battery->ucb); -+ -+ return CALIBRATE_SUPPLY(val); -+ -+} -+ -+static int simpad_get_status(struct battery* _battery) -+{ -+ struct simpad_battery_t* battery = (struct simpad_battery_t*)(_battery); -+ int vcharger = simpad_get_voltage(_battery); -+ int icharger = simpad_get_current(_battery); -+ -+ int status = BATTERY_STATUS_UNKNOWN; -+ if(icharger > battery->charging_led_label) -+ status = BATTERY_STATUS_CHARGING; -+ else if(vcharger > battery->min_supply) -+ status = BATTERY_STATUS_NOT_CHARGING; -+ else -+ status = BATTERY_STATUS_DISCHARGING; -+ -+ return status; -+} -+ -+static struct simpad_battery_t simpad_battery = { -+ .battery = { -+ .get_min_voltage = simpad_get_min_voltage, -+ .get_min_current = simpad_get_min_current, -+ .get_min_charge = simpad_get_min_charge, -+ .get_max_voltage = simpad_get_max_voltage, -+ .get_max_current = simpad_get_max_current, -+ .get_max_charge = simpad_get_max_charge, -+ .get_temp = simpad_get_temp, -+ .get_voltage = simpad_get_voltage, -+ .get_current = simpad_get_current, -+ .get_charge = simpad_get_charge, -+ .get_status = simpad_get_status, -+ }, -+ .min_voltage = 0, -+ .min_current = 0, -+ .min_charge = 0, -+ .max_voltage = 0, -+ .max_current = 0, -+ .max_charge = 0, -+ -+ .min_supply = 1200, -+ .charging_led_label = 18, -+ .charging_max_label = 265, -+ .batt_full = 8300, -+ .batt_low = 7300, -+ .batt_critical = 6800, -+ .batt_empty = 6500, -+}; -+ -+ -+ -+/* -+ * UCB glue code -+ */ -+static int ucb1x00_battery_add(struct class_device *dev) -+{ -+ struct ucb1x00 *ucb = classdev_to_ucb1x00(dev); -+ simpad_battery.ucb = ucb; -+ -+ battery_class_register(&simpad_battery.battery); -+ -+ return 0; -+} -+ -+static void ucb1x00_battery_remove(struct class_device *dev) -+{ -+ return battery_class_unregister(&simpad_battery.battery); -+} -+ -+ -+static struct ucb1x00_class_interface ucb1x00_battery_interface = { -+ .interface = { -+ .add = ucb1x00_battery_add, -+ .remove = ucb1x00_battery_remove, -+ }, -+}; -+ -+ -+static int __init battery_register(void) -+{ -+ return ucb1x00_register_interface(&ucb1x00_battery_interface); -+} -+ -+static void __exit battery_unregister(void) -+{ -+ ucb1x00_unregister_interface(&ucb1x00_battery_interface); -+} -+ -+module_init(battery_register); -+module_exit(battery_unregister); -+ -+MODULE_AUTHOR("Holger Hans Peter Freyther"); -+MODULE_LICENSE("GPL"); -Index: linux-2.6.22/arch/arm/Kconfig -=================================================================== ---- linux-2.6.22.orig/arch/arm/Kconfig 2007-08-23 12:17:42.000000000 +0200 -+++ linux-2.6.22/arch/arm/Kconfig 2007-08-23 12:22:28.000000000 +0200 -@@ -1016,6 +1016,8 @@ - - source "drivers/w1/Kconfig" - -+source "drivers/power/Kconfig" -+ - source "drivers/hwmon/Kconfig" - - #source "drivers/l3/Kconfig" -Index: linux-2.6.22/drivers/Kconfig -=================================================================== ---- linux-2.6.22.orig/drivers/Kconfig 2007-08-23 12:21:27.000000000 +0200 -+++ linux-2.6.22/drivers/Kconfig 2007-08-23 12:22:03.000000000 +0200 -@@ -54,6 +54,8 @@ - - source "drivers/w1/Kconfig" - -+source "drivers/power/Kconfig" -+ - source "drivers/hwmon/Kconfig" - - source "drivers/mfd/Kconfig" -Index: linux-2.6.22/drivers/Makefile -=================================================================== ---- linux-2.6.22.orig/drivers/Makefile 2007-08-23 12:33:58.000000000 +0200 -+++ linux-2.6.22/drivers/Makefile 2007-08-23 12:34:34.000000000 +0200 -@@ -61,6 +61,7 @@ - obj-$(CONFIG_RTC_LIB) += rtc/ - obj-y += i2c/ - obj-$(CONFIG_W1) += w1/ -+obj-$(CONFIG_POWER_SUPPLY) += power/ - obj-$(CONFIG_HWMON) += hwmon/ - obj-$(CONFIG_PHONE) += telephony/ - obj-$(CONFIG_MD) += md/ -Index: linux-2.6.22/include/linux/power_supply.h -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/include/linux/power_supply.h 2007-08-23 12:37:10.000000000 +0200 -@@ -0,0 +1,175 @@ -+/* -+ * Universal power supply monitor class -+ * -+ * Copyright (c) 2007 Anton Vorontsov -+ * Copyright (c) 2004 Szabolcs Gyurko -+ * Copyright (c) 2003 Ian Molton -+ * -+ * Modified: 2004, Oct Szabolcs Gyurko -+ * -+ * You may use this code as per GPL version 2 -+ */ -+ -+#ifndef __LINUX_POWER_SUPPLY_H__ -+#define __LINUX_POWER_SUPPLY_H__ -+ -+#include -+#include -+#include -+ -+/* -+ * All voltages, currents, charges, energies, time and temperatures in uV, -+ * uA, uAh, uWh, seconds and tenths of degree Celsius unless otherwise -+ * stated. It's driver's job to convert its raw values to units in which -+ * this class operates. -+ */ -+ -+/* -+ * For systems where the charger determines the maximum battery capacity -+ * the min and max fields should be used to present these values to user -+ * space. Unused/unknown fields will not appear in sysfs. -+ */ -+ -+enum { -+ POWER_SUPPLY_STATUS_UNKNOWN = 0, -+ POWER_SUPPLY_STATUS_CHARGING, -+ POWER_SUPPLY_STATUS_DISCHARGING, -+ POWER_SUPPLY_STATUS_NOT_CHARGING, -+ POWER_SUPPLY_STATUS_FULL, -+}; -+ -+enum { -+ POWER_SUPPLY_HEALTH_UNKNOWN = 0, -+ POWER_SUPPLY_HEALTH_GOOD, -+ POWER_SUPPLY_HEALTH_OVERHEAT, -+ POWER_SUPPLY_HEALTH_DEAD, -+}; -+ -+enum { -+ POWER_SUPPLY_TECHNOLOGY_UNKNOWN = 0, -+ POWER_SUPPLY_TECHNOLOGY_NIMH, -+ POWER_SUPPLY_TECHNOLOGY_LION, -+ POWER_SUPPLY_TECHNOLOGY_LIPO, -+}; -+ -+enum { -+ POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN = 0, -+ POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL, -+ POWER_SUPPLY_CAPACITY_LEVEL_LOW, -+ POWER_SUPPLY_CAPACITY_LEVEL_NORMAL, -+ POWER_SUPPLY_CAPACITY_LEVEL_HIGH, -+ POWER_SUPPLY_CAPACITY_LEVEL_FULL, -+}; -+ -+enum power_supply_property { -+ /* Properties of type `int' */ -+ POWER_SUPPLY_PROP_STATUS = 0, -+ POWER_SUPPLY_PROP_HEALTH, -+ POWER_SUPPLY_PROP_PRESENT, -+ POWER_SUPPLY_PROP_ONLINE, -+ POWER_SUPPLY_PROP_TECHNOLOGY, -+ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, -+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, -+ POWER_SUPPLY_PROP_VOLTAGE_NOW, -+ POWER_SUPPLY_PROP_VOLTAGE_AVG, -+ POWER_SUPPLY_PROP_CURRENT_NOW, -+ POWER_SUPPLY_PROP_CURRENT_AVG, -+ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, -+ POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN, -+ POWER_SUPPLY_PROP_CHARGE_FULL, -+ POWER_SUPPLY_PROP_CHARGE_EMPTY, -+ POWER_SUPPLY_PROP_CHARGE_NOW, -+ POWER_SUPPLY_PROP_CHARGE_AVG, -+ POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, -+ POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN, -+ POWER_SUPPLY_PROP_ENERGY_FULL, -+ POWER_SUPPLY_PROP_ENERGY_EMPTY, -+ POWER_SUPPLY_PROP_ENERGY_NOW, -+ POWER_SUPPLY_PROP_ENERGY_AVG, -+ POWER_SUPPLY_PROP_CAPACITY, /* in percents! */ -+ POWER_SUPPLY_PROP_CAPACITY_LEVEL, -+ POWER_SUPPLY_PROP_TEMP, -+ POWER_SUPPLY_PROP_TEMP_AMBIENT, -+ POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, -+ POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, -+ POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, -+ POWER_SUPPLY_PROP_TIME_TO_FULL_AVG, -+ /* Properties of type `const char *' */ -+ POWER_SUPPLY_PROP_MODEL_NAME, -+}; -+ -+enum power_supply_type { -+ POWER_SUPPLY_TYPE_BATTERY = 0, -+ POWER_SUPPLY_TYPE_UPS, -+ POWER_SUPPLY_TYPE_MAINS, -+ POWER_SUPPLY_TYPE_USB, -+}; -+ -+union power_supply_propval { -+ int intval; -+ const char *strval; -+}; -+ -+struct power_supply { -+ const char *name; -+ enum power_supply_type type; -+ enum power_supply_property *properties; -+ size_t num_properties; -+ -+ char **supplied_to; -+ size_t num_supplicants; -+ -+ int (*get_property)(struct power_supply *psy, -+ enum power_supply_property psp, -+ union power_supply_propval *val); -+ void (*external_power_changed)(struct power_supply *psy); -+ -+ /* For APM emulation, think legacy userspace. */ -+ int use_for_apm; -+ -+ /* private */ -+ struct device *dev; -+ struct work_struct changed_work; -+ -+#ifdef CONFIG_LEDS_TRIGGERS -+ struct led_trigger *charging_full_trig; -+ char *charging_full_trig_name; -+ struct led_trigger *charging_trig; -+ char *charging_trig_name; -+ struct led_trigger *full_trig; -+ char *full_trig_name; -+ struct led_trigger *online_trig; -+ char *online_trig_name; -+#endif -+}; -+ -+/* -+ * This is recommended structure to specify static power supply parameters. -+ * Generic one, parametrizable for different power supplies. Power supply -+ * class itself does not use it, but that's what implementing most platform -+ * drivers, should try reuse for consistency. -+ */ -+ -+struct power_supply_info { -+ const char *name; -+ int technology; -+ int voltage_max_design; -+ int voltage_min_design; -+ int charge_full_design; -+ int charge_empty_design; -+ int energy_full_design; -+ int energy_empty_design; -+ int use_for_apm; -+}; -+ -+extern void power_supply_changed(struct power_supply *psy); -+extern int power_supply_am_i_supplied(struct power_supply *psy); -+ -+extern int power_supply_register(struct device *parent, -+ struct power_supply *psy); -+extern void power_supply_unregister(struct power_supply *psy); -+ -+/* For APM emulation, think legacy userspace. */ -+extern struct class *power_supply_class; -+ -+#endif /* __LINUX_POWER_SUPPLY_H__ */ diff --git a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/pxa27x_overlay-r8.patch b/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/pxa27x_overlay-r8.patch deleted file mode 100644 index 693ad2045..000000000 --- a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/pxa27x_overlay-r8.patch +++ /dev/null @@ -1,2427 +0,0 @@ - drivers/video/Kconfig | 18 - drivers/video/Makefile | 1 - drivers/video/pxafb.c | 305 +++++-- - drivers/video/pxafb.h | 65 + - drivers/video/pxafb_overlay.c | 1525 ++++++++++++++++++++++++++++++++++++ - include/asm-arm/arch-pxa/pxa-regs.h | 111 ++ - 6 files changed, 1969 insertions(+), 56 deletions(-) - ---- linux-2.6.24-rc1.orig/drivers/video/Kconfig -+++ linux-2.6.24-rc1/drivers/video/Kconfig -@@ -1718,6 +1718,24 @@ - - If unsure, say N. - -+choice -+ prompt "PXA LCD type" -+ depends on FB_PXA -+ -+config FB_PXA_LCD_QVGA -+ bool "QVGA(320x240)" -+ -+config FB_PXA_LCD_VGA -+ bool "VGA (640x480)" -+ -+endchoice -+ -+config FB_PXA_OVERLAY -+ tristate "PXA LCD overlay support" -+ depends on FB_PXA -+ ---help--- -+ Frame buffer overlay driver for PXA27x -+ - config FB_PXA_PARAMETERS - bool "PXA LCD command line parameters" - default n ---- linux-2.6.24-rc1.orig/drivers/video/Makefile -+++ linux-2.6.24-rc1/drivers/video/Makefile -@@ -96,6 +96,7 @@ - obj-$(CONFIG_FB_CIRRUS) += cirrusfb.o - obj-$(CONFIG_FB_ASILIANT) += asiliantfb.o - obj-$(CONFIG_FB_PXA) += pxafb.o -+obj-$(CONFIG_FB_PXA_OVERLAY) += pxafb_overlay.o - obj-$(CONFIG_FB_W100) += w100fb.o - obj-$(CONFIG_FB_AU1100) += au1100fb.o - obj-$(CONFIG_FB_AU1200) += au1200fb.o ---- linux-2.6.24-rc1.orig/drivers/video/pxafb.c -+++ linux-2.6.24-rc1/drivers/video/pxafb.c -@@ -59,17 +59,49 @@ - #define LCCR0_INVALID_CONFIG_MASK (LCCR0_OUM|LCCR0_BM|LCCR0_QDM|LCCR0_DIS|LCCR0_EFM|LCCR0_IUM|LCCR0_SFM|LCCR0_LDM|LCCR0_ENB) - #define LCCR3_INVALID_CONFIG_MASK (LCCR3_HSP|LCCR3_VSP|LCCR3_PCD|LCCR3_BPP) - -+wait_queue_head_t fcs_wait_eof; -+int fcs_in_eof; -+static DECLARE_MUTEX(fcs_lcd_sem); -+ - static void (*pxafb_backlight_power)(int); - static void (*pxafb_lcd_power)(int, struct fb_var_screeninfo *); - - static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info *); --static void set_ctrlr_state(struct pxafb_info *fbi, u_int state); -+void pxafb_set_ctrlr_state(struct pxafb_info *fbi, u_int state); - - #ifdef CONFIG_FB_PXA_PARAMETERS - #define PXAFB_OPTIONS_SIZE 256 - static char g_options[PXAFB_OPTIONS_SIZE] __devinitdata = ""; - #endif - -+static struct pxafb_rgb def_rgb_8 = { -+ red: { offset: 0, length: 8, }, -+ green: { offset: 0, length: 8, }, -+ blue: { offset: 0, length: 8, }, -+ transp: { offset: 0, length: 0, }, -+}; -+ -+static struct pxafb_rgb def_rgb_16 = { -+ red: { offset: 11, length: 5, }, -+ green: { offset: 5, length: 6, }, -+ blue: { offset: 0, length: 5, }, -+ transp: { offset: 0, length: 0, }, -+}; -+ -+static struct pxafb_rgb def_rgb_18 = { -+ red: { offset: 12, length: 6, }, -+ green: { offset: 6, length: 6, }, -+ blue: { offset: 0, length: 6, }, -+ transp: { offset: 0, length: 0, }, -+}; -+ -+static struct pxafb_rgb def_rgb_24 = { -+ red: { offset: 16, length: 8, }, -+ green: { offset: 8, length: 8, }, -+ blue: { offset: 0, length: 8, }, -+ transp: { offset: 0, length: 0, }, -+}; -+ - static inline void pxafb_schedule_work(struct pxafb_info *fbi, u_int state) - { - unsigned long flags; -@@ -209,6 +241,10 @@ - case 4: ret = LCCR3_4BPP; break; - case 8: ret = LCCR3_8BPP; break; - case 16: ret = LCCR3_16BPP; break; -+ case 18: ret = LCCR3_18BPP; break; -+ case 19: ret = LCCR3_19BPP; break; -+ case 24: ret = LCCR3_24BPP; break; -+ case 25: ret = LCCR3_25BPP; break; - } - return ret; - } -@@ -320,18 +356,34 @@ - * The pixel packing format is described on page 7-11 of the - * PXA2XX Developer's Manual. - */ -- if (var->bits_per_pixel == 16) { -- var->red.offset = 11; var->red.length = 5; -- var->green.offset = 5; var->green.length = 6; -- var->blue.offset = 0; var->blue.length = 5; -- var->transp.offset = var->transp.length = 0; -- } else { -- var->red.offset = var->green.offset = var->blue.offset = var->transp.offset = 0; -- var->red.length = 8; -- var->green.length = 8; -- var->blue.length = 8; -- var->transp.length = 0; -- } -+ switch (var->bits_per_pixel) { -+ case 16: -+ /* 2 pixels per line */ -+ var->red = def_rgb_16.red; -+ var->green = def_rgb_16.green; -+ var->blue = def_rgb_16.blue; -+ var->transp = def_rgb_16.transp; -+ break; -+ case 18: -+ case 19: -+ var->red = def_rgb_18.red; -+ var->green = def_rgb_18.green; -+ var->blue = def_rgb_18.blue; -+ var->transp = def_rgb_18.transp; -+ break; -+ case 24: -+ case 25: -+ var->red = def_rgb_24.red; -+ var->green = def_rgb_24.green; -+ var->blue = def_rgb_24.blue; -+ var->transp = def_rgb_24.transp; -+ break; -+ default: -+ var->red = def_rgb_8.red; -+ var->green = def_rgb_8.green; -+ var->blue = def_rgb_8.blue; -+ var->transp = def_rgb_8.transp; -+ } - - #ifdef CONFIG_CPU_FREQ - pr_debug("pxafb: dma period = %d ps, clock = %d kHz\n", -@@ -345,7 +397,7 @@ - static inline void pxafb_set_truecolor(u_int is_true_color) - { - pr_debug("pxafb: true_color = %d\n", is_true_color); -- // do your machine-specific setup if needed -+ /* do your machine-specific setup if needed */ - } - - /* -@@ -360,7 +412,8 @@ - - pr_debug("pxafb: set_par\n"); - -- if (var->bits_per_pixel == 16) -+ if (var->bits_per_pixel == 16 || var->bits_per_pixel == 18 ||var->bits_per_pixel == 19 -+ || var->bits_per_pixel == 24 || var->bits_per_pixel == 25) - fbi->fb.fix.visual = FB_VISUAL_TRUECOLOR; - else if (!fbi->cmap_static) - fbi->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR; -@@ -373,12 +426,25 @@ - fbi->fb.fix.visual = FB_VISUAL_STATIC_PSEUDOCOLOR; - } - -- fbi->fb.fix.line_length = var->xres_virtual * -- var->bits_per_pixel / 8; -- if (var->bits_per_pixel == 16) -- fbi->palette_size = 0; -- else -- fbi->palette_size = var->bits_per_pixel == 1 ? 4 : 1 << var->bits_per_pixel; -+ switch (var->bits_per_pixel) { -+ case 16: -+ fbi->fb.fix.line_length = var->xres_virtual * 2; -+ fbi->palette_size = 0; -+ break; -+ case 18: -+ case 19: -+ fbi->fb.fix.line_length = var->xres_virtual * 3; -+ fbi->palette_size = 0; -+ break; -+ case 24: -+ case 25: -+ fbi->fb.fix.line_length = var->xres_virtual * 4; -+ fbi->palette_size = 0; -+ break; -+ default: -+ fbi->fb.fix.line_length = var->xres_virtual * var->bits_per_pixel / 8; -+ fbi->palette_size = var->bits_per_pixel == 1 ? 4 : 1 << var->bits_per_pixel; -+ } - - if ((fbi->lccr4 & LCCR4_PAL_FOR_MASK) == LCCR4_PAL_FOR_0) - palette_mem_size = fbi->palette_size * sizeof(u16); -@@ -395,7 +461,8 @@ - */ - pxafb_set_truecolor(fbi->fb.fix.visual == FB_VISUAL_TRUECOLOR); - -- if (fbi->fb.var.bits_per_pixel == 16) -+ if (fbi->fb.var.bits_per_pixel == 16 || fbi->fb.var.bits_per_pixel == 18 ||fbi->fb.var.bits_per_pixel == 19 -+ || fbi->fb.var.bits_per_pixel == 24 || fbi->fb.var.bits_per_pixel == 25) - fb_dealloc_cmap(&fbi->fb.cmap); - else - fb_alloc_cmap(&fbi->fb.cmap, 1<fb.var.bits_per_pixel, 0); -@@ -441,7 +508,7 @@ - * 16 bpp mode does not really use the palette, so this will not - * blank the display in all modes. - */ --static int pxafb_blank(int blank, struct fb_info *info) -+int pxafb_blank(int blank, struct fb_info *info) - { - struct pxafb_info *fbi = (struct pxafb_info *)info; - int i; -@@ -458,19 +525,20 @@ - for (i = 0; i < fbi->palette_size; i++) - pxafb_setpalettereg(i, 0, 0, 0, 0, info); - -- pxafb_schedule_work(fbi, C_DISABLE); -- //TODO if (pxafb_blank_helper) pxafb_blank_helper(blank); -+ pxafb_schedule_work(fbi, C_BLANK); -+ /* TODO if (pxafb_blank_helper) pxafb_blank_helper(blank); */ - break; - - case FB_BLANK_UNBLANK: -- //TODO if (pxafb_blank_helper) pxafb_blank_helper(blank); -+ /* TODO if (pxafb_blank_helper) pxafb_blank_helper(blank); */ - if (fbi->fb.fix.visual == FB_VISUAL_PSEUDOCOLOR || - fbi->fb.fix.visual == FB_VISUAL_STATIC_PSEUDOCOLOR) - fb_set_cmap(&fbi->fb.cmap, info); -- pxafb_schedule_work(fbi, C_ENABLE); -+ pxafb_schedule_work(fbi, C_UNBLANK); - } - return 0; - } -+EXPORT_SYMBOL(pxafb_blank); - - static int pxafb_mmap(struct fb_info *info, - struct vm_area_struct *vma) -@@ -606,6 +674,10 @@ - case 4: - case 8: - case 16: -+ case 18: -+ case 19: -+ case 24: -+ case 25: - break; - default: - printk(KERN_ERR "%s: invalid bit depth %d\n", -@@ -637,7 +709,10 @@ - - new_regs.lccr0 = fbi->lccr0 | - (LCCR0_LDM | LCCR0_SFM | LCCR0_IUM | LCCR0_EFM | -- LCCR0_QDM | LCCR0_BM | LCCR0_OUM); -+#ifdef CONFIG_PXA27x /* Enable overlay for PXA27x */ -+ LCCR0_OUC | LCCR0_CMDIM | LCCR0_RDSTM | -+#endif -+ LCCR0_QDM | LCCR0_BM | LCCR0_OUM); - - new_regs.lccr1 = - LCCR1_DisWdth(var->xres) + -@@ -696,7 +771,7 @@ - - fbi->dmadesc_fbhigh_cpu->fsadr = fbi->screen_dma; - fbi->dmadesc_fbhigh_cpu->fidr = 0; -- fbi->dmadesc_fbhigh_cpu->ldcmd = BYTES_PER_PANEL; -+ fbi->dmadesc_fbhigh_cpu->ldcmd = BYTES_PER_PANEL | LDCMD_EOFINT; - - fbi->dmadesc_palette_cpu->fsadr = fbi->palette_dma; - fbi->dmadesc_palette_cpu->fidr = 0; -@@ -708,7 +783,8 @@ - sizeof(u32); - fbi->dmadesc_palette_cpu->ldcmd |= LDCMD_PAL; - -- if (var->bits_per_pixel == 16) { -+ if (var->bits_per_pixel == 16 || var->bits_per_pixel == 18 ||var->bits_per_pixel == 19 -+ || var->bits_per_pixel == 24 || var->bits_per_pixel == 25) { - /* palette shouldn't be loaded in true-color mode */ - fbi->dmadesc_fbhigh_cpu->fdadr = fbi->dmadesc_fbhigh_dma; - fbi->fdadr0 = fbi->dmadesc_fbhigh_dma; /* no pal just fbhigh */ -@@ -763,8 +839,8 @@ - } - - /* -- * NOTE! The following functions are purely helpers for set_ctrlr_state. -- * Do not call them directly; set_ctrlr_state does the correct serialisation -+ * NOTE! The following functions are purely helpers for pxafb_set_ctrlr_state. -+ * Do not call them directly; pxafb_set_ctrlr_state does the correct serialisation - * to ensure that things happen in the right way 100% of time time. - * -- rmk - */ -@@ -786,7 +862,8 @@ - - static void pxafb_setup_gpio(struct pxafb_info *fbi) - { -- int gpio, ldd_bits; -+ int gpio; -+ int ldd_bits = 0; - unsigned int lccr0 = fbi->lccr0; - - /* -@@ -796,28 +873,56 @@ - /* 4 bit interface */ - if ((lccr0 & LCCR0_CMS) == LCCR0_Mono && - (lccr0 & LCCR0_SDS) == LCCR0_Sngl && -- (lccr0 & LCCR0_DPD) == LCCR0_4PixMono) -+ (lccr0 & LCCR0_DPD) == LCCR0_4PixMono) { - ldd_bits = 4; -- -+ } - /* 8 bit interface */ - else if (((lccr0 & LCCR0_CMS) == LCCR0_Mono && - ((lccr0 & LCCR0_SDS) == LCCR0_Dual || (lccr0 & LCCR0_DPD) == LCCR0_8PixMono)) || - ((lccr0 & LCCR0_CMS) == LCCR0_Color && -- (lccr0 & LCCR0_PAS) == LCCR0_Pas && (lccr0 & LCCR0_SDS) == LCCR0_Sngl)) -+ (lccr0 & LCCR0_PAS) == LCCR0_Pas && (lccr0 & LCCR0_SDS) == LCCR0_Sngl)) { - ldd_bits = 8; -- -+ } - /* 16 bit interface */ -- else if ((lccr0 & LCCR0_CMS) == LCCR0_Color && -- ((lccr0 & LCCR0_SDS) == LCCR0_Dual || (lccr0 & LCCR0_PAS) == LCCR0_Act)) -- ldd_bits = 16; -+ else if ((lccr0 & LCCR0_CMS) == LCCR0_Color && -+ ((lccr0 & LCCR0_SDS) == LCCR0_Dual || (lccr0 & LCCR0_PAS) == LCCR0_Act)) { -+ switch (fbi->fb.var.bits_per_pixel) { -+ case 16: -+#ifdef CONFIG_PXA27x -+ /* bits 58-77 */ -+ GPDR1 |= (0x3f << 26); -+ GPDR2 |= 0x00003fff; - -+ GAFR1_U = (GAFR1_U & ~(0xfff << 20)) | (0xaaa << 20); -+ GAFR2_L = (GAFR2_L & 0xf0000000) | 0x0aaaaaaa; -+#endif -+ ldd_bits = 16; -+ break; -+ case 18: -+ case 19: -+ case 24: -+ case 25: -+#ifdef CONFIG_PXA27x -+ /* bits 58-77 and 86, 87 */ -+ GPDR1 |= (0x3f << 26); -+ GPDR2 |= 0x00c03fff; -+ -+ GAFR1_U = (GAFR1_U & ~(0xfff << 20)) | (0xaaa << 20); -+ GAFR2_L = (GAFR2_L & 0xf0000000) | 0x0aaaaaaa; -+ GAFR2_U = (GAFR2_U & 0xffff0fff) | 0xa000; -+#endif -+ ldd_bits = 25; -+ break; -+ } -+ } - else { - printk(KERN_ERR "pxafb_setup_gpio: unable to determine bits per pixel\n"); - return; - } - -- for (gpio = 58; ldd_bits; gpio++, ldd_bits--) -+ for (gpio = 58; ldd_bits > 0; gpio++, ldd_bits--) { - pxa_gpio_mode(gpio | GPIO_ALT_FN_2_OUT); -+ } - pxa_gpio_mode(GPIO74_LCD_FCLK_MD); - pxa_gpio_mode(GPIO75_LCD_LCLK_MD); - pxa_gpio_mode(GPIO76_LCD_PCLK_MD); -@@ -837,6 +942,7 @@ - /* enable LCD controller clock */ - clk_enable(fbi->clk); - -+ down(&fcs_lcd_sem); - /* Sequence from 11.7.10 */ - LCCR3 = fbi->reg_lccr3; - LCCR2 = fbi->reg_lccr2; -@@ -847,6 +953,8 @@ - FDADR1 = fbi->fdadr1; - LCCR0 |= LCCR0_ENB; - -+ up(&fcs_lcd_sem); -+ - pr_debug("FDADR0 0x%08x\n", (unsigned int) FDADR0); - pr_debug("FDADR1 0x%08x\n", (unsigned int) FDADR1); - pr_debug("LCCR0 0x%08x\n", (unsigned int) LCCR0); -@@ -862,6 +970,7 @@ - - pr_debug("pxafb: disabling LCD controller\n"); - -+ down(&fcs_lcd_sem); - set_current_state(TASK_UNINTERRUPTIBLE); - add_wait_queue(&fbi->ctrlr_wait, &wait); - -@@ -871,6 +980,7 @@ - - schedule_timeout(200 * HZ / 1000); - remove_wait_queue(&fbi->ctrlr_wait, &wait); -+ up(&fcs_lcd_sem); - - /* disable LCD controller clock */ - clk_disable(fbi->clk); -@@ -888,6 +998,11 @@ - LCCR0 |= LCCR0_LDM; - wake_up(&fbi->ctrlr_wait); - } -+ if (lcsr & LCSR_EOF && fcs_in_eof) { -+ LCCR0 |= LCCR0_EFM; -+ fcs_in_eof = 0; -+ wake_up(&fcs_wait_eof); -+ } - - LCSR = lcsr; - return IRQ_HANDLED; -@@ -898,7 +1013,7 @@ - * sleep when disabling the LCD controller, or if we get two contending - * processes trying to alter state. - */ --static void set_ctrlr_state(struct pxafb_info *fbi, u_int state) -+void pxafb_set_ctrlr_state(struct pxafb_info *fbi, u_int state) - { - u_int old_state; - -@@ -920,7 +1035,9 @@ - */ - if (old_state != C_DISABLE && old_state != C_DISABLE_PM) { - fbi->state = state; -- //TODO __pxafb_lcd_power(fbi, 0); -+ /* TODO __pxafb_lcd_power(fbi, 0); */ -+ if(fbi->set_overlay_ctrlr_state) -+ fbi->set_overlay_ctrlr_state(fbi, C_DISABLE); - pxafb_disable_controller(fbi); - } - break; -@@ -934,6 +1051,8 @@ - fbi->state = state; - __pxafb_backlight_power(fbi, 0); - __pxafb_lcd_power(fbi, 0); -+ if(fbi->set_overlay_ctrlr_state) -+ fbi->set_overlay_ctrlr_state(fbi, C_DISABLE); - if (old_state != C_DISABLE_CLKCHANGE) - pxafb_disable_controller(fbi); - } -@@ -947,7 +1066,9 @@ - if (old_state == C_DISABLE_CLKCHANGE) { - fbi->state = C_ENABLE; - pxafb_enable_controller(fbi); -- //TODO __pxafb_lcd_power(fbi, 1); -+ /* TODO __pxafb_lcd_power(fbi, 1); */ -+ if(fbi->set_overlay_ctrlr_state) -+ fbi->set_overlay_ctrlr_state(fbi, C_ENABLE); - } - break; - -@@ -959,9 +1080,13 @@ - */ - if (old_state == C_ENABLE) { - __pxafb_lcd_power(fbi, 0); -+ if(fbi->set_overlay_ctrlr_state) -+ fbi->set_overlay_ctrlr_state(fbi, C_DISABLE); - pxafb_disable_controller(fbi); - pxafb_setup_gpio(fbi); - pxafb_enable_controller(fbi); -+ if(fbi->set_overlay_ctrlr_state) -+ fbi->set_overlay_ctrlr_state(fbi, C_ENABLE); - __pxafb_lcd_power(fbi, 1); - } - break; -@@ -987,11 +1112,46 @@ - pxafb_enable_controller(fbi); - __pxafb_lcd_power(fbi, 1); - __pxafb_backlight_power(fbi, 1); -+ if(fbi->set_overlay_ctrlr_state) -+ fbi->set_overlay_ctrlr_state(fbi, C_ENABLE); - } - break; -+ -+ case C_BLANK: -+ /* -+ * Disable controller, blank overlays if exist. -+ */ -+ if ((old_state != C_DISABLE) && (old_state != C_BLANK)) { -+ fbi->state = state; -+ __pxafb_backlight_power(fbi, 0); -+ __pxafb_lcd_power(fbi, 0); -+ if(fbi->set_overlay_ctrlr_state) -+ fbi->set_overlay_ctrlr_state(fbi, C_BLANK); -+ if (old_state != C_DISABLE_CLKCHANGE) -+ pxafb_disable_controller(fbi); -+ } -+ break; -+ -+ case C_UNBLANK: -+ /* -+ * Power up the LCD screen, enable controller, and -+ * turn on the backlight, unblank overlays if exist. -+ */ -+ if ((old_state != C_ENABLE) && (old_state != C_UNBLANK)) { -+ fbi->state = C_UNBLANK; -+ pxafb_setup_gpio(fbi); -+ pxafb_enable_controller(fbi); -+ __pxafb_lcd_power(fbi, 1); -+ __pxafb_backlight_power(fbi, 1); -+ if(fbi->set_overlay_ctrlr_state) -+ fbi->set_overlay_ctrlr_state(fbi, C_UNBLANK); -+ } -+ break; -+ - } - up(&fbi->ctrlr_sem); - } -+EXPORT_SYMBOL(pxafb_set_ctrlr_state); - - /* - * Our LCD controller task (which is called when we blank or unblank) -@@ -1003,7 +1163,7 @@ - container_of(work, struct pxafb_info, task); - u_int state = xchg(&fbi->task_state, -1); - -- set_ctrlr_state(fbi, state); -+ pxafb_set_ctrlr_state(fbi, state); - } - - #ifdef CONFIG_CPU_FREQ -@@ -1018,19 +1178,29 @@ - pxafb_freq_transition(struct notifier_block *nb, unsigned long val, void *data) - { - struct pxafb_info *fbi = TO_INF(nb, freq_transition); -- //TODO struct cpufreq_freqs *f = data; -+ /* TODO struct cpufreq_freqs *f = data; */ -+ struct cpufreq_freqs *clkinfo; - u_int pcd; -+ u_int lccr3; - - switch (val) { - case CPUFREQ_PRECHANGE: -- set_ctrlr_state(fbi, C_DISABLE_CLKCHANGE); -+ pxafb_set_ctrlr_state(fbi, C_DISABLE_CLKCHANGE); - break; - - case CPUFREQ_POSTCHANGE: -- pcd = get_pcd(fbi, fbi->fb.var.pixclock); -+ clkinfo = (struct cpufreq_freqs *)data; -+ /* If leaving a 13kHz state with the LCD sustained */ -+ if ((clkinfo->old == 13000)) -+ break; -+ -+ pcd = get_pcd(fbi->fb.var.pixclock); -+ lccr3 = fbi->reg_lccr3; - set_hsync_time(fbi, pcd); - fbi->reg_lccr3 = (fbi->reg_lccr3 & ~0xff) | LCCR3_PixClkDiv(pcd); -- set_ctrlr_state(fbi, C_ENABLE_CLKCHANGE); -+ pxafb_set_ctrlr_state(fbi, C_ENABLE_CLKCHANGE); -+ if (lccr3 != fbi->reg_lccr3 && !((LCCR0 & LCCR0_DIS) || !(LCCR0 & LCCR0_ENB))) -+ LCCR3 = fbi->reg_lccr3; - break; - } - return 0; -@@ -1049,7 +1219,7 @@ - printk(KERN_DEBUG "min dma period: %d ps, " - "new clock %d kHz\n", pxafb_display_dma_period(var), - policy->max); -- // TODO: fill in min/max values -+ /* TODO: fill in min/max values */ - break; - #if 0 - case CPUFREQ_NOTIFY: -@@ -1075,7 +1245,7 @@ - { - struct pxafb_info *fbi = platform_get_drvdata(dev); - -- set_ctrlr_state(fbi, C_DISABLE_PM); -+ pxafb_set_ctrlr_state(fbi, C_DISABLE_PM); - return 0; - } - -@@ -1083,7 +1253,11 @@ - { - struct pxafb_info *fbi = platform_get_drvdata(dev); - -- set_ctrlr_state(fbi, C_ENABLE_PM); -+ pxafb_set_ctrlr_state(fbi, C_ENABLE_PM); -+//RP#ifdef CONFIG_PXA27x -+//RP LCCR4 |= (1 << 31); /* Disable the PCD Divisor, PCDDIV */ -+//RP LCCR4 |= (5 << 17); /* Undocumented feature */ -+//RP#endif - return 0; - } - #else -@@ -1197,11 +1371,21 @@ - fbi->task_state = (u_char)-1; - - for (i = 0; i < inf->num_modes; i++) { -- smemlen = mode[i].xres * mode[i].yres * mode[i].bpp / 8; -+ if (mode[i].bpp <= 16) { /* 8, 16 bpp */ -+ smemlen = mode[i].xres * mode[i].yres * mode[i].bpp / 8; -+ } else if ( mode[i].bpp > 19 ) { /* 24, 25 bpp */ -+ smemlen = mode[i].xres * mode[i].yres * 4; -+ } else { /* 18, 19 bpp */ -+ /* packed format */ -+ smemlen = mode[i].xres * mode[i].yres * 3; -+ } -+ - if (smemlen > fbi->fb.fix.smem_len) - fbi->fb.fix.smem_len = smemlen; - } - -+ fbi->set_overlay_ctrlr_state = NULL; -+ - init_waitqueue_head(&fbi->ctrlr_wait); - INIT_WORK(&fbi->task, pxafb_task); - init_MUTEX(&fbi->ctrlr_sem); -@@ -1268,6 +1452,10 @@ - case 4: - case 8: - case 16: -+ case 18: -+ case 19: -+ case 24: -+ case 25: - inf->modes[0].bpp = bpp; - dev_info(dev, "overriding bit depth: %d\n", bpp); - break; -@@ -1416,7 +1604,7 @@ - fbi = pxafb_init_fbinfo(&dev->dev); - if (!fbi) { - dev_err(&dev->dev, "Failed to initialize framebuffer device\n"); -- ret = -ENOMEM; // only reason for pxafb_init_fbinfo to fail is kmalloc -+ ret = -ENOMEM; /* only reason for pxafb_init_fbinfo to fail is kmalloc */ - goto failed; - } - -@@ -1451,7 +1639,7 @@ - } - - #ifdef CONFIG_PM -- // TODO -+ /* TODO */ - #endif - - #ifdef CONFIG_CPU_FREQ -@@ -1464,7 +1652,12 @@ - /* - * Ok, now enable the LCD controller - */ -- set_ctrlr_state(fbi, C_ENABLE); -+ pxafb_set_ctrlr_state(fbi, C_ENABLE); -+//#ifdef CONFIG_PXA27x -+// LCCR4 |= (1 << 31); /* Disabel the PCD Divisor, PCDDIV */ -+// LCCR4 |= (5 << 17); /* Undocumented feature */ -+//#endif -+ init_waitqueue_head(&fcs_wait_eof); - - return 0; - ---- linux-2.6.24-rc1.orig/drivers/video/pxafb.h -+++ linux-2.6.24-rc1/drivers/video/pxafb.h -@@ -29,6 +29,60 @@ - unsigned int lccr3; - }; - -+struct pxafb_rgb { -+ struct fb_bitfield red; -+ struct fb_bitfield green; -+ struct fb_bitfield blue; -+ struct fb_bitfield transp; -+}; -+ -+#ifdef CONFIG_PXA27x -+/* PXA Overlay Framebuffer Support */ -+struct overlayfb_info -+{ -+ struct fb_info fb; -+ -+ struct fb_var_screeninfo old_var; -+ -+ struct semaphore mutex; -+ unsigned long refcount; -+ -+ struct pxafb_info *basefb; -+ -+ unsigned long map_cpu; -+ unsigned long screen_cpu; -+ unsigned long palette_cpu; -+ unsigned long map_size; -+ unsigned long palette_size; -+ -+ dma_addr_t screen_dma; -+ dma_addr_t map_dma; -+ dma_addr_t palette_dma; -+ -+ volatile u_char state; -+ -+ /* overlay specific info */ -+ unsigned long xpos; /* screen position (x, y)*/ -+ unsigned long ypos; -+ unsigned long format; -+ -+ /* additional */ -+ union { -+ struct pxafb_dma_descriptor *dma0; -+ struct pxafb_dma_descriptor *dma1; -+ struct { -+ struct pxafb_dma_descriptor *dma2; -+ struct pxafb_dma_descriptor *dma3; -+ struct pxafb_dma_descriptor *dma4; -+ }; -+ struct { -+ struct pxafb_dma_descriptor *dma5_pal; -+ struct pxafb_dma_descriptor *dma5_frame; -+ }; -+ }; -+}; -+#endif -+ - /* PXA LCD DMA descriptor */ - struct pxafb_dma_descriptor { - unsigned int fdadr; -@@ -90,6 +144,14 @@ - wait_queue_head_t ctrlr_wait; - struct work_struct task; - -+#ifdef CONFIG_PXA27x -+ /* PXA Overlay Framebuffer Support */ -+ struct overlayfb_info *overlay1fb; -+ struct overlayfb_info *overlay2fb; -+ struct overlayfb_info *cursorfb; -+#endif -+ void (*set_overlay_ctrlr_state)(struct pxafb_info *, u_int); -+ - #ifdef CONFIG_CPU_FREQ - struct notifier_block freq_transition; - struct notifier_block freq_policy; -@@ -109,6 +171,9 @@ - #define C_DISABLE_PM (5) - #define C_ENABLE_PM (6) - #define C_STARTUP (7) -+#define C_BLANK (8) -+#define C_UNBLANK (9) -+ - - #define PXA_NAME "PXA" - ---- /dev/null -+++ linux-2.6.24-rc1/drivers/video/pxafb_overlay.c -@@ -0,0 +1,1525 @@ -+/* -+ * linux/drivers/video/pxafb_overlay.c -+ * -+ * Copyright (c) 2004, Intel Corporation -+ * -+ * Code Status: -+ * 2004/10/28: -+ * - Ported to 2.6 kernel -+ * - Made overlay driver a loadable module -+ * - Merged overlay optimized patch -+ * 2004/03/10: -+ * - Fixed Bugs -+ * - Added workaround for overlay1&2 -+ * 2003/08/27: -+ * - Added Overlay 1 & Overlay2 & Hardware Cursor support -+ * -+ * -+ * This software program is licensed subject to the GNU Lesser General -+ * Public License (LGPL). Version 2.1, February 1999, available at -+ * http://www.gnu.org/copyleft/lesser.html -+ * -+ * Intel PXA27x LCD Controller Frame Buffer Overlay Driver -+ * -+ * -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include "pxafb.h" -+ -+/* LCD enhancement : Overlay 1 & 2 & Hardware Cursor */ -+ -+/* -+ * LCD enhancement : Overlay 1 -+ * -+ * Features: -+ * - support 16bpp (No palette) -+ */ -+/* -+ * debugging? -+ */ -+#define DEBUG 0 -+ -+#ifdef DEBUG -+#define dbg(fmt,arg...) printk(KERN_ALERT "%s(): " fmt "\n", __FUNCTION__, ##arg) -+#else -+#define dbg(fmt,arg...) -+#endif -+ -+static int overlay1fb_enable(struct fb_info *info); -+static int overlay2fb_enable(struct fb_info *info); -+static int cursorfb_enable(struct fb_info *info); -+ -+static int overlay1fb_disable(struct fb_info *info); -+static int overlay2fb_disable(struct fb_info *info); -+static int cursorfb_disable(struct fb_info *info); -+ -+static int overlay1fb_blank(int blank, struct fb_info *info); -+static int overlay2fb_blank(int blank, struct fb_info *info); -+static int cursorfb_blank(int blank, struct fb_info *info); -+ -+extern void pxafb_set_ctrlr_state(struct pxafb_info *fbi, u_int state); -+extern int pxafb_blank(int blank, struct fb_info *info); -+ -+static struct pxafb_rgb def_rgb_18 = { -+ red: { offset: 12, length: 6, }, -+ green: { offset: 6, length: 6, }, -+ blue: { offset: 0, length: 6, }, -+ transp: { offset: 0, length: 0, }, -+}; -+ -+static struct pxafb_rgb def_rgbt_16 = { -+ red: { offset: 10, length: 5, }, -+ green: { offset: 5, length: 5, }, -+ blue: { offset: 0, length: 5, }, -+ transp: { offset: 15, length: 1, }, -+}; -+ -+static struct pxafb_rgb def_rgbt_19 = { -+ red: { offset: 12, length: 6, }, -+ green: { offset: 6, length: 6, }, -+ blue: { offset: 0, length: 6, }, -+ transp: { offset: 18, length: 1, }, -+}; -+ -+static struct pxafb_rgb def_rgbt_24 = { -+ red: { offset: 16, length: 7, }, -+ green: { offset: 8, length: 8, }, -+ blue: { offset: 0, length: 8, }, -+ transp: { offset: 0, length: 0, }, -+}; -+ -+static struct pxafb_rgb def_rgbt_25 = { -+ red: { offset: 16, length: 8, }, -+ green: { offset: 8, length: 8, }, -+ blue: { offset: 0, length: 8, }, -+ transp: { offset: 24, length: 1, }, -+}; -+ -+#define CLEAR_LCD_INTR(reg, intr) do { \ -+ reg = (intr); \ -+}while(0) -+ -+#define WAIT_FOR_LCD_INTR(reg,intr,timeout) ({ \ -+ int __done =0; \ -+ int __t = timeout; \ -+ while (__t) { \ -+ __done = (reg) & (intr); \ -+ if (__done) break; \ -+ mdelay(10); \ -+ __t--; \ -+ } \ -+ if (!__t) dbg("wait " #intr " timeount");\ -+ __done; \ -+}) -+ -+#define DISABLE_OVERLAYS(fbi) do { \ -+ if (fbi->overlay1fb && (fbi->overlay1fb->state == C_ENABLE)) { \ -+ overlay1fb_disable((struct fb_info*)fbi->overlay1fb); \ -+ } \ -+ if (fbi->overlay2fb && (fbi->overlay2fb->state == C_ENABLE)) { \ -+ overlay2fb_disable((struct fb_info*)fbi->overlay2fb); \ -+ } \ -+ if (fbi->cursorfb && (fbi->cursorfb->state == C_ENABLE)) { \ -+ cursorfb_disable((struct fb_info*)fbi->cursorfb); \ -+ } \ -+}while(0) -+ -+#define ENABLE_OVERLAYS(fbi) do { \ -+ if (fbi->overlay1fb && (fbi->overlay1fb->state == C_DISABLE)) { \ -+ overlay1fb_enable((struct fb_info*)fbi->overlay1fb); \ -+ } \ -+ if (fbi->overlay2fb && (fbi->overlay2fb->state == C_DISABLE)) { \ -+ overlay2fb_enable((struct fb_info*)fbi->overlay2fb); \ -+ } \ -+ if (fbi->cursorfb && (fbi->cursorfb->state == C_DISABLE)) { \ -+ cursorfb_enable((struct fb_info*)fbi->cursorfb); \ -+ } \ -+}while(0) -+ -+#define BLANK_OVERLAYS(fbi) do { \ -+ if (fbi->overlay1fb && (fbi->overlay1fb->state == C_ENABLE)) { \ -+ overlay1fb_disable((struct fb_info*)fbi->overlay1fb); \ -+ fbi->overlay1fb->state = C_BLANK; \ -+ } \ -+ if (fbi->overlay2fb && (fbi->overlay2fb->state == C_ENABLE)) { \ -+ overlay2fb_disable((struct fb_info*)fbi->overlay2fb); \ -+ fbi->overlay2fb->state = C_BLANK; \ -+ } \ -+ if (fbi->cursorfb && (fbi->cursorfb->state == C_ENABLE)) { \ -+ cursorfb_disable((struct fb_info*)fbi->cursorfb); \ -+ fbi->cursorfb->state = C_BLANK; \ -+ } \ -+}while(0) -+ -+#define UNBLANK_OVERLAYS(fbi) do { \ -+ if (fbi->overlay1fb && (fbi->overlay1fb->state == C_BLANK)) { \ -+ overlay1fb_enable((struct fb_info*)fbi->overlay1fb); \ -+ fbi->overlay1fb->state = C_ENABLE; \ -+ } \ -+ if (fbi->overlay2fb && (fbi->overlay2fb->state == C_BLANK)) { \ -+ overlay2fb_enable((struct fb_info*)fbi->overlay2fb); \ -+ fbi->overlay2fb->state = C_ENABLE; \ -+ } \ -+ if (fbi->cursorfb && (fbi->cursorfb->state == C_BLANK)) { \ -+ cursorfb_enable((struct fb_info*)fbi->cursorfb); \ -+ fbi->cursorfb->state = C_ENABLE; \ -+ } \ -+}while(0) -+ -+static int overlay1fb_open(struct fb_info *info, int user) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info*) info; -+ int ret = 0; -+ -+/* If basefb is disable, enable fb. */ -+ if (fbi->basefb && fbi->basefb->state != C_ENABLE) -+ pxafb_blank(VESA_NO_BLANKING, (struct fb_info *)(fbi->basefb)); -+ -+ down(&fbi->mutex); -+ -+ if (fbi->refcount) -+ ret = -EACCES; -+ else -+ fbi->refcount ++; -+ -+ up(&fbi->mutex); -+ -+ /* Initialize the variables in overlay1 framebuffer. */ -+ fbi->fb.var.xres = fbi->fb.var.yres = 0; -+ fbi->fb.var.bits_per_pixel = 0; -+ -+ return ret; -+} -+ -+static int overlay1fb_release(struct fb_info *info, int user) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info*) info; -+ down(&fbi->mutex); -+ -+ if (fbi->refcount) -+ fbi->refcount --; -+ -+ up(&fbi->mutex); -+ /* disable overlay when released */ -+ overlay1fb_blank(1, info); -+ -+ return 0; -+} -+ -+static int overlay1fb_map_video_memory(struct fb_info *info) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info*) info; -+ -+ if (fbi->map_cpu) -+ dma_free_writecombine(NULL, fbi->map_size, (void*)fbi->map_cpu, fbi->map_dma); -+ fbi->map_size = PAGE_ALIGN(fbi->fb.fix.smem_len + PAGE_SIZE); -+ -+ fbi->map_cpu = (unsigned long)dma_alloc_writecombine(NULL, fbi->map_size, -+ &fbi->map_dma, GFP_KERNEL ); -+ -+ if (!fbi->map_cpu) return -ENOMEM; -+ -+ fbi->screen_cpu = fbi->map_cpu + PAGE_SIZE; -+ fbi->screen_dma = fbi->map_dma + PAGE_SIZE; -+ -+ fbi->fb.fix.smem_start = fbi->screen_dma; -+ -+ /* setup dma descriptor */ -+ fbi->dma1 = (struct pxafb_dma_descriptor*) -+ (fbi->screen_cpu - sizeof(struct pxafb_dma_descriptor)); -+ -+ fbi->dma1->fdadr = (fbi->screen_dma - sizeof(struct pxafb_dma_descriptor)); -+ fbi->dma1->fsadr = fbi->screen_dma; -+ fbi->dma1->fidr = 0; -+ fbi->dma1->ldcmd = fbi->fb.fix.smem_len; -+ -+ return 0; -+} -+ -+static int overlay1fb_enable(struct fb_info *info) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info*) info; -+ unsigned long bpp1; -+ -+ if (!fbi->map_cpu) return -EINVAL; -+ -+ switch (fbi->fb.var.bits_per_pixel) { -+ case 16: -+ bpp1 = 0x4; -+ break; -+ case 18: -+ bpp1 = 0x6; -+ break; -+ case 19: -+ bpp1 = 0x8; -+ break; -+ case 24: -+ bpp1 = 0x9; -+ break; -+ case 25: -+ bpp1 = 0xa; -+ break; -+ default: -+ return -EINVAL; -+ } -+ -+ /* disable branch/start/end of frame interrupt */ -+ LCCR5 |= (LCCR5_IUM1 | LCCR5_BSM1 | LCCR5_EOFM1 | LCCR5_SOFM1); -+ -+ if (fbi->state == C_DISABLE || fbi->state == C_BLANK) -+ FDADR1 = (fbi->dma1->fdadr); -+ else -+ FBR1 = fbi->dma1->fdadr | 0x1; -+ -+ /* enable overlay 1 window */ -+ OVL1C2 = (fbi->ypos << 10) | fbi->xpos; -+ OVL1C1 = OVL1C1_O1EN | (bpp1 << 20) | ((fbi->fb.var.yres-1)<<10) | (fbi->fb.var.xres-1); -+ -+ fbi->state = C_ENABLE; -+ -+ return 0; -+} -+ -+static int overlay1fb_disable(struct fb_info *info) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info*)info; -+ int done; -+ -+ if ((fbi->state == C_DISABLE) || (fbi->state == C_BLANK)) -+ return 0; -+ -+ fbi->state = C_DISABLE; -+ -+ /* clear O1EN */ -+ OVL1C1 &= ~OVL1C1_O1EN; -+ -+ CLEAR_LCD_INTR(LCSR1, LCSR1_BS1); -+ FBR1 = 0x3; -+ done = WAIT_FOR_LCD_INTR(LCSR1, LCSR1_BS1, 100); -+ -+ if (!done) { -+ pr_debug(KERN_INFO "%s: timeout\n", __FUNCTION__); -+ return -1; -+ } -+ return 0; -+} -+ -+static int overlay1fb_blank(int blank, struct fb_info *info) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info*) info; -+ int err=0; -+ -+ switch (blank) { -+ case 0: -+ err = overlay1fb_enable(info); -+ if (err) { -+ fbi->state = C_DISABLE; -+ pxafb_set_ctrlr_state(fbi->basefb, C_REENABLE); -+ } -+ break; -+ case 1: -+ err = overlay1fb_disable(info); -+ if (err) { -+ fbi->state = C_DISABLE; -+ pxafb_set_ctrlr_state(fbi->basefb, C_REENABLE); -+ } -+ break; -+ default: -+ break; -+ } -+ -+ return err; -+} -+ -+static int overlay1fb_check_var( struct fb_var_screeninfo *var, struct fb_info *info) -+{ -+ int xpos, ypos; -+ struct overlayfb_info *fbi=(struct overlayfb_info*)info; -+ -+ /* must in base frame */ -+ xpos = (var->nonstd & 0x3ff); -+ ypos = ((var->nonstd>>10) & 0x3ff); -+ -+ if ( (xpos + var->xres) > fbi->basefb->fb.var.xres ) -+ return -EINVAL; -+ -+ if ( (ypos + var->yres) > fbi->basefb->fb.var.yres ) -+ return -EINVAL; -+ -+ switch (var->bits_per_pixel) { -+ case 16: -+ if ( var->xres & 0x1 ) { -+ printk("xres should be a multiple of 2 pixels!\n"); -+ return -EINVAL; -+ } -+ break; -+ case 18: -+ case 19: -+ if ( var->xres & 0x7 ) { -+ printk("xres should be a multiple of 8 pixels!\n"); -+ return -EINVAL; -+ } -+ break; -+ default: -+ break; -+ } -+ -+ fbi->old_var=*var; -+ -+ var->activate=FB_ACTIVATE_NOW; -+ -+ return 0; -+} -+ -+ -+static int overlay1fb_set_par(struct fb_info *info) -+{ -+ int nbytes=0, err=0, pixels_per_line=0; -+ -+ struct overlayfb_info *fbi=(struct overlayfb_info*)info; -+ struct fb_var_screeninfo *var = &fbi->fb.var; -+ -+ info->flags &= ~FBINFO_MISC_USEREVENT; -+ -+ if (fbi->state == C_BLANK) -+ return 0; -+ -+ if (fbi->state == C_DISABLE) -+ goto out1; -+ -+ /* only xpos & ypos change */ -+ if ( (var->xres == fbi->old_var.xres) && -+ (var->yres == fbi->old_var.yres) && -+ (var->bits_per_pixel == fbi->old_var.bits_per_pixel) ) -+ goto out2; -+ -+out1: -+ switch(var->bits_per_pixel) { -+ case 16: -+ /* 2 pixels per line */ -+ pixels_per_line = (fbi->fb.var.xres + 0x1) & (~0x1); -+ nbytes = 2; -+ -+ var->red = def_rgbt_16.red; -+ var->green = def_rgbt_16.green; -+ var->blue = def_rgbt_16.blue; -+ var->transp = def_rgbt_16.transp; -+ -+ break; -+ case 18: -+ /* 8 pixels per line */ -+ pixels_per_line = (fbi->fb.var.xres + 0x7 ) & (~0x7); -+ nbytes = 3; -+ -+ var->red = def_rgb_18.red; -+ var->green = def_rgb_18.green; -+ var->blue = def_rgb_18.blue; -+ var->transp = def_rgb_18.transp; -+ -+ break; -+ case 19: -+ /* 8 pixels per line */ -+ pixels_per_line = (fbi->fb.var.xres + 0x7 ) & (~0x7); -+ nbytes = 3; -+ -+ var->red = def_rgbt_19.red; -+ var->green = def_rgbt_19.green; -+ var->blue = def_rgbt_19.blue; -+ var->transp = def_rgbt_19.transp; -+ -+ break; -+ case 24: -+ pixels_per_line = fbi->fb.var.xres; -+ nbytes = 4; -+ -+ var->red = def_rgbt_24.red; -+ var->green = def_rgbt_24.green; -+ var->blue = def_rgbt_24.blue; -+ var->transp = def_rgbt_24.transp; -+ -+ break; -+ case 25: -+ pixels_per_line = fbi->fb.var.xres; -+ nbytes = 4; -+ -+ var->red = def_rgbt_25.red; -+ var->green = def_rgbt_25.green; -+ var->blue = def_rgbt_25.blue; -+ var->transp = def_rgbt_25.transp; -+ -+ break; -+ } -+ -+ fbi->fb.fix.line_length = nbytes * pixels_per_line; -+ fbi->fb.fix.smem_len = fbi->fb.fix.line_length * fbi->fb.var.yres; -+ -+ err= overlay1fb_map_video_memory((struct fb_info*)fbi); -+ -+ if (err) -+ return err; -+ -+out2: -+ fbi->xpos = var->nonstd & 0x3ff; -+ fbi->ypos = (var->nonstd>>10) & 0x3ff; -+ -+ overlay1fb_enable(info); -+ -+ return 0; -+ -+} -+ -+static struct fb_ops overlay1fb_ops = { -+ .owner = THIS_MODULE, -+ .fb_open = overlay1fb_open, -+ .fb_release = overlay1fb_release, -+ .fb_check_var = overlay1fb_check_var, -+ .fb_set_par = overlay1fb_set_par, -+ .fb_blank = overlay1fb_blank, -+ .fb_fillrect = cfb_fillrect, -+ .fb_copyarea = cfb_copyarea, -+ .fb_imageblit = cfb_imageblit, -+}; -+ -+ /* -+ * LCD enhancement : Overlay 2 -+ * -+ * Features: -+ * - support planar YCbCr420/YCbCr422/YCbCr444; -+ */ -+static int overlay2fb_open(struct fb_info *info, int user) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info*) info; -+ int ret = 0; -+ -+ /* if basefb is disable, enable fb. */ -+ if (fbi->basefb && fbi->basefb->state != C_ENABLE) -+ pxafb_blank(VESA_NO_BLANKING, (struct fb_info *)(fbi->basefb)); -+ -+ down(&fbi->mutex); -+ -+ if (fbi->refcount) -+ ret = -EACCES; -+ else -+ fbi->refcount ++; -+ -+ up(&fbi->mutex); -+ fbi->fb.var.xres = fbi->fb.var.yres = 0; -+ -+ return ret; -+} -+ -+static int overlay2fb_release(struct fb_info *info, int user) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info*) info; -+ -+ down(&fbi->mutex); -+ -+ if (fbi->refcount) -+ fbi->refcount --; -+ -+ up(&fbi->mutex); -+ -+ /* disable overlay when released */ -+ overlay2fb_blank(1, info); -+ -+ return 0; -+} -+ -+static int overlay2fb_map_YUV_memory( struct fb_info *info) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info*) info; -+ unsigned int ylen, cblen, crlen, aylen, acblen, acrlen; -+ unsigned int yoff, cboff, croff; -+ unsigned int xres,yres; -+ unsigned int nbytes; -+ -+ ylen = cblen = crlen = aylen = acblen = acrlen = 0; -+ yoff = cboff = croff = 0; -+ -+ if (fbi->map_cpu) -+ dma_free_writecombine(NULL, fbi->map_size, (void*)fbi->map_cpu, fbi->map_dma); -+ -+ yres = fbi->fb.var.yres; -+ -+ switch(fbi->format) { -+ case 0x4: /* YCbCr 4:2:0 planar */ -+ pr_debug("420 planar\n"); -+ /* 16 pixels per line */ -+ xres = (fbi->fb.var.xres + 0xf) & (~0xf); -+ fbi->fb.fix.line_length = xres; -+ -+ nbytes = xres * yres; -+ ylen = nbytes; -+ cblen = crlen = (nbytes/4); -+ -+ break; -+ case 0x3: /* YCbCr 4:2:2 planar */ -+ /* 8 pixles per line */ -+ pr_debug("422 planar\n"); -+ xres = (fbi->fb.var.xres + 0x7) & (~0x7); -+ fbi->fb.fix.line_length = xres; -+ -+ nbytes = xres * yres; -+ ylen = nbytes; -+ cblen = crlen = (nbytes/2); -+ -+ break; -+ case 0x2: /* YCbCr 4:4:4 planar */ -+ /* 4 pixels per line */ -+ pr_debug("444 planar\n"); -+ xres = (fbi->fb.var.xres + 0x3) & (~0x3); -+ fbi->fb.fix.line_length = xres; -+ -+ nbytes = xres * yres; -+ ylen = cblen = crlen = nbytes; -+ break; -+ } -+ -+ /* 16-bytes alignment for DMA */ -+ aylen = (ylen + 0xf) & (~0xf); -+ acblen = (cblen + 0xf) & (~0xf); -+ acrlen = (crlen + 0xf) & (~0xf); -+ -+ fbi->fb.fix.smem_len = aylen + acblen + acrlen; -+ -+ /* alloc memory */ -+ -+ fbi->map_size = PAGE_ALIGN(fbi->fb.fix.smem_len + PAGE_SIZE); -+ fbi->map_cpu = (unsigned long)dma_alloc_writecombine(NULL, fbi->map_size, -+ &fbi->map_dma, GFP_KERNEL ); -+ -+ if (!fbi->map_cpu) return -ENOMEM; -+ -+ fbi->screen_cpu = fbi->map_cpu + PAGE_SIZE; -+ fbi->screen_dma = fbi->map_dma + PAGE_SIZE; -+ -+ fbi->fb.fix.smem_start = fbi->screen_dma; -+ -+ /* setup dma for Planar format */ -+ fbi->dma2 = (struct pxafb_dma_descriptor*) -+ (fbi->screen_cpu - sizeof(struct pxafb_dma_descriptor)); -+ fbi->dma3 = fbi->dma2 - 1; -+ fbi->dma4 = fbi->dma3 - 1; -+ -+ /* offset */ -+ yoff = 0; -+ cboff = aylen; -+ croff = cboff + acblen; -+ -+ /* Y vector */ -+ fbi->dma2->fdadr = (fbi->screen_dma - sizeof(struct pxafb_dma_descriptor)); -+ fbi->dma2->fsadr = fbi->screen_dma + yoff; -+ fbi->dma2->fidr = 0; -+ fbi->dma2->ldcmd = ylen; -+ -+ /* Cb vector */ -+ fbi->dma3->fdadr = (fbi->dma2->fdadr - sizeof(struct pxafb_dma_descriptor)); -+ fbi->dma3->fsadr = (fbi->screen_dma + cboff); -+ fbi->dma3->fidr = 0; -+ fbi->dma3->ldcmd = cblen; -+ -+ /* Cr vector */ -+ -+ fbi->dma4->fdadr = (fbi->dma3->fdadr - sizeof(struct pxafb_dma_descriptor)); -+ fbi->dma4->fsadr = (fbi->screen_dma + croff); -+ fbi->dma4->fidr = 0; -+ fbi->dma4->ldcmd = crlen; -+ -+ /* adjust for user */ -+ fbi->fb.var.red.length = ylen; -+ fbi->fb.var.red.offset = yoff; -+ fbi->fb.var.green.length = cblen; -+ fbi->fb.var.green.offset = cboff; -+ fbi->fb.var.blue.length = crlen; -+ fbi->fb.var.blue.offset = croff; -+ -+ return 0; -+}; -+ -+static int overlay2fb_map_RGB_memory( struct fb_info *info) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info*) info; -+ struct fb_var_screeninfo *var = &fbi->fb.var; -+ int pixels_per_line=0 , nbytes=0; -+ -+ if (fbi->map_cpu) -+ dma_free_writecombine(NULL, fbi->map_size, (void*)fbi->map_cpu, fbi->map_dma); -+ -+ switch(var->bits_per_pixel) { -+ case 16: -+ /* 2 pixels per line */ -+ pixels_per_line = (fbi->fb.var.xres + 0x1) & (~0x1); -+ nbytes = 2; -+ -+ var->red = def_rgbt_16.red; -+ var->green = def_rgbt_16.green; -+ var->blue = def_rgbt_16.blue; -+ var->transp = def_rgbt_16.transp; -+ break; -+ -+ case 18: -+ /* 8 pixels per line */ -+ pixels_per_line = (fbi->fb.var.xres + 0x7 ) & (~0x7); -+ nbytes = 3; -+ -+ var->red = def_rgb_18.red; -+ var->green = def_rgb_18.green; -+ var->blue = def_rgb_18.blue; -+ var->transp = def_rgb_18.transp; -+ -+ break; -+ case 19: -+ /* 8 pixels per line */ -+ pixels_per_line = (fbi->fb.var.xres + 0x7 ) & (~0x7); -+ nbytes = 3; -+ -+ var->red = def_rgbt_19.red; -+ var->green = def_rgbt_19.green; -+ var->blue = def_rgbt_19.blue; -+ var->transp = def_rgbt_19.transp; -+ -+ break; -+ case 24: -+ pixels_per_line = fbi->fb.var.xres; -+ nbytes = 4; -+ -+ var->red = def_rgbt_24.red; -+ var->green = def_rgbt_24.green; -+ var->blue = def_rgbt_24.blue; -+ var->transp = def_rgbt_24.transp; -+ -+ break; -+ -+ case 25: -+ pixels_per_line = fbi->fb.var.xres; -+ nbytes = 4; -+ -+ var->red = def_rgbt_25.red; -+ var->green = def_rgbt_25.green; -+ var->blue = def_rgbt_25.blue; -+ var->transp = def_rgbt_25.transp; -+ -+ break; -+ } -+ -+ fbi->fb.fix.line_length = nbytes * pixels_per_line; -+ fbi->fb.fix.smem_len = fbi->fb.fix.line_length * fbi->fb.var.yres; -+ -+ fbi->map_size = PAGE_ALIGN(fbi->fb.fix.smem_len + PAGE_SIZE); -+ fbi->map_cpu = (unsigned long)dma_alloc_writecombine(NULL, fbi->map_size, -+ &fbi->map_dma, GFP_KERNEL ); -+ -+ if (!fbi->map_cpu) return -ENOMEM; -+ -+ fbi->screen_cpu = fbi->map_cpu + PAGE_SIZE; -+ fbi->screen_dma = fbi->map_dma + PAGE_SIZE; -+ -+ fbi->fb.fix.smem_start = fbi->screen_dma; -+ -+ /* setup dma descriptor */ -+ fbi->dma2 = (struct pxafb_dma_descriptor*) -+ (fbi->screen_cpu - sizeof(struct pxafb_dma_descriptor)); -+ -+ fbi->dma2->fdadr = (fbi->screen_dma - sizeof(struct pxafb_dma_descriptor)); -+ fbi->dma2->fsadr = fbi->screen_dma; -+ fbi->dma2->fidr = 0; -+ fbi->dma2->ldcmd = fbi->fb.fix.smem_len; -+ -+ return 0; -+} -+ -+static int overlay2fb_enable(struct fb_info *info) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info*) info; -+ unsigned long bpp2; -+ unsigned int xres, yres; -+ -+ if (!fbi->map_cpu) return -EINVAL; -+ -+ switch(fbi->fb.var.bits_per_pixel) { -+ case 16: -+ bpp2 = 0x4; -+ break; -+ case 18: -+ bpp2 = 0x6; -+ break; -+ case 19: -+ bpp2 = 0x8; -+ break; -+ case 24: -+ bpp2 = 0x9; -+ break; -+ case 25: -+ bpp2 = 0xa; -+ break; -+ default: -+ return -EINVAL; -+ } -+ -+ /* disable branch/start/end of frame interrupt */ -+ LCCR5 |= (LCCR5_IUM4 | LCCR5_IUM3 | LCCR5_IUM2 | -+ LCCR5_BSM4 | LCCR5_BSM3 | LCCR5_BSM2 | -+ LCCR5_EOFM4 | LCCR5_EOFM3 | LCCR5_EOFM2 | -+ LCCR5_SOFM4 | LCCR5_SOFM3 | LCCR5_SOFM2); -+ -+ if (fbi->format == 0) { -+ /* overlay2 RGB resolution, RGB and YUV have different xres value*/ -+ xres = fbi->fb.var.xres; -+ yres = fbi->fb.var.yres; -+ -+ OVL2C2 = (fbi->format << 20) | (fbi->ypos << 10) | fbi->xpos; -+ OVL2C1 = OVL2C1_O2EN | (bpp2 << 20) | ((yres-1)<<10) | (xres-1); -+ /* setup RGB DMA */ -+ if (fbi->state == C_DISABLE || fbi->state == C_BLANK) -+ FDADR2 = fbi->dma2->fdadr; -+ else -+ FBR2 = fbi->dma2->fdadr | 0x1; -+ } else { -+ /* overlay2 YUV resolution */ -+ xres = fbi->fb.fix.line_length; -+ yres = fbi->fb.var.yres; -+ -+ OVL2C2 = (fbi->format << 20) | (fbi->ypos << 10) | fbi->xpos; -+ OVL2C1 = OVL2C1_O2EN | (bpp2 << 20) | ((yres-1)<<10) | (xres-1); -+ -+ if (fbi->state == C_DISABLE || fbi->state == C_BLANK) { -+ FDADR2 = fbi->dma2->fdadr; -+ FDADR3 = fbi->dma3->fdadr; -+ FDADR4 = fbi->dma4->fdadr; -+ } else { -+ FBR2 = fbi->dma2->fdadr | 0x01; -+ FBR3 = fbi->dma3->fdadr | 0x01; -+ FBR4 = fbi->dma4->fdadr | 0x01; -+ } -+ } -+ -+ fbi->state = C_ENABLE; -+ return 0; -+} -+ -+static int overlay2fb_disable(struct fb_info *info) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info*)info; -+ int done; -+ -+ if (fbi->state == C_DISABLE) -+ return 0; -+ if (fbi->state == C_BLANK) { -+ fbi->state = C_DISABLE; -+ return 0; -+ } -+ -+ fbi->state = C_DISABLE; -+ -+ /* clear O2EN */ -+ OVL2C1 &= ~OVL2C1_O2EN; -+ -+ /* Make overlay2 can't disable/enable -+ * correctly sometimes. -+ */ -+ CLEAR_LCD_INTR(LCSR1, LCSR1_BS2); -+ -+ if (fbi->format == 0) -+ FBR2 = 0x3; -+ else { -+ FBR2 = 0x3; -+ FBR3 = 0x3; -+ FBR4 = 0x3; -+ } -+ -+ done = WAIT_FOR_LCD_INTR(LCSR1, LCSR1_BS2, 100); -+ -+ if (!done) { -+ pr_debug(KERN_INFO "%s: timeout\n", __FUNCTION__); -+ return -1; -+ } -+ return 0; -+} -+ -+static int overlay2fb_blank(int blank, struct fb_info *info) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info*) info; -+ int err=0; -+ -+ switch(blank) -+ { -+ case 0: -+ err = overlay2fb_enable(info); -+ if (err) { -+ fbi->state = C_DISABLE; -+ pxafb_set_ctrlr_state(fbi->basefb, C_REENABLE); -+ } -+ break; -+ case 1: -+ err = overlay2fb_disable(info); -+ if (err) { -+ fbi->state = C_DISABLE; -+ pxafb_set_ctrlr_state(fbi->basefb, C_REENABLE); -+ } -+ break; -+ default: -+ /* reserved */ -+ break; -+ } -+ -+ return err; -+} -+ -+ -+static int overlay2fb_check_var( struct fb_var_screeninfo *var, struct fb_info *info) -+{ -+ int xpos, ypos, xres, yres; -+ int format; -+ struct overlayfb_info *fbi=(struct overlayfb_info*)info; -+ -+ xres=yres=0; -+ -+ xpos = (var->nonstd & 0x3ff); -+ ypos = (var->nonstd >> 10) & 0x3ff; -+ format = (var->nonstd >>20) & 0x7; -+ -+ -+ /* Palnar YCbCr444, YCbCr422, YCbCr420 */ -+ if ( (format != 0x4) && (format != 0x3) && (format != 0x2) && (format !=0x0)) -+ return -EINVAL; -+ -+ /* dummy pixels */ -+ switch(format) { -+ case 0x0: /* RGB */ -+ xres = var->xres; -+ break; -+ case 0x2: /* 444 */ -+ xres = (var->xres + 0x3) & ~(0x3); -+ break; -+ case 0x3: /* 422 */ -+ xres = (var->xres + 0x7) & ~(0x7); -+ break; -+ case 0x4: /* 420 */ -+ xres = (var->xres + 0xf) & ~(0xf); -+ break; -+ } -+ yres = var->yres; -+ -+ if ( (xpos + xres) > fbi->basefb->fb.var.xres ) -+ return -EINVAL; -+ -+ if ( (ypos + yres) > fbi->basefb->fb.var.yres ) -+ return -EINVAL; -+ -+ fbi->old_var=*var; -+ -+ var->activate=FB_ACTIVATE_NOW; -+ -+ return 0; -+ -+} -+ -+ -+/* -+ * overlay2fb_set_var() -+ * -+ * var.nonstd is used as YCbCr format. -+ * var.red/green/blue is used as (Y/Cb/Cr) vector -+ */ -+ -+static int overlay2fb_set_par(struct fb_info *info) -+{ -+ unsigned int xpos, ypos; -+ int format, err; -+ -+ struct overlayfb_info *fbi=(struct overlayfb_info*)info; -+ struct fb_var_screeninfo *var = &fbi->fb.var; -+ -+ info->flags &= ~FBINFO_MISC_USEREVENT; -+ -+ if (fbi->state == C_BLANK) -+ return 0; -+ -+ if (fbi->state == C_DISABLE) -+ goto out1; -+ -+ if ( (var->xres == fbi->old_var.xres) && -+ (var->yres == fbi->old_var.yres) && -+ (var->bits_per_pixel == fbi->old_var.bits_per_pixel) && -+ (((var->nonstd>>20) & 0x7) == fbi->format) ) -+ goto out2; -+ -+out1: -+ xpos = var->nonstd & 0x3ff; -+ ypos = (var->nonstd>>10) & 0x3ff; -+ format = (var->nonstd>>20) & 0x7; -+ -+ -+ fbi->format = format; -+ if ( fbi->format==0 ) -+ err = overlay2fb_map_RGB_memory(info); -+ else -+ err = overlay2fb_map_YUV_memory(info); -+ -+ if (err) return err; -+ -+out2: -+ /* position */ -+ fbi->xpos = var->nonstd & 0x3ff; -+ fbi->ypos = (var->nonstd>>10) & 0x3ff; -+ -+ overlay2fb_enable(info); -+ -+ return 0; -+} -+ -+static struct fb_ops overlay2fb_ops = { -+ .owner = THIS_MODULE, -+ .fb_open = overlay2fb_open, -+ .fb_release = overlay2fb_release, -+ .fb_check_var = overlay2fb_check_var, -+ .fb_set_par = overlay2fb_set_par, -+ .fb_blank = overlay2fb_blank, -+ .fb_fillrect = cfb_fillrect, -+ .fb_copyarea = cfb_copyarea, -+ .fb_imageblit = cfb_imageblit, -+}; -+ -+/* Hardware cursor */ -+ -+/* Bulverde Cursor Modes */ -+struct cursorfb_mode{ -+ int xres; -+ int yres; -+ int bpp; -+}; -+ -+static struct cursorfb_mode cursorfb_modes[]={ -+ { 32, 32, 2}, -+ { 32, 32, 2}, -+ { 32, 32, 2}, -+ { 64, 64, 2}, -+ { 64, 64, 2}, -+ { 64, 64, 2}, -+ {128, 128, 1}, -+ {128, 128, 1} -+}; -+ -+static int cursorfb_enable(struct fb_info *info) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info*) info; -+ -+ if (!fbi->map_cpu) return -EINVAL; -+ -+ CCR &= ~CCR_CEN; -+ -+ /* set palette format -+ * -+ * FIXME: if only cursor uses palette -+ */ -+ LCCR4 = (LCCR4 & (~(0x3<<15))) | (0x1<<15); -+ -+ /* disable branch/start/end of frame interrupt */ -+ LCCR5 |= (LCCR5_IUM5 | LCCR5_BSM5 | LCCR5_EOFM5 | LCCR5_SOFM5); -+ -+ /* load palette and frame data */ -+ if (fbi->state == C_DISABLE) { -+ FDADR5 = fbi->dma5_pal->fdadr; -+ udelay(1); -+ FDADR5 = fbi->dma5_frame->fdadr; -+ udelay(1); -+ -+ } -+ else { -+ FBR5 = fbi->dma5_pal->fdadr | 0x1; -+ udelay(1); -+ FBR5 = fbi->dma5_frame->fdadr | 0x1; -+ udelay(1); -+ } -+ -+ CCR = CCR_CEN | (fbi->ypos << 15) | (fbi->xpos << 5) | (fbi->format); -+ -+ fbi->state = C_ENABLE; -+ -+ return 0; -+} -+ -+static int cursorfb_disable(struct fb_info *info) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info*)info; -+ int done, ret = 0; -+ -+ fbi->state = C_DISABLE; -+ -+ done = WAIT_FOR_LCD_INTR(LCSR1, LCSR1_BS5, 100); -+ if (!done) ret = -1; -+ -+ CCR &= ~CCR_CEN; -+ -+ return ret; -+} -+ -+static int cursorfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, -+ u_int trans, struct fb_info *info) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info *)info; -+ u_int val, ret = 1; -+ u_int *pal=(u_int*) fbi->palette_cpu; -+ -+ /* 25bit with Transparcy for 16bpp format */ -+ if (regno < fbi->palette_size) { -+ val = ((trans << 24) & 0x1000000); -+ val |= ((red << 16) & 0x0ff0000); -+ val |= ((green << 8 ) & 0x000ff00); -+ val |= ((blue << 0) & 0x00000ff); -+ -+ pal[regno] = val; -+ ret = 0; -+ } -+ return ret; -+} -+ -+int cursorfb_blank(int blank, struct fb_info *info) -+{ -+ switch(blank) -+ { -+ case 0: -+ cursorfb_enable(info); -+ break; -+ case 1: -+ cursorfb_disable(info); -+ break; -+ default: -+ /* reserved */ -+ break; -+ } -+ return 0; -+} -+ -+static int cursorfb_check_var( struct fb_var_screeninfo *var, struct fb_info *info) -+{ -+ int xpos, ypos, xres, yres; -+ int mode; -+ struct cursorfb_mode *cursor; -+ struct overlayfb_info *fbi=(struct overlayfb_info*)info; -+ -+ mode = var->nonstd & 0x7; -+ xpos = (var->nonstd>>5) & 0x3ff; -+ ypos = (var->nonstd>>15) & 0x3ff; -+ -+ if (mode>7 || mode <0 ) -+ return -EINVAL; -+ -+ cursor = cursorfb_modes + mode; -+ -+ xres = cursor->xres; -+ yres = cursor->yres; -+ -+ if ( (xpos + xres) > fbi->basefb->fb.var.xres ) -+ return -EINVAL; -+ -+ if ( (ypos + yres) > fbi->basefb->fb.var.yres ) -+ return -EINVAL; -+ -+ return 0; -+ -+} -+ -+static int cursorfb_set_par(struct fb_info *info) -+{ -+ struct overlayfb_info *fbi = (struct overlayfb_info*) info; -+ struct fb_var_screeninfo *var = &fbi->fb.var; -+ struct cursorfb_mode *cursor; -+ int mode, xpos, ypos; -+ int err; -+ -+ info->flags &= ~FBINFO_MISC_USEREVENT; -+ -+ mode = var->nonstd & 0x7; -+ xpos = (var->nonstd>>5) & 0x3ff; -+ ypos = (var->nonstd>>15) & 0x3ff; -+ -+ if (mode != fbi->format) { -+ cursor = cursorfb_modes + mode; -+ -+ /* update "var" info */ -+ fbi->fb.var.xres = cursor->xres; -+ fbi->fb.var.yres = cursor->yres; -+ fbi->fb.var.bits_per_pixel = cursor->bpp; -+ -+ /* alloc video memory -+ * -+ * 4k is engouh for 128x128x1 cursor, -+ * - 2k for cursor pixels, -+ * - 2k for palette data, plus 2 dma descriptor -+ */ -+ if (!fbi->map_cpu) { -+ fbi->map_size = PAGE_SIZE; -+ fbi->map_cpu = (unsigned long)dma_alloc_writecombine(NULL, fbi->map_size, -+ &fbi->map_dma, GFP_KERNEL ); -+ if (!fbi->map_cpu) return -ENOMEM; -+ } -+ -+ cursor = cursorfb_modes + mode; -+ -+ /* update overlay & fix "info" */ -+ fbi->screen_cpu = fbi->map_cpu; -+ fbi->palette_cpu = fbi->map_cpu + (PAGE_SIZE/2); -+ fbi->screen_dma = fbi->map_dma; -+ fbi->palette_dma = fbi->map_dma + (PAGE_SIZE/2); -+ -+ fbi->format = mode; -+ fbi->palette_size = (1<bpp); -+ fbi->fb.fix.smem_start = fbi->screen_dma; -+ fbi->fb.fix.smem_len = cursor->xres * cursor->yres * cursor->bpp / 8; -+ fbi->fb.fix.line_length = cursor->xres * cursor->bpp / 8; -+ -+ fbi->dma5_pal = (struct pxafb_dma_descriptor*)(fbi->map_cpu + PAGE_SIZE - 16 ); -+ fbi->dma5_pal->fdadr = (fbi->map_dma + PAGE_SIZE - 16); -+ fbi->dma5_pal->fsadr = fbi->palette_dma; -+ fbi->dma5_pal->fidr = 0; -+ fbi->dma5_pal->ldcmd = (fbi->palette_size<<2) | LDCMD_PAL; -+ -+ fbi->dma5_frame = (struct pxafb_dma_descriptor*)(fbi->map_cpu + PAGE_SIZE - 32 ); -+ fbi->dma5_frame->fdadr = (fbi->map_dma + PAGE_SIZE - 32); -+ fbi->dma5_frame->fsadr = fbi->screen_dma; -+ fbi->dma5_frame->fidr = 0; -+ fbi->dma5_frame->ldcmd = fbi->fb.fix.smem_len; -+ -+ /* alloc & set default cmap */ -+ err = fb_alloc_cmap(&fbi->fb.cmap, fbi->palette_size, 0); -+ if (err) return err; -+ err = fb_set_cmap(&fbi->fb.cmap, info); -+ if (err) return err; -+ } -+ -+ /* update overlay info */ -+ if ( (xpos != fbi->xpos) || (ypos != fbi->ypos) ) { -+ fbi->xpos = xpos; -+ fbi->ypos = ypos; -+ } -+ -+ cursorfb_enable(info); -+ pxafb_set_ctrlr_state(fbi->basefb, C_REENABLE); -+ -+ return 0; -+} -+ -+static struct fb_ops cursorfb_ops = { -+ .owner = THIS_MODULE, -+ .fb_check_var = cursorfb_check_var, -+ .fb_set_par = cursorfb_set_par, -+ .fb_blank = cursorfb_blank, -+ .fb_fillrect = cfb_fillrect, -+ .fb_copyarea = cfb_copyarea, -+ .fb_imageblit = cfb_imageblit, -+ .fb_setcolreg = cursorfb_setcolreg, -+}; -+ -+static struct overlayfb_info * __init overlay1fb_init_fbinfo(void) -+{ -+ struct overlayfb_info *fbi; -+ -+ fbi = kmalloc(sizeof(struct overlayfb_info) + sizeof(u16) * 16, GFP_KERNEL); -+ if (!fbi) -+ return NULL; -+ -+ memset(fbi, 0, sizeof(struct overlayfb_info) ); -+ -+ fbi->refcount = 0; -+ init_MUTEX(&fbi->mutex); -+ -+ strcpy(fbi->fb.fix.id, "overlay1"); -+ -+ fbi->fb.fix.type = FB_TYPE_PACKED_PIXELS; -+ fbi->fb.fix.type_aux = 0; -+ fbi->fb.fix.xpanstep = 0; -+ fbi->fb.fix.ypanstep = 0; -+ fbi->fb.fix.ywrapstep = 0; -+ fbi->fb.fix.accel = FB_ACCEL_NONE; -+ -+ fbi->fb.var.nonstd = 0; -+ fbi->fb.var.activate = FB_ACTIVATE_NOW; -+ fbi->fb.var.height = -1; -+ fbi->fb.var.width = -1; -+ fbi->fb.var.accel_flags = 0; -+ fbi->fb.var.vmode = FB_VMODE_NONINTERLACED; -+ -+ -+ fbi->fb.fbops = &overlay1fb_ops; -+ fbi->fb.flags = FBINFO_FLAG_DEFAULT; -+ fbi->fb.node = -1; -+ fbi->fb.pseudo_palette = NULL; -+ -+ fbi->xpos = 0; -+ fbi->ypos = 0; -+ fbi->format = -1; -+ fbi->state = C_DISABLE; -+ -+ return fbi; -+} -+ -+static struct overlayfb_info * __init overlay2fb_init_fbinfo(void) -+{ -+ struct overlayfb_info *fbi; -+ -+ fbi = kmalloc(sizeof(struct overlayfb_info) + sizeof(u16) * 16, GFP_KERNEL); -+ if (!fbi) -+ return NULL; -+ -+ memset(fbi, 0, sizeof(struct overlayfb_info) ); -+ -+ fbi->refcount = 0; -+ init_MUTEX(&fbi->mutex); -+ -+ strcpy(fbi->fb.fix.id, "overlay2"); -+ -+ fbi->fb.fix.type = FB_TYPE_PACKED_PIXELS; -+ fbi->fb.fix.type_aux = 0; -+ fbi->fb.fix.xpanstep = 0; -+ fbi->fb.fix.ypanstep = 0; -+ fbi->fb.fix.ywrapstep = 0; -+ fbi->fb.fix.accel = FB_ACCEL_NONE; -+ -+ fbi->fb.var.nonstd = 0; -+ fbi->fb.var.activate = FB_ACTIVATE_NOW; -+ fbi->fb.var.height = -1; -+ fbi->fb.var.width = -1; -+ fbi->fb.var.accel_flags = 0; -+ fbi->fb.var.vmode = FB_VMODE_NONINTERLACED; -+ -+ fbi->fb.fbops = &overlay2fb_ops; -+ fbi->fb.flags = FBINFO_FLAG_DEFAULT; -+ fbi->fb.node = -1; -+ fbi->fb.pseudo_palette = NULL; -+ -+ fbi->xpos = 0; -+ fbi->ypos = 0; -+ fbi->format = -1; -+ fbi->state = C_DISABLE; -+ -+ return fbi; -+} -+ -+static struct overlayfb_info * __init cursorfb_init_fbinfo(void) -+{ -+ struct overlayfb_info *fbi; -+ -+ fbi = kmalloc(sizeof(struct overlayfb_info) + sizeof(u16) * 16, GFP_KERNEL); -+ if (!fbi) -+ return NULL; -+ -+ memset(fbi, 0, sizeof(struct overlayfb_info) ); -+ -+ fbi->refcount = 0; -+ init_MUTEX(&fbi->mutex); -+ -+ strcpy(fbi->fb.fix.id, "cursor"); -+ -+ fbi->fb.fix.type = FB_TYPE_PACKED_PIXELS; -+ fbi->fb.fix.type_aux = 0; -+ fbi->fb.fix.xpanstep = 0; -+ fbi->fb.fix.ypanstep = 0; -+ fbi->fb.fix.ywrapstep = 0; -+ fbi->fb.fix.accel = FB_ACCEL_NONE; -+ -+ fbi->fb.var.nonstd = 0; -+ fbi->fb.var.activate = FB_ACTIVATE_NOW; -+ fbi->fb.var.height = -1; -+ fbi->fb.var.width = -1; -+ fbi->fb.var.accel_flags = 0; -+ fbi->fb.var.vmode = FB_VMODE_NONINTERLACED; -+ -+ fbi->fb.fbops = &cursorfb_ops; -+ fbi->fb.flags = FBINFO_FLAG_DEFAULT; -+ fbi->fb.node = -1; -+ fbi->fb.pseudo_palette = NULL; -+ -+ -+ fbi->xpos = 0; -+ fbi->ypos = 0; -+ fbi->format = -1; -+ fbi->state = C_DISABLE; -+ -+ return fbi; -+} -+ -+ -+void pxa_set_overlay_ctrlr_state(struct pxafb_info *fbi, u_int state) -+{ -+ switch (state) { -+ case C_DISABLE: -+ DISABLE_OVERLAYS(fbi); -+ break; -+ case C_ENABLE: -+ ENABLE_OVERLAYS(fbi); -+ break; -+ case C_BLANK: -+ BLANK_OVERLAYS(fbi); -+ break; -+ case C_UNBLANK: -+ UNBLANK_OVERLAYS(fbi); -+ break; -+ default: -+ break; -+ } -+} -+ -+static int is_pxafb_device(struct device * dev, void * data) -+{ -+ struct platform_device *pdev = container_of(dev, struct platform_device, dev); -+ -+ return (strncmp(pdev->name, "pxa2xx-fb", 9) == 0); -+} -+ -+static int __devinit pxafb_overlay_init(void) -+{ -+ int ret; -+ struct overlayfb_info *overlay1fb, *overlay2fb, *cursorfb; -+ struct pxafb_info *fbi; -+ struct device *dev; -+ -+ ret = -1; -+ overlay1fb = overlay2fb = cursorfb = NULL; -+ fbi = NULL; -+ -+ dev = bus_find_device(&platform_bus_type, NULL, NULL, is_pxafb_device); -+ if (!dev) { -+ printk(KERN_INFO "Base framebuffer not exists, failed to load overlay driver!\n"); -+ return ret; -+ } -+ -+ fbi = dev_get_drvdata(dev); -+ if (fbi == NULL) { -+ printk(KERN_INFO "Base framebuffer not initialized, failed to load overlay driver!\n"); -+ return ret; -+ } -+ -+ /* Overlay 1 windows */ -+ overlay1fb = overlay1fb_init_fbinfo(); -+ -+ if (!overlay1fb) { -+ ret = -ENOMEM; -+ printk("overlay1fb_init_fbinfo failed\n"); -+ goto failed; -+ } -+ -+ ret = register_framebuffer(&overlay1fb->fb); -+ if (ret < 0) -+ goto failed; -+ -+ /* Overlay 2 window */ -+ overlay2fb = overlay2fb_init_fbinfo(); -+ -+ if (!overlay2fb) { -+ ret = -ENOMEM; -+ printk("overlay2fb_init_fbinfo failed\n"); -+ goto failed; -+ } -+ -+ ret = register_framebuffer(&overlay2fb->fb); -+ if (ret < 0) goto failed; -+ -+ /* Hardware cursor window */ -+ cursorfb = cursorfb_init_fbinfo(); -+ -+ if (!cursorfb) { -+ ret = -ENOMEM; -+ printk("cursorfb_init_fbinfo failed\n"); -+ goto failed; -+ } -+ -+ ret = register_framebuffer(&cursorfb->fb); -+ if (ret < 0) goto failed; -+ -+ -+ /* set refernce to Overlays */ -+ fbi->overlay1fb = overlay1fb; -+ fbi->overlay2fb = overlay2fb; -+ fbi->cursorfb = cursorfb; -+ fbi->set_overlay_ctrlr_state=pxa_set_overlay_ctrlr_state; -+ -+ /* set refernce to BaseFrame */ -+ overlay1fb->basefb = fbi; -+ overlay2fb->basefb = fbi; -+ cursorfb->basefb = fbi; -+ -+ printk(KERN_INFO "Load PXA Overlay driver successfully!\n"); -+ -+ return 0; -+ -+failed: -+ if (overlay1fb) -+ kfree(overlay1fb); -+ if (overlay2fb) -+ kfree(overlay2fb); -+ if (cursorfb) -+ kfree(cursorfb); -+ printk(KERN_INFO "Load PXA Overlay driver failed!\n"); -+ return ret; -+} -+ -+static void __exit pxafb_overlay_exit(void) -+{ -+ struct pxafb_info *fbi; -+ struct device *dev; -+ -+ dev = bus_find_device(&platform_bus_type, NULL, NULL, is_pxafb_device); -+ if (!dev) -+ return; -+ -+ fbi = dev_get_drvdata(dev); -+ if (!fbi) -+ return; -+ -+ if (fbi->overlay1fb) { -+ unregister_framebuffer(&(fbi->overlay1fb->fb)); -+ kfree(fbi->overlay1fb); -+ fbi->overlay1fb = NULL; -+ } -+ -+ if (fbi->overlay2fb) { -+ unregister_framebuffer(&(fbi->overlay2fb->fb)); -+ kfree(fbi->overlay2fb); -+ fbi->overlay2fb = NULL; -+ } -+ -+ if (fbi->cursorfb) { -+ unregister_framebuffer(&(fbi->cursorfb->fb)); -+ kfree(fbi->cursorfb); -+ fbi->cursorfb = NULL; -+ } -+ -+ fbi->set_overlay_ctrlr_state = NULL; -+ -+ printk(KERN_INFO "Unload PXA Overlay driver successfully!\n"); -+ return; -+} -+ -+ -+module_init(pxafb_overlay_init); -+module_exit(pxafb_overlay_exit); -+ -+MODULE_DESCRIPTION("Loadable framebuffer overlay driver for PXA"); -+MODULE_LICENSE("GPL"); -+ ---- linux-2.6.24-rc1.orig/include/asm-arm/arch-pxa/pxa-regs.h -+++ linux-2.6.24-rc1/include/asm-arm/arch-pxa/pxa-regs.h -@@ -789,11 +789,18 @@ - #define UDC_INT_PACKETCMP (0x1) - - #define UDCICR_INT(n,intr) (((intr) & 0x03) << (((n) & 0x0F) * 2)) -+/* Older defines, do not use. */ - #define UDCICR1_IECC (1 << 31) /* IntEn - Configuration Change */ - #define UDCICR1_IESOF (1 << 30) /* IntEn - Start of Frame */ - #define UDCICR1_IERU (1 << 29) /* IntEn - Resume */ - #define UDCICR1_IESU (1 << 28) /* IntEn - Suspend */ - #define UDCICR1_IERS (1 << 27) /* IntEn - Reset */ -+/* New defines. */ -+#define UDCISR1_IRCC (1 << 31) /* IntEn - Configuration Change */ -+#define UDCISR1_IRSOF (1 << 30) /* IntEn - Start of Frame */ -+#define UDCISR1_IRRU (1 << 29) /* IntEn - Resume */ -+#define UDCISR1_IRSU (1 << 28) /* IntEn - Suspend */ -+#define UDCISR1_IRRS (1 << 27) /* IntEn - Reset */ - - #define UDCISR0 __REG(0x4060000C) /* UDC Interrupt Status Register 0 */ - #define UDCISR1 __REG(0x40600010) /* UDC Interrupt Status Register 1 */ -@@ -1827,6 +1834,8 @@ - #define DFBR0 __REG(0x44000020) /* DMA Channel 0 Frame Branch Register */ - #define DFBR1 __REG(0x44000024) /* DMA Channel 1 Frame Branch Register */ - #define LCSR __REG(0x44000038) /* LCD Controller Status Register */ -+#define LCSR0 __REG(0x44000038) /* LCD Controller Status Register */ -+#define LCSR1 __REG(0x44000034) /* LCD Controller Status Register */ - #define LIIDR __REG(0x4400003C) /* LCD Controller Interrupt ID Register */ - #define TMEDRGBR __REG(0x44000040) /* TMED RGB Seed Register */ - #define TMEDCR __REG(0x44000044) /* TMED Control Register */ -@@ -1836,6 +1845,10 @@ - #define LCCR3_4BPP (2 << 24) - #define LCCR3_8BPP (3 << 24) - #define LCCR3_16BPP (4 << 24) -+#define LCCR3_18BPP (6 << 24) -+#define LCCR3_19BPP (8 << 24) -+#define LCCR3_24BPP (9 << 24) -+#define LCCR3_25BPP (10<< 24) - - #define LCCR3_PDFOR_0 (0 << 30) - #define LCCR3_PDFOR_1 (1 << 30) -@@ -2010,6 +2023,104 @@ - - #define LDCMD_PAL (1 << 26) /* instructs DMA to load palette buffer */ - -+/* Overlay1 & Overlay2 & Hardware Cursor */ -+#define LCSR1_SOF1 (1 << 0) -+#define LCSR1_SOF2 (1 << 1) -+#define LCSR1_SOF3 (1 << 2) -+#define LCSR1_SOF4 (1 << 3) -+#define LCSR1_SOF5 (1 << 4) -+#define LCSR1_SOF6 (1 << 5) -+ -+#define LCSR1_EOF1 (1 << 8) -+#define LCSR1_EOF2 (1 << 9) -+#define LCSR1_EOF3 (1 << 10) -+#define LCSR1_EOF4 (1 << 11) -+#define LCSR1_EOF5 (1 << 12) -+#define LCSR1_EOF6 (1 << 13) -+ -+#define LCSR1_BS1 (1 << 16) -+#define LCSR1_BS2 (1 << 17) -+#define LCSR1_BS3 (1 << 18) -+#define LCSR1_BS4 (1 << 19) -+#define LCSR1_BS5 (1 << 20) -+#define LCSR1_BS6 (1 << 21) -+ -+#define LCSR1_IU2 (1 << 25) -+#define LCSR1_IU3 (1 << 26) -+#define LCSR1_IU4 (1 << 27) -+#define LCSR1_IU5 (1 << 28) -+#define LCSR1_IU6 (1 << 29) -+ -+#define LDCMD_SOFINT (1 << 22) -+#define LDCMD_EOFINT (1 << 21) -+ -+ -+#define LCCR5_SOFM1 (1<<0) /* Start Of Frame Mask for Overlay 1 (channel 1) */ -+#define LCCR5_SOFM2 (1<<1) /* Start Of Frame Mask for Overlay 2 (channel 2) */ -+#define LCCR5_SOFM3 (1<<2) /* Start Of Frame Mask for Overlay 2 (channel 3) */ -+#define LCCR5_SOFM4 (1<<3) /* Start Of Frame Mask for Overlay 2 (channel 4) */ -+#define LCCR5_SOFM5 (1<<4) /* Start Of Frame Mask for cursor (channel 5) */ -+#define LCCR5_SOFM6 (1<<5) /* Start Of Frame Mask for command data (channel 6) */ -+ -+#define LCCR5_EOFM1 (1<<8) /* End Of Frame Mask for Overlay 1 (channel 1) */ -+#define LCCR5_EOFM2 (1<<9) /* End Of Frame Mask for Overlay 2 (channel 2) */ -+#define LCCR5_EOFM3 (1<<10) /* End Of Frame Mask for Overlay 2 (channel 3) */ -+#define LCCR5_EOFM4 (1<<11) /* End Of Frame Mask for Overlay 2 (channel 4) */ -+#define LCCR5_EOFM5 (1<<12) /* End Of Frame Mask for cursor (channel 5) */ -+#define LCCR5_EOFM6 (1<<13) /* End Of Frame Mask for command data (channel 6) */ -+ -+#define LCCR5_BSM1 (1<<16) /* Branch mask for Overlay 1 (channel 1) */ -+#define LCCR5_BSM2 (1<<17) /* Branch mask for Overlay 2 (channel 2) */ -+#define LCCR5_BSM3 (1<<18) /* Branch mask for Overlay 2 (channel 3) */ -+#define LCCR5_BSM4 (1<<19) /* Branch mask for Overlay 2 (channel 4) */ -+#define LCCR5_BSM5 (1<<20) /* Branch mask for cursor (channel 5) */ -+#define LCCR5_BSM6 (1<<21) /* Branch mask for data command (channel 6) */ -+ -+#define LCCR5_IUM1 (1<<24) /* Input FIFO Underrun Mask for Overlay 1 */ -+#define LCCR5_IUM2 (1<<25) /* Input FIFO Underrun Mask for Overlay 2 */ -+#define LCCR5_IUM3 (1<<26) /* Input FIFO Underrun Mask for Overlay 2 */ -+#define LCCR5_IUM4 (1<<27) /* Input FIFO Underrun Mask for Overlay 2 */ -+#define LCCR5_IUM5 (1<<28) /* Input FIFO Underrun Mask for cursor */ -+#define LCCR5_IUM6 (1<<29) /* Input FIFO Underrun Mask for data command */ -+ -+#define OVL1C1_O1EN (1<<31) /* Enable bit for Overlay 1 */ -+#define OVL2C1_O2EN (1<<31) /* Enable bit for Overlay 2 */ -+#define CCR_CEN (1<<31) /* Enable bit for Cursor */ -+ -+/* LCD registers */ -+#define LCCR4 __REG(0x44000010) /* LCD Controller Control Register 4 */ -+#define LCCR5 __REG(0x44000014) /* LCD Controller Control Register 5 */ -+#define FBR0 __REG(0x44000020) /* DMA Channel 0 Frame Branch Register */ -+#define FBR1 __REG(0x44000024) /* DMA Channel 1 Frame Branch Register */ -+#define FBR2 __REG(0x44000028) /* DMA Channel 2 Frame Branch Register */ -+#define FBR3 __REG(0x4400002C) /* DMA Channel 3 Frame Branch Register */ -+#define FBR4 __REG(0x44000030) /* DMA Channel 4 Frame Branch Register */ -+#define FDADR2 __REG(0x44000220) /* DMA Channel 2 Frame Descriptor Address Register */ -+#define FSADR2 __REG(0x44000224) /* DMA Channel 2 Frame Source Address Register */ -+#define FIDR2 __REG(0x44000228) /* DMA Channel 2 Frame ID Register */ -+#define LDCMD2 __REG(0x4400022C) /* DMA Channel 2 Command Register */ -+#define FDADR3 __REG(0x44000230) /* DMA Channel 3 Frame Descriptor Address Register */ -+#define FSADR3 __REG(0x44000234) /* DMA Channel 3 Frame Source Address Register */ -+#define FIDR3 __REG(0x44000238) /* DMA Channel 3 Frame ID Register */ -+#define LDCMD3 __REG(0x4400023C) /* DMA Channel 3 Command Register */ -+#define FDADR4 __REG(0x44000240) /* DMA Channel 4 Frame Descriptor Address Register */ -+#define FSADR4 __REG(0x44000244) /* DMA Channel 4 Frame Source Address Register */ -+#define FIDR4 __REG(0x44000248) /* DMA Channel 4 Frame ID Register */ -+#define LDCMD4 __REG(0x4400024C) /* DMA Channel 4 Command Register */ -+#define FDADR5 __REG(0x44000250) /* DMA Channel 5 Frame Descriptor Address Register */ -+#define FSADR5 __REG(0x44000254) /* DMA Channel 5 Frame Source Address Register */ -+#define FIDR5 __REG(0x44000258) /* DMA Channel 5 Frame ID Register */ -+#define LDCMD5 __REG(0x4400025C) /* DMA Channel 5 Command Register */ -+ -+#define OVL1C1 __REG(0x44000050) /* Overlay 1 Control Register 1 */ -+#define OVL1C2 __REG(0x44000060) /* Overlay 1 Control Register 2 */ -+#define OVL2C1 __REG(0x44000070) /* Overlay 2 Control Register 1 */ -+#define OVL2C2 __REG(0x44000080) /* Overlay 2 Control Register 2 */ -+#define CCR __REG(0x44000090) /* Cursor Control Register */ -+ -+#define FBR5 __REG(0x44000110) /* DMA Channel 5 Frame Branch Register */ -+#define FBR6 __REG(0x44000114) /* DMA Channel 6 Frame Branch Register */ -+ - /* - * Memory controller - */ diff --git a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/squashfs3.0-2.6.15.patch b/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/squashfs3.0-2.6.15.patch deleted file mode 100644 index a210afcaf..000000000 --- a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/squashfs3.0-2.6.15.patch +++ /dev/null @@ -1,4189 +0,0 @@ - fs/Kconfig | 65 + - fs/Makefile | 1 - fs/squashfs/Makefile | 7 - fs/squashfs/inode.c | 2122 +++++++++++++++++++++++++++++++++++++++++ - fs/squashfs/squashfs.h | 86 + - fs/squashfs/squashfs2_0.c | 757 ++++++++++++++ - include/linux/squashfs_fs.h | 911 +++++++++++++++++ - include/linux/squashfs_fs_i.h | 45 - include/linux/squashfs_fs_sb.h | 74 + - init/do_mounts_rd.c | 13 - 10 files changed, 4081 insertions(+) - -Index: linux-2.6.22/fs/Kconfig -=================================================================== ---- linux-2.6.22.orig/fs/Kconfig 2007-08-28 21:56:32.000000000 +0100 -+++ linux-2.6.22/fs/Kconfig 2007-08-28 21:56:34.000000000 +0100 -@@ -1394,6 +1394,71 @@ config CRAMFS - - If unsure, say N. - -+config SQUASHFS -+ tristate "SquashFS 3.0 - Squashed file system support" -+ select ZLIB_INFLATE -+ help -+ Saying Y here includes support for SquashFS 3.0 (a Compressed Read-Only File -+ System). Squashfs is a highly compressed read-only filesystem for Linux. -+ It uses zlib compression to compress both files, inodes and directories. -+ Inodes in the system are very small and all blocks are packed to minimise -+ data overhead. Block sizes greater than 4K are supported up to a maximum of 64K. -+ SquashFS 3.0 supports 64 bit filesystems and files (larger than 4GB), full -+ uid/gid information, hard links and timestamps. -+ -+ Squashfs is intended for general read-only filesystem use, for archival -+ use (i.e. in cases where a .tar.gz file may be used), and in embedded -+ systems where low overhead is needed. Further information and filesystem tools -+ are available from http://squashfs.sourceforge.net. -+ -+ If you want to compile this as a module ( = code which can be -+ inserted in and removed from the running kernel whenever you want), -+ say M here and read . The module -+ will be called squashfs. Note that the root file system (the one -+ containing the directory /) cannot be compiled as a module. -+ -+ If unsure, say N. -+ -+config SQUASHFS_EMBEDDED -+ -+ bool "Additional options for memory-constrained systems" -+ depends on SQUASHFS -+ default n -+ help -+ Saying Y here allows you to specify cache sizes and how Squashfs -+ allocates memory. This is only intended for memory constrained -+ systems. -+ -+ If unsure, say N. -+ -+config SQUASHFS_FRAGMENT_CACHE_SIZE -+ int "Number of fragments cached" if SQUASHFS_EMBEDDED -+ depends on SQUASHFS -+ default "3" -+ help -+ By default SquashFS caches the last 3 fragments read from -+ the filesystem. Increasing this amount may mean SquashFS -+ has to re-read fragments less often from disk, at the expense -+ of extra system memory. Decreasing this amount will mean -+ SquashFS uses less memory at the expense of extra reads from disk. -+ -+ Note there must be at least one cached fragment. Anything -+ much more than three will probably not make much difference. -+ -+config SQUASHFS_VMALLOC -+ bool "Use Vmalloc rather than Kmalloc" if SQUASHFS_EMBEDDED -+ depends on SQUASHFS -+ default n -+ help -+ By default SquashFS uses kmalloc to obtain fragment cache memory. -+ Kmalloc memory is the standard kernel allocator, but it can fail -+ on memory constrained systems. Because of the way Vmalloc works, -+ Vmalloc can succeed when kmalloc fails. Specifying this option -+ will make SquashFS always use Vmalloc to allocate the -+ fragment cache memory. -+ -+ If unsure, say N. -+ - config VXFS_FS - tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)" - depends on BLOCK -Index: linux-2.6.22/fs/Makefile -=================================================================== ---- linux-2.6.22.orig/fs/Makefile 2007-08-28 21:54:14.000000000 +0100 -+++ linux-2.6.22/fs/Makefile 2007-08-28 21:56:34.000000000 +0100 -@@ -72,6 +72,7 @@ obj-$(CONFIG_JBD) += jbd/ - obj-$(CONFIG_JBD2) += jbd2/ - obj-$(CONFIG_EXT2_FS) += ext2/ - obj-$(CONFIG_CRAMFS) += cramfs/ -+obj-$(CONFIG_SQUASHFS) += squashfs/ - obj-$(CONFIG_RAMFS) += ramfs/ - obj-$(CONFIG_HUGETLBFS) += hugetlbfs/ - obj-$(CONFIG_CODA_FS) += coda/ -Index: linux-2.6.22/fs/squashfs/inode.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/fs/squashfs/inode.c 2007-08-28 22:12:03.000000000 +0100 -@@ -0,0 +1,2122 @@ -+/* -+ * Squashfs - a compressed read only filesystem for Linux -+ * -+ * Copyright (c) 2002, 2003, 2004, 2005, 2006 -+ * Phillip Lougher -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version 2, -+ * or (at your option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -+ * -+ * inode.c -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include "squashfs.h" -+ -+static void squashfs_put_super(struct super_block *); -+static int squashfs_statfs(struct dentry *, struct kstatfs *); -+static int squashfs_symlink_readpage(struct file *file, struct page *page); -+static int squashfs_readpage(struct file *file, struct page *page); -+static int squashfs_readpage4K(struct file *file, struct page *page); -+static int squashfs_readdir(struct file *, void *, filldir_t); -+static struct inode *squashfs_alloc_inode(struct super_block *sb); -+static void squashfs_destroy_inode(struct inode *inode); -+static int init_inodecache(void); -+static void destroy_inodecache(void); -+static struct dentry *squashfs_lookup(struct inode *, struct dentry *, -+ struct nameidata *); -+static struct inode *squashfs_iget(struct super_block *s, squashfs_inode_t inode); -+static long long read_blocklist(struct inode *inode, int index, -+ int readahead_blks, char *block_list, -+ unsigned short **block_p, unsigned int *bsize); -+static int squashfs_get_sb(struct file_system_type *, int, -+ const char *, void *, struct vfsmount *); -+ -+ -+static z_stream stream; -+ -+static struct file_system_type squashfs_fs_type = { -+ .owner = THIS_MODULE, -+ .name = "squashfs", -+ .get_sb = squashfs_get_sb, -+ .kill_sb = kill_block_super, -+ .fs_flags = FS_REQUIRES_DEV -+}; -+ -+static unsigned char squashfs_filetype_table[] = { -+ DT_UNKNOWN, DT_DIR, DT_REG, DT_LNK, DT_BLK, DT_CHR, DT_FIFO, DT_SOCK -+}; -+ -+static struct super_operations squashfs_ops = { -+ .alloc_inode = squashfs_alloc_inode, -+ .destroy_inode = squashfs_destroy_inode, -+ .statfs = squashfs_statfs, -+ .put_super = squashfs_put_super, -+}; -+ -+SQSH_EXTERN struct address_space_operations squashfs_symlink_aops = { -+ .readpage = squashfs_symlink_readpage -+}; -+ -+SQSH_EXTERN struct address_space_operations squashfs_aops = { -+ .readpage = squashfs_readpage -+}; -+ -+SQSH_EXTERN struct address_space_operations squashfs_aops_4K = { -+ .readpage = squashfs_readpage4K -+}; -+ -+static struct file_operations squashfs_dir_ops = { -+ .read = generic_read_dir, -+ .readdir = squashfs_readdir -+}; -+ -+SQSH_EXTERN struct inode_operations squashfs_dir_inode_ops = { -+ .lookup = squashfs_lookup -+}; -+ -+ -+static struct buffer_head *get_block_length(struct super_block *s, -+ int *cur_index, int *offset, int *c_byte) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ unsigned short temp; -+ struct buffer_head *bh; -+ -+ if (!(bh = sb_bread(s, *cur_index))) -+ goto out; -+ -+ if (msblk->devblksize - *offset == 1) { -+ if (msblk->swap) -+ ((unsigned char *) &temp)[1] = *((unsigned char *) -+ (bh->b_data + *offset)); -+ else -+ ((unsigned char *) &temp)[0] = *((unsigned char *) -+ (bh->b_data + *offset)); -+ brelse(bh); -+ if (!(bh = sb_bread(s, ++(*cur_index)))) -+ goto out; -+ if (msblk->swap) -+ ((unsigned char *) &temp)[0] = *((unsigned char *) -+ bh->b_data); -+ else -+ ((unsigned char *) &temp)[1] = *((unsigned char *) -+ bh->b_data); -+ *c_byte = temp; -+ *offset = 1; -+ } else { -+ if (msblk->swap) { -+ ((unsigned char *) &temp)[1] = *((unsigned char *) -+ (bh->b_data + *offset)); -+ ((unsigned char *) &temp)[0] = *((unsigned char *) -+ (bh->b_data + *offset + 1)); -+ } else { -+ ((unsigned char *) &temp)[0] = *((unsigned char *) -+ (bh->b_data + *offset)); -+ ((unsigned char *) &temp)[1] = *((unsigned char *) -+ (bh->b_data + *offset + 1)); -+ } -+ *c_byte = temp; -+ *offset += 2; -+ } -+ -+ if (SQUASHFS_CHECK_DATA(msblk->sblk.flags)) { -+ if (*offset == msblk->devblksize) { -+ brelse(bh); -+ if (!(bh = sb_bread(s, ++(*cur_index)))) -+ goto out; -+ *offset = 0; -+ } -+ if (*((unsigned char *) (bh->b_data + *offset)) != -+ SQUASHFS_MARKER_BYTE) { -+ ERROR("Metadata block marker corrupt @ %x\n", -+ *cur_index); -+ brelse(bh); -+ goto out; -+ } -+ (*offset)++; -+ } -+ return bh; -+ -+out: -+ return NULL; -+} -+ -+ -+SQSH_EXTERN unsigned int squashfs_read_data(struct super_block *s, char *buffer, -+ long long index, unsigned int length, -+ long long *next_index) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct buffer_head *bh[((SQUASHFS_FILE_MAX_SIZE - 1) >> -+ msblk->devblksize_log2) + 2]; -+ unsigned int offset = index & ((1 << msblk->devblksize_log2) - 1); -+ unsigned int cur_index = index >> msblk->devblksize_log2; -+ int bytes, avail_bytes, b = 0, k; -+ char *c_buffer; -+ unsigned int compressed; -+ unsigned int c_byte = length; -+ -+ if (c_byte) { -+ bytes = msblk->devblksize - offset; -+ compressed = SQUASHFS_COMPRESSED_BLOCK(c_byte); -+ c_buffer = compressed ? msblk->read_data : buffer; -+ c_byte = SQUASHFS_COMPRESSED_SIZE_BLOCK(c_byte); -+ -+ TRACE("Block @ 0x%llx, %scompressed size %d\n", index, compressed -+ ? "" : "un", (unsigned int) c_byte); -+ -+ if (!(bh[0] = sb_getblk(s, cur_index))) -+ goto block_release; -+ -+ for (b = 1; bytes < c_byte; b++) { -+ if (!(bh[b] = sb_getblk(s, ++cur_index))) -+ goto block_release; -+ bytes += msblk->devblksize; -+ } -+ ll_rw_block(READ, b, bh); -+ } else { -+ if (!(bh[0] = get_block_length(s, &cur_index, &offset, -+ &c_byte))) -+ goto read_failure; -+ -+ bytes = msblk->devblksize - offset; -+ compressed = SQUASHFS_COMPRESSED(c_byte); -+ c_buffer = compressed ? msblk->read_data : buffer; -+ c_byte = SQUASHFS_COMPRESSED_SIZE(c_byte); -+ -+ TRACE("Block @ 0x%llx, %scompressed size %d\n", index, compressed -+ ? "" : "un", (unsigned int) c_byte); -+ -+ for (b = 1; bytes < c_byte; b++) { -+ if (!(bh[b] = sb_getblk(s, ++cur_index))) -+ goto block_release; -+ bytes += msblk->devblksize; -+ } -+ ll_rw_block(READ, b - 1, bh + 1); -+ } -+ -+ if (compressed) -+ down(&msblk->read_data_mutex); -+ -+ for (bytes = 0, k = 0; k < b; k++) { -+ avail_bytes = (c_byte - bytes) > (msblk->devblksize - offset) ? -+ msblk->devblksize - offset : -+ c_byte - bytes; -+ wait_on_buffer(bh[k]); -+ if (!buffer_uptodate(bh[k])) -+ goto block_release; -+ memcpy(c_buffer + bytes, bh[k]->b_data + offset, avail_bytes); -+ bytes += avail_bytes; -+ offset = 0; -+ brelse(bh[k]); -+ } -+ -+ /* -+ * uncompress block -+ */ -+ if (compressed) { -+ int zlib_err; -+ -+ stream.next_in = c_buffer; -+ stream.avail_in = c_byte; -+ stream.next_out = buffer; -+ stream.avail_out = msblk->read_size; -+ -+ if (((zlib_err = zlib_inflateInit(&stream)) != Z_OK) || -+ ((zlib_err = zlib_inflate(&stream, Z_FINISH)) -+ != Z_STREAM_END) || ((zlib_err = -+ zlib_inflateEnd(&stream)) != Z_OK)) { -+ ERROR("zlib_fs returned unexpected result 0x%x\n", -+ zlib_err); -+ bytes = 0; -+ } else -+ bytes = stream.total_out; -+ -+ up(&msblk->read_data_mutex); -+ } -+ -+ if (next_index) -+ *next_index = index + c_byte + (length ? 0 : -+ (SQUASHFS_CHECK_DATA(msblk->sblk.flags) -+ ? 3 : 2)); -+ return bytes; -+ -+block_release: -+ while (--b >= 0) -+ brelse(bh[b]); -+ -+read_failure: -+ ERROR("sb_bread failed reading block 0x%x\n", cur_index); -+ return 0; -+} -+ -+ -+SQSH_EXTERN int squashfs_get_cached_block(struct super_block *s, char *buffer, -+ long long block, unsigned int offset, -+ int length, long long *next_block, -+ unsigned int *next_offset) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ int n, i, bytes, return_length = length; -+ long long next_index; -+ -+ TRACE("Entered squashfs_get_cached_block [%llx:%x]\n", block, offset); -+ -+ while ( 1 ) { -+ for (i = 0; i < SQUASHFS_CACHED_BLKS; i++) -+ if (msblk->block_cache[i].block == block) -+ break; -+ -+ down(&msblk->block_cache_mutex); -+ -+ if (i == SQUASHFS_CACHED_BLKS) { -+ /* read inode header block */ -+ for (i = msblk->next_cache, n = SQUASHFS_CACHED_BLKS; -+ n ; n --, i = (i + 1) % -+ SQUASHFS_CACHED_BLKS) -+ if (msblk->block_cache[i].block != -+ SQUASHFS_USED_BLK) -+ break; -+ -+ if (n == 0) { -+ wait_queue_t wait; -+ -+ init_waitqueue_entry(&wait, current); -+ add_wait_queue(&msblk->waitq, &wait); -+ set_current_state(TASK_UNINTERRUPTIBLE); -+ up(&msblk->block_cache_mutex); -+ schedule(); -+ set_current_state(TASK_RUNNING); -+ remove_wait_queue(&msblk->waitq, &wait); -+ continue; -+ } -+ msblk->next_cache = (i + 1) % SQUASHFS_CACHED_BLKS; -+ -+ if (msblk->block_cache[i].block == -+ SQUASHFS_INVALID_BLK) { -+ if (!(msblk->block_cache[i].data = -+ kmalloc(SQUASHFS_METADATA_SIZE, -+ GFP_KERNEL))) { -+ ERROR("Failed to allocate cache" -+ "block\n"); -+ up(&msblk->block_cache_mutex); -+ goto out; -+ } -+ } -+ -+ msblk->block_cache[i].block = SQUASHFS_USED_BLK; -+ up(&msblk->block_cache_mutex); -+ -+ if (!(msblk->block_cache[i].length = -+ squashfs_read_data(s, -+ msblk->block_cache[i].data, -+ block, 0, &next_index))) { -+ ERROR("Unable to read cache block [%llx:%x]\n", -+ block, offset); -+ goto out; -+ } -+ -+ down(&msblk->block_cache_mutex); -+ wake_up(&msblk->waitq); -+ msblk->block_cache[i].block = block; -+ msblk->block_cache[i].next_index = next_index; -+ TRACE("Read cache block [%llx:%x]\n", block, offset); -+ } -+ -+ if (msblk->block_cache[i].block != block) { -+ up(&msblk->block_cache_mutex); -+ continue; -+ } -+ -+ if ((bytes = msblk->block_cache[i].length - offset) >= length) { -+ if (buffer) -+ memcpy(buffer, msblk->block_cache[i].data + -+ offset, length); -+ if (msblk->block_cache[i].length - offset == length) { -+ *next_block = msblk->block_cache[i].next_index; -+ *next_offset = 0; -+ } else { -+ *next_block = block; -+ *next_offset = offset + length; -+ } -+ up(&msblk->block_cache_mutex); -+ goto finish; -+ } else { -+ if (buffer) { -+ memcpy(buffer, msblk->block_cache[i].data + -+ offset, bytes); -+ buffer += bytes; -+ } -+ block = msblk->block_cache[i].next_index; -+ up(&msblk->block_cache_mutex); -+ length -= bytes; -+ offset = 0; -+ } -+ } -+ -+finish: -+ return return_length; -+out: -+ return 0; -+} -+ -+ -+static int get_fragment_location(struct super_block *s, unsigned int fragment, -+ long long *fragment_start_block, -+ unsigned int *fragment_size) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ long long start_block = -+ msblk->fragment_index[SQUASHFS_FRAGMENT_INDEX(fragment)]; -+ int offset = SQUASHFS_FRAGMENT_INDEX_OFFSET(fragment); -+ struct squashfs_fragment_entry fragment_entry; -+ -+ if (msblk->swap) { -+ struct squashfs_fragment_entry sfragment_entry; -+ -+ if (!squashfs_get_cached_block(s, (char *) &sfragment_entry, -+ start_block, offset, -+ sizeof(sfragment_entry), &start_block, -+ &offset)) -+ goto out; -+ SQUASHFS_SWAP_FRAGMENT_ENTRY(&fragment_entry, &sfragment_entry); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) &fragment_entry, -+ start_block, offset, -+ sizeof(fragment_entry), &start_block, -+ &offset)) -+ goto out; -+ -+ *fragment_start_block = fragment_entry.start_block; -+ *fragment_size = fragment_entry.size; -+ -+ return 1; -+ -+out: -+ return 0; -+} -+ -+ -+SQSH_EXTERN void release_cached_fragment(struct squashfs_sb_info *msblk, struct -+ squashfs_fragment_cache *fragment) -+{ -+ down(&msblk->fragment_mutex); -+ fragment->locked --; -+ wake_up(&msblk->fragment_wait_queue); -+ up(&msblk->fragment_mutex); -+} -+ -+ -+SQSH_EXTERN struct squashfs_fragment_cache *get_cached_fragment(struct super_block -+ *s, long long start_block, -+ int length) -+{ -+ int i, n, nf; -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ -+ while ( 1 ) { -+ down(&msblk->fragment_mutex); -+ -+ for (i = 0; i < SQUASHFS_CACHED_FRAGMENTS && -+ msblk->fragment[i].block != start_block; i++); -+ -+ if (i == SQUASHFS_CACHED_FRAGMENTS) { -+ nf = (msblk->next_fragment + 1) % -+ SQUASHFS_CACHED_FRAGMENTS; -+ for (i = msblk->next_fragment, n = -+ SQUASHFS_CACHED_FRAGMENTS; n && -+ msblk->fragment[i].locked; n--, i = (i + 1) % -+ SQUASHFS_CACHED_FRAGMENTS); -+ -+ if (n == 0) { -+ wait_queue_t wait; -+ -+ init_waitqueue_entry(&wait, current); -+ add_wait_queue(&msblk->fragment_wait_queue, -+ &wait); -+ set_current_state(TASK_UNINTERRUPTIBLE); -+ up(&msblk->fragment_mutex); -+ schedule(); -+ set_current_state(TASK_RUNNING); -+ remove_wait_queue(&msblk->fragment_wait_queue, -+ &wait); -+ continue; -+ } -+ msblk->next_fragment = nf; -+ -+ if (msblk->fragment[i].data == NULL) -+ if (!(msblk->fragment[i].data = SQUASHFS_ALLOC -+ (SQUASHFS_FILE_MAX_SIZE))) { -+ ERROR("Failed to allocate fragment " -+ "cache block\n"); -+ up(&msblk->fragment_mutex); -+ goto out; -+ } -+ -+ msblk->fragment[i].block = SQUASHFS_INVALID_BLK; -+ msblk->fragment[i].locked = 1; -+ up(&msblk->fragment_mutex); -+ -+ if (!(msblk->fragment[i].length = squashfs_read_data(s, -+ msblk->fragment[i].data, -+ start_block, length, NULL))) { -+ ERROR("Unable to read fragment cache block " -+ "[%llx]\n", start_block); -+ msblk->fragment[i].locked = 0; -+ goto out; -+ } -+ -+ msblk->fragment[i].block = start_block; -+ TRACE("New fragment %d, start block %lld, locked %d\n", -+ i, msblk->fragment[i].block, -+ msblk->fragment[i].locked); -+ break; -+ } -+ -+ msblk->fragment[i].locked++; -+ up(&msblk->fragment_mutex); -+ TRACE("Got fragment %d, start block %lld, locked %d\n", i, -+ msblk->fragment[i].block, -+ msblk->fragment[i].locked); -+ break; -+ } -+ -+ return &msblk->fragment[i]; -+ -+out: -+ return NULL; -+} -+ -+ -+static struct inode *squashfs_new_inode(struct super_block *s, -+ struct squashfs_base_inode_header *inodeb) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct inode *i = new_inode(s); -+ -+ if (i) { -+ i->i_ino = inodeb->inode_number; -+ i->i_mtime.tv_sec = inodeb->mtime; -+ i->i_atime.tv_sec = inodeb->mtime; -+ i->i_ctime.tv_sec = inodeb->mtime; -+ i->i_uid = msblk->uid[inodeb->uid]; -+ i->i_mode = inodeb->mode; -+ i->i_size = 0; -+ if (inodeb->guid == SQUASHFS_GUIDS) -+ i->i_gid = i->i_uid; -+ else -+ i->i_gid = msblk->guid[inodeb->guid]; -+ } -+ -+ return i; -+} -+ -+ -+static struct inode *squashfs_iget(struct super_block *s, squashfs_inode_t inode) -+{ -+ struct inode *i; -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ long long block = SQUASHFS_INODE_BLK(inode) + -+ sblk->inode_table_start; -+ unsigned int offset = SQUASHFS_INODE_OFFSET(inode); -+ long long next_block; -+ unsigned int next_offset; -+ union squashfs_inode_header id, sid; -+ struct squashfs_base_inode_header *inodeb = &id.base, -+ *sinodeb = &sid.base; -+ -+ TRACE("Entered squashfs_iget\n"); -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) sinodeb, block, -+ offset, sizeof(*sinodeb), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_BASE_INODE_HEADER(inodeb, sinodeb, -+ sizeof(*sinodeb)); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) inodeb, block, -+ offset, sizeof(*inodeb), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ switch(inodeb->inode_type) { -+ case SQUASHFS_FILE_TYPE: { -+ unsigned int frag_size; -+ long long frag_blk; -+ struct squashfs_reg_inode_header *inodep = &id.reg; -+ struct squashfs_reg_inode_header *sinodep = &sid.reg; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_REG_INODE_HEADER(inodep, sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ frag_blk = SQUASHFS_INVALID_BLK; -+ if (inodep->fragment != SQUASHFS_INVALID_FRAG && -+ !get_fragment_location(s, -+ inodep->fragment, &frag_blk, &frag_size)) -+ goto failed_read; -+ -+ if((i = squashfs_new_inode(s, inodeb)) == NULL) -+ goto failed_read1; -+ -+ i->i_nlink = 1; -+ i->i_size = inodep->file_size; -+ i->i_fop = &generic_ro_fops; -+ i->i_mode |= S_IFREG; -+ i->i_blocks = ((i->i_size - 1) >> 9) + 1; -+ SQUASHFS_I(i)->u.s1.fragment_start_block = frag_blk; -+ SQUASHFS_I(i)->u.s1.fragment_size = frag_size; -+ SQUASHFS_I(i)->u.s1.fragment_offset = inodep->offset; -+ SQUASHFS_I(i)->start_block = inodep->start_block; -+ SQUASHFS_I(i)->u.s1.block_list_start = next_block; -+ SQUASHFS_I(i)->offset = next_offset; -+ if (sblk->block_size > 4096) -+ i->i_data.a_ops = &squashfs_aops; -+ else -+ i->i_data.a_ops = &squashfs_aops_4K; -+ -+ TRACE("File inode %x:%x, start_block %llx, " -+ "block_list_start %llx, offset %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ inodep->start_block, next_block, -+ next_offset); -+ break; -+ } -+ case SQUASHFS_LREG_TYPE: { -+ unsigned int frag_size; -+ long long frag_blk; -+ struct squashfs_lreg_inode_header *inodep = &id.lreg; -+ struct squashfs_lreg_inode_header *sinodep = &sid.lreg; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_LREG_INODE_HEADER(inodep, sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ frag_blk = SQUASHFS_INVALID_BLK; -+ if (inodep->fragment != SQUASHFS_INVALID_FRAG && -+ !get_fragment_location(s, -+ inodep->fragment, &frag_blk, &frag_size)) -+ goto failed_read; -+ -+ if((i = squashfs_new_inode(s, inodeb)) == NULL) -+ goto failed_read1; -+ -+ i->i_nlink = inodep->nlink; -+ i->i_size = inodep->file_size; -+ i->i_fop = &generic_ro_fops; -+ i->i_mode |= S_IFREG; -+ i->i_blocks = ((i->i_size - 1) >> 9) + 1; -+ SQUASHFS_I(i)->u.s1.fragment_start_block = frag_blk; -+ SQUASHFS_I(i)->u.s1.fragment_size = frag_size; -+ SQUASHFS_I(i)->u.s1.fragment_offset = inodep->offset; -+ SQUASHFS_I(i)->start_block = inodep->start_block; -+ SQUASHFS_I(i)->u.s1.block_list_start = next_block; -+ SQUASHFS_I(i)->offset = next_offset; -+ if (sblk->block_size > 4096) -+ i->i_data.a_ops = &squashfs_aops; -+ else -+ i->i_data.a_ops = &squashfs_aops_4K; -+ -+ TRACE("File inode %x:%x, start_block %llx, " -+ "block_list_start %llx, offset %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ inodep->start_block, next_block, -+ next_offset); -+ break; -+ } -+ case SQUASHFS_DIR_TYPE: { -+ struct squashfs_dir_inode_header *inodep = &id.dir; -+ struct squashfs_dir_inode_header *sinodep = &sid.dir; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_DIR_INODE_HEADER(inodep, sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ if((i = squashfs_new_inode(s, inodeb)) == NULL) -+ goto failed_read1; -+ -+ i->i_nlink = inodep->nlink; -+ i->i_size = inodep->file_size; -+ i->i_op = &squashfs_dir_inode_ops; -+ i->i_fop = &squashfs_dir_ops; -+ i->i_mode |= S_IFDIR; -+ SQUASHFS_I(i)->start_block = inodep->start_block; -+ SQUASHFS_I(i)->offset = inodep->offset; -+ SQUASHFS_I(i)->u.s2.directory_index_count = 0; -+ SQUASHFS_I(i)->u.s2.parent_inode = inodep->parent_inode; -+ -+ TRACE("Directory inode %x:%x, start_block %x, offset " -+ "%x\n", SQUASHFS_INODE_BLK(inode), -+ offset, inodep->start_block, -+ inodep->offset); -+ break; -+ } -+ case SQUASHFS_LDIR_TYPE: { -+ struct squashfs_ldir_inode_header *inodep = &id.ldir; -+ struct squashfs_ldir_inode_header *sinodep = &sid.ldir; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_LDIR_INODE_HEADER(inodep, -+ sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ if((i = squashfs_new_inode(s, inodeb)) == NULL) -+ goto failed_read1; -+ -+ i->i_nlink = inodep->nlink; -+ i->i_size = inodep->file_size; -+ i->i_op = &squashfs_dir_inode_ops; -+ i->i_fop = &squashfs_dir_ops; -+ i->i_mode |= S_IFDIR; -+ SQUASHFS_I(i)->start_block = inodep->start_block; -+ SQUASHFS_I(i)->offset = inodep->offset; -+ SQUASHFS_I(i)->u.s2.directory_index_start = next_block; -+ SQUASHFS_I(i)->u.s2.directory_index_offset = -+ next_offset; -+ SQUASHFS_I(i)->u.s2.directory_index_count = -+ inodep->i_count; -+ SQUASHFS_I(i)->u.s2.parent_inode = inodep->parent_inode; -+ -+ TRACE("Long directory inode %x:%x, start_block %x, " -+ "offset %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ inodep->start_block, inodep->offset); -+ break; -+ } -+ case SQUASHFS_SYMLINK_TYPE: { -+ struct squashfs_symlink_inode_header *inodep = -+ &id.symlink; -+ struct squashfs_symlink_inode_header *sinodep = -+ &sid.symlink; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_SYMLINK_INODE_HEADER(inodep, -+ sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ if((i = squashfs_new_inode(s, inodeb)) == NULL) -+ goto failed_read1; -+ -+ i->i_nlink = inodep->nlink; -+ i->i_size = inodep->symlink_size; -+ i->i_op = &page_symlink_inode_operations; -+ i->i_data.a_ops = &squashfs_symlink_aops; -+ i->i_mode |= S_IFLNK; -+ SQUASHFS_I(i)->start_block = next_block; -+ SQUASHFS_I(i)->offset = next_offset; -+ -+ TRACE("Symbolic link inode %x:%x, start_block %llx, " -+ "offset %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ next_block, next_offset); -+ break; -+ } -+ case SQUASHFS_BLKDEV_TYPE: -+ case SQUASHFS_CHRDEV_TYPE: { -+ struct squashfs_dev_inode_header *inodep = &id.dev; -+ struct squashfs_dev_inode_header *sinodep = &sid.dev; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_DEV_INODE_HEADER(inodep, sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ if ((i = squashfs_new_inode(s, inodeb)) == NULL) -+ goto failed_read1; -+ -+ i->i_nlink = inodep->nlink; -+ i->i_mode |= (inodeb->inode_type == -+ SQUASHFS_CHRDEV_TYPE) ? S_IFCHR : -+ S_IFBLK; -+ init_special_inode(i, i->i_mode, -+ old_decode_dev(inodep->rdev)); -+ -+ TRACE("Device inode %x:%x, rdev %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ inodep->rdev); -+ break; -+ } -+ case SQUASHFS_FIFO_TYPE: -+ case SQUASHFS_SOCKET_TYPE: { -+ struct squashfs_ipc_inode_header *inodep = &id.ipc; -+ struct squashfs_ipc_inode_header *sinodep = &sid.ipc; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_IPC_INODE_HEADER(inodep, sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ if ((i = squashfs_new_inode(s, inodeb)) == NULL) -+ goto failed_read1; -+ -+ i->i_nlink = inodep->nlink; -+ i->i_mode |= (inodeb->inode_type == SQUASHFS_FIFO_TYPE) -+ ? S_IFIFO : S_IFSOCK; -+ init_special_inode(i, i->i_mode, 0); -+ break; -+ } -+ default: -+ ERROR("Unknown inode type %d in squashfs_iget!\n", -+ inodeb->inode_type); -+ goto failed_read1; -+ } -+ -+ insert_inode_hash(i); -+ return i; -+ -+failed_read: -+ ERROR("Unable to read inode [%llx:%x]\n", block, offset); -+ -+failed_read1: -+ return NULL; -+} -+ -+ -+static int read_fragment_index_table(struct super_block *s) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ -+ /* Allocate fragment index table */ -+ if (!(msblk->fragment_index = kmalloc(SQUASHFS_FRAGMENT_INDEX_BYTES -+ (sblk->fragments), GFP_KERNEL))) { -+ ERROR("Failed to allocate uid/gid table\n"); -+ return 0; -+ } -+ -+ if (SQUASHFS_FRAGMENT_INDEX_BYTES(sblk->fragments) && -+ !squashfs_read_data(s, (char *) -+ msblk->fragment_index, -+ sblk->fragment_table_start, -+ SQUASHFS_FRAGMENT_INDEX_BYTES -+ (sblk->fragments) | -+ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL)) { -+ ERROR("unable to read fragment index table\n"); -+ return 0; -+ } -+ -+ if (msblk->swap) { -+ int i; -+ long long fragment; -+ -+ for (i = 0; i < SQUASHFS_FRAGMENT_INDEXES(sblk->fragments); -+ i++) { -+ SQUASHFS_SWAP_FRAGMENT_INDEXES((&fragment), -+ &msblk->fragment_index[i], 1); -+ msblk->fragment_index[i] = fragment; -+ } -+ } -+ -+ return 1; -+} -+ -+ -+static int supported_squashfs_filesystem(struct squashfs_sb_info *msblk, int silent) -+{ -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ -+ msblk->iget = squashfs_iget; -+ msblk->read_blocklist = read_blocklist; -+ msblk->read_fragment_index_table = read_fragment_index_table; -+ -+ if (sblk->s_major == 1) { -+ if (!squashfs_1_0_supported(msblk)) { -+ SERROR("Major/Minor mismatch, Squashfs 1.0 filesystems " -+ "are unsupported\n"); -+ SERROR("Please recompile with " -+ "Squashfs 1.0 support enabled\n"); -+ return 0; -+ } -+ } else if (sblk->s_major == 2) { -+ if (!squashfs_2_0_supported(msblk)) { -+ SERROR("Major/Minor mismatch, Squashfs 2.0 filesystems " -+ "are unsupported\n"); -+ SERROR("Please recompile with " -+ "Squashfs 2.0 support enabled\n"); -+ return 0; -+ } -+ } else if(sblk->s_major != SQUASHFS_MAJOR || sblk->s_minor > -+ SQUASHFS_MINOR) { -+ SERROR("Major/Minor mismatch, trying to mount newer %d.%d " -+ "filesystem\n", sblk->s_major, sblk->s_minor); -+ SERROR("Please update your kernel\n"); -+ return 0; -+ } -+ -+ return 1; -+} -+ -+ -+static int squashfs_fill_super(struct super_block *s, void *data, int silent) -+{ -+ struct squashfs_sb_info *msblk; -+ struct squashfs_super_block *sblk; -+ int i; -+ char b[BDEVNAME_SIZE]; -+ struct inode *root; -+ -+ TRACE("Entered squashfs_read_superblock\n"); -+ -+ if (!(s->s_fs_info = kmalloc(sizeof(struct squashfs_sb_info), -+ GFP_KERNEL))) { -+ ERROR("Failed to allocate superblock\n"); -+ goto failure; -+ } -+ memset(s->s_fs_info, 0, sizeof(struct squashfs_sb_info)); -+ msblk = s->s_fs_info; -+ sblk = &msblk->sblk; -+ -+ msblk->devblksize = sb_min_blocksize(s, BLOCK_SIZE); -+ msblk->devblksize_log2 = ffz(~msblk->devblksize); -+ -+ init_MUTEX(&msblk->read_data_mutex); -+ init_MUTEX(&msblk->read_page_mutex); -+ init_MUTEX(&msblk->block_cache_mutex); -+ init_MUTEX(&msblk->fragment_mutex); -+ init_MUTEX(&msblk->meta_index_mutex); -+ -+ init_waitqueue_head(&msblk->waitq); -+ init_waitqueue_head(&msblk->fragment_wait_queue); -+ -+ if (!squashfs_read_data(s, (char *) sblk, SQUASHFS_START, -+ sizeof(struct squashfs_super_block) | -+ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL)) { -+ SERROR("unable to read superblock\n"); -+ goto failed_mount; -+ } -+ -+ /* Check it is a SQUASHFS superblock */ -+ msblk->swap = 0; -+ if ((s->s_magic = sblk->s_magic) != SQUASHFS_MAGIC) { -+ if (sblk->s_magic == SQUASHFS_MAGIC_SWAP) { -+ struct squashfs_super_block ssblk; -+ -+ WARNING("Mounting a different endian SQUASHFS " -+ "filesystem on %s\n", bdevname(s->s_bdev, b)); -+ -+ SQUASHFS_SWAP_SUPER_BLOCK(&ssblk, sblk); -+ memcpy(sblk, &ssblk, sizeof(struct squashfs_super_block)); -+ msblk->swap = 1; -+ } else { -+ SERROR("Can't find a SQUASHFS superblock on %s\n", -+ bdevname(s->s_bdev, b)); -+ goto failed_mount; -+ } -+ } -+ -+ /* Check the MAJOR & MINOR versions */ -+ if(!supported_squashfs_filesystem(msblk, silent)) -+ goto failed_mount; -+ -+ TRACE("Found valid superblock on %s\n", bdevname(s->s_bdev, b)); -+ TRACE("Inodes are %scompressed\n", -+ SQUASHFS_UNCOMPRESSED_INODES -+ (sblk->flags) ? "un" : ""); -+ TRACE("Data is %scompressed\n", -+ SQUASHFS_UNCOMPRESSED_DATA(sblk->flags) -+ ? "un" : ""); -+ TRACE("Check data is %s present in the filesystem\n", -+ SQUASHFS_CHECK_DATA(sblk->flags) ? -+ "" : "not"); -+ TRACE("Filesystem size %lld bytes\n", sblk->bytes_used); -+ TRACE("Block size %d\n", sblk->block_size); -+ TRACE("Number of inodes %d\n", sblk->inodes); -+ if (sblk->s_major > 1) -+ TRACE("Number of fragments %d\n", sblk->fragments); -+ TRACE("Number of uids %d\n", sblk->no_uids); -+ TRACE("Number of gids %d\n", sblk->no_guids); -+ TRACE("sblk->inode_table_start %llx\n", sblk->inode_table_start); -+ TRACE("sblk->directory_table_start %llx\n", sblk->directory_table_start); -+ if (sblk->s_major > 1) -+ TRACE("sblk->fragment_table_start %llx\n", -+ sblk->fragment_table_start); -+ TRACE("sblk->uid_start %llx\n", sblk->uid_start); -+ -+ s->s_flags |= MS_RDONLY; -+ s->s_op = &squashfs_ops; -+ -+ /* Init inode_table block pointer array */ -+ if (!(msblk->block_cache = kmalloc(sizeof(struct squashfs_cache) * -+ SQUASHFS_CACHED_BLKS, GFP_KERNEL))) { -+ ERROR("Failed to allocate block cache\n"); -+ goto failed_mount; -+ } -+ -+ for (i = 0; i < SQUASHFS_CACHED_BLKS; i++) -+ msblk->block_cache[i].block = SQUASHFS_INVALID_BLK; -+ -+ msblk->next_cache = 0; -+ -+ /* Allocate read_data block */ -+ msblk->read_size = (sblk->block_size < SQUASHFS_METADATA_SIZE) ? -+ SQUASHFS_METADATA_SIZE : -+ sblk->block_size; -+ -+ if (!(msblk->read_data = kmalloc(msblk->read_size, GFP_KERNEL))) { -+ ERROR("Failed to allocate read_data block\n"); -+ goto failed_mount; -+ } -+ -+ /* Allocate read_page block */ -+ if (!(msblk->read_page = kmalloc(sblk->block_size, GFP_KERNEL))) { -+ ERROR("Failed to allocate read_page block\n"); -+ goto failed_mount; -+ } -+ -+ /* Allocate uid and gid tables */ -+ if (!(msblk->uid = kmalloc((sblk->no_uids + sblk->no_guids) * -+ sizeof(unsigned int), GFP_KERNEL))) { -+ ERROR("Failed to allocate uid/gid table\n"); -+ goto failed_mount; -+ } -+ msblk->guid = msblk->uid + sblk->no_uids; -+ -+ if (msblk->swap) { -+ unsigned int suid[sblk->no_uids + sblk->no_guids]; -+ -+ if (!squashfs_read_data(s, (char *) &suid, sblk->uid_start, -+ ((sblk->no_uids + sblk->no_guids) * -+ sizeof(unsigned int)) | -+ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL)) { -+ ERROR("unable to read uid/gid table\n"); -+ goto failed_mount; -+ } -+ -+ SQUASHFS_SWAP_DATA(msblk->uid, suid, (sblk->no_uids + -+ sblk->no_guids), (sizeof(unsigned int) * 8)); -+ } else -+ if (!squashfs_read_data(s, (char *) msblk->uid, sblk->uid_start, -+ ((sblk->no_uids + sblk->no_guids) * -+ sizeof(unsigned int)) | -+ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL)) { -+ ERROR("unable to read uid/gid table\n"); -+ goto failed_mount; -+ } -+ -+ -+ if (sblk->s_major == 1 && squashfs_1_0_supported(msblk)) -+ goto allocate_root; -+ -+ if (!(msblk->fragment = kmalloc(sizeof(struct squashfs_fragment_cache) * -+ SQUASHFS_CACHED_FRAGMENTS, GFP_KERNEL))) { -+ ERROR("Failed to allocate fragment block cache\n"); -+ goto failed_mount; -+ } -+ -+ for (i = 0; i < SQUASHFS_CACHED_FRAGMENTS; i++) { -+ msblk->fragment[i].locked = 0; -+ msblk->fragment[i].block = SQUASHFS_INVALID_BLK; -+ msblk->fragment[i].data = NULL; -+ } -+ -+ msblk->next_fragment = 0; -+ -+ /* Allocate fragment index table */ -+ if (msblk->read_fragment_index_table(s) == 0) -+ goto failed_mount; -+ -+allocate_root: -+ if ((root = (msblk->iget)(s, sblk->root_inode)) == NULL) -+ goto failed_mount; -+ -+ if ((s->s_root = d_alloc_root(root)) == NULL) { -+ ERROR("Root inode create failed\n"); -+ iput(root); -+ goto failed_mount; -+ } -+ -+ TRACE("Leaving squashfs_read_super\n"); -+ return 0; -+ -+failed_mount: -+ kfree(msblk->fragment_index); -+ kfree(msblk->fragment); -+ kfree(msblk->uid); -+ kfree(msblk->read_page); -+ kfree(msblk->read_data); -+ kfree(msblk->block_cache); -+ kfree(msblk->fragment_index_2); -+ kfree(s->s_fs_info); -+ s->s_fs_info = NULL; -+ return -EINVAL; -+ -+failure: -+ return -ENOMEM; -+} -+ -+ -+static int squashfs_statfs(struct dentry *dentry, struct kstatfs *buf) -+{ -+ struct super_block *s = dentry->d_sb; -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ -+ TRACE("Entered squashfs_statfs\n"); -+ -+ buf->f_type = SQUASHFS_MAGIC; -+ buf->f_bsize = sblk->block_size; -+ buf->f_blocks = ((sblk->bytes_used - 1) >> sblk->block_log) + 1; -+ buf->f_bfree = buf->f_bavail = 0; -+ buf->f_files = sblk->inodes; -+ buf->f_ffree = 0; -+ buf->f_namelen = SQUASHFS_NAME_LEN; -+ -+ return 0; -+} -+ -+ -+static int squashfs_symlink_readpage(struct file *file, struct page *page) -+{ -+ struct inode *inode = page->mapping->host; -+ int index = page->index << PAGE_CACHE_SHIFT, length, bytes; -+ long long block = SQUASHFS_I(inode)->start_block; -+ int offset = SQUASHFS_I(inode)->offset; -+ void *pageaddr = kmap(page); -+ -+ TRACE("Entered squashfs_symlink_readpage, page index %ld, start block " -+ "%llx, offset %x\n", page->index, -+ SQUASHFS_I(inode)->start_block, -+ SQUASHFS_I(inode)->offset); -+ -+ for (length = 0; length < index; length += bytes) { -+ if (!(bytes = squashfs_get_cached_block(inode->i_sb, NULL, -+ block, offset, PAGE_CACHE_SIZE, &block, -+ &offset))) { -+ ERROR("Unable to read symbolic link [%llx:%x]\n", block, -+ offset); -+ goto skip_read; -+ } -+ } -+ -+ if (length != index) { -+ ERROR("(squashfs_symlink_readpage) length != index\n"); -+ bytes = 0; -+ goto skip_read; -+ } -+ -+ bytes = (i_size_read(inode) - length) > PAGE_CACHE_SIZE ? PAGE_CACHE_SIZE : -+ i_size_read(inode) - length; -+ -+ if (!(bytes = squashfs_get_cached_block(inode->i_sb, pageaddr, block, -+ offset, bytes, &block, &offset))) -+ ERROR("Unable to read symbolic link [%llx:%x]\n", block, offset); -+ -+skip_read: -+ memset(pageaddr + bytes, 0, PAGE_CACHE_SIZE - bytes); -+ kunmap(page); -+ SetPageUptodate(page); -+ unlock_page(page); -+ -+ return 0; -+} -+ -+ -+struct meta_index *locate_meta_index(struct inode *inode, int index, int offset) -+{ -+ struct meta_index *meta = NULL; -+ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info; -+ int i; -+ -+ down(&msblk->meta_index_mutex); -+ -+ TRACE("locate_meta_index: index %d, offset %d\n", index, offset); -+ -+ if(msblk->meta_index == NULL) -+ goto not_allocated; -+ -+ for (i = 0; i < SQUASHFS_META_NUMBER; i ++) -+ if (msblk->meta_index[i].inode_number == inode->i_ino && -+ msblk->meta_index[i].offset >= offset && -+ msblk->meta_index[i].offset <= index && -+ msblk->meta_index[i].locked == 0) { -+ TRACE("locate_meta_index: entry %d, offset %d\n", i, -+ msblk->meta_index[i].offset); -+ meta = &msblk->meta_index[i]; -+ offset = meta->offset; -+ } -+ -+ if (meta) -+ meta->locked = 1; -+ -+not_allocated: -+ up(&msblk->meta_index_mutex); -+ -+ return meta; -+} -+ -+ -+struct meta_index *empty_meta_index(struct inode *inode, int offset, int skip) -+{ -+ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info; -+ struct meta_index *meta = NULL; -+ int i; -+ -+ down(&msblk->meta_index_mutex); -+ -+ TRACE("empty_meta_index: offset %d, skip %d\n", offset, skip); -+ -+ if(msblk->meta_index == NULL) { -+ if (!(msblk->meta_index = kmalloc(sizeof(struct meta_index) * -+ SQUASHFS_META_NUMBER, GFP_KERNEL))) { -+ ERROR("Failed to allocate meta_index\n"); -+ goto failed; -+ } -+ for(i = 0; i < SQUASHFS_META_NUMBER; i++) { -+ msblk->meta_index[i].inode_number = 0; -+ msblk->meta_index[i].locked = 0; -+ } -+ msblk->next_meta_index = 0; -+ } -+ -+ for(i = SQUASHFS_META_NUMBER; i && -+ msblk->meta_index[msblk->next_meta_index].locked; i --) -+ msblk->next_meta_index = (msblk->next_meta_index + 1) % -+ SQUASHFS_META_NUMBER; -+ -+ if(i == 0) { -+ TRACE("empty_meta_index: failed!\n"); -+ goto failed; -+ } -+ -+ TRACE("empty_meta_index: returned meta entry %d, %p\n", -+ msblk->next_meta_index, -+ &msblk->meta_index[msblk->next_meta_index]); -+ -+ meta = &msblk->meta_index[msblk->next_meta_index]; -+ msblk->next_meta_index = (msblk->next_meta_index + 1) % -+ SQUASHFS_META_NUMBER; -+ -+ meta->inode_number = inode->i_ino; -+ meta->offset = offset; -+ meta->skip = skip; -+ meta->entries = 0; -+ meta->locked = 1; -+ -+failed: -+ up(&msblk->meta_index_mutex); -+ return meta; -+} -+ -+ -+void release_meta_index(struct inode *inode, struct meta_index *meta) -+{ -+ meta->locked = 0; -+} -+ -+ -+static int read_block_index(struct super_block *s, int blocks, char *block_list, -+ long long *start_block, int *offset) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ unsigned int *block_listp; -+ int block = 0; -+ -+ if (msblk->swap) { -+ char sblock_list[blocks << 2]; -+ -+ if (!squashfs_get_cached_block(s, sblock_list, *start_block, -+ *offset, blocks << 2, start_block, offset)) { -+ ERROR("Unable to read block list [%llx:%x]\n", -+ *start_block, *offset); -+ goto failure; -+ } -+ SQUASHFS_SWAP_INTS(((unsigned int *)block_list), -+ ((unsigned int *)sblock_list), blocks); -+ } else -+ if (!squashfs_get_cached_block(s, block_list, *start_block, -+ *offset, blocks << 2, start_block, offset)) { -+ ERROR("Unable to read block list [%llx:%x]\n", -+ *start_block, *offset); -+ goto failure; -+ } -+ -+ for (block_listp = (unsigned int *) block_list; blocks; -+ block_listp++, blocks --) -+ block += SQUASHFS_COMPRESSED_SIZE_BLOCK(*block_listp); -+ -+ return block; -+ -+failure: -+ return -1; -+} -+ -+ -+#define SIZE 256 -+ -+static inline int calculate_skip(int blocks) { -+ int skip = (blocks - 1) / ((SQUASHFS_SLOTS * SQUASHFS_META_ENTRIES + 1) * SQUASHFS_META_INDEXES); -+ return skip >= 7 ? 7 : skip + 1; -+} -+ -+ -+static int get_meta_index(struct inode *inode, int index, -+ long long *index_block, int *index_offset, -+ long long *data_block, char *block_list) -+{ -+ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ int skip = calculate_skip(i_size_read(inode) >> sblk->block_log); -+ int offset = 0; -+ struct meta_index *meta; -+ struct meta_entry *meta_entry; -+ long long cur_index_block = SQUASHFS_I(inode)->u.s1.block_list_start; -+ int cur_offset = SQUASHFS_I(inode)->offset; -+ long long cur_data_block = SQUASHFS_I(inode)->start_block; -+ int i; -+ -+ index /= SQUASHFS_META_INDEXES * skip; -+ -+ while ( offset < index ) { -+ meta = locate_meta_index(inode, index, offset + 1); -+ -+ if (meta == NULL) { -+ if ((meta = empty_meta_index(inode, offset + 1, -+ skip)) == NULL) -+ goto all_done; -+ } else { -+ offset = index < meta->offset + meta->entries ? index : -+ meta->offset + meta->entries - 1; -+ meta_entry = &meta->meta_entry[offset - meta->offset]; -+ cur_index_block = meta_entry->index_block + sblk->inode_table_start; -+ cur_offset = meta_entry->offset; -+ cur_data_block = meta_entry->data_block; -+ TRACE("get_meta_index: offset %d, meta->offset %d, " -+ "meta->entries %d\n", offset, meta->offset, -+ meta->entries); -+ TRACE("get_meta_index: index_block 0x%llx, offset 0x%x" -+ " data_block 0x%llx\n", cur_index_block, -+ cur_offset, cur_data_block); -+ } -+ -+ for (i = meta->offset + meta->entries; i <= index && -+ i < meta->offset + SQUASHFS_META_ENTRIES; i++) { -+ int blocks = skip * SQUASHFS_META_INDEXES; -+ -+ while (blocks) { -+ int block = blocks > (SIZE >> 2) ? (SIZE >> 2) : -+ blocks; -+ int res = read_block_index(inode->i_sb, block, -+ block_list, &cur_index_block, -+ &cur_offset); -+ -+ if (res == -1) -+ goto failed; -+ -+ cur_data_block += res; -+ blocks -= block; -+ } -+ -+ meta_entry = &meta->meta_entry[i - meta->offset]; -+ meta_entry->index_block = cur_index_block - sblk->inode_table_start; -+ meta_entry->offset = cur_offset; -+ meta_entry->data_block = cur_data_block; -+ meta->entries ++; -+ offset ++; -+ } -+ -+ TRACE("get_meta_index: meta->offset %d, meta->entries %d\n", -+ meta->offset, meta->entries); -+ -+ release_meta_index(inode, meta); -+ } -+ -+all_done: -+ *index_block = cur_index_block; -+ *index_offset = cur_offset; -+ *data_block = cur_data_block; -+ -+ return offset * SQUASHFS_META_INDEXES * skip; -+ -+failed: -+ release_meta_index(inode, meta); -+ return -1; -+} -+ -+ -+static long long read_blocklist(struct inode *inode, int index, -+ int readahead_blks, char *block_list, -+ unsigned short **block_p, unsigned int *bsize) -+{ -+ long long block_ptr; -+ int offset; -+ long long block; -+ int res = get_meta_index(inode, index, &block_ptr, &offset, &block, -+ block_list); -+ -+ TRACE("read_blocklist: res %d, index %d, block_ptr 0x%llx, offset" -+ " 0x%x, block 0x%llx\n", res, index, block_ptr, offset, -+ block); -+ -+ if(res == -1) -+ goto failure; -+ -+ index -= res; -+ -+ while ( index ) { -+ int blocks = index > (SIZE >> 2) ? (SIZE >> 2) : index; -+ int res = read_block_index(inode->i_sb, blocks, block_list, -+ &block_ptr, &offset); -+ if (res == -1) -+ goto failure; -+ block += res; -+ index -= blocks; -+ } -+ -+ if (read_block_index(inode->i_sb, 1, block_list, -+ &block_ptr, &offset) == -1) -+ goto failure; -+ *bsize = *((unsigned int *) block_list); -+ -+ return block; -+ -+failure: -+ return 0; -+} -+ -+ -+static int squashfs_readpage(struct file *file, struct page *page) -+{ -+ struct inode *inode = page->mapping->host; -+ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ unsigned char block_list[SIZE]; -+ long long block; -+ unsigned int bsize, i = 0, bytes = 0, byte_offset = 0; -+ int index = page->index >> (sblk->block_log - PAGE_CACHE_SHIFT); -+ void *pageaddr; -+ struct squashfs_fragment_cache *fragment = NULL; -+ char *data_ptr = msblk->read_page; -+ -+ int mask = (1 << (sblk->block_log - PAGE_CACHE_SHIFT)) - 1; -+ int start_index = page->index & ~mask; -+ int end_index = start_index | mask; -+ -+ TRACE("Entered squashfs_readpage, page index %lx, start block %llx\n", -+ page->index, -+ SQUASHFS_I(inode)->start_block); -+ -+ if (page->index >= ((i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> -+ PAGE_CACHE_SHIFT)) -+ goto skip_read; -+ -+ if (SQUASHFS_I(inode)->u.s1.fragment_start_block == SQUASHFS_INVALID_BLK -+ || index < (i_size_read(inode) >> -+ sblk->block_log)) { -+ if ((block = (msblk->read_blocklist)(inode, index, 1, -+ block_list, NULL, &bsize)) == 0) -+ goto skip_read; -+ -+ down(&msblk->read_page_mutex); -+ -+ if (!(bytes = squashfs_read_data(inode->i_sb, msblk->read_page, -+ block, bsize, NULL))) { -+ ERROR("Unable to read page, block %llx, size %x\n", block, -+ bsize); -+ up(&msblk->read_page_mutex); -+ goto skip_read; -+ } -+ } else { -+ if ((fragment = get_cached_fragment(inode->i_sb, -+ SQUASHFS_I(inode)-> -+ u.s1.fragment_start_block, -+ SQUASHFS_I(inode)->u.s1.fragment_size)) -+ == NULL) { -+ ERROR("Unable to read page, block %llx, size %x\n", -+ SQUASHFS_I(inode)-> -+ u.s1.fragment_start_block, -+ (int) SQUASHFS_I(inode)-> -+ u.s1.fragment_size); -+ goto skip_read; -+ } -+ bytes = SQUASHFS_I(inode)->u.s1.fragment_offset + -+ (i_size_read(inode) & (sblk->block_size -+ - 1)); -+ byte_offset = SQUASHFS_I(inode)->u.s1.fragment_offset; -+ data_ptr = fragment->data; -+ } -+ -+ for (i = start_index; i <= end_index && byte_offset < bytes; -+ i++, byte_offset += PAGE_CACHE_SIZE) { -+ struct page *push_page; -+ int available_bytes = (bytes - byte_offset) > PAGE_CACHE_SIZE ? -+ PAGE_CACHE_SIZE : bytes - byte_offset; -+ -+ TRACE("bytes %d, i %d, byte_offset %d, available_bytes %d\n", -+ bytes, i, byte_offset, available_bytes); -+ -+ if (i == page->index) { -+ pageaddr = kmap_atomic(page, KM_USER0); -+ memcpy(pageaddr, data_ptr + byte_offset, -+ available_bytes); -+ memset(pageaddr + available_bytes, 0, -+ PAGE_CACHE_SIZE - available_bytes); -+ kunmap_atomic(pageaddr, KM_USER0); -+ flush_dcache_page(page); -+ SetPageUptodate(page); -+ unlock_page(page); -+ } else if ((push_page = -+ grab_cache_page_nowait(page->mapping, i))) { -+ pageaddr = kmap_atomic(push_page, KM_USER0); -+ -+ memcpy(pageaddr, data_ptr + byte_offset, -+ available_bytes); -+ memset(pageaddr + available_bytes, 0, -+ PAGE_CACHE_SIZE - available_bytes); -+ kunmap_atomic(pageaddr, KM_USER0); -+ flush_dcache_page(push_page); -+ SetPageUptodate(push_page); -+ unlock_page(push_page); -+ page_cache_release(push_page); -+ } -+ } -+ -+ if (SQUASHFS_I(inode)->u.s1.fragment_start_block == SQUASHFS_INVALID_BLK -+ || index < (i_size_read(inode) >> -+ sblk->block_log)) -+ up(&msblk->read_page_mutex); -+ else -+ release_cached_fragment(msblk, fragment); -+ -+ return 0; -+ -+skip_read: -+ pageaddr = kmap_atomic(page, KM_USER0); -+ memset(pageaddr + bytes, 0, PAGE_CACHE_SIZE - bytes); -+ kunmap_atomic(pageaddr, KM_USER0); -+ flush_dcache_page(page); -+ SetPageUptodate(page); -+ unlock_page(page); -+ -+ return 0; -+} -+ -+ -+static int squashfs_readpage4K(struct file *file, struct page *page) -+{ -+ struct inode *inode = page->mapping->host; -+ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ unsigned char block_list[SIZE]; -+ long long block; -+ unsigned int bsize, bytes = 0; -+ void *pageaddr; -+ -+ TRACE("Entered squashfs_readpage4K, page index %lx, start block %llx\n", -+ page->index, -+ SQUASHFS_I(inode)->start_block); -+ -+ if (page->index >= ((i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> -+ PAGE_CACHE_SHIFT)) { -+ pageaddr = kmap_atomic(page, KM_USER0); -+ goto skip_read; -+ } -+ -+ if (SQUASHFS_I(inode)->u.s1.fragment_start_block == SQUASHFS_INVALID_BLK -+ || page->index < (i_size_read(inode) >> -+ sblk->block_log)) { -+ block = (msblk->read_blocklist)(inode, page->index, 1, -+ block_list, NULL, &bsize); -+ -+ down(&msblk->read_page_mutex); -+ bytes = squashfs_read_data(inode->i_sb, msblk->read_page, block, -+ bsize, NULL); -+ pageaddr = kmap_atomic(page, KM_USER0); -+ if (bytes) -+ memcpy(pageaddr, msblk->read_page, bytes); -+ else -+ ERROR("Unable to read page, block %llx, size %x\n", -+ block, bsize); -+ up(&msblk->read_page_mutex); -+ } else { -+ struct squashfs_fragment_cache *fragment = -+ get_cached_fragment(inode->i_sb, -+ SQUASHFS_I(inode)-> -+ u.s1.fragment_start_block, -+ SQUASHFS_I(inode)-> u.s1.fragment_size); -+ pageaddr = kmap_atomic(page, KM_USER0); -+ if (fragment) { -+ bytes = i_size_read(inode) & (sblk->block_size - 1); -+ memcpy(pageaddr, fragment->data + SQUASHFS_I(inode)-> -+ u.s1.fragment_offset, bytes); -+ release_cached_fragment(msblk, fragment); -+ } else -+ ERROR("Unable to read page, block %llx, size %x\n", -+ SQUASHFS_I(inode)-> -+ u.s1.fragment_start_block, (int) -+ SQUASHFS_I(inode)-> u.s1.fragment_size); -+ } -+ -+skip_read: -+ memset(pageaddr + bytes, 0, PAGE_CACHE_SIZE - bytes); -+ kunmap_atomic(pageaddr, KM_USER0); -+ flush_dcache_page(page); -+ SetPageUptodate(page); -+ unlock_page(page); -+ -+ return 0; -+} -+ -+ -+static int get_dir_index_using_offset(struct super_block *s, long long -+ *next_block, unsigned int *next_offset, -+ long long index_start, -+ unsigned int index_offset, int i_count, -+ long long f_pos) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ int i, length = 0; -+ struct squashfs_dir_index index; -+ -+ TRACE("Entered get_dir_index_using_offset, i_count %d, f_pos %d\n", -+ i_count, (unsigned int) f_pos); -+ -+ f_pos =- 3; -+ if (f_pos == 0) -+ goto finish; -+ -+ for (i = 0; i < i_count; i++) { -+ if (msblk->swap) { -+ struct squashfs_dir_index sindex; -+ squashfs_get_cached_block(s, (char *) &sindex, -+ index_start, index_offset, -+ sizeof(sindex), &index_start, -+ &index_offset); -+ SQUASHFS_SWAP_DIR_INDEX(&index, &sindex); -+ } else -+ squashfs_get_cached_block(s, (char *) &index, -+ index_start, index_offset, -+ sizeof(index), &index_start, -+ &index_offset); -+ -+ if (index.index > f_pos) -+ break; -+ -+ squashfs_get_cached_block(s, NULL, index_start, index_offset, -+ index.size + 1, &index_start, -+ &index_offset); -+ -+ length = index.index; -+ *next_block = index.start_block + sblk->directory_table_start; -+ } -+ -+ *next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE; -+ -+finish: -+ return length + 3; -+} -+ -+ -+static int get_dir_index_using_name(struct super_block *s, long long -+ *next_block, unsigned int *next_offset, -+ long long index_start, -+ unsigned int index_offset, int i_count, -+ const char *name, int size) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ int i, length = 0; -+ char buffer[sizeof(struct squashfs_dir_index) + SQUASHFS_NAME_LEN + 1]; -+ struct squashfs_dir_index *index = (struct squashfs_dir_index *) buffer; -+ char str[SQUASHFS_NAME_LEN + 1]; -+ -+ TRACE("Entered get_dir_index_using_name, i_count %d\n", i_count); -+ -+ strncpy(str, name, size); -+ str[size] = '\0'; -+ -+ for (i = 0; i < i_count; i++) { -+ if (msblk->swap) { -+ struct squashfs_dir_index sindex; -+ squashfs_get_cached_block(s, (char *) &sindex, -+ index_start, index_offset, -+ sizeof(sindex), &index_start, -+ &index_offset); -+ SQUASHFS_SWAP_DIR_INDEX(index, &sindex); -+ } else -+ squashfs_get_cached_block(s, (char *) index, -+ index_start, index_offset, -+ sizeof(struct squashfs_dir_index), -+ &index_start, &index_offset); -+ -+ squashfs_get_cached_block(s, index->name, index_start, -+ index_offset, index->size + 1, -+ &index_start, &index_offset); -+ -+ index->name[index->size + 1] = '\0'; -+ -+ if (strcmp(index->name, str) > 0) -+ break; -+ -+ length = index->index; -+ *next_block = index->start_block + sblk->directory_table_start; -+ } -+ -+ *next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE; -+ return length + 3; -+} -+ -+ -+static int squashfs_readdir(struct file *file, void *dirent, filldir_t filldir) -+{ -+ struct inode *i = file->f_dentry->d_inode; -+ struct squashfs_sb_info *msblk = i->i_sb->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ long long next_block = SQUASHFS_I(i)->start_block + -+ sblk->directory_table_start; -+ int next_offset = SQUASHFS_I(i)->offset, length = 0, dirs_read = 0, -+ dir_count; -+ struct squashfs_dir_header dirh; -+ char buffer[sizeof(struct squashfs_dir_entry) + SQUASHFS_NAME_LEN + 1]; -+ struct squashfs_dir_entry *dire = (struct squashfs_dir_entry *) buffer; -+ -+ TRACE("Entered squashfs_readdir [%llx:%x]\n", next_block, next_offset); -+ -+ while(file->f_pos < 3) { -+ char *name; -+ int size, i_ino; -+ -+ if(file->f_pos == 0) { -+ name = "."; -+ size = 1; -+ i_ino = i->i_ino; -+ } else { -+ name = ".."; -+ size = 2; -+ i_ino = SQUASHFS_I(i)->u.s2.parent_inode; -+ } -+ TRACE("Calling filldir(%x, %s, %d, %d, %d, %d)\n", -+ (unsigned int) dirent, name, size, (int) -+ file->f_pos, i_ino, -+ squashfs_filetype_table[1]); -+ -+ if (filldir(dirent, name, size, -+ file->f_pos, i_ino, -+ squashfs_filetype_table[1]) < 0) { -+ TRACE("Filldir returned less than 0\n"); -+ goto finish; -+ } -+ file->f_pos += size; -+ dirs_read++; -+ } -+ -+ length = get_dir_index_using_offset(i->i_sb, &next_block, &next_offset, -+ SQUASHFS_I(i)->u.s2.directory_index_start, -+ SQUASHFS_I(i)->u.s2.directory_index_offset, -+ SQUASHFS_I(i)->u.s2.directory_index_count, -+ file->f_pos); -+ -+ while (length < i_size_read(i)) { -+ /* read directory header */ -+ if (msblk->swap) { -+ struct squashfs_dir_header sdirh; -+ -+ if (!squashfs_get_cached_block(i->i_sb, (char *) &sdirh, -+ next_block, next_offset, sizeof(sdirh), -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(sdirh); -+ SQUASHFS_SWAP_DIR_HEADER(&dirh, &sdirh); -+ } else { -+ if (!squashfs_get_cached_block(i->i_sb, (char *) &dirh, -+ next_block, next_offset, sizeof(dirh), -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(dirh); -+ } -+ -+ dir_count = dirh.count + 1; -+ while (dir_count--) { -+ if (msblk->swap) { -+ struct squashfs_dir_entry sdire; -+ if (!squashfs_get_cached_block(i->i_sb, (char *) -+ &sdire, next_block, next_offset, -+ sizeof(sdire), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(sdire); -+ SQUASHFS_SWAP_DIR_ENTRY(dire, &sdire); -+ } else { -+ if (!squashfs_get_cached_block(i->i_sb, (char *) -+ dire, next_block, next_offset, -+ sizeof(*dire), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(*dire); -+ } -+ -+ if (!squashfs_get_cached_block(i->i_sb, dire->name, -+ next_block, next_offset, -+ dire->size + 1, &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += dire->size + 1; -+ -+ if (file->f_pos >= length) -+ continue; -+ -+ dire->name[dire->size + 1] = '\0'; -+ -+ TRACE("Calling filldir(%x, %s, %d, %d, %x:%x, %d, %d)\n", -+ (unsigned int) dirent, dire->name, -+ dire->size + 1, (int) file->f_pos, -+ dirh.start_block, dire->offset, -+ dirh.inode_number + dire->inode_number, -+ squashfs_filetype_table[dire->type]); -+ -+ if (filldir(dirent, dire->name, dire->size + 1, -+ file->f_pos, -+ dirh.inode_number + dire->inode_number, -+ squashfs_filetype_table[dire->type]) -+ < 0) { -+ TRACE("Filldir returned less than 0\n"); -+ goto finish; -+ } -+ file->f_pos = length; -+ dirs_read++; -+ } -+ } -+ -+finish: -+ return dirs_read; -+ -+failed_read: -+ ERROR("Unable to read directory block [%llx:%x]\n", next_block, -+ next_offset); -+ return 0; -+} -+ -+ -+static struct dentry *squashfs_lookup(struct inode *i, struct dentry *dentry, -+ struct nameidata *nd) -+{ -+ const unsigned char *name = dentry->d_name.name; -+ int len = dentry->d_name.len; -+ struct inode *inode = NULL; -+ struct squashfs_sb_info *msblk = i->i_sb->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ long long next_block = SQUASHFS_I(i)->start_block + -+ sblk->directory_table_start; -+ int next_offset = SQUASHFS_I(i)->offset, length = 0, -+ dir_count; -+ struct squashfs_dir_header dirh; -+ char buffer[sizeof(struct squashfs_dir_entry) + SQUASHFS_NAME_LEN]; -+ struct squashfs_dir_entry *dire = (struct squashfs_dir_entry *) buffer; -+ -+ TRACE("Entered squashfs_lookup [%llx:%x]\n", next_block, next_offset); -+ -+ if (len > SQUASHFS_NAME_LEN) -+ goto exit_loop; -+ -+ length = get_dir_index_using_name(i->i_sb, &next_block, &next_offset, -+ SQUASHFS_I(i)->u.s2.directory_index_start, -+ SQUASHFS_I(i)->u.s2.directory_index_offset, -+ SQUASHFS_I(i)->u.s2.directory_index_count, name, -+ len); -+ -+ while (length < i_size_read(i)) { -+ /* read directory header */ -+ if (msblk->swap) { -+ struct squashfs_dir_header sdirh; -+ if (!squashfs_get_cached_block(i->i_sb, (char *) &sdirh, -+ next_block, next_offset, sizeof(sdirh), -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(sdirh); -+ SQUASHFS_SWAP_DIR_HEADER(&dirh, &sdirh); -+ } else { -+ if (!squashfs_get_cached_block(i->i_sb, (char *) &dirh, -+ next_block, next_offset, sizeof(dirh), -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(dirh); -+ } -+ -+ dir_count = dirh.count + 1; -+ while (dir_count--) { -+ if (msblk->swap) { -+ struct squashfs_dir_entry sdire; -+ if (!squashfs_get_cached_block(i->i_sb, (char *) -+ &sdire, next_block,next_offset, -+ sizeof(sdire), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(sdire); -+ SQUASHFS_SWAP_DIR_ENTRY(dire, &sdire); -+ } else { -+ if (!squashfs_get_cached_block(i->i_sb, (char *) -+ dire, next_block,next_offset, -+ sizeof(*dire), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(*dire); -+ } -+ -+ if (!squashfs_get_cached_block(i->i_sb, dire->name, -+ next_block, next_offset, dire->size + 1, -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += dire->size + 1; -+ -+ if (name[0] < dire->name[0]) -+ goto exit_loop; -+ -+ if ((len == dire->size + 1) && !strncmp(name, -+ dire->name, len)) { -+ squashfs_inode_t ino = -+ SQUASHFS_MKINODE(dirh.start_block, -+ dire->offset); -+ -+ TRACE("calling squashfs_iget for directory " -+ "entry %s, inode %x:%x, %d\n", name, -+ dirh.start_block, dire->offset, -+ dirh.inode_number + dire->inode_number); -+ -+ inode = (msblk->iget)(i->i_sb, ino); -+ -+ goto exit_loop; -+ } -+ } -+ } -+ -+exit_loop: -+ d_add(dentry, inode); -+ return ERR_PTR(0); -+ -+failed_read: -+ ERROR("Unable to read directory block [%llx:%x]\n", next_block, -+ next_offset); -+ goto exit_loop; -+} -+ -+ -+static void squashfs_put_super(struct super_block *s) -+{ -+ int i; -+ -+ if (s->s_fs_info) { -+ struct squashfs_sb_info *sbi = s->s_fs_info; -+ if (sbi->block_cache) -+ for (i = 0; i < SQUASHFS_CACHED_BLKS; i++) -+ if (sbi->block_cache[i].block != -+ SQUASHFS_INVALID_BLK) -+ kfree(sbi->block_cache[i].data); -+ if (sbi->fragment) -+ for (i = 0; i < SQUASHFS_CACHED_FRAGMENTS; i++) -+ SQUASHFS_FREE(sbi->fragment[i].data); -+ kfree(sbi->fragment); -+ kfree(sbi->block_cache); -+ kfree(sbi->read_data); -+ kfree(sbi->read_page); -+ kfree(sbi->uid); -+ kfree(sbi->fragment_index); -+ kfree(sbi->fragment_index_2); -+ kfree(sbi->meta_index); -+ kfree(s->s_fs_info); -+ s->s_fs_info = NULL; -+ } -+} -+ -+ -+static int squashfs_get_sb(struct file_system_type *fs_type, -+ int flags, const char *dev_name, void *data, struct vfsmount *mnt) -+{ -+ return get_sb_bdev(fs_type, flags, dev_name, data, squashfs_fill_super, mnt); -+} -+ -+ -+static int __init init_squashfs_fs(void) -+{ -+ int err = init_inodecache(); -+ if (err) -+ goto out; -+ -+ printk(KERN_INFO "squashfs: version 3.0 (2006/03/15) " -+ "Phillip Lougher\n"); -+ -+ if (!(stream.workspace = vmalloc(zlib_inflate_workspacesize()))) { -+ ERROR("Failed to allocate zlib workspace\n"); -+ destroy_inodecache(); -+ err = -ENOMEM; -+ goto out; -+ } -+ -+ if ((err = register_filesystem(&squashfs_fs_type))) { -+ vfree(stream.workspace); -+ destroy_inodecache(); -+ } -+ -+out: -+ return err; -+} -+ -+ -+static void __exit exit_squashfs_fs(void) -+{ -+ vfree(stream.workspace); -+ unregister_filesystem(&squashfs_fs_type); -+ destroy_inodecache(); -+} -+ -+ -+static struct kmem_cache* squashfs_inode_cachep; -+ -+ -+static struct inode *squashfs_alloc_inode(struct super_block *sb) -+{ -+ struct squashfs_inode_info *ei; -+ ei = kmem_cache_alloc(squashfs_inode_cachep, GFP_KERNEL); -+ if (!ei) -+ return NULL; -+ return &ei->vfs_inode; -+} -+ -+ -+static void squashfs_destroy_inode(struct inode *inode) -+{ -+ kmem_cache_free(squashfs_inode_cachep, SQUASHFS_I(inode)); -+} -+ -+ -+static void init_once(void * foo, struct kmem_cache *cachep, unsigned long flags) -+{ -+ struct squashfs_inode_info *ei = foo; -+ -+ inode_init_once(&ei->vfs_inode); -+} -+ -+ -+static int __init init_inodecache(void) -+{ -+ squashfs_inode_cachep = kmem_cache_create("squashfs_inode_cache", -+ sizeof(struct squashfs_inode_info), -+ 0, SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT, -+ init_once); -+ if (squashfs_inode_cachep == NULL) -+ return -ENOMEM; -+ return 0; -+} -+ -+ -+static void destroy_inodecache(void) -+{ -+ kmem_cache_destroy(squashfs_inode_cachep); -+} -+ -+ -+module_init(init_squashfs_fs); -+module_exit(exit_squashfs_fs); -+MODULE_DESCRIPTION("squashfs, a compressed read-only filesystem"); -+MODULE_AUTHOR("Phillip Lougher "); -Index: linux-2.6.22/fs/squashfs/Makefile -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/fs/squashfs/Makefile 2007-08-28 21:56:34.000000000 +0100 -@@ -0,0 +1,7 @@ -+# -+# Makefile for the linux squashfs routines. -+# -+ -+obj-$(CONFIG_SQUASHFS) += squashfs.o -+squashfs-y += inode.o -+squashfs-y += squashfs2_0.o -Index: linux-2.6.22/fs/squashfs/squashfs2_0.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/fs/squashfs/squashfs2_0.c 2007-08-28 21:56:34.000000000 +0100 -@@ -0,0 +1,757 @@ -+/* -+ * Squashfs - a compressed read only filesystem for Linux -+ * -+ * Copyright (c) 2002, 2003, 2004, 2005, 2006 -+ * Phillip Lougher -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version 2, -+ * or (at your option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -+ * -+ * squashfs2_0.c -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include "squashfs.h" -+static int squashfs_readdir_2(struct file *file, void *dirent, filldir_t filldir); -+static struct dentry *squashfs_lookup_2(struct inode *, struct dentry *, -+ struct nameidata *); -+ -+static struct file_operations squashfs_dir_ops_2 = { -+ .read = generic_read_dir, -+ .readdir = squashfs_readdir_2 -+}; -+ -+static struct inode_operations squashfs_dir_inode_ops_2 = { -+ .lookup = squashfs_lookup_2 -+}; -+ -+static unsigned char squashfs_filetype_table[] = { -+ DT_UNKNOWN, DT_DIR, DT_REG, DT_LNK, DT_BLK, DT_CHR, DT_FIFO, DT_SOCK -+}; -+ -+static int read_fragment_index_table_2(struct super_block *s) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ -+ if (!(msblk->fragment_index_2 = kmalloc(SQUASHFS_FRAGMENT_INDEX_BYTES_2 -+ (sblk->fragments), GFP_KERNEL))) { -+ ERROR("Failed to allocate uid/gid table\n"); -+ return 0; -+ } -+ -+ if (SQUASHFS_FRAGMENT_INDEX_BYTES_2(sblk->fragments) && -+ !squashfs_read_data(s, (char *) -+ msblk->fragment_index_2, -+ sblk->fragment_table_start, -+ SQUASHFS_FRAGMENT_INDEX_BYTES_2 -+ (sblk->fragments) | -+ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL)) { -+ ERROR("unable to read fragment index table\n"); -+ return 0; -+ } -+ -+ if (msblk->swap) { -+ int i; -+ unsigned int fragment; -+ -+ for (i = 0; i < SQUASHFS_FRAGMENT_INDEXES_2(sblk->fragments); -+ i++) { -+ SQUASHFS_SWAP_FRAGMENT_INDEXES_2((&fragment), -+ &msblk->fragment_index_2[i], 1); -+ msblk->fragment_index_2[i] = fragment; -+ } -+ } -+ -+ return 1; -+} -+ -+ -+static int get_fragment_location_2(struct super_block *s, unsigned int fragment, -+ long long *fragment_start_block, -+ unsigned int *fragment_size) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ long long start_block = -+ msblk->fragment_index_2[SQUASHFS_FRAGMENT_INDEX_2(fragment)]; -+ int offset = SQUASHFS_FRAGMENT_INDEX_OFFSET_2(fragment); -+ struct squashfs_fragment_entry_2 fragment_entry; -+ -+ if (msblk->swap) { -+ struct squashfs_fragment_entry_2 sfragment_entry; -+ -+ if (!squashfs_get_cached_block(s, (char *) &sfragment_entry, -+ start_block, offset, -+ sizeof(sfragment_entry), &start_block, -+ &offset)) -+ goto out; -+ SQUASHFS_SWAP_FRAGMENT_ENTRY_2(&fragment_entry, &sfragment_entry); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) &fragment_entry, -+ start_block, offset, -+ sizeof(fragment_entry), &start_block, -+ &offset)) -+ goto out; -+ -+ *fragment_start_block = fragment_entry.start_block; -+ *fragment_size = fragment_entry.size; -+ -+ return 1; -+ -+out: -+ return 0; -+} -+ -+ -+static struct inode *squashfs_new_inode(struct super_block *s, -+ struct squashfs_base_inode_header_2 *inodeb, unsigned int ino) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ struct inode *i = new_inode(s); -+ -+ if (i) { -+ i->i_ino = ino; -+ i->i_mtime.tv_sec = sblk->mkfs_time; -+ i->i_atime.tv_sec = sblk->mkfs_time; -+ i->i_ctime.tv_sec = sblk->mkfs_time; -+ i->i_uid = msblk->uid[inodeb->uid]; -+ i->i_mode = inodeb->mode; -+ i->i_nlink = 1; -+ i->i_size = 0; -+ if (inodeb->guid == SQUASHFS_GUIDS) -+ i->i_gid = i->i_uid; -+ else -+ i->i_gid = msblk->guid[inodeb->guid]; -+ } -+ -+ return i; -+} -+ -+ -+static struct inode *squashfs_iget_2(struct super_block *s, squashfs_inode_t inode) -+{ -+ struct inode *i; -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ unsigned int block = SQUASHFS_INODE_BLK(inode) + -+ sblk->inode_table_start; -+ unsigned int offset = SQUASHFS_INODE_OFFSET(inode); -+ unsigned int ino = SQUASHFS_MK_VFS_INODE(block -+ - sblk->inode_table_start, offset); -+ long long next_block; -+ unsigned int next_offset; -+ union squashfs_inode_header_2 id, sid; -+ struct squashfs_base_inode_header_2 *inodeb = &id.base, -+ *sinodeb = &sid.base; -+ -+ TRACE("Entered squashfs_iget\n"); -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) sinodeb, block, -+ offset, sizeof(*sinodeb), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_BASE_INODE_HEADER_2(inodeb, sinodeb, -+ sizeof(*sinodeb)); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) inodeb, block, -+ offset, sizeof(*inodeb), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ switch(inodeb->inode_type) { -+ case SQUASHFS_FILE_TYPE: { -+ struct squashfs_reg_inode_header_2 *inodep = &id.reg; -+ struct squashfs_reg_inode_header_2 *sinodep = &sid.reg; -+ long long frag_blk; -+ unsigned int frag_size; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_REG_INODE_HEADER_2(inodep, sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ frag_blk = SQUASHFS_INVALID_BLK; -+ if (inodep->fragment != SQUASHFS_INVALID_FRAG && -+ !get_fragment_location_2(s, -+ inodep->fragment, &frag_blk, &frag_size)) -+ goto failed_read; -+ -+ if((i = squashfs_new_inode(s, inodeb, ino)) == NULL) -+ goto failed_read1; -+ -+ i->i_size = inodep->file_size; -+ i->i_fop = &generic_ro_fops; -+ i->i_mode |= S_IFREG; -+ i->i_mtime.tv_sec = inodep->mtime; -+ i->i_atime.tv_sec = inodep->mtime; -+ i->i_ctime.tv_sec = inodep->mtime; -+ i->i_blocks = ((i->i_size - 1) >> 9) + 1; -+ SQUASHFS_I(i)->u.s1.fragment_start_block = frag_blk; -+ SQUASHFS_I(i)->u.s1.fragment_size = frag_size; -+ SQUASHFS_I(i)->u.s1.fragment_offset = inodep->offset; -+ SQUASHFS_I(i)->start_block = inodep->start_block; -+ SQUASHFS_I(i)->u.s1.block_list_start = next_block; -+ SQUASHFS_I(i)->offset = next_offset; -+ if (sblk->block_size > 4096) -+ i->i_data.a_ops = &squashfs_aops; -+ else -+ i->i_data.a_ops = &squashfs_aops_4K; -+ -+ TRACE("File inode %x:%x, start_block %x, " -+ "block_list_start %llx, offset %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ inodep->start_block, next_block, -+ next_offset); -+ break; -+ } -+ case SQUASHFS_DIR_TYPE: { -+ struct squashfs_dir_inode_header_2 *inodep = &id.dir; -+ struct squashfs_dir_inode_header_2 *sinodep = &sid.dir; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_DIR_INODE_HEADER_2(inodep, sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ if((i = squashfs_new_inode(s, inodeb, ino)) == NULL) -+ goto failed_read1; -+ -+ i->i_size = inodep->file_size; -+ i->i_op = &squashfs_dir_inode_ops_2; -+ i->i_fop = &squashfs_dir_ops_2; -+ i->i_mode |= S_IFDIR; -+ i->i_mtime.tv_sec = inodep->mtime; -+ i->i_atime.tv_sec = inodep->mtime; -+ i->i_ctime.tv_sec = inodep->mtime; -+ SQUASHFS_I(i)->start_block = inodep->start_block; -+ SQUASHFS_I(i)->offset = inodep->offset; -+ SQUASHFS_I(i)->u.s2.directory_index_count = 0; -+ SQUASHFS_I(i)->u.s2.parent_inode = 0; -+ -+ TRACE("Directory inode %x:%x, start_block %x, offset " -+ "%x\n", SQUASHFS_INODE_BLK(inode), -+ offset, inodep->start_block, -+ inodep->offset); -+ break; -+ } -+ case SQUASHFS_LDIR_TYPE: { -+ struct squashfs_ldir_inode_header_2 *inodep = &id.ldir; -+ struct squashfs_ldir_inode_header_2 *sinodep = &sid.ldir; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_LDIR_INODE_HEADER_2(inodep, -+ sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ if((i = squashfs_new_inode(s, inodeb, ino)) == NULL) -+ goto failed_read1; -+ -+ i->i_size = inodep->file_size; -+ i->i_op = &squashfs_dir_inode_ops_2; -+ i->i_fop = &squashfs_dir_ops_2; -+ i->i_mode |= S_IFDIR; -+ i->i_mtime.tv_sec = inodep->mtime; -+ i->i_atime.tv_sec = inodep->mtime; -+ i->i_ctime.tv_sec = inodep->mtime; -+ SQUASHFS_I(i)->start_block = inodep->start_block; -+ SQUASHFS_I(i)->offset = inodep->offset; -+ SQUASHFS_I(i)->u.s2.directory_index_start = next_block; -+ SQUASHFS_I(i)->u.s2.directory_index_offset = -+ next_offset; -+ SQUASHFS_I(i)->u.s2.directory_index_count = -+ inodep->i_count; -+ SQUASHFS_I(i)->u.s2.parent_inode = 0; -+ -+ TRACE("Long directory inode %x:%x, start_block %x, " -+ "offset %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ inodep->start_block, inodep->offset); -+ break; -+ } -+ case SQUASHFS_SYMLINK_TYPE: { -+ struct squashfs_symlink_inode_header_2 *inodep = -+ &id.symlink; -+ struct squashfs_symlink_inode_header_2 *sinodep = -+ &sid.symlink; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_SYMLINK_INODE_HEADER_2(inodep, -+ sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ if((i = squashfs_new_inode(s, inodeb, ino)) == NULL) -+ goto failed_read1; -+ -+ i->i_size = inodep->symlink_size; -+ i->i_op = &page_symlink_inode_operations; -+ i->i_data.a_ops = &squashfs_symlink_aops; -+ i->i_mode |= S_IFLNK; -+ SQUASHFS_I(i)->start_block = next_block; -+ SQUASHFS_I(i)->offset = next_offset; -+ -+ TRACE("Symbolic link inode %x:%x, start_block %llx, " -+ "offset %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ next_block, next_offset); -+ break; -+ } -+ case SQUASHFS_BLKDEV_TYPE: -+ case SQUASHFS_CHRDEV_TYPE: { -+ struct squashfs_dev_inode_header_2 *inodep = &id.dev; -+ struct squashfs_dev_inode_header_2 *sinodep = &sid.dev; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_DEV_INODE_HEADER_2(inodep, sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ if ((i = squashfs_new_inode(s, inodeb, ino)) == NULL) -+ goto failed_read1; -+ -+ i->i_mode |= (inodeb->inode_type == -+ SQUASHFS_CHRDEV_TYPE) ? S_IFCHR : -+ S_IFBLK; -+ init_special_inode(i, i->i_mode, -+ old_decode_dev(inodep->rdev)); -+ -+ TRACE("Device inode %x:%x, rdev %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ inodep->rdev); -+ break; -+ } -+ case SQUASHFS_FIFO_TYPE: -+ case SQUASHFS_SOCKET_TYPE: { -+ if ((i = squashfs_new_inode(s, inodeb, ino)) == NULL) -+ goto failed_read1; -+ -+ i->i_mode |= (inodeb->inode_type == SQUASHFS_FIFO_TYPE) -+ ? S_IFIFO : S_IFSOCK; -+ init_special_inode(i, i->i_mode, 0); -+ break; -+ } -+ default: -+ ERROR("Unknown inode type %d in squashfs_iget!\n", -+ inodeb->inode_type); -+ goto failed_read1; -+ } -+ -+ insert_inode_hash(i); -+ return i; -+ -+failed_read: -+ ERROR("Unable to read inode [%x:%x]\n", block, offset); -+ -+failed_read1: -+ return NULL; -+} -+ -+ -+static int get_dir_index_using_offset(struct super_block *s, long long -+ *next_block, unsigned int *next_offset, -+ long long index_start, -+ unsigned int index_offset, int i_count, -+ long long f_pos) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ int i, length = 0; -+ struct squashfs_dir_index_2 index; -+ -+ TRACE("Entered get_dir_index_using_offset, i_count %d, f_pos %d\n", -+ i_count, (unsigned int) f_pos); -+ -+ if (f_pos == 0) -+ goto finish; -+ -+ for (i = 0; i < i_count; i++) { -+ if (msblk->swap) { -+ struct squashfs_dir_index_2 sindex; -+ squashfs_get_cached_block(s, (char *) &sindex, -+ index_start, index_offset, -+ sizeof(sindex), &index_start, -+ &index_offset); -+ SQUASHFS_SWAP_DIR_INDEX_2(&index, &sindex); -+ } else -+ squashfs_get_cached_block(s, (char *) &index, -+ index_start, index_offset, -+ sizeof(index), &index_start, -+ &index_offset); -+ -+ if (index.index > f_pos) -+ break; -+ -+ squashfs_get_cached_block(s, NULL, index_start, index_offset, -+ index.size + 1, &index_start, -+ &index_offset); -+ -+ length = index.index; -+ *next_block = index.start_block + sblk->directory_table_start; -+ } -+ -+ *next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE; -+ -+finish: -+ return length; -+} -+ -+ -+static int get_dir_index_using_name(struct super_block *s, long long -+ *next_block, unsigned int *next_offset, -+ long long index_start, -+ unsigned int index_offset, int i_count, -+ const char *name, int size) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ int i, length = 0; -+ char buffer[sizeof(struct squashfs_dir_index_2) + SQUASHFS_NAME_LEN + 1]; -+ struct squashfs_dir_index_2 *index = (struct squashfs_dir_index_2 *) buffer; -+ char str[SQUASHFS_NAME_LEN + 1]; -+ -+ TRACE("Entered get_dir_index_using_name, i_count %d\n", i_count); -+ -+ strncpy(str, name, size); -+ str[size] = '\0'; -+ -+ for (i = 0; i < i_count; i++) { -+ if (msblk->swap) { -+ struct squashfs_dir_index_2 sindex; -+ squashfs_get_cached_block(s, (char *) &sindex, -+ index_start, index_offset, -+ sizeof(sindex), &index_start, -+ &index_offset); -+ SQUASHFS_SWAP_DIR_INDEX_2(index, &sindex); -+ } else -+ squashfs_get_cached_block(s, (char *) index, -+ index_start, index_offset, -+ sizeof(struct squashfs_dir_index_2), -+ &index_start, &index_offset); -+ -+ squashfs_get_cached_block(s, index->name, index_start, -+ index_offset, index->size + 1, -+ &index_start, &index_offset); -+ -+ index->name[index->size + 1] = '\0'; -+ -+ if (strcmp(index->name, str) > 0) -+ break; -+ -+ length = index->index; -+ *next_block = index->start_block + sblk->directory_table_start; -+ } -+ -+ *next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE; -+ return length; -+} -+ -+ -+static int squashfs_readdir_2(struct file *file, void *dirent, filldir_t filldir) -+{ -+ struct inode *i = file->f_dentry->d_inode; -+ struct squashfs_sb_info *msblk = i->i_sb->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ long long next_block = SQUASHFS_I(i)->start_block + -+ sblk->directory_table_start; -+ int next_offset = SQUASHFS_I(i)->offset, length = 0, dirs_read = 0, -+ dir_count; -+ struct squashfs_dir_header_2 dirh; -+ char buffer[sizeof(struct squashfs_dir_entry_2) + SQUASHFS_NAME_LEN + 1]; -+ struct squashfs_dir_entry_2 *dire = (struct squashfs_dir_entry_2 *) buffer; -+ -+ TRACE("Entered squashfs_readdir_2 [%llx:%x]\n", next_block, next_offset); -+ -+ length = get_dir_index_using_offset(i->i_sb, &next_block, &next_offset, -+ SQUASHFS_I(i)->u.s2.directory_index_start, -+ SQUASHFS_I(i)->u.s2.directory_index_offset, -+ SQUASHFS_I(i)->u.s2.directory_index_count, -+ file->f_pos); -+ -+ while (length < i_size_read(i)) { -+ /* read directory header */ -+ if (msblk->swap) { -+ struct squashfs_dir_header_2 sdirh; -+ -+ if (!squashfs_get_cached_block(i->i_sb, (char *) &sdirh, -+ next_block, next_offset, sizeof(sdirh), -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(sdirh); -+ SQUASHFS_SWAP_DIR_HEADER_2(&dirh, &sdirh); -+ } else { -+ if (!squashfs_get_cached_block(i->i_sb, (char *) &dirh, -+ next_block, next_offset, sizeof(dirh), -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(dirh); -+ } -+ -+ dir_count = dirh.count + 1; -+ while (dir_count--) { -+ if (msblk->swap) { -+ struct squashfs_dir_entry_2 sdire; -+ if (!squashfs_get_cached_block(i->i_sb, (char *) -+ &sdire, next_block, next_offset, -+ sizeof(sdire), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(sdire); -+ SQUASHFS_SWAP_DIR_ENTRY_2(dire, &sdire); -+ } else { -+ if (!squashfs_get_cached_block(i->i_sb, (char *) -+ dire, next_block, next_offset, -+ sizeof(*dire), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(*dire); -+ } -+ -+ if (!squashfs_get_cached_block(i->i_sb, dire->name, -+ next_block, next_offset, -+ dire->size + 1, &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += dire->size + 1; -+ -+ if (file->f_pos >= length) -+ continue; -+ -+ dire->name[dire->size + 1] = '\0'; -+ -+ TRACE("Calling filldir(%x, %s, %d, %d, %x:%x, %d)\n", -+ (unsigned int) dirent, dire->name, -+ dire->size + 1, (int) file->f_pos, -+ dirh.start_block, dire->offset, -+ squashfs_filetype_table[dire->type]); -+ -+ if (filldir(dirent, dire->name, dire->size + 1, -+ file->f_pos, SQUASHFS_MK_VFS_INODE( -+ dirh.start_block, dire->offset), -+ squashfs_filetype_table[dire->type]) -+ < 0) { -+ TRACE("Filldir returned less than 0\n"); -+ goto finish; -+ } -+ file->f_pos = length; -+ dirs_read++; -+ } -+ } -+ -+finish: -+ return dirs_read; -+ -+failed_read: -+ ERROR("Unable to read directory block [%llx:%x]\n", next_block, -+ next_offset); -+ return 0; -+} -+ -+ -+static struct dentry *squashfs_lookup_2(struct inode *i, struct dentry *dentry, -+ struct nameidata *nd) -+{ -+ const unsigned char *name = dentry->d_name.name; -+ int len = dentry->d_name.len; -+ struct inode *inode = NULL; -+ struct squashfs_sb_info *msblk = i->i_sb->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ long long next_block = SQUASHFS_I(i)->start_block + -+ sblk->directory_table_start; -+ int next_offset = SQUASHFS_I(i)->offset, length = 0, -+ dir_count; -+ struct squashfs_dir_header_2 dirh; -+ char buffer[sizeof(struct squashfs_dir_entry_2) + SQUASHFS_NAME_LEN]; -+ struct squashfs_dir_entry_2 *dire = (struct squashfs_dir_entry_2 *) buffer; -+ int sorted = sblk->s_major == 2 && sblk->s_minor >= 1; -+ -+ TRACE("Entered squashfs_lookup [%llx:%x]\n", next_block, next_offset); -+ -+ if (len > SQUASHFS_NAME_LEN) -+ goto exit_loop; -+ -+ length = get_dir_index_using_name(i->i_sb, &next_block, &next_offset, -+ SQUASHFS_I(i)->u.s2.directory_index_start, -+ SQUASHFS_I(i)->u.s2.directory_index_offset, -+ SQUASHFS_I(i)->u.s2.directory_index_count, name, -+ len); -+ -+ while (length < i_size_read(i)) { -+ /* read directory header */ -+ if (msblk->swap) { -+ struct squashfs_dir_header_2 sdirh; -+ if (!squashfs_get_cached_block(i->i_sb, (char *) &sdirh, -+ next_block, next_offset, sizeof(sdirh), -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(sdirh); -+ SQUASHFS_SWAP_DIR_HEADER_2(&dirh, &sdirh); -+ } else { -+ if (!squashfs_get_cached_block(i->i_sb, (char *) &dirh, -+ next_block, next_offset, sizeof(dirh), -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(dirh); -+ } -+ -+ dir_count = dirh.count + 1; -+ while (dir_count--) { -+ if (msblk->swap) { -+ struct squashfs_dir_entry_2 sdire; -+ if (!squashfs_get_cached_block(i->i_sb, (char *) -+ &sdire, next_block,next_offset, -+ sizeof(sdire), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(sdire); -+ SQUASHFS_SWAP_DIR_ENTRY_2(dire, &sdire); -+ } else { -+ if (!squashfs_get_cached_block(i->i_sb, (char *) -+ dire, next_block,next_offset, -+ sizeof(*dire), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(*dire); -+ } -+ -+ if (!squashfs_get_cached_block(i->i_sb, dire->name, -+ next_block, next_offset, dire->size + 1, -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += dire->size + 1; -+ -+ if (sorted && name[0] < dire->name[0]) -+ goto exit_loop; -+ -+ if ((len == dire->size + 1) && !strncmp(name, -+ dire->name, len)) { -+ squashfs_inode_t ino = -+ SQUASHFS_MKINODE(dirh.start_block, -+ dire->offset); -+ -+ TRACE("calling squashfs_iget for directory " -+ "entry %s, inode %x:%x, %lld\n", name, -+ dirh.start_block, dire->offset, ino); -+ -+ inode = (msblk->iget)(i->i_sb, ino); -+ -+ goto exit_loop; -+ } -+ } -+ } -+ -+exit_loop: -+ d_add(dentry, inode); -+ return ERR_PTR(0); -+ -+failed_read: -+ ERROR("Unable to read directory block [%llx:%x]\n", next_block, -+ next_offset); -+ goto exit_loop; -+} -+ -+ -+int squashfs_2_0_supported(struct squashfs_sb_info *msblk) -+{ -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ -+ msblk->iget = squashfs_iget_2; -+ msblk->read_fragment_index_table = read_fragment_index_table_2; -+ -+ sblk->bytes_used = sblk->bytes_used_2; -+ sblk->uid_start = sblk->uid_start_2; -+ sblk->guid_start = sblk->guid_start_2; -+ sblk->inode_table_start = sblk->inode_table_start_2; -+ sblk->directory_table_start = sblk->directory_table_start_2; -+ sblk->fragment_table_start = sblk->fragment_table_start_2; -+ -+ return 1; -+} -Index: linux-2.6.22/fs/squashfs/squashfs.h -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/fs/squashfs/squashfs.h 2007-08-28 21:56:34.000000000 +0100 -@@ -0,0 +1,86 @@ -+/* -+ * Squashfs - a compressed read only filesystem for Linux -+ * -+ * Copyright (c) 2002, 2003, 2004, 2005, 2006 -+ * Phillip Lougher -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version 2, -+ * or (at your option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -+ * -+ * squashfs.h -+ */ -+ -+#ifdef CONFIG_SQUASHFS_1_0_COMPATIBILITY -+#undef CONFIG_SQUASHFS_1_0_COMPATIBILITY -+#endif -+ -+#ifdef SQUASHFS_TRACE -+#define TRACE(s, args...) printk(KERN_NOTICE "SQUASHFS: "s, ## args) -+#else -+#define TRACE(s, args...) {} -+#endif -+ -+#define ERROR(s, args...) printk(KERN_ERR "SQUASHFS error: "s, ## args) -+ -+#define SERROR(s, args...) do { \ -+ if (!silent) \ -+ printk(KERN_ERR "SQUASHFS error: "s, ## args);\ -+ } while(0) -+ -+#define WARNING(s, args...) printk(KERN_WARNING "SQUASHFS: "s, ## args) -+ -+static inline struct squashfs_inode_info *SQUASHFS_I(struct inode *inode) -+{ -+ return list_entry(inode, struct squashfs_inode_info, vfs_inode); -+} -+ -+#if defined(CONFIG_SQUASHFS_1_0_COMPATIBILITY ) || defined(CONFIG_SQUASHFS_2_0_COMPATIBILITY) -+#define SQSH_EXTERN -+extern unsigned int squashfs_read_data(struct super_block *s, char *buffer, -+ long long index, unsigned int length, -+ long long *next_index); -+extern int squashfs_get_cached_block(struct super_block *s, char *buffer, -+ long long block, unsigned int offset, -+ int length, long long *next_block, -+ unsigned int *next_offset); -+extern void release_cached_fragment(struct squashfs_sb_info *msblk, struct -+ squashfs_fragment_cache *fragment); -+extern struct squashfs_fragment_cache *get_cached_fragment(struct super_block -+ *s, long long start_block, -+ int length); -+extern struct address_space_operations squashfs_symlink_aops; -+extern struct address_space_operations squashfs_aops; -+extern struct address_space_operations squashfs_aops_4K; -+extern struct inode_operations squashfs_dir_inode_ops; -+#else -+#define SQSH_EXTERN static -+#endif -+ -+#ifdef CONFIG_SQUASHFS_1_0_COMPATIBILITY -+extern int squashfs_1_0_supported(struct squashfs_sb_info *msblk); -+#else -+static inline int squashfs_1_0_supported(struct squashfs_sb_info *msblk) -+{ -+ return 0; -+} -+#endif -+ -+#ifdef CONFIG_SQUASHFS_2_0_COMPATIBILITY -+extern int squashfs_2_0_supported(struct squashfs_sb_info *msblk); -+#else -+static inline int squashfs_2_0_supported(struct squashfs_sb_info *msblk) -+{ -+ return 0; -+} -+#endif -Index: linux-2.6.22/include/linux/squashfs_fs.h -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/include/linux/squashfs_fs.h 2007-08-28 21:56:34.000000000 +0100 -@@ -0,0 +1,911 @@ -+#ifndef SQUASHFS_FS -+#define SQUASHFS_FS -+ -+/* -+ * Squashfs -+ * -+ * Copyright (c) 2002, 2003, 2004, 2005, 2006 -+ * Phillip Lougher -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version 2, -+ * or (at your option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -+ * -+ * squashfs_fs.h -+ */ -+ -+#ifndef CONFIG_SQUASHFS_2_0_COMPATIBILITY -+#define CONFIG_SQUASHFS_2_0_COMPATIBILITY -+#endif -+ -+#ifdef CONFIG_SQUASHFS_VMALLOC -+#define SQUASHFS_ALLOC(a) vmalloc(a) -+#define SQUASHFS_FREE(a) vfree(a) -+#else -+#define SQUASHFS_ALLOC(a) kmalloc(a, GFP_KERNEL) -+#define SQUASHFS_FREE(a) kfree(a) -+#endif -+#define SQUASHFS_CACHED_FRAGMENTS CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE -+#define SQUASHFS_MAJOR 3 -+#define SQUASHFS_MINOR 0 -+#define SQUASHFS_MAGIC 0x73717368 -+#define SQUASHFS_MAGIC_SWAP 0x68737173 -+#define SQUASHFS_START 0 -+ -+/* size of metadata (inode and directory) blocks */ -+#define SQUASHFS_METADATA_SIZE 8192 -+#define SQUASHFS_METADATA_LOG 13 -+ -+/* default size of data blocks */ -+#define SQUASHFS_FILE_SIZE 65536 -+#define SQUASHFS_FILE_LOG 16 -+ -+#define SQUASHFS_FILE_MAX_SIZE 65536 -+ -+/* Max number of uids and gids */ -+#define SQUASHFS_UIDS 256 -+#define SQUASHFS_GUIDS 255 -+ -+/* Max length of filename (not 255) */ -+#define SQUASHFS_NAME_LEN 256 -+ -+#define SQUASHFS_INVALID ((long long) 0xffffffffffff) -+#define SQUASHFS_INVALID_FRAG ((unsigned int) 0xffffffff) -+#define SQUASHFS_INVALID_BLK ((long long) -1) -+#define SQUASHFS_USED_BLK ((long long) -2) -+ -+/* Filesystem flags */ -+#define SQUASHFS_NOI 0 -+#define SQUASHFS_NOD 1 -+#define SQUASHFS_CHECK 2 -+#define SQUASHFS_NOF 3 -+#define SQUASHFS_NO_FRAG 4 -+#define SQUASHFS_ALWAYS_FRAG 5 -+#define SQUASHFS_DUPLICATE 6 -+ -+#define SQUASHFS_BIT(flag, bit) ((flag >> bit) & 1) -+ -+#define SQUASHFS_UNCOMPRESSED_INODES(flags) SQUASHFS_BIT(flags, \ -+ SQUASHFS_NOI) -+ -+#define SQUASHFS_UNCOMPRESSED_DATA(flags) SQUASHFS_BIT(flags, \ -+ SQUASHFS_NOD) -+ -+#define SQUASHFS_UNCOMPRESSED_FRAGMENTS(flags) SQUASHFS_BIT(flags, \ -+ SQUASHFS_NOF) -+ -+#define SQUASHFS_NO_FRAGMENTS(flags) SQUASHFS_BIT(flags, \ -+ SQUASHFS_NO_FRAG) -+ -+#define SQUASHFS_ALWAYS_FRAGMENTS(flags) SQUASHFS_BIT(flags, \ -+ SQUASHFS_ALWAYS_FRAG) -+ -+#define SQUASHFS_DUPLICATES(flags) SQUASHFS_BIT(flags, \ -+ SQUASHFS_DUPLICATE) -+ -+#define SQUASHFS_CHECK_DATA(flags) SQUASHFS_BIT(flags, \ -+ SQUASHFS_CHECK) -+ -+#define SQUASHFS_MKFLAGS(noi, nod, check_data, nof, no_frag, always_frag, \ -+ duplicate_checking) (noi | (nod << 1) | (check_data << 2) \ -+ | (nof << 3) | (no_frag << 4) | (always_frag << 5) | \ -+ (duplicate_checking << 6)) -+ -+/* Max number of types and file types */ -+#define SQUASHFS_DIR_TYPE 1 -+#define SQUASHFS_FILE_TYPE 2 -+#define SQUASHFS_SYMLINK_TYPE 3 -+#define SQUASHFS_BLKDEV_TYPE 4 -+#define SQUASHFS_CHRDEV_TYPE 5 -+#define SQUASHFS_FIFO_TYPE 6 -+#define SQUASHFS_SOCKET_TYPE 7 -+#define SQUASHFS_LDIR_TYPE 8 -+#define SQUASHFS_LREG_TYPE 9 -+ -+/* 1.0 filesystem type definitions */ -+#define SQUASHFS_TYPES 5 -+#define SQUASHFS_IPC_TYPE 0 -+ -+/* Flag whether block is compressed or uncompressed, bit is set if block is -+ * uncompressed */ -+#define SQUASHFS_COMPRESSED_BIT (1 << 15) -+ -+#define SQUASHFS_COMPRESSED_SIZE(B) (((B) & ~SQUASHFS_COMPRESSED_BIT) ? \ -+ (B) & ~SQUASHFS_COMPRESSED_BIT : SQUASHFS_COMPRESSED_BIT) -+ -+#define SQUASHFS_COMPRESSED(B) (!((B) & SQUASHFS_COMPRESSED_BIT)) -+ -+#define SQUASHFS_COMPRESSED_BIT_BLOCK (1 << 24) -+ -+#define SQUASHFS_COMPRESSED_SIZE_BLOCK(B) (((B) & \ -+ ~SQUASHFS_COMPRESSED_BIT_BLOCK) ? (B) & \ -+ ~SQUASHFS_COMPRESSED_BIT_BLOCK : SQUASHFS_COMPRESSED_BIT_BLOCK) -+ -+#define SQUASHFS_COMPRESSED_BLOCK(B) (!((B) & SQUASHFS_COMPRESSED_BIT_BLOCK)) -+ -+/* -+ * Inode number ops. Inodes consist of a compressed block number, and an -+ * uncompressed offset within that block -+ */ -+#define SQUASHFS_INODE_BLK(a) ((unsigned int) ((a) >> 16)) -+ -+#define SQUASHFS_INODE_OFFSET(a) ((unsigned int) ((a) & 0xffff)) -+ -+#define SQUASHFS_MKINODE(A, B) ((squashfs_inode_t)(((squashfs_inode_t) (A)\ -+ << 16) + (B))) -+ -+/* Compute 32 bit VFS inode number from squashfs inode number */ -+#define SQUASHFS_MK_VFS_INODE(a, b) ((unsigned int) (((a) << 8) + \ -+ ((b) >> 2) + 1)) -+/* XXX */ -+ -+/* Translate between VFS mode and squashfs mode */ -+#define SQUASHFS_MODE(a) ((a) & 0xfff) -+ -+/* fragment and fragment table defines */ -+#define SQUASHFS_FRAGMENT_BYTES(A) (A * sizeof(struct squashfs_fragment_entry)) -+ -+#define SQUASHFS_FRAGMENT_INDEX(A) (SQUASHFS_FRAGMENT_BYTES(A) / \ -+ SQUASHFS_METADATA_SIZE) -+ -+#define SQUASHFS_FRAGMENT_INDEX_OFFSET(A) (SQUASHFS_FRAGMENT_BYTES(A) % \ -+ SQUASHFS_METADATA_SIZE) -+ -+#define SQUASHFS_FRAGMENT_INDEXES(A) ((SQUASHFS_FRAGMENT_BYTES(A) + \ -+ SQUASHFS_METADATA_SIZE - 1) / \ -+ SQUASHFS_METADATA_SIZE) -+ -+#define SQUASHFS_FRAGMENT_INDEX_BYTES(A) (SQUASHFS_FRAGMENT_INDEXES(A) *\ -+ sizeof(long long)) -+ -+/* cached data constants for filesystem */ -+#define SQUASHFS_CACHED_BLKS 8 -+ -+#define SQUASHFS_MAX_FILE_SIZE_LOG 64 -+ -+#define SQUASHFS_MAX_FILE_SIZE ((long long) 1 << \ -+ (SQUASHFS_MAX_FILE_SIZE_LOG - 2)) -+ -+#define SQUASHFS_MARKER_BYTE 0xff -+ -+/* meta index cache */ -+#define SQUASHFS_META_INDEXES (SQUASHFS_METADATA_SIZE / sizeof(unsigned int)) -+#define SQUASHFS_META_ENTRIES 31 -+#define SQUASHFS_META_NUMBER 8 -+#define SQUASHFS_SLOTS 4 -+ -+struct meta_entry { -+ long long data_block; -+ unsigned int index_block; -+ unsigned short offset; -+ unsigned short pad; -+}; -+ -+struct meta_index { -+ unsigned int inode_number; -+ unsigned int offset; -+ unsigned short entries; -+ unsigned short skip; -+ unsigned short locked; -+ unsigned short pad; -+ struct meta_entry meta_entry[SQUASHFS_META_ENTRIES]; -+}; -+ -+ -+/* -+ * definitions for structures on disk -+ */ -+ -+typedef long long squashfs_block_t; -+typedef long long squashfs_inode_t; -+ -+struct squashfs_super_block { -+ unsigned int s_magic; -+ unsigned int inodes; -+ unsigned int bytes_used_2; -+ unsigned int uid_start_2; -+ unsigned int guid_start_2; -+ unsigned int inode_table_start_2; -+ unsigned int directory_table_start_2; -+ unsigned int s_major:16; -+ unsigned int s_minor:16; -+ unsigned int block_size_1:16; -+ unsigned int block_log:16; -+ unsigned int flags:8; -+ unsigned int no_uids:8; -+ unsigned int no_guids:8; -+ unsigned int mkfs_time /* time of filesystem creation */; -+ squashfs_inode_t root_inode; -+ unsigned int block_size; -+ unsigned int fragments; -+ unsigned int fragment_table_start_2; -+ long long bytes_used; -+ long long uid_start; -+ long long guid_start; -+ long long inode_table_start; -+ long long directory_table_start; -+ long long fragment_table_start; -+ long long unused; -+} __attribute__ ((packed)); -+ -+struct squashfs_dir_index { -+ unsigned int index; -+ unsigned int start_block; -+ unsigned char size; -+ unsigned char name[0]; -+} __attribute__ ((packed)); -+ -+#define SQUASHFS_BASE_INODE_HEADER \ -+ unsigned int inode_type:4; \ -+ unsigned int mode:12; \ -+ unsigned int uid:8; \ -+ unsigned int guid:8; \ -+ unsigned int mtime; \ -+ unsigned int inode_number; -+ -+struct squashfs_base_inode_header { -+ SQUASHFS_BASE_INODE_HEADER; -+} __attribute__ ((packed)); -+ -+struct squashfs_ipc_inode_header { -+ SQUASHFS_BASE_INODE_HEADER; -+ unsigned int nlink; -+} __attribute__ ((packed)); -+ -+struct squashfs_dev_inode_header { -+ SQUASHFS_BASE_INODE_HEADER; -+ unsigned int nlink; -+ unsigned short rdev; -+} __attribute__ ((packed)); -+ -+struct squashfs_symlink_inode_header { -+ SQUASHFS_BASE_INODE_HEADER; -+ unsigned int nlink; -+ unsigned short symlink_size; -+ char symlink[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_reg_inode_header { -+ SQUASHFS_BASE_INODE_HEADER; -+ squashfs_block_t start_block; -+ unsigned int fragment; -+ unsigned int offset; -+ unsigned int file_size; -+ unsigned short block_list[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_lreg_inode_header { -+ SQUASHFS_BASE_INODE_HEADER; -+ unsigned int nlink; -+ squashfs_block_t start_block; -+ unsigned int fragment; -+ unsigned int offset; -+ long long file_size; -+ unsigned short block_list[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_dir_inode_header { -+ SQUASHFS_BASE_INODE_HEADER; -+ unsigned int nlink; -+ unsigned int file_size:19; -+ unsigned int offset:13; -+ unsigned int start_block; -+ unsigned int parent_inode; -+} __attribute__ ((packed)); -+ -+struct squashfs_ldir_inode_header { -+ SQUASHFS_BASE_INODE_HEADER; -+ unsigned int nlink; -+ unsigned int file_size:27; -+ unsigned int offset:13; -+ unsigned int start_block; -+ unsigned int i_count:16; -+ unsigned int parent_inode; -+ struct squashfs_dir_index index[0]; -+} __attribute__ ((packed)); -+ -+union squashfs_inode_header { -+ struct squashfs_base_inode_header base; -+ struct squashfs_dev_inode_header dev; -+ struct squashfs_symlink_inode_header symlink; -+ struct squashfs_reg_inode_header reg; -+ struct squashfs_lreg_inode_header lreg; -+ struct squashfs_dir_inode_header dir; -+ struct squashfs_ldir_inode_header ldir; -+ struct squashfs_ipc_inode_header ipc; -+}; -+ -+struct squashfs_dir_entry { -+ unsigned int offset:13; -+ unsigned int type:3; -+ unsigned int size:8; -+ int inode_number:16; -+ char name[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_dir_header { -+ unsigned int count:8; -+ unsigned int start_block; -+ unsigned int inode_number; -+} __attribute__ ((packed)); -+ -+struct squashfs_fragment_entry { -+ long long start_block; -+ unsigned int size; -+ unsigned int unused; -+} __attribute__ ((packed)); -+ -+extern int squashfs_uncompress_block(void *d, int dstlen, void *s, int srclen); -+extern int squashfs_uncompress_init(void); -+extern int squashfs_uncompress_exit(void); -+ -+/* -+ * macros to convert each packed bitfield structure from little endian to big -+ * endian and vice versa. These are needed when creating or using a filesystem -+ * on a machine with different byte ordering to the target architecture. -+ * -+ */ -+ -+#define SQUASHFS_SWAP_START \ -+ int bits;\ -+ int b_pos;\ -+ unsigned long long val;\ -+ unsigned char *s;\ -+ unsigned char *d; -+ -+#define SQUASHFS_SWAP_SUPER_BLOCK(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_super_block));\ -+ SQUASHFS_SWAP((s)->s_magic, d, 0, 32);\ -+ SQUASHFS_SWAP((s)->inodes, d, 32, 32);\ -+ SQUASHFS_SWAP((s)->bytes_used_2, d, 64, 32);\ -+ SQUASHFS_SWAP((s)->uid_start_2, d, 96, 32);\ -+ SQUASHFS_SWAP((s)->guid_start_2, d, 128, 32);\ -+ SQUASHFS_SWAP((s)->inode_table_start_2, d, 160, 32);\ -+ SQUASHFS_SWAP((s)->directory_table_start_2, d, 192, 32);\ -+ SQUASHFS_SWAP((s)->s_major, d, 224, 16);\ -+ SQUASHFS_SWAP((s)->s_minor, d, 240, 16);\ -+ SQUASHFS_SWAP((s)->block_size_1, d, 256, 16);\ -+ SQUASHFS_SWAP((s)->block_log, d, 272, 16);\ -+ SQUASHFS_SWAP((s)->flags, d, 288, 8);\ -+ SQUASHFS_SWAP((s)->no_uids, d, 296, 8);\ -+ SQUASHFS_SWAP((s)->no_guids, d, 304, 8);\ -+ SQUASHFS_SWAP((s)->mkfs_time, d, 312, 32);\ -+ SQUASHFS_SWAP((s)->root_inode, d, 344, 64);\ -+ SQUASHFS_SWAP((s)->block_size, d, 408, 32);\ -+ SQUASHFS_SWAP((s)->fragments, d, 440, 32);\ -+ SQUASHFS_SWAP((s)->fragment_table_start_2, d, 472, 32);\ -+ SQUASHFS_SWAP((s)->bytes_used, d, 504, 64);\ -+ SQUASHFS_SWAP((s)->uid_start, d, 568, 64);\ -+ SQUASHFS_SWAP((s)->guid_start, d, 632, 64);\ -+ SQUASHFS_SWAP((s)->inode_table_start, d, 696, 64);\ -+ SQUASHFS_SWAP((s)->directory_table_start, d, 760, 64);\ -+ SQUASHFS_SWAP((s)->fragment_table_start, d, 824, 64);\ -+ SQUASHFS_SWAP((s)->unused, d, 888, 64);\ -+} -+ -+#define SQUASHFS_SWAP_BASE_INODE_CORE(s, d, n)\ -+ SQUASHFS_MEMSET(s, d, n);\ -+ SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\ -+ SQUASHFS_SWAP((s)->mode, d, 4, 12);\ -+ SQUASHFS_SWAP((s)->uid, d, 16, 8);\ -+ SQUASHFS_SWAP((s)->guid, d, 24, 8);\ -+ SQUASHFS_SWAP((s)->mtime, d, 32, 32);\ -+ SQUASHFS_SWAP((s)->inode_number, d, 64, 32); -+ -+#define SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, n) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, n)\ -+} -+ -+#define SQUASHFS_SWAP_IPC_INODE_HEADER(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ -+ sizeof(struct squashfs_ipc_inode_header))\ -+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ -+} -+ -+#define SQUASHFS_SWAP_DEV_INODE_HEADER(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ -+ sizeof(struct squashfs_dev_inode_header)); \ -+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ -+ SQUASHFS_SWAP((s)->rdev, d, 128, 16);\ -+} -+ -+#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ -+ sizeof(struct squashfs_symlink_inode_header));\ -+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ -+ SQUASHFS_SWAP((s)->symlink_size, d, 128, 16);\ -+} -+ -+#define SQUASHFS_SWAP_REG_INODE_HEADER(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ -+ sizeof(struct squashfs_reg_inode_header));\ -+ SQUASHFS_SWAP((s)->start_block, d, 96, 64);\ -+ SQUASHFS_SWAP((s)->fragment, d, 160, 32);\ -+ SQUASHFS_SWAP((s)->offset, d, 192, 32);\ -+ SQUASHFS_SWAP((s)->file_size, d, 224, 32);\ -+} -+ -+#define SQUASHFS_SWAP_LREG_INODE_HEADER(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ -+ sizeof(struct squashfs_lreg_inode_header));\ -+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ -+ SQUASHFS_SWAP((s)->start_block, d, 128, 64);\ -+ SQUASHFS_SWAP((s)->fragment, d, 192, 32);\ -+ SQUASHFS_SWAP((s)->offset, d, 224, 32);\ -+ SQUASHFS_SWAP((s)->file_size, d, 256, 64);\ -+} -+ -+#define SQUASHFS_SWAP_DIR_INODE_HEADER(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ -+ sizeof(struct squashfs_dir_inode_header));\ -+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ -+ SQUASHFS_SWAP((s)->file_size, d, 128, 19);\ -+ SQUASHFS_SWAP((s)->offset, d, 147, 13);\ -+ SQUASHFS_SWAP((s)->start_block, d, 160, 32);\ -+ SQUASHFS_SWAP((s)->parent_inode, d, 192, 32);\ -+} -+ -+#define SQUASHFS_SWAP_LDIR_INODE_HEADER(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ -+ sizeof(struct squashfs_ldir_inode_header));\ -+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ -+ SQUASHFS_SWAP((s)->file_size, d, 128, 27);\ -+ SQUASHFS_SWAP((s)->offset, d, 155, 13);\ -+ SQUASHFS_SWAP((s)->start_block, d, 168, 32);\ -+ SQUASHFS_SWAP((s)->i_count, d, 200, 16);\ -+ SQUASHFS_SWAP((s)->parent_inode, d, 216, 32);\ -+} -+ -+#define SQUASHFS_SWAP_DIR_INDEX(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_index));\ -+ SQUASHFS_SWAP((s)->index, d, 0, 32);\ -+ SQUASHFS_SWAP((s)->start_block, d, 32, 32);\ -+ SQUASHFS_SWAP((s)->size, d, 64, 8);\ -+} -+ -+#define SQUASHFS_SWAP_DIR_HEADER(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_header));\ -+ SQUASHFS_SWAP((s)->count, d, 0, 8);\ -+ SQUASHFS_SWAP((s)->start_block, d, 8, 32);\ -+ SQUASHFS_SWAP((s)->inode_number, d, 40, 32);\ -+} -+ -+#define SQUASHFS_SWAP_DIR_ENTRY(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_entry));\ -+ SQUASHFS_SWAP((s)->offset, d, 0, 13);\ -+ SQUASHFS_SWAP((s)->type, d, 13, 3);\ -+ SQUASHFS_SWAP((s)->size, d, 16, 8);\ -+ SQUASHFS_SWAP((s)->inode_number, d, 24, 16);\ -+} -+ -+#define SQUASHFS_SWAP_FRAGMENT_ENTRY(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_fragment_entry));\ -+ SQUASHFS_SWAP((s)->start_block, d, 0, 64);\ -+ SQUASHFS_SWAP((s)->size, d, 64, 32);\ -+} -+ -+#define SQUASHFS_SWAP_SHORTS(s, d, n) {\ -+ int entry;\ -+ int bit_position;\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, n * 2);\ -+ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \ -+ 16)\ -+ SQUASHFS_SWAP(s[entry], d, bit_position, 16);\ -+} -+ -+#define SQUASHFS_SWAP_INTS(s, d, n) {\ -+ int entry;\ -+ int bit_position;\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, n * 4);\ -+ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \ -+ 32)\ -+ SQUASHFS_SWAP(s[entry], d, bit_position, 32);\ -+} -+ -+#define SQUASHFS_SWAP_LONG_LONGS(s, d, n) {\ -+ int entry;\ -+ int bit_position;\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, n * 8);\ -+ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \ -+ 64)\ -+ SQUASHFS_SWAP(s[entry], d, bit_position, 64);\ -+} -+ -+#define SQUASHFS_SWAP_DATA(s, d, n, bits) {\ -+ int entry;\ -+ int bit_position;\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, n * bits / 8);\ -+ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \ -+ bits)\ -+ SQUASHFS_SWAP(s[entry], d, bit_position, bits);\ -+} -+ -+#define SQUASHFS_SWAP_FRAGMENT_INDEXES(s, d, n) SQUASHFS_SWAP_LONG_LONGS(s, d, n) -+ -+#ifdef CONFIG_SQUASHFS_1_0_COMPATIBILITY -+ -+struct squashfs_base_inode_header_1 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:4; /* index into uid table */ -+ unsigned int guid:4; /* index into guid table */ -+} __attribute__ ((packed)); -+ -+struct squashfs_ipc_inode_header_1 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:4; /* index into uid table */ -+ unsigned int guid:4; /* index into guid table */ -+ unsigned int type:4; -+ unsigned int offset:4; -+} __attribute__ ((packed)); -+ -+struct squashfs_dev_inode_header_1 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:4; /* index into uid table */ -+ unsigned int guid:4; /* index into guid table */ -+ unsigned short rdev; -+} __attribute__ ((packed)); -+ -+struct squashfs_symlink_inode_header_1 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:4; /* index into uid table */ -+ unsigned int guid:4; /* index into guid table */ -+ unsigned short symlink_size; -+ char symlink[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_reg_inode_header_1 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:4; /* index into uid table */ -+ unsigned int guid:4; /* index into guid table */ -+ unsigned int mtime; -+ unsigned int start_block; -+ unsigned int file_size:32; -+ unsigned short block_list[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_dir_inode_header_1 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:4; /* index into uid table */ -+ unsigned int guid:4; /* index into guid table */ -+ unsigned int file_size:19; -+ unsigned int offset:13; -+ unsigned int mtime; -+ unsigned int start_block:24; -+} __attribute__ ((packed)); -+ -+#define SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, n) \ -+ SQUASHFS_MEMSET(s, d, n);\ -+ SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\ -+ SQUASHFS_SWAP((s)->mode, d, 4, 12);\ -+ SQUASHFS_SWAP((s)->uid, d, 16, 4);\ -+ SQUASHFS_SWAP((s)->guid, d, 20, 4); -+ -+#define SQUASHFS_SWAP_BASE_INODE_HEADER_1(s, d, n) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, n)\ -+} -+ -+#define SQUASHFS_SWAP_IPC_INODE_HEADER_1(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \ -+ sizeof(struct squashfs_ipc_inode_header_1));\ -+ SQUASHFS_SWAP((s)->type, d, 24, 4);\ -+ SQUASHFS_SWAP((s)->offset, d, 28, 4);\ -+} -+ -+#define SQUASHFS_SWAP_DEV_INODE_HEADER_1(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \ -+ sizeof(struct squashfs_dev_inode_header_1));\ -+ SQUASHFS_SWAP((s)->rdev, d, 24, 16);\ -+} -+ -+#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER_1(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \ -+ sizeof(struct squashfs_symlink_inode_header_1));\ -+ SQUASHFS_SWAP((s)->symlink_size, d, 24, 16);\ -+} -+ -+#define SQUASHFS_SWAP_REG_INODE_HEADER_1(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \ -+ sizeof(struct squashfs_reg_inode_header_1));\ -+ SQUASHFS_SWAP((s)->mtime, d, 24, 32);\ -+ SQUASHFS_SWAP((s)->start_block, d, 56, 32);\ -+ SQUASHFS_SWAP((s)->file_size, d, 88, 32);\ -+} -+ -+#define SQUASHFS_SWAP_DIR_INODE_HEADER_1(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \ -+ sizeof(struct squashfs_dir_inode_header_1));\ -+ SQUASHFS_SWAP((s)->file_size, d, 24, 19);\ -+ SQUASHFS_SWAP((s)->offset, d, 43, 13);\ -+ SQUASHFS_SWAP((s)->mtime, d, 56, 32);\ -+ SQUASHFS_SWAP((s)->start_block, d, 88, 24);\ -+} -+ -+#endif -+ -+#ifdef CONFIG_SQUASHFS_2_0_COMPATIBILITY -+ -+struct squashfs_dir_index_2 { -+ unsigned int index:27; -+ unsigned int start_block:29; -+ unsigned char size; -+ unsigned char name[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_base_inode_header_2 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:8; /* index into uid table */ -+ unsigned int guid:8; /* index into guid table */ -+} __attribute__ ((packed)); -+ -+struct squashfs_ipc_inode_header_2 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:8; /* index into uid table */ -+ unsigned int guid:8; /* index into guid table */ -+} __attribute__ ((packed)); -+ -+struct squashfs_dev_inode_header_2 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:8; /* index into uid table */ -+ unsigned int guid:8; /* index into guid table */ -+ unsigned short rdev; -+} __attribute__ ((packed)); -+ -+struct squashfs_symlink_inode_header_2 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:8; /* index into uid table */ -+ unsigned int guid:8; /* index into guid table */ -+ unsigned short symlink_size; -+ char symlink[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_reg_inode_header_2 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:8; /* index into uid table */ -+ unsigned int guid:8; /* index into guid table */ -+ unsigned int mtime; -+ unsigned int start_block; -+ unsigned int fragment; -+ unsigned int offset; -+ unsigned int file_size:32; -+ unsigned short block_list[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_dir_inode_header_2 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:8; /* index into uid table */ -+ unsigned int guid:8; /* index into guid table */ -+ unsigned int file_size:19; -+ unsigned int offset:13; -+ unsigned int mtime; -+ unsigned int start_block:24; -+} __attribute__ ((packed)); -+ -+struct squashfs_ldir_inode_header_2 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:8; /* index into uid table */ -+ unsigned int guid:8; /* index into guid table */ -+ unsigned int file_size:27; -+ unsigned int offset:13; -+ unsigned int mtime; -+ unsigned int start_block:24; -+ unsigned int i_count:16; -+ struct squashfs_dir_index_2 index[0]; -+} __attribute__ ((packed)); -+ -+union squashfs_inode_header_2 { -+ struct squashfs_base_inode_header_2 base; -+ struct squashfs_dev_inode_header_2 dev; -+ struct squashfs_symlink_inode_header_2 symlink; -+ struct squashfs_reg_inode_header_2 reg; -+ struct squashfs_dir_inode_header_2 dir; -+ struct squashfs_ldir_inode_header_2 ldir; -+ struct squashfs_ipc_inode_header_2 ipc; -+}; -+ -+struct squashfs_dir_header_2 { -+ unsigned int count:8; -+ unsigned int start_block:24; -+} __attribute__ ((packed)); -+ -+struct squashfs_dir_entry_2 { -+ unsigned int offset:13; -+ unsigned int type:3; -+ unsigned int size:8; -+ char name[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_fragment_entry_2 { -+ unsigned int start_block; -+ unsigned int size; -+} __attribute__ ((packed)); -+ -+#define SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, n)\ -+ SQUASHFS_MEMSET(s, d, n);\ -+ SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\ -+ SQUASHFS_SWAP((s)->mode, d, 4, 12);\ -+ SQUASHFS_SWAP((s)->uid, d, 16, 8);\ -+ SQUASHFS_SWAP((s)->guid, d, 24, 8);\ -+ -+#define SQUASHFS_SWAP_BASE_INODE_HEADER_2(s, d, n) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, n)\ -+} -+ -+#define SQUASHFS_SWAP_IPC_INODE_HEADER_2(s, d) \ -+ SQUASHFS_SWAP_BASE_INODE_HEADER_2(s, d, sizeof(struct squashfs_ipc_inode_header_2)) -+ -+#define SQUASHFS_SWAP_DEV_INODE_HEADER_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \ -+ sizeof(struct squashfs_dev_inode_header_2)); \ -+ SQUASHFS_SWAP((s)->rdev, d, 32, 16);\ -+} -+ -+#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \ -+ sizeof(struct squashfs_symlink_inode_header_2));\ -+ SQUASHFS_SWAP((s)->symlink_size, d, 32, 16);\ -+} -+ -+#define SQUASHFS_SWAP_REG_INODE_HEADER_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \ -+ sizeof(struct squashfs_reg_inode_header_2));\ -+ SQUASHFS_SWAP((s)->mtime, d, 32, 32);\ -+ SQUASHFS_SWAP((s)->start_block, d, 64, 32);\ -+ SQUASHFS_SWAP((s)->fragment, d, 96, 32);\ -+ SQUASHFS_SWAP((s)->offset, d, 128, 32);\ -+ SQUASHFS_SWAP((s)->file_size, d, 160, 32);\ -+} -+ -+#define SQUASHFS_SWAP_DIR_INODE_HEADER_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \ -+ sizeof(struct squashfs_dir_inode_header_2));\ -+ SQUASHFS_SWAP((s)->file_size, d, 32, 19);\ -+ SQUASHFS_SWAP((s)->offset, d, 51, 13);\ -+ SQUASHFS_SWAP((s)->mtime, d, 64, 32);\ -+ SQUASHFS_SWAP((s)->start_block, d, 96, 24);\ -+} -+ -+#define SQUASHFS_SWAP_LDIR_INODE_HEADER_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \ -+ sizeof(struct squashfs_ldir_inode_header_2));\ -+ SQUASHFS_SWAP((s)->file_size, d, 32, 27);\ -+ SQUASHFS_SWAP((s)->offset, d, 59, 13);\ -+ SQUASHFS_SWAP((s)->mtime, d, 72, 32);\ -+ SQUASHFS_SWAP((s)->start_block, d, 104, 24);\ -+ SQUASHFS_SWAP((s)->i_count, d, 128, 16);\ -+} -+ -+#define SQUASHFS_SWAP_DIR_INDEX_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_index_2));\ -+ SQUASHFS_SWAP((s)->index, d, 0, 27);\ -+ SQUASHFS_SWAP((s)->start_block, d, 27, 29);\ -+ SQUASHFS_SWAP((s)->size, d, 56, 8);\ -+} -+#define SQUASHFS_SWAP_DIR_HEADER_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_header_2));\ -+ SQUASHFS_SWAP((s)->count, d, 0, 8);\ -+ SQUASHFS_SWAP((s)->start_block, d, 8, 24);\ -+} -+ -+#define SQUASHFS_SWAP_DIR_ENTRY_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_entry_2));\ -+ SQUASHFS_SWAP((s)->offset, d, 0, 13);\ -+ SQUASHFS_SWAP((s)->type, d, 13, 3);\ -+ SQUASHFS_SWAP((s)->size, d, 16, 8);\ -+} -+ -+#define SQUASHFS_SWAP_FRAGMENT_ENTRY_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_fragment_entry_2));\ -+ SQUASHFS_SWAP((s)->start_block, d, 0, 32);\ -+ SQUASHFS_SWAP((s)->size, d, 32, 32);\ -+} -+ -+#define SQUASHFS_SWAP_FRAGMENT_INDEXES_2(s, d, n) SQUASHFS_SWAP_INTS(s, d, n) -+ -+/* fragment and fragment table defines */ -+#define SQUASHFS_FRAGMENT_BYTES_2(A) (A * sizeof(struct squashfs_fragment_entry_2)) -+ -+#define SQUASHFS_FRAGMENT_INDEX_2(A) (SQUASHFS_FRAGMENT_BYTES_2(A) / \ -+ SQUASHFS_METADATA_SIZE) -+ -+#define SQUASHFS_FRAGMENT_INDEX_OFFSET_2(A) (SQUASHFS_FRAGMENT_BYTES_2(A) % \ -+ SQUASHFS_METADATA_SIZE) -+ -+#define SQUASHFS_FRAGMENT_INDEXES_2(A) ((SQUASHFS_FRAGMENT_BYTES_2(A) + \ -+ SQUASHFS_METADATA_SIZE - 1) / \ -+ SQUASHFS_METADATA_SIZE) -+ -+#define SQUASHFS_FRAGMENT_INDEX_BYTES_2(A) (SQUASHFS_FRAGMENT_INDEXES_2(A) *\ -+ sizeof(int)) -+ -+#endif -+ -+#ifdef __KERNEL__ -+ -+/* -+ * macros used to swap each structure entry, taking into account -+ * bitfields and different bitfield placing conventions on differing -+ * architectures -+ */ -+ -+#include -+ -+#ifdef __BIG_ENDIAN -+ /* convert from little endian to big endian */ -+#define SQUASHFS_SWAP(value, p, pos, tbits) _SQUASHFS_SWAP(value, p, pos, \ -+ tbits, b_pos) -+#else -+ /* convert from big endian to little endian */ -+#define SQUASHFS_SWAP(value, p, pos, tbits) _SQUASHFS_SWAP(value, p, pos, \ -+ tbits, 64 - tbits - b_pos) -+#endif -+ -+#define _SQUASHFS_SWAP(value, p, pos, tbits, SHIFT) {\ -+ b_pos = pos % 8;\ -+ val = 0;\ -+ s = (unsigned char *)p + (pos / 8);\ -+ d = ((unsigned char *) &val) + 7;\ -+ for(bits = 0; bits < (tbits + b_pos); bits += 8) \ -+ *d-- = *s++;\ -+ value = (val >> (SHIFT))/* & ((1 << tbits) - 1)*/;\ -+} -+ -+#define SQUASHFS_MEMSET(s, d, n) memset(s, 0, n); -+ -+#endif -+#endif -Index: linux-2.6.22/include/linux/squashfs_fs_i.h -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/include/linux/squashfs_fs_i.h 2007-08-28 21:56:34.000000000 +0100 -@@ -0,0 +1,45 @@ -+#ifndef SQUASHFS_FS_I -+#define SQUASHFS_FS_I -+/* -+ * Squashfs -+ * -+ * Copyright (c) 2002, 2003, 2004, 2005, 2006 -+ * Phillip Lougher -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version 2, -+ * or (at your option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -+ * -+ * squashfs_fs_i.h -+ */ -+ -+struct squashfs_inode_info { -+ long long start_block; -+ unsigned int offset; -+ union { -+ struct { -+ long long fragment_start_block; -+ unsigned int fragment_size; -+ unsigned int fragment_offset; -+ long long block_list_start; -+ } s1; -+ struct { -+ long long directory_index_start; -+ unsigned int directory_index_offset; -+ unsigned int directory_index_count; -+ unsigned int parent_inode; -+ } s2; -+ } u; -+ struct inode vfs_inode; -+}; -+#endif -Index: linux-2.6.22/include/linux/squashfs_fs_sb.h -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/include/linux/squashfs_fs_sb.h 2007-08-28 21:56:34.000000000 +0100 -@@ -0,0 +1,74 @@ -+#ifndef SQUASHFS_FS_SB -+#define SQUASHFS_FS_SB -+/* -+ * Squashfs -+ * -+ * Copyright (c) 2002, 2003, 2004, 2005, 2006 -+ * Phillip Lougher -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version 2, -+ * or (at your option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -+ * -+ * squashfs_fs_sb.h -+ */ -+ -+#include -+ -+struct squashfs_cache { -+ long long block; -+ int length; -+ long long next_index; -+ char *data; -+}; -+ -+struct squashfs_fragment_cache { -+ long long block; -+ int length; -+ unsigned int locked; -+ char *data; -+}; -+ -+struct squashfs_sb_info { -+ struct squashfs_super_block sblk; -+ int devblksize; -+ int devblksize_log2; -+ int swap; -+ struct squashfs_cache *block_cache; -+ struct squashfs_fragment_cache *fragment; -+ int next_cache; -+ int next_fragment; -+ int next_meta_index; -+ unsigned int *uid; -+ unsigned int *guid; -+ long long *fragment_index; -+ unsigned int *fragment_index_2; -+ unsigned int read_size; -+ char *read_data; -+ char *read_page; -+ struct semaphore read_data_mutex; -+ struct semaphore read_page_mutex; -+ struct semaphore block_cache_mutex; -+ struct semaphore fragment_mutex; -+ struct semaphore meta_index_mutex; -+ wait_queue_head_t waitq; -+ wait_queue_head_t fragment_wait_queue; -+ struct meta_index *meta_index; -+ struct inode *(*iget)(struct super_block *s, squashfs_inode_t \ -+ inode); -+ long long (*read_blocklist)(struct inode *inode, int \ -+ index, int readahead_blks, char *block_list, \ -+ unsigned short **block_p, unsigned int *bsize); -+ int (*read_fragment_index_table)(struct super_block *s); -+}; -+#endif -Index: linux-2.6.22/init/do_mounts_rd.c -=================================================================== ---- linux-2.6.22.orig/init/do_mounts_rd.c 2007-08-28 21:54:14.000000000 +0100 -+++ linux-2.6.22/init/do_mounts_rd.c 2007-08-28 21:56:34.000000000 +0100 -@@ -5,6 +5,7 @@ - #include - #include - #include -+#include - #include - #include - -@@ -39,6 +40,7 @@ static int __init crd_load(int in_fd, in - * numbers could not be found. - * - * We currently check for the following magic numbers: -+ * squashfs - * minix - * ext2 - * romfs -@@ -53,6 +55,7 @@ identify_ramdisk_image(int fd, int start - struct ext2_super_block *ext2sb; - struct romfs_super_block *romfsb; - struct cramfs_super *cramfsb; -+ struct squashfs_super_block *squashfsb; - int nblocks = -1; - unsigned char *buf; - -@@ -64,6 +67,7 @@ identify_ramdisk_image(int fd, int start - ext2sb = (struct ext2_super_block *) buf; - romfsb = (struct romfs_super_block *) buf; - cramfsb = (struct cramfs_super *) buf; -+ squashfsb = (struct squashfs_super_block *) buf; - memset(buf, 0xe5, size); - - /* -@@ -101,6 +105,15 @@ identify_ramdisk_image(int fd, int start - goto done; - } - -+ /* squashfs is at block zero too */ -+ if (squashfsb->s_magic == SQUASHFS_MAGIC) { -+ printk(KERN_NOTICE -+ "RAMDISK: squashfs filesystem found at block %d\n", -+ start_block); -+ nblocks = (squashfsb->bytes_used+BLOCK_SIZE-1)>>BLOCK_SIZE_BITS; -+ goto done; -+ } -+ - /* - * Read block 1 to test for minix and ext2 superblock - */ diff --git a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/squashfs3.2-2.6.20-r0.patch b/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/squashfs3.2-2.6.20-r0.patch deleted file mode 100644 index 3870b317e..000000000 --- a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/squashfs3.2-2.6.20-r0.patch +++ /dev/null @@ -1,4376 +0,0 @@ ---- linux-2.6.24-rc1.orig/fs/Kconfig -+++ linux-2.6.24-rc1/fs/Kconfig -@@ -1405,6 +1405,71 @@ - - If unsure, say N. - -+config SQUASHFS -+ tristate "SquashFS 3.2 - Squashed file system support" -+ select ZLIB_INFLATE -+ help -+ Saying Y here includes support for SquashFS 3.2 (a Compressed Read-Only File -+ System). Squashfs is a highly compressed read-only filesystem for Linux. -+ It uses zlib compression to compress both files, inodes and directories. -+ Inodes in the system are very small and all blocks are packed to minimise -+ data overhead. Block sizes greater than 4K are supported up to a maximum of 64K. -+ SquashFS 3.1 supports 64 bit filesystems and files (larger than 4GB), full -+ uid/gid information, hard links and timestamps. -+ -+ Squashfs is intended for general read-only filesystem use, for archival -+ use (i.e. in cases where a .tar.gz file may be used), and in embedded -+ systems where low overhead is needed. Further information and filesystem tools -+ are available from http://squashfs.sourceforge.net. -+ -+ If you want to compile this as a module ( = code which can be -+ inserted in and removed from the running kernel whenever you want), -+ say M here and read . The module -+ will be called squashfs. Note that the root file system (the one -+ containing the directory /) cannot be compiled as a module. -+ -+ If unsure, say N. -+ -+config SQUASHFS_EMBEDDED -+ -+ bool "Additional options for memory-constrained systems" -+ depends on SQUASHFS -+ default n -+ help -+ Saying Y here allows you to specify cache sizes and how Squashfs -+ allocates memory. This is only intended for memory constrained -+ systems. -+ -+ If unsure, say N. -+ -+config SQUASHFS_FRAGMENT_CACHE_SIZE -+ int "Number of fragments cached" if SQUASHFS_EMBEDDED -+ depends on SQUASHFS -+ default "3" -+ help -+ By default SquashFS caches the last 3 fragments read from -+ the filesystem. Increasing this amount may mean SquashFS -+ has to re-read fragments less often from disk, at the expense -+ of extra system memory. Decreasing this amount will mean -+ SquashFS uses less memory at the expense of extra reads from disk. -+ -+ Note there must be at least one cached fragment. Anything -+ much more than three will probably not make much difference. -+ -+config SQUASHFS_VMALLOC -+ bool "Use Vmalloc rather than Kmalloc" if SQUASHFS_EMBEDDED -+ depends on SQUASHFS -+ default n -+ help -+ By default SquashFS uses kmalloc to obtain fragment cache memory. -+ Kmalloc memory is the standard kernel allocator, but it can fail -+ on memory constrained systems. Because of the way Vmalloc works, -+ Vmalloc can succeed when kmalloc fails. Specifying this option -+ will make SquashFS always use Vmalloc to allocate the -+ fragment cache memory. -+ -+ If unsure, say N. -+ - config VXFS_FS - tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)" - depends on BLOCK ---- linux-2.6.24-rc1.orig/fs/Makefile -+++ linux-2.6.24-rc1/fs/Makefile -@@ -72,6 +72,7 @@ - obj-$(CONFIG_JBD2) += jbd2/ - obj-$(CONFIG_EXT2_FS) += ext2/ - obj-$(CONFIG_CRAMFS) += cramfs/ -+obj-$(CONFIG_SQUASHFS) += squashfs/ - obj-y += ramfs/ - obj-$(CONFIG_HUGETLBFS) += hugetlbfs/ - obj-$(CONFIG_CODA_FS) += coda/ ---- /dev/null -+++ linux-2.6.24-rc1/fs/squashfs/inode.c -@@ -0,0 +1,2329 @@ -+/* -+ * Squashfs - a compressed read only filesystem for Linux -+ * -+ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007 -+ * Phillip Lougher -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version 2, -+ * or (at your option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -+ * -+ * inode.c -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include "squashfs.h" -+ -+static void vfs_read_inode(struct inode *i); -+static struct dentry *squashfs_get_parent(struct dentry *child); -+static int squashfs_read_inode(struct inode *i, squashfs_inode_t inode); -+static int squashfs_statfs(struct dentry *, struct kstatfs *); -+static int squashfs_symlink_readpage(struct file *file, struct page *page); -+static long long read_blocklist(struct inode *inode, int index, -+ int readahead_blks, char *block_list, -+ unsigned short **block_p, unsigned int *bsize); -+static int squashfs_readpage(struct file *file, struct page *page); -+static int squashfs_readpage4K(struct file *file, struct page *page); -+static int squashfs_readdir(struct file *, void *, filldir_t); -+static struct dentry *squashfs_lookup(struct inode *, struct dentry *, -+ struct nameidata *); -+static int squashfs_remount(struct super_block *s, int *flags, char *data); -+static void squashfs_put_super(struct super_block *); -+static int squashfs_get_sb(struct file_system_type *,int, const char *, void *, -+ struct vfsmount *); -+static struct inode *squashfs_alloc_inode(struct super_block *sb); -+static void squashfs_destroy_inode(struct inode *inode); -+static int init_inodecache(void); -+static void destroy_inodecache(void); -+ -+static struct file_system_type squashfs_fs_type = { -+ .owner = THIS_MODULE, -+ .name = "squashfs", -+ .get_sb = squashfs_get_sb, -+ .kill_sb = kill_block_super, -+ .fs_flags = FS_REQUIRES_DEV -+}; -+ -+static const unsigned char squashfs_filetype_table[] = { -+ DT_UNKNOWN, DT_DIR, DT_REG, DT_LNK, DT_BLK, DT_CHR, DT_FIFO, DT_SOCK -+}; -+ -+static struct super_operations squashfs_super_ops = { -+ .alloc_inode = squashfs_alloc_inode, -+ .destroy_inode = squashfs_destroy_inode, -+ .statfs = squashfs_statfs, -+ .put_super = squashfs_put_super, -+ .remount_fs = squashfs_remount -+}; -+ -+static struct super_operations squashfs_export_super_ops = { -+ .alloc_inode = squashfs_alloc_inode, -+ .destroy_inode = squashfs_destroy_inode, -+ .statfs = squashfs_statfs, -+ .put_super = squashfs_put_super, -+ .read_inode = vfs_read_inode -+}; -+ -+static struct export_operations squashfs_export_ops = { -+ .get_parent = squashfs_get_parent -+}; -+ -+SQSH_EXTERN const struct address_space_operations squashfs_symlink_aops = { -+ .readpage = squashfs_symlink_readpage -+}; -+ -+SQSH_EXTERN const struct address_space_operations squashfs_aops = { -+ .readpage = squashfs_readpage -+}; -+ -+SQSH_EXTERN const struct address_space_operations squashfs_aops_4K = { -+ .readpage = squashfs_readpage4K -+}; -+ -+static const struct file_operations squashfs_dir_ops = { -+ .read = generic_read_dir, -+ .readdir = squashfs_readdir -+}; -+ -+SQSH_EXTERN struct inode_operations squashfs_dir_inode_ops = { -+ .lookup = squashfs_lookup -+}; -+ -+ -+static struct buffer_head *get_block_length(struct super_block *s, -+ int *cur_index, int *offset, int *c_byte) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ unsigned short temp; -+ struct buffer_head *bh; -+ -+ if (!(bh = sb_bread(s, *cur_index))) -+ goto out; -+ -+ if (msblk->devblksize - *offset == 1) { -+ if (msblk->swap) -+ ((unsigned char *) &temp)[1] = *((unsigned char *) -+ (bh->b_data + *offset)); -+ else -+ ((unsigned char *) &temp)[0] = *((unsigned char *) -+ (bh->b_data + *offset)); -+ brelse(bh); -+ if (!(bh = sb_bread(s, ++(*cur_index)))) -+ goto out; -+ if (msblk->swap) -+ ((unsigned char *) &temp)[0] = *((unsigned char *) -+ bh->b_data); -+ else -+ ((unsigned char *) &temp)[1] = *((unsigned char *) -+ bh->b_data); -+ *c_byte = temp; -+ *offset = 1; -+ } else { -+ if (msblk->swap) { -+ ((unsigned char *) &temp)[1] = *((unsigned char *) -+ (bh->b_data + *offset)); -+ ((unsigned char *) &temp)[0] = *((unsigned char *) -+ (bh->b_data + *offset + 1)); -+ } else { -+ ((unsigned char *) &temp)[0] = *((unsigned char *) -+ (bh->b_data + *offset)); -+ ((unsigned char *) &temp)[1] = *((unsigned char *) -+ (bh->b_data + *offset + 1)); -+ } -+ *c_byte = temp; -+ *offset += 2; -+ } -+ -+ if (SQUASHFS_CHECK_DATA(msblk->sblk.flags)) { -+ if (*offset == msblk->devblksize) { -+ brelse(bh); -+ if (!(bh = sb_bread(s, ++(*cur_index)))) -+ goto out; -+ *offset = 0; -+ } -+ if (*((unsigned char *) (bh->b_data + *offset)) != -+ SQUASHFS_MARKER_BYTE) { -+ ERROR("Metadata block marker corrupt @ %x\n", -+ *cur_index); -+ brelse(bh); -+ goto out; -+ } -+ (*offset)++; -+ } -+ return bh; -+ -+out: -+ return NULL; -+} -+ -+ -+SQSH_EXTERN unsigned int squashfs_read_data(struct super_block *s, char *buffer, -+ long long index, unsigned int length, -+ long long *next_index, int srclength) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ struct buffer_head *bh[((SQUASHFS_FILE_MAX_SIZE - 1) >> -+ msblk->devblksize_log2) + 2]; -+ unsigned int offset = index & ((1 << msblk->devblksize_log2) - 1); -+ unsigned int cur_index = index >> msblk->devblksize_log2; -+ int bytes, avail_bytes, b = 0, k = 0; -+ unsigned int compressed; -+ unsigned int c_byte = length; -+ -+ if (c_byte) { -+ bytes = msblk->devblksize - offset; -+ compressed = SQUASHFS_COMPRESSED_BLOCK(c_byte); -+ c_byte = SQUASHFS_COMPRESSED_SIZE_BLOCK(c_byte); -+ -+ TRACE("Block @ 0x%llx, %scompressed size %d, src size %d\n", index, compressed -+ ? "" : "un", (unsigned int) c_byte, srclength); -+ -+ if (c_byte > srclength || index < 0 || (index + c_byte) > sblk->bytes_used) -+ goto read_failure; -+ -+ if (!(bh[0] = sb_getblk(s, cur_index))) -+ goto block_release; -+ -+ for (b = 1; bytes < c_byte; b++) { -+ if (!(bh[b] = sb_getblk(s, ++cur_index))) -+ goto block_release; -+ bytes += msblk->devblksize; -+ } -+ ll_rw_block(READ, b, bh); -+ } else { -+ if (index < 0 || (index + 2) > sblk->bytes_used) -+ goto read_failure; -+ -+ if (!(bh[0] = get_block_length(s, &cur_index, &offset, -+ &c_byte))) -+ goto read_failure; -+ -+ bytes = msblk->devblksize - offset; -+ compressed = SQUASHFS_COMPRESSED(c_byte); -+ c_byte = SQUASHFS_COMPRESSED_SIZE(c_byte); -+ -+ TRACE("Block @ 0x%llx, %scompressed size %d\n", index, compressed -+ ? "" : "un", (unsigned int) c_byte); -+ -+ if (c_byte > srclength || (index + c_byte) > sblk->bytes_used) -+ goto read_failure; -+ -+ for (b = 1; bytes < c_byte; b++) { -+ if (!(bh[b] = sb_getblk(s, ++cur_index))) -+ goto block_release; -+ bytes += msblk->devblksize; -+ } -+ ll_rw_block(READ, b - 1, bh + 1); -+ } -+ -+ if (compressed) { -+ int zlib_err = 0; -+ -+ /* -+ * uncompress block -+ */ -+ -+ mutex_lock(&msblk->read_data_mutex); -+ -+ msblk->stream.next_out = buffer; -+ msblk->stream.avail_out = srclength; -+ -+ for (bytes = 0; k < b; k++) { -+ avail_bytes = (c_byte - bytes) > (msblk->devblksize - offset) ? -+ msblk->devblksize - offset : -+ c_byte - bytes; -+ wait_on_buffer(bh[k]); -+ if (!buffer_uptodate(bh[k])) -+ goto release_mutex; -+ -+ msblk->stream.next_in = bh[k]->b_data + offset; -+ msblk->stream.avail_in = avail_bytes; -+ -+ if (k == 0) { -+ zlib_err = zlib_inflateInit(&msblk->stream); -+ if (zlib_err != Z_OK) { -+ ERROR("zlib_inflateInit returned unexpected result 0x%x, srclength %d\n", -+ zlib_err, srclength); -+ goto release_mutex; -+ } -+ -+ if (avail_bytes == 0) { -+ offset = 0; -+ brelse(bh[k]); -+ continue; -+ } -+ } -+ -+ zlib_err = zlib_inflate(&msblk->stream, Z_NO_FLUSH); -+ if (zlib_err != Z_OK && zlib_err != Z_STREAM_END) { -+ ERROR("zlib_inflate returned unexpected result 0x%x, srclength %d, avail_in %d, avail_out %d\n", -+ zlib_err, srclength, msblk->stream.avail_in, msblk->stream.avail_out); -+ goto release_mutex; -+ } -+ -+ bytes += avail_bytes; -+ offset = 0; -+ brelse(bh[k]); -+ } -+ -+ if (zlib_err != Z_STREAM_END) -+ goto release_mutex; -+ -+ zlib_err = zlib_inflateEnd(&msblk->stream); -+ if (zlib_err != Z_OK) { -+ ERROR("zlib_inflateEnd returned unexpected result 0x%x, srclength %d\n", -+ zlib_err, srclength); -+ goto release_mutex; -+ } -+ bytes = msblk->stream.total_out; -+ mutex_unlock(&msblk->read_data_mutex); -+ } else { -+ int i; -+ -+ for(i = 0; i < b; i++) { -+ wait_on_buffer(bh[i]); -+ if(!buffer_uptodate(bh[i])) -+ goto block_release; -+ } -+ -+ for (bytes = 0; k < b; k++) { -+ avail_bytes = (c_byte - bytes) > (msblk->devblksize - offset) ? -+ msblk->devblksize - offset : -+ c_byte - bytes; -+ memcpy(buffer + bytes, bh[k]->b_data + offset, avail_bytes); -+ bytes += avail_bytes; -+ offset = 0; -+ brelse(bh[k]); -+ } -+ } -+ -+ if (next_index) -+ *next_index = index + c_byte + (length ? 0 : -+ (SQUASHFS_CHECK_DATA(msblk->sblk.flags) -+ ? 3 : 2)); -+ return bytes; -+ -+release_mutex: -+ mutex_unlock(&msblk->read_data_mutex); -+ -+block_release: -+ for (; k < b; k++) -+ brelse(bh[k]); -+ -+read_failure: -+ ERROR("sb_bread failed reading block 0x%x\n", cur_index); -+ return 0; -+} -+ -+ -+SQSH_EXTERN int squashfs_get_cached_block(struct super_block *s, char *buffer, -+ long long block, unsigned int offset, -+ int length, long long *next_block, -+ unsigned int *next_offset) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ int n, i, bytes, return_length = length; -+ long long next_index; -+ -+ TRACE("Entered squashfs_get_cached_block [%llx:%x]\n", block, offset); -+ -+ while ( 1 ) { -+ for (i = 0; i < SQUASHFS_CACHED_BLKS; i++) -+ if (msblk->block_cache[i].block == block) -+ break; -+ -+ mutex_lock(&msblk->block_cache_mutex); -+ -+ if (i == SQUASHFS_CACHED_BLKS) { -+ /* read inode header block */ -+ for (i = msblk->next_cache, n = SQUASHFS_CACHED_BLKS; -+ n ; n --, i = (i + 1) % -+ SQUASHFS_CACHED_BLKS) -+ if (msblk->block_cache[i].block != -+ SQUASHFS_USED_BLK) -+ break; -+ -+ if (n == 0) { -+ wait_queue_t wait; -+ -+ init_waitqueue_entry(&wait, current); -+ add_wait_queue(&msblk->waitq, &wait); -+ set_current_state(TASK_UNINTERRUPTIBLE); -+ mutex_unlock(&msblk->block_cache_mutex); -+ schedule(); -+ set_current_state(TASK_RUNNING); -+ remove_wait_queue(&msblk->waitq, &wait); -+ continue; -+ } -+ msblk->next_cache = (i + 1) % SQUASHFS_CACHED_BLKS; -+ -+ if (msblk->block_cache[i].block == -+ SQUASHFS_INVALID_BLK) { -+ if (!(msblk->block_cache[i].data = -+ kmalloc(SQUASHFS_METADATA_SIZE, -+ GFP_KERNEL))) { -+ ERROR("Failed to allocate cache" -+ "block\n"); -+ mutex_unlock(&msblk->block_cache_mutex); -+ goto out; -+ } -+ } -+ -+ msblk->block_cache[i].block = SQUASHFS_USED_BLK; -+ mutex_unlock(&msblk->block_cache_mutex); -+ -+ msblk->block_cache[i].length = squashfs_read_data(s, -+ msblk->block_cache[i].data, block, 0, &next_index, SQUASHFS_METADATA_SIZE); -+ if (msblk->block_cache[i].length == 0) { -+ ERROR("Unable to read cache block [%llx:%x]\n", -+ block, offset); -+ mutex_lock(&msblk->block_cache_mutex); -+ msblk->block_cache[i].block = SQUASHFS_INVALID_BLK; -+ kfree(msblk->block_cache[i].data); -+ wake_up(&msblk->waitq); -+ mutex_unlock(&msblk->block_cache_mutex); -+ goto out; -+ } -+ -+ mutex_lock(&msblk->block_cache_mutex); -+ wake_up(&msblk->waitq); -+ msblk->block_cache[i].block = block; -+ msblk->block_cache[i].next_index = next_index; -+ TRACE("Read cache block [%llx:%x]\n", block, offset); -+ } -+ -+ if (msblk->block_cache[i].block != block) { -+ mutex_unlock(&msblk->block_cache_mutex); -+ continue; -+ } -+ -+ bytes = msblk->block_cache[i].length - offset; -+ -+ if (bytes < 1) { -+ mutex_unlock(&msblk->block_cache_mutex); -+ goto out; -+ } else if (bytes >= length) { -+ if (buffer) -+ memcpy(buffer, msblk->block_cache[i].data + -+ offset, length); -+ if (msblk->block_cache[i].length - offset == length) { -+ *next_block = msblk->block_cache[i].next_index; -+ *next_offset = 0; -+ } else { -+ *next_block = block; -+ *next_offset = offset + length; -+ } -+ mutex_unlock(&msblk->block_cache_mutex); -+ goto finish; -+ } else { -+ if (buffer) { -+ memcpy(buffer, msblk->block_cache[i].data + -+ offset, bytes); -+ buffer += bytes; -+ } -+ block = msblk->block_cache[i].next_index; -+ mutex_unlock(&msblk->block_cache_mutex); -+ length -= bytes; -+ offset = 0; -+ } -+ } -+ -+finish: -+ return return_length; -+out: -+ return 0; -+} -+ -+ -+static int get_fragment_location(struct super_block *s, unsigned int fragment, -+ long long *fragment_start_block, -+ unsigned int *fragment_size) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ long long start_block = -+ msblk->fragment_index[SQUASHFS_FRAGMENT_INDEX(fragment)]; -+ int offset = SQUASHFS_FRAGMENT_INDEX_OFFSET(fragment); -+ struct squashfs_fragment_entry fragment_entry; -+ -+ if (msblk->swap) { -+ struct squashfs_fragment_entry sfragment_entry; -+ -+ if (!squashfs_get_cached_block(s, (char *) &sfragment_entry, -+ start_block, offset, -+ sizeof(sfragment_entry), &start_block, -+ &offset)) -+ goto out; -+ SQUASHFS_SWAP_FRAGMENT_ENTRY(&fragment_entry, &sfragment_entry); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) &fragment_entry, -+ start_block, offset, -+ sizeof(fragment_entry), &start_block, -+ &offset)) -+ goto out; -+ -+ *fragment_start_block = fragment_entry.start_block; -+ *fragment_size = fragment_entry.size; -+ -+ return 1; -+ -+out: -+ return 0; -+} -+ -+ -+SQSH_EXTERN void release_cached_fragment(struct squashfs_sb_info *msblk, struct -+ squashfs_fragment_cache *fragment) -+{ -+ mutex_lock(&msblk->fragment_mutex); -+ fragment->locked --; -+ wake_up(&msblk->fragment_wait_queue); -+ mutex_unlock(&msblk->fragment_mutex); -+} -+ -+ -+SQSH_EXTERN struct squashfs_fragment_cache *get_cached_fragment(struct super_block -+ *s, long long start_block, -+ int length) -+{ -+ int i, n; -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ -+ while ( 1 ) { -+ mutex_lock(&msblk->fragment_mutex); -+ -+ for (i = 0; i < SQUASHFS_CACHED_FRAGMENTS && -+ msblk->fragment[i].block != start_block; i++); -+ -+ if (i == SQUASHFS_CACHED_FRAGMENTS) { -+ for (i = msblk->next_fragment, n = -+ SQUASHFS_CACHED_FRAGMENTS; n && -+ msblk->fragment[i].locked; n--, i = (i + 1) % -+ SQUASHFS_CACHED_FRAGMENTS); -+ -+ if (n == 0) { -+ wait_queue_t wait; -+ -+ init_waitqueue_entry(&wait, current); -+ add_wait_queue(&msblk->fragment_wait_queue, -+ &wait); -+ set_current_state(TASK_UNINTERRUPTIBLE); -+ mutex_unlock(&msblk->fragment_mutex); -+ schedule(); -+ set_current_state(TASK_RUNNING); -+ remove_wait_queue(&msblk->fragment_wait_queue, -+ &wait); -+ continue; -+ } -+ msblk->next_fragment = (msblk->next_fragment + 1) % -+ SQUASHFS_CACHED_FRAGMENTS; -+ -+ if (msblk->fragment[i].data == NULL) -+ if (!(msblk->fragment[i].data = SQUASHFS_ALLOC -+ (SQUASHFS_FILE_MAX_SIZE))) { -+ ERROR("Failed to allocate fragment " -+ "cache block\n"); -+ mutex_unlock(&msblk->fragment_mutex); -+ goto out; -+ } -+ -+ msblk->fragment[i].block = SQUASHFS_INVALID_BLK; -+ msblk->fragment[i].locked = 1; -+ mutex_unlock(&msblk->fragment_mutex); -+ -+ if (!(msblk->fragment[i].length = squashfs_read_data(s, -+ msblk->fragment[i].data, -+ start_block, length, NULL, sblk->block_size))) { -+ ERROR("Unable to read fragment cache block " -+ "[%llx]\n", start_block); -+ msblk->fragment[i].locked = 0; -+ smp_mb(); -+ goto out; -+ } -+ -+ mutex_lock(&msblk->fragment_mutex); -+ msblk->fragment[i].block = start_block; -+ TRACE("New fragment %d, start block %lld, locked %d\n", -+ i, msblk->fragment[i].block, -+ msblk->fragment[i].locked); -+ mutex_unlock(&msblk->fragment_mutex); -+ break; -+ } -+ -+ msblk->fragment[i].locked++; -+ mutex_unlock(&msblk->fragment_mutex); -+ TRACE("Got fragment %d, start block %lld, locked %d\n", i, -+ msblk->fragment[i].block, -+ msblk->fragment[i].locked); -+ break; -+ } -+ -+ return &msblk->fragment[i]; -+ -+out: -+ return NULL; -+} -+ -+ -+static void squashfs_new_inode(struct squashfs_sb_info *msblk, struct inode *i, -+ struct squashfs_base_inode_header *inodeb) -+{ -+ i->i_ino = inodeb->inode_number; -+ i->i_mtime.tv_sec = inodeb->mtime; -+ i->i_atime.tv_sec = inodeb->mtime; -+ i->i_ctime.tv_sec = inodeb->mtime; -+ i->i_uid = msblk->uid[inodeb->uid]; -+ i->i_mode = inodeb->mode; -+ i->i_size = 0; -+ if (inodeb->guid == SQUASHFS_GUIDS) -+ i->i_gid = i->i_uid; -+ else -+ i->i_gid = msblk->guid[inodeb->guid]; -+} -+ -+ -+static squashfs_inode_t squashfs_inode_lookup(struct super_block *s, int ino) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ long long start = msblk->inode_lookup_table[SQUASHFS_LOOKUP_BLOCK(ino - 1)]; -+ int offset = SQUASHFS_LOOKUP_BLOCK_OFFSET(ino - 1); -+ squashfs_inode_t inode; -+ -+ TRACE("Entered squashfs_inode_lookup, inode_number = %d\n", ino); -+ -+ if (msblk->swap) { -+ squashfs_inode_t sinode; -+ -+ if (!squashfs_get_cached_block(s, (char *) &sinode, start, offset, -+ sizeof(sinode), &start, &offset)) -+ goto out; -+ SQUASHFS_SWAP_INODE_T((&inode), &sinode); -+ } else if (!squashfs_get_cached_block(s, (char *) &inode, start, offset, -+ sizeof(inode), &start, &offset)) -+ goto out; -+ -+ TRACE("squashfs_inode_lookup, inode = 0x%llx\n", inode); -+ -+ return inode; -+ -+out: -+ return SQUASHFS_INVALID_BLK; -+} -+ -+ -+static void vfs_read_inode(struct inode *i) -+{ -+ struct squashfs_sb_info *msblk = i->i_sb->s_fs_info; -+ squashfs_inode_t inode = squashfs_inode_lookup(i->i_sb, i->i_ino); -+ -+ TRACE("Entered vfs_read_inode\n"); -+ -+ if(inode != SQUASHFS_INVALID_BLK) -+ (msblk->read_inode)(i, inode); -+} -+ -+ -+static struct dentry *squashfs_get_parent(struct dentry *child) -+{ -+ struct inode *i = child->d_inode; -+ struct inode *parent = iget(i->i_sb, SQUASHFS_I(i)->u.s2.parent_inode); -+ struct dentry *rv; -+ -+ TRACE("Entered squashfs_get_parent\n"); -+ -+ if(parent == NULL) { -+ rv = ERR_PTR(-EACCES); -+ goto out; -+ } -+ -+ rv = d_alloc_anon(parent); -+ if(rv == NULL) -+ rv = ERR_PTR(-ENOMEM); -+ -+out: -+ return rv; -+} -+ -+ -+SQSH_EXTERN struct inode *squashfs_iget(struct super_block *s, squashfs_inode_t inode, unsigned int inode_number) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct inode *i = iget_locked(s, inode_number); -+ -+ TRACE("Entered squashfs_iget\n"); -+ -+ if(i && (i->i_state & I_NEW)) { -+ (msblk->read_inode)(i, inode); -+ unlock_new_inode(i); -+ } -+ -+ return i; -+} -+ -+ -+static int squashfs_read_inode(struct inode *i, squashfs_inode_t inode) -+{ -+ struct super_block *s = i->i_sb; -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ long long block = SQUASHFS_INODE_BLK(inode) + -+ sblk->inode_table_start; -+ unsigned int offset = SQUASHFS_INODE_OFFSET(inode); -+ long long next_block; -+ unsigned int next_offset; -+ union squashfs_inode_header id, sid; -+ struct squashfs_base_inode_header *inodeb = &id.base, -+ *sinodeb = &sid.base; -+ -+ TRACE("Entered squashfs_read_inode\n"); -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) sinodeb, block, -+ offset, sizeof(*sinodeb), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_BASE_INODE_HEADER(inodeb, sinodeb, -+ sizeof(*sinodeb)); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) inodeb, block, -+ offset, sizeof(*inodeb), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ squashfs_new_inode(msblk, i, inodeb); -+ -+ switch(inodeb->inode_type) { -+ case SQUASHFS_FILE_TYPE: { -+ unsigned int frag_size; -+ long long frag_blk; -+ struct squashfs_reg_inode_header *inodep = &id.reg; -+ struct squashfs_reg_inode_header *sinodep = &sid.reg; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_REG_INODE_HEADER(inodep, sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ frag_blk = SQUASHFS_INVALID_BLK; -+ if (inodep->fragment != SQUASHFS_INVALID_FRAG && -+ !get_fragment_location(s, -+ inodep->fragment, &frag_blk, &frag_size)) -+ goto failed_read; -+ -+ i->i_nlink = 1; -+ i->i_size = inodep->file_size; -+ i->i_fop = &generic_ro_fops; -+ i->i_mode |= S_IFREG; -+ i->i_blocks = ((i->i_size - 1) >> 9) + 1; -+ SQUASHFS_I(i)->u.s1.fragment_start_block = frag_blk; -+ SQUASHFS_I(i)->u.s1.fragment_size = frag_size; -+ SQUASHFS_I(i)->u.s1.fragment_offset = inodep->offset; -+ SQUASHFS_I(i)->start_block = inodep->start_block; -+ SQUASHFS_I(i)->u.s1.block_list_start = next_block; -+ SQUASHFS_I(i)->offset = next_offset; -+ if (sblk->block_size > 4096) -+ i->i_data.a_ops = &squashfs_aops; -+ else -+ i->i_data.a_ops = &squashfs_aops_4K; -+ -+ TRACE("File inode %x:%x, start_block %llx, " -+ "block_list_start %llx, offset %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ inodep->start_block, next_block, -+ next_offset); -+ break; -+ } -+ case SQUASHFS_LREG_TYPE: { -+ unsigned int frag_size; -+ long long frag_blk; -+ struct squashfs_lreg_inode_header *inodep = &id.lreg; -+ struct squashfs_lreg_inode_header *sinodep = &sid.lreg; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_LREG_INODE_HEADER(inodep, sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ frag_blk = SQUASHFS_INVALID_BLK; -+ if (inodep->fragment != SQUASHFS_INVALID_FRAG && -+ !get_fragment_location(s, -+ inodep->fragment, &frag_blk, &frag_size)) -+ goto failed_read; -+ -+ i->i_nlink = inodep->nlink; -+ i->i_size = inodep->file_size; -+ i->i_fop = &generic_ro_fops; -+ i->i_mode |= S_IFREG; -+ i->i_blocks = ((i->i_size - 1) >> 9) + 1; -+ SQUASHFS_I(i)->u.s1.fragment_start_block = frag_blk; -+ SQUASHFS_I(i)->u.s1.fragment_size = frag_size; -+ SQUASHFS_I(i)->u.s1.fragment_offset = inodep->offset; -+ SQUASHFS_I(i)->start_block = inodep->start_block; -+ SQUASHFS_I(i)->u.s1.block_list_start = next_block; -+ SQUASHFS_I(i)->offset = next_offset; -+ if (sblk->block_size > 4096) -+ i->i_data.a_ops = &squashfs_aops; -+ else -+ i->i_data.a_ops = &squashfs_aops_4K; -+ -+ TRACE("File inode %x:%x, start_block %llx, " -+ "block_list_start %llx, offset %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ inodep->start_block, next_block, -+ next_offset); -+ break; -+ } -+ case SQUASHFS_DIR_TYPE: { -+ struct squashfs_dir_inode_header *inodep = &id.dir; -+ struct squashfs_dir_inode_header *sinodep = &sid.dir; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_DIR_INODE_HEADER(inodep, sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ i->i_nlink = inodep->nlink; -+ i->i_size = inodep->file_size; -+ i->i_op = &squashfs_dir_inode_ops; -+ i->i_fop = &squashfs_dir_ops; -+ i->i_mode |= S_IFDIR; -+ SQUASHFS_I(i)->start_block = inodep->start_block; -+ SQUASHFS_I(i)->offset = inodep->offset; -+ SQUASHFS_I(i)->u.s2.directory_index_count = 0; -+ SQUASHFS_I(i)->u.s2.parent_inode = inodep->parent_inode; -+ -+ TRACE("Directory inode %x:%x, start_block %x, offset " -+ "%x\n", SQUASHFS_INODE_BLK(inode), -+ offset, inodep->start_block, -+ inodep->offset); -+ break; -+ } -+ case SQUASHFS_LDIR_TYPE: { -+ struct squashfs_ldir_inode_header *inodep = &id.ldir; -+ struct squashfs_ldir_inode_header *sinodep = &sid.ldir; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_LDIR_INODE_HEADER(inodep, -+ sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ i->i_nlink = inodep->nlink; -+ i->i_size = inodep->file_size; -+ i->i_op = &squashfs_dir_inode_ops; -+ i->i_fop = &squashfs_dir_ops; -+ i->i_mode |= S_IFDIR; -+ SQUASHFS_I(i)->start_block = inodep->start_block; -+ SQUASHFS_I(i)->offset = inodep->offset; -+ SQUASHFS_I(i)->u.s2.directory_index_start = next_block; -+ SQUASHFS_I(i)->u.s2.directory_index_offset = -+ next_offset; -+ SQUASHFS_I(i)->u.s2.directory_index_count = -+ inodep->i_count; -+ SQUASHFS_I(i)->u.s2.parent_inode = inodep->parent_inode; -+ -+ TRACE("Long directory inode %x:%x, start_block %x, " -+ "offset %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ inodep->start_block, inodep->offset); -+ break; -+ } -+ case SQUASHFS_SYMLINK_TYPE: { -+ struct squashfs_symlink_inode_header *inodep = -+ &id.symlink; -+ struct squashfs_symlink_inode_header *sinodep = -+ &sid.symlink; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_SYMLINK_INODE_HEADER(inodep, -+ sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ i->i_nlink = inodep->nlink; -+ i->i_size = inodep->symlink_size; -+ i->i_op = &page_symlink_inode_operations; -+ i->i_data.a_ops = &squashfs_symlink_aops; -+ i->i_mode |= S_IFLNK; -+ SQUASHFS_I(i)->start_block = next_block; -+ SQUASHFS_I(i)->offset = next_offset; -+ -+ TRACE("Symbolic link inode %x:%x, start_block %llx, " -+ "offset %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ next_block, next_offset); -+ break; -+ } -+ case SQUASHFS_BLKDEV_TYPE: -+ case SQUASHFS_CHRDEV_TYPE: { -+ struct squashfs_dev_inode_header *inodep = &id.dev; -+ struct squashfs_dev_inode_header *sinodep = &sid.dev; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_DEV_INODE_HEADER(inodep, sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ i->i_nlink = inodep->nlink; -+ i->i_mode |= (inodeb->inode_type == -+ SQUASHFS_CHRDEV_TYPE) ? S_IFCHR : -+ S_IFBLK; -+ init_special_inode(i, i->i_mode, -+ old_decode_dev(inodep->rdev)); -+ -+ TRACE("Device inode %x:%x, rdev %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ inodep->rdev); -+ break; -+ } -+ case SQUASHFS_FIFO_TYPE: -+ case SQUASHFS_SOCKET_TYPE: { -+ struct squashfs_ipc_inode_header *inodep = &id.ipc; -+ struct squashfs_ipc_inode_header *sinodep = &sid.ipc; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_IPC_INODE_HEADER(inodep, sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ i->i_nlink = inodep->nlink; -+ i->i_mode |= (inodeb->inode_type == SQUASHFS_FIFO_TYPE) -+ ? S_IFIFO : S_IFSOCK; -+ init_special_inode(i, i->i_mode, 0); -+ break; -+ } -+ default: -+ ERROR("Unknown inode type %d in squashfs_iget!\n", -+ inodeb->inode_type); -+ goto failed_read1; -+ } -+ -+ return 1; -+ -+failed_read: -+ ERROR("Unable to read inode [%llx:%x]\n", block, offset); -+ -+failed_read1: -+ make_bad_inode(i); -+ return 0; -+} -+ -+ -+static int read_inode_lookup_table(struct super_block *s) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ unsigned int length = SQUASHFS_LOOKUP_BLOCK_BYTES(sblk->inodes); -+ -+ TRACE("In read_inode_lookup_table, length %d\n", length); -+ -+ /* Allocate inode lookup table */ -+ if (!(msblk->inode_lookup_table = kmalloc(length, GFP_KERNEL))) { -+ ERROR("Failed to allocate inode lookup table\n"); -+ return 0; -+ } -+ -+ if (!squashfs_read_data(s, (char *) msblk->inode_lookup_table, -+ sblk->lookup_table_start, length | -+ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, length)) { -+ ERROR("unable to read inode lookup table\n"); -+ return 0; -+ } -+ -+ if (msblk->swap) { -+ int i; -+ long long block; -+ -+ for (i = 0; i < SQUASHFS_LOOKUP_BLOCKS(sblk->inodes); i++) { -+ SQUASHFS_SWAP_LOOKUP_BLOCKS((&block), -+ &msblk->inode_lookup_table[i], 1); -+ msblk->inode_lookup_table[i] = block; -+ } -+ } -+ -+ return 1; -+} -+ -+ -+static int read_fragment_index_table(struct super_block *s) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ unsigned int length = SQUASHFS_FRAGMENT_INDEX_BYTES(sblk->fragments); -+ -+ if(length == 0) -+ return 1; -+ -+ /* Allocate fragment index table */ -+ if (!(msblk->fragment_index = kmalloc(length, GFP_KERNEL))) { -+ ERROR("Failed to allocate fragment index table\n"); -+ return 0; -+ } -+ -+ if (!squashfs_read_data(s, (char *) msblk->fragment_index, -+ sblk->fragment_table_start, length | -+ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, length)) { -+ ERROR("unable to read fragment index table\n"); -+ return 0; -+ } -+ -+ if (msblk->swap) { -+ int i; -+ long long fragment; -+ -+ for (i = 0; i < SQUASHFS_FRAGMENT_INDEXES(sblk->fragments); i++) { -+ SQUASHFS_SWAP_FRAGMENT_INDEXES((&fragment), -+ &msblk->fragment_index[i], 1); -+ msblk->fragment_index[i] = fragment; -+ } -+ } -+ -+ return 1; -+} -+ -+ -+static int supported_squashfs_filesystem(struct squashfs_sb_info *msblk, int silent) -+{ -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ -+ msblk->read_inode = squashfs_read_inode; -+ msblk->read_blocklist = read_blocklist; -+ msblk->read_fragment_index_table = read_fragment_index_table; -+ -+ if (sblk->s_major == 1) { -+ if (!squashfs_1_0_supported(msblk)) { -+ SERROR("Major/Minor mismatch, Squashfs 1.0 filesystems " -+ "are unsupported\n"); -+ SERROR("Please recompile with " -+ "Squashfs 1.0 support enabled\n"); -+ return 0; -+ } -+ } else if (sblk->s_major == 2) { -+ if (!squashfs_2_0_supported(msblk)) { -+ SERROR("Major/Minor mismatch, Squashfs 2.0 filesystems " -+ "are unsupported\n"); -+ SERROR("Please recompile with " -+ "Squashfs 2.0 support enabled\n"); -+ return 0; -+ } -+ } else if(sblk->s_major != SQUASHFS_MAJOR || sblk->s_minor > -+ SQUASHFS_MINOR) { -+ SERROR("Major/Minor mismatch, trying to mount newer %d.%d " -+ "filesystem\n", sblk->s_major, sblk->s_minor); -+ SERROR("Please update your kernel\n"); -+ return 0; -+ } -+ -+ return 1; -+} -+ -+ -+static int squashfs_fill_super(struct super_block *s, void *data, int silent) -+{ -+ struct squashfs_sb_info *msblk; -+ struct squashfs_super_block *sblk; -+ int i; -+ char b[BDEVNAME_SIZE]; -+ struct inode *root; -+ -+ TRACE("Entered squashfs_read_superblock\n"); -+ -+ if (!(s->s_fs_info = kmalloc(sizeof(struct squashfs_sb_info), -+ GFP_KERNEL))) { -+ ERROR("Failed to allocate superblock\n"); -+ goto failure; -+ } -+ memset(s->s_fs_info, 0, sizeof(struct squashfs_sb_info)); -+ msblk = s->s_fs_info; -+ if (!(msblk->stream.workspace = vmalloc(zlib_inflate_workspacesize()))) { -+ ERROR("Failed to allocate zlib workspace\n"); -+ goto failure; -+ } -+ sblk = &msblk->sblk; -+ -+ msblk->devblksize = sb_min_blocksize(s, BLOCK_SIZE); -+ msblk->devblksize_log2 = ffz(~msblk->devblksize); -+ -+ mutex_init(&msblk->read_data_mutex); -+ mutex_init(&msblk->read_page_mutex); -+ mutex_init(&msblk->block_cache_mutex); -+ mutex_init(&msblk->fragment_mutex); -+ mutex_init(&msblk->meta_index_mutex); -+ -+ init_waitqueue_head(&msblk->waitq); -+ init_waitqueue_head(&msblk->fragment_wait_queue); -+ -+ sblk->bytes_used = sizeof(struct squashfs_super_block); -+ if (!squashfs_read_data(s, (char *) sblk, SQUASHFS_START, -+ sizeof(struct squashfs_super_block) | -+ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, sizeof(struct squashfs_super_block))) { -+ SERROR("unable to read superblock\n"); -+ goto failed_mount; -+ } -+ -+ /* Check it is a SQUASHFS superblock */ -+ msblk->swap = 0; -+ if ((s->s_magic = sblk->s_magic) != SQUASHFS_MAGIC) { -+ if (sblk->s_magic == SQUASHFS_MAGIC_SWAP) { -+ struct squashfs_super_block ssblk; -+ -+ WARNING("Mounting a different endian SQUASHFS " -+ "filesystem on %s\n", bdevname(s->s_bdev, b)); -+ -+ SQUASHFS_SWAP_SUPER_BLOCK(&ssblk, sblk); -+ memcpy(sblk, &ssblk, sizeof(struct squashfs_super_block)); -+ msblk->swap = 1; -+ } else { -+ SERROR("Can't find a SQUASHFS superblock on %s\n", -+ bdevname(s->s_bdev, b)); -+ goto failed_mount; -+ } -+ } -+ -+ /* Check the MAJOR & MINOR versions */ -+ if(!supported_squashfs_filesystem(msblk, silent)) -+ goto failed_mount; -+ -+ /* Check the filesystem does not extend beyond the end of the -+ block device */ -+ if(sblk->bytes_used < 0 || sblk->bytes_used > i_size_read(s->s_bdev->bd_inode)) -+ goto failed_mount; -+ -+ /* Check the root inode for sanity */ -+ if (SQUASHFS_INODE_OFFSET(sblk->root_inode) > SQUASHFS_METADATA_SIZE) -+ goto failed_mount; -+ -+ TRACE("Found valid superblock on %s\n", bdevname(s->s_bdev, b)); -+ TRACE("Inodes are %scompressed\n", -+ SQUASHFS_UNCOMPRESSED_INODES -+ (sblk->flags) ? "un" : ""); -+ TRACE("Data is %scompressed\n", -+ SQUASHFS_UNCOMPRESSED_DATA(sblk->flags) -+ ? "un" : ""); -+ TRACE("Check data is %s present in the filesystem\n", -+ SQUASHFS_CHECK_DATA(sblk->flags) ? -+ "" : "not"); -+ TRACE("Filesystem size %lld bytes\n", sblk->bytes_used); -+ TRACE("Block size %d\n", sblk->block_size); -+ TRACE("Number of inodes %d\n", sblk->inodes); -+ if (sblk->s_major > 1) -+ TRACE("Number of fragments %d\n", sblk->fragments); -+ TRACE("Number of uids %d\n", sblk->no_uids); -+ TRACE("Number of gids %d\n", sblk->no_guids); -+ TRACE("sblk->inode_table_start %llx\n", sblk->inode_table_start); -+ TRACE("sblk->directory_table_start %llx\n", sblk->directory_table_start); -+ if (sblk->s_major > 1) -+ TRACE("sblk->fragment_table_start %llx\n", -+ sblk->fragment_table_start); -+ TRACE("sblk->uid_start %llx\n", sblk->uid_start); -+ -+ s->s_flags |= MS_RDONLY; -+ s->s_op = &squashfs_super_ops; -+ -+ /* Init inode_table block pointer array */ -+ if (!(msblk->block_cache = kmalloc(sizeof(struct squashfs_cache) * -+ SQUASHFS_CACHED_BLKS, GFP_KERNEL))) { -+ ERROR("Failed to allocate block cache\n"); -+ goto failed_mount; -+ } -+ -+ for (i = 0; i < SQUASHFS_CACHED_BLKS; i++) -+ msblk->block_cache[i].block = SQUASHFS_INVALID_BLK; -+ -+ msblk->next_cache = 0; -+ -+ /* Allocate read_page block */ -+ if (!(msblk->read_page = kmalloc(sblk->block_size, GFP_KERNEL))) { -+ ERROR("Failed to allocate read_page block\n"); -+ goto failed_mount; -+ } -+ -+ /* Allocate uid and gid tables */ -+ if (!(msblk->uid = kmalloc((sblk->no_uids + sblk->no_guids) * -+ sizeof(unsigned int), GFP_KERNEL))) { -+ ERROR("Failed to allocate uid/gid table\n"); -+ goto failed_mount; -+ } -+ msblk->guid = msblk->uid + sblk->no_uids; -+ -+ if (msblk->swap) { -+ unsigned int suid[sblk->no_uids + sblk->no_guids]; -+ -+ if (!squashfs_read_data(s, (char *) &suid, sblk->uid_start, -+ ((sblk->no_uids + sblk->no_guids) * -+ sizeof(unsigned int)) | -+ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, (sblk->no_uids + sblk->no_guids) * sizeof(unsigned int))) { -+ ERROR("unable to read uid/gid table\n"); -+ goto failed_mount; -+ } -+ -+ SQUASHFS_SWAP_DATA(msblk->uid, suid, (sblk->no_uids + -+ sblk->no_guids), (sizeof(unsigned int) * 8)); -+ } else -+ if (!squashfs_read_data(s, (char *) msblk->uid, sblk->uid_start, -+ ((sblk->no_uids + sblk->no_guids) * -+ sizeof(unsigned int)) | -+ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, (sblk->no_uids + sblk->no_guids) * sizeof(unsigned int))) { -+ ERROR("unable to read uid/gid table\n"); -+ goto failed_mount; -+ } -+ -+ -+ if (sblk->s_major == 1 && squashfs_1_0_supported(msblk)) -+ goto allocate_root; -+ -+ if (!(msblk->fragment = kmalloc(sizeof(struct squashfs_fragment_cache) * -+ SQUASHFS_CACHED_FRAGMENTS, GFP_KERNEL))) { -+ ERROR("Failed to allocate fragment block cache\n"); -+ goto failed_mount; -+ } -+ -+ for (i = 0; i < SQUASHFS_CACHED_FRAGMENTS; i++) { -+ msblk->fragment[i].locked = 0; -+ msblk->fragment[i].block = SQUASHFS_INVALID_BLK; -+ msblk->fragment[i].data = NULL; -+ } -+ -+ msblk->next_fragment = 0; -+ -+ /* Allocate and read fragment index table */ -+ if (msblk->read_fragment_index_table(s) == 0) -+ goto failed_mount; -+ -+ if(sblk->s_major < 3 || sblk->lookup_table_start == SQUASHFS_INVALID_BLK) -+ goto allocate_root; -+ -+ /* Allocate and read inode lookup table */ -+ if (read_inode_lookup_table(s) == 0) -+ goto failed_mount; -+ -+ s->s_op = &squashfs_export_super_ops; -+ s->s_export_op = &squashfs_export_ops; -+ -+allocate_root: -+ root = new_inode(s); -+ if ((msblk->read_inode)(root, sblk->root_inode) == 0) -+ goto failed_mount; -+ insert_inode_hash(root); -+ -+ if ((s->s_root = d_alloc_root(root)) == NULL) { -+ ERROR("Root inode create failed\n"); -+ iput(root); -+ goto failed_mount; -+ } -+ -+ TRACE("Leaving squashfs_read_super\n"); -+ return 0; -+ -+failed_mount: -+ kfree(msblk->inode_lookup_table); -+ kfree(msblk->fragment_index); -+ kfree(msblk->fragment); -+ kfree(msblk->uid); -+ kfree(msblk->read_page); -+ kfree(msblk->block_cache); -+ kfree(msblk->fragment_index_2); -+ vfree(msblk->stream.workspace); -+ kfree(s->s_fs_info); -+ s->s_fs_info = NULL; -+ return -EINVAL; -+ -+failure: -+ return -ENOMEM; -+} -+ -+ -+static int squashfs_statfs(struct dentry *dentry, struct kstatfs *buf) -+{ -+ struct squashfs_sb_info *msblk = dentry->d_sb->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ -+ TRACE("Entered squashfs_statfs\n"); -+ -+ buf->f_type = SQUASHFS_MAGIC; -+ buf->f_bsize = sblk->block_size; -+ buf->f_blocks = ((sblk->bytes_used - 1) >> sblk->block_log) + 1; -+ buf->f_bfree = buf->f_bavail = 0; -+ buf->f_files = sblk->inodes; -+ buf->f_ffree = 0; -+ buf->f_namelen = SQUASHFS_NAME_LEN; -+ -+ return 0; -+} -+ -+ -+static int squashfs_symlink_readpage(struct file *file, struct page *page) -+{ -+ struct inode *inode = page->mapping->host; -+ int index = page->index << PAGE_CACHE_SHIFT, length, bytes; -+ long long block = SQUASHFS_I(inode)->start_block; -+ int offset = SQUASHFS_I(inode)->offset; -+ void *pageaddr = kmap(page); -+ -+ TRACE("Entered squashfs_symlink_readpage, page index %ld, start block " -+ "%llx, offset %x\n", page->index, -+ SQUASHFS_I(inode)->start_block, -+ SQUASHFS_I(inode)->offset); -+ -+ for (length = 0; length < index; length += bytes) { -+ if (!(bytes = squashfs_get_cached_block(inode->i_sb, NULL, -+ block, offset, PAGE_CACHE_SIZE, &block, -+ &offset))) { -+ ERROR("Unable to read symbolic link [%llx:%x]\n", block, -+ offset); -+ goto skip_read; -+ } -+ } -+ -+ if (length != index) { -+ ERROR("(squashfs_symlink_readpage) length != index\n"); -+ bytes = 0; -+ goto skip_read; -+ } -+ -+ bytes = (i_size_read(inode) - length) > PAGE_CACHE_SIZE ? PAGE_CACHE_SIZE : -+ i_size_read(inode) - length; -+ -+ if (!(bytes = squashfs_get_cached_block(inode->i_sb, pageaddr, block, -+ offset, bytes, &block, &offset))) -+ ERROR("Unable to read symbolic link [%llx:%x]\n", block, offset); -+ -+skip_read: -+ memset(pageaddr + bytes, 0, PAGE_CACHE_SIZE - bytes); -+ kunmap(page); -+ flush_dcache_page(page); -+ SetPageUptodate(page); -+ unlock_page(page); -+ -+ return 0; -+} -+ -+ -+struct meta_index *locate_meta_index(struct inode *inode, int index, int offset) -+{ -+ struct meta_index *meta = NULL; -+ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info; -+ int i; -+ -+ mutex_lock(&msblk->meta_index_mutex); -+ -+ TRACE("locate_meta_index: index %d, offset %d\n", index, offset); -+ -+ if(msblk->meta_index == NULL) -+ goto not_allocated; -+ -+ for (i = 0; i < SQUASHFS_META_NUMBER; i ++) -+ if (msblk->meta_index[i].inode_number == inode->i_ino && -+ msblk->meta_index[i].offset >= offset && -+ msblk->meta_index[i].offset <= index && -+ msblk->meta_index[i].locked == 0) { -+ TRACE("locate_meta_index: entry %d, offset %d\n", i, -+ msblk->meta_index[i].offset); -+ meta = &msblk->meta_index[i]; -+ offset = meta->offset; -+ } -+ -+ if (meta) -+ meta->locked = 1; -+ -+not_allocated: -+ mutex_unlock(&msblk->meta_index_mutex); -+ -+ return meta; -+} -+ -+ -+struct meta_index *empty_meta_index(struct inode *inode, int offset, int skip) -+{ -+ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info; -+ struct meta_index *meta = NULL; -+ int i; -+ -+ mutex_lock(&msblk->meta_index_mutex); -+ -+ TRACE("empty_meta_index: offset %d, skip %d\n", offset, skip); -+ -+ if(msblk->meta_index == NULL) { -+ if (!(msblk->meta_index = kmalloc(sizeof(struct meta_index) * -+ SQUASHFS_META_NUMBER, GFP_KERNEL))) { -+ ERROR("Failed to allocate meta_index\n"); -+ goto failed; -+ } -+ for(i = 0; i < SQUASHFS_META_NUMBER; i++) { -+ msblk->meta_index[i].inode_number = 0; -+ msblk->meta_index[i].locked = 0; -+ } -+ msblk->next_meta_index = 0; -+ } -+ -+ for(i = SQUASHFS_META_NUMBER; i && -+ msblk->meta_index[msblk->next_meta_index].locked; i --) -+ msblk->next_meta_index = (msblk->next_meta_index + 1) % -+ SQUASHFS_META_NUMBER; -+ -+ if(i == 0) { -+ TRACE("empty_meta_index: failed!\n"); -+ goto failed; -+ } -+ -+ TRACE("empty_meta_index: returned meta entry %d, %p\n", -+ msblk->next_meta_index, -+ &msblk->meta_index[msblk->next_meta_index]); -+ -+ meta = &msblk->meta_index[msblk->next_meta_index]; -+ msblk->next_meta_index = (msblk->next_meta_index + 1) % -+ SQUASHFS_META_NUMBER; -+ -+ meta->inode_number = inode->i_ino; -+ meta->offset = offset; -+ meta->skip = skip; -+ meta->entries = 0; -+ meta->locked = 1; -+ -+failed: -+ mutex_unlock(&msblk->meta_index_mutex); -+ return meta; -+} -+ -+ -+void release_meta_index(struct inode *inode, struct meta_index *meta) -+{ -+ meta->locked = 0; -+ smp_mb(); -+} -+ -+ -+static int read_block_index(struct super_block *s, int blocks, char *block_list, -+ long long *start_block, int *offset) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ unsigned int *block_listp; -+ int block = 0; -+ -+ if (msblk->swap) { -+ char sblock_list[blocks << 2]; -+ -+ if (!squashfs_get_cached_block(s, sblock_list, *start_block, -+ *offset, blocks << 2, start_block, offset)) { -+ ERROR("Unable to read block list [%llx:%x]\n", -+ *start_block, *offset); -+ goto failure; -+ } -+ SQUASHFS_SWAP_INTS(((unsigned int *)block_list), -+ ((unsigned int *)sblock_list), blocks); -+ } else -+ if (!squashfs_get_cached_block(s, block_list, *start_block, -+ *offset, blocks << 2, start_block, offset)) { -+ ERROR("Unable to read block list [%llx:%x]\n", -+ *start_block, *offset); -+ goto failure; -+ } -+ -+ for (block_listp = (unsigned int *) block_list; blocks; -+ block_listp++, blocks --) -+ block += SQUASHFS_COMPRESSED_SIZE_BLOCK(*block_listp); -+ -+ return block; -+ -+failure: -+ return -1; -+} -+ -+ -+#define SIZE 256 -+ -+static inline int calculate_skip(int blocks) { -+ int skip = (blocks - 1) / ((SQUASHFS_SLOTS * SQUASHFS_META_ENTRIES + 1) * SQUASHFS_META_INDEXES); -+ return skip >= 7 ? 7 : skip + 1; -+} -+ -+ -+static int get_meta_index(struct inode *inode, int index, -+ long long *index_block, int *index_offset, -+ long long *data_block, char *block_list) -+{ -+ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ int skip = calculate_skip(i_size_read(inode) >> sblk->block_log); -+ int offset = 0; -+ struct meta_index *meta; -+ struct meta_entry *meta_entry; -+ long long cur_index_block = SQUASHFS_I(inode)->u.s1.block_list_start; -+ int cur_offset = SQUASHFS_I(inode)->offset; -+ long long cur_data_block = SQUASHFS_I(inode)->start_block; -+ int i; -+ -+ index /= SQUASHFS_META_INDEXES * skip; -+ -+ while ( offset < index ) { -+ meta = locate_meta_index(inode, index, offset + 1); -+ -+ if (meta == NULL) { -+ if ((meta = empty_meta_index(inode, offset + 1, -+ skip)) == NULL) -+ goto all_done; -+ } else { -+ if(meta->entries == 0) -+ goto failed; -+ offset = index < meta->offset + meta->entries ? index : -+ meta->offset + meta->entries - 1; -+ meta_entry = &meta->meta_entry[offset - meta->offset]; -+ cur_index_block = meta_entry->index_block + sblk->inode_table_start; -+ cur_offset = meta_entry->offset; -+ cur_data_block = meta_entry->data_block; -+ TRACE("get_meta_index: offset %d, meta->offset %d, " -+ "meta->entries %d\n", offset, meta->offset, -+ meta->entries); -+ TRACE("get_meta_index: index_block 0x%llx, offset 0x%x" -+ " data_block 0x%llx\n", cur_index_block, -+ cur_offset, cur_data_block); -+ } -+ -+ for (i = meta->offset + meta->entries; i <= index && -+ i < meta->offset + SQUASHFS_META_ENTRIES; i++) { -+ int blocks = skip * SQUASHFS_META_INDEXES; -+ -+ while (blocks) { -+ int block = blocks > (SIZE >> 2) ? (SIZE >> 2) : -+ blocks; -+ int res = read_block_index(inode->i_sb, block, -+ block_list, &cur_index_block, -+ &cur_offset); -+ -+ if (res == -1) -+ goto failed; -+ -+ cur_data_block += res; -+ blocks -= block; -+ } -+ -+ meta_entry = &meta->meta_entry[i - meta->offset]; -+ meta_entry->index_block = cur_index_block - sblk->inode_table_start; -+ meta_entry->offset = cur_offset; -+ meta_entry->data_block = cur_data_block; -+ meta->entries ++; -+ offset ++; -+ } -+ -+ TRACE("get_meta_index: meta->offset %d, meta->entries %d\n", -+ meta->offset, meta->entries); -+ -+ release_meta_index(inode, meta); -+ } -+ -+all_done: -+ *index_block = cur_index_block; -+ *index_offset = cur_offset; -+ *data_block = cur_data_block; -+ -+ return offset * SQUASHFS_META_INDEXES * skip; -+ -+failed: -+ release_meta_index(inode, meta); -+ return -1; -+} -+ -+ -+static long long read_blocklist(struct inode *inode, int index, -+ int readahead_blks, char *block_list, -+ unsigned short **block_p, unsigned int *bsize) -+{ -+ long long block_ptr; -+ int offset; -+ long long block; -+ int res = get_meta_index(inode, index, &block_ptr, &offset, &block, -+ block_list); -+ -+ TRACE("read_blocklist: res %d, index %d, block_ptr 0x%llx, offset" -+ " 0x%x, block 0x%llx\n", res, index, block_ptr, offset, -+ block); -+ -+ if(res == -1) -+ goto failure; -+ -+ index -= res; -+ -+ while ( index ) { -+ int blocks = index > (SIZE >> 2) ? (SIZE >> 2) : index; -+ int res = read_block_index(inode->i_sb, blocks, block_list, -+ &block_ptr, &offset); -+ if (res == -1) -+ goto failure; -+ block += res; -+ index -= blocks; -+ } -+ -+ if (read_block_index(inode->i_sb, 1, block_list, -+ &block_ptr, &offset) == -1) -+ goto failure; -+ *bsize = *((unsigned int *) block_list); -+ -+ return block; -+ -+failure: -+ return 0; -+} -+ -+ -+static int squashfs_readpage(struct file *file, struct page *page) -+{ -+ struct inode *inode = page->mapping->host; -+ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ unsigned char *block_list; -+ long long block; -+ unsigned int bsize, i = 0, bytes = 0, byte_offset = 0; -+ int index = page->index >> (sblk->block_log - PAGE_CACHE_SHIFT); -+ void *pageaddr; -+ struct squashfs_fragment_cache *fragment = NULL; -+ char *data_ptr = msblk->read_page; -+ -+ int mask = (1 << (sblk->block_log - PAGE_CACHE_SHIFT)) - 1; -+ int start_index = page->index & ~mask; -+ int end_index = start_index | mask; -+ -+ TRACE("Entered squashfs_readpage, page index %lx, start block %llx\n", -+ page->index, -+ SQUASHFS_I(inode)->start_block); -+ -+ if (!(block_list = kmalloc(SIZE, GFP_KERNEL))) { -+ ERROR("Failed to allocate block_list\n"); -+ goto skip_read; -+ } -+ -+ if (page->index >= ((i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> -+ PAGE_CACHE_SHIFT)) -+ goto skip_read; -+ -+ if (SQUASHFS_I(inode)->u.s1.fragment_start_block == SQUASHFS_INVALID_BLK -+ || index < (i_size_read(inode) >> -+ sblk->block_log)) { -+ if ((block = (msblk->read_blocklist)(inode, index, 1, -+ block_list, NULL, &bsize)) == 0) -+ goto skip_read; -+ -+ mutex_lock(&msblk->read_page_mutex); -+ -+ if (!(bytes = squashfs_read_data(inode->i_sb, msblk->read_page, -+ block, bsize, NULL, sblk->block_size))) { -+ ERROR("Unable to read page, block %llx, size %x\n", block, -+ bsize); -+ mutex_unlock(&msblk->read_page_mutex); -+ goto skip_read; -+ } -+ } else { -+ if ((fragment = get_cached_fragment(inode->i_sb, -+ SQUASHFS_I(inode)-> -+ u.s1.fragment_start_block, -+ SQUASHFS_I(inode)->u.s1.fragment_size)) -+ == NULL) { -+ ERROR("Unable to read page, block %llx, size %x\n", -+ SQUASHFS_I(inode)-> -+ u.s1.fragment_start_block, -+ (int) SQUASHFS_I(inode)-> -+ u.s1.fragment_size); -+ goto skip_read; -+ } -+ bytes = SQUASHFS_I(inode)->u.s1.fragment_offset + -+ (i_size_read(inode) & (sblk->block_size -+ - 1)); -+ byte_offset = SQUASHFS_I(inode)->u.s1.fragment_offset; -+ data_ptr = fragment->data; -+ } -+ -+ for (i = start_index; i <= end_index && byte_offset < bytes; -+ i++, byte_offset += PAGE_CACHE_SIZE) { -+ struct page *push_page; -+ int avail = (bytes - byte_offset) > PAGE_CACHE_SIZE ? -+ PAGE_CACHE_SIZE : bytes - byte_offset; -+ -+ TRACE("bytes %d, i %d, byte_offset %d, available_bytes %d\n", -+ bytes, i, byte_offset, avail); -+ -+ push_page = (i == page->index) ? page : -+ grab_cache_page_nowait(page->mapping, i); -+ -+ if (!push_page) -+ continue; -+ -+ if (PageUptodate(push_page)) -+ goto skip_page; -+ -+ pageaddr = kmap_atomic(push_page, KM_USER0); -+ memcpy(pageaddr, data_ptr + byte_offset, avail); -+ memset(pageaddr + avail, 0, PAGE_CACHE_SIZE - avail); -+ kunmap_atomic(pageaddr, KM_USER0); -+ flush_dcache_page(push_page); -+ SetPageUptodate(push_page); -+skip_page: -+ unlock_page(push_page); -+ if(i != page->index) -+ page_cache_release(push_page); -+ } -+ -+ if (SQUASHFS_I(inode)->u.s1.fragment_start_block == SQUASHFS_INVALID_BLK -+ || index < (i_size_read(inode) >> -+ sblk->block_log)) -+ mutex_unlock(&msblk->read_page_mutex); -+ else -+ release_cached_fragment(msblk, fragment); -+ -+ kfree(block_list); -+ return 0; -+ -+skip_read: -+ pageaddr = kmap_atomic(page, KM_USER0); -+ memset(pageaddr + bytes, 0, PAGE_CACHE_SIZE - bytes); -+ kunmap_atomic(pageaddr, KM_USER0); -+ flush_dcache_page(page); -+ SetPageUptodate(page); -+ unlock_page(page); -+ -+ kfree(block_list); -+ return 0; -+} -+ -+ -+static int squashfs_readpage4K(struct file *file, struct page *page) -+{ -+ struct inode *inode = page->mapping->host; -+ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ unsigned char *block_list; -+ long long block; -+ unsigned int bsize, bytes = 0; -+ void *pageaddr; -+ -+ TRACE("Entered squashfs_readpage4K, page index %lx, start block %llx\n", -+ page->index, -+ SQUASHFS_I(inode)->start_block); -+ -+ if (page->index >= ((i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> -+ PAGE_CACHE_SHIFT)) { -+ block_list = NULL; -+ goto skip_read; -+ } -+ -+ if (!(block_list = kmalloc(SIZE, GFP_KERNEL))) { -+ ERROR("Failed to allocate block_list\n"); -+ goto skip_read; -+ } -+ -+ if (SQUASHFS_I(inode)->u.s1.fragment_start_block == SQUASHFS_INVALID_BLK -+ || page->index < (i_size_read(inode) >> -+ sblk->block_log)) { -+ block = (msblk->read_blocklist)(inode, page->index, 1, -+ block_list, NULL, &bsize); -+ if(block == 0) -+ goto skip_read; -+ -+ mutex_lock(&msblk->read_page_mutex); -+ bytes = squashfs_read_data(inode->i_sb, msblk->read_page, block, -+ bsize, NULL, sblk->block_size); -+ if (bytes) { -+ pageaddr = kmap_atomic(page, KM_USER0); -+ memcpy(pageaddr, msblk->read_page, bytes); -+ kunmap_atomic(pageaddr, KM_USER0); -+ } else -+ ERROR("Unable to read page, block %llx, size %x\n", -+ block, bsize); -+ mutex_unlock(&msblk->read_page_mutex); -+ } else { -+ struct squashfs_fragment_cache *fragment = -+ get_cached_fragment(inode->i_sb, -+ SQUASHFS_I(inode)-> -+ u.s1.fragment_start_block, -+ SQUASHFS_I(inode)-> u.s1.fragment_size); -+ if (fragment) { -+ bytes = i_size_read(inode) & (sblk->block_size - 1); -+ pageaddr = kmap_atomic(page, KM_USER0); -+ memcpy(pageaddr, fragment->data + SQUASHFS_I(inode)-> -+ u.s1.fragment_offset, bytes); -+ kunmap_atomic(pageaddr, KM_USER0); -+ release_cached_fragment(msblk, fragment); -+ } else -+ ERROR("Unable to read page, block %llx, size %x\n", -+ SQUASHFS_I(inode)-> -+ u.s1.fragment_start_block, (int) -+ SQUASHFS_I(inode)-> u.s1.fragment_size); -+ } -+ -+skip_read: -+ pageaddr = kmap_atomic(page, KM_USER0); -+ memset(pageaddr + bytes, 0, PAGE_CACHE_SIZE - bytes); -+ kunmap_atomic(pageaddr, KM_USER0); -+ flush_dcache_page(page); -+ SetPageUptodate(page); -+ unlock_page(page); -+ -+ kfree(block_list); -+ return 0; -+} -+ -+ -+static int get_dir_index_using_offset(struct super_block *s, long long -+ *next_block, unsigned int *next_offset, -+ long long index_start, -+ unsigned int index_offset, int i_count, -+ long long f_pos) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ int i, length = 0; -+ struct squashfs_dir_index index; -+ -+ TRACE("Entered get_dir_index_using_offset, i_count %d, f_pos %d\n", -+ i_count, (unsigned int) f_pos); -+ -+ f_pos =- 3; -+ if (f_pos == 0) -+ goto finish; -+ -+ for (i = 0; i < i_count; i++) { -+ if (msblk->swap) { -+ struct squashfs_dir_index sindex; -+ squashfs_get_cached_block(s, (char *) &sindex, -+ index_start, index_offset, -+ sizeof(sindex), &index_start, -+ &index_offset); -+ SQUASHFS_SWAP_DIR_INDEX(&index, &sindex); -+ } else -+ squashfs_get_cached_block(s, (char *) &index, -+ index_start, index_offset, -+ sizeof(index), &index_start, -+ &index_offset); -+ -+ if (index.index > f_pos) -+ break; -+ -+ squashfs_get_cached_block(s, NULL, index_start, index_offset, -+ index.size + 1, &index_start, -+ &index_offset); -+ -+ length = index.index; -+ *next_block = index.start_block + sblk->directory_table_start; -+ } -+ -+ *next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE; -+ -+finish: -+ return length + 3; -+} -+ -+ -+static int get_dir_index_using_name(struct super_block *s, long long -+ *next_block, unsigned int *next_offset, -+ long long index_start, -+ unsigned int index_offset, int i_count, -+ const char *name, int size) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ int i, length = 0; -+ struct squashfs_dir_index *index; -+ char *str; -+ -+ TRACE("Entered get_dir_index_using_name, i_count %d\n", i_count); -+ -+ if (!(str = kmalloc(sizeof(struct squashfs_dir_index) + -+ (SQUASHFS_NAME_LEN + 1) * 2, GFP_KERNEL))) { -+ ERROR("Failed to allocate squashfs_dir_index\n"); -+ goto failure; -+ } -+ -+ index = (struct squashfs_dir_index *) (str + SQUASHFS_NAME_LEN + 1); -+ strncpy(str, name, size); -+ str[size] = '\0'; -+ -+ for (i = 0; i < i_count; i++) { -+ if (msblk->swap) { -+ struct squashfs_dir_index sindex; -+ squashfs_get_cached_block(s, (char *) &sindex, -+ index_start, index_offset, -+ sizeof(sindex), &index_start, -+ &index_offset); -+ SQUASHFS_SWAP_DIR_INDEX(index, &sindex); -+ } else -+ squashfs_get_cached_block(s, (char *) index, -+ index_start, index_offset, -+ sizeof(struct squashfs_dir_index), -+ &index_start, &index_offset); -+ -+ squashfs_get_cached_block(s, index->name, index_start, -+ index_offset, index->size + 1, -+ &index_start, &index_offset); -+ -+ index->name[index->size + 1] = '\0'; -+ -+ if (strcmp(index->name, str) > 0) -+ break; -+ -+ length = index->index; -+ *next_block = index->start_block + sblk->directory_table_start; -+ } -+ -+ *next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE; -+ kfree(str); -+failure: -+ return length + 3; -+} -+ -+ -+static int squashfs_readdir(struct file *file, void *dirent, filldir_t filldir) -+{ -+ struct inode *i = file->f_dentry->d_inode; -+ struct squashfs_sb_info *msblk = i->i_sb->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ long long next_block = SQUASHFS_I(i)->start_block + -+ sblk->directory_table_start; -+ int next_offset = SQUASHFS_I(i)->offset, length = 0, -+ dir_count; -+ struct squashfs_dir_header dirh; -+ struct squashfs_dir_entry *dire; -+ -+ TRACE("Entered squashfs_readdir [%llx:%x]\n", next_block, next_offset); -+ -+ if (!(dire = kmalloc(sizeof(struct squashfs_dir_entry) + -+ SQUASHFS_NAME_LEN + 1, GFP_KERNEL))) { -+ ERROR("Failed to allocate squashfs_dir_entry\n"); -+ goto finish; -+ } -+ -+ while(file->f_pos < 3) { -+ char *name; -+ int size, i_ino; -+ -+ if(file->f_pos == 0) { -+ name = "."; -+ size = 1; -+ i_ino = i->i_ino; -+ } else { -+ name = ".."; -+ size = 2; -+ i_ino = SQUASHFS_I(i)->u.s2.parent_inode; -+ } -+ TRACE("Calling filldir(%x, %s, %d, %d, %d, %d)\n", -+ (unsigned int) dirent, name, size, (int) -+ file->f_pos, i_ino, -+ squashfs_filetype_table[1]); -+ -+ if (filldir(dirent, name, size, -+ file->f_pos, i_ino, -+ squashfs_filetype_table[1]) < 0) { -+ TRACE("Filldir returned less than 0\n"); -+ goto finish; -+ } -+ file->f_pos += size; -+ } -+ -+ length = get_dir_index_using_offset(i->i_sb, &next_block, &next_offset, -+ SQUASHFS_I(i)->u.s2.directory_index_start, -+ SQUASHFS_I(i)->u.s2.directory_index_offset, -+ SQUASHFS_I(i)->u.s2.directory_index_count, -+ file->f_pos); -+ -+ while (length < i_size_read(i)) { -+ /* read directory header */ -+ if (msblk->swap) { -+ struct squashfs_dir_header sdirh; -+ -+ if (!squashfs_get_cached_block(i->i_sb, (char *) &sdirh, -+ next_block, next_offset, sizeof(sdirh), -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(sdirh); -+ SQUASHFS_SWAP_DIR_HEADER(&dirh, &sdirh); -+ } else { -+ if (!squashfs_get_cached_block(i->i_sb, (char *) &dirh, -+ next_block, next_offset, sizeof(dirh), -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(dirh); -+ } -+ -+ dir_count = dirh.count + 1; -+ while (dir_count--) { -+ if (msblk->swap) { -+ struct squashfs_dir_entry sdire; -+ if (!squashfs_get_cached_block(i->i_sb, (char *) -+ &sdire, next_block, next_offset, -+ sizeof(sdire), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(sdire); -+ SQUASHFS_SWAP_DIR_ENTRY(dire, &sdire); -+ } else { -+ if (!squashfs_get_cached_block(i->i_sb, (char *) -+ dire, next_block, next_offset, -+ sizeof(*dire), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(*dire); -+ } -+ -+ if (!squashfs_get_cached_block(i->i_sb, dire->name, -+ next_block, next_offset, -+ dire->size + 1, &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += dire->size + 1; -+ -+ if (file->f_pos >= length) -+ continue; -+ -+ dire->name[dire->size + 1] = '\0'; -+ -+ TRACE("Calling filldir(%x, %s, %d, %d, %x:%x, %d, %d)\n", -+ (unsigned int) dirent, dire->name, -+ dire->size + 1, (int) file->f_pos, -+ dirh.start_block, dire->offset, -+ dirh.inode_number + dire->inode_number, -+ squashfs_filetype_table[dire->type]); -+ -+ if (filldir(dirent, dire->name, dire->size + 1, -+ file->f_pos, -+ dirh.inode_number + dire->inode_number, -+ squashfs_filetype_table[dire->type]) -+ < 0) { -+ TRACE("Filldir returned less than 0\n"); -+ goto finish; -+ } -+ file->f_pos = length; -+ } -+ } -+ -+finish: -+ kfree(dire); -+ return 0; -+ -+failed_read: -+ ERROR("Unable to read directory block [%llx:%x]\n", next_block, -+ next_offset); -+ kfree(dire); -+ return 0; -+} -+ -+ -+static struct dentry *squashfs_lookup(struct inode *i, struct dentry *dentry, -+ struct nameidata *nd) -+{ -+ const unsigned char *name = dentry->d_name.name; -+ int len = dentry->d_name.len; -+ struct inode *inode = NULL; -+ struct squashfs_sb_info *msblk = i->i_sb->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ long long next_block = SQUASHFS_I(i)->start_block + -+ sblk->directory_table_start; -+ int next_offset = SQUASHFS_I(i)->offset, length = 0, -+ dir_count; -+ struct squashfs_dir_header dirh; -+ struct squashfs_dir_entry *dire; -+ -+ TRACE("Entered squashfs_lookup [%llx:%x]\n", next_block, next_offset); -+ -+ if (!(dire = kmalloc(sizeof(struct squashfs_dir_entry) + -+ SQUASHFS_NAME_LEN + 1, GFP_KERNEL))) { -+ ERROR("Failed to allocate squashfs_dir_entry\n"); -+ goto exit_lookup; -+ } -+ -+ if (len > SQUASHFS_NAME_LEN) -+ goto exit_lookup; -+ -+ length = get_dir_index_using_name(i->i_sb, &next_block, &next_offset, -+ SQUASHFS_I(i)->u.s2.directory_index_start, -+ SQUASHFS_I(i)->u.s2.directory_index_offset, -+ SQUASHFS_I(i)->u.s2.directory_index_count, name, -+ len); -+ -+ while (length < i_size_read(i)) { -+ /* read directory header */ -+ if (msblk->swap) { -+ struct squashfs_dir_header sdirh; -+ if (!squashfs_get_cached_block(i->i_sb, (char *) &sdirh, -+ next_block, next_offset, sizeof(sdirh), -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(sdirh); -+ SQUASHFS_SWAP_DIR_HEADER(&dirh, &sdirh); -+ } else { -+ if (!squashfs_get_cached_block(i->i_sb, (char *) &dirh, -+ next_block, next_offset, sizeof(dirh), -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(dirh); -+ } -+ -+ dir_count = dirh.count + 1; -+ while (dir_count--) { -+ if (msblk->swap) { -+ struct squashfs_dir_entry sdire; -+ if (!squashfs_get_cached_block(i->i_sb, (char *) -+ &sdire, next_block,next_offset, -+ sizeof(sdire), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(sdire); -+ SQUASHFS_SWAP_DIR_ENTRY(dire, &sdire); -+ } else { -+ if (!squashfs_get_cached_block(i->i_sb, (char *) -+ dire, next_block,next_offset, -+ sizeof(*dire), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(*dire); -+ } -+ -+ if (!squashfs_get_cached_block(i->i_sb, dire->name, -+ next_block, next_offset, dire->size + 1, -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += dire->size + 1; -+ -+ if (name[0] < dire->name[0]) -+ goto exit_lookup; -+ -+ if ((len == dire->size + 1) && !strncmp(name, dire->name, len)) { -+ squashfs_inode_t ino = SQUASHFS_MKINODE(dirh.start_block, -+ dire->offset); -+ -+ TRACE("calling squashfs_iget for directory " -+ "entry %s, inode %x:%x, %d\n", name, -+ dirh.start_block, dire->offset, -+ dirh.inode_number + dire->inode_number); -+ -+ inode = squashfs_iget(i->i_sb, ino, dirh.inode_number + dire->inode_number); -+ -+ goto exit_lookup; -+ } -+ } -+ } -+ -+exit_lookup: -+ kfree(dire); -+ if (inode) -+ return d_splice_alias(inode, dentry); -+ d_add(dentry, inode); -+ return ERR_PTR(0); -+ -+failed_read: -+ ERROR("Unable to read directory block [%llx:%x]\n", next_block, -+ next_offset); -+ goto exit_lookup; -+} -+ -+ -+static int squashfs_remount(struct super_block *s, int *flags, char *data) -+{ -+ *flags |= MS_RDONLY; -+ return 0; -+} -+ -+ -+static void squashfs_put_super(struct super_block *s) -+{ -+ int i; -+ -+ if (s->s_fs_info) { -+ struct squashfs_sb_info *sbi = s->s_fs_info; -+ if (sbi->block_cache) -+ for (i = 0; i < SQUASHFS_CACHED_BLKS; i++) -+ if (sbi->block_cache[i].block != -+ SQUASHFS_INVALID_BLK) -+ kfree(sbi->block_cache[i].data); -+ if (sbi->fragment) -+ for (i = 0; i < SQUASHFS_CACHED_FRAGMENTS; i++) -+ SQUASHFS_FREE(sbi->fragment[i].data); -+ kfree(sbi->fragment); -+ kfree(sbi->block_cache); -+ kfree(sbi->read_page); -+ kfree(sbi->uid); -+ kfree(sbi->fragment_index); -+ kfree(sbi->fragment_index_2); -+ kfree(sbi->meta_index); -+ vfree(sbi->stream.workspace); -+ kfree(s->s_fs_info); -+ s->s_fs_info = NULL; -+ } -+} -+ -+ -+static int squashfs_get_sb(struct file_system_type *fs_type, int flags, -+ const char *dev_name, void *data, -+ struct vfsmount *mnt) -+{ -+ return get_sb_bdev(fs_type, flags, dev_name, data, squashfs_fill_super, -+ mnt); -+} -+ -+ -+static int __init init_squashfs_fs(void) -+{ -+ int err = init_inodecache(); -+ if (err) -+ goto out; -+ -+ printk(KERN_INFO "squashfs: version 3.2-r2 (2007/01/15) " -+ "Phillip Lougher\n"); -+ -+ if ((err = register_filesystem(&squashfs_fs_type))) -+ destroy_inodecache(); -+ -+out: -+ return err; -+} -+ -+ -+static void __exit exit_squashfs_fs(void) -+{ -+ unregister_filesystem(&squashfs_fs_type); -+ destroy_inodecache(); -+} -+ -+ -+static struct kmem_cache * squashfs_inode_cachep; -+ -+ -+static struct inode *squashfs_alloc_inode(struct super_block *sb) -+{ -+ struct squashfs_inode_info *ei; -+ ei = kmem_cache_alloc(squashfs_inode_cachep, GFP_KERNEL); -+ if (!ei) -+ return NULL; -+ return &ei->vfs_inode; -+} -+ -+ -+static void squashfs_destroy_inode(struct inode *inode) -+{ -+ kmem_cache_free(squashfs_inode_cachep, SQUASHFS_I(inode)); -+} -+ -+ -+static void init_once(void * foo, struct kmem_cache * cachep, unsigned long flags) -+{ -+ struct squashfs_inode_info *ei = foo; -+ -+ if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) == -+ SLAB_CTOR_CONSTRUCTOR) -+ inode_init_once(&ei->vfs_inode); -+} -+ -+ -+static int __init init_inodecache(void) -+{ -+ squashfs_inode_cachep = kmem_cache_create("squashfs_inode_cache", -+ sizeof(struct squashfs_inode_info), -+ 0, SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT, -+ init_once, NULL); -+ if (squashfs_inode_cachep == NULL) -+ return -ENOMEM; -+ return 0; -+} -+ -+ -+static void destroy_inodecache(void) -+{ -+ kmem_cache_destroy(squashfs_inode_cachep); -+} -+ -+ -+module_init(init_squashfs_fs); -+module_exit(exit_squashfs_fs); -+MODULE_DESCRIPTION("squashfs 3.2-r2, a compressed read-only filesystem"); -+MODULE_AUTHOR("Phillip Lougher "); -+MODULE_LICENSE("GPL"); ---- /dev/null -+++ linux-2.6.24-rc1/fs/squashfs/Makefile -@@ -0,0 +1,7 @@ -+# -+# Makefile for the linux squashfs routines. -+# -+ -+obj-$(CONFIG_SQUASHFS) += squashfs.o -+squashfs-y += inode.o -+squashfs-y += squashfs2_0.o ---- /dev/null -+++ linux-2.6.24-rc1/fs/squashfs/squashfs2_0.c -@@ -0,0 +1,742 @@ -+/* -+ * Squashfs - a compressed read only filesystem for Linux -+ * -+ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007 -+ * Phillip Lougher -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version 2, -+ * or (at your option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -+ * -+ * squashfs2_0.c -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include "squashfs.h" -+static int squashfs_readdir_2(struct file *file, void *dirent, filldir_t filldir); -+static struct dentry *squashfs_lookup_2(struct inode *, struct dentry *, -+ struct nameidata *); -+ -+static struct file_operations squashfs_dir_ops_2 = { -+ .read = generic_read_dir, -+ .readdir = squashfs_readdir_2 -+}; -+ -+static struct inode_operations squashfs_dir_inode_ops_2 = { -+ .lookup = squashfs_lookup_2 -+}; -+ -+static unsigned char squashfs_filetype_table[] = { -+ DT_UNKNOWN, DT_DIR, DT_REG, DT_LNK, DT_BLK, DT_CHR, DT_FIFO, DT_SOCK -+}; -+ -+static int read_fragment_index_table_2(struct super_block *s) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ -+ if (!(msblk->fragment_index_2 = kmalloc(SQUASHFS_FRAGMENT_INDEX_BYTES_2 -+ (sblk->fragments), GFP_KERNEL))) { -+ ERROR("Failed to allocate uid/gid table\n"); -+ return 0; -+ } -+ -+ if (SQUASHFS_FRAGMENT_INDEX_BYTES_2(sblk->fragments) && -+ !squashfs_read_data(s, (char *) -+ msblk->fragment_index_2, -+ sblk->fragment_table_start, -+ SQUASHFS_FRAGMENT_INDEX_BYTES_2 -+ (sblk->fragments) | -+ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, SQUASHFS_FRAGMENT_INDEX_BYTES_2(sblk->fragments))) { -+ ERROR("unable to read fragment index table\n"); -+ return 0; -+ } -+ -+ if (msblk->swap) { -+ int i; -+ unsigned int fragment; -+ -+ for (i = 0; i < SQUASHFS_FRAGMENT_INDEXES_2(sblk->fragments); -+ i++) { -+ SQUASHFS_SWAP_FRAGMENT_INDEXES_2((&fragment), -+ &msblk->fragment_index_2[i], 1); -+ msblk->fragment_index_2[i] = fragment; -+ } -+ } -+ -+ return 1; -+} -+ -+ -+static int get_fragment_location_2(struct super_block *s, unsigned int fragment, -+ long long *fragment_start_block, -+ unsigned int *fragment_size) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ long long start_block = -+ msblk->fragment_index_2[SQUASHFS_FRAGMENT_INDEX_2(fragment)]; -+ int offset = SQUASHFS_FRAGMENT_INDEX_OFFSET_2(fragment); -+ struct squashfs_fragment_entry_2 fragment_entry; -+ -+ if (msblk->swap) { -+ struct squashfs_fragment_entry_2 sfragment_entry; -+ -+ if (!squashfs_get_cached_block(s, (char *) &sfragment_entry, -+ start_block, offset, -+ sizeof(sfragment_entry), &start_block, -+ &offset)) -+ goto out; -+ SQUASHFS_SWAP_FRAGMENT_ENTRY_2(&fragment_entry, &sfragment_entry); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) &fragment_entry, -+ start_block, offset, -+ sizeof(fragment_entry), &start_block, -+ &offset)) -+ goto out; -+ -+ *fragment_start_block = fragment_entry.start_block; -+ *fragment_size = fragment_entry.size; -+ -+ return 1; -+ -+out: -+ return 0; -+} -+ -+ -+static void squashfs_new_inode(struct squashfs_sb_info *msblk, struct inode *i, -+ struct squashfs_base_inode_header_2 *inodeb, unsigned int ino) -+{ -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ -+ i->i_ino = ino; -+ i->i_mtime.tv_sec = sblk->mkfs_time; -+ i->i_atime.tv_sec = sblk->mkfs_time; -+ i->i_ctime.tv_sec = sblk->mkfs_time; -+ i->i_uid = msblk->uid[inodeb->uid]; -+ i->i_mode = inodeb->mode; -+ i->i_nlink = 1; -+ i->i_size = 0; -+ if (inodeb->guid == SQUASHFS_GUIDS) -+ i->i_gid = i->i_uid; -+ else -+ i->i_gid = msblk->guid[inodeb->guid]; -+} -+ -+ -+static int squashfs_read_inode_2(struct inode *i, squashfs_inode_t inode) -+{ -+ struct super_block *s = i->i_sb; -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ unsigned int block = SQUASHFS_INODE_BLK(inode) + -+ sblk->inode_table_start; -+ unsigned int offset = SQUASHFS_INODE_OFFSET(inode); -+ unsigned int ino = i->i_ino; -+ long long next_block; -+ unsigned int next_offset; -+ union squashfs_inode_header_2 id, sid; -+ struct squashfs_base_inode_header_2 *inodeb = &id.base, -+ *sinodeb = &sid.base; -+ -+ TRACE("Entered squashfs_iget\n"); -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) sinodeb, block, -+ offset, sizeof(*sinodeb), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_BASE_INODE_HEADER_2(inodeb, sinodeb, -+ sizeof(*sinodeb)); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) inodeb, block, -+ offset, sizeof(*inodeb), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ squashfs_new_inode(msblk, i, inodeb, ino); -+ -+ switch(inodeb->inode_type) { -+ case SQUASHFS_FILE_TYPE: { -+ struct squashfs_reg_inode_header_2 *inodep = &id.reg; -+ struct squashfs_reg_inode_header_2 *sinodep = &sid.reg; -+ long long frag_blk; -+ unsigned int frag_size = 0; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_REG_INODE_HEADER_2(inodep, sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ frag_blk = SQUASHFS_INVALID_BLK; -+ if (inodep->fragment != SQUASHFS_INVALID_FRAG && -+ !get_fragment_location_2(s, -+ inodep->fragment, &frag_blk, &frag_size)) -+ goto failed_read; -+ -+ i->i_size = inodep->file_size; -+ i->i_fop = &generic_ro_fops; -+ i->i_mode |= S_IFREG; -+ i->i_mtime.tv_sec = inodep->mtime; -+ i->i_atime.tv_sec = inodep->mtime; -+ i->i_ctime.tv_sec = inodep->mtime; -+ i->i_blocks = ((i->i_size - 1) >> 9) + 1; -+ SQUASHFS_I(i)->u.s1.fragment_start_block = frag_blk; -+ SQUASHFS_I(i)->u.s1.fragment_size = frag_size; -+ SQUASHFS_I(i)->u.s1.fragment_offset = inodep->offset; -+ SQUASHFS_I(i)->start_block = inodep->start_block; -+ SQUASHFS_I(i)->u.s1.block_list_start = next_block; -+ SQUASHFS_I(i)->offset = next_offset; -+ if (sblk->block_size > 4096) -+ i->i_data.a_ops = &squashfs_aops; -+ else -+ i->i_data.a_ops = &squashfs_aops_4K; -+ -+ TRACE("File inode %x:%x, start_block %x, " -+ "block_list_start %llx, offset %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ inodep->start_block, next_block, -+ next_offset); -+ break; -+ } -+ case SQUASHFS_DIR_TYPE: { -+ struct squashfs_dir_inode_header_2 *inodep = &id.dir; -+ struct squashfs_dir_inode_header_2 *sinodep = &sid.dir; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_DIR_INODE_HEADER_2(inodep, sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ i->i_size = inodep->file_size; -+ i->i_op = &squashfs_dir_inode_ops_2; -+ i->i_fop = &squashfs_dir_ops_2; -+ i->i_mode |= S_IFDIR; -+ i->i_mtime.tv_sec = inodep->mtime; -+ i->i_atime.tv_sec = inodep->mtime; -+ i->i_ctime.tv_sec = inodep->mtime; -+ SQUASHFS_I(i)->start_block = inodep->start_block; -+ SQUASHFS_I(i)->offset = inodep->offset; -+ SQUASHFS_I(i)->u.s2.directory_index_count = 0; -+ SQUASHFS_I(i)->u.s2.parent_inode = 0; -+ -+ TRACE("Directory inode %x:%x, start_block %x, offset " -+ "%x\n", SQUASHFS_INODE_BLK(inode), -+ offset, inodep->start_block, -+ inodep->offset); -+ break; -+ } -+ case SQUASHFS_LDIR_TYPE: { -+ struct squashfs_ldir_inode_header_2 *inodep = &id.ldir; -+ struct squashfs_ldir_inode_header_2 *sinodep = &sid.ldir; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_LDIR_INODE_HEADER_2(inodep, -+ sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ i->i_size = inodep->file_size; -+ i->i_op = &squashfs_dir_inode_ops_2; -+ i->i_fop = &squashfs_dir_ops_2; -+ i->i_mode |= S_IFDIR; -+ i->i_mtime.tv_sec = inodep->mtime; -+ i->i_atime.tv_sec = inodep->mtime; -+ i->i_ctime.tv_sec = inodep->mtime; -+ SQUASHFS_I(i)->start_block = inodep->start_block; -+ SQUASHFS_I(i)->offset = inodep->offset; -+ SQUASHFS_I(i)->u.s2.directory_index_start = next_block; -+ SQUASHFS_I(i)->u.s2.directory_index_offset = -+ next_offset; -+ SQUASHFS_I(i)->u.s2.directory_index_count = -+ inodep->i_count; -+ SQUASHFS_I(i)->u.s2.parent_inode = 0; -+ -+ TRACE("Long directory inode %x:%x, start_block %x, " -+ "offset %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ inodep->start_block, inodep->offset); -+ break; -+ } -+ case SQUASHFS_SYMLINK_TYPE: { -+ struct squashfs_symlink_inode_header_2 *inodep = -+ &id.symlink; -+ struct squashfs_symlink_inode_header_2 *sinodep = -+ &sid.symlink; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_SYMLINK_INODE_HEADER_2(inodep, -+ sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ i->i_size = inodep->symlink_size; -+ i->i_op = &page_symlink_inode_operations; -+ i->i_data.a_ops = &squashfs_symlink_aops; -+ i->i_mode |= S_IFLNK; -+ SQUASHFS_I(i)->start_block = next_block; -+ SQUASHFS_I(i)->offset = next_offset; -+ -+ TRACE("Symbolic link inode %x:%x, start_block %llx, " -+ "offset %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ next_block, next_offset); -+ break; -+ } -+ case SQUASHFS_BLKDEV_TYPE: -+ case SQUASHFS_CHRDEV_TYPE: { -+ struct squashfs_dev_inode_header_2 *inodep = &id.dev; -+ struct squashfs_dev_inode_header_2 *sinodep = &sid.dev; -+ -+ if (msblk->swap) { -+ if (!squashfs_get_cached_block(s, (char *) -+ sinodep, block, offset, -+ sizeof(*sinodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ SQUASHFS_SWAP_DEV_INODE_HEADER_2(inodep, sinodep); -+ } else -+ if (!squashfs_get_cached_block(s, (char *) -+ inodep, block, offset, -+ sizeof(*inodep), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ i->i_mode |= (inodeb->inode_type == -+ SQUASHFS_CHRDEV_TYPE) ? S_IFCHR : -+ S_IFBLK; -+ init_special_inode(i, i->i_mode, -+ old_decode_dev(inodep->rdev)); -+ -+ TRACE("Device inode %x:%x, rdev %x\n", -+ SQUASHFS_INODE_BLK(inode), offset, -+ inodep->rdev); -+ break; -+ } -+ case SQUASHFS_FIFO_TYPE: -+ case SQUASHFS_SOCKET_TYPE: { -+ -+ i->i_mode |= (inodeb->inode_type == SQUASHFS_FIFO_TYPE) -+ ? S_IFIFO : S_IFSOCK; -+ init_special_inode(i, i->i_mode, 0); -+ break; -+ } -+ default: -+ ERROR("Unknown inode type %d in squashfs_iget!\n", -+ inodeb->inode_type); -+ goto failed_read1; -+ } -+ -+ return 1; -+ -+failed_read: -+ ERROR("Unable to read inode [%x:%x]\n", block, offset); -+ -+failed_read1: -+ return 0; -+} -+ -+ -+static int get_dir_index_using_offset(struct super_block *s, long long -+ *next_block, unsigned int *next_offset, -+ long long index_start, -+ unsigned int index_offset, int i_count, -+ long long f_pos) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ int i, length = 0; -+ struct squashfs_dir_index_2 index; -+ -+ TRACE("Entered get_dir_index_using_offset, i_count %d, f_pos %d\n", -+ i_count, (unsigned int) f_pos); -+ -+ if (f_pos == 0) -+ goto finish; -+ -+ for (i = 0; i < i_count; i++) { -+ if (msblk->swap) { -+ struct squashfs_dir_index_2 sindex; -+ squashfs_get_cached_block(s, (char *) &sindex, -+ index_start, index_offset, -+ sizeof(sindex), &index_start, -+ &index_offset); -+ SQUASHFS_SWAP_DIR_INDEX_2(&index, &sindex); -+ } else -+ squashfs_get_cached_block(s, (char *) &index, -+ index_start, index_offset, -+ sizeof(index), &index_start, -+ &index_offset); -+ -+ if (index.index > f_pos) -+ break; -+ -+ squashfs_get_cached_block(s, NULL, index_start, index_offset, -+ index.size + 1, &index_start, -+ &index_offset); -+ -+ length = index.index; -+ *next_block = index.start_block + sblk->directory_table_start; -+ } -+ -+ *next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE; -+ -+finish: -+ return length; -+} -+ -+ -+static int get_dir_index_using_name(struct super_block *s, long long -+ *next_block, unsigned int *next_offset, -+ long long index_start, -+ unsigned int index_offset, int i_count, -+ const char *name, int size) -+{ -+ struct squashfs_sb_info *msblk = s->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ int i, length = 0; -+ struct squashfs_dir_index_2 *index; -+ char *str; -+ -+ TRACE("Entered get_dir_index_using_name, i_count %d\n", i_count); -+ -+ if (!(str = kmalloc(sizeof(struct squashfs_dir_index) + -+ (SQUASHFS_NAME_LEN + 1) * 2, GFP_KERNEL))) { -+ ERROR("Failed to allocate squashfs_dir_index\n"); -+ goto failure; -+ } -+ -+ index = (struct squashfs_dir_index_2 *) (str + SQUASHFS_NAME_LEN + 1); -+ strncpy(str, name, size); -+ str[size] = '\0'; -+ -+ for (i = 0; i < i_count; i++) { -+ if (msblk->swap) { -+ struct squashfs_dir_index_2 sindex; -+ squashfs_get_cached_block(s, (char *) &sindex, -+ index_start, index_offset, -+ sizeof(sindex), &index_start, -+ &index_offset); -+ SQUASHFS_SWAP_DIR_INDEX_2(index, &sindex); -+ } else -+ squashfs_get_cached_block(s, (char *) index, -+ index_start, index_offset, -+ sizeof(struct squashfs_dir_index_2), -+ &index_start, &index_offset); -+ -+ squashfs_get_cached_block(s, index->name, index_start, -+ index_offset, index->size + 1, -+ &index_start, &index_offset); -+ -+ index->name[index->size + 1] = '\0'; -+ -+ if (strcmp(index->name, str) > 0) -+ break; -+ -+ length = index->index; -+ *next_block = index->start_block + sblk->directory_table_start; -+ } -+ -+ *next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE; -+ kfree(str); -+failure: -+ return length; -+} -+ -+ -+static int squashfs_readdir_2(struct file *file, void *dirent, filldir_t filldir) -+{ -+ struct inode *i = file->f_dentry->d_inode; -+ struct squashfs_sb_info *msblk = i->i_sb->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ long long next_block = SQUASHFS_I(i)->start_block + -+ sblk->directory_table_start; -+ int next_offset = SQUASHFS_I(i)->offset, length = 0, -+ dir_count; -+ struct squashfs_dir_header_2 dirh; -+ struct squashfs_dir_entry_2 *dire; -+ -+ TRACE("Entered squashfs_readdir_2 [%llx:%x]\n", next_block, next_offset); -+ -+ if (!(dire = kmalloc(sizeof(struct squashfs_dir_entry) + -+ SQUASHFS_NAME_LEN + 1, GFP_KERNEL))) { -+ ERROR("Failed to allocate squashfs_dir_entry\n"); -+ goto finish; -+ } -+ -+ length = get_dir_index_using_offset(i->i_sb, &next_block, &next_offset, -+ SQUASHFS_I(i)->u.s2.directory_index_start, -+ SQUASHFS_I(i)->u.s2.directory_index_offset, -+ SQUASHFS_I(i)->u.s2.directory_index_count, -+ file->f_pos); -+ -+ while (length < i_size_read(i)) { -+ /* read directory header */ -+ if (msblk->swap) { -+ struct squashfs_dir_header_2 sdirh; -+ -+ if (!squashfs_get_cached_block(i->i_sb, (char *) &sdirh, -+ next_block, next_offset, sizeof(sdirh), -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(sdirh); -+ SQUASHFS_SWAP_DIR_HEADER_2(&dirh, &sdirh); -+ } else { -+ if (!squashfs_get_cached_block(i->i_sb, (char *) &dirh, -+ next_block, next_offset, sizeof(dirh), -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(dirh); -+ } -+ -+ dir_count = dirh.count + 1; -+ while (dir_count--) { -+ if (msblk->swap) { -+ struct squashfs_dir_entry_2 sdire; -+ if (!squashfs_get_cached_block(i->i_sb, (char *) -+ &sdire, next_block, next_offset, -+ sizeof(sdire), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(sdire); -+ SQUASHFS_SWAP_DIR_ENTRY_2(dire, &sdire); -+ } else { -+ if (!squashfs_get_cached_block(i->i_sb, (char *) -+ dire, next_block, next_offset, -+ sizeof(*dire), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(*dire); -+ } -+ -+ if (!squashfs_get_cached_block(i->i_sb, dire->name, -+ next_block, next_offset, -+ dire->size + 1, &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += dire->size + 1; -+ -+ if (file->f_pos >= length) -+ continue; -+ -+ dire->name[dire->size + 1] = '\0'; -+ -+ TRACE("Calling filldir(%x, %s, %d, %d, %x:%x, %d)\n", -+ (unsigned int) dirent, dire->name, -+ dire->size + 1, (int) file->f_pos, -+ dirh.start_block, dire->offset, -+ squashfs_filetype_table[dire->type]); -+ -+ if (filldir(dirent, dire->name, dire->size + 1, -+ file->f_pos, SQUASHFS_MK_VFS_INODE( -+ dirh.start_block, dire->offset), -+ squashfs_filetype_table[dire->type]) -+ < 0) { -+ TRACE("Filldir returned less than 0\n"); -+ goto finish; -+ } -+ file->f_pos = length; -+ } -+ } -+ -+finish: -+ kfree(dire); -+ return 0; -+ -+failed_read: -+ ERROR("Unable to read directory block [%llx:%x]\n", next_block, -+ next_offset); -+ kfree(dire); -+ return 0; -+} -+ -+ -+static struct dentry *squashfs_lookup_2(struct inode *i, struct dentry *dentry, -+ struct nameidata *nd) -+{ -+ const unsigned char *name = dentry->d_name.name; -+ int len = dentry->d_name.len; -+ struct inode *inode = NULL; -+ struct squashfs_sb_info *msblk = i->i_sb->s_fs_info; -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ long long next_block = SQUASHFS_I(i)->start_block + -+ sblk->directory_table_start; -+ int next_offset = SQUASHFS_I(i)->offset, length = 0, -+ dir_count; -+ struct squashfs_dir_header_2 dirh; -+ struct squashfs_dir_entry_2 *dire; -+ int sorted = sblk->s_major == 2 && sblk->s_minor >= 1; -+ -+ TRACE("Entered squashfs_lookup_2 [%llx:%x]\n", next_block, next_offset); -+ -+ if (!(dire = kmalloc(sizeof(struct squashfs_dir_entry) + -+ SQUASHFS_NAME_LEN + 1, GFP_KERNEL))) { -+ ERROR("Failed to allocate squashfs_dir_entry\n"); -+ goto exit_loop; -+ } -+ -+ if (len > SQUASHFS_NAME_LEN) -+ goto exit_loop; -+ -+ length = get_dir_index_using_name(i->i_sb, &next_block, &next_offset, -+ SQUASHFS_I(i)->u.s2.directory_index_start, -+ SQUASHFS_I(i)->u.s2.directory_index_offset, -+ SQUASHFS_I(i)->u.s2.directory_index_count, name, -+ len); -+ -+ while (length < i_size_read(i)) { -+ /* read directory header */ -+ if (msblk->swap) { -+ struct squashfs_dir_header_2 sdirh; -+ if (!squashfs_get_cached_block(i->i_sb, (char *) &sdirh, -+ next_block, next_offset, sizeof(sdirh), -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(sdirh); -+ SQUASHFS_SWAP_DIR_HEADER_2(&dirh, &sdirh); -+ } else { -+ if (!squashfs_get_cached_block(i->i_sb, (char *) &dirh, -+ next_block, next_offset, sizeof(dirh), -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(dirh); -+ } -+ -+ dir_count = dirh.count + 1; -+ while (dir_count--) { -+ if (msblk->swap) { -+ struct squashfs_dir_entry_2 sdire; -+ if (!squashfs_get_cached_block(i->i_sb, (char *) -+ &sdire, next_block,next_offset, -+ sizeof(sdire), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(sdire); -+ SQUASHFS_SWAP_DIR_ENTRY_2(dire, &sdire); -+ } else { -+ if (!squashfs_get_cached_block(i->i_sb, (char *) -+ dire, next_block,next_offset, -+ sizeof(*dire), &next_block, -+ &next_offset)) -+ goto failed_read; -+ -+ length += sizeof(*dire); -+ } -+ -+ if (!squashfs_get_cached_block(i->i_sb, dire->name, -+ next_block, next_offset, dire->size + 1, -+ &next_block, &next_offset)) -+ goto failed_read; -+ -+ length += dire->size + 1; -+ -+ if (sorted && name[0] < dire->name[0]) -+ goto exit_loop; -+ -+ if ((len == dire->size + 1) && !strncmp(name, -+ dire->name, len)) { -+ squashfs_inode_t ino = -+ SQUASHFS_MKINODE(dirh.start_block, -+ dire->offset); -+ unsigned int inode_number = SQUASHFS_MK_VFS_INODE(dirh.start_block, -+ dire->offset); -+ -+ TRACE("calling squashfs_iget for directory " -+ "entry %s, inode %x:%x, %lld\n", name, -+ dirh.start_block, dire->offset, ino); -+ -+ inode = squashfs_iget(i->i_sb, ino, inode_number); -+ -+ goto exit_loop; -+ } -+ } -+ } -+ -+exit_loop: -+ kfree(dire); -+ d_add(dentry, inode); -+ return ERR_PTR(0); -+ -+failed_read: -+ ERROR("Unable to read directory block [%llx:%x]\n", next_block, -+ next_offset); -+ goto exit_loop; -+} -+ -+ -+int squashfs_2_0_supported(struct squashfs_sb_info *msblk) -+{ -+ struct squashfs_super_block *sblk = &msblk->sblk; -+ -+ msblk->read_inode = squashfs_read_inode_2; -+ msblk->read_fragment_index_table = read_fragment_index_table_2; -+ -+ sblk->bytes_used = sblk->bytes_used_2; -+ sblk->uid_start = sblk->uid_start_2; -+ sblk->guid_start = sblk->guid_start_2; -+ sblk->inode_table_start = sblk->inode_table_start_2; -+ sblk->directory_table_start = sblk->directory_table_start_2; -+ sblk->fragment_table_start = sblk->fragment_table_start_2; -+ -+ return 1; -+} ---- /dev/null -+++ linux-2.6.24-rc1/fs/squashfs/squashfs.h -@@ -0,0 +1,87 @@ -+/* -+ * Squashfs - a compressed read only filesystem for Linux -+ * -+ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007 -+ * Phillip Lougher -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version 2, -+ * or (at your option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -+ * -+ * squashfs.h -+ */ -+ -+#ifdef CONFIG_SQUASHFS_1_0_COMPATIBILITY -+#undef CONFIG_SQUASHFS_1_0_COMPATIBILITY -+#endif -+ -+#ifdef SQUASHFS_TRACE -+#define TRACE(s, args...) printk(KERN_NOTICE "SQUASHFS: "s, ## args) -+#else -+#define TRACE(s, args...) {} -+#endif -+ -+#define ERROR(s, args...) printk(KERN_ERR "SQUASHFS error: "s, ## args) -+ -+#define SERROR(s, args...) do { \ -+ if (!silent) \ -+ printk(KERN_ERR "SQUASHFS error: "s, ## args);\ -+ } while(0) -+ -+#define WARNING(s, args...) printk(KERN_WARNING "SQUASHFS: "s, ## args) -+ -+static inline struct squashfs_inode_info *SQUASHFS_I(struct inode *inode) -+{ -+ return list_entry(inode, struct squashfs_inode_info, vfs_inode); -+} -+ -+#if defined(CONFIG_SQUASHFS_1_0_COMPATIBILITY ) || defined(CONFIG_SQUASHFS_2_0_COMPATIBILITY) -+#define SQSH_EXTERN -+extern unsigned int squashfs_read_data(struct super_block *s, char *buffer, -+ long long index, unsigned int length, -+ long long *next_index, int srclength); -+extern int squashfs_get_cached_block(struct super_block *s, char *buffer, -+ long long block, unsigned int offset, -+ int length, long long *next_block, -+ unsigned int *next_offset); -+extern void release_cached_fragment(struct squashfs_sb_info *msblk, struct -+ squashfs_fragment_cache *fragment); -+extern struct squashfs_fragment_cache *get_cached_fragment(struct super_block -+ *s, long long start_block, -+ int length); -+extern struct inode *squashfs_iget(struct super_block *s, squashfs_inode_t inode, unsigned int inode_number); -+extern const struct address_space_operations squashfs_symlink_aops; -+extern const struct address_space_operations squashfs_aops; -+extern const struct address_space_operations squashfs_aops_4K; -+extern struct inode_operations squashfs_dir_inode_ops; -+#else -+#define SQSH_EXTERN static -+#endif -+ -+#ifdef CONFIG_SQUASHFS_1_0_COMPATIBILITY -+extern int squashfs_1_0_supported(struct squashfs_sb_info *msblk); -+#else -+static inline int squashfs_1_0_supported(struct squashfs_sb_info *msblk) -+{ -+ return 0; -+} -+#endif -+ -+#ifdef CONFIG_SQUASHFS_2_0_COMPATIBILITY -+extern int squashfs_2_0_supported(struct squashfs_sb_info *msblk); -+#else -+static inline int squashfs_2_0_supported(struct squashfs_sb_info *msblk) -+{ -+ return 0; -+} -+#endif ---- /dev/null -+++ linux-2.6.24-rc1/include/linux/squashfs_fs.h -@@ -0,0 +1,934 @@ -+#ifndef SQUASHFS_FS -+#define SQUASHFS_FS -+ -+/* -+ * Squashfs -+ * -+ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007 -+ * Phillip Lougher -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version 2, -+ * or (at your option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -+ * -+ * squashfs_fs.h -+ */ -+ -+#ifndef CONFIG_SQUASHFS_2_0_COMPATIBILITY -+#define CONFIG_SQUASHFS_2_0_COMPATIBILITY -+#endif -+ -+#ifdef CONFIG_SQUASHFS_VMALLOC -+#define SQUASHFS_ALLOC(a) vmalloc(a) -+#define SQUASHFS_FREE(a) vfree(a) -+#else -+#define SQUASHFS_ALLOC(a) kmalloc(a, GFP_KERNEL) -+#define SQUASHFS_FREE(a) kfree(a) -+#endif -+#define SQUASHFS_CACHED_FRAGMENTS CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE -+#define SQUASHFS_MAJOR 3 -+#define SQUASHFS_MINOR 0 -+#define SQUASHFS_MAGIC 0x73717368 -+#define SQUASHFS_MAGIC_SWAP 0x68737173 -+#define SQUASHFS_START 0 -+ -+/* size of metadata (inode and directory) blocks */ -+#define SQUASHFS_METADATA_SIZE 8192 -+#define SQUASHFS_METADATA_LOG 13 -+ -+/* default size of data blocks */ -+#define SQUASHFS_FILE_SIZE 65536 -+#define SQUASHFS_FILE_LOG 16 -+ -+#define SQUASHFS_FILE_MAX_SIZE 65536 -+ -+/* Max number of uids and gids */ -+#define SQUASHFS_UIDS 256 -+#define SQUASHFS_GUIDS 255 -+ -+/* Max length of filename (not 255) */ -+#define SQUASHFS_NAME_LEN 256 -+ -+#define SQUASHFS_INVALID ((long long) 0xffffffffffff) -+#define SQUASHFS_INVALID_FRAG ((unsigned int) 0xffffffff) -+#define SQUASHFS_INVALID_BLK ((long long) -1) -+#define SQUASHFS_USED_BLK ((long long) -2) -+ -+/* Filesystem flags */ -+#define SQUASHFS_NOI 0 -+#define SQUASHFS_NOD 1 -+#define SQUASHFS_CHECK 2 -+#define SQUASHFS_NOF 3 -+#define SQUASHFS_NO_FRAG 4 -+#define SQUASHFS_ALWAYS_FRAG 5 -+#define SQUASHFS_DUPLICATE 6 -+#define SQUASHFS_EXPORT 7 -+ -+#define SQUASHFS_BIT(flag, bit) ((flag >> bit) & 1) -+ -+#define SQUASHFS_UNCOMPRESSED_INODES(flags) SQUASHFS_BIT(flags, \ -+ SQUASHFS_NOI) -+ -+#define SQUASHFS_UNCOMPRESSED_DATA(flags) SQUASHFS_BIT(flags, \ -+ SQUASHFS_NOD) -+ -+#define SQUASHFS_UNCOMPRESSED_FRAGMENTS(flags) SQUASHFS_BIT(flags, \ -+ SQUASHFS_NOF) -+ -+#define SQUASHFS_NO_FRAGMENTS(flags) SQUASHFS_BIT(flags, \ -+ SQUASHFS_NO_FRAG) -+ -+#define SQUASHFS_ALWAYS_FRAGMENTS(flags) SQUASHFS_BIT(flags, \ -+ SQUASHFS_ALWAYS_FRAG) -+ -+#define SQUASHFS_DUPLICATES(flags) SQUASHFS_BIT(flags, \ -+ SQUASHFS_DUPLICATE) -+ -+#define SQUASHFS_EXPORTABLE(flags) SQUASHFS_BIT(flags, \ -+ SQUASHFS_EXPORT) -+ -+#define SQUASHFS_CHECK_DATA(flags) SQUASHFS_BIT(flags, \ -+ SQUASHFS_CHECK) -+ -+#define SQUASHFS_MKFLAGS(noi, nod, check_data, nof, no_frag, always_frag, \ -+ duplicate_checking, exortable) (noi | (nod << 1) | (check_data << 2) \ -+ | (nof << 3) | (no_frag << 4) | (always_frag << 5) | \ -+ (duplicate_checking << 6) | (exportable << 7)) -+ -+/* Max number of types and file types */ -+#define SQUASHFS_DIR_TYPE 1 -+#define SQUASHFS_FILE_TYPE 2 -+#define SQUASHFS_SYMLINK_TYPE 3 -+#define SQUASHFS_BLKDEV_TYPE 4 -+#define SQUASHFS_CHRDEV_TYPE 5 -+#define SQUASHFS_FIFO_TYPE 6 -+#define SQUASHFS_SOCKET_TYPE 7 -+#define SQUASHFS_LDIR_TYPE 8 -+#define SQUASHFS_LREG_TYPE 9 -+ -+/* 1.0 filesystem type definitions */ -+#define SQUASHFS_TYPES 5 -+#define SQUASHFS_IPC_TYPE 0 -+ -+/* Flag whether block is compressed or uncompressed, bit is set if block is -+ * uncompressed */ -+#define SQUASHFS_COMPRESSED_BIT (1 << 15) -+ -+#define SQUASHFS_COMPRESSED_SIZE(B) (((B) & ~SQUASHFS_COMPRESSED_BIT) ? \ -+ (B) & ~SQUASHFS_COMPRESSED_BIT : SQUASHFS_COMPRESSED_BIT) -+ -+#define SQUASHFS_COMPRESSED(B) (!((B) & SQUASHFS_COMPRESSED_BIT)) -+ -+#define SQUASHFS_COMPRESSED_BIT_BLOCK (1 << 24) -+ -+#define SQUASHFS_COMPRESSED_SIZE_BLOCK(B) (((B) & \ -+ ~SQUASHFS_COMPRESSED_BIT_BLOCK) ? (B) & \ -+ ~SQUASHFS_COMPRESSED_BIT_BLOCK : SQUASHFS_COMPRESSED_BIT_BLOCK) -+ -+#define SQUASHFS_COMPRESSED_BLOCK(B) (!((B) & SQUASHFS_COMPRESSED_BIT_BLOCK)) -+ -+/* -+ * Inode number ops. Inodes consist of a compressed block number, and an -+ * uncompressed offset within that block -+ */ -+#define SQUASHFS_INODE_BLK(a) ((unsigned int) ((a) >> 16)) -+ -+#define SQUASHFS_INODE_OFFSET(a) ((unsigned int) ((a) & 0xffff)) -+ -+#define SQUASHFS_MKINODE(A, B) ((squashfs_inode_t)(((squashfs_inode_t) (A)\ -+ << 16) + (B))) -+ -+/* Compute 32 bit VFS inode number from squashfs inode number */ -+#define SQUASHFS_MK_VFS_INODE(a, b) ((unsigned int) (((a) << 8) + \ -+ ((b) >> 2) + 1)) -+/* XXX */ -+ -+/* Translate between VFS mode and squashfs mode */ -+#define SQUASHFS_MODE(a) ((a) & 0xfff) -+ -+/* fragment and fragment table defines */ -+#define SQUASHFS_FRAGMENT_BYTES(A) ((A) * sizeof(struct squashfs_fragment_entry)) -+ -+#define SQUASHFS_FRAGMENT_INDEX(A) (SQUASHFS_FRAGMENT_BYTES(A) / \ -+ SQUASHFS_METADATA_SIZE) -+ -+#define SQUASHFS_FRAGMENT_INDEX_OFFSET(A) (SQUASHFS_FRAGMENT_BYTES(A) % \ -+ SQUASHFS_METADATA_SIZE) -+ -+#define SQUASHFS_FRAGMENT_INDEXES(A) ((SQUASHFS_FRAGMENT_BYTES(A) + \ -+ SQUASHFS_METADATA_SIZE - 1) / \ -+ SQUASHFS_METADATA_SIZE) -+ -+#define SQUASHFS_FRAGMENT_INDEX_BYTES(A) (SQUASHFS_FRAGMENT_INDEXES(A) *\ -+ sizeof(long long)) -+ -+/* inode lookup table defines */ -+#define SQUASHFS_LOOKUP_BYTES(A) ((A) * sizeof(squashfs_inode_t)) -+ -+#define SQUASHFS_LOOKUP_BLOCK(A) (SQUASHFS_LOOKUP_BYTES(A) / \ -+ SQUASHFS_METADATA_SIZE) -+ -+#define SQUASHFS_LOOKUP_BLOCK_OFFSET(A) (SQUASHFS_LOOKUP_BYTES(A) % \ -+ SQUASHFS_METADATA_SIZE) -+ -+#define SQUASHFS_LOOKUP_BLOCKS(A) ((SQUASHFS_LOOKUP_BYTES(A) + \ -+ SQUASHFS_METADATA_SIZE - 1) / \ -+ SQUASHFS_METADATA_SIZE) -+ -+#define SQUASHFS_LOOKUP_BLOCK_BYTES(A) (SQUASHFS_LOOKUP_BLOCKS(A) *\ -+ sizeof(long long)) -+ -+/* cached data constants for filesystem */ -+#define SQUASHFS_CACHED_BLKS 8 -+ -+#define SQUASHFS_MAX_FILE_SIZE_LOG 64 -+ -+#define SQUASHFS_MAX_FILE_SIZE ((long long) 1 << \ -+ (SQUASHFS_MAX_FILE_SIZE_LOG - 2)) -+ -+#define SQUASHFS_MARKER_BYTE 0xff -+ -+/* meta index cache */ -+#define SQUASHFS_META_INDEXES (SQUASHFS_METADATA_SIZE / sizeof(unsigned int)) -+#define SQUASHFS_META_ENTRIES 31 -+#define SQUASHFS_META_NUMBER 8 -+#define SQUASHFS_SLOTS 4 -+ -+struct meta_entry { -+ long long data_block; -+ unsigned int index_block; -+ unsigned short offset; -+ unsigned short pad; -+}; -+ -+struct meta_index { -+ unsigned int inode_number; -+ unsigned int offset; -+ unsigned short entries; -+ unsigned short skip; -+ unsigned short locked; -+ unsigned short pad; -+ struct meta_entry meta_entry[SQUASHFS_META_ENTRIES]; -+}; -+ -+ -+/* -+ * definitions for structures on disk -+ */ -+ -+typedef long long squashfs_block_t; -+typedef long long squashfs_inode_t; -+ -+struct squashfs_super_block { -+ unsigned int s_magic; -+ unsigned int inodes; -+ unsigned int bytes_used_2; -+ unsigned int uid_start_2; -+ unsigned int guid_start_2; -+ unsigned int inode_table_start_2; -+ unsigned int directory_table_start_2; -+ unsigned int s_major:16; -+ unsigned int s_minor:16; -+ unsigned int block_size_1:16; -+ unsigned int block_log:16; -+ unsigned int flags:8; -+ unsigned int no_uids:8; -+ unsigned int no_guids:8; -+ unsigned int mkfs_time /* time of filesystem creation */; -+ squashfs_inode_t root_inode; -+ unsigned int block_size; -+ unsigned int fragments; -+ unsigned int fragment_table_start_2; -+ long long bytes_used; -+ long long uid_start; -+ long long guid_start; -+ long long inode_table_start; -+ long long directory_table_start; -+ long long fragment_table_start; -+ long long lookup_table_start; -+} __attribute__ ((packed)); -+ -+struct squashfs_dir_index { -+ unsigned int index; -+ unsigned int start_block; -+ unsigned char size; -+ unsigned char name[0]; -+} __attribute__ ((packed)); -+ -+#define SQUASHFS_BASE_INODE_HEADER \ -+ unsigned int inode_type:4; \ -+ unsigned int mode:12; \ -+ unsigned int uid:8; \ -+ unsigned int guid:8; \ -+ unsigned int mtime; \ -+ unsigned int inode_number; -+ -+struct squashfs_base_inode_header { -+ SQUASHFS_BASE_INODE_HEADER; -+} __attribute__ ((packed)); -+ -+struct squashfs_ipc_inode_header { -+ SQUASHFS_BASE_INODE_HEADER; -+ unsigned int nlink; -+} __attribute__ ((packed)); -+ -+struct squashfs_dev_inode_header { -+ SQUASHFS_BASE_INODE_HEADER; -+ unsigned int nlink; -+ unsigned short rdev; -+} __attribute__ ((packed)); -+ -+struct squashfs_symlink_inode_header { -+ SQUASHFS_BASE_INODE_HEADER; -+ unsigned int nlink; -+ unsigned short symlink_size; -+ char symlink[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_reg_inode_header { -+ SQUASHFS_BASE_INODE_HEADER; -+ squashfs_block_t start_block; -+ unsigned int fragment; -+ unsigned int offset; -+ unsigned int file_size; -+ unsigned short block_list[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_lreg_inode_header { -+ SQUASHFS_BASE_INODE_HEADER; -+ unsigned int nlink; -+ squashfs_block_t start_block; -+ unsigned int fragment; -+ unsigned int offset; -+ long long file_size; -+ unsigned short block_list[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_dir_inode_header { -+ SQUASHFS_BASE_INODE_HEADER; -+ unsigned int nlink; -+ unsigned int file_size:19; -+ unsigned int offset:13; -+ unsigned int start_block; -+ unsigned int parent_inode; -+} __attribute__ ((packed)); -+ -+struct squashfs_ldir_inode_header { -+ SQUASHFS_BASE_INODE_HEADER; -+ unsigned int nlink; -+ unsigned int file_size:27; -+ unsigned int offset:13; -+ unsigned int start_block; -+ unsigned int i_count:16; -+ unsigned int parent_inode; -+ struct squashfs_dir_index index[0]; -+} __attribute__ ((packed)); -+ -+union squashfs_inode_header { -+ struct squashfs_base_inode_header base; -+ struct squashfs_dev_inode_header dev; -+ struct squashfs_symlink_inode_header symlink; -+ struct squashfs_reg_inode_header reg; -+ struct squashfs_lreg_inode_header lreg; -+ struct squashfs_dir_inode_header dir; -+ struct squashfs_ldir_inode_header ldir; -+ struct squashfs_ipc_inode_header ipc; -+}; -+ -+struct squashfs_dir_entry { -+ unsigned int offset:13; -+ unsigned int type:3; -+ unsigned int size:8; -+ int inode_number:16; -+ char name[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_dir_header { -+ unsigned int count:8; -+ unsigned int start_block; -+ unsigned int inode_number; -+} __attribute__ ((packed)); -+ -+struct squashfs_fragment_entry { -+ long long start_block; -+ unsigned int size; -+ unsigned int pending; -+} __attribute__ ((packed)); -+ -+extern int squashfs_uncompress_block(void *d, int dstlen, void *s, int srclen); -+extern int squashfs_uncompress_init(void); -+extern int squashfs_uncompress_exit(void); -+ -+/* -+ * macros to convert each packed bitfield structure from little endian to big -+ * endian and vice versa. These are needed when creating or using a filesystem -+ * on a machine with different byte ordering to the target architecture. -+ * -+ */ -+ -+#define SQUASHFS_SWAP_START \ -+ int bits;\ -+ int b_pos;\ -+ unsigned long long val;\ -+ unsigned char *s;\ -+ unsigned char *d; -+ -+#define SQUASHFS_SWAP_SUPER_BLOCK(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_super_block));\ -+ SQUASHFS_SWAP((s)->s_magic, d, 0, 32);\ -+ SQUASHFS_SWAP((s)->inodes, d, 32, 32);\ -+ SQUASHFS_SWAP((s)->bytes_used_2, d, 64, 32);\ -+ SQUASHFS_SWAP((s)->uid_start_2, d, 96, 32);\ -+ SQUASHFS_SWAP((s)->guid_start_2, d, 128, 32);\ -+ SQUASHFS_SWAP((s)->inode_table_start_2, d, 160, 32);\ -+ SQUASHFS_SWAP((s)->directory_table_start_2, d, 192, 32);\ -+ SQUASHFS_SWAP((s)->s_major, d, 224, 16);\ -+ SQUASHFS_SWAP((s)->s_minor, d, 240, 16);\ -+ SQUASHFS_SWAP((s)->block_size_1, d, 256, 16);\ -+ SQUASHFS_SWAP((s)->block_log, d, 272, 16);\ -+ SQUASHFS_SWAP((s)->flags, d, 288, 8);\ -+ SQUASHFS_SWAP((s)->no_uids, d, 296, 8);\ -+ SQUASHFS_SWAP((s)->no_guids, d, 304, 8);\ -+ SQUASHFS_SWAP((s)->mkfs_time, d, 312, 32);\ -+ SQUASHFS_SWAP((s)->root_inode, d, 344, 64);\ -+ SQUASHFS_SWAP((s)->block_size, d, 408, 32);\ -+ SQUASHFS_SWAP((s)->fragments, d, 440, 32);\ -+ SQUASHFS_SWAP((s)->fragment_table_start_2, d, 472, 32);\ -+ SQUASHFS_SWAP((s)->bytes_used, d, 504, 64);\ -+ SQUASHFS_SWAP((s)->uid_start, d, 568, 64);\ -+ SQUASHFS_SWAP((s)->guid_start, d, 632, 64);\ -+ SQUASHFS_SWAP((s)->inode_table_start, d, 696, 64);\ -+ SQUASHFS_SWAP((s)->directory_table_start, d, 760, 64);\ -+ SQUASHFS_SWAP((s)->fragment_table_start, d, 824, 64);\ -+ SQUASHFS_SWAP((s)->lookup_table_start, d, 888, 64);\ -+} -+ -+#define SQUASHFS_SWAP_BASE_INODE_CORE(s, d, n)\ -+ SQUASHFS_MEMSET(s, d, n);\ -+ SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\ -+ SQUASHFS_SWAP((s)->mode, d, 4, 12);\ -+ SQUASHFS_SWAP((s)->uid, d, 16, 8);\ -+ SQUASHFS_SWAP((s)->guid, d, 24, 8);\ -+ SQUASHFS_SWAP((s)->mtime, d, 32, 32);\ -+ SQUASHFS_SWAP((s)->inode_number, d, 64, 32); -+ -+#define SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, n) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, n)\ -+} -+ -+#define SQUASHFS_SWAP_IPC_INODE_HEADER(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ -+ sizeof(struct squashfs_ipc_inode_header))\ -+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ -+} -+ -+#define SQUASHFS_SWAP_DEV_INODE_HEADER(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ -+ sizeof(struct squashfs_dev_inode_header)); \ -+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ -+ SQUASHFS_SWAP((s)->rdev, d, 128, 16);\ -+} -+ -+#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ -+ sizeof(struct squashfs_symlink_inode_header));\ -+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ -+ SQUASHFS_SWAP((s)->symlink_size, d, 128, 16);\ -+} -+ -+#define SQUASHFS_SWAP_REG_INODE_HEADER(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ -+ sizeof(struct squashfs_reg_inode_header));\ -+ SQUASHFS_SWAP((s)->start_block, d, 96, 64);\ -+ SQUASHFS_SWAP((s)->fragment, d, 160, 32);\ -+ SQUASHFS_SWAP((s)->offset, d, 192, 32);\ -+ SQUASHFS_SWAP((s)->file_size, d, 224, 32);\ -+} -+ -+#define SQUASHFS_SWAP_LREG_INODE_HEADER(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ -+ sizeof(struct squashfs_lreg_inode_header));\ -+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ -+ SQUASHFS_SWAP((s)->start_block, d, 128, 64);\ -+ SQUASHFS_SWAP((s)->fragment, d, 192, 32);\ -+ SQUASHFS_SWAP((s)->offset, d, 224, 32);\ -+ SQUASHFS_SWAP((s)->file_size, d, 256, 64);\ -+} -+ -+#define SQUASHFS_SWAP_DIR_INODE_HEADER(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ -+ sizeof(struct squashfs_dir_inode_header));\ -+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ -+ SQUASHFS_SWAP((s)->file_size, d, 128, 19);\ -+ SQUASHFS_SWAP((s)->offset, d, 147, 13);\ -+ SQUASHFS_SWAP((s)->start_block, d, 160, 32);\ -+ SQUASHFS_SWAP((s)->parent_inode, d, 192, 32);\ -+} -+ -+#define SQUASHFS_SWAP_LDIR_INODE_HEADER(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ -+ sizeof(struct squashfs_ldir_inode_header));\ -+ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ -+ SQUASHFS_SWAP((s)->file_size, d, 128, 27);\ -+ SQUASHFS_SWAP((s)->offset, d, 155, 13);\ -+ SQUASHFS_SWAP((s)->start_block, d, 168, 32);\ -+ SQUASHFS_SWAP((s)->i_count, d, 200, 16);\ -+ SQUASHFS_SWAP((s)->parent_inode, d, 216, 32);\ -+} -+ -+#define SQUASHFS_SWAP_DIR_INDEX(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_index));\ -+ SQUASHFS_SWAP((s)->index, d, 0, 32);\ -+ SQUASHFS_SWAP((s)->start_block, d, 32, 32);\ -+ SQUASHFS_SWAP((s)->size, d, 64, 8);\ -+} -+ -+#define SQUASHFS_SWAP_DIR_HEADER(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_header));\ -+ SQUASHFS_SWAP((s)->count, d, 0, 8);\ -+ SQUASHFS_SWAP((s)->start_block, d, 8, 32);\ -+ SQUASHFS_SWAP((s)->inode_number, d, 40, 32);\ -+} -+ -+#define SQUASHFS_SWAP_DIR_ENTRY(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_entry));\ -+ SQUASHFS_SWAP((s)->offset, d, 0, 13);\ -+ SQUASHFS_SWAP((s)->type, d, 13, 3);\ -+ SQUASHFS_SWAP((s)->size, d, 16, 8);\ -+ SQUASHFS_SWAP((s)->inode_number, d, 24, 16);\ -+} -+ -+#define SQUASHFS_SWAP_FRAGMENT_ENTRY(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_fragment_entry));\ -+ SQUASHFS_SWAP((s)->start_block, d, 0, 64);\ -+ SQUASHFS_SWAP((s)->size, d, 64, 32);\ -+} -+ -+#define SQUASHFS_SWAP_INODE_T(s, d) SQUASHFS_SWAP_LONG_LONGS(s, d, 1) -+ -+#define SQUASHFS_SWAP_SHORTS(s, d, n) {\ -+ int entry;\ -+ int bit_position;\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, n * 2);\ -+ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \ -+ 16)\ -+ SQUASHFS_SWAP(s[entry], d, bit_position, 16);\ -+} -+ -+#define SQUASHFS_SWAP_INTS(s, d, n) {\ -+ int entry;\ -+ int bit_position;\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, n * 4);\ -+ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \ -+ 32)\ -+ SQUASHFS_SWAP(s[entry], d, bit_position, 32);\ -+} -+ -+#define SQUASHFS_SWAP_LONG_LONGS(s, d, n) {\ -+ int entry;\ -+ int bit_position;\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, n * 8);\ -+ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \ -+ 64)\ -+ SQUASHFS_SWAP(s[entry], d, bit_position, 64);\ -+} -+ -+#define SQUASHFS_SWAP_DATA(s, d, n, bits) {\ -+ int entry;\ -+ int bit_position;\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, n * bits / 8);\ -+ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \ -+ bits)\ -+ SQUASHFS_SWAP(s[entry], d, bit_position, bits);\ -+} -+ -+#define SQUASHFS_SWAP_FRAGMENT_INDEXES(s, d, n) SQUASHFS_SWAP_LONG_LONGS(s, d, n) -+#define SQUASHFS_SWAP_LOOKUP_BLOCKS(s, d, n) SQUASHFS_SWAP_LONG_LONGS(s, d, n) -+ -+#ifdef CONFIG_SQUASHFS_1_0_COMPATIBILITY -+ -+struct squashfs_base_inode_header_1 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:4; /* index into uid table */ -+ unsigned int guid:4; /* index into guid table */ -+} __attribute__ ((packed)); -+ -+struct squashfs_ipc_inode_header_1 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:4; /* index into uid table */ -+ unsigned int guid:4; /* index into guid table */ -+ unsigned int type:4; -+ unsigned int offset:4; -+} __attribute__ ((packed)); -+ -+struct squashfs_dev_inode_header_1 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:4; /* index into uid table */ -+ unsigned int guid:4; /* index into guid table */ -+ unsigned short rdev; -+} __attribute__ ((packed)); -+ -+struct squashfs_symlink_inode_header_1 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:4; /* index into uid table */ -+ unsigned int guid:4; /* index into guid table */ -+ unsigned short symlink_size; -+ char symlink[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_reg_inode_header_1 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:4; /* index into uid table */ -+ unsigned int guid:4; /* index into guid table */ -+ unsigned int mtime; -+ unsigned int start_block; -+ unsigned int file_size:32; -+ unsigned short block_list[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_dir_inode_header_1 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:4; /* index into uid table */ -+ unsigned int guid:4; /* index into guid table */ -+ unsigned int file_size:19; -+ unsigned int offset:13; -+ unsigned int mtime; -+ unsigned int start_block:24; -+} __attribute__ ((packed)); -+ -+#define SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, n) \ -+ SQUASHFS_MEMSET(s, d, n);\ -+ SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\ -+ SQUASHFS_SWAP((s)->mode, d, 4, 12);\ -+ SQUASHFS_SWAP((s)->uid, d, 16, 4);\ -+ SQUASHFS_SWAP((s)->guid, d, 20, 4); -+ -+#define SQUASHFS_SWAP_BASE_INODE_HEADER_1(s, d, n) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, n)\ -+} -+ -+#define SQUASHFS_SWAP_IPC_INODE_HEADER_1(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \ -+ sizeof(struct squashfs_ipc_inode_header_1));\ -+ SQUASHFS_SWAP((s)->type, d, 24, 4);\ -+ SQUASHFS_SWAP((s)->offset, d, 28, 4);\ -+} -+ -+#define SQUASHFS_SWAP_DEV_INODE_HEADER_1(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \ -+ sizeof(struct squashfs_dev_inode_header_1));\ -+ SQUASHFS_SWAP((s)->rdev, d, 24, 16);\ -+} -+ -+#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER_1(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \ -+ sizeof(struct squashfs_symlink_inode_header_1));\ -+ SQUASHFS_SWAP((s)->symlink_size, d, 24, 16);\ -+} -+ -+#define SQUASHFS_SWAP_REG_INODE_HEADER_1(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \ -+ sizeof(struct squashfs_reg_inode_header_1));\ -+ SQUASHFS_SWAP((s)->mtime, d, 24, 32);\ -+ SQUASHFS_SWAP((s)->start_block, d, 56, 32);\ -+ SQUASHFS_SWAP((s)->file_size, d, 88, 32);\ -+} -+ -+#define SQUASHFS_SWAP_DIR_INODE_HEADER_1(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \ -+ sizeof(struct squashfs_dir_inode_header_1));\ -+ SQUASHFS_SWAP((s)->file_size, d, 24, 19);\ -+ SQUASHFS_SWAP((s)->offset, d, 43, 13);\ -+ SQUASHFS_SWAP((s)->mtime, d, 56, 32);\ -+ SQUASHFS_SWAP((s)->start_block, d, 88, 24);\ -+} -+ -+#endif -+ -+#ifdef CONFIG_SQUASHFS_2_0_COMPATIBILITY -+ -+struct squashfs_dir_index_2 { -+ unsigned int index:27; -+ unsigned int start_block:29; -+ unsigned char size; -+ unsigned char name[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_base_inode_header_2 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:8; /* index into uid table */ -+ unsigned int guid:8; /* index into guid table */ -+} __attribute__ ((packed)); -+ -+struct squashfs_ipc_inode_header_2 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:8; /* index into uid table */ -+ unsigned int guid:8; /* index into guid table */ -+} __attribute__ ((packed)); -+ -+struct squashfs_dev_inode_header_2 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:8; /* index into uid table */ -+ unsigned int guid:8; /* index into guid table */ -+ unsigned short rdev; -+} __attribute__ ((packed)); -+ -+struct squashfs_symlink_inode_header_2 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:8; /* index into uid table */ -+ unsigned int guid:8; /* index into guid table */ -+ unsigned short symlink_size; -+ char symlink[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_reg_inode_header_2 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:8; /* index into uid table */ -+ unsigned int guid:8; /* index into guid table */ -+ unsigned int mtime; -+ unsigned int start_block; -+ unsigned int fragment; -+ unsigned int offset; -+ unsigned int file_size:32; -+ unsigned short block_list[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_dir_inode_header_2 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:8; /* index into uid table */ -+ unsigned int guid:8; /* index into guid table */ -+ unsigned int file_size:19; -+ unsigned int offset:13; -+ unsigned int mtime; -+ unsigned int start_block:24; -+} __attribute__ ((packed)); -+ -+struct squashfs_ldir_inode_header_2 { -+ unsigned int inode_type:4; -+ unsigned int mode:12; /* protection */ -+ unsigned int uid:8; /* index into uid table */ -+ unsigned int guid:8; /* index into guid table */ -+ unsigned int file_size:27; -+ unsigned int offset:13; -+ unsigned int mtime; -+ unsigned int start_block:24; -+ unsigned int i_count:16; -+ struct squashfs_dir_index_2 index[0]; -+} __attribute__ ((packed)); -+ -+union squashfs_inode_header_2 { -+ struct squashfs_base_inode_header_2 base; -+ struct squashfs_dev_inode_header_2 dev; -+ struct squashfs_symlink_inode_header_2 symlink; -+ struct squashfs_reg_inode_header_2 reg; -+ struct squashfs_dir_inode_header_2 dir; -+ struct squashfs_ldir_inode_header_2 ldir; -+ struct squashfs_ipc_inode_header_2 ipc; -+}; -+ -+struct squashfs_dir_header_2 { -+ unsigned int count:8; -+ unsigned int start_block:24; -+} __attribute__ ((packed)); -+ -+struct squashfs_dir_entry_2 { -+ unsigned int offset:13; -+ unsigned int type:3; -+ unsigned int size:8; -+ char name[0]; -+} __attribute__ ((packed)); -+ -+struct squashfs_fragment_entry_2 { -+ unsigned int start_block; -+ unsigned int size; -+} __attribute__ ((packed)); -+ -+#define SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, n)\ -+ SQUASHFS_MEMSET(s, d, n);\ -+ SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\ -+ SQUASHFS_SWAP((s)->mode, d, 4, 12);\ -+ SQUASHFS_SWAP((s)->uid, d, 16, 8);\ -+ SQUASHFS_SWAP((s)->guid, d, 24, 8);\ -+ -+#define SQUASHFS_SWAP_BASE_INODE_HEADER_2(s, d, n) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, n)\ -+} -+ -+#define SQUASHFS_SWAP_IPC_INODE_HEADER_2(s, d) \ -+ SQUASHFS_SWAP_BASE_INODE_HEADER_2(s, d, sizeof(struct squashfs_ipc_inode_header_2)) -+ -+#define SQUASHFS_SWAP_DEV_INODE_HEADER_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \ -+ sizeof(struct squashfs_dev_inode_header_2)); \ -+ SQUASHFS_SWAP((s)->rdev, d, 32, 16);\ -+} -+ -+#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \ -+ sizeof(struct squashfs_symlink_inode_header_2));\ -+ SQUASHFS_SWAP((s)->symlink_size, d, 32, 16);\ -+} -+ -+#define SQUASHFS_SWAP_REG_INODE_HEADER_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \ -+ sizeof(struct squashfs_reg_inode_header_2));\ -+ SQUASHFS_SWAP((s)->mtime, d, 32, 32);\ -+ SQUASHFS_SWAP((s)->start_block, d, 64, 32);\ -+ SQUASHFS_SWAP((s)->fragment, d, 96, 32);\ -+ SQUASHFS_SWAP((s)->offset, d, 128, 32);\ -+ SQUASHFS_SWAP((s)->file_size, d, 160, 32);\ -+} -+ -+#define SQUASHFS_SWAP_DIR_INODE_HEADER_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \ -+ sizeof(struct squashfs_dir_inode_header_2));\ -+ SQUASHFS_SWAP((s)->file_size, d, 32, 19);\ -+ SQUASHFS_SWAP((s)->offset, d, 51, 13);\ -+ SQUASHFS_SWAP((s)->mtime, d, 64, 32);\ -+ SQUASHFS_SWAP((s)->start_block, d, 96, 24);\ -+} -+ -+#define SQUASHFS_SWAP_LDIR_INODE_HEADER_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \ -+ sizeof(struct squashfs_ldir_inode_header_2));\ -+ SQUASHFS_SWAP((s)->file_size, d, 32, 27);\ -+ SQUASHFS_SWAP((s)->offset, d, 59, 13);\ -+ SQUASHFS_SWAP((s)->mtime, d, 72, 32);\ -+ SQUASHFS_SWAP((s)->start_block, d, 104, 24);\ -+ SQUASHFS_SWAP((s)->i_count, d, 128, 16);\ -+} -+ -+#define SQUASHFS_SWAP_DIR_INDEX_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_index_2));\ -+ SQUASHFS_SWAP((s)->index, d, 0, 27);\ -+ SQUASHFS_SWAP((s)->start_block, d, 27, 29);\ -+ SQUASHFS_SWAP((s)->size, d, 56, 8);\ -+} -+#define SQUASHFS_SWAP_DIR_HEADER_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_header_2));\ -+ SQUASHFS_SWAP((s)->count, d, 0, 8);\ -+ SQUASHFS_SWAP((s)->start_block, d, 8, 24);\ -+} -+ -+#define SQUASHFS_SWAP_DIR_ENTRY_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_entry_2));\ -+ SQUASHFS_SWAP((s)->offset, d, 0, 13);\ -+ SQUASHFS_SWAP((s)->type, d, 13, 3);\ -+ SQUASHFS_SWAP((s)->size, d, 16, 8);\ -+} -+ -+#define SQUASHFS_SWAP_FRAGMENT_ENTRY_2(s, d) {\ -+ SQUASHFS_SWAP_START\ -+ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_fragment_entry_2));\ -+ SQUASHFS_SWAP((s)->start_block, d, 0, 32);\ -+ SQUASHFS_SWAP((s)->size, d, 32, 32);\ -+} -+ -+#define SQUASHFS_SWAP_FRAGMENT_INDEXES_2(s, d, n) SQUASHFS_SWAP_INTS(s, d, n) -+ -+/* fragment and fragment table defines */ -+#define SQUASHFS_FRAGMENT_BYTES_2(A) (A * sizeof(struct squashfs_fragment_entry_2)) -+ -+#define SQUASHFS_FRAGMENT_INDEX_2(A) (SQUASHFS_FRAGMENT_BYTES_2(A) / \ -+ SQUASHFS_METADATA_SIZE) -+ -+#define SQUASHFS_FRAGMENT_INDEX_OFFSET_2(A) (SQUASHFS_FRAGMENT_BYTES_2(A) % \ -+ SQUASHFS_METADATA_SIZE) -+ -+#define SQUASHFS_FRAGMENT_INDEXES_2(A) ((SQUASHFS_FRAGMENT_BYTES_2(A) + \ -+ SQUASHFS_METADATA_SIZE - 1) / \ -+ SQUASHFS_METADATA_SIZE) -+ -+#define SQUASHFS_FRAGMENT_INDEX_BYTES_2(A) (SQUASHFS_FRAGMENT_INDEXES_2(A) *\ -+ sizeof(int)) -+ -+#endif -+ -+#ifdef __KERNEL__ -+ -+/* -+ * macros used to swap each structure entry, taking into account -+ * bitfields and different bitfield placing conventions on differing -+ * architectures -+ */ -+ -+#include -+ -+#ifdef __BIG_ENDIAN -+ /* convert from little endian to big endian */ -+#define SQUASHFS_SWAP(value, p, pos, tbits) _SQUASHFS_SWAP(value, p, pos, \ -+ tbits, b_pos) -+#else -+ /* convert from big endian to little endian */ -+#define SQUASHFS_SWAP(value, p, pos, tbits) _SQUASHFS_SWAP(value, p, pos, \ -+ tbits, 64 - tbits - b_pos) -+#endif -+ -+#define _SQUASHFS_SWAP(value, p, pos, tbits, SHIFT) {\ -+ b_pos = pos % 8;\ -+ val = 0;\ -+ s = (unsigned char *)p + (pos / 8);\ -+ d = ((unsigned char *) &val) + 7;\ -+ for(bits = 0; bits < (tbits + b_pos); bits += 8) \ -+ *d-- = *s++;\ -+ value = (val >> (SHIFT))/* & ((1 << tbits) - 1)*/;\ -+} -+ -+#define SQUASHFS_MEMSET(s, d, n) memset(s, 0, n); -+ -+#endif -+#endif ---- /dev/null -+++ linux-2.6.24-rc1/include/linux/squashfs_fs_i.h -@@ -0,0 +1,45 @@ -+#ifndef SQUASHFS_FS_I -+#define SQUASHFS_FS_I -+/* -+ * Squashfs -+ * -+ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007 -+ * Phillip Lougher -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version 2, -+ * or (at your option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -+ * -+ * squashfs_fs_i.h -+ */ -+ -+struct squashfs_inode_info { -+ long long start_block; -+ unsigned int offset; -+ union { -+ struct { -+ long long fragment_start_block; -+ unsigned int fragment_size; -+ unsigned int fragment_offset; -+ long long block_list_start; -+ } s1; -+ struct { -+ long long directory_index_start; -+ unsigned int directory_index_offset; -+ unsigned int directory_index_count; -+ unsigned int parent_inode; -+ } s2; -+ } u; -+ struct inode vfs_inode; -+}; -+#endif ---- /dev/null -+++ linux-2.6.24-rc1/include/linux/squashfs_fs_sb.h -@@ -0,0 +1,74 @@ -+#ifndef SQUASHFS_FS_SB -+#define SQUASHFS_FS_SB -+/* -+ * Squashfs -+ * -+ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007 -+ * Phillip Lougher -+ * -+ * This program is free software; you can redistribute it and/or -+ * modify it under the terms of the GNU General Public License -+ * as published by the Free Software Foundation; either version 2, -+ * or (at your option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. -+ * -+ * squashfs_fs_sb.h -+ */ -+ -+#include -+ -+struct squashfs_cache { -+ long long block; -+ int length; -+ long long next_index; -+ char *data; -+}; -+ -+struct squashfs_fragment_cache { -+ long long block; -+ int length; -+ unsigned int locked; -+ char *data; -+}; -+ -+struct squashfs_sb_info { -+ struct squashfs_super_block sblk; -+ int devblksize; -+ int devblksize_log2; -+ int swap; -+ struct squashfs_cache *block_cache; -+ struct squashfs_fragment_cache *fragment; -+ int next_cache; -+ int next_fragment; -+ int next_meta_index; -+ unsigned int *uid; -+ unsigned int *guid; -+ long long *fragment_index; -+ unsigned int *fragment_index_2; -+ char *read_page; -+ struct mutex read_data_mutex; -+ struct mutex read_page_mutex; -+ struct mutex block_cache_mutex; -+ struct mutex fragment_mutex; -+ struct mutex meta_index_mutex; -+ wait_queue_head_t waitq; -+ wait_queue_head_t fragment_wait_queue; -+ struct meta_index *meta_index; -+ z_stream stream; -+ long long *inode_lookup_table; -+ int (*read_inode)(struct inode *i, squashfs_inode_t \ -+ inode); -+ long long (*read_blocklist)(struct inode *inode, int \ -+ index, int readahead_blks, char *block_list, \ -+ unsigned short **block_p, unsigned int *bsize); -+ int (*read_fragment_index_table)(struct super_block *s); -+}; -+#endif ---- linux-2.6.24-rc1.orig/init/do_mounts_rd.c -+++ linux-2.6.24-rc1/init/do_mounts_rd.c -@@ -5,6 +5,7 @@ - #include - #include - #include -+#include - #include - #include - -@@ -39,6 +40,7 @@ - * numbers could not be found. - * - * We currently check for the following magic numbers: -+ * squashfs - * minix - * ext2 - * romfs -@@ -53,6 +55,7 @@ - struct ext2_super_block *ext2sb; - struct romfs_super_block *romfsb; - struct cramfs_super *cramfsb; -+ struct squashfs_super_block *squashfsb; - int nblocks = -1; - unsigned char *buf; - -@@ -64,6 +67,7 @@ - ext2sb = (struct ext2_super_block *) buf; - romfsb = (struct romfs_super_block *) buf; - cramfsb = (struct cramfs_super *) buf; -+ squashfsb = (struct squashfs_super_block *) buf; - memset(buf, 0xe5, size); - - /* -@@ -101,6 +105,18 @@ - goto done; - } - -+ /* squashfs is at block zero too */ -+ if (squashfsb->s_magic == SQUASHFS_MAGIC) { -+ printk(KERN_NOTICE -+ "RAMDISK: squashfs filesystem found at block %d\n", -+ start_block); -+ if (squashfsb->s_major < 3) -+ nblocks = (squashfsb->bytes_used_2+BLOCK_SIZE-1)>>BLOCK_SIZE_BITS; -+ else -+ nblocks = (squashfsb->bytes_used+BLOCK_SIZE-1)>>BLOCK_SIZE_BITS; -+ goto done; -+ } -+ - /* - * Read block 1 to test for minix and ext2 superblock - */ diff --git a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/squashfs3.3.patch b/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/squashfs3.3.patch new file mode 100644 index 000000000..cb9a5c49e --- /dev/null +++ b/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/squashfs3.3.patch @@ -0,0 +1,4234 @@ +diff -x .gitignore -Nurp linux-2.6.24/fs/Kconfig linux-2.6.24-squashfs3.3/fs/Kconfig +--- linux-2.6.24/fs/Kconfig 2007-10-25 17:41:45.000000000 +0100 ++++ linux-2.6.24-squashfs3.3/fs/Kconfig 2007-11-01 05:06:25.000000000 +0000 +@@ -1396,6 +1396,56 @@ config CRAMFS + + If unsure, say N. + ++config SQUASHFS ++ tristate "SquashFS 3.3 - Squashed file system support" ++ select ZLIB_INFLATE ++ help ++ Saying Y here includes support for SquashFS 3.3 (a Compressed ++ Read-Only File System). Squashfs is a highly compressed read-only ++ filesystem for Linux. It uses zlib compression to compress both ++ files, inodes and directories. Inodes in the system are very small ++ and all blocks are packed to minimise data overhead. Block sizes ++ greater than 4K are supported up to a maximum of 1 Mbytes (default ++ block size 128K). SquashFS 3.3 supports 64 bit filesystems and files ++ (larger than 4GB), full uid/gid information, hard links and timestamps. ++ ++ Squashfs is intended for general read-only filesystem use, for ++ archival use (i.e. in cases where a .tar.gz file may be used), and in ++ embedded systems where low overhead is needed. Further information ++ and filesystem tools are available from http://squashfs.sourceforge.net. ++ ++ If you want to compile this as a module ( = code which can be ++ inserted in and removed from the running kernel whenever you want), ++ say M here and read . The module ++ will be called squashfs. Note that the root file system (the one ++ containing the directory /) cannot be compiled as a module. ++ ++ If unsure, say N. ++ ++config SQUASHFS_EMBEDDED ++ ++ bool "Additional option for memory-constrained systems" ++ depends on SQUASHFS ++ default n ++ help ++ Saying Y here allows you to specify cache size. ++ ++ If unsure, say N. ++ ++config SQUASHFS_FRAGMENT_CACHE_SIZE ++ int "Number of fragments cached" if SQUASHFS_EMBEDDED ++ depends on SQUASHFS ++ default "3" ++ help ++ By default SquashFS caches the last 3 fragments read from ++ the filesystem. Increasing this amount may mean SquashFS ++ has to re-read fragments less often from disk, at the expense ++ of extra system memory. Decreasing this amount will mean ++ SquashFS uses less memory at the expense of extra reads from disk. ++ ++ Note there must be at least one cached fragment. Anything ++ much more than three will probably not make much difference. ++ + config VXFS_FS + tristate "FreeVxFS file system support (VERITAS VxFS(TM) compatible)" + depends on BLOCK +diff -x .gitignore -Nurp linux-2.6.24/fs/Makefile linux-2.6.24-squashfs3.3/fs/Makefile +--- linux-2.6.24/fs/Makefile 2007-10-25 17:41:45.000000000 +0100 ++++ linux-2.6.24-squashfs3.3/fs/Makefile 2007-11-01 05:08:09.000000000 +0000 +@@ -72,6 +72,7 @@ obj-$(CONFIG_JBD) += jbd/ + obj-$(CONFIG_JBD2) += jbd2/ + obj-$(CONFIG_EXT2_FS) += ext2/ + obj-$(CONFIG_CRAMFS) += cramfs/ ++obj-$(CONFIG_SQUASHFS) += squashfs/ + obj-y += ramfs/ + obj-$(CONFIG_HUGETLBFS) += hugetlbfs/ + obj-$(CONFIG_CODA_FS) += coda/ +diff -x .gitignore -Nurp linux-2.6.24/fs/squashfs/inode.c linux-2.6.24-squashfs3.3/fs/squashfs/inode.c +--- linux-2.6.24/fs/squashfs/inode.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.24-squashfs3.3/fs/squashfs/inode.c 2007-11-01 05:05:00.000000000 +0000 +@@ -0,0 +1,2192 @@ ++/* ++ * Squashfs - a compressed read only filesystem for Linux ++ * ++ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007 ++ * Phillip Lougher ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version 2, ++ * or (at your option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ * ++ * inode.c ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include "squashfs.h" ++ ++int squashfs_cached_blks; ++ ++static void vfs_read_inode(struct inode *i); ++static struct dentry *squashfs_get_parent(struct dentry *child); ++static int squashfs_read_inode(struct inode *i, squashfs_inode_t inode); ++static int squashfs_statfs(struct dentry *, struct kstatfs *); ++static int squashfs_symlink_readpage(struct file *file, struct page *page); ++static long long read_blocklist(struct inode *inode, int index, ++ int readahead_blks, char *block_list, ++ unsigned short **block_p, unsigned int *bsize); ++static int squashfs_readpage(struct file *file, struct page *page); ++static int squashfs_readdir(struct file *, void *, filldir_t); ++static struct dentry *squashfs_lookup(struct inode *, struct dentry *, ++ struct nameidata *); ++static int squashfs_remount(struct super_block *s, int *flags, char *data); ++static void squashfs_put_super(struct super_block *); ++static int squashfs_get_sb(struct file_system_type *,int, const char *, void *, ++ struct vfsmount *); ++static struct inode *squashfs_alloc_inode(struct super_block *sb); ++static void squashfs_destroy_inode(struct inode *inode); ++static int init_inodecache(void); ++static void destroy_inodecache(void); ++ ++static struct file_system_type squashfs_fs_type = { ++ .owner = THIS_MODULE, ++ .name = "squashfs", ++ .get_sb = squashfs_get_sb, ++ .kill_sb = kill_block_super, ++ .fs_flags = FS_REQUIRES_DEV ++}; ++ ++static const unsigned char squashfs_filetype_table[] = { ++ DT_UNKNOWN, DT_DIR, DT_REG, DT_LNK, DT_BLK, DT_CHR, DT_FIFO, DT_SOCK ++}; ++ ++static struct super_operations squashfs_super_ops = { ++ .alloc_inode = squashfs_alloc_inode, ++ .destroy_inode = squashfs_destroy_inode, ++ .statfs = squashfs_statfs, ++ .put_super = squashfs_put_super, ++ .remount_fs = squashfs_remount ++}; ++ ++static struct super_operations squashfs_export_super_ops = { ++ .alloc_inode = squashfs_alloc_inode, ++ .destroy_inode = squashfs_destroy_inode, ++ .statfs = squashfs_statfs, ++ .put_super = squashfs_put_super, ++ .read_inode = vfs_read_inode ++}; ++ ++static struct export_operations squashfs_export_ops = { ++ .get_parent = squashfs_get_parent ++}; ++ ++SQSH_EXTERN const struct address_space_operations squashfs_symlink_aops = { ++ .readpage = squashfs_symlink_readpage ++}; ++ ++SQSH_EXTERN const struct address_space_operations squashfs_aops = { ++ .readpage = squashfs_readpage ++}; ++ ++static const struct file_operations squashfs_dir_ops = { ++ .read = generic_read_dir, ++ .readdir = squashfs_readdir ++}; ++ ++SQSH_EXTERN struct inode_operations squashfs_dir_inode_ops = { ++ .lookup = squashfs_lookup ++}; ++ ++ ++static struct buffer_head *get_block_length(struct super_block *s, ++ int *cur_index, int *offset, int *c_byte) ++{ ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ unsigned short temp; ++ struct buffer_head *bh; ++ ++ if (!(bh = sb_bread(s, *cur_index))) ++ goto out; ++ ++ if (msblk->devblksize - *offset == 1) { ++ if (msblk->swap) ++ ((unsigned char *) &temp)[1] = *((unsigned char *) ++ (bh->b_data + *offset)); ++ else ++ ((unsigned char *) &temp)[0] = *((unsigned char *) ++ (bh->b_data + *offset)); ++ brelse(bh); ++ if (!(bh = sb_bread(s, ++(*cur_index)))) ++ goto out; ++ if (msblk->swap) ++ ((unsigned char *) &temp)[0] = *((unsigned char *) ++ bh->b_data); ++ else ++ ((unsigned char *) &temp)[1] = *((unsigned char *) ++ bh->b_data); ++ *c_byte = temp; ++ *offset = 1; ++ } else { ++ if (msblk->swap) { ++ ((unsigned char *) &temp)[1] = *((unsigned char *) ++ (bh->b_data + *offset)); ++ ((unsigned char *) &temp)[0] = *((unsigned char *) ++ (bh->b_data + *offset + 1)); ++ } else { ++ ((unsigned char *) &temp)[0] = *((unsigned char *) ++ (bh->b_data + *offset)); ++ ((unsigned char *) &temp)[1] = *((unsigned char *) ++ (bh->b_data + *offset + 1)); ++ } ++ *c_byte = temp; ++ *offset += 2; ++ } ++ ++ if (SQUASHFS_CHECK_DATA(msblk->sblk.flags)) { ++ if (*offset == msblk->devblksize) { ++ brelse(bh); ++ if (!(bh = sb_bread(s, ++(*cur_index)))) ++ goto out; ++ *offset = 0; ++ } ++ if (*((unsigned char *) (bh->b_data + *offset)) != ++ SQUASHFS_MARKER_BYTE) { ++ ERROR("Metadata block marker corrupt @ %x\n", ++ *cur_index); ++ brelse(bh); ++ goto out; ++ } ++ (*offset)++; ++ } ++ return bh; ++ ++out: ++ return NULL; ++} ++ ++ ++SQSH_EXTERN unsigned int squashfs_read_data(struct super_block *s, char *buffer, ++ long long index, unsigned int length, ++ long long *next_index, int srclength) ++{ ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ struct buffer_head **bh; ++ unsigned int offset = index & ((1 << msblk->devblksize_log2) - 1); ++ unsigned int cur_index = index >> msblk->devblksize_log2; ++ int bytes, avail_bytes, b = 0, k = 0; ++ unsigned int compressed; ++ unsigned int c_byte = length; ++ ++ bh = kmalloc(((sblk->block_size >> msblk->devblksize_log2) + 1) * ++ sizeof(struct buffer_head *), GFP_KERNEL); ++ if (bh == NULL) ++ goto read_failure; ++ ++ if (c_byte) { ++ bytes = msblk->devblksize - offset; ++ compressed = SQUASHFS_COMPRESSED_BLOCK(c_byte); ++ c_byte = SQUASHFS_COMPRESSED_SIZE_BLOCK(c_byte); ++ ++ TRACE("Block @ 0x%llx, %scompressed size %d, src size %d\n", index, ++ compressed ? "" : "un", (unsigned int) c_byte, srclength); ++ ++ if (c_byte > srclength || index < 0 || (index + c_byte) > sblk->bytes_used) ++ goto read_failure; ++ ++ bh[0] = sb_getblk(s, cur_index); ++ if (bh[0] == NULL) ++ goto block_release; ++ ++ for (b = 1; bytes < c_byte; b++) { ++ bh[b] = sb_getblk(s, ++cur_index); ++ if (bh[b] == NULL) ++ goto block_release; ++ bytes += msblk->devblksize; ++ } ++ ll_rw_block(READ, b, bh); ++ } else { ++ if (index < 0 || (index + 2) > sblk->bytes_used) ++ goto read_failure; ++ ++ bh[0] = get_block_length(s, &cur_index, &offset, &c_byte); ++ if (bh[0] == NULL) ++ goto read_failure; ++ ++ bytes = msblk->devblksize - offset; ++ compressed = SQUASHFS_COMPRESSED(c_byte); ++ c_byte = SQUASHFS_COMPRESSED_SIZE(c_byte); ++ ++ TRACE("Block @ 0x%llx, %scompressed size %d\n", index, compressed ++ ? "" : "un", (unsigned int) c_byte); ++ ++ if (c_byte > srclength || (index + c_byte) > sblk->bytes_used) ++ goto read_failure; ++ ++ for (b = 1; bytes < c_byte; b++) { ++ bh[b] = sb_getblk(s, ++cur_index); ++ if (bh[b] == NULL) ++ goto block_release; ++ bytes += msblk->devblksize; ++ } ++ ll_rw_block(READ, b - 1, bh + 1); ++ } ++ ++ if (compressed) { ++ int zlib_err = 0; ++ ++ /* ++ * uncompress block ++ */ ++ ++ mutex_lock(&msblk->read_data_mutex); ++ ++ msblk->stream.next_out = buffer; ++ msblk->stream.avail_out = srclength; ++ ++ for (bytes = 0; k < b; k++) { ++ avail_bytes = min(c_byte - bytes, msblk->devblksize - offset); ++ ++ wait_on_buffer(bh[k]); ++ if (!buffer_uptodate(bh[k])) ++ goto release_mutex; ++ ++ msblk->stream.next_in = bh[k]->b_data + offset; ++ msblk->stream.avail_in = avail_bytes; ++ ++ if (k == 0) { ++ zlib_err = zlib_inflateInit(&msblk->stream); ++ if (zlib_err != Z_OK) { ++ ERROR("zlib_inflateInit returned unexpected result 0x%x," ++ " srclength %d\n", zlib_err, srclength); ++ goto release_mutex; ++ } ++ ++ if (avail_bytes == 0) { ++ offset = 0; ++ brelse(bh[k]); ++ continue; ++ } ++ } ++ ++ zlib_err = zlib_inflate(&msblk->stream, Z_NO_FLUSH); ++ if (zlib_err != Z_OK && zlib_err != Z_STREAM_END) { ++ ERROR("zlib_inflate returned unexpected result 0x%x," ++ " srclength %d, avail_in %d, avail_out %d\n", zlib_err, ++ srclength, msblk->stream.avail_in, msblk->stream.avail_out); ++ goto release_mutex; ++ } ++ ++ bytes += avail_bytes; ++ offset = 0; ++ brelse(bh[k]); ++ } ++ ++ if (zlib_err != Z_STREAM_END) ++ goto release_mutex; ++ ++ zlib_err = zlib_inflateEnd(&msblk->stream); ++ if (zlib_err != Z_OK) { ++ ERROR("zlib_inflateEnd returned unexpected result 0x%x," ++ " srclength %d\n", zlib_err, srclength); ++ goto release_mutex; ++ } ++ bytes = msblk->stream.total_out; ++ mutex_unlock(&msblk->read_data_mutex); ++ } else { ++ int i; ++ ++ for(i = 0; i < b; i++) { ++ wait_on_buffer(bh[i]); ++ if (!buffer_uptodate(bh[i])) ++ goto block_release; ++ } ++ ++ for (bytes = 0; k < b; k++) { ++ avail_bytes = min(c_byte - bytes, msblk->devblksize - offset); ++ ++ memcpy(buffer + bytes, bh[k]->b_data + offset, avail_bytes); ++ bytes += avail_bytes; ++ offset = 0; ++ brelse(bh[k]); ++ } ++ } ++ ++ if (next_index) ++ *next_index = index + c_byte + (length ? 0 : ++ (SQUASHFS_CHECK_DATA(msblk->sblk.flags) ? 3 : 2)); ++ ++ kfree(bh); ++ return bytes; ++ ++release_mutex: ++ mutex_unlock(&msblk->read_data_mutex); ++ ++block_release: ++ for (; k < b; k++) ++ brelse(bh[k]); ++ ++read_failure: ++ ERROR("sb_bread failed reading block 0x%x\n", cur_index); ++ kfree(bh); ++ return 0; ++} ++ ++ ++SQSH_EXTERN int squashfs_get_cached_block(struct super_block *s, void *buffer, ++ long long block, unsigned int offset, ++ int length, long long *next_block, ++ unsigned int *next_offset) ++{ ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ int n, i, bytes, return_length = length; ++ long long next_index; ++ ++ TRACE("Entered squashfs_get_cached_block [%llx:%x]\n", block, offset); ++ ++ while (1) { ++ for (i = 0; i < squashfs_cached_blks; i++) ++ if (msblk->block_cache[i].block == block) ++ break; ++ ++ mutex_lock(&msblk->block_cache_mutex); ++ ++ if (i == squashfs_cached_blks) { ++ /* read inode header block */ ++ if (msblk->unused_cache_blks == 0) { ++ mutex_unlock(&msblk->block_cache_mutex); ++ wait_event(msblk->waitq, msblk->unused_cache_blks); ++ continue; ++ } ++ ++ i = msblk->next_cache; ++ for (n = 0; n < squashfs_cached_blks; n++) { ++ if (msblk->block_cache[i].block != SQUASHFS_USED_BLK) ++ break; ++ i = (i + 1) % squashfs_cached_blks; ++ } ++ ++ msblk->next_cache = (i + 1) % squashfs_cached_blks; ++ ++ if (msblk->block_cache[i].block == SQUASHFS_INVALID_BLK) { ++ msblk->block_cache[i].data = vmalloc(SQUASHFS_METADATA_SIZE); ++ if (msblk->block_cache[i].data == NULL) { ++ ERROR("Failed to allocate cache block\n"); ++ mutex_unlock(&msblk->block_cache_mutex); ++ goto out; ++ } ++ } ++ ++ msblk->block_cache[i].block = SQUASHFS_USED_BLK; ++ msblk->unused_cache_blks --; ++ mutex_unlock(&msblk->block_cache_mutex); ++ ++ msblk->block_cache[i].length = squashfs_read_data(s, ++ msblk->block_cache[i].data, block, 0, &next_index, ++ SQUASHFS_METADATA_SIZE); ++ ++ if (msblk->block_cache[i].length == 0) { ++ ERROR("Unable to read cache block [%llx:%x]\n", block, offset); ++ mutex_lock(&msblk->block_cache_mutex); ++ msblk->block_cache[i].block = SQUASHFS_INVALID_BLK; ++ msblk->unused_cache_blks ++; ++ smp_mb(); ++ vfree(msblk->block_cache[i].data); ++ wake_up(&msblk->waitq); ++ mutex_unlock(&msblk->block_cache_mutex); ++ goto out; ++ } ++ ++ mutex_lock(&msblk->block_cache_mutex); ++ msblk->block_cache[i].block = block; ++ msblk->block_cache[i].next_index = next_index; ++ msblk->unused_cache_blks ++; ++ smp_mb(); ++ wake_up(&msblk->waitq); ++ TRACE("Read cache block [%llx:%x]\n", block, offset); ++ } ++ ++ if (msblk->block_cache[i].block != block) { ++ mutex_unlock(&msblk->block_cache_mutex); ++ continue; ++ } ++ ++ bytes = msblk->block_cache[i].length - offset; ++ ++ if (bytes < 1) { ++ mutex_unlock(&msblk->block_cache_mutex); ++ goto out; ++ } else if (bytes >= length) { ++ if (buffer) ++ memcpy(buffer, msblk->block_cache[i].data + offset, length); ++ if (msblk->block_cache[i].length - offset == length) { ++ *next_block = msblk->block_cache[i].next_index; ++ *next_offset = 0; ++ } else { ++ *next_block = block; ++ *next_offset = offset + length; ++ } ++ mutex_unlock(&msblk->block_cache_mutex); ++ goto finish; ++ } else { ++ if (buffer) { ++ memcpy(buffer, msblk->block_cache[i].data + offset, bytes); ++ buffer = (char *) buffer + bytes; ++ } ++ block = msblk->block_cache[i].next_index; ++ mutex_unlock(&msblk->block_cache_mutex); ++ length -= bytes; ++ offset = 0; ++ } ++ } ++ ++finish: ++ return return_length; ++out: ++ return 0; ++} ++ ++ ++static int get_fragment_location(struct super_block *s, unsigned int fragment, ++ long long *fragment_start_block, ++ unsigned int *fragment_size) ++{ ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ long long start_block = ++ msblk->fragment_index[SQUASHFS_FRAGMENT_INDEX(fragment)]; ++ int offset = SQUASHFS_FRAGMENT_INDEX_OFFSET(fragment); ++ struct squashfs_fragment_entry fragment_entry; ++ ++ if (msblk->swap) { ++ struct squashfs_fragment_entry sfragment_entry; ++ ++ if (!squashfs_get_cached_block(s, &sfragment_entry, start_block, offset, ++ sizeof(sfragment_entry), &start_block, &offset)) ++ goto out; ++ SQUASHFS_SWAP_FRAGMENT_ENTRY(&fragment_entry, &sfragment_entry); ++ } else ++ if (!squashfs_get_cached_block(s, &fragment_entry, start_block, offset, ++ sizeof(fragment_entry), &start_block, &offset)) ++ goto out; ++ ++ *fragment_start_block = fragment_entry.start_block; ++ *fragment_size = fragment_entry.size; ++ ++ return 1; ++ ++out: ++ return 0; ++} ++ ++ ++SQSH_EXTERN void release_cached_fragment(struct squashfs_sb_info *msblk, ++ struct squashfs_fragment_cache *fragment) ++{ ++ mutex_lock(&msblk->fragment_mutex); ++ fragment->locked --; ++ if (fragment->locked == 0) { ++ msblk->unused_frag_blks ++; ++ smp_mb(); ++ wake_up(&msblk->fragment_wait_queue); ++ } ++ mutex_unlock(&msblk->fragment_mutex); ++} ++ ++ ++SQSH_EXTERN ++struct squashfs_fragment_cache *get_cached_fragment(struct super_block *s, ++ long long start_block, int length) ++{ ++ int i, n; ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ ++ while (1) { ++ mutex_lock(&msblk->fragment_mutex); ++ ++ for (i = 0; i < SQUASHFS_CACHED_FRAGMENTS && ++ msblk->fragment[i].block != start_block; i++); ++ ++ if (i == SQUASHFS_CACHED_FRAGMENTS) { ++ if (msblk->unused_frag_blks == 0) { ++ mutex_unlock(&msblk->fragment_mutex); ++ wait_event(msblk->fragment_wait_queue, msblk->unused_frag_blks); ++ continue; ++ } ++ ++ i = msblk->next_fragment; ++ for (n = 0; n < SQUASHFS_CACHED_FRAGMENTS; n++) { ++ if (msblk->fragment[i].locked == 0) ++ break; ++ i = (i + 1) % SQUASHFS_CACHED_FRAGMENTS; ++ } ++ ++ msblk->next_fragment = (msblk->next_fragment + 1) % ++ SQUASHFS_CACHED_FRAGMENTS; ++ ++ if (msblk->fragment[i].data == NULL) { ++ msblk->fragment[i].data = vmalloc(sblk->block_size); ++ if (msblk->fragment[i].data == NULL) { ++ ERROR("Failed to allocate fragment cache block\n"); ++ mutex_unlock(&msblk->fragment_mutex); ++ goto out; ++ } ++ } ++ ++ msblk->unused_frag_blks --; ++ msblk->fragment[i].block = SQUASHFS_INVALID_BLK; ++ msblk->fragment[i].locked = 1; ++ mutex_unlock(&msblk->fragment_mutex); ++ ++ msblk->fragment[i].length = squashfs_read_data(s, ++ msblk->fragment[i].data, start_block, length, NULL, ++ sblk->block_size); ++ ++ if (msblk->fragment[i].length == 0) { ++ ERROR("Unable to read fragment cache block [%llx]\n", start_block); ++ msblk->fragment[i].locked = 0; ++ msblk->unused_frag_blks ++; ++ smp_mb(); ++ wake_up(&msblk->fragment_wait_queue); ++ goto out; ++ } ++ ++ mutex_lock(&msblk->fragment_mutex); ++ msblk->fragment[i].block = start_block; ++ TRACE("New fragment %d, start block %lld, locked %d\n", ++ i, msblk->fragment[i].block, msblk->fragment[i].locked); ++ mutex_unlock(&msblk->fragment_mutex); ++ break; ++ } ++ ++ if (msblk->fragment[i].locked == 0) ++ msblk->unused_frag_blks --; ++ msblk->fragment[i].locked++; ++ mutex_unlock(&msblk->fragment_mutex); ++ TRACE("Got fragment %d, start block %lld, locked %d\n", i, ++ msblk->fragment[i].block, msblk->fragment[i].locked); ++ break; ++ } ++ ++ return &msblk->fragment[i]; ++ ++out: ++ return NULL; ++} ++ ++ ++static void squashfs_new_inode(struct squashfs_sb_info *msblk, struct inode *i, ++ struct squashfs_base_inode_header *inodeb) ++{ ++ i->i_ino = inodeb->inode_number; ++ i->i_mtime.tv_sec = inodeb->mtime; ++ i->i_atime.tv_sec = inodeb->mtime; ++ i->i_ctime.tv_sec = inodeb->mtime; ++ i->i_uid = msblk->uid[inodeb->uid]; ++ i->i_mode = inodeb->mode; ++ i->i_size = 0; ++ ++ if (inodeb->guid == SQUASHFS_GUIDS) ++ i->i_gid = i->i_uid; ++ else ++ i->i_gid = msblk->guid[inodeb->guid]; ++} ++ ++ ++static squashfs_inode_t squashfs_inode_lookup(struct super_block *s, int ino) ++{ ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ long long start = msblk->inode_lookup_table[SQUASHFS_LOOKUP_BLOCK(ino - 1)]; ++ int offset = SQUASHFS_LOOKUP_BLOCK_OFFSET(ino - 1); ++ squashfs_inode_t inode; ++ ++ TRACE("Entered squashfs_inode_lookup, inode_number = %d\n", ino); ++ ++ if (msblk->swap) { ++ squashfs_inode_t sinode; ++ ++ if (!squashfs_get_cached_block(s, &sinode, start, offset, ++ sizeof(sinode), &start, &offset)) ++ goto out; ++ SQUASHFS_SWAP_INODE_T((&inode), &sinode); ++ } else if (!squashfs_get_cached_block(s, &inode, start, offset, ++ sizeof(inode), &start, &offset)) ++ goto out; ++ ++ TRACE("squashfs_inode_lookup, inode = 0x%llx\n", inode); ++ ++ return inode; ++ ++out: ++ return SQUASHFS_INVALID_BLK; ++} ++ ++ ++static void vfs_read_inode(struct inode *i) ++{ ++ struct squashfs_sb_info *msblk = i->i_sb->s_fs_info; ++ squashfs_inode_t inode = squashfs_inode_lookup(i->i_sb, i->i_ino); ++ ++ TRACE("Entered vfs_read_inode\n"); ++ ++ if(inode != SQUASHFS_INVALID_BLK) ++ (msblk->read_inode)(i, inode); ++} ++ ++ ++static struct dentry *squashfs_get_parent(struct dentry *child) ++{ ++ struct inode *i = child->d_inode; ++ struct inode *parent = iget(i->i_sb, SQUASHFS_I(i)->u.s2.parent_inode); ++ struct dentry *rv; ++ ++ TRACE("Entered squashfs_get_parent\n"); ++ ++ if(parent == NULL) { ++ rv = ERR_PTR(-EACCES); ++ goto out; ++ } ++ ++ rv = d_alloc_anon(parent); ++ if(rv == NULL) ++ rv = ERR_PTR(-ENOMEM); ++ ++out: ++ return rv; ++} ++ ++ ++SQSH_EXTERN struct inode *squashfs_iget(struct super_block *s, ++ squashfs_inode_t inode, unsigned int inode_number) ++{ ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ struct inode *i = iget_locked(s, inode_number); ++ ++ TRACE("Entered squashfs_iget\n"); ++ ++ if(i && (i->i_state & I_NEW)) { ++ (msblk->read_inode)(i, inode); ++ unlock_new_inode(i); ++ } ++ ++ return i; ++} ++ ++ ++static int squashfs_read_inode(struct inode *i, squashfs_inode_t inode) ++{ ++ struct super_block *s = i->i_sb; ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ long long block = SQUASHFS_INODE_BLK(inode) + sblk->inode_table_start; ++ unsigned int offset = SQUASHFS_INODE_OFFSET(inode); ++ long long next_block; ++ unsigned int next_offset; ++ union squashfs_inode_header id, sid; ++ struct squashfs_base_inode_header *inodeb = &id.base, *sinodeb = &sid.base; ++ ++ TRACE("Entered squashfs_read_inode\n"); ++ ++ if (msblk->swap) { ++ if (!squashfs_get_cached_block(s, sinodeb, block, offset, ++ sizeof(*sinodeb), &next_block, &next_offset)) ++ goto failed_read; ++ SQUASHFS_SWAP_BASE_INODE_HEADER(inodeb, sinodeb, sizeof(*sinodeb)); ++ } else ++ if (!squashfs_get_cached_block(s, inodeb, block, offset, ++ sizeof(*inodeb), &next_block, &next_offset)) ++ goto failed_read; ++ ++ squashfs_new_inode(msblk, i, inodeb); ++ ++ switch(inodeb->inode_type) { ++ case SQUASHFS_FILE_TYPE: { ++ unsigned int frag_size; ++ long long frag_blk; ++ struct squashfs_reg_inode_header *inodep = &id.reg; ++ struct squashfs_reg_inode_header *sinodep = &sid.reg; ++ ++ if (msblk->swap) { ++ if (!squashfs_get_cached_block(s, sinodep, block, offset, ++ sizeof(*sinodep), &next_block, &next_offset)) ++ goto failed_read; ++ SQUASHFS_SWAP_REG_INODE_HEADER(inodep, sinodep); ++ } else ++ if (!squashfs_get_cached_block(s, inodep, block, offset, ++ sizeof(*inodep), &next_block, &next_offset)) ++ goto failed_read; ++ ++ frag_blk = SQUASHFS_INVALID_BLK; ++ ++ if (inodep->fragment != SQUASHFS_INVALID_FRAG) ++ if(!get_fragment_location(s, inodep->fragment, &frag_blk, ++ &frag_size)) ++ goto failed_read; ++ ++ i->i_nlink = 1; ++ i->i_size = inodep->file_size; ++ i->i_fop = &generic_ro_fops; ++ i->i_mode |= S_IFREG; ++ i->i_blocks = ((i->i_size - 1) >> 9) + 1; ++ SQUASHFS_I(i)->u.s1.fragment_start_block = frag_blk; ++ SQUASHFS_I(i)->u.s1.fragment_size = frag_size; ++ SQUASHFS_I(i)->u.s1.fragment_offset = inodep->offset; ++ SQUASHFS_I(i)->start_block = inodep->start_block; ++ SQUASHFS_I(i)->u.s1.block_list_start = next_block; ++ SQUASHFS_I(i)->offset = next_offset; ++ i->i_data.a_ops = &squashfs_aops; ++ ++ TRACE("File inode %x:%x, start_block %llx, " ++ "block_list_start %llx, offset %x\n", ++ SQUASHFS_INODE_BLK(inode), offset, ++ inodep->start_block, next_block, ++ next_offset); ++ break; ++ } ++ case SQUASHFS_LREG_TYPE: { ++ unsigned int frag_size; ++ long long frag_blk; ++ struct squashfs_lreg_inode_header *inodep = &id.lreg; ++ struct squashfs_lreg_inode_header *sinodep = &sid.lreg; ++ ++ if (msblk->swap) { ++ if (!squashfs_get_cached_block(s, sinodep, block, offset, ++ sizeof(*sinodep), &next_block, &next_offset)) ++ goto failed_read; ++ SQUASHFS_SWAP_LREG_INODE_HEADER(inodep, sinodep); ++ } else ++ if (!squashfs_get_cached_block(s, inodep, block, offset, ++ sizeof(*inodep), &next_block, &next_offset)) ++ goto failed_read; ++ ++ frag_blk = SQUASHFS_INVALID_BLK; ++ ++ if (inodep->fragment != SQUASHFS_INVALID_FRAG) ++ if (!get_fragment_location(s, inodep->fragment, &frag_blk, ++ &frag_size)) ++ goto failed_read; ++ ++ i->i_nlink = inodep->nlink; ++ i->i_size = inodep->file_size; ++ i->i_fop = &generic_ro_fops; ++ i->i_mode |= S_IFREG; ++ i->i_blocks = ((i->i_size - 1) >> 9) + 1; ++ SQUASHFS_I(i)->u.s1.fragment_start_block = frag_blk; ++ SQUASHFS_I(i)->u.s1.fragment_size = frag_size; ++ SQUASHFS_I(i)->u.s1.fragment_offset = inodep->offset; ++ SQUASHFS_I(i)->start_block = inodep->start_block; ++ SQUASHFS_I(i)->u.s1.block_list_start = next_block; ++ SQUASHFS_I(i)->offset = next_offset; ++ i->i_data.a_ops = &squashfs_aops; ++ ++ TRACE("File inode %x:%x, start_block %llx, " ++ "block_list_start %llx, offset %x\n", ++ SQUASHFS_INODE_BLK(inode), offset, ++ inodep->start_block, next_block, ++ next_offset); ++ break; ++ } ++ case SQUASHFS_DIR_TYPE: { ++ struct squashfs_dir_inode_header *inodep = &id.dir; ++ struct squashfs_dir_inode_header *sinodep = &sid.dir; ++ ++ if (msblk->swap) { ++ if (!squashfs_get_cached_block(s, sinodep, block, offset, ++ sizeof(*sinodep), &next_block, &next_offset)) ++ goto failed_read; ++ SQUASHFS_SWAP_DIR_INODE_HEADER(inodep, sinodep); ++ } else ++ if (!squashfs_get_cached_block(s, inodep, block, offset, ++ sizeof(*inodep), &next_block, &next_offset)) ++ goto failed_read; ++ ++ i->i_nlink = inodep->nlink; ++ i->i_size = inodep->file_size; ++ i->i_op = &squashfs_dir_inode_ops; ++ i->i_fop = &squashfs_dir_ops; ++ i->i_mode |= S_IFDIR; ++ SQUASHFS_I(i)->start_block = inodep->start_block; ++ SQUASHFS_I(i)->offset = inodep->offset; ++ SQUASHFS_I(i)->u.s2.directory_index_count = 0; ++ SQUASHFS_I(i)->u.s2.parent_inode = inodep->parent_inode; ++ ++ TRACE("Directory inode %x:%x, start_block %x, offset " ++ "%x\n", SQUASHFS_INODE_BLK(inode), ++ offset, inodep->start_block, ++ inodep->offset); ++ break; ++ } ++ case SQUASHFS_LDIR_TYPE: { ++ struct squashfs_ldir_inode_header *inodep = &id.ldir; ++ struct squashfs_ldir_inode_header *sinodep = &sid.ldir; ++ ++ if (msblk->swap) { ++ if (!squashfs_get_cached_block(s, sinodep, block, offset, ++ sizeof(*sinodep), &next_block, &next_offset)) ++ goto failed_read; ++ SQUASHFS_SWAP_LDIR_INODE_HEADER(inodep, sinodep); ++ } else ++ if (!squashfs_get_cached_block(s, inodep, block, offset, ++ sizeof(*inodep), &next_block, &next_offset)) ++ goto failed_read; ++ ++ i->i_nlink = inodep->nlink; ++ i->i_size = inodep->file_size; ++ i->i_op = &squashfs_dir_inode_ops; ++ i->i_fop = &squashfs_dir_ops; ++ i->i_mode |= S_IFDIR; ++ SQUASHFS_I(i)->start_block = inodep->start_block; ++ SQUASHFS_I(i)->offset = inodep->offset; ++ SQUASHFS_I(i)->u.s2.directory_index_start = next_block; ++ SQUASHFS_I(i)->u.s2.directory_index_offset = next_offset; ++ SQUASHFS_I(i)->u.s2.directory_index_count = inodep->i_count; ++ SQUASHFS_I(i)->u.s2.parent_inode = inodep->parent_inode; ++ ++ TRACE("Long directory inode %x:%x, start_block %x, offset %x\n", ++ SQUASHFS_INODE_BLK(inode), offset, ++ inodep->start_block, inodep->offset); ++ break; ++ } ++ case SQUASHFS_SYMLINK_TYPE: { ++ struct squashfs_symlink_inode_header *inodep = &id.symlink; ++ struct squashfs_symlink_inode_header *sinodep = &sid.symlink; ++ ++ if (msblk->swap) { ++ if (!squashfs_get_cached_block(s, sinodep, block, offset, ++ sizeof(*sinodep), &next_block, &next_offset)) ++ goto failed_read; ++ SQUASHFS_SWAP_SYMLINK_INODE_HEADER(inodep, sinodep); ++ } else ++ if (!squashfs_get_cached_block(s, inodep, block, offset, ++ sizeof(*inodep), &next_block, &next_offset)) ++ goto failed_read; ++ ++ i->i_nlink = inodep->nlink; ++ i->i_size = inodep->symlink_size; ++ i->i_op = &page_symlink_inode_operations; ++ i->i_data.a_ops = &squashfs_symlink_aops; ++ i->i_mode |= S_IFLNK; ++ SQUASHFS_I(i)->start_block = next_block; ++ SQUASHFS_I(i)->offset = next_offset; ++ ++ TRACE("Symbolic link inode %x:%x, start_block %llx, offset %x\n", ++ SQUASHFS_INODE_BLK(inode), offset, ++ next_block, next_offset); ++ break; ++ } ++ case SQUASHFS_BLKDEV_TYPE: ++ case SQUASHFS_CHRDEV_TYPE: { ++ struct squashfs_dev_inode_header *inodep = &id.dev; ++ struct squashfs_dev_inode_header *sinodep = &sid.dev; ++ ++ if (msblk->swap) { ++ if (!squashfs_get_cached_block(s, sinodep, block, offset, ++ sizeof(*sinodep), &next_block, &next_offset)) ++ goto failed_read; ++ SQUASHFS_SWAP_DEV_INODE_HEADER(inodep, sinodep); ++ } else ++ if (!squashfs_get_cached_block(s, inodep, block, offset, ++ sizeof(*inodep), &next_block, &next_offset)) ++ goto failed_read; ++ ++ i->i_nlink = inodep->nlink; ++ i->i_mode |= (inodeb->inode_type == SQUASHFS_CHRDEV_TYPE) ? ++ S_IFCHR : S_IFBLK; ++ init_special_inode(i, i->i_mode, old_decode_dev(inodep->rdev)); ++ ++ TRACE("Device inode %x:%x, rdev %x\n", ++ SQUASHFS_INODE_BLK(inode), offset, inodep->rdev); ++ break; ++ } ++ case SQUASHFS_FIFO_TYPE: ++ case SQUASHFS_SOCKET_TYPE: { ++ struct squashfs_ipc_inode_header *inodep = &id.ipc; ++ struct squashfs_ipc_inode_header *sinodep = &sid.ipc; ++ ++ if (msblk->swap) { ++ if (!squashfs_get_cached_block(s, sinodep, block, offset, ++ sizeof(*sinodep), &next_block, &next_offset)) ++ goto failed_read; ++ SQUASHFS_SWAP_IPC_INODE_HEADER(inodep, sinodep); ++ } else ++ if (!squashfs_get_cached_block(s, inodep, block, offset, ++ sizeof(*inodep), &next_block, &next_offset)) ++ goto failed_read; ++ ++ i->i_nlink = inodep->nlink; ++ i->i_mode |= (inodeb->inode_type == SQUASHFS_FIFO_TYPE) ++ ? S_IFIFO : S_IFSOCK; ++ init_special_inode(i, i->i_mode, 0); ++ break; ++ } ++ default: ++ ERROR("Unknown inode type %d in squashfs_iget!\n", ++ inodeb->inode_type); ++ goto failed_read1; ++ } ++ ++ return 1; ++ ++failed_read: ++ ERROR("Unable to read inode [%llx:%x]\n", block, offset); ++ ++failed_read1: ++ make_bad_inode(i); ++ return 0; ++} ++ ++ ++static int read_inode_lookup_table(struct super_block *s) ++{ ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ unsigned int length = SQUASHFS_LOOKUP_BLOCK_BYTES(sblk->inodes); ++ ++ TRACE("In read_inode_lookup_table, length %d\n", length); ++ ++ /* Allocate inode lookup table */ ++ msblk->inode_lookup_table = kmalloc(length, GFP_KERNEL); ++ if (msblk->inode_lookup_table == NULL) { ++ ERROR("Failed to allocate inode lookup table\n"); ++ return 0; ++ } ++ ++ if (!squashfs_read_data(s, (char *) msblk->inode_lookup_table, ++ sblk->lookup_table_start, length | ++ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, length)) { ++ ERROR("unable to read inode lookup table\n"); ++ return 0; ++ } ++ ++ if (msblk->swap) { ++ int i; ++ long long block; ++ ++ for (i = 0; i < SQUASHFS_LOOKUP_BLOCKS(sblk->inodes); i++) { ++ /* XXX */ ++ SQUASHFS_SWAP_LOOKUP_BLOCKS((&block), ++ &msblk->inode_lookup_table[i], 1); ++ msblk->inode_lookup_table[i] = block; ++ } ++ } ++ ++ return 1; ++} ++ ++ ++static int read_fragment_index_table(struct super_block *s) ++{ ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ unsigned int length = SQUASHFS_FRAGMENT_INDEX_BYTES(sblk->fragments); ++ ++ if(length == 0) ++ return 1; ++ ++ /* Allocate fragment index table */ ++ msblk->fragment_index = kmalloc(length, GFP_KERNEL); ++ if (msblk->fragment_index == NULL) { ++ ERROR("Failed to allocate fragment index table\n"); ++ return 0; ++ } ++ ++ if (!squashfs_read_data(s, (char *) msblk->fragment_index, ++ sblk->fragment_table_start, length | ++ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, length)) { ++ ERROR("unable to read fragment index table\n"); ++ return 0; ++ } ++ ++ if (msblk->swap) { ++ int i; ++ long long fragment; ++ ++ for (i = 0; i < SQUASHFS_FRAGMENT_INDEXES(sblk->fragments); i++) { ++ /* XXX */ ++ SQUASHFS_SWAP_FRAGMENT_INDEXES((&fragment), ++ &msblk->fragment_index[i], 1); ++ msblk->fragment_index[i] = fragment; ++ } ++ } ++ ++ return 1; ++} ++ ++ ++static int readahead_metadata(struct super_block *s) ++{ ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ int i; ++ ++ squashfs_cached_blks = SQUASHFS_CACHED_BLKS; ++ ++ /* Init inode_table block pointer array */ ++ msblk->block_cache = kmalloc(sizeof(struct squashfs_cache) * ++ squashfs_cached_blks, GFP_KERNEL); ++ if (msblk->block_cache == NULL) { ++ ERROR("Failed to allocate block cache\n"); ++ goto failed; ++ } ++ ++ for (i = 0; i < squashfs_cached_blks; i++) ++ msblk->block_cache[i].block = SQUASHFS_INVALID_BLK; ++ ++ msblk->next_cache = 0; ++ msblk->unused_cache_blks = squashfs_cached_blks; ++ ++ return 1; ++ ++failed: ++ return 0; ++} ++ ++ ++static int supported_squashfs_filesystem(struct squashfs_sb_info *msblk, int silent) ++{ ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ ++ msblk->read_inode = squashfs_read_inode; ++ msblk->read_blocklist = read_blocklist; ++ msblk->read_fragment_index_table = read_fragment_index_table; ++ ++ if (sblk->s_major == 1) { ++ if (!squashfs_1_0_supported(msblk)) { ++ SERROR("Major/Minor mismatch, Squashfs 1.0 filesystems " ++ "are unsupported\n"); ++ SERROR("Please recompile with Squashfs 1.0 support enabled\n"); ++ return 0; ++ } ++ } else if (sblk->s_major == 2) { ++ if (!squashfs_2_0_supported(msblk)) { ++ SERROR("Major/Minor mismatch, Squashfs 2.0 filesystems " ++ "are unsupported\n"); ++ SERROR("Please recompile with Squashfs 2.0 support enabled\n"); ++ return 0; ++ } ++ } else if(sblk->s_major != SQUASHFS_MAJOR || sblk->s_minor > ++ SQUASHFS_MINOR) { ++ SERROR("Major/Minor mismatch, trying to mount newer %d.%d " ++ "filesystem\n", sblk->s_major, sblk->s_minor); ++ SERROR("Please update your kernel\n"); ++ return 0; ++ } ++ ++ return 1; ++} ++ ++ ++static int squashfs_fill_super(struct super_block *s, void *data, int silent) ++{ ++ struct squashfs_sb_info *msblk; ++ struct squashfs_super_block *sblk; ++ int i; ++ char b[BDEVNAME_SIZE]; ++ struct inode *root; ++ ++ TRACE("Entered squashfs_fill_superblock\n"); ++ ++ s->s_fs_info = kzalloc(sizeof(struct squashfs_sb_info), GFP_KERNEL); ++ if (s->s_fs_info == NULL) { ++ ERROR("Failed to allocate superblock\n"); ++ goto failure; ++ } ++ msblk = s->s_fs_info; ++ ++ msblk->stream.workspace = vmalloc(zlib_inflate_workspacesize()); ++ if (msblk->stream.workspace == NULL) { ++ ERROR("Failed to allocate zlib workspace\n"); ++ goto failure; ++ } ++ sblk = &msblk->sblk; ++ ++ msblk->devblksize = sb_min_blocksize(s, BLOCK_SIZE); ++ msblk->devblksize_log2 = ffz(~msblk->devblksize); ++ ++ mutex_init(&msblk->read_data_mutex); ++ mutex_init(&msblk->read_page_mutex); ++ mutex_init(&msblk->block_cache_mutex); ++ mutex_init(&msblk->fragment_mutex); ++ mutex_init(&msblk->meta_index_mutex); ++ ++ init_waitqueue_head(&msblk->waitq); ++ init_waitqueue_head(&msblk->fragment_wait_queue); ++ ++ /* sblk->bytes_used is checked in squashfs_read_data to ensure reads are not ++ * beyond filesystem end. As we're using squashfs_read_data to read sblk here, ++ * first set sblk->bytes_used to a useful value */ ++ sblk->bytes_used = sizeof(struct squashfs_super_block); ++ if (!squashfs_read_data(s, (char *) sblk, SQUASHFS_START, ++ sizeof(struct squashfs_super_block) | ++ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, sizeof(struct squashfs_super_block))) { ++ SERROR("unable to read superblock\n"); ++ goto failed_mount; ++ } ++ ++ /* Check it is a SQUASHFS superblock */ ++ if ((s->s_magic = sblk->s_magic) != SQUASHFS_MAGIC) { ++ if (sblk->s_magic == SQUASHFS_MAGIC_SWAP) { ++ struct squashfs_super_block ssblk; ++ ++ WARNING("Mounting a different endian SQUASHFS filesystem on %s\n", ++ bdevname(s->s_bdev, b)); ++ ++ SQUASHFS_SWAP_SUPER_BLOCK(&ssblk, sblk); ++ memcpy(sblk, &ssblk, sizeof(struct squashfs_super_block)); ++ msblk->swap = 1; ++ } else { ++ SERROR("Can't find a SQUASHFS superblock on %s\n", ++ bdevname(s->s_bdev, b)); ++ goto failed_mount; ++ } ++ } ++ ++ /* Check the MAJOR & MINOR versions */ ++ if(!supported_squashfs_filesystem(msblk, silent)) ++ goto failed_mount; ++ ++ /* Check the filesystem does not extend beyond the end of the ++ block device */ ++ if(sblk->bytes_used < 0 || sblk->bytes_used > i_size_read(s->s_bdev->bd_inode)) ++ goto failed_mount; ++ ++ /* Check the root inode for sanity */ ++ if (SQUASHFS_INODE_OFFSET(sblk->root_inode) > SQUASHFS_METADATA_SIZE) ++ goto failed_mount; ++ ++ TRACE("Found valid superblock on %s\n", bdevname(s->s_bdev, b)); ++ TRACE("Inodes are %scompressed\n", SQUASHFS_UNCOMPRESSED_INODES(sblk->flags) ++ ? "un" : ""); ++ TRACE("Data is %scompressed\n", SQUASHFS_UNCOMPRESSED_DATA(sblk->flags) ++ ? "un" : ""); ++ TRACE("Check data is %spresent in the filesystem\n", ++ SQUASHFS_CHECK_DATA(sblk->flags) ? "" : "not "); ++ TRACE("Filesystem size %lld bytes\n", sblk->bytes_used); ++ TRACE("Block size %d\n", sblk->block_size); ++ TRACE("Number of inodes %d\n", sblk->inodes); ++ if (sblk->s_major > 1) ++ TRACE("Number of fragments %d\n", sblk->fragments); ++ TRACE("Number of uids %d\n", sblk->no_uids); ++ TRACE("Number of gids %d\n", sblk->no_guids); ++ TRACE("sblk->inode_table_start %llx\n", sblk->inode_table_start); ++ TRACE("sblk->directory_table_start %llx\n", sblk->directory_table_start); ++ if (sblk->s_major > 1) ++ TRACE("sblk->fragment_table_start %llx\n", sblk->fragment_table_start); ++ TRACE("sblk->uid_start %llx\n", sblk->uid_start); ++ ++ s->s_maxbytes = MAX_LFS_FILESIZE; ++ s->s_flags |= MS_RDONLY; ++ s->s_op = &squashfs_super_ops; ++ ++ if (readahead_metadata(s) == 0) ++ goto failed_mount; ++ ++ /* Allocate read_page block */ ++ msblk->read_page = vmalloc(sblk->block_size); ++ if (msblk->read_page == NULL) { ++ ERROR("Failed to allocate read_page block\n"); ++ goto failed_mount; ++ } ++ ++ /* Allocate uid and gid tables */ ++ msblk->uid = kmalloc((sblk->no_uids + sblk->no_guids) * ++ sizeof(unsigned int), GFP_KERNEL); ++ if (msblk->uid == NULL) { ++ ERROR("Failed to allocate uid/gid table\n"); ++ goto failed_mount; ++ } ++ msblk->guid = msblk->uid + sblk->no_uids; ++ ++ if (msblk->swap) { ++ unsigned int suid[sblk->no_uids + sblk->no_guids]; ++ ++ if (!squashfs_read_data(s, (char *) &suid, sblk->uid_start, ++ ((sblk->no_uids + sblk->no_guids) * ++ sizeof(unsigned int)) | ++ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, (sblk->no_uids + sblk->no_guids) * sizeof(unsigned int))) { ++ ERROR("unable to read uid/gid table\n"); ++ goto failed_mount; ++ } ++ ++ SQUASHFS_SWAP_DATA(msblk->uid, suid, (sblk->no_uids + ++ sblk->no_guids), (sizeof(unsigned int) * 8)); ++ } else ++ if (!squashfs_read_data(s, (char *) msblk->uid, sblk->uid_start, ++ ((sblk->no_uids + sblk->no_guids) * ++ sizeof(unsigned int)) | ++ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, (sblk->no_uids + sblk->no_guids) * sizeof(unsigned int))) { ++ ERROR("unable to read uid/gid table\n"); ++ goto failed_mount; ++ } ++ ++ ++ if (sblk->s_major == 1 && squashfs_1_0_supported(msblk)) ++ goto allocate_root; ++ ++ msblk->fragment = kzalloc(sizeof(struct squashfs_fragment_cache) * ++ SQUASHFS_CACHED_FRAGMENTS, GFP_KERNEL); ++ if (msblk->fragment == NULL) { ++ ERROR("Failed to allocate fragment block cache\n"); ++ goto failed_mount; ++ } ++ ++ for (i = 0; i < SQUASHFS_CACHED_FRAGMENTS; i++) { ++ msblk->fragment[i].block = SQUASHFS_INVALID_BLK; ++ } ++ ++ msblk->next_fragment = 0; ++ msblk->unused_frag_blks = SQUASHFS_CACHED_FRAGMENTS; ++ ++ /* Allocate and read fragment index table */ ++ if (msblk->read_fragment_index_table(s) == 0) ++ goto failed_mount; ++ ++ if(sblk->s_major < 3 || sblk->lookup_table_start == SQUASHFS_INVALID_BLK) ++ goto allocate_root; ++ ++ /* Allocate and read inode lookup table */ ++ if (read_inode_lookup_table(s) == 0) ++ goto failed_mount; ++ ++ s->s_op = &squashfs_export_super_ops; ++ s->s_export_op = &squashfs_export_ops; ++ ++allocate_root: ++ root = new_inode(s); ++ if ((msblk->read_inode)(root, sblk->root_inode) == 0) ++ goto failed_mount; ++ insert_inode_hash(root); ++ ++ s->s_root = d_alloc_root(root); ++ if (s->s_root == NULL) { ++ ERROR("Root inode create failed\n"); ++ iput(root); ++ goto failed_mount; ++ } ++ ++ TRACE("Leaving squashfs_fill_super\n"); ++ return 0; ++ ++failed_mount: ++ kfree(msblk->inode_lookup_table); ++ kfree(msblk->fragment_index); ++ kfree(msblk->fragment); ++ kfree(msblk->uid); ++ vfree(msblk->read_page); ++ kfree(msblk->block_cache); ++ kfree(msblk->fragment_index_2); ++ vfree(msblk->stream.workspace); ++ kfree(s->s_fs_info); ++ s->s_fs_info = NULL; ++ return -EINVAL; ++ ++failure: ++ return -ENOMEM; ++} ++ ++ ++static int squashfs_statfs(struct dentry *dentry, struct kstatfs *buf) ++{ ++ struct squashfs_sb_info *msblk = dentry->d_sb->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ ++ TRACE("Entered squashfs_statfs\n"); ++ ++ buf->f_type = SQUASHFS_MAGIC; ++ buf->f_bsize = sblk->block_size; ++ buf->f_blocks = ((sblk->bytes_used - 1) >> sblk->block_log) + 1; ++ buf->f_bfree = buf->f_bavail = 0; ++ buf->f_files = sblk->inodes; ++ buf->f_ffree = 0; ++ buf->f_namelen = SQUASHFS_NAME_LEN; ++ ++ return 0; ++} ++ ++ ++static int squashfs_symlink_readpage(struct file *file, struct page *page) ++{ ++ struct inode *inode = page->mapping->host; ++ int index = page->index << PAGE_CACHE_SHIFT, length, bytes, avail_bytes; ++ long long block = SQUASHFS_I(inode)->start_block; ++ int offset = SQUASHFS_I(inode)->offset; ++ void *pageaddr = kmap(page); ++ ++ TRACE("Entered squashfs_symlink_readpage, page index %ld, start block " ++ "%llx, offset %x\n", page->index, ++ SQUASHFS_I(inode)->start_block, ++ SQUASHFS_I(inode)->offset); ++ ++ for (length = 0; length < index; length += bytes) { ++ bytes = squashfs_get_cached_block(inode->i_sb, NULL, block, ++ offset, PAGE_CACHE_SIZE, &block, &offset); ++ if (bytes == 0) { ++ ERROR("Unable to read symbolic link [%llx:%x]\n", block, offset); ++ goto skip_read; ++ } ++ } ++ ++ if (length != index) { ++ ERROR("(squashfs_symlink_readpage) length != index\n"); ++ bytes = 0; ++ goto skip_read; ++ } ++ ++ avail_bytes = min_t(int, i_size_read(inode) - length, PAGE_CACHE_SIZE); ++ ++ bytes = squashfs_get_cached_block(inode->i_sb, pageaddr, block, offset, ++ avail_bytes, &block, &offset); ++ if (bytes == 0) ++ ERROR("Unable to read symbolic link [%llx:%x]\n", block, offset); ++ ++skip_read: ++ memset(pageaddr + bytes, 0, PAGE_CACHE_SIZE - bytes); ++ kunmap(page); ++ flush_dcache_page(page); ++ SetPageUptodate(page); ++ unlock_page(page); ++ ++ return 0; ++} ++ ++ ++struct meta_index *locate_meta_index(struct inode *inode, int index, int offset) ++{ ++ struct meta_index *meta = NULL; ++ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info; ++ int i; ++ ++ mutex_lock(&msblk->meta_index_mutex); ++ ++ TRACE("locate_meta_index: index %d, offset %d\n", index, offset); ++ ++ if (msblk->meta_index == NULL) ++ goto not_allocated; ++ ++ for (i = 0; i < SQUASHFS_META_NUMBER; i ++) { ++ if (msblk->meta_index[i].inode_number == inode->i_ino && ++ msblk->meta_index[i].offset >= offset && ++ msblk->meta_index[i].offset <= index && ++ msblk->meta_index[i].locked == 0) { ++ TRACE("locate_meta_index: entry %d, offset %d\n", i, ++ msblk->meta_index[i].offset); ++ meta = &msblk->meta_index[i]; ++ offset = meta->offset; ++ } ++ } ++ ++ if (meta) ++ meta->locked = 1; ++ ++not_allocated: ++ mutex_unlock(&msblk->meta_index_mutex); ++ ++ return meta; ++} ++ ++ ++struct meta_index *empty_meta_index(struct inode *inode, int offset, int skip) ++{ ++ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info; ++ struct meta_index *meta = NULL; ++ int i; ++ ++ mutex_lock(&msblk->meta_index_mutex); ++ ++ TRACE("empty_meta_index: offset %d, skip %d\n", offset, skip); ++ ++ if (msblk->meta_index == NULL) { ++ msblk->meta_index = kmalloc(sizeof(struct meta_index) * ++ SQUASHFS_META_NUMBER, GFP_KERNEL); ++ if (msblk->meta_index == NULL) { ++ ERROR("Failed to allocate meta_index\n"); ++ goto failed; ++ } ++ for (i = 0; i < SQUASHFS_META_NUMBER; i++) { ++ msblk->meta_index[i].inode_number = 0; ++ msblk->meta_index[i].locked = 0; ++ } ++ msblk->next_meta_index = 0; ++ } ++ ++ for (i = SQUASHFS_META_NUMBER; i && ++ msblk->meta_index[msblk->next_meta_index].locked; i --) ++ msblk->next_meta_index = (msblk->next_meta_index + 1) % ++ SQUASHFS_META_NUMBER; ++ ++ if (i == 0) { ++ TRACE("empty_meta_index: failed!\n"); ++ goto failed; ++ } ++ ++ TRACE("empty_meta_index: returned meta entry %d, %p\n", ++ msblk->next_meta_index, ++ &msblk->meta_index[msblk->next_meta_index]); ++ ++ meta = &msblk->meta_index[msblk->next_meta_index]; ++ msblk->next_meta_index = (msblk->next_meta_index + 1) % ++ SQUASHFS_META_NUMBER; ++ ++ meta->inode_number = inode->i_ino; ++ meta->offset = offset; ++ meta->skip = skip; ++ meta->entries = 0; ++ meta->locked = 1; ++ ++failed: ++ mutex_unlock(&msblk->meta_index_mutex); ++ return meta; ++} ++ ++ ++void release_meta_index(struct inode *inode, struct meta_index *meta) ++{ ++ meta->locked = 0; ++ smp_mb(); ++} ++ ++ ++static int read_block_index(struct super_block *s, int blocks, char *block_list, ++ long long *start_block, int *offset) ++{ ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ unsigned int *block_listp; ++ int block = 0; ++ ++ if (msblk->swap) { ++ char sblock_list[blocks << 2]; ++ ++ if (!squashfs_get_cached_block(s, sblock_list, *start_block, ++ *offset, blocks << 2, start_block, offset)) { ++ ERROR("Fail reading block list [%llx:%x]\n", *start_block, *offset); ++ goto failure; ++ } ++ SQUASHFS_SWAP_INTS(((unsigned int *)block_list), ++ ((unsigned int *)sblock_list), blocks); ++ } else { ++ if (!squashfs_get_cached_block(s, block_list, *start_block, ++ *offset, blocks << 2, start_block, offset)) { ++ ERROR("Fail reading block list [%llx:%x]\n", *start_block, *offset); ++ goto failure; ++ } ++ } ++ ++ for (block_listp = (unsigned int *) block_list; blocks; ++ block_listp++, blocks --) ++ block += SQUASHFS_COMPRESSED_SIZE_BLOCK(*block_listp); ++ ++ return block; ++ ++failure: ++ return -1; ++} ++ ++ ++#define SIZE 256 ++ ++static inline int calculate_skip(int blocks) { ++ int skip = (blocks - 1) / ((SQUASHFS_SLOTS * SQUASHFS_META_ENTRIES + 1) * SQUASHFS_META_INDEXES); ++ return skip >= 7 ? 7 : skip + 1; ++} ++ ++ ++static int get_meta_index(struct inode *inode, int index, ++ long long *index_block, int *index_offset, ++ long long *data_block, char *block_list) ++{ ++ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ int skip = calculate_skip(i_size_read(inode) >> sblk->block_log); ++ int offset = 0; ++ struct meta_index *meta; ++ struct meta_entry *meta_entry; ++ long long cur_index_block = SQUASHFS_I(inode)->u.s1.block_list_start; ++ int cur_offset = SQUASHFS_I(inode)->offset; ++ long long cur_data_block = SQUASHFS_I(inode)->start_block; ++ int i; ++ ++ index /= SQUASHFS_META_INDEXES * skip; ++ ++ while (offset < index) { ++ meta = locate_meta_index(inode, index, offset + 1); ++ ++ if (meta == NULL) { ++ meta = empty_meta_index(inode, offset + 1, skip); ++ if (meta == NULL) ++ goto all_done; ++ } else { ++ if(meta->entries == 0) ++ goto failed; ++ /* XXX */ ++ offset = index < meta->offset + meta->entries ? index : ++ meta->offset + meta->entries - 1; ++ /* XXX */ ++ meta_entry = &meta->meta_entry[offset - meta->offset]; ++ cur_index_block = meta_entry->index_block + sblk->inode_table_start; ++ cur_offset = meta_entry->offset; ++ cur_data_block = meta_entry->data_block; ++ TRACE("get_meta_index: offset %d, meta->offset %d, " ++ "meta->entries %d\n", offset, meta->offset, meta->entries); ++ TRACE("get_meta_index: index_block 0x%llx, offset 0x%x" ++ " data_block 0x%llx\n", cur_index_block, ++ cur_offset, cur_data_block); ++ } ++ ++ for (i = meta->offset + meta->entries; i <= index && ++ i < meta->offset + SQUASHFS_META_ENTRIES; i++) { ++ int blocks = skip * SQUASHFS_META_INDEXES; ++ ++ while (blocks) { ++ int block = blocks > (SIZE >> 2) ? (SIZE >> 2) : blocks; ++ int res = read_block_index(inode->i_sb, block, block_list, ++ &cur_index_block, &cur_offset); ++ ++ if (res == -1) ++ goto failed; ++ ++ cur_data_block += res; ++ blocks -= block; ++ } ++ ++ meta_entry = &meta->meta_entry[i - meta->offset]; ++ meta_entry->index_block = cur_index_block - sblk->inode_table_start; ++ meta_entry->offset = cur_offset; ++ meta_entry->data_block = cur_data_block; ++ meta->entries ++; ++ offset ++; ++ } ++ ++ TRACE("get_meta_index: meta->offset %d, meta->entries %d\n", ++ meta->offset, meta->entries); ++ ++ release_meta_index(inode, meta); ++ } ++ ++all_done: ++ *index_block = cur_index_block; ++ *index_offset = cur_offset; ++ *data_block = cur_data_block; ++ ++ return offset * SQUASHFS_META_INDEXES * skip; ++ ++failed: ++ release_meta_index(inode, meta); ++ return -1; ++} ++ ++ ++static long long read_blocklist(struct inode *inode, int index, ++ int readahead_blks, char *block_list, ++ unsigned short **block_p, unsigned int *bsize) ++{ ++ long long block_ptr; ++ int offset; ++ long long block; ++ int res = get_meta_index(inode, index, &block_ptr, &offset, &block, ++ block_list); ++ ++ TRACE("read_blocklist: res %d, index %d, block_ptr 0x%llx, offset" ++ " 0x%x, block 0x%llx\n", res, index, block_ptr, offset, block); ++ ++ if(res == -1) ++ goto failure; ++ ++ index -= res; ++ ++ while (index) { ++ int blocks = index > (SIZE >> 2) ? (SIZE >> 2) : index; ++ int res = read_block_index(inode->i_sb, blocks, block_list, ++ &block_ptr, &offset); ++ if (res == -1) ++ goto failure; ++ block += res; ++ index -= blocks; ++ } ++ ++ if (read_block_index(inode->i_sb, 1, block_list, &block_ptr, &offset) == -1) ++ goto failure; ++ *bsize = *((unsigned int *) block_list); ++ ++ return block; ++ ++failure: ++ return 0; ++} ++ ++ ++static int squashfs_readpage(struct file *file, struct page *page) ++{ ++ struct inode *inode = page->mapping->host; ++ struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ unsigned char *block_list = NULL; ++ long long block; ++ unsigned int bsize, i; ++ int bytes; ++ int index = page->index >> (sblk->block_log - PAGE_CACHE_SHIFT); ++ void *pageaddr; ++ struct squashfs_fragment_cache *fragment = NULL; ++ char *data_ptr = msblk->read_page; ++ ++ int mask = (1 << (sblk->block_log - PAGE_CACHE_SHIFT)) - 1; ++ int start_index = page->index & ~mask; ++ int end_index = start_index | mask; ++ int file_end = i_size_read(inode) >> sblk->block_log; ++ int sparse = 0; ++ ++ TRACE("Entered squashfs_readpage, page index %lx, start block %llx\n", ++ page->index, SQUASHFS_I(inode)->start_block); ++ ++ if (page->index >= ((i_size_read(inode) + PAGE_CACHE_SIZE - 1) >> ++ PAGE_CACHE_SHIFT)) ++ goto out; ++ ++ if (SQUASHFS_I(inode)->u.s1.fragment_start_block == SQUASHFS_INVALID_BLK ++ || index < file_end) { ++ block_list = kmalloc(SIZE, GFP_KERNEL); ++ if (block_list == NULL) { ++ ERROR("Failed to allocate block_list\n"); ++ goto error_out; ++ } ++ ++ block = (msblk->read_blocklist)(inode, index, 1, block_list, NULL, &bsize); ++ if (block == 0) ++ goto error_out; ++ ++ if (bsize == 0) { /* hole */ ++ bytes = index == file_end ? ++ (i_size_read(inode) & (sblk->block_size - 1)) : sblk->block_size; ++ sparse = 1; ++ } else { ++ mutex_lock(&msblk->read_page_mutex); ++ ++ bytes = squashfs_read_data(inode->i_sb, msblk->read_page, block, ++ bsize, NULL, sblk->block_size); ++ ++ if (bytes == 0) { ++ ERROR("Unable to read page, block %llx, size %x\n", block, bsize); ++ mutex_unlock(&msblk->read_page_mutex); ++ goto error_out; ++ } ++ } ++ } else { ++ fragment = get_cached_fragment(inode->i_sb, ++ SQUASHFS_I(inode)-> u.s1.fragment_start_block, ++ SQUASHFS_I(inode)->u.s1.fragment_size); ++ ++ if (fragment == NULL) { ++ ERROR("Unable to read page, block %llx, size %x\n", ++ SQUASHFS_I(inode)->u.s1.fragment_start_block, ++ (int) SQUASHFS_I(inode)->u.s1.fragment_size); ++ goto error_out; ++ } ++ bytes = i_size_read(inode) & (sblk->block_size - 1); ++ data_ptr = fragment->data + SQUASHFS_I(inode)->u.s1.fragment_offset; ++ } ++ ++ for (i = start_index; i <= end_index && bytes > 0; i++, ++ bytes -= PAGE_CACHE_SIZE, data_ptr += PAGE_CACHE_SIZE) { ++ struct page *push_page; ++ int avail = sparse ? 0 : min_t(unsigned int, bytes, PAGE_CACHE_SIZE); ++ ++ TRACE("bytes %d, i %d, available_bytes %d\n", bytes, i, avail); ++ ++ push_page = (i == page->index) ? page : ++ grab_cache_page_nowait(page->mapping, i); ++ ++ if (!push_page) ++ continue; ++ ++ if (PageUptodate(push_page)) ++ goto skip_page; ++ ++ pageaddr = kmap_atomic(push_page, KM_USER0); ++ memcpy(pageaddr, data_ptr, avail); ++ memset(pageaddr + avail, 0, PAGE_CACHE_SIZE - avail); ++ kunmap_atomic(pageaddr, KM_USER0); ++ flush_dcache_page(push_page); ++ SetPageUptodate(push_page); ++skip_page: ++ unlock_page(push_page); ++ if(i != page->index) ++ page_cache_release(push_page); ++ } ++ ++ if (SQUASHFS_I(inode)->u.s1.fragment_start_block == SQUASHFS_INVALID_BLK ++ || index < file_end) { ++ if (!sparse) ++ mutex_unlock(&msblk->read_page_mutex); ++ kfree(block_list); ++ } else ++ release_cached_fragment(msblk, fragment); ++ ++ return 0; ++ ++error_out: ++ SetPageError(page); ++out: ++ pageaddr = kmap_atomic(page, KM_USER0); ++ memset(pageaddr, 0, PAGE_CACHE_SIZE); ++ kunmap_atomic(pageaddr, KM_USER0); ++ flush_dcache_page(page); ++ if (!PageError(page)) ++ SetPageUptodate(page); ++ unlock_page(page); ++ ++ kfree(block_list); ++ return 0; ++} ++ ++ ++static int get_dir_index_using_offset(struct super_block *s, ++ long long *next_block, unsigned int *next_offset, ++ long long index_start, unsigned int index_offset, int i_count, ++ long long f_pos) ++{ ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ int i, length = 0; ++ struct squashfs_dir_index index; ++ ++ TRACE("Entered get_dir_index_using_offset, i_count %d, f_pos %d\n", ++ i_count, (unsigned int) f_pos); ++ ++ f_pos =- 3; ++ if (f_pos == 0) ++ goto finish; ++ ++ for (i = 0; i < i_count; i++) { ++ if (msblk->swap) { ++ struct squashfs_dir_index sindex; ++ squashfs_get_cached_block(s, &sindex, index_start, index_offset, ++ sizeof(sindex), &index_start, &index_offset); ++ SQUASHFS_SWAP_DIR_INDEX(&index, &sindex); ++ } else ++ squashfs_get_cached_block(s, &index, index_start, index_offset, ++ sizeof(index), &index_start, &index_offset); ++ ++ if (index.index > f_pos) ++ break; ++ ++ squashfs_get_cached_block(s, NULL, index_start, index_offset, ++ index.size + 1, &index_start, &index_offset); ++ ++ length = index.index; ++ *next_block = index.start_block + sblk->directory_table_start; ++ } ++ ++ *next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE; ++ ++finish: ++ return length + 3; ++} ++ ++ ++static int get_dir_index_using_name(struct super_block *s, ++ long long *next_block, unsigned int *next_offset, ++ long long index_start, unsigned int index_offset, int i_count, ++ const char *name, int size) ++{ ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ int i, length = 0; ++ struct squashfs_dir_index *index; ++ char *str; ++ ++ TRACE("Entered get_dir_index_using_name, i_count %d\n", i_count); ++ ++ str = kmalloc(sizeof(struct squashfs_dir_index) + ++ (SQUASHFS_NAME_LEN + 1) * 2, GFP_KERNEL); ++ if (str == NULL) { ++ ERROR("Failed to allocate squashfs_dir_index\n"); ++ goto failure; ++ } ++ ++ index = (struct squashfs_dir_index *) (str + SQUASHFS_NAME_LEN + 1); ++ strncpy(str, name, size); ++ str[size] = '\0'; ++ ++ for (i = 0; i < i_count; i++) { ++ if (msblk->swap) { ++ struct squashfs_dir_index sindex; ++ squashfs_get_cached_block(s, &sindex, index_start, index_offset, ++ sizeof(sindex), &index_start, &index_offset); ++ SQUASHFS_SWAP_DIR_INDEX(index, &sindex); ++ } else ++ squashfs_get_cached_block(s, index, index_start, index_offset, ++ sizeof(struct squashfs_dir_index), &index_start, &index_offset); ++ ++ squashfs_get_cached_block(s, index->name, index_start, index_offset, ++ index->size + 1, &index_start, &index_offset); ++ ++ index->name[index->size + 1] = '\0'; ++ ++ if (strcmp(index->name, str) > 0) ++ break; ++ ++ length = index->index; ++ *next_block = index->start_block + sblk->directory_table_start; ++ } ++ ++ *next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE; ++ kfree(str); ++ ++failure: ++ return length + 3; ++} ++ ++ ++static int squashfs_readdir(struct file *file, void *dirent, filldir_t filldir) ++{ ++ struct inode *i = file->f_dentry->d_inode; ++ struct squashfs_sb_info *msblk = i->i_sb->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ long long next_block = SQUASHFS_I(i)->start_block + ++ sblk->directory_table_start; ++ int next_offset = SQUASHFS_I(i)->offset, length = 0, dir_count; ++ struct squashfs_dir_header dirh; ++ struct squashfs_dir_entry *dire; ++ ++ TRACE("Entered squashfs_readdir [%llx:%x]\n", next_block, next_offset); ++ ++ dire = kmalloc(sizeof(struct squashfs_dir_entry) + ++ SQUASHFS_NAME_LEN + 1, GFP_KERNEL); ++ if (dire == NULL) { ++ ERROR("Failed to allocate squashfs_dir_entry\n"); ++ goto finish; ++ } ++ ++ while(file->f_pos < 3) { ++ char *name; ++ int size, i_ino; ++ ++ if(file->f_pos == 0) { ++ name = "."; ++ size = 1; ++ i_ino = i->i_ino; ++ } else { ++ name = ".."; ++ size = 2; ++ i_ino = SQUASHFS_I(i)->u.s2.parent_inode; ++ } ++ TRACE("Calling filldir(%x, %s, %d, %d, %d, %d)\n", ++ (unsigned int) dirent, name, size, (int) ++ file->f_pos, i_ino, squashfs_filetype_table[1]); ++ ++ if (filldir(dirent, name, size, file->f_pos, i_ino, ++ squashfs_filetype_table[1]) < 0) { ++ TRACE("Filldir returned less than 0\n"); ++ goto finish; ++ } ++ file->f_pos += size; ++ } ++ ++ length = get_dir_index_using_offset(i->i_sb, &next_block, &next_offset, ++ SQUASHFS_I(i)->u.s2.directory_index_start, ++ SQUASHFS_I(i)->u.s2.directory_index_offset, ++ SQUASHFS_I(i)->u.s2.directory_index_count, file->f_pos); ++ ++ while (length < i_size_read(i)) { ++ /* read directory header */ ++ if (msblk->swap) { ++ struct squashfs_dir_header sdirh; ++ ++ if (!squashfs_get_cached_block(i->i_sb, &sdirh, next_block, ++ next_offset, sizeof(sdirh), &next_block, &next_offset)) ++ goto failed_read; ++ ++ length += sizeof(sdirh); ++ SQUASHFS_SWAP_DIR_HEADER(&dirh, &sdirh); ++ } else { ++ if (!squashfs_get_cached_block(i->i_sb, &dirh, next_block, ++ next_offset, sizeof(dirh), &next_block, &next_offset)) ++ goto failed_read; ++ ++ length += sizeof(dirh); ++ } ++ ++ dir_count = dirh.count + 1; ++ while (dir_count--) { ++ if (msblk->swap) { ++ struct squashfs_dir_entry sdire; ++ if (!squashfs_get_cached_block(i->i_sb, &sdire, next_block, ++ next_offset, sizeof(sdire), &next_block, &next_offset)) ++ goto failed_read; ++ ++ length += sizeof(sdire); ++ SQUASHFS_SWAP_DIR_ENTRY(dire, &sdire); ++ } else { ++ if (!squashfs_get_cached_block(i->i_sb, dire, next_block, ++ next_offset, sizeof(*dire), &next_block, &next_offset)) ++ goto failed_read; ++ ++ length += sizeof(*dire); ++ } ++ ++ if (!squashfs_get_cached_block(i->i_sb, dire->name, next_block, ++ next_offset, dire->size + 1, &next_block, &next_offset)) ++ goto failed_read; ++ ++ length += dire->size + 1; ++ ++ if (file->f_pos >= length) ++ continue; ++ ++ dire->name[dire->size + 1] = '\0'; ++ ++ TRACE("Calling filldir(%x, %s, %d, %d, %x:%x, %d, %d)\n", ++ (unsigned int) dirent, dire->name, dire->size + 1, ++ (int) file->f_pos, dirh.start_block, dire->offset, ++ dirh.inode_number + dire->inode_number, ++ squashfs_filetype_table[dire->type]); ++ ++ if (filldir(dirent, dire->name, dire->size + 1, file->f_pos, ++ dirh.inode_number + dire->inode_number, ++ squashfs_filetype_table[dire->type]) < 0) { ++ TRACE("Filldir returned less than 0\n"); ++ goto finish; ++ } ++ file->f_pos = length; ++ } ++ } ++ ++finish: ++ kfree(dire); ++ return 0; ++ ++failed_read: ++ ERROR("Unable to read directory block [%llx:%x]\n", next_block, ++ next_offset); ++ kfree(dire); ++ return 0; ++} ++ ++ ++static struct dentry *squashfs_lookup(struct inode *i, struct dentry *dentry, ++ struct nameidata *nd) ++{ ++ const unsigned char *name = dentry->d_name.name; ++ int len = dentry->d_name.len; ++ struct inode *inode = NULL; ++ struct squashfs_sb_info *msblk = i->i_sb->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ long long next_block = SQUASHFS_I(i)->start_block + ++ sblk->directory_table_start; ++ int next_offset = SQUASHFS_I(i)->offset, length = 0, dir_count; ++ struct squashfs_dir_header dirh; ++ struct squashfs_dir_entry *dire; ++ ++ TRACE("Entered squashfs_lookup [%llx:%x]\n", next_block, next_offset); ++ ++ dire = kmalloc(sizeof(struct squashfs_dir_entry) + ++ SQUASHFS_NAME_LEN + 1, GFP_KERNEL); ++ if (dire == NULL) { ++ ERROR("Failed to allocate squashfs_dir_entry\n"); ++ goto exit_lookup; ++ } ++ ++ if (len > SQUASHFS_NAME_LEN) ++ goto exit_lookup; ++ ++ length = get_dir_index_using_name(i->i_sb, &next_block, &next_offset, ++ SQUASHFS_I(i)->u.s2.directory_index_start, ++ SQUASHFS_I(i)->u.s2.directory_index_offset, ++ SQUASHFS_I(i)->u.s2.directory_index_count, name, len); ++ ++ while (length < i_size_read(i)) { ++ /* read directory header */ ++ if (msblk->swap) { ++ struct squashfs_dir_header sdirh; ++ if (!squashfs_get_cached_block(i->i_sb, &sdirh, next_block, ++ next_offset, sizeof(sdirh), &next_block, &next_offset)) ++ goto failed_read; ++ ++ length += sizeof(sdirh); ++ SQUASHFS_SWAP_DIR_HEADER(&dirh, &sdirh); ++ } else { ++ if (!squashfs_get_cached_block(i->i_sb, &dirh, next_block, ++ next_offset, sizeof(dirh), &next_block, &next_offset)) ++ goto failed_read; ++ ++ length += sizeof(dirh); ++ } ++ ++ dir_count = dirh.count + 1; ++ while (dir_count--) { ++ if (msblk->swap) { ++ struct squashfs_dir_entry sdire; ++ if (!squashfs_get_cached_block(i->i_sb, &sdire, next_block, ++ next_offset, sizeof(sdire), &next_block, &next_offset)) ++ goto failed_read; ++ ++ length += sizeof(sdire); ++ SQUASHFS_SWAP_DIR_ENTRY(dire, &sdire); ++ } else { ++ if (!squashfs_get_cached_block(i->i_sb, dire, next_block, ++ next_offset, sizeof(*dire), &next_block, &next_offset)) ++ goto failed_read; ++ ++ length += sizeof(*dire); ++ } ++ ++ if (!squashfs_get_cached_block(i->i_sb, dire->name, next_block, ++ next_offset, dire->size + 1, &next_block, &next_offset)) ++ goto failed_read; ++ ++ length += dire->size + 1; ++ ++ if (name[0] < dire->name[0]) ++ goto exit_lookup; ++ ++ if ((len == dire->size + 1) && !strncmp(name, dire->name, len)) { ++ squashfs_inode_t ino = SQUASHFS_MKINODE(dirh.start_block, ++ dire->offset); ++ ++ TRACE("calling squashfs_iget for directory entry %s, inode" ++ " %x:%x, %d\n", name, dirh.start_block, dire->offset, ++ dirh.inode_number + dire->inode_number); ++ ++ inode = squashfs_iget(i->i_sb, ino, dirh.inode_number + dire->inode_number); ++ ++ goto exit_lookup; ++ } ++ } ++ } ++ ++exit_lookup: ++ kfree(dire); ++ if (inode) ++ return d_splice_alias(inode, dentry); ++ d_add(dentry, inode); ++ return ERR_PTR(0); ++ ++failed_read: ++ ERROR("Unable to read directory block [%llx:%x]\n", next_block, ++ next_offset); ++ goto exit_lookup; ++} ++ ++ ++static int squashfs_remount(struct super_block *s, int *flags, char *data) ++{ ++ *flags |= MS_RDONLY; ++ return 0; ++} ++ ++ ++static void squashfs_put_super(struct super_block *s) ++{ ++ int i; ++ ++ if (s->s_fs_info) { ++ struct squashfs_sb_info *sbi = s->s_fs_info; ++ if (sbi->block_cache) ++ for (i = 0; i < squashfs_cached_blks; i++) ++ if (sbi->block_cache[i].block != SQUASHFS_INVALID_BLK) ++ vfree(sbi->block_cache[i].data); ++ if (sbi->fragment) ++ for (i = 0; i < SQUASHFS_CACHED_FRAGMENTS; i++) ++ vfree(sbi->fragment[i].data); ++ kfree(sbi->fragment); ++ kfree(sbi->block_cache); ++ vfree(sbi->read_page); ++ kfree(sbi->uid); ++ kfree(sbi->fragment_index); ++ kfree(sbi->fragment_index_2); ++ kfree(sbi->meta_index); ++ vfree(sbi->stream.workspace); ++ kfree(s->s_fs_info); ++ s->s_fs_info = NULL; ++ } ++} ++ ++ ++static int squashfs_get_sb(struct file_system_type *fs_type, int flags, ++ const char *dev_name, void *data, struct vfsmount *mnt) ++{ ++ return get_sb_bdev(fs_type, flags, dev_name, data, squashfs_fill_super, ++ mnt); ++} ++ ++ ++static int __init init_squashfs_fs(void) ++{ ++ int err = init_inodecache(); ++ if (err) ++ goto out; ++ ++ printk(KERN_INFO "squashfs: version 3.3 (2007/10/31) " ++ "Phillip Lougher\n"); ++ ++ err = register_filesystem(&squashfs_fs_type); ++ if (err) ++ destroy_inodecache(); ++ ++out: ++ return err; ++} ++ ++ ++static void __exit exit_squashfs_fs(void) ++{ ++ unregister_filesystem(&squashfs_fs_type); ++ destroy_inodecache(); ++} ++ ++ ++static struct kmem_cache * squashfs_inode_cachep; ++ ++ ++static struct inode *squashfs_alloc_inode(struct super_block *sb) ++{ ++ struct squashfs_inode_info *ei; ++ ei = kmem_cache_alloc(squashfs_inode_cachep, GFP_KERNEL); ++ return ei ? &ei->vfs_inode : NULL; ++} ++ ++ ++static void squashfs_destroy_inode(struct inode *inode) ++{ ++ kmem_cache_free(squashfs_inode_cachep, SQUASHFS_I(inode)); ++} ++ ++ ++static void init_once(struct kmem_cache *cachep, void *foo) ++{ ++ struct squashfs_inode_info *ei = foo; ++ ++ inode_init_once(&ei->vfs_inode); ++} ++ ++ ++static int __init init_inodecache(void) ++{ ++ squashfs_inode_cachep = kmem_cache_create("squashfs_inode_cache", ++ sizeof(struct squashfs_inode_info), 0, ++ SLAB_HWCACHE_ALIGN|SLAB_RECLAIM_ACCOUNT, init_once); ++ if (squashfs_inode_cachep == NULL) ++ return -ENOMEM; ++ return 0; ++} ++ ++ ++static void destroy_inodecache(void) ++{ ++ kmem_cache_destroy(squashfs_inode_cachep); ++} ++ ++ ++module_init(init_squashfs_fs); ++module_exit(exit_squashfs_fs); ++MODULE_DESCRIPTION("squashfs 3.2-r2-CVS, a compressed read-only filesystem"); ++MODULE_AUTHOR("Phillip Lougher "); ++MODULE_LICENSE("GPL"); +diff -x .gitignore -Nurp linux-2.6.24/fs/squashfs/Makefile linux-2.6.24-squashfs3.3/fs/squashfs/Makefile +--- linux-2.6.24/fs/squashfs/Makefile 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.24-squashfs3.3/fs/squashfs/Makefile 2005-11-20 14:31:00.000000000 +0000 +@@ -0,0 +1,7 @@ ++# ++# Makefile for the linux squashfs routines. ++# ++ ++obj-$(CONFIG_SQUASHFS) += squashfs.o ++squashfs-y += inode.o ++squashfs-y += squashfs2_0.o +diff -x .gitignore -Nurp linux-2.6.24/fs/squashfs/squashfs2_0.c linux-2.6.24-squashfs3.3/fs/squashfs/squashfs2_0.c +--- linux-2.6.24/fs/squashfs/squashfs2_0.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.24-squashfs3.3/fs/squashfs/squashfs2_0.c 2007-10-25 00:43:59.000000000 +0100 +@@ -0,0 +1,740 @@ ++/* ++ * Squashfs - a compressed read only filesystem for Linux ++ * ++ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007 ++ * Phillip Lougher ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version 2, ++ * or (at your option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ * ++ * squashfs2_0.c ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include "squashfs.h" ++static int squashfs_readdir_2(struct file *file, void *dirent, filldir_t filldir); ++static struct dentry *squashfs_lookup_2(struct inode *, struct dentry *, ++ struct nameidata *); ++ ++static struct file_operations squashfs_dir_ops_2 = { ++ .read = generic_read_dir, ++ .readdir = squashfs_readdir_2 ++}; ++ ++static struct inode_operations squashfs_dir_inode_ops_2 = { ++ .lookup = squashfs_lookup_2 ++}; ++ ++static unsigned char squashfs_filetype_table[] = { ++ DT_UNKNOWN, DT_DIR, DT_REG, DT_LNK, DT_BLK, DT_CHR, DT_FIFO, DT_SOCK ++}; ++ ++static int read_fragment_index_table_2(struct super_block *s) ++{ ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ ++ if (!(msblk->fragment_index_2 = kmalloc(SQUASHFS_FRAGMENT_INDEX_BYTES_2 ++ (sblk->fragments), GFP_KERNEL))) { ++ ERROR("Failed to allocate uid/gid table\n"); ++ return 0; ++ } ++ ++ if (SQUASHFS_FRAGMENT_INDEX_BYTES_2(sblk->fragments) && ++ !squashfs_read_data(s, (char *) ++ msblk->fragment_index_2, ++ sblk->fragment_table_start, ++ SQUASHFS_FRAGMENT_INDEX_BYTES_2 ++ (sblk->fragments) | ++ SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, SQUASHFS_FRAGMENT_INDEX_BYTES_2(sblk->fragments))) { ++ ERROR("unable to read fragment index table\n"); ++ return 0; ++ } ++ ++ if (msblk->swap) { ++ int i; ++ unsigned int fragment; ++ ++ for (i = 0; i < SQUASHFS_FRAGMENT_INDEXES_2(sblk->fragments); ++ i++) { ++ SQUASHFS_SWAP_FRAGMENT_INDEXES_2((&fragment), ++ &msblk->fragment_index_2[i], 1); ++ msblk->fragment_index_2[i] = fragment; ++ } ++ } ++ ++ return 1; ++} ++ ++ ++static int get_fragment_location_2(struct super_block *s, unsigned int fragment, ++ long long *fragment_start_block, ++ unsigned int *fragment_size) ++{ ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ long long start_block = ++ msblk->fragment_index_2[SQUASHFS_FRAGMENT_INDEX_2(fragment)]; ++ int offset = SQUASHFS_FRAGMENT_INDEX_OFFSET_2(fragment); ++ struct squashfs_fragment_entry_2 fragment_entry; ++ ++ if (msblk->swap) { ++ struct squashfs_fragment_entry_2 sfragment_entry; ++ ++ if (!squashfs_get_cached_block(s, (char *) &sfragment_entry, ++ start_block, offset, ++ sizeof(sfragment_entry), &start_block, ++ &offset)) ++ goto out; ++ SQUASHFS_SWAP_FRAGMENT_ENTRY_2(&fragment_entry, &sfragment_entry); ++ } else ++ if (!squashfs_get_cached_block(s, (char *) &fragment_entry, ++ start_block, offset, ++ sizeof(fragment_entry), &start_block, ++ &offset)) ++ goto out; ++ ++ *fragment_start_block = fragment_entry.start_block; ++ *fragment_size = fragment_entry.size; ++ ++ return 1; ++ ++out: ++ return 0; ++} ++ ++ ++static void squashfs_new_inode(struct squashfs_sb_info *msblk, struct inode *i, ++ struct squashfs_base_inode_header_2 *inodeb, unsigned int ino) ++{ ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ ++ i->i_ino = ino; ++ i->i_mtime.tv_sec = sblk->mkfs_time; ++ i->i_atime.tv_sec = sblk->mkfs_time; ++ i->i_ctime.tv_sec = sblk->mkfs_time; ++ i->i_uid = msblk->uid[inodeb->uid]; ++ i->i_mode = inodeb->mode; ++ i->i_nlink = 1; ++ i->i_size = 0; ++ if (inodeb->guid == SQUASHFS_GUIDS) ++ i->i_gid = i->i_uid; ++ else ++ i->i_gid = msblk->guid[inodeb->guid]; ++} ++ ++ ++static int squashfs_read_inode_2(struct inode *i, squashfs_inode_t inode) ++{ ++ struct super_block *s = i->i_sb; ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ unsigned int block = SQUASHFS_INODE_BLK(inode) + ++ sblk->inode_table_start; ++ unsigned int offset = SQUASHFS_INODE_OFFSET(inode); ++ unsigned int ino = SQUASHFS_MK_VFS_INODE(block - ++ sblk->inode_table_start, offset); ++ long long next_block; ++ unsigned int next_offset; ++ union squashfs_inode_header_2 id, sid; ++ struct squashfs_base_inode_header_2 *inodeb = &id.base, ++ *sinodeb = &sid.base; ++ ++ TRACE("Entered squashfs_read_inode_2\n"); ++ ++ if (msblk->swap) { ++ if (!squashfs_get_cached_block(s, (char *) sinodeb, block, ++ offset, sizeof(*sinodeb), &next_block, ++ &next_offset)) ++ goto failed_read; ++ SQUASHFS_SWAP_BASE_INODE_HEADER_2(inodeb, sinodeb, ++ sizeof(*sinodeb)); ++ } else ++ if (!squashfs_get_cached_block(s, (char *) inodeb, block, ++ offset, sizeof(*inodeb), &next_block, ++ &next_offset)) ++ goto failed_read; ++ ++ squashfs_new_inode(msblk, i, inodeb, ino); ++ ++ switch(inodeb->inode_type) { ++ case SQUASHFS_FILE_TYPE: { ++ struct squashfs_reg_inode_header_2 *inodep = &id.reg; ++ struct squashfs_reg_inode_header_2 *sinodep = &sid.reg; ++ long long frag_blk; ++ unsigned int frag_size = 0; ++ ++ if (msblk->swap) { ++ if (!squashfs_get_cached_block(s, (char *) ++ sinodep, block, offset, ++ sizeof(*sinodep), &next_block, ++ &next_offset)) ++ goto failed_read; ++ SQUASHFS_SWAP_REG_INODE_HEADER_2(inodep, sinodep); ++ } else ++ if (!squashfs_get_cached_block(s, (char *) ++ inodep, block, offset, ++ sizeof(*inodep), &next_block, ++ &next_offset)) ++ goto failed_read; ++ ++ frag_blk = SQUASHFS_INVALID_BLK; ++ if (inodep->fragment != SQUASHFS_INVALID_FRAG && ++ !get_fragment_location_2(s, ++ inodep->fragment, &frag_blk, &frag_size)) ++ goto failed_read; ++ ++ i->i_size = inodep->file_size; ++ i->i_fop = &generic_ro_fops; ++ i->i_mode |= S_IFREG; ++ i->i_mtime.tv_sec = inodep->mtime; ++ i->i_atime.tv_sec = inodep->mtime; ++ i->i_ctime.tv_sec = inodep->mtime; ++ i->i_blocks = ((i->i_size - 1) >> 9) + 1; ++ SQUASHFS_I(i)->u.s1.fragment_start_block = frag_blk; ++ SQUASHFS_I(i)->u.s1.fragment_size = frag_size; ++ SQUASHFS_I(i)->u.s1.fragment_offset = inodep->offset; ++ SQUASHFS_I(i)->start_block = inodep->start_block; ++ SQUASHFS_I(i)->u.s1.block_list_start = next_block; ++ SQUASHFS_I(i)->offset = next_offset; ++ i->i_data.a_ops = &squashfs_aops; ++ ++ TRACE("File inode %x:%x, start_block %x, " ++ "block_list_start %llx, offset %x\n", ++ SQUASHFS_INODE_BLK(inode), offset, ++ inodep->start_block, next_block, ++ next_offset); ++ break; ++ } ++ case SQUASHFS_DIR_TYPE: { ++ struct squashfs_dir_inode_header_2 *inodep = &id.dir; ++ struct squashfs_dir_inode_header_2 *sinodep = &sid.dir; ++ ++ if (msblk->swap) { ++ if (!squashfs_get_cached_block(s, (char *) ++ sinodep, block, offset, ++ sizeof(*sinodep), &next_block, ++ &next_offset)) ++ goto failed_read; ++ SQUASHFS_SWAP_DIR_INODE_HEADER_2(inodep, sinodep); ++ } else ++ if (!squashfs_get_cached_block(s, (char *) ++ inodep, block, offset, ++ sizeof(*inodep), &next_block, ++ &next_offset)) ++ goto failed_read; ++ ++ i->i_size = inodep->file_size; ++ i->i_op = &squashfs_dir_inode_ops_2; ++ i->i_fop = &squashfs_dir_ops_2; ++ i->i_mode |= S_IFDIR; ++ i->i_mtime.tv_sec = inodep->mtime; ++ i->i_atime.tv_sec = inodep->mtime; ++ i->i_ctime.tv_sec = inodep->mtime; ++ SQUASHFS_I(i)->start_block = inodep->start_block; ++ SQUASHFS_I(i)->offset = inodep->offset; ++ SQUASHFS_I(i)->u.s2.directory_index_count = 0; ++ SQUASHFS_I(i)->u.s2.parent_inode = 0; ++ ++ TRACE("Directory inode %x:%x, start_block %x, offset " ++ "%x\n", SQUASHFS_INODE_BLK(inode), ++ offset, inodep->start_block, ++ inodep->offset); ++ break; ++ } ++ case SQUASHFS_LDIR_TYPE: { ++ struct squashfs_ldir_inode_header_2 *inodep = &id.ldir; ++ struct squashfs_ldir_inode_header_2 *sinodep = &sid.ldir; ++ ++ if (msblk->swap) { ++ if (!squashfs_get_cached_block(s, (char *) ++ sinodep, block, offset, ++ sizeof(*sinodep), &next_block, ++ &next_offset)) ++ goto failed_read; ++ SQUASHFS_SWAP_LDIR_INODE_HEADER_2(inodep, ++ sinodep); ++ } else ++ if (!squashfs_get_cached_block(s, (char *) ++ inodep, block, offset, ++ sizeof(*inodep), &next_block, ++ &next_offset)) ++ goto failed_read; ++ ++ i->i_size = inodep->file_size; ++ i->i_op = &squashfs_dir_inode_ops_2; ++ i->i_fop = &squashfs_dir_ops_2; ++ i->i_mode |= S_IFDIR; ++ i->i_mtime.tv_sec = inodep->mtime; ++ i->i_atime.tv_sec = inodep->mtime; ++ i->i_ctime.tv_sec = inodep->mtime; ++ SQUASHFS_I(i)->start_block = inodep->start_block; ++ SQUASHFS_I(i)->offset = inodep->offset; ++ SQUASHFS_I(i)->u.s2.directory_index_start = next_block; ++ SQUASHFS_I(i)->u.s2.directory_index_offset = ++ next_offset; ++ SQUASHFS_I(i)->u.s2.directory_index_count = ++ inodep->i_count; ++ SQUASHFS_I(i)->u.s2.parent_inode = 0; ++ ++ TRACE("Long directory inode %x:%x, start_block %x, " ++ "offset %x\n", ++ SQUASHFS_INODE_BLK(inode), offset, ++ inodep->start_block, inodep->offset); ++ break; ++ } ++ case SQUASHFS_SYMLINK_TYPE: { ++ struct squashfs_symlink_inode_header_2 *inodep = ++ &id.symlink; ++ struct squashfs_symlink_inode_header_2 *sinodep = ++ &sid.symlink; ++ ++ if (msblk->swap) { ++ if (!squashfs_get_cached_block(s, (char *) ++ sinodep, block, offset, ++ sizeof(*sinodep), &next_block, ++ &next_offset)) ++ goto failed_read; ++ SQUASHFS_SWAP_SYMLINK_INODE_HEADER_2(inodep, ++ sinodep); ++ } else ++ if (!squashfs_get_cached_block(s, (char *) ++ inodep, block, offset, ++ sizeof(*inodep), &next_block, ++ &next_offset)) ++ goto failed_read; ++ ++ i->i_size = inodep->symlink_size; ++ i->i_op = &page_symlink_inode_operations; ++ i->i_data.a_ops = &squashfs_symlink_aops; ++ i->i_mode |= S_IFLNK; ++ SQUASHFS_I(i)->start_block = next_block; ++ SQUASHFS_I(i)->offset = next_offset; ++ ++ TRACE("Symbolic link inode %x:%x, start_block %llx, " ++ "offset %x\n", ++ SQUASHFS_INODE_BLK(inode), offset, ++ next_block, next_offset); ++ break; ++ } ++ case SQUASHFS_BLKDEV_TYPE: ++ case SQUASHFS_CHRDEV_TYPE: { ++ struct squashfs_dev_inode_header_2 *inodep = &id.dev; ++ struct squashfs_dev_inode_header_2 *sinodep = &sid.dev; ++ ++ if (msblk->swap) { ++ if (!squashfs_get_cached_block(s, (char *) ++ sinodep, block, offset, ++ sizeof(*sinodep), &next_block, ++ &next_offset)) ++ goto failed_read; ++ SQUASHFS_SWAP_DEV_INODE_HEADER_2(inodep, sinodep); ++ } else ++ if (!squashfs_get_cached_block(s, (char *) ++ inodep, block, offset, ++ sizeof(*inodep), &next_block, ++ &next_offset)) ++ goto failed_read; ++ ++ i->i_mode |= (inodeb->inode_type == ++ SQUASHFS_CHRDEV_TYPE) ? S_IFCHR : ++ S_IFBLK; ++ init_special_inode(i, i->i_mode, ++ old_decode_dev(inodep->rdev)); ++ ++ TRACE("Device inode %x:%x, rdev %x\n", ++ SQUASHFS_INODE_BLK(inode), offset, ++ inodep->rdev); ++ break; ++ } ++ case SQUASHFS_FIFO_TYPE: ++ case SQUASHFS_SOCKET_TYPE: { ++ ++ i->i_mode |= (inodeb->inode_type == SQUASHFS_FIFO_TYPE) ++ ? S_IFIFO : S_IFSOCK; ++ init_special_inode(i, i->i_mode, 0); ++ break; ++ } ++ default: ++ ERROR("Unknown inode type %d in squashfs_iget!\n", ++ inodeb->inode_type); ++ goto failed_read1; ++ } ++ ++ return 1; ++ ++failed_read: ++ ERROR("Unable to read inode [%x:%x]\n", block, offset); ++ ++failed_read1: ++ return 0; ++} ++ ++ ++static int get_dir_index_using_offset(struct super_block *s, long long ++ *next_block, unsigned int *next_offset, ++ long long index_start, ++ unsigned int index_offset, int i_count, ++ long long f_pos) ++{ ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ int i, length = 0; ++ struct squashfs_dir_index_2 index; ++ ++ TRACE("Entered get_dir_index_using_offset, i_count %d, f_pos %d\n", ++ i_count, (unsigned int) f_pos); ++ ++ if (f_pos == 0) ++ goto finish; ++ ++ for (i = 0; i < i_count; i++) { ++ if (msblk->swap) { ++ struct squashfs_dir_index_2 sindex; ++ squashfs_get_cached_block(s, (char *) &sindex, ++ index_start, index_offset, ++ sizeof(sindex), &index_start, ++ &index_offset); ++ SQUASHFS_SWAP_DIR_INDEX_2(&index, &sindex); ++ } else ++ squashfs_get_cached_block(s, (char *) &index, ++ index_start, index_offset, ++ sizeof(index), &index_start, ++ &index_offset); ++ ++ if (index.index > f_pos) ++ break; ++ ++ squashfs_get_cached_block(s, NULL, index_start, index_offset, ++ index.size + 1, &index_start, ++ &index_offset); ++ ++ length = index.index; ++ *next_block = index.start_block + sblk->directory_table_start; ++ } ++ ++ *next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE; ++ ++finish: ++ return length; ++} ++ ++ ++static int get_dir_index_using_name(struct super_block *s, long long ++ *next_block, unsigned int *next_offset, ++ long long index_start, ++ unsigned int index_offset, int i_count, ++ const char *name, int size) ++{ ++ struct squashfs_sb_info *msblk = s->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ int i, length = 0; ++ struct squashfs_dir_index_2 *index; ++ char *str; ++ ++ TRACE("Entered get_dir_index_using_name, i_count %d\n", i_count); ++ ++ if (!(str = kmalloc(sizeof(struct squashfs_dir_index) + ++ (SQUASHFS_NAME_LEN + 1) * 2, GFP_KERNEL))) { ++ ERROR("Failed to allocate squashfs_dir_index\n"); ++ goto failure; ++ } ++ ++ index = (struct squashfs_dir_index_2 *) (str + SQUASHFS_NAME_LEN + 1); ++ strncpy(str, name, size); ++ str[size] = '\0'; ++ ++ for (i = 0; i < i_count; i++) { ++ if (msblk->swap) { ++ struct squashfs_dir_index_2 sindex; ++ squashfs_get_cached_block(s, (char *) &sindex, ++ index_start, index_offset, ++ sizeof(sindex), &index_start, ++ &index_offset); ++ SQUASHFS_SWAP_DIR_INDEX_2(index, &sindex); ++ } else ++ squashfs_get_cached_block(s, (char *) index, ++ index_start, index_offset, ++ sizeof(struct squashfs_dir_index_2), ++ &index_start, &index_offset); ++ ++ squashfs_get_cached_block(s, index->name, index_start, ++ index_offset, index->size + 1, ++ &index_start, &index_offset); ++ ++ index->name[index->size + 1] = '\0'; ++ ++ if (strcmp(index->name, str) > 0) ++ break; ++ ++ length = index->index; ++ *next_block = index->start_block + sblk->directory_table_start; ++ } ++ ++ *next_offset = (length + *next_offset) % SQUASHFS_METADATA_SIZE; ++ kfree(str); ++failure: ++ return length; ++} ++ ++ ++static int squashfs_readdir_2(struct file *file, void *dirent, filldir_t filldir) ++{ ++ struct inode *i = file->f_dentry->d_inode; ++ struct squashfs_sb_info *msblk = i->i_sb->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ long long next_block = SQUASHFS_I(i)->start_block + ++ sblk->directory_table_start; ++ int next_offset = SQUASHFS_I(i)->offset, length = 0, ++ dir_count; ++ struct squashfs_dir_header_2 dirh; ++ struct squashfs_dir_entry_2 *dire; ++ ++ TRACE("Entered squashfs_readdir_2 [%llx:%x]\n", next_block, next_offset); ++ ++ if (!(dire = kmalloc(sizeof(struct squashfs_dir_entry) + ++ SQUASHFS_NAME_LEN + 1, GFP_KERNEL))) { ++ ERROR("Failed to allocate squashfs_dir_entry\n"); ++ goto finish; ++ } ++ ++ length = get_dir_index_using_offset(i->i_sb, &next_block, &next_offset, ++ SQUASHFS_I(i)->u.s2.directory_index_start, ++ SQUASHFS_I(i)->u.s2.directory_index_offset, ++ SQUASHFS_I(i)->u.s2.directory_index_count, ++ file->f_pos); ++ ++ while (length < i_size_read(i)) { ++ /* read directory header */ ++ if (msblk->swap) { ++ struct squashfs_dir_header_2 sdirh; ++ ++ if (!squashfs_get_cached_block(i->i_sb, (char *) &sdirh, ++ next_block, next_offset, sizeof(sdirh), ++ &next_block, &next_offset)) ++ goto failed_read; ++ ++ length += sizeof(sdirh); ++ SQUASHFS_SWAP_DIR_HEADER_2(&dirh, &sdirh); ++ } else { ++ if (!squashfs_get_cached_block(i->i_sb, (char *) &dirh, ++ next_block, next_offset, sizeof(dirh), ++ &next_block, &next_offset)) ++ goto failed_read; ++ ++ length += sizeof(dirh); ++ } ++ ++ dir_count = dirh.count + 1; ++ while (dir_count--) { ++ if (msblk->swap) { ++ struct squashfs_dir_entry_2 sdire; ++ if (!squashfs_get_cached_block(i->i_sb, (char *) ++ &sdire, next_block, next_offset, ++ sizeof(sdire), &next_block, ++ &next_offset)) ++ goto failed_read; ++ ++ length += sizeof(sdire); ++ SQUASHFS_SWAP_DIR_ENTRY_2(dire, &sdire); ++ } else { ++ if (!squashfs_get_cached_block(i->i_sb, (char *) ++ dire, next_block, next_offset, ++ sizeof(*dire), &next_block, ++ &next_offset)) ++ goto failed_read; ++ ++ length += sizeof(*dire); ++ } ++ ++ if (!squashfs_get_cached_block(i->i_sb, dire->name, ++ next_block, next_offset, ++ dire->size + 1, &next_block, ++ &next_offset)) ++ goto failed_read; ++ ++ length += dire->size + 1; ++ ++ if (file->f_pos >= length) ++ continue; ++ ++ dire->name[dire->size + 1] = '\0'; ++ ++ TRACE("Calling filldir(%x, %s, %d, %d, %x:%x, %d)\n", ++ (unsigned int) dirent, dire->name, ++ dire->size + 1, (int) file->f_pos, ++ dirh.start_block, dire->offset, ++ squashfs_filetype_table[dire->type]); ++ ++ if (filldir(dirent, dire->name, dire->size + 1, ++ file->f_pos, SQUASHFS_MK_VFS_INODE( ++ dirh.start_block, dire->offset), ++ squashfs_filetype_table[dire->type]) ++ < 0) { ++ TRACE("Filldir returned less than 0\n"); ++ goto finish; ++ } ++ file->f_pos = length; ++ } ++ } ++ ++finish: ++ kfree(dire); ++ return 0; ++ ++failed_read: ++ ERROR("Unable to read directory block [%llx:%x]\n", next_block, ++ next_offset); ++ kfree(dire); ++ return 0; ++} ++ ++ ++static struct dentry *squashfs_lookup_2(struct inode *i, struct dentry *dentry, ++ struct nameidata *nd) ++{ ++ const unsigned char *name = dentry->d_name.name; ++ int len = dentry->d_name.len; ++ struct inode *inode = NULL; ++ struct squashfs_sb_info *msblk = i->i_sb->s_fs_info; ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ long long next_block = SQUASHFS_I(i)->start_block + ++ sblk->directory_table_start; ++ int next_offset = SQUASHFS_I(i)->offset, length = 0, ++ dir_count; ++ struct squashfs_dir_header_2 dirh; ++ struct squashfs_dir_entry_2 *dire; ++ int sorted = sblk->s_major == 2 && sblk->s_minor >= 1; ++ ++ TRACE("Entered squashfs_lookup_2 [%llx:%x]\n", next_block, next_offset); ++ ++ if (!(dire = kmalloc(sizeof(struct squashfs_dir_entry) + ++ SQUASHFS_NAME_LEN + 1, GFP_KERNEL))) { ++ ERROR("Failed to allocate squashfs_dir_entry\n"); ++ goto exit_loop; ++ } ++ ++ if (len > SQUASHFS_NAME_LEN) ++ goto exit_loop; ++ ++ length = get_dir_index_using_name(i->i_sb, &next_block, &next_offset, ++ SQUASHFS_I(i)->u.s2.directory_index_start, ++ SQUASHFS_I(i)->u.s2.directory_index_offset, ++ SQUASHFS_I(i)->u.s2.directory_index_count, name, ++ len); ++ ++ while (length < i_size_read(i)) { ++ /* read directory header */ ++ if (msblk->swap) { ++ struct squashfs_dir_header_2 sdirh; ++ if (!squashfs_get_cached_block(i->i_sb, (char *) &sdirh, ++ next_block, next_offset, sizeof(sdirh), ++ &next_block, &next_offset)) ++ goto failed_read; ++ ++ length += sizeof(sdirh); ++ SQUASHFS_SWAP_DIR_HEADER_2(&dirh, &sdirh); ++ } else { ++ if (!squashfs_get_cached_block(i->i_sb, (char *) &dirh, ++ next_block, next_offset, sizeof(dirh), ++ &next_block, &next_offset)) ++ goto failed_read; ++ ++ length += sizeof(dirh); ++ } ++ ++ dir_count = dirh.count + 1; ++ while (dir_count--) { ++ if (msblk->swap) { ++ struct squashfs_dir_entry_2 sdire; ++ if (!squashfs_get_cached_block(i->i_sb, (char *) ++ &sdire, next_block,next_offset, ++ sizeof(sdire), &next_block, ++ &next_offset)) ++ goto failed_read; ++ ++ length += sizeof(sdire); ++ SQUASHFS_SWAP_DIR_ENTRY_2(dire, &sdire); ++ } else { ++ if (!squashfs_get_cached_block(i->i_sb, (char *) ++ dire, next_block,next_offset, ++ sizeof(*dire), &next_block, ++ &next_offset)) ++ goto failed_read; ++ ++ length += sizeof(*dire); ++ } ++ ++ if (!squashfs_get_cached_block(i->i_sb, dire->name, ++ next_block, next_offset, dire->size + 1, ++ &next_block, &next_offset)) ++ goto failed_read; ++ ++ length += dire->size + 1; ++ ++ if (sorted && name[0] < dire->name[0]) ++ goto exit_loop; ++ ++ if ((len == dire->size + 1) && !strncmp(name, ++ dire->name, len)) { ++ squashfs_inode_t ino = ++ SQUASHFS_MKINODE(dirh.start_block, ++ dire->offset); ++ unsigned int inode_number = SQUASHFS_MK_VFS_INODE(dirh.start_block, ++ dire->offset); ++ ++ TRACE("calling squashfs_iget for directory " ++ "entry %s, inode %x:%x, %lld\n", name, ++ dirh.start_block, dire->offset, ino); ++ ++ inode = squashfs_iget(i->i_sb, ino, inode_number); ++ ++ goto exit_loop; ++ } ++ } ++ } ++ ++exit_loop: ++ kfree(dire); ++ d_add(dentry, inode); ++ return ERR_PTR(0); ++ ++failed_read: ++ ERROR("Unable to read directory block [%llx:%x]\n", next_block, ++ next_offset); ++ goto exit_loop; ++} ++ ++ ++int squashfs_2_0_supported(struct squashfs_sb_info *msblk) ++{ ++ struct squashfs_super_block *sblk = &msblk->sblk; ++ ++ msblk->read_inode = squashfs_read_inode_2; ++ msblk->read_fragment_index_table = read_fragment_index_table_2; ++ ++ sblk->bytes_used = sblk->bytes_used_2; ++ sblk->uid_start = sblk->uid_start_2; ++ sblk->guid_start = sblk->guid_start_2; ++ sblk->inode_table_start = sblk->inode_table_start_2; ++ sblk->directory_table_start = sblk->directory_table_start_2; ++ sblk->fragment_table_start = sblk->fragment_table_start_2; ++ ++ return 1; ++} +diff -x .gitignore -Nurp linux-2.6.24/fs/squashfs/squashfs.h linux-2.6.24-squashfs3.3/fs/squashfs/squashfs.h +--- linux-2.6.24/fs/squashfs/squashfs.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.24-squashfs3.3/fs/squashfs/squashfs.h 2007-08-19 04:23:16.000000000 +0100 +@@ -0,0 +1,86 @@ ++/* ++ * Squashfs - a compressed read only filesystem for Linux ++ * ++ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007 ++ * Phillip Lougher ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version 2, ++ * or (at your option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ * ++ * squashfs.h ++ */ ++ ++#ifdef CONFIG_SQUASHFS_1_0_COMPATIBILITY ++#undef CONFIG_SQUASHFS_1_0_COMPATIBILITY ++#endif ++ ++#ifdef SQUASHFS_TRACE ++#define TRACE(s, args...) printk(KERN_NOTICE "SQUASHFS: "s, ## args) ++#else ++#define TRACE(s, args...) {} ++#endif ++ ++#define ERROR(s, args...) printk(KERN_ERR "SQUASHFS error: "s, ## args) ++ ++#define SERROR(s, args...) do { \ ++ if (!silent) \ ++ printk(KERN_ERR "SQUASHFS error: "s, ## args);\ ++ } while(0) ++ ++#define WARNING(s, args...) printk(KERN_WARNING "SQUASHFS: "s, ## args) ++ ++static inline struct squashfs_inode_info *SQUASHFS_I(struct inode *inode) ++{ ++ return list_entry(inode, struct squashfs_inode_info, vfs_inode); ++} ++ ++#if defined(CONFIG_SQUASHFS_1_0_COMPATIBILITY ) || defined(CONFIG_SQUASHFS_2_0_COMPATIBILITY) ++#define SQSH_EXTERN ++extern unsigned int squashfs_read_data(struct super_block *s, char *buffer, ++ long long index, unsigned int length, ++ long long *next_index, int srclength); ++extern int squashfs_get_cached_block(struct super_block *s, void *buffer, ++ long long block, unsigned int offset, ++ int length, long long *next_block, ++ unsigned int *next_offset); ++extern void release_cached_fragment(struct squashfs_sb_info *msblk, struct ++ squashfs_fragment_cache *fragment); ++extern struct squashfs_fragment_cache *get_cached_fragment(struct super_block ++ *s, long long start_block, ++ int length); ++extern struct inode *squashfs_iget(struct super_block *s, squashfs_inode_t inode, unsigned int inode_number); ++extern const struct address_space_operations squashfs_symlink_aops; ++extern const struct address_space_operations squashfs_aops; ++extern struct inode_operations squashfs_dir_inode_ops; ++#else ++#define SQSH_EXTERN static ++#endif ++ ++#ifdef CONFIG_SQUASHFS_1_0_COMPATIBILITY ++extern int squashfs_1_0_supported(struct squashfs_sb_info *msblk); ++#else ++static inline int squashfs_1_0_supported(struct squashfs_sb_info *msblk) ++{ ++ return 0; ++} ++#endif ++ ++#ifdef CONFIG_SQUASHFS_2_0_COMPATIBILITY ++extern int squashfs_2_0_supported(struct squashfs_sb_info *msblk); ++#else ++static inline int squashfs_2_0_supported(struct squashfs_sb_info *msblk) ++{ ++ return 0; ++} ++#endif +diff -x .gitignore -Nurp linux-2.6.24/include/linux/squashfs_fs.h linux-2.6.24-squashfs3.3/include/linux/squashfs_fs.h +--- linux-2.6.24/include/linux/squashfs_fs.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.24-squashfs3.3/include/linux/squashfs_fs.h 2007-11-01 03:50:57.000000000 +0000 +@@ -0,0 +1,935 @@ ++#ifndef SQUASHFS_FS ++#define SQUASHFS_FS ++ ++/* ++ * Squashfs ++ * ++ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007 ++ * Phillip Lougher ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version 2, ++ * or (at your option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ * ++ * squashfs_fs.h ++ */ ++ ++#ifndef CONFIG_SQUASHFS_2_0_COMPATIBILITY ++#define CONFIG_SQUASHFS_2_0_COMPATIBILITY ++#endif ++ ++#define SQUASHFS_CACHED_FRAGMENTS CONFIG_SQUASHFS_FRAGMENT_CACHE_SIZE ++#define SQUASHFS_MAJOR 3 ++#define SQUASHFS_MINOR 1 ++#define SQUASHFS_MAGIC 0x73717368 ++#define SQUASHFS_MAGIC_SWAP 0x68737173 ++#define SQUASHFS_START 0 ++ ++/* size of metadata (inode and directory) blocks */ ++#define SQUASHFS_METADATA_SIZE 8192 ++#define SQUASHFS_METADATA_LOG 13 ++ ++/* default size of data blocks */ ++#define SQUASHFS_FILE_SIZE 131072 ++#define SQUASHFS_FILE_LOG 17 ++ ++#define SQUASHFS_FILE_MAX_SIZE 1048576 ++ ++/* Max number of uids and gids */ ++#define SQUASHFS_UIDS 256 ++#define SQUASHFS_GUIDS 255 ++ ++/* Max length of filename (not 255) */ ++#define SQUASHFS_NAME_LEN 256 ++ ++#define SQUASHFS_INVALID ((long long) 0xffffffffffff) ++#define SQUASHFS_INVALID_FRAG ((unsigned int) 0xffffffff) ++#define SQUASHFS_INVALID_BLK ((long long) -1) ++#define SQUASHFS_USED_BLK ((long long) -2) ++ ++/* Filesystem flags */ ++#define SQUASHFS_NOI 0 ++#define SQUASHFS_NOD 1 ++#define SQUASHFS_CHECK 2 ++#define SQUASHFS_NOF 3 ++#define SQUASHFS_NO_FRAG 4 ++#define SQUASHFS_ALWAYS_FRAG 5 ++#define SQUASHFS_DUPLICATE 6 ++#define SQUASHFS_EXPORT 7 ++ ++#define SQUASHFS_BIT(flag, bit) ((flag >> bit) & 1) ++ ++#define SQUASHFS_UNCOMPRESSED_INODES(flags) SQUASHFS_BIT(flags, \ ++ SQUASHFS_NOI) ++ ++#define SQUASHFS_UNCOMPRESSED_DATA(flags) SQUASHFS_BIT(flags, \ ++ SQUASHFS_NOD) ++ ++#define SQUASHFS_UNCOMPRESSED_FRAGMENTS(flags) SQUASHFS_BIT(flags, \ ++ SQUASHFS_NOF) ++ ++#define SQUASHFS_NO_FRAGMENTS(flags) SQUASHFS_BIT(flags, \ ++ SQUASHFS_NO_FRAG) ++ ++#define SQUASHFS_ALWAYS_FRAGMENTS(flags) SQUASHFS_BIT(flags, \ ++ SQUASHFS_ALWAYS_FRAG) ++ ++#define SQUASHFS_DUPLICATES(flags) SQUASHFS_BIT(flags, \ ++ SQUASHFS_DUPLICATE) ++ ++#define SQUASHFS_EXPORTABLE(flags) SQUASHFS_BIT(flags, \ ++ SQUASHFS_EXPORT) ++ ++#define SQUASHFS_CHECK_DATA(flags) SQUASHFS_BIT(flags, \ ++ SQUASHFS_CHECK) ++ ++#define SQUASHFS_MKFLAGS(noi, nod, check_data, nof, no_frag, always_frag, \ ++ duplicate_checking, exortable) (noi | (nod << 1) | (check_data << 2) \ ++ | (nof << 3) | (no_frag << 4) | (always_frag << 5) | \ ++ (duplicate_checking << 6) | (exportable << 7)) ++ ++/* Max number of types and file types */ ++#define SQUASHFS_DIR_TYPE 1 ++#define SQUASHFS_FILE_TYPE 2 ++#define SQUASHFS_SYMLINK_TYPE 3 ++#define SQUASHFS_BLKDEV_TYPE 4 ++#define SQUASHFS_CHRDEV_TYPE 5 ++#define SQUASHFS_FIFO_TYPE 6 ++#define SQUASHFS_SOCKET_TYPE 7 ++#define SQUASHFS_LDIR_TYPE 8 ++#define SQUASHFS_LREG_TYPE 9 ++ ++/* 1.0 filesystem type definitions */ ++#define SQUASHFS_TYPES 5 ++#define SQUASHFS_IPC_TYPE 0 ++ ++/* Flag whether block is compressed or uncompressed, bit is set if block is ++ * uncompressed */ ++#define SQUASHFS_COMPRESSED_BIT (1 << 15) ++ ++#define SQUASHFS_COMPRESSED_SIZE(B) (((B) & ~SQUASHFS_COMPRESSED_BIT) ? \ ++ (B) & ~SQUASHFS_COMPRESSED_BIT : SQUASHFS_COMPRESSED_BIT) ++ ++#define SQUASHFS_COMPRESSED(B) (!((B) & SQUASHFS_COMPRESSED_BIT)) ++ ++#define SQUASHFS_COMPRESSED_BIT_BLOCK (1 << 24) ++ ++#define SQUASHFS_COMPRESSED_SIZE_BLOCK(B) ((B) & \ ++ ~SQUASHFS_COMPRESSED_BIT_BLOCK) ++ ++#define SQUASHFS_COMPRESSED_BLOCK(B) (!((B) & SQUASHFS_COMPRESSED_BIT_BLOCK)) ++ ++/* ++ * Inode number ops. Inodes consist of a compressed block number, and an ++ * uncompressed offset within that block ++ */ ++#define SQUASHFS_INODE_BLK(a) ((unsigned int) ((a) >> 16)) ++ ++#define SQUASHFS_INODE_OFFSET(a) ((unsigned int) ((a) & 0xffff)) ++ ++#define SQUASHFS_MKINODE(A, B) ((squashfs_inode_t)(((squashfs_inode_t) (A)\ ++ << 16) + (B))) ++ ++/* Compute 32 bit VFS inode number from squashfs inode number */ ++#define SQUASHFS_MK_VFS_INODE(a, b) ((unsigned int) (((a) << 8) + \ ++ ((b) >> 2) + 1)) ++/* XXX */ ++ ++/* Translate between VFS mode and squashfs mode */ ++#define SQUASHFS_MODE(a) ((a) & 0xfff) ++ ++/* fragment and fragment table defines */ ++#define SQUASHFS_FRAGMENT_BYTES(A) ((A) * sizeof(struct squashfs_fragment_entry)) ++ ++#define SQUASHFS_FRAGMENT_INDEX(A) (SQUASHFS_FRAGMENT_BYTES(A) / \ ++ SQUASHFS_METADATA_SIZE) ++ ++#define SQUASHFS_FRAGMENT_INDEX_OFFSET(A) (SQUASHFS_FRAGMENT_BYTES(A) % \ ++ SQUASHFS_METADATA_SIZE) ++ ++#define SQUASHFS_FRAGMENT_INDEXES(A) ((SQUASHFS_FRAGMENT_BYTES(A) + \ ++ SQUASHFS_METADATA_SIZE - 1) / \ ++ SQUASHFS_METADATA_SIZE) ++ ++#define SQUASHFS_FRAGMENT_INDEX_BYTES(A) (SQUASHFS_FRAGMENT_INDEXES(A) *\ ++ sizeof(long long)) ++ ++/* inode lookup table defines */ ++#define SQUASHFS_LOOKUP_BYTES(A) ((A) * sizeof(squashfs_inode_t)) ++ ++#define SQUASHFS_LOOKUP_BLOCK(A) (SQUASHFS_LOOKUP_BYTES(A) / \ ++ SQUASHFS_METADATA_SIZE) ++ ++#define SQUASHFS_LOOKUP_BLOCK_OFFSET(A) (SQUASHFS_LOOKUP_BYTES(A) % \ ++ SQUASHFS_METADATA_SIZE) ++ ++#define SQUASHFS_LOOKUP_BLOCKS(A) ((SQUASHFS_LOOKUP_BYTES(A) + \ ++ SQUASHFS_METADATA_SIZE - 1) / \ ++ SQUASHFS_METADATA_SIZE) ++ ++#define SQUASHFS_LOOKUP_BLOCK_BYTES(A) (SQUASHFS_LOOKUP_BLOCKS(A) *\ ++ sizeof(long long)) ++ ++/* cached data constants for filesystem */ ++#define SQUASHFS_CACHED_BLKS 8 ++ ++#define SQUASHFS_MAX_FILE_SIZE_LOG 64 ++ ++#define SQUASHFS_MAX_FILE_SIZE ((long long) 1 << \ ++ (SQUASHFS_MAX_FILE_SIZE_LOG - 2)) ++ ++#define SQUASHFS_MARKER_BYTE 0xff ++ ++/* meta index cache */ ++#define SQUASHFS_META_INDEXES (SQUASHFS_METADATA_SIZE / sizeof(unsigned int)) ++#define SQUASHFS_META_ENTRIES 31 ++#define SQUASHFS_META_NUMBER 8 ++#define SQUASHFS_SLOTS 4 ++ ++struct meta_entry { ++ long long data_block; ++ unsigned int index_block; ++ unsigned short offset; ++ unsigned short pad; ++}; ++ ++struct meta_index { ++ unsigned int inode_number; ++ unsigned int offset; ++ unsigned short entries; ++ unsigned short skip; ++ unsigned short locked; ++ unsigned short pad; ++ struct meta_entry meta_entry[SQUASHFS_META_ENTRIES]; ++}; ++ ++ ++/* ++ * definitions for structures on disk ++ */ ++ ++typedef long long squashfs_block_t; ++typedef long long squashfs_inode_t; ++ ++struct squashfs_super_block { ++ unsigned int s_magic; ++ unsigned int inodes; ++ unsigned int bytes_used_2; ++ unsigned int uid_start_2; ++ unsigned int guid_start_2; ++ unsigned int inode_table_start_2; ++ unsigned int directory_table_start_2; ++ unsigned int s_major:16; ++ unsigned int s_minor:16; ++ unsigned int block_size_1:16; ++ unsigned int block_log:16; ++ unsigned int flags:8; ++ unsigned int no_uids:8; ++ unsigned int no_guids:8; ++ unsigned int mkfs_time /* time of filesystem creation */; ++ squashfs_inode_t root_inode; ++ unsigned int block_size; ++ unsigned int fragments; ++ unsigned int fragment_table_start_2; ++ long long bytes_used; ++ long long uid_start; ++ long long guid_start; ++ long long inode_table_start; ++ long long directory_table_start; ++ long long fragment_table_start; ++ long long lookup_table_start; ++} __attribute__ ((packed)); ++ ++struct squashfs_dir_index { ++ unsigned int index; ++ unsigned int start_block; ++ unsigned char size; ++ unsigned char name[0]; ++} __attribute__ ((packed)); ++ ++#define SQUASHFS_BASE_INODE_HEADER \ ++ unsigned int inode_type:4; \ ++ unsigned int mode:12; \ ++ unsigned int uid:8; \ ++ unsigned int guid:8; \ ++ unsigned int mtime; \ ++ unsigned int inode_number; ++ ++struct squashfs_base_inode_header { ++ SQUASHFS_BASE_INODE_HEADER; ++} __attribute__ ((packed)); ++ ++struct squashfs_ipc_inode_header { ++ SQUASHFS_BASE_INODE_HEADER; ++ unsigned int nlink; ++} __attribute__ ((packed)); ++ ++struct squashfs_dev_inode_header { ++ SQUASHFS_BASE_INODE_HEADER; ++ unsigned int nlink; ++ unsigned short rdev; ++} __attribute__ ((packed)); ++ ++struct squashfs_symlink_inode_header { ++ SQUASHFS_BASE_INODE_HEADER; ++ unsigned int nlink; ++ unsigned short symlink_size; ++ char symlink[0]; ++} __attribute__ ((packed)); ++ ++struct squashfs_reg_inode_header { ++ SQUASHFS_BASE_INODE_HEADER; ++ squashfs_block_t start_block; ++ unsigned int fragment; ++ unsigned int offset; ++ unsigned int file_size; ++ unsigned short block_list[0]; ++} __attribute__ ((packed)); ++ ++struct squashfs_lreg_inode_header { ++ SQUASHFS_BASE_INODE_HEADER; ++ unsigned int nlink; ++ squashfs_block_t start_block; ++ unsigned int fragment; ++ unsigned int offset; ++ long long file_size; ++ unsigned short block_list[0]; ++} __attribute__ ((packed)); ++ ++struct squashfs_dir_inode_header { ++ SQUASHFS_BASE_INODE_HEADER; ++ unsigned int nlink; ++ unsigned int file_size:19; ++ unsigned int offset:13; ++ unsigned int start_block; ++ unsigned int parent_inode; ++} __attribute__ ((packed)); ++ ++struct squashfs_ldir_inode_header { ++ SQUASHFS_BASE_INODE_HEADER; ++ unsigned int nlink; ++ unsigned int file_size:27; ++ unsigned int offset:13; ++ unsigned int start_block; ++ unsigned int i_count:16; ++ unsigned int parent_inode; ++ struct squashfs_dir_index index[0]; ++} __attribute__ ((packed)); ++ ++union squashfs_inode_header { ++ struct squashfs_base_inode_header base; ++ struct squashfs_dev_inode_header dev; ++ struct squashfs_symlink_inode_header symlink; ++ struct squashfs_reg_inode_header reg; ++ struct squashfs_lreg_inode_header lreg; ++ struct squashfs_dir_inode_header dir; ++ struct squashfs_ldir_inode_header ldir; ++ struct squashfs_ipc_inode_header ipc; ++}; ++ ++struct squashfs_dir_entry { ++ unsigned int offset:13; ++ unsigned int type:3; ++ unsigned int size:8; ++ int inode_number:16; ++ char name[0]; ++} __attribute__ ((packed)); ++ ++struct squashfs_dir_header { ++ unsigned int count:8; ++ unsigned int start_block; ++ unsigned int inode_number; ++} __attribute__ ((packed)); ++ ++struct squashfs_fragment_entry { ++ long long start_block; ++ unsigned int size; ++ unsigned int pending; ++} __attribute__ ((packed)); ++ ++extern int squashfs_uncompress_block(void *d, int dstlen, void *s, int srclen); ++extern int squashfs_uncompress_init(void); ++extern int squashfs_uncompress_exit(void); ++ ++/* ++ * macros to convert each packed bitfield structure from little endian to big ++ * endian and vice versa. These are needed when creating or using a filesystem ++ * on a machine with different byte ordering to the target architecture. ++ * ++ */ ++ ++#define SQUASHFS_SWAP_START \ ++ int bits;\ ++ int b_pos;\ ++ unsigned long long val;\ ++ unsigned char *s;\ ++ unsigned char *d; ++ ++#define SQUASHFS_SWAP_SUPER_BLOCK(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_super_block));\ ++ SQUASHFS_SWAP((s)->s_magic, d, 0, 32);\ ++ SQUASHFS_SWAP((s)->inodes, d, 32, 32);\ ++ SQUASHFS_SWAP((s)->bytes_used_2, d, 64, 32);\ ++ SQUASHFS_SWAP((s)->uid_start_2, d, 96, 32);\ ++ SQUASHFS_SWAP((s)->guid_start_2, d, 128, 32);\ ++ SQUASHFS_SWAP((s)->inode_table_start_2, d, 160, 32);\ ++ SQUASHFS_SWAP((s)->directory_table_start_2, d, 192, 32);\ ++ SQUASHFS_SWAP((s)->s_major, d, 224, 16);\ ++ SQUASHFS_SWAP((s)->s_minor, d, 240, 16);\ ++ SQUASHFS_SWAP((s)->block_size_1, d, 256, 16);\ ++ SQUASHFS_SWAP((s)->block_log, d, 272, 16);\ ++ SQUASHFS_SWAP((s)->flags, d, 288, 8);\ ++ SQUASHFS_SWAP((s)->no_uids, d, 296, 8);\ ++ SQUASHFS_SWAP((s)->no_guids, d, 304, 8);\ ++ SQUASHFS_SWAP((s)->mkfs_time, d, 312, 32);\ ++ SQUASHFS_SWAP((s)->root_inode, d, 344, 64);\ ++ SQUASHFS_SWAP((s)->block_size, d, 408, 32);\ ++ SQUASHFS_SWAP((s)->fragments, d, 440, 32);\ ++ SQUASHFS_SWAP((s)->fragment_table_start_2, d, 472, 32);\ ++ SQUASHFS_SWAP((s)->bytes_used, d, 504, 64);\ ++ SQUASHFS_SWAP((s)->uid_start, d, 568, 64);\ ++ SQUASHFS_SWAP((s)->guid_start, d, 632, 64);\ ++ SQUASHFS_SWAP((s)->inode_table_start, d, 696, 64);\ ++ SQUASHFS_SWAP((s)->directory_table_start, d, 760, 64);\ ++ SQUASHFS_SWAP((s)->fragment_table_start, d, 824, 64);\ ++ SQUASHFS_SWAP((s)->lookup_table_start, d, 888, 64);\ ++} ++ ++#define SQUASHFS_SWAP_BASE_INODE_CORE(s, d, n)\ ++ SQUASHFS_MEMSET(s, d, n);\ ++ SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\ ++ SQUASHFS_SWAP((s)->mode, d, 4, 12);\ ++ SQUASHFS_SWAP((s)->uid, d, 16, 8);\ ++ SQUASHFS_SWAP((s)->guid, d, 24, 8);\ ++ SQUASHFS_SWAP((s)->mtime, d, 32, 32);\ ++ SQUASHFS_SWAP((s)->inode_number, d, 64, 32); ++ ++#define SQUASHFS_SWAP_BASE_INODE_HEADER(s, d, n) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, n)\ ++} ++ ++#define SQUASHFS_SWAP_IPC_INODE_HEADER(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ ++ sizeof(struct squashfs_ipc_inode_header))\ ++ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ ++} ++ ++#define SQUASHFS_SWAP_DEV_INODE_HEADER(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ ++ sizeof(struct squashfs_dev_inode_header)); \ ++ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ ++ SQUASHFS_SWAP((s)->rdev, d, 128, 16);\ ++} ++ ++#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ ++ sizeof(struct squashfs_symlink_inode_header));\ ++ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ ++ SQUASHFS_SWAP((s)->symlink_size, d, 128, 16);\ ++} ++ ++#define SQUASHFS_SWAP_REG_INODE_HEADER(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ ++ sizeof(struct squashfs_reg_inode_header));\ ++ SQUASHFS_SWAP((s)->start_block, d, 96, 64);\ ++ SQUASHFS_SWAP((s)->fragment, d, 160, 32);\ ++ SQUASHFS_SWAP((s)->offset, d, 192, 32);\ ++ SQUASHFS_SWAP((s)->file_size, d, 224, 32);\ ++} ++ ++#define SQUASHFS_SWAP_LREG_INODE_HEADER(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ ++ sizeof(struct squashfs_lreg_inode_header));\ ++ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ ++ SQUASHFS_SWAP((s)->start_block, d, 128, 64);\ ++ SQUASHFS_SWAP((s)->fragment, d, 192, 32);\ ++ SQUASHFS_SWAP((s)->offset, d, 224, 32);\ ++ SQUASHFS_SWAP((s)->file_size, d, 256, 64);\ ++} ++ ++#define SQUASHFS_SWAP_DIR_INODE_HEADER(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ ++ sizeof(struct squashfs_dir_inode_header));\ ++ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ ++ SQUASHFS_SWAP((s)->file_size, d, 128, 19);\ ++ SQUASHFS_SWAP((s)->offset, d, 147, 13);\ ++ SQUASHFS_SWAP((s)->start_block, d, 160, 32);\ ++ SQUASHFS_SWAP((s)->parent_inode, d, 192, 32);\ ++} ++ ++#define SQUASHFS_SWAP_LDIR_INODE_HEADER(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE(s, d, \ ++ sizeof(struct squashfs_ldir_inode_header));\ ++ SQUASHFS_SWAP((s)->nlink, d, 96, 32);\ ++ SQUASHFS_SWAP((s)->file_size, d, 128, 27);\ ++ SQUASHFS_SWAP((s)->offset, d, 155, 13);\ ++ SQUASHFS_SWAP((s)->start_block, d, 168, 32);\ ++ SQUASHFS_SWAP((s)->i_count, d, 200, 16);\ ++ SQUASHFS_SWAP((s)->parent_inode, d, 216, 32);\ ++} ++ ++#define SQUASHFS_SWAP_DIR_INDEX(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_index));\ ++ SQUASHFS_SWAP((s)->index, d, 0, 32);\ ++ SQUASHFS_SWAP((s)->start_block, d, 32, 32);\ ++ SQUASHFS_SWAP((s)->size, d, 64, 8);\ ++} ++ ++#define SQUASHFS_SWAP_DIR_HEADER(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_header));\ ++ SQUASHFS_SWAP((s)->count, d, 0, 8);\ ++ SQUASHFS_SWAP((s)->start_block, d, 8, 32);\ ++ SQUASHFS_SWAP((s)->inode_number, d, 40, 32);\ ++} ++ ++#define SQUASHFS_SWAP_DIR_ENTRY(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_entry));\ ++ SQUASHFS_SWAP((s)->offset, d, 0, 13);\ ++ SQUASHFS_SWAP((s)->type, d, 13, 3);\ ++ SQUASHFS_SWAP((s)->size, d, 16, 8);\ ++ SQUASHFS_SWAP((s)->inode_number, d, 24, 16);\ ++} ++ ++#define SQUASHFS_SWAP_FRAGMENT_ENTRY(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_fragment_entry));\ ++ SQUASHFS_SWAP((s)->start_block, d, 0, 64);\ ++ SQUASHFS_SWAP((s)->size, d, 64, 32);\ ++} ++ ++#define SQUASHFS_SWAP_INODE_T(s, d) SQUASHFS_SWAP_LONG_LONGS(s, d, 1) ++ ++#define SQUASHFS_SWAP_SHORTS(s, d, n) {\ ++ int entry;\ ++ int bit_position;\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_MEMSET(s, d, n * 2);\ ++ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \ ++ 16)\ ++ SQUASHFS_SWAP(s[entry], d, bit_position, 16);\ ++} ++ ++#define SQUASHFS_SWAP_INTS(s, d, n) {\ ++ int entry;\ ++ int bit_position;\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_MEMSET(s, d, n * 4);\ ++ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \ ++ 32)\ ++ SQUASHFS_SWAP(s[entry], d, bit_position, 32);\ ++} ++ ++#define SQUASHFS_SWAP_LONG_LONGS(s, d, n) {\ ++ int entry;\ ++ int bit_position;\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_MEMSET(s, d, n * 8);\ ++ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \ ++ 64)\ ++ SQUASHFS_SWAP(s[entry], d, bit_position, 64);\ ++} ++ ++#define SQUASHFS_SWAP_DATA(s, d, n, bits) {\ ++ int entry;\ ++ int bit_position;\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_MEMSET(s, d, n * bits / 8);\ ++ for(entry = 0, bit_position = 0; entry < n; entry++, bit_position += \ ++ bits)\ ++ SQUASHFS_SWAP(s[entry], d, bit_position, bits);\ ++} ++ ++#define SQUASHFS_SWAP_FRAGMENT_INDEXES(s, d, n) SQUASHFS_SWAP_LONG_LONGS(s, d, n) ++#define SQUASHFS_SWAP_LOOKUP_BLOCKS(s, d, n) SQUASHFS_SWAP_LONG_LONGS(s, d, n) ++ ++#ifdef CONFIG_SQUASHFS_1_0_COMPATIBILITY ++ ++struct squashfs_base_inode_header_1 { ++ unsigned int inode_type:4; ++ unsigned int mode:12; /* protection */ ++ unsigned int uid:4; /* index into uid table */ ++ unsigned int guid:4; /* index into guid table */ ++} __attribute__ ((packed)); ++ ++struct squashfs_ipc_inode_header_1 { ++ unsigned int inode_type:4; ++ unsigned int mode:12; /* protection */ ++ unsigned int uid:4; /* index into uid table */ ++ unsigned int guid:4; /* index into guid table */ ++ unsigned int type:4; ++ unsigned int offset:4; ++} __attribute__ ((packed)); ++ ++struct squashfs_dev_inode_header_1 { ++ unsigned int inode_type:4; ++ unsigned int mode:12; /* protection */ ++ unsigned int uid:4; /* index into uid table */ ++ unsigned int guid:4; /* index into guid table */ ++ unsigned short rdev; ++} __attribute__ ((packed)); ++ ++struct squashfs_symlink_inode_header_1 { ++ unsigned int inode_type:4; ++ unsigned int mode:12; /* protection */ ++ unsigned int uid:4; /* index into uid table */ ++ unsigned int guid:4; /* index into guid table */ ++ unsigned short symlink_size; ++ char symlink[0]; ++} __attribute__ ((packed)); ++ ++struct squashfs_reg_inode_header_1 { ++ unsigned int inode_type:4; ++ unsigned int mode:12; /* protection */ ++ unsigned int uid:4; /* index into uid table */ ++ unsigned int guid:4; /* index into guid table */ ++ unsigned int mtime; ++ unsigned int start_block; ++ unsigned int file_size:32; ++ unsigned short block_list[0]; ++} __attribute__ ((packed)); ++ ++struct squashfs_dir_inode_header_1 { ++ unsigned int inode_type:4; ++ unsigned int mode:12; /* protection */ ++ unsigned int uid:4; /* index into uid table */ ++ unsigned int guid:4; /* index into guid table */ ++ unsigned int file_size:19; ++ unsigned int offset:13; ++ unsigned int mtime; ++ unsigned int start_block:24; ++} __attribute__ ((packed)); ++ ++union squashfs_inode_header_1 { ++ struct squashfs_base_inode_header_1 base; ++ struct squashfs_dev_inode_header_1 dev; ++ struct squashfs_symlink_inode_header_1 symlink; ++ struct squashfs_reg_inode_header_1 reg; ++ struct squashfs_dir_inode_header_1 dir; ++ struct squashfs_ipc_inode_header_1 ipc; ++}; ++ ++#define SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, n) \ ++ SQUASHFS_MEMSET(s, d, n);\ ++ SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\ ++ SQUASHFS_SWAP((s)->mode, d, 4, 12);\ ++ SQUASHFS_SWAP((s)->uid, d, 16, 4);\ ++ SQUASHFS_SWAP((s)->guid, d, 20, 4); ++ ++#define SQUASHFS_SWAP_BASE_INODE_HEADER_1(s, d, n) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, n)\ ++} ++ ++#define SQUASHFS_SWAP_IPC_INODE_HEADER_1(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \ ++ sizeof(struct squashfs_ipc_inode_header_1));\ ++ SQUASHFS_SWAP((s)->type, d, 24, 4);\ ++ SQUASHFS_SWAP((s)->offset, d, 28, 4);\ ++} ++ ++#define SQUASHFS_SWAP_DEV_INODE_HEADER_1(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \ ++ sizeof(struct squashfs_dev_inode_header_1));\ ++ SQUASHFS_SWAP((s)->rdev, d, 24, 16);\ ++} ++ ++#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER_1(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \ ++ sizeof(struct squashfs_symlink_inode_header_1));\ ++ SQUASHFS_SWAP((s)->symlink_size, d, 24, 16);\ ++} ++ ++#define SQUASHFS_SWAP_REG_INODE_HEADER_1(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \ ++ sizeof(struct squashfs_reg_inode_header_1));\ ++ SQUASHFS_SWAP((s)->mtime, d, 24, 32);\ ++ SQUASHFS_SWAP((s)->start_block, d, 56, 32);\ ++ SQUASHFS_SWAP((s)->file_size, d, 88, 32);\ ++} ++ ++#define SQUASHFS_SWAP_DIR_INODE_HEADER_1(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE_1(s, d, \ ++ sizeof(struct squashfs_dir_inode_header_1));\ ++ SQUASHFS_SWAP((s)->file_size, d, 24, 19);\ ++ SQUASHFS_SWAP((s)->offset, d, 43, 13);\ ++ SQUASHFS_SWAP((s)->mtime, d, 56, 32);\ ++ SQUASHFS_SWAP((s)->start_block, d, 88, 24);\ ++} ++ ++#endif ++ ++#ifdef CONFIG_SQUASHFS_2_0_COMPATIBILITY ++ ++struct squashfs_dir_index_2 { ++ unsigned int index:27; ++ unsigned int start_block:29; ++ unsigned char size; ++ unsigned char name[0]; ++} __attribute__ ((packed)); ++ ++struct squashfs_base_inode_header_2 { ++ unsigned int inode_type:4; ++ unsigned int mode:12; /* protection */ ++ unsigned int uid:8; /* index into uid table */ ++ unsigned int guid:8; /* index into guid table */ ++} __attribute__ ((packed)); ++ ++struct squashfs_ipc_inode_header_2 { ++ unsigned int inode_type:4; ++ unsigned int mode:12; /* protection */ ++ unsigned int uid:8; /* index into uid table */ ++ unsigned int guid:8; /* index into guid table */ ++} __attribute__ ((packed)); ++ ++struct squashfs_dev_inode_header_2 { ++ unsigned int inode_type:4; ++ unsigned int mode:12; /* protection */ ++ unsigned int uid:8; /* index into uid table */ ++ unsigned int guid:8; /* index into guid table */ ++ unsigned short rdev; ++} __attribute__ ((packed)); ++ ++struct squashfs_symlink_inode_header_2 { ++ unsigned int inode_type:4; ++ unsigned int mode:12; /* protection */ ++ unsigned int uid:8; /* index into uid table */ ++ unsigned int guid:8; /* index into guid table */ ++ unsigned short symlink_size; ++ char symlink[0]; ++} __attribute__ ((packed)); ++ ++struct squashfs_reg_inode_header_2 { ++ unsigned int inode_type:4; ++ unsigned int mode:12; /* protection */ ++ unsigned int uid:8; /* index into uid table */ ++ unsigned int guid:8; /* index into guid table */ ++ unsigned int mtime; ++ unsigned int start_block; ++ unsigned int fragment; ++ unsigned int offset; ++ unsigned int file_size:32; ++ unsigned short block_list[0]; ++} __attribute__ ((packed)); ++ ++struct squashfs_dir_inode_header_2 { ++ unsigned int inode_type:4; ++ unsigned int mode:12; /* protection */ ++ unsigned int uid:8; /* index into uid table */ ++ unsigned int guid:8; /* index into guid table */ ++ unsigned int file_size:19; ++ unsigned int offset:13; ++ unsigned int mtime; ++ unsigned int start_block:24; ++} __attribute__ ((packed)); ++ ++struct squashfs_ldir_inode_header_2 { ++ unsigned int inode_type:4; ++ unsigned int mode:12; /* protection */ ++ unsigned int uid:8; /* index into uid table */ ++ unsigned int guid:8; /* index into guid table */ ++ unsigned int file_size:27; ++ unsigned int offset:13; ++ unsigned int mtime; ++ unsigned int start_block:24; ++ unsigned int i_count:16; ++ struct squashfs_dir_index_2 index[0]; ++} __attribute__ ((packed)); ++ ++union squashfs_inode_header_2 { ++ struct squashfs_base_inode_header_2 base; ++ struct squashfs_dev_inode_header_2 dev; ++ struct squashfs_symlink_inode_header_2 symlink; ++ struct squashfs_reg_inode_header_2 reg; ++ struct squashfs_dir_inode_header_2 dir; ++ struct squashfs_ldir_inode_header_2 ldir; ++ struct squashfs_ipc_inode_header_2 ipc; ++}; ++ ++struct squashfs_dir_header_2 { ++ unsigned int count:8; ++ unsigned int start_block:24; ++} __attribute__ ((packed)); ++ ++struct squashfs_dir_entry_2 { ++ unsigned int offset:13; ++ unsigned int type:3; ++ unsigned int size:8; ++ char name[0]; ++} __attribute__ ((packed)); ++ ++struct squashfs_fragment_entry_2 { ++ unsigned int start_block; ++ unsigned int size; ++} __attribute__ ((packed)); ++ ++#define SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, n)\ ++ SQUASHFS_MEMSET(s, d, n);\ ++ SQUASHFS_SWAP((s)->inode_type, d, 0, 4);\ ++ SQUASHFS_SWAP((s)->mode, d, 4, 12);\ ++ SQUASHFS_SWAP((s)->uid, d, 16, 8);\ ++ SQUASHFS_SWAP((s)->guid, d, 24, 8);\ ++ ++#define SQUASHFS_SWAP_BASE_INODE_HEADER_2(s, d, n) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, n)\ ++} ++ ++#define SQUASHFS_SWAP_IPC_INODE_HEADER_2(s, d) \ ++ SQUASHFS_SWAP_BASE_INODE_HEADER_2(s, d, sizeof(struct squashfs_ipc_inode_header_2)) ++ ++#define SQUASHFS_SWAP_DEV_INODE_HEADER_2(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \ ++ sizeof(struct squashfs_dev_inode_header_2)); \ ++ SQUASHFS_SWAP((s)->rdev, d, 32, 16);\ ++} ++ ++#define SQUASHFS_SWAP_SYMLINK_INODE_HEADER_2(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \ ++ sizeof(struct squashfs_symlink_inode_header_2));\ ++ SQUASHFS_SWAP((s)->symlink_size, d, 32, 16);\ ++} ++ ++#define SQUASHFS_SWAP_REG_INODE_HEADER_2(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \ ++ sizeof(struct squashfs_reg_inode_header_2));\ ++ SQUASHFS_SWAP((s)->mtime, d, 32, 32);\ ++ SQUASHFS_SWAP((s)->start_block, d, 64, 32);\ ++ SQUASHFS_SWAP((s)->fragment, d, 96, 32);\ ++ SQUASHFS_SWAP((s)->offset, d, 128, 32);\ ++ SQUASHFS_SWAP((s)->file_size, d, 160, 32);\ ++} ++ ++#define SQUASHFS_SWAP_DIR_INODE_HEADER_2(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \ ++ sizeof(struct squashfs_dir_inode_header_2));\ ++ SQUASHFS_SWAP((s)->file_size, d, 32, 19);\ ++ SQUASHFS_SWAP((s)->offset, d, 51, 13);\ ++ SQUASHFS_SWAP((s)->mtime, d, 64, 32);\ ++ SQUASHFS_SWAP((s)->start_block, d, 96, 24);\ ++} ++ ++#define SQUASHFS_SWAP_LDIR_INODE_HEADER_2(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_SWAP_BASE_INODE_CORE_2(s, d, \ ++ sizeof(struct squashfs_ldir_inode_header_2));\ ++ SQUASHFS_SWAP((s)->file_size, d, 32, 27);\ ++ SQUASHFS_SWAP((s)->offset, d, 59, 13);\ ++ SQUASHFS_SWAP((s)->mtime, d, 72, 32);\ ++ SQUASHFS_SWAP((s)->start_block, d, 104, 24);\ ++ SQUASHFS_SWAP((s)->i_count, d, 128, 16);\ ++} ++ ++#define SQUASHFS_SWAP_DIR_INDEX_2(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_index_2));\ ++ SQUASHFS_SWAP((s)->index, d, 0, 27);\ ++ SQUASHFS_SWAP((s)->start_block, d, 27, 29);\ ++ SQUASHFS_SWAP((s)->size, d, 56, 8);\ ++} ++#define SQUASHFS_SWAP_DIR_HEADER_2(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_header_2));\ ++ SQUASHFS_SWAP((s)->count, d, 0, 8);\ ++ SQUASHFS_SWAP((s)->start_block, d, 8, 24);\ ++} ++ ++#define SQUASHFS_SWAP_DIR_ENTRY_2(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_dir_entry_2));\ ++ SQUASHFS_SWAP((s)->offset, d, 0, 13);\ ++ SQUASHFS_SWAP((s)->type, d, 13, 3);\ ++ SQUASHFS_SWAP((s)->size, d, 16, 8);\ ++} ++ ++#define SQUASHFS_SWAP_FRAGMENT_ENTRY_2(s, d) {\ ++ SQUASHFS_SWAP_START\ ++ SQUASHFS_MEMSET(s, d, sizeof(struct squashfs_fragment_entry_2));\ ++ SQUASHFS_SWAP((s)->start_block, d, 0, 32);\ ++ SQUASHFS_SWAP((s)->size, d, 32, 32);\ ++} ++ ++#define SQUASHFS_SWAP_FRAGMENT_INDEXES_2(s, d, n) SQUASHFS_SWAP_INTS(s, d, n) ++ ++/* fragment and fragment table defines */ ++#define SQUASHFS_FRAGMENT_BYTES_2(A) (A * sizeof(struct squashfs_fragment_entry_2)) ++ ++#define SQUASHFS_FRAGMENT_INDEX_2(A) (SQUASHFS_FRAGMENT_BYTES_2(A) / \ ++ SQUASHFS_METADATA_SIZE) ++ ++#define SQUASHFS_FRAGMENT_INDEX_OFFSET_2(A) (SQUASHFS_FRAGMENT_BYTES_2(A) % \ ++ SQUASHFS_METADATA_SIZE) ++ ++#define SQUASHFS_FRAGMENT_INDEXES_2(A) ((SQUASHFS_FRAGMENT_BYTES_2(A) + \ ++ SQUASHFS_METADATA_SIZE - 1) / \ ++ SQUASHFS_METADATA_SIZE) ++ ++#define SQUASHFS_FRAGMENT_INDEX_BYTES_2(A) (SQUASHFS_FRAGMENT_INDEXES_2(A) *\ ++ sizeof(int)) ++ ++#endif ++ ++#ifdef __KERNEL__ ++ ++/* ++ * macros used to swap each structure entry, taking into account ++ * bitfields and different bitfield placing conventions on differing ++ * architectures ++ */ ++ ++#include ++ ++#ifdef __BIG_ENDIAN ++ /* convert from little endian to big endian */ ++#define SQUASHFS_SWAP(value, p, pos, tbits) _SQUASHFS_SWAP(value, p, pos, \ ++ tbits, b_pos) ++#else ++ /* convert from big endian to little endian */ ++#define SQUASHFS_SWAP(value, p, pos, tbits) _SQUASHFS_SWAP(value, p, pos, \ ++ tbits, 64 - tbits - b_pos) ++#endif ++ ++#define _SQUASHFS_SWAP(value, p, pos, tbits, SHIFT) {\ ++ b_pos = pos % 8;\ ++ val = 0;\ ++ s = (unsigned char *)p + (pos / 8);\ ++ d = ((unsigned char *) &val) + 7;\ ++ for(bits = 0; bits < (tbits + b_pos); bits += 8) \ ++ *d-- = *s++;\ ++ value = (val >> (SHIFT))/* & ((1 << tbits) - 1)*/;\ ++} ++ ++#define SQUASHFS_MEMSET(s, d, n) memset(s, 0, n); ++ ++#endif ++#endif +diff -x .gitignore -Nurp linux-2.6.24/include/linux/squashfs_fs_i.h linux-2.6.24-squashfs3.3/include/linux/squashfs_fs_i.h +--- linux-2.6.24/include/linux/squashfs_fs_i.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.24-squashfs3.3/include/linux/squashfs_fs_i.h 2007-08-19 04:24:08.000000000 +0100 +@@ -0,0 +1,45 @@ ++#ifndef SQUASHFS_FS_I ++#define SQUASHFS_FS_I ++/* ++ * Squashfs ++ * ++ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007 ++ * Phillip Lougher ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version 2, ++ * or (at your option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ * ++ * squashfs_fs_i.h ++ */ ++ ++struct squashfs_inode_info { ++ long long start_block; ++ unsigned int offset; ++ union { ++ struct { ++ long long fragment_start_block; ++ unsigned int fragment_size; ++ unsigned int fragment_offset; ++ long long block_list_start; ++ } s1; ++ struct { ++ long long directory_index_start; ++ unsigned int directory_index_offset; ++ unsigned int directory_index_count; ++ unsigned int parent_inode; ++ } s2; ++ } u; ++ struct inode vfs_inode; ++}; ++#endif +diff -x .gitignore -Nurp linux-2.6.24/include/linux/squashfs_fs_sb.h linux-2.6.24-squashfs3.3/include/linux/squashfs_fs_sb.h +--- linux-2.6.24/include/linux/squashfs_fs_sb.h 1970-01-01 01:00:00.000000000 +0100 ++++ linux-2.6.24-squashfs3.3/include/linux/squashfs_fs_sb.h 2007-08-19 04:24:26.000000000 +0100 +@@ -0,0 +1,76 @@ ++#ifndef SQUASHFS_FS_SB ++#define SQUASHFS_FS_SB ++/* ++ * Squashfs ++ * ++ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007 ++ * Phillip Lougher ++ * ++ * This program is free software; you can redistribute it and/or ++ * modify it under the terms of the GNU General Public License ++ * as published by the Free Software Foundation; either version 2, ++ * or (at your option) any later version. ++ * ++ * This program is distributed in the hope that it will be useful, ++ * but WITHOUT ANY WARRANTY; without even the implied warranty of ++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ++ * GNU General Public License for more details. ++ * ++ * You should have received a copy of the GNU General Public License ++ * along with this program; if not, write to the Free Software ++ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ++ * ++ * squashfs_fs_sb.h ++ */ ++ ++#include ++ ++struct squashfs_cache { ++ long long block; ++ int length; ++ long long next_index; ++ char *data; ++}; ++ ++struct squashfs_fragment_cache { ++ long long block; ++ int length; ++ unsigned int locked; ++ char *data; ++}; ++ ++struct squashfs_sb_info { ++ struct squashfs_super_block sblk; ++ int devblksize; ++ int devblksize_log2; ++ int swap; ++ struct squashfs_cache *block_cache; ++ struct squashfs_fragment_cache *fragment; ++ int next_cache; ++ int next_fragment; ++ int next_meta_index; ++ unsigned int *uid; ++ unsigned int *guid; ++ long long *fragment_index; ++ unsigned int *fragment_index_2; ++ char *read_page; ++ struct mutex read_data_mutex; ++ struct mutex read_page_mutex; ++ struct mutex block_cache_mutex; ++ struct mutex fragment_mutex; ++ struct mutex meta_index_mutex; ++ wait_queue_head_t waitq; ++ wait_queue_head_t fragment_wait_queue; ++ struct meta_index *meta_index; ++ z_stream stream; ++ long long *inode_lookup_table; ++ int unused_cache_blks; ++ int unused_frag_blks; ++ int (*read_inode)(struct inode *i, squashfs_inode_t \ ++ inode); ++ long long (*read_blocklist)(struct inode *inode, int \ ++ index, int readahead_blks, char *block_list, \ ++ unsigned short **block_p, unsigned int *bsize); ++ int (*read_fragment_index_table)(struct super_block *s); ++}; ++#endif +diff -x .gitignore -Nurp linux-2.6.24/init/do_mounts_rd.c linux-2.6.24-squashfs3.3/init/do_mounts_rd.c +--- linux-2.6.24/init/do_mounts_rd.c 2007-10-25 17:41:49.000000000 +0100 ++++ linux-2.6.24-squashfs3.3/init/do_mounts_rd.c 2007-11-01 05:06:25.000000000 +0000 +@@ -5,6 +5,7 @@ + #include + #include + #include ++#include + #include + #include + +@@ -39,6 +40,7 @@ static int __init crd_load(int in_fd, in + * numbers could not be found. + * + * We currently check for the following magic numbers: ++ * squashfs + * minix + * ext2 + * romfs +@@ -53,6 +55,7 @@ identify_ramdisk_image(int fd, int start + struct ext2_super_block *ext2sb; + struct romfs_super_block *romfsb; + struct cramfs_super *cramfsb; ++ struct squashfs_super_block *squashfsb; + int nblocks = -1; + unsigned char *buf; + +@@ -64,6 +67,7 @@ identify_ramdisk_image(int fd, int start + ext2sb = (struct ext2_super_block *) buf; + romfsb = (struct romfs_super_block *) buf; + cramfsb = (struct cramfs_super *) buf; ++ squashfsb = (struct squashfs_super_block *) buf; + memset(buf, 0xe5, size); + + /* +@@ -101,6 +105,18 @@ identify_ramdisk_image(int fd, int start + goto done; + } + ++ /* squashfs is at block zero too */ ++ if (squashfsb->s_magic == SQUASHFS_MAGIC) { ++ printk(KERN_NOTICE ++ "RAMDISK: squashfs filesystem found at block %d\n", ++ start_block); ++ if (squashfsb->s_major < 3) ++ nblocks = (squashfsb->bytes_used_2+BLOCK_SIZE-1)>>BLOCK_SIZE_BITS; ++ else ++ nblocks = (squashfsb->bytes_used+BLOCK_SIZE-1)>>BLOCK_SIZE_BITS; ++ goto done; ++ } ++ + /* + * Read block 1 to test for minix and ext2 superblock + */ diff --git a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/uvesafb-0.1-rc3-2.6.22.patch b/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/uvesafb-0.1-rc3-2.6.22.patch deleted file mode 100644 index 711375114..000000000 --- a/meta/packages/linux/linux-rp-2.6.23+2.6.24-rc8/uvesafb-0.1-rc3-2.6.22.patch +++ /dev/null @@ -1,2590 +0,0 @@ ---- - Documentation/fb/uvesafb.txt | 188 +++ - drivers/video/Kconfig | 18 - drivers/video/Makefile | 1 - drivers/video/modedb.c | 28 - drivers/video/uvesafb.c | 2058 +++++++++++++++++++++++++++++++++++++++++++ - include/linux/connector.h | 7 - include/video/Kbuild | 2 - include/video/uvesafb.h | 193 ++++ - 8 files changed, 2479 insertions(+), 16 deletions(-) - -Index: linux-2.6.22/Documentation/fb/uvesafb.txt -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/Documentation/fb/uvesafb.txt 2007-08-28 21:56:34.000000000 +0100 -@@ -0,0 +1,188 @@ -+ -+uvesafb - A Generic Driver for VBE2+ compliant video cards -+========================================================== -+ -+1. Requirements -+--------------- -+ -+uvesafb should work with any video card that has a Video BIOS compliant -+with the VBE 2.0 standard. -+ -+Unlike other drivers, uvesafb makes use of a userspace helper called -+v86d. v86d is used to run the x86 Video BIOS code in a simulated and -+controlled environment. This allows uvesafb to function on arches other -+than x86. Check the v86d documentation for a list of currently supported -+arches. -+ -+v86d source code can be downloaded from the following website: -+ http://dev.gentoo.org/~spock/projects/uvesafb -+ -+Please refer to the v86d documentation for detailed configuration and -+installation instructions. -+ -+Note that the v86d userspace helper has to be available at all times in -+order for uvesafb to work properly. If you want to use uvesafb during -+early boot, you will have to include v86d into an initramfs image, and -+either compile it into the kernel or use it as an initrd. -+ -+2. Caveats and limitations -+-------------------------- -+ -+uvesafb is a _generic_ driver which supports a wide variety of video -+cards, but which is ultimately limited by the Video BIOS interface. -+The most important limitations are: -+ -+- Lack of any type of acceleration. -+- A strict and limited set of supported video modes. Often the native -+ or most optimal resolution/refresh rate for your setup will not work -+ with uvesafb, simply because the Video BIOS doesn't support the -+ video mode you want to use. This can be especially painful with -+ widescreen panels, where native video modes don't have the 4:3 aspect -+ ratio, which is what most BIOS-es are limited to. -+- Adjusting the refresh rate is only possible with a VBE 3.0 compliant -+ Video BIOS. Note that many nVidia Video BIOS-es claim to be VBE 3.0 -+ compliant, while they simply ignore any refresh rate settings. -+ -+3. Configuration -+---------------- -+ -+uvesafb can be compiled either as a module, or directly into the kernel. -+In both cases it supports the same set of configuration options, which -+are either given on the kernel command line or as module parameters, e.g.: -+ -+ video=uvesafb:1024x768-32,mtrr:3,ywrap (compiled into the kernel) -+ -+ # modprobe uvesafb mode=1024x768-32 mtrr=3 scroll=ywrap (module) -+ -+Accepted options: -+ -+ypan Enable display panning using the VESA protected mode -+ interface. The visible screen is just a window of the -+ video memory, console scrolling is done by changing the -+ start of the window. Available on x86 only. -+ -+ywrap Same as ypan, but assumes your gfx board can wrap-around -+ the video memory (i.e. starts reading from top if it -+ reaches the end of video memory). Faster than ypan. -+ Available on x86 only. -+ -+redraw Scroll by redrawing the affected part of the screen, this -+ is the safe (and slow) default. -+ -+(If you're using uvesafb as a module, the above three options are -+ used a parameter of the scroll option, e.g. scroll=ypan.) -+ -+vgapal Use the standard VGA registers for palette changes. -+ -+pmipal Use the protected mode interface for palette changes. -+ This is the default if the protected mode interface is -+ available. Available on x86 only. -+ -+mtrr:n Setup memory type range registers for the framebuffer -+ where n: -+ 0 - disabled (equivalent to nomtrr) (default) -+ 1 - uncachable -+ 2 - write-back -+ 3 - write-combining -+ 4 - write-through -+ -+ If you see the following in dmesg, choose the type that matches -+ the old one. In this example, use "mtrr:2". -+... -+mtrr: type mismatch for e0000000,8000000 old: write-back new: write-combining -+... -+ -+nomtrr Do not use memory type range registers. -+ -+vremap:n -+ Remap 'n' MiB of video RAM. If 0 or not specified, remap memory -+ according to video mode. -+ -+vtotal:n -+ If the video BIOS of your card incorrectly determines the total -+ amount of video RAM, use this option to override the BIOS (in MiB). -+ -+ The mode you want to set, in the standard modedb format. Refer to -+ modedb.txt for a detailed description. When uvesafb is compiled as -+ a module, the mode string should be provided as a value of the -+ 'mode' option. -+ -+vbemode:x -+ Force the use of VBE mode x. The mode will only be set if it's -+ found in the VBE-provided list of supported modes. -+ NOTE: The mode number 'x' should be specified in VESA mode number -+ notation, not the Linux kernel one (eg. 257 instead of 769). -+ HINT: If you use this option because normal parameter does -+ not work for you and you use a X server, you'll probably want to -+ set the 'nocrtc' option to ensure that the video mode is properly -+ restored after console <-> X switches. -+ -+nocrtc Do not use CRTC timings while setting the video mode. This option -+ has any effect only if the Video BIOS is VBE 3.0 compliant. Use it -+ if you have problems with modes set the standard way. Note that -+ using this option implies that any refresh rate adjustments will -+ be ignored and the refresh rate will stay at your BIOS default (60 Hz). -+ -+noedid Do not try to fetch and use EDID-provided modes. -+ -+noblank Disable hardware blanking. -+ -+v86d:path -+ Set path to the v86d executable. This option is only available as -+ a module parameter, and not as a part of the video= string. If you -+ need to use it and have uvesafb built into the kernel, use -+ uvesafb.v86d="path". -+ -+Additionally, the following parameters may be provided. They all override the -+EDID-provided values and BIOS defaults. Refer to your monitor's specs to get -+the correct values for maxhf, maxvf and maxclk for your hardware. -+ -+maxhf:n Maximum horizontal frequency (in kHz). -+maxvf:n Maximum vertical frequency (in Hz). -+maxclk:n Maximum pixel clock (in MHz). -+ -+4. The sysfs interface -+---------------------- -+ -+uvesafb provides several sysfs nodes for configurable parameters and -+additional information. -+ -+Driver attributes: -+ -+/sys/bus/platform/drivers/uvesafb -+ - v86d (default: /sbin/v86d) -+ Path to the v86d executable. v86d is started by uvesafb -+ if an instance of the daemon isn't already running. -+ -+Device attributes: -+ -+/sys/bus/platform/drivers/uvesafb/uvesafb.0 -+ - nocrtc -+ Use the default refresh rate (60 Hz) if set to 1. -+ -+ - oem_product_name -+ - oem_product_rev -+ - oem_string -+ - oem_vendor -+ Information about the card and its maker. -+ -+ - vbe_modes -+ A list of video modes supported by the Video BIOS along with their -+ VBE mode numbers in hex. -+ -+ - vbe_version -+ A BCD value indicating the implemented VBE standard. -+ -+5. Miscellaneous -+---------------- -+ -+Uvesafb will set a video mode with the default refresh rate and timings -+from the Video BIOS if you set pixclock to 0 in fb_var_screeninfo. -+ -+ -+-- -+ Michal Januszewski -+ Last updated: 2007-06-16 -+ -+ Documentation of the uvesafb options is loosely based on vesafb.txt. -+ -Index: linux-2.6.22/drivers/video/Kconfig -=================================================================== ---- linux-2.6.22.orig/drivers/video/Kconfig 2007-08-28 21:56:33.000000000 +0100 -+++ linux-2.6.22/drivers/video/Kconfig 2007-08-28 21:56:34.000000000 +0100 -@@ -592,6 +592,24 @@ config FB_TGA - - Say Y if you have one of those. - -+config FB_UVESA -+ tristate "Userspace VESA VGA graphics support" -+ depends on FB && CONNECTOR -+ select FB_CFB_FILLRECT -+ select FB_CFB_COPYAREA -+ select FB_CFB_IMAGEBLIT -+ select FB_MODE_HELPERS -+ help -+ This is the frame buffer driver for generic VBE 2.0 compliant -+ graphic cards. It can also take advantage of VBE 3.0 features, -+ such as refresh rate adjustment. -+ -+ This driver generally provides more features than vesafb but -+ requires a userspace helper application called 'v86d'. See -+ for more information. -+ -+ If unsure, say N. -+ - config FB_VESA - bool "VESA VGA graphics support" - depends on (FB = y) && X86 -Index: linux-2.6.22/drivers/video/Makefile -=================================================================== ---- linux-2.6.22.orig/drivers/video/Makefile 2007-08-28 21:56:33.000000000 +0100 -+++ linux-2.6.22/drivers/video/Makefile 2007-08-28 21:56:34.000000000 +0100 -@@ -116,6 +116,7 @@ obj-$(CONFIG_FB_XILINX) += xil - obj-$(CONFIG_FB_OMAP) += omap/ - - # Platform or fallback drivers go here -+obj-$(CONFIG_FB_UVESA) += uvesafb.o - obj-$(CONFIG_FB_VESA) += vesafb.o - obj-$(CONFIG_FB_IMAC) += imacfb.o - obj-$(CONFIG_FB_VGA16) += vga16fb.o -Index: linux-2.6.22/drivers/video/modedb.c -=================================================================== ---- linux-2.6.22.orig/drivers/video/modedb.c 2007-08-28 21:54:13.000000000 +0100 -+++ linux-2.6.22/drivers/video/modedb.c 2007-08-28 21:56:34.000000000 +0100 -@@ -606,26 +606,29 @@ done: - DPRINTK("Trying specified video mode%s %ix%i\n", - refresh_specified ? "" : " (ignoring refresh rate)", xres, yres); - -- diff = refresh; -+ if (!refresh_specified) -+ diff = 0; -+ else -+ diff = refresh; -+ - best = -1; - for (i = 0; i < dbsize; i++) { -- if (name_matches(db[i], name, namelen) || -- (res_specified && res_matches(db[i], xres, yres))) { -- if(!fb_try_mode(var, info, &db[i], bpp)) { -- if(!refresh_specified || db[i].refresh == refresh) -- return 1; -- else { -- if(diff > abs(db[i].refresh - refresh)) { -- diff = abs(db[i].refresh - refresh); -- best = i; -- } -+ if ((name_matches(db[i], name, namelen) || -+ (res_specified && res_matches(db[i], xres, yres))) && -+ !fb_try_mode(var, info, &db[i], bpp)) { -+ if (refresh_specified && db[i].refresh == refresh) { -+ return 1; -+ } else { -+ if (diff < db[i].refresh) { -+ diff = db[i].refresh; -+ best = i; - } - } - } - } - if (best != -1) { - fb_try_mode(var, info, &db[best], bpp); -- return 2; -+ return (refresh_specified) ? 2 : 1; - } - - diff = xres + yres; -@@ -938,6 +941,7 @@ void fb_destroy_modelist(struct list_hea - kfree(pos); - } - } -+EXPORT_SYMBOL_GPL(fb_destroy_modelist); - - /** - * fb_videomode_to_modelist: convert mode array to mode list -Index: linux-2.6.22/drivers/video/uvesafb.c -=================================================================== ---- /dev/null 1970-01-01 00:00:00.000000000 +0000 -+++ linux-2.6.22/drivers/video/uvesafb.c 2007-08-28 21:56:34.000000000 +0100 -@@ -0,0 +1,2058 @@ -+/* -+ * A framebuffer driver for VBE 2.0+ compliant video cards -+ * -+ * (c) 2007 Michal Januszewski -+ * Loosely based upon the vesafb driver. -+ * -+ */ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include