From 239a368d5715d8f5b7733f9400339c2350c49369 Mon Sep 17 00:00:00 2001 From: Saul Wold Date: Fri, 24 Sep 2010 15:36:24 -0700 Subject: netbook: Correct netbook build by moving netbook configuration from moblin to meta Signed-off-by: Saul Wold --- .../linux-2.6.34-moorestown-keypad-driver.patch | 839 +++++++++++++++++++++ 1 file changed, 839 insertions(+) create mode 100644 meta/recipes-kernel/linux/linux-netbook-2.6.33.2/linux-2.6.34-moorestown-keypad-driver.patch (limited to 'meta/recipes-kernel/linux/linux-netbook-2.6.33.2/linux-2.6.34-moorestown-keypad-driver.patch') diff --git a/meta/recipes-kernel/linux/linux-netbook-2.6.33.2/linux-2.6.34-moorestown-keypad-driver.patch b/meta/recipes-kernel/linux/linux-netbook-2.6.33.2/linux-2.6.34-moorestown-keypad-driver.patch new file mode 100644 index 000000000..453acc328 --- /dev/null +++ b/meta/recipes-kernel/linux/linux-netbook-2.6.33.2/linux-2.6.34-moorestown-keypad-driver.patch @@ -0,0 +1,839 @@ +From 3e65e5210bc3c81a58c60e365ee044f2e6044efc Mon Sep 17 00:00:00 2001 +From: Zheng Ba +Date: Sun, 22 Nov 2009 16:22:31 +0800 +Subject: [PATCH 047/104] Full keypad controller driver patch for Beta + +This patch adds the keypad support for Moorestown platform. + +Changes from Alpha2: solved "CRITICAL" issues marked by Klocwork + HSD sighting 3469242 + +Signed-off-by: Zheng Ba +--- + drivers/input/keyboard/Kconfig | 7 + + drivers/input/keyboard/Makefile | 1 + + drivers/input/keyboard/mrst_keypad.c | 782 ++++++++++++++++++++++++++++++++++ + 3 files changed, 790 insertions(+), 0 deletions(-) + create mode 100644 drivers/input/keyboard/mrst_keypad.c + +diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig +index f7a4497..4c2bdaf 100644 +--- a/drivers/input/keyboard/Kconfig ++++ b/drivers/input/keyboard/Kconfig +@@ -292,6 +292,13 @@ config KEYBOARD_MAX7359 + To compile this driver as a module, choose M here: the + module will be called max7359_keypad. + ++config KEYBOARD_MRST ++ tristate "MRST keypad support" ++ depends on GPIO_LANGWELL ++ help ++ Say Y if you want to use the mrst keypad ++ depends on GPIO_LANGWELL ++ + config KEYBOARD_NEWTON + tristate "Newton keyboard" + select SERIO +diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile +index 78654ef..0337f76 100644 +--- a/drivers/input/keyboard/Makefile ++++ b/drivers/input/keyboard/Makefile +@@ -14,6 +14,7 @@ obj-$(CONFIG_KEYBOARD_BFIN) += bf54x-keys.o + obj-$(CONFIG_KEYBOARD_CORGI) += corgikbd.o + obj-$(CONFIG_KEYBOARD_DAVINCI) += davinci_keyscan.o + obj-$(CONFIG_KEYBOARD_EP93XX) += ep93xx_keypad.o ++obj-$(CONFIG_KEYBOARD_MRST) += mrst_keypad.o + obj-$(CONFIG_KEYBOARD_GPIO) += gpio_keys.o + obj-$(CONFIG_KEYBOARD_HIL) += hil_kbd.o + obj-$(CONFIG_KEYBOARD_HIL_OLD) += hilkbd.o +diff --git a/drivers/input/keyboard/mrst_keypad.c b/drivers/input/keyboard/mrst_keypad.c +new file mode 100644 +index 0000000..faf3ab7 +--- /dev/null ++++ b/drivers/input/keyboard/mrst_keypad.c +@@ -0,0 +1,782 @@ ++/* ++ * linux/drivers/input/keyboard/mrst_keypad.c ++ * ++ * Driver for the matrix keypad controller on Moorestown platform. ++ * ++ * Copyright (c) 2009 Intel Corporation. ++ * Created: Sep 18, 2008 ++ * Updated: Apr 24, 2009 ++ * ++ * Based on pxa27x_keypad.c by Rodolfo Giometti ++ * pxa27x_keypad.c is based on a previous implementation by Kevin O'Connor ++ * and Alex Osborne and ++ * on some suggestions by Nicolas Pitre ++ * ++ * This program is free software; you can redistribute it and/or modify it ++ * under the terms and conditions of the GNU General Public License, ++ * version 2, as published by the Free Software Foundation. ++ * ++ * This program is distributed in the hope 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, Inc., ++ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. ++ * ++ */ ++ ++#define DRV_NAME "mrst_keypad" ++#define DRV_VERSION "0.0.1" ++#define MRST_KEYPAD_DRIVER_NAME DRV_NAME " " DRV_VERSION ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++/* ++ * Keypad Controller registers ++ */ ++#define KPC 0x0000 /* Keypad Control register */ ++#define KPDK 0x0004 /* Keypad Direct Key register */ ++#define KPREC 0x0008 /* Keypad Rotary Encoder register */ ++#define KPMK 0x000C /* Keypad Matrix Key register */ ++#define KPAS 0x0010 /* Keypad Automatic Scan register */ ++ ++/* Keypad Automatic Scan Multiple Key Presser register 0-3 */ ++#define KPASMKP0 0x0014 ++#define KPASMKP1 0x0018 ++#define KPASMKP2 0x001C ++#define KPASMKP3 0x0020 ++#define KPKDI 0x0024 ++ ++/* bit definitions */ ++#define KPC_MKRN(n) ((((n) - 1) & 0x7) << 26) /* matrix key row number */ ++#define KPC_MKCN(n) ((((n) - 1) & 0x7) << 23) /* matrix key col number */ ++#define KPC_DKN(n) ((((n) - 1) & 0x7) << 6) /* direct key number */ ++ ++#define KPC_AS (0x1 << 30) /* Automatic Scan bit */ ++#define KPC_ASACT (0x1 << 29) /* Automatic Scan on Activity */ ++#define KPC_MI (0x1 << 22) /* Matrix interrupt bit */ ++#define KPC_IMKP (0x1 << 21) /* Ignore Multiple Key Press */ ++ ++#define KPC_MS(n) (0x1 << (13 + (n))) /* Matrix scan line 'n' */ ++#define KPC_MS_ALL (0xff << 13) ++ ++#define KPC_ME (0x1 << 12) /* Matrix Keypad Enable */ ++#define KPC_MIE (0x1 << 11) /* Matrix Interrupt Enable */ ++#define KPC_DK_DEB_SEL (0x1 << 9) /* Direct Keypad Debounce Select */ ++#define KPC_DI (0x1 << 5) /* Direct key interrupt bit */ ++#define KPC_RE_ZERO_DEB (0x1 << 4) /* Rotary Encoder Zero Debounce */ ++#define KPC_REE1 (0x1 << 3) /* Rotary Encoder1 Enable */ ++#define KPC_REE0 (0x1 << 2) /* Rotary Encoder0 Enable */ ++#define KPC_DE (0x1 << 1) /* Direct Keypad Enable */ ++#define KPC_DIE (0x1 << 0) /* Direct Keypad interrupt Enable */ ++ ++#define KPDK_DKP (0x1 << 31) ++#define KPDK_DK(n) ((n) & 0xff) ++ ++#define KPREC_OF1 (0x1 << 31) ++#define kPREC_UF1 (0x1 << 30) ++#define KPREC_OF0 (0x1 << 15) ++#define KPREC_UF0 (0x1 << 14) ++ ++#define KPREC_RECOUNT0(n) ((n) & 0xff) ++#define KPREC_RECOUNT1(n) (((n) >> 16) & 0xff) ++ ++#define KPMK_MKP (0x1 << 31) ++#define KPAS_SO (0x1 << 31) ++#define KPASMKPx_SO (0x1 << 31) ++ ++#define KPAS_MUKP(n) (((n) >> 26) & 0x1f) ++#define KPAS_RP(n) (((n) >> 4) & 0xf) ++#define KPAS_CP(n) ((n) & 0xf) ++ ++#define KPASMKP_MKC_MASK (0xff) ++ ++#define KEYPAD_MATRIX_GPIO_IN_PIN 24 ++#define KEYPAD_MATRIX_GPIO_OUT_PIN 32 ++#define KEYPAD_DIRECT_GPIO_IN_PIN 40 ++ ++ ++static struct pci_device_id keypad_pci_tbl[] = { ++ {0x8086, 0x0805, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, ++ {0,} ++}; ++MODULE_DEVICE_TABLE(pci, keypad_pci_tbl); ++ ++#define keypad_readl(off) readl(keypad->mmio_base + (off)) ++#define keypad_writel(off, v) writel((v), keypad->mmio_base + (off)) ++ ++#define MAX_MATRIX_KEY_NUM (8 * 8) ++#define MAX_DIRECT_KEY_NUM (4) ++ ++#define MAX_MATRIX_KEY_ROWS (8) ++#define MAX_MATRIX_KEY_COLS (8) ++#define DEBOUNCE_INTERVAL 100 ++ ++#define KEY_HALFSHUTTER KEY_PROG1 ++#define KEY_FULLSHUTTER KEY_CAMERA ++ ++static unsigned int mrst_keycode[MAX_MATRIX_KEY_NUM] = { ++ KEY_F, KEY_D, KEY_E, KEY_GRAVE, KEY_C, KEY_R, KEY_4, KEY_V, ++ KEY_NUMLOCK, KEY_LEFTCTRL, KEY_Z, KEY_W, KEY_2, KEY_X, KEY_S, KEY_3, ++ KEY_EQUAL, KEY_N, KEY_H, KEY_U, KEY_7, KEY_M, KEY_J, KEY_8, ++ KEY_6, KEY_5, KEY_APOSTROPHE, KEY_G, KEY_T, KEY_SPACE, KEY_B, KEY_Y, ++ KEY_MINUS, KEY_0, KEY_LEFT, KEY_SEMICOLON, KEY_P, KEY_DOWN, KEY_UP, ++ KEY_BACKSPACE, ++ KEY_L, KEY_K, KEY_I, KEY_SLASH, KEY_COMMA, KEY_O, KEY_9, KEY_DOT, ++ KEY_Q, KEY_TAB, KEY_ESC, KEY_LEFTSHIFT, KEY_CAPSLOCK, KEY_1, KEY_FN, ++ KEY_A, ++ 0, KEY_RIGHTSHIFT, KEY_ENTER, 0, KEY_RIGHT, 0, 0, 0, ++}; ++ ++/* NumLk key mapping */ ++static unsigned int mrst_keycode_numlck[MAX_MATRIX_KEY_NUM] = { ++ KEY_F, KEY_D, KEY_E, KEY_GRAVE, KEY_C, KEY_R, KEY_4, KEY_V, ++ KEY_NUMLOCK, KEY_LEFTCTRL, KEY_Z, KEY_W, KEY_2, KEY_X, KEY_S, KEY_3, ++ KEY_EQUAL, KEY_N, KEY_H, KEY_KP4, KEY_KP7, KEY_KP0, KEY_KP1, KEY_KP8, ++ KEY_6, KEY_5, KEY_APOSTROPHE, KEY_G, KEY_T, KEY_SPACE, KEY_B, KEY_Y, ++ KEY_MINUS, KEY_KPSLASH, KEY_LEFT, KEY_KPMINUS, KEY_KPASTERISK, ++ KEY_DOWN, KEY_UP, KEY_BACKSPACE, ++ KEY_KP3, KEY_KP2, KEY_KP5, KEY_SLASH, KEY_KPDOT, KEY_KP6, KEY_KP9, ++ KEY_KPPLUS, ++ KEY_Q, KEY_TAB, KEY_ESC, KEY_LEFTSHIFT, KEY_CAPSLOCK, KEY_1, KEY_FN, ++ KEY_A, ++ 0, KEY_RIGHTSHIFT, KEY_ENTER, 0, KEY_RIGHT, 0, 0, 0, ++}; ++ ++/* Fn key mapping */ ++static unsigned int mrst_keycode_fn[MAX_MATRIX_KEY_NUM] = { ++ 0, 0, 0, 0, 0, 0, 0, 0, ++ 0, 0, 0, 0, 0, 0, 0, 0, ++ KEY_LEFTBRACE, 0, 0, 0, 0, 0, 0, 0, ++ 0, 0, 0, 0, 0, 0, 0, 0, ++ 0, 0, KEY_HOME, 0, 0, KEY_PAGEDOWN, KEY_PAGEUP, 0, ++ 0, 0, 0, KEY_RIGHTBRACE, KEY_LEFTBRACE, 0, 0, KEY_RIGHTBRACE, ++ 0, 0, 0, KEY_LEFTSHIFT, 0, 0, KEY_FN, 0, ++ 0, KEY_RIGHTSHIFT, 0, 0, KEY_END, 0, 0, 0, ++}; ++ ++/* direct key map */ ++static unsigned int mrst_direct_keycode[MAX_DIRECT_KEY_NUM] = { ++ KEY_VOLUMEUP, KEY_VOLUMEDOWN, KEY_HALFSHUTTER, KEY_FULLSHUTTER, ++}; ++ ++struct mrst_keypad { ++ ++ struct input_dev *input_dev; ++ void __iomem *mmio_base; ++ ++ unsigned int matrix_key_rows; ++ unsigned int matrix_key_cols; ++ int matrix_key_map_size; ++ ++ /* key debounce interval */ ++ unsigned int debounce_interval; ++ ++ /* matrix key code map */ ++ unsigned int matrix_keycodes[MAX_MATRIX_KEY_NUM]; ++ ++ /* state row bits of each column scan */ ++ uint32_t matrix_key_state[MAX_MATRIX_KEY_COLS]; ++ uint32_t direct_key_state; ++ ++ unsigned int direct_key_mask; ++ ++ int direct_key_num; ++ ++ unsigned int direct_key_map[MAX_DIRECT_KEY_NUM]; ++ ++ /* rotary encoders 0 */ ++ int enable_rotary0; ++ int rotary0_rel_code; ++ int rotary0_up_key; ++ int rotary0_down_key; ++ ++ /* rotary encoders 1 */ ++ int enable_rotary1; ++ int rotary1_rel_code; ++ int rotary1_up_key; ++ int rotary1_down_key; ++ ++ int rotary_rel_code[2]; ++ int rotary_up_key[2]; ++ int rotary_down_key[2]; ++ ++ /* Fn key */ ++ int fn; ++ ++ /* Number Lock key */ ++ int numlck; ++ ++ /* FIXME: ++ * Keypad controller likely issues fake interrupts ++ * when direct key status registers were first initialized ++ * This value assures this interrupt will not be proceeded. ++ */ ++ int count; ++}; ++ ++static void mrst_keypad_build_keycode(struct mrst_keypad *keypad) ++{ ++ struct input_dev *input_dev = keypad->input_dev; ++ unsigned int *key; ++ int i, code; ++ ++ keypad->matrix_key_rows = MAX_MATRIX_KEY_ROWS; ++ keypad->matrix_key_cols = MAX_MATRIX_KEY_COLS; ++ keypad->matrix_key_map_size = MAX_MATRIX_KEY_NUM; ++ keypad->debounce_interval = DEBOUNCE_INTERVAL; ++ ++ /* three sets of keycode here */ ++ if (keypad->fn) ++ memcpy(keypad->matrix_keycodes, mrst_keycode_fn, ++ sizeof(keypad->matrix_keycodes)); ++ else if (keypad->numlck) ++ memcpy(keypad->matrix_keycodes, mrst_keycode_numlck, ++ sizeof(keypad->matrix_keycodes)); ++ else ++ memcpy(keypad->matrix_keycodes, mrst_keycode, ++ sizeof(keypad->matrix_keycodes)); ++ ++ memcpy(keypad->direct_key_map, mrst_direct_keycode, ++ sizeof(keypad->direct_key_map)); ++ ++ key = &keypad->matrix_keycodes[0]; ++ for (i = 0; i < MAX_MATRIX_KEY_NUM; i++, key++) { ++ code = (*key) & 0xffffff; ++ set_bit(code, input_dev->keybit); ++ } ++ ++ key = &keypad->direct_key_map[0]; ++ for (i = 0; i < MAX_DIRECT_KEY_NUM; i++, key++) { ++ code = (*key) & 0xffffff; ++ set_bit(code, input_dev->keybit); ++ } ++ ++ keypad->direct_key_num = MAX_DIRECT_KEY_NUM; ++ keypad->enable_rotary0 = 0; ++ keypad->enable_rotary1 = 0; ++ ++} ++ ++static inline unsigned int lookup_matrix_keycode( ++ struct mrst_keypad *keypad, int row, int col) ++{ ++ return keypad->matrix_keycodes[(row << 3) + col]; ++} ++ ++static void handle_constant_keypress(struct mrst_keypad *keypad, ++ int num, int col, int row, ++ int state) ++{ ++ struct input_dev *dev = keypad->input_dev; ++ ++ switch (num) { ++ case 0: ++ if (keypad->fn) ++ keypad->fn = 0; ++ /* Manually release special keys (Fn combinations) */ ++ if (test_bit(KEY_LEFTBRACE, dev->key)) ++ input_report_key(dev, KEY_LEFTBRACE, 0); ++ if (test_bit(KEY_RIGHTBRACE, dev->key)) ++ input_report_key(dev, KEY_RIGHTBRACE, 0); ++ if (test_bit(KEY_HOME, dev->key)) ++ input_report_key(dev, KEY_RIGHTBRACE, 0); ++ if (test_bit(KEY_END, dev->key)) ++ input_report_key(dev, KEY_END, 0); ++ if (test_bit(KEY_PAGEUP, dev->key)) ++ input_report_key(dev, KEY_RIGHTBRACE, 0); ++ if (test_bit(KEY_PAGEDOWN, dev->key)) ++ input_report_key(dev, KEY_RIGHTBRACE, 0); ++ ++ return; ++ ++ case 1: ++ /* if Fn pressed */ ++ if (col == 6 && row == 6) ++ keypad->fn = 1; ++ /* key '[' */ ++ else if ((col == 0 && row == 2) && state) { ++ keypad->fn = 0; ++ set_bit(KEY_EQUAL, dev->key); ++ dev->repeat_key = KEY_EQUAL; ++ } ++ /* key ']' */ ++ else if ((col == 3 && row == 5) && state) { ++ keypad->fn = 0; ++ set_bit(KEY_SLASH, dev->key); ++ dev->repeat_key = KEY_SLASH; ++ } ++ /* key '{' */ ++ else if ((col == 4 && row == 5) && state) { ++ keypad->fn = 0; ++ set_bit(KEY_COMMA, dev->key); ++ dev->repeat_key = KEY_COMMA; ++ } ++ /* key '}' */ ++ else if ((col == 7 && row == 5) && state) { ++ keypad->fn = 0; ++ set_bit(KEY_DOT, dev->key); ++ dev->repeat_key = KEY_DOT; ++ } ++ ++ return; ++ default: ++ ; ++ } ++} ++ ++static void mrst_keypad_scan_matrix(struct mrst_keypad *keypad) ++{ ++ int row, col, num_keys_pressed = 0; ++ uint32_t new_state[MAX_MATRIX_KEY_COLS]; ++ uint32_t kpas = keypad_readl(KPAS); ++ int status; ++ ++ num_keys_pressed = KPAS_MUKP(kpas); ++ ++ memset(new_state, 0, sizeof(new_state)); ++ ++ if (num_keys_pressed == 0) { ++ status = keypad->matrix_key_state[0] & (1 << 0); ++ handle_constant_keypress(keypad, num_keys_pressed, 0, 0, ++ status); ++ ++ goto scan; ++ } ++ ++ if (num_keys_pressed == 1) { ++ col = KPAS_CP(kpas); ++ row = KPAS_RP(kpas); ++ ++ /* if invalid row/col, treat as no key pressed */ ++ if (col < MAX_MATRIX_KEY_COLS && ++ row < MAX_MATRIX_KEY_ROWS) { ++ ++ /* if NumLk pressed */ ++ if (col == 0 && row == 1) ++ keypad->numlck = !keypad->numlck; ++ ++ status = keypad->matrix_key_state[col] & (1 << row); ++ handle_constant_keypress(keypad, num_keys_pressed, col, ++ row, status); ++ ++ new_state[col] = (1 << row); ++ } ++ ++ goto scan; ++ } ++ ++ if (num_keys_pressed > 1) { ++ uint32_t kpasmkp0 = keypad_readl(KPASMKP0); ++ uint32_t kpasmkp1 = keypad_readl(KPASMKP1); ++ uint32_t kpasmkp2 = keypad_readl(KPASMKP2); ++ uint32_t kpasmkp3 = keypad_readl(KPASMKP3); ++ ++ new_state[0] = kpasmkp0 & KPASMKP_MKC_MASK; ++ new_state[1] = (kpasmkp0 >> 16) & KPASMKP_MKC_MASK; ++ new_state[2] = kpasmkp1 & KPASMKP_MKC_MASK; ++ new_state[3] = (kpasmkp1 >> 16) & KPASMKP_MKC_MASK; ++ new_state[4] = kpasmkp2 & KPASMKP_MKC_MASK; ++ new_state[5] = (kpasmkp2 >> 16) & KPASMKP_MKC_MASK; ++ new_state[6] = kpasmkp3 & KPASMKP_MKC_MASK; ++ new_state[7] = (kpasmkp3 >> 16) & KPASMKP_MKC_MASK; ++ ++ /* if Fn is pressed, all SHIFT is ignored, except when { ++ * or } is pressed */ ++ if (new_state[6] & 0x40) { ++ keypad->fn = 1; ++ new_state[3] &= ~0x40; ++ new_state[1] &= ~0x80; ++ } ++ ++ if (keypad->fn == 1) { ++ /* if { or } pressed */ ++ if ((new_state[4] & 0x20) || (new_state[7] & 0x20)) { ++ /* as if LEFTSHIFT is pressed */ ++ new_state[3] |= 0x40; ++ /* as if Fn not pressed */ ++ new_state[6] &= ~0x40; ++ } ++ /* if [ or ] pressed */ ++ if ((new_state[0] & 0x04) || (new_state[3] & 0x20)) ++ /* as if Fn not pressed */ ++ new_state[6] &= ~0x40; ++ } ++ } ++ ++ ++scan: ++ /* re-build keycode */ ++ mrst_keypad_build_keycode(keypad); ++ ++ for (col = 0; col < keypad->matrix_key_cols; col++) { ++ uint32_t bits_changed; ++ ++ bits_changed = keypad->matrix_key_state[col] ^ new_state[col]; ++ if (bits_changed == 0) ++ continue; ++ ++ for (row = 0; row < keypad->matrix_key_rows; row++) { ++ if ((bits_changed & (1 << row)) == 0) ++ continue; ++ ++ input_report_key(keypad->input_dev, ++ lookup_matrix_keycode(keypad, row, col), ++ new_state[col] & (1 << row)); ++ } ++ } ++ input_sync(keypad->input_dev); ++ memcpy(keypad->matrix_key_state, new_state, sizeof(new_state)); ++} ++ ++#define DEFAULT_KPREC (0x007f007f) ++ ++static inline int rotary_delta(uint32_t kprec) ++{ ++ if (kprec & KPREC_OF0) ++ return (kprec & 0xff) + 0x7f; ++ else if (kprec & KPREC_UF0) ++ return (kprec & 0xff) - 0x7f - 0xff; ++ else ++ return (kprec & 0xff) - 0x7f; ++} ++ ++static void report_rotary_event(struct mrst_keypad *keypad, int r, int delta) ++{ ++ struct input_dev *dev = keypad->input_dev; ++ ++ if (delta == 0) ++ return; ++ ++ if (keypad->rotary_up_key[r] && keypad->rotary_down_key[r]) { ++ int keycode = (delta > 0) ? keypad->rotary_up_key[r] : ++ keypad->rotary_down_key[r]; ++ ++ /* simulate a press-n-release */ ++ input_report_key(dev, keycode, 1); ++ input_sync(dev); ++ input_report_key(dev, keycode, 0); ++ input_sync(dev); ++ } else { ++ input_report_rel(dev, keypad->rotary_rel_code[r], delta); ++ input_sync(dev); ++ } ++} ++ ++static void mrst_keypad_scan_rotary(struct mrst_keypad *keypad) ++{ ++ unsigned int kprec; ++ ++ /* read and reset to default count value */ ++ kprec = keypad_readl(KPREC); ++ keypad_writel(KPREC, DEFAULT_KPREC); ++ ++ if (keypad->enable_rotary0) ++ report_rotary_event(keypad, 0, rotary_delta(kprec)); ++ ++ if (keypad->enable_rotary1) ++ report_rotary_event(keypad, 1, rotary_delta(kprec >> 16)); ++} ++ ++static void mrst_keypad_scan_direct(struct mrst_keypad *keypad) ++{ ++ unsigned int new_state; ++ uint32_t kpdk, bits_changed; ++ int i; ++ ++ kpdk = keypad_readl(KPDK); ++ ++ if (keypad->enable_rotary0 || keypad->enable_rotary1) ++ mrst_keypad_scan_rotary(keypad); ++ ++ if ((keypad->direct_key_map == NULL) || (++keypad->count == 1)) { ++ keypad->direct_key_state = 0; ++ return; ++ } ++ ++ new_state = KPDK_DK(kpdk) & keypad->direct_key_mask; ++ new_state = ~new_state; ++ bits_changed = keypad->direct_key_state ^ new_state; ++ ++ if (bits_changed == 0) ++ return; ++ ++ for (i = 0; i < keypad->direct_key_num; i++) { ++ if (bits_changed & (1 << i)) { ++ input_report_key(keypad->input_dev, ++ keypad->direct_key_map[i], ++ (new_state & (1 << i))); ++ } ++ } ++ input_sync(keypad->input_dev); ++ keypad->direct_key_state = new_state; ++ ++} ++ ++static irqreturn_t mrst_keypad_irq_handler(int irq, void *dev_id) ++{ ++ struct mrst_keypad *keypad = dev_id; ++ unsigned long kpc = keypad_readl(KPC); ++ ++ if (kpc & KPC_DI) ++ mrst_keypad_scan_direct(keypad); ++ ++ if (kpc & KPC_MI) ++ mrst_keypad_scan_matrix(keypad); ++ ++ return IRQ_HANDLED; ++} ++ ++static int mrst_keypad_gpio_init(void) ++{ ++ int i, err, cnt = 0; ++ int pins = KEYPAD_MATRIX_GPIO_IN_PIN + MAX_MATRIX_KEY_ROWS + ++ MAX_MATRIX_KEY_COLS + MAX_DIRECT_KEY_NUM; ++ ++ /* explicitely tell which pins have been occupied... */ ++ for (i = KEYPAD_MATRIX_GPIO_IN_PIN; i < pins; i++, cnt++) { ++ err = gpio_request(i, NULL); ++ if (err) { ++ printk(KERN_ERR "GPIO pin %d failed to request.\n", i); ++ goto err_request; ++ } ++ } ++ ++ for (i = 0; i < MAX_MATRIX_KEY_ROWS; i++) ++ gpio_direction_input(KEYPAD_MATRIX_GPIO_IN_PIN + i); ++ ++ for (i = 0; i < MAX_MATRIX_KEY_COLS; i++) ++ /* __gpio_set_value(KEYPAD_GPIO_OUT_PIN + i, 1); */ ++ /* set action is executed in gpio_direction_output() */ ++ gpio_direction_output(KEYPAD_MATRIX_GPIO_OUT_PIN + i, 1); ++ ++ for (i = 0; i < MAX_DIRECT_KEY_NUM; i++) ++ gpio_direction_input(KEYPAD_DIRECT_GPIO_IN_PIN + i); ++ ++ return 0; ++ ++err_request: ++ /* free requested pins... */ ++ for (i = KEYPAD_MATRIX_GPIO_IN_PIN + cnt - 1; ++ i >= KEYPAD_MATRIX_GPIO_IN_PIN; i--) ++ gpio_free(i); ++ return err; ++} ++ ++static void mrst_keypad_config(struct mrst_keypad *keypad) ++{ ++ unsigned int mask = 0, direct_key_num = 0; ++ unsigned long kpc = 0; ++ ++ /* enable matrix keys with automatic scan */ ++ if (keypad->matrix_key_rows && keypad->matrix_key_cols) { ++ kpc |= KPC_ASACT | KPC_MIE | KPC_ME | KPC_MS_ALL; ++ kpc |= KPC_MKRN(keypad->matrix_key_rows) | ++ KPC_MKCN(keypad->matrix_key_cols); ++ } ++ ++ /* enable rotary key, debounce interval same as direct keys */ ++ if (keypad->enable_rotary0) { ++ mask |= 0x03; ++ direct_key_num = 2; ++ kpc |= KPC_REE0; ++ } ++ ++ if (keypad->enable_rotary1) { ++ mask |= 0x0c; ++ direct_key_num = 4; ++ kpc |= KPC_REE1; ++ } ++ ++ if (keypad->direct_key_num > direct_key_num) ++ direct_key_num = keypad->direct_key_num; ++ ++ keypad->direct_key_mask = ((2 << direct_key_num) - 1) & ~mask; ++ ++ /* enable direct key */ ++ if (direct_key_num) ++ kpc |= KPC_DE | KPC_DIE | KPC_DKN(direct_key_num); ++ ++ keypad_writel(KPC, kpc); ++ keypad_writel(KPREC, DEFAULT_KPREC); ++ keypad_writel(KPKDI, keypad->debounce_interval); ++} ++ ++static int mrst_keypad_open(struct input_dev *dev) ++{ ++ struct mrst_keypad *keypad = input_get_drvdata(dev); ++ int err; ++ ++ err = mrst_keypad_gpio_init(); ++ if (err) ++ return err; ++ mrst_keypad_config(keypad); ++ ++ return 0; ++} ++ ++static void mrst_keypad_close(struct input_dev *dev) ++{ ++ int pins = KEYPAD_MATRIX_GPIO_IN_PIN + MAX_MATRIX_KEY_ROWS + ++ MAX_MATRIX_KEY_COLS + MAX_DIRECT_KEY_NUM; ++ ++ int i; ++ /* free occupied pins */ ++ for (i = KEYPAD_MATRIX_GPIO_IN_PIN; i < pins; i++) ++ gpio_free(i); ++} ++ ++static int __devinit mrst_keypad_probe(struct pci_dev *pdev, ++ const struct pci_device_id *ent) ++{ ++ struct mrst_keypad *keypad; ++ struct input_dev *input_dev; ++ int error; ++ ++#ifndef MODULE ++ printk(KERN_INFO MRST_KEYPAD_DRIVER_NAME "\n"); ++#endif ++ ++ keypad = kzalloc(sizeof(struct mrst_keypad), GFP_KERNEL); ++ if (keypad == NULL) { ++ dev_err(&pdev->dev, "failed to allocate driver data\n"); ++ return -ENOMEM; ++ } ++ ++ error = pci_enable_device(pdev); ++ if (error || (pdev->irq < 0)) { ++ dev_err(&pdev->dev, "failed to enable device/get irq\n"); ++ error = -ENXIO; ++ goto failed_free; ++ } ++ ++ error = pci_request_regions(pdev, DRV_NAME); ++ if (error) { ++ dev_err(&pdev->dev, "failed to request I/O memory\n"); ++ goto failed_free; ++ } ++ ++ keypad->mmio_base = ioremap(pci_resource_start(pdev, 0), ++ pci_resource_len(pdev, 0)); ++ if (keypad->mmio_base == NULL) { ++ dev_err(&pdev->dev, "failed to remap I/O memory\n"); ++ error = -ENXIO; ++ goto failed_free_mem; ++ } ++ ++ /* Create and register the input driver. */ ++ input_dev = input_allocate_device(); ++ if (!input_dev) { ++ dev_err(&pdev->dev, "failed to allocate input device\n"); ++ error = -ENOMEM; ++ goto failed_free_io; ++ } ++ ++ input_dev->name = pci_name(pdev); ++ input_dev->id.bustype = BUS_PCI; ++ input_dev->open = mrst_keypad_open; ++ input_dev->close = mrst_keypad_close; ++ input_dev->dev.parent = &pdev->dev; ++ ++ input_dev->keycode = keypad->matrix_keycodes; ++ input_dev->keycodesize = sizeof(unsigned int); ++ input_dev->keycodemax = ARRAY_SIZE(mrst_keycode); ++ ++ keypad->input_dev = input_dev; ++ keypad->fn = 0; ++ keypad->numlck = 0; ++ /*FIXME*/keypad->count = 0; ++ input_set_drvdata(input_dev, keypad); ++ ++ input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | ++ BIT_MASK(EV_REL); ++ ++ mrst_keypad_build_keycode(keypad); ++ pci_set_drvdata(pdev, keypad); ++ ++ error = request_irq(pdev->irq, mrst_keypad_irq_handler, IRQF_SHARED, ++ pci_name(pdev), keypad); ++ if (error) { ++ dev_err(&pdev->dev, "failed to request IRQ\n"); ++ goto failed_free_dev; ++ } ++ ++ /* Register the input device */ ++ error = input_register_device(input_dev); ++ if (error) { ++ dev_err(&pdev->dev, "failed to register input device\n"); ++ goto failed_free_irq; ++ } ++ ++ printk(KERN_INFO "*** keypad driver load successfully ***\n"); ++ return 0; ++ ++failed_free_irq: ++ free_irq(pdev->irq, keypad); ++ pci_set_drvdata(pdev, NULL); ++failed_free_dev: ++ input_free_device(input_dev); ++failed_free_io: ++ iounmap(keypad->mmio_base); ++failed_free_mem: ++ pci_release_regions(pdev); ++failed_free: ++ kfree(keypad); ++ return error; ++} ++ ++static void __devexit mrst_keypad_remove(struct pci_dev *pdev) ++{ ++ struct mrst_keypad *keypad = pci_get_drvdata(pdev); ++ int i; ++ int pins = KEYPAD_MATRIX_GPIO_IN_PIN + MAX_MATRIX_KEY_ROWS + ++ MAX_MATRIX_KEY_COLS + MAX_DIRECT_KEY_NUM; ++ ++ for (i = pins - 1; i > KEYPAD_MATRIX_GPIO_IN_PIN; i--) ++ gpio_free(i); ++ ++ free_irq(pdev->irq, keypad); ++ input_unregister_device(keypad->input_dev); ++ iounmap(keypad->mmio_base); ++ pci_release_regions(pdev); ++ pci_set_drvdata(pdev, NULL); ++ kfree(keypad); ++} ++ ++ ++static struct pci_driver mrst_keypad_driver = { ++ .name = DRV_NAME, ++ .id_table = keypad_pci_tbl, ++ .probe = mrst_keypad_probe, ++ .remove = __devexit_p(mrst_keypad_remove), ++#ifdef CONFIG_PM ++ .suspend = NULL, ++ .resume = NULL, ++#endif /* CONFIG_PM */ ++}; ++ ++static int __init mrst_keypad_init(void) ++{ ++ return pci_register_driver(&mrst_keypad_driver); ++} ++ ++static void __exit mrst_keypad_exit(void) ++{ ++ pci_unregister_driver(&mrst_keypad_driver); ++} ++ ++module_init(mrst_keypad_init); ++module_exit(mrst_keypad_exit); ++ ++MODULE_DESCRIPTION("MRST Keypad Controller Driver"); ++MODULE_LICENSE("GPL v2"); +-- +1.6.2.5 + -- cgit v1.2.3