diff options
Diffstat (limited to 'meta/recipes-kernel/linux/linux-netbook-2.6.33.2/linux-2.6.34-moorestown-keypad-driver.patch')
-rw-r--r-- | meta/recipes-kernel/linux/linux-netbook-2.6.33.2/linux-2.6.34-moorestown-keypad-driver.patch | 839 |
1 files changed, 0 insertions, 839 deletions
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 deleted file mode 100644 index 453acc328..000000000 --- a/meta/recipes-kernel/linux/linux-netbook-2.6.33.2/linux-2.6.34-moorestown-keypad-driver.patch +++ /dev/null @@ -1,839 +0,0 @@ -From 3e65e5210bc3c81a58c60e365ee044f2e6044efc Mon Sep 17 00:00:00 2001 -From: Zheng Ba <zheng.ba@intel.com> -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 <zheng.ba@intel.com> ---- - 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 <giometti@linux.it> -+ * pxa27x_keypad.c is based on a previous implementation by Kevin O'Connor -+ * <kevin_at_keconnor.net> and Alex Osborne <bobofdoom@gmail.com> and -+ * on some suggestions by Nicolas Pitre <nico@cam.org> -+ * -+ * 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 <linux/kernel.h> -+#include <linux/module.h> -+#include <linux/pci.h> -+#include <linux/init.h> -+#include <linux/interrupt.h> -+#include <linux/input.h> -+#include <linux/device.h> -+#include <linux/err.h> -+#include <linux/gpio.h> -+ -+/* -+ * 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 - |