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Diffstat (limited to 'meta-moblin/packages/linux/linux-moblin-2.6.33.2/linux-2.6.34-moorestown-keypad-driver.patch')
-rw-r--r--meta-moblin/packages/linux/linux-moblin-2.6.33.2/linux-2.6.34-moorestown-keypad-driver.patch839
1 files changed, 0 insertions, 839 deletions
diff --git a/meta-moblin/packages/linux/linux-moblin-2.6.33.2/linux-2.6.34-moorestown-keypad-driver.patch b/meta-moblin/packages/linux/linux-moblin-2.6.33.2/linux-2.6.34-moorestown-keypad-driver.patch
deleted file mode 100644
index 453acc328..000000000
--- a/meta-moblin/packages/linux/linux-moblin-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
-
generated by cgit v1.2.3 (git 2.39.1) at 2024-08-05 16:30:18 +0000