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-rw-r--r--recipes/kexecboot/linux-kexecboot-2.6.24/tosa/0012-Tosa-keyboard-support.patch593
1 files changed, 593 insertions, 0 deletions
diff --git a/recipes/kexecboot/linux-kexecboot-2.6.24/tosa/0012-Tosa-keyboard-support.patch b/recipes/kexecboot/linux-kexecboot-2.6.24/tosa/0012-Tosa-keyboard-support.patch
new file mode 100644
index 0000000000..0fa10ebd4c
--- /dev/null
+++ b/recipes/kexecboot/linux-kexecboot-2.6.24/tosa/0012-Tosa-keyboard-support.patch
@@ -0,0 +1,593 @@
+From 6d377e8f80ce421e6842ac5f42081345fbc70002 Mon Sep 17 00:00:00 2001
+From: Dmitry Baryshkov <dbaryshkov@gmail.com>
+Date: Wed, 9 Jan 2008 01:27:41 +0300
+Subject: [PATCH 12/64] Tosa keyboard support
+
+Support keyboard on tosa (Sharp Zaurus SL-6000x).
+Largely based on patches by Dirk Opfer.
+
+Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
+---
+ arch/arm/mach-pxa/tosa.c | 43 ++++
+ drivers/input/keyboard/Kconfig | 21 ++
+ drivers/input/keyboard/Makefile | 1 +
+ drivers/input/keyboard/tosakbd.c | 415 ++++++++++++++++++++++++++++++++++++++
+ include/asm-arm/arch-pxa/tosa.h | 30 +++
+ 5 files changed, 510 insertions(+), 0 deletions(-)
+ create mode 100644 drivers/input/keyboard/tosakbd.c
+
+diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
+index 240fd04..e7e0f52 100644
+--- a/arch/arm/mach-pxa/tosa.c
++++ b/arch/arm/mach-pxa/tosa.c
+@@ -21,6 +21,8 @@
+ #include <linux/mmc/host.h>
+ #include <linux/pm.h>
+ #include <linux/delay.h>
++#include <linux/gpio_keys.h>
++#include <linux/input.h>
+
+ #include <asm/setup.h>
+ #include <asm/memory.h>
+@@ -253,6 +255,46 @@ static struct platform_device tosakbd_device = {
+ .id = -1,
+ };
+
++static struct gpio_keys_button tosa_gpio_keys[] = {
++ {
++ .type = EV_PWR,
++ .code = KEY_SUSPEND,
++ .gpio = TOSA_GPIO_ON_KEY,
++ .desc = "On key",
++ .wakeup = 1,
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = TOSA_KEY_RECORD,
++ .gpio = TOSA_GPIO_RECORD_BTN,
++ .desc = "Record Button",
++ .wakeup = 1,
++ .active_low = 1,
++ },
++ {
++ .type = EV_KEY,
++ .code = TOSA_KEY_SYNC,
++ .gpio = TOSA_GPIO_SYNC,
++ .desc = "Sync Button",
++ .wakeup = 1,
++ .active_low = 1,
++ },
++};
++
++static struct gpio_keys_platform_data tosa_gpio_keys_platform_data = {
++ .buttons = tosa_gpio_keys,
++ .nbuttons = ARRAY_SIZE(tosa_gpio_keys),
++};
++
++static struct platform_device tosa_gpio_keys_device = {
++ .name = "gpio-keys",
++ .id = -1,
++ .dev = {
++ .platform_data = &tosa_gpio_keys_platform_data,
++ },
++};
++
+ /*
+ * Tosa LEDs
+ */
+@@ -265,6 +307,7 @@ static struct platform_device *devices[] __initdata = {
+ &tosascoop_device,
+ &tosascoop_jc_device,
+ &tosakbd_device,
++ &tosa_gpio_keys_device,
+ &tosaled_device,
+ };
+
+diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
+index 086d58c..0c32762 100644
+--- a/drivers/input/keyboard/Kconfig
++++ b/drivers/input/keyboard/Kconfig
+@@ -154,6 +154,27 @@ config KEYBOARD_SPITZ
+ To compile this driver as a module, choose M here: the
+ module will be called spitzkbd.
+
++config KEYBOARD_TOSA
++ tristate "Tosa keyboard"
++ depends on MACH_TOSA
++ default y
++ help
++ Say Y here to enable the keyboard on the Sharp Zaurus SL-6000x (Tosa)
++
++ To compile this driver as a module, choose M here: the
++ module will be called tosakbd.
++
++config KEYBOARD_TOSA_USE_EXT_KEYCODES
++ bool "Tosa keyboard: use extended keycodes"
++ depends on KEYBOARD_TOSA
++ default n
++ help
++ Say Y here to enable the tosa keyboard driver to generate extended
++ (>= 127) keycodes. Be aware, that they can't be correctly interpreted
++ by either console keyboard driver or by Kdrive keybd driver.
++
++ Say Y only if you know, what you are doing!
++
+ config KEYBOARD_AMIGA
+ tristate "Amiga keyboard"
+ depends on AMIGA
+diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
+index e97455f..6caa065 100644
+--- a/drivers/input/keyboard/Makefile
++++ b/drivers/input/keyboard/Makefile
+@@ -15,6 +15,7 @@ obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o
+ obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o
+ obj-$(CONFIG_KEYBOARD_CORGI) += corgikbd.o
+ obj-$(CONFIG_KEYBOARD_SPITZ) += spitzkbd.o
++obj-$(CONFIG_KEYBOARD_TOSA) += tosakbd.o
+ obj-$(CONFIG_KEYBOARD_HIL) += hil_kbd.o
+ obj-$(CONFIG_KEYBOARD_HIL_OLD) += hilkbd.o
+ obj-$(CONFIG_KEYBOARD_OMAP) += omap-keypad.o
+diff --git a/drivers/input/keyboard/tosakbd.c b/drivers/input/keyboard/tosakbd.c
+new file mode 100644
+index 0000000..3884d1e
+--- /dev/null
++++ b/drivers/input/keyboard/tosakbd.c
+@@ -0,0 +1,415 @@
++/*
++ * Keyboard driver for Sharp Tosa models (SL-6000x)
++ *
++ * Copyright (c) 2005 Dirk Opfer
++ * Copyright (c) 2007 Dmitry Baryshkov
++ *
++ * Based on xtkbd.c/locomkbd.c/corgikbd.c
++ *
++ * 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 <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/input.h>
++#include <linux/delay.h>
++#include <linux/interrupt.h>
++
++#include <asm/arch/gpio.h>
++#include <asm/arch/tosa.h>
++
++#define KB_ROWMASK(r) (1 << (r))
++#define SCANCODE(r, c) (((r)<<4) + (c) + 1)
++#define NR_SCANCODES SCANCODE(TOSA_KEY_SENSE_NUM - 1, TOSA_KEY_STROBE_NUM - 1) + 1
++
++#define SCAN_INTERVAL (HZ/10)
++
++#define KB_DISCHARGE_DELAY 10
++#define KB_ACTIVATE_DELAY 10
++
++static unsigned int tosakbd_keycode[NR_SCANCODES] = {
++0,
++0, KEY_W, 0, 0, 0, KEY_K, KEY_BACKSPACE, KEY_P,
++0, 0, 0, 0, 0, 0, 0, 0,
++KEY_Q, KEY_E, KEY_T, KEY_Y, 0, KEY_O, KEY_I, KEY_COMMA,
++0, 0, 0, 0, 0, 0, 0, 0,
++KEY_A, KEY_D, KEY_G, KEY_U, 0, KEY_L, KEY_ENTER, KEY_DOT,
++0, 0, 0, 0, 0, 0, 0, 0,
++KEY_Z, KEY_C, KEY_V, KEY_J, TOSA_KEY_ADDRESSBOOK, TOSA_KEY_CANCEL, TOSA_KEY_CENTER, TOSA_KEY_OK,
++KEY_LEFTSHIFT, 0, 0, 0, 0, 0, 0, 0,
++KEY_S, KEY_R, KEY_B, KEY_N, TOSA_KEY_CALENDAR, TOSA_KEY_HOMEPAGE, KEY_LEFTCTRL, TOSA_KEY_LIGHT,
++0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0,
++KEY_TAB, KEY_SLASH, KEY_H, KEY_M, TOSA_KEY_MENU, 0, KEY_UP, 0,
++0, 0, TOSA_KEY_FN, 0, 0, 0, 0, 0,
++KEY_X, KEY_F, KEY_SPACE, KEY_APOSTROPHE, TOSA_KEY_MAIL, KEY_LEFT, KEY_DOWN, KEY_RIGHT,
++0, 0, 0,
++};
++
++struct tosakbd {
++ unsigned int keycode[ARRAY_SIZE(tosakbd_keycode)];
++ struct input_dev *input;
++
++ spinlock_t lock; /* protect kbd scanning */
++ struct timer_list timer;
++};
++
++
++/* Helper functions for reading the keyboard matrix
++ * Note: We should really be using pxa_gpio_mode to alter GPDR but it
++ * requires a function call per GPIO bit which is excessive
++ * when we need to access 12 bits at once, multiple times.
++ * These functions must be called within local_irq_save()/local_irq_restore()
++ * or similar.
++ */
++#define GET_ROWS_STATUS(c) ((GPLR2 & TOSA_GPIO_ALL_SENSE_BIT) >> TOSA_GPIO_ALL_SENSE_RSHIFT)
++
++static inline void tosakbd_discharge_all(void)
++{
++ /* STROBE All HiZ */
++ GPCR1 = TOSA_GPIO_HIGH_STROBE_BIT;
++ GPDR1 &= ~TOSA_GPIO_HIGH_STROBE_BIT;
++ GPCR2 = TOSA_GPIO_LOW_STROBE_BIT;
++ GPDR2 &= ~TOSA_GPIO_LOW_STROBE_BIT;
++}
++
++static inline void tosakbd_activate_all(void)
++{
++ /* STROBE ALL -> High */
++ GPSR1 = TOSA_GPIO_HIGH_STROBE_BIT;
++ GPDR1 |= TOSA_GPIO_HIGH_STROBE_BIT;
++ GPSR2 = TOSA_GPIO_LOW_STROBE_BIT;
++ GPDR2 |= TOSA_GPIO_LOW_STROBE_BIT;
++
++ udelay(KB_DISCHARGE_DELAY);
++
++ /* STATE CLEAR */
++ GEDR2 |= TOSA_GPIO_ALL_SENSE_BIT;
++}
++
++static inline void tosakbd_activate_col(int col)
++{
++ if (col <= 5) {
++ /* STROBE col -> High, not col -> HiZ */
++ GPSR1 = TOSA_GPIO_STROBE_BIT(col);
++ GPDR1 = (GPDR1 & ~TOSA_GPIO_HIGH_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col);
++ } else {
++ /* STROBE col -> High, not col -> HiZ */
++ GPSR2 = TOSA_GPIO_STROBE_BIT(col);
++ GPDR2 = (GPDR2 & ~TOSA_GPIO_LOW_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col);
++ }
++}
++
++static inline void tosakbd_reset_col(int col)
++{
++ if (col <= 5) {
++ /* STROBE col -> Low */
++ GPCR1 = TOSA_GPIO_STROBE_BIT(col);
++ /* STROBE col -> out, not col -> HiZ */
++ GPDR1 = (GPDR1 & ~TOSA_GPIO_HIGH_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col);
++ } else {
++ /* STROBE col -> Low */
++ GPCR2 = TOSA_GPIO_STROBE_BIT(col);
++ /* STROBE col -> out, not col -> HiZ */
++ GPDR2 = (GPDR2 & ~TOSA_GPIO_LOW_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col);
++ }
++}
++/*
++ * The tosa keyboard only generates interrupts when a key is pressed.
++ * So when a key is pressed, we enable a timer. This timer scans the
++ * keyboard, and this is how we detect when the key is released.
++ */
++
++/* Scan the hardware keyboard and push any changes up through the input layer */
++static void tosakbd_scankeyboard(struct platform_device *dev)
++{
++ struct tosakbd *tosakbd = platform_get_drvdata(dev);
++ unsigned int row, col, rowd;
++ unsigned long flags;
++ unsigned int num_pressed = 0;
++
++ spin_lock_irqsave(&tosakbd->lock, flags);
++
++ for (col = 0; col < TOSA_KEY_STROBE_NUM; col++) {
++ /*
++ * Discharge the output driver capacitatance
++ * in the keyboard matrix. (Yes it is significant..)
++ */
++ tosakbd_discharge_all();
++ udelay(KB_DISCHARGE_DELAY);
++
++ tosakbd_activate_col(col);
++ udelay(KB_ACTIVATE_DELAY);
++
++ rowd = GET_ROWS_STATUS(col);
++
++ for (row = 0; row < TOSA_KEY_SENSE_NUM; row++) {
++ unsigned int scancode, pressed;
++ scancode = SCANCODE(row, col);
++ pressed = rowd & KB_ROWMASK(row);
++
++ if (pressed && !tosakbd->keycode[scancode])
++ dev_warn(&dev->dev,
++ "unhandled scancode: 0x%02x\n",
++ scancode);
++
++ input_report_key(tosakbd->input,
++ tosakbd->keycode[scancode],
++ pressed);
++ if (pressed)
++ num_pressed++;
++ }
++
++ tosakbd_reset_col(col);
++ }
++
++ tosakbd_activate_all();
++
++ input_sync(tosakbd->input);
++
++ /* if any keys are pressed, enable the timer */
++ if (num_pressed)
++ mod_timer(&tosakbd->timer, jiffies + SCAN_INTERVAL);
++
++ spin_unlock_irqrestore(&tosakbd->lock, flags);
++}
++
++/*
++ * tosa keyboard interrupt handler.
++ */
++static irqreturn_t tosakbd_interrupt(int irq, void *__dev)
++{
++ struct platform_device *dev = __dev;
++ struct tosakbd *tosakbd = platform_get_drvdata(dev);
++
++ if (!timer_pending(&tosakbd->timer)) {
++ /** wait chattering delay **/
++ udelay(20);
++ tosakbd_scankeyboard(dev);
++ }
++
++ return IRQ_HANDLED;
++}
++
++/*
++ * tosa timer checking for released keys
++ */
++static void tosakbd_timer_callback(unsigned long __dev)
++{
++ struct platform_device *dev = (struct platform_device *)__dev;
++ tosakbd_scankeyboard(dev);
++}
++
++#ifdef CONFIG_PM
++static int tosakbd_suspend(struct platform_device *dev, pm_message_t state)
++{
++ struct tosakbd *tosakbd = platform_get_drvdata(dev);
++
++ del_timer_sync(&tosakbd->timer);
++
++ return 0;
++}
++
++static int tosakbd_resume(struct platform_device *dev)
++{
++ tosakbd_scankeyboard(dev);
++
++ return 0;
++}
++#else
++#define tosakbd_suspend NULL
++#define tosakbd_resume NULL
++#endif
++
++static int __devinit tosakbd_probe(struct platform_device *pdev) {
++
++ int i;
++ struct tosakbd *tosakbd;
++ struct input_dev *input_dev;
++ int error;
++
++ tosakbd = kzalloc(sizeof(struct tosakbd), GFP_KERNEL);
++ if (!tosakbd)
++ return -ENOMEM;
++
++ input_dev = input_allocate_device();
++ if (!input_dev) {
++ kfree(tosakbd);
++ return -ENOMEM;
++ }
++
++ platform_set_drvdata(pdev, tosakbd);
++
++ spin_lock_init(&tosakbd->lock);
++
++ /* Init Keyboard rescan timer */
++ init_timer(&tosakbd->timer);
++ tosakbd->timer.function = tosakbd_timer_callback;
++ tosakbd->timer.data = (unsigned long) pdev;
++
++ tosakbd->input = input_dev;
++
++ input_set_drvdata(input_dev, tosakbd);
++ input_dev->name = "Tosa Keyboard";
++ input_dev->phys = "tosakbd/input0";
++ input_dev->dev.parent = &pdev->dev;
++
++ input_dev->id.bustype = BUS_HOST;
++ input_dev->id.vendor = 0x0001;
++ input_dev->id.product = 0x0001;
++ input_dev->id.version = 0x0100;
++
++ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP);
++ input_dev->keycode = tosakbd->keycode;
++ input_dev->keycodesize = sizeof(unsigned int);
++ input_dev->keycodemax = ARRAY_SIZE(tosakbd_keycode);
++
++ memcpy(tosakbd->keycode, tosakbd_keycode, sizeof(tosakbd_keycode));
++
++ for (i = 0; i < ARRAY_SIZE(tosakbd_keycode); i++)
++ __set_bit(tosakbd->keycode[i], input_dev->keybit);
++ clear_bit(0, input_dev->keybit);
++
++ /* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */
++ for (i = 0; i < TOSA_KEY_SENSE_NUM; i++) {
++ int gpio = TOSA_GPIO_KEY_SENSE(i);
++ int irq;
++ error = gpio_request(gpio, "tosakbd");
++ if (error < 0) {
++ printk(KERN_ERR "tosakbd: failed to request GPIO %d, "
++ " error %d\n", gpio, error);
++ goto fail;
++ }
++
++ error = gpio_direction_input(TOSA_GPIO_KEY_SENSE(i));
++ if (error < 0) {
++ printk(KERN_ERR "tosakbd: failed to configure input"
++ " direction for GPIO %d, error %d\n",
++ gpio, error);
++ gpio_free(gpio);
++ goto fail;
++ }
++
++ irq = gpio_to_irq(gpio);
++ if (irq < 0) {
++ error = irq;
++ printk(KERN_ERR "gpio-keys: Unable to get irq number"
++ " for GPIO %d, error %d\n",
++ gpio, error);
++ gpio_free(gpio);
++ goto fail;
++ }
++
++ error = request_irq(irq, tosakbd_interrupt,
++ IRQF_DISABLED | IRQF_TRIGGER_RISING,
++ "tosakbd", pdev);
++
++ if (error) {
++ printk("tosakbd: Can't get IRQ: %d: error %d!\n",
++ irq, error);
++ gpio_free(gpio);
++ goto fail;
++ }
++ }
++
++ /* Set Strobe lines as outputs - set high */
++ for (i = 0; i < TOSA_KEY_STROBE_NUM; i++) {
++ int gpio = TOSA_GPIO_KEY_STROBE(i);
++ error = gpio_request(gpio, "tosakbd");
++ if (error < 0) {
++ printk(KERN_ERR "tosakbd: failed to request GPIO %d, "
++ " error %d\n", gpio, error);
++ goto fail2;
++ }
++
++ error = gpio_direction_output(gpio, 1);
++ if (error < 0) {
++ printk(KERN_ERR "tosakbd: failed to configure input"
++ " direction for GPIO %d, error %d\n",
++ gpio, error);
++ gpio_free(gpio);
++ goto fail;
++ }
++
++ }
++
++ error = input_register_device(input_dev);
++ if (error) {
++ printk(KERN_ERR "tosakbd: Unable to register input device, "
++ "error: %d\n", error);
++ goto fail;
++ }
++
++ printk(KERN_INFO "input: Tosa Keyboard Registered\n");
++
++ return 0;
++
++fail2:
++ while (--i >= 0)
++ gpio_free(TOSA_GPIO_KEY_STROBE(i));
++
++ i = TOSA_KEY_SENSE_NUM;
++fail:
++ while (--i >= 0) {
++ free_irq(gpio_to_irq(TOSA_GPIO_KEY_SENSE(i)), pdev);
++ gpio_free(TOSA_GPIO_KEY_SENSE(i));
++ }
++
++ platform_set_drvdata(pdev, NULL);
++ input_free_device(input_dev);
++ kfree(tosakbd);
++
++ return error;
++}
++
++static int __devexit tosakbd_remove(struct platform_device *dev) {
++
++ int i;
++ struct tosakbd *tosakbd = platform_get_drvdata(dev);
++
++ for (i = 0; i < TOSA_KEY_STROBE_NUM; i++)
++ gpio_free(TOSA_GPIO_KEY_STROBE(i));
++
++ for (i = 0; i < TOSA_KEY_SENSE_NUM; i++) {
++ free_irq(gpio_to_irq(TOSA_GPIO_KEY_SENSE(i)), dev);
++ gpio_free(TOSA_GPIO_KEY_SENSE(i));
++ }
++
++ del_timer_sync(&tosakbd->timer);
++
++ input_unregister_device(tosakbd->input);
++
++ kfree(tosakbd);
++
++ return 0;
++}
++
++static struct platform_driver tosakbd_driver = {
++ .probe = tosakbd_probe,
++ .remove = __devexit_p(tosakbd_remove),
++ .suspend = tosakbd_suspend,
++ .resume = tosakbd_resume,
++ .driver = {
++ .name = "tosa-keyboard",
++ },
++};
++
++static int __devinit tosakbd_init(void)
++{
++ return platform_driver_register(&tosakbd_driver);
++}
++
++static void __exit tosakbd_exit(void)
++{
++ platform_driver_unregister(&tosakbd_driver);
++}
++
++module_init(tosakbd_init);
++module_exit(tosakbd_exit);
++
++MODULE_AUTHOR("Dirk Opfer <Dirk@Opfer-Online.de>");
++MODULE_DESCRIPTION("Tosa Keyboard Driver");
++MODULE_LICENSE("GPL v2");
+diff --git a/include/asm-arm/arch-pxa/tosa.h b/include/asm-arm/arch-pxa/tosa.h
+index c3364a2..c05e4fa 100644
+--- a/include/asm-arm/arch-pxa/tosa.h
++++ b/include/asm-arm/arch-pxa/tosa.h
+@@ -163,4 +163,34 @@
+
+ extern struct platform_device tosascoop_jc_device;
+ extern struct platform_device tosascoop_device;
++
++#define TOSA_KEY_SYNC KEY_102ND /* ??? */
++
++
++#ifndef CONFIG_KEYBOARD_TOSA_USE_EXT_KEYCODES
++#define TOSA_KEY_RECORD KEY_YEN
++#define TOSA_KEY_ADDRESSBOOK KEY_KATAKANA
++#define TOSA_KEY_CANCEL KEY_ESC
++#define TOSA_KEY_CENTER KEY_HIRAGANA
++#define TOSA_KEY_OK KEY_HENKAN
++#define TOSA_KEY_CALENDAR KEY_KATAKANAHIRAGANA
++#define TOSA_KEY_HOMEPAGE KEY_HANGEUL
++#define TOSA_KEY_LIGHT KEY_MUHENKAN
++#define TOSA_KEY_MENU KEY_HANJA
++#define TOSA_KEY_FN KEY_RIGHTALT
++#define TOSA_KEY_MAIL KEY_ZENKAKUHANKAKU
++#else
++#define TOSA_KEY_RECORD KEY_RECORD
++#define TOSA_KEY_ADDRESSBOOK KEY_ADDRESSBOOK
++#define TOSA_KEY_CANCEL KEY_CANCEL
++#define TOSA_KEY_CENTER KEY_SELECT /* ??? */
++#define TOSA_KEY_OK KEY_OK
++#define TOSA_KEY_CALENDAR KEY_CALENDAR
++#define TOSA_KEY_HOMEPAGE KEY_HOMEPAGE
++#define TOSA_KEY_LIGHT KEY_KBDILLUMTOGGLE
++#define TOSA_KEY_MENU KEY_MENU
++#define TOSA_KEY_FN KEY_FN
++#define TOSA_KEY_MAIL KEY_MAIL
++#endif
++
+ #endif /* _ASM_ARCH_TOSA_H_ */
+--
+1.5.3.8
+