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openwrt/target/linux/s3c24xx/patches-2.6.24/1050-s3c2410-qt2410-buttons...

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From 9deba66bfaf3a3293436e405830a666df8f36ed6 Mon Sep 17 00:00:00 2001
From: mokopatches <mokopatches@openmoko.org>
Date: Sun, 13 Apr 2008 07:23:49 +0100
Subject: [PATCH] s3c2410-qt2410-buttons.patch
---
arch/arm/mach-s3c2410/mach-qt2410.c | 18 +++
drivers/input/keyboard/Kconfig | 5 +
drivers/input/keyboard/Makefile | 1 +
drivers/input/keyboard/qt2410kbd.c | 233 +++++++++++++++++++++++++++++++++++
4 files changed, 257 insertions(+), 0 deletions(-)
create mode 100644 drivers/input/keyboard/qt2410kbd.c
diff --git a/arch/arm/mach-s3c2410/mach-qt2410.c b/arch/arm/mach-s3c2410/mach-qt2410.c
index 6f7b56d..daf94cd 100644
--- a/arch/arm/mach-s3c2410/mach-qt2410.c
+++ b/arch/arm/mach-s3c2410/mach-qt2410.c
@@ -321,6 +321,24 @@ static int __init qt2410_tft_setup(char *str)
__setup("tft=", qt2410_tft_setup);
+static struct resource qt2410_button_resources[] = {
+ [0] = {
+ .start = S3C2410_GPF0,
+ .end = S3C2410_GPF0,
+ },
+ [1] = {
+ .start = S3C2410_GPF2,
+ .end = S3C2410_GPF2,
+ },
+};
+
+struct platform_device qt2410_button_dev = {
+ .name ="qt2410-button",
+ .num_resources = ARRAY_SIZE(qt2410_button_resources),
+ .resource = qt2410_button_resources,
+};
+
+
static void __init qt2410_map_io(void)
{
s3c24xx_init_io(qt2410_iodesc, ARRAY_SIZE(qt2410_iodesc));
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 3b9990e..a61ca45 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -304,5 +304,10 @@ config KEYBOARD_NEO1973
To compile this driver as a module, choose M here: the
module will be called neo1973kbd.
+config KEYBOARD_QT2410
+ tristate "QT2410 buttons"
+ depends on MACH_QT2410
+ default y
+
endif
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index 68ecfc5..34bfc33 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_NEO1973) += neo1973kbd.o
+obj-$(CONFIG_KEYBOARD_QT2410) += qt2410kbd.o
obj-$(CONFIG_KEYBOARD_SPITZ) += spitzkbd.o
obj-$(CONFIG_KEYBOARD_HIL) += hil_kbd.o
obj-$(CONFIG_KEYBOARD_HIL_OLD) += hilkbd.o
diff --git a/drivers/input/keyboard/qt2410kbd.c b/drivers/input/keyboard/qt2410kbd.c
new file mode 100644
index 0000000..4d497a3
--- /dev/null
+++ b/drivers/input/keyboard/qt2410kbd.c
@@ -0,0 +1,233 @@
+/*
+ * Keyboard driver for Armzone QT2410
+ *
+ * (C) 2006 by OpenMoko, Inc.
+ * Author: Harald Welte <laforge@openmoko.org>
+ * All rights reserved.
+ *
+ * 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/delay.h>
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/jiffies.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+
+#include <asm/hardware.h>
+#include <asm/arch/gta01.h>
+
+struct gta01kbd {
+ struct input_dev *input;
+ unsigned int suspended;
+ unsigned long suspend_jiffies;
+};
+
+static irqreturn_t gta01kbd_interrupt(int irq, void *dev_id)
+{
+ struct gta01kbd *gta01kbd_data = dev_id;
+
+ /* FIXME: use GPIO from platform_dev resources */
+ if (s3c2410_gpio_getpin(S3C2410_GPF0))
+ input_report_key(gta01kbd_data->input, KEY_PHONE, 1);
+ else
+ input_report_key(gta01kbd_data->input, KEY_PHONE, 0);
+
+ input_sync(gta01kbd_data->input);
+
+ return IRQ_HANDLED;
+}
+
+
+#ifdef CONFIG_PM
+static int gta01kbd_suspend(struct platform_device *dev, pm_message_t state)
+{
+ struct gta01kbd *gta01kbd = platform_get_drvdata(dev);
+
+ gta01kbd->suspended = 1;
+
+ return 0;
+}
+
+static int gta01kbd_resume(struct platform_device *dev)
+{
+ struct gta01kbd *gta01kbd = platform_get_drvdata(dev);
+
+ gta01kbd->suspended = 0;
+
+ return 0;
+}
+#else
+#define gta01kbd_suspend NULL
+#define gta01kbd_resume NULL
+#endif
+
+static int gta01kbd_probe(struct platform_device *pdev)
+{
+ struct gta01kbd *gta01kbd;
+ struct input_dev *input_dev;
+ int irq_911;
+ int rc = 0;
+
+ gta01kbd = kzalloc(sizeof(struct gta01kbd), GFP_KERNEL);
+ if (!gta01kbd) {
+ rc = -ENOMEM;
+ goto bail;
+ }
+ input_dev = input_allocate_device();
+ if (!gta01kbd || !input_dev) {
+ rc = -ENOMEM;
+ goto bail_free;
+ }
+
+ if (pdev->resource[0].flags != 0) {\
+ rc = -EINVAL;
+ goto bail_free_dev;
+ }
+
+ irq_911 = s3c2410_gpio_getirq(pdev->resource[0].start);
+ if (irq_911 < 0) {
+ rc = -EINVAL;
+ goto bail_free_dev;
+ }
+
+ platform_set_drvdata(pdev, gta01kbd);
+
+ gta01kbd->input = input_dev;
+
+#if 0
+ spin_lock_init(&gta01kbd->lock);
+ /* Init Keyboard rescan timer */
+ init_timer(&corgikbd->timer);
+ corgikbd->timer.function = corgikbd_timer_callback;
+ corgikbd->timer.data = (unsigned long) corgikbd;
+
+ /* Init Hinge Timer */
+ init_timer(&corgikbd->htimer);
+ corgikbd->htimer.function = corgikbd_hinge_timer;
+ corgikbd->htimer.data = (unsigned long) corgikbd;
+
+ corgikbd->suspend_jiffies=jiffies;
+
+ memcpy(corgikbd->keycode, corgikbd_keycode, sizeof(corgikbd->keycode));
+#endif
+
+ input_dev->name = "QT2410 Buttons";
+ input_dev->phys = "qt2410kbd/input0";
+ input_dev->id.bustype = BUS_HOST;
+ input_dev->id.vendor = 0x0001;
+ input_dev->id.product = 0x0001;
+ input_dev->id.version = 0x0100;
+ input_dev->cdev.dev = &pdev->dev;
+ input_dev->private = gta01kbd;
+
+ input_dev->evbit[0] = BIT(EV_KEY);
+#if 0
+ input_dev->keycode = gta01kbd->keycode;
+ input_dev->keycodesize = sizeof(unsigned char);
+ input_dev->keycodemax = ARRAY_SIZE(corgikbd_keycode);
+
+ for (i = 0; i < ARRAY_SIZE(corgikbd_keycode); i++)
+ set_bit(corgikbd->keycode[i], input_dev->keybit);
+ clear_bit(0, input_dev->keybit);
+ set_bit(SW_LID, input_dev->swbit);
+ set_bit(SW_TABLET_MODE, input_dev->swbit);
+ set_bit(SW_HEADPHONE_INSERT, input_dev->swbit);
+#endif
+
+ rc = input_register_device(gta01kbd->input);
+ if (rc)
+ goto bail_free_dev;
+
+ s3c2410_gpio_cfgpin(S3C2410_GPF0, S3C2410_GPF0_EINT0);
+ if (request_irq(irq_911, gta01kbd_interrupt,
+ IRQF_DISABLED | IRQF_TRIGGER_RISING |
+ IRQF_TRIGGER_FALLING, "qt2410kbd_eint0", gta01kbd))
+ printk(KERN_WARNING "gta01kbd: Can't get IRQ\n");
+ enable_irq_wake(irq_911);
+
+ /* FIXME: headphone insert */
+
+#if 0
+ mod_timer(&corgikbd->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL));
+
+ /* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */
+ for (i = 0; i < CORGI_KEY_SENSE_NUM; i++) {
+ pxa_gpio_mode(CORGI_GPIO_KEY_SENSE(i) | GPIO_IN);
+ if (request_irq(CORGI_IRQ_GPIO_KEY_SENSE(i), corgikbd_interrupt,
+ SA_INTERRUPT | SA_TRIGGER_RISING,
+ "corgikbd", corgikbd))
+ printk(KERN_WARNING "corgikbd: Can't get IRQ: %d!\n", i);
+ }
+
+ /* Set Strobe lines as outputs - set high */
+ for (i = 0; i < CORGI_KEY_STROBE_NUM; i++)
+ pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_OUT | GPIO_DFLT_HIGH);
+
+ /* Setup the headphone jack as an input */
+ pxa_gpio_mode(CORGI_GPIO_AK_INT | GPIO_IN);
+#endif
+
+ return 0;
+
+bail_free_dev:
+ input_free_device(input_dev);
+bail_free:
+ kfree(gta01kbd);
+bail:
+ return rc;
+}
+
+static int gta01kbd_remove(struct platform_device *pdev)
+{
+ struct gta01kbd *gta01kbd = platform_get_drvdata(pdev);
+
+ free_irq(s3c2410_gpio_getirq(pdev->resource[0].start), gta01kbd);
+#if 0
+ int i;
+
+ for (i = 0; i < CORGI_KEY_SENSE_NUM; i++)
+ free_irq(CORGI_IRQ_GPIO_KEY_SENSE(i), corgikbd);
+
+ del_timer_sync(&corgikbd->htimer);
+ del_timer_sync(&corgikbd->timer);
+#endif
+ input_unregister_device(gta01kbd->input);
+
+ kfree(gta01kbd);
+
+ return 0;
+}
+
+static struct platform_driver gta01kbd_driver = {
+ .probe = gta01kbd_probe,
+ .remove = gta01kbd_remove,
+ .suspend = gta01kbd_suspend,
+ .resume = gta01kbd_resume,
+ .driver = {
+ .name = "qt2410-button",
+ },
+};
+
+static int __devinit gta01kbd_init(void)
+{
+ return platform_driver_register(&gta01kbd_driver);
+}
+
+static void __exit gta01kbd_exit(void)
+{
+ platform_driver_unregister(&gta01kbd_driver);
+}
+
+module_init(gta01kbd_init);
+module_exit(gta01kbd_exit);
+
+MODULE_AUTHOR("Harald Welte <laforge@openmoko.org>");
+MODULE_DESCRIPTION("Armzone QT2410 Buttons Driver");
+MODULE_LICENSE("GPL");
--
1.5.6.5
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