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Index: linux-2.6.15-rc1/arch/arm/mach-pxa/Makefile
===================================================================
--- linux-2.6.15-rc1.orig/arch/arm/mach-pxa/Makefile 2005-11-19 23:13:40.000000000 +0000
+++ linux-2.6.15-rc1/arch/arm/mach-pxa/Makefile 2005-11-19 23:13:41.000000000 +0000
@@ -31,6 +31,7 @@
# Misc features
obj-$(CONFIG_PM) += pm.o sleep.o
+obj-$(CONFIG_PXA_KEYS) += pxa_keys.o
obj-$(CONFIG_PXA_SSP) += ssp.o
ifeq ($(CONFIG_PXA27x),y)
Index: linux-2.6.15-rc1/arch/arm/mach-pxa/Kconfig
===================================================================
--- linux-2.6.15-rc1.orig/arch/arm/mach-pxa/Kconfig 2005-11-19 23:13:40.000000000 +0000
+++ linux-2.6.15-rc1/arch/arm/mach-pxa/Kconfig 2005-11-19 23:13:41.000000000 +0000
@@ -112,6 +112,10 @@
help
Select code specific to PXA27x variants
+config PXA_KEYS
+ tristate "PXA25x/27x simple keyboard driver"
+ depends on (PXA25x || PXA27x) && INPUT
+
config IWMMXT
bool
help
Index: linux-2.6.15-rc1/arch/arm/mach-pxa/pxa_keys.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.15-rc1/arch/arm/mach-pxa/pxa_keys.c 2005-11-19 23:32:30.000000000 +0000
@@ -0,0 +1,157 @@
+/*
+ * Driver interface for keys on PXA25x GPIO lines
+ *
+ * Copyright 2005 Phil Blundell
+ *
+ * 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/module.h>
+#include <linux/version.h>
+
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/pm.h>
+#include <linux/sysctl.h>
+#include <linux/proc_fs.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+
+#include <asm/irq.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/pxa-regs.h>
+#include <asm/arch/pxa_keys.h>
+
+static irqreturn_t
+pxa_keys_isr (int irq, void *dev_id, struct pt_regs *regs)
+{
+ int i;
+ struct pxa_keys_platform_data *k = dev_id;
+
+ if (k->suspended)
+ return IRQ_HANDLED;
+
+ for (i = 0; i < k->nbuttons; i++) {
+ int gpio = k->buttons[i].gpio;
+ if (irq == IRQ_GPIO(gpio)) {
+ int state = ((GPLR(gpio) & GPIO_bit(gpio)) ? 1 : 0)
+ ^ ((k->buttons[i].flags & PXAKEY_ACTIVE_LOW) != 0);
+ input_report_key (&k->input, k->buttons[i].keycode, state);
+ if ((k->buttons[i].flags & PXAKEY_PWR_KEY)
+ && time_after(jiffies, k->suspend_jiffies + HZ)) {
+ input_event(&k->input, EV_PWR, k->buttons[i].keycode, state);
+ k->suspend_jiffies=jiffies;
+ }
+
+ }
+ }
+
+ return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_PM
+static int pxa_keys_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct pxa_keys_platform_data *k = platform_get_drvdata(pdev);
+ k->suspended = 1;
+ return 0;
+}
+
+static int pxa_keys_resume(struct platform_device *pdev)
+{
+ struct pxa_keys_platform_data *k = platform_get_drvdata(pdev);
+
+ /* Upon resume, ignore the suspend key for a short while */
+ k->suspend_jiffies=jiffies;
+ k->suspended = 0;
+ return 0;
+}
+#else
+#define pxa_keys_suspend NULL
+#define pxa_keys_resume NULL
+#endif
+
+static int
+pxa_keys_probe (struct platform_device *pdev)
+{
+ struct pxa_keys_platform_data *k;
+ int i;
+
+ k = pdev->dev.platform_data;
+ platform_set_drvdata(pdev, k);
+
+ init_input_dev (&k->input);
+
+ k->input.evbit[0] = BIT(EV_KEY) | BIT(EV_PWR) | BIT(EV_REP);
+ for (i = 0; i < k->nbuttons; i++) {
+ int code = k->buttons[i].keycode;
+ int irq = IRQ_GPIO (k->buttons[i].gpio);
+ int result;
+
+ set_irq_type (irq, IRQT_BOTHEDGE);
+ result = request_irq (irq, pxa_keys_isr, SA_SAMPLE_RANDOM,
+ "pxa_keys", k);
+ if (result == 0)
+ set_bit (code, k->input.keybit);
+ else
+ printk("pxa_keys: unable to claim irq %d; error %d\n", irq, result);
+ }
+
+ k->input.name = pdev->name;
+ k->input.private = k;
+
+ k->suspend_jiffies=jiffies;
+ k->suspended=0;
+
+ input_register_device (&k->input);
+
+ return 0;
+}
+
+static int
+pxa_keys_remove (struct platform_device *pdev)
+{
+ struct pxa_keys_platform_data *k = pdev->dev.platform_data;
+ int i;
+
+ for (i = 0; i < k->nbuttons; i++) {
+ int irq = IRQ_GPIO (k->buttons[i].gpio);
+ free_irq (irq, k);
+ }
+
+ input_unregister_device (&k->input);
+
+ return 0;
+}
+
+struct platform_driver pxa_keys_device_driver = {
+ .probe = pxa_keys_probe,
+ .remove = pxa_keys_remove,
+ .suspend = pxa_keys_suspend,
+ .resume = pxa_keys_resume,
+ .driver = {
+ .name = "pxa2xx-keys",
+ },
+};
+
+static int pxa_keys_init (void)
+{
+ return platform_driver_register(&pxa_keys_device_driver);
+}
+
+static void pxa_keys_cleanup (void)
+{
+ platform_driver_unregister(&pxa_keys_device_driver);
+}
+
+module_init (pxa_keys_init);
+module_exit (pxa_keys_cleanup);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Phil Blundell <pb@handhelds.org>");
+MODULE_DESCRIPTION("Keyboard driver for PXA25x/PXA27x GPIOs");
Index: linux-2.6.15-rc1/include/asm-arm/arch-pxa/pxa_keys.h
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.15-rc1/include/asm-arm/arch-pxa/pxa_keys.h 2005-11-19 23:13:41.000000000 +0000
@@ -0,0 +1,17 @@
+#include <linux/input.h>
+
+struct pxa_keys_button {
+ int keycode;
+ int gpio;
+ unsigned long flags;
+};
+#define PXAKEY_ACTIVE_LOW (1 << 0) /* Key is Active Low */
+#define PXAKEY_PWR_KEY (1 << 1) /* Key is a Power Key */
+
+struct pxa_keys_platform_data {
+ struct pxa_keys_button *buttons;
+ int nbuttons;
+ struct input_dev input;
+ unsigned int suspended;
+ unsigned long suspend_jiffies;
+};
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