Replace system button patch with its correspondant API

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10161 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 56 insertions, 241 deletions

diff --git a/target/linux/au1000/patches/002-sys_btn_gpio.patch b/target/linux/au1000/patches/002-sys_btn_gpio.patch
new file mode 100644
index 0000000000..741f557cfc
--- /dev/null
+++ b/target/linux/au1000/patches/002-sys_btn_gpio.patch
@@ -0,0 +1,56 @@
+This patch adds support for the GPIO connected system button on the MTX-1 boards. Default configuration is updated accordingly.
+
+Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
+---
+diff --git a/arch/mips/au1000/mtx-1/platform.c b/arch/mips/au1000/mtx-1/platform.c
+index 49c0fb4..ce8637b 100644
+--- a/arch/mips/au1000/mtx-1/platform.c
++++ b/arch/mips/au1000/mtx-1/platform.c
+@@ -22,9 +22,32 @@
+ #include <linux/types.h>
+ #include <linux/platform_device.h>
+ #include <linux/leds.h>
++#include <linux/gpio_keys.h>
++#include <linux/input.h>
+ 
+ #include <asm/gpio.h>
+ 
++static struct gpio_keys_button mtx1_gpio_button[] = {
++	{
++		.gpio = 207,
++		.code = BTN_0,
++		.desc = "System button",
++	}
++};
++
++static struct gpio_keys_platform_data mtx1_buttons_data = {
++	.buttons = mtx1_gpio_button,
++	.nbuttons = ARRAY_SIZE(mtx1_gpio_button),
++};
++
++static struct platform_device mtx1_button = {
++	.name = "gpio-keys",
++	.id = -1,
++	.dev = {
++		.platform_data = &mtx1_buttons_data,
++	}
++};
++
+ static struct resource mtx1_wdt_res[] = {
+ 	[0] = {
+ 		.start	= 15,
+@@ -66,11 +89,13 @@ static struct platform_device mtx1_gpio_leds = {
+ 
+ static struct __initdata platform_device * mtx1_devs[] = {
+ 	&mtx1_gpio_leds,
+-	&mtx1_wdt
++	&mtx1_wdt,
++	&mtx1_button
+ };
+ 
+ static int __init mtx1_register_devices(void)
+ {
++	gpio_direction_input(207);
+ 	return platform_add_devices(mtx1_devs, ARRAY_SIZE(mtx1_devs));
+ }
+ 
diff --git a/target/linux/au1000/patches/006-mtx1_system_button.patch b/target/linux/au1000/patches/006-mtx1_system_button.patch
deleted file mode 100644
index cc452433cf..0000000000
--- a/target/linux/au1000/patches/006-mtx1_system_button.patch
+++ /dev/null
@@ -1,241 +0,0 @@
-diff -urN linux-2.6.16.7/arch/mips/au1000/mtx-1/irqmap.c linux-2.6.16.7.new/arch/mips/au1000/mtx-1/irqmap.c
---- linux-2.6.16.7/arch/mips/au1000/mtx-1/irqmap.c	2006-04-17 23:53:25.000000000 +0200
-+++ linux-2.6.16.7.new/arch/mips/au1000/mtx-1/irqmap.c	2006-04-23 11:54:31.000000000 +0200
-@@ -64,6 +64,7 @@
-        { AU1500_GPIO_202, INTC_INT_LOW_LEVEL, 0 },
-        { AU1500_GPIO_203, INTC_INT_LOW_LEVEL, 0 },
-        { AU1500_GPIO_205, INTC_INT_LOW_LEVEL, 0 },
-+       { AU1500_GPIO_207, INTC_INT_RISE_AND_FALL_EDGE, 0 },
- };
- 
- int au1xxx_nr_irqs = sizeof(au1xxx_irq_map)/sizeof(au1xxx_irq_map_t);
-diff -urN linux-2.6.16.7/arch/mips/au1000/mtx-1/Makefile linux-2.6.16.7.new/arch/mips/au1000/mtx-1/Makefile
---- linux-2.6.16.7/arch/mips/au1000/mtx-1/Makefile	2006-04-17 23:53:25.000000000 +0200
-+++ linux-2.6.16.7.new/arch/mips/au1000/mtx-1/Makefile	2006-04-23 14:01:36.000000000 +0200
-@@ -8,3 +8,4 @@
- #
- 
- lib-y := init.o board_setup.o irqmap.o
-+obj-y := mtx-1_sysbtn.o platform.o
-diff -urN linux-2.6.16.7/arch/mips/au1000/mtx-1/mtx-1_sysbtn.c linux-2.6.16.7.new/arch/mips/au1000/mtx-1/mtx-1_sysbtn.c
---- linux-2.6.16.7/arch/mips/au1000/mtx-1/mtx-1_sysbtn.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.16.7.new/arch/mips/au1000/mtx-1/mtx-1_sysbtn.c	2006-04-23 14:01:17.000000000 +0200
-@@ -0,0 +1,218 @@
-+/*
-+ *      Driver for the MTX-1 System Button.
-+ *
-+ *      (c) Copyright 2005 4G Systems <info@4g-systems.biz>, All Rights Reserved.
-+ *                              http://www.4g-systems.biz
-+ *
-+ *      This program is free software; you can redistribute it and/or
-+ *      modify it under the terms of the GNU General Public License
-+ *      as published by the Free Software Foundation; either version
-+ *      2 of the License, or (at your option) any later version.
-+ *
-+ *      Neither Michael Stickel nor 4G Systeme GmbH admit liability nor provide
-+ *      warranty for any of this software. This material is provided
-+ *      "AS-IS" and at no charge.
-+ *
-+ *      (c) Copyright 2005    4G Systems <info@4g-systems.biz>
-+ *
-+ *      Release 0.01.
-+ *
-+ *      Author: Michael Stickel  michael.stickel@4g-systems.biz
-+ *
-+ *
-+ *      After the module is loaded there is a device /dev/misc/btn
-+ *      that can be read. It returns one char '1' if the button
-+ *      has been pressed an '0' if it has been released.
-+ */
-+#include <linux/autoconf.h>
-+#include <linux/module.h>
-+#include <linux/version.h>
-+#include <linux/types.h>
-+#include <linux/errno.h>
-+#include <linux/kernel.h>
-+#include <linux/poll.h>
-+#include <linux/sched.h>
-+#include <linux/miscdevice.h>
-+#include <linux/slab.h>
-+#include <linux/init.h>
-+#include <linux/irq.h>
-+#include <linux/interrupt.h>
-+
-+#include <asm/uaccess.h>
-+
-+#include <asm/mach-au1x00/au1000.h>
-+
-+
-+#ifndef FALSE
-+# define FALSE (0)
-+#endif
-+
-+#ifndef TRUE
-+# define TRUE (!FALSE)
-+#endif
-+
-+
-+//---------[ declarations ]-----------------
-+
-+
-+static DECLARE_WAIT_QUEUE_HEAD(mtx1btn_wait_queue);
-+static char state_changed;
-+static char last_value;
-+static char is_inuse;
-+
-+
-+//---------[ Hardware Functions ]-----------------
-+
-+// The MTX-1 Button is attached to GPIO207.
-+#define MTX1_GPIO2_SYSBTN (7)
-+#define MTX1_SYSBTN_IRQ   (AU1500_GPIO_207)
-+
-+
-+static char mtx1_getbtn (int btnno)
-+{
-+  if (btnno==0) {
-+    return (au_readl(GPIO2_PINSTATE) & (1<<MTX1_GPIO2_SYSBTN)) ? 0 : 1;
-+  }
-+  return 0;
-+}
-+
-+static void mtx1_initbuttons (void)
-+{
-+  au_writel (au_readl(GPIO2_DIR) & ~(1<<MTX1_GPIO2_SYSBTN), GPIO2_DIR);
-+}
-+
-+
-+//---------[ Interrupt handling ]-----------------
-+
-+
-+static void mtx1_btn_interrupt (int irq, void *private)
-+{
-+	char value = mtx1_getbtn(0);
-+	if (last_value != value)
-+	{
-+		last_value = value;
-+		state_changed = 1;
-+		wake_up (&mtx1btn_wait_queue);
-+	}
-+//	kill_fasync(&async_queue, SIGIO, POLL_OUT);
-+}
-+
-+
-+static int mtx1_btn_startirq (void)
-+{
-+	if (!request_irq (MTX1_SYSBTN_IRQ, mtx1_btn_interrupt, 0 /* | SA_INTERRUPT */, "mtx1btn", (void *)&state_changed)) {
-+		return 0;
-+    }
-+	return -1;
-+}
-+
-+static int mtx1_btn_stopirq  (void)
-+{
-+	free_irq(MTX1_SYSBTN_IRQ, (void *)&state_changed);
-+	return 0;
-+}
-+
-+
-+
-+//---------[ File Functions ]-----------------
-+
-+
-+static int mtx1sysbtn_minor = -1;
-+
-+
-+static int mtx1sysbtn_open (struct inode *inode, struct file *file)
-+{
-+	if (MINOR(inode->i_rdev)!=mtx1sysbtn_minor) return -ENODEV;
-+	if (is_inuse) return -EBUSY;
-+	is_inuse=1;
-+	last_value = mtx1_getbtn(0);
-+	state_changed = 0;
-+	return 0;
-+}
-+
-+
-+static int mtx1sysbtn_release (struct inode *inode, struct file *file) {
-+	if (MINOR(inode->i_rdev)==mtx1sysbtn_minor) {
-+		is_inuse=0;
-+	}
-+	return 0;
-+}
-+
-+
-+static ssize_t mtx1sysbtn_read (struct file *file, char *buf, size_t count, loff_t *ppos)
-+{
-+	if (count < 1)
-+		return -EINVAL;
-+	if (!state_changed)
-+		interruptible_sleep_on (&mtx1btn_wait_queue);
-+	state_changed = 0;
-+	char c = last_value ? '1' : '0'; /* mtx1_getbtn(0) */
-+	if(copy_to_user(buf, &c, 1))
-+		return -EFAULT;
-+	return 1;
-+}
-+
-+
-+static unsigned int mtx1sysbtn_poll (struct file *file, poll_table * wait)
-+{
-+  unsigned int mask = 0;
-+
-+  poll_wait (file, &mtx1btn_wait_queue, wait);
-+
-+  if (state_changed) // state changed since last time.
-+    mask |= POLLIN | POLLRDNORM;
-+
-+  return mask;
-+}
-+
-+
-+static struct file_operations mtx1sysbtn_fops = {
-+	.owner = THIS_MODULE,
-+	.read = mtx1sysbtn_read,
-+	.poll = mtx1sysbtn_poll,
-+	.open = mtx1sysbtn_open,
-+	.release = mtx1sysbtn_release
-+};
-+
-+
-+static struct miscdevice mtx1sysbtn_miscdev = {
-+	MISC_DYNAMIC_MINOR /* SYSBTN_MINOR */ ,
-+	"btn",
-+	&mtx1sysbtn_fops
-+};
-+
-+
-+
-+//---------[ Module Functions ]-----------------
-+
-+
-+void __exit exit_mtx1_sysbtn (void)
-+{
-+	is_inuse = 1;
-+	mtx1_btn_stopirq ();
-+	misc_deregister(&mtx1sysbtn_miscdev);
-+}
-+
-+
-+static int __init init_mtx1_sysbtn (void)
-+{
-+	printk("MTX-1 System Button driver\n");
-+	is_inuse = 1;
-+	mtx1_initbuttons ();
-+	if (misc_register (&mtx1sysbtn_miscdev) >= 0) {
-+		mtx1sysbtn_minor = mtx1sysbtn_miscdev.minor;
-+		if (mtx1_btn_startirq () == 0) {
-+			is_inuse=0;
-+			return 0;
-+		}
-+		misc_deregister(&mtx1sysbtn_miscdev);
-+	}
-+	return 1;
-+}
-+
-+module_init(init_mtx1_sysbtn);
-+module_exit(exit_mtx1_sysbtn);
-+
-+MODULE_AUTHOR("Michael Stickel");
-+MODULE_DESCRIPTION("Driver for the MTX-1 system button");
-+MODULE_LICENSE("GPL");