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Replace system button patch with its correspondant API

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SVN-Revision: 10161
This commit is contained in:
Florian Fainelli 2008-01-10 18:44:38 +00:00
parent d180d4e006
commit e44a1f8f4a
3 changed files with 74 additions and 241 deletions
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18
target/linux/au1000/config-2.6.23
View File

@ -58,6 +58,8 @@ CONFIG_GENERIC_GPIO=y
CONFIG_HAS_DMA=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HID=m
CONFIG_HID_SUPPORT=y
CONFIG_HW_HAS_PCI=y
CONFIG_HW_RANDOM=y
CONFIG_HZ=250
@ -71,6 +73,16 @@ CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_CHARDEV=m
# CONFIG_IDE is not set
CONFIG_INITRAMFS_SOURCE=""
CONFIG_INPUT=y
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ATKBD is not set
CONFIG_KEYBOARD_GPIO=y
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_LEDS_ALIX is not set
CONFIG_LEDS_GPIO=y
# CONFIG_LEDS_TRIGGERS is not set
# CONFIG_LEMOTE_FULONG is not set
@ -151,6 +163,7 @@ CONFIG_MTD_PARTITIONS=y
# CONFIG_MTD_SLRAM is not set
# CONFIG_NATSEMI is not set
# CONFIG_NE2K_PCI is not set
# CONFIG_NET_SCH_ESFQ_NFCT is not set
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NO_IOPORT is not set
# CONFIG_PAGE_SIZE_16KB is not set
@ -216,11 +229,16 @@ CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_OHCI_BIG_ENDIAN_DESC is not set
# CONFIG_USB_OHCI_BIG_ENDIAN_MMIO is not set
CONFIG_USB_OHCI_HCD=m
# CONFIG_USB_PWC is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_SERIAL_OTI6858 is not set
CONFIG_USB_UHCI_HCD=m
# CONFIG_USER_NS is not set
CONFIG_V4L_USB_DRIVERS=y
# CONFIG_VGASTATE is not set
# CONFIG_VIA_RHINE is not set
CONFIG_VIDEO_CAPTURE_DRIVERS=y
# CONFIG_VIDEO_CPIA2 is not set
CONFIG_VIDEO_V4L1=y
CONFIG_WDT_MTX1=y
CONFIG_ZONE_DMA_FLAG=0

56
target/linux/au1000/patches/002-sys_btn_gpio.patch Normal file
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@ -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));
}

241
target/linux/au1000/patches/006-mtx1_system_button.patch
View File

@ -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");