ramips: register gpio buttons on the WHR-G300N board

SVN-Revision: 19412

target/linux/ramips/files/arch/mips/ralink/rt305x/Kconfig

@@ -5,6 +5,7 @@ menu "Ralink RT350x machine selection"
 config RT305X_MACH_WHR_G300N
 	bool "Buffalo WHR-G300N support"
 	default y
+	select RALINK_DEV_GPIO_BUTTONS
 	select RALINK_DEV_GPIO_LEDS
 
 config RT305X_MACH_DIR_300_REVB

target/linux/ramips/files/arch/mips/ralink/rt305x/mach-whr-g300n.c

@@ -1,7 +1,7 @@
 /*
  *  Buffalo WHR-G300N board support
  *
- *  Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
  *
  *  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
@@ -15,6 +15,7 @@
 #include <linux/mtd/physmap.h>
 
 #include <asm/mach-ralink/machine.h>
+#include <asm/mach-ralink/dev-gpio-buttons.h>
 #include <asm/mach-ralink/dev-gpio-leds.h>
 #include <asm/mach-ralink/rt305x.h>
 #include <asm/mach-ralink/rt305x_regs.h>
@@ -25,6 +26,13 @@
 #define WHR_G300N_GPIO_LED_ROUTER	9
 #define WHR_G300N_GPIO_LED_SECURITY	14
 
+#define WHR_G300N_GPIO_BUTTON_AOSS		0	/* active low */
+#define WHR_G300N_GPIO_BUTTON_RESET		10	/* active low */
+#define WHR_G300N_GPIO_BUTTON_ROUTER_ON		8	/* active low */
+#define WHR_G300N_GPIO_BUTTON_ROUTER_OFF	11	/* active low */
+
+#define WHR_G300N_BUTTONS_POLL_INTERVAL		20
+
 #ifdef CONFIG_MTD_PARTITIONS
 static struct mtd_partition whr_g300n_partitions[] = {
 	{
@@ -85,6 +93,38 @@ static struct gpio_led whr_g300n_leds_gpio[] __initdata = {
 	}
 };
 
+static struct gpio_button whr_g300n_gpio_buttons[] __initdata = {
+	{
+		.desc		= "reset",
+		.type		= EV_KEY,
+		.code		= BTN_0,
+		.threshold	= 3,
+		.gpio		= WHR_G300N_GPIO_BUTTON_RESET,
+		.active_low	= 1,
+	}, {
+		.desc		= "aoss",
+		.type		= EV_KEY,
+		.code		= BTN_1,
+		.threshold	= 3,
+		.gpio		= WHR_G300N_GPIO_BUTTON_AOSS,
+		.active_low	= 1,
+	}, {
+		.desc		= "router-off",
+		.type		= EV_KEY,
+		.code		= BTN_2,
+		.threshold	= 3,
+		.gpio		= WHR_G300N_GPIO_BUTTON_ROUTER_OFF,
+		.active_low	= 1,
+	}, {
+		.desc		= "router-on",
+		.type		= EV_KEY,
+		.code		= BTN_3,
+		.threshold	= 3,
+		.gpio		= WHR_G300N_GPIO_BUTTON_ROUTER_ON,
+		.active_low	= 1,
+	}
+};
+
 static void __init whr_g300n_init(void)
 {
 	rt305x_gpio_init(RT305X_GPIO_MODE_GPIO << RT305X_GPIO_MODE_UART0_SHIFT);
@@ -93,6 +133,9 @@ static void __init whr_g300n_init(void)
 	rt305x_register_ethernet();
 	ramips_register_gpio_leds(-1, ARRAY_SIZE(whr_g300n_leds_gpio),
 				  whr_g300n_leds_gpio);
+	ramips_register_gpio_buttons(-1, WHR_G300N_BUTTONS_POLL_INTERVAL,
+				     ARRAY_SIZE(whr_g300n_gpio_buttons),
+				     whr_g300n_gpio_buttons);
 }
 
 MIPS_MACHINE(RAMIPS_MACH_WHR_G300N, "WHR-G300N", "Buffalo WHR-G300N",