Openwrt/target/linux/at91-2.6/patches-2.6.21/002-led-driver.patch

diff -urN linux-2.6.21.1.orig/arch/arm/mach-at91/board-vlink.c linux-2.6.21.1/arch/arm/mach-at91/board-vlink.c
--- linux-2.6.21.1.orig/arch/arm/mach-at91/board-vlink.c	2007-05-28 13:33:41.000000000 +0200
+++ linux-2.6.21.1/arch/arm/mach-at91/board-vlink.c	2007-05-28 14:43:28.000000000 +0200
@@ -61,7 +61,7 @@
 	at91rm9200_initialize(18432000, AT91RM9200_PQFP);
 
 	/* Setup the LEDs */
-//	at91_init_leds(AT91_PIN_PB1, AT91_PIN_PB2);
+	at91_init_leds(AT91_PIN_PC14, AT91_PIN_PC15);
 
 	/* Setup the serial ports and console */
 	at91_init_serial(&vlink_uart_config);
@@ -81,10 +81,12 @@
 	.ports		= 1,
 };
 
+/*
 static struct at91_udc_data __initdata vlink_udc_data = {
 	.vbus_pin	= AT91_PIN_PD4,
 	.pullup_pin	= AT91_PIN_PD5,
 };
+*/
 
 static struct at91_mmc_data __initdata vlink_mmc_data = {
 //	.det_pin	= AT91_PIN_PB27,
@@ -108,18 +110,19 @@
 #endif
 };
 
-static struct at91_gpio_led vlink_leds[] = {
+/*static struct at91_gpio_led vlink_leds[] = {
 	{
 		.name		= "led0",
-		.gpio		= AT91_PIN_PB1,
+		.gpio		= AT91_PIN_PC14,
 		.trigger	= "heartbeat",
 	},
 	{
 		.name		= "led1",
-		.gpio		= AT91_PIN_PB2,
+		.gpio		= AT91_PIN_PC15,
 		.trigger	= "timer",
 	}
 };
+*/
 
 static void __init vlink_board_init(void)
 {
@@ -130,8 +133,8 @@
 	/* USB Host */
 	at91_add_device_usbh(&vlink_usbh_data);
 	/* USB Device */
-	at91_add_device_udc(&vlink_udc_data);
-	at91_set_multi_drive(vlink_udc_data.pullup_pin, 1);	/* pullup_pin is connected to reset */
+//	at91_add_device_udc(&vlink_udc_data);
+//	at91_set_multi_drive(vlink_udc_data.pullup_pin, 1);	/* pullup_pin is connected to reset */
 	/* I2C */
 	at91_add_device_i2c();
 	/* SPI */
@@ -145,7 +148,7 @@
 	at91_add_device_mmc(0, &vlink_mmc_data);
 #endif
 	/* LEDs */
-	at91_gpio_leds(vlink_leds, ARRAY_SIZE(vlink_leds));
+//	at91_gpio_leds(vlink_leds, ARRAY_SIZE(vlink_leds));
 }
 
 MACHINE_START(VLINK, "FDL VersaLink")
diff -urN linux-2.6.21.1.orig/arch/arm/mach-at91/Makefile linux-2.6.21.1/arch/arm/mach-at91/Makefile
--- linux-2.6.21.1.orig/arch/arm/mach-at91/Makefile	2007-05-28 13:13:15.000000000 +0200
+++ linux-2.6.21.1/arch/arm/mach-at91/Makefile	2007-05-28 14:19:06.000000000 +0200
@@ -52,7 +52,7 @@
 led-$(CONFIG_MACH_CSB637)	+= leds.o
 led-$(CONFIG_MACH_KB9200)	+= leds.o
 led-$(CONFIG_MACH_KAFA)		+= leds.o
-led-$(CONFIG_MACH_VLINK)	+= leds.o
+led-$(CONFIG_MACH_VLINK)	+= vlink_leds.o
 obj-$(CONFIG_LEDS) += $(led-y)
 
 # VGA support
diff -urN linux-2.6.21.1.orig/arch/arm/mach-at91/vlink_leds.c linux-2.6.21.1/arch/arm/mach-at91/vlink_leds.c
--- linux-2.6.21.1.orig/arch/arm/mach-at91/vlink_leds.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.21.1/arch/arm/mach-at91/vlink_leds.c	2007-05-28 14:41:03.000000000 +0200
@@ -0,0 +1,105 @@
+/*
+ * LED driver for Atmel AT91-based boards.
+ *
+ *  Copyright (C) SAN People (Pty) Ltd
+ *	Modified for FDL VersaLink Copyright (C) Guthrie Consulting
+ *
+ * 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.
+*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+#include <asm/mach-types.h>
+#include <asm/leds.h>
+#include <asm/arch/board.h>
+#include <asm/arch/gpio.h>
+
+
+static inline void at91_led_on(unsigned int led)
+{
+	at91_set_gpio_value(led, 0);
+}
+
+static inline void at91_led_off(unsigned int led)
+{
+	at91_set_gpio_value(led, 1);
+}
+
+static inline void at91_led_toggle(unsigned int led)
+{
+	unsigned long is_off = at91_get_gpio_value(led);
+	if (is_off) {
+		at91_led_on(led);
+		at91_led_off(at91_leds_cpu);
+		}
+	else {
+		at91_led_on(at91_leds_cpu);
+		at91_led_off(led);
+		}
+}
+
+
+/*
+ * Handle LED events.
+ */
+
+/*
+ * VersaLink has a single bi-coloured LED which changes colour when the
+ * polarity is reversed
+ */
+static void at91_leds_event(led_event_t evt)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+
+	switch(evt) {
+	case led_start:		/* System startup */
+		at91_led_toggle(at91_leds_timer);
+		break;
+
+	case led_stop:		/* System stop / suspend */
+		at91_led_toggle(at91_leds_timer);
+		break;
+
+#ifdef CONFIG_LEDS_TIMER
+	case led_timer:		/* Every 50 timer ticks */
+		at91_led_toggle(at91_leds_timer);
+		break;
+#endif
+
+#ifdef CONFIG_LEDS_CPU
+	case led_idle_start:	/* Entering idle state */
+		at91_led_toggle(at91_leds_timer);
+		break;
+
+	case led_idle_end:	/* Exit idle state */
+		at91_led_toggle(at91_leds_timer);
+		break;
+#endif
+
+	default:
+		break;
+	}
+
+	local_irq_restore(flags);
+}
+
+
+static int __init leds_init(void)
+{
+	if (!at91_leds_timer || !at91_leds_cpu)
+		return -ENODEV;
+
+	leds_event = at91_leds_event;
+
+	leds_event(led_start);
+	return 0;
+}
+
+__initcall(leds_init);