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

diff -urN linux-2.6.19.2.old/arch/arm/mach-at91rm9200/Makefile linux-2.6.19.2/arch/arm/mach-at91rm9200/Makefile
--- linux-2.6.19.2.old/arch/arm/mach-at91rm9200/Makefile	2007-03-06 11:29:37.000000000 +0100
+++ linux-2.6.19.2/arch/arm/mach-at91rm9200/Makefile	2007-03-06 20:52:28.000000000 +0100
@@ -40,6 +40,7 @@
 led-$(CONFIG_MACH_CSB637)	+= leds.o
 led-$(CONFIG_MACH_KB9200)	+= leds.o
 led-$(CONFIG_MACH_KAFA)		+= leds.o
+led-$(CONFIG_MACH_VLINK)  += vlink_leds.o
 obj-$(CONFIG_LEDS) += $(led-y)
 
 # VGA support
diff -urN linux-2.6.19.2.old/arch/arm/mach-at91rm9200/vlink_leds.c linux-2.6.19.2/arch/arm/mach-at91rm9200/vlink_leds.c
--- linux-2.6.19.2.old/arch/arm/mach-at91rm9200/vlink_leds.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.19.2/arch/arm/mach-at91rm9200/vlink_leds.c	2007-03-06 21:11:16.000000000 +0100
@@ -0,0 +1,151 @@
+/*
+ * LED driver for Atmel AT91-based boards.
+ *
+ *  Copyright (C) SAN People (Pty) Ltd
+ *
+ * Modified for FDL Versalink board (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>
+
+#define LED_CPU 0
+#define LED_TIMER 1
+#define LED_COM1 2
+#define LED_COM2 3
+
+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(AT91_PIN_PC7);
+	if (is_off) {
+		at91_set_gpio_value(AT91_PIN_PC7, 0);
+		at91_set_gpio_value(AT91_PIN_PC8, 1);
+	} else {
+		at91_set_gpio_value(AT91_PIN_PC7, 1);
+		at91_set_gpio_value(AT91_PIN_PC8, 0);
+	}
+}
+
+
+/*
+ * Handle LED events.
+ */
+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_on(at91_leds_cpu);
+		at91_led_toggle(at91_leds_timer);
+/*
+		at91_set_gpio_value(AT91_PIN_PC7, 0);
+		at91_set_gpio_value(AT91_PIN_PC8, 1);
+*/
+		break;
+
+	case led_stop:		/* System stop / suspend */
+		at91_led_toggle(at91_leds_timer);
+/*
+		at91_set_gpio_value(AT91_PIN_PC7, 1);
+		at91_set_gpio_value(AT91_PIN_PC8, 0);
+*/
+		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);
+/*
+		at91_set_gpio_value(AT91_PIN_PC7, 1);
+		at91_set_gpio_value(AT91_PIN_PC8, 0);
+*/
+		break;
+
+	case led_idle_end:	/* Exit idle state */
+		at91_led_toggle(at91_leds_timer);
+/*
+		at91_set_gpio_value(AT91_PIN_PC7, 0);
+		at91_set_gpio_value(AT91_PIN_PC8, 1);
+*/
+		break;
+#endif
+
+	default:
+		break;
+	}
+
+	local_irq_restore(flags);
+}
+
+
+static int __init leds_init(void)
+{
+/*	if (!at91_leds_timer || !at91_leds_cpu)
+		return -ENODEV;
+*/
+//	printk("leds_init()\n");
+
+	/* Enable PIO to access the LEDs */
+	at91_set_gpio_output(AT91_PIN_PC7, 1);
+	at91_set_gpio_output(AT91_PIN_PC8, 1);
+	at91_set_gpio_output(AT91_PIN_PC14, 1);
+	at91_set_gpio_output(AT91_PIN_PC15, 1);
+	at91_set_gpio_output(AT91_PIN_PB14, 1);
+	at91_set_gpio_output(AT91_PIN_PB15, 1);
+	at91_set_gpio_output(AT91_PIN_PB16, 1);
+	at91_set_gpio_output(AT91_PIN_PB17, 1);
+
+	at91_set_gpio_output(AT91_PIN_PB9, 1);
+	at91_set_gpio_output(AT91_PIN_PB10, 1);
+	at91_set_gpio_output(AT91_PIN_PB11, 1);
+	at91_set_gpio_output(AT91_PIN_PB12, 1);
+
+	at91_set_gpio_input(AT91_PIN_PB8, 1);
+	at91_set_gpio_input(AT91_PIN_PB22, 1);
+	at91_set_gpio_input(AT91_PIN_PA19, 1);
+	at91_set_gpio_input(AT91_PIN_PA24, 1);
+	at91_set_gpio_output(AT91_PIN_PA29, 1);
+	at91_set_gpio_output(AT91_PIN_PB2, 1);
+	at91_set_gpio_output(AT91_PIN_PB3, 1);
+	at91_set_gpio_output(AT91_PIN_PB4, 1);
+
+	at91_set_gpio_input(AT91_PIN_PB27, 1);
+	at91_set_gpio_input(AT91_PIN_PB28, 1);
+	at91_set_gpio_input(AT91_PIN_PB29, 1);
+
+	leds_event = at91_leds_event;
+
+	leds_event(led_start);
+	return 0;
+}
+
+__initcall(leds_init);