openwrt-owl/target/linux/at91/patches-2.6.21/002-led-driver.patch

193 lines
4.7 KiB
Diff

Index: linux-2.6.21.7/arch/arm/mach-at91/board-vlink.c
===================================================================
--- linux-2.6.21.7.orig/arch/arm/mach-at91/board-vlink.c
+++ linux-2.6.21.7/arch/arm/mach-at91/board-vlink.c
@@ -61,7 +61,7 @@ static void __init vlink_map_io(void)
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 @@ static struct at91_usbh_data __initdata
.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 @@ static struct spi_board_info vlink_spi_d
#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 @@ static void __init vlink_board_init(void
/* 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 @@ static void __init vlink_board_init(void
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")
Index: linux-2.6.21.7/arch/arm/mach-at91/Makefile
===================================================================
--- linux-2.6.21.7.orig/arch/arm/mach-at91/Makefile
+++ linux-2.6.21.7/arch/arm/mach-at91/Makefile
@@ -52,7 +52,7 @@ led-$(CONFIG_MACH_CSB337) += leds.o
led-$(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
Index: linux-2.6.21.7/arch/arm/mach-at91/vlink_leds.c
===================================================================
--- /dev/null
+++ linux-2.6.21.7/arch/arm/mach-at91/vlink_leds.c
@@ -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);