linux/arch/arm/mach-omap1/leds-innovator.c
Tony Lindgren 7c38cf021b [ARM] 2890/1: OMAP 1/4: Update omap1 specific files, take 2
Patch from Tony Lindgren

This patch syncs the mainline kernel with linux-omap tree.
The highlights of the patch are:
- Convert more drivers to register resources in board-*.c to take
  advantage of the driver model by David Brownell and Ladislav Michl
- Use set_irq_type() for GPIO interrupts instead of
  omap_set_gpio_edge_ctrl() by David Brownell
- Add minimal support for handling optional add-on boards, such as
  OSK Mistral board with LCD and keypad, by David Brownell
- Minimal support for loading functions to SRAM by Tony Lindgren
- Wake up from serial port by muxing RX lines temporarily into GPIO
  interrupts by Tony Lindgren
- 32KHz sched_clock by Tony Lindgren and Juha Yrjola

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-09-08 23:07:38 +01:00

103 lines
1.6 KiB
C

/*
* linux/arch/arm/mach-omap1/leds-innovator.c
*/
#include <linux/config.h>
#include <linux/init.h>
#include <asm/hardware.h>
#include <asm/leds.h>
#include <asm/system.h>
#include "leds.h"
#define LED_STATE_ENABLED 1
#define LED_STATE_CLAIMED 2
static unsigned int led_state;
static unsigned int hw_led_state;
void innovator_leds_event(led_event_t evt)
{
unsigned long flags;
local_irq_save(flags);
switch (evt) {
case led_start:
hw_led_state = 0;
led_state = LED_STATE_ENABLED;
break;
case led_stop:
led_state &= ~LED_STATE_ENABLED;
hw_led_state = 0;
break;
case led_claim:
led_state |= LED_STATE_CLAIMED;
hw_led_state = 0;
break;
case led_release:
led_state &= ~LED_STATE_CLAIMED;
hw_led_state = 0;
break;
#ifdef CONFIG_LEDS_TIMER
case led_timer:
if (!(led_state & LED_STATE_CLAIMED))
hw_led_state ^= 0;
break;
#endif
#ifdef CONFIG_LEDS_CPU
case led_idle_start:
if (!(led_state & LED_STATE_CLAIMED))
hw_led_state |= 0;
break;
case led_idle_end:
if (!(led_state & LED_STATE_CLAIMED))
hw_led_state &= ~0;
break;
#endif
case led_halted:
break;
case led_green_on:
if (led_state & LED_STATE_CLAIMED)
hw_led_state &= ~0;
break;
case led_green_off:
if (led_state & LED_STATE_CLAIMED)
hw_led_state |= 0;
break;
case led_amber_on:
break;
case led_amber_off:
break;
case led_red_on:
if (led_state & LED_STATE_CLAIMED)
hw_led_state &= ~0;
break;
case led_red_off:
if (led_state & LED_STATE_CLAIMED)
hw_led_state |= 0;
break;
default:
break;
}
if (led_state & LED_STATE_ENABLED)
;
local_irq_restore(flags);
}