Logo Search packages:      
Sourcecode: linux-2.6 version File versions

leds-innovator.c

/*
 * linux/arch/arm/mach-omap1/leds-innovator.c
 */
#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;
      }

      local_irq_restore(flags);
}

Generated by  Doxygen 1.6.0   Back to index