2005-04-16 15:20:36 -07:00
/*
2005-09-08 23:07:38 +01:00
* linux / arch / arm / mach - omap1 / leds - innovator . c
2005-04-16 15:20:36 -07:00
*/
# include <linux/init.h>
2008-08-05 16:14:15 +01:00
# include <mach/hardware.h>
2005-04-16 15:20:36 -07:00
# 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 ) ;
}