116 lines
2.1 KiB
C
116 lines
2.1 KiB
C
|
/*
|
||
|
|
* linux/arch/arm/mach-pxa/leds-idp.c
|
||
|
|
*
|
||
|
|
* Copyright (C) 2000 John Dorsey <john+@cs.cmu.edu>
|
||
|
|
*
|
||
|
|
* Copyright (c) 2001 Jeff Sutherland <jeffs@accelent.com>
|
||
|
|
*
|
||
|
|
* Original (leds-footbridge.c) by Russell King
|
||
|
|
*
|
||
|
|
* Macros for actual LED manipulation should be in machine specific
|
||
|
|
* files in this 'mach' directory.
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
#include <linux/init.h>
|
||
|
|
|
||
|
|
#include <mach/hardware.h>
|
||
|
|
#include <asm/leds.h>
|
||
|
|
|
||
|
|
#include <mach/pxa25x.h>
|
||
|
|
#include <mach/idp.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 idp_leds_event(led_event_t evt)
|
||
|
|
{
|
||
|
|
unsigned long flags;
|
||
|
|
|
||
|
|
local_irq_save(flags);
|
||
|
|
|
||
|
|
switch (evt) {
|
||
|
|
case led_start:
|
||
|
|
hw_led_state = IDP_HB_LED | IDP_BUSY_LED;
|
||
|
|
led_state = LED_STATE_ENABLED;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_stop:
|
||
|
|
led_state &= ~LED_STATE_ENABLED;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_claim:
|
||
|
|
led_state |= LED_STATE_CLAIMED;
|
||
|
|
hw_led_state = IDP_HB_LED | IDP_BUSY_LED;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_release:
|
||
|
|
led_state &= ~LED_STATE_CLAIMED;
|
||
|
|
hw_led_state = IDP_HB_LED | IDP_BUSY_LED;
|
||
|
|
break;
|
||
|
|
|
||
|
|
#ifdef CONFIG_LEDS_TIMER
|
||
|
|
case led_timer:
|
||
|
|
if (!(led_state & LED_STATE_CLAIMED))
|
||
|
|
hw_led_state ^= IDP_HB_LED;
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CONFIG_LEDS_CPU
|
||
|
|
case led_idle_start:
|
||
|
|
if (!(led_state & LED_STATE_CLAIMED))
|
||
|
|
hw_led_state &= ~IDP_BUSY_LED;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_idle_end:
|
||
|
|
if (!(led_state & LED_STATE_CLAIMED))
|
||
|
|
hw_led_state |= IDP_BUSY_LED;
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
case led_halted:
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_green_on:
|
||
|
|
if (led_state & LED_STATE_CLAIMED)
|
||
|
|
hw_led_state |= IDP_HB_LED;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_green_off:
|
||
|
|
if (led_state & LED_STATE_CLAIMED)
|
||
|
|
hw_led_state &= ~IDP_HB_LED;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_amber_on:
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_amber_off:
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_red_on:
|
||
|
|
if (led_state & LED_STATE_CLAIMED)
|
||
|
|
hw_led_state |= IDP_BUSY_LED;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_red_off:
|
||
|
|
if (led_state & LED_STATE_CLAIMED)
|
||
|
|
hw_led_state &= ~IDP_BUSY_LED;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (led_state & LED_STATE_ENABLED)
|
||
|
|
IDP_CPLD_LED_CONTROL = ( (IDP_CPLD_LED_CONTROL | IDP_LEDS_MASK) & ~hw_led_state);
|
||
|
|
else
|
||
|
|
IDP_CPLD_LED_CONTROL |= IDP_LEDS_MASK;
|
||
|
|
|
||
|
|
local_irq_restore(flags);
|
||
|
|
}
|