121 lines
2.0 KiB
C
121 lines
2.0 KiB
C
/*
|
|
* linux/arch/arm/mach-pxa/leds-mainstone.c
|
|
*
|
|
* Author: Nicolas Pitre
|
|
* Created: Nov 05, 2002
|
|
* Copyright: MontaVista Software Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <asm/leds.h>
|
|
#include <asm/system.h>
|
|
|
|
#include <mach/pxa-regs.h>
|
|
#include <mach/mainstone.h>
|
|
|
|
#include "leds.h"
|
|
|
|
|
|
/* 8 discrete leds available for general use: */
|
|
#define D28 (1 << 0)
|
|
#define D27 (1 << 1)
|
|
#define D26 (1 << 2)
|
|
#define D25 (1 << 3)
|
|
#define D24 (1 << 4)
|
|
#define D23 (1 << 5)
|
|
#define D22 (1 << 6)
|
|
#define D21 (1 << 7)
|
|
|
|
#define LED_STATE_ENABLED 1
|
|
#define LED_STATE_CLAIMED 2
|
|
|
|
static unsigned int led_state;
|
|
static unsigned int hw_led_state;
|
|
|
|
void mainstone_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;
|
|
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:
|
|
hw_led_state ^= D26;
|
|
break;
|
|
#endif
|
|
|
|
#ifdef CONFIG_LEDS_CPU
|
|
case led_idle_start:
|
|
hw_led_state &= ~D27;
|
|
break;
|
|
|
|
case led_idle_end:
|
|
hw_led_state |= D27;
|
|
break;
|
|
#endif
|
|
|
|
case led_halted:
|
|
break;
|
|
|
|
case led_green_on:
|
|
hw_led_state |= D21;
|
|
break;
|
|
|
|
case led_green_off:
|
|
hw_led_state &= ~D21;
|
|
break;
|
|
|
|
case led_amber_on:
|
|
hw_led_state |= D22;
|
|
break;
|
|
|
|
case led_amber_off:
|
|
hw_led_state &= ~D22;
|
|
break;
|
|
|
|
case led_red_on:
|
|
hw_led_state |= D23;
|
|
break;
|
|
|
|
case led_red_off:
|
|
hw_led_state &= ~D23;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (led_state & LED_STATE_ENABLED)
|
|
MST_LEDCTRL = (MST_LEDCTRL | 0xff) & ~hw_led_state;
|
|
else
|
|
MST_LEDCTRL |= 0xff;
|
|
|
|
local_irq_restore(flags);
|
|
}
|