134 lines
2.6 KiB
C
134 lines
2.6 KiB
C
|
/*
|
||
|
|
* linux/arch/arm/mach-pxa/leds-trizeps4.c
|
||
|
|
*
|
||
|
|
* Author: Jürgen Schindele
|
||
|
|
* Created: 20 02, 2006
|
||
|
|
* Copyright: Jürgen Schindele
|
||
|
|
*
|
||
|
|
* 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 <asm/hardware.h>
|
||
|
|
#include <asm/system.h>
|
||
|
|
#include <asm/types.h>
|
||
|
|
#include <asm/leds.h>
|
||
|
|
|
||
|
|
#include <asm/arch/pxa-regs.h>
|
||
|
|
#include <asm/arch/trizeps4.h>
|
||
|
|
|
||
|
|
#include "leds.h"
|
||
|
|
|
||
|
|
#define LED_STATE_ENABLED 1
|
||
|
|
#define LED_STATE_CLAIMED 2
|
||
|
|
|
||
|
|
#define SYS_BUSY 0x01
|
||
|
|
#define HEARTBEAT 0x02
|
||
|
|
#define BLINK 0x04
|
||
|
|
|
||
|
|
static unsigned int led_state;
|
||
|
|
static unsigned int hw_led_state;
|
||
|
|
|
||
|
|
void trizeps4_leds_event(led_event_t evt)
|
||
|
|
{
|
||
|
|
unsigned long flags;
|
||
|
|
|
||
|
|
local_irq_save(flags);
|
||
|
|
|
||
|
|
switch (evt) {
|
||
|
|
case led_start:
|
||
|
|
hw_led_state = 0;
|
||
|
|
pxa_gpio_mode( GPIO_SYS_BUSY_LED | GPIO_OUT); /* LED1 */
|
||
|
|
pxa_gpio_mode( GPIO_HEARTBEAT_LED | GPIO_OUT); /* LED2 */
|
||
|
|
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 ^= HEARTBEAT;
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef CONFIG_LEDS_CPU
|
||
|
|
case led_idle_start:
|
||
|
|
hw_led_state &= ~SYS_BUSY;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_idle_end:
|
||
|
|
hw_led_state |= SYS_BUSY;
|
||
|
|
break;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
case led_halted:
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_green_on:
|
||
|
|
hw_led_state |= BLINK;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_green_off:
|
||
|
|
hw_led_state &= ~BLINK;
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_amber_on:
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_amber_off:
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_red_on:
|
||
|
|
break;
|
||
|
|
|
||
|
|
case led_red_off:
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (led_state & LED_STATE_ENABLED) {
|
||
|
|
switch (hw_led_state) {
|
||
|
|
case 0:
|
||
|
|
GPSR(GPIO_SYS_BUSY_LED) |= GPIO_bit(GPIO_SYS_BUSY_LED);
|
||
|
|
GPSR(GPIO_HEARTBEAT_LED) |= GPIO_bit(GPIO_HEARTBEAT_LED);
|
||
|
|
break;
|
||
|
|
case 1:
|
||
|
|
GPCR(GPIO_SYS_BUSY_LED) |= GPIO_bit(GPIO_SYS_BUSY_LED);
|
||
|
|
GPSR(GPIO_HEARTBEAT_LED) |= GPIO_bit(GPIO_HEARTBEAT_LED);
|
||
|
|
break;
|
||
|
|
case 2:
|
||
|
|
GPSR(GPIO_SYS_BUSY_LED) |= GPIO_bit(GPIO_SYS_BUSY_LED);
|
||
|
|
GPCR(GPIO_HEARTBEAT_LED) |= GPIO_bit(GPIO_HEARTBEAT_LED);
|
||
|
|
break;
|
||
|
|
case 3:
|
||
|
|
GPCR(GPIO_SYS_BUSY_LED) |= GPIO_bit(GPIO_SYS_BUSY_LED);
|
||
|
|
GPCR(GPIO_HEARTBEAT_LED) |= GPIO_bit(GPIO_HEARTBEAT_LED);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
/* turn all off */
|
||
|
|
GPSR(GPIO_SYS_BUSY_LED) |= GPIO_bit(GPIO_SYS_BUSY_LED);
|
||
|
|
GPSR(GPIO_HEARTBEAT_LED) |= GPIO_bit(GPIO_HEARTBEAT_LED);
|
||
|
|
}
|
||
|
|
|
||
|
|
local_irq_restore(flags);
|
||
|
|
}
|