mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-18 09:44:18 +08:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
112 lines
2.8 KiB
C
112 lines
2.8 KiB
C
/*
|
|
* linux/arch/arm/mach-sa1100/leds-cerf.c
|
|
*
|
|
* Author: ???
|
|
*/
|
|
#include <linux/config.h>
|
|
#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;
|
|
|
|
#define LED_D0 GPIO_GPIO(0)
|
|
#define LED_D1 GPIO_GPIO(1)
|
|
#define LED_D2 GPIO_GPIO(2)
|
|
#define LED_D3 GPIO_GPIO(3)
|
|
#define LED_MASK (LED_D0|LED_D1|LED_D2|LED_D3)
|
|
|
|
void cerf_leds_event(led_event_t evt)
|
|
{
|
|
unsigned long flags;
|
|
|
|
local_irq_save(flags);
|
|
|
|
switch (evt) {
|
|
case led_start:
|
|
hw_led_state = LED_MASK;
|
|
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 = LED_MASK;
|
|
break;
|
|
case led_release:
|
|
led_state &= ~LED_STATE_CLAIMED;
|
|
hw_led_state = LED_MASK;
|
|
break;
|
|
|
|
#ifdef CONFIG_LEDS_TIMER
|
|
case led_timer:
|
|
if (!(led_state & LED_STATE_CLAIMED))
|
|
hw_led_state ^= LED_D0;
|
|
break;
|
|
#endif
|
|
|
|
#ifdef CONFIG_LEDS_CPU
|
|
case led_idle_start:
|
|
if (!(led_state & LED_STATE_CLAIMED))
|
|
hw_led_state &= ~LED_D1;
|
|
break;
|
|
|
|
case led_idle_end:
|
|
if (!(led_state & LED_STATE_CLAIMED))
|
|
hw_led_state |= LED_D1;
|
|
break;
|
|
#endif
|
|
case led_green_on:
|
|
if (!(led_state & LED_STATE_CLAIMED))
|
|
hw_led_state &= ~LED_D2;
|
|
break;
|
|
|
|
case led_green_off:
|
|
if (!(led_state & LED_STATE_CLAIMED))
|
|
hw_led_state |= LED_D2;
|
|
break;
|
|
|
|
case led_amber_on:
|
|
if (!(led_state & LED_STATE_CLAIMED))
|
|
hw_led_state &= ~LED_D3;
|
|
break;
|
|
|
|
case led_amber_off:
|
|
if (!(led_state & LED_STATE_CLAIMED))
|
|
hw_led_state |= LED_D3;
|
|
break;
|
|
|
|
case led_red_on:
|
|
if (!(led_state & LED_STATE_CLAIMED))
|
|
hw_led_state &= ~LED_D1;
|
|
break;
|
|
|
|
case led_red_off:
|
|
if (!(led_state & LED_STATE_CLAIMED))
|
|
hw_led_state |= LED_D1;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (led_state & LED_STATE_ENABLED) {
|
|
GPSR = hw_led_state;
|
|
GPCR = hw_led_state ^ LED_MASK;
|
|
}
|
|
|
|
local_irq_restore(flags);
|
|
}
|