mirror of https://gitee.com/openkylin/linux.git
102 lines
1.6 KiB
C
102 lines
1.6 KiB
C
/*
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* linux/arch/arm/mach-sa1100/leds-simpad.c
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*
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* Author: Juergen Messerer <juergen.messerer@siemens.ch>
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*/
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#include <linux/config.h>
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#include <linux/init.h>
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#include <asm/hardware.h>
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#include <asm/leds.h>
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#include <asm/system.h>
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#include <asm/arch/simpad.h>
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#include "leds.h"
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#define LED_STATE_ENABLED 1
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#define LED_STATE_CLAIMED 2
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static unsigned int led_state;
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static unsigned int hw_led_state;
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#define LED_GREEN (1)
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#define LED_MASK (1)
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extern void set_cs3_bit(int value);
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extern void clear_cs3_bit(int value);
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void simpad_leds_event(led_event_t evt)
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{
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switch (evt)
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{
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case led_start:
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hw_led_state = LED_GREEN;
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led_state = LED_STATE_ENABLED;
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break;
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case led_stop:
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led_state &= ~LED_STATE_ENABLED;
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break;
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case led_claim:
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led_state |= LED_STATE_CLAIMED;
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hw_led_state = LED_GREEN;
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break;
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case led_release:
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led_state &= ~LED_STATE_CLAIMED;
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hw_led_state = LED_GREEN;
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break;
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#ifdef CONFIG_LEDS_TIMER
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case led_timer:
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if (!(led_state & LED_STATE_CLAIMED))
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hw_led_state ^= LED_GREEN;
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break;
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#endif
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#ifdef CONFIG_LEDS_CPU
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case led_idle_start:
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break;
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case led_idle_end:
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break;
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#endif
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case led_halted:
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break;
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case led_green_on:
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if (led_state & LED_STATE_CLAIMED)
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hw_led_state |= LED_GREEN;
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break;
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case led_green_off:
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if (led_state & LED_STATE_CLAIMED)
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hw_led_state &= ~LED_GREEN;
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break;
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case led_amber_on:
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break;
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case led_amber_off:
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break;
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case led_red_on:
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break;
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case led_red_off:
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break;
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default:
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break;
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}
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if (led_state & LED_STATE_ENABLED)
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set_cs3_bit(LED2_ON);
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else
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clear_cs3_bit(LED2_ON);
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}
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