- /*
- * linux/arch/arm/mach-sa1100/leds-simpad.c
- *
- * Author: Juergen Messerer <juergen.messerer@siemens.ch>
- */
- #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_GREEN (1)
- #define LED_MASK (1)
- extern void set_cs3_bit(int value);
- extern void clear_cs3_bit(int value);
- void simpad_leds_event(led_event_t evt)
- {
- unsigned long flags;
- //local_irq_save(flags);
- switch (evt)
- {
- case led_start:
- hw_led_state = LED_GREEN;
- 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_GREEN;
- break;
- case led_release:
- led_state &= ~LED_STATE_CLAIMED;
- hw_led_state = LED_GREEN;
- break;
- #ifdef CONFIG_LEDS_TIMER
- case led_timer:
- if (!(led_state & LED_STATE_CLAIMED))
- hw_led_state ^= LED_GREEN;
- break;
- #endif
- #ifdef CONFIG_LEDS_CPU
- case led_idle_start:
- break;
- case led_idle_end:
- break;
- #endif
- case led_halted:
- break;
- case led_green_on:
- if (led_state & LED_STATE_CLAIMED)
- hw_led_state |= LED_GREEN;
- break;
- case led_green_off:
- if (led_state & LED_STATE_CLAIMED)
- hw_led_state &= ~LED_GREEN;
- 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)
- set_cs3_bit(LED2_ON);
- else
- clear_cs3_bit(LED2_ON);
- //local_irq_restore(flags);
- }