/* * linux/arch/arm/mach-omap1/leds-innovator.c */ #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; void innovator_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; hw_led_state = 0; 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: if (!(led_state & LED_STATE_CLAIMED)) hw_led_state ^= 0; break; #endif #ifdef CONFIG_LEDS_CPU case led_idle_start: if (!(led_state & LED_STATE_CLAIMED)) hw_led_state |= 0; break; case led_idle_end: if (!(led_state & LED_STATE_CLAIMED)) hw_led_state &= ~0; break; #endif case led_halted: break; case led_green_on: if (led_state & LED_STATE_CLAIMED) hw_led_state &= ~0; break; case led_green_off: if (led_state & LED_STATE_CLAIMED) hw_led_state |= 0; break; case led_amber_on: break; case led_amber_off: break; case led_red_on: if (led_state & LED_STATE_CLAIMED) hw_led_state &= ~0; break; case led_red_off: if (led_state & LED_STATE_CLAIMED) hw_led_state |= 0; break; default: break; } if (led_state & LED_STATE_ENABLED) ; local_irq_restore(flags); }