2 * linux/arch/arm/mach-sa1100/leds-simpad.c
4 * Author: Juergen Messerer <juergen.messerer@siemens.ch>
6 #include <linux/config.h>
7 #include <linux/init.h>
9 #include <asm/hardware.h>
11 #include <asm/system.h>
16 #define LED_STATE_ENABLED 1
17 #define LED_STATE_CLAIMED 2
19 static unsigned int led_state;
20 static unsigned int hw_led_state;
25 extern void set_cs3_bit(int value);
26 extern void clear_cs3_bit(int value);
28 void simpad_leds_event(led_event_t evt)
32 //local_irq_save(flags);
37 hw_led_state = LED_GREEN;
38 led_state = LED_STATE_ENABLED;
42 led_state &= ~LED_STATE_ENABLED;
46 led_state |= LED_STATE_CLAIMED;
47 hw_led_state = LED_GREEN;
51 led_state &= ~LED_STATE_CLAIMED;
52 hw_led_state = LED_GREEN;
55 #ifdef CONFIG_LEDS_TIMER
57 if (!(led_state & LED_STATE_CLAIMED))
58 hw_led_state ^= LED_GREEN;
62 #ifdef CONFIG_LEDS_CPU
74 if (led_state & LED_STATE_CLAIMED)
75 hw_led_state |= LED_GREEN;
79 if (led_state & LED_STATE_CLAIMED)
80 hw_led_state &= ~LED_GREEN;
99 if (led_state & LED_STATE_ENABLED)
100 set_cs3_bit(LED2_ON);
102 clear_cs3_bit(LED2_ON);
103 //local_irq_restore(flags);