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>
12 #include <asm/arch/simpad.h>
17 #define LED_STATE_ENABLED 1
18 #define LED_STATE_CLAIMED 2
20 static unsigned int led_state;
21 static unsigned int hw_led_state;
26 extern void set_cs3_bit(int value);
27 extern void clear_cs3_bit(int value);
29 void simpad_leds_event(led_event_t evt)
33 //local_irq_save(flags);
38 hw_led_state = LED_GREEN;
39 led_state = LED_STATE_ENABLED;
43 led_state &= ~LED_STATE_ENABLED;
47 led_state |= LED_STATE_CLAIMED;
48 hw_led_state = LED_GREEN;
52 led_state &= ~LED_STATE_CLAIMED;
53 hw_led_state = LED_GREEN;
56 #ifdef CONFIG_LEDS_TIMER
58 if (!(led_state & LED_STATE_CLAIMED))
59 hw_led_state ^= LED_GREEN;
63 #ifdef CONFIG_LEDS_CPU
75 if (led_state & LED_STATE_CLAIMED)
76 hw_led_state |= LED_GREEN;
80 if (led_state & LED_STATE_CLAIMED)
81 hw_led_state &= ~LED_GREEN;
100 if (led_state & LED_STATE_ENABLED)
101 set_cs3_bit(LED2_ON);
103 clear_cs3_bit(LED2_ON);
104 //local_irq_restore(flags);