2 * linux/arch/arm/mach-sa1100/leds-cerf.c
6 #include <linux/init.h>
8 #include <mach/hardware.h>
14 #define LED_STATE_ENABLED 1
15 #define LED_STATE_CLAIMED 2
17 static unsigned int led_state
;
18 static unsigned int hw_led_state
;
20 #define LED_D0 GPIO_GPIO(0)
21 #define LED_D1 GPIO_GPIO(1)
22 #define LED_D2 GPIO_GPIO(2)
23 #define LED_D3 GPIO_GPIO(3)
24 #define LED_MASK (LED_D0|LED_D1|LED_D2|LED_D3)
26 void cerf_leds_event(led_event_t evt
)
30 local_irq_save(flags
);
34 hw_led_state
= LED_MASK
;
35 led_state
= LED_STATE_ENABLED
;
39 led_state
&= ~LED_STATE_ENABLED
;
43 led_state
|= LED_STATE_CLAIMED
;
44 hw_led_state
= LED_MASK
;
47 led_state
&= ~LED_STATE_CLAIMED
;
48 hw_led_state
= LED_MASK
;
51 #ifdef CONFIG_LEDS_TIMER
53 if (!(led_state
& LED_STATE_CLAIMED
))
54 hw_led_state
^= LED_D0
;
58 #ifdef CONFIG_LEDS_CPU
60 if (!(led_state
& LED_STATE_CLAIMED
))
61 hw_led_state
&= ~LED_D1
;
65 if (!(led_state
& LED_STATE_CLAIMED
))
66 hw_led_state
|= LED_D1
;
70 if (!(led_state
& LED_STATE_CLAIMED
))
71 hw_led_state
&= ~LED_D2
;
75 if (!(led_state
& LED_STATE_CLAIMED
))
76 hw_led_state
|= LED_D2
;
80 if (!(led_state
& LED_STATE_CLAIMED
))
81 hw_led_state
&= ~LED_D3
;
85 if (!(led_state
& LED_STATE_CLAIMED
))
86 hw_led_state
|= LED_D3
;
90 if (!(led_state
& LED_STATE_CLAIMED
))
91 hw_led_state
&= ~LED_D1
;
95 if (!(led_state
& LED_STATE_CLAIMED
))
96 hw_led_state
|= LED_D1
;
103 if (led_state
& LED_STATE_ENABLED
) {
105 GPCR
= hw_led_state
^ LED_MASK
;
108 local_irq_restore(flags
);
This page took 0.033229 seconds and 6 git commands to generate.