Remove obsolete #include <linux/config.h>
[linux-2.6.git] / arch / arm / mach-sa1100 / leds-cerf.c
1 /*
2  * linux/arch/arm/mach-sa1100/leds-cerf.c
3  *
4  * Author: ???
5  */
6 #include <linux/init.h>
7
8 #include <asm/hardware.h>
9 #include <asm/leds.h>
10 #include <asm/system.h>
11
12 #include "leds.h"
13
14
15 #define LED_STATE_ENABLED       1
16 #define LED_STATE_CLAIMED       2
17
18 static unsigned int led_state;
19 static unsigned int hw_led_state;
20
21 #define LED_D0          GPIO_GPIO(0)
22 #define LED_D1          GPIO_GPIO(1)
23 #define LED_D2          GPIO_GPIO(2)
24 #define LED_D3          GPIO_GPIO(3)
25 #define LED_MASK        (LED_D0|LED_D1|LED_D2|LED_D3)
26
27 void cerf_leds_event(led_event_t evt)
28 {
29         unsigned long flags;
30
31         local_irq_save(flags);
32
33         switch (evt) {
34         case led_start:
35                 hw_led_state = LED_MASK;
36                 led_state = LED_STATE_ENABLED;
37                 break;
38
39         case led_stop:
40                 led_state &= ~LED_STATE_ENABLED;
41                 break;
42
43         case led_claim:
44                 led_state |= LED_STATE_CLAIMED;
45                 hw_led_state = LED_MASK;
46                 break;
47         case led_release:
48                 led_state &= ~LED_STATE_CLAIMED;
49                 hw_led_state = LED_MASK;
50                 break;
51
52 #ifdef CONFIG_LEDS_TIMER
53         case led_timer:
54                 if (!(led_state & LED_STATE_CLAIMED))
55                         hw_led_state ^= LED_D0;
56                 break;
57 #endif
58
59 #ifdef CONFIG_LEDS_CPU
60         case led_idle_start:
61                 if (!(led_state & LED_STATE_CLAIMED))
62                         hw_led_state &= ~LED_D1;
63                 break;
64
65         case led_idle_end:
66                 if (!(led_state & LED_STATE_CLAIMED))
67                         hw_led_state |= LED_D1;
68                 break;
69 #endif
70         case led_green_on:
71                 if (!(led_state & LED_STATE_CLAIMED))
72                         hw_led_state &= ~LED_D2;
73                 break;
74
75         case led_green_off:
76                 if (!(led_state & LED_STATE_CLAIMED))
77                         hw_led_state |= LED_D2;
78                 break;
79
80         case led_amber_on:
81                 if (!(led_state & LED_STATE_CLAIMED))
82                         hw_led_state &= ~LED_D3;
83                 break;
84
85         case led_amber_off:
86                 if (!(led_state & LED_STATE_CLAIMED))
87                         hw_led_state |= LED_D3;
88                 break;
89
90         case led_red_on:
91                 if (!(led_state & LED_STATE_CLAIMED))
92                         hw_led_state &= ~LED_D1;
93                 break;
94
95         case led_red_off:
96                 if (!(led_state & LED_STATE_CLAIMED))
97                         hw_led_state |= LED_D1;
98                 break;
99
100         default:
101                 break;
102         }
103
104         if  (led_state & LED_STATE_ENABLED) {
105                 GPSR = hw_led_state;
106                 GPCR = hw_led_state ^ LED_MASK;
107         }
108
109         local_irq_restore(flags);
110 }