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gerrit-public.fairphone.software / kernel / msm / a09e64fbc0094e3073dbb09c3b4bfe4ab669244b / . / arch / arm / mach-omap1 / leds-innovator.c
blob: 9b99c28946239c89c473823295055857acc11909 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1/*
Tony Lindgren7c38cf02005-09-08 23:07:38 +0100[diff] [blame]2 * linux/arch/arm/mach-omap1/leds-innovator.c
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]3 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]4#include <linux/init.h>
5
Russell Kinga09e64f2008-08-05 16:14:15 +0100[diff] [blame^]6#include <mach/hardware.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]7#include <asm/leds.h>
8#include <asm/system.h>
9
10#include "leds.h"
11
12
13#define LED_STATE_ENABLED 1
14#define LED_STATE_CLAIMED 2
15
16static unsigned int led_state;
17static unsigned int hw_led_state;
18
19void innovator_leds_event(led_event_t evt)
20{
21 unsigned long flags;
22
23 local_irq_save(flags);
24
25 switch (evt) {
26 case led_start:
27 hw_led_state = 0;
28 led_state = LED_STATE_ENABLED;
29 break;
30
31 case led_stop:
32 led_state &= ~LED_STATE_ENABLED;
33 hw_led_state = 0;
34 break;
35
36 case led_claim:
37 led_state |= LED_STATE_CLAIMED;
38 hw_led_state = 0;
39 break;
40
41 case led_release:
42 led_state &= ~LED_STATE_CLAIMED;
43 hw_led_state = 0;
44 break;
45
46#ifdef CONFIG_LEDS_TIMER
47 case led_timer:
48 if (!(led_state & LED_STATE_CLAIMED))
49 hw_led_state ^= 0;
50 break;
51#endif
52
53#ifdef CONFIG_LEDS_CPU
54 case led_idle_start:
55 if (!(led_state & LED_STATE_CLAIMED))
56 hw_led_state |= 0;
57 break;
58
59 case led_idle_end:
60 if (!(led_state & LED_STATE_CLAIMED))
61 hw_led_state &= ~0;
62 break;
63#endif
64
65 case led_halted:
66 break;
67
68 case led_green_on:
69 if (led_state & LED_STATE_CLAIMED)
70 hw_led_state &= ~0;
71 break;
72
73 case led_green_off:
74 if (led_state & LED_STATE_CLAIMED)
75 hw_led_state |= 0;
76 break;
77
78 case led_amber_on:
79 break;
80
81 case led_amber_off:
82 break;
83
84 case led_red_on:
85 if (led_state & LED_STATE_CLAIMED)
86 hw_led_state &= ~0;
87 break;
88
89 case led_red_off:
90 if (led_state & LED_STATE_CLAIMED)
91 hw_led_state |= 0;
92 break;
93
94 default:
95 break;
96 }
97
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]98 local_irq_restore(flags);
99}