diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mach-sa1100/leds-cerf.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/arm/mach-sa1100/leds-cerf.c')
-rw-r--r-- | arch/arm/mach-sa1100/leds-cerf.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/leds-cerf.c b/arch/arm/mach-sa1100/leds-cerf.c new file mode 100644 index 000000000000..f6635a2d0e83 --- /dev/null +++ b/arch/arm/mach-sa1100/leds-cerf.c | |||
@@ -0,0 +1,111 @@ | |||
1 | /* | ||
2 | * linux/arch/arm/mach-sa1100/leds-cerf.c | ||
3 | * | ||
4 | * Author: ??? | ||
5 | */ | ||
6 | #include <linux/config.h> | ||
7 | #include <linux/init.h> | ||
8 | |||
9 | #include <asm/hardware.h> | ||
10 | #include <asm/leds.h> | ||
11 | #include <asm/system.h> | ||
12 | |||
13 | #include "leds.h" | ||
14 | |||
15 | |||
16 | #define LED_STATE_ENABLED 1 | ||
17 | #define LED_STATE_CLAIMED 2 | ||
18 | |||
19 | static unsigned int led_state; | ||
20 | static unsigned int hw_led_state; | ||
21 | |||
22 | #define LED_D0 GPIO_GPIO(0) | ||
23 | #define LED_D1 GPIO_GPIO(1) | ||
24 | #define LED_D2 GPIO_GPIO(2) | ||
25 | #define LED_D3 GPIO_GPIO(3) | ||
26 | #define LED_MASK (LED_D0|LED_D1|LED_D2|LED_D3) | ||
27 | |||
28 | void cerf_leds_event(led_event_t evt) | ||
29 | { | ||
30 | unsigned long flags; | ||
31 | |||
32 | local_irq_save(flags); | ||
33 | |||
34 | switch (evt) { | ||
35 | case led_start: | ||
36 | hw_led_state = LED_MASK; | ||
37 | led_state = LED_STATE_ENABLED; | ||
38 | break; | ||
39 | |||
40 | case led_stop: | ||
41 | led_state &= ~LED_STATE_ENABLED; | ||
42 | break; | ||
43 | |||
44 | case led_claim: | ||
45 | led_state |= LED_STATE_CLAIMED; | ||
46 | hw_led_state = LED_MASK; | ||
47 | break; | ||
48 | case led_release: | ||
49 | led_state &= ~LED_STATE_CLAIMED; | ||
50 | hw_led_state = LED_MASK; | ||
51 | break; | ||
52 | |||
53 | #ifdef CONFIG_LEDS_TIMER | ||
54 | case led_timer: | ||
55 | if (!(led_state & LED_STATE_CLAIMED)) | ||
56 | hw_led_state ^= LED_D0; | ||
57 | break; | ||
58 | #endif | ||
59 | |||
60 | #ifdef CONFIG_LEDS_CPU | ||
61 | case led_idle_start: | ||
62 | if (!(led_state & LED_STATE_CLAIMED)) | ||
63 | hw_led_state &= ~LED_D1; | ||
64 | break; | ||
65 | |||
66 | case led_idle_end: | ||
67 | if (!(led_state & LED_STATE_CLAIMED)) | ||
68 | hw_led_state |= LED_D1; | ||
69 | break; | ||
70 | #endif | ||
71 | case led_green_on: | ||
72 | if (!(led_state & LED_STATE_CLAIMED)) | ||
73 | hw_led_state &= ~LED_D2; | ||
74 | break; | ||
75 | |||
76 | case led_green_off: | ||
77 | if (!(led_state & LED_STATE_CLAIMED)) | ||
78 | hw_led_state |= LED_D2; | ||
79 | break; | ||
80 | |||
81 | case led_amber_on: | ||
82 | if (!(led_state & LED_STATE_CLAIMED)) | ||
83 | hw_led_state &= ~LED_D3; | ||
84 | break; | ||
85 | |||
86 | case led_amber_off: | ||
87 | if (!(led_state & LED_STATE_CLAIMED)) | ||
88 | hw_led_state |= LED_D3; | ||
89 | break; | ||
90 | |||
91 | case led_red_on: | ||
92 | if (!(led_state & LED_STATE_CLAIMED)) | ||
93 | hw_led_state &= ~LED_D1; | ||
94 | break; | ||
95 | |||
96 | case led_red_off: | ||
97 | if (!(led_state & LED_STATE_CLAIMED)) | ||
98 | hw_led_state |= LED_D1; | ||
99 | break; | ||
100 | |||
101 | default: | ||
102 | break; | ||
103 | } | ||
104 | |||
105 | if (led_state & LED_STATE_ENABLED) { | ||
106 | GPSR = hw_led_state; | ||
107 | GPCR = hw_led_state ^ LED_MASK; | ||
108 | } | ||
109 | |||
110 | local_irq_restore(flags); | ||
111 | } | ||