diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/mach-sa1100/leds-badge4.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-badge4.c')
-rw-r--r-- | arch/arm/mach-sa1100/leds-badge4.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/leds-badge4.c b/arch/arm/mach-sa1100/leds-badge4.c new file mode 100644 index 000000000000..0a8f87bb6c4f --- /dev/null +++ b/arch/arm/mach-sa1100/leds-badge4.c | |||
@@ -0,0 +1,112 @@ | |||
1 | /* | ||
2 | * linux/arch/arm/mach-sa1100/leds-badge4.c | ||
3 | * | ||
4 | * Author: Christopher Hoover <ch@hpl.hp.com> | ||
5 | * Copyright (C) 2002 Hewlett-Packard Company | ||
6 | * | ||
7 | * This program is free software; you can redistribute it and/or modify | ||
8 | * it under the terms of the GNU General Public License version 2 as | ||
9 | * published by the Free Software Foundation. | ||
10 | * | ||
11 | */ | ||
12 | |||
13 | #include <linux/config.h> | ||
14 | #include <linux/init.h> | ||
15 | |||
16 | #include <asm/hardware.h> | ||
17 | #include <asm/leds.h> | ||
18 | #include <asm/system.h> | ||
19 | |||
20 | #include "leds.h" | ||
21 | |||
22 | #define LED_STATE_ENABLED 1 | ||
23 | #define LED_STATE_CLAIMED 2 | ||
24 | |||
25 | static unsigned int led_state; | ||
26 | static unsigned int hw_led_state; | ||
27 | |||
28 | #define LED_RED GPIO_GPIO(7) | ||
29 | #define LED_GREEN GPIO_GPIO(9) | ||
30 | #define LED_MASK (LED_RED|LED_GREEN) | ||
31 | |||
32 | #define LED_IDLE LED_GREEN | ||
33 | #define LED_TIMER LED_RED | ||
34 | |||
35 | void badge4_leds_event(led_event_t evt) | ||
36 | { | ||
37 | unsigned long flags; | ||
38 | |||
39 | local_irq_save(flags); | ||
40 | |||
41 | switch (evt) { | ||
42 | case led_start: | ||
43 | GPDR |= LED_MASK; | ||
44 | hw_led_state = LED_MASK; | ||
45 | led_state = LED_STATE_ENABLED; | ||
46 | break; | ||
47 | |||
48 | case led_stop: | ||
49 | led_state &= ~LED_STATE_ENABLED; | ||
50 | break; | ||
51 | |||
52 | case led_claim: | ||
53 | led_state |= LED_STATE_CLAIMED; | ||
54 | hw_led_state = LED_MASK; | ||
55 | break; | ||
56 | |||
57 | case led_release: | ||
58 | led_state &= ~LED_STATE_CLAIMED; | ||
59 | hw_led_state = LED_MASK; | ||
60 | break; | ||
61 | |||
62 | #ifdef CONFIG_LEDS_TIMER | ||
63 | case led_timer: | ||
64 | if (!(led_state & LED_STATE_CLAIMED)) | ||
65 | hw_led_state ^= LED_TIMER; | ||
66 | break; | ||
67 | #endif | ||
68 | |||
69 | #ifdef CONFIG_LEDS_CPU | ||
70 | case led_idle_start: | ||
71 | /* LED off when system is idle */ | ||
72 | if (!(led_state & LED_STATE_CLAIMED)) | ||
73 | hw_led_state &= ~LED_IDLE; | ||
74 | break; | ||
75 | |||
76 | case led_idle_end: | ||
77 | if (!(led_state & LED_STATE_CLAIMED)) | ||
78 | hw_led_state |= LED_IDLE; | ||
79 | break; | ||
80 | #endif | ||
81 | |||
82 | case led_red_on: | ||
83 | if (!(led_state & LED_STATE_CLAIMED)) | ||
84 | hw_led_state &= ~LED_RED; | ||
85 | break; | ||
86 | |||
87 | case led_red_off: | ||
88 | if (!(led_state & LED_STATE_CLAIMED)) | ||
89 | hw_led_state |= LED_RED; | ||
90 | break; | ||
91 | |||
92 | case led_green_on: | ||
93 | if (!(led_state & LED_STATE_CLAIMED)) | ||
94 | hw_led_state &= ~LED_GREEN; | ||
95 | break; | ||
96 | |||
97 | case led_green_off: | ||
98 | if (!(led_state & LED_STATE_CLAIMED)) | ||
99 | hw_led_state |= LED_GREEN; | ||
100 | break; | ||
101 | |||
102 | default: | ||
103 | break; | ||
104 | } | ||
105 | |||
106 | if (led_state & LED_STATE_ENABLED) { | ||
107 | GPSR = hw_led_state; | ||
108 | GPCR = hw_led_state ^ LED_MASK; | ||
109 | } | ||
110 | |||
111 | local_irq_restore(flags); | ||
112 | } | ||