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-pxa/leds-mainstone.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-pxa/leds-mainstone.c')
-rw-r--r-- | arch/arm/mach-pxa/leds-mainstone.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/leds-mainstone.c b/arch/arm/mach-pxa/leds-mainstone.c new file mode 100644 index 000000000000..bbd3f87a9fc2 --- /dev/null +++ b/arch/arm/mach-pxa/leds-mainstone.c | |||
@@ -0,0 +1,121 @@ | |||
1 | /* | ||
2 | * linux/arch/arm/mach-pxa/leds-mainstone.c | ||
3 | * | ||
4 | * Author: Nicolas Pitre | ||
5 | * Created: Nov 05, 2002 | ||
6 | * Copyright: MontaVista Software Inc. | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or modify | ||
9 | * it under the terms of the GNU General Public License version 2 as | ||
10 | * published by the Free Software Foundation. | ||
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 <asm/arch/pxa-regs.h> | ||
21 | #include <asm/arch/mainstone.h> | ||
22 | |||
23 | #include "leds.h" | ||
24 | |||
25 | |||
26 | /* 8 discrete leds available for general use: */ | ||
27 | #define D28 (1 << 0) | ||
28 | #define D27 (1 << 1) | ||
29 | #define D26 (1 << 2) | ||
30 | #define D25 (1 << 3) | ||
31 | #define D24 (1 << 4) | ||
32 | #define D23 (1 << 5) | ||
33 | #define D22 (1 << 6) | ||
34 | #define D21 (1 << 7) | ||
35 | |||
36 | #define LED_STATE_ENABLED 1 | ||
37 | #define LED_STATE_CLAIMED 2 | ||
38 | |||
39 | static unsigned int led_state; | ||
40 | static unsigned int hw_led_state; | ||
41 | |||
42 | void mainstone_leds_event(led_event_t evt) | ||
43 | { | ||
44 | unsigned long flags; | ||
45 | |||
46 | local_irq_save(flags); | ||
47 | |||
48 | switch (evt) { | ||
49 | case led_start: | ||
50 | hw_led_state = 0; | ||
51 | led_state = LED_STATE_ENABLED; | ||
52 | break; | ||
53 | |||
54 | case led_stop: | ||
55 | led_state &= ~LED_STATE_ENABLED; | ||
56 | break; | ||
57 | |||
58 | case led_claim: | ||
59 | led_state |= LED_STATE_CLAIMED; | ||
60 | hw_led_state = 0; | ||
61 | break; | ||
62 | |||
63 | case led_release: | ||
64 | led_state &= ~LED_STATE_CLAIMED; | ||
65 | hw_led_state = 0; | ||
66 | break; | ||
67 | |||
68 | #ifdef CONFIG_LEDS_TIMER | ||
69 | case led_timer: | ||
70 | hw_led_state ^= D26; | ||
71 | break; | ||
72 | #endif | ||
73 | |||
74 | #ifdef CONFIG_LEDS_CPU | ||
75 | case led_idle_start: | ||
76 | hw_led_state &= ~D27; | ||
77 | break; | ||
78 | |||
79 | case led_idle_end: | ||
80 | hw_led_state |= D27; | ||
81 | break; | ||
82 | #endif | ||
83 | |||
84 | case led_halted: | ||
85 | break; | ||
86 | |||
87 | case led_green_on: | ||
88 | hw_led_state |= D21;; | ||
89 | break; | ||
90 | |||
91 | case led_green_off: | ||
92 | hw_led_state &= ~D21; | ||
93 | break; | ||
94 | |||
95 | case led_amber_on: | ||
96 | hw_led_state |= D22;; | ||
97 | break; | ||
98 | |||
99 | case led_amber_off: | ||
100 | hw_led_state &= ~D22; | ||
101 | break; | ||
102 | |||
103 | case led_red_on: | ||
104 | hw_led_state |= D23;; | ||
105 | break; | ||
106 | |||
107 | case led_red_off: | ||
108 | hw_led_state &= ~D23; | ||
109 | break; | ||
110 | |||
111 | default: | ||
112 | break; | ||
113 | } | ||
114 | |||
115 | if (led_state & LED_STATE_ENABLED) | ||
116 | MST_LEDCTRL = (MST_LEDCTRL | 0xff) & ~hw_led_state; | ||
117 | else | ||
118 | MST_LEDCTRL |= 0xff; | ||
119 | |||
120 | local_irq_restore(flags); | ||
121 | } | ||