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-lubbock.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-lubbock.c')
-rw-r--r-- | arch/arm/mach-pxa/leds-lubbock.c | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/leds-lubbock.c b/arch/arm/mach-pxa/leds-lubbock.c new file mode 100644 index 000000000000..05cf56059a0f --- /dev/null +++ b/arch/arm/mach-pxa/leds-lubbock.c | |||
@@ -0,0 +1,126 @@ | |||
1 | /* | ||
2 | * linux/arch/arm/mach-pxa/leds-lubbock.c | ||
3 | * | ||
4 | * Copyright (C) 2000 John Dorsey <john+@cs.cmu.edu> | ||
5 | * | ||
6 | * Copyright (c) 2001 Jeff Sutherland <jeffs@accelent.com> | ||
7 | * | ||
8 | * Original (leds-footbridge.c) by Russell King | ||
9 | * | ||
10 | * Major surgery on April 2004 by Nicolas Pitre for less global | ||
11 | * namespace collision. Mostly adapted the Mainstone version. | ||
12 | */ | ||
13 | |||
14 | #include <linux/config.h> | ||
15 | #include <linux/init.h> | ||
16 | |||
17 | #include <asm/hardware.h> | ||
18 | #include <asm/leds.h> | ||
19 | #include <asm/system.h> | ||
20 | #include <asm/arch/pxa-regs.h> | ||
21 | #include <asm/arch/lubbock.h> | ||
22 | |||
23 | #include "leds.h" | ||
24 | |||
25 | /* | ||
26 | * 8 discrete leds available for general use: | ||
27 | * | ||
28 | * Note: bits [15-8] are used to enable/blank the 8 7 segment hex displays | ||
29 | * so be sure to not monkey with them here. | ||
30 | */ | ||
31 | |||
32 | #define D28 (1 << 0) | ||
33 | #define D27 (1 << 1) | ||
34 | #define D26 (1 << 2) | ||
35 | #define D25 (1 << 3) | ||
36 | #define D24 (1 << 4) | ||
37 | #define D23 (1 << 5) | ||
38 | #define D22 (1 << 6) | ||
39 | #define D21 (1 << 7) | ||
40 | |||
41 | #define LED_STATE_ENABLED 1 | ||
42 | #define LED_STATE_CLAIMED 2 | ||
43 | |||
44 | static unsigned int led_state; | ||
45 | static unsigned int hw_led_state; | ||
46 | |||
47 | void lubbock_leds_event(led_event_t evt) | ||
48 | { | ||
49 | unsigned long flags; | ||
50 | |||
51 | local_irq_save(flags); | ||
52 | |||
53 | switch (evt) { | ||
54 | case led_start: | ||
55 | hw_led_state = 0; | ||
56 | led_state = LED_STATE_ENABLED; | ||
57 | break; | ||
58 | |||
59 | case led_stop: | ||
60 | led_state &= ~LED_STATE_ENABLED; | ||
61 | break; | ||
62 | |||
63 | case led_claim: | ||
64 | led_state |= LED_STATE_CLAIMED; | ||
65 | hw_led_state = 0; | ||
66 | break; | ||
67 | |||
68 | case led_release: | ||
69 | led_state &= ~LED_STATE_CLAIMED; | ||
70 | hw_led_state = 0; | ||
71 | break; | ||
72 | |||
73 | #ifdef CONFIG_LEDS_TIMER | ||
74 | case led_timer: | ||
75 | hw_led_state ^= D26; | ||
76 | break; | ||
77 | #endif | ||
78 | |||
79 | #ifdef CONFIG_LEDS_CPU | ||
80 | case led_idle_start: | ||
81 | hw_led_state &= ~D27; | ||
82 | break; | ||
83 | |||
84 | case led_idle_end: | ||
85 | hw_led_state |= D27; | ||
86 | break; | ||
87 | #endif | ||
88 | |||
89 | case led_halted: | ||
90 | break; | ||
91 | |||
92 | case led_green_on: | ||
93 | hw_led_state |= D21; | ||
94 | break; | ||
95 | |||
96 | case led_green_off: | ||
97 | hw_led_state &= ~D21; | ||
98 | break; | ||
99 | |||
100 | case led_amber_on: | ||
101 | hw_led_state |= D22; | ||
102 | break; | ||
103 | |||
104 | case led_amber_off: | ||
105 | hw_led_state &= ~D22; | ||
106 | break; | ||
107 | |||
108 | case led_red_on: | ||
109 | hw_led_state |= D23; | ||
110 | break; | ||
111 | |||
112 | case led_red_off: | ||
113 | hw_led_state &= ~D23; | ||
114 | break; | ||
115 | |||
116 | default: | ||
117 | break; | ||
118 | } | ||
119 | |||
120 | if (led_state & LED_STATE_ENABLED) | ||
121 | LUB_DISC_BLNK_LED = (LUB_DISC_BLNK_LED | 0xff) & ~hw_led_state; | ||
122 | else | ||
123 | LUB_DISC_BLNK_LED |= 0xff; | ||
124 | |||
125 | local_irq_restore(flags); | ||
126 | } | ||