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-idp.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-idp.c')
-rw-r--r-- | arch/arm/mach-pxa/leds-idp.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/leds-idp.c b/arch/arm/mach-pxa/leds-idp.c new file mode 100644 index 000000000000..5eba6ea0b0f7 --- /dev/null +++ b/arch/arm/mach-pxa/leds-idp.c | |||
@@ -0,0 +1,117 @@ | |||
1 | /* | ||
2 | * linux/arch/arm/mach-pxa/leds-idp.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 | * Macros for actual LED manipulation should be in machine specific | ||
11 | * files in this 'mach' directory. | ||
12 | */ | ||
13 | |||
14 | |||
15 | #include <linux/config.h> | ||
16 | #include <linux/init.h> | ||
17 | |||
18 | #include <asm/hardware.h> | ||
19 | #include <asm/leds.h> | ||
20 | #include <asm/system.h> | ||
21 | |||
22 | #include <asm/arch/pxa-regs.h> | ||
23 | #include <asm/arch/idp.h> | ||
24 | |||
25 | #include "leds.h" | ||
26 | |||
27 | #define LED_STATE_ENABLED 1 | ||
28 | #define LED_STATE_CLAIMED 2 | ||
29 | |||
30 | static unsigned int led_state; | ||
31 | static unsigned int hw_led_state; | ||
32 | |||
33 | void idp_leds_event(led_event_t evt) | ||
34 | { | ||
35 | unsigned long flags; | ||
36 | |||
37 | local_irq_save(flags); | ||
38 | |||
39 | switch (evt) { | ||
40 | case led_start: | ||
41 | hw_led_state = IDP_HB_LED | IDP_BUSY_LED; | ||
42 | led_state = LED_STATE_ENABLED; | ||
43 | break; | ||
44 | |||
45 | case led_stop: | ||
46 | led_state &= ~LED_STATE_ENABLED; | ||
47 | break; | ||
48 | |||
49 | case led_claim: | ||
50 | led_state |= LED_STATE_CLAIMED; | ||
51 | hw_led_state = IDP_HB_LED | IDP_BUSY_LED; | ||
52 | break; | ||
53 | |||
54 | case led_release: | ||
55 | led_state &= ~LED_STATE_CLAIMED; | ||
56 | hw_led_state = IDP_HB_LED | IDP_BUSY_LED; | ||
57 | break; | ||
58 | |||
59 | #ifdef CONFIG_LEDS_TIMER | ||
60 | case led_timer: | ||
61 | if (!(led_state & LED_STATE_CLAIMED)) | ||
62 | hw_led_state ^= IDP_HB_LED; | ||
63 | break; | ||
64 | #endif | ||
65 | |||
66 | #ifdef CONFIG_LEDS_CPU | ||
67 | case led_idle_start: | ||
68 | if (!(led_state & LED_STATE_CLAIMED)) | ||
69 | hw_led_state &= ~IDP_BUSY_LED; | ||
70 | break; | ||
71 | |||
72 | case led_idle_end: | ||
73 | if (!(led_state & LED_STATE_CLAIMED)) | ||
74 | hw_led_state |= IDP_BUSY_LED; | ||
75 | break; | ||
76 | #endif | ||
77 | |||
78 | case led_halted: | ||
79 | break; | ||
80 | |||
81 | case led_green_on: | ||
82 | if (led_state & LED_STATE_CLAIMED) | ||
83 | hw_led_state |= IDP_HB_LED; | ||
84 | break; | ||
85 | |||
86 | case led_green_off: | ||
87 | if (led_state & LED_STATE_CLAIMED) | ||
88 | hw_led_state &= ~IDP_HB_LED; | ||
89 | break; | ||
90 | |||
91 | case led_amber_on: | ||
92 | break; | ||
93 | |||
94 | case led_amber_off: | ||
95 | break; | ||
96 | |||
97 | case led_red_on: | ||
98 | if (led_state & LED_STATE_CLAIMED) | ||
99 | hw_led_state |= IDP_BUSY_LED; | ||
100 | break; | ||
101 | |||
102 | case led_red_off: | ||
103 | if (led_state & LED_STATE_CLAIMED) | ||
104 | hw_led_state &= ~IDP_BUSY_LED; | ||
105 | break; | ||
106 | |||
107 | default: | ||
108 | break; | ||
109 | } | ||
110 | |||
111 | if (led_state & LED_STATE_ENABLED) | ||
112 | IDP_CPLD_LED_CONTROL = ( (IDP_CPLD_LED_CONTROL | IDP_LEDS_MASK) & ~hw_led_state); | ||
113 | else | ||
114 | IDP_CPLD_LED_CONTROL |= IDP_LEDS_MASK; | ||
115 | |||
116 | local_irq_restore(flags); | ||
117 | } | ||