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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /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.c117
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
30static unsigned int led_state;
31static unsigned int hw_led_state;
32
33void 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}