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3179108d RP |
1 | /* |
2 | * LED Triggers Core | |
3 | * | |
4 | * Copyright 2005-2006 Openedhand Ltd. | |
5 | * | |
6 | * Author: Richard Purdie <rpurdie@openedhand.com> | |
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 | ||
3179108d RP |
14 | #include <linux/kernel.h> |
15 | #include <linux/init.h> | |
16 | #include <linux/platform_device.h> | |
17 | #include <linux/leds.h> | |
a09e64fb RK |
18 | #include <mach/corgi.h> |
19 | #include <mach/hardware.h> | |
20 | #include <mach/pxa-regs.h> | |
3179108d RP |
21 | #include <asm/hardware/scoop.h> |
22 | ||
4d404fd5 NM |
23 | static void corgiled_amber_set(struct led_classdev *led_cdev, |
24 | enum led_brightness value) | |
3179108d RP |
25 | { |
26 | if (value) | |
27 | GPSR0 = GPIO_bit(CORGI_GPIO_LED_ORANGE); | |
28 | else | |
29 | GPCR0 = GPIO_bit(CORGI_GPIO_LED_ORANGE); | |
30 | } | |
31 | ||
4d404fd5 NM |
32 | static void corgiled_green_set(struct led_classdev *led_cdev, |
33 | enum led_brightness value) | |
3179108d RP |
34 | { |
35 | if (value) | |
36 | set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN); | |
37 | else | |
38 | reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN); | |
39 | } | |
40 | ||
41 | static struct led_classdev corgi_amber_led = { | |
6c152bee | 42 | .name = "corgi:amber:charge", |
3179108d RP |
43 | .default_trigger = "sharpsl-charge", |
44 | .brightness_set = corgiled_amber_set, | |
45 | }; | |
46 | ||
47 | static struct led_classdev corgi_green_led = { | |
6c152bee | 48 | .name = "corgi:green:mail", |
3179108d RP |
49 | .default_trigger = "nand-disk", |
50 | .brightness_set = corgiled_green_set, | |
51 | }; | |
52 | ||
53 | #ifdef CONFIG_PM | |
54 | static int corgiled_suspend(struct platform_device *dev, pm_message_t state) | |
55 | { | |
56 | #ifdef CONFIG_LEDS_TRIGGERS | |
4d404fd5 NM |
57 | if (corgi_amber_led.trigger && |
58 | strcmp(corgi_amber_led.trigger->name, "sharpsl-charge")) | |
3179108d RP |
59 | #endif |
60 | led_classdev_suspend(&corgi_amber_led); | |
61 | led_classdev_suspend(&corgi_green_led); | |
62 | return 0; | |
63 | } | |
64 | ||
65 | static int corgiled_resume(struct platform_device *dev) | |
66 | { | |
67 | led_classdev_resume(&corgi_amber_led); | |
68 | led_classdev_resume(&corgi_green_led); | |
69 | return 0; | |
70 | } | |
71 | #endif | |
72 | ||
73 | static int corgiled_probe(struct platform_device *pdev) | |
74 | { | |
75 | int ret; | |
76 | ||
77 | ret = led_classdev_register(&pdev->dev, &corgi_amber_led); | |
78 | if (ret < 0) | |
79 | return ret; | |
80 | ||
81 | ret = led_classdev_register(&pdev->dev, &corgi_green_led); | |
82 | if (ret < 0) | |
83 | led_classdev_unregister(&corgi_amber_led); | |
84 | ||
85 | return ret; | |
86 | } | |
87 | ||
88 | static int corgiled_remove(struct platform_device *pdev) | |
89 | { | |
90 | led_classdev_unregister(&corgi_amber_led); | |
91 | led_classdev_unregister(&corgi_green_led); | |
92 | return 0; | |
93 | } | |
94 | ||
95 | static struct platform_driver corgiled_driver = { | |
96 | .probe = corgiled_probe, | |
97 | .remove = corgiled_remove, | |
98 | #ifdef CONFIG_PM | |
99 | .suspend = corgiled_suspend, | |
100 | .resume = corgiled_resume, | |
101 | #endif | |
102 | .driver = { | |
103 | .name = "corgi-led", | |
3c4ded97 | 104 | .owner = THIS_MODULE, |
3179108d RP |
105 | }, |
106 | }; | |
107 | ||
108 | static int __init corgiled_init(void) | |
109 | { | |
110 | return platform_driver_register(&corgiled_driver); | |
111 | } | |
112 | ||
113 | static void __exit corgiled_exit(void) | |
114 | { | |
4d404fd5 | 115 | platform_driver_unregister(&corgiled_driver); |
3179108d RP |
116 | } |
117 | ||
118 | module_init(corgiled_init); | |
119 | module_exit(corgiled_exit); | |
120 | ||
121 | MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>"); | |
122 | MODULE_DESCRIPTION("Corgi LED driver"); | |
123 | MODULE_LICENSE("GPL"); | |
3c4ded97 | 124 | MODULE_ALIAS("platform:corgi-led"); |