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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> | |
18 | #include <asm/hardware/scoop.h> | |
19 | #include <asm/mach-types.h> | |
20 | #include <asm/arch/hardware.h> | |
21 | #include <asm/arch/pxa-regs.h> | |
22 | #include <asm/arch/spitz.h> | |
23 | ||
24 | static void spitzled_amber_set(struct led_classdev *led_cdev, enum led_brightness value) | |
25 | { | |
26 | if (value) | |
27 | set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_ORANGE); | |
28 | else | |
29 | reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_ORANGE); | |
30 | } | |
31 | ||
32 | static void spitzled_green_set(struct led_classdev *led_cdev, enum led_brightness value) | |
33 | { | |
34 | if (value) | |
35 | set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_GREEN); | |
36 | else | |
37 | reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_GREEN); | |
38 | } | |
39 | ||
40 | static struct led_classdev spitz_amber_led = { | |
41 | .name = "spitz:amber", | |
42 | .default_trigger = "sharpsl-charge", | |
43 | .brightness_set = spitzled_amber_set, | |
44 | }; | |
45 | ||
46 | static struct led_classdev spitz_green_led = { | |
47 | .name = "spitz:green", | |
48 | .default_trigger = "ide-disk", | |
49 | .brightness_set = spitzled_green_set, | |
50 | }; | |
51 | ||
52 | #ifdef CONFIG_PM | |
53 | static int spitzled_suspend(struct platform_device *dev, pm_message_t state) | |
54 | { | |
55 | #ifdef CONFIG_LEDS_TRIGGERS | |
56 | if (spitz_amber_led.trigger && strcmp(spitz_amber_led.trigger->name, "sharpsl-charge")) | |
57 | #endif | |
58 | led_classdev_suspend(&spitz_amber_led); | |
59 | led_classdev_suspend(&spitz_green_led); | |
60 | return 0; | |
61 | } | |
62 | ||
63 | static int spitzled_resume(struct platform_device *dev) | |
64 | { | |
65 | led_classdev_resume(&spitz_amber_led); | |
66 | led_classdev_resume(&spitz_green_led); | |
67 | return 0; | |
68 | } | |
69 | #endif | |
70 | ||
71 | static int spitzled_probe(struct platform_device *pdev) | |
72 | { | |
73 | int ret; | |
74 | ||
75 | if (machine_is_akita()) | |
76 | spitz_green_led.default_trigger = "nand-disk"; | |
77 | ||
78 | ret = led_classdev_register(&pdev->dev, &spitz_amber_led); | |
79 | if (ret < 0) | |
80 | return ret; | |
81 | ||
82 | ret = led_classdev_register(&pdev->dev, &spitz_green_led); | |
83 | if (ret < 0) | |
84 | led_classdev_unregister(&spitz_amber_led); | |
85 | ||
86 | return ret; | |
87 | } | |
88 | ||
89 | static int spitzled_remove(struct platform_device *pdev) | |
90 | { | |
91 | led_classdev_unregister(&spitz_amber_led); | |
92 | led_classdev_unregister(&spitz_green_led); | |
93 | ||
94 | return 0; | |
95 | } | |
96 | ||
97 | static struct platform_driver spitzled_driver = { | |
98 | .probe = spitzled_probe, | |
99 | .remove = spitzled_remove, | |
100 | #ifdef CONFIG_PM | |
101 | .suspend = spitzled_suspend, | |
102 | .resume = spitzled_resume, | |
103 | #endif | |
104 | .driver = { | |
105 | .name = "spitz-led", | |
106 | }, | |
107 | }; | |
108 | ||
109 | static int __init spitzled_init(void) | |
110 | { | |
111 | return platform_driver_register(&spitzled_driver); | |
112 | } | |
113 | ||
114 | static void __exit spitzled_exit(void) | |
115 | { | |
116 | platform_driver_unregister(&spitzled_driver); | |
117 | } | |
118 | ||
119 | module_init(spitzled_init); | |
120 | module_exit(spitzled_exit); | |
121 | ||
122 | MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>"); | |
123 | MODULE_DESCRIPTION("Spitz LED driver"); | |
124 | MODULE_LICENSE("GPL"); |