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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> | |
a09e64fb RK |
20 | #include <mach/hardware.h> |
21 | #include <mach/pxa-regs.h> | |
22 | #include <mach/spitz.h> | |
3179108d | 23 | |
4d404fd5 NM |
24 | static void spitzled_amber_set(struct led_classdev *led_cdev, |
25 | enum led_brightness value) | |
3179108d RP |
26 | { |
27 | if (value) | |
28 | set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_ORANGE); | |
29 | else | |
30 | reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_ORANGE); | |
31 | } | |
32 | ||
4d404fd5 NM |
33 | static void spitzled_green_set(struct led_classdev *led_cdev, |
34 | enum led_brightness value) | |
3179108d RP |
35 | { |
36 | if (value) | |
37 | set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_GREEN); | |
38 | else | |
39 | reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_GREEN); | |
40 | } | |
41 | ||
42 | static struct led_classdev spitz_amber_led = { | |
6c152bee | 43 | .name = "spitz:amber:charge", |
3179108d RP |
44 | .default_trigger = "sharpsl-charge", |
45 | .brightness_set = spitzled_amber_set, | |
46 | }; | |
47 | ||
48 | static struct led_classdev spitz_green_led = { | |
6c152bee | 49 | .name = "spitz:green:hddactivity", |
3179108d RP |
50 | .default_trigger = "ide-disk", |
51 | .brightness_set = spitzled_green_set, | |
52 | }; | |
53 | ||
54 | #ifdef CONFIG_PM | |
55 | static int spitzled_suspend(struct platform_device *dev, pm_message_t state) | |
56 | { | |
57 | #ifdef CONFIG_LEDS_TRIGGERS | |
4d404fd5 NM |
58 | if (spitz_amber_led.trigger && |
59 | strcmp(spitz_amber_led.trigger->name, "sharpsl-charge")) | |
3179108d RP |
60 | #endif |
61 | led_classdev_suspend(&spitz_amber_led); | |
62 | led_classdev_suspend(&spitz_green_led); | |
63 | return 0; | |
64 | } | |
65 | ||
66 | static int spitzled_resume(struct platform_device *dev) | |
67 | { | |
68 | led_classdev_resume(&spitz_amber_led); | |
69 | led_classdev_resume(&spitz_green_led); | |
70 | return 0; | |
71 | } | |
72 | #endif | |
73 | ||
74 | static int spitzled_probe(struct platform_device *pdev) | |
75 | { | |
76 | int ret; | |
77 | ||
6c152bee RP |
78 | if (machine_is_akita()) { |
79 | spitz_green_led.name = "spitz:green:mail"; | |
3179108d | 80 | spitz_green_led.default_trigger = "nand-disk"; |
6c152bee | 81 | } |
3179108d RP |
82 | |
83 | ret = led_classdev_register(&pdev->dev, &spitz_amber_led); | |
84 | if (ret < 0) | |
85 | return ret; | |
86 | ||
87 | ret = led_classdev_register(&pdev->dev, &spitz_green_led); | |
88 | if (ret < 0) | |
89 | led_classdev_unregister(&spitz_amber_led); | |
90 | ||
91 | return ret; | |
92 | } | |
93 | ||
94 | static int spitzled_remove(struct platform_device *pdev) | |
95 | { | |
96 | led_classdev_unregister(&spitz_amber_led); | |
97 | led_classdev_unregister(&spitz_green_led); | |
98 | ||
99 | return 0; | |
100 | } | |
101 | ||
102 | static struct platform_driver spitzled_driver = { | |
103 | .probe = spitzled_probe, | |
104 | .remove = spitzled_remove, | |
105 | #ifdef CONFIG_PM | |
106 | .suspend = spitzled_suspend, | |
107 | .resume = spitzled_resume, | |
108 | #endif | |
109 | .driver = { | |
110 | .name = "spitz-led", | |
3c4ded97 | 111 | .owner = THIS_MODULE, |
3179108d RP |
112 | }, |
113 | }; | |
114 | ||
115 | static int __init spitzled_init(void) | |
116 | { | |
117 | return platform_driver_register(&spitzled_driver); | |
118 | } | |
119 | ||
120 | static void __exit spitzled_exit(void) | |
121 | { | |
4d404fd5 | 122 | platform_driver_unregister(&spitzled_driver); |
3179108d RP |
123 | } |
124 | ||
125 | module_init(spitzled_init); | |
126 | module_exit(spitzled_exit); | |
127 | ||
128 | MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>"); | |
129 | MODULE_DESCRIPTION("Spitz LED driver"); | |
130 | MODULE_LICENSE("GPL"); | |
3c4ded97 | 131 | MODULE_ALIAS("platform:spitz-led"); |