blob: bb7d84df0121d2eafab984d7d4cfc61fcfb056d2 [file] [log] [blame]
Richard Purdie31791082006-03-31 02:31:09 -08001/*
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
14#include <linux/config.h>
15#include <linux/kernel.h>
16#include <linux/init.h>
17#include <linux/platform_device.h>
18#include <linux/leds.h>
19#include <asm/mach-types.h>
20#include <asm/arch/corgi.h>
21#include <asm/arch/hardware.h>
22#include <asm/arch/pxa-regs.h>
23#include <asm/hardware/scoop.h>
24
25static void corgiled_amber_set(struct led_classdev *led_cdev, enum led_brightness value)
26{
27 if (value)
28 GPSR0 = GPIO_bit(CORGI_GPIO_LED_ORANGE);
29 else
30 GPCR0 = GPIO_bit(CORGI_GPIO_LED_ORANGE);
31}
32
33static void corgiled_green_set(struct led_classdev *led_cdev, enum led_brightness value)
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
41static struct led_classdev corgi_amber_led = {
42 .name = "corgi:amber",
43 .default_trigger = "sharpsl-charge",
44 .brightness_set = corgiled_amber_set,
45};
46
47static struct led_classdev corgi_green_led = {
48 .name = "corgi:green",
49 .default_trigger = "nand-disk",
50 .brightness_set = corgiled_green_set,
51};
52
53#ifdef CONFIG_PM
54static int corgiled_suspend(struct platform_device *dev, pm_message_t state)
55{
56#ifdef CONFIG_LEDS_TRIGGERS
57 if (corgi_amber_led.trigger && strcmp(corgi_amber_led.trigger->name, "sharpsl-charge"))
58#endif
59 led_classdev_suspend(&corgi_amber_led);
60 led_classdev_suspend(&corgi_green_led);
61 return 0;
62}
63
64static int corgiled_resume(struct platform_device *dev)
65{
66 led_classdev_resume(&corgi_amber_led);
67 led_classdev_resume(&corgi_green_led);
68 return 0;
69}
70#endif
71
72static int corgiled_probe(struct platform_device *pdev)
73{
74 int ret;
75
76 ret = led_classdev_register(&pdev->dev, &corgi_amber_led);
77 if (ret < 0)
78 return ret;
79
80 ret = led_classdev_register(&pdev->dev, &corgi_green_led);
81 if (ret < 0)
82 led_classdev_unregister(&corgi_amber_led);
83
84 return ret;
85}
86
87static int corgiled_remove(struct platform_device *pdev)
88{
89 led_classdev_unregister(&corgi_amber_led);
90 led_classdev_unregister(&corgi_green_led);
91 return 0;
92}
93
94static struct platform_driver corgiled_driver = {
95 .probe = corgiled_probe,
96 .remove = corgiled_remove,
97#ifdef CONFIG_PM
98 .suspend = corgiled_suspend,
99 .resume = corgiled_resume,
100#endif
101 .driver = {
102 .name = "corgi-led",
103 },
104};
105
106static int __init corgiled_init(void)
107{
108 return platform_driver_register(&corgiled_driver);
109}
110
111static void __exit corgiled_exit(void)
112{
113 platform_driver_unregister(&corgiled_driver);
114}
115
116module_init(corgiled_init);
117module_exit(corgiled_exit);
118
119MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>");
120MODULE_DESCRIPTION("Corgi LED driver");
121MODULE_LICENSE("GPL");