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
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
24static 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
32static 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
40static struct led_classdev spitz_amber_led = {
41	.name			= "spitz:amber",
42	.default_trigger	= "sharpsl-charge",
43	.brightness_set		= spitzled_amber_set,
44};
45
46static 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
53static 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
63static 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
71static 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
89static 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
97static 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
109static int __init spitzled_init(void)
110{
111	return platform_driver_register(&spitzled_driver);
112}
113
114static void __exit spitzled_exit(void)
115{
116 	platform_driver_unregister(&spitzled_driver);
117}
118
119module_init(spitzled_init);
120module_exit(spitzled_exit);
121
122MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>");
123MODULE_DESCRIPTION("Spitz LED driver");
124MODULE_LICENSE("GPL");
125