1/*
2 * LED Triggers Core
3 *
4 * Copyright 2005 Dirk Opfer
5 *
6 * Author: Dirk Opfer <Dirk@Opfer-Online.de>
7 *	based on spitz.c
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 *
13 */
14
15#include <linux/kernel.h>
16#include <linux/init.h>
17#include <linux/platform_device.h>
18#include <linux/leds.h>
19#include <asm/hardware/scoop.h>
20#include <asm/mach-types.h>
21#include <asm/arch/hardware.h>
22#include <asm/arch/pxa-regs.h>
23#include <asm/arch/tosa.h>
24
25static void tosaled_amber_set(struct led_classdev *led_cdev,
26				enum led_brightness value)
27{
28	if (value)
29		set_scoop_gpio(&tosascoop_jc_device.dev,
30				TOSA_SCOOP_JC_CHRG_ERR_LED);
31	else
32		reset_scoop_gpio(&tosascoop_jc_device.dev,
33				TOSA_SCOOP_JC_CHRG_ERR_LED);
34}
35
36static void tosaled_green_set(struct led_classdev *led_cdev,
37				enum led_brightness value)
38{
39	if (value)
40		set_scoop_gpio(&tosascoop_jc_device.dev,
41				TOSA_SCOOP_JC_NOTE_LED);
42	else
43		reset_scoop_gpio(&tosascoop_jc_device.dev,
44				TOSA_SCOOP_JC_NOTE_LED);
45}
46
47static struct led_classdev tosa_amber_led = {
48	.name			= "tosa:amber",
49	.default_trigger	= "sharpsl-charge",
50	.brightness_set		= tosaled_amber_set,
51};
52
53static struct led_classdev tosa_green_led = {
54	.name			= "tosa:green",
55	.default_trigger	= "nand-disk",
56	.brightness_set		= tosaled_green_set,
57};
58
59#ifdef CONFIG_PM
60static int tosaled_suspend(struct platform_device *dev, pm_message_t state)
61{
62#ifdef CONFIG_LEDS_TRIGGERS
63	if (tosa_amber_led.trigger && strcmp(tosa_amber_led.trigger->name,
64						"sharpsl-charge"))
65#endif
66		led_classdev_suspend(&tosa_amber_led);
67	led_classdev_suspend(&tosa_green_led);
68	return 0;
69}
70
71static int tosaled_resume(struct platform_device *dev)
72{
73	led_classdev_resume(&tosa_amber_led);
74	led_classdev_resume(&tosa_green_led);
75	return 0;
76}
77#else
78#define tosaled_suspend NULL
79#define tosaled_resume NULL
80#endif
81
82static int tosaled_probe(struct platform_device *pdev)
83{
84	int ret;
85
86	ret = led_classdev_register(&pdev->dev, &tosa_amber_led);
87	if (ret < 0)
88		return ret;
89
90	ret = led_classdev_register(&pdev->dev, &tosa_green_led);
91	if (ret < 0)
92		led_classdev_unregister(&tosa_amber_led);
93
94	return ret;
95}
96
97static int tosaled_remove(struct platform_device *pdev)
98{
99	led_classdev_unregister(&tosa_amber_led);
100	led_classdev_unregister(&tosa_green_led);
101
102	return 0;
103}
104
105static struct platform_driver tosaled_driver = {
106	.probe		= tosaled_probe,
107	.remove		= tosaled_remove,
108	.suspend	= tosaled_suspend,
109	.resume		= tosaled_resume,
110	.driver		= {
111		.name		= "tosa-led",
112	},
113};
114
115static int __init tosaled_init(void)
116{
117	return platform_driver_register(&tosaled_driver);
118}
119
120static void __exit tosaled_exit(void)
121{
122 	platform_driver_unregister(&tosaled_driver);
123}
124
125module_init(tosaled_init);
126module_exit(tosaled_exit);
127
128MODULE_AUTHOR("Dirk Opfer <Dirk@Opfer-Online.de>");
129MODULE_DESCRIPTION("Tosa LED driver");
130MODULE_LICENSE("GPL");
131