Linux 3.3-rc6
[linux/fpc-iii.git] / drivers / leds / leds-locomo.c
blob80ba048889d61faa76195805cd622b1dada80d02
1 /*
2 * linux/drivers/leds/leds-locomo.c
4 * Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/module.h>
14 #include <linux/device.h>
15 #include <linux/leds.h>
17 #include <mach/hardware.h>
18 #include <asm/hardware/locomo.h>
20 static void locomoled_brightness_set(struct led_classdev *led_cdev,
21 enum led_brightness value, int offset)
23 struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent);
24 unsigned long flags;
26 local_irq_save(flags);
27 if (value)
28 locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset);
29 else
30 locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset);
31 local_irq_restore(flags);
34 static void locomoled_brightness_set0(struct led_classdev *led_cdev,
35 enum led_brightness value)
37 locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0);
40 static void locomoled_brightness_set1(struct led_classdev *led_cdev,
41 enum led_brightness value)
43 locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1);
46 static struct led_classdev locomo_led0 = {
47 .name = "locomo:amber:charge",
48 .default_trigger = "main-battery-charging",
49 .brightness_set = locomoled_brightness_set0,
52 static struct led_classdev locomo_led1 = {
53 .name = "locomo:green:mail",
54 .default_trigger = "nand-disk",
55 .brightness_set = locomoled_brightness_set1,
58 static int locomoled_probe(struct locomo_dev *ldev)
60 int ret;
62 ret = led_classdev_register(&ldev->dev, &locomo_led0);
63 if (ret < 0)
64 return ret;
66 ret = led_classdev_register(&ldev->dev, &locomo_led1);
67 if (ret < 0)
68 led_classdev_unregister(&locomo_led0);
70 return ret;
73 static int locomoled_remove(struct locomo_dev *dev)
75 led_classdev_unregister(&locomo_led0);
76 led_classdev_unregister(&locomo_led1);
77 return 0;
80 static struct locomo_driver locomoled_driver = {
81 .drv = {
82 .name = "locomoled"
84 .devid = LOCOMO_DEVID_LED,
85 .probe = locomoled_probe,
86 .remove = locomoled_remove,
89 static int __init locomoled_init(void)
91 return locomo_driver_register(&locomoled_driver);
93 module_init(locomoled_init);
95 MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>");
96 MODULE_DESCRIPTION("Locomo LED driver");
97 MODULE_LICENSE("GPL");