projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 4d3cb354 | 1 | /* |
| f30c2269 | 2 | * linux/drivers/leds/leds-locomo.c |
| 4d3cb354 RP |
3 | * |
| 4 | * Copyright (C) 2005 John Lenz <lenz@cs.wisc.edu> | |
| 5 | * | |
| 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 | */ | |
| 10 | ||
| 4d3cb354 RP |
11 | #include <linux/kernel.h> |
| 12 | #include <linux/init.h> | |
| 13 | #include <linux/device.h> | |
| 14 | #include <linux/leds.h> | |
| 15 | ||
| a09e64fb | 16 | #include <mach/hardware.h> |
| 4d3cb354 RP |
17 | #include <asm/hardware/locomo.h> |
| 18 | ||
| 19 | static void locomoled_brightness_set(struct led_classdev *led_cdev, | |
| 20 | enum led_brightness value, int offset) | |
| 21 | { | |
| 8f115cd5 | 22 | struct locomo_dev *locomo_dev = LOCOMO_DEV(led_cdev->dev->parent); |
| 4d3cb354 RP |
23 | unsigned long flags; |
| 24 | ||
| 25 | local_irq_save(flags); | |
| 26 | if (value) | |
| 27 | locomo_writel(LOCOMO_LPT_TOFH, locomo_dev->mapbase + offset); | |
| 28 | else | |
| 29 | locomo_writel(LOCOMO_LPT_TOFL, locomo_dev->mapbase + offset); | |
| 30 | local_irq_restore(flags); | |
| 31 | } | |
| 32 | ||
| 33 | static void locomoled_brightness_set0(struct led_classdev *led_cdev, | |
| 34 | enum led_brightness value) | |
| 35 | { | |
| 36 | locomoled_brightness_set(led_cdev, value, LOCOMO_LPT0); | |
| 37 | } | |
| 38 | ||
| 39 | static void locomoled_brightness_set1(struct led_classdev *led_cdev, | |
| 40 | enum led_brightness value) | |
| 41 | { | |
| 42 | locomoled_brightness_set(led_cdev, value, LOCOMO_LPT1); | |
| 43 | } | |
| 44 | ||
| 45 | static struct led_classdev locomo_led0 = { | |
| 6c152bee | 46 | .name = "locomo:amber:charge", |
| b7408aff | 47 | .default_trigger = "sharpsl-charge", |
| 4d3cb354 RP |
48 | .brightness_set = locomoled_brightness_set0, |
| 49 | }; | |
| 50 | ||
| 51 | static struct led_classdev locomo_led1 = { | |
| 6c152bee | 52 | .name = "locomo:green:mail", |
| b7408aff | 53 | .default_trigger = "nand-disk", |
| 4d3cb354 RP |
54 | .brightness_set = locomoled_brightness_set1, |
| 55 | }; | |
| 56 | ||
| 57 | static int locomoled_probe(struct locomo_dev *ldev) | |
| 58 | { | |
| 59 | int ret; | |
| 60 | ||
| 61 | ret = led_classdev_register(&ldev->dev, &locomo_led0); | |
| 62 | if (ret < 0) | |
| 63 | return ret; | |
| 64 | ||
| 65 | ret = led_classdev_register(&ldev->dev, &locomo_led1); | |
| 66 | if (ret < 0) | |
| 67 | led_classdev_unregister(&locomo_led0); | |
| 68 | ||
| 69 | return ret; | |
| 70 | } | |
| 71 | ||
| 72 | static int locomoled_remove(struct locomo_dev *dev) | |
| 73 | { | |
| 74 | led_classdev_unregister(&locomo_led0); | |
| 75 | led_classdev_unregister(&locomo_led1); | |
| 76 | return 0; | |
| 77 | } | |
| 78 | ||
| 79 | static struct locomo_driver locomoled_driver = { | |
| 80 | .drv = { | |
| 81 | .name = "locomoled" | |
| 82 | }, | |
| 83 | .devid = LOCOMO_DEVID_LED, | |
| 84 | .probe = locomoled_probe, | |
| 85 | .remove = locomoled_remove, | |
| 86 | }; | |
| 87 | ||
| 88 | static int __init locomoled_init(void) | |
| 89 | { | |
| 90 | return locomo_driver_register(&locomoled_driver); | |
| 91 | } | |
| 92 | module_init(locomoled_init); | |
| 93 | ||
| 94 | MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>"); | |
| 95 | MODULE_DESCRIPTION("Locomo LED driver"); | |
| 96 | MODULE_LICENSE("GPL"); |