projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| d39a7a63 KE |
1 | /* |
| 2 | * LED Triggers Core | |
| 3 | * For the HP Jornada 620/660/680/690 handhelds | |
| 4 | * | |
| 5 | * Copyright 2008 Kristoffer Ericson <kristoffer.ericson@gmail.com> | |
| 6 | * this driver is based on leds-spitz.c by Richard Purdie. | |
| 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 | ||
| 86383b55 | 13 | #include <linux/module.h> |
| d39a7a63 KE |
14 | #include <linux/kernel.h> |
| 15 | #include <linux/init.h> | |
| 16 | #include <linux/platform_device.h> | |
| 17 | #include <linux/leds.h> | |
| 18 | #include <asm/hd64461.h> | |
| 7639a454 | 19 | #include <mach/hp6xx.h> |
| d39a7a63 | 20 | |
| 4d404fd5 NM |
21 | static void hp6xxled_green_set(struct led_classdev *led_cdev, |
| 22 | enum led_brightness value) | |
| d39a7a63 KE |
23 | { |
| 24 | u8 v8; | |
| 25 | ||
| 26 | v8 = inb(PKDR); | |
| 27 | if (value) | |
| 28 | outb(v8 & (~PKDR_LED_GREEN), PKDR); | |
| 29 | else | |
| 30 | outb(v8 | PKDR_LED_GREEN, PKDR); | |
| 31 | } | |
| 32 | ||
| 4d404fd5 NM |
33 | static void hp6xxled_red_set(struct led_classdev *led_cdev, |
| 34 | enum led_brightness value) | |
| d39a7a63 KE |
35 | { |
| 36 | u16 v16; | |
| 37 | ||
| 38 | v16 = inw(HD64461_GPBDR); | |
| 39 | if (value) | |
| 40 | outw(v16 & (~HD64461_GPBDR_LED_RED), HD64461_GPBDR); | |
| 41 | else | |
| 42 | outw(v16 | HD64461_GPBDR_LED_RED, HD64461_GPBDR); | |
| 43 | } | |
| 44 | ||
| 45 | static struct led_classdev hp6xx_red_led = { | |
| 46 | .name = "hp6xx:red", | |
| 47 | .default_trigger = "hp6xx-charge", | |
| 48 | .brightness_set = hp6xxled_red_set, | |
| 859cb7f2 | 49 | .flags = LED_CORE_SUSPENDRESUME, |
| d39a7a63 KE |
50 | }; |
| 51 | ||
| 52 | static struct led_classdev hp6xx_green_led = { | |
| 53 | .name = "hp6xx:green", | |
| 54 | .default_trigger = "ide-disk", | |
| 55 | .brightness_set = hp6xxled_green_set, | |
| 859cb7f2 | 56 | .flags = LED_CORE_SUSPENDRESUME, |
| d39a7a63 KE |
57 | }; |
| 58 | ||
| d39a7a63 KE |
59 | static int hp6xxled_probe(struct platform_device *pdev) |
| 60 | { | |
| 61 | int ret; | |
| 62 | ||
| 63 | ret = led_classdev_register(&pdev->dev, &hp6xx_red_led); | |
| 64 | if (ret < 0) | |
| 65 | return ret; | |
| 66 | ||
| 67 | ret = led_classdev_register(&pdev->dev, &hp6xx_green_led); | |
| 68 | if (ret < 0) | |
| 69 | led_classdev_unregister(&hp6xx_red_led); | |
| 70 | ||
| 71 | return ret; | |
| 72 | } | |
| 73 | ||
| 74 | static int hp6xxled_remove(struct platform_device *pdev) | |
| 75 | { | |
| 76 | led_classdev_unregister(&hp6xx_red_led); | |
| 77 | led_classdev_unregister(&hp6xx_green_led); | |
| 78 | ||
| 79 | return 0; | |
| 80 | } | |
| 81 | ||
| 3c4ded97 KS |
82 | /* work with hotplug and coldplug */ |
| 83 | MODULE_ALIAS("platform:hp6xx-led"); | |
| 84 | ||
| d39a7a63 KE |
85 | static struct platform_driver hp6xxled_driver = { |
| 86 | .probe = hp6xxled_probe, | |
| 87 | .remove = hp6xxled_remove, | |
| d39a7a63 KE |
88 | .driver = { |
| 89 | .name = "hp6xx-led", | |
| 3c4ded97 | 90 | .owner = THIS_MODULE, |
| d39a7a63 KE |
91 | }, |
| 92 | }; | |
| 93 | ||
| 94 | static int __init hp6xxled_init(void) | |
| 95 | { | |
| 96 | return platform_driver_register(&hp6xxled_driver); | |
| 97 | } | |
| 98 | ||
| 99 | static void __exit hp6xxled_exit(void) | |
| 100 | { | |
| 101 | platform_driver_unregister(&hp6xxled_driver); | |
| 102 | } | |
| 103 | ||
| 104 | module_init(hp6xxled_init); | |
| 105 | module_exit(hp6xxled_exit); | |
| 106 | ||
| 107 | MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>"); | |
| 108 | MODULE_DESCRIPTION("HP Jornada 6xx LED driver"); | |
| 109 | MODULE_LICENSE("GPL"); |