projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 3179108d RP |
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 | ||
| 3179108d RP |
14 | #include <linux/kernel.h> |
| 15 | #include <linux/init.h> | |
| 16 | #include <linux/platform_device.h> | |
| 17 | #include <linux/leds.h> | |
| a09e64fb RK |
18 | #include <mach/corgi.h> |
| 19 | #include <mach/hardware.h> | |
| 20 | #include <mach/pxa-regs.h> | |
| 3179108d RP |
21 | #include <asm/hardware/scoop.h> |
| 22 | ||
| 4d404fd5 NM |
23 | static void corgiled_amber_set(struct led_classdev *led_cdev, |
| 24 | enum led_brightness value) | |
| 3179108d RP |
25 | { |
| 26 | if (value) | |
| 27 | GPSR0 = GPIO_bit(CORGI_GPIO_LED_ORANGE); | |
| 28 | else | |
| 29 | GPCR0 = GPIO_bit(CORGI_GPIO_LED_ORANGE); | |
| 30 | } | |
| 31 | ||
| 4d404fd5 NM |
32 | static void corgiled_green_set(struct led_classdev *led_cdev, |
| 33 | enum led_brightness value) | |
| 3179108d RP |
34 | { |
| 35 | if (value) | |
| 36 | set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN); | |
| 37 | else | |
| 38 | reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN); | |
| 39 | } | |
| 40 | ||
| 41 | static struct led_classdev corgi_amber_led = { | |
| 6c152bee | 42 | .name = "corgi:amber:charge", |
| 3179108d RP |
43 | .default_trigger = "sharpsl-charge", |
| 44 | .brightness_set = corgiled_amber_set, | |
| 45 | }; | |
| 46 | ||
| 47 | static struct led_classdev corgi_green_led = { | |
| 6c152bee | 48 | .name = "corgi:green:mail", |
| 3179108d RP |
49 | .default_trigger = "nand-disk", |
| 50 | .brightness_set = corgiled_green_set, | |
| 51 | }; | |
| 52 | ||
| 53 | #ifdef CONFIG_PM | |
| 54 | static int corgiled_suspend(struct platform_device *dev, pm_message_t state) | |
| 55 | { | |
| 56 | #ifdef CONFIG_LEDS_TRIGGERS | |
| 4d404fd5 NM |
57 | if (corgi_amber_led.trigger && |
| 58 | strcmp(corgi_amber_led.trigger->name, "sharpsl-charge")) | |
| 3179108d RP |
59 | #endif |
| 60 | led_classdev_suspend(&corgi_amber_led); | |
| 61 | led_classdev_suspend(&corgi_green_led); | |
| 62 | return 0; | |
| 63 | } | |
| 64 | ||
| 65 | static int corgiled_resume(struct platform_device *dev) | |
| 66 | { | |
| 67 | led_classdev_resume(&corgi_amber_led); | |
| 68 | led_classdev_resume(&corgi_green_led); | |
| 69 | return 0; | |
| 70 | } | |
| 71 | #endif | |
| 72 | ||
| 73 | static int corgiled_probe(struct platform_device *pdev) | |
| 74 | { | |
| 75 | int ret; | |
| 76 | ||
| 77 | ret = led_classdev_register(&pdev->dev, &corgi_amber_led); | |
| 78 | if (ret < 0) | |
| 79 | return ret; | |
| 80 | ||
| 81 | ret = led_classdev_register(&pdev->dev, &corgi_green_led); | |
| 82 | if (ret < 0) | |
| 83 | led_classdev_unregister(&corgi_amber_led); | |
| 84 | ||
| 85 | return ret; | |
| 86 | } | |
| 87 | ||
| 88 | static int corgiled_remove(struct platform_device *pdev) | |
| 89 | { | |
| 90 | led_classdev_unregister(&corgi_amber_led); | |
| 91 | led_classdev_unregister(&corgi_green_led); | |
| 92 | return 0; | |
| 93 | } | |
| 94 | ||
| 95 | static struct platform_driver corgiled_driver = { | |
| 96 | .probe = corgiled_probe, | |
| 97 | .remove = corgiled_remove, | |
| 98 | #ifdef CONFIG_PM | |
| 99 | .suspend = corgiled_suspend, | |
| 100 | .resume = corgiled_resume, | |
| 101 | #endif | |
| 102 | .driver = { | |
| 103 | .name = "corgi-led", | |
| 3c4ded97 | 104 | .owner = THIS_MODULE, |
| 3179108d RP |
105 | }, |
| 106 | }; | |
| 107 | ||
| 108 | static int __init corgiled_init(void) | |
| 109 | { | |
| 110 | return platform_driver_register(&corgiled_driver); | |
| 111 | } | |
| 112 | ||
| 113 | static void __exit corgiled_exit(void) | |
| 114 | { | |
| 4d404fd5 | 115 | platform_driver_unregister(&corgiled_driver); |
| 3179108d RP |
116 | } |
| 117 | ||
| 118 | module_init(corgiled_init); | |
| 119 | module_exit(corgiled_exit); | |
| 120 | ||
| 121 | MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>"); | |
| 122 | MODULE_DESCRIPTION("Corgi LED driver"); | |
| 123 | MODULE_LICENSE("GPL"); | |
| 3c4ded97 | 124 | MODULE_ALIAS("platform:corgi-led"); |