projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 6d0cf3e0 DO |
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 | ||
| 6d0cf3e0 DO |
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 | ||
| 25 | static 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 | ||
| 36 | static 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 | ||
| 47 | static struct led_classdev tosa_amber_led = { | |
| 48 | .name = "tosa:amber", | |
| 49 | .default_trigger = "sharpsl-charge", | |
| 50 | .brightness_set = tosaled_amber_set, | |
| 51 | }; | |
| 52 | ||
| 53 | static 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 | |
| 60 | static 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 | ||
| 71 | static 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 | ||
| 82 | static 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 | ||
| 97 | static 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 | ||
| 105 | static 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 | ||
| 115 | static int __init tosaled_init(void) | |
| 116 | { | |
| 117 | return platform_driver_register(&tosaled_driver); | |
| 118 | } | |
| 119 | ||
| 120 | static void __exit tosaled_exit(void) | |
| 121 | { | |
| 122 | platform_driver_unregister(&tosaled_driver); | |
| 123 | } | |
| 124 | ||
| 125 | module_init(tosaled_init); | |
| 126 | module_exit(tosaled_exit); | |
| 127 | ||
| 128 | MODULE_AUTHOR("Dirk Opfer <Dirk@Opfer-Online.de>"); | |
| 129 | MODULE_DESCRIPTION("Tosa LED driver"); | |
| 130 | MODULE_LICENSE("GPL"); |