| Dirk Opfer | 6d0cf3e | 2006-03-31 02:31:12 -0800 | [diff] [blame] | 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 | |
| 15 | #include <linux/config.h> |
| 16 | #include <linux/kernel.h> |
| 17 | #include <linux/init.h> |
| 18 | #include <linux/platform_device.h> |
| 19 | #include <linux/leds.h> |
| 20 | #include <asm/hardware/scoop.h> |
| 21 | #include <asm/mach-types.h> |
| 22 | #include <asm/arch/hardware.h> |
| 23 | #include <asm/arch/pxa-regs.h> |
| 24 | #include <asm/arch/tosa.h> |
| 25 | |
| 26 | static void tosaled_amber_set(struct led_classdev *led_cdev, |
| 27 | enum led_brightness value) |
| 28 | { |
| 29 | if (value) |
| 30 | set_scoop_gpio(&tosascoop_jc_device.dev, |
| 31 | TOSA_SCOOP_JC_CHRG_ERR_LED); |
| 32 | else |
| 33 | reset_scoop_gpio(&tosascoop_jc_device.dev, |
| 34 | TOSA_SCOOP_JC_CHRG_ERR_LED); |
| 35 | } |
| 36 | |
| 37 | static void tosaled_green_set(struct led_classdev *led_cdev, |
| 38 | enum led_brightness value) |
| 39 | { |
| 40 | if (value) |
| 41 | set_scoop_gpio(&tosascoop_jc_device.dev, |
| 42 | TOSA_SCOOP_JC_NOTE_LED); |
| 43 | else |
| 44 | reset_scoop_gpio(&tosascoop_jc_device.dev, |
| 45 | TOSA_SCOOP_JC_NOTE_LED); |
| 46 | } |
| 47 | |
| 48 | static struct led_classdev tosa_amber_led = { |
| 49 | .name = "tosa:amber", |
| 50 | .default_trigger = "sharpsl-charge", |
| 51 | .brightness_set = tosaled_amber_set, |
| 52 | }; |
| 53 | |
| 54 | static struct led_classdev tosa_green_led = { |
| 55 | .name = "tosa:green", |
| 56 | .default_trigger = "nand-disk", |
| 57 | .brightness_set = tosaled_green_set, |
| 58 | }; |
| 59 | |
| 60 | #ifdef CONFIG_PM |
| 61 | static int tosaled_suspend(struct platform_device *dev, pm_message_t state) |
| 62 | { |
| 63 | #ifdef CONFIG_LEDS_TRIGGERS |
| 64 | if (tosa_amber_led.trigger && strcmp(tosa_amber_led.trigger->name, |
| 65 | "sharpsl-charge")) |
| 66 | #endif |
| 67 | led_classdev_suspend(&tosa_amber_led); |
| 68 | led_classdev_suspend(&tosa_green_led); |
| 69 | return 0; |
| 70 | } |
| 71 | |
| 72 | static int tosaled_resume(struct platform_device *dev) |
| 73 | { |
| 74 | led_classdev_resume(&tosa_amber_led); |
| 75 | led_classdev_resume(&tosa_green_led); |
| 76 | return 0; |
| 77 | } |
| 78 | #else |
| 79 | #define tosaled_suspend NULL |
| 80 | #define tosaled_resume NULL |
| 81 | #endif |
| 82 | |
| 83 | static int tosaled_probe(struct platform_device *pdev) |
| 84 | { |
| 85 | int ret; |
| 86 | |
| 87 | ret = led_classdev_register(&pdev->dev, &tosa_amber_led); |
| 88 | if (ret < 0) |
| 89 | return ret; |
| 90 | |
| 91 | ret = led_classdev_register(&pdev->dev, &tosa_green_led); |
| 92 | if (ret < 0) |
| 93 | led_classdev_unregister(&tosa_amber_led); |
| 94 | |
| 95 | return ret; |
| 96 | } |
| 97 | |
| 98 | static int tosaled_remove(struct platform_device *pdev) |
| 99 | { |
| 100 | led_classdev_unregister(&tosa_amber_led); |
| 101 | led_classdev_unregister(&tosa_green_led); |
| 102 | |
| 103 | return 0; |
| 104 | } |
| 105 | |
| 106 | static struct platform_driver tosaled_driver = { |
| 107 | .probe = tosaled_probe, |
| 108 | .remove = tosaled_remove, |
| 109 | .suspend = tosaled_suspend, |
| 110 | .resume = tosaled_resume, |
| 111 | .driver = { |
| 112 | .name = "tosa-led", |
| 113 | }, |
| 114 | }; |
| 115 | |
| 116 | static int __init tosaled_init(void) |
| 117 | { |
| 118 | return platform_driver_register(&tosaled_driver); |
| 119 | } |
| 120 | |
| 121 | static void __exit tosaled_exit(void) |
| 122 | { |
| 123 | platform_driver_unregister(&tosaled_driver); |
| 124 | } |
| 125 | |
| 126 | module_init(tosaled_init); |
| 127 | module_exit(tosaled_exit); |
| 128 | |
| 129 | MODULE_AUTHOR("Dirk Opfer <Dirk@Opfer-Online.de>"); |
| 130 | MODULE_DESCRIPTION("Tosa LED driver"); |
| 131 | MODULE_LICENSE("GPL"); |