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/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 25static 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 36static 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 47static struct led_classdev tosa_amber_led = { 48 .name = "tosa:amber", 49 .default_trigger = "sharpsl-charge", 50 .brightness_set = tosaled_amber_set, 51}; 52 53static 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 60static 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 71static 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 82static 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 97static 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 105static 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 115static int __init tosaled_init(void) 116{ 117 return platform_driver_register(&tosaled_driver); 118} 119 120static void __exit tosaled_exit(void) 121{ 122 platform_driver_unregister(&tosaled_driver); 123} 124 125module_init(tosaled_init); 126module_exit(tosaled_exit); 127 128MODULE_AUTHOR("Dirk Opfer <Dirk@Opfer-Online.de>"); 129MODULE_DESCRIPTION("Tosa LED driver"); 130MODULE_LICENSE("GPL"); 131