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 14#include <linux/kernel.h> 15#include <linux/init.h> 16#include <linux/platform_device.h> 17#include <linux/leds.h> 18#include <asm/hardware/scoop.h> 19#include <asm/mach-types.h> 20#include <asm/arch/hardware.h> 21#include <asm/arch/pxa-regs.h> 22#include <asm/arch/spitz.h> 23 24static void spitzled_amber_set(struct led_classdev *led_cdev, enum led_brightness value) 25{ 26 if (value) 27 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_ORANGE); 28 else 29 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_ORANGE); 30} 31 32static void spitzled_green_set(struct led_classdev *led_cdev, enum led_brightness value) 33{ 34 if (value) 35 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_GREEN); 36 else 37 reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_LED_GREEN); 38} 39 40static struct led_classdev spitz_amber_led = { 41 .name = "spitz:amber", 42 .default_trigger = "sharpsl-charge", 43 .brightness_set = spitzled_amber_set, 44}; 45 46static struct led_classdev spitz_green_led = { 47 .name = "spitz:green", 48 .default_trigger = "ide-disk", 49 .brightness_set = spitzled_green_set, 50}; 51 52#ifdef CONFIG_PM 53static int spitzled_suspend(struct platform_device *dev, pm_message_t state) 54{ 55#ifdef CONFIG_LEDS_TRIGGERS 56 if (spitz_amber_led.trigger && strcmp(spitz_amber_led.trigger->name, "sharpsl-charge")) 57#endif 58 led_classdev_suspend(&spitz_amber_led); 59 led_classdev_suspend(&spitz_green_led); 60 return 0; 61} 62 63static int spitzled_resume(struct platform_device *dev) 64{ 65 led_classdev_resume(&spitz_amber_led); 66 led_classdev_resume(&spitz_green_led); 67 return 0; 68} 69#endif 70 71static int spitzled_probe(struct platform_device *pdev) 72{ 73 int ret; 74 75 if (machine_is_akita()) 76 spitz_green_led.default_trigger = "nand-disk"; 77 78 ret = led_classdev_register(&pdev->dev, &spitz_amber_led); 79 if (ret < 0) 80 return ret; 81 82 ret = led_classdev_register(&pdev->dev, &spitz_green_led); 83 if (ret < 0) 84 led_classdev_unregister(&spitz_amber_led); 85 86 return ret; 87} 88 89static int spitzled_remove(struct platform_device *pdev) 90{ 91 led_classdev_unregister(&spitz_amber_led); 92 led_classdev_unregister(&spitz_green_led); 93 94 return 0; 95} 96 97static struct platform_driver spitzled_driver = { 98 .probe = spitzled_probe, 99 .remove = spitzled_remove, 100#ifdef CONFIG_PM 101 .suspend = spitzled_suspend, 102 .resume = spitzled_resume, 103#endif 104 .driver = { 105 .name = "spitz-led", 106 }, 107}; 108 109static int __init spitzled_init(void) 110{ 111 return platform_driver_register(&spitzled_driver); 112} 113 114static void __exit spitzled_exit(void) 115{ 116 platform_driver_unregister(&spitzled_driver); 117} 118 119module_init(spitzled_init); 120module_exit(spitzled_exit); 121 122MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>"); 123MODULE_DESCRIPTION("Spitz LED driver"); 124MODULE_LICENSE("GPL"); 125