projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 3070033a SH |
1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public | |
| 3 | * License. See the file "COPYING" in the main directory of this archive | |
| 4 | * for more details. | |
| 5 | * | |
| 6 | * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. | |
| 7 | */ | |
| 8 | #include <linux/kernel.h> | |
| 9 | #include <linux/module.h> | |
| 10 | #include <linux/init.h> | |
| 11 | #include <linux/platform_device.h> | |
| 12 | #include <linux/leds.h> | |
| 13 | #include <linux/err.h> | |
| 14 | #include <linux/io.h> | |
| 15 | ||
| 16 | #define DRVNAME "sead3-led" | |
| 17 | ||
| 18 | static struct platform_device *pdev; | |
| 19 | ||
| 20 | static void sead3_pled_set(struct led_classdev *led_cdev, | |
| 21 | enum led_brightness value) | |
| 22 | { | |
| 23 | pr_debug("sead3_pled_set\n"); | |
| 24 | writel(value, (void __iomem *)0xBF000210); /* FIXME */ | |
| 25 | } | |
| 26 | ||
| 27 | static void sead3_fled_set(struct led_classdev *led_cdev, | |
| 28 | enum led_brightness value) | |
| 29 | { | |
| 30 | pr_debug("sead3_fled_set\n"); | |
| 31 | writel(value, (void __iomem *)0xBF000218); /* FIXME */ | |
| 32 | } | |
| 33 | ||
| 34 | static struct led_classdev sead3_pled = { | |
| 35 | .name = "sead3::pled", | |
| 36 | .brightness_set = sead3_pled_set, | |
| 37 | }; | |
| 38 | ||
| 39 | static struct led_classdev sead3_fled = { | |
| 40 | .name = "sead3::fled", | |
| 41 | .brightness_set = sead3_fled_set, | |
| 42 | }; | |
| 43 | ||
| 44 | #ifdef CONFIG_PM | |
| 45 | static int sead3_led_suspend(struct platform_device *dev, | |
| 46 | pm_message_t state) | |
| 47 | { | |
| 48 | led_classdev_suspend(&sead3_pled); | |
| 49 | led_classdev_suspend(&sead3_fled); | |
| 50 | return 0; | |
| 51 | } | |
| 52 | ||
| 53 | static int sead3_led_resume(struct platform_device *dev) | |
| 54 | { | |
| 55 | led_classdev_resume(&sead3_pled); | |
| 56 | led_classdev_resume(&sead3_fled); | |
| 57 | return 0; | |
| 58 | } | |
| 59 | #else | |
| 60 | #define sead3_led_suspend NULL | |
| 61 | #define sead3_led_resume NULL | |
| 62 | #endif | |
| 63 | ||
| 64 | static int sead3_led_probe(struct platform_device *pdev) | |
| 65 | { | |
| 66 | int ret; | |
| 67 | ||
| 68 | ret = led_classdev_register(&pdev->dev, &sead3_pled); | |
| 69 | if (ret < 0) | |
| 70 | return ret; | |
| 71 | ||
| 72 | ret = led_classdev_register(&pdev->dev, &sead3_fled); | |
| 73 | if (ret < 0) | |
| 74 | led_classdev_unregister(&sead3_pled); | |
| 75 | ||
| 76 | return ret; | |
| 77 | } | |
| 78 | ||
| 79 | static int sead3_led_remove(struct platform_device *pdev) | |
| 80 | { | |
| 81 | led_classdev_unregister(&sead3_pled); | |
| 82 | led_classdev_unregister(&sead3_fled); | |
| 83 | return 0; | |
| 84 | } | |
| 85 | ||
| 86 | static struct platform_driver sead3_led_driver = { | |
| 87 | .probe = sead3_led_probe, | |
| 88 | .remove = sead3_led_remove, | |
| 89 | .suspend = sead3_led_suspend, | |
| 90 | .resume = sead3_led_resume, | |
| 91 | .driver = { | |
| 92 | .name = DRVNAME, | |
| 93 | .owner = THIS_MODULE, | |
| 94 | }, | |
| 95 | }; | |
| 96 | ||
| 97 | static int __init sead3_led_init(void) | |
| 98 | { | |
| 99 | int ret; | |
| 100 | ||
| 101 | ret = platform_driver_register(&sead3_led_driver); | |
| 102 | if (ret < 0) | |
| 103 | goto out; | |
| 104 | ||
| 105 | pdev = platform_device_register_simple(DRVNAME, -1, NULL, 0); | |
| 106 | if (IS_ERR(pdev)) { | |
| 107 | ret = PTR_ERR(pdev); | |
| 108 | platform_driver_unregister(&sead3_led_driver); | |
| 109 | goto out; | |
| 110 | } | |
| 111 | ||
| 112 | out: | |
| 113 | return ret; | |
| 114 | } | |
| 115 | ||
| 116 | static void __exit sead3_led_exit(void) | |
| 117 | { | |
| 118 | platform_device_unregister(pdev); | |
| 119 | platform_driver_unregister(&sead3_led_driver); | |
| 120 | } | |
| 121 | ||
| 122 | module_init(sead3_led_init); | |
| 123 | module_exit(sead3_led_exit); | |
| 124 | ||
| 125 | MODULE_AUTHOR("Kristian Kielhofner <kris@krisk.org>"); | |
| 126 | MODULE_DESCRIPTION("SEAD3 LED driver"); | |
| 127 | MODULE_LICENSE("GPL"); | |
| 128 |