| 1 | /* |
| 2 | * USB LED driver for the NETGEAR WNDR3700 |
| 3 | * |
| 4 | * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms of the GNU General Public License version 2 as published |
| 8 | * by the Free Software Foundation. |
| 9 | */ |
| 10 | |
| 11 | #include <linux/leds.h> |
| 12 | #include <linux/module.h> |
| 13 | #include <linux/platform_device.h> |
| 14 | |
| 15 | #include <asm/mach-ath79/ar71xx_regs.h> |
| 16 | #include <asm/mach-ath79/ath79.h> |
| 17 | |
| 18 | #define DRIVER_NAME "wndr3700-led-usb" |
| 19 | |
| 20 | static void wndr3700_usb_led_set(struct led_classdev *cdev, |
| 21 | enum led_brightness brightness) |
| 22 | { |
| 23 | if (brightness) |
| 24 | ath79_device_reset_clear(AR71XX_RESET_GE1_PHY); |
| 25 | else |
| 26 | ath79_device_reset_set(AR71XX_RESET_GE1_PHY); |
| 27 | } |
| 28 | |
| 29 | static enum led_brightness wndr3700_usb_led_get(struct led_classdev *cdev) |
| 30 | { |
| 31 | return ath79_device_reset_get(AR71XX_RESET_GE1_PHY) ? LED_OFF : LED_FULL; |
| 32 | } |
| 33 | |
| 34 | static struct led_classdev wndr3700_usb_led = { |
| 35 | .name = "wndr3700:green:usb", |
| 36 | .brightness_set = wndr3700_usb_led_set, |
| 37 | .brightness_get = wndr3700_usb_led_get, |
| 38 | }; |
| 39 | |
| 40 | static int __devinit wndr3700_usb_led_probe(struct platform_device *pdev) |
| 41 | { |
| 42 | return led_classdev_register(&pdev->dev, &wndr3700_usb_led); |
| 43 | } |
| 44 | |
| 45 | static int __devexit wndr3700_usb_led_remove(struct platform_device *pdev) |
| 46 | { |
| 47 | led_classdev_unregister(&wndr3700_usb_led); |
| 48 | return 0; |
| 49 | } |
| 50 | |
| 51 | static struct platform_driver wndr3700_usb_led_driver = { |
| 52 | .probe = wndr3700_usb_led_probe, |
| 53 | .remove = __devexit_p(wndr3700_usb_led_remove), |
| 54 | .driver = { |
| 55 | .name = DRIVER_NAME, |
| 56 | .owner = THIS_MODULE, |
| 57 | }, |
| 58 | }; |
| 59 | |
| 60 | static int __init wndr3700_usb_led_init(void) |
| 61 | { |
| 62 | return platform_driver_register(&wndr3700_usb_led_driver); |
| 63 | } |
| 64 | |
| 65 | static void __exit wndr3700_usb_led_exit(void) |
| 66 | { |
| 67 | platform_driver_unregister(&wndr3700_usb_led_driver); |
| 68 | } |
| 69 | |
| 70 | module_init(wndr3700_usb_led_init); |
| 71 | module_exit(wndr3700_usb_led_exit); |
| 72 | |
| 73 | MODULE_DESCRIPTION("USB LED driver for the NETGEAR WNDR3700"); |
| 74 | MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); |
| 75 | MODULE_LICENSE("GPL v2"); |
| 76 | MODULE_ALIAS("platform:" DRIVER_NAME); |
| 77 | |
