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77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/*
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* USB LED driver for the NETGEAR WNDR3700
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*
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* Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <linux/leds.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <asm/mach-ath79/ar71xx_regs.h>
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#include <asm/mach-ath79/ath79.h>
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#define DRIVER_NAME "wndr3700-led-usb"
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static void wndr3700_usb_led_set(struct led_classdev *cdev,
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enum led_brightness brightness)
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{
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if (brightness)
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ath79_device_reset_clear(AR71XX_RESET_GE1_PHY);
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else
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ath79_device_reset_set(AR71XX_RESET_GE1_PHY);
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}
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static enum led_brightness wndr3700_usb_led_get(struct led_classdev *cdev)
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{
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return ath79_device_reset_get(AR71XX_RESET_GE1_PHY) ? LED_OFF : LED_FULL;
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}
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static struct led_classdev wndr3700_usb_led = {
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.name = "netgear:green:usb",
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.brightness_set = wndr3700_usb_led_set,
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.brightness_get = wndr3700_usb_led_get,
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};
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static int wndr3700_usb_led_probe(struct platform_device *pdev)
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{
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return led_classdev_register(&pdev->dev, &wndr3700_usb_led);
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}
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static int wndr3700_usb_led_remove(struct platform_device *pdev)
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{
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led_classdev_unregister(&wndr3700_usb_led);
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return 0;
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}
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static struct platform_driver wndr3700_usb_led_driver = {
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.probe = wndr3700_usb_led_probe,
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.remove = wndr3700_usb_led_remove,
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.driver = {
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.name = DRIVER_NAME,
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.owner = THIS_MODULE,
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},
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};
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static int __init wndr3700_usb_led_init(void)
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{
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return platform_driver_register(&wndr3700_usb_led_driver);
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}
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static void __exit wndr3700_usb_led_exit(void)
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{
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platform_driver_unregister(&wndr3700_usb_led_driver);
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}
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module_init(wndr3700_usb_led_init);
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module_exit(wndr3700_usb_led_exit);
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MODULE_DESCRIPTION("USB LED driver for the NETGEAR WNDR3700");
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MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:" DRIVER_NAME);
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