76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
/*
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* LED driver for RDC3211 boards
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*
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* Copyright 2007 Florian Fainelli <florian@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/leds.h>
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#include <linux/err.h>
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#include <asm/gpio.h>
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/* This is just for testing purpose */
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int gpio;
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module_param(gpio, int, 0444);
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MODULE_PARM_DESC(gpio, " GPIO line");
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static void rdc321x_led_set(struct led_classdev *led_cdev, enum led_brightness brightness)
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{
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gpio_set_value(gpio, brightness ? 1 : 0);
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}
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/* The DMZ led is at GPIO line 1 */
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static struct led_classdev rdc321x_dmz_led = {
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.name = "rdc321x:dmz",
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.brightness_set = rdc321x_led_set,
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};
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static int rdc321x_leds_probe(struct platform_device *pdev)
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{
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return led_classdev_register(&pdev->dev, &rdc321x_dmz_led);
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}
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static int rdc321x_leds_remove(struct platform_device *pdev)
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{
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led_classdev_unregister(&rdc321x_dmz_led);
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return 0;
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}
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static struct platform_driver rdc321x_leds_driver = {
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.probe = rdc321x_leds_probe,
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.remove = rdc321x_leds_remove,
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.driver = {
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.name = "rdc321x-leds",
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.owner = THIS_MODULE,
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}
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};
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static int __init rdc321x_leds_init(void)
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{
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int ret;
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ret = platform_driver_register(&rdc321x_leds_driver);
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return ret;
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}
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static void __exit rdc321x_leds_exit(void)
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{
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platform_driver_unregister(&rdc321x_leds_driver);
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}
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module_init(rdc321x_leds_init);
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module_exit(rdc321x_leds_exit);
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MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
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MODULE_DESCRIPTION("RDC321x LED driver");
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MODULE_LICENSE("GPL");
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