/*
   * LEDs driver for the "User LED" on Routerboard532
   *
   * Copyright (C) 2009 Phil Sutter <n0-1@freewrt.org>
   *
   * Based on leds-cobalt-qube.c by Florian Fainelly and
   * rb-diag.c (my own standalone driver for both LED and
   * button of Routerboard532).
   */
  
  #include <linux/leds.h>
  #include <linux/module.h>
  #include <linux/platform_device.h>
  
  #include <asm/mach-rc32434/gpio.h>
  #include <asm/mach-rc32434/rb.h>
  
  static void rb532_led_set(struct led_classdev *cdev,
                            enum led_brightness brightness)
  {
  	if (brightness)
  		set_latch_u5(LO_ULED, 0);
  
  	else
  		set_latch_u5(0, LO_ULED);
  }
  
  static enum led_brightness rb532_led_get(struct led_classdev *cdev)
  {
  	return (get_latch_u5() & LO_ULED) ? LED_FULL : LED_OFF;
  }
  
  static struct led_classdev rb532_uled = {
  	.name = "uled",
  	.brightness_set = rb532_led_set,
  	.brightness_get = rb532_led_get,
  	.default_trigger = "nand-disk",
  };
  
  static int __devinit rb532_led_probe(struct platform_device *pdev)
  {
  	return led_classdev_register(&pdev->dev, &rb532_uled);
  }
  
  static int __devexit rb532_led_remove(struct platform_device *pdev)
  {
  	led_classdev_unregister(&rb532_uled);
  	return 0;
  }
  
  static struct platform_driver rb532_led_driver = {
  	.probe = rb532_led_probe,
  	.remove = __devexit_p(rb532_led_remove),
  	.driver = {
  		.name = "rb532-led",
  		.owner = THIS_MODULE,
  	},
  };

  module_platform_driver(rb532_led_driver);

  
  MODULE_LICENSE("GPL");
  MODULE_DESCRIPTION("User LED support for Routerboard532");
  MODULE_AUTHOR("Phil Sutter <n0-1@freewrt.org>");

  MODULE_ALIAS("platform:rb532-led");