#ifndef __RFKILL_H
  #define __RFKILL_H
  
  /*
   * Copyright (C) 2006 Ivo van Doorn
   * Copyright (C) 2007 Dmitry Torokhov
   *
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; either version 2 of the License, or
   * (at your option) any later version.
   *
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the
   * Free Software Foundation, Inc.,
   * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
   */
  
  #include <linux/types.h>
  #include <linux/kernel.h>
  #include <linux/list.h>
  #include <linux/mutex.h>
  #include <linux/device.h>
  
  /**
   * enum rfkill_type - type of rfkill switch.
   * RFKILL_TYPE_WLAN: switch is no a Wireless network devices.
   * RFKILL_TYPE_BlUETOOTH: switch is on a bluetooth device.
   * RFKILL_TYPE_IRDA: switch is on an infrared devices.
   */
  enum rfkill_type {
  	RFKILL_TYPE_WLAN = 0,
  	RFKILL_TYPE_BLUETOOTH = 1,
  	RFKILL_TYPE_IRDA = 2,
  	RFKILL_TYPE_MAX = 3,
  };
  
  enum rfkill_state {
  	RFKILL_STATE_OFF	= 0,
  	RFKILL_STATE_ON		= 1,
  };
  
  /**
   * struct rfkill - rfkill control structure.
   * @name: Name of the switch.
   * @type: Radio type which the button controls, the value stored
   *	here should be a value from enum rfkill_type.
   * @state: State of the switch (on/off).
   * @user_claim: Set when the switch is controlled exlusively by userspace.
   * @mutex: Guards switch state transitions
   * @data: Pointer to the RF button drivers private data which will be
   *	passed along when toggling radio state.
   * @toggle_radio(): Mandatory handler to control state of the radio.
   * @dev: Device structure integrating the switch into device tree.
   * @node: Used to place switch into list of all switches known to the
   *	the system.
   *
   * This structure represents a RF switch located on a network device.
   */
  struct rfkill {

  	const char *name;

  	enum rfkill_type type;
  
  	enum rfkill_state state;
  	bool user_claim;
  
  	struct mutex mutex;
  
  	void *data;
  	int (*toggle_radio)(void *data, enum rfkill_state state);
  
  	struct device dev;
  	struct list_head node;
  };
  #define to_rfkill(d)	container_of(d, struct rfkill, dev)
  
  struct rfkill *rfkill_allocate(struct device *parent, enum rfkill_type type);
  void rfkill_free(struct rfkill *rfkill);
  int rfkill_register(struct rfkill *rfkill);
  void rfkill_unregister(struct rfkill *rfkill);
  
  void rfkill_switch_all(enum rfkill_type type, enum rfkill_state state);
  
  #endif /* RFKILL_H */