[NET]: rfkill: add support for input key to control wireless radio

#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 {

	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 */

endmenu

source "net/rfkill/Kconfig"

endif   # if NET

endmenu # Networking

obj-$(CONFIG_TIPC)		+= tipc/

obj-$(CONFIG_NETLABEL)		+= netlabel/

obj-$(CONFIG_IUCV)		+= iucv/

obj-$(CONFIG_RFKILL)		+= rfkill/

ifeq ($(CONFIG_NET),y)

obj-$(CONFIG_SYSCTL)		+= sysctl_net.o

#

# RF switch subsystem configuration

#

menuconfig RFKILL

	tristate "RF switch subsystem support"

	help

	  Say Y here if you want to have control over RF switches

	  found on many WiFi, Bluetooth and IRDA cards.

	  To compile this driver as a module, choose M here: the

	  module will be called rfkill.

config RFKILL_INPUT

	tristate "Input layer to RF switch connector"

	depends on RFKILL && INPUT

	help

	  Say Y here if you want kernel automatically toggle state

	  of RF switches on and off when user presses appropriate

	  button or a key on the keyboard. Without this module you

	  need a some kind of userspace application to control

	  state of the switches.

	  To compile this driver as a module, choose M here: the

	  module will be called rfkill-input.

#

# Makefile for the RF switch subsystem.

#

obj-$(CONFIG_RFKILL)			+= rfkill.o

obj-$(CONFIG_RFKILL_INPUT)		+= rfkill-input.o