mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-31 00:17:44 +00:00
20405c0841
Buttons that work directly on hardware cannot support the "user_claim" functionality. Add a flag to signal this and return -EOPNOTSUPP in this case. b43 is such a device. Signed-off-by: Michael Buesch <mb@bu3sch.de> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
111 lines
3.3 KiB
C
111 lines
3.3 KiB
C
#ifndef __RFKILL_H
|
|
#define __RFKILL_H
|
|
|
|
/*
|
|
* Copyright (C) 2006 - 2007 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>
|
|
#include <linux/leds.h>
|
|
|
|
/**
|
|
* enum rfkill_type - type of rfkill switch.
|
|
* RFKILL_TYPE_WLAN: switch is on a 802.11 wireless network device.
|
|
* RFKILL_TYPE_BLUETOOTH: switch is on a bluetooth device.
|
|
* RFKILL_TYPE_UWB: switch is on a ultra wideband device.
|
|
*/
|
|
enum rfkill_type {
|
|
RFKILL_TYPE_WLAN ,
|
|
RFKILL_TYPE_BLUETOOTH,
|
|
RFKILL_TYPE_UWB,
|
|
RFKILL_TYPE_MAX,
|
|
};
|
|
|
|
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_unsupported: Whether the hardware supports exclusive
|
|
* RF-kill control by userspace. Set this before registering.
|
|
* @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.
|
|
* @led_trigger: A LED trigger for this button's LED.
|
|
* @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_unsupported;
|
|
bool user_claim;
|
|
|
|
struct mutex mutex;
|
|
|
|
void *data;
|
|
int (*toggle_radio)(void *data, enum rfkill_state state);
|
|
|
|
#ifdef CONFIG_RFKILL_LEDS
|
|
struct led_trigger led_trigger;
|
|
#endif
|
|
|
|
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);
|
|
|
|
/**
|
|
* rfkill_get_led_name - Get the LED trigger name for the button's LED.
|
|
* This function might return a NULL pointer if registering of the
|
|
* LED trigger failed.
|
|
* Use this as "default_trigger" for the LED.
|
|
*/
|
|
static inline char *rfkill_get_led_name(struct rfkill *rfkill)
|
|
{
|
|
#ifdef CONFIG_RFKILL_LEDS
|
|
return (char *)(rfkill->led_trigger.name);
|
|
#else
|
|
return NULL;
|
|
#endif
|
|
}
|
|
|
|
#endif /* RFKILL_H */
|