linux/include/uapi/linux/rfkill.h
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   1/*
   2 * Copyright (C) 2006 - 2007 Ivo van Doorn
   3 * Copyright (C) 2007 Dmitry Torokhov
   4 * Copyright 2009 Johannes Berg <johannes@sipsolutions.net>
   5 *
   6 * Permission to use, copy, modify, and/or distribute this software for any
   7 * purpose with or without fee is hereby granted, provided that the above
   8 * copyright notice and this permission notice appear in all copies.
   9 *
  10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17 */
  18#ifndef _UAPI__RFKILL_H
  19#define _UAPI__RFKILL_H
  20
  21
  22#include <linux/types.h>
  23
  24/* define userspace visible states */
  25#define RFKILL_STATE_SOFT_BLOCKED       0
  26#define RFKILL_STATE_UNBLOCKED          1
  27#define RFKILL_STATE_HARD_BLOCKED       2
  28
  29/**
  30 * enum rfkill_type - type of rfkill switch.
  31 *
  32 * @RFKILL_TYPE_ALL: toggles all switches (requests only - not a switch type)
  33 * @RFKILL_TYPE_WLAN: switch is on a 802.11 wireless network device.
  34 * @RFKILL_TYPE_BLUETOOTH: switch is on a bluetooth device.
  35 * @RFKILL_TYPE_UWB: switch is on a ultra wideband device.
  36 * @RFKILL_TYPE_WIMAX: switch is on a WiMAX device.
  37 * @RFKILL_TYPE_WWAN: switch is on a wireless WAN device.
  38 * @RFKILL_TYPE_GPS: switch is on a GPS device.
  39 * @RFKILL_TYPE_FM: switch is on a FM radio device.
  40 * @RFKILL_TYPE_NFC: switch is on an NFC device.
  41 * @NUM_RFKILL_TYPES: number of defined rfkill types
  42 */
  43enum rfkill_type {
  44        RFKILL_TYPE_ALL = 0,
  45        RFKILL_TYPE_WLAN,
  46        RFKILL_TYPE_BLUETOOTH,
  47        RFKILL_TYPE_UWB,
  48        RFKILL_TYPE_WIMAX,
  49        RFKILL_TYPE_WWAN,
  50        RFKILL_TYPE_GPS,
  51        RFKILL_TYPE_FM,
  52        RFKILL_TYPE_NFC,
  53        NUM_RFKILL_TYPES,
  54};
  55
  56/**
  57 * enum rfkill_operation - operation types
  58 * @RFKILL_OP_ADD: a device was added
  59 * @RFKILL_OP_DEL: a device was removed
  60 * @RFKILL_OP_CHANGE: a device's state changed -- userspace changes one device
  61 * @RFKILL_OP_CHANGE_ALL: userspace changes all devices (of a type, or all)
  62 *      into a state, also updating the default state used for devices that
  63 *      are hot-plugged later.
  64 */
  65enum rfkill_operation {
  66        RFKILL_OP_ADD = 0,
  67        RFKILL_OP_DEL,
  68        RFKILL_OP_CHANGE,
  69        RFKILL_OP_CHANGE_ALL,
  70};
  71
  72/**
  73 * struct rfkill_event - events for userspace on /dev/rfkill
  74 * @idx: index of dev rfkill
  75 * @type: type of the rfkill struct
  76 * @op: operation code
  77 * @hard: hard state (0/1)
  78 * @soft: soft state (0/1)
  79 *
  80 * Structure used for userspace communication on /dev/rfkill,
  81 * used for events from the kernel and control to the kernel.
  82 */
  83struct rfkill_event {
  84        __u32 idx;
  85        __u8  type;
  86        __u8  op;
  87        __u8  soft, hard;
  88} __attribute__((packed));
  89
  90/*
  91 * We are planning to be backward and forward compatible with changes
  92 * to the event struct, by adding new, optional, members at the end.
  93 * When reading an event (whether the kernel from userspace or vice
  94 * versa) we need to accept anything that's at least as large as the
  95 * version 1 event size, but might be able to accept other sizes in
  96 * the future.
  97 *
  98 * One exception is the kernel -- we already have two event sizes in
  99 * that we've made the 'hard' member optional since our only option
 100 * is to ignore it anyway.
 101 */
 102#define RFKILL_EVENT_SIZE_V1    8
 103
 104/* ioctl for turning off rfkill-input (if present) */
 105#define RFKILL_IOC_MAGIC        'R'
 106#define RFKILL_IOC_NOINPUT      1
 107#define RFKILL_IOCTL_NOINPUT    _IO(RFKILL_IOC_MAGIC, RFKILL_IOC_NOINPUT)
 108
 109/* and that's all userspace gets */
 110
 111#endif /* _UAPI__RFKILL_H */
 112