include/uapi/linux/rfkill.h

   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  */
  43 enum 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  */
  65 enum 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  */
  83 struct 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 */