text: /*-
   * Copyright (c) 2001 Atsushi Onoe
   * Copyright (c) 2002-2005 Sam Leffler, Errno Consulting
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. The name of the author may not be used to endorse or promote products
   *    derived from this software without specific prior written permission.
   *
   * Alternatively, this software may be distributed under the terms of the
   * GNU General Public License ("GPL") version 2 as published by the Free
   * Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * $FreeBSD: src/sys/net80211/_ieee80211.h,v 1.3 2005/08/10 17:42:13 sam Exp $
   */
  #ifndef NETBSD_NET80211__IEEE80211_H
  #define NETBSD_NET80211__IEEE80211_H
  
  enum ieee80211_phytype {
  	IEEE80211_T_DS,			/* direct sequence spread spectrum */
  	IEEE80211_T_FH,			/* frequency hopping */
  	IEEE80211_T_OFDM,		/* frequency division multiplexing */
  	IEEE80211_T_TURBO		/* high rate OFDM, aka turbo mode */
  };
  #define	IEEE80211_T_CCK	IEEE80211_T_DS	/* more common nomenclature */
  
  /* XXX not really a mode; there are really multiple PHY's */
  enum ieee80211_phymode {
  	IEEE80211_MODE_AUTO	= 0,	/* autoselect */
  	IEEE80211_MODE_11A	= 1,	/* 5GHz, OFDM */
  	IEEE80211_MODE_11B	= 2,	/* 2GHz, CCK */
  	IEEE80211_MODE_11G	= 3,	/* 2GHz, OFDM */
  	IEEE80211_MODE_FH	= 4,	/* 2GHz, GFSK */
  	IEEE80211_MODE_TURBO_A	= 5,	/* 5GHz, OFDM, 2x clock */
  	IEEE80211_MODE_TURBO_G	= 6	/* 2GHz, OFDM, 2x clock */
  };
  #define	IEEE80211_MODE_MAX	((int)IEEE80211_MODE_TURBO_G + 1)
  
  enum ieee80211_opmode {
  	IEEE80211_M_STA		= 1,	/* infrastructure station */
  	IEEE80211_M_IBSS 	= 0,	/* IBSS (adhoc) station */
  	IEEE80211_M_AHDEMO	= 3,	/* Old lucent compatible adhoc demo */
  	IEEE80211_M_HOSTAP	= 6,	/* Software Access Point */
  	IEEE80211_M_MONITOR	= 8	/* Monitor mode */
  };
  
  /*
   * 802.11g protection mode.
   */
  enum ieee80211_protmode {
  	IEEE80211_PROT_NONE	= 0,	/* no protection */
  	IEEE80211_PROT_CTSONLY	= 1,	/* CTS to self */
  	IEEE80211_PROT_RTSCTS	= 2	/* RTS-CTS */
  };
  
  /*
   * Authentication mode.
   */
  enum ieee80211_authmode {
  	IEEE80211_AUTH_NONE	= 0,
  	IEEE80211_AUTH_OPEN	= 1,		/* open */
  	IEEE80211_AUTH_SHARED	= 2,		/* shared-key */
  	IEEE80211_AUTH_8021X	= 3,		/* 802.1x */
  	IEEE80211_AUTH_AUTO	= 4,		/* auto-select/accept */
  	/* NB: these are used only for ioctls */
  	IEEE80211_AUTH_WPA	= 5		/* WPA/RSN w/ 802.1x/PSK */
  };
  
  /*
   * Roaming mode is effectively who controls the operation
   * of the 802.11 state machine when operating as a station.
   * State transitions are controlled either by the driver
   * (typically when management frames are processed by the
   * hardware/firmware), the host (auto/normal operation of
   * the 802.11 layer), or explicitly through ioctl requests
   * when applications like wpa_supplicant want control.
   */
  enum ieee80211_roamingmode {
  	IEEE80211_ROAMING_DEVICE= 0,	/* driver/hardware control */
  	IEEE80211_ROAMING_AUTO	= 1,	/* 802.11 layer control */
  	IEEE80211_ROAMING_MANUAL= 2	/* application control */
  };
  
  /*
   * Channels are specified by frequency and attributes.
   */
  struct ieee80211_channel {
  	u_int16_t	ic_freq;	/* setting in MHz */
  	u_int16_t	ic_flags;	/* see below */
  };
  
  #define	IEEE80211_CHAN_MAX	255
  #define	IEEE80211_CHAN_BYTES	32	/* howmany(IEEE80211_CHAN_MAX, NBBY) */
  #define	IEEE80211_CHAN_ANY	0xffff	/* token for ``any channel'' */
  #define	IEEE80211_CHAN_ANYC \
  	((struct ieee80211_channel *) 0x1)
  
  /* bits 0-3 are for private use by drivers */
  /* channel attributes */
  #define	IEEE80211_CHAN_TURBO	0x0010	/* Turbo channel */
  #define	IEEE80211_CHAN_CCK	0x0020	/* CCK channel */
  #define	IEEE80211_CHAN_OFDM	0x0040	/* OFDM channel */
  #define	IEEE80211_CHAN_2GHZ	0x0080	/* 2 GHz spectrum channel. */
  #define	IEEE80211_CHAN_5GHZ	0x0100	/* 5 GHz spectrum channel */
  #define	IEEE80211_CHAN_PASSIVE	0x0200	/* Only passive scan allowed */
  #define	IEEE80211_CHAN_DYN	0x0400	/* Dynamic CCK-OFDM channel */
  #define	IEEE80211_CHAN_GFSK	0x0800	/* GFSK channel (FHSS PHY) */
  #define	IEEE80211_CHAN_GSM	0x1000	/* 900 MHz spectrum channel */
  #define	IEEE80211_CHAN_HALF	0x4000	/* Half rate channel */
  #define	IEEE80211_CHAN_QUARTER	0x8000	/* Quarter rate channel */
  
  /*
   * Useful combinations of channel characteristics.
   */
  #define	IEEE80211_CHAN_FHSS \
  	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_GFSK)
  #define	IEEE80211_CHAN_A \
  	(IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM)
  #define	IEEE80211_CHAN_B \
  	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK)
  #define	IEEE80211_CHAN_PUREG \
  	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM)
  #define	IEEE80211_CHAN_G \
  	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN)
  #define	IEEE80211_CHAN_T \
  	(IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
  #define	IEEE80211_CHAN_108G \
  	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
  
  #define	IEEE80211_CHAN_ALL \
  	(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_GFSK | \
  	 IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_DYN)
  #define	IEEE80211_CHAN_ALLTURBO \
  	(IEEE80211_CHAN_ALL | IEEE80211_CHAN_TURBO)
  
  #define	IEEE80211_IS_CHAN_FHSS(_c) \
  	(((_c)->ic_flags & IEEE80211_CHAN_FHSS) == IEEE80211_CHAN_FHSS)
  #define	IEEE80211_IS_CHAN_A(_c) \
  	(((_c)->ic_flags & IEEE80211_CHAN_A) == IEEE80211_CHAN_A)
  #define	IEEE80211_IS_CHAN_B(_c) \
  	(((_c)->ic_flags & IEEE80211_CHAN_B) == IEEE80211_CHAN_B)
  #define	IEEE80211_IS_CHAN_PUREG(_c) \
  	(((_c)->ic_flags & IEEE80211_CHAN_PUREG) == IEEE80211_CHAN_PUREG)
  #define	IEEE80211_IS_CHAN_G(_c) \
  	(((_c)->ic_flags & IEEE80211_CHAN_G) == IEEE80211_CHAN_G)
  #define	IEEE80211_IS_CHAN_ANYG(_c) \
  	(IEEE80211_IS_CHAN_PUREG(_c) || IEEE80211_IS_CHAN_G(_c))
  #define	IEEE80211_IS_CHAN_T(_c) \
  	(((_c)->ic_flags & IEEE80211_CHAN_T) == IEEE80211_CHAN_T)
  #define	IEEE80211_IS_CHAN_108G(_c) \
  	(((_c)->ic_flags & IEEE80211_CHAN_108G) == IEEE80211_CHAN_108G)
  
  #define	IEEE80211_IS_CHAN_2GHZ(_c) \
  	(((_c)->ic_flags & IEEE80211_CHAN_2GHZ) != 0)
  #define	IEEE80211_IS_CHAN_5GHZ(_c) \
  	(((_c)->ic_flags & IEEE80211_CHAN_5GHZ) != 0)
  #define	IEEE80211_IS_CHAN_OFDM(_c) \
  	(((_c)->ic_flags & IEEE80211_CHAN_OFDM) != 0)
  #define	IEEE80211_IS_CHAN_CCK(_c) \
  	(((_c)->ic_flags & IEEE80211_CHAN_CCK) != 0)
  #define	IEEE80211_IS_CHAN_GFSK(_c) \
  	(((_c)->ic_flags & IEEE80211_CHAN_GFSK) != 0)
  #define	IEEE80211_IS_CHAN_HALF(_c) \
  	(((_c)->ic_flags & IEEE80211_CHAN_HALF) != 0)
  #define	IEEE80211_IS_CHAN_QUARTER(_c) \
  	(((_c)->ic_flags & IEEE80211_CHAN_QUARTER) != 0)
  #define	IEEE80211_IS_CHAN_FULL(_c) \
  	(((_c)->ic_flags & (IEEE80211_CHAN_QUARTER | IEEE80211_CHAN_HALF)) == 0)
  #define	IEEE80211_IS_CHAN_GSM(_c) \
  	(((_c)->ic_flags & IEEE80211_CHAN_GSM) != 0)
  #define	IEEE80211_IS_CHAN_PASSIVE(_c) \
  	(((_c)->ic_flags & IEEE80211_CHAN_PASSIVE) != 0)
  
  
  /* ni_chan encoding for FH phy */
  #define	IEEE80211_FH_CHANMOD	80
  #define	IEEE80211_FH_CHAN(set,pat)	(((set)-1)*IEEE80211_FH_CHANMOD+(pat))
  #define	IEEE80211_FH_CHANSET(chan)	((chan)/IEEE80211_FH_CHANMOD+1)
  #define	IEEE80211_FH_CHANPAT(chan)	((chan)%IEEE80211_FH_CHANMOD)
  
  /*
   * 802.11 rate set.
   */
  #define	IEEE80211_RATE_SIZE	8		/* 802.11 standard */
  #define	IEEE80211_RATE_MAXSIZE	15		/* max rates we'll handle */
  
  struct ieee80211_rateset {
  	u_int8_t		rs_nrates;
  	u_int8_t		rs_rates[IEEE80211_RATE_MAXSIZE];
  };
  
  extern const struct ieee80211_rateset ieee80211_std_rateset_11a;
  extern const struct ieee80211_rateset ieee80211_std_rateset_11b;
  extern const struct ieee80211_rateset ieee80211_std_rateset_11g;
  
  #endif /* !_NET80211__IEEE80211_H_ */
  