/*
 *************************************************************************
 * Ralink Tech Inc.
 * 5F., No.36, Taiyuan St., Jhubei City,
 * Hsinchu County 302,
 * Taiwan, R.O.C.
 *
 * (c) Copyright 2002-2007, Ralink Technology, Inc.
 *
 * 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.             *
 *                                                                       *
 *************************************************************************
*/

#ifndef __DOT11_BASE_H__
#define __DOT11_BASE_H__

#include "rtmp_type.h"

// 4-byte HTC field.  maybe included in any frame except non-QOS data frame.  The Order bit must set 1.
typedef struct PACKED {
	UINT32 MA:1;		//management action payload exist in (QoS Null+HTC)
	UINT32 TRQ:1;		//sounding request
	UINT32 MRQ:1;		//MCS feedback. Request for a MCS feedback
	UINT32 MRSorASI:3;	// MRQ Sequence identifier. unchanged during entire procedure. 0x000-0x110.
	UINT32 MFS:3;		//SET to the received value of MRS. 0x111 for unsolicited MFB.
	UINT32 MFBorASC:7;	//Link adaptation feedback containing recommended MCS. 0x7f for no feedback or not available
	UINT32 CalPos:2;	// calibration position
	UINT32 CalSeq:2;	//calibration sequence
	UINT32 FBKReq:2;	//feedback request
	UINT32 CSISTEERING:2;	//CSI/ STEERING
	UINT32 ZLFAnnouce:1;	// ZLF announcement
	UINT32 rsv:5;		//calibration sequence
	UINT32 ACConstraint:1;	//feedback request
	UINT32 RDG:1;		//RDG / More PPDU
} HT_CONTROL, *PHT_CONTROL;

// 2-byte QOS CONTROL field
typedef struct PACKED {
	USHORT TID:4;
	USHORT EOSP:1;
	USHORT AckPolicy:2;	//0: normal ACK 1:No ACK 2:scheduled under MTBA/PSMP  3: BA
	USHORT AMsduPresent:1;
	USHORT Txop_QueueSize:8;
} QOS_CONTROL, *PQOS_CONTROL;

// 2-byte Frame control field
typedef struct PACKED {
	USHORT Ver:2;		// Protocol version
	USHORT Type:2;		// MSDU type
	USHORT SubType:4;	// MSDU subtype
	USHORT ToDs:1;		// To DS indication
	USHORT FrDs:1;		// From DS indication
	USHORT MoreFrag:1;	// More fragment bit
	USHORT Retry:1;		// Retry status bit
	USHORT PwrMgmt:1;	// Power management bit
	USHORT MoreData:1;	// More data bit
	USHORT Wep:1;		// Wep data
	USHORT Order:1;		// Strict order expected
} FRAME_CONTROL, *PFRAME_CONTROL;

typedef struct PACKED _HEADER_802_11 {
	FRAME_CONTROL FC;
	USHORT Duration;
	UCHAR Addr1[MAC_ADDR_LEN];
	UCHAR Addr2[MAC_ADDR_LEN];
	UCHAR Addr3[MAC_ADDR_LEN];
	USHORT Frag:4;
	USHORT Sequence:12;
	UCHAR Octet[0];
} HEADER_802_11, *PHEADER_802_11;

typedef struct PACKED _PSPOLL_FRAME {
	FRAME_CONTROL FC;
	USHORT Aid;
	UCHAR Bssid[MAC_ADDR_LEN];
	UCHAR Ta[MAC_ADDR_LEN];
} PSPOLL_FRAME, *PPSPOLL_FRAME;

typedef struct PACKED _RTS_FRAME {
	FRAME_CONTROL FC;
	USHORT Duration;
	UCHAR Addr1[MAC_ADDR_LEN];
	UCHAR Addr2[MAC_ADDR_LEN];
} RTS_FRAME, *PRTS_FRAME;

#endif // __DOT11_BASE_H__ //