release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/staging/rt2860/rtmp_dot11.h

   1 /*
   2  *************************************************************************
   3  * Ralink Tech Inc.
   4  * 5F., No.36, Taiyuan St., Jhubei City,
   5  * Hsinchu County 302,
   6  * Taiwan, R.O.C.
   7  *
   8  * (c) Copyright 2002-2007, Ralink Technology, Inc.
   9  *
  10  * This program is free software; you can redistribute it and/or modify  *
  11  * it under the terms of the GNU General Public License as published by  *
  12  * the Free Software Foundation; either version 2 of the License, or     *
  13  * (at your option) any later version.                                   *
  14  *                                                                       *
  15  * This program is distributed in the hope that it will be useful,       *
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  18  * GNU General Public License for more details.                          *
  19  *                                                                       *
  20  * You should have received a copy of the GNU General Public License     *
  21  * along with this program; if not, write to the                         *
  22  * Free Software Foundation, Inc.,                                       *
  23  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  24  *                                                                       *
  25  *************************************************************************
  26 */
  27
  28 #ifndef __DOT11_BASE_H__
  29 #define __DOT11_BASE_H__
  30
  31 #include "rtmp_type.h"
  32
  33 /* 4-byte HTC field.  maybe included in any frame except non-QOS data frame.  The Order bit must set 1. */
  34 struct PACKED rt_ht_control {
  35         u32 MA:1;               /*management action payload exist in (QoS Null+HTC) */
  36         u32 TRQ:1;              /*sounding request */
  37         u32 MRQ:1;              /*MCS feedback. Request for a MCS feedback */
  38         u32 MRSorASI:3; /* MRQ Sequence identifier. unchanged during entire procedure. 0x000-0x110. */
  39         u32 MFS:3;              /*SET to the received value of MRS. 0x111 for unsolicited MFB. */
  40         u32 MFBorASC:7; /*Link adaptation feedback containing recommended MCS. 0x7f for no feedback or not available */
  41         u32 CalPos:2;   /* calibration position */
  42         u32 CalSeq:2;   /*calibration sequence */
  43         u32 FBKReq:2;   /*feedback request */
  44         u32 CSISTEERING:2;      /*CSI/ STEERING */
  45         u32 ZLFAnnouce:1;       /* ZLF announcement */
  46         u32 rsv:5;              /*calibration sequence */
  47         u32 ACConstraint:1;     /*feedback request */
  48         u32 RDG:1;              /*RDG / More PPDU */
  49 };
  50
  51 /* 2-byte QOS CONTROL field */
  52 struct PACKED rt_qos_control {
  53         u16 TID:4;
  54         u16 EOSP:1;
  55         u16 AckPolicy:2;        /*0: normal ACK 1:No ACK 2:scheduled under MTBA/PSMP  3: BA */
  56         u16 AMsduPresent:1;
  57         u16 Txop_QueueSize:8;
  58 };
  59
  60 /* 2-byte Frame control field */
  61 struct PACKED rt_frame_control {
  62         u16 Ver:2;              /* Protocol version */
  63         u16 Type:2;             /* MSDU type */
  64         u16 SubType:4;  /* MSDU subtype */
  65         u16 ToDs:1;             /* To DS indication */
  66         u16 FrDs:1;             /* From DS indication */
  67         u16 MoreFrag:1; /* More fragment bit */
  68         u16 Retry:1;            /* Retry status bit */
  69         u16 PwrMgmt:1;  /* Power management bit */
  70         u16 MoreData:1; /* More data bit */
  71         u16 Wep:1;              /* Wep data */
  72         u16 Order:1;            /* Strict order expected */
  73 };
  74
  75 struct PACKED rt_header_802_11 {
  76         struct rt_frame_control FC;
  77         u16 Duration;
  78         u8 Addr1[MAC_ADDR_LEN];
  79         u8 Addr2[MAC_ADDR_LEN];
  80         u8 Addr3[MAC_ADDR_LEN];
  81         u16 Frag:4;
  82         u16 Sequence:12;
  83         u8 Octet[0];
  84 };
  85
  86 struct PACKED rt_pspoll_frame {
  87         struct rt_frame_control FC;
  88         u16 Aid;
  89         u8 Bssid[MAC_ADDR_LEN];
  90         u8 Ta[MAC_ADDR_LEN];
  91 };
  92
  93 struct PACKED rt_rts_frame {
  94         struct rt_frame_control FC;
  95         u16 Duration;
  96         u8 Addr1[MAC_ADDR_LEN];
  97         u8 Addr2[MAC_ADDR_LEN];
  98 };
  99
 100 #endif /* __DOT11_BASE_H__ // */