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. */ 34struct 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 */ 52struct 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 */ 61struct 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 75struct 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 86struct 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 93struct 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__ // */ 101