drivers/staging/vt6656/desc.h

   1 /*
   2  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * File: desc.h
  20  *
  21  * Purpose:The header file of descriptor
  22  *
  23  * Revision History:
  24  *
  25  * Author: Tevin Chen
  26  *
  27  * Date: May 21, 1996
  28  *
  29  */
  30
  31 #ifndef __DESC_H__
  32 #define __DESC_H__
  33
  34 #include <linux/types.h>
  35 #include <linux/mm.h>
  36
  37 #include "tether.h"
  38
  39 /* max transmit or receive buffer size */
  40 #define CB_MAX_BUF_SIZE     2900U       /* NOTE: must be multiple of 4 */
  41
  42 /* max TX buffer size */
  43 #define CB_MAX_TX_BUF_SIZE        CB_MAX_BUF_SIZE
  44 /* max RX buffer size when not use Multi-RD */
  45 #define CB_MAX_RX_BUF_SIZE_NORMAL CB_MAX_BUF_SIZE
  46
  47 #define CB_BEACON_BUF_SIZE  512U        /* default beacon buffer size */
  48
  49 #define MAX_TOTAL_SIZE_WITH_ALL_HEADERS CB_MAX_BUF_SIZE
  50
  51 #define MAX_INTERRUPT_SIZE              32
  52
  53 #define RX_BLOCKS           64          /* from 0x60 to 0xA0 */
  54 #define TX_BLOCKS           32          /* from 0xA0 to 0xC0 */
  55
  56 #define CB_MAX_RX_DESC      128         /* max # of descriptors */
  57 #define CB_MIN_RX_DESC      16          /* min # of RX descriptors */
  58 #define CB_MAX_TX_DESC      128         /* max # of descriptors */
  59 #define CB_MIN_TX_DESC      16          /* min # of TX descriptors */
  60
  61 #define CB_RD_NUM           64          /* default # of RD */
  62 #define CB_TD_NUM           64          /* default # of TD */
  63
  64 /*
  65  * bits in the RSR register
  66  */
  67 #define RSR_ADDRBROAD       0x80
  68 #define RSR_ADDRMULTI       0x40
  69 #define RSR_ADDRUNI         0x00
  70 #define RSR_IVLDTYP         0x20        /* invalid packet type */
  71 #define RSR_IVLDLEN         0x10        /* invalid len (> 2312 byte) */
  72 #define RSR_BSSIDOK         0x08
  73 #define RSR_CRCOK           0x04
  74 #define RSR_BCNSSIDOK       0x02
  75 #define RSR_ADDROK          0x01
  76
  77 /*
  78  * bits in the new RSR register
  79  */
  80 #define NEWRSR_DECRYPTOK    0x10
  81 #define NEWRSR_CFPIND       0x08
  82 #define NEWRSR_HWUTSF       0x04
  83 #define NEWRSR_BCNHITAID    0x02
  84 #define NEWRSR_BCNHITAID0   0x01
  85
  86 /*
  87  * bits in the TSR register
  88  */
  89 #define TSR_RETRYTMO        0x08
  90 #define TSR_TMO             0x04
  91 #define TSR_ACKDATA         0x02
  92 #define TSR_VALID           0x01
  93
  94 #define CB_PROTOCOL_RESERVED_SECTION    16
  95
  96 /*
  97  * if retries exceed 15 times, TX will abort, and
  98  * if TX fifo underflow, TX will fail
  99  * we should try to resend it
 100  */
 101 #define CB_MAX_TX_ABORT_RETRY   3
 102
 103 #define FIFOCTL_AUTO_FB_1   0x1000
 104 #define FIFOCTL_AUTO_FB_0   0x0800
 105 #define FIFOCTL_GRPACK      0x0400
 106 #define FIFOCTL_11GA        0x0300
 107 #define FIFOCTL_11GB        0x0200
 108 #define FIFOCTL_11B         0x0100
 109 #define FIFOCTL_11A         0x0000
 110 #define FIFOCTL_RTS         0x0080
 111 #define FIFOCTL_ISDMA0      0x0040
 112 #define FIFOCTL_GENINT      0x0020
 113 #define FIFOCTL_TMOEN       0x0010
 114 #define FIFOCTL_LRETRY      0x0008
 115 #define FIFOCTL_CRCDIS      0x0004
 116 #define FIFOCTL_NEEDACK     0x0002
 117 #define FIFOCTL_LHEAD       0x0001
 118
 119 /* WMAC definition Frag Control */
 120 #define FRAGCTL_AES         0x0300
 121 #define FRAGCTL_TKIP        0x0200
 122 #define FRAGCTL_LEGACY      0x0100
 123 #define FRAGCTL_NONENCRYPT  0x0000
 124 #define FRAGCTL_ENDFRAG     0x0003
 125 #define FRAGCTL_MIDFRAG     0x0002
 126 #define FRAGCTL_STAFRAG     0x0001
 127 #define FRAGCTL_NONFRAG     0x0000
 128
 129 #define TYPE_TXDMA0     0
 130 #define TYPE_AC0DMA     1
 131 #define TYPE_ATIMDMA    2
 132 #define TYPE_SYNCDMA    3
 133 #define TYPE_MAXTD      2
 134
 135 #define TYPE_BEACONDMA  4
 136
 137 #define TYPE_RXDMA0     0
 138 #define TYPE_RXDMA1     1
 139 #define TYPE_MAXRD      2
 140
 141 /* TD_INFO flags control bit */
 142 #define TD_FLAGS_NETIF_SKB 0x01 /* check if need release skb */
 143 #define TD_FLAGS_PRIV_SKB  0x02 /* check if called from private skb(hostap) */
 144 #define TD_FLAGS_PS_RETRY  0x04 /* check if PS STA frame re-transmit */
 145
 146 /*
 147  * TX FIFO header
 148  */
 149 typedef struct tagSTxBufHead {
 150         u32 adwTxKey[4];
 151     u16    wFIFOCtl;
 152     u16    wTimeStamp;
 153     u16    wFragCtl;
 154     u16    wReserved;
 155 } __attribute__ ((__packed__))
 156 STxBufHead, *PSTxBufHead;
 157 typedef const STxBufHead *PCSTxBufHead;
 158
 159 typedef struct tagSTxShortBufHead {
 160     u16    wFIFOCtl;
 161     u16    wTimeStamp;
 162 } __attribute__ ((__packed__))
 163 STxShortBufHead, *PSTxShortBufHead;
 164 typedef const STxShortBufHead *PCSTxShortBufHead;
 165
 166 typedef struct tagSBEACONCtl {
 167         u32 BufReady:1;
 168         u32 TSF:15;
 169         u32 BufLen:11;
 170         u32 Reserved:5;
 171 } __attribute__ ((__packed__))
 172 SBEACONCtl;
 173
 174 typedef struct tagSSecretKey {
 175         u32 dwLowDword;
 176     u8    byHighByte;
 177 } __attribute__ ((__packed__))
 178 SSecretKey;
 179
 180 typedef struct tagSKeyEntry {
 181     u8  abyAddrHi[2];
 182     u16  wKCTL;
 183     u8  abyAddrLo[4];
 184         u32 dwKey0[4];
 185         u32 dwKey1[4];
 186         u32 dwKey2[4];
 187         u32 dwKey3[4];
 188         u32 dwKey4[4];
 189 } __attribute__ ((__packed__))
 190 SKeyEntry;
 191
 192 #endif /* __DESC_H__ */