drivers/staging/vt6655/rxtx.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
   4  * All rights reserved.
   5  *
   6  * File: rxtx.c
   7  *
   8  * Purpose: handle WMAC/802.3/802.11 rx & tx functions
   9  *
  10  * Author: Lyndon Chen
  11  *
  12  * Date: May 20, 2003
  13  *
  14  * Functions:
  15  *      s_vGenerateTxParameter - Generate tx dma required parameter.
  16  *      vGenerateMACHeader - Translate 802.3 to 802.11 header
  17  *      cbGetFragCount - Calculate fragment number count
  18  *      csBeacon_xmit - beacon tx function
  19  *      csMgmt_xmit - management tx function
  20  *      s_cbFillTxBufHead - fulfill tx dma buffer header
  21  *      s_uGetDataDuration - get tx data required duration
  22  *      s_uFillDataHead- fulfill tx data duration header
  23  *      s_uGetRTSCTSDuration- get rtx/cts required duration
  24  *      s_uGetRTSCTSRsvTime- get rts/cts reserved time
  25  *      s_uGetTxRsvTime- get frame reserved time
  26  *      s_vFillCTSHead- fulfill CTS ctl header
  27  *      s_vFillFragParameter- Set fragment ctl parameter.
  28  *      s_vFillRTSHead- fulfill RTS ctl header
  29  *      s_vFillTxKey- fulfill tx encrypt key
  30  *      s_vSWencryption- Software encrypt header
  31  *      vDMA0_tx_80211- tx 802.11 frame via dma0
  32  *      vGenerateFIFOHeader- Generate tx FIFO ctl header
  33  *
  34  * Revision History:
  35  *
  36  */
  37
  38 #include "device.h"
  39 #include "rxtx.h"
  40 #include "card.h"
  41 #include "mac.h"
  42 #include "baseband.h"
  43 #include "rf.h"
  44
  45 /*---------------------  Static Definitions -------------------------*/
  46
  47 /*---------------------  Static Classes  ----------------------------*/
  48
  49 /*---------------------  Static Variables  --------------------------*/
  50
  51 /*---------------------  Static Functions  --------------------------*/
  52
  53 /*---------------------  Static Definitions -------------------------*/
  54 /* if packet size < 256 -> in-direct send
  55  * vpacket size >= 256 -> direct send
  56  */
  57 #define CRITICAL_PACKET_LEN      256
  58
  59 static const unsigned short wTimeStampOff[2][MAX_RATE] = {
  60         {384, 288, 226, 209, 54, 43, 37, 31, 28, 25, 24, 23}, /* Long Preamble */
  61         {384, 192, 130, 113, 54, 43, 37, 31, 28, 25, 24, 23}, /* Short Preamble */
  62 };
  63
  64 static const unsigned short wFB_Opt0[2][5] = {
  65         {RATE_12M, RATE_18M, RATE_24M, RATE_36M, RATE_48M}, /* fallback_rate0 */
  66         {RATE_12M, RATE_12M, RATE_18M, RATE_24M, RATE_36M}, /* fallback_rate1 */
  67 };
  68
  69 static const unsigned short wFB_Opt1[2][5] = {
  70         {RATE_12M, RATE_18M, RATE_24M, RATE_24M, RATE_36M}, /* fallback_rate0 */
  71         {RATE_6M,  RATE_6M,  RATE_12M, RATE_12M, RATE_18M}, /* fallback_rate1 */
  72 };
  73
  74 #define RTSDUR_BB       0
  75 #define RTSDUR_BA       1
  76 #define RTSDUR_AA       2
  77 #define CTSDUR_BA       3
  78 #define RTSDUR_BA_F0    4
  79 #define RTSDUR_AA_F0    5
  80 #define RTSDUR_BA_F1    6
  81 #define RTSDUR_AA_F1    7
  82 #define CTSDUR_BA_F0    8
  83 #define CTSDUR_BA_F1    9
  84 #define DATADUR_B       10
  85 #define DATADUR_A       11
  86 #define DATADUR_A_F0    12
  87 #define DATADUR_A_F1    13
  88
  89 /*---------------------  Static Functions  --------------------------*/
  90 static
  91 void
  92 s_vFillRTSHead(
  93         struct vnt_private *pDevice,
  94         unsigned char byPktType,
  95         void *pvRTS,
  96         unsigned int    cbFrameLength,
  97         bool bNeedAck,
  98         bool bDisCRC,
  99         struct ieee80211_hdr *hdr,
 100         unsigned short wCurrentRate,
 101         unsigned char byFBOption
 102 );
 103
 104 static
 105 void
 106 s_vGenerateTxParameter(
 107         struct vnt_private *pDevice,
 108         unsigned char byPktType,
 109         struct vnt_tx_fifo_head *,
 110         void *pvRrvTime,
 111         void *pvRTS,
 112         void *pvCTS,
 113         unsigned int    cbFrameSize,
 114         bool bNeedACK,
 115         unsigned int    uDMAIdx,
 116         void *psEthHeader,
 117         unsigned short wCurrentRate
 118 );
 119
 120 static unsigned int
 121 s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
 122                   unsigned char *pbyTxBufferAddr,
 123                   unsigned int uDMAIdx, struct vnt_tx_desc *pHeadTD,
 124                   unsigned int uNodeIndex);
 125
 126 static
 127 __le16
 128 s_uFillDataHead(
 129         struct vnt_private *pDevice,
 130         unsigned char byPktType,
 131         void *pTxDataHead,
 132         unsigned int cbFrameLength,
 133         unsigned int uDMAIdx,
 134         bool bNeedAck,
 135         unsigned int uFragIdx,
 136         unsigned int cbLastFragmentSize,
 137         unsigned int uMACfragNum,
 138         unsigned char byFBOption,
 139         unsigned short wCurrentRate,
 140         bool is_pspoll
 141 );
 142
 143 /*---------------------  Export Variables  --------------------------*/
 144
 145 static __le16 vnt_time_stamp_off(struct vnt_private *priv, u16 rate)
 146 {
 147         return cpu_to_le16(wTimeStampOff[priv->byPreambleType % 2]
 148                                                         [rate % MAX_RATE]);
 149 }
 150
 151 /* byPktType : PK_TYPE_11A     0
 152  * PK_TYPE_11B     1
 153  * PK_TYPE_11GB    2
 154  * PK_TYPE_11GA    3
 155  */
 156 static
 157 unsigned int
 158 s_uGetTxRsvTime(
 159         struct vnt_private *pDevice,
 160         unsigned char byPktType,
 161         unsigned int cbFrameLength,
 162         unsigned short wRate,
 163         bool bNeedAck
 164 )
 165 {
 166         unsigned int uDataTime, uAckTime;
 167
 168         uDataTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, cbFrameLength, wRate);
 169         if (byPktType == PK_TYPE_11B) /* llb,CCK mode */
 170                 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, (unsigned short)pDevice->byTopCCKBasicRate);
 171         else /* 11g 2.4G OFDM mode & 11a 5G OFDM mode */
 172                 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, (unsigned short)pDevice->byTopOFDMBasicRate);
 173
 174         if (bNeedAck)
 175                 return uDataTime + pDevice->uSIFS + uAckTime;
 176         else
 177                 return uDataTime;
 178 }
 179
 180 static __le16 vnt_rxtx_rsvtime_le16(struct vnt_private *priv, u8 pkt_type,
 181                                     u32 frame_length, u16 rate, bool need_ack)
 182 {
 183         return cpu_to_le16((u16)s_uGetTxRsvTime(priv, pkt_type,
 184                                                 frame_length, rate, need_ack));
 185 }
 186
 187 /* byFreqType: 0=>5GHZ 1=>2.4GHZ */
 188 static
 189 __le16
 190 s_uGetRTSCTSRsvTime(
 191         struct vnt_private *pDevice,
 192         unsigned char byRTSRsvType,
 193         unsigned char byPktType,
 194         unsigned int cbFrameLength,
 195         unsigned short wCurrentRate
 196 )
 197 {
 198         unsigned int uRrvTime, uRTSTime, uCTSTime, uAckTime, uDataTime;
 199
 200         uRrvTime = uRTSTime = uCTSTime = uAckTime = uDataTime = 0;
 201
 202         uDataTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, cbFrameLength, wCurrentRate);
 203         if (byRTSRsvType == 0) { /* RTSTxRrvTime_bb */
 204                 uRTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 20, pDevice->byTopCCKBasicRate);
 205                 uCTSTime = uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 206         } else if (byRTSRsvType == 1) { /* RTSTxRrvTime_ba, only in 2.4GHZ */
 207                 uRTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 20, pDevice->byTopCCKBasicRate);
 208                 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 209                 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 210         } else if (byRTSRsvType == 2) { /* RTSTxRrvTime_aa */
 211                 uRTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 20, pDevice->byTopOFDMBasicRate);
 212                 uCTSTime = uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 213         } else if (byRTSRsvType == 3) { /* CTSTxRrvTime_ba, only in 2.4GHZ */
 214                 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 215                 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 216                 uRrvTime = uCTSTime + uAckTime + uDataTime + 2 * pDevice->uSIFS;
 217                 return cpu_to_le16((u16)uRrvTime);
 218         }
 219
 220         /* RTSRrvTime */
 221         uRrvTime = uRTSTime + uCTSTime + uAckTime + uDataTime + 3 * pDevice->uSIFS;
 222         return cpu_to_le16((u16)uRrvTime);
 223 }
 224
 225 /* byFreqType 0: 5GHz, 1:2.4Ghz */
 226 static
 227 unsigned int
 228 s_uGetDataDuration(
 229         struct vnt_private *pDevice,
 230         unsigned char byDurType,
 231         unsigned int cbFrameLength,
 232         unsigned char byPktType,
 233         unsigned short wRate,
 234         bool bNeedAck,
 235         unsigned int uFragIdx,
 236         unsigned int cbLastFragmentSize,
 237         unsigned int uMACfragNum,
 238         unsigned char byFBOption
 239 )
 240 {
 241         bool bLastFrag = false;
 242         unsigned int uAckTime = 0, uNextPktTime = 0;
 243
 244         if (uFragIdx == (uMACfragNum - 1))
 245                 bLastFrag = true;
 246
 247         switch (byDurType) {
 248         case DATADUR_B:    /* DATADUR_B */
 249                 if (((uMACfragNum == 1)) || bLastFrag) {/* Non Frag or Last Frag */
 250                         if (bNeedAck) {
 251                                 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 252                                 return pDevice->uSIFS + uAckTime;
 253                         } else {
 254                                 return 0;
 255                         }
 256                 } else {/* First Frag or Mid Frag */
 257                         if (uFragIdx == (uMACfragNum - 2))
 258                                 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wRate, bNeedAck);
 259                         else
 260                                 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
 261
 262                         if (bNeedAck) {
 263                                 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 264                                 return pDevice->uSIFS + uAckTime + uNextPktTime;
 265                         } else {
 266                                 return pDevice->uSIFS + uNextPktTime;
 267                         }
 268                 }
 269                 break;
 270
 271         case DATADUR_A:    /* DATADUR_A */
 272                 if (((uMACfragNum == 1)) || bLastFrag) {/* Non Frag or Last Frag */
 273                         if (bNeedAck) {
 274                                 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 275                                 return pDevice->uSIFS + uAckTime;
 276                         } else {
 277                                 return 0;
 278                         }
 279                 } else {/* First Frag or Mid Frag */
 280                         if (uFragIdx == (uMACfragNum - 2))
 281                                 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wRate, bNeedAck);
 282                         else
 283                                 uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
 284
 285                         if (bNeedAck) {
 286                                 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 287                                 return pDevice->uSIFS + uAckTime + uNextPktTime;
 288                         } else {
 289                                 return pDevice->uSIFS + uNextPktTime;
 290                         }
 291                 }
 292                 break;
 293
 294         case DATADUR_A_F0:    /* DATADUR_A_F0 */
 295                 if (((uMACfragNum == 1)) || bLastFrag) {/* Non Frag or Last Frag */
 296                         if (bNeedAck) {
 297                                 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 298                                 return pDevice->uSIFS + uAckTime;
 299                         } else {
 300                                 return 0;
 301                         }
 302                 } else { /* First Frag or Mid Frag */
 303                         if (byFBOption == AUTO_FB_0) {
 304                                 if (wRate < RATE_18M)
 305                                         wRate = RATE_18M;
 306                                 else if (wRate > RATE_54M)
 307                                         wRate = RATE_54M;
 308
 309                                 if (uFragIdx == (uMACfragNum - 2))
 310                                         uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
 311                                 else
 312                                         uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
 313
 314                         } else { /* (byFBOption == AUTO_FB_1) */
 315                                 if (wRate < RATE_18M)
 316                                         wRate = RATE_18M;
 317                                 else if (wRate > RATE_54M)
 318                                         wRate = RATE_54M;
 319
 320                                 if (uFragIdx == (uMACfragNum - 2))
 321                                         uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
 322                                 else
 323                                         uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
 324                         }
 325
 326                         if (bNeedAck) {
 327                                 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 328                                 return pDevice->uSIFS + uAckTime + uNextPktTime;
 329                         } else {
 330                                 return pDevice->uSIFS + uNextPktTime;
 331                         }
 332                 }
 333                 break;
 334
 335         case DATADUR_A_F1:    /* DATADUR_A_F1 */
 336                 if (((uMACfragNum == 1)) || bLastFrag) { /* Non Frag or Last Frag */
 337                         if (bNeedAck) {
 338                                 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 339                                 return pDevice->uSIFS + uAckTime;
 340                         } else {
 341                                 return 0;
 342                         }
 343                 } else { /* First Frag or Mid Frag */
 344                         if (byFBOption == AUTO_FB_0) {
 345                                 if (wRate < RATE_18M)
 346                                         wRate = RATE_18M;
 347                                 else if (wRate > RATE_54M)
 348                                         wRate = RATE_54M;
 349
 350                                 if (uFragIdx == (uMACfragNum - 2))
 351                                         uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
 352                                 else
 353                                         uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
 354
 355                         } else { /* (byFBOption == AUTO_FB_1) */
 356                                 if (wRate < RATE_18M)
 357                                         wRate = RATE_18M;
 358                                 else if (wRate > RATE_54M)
 359                                         wRate = RATE_54M;
 360
 361                                 if (uFragIdx == (uMACfragNum - 2))
 362                                         uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbLastFragmentSize, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
 363                                 else
 364                                         uNextPktTime = s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
 365                         }
 366                         if (bNeedAck) {
 367                                 uAckTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 368                                 return pDevice->uSIFS + uAckTime + uNextPktTime;
 369                         } else {
 370                                 return pDevice->uSIFS + uNextPktTime;
 371                         }
 372                 }
 373                 break;
 374
 375         default:
 376                 break;
 377         }
 378
 379         return 0;
 380 }
 381
 382 /* byFreqType: 0=>5GHZ 1=>2.4GHZ */
 383 static
 384 __le16
 385 s_uGetRTSCTSDuration(
 386         struct vnt_private *pDevice,
 387         unsigned char byDurType,
 388         unsigned int cbFrameLength,
 389         unsigned char byPktType,
 390         unsigned short wRate,
 391         bool bNeedAck,
 392         unsigned char byFBOption
 393 )
 394 {
 395         unsigned int uCTSTime = 0, uDurTime = 0;
 396
 397         switch (byDurType) {
 398         case RTSDUR_BB:    /* RTSDuration_bb */
 399                 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 400                 uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
 401                 break;
 402
 403         case RTSDUR_BA:    /* RTSDuration_ba */
 404                 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 405                 uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
 406                 break;
 407
 408         case RTSDUR_AA:    /* RTSDuration_aa */
 409                 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 410                 uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
 411                 break;
 412
 413         case CTSDUR_BA:    /* CTSDuration_ba */
 414                 uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
 415                 break;
 416
 417         case RTSDUR_BA_F0: /* RTSDuration_ba_f0 */
 418                 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 419                 if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 420                         uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
 421                 else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 422                         uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
 423
 424                 break;
 425
 426         case RTSDUR_AA_F0: /* RTSDuration_aa_f0 */
 427                 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 428                 if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 429                         uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
 430                 else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 431                         uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
 432
 433                 break;
 434
 435         case RTSDUR_BA_F1: /* RTSDuration_ba_f1 */
 436                 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 437                 if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 438                         uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
 439                 else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 440                         uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
 441
 442                 break;
 443
 444         case RTSDUR_AA_F1: /* RTSDuration_aa_f1 */
 445                 uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 446                 if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 447                         uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
 448                 else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 449                         uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
 450
 451                 break;
 452
 453         case CTSDUR_BA_F0: /* CTSDuration_ba_f0 */
 454                 if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 455                         uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
 456                 else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 457                         uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
 458
 459                 break;
 460
 461         case CTSDUR_BA_F1: /* CTSDuration_ba_f1 */
 462                 if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 463                         uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
 464                 else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <= RATE_54M))
 465                         uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
 466
 467                 break;
 468
 469         default:
 470                 break;
 471         }
 472
 473         return cpu_to_le16((u16)uDurTime);
 474 }
 475
 476 static
 477 __le16
 478 s_uFillDataHead(
 479         struct vnt_private *pDevice,
 480         unsigned char byPktType,
 481         void *pTxDataHead,
 482         unsigned int cbFrameLength,
 483         unsigned int uDMAIdx,
 484         bool bNeedAck,
 485         unsigned int uFragIdx,
 486         unsigned int cbLastFragmentSize,
 487         unsigned int uMACfragNum,
 488         unsigned char byFBOption,
 489         unsigned short wCurrentRate,
 490         bool is_pspoll
 491 )
 492 {
 493         if (!pTxDataHead)
 494                 return 0;
 495
 496         if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
 497                 if (byFBOption == AUTO_FB_NONE) {
 498                         struct vnt_tx_datahead_g *buf = pTxDataHead;
 499                         /* Get SignalField, ServiceField & Length */
 500                         vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
 501                                           byPktType, &buf->a);
 502
 503                         vnt_get_phy_field(pDevice, cbFrameLength,
 504                                           pDevice->byTopCCKBasicRate,
 505                                           PK_TYPE_11B, &buf->b);
 506
 507                         if (is_pspoll) {
 508                                 __le16 dur = cpu_to_le16(pDevice->current_aid | BIT(14) | BIT(15));
 509
 510                                 buf->duration_a = dur;
 511                                 buf->duration_b = dur;
 512                         } else {
 513                                 /* Get Duration and TimeStamp */
 514                                 buf->duration_a =
 515                                         cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A, cbFrameLength,
 516                                                                             byPktType, wCurrentRate, bNeedAck, uFragIdx,
 517                                                                             cbLastFragmentSize, uMACfragNum,
 518                                                                             byFBOption));
 519                                 buf->duration_b =
 520                                         cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_B, cbFrameLength,
 521                                                                             PK_TYPE_11B, pDevice->byTopCCKBasicRate,
 522                                                                             bNeedAck, uFragIdx, cbLastFragmentSize,
 523                                                                             uMACfragNum, byFBOption));
 524                         }
 525
 526                         buf->time_stamp_off_a = vnt_time_stamp_off(pDevice, wCurrentRate);
 527                         buf->time_stamp_off_b = vnt_time_stamp_off(pDevice, pDevice->byTopCCKBasicRate);
 528
 529                         return buf->duration_a;
 530                 } else {
 531                         /* Auto Fallback */
 532                         struct vnt_tx_datahead_g_fb *buf = pTxDataHead;
 533                         /* Get SignalField, ServiceField & Length */
 534                         vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
 535                                           byPktType, &buf->a);
 536
 537                         vnt_get_phy_field(pDevice, cbFrameLength,
 538                                           pDevice->byTopCCKBasicRate,
 539                                           PK_TYPE_11B, &buf->b);
 540                         /* Get Duration and TimeStamp */
 541                         buf->duration_a = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A, cbFrameLength, byPktType,
 542                                                                               wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
 543                         buf->duration_b = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_B, cbFrameLength, PK_TYPE_11B,
 544                                                                                pDevice->byTopCCKBasicRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
 545                         buf->duration_a_f0 = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A_F0, cbFrameLength, byPktType,
 546                                                                                   wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
 547                         buf->duration_a_f1 = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A_F1, cbFrameLength, byPktType,
 548                                                                                  wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
 549
 550                         buf->time_stamp_off_a = vnt_time_stamp_off(pDevice, wCurrentRate);
 551                         buf->time_stamp_off_b = vnt_time_stamp_off(pDevice, pDevice->byTopCCKBasicRate);
 552
 553                         return buf->duration_a;
 554                 } /* if (byFBOption == AUTO_FB_NONE) */
 555         } else if (byPktType == PK_TYPE_11A) {
 556                 if (byFBOption != AUTO_FB_NONE) {
 557                         /* Auto Fallback */
 558                         struct vnt_tx_datahead_a_fb *buf = pTxDataHead;
 559                         /* Get SignalField, ServiceField & Length */
 560                         vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
 561                                           byPktType, &buf->a);
 562
 563                         /* Get Duration and TimeStampOff */
 564                         buf->duration = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A, cbFrameLength, byPktType,
 565                                                                             wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
 566                         buf->duration_f0 = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A_F0, cbFrameLength, byPktType,
 567                                                                                wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
 568                         buf->duration_f1 = cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A_F1, cbFrameLength, byPktType,
 569                                                                                 wCurrentRate, bNeedAck, uFragIdx, cbLastFragmentSize, uMACfragNum, byFBOption));
 570                         buf->time_stamp_off = vnt_time_stamp_off(pDevice, wCurrentRate);
 571                         return buf->duration;
 572                 } else {
 573                         struct vnt_tx_datahead_ab *buf = pTxDataHead;
 574                         /* Get SignalField, ServiceField & Length */
 575                         vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
 576                                           byPktType, &buf->ab);
 577
 578                         if (is_pspoll) {
 579                                 __le16 dur = cpu_to_le16(pDevice->current_aid | BIT(14) | BIT(15));
 580
 581                                 buf->duration = dur;
 582                         } else {
 583                                 /* Get Duration and TimeStampOff */
 584                                 buf->duration =
 585                                         cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_A, cbFrameLength, byPktType,
 586                                                                             wCurrentRate, bNeedAck, uFragIdx,
 587                                                                             cbLastFragmentSize, uMACfragNum,
 588                                                                             byFBOption));
 589                         }
 590
 591                         buf->time_stamp_off = vnt_time_stamp_off(pDevice, wCurrentRate);
 592                         return buf->duration;
 593                 }
 594         } else {
 595                 struct vnt_tx_datahead_ab *buf = pTxDataHead;
 596                 /* Get SignalField, ServiceField & Length */
 597                 vnt_get_phy_field(pDevice, cbFrameLength, wCurrentRate,
 598                                   byPktType, &buf->ab);
 599
 600                 if (is_pspoll) {
 601                         __le16 dur = cpu_to_le16(pDevice->current_aid | BIT(14) | BIT(15));
 602
 603                         buf->duration = dur;
 604                 } else {
 605                         /* Get Duration and TimeStampOff */
 606                         buf->duration =
 607                                 cpu_to_le16((u16)s_uGetDataDuration(pDevice, DATADUR_B, cbFrameLength, byPktType,
 608                                                                     wCurrentRate, bNeedAck, uFragIdx,
 609                                                                     cbLastFragmentSize, uMACfragNum,
 610                                                                     byFBOption));
 611                 }
 612
 613                 buf->time_stamp_off = vnt_time_stamp_off(pDevice, wCurrentRate);
 614                 return buf->duration;
 615         }
 616         return 0;
 617 }
 618
 619 static
 620 void
 621 s_vFillRTSHead(
 622         struct vnt_private *pDevice,
 623         unsigned char byPktType,
 624         void *pvRTS,
 625         unsigned int cbFrameLength,
 626         bool bNeedAck,
 627         bool bDisCRC,
 628         struct ieee80211_hdr *hdr,
 629         unsigned short wCurrentRate,
 630         unsigned char byFBOption
 631 )
 632 {
 633         unsigned int uRTSFrameLen = 20;
 634
 635         if (!pvRTS)
 636                 return;
 637
 638         if (bDisCRC) {
 639                 /* When CRCDIS bit is on, H/W forgot to generate FCS for
 640                  * RTS frame, in this case we need to decrease its length by 4.
 641                  */
 642                 uRTSFrameLen -= 4;
 643         }
 644
 645         /* Note: So far RTSHead doesn't appear in ATIM & Beacom DMA,
 646          * so we don't need to take them into account.
 647          * Otherwise, we need to modify codes for them.
 648          */
 649         if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
 650                 if (byFBOption == AUTO_FB_NONE) {
 651                         struct vnt_rts_g *buf = pvRTS;
 652                         /* Get SignalField, ServiceField & Length */
 653                         vnt_get_phy_field(pDevice, uRTSFrameLen,
 654                                           pDevice->byTopCCKBasicRate,
 655                                           PK_TYPE_11B, &buf->b);
 656
 657                         vnt_get_phy_field(pDevice, uRTSFrameLen,
 658                                           pDevice->byTopOFDMBasicRate,
 659                                           byPktType, &buf->a);
 660                         /* Get Duration */
 661                         buf->duration_bb =
 662                                 s_uGetRTSCTSDuration(pDevice, RTSDUR_BB,
 663                                                      cbFrameLength, PK_TYPE_11B,
 664                                                      pDevice->byTopCCKBasicRate,
 665                                                      bNeedAck, byFBOption);
 666                         buf->duration_aa =
 667                                 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA,
 668                                                      cbFrameLength, byPktType,
 669                                                      wCurrentRate, bNeedAck,
 670                                                      byFBOption);
 671                         buf->duration_ba =
 672                                 s_uGetRTSCTSDuration(pDevice, RTSDUR_BA,
 673                                                      cbFrameLength, byPktType,
 674                                                      wCurrentRate, bNeedAck,
 675                                                      byFBOption);
 676
 677                         buf->data.duration = buf->duration_aa;
 678                         /* Get RTS Frame body */
 679                         buf->data.frame_control =
 680                                         cpu_to_le16(IEEE80211_FTYPE_CTL |
 681                                                     IEEE80211_STYPE_RTS);
 682
 683                         ether_addr_copy(buf->data.ra, hdr->addr1);
 684                         ether_addr_copy(buf->data.ta, hdr->addr2);
 685                 } else {
 686                         struct vnt_rts_g_fb *buf = pvRTS;
 687                         /* Get SignalField, ServiceField & Length */
 688                         vnt_get_phy_field(pDevice, uRTSFrameLen,
 689                                           pDevice->byTopCCKBasicRate,
 690                                           PK_TYPE_11B, &buf->b);
 691
 692                         vnt_get_phy_field(pDevice, uRTSFrameLen,
 693                                           pDevice->byTopOFDMBasicRate,
 694                                           byPktType, &buf->a);
 695                         /* Get Duration */
 696                         buf->duration_bb =
 697                                 s_uGetRTSCTSDuration(pDevice, RTSDUR_BB,
 698                                                      cbFrameLength, PK_TYPE_11B,
 699                                                      pDevice->byTopCCKBasicRate,
 700                                                      bNeedAck, byFBOption);
 701                         buf->duration_aa =
 702                                 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA,
 703                                                      cbFrameLength, byPktType,
 704                                                      wCurrentRate, bNeedAck,
 705                                                      byFBOption);
 706                         buf->duration_ba =
 707                                 s_uGetRTSCTSDuration(pDevice, RTSDUR_BA,
 708                                                      cbFrameLength, byPktType,
 709                                                      wCurrentRate, bNeedAck,
 710                                                      byFBOption);
 711                         buf->rts_duration_ba_f0 =
 712                                 s_uGetRTSCTSDuration(pDevice, RTSDUR_BA_F0,
 713                                                      cbFrameLength, byPktType,
 714                                                      wCurrentRate, bNeedAck,
 715                                                      byFBOption);
 716                         buf->rts_duration_aa_f0 =
 717                                 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA_F0,
 718                                                      cbFrameLength, byPktType,
 719                                                      wCurrentRate, bNeedAck,
 720                                                      byFBOption);
 721                         buf->rts_duration_ba_f1 =
 722                                 s_uGetRTSCTSDuration(pDevice, RTSDUR_BA_F1,
 723                                                      cbFrameLength, byPktType,
 724                                                      wCurrentRate, bNeedAck,
 725                                                      byFBOption);
 726                         buf->rts_duration_aa_f1 =
 727                                 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA_F1,
 728                                                      cbFrameLength, byPktType,
 729                                                      wCurrentRate, bNeedAck,
 730                                                      byFBOption);
 731                         buf->data.duration = buf->duration_aa;
 732                         /* Get RTS Frame body */
 733                         buf->data.frame_control =
 734                                         cpu_to_le16(IEEE80211_FTYPE_CTL |
 735                                                     IEEE80211_STYPE_RTS);
 736
 737                         ether_addr_copy(buf->data.ra, hdr->addr1);
 738                         ether_addr_copy(buf->data.ta, hdr->addr2);
 739                 } /* if (byFBOption == AUTO_FB_NONE) */
 740         } else if (byPktType == PK_TYPE_11A) {
 741                 if (byFBOption == AUTO_FB_NONE) {
 742                         struct vnt_rts_ab *buf = pvRTS;
 743                         /* Get SignalField, ServiceField & Length */
 744                         vnt_get_phy_field(pDevice, uRTSFrameLen,
 745                                           pDevice->byTopOFDMBasicRate,
 746                                           byPktType, &buf->ab);
 747                         /* Get Duration */
 748                         buf->duration =
 749                                 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA,
 750                                                      cbFrameLength, byPktType,
 751                                                      wCurrentRate, bNeedAck,
 752                                                      byFBOption);
 753                         buf->data.duration = buf->duration;
 754                         /* Get RTS Frame body */
 755                         buf->data.frame_control =
 756                                         cpu_to_le16(IEEE80211_FTYPE_CTL |
 757                                                     IEEE80211_STYPE_RTS);
 758
 759                         ether_addr_copy(buf->data.ra, hdr->addr1);
 760                         ether_addr_copy(buf->data.ta, hdr->addr2);
 761                 } else {
 762                         struct vnt_rts_a_fb *buf = pvRTS;
 763                         /* Get SignalField, ServiceField & Length */
 764                         vnt_get_phy_field(pDevice, uRTSFrameLen,
 765                                           pDevice->byTopOFDMBasicRate,
 766                                           byPktType, &buf->a);
 767                         /* Get Duration */
 768                         buf->duration =
 769                                 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA,
 770                                                      cbFrameLength, byPktType,
 771                                                      wCurrentRate, bNeedAck,
 772                                                      byFBOption);
 773                         buf->rts_duration_f0 =
 774                                 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA_F0,
 775                                                      cbFrameLength, byPktType,
 776                                                      wCurrentRate, bNeedAck,
 777                                                      byFBOption);
 778                         buf->rts_duration_f1 =
 779                                 s_uGetRTSCTSDuration(pDevice, RTSDUR_AA_F1,
 780                                                      cbFrameLength, byPktType,
 781                                                      wCurrentRate, bNeedAck,
 782                                                      byFBOption);
 783                         buf->data.duration = buf->duration;
 784                         /* Get RTS Frame body */
 785                         buf->data.frame_control =
 786                                         cpu_to_le16(IEEE80211_FTYPE_CTL |
 787                                                     IEEE80211_STYPE_RTS);
 788
 789                         ether_addr_copy(buf->data.ra, hdr->addr1);
 790                         ether_addr_copy(buf->data.ta, hdr->addr2);
 791                 }
 792         } else if (byPktType == PK_TYPE_11B) {
 793                 struct vnt_rts_ab *buf = pvRTS;
 794                 /* Get SignalField, ServiceField & Length */
 795                 vnt_get_phy_field(pDevice, uRTSFrameLen,
 796                                   pDevice->byTopCCKBasicRate,
 797                                   PK_TYPE_11B, &buf->ab);
 798                 /* Get Duration */
 799                 buf->duration =
 800                         s_uGetRTSCTSDuration(pDevice, RTSDUR_BB, cbFrameLength,
 801                                              byPktType, wCurrentRate, bNeedAck,
 802                                              byFBOption);
 803
 804                 buf->data.duration = buf->duration;
 805                 /* Get RTS Frame body */
 806                 buf->data.frame_control =
 807                         cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
 808
 809                 ether_addr_copy(buf->data.ra, hdr->addr1);
 810                 ether_addr_copy(buf->data.ta, hdr->addr2);
 811         }
 812 }
 813
 814 static
 815 void
 816 s_vFillCTSHead(
 817         struct vnt_private *pDevice,
 818         unsigned int uDMAIdx,
 819         unsigned char byPktType,
 820         void *pvCTS,
 821         unsigned int cbFrameLength,
 822         bool bNeedAck,
 823         bool bDisCRC,
 824         unsigned short wCurrentRate,
 825         unsigned char byFBOption
 826 )
 827 {
 828         unsigned int uCTSFrameLen = 14;
 829
 830         if (!pvCTS)
 831                 return;
 832
 833         if (bDisCRC) {
 834                 /* When CRCDIS bit is on, H/W forgot to generate FCS for
 835                  * CTS frame, in this case we need to decrease its length by 4.
 836                  */
 837                 uCTSFrameLen -= 4;
 838         }
 839
 840         if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
 841                 if (byFBOption != AUTO_FB_NONE && uDMAIdx != TYPE_ATIMDMA && uDMAIdx != TYPE_BEACONDMA) {
 842                         /* Auto Fall back */
 843                         struct vnt_cts_fb *buf = pvCTS;
 844                         /* Get SignalField, ServiceField & Length */
 845                         vnt_get_phy_field(pDevice, uCTSFrameLen,
 846                                           pDevice->byTopCCKBasicRate,
 847                                           PK_TYPE_11B, &buf->b);
 848
 849                         buf->duration_ba =
 850                                 s_uGetRTSCTSDuration(pDevice, CTSDUR_BA,
 851                                                      cbFrameLength, byPktType,
 852                                                      wCurrentRate, bNeedAck,
 853                                                      byFBOption);
 854
 855                         /* Get CTSDuration_ba_f0 */
 856                         buf->cts_duration_ba_f0 =
 857                                 s_uGetRTSCTSDuration(pDevice, CTSDUR_BA_F0,
 858                                                      cbFrameLength, byPktType,
 859                                                      wCurrentRate, bNeedAck,
 860                                                      byFBOption);
 861
 862                         /* Get CTSDuration_ba_f1 */
 863                         buf->cts_duration_ba_f1 =
 864                                 s_uGetRTSCTSDuration(pDevice, CTSDUR_BA_F1,
 865                                                      cbFrameLength, byPktType,
 866                                                      wCurrentRate, bNeedAck,
 867                                                      byFBOption);
 868
 869                         /* Get CTS Frame body */
 870                         buf->data.duration = buf->duration_ba;
 871
 872                         buf->data.frame_control =
 873                                 cpu_to_le16(IEEE80211_FTYPE_CTL |
 874                                             IEEE80211_STYPE_CTS);
 875
 876                         buf->reserved2 = 0x0;
 877
 878                         ether_addr_copy(buf->data.ra,
 879                                         pDevice->abyCurrentNetAddr);
 880                 } else { /* if (byFBOption != AUTO_FB_NONE && uDMAIdx != TYPE_ATIMDMA && uDMAIdx != TYPE_BEACONDMA) */
 881                         struct vnt_cts *buf = pvCTS;
 882                         /* Get SignalField, ServiceField & Length */
 883                         vnt_get_phy_field(pDevice, uCTSFrameLen,
 884                                           pDevice->byTopCCKBasicRate,
 885                                           PK_TYPE_11B, &buf->b);
 886
 887                         /* Get CTSDuration_ba */
 888                         buf->duration_ba =
 889                                 s_uGetRTSCTSDuration(pDevice, CTSDUR_BA,
 890                                                      cbFrameLength, byPktType,
 891                                                      wCurrentRate, bNeedAck,
 892                                                      byFBOption);
 893
 894                         /* Get CTS Frame body */
 895                         buf->data.duration = buf->duration_ba;
 896
 897                         buf->data.frame_control =
 898                                 cpu_to_le16(IEEE80211_FTYPE_CTL |
 899                                             IEEE80211_STYPE_CTS);
 900
 901                         buf->reserved2 = 0x0;
 902                         ether_addr_copy(buf->data.ra,
 903                                         pDevice->abyCurrentNetAddr);
 904                 }
 905         }
 906 }
 907
 908 /*
 909  *
 910  * Description:
 911  *      Generate FIFO control for MAC & Baseband controller
 912  *
 913  * Parameters:
 914  *  In:
 915  *      pDevice         - Pointer to adapter
 916  *      pTxDataHead     - Transmit Data Buffer
 917  *      pTxBufHead      - pTxBufHead
 918  *      pvRrvTime        - pvRrvTime
 919  *      pvRTS            - RTS Buffer
 920  *      pCTS            - CTS Buffer
 921  *      cbFrameSize     - Transmit Data Length (Hdr+Payload+FCS)
 922  *      bNeedACK        - If need ACK
 923  *      uDescIdx        - Desc Index
 924  *  Out:
 925  *      none
 926  *
 927  * Return Value: none
 928  *
 929  -
 930  * unsigned int cbFrameSize, Hdr+Payload+FCS
 931  */
 932 static
 933 void
 934 s_vGenerateTxParameter(
 935         struct vnt_private *pDevice,
 936         unsigned char byPktType,
 937         struct vnt_tx_fifo_head *tx_buffer_head,
 938         void *pvRrvTime,
 939         void *pvRTS,
 940         void *pvCTS,
 941         unsigned int cbFrameSize,
 942         bool bNeedACK,
 943         unsigned int uDMAIdx,
 944         void *psEthHeader,
 945         unsigned short wCurrentRate
 946 )
 947 {
 948         u16 fifo_ctl = le16_to_cpu(tx_buffer_head->fifo_ctl);
 949         bool bDisCRC = false;
 950         unsigned char byFBOption = AUTO_FB_NONE;
 951
 952         tx_buffer_head->current_rate = cpu_to_le16(wCurrentRate);
 953
 954         if (fifo_ctl & FIFOCTL_CRCDIS)
 955                 bDisCRC = true;
 956
 957         if (fifo_ctl & FIFOCTL_AUTO_FB_0)
 958                 byFBOption = AUTO_FB_0;
 959         else if (fifo_ctl & FIFOCTL_AUTO_FB_1)
 960                 byFBOption = AUTO_FB_1;
 961
 962         if (!pvRrvTime)
 963                 return;
 964
 965         if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
 966                 if (pvRTS) { /* RTS_need */
 967                         /* Fill RsvTime */
 968                         struct vnt_rrv_time_rts *buf = pvRrvTime;
 969
 970                         buf->rts_rrv_time_aa = s_uGetRTSCTSRsvTime(pDevice, 2, byPktType, cbFrameSize, wCurrentRate);
 971                         buf->rts_rrv_time_ba = s_uGetRTSCTSRsvTime(pDevice, 1, byPktType, cbFrameSize, wCurrentRate);
 972                         buf->rts_rrv_time_bb = s_uGetRTSCTSRsvTime(pDevice, 0, byPktType, cbFrameSize, wCurrentRate);
 973                         buf->rrv_time_a = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
 974                         buf->rrv_time_b = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, pDevice->byTopCCKBasicRate, bNeedACK);
 975
 976                         s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
 977                 } else {/* RTS_needless, PCF mode */
 978                         struct vnt_rrv_time_cts *buf = pvRrvTime;
 979
 980                         buf->rrv_time_a = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
 981                         buf->rrv_time_b = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, pDevice->byTopCCKBasicRate, bNeedACK);
 982                         buf->cts_rrv_time_ba = s_uGetRTSCTSRsvTime(pDevice, 3, byPktType, cbFrameSize, wCurrentRate);
 983
 984                         /* Fill CTS */
 985                         s_vFillCTSHead(pDevice, uDMAIdx, byPktType, pvCTS, cbFrameSize, bNeedACK, bDisCRC, wCurrentRate, byFBOption);
 986                 }
 987         } else if (byPktType == PK_TYPE_11A) {
 988                 if (pvRTS) {/* RTS_need, non PCF mode */
 989                         struct vnt_rrv_time_ab *buf = pvRrvTime;
 990
 991                         buf->rts_rrv_time = s_uGetRTSCTSRsvTime(pDevice, 2, byPktType, cbFrameSize, wCurrentRate);
 992                         buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, byPktType, cbFrameSize, wCurrentRate, bNeedACK);
 993
 994                         /* Fill RTS */
 995                         s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
 996                 } else if (!pvRTS) {/* RTS_needless, non PCF mode */
 997                         struct vnt_rrv_time_ab *buf = pvRrvTime;
 998
 999                         buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11A, cbFrameSize, wCurrentRate, bNeedACK);
1000                 }
1001         } else if (byPktType == PK_TYPE_11B) {
1002                 if (pvRTS) {/* RTS_need, non PCF mode */
1003                         struct vnt_rrv_time_ab *buf = pvRrvTime;
1004
1005                         buf->rts_rrv_time = s_uGetRTSCTSRsvTime(pDevice, 0, byPktType, cbFrameSize, wCurrentRate);
1006                         buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK);
1007
1008                         /* Fill RTS */
1009                         s_vFillRTSHead(pDevice, byPktType, pvRTS, cbFrameSize, bNeedACK, bDisCRC, psEthHeader, wCurrentRate, byFBOption);
1010                 } else { /* RTS_needless, non PCF mode */
1011                         struct vnt_rrv_time_ab *buf = pvRrvTime;
1012
1013                         buf->rrv_time = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B, cbFrameSize, wCurrentRate, bNeedACK);
1014                 }
1015         }
1016 }
1017
1018 static unsigned int
1019 s_cbFillTxBufHead(struct vnt_private *pDevice, unsigned char byPktType,
1020                   unsigned char *pbyTxBufferAddr,
1021                   unsigned int uDMAIdx, struct vnt_tx_desc *pHeadTD,
1022                   unsigned int is_pspoll)
1023 {
1024         struct vnt_td_info *td_info = pHeadTD->td_info;
1025         struct sk_buff *skb = td_info->skb;
1026         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1027         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1028         struct vnt_tx_fifo_head *tx_buffer_head =
1029                         (struct vnt_tx_fifo_head *)td_info->buf;
1030         u16 fifo_ctl = le16_to_cpu(tx_buffer_head->fifo_ctl);
1031         unsigned int cbFrameSize;
1032         __le16 uDuration;
1033         unsigned char *pbyBuffer;
1034         unsigned int uLength = 0;
1035         unsigned int cbMICHDR = 0;
1036         unsigned int uMACfragNum = 1;
1037         unsigned int uPadding = 0;
1038         unsigned int cbReqCount = 0;
1039         bool bNeedACK = (bool)(fifo_ctl & FIFOCTL_NEEDACK);
1040         bool bRTS = (bool)(fifo_ctl & FIFOCTL_RTS);
1041         struct vnt_tx_desc *ptdCurr;
1042         unsigned int cbHeaderLength = 0;
1043         void *pvRrvTime;
1044         struct vnt_mic_hdr *pMICHDR;
1045         void *pvRTS;
1046         void *pvCTS;
1047         void *pvTxDataHd;
1048         unsigned short wTxBufSize;   /* FFinfo size */
1049         unsigned char byFBOption = AUTO_FB_NONE;
1050
1051         pvRrvTime = pMICHDR = pvRTS = pvCTS = pvTxDataHd = NULL;
1052
1053         cbFrameSize = skb->len + 4;
1054
1055         if (info->control.hw_key) {
1056                 switch (info->control.hw_key->cipher) {
1057                 case WLAN_CIPHER_SUITE_CCMP:
1058                         cbMICHDR = sizeof(struct vnt_mic_hdr);
1059                 default:
1060                         break;
1061                 }
1062
1063                 cbFrameSize += info->control.hw_key->icv_len;
1064
1065                 if (pDevice->byLocalID > REV_ID_VT3253_A1) {
1066                         /* MAC Header should be padding 0 to DW alignment. */
1067                         uPadding = 4 - (ieee80211_get_hdrlen_from_skb(skb) % 4);
1068                         uPadding %= 4;
1069                 }
1070         }
1071
1072         /*
1073          * Use for AUTO FALL BACK
1074          */
1075         if (fifo_ctl & FIFOCTL_AUTO_FB_0)
1076                 byFBOption = AUTO_FB_0;
1077         else if (fifo_ctl & FIFOCTL_AUTO_FB_1)
1078                 byFBOption = AUTO_FB_1;
1079
1080         /* Set RrvTime/RTS/CTS Buffer */
1081         wTxBufSize = sizeof(struct vnt_tx_fifo_head);
1082         if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {/* 802.11g packet */
1083
1084                 if (byFBOption == AUTO_FB_NONE) {
1085                         if (bRTS) {/* RTS_need */
1086                                 pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
1087                                 pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts));
1088                                 pvRTS = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts) + cbMICHDR);
1089                                 pvCTS = NULL;
1090                                 pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
1091                                                         cbMICHDR + sizeof(struct vnt_rts_g));
1092                                 cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
1093                                                         cbMICHDR + sizeof(struct vnt_rts_g) +
1094                                                         sizeof(struct vnt_tx_datahead_g);
1095                         } else { /* RTS_needless */
1096                                 pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
1097                                 pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts));
1098                                 pvRTS = NULL;
1099                                 pvCTS = (void *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts) + cbMICHDR);
1100                                 pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize +
1101                                                 sizeof(struct vnt_rrv_time_cts) + cbMICHDR + sizeof(struct vnt_cts));
1102                                 cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
1103                                                         cbMICHDR + sizeof(struct vnt_cts) + sizeof(struct vnt_tx_datahead_g);
1104                         }
1105                 } else {
1106                         /* Auto Fall Back */
1107                         if (bRTS) {/* RTS_need */
1108                                 pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
1109                                 pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts));
1110                                 pvRTS = (void *) (pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts) + cbMICHDR);
1111                                 pvCTS = NULL;
1112                                 pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
1113                                         cbMICHDR + sizeof(struct vnt_rts_g_fb));
1114                                 cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
1115                                         cbMICHDR + sizeof(struct vnt_rts_g_fb) + sizeof(struct vnt_tx_datahead_g_fb);
1116                         } else { /* RTS_needless */
1117                                 pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
1118                                 pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts));
1119                                 pvRTS = NULL;
1120                                 pvCTS = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts) + cbMICHDR);
1121                                 pvTxDataHd = (void  *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
1122                                         cbMICHDR + sizeof(struct vnt_cts_fb));
1123                                 cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
1124                                         cbMICHDR + sizeof(struct vnt_cts_fb) + sizeof(struct vnt_tx_datahead_g_fb);
1125                         }
1126                 } /* Auto Fall Back */
1127         } else {/* 802.11a/b packet */
1128
1129                 if (byFBOption == AUTO_FB_NONE) {
1130                         if (bRTS) {
1131                                 pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
1132                                 pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
1133                                 pvRTS = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
1134                                 pvCTS = NULL;
1135                                 pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize +
1136                                         sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(struct vnt_rts_ab));
1137                                 cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
1138                                         cbMICHDR + sizeof(struct vnt_rts_ab) + sizeof(struct vnt_tx_datahead_ab);
1139                         } else { /* RTS_needless, need MICHDR */
1140                                 pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
1141                                 pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
1142                                 pvRTS = NULL;
1143                                 pvCTS = NULL;
1144                                 pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
1145                                 cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
1146                                         cbMICHDR + sizeof(struct vnt_tx_datahead_ab);
1147                         }
1148                 } else {
1149                         /* Auto Fall Back */
1150                         if (bRTS) { /* RTS_need */
1151                                 pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
1152                                 pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
1153                                 pvRTS = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
1154                                 pvCTS = NULL;
1155                                 pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize +
1156                                         sizeof(struct vnt_rrv_time_ab) + cbMICHDR + sizeof(struct vnt_rts_a_fb));
1157                                 cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
1158                                         cbMICHDR + sizeof(struct vnt_rts_a_fb) + sizeof(struct vnt_tx_datahead_a_fb);
1159                         } else { /* RTS_needless */
1160                                 pvRrvTime = (void *)(pbyTxBufferAddr + wTxBufSize);
1161                                 pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab));
1162                                 pvRTS = NULL;
1163                                 pvCTS = NULL;
1164                                 pvTxDataHd = (void *)(pbyTxBufferAddr + wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
1165                                 cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
1166                                         cbMICHDR + sizeof(struct vnt_tx_datahead_a_fb);
1167                         }
1168                 } /* Auto Fall Back */
1169         }
1170
1171         td_info->mic_hdr = pMICHDR;
1172
1173         memset((void *)(pbyTxBufferAddr + wTxBufSize), 0, (cbHeaderLength - wTxBufSize));
1174
1175         /* Fill FIFO,RrvTime,RTS,and CTS */
1176         s_vGenerateTxParameter(pDevice, byPktType, tx_buffer_head, pvRrvTime, pvRTS, pvCTS,
1177                                cbFrameSize, bNeedACK, uDMAIdx, hdr, pDevice->wCurrentRate);
1178         /* Fill DataHead */
1179         uDuration = s_uFillDataHead(pDevice, byPktType, pvTxDataHd, cbFrameSize, uDMAIdx, bNeedACK,
1180                                     0, 0, uMACfragNum, byFBOption, pDevice->wCurrentRate, is_pspoll);
1181
1182         hdr->duration_id = uDuration;
1183
1184         cbReqCount = cbHeaderLength + uPadding + skb->len;
1185         pbyBuffer = (unsigned char *)pHeadTD->td_info->buf;
1186         uLength = cbHeaderLength + uPadding;
1187
1188         /* Copy the Packet into a tx Buffer */
1189         memcpy((pbyBuffer + uLength), skb->data, skb->len);
1190
1191         ptdCurr = pHeadTD;
1192
1193         ptdCurr->td_info->req_count = (u16)cbReqCount;
1194
1195         return cbHeaderLength;
1196 }
1197
1198 static void vnt_fill_txkey(struct ieee80211_hdr *hdr, u8 *key_buffer,
1199                            struct ieee80211_key_conf *tx_key,
1200                            struct sk_buff *skb, u16 payload_len,
1201                            struct vnt_mic_hdr *mic_hdr)
1202 {
1203         u64 pn64;
1204         u8 *iv = ((u8 *)hdr + ieee80211_get_hdrlen_from_skb(skb));
1205
1206         /* strip header and icv len from payload */
1207         payload_len -= ieee80211_get_hdrlen_from_skb(skb);
1208         payload_len -= tx_key->icv_len;
1209
1210         switch (tx_key->cipher) {
1211         case WLAN_CIPHER_SUITE_WEP40:
1212         case WLAN_CIPHER_SUITE_WEP104:
1213                 memcpy(key_buffer, iv, 3);
1214                 memcpy(key_buffer + 3, tx_key->key, tx_key->keylen);
1215
1216                 if (tx_key->keylen == WLAN_KEY_LEN_WEP40) {
1217                         memcpy(key_buffer + 8, iv, 3);
1218                         memcpy(key_buffer + 11,
1219                                tx_key->key, WLAN_KEY_LEN_WEP40);
1220                 }
1221
1222                 break;
1223         case WLAN_CIPHER_SUITE_TKIP:
1224                 ieee80211_get_tkip_p2k(tx_key, skb, key_buffer);
1225
1226                 break;
1227         case WLAN_CIPHER_SUITE_CCMP:
1228
1229                 if (!mic_hdr)
1230                         return;
1231
1232                 mic_hdr->id = 0x59;
1233                 mic_hdr->payload_len = cpu_to_be16(payload_len);
1234                 ether_addr_copy(mic_hdr->mic_addr2, hdr->addr2);
1235
1236                 pn64 = atomic64_read(&tx_key->tx_pn);
1237                 mic_hdr->ccmp_pn[5] = pn64;
1238                 mic_hdr->ccmp_pn[4] = pn64 >> 8;
1239                 mic_hdr->ccmp_pn[3] = pn64 >> 16;
1240                 mic_hdr->ccmp_pn[2] = pn64 >> 24;
1241                 mic_hdr->ccmp_pn[1] = pn64 >> 32;
1242                 mic_hdr->ccmp_pn[0] = pn64 >> 40;
1243
1244                 if (ieee80211_has_a4(hdr->frame_control))
1245                         mic_hdr->hlen = cpu_to_be16(28);
1246                 else
1247                         mic_hdr->hlen = cpu_to_be16(22);
1248
1249                 ether_addr_copy(mic_hdr->addr1, hdr->addr1);
1250                 ether_addr_copy(mic_hdr->addr2, hdr->addr2);
1251                 ether_addr_copy(mic_hdr->addr3, hdr->addr3);
1252
1253                 mic_hdr->frame_control = cpu_to_le16(
1254                         le16_to_cpu(hdr->frame_control) & 0xc78f);
1255                 mic_hdr->seq_ctrl = cpu_to_le16(
1256                                 le16_to_cpu(hdr->seq_ctrl) & 0xf);
1257
1258                 if (ieee80211_has_a4(hdr->frame_control))
1259                         ether_addr_copy(mic_hdr->addr4, hdr->addr4);
1260
1261                 memcpy(key_buffer, tx_key->key, WLAN_KEY_LEN_CCMP);
1262
1263                 break;
1264         default:
1265                 break;
1266         }
1267 }
1268
1269 int vnt_generate_fifo_header(struct vnt_private *priv, u32 dma_idx,
1270                              struct vnt_tx_desc *head_td, struct sk_buff *skb)
1271 {
1272         struct vnt_td_info *td_info = head_td->td_info;
1273         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1274         struct ieee80211_tx_rate *tx_rate = &info->control.rates[0];
1275         struct ieee80211_rate *rate;
1276         struct ieee80211_key_conf *tx_key;
1277         struct ieee80211_hdr *hdr;
1278         struct vnt_tx_fifo_head *tx_buffer_head =
1279                         (struct vnt_tx_fifo_head *)td_info->buf;
1280         u16 tx_body_size = skb->len, current_rate;
1281         u8 pkt_type;
1282         bool is_pspoll = false;
1283
1284         memset(tx_buffer_head, 0, sizeof(*tx_buffer_head));
1285
1286         hdr = (struct ieee80211_hdr *)(skb->data);
1287
1288         rate = ieee80211_get_tx_rate(priv->hw, info);
1289
1290         current_rate = rate->hw_value;
1291         if (priv->wCurrentRate != current_rate &&
1292                         !(priv->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)) {
1293                 priv->wCurrentRate = current_rate;
1294
1295                 RFbSetPower(priv, priv->wCurrentRate,
1296                             priv->hw->conf.chandef.chan->hw_value);
1297         }
1298
1299         if (current_rate > RATE_11M) {
1300                 if (info->band == NL80211_BAND_5GHZ) {
1301                         pkt_type = PK_TYPE_11A;
1302                 } else {
1303                         if (tx_rate->flags & IEEE80211_TX_RC_USE_CTS_PROTECT)
1304                                 pkt_type = PK_TYPE_11GB;
1305                         else
1306                                 pkt_type = PK_TYPE_11GA;
1307                 }
1308         } else {
1309                 pkt_type = PK_TYPE_11B;
1310         }
1311
1312         /*Set fifo controls */
1313         if (pkt_type == PK_TYPE_11A)
1314                 tx_buffer_head->fifo_ctl = 0;
1315         else if (pkt_type == PK_TYPE_11B)
1316                 tx_buffer_head->fifo_ctl = cpu_to_le16(FIFOCTL_11B);
1317         else if (pkt_type == PK_TYPE_11GB)
1318                 tx_buffer_head->fifo_ctl = cpu_to_le16(FIFOCTL_11GB);
1319         else if (pkt_type == PK_TYPE_11GA)
1320                 tx_buffer_head->fifo_ctl = cpu_to_le16(FIFOCTL_11GA);
1321
1322         /* generate interrupt */
1323         tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_GENINT);
1324
1325         if (!ieee80211_is_data(hdr->frame_control)) {
1326                 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_TMOEN);
1327                 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_ISDMA0);
1328                 tx_buffer_head->time_stamp =
1329                         cpu_to_le16(DEFAULT_MGN_LIFETIME_RES_64us);
1330         } else {
1331                 tx_buffer_head->time_stamp =
1332                         cpu_to_le16(DEFAULT_MSDU_LIFETIME_RES_64us);
1333         }
1334
1335         if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
1336                 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_NEEDACK);
1337
1338         if (ieee80211_has_retry(hdr->frame_control))
1339                 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_LRETRY);
1340
1341         if (tx_rate->flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
1342                 priv->byPreambleType = PREAMBLE_SHORT;
1343         else
1344                 priv->byPreambleType = PREAMBLE_LONG;
1345
1346         if (tx_rate->flags & IEEE80211_TX_RC_USE_RTS_CTS)
1347                 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_RTS);
1348
1349         if (ieee80211_has_a4(hdr->frame_control)) {
1350                 tx_buffer_head->fifo_ctl |= cpu_to_le16(FIFOCTL_LHEAD);
1351                 priv->bLongHeader = true;
1352         }
1353
1354         if (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER)
1355                 is_pspoll = true;
1356
1357         tx_buffer_head->frag_ctl =
1358                         cpu_to_le16(ieee80211_get_hdrlen_from_skb(skb) << 10);
1359
1360         if (info->control.hw_key) {
1361                 tx_key = info->control.hw_key;
1362
1363                 switch (info->control.hw_key->cipher) {
1364                 case WLAN_CIPHER_SUITE_WEP40:
1365                 case WLAN_CIPHER_SUITE_WEP104:
1366                         tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_LEGACY);
1367                         break;
1368                 case WLAN_CIPHER_SUITE_TKIP:
1369                         tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_TKIP);
1370                         break;
1371                 case WLAN_CIPHER_SUITE_CCMP:
1372                         tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_AES);
1373                 default:
1374                         break;
1375                 }
1376         }
1377
1378         tx_buffer_head->current_rate = cpu_to_le16(current_rate);
1379
1380         /* legacy rates TODO use ieee80211_tx_rate */
1381         if (current_rate >= RATE_18M && ieee80211_is_data(hdr->frame_control)) {
1382                 if (priv->byAutoFBCtrl == AUTO_FB_0)
1383                         tx_buffer_head->fifo_ctl |=
1384                                                 cpu_to_le16(FIFOCTL_AUTO_FB_0);
1385                 else if (priv->byAutoFBCtrl == AUTO_FB_1)
1386                         tx_buffer_head->fifo_ctl |=
1387                                                 cpu_to_le16(FIFOCTL_AUTO_FB_1);
1388         }
1389
1390         tx_buffer_head->frag_ctl |= cpu_to_le16(FRAGCTL_NONFRAG);
1391
1392         s_cbFillTxBufHead(priv, pkt_type, (u8 *)tx_buffer_head,
1393                           dma_idx, head_td, is_pspoll);
1394
1395         if (info->control.hw_key) {
1396                 tx_key = info->control.hw_key;
1397                 if (tx_key->keylen > 0)
1398                         vnt_fill_txkey(hdr, tx_buffer_head->tx_key,
1399                                 tx_key, skb, tx_body_size, td_info->mic_hdr);
1400         }
1401
1402         return 0;
1403 }
1404
1405 static int vnt_beacon_xmit(struct vnt_private *priv,
1406                            struct sk_buff *skb)
1407 {
1408         struct vnt_tx_short_buf_head *short_head =
1409                 (struct vnt_tx_short_buf_head *)priv->tx_beacon_bufs;
1410         struct ieee80211_mgmt *mgmt_hdr = (struct ieee80211_mgmt *)
1411                                 (priv->tx_beacon_bufs + sizeof(*short_head));
1412         struct ieee80211_tx_info *info;
1413         u32 frame_size = skb->len + 4;
1414         u16 current_rate;
1415
1416         memset(priv->tx_beacon_bufs, 0, sizeof(*short_head));
1417
1418         if (priv->byBBType == BB_TYPE_11A) {
1419                 current_rate = RATE_6M;
1420
1421                 /* Get SignalField,ServiceField,Length */
1422                 vnt_get_phy_field(priv, frame_size, current_rate,
1423                                   PK_TYPE_11A, &short_head->ab);
1424
1425                 /* Get Duration and TimeStampOff */
1426                 short_head->duration =
1427                         cpu_to_le16((u16)s_uGetDataDuration(priv, DATADUR_B,
1428                                     frame_size, PK_TYPE_11A, current_rate,
1429                                     false, 0, 0, 1, AUTO_FB_NONE));
1430
1431                 short_head->time_stamp_off =
1432                                 vnt_time_stamp_off(priv, current_rate);
1433         } else {
1434                 current_rate = RATE_1M;
1435                 short_head->fifo_ctl |= cpu_to_le16(FIFOCTL_11B);
1436
1437                 /* Get SignalField,ServiceField,Length */
1438                 vnt_get_phy_field(priv, frame_size, current_rate,
1439                                   PK_TYPE_11B, &short_head->ab);
1440
1441                 /* Get Duration and TimeStampOff */
1442                 short_head->duration =
1443                         cpu_to_le16((u16)s_uGetDataDuration(priv, DATADUR_B,
1444                                     frame_size, PK_TYPE_11B, current_rate,
1445                                     false, 0, 0, 1, AUTO_FB_NONE));
1446
1447                 short_head->time_stamp_off =
1448                         vnt_time_stamp_off(priv, current_rate);
1449         }
1450
1451         short_head->fifo_ctl |= cpu_to_le16(FIFOCTL_GENINT);
1452
1453         /* Copy Beacon */
1454         memcpy(mgmt_hdr, skb->data, skb->len);
1455
1456         /* time stamp always 0 */
1457         mgmt_hdr->u.beacon.timestamp = 0;
1458
1459         info = IEEE80211_SKB_CB(skb);
1460         if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
1461                 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)mgmt_hdr;
1462
1463                 hdr->duration_id = 0;
1464                 hdr->seq_ctrl = cpu_to_le16(priv->wSeqCounter << 4);
1465         }
1466
1467         priv->wSeqCounter++;
1468         if (priv->wSeqCounter > 0x0fff)
1469                 priv->wSeqCounter = 0;
1470
1471         priv->wBCNBufLen = sizeof(*short_head) + skb->len;
1472
1473         MACvSetCurrBCNTxDescAddr(priv->PortOffset, priv->tx_beacon_dma);
1474
1475         MACvSetCurrBCNLength(priv->PortOffset, priv->wBCNBufLen);
1476         /* Set auto Transmit on */
1477         MACvRegBitsOn(priv->PortOffset, MAC_REG_TCR, TCR_AUTOBCNTX);
1478         /* Poll Transmit the adapter */
1479         MACvTransmitBCN(priv->PortOffset);
1480
1481         return 0;
1482 }
1483
1484 int vnt_beacon_make(struct vnt_private *priv, struct ieee80211_vif *vif)
1485 {
1486         struct sk_buff *beacon;
1487
1488         beacon = ieee80211_beacon_get(priv->hw, vif);
1489         if (!beacon)
1490                 return -ENOMEM;
1491
1492         if (vnt_beacon_xmit(priv, beacon)) {
1493                 ieee80211_free_txskb(priv->hw, beacon);
1494                 return -ENODEV;
1495         }
1496
1497         return 0;
1498 }
1499
1500 int vnt_beacon_enable(struct vnt_private *priv, struct ieee80211_vif *vif,
1501                       struct ieee80211_bss_conf *conf)
1502 {
1503         VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTRST);
1504
1505         VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
1506
1507         CARDvSetFirstNextTBTT(priv, conf->beacon_int);
1508
1509         CARDbSetBeaconPeriod(priv, conf->beacon_int);
1510
1511         return vnt_beacon_make(priv, vif);
1512 }