drivers/staging/vt6655/card.c

   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: card.c
  20  * Purpose: Provide functions to setup NIC operation mode
  21  * Functions:
  22  *      s_vSafeResetTx - Rest Tx
  23  *      CARDvSetRSPINF - Set RSPINF
  24  *      CARDvUpdateBasicTopRate - Update BasicTopRate
  25  *      CARDbAddBasicRate - Add to BasicRateSet
  26  *      CARDbIsOFDMinBasicRate - Check if any OFDM rate is in BasicRateSet
  27  *      CARDvSetLoopbackMode - Set Loopback mode
  28  *      CARDbSoftwareReset - Sortware reset NIC
  29  *      CARDqGetTSFOffset - Calculate TSFOffset
  30  *      CARDbGetCurrentTSF - Read Current NIC TSF counter
  31  *      CARDqGetNextTBTT - Calculate Next Beacon TSF counter
  32  *      CARDvSetFirstNextTBTT - Set NIC Beacon time
  33  *      CARDvUpdateNextTBTT - Sync. NIC Beacon time
  34  *      CARDbRadioPowerOff - Turn Off NIC Radio Power
  35  *      CARDbRadioPowerOn - Turn On NIC Radio Power
  36  *
  37  * Revision History:
  38  *      06-10-2003 Bryan YC Fan:  Re-write codes to support VT3253 spec.
  39  *      08-26-2003 Kyle Hsu:      Modify the defination type of dwIoBase.
  40  *      09-01-2003 Bryan YC Fan:  Add vUpdateIFS().
  41  *
  42  */
  43
  44 #include "tmacro.h"
  45 #include "card.h"
  46 #include "baseband.h"
  47 #include "mac.h"
  48 #include "desc.h"
  49 #include "rf.h"
  50 #include "power.h"
  51
  52 /*---------------------  Static Definitions -------------------------*/
  53
  54 #define C_SIFS_A        16      /* micro sec. */
  55 #define C_SIFS_BG       10
  56
  57 #define C_EIFS          80      /* micro sec. */
  58
  59 #define C_SLOT_SHORT    9       /* micro sec. */
  60 #define C_SLOT_LONG     20
  61
  62 #define C_CWMIN_A       15      /* slot time */
  63 #define C_CWMIN_B       31
  64
  65 #define C_CWMAX         1023    /* slot time */
  66
  67 #define WAIT_BEACON_TX_DOWN_TMO         3    /* Times */
  68
  69 /*---------------------  Static Variables  --------------------------*/
  70
  71 static const unsigned short cwRXBCNTSFOff[MAX_RATE] = {
  72         17, 17, 17, 17, 34, 23, 17, 11, 8, 5, 4, 3};
  73
  74 /*---------------------  Static Functions  --------------------------*/
  75
  76 static
  77 void
  78 s_vCalculateOFDMRParameter(
  79         unsigned char byRate,
  80         u8 bb_type,
  81         unsigned char *pbyTxRate,
  82         unsigned char *pbyRsvTime
  83 );
  84
  85 /*---------------------  Export Functions  --------------------------*/
  86
  87 /*
  88  * Description: Calculate TxRate and RsvTime fields for RSPINF in OFDM mode.
  89  *
  90  * Parameters:
  91  *  In:
  92  *      wRate           - Tx Rate
  93  *      byPktType       - Tx Packet type
  94  *  Out:
  95  *      pbyTxRate       - pointer to RSPINF TxRate field
  96  *      pbyRsvTime      - pointer to RSPINF RsvTime field
  97  *
  98  * Return Value: none
  99  */
 100 static
 101 void
 102 s_vCalculateOFDMRParameter(
 103         unsigned char byRate,
 104         u8 bb_type,
 105         unsigned char *pbyTxRate,
 106         unsigned char *pbyRsvTime
 107 )
 108 {
 109         switch (byRate) {
 110         case RATE_6M:
 111                 if (bb_type == BB_TYPE_11A) { /* 5GHZ */
 112                         *pbyTxRate = 0x9B;
 113                         *pbyRsvTime = 44;
 114                 } else {
 115                         *pbyTxRate = 0x8B;
 116                         *pbyRsvTime = 50;
 117                 }
 118                 break;
 119
 120         case RATE_9M:
 121                 if (bb_type == BB_TYPE_11A) { /* 5GHZ */
 122                         *pbyTxRate = 0x9F;
 123                         *pbyRsvTime = 36;
 124                 } else {
 125                         *pbyTxRate = 0x8F;
 126                         *pbyRsvTime = 42;
 127                 }
 128                 break;
 129
 130         case RATE_12M:
 131                 if (bb_type == BB_TYPE_11A) { /* 5GHZ */
 132                         *pbyTxRate = 0x9A;
 133                         *pbyRsvTime = 32;
 134                 } else {
 135                         *pbyTxRate = 0x8A;
 136                         *pbyRsvTime = 38;
 137                 }
 138                 break;
 139
 140         case RATE_18M:
 141                 if (bb_type == BB_TYPE_11A) { /* 5GHZ */
 142                         *pbyTxRate = 0x9E;
 143                         *pbyRsvTime = 28;
 144                 } else {
 145                         *pbyTxRate = 0x8E;
 146                         *pbyRsvTime = 34;
 147                 }
 148                 break;
 149
 150         case RATE_36M:
 151                 if (bb_type == BB_TYPE_11A) { /* 5GHZ */
 152                         *pbyTxRate = 0x9D;
 153                         *pbyRsvTime = 24;
 154                 } else {
 155                         *pbyTxRate = 0x8D;
 156                         *pbyRsvTime = 30;
 157                 }
 158                 break;
 159
 160         case RATE_48M:
 161                 if (bb_type == BB_TYPE_11A) { /* 5GHZ */
 162                         *pbyTxRate = 0x98;
 163                         *pbyRsvTime = 24;
 164                 } else {
 165                         *pbyTxRate = 0x88;
 166                         *pbyRsvTime = 30;
 167                 }
 168                 break;
 169
 170         case RATE_54M:
 171                 if (bb_type == BB_TYPE_11A) { /* 5GHZ */
 172                         *pbyTxRate = 0x9C;
 173                         *pbyRsvTime = 24;
 174                 } else {
 175                         *pbyTxRate = 0x8C;
 176                         *pbyRsvTime = 30;
 177                 }
 178                 break;
 179
 180         case RATE_24M:
 181         default:
 182                 if (bb_type == BB_TYPE_11A) { /* 5GHZ */
 183                         *pbyTxRate = 0x99;
 184                         *pbyRsvTime = 28;
 185                 } else {
 186                         *pbyTxRate = 0x89;
 187                         *pbyRsvTime = 34;
 188                 }
 189                 break;
 190         }
 191 }
 192
 193 /*---------------------  Export Functions  --------------------------*/
 194
 195 /*
 196  * Description: Update IFS
 197  *
 198  * Parameters:
 199  *  In:
 200  *      pDevice             - The adapter to be set
 201  *  Out:
 202  *      none
 203  *
 204  * Return Value: None.
 205  */
 206 bool CARDbSetPhyParameter(struct vnt_private *pDevice, u8 bb_type)
 207 {
 208         unsigned char byCWMaxMin = 0;
 209         unsigned char bySlot = 0;
 210         unsigned char bySIFS = 0;
 211         unsigned char byDIFS = 0;
 212         unsigned char byData;
 213         int i;
 214
 215         /* Set SIFS, DIFS, EIFS, SlotTime, CwMin */
 216         if (bb_type == BB_TYPE_11A) {
 217                 if (pDevice->byRFType == RF_AIROHA7230) {
 218                         /* AL7230 use single PAPE and connect to PAPE_2.4G */
 219                         MACvSetBBType(pDevice->PortOffset, BB_TYPE_11G);
 220                         pDevice->abyBBVGA[0] = 0x20;
 221                         pDevice->abyBBVGA[2] = 0x10;
 222                         pDevice->abyBBVGA[3] = 0x10;
 223                         BBbReadEmbedded(pDevice, 0xE7, &byData);
 224                         if (byData == 0x1C)
 225                                 BBbWriteEmbedded(pDevice, 0xE7, pDevice->abyBBVGA[0]);
 226
 227                 } else if (pDevice->byRFType == RF_UW2452) {
 228                         MACvSetBBType(pDevice->PortOffset, BB_TYPE_11A);
 229                         pDevice->abyBBVGA[0] = 0x18;
 230                         BBbReadEmbedded(pDevice, 0xE7, &byData);
 231                         if (byData == 0x14) {
 232                                 BBbWriteEmbedded(pDevice, 0xE7, pDevice->abyBBVGA[0]);
 233                                 BBbWriteEmbedded(pDevice, 0xE1, 0x57);
 234                         }
 235                 } else {
 236                         MACvSetBBType(pDevice->PortOffset, BB_TYPE_11A);
 237                 }
 238                 BBbWriteEmbedded(pDevice, 0x88, 0x03);
 239                 bySlot = C_SLOT_SHORT;
 240                 bySIFS = C_SIFS_A;
 241                 byDIFS = C_SIFS_A + 2*C_SLOT_SHORT;
 242                 byCWMaxMin = 0xA4;
 243         } else if (bb_type == BB_TYPE_11B) {
 244                 MACvSetBBType(pDevice->PortOffset, BB_TYPE_11B);
 245                 if (pDevice->byRFType == RF_AIROHA7230) {
 246                         pDevice->abyBBVGA[0] = 0x1C;
 247                         pDevice->abyBBVGA[2] = 0x00;
 248                         pDevice->abyBBVGA[3] = 0x00;
 249                         BBbReadEmbedded(pDevice, 0xE7, &byData);
 250                         if (byData == 0x20)
 251                                 BBbWriteEmbedded(pDevice, 0xE7, pDevice->abyBBVGA[0]);
 252
 253                 } else if (pDevice->byRFType == RF_UW2452) {
 254                         pDevice->abyBBVGA[0] = 0x14;
 255                         BBbReadEmbedded(pDevice, 0xE7, &byData);
 256                         if (byData == 0x18) {
 257                                 BBbWriteEmbedded(pDevice, 0xE7, pDevice->abyBBVGA[0]);
 258                                 BBbWriteEmbedded(pDevice, 0xE1, 0xD3);
 259                         }
 260                 }
 261                 BBbWriteEmbedded(pDevice, 0x88, 0x02);
 262                 bySlot = C_SLOT_LONG;
 263                 bySIFS = C_SIFS_BG;
 264                 byDIFS = C_SIFS_BG + 2*C_SLOT_LONG;
 265                 byCWMaxMin = 0xA5;
 266         } else { /* PK_TYPE_11GA & PK_TYPE_11GB */
 267                 MACvSetBBType(pDevice->PortOffset, BB_TYPE_11G);
 268                 if (pDevice->byRFType == RF_AIROHA7230) {
 269                         pDevice->abyBBVGA[0] = 0x1C;
 270                         pDevice->abyBBVGA[2] = 0x00;
 271                         pDevice->abyBBVGA[3] = 0x00;
 272                         BBbReadEmbedded(pDevice, 0xE7, &byData);
 273                         if (byData == 0x20)
 274                                 BBbWriteEmbedded(pDevice, 0xE7, pDevice->abyBBVGA[0]);
 275
 276                 } else if (pDevice->byRFType == RF_UW2452) {
 277                         pDevice->abyBBVGA[0] = 0x14;
 278                         BBbReadEmbedded(pDevice, 0xE7, &byData);
 279                         if (byData == 0x18) {
 280                                 BBbWriteEmbedded(pDevice, 0xE7, pDevice->abyBBVGA[0]);
 281                                 BBbWriteEmbedded(pDevice, 0xE1, 0xD3);
 282                         }
 283                 }
 284                 BBbWriteEmbedded(pDevice, 0x88, 0x08);
 285                 bySIFS = C_SIFS_BG;
 286
 287                 if (pDevice->bShortSlotTime) {
 288                         bySlot = C_SLOT_SHORT;
 289                         byDIFS = C_SIFS_BG + 2*C_SLOT_SHORT;
 290                 } else {
 291                         bySlot = C_SLOT_LONG;
 292                         byDIFS = C_SIFS_BG + 2*C_SLOT_LONG;
 293                 }
 294
 295                 byCWMaxMin = 0xa4;
 296
 297                 for (i = RATE_54M; i >= RATE_6M; i--) {
 298                         if (pDevice->basic_rates & ((u32)(0x1 << i))) {
 299                                 byCWMaxMin |= 0x1;
 300                                 break;
 301                         }
 302                 }
 303         }
 304
 305         if (pDevice->byRFType == RF_RFMD2959) {
 306                 /*
 307                  * bcs TX_PE will reserve 3 us hardware's processing
 308                  * time here is 2 us.
 309                  */
 310                 bySIFS -= 3;
 311                 byDIFS -= 3;
 312                 /*
 313                  * TX_PE will reserve 3 us for MAX2829 A mode only, it is for
 314                  * better TX throughput; MAC will need 2 us to process, so the
 315                  * SIFS, DIFS can be shorter by 2 us.
 316                  */
 317         }
 318
 319         if (pDevice->bySIFS != bySIFS) {
 320                 pDevice->bySIFS = bySIFS;
 321                 VNSvOutPortB(pDevice->PortOffset + MAC_REG_SIFS, pDevice->bySIFS);
 322         }
 323         if (pDevice->byDIFS != byDIFS) {
 324                 pDevice->byDIFS = byDIFS;
 325                 VNSvOutPortB(pDevice->PortOffset + MAC_REG_DIFS, pDevice->byDIFS);
 326         }
 327         if (pDevice->byEIFS != C_EIFS) {
 328                 pDevice->byEIFS = C_EIFS;
 329                 VNSvOutPortB(pDevice->PortOffset + MAC_REG_EIFS, pDevice->byEIFS);
 330         }
 331         if (pDevice->bySlot != bySlot) {
 332                 pDevice->bySlot = bySlot;
 333                 VNSvOutPortB(pDevice->PortOffset + MAC_REG_SLOT, pDevice->bySlot);
 334
 335                 BBvSetShortSlotTime(pDevice);
 336         }
 337         if (pDevice->byCWMaxMin != byCWMaxMin) {
 338                 pDevice->byCWMaxMin = byCWMaxMin;
 339                 VNSvOutPortB(pDevice->PortOffset + MAC_REG_CWMAXMIN0, pDevice->byCWMaxMin);
 340         }
 341
 342         pDevice->byPacketType = CARDbyGetPktType(pDevice);
 343
 344         CARDvSetRSPINF(pDevice, bb_type);
 345
 346         return true;
 347 }
 348
 349 /*
 350  * Description: Sync. TSF counter to BSS
 351  *              Get TSF offset and write to HW
 352  *
 353  * Parameters:
 354  *  In:
 355  *      pDevice         - The adapter to be sync.
 356  *      byRxRate        - data rate of receive beacon
 357  *      qwBSSTimestamp  - Rx BCN's TSF
 358  *      qwLocalTSF      - Local TSF
 359  *  Out:
 360  *      none
 361  *
 362  * Return Value: none
 363  */
 364 bool CARDbUpdateTSF(struct vnt_private *pDevice, unsigned char byRxRate,
 365                     u64 qwBSSTimestamp)
 366 {
 367         u64 local_tsf;
 368         u64 qwTSFOffset = 0;
 369
 370         CARDbGetCurrentTSF(pDevice, &local_tsf);
 371
 372         if (qwBSSTimestamp != local_tsf) {
 373                 qwTSFOffset = CARDqGetTSFOffset(byRxRate, qwBSSTimestamp,
 374                                                 local_tsf);
 375                 /* adjust TSF, HW's TSF add TSF Offset reg */
 376                 VNSvOutPortD(pDevice->PortOffset + MAC_REG_TSFOFST, (u32)qwTSFOffset);
 377                 VNSvOutPortD(pDevice->PortOffset + MAC_REG_TSFOFST + 4, (u32)(qwTSFOffset >> 32));
 378                 MACvRegBitsOn(pDevice->PortOffset, MAC_REG_TFTCTL, TFTCTL_TSFSYNCEN);
 379         }
 380         return true;
 381 }
 382
 383 /*
 384  * Description: Set NIC TSF counter for first Beacon time
 385  *              Get NEXTTBTT from adjusted TSF and Beacon Interval
 386  *
 387  * Parameters:
 388  *  In:
 389  *      pDevice         - The adapter to be set.
 390  *      wBeaconInterval - Beacon Interval
 391  *  Out:
 392  *      none
 393  *
 394  * Return Value: true if succeed; otherwise false
 395  */
 396 bool CARDbSetBeaconPeriod(struct vnt_private *pDevice,
 397                           unsigned short wBeaconInterval)
 398 {
 399         u64 qwNextTBTT = 0;
 400
 401         CARDbGetCurrentTSF(pDevice, &qwNextTBTT); /* Get Local TSF counter */
 402
 403         qwNextTBTT = CARDqGetNextTBTT(qwNextTBTT, wBeaconInterval);
 404
 405         /* set HW beacon interval */
 406         VNSvOutPortW(pDevice->PortOffset + MAC_REG_BI, wBeaconInterval);
 407         pDevice->wBeaconInterval = wBeaconInterval;
 408         /* Set NextTBTT */
 409         VNSvOutPortD(pDevice->PortOffset + MAC_REG_NEXTTBTT, (u32)qwNextTBTT);
 410         VNSvOutPortD(pDevice->PortOffset + MAC_REG_NEXTTBTT + 4, (u32)(qwNextTBTT >> 32));
 411         MACvRegBitsOn(pDevice->PortOffset, MAC_REG_TFTCTL, TFTCTL_TBTTSYNCEN);
 412
 413         return true;
 414 }
 415
 416 /*
 417  * Description: Turn off Radio power
 418  *
 419  * Parameters:
 420  *  In:
 421  *      pDevice         - The adapter to be turned off
 422  *  Out:
 423  *      none
 424  *
 425  * Return Value: true if success; otherwise false
 426  */
 427 bool CARDbRadioPowerOff(struct vnt_private *pDevice)
 428 {
 429         bool bResult = true;
 430
 431         if (pDevice->bRadioOff == true)
 432                 return true;
 433
 434         switch (pDevice->byRFType) {
 435         case RF_RFMD2959:
 436                 MACvWordRegBitsOff(pDevice->PortOffset, MAC_REG_SOFTPWRCTL, SOFTPWRCTL_TXPEINV);
 437                 MACvWordRegBitsOn(pDevice->PortOffset, MAC_REG_SOFTPWRCTL, SOFTPWRCTL_SWPE1);
 438                 break;
 439
 440         case RF_AIROHA:
 441         case RF_AL2230S:
 442         case RF_AIROHA7230:
 443                 MACvWordRegBitsOff(pDevice->PortOffset, MAC_REG_SOFTPWRCTL, SOFTPWRCTL_SWPE2);
 444                 MACvWordRegBitsOff(pDevice->PortOffset, MAC_REG_SOFTPWRCTL, SOFTPWRCTL_SWPE3);
 445                 break;
 446
 447         }
 448
 449         MACvRegBitsOff(pDevice->PortOffset, MAC_REG_HOSTCR, HOSTCR_RXON);
 450
 451         BBvSetDeepSleep(pDevice, pDevice->byLocalID);
 452
 453         pDevice->bRadioOff = true;
 454         pr_debug("chester power off\n");
 455         MACvRegBitsOn(pDevice->PortOffset, MAC_REG_GPIOCTL0, LED_ACTSET);  /* LED issue */
 456         return bResult;
 457 }
 458
 459 /*
 460  * Description: Turn on Radio power
 461  *
 462  * Parameters:
 463  *  In:
 464  *      pDevice         - The adapter to be turned on
 465  *  Out:
 466  *      none
 467  *
 468  * Return Value: true if success; otherwise false
 469  */
 470 bool CARDbRadioPowerOn(struct vnt_private *pDevice)
 471 {
 472         bool bResult = true;
 473
 474         pr_debug("chester power on\n");
 475         if (pDevice->bRadioControlOff == true) {
 476                 if (pDevice->bHWRadioOff == true)
 477                         pr_debug("chester bHWRadioOff\n");
 478                 if (pDevice->bRadioControlOff == true)
 479                         pr_debug("chester bRadioControlOff\n");
 480                 return false; }
 481
 482         if (pDevice->bRadioOff == false) {
 483                 pr_debug("chester pbRadioOff\n");
 484                 return true; }
 485
 486         BBvExitDeepSleep(pDevice, pDevice->byLocalID);
 487
 488         MACvRegBitsOn(pDevice->PortOffset, MAC_REG_HOSTCR, HOSTCR_RXON);
 489
 490         switch (pDevice->byRFType) {
 491         case RF_RFMD2959:
 492                 MACvWordRegBitsOn(pDevice->PortOffset, MAC_REG_SOFTPWRCTL, SOFTPWRCTL_TXPEINV);
 493                 MACvWordRegBitsOff(pDevice->PortOffset, MAC_REG_SOFTPWRCTL, SOFTPWRCTL_SWPE1);
 494                 break;
 495
 496         case RF_AIROHA:
 497         case RF_AL2230S:
 498         case RF_AIROHA7230:
 499                 MACvWordRegBitsOn(pDevice->PortOffset, MAC_REG_SOFTPWRCTL, (SOFTPWRCTL_SWPE2 |
 500                                                                             SOFTPWRCTL_SWPE3));
 501                 break;
 502
 503         }
 504
 505         pDevice->bRadioOff = false;
 506         pr_debug("chester power on\n");
 507         MACvRegBitsOff(pDevice->PortOffset, MAC_REG_GPIOCTL0, LED_ACTSET); /* LED issue */
 508         return bResult;
 509 }
 510
 511 void
 512 CARDvSafeResetTx(
 513         struct vnt_private *pDevice
 514 )
 515 {
 516         unsigned int uu;
 517         struct vnt_tx_desc *pCurrTD;
 518
 519         /* initialize TD index */
 520         pDevice->apTailTD[0] = pDevice->apCurrTD[0] = &(pDevice->apTD0Rings[0]);
 521         pDevice->apTailTD[1] = pDevice->apCurrTD[1] = &(pDevice->apTD1Rings[0]);
 522
 523         for (uu = 0; uu < TYPE_MAXTD; uu++)
 524                 pDevice->iTDUsed[uu] = 0;
 525
 526         for (uu = 0; uu < pDevice->sOpts.nTxDescs[0]; uu++) {
 527                 pCurrTD = &(pDevice->apTD0Rings[uu]);
 528                 pCurrTD->td0.owner = OWNED_BY_HOST;
 529                 /* init all Tx Packet pointer to NULL */
 530         }
 531         for (uu = 0; uu < pDevice->sOpts.nTxDescs[1]; uu++) {
 532                 pCurrTD = &(pDevice->apTD1Rings[uu]);
 533                 pCurrTD->td0.owner = OWNED_BY_HOST;
 534                 /* init all Tx Packet pointer to NULL */
 535         }
 536
 537         /* set MAC TD pointer */
 538         MACvSetCurrTXDescAddr(TYPE_TXDMA0, pDevice->PortOffset,
 539                               (pDevice->td0_pool_dma));
 540
 541         MACvSetCurrTXDescAddr(TYPE_AC0DMA, pDevice->PortOffset,
 542                               (pDevice->td1_pool_dma));
 543
 544         /* set MAC Beacon TX pointer */
 545         MACvSetCurrBCNTxDescAddr(pDevice->PortOffset,
 546                                  (pDevice->tx_beacon_dma));
 547 }
 548
 549 /*
 550  * Description:
 551  *      Reset Rx
 552  *
 553  * Parameters:
 554  *  In:
 555  *      pDevice     - Pointer to the adapter
 556  *  Out:
 557  *      none
 558  *
 559  * Return Value: none
 560  */
 561 void
 562 CARDvSafeResetRx(
 563         struct vnt_private *pDevice
 564 )
 565 {
 566         unsigned int uu;
 567         PSRxDesc    pDesc;
 568
 569         /* initialize RD index */
 570         pDevice->pCurrRD[0] = &(pDevice->aRD0Ring[0]);
 571         pDevice->pCurrRD[1] = &(pDevice->aRD1Ring[0]);
 572
 573         /* init state, all RD is chip's */
 574         for (uu = 0; uu < pDevice->sOpts.nRxDescs0; uu++) {
 575                 pDesc = &(pDevice->aRD0Ring[uu]);
 576                 pDesc->m_rd0RD0.wResCount = cpu_to_le16(pDevice->rx_buf_sz);
 577                 pDesc->m_rd0RD0.f1Owner = OWNED_BY_NIC;
 578                 pDesc->m_rd1RD1.wReqCount = cpu_to_le16(pDevice->rx_buf_sz);
 579         }
 580
 581         /* init state, all RD is chip's */
 582         for (uu = 0; uu < pDevice->sOpts.nRxDescs1; uu++) {
 583                 pDesc = &(pDevice->aRD1Ring[uu]);
 584                 pDesc->m_rd0RD0.wResCount = cpu_to_le16(pDevice->rx_buf_sz);
 585                 pDesc->m_rd0RD0.f1Owner = OWNED_BY_NIC;
 586                 pDesc->m_rd1RD1.wReqCount = cpu_to_le16(pDevice->rx_buf_sz);
 587         }
 588
 589         /* set perPkt mode */
 590         MACvRx0PerPktMode(pDevice->PortOffset);
 591         MACvRx1PerPktMode(pDevice->PortOffset);
 592         /* set MAC RD pointer */
 593         MACvSetCurrRx0DescAddr(pDevice->PortOffset,
 594                                pDevice->rd0_pool_dma);
 595
 596         MACvSetCurrRx1DescAddr(pDevice->PortOffset,
 597                                pDevice->rd1_pool_dma);
 598 }
 599
 600 /*
 601  * Description: Get response Control frame rate in CCK mode
 602  *
 603  * Parameters:
 604  *  In:
 605  *      pDevice             - The adapter to be set
 606  *      wRateIdx            - Receiving data rate
 607  *  Out:
 608  *      none
 609  *
 610  * Return Value: response Control frame rate
 611  */
 612 static unsigned short CARDwGetCCKControlRate(struct vnt_private *pDevice,
 613                                              unsigned short wRateIdx)
 614 {
 615         unsigned int ui = (unsigned int) wRateIdx;
 616
 617         while (ui > RATE_1M) {
 618                 if (pDevice->basic_rates & ((u32)0x1 << ui))
 619                         return (unsigned short)ui;
 620
 621                 ui--;
 622         }
 623         return (unsigned short)RATE_1M;
 624 }
 625
 626 /*
 627  * Description: Get response Control frame rate in OFDM mode
 628  *
 629  * Parameters:
 630  *  In:
 631  *      pDevice             - The adapter to be set
 632  *      wRateIdx            - Receiving data rate
 633  *  Out:
 634  *      none
 635  *
 636  * Return Value: response Control frame rate
 637  */
 638 static unsigned short CARDwGetOFDMControlRate(struct vnt_private *pDevice,
 639                                               unsigned short wRateIdx)
 640 {
 641         unsigned int ui = (unsigned int) wRateIdx;
 642
 643         pr_debug("BASIC RATE: %X\n", pDevice->basic_rates);
 644
 645         if (!CARDbIsOFDMinBasicRate((void *)pDevice)) {
 646                 pr_debug("CARDwGetOFDMControlRate:(NO OFDM) %d\n", wRateIdx);
 647                 if (wRateIdx > RATE_24M)
 648                         wRateIdx = RATE_24M;
 649                 return wRateIdx;
 650         }
 651         while (ui > RATE_11M) {
 652                 if (pDevice->basic_rates & ((u32)0x1 << ui)) {
 653                         pr_debug("CARDwGetOFDMControlRate : %d\n", ui);
 654                         return (unsigned short)ui;
 655                 }
 656                 ui--;
 657         }
 658         pr_debug("CARDwGetOFDMControlRate: 6M\n");
 659         return (unsigned short)RATE_24M;
 660 }
 661
 662 /*
 663  * Description: Set RSPINF
 664  *
 665  * Parameters:
 666  *  In:
 667  *      pDevice             - The adapter to be set
 668  *  Out:
 669  *      none
 670  *
 671  * Return Value: None.
 672  */
 673 void CARDvSetRSPINF(struct vnt_private *pDevice, u8 bb_type)
 674 {
 675         union vnt_phy_field_swap phy;
 676         unsigned char byTxRate, byRsvTime;      /* For OFDM */
 677         unsigned long flags;
 678
 679         spin_lock_irqsave(&pDevice->lock, flags);
 680
 681         /* Set to Page1 */
 682         MACvSelectPage1(pDevice->PortOffset);
 683
 684         /* RSPINF_b_1 */
 685         vnt_get_phy_field(pDevice, 14,
 686                           CARDwGetCCKControlRate(pDevice, RATE_1M),
 687                           PK_TYPE_11B, &phy.field_read);
 688
 689          /* swap over to get correct write order */
 690         swap(phy.swap[0], phy.swap[1]);
 691
 692         VNSvOutPortD(pDevice->PortOffset + MAC_REG_RSPINF_B_1, phy.field_write);
 693
 694         /* RSPINF_b_2 */
 695         vnt_get_phy_field(pDevice, 14,
 696                           CARDwGetCCKControlRate(pDevice, RATE_2M),
 697                           PK_TYPE_11B, &phy.field_read);
 698
 699         swap(phy.swap[0], phy.swap[1]);
 700
 701         VNSvOutPortD(pDevice->PortOffset + MAC_REG_RSPINF_B_2, phy.field_write);
 702
 703         /* RSPINF_b_5 */
 704         vnt_get_phy_field(pDevice, 14,
 705                           CARDwGetCCKControlRate(pDevice, RATE_5M),
 706                           PK_TYPE_11B, &phy.field_read);
 707
 708         swap(phy.swap[0], phy.swap[1]);
 709
 710         VNSvOutPortD(pDevice->PortOffset + MAC_REG_RSPINF_B_5, phy.field_write);
 711
 712         /* RSPINF_b_11 */
 713         vnt_get_phy_field(pDevice, 14,
 714                           CARDwGetCCKControlRate(pDevice, RATE_11M),
 715                           PK_TYPE_11B, &phy.field_read);
 716
 717         swap(phy.swap[0], phy.swap[1]);
 718
 719         VNSvOutPortD(pDevice->PortOffset + MAC_REG_RSPINF_B_11, phy.field_write);
 720
 721         /* RSPINF_a_6 */
 722         s_vCalculateOFDMRParameter(RATE_6M,
 723                                    bb_type,
 724                                    &byTxRate,
 725                                    &byRsvTime);
 726         VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_6, MAKEWORD(byTxRate, byRsvTime));
 727         /* RSPINF_a_9 */
 728         s_vCalculateOFDMRParameter(RATE_9M,
 729                                    bb_type,
 730                                    &byTxRate,
 731                                    &byRsvTime);
 732         VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_9, MAKEWORD(byTxRate, byRsvTime));
 733         /* RSPINF_a_12 */
 734         s_vCalculateOFDMRParameter(RATE_12M,
 735                                    bb_type,
 736                                    &byTxRate,
 737                                    &byRsvTime);
 738         VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_12, MAKEWORD(byTxRate, byRsvTime));
 739         /* RSPINF_a_18 */
 740         s_vCalculateOFDMRParameter(RATE_18M,
 741                                    bb_type,
 742                                    &byTxRate,
 743                                    &byRsvTime);
 744         VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_18, MAKEWORD(byTxRate, byRsvTime));
 745         /* RSPINF_a_24 */
 746         s_vCalculateOFDMRParameter(RATE_24M,
 747                                    bb_type,
 748                                    &byTxRate,
 749                                    &byRsvTime);
 750         VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_24, MAKEWORD(byTxRate, byRsvTime));
 751         /* RSPINF_a_36 */
 752         s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate((void *)pDevice, RATE_36M),
 753                                    bb_type,
 754                                    &byTxRate,
 755                                    &byRsvTime);
 756         VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_36, MAKEWORD(byTxRate, byRsvTime));
 757         /* RSPINF_a_48 */
 758         s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate((void *)pDevice, RATE_48M),
 759                                    bb_type,
 760                                    &byTxRate,
 761                                    &byRsvTime);
 762         VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_48, MAKEWORD(byTxRate, byRsvTime));
 763         /* RSPINF_a_54 */
 764         s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate((void *)pDevice, RATE_54M),
 765                                    bb_type,
 766                                    &byTxRate,
 767                                    &byRsvTime);
 768         VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_54, MAKEWORD(byTxRate, byRsvTime));
 769         /* RSPINF_a_72 */
 770         s_vCalculateOFDMRParameter(CARDwGetOFDMControlRate((void *)pDevice, RATE_54M),
 771                                    bb_type,
 772                                    &byTxRate,
 773                                    &byRsvTime);
 774         VNSvOutPortW(pDevice->PortOffset + MAC_REG_RSPINF_A_72, MAKEWORD(byTxRate, byRsvTime));
 775         /* Set to Page0 */
 776         MACvSelectPage0(pDevice->PortOffset);
 777
 778         spin_unlock_irqrestore(&pDevice->lock, flags);
 779 }
 780
 781 void CARDvUpdateBasicTopRate(struct vnt_private *pDevice)
 782 {
 783         unsigned char byTopOFDM = RATE_24M, byTopCCK = RATE_1M;
 784         unsigned char ii;
 785
 786         /* Determines the highest basic rate. */
 787         for (ii = RATE_54M; ii >= RATE_6M; ii--) {
 788                 if ((pDevice->basic_rates) & ((u32)(1 << ii))) {
 789                         byTopOFDM = ii;
 790                         break;
 791                 }
 792         }
 793         pDevice->byTopOFDMBasicRate = byTopOFDM;
 794
 795         for (ii = RATE_11M;; ii--) {
 796                 if ((pDevice->basic_rates) & ((u32)(1 << ii))) {
 797                         byTopCCK = ii;
 798                         break;
 799                 }
 800                 if (ii == RATE_1M)
 801                         break;
 802         }
 803         pDevice->byTopCCKBasicRate = byTopCCK;
 804 }
 805
 806 bool CARDbIsOFDMinBasicRate(struct vnt_private *pDevice)
 807 {
 808         int ii;
 809
 810         for (ii = RATE_54M; ii >= RATE_6M; ii--) {
 811                 if ((pDevice->basic_rates) & ((u32)(1 << ii)))
 812                         return true;
 813         }
 814         return false;
 815 }
 816
 817 unsigned char CARDbyGetPktType(struct vnt_private *pDevice)
 818 {
 819
 820         if (pDevice->byBBType == BB_TYPE_11A || pDevice->byBBType == BB_TYPE_11B)
 821                 return (unsigned char)pDevice->byBBType;
 822         else if (CARDbIsOFDMinBasicRate((void *)pDevice))
 823                 return PK_TYPE_11GA;
 824         else
 825                 return PK_TYPE_11GB;
 826 }
 827
 828 /*
 829  * Description: Set NIC Loopback mode
 830  *
 831  * Parameters:
 832  *  In:
 833  *      pDevice         - The adapter to be set
 834  *      wLoopbackMode   - Loopback mode to be set
 835  *  Out:
 836  *      none
 837  *
 838  * Return Value: none
 839  */
 840 void CARDvSetLoopbackMode(struct vnt_private *priv, unsigned short wLoopbackMode)
 841 {
 842         void __iomem *dwIoBase = priv->PortOffset;
 843
 844         switch (wLoopbackMode) {
 845         case CARD_LB_NONE:
 846         case CARD_LB_MAC:
 847         case CARD_LB_PHY:
 848                 break;
 849         default:
 850                 break;
 851         }
 852         /* set MAC loopback */
 853         MACvSetLoopbackMode(dwIoBase, LOBYTE(wLoopbackMode));
 854         /* set Baseband loopback */
 855 }
 856
 857 /*
 858  * Description: Software Reset NIC
 859  *
 860  * Parameters:
 861  *  In:
 862  *      pDevice         - The adapter to be reset
 863  *  Out:
 864  *      none
 865  *
 866  * Return Value: none
 867  */
 868 bool CARDbSoftwareReset(struct vnt_private *pDevice)
 869 {
 870
 871         /* reset MAC */
 872         if (!MACbSafeSoftwareReset(pDevice->PortOffset))
 873                 return false;
 874
 875         return true;
 876 }
 877
 878 /*
 879  * Description: Calculate TSF offset of two TSF input
 880  *              Get TSF Offset from RxBCN's TSF and local TSF
 881  *
 882  * Parameters:
 883  *  In:
 884  *      pDevice         - The adapter to be sync.
 885  *      qwTSF1          - Rx BCN's TSF
 886  *      qwTSF2          - Local TSF
 887  *  Out:
 888  *      none
 889  *
 890  * Return Value: TSF Offset value
 891  */
 892 u64 CARDqGetTSFOffset(unsigned char byRxRate, u64 qwTSF1, u64 qwTSF2)
 893 {
 894         u64 qwTSFOffset = 0;
 895         unsigned short wRxBcnTSFOffst = 0;
 896
 897         wRxBcnTSFOffst = cwRXBCNTSFOff[byRxRate%MAX_RATE];
 898
 899         qwTSF2 += (u64)wRxBcnTSFOffst;
 900
 901         qwTSFOffset = qwTSF1 - qwTSF2;
 902
 903         return qwTSFOffset;
 904 }
 905
 906 /*
 907  * Description: Read NIC TSF counter
 908  *              Get local TSF counter
 909  *
 910  * Parameters:
 911  *  In:
 912  *      pDevice         - The adapter to be read
 913  *  Out:
 914  *      qwCurrTSF       - Current TSF counter
 915  *
 916  * Return Value: true if success; otherwise false
 917  */
 918 bool CARDbGetCurrentTSF(struct vnt_private *priv, u64 *pqwCurrTSF)
 919 {
 920         void __iomem *dwIoBase = priv->PortOffset;
 921         unsigned short ww;
 922         unsigned char byData;
 923
 924         MACvRegBitsOn(dwIoBase, MAC_REG_TFTCTL, TFTCTL_TSFCNTRRD);
 925         for (ww = 0; ww < W_MAX_TIMEOUT; ww++) {
 926                 VNSvInPortB(dwIoBase + MAC_REG_TFTCTL, &byData);
 927                 if (!(byData & TFTCTL_TSFCNTRRD))
 928                         break;
 929         }
 930         if (ww == W_MAX_TIMEOUT)
 931                 return false;
 932         VNSvInPortD(dwIoBase + MAC_REG_TSFCNTR, (u32 *)pqwCurrTSF);
 933         VNSvInPortD(dwIoBase + MAC_REG_TSFCNTR + 4, (u32 *)pqwCurrTSF + 1);
 934
 935         return true;
 936 }
 937
 938 /*
 939  * Description: Read NIC TSF counter
 940  *              Get NEXTTBTT from adjusted TSF and Beacon Interval
 941  *
 942  * Parameters:
 943  *  In:
 944  *      qwTSF           - Current TSF counter
 945  *      wbeaconInterval - Beacon Interval
 946  *  Out:
 947  *      qwCurrTSF       - Current TSF counter
 948  *
 949  * Return Value: TSF value of next Beacon
 950  */
 951 u64 CARDqGetNextTBTT(u64 qwTSF, unsigned short wBeaconInterval)
 952 {
 953         u32 beacon_int;
 954
 955         beacon_int = wBeaconInterval * 1024;
 956         if (beacon_int) {
 957                 do_div(qwTSF, beacon_int);
 958                 qwTSF += 1;
 959                 qwTSF *= beacon_int;
 960         }
 961
 962         return qwTSF;
 963 }
 964
 965 /*
 966  * Description: Set NIC TSF counter for first Beacon time
 967  *              Get NEXTTBTT from adjusted TSF and Beacon Interval
 968  *
 969  * Parameters:
 970  *  In:
 971  *      dwIoBase        - IO Base
 972  *      wBeaconInterval - Beacon Interval
 973  *  Out:
 974  *      none
 975  *
 976  * Return Value: none
 977  */
 978 void CARDvSetFirstNextTBTT(struct vnt_private *priv, unsigned short wBeaconInterval)
 979 {
 980         void __iomem *dwIoBase = priv->PortOffset;
 981         u64 qwNextTBTT = 0;
 982
 983         CARDbGetCurrentTSF(priv, &qwNextTBTT); /* Get Local TSF counter */
 984
 985         qwNextTBTT = CARDqGetNextTBTT(qwNextTBTT, wBeaconInterval);
 986         /* Set NextTBTT */
 987         VNSvOutPortD(dwIoBase + MAC_REG_NEXTTBTT, (u32)qwNextTBTT);
 988         VNSvOutPortD(dwIoBase + MAC_REG_NEXTTBTT + 4, (u32)(qwNextTBTT >> 32));
 989         MACvRegBitsOn(dwIoBase, MAC_REG_TFTCTL, TFTCTL_TBTTSYNCEN);
 990 }
 991
 992 /*
 993  * Description: Sync NIC TSF counter for Beacon time
 994  *              Get NEXTTBTT and write to HW
 995  *
 996  * Parameters:
 997  *  In:
 998  *      pDevice         - The adapter to be set
 999  *      qwTSF           - Current TSF counter
1000  *      wBeaconInterval - Beacon Interval
1001  *  Out:
1002  *      none
1003  *
1004  * Return Value: none
1005  */
1006 void CARDvUpdateNextTBTT(struct vnt_private *priv, u64 qwTSF, unsigned short wBeaconInterval)
1007 {
1008         void __iomem *dwIoBase = priv->PortOffset;
1009
1010         qwTSF = CARDqGetNextTBTT(qwTSF, wBeaconInterval);
1011         /* Set NextTBTT */
1012         VNSvOutPortD(dwIoBase + MAC_REG_NEXTTBTT, (u32)qwTSF);
1013         VNSvOutPortD(dwIoBase + MAC_REG_NEXTTBTT + 4, (u32)(qwTSF >> 32));
1014         MACvRegBitsOn(dwIoBase, MAC_REG_TFTCTL, TFTCTL_TBTTSYNCEN);
1015         pr_debug("Card:Update Next TBTT[%8llx]\n", qwTSF);
1016 }