drivers/staging/vt6655/device_main.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: device_main.c
   7  *
   8  * Purpose: driver entry for initial, open, close, tx and rx.
   9  *
  10  * Author: Lyndon Chen
  11  *
  12  * Date: Jan 8, 2003
  13  *
  14  * Functions:
  15  *
  16  *   vt6655_probe - module initial (insmod) driver entry
  17  *   vt6655_remove - module remove entry
  18  *   device_free_info - device structure resource free function
  19  *   device_print_info - print out resource
  20  *   device_rx_srv - rx service function
  21  *   device_alloc_rx_buf - rx buffer pre-allocated function
  22  *   device_free_rx_buf - free rx buffer function
  23  *   device_free_tx_buf - free tx buffer function
  24  *   device_init_rd0_ring- initial rd dma0 ring
  25  *   device_init_rd1_ring- initial rd dma1 ring
  26  *   device_init_td0_ring- initial tx dma0 ring buffer
  27  *   device_init_td1_ring- initial tx dma1 ring buffer
  28  *   device_init_registers- initial MAC & BBP & RF internal registers.
  29  *   device_init_rings- initial tx/rx ring buffer
  30  *   device_free_rings- free all allocated ring buffer
  31  *   device_tx_srv- tx interrupt service function
  32  *
  33  * Revision History:
  34  */
  35 #undef __NO_VERSION__
  36
  37 #include <linux/file.h>
  38 #include "device.h"
  39 #include "card.h"
  40 #include "channel.h"
  41 #include "baseband.h"
  42 #include "mac.h"
  43 #include "power.h"
  44 #include "rxtx.h"
  45 #include "dpc.h"
  46 #include "rf.h"
  47 #include <linux/delay.h>
  48 #include <linux/kthread.h>
  49 #include <linux/slab.h>
  50
  51 /*---------------------  Static Definitions -------------------------*/
  52 /*
  53  * Define module options
  54  */
  55 MODULE_AUTHOR("VIA Networking Technologies, Inc., <lyndonchen@vntek.com.tw>");
  56 MODULE_LICENSE("GPL");
  57 MODULE_DESCRIPTION("VIA Networking Solomon-A/B/G Wireless LAN Adapter Driver");
  58
  59 #define DEVICE_PARAM(N, D)
  60
  61 #define RX_DESC_MIN0     16
  62 #define RX_DESC_MAX0     128
  63 #define RX_DESC_DEF0     32
  64 DEVICE_PARAM(RxDescriptors0, "Number of receive descriptors0");
  65
  66 #define RX_DESC_MIN1     16
  67 #define RX_DESC_MAX1     128
  68 #define RX_DESC_DEF1     32
  69 DEVICE_PARAM(RxDescriptors1, "Number of receive descriptors1");
  70
  71 #define TX_DESC_MIN0     16
  72 #define TX_DESC_MAX0     128
  73 #define TX_DESC_DEF0     32
  74 DEVICE_PARAM(TxDescriptors0, "Number of transmit descriptors0");
  75
  76 #define TX_DESC_MIN1     16
  77 #define TX_DESC_MAX1     128
  78 #define TX_DESC_DEF1     64
  79 DEVICE_PARAM(TxDescriptors1, "Number of transmit descriptors1");
  80
  81 #define INT_WORKS_DEF   20
  82 #define INT_WORKS_MIN   10
  83 #define INT_WORKS_MAX   64
  84
  85 DEVICE_PARAM(int_works, "Number of packets per interrupt services");
  86
  87 #define RTS_THRESH_DEF     2347
  88
  89 #define FRAG_THRESH_DEF     2346
  90
  91 #define SHORT_RETRY_MIN     0
  92 #define SHORT_RETRY_MAX     31
  93 #define SHORT_RETRY_DEF     8
  94
  95 DEVICE_PARAM(ShortRetryLimit, "Short frame retry limits");
  96
  97 #define LONG_RETRY_MIN     0
  98 #define LONG_RETRY_MAX     15
  99 #define LONG_RETRY_DEF     4
 100
 101 DEVICE_PARAM(LongRetryLimit, "long frame retry limits");
 102
 103 /* BasebandType[] baseband type selected
 104  * 0: indicate 802.11a type
 105  * 1: indicate 802.11b type
 106  * 2: indicate 802.11g type
 107  */
 108 #define BBP_TYPE_MIN     0
 109 #define BBP_TYPE_MAX     2
 110 #define BBP_TYPE_DEF     2
 111
 112 DEVICE_PARAM(BasebandType, "baseband type");
 113
 114 /*
 115  * Static vars definitions
 116  */
 117 static const struct pci_device_id vt6655_pci_id_table[] = {
 118         { PCI_VDEVICE(VIA, 0x3253) },
 119         { 0, }
 120 };
 121
 122 /*---------------------  Static Functions  --------------------------*/
 123
 124 static int  vt6655_probe(struct pci_dev *pcid, const struct pci_device_id *ent);
 125 static void device_free_info(struct vnt_private *priv);
 126 static void device_print_info(struct vnt_private *priv);
 127
 128 static int device_init_rd0_ring(struct vnt_private *priv);
 129 static int device_init_rd1_ring(struct vnt_private *priv);
 130 static int device_init_td0_ring(struct vnt_private *priv);
 131 static int device_init_td1_ring(struct vnt_private *priv);
 132
 133 static int  device_rx_srv(struct vnt_private *priv, unsigned int idx);
 134 static int  device_tx_srv(struct vnt_private *priv, unsigned int idx);
 135 static bool device_alloc_rx_buf(struct vnt_private *, struct vnt_rx_desc *);
 136 static void device_free_rx_buf(struct vnt_private *priv, struct vnt_rx_desc *rd);
 137 static void device_init_registers(struct vnt_private *priv);
 138 static void device_free_tx_buf(struct vnt_private *, struct vnt_tx_desc *);
 139 static void device_free_td0_ring(struct vnt_private *priv);
 140 static void device_free_td1_ring(struct vnt_private *priv);
 141 static void device_free_rd0_ring(struct vnt_private *priv);
 142 static void device_free_rd1_ring(struct vnt_private *priv);
 143 static void device_free_rings(struct vnt_private *priv);
 144
 145 /*---------------------  Export Variables  --------------------------*/
 146
 147 /*---------------------  Export Functions  --------------------------*/
 148
 149 static void vt6655_remove(struct pci_dev *pcid)
 150 {
 151         struct vnt_private *priv = pci_get_drvdata(pcid);
 152
 153         if (!priv)
 154                 return;
 155         device_free_info(priv);
 156 }
 157
 158 static void device_get_options(struct vnt_private *priv)
 159 {
 160         struct vnt_options *opts = &priv->opts;
 161
 162         opts->rx_descs0 = RX_DESC_DEF0;
 163         opts->rx_descs1 = RX_DESC_DEF1;
 164         opts->tx_descs[0] = TX_DESC_DEF0;
 165         opts->tx_descs[1] = TX_DESC_DEF1;
 166         opts->int_works = INT_WORKS_DEF;
 167
 168         opts->short_retry = SHORT_RETRY_DEF;
 169         opts->long_retry = LONG_RETRY_DEF;
 170         opts->bbp_type = BBP_TYPE_DEF;
 171 }
 172
 173 static void
 174 device_set_options(struct vnt_private *priv)
 175 {
 176         priv->byShortRetryLimit = priv->opts.short_retry;
 177         priv->byLongRetryLimit = priv->opts.long_retry;
 178         priv->byBBType = priv->opts.bbp_type;
 179         priv->byPacketType = priv->byBBType;
 180         priv->byAutoFBCtrl = AUTO_FB_0;
 181         priv->bUpdateBBVGA = true;
 182         priv->byPreambleType = 0;
 183
 184         pr_debug(" byShortRetryLimit= %d\n", (int)priv->byShortRetryLimit);
 185         pr_debug(" byLongRetryLimit= %d\n", (int)priv->byLongRetryLimit);
 186         pr_debug(" byPreambleType= %d\n", (int)priv->byPreambleType);
 187         pr_debug(" byShortPreamble= %d\n", (int)priv->byShortPreamble);
 188         pr_debug(" byBBType= %d\n", (int)priv->byBBType);
 189 }
 190
 191 /*
 192  * Initialisation of MAC & BBP registers
 193  */
 194
 195 static void device_init_registers(struct vnt_private *priv)
 196 {
 197         unsigned long flags;
 198         unsigned int ii;
 199         unsigned char byValue;
 200         unsigned char byCCKPwrdBm = 0;
 201         unsigned char byOFDMPwrdBm = 0;
 202
 203         MACbShutdown(priv);
 204         BBvSoftwareReset(priv);
 205
 206         /* Do MACbSoftwareReset in MACvInitialize */
 207         MACbSoftwareReset(priv);
 208
 209         priv->bAES = false;
 210
 211         /* Only used in 11g type, sync with ERP IE */
 212         priv->bProtectMode = false;
 213
 214         priv->bNonERPPresent = false;
 215         priv->bBarkerPreambleMd = false;
 216         priv->wCurrentRate = RATE_1M;
 217         priv->byTopOFDMBasicRate = RATE_24M;
 218         priv->byTopCCKBasicRate = RATE_1M;
 219
 220         /* init MAC */
 221         MACvInitialize(priv);
 222
 223         /* Get Local ID */
 224         VNSvInPortB(priv->PortOffset + MAC_REG_LOCALID, &priv->byLocalID);
 225
 226         spin_lock_irqsave(&priv->lock, flags);
 227
 228         SROMvReadAllContents(priv->PortOffset, priv->abyEEPROM);
 229
 230         spin_unlock_irqrestore(&priv->lock, flags);
 231
 232         /* Get Channel range */
 233         priv->byMinChannel = 1;
 234         priv->byMaxChannel = CB_MAX_CHANNEL;
 235
 236         /* Get Antena */
 237         byValue = SROMbyReadEmbedded(priv->PortOffset, EEP_OFS_ANTENNA);
 238         if (byValue & EEP_ANTINV)
 239                 priv->bTxRxAntInv = true;
 240         else
 241                 priv->bTxRxAntInv = false;
 242
 243         byValue &= (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
 244         /* if not set default is All */
 245         if (byValue == 0)
 246                 byValue = (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN);
 247
 248         if (byValue == (EEP_ANTENNA_AUX | EEP_ANTENNA_MAIN)) {
 249                 priv->byAntennaCount = 2;
 250                 priv->byTxAntennaMode = ANT_B;
 251                 priv->dwTxAntennaSel = 1;
 252                 priv->dwRxAntennaSel = 1;
 253
 254                 if (priv->bTxRxAntInv)
 255                         priv->byRxAntennaMode = ANT_A;
 256                 else
 257                         priv->byRxAntennaMode = ANT_B;
 258         } else  {
 259                 priv->byAntennaCount = 1;
 260                 priv->dwTxAntennaSel = 0;
 261                 priv->dwRxAntennaSel = 0;
 262
 263                 if (byValue & EEP_ANTENNA_AUX) {
 264                         priv->byTxAntennaMode = ANT_A;
 265
 266                         if (priv->bTxRxAntInv)
 267                                 priv->byRxAntennaMode = ANT_B;
 268                         else
 269                                 priv->byRxAntennaMode = ANT_A;
 270                 } else {
 271                         priv->byTxAntennaMode = ANT_B;
 272
 273                         if (priv->bTxRxAntInv)
 274                                 priv->byRxAntennaMode = ANT_A;
 275                         else
 276                                 priv->byRxAntennaMode = ANT_B;
 277                 }
 278         }
 279
 280         /* Set initial antenna mode */
 281         BBvSetTxAntennaMode(priv, priv->byTxAntennaMode);
 282         BBvSetRxAntennaMode(priv, priv->byRxAntennaMode);
 283
 284         /* zonetype initial */
 285         priv->byOriginalZonetype = priv->abyEEPROM[EEP_OFS_ZONETYPE];
 286
 287         if (!priv->bZoneRegExist)
 288                 priv->byZoneType = priv->abyEEPROM[EEP_OFS_ZONETYPE];
 289
 290         pr_debug("priv->byZoneType = %x\n", priv->byZoneType);
 291
 292         /* Init RF module */
 293         RFbInit(priv);
 294
 295         /* Get Desire Power Value */
 296         priv->byCurPwr = 0xFF;
 297         priv->byCCKPwr = SROMbyReadEmbedded(priv->PortOffset, EEP_OFS_PWR_CCK);
 298         priv->byOFDMPwrG = SROMbyReadEmbedded(priv->PortOffset, EEP_OFS_PWR_OFDMG);
 299
 300         /* Load power Table */
 301         for (ii = 0; ii < CB_MAX_CHANNEL_24G; ii++) {
 302                 priv->abyCCKPwrTbl[ii + 1] =
 303                         SROMbyReadEmbedded(priv->PortOffset,
 304                                            (unsigned char)(ii + EEP_OFS_CCK_PWR_TBL));
 305                 if (priv->abyCCKPwrTbl[ii + 1] == 0)
 306                         priv->abyCCKPwrTbl[ii + 1] = priv->byCCKPwr;
 307
 308                 priv->abyOFDMPwrTbl[ii + 1] =
 309                         SROMbyReadEmbedded(priv->PortOffset,
 310                                            (unsigned char)(ii + EEP_OFS_OFDM_PWR_TBL));
 311                 if (priv->abyOFDMPwrTbl[ii + 1] == 0)
 312                         priv->abyOFDMPwrTbl[ii + 1] = priv->byOFDMPwrG;
 313
 314                 priv->abyCCKDefaultPwr[ii + 1] = byCCKPwrdBm;
 315                 priv->abyOFDMDefaultPwr[ii + 1] = byOFDMPwrdBm;
 316         }
 317
 318         /* recover 12,13 ,14channel for EUROPE by 11 channel */
 319         for (ii = 11; ii < 14; ii++) {
 320                 priv->abyCCKPwrTbl[ii] = priv->abyCCKPwrTbl[10];
 321                 priv->abyOFDMPwrTbl[ii] = priv->abyOFDMPwrTbl[10];
 322         }
 323
 324         /* Load OFDM A Power Table */
 325         for (ii = 0; ii < CB_MAX_CHANNEL_5G; ii++) {
 326                 priv->abyOFDMPwrTbl[ii + CB_MAX_CHANNEL_24G + 1] =
 327                         SROMbyReadEmbedded(priv->PortOffset,
 328                                            (unsigned char)(ii + EEP_OFS_OFDMA_PWR_TBL));
 329
 330                 priv->abyOFDMDefaultPwr[ii + CB_MAX_CHANNEL_24G + 1] =
 331                         SROMbyReadEmbedded(priv->PortOffset,
 332                                            (unsigned char)(ii + EEP_OFS_OFDMA_PWR_dBm));
 333         }
 334
 335         if (priv->byLocalID > REV_ID_VT3253_B1) {
 336                 MACvSelectPage1(priv->PortOffset);
 337
 338                 VNSvOutPortB(priv->PortOffset + MAC_REG_MSRCTL + 1,
 339                              (MSRCTL1_TXPWR | MSRCTL1_CSAPAREN));
 340
 341                 MACvSelectPage0(priv->PortOffset);
 342         }
 343
 344         /* use relative tx timeout and 802.11i D4 */
 345         MACvWordRegBitsOn(priv->PortOffset,
 346                           MAC_REG_CFG, (CFG_TKIPOPT | CFG_NOTXTIMEOUT));
 347
 348         /* set performance parameter by registry */
 349         MACvSetShortRetryLimit(priv, priv->byShortRetryLimit);
 350         MACvSetLongRetryLimit(priv, priv->byLongRetryLimit);
 351
 352         /* reset TSF counter */
 353         VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTRST);
 354         /* enable TSF counter */
 355         VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
 356
 357         /* initialize BBP registers */
 358         BBbVT3253Init(priv);
 359
 360         if (priv->bUpdateBBVGA) {
 361                 priv->byBBVGACurrent = priv->abyBBVGA[0];
 362                 priv->byBBVGANew = priv->byBBVGACurrent;
 363                 BBvSetVGAGainOffset(priv, priv->abyBBVGA[0]);
 364         }
 365
 366         BBvSetRxAntennaMode(priv, priv->byRxAntennaMode);
 367         BBvSetTxAntennaMode(priv, priv->byTxAntennaMode);
 368
 369         /* Set BB and packet type at the same time. */
 370         /* Set Short Slot Time, xIFS, and RSPINF. */
 371         priv->wCurrentRate = RATE_54M;
 372
 373         priv->bRadioOff = false;
 374
 375         priv->byRadioCtl = SROMbyReadEmbedded(priv->PortOffset,
 376                                                  EEP_OFS_RADIOCTL);
 377         priv->bHWRadioOff = false;
 378
 379         if (priv->byRadioCtl & EEP_RADIOCTL_ENABLE) {
 380                 /* Get GPIO */
 381                 MACvGPIOIn(priv->PortOffset, &priv->byGPIO);
 382
 383                 if (((priv->byGPIO & GPIO0_DATA) &&
 384                      !(priv->byRadioCtl & EEP_RADIOCTL_INV)) ||
 385                      (!(priv->byGPIO & GPIO0_DATA) &&
 386                      (priv->byRadioCtl & EEP_RADIOCTL_INV)))
 387                         priv->bHWRadioOff = true;
 388         }
 389
 390         if (priv->bHWRadioOff || priv->bRadioControlOff)
 391                 CARDbRadioPowerOff(priv);
 392
 393         /* get Permanent network address */
 394         SROMvReadEtherAddress(priv->PortOffset, priv->abyCurrentNetAddr);
 395         pr_debug("Network address = %pM\n", priv->abyCurrentNetAddr);
 396
 397         /* reset Tx pointer */
 398         CARDvSafeResetRx(priv);
 399         /* reset Rx pointer */
 400         CARDvSafeResetTx(priv);
 401
 402         if (priv->byLocalID <= REV_ID_VT3253_A1)
 403                 MACvRegBitsOn(priv->PortOffset, MAC_REG_RCR, RCR_WPAERR);
 404
 405         /* Turn On Rx DMA */
 406         MACvReceive0(priv->PortOffset);
 407         MACvReceive1(priv->PortOffset);
 408
 409         /* start the adapter */
 410         MACvStart(priv->PortOffset);
 411 }
 412
 413 static void device_print_info(struct vnt_private *priv)
 414 {
 415         dev_info(&priv->pcid->dev, "MAC=%pM IO=0x%lx Mem=0x%lx IRQ=%d\n",
 416                  priv->abyCurrentNetAddr, (unsigned long)priv->ioaddr,
 417                  (unsigned long)priv->PortOffset, priv->pcid->irq);
 418 }
 419
 420 static void device_free_info(struct vnt_private *priv)
 421 {
 422         if (!priv)
 423                 return;
 424
 425         if (priv->mac_hw)
 426                 ieee80211_unregister_hw(priv->hw);
 427
 428         if (priv->PortOffset)
 429                 iounmap(priv->PortOffset);
 430
 431         if (priv->pcid)
 432                 pci_release_regions(priv->pcid);
 433
 434         if (priv->hw)
 435                 ieee80211_free_hw(priv->hw);
 436 }
 437
 438 static bool device_init_rings(struct vnt_private *priv)
 439 {
 440         void *vir_pool;
 441
 442         /*allocate all RD/TD rings a single pool*/
 443         vir_pool = dma_alloc_coherent(&priv->pcid->dev,
 444                                       priv->opts.rx_descs0 * sizeof(struct vnt_rx_desc) + priv->opts.rx_descs1 * sizeof(struct vnt_rx_desc) + priv->opts.tx_descs[0] * sizeof(struct vnt_tx_desc) + priv->opts.tx_descs[1] * sizeof(struct vnt_tx_desc),
 445                                       &priv->pool_dma, GFP_ATOMIC);
 446         if (!vir_pool) {
 447                 dev_err(&priv->pcid->dev, "allocate desc dma memory failed\n");
 448                 return false;
 449         }
 450
 451         priv->aRD0Ring = vir_pool;
 452         priv->aRD1Ring = vir_pool +
 453                 priv->opts.rx_descs0 * sizeof(struct vnt_rx_desc);
 454
 455         priv->rd0_pool_dma = priv->pool_dma;
 456         priv->rd1_pool_dma = priv->rd0_pool_dma +
 457                 priv->opts.rx_descs0 * sizeof(struct vnt_rx_desc);
 458
 459         priv->tx0_bufs = dma_alloc_coherent(&priv->pcid->dev,
 460                                             priv->opts.tx_descs[0] * PKT_BUF_SZ + priv->opts.tx_descs[1] * PKT_BUF_SZ + CB_BEACON_BUF_SIZE + CB_MAX_BUF_SIZE,
 461                                             &priv->tx_bufs_dma0, GFP_ATOMIC);
 462         if (!priv->tx0_bufs) {
 463                 dev_err(&priv->pcid->dev, "allocate buf dma memory failed\n");
 464
 465                 dma_free_coherent(&priv->pcid->dev,
 466                                   priv->opts.rx_descs0 * sizeof(struct vnt_rx_desc) +
 467                                   priv->opts.rx_descs1 * sizeof(struct vnt_rx_desc) +
 468                                   priv->opts.tx_descs[0] * sizeof(struct vnt_tx_desc) +
 469                                   priv->opts.tx_descs[1] * sizeof(struct vnt_tx_desc),
 470                                   vir_pool, priv->pool_dma);
 471                 return false;
 472         }
 473
 474         priv->td0_pool_dma = priv->rd1_pool_dma +
 475                 priv->opts.rx_descs1 * sizeof(struct vnt_rx_desc);
 476
 477         priv->td1_pool_dma = priv->td0_pool_dma +
 478                 priv->opts.tx_descs[0] * sizeof(struct vnt_tx_desc);
 479
 480         /* vir_pool: pvoid type */
 481         priv->apTD0Rings = vir_pool
 482                 + priv->opts.rx_descs0 * sizeof(struct vnt_rx_desc)
 483                 + priv->opts.rx_descs1 * sizeof(struct vnt_rx_desc);
 484
 485         priv->apTD1Rings = vir_pool
 486                 + priv->opts.rx_descs0 * sizeof(struct vnt_rx_desc)
 487                 + priv->opts.rx_descs1 * sizeof(struct vnt_rx_desc)
 488                 + priv->opts.tx_descs[0] * sizeof(struct vnt_tx_desc);
 489
 490         priv->tx1_bufs = priv->tx0_bufs +
 491                 priv->opts.tx_descs[0] * PKT_BUF_SZ;
 492
 493         priv->tx_beacon_bufs = priv->tx1_bufs +
 494                 priv->opts.tx_descs[1] * PKT_BUF_SZ;
 495
 496         priv->pbyTmpBuff = priv->tx_beacon_bufs +
 497                 CB_BEACON_BUF_SIZE;
 498
 499         priv->tx_bufs_dma1 = priv->tx_bufs_dma0 +
 500                 priv->opts.tx_descs[0] * PKT_BUF_SZ;
 501
 502         priv->tx_beacon_dma = priv->tx_bufs_dma1 +
 503                 priv->opts.tx_descs[1] * PKT_BUF_SZ;
 504
 505         return true;
 506 }
 507
 508 static void device_free_rings(struct vnt_private *priv)
 509 {
 510         dma_free_coherent(&priv->pcid->dev,
 511                           priv->opts.rx_descs0 * sizeof(struct vnt_rx_desc) +
 512                           priv->opts.rx_descs1 * sizeof(struct vnt_rx_desc) +
 513                           priv->opts.tx_descs[0] * sizeof(struct vnt_tx_desc) +
 514                           priv->opts.tx_descs[1] * sizeof(struct vnt_tx_desc),
 515                           priv->aRD0Ring, priv->pool_dma);
 516
 517         if (priv->tx0_bufs)
 518                 dma_free_coherent(&priv->pcid->dev,
 519                                   priv->opts.tx_descs[0] * PKT_BUF_SZ +
 520                                   priv->opts.tx_descs[1] * PKT_BUF_SZ +
 521                                   CB_BEACON_BUF_SIZE +
 522                                   CB_MAX_BUF_SIZE,
 523                                   priv->tx0_bufs, priv->tx_bufs_dma0);
 524 }
 525
 526 static int device_init_rd0_ring(struct vnt_private *priv)
 527 {
 528         int i;
 529         dma_addr_t      curr = priv->rd0_pool_dma;
 530         struct vnt_rx_desc *desc;
 531         int ret;
 532
 533         /* Init the RD0 ring entries */
 534         for (i = 0; i < priv->opts.rx_descs0;
 535              i ++, curr += sizeof(struct vnt_rx_desc)) {
 536                 desc = &priv->aRD0Ring[i];
 537                 desc->rd_info = kzalloc(sizeof(*desc->rd_info), GFP_KERNEL);
 538                 if (!desc->rd_info) {
 539                         ret = -ENOMEM;
 540                         goto err_free_desc;
 541                 }
 542
 543                 if (!device_alloc_rx_buf(priv, desc)) {
 544                         dev_err(&priv->pcid->dev, "can not alloc rx bufs\n");
 545                         ret = -ENOMEM;
 546                         goto err_free_rd;
 547                 }
 548
 549                 desc->next = &priv->aRD0Ring[(i + 1) % priv->opts.rx_descs0];
 550                 desc->next_desc = cpu_to_le32(curr + sizeof(struct vnt_rx_desc));
 551         }
 552
 553         if (i > 0)
 554                 priv->aRD0Ring[i-1].next_desc = cpu_to_le32(priv->rd0_pool_dma);
 555         priv->pCurrRD[0] = &priv->aRD0Ring[0];
 556
 557         return 0;
 558
 559 err_free_rd:
 560         kfree(desc->rd_info);
 561
 562 err_free_desc:
 563         while (--i) {
 564                 desc = &priv->aRD0Ring[i];
 565                 device_free_rx_buf(priv, desc);
 566                 kfree(desc->rd_info);
 567         }
 568
 569         return ret;
 570 }
 571
 572 static int device_init_rd1_ring(struct vnt_private *priv)
 573 {
 574         int i;
 575         dma_addr_t      curr = priv->rd1_pool_dma;
 576         struct vnt_rx_desc *desc;
 577         int ret;
 578
 579         /* Init the RD1 ring entries */
 580         for (i = 0; i < priv->opts.rx_descs1;
 581              i ++, curr += sizeof(struct vnt_rx_desc)) {
 582                 desc = &priv->aRD1Ring[i];
 583                 desc->rd_info = kzalloc(sizeof(*desc->rd_info), GFP_KERNEL);
 584                 if (!desc->rd_info) {
 585                         ret = -ENOMEM;
 586                         goto err_free_desc;
 587                 }
 588
 589                 if (!device_alloc_rx_buf(priv, desc)) {
 590                         dev_err(&priv->pcid->dev, "can not alloc rx bufs\n");
 591                         ret = -ENOMEM;
 592                         goto err_free_rd;
 593                 }
 594
 595                 desc->next = &priv->aRD1Ring[(i+1) % priv->opts.rx_descs1];
 596                 desc->next_desc = cpu_to_le32(curr + sizeof(struct vnt_rx_desc));
 597         }
 598
 599         if (i > 0)
 600                 priv->aRD1Ring[i-1].next_desc = cpu_to_le32(priv->rd1_pool_dma);
 601         priv->pCurrRD[1] = &priv->aRD1Ring[0];
 602
 603         return 0;
 604
 605 err_free_rd:
 606         kfree(desc->rd_info);
 607
 608 err_free_desc:
 609         while (--i) {
 610                 desc = &priv->aRD1Ring[i];
 611                 device_free_rx_buf(priv, desc);
 612                 kfree(desc->rd_info);
 613         }
 614
 615         return ret;
 616 }
 617
 618 static void device_free_rd0_ring(struct vnt_private *priv)
 619 {
 620         int i;
 621
 622         for (i = 0; i < priv->opts.rx_descs0; i++) {
 623                 struct vnt_rx_desc *desc = &priv->aRD0Ring[i];
 624
 625                 device_free_rx_buf(priv, desc);
 626                 kfree(desc->rd_info);
 627         }
 628 }
 629
 630 static void device_free_rd1_ring(struct vnt_private *priv)
 631 {
 632         int i;
 633
 634         for (i = 0; i < priv->opts.rx_descs1; i++) {
 635                 struct vnt_rx_desc *desc = &priv->aRD1Ring[i];
 636
 637                 device_free_rx_buf(priv, desc);
 638                 kfree(desc->rd_info);
 639         }
 640 }
 641
 642 static int device_init_td0_ring(struct vnt_private *priv)
 643 {
 644         int i;
 645         dma_addr_t  curr;
 646         struct vnt_tx_desc *desc;
 647         int ret;
 648
 649         curr = priv->td0_pool_dma;
 650         for (i = 0; i < priv->opts.tx_descs[0];
 651              i++, curr += sizeof(struct vnt_tx_desc)) {
 652                 desc = &priv->apTD0Rings[i];
 653                 desc->td_info = kzalloc(sizeof(*desc->td_info), GFP_KERNEL);
 654                 if (!desc->td_info) {
 655                         ret = -ENOMEM;
 656                         goto err_free_desc;
 657                 }
 658
 659                 desc->td_info->buf = priv->tx0_bufs + i * PKT_BUF_SZ;
 660                 desc->td_info->buf_dma = priv->tx_bufs_dma0 + i * PKT_BUF_SZ;
 661
 662                 desc->next = &(priv->apTD0Rings[(i+1) % priv->opts.tx_descs[0]]);
 663                 desc->next_desc = cpu_to_le32(curr + sizeof(struct vnt_tx_desc));
 664         }
 665
 666         if (i > 0)
 667                 priv->apTD0Rings[i-1].next_desc = cpu_to_le32(priv->td0_pool_dma);
 668         priv->apTailTD[0] = priv->apCurrTD[0] = &priv->apTD0Rings[0];
 669
 670         return 0;
 671
 672 err_free_desc:
 673         while (--i) {
 674                 desc = &priv->apTD0Rings[i];
 675                 kfree(desc->td_info);
 676         }
 677
 678         return ret;
 679 }
 680
 681 static int device_init_td1_ring(struct vnt_private *priv)
 682 {
 683         int i;
 684         dma_addr_t  curr;
 685         struct vnt_tx_desc *desc;
 686         int ret;
 687
 688         /* Init the TD ring entries */
 689         curr = priv->td1_pool_dma;
 690         for (i = 0; i < priv->opts.tx_descs[1];
 691              i++, curr += sizeof(struct vnt_tx_desc)) {
 692                 desc = &priv->apTD1Rings[i];
 693                 desc->td_info = kzalloc(sizeof(*desc->td_info), GFP_KERNEL);
 694                 if (!desc->td_info) {
 695                         ret = -ENOMEM;
 696                         goto err_free_desc;
 697                 }
 698
 699                 desc->td_info->buf = priv->tx1_bufs + i * PKT_BUF_SZ;
 700                 desc->td_info->buf_dma = priv->tx_bufs_dma1 + i * PKT_BUF_SZ;
 701
 702                 desc->next = &(priv->apTD1Rings[(i + 1) % priv->opts.tx_descs[1]]);
 703                 desc->next_desc = cpu_to_le32(curr + sizeof(struct vnt_tx_desc));
 704         }
 705
 706         if (i > 0)
 707                 priv->apTD1Rings[i-1].next_desc = cpu_to_le32(priv->td1_pool_dma);
 708         priv->apTailTD[1] = priv->apCurrTD[1] = &priv->apTD1Rings[0];
 709
 710         return 0;
 711
 712 err_free_desc:
 713         while (--i) {
 714                 desc = &priv->apTD1Rings[i];
 715                 kfree(desc->td_info);
 716         }
 717
 718         return ret;
 719 }
 720
 721 static void device_free_td0_ring(struct vnt_private *priv)
 722 {
 723         int i;
 724
 725         for (i = 0; i < priv->opts.tx_descs[0]; i++) {
 726                 struct vnt_tx_desc *desc = &priv->apTD0Rings[i];
 727                 struct vnt_td_info *td_info = desc->td_info;
 728
 729                 dev_kfree_skb(td_info->skb);
 730                 kfree(desc->td_info);
 731         }
 732 }
 733
 734 static void device_free_td1_ring(struct vnt_private *priv)
 735 {
 736         int i;
 737
 738         for (i = 0; i < priv->opts.tx_descs[1]; i++) {
 739                 struct vnt_tx_desc *desc = &priv->apTD1Rings[i];
 740                 struct vnt_td_info *td_info = desc->td_info;
 741
 742                 dev_kfree_skb(td_info->skb);
 743                 kfree(desc->td_info);
 744         }
 745 }
 746
 747 /*-----------------------------------------------------------------*/
 748
 749 static int device_rx_srv(struct vnt_private *priv, unsigned int idx)
 750 {
 751         struct vnt_rx_desc *rd;
 752         int works = 0;
 753
 754         for (rd = priv->pCurrRD[idx];
 755              rd->rd0.owner == OWNED_BY_HOST;
 756              rd = rd->next) {
 757                 if (works++ > 15)
 758                         break;
 759
 760                 if (!rd->rd_info->skb)
 761                         break;
 762
 763                 if (vnt_receive_frame(priv, rd)) {
 764                         if (!device_alloc_rx_buf(priv, rd)) {
 765                                 dev_err(&priv->pcid->dev,
 766                                         "can not allocate rx buf\n");
 767                                 break;
 768                         }
 769                 }
 770                 rd->rd0.owner = OWNED_BY_NIC;
 771         }
 772
 773         priv->pCurrRD[idx] = rd;
 774
 775         return works;
 776 }
 777
 778 static bool device_alloc_rx_buf(struct vnt_private *priv,
 779                                 struct vnt_rx_desc *rd)
 780 {
 781         struct vnt_rd_info *rd_info = rd->rd_info;
 782
 783         rd_info->skb = dev_alloc_skb((int)priv->rx_buf_sz);
 784         if (!rd_info->skb)
 785                 return false;
 786
 787         rd_info->skb_dma =
 788                 dma_map_single(&priv->pcid->dev,
 789                                skb_put(rd_info->skb, skb_tailroom(rd_info->skb)),
 790                                priv->rx_buf_sz, DMA_FROM_DEVICE);
 791         if (dma_mapping_error(&priv->pcid->dev, rd_info->skb_dma)) {
 792                 dev_kfree_skb(rd_info->skb);
 793                 rd_info->skb = NULL;
 794                 return false;
 795         }
 796
 797         *((unsigned int *)&rd->rd0) = 0; /* FIX cast */
 798
 799         rd->rd0.res_count = cpu_to_le16(priv->rx_buf_sz);
 800         rd->rd0.owner = OWNED_BY_NIC;
 801         rd->rd1.req_count = cpu_to_le16(priv->rx_buf_sz);
 802         rd->buff_addr = cpu_to_le32(rd_info->skb_dma);
 803
 804         return true;
 805 }
 806
 807 static void device_free_rx_buf(struct vnt_private *priv,
 808                                struct vnt_rx_desc *rd)
 809 {
 810         struct vnt_rd_info *rd_info = rd->rd_info;
 811
 812         dma_unmap_single(&priv->pcid->dev, rd_info->skb_dma,
 813                          priv->rx_buf_sz, DMA_FROM_DEVICE);
 814         dev_kfree_skb(rd_info->skb);
 815 }
 816
 817 static const u8 fallback_rate0[5][5] = {
 818         {RATE_18M, RATE_18M, RATE_12M, RATE_12M, RATE_12M},
 819         {RATE_24M, RATE_24M, RATE_18M, RATE_12M, RATE_12M},
 820         {RATE_36M, RATE_36M, RATE_24M, RATE_18M, RATE_18M},
 821         {RATE_48M, RATE_48M, RATE_36M, RATE_24M, RATE_24M},
 822         {RATE_54M, RATE_54M, RATE_48M, RATE_36M, RATE_36M}
 823 };
 824
 825 static const u8 fallback_rate1[5][5] = {
 826         {RATE_18M, RATE_18M, RATE_12M, RATE_6M, RATE_6M},
 827         {RATE_24M, RATE_24M, RATE_18M, RATE_6M, RATE_6M},
 828         {RATE_36M, RATE_36M, RATE_24M, RATE_12M, RATE_12M},
 829         {RATE_48M, RATE_48M, RATE_24M, RATE_12M, RATE_12M},
 830         {RATE_54M, RATE_54M, RATE_36M, RATE_18M, RATE_18M}
 831 };
 832
 833 static int vnt_int_report_rate(struct vnt_private *priv,
 834                                struct vnt_td_info *context, u8 tsr0, u8 tsr1)
 835 {
 836         struct vnt_tx_fifo_head *fifo_head;
 837         struct ieee80211_tx_info *info;
 838         struct ieee80211_rate *rate;
 839         u16 fb_option;
 840         u8 tx_retry = (tsr0 & TSR0_NCR);
 841         s8 idx;
 842
 843         if (!context)
 844                 return -ENOMEM;
 845
 846         if (!context->skb)
 847                 return -EINVAL;
 848
 849         fifo_head = (struct vnt_tx_fifo_head *)context->buf;
 850         fb_option = (le16_to_cpu(fifo_head->fifo_ctl) &
 851                         (FIFOCTL_AUTO_FB_0 | FIFOCTL_AUTO_FB_1));
 852
 853         info = IEEE80211_SKB_CB(context->skb);
 854         idx = info->control.rates[0].idx;
 855
 856         if (fb_option && !(tsr1 & TSR1_TERR)) {
 857                 u8 tx_rate;
 858                 u8 retry = tx_retry;
 859
 860                 rate = ieee80211_get_tx_rate(priv->hw, info);
 861                 tx_rate = rate->hw_value - RATE_18M;
 862
 863                 if (retry > 4)
 864                         retry = 4;
 865
 866                 if (fb_option & FIFOCTL_AUTO_FB_0)
 867                         tx_rate = fallback_rate0[tx_rate][retry];
 868                 else if (fb_option & FIFOCTL_AUTO_FB_1)
 869                         tx_rate = fallback_rate1[tx_rate][retry];
 870
 871                 if (info->band == NL80211_BAND_5GHZ)
 872                         idx = tx_rate - RATE_6M;
 873                 else
 874                         idx = tx_rate;
 875         }
 876
 877         ieee80211_tx_info_clear_status(info);
 878
 879         info->status.rates[0].count = tx_retry;
 880
 881         if (!(tsr1 & TSR1_TERR)) {
 882                 info->status.rates[0].idx = idx;
 883
 884                 if (info->flags & IEEE80211_TX_CTL_NO_ACK)
 885                         info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
 886                 else
 887                         info->flags |= IEEE80211_TX_STAT_ACK;
 888         }
 889
 890         return 0;
 891 }
 892
 893 static int device_tx_srv(struct vnt_private *priv, unsigned int idx)
 894 {
 895         struct vnt_tx_desc *desc;
 896         int                      works = 0;
 897         unsigned char byTsr0;
 898         unsigned char byTsr1;
 899
 900         for (desc = priv->apTailTD[idx]; priv->iTDUsed[idx] > 0; desc = desc->next) {
 901                 if (desc->td0.owner == OWNED_BY_NIC)
 902                         break;
 903                 if (works++ > 15)
 904                         break;
 905
 906                 byTsr0 = desc->td0.tsr0;
 907                 byTsr1 = desc->td0.tsr1;
 908
 909                 /* Only the status of first TD in the chain is correct */
 910                 if (desc->td1.tcr & TCR_STP) {
 911                         if ((desc->td_info->flags & TD_FLAGS_NETIF_SKB) != 0) {
 912                                 if (!(byTsr1 & TSR1_TERR)) {
 913                                         if (byTsr0 != 0) {
 914                                                 pr_debug(" Tx[%d] OK but has error. tsr1[%02X] tsr0[%02X]\n",
 915                                                          (int)idx, byTsr1,
 916                                                          byTsr0);
 917                                         }
 918                                 } else {
 919                                         pr_debug(" Tx[%d] dropped & tsr1[%02X] tsr0[%02X]\n",
 920                                                  (int)idx, byTsr1, byTsr0);
 921                                 }
 922                         }
 923
 924                         if (byTsr1 & TSR1_TERR) {
 925                                 if ((desc->td_info->flags & TD_FLAGS_PRIV_SKB) != 0) {
 926                                         pr_debug(" Tx[%d] fail has error. tsr1[%02X] tsr0[%02X]\n",
 927                                                  (int)idx, byTsr1, byTsr0);
 928                                 }
 929                         }
 930
 931                         vnt_int_report_rate(priv, desc->td_info, byTsr0, byTsr1);
 932
 933                         device_free_tx_buf(priv, desc);
 934                         priv->iTDUsed[idx]--;
 935                 }
 936         }
 937
 938         priv->apTailTD[idx] = desc;
 939
 940         return works;
 941 }
 942
 943 static void device_error(struct vnt_private *priv, unsigned short status)
 944 {
 945         if (status & ISR_FETALERR) {
 946                 dev_err(&priv->pcid->dev, "Hardware fatal error\n");
 947
 948                 MACbShutdown(priv);
 949                 return;
 950         }
 951 }
 952
 953 static void device_free_tx_buf(struct vnt_private *priv,
 954                                struct vnt_tx_desc *desc)
 955 {
 956         struct vnt_td_info *td_info = desc->td_info;
 957         struct sk_buff *skb = td_info->skb;
 958
 959         if (skb)
 960                 ieee80211_tx_status_irqsafe(priv->hw, skb);
 961
 962         td_info->skb = NULL;
 963         td_info->flags = 0;
 964 }
 965
 966 static void vnt_check_bb_vga(struct vnt_private *priv)
 967 {
 968         long dbm;
 969         int i;
 970
 971         if (!priv->bUpdateBBVGA)
 972                 return;
 973
 974         if (priv->hw->conf.flags & IEEE80211_CONF_OFFCHANNEL)
 975                 return;
 976
 977         if (!(priv->vif->bss_conf.assoc && priv->uCurrRSSI))
 978                 return;
 979
 980         RFvRSSITodBm(priv, (u8)priv->uCurrRSSI, &dbm);
 981
 982         for (i = 0; i < BB_VGA_LEVEL; i++) {
 983                 if (dbm < priv->ldBmThreshold[i]) {
 984                         priv->byBBVGANew = priv->abyBBVGA[i];
 985                         break;
 986                 }
 987         }
 988
 989         if (priv->byBBVGANew == priv->byBBVGACurrent) {
 990                 priv->uBBVGADiffCount = 1;
 991                 return;
 992         }
 993
 994         priv->uBBVGADiffCount++;
 995
 996         if (priv->uBBVGADiffCount == 1) {
 997                 /* first VGA diff gain */
 998                 BBvSetVGAGainOffset(priv, priv->byBBVGANew);
 999
1000                 dev_dbg(&priv->pcid->dev,
1001                         "First RSSI[%d] NewGain[%d] OldGain[%d] Count[%d]\n",
1002                         (int)dbm, priv->byBBVGANew,
1003                         priv->byBBVGACurrent,
1004                         (int)priv->uBBVGADiffCount);
1005         }
1006
1007         if (priv->uBBVGADiffCount >= BB_VGA_CHANGE_THRESHOLD) {
1008                 dev_dbg(&priv->pcid->dev,
1009                         "RSSI[%d] NewGain[%d] OldGain[%d] Count[%d]\n",
1010                         (int)dbm, priv->byBBVGANew,
1011                         priv->byBBVGACurrent,
1012                         (int)priv->uBBVGADiffCount);
1013
1014                 BBvSetVGAGainOffset(priv, priv->byBBVGANew);
1015         }
1016 }
1017
1018 static void vnt_interrupt_process(struct vnt_private *priv)
1019 {
1020         struct ieee80211_low_level_stats *low_stats = &priv->low_stats;
1021         int             max_count = 0;
1022         u32 mib_counter;
1023         u32 isr;
1024         unsigned long flags;
1025
1026         MACvReadISR(priv->PortOffset, &isr);
1027
1028         if (isr == 0)
1029                 return;
1030
1031         if (isr == 0xffffffff) {
1032                 pr_debug("isr = 0xffff\n");
1033                 return;
1034         }
1035
1036         spin_lock_irqsave(&priv->lock, flags);
1037
1038         /* Read low level stats */
1039         MACvReadMIBCounter(priv->PortOffset, &mib_counter);
1040
1041         low_stats->dot11RTSSuccessCount += mib_counter & 0xff;
1042         low_stats->dot11RTSFailureCount += (mib_counter >> 8) & 0xff;
1043         low_stats->dot11ACKFailureCount += (mib_counter >> 16) & 0xff;
1044         low_stats->dot11FCSErrorCount += (mib_counter >> 24) & 0xff;
1045
1046         /*
1047          * TBD....
1048          * Must do this after doing rx/tx, cause ISR bit is slow
1049          * than RD/TD write back
1050          * update ISR counter
1051          */
1052         while (isr && priv->vif) {
1053                 MACvWriteISR(priv->PortOffset, isr);
1054
1055                 if (isr & ISR_FETALERR) {
1056                         pr_debug(" ISR_FETALERR\n");
1057                         VNSvOutPortB(priv->PortOffset + MAC_REG_SOFTPWRCTL, 0);
1058                         VNSvOutPortW(priv->PortOffset +
1059                                      MAC_REG_SOFTPWRCTL, SOFTPWRCTL_SWPECTI);
1060                         device_error(priv, isr);
1061                 }
1062
1063                 if (isr & ISR_TBTT) {
1064                         if (priv->op_mode != NL80211_IFTYPE_ADHOC)
1065                                 vnt_check_bb_vga(priv);
1066
1067                         priv->bBeaconSent = false;
1068                         if (priv->bEnablePSMode)
1069                                 PSbIsNextTBTTWakeUp((void *)priv);
1070
1071                         if ((priv->op_mode == NL80211_IFTYPE_AP ||
1072                             priv->op_mode == NL80211_IFTYPE_ADHOC) &&
1073                             priv->vif->bss_conf.enable_beacon) {
1074                                 MACvOneShotTimer1MicroSec(priv,
1075                                                           (priv->vif->bss_conf.beacon_int - MAKE_BEACON_RESERVED) << 10);
1076                         }
1077
1078                         /* TODO: adhoc PS mode */
1079                 }
1080
1081                 if (isr & ISR_BNTX) {
1082                         if (priv->op_mode == NL80211_IFTYPE_ADHOC) {
1083                                 priv->bIsBeaconBufReadySet = false;
1084                                 priv->cbBeaconBufReadySetCnt = 0;
1085                         }
1086
1087                         priv->bBeaconSent = true;
1088                 }
1089
1090                 if (isr & ISR_RXDMA0)
1091                         max_count += device_rx_srv(priv, TYPE_RXDMA0);
1092
1093                 if (isr & ISR_RXDMA1)
1094                         max_count += device_rx_srv(priv, TYPE_RXDMA1);
1095
1096                 if (isr & ISR_TXDMA0)
1097                         max_count += device_tx_srv(priv, TYPE_TXDMA0);
1098
1099                 if (isr & ISR_AC0DMA)
1100                         max_count += device_tx_srv(priv, TYPE_AC0DMA);
1101
1102                 if (isr & ISR_SOFTTIMER1) {
1103                         if (priv->vif->bss_conf.enable_beacon)
1104                                 vnt_beacon_make(priv, priv->vif);
1105                 }
1106
1107                 /* If both buffers available wake the queue */
1108                 if (AVAIL_TD(priv, TYPE_TXDMA0) &&
1109                     AVAIL_TD(priv, TYPE_AC0DMA) &&
1110                     ieee80211_queue_stopped(priv->hw, 0))
1111                         ieee80211_wake_queues(priv->hw);
1112
1113                 MACvReadISR(priv->PortOffset, &isr);
1114
1115                 MACvReceive0(priv->PortOffset);
1116                 MACvReceive1(priv->PortOffset);
1117
1118                 if (max_count > priv->opts.int_works)
1119                         break;
1120         }
1121
1122         spin_unlock_irqrestore(&priv->lock, flags);
1123 }
1124
1125 static void vnt_interrupt_work(struct work_struct *work)
1126 {
1127         struct vnt_private *priv =
1128                 container_of(work, struct vnt_private, interrupt_work);
1129
1130         if (priv->vif)
1131                 vnt_interrupt_process(priv);
1132
1133         MACvIntEnable(priv->PortOffset, IMR_MASK_VALUE);
1134 }
1135
1136 static irqreturn_t vnt_interrupt(int irq,  void *arg)
1137 {
1138         struct vnt_private *priv = arg;
1139
1140         schedule_work(&priv->interrupt_work);
1141
1142         MACvIntDisable(priv->PortOffset);
1143
1144         return IRQ_HANDLED;
1145 }
1146
1147 static int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb)
1148 {
1149         struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
1150         struct vnt_tx_desc *head_td;
1151         u32 dma_idx;
1152         unsigned long flags;
1153
1154         spin_lock_irqsave(&priv->lock, flags);
1155
1156         if (ieee80211_is_data(hdr->frame_control))
1157                 dma_idx = TYPE_AC0DMA;
1158         else
1159                 dma_idx = TYPE_TXDMA0;
1160
1161         if (AVAIL_TD(priv, dma_idx) < 1) {
1162                 spin_unlock_irqrestore(&priv->lock, flags);
1163                 ieee80211_stop_queues(priv->hw);
1164                 return -ENOMEM;
1165         }
1166
1167         head_td = priv->apCurrTD[dma_idx];
1168
1169         head_td->td1.tcr = 0;
1170
1171         head_td->td_info->skb = skb;
1172
1173         if (dma_idx == TYPE_AC0DMA)
1174                 head_td->td_info->flags = TD_FLAGS_NETIF_SKB;
1175
1176         priv->apCurrTD[dma_idx] = head_td->next;
1177
1178         spin_unlock_irqrestore(&priv->lock, flags);
1179
1180         vnt_generate_fifo_header(priv, dma_idx, head_td, skb);
1181
1182         spin_lock_irqsave(&priv->lock, flags);
1183
1184         priv->bPWBitOn = false;
1185
1186         /* Set TSR1 & ReqCount in TxDescHead */
1187         head_td->td1.tcr |= (TCR_STP | TCR_EDP | EDMSDU);
1188         head_td->td1.req_count = cpu_to_le16(head_td->td_info->req_count);
1189
1190         head_td->buff_addr = cpu_to_le32(head_td->td_info->buf_dma);
1191
1192         /* Poll Transmit the adapter */
1193         wmb();
1194         head_td->td0.owner = OWNED_BY_NIC;
1195         wmb(); /* second memory barrier */
1196
1197         if (head_td->td_info->flags & TD_FLAGS_NETIF_SKB)
1198                 MACvTransmitAC0(priv->PortOffset);
1199         else
1200                 MACvTransmit0(priv->PortOffset);
1201
1202         priv->iTDUsed[dma_idx]++;
1203
1204         spin_unlock_irqrestore(&priv->lock, flags);
1205
1206         return 0;
1207 }
1208
1209 static void vnt_tx_80211(struct ieee80211_hw *hw,
1210                          struct ieee80211_tx_control *control,
1211                          struct sk_buff *skb)
1212 {
1213         struct vnt_private *priv = hw->priv;
1214
1215         if (vnt_tx_packet(priv, skb))
1216                 ieee80211_free_txskb(hw, skb);
1217 }
1218
1219 static int vnt_start(struct ieee80211_hw *hw)
1220 {
1221         struct vnt_private *priv = hw->priv;
1222         int ret;
1223
1224         priv->rx_buf_sz = PKT_BUF_SZ;
1225         if (!device_init_rings(priv))
1226                 return -ENOMEM;
1227
1228         ret = request_irq(priv->pcid->irq, vnt_interrupt,
1229                           IRQF_SHARED, "vt6655", priv);
1230         if (ret) {
1231                 dev_dbg(&priv->pcid->dev, "failed to start irq\n");
1232                 goto err_free_rings;
1233         }
1234
1235         dev_dbg(&priv->pcid->dev, "call device init rd0 ring\n");
1236         ret = device_init_rd0_ring(priv);
1237         if (ret)
1238                 goto err_free_irq;
1239         ret = device_init_rd1_ring(priv);
1240         if (ret)
1241                 goto err_free_rd0_ring;
1242         ret = device_init_td0_ring(priv);
1243         if (ret)
1244                 goto err_free_rd1_ring;
1245         ret = device_init_td1_ring(priv);
1246         if (ret)
1247                 goto err_free_td0_ring;
1248
1249         device_init_registers(priv);
1250
1251         dev_dbg(&priv->pcid->dev, "call MACvIntEnable\n");
1252         MACvIntEnable(priv->PortOffset, IMR_MASK_VALUE);
1253
1254         ieee80211_wake_queues(hw);
1255
1256         return 0;
1257
1258 err_free_td0_ring:
1259         device_free_td0_ring(priv);
1260 err_free_rd1_ring:
1261         device_free_rd1_ring(priv);
1262 err_free_rd0_ring:
1263         device_free_rd0_ring(priv);
1264 err_free_irq:
1265         free_irq(priv->pcid->irq, priv);
1266 err_free_rings:
1267         device_free_rings(priv);
1268         return ret;
1269 }
1270
1271 static void vnt_stop(struct ieee80211_hw *hw)
1272 {
1273         struct vnt_private *priv = hw->priv;
1274
1275         ieee80211_stop_queues(hw);
1276
1277         cancel_work_sync(&priv->interrupt_work);
1278
1279         MACbShutdown(priv);
1280         MACbSoftwareReset(priv);
1281         CARDbRadioPowerOff(priv);
1282
1283         device_free_td0_ring(priv);
1284         device_free_td1_ring(priv);
1285         device_free_rd0_ring(priv);
1286         device_free_rd1_ring(priv);
1287         device_free_rings(priv);
1288
1289         free_irq(priv->pcid->irq, priv);
1290 }
1291
1292 static int vnt_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1293 {
1294         struct vnt_private *priv = hw->priv;
1295
1296         priv->vif = vif;
1297
1298         switch (vif->type) {
1299         case NL80211_IFTYPE_STATION:
1300                 break;
1301         case NL80211_IFTYPE_ADHOC:
1302                 MACvRegBitsOff(priv->PortOffset, MAC_REG_RCR, RCR_UNICAST);
1303
1304                 MACvRegBitsOn(priv->PortOffset, MAC_REG_HOSTCR, HOSTCR_ADHOC);
1305
1306                 break;
1307         case NL80211_IFTYPE_AP:
1308                 MACvRegBitsOff(priv->PortOffset, MAC_REG_RCR, RCR_UNICAST);
1309
1310                 MACvRegBitsOn(priv->PortOffset, MAC_REG_HOSTCR, HOSTCR_AP);
1311
1312                 break;
1313         default:
1314                 return -EOPNOTSUPP;
1315         }
1316
1317         priv->op_mode = vif->type;
1318
1319         return 0;
1320 }
1321
1322 static void vnt_remove_interface(struct ieee80211_hw *hw,
1323                                  struct ieee80211_vif *vif)
1324 {
1325         struct vnt_private *priv = hw->priv;
1326
1327         switch (vif->type) {
1328         case NL80211_IFTYPE_STATION:
1329                 break;
1330         case NL80211_IFTYPE_ADHOC:
1331                 MACvRegBitsOff(priv->PortOffset, MAC_REG_TCR, TCR_AUTOBCNTX);
1332                 MACvRegBitsOff(priv->PortOffset,
1333                                MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
1334                 MACvRegBitsOff(priv->PortOffset, MAC_REG_HOSTCR, HOSTCR_ADHOC);
1335                 break;
1336         case NL80211_IFTYPE_AP:
1337                 MACvRegBitsOff(priv->PortOffset, MAC_REG_TCR, TCR_AUTOBCNTX);
1338                 MACvRegBitsOff(priv->PortOffset,
1339                                MAC_REG_TFTCTL, TFTCTL_TSFCNTREN);
1340                 MACvRegBitsOff(priv->PortOffset, MAC_REG_HOSTCR, HOSTCR_AP);
1341                 break;
1342         default:
1343                 break;
1344         }
1345
1346         priv->op_mode = NL80211_IFTYPE_UNSPECIFIED;
1347 }
1348
1349 static int vnt_config(struct ieee80211_hw *hw, u32 changed)
1350 {
1351         struct vnt_private *priv = hw->priv;
1352         struct ieee80211_conf *conf = &hw->conf;
1353         u8 bb_type;
1354
1355         if (changed & IEEE80211_CONF_CHANGE_PS) {
1356                 if (conf->flags & IEEE80211_CONF_PS)
1357                         PSvEnablePowerSaving(priv, conf->listen_interval);
1358                 else
1359                         PSvDisablePowerSaving(priv);
1360         }
1361
1362         if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) ||
1363             (conf->flags & IEEE80211_CONF_OFFCHANNEL)) {
1364                 set_channel(priv, conf->chandef.chan);
1365
1366                 if (conf->chandef.chan->band == NL80211_BAND_5GHZ)
1367                         bb_type = BB_TYPE_11A;
1368                 else
1369                         bb_type = BB_TYPE_11G;
1370
1371                 if (priv->byBBType != bb_type) {
1372                         priv->byBBType = bb_type;
1373
1374                         CARDbSetPhyParameter(priv, priv->byBBType);
1375                 }
1376         }
1377
1378         if (changed & IEEE80211_CONF_CHANGE_POWER) {
1379                 if (priv->byBBType == BB_TYPE_11B)
1380                         priv->wCurrentRate = RATE_1M;
1381                 else
1382                         priv->wCurrentRate = RATE_54M;
1383
1384                 RFbSetPower(priv, priv->wCurrentRate,
1385                             conf->chandef.chan->hw_value);
1386         }
1387
1388         return 0;
1389 }
1390
1391 static void vnt_bss_info_changed(struct ieee80211_hw *hw,
1392                                  struct ieee80211_vif *vif,
1393                                  struct ieee80211_bss_conf *conf, u32 changed)
1394 {
1395         struct vnt_private *priv = hw->priv;
1396
1397         priv->current_aid = conf->aid;
1398
1399         if (changed & BSS_CHANGED_BSSID && conf->bssid) {
1400                 unsigned long flags;
1401
1402                 spin_lock_irqsave(&priv->lock, flags);
1403
1404                 MACvWriteBSSIDAddress(priv->PortOffset, (u8 *)conf->bssid);
1405
1406                 spin_unlock_irqrestore(&priv->lock, flags);
1407         }
1408
1409         if (changed & BSS_CHANGED_BASIC_RATES) {
1410                 priv->basic_rates = conf->basic_rates;
1411
1412                 CARDvUpdateBasicTopRate(priv);
1413
1414                 dev_dbg(&priv->pcid->dev,
1415                         "basic rates %x\n", conf->basic_rates);
1416         }
1417
1418         if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1419                 if (conf->use_short_preamble) {
1420                         MACvEnableBarkerPreambleMd(priv->PortOffset);
1421                         priv->byPreambleType = true;
1422                 } else {
1423                         MACvDisableBarkerPreambleMd(priv->PortOffset);
1424                         priv->byPreambleType = false;
1425                 }
1426         }
1427
1428         if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1429                 if (conf->use_cts_prot)
1430                         MACvEnableProtectMD(priv->PortOffset);
1431                 else
1432                         MACvDisableProtectMD(priv->PortOffset);
1433         }
1434
1435         if (changed & BSS_CHANGED_ERP_SLOT) {
1436                 if (conf->use_short_slot)
1437                         priv->bShortSlotTime = true;
1438                 else
1439                         priv->bShortSlotTime = false;
1440
1441                 CARDbSetPhyParameter(priv, priv->byBBType);
1442                 BBvSetVGAGainOffset(priv, priv->abyBBVGA[0]);
1443         }
1444
1445         if (changed & BSS_CHANGED_TXPOWER)
1446                 RFbSetPower(priv, priv->wCurrentRate,
1447                             conf->chandef.chan->hw_value);
1448
1449         if (changed & BSS_CHANGED_BEACON_ENABLED) {
1450                 dev_dbg(&priv->pcid->dev,
1451                         "Beacon enable %d\n", conf->enable_beacon);
1452
1453                 if (conf->enable_beacon) {
1454                         vnt_beacon_enable(priv, vif, conf);
1455
1456                         MACvRegBitsOn(priv->PortOffset, MAC_REG_TCR,
1457                                       TCR_AUTOBCNTX);
1458                 } else {
1459                         MACvRegBitsOff(priv->PortOffset, MAC_REG_TCR,
1460                                        TCR_AUTOBCNTX);
1461                 }
1462         }
1463
1464         if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BEACON_INFO) &&
1465             priv->op_mode != NL80211_IFTYPE_AP) {
1466                 if (conf->assoc && conf->beacon_rate) {
1467                         CARDbUpdateTSF(priv, conf->beacon_rate->hw_value,
1468                                        conf->sync_tsf);
1469
1470                         CARDbSetBeaconPeriod(priv, conf->beacon_int);
1471
1472                         CARDvSetFirstNextTBTT(priv, conf->beacon_int);
1473                 } else {
1474                         VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL,
1475                                      TFTCTL_TSFCNTRST);
1476                         VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL,
1477                                      TFTCTL_TSFCNTREN);
1478                 }
1479         }
1480 }
1481
1482 static u64 vnt_prepare_multicast(struct ieee80211_hw *hw,
1483                                  struct netdev_hw_addr_list *mc_list)
1484 {
1485         struct vnt_private *priv = hw->priv;
1486         struct netdev_hw_addr *ha;
1487         u64 mc_filter = 0;
1488         u32 bit_nr = 0;
1489
1490         netdev_hw_addr_list_for_each(ha, mc_list) {
1491                 bit_nr = ether_crc(ETH_ALEN, ha->addr) >> 26;
1492
1493                 mc_filter |= 1ULL << (bit_nr & 0x3f);
1494         }
1495
1496         priv->mc_list_count = mc_list->count;
1497
1498         return mc_filter;
1499 }
1500
1501 static void vnt_configure(struct ieee80211_hw *hw,
1502                           unsigned int changed_flags,
1503                           unsigned int *total_flags, u64 multicast)
1504 {
1505         struct vnt_private *priv = hw->priv;
1506         u8 rx_mode = 0;
1507
1508         *total_flags &= FIF_ALLMULTI | FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC;
1509
1510         VNSvInPortB(priv->PortOffset + MAC_REG_RCR, &rx_mode);
1511
1512         dev_dbg(&priv->pcid->dev, "rx mode in = %x\n", rx_mode);
1513
1514         if (changed_flags & FIF_ALLMULTI) {
1515                 if (*total_flags & FIF_ALLMULTI) {
1516                         unsigned long flags;
1517
1518                         spin_lock_irqsave(&priv->lock, flags);
1519
1520                         if (priv->mc_list_count > 2) {
1521                                 MACvSelectPage1(priv->PortOffset);
1522
1523                                 VNSvOutPortD(priv->PortOffset +
1524                                              MAC_REG_MAR0, 0xffffffff);
1525                                 VNSvOutPortD(priv->PortOffset +
1526                                             MAC_REG_MAR0 + 4, 0xffffffff);
1527
1528                                 MACvSelectPage0(priv->PortOffset);
1529                         } else {
1530                                 MACvSelectPage1(priv->PortOffset);
1531
1532                                 VNSvOutPortD(priv->PortOffset +
1533                                              MAC_REG_MAR0, (u32)multicast);
1534                                 VNSvOutPortD(priv->PortOffset +
1535                                              MAC_REG_MAR0 + 4,
1536                                              (u32)(multicast >> 32));
1537
1538                                 MACvSelectPage0(priv->PortOffset);
1539                         }
1540
1541                         spin_unlock_irqrestore(&priv->lock, flags);
1542
1543                         rx_mode |= RCR_MULTICAST | RCR_BROADCAST;
1544                 } else {
1545                         rx_mode &= ~(RCR_MULTICAST | RCR_BROADCAST);
1546                 }
1547         }
1548
1549         if (changed_flags & (FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC)) {
1550                 rx_mode |= RCR_MULTICAST | RCR_BROADCAST;
1551
1552                 if (*total_flags & (FIF_OTHER_BSS | FIF_BCN_PRBRESP_PROMISC))
1553                         rx_mode &= ~RCR_BSSID;
1554                 else
1555                         rx_mode |= RCR_BSSID;
1556         }
1557
1558         VNSvOutPortB(priv->PortOffset + MAC_REG_RCR, rx_mode);
1559
1560         dev_dbg(&priv->pcid->dev, "rx mode out= %x\n", rx_mode);
1561 }
1562
1563 static int vnt_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
1564                        struct ieee80211_vif *vif, struct ieee80211_sta *sta,
1565                        struct ieee80211_key_conf *key)
1566 {
1567         struct vnt_private *priv = hw->priv;
1568
1569         switch (cmd) {
1570         case SET_KEY:
1571                 if (vnt_set_keys(hw, sta, vif, key))
1572                         return -EOPNOTSUPP;
1573                 break;
1574         case DISABLE_KEY:
1575                 if (test_bit(key->hw_key_idx, &priv->key_entry_inuse))
1576                         clear_bit(key->hw_key_idx, &priv->key_entry_inuse);
1577         default:
1578                 break;
1579         }
1580
1581         return 0;
1582 }
1583
1584 static int vnt_get_stats(struct ieee80211_hw *hw,
1585                          struct ieee80211_low_level_stats *stats)
1586 {
1587         struct vnt_private *priv = hw->priv;
1588
1589         memcpy(stats, &priv->low_stats, sizeof(*stats));
1590
1591         return 0;
1592 }
1593
1594 static u64 vnt_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1595 {
1596         struct vnt_private *priv = hw->priv;
1597         u64 tsf;
1598
1599         CARDbGetCurrentTSF(priv, &tsf);
1600
1601         return tsf;
1602 }
1603
1604 static void vnt_set_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
1605                         u64 tsf)
1606 {
1607         struct vnt_private *priv = hw->priv;
1608
1609         CARDvUpdateNextTBTT(priv, tsf, vif->bss_conf.beacon_int);
1610 }
1611
1612 static void vnt_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
1613 {
1614         struct vnt_private *priv = hw->priv;
1615
1616         /* reset TSF counter */
1617         VNSvOutPortB(priv->PortOffset + MAC_REG_TFTCTL, TFTCTL_TSFCNTRST);
1618 }
1619
1620 static const struct ieee80211_ops vnt_mac_ops = {
1621         .tx                     = vnt_tx_80211,
1622         .start                  = vnt_start,
1623         .stop                   = vnt_stop,
1624         .add_interface          = vnt_add_interface,
1625         .remove_interface       = vnt_remove_interface,
1626         .config                 = vnt_config,
1627         .bss_info_changed       = vnt_bss_info_changed,
1628         .prepare_multicast      = vnt_prepare_multicast,
1629         .configure_filter       = vnt_configure,
1630         .set_key                = vnt_set_key,
1631         .get_stats              = vnt_get_stats,
1632         .get_tsf                = vnt_get_tsf,
1633         .set_tsf                = vnt_set_tsf,
1634         .reset_tsf              = vnt_reset_tsf,
1635 };
1636
1637 static int vnt_init(struct vnt_private *priv)
1638 {
1639         SET_IEEE80211_PERM_ADDR(priv->hw, priv->abyCurrentNetAddr);
1640
1641         vnt_init_bands(priv);
1642
1643         if (ieee80211_register_hw(priv->hw))
1644                 return -ENODEV;
1645
1646         priv->mac_hw = true;
1647
1648         CARDbRadioPowerOff(priv);
1649
1650         return 0;
1651 }
1652
1653 static int
1654 vt6655_probe(struct pci_dev *pcid, const struct pci_device_id *ent)
1655 {
1656         struct vnt_private *priv;
1657         struct ieee80211_hw *hw;
1658         struct wiphy *wiphy;
1659         int         rc;
1660
1661         dev_notice(&pcid->dev,
1662                    "%s Ver. %s\n", DEVICE_FULL_DRV_NAM, DEVICE_VERSION);
1663
1664         dev_notice(&pcid->dev,
1665                    "Copyright (c) 2003 VIA Networking Technologies, Inc.\n");
1666
1667         hw = ieee80211_alloc_hw(sizeof(*priv), &vnt_mac_ops);
1668         if (!hw) {
1669                 dev_err(&pcid->dev, "could not register ieee80211_hw\n");
1670                 return -ENOMEM;
1671         }
1672
1673         priv = hw->priv;
1674         priv->pcid = pcid;
1675
1676         spin_lock_init(&priv->lock);
1677
1678         priv->hw = hw;
1679
1680         SET_IEEE80211_DEV(priv->hw, &pcid->dev);
1681
1682         if (pci_enable_device(pcid)) {
1683                 device_free_info(priv);
1684                 return -ENODEV;
1685         }
1686
1687         dev_dbg(&pcid->dev,
1688                 "Before get pci_info memaddr is %x\n", priv->memaddr);
1689
1690         pci_set_master(pcid);
1691
1692         priv->memaddr = pci_resource_start(pcid, 0);
1693         priv->ioaddr = pci_resource_start(pcid, 1);
1694         priv->PortOffset = ioremap(priv->memaddr & PCI_BASE_ADDRESS_MEM_MASK,
1695                                    256);
1696         if (!priv->PortOffset) {
1697                 dev_err(&pcid->dev, ": Failed to IO remapping ..\n");
1698                 device_free_info(priv);
1699                 return -ENODEV;
1700         }
1701
1702         rc = pci_request_regions(pcid, DEVICE_NAME);
1703         if (rc) {
1704                 dev_err(&pcid->dev, ": Failed to find PCI device\n");
1705                 device_free_info(priv);
1706                 return -ENODEV;
1707         }
1708
1709         if (dma_set_mask(&pcid->dev, DMA_BIT_MASK(32))) {
1710                 dev_err(&pcid->dev, ": Failed to set dma 32 bit mask\n");
1711                 device_free_info(priv);
1712                 return -ENODEV;
1713         }
1714
1715         INIT_WORK(&priv->interrupt_work, vnt_interrupt_work);
1716
1717         /* do reset */
1718         if (!MACbSoftwareReset(priv)) {
1719                 dev_err(&pcid->dev, ": Failed to access MAC hardware..\n");
1720                 device_free_info(priv);
1721                 return -ENODEV;
1722         }
1723         /* initial to reload eeprom */
1724         MACvInitialize(priv);
1725         MACvReadEtherAddress(priv->PortOffset, priv->abyCurrentNetAddr);
1726
1727         /* Get RFType */
1728         priv->byRFType = SROMbyReadEmbedded(priv->PortOffset, EEP_OFS_RFTYPE);
1729         priv->byRFType &= RF_MASK;
1730
1731         dev_dbg(&pcid->dev, "RF Type = %x\n", priv->byRFType);
1732
1733         device_get_options(priv);
1734         device_set_options(priv);
1735
1736         wiphy = priv->hw->wiphy;
1737
1738         wiphy->frag_threshold = FRAG_THRESH_DEF;
1739         wiphy->rts_threshold = RTS_THRESH_DEF;
1740         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1741                 BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP);
1742
1743         ieee80211_hw_set(priv->hw, TIMING_BEACON_ONLY);
1744         ieee80211_hw_set(priv->hw, SIGNAL_DBM);
1745         ieee80211_hw_set(priv->hw, RX_INCLUDES_FCS);
1746         ieee80211_hw_set(priv->hw, REPORTS_TX_ACK_STATUS);
1747         ieee80211_hw_set(priv->hw, SUPPORTS_PS);
1748
1749         priv->hw->max_signal = 100;
1750
1751         if (vnt_init(priv))
1752                 return -ENODEV;
1753
1754         device_print_info(priv);
1755         pci_set_drvdata(pcid, priv);
1756
1757         return 0;
1758 }
1759
1760 /*------------------------------------------------------------------*/
1761
1762 #ifdef CONFIG_PM
1763 static int vt6655_suspend(struct pci_dev *pcid, pm_message_t state)
1764 {
1765         struct vnt_private *priv = pci_get_drvdata(pcid);
1766         unsigned long flags;
1767
1768         spin_lock_irqsave(&priv->lock, flags);
1769
1770         pci_save_state(pcid);
1771
1772         MACbShutdown(priv);
1773
1774         pci_disable_device(pcid);
1775
1776         spin_unlock_irqrestore(&priv->lock, flags);
1777
1778         pci_set_power_state(pcid, pci_choose_state(pcid, state));
1779
1780         return 0;
1781 }
1782
1783 static int vt6655_resume(struct pci_dev *pcid)
1784 {
1785         pci_set_power_state(pcid, PCI_D0);
1786         pci_enable_wake(pcid, PCI_D0, 0);
1787         pci_restore_state(pcid);
1788
1789         return 0;
1790 }
1791 #endif
1792
1793 MODULE_DEVICE_TABLE(pci, vt6655_pci_id_table);
1794
1795 static struct pci_driver device_driver = {
1796         .name = DEVICE_NAME,
1797         .id_table = vt6655_pci_id_table,
1798         .probe = vt6655_probe,
1799         .remove = vt6655_remove,
1800 #ifdef CONFIG_PM
1801         .suspend = vt6655_suspend,
1802         .resume = vt6655_resume,
1803 #endif
1804 };
1805
1806 module_pci_driver(device_driver);