drivers/staging/rt3070/rt_main_dev.c

   1 /*
   2  *************************************************************************
   3  * Ralink Tech Inc.
   4  * 5F., No.36, Taiyuan St., Jhubei City,
   5  * Hsinchu County 302,
   6  * Taiwan, R.O.C.
   7  *
   8  * (c) Copyright 2002-2007, Ralink Technology, Inc.
   9  *
  10  * This program is free software; you can redistribute it and/or modify  *
  11  * it under the terms of the GNU General Public License as published by  *
  12  * the Free Software Foundation; either version 2 of the License, or     *
  13  * (at your option) any later version.                                   *
  14  *                                                                       *
  15  * This program is distributed in the hope that it will be useful,       *
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  18  * GNU General Public License for more details.                          *
  19  *                                                                       *
  20  * You should have received a copy of the GNU General Public License     *
  21  * along with this program; if not, write to the                         *
  22  * Free Software Foundation, Inc.,                                       *
  23  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  24  *                                                                       *
  25  *************************************************************************
  26
  27     Module Name:
  28     rt_main_dev.c
  29
  30     Abstract:
  31     Create and register network interface.
  32
  33     Revision History:
  34     Who         When            What
  35     --------    ----------      ----------------------------------------------
  36         Sample          Mar/21/07               Merge RT2870 and RT2860 drivers.
  37 */
  38
  39 #include "rt_config.h"
  40
  41 #define FORTY_MHZ_INTOLERANT_INTERVAL   (60*1000) // 1 min
  42
  43 /*---------------------------------------------------------------------*/
  44 /* Private Variables Used                                              */
  45 /*---------------------------------------------------------------------*/
  46 //static RALINK_TIMER_STRUCT     PeriodicTimer;
  47
  48 char *mac = "";            // default 00:00:00:00:00:00
  49 char *hostname = "";               // default CMPC
  50 module_param (mac, charp, 0);
  51 MODULE_PARM_DESC (mac, "rt28xx: wireless mac addr");
  52
  53
  54 /*---------------------------------------------------------------------*/
  55 /* Prototypes of Functions Used                                        */
  56 /*---------------------------------------------------------------------*/
  57 #ifdef DOT11_N_SUPPORT
  58 extern BOOLEAN ba_reordering_resource_init(PRTMP_ADAPTER pAd, int num);
  59 extern void ba_reordering_resource_release(PRTMP_ADAPTER pAd);
  60 #endif // DOT11_N_SUPPORT //
  61 extern NDIS_STATUS NICLoadRateSwitchingParams(IN PRTMP_ADAPTER pAd);
  62
  63
  64 // public function prototype
  65 INT __devinit rt28xx_probe(IN void *_dev_p, IN void *_dev_id_p,
  66                                                         IN UINT argc, OUT PRTMP_ADAPTER *ppAd);
  67
  68 // private function prototype
  69 static int rt28xx_init(IN struct net_device *net_dev);
  70 INT rt28xx_send_packets(IN struct sk_buff *skb_p, IN struct net_device *net_dev);
  71
  72 static void CfgInitHook(PRTMP_ADAPTER pAd);
  73 //static BOOLEAN RT28XXAvailRANameAssign(IN CHAR *name_p);
  74
  75 #ifdef CONFIG_STA_SUPPORT
  76 extern  const struct iw_handler_def rt28xx_iw_handler_def;
  77 #endif // CONFIG_STA_SUPPORT //
  78
  79 #if WIRELESS_EXT >= 12
  80 // This function will be called when query /proc
  81 struct iw_statistics *rt28xx_get_wireless_stats(
  82     IN struct net_device *net_dev);
  83 #endif
  84
  85 struct net_device_stats *RT28xx_get_ether_stats(
  86     IN  struct net_device *net_dev);
  87
  88 /*
  89 ========================================================================
  90 Routine Description:
  91     Close raxx interface.
  92
  93 Arguments:
  94         *net_dev                        the raxx interface pointer
  95
  96 Return Value:
  97     0                                   Open OK
  98         otherwise                       Open Fail
  99
 100 Note:
 101         1. if open fail, kernel will not call the close function.
 102         2. Free memory for
 103                 (1) Mlme Memory Handler:                MlmeHalt()
 104                 (2) TX & RX:                                    RTMPFreeTxRxRingMemory()
 105                 (3) BA Reordering:                              ba_reordering_resource_release()
 106 ========================================================================
 107 */
 108 int MainVirtualIF_close(IN struct net_device *net_dev)
 109 {
 110     RTMP_ADAPTER *pAd = net_dev->ml_priv;
 111
 112         // Sanity check for pAd
 113         if (pAd == NULL)
 114                 return 0; // close ok
 115
 116         netif_carrier_off(pAd->net_dev);
 117         netif_stop_queue(pAd->net_dev);
 118
 119
 120
 121         VIRTUAL_IF_DOWN(pAd);
 122
 123         RT_MOD_DEC_USE_COUNT();
 124
 125         return 0; // close ok
 126 }
 127
 128 /*
 129 ========================================================================
 130 Routine Description:
 131     Open raxx interface.
 132
 133 Arguments:
 134         *net_dev                        the raxx interface pointer
 135
 136 Return Value:
 137     0                                   Open OK
 138         otherwise                       Open Fail
 139
 140 Note:
 141         1. if open fail, kernel will not call the close function.
 142         2. Free memory for
 143                 (1) Mlme Memory Handler:                MlmeHalt()
 144                 (2) TX & RX:                                    RTMPFreeTxRxRingMemory()
 145                 (3) BA Reordering:                              ba_reordering_resource_release()
 146 ========================================================================
 147 */
 148 int MainVirtualIF_open(IN struct net_device *net_dev)
 149 {
 150     RTMP_ADAPTER *pAd = net_dev->ml_priv;
 151
 152         // Sanity check for pAd
 153         if (pAd == NULL)
 154                 return 0; // close ok
 155
 156         if (VIRTUAL_IF_UP(pAd) != 0)
 157                 return -1;
 158
 159         // increase MODULE use count
 160         RT_MOD_INC_USE_COUNT();
 161
 162         netif_start_queue(net_dev);
 163         netif_carrier_on(net_dev);
 164         netif_wake_queue(net_dev);
 165
 166         return 0;
 167 }
 168
 169 /*
 170 ========================================================================
 171 Routine Description:
 172     Close raxx interface.
 173
 174 Arguments:
 175         *net_dev                        the raxx interface pointer
 176
 177 Return Value:
 178     0                                   Open OK
 179         otherwise                       Open Fail
 180
 181 Note:
 182         1. if open fail, kernel will not call the close function.
 183         2. Free memory for
 184                 (1) Mlme Memory Handler:                MlmeHalt()
 185                 (2) TX & RX:                                    RTMPFreeTxRxRingMemory()
 186                 (3) BA Reordering:                              ba_reordering_resource_release()
 187 ========================================================================
 188 */
 189 int rt28xx_close(IN PNET_DEV dev)
 190 {
 191         struct net_device * net_dev = (struct net_device *)dev;
 192     RTMP_ADAPTER        *pAd = net_dev->ml_priv;
 193         BOOLEAN                 Cancelled = FALSE;
 194         UINT32                  i = 0;
 195 #ifdef RT2870
 196         DECLARE_WAIT_QUEUE_HEAD(unlink_wakeup);
 197         DECLARE_WAITQUEUE(wait, current);
 198
 199         //RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_REMOVE_IN_PROGRESS);
 200 #endif // RT2870 //
 201
 202
 203     DBGPRINT(RT_DEBUG_TRACE, ("===> rt28xx_close\n"));
 204
 205         // Sanity check for pAd
 206         if (pAd == NULL)
 207                 return 0; // close ok
 208
 209 #ifdef CONFIG_STA_SUPPORT
 210         IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
 211         {
 212
 213                 // If dirver doesn't wake up firmware here,
 214                 // NICLoadFirmware will hang forever when interface is up again.
 215                 if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_DOZE))
 216         {
 217                     AsicForceWakeup(pAd, TRUE);
 218         }
 219
 220                 if (INFRA_ON(pAd) &&
 221                         (!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST)))
 222                 {
 223                         MLME_DISASSOC_REQ_STRUCT        DisReq;
 224                         MLME_QUEUE_ELEM *MsgElem = (MLME_QUEUE_ELEM *) kmalloc(sizeof(MLME_QUEUE_ELEM), MEM_ALLOC_FLAG);
 225
 226                         COPY_MAC_ADDR(DisReq.Addr, pAd->CommonCfg.Bssid);
 227                         DisReq.Reason =  REASON_DEAUTH_STA_LEAVING;
 228
 229                         MsgElem->Machine = ASSOC_STATE_MACHINE;
 230                         MsgElem->MsgType = MT2_MLME_DISASSOC_REQ;
 231                         MsgElem->MsgLen = sizeof(MLME_DISASSOC_REQ_STRUCT);
 232                         NdisMoveMemory(MsgElem->Msg, &DisReq, sizeof(MLME_DISASSOC_REQ_STRUCT));
 233
 234                         // Prevent to connect AP again in STAMlmePeriodicExec
 235                         pAd->MlmeAux.AutoReconnectSsidLen= 32;
 236                         NdisZeroMemory(pAd->MlmeAux.AutoReconnectSsid, pAd->MlmeAux.AutoReconnectSsidLen);
 237
 238                         pAd->Mlme.CntlMachine.CurrState = CNTL_WAIT_OID_DISASSOC;
 239                         MlmeDisassocReqAction(pAd, MsgElem);
 240                         kfree(MsgElem);
 241
 242                         RTMPusecDelay(1000);
 243                 }
 244
 245 #ifdef RT2870
 246         RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_REMOVE_IN_PROGRESS);
 247 #endif // RT2870 //
 248
 249 #ifdef CCX_SUPPORT
 250                 RTMPCancelTimer(&pAd->StaCfg.LeapAuthTimer, &Cancelled);
 251 #endif
 252
 253                 RTMPCancelTimer(&pAd->StaCfg.StaQuickResponeForRateUpTimer, &Cancelled);
 254                 RTMPCancelTimer(&pAd->StaCfg.WpaDisassocAndBlockAssocTimer, &Cancelled);
 255
 256 #ifdef WPA_SUPPLICANT_SUPPORT
 257 #ifndef NATIVE_WPA_SUPPLICANT_SUPPORT
 258                 {
 259                         union iwreq_data    wrqu;
 260                         // send wireless event to wpa_supplicant for infroming interface down.
 261                         memset(&wrqu, 0, sizeof(wrqu));
 262                         wrqu.data.flags = RT_INTERFACE_DOWN;
 263                         wireless_send_event(pAd->net_dev, IWEVCUSTOM, &wrqu, NULL);
 264                 }
 265 #endif // NATIVE_WPA_SUPPLICANT_SUPPORT //
 266 #endif // WPA_SUPPLICANT_SUPPORT //
 267
 268                 MlmeRadioOff(pAd);
 269         }
 270 #endif // CONFIG_STA_SUPPORT //
 271
 272         RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS);
 273
 274         for (i = 0 ; i < NUM_OF_TX_RING; i++)
 275         {
 276                 while (pAd->DeQueueRunning[i] == TRUE)
 277                 {
 278                         printk("Waiting for TxQueue[%d] done..........\n", i);
 279                         RTMPusecDelay(1000);
 280                 }
 281         }
 282
 283 #ifdef RT2870
 284         // ensure there are no more active urbs.
 285         add_wait_queue (&unlink_wakeup, &wait);
 286         pAd->wait = &unlink_wakeup;
 287
 288         // maybe wait for deletions to finish.
 289         i = 0;
 290         //while((i < 25) && atomic_read(&pAd->PendingRx) > 0)
 291         while(i < 25)
 292         {
 293                 unsigned long IrqFlags;
 294
 295                 RTMP_IRQ_LOCK(&pAd->BulkInLock, IrqFlags);
 296                 if (pAd->PendingRx == 0)
 297                 {
 298                         RTMP_IRQ_UNLOCK(&pAd->BulkInLock, IrqFlags);
 299                         break;
 300                 }
 301                 RTMP_IRQ_UNLOCK(&pAd->BulkInLock, IrqFlags);
 302
 303                 msleep(UNLINK_TIMEOUT_MS);      //Time in millisecond
 304                 i++;
 305         }
 306         pAd->wait = NULL;
 307         remove_wait_queue (&unlink_wakeup, &wait);
 308 #endif // RT2870 //
 309
 310         //RTUSBCleanUpMLMEWaitQueue(pAd);       /*not used in RT28xx*/
 311
 312
 313 #ifdef RT2870
 314         // We need clear timerQ related structure before exits of the timer thread.
 315         RT2870_TimerQ_Exit(pAd);
 316         // Close kernel threads or tasklets
 317         RT28xxThreadTerminate(pAd);
 318 #endif // RT2870 //
 319
 320         // Stop Mlme state machine
 321         MlmeHalt(pAd);
 322
 323         // Close kernel threads or tasklets
 324         kill_thread_task(pAd);
 325
 326
 327 #ifdef CONFIG_STA_SUPPORT
 328         IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
 329         {
 330                 MacTableReset(pAd);
 331         }
 332 #endif // CONFIG_STA_SUPPORT //
 333
 334
 335         MeasureReqTabExit(pAd);
 336         TpcReqTabExit(pAd);
 337
 338
 339
 340
 341         // Free Ring or USB buffers
 342         RTMPFreeTxRxRingMemory(pAd);
 343
 344         RTMP_CLEAR_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS);
 345
 346 #ifdef DOT11_N_SUPPORT
 347         // Free BA reorder resource
 348         ba_reordering_resource_release(pAd);
 349 #endif // DOT11_N_SUPPORT //
 350
 351 #ifdef RT2870
 352 #ifdef INF_AMAZON_SE
 353         if (pAd->UsbVendorReqBuf)
 354                 os_free_mem(pAd, pAd->UsbVendorReqBuf);
 355 #endif // INF_AMAZON_SE //
 356 #endif // RT2870 //
 357
 358         RTMP_CLEAR_FLAG(pAd, fRTMP_ADAPTER_START_UP);
 359
 360         return 0; // close ok
 361 } /* End of rt28xx_close */
 362
 363 static int rt28xx_init(IN struct net_device *net_dev)
 364 {
 365         PRTMP_ADAPTER                   pAd = net_dev->ml_priv;
 366         UINT                                    index;
 367         UCHAR                                   TmpPhy;
 368 //      ULONG                                   Value=0;
 369         NDIS_STATUS                             Status;
 370 //    OID_SET_HT_PHYMODE                SetHT;
 371 //      WPDMA_GLO_CFG_STRUC     GloCfg;
 372         UINT32          MacCsr0 = 0;
 373
 374 #ifdef RT2870
 375 #ifdef INF_AMAZON_SE
 376         init_MUTEX(&(pAd->UsbVendorReq_semaphore));
 377         os_alloc_mem(pAd, (PUCHAR)&pAd->UsbVendorReqBuf, MAX_PARAM_BUFFER_SIZE - 1);
 378         if (pAd->UsbVendorReqBuf == NULL)
 379         {
 380                 DBGPRINT(RT_DEBUG_ERROR, ("Allocate vendor request temp buffer failed!\n"));
 381                 goto err0;
 382         }
 383 #endif // INF_AMAZON_SE //
 384 #endif // RT2870 //
 385
 386 #ifdef DOT11_N_SUPPORT
 387         // Allocate BA Reordering memory
 388         ba_reordering_resource_init(pAd, MAX_REORDERING_MPDU_NUM);
 389 #endif // DOT11_N_SUPPORT //
 390
 391         // Make sure MAC gets ready.
 392         index = 0;
 393         do
 394         {
 395                 RTMP_IO_READ32(pAd, MAC_CSR0, &MacCsr0);
 396                 pAd->MACVersion = MacCsr0;
 397
 398                 if ((pAd->MACVersion != 0x00) && (pAd->MACVersion != 0xFFFFFFFF))
 399                         break;
 400
 401                 RTMPusecDelay(10);
 402         } while (index++ < 100);
 403
 404         DBGPRINT(RT_DEBUG_TRACE, ("MAC_CSR0  [ Ver:Rev=0x%08x]\n", pAd->MACVersion));
 405 /*Iverson patch PCIE L1 issue */
 406
 407         // Disable DMA
 408         RT28XXDMADisable(pAd);
 409
 410
 411         // Load 8051 firmware
 412         Status = NICLoadFirmware(pAd);
 413         if (Status != NDIS_STATUS_SUCCESS)
 414         {
 415                 DBGPRINT_ERR(("NICLoadFirmware failed, Status[=0x%08x]\n", Status));
 416                 goto err1;
 417         }
 418
 419         NICLoadRateSwitchingParams(pAd);
 420
 421         // Disable interrupts here which is as soon as possible
 422         // This statement should never be true. We might consider to remove it later
 423
 424         Status = RTMPAllocTxRxRingMemory(pAd);
 425         if (Status != NDIS_STATUS_SUCCESS)
 426         {
 427                 DBGPRINT_ERR(("RTMPAllocDMAMemory failed, Status[=0x%08x]\n", Status));
 428                 goto err1;
 429         }
 430
 431         RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_INTERRUPT_IN_USE);
 432
 433         // initialize MLME
 434         //
 435
 436         Status = MlmeInit(pAd);
 437         if (Status != NDIS_STATUS_SUCCESS)
 438         {
 439                 DBGPRINT_ERR(("MlmeInit failed, Status[=0x%08x]\n", Status));
 440                 goto err2;
 441         }
 442
 443         // Initialize pAd->StaCfg, pAd->ApCfg, pAd->CommonCfg to manufacture default
 444         //
 445         UserCfgInit(pAd);
 446
 447 #ifdef RT2870
 448         // We need init timerQ related structure before create the timer thread.
 449         RT2870_TimerQ_Init(pAd);
 450 #endif // RT2870 //
 451
 452         RT28XX_TASK_THREAD_INIT(pAd, Status);
 453         if (Status != NDIS_STATUS_SUCCESS)
 454                 goto err1;
 455
 456 //      COPY_MAC_ADDR(pAd->ApCfg.MBSSID[apidx].Bssid, netif->hwaddr);
 457 //      pAd->bForcePrintTX = TRUE;
 458
 459         CfgInitHook(pAd);
 460
 461 #ifdef CONFIG_STA_SUPPORT
 462         IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
 463                 NdisAllocateSpinLock(&pAd->MacTabLock);
 464 #endif // CONFIG_STA_SUPPORT //
 465
 466         MeasureReqTabInit(pAd);
 467         TpcReqTabInit(pAd);
 468
 469         //
 470         // Init the hardware, we need to init asic before read registry, otherwise mac register will be reset
 471         //
 472         Status = NICInitializeAdapter(pAd, TRUE);
 473         if (Status != NDIS_STATUS_SUCCESS)
 474         {
 475                 DBGPRINT_ERR(("NICInitializeAdapter failed, Status[=0x%08x]\n", Status));
 476                 if (Status != NDIS_STATUS_SUCCESS)
 477                 goto err3;
 478         }
 479
 480         // Read parameters from Config File
 481         Status = RTMPReadParametersHook(pAd);
 482
 483         printk("1. Phy Mode = %d\n", pAd->CommonCfg.PhyMode);
 484         if (Status != NDIS_STATUS_SUCCESS)
 485         {
 486                 DBGPRINT_ERR(("NICReadRegParameters failed, Status[=0x%08x]\n",Status));
 487                 goto err4;
 488         }
 489
 490 #ifdef RT2870
 491         pAd->CommonCfg.bMultipleIRP = FALSE;
 492
 493         if (pAd->CommonCfg.bMultipleIRP)
 494                 pAd->CommonCfg.NumOfBulkInIRP = RX_RING_SIZE;
 495         else
 496                 pAd->CommonCfg.NumOfBulkInIRP = 1;
 497 #endif // RT2870 //
 498
 499
 500         //Init Ba Capability parameters.
 501 //      RT28XX_BA_INIT(pAd);
 502 #ifdef DOT11_N_SUPPORT
 503         pAd->CommonCfg.DesiredHtPhy.MpduDensity = (UCHAR)pAd->CommonCfg.BACapability.field.MpduDensity;
 504         pAd->CommonCfg.DesiredHtPhy.AmsduEnable = (USHORT)pAd->CommonCfg.BACapability.field.AmsduEnable;
 505         pAd->CommonCfg.DesiredHtPhy.AmsduSize = (USHORT)pAd->CommonCfg.BACapability.field.AmsduSize;
 506         pAd->CommonCfg.DesiredHtPhy.MimoPs = (USHORT)pAd->CommonCfg.BACapability.field.MMPSmode;
 507         // UPdata to HT IE
 508         pAd->CommonCfg.HtCapability.HtCapInfo.MimoPs = (USHORT)pAd->CommonCfg.BACapability.field.MMPSmode;
 509         pAd->CommonCfg.HtCapability.HtCapInfo.AMsduSize = (USHORT)pAd->CommonCfg.BACapability.field.AmsduSize;
 510         pAd->CommonCfg.HtCapability.HtCapParm.MpduDensity = (UCHAR)pAd->CommonCfg.BACapability.field.MpduDensity;
 511 #endif // DOT11_N_SUPPORT //
 512
 513         // after reading Registry, we now know if in AP mode or STA mode
 514
 515         // Load 8051 firmware; crash when FW image not existent
 516         // Status = NICLoadFirmware(pAd);
 517         // if (Status != NDIS_STATUS_SUCCESS)
 518         //    break;
 519
 520         printk("2. Phy Mode = %d\n", pAd->CommonCfg.PhyMode);
 521
 522         // We should read EEPROM for all cases.  rt2860b
 523         NICReadEEPROMParameters(pAd, mac);
 524 #ifdef CONFIG_STA_SUPPORT
 525 #endif // CONFIG_STA_SUPPORT //
 526
 527         printk("3. Phy Mode = %d\n", pAd->CommonCfg.PhyMode);
 528
 529         NICInitAsicFromEEPROM(pAd); //rt2860b
 530
 531         // Set PHY to appropriate mode
 532         TmpPhy = pAd->CommonCfg.PhyMode;
 533         pAd->CommonCfg.PhyMode = 0xff;
 534         RTMPSetPhyMode(pAd, TmpPhy);
 535 #ifdef DOT11_N_SUPPORT
 536         SetCommonHT(pAd);
 537 #endif // DOT11_N_SUPPORT //
 538
 539         // No valid channels.
 540         if (pAd->ChannelListNum == 0)
 541         {
 542                 printk("Wrong configuration. No valid channel found. Check \"ContryCode\" and \"ChannelGeography\" setting.\n");
 543                 goto err4;
 544         }
 545
 546 #ifdef DOT11_N_SUPPORT
 547         printk("MCS Set = %02x %02x %02x %02x %02x\n", pAd->CommonCfg.HtCapability.MCSSet[0],
 548            pAd->CommonCfg.HtCapability.MCSSet[1], pAd->CommonCfg.HtCapability.MCSSet[2],
 549            pAd->CommonCfg.HtCapability.MCSSet[3], pAd->CommonCfg.HtCapability.MCSSet[4]);
 550 #endif // DOT11_N_SUPPORT //
 551
 552 #ifdef RT30xx
 553     //Init RT30xx RFRegisters after read RFIC type from EEPROM
 554         NICInitRT30xxRFRegisters(pAd);
 555 #endif // RT30xx //
 556
 557 //              APInitialize(pAd);
 558
 559 #ifdef IKANOS_VX_1X0
 560         VR_IKANOS_FP_Init(pAd->ApCfg.BssidNum, pAd->PermanentAddress);
 561 #endif // IKANOS_VX_1X0 //
 562
 563                 //
 564         // Initialize RF register to default value
 565         //
 566         AsicSwitchChannel(pAd, pAd->CommonCfg.Channel, FALSE);
 567         AsicLockChannel(pAd, pAd->CommonCfg.Channel);
 568
 569         if (pAd && (Status != NDIS_STATUS_SUCCESS))
 570         {
 571                 //
 572                 // Undo everything if it failed
 573                 //
 574                 if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_INTERRUPT_IN_USE))
 575                 {
 576 //                      NdisMDeregisterInterrupt(&pAd->Interrupt);
 577                         RTMP_CLEAR_FLAG(pAd, fRTMP_ADAPTER_INTERRUPT_IN_USE);
 578                 }
 579 //              RTMPFreeAdapter(pAd); // we will free it in disconnect()
 580         }
 581         else if (pAd)
 582         {
 583                 // Microsoft HCT require driver send a disconnect event after driver initialization.
 584                 OPSTATUS_CLEAR_FLAG(pAd, fOP_STATUS_MEDIA_STATE_CONNECTED);
 585 //              pAd->IndicateMediaState = NdisMediaStateDisconnected;
 586                 RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_MEDIA_STATE_CHANGE);
 587
 588                 DBGPRINT(RT_DEBUG_TRACE, ("NDIS_STATUS_MEDIA_DISCONNECT Event B!\n"));
 589
 590
 591 #ifdef RT2870
 592                 RTMP_CLEAR_FLAG(pAd, fRTMP_ADAPTER_RESET_IN_PROGRESS);
 593                 RTMP_CLEAR_FLAG(pAd, fRTMP_ADAPTER_REMOVE_IN_PROGRESS);
 594
 595                 //
 596                 // Support multiple BulkIn IRP,
 597                 // the value on pAd->CommonCfg.NumOfBulkInIRP may be large than 1.
 598                 //
 599                 for(index=0; index<pAd->CommonCfg.NumOfBulkInIRP; index++)
 600                 {
 601                         RTUSBBulkReceive(pAd);
 602                         DBGPRINT(RT_DEBUG_TRACE, ("RTUSBBulkReceive!\n" ));
 603                 }
 604 #endif // RT2870 //
 605         }// end of else
 606
 607
 608         DBGPRINT_S(Status, ("<==== RTMPInitialize, Status=%x\n", Status));
 609
 610         return TRUE;
 611
 612
 613 err4:
 614 err3:
 615         MlmeHalt(pAd);
 616 err2:
 617         RTMPFreeTxRxRingMemory(pAd);
 618 //      RTMPFreeAdapter(pAd);
 619 err1:
 620
 621 #ifdef DOT11_N_SUPPORT
 622         os_free_mem(pAd, pAd->mpdu_blk_pool.mem); // free BA pool
 623 #endif // DOT11_N_SUPPORT //
 624         RT28XX_IRQ_RELEASE(net_dev);
 625
 626         // shall not set priv to NULL here because the priv didn't been free yet.
 627         //net_dev->ml_priv = 0;
 628 #ifdef INF_AMAZON_SE
 629 err0:
 630 #endif // INF_AMAZON_SE //
 631         printk("!!! %s Initialized fail !!!\n", RT28xx_CHIP_NAME);
 632         return FALSE;
 633 } /* End of rt28xx_init */
 634
 635
 636 /*
 637 ========================================================================
 638 Routine Description:
 639     Open raxx interface.
 640
 641 Arguments:
 642         *net_dev                        the raxx interface pointer
 643
 644 Return Value:
 645     0                                   Open OK
 646         otherwise                       Open Fail
 647
 648 Note:
 649 ========================================================================
 650 */
 651 int rt28xx_open(IN PNET_DEV dev)
 652 {
 653         struct net_device * net_dev = (struct net_device *)dev;
 654         PRTMP_ADAPTER pAd = net_dev->ml_priv;
 655         int retval = 0;
 656         POS_COOKIE pObj;
 657
 658
 659         // Sanity check for pAd
 660         if (pAd == NULL)
 661         {
 662                 /* if 1st open fail, pAd will be free;
 663                    So the net_dev->ml_priv will be NULL in 2rd open */
 664                 return -1;
 665         }
 666
 667 #ifdef CONFIG_STA_SUPPORT
 668 #endif // CONFIG_STA_SUPPORT //
 669
 670         // Init
 671         pObj = (POS_COOKIE)pAd->OS_Cookie;
 672
 673         // reset Adapter flags
 674         RTMP_CLEAR_FLAGS(pAd);
 675
 676         // Request interrupt service routine for PCI device
 677         // register the interrupt routine with the os
 678         RT28XX_IRQ_REQUEST(net_dev);
 679
 680
 681         // Init BssTab & ChannelInfo tabbles for auto channel select.
 682
 683
 684         // Chip & other init
 685         if (rt28xx_init(net_dev) == FALSE)
 686                 goto err;
 687
 688 #ifdef CONFIG_STA_SUPPORT
 689         IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
 690         {
 691                 NdisZeroMemory(pAd->StaCfg.dev_name, 16);
 692                 NdisMoveMemory(pAd->StaCfg.dev_name, net_dev->name, strlen(net_dev->name));
 693         }
 694 #endif // CONFIG_STA_SUPPORT //
 695
 696         // Set up the Mac address
 697         NdisMoveMemory(net_dev->dev_addr, (void *) pAd->CurrentAddress, 6);
 698
 699         // Init IRQ parameters
 700         RT28XX_IRQ_INIT(pAd);
 701
 702         // Various AP function init
 703
 704
 705
 706 #ifdef CONFIG_STA_SUPPORT
 707         IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
 708         {
 709 #ifdef WPA_SUPPLICANT_SUPPORT
 710 #ifndef NATIVE_WPA_SUPPLICANT_SUPPORT
 711                 {
 712                         union iwreq_data    wrqu;
 713                         // send wireless event to wpa_supplicant for infroming interface down.
 714                         memset(&wrqu, 0, sizeof(wrqu));
 715                         wrqu.data.flags = RT_INTERFACE_UP;
 716                         wireless_send_event(pAd->net_dev, IWEVCUSTOM, &wrqu, NULL);
 717                 }
 718 #endif // NATIVE_WPA_SUPPLICANT_SUPPORT //
 719 #endif // WPA_SUPPLICANT_SUPPORT //
 720
 721         }
 722 #endif // CONFIG_STA_SUPPORT //
 723
 724         // Enable Interrupt
 725         RT28XX_IRQ_ENABLE(pAd);
 726
 727         // Now Enable RxTx
 728         RTMPEnableRxTx(pAd);
 729         RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_START_UP);
 730
 731         {
 732         UINT32 reg = 0;
 733         RTMP_IO_READ32(pAd, 0x1300, &reg);  // clear garbage interrupts
 734         printk("0x1300 = %08x\n", reg);
 735         }
 736
 737         {
 738 //      u32 reg;
 739 //      u8  byte;
 740 //      u16 tmp;
 741
 742 //      RTMP_IO_READ32(pAd, XIFS_TIME_CFG, &reg);
 743
 744 //      tmp = 0x0805;
 745 //      reg  = (reg & 0xffff0000) | tmp;
 746 //      RTMP_IO_WRITE32(pAd, XIFS_TIME_CFG, reg);
 747
 748         }
 749
 750 #ifdef CONFIG_STA_SUPPORT
 751 #endif // CONFIG_STA_SUPPORT //
 752
 753         return (retval);
 754
 755 err:
 756         return (-1);
 757 } /* End of rt28xx_open */
 758
 759 static const struct net_device_ops rt3070_netdev_ops = {
 760         .ndo_open               = MainVirtualIF_open,
 761         .ndo_stop               = MainVirtualIF_close,
 762         .ndo_do_ioctl           = rt28xx_ioctl,
 763         .ndo_get_stats          = RT28xx_get_ether_stats,
 764         .ndo_validate_addr      = NULL,
 765         .ndo_set_mac_address    = eth_mac_addr,
 766         .ndo_change_mtu         = eth_change_mtu,
 767 #ifdef IKANOS_VX_1X0
 768         .ndo_start_xmit         = IKANOS_DataFramesTx,
 769 #else
 770         .ndo_start_xmit         = rt28xx_send_packets,
 771 #endif
 772 };
 773
 774 /* Must not be called for mdev and apdev */
 775 static NDIS_STATUS rt_ieee80211_if_setup(struct net_device *dev, PRTMP_ADAPTER pAd)
 776 {
 777         NDIS_STATUS Status;
 778         INT     i=0;
 779         CHAR    slot_name[IFNAMSIZ];
 780         struct net_device   *device;
 781
 782
 783         //ether_setup(dev);
 784 //      dev->set_multicast_list = ieee80211_set_multicast_list;
 785 //      dev->change_mtu = ieee80211_change_mtu;
 786 #ifdef CONFIG_STA_SUPPORT
 787 #if WIRELESS_EXT >= 12
 788         if (pAd->OpMode == OPMODE_STA)
 789         {
 790                 dev->wireless_handlers = &rt28xx_iw_handler_def;
 791         }
 792 #endif //WIRELESS_EXT >= 12
 793 #endif // CONFIG_STA_SUPPORT //
 794
 795 #if WIRELESS_EXT < 21
 796                 dev->get_wireless_stats = rt28xx_get_wireless_stats;
 797 #endif
 798 //      dev->uninit = ieee80211_if_reinit;
 799 //      dev->destructor = ieee80211_if_free;
 800         dev->priv_flags = INT_MAIN;
 801         dev->netdev_ops = &rt3070_netdev_ops;
 802         // find available device name
 803         for (i = 0; i < 8; i++)
 804         {
 805                 sprintf(slot_name, "ra%d", i);
 806
 807                 device = dev_get_by_name(dev_net(dev), slot_name);
 808                 if (device != NULL)
 809                         dev_put(device);
 810
 811                 if (device == NULL)
 812                         break;
 813         }
 814
 815         if(i == 8)
 816         {
 817                 DBGPRINT(RT_DEBUG_ERROR, ("No available slot name\n"));
 818                 Status = NDIS_STATUS_FAILURE;
 819         }
 820         else
 821         {
 822                 sprintf(dev->name, "ra%d", i);
 823                 Status = NDIS_STATUS_SUCCESS;
 824         }
 825
 826         return Status;
 827
 828 }
 829
 830 /*
 831 ========================================================================
 832 Routine Description:
 833     Probe RT28XX chipset.
 834
 835 Arguments:
 836     _dev_p                              Point to the PCI or USB device
 837         _dev_id_p                       Point to the PCI or USB device ID
 838
 839 Return Value:
 840     0                                   Probe OK
 841         -ENODEV                         Probe Fail
 842
 843 Note:
 844 ========================================================================
 845 */
 846 INT __devinit   rt28xx_probe(
 847     IN  void *_dev_p,
 848     IN  void *_dev_id_p,
 849         IN  UINT argc,
 850         OUT PRTMP_ADAPTER *ppAd)
 851 {
 852     struct  net_device  *net_dev;
 853     PRTMP_ADAPTER       pAd = (PRTMP_ADAPTER) NULL;
 854     INT                 status;
 855         PVOID                           handle;
 856 #ifdef RT2870
 857         struct usb_interface *intf = (struct usb_interface *)_dev_p;
 858         struct usb_device *dev_p = interface_to_usbdev(intf);
 859
 860         dev_p = usb_get_dev(dev_p);
 861 #endif // RT2870 //
 862
 863
 864 #ifdef CONFIG_STA_SUPPORT
 865     DBGPRINT(RT_DEBUG_TRACE, ("STA Driver version-%s\n", STA_DRIVER_VERSION));
 866 #endif // CONFIG_STA_SUPPORT //
 867
 868         // Check chipset vendor/product ID
 869 //      if (RT28XXChipsetCheck(_dev_p) == FALSE)
 870 //              goto err_out;
 871
 872     net_dev = alloc_etherdev(sizeof(PRTMP_ADAPTER));
 873     if (net_dev == NULL)
 874     {
 875         printk("alloc_netdev failed\n");
 876
 877         goto err_out;
 878     }
 879
 880 // sample
 881 //      if (rt_ieee80211_if_setup(net_dev) != NDIS_STATUS_SUCCESS)
 882 //              goto err_out;
 883
 884         netif_stop_queue(net_dev);
 885 #ifdef NATIVE_WPA_SUPPLICANT_SUPPORT
 886 /* for supporting Network Manager */
 887 /* Set the sysfs physical device reference for the network logical device
 888  * if set prior to registration will cause a symlink during initialization.
 889  */
 890     SET_NETDEV_DEV(net_dev, &(dev_p->dev));
 891 #endif // NATIVE_WPA_SUPPLICANT_SUPPORT //
 892
 893         // Allocate RTMP_ADAPTER miniport adapter structure
 894         handle = kmalloc(sizeof(struct os_cookie), GFP_KERNEL);
 895         RT28XX_HANDLE_DEV_ASSIGN(handle, dev_p);
 896
 897         status = RTMPAllocAdapterBlock(handle, &pAd);
 898         if (status != NDIS_STATUS_SUCCESS)
 899                 goto err_out_free_netdev;
 900
 901         net_dev->ml_priv = (PVOID)pAd;
 902     pAd->net_dev = net_dev; // must be before RT28XXNetDevInit()
 903
 904         RT28XXNetDevInit(_dev_p, net_dev, pAd);
 905
 906 #ifdef CONFIG_STA_SUPPORT
 907     pAd->StaCfg.OriDevType = net_dev->type;
 908 #endif // CONFIG_STA_SUPPORT //
 909
 910         // Find and assign a free interface name, raxx
 911 //      RT28XXAvailRANameAssign(net_dev->name);
 912
 913         // Post config
 914         if (RT28XXProbePostConfig(_dev_p, pAd, 0) == FALSE)
 915                 goto err_out_unmap;
 916
 917 #ifdef CONFIG_STA_SUPPORT
 918         pAd->OpMode = OPMODE_STA;
 919 #endif // CONFIG_STA_SUPPORT //
 920
 921         // sample move
 922         if (rt_ieee80211_if_setup(net_dev, pAd) != NDIS_STATUS_SUCCESS)
 923                 goto err_out_unmap;
 924
 925     // Register this device
 926     status = register_netdev(net_dev);
 927     if (status)
 928         goto err_out_unmap;
 929
 930     // Set driver data
 931         RT28XX_DRVDATA_SET(_dev_p);
 932
 933
 934
 935         *ppAd = pAd;
 936     return 0; // probe ok
 937
 938
 939         /* --------------------------- ERROR HANDLE --------------------------- */
 940 err_out_unmap:
 941         RTMPFreeAdapter(pAd);
 942         RT28XX_UNMAP();
 943
 944 err_out_free_netdev:
 945         free_netdev(net_dev);
 946
 947 err_out:
 948         RT28XX_PUT_DEVICE(dev_p);
 949
 950         return -ENODEV; /* probe fail */
 951 } /* End of rt28xx_probe */
 952
 953
 954 /*
 955 ========================================================================
 956 Routine Description:
 957     The entry point for Linux kernel sent packet to our driver.
 958
 959 Arguments:
 960     sk_buff *skb                the pointer refer to a sk_buffer.
 961
 962 Return Value:
 963     0
 964
 965 Note:
 966         This function is the entry point of Tx Path for Os delivery packet to
 967         our driver. You only can put OS-depened & STA/AP common handle procedures
 968         in here.
 969 ========================================================================
 970 */
 971 int rt28xx_packet_xmit(struct sk_buff *skb)
 972 {
 973         struct net_device *net_dev = skb->dev;
 974         PRTMP_ADAPTER pAd = net_dev->ml_priv;
 975         int status = 0;
 976         PNDIS_PACKET pPacket = (PNDIS_PACKET) skb;
 977
 978 #ifdef CONFIG_STA_SUPPORT
 979         IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
 980         {
 981                 // Drop send request since we are in monitor mode
 982                 if (MONITOR_ON(pAd))
 983                 {
 984                         RELEASE_NDIS_PACKET(pAd, pPacket, NDIS_STATUS_FAILURE);
 985                         goto done;
 986                 }
 987         }
 988 #endif // CONFIG_STA_SUPPORT //
 989
 990         // EapolStart size is 18
 991         if (skb->len < 14)
 992         {
 993                 //printk("bad packet size: %d\n", pkt->len);
 994                 hex_dump("bad packet", skb->data, skb->len);
 995                 RELEASE_NDIS_PACKET(pAd, pPacket, NDIS_STATUS_FAILURE);
 996                 goto done;
 997         }
 998
 999         RTMP_SET_PACKET_5VT(pPacket, 0);
1000 //      MiniportMMRequest(pAd, pkt->data, pkt->len);
1001 #ifdef CONFIG_5VT_ENHANCE
1002     if (*(int*)(skb->cb) == BRIDGE_TAG) {
1003                 RTMP_SET_PACKET_5VT(pPacket, 1);
1004     }
1005 #endif
1006
1007
1008
1009 #ifdef CONFIG_STA_SUPPORT
1010         IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
1011         {
1012
1013                 STASendPackets((NDIS_HANDLE)pAd, (PPNDIS_PACKET) &pPacket, 1);
1014         }
1015
1016 #endif // CONFIG_STA_SUPPORT //
1017
1018         status = 0;
1019 done:
1020
1021         return status;
1022 }
1023
1024
1025 /*
1026 ========================================================================
1027 Routine Description:
1028     Send a packet to WLAN.
1029
1030 Arguments:
1031     skb_p           points to our adapter
1032     dev_p           which WLAN network interface
1033
1034 Return Value:
1035     0: transmit successfully
1036     otherwise: transmit fail
1037
1038 Note:
1039 ========================================================================
1040 */
1041 INT rt28xx_send_packets(
1042         IN struct sk_buff               *skb_p,
1043         IN struct net_device    *net_dev)
1044 {
1045     RTMP_ADAPTER *pAd = net_dev->ml_priv;
1046
1047         if (!(net_dev->flags & IFF_UP))
1048         {
1049                 RELEASE_NDIS_PACKET(pAd, (PNDIS_PACKET)skb_p, NDIS_STATUS_FAILURE);
1050                 return 0;
1051         }
1052
1053         NdisZeroMemory((PUCHAR)&skb_p->cb[CB_OFF], 15);
1054         RTMP_SET_PACKET_NET_DEVICE_MBSSID(skb_p, MAIN_MBSSID);
1055
1056         return rt28xx_packet_xmit(skb_p);
1057 } /* End of MBSS_VirtualIF_PacketSend */
1058
1059
1060
1061
1062 void CfgInitHook(PRTMP_ADAPTER pAd)
1063 {
1064         pAd->bBroadComHT = TRUE;
1065 } /* End of CfgInitHook */
1066
1067
1068 #if WIRELESS_EXT >= 12
1069 // This function will be called when query /proc
1070 struct iw_statistics *rt28xx_get_wireless_stats(
1071     IN struct net_device *net_dev)
1072 {
1073         PRTMP_ADAPTER pAd = net_dev->ml_priv;
1074
1075
1076         DBGPRINT(RT_DEBUG_TRACE, ("rt28xx_get_wireless_stats --->\n"));
1077
1078         pAd->iw_stats.status = 0; // Status - device dependent for now
1079
1080         // link quality
1081         pAd->iw_stats.qual.qual = ((pAd->Mlme.ChannelQuality * 12)/10 + 10);
1082         if(pAd->iw_stats.qual.qual > 100)
1083                 pAd->iw_stats.qual.qual = 100;
1084
1085 #ifdef CONFIG_STA_SUPPORT
1086         if (pAd->OpMode == OPMODE_STA)
1087                 pAd->iw_stats.qual.level = RTMPMaxRssi(pAd, pAd->StaCfg.RssiSample.LastRssi0, pAd->StaCfg.RssiSample.LastRssi1, pAd->StaCfg.RssiSample.LastRssi2);
1088 #endif // CONFIG_STA_SUPPORT //
1089
1090         pAd->iw_stats.qual.noise = pAd->BbpWriteLatch[66]; // noise level (dBm)
1091
1092         pAd->iw_stats.qual.noise += 256 - 143;
1093         pAd->iw_stats.qual.updated = 1;     // Flags to know if updated
1094 #ifdef IW_QUAL_DBM
1095         pAd->iw_stats.qual.updated |= IW_QUAL_DBM;      // Level + Noise are dBm
1096 #endif // IW_QUAL_DBM //
1097
1098         pAd->iw_stats.discard.nwid = 0;     // Rx : Wrong nwid/essid
1099         pAd->iw_stats.miss.beacon = 0;      // Missed beacons/superframe
1100
1101         DBGPRINT(RT_DEBUG_TRACE, ("<--- rt28xx_get_wireless_stats\n"));
1102         return &pAd->iw_stats;
1103 } /* End of rt28xx_get_wireless_stats */
1104 #endif // WIRELESS_EXT //
1105
1106
1107
1108 void tbtt_tasklet(unsigned long data)
1109 {
1110 #define MAX_TX_IN_TBTT          (16)
1111
1112 }
1113
1114 INT rt28xx_ioctl(
1115         IN      struct net_device       *net_dev,
1116         IN      OUT     struct ifreq    *rq,
1117         IN      INT                                     cmd)
1118 {
1119         VIRTUAL_ADAPTER *pVirtualAd = NULL;
1120         RTMP_ADAPTER    *pAd = NULL;
1121         INT                             ret = 0;
1122
1123         if (net_dev->priv_flags == INT_MAIN)
1124         {
1125                 pAd = net_dev->ml_priv;
1126         }
1127         else
1128         {
1129                 pVirtualAd = net_dev->ml_priv;
1130                 pAd = pVirtualAd->RtmpDev->ml_priv;
1131         }
1132
1133         if (pAd == NULL)
1134         {
1135                 /* if 1st open fail, pAd will be free;
1136                    So the net_dev->ml_priv will be NULL in 2rd open */
1137                 return -ENETDOWN;
1138         }
1139
1140
1141 #ifdef CONFIG_STA_SUPPORT
1142         IF_DEV_CONFIG_OPMODE_ON_STA(pAd)
1143         {
1144                 ret = rt28xx_sta_ioctl(net_dev, rq, cmd);
1145         }
1146 #endif // CONFIG_STA_SUPPORT //
1147
1148         return ret;
1149 }
1150
1151 /*
1152     ========================================================================
1153
1154     Routine Description:
1155         return ethernet statistics counter
1156
1157     Arguments:
1158         net_dev                     Pointer to net_device
1159
1160     Return Value:
1161         net_device_stats*
1162
1163     Note:
1164
1165     ========================================================================
1166 */
1167 struct net_device_stats *RT28xx_get_ether_stats(
1168     IN  struct net_device *net_dev)
1169 {
1170     RTMP_ADAPTER *pAd = NULL;
1171
1172         if (net_dev)
1173                 pAd = net_dev->ml_priv;
1174
1175         if (pAd)
1176         {
1177
1178                 pAd->stats.rx_packets = pAd->WlanCounters.ReceivedFragmentCount.QuadPart;
1179                 pAd->stats.tx_packets = pAd->WlanCounters.TransmittedFragmentCount.QuadPart;
1180
1181                 pAd->stats.rx_bytes = pAd->RalinkCounters.ReceivedByteCount;
1182                 pAd->stats.tx_bytes = pAd->RalinkCounters.TransmittedByteCount;
1183
1184                 pAd->stats.rx_errors = pAd->Counters8023.RxErrors;
1185                 pAd->stats.tx_errors = pAd->Counters8023.TxErrors;
1186
1187                 pAd->stats.rx_dropped = 0;
1188                 pAd->stats.tx_dropped = 0;
1189
1190             pAd->stats.multicast = pAd->WlanCounters.MulticastReceivedFrameCount.QuadPart;   // multicast packets received
1191             pAd->stats.collisions = pAd->Counters8023.OneCollision + pAd->Counters8023.MoreCollisions;  // Collision packets
1192
1193             pAd->stats.rx_length_errors = 0;
1194             pAd->stats.rx_over_errors = pAd->Counters8023.RxNoBuffer;                   // receiver ring buff overflow
1195             pAd->stats.rx_crc_errors = 0;//pAd->WlanCounters.FCSErrorCount;     // recved pkt with crc error
1196             pAd->stats.rx_frame_errors = pAd->Counters8023.RcvAlignmentErrors;          // recv'd frame alignment error
1197             pAd->stats.rx_fifo_errors = pAd->Counters8023.RxNoBuffer;                   // recv'r fifo overrun
1198             pAd->stats.rx_missed_errors = 0;                                            // receiver missed packet
1199
1200             // detailed tx_errors
1201             pAd->stats.tx_aborted_errors = 0;
1202             pAd->stats.tx_carrier_errors = 0;
1203             pAd->stats.tx_fifo_errors = 0;
1204             pAd->stats.tx_heartbeat_errors = 0;
1205             pAd->stats.tx_window_errors = 0;
1206
1207             // for cslip etc
1208             pAd->stats.rx_compressed = 0;
1209             pAd->stats.tx_compressed = 0;
1210
1211                 return &pAd->stats;
1212         }
1213         else
1214         return NULL;
1215 }
1216