drivers/staging/rt2860/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     Justin P. Mattock   11/07/2010      Fix typos in comments
  36     --------    ----------      ----------------------------------------------
  37 */
  38
  39 #include "rt_config.h"
  40
  41 /*---------------------------------------------------------------------*/
  42 /* Private Variables Used                                              */
  43 /*---------------------------------------------------------------------*/
  44
  45 char *mac = "";         /* default 00:00:00:00:00:00 */
  46 char *hostname = "";            /* default CMPC */
  47 module_param(mac, charp, 0);
  48 MODULE_PARM_DESC(mac, "rt28xx: wireless mac addr");
  49
  50 /*---------------------------------------------------------------------*/
  51 /* Prototypes of Functions Used                                        */
  52 /*---------------------------------------------------------------------*/
  53
  54 /* public function prototype */
  55 int rt28xx_close(IN struct net_device *net_dev);
  56 int rt28xx_open(struct net_device *net_dev);
  57
  58 /* private function prototype */
  59 static int rt28xx_send_packets(IN struct sk_buff *skb_p,
  60                                IN struct net_device *net_dev);
  61
  62 static struct net_device_stats *RT28xx_get_ether_stats(IN struct net_device
  63                                                        *net_dev);
  64
  65 /*
  66 ========================================================================
  67 Routine Description:
  68     Close raxx interface.
  69
  70 Arguments:
  71         *net_dev                        the raxx interface pointer
  72
  73 Return Value:
  74     0                                   Open OK
  75         otherwise                       Open Fail
  76
  77 Note:
  78         1. if open fail, kernel will not call the close function.
  79         2. Free memory for
  80                 (1) Mlme Memory Handler:                MlmeHalt()
  81                 (2) TX & RX:                                    RTMPFreeTxRxRingMemory()
  82                 (3) BA Reordering:                              ba_reordering_resource_release()
  83 ========================================================================
  84 */
  85 int MainVirtualIF_close(IN struct net_device *net_dev)
  86 {
  87         struct rt_rtmp_adapter *pAd = NULL;
  88
  89         GET_PAD_FROM_NET_DEV(pAd, net_dev);
  90
  91         /* Sanity check for pAd */
  92         if (pAd == NULL)
  93                 return 0;       /* close ok */
  94
  95         netif_carrier_off(pAd->net_dev);
  96         netif_stop_queue(pAd->net_dev);
  97
  98         {
  99                 BOOLEAN Cancelled;
 100
 101                 if (INFRA_ON(pAd) &&
 102                     (!RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_NIC_NOT_EXIST))) {
 103                         struct rt_mlme_disassoc_req DisReq;
 104                         struct rt_mlme_queue_elem *MsgElem =
 105                                 kmalloc(sizeof(struct rt_mlme_queue_elem),
 106                                         MEM_ALLOC_FLAG);
 107
 108                         if (MsgElem) {
 109                                 COPY_MAC_ADDR(DisReq.Addr,
 110                                               pAd->CommonCfg.Bssid);
 111                                 DisReq.Reason = REASON_DEAUTH_STA_LEAVING;
 112
 113                                 MsgElem->Machine = ASSOC_STATE_MACHINE;
 114                                 MsgElem->MsgType = MT2_MLME_DISASSOC_REQ;
 115                                 MsgElem->MsgLen =
 116                                     sizeof(struct rt_mlme_disassoc_req);
 117                                 NdisMoveMemory(MsgElem->Msg, &DisReq,
 118                                                sizeof
 119                                                (struct rt_mlme_disassoc_req));
 120
 121                                 /* Prevent to connect AP again in STAMlmePeriodicExec */
 122                                 pAd->MlmeAux.AutoReconnectSsidLen = 32;
 123                                 NdisZeroMemory(pAd->MlmeAux.AutoReconnectSsid,
 124                                                pAd->MlmeAux.
 125                                                AutoReconnectSsidLen);
 126
 127                                 pAd->Mlme.CntlMachine.CurrState =
 128                                     CNTL_WAIT_OID_DISASSOC;
 129                                 MlmeDisassocReqAction(pAd, MsgElem);
 130                                 kfree(MsgElem);
 131                         }
 132
 133                         RTMPusecDelay(1000);
 134                 }
 135
 136                 RTMPCancelTimer(&pAd->StaCfg.StaQuickResponeForRateUpTimer,
 137                                 &Cancelled);
 138                 RTMPCancelTimer(&pAd->StaCfg.WpaDisassocAndBlockAssocTimer,
 139                                 &Cancelled);
 140         }
 141
 142         VIRTUAL_IF_DOWN(pAd);
 143
 144         RT_MOD_DEC_USE_COUNT();
 145
 146         return 0;               /* close ok */
 147 }
 148
 149 /*
 150 ========================================================================
 151 Routine Description:
 152     Open raxx interface.
 153
 154 Arguments:
 155         *net_dev                        the raxx interface pointer
 156
 157 Return Value:
 158     0                                   Open OK
 159         otherwise                       Open Fail
 160
 161 Note:
 162         1. if open fail, kernel will not call the close function.
 163         2. Free memory for
 164                 (1) Mlme Memory Handler:                MlmeHalt()
 165                 (2) TX & RX:                                    RTMPFreeTxRxRingMemory()
 166                 (3) BA Reordering:                              ba_reordering_resource_release()
 167 ========================================================================
 168 */
 169 int MainVirtualIF_open(IN struct net_device *net_dev)
 170 {
 171         struct rt_rtmp_adapter *pAd = NULL;
 172
 173         GET_PAD_FROM_NET_DEV(pAd, net_dev);
 174
 175         /* Sanity check for pAd */
 176         if (pAd == NULL)
 177                 return 0;       /* close ok */
 178
 179         if (VIRTUAL_IF_UP(pAd) != 0)
 180                 return -1;
 181
 182         /* increase MODULE use count */
 183         RT_MOD_INC_USE_COUNT();
 184
 185         netif_start_queue(net_dev);
 186         netif_carrier_on(net_dev);
 187         netif_wake_queue(net_dev);
 188
 189         return 0;
 190 }
 191
 192 /*
 193 ========================================================================
 194 Routine Description:
 195     Close raxx interface.
 196
 197 Arguments:
 198         *net_dev                        the raxx interface pointer
 199
 200 Return Value:
 201     0                                   Open OK
 202         otherwise                       Open Fail
 203
 204 Note:
 205         1. if open fail, kernel will not call the close function.
 206         2. Free memory for
 207                 (1) Mlme Memory Handler:                MlmeHalt()
 208                 (2) TX & RX:                                    RTMPFreeTxRxRingMemory()
 209                 (3) BA Reordering:                              ba_reordering_resource_release()
 210 ========================================================================
 211 */
 212 int rt28xx_close(struct net_device *dev)
 213 {
 214         struct net_device *net_dev = (struct net_device *)dev;
 215         struct rt_rtmp_adapter *pAd = NULL;
 216         BOOLEAN Cancelled;
 217         u32 i = 0;
 218
 219 #ifdef RTMP_MAC_USB
 220         DECLARE_WAIT_QUEUE_HEAD_ONSTACK(unlink_wakeup);
 221         DECLARE_WAITQUEUE(wait, current);
 222 #endif /* RTMP_MAC_USB // */
 223
 224         GET_PAD_FROM_NET_DEV(pAd, net_dev);
 225
 226         DBGPRINT(RT_DEBUG_TRACE, ("===> rt28xx_close\n"));
 227
 228         Cancelled = FALSE;
 229         /* Sanity check for pAd */
 230         if (pAd == NULL)
 231                 return 0;       /* close ok */
 232
 233         {
 234 #ifdef RTMP_MAC_PCI
 235                 RTMPPCIeLinkCtrlValueRestore(pAd, RESTORE_CLOSE);
 236 #endif /* RTMP_MAC_PCI // */
 237
 238                 /* If driver doesn't wake up firmware here, */
 239                 /* NICLoadFirmware will hang forever when interface is up again. */
 240                 if (OPSTATUS_TEST_FLAG(pAd, fOP_STATUS_DOZE)) {
 241                         AsicForceWakeup(pAd, TRUE);
 242                 }
 243 #ifdef RTMP_MAC_USB
 244                 RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_REMOVE_IN_PROGRESS);
 245 #endif /* RTMP_MAC_USB // */
 246
 247                 MlmeRadioOff(pAd);
 248 #ifdef RTMP_MAC_PCI
 249                 pAd->bPCIclkOff = FALSE;
 250 #endif /* RTMP_MAC_PCI // */
 251         }
 252
 253         RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS);
 254
 255         for (i = 0; i < NUM_OF_TX_RING; i++) {
 256                 while (pAd->DeQueueRunning[i] == TRUE) {
 257                         DBGPRINT(RT_DEBUG_TRACE,
 258                                  ("Waiting for TxQueue[%d] done..........\n",
 259                                   i));
 260                         RTMPusecDelay(1000);
 261                 }
 262         }
 263
 264 #ifdef RTMP_MAC_USB
 265         /* ensure there are no more active urbs. */
 266         add_wait_queue(&unlink_wakeup, &wait);
 267         pAd->wait = &unlink_wakeup;
 268
 269         /* maybe wait for deletions to finish. */
 270         i = 0;
 271         /*while((i < 25) && atomic_read(&pAd->PendingRx) > 0) */
 272         while (i < 25) {
 273                 unsigned long IrqFlags;
 274
 275                 RTMP_IRQ_LOCK(&pAd->BulkInLock, IrqFlags);
 276                 if (pAd->PendingRx == 0) {
 277                         RTMP_IRQ_UNLOCK(&pAd->BulkInLock, IrqFlags);
 278                         break;
 279                 }
 280                 RTMP_IRQ_UNLOCK(&pAd->BulkInLock, IrqFlags);
 281
 282                 msleep(UNLINK_TIMEOUT_MS);      /*Time in millisecond */
 283                 i++;
 284         }
 285         pAd->wait = NULL;
 286         remove_wait_queue(&unlink_wakeup, &wait);
 287 #endif /* RTMP_MAC_USB // */
 288
 289         /* Stop Mlme state machine */
 290         MlmeHalt(pAd);
 291
 292         /* Close net tasklets */
 293         RtmpNetTaskExit(pAd);
 294
 295         {
 296                 MacTableReset(pAd);
 297         }
 298
 299         MeasureReqTabExit(pAd);
 300         TpcReqTabExit(pAd);
 301
 302         /* Close kernel threads */
 303         RtmpMgmtTaskExit(pAd);
 304
 305 #ifdef RTMP_MAC_PCI
 306         {
 307                 BOOLEAN brc;
 308                 /*      unsigned long                   Value; */
 309
 310                 if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_INTERRUPT_ACTIVE)) {
 311                         RTMP_ASIC_INTERRUPT_DISABLE(pAd);
 312                 }
 313                 /* Receive packets to clear DMA index after disable interrupt. */
 314                 /* RTMPHandleRxDoneInterrupt(pAd); */
 315                 /* put radio off to save power when driver unloads.  After radiooff, can't write/read register, so need to finish all. */
 316                 /* register access before Radio off. */
 317
 318                 brc = RT28xxPciAsicRadioOff(pAd, RTMP_HALT, 0);
 319
 320 /*In  solution 3 of 3090F, the bPCIclkOff will be set to TRUE after calling RT28xxPciAsicRadioOff */
 321                 pAd->bPCIclkOff = FALSE;
 322
 323                 if (brc == FALSE) {
 324                         DBGPRINT(RT_DEBUG_ERROR,
 325                                  ("%s call RT28xxPciAsicRadioOff fail!\n",
 326                                   __func__));
 327                 }
 328         }
 329
 330 /*
 331         if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_INTERRUPT_ACTIVE))
 332         {
 333                 RTMP_ASIC_INTERRUPT_DISABLE(pAd);
 334         }
 335
 336         // Disable Rx, register value supposed will remain after reset
 337         NICIssueReset(pAd);
 338 */
 339 #endif /* RTMP_MAC_PCI // */
 340
 341         /* Free IRQ */
 342         if (RTMP_TEST_FLAG(pAd, fRTMP_ADAPTER_INTERRUPT_IN_USE)) {
 343 #ifdef RTMP_MAC_PCI
 344                 /* Deregister interrupt function */
 345                 RtmpOSIRQRelease(net_dev);
 346 #endif /* RTMP_MAC_PCI // */
 347                 RTMP_CLEAR_FLAG(pAd, fRTMP_ADAPTER_INTERRUPT_IN_USE);
 348         }
 349         /* Free Ring or USB buffers */
 350         RTMPFreeTxRxRingMemory(pAd);
 351
 352         RTMP_CLEAR_FLAG(pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS);
 353
 354         /* Free BA reorder resource */
 355         ba_reordering_resource_release(pAd);
 356
 357         RTMP_CLEAR_FLAG(pAd, fRTMP_ADAPTER_START_UP);
 358
 359 /*+++Modify by woody to solve the bulk fail+++*/
 360         {
 361         }
 362
 363         DBGPRINT(RT_DEBUG_TRACE, ("<=== rt28xx_close\n"));
 364         return 0;               /* close ok */
 365 }                               /* End of rt28xx_close */
 366
 367 /*
 368 ========================================================================
 369 Routine Description:
 370     Open raxx interface.
 371
 372 Arguments:
 373         *net_dev                        the raxx interface pointer
 374
 375 Return Value:
 376     0                                   Open OK
 377         otherwise                       Open Fail
 378
 379 Note:
 380 ========================================================================
 381 */
 382 int rt28xx_open(struct net_device *dev)
 383 {
 384         struct net_device *net_dev = (struct net_device *)dev;
 385         struct rt_rtmp_adapter *pAd = NULL;
 386         int retval = 0;
 387         /*struct os_cookie *pObj; */
 388
 389         GET_PAD_FROM_NET_DEV(pAd, net_dev);
 390
 391         /* Sanity check for pAd */
 392         if (pAd == NULL) {
 393                 /* if 1st open fail, pAd will be free;
 394                    So the net_dev->ml_priv will be NULL in 2rd open */
 395                 return -1;
 396         }
 397
 398         if (net_dev->priv_flags == INT_MAIN) {
 399                 if (pAd->OpMode == OPMODE_STA)
 400                         net_dev->wireless_handlers =
 401                             (struct iw_handler_def *)&rt28xx_iw_handler_def;
 402         }
 403         /* Request interrupt service routine for PCI device */
 404         /* register the interrupt routine with the os */
 405         RtmpOSIRQRequest(net_dev);
 406
 407         /* Init IRQ parameters stored in pAd */
 408         RTMP_IRQ_INIT(pAd);
 409
 410         /* Chip & other init */
 411         if (rt28xx_init(pAd, mac, hostname) == FALSE)
 412                 goto err;
 413
 414         /* Enable Interrupt */
 415         RTMP_IRQ_ENABLE(pAd);
 416
 417         /* Now Enable RxTx */
 418         RTMPEnableRxTx(pAd);
 419         RTMP_SET_FLAG(pAd, fRTMP_ADAPTER_START_UP);
 420
 421         {
 422                 u32 reg = 0;
 423                 RTMP_IO_READ32(pAd, 0x1300, &reg);      /* clear garbage interrupts */
 424                 printk(KERN_DEBUG "0x1300 = %08x\n", reg);
 425         }
 426
 427         {
 428 /*      u32 reg; */
 429 /*      u8  byte; */
 430 /*      u16 tmp; */
 431
 432 /*      RTMP_IO_READ32(pAd, XIFS_TIME_CFG, &reg); */
 433
 434 /*      tmp = 0x0805; */
 435 /*      reg  = (reg & 0xffff0000) | tmp; */
 436 /*      RTMP_IO_WRITE32(pAd, XIFS_TIME_CFG, reg); */
 437
 438         }
 439 #ifdef RTMP_MAC_PCI
 440         RTMPInitPCIeLinkCtrlValue(pAd);
 441 #endif /* RTMP_MAC_PCI // */
 442
 443         return retval;
 444
 445 err:
 446 /*+++Add by shiang, move from rt28xx_init() to here. */
 447         RtmpOSIRQRelease(net_dev);
 448 /*---Add by shiang, move from rt28xx_init() to here. */
 449         return -1;
 450 }                               /* End of rt28xx_open */
 451
 452 static const struct net_device_ops rt2860_netdev_ops = {
 453         .ndo_open = MainVirtualIF_open,
 454         .ndo_stop = MainVirtualIF_close,
 455         .ndo_do_ioctl = rt28xx_sta_ioctl,
 456         .ndo_get_stats = RT28xx_get_ether_stats,
 457         .ndo_validate_addr = NULL,
 458         .ndo_set_mac_address = eth_mac_addr,
 459         .ndo_change_mtu = eth_change_mtu,
 460         .ndo_start_xmit = rt28xx_send_packets,
 461 };
 462
 463 struct net_device *RtmpPhyNetDevInit(struct rt_rtmp_adapter *pAd,
 464                            struct rt_rtmp_os_netdev_op_hook *pNetDevHook)
 465 {
 466         struct net_device *net_dev = NULL;
 467 /*      int             Status; */
 468
 469         net_dev =
 470             RtmpOSNetDevCreate(pAd, INT_MAIN, 0, sizeof(struct rt_rtmp_adapter *),
 471                                INF_MAIN_DEV_NAME);
 472         if (net_dev == NULL) {
 473                 printk
 474                     ("RtmpPhyNetDevInit(): creation failed for main physical net device!\n");
 475                 return NULL;
 476         }
 477
 478         NdisZeroMemory((unsigned char *)pNetDevHook,
 479                        sizeof(struct rt_rtmp_os_netdev_op_hook));
 480         pNetDevHook->netdev_ops = &rt2860_netdev_ops;
 481         pNetDevHook->priv_flags = INT_MAIN;
 482         pNetDevHook->needProtcted = FALSE;
 483
 484         net_dev->ml_priv = (void *)pAd;
 485         pAd->net_dev = net_dev;
 486
 487         return net_dev;
 488
 489 }
 490
 491 /*
 492 ========================================================================
 493 Routine Description:
 494     The entry point for Linux kernel sent packet to our driver.
 495
 496 Arguments:
 497     sk_buff *skb                the pointer refer to a sk_buffer.
 498
 499 Return Value:
 500     0
 501
 502 Note:
 503         This function is the entry point of Tx Path for Os delivery packet to
 504         our driver. You only can put OS-depened & STA/AP common handle procedures
 505         in here.
 506 ========================================================================
 507 */
 508 int rt28xx_packet_xmit(struct sk_buff *skb)
 509 {
 510         struct net_device *net_dev = skb->dev;
 511         struct rt_rtmp_adapter *pAd = NULL;
 512         int status = NETDEV_TX_OK;
 513         void *pPacket = (void *)skb;
 514
 515         GET_PAD_FROM_NET_DEV(pAd, net_dev);
 516
 517         /* RT2870STA does this in RTMPSendPackets() */
 518
 519         {
 520                 /* Drop send request since we are in monitor mode */
 521                 if (MONITOR_ON(pAd)) {
 522                         RELEASE_NDIS_PACKET(pAd, pPacket, NDIS_STATUS_FAILURE);
 523                         goto done;
 524                 }
 525         }
 526
 527         /* EapolStart size is 18 */
 528         if (skb->len < 14) {
 529                 /*printk("bad packet size: %d\n", pkt->len); */
 530                 hex_dump("bad packet", skb->data, skb->len);
 531                 RELEASE_NDIS_PACKET(pAd, pPacket, NDIS_STATUS_FAILURE);
 532                 goto done;
 533         }
 534
 535         RTMP_SET_PACKET_5VT(pPacket, 0);
 536         STASendPackets((void *)pAd, (void **)&pPacket, 1);
 537
 538         status = NETDEV_TX_OK;
 539 done:
 540
 541         return status;
 542 }
 543
 544 /*
 545 ========================================================================
 546 Routine Description:
 547     Send a packet to WLAN.
 548
 549 Arguments:
 550     skb_p           points to our adapter
 551     dev_p           which WLAN network interface
 552
 553 Return Value:
 554     0: transmit successfully
 555     otherwise: transmit fail
 556
 557 Note:
 558 ========================================================================
 559 */
 560 static int rt28xx_send_packets(IN struct sk_buff *skb_p,
 561                                IN struct net_device *net_dev)
 562 {
 563         struct rt_rtmp_adapter *pAd = NULL;
 564
 565         GET_PAD_FROM_NET_DEV(pAd, net_dev);
 566
 567         if (!(net_dev->flags & IFF_UP)) {
 568                 RELEASE_NDIS_PACKET(pAd, (void *)skb_p,
 569                                     NDIS_STATUS_FAILURE);
 570                 return NETDEV_TX_OK;
 571         }
 572
 573         NdisZeroMemory((u8 *)&skb_p->cb[CB_OFF], 15);
 574         RTMP_SET_PACKET_NET_DEVICE_MBSSID(skb_p, MAIN_MBSSID);
 575
 576         return rt28xx_packet_xmit(skb_p);
 577 }
 578
 579 /* This function will be called when query /proc */
 580 struct iw_statistics *rt28xx_get_wireless_stats(IN struct net_device *net_dev)
 581 {
 582         struct rt_rtmp_adapter *pAd = NULL;
 583
 584         GET_PAD_FROM_NET_DEV(pAd, net_dev);
 585
 586         DBGPRINT(RT_DEBUG_TRACE, ("rt28xx_get_wireless_stats --->\n"));
 587
 588         pAd->iw_stats.status = 0;       /* Status - device dependent for now */
 589
 590         /* link quality */
 591         if (pAd->OpMode == OPMODE_STA)
 592                 pAd->iw_stats.qual.qual =
 593                     ((pAd->Mlme.ChannelQuality * 12) / 10 + 10);
 594
 595         if (pAd->iw_stats.qual.qual > 100)
 596                 pAd->iw_stats.qual.qual = 100;
 597
 598         if (pAd->OpMode == OPMODE_STA) {
 599                 pAd->iw_stats.qual.level =
 600                     RTMPMaxRssi(pAd, pAd->StaCfg.RssiSample.LastRssi0,
 601                                 pAd->StaCfg.RssiSample.LastRssi1,
 602                                 pAd->StaCfg.RssiSample.LastRssi2);
 603         }
 604
 605         pAd->iw_stats.qual.noise = pAd->BbpWriteLatch[66];      /* noise level (dBm) */
 606
 607         pAd->iw_stats.qual.noise += 256 - 143;
 608         pAd->iw_stats.qual.updated = 1; /* Flags to know if updated */
 609 #ifdef IW_QUAL_DBM
 610         pAd->iw_stats.qual.updated |= IW_QUAL_DBM;      /* Level + Noise are dBm */
 611 #endif /* IW_QUAL_DBM // */
 612
 613         pAd->iw_stats.discard.nwid = 0; /* Rx : Wrong nwid/essid */
 614         pAd->iw_stats.miss.beacon = 0;  /* Missed beacons/superframe */
 615
 616         DBGPRINT(RT_DEBUG_TRACE, ("<--- rt28xx_get_wireless_stats\n"));
 617         return &pAd->iw_stats;
 618 }
 619
 620 void tbtt_tasklet(unsigned long data)
 621 {
 622 /*#define MAX_TX_IN_TBTT                (16) */
 623
 624 }
 625
 626 /*
 627     ========================================================================
 628
 629     Routine Description:
 630         return ethernet statistics counter
 631
 632     Arguments:
 633         net_dev                         Pointer to net_device
 634
 635     Return Value:
 636         net_device_stats*
 637
 638     Note:
 639
 640     ========================================================================
 641 */
 642 static struct net_device_stats *RT28xx_get_ether_stats(IN struct net_device
 643                                                        *net_dev)
 644 {
 645         struct rt_rtmp_adapter *pAd = NULL;
 646
 647         if (net_dev)
 648                 GET_PAD_FROM_NET_DEV(pAd, net_dev);
 649
 650         if (pAd) {
 651
 652                 pAd->stats.rx_packets =
 653                     pAd->WlanCounters.ReceivedFragmentCount.QuadPart;
 654                 pAd->stats.tx_packets =
 655                     pAd->WlanCounters.TransmittedFragmentCount.QuadPart;
 656
 657                 pAd->stats.rx_bytes = pAd->RalinkCounters.ReceivedByteCount;
 658                 pAd->stats.tx_bytes = pAd->RalinkCounters.TransmittedByteCount;
 659
 660                 pAd->stats.rx_errors = pAd->Counters8023.RxErrors;
 661                 pAd->stats.tx_errors = pAd->Counters8023.TxErrors;
 662
 663                 pAd->stats.rx_dropped = 0;
 664                 pAd->stats.tx_dropped = 0;
 665
 666                 pAd->stats.multicast = pAd->WlanCounters.MulticastReceivedFrameCount.QuadPart;  /* multicast packets received */
 667                 pAd->stats.collisions = pAd->Counters8023.OneCollision + pAd->Counters8023.MoreCollisions;      /* Collision packets */
 668
 669                 pAd->stats.rx_length_errors = 0;
 670                 pAd->stats.rx_over_errors = pAd->Counters8023.RxNoBuffer;       /* receiver ring buff overflow */
 671                 pAd->stats.rx_crc_errors = 0;   /*pAd->WlanCounters.FCSErrorCount;     // recved pkt with crc error */
 672                 pAd->stats.rx_frame_errors = pAd->Counters8023.RcvAlignmentErrors;      /* recv'd frame alignment error */
 673                 pAd->stats.rx_fifo_errors = pAd->Counters8023.RxNoBuffer;       /* recv'r fifo overrun */
 674                 pAd->stats.rx_missed_errors = 0;        /* receiver missed packet */
 675
 676                 /* detailed tx_errors */
 677                 pAd->stats.tx_aborted_errors = 0;
 678                 pAd->stats.tx_carrier_errors = 0;
 679                 pAd->stats.tx_fifo_errors = 0;
 680                 pAd->stats.tx_heartbeat_errors = 0;
 681                 pAd->stats.tx_window_errors = 0;
 682
 683                 /* for cslip etc */
 684                 pAd->stats.rx_compressed = 0;
 685                 pAd->stats.tx_compressed = 0;
 686
 687                 return &pAd->stats;
 688         } else
 689                 return NULL;
 690 }
 691
 692 BOOLEAN RtmpPhyNetDevExit(struct rt_rtmp_adapter *pAd, struct net_device *net_dev)
 693 {
 694
 695         /* Unregister network device */
 696         if (net_dev != NULL) {
 697                 printk
 698                     ("RtmpOSNetDevDetach(): RtmpOSNetDeviceDetach(), dev->name=%s!\n",
 699                      net_dev->name);
 700                 RtmpOSNetDevDetach(net_dev);
 701         }
 702
 703         return TRUE;
 704
 705 }
 706
 707 /*
 708 ========================================================================
 709 Routine Description:
 710     Allocate memory for adapter control block.
 711
 712 Arguments:
 713     pAd                                 Pointer to our adapter
 714
 715 Return Value:
 716         NDIS_STATUS_SUCCESS
 717         NDIS_STATUS_FAILURE
 718         NDIS_STATUS_RESOURCES
 719
 720 Note:
 721 ========================================================================
 722 */
 723 int AdapterBlockAllocateMemory(void *handle, void ** ppAd)
 724 {
 725
 726         *ppAd = vmalloc(sizeof(struct rt_rtmp_adapter));
 727         /* pci_alloc_consistent(pci_dev, sizeof(struct rt_rtmp_adapter), phy_addr); */
 728
 729         if (*ppAd) {
 730                 NdisZeroMemory(*ppAd, sizeof(struct rt_rtmp_adapter));
 731                 ((struct rt_rtmp_adapter *)*ppAd)->OS_Cookie = handle;
 732                 return NDIS_STATUS_SUCCESS;
 733         } else {
 734                 return NDIS_STATUS_FAILURE;
 735         }
 736 }