drivers/net/wireless/rtl8723au/hal/rtl8723a/usb/usb_ops_linux.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  *
  19  ******************************************************************************/
  20 #define _HCI_OPS_OS_C_
  21
  22 #include <drv_conf.h>
  23 #include <osdep_service.h>
  24 #include <drv_types.h>
  25 #include <osdep_intf.h>
  26 #include <usb_ops.h>
  27 #include <circ_buf.h>
  28 #include <recv_osdep.h>
  29 //#include <rtl8192c_hal.h>
  30 #include <rtl8723a_hal.h>
  31 #include <rtl8723a_recv.h>
  32 #if defined (PLATFORM_LINUX) && defined (PLATFORM_WINDOWS)
  33
  34 #error "Shall be Linux or Windows, but not both!\n"
  35
  36 #endif
  37
  38 static int usbctrl_vendorreq(struct intf_hdl *pintfhdl, u8 request, u16 value, u16 index, void *pdata, u16 len, u8 requesttype)
  39 {
  40         _adapter                *padapter = pintfhdl->padapter ;
  41         struct dvobj_priv *pdvobjpriv = adapter_to_dvobj(padapter);
  42         struct usb_device *udev=pdvobjpriv->pusbdev;
  43
  44         unsigned int pipe;
  45         int status = 0;
  46         u32 tmp_buflen=0;
  47         u8 reqtype;
  48         u8 *pIo_buf;
  49         int vendorreq_times = 0;
  50
  51         #ifdef CONFIG_USB_VENDOR_REQ_BUFFER_DYNAMIC_ALLOCATE
  52         u8 *tmp_buf;
  53         #else // use stack memory
  54         u8 tmp_buf[MAX_USB_IO_CTL_SIZE];
  55         #endif
  56
  57 #ifdef CONFIG_CONCURRENT_MODE
  58         if(padapter->adapter_type > PRIMARY_ADAPTER)
  59         {
  60                 padapter = padapter->pbuddy_adapter;
  61                 pdvobjpriv = adapter_to_dvobj(padapter);
  62                 udev = pdvobjpriv->pusbdev;
  63         }
  64 #endif
  65
  66
  67         //DBG_871X("%s %s:%d\n",__FUNCTION__, current->comm, current->pid);
  68
  69         if((padapter->bSurpriseRemoved) ||(dvobj_to_pwrctl(pdvobjpriv)->pnp_bstop_trx)){
  70                 RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usbctrl_vendorreq:(padapter->bSurpriseRemoved ||pwrctl->pnp_bstop_trx)!!!\n"));
  71                 status = -EPERM;
  72                 goto exit;
  73         }
  74
  75         if(len>MAX_VENDOR_REQ_CMD_SIZE){
  76                 DBG_8192C( "[%s] Buffer len error ,vendor request failed\n", __FUNCTION__ );
  77                 status = -EINVAL;
  78                 goto exit;
  79         }
  80
  81         #ifdef CONFIG_USB_VENDOR_REQ_MUTEX
  82         _enter_critical_mutex(&pdvobjpriv->usb_vendor_req_mutex, NULL);
  83         #endif
  84
  85
  86         // Acquire IO memory for vendorreq
  87 #ifdef CONFIG_USB_VENDOR_REQ_BUFFER_PREALLOC
  88         pIo_buf = pdvobjpriv->usb_vendor_req_buf;
  89 #else
  90         #ifdef CONFIG_USB_VENDOR_REQ_BUFFER_DYNAMIC_ALLOCATE
  91         tmp_buf = rtw_malloc( (u32) len + ALIGNMENT_UNIT);
  92         tmp_buflen =  (u32)len + ALIGNMENT_UNIT;
  93         #else // use stack memory
  94         tmp_buflen = MAX_USB_IO_CTL_SIZE;
  95         #endif
  96
  97         // Added by Albert 2010/02/09
  98         // For mstar platform, mstar suggests the address for USB IO should be 16 bytes alignment.
  99         // Trying to fix it here.
 100         pIo_buf = (tmp_buf==NULL)?NULL:tmp_buf + ALIGNMENT_UNIT -((SIZE_PTR)(tmp_buf) & 0x0f );
 101 #endif
 102
 103         if ( pIo_buf== NULL) {
 104                 DBG_8192C( "[%s] pIo_buf == NULL \n", __FUNCTION__ );
 105                 status = -ENOMEM;
 106                 goto release_mutex;
 107         }
 108
 109         while(++vendorreq_times<= MAX_USBCTRL_VENDORREQ_TIMES)
 110         {
 111                 _rtw_memset(pIo_buf, 0, len);
 112
 113                 if (requesttype == 0x01)
 114                 {
 115                         pipe = usb_rcvctrlpipe(udev, 0);//read_in
 116                         reqtype =  REALTEK_USB_VENQT_READ;
 117                 }
 118                 else
 119                 {
 120                         pipe = usb_sndctrlpipe(udev, 0);//write_out
 121                         reqtype =  REALTEK_USB_VENQT_WRITE;
 122                         _rtw_memcpy( pIo_buf, pdata, len);
 123                 }
 124
 125                 #if 0
 126                 //timeout test for firmware downloading
 127                 status = rtw_usb_control_msg(udev, pipe, request, reqtype, value, index, pIo_buf, len
 128                         , ((value >= FW_8192C_START_ADDRESS && value <= FW_8192C_END_ADDRESS) ||value!=0x1000) ?RTW_USB_CONTROL_MSG_TIMEOUT : RTW_USB_CONTROL_MSG_TIMEOUT_TEST
 129                 );
 130                 #else
 131                 status = rtw_usb_control_msg(udev, pipe, request, reqtype, value, index, pIo_buf, len, RTW_USB_CONTROL_MSG_TIMEOUT);
 132                 #endif
 133
 134                 if ( status == len)   // Success this control transfer.
 135                 {
 136                         rtw_reset_continual_io_error(pdvobjpriv);
 137                         if ( requesttype == 0x01 )
 138                         {   // For Control read transfer, we have to copy the read data from pIo_buf to pdata.
 139                                 _rtw_memcpy( pdata, pIo_buf,  len );
 140                         }
 141                 }
 142                 else { // error cases
 143                         DBG_8192C("reg 0x%x, usb %s %u fail, status:%d value=0x%x, vendorreq_times:%d\n"
 144                                 , value,(requesttype == 0x01)?"read":"write" , len, status, *(u32*)pdata, vendorreq_times);
 145
 146                         if (status < 0) {
 147                                 if(status == (-ESHUTDOWN)       || status == -ENODEV    )
 148                                 {
 149                                         padapter->bSurpriseRemoved = _TRUE;
 150                                 } else {
 151                                         #ifdef DBG_CONFIG_ERROR_DETECT
 152                                         {
 153                                                 HAL_DATA_TYPE   *pHalData = GET_HAL_DATA(padapter);
 154                                                 pHalData->srestpriv.Wifi_Error_Status = USB_VEN_REQ_CMD_FAIL;
 155                                         }
 156                                         #endif
 157                                 }
 158                         }
 159                         else // status != len && status >= 0
 160                         {
 161                                 if(status > 0) {
 162                                         if ( requesttype == 0x01 )
 163                                         {   // For Control read transfer, we have to copy the read data from pIo_buf to pdata.
 164                                                 _rtw_memcpy( pdata, pIo_buf,  len );
 165                                         }
 166                                 }
 167                         }
 168
 169                         if(rtw_inc_and_chk_continual_io_error(pdvobjpriv) == _TRUE ){
 170                                 padapter->bSurpriseRemoved = _TRUE;
 171                                 break;
 172                         }
 173
 174                 }
 175
 176                 // firmware download is checksumed, don't retry
 177                 if( (value >= FW_8723A_START_ADDRESS && value <= FW_8723A_END_ADDRESS) || status == len )
 178                         break;
 179
 180         }
 181
 182         // release IO memory used by vendorreq
 183         #ifdef CONFIG_USB_VENDOR_REQ_BUFFER_DYNAMIC_ALLOCATE
 184         rtw_mfree(tmp_buf, tmp_buflen);
 185         #endif
 186
 187 release_mutex:
 188         #ifdef CONFIG_USB_VENDOR_REQ_MUTEX
 189         _exit_critical_mutex(&pdvobjpriv->usb_vendor_req_mutex, NULL);
 190         #endif
 191 exit:
 192         return status;
 193
 194 }
 195
 196 static u8 usb_read8(struct intf_hdl *pintfhdl, u32 addr)
 197 {
 198         u8 request;
 199         u8 requesttype;
 200         u16 wvalue;
 201         u16 index;
 202         u16 len;
 203         u8 data=0;
 204
 205         _func_enter_;
 206
 207         request = 0x05;
 208         requesttype = 0x01;//read_in
 209         index = 0;//n/a
 210
 211         wvalue = (u16)(addr&0x0000ffff);
 212         len = 1;
 213
 214         usbctrl_vendorreq(pintfhdl, request, wvalue, index, &data, len, requesttype);
 215
 216         _func_exit_;
 217
 218         return data;
 219
 220 }
 221
 222 static u16 usb_read16(struct intf_hdl *pintfhdl, u32 addr)
 223 {
 224         u8 request;
 225         u8 requesttype;
 226         u16 wvalue;
 227         u16 index;
 228         u16 len;
 229         u16 data=0;
 230
 231         _func_enter_;
 232
 233         request = 0x05;
 234         requesttype = 0x01;//read_in
 235         index = 0;//n/a
 236
 237         wvalue = (u16)(addr&0x0000ffff);
 238         len = 2;
 239
 240         usbctrl_vendorreq(pintfhdl, request, wvalue, index, &data, len, requesttype);
 241
 242         _func_exit_;
 243
 244         return data;
 245
 246 }
 247
 248 static u32 usb_read32(struct intf_hdl *pintfhdl, u32 addr)
 249 {
 250         u8 request;
 251         u8 requesttype;
 252         u16 wvalue;
 253         u16 index;
 254         u16 len;
 255         u32 data=0;
 256
 257         _func_enter_;
 258
 259         request = 0x05;
 260         requesttype = 0x01;//read_in
 261         index = 0;//n/a
 262
 263         wvalue = (u16)(addr&0x0000ffff);
 264         len = 4;
 265
 266         usbctrl_vendorreq(pintfhdl, request, wvalue, index, &data, len, requesttype);
 267
 268         _func_exit_;
 269
 270         return data;
 271
 272 }
 273
 274 static int usb_write8(struct intf_hdl *pintfhdl, u32 addr, u8 val)
 275 {
 276         u8 request;
 277         u8 requesttype;
 278         u16 wvalue;
 279         u16 index;
 280         u16 len;
 281         u8 data;
 282         int ret;
 283
 284         _func_enter_;
 285
 286         request = 0x05;
 287         requesttype = 0x00;//write_out
 288         index = 0;//n/a
 289
 290         wvalue = (u16)(addr&0x0000ffff);
 291         len = 1;
 292
 293         data = val;
 294
 295          ret = usbctrl_vendorreq(pintfhdl, request, wvalue, index, &data, len, requesttype);
 296
 297         _func_exit_;
 298
 299         return ret;
 300
 301 }
 302
 303 static int usb_write16(struct intf_hdl *pintfhdl, u32 addr, u16 val)
 304 {
 305         u8 request;
 306         u8 requesttype;
 307         u16 wvalue;
 308         u16 index;
 309         u16 len;
 310         u16 data;
 311         int ret;
 312
 313         _func_enter_;
 314
 315         request = 0x05;
 316         requesttype = 0x00;//write_out
 317         index = 0;//n/a
 318
 319         wvalue = (u16)(addr&0x0000ffff);
 320         len = 2;
 321
 322         data = val;
 323
 324         ret = usbctrl_vendorreq(pintfhdl, request, wvalue, index, &data, len, requesttype);
 325
 326         _func_exit_;
 327
 328         return ret;
 329
 330 }
 331
 332 static int usb_write32(struct intf_hdl *pintfhdl, u32 addr, u32 val)
 333 {
 334         u8 request;
 335         u8 requesttype;
 336         u16 wvalue;
 337         u16 index;
 338         u16 len;
 339         u32 data;
 340         int ret;
 341
 342         _func_enter_;
 343
 344         request = 0x05;
 345         requesttype = 0x00;//write_out
 346         index = 0;//n/a
 347
 348         wvalue = (u16)(addr&0x0000ffff);
 349         len = 4;
 350         data = val;
 351
 352
 353         ret =usbctrl_vendorreq(pintfhdl, request, wvalue, index, &data, len, requesttype);
 354
 355         _func_exit_;
 356
 357         return ret;
 358
 359 }
 360
 361 static int usb_writeN(struct intf_hdl *pintfhdl, u32 addr, u32 length, u8 *pdata)
 362 {
 363         u8 request;
 364         u8 requesttype;
 365         u16 wvalue;
 366         u16 index;
 367         u16 len;
 368         u8 buf[VENDOR_CMD_MAX_DATA_LEN]={0};
 369         int ret;
 370
 371         _func_enter_;
 372
 373         request = 0x05;
 374         requesttype = 0x00;//write_out
 375         index = 0;//n/a
 376
 377         wvalue = (u16)(addr&0x0000ffff);
 378         len = length;
 379          _rtw_memcpy(buf, pdata, len );
 380
 381         ret = usbctrl_vendorreq(pintfhdl, request, wvalue, index, buf, len, requesttype);
 382
 383         _func_exit_;
 384
 385         return ret;
 386
 387 }
 388
 389 #ifdef CONFIG_USB_INTERRUPT_IN_PIPE
 390 #if 0
 391 /**
 392 * Log the Interrupt value and update counter no matter STA is associated or not. It is
 393 * implemented for FPGA verification stage because we need to now whether the current FPGA
 394 * platform is alive
 395 *
 396 * \param pAdapter                       The adapter context for this minoport
 397 * \param        IsrContent              The ISR value read from hardware in MPISR
 398 *
 399 * We sholud remove this function later because DDK suggest not to executing too many
 400 * operations in MPISR
 401 */
 402 VOID
 403 LogInterruptHistory8723AU(
 404         PADAPTER                        Adapter
 405 )
 406 {
 407         HAL_DATA_TYPE   *pHalData=GET_HAL_DATA(Adapter);
 408
 409 //      if(pHalData->IntArray[0] & IMR_COMDOK)
 410 //              pHalData->InterruptLog.nIMR_COMDOK++;
 411         if(pHalData->IntArray[0] & UHIMR_VODOK)
 412         {
 413                 pHalData->InterruptLog.nIMR_VODOK++;
 414                 DBG_8192C("UHIMR_VODOK %d \n", pHalData->InterruptLog.nIMR_VODOK);
 415         }
 416         if(pHalData->IntArray[0] & UHIMR_VIDOK)
 417         {
 418                 pHalData->InterruptLog.nIMR_VIDOK++;
 419                 DBG_8192C("UHIMR_VIDOK %d\n", pHalData->InterruptLog.nIMR_VIDOK);
 420         }
 421         if(pHalData->IntArray[0] & UHIMR_MGNTDOK)
 422         {
 423                 pHalData->InterruptLog.nIMR_MGNTDOK++;
 424                 DBG_8192C("UHIMR_MGNTDOK %d\n", pHalData->InterruptLog.nIMR_MGNTDOK);
 425         }
 426         if(pHalData->IntArray[0] & UHIMR_BEDOK)
 427         {
 428                 pHalData->InterruptLog.nIMR_BEDOK++;
 429                 DBG_8192C("UHIMR_BEDOK %d\n", pHalData->InterruptLog.nIMR_BEDOK);
 430         }
 431         if(pHalData->IntArray[0] & UHIMR_BKDOK)
 432         {
 433                 pHalData->InterruptLog.nIMR_BKDOK++;
 434                 DBG_8192C("UHIMR_BKDOK %d\n", pHalData->InterruptLog.nIMR_BKDOK);
 435         }
 436         if(pHalData->IntArray[0] & UHIMR_ROK)
 437         {
 438                 pHalData->InterruptLog.nIMR_ROK++;
 439                 DBG_8192C("UHIMR_ROK %d\n", pHalData->InterruptLog.nIMR_ROK);
 440         }
 441
 442         if(pHalData->IntArray[0] & UHIMR_TXBCNOK)
 443         {
 444                 pHalData->InterruptLog.nIMR_TBDOK++;
 445                 DBG_8192C("UHIMR_TXBCNOK %d\n", pHalData->InterruptLog.nIMR_TBDOK);
 446         }
 447         if(pHalData->IntArray[0] & UHIMR_BCNDOK0)
 448         {
 449                 pHalData->InterruptLog.nIMR_BDOK++;
 450                 DBG_8192C("UHIMR_BCNDOK0 %d\n", pHalData->InterruptLog.nIMR_BDOK);
 451         }
 452         if(pHalData->IntArray[0] & UHIMR_C2HCMD)
 453         {
 454                 pHalData->InterruptLog.nIMR_C2HCMD++;
 455                 DBG_8192C("UHIMR_C2HCMD %d\n", pHalData->InterruptLog.nIMR_C2HCMD);
 456         }
 457         if(pHalData->IntArray[0] & UHIMR_CPWM)
 458         {
 459                 pHalData->InterruptLog.nIMR_C2HCMD++;
 460                 DBG_8192C("UHIMR_CPWM %d\n", pHalData->InterruptLog.nIMR_CPWM);
 461         }
 462
 463 //      if(pHalData->IntArray[0] & IMR_RXCMDOK)
 464 //              pHalData->InterruptLog.nIMR_RCOK++;
 465         if(pHalData->IntArray[0] & UHIMR_RDU)
 466         {
 467                 pHalData->InterruptLog.nIMR_RDU++;
 468                 DBG_8192C("UHIMR_RDU %d\n", pHalData->InterruptLog.nIMR_RDU);
 469         }
 470
 471         if(pHalData->IntArray[1] & UHIMR_RXFOVW)
 472         {
 473                 pHalData->InterruptLog.nIMR_RXFOVW++;
 474                 DBG_8192C("UHIMR_RXFOVW %d\n", pHalData->InterruptLog.nIMR_RXFOVW);
 475         }
 476
 477
 478 }
 479 #endif
 480 //
 481 // Description:
 482 //      Recognize the interrupt content by reading the interrupt register or content and masking interrupt mask (IMR)
 483 //      if it is our NIC's interrupt. After recognizing, we may clear the all interrupts (ISR).
 484 // Arguments:
 485 //      [in] Adapter -
 486 //              The adapter context.
 487 //      [in] pContent -
 488 //              Under PCI interface, this field is ignord.
 489 //              Under USB interface, the content is the interrupt content pointer.
 490 //              Under SDIO interface, this is the interrupt type which is Local interrupt or system interrupt.
 491 //      [in] ContentLen -
 492 //              The length in byte of pContent.
 493 // Return:
 494 //      If any interrupt matches the mask (IMR), return TRUE, and return FALSE otherwise.
 495 //
 496 BOOLEAN
 497 InterruptRecognized8723AU(
 498         IN      PADAPTER                        Adapter,
 499         IN      PVOID                           pContent,
 500         IN      u32                             ContentLen
 501 )
 502 {
 503         HAL_DATA_TYPE   *pHalData=GET_HAL_DATA(Adapter);
 504         u8 *                    buffer = (u8 *)pContent;
 505 //      RT_PRINT_DATA(COMP_RECV, DBG_LOUD, ("InterruptRecognized8723AU Interrupt buffer \n"), buffer, MAX_RECEIVE_INTERRUPT_BUFFER_SIZE(Adapter));
 506
 507         _rtw_memcpy(&(pHalData->IntArray[0]), &(buffer[USB_INTR_CONTENT_HISR_OFFSET]), 4);
 508 //      PlatformMoveMemory(&(pHalData->IntArray[0]), &(buffer[USB_INTR_CONTENT_HISR_OFFSET]), sizeof(u4Byte));
 509 //      DBG_8192C("InterruptRecognized8723AU HISR = 0x%x HIMR = 0x%x\n", pHalData->IntArray[0],pHalData->IntrMask[0]);
 510         pHalData->IntArray[0] &= pHalData->IntrMask[0];
 511
 512         //For HISR extension. Added by tynli. 2009.10.07.
 513         _rtw_memcpy(&(pHalData->IntArray[1]), &(buffer[USB_INTR_CONTENT_HISRE_OFFSET]), 4);
 514 //      PlatformMoveMemory(&(pHalData->IntArray[1]), &(buffer[USB_INTR_CONTENT_HISRE_OFFSET]), sizeof(u4Byte));
 515 //      DBG_8192C("InterruptRecognized8192CUsb HISRE = 0x%x HIMRE = 0x%x\n", pHalData->IntArray[1], pHalData->IntrMask[1]);
 516         pHalData->IntArray[1] &= pHalData->IntrMask[1];
 517
 518         // We sholud remove this function later because DDK suggest not to executing too many operations in MPISR
 519 //      if(pHalData->IntArray[0] != 0)
 520 //              LogInterruptHistory8723AU(Adapter);
 521
 522         {
 523                 struct reportpwrstate_parm report;
 524                 _rtw_memcpy(&report.state, &(buffer[USB_INTR_CPWM_OFFSET]), 1);
 525 #ifdef CONFIG_LPS_LCLK
 526                 if( ((pHalData->IntArray[0])&UHIMR_CPWM)){
 527 //                      DBG_8192C("%s HIMR=0x%x\n",__func__,pHalData->IntArray[0]);
 528                         //cpwm_int_hdl(Adapter, &report);
 529                         _set_workitem(&(adapter_to_pwrctl(Adapter)->cpwm_event));
 530                         pHalData->IntArray[0]&= ~UHIMR_CPWM;
 531 //                      DBG_8192C("%s HIMR=0x%x\n",__func__,pHalData->IntArray[0]);
 532                 }
 533 #endif
 534         }
 535         return (((pHalData->IntArray[0])&pHalData->IntrMask[0])!=0 ||
 536                 ((pHalData->IntArray[1])&pHalData->IntrMask[1])!=0);
 537
 538 }
 539
 540
 541 static void usb_read_interrupt_complete(struct urb *purb, struct pt_regs *regs)
 542 {
 543         int     err;
 544         PADAPTER padapter = (PADAPTER)purb->context;
 545
 546
 547         if(padapter->bSurpriseRemoved || padapter->bDriverStopped||padapter->bReadPortCancel)
 548         {
 549                 DBG_8192C("%s() RX Warning! bDriverStopped(%d) OR bSurpriseRemoved(%d) bReadPortCancel(%d)\n",
 550                 __FUNCTION__,padapter->bDriverStopped, padapter->bSurpriseRemoved,padapter->bReadPortCancel);
 551                 return;
 552         }
 553
 554         if (purb->status == 0)//SUCCESS
 555         {
 556                 struct c2h_evt_hdr *c2h_evt = (struct c2h_evt_hdr *)purb->transfer_buffer;
 557
 558                 if (purb->actual_length > USB_INTR_CONTENT_LENGTH) {
 559                         DBG_8192C("usb_read_interrupt_complete: purb->actual_length > USB_INTR_CONTENT_LENGTH\n");
 560                         goto urb_submit;
 561                 }
 562
 563                 InterruptRecognized8723AU(padapter, purb->transfer_buffer, purb->actual_length);
 564
 565                 if (c2h_evt_exist(c2h_evt)) {
 566                         if (0)
 567                                 DBG_871X("%s C2H == %d\n", __func__, c2h_evt->id);
 568                         if (c2h_id_filter_ccx_8723a(c2h_evt->id)) {
 569                                 /* Handle CCX report here */
 570                                 handle_txrpt_ccx_8723a(padapter, (void *)(c2h_evt->payload));
 571                                 /* Replace with special pointer to trigger c2h_evt_clear */
 572                                 if (rtw_cbuf_push(padapter->evtpriv.c2h_queue, (void*)&padapter->evtpriv) != _SUCCESS)
 573                                         DBG_871X("%s rtw_cbuf_push fail\n", __func__);
 574                                 _set_workitem(&padapter->evtpriv.c2h_wk);
 575                         } else if ((c2h_evt = (struct c2h_evt_hdr *)rtw_malloc(16)) != NULL) {
 576                                 _rtw_memcpy(c2h_evt, purb->transfer_buffer, 16);
 577                                 if (rtw_cbuf_push(padapter->evtpriv.c2h_queue, (void*)c2h_evt) != _SUCCESS)
 578                                         DBG_871X("%s rtw_cbuf_push fail\n", __func__);
 579                                 _set_workitem(&padapter->evtpriv.c2h_wk);
 580                         } else {
 581                                 /* Error handling for malloc fail */
 582                                 if (rtw_cbuf_push(padapter->evtpriv.c2h_queue, (void*)NULL) != _SUCCESS)
 583                                         DBG_871X("%s rtw_cbuf_push fail\n", __func__);
 584                                 _set_workitem(&padapter->evtpriv.c2h_wk);
 585                         }
 586                 }
 587
 588 urb_submit:
 589                 err = usb_submit_urb(purb, GFP_ATOMIC);
 590                 if ((err) && (err != (-EPERM)))
 591                 {
 592                         DBG_8192C("cannot submit interrupt in-token(err = 0x%08x),urb_status = %d\n",err, purb->status);
 593                 }
 594         }
 595         else
 596         {
 597                 DBG_8192C("###=> usb_read_interrupt_complete => urb status(%d)\n", purb->status);
 598
 599                 switch (purb->status)
 600                 {
 601                         case -EINVAL:
 602                         case -EPIPE:
 603                         case -ENODEV:
 604                         case -ESHUTDOWN:
 605                                 //padapter->bSurpriseRemoved = _TRUE;
 606                                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete:bSurpriseRemoved=TRUE\n"));
 607                         case -ENOENT:
 608                                 padapter->bDriverStopped = _TRUE;
 609                                 RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete:bDriverStopped=TRUE\n"));
 610                                 break;
 611                         case -EPROTO:
 612                                 break;
 613                         case -EINPROGRESS:
 614                                 DBG_8192C("ERROR: URB IS IN PROGRESS!/n");
 615                                 break;
 616                         default:
 617                                 break;
 618                 }
 619         }
 620 }
 621
 622 static u32 usb_read_interrupt(struct intf_hdl *pintfhdl, u32 addr)
 623 {
 624         int     err;
 625         unsigned int pipe;
 626         u32     ret = _SUCCESS;
 627         _adapter                        *adapter = pintfhdl->padapter;
 628         struct dvobj_priv       *pdvobj = adapter_to_dvobj(adapter);
 629         struct recv_priv        *precvpriv = &adapter->recvpriv;
 630         struct usb_device       *pusbd = pdvobj->pusbdev;
 631
 632 _func_enter_;
 633
 634         //translate DMA FIFO addr to pipehandle
 635         pipe = ffaddr2pipehdl(pdvobj, addr);
 636
 637         usb_fill_int_urb(precvpriv->int_in_urb, pusbd, pipe,
 638                                         precvpriv->int_in_buf,
 639                                         USB_INTR_CONTENT_LENGTH,
 640                                         usb_read_interrupt_complete,
 641                                         adapter,
 642                                         1);
 643
 644         err = usb_submit_urb(precvpriv->int_in_urb, GFP_ATOMIC);
 645         if((err) && (err != (-EPERM)))
 646         {
 647                 DBG_8192C("cannot submit interrupt in-token(err = 0x%08x),urb_status = %d\n",err, precvpriv->int_in_urb->status);
 648                 ret = _FAIL;
 649         }
 650
 651 _func_exit_;
 652
 653         return ret;
 654 }
 655 #endif
 656
 657 #ifdef CONFIG_USE_USB_BUFFER_ALLOC_RX
 658 static int recvbuf2recvframe(_adapter *padapter, struct recv_buf *precvbuf)
 659 {
 660         u8      *pbuf;
 661         u8      shift_sz = 0;
 662         u16     pkt_cnt, drvinfo_sz;
 663         u32     pkt_offset, skb_len, alloc_sz;
 664         s32     transfer_len;
 665         struct recv_stat        *prxstat;
 666         struct phy_stat *pphy_info = NULL;
 667         _pkt                            *pkt_copy = NULL;
 668         union recv_frame        *precvframe = NULL;
 669         struct rx_pkt_attrib    *pattrib = NULL;
 670         HAL_DATA_TYPE           *pHalData = GET_HAL_DATA(padapter);
 671         struct recv_priv        *precvpriv = &padapter->recvpriv;
 672         _queue                  *pfree_recv_queue = &precvpriv->free_recv_queue;
 673
 674
 675         transfer_len = (s32)precvbuf->transfer_len;
 676         pbuf = precvbuf->pbuf;
 677
 678         prxstat = (struct recv_stat *)pbuf;
 679         pkt_cnt = (le32_to_cpu(prxstat->rxdw2)>>16) & 0xff;
 680
 681 #if 0 //temp remove when disable usb rx aggregation
 682         if((pkt_cnt > 10) || (pkt_cnt < 1) || (transfer_len<RXDESC_SIZE) ||(pkt_len<=0))
 683         {
 684                 return _FAIL;
 685         }
 686 #endif
 687
 688         do{
 689                 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
 690                          ("recvbuf2recvframe: rxdesc=offsset 0:0x%08x, 4:0x%08x, 8:0x%08x, C:0x%08x\n",
 691                           prxstat->rxdw0, prxstat->rxdw1, prxstat->rxdw2, prxstat->rxdw4));
 692
 693                 prxstat = (struct recv_stat *)pbuf;
 694
 695                 precvframe = rtw_alloc_recvframe(pfree_recv_queue);
 696                 if(precvframe==NULL)
 697                 {
 698                         RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("recvbuf2recvframe: precvframe==NULL\n"));
 699                         DBG_8192C("%s()-%d: rtw_alloc_recvframe() failed! RX Drop!\n", __FUNCTION__, __LINE__);
 700                         goto _exit_recvbuf2recvframe;
 701                 }
 702
 703                 _rtw_init_listhead(&precvframe->u.hdr.list);
 704                 precvframe->u.hdr.precvbuf = NULL;      //can't access the precvbuf for new arch.
 705                 precvframe->u.hdr.len=0;
 706
 707 //              rtl8192c_query_rx_desc_status(precvframe, prxstat);
 708                 update_recvframe_attrib(precvframe, prxstat);
 709
 710                 pattrib = &precvframe->u.hdr.attrib;
 711
 712                 if(padapter->registrypriv.mp_mode == 0) && (pattrib->crc_err)){
 713                         DBG_8192C("%s()-%d: RX Warning! rx CRC ERROR !!\n", __FUNCTION__, __LINE__);
 714                         rtw_free_recvframe(precvframe, pfree_recv_queue);
 715                         goto _exit_recvbuf2recvframe;
 716                 }
 717
 718                 pkt_offset = RXDESC_SIZE + pattrib->drvinfo_sz + pattrib->shift_sz + pattrib->pkt_len;
 719
 720                 if((pattrib->pkt_len<=0) || (pkt_offset>transfer_len))
 721                 {
 722                         RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("recvbuf2recvframe: pkt_len<=0\n"));
 723                         DBG_8192C("%s()-%d: RX Warning!\n", __FUNCTION__, __LINE__);
 724                         rtw_free_recvframe(precvframe, pfree_recv_queue);
 725                         goto _exit_recvbuf2recvframe;
 726                 }
 727
 728                 //      Modified by Albert 20101213
 729                 //      For 8 bytes IP header alignment.
 730                 if (pattrib->qos)       //      Qos data, wireless lan header length is 26
 731                 {
 732                         shift_sz = 6;
 733                 }
 734                 else
 735                 {
 736                         shift_sz = 0;
 737                 }
 738
 739                 skb_len = pattrib->pkt_len;
 740
 741                 // for first fragment packet, driver need allocate 1536+drvinfo_sz+RXDESC_SIZE to defrag packet.
 742                 // modify alloc_sz for recvive crc error packet by thomas 2011-06-02
 743                 if((pattrib->mfrag == 1)&&(pattrib->frag_num == 0)){
 744                         //alloc_sz = 1664;      //1664 is 128 alignment.
 745                         if(skb_len <= 1650)
 746                                 alloc_sz = 1664;
 747                         else
 748                                 alloc_sz = skb_len + 14;
 749                 }
 750                 else {
 751                         alloc_sz = skb_len;
 752                         //      6 is for IP header 8 bytes alignment in QoS packet case.
 753                         //      8 is for skb->data 4 bytes alignment.
 754                         alloc_sz += 14;
 755                 }
 756
 757                 pkt_copy = rtw_skb_alloc(alloc_sz);
 758
 759                 if(pkt_copy)
 760                 {
 761                         pkt_copy->dev = padapter->pnetdev;
 762                         precvframe->u.hdr.pkt = pkt_copy;
 763                         precvframe->u.hdr.rx_head = pkt_copy->data;
 764                         precvframe->u.hdr.rx_end = pkt_copy->data + alloc_sz;
 765                         skb_reserve( pkt_copy, 8 - ((SIZE_PTR)( pkt_copy->data ) & 7 ));//force pkt_copy->data at 8-byte alignment address
 766                         skb_reserve( pkt_copy, shift_sz );//force ip_hdr at 8-byte alignment address according to shift_sz.
 767                         _rtw_memcpy(pkt_copy->data, (pbuf + pattrib->shift_sz + pattrib->drvinfo_sz + RXDESC_SIZE), skb_len);
 768                         precvframe->u.hdr.rx_data = precvframe->u.hdr.rx_tail = pkt_copy->data;
 769                 }
 770                 else
 771                 {
 772                         DBG_8192C("recvbuf2recvframe:can not allocate memory for skb copy\n");
 773                         //precvframe->u.hdr.pkt = rtw_skb_clone(pskb);
 774                         //precvframe->u.hdr.rx_head = precvframe->u.hdr.rx_data = precvframe->u.hdr.rx_tail = pbuf;
 775                         //precvframe->u.hdr.rx_end = pbuf + (pkt_offset>1612?pkt_offset:1612);
 776
 777                         precvframe->u.hdr.pkt = NULL;
 778                         rtw_free_recvframe(precvframe, pfree_recv_queue);
 779
 780                         goto _exit_recvbuf2recvframe;
 781                 }
 782
 783                 recvframe_put(precvframe, skb_len);
 784                 //recvframe_pull(precvframe, drvinfo_sz + RXDESC_SIZE);
 785
 786                 if (pattrib->physt)
 787                 {
 788                         pphy_info = (struct phy_stat*)(pbuf + RXDESC_OFFSET);
 789                         update_recvframe_phyinfo(precvframe, pphy_info);
 790                 }
 791
 792 #ifdef CONFIG_USB_RX_AGGREGATION
 793                 switch(pHalData->UsbRxAggMode)
 794                 {
 795                         case USB_RX_AGG_DMA:
 796                         case USB_RX_AGG_MIX:
 797                                 pkt_offset = (u16)_RND128(pkt_offset);
 798                                 break;
 799                                 case USB_RX_AGG_USB:
 800                                 pkt_offset = (u16)_RND4(pkt_offset);
 801                                 break;
 802                         case USB_RX_AGG_DISABLE:
 803                         default:
 804                                 break;
 805                 }
 806 #endif
 807
 808                 if(rtw_recv_entry(precvframe) != _SUCCESS)
 809                 {
 810                         RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("recvbuf2recvframe: rtw_recv_entry(precvframe) != _SUCCESS\n"));
 811                 }
 812
 813                 pkt_cnt--;
 814                 transfer_len -= pkt_offset;
 815                 pbuf += pkt_offset;
 816                 precvframe = NULL;
 817                 pkt_copy = NULL;
 818
 819                 if(transfer_len>0 && pkt_cnt==0)
 820                         pkt_cnt = (le32_to_cpu(prxstat->rxdw2)>>16) & 0xff;
 821
 822         }while((transfer_len>0) && (pkt_cnt>0));
 823
 824 _exit_recvbuf2recvframe:
 825
 826         return _SUCCESS;
 827 }
 828
 829 void rtl8192cu_recv_tasklet(void *priv)
 830 {
 831         struct recv_buf *precvbuf = NULL;
 832         _adapter        *padapter = (_adapter*)priv;
 833         struct recv_priv        *precvpriv = &padapter->recvpriv;
 834
 835         while (NULL != (precvbuf = rtw_dequeue_recvbuf(&precvpriv->recv_buf_pending_queue)))
 836         {
 837                 if ((padapter->bDriverStopped == _TRUE)||(padapter->bSurpriseRemoved== _TRUE))
 838                 {
 839                         DBG_8192C("recv_tasklet => bDriverStopped or bSurpriseRemoved \n");
 840
 841                         break;
 842                 }
 843
 844
 845                 recvbuf2recvframe(padapter, precvbuf);
 846
 847                 rtw_read_port(padapter, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
 848         }
 849
 850 }
 851
 852 static void usb_read_port_complete(struct urb *purb, struct pt_regs *regs)
 853 {
 854         struct recv_buf *precvbuf = (struct recv_buf *)purb->context;
 855         _adapter                        *padapter =(_adapter *)precvbuf->adapter;
 856         struct recv_priv        *precvpriv = &padapter->recvpriv;
 857
 858         RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port_complete!!!\n"));
 859
 860         precvpriv->rx_pending_cnt --;
 861
 862         if(padapter->bSurpriseRemoved || padapter->bDriverStopped||padapter->bReadPortCancel)
 863         {
 864                 RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)\n", padapter->bDriverStopped, padapter->bSurpriseRemoved));
 865
 866                 goto exit;
 867         }
 868
 869         if(purb->status==0)//SUCCESS
 870         {
 871                 if ((purb->actual_length > MAX_RECVBUF_SZ) || (purb->actual_length < RXDESC_SIZE))
 872                 {
 873                         RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port_complete: (purb->actual_length > MAX_RECVBUF_SZ) || (purb->actual_length < RXDESC_SIZE)\n"));
 874
 875                         rtw_read_port(padapter, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
 876                 }
 877                 else
 878                 {
 879                         rtw_reset_continual_io_error(adapter_to_dvobj(padapter));
 880
 881                         precvbuf->transfer_len = purb->actual_length;
 882
 883                         //rtw_enqueue_rx_transfer_buffer(precvpriv, rx_transfer_buf);
 884                         rtw_enqueue_recvbuf(precvbuf, &precvpriv->recv_buf_pending_queue);
 885
 886                         tasklet_schedule(&precvpriv->recv_tasklet);
 887                 }
 888         }
 889         else
 890         {
 891                 RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port_complete : purb->status(%d) != 0 \n", purb->status));
 892
 893                 DBG_8192C("###=> usb_read_port_complete => urb status(%d)\n", purb->status);
 894
 895                 if(rtw_inc_and_chk_continual_io_error(adapter_to_dvobj(padapter)) == _TRUE ){
 896                         padapter->bSurpriseRemoved = _TRUE;
 897                 }
 898
 899                 switch(purb->status) {
 900                         case -EINVAL:
 901                         case -EPIPE:
 902                         case -ENODEV:
 903                         case -ESHUTDOWN:
 904                                 //padapter->bSurpriseRemoved=_TRUE;
 905                                 RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port_complete:bSurpriseRemoved=TRUE\n"));
 906                         case -ENOENT:
 907                                 padapter->bDriverStopped=_TRUE;
 908                                 RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port_complete:bDriverStopped=TRUE\n"));
 909                                 break;
 910                         case -EPROTO:
 911                         case -EILSEQ:
 912                         case -ETIME:
 913                         case -ECOMM:
 914                         case -EOVERFLOW:
 915                                 #ifdef DBG_CONFIG_ERROR_DETECT
 916                                 {
 917                                         HAL_DATA_TYPE   *pHalData = GET_HAL_DATA(padapter);
 918                                         pHalData->srestpriv.Wifi_Error_Status = USB_READ_PORT_FAIL;
 919                                 }
 920                                 #endif
 921                                 rtw_read_port(padapter, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
 922                                 break;
 923                         case -EINPROGRESS:
 924                                 DBG_8192C("ERROR: URB IS IN PROGRESS!/n");
 925                                 break;
 926                         default:
 927                                 break;
 928                 }
 929
 930         }
 931
 932 exit:
 933
 934 _func_exit_;
 935
 936 }
 937
 938 static u32 usb_read_port(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *rmem)
 939 {
 940         int err;
 941         unsigned int pipe;
 942         u32 ret = _SUCCESS;
 943         PURB purb = NULL;
 944         struct recv_buf *precvbuf = (struct recv_buf *)rmem;
 945         _adapter                *adapter = pintfhdl->padapter;
 946         struct dvobj_priv       *pdvobj = adapter_to_dvobj(adapter);
 947         struct recv_priv        *precvpriv = &adapter->recvpriv;
 948         struct usb_device       *pusbd = pdvobj->pusbdev;
 949
 950 _func_enter_;
 951
 952         if(adapter->bDriverStopped || adapter->bSurpriseRemoved ||dvobj_to_pwrctl(pdvobj)->pnp_bstop_trx)
 953         {
 954                 RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port:( padapter->bDriverStopped ||padapter->bSurpriseRemoved ||pwrctl->pnp_bstop_trx)!!!\n"));
 955                 return _FAIL;
 956         }
 957
 958         if(precvbuf !=NULL)
 959         {
 960                 rtl8192cu_init_recvbuf(adapter, precvbuf);
 961
 962                 if(precvbuf->pbuf)
 963                 {
 964                         precvpriv->rx_pending_cnt++;
 965
 966                         purb = precvbuf->purb;
 967
 968                         //translate DMA FIFO addr to pipehandle
 969                         pipe = ffaddr2pipehdl(pdvobj, addr);
 970
 971                         usb_fill_bulk_urb(purb, pusbd, pipe,
 972                                                 precvbuf->pbuf,
 973                                                 MAX_RECVBUF_SZ,
 974                                                 usb_read_port_complete,
 975                                                 precvbuf);//context is precvbuf
 976
 977                         purb->transfer_dma = precvbuf->dma_transfer_addr;
 978                         purb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 979
 980                         err = usb_submit_urb(purb, GFP_ATOMIC);
 981                         if((err) && (err != (-EPERM)))
 982                         {
 983                                 RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("cannot submit rx in-token(err=0x%.8x), URB_STATUS =0x%.8x", err, purb->status));
 984                                 DBG_8192C("cannot submit rx in-token(err = 0x%08x),urb_status = %d\n",err,purb->status);
 985                                 ret = _FAIL;
 986                         }
 987
 988                 }
 989
 990         }
 991         else
 992         {
 993                 RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port:precvbuf ==NULL\n"));
 994                 ret = _FAIL;
 995         }
 996
 997 _func_exit_;
 998
 999         return ret;
1000 }
1001 #else   // CONFIG_USE_USB_BUFFER_ALLOC_RX
1002 static s32 pre_recv_entry(union recv_frame *precvframe, struct recv_stat *prxstat, struct phy_stat *pphy_info)
1003 {
1004         s32 ret=_SUCCESS;
1005 #ifdef CONFIG_CONCURRENT_MODE
1006         u8 *primary_myid, *secondary_myid, *paddr1;
1007         union recv_frame        *precvframe_if2 = NULL;
1008         _adapter *primary_padapter = precvframe->u.hdr.adapter;
1009         _adapter *secondary_padapter = primary_padapter->pbuddy_adapter;
1010         struct recv_priv *precvpriv = &primary_padapter->recvpriv;
1011         _queue *pfree_recv_queue = &precvpriv->free_recv_queue;
1012         u8      *pbuf = precvframe->u.hdr.rx_data;
1013
1014         if(!secondary_padapter)
1015                 return ret;
1016
1017         paddr1 = GetAddr1Ptr(precvframe->u.hdr.rx_data);
1018
1019         if(IS_MCAST(paddr1) == _FALSE)//unicast packets
1020         {
1021                 //primary_myid = myid(&primary_padapter->eeprompriv);
1022                 secondary_myid = myid(&secondary_padapter->eeprompriv);
1023
1024                 if(_rtw_memcmp(paddr1, secondary_myid, ETH_ALEN))
1025                 {
1026                         //change to secondary interface
1027                         precvframe->u.hdr.adapter = secondary_padapter;
1028                 }
1029
1030                 //ret = recv_entry(precvframe);
1031
1032         }
1033         else // Handle BC/MC Packets
1034         {
1035
1036                 u8 clone = _TRUE;
1037 #if 0
1038                 u8 type, subtype, *paddr2, *paddr3;
1039
1040                 type =  GetFrameType(pbuf);
1041                 subtype = GetFrameSubType(pbuf); //bit(7)~bit(2)
1042
1043                 switch (type)
1044                 {
1045                         case WIFI_MGT_TYPE: //Handle BC/MC mgnt Packets
1046                                 if(subtype == WIFI_BEACON)
1047                                 {
1048                                         paddr3 = GetAddr3Ptr(precvframe->u.hdr.rx_data);
1049
1050                                         if (check_fwstate(&secondary_padapter->mlmepriv, _FW_LINKED) &&
1051                                                 _rtw_memcmp(paddr3, get_bssid(&secondary_padapter->mlmepriv), ETH_ALEN))
1052                                         {
1053                                                 //change to secondary interface
1054                                                 precvframe->u.hdr.adapter = secondary_padapter;
1055                                                 clone = _FALSE;
1056                                         }
1057
1058                                         if(check_fwstate(&primary_padapter->mlmepriv, _FW_LINKED) &&
1059                                                 _rtw_memcmp(paddr3, get_bssid(&primary_padapter->mlmepriv), ETH_ALEN))
1060                                         {
1061                                                 if(clone==_FALSE)
1062                                                 {
1063                                                         clone = _TRUE;
1064                                                 }
1065                                                 else
1066                                                 {
1067                                                         clone = _FALSE;
1068                                                 }
1069
1070                                                 precvframe->u.hdr.adapter = primary_padapter;
1071                                         }
1072
1073                                         if(check_fwstate(&primary_padapter->mlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING) ||
1074                                                 check_fwstate(&secondary_padapter->mlmepriv, _FW_UNDER_SURVEY|_FW_UNDER_LINKING))
1075                                         {
1076                                                 clone = _TRUE;
1077                                                 precvframe->u.hdr.adapter = primary_padapter;
1078                                         }
1079
1080                                 }
1081                                 else if(subtype == WIFI_PROBEREQ)
1082                                 {
1083                                         //probe req frame is only for interface2
1084                                         //change to secondary interface
1085                                         precvframe->u.hdr.adapter = secondary_padapter;
1086                                         clone = _FALSE;
1087                                 }
1088                                 break;
1089                         case WIFI_CTRL_TYPE: // Handle BC/MC ctrl Packets
1090
1091                                 break;
1092                         case WIFI_DATA_TYPE: //Handle BC/MC data Packets
1093                                         //Notes: AP MODE never rx BC/MC data packets
1094
1095                                 paddr2 = GetAddr2Ptr(precvframe->u.hdr.rx_data);
1096
1097                                 if(_rtw_memcmp(paddr2, get_bssid(&secondary_padapter->mlmepriv), ETH_ALEN))
1098                                 {
1099                                         //change to secondary interface
1100                                         precvframe->u.hdr.adapter = secondary_padapter;
1101                                         clone = _FALSE;
1102                                 }
1103
1104                                 break;
1105                         default:
1106
1107                                 break;
1108                 }
1109 #endif
1110
1111                 if(_TRUE == clone)
1112                 {
1113                         //clone/copy to if2
1114                         u8 shift_sz = 0;
1115                         u32 alloc_sz, skb_len;
1116                         _pkt     *pkt_copy = NULL;
1117                         struct rx_pkt_attrib *pattrib = NULL;
1118
1119                         precvframe_if2 = rtw_alloc_recvframe(pfree_recv_queue);
1120                         if(precvframe_if2)
1121                         {
1122                                 precvframe_if2->u.hdr.adapter = secondary_padapter;
1123
1124                                 _rtw_init_listhead(&precvframe_if2->u.hdr.list);
1125                                 precvframe_if2->u.hdr.precvbuf = NULL;  //can't access the precvbuf for new arch.
1126                                 precvframe_if2->u.hdr.len=0;
1127
1128                                 _rtw_memcpy(&precvframe_if2->u.hdr.attrib, &precvframe->u.hdr.attrib, sizeof(struct rx_pkt_attrib));
1129
1130                                 pattrib = &precvframe_if2->u.hdr.attrib;
1131
1132                                 //      Modified by Albert 20101213
1133                                 //      For 8 bytes IP header alignment.
1134                                 if (pattrib->qos)       //      Qos data, wireless lan header length is 26
1135                                 {
1136                                         shift_sz = 6;
1137                                 }
1138                                 else
1139                                 {
1140                                         shift_sz = 0;
1141                                 }
1142
1143                                 skb_len = pattrib->pkt_len;
1144
1145                                 // for first fragment packet, driver need allocate 1536+drvinfo_sz+RXDESC_SIZE to defrag packet.
1146                                 // modify alloc_sz for recvive crc error packet by thomas 2011-06-02
1147                                 if((pattrib->mfrag == 1)&&(pattrib->frag_num == 0)){
1148                                         //alloc_sz = 1664;      //1664 is 128 alignment.
1149                                         if(skb_len <= 1650)
1150                                                 alloc_sz = 1664;
1151                                         else
1152                                                 alloc_sz = skb_len + 14;
1153                                 }
1154                                 else {
1155                                         alloc_sz = skb_len;
1156                                         //      6 is for IP header 8 bytes alignment in QoS packet case.
1157                                         //      8 is for skb->data 4 bytes alignment.
1158                                         alloc_sz += 14;
1159                                 }
1160
1161                                 pkt_copy = rtw_skb_alloc(alloc_sz);
1162
1163                                 if(pkt_copy)
1164                                 {
1165                                         pkt_copy->dev = secondary_padapter->pnetdev;
1166                                         precvframe_if2->u.hdr.pkt = pkt_copy;
1167                                         precvframe_if2->u.hdr.rx_head = pkt_copy->data;
1168                                         precvframe_if2->u.hdr.rx_end = pkt_copy->data + alloc_sz;
1169                                         skb_reserve( pkt_copy, 8 - ((SIZE_PTR)( pkt_copy->data ) & 7 ));//force pkt_copy->data at 8-byte alignment address
1170                                         skb_reserve( pkt_copy, shift_sz );//force ip_hdr at 8-byte alignment address according to shift_sz.
1171                                         _rtw_memcpy(pkt_copy->data, pbuf, skb_len);
1172                                         precvframe_if2->u.hdr.rx_data = precvframe_if2->u.hdr.rx_tail = pkt_copy->data;
1173
1174
1175                                         recvframe_put(precvframe_if2, skb_len);
1176                                         //recvframe_pull(precvframe_if2, drvinfo_sz + RXDESC_SIZE);
1177                                         if(pphy_info)
1178                                         update_recvframe_phyinfo(precvframe_if2, pphy_info);
1179                                         //rtl8192c_translate_rx_signal_stuff(precvframe_if2, pphy_info);
1180
1181                                         ret = rtw_recv_entry(precvframe_if2);
1182
1183                                 } else {
1184                                         rtw_free_recvframe(precvframe_if2, pfree_recv_queue);
1185                                         DBG_8192C("%s()-%d: alloc_skb() failed!\n", __FUNCTION__, __LINE__);
1186                                 }
1187
1188                         }
1189
1190                 }
1191
1192         }
1193
1194         ret = rtw_recv_entry(precvframe);
1195
1196 #endif
1197
1198         return ret;
1199
1200 }
1201
1202 static int recvbuf2recvframe(_adapter *padapter, _pkt *pskb)
1203 {
1204         u8      *pbuf;
1205         u8      shift_sz = 0;
1206         u16     pkt_cnt;
1207         u32     pkt_offset, skb_len, alloc_sz;
1208         s32     transfer_len;
1209         struct recv_stat        *prxstat;
1210         struct phy_stat *pphy_info = NULL;
1211         _pkt                            *pkt_copy = NULL;
1212         union recv_frame        *precvframe = NULL;
1213         struct rx_pkt_attrib    *pattrib = NULL;
1214         HAL_DATA_TYPE   *pHalData = GET_HAL_DATA(padapter);
1215         struct recv_priv        *precvpriv = &padapter->recvpriv;
1216         _queue                  *pfree_recv_queue = &precvpriv->free_recv_queue;
1217
1218
1219         transfer_len = (s32)pskb->len;
1220         pbuf = pskb->data;
1221
1222         prxstat = (struct recv_stat *)pbuf;
1223         pkt_cnt = (le32_to_cpu(prxstat->rxdw2)>>16) & 0xff;
1224
1225 #if 0 //temp remove when disable usb rx aggregation
1226         if((pkt_cnt > 10) || (pkt_cnt < 1) || (transfer_len<RXDESC_SIZE) ||(pkt_len<=0))
1227         {
1228                 return _FAIL;
1229         }
1230 #endif
1231
1232         do{
1233                 RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
1234                          ("recvbuf2recvframe: rxdesc=offsset 0:0x%08x, 4:0x%08x, 8:0x%08x, C:0x%08x\n",
1235                           prxstat->rxdw0, prxstat->rxdw1, prxstat->rxdw2, prxstat->rxdw4));
1236
1237                 prxstat = (struct recv_stat *)pbuf;
1238
1239                 precvframe = rtw_alloc_recvframe(pfree_recv_queue);
1240                 if(precvframe==NULL)
1241                 {
1242                         RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("recvbuf2recvframe: precvframe==NULL\n"));
1243                         DBG_8192C("%s()-%d: rtw_alloc_recvframe() failed! RX Drop!\n", __FUNCTION__, __LINE__);
1244                         goto _exit_recvbuf2recvframe;
1245                 }
1246
1247                 _rtw_init_listhead(&precvframe->u.hdr.list);
1248                 precvframe->u.hdr.precvbuf = NULL;      //can't access the precvbuf for new arch.
1249                 precvframe->u.hdr.len=0;
1250
1251 //              rtl8192c_query_rx_desc_status(precvframe, prxstat);
1252                 update_recvframe_attrib(precvframe, prxstat);
1253
1254                 pattrib = &precvframe->u.hdr.attrib;
1255
1256                 if ((padapter->registrypriv.mp_mode == 0) && (pattrib->crc_err)){
1257                         DBG_8192C("%s()-%d: RX Warning! rx CRC ERROR !!\n", __FUNCTION__, __LINE__);
1258                         rtw_free_recvframe(precvframe, pfree_recv_queue);
1259                         goto _exit_recvbuf2recvframe;
1260                 }
1261
1262                 pkt_offset = RXDESC_SIZE + pattrib->drvinfo_sz + pattrib->shift_sz + pattrib->pkt_len;
1263
1264                 if((pattrib->pkt_len<=0) || (pkt_offset>transfer_len))
1265                 {
1266                         RT_TRACE(_module_rtl871x_recv_c_,_drv_info_,("recvbuf2recvframe: pkt_len<=0\n"));
1267                         DBG_8192C("%s()-%d: RX Warning!\n", __FUNCTION__, __LINE__);
1268                         rtw_free_recvframe(precvframe, pfree_recv_queue);
1269                         goto _exit_recvbuf2recvframe;
1270                 }
1271
1272                 //      Modified by Albert 20101213
1273                 //      For 8 bytes IP header alignment.
1274                 if (pattrib->qos)       //      Qos data, wireless lan header length is 26
1275                 {
1276                         shift_sz = 6;
1277                 }
1278                 else
1279                 {
1280                         shift_sz = 0;
1281                 }
1282
1283                 skb_len = pattrib->pkt_len;
1284
1285                 // for first fragment packet, driver need allocate 1536+drvinfo_sz+RXDESC_SIZE to defrag packet.
1286                 // modify alloc_sz for recvive crc error packet by thomas 2011-06-02
1287                 if((pattrib->mfrag == 1)&&(pattrib->frag_num == 0)){
1288                         //alloc_sz = 1664;      //1664 is 128 alignment.
1289                         if(skb_len <= 1650)
1290                                 alloc_sz = 1664;
1291                         else
1292                                 alloc_sz = skb_len + 14;
1293                 }
1294                 else {
1295                         alloc_sz = skb_len;
1296                         //      6 is for IP header 8 bytes alignment in QoS packet case.
1297                         //      8 is for skb->data 4 bytes alignment.
1298                         alloc_sz += 14;
1299                 }
1300
1301                 pkt_copy = rtw_skb_alloc(alloc_sz);
1302
1303                 if(pkt_copy)
1304                 {
1305                         pkt_copy->dev = padapter->pnetdev;
1306                         precvframe->u.hdr.pkt = pkt_copy;
1307                         precvframe->u.hdr.rx_head = pkt_copy->data;
1308                         precvframe->u.hdr.rx_end = pkt_copy->data + alloc_sz;
1309                         skb_reserve( pkt_copy, 8 - ((SIZE_PTR)( pkt_copy->data ) & 7 ));//force pkt_copy->data at 8-byte alignment address
1310                         skb_reserve( pkt_copy, shift_sz );//force ip_hdr at 8-byte alignment address according to shift_sz.
1311                         _rtw_memcpy(pkt_copy->data, (pbuf + pattrib->shift_sz + pattrib->drvinfo_sz + RXDESC_SIZE), skb_len);
1312                         precvframe->u.hdr.rx_data = precvframe->u.hdr.rx_tail = pkt_copy->data;
1313                 }
1314                 else
1315                 {
1316                         if((pattrib->mfrag == 1)&&(pattrib->frag_num == 0))
1317                         {
1318                                 DBG_8192C("recvbuf2recvframe: alloc_skb fail , drop frag frame \n");
1319                                 rtw_free_recvframe(precvframe, pfree_recv_queue);
1320                                 goto _exit_recvbuf2recvframe;
1321                         }
1322
1323                         precvframe->u.hdr.pkt = rtw_skb_clone(pskb);
1324                         if(precvframe->u.hdr.pkt)
1325                         {
1326                                 precvframe->u.hdr.rx_head = precvframe->u.hdr.rx_data = precvframe->u.hdr.rx_tail
1327                                         = pbuf+ pattrib->drvinfo_sz + RXDESC_SIZE;
1328                                 precvframe->u.hdr.rx_end =  pbuf +pattrib->drvinfo_sz + RXDESC_SIZE+ alloc_sz;
1329                         }
1330                         else
1331                         {
1332                                 DBG_8192C("recvbuf2recvframe: rtw_skb_clone fail\n");
1333                                 rtw_free_recvframe(precvframe, pfree_recv_queue);
1334                                 goto _exit_recvbuf2recvframe;
1335                         }
1336
1337                 }
1338
1339                 recvframe_put(precvframe, skb_len);
1340                 //recvframe_pull(precvframe, drvinfo_sz + RXDESC_SIZE);
1341
1342                 if (pattrib->physt)
1343                 {
1344                         pphy_info = (struct phy_stat*)(pbuf + RXDESC_OFFSET);
1345                         update_recvframe_phyinfo(precvframe, pphy_info);
1346                 }
1347
1348 #ifdef CONFIG_USB_RX_AGGREGATION
1349                 switch(pHalData->UsbRxAggMode)
1350                 {
1351                         case USB_RX_AGG_DMA:
1352                         case USB_RX_AGG_MIX:
1353                                 pkt_offset = (u16)_RND128(pkt_offset);
1354                                 break;
1355                                 case USB_RX_AGG_USB:
1356                                 pkt_offset = (u16)_RND4(pkt_offset);
1357                                 break;
1358                         case USB_RX_AGG_DISABLE:
1359                         default:
1360                                 break;
1361                 }
1362 #endif
1363
1364 #ifdef CONFIG_CONCURRENT_MODE
1365                 if(pre_recv_entry(precvframe, prxstat, pphy_info) != _SUCCESS)
1366                 {
1367                         RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("recvbuf2recvframe: recv_entry(precvframe) != _SUCCESS\n"));
1368                 }
1369 #else
1370                 if(rtw_recv_entry(precvframe) != _SUCCESS)
1371                 {
1372                         RT_TRACE(_module_rtl871x_recv_c_,_drv_err_,("recvbuf2recvframe: rtw_recv_entry(precvframe) != _SUCCESS\n"));
1373                 }
1374 #endif
1375
1376                 pkt_cnt--;
1377                 transfer_len -= pkt_offset;
1378                 pbuf += pkt_offset;
1379                 precvframe = NULL;
1380                 pkt_copy = NULL;
1381
1382                 if(transfer_len>0 && pkt_cnt==0)
1383                         pkt_cnt = (le32_to_cpu(prxstat->rxdw2)>>16) & 0xff;
1384
1385         }while((transfer_len>0) && (pkt_cnt>0));
1386
1387 _exit_recvbuf2recvframe:
1388
1389         return _SUCCESS;
1390 }
1391
1392 void rtl8192cu_recv_tasklet(void *priv)
1393 {
1394         _pkt                    *pskb;
1395         _adapter                *padapter = (_adapter*)priv;
1396         struct recv_priv        *precvpriv = &padapter->recvpriv;
1397
1398         while (NULL != (pskb = skb_dequeue(&precvpriv->rx_skb_queue)))
1399         {
1400                 if ((padapter->bDriverStopped == _TRUE)||(padapter->bSurpriseRemoved== _TRUE))
1401                 {
1402                         DBG_8192C("recv_tasklet => bDriverStopped or bSurpriseRemoved \n");
1403                         rtw_skb_free(pskb);
1404                         break;
1405                 }
1406
1407                 recvbuf2recvframe(padapter, pskb);
1408
1409 #ifdef CONFIG_PREALLOC_RECV_SKB
1410
1411                 skb_reset_tail_pointer(pskb);
1412
1413                 pskb->len = 0;
1414
1415                 skb_queue_tail(&precvpriv->free_recv_skb_queue, pskb);
1416
1417 #else
1418                 rtw_skb_free(pskb);
1419 #endif
1420
1421         }
1422
1423 }
1424
1425
1426 static void usb_read_port_complete(struct urb *purb, struct pt_regs *regs)
1427 {
1428         _irqL irqL;
1429         uint isevt, *pbuf;
1430         struct recv_buf *precvbuf = (struct recv_buf *)purb->context;
1431         _adapter                        *padapter =(_adapter *)precvbuf->adapter;
1432         struct recv_priv        *precvpriv = &padapter->recvpriv;
1433
1434         RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port_complete!!!\n"));
1435
1436         //_enter_critical(&precvpriv->lock, &irqL);
1437         //precvbuf->irp_pending=_FALSE;
1438         //precvpriv->rx_pending_cnt --;
1439         //_exit_critical(&precvpriv->lock, &irqL);
1440
1441         precvpriv->rx_pending_cnt --;
1442
1443         //if(precvpriv->rx_pending_cnt== 0)
1444         //{
1445         //      RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port_complete: rx_pending_cnt== 0, set allrxreturnevt!\n"));
1446         //      _rtw_up_sema(&precvpriv->allrxreturnevt);
1447         //}
1448
1449         if(padapter->bSurpriseRemoved || padapter->bDriverStopped||padapter->bReadPortCancel)
1450         {
1451                 RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port_complete:bDriverStopped(%d) OR bSurpriseRemoved(%d)\n", padapter->bDriverStopped, padapter->bSurpriseRemoved));
1452
1453         #ifdef CONFIG_PREALLOC_RECV_SKB
1454                 precvbuf->reuse = _TRUE;
1455         #else
1456                 if(precvbuf->pskb){
1457                         DBG_8192C("==> free skb(%p)\n",precvbuf->pskb);
1458                         rtw_skb_free(precvbuf->pskb);
1459                 }
1460         #endif
1461                 DBG_8192C("%s()-%d: RX Warning! bDriverStopped(%d) OR bSurpriseRemoved(%d) bReadPortCancel(%d)\n",
1462                 __FUNCTION__, __LINE__,padapter->bDriverStopped, padapter->bSurpriseRemoved,padapter->bReadPortCancel);
1463                 goto exit;
1464         }
1465
1466         if(purb->status==0)//SUCCESS
1467         {
1468                 if ((purb->actual_length > MAX_RECVBUF_SZ) || (purb->actual_length < RXDESC_SIZE))
1469                 {
1470                         RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port_complete: (purb->actual_length > MAX_RECVBUF_SZ) || (purb->actual_length < RXDESC_SIZE)\n"));
1471                         precvbuf->reuse = _TRUE;
1472                         rtw_read_port(padapter, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
1473                         DBG_8192C("%s()-%d: RX Warning!\n", __FUNCTION__, __LINE__);
1474                 }
1475                 else
1476                 {
1477                         rtw_reset_continual_io_error(adapter_to_dvobj(padapter));
1478
1479                         precvbuf->transfer_len = purb->actual_length;
1480                         skb_put(precvbuf->pskb, purb->actual_length);
1481                         skb_queue_tail(&precvpriv->rx_skb_queue, precvbuf->pskb);
1482
1483                         if (skb_queue_len(&precvpriv->rx_skb_queue)<=1)
1484                                 tasklet_schedule(&precvpriv->recv_tasklet);
1485
1486                         precvbuf->pskb = NULL;
1487                         precvbuf->reuse = _FALSE;
1488                         rtw_read_port(padapter, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
1489                 }
1490         }
1491         else
1492         {
1493                 RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port_complete : purb->status(%d) != 0 \n", purb->status));
1494
1495                 DBG_8192C("###=> usb_read_port_complete => urb status(%d)\n", purb->status);
1496
1497                 if(rtw_inc_and_chk_continual_io_error(adapter_to_dvobj(padapter)) == _TRUE ){
1498                         padapter->bSurpriseRemoved = _TRUE;
1499                 }
1500
1501                 switch(purb->status) {
1502                         case -EINVAL:
1503                         case -EPIPE:
1504                         case -ENODEV:
1505                         case -ESHUTDOWN:
1506                                 //padapter->bSurpriseRemoved=_TRUE;
1507                                 RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port_complete:bSurpriseRemoved=TRUE\n"));
1508                         case -ENOENT:
1509                                 padapter->bDriverStopped=_TRUE;
1510                                 RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port_complete:bDriverStopped=TRUE\n"));
1511                                 break;
1512                         case -EPROTO:
1513                         case -EILSEQ:
1514                         case -ETIME:
1515                         case -ECOMM:
1516                         case -EOVERFLOW:
1517                                 #ifdef DBG_CONFIG_ERROR_DETECT
1518                                 {
1519                                         HAL_DATA_TYPE   *pHalData = GET_HAL_DATA(padapter);
1520                                         pHalData->srestpriv.Wifi_Error_Status = USB_READ_PORT_FAIL;
1521                                 }
1522                                 #endif
1523                                 precvbuf->reuse = _TRUE;
1524                                 rtw_read_port(padapter, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
1525                                 break;
1526                         case -EINPROGRESS:
1527                                 DBG_8192C("ERROR: URB IS IN PROGRESS!/n");
1528                                 break;
1529                         default:
1530                                 break;
1531                 }
1532
1533         }
1534
1535 exit:
1536
1537 _func_exit_;
1538
1539 }
1540
1541 static u32 usb_read_port(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *rmem)
1542 {
1543         _irqL irqL;
1544         int err;
1545         unsigned int pipe;
1546         SIZE_PTR tmpaddr=0;
1547         SIZE_PTR alignment=0;
1548         u32 ret = _SUCCESS;
1549         PURB purb = NULL;
1550         struct recv_buf *precvbuf = (struct recv_buf *)rmem;
1551         _adapter                *adapter = pintfhdl->padapter;
1552         struct dvobj_priv       *pdvobj = adapter_to_dvobj(adapter);
1553         struct recv_priv        *precvpriv = &adapter->recvpriv;
1554         struct usb_device       *pusbd = pdvobj->pusbdev;
1555
1556
1557 _func_enter_;
1558
1559         if(adapter->bDriverStopped || adapter->bSurpriseRemoved ||dvobj_to_pwrctl(pdvobj)->pnp_bstop_trx)
1560         {
1561                 RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port:( padapter->bDriverStopped ||padapter->bSurpriseRemoved ||pwrctl->pnp_bstop_trx)!!!\n"));
1562                 return _FAIL;
1563         }
1564
1565 #ifdef CONFIG_PREALLOC_RECV_SKB
1566         if((precvbuf->reuse == _FALSE) || (precvbuf->pskb == NULL))
1567         {
1568                 if (NULL != (precvbuf->pskb = skb_dequeue(&precvpriv->free_recv_skb_queue)))
1569                 {
1570                         precvbuf->reuse = _TRUE;
1571                 }
1572         }
1573 #endif
1574
1575
1576         if(precvbuf !=NULL)
1577         {
1578                 rtl8192cu_init_recvbuf(adapter, precvbuf);
1579
1580                 //re-assign for linux based on skb
1581                 if((precvbuf->reuse == _FALSE) || (precvbuf->pskb == NULL))
1582                 {
1583                         precvbuf->pskb = rtw_skb_alloc(MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ);
1584
1585                         if(precvbuf->pskb == NULL)
1586                         {
1587                                 RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("init_recvbuf(): alloc_skb fail!\n"));
1588                                 return _FAIL;
1589                         }
1590
1591                         tmpaddr = (SIZE_PTR)precvbuf->pskb->data;
1592                         alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
1593                         skb_reserve(precvbuf->pskb, (RECVBUFF_ALIGN_SZ - alignment));
1594
1595                         precvbuf->phead = precvbuf->pskb->head;
1596                         precvbuf->pdata = precvbuf->pskb->data;
1597                         precvbuf->ptail = skb_tail_pointer(precvbuf->pskb);
1598                         precvbuf->pend = skb_end_pointer(precvbuf->pskb);
1599                         precvbuf->pbuf = precvbuf->pskb->data;
1600                 }
1601                 else//reuse skb
1602                 {
1603                         precvbuf->phead = precvbuf->pskb->head;
1604                         precvbuf->pdata = precvbuf->pskb->data;
1605                         precvbuf->ptail = skb_tail_pointer(precvbuf->pskb);
1606                         precvbuf->pend = skb_end_pointer(precvbuf->pskb);
1607                 precvbuf->pbuf = precvbuf->pskb->data;
1608
1609                         precvbuf->reuse = _FALSE;
1610                 }
1611
1612                 //_enter_critical(&precvpriv->lock, &irqL);
1613                 //precvpriv->rx_pending_cnt++;
1614                 //precvbuf->irp_pending = _TRUE;
1615                 //_exit_critical(&precvpriv->lock, &irqL);
1616
1617                 precvpriv->rx_pending_cnt++;
1618
1619                 purb = precvbuf->purb;
1620
1621                 //translate DMA FIFO addr to pipehandle
1622                 pipe = ffaddr2pipehdl(pdvobj, addr);
1623
1624                 usb_fill_bulk_urb(purb, pusbd, pipe,
1625                                                 precvbuf->pbuf,
1626                                                 MAX_RECVBUF_SZ,
1627                                                 usb_read_port_complete,
1628                                                 precvbuf);//context is precvbuf
1629
1630                 err = usb_submit_urb(purb, GFP_ATOMIC);
1631                 if((err) && (err != (-EPERM)))
1632                 {
1633                         RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("cannot submit rx in-token(err=0x%.8x), URB_STATUS =0x%.8x", err, purb->status));
1634                         DBG_8192C("cannot submit rx in-token(err = 0x%08x),urb_status = %d\n",err,purb->status);
1635                         ret = _FAIL;
1636                 }
1637         }
1638         else
1639         {
1640                 RT_TRACE(_module_hci_ops_os_c_,_drv_err_,("usb_read_port:precvbuf ==NULL\n"));
1641                 ret = _FAIL;
1642         }
1643
1644 _func_exit_;
1645
1646         return ret;
1647 }
1648 #endif  // CONFIG_USE_USB_BUFFER_ALLOC_RX
1649
1650 void rtl8192cu_xmit_tasklet(void *priv)
1651 {
1652         int ret = _FALSE;
1653         _adapter *padapter = (_adapter*)priv;
1654         struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
1655
1656         if(check_fwstate(&padapter->mlmepriv, _FW_UNDER_SURVEY) == _TRUE)
1657                 return;
1658
1659         while(1)
1660         {
1661                 if ((padapter->bDriverStopped == _TRUE)||(padapter->bSurpriseRemoved== _TRUE) || (padapter->bWritePortCancel == _TRUE))
1662                 {
1663                         DBG_8192C("xmit_tasklet => bDriverStopped or bSurpriseRemoved or bWritePortCancel\n");
1664                         break;
1665                 }
1666
1667                 ret = rtl8192cu_xmitframe_complete(padapter, pxmitpriv, NULL);
1668
1669                 if(ret==_FALSE)
1670                         break;
1671
1672         }
1673
1674 }
1675
1676 void rtl8723au_set_intf_ops(struct _io_ops      *pops)
1677 {
1678         _func_enter_;
1679
1680         _rtw_memset((u8 *)pops, 0, sizeof(struct _io_ops));
1681
1682         pops->_read8 = &usb_read8;
1683         pops->_read16 = &usb_read16;
1684         pops->_read32 = &usb_read32;
1685         pops->_read_mem = &usb_read_mem;
1686         pops->_read_port = &usb_read_port;
1687
1688         pops->_write8 = &usb_write8;
1689         pops->_write16 = &usb_write16;
1690         pops->_write32 = &usb_write32;
1691         pops->_writeN = &usb_writeN;
1692
1693 #ifdef CONFIG_USB_SUPPORT_ASYNC_VDN_REQ
1694         pops->_write8_async= &usb_async_write8;
1695         pops->_write16_async = &usb_async_write16;
1696         pops->_write32_async = &usb_async_write32;
1697 #endif
1698         pops->_write_mem = &usb_write_mem;
1699         pops->_write_port = &usb_write_port;
1700
1701         pops->_read_port_cancel = &usb_read_port_cancel;
1702         pops->_write_port_cancel = &usb_write_port_cancel;
1703
1704 #ifdef CONFIG_USB_INTERRUPT_IN_PIPE
1705         pops->_read_interrupt = &usb_read_interrupt;
1706 #endif
1707
1708         _func_exit_;
1709
1710 }
1711 void rtl8723au_set_hw_type(_adapter *padapter)
1712 {
1713         padapter->chip_type = RTL8723A;
1714         padapter->HardwareType = HARDWARE_TYPE_RTL8723AU;
1715         DBG_871X("CHIP TYPE: RTL8723A\n");
1716 }