drivers/staging/vt6656/usbpipe.c

   1 /*
   2  * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  *
  20  * File: usbpipe.c
  21  *
  22  * Purpose: Handle USB control endpoint
  23  *
  24  * Author: Warren Hsu
  25  *
  26  * Date: Mar. 29, 2005
  27  *
  28  * Functions:
  29  *      CONTROLnsRequestOut - Write variable length bytes to MEM/BB/MAC/EEPROM
  30  *      CONTROLnsRequestIn - Read variable length bytes from MEM/BB/MAC/EEPROM
  31  *      ControlvWriteByte - Write one byte to MEM/BB/MAC/EEPROM
  32  *      ControlvReadByte - Read one byte from MEM/BB/MAC/EEPROM
  33  *      ControlvMaskByte - Read one byte from MEM/BB/MAC/EEPROM and clear/set some bits in the same address
  34  *
  35  * Revision History:
  36  *      04-05-2004 Jerry Chen:  Initial release
  37  *      11-24-2004 Warren Hsu: Add ControlvWriteByte,ControlvReadByte,ControlvMaskByte
  38  *
  39  */
  40
  41 #include "int.h"
  42 #include "rxtx.h"
  43 #include "dpc.h"
  44 #include "control.h"
  45 #include "desc.h"
  46 #include "device.h"
  47
  48 /*---------------------  Static Definitions -------------------------*/
  49 //endpoint def
  50 //endpoint 0: control
  51 //endpoint 1: interrupt
  52 //endpoint 2: read bulk
  53 //endpoint 3: write bulk
  54
  55 //RequestType:
  56 //#define REQUEST_OUT       (USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE) // 0x40
  57 //#define REQUEST_IN        (USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE )  //0xc0
  58 //static int          msglevel                =MSG_LEVEL_DEBUG;
  59 static int          msglevel                =MSG_LEVEL_INFO;
  60
  61
  62 #define USB_CTL_WAIT   500 //ms
  63
  64 #ifndef URB_ASYNC_UNLINK
  65 #define URB_ASYNC_UNLINK    0
  66 #endif
  67
  68 /*---------------------  Static Classes  ----------------------------*/
  69
  70 /*---------------------  Static Variables  --------------------------*/
  71
  72 /*---------------------  Static Functions  --------------------------*/
  73 static
  74 void
  75 s_nsInterruptUsbIoCompleteRead(
  76      struct urb *urb
  77     );
  78
  79
  80 static
  81 void
  82 s_nsBulkInUsbIoCompleteRead(
  83      struct urb *urb
  84     );
  85
  86
  87 static
  88 void
  89 s_nsBulkOutIoCompleteWrite(
  90      struct urb *urb
  91     );
  92
  93
  94 static
  95 void
  96 s_nsControlInUsbIoCompleteRead(
  97      struct urb *urb
  98     );
  99
 100 static
 101 void
 102 s_nsControlInUsbIoCompleteWrite(
 103      struct urb *urb
 104     );
 105
 106 /*---------------------  Export Variables  --------------------------*/
 107
 108 /*---------------------  Export Functions  --------------------------*/
 109
 110 int PIPEnsControlOutAsyn(
 111      PSDevice     pDevice,
 112      BYTE         byRequest,
 113      WORD         wValue,
 114      WORD         wIndex,
 115      WORD         wLength,
 116      PBYTE        pbyBuffer
 117     )
 118 {
 119         int ntStatus;
 120
 121     if (MP_TEST_FLAG(pDevice, fMP_DISCONNECTED))
 122         return STATUS_FAILURE;
 123
 124
 125     if (MP_TEST_FLAG(pDevice, fMP_CONTROL_WRITES)) {
 126         return STATUS_FAILURE;
 127     }
 128
 129     if (in_interrupt()) {
 130         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"in_interrupt return ..byRequest %x\n", byRequest);
 131         return STATUS_FAILURE;
 132     }
 133
 134     ntStatus = usb_control_msg(
 135                             pDevice->usb,
 136                             usb_sndctrlpipe(pDevice->usb , 0),
 137                             byRequest,
 138                             0x40, // RequestType
 139                             wValue,
 140                             wIndex,
 141                             (void *) pbyBuffer,
 142                             wLength,
 143                             HZ
 144                           );
 145     if (ntStatus >= 0) {
 146         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"usb_sndctrlpipe ntStatus= %d\n", ntStatus);
 147         ntStatus = 0;
 148     } else {
 149         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"usb_sndctrlpipe fail, ntStatus= %d\n", ntStatus);
 150     }
 151
 152     return ntStatus;
 153 }
 154
 155 int PIPEnsControlOut(
 156      PSDevice     pDevice,
 157      BYTE         byRequest,
 158      WORD         wValue,
 159      WORD         wIndex,
 160      WORD         wLength,
 161      PBYTE        pbyBuffer
 162     )
 163 {
 164         int ntStatus = 0;
 165     int ii;
 166
 167     if (MP_TEST_FLAG(pDevice, fMP_DISCONNECTED))
 168         return STATUS_FAILURE;
 169
 170     if (MP_TEST_FLAG(pDevice, fMP_CONTROL_WRITES)) {
 171         return STATUS_FAILURE;
 172     }
 173
 174         pDevice->sUsbCtlRequest.bRequestType = 0x40;
 175         pDevice->sUsbCtlRequest.bRequest = byRequest;
 176         pDevice->sUsbCtlRequest.wValue = cpu_to_le16p(&wValue);
 177         pDevice->sUsbCtlRequest.wIndex = cpu_to_le16p(&wIndex);
 178         pDevice->sUsbCtlRequest.wLength = cpu_to_le16p(&wLength);
 179         pDevice->pControlURB->transfer_flags |= URB_ASYNC_UNLINK;
 180     pDevice->pControlURB->actual_length = 0;
 181     // Notice, pbyBuffer limited point to variable buffer, can't be constant.
 182         usb_fill_control_urb(pDevice->pControlURB, pDevice->usb,
 183                          usb_sndctrlpipe(pDevice->usb , 0), (char *) &pDevice->sUsbCtlRequest,
 184                          pbyBuffer, wLength, s_nsControlInUsbIoCompleteWrite, pDevice);
 185
 186         ntStatus = usb_submit_urb(pDevice->pControlURB, GFP_ATOMIC);
 187         if (ntStatus != 0) {
 188                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"control send request submission failed: %d\n", ntStatus);
 189                 return STATUS_FAILURE;
 190         }
 191         else {
 192             MP_SET_FLAG(pDevice, fMP_CONTROL_WRITES);
 193         }
 194         spin_unlock_irq(&pDevice->lock);
 195     for (ii = 0; ii <= USB_CTL_WAIT; ii ++) {
 196         if (MP_TEST_FLAG(pDevice, fMP_CONTROL_WRITES))
 197             mdelay(1);
 198         else
 199             break;
 200         if (ii >= USB_CTL_WAIT) {
 201             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"control send request submission timeout \n");
 202             spin_lock_irq(&pDevice->lock);
 203             MP_CLEAR_FLAG(pDevice, fMP_CONTROL_WRITES);
 204             return STATUS_FAILURE;
 205         }
 206     }
 207         spin_lock_irq(&pDevice->lock);
 208
 209     return STATUS_SUCCESS;
 210 }
 211
 212 int PIPEnsControlIn(
 213      PSDevice     pDevice,
 214      BYTE         byRequest,
 215      WORD         wValue,
 216      WORD         wIndex,
 217      WORD         wLength,
 218        PBYTE   pbyBuffer
 219     )
 220 {
 221         int ntStatus = 0;
 222     int ii;
 223
 224     if (MP_TEST_FLAG(pDevice, fMP_DISCONNECTED))
 225         return STATUS_FAILURE;
 226
 227     if (MP_TEST_FLAG(pDevice, fMP_CONTROL_READS)) {
 228         return STATUS_FAILURE;
 229     }
 230         pDevice->sUsbCtlRequest.bRequestType = 0xC0;
 231         pDevice->sUsbCtlRequest.bRequest = byRequest;
 232         pDevice->sUsbCtlRequest.wValue = cpu_to_le16p(&wValue);
 233         pDevice->sUsbCtlRequest.wIndex = cpu_to_le16p(&wIndex);
 234         pDevice->sUsbCtlRequest.wLength = cpu_to_le16p(&wLength);
 235         pDevice->pControlURB->transfer_flags |= URB_ASYNC_UNLINK;
 236     pDevice->pControlURB->actual_length = 0;
 237         usb_fill_control_urb(pDevice->pControlURB, pDevice->usb,
 238                          usb_rcvctrlpipe(pDevice->usb , 0), (char *) &pDevice->sUsbCtlRequest,
 239                          pbyBuffer, wLength, s_nsControlInUsbIoCompleteRead, pDevice);
 240
 241         ntStatus = usb_submit_urb(pDevice->pControlURB, GFP_ATOMIC);
 242         if (ntStatus != 0) {
 243                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"control request submission failed: %d\n", ntStatus);
 244         }else {
 245                 MP_SET_FLAG(pDevice, fMP_CONTROL_READS);
 246     }
 247
 248         spin_unlock_irq(&pDevice->lock);
 249     for (ii = 0; ii <= USB_CTL_WAIT; ii ++) {
 250         if (MP_TEST_FLAG(pDevice, fMP_CONTROL_READS))
 251             mdelay(1);
 252         else {
 253             break;
 254         }
 255         if (ii >= USB_CTL_WAIT) {
 256             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"control rcv request submission timeout \n");
 257             spin_lock_irq(&pDevice->lock);
 258             MP_CLEAR_FLAG(pDevice, fMP_CONTROL_READS);
 259             return STATUS_FAILURE;
 260         }
 261     }
 262         spin_lock_irq(&pDevice->lock);
 263
 264     return ntStatus;
 265 }
 266
 267 static
 268 void
 269 s_nsControlInUsbIoCompleteWrite(
 270      struct urb *urb
 271     )
 272 {
 273     PSDevice        pDevice;
 274
 275         pDevice = urb->context;
 276         switch (urb->status) {
 277         case 0:
 278                 break;
 279         case -EINPROGRESS:
 280                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ctrl write urb status EINPROGRESS%d\n", urb->status);
 281                 break;
 282         case -ENOENT:
 283                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ctrl write urb status ENOENT %d\n", urb->status);
 284                 break;
 285         default:
 286                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ctrl write urb status %d\n", urb->status);
 287         }
 288
 289     MP_CLEAR_FLAG(pDevice, fMP_CONTROL_WRITES);
 290 }
 291
 292
 293
 294 /*
 295  * Description:
 296  *      Complete function of usb Control callback
 297  *
 298  * Parameters:
 299  *  In:
 300  *      pDevice     - Pointer to the adapter
 301  *
 302  *  Out:
 303  *      none
 304  *
 305  * Return Value: STATUS_INSUFFICIENT_RESOURCES or result of IoCallDriver
 306  *
 307  */
 308 static
 309 void
 310 s_nsControlInUsbIoCompleteRead(
 311      struct urb *urb
 312     )
 313 {
 314     PSDevice        pDevice;
 315
 316         pDevice = urb->context;
 317         switch (urb->status) {
 318         case 0:
 319                 break;
 320         case -EINPROGRESS:
 321                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ctrl read urb status EINPROGRESS%d\n", urb->status);
 322                 break;
 323         case -ENOENT:
 324                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ctrl read urb status = ENOENT %d\n", urb->status);
 325                 break;
 326         default:
 327                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ctrl read urb status %d\n", urb->status);
 328         }
 329
 330     MP_CLEAR_FLAG(pDevice, fMP_CONTROL_READS);
 331 }
 332
 333
 334
 335
 336 /*
 337  * Description:
 338  *      Allocates an usb interrupt in irp and calls USBD.
 339  *
 340  * Parameters:
 341  *  In:
 342  *      pDevice     - Pointer to the adapter
 343  *  Out:
 344  *      none
 345  *
 346  * Return Value: STATUS_INSUFFICIENT_RESOURCES or result of IoCallDriver
 347  *
 348  */
 349 int PIPEnsInterruptRead(PSDevice pDevice)
 350 {
 351     int ntStatus = STATUS_FAILURE;
 352
 353     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->s_nsStartInterruptUsbRead()\n");
 354
 355     if(pDevice->intBuf.bInUse == TRUE){
 356         return (STATUS_FAILURE);
 357     }
 358     pDevice->intBuf.bInUse = TRUE;
 359 //    pDevice->bEventAvailable = FALSE;
 360     pDevice->ulIntInPosted++;
 361
 362     //
 363     // Now that we have created the urb, we will send a
 364     // request to the USB device object.
 365     //
 366     pDevice->pInterruptURB->interval = pDevice->int_interval;
 367
 368 usb_fill_bulk_urb(pDevice->pInterruptURB,
 369                 pDevice->usb,
 370                 usb_rcvbulkpipe(pDevice->usb, 1),
 371                 (void *) pDevice->intBuf.pDataBuf,
 372                 MAX_INTERRUPT_SIZE,
 373                 s_nsInterruptUsbIoCompleteRead,
 374                 pDevice);
 375
 376         ntStatus = usb_submit_urb(pDevice->pInterruptURB, GFP_ATOMIC);
 377         if (ntStatus != 0) {
 378             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Submit int URB failed %d\n", ntStatus);
 379     }
 380
 381     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"<----s_nsStartInterruptUsbRead Return(%x)\n",ntStatus);
 382     return ntStatus;
 383 }
 384
 385
 386 /*
 387  * Description:
 388  *      Complete function of usb interrupt in irp.
 389  *
 390  * Parameters:
 391  *  In:
 392  *      pDevice     - Pointer to the adapter
 393  *
 394  *  Out:
 395  *      none
 396  *
 397  * Return Value: STATUS_INSUFFICIENT_RESOURCES or result of IoCallDriver
 398  *
 399  */
 400 static
 401 void
 402 s_nsInterruptUsbIoCompleteRead(
 403      struct urb *urb
 404     )
 405
 406 {
 407     PSDevice        pDevice;
 408     int ntStatus;
 409
 410     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->s_nsInterruptUsbIoCompleteRead\n");
 411     //
 412     // The context given to IoSetCompletionRoutine is the receive buffer object
 413     //
 414     pDevice = (PSDevice)urb->context;
 415
 416     //
 417     // We have a number of cases:
 418     //      1) The USB read timed out and we received no data.
 419     //      2) The USB read timed out and we received some data.
 420     //      3) The USB read was successful and fully filled our irp buffer.
 421     //      4) The irp was cancelled.
 422     //      5) Some other failure from the USB device object.
 423     //
 424     ntStatus = urb->status;
 425
 426     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"s_nsInterruptUsbIoCompleteRead Status %d\n", ntStatus);
 427
 428     // if we were not successful, we need to free the int buffer for future use right here
 429     // otherwise interrupt data handler will free int buffer after it handle it.
 430     if (( ntStatus != STATUS_SUCCESS )) {
 431         pDevice->ulBulkInError++;
 432         pDevice->intBuf.bInUse = FALSE;
 433
 434 //        if (ntStatus == USBD_STATUS_CRC) {
 435 //            pDevice->ulIntInContCRCError++;
 436 //        }
 437
 438 //        if (ntStatus == STATUS_NOT_CONNECTED )
 439 //        {
 440             pDevice->fKillEventPollingThread = TRUE;
 441 //        }
 442         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"IntUSBIoCompleteControl STATUS = %d\n", ntStatus );
 443     } else {
 444             pDevice->ulIntInBytesRead += (unsigned long) urb->actual_length;
 445             pDevice->ulIntInContCRCError = 0;
 446             pDevice->bEventAvailable = TRUE;
 447             INTnsProcessData(pDevice);
 448     }
 449
 450     STAvUpdateUSBCounter(&pDevice->scStatistic.USB_InterruptStat, ntStatus);
 451
 452
 453     if (pDevice->fKillEventPollingThread != TRUE) {
 454        usb_fill_bulk_urb(pDevice->pInterruptURB,
 455                       pDevice->usb,
 456                       usb_rcvbulkpipe(pDevice->usb, 1),
 457                      (void *) pDevice->intBuf.pDataBuf,
 458                      MAX_INTERRUPT_SIZE,
 459                      s_nsInterruptUsbIoCompleteRead,
 460                      pDevice);
 461
 462         ntStatus = usb_submit_urb(pDevice->pInterruptURB, GFP_ATOMIC);
 463         if (ntStatus != 0) {
 464             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Submit int URB failed %d\n", ntStatus);
 465            }
 466     }
 467     //
 468     // We return STATUS_MORE_PROCESSING_REQUIRED so that the completion
 469     // routine (IofCompleteRequest) will stop working on the irp.
 470     //
 471     return ;
 472 }
 473
 474 /*
 475  * Description:
 476  *      Allocates an usb BulkIn  irp and calls USBD.
 477  *
 478  * Parameters:
 479  *  In:
 480  *      pDevice     - Pointer to the adapter
 481  *  Out:
 482  *      none
 483  *
 484  * Return Value: STATUS_INSUFFICIENT_RESOURCES or result of IoCallDriver
 485  *
 486  */
 487 int PIPEnsBulkInUsbRead(PSDevice pDevice, PRCB pRCB)
 488 {
 489         int ntStatus = 0;
 490     struct urb          *pUrb;
 491
 492
 493     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->s_nsStartBulkInUsbRead\n");
 494
 495     if (MP_TEST_FLAG(pDevice, fMP_DISCONNECTED))
 496         return STATUS_FAILURE;
 497
 498     pDevice->ulBulkInPosted++;
 499
 500
 501         pUrb = pRCB->pUrb;
 502     //
 503     // Now that we have created the urb, we will send a
 504     // request to the USB device object.
 505     //
 506     if (pRCB->skb == NULL) {
 507         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"pRCB->skb is null \n");
 508         return ntStatus;
 509     }
 510
 511         usb_fill_bulk_urb(pUrb,
 512                 pDevice->usb,
 513                 usb_rcvbulkpipe(pDevice->usb, 2),
 514                 (void *) (pRCB->skb->data),
 515                 MAX_TOTAL_SIZE_WITH_ALL_HEADERS,
 516                 s_nsBulkInUsbIoCompleteRead,
 517                 pRCB);
 518
 519         ntStatus = usb_submit_urb(pUrb, GFP_ATOMIC);
 520         if (ntStatus != 0) {
 521                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Submit Rx URB failed %d\n", ntStatus);
 522                 return STATUS_FAILURE ;
 523         }
 524     pRCB->Ref = 1;
 525     pRCB->bBoolInUse= TRUE;
 526
 527     return ntStatus;
 528 }
 529
 530
 531
 532
 533 /*
 534  * Description:
 535  *      Complete function of usb BulkIn irp.
 536  *
 537  * Parameters:
 538  *  In:
 539  *      pDevice     - Pointer to the adapter
 540  *
 541  *  Out:
 542  *      none
 543  *
 544  * Return Value: STATUS_INSUFFICIENT_RESOURCES or result of IoCallDriver
 545  *
 546  */
 547 static
 548 void
 549 s_nsBulkInUsbIoCompleteRead(
 550      struct urb *urb
 551     )
 552
 553 {
 554     PRCB    pRCB = (PRCB)urb->context;
 555     PSDevice pDevice = (PSDevice)pRCB->pDevice;
 556     unsigned long   bytesRead;
 557     BOOL    bIndicateReceive = FALSE;
 558     BOOL    bReAllocSkb = FALSE;
 559     int status;
 560
 561     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->s_nsBulkInUsbIoCompleteRead\n");
 562     status = urb->status;
 563     bytesRead = urb->actual_length;
 564
 565     if (status) {
 566         pDevice->ulBulkInError++;
 567         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"BULK In failed %d\n", status);
 568
 569            pDevice->scStatistic.RxFcsErrCnt ++;
 570 //todo...xxxxxx
 571 //        if (status == USBD_STATUS_CRC) {
 572 //            pDevice->ulBulkInContCRCError++;
 573 //        }
 574 //        if (status == STATUS_DEVICE_NOT_CONNECTED )
 575 //        {
 576 //            MP_SET_FLAG(pDevice, fMP_DISCONNECTED);
 577 //        }
 578     } else {
 579         bIndicateReceive = TRUE;
 580         pDevice->ulBulkInContCRCError = 0;
 581         pDevice->ulBulkInBytesRead += bytesRead;
 582
 583            pDevice->scStatistic.RxOkCnt ++;
 584     }
 585
 586
 587     STAvUpdateUSBCounter(&pDevice->scStatistic.USB_BulkInStat, status);
 588
 589     if (bIndicateReceive) {
 590         spin_lock(&pDevice->lock);
 591         if (RXbBulkInProcessData(pDevice, pRCB, bytesRead) == TRUE)
 592             bReAllocSkb = TRUE;
 593         spin_unlock(&pDevice->lock);
 594     }
 595     pRCB->Ref--;
 596     if (pRCB->Ref == 0)
 597     {
 598         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"RxvFreeNormal %d \n",pDevice->NumRecvFreeList);
 599         spin_lock(&pDevice->lock);
 600         RXvFreeRCB(pRCB, bReAllocSkb);
 601         spin_unlock(&pDevice->lock);
 602     }
 603
 604
 605     return;
 606 }
 607
 608 /*
 609  * Description:
 610  *      Allocates an usb BulkOut  irp and calls USBD.
 611  *
 612  * Parameters:
 613  *  In:
 614  *      pDevice     - Pointer to the adapter
 615  *  Out:
 616  *      none
 617  *
 618  * Return Value: STATUS_INSUFFICIENT_RESOURCES or result of IoCallDriver
 619  *
 620  */
 621 NDIS_STATUS
 622 PIPEnsSendBulkOut(
 623       PSDevice pDevice,
 624       PUSB_SEND_CONTEXT pContext
 625     )
 626 {
 627     int status;
 628     struct urb          *pUrb;
 629
 630
 631
 632     pDevice->bPWBitOn = FALSE;
 633
 634 /*
 635     if (pDevice->pPendingBulkOutContext != NULL) {
 636         pDevice->NumContextsQueued++;
 637         EnqueueContext(pDevice->FirstTxContextQueue, pDevice->LastTxContextQueue, pContext);
 638         status = STATUS_PENDING;
 639         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Send pending!\n");
 640         return status;
 641     }
 642 */
 643
 644     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"s_nsSendBulkOut\n");
 645
 646     if(MP_IS_READY(pDevice) && MP_TEST_FLAG(pDevice, fMP_POST_WRITES)) {
 647
 648         pUrb = pContext->pUrb;
 649         pDevice->ulBulkOutPosted++;
 650 //        pDevice->pPendingBulkOutContext = pContext;
 651         usb_fill_bulk_urb(
 652                     pUrb,
 653                         pDevice->usb,
 654                     usb_sndbulkpipe(pDevice->usb, 3),
 655                     (void *) &(pContext->Data[0]),
 656                         pContext->uBufLen,
 657                         s_nsBulkOutIoCompleteWrite,
 658                         pContext);
 659
 660         status = usb_submit_urb(pUrb, GFP_ATOMIC);
 661         if (status != 0)
 662         {
 663                 DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Submit Tx URB failed %d\n", status);
 664                 return STATUS_FAILURE;
 665         }
 666         return STATUS_PENDING;
 667     }
 668     else {
 669         pContext->bBoolInUse = FALSE;
 670         return STATUS_RESOURCES;
 671     }
 672 }
 673
 674 /*
 675  * Description: s_nsBulkOutIoCompleteWrite
 676  *     1a) Indicate to the protocol the status of the write.
 677  *     1b) Return ownership of the packet to the protocol.
 678  *
 679  *     2)  If any more packets are queue for sending, send another packet
 680  *         to USBD.
 681  *         If the attempt to send the packet to the driver fails,
 682  *         return ownership of the packet to the protocol and
 683  *         try another packet (until one succeeds).
 684  *
 685  * Parameters:
 686  *  In:
 687  *      pdoUsbDevObj  - pointer to the USB device object which
 688  *                      completed the irp
 689  *      pIrp          - the irp which was completed by the
 690  *                      device object
 691  *      pContext      - the context given to IoSetCompletionRoutine
 692  *                      before calling IoCallDriver on the irp
 693  *                      The pContext is a pointer to the USB device object.
 694  *  Out:
 695  *      none
 696  *
 697  * Return Value: STATUS_MORE_PROCESSING_REQUIRED - allows the completion routine
 698  *               (IofCompleteRequest) to stop working on the irp.
 699  *
 700  */
 701 static
 702 void
 703 s_nsBulkOutIoCompleteWrite(
 704      struct urb *urb
 705     )
 706 {
 707     PSDevice            pDevice;
 708     int status;
 709     CONTEXT_TYPE        ContextType;
 710     unsigned long               ulBufLen;
 711     PUSB_SEND_CONTEXT   pContext;
 712
 713
 714     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->s_nsBulkOutIoCompleteWrite\n");
 715     //
 716     // The context given to IoSetCompletionRoutine is an USB_CONTEXT struct
 717     //
 718     pContext = (PUSB_SEND_CONTEXT) urb->context;
 719     ASSERT( NULL != pContext );
 720
 721     pDevice = pContext->pDevice;
 722     ContextType = pContext->Type;
 723     ulBufLen = pContext->uBufLen;
 724
 725     if (!netif_device_present(pDevice->dev))
 726             return;
 727
 728    //
 729     // Perform various IRP, URB, and buffer 'sanity checks'
 730     //
 731
 732     status = urb->status;
 733     //we should have failed, succeeded, or cancelled, but NOT be pending
 734     STAvUpdateUSBCounter(&pDevice->scStatistic.USB_BulkOutStat, status);
 735
 736     if(status == STATUS_SUCCESS) {
 737         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Write %d bytes\n",(int)ulBufLen);
 738         pDevice->ulBulkOutBytesWrite += ulBufLen;
 739         pDevice->ulBulkOutContCRCError = 0;
 740         pDevice->nTxDataTimeCout = 0;
 741
 742     } else {
 743         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"BULK Out failed %d\n", status);
 744         pDevice->ulBulkOutError++;
 745     }
 746
 747 //    pDevice->ulCheckForHangCount = 0;
 748 //    pDevice->pPendingBulkOutContext = NULL;
 749
 750     if ( CONTEXT_DATA_PACKET == ContextType ) {
 751         // Indicate to the protocol the status of the sent packet and return
 752         // ownership of the packet.
 753             if (pContext->pPacket != NULL) {
 754                 dev_kfree_skb_irq(pContext->pPacket);
 755                 pContext->pPacket = NULL;
 756             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"tx  %d bytes\n",(int)ulBufLen);
 757             }
 758
 759         pDevice->dev->trans_start = jiffies;
 760
 761
 762         if (status == STATUS_SUCCESS) {
 763             pDevice->packetsSent++;
 764         }
 765         else {
 766             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Send USB error! [%08xh]\n", status);
 767             pDevice->packetsSentDropped++;
 768         }
 769
 770     }
 771     if (pDevice->bLinkPass == TRUE) {
 772         if (netif_queue_stopped(pDevice->dev))
 773             netif_wake_queue(pDevice->dev);
 774     }
 775     pContext->bBoolInUse = FALSE;
 776
 777     return;
 778 }