uvcuser.c

来自「NXP LPC2378 USBUVC Demo」· C语言 代码 · 共 717 行 · 第 1/3 页

          } // end SetupPacket.wValue.WB.H
          break;
        default:
          UVC_ErrorCode = INVALID_UNIT_ERR;
          break;
      } // end SetupPacket.wIndex.WB.H
      break;

    case USB_UVC_VSIF_NUM:                                 // Video Streaming Interface
          switch (SetupPacket.wValue.WB.H) {               // select the  selector control
            default:
              UVC_ErrorCode = INVALID_CONTROL_ERR;
              break;
          } // end SetupPacket.wValue.WB.H
      break;

    default:
      UVC_ErrorCode = UNKNOWN_ERR;
      break;
  }  // end SetupPacket.wIndex.WB.L

  if (UVC_ErrorCode == NO_ERROR_ERR)
    return (TRUE);                                         // we handled the request
  else
    return (FALSE);                                        // if not handled we stall it

} // end UVC_GetRes

/*----------------------------------------------------------------------------
  UVC GetLen Request Callback
  Called automatically on UVC GET_LEN Request
  Parameters:   None                          (global SetupPacket and EP0Buf)
  Return Value: TRUE - Success, FALSE - Error
 *---------------------------------------------------------------------------*/
BOOL UVC_GetLen (void) {

  switch (SetupPacket.wIndex.WB.L) {                       // select the Interface
    case USB_UVC_VCIF_NUM:                                 // Video Control Interface
      switch (SetupPacket.wIndex.WB.H) {                   // select the Entity
        case 5:                                            // ProcessingUnit            see usbdesc.c
          switch (SetupPacket.wValue.WB.H) {               // select the  selector control
            case PU_BRIGHTNESS_CONTROL:
              UVC_ErrorCode = INVALID_REQUEST_ERR;
              break;
            default:
              UVC_ErrorCode = INVALID_CONTROL_ERR;
              break;
          } // end SetupPacket.wValue.WB.H
          break;
        default:
          UVC_ErrorCode = INVALID_UNIT_ERR;
          break;
      } // end SetupPacket.wIndex.WB.H
      break;

    case USB_UVC_VSIF_NUM:                                 // Video Streaming Interface
          switch (SetupPacket.wValue.WB.H) {               // select the  selector control
            default:
              UVC_ErrorCode = INVALID_CONTROL_ERR;
              break;
          } // end SetupPacket.wValue.WB.H
      break;

    default:
      UVC_ErrorCode = UNKNOWN_ERR;
      break;
  }  // end SetupPacket.wIndex.WB.L

  if (UVC_ErrorCode == NO_ERROR_ERR)
    return (TRUE);                                         // we handled the request
  else
    return (FALSE);                                        // if not handled we stall it

} // end UVC_GetLen

/*----------------------------------------------------------------------------
  UVC GetInfo Request Callback
  Called automatically on UVC GET_INFO Request
  Parameters:   None                          (global SetupPacket and EP0Buf)
  Return Value: TRUE - Success, FALSE - Error
 *---------------------------------------------------------------------------*/
BOOL UVC_GetInfo (void) {

  switch (SetupPacket.wIndex.WB.L) {                       // select the Interface
    case USB_UVC_VCIF_NUM:                                 // Video Control Interface
      switch (SetupPacket.wIndex.WB.H) {                   // select the Entity
        case 0:                                            // interface control requests
          switch (SetupPacket.wValue.WB.H) {               // select the  selector control
            case VC_VIDEO_POWER_MODE_CONTROL:
              EP0Buf[0] = (SUPPORTS_GET | SUPPORTS_SET);
              UVC_ErrorCode = NO_ERROR_ERR;
              break;
            case VC_REQUEST_ERROR_CODE_CONTROL:
              EP0Buf[0] = (SUPPORTS_GET);
              UVC_ErrorCode = NO_ERROR_ERR;
              break;
            default:
              UVC_ErrorCode = INVALID_CONTROL_ERR;
              break;
          } // end SetupPacket.wValue.WB.H
          break;
        case 1:                                            // InputTerminal (camera)    see usbdesc.c
          switch (SetupPacket.wValue.WB.H) {               // select the  selector control
            default:
              UVC_ErrorCode = INVALID_CONTROL_ERR;
              break;
          } // end SetupPacket.wValue.WB.H
          break;
        case 2:                                            // InputTerminal (composite) see usbdesc.c
          switch (SetupPacket.wValue.WB.H) {               // select the  selector control
            default:
              UVC_ErrorCode = INVALID_CONTROL_ERR;
              break;
          } // end SetupPacket.wValue.WB.H
          break;
        case 3:                                            // OutputTerminal            see usbdesc.c
          switch (SetupPacket.wValue.WB.H) {               // select the  selector control
            default:
              UVC_ErrorCode = INVALID_CONTROL_ERR;
              break;
          } // end SetupPacket.wValue.WB.H
          break;
        case 4:                                            // SelectorUnit              see usbdesc.c
          switch (SetupPacket.wValue.WB.H) {               // select the  selector control
            case SU_INPUT_SELECT_CONTROL:
              EP0Buf[0] = (SUPPORTS_GET | SUPPORTS_SET);
              UVC_ErrorCode = NO_ERROR_ERR;
              break;
          } // end SetupPacket.wValue.WB.H
          break;
        case 5:                                            // ProcessingUnit            see usbdesc.c
          switch (SetupPacket.wValue.WB.H) {               // select the  selector control
            case PU_BRIGHTNESS_CONTROL:
              EP0Buf[0] = (SUPPORTS_GET | SUPPORTS_SET);
              UVC_ErrorCode = NO_ERROR_ERR;
              break;
          } // end SetupPacket.wValue.WB.H
          break;
        default:
          UVC_ErrorCode = INVALID_UNIT_ERR;
          break;
      } // end SetupPacket.wIndex.WB.H
      break;

    case USB_UVC_VSIF_NUM:                                 // Video Streaming Interface
          switch (SetupPacket.wValue.WB.H) {               // select the  selector control
            default:
              UVC_ErrorCode = INVALID_CONTROL_ERR;
              break;
          } // end SetupPacket.wValue.WB.H
      break;

    default:
      UVC_ErrorCode = UNKNOWN_ERR;
      break;
  }  // end SetupPacket.wIndex.WB.L

  if (UVC_ErrorCode == NO_ERROR_ERR)
    return (TRUE);                                         // we handled the request
  else
    return (FALSE);                                        // if not handled we stall it

} // end UVC_GetInfo

/*----------------------------------------------------------------------------
  UVC GetDef Request Callback
  Called automatically on UVC GET_DEF Request
  Parameters:   None                          (global SetupPacket and EP0Buf)
  Return Value: TRUE - Success, FALSE - Error
 *---------------------------------------------------------------------------*/
BOOL UVC_GetDef (void) {

  switch (SetupPacket.wIndex.WB.L) {                       // select the Interface
    case USB_UVC_VCIF_NUM:                                 // Video Control Interface
      switch (SetupPacket.wIndex.WB.H) {                   // select the Entity
        case 1:                                            // InputTerminal (camera)    see usbdesc.c
          switch (SetupPacket.wValue.WB.H) {               // select the  selector control
            default:
              UVC_ErrorCode = INVALID_CONTROL_ERR;
              break;
          } // end SetupPacket.wValue.WB.H
          break;
        case 2:                                            // InputTerminal (composite) see usbdesc.c
          switch (SetupPacket.wValue.WB.H) {               // select the  selector control
            default:
              UVC_ErrorCode = INVALID_CONTROL_ERR;
              break;
          } // end SetupPacket.wValue.WB.H
          break;
        case 3:                                            // OutputTerminal            see usbdesc.c
          switch (SetupPacket.wValue.WB.H) {               // select the  selector control
            default:
              UVC_ErrorCode = INVALID_CONTROL_ERR;
              break;
          } // end SetupPacket.wValue.WB.H
          break;
        case 4:                                            // SelectorUnit              see usbdesc.c
          switch (SetupPacket.wValue.WB.H) {               // select the  selector control
            case SU_INPUT_SELECT_CONTROL:
              EP0Buf[0] = UVC_suSelectedInputPin;
              UVC_ErrorCode = NO_ERROR_ERR;
              break;
          } // end SetupPacket.wValue.WB.H
          break;
        case 5:                                            // ProcessingUnit            see usbdesc.c
          switch (SetupPacket.wValue.WB.H) {               // select the  selector control
            case PU_BRIGHTNESS_CONTROL:
              *((__packed WORD *)EP0Buf) = UVC_puBrightnessDef;
              UVC_ErrorCode = NO_ERROR_ERR;
              break;
          } // end SetupPacket.wValue.WB.H
          break;
        default:
          UVC_ErrorCode = INVALID_UNIT_ERR;
          break;
      } // end SetupPacket.wIndex.WB.H
      break;

    case USB_UVC_VSIF_NUM:                                 // Video Streaming Interface
          switch (SetupPacket.wValue.WB.H) {               // select the  selector control
            default:
              UVC_ErrorCode = INVALID_CONTROL_ERR;
              break;
          } // end SetupPacket.wValue.WB.H
      break;

    default:
      UVC_ErrorCode = UNKNOWN_ERR;
      break;
  }  // end SetupPacket.wIndex.WB.L

  if (UVC_ErrorCode == NO_ERROR_ERR)
    return (TRUE);                                         // we handled the request
  else
    return (FALSE);                                        // if not handled we stall it

} // end UVC_GetDef