C++ (Cpp) USBH_MSC_Writeの例

コード例 #1

ファイル: usb_host_msc_interface.c プロジェクト: MorgothCreator/mSdk

/**
  * @brief  Writes Sector(s)
  * @param  lun : lun id
  * @param  *buff: Data to be written
  * @param  sector: Sector address (LBA)
  * @param  count: Number of sectors to write (1..128)
  * @retval DRESULT: Operation result
  */
DRESULT USBH_write(BYTE lun, const BYTE *buff, DWORD sector, UINT count)
{
  DRESULT res = RES_ERROR;
  MSC_LUNTypeDef info;
  USBH_StatusTypeDef  status = USBH_OK;

  if ((DWORD)buff & 3) /* DMA Alignment issue, do single up to aligned buffer */
  {
#if _USE_BUFF_WO_ALIGNMENT == 0
    while (count--)
    {
      memcpy (scratch, &buff[count * _MAX_SS], _MAX_SS);

      status = USBH_MSC_Write(&usb_msc_host_param[lun], lun, sector + count, (BYTE *)scratch, 1) ;
      if(status == USBH_FAIL)
      {
        break;
      }
    }
#else
    return res;
#endif
  }
  else
  {
    status = USBH_MSC_Write(&usb_msc_host_param[lun], lun, sector, (BYTE *)buff, count);
  }

  if(status == USBH_OK)
  {
    res = RES_OK;
  }
  else
  {
    USBH_MSC_GetLUNInfo(&usb_msc_host_param[lun], lun, &info);

    switch (info.sense.asc)
    {
    case SCSI_ASC_WRITE_PROTECTED:
      USBH_ErrLog("USB Disk is Write protected!");
      res = RES_WRPRT;
      break;

    case SCSI_ASC_LOGICAL_UNIT_NOT_READY:
    case SCSI_ASC_MEDIUM_NOT_PRESENT:
    case SCSI_ASC_NOT_READY_TO_READY_CHANGE:
      USBH_ErrLog("USB Disk is not ready!");
      res = RES_NOTRDY;
      break;

    default:
      res = RES_ERROR;
      break;
    }
  }

  return res;
}

コード例 #2

ファイル: usbh_diskio.c プロジェクト: chsigi/blindschleiche

DRESULT disk_write (BYTE pdrv, const BYTE* buff, DWORD sector, BYTE count)
{
  DRESULT res = RES_ERROR; 
  MSC_LUNTypeDef info;
  USBH_StatusTypeDef  status = USBH_OK;  
  DWORD scratch [_MAX_SS / 4];  
  
  if ((DWORD)buff & 3) /* DMA Alignment issue, do single up to aligned buffer */
  {
    while (count--)
    {
      memcpy (scratch, &buff[count * _MAX_SS], _MAX_SS);
      
      status = USBH_MSC_Write(&hUSBHost_HS, pdrv, sector + count, (BYTE *)scratch, 1) ;
      if(status == USBH_FAIL)
      {
        break;
      }
    }
  }
  else
  {
    status = USBH_MSC_Write(&hUSBHost_HS, pdrv, sector, (BYTE *)buff, count);
  }
  
  if(status == USBH_OK)
  {
    res = RES_OK;
  }
  else
  {
    USBH_MSC_GetLUNInfo(&hUSBHost_HS, pdrv, &info); 
    
    switch (info.sense.asc)
    {
    case SCSI_ASC_WRITE_PROTECTED:
      USBH_ErrLog("USB Disk is Write protected!");
      res = RES_WRPRT;
      break;
      
    case SCSI_ASC_LOGICAL_UNIT_NOT_READY:
    case SCSI_ASC_MEDIUM_NOT_PRESENT:
    case SCSI_ASC_NOT_READY_TO_READY_CHANGE:
      USBH_ErrLog("USB Disk is not ready!");      
      res = RES_NOTRDY;
      break; 
      
    default:
      res = RES_ERROR;
      break;
    }
  }
  
  return res;   
}