Replace internal Pipe_BytesToEPSizeMask() routine with a new version which results...
[pub/USBasp.git] / Demos / Device / ClassDriver / MassStorage / Lib / SCSI.c
index f0796ea..0bc92c1 100644 (file)
@@ -86,7 +86,7 @@ SCSI_Request_Sense_Response_t SenseData =
  *
  *  \param[in] MSInterfaceInfo  Pointer to the Mass Storage class interface structure that the command is associated with
  */
-bool SCSI_DecodeSCSICommand(USB_ClassInfo_MS_Device_t* MSInterfaceInfo)
+bool SCSI_DecodeSCSICommand(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
 {
        /* Set initial sense data, before the requested command is processed */
        SCSI_SET_SENSE(SCSI_SENSE_KEY_GOOD,
@@ -136,7 +136,7 @@ bool SCSI_DecodeSCSICommand(USB_ClassInfo_MS_Device_t* MSInterfaceInfo)
  *
  *  \param[in] MSInterfaceInfo  Pointer to the Mass Storage class interface structure that the command is associated with
  */
-static void SCSI_Command_Inquiry(USB_ClassInfo_MS_Device_t* MSInterfaceInfo)
+static void SCSI_Command_Inquiry(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
 {
        uint16_t AllocationLength  = SwapEndian_16(*(uint16_t*)&MSInterfaceInfo->State.CommandBlock.SCSICommandData[3]);
        uint16_t BytesTransferred  = (AllocationLength < sizeof(InquiryData))? AllocationLength :
@@ -173,7 +173,7 @@ static void SCSI_Command_Inquiry(USB_ClassInfo_MS_Device_t* MSInterfaceInfo)
  *
  *  \param[in] MSInterfaceInfo  Pointer to the Mass Storage class interface structure that the command is associated with
  */
-static void SCSI_Command_Request_Sense(USB_ClassInfo_MS_Device_t* MSInterfaceInfo)
+static void SCSI_Command_Request_Sense(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
 {
        uint8_t  AllocationLength = MSInterfaceInfo->State.CommandBlock.SCSICommandData[4];
        uint8_t  BytesTransferred = (AllocationLength < sizeof(SenseData))? AllocationLength : sizeof(SenseData);
@@ -193,7 +193,7 @@ static void SCSI_Command_Request_Sense(USB_ClassInfo_MS_Device_t* MSInterfaceInf
  *
  *  \param[in] MSInterfaceInfo  Pointer to the Mass Storage class interface structure that the command is associated with
  */
-static void SCSI_Command_Read_Capacity_10(USB_ClassInfo_MS_Device_t* MSInterfaceInfo)
+static void SCSI_Command_Read_Capacity_10(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
 {
        uint32_t LastBlockAddressInLUN = (LUN_MEDIA_BLOCKS - 1);
        uint32_t MediaBlockSize        = VIRTUAL_MEMORY_BLOCK_SIZE;
@@ -212,7 +212,7 @@ static void SCSI_Command_Read_Capacity_10(USB_ClassInfo_MS_Device_t* MSInterface
  *
  *  \param[in] MSInterfaceInfo  Pointer to the Mass Storage class interface structure that the command is associated with
  */
-static void SCSI_Command_Send_Diagnostic(USB_ClassInfo_MS_Device_t* MSInterfaceInfo)
+static void SCSI_Command_Send_Diagnostic(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
 {
        /* Check to see if the SELF TEST bit is not set */
        if (!(MSInterfaceInfo->State.CommandBlock.SCSICommandData[1] & (1 << 2)))
@@ -247,16 +247,10 @@ static void SCSI_Command_Send_Diagnostic(USB_ClassInfo_MS_Device_t* MSInterfaceI
  *  \param[in] MSInterfaceInfo  Pointer to the Mass Storage class interface structure that the command is associated with
  *  \param[in] IsDataRead  Indicates if the command is a READ (10) command or WRITE (10) command (DATA_READ or DATA_WRITE)
  */
-static void SCSI_Command_ReadWrite_10(USB_ClassInfo_MS_Device_t* MSInterfaceInfo, const bool IsDataRead)
+static void SCSI_Command_ReadWrite_10(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo, const bool IsDataRead)
 {
-       uint32_t BlockAddress;
-       uint16_t TotalBlocks;
-       
-       /* Load in the 32-bit block address (SCSI uses big-endian, so have to reverse the byte order) */
-       BlockAddress = SwapEndian_32(*(uint32_t*)&MSInterfaceInfo->State.CommandBlock.SCSICommandData[2]);
-
-       /* Load in the 16-bit total blocks (SCSI uses big-endian, so have to reverse the byte order) */
-       TotalBlocks  = SwapEndian_16(*(uint16_t*)&MSInterfaceInfo->State.CommandBlock.SCSICommandData[7]);
+       uint32_t BlockAddress = SwapEndian_32(*(uint32_t*)&MSInterfaceInfo->State.CommandBlock.SCSICommandData[2]);
+       uint16_t TotalBlocks  = SwapEndian_16(*(uint16_t*)&MSInterfaceInfo->State.CommandBlock.SCSICommandData[7]);
        
        /* Check if the block address is outside the maximum allowable value for the LUN */
        if (BlockAddress >= LUN_MEDIA_BLOCKS)