Lower bulk endpoint polling rate in the descriptors to the lowest possible value...
[pub/USBasp.git] / Projects / Incomplete / StandaloneProgrammer / Lib / SCSI.c
index 1ca22a5..7b2a8fa 100644 (file)
@@ -1,21 +1,21 @@
 /*
              LUFA Library
      Copyright (C) Dean Camera, 2010.
 /*
              LUFA Library
      Copyright (C) Dean Camera, 2010.
-              
+
   dean [at] fourwalledcubicle [dot] com
   dean [at] fourwalledcubicle [dot] com
-      www.fourwalledcubicle.com
+           www.lufa-lib.org
 */
 
 /*
   Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
 
 */
 
 /*
   Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
 
-  Permission to use, copy, modify, distribute, and sell this 
+  Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted
   software and its documentation for any purpose is hereby granted
-  without fee, provided that the above copyright notice appear in 
+  without fee, provided that the above copyright notice appear in
   all copies and that both that the copyright notice and this
   all copies and that both that the copyright notice and this
-  permission notice and warranty disclaimer appear in supporting 
-  documentation, and that the name of the author not be used in 
-  advertising or publicity pertaining to distribution of the 
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
   software without specific, written prior permission.
 
   The author disclaim all warranties with regard to this
   software without specific, written prior permission.
 
   The author disclaim all warranties with regard to this
@@ -34,7 +34,7 @@
  *  devices use a thin "Bulk-Only Transport" protocol for issuing commands and status information,
  *  which wrap around standard SCSI device commands for controlling the actual storage medium.
  */
  *  devices use a thin "Bulk-Only Transport" protocol for issuing commands and status information,
  *  which wrap around standard SCSI device commands for controlling the actual storage medium.
  */
+
 #define  INCLUDE_FROM_SCSI_C
 #include "SCSI.h"
 
 #define  INCLUDE_FROM_SCSI_C
 #include "SCSI.h"
 
 /** Structure to hold the SCSI response data to a SCSI INQUIRY command. This gives information about the device's
  *  features and capabilities.
  */
 /** Structure to hold the SCSI response data to a SCSI INQUIRY command. This gives information about the device's
  *  features and capabilities.
  */
-SCSI_Inquiry_Response_t InquiryData = 
+SCSI_Inquiry_Response_t InquiryData =
        {
                .DeviceType          = DEVICE_TYPE_BLOCK,
                .PeripheralQualifier = 0,
        {
                .DeviceType          = DEVICE_TYPE_BLOCK,
                .PeripheralQualifier = 0,
-                       
+
                .Removable           = true,
                .Removable           = true,
-                       
+
                .Version             = 0,
                .Version             = 0,
-                       
+
                .ResponseDataFormat  = 2,
                .NormACA             = false,
                .TrmTsk              = false,
                .AERC                = false,
 
                .AdditionalLength    = 0x1F,
                .ResponseDataFormat  = 2,
                .NormACA             = false,
                .TrmTsk              = false,
                .AERC                = false,
 
                .AdditionalLength    = 0x1F,
-                       
+
                .SoftReset           = false,
                .CmdQue              = false,
                .Linked              = false,
                .SoftReset           = false,
                .CmdQue              = false,
                .Linked              = false,
@@ -65,7 +65,7 @@ SCSI_Inquiry_Response_t InquiryData =
                .WideBus16Bit        = false,
                .WideBus32Bit        = false,
                .RelAddr             = false,
                .WideBus16Bit        = false,
                .WideBus32Bit        = false,
                .RelAddr             = false,
-               
+
                .VendorID            = "LUFA",
                .ProductID           = "Dataflash Disk",
                .RevisionID          = {'0','.','0','0'},
                .VendorID            = "LUFA",
                .ProductID           = "Dataflash Disk",
                .RevisionID          = {'0','.','0','0'},
@@ -97,13 +97,13 @@ bool SCSI_DecodeSCSICommand(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
        switch (MSInterfaceInfo->State.CommandBlock.SCSICommandData[0])
        {
                case SCSI_CMD_INQUIRY:
        switch (MSInterfaceInfo->State.CommandBlock.SCSICommandData[0])
        {
                case SCSI_CMD_INQUIRY:
-                       CommandSuccess = SCSI_Command_Inquiry(MSInterfaceInfo);                 
+                       CommandSuccess = SCSI_Command_Inquiry(MSInterfaceInfo);
                        break;
                case SCSI_CMD_REQUEST_SENSE:
                        CommandSuccess = SCSI_Command_Request_Sense(MSInterfaceInfo);
                        break;
                case SCSI_CMD_READ_CAPACITY_10:
                        break;
                case SCSI_CMD_REQUEST_SENSE:
                        CommandSuccess = SCSI_Command_Request_Sense(MSInterfaceInfo);
                        break;
                case SCSI_CMD_READ_CAPACITY_10:
-                       CommandSuccess = SCSI_Command_Read_Capacity_10(MSInterfaceInfo);                        
+                       CommandSuccess = SCSI_Command_Read_Capacity_10(MSInterfaceInfo);
                        break;
                case SCSI_CMD_SEND_DIAGNOSTIC:
                        CommandSuccess = SCSI_Command_Send_Diagnostic(MSInterfaceInfo);
                        break;
                case SCSI_CMD_SEND_DIAGNOSTIC:
                        CommandSuccess = SCSI_Command_Send_Diagnostic(MSInterfaceInfo);
@@ -135,7 +135,7 @@ bool SCSI_DecodeSCSICommand(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
                SCSI_SET_SENSE(SCSI_SENSE_KEY_GOOD,
                               SCSI_ASENSE_NO_ADDITIONAL_INFORMATION,
                               SCSI_ASENSEQ_NO_QUALIFIER);
                SCSI_SET_SENSE(SCSI_SENSE_KEY_GOOD,
                               SCSI_ASENSE_NO_ADDITIONAL_INFORMATION,
                               SCSI_ASENSEQ_NO_QUALIFIER);
-               
+
                return true;
        }
 
                return true;
        }
 
@@ -166,11 +166,11 @@ static bool SCSI_Command_Inquiry(USB_ClassInfo_MS_Device_t* const MSInterfaceInf
 
                return false;
        }
 
                return false;
        }
-       
+
        Endpoint_Write_Stream_LE(&InquiryData, BytesTransferred, NO_STREAM_CALLBACK);
 
        uint8_t PadBytes[AllocationLength - BytesTransferred];
        Endpoint_Write_Stream_LE(&InquiryData, BytesTransferred, NO_STREAM_CALLBACK);
 
        uint8_t PadBytes[AllocationLength - BytesTransferred];
-       
+
        /* Pad out remaining bytes with 0x00 */
        Endpoint_Write_Stream_LE(&PadBytes, sizeof(PadBytes), NO_STREAM_CALLBACK);
 
        /* Pad out remaining bytes with 0x00 */
        Endpoint_Write_Stream_LE(&PadBytes, sizeof(PadBytes), NO_STREAM_CALLBACK);
 
@@ -179,7 +179,7 @@ static bool SCSI_Command_Inquiry(USB_ClassInfo_MS_Device_t* const MSInterfaceInf
 
        /* Succeed the command and update the bytes transferred counter */
        MSInterfaceInfo->State.CommandBlock.DataTransferLength -= BytesTransferred;
 
        /* Succeed the command and update the bytes transferred counter */
        MSInterfaceInfo->State.CommandBlock.DataTransferLength -= BytesTransferred;
-       
+
        return true;
 }
 
        return true;
 }
 
@@ -194,7 +194,7 @@ static bool SCSI_Command_Request_Sense(USB_ClassInfo_MS_Device_t* const MSInterf
 {
        uint8_t  AllocationLength = MSInterfaceInfo->State.CommandBlock.SCSICommandData[4];
        uint8_t  BytesTransferred = (AllocationLength < sizeof(SenseData))? AllocationLength : sizeof(SenseData);
 {
        uint8_t  AllocationLength = MSInterfaceInfo->State.CommandBlock.SCSICommandData[4];
        uint8_t  BytesTransferred = (AllocationLength < sizeof(SenseData))? AllocationLength : sizeof(SenseData);
-       
+
        uint8_t PadBytes[AllocationLength - BytesTransferred];
 
        Endpoint_Write_Stream_LE(&SenseData, BytesTransferred, NO_STREAM_CALLBACK);
        uint8_t PadBytes[AllocationLength - BytesTransferred];
 
        Endpoint_Write_Stream_LE(&SenseData, BytesTransferred, NO_STREAM_CALLBACK);
@@ -222,10 +222,10 @@ static bool SCSI_Command_Read_Capacity_10(USB_ClassInfo_MS_Device_t* const MSInt
        Endpoint_Write_Stream_BE(&LastBlockAddressInLUN, sizeof(LastBlockAddressInLUN), NO_STREAM_CALLBACK);
        Endpoint_Write_Stream_BE(&MediaBlockSize, sizeof(MediaBlockSize), NO_STREAM_CALLBACK);
        Endpoint_ClearIN();
        Endpoint_Write_Stream_BE(&LastBlockAddressInLUN, sizeof(LastBlockAddressInLUN), NO_STREAM_CALLBACK);
        Endpoint_Write_Stream_BE(&MediaBlockSize, sizeof(MediaBlockSize), NO_STREAM_CALLBACK);
        Endpoint_ClearIN();
-       
+
        /* Succeed the command and update the bytes transferred counter */
        MSInterfaceInfo->State.CommandBlock.DataTransferLength -= 8;
        /* Succeed the command and update the bytes transferred counter */
        MSInterfaceInfo->State.CommandBlock.DataTransferLength -= 8;
-       
+
        return true;
 }
 
        return true;
 }
 
@@ -249,21 +249,21 @@ static bool SCSI_Command_Send_Diagnostic(USB_ClassInfo_MS_Device_t* const MSInte
 
                return false;
        }
 
                return false;
        }
-       
+
        /* Check to see if all attached Dataflash ICs are functional */
        if (!(DataflashManager_CheckDataflashOperation()))
        {
                /* Update SENSE key with a hardware error condition and return command fail */
                SCSI_SET_SENSE(SCSI_SENSE_KEY_HARDWARE_ERROR,
                               SCSI_ASENSE_NO_ADDITIONAL_INFORMATION,
        /* Check to see if all attached Dataflash ICs are functional */
        if (!(DataflashManager_CheckDataflashOperation()))
        {
                /* Update SENSE key with a hardware error condition and return command fail */
                SCSI_SET_SENSE(SCSI_SENSE_KEY_HARDWARE_ERROR,
                               SCSI_ASENSE_NO_ADDITIONAL_INFORMATION,
-                              SCSI_ASENSEQ_NO_QUALIFIER);      
-       
+                              SCSI_ASENSEQ_NO_QUALIFIER);
+
                return false;
        }
                return false;
        }
-       
+
        /* Succeed the command and update the bytes transferred counter */
        MSInterfaceInfo->State.CommandBlock.DataTransferLength = 0;
        /* Succeed the command and update the bytes transferred counter */
        MSInterfaceInfo->State.CommandBlock.DataTransferLength = 0;
-       
+
        return true;
 }
 
        return true;
 }
 
@@ -281,13 +281,13 @@ static bool SCSI_Command_ReadWrite_10(USB_ClassInfo_MS_Device_t* const MSInterfa
 {
        uint32_t BlockAddress;
        uint16_t TotalBlocks;
 {
        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]);
        /* 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]);
-       
+
        /* Check if the block address is outside the maximum allowable value for the LUN */
        if (BlockAddress >= VIRTUAL_MEMORY_BLOCKS)
        {
        /* Check if the block address is outside the maximum allowable value for the LUN */
        if (BlockAddress >= VIRTUAL_MEMORY_BLOCKS)
        {
@@ -298,7 +298,7 @@ static bool SCSI_Command_ReadWrite_10(USB_ClassInfo_MS_Device_t* const MSInterfa
 
                return false;
        }
 
                return false;
        }
-       
+
        /* Determine if the packet is a READ (10) or WRITE (10) command, call appropriate function */
        if (IsDataRead == DATA_READ)
          DataflashManager_ReadBlocks(MSInterfaceInfo, BlockAddress, TotalBlocks);
        /* Determine if the packet is a READ (10) or WRITE (10) command, call appropriate function */
        if (IsDataRead == DATA_READ)
          DataflashManager_ReadBlocks(MSInterfaceInfo, BlockAddress, TotalBlocks);
@@ -307,7 +307,8 @@ static bool SCSI_Command_ReadWrite_10(USB_ClassInfo_MS_Device_t* const MSInterfa
 
        /* Update the bytes transferred counter and succeed the command */
        MSInterfaceInfo->State.CommandBlock.DataTransferLength -= ((uint32_t)TotalBlocks * VIRTUAL_MEMORY_BLOCK_SIZE);
 
        /* Update the bytes transferred counter and succeed the command */
        MSInterfaceInfo->State.CommandBlock.DataTransferLength -= ((uint32_t)TotalBlocks * VIRTUAL_MEMORY_BLOCK_SIZE);
-       
+
        return true;
 }
 #endif
        return true;
 }
 #endif
+