From 74298f8ca11dc8d3b0359d1d4e124d6494c3eeac Mon Sep 17 00:00:00 2001 From: Nicolas Schodet Date: Fri, 10 Apr 2009 01:15:42 +0200 Subject: * digital/avr/modules/usb: - imported LUFA. --- .../lufa/Demos/MassStorageHost/MassStoreCommands.h | 176 +++++++++++++++++++++ 1 file changed, 176 insertions(+) create mode 100644 digital/avr/modules/usb/lufa/Demos/MassStorageHost/MassStoreCommands.h (limited to 'digital/avr/modules/usb/lufa/Demos/MassStorageHost/MassStoreCommands.h') diff --git a/digital/avr/modules/usb/lufa/Demos/MassStorageHost/MassStoreCommands.h b/digital/avr/modules/usb/lufa/Demos/MassStorageHost/MassStoreCommands.h new file mode 100644 index 00000000..d3ddfeeb --- /dev/null +++ b/digital/avr/modules/usb/lufa/Demos/MassStorageHost/MassStoreCommands.h @@ -0,0 +1,176 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2009. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, and distribute this software + and its documentation for any purpose and without fee is hereby + granted, provided that the above copyright notice appear in 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 + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * Header file for MassStoreCommands.c. + */ + +#ifndef _MASS_STORE_COMMANDS_H_ +#define _MASS_STORE_COMMANDS_H_ + + /* Includes: */ + #include + + #include "MassStorageHost.h" + #include "SCSI_Codes.h" + + #include // USB Functionality + + /* Macros: */ + /** Class specific request to reset the Mass Storage interface of the attached device */ + #define REQ_MassStorageReset 0xFF + + /** Class specific request to retrieve the maximum Logical Unit Number (LUN) index of the attached device */ + #define REQ_GetMaxLUN 0xFE + + /** Command Block Wrapper signature byte, for verification of valid CBW blocks */ + #define CBW_SIGNATURE 0x43425355UL + + /** Command Statuc Wrapper signature byte, for verification of valid CSW blocks */ + #define CSW_SIGNATURE 0x53425355UL + + /** Data direction mask for the Flags field of a CBW, indicating Host-to-Device transfer direction */ + #define COMMAND_DIRECTION_DATA_OUT (0 << 7) + + /** Data direction mask for the Flags field of a CBW, indicating Device-to-Host transfer direction */ + #define COMMAND_DIRECTION_DATA_IN (1 << 7) + + /** Timeout period between the issuing of a CBW to a device, and the reception of the first packet */ + #define COMMAND_DATA_TIMEOUT_MS 500 + + /** Pipe number of the Mass Storage data IN pipe */ + #define MASS_STORE_DATA_IN_PIPE 1 + + /** Pipe number of the Mass Storage data OUT pipe */ + #define MASS_STORE_DATA_OUT_PIPE 2 + + /* Type defines: */ + /** Type define for a Mass Storage class Command Block Wrapper, used to wrap SCSI + * commands for transport over the USB bulk endpoints to the device. + */ + typedef struct + { + struct + { + uint32_t Signature; /**< Command block signature, always equal to CBW_SIGNATURE */ + uint32_t Tag; /**< Current CBW tag, to positively associate a CBW with a CSW */ + uint32_t DataTransferLength; /**< Length of data to transfer, following the CBW */ + uint8_t Flags; /**< Block flags, equal to one of the COMMAND_DIRECTION_DATA_* macros */ + uint8_t LUN; /**< Logical Unit Number the CBW is addressed to in the device */ + uint8_t SCSICommandLength; /**< Length of the SCSI command in the CBW */ + } Header; + + uint8_t SCSICommandData[16]; /**< SCSI command to issue to the device */ + } CommandBlockWrapper_t; + + /** Type define for a Mass Storage class Command Status Wrapper, used to wrap SCSI + * responses for transport over the USB bulk endpoints from the device. + */ + typedef struct + { + uint32_t Signature; /**< Command status signature, always equal to CSW_SIGNATURE */ + uint32_t Tag; /**< Current CBW tag, to positively associate a CBW with a CSW */ + uint32_t DataTransferResidue; /**< Length of data not transfered */ + uint8_t Status; /**< Command status, a value from the MassStorageHost_CommandStatusCodes_t enum */ + } CommandStatusWrapper_t; + + /** Type define for a SCSI Sense structure. Structures of this type are filled out by the + * device via the MassStore_RequestSense() function, indicating the current sense data of the + * device (giving explitic error codes for the last issued command). For details of the + * structure contents, refer to the SCSI specifications. + */ + typedef struct + { + unsigned int ReponseCode : 7; + unsigned int Valid : 1; + + uint8_t SegmentNumber; + + unsigned int SenseKey : 4; + unsigned int _RESERVED1 : 1; + unsigned int ILI : 1; + unsigned int EOM : 1; + unsigned int FileMark : 1; + + uint8_t Information[4]; + uint8_t AdditionalLength; + uint8_t CmdSpecificInformation[4]; + uint8_t AdditionalSenseCode; + uint8_t AdditionalSenseQualifier; + uint8_t FieldReplaceableUnitCode; + uint8_t SenseKeySpecific[3]; + } SCSI_Request_Sense_Response_t; + + /** SCSI capacity structure, to hold the total capacity of the device in both the number + * of blocks in the current LUN, and the size of each block. This structure is filled by + * the device when the MassStore_ReadCapacity() function is called. + */ + typedef struct + { + uint32_t Blocks; /**< Number of blocks in the addressed LUN of the device */ + uint32_t BlockSize; /**< Number of bytes in each block in the addressed LUN */ + } SCSI_Capacity_t; + + /* Enums: */ + /** CSW status return codes, indicating the overall status of the issued CBW */ + enum MassStorageHost_CommandStatusCodes_t + { + Command_Pass = 0, /**< Command completed successfully */ + Command_Fail = 1, /**< Command failed to complete successfully */ + Phase_Error = 2 /**< Phase error while processing the issued command */ + }; + + /* External Variables: */ + extern CommandStatusWrapper_t SCSICommandStatus; + + /* Function Prototypes: */ + #if defined(INCLUDE_FROM_MASSSTORE_COMMANDS_C) + static uint8_t MassStore_SendCommand(void); + static uint8_t MassStore_WaitForDataReceived(void); + static uint8_t MassStore_SendReceiveData(void* BufferPtr) ATTR_NON_NULL_PTR_ARG(1); + static uint8_t MassStore_GetReturnedStatus(void); + #endif + + uint8_t MassStore_ClearPipeStall(const uint8_t EndpointNum); + uint8_t MassStore_MassStorageReset(void); + uint8_t MassStore_GetMaxLUN(uint8_t* const MaxLUNIndex); + uint8_t MassStore_RequestSense(const uint8_t LUNIndex, const SCSI_Request_Sense_Response_t* const SensePtr) + ATTR_NON_NULL_PTR_ARG(2); + uint8_t MassStore_ReadDeviceBlock(const uint8_t LUNIndex, const uint32_t BlockAddress, + const uint8_t Blocks, const uint16_t BlockSize, void* BufferPtr) ATTR_NON_NULL_PTR_ARG(5); + uint8_t MassStore_WriteDeviceBlock(const uint8_t LUNIndex, const uint32_t BlockAddress, + const uint8_t Blocks, const uint16_t BlockSize, void* BufferPtr) ATTR_NON_NULL_PTR_ARG(5); + uint8_t MassStore_ReadCapacity(const uint8_t LUNIndex, SCSI_Capacity_t* const CapacityPtr) + ATTR_NON_NULL_PTR_ARG(2); + uint8_t MassStore_TestUnitReady(const uint8_t LUNIndex); + uint8_t MassStore_PreventAllowMediumRemoval(const uint8_t LUNIndex, const bool PreventRemoval); + +#endif -- cgit v1.2.3