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Diffstat (limited to 'LUFA/Drivers/USB/Class/Common/MassStorageClassCommon.h')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Common/MassStorageClassCommon.h | 365 |
1 files changed, 365 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Class/Common/MassStorageClassCommon.h b/LUFA/Drivers/USB/Class/Common/MassStorageClassCommon.h new file mode 100644 index 000000000..49246ba7d --- /dev/null +++ b/LUFA/Drivers/USB/Class/Common/MassStorageClassCommon.h @@ -0,0 +1,365 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2011. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, 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 + * \brief Common definitions and declarations for the library USB Mass Storage Class driver. + * + * Common definitions and declarations for the library USB Mass Storage Class driver. + * + * \note This file should not be included directly. It is automatically included as needed by the USB module driver + * dispatch header located in LUFA/Drivers/USB.h. + */ + +/** \ingroup Group_USBClassMS + * \defgroup Group_USBClassMSCommon Common Class Definitions + * + * \section Sec_ModDescription Module Description + * Constants, Types and Enum definitions that are common to both Device and Host modes for the USB + * Mass Storage Class. + * + * @{ + */ + +#ifndef _MS_CLASS_COMMON_H_ +#define _MS_CLASS_COMMON_H_ + + /* Includes: */ + #include "../../Core/StdDescriptors.h" + + /* Enable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + extern "C" { + #endif + + /* Preprocessor Checks: */ + #if !defined(__INCLUDE_FROM_MS_DRIVER) + #error Do not include this file directly. Include LUFA/Drivers/USB.h instead. + #endif + + /* Macros: */ + /** Magic signature for a Command Block Wrapper used in the Mass Storage Bulk-Only transport protocol. */ + #define MS_CBW_SIGNATURE 0x43425355UL + + /** Magic signature for a Command Status Wrapper used in the Mass Storage Bulk-Only transport protocol. */ + #define MS_CSW_SIGNATURE 0x53425355UL + + /** Mask for a Command Block Wrapper's flags attribute to specify a command with data sent from host-to-device. */ + #define MS_COMMAND_DIR_DATA_OUT (0 << 7) + + /** Mask for a Command Block Wrapper's flags attribute to specify a command with data sent from device-to-host. */ + #define MS_COMMAND_DIR_DATA_IN (1 << 7) + + /** \name SCSI Commands*/ + //@{ + /** SCSI Command Code for an INQUIRY command. */ + #define SCSI_CMD_INQUIRY 0x12 + + /** SCSI Command Code for a REQUEST SENSE command. */ + #define SCSI_CMD_REQUEST_SENSE 0x03 + + /** SCSI Command Code for a TEST UNIT READY command. */ + #define SCSI_CMD_TEST_UNIT_READY 0x00 + + /** SCSI Command Code for a READ CAPACITY (10) command. */ + #define SCSI_CMD_READ_CAPACITY_10 0x25 + + /** SCSI Command Code for a SEND DIAGNOSTIC command. */ + #define SCSI_CMD_SEND_DIAGNOSTIC 0x1D + + /** SCSI Command Code for a PREVENT ALLOW MEDIUM REMOVAL command. */ + #define SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1E + + /** SCSI Command Code for a WRITE (10) command. */ + #define SCSI_CMD_WRITE_10 0x2A + + /** SCSI Command Code for a READ (10) command. */ + #define SCSI_CMD_READ_10 0x28 + + /** SCSI Command Code for a WRITE (6) command. */ + #define SCSI_CMD_WRITE_6 0x0A + + /** SCSI Command Code for a READ (6) command. */ + #define SCSI_CMD_READ_6 0x08 + + /** SCSI Command Code for a VERIFY (10) command. */ + #define SCSI_CMD_VERIFY_10 0x2F + + /** SCSI Command Code for a MODE SENSE (6) command. */ + #define SCSI_CMD_MODE_SENSE_6 0x1A + + /** SCSI Command Code for a MODE SENSE (10) command. */ + #define SCSI_CMD_MODE_SENSE_10 0x5A + //@} + + /** \name SCSI Sense Key Values */ + //@{ + /** SCSI Sense Code to indicate no error has occurred. */ + #define SCSI_SENSE_KEY_GOOD 0x00 + + /** SCSI Sense Code to indicate that the device has recovered from an error. */ + #define SCSI_SENSE_KEY_RECOVERED_ERROR 0x01 + + /** SCSI Sense Code to indicate that the device is not ready for a new command. */ + #define SCSI_SENSE_KEY_NOT_READY 0x02 + + /** SCSI Sense Code to indicate an error whilst accessing the medium. */ + #define SCSI_SENSE_KEY_MEDIUM_ERROR 0x03 + + /** SCSI Sense Code to indicate a hardware error has occurred. */ + #define SCSI_SENSE_KEY_HARDWARE_ERROR 0x04 + + /** SCSI Sense Code to indicate that an illegal request has been issued. */ + #define SCSI_SENSE_KEY_ILLEGAL_REQUEST 0x05 + + /** SCSI Sense Code to indicate that the unit requires attention from the host to indicate + * a reset event, medium removal or other condition. + */ + #define SCSI_SENSE_KEY_UNIT_ATTENTION 0x06 + + /** SCSI Sense Code to indicate that a write attempt on a protected block has been made. */ + #define SCSI_SENSE_KEY_DATA_PROTECT 0x07 + + /** SCSI Sense Code to indicate an error while trying to write to a write-once medium. */ + #define SCSI_SENSE_KEY_BLANK_CHECK 0x08 + + /** SCSI Sense Code to indicate a vendor specific error has occurred. */ + #define SCSI_SENSE_KEY_VENDOR_SPECIFIC 0x09 + + /** SCSI Sense Code to indicate that an EXTENDED COPY command has aborted due to an error. */ + #define SCSI_SENSE_KEY_COPY_ABORTED 0x0A + + /** SCSI Sense Code to indicate that the device has aborted the issued command. */ + #define SCSI_SENSE_KEY_ABORTED_COMMAND 0x0B + + /** SCSI Sense Code to indicate an attempt to write past the end of a partition has been made. */ + #define SCSI_SENSE_KEY_VOLUME_OVERFLOW 0x0D + + /** SCSI Sense Code to indicate that the source data did not match the data read from the medium. */ + #define SCSI_SENSE_KEY_MISCOMPARE 0x0E + //@} + + /** \name SCSI Additional Sense Codes */ + //@{ + /** SCSI Additional Sense Code to indicate no additional sense information is available. */ + #define SCSI_ASENSE_NO_ADDITIONAL_INFORMATION 0x00 + + /** SCSI Additional Sense Code to indicate that the logical unit (LUN) addressed is not ready. */ + #define SCSI_ASENSE_LOGICAL_UNIT_NOT_READY 0x04 + + /** SCSI Additional Sense Code to indicate an invalid field was encountered while processing the issued command. */ + #define SCSI_ASENSE_INVALID_FIELD_IN_CDB 0x24 + + /** SCSI Additional Sense Code to indicate that a medium that was previously indicated as not ready has now + * become ready for use. + */ + #define SCSI_ASENSE_NOT_READY_TO_READY_CHANGE 0x28 + + /** SCSI Additional Sense Code to indicate that an attempt to write to a protected area was made. */ + #define SCSI_ASENSE_WRITE_PROTECTED 0x27 + + /** SCSI Additional Sense Code to indicate an error whilst formatting the device medium. */ + #define SCSI_ASENSE_FORMAT_ERROR 0x31 + + /** SCSI Additional Sense Code to indicate an invalid command was issued. */ + #define SCSI_ASENSE_INVALID_COMMAND 0x20 + + /** SCSI Additional Sense Code to indicate a write to a block out outside of the medium's range was issued. */ + #define SCSI_ASENSE_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE 0x21 + + /** SCSI Additional Sense Code to indicate that no removable medium is inserted into the device. */ + #define SCSI_ASENSE_MEDIUM_NOT_PRESENT 0x3A + //@} + + /** \name SCSI Additional Sense Key Code Qualifiers */ + //@{ + /** SCSI Additional Sense Qualifier Code to indicate no additional sense qualifier information is available. */ + #define SCSI_ASENSEQ_NO_QUALIFIER 0x00 + + /** SCSI Additional Sense Qualifier Code to indicate that a medium format command failed to complete. */ + #define SCSI_ASENSEQ_FORMAT_COMMAND_FAILED 0x01 + + /** SCSI Additional Sense Qualifier Code to indicate that an initializing command must be issued before the issued + * command can be executed. + */ + #define SCSI_ASENSEQ_INITIALIZING_COMMAND_REQUIRED 0x02 + + /** SCSI Additional Sense Qualifier Code to indicate that an operation is currently in progress. */ + #define SCSI_ASENSEQ_OPERATION_IN_PROGRESS 0x07 + //@} + + /* Enums: */ + /** Enum for possible Class, Subclass and Protocol values of device and interface descriptors relating to the Mass + * Storage device class. + */ + enum MS_Descriptor_ClassSubclassProtocol_t + { + MS_CSCP_MassStorageClass = 0x08, /**< Descriptor Class value indicating that the device or interface + * belongs to the Mass Storage class. + */ + MS_CSCP_SCSITransparentSubclass = 0x06, /**< Descriptor Subclass value indicating that the device or interface + * belongs to the SCSI Transparent Command Set subclass of the Mass + * storage class. + */ + MS_CSCP_BulkOnlyTransportProtocol = 0x50, /**< Descriptor Protocol value indicating that the device or interface + * belongs to the Bulk Only Transport protocol of the Mass Storage class. + */ + }; + + /** Enum for the Mass Storage class specific control requests that can be issued by the USB bus host. */ + enum MS_ClassRequests_t + { + MS_REQ_GetMaxLUN = 0xFE, /**< Mass Storage class-specific request to retrieve the total number of Logical + * Units (drives) in the SCSI device. + */ + MS_REQ_MassStorageReset = 0xFF, /**< Mass Storage class-specific request to reset the Mass Storage interface, + * ready for the next command. + */ + }; + + /** Enum for the possible command status wrapper return status codes. */ + enum MS_CommandStatusCodes_t + { + MS_SCSI_COMMAND_Pass = 0, /**< Command completed with no error */ + MS_SCSI_COMMAND_Fail = 1, /**< Command failed to complete - host may check the exact error via a + * SCSI REQUEST SENSE command. + */ + MS_SCSI_COMMAND_PhaseError = 2, /**< Command failed due to being invalid in the current phase. */ + }; + + /* Type Defines: */ + /** \brief Mass Storage Class Command Block Wrapper. + * + * Type define for a Command Block Wrapper, used in the Mass Storage Bulk-Only Transport protocol. + * + * \note Regardless of CPU architecture, these values should be stored as little endian. + */ + typedef struct + { + uint32_t Signature; /**< Command block signature, must be \ref MS_CBW_SIGNATURE to indicate a valid Command Block. */ + uint32_t Tag; /**< Unique command ID value, to associate a command block wrapper with its command status wrapper. */ + uint32_t DataTransferLength; /**< Length of the optional data portion of the issued command, in bytes. */ + uint8_t Flags; /**< Command block flags, indicating command data direction. */ + uint8_t LUN; /**< Logical Unit number this command is issued to. */ + uint8_t SCSICommandLength; /**< Length of the issued SCSI command within the SCSI command data array. */ + uint8_t SCSICommandData[16]; /**< Issued SCSI command in the Command Block. */ + } ATTR_PACKED MS_CommandBlockWrapper_t; + + /** \brief Mass Storage Class Command Status Wrapper. + * + * Type define for a Command Status Wrapper, used in the Mass Storage Bulk-Only Transport protocol. + * + * \note Regardless of CPU architecture, these values should be stored as little endian. + */ + typedef struct + { + uint32_t Signature; /**< Status block signature, must be \ref MS_CSW_SIGNATURE to indicate a valid Command Status. */ + uint32_t Tag; /**< Unique command ID value, to associate a command block wrapper with its command status wrapper. */ + uint32_t DataTransferResidue; /**< Number of bytes of data not processed in the SCSI command. */ + uint8_t Status; /**< Status code of the issued command - a value from the \ref MS_CommandStatusCodes_t enum. */ + } ATTR_PACKED MS_CommandStatusWrapper_t; + + /** \brief Mass Storage Class SCSI Sense Structure + * + * Type define for a SCSI Sense structure. Structures of this type are filled out by the + * device via the \ref MS_Host_RequestSense() function, indicating the current sense data of the + * device (giving explicit error codes for the last issued command). For details of the + * structure contents, refer to the SCSI specifications. + */ + typedef struct + { + uint8_t ResponseCode; + + uint8_t SegmentNumber; + + unsigned SenseKey : 4; + unsigned Reserved : 1; + unsigned ILI : 1; + unsigned EOM : 1; + unsigned 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]; + } ATTR_PACKED SCSI_Request_Sense_Response_t; + + /** \brief Mass Storage Class SCSI Inquiry Structure. + * + * Type define for a SCSI Inquiry structure. Structures of this type are filled out by the + * device via the \ref MS_Host_GetInquiryData() function, retrieving the attached device's + * information. + * + * For details of the structure contents, refer to the SCSI specifications. + */ + typedef struct + { + unsigned DeviceType : 5; + unsigned PeripheralQualifier : 3; + + unsigned Reserved : 7; + unsigned Removable : 1; + + uint8_t Version; + + unsigned ResponseDataFormat : 4; + unsigned Reserved2 : 1; + unsigned NormACA : 1; + unsigned TrmTsk : 1; + unsigned AERC : 1; + + uint8_t AdditionalLength; + uint8_t Reserved3[2]; + + unsigned SoftReset : 1; + unsigned CmdQue : 1; + unsigned Reserved4 : 1; + unsigned Linked : 1; + unsigned Sync : 1; + unsigned WideBus16Bit : 1; + unsigned WideBus32Bit : 1; + unsigned RelAddr : 1; + + uint8_t VendorID[8]; + uint8_t ProductID[16]; + uint8_t RevisionID[4]; + } ATTR_PACKED SCSI_Inquiry_Response_t; + + /* Disable C linkage for C++ Compilers: */ + #if defined(__cplusplus) + } + #endif + +#endif + +/** @} */ + |