LUFA/Drivers/USB/Class/Common/MassStorageClassCommon.h

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2012.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2012  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 /** \file
  32  *  \brief Common definitions and declarations for the library USB Mass Storage Class driver.
  33  *
  34  *  Common definitions and declarations for the library USB Mass Storage Class driver.
  35  *
  36  *  \note This file should not be included directly. It is automatically included as needed by the USB module driver
  37  *        dispatch header located in LUFA/Drivers/USB.h.
  38  */
  39
  40 /** \ingroup Group_USBClassMS
  41  *  \defgroup Group_USBClassMSCommon  Common Class Definitions
  42  *
  43  *  \section Sec_ModDescription Module Description
  44  *  Constants, Types and Enum definitions that are common to both Device and Host modes for the USB
  45  *  Mass Storage Class.
  46  *
  47  *  @{
  48  */
  49
  50 #ifndef _MS_CLASS_COMMON_H_
  51 #define _MS_CLASS_COMMON_H_
  52
  53         /* Includes: */
  54                 #include "../../Core/StdDescriptors.h"
  55
  56         /* Enable C linkage for C++ Compilers: */
  57                 #if defined(__cplusplus)
  58                         extern "C" {
  59                 #endif
  60
  61         /* Preprocessor Checks: */
  62                 #if !defined(__INCLUDE_FROM_MS_DRIVER)
  63                         #error Do not include this file directly. Include LUFA/Drivers/USB.h instead.
  64                 #endif
  65
  66         /* Macros: */
  67                 /** Magic signature for a Command Block Wrapper used in the Mass Storage Bulk-Only transport protocol. */
  68                 #define MS_CBW_SIGNATURE                               0x43425355UL
  69
  70                 /** Magic signature for a Command Status Wrapper used in the Mass Storage Bulk-Only transport protocol. */
  71                 #define MS_CSW_SIGNATURE                               0x53425355UL
  72
  73                 /** Mask for a Command Block Wrapper's flags attribute to specify a command with data sent from host-to-device. */
  74                 #define MS_COMMAND_DIR_DATA_OUT                        (0 << 7)
  75
  76                 /** Mask for a Command Block Wrapper's flags attribute to specify a command with data sent from device-to-host. */
  77                 #define MS_COMMAND_DIR_DATA_IN                         (1 << 7)
  78
  79                 /** \name SCSI Commands*/
  80                 //@{
  81                 /** SCSI Command Code for an INQUIRY command. */
  82                 #define SCSI_CMD_INQUIRY                               0x12
  83
  84                 /** SCSI Command Code for a REQUEST SENSE command. */
  85                 #define SCSI_CMD_REQUEST_SENSE                         0x03
  86
  87                 /** SCSI Command Code for a TEST UNIT READY command. */
  88                 #define SCSI_CMD_TEST_UNIT_READY                       0x00
  89
  90                 /** SCSI Command Code for a READ CAPACITY (10) command. */
  91                 #define SCSI_CMD_READ_CAPACITY_10                      0x25
  92
  93                 /** SCSI Command Code for a SEND DIAGNOSTIC command. */
  94                 #define SCSI_CMD_SEND_DIAGNOSTIC                       0x1D
  95
  96                 /** SCSI Command Code for a PREVENT ALLOW MEDIUM REMOVAL command. */
  97                 #define SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL          0x1E
  98
  99                 /** SCSI Command Code for a WRITE (10) command. */
 100                 #define SCSI_CMD_WRITE_10                              0x2A
 101
 102                 /** SCSI Command Code for a READ (10) command. */
 103                 #define SCSI_CMD_READ_10                               0x28
 104
 105                 /** SCSI Command Code for a WRITE (6) command. */
 106                 #define SCSI_CMD_WRITE_6                               0x0A
 107
 108                 /** SCSI Command Code for a READ (6) command. */
 109                 #define SCSI_CMD_READ_6                                0x08
 110
 111                 /** SCSI Command Code for a VERIFY (10) command. */
 112                 #define SCSI_CMD_VERIFY_10                             0x2F
 113
 114                 /** SCSI Command Code for a MODE SENSE (6) command. */
 115                 #define SCSI_CMD_MODE_SENSE_6                          0x1A
 116
 117                 /** SCSI Command Code for a MODE SENSE (10) command. */
 118                 #define SCSI_CMD_MODE_SENSE_10                         0x5A
 119                 //@}
 120
 121                 /** \name SCSI Sense Key Values */
 122                 //@{
 123                 /** SCSI Sense Code to indicate no error has occurred. */
 124                 #define SCSI_SENSE_KEY_GOOD                            0x00
 125
 126                 /** SCSI Sense Code to indicate that the device has recovered from an error. */
 127                 #define SCSI_SENSE_KEY_RECOVERED_ERROR                 0x01
 128
 129                 /** SCSI Sense Code to indicate that the device is not ready for a new command. */
 130                 #define SCSI_SENSE_KEY_NOT_READY                       0x02
 131
 132                 /** SCSI Sense Code to indicate an error whilst accessing the medium. */
 133                 #define SCSI_SENSE_KEY_MEDIUM_ERROR                    0x03
 134
 135                 /** SCSI Sense Code to indicate a hardware error has occurred. */
 136                 #define SCSI_SENSE_KEY_HARDWARE_ERROR                  0x04
 137
 138                 /** SCSI Sense Code to indicate that an illegal request has been issued. */
 139                 #define SCSI_SENSE_KEY_ILLEGAL_REQUEST                 0x05
 140
 141                 /** SCSI Sense Code to indicate that the unit requires attention from the host to indicate
 142                  *  a reset event, medium removal or other condition.
 143                  */
 144                 #define SCSI_SENSE_KEY_UNIT_ATTENTION                  0x06
 145
 146                 /** SCSI Sense Code to indicate that a write attempt on a protected block has been made. */
 147                 #define SCSI_SENSE_KEY_DATA_PROTECT                    0x07
 148
 149                 /** SCSI Sense Code to indicate an error while trying to write to a write-once medium. */
 150                 #define SCSI_SENSE_KEY_BLANK_CHECK                     0x08
 151
 152                 /** SCSI Sense Code to indicate a vendor specific error has occurred. */
 153                 #define SCSI_SENSE_KEY_VENDOR_SPECIFIC                 0x09
 154
 155                 /** SCSI Sense Code to indicate that an EXTENDED COPY command has aborted due to an error. */
 156                 #define SCSI_SENSE_KEY_COPY_ABORTED                    0x0A
 157
 158                 /** SCSI Sense Code to indicate that the device has aborted the issued command. */
 159                 #define SCSI_SENSE_KEY_ABORTED_COMMAND                 0x0B
 160
 161                 /** SCSI Sense Code to indicate an attempt to write past the end of a partition has been made. */
 162                 #define SCSI_SENSE_KEY_VOLUME_OVERFLOW                 0x0D
 163
 164                 /** SCSI Sense Code to indicate that the source data did not match the data read from the medium. */
 165                 #define SCSI_SENSE_KEY_MISCOMPARE                      0x0E
 166                 //@}
 167
 168                 /** \name SCSI Additional Sense Codes */
 169                 //@{
 170                 /** SCSI Additional Sense Code to indicate no additional sense information is available. */
 171                 #define SCSI_ASENSE_NO_ADDITIONAL_INFORMATION          0x00
 172
 173                 /** SCSI Additional Sense Code to indicate that the logical unit (LUN) addressed is not ready. */
 174                 #define SCSI_ASENSE_LOGICAL_UNIT_NOT_READY             0x04
 175
 176                 /** SCSI Additional Sense Code to indicate an invalid field was encountered while processing the issued command. */
 177                 #define SCSI_ASENSE_INVALID_FIELD_IN_CDB               0x24
 178
 179                 /** SCSI Additional Sense Code to indicate that a medium that was previously indicated as not ready has now
 180                  *  become ready for use.
 181                  */
 182                 #define SCSI_ASENSE_NOT_READY_TO_READY_CHANGE          0x28
 183
 184                 /** SCSI Additional Sense Code to indicate that an attempt to write to a protected area was made. */
 185                 #define SCSI_ASENSE_WRITE_PROTECTED                    0x27
 186
 187                 /** SCSI Additional Sense Code to indicate an error whilst formatting the device medium. */
 188                 #define SCSI_ASENSE_FORMAT_ERROR                       0x31
 189
 190                 /** SCSI Additional Sense Code to indicate an invalid command was issued. */
 191                 #define SCSI_ASENSE_INVALID_COMMAND                    0x20
 192
 193                 /** SCSI Additional Sense Code to indicate a write to a block out outside of the medium's range was issued. */
 194                 #define SCSI_ASENSE_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE 0x21
 195
 196                 /** SCSI Additional Sense Code to indicate that no removable medium is inserted into the device. */
 197                 #define SCSI_ASENSE_MEDIUM_NOT_PRESENT                 0x3A
 198                 //@}
 199
 200                 /** \name SCSI Additional Sense Key Code Qualifiers */
 201                 //@{
 202                 /** SCSI Additional Sense Qualifier Code to indicate no additional sense qualifier information is available. */
 203                 #define SCSI_ASENSEQ_NO_QUALIFIER                      0x00
 204
 205                 /** SCSI Additional Sense Qualifier Code to indicate that a medium format command failed to complete. */
 206                 #define SCSI_ASENSEQ_FORMAT_COMMAND_FAILED             0x01
 207
 208                 /** SCSI Additional Sense Qualifier Code to indicate that an initializing command must be issued before the issued
 209                  *  command can be executed.
 210                  */
 211                 #define SCSI_ASENSEQ_INITIALIZING_COMMAND_REQUIRED     0x02
 212
 213                 /** SCSI Additional Sense Qualifier Code to indicate that an operation is currently in progress. */
 214                 #define SCSI_ASENSEQ_OPERATION_IN_PROGRESS             0x07
 215                 //@}
 216
 217         /* Enums: */
 218                 /** Enum for possible Class, Subclass and Protocol values of device and interface descriptors relating to the Mass
 219                  *  Storage device class.
 220                  */
 221                 enum MS_Descriptor_ClassSubclassProtocol_t
 222                 {
 223                         MS_CSCP_MassStorageClass          = 0x08, /**< Descriptor Class value indicating that the device or interface
 224                                                                    *   belongs to the Mass Storage class.
 225                                                                    */
 226                         MS_CSCP_SCSITransparentSubclass   = 0x06, /**< Descriptor Subclass value indicating that the device or interface
 227                                                                    *   belongs to the SCSI Transparent Command Set subclass of the Mass
 228                                                                    *   storage class.
 229                                                                    */
 230                         MS_CSCP_BulkOnlyTransportProtocol = 0x50, /**< Descriptor Protocol value indicating that the device or interface
 231                                                                    *   belongs to the Bulk Only Transport protocol of the Mass Storage class.
 232                                                                    */
 233                 };
 234
 235                 /** Enum for the Mass Storage class specific control requests that can be issued by the USB bus host. */
 236                 enum MS_ClassRequests_t
 237                 {
 238                         MS_REQ_GetMaxLUN                  = 0xFE, /**< Mass Storage class-specific request to retrieve the total number of Logical
 239                                                                    *   Units (drives) in the SCSI device.
 240                                                                    */
 241                         MS_REQ_MassStorageReset           = 0xFF, /**< Mass Storage class-specific request to reset the Mass Storage interface,
 242                                                                    *   ready for the next command.
 243                                                                */
 244                 };
 245
 246                 /** Enum for the possible command status wrapper return status codes. */
 247                 enum MS_CommandStatusCodes_t
 248                 {
 249                         MS_SCSI_COMMAND_Pass              = 0, /**< Command completed with no error */
 250                         MS_SCSI_COMMAND_Fail              = 1, /**< Command failed to complete - host may check the exact error via a
 251                                                                 *   SCSI REQUEST SENSE command.
 252                                                                 */
 253                         MS_SCSI_COMMAND_PhaseError        = 2, /**< Command failed due to being invalid in the current phase. */
 254                 };
 255
 256         /* Type Defines: */
 257                 /** \brief Mass Storage Class Command Block Wrapper.
 258                  *
 259                  *  Type define for a Command Block Wrapper, used in the Mass Storage Bulk-Only Transport protocol.
 260                  *
 261                  *  \note Regardless of CPU architecture, these values should be stored as little endian.
 262                  */
 263                 typedef struct
 264                 {
 265                         uint32_t Signature; /**< Command block signature, must be \ref MS_CBW_SIGNATURE to indicate a valid Command Block. */
 266                         uint32_t Tag; /**< Unique command ID value, to associate a command block wrapper with its command status wrapper. */
 267                         uint32_t DataTransferLength; /**< Length of the optional data portion of the issued command, in bytes. */
 268                         uint8_t  Flags; /**< Command block flags, indicating command data direction. */
 269                         uint8_t  LUN; /**< Logical Unit number this command is issued to. */
 270                         uint8_t  SCSICommandLength; /**< Length of the issued SCSI command within the SCSI command data array. */
 271                         uint8_t  SCSICommandData[16]; /**< Issued SCSI command in the Command Block. */
 272                 } ATTR_PACKED MS_CommandBlockWrapper_t;
 273
 274                 /** \brief Mass Storage Class Command Status Wrapper.
 275                  *
 276                  *  Type define for a Command Status Wrapper, used in the Mass Storage Bulk-Only Transport protocol.
 277                  *
 278                  *  \note Regardless of CPU architecture, these values should be stored as little endian.
 279                  */
 280                 typedef struct
 281                 {
 282                         uint32_t Signature; /**< Status block signature, must be \ref MS_CSW_SIGNATURE to indicate a valid Command Status. */
 283                         uint32_t Tag; /**< Unique command ID value, to associate a command block wrapper with its command status wrapper. */
 284                         uint32_t DataTransferResidue; /**< Number of bytes of data not processed in the SCSI command. */
 285                         uint8_t  Status; /**< Status code of the issued command - a value from the \ref MS_CommandStatusCodes_t enum. */
 286                 } ATTR_PACKED MS_CommandStatusWrapper_t;
 287
 288                 /** \brief Mass Storage Class SCSI Sense Structure
 289                  *
 290                  *  Type define for a SCSI Sense structure. Structures of this type are filled out by the
 291                  *  device via the \ref MS_Host_RequestSense() function, indicating the current sense data of the
 292                  *  device (giving explicit error codes for the last issued command). For details of the
 293                  *  structure contents, refer to the SCSI specifications.
 294                  */
 295                 typedef struct
 296                 {
 297                         uint8_t  ResponseCode;
 298
 299                         uint8_t  SegmentNumber;
 300
 301                         unsigned SenseKey            : 4;
 302                         unsigned Reserved            : 1;
 303                         unsigned ILI                 : 1;
 304                         unsigned EOM                 : 1;
 305                         unsigned FileMark            : 1;
 306
 307                         uint8_t  Information[4];
 308                         uint8_t  AdditionalLength;
 309                         uint8_t  CmdSpecificInformation[4];
 310                         uint8_t  AdditionalSenseCode;
 311                         uint8_t  AdditionalSenseQualifier;
 312                         uint8_t  FieldReplaceableUnitCode;
 313                         uint8_t  SenseKeySpecific[3];
 314                 } ATTR_PACKED SCSI_Request_Sense_Response_t;
 315
 316                 /** \brief Mass Storage Class SCSI Inquiry Structure.
 317                  *
 318                  *  Type define for a SCSI Inquiry structure. Structures of this type are filled out by the
 319                  *  device via the \ref MS_Host_GetInquiryData() function, retrieving the attached device's
 320                  *  information.
 321                  *
 322                  *  For details of the structure contents, refer to the SCSI specifications.
 323                  */
 324                 typedef struct
 325                 {
 326                         unsigned DeviceType          : 5;
 327                         unsigned PeripheralQualifier : 3;
 328
 329                         unsigned Reserved            : 7;
 330                         unsigned Removable           : 1;
 331
 332                         uint8_t  Version;
 333
 334                         unsigned ResponseDataFormat  : 4;
 335                         unsigned Reserved2           : 1;
 336                         unsigned NormACA             : 1;
 337                         unsigned TrmTsk              : 1;
 338                         unsigned AERC                : 1;
 339
 340                         uint8_t  AdditionalLength;
 341                         uint8_t  Reserved3[2];
 342
 343                         unsigned SoftReset           : 1;
 344                         unsigned CmdQue              : 1;
 345                         unsigned Reserved4           : 1;
 346                         unsigned Linked              : 1;
 347                         unsigned Sync                : 1;
 348                         unsigned WideBus16Bit        : 1;
 349                         unsigned WideBus32Bit        : 1;
 350                         unsigned RelAddr             : 1;
 351
 352                         uint8_t  VendorID[8];
 353                         uint8_t  ProductID[16];
 354                         uint8_t  RevisionID[4];
 355                 } ATTR_PACKED SCSI_Inquiry_Response_t;
 356
 357         /* Disable C linkage for C++ Compilers: */
 358                 #if defined(__cplusplus)
 359                         }
 360                 #endif
 361
 362 #endif
 363
 364 /** @} */
 365