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

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2010.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2010  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 /** \ingroup Group_USBClassMS
  32  *  @defgroup Group_USBClassMSCommon  Common Class Definitions
  33  *
  34  *  \section Module Description
  35  *  Constants, Types and Enum definitions that are common to both Device and Host modes for the USB
  36  *  Mass Storage Class.
  37  *
  38  *  @{
  39  */
  40
  41 #ifndef _MS_CLASS_COMMON_H_
  42 #define _MS_CLASS_COMMON_H_
  43
  44         /* Includes: */
  45                 #include "../../USB.h"
  46
  47                 #include <string.h>
  48
  49         /* Enable C linkage for C++ Compilers: */
  50                 #if defined(__cplusplus)
  51                         extern "C" {
  52                 #endif
  53
  54         /* Preprocessor Checks: */
  55                 #if !defined(__INCLUDE_FROM_MS_DRIVER)
  56                         #error Do not include this file directly. Include LUFA/Drivers/Class/MassStorage.h instead.
  57                 #endif
  58
  59         /* Macros: */
  60                 /** Mass Storage Class specific request to reset the Mass Storage interface, ready for the next command. */
  61                 #define REQ_MassStorageReset       0xFF
  62
  63                 /** Mass Storage Class specific request to retrieve the total number of Logical Units (drives) in the SCSI device. */
  64                 #define REQ_GetMaxLUN              0xFE
  65
  66                 /** Magic signature for a Command Block Wrapper used in the Mass Storage Bulk-Only transport protocol. */
  67                 #define MS_CBW_SIGNATURE           0x43425355UL
  68
  69                 /** Magic signature for a Command Status Wrapper used in the Mass Storage Bulk-Only transport protocol. */
  70                 #define MS_CSW_SIGNATURE           0x53425355UL
  71
  72                 /** Mask for a Command Block Wrapper's flags attribute to specify a command with data sent from host-to-device. */
  73                 #define MS_COMMAND_DIR_DATA_OUT    (0 << 7)
  74
  75                 /** Mask for a Command Block Wrapper's flags attribute to specify a command with data sent from device-to-host. */
  76                 #define MS_COMMAND_DIR_DATA_IN     (1 << 7)
  77
  78                 /** SCSI Command Code for an INQUIRY command. */
  79                 #define SCSI_CMD_INQUIRY                               0x12
  80
  81                 /** SCSI Command Code for a REQUEST SENSE command. */
  82                 #define SCSI_CMD_REQUEST_SENSE                         0x03
  83
  84                 /** SCSI Command Code for a TEST UNIT READY command. */
  85                 #define SCSI_CMD_TEST_UNIT_READY                       0x00
  86
  87                 /** SCSI Command Code for a READ CAPACITY (10) command. */
  88                 #define SCSI_CMD_READ_CAPACITY_10                      0x25
  89
  90                 /** SCSI Command Code for a SEND DIAGNOSTIC command. */
  91                 #define SCSI_CMD_SEND_DIAGNOSTIC                       0x1D
  92
  93                 /** SCSI Command Code for a PREVENT ALLOW MEDIUM REMOVAL command. */
  94                 #define SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL          0x1E
  95
  96                 /** SCSI Command Code for a WRITE (10) command. */
  97                 #define SCSI_CMD_WRITE_10                              0x2A
  98
  99                 /** SCSI Command Code for a READ (10) command. */
 100                 #define SCSI_CMD_READ_10                               0x28
 101
 102                 /** SCSI Command Code for a WRITE (6) command. */
 103                 #define SCSI_CMD_WRITE_6                               0x0A
 104
 105                 /** SCSI Command Code for a READ (6) command. */
 106                 #define SCSI_CMD_READ_6                                0x08
 107
 108                 /** SCSI Command Code for a VERIFY (10) command. */
 109                 #define SCSI_CMD_VERIFY_10                             0x2F
 110
 111                 /** SCSI Command Code for a MODE SENSE (6) command. */
 112                 #define SCSI_CMD_MODE_SENSE_6                          0x1A
 113
 114                 /** SCSI Command Code for a MODE SENSE (10) command. */
 115                 #define SCSI_CMD_MODE_SENSE_10                         0x5A
 116
 117                 /** SCSI Sense Code to indicate no error has occurred. */
 118                 #define SCSI_SENSE_KEY_GOOD                            0x00
 119
 120                 /** SCSI Sense Code to indicate that the device has recovered from an error. */
 121                 #define SCSI_SENSE_KEY_RECOVERED_ERROR                 0x01
 122
 123                 /** SCSI Sense Code to indicate that the device is not ready for a new command. */
 124                 #define SCSI_SENSE_KEY_NOT_READY                       0x02
 125
 126                 /** SCSI Sense Code to indicate an error whilst accessing the medium. */
 127                 #define SCSI_SENSE_KEY_MEDIUM_ERROR                    0x03
 128
 129                 /** SCSI Sense Code to indicate a hardware has occurred. */
 130                 #define SCSI_SENSE_KEY_HARDWARE_ERROR                  0x04
 131
 132                 /** SCSI Sense Code to indicate that an illegal request has been issued. */
 133                 #define SCSI_SENSE_KEY_ILLEGAL_REQUEST                 0x05
 134
 135                 /** SCSI Sense Code to indicate that the unit requires attention from the host to indicate
 136                  *  a reset event, medium removal or other condition.
 137                  */
 138                 #define SCSI_SENSE_KEY_UNIT_ATTENTION                  0x06
 139
 140                 /** SCSI Sense Code to indicate that a write attempt on a protected block has been made. */
 141                 #define SCSI_SENSE_KEY_DATA_PROTECT                    0x07
 142
 143                 /** SCSI Sense Code to indicate an error while trying to write to a write-once medium. */
 144                 #define SCSI_SENSE_KEY_BLANK_CHECK                     0x08
 145
 146                 /** SCSI Sense Code to indicate a vendor specific error has occurred. */
 147                 #define SCSI_SENSE_KEY_VENDOR_SPECIFIC                 0x09
 148
 149                 /** SCSI Sense Code to indicate that an EXTENDED COPY command has aborted due to an error. */
 150                 #define SCSI_SENSE_KEY_COPY_ABORTED                    0x0A
 151
 152                 /** SCSI Sense Code to indicate that the device has aborted the issued command. */
 153                 #define SCSI_SENSE_KEY_ABORTED_COMMAND                 0x0B
 154
 155                 /** SCSI Sense Code to indicate an attempt to write past the end of a partition has been made. */
 156                 #define SCSI_SENSE_KEY_VOLUME_OVERFLOW                 0x0D
 157
 158                 /** SCSI Sense Code to indicate that the source data did not match the data read from the medium. */
 159                 #define SCSI_SENSE_KEY_MISCOMPARE                      0x0E
 160
 161                 /** SCSI Additional Sense Code to indicate no additional sense information is available. */
 162                 #define SCSI_ASENSE_NO_ADDITIONAL_INFORMATION          0x00
 163
 164                 /** SCSI Additional Sense Code to indicate that the logical unit (LUN) addressed is not ready. */
 165                 #define SCSI_ASENSE_LOGICAL_UNIT_NOT_READY             0x04
 166
 167                 /** SCSI Additional Sense Code to indicate an invalid field was encountered while processing the issued command. */
 168                 #define SCSI_ASENSE_INVALID_FIELD_IN_CDB               0x24
 169
 170                 /** SCSI Additional Sense Code to indicate that an attempt to write to a protected area was made. */
 171                 #define SCSI_ASENSE_WRITE_PROTECTED                    0x27
 172
 173                 /** SCSI Additional Sense Code to indicate an error whilst formatting the device medium. */
 174                 #define SCSI_ASENSE_FORMAT_ERROR                       0x31
 175
 176                 /** SCSI Additional Sense Code to indicate an invalid command was issued. */
 177                 #define SCSI_ASENSE_INVALID_COMMAND                    0x20
 178
 179                 /** SCSI Additional Sense Code to indicate a write to a block out outside of the medium's range was issued. */
 180                 #define SCSI_ASENSE_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE 0x21
 181
 182                 /** SCSI Additional Sense Code to indicate that no removable medium is inserted into the device. */
 183                 #define SCSI_ASENSE_MEDIUM_NOT_PRESENT                 0x3A
 184
 185                 /** SCSI Additional Sense Qualifier Code to indicate no additional sense qualifier information is available. */
 186                 #define SCSI_ASENSEQ_NO_QUALIFIER                      0x00
 187
 188                 /** SCSI Additional Sense Qualifier Code to indicate that a medium format command failed to complete. */
 189                 #define SCSI_ASENSEQ_FORMAT_COMMAND_FAILED             0x01
 190
 191                 /** SCSI Additional Sense Qualifier Code to indicate that an initializing command must be issued before the issued
 192                  *  command can be executed.
 193                  */
 194                 #define SCSI_ASENSEQ_INITIALIZING_COMMAND_REQUIRED     0x02
 195
 196                 /** SCSI Additional Sense Qualifier Code to indicate that an operation is currently in progress. */
 197                 #define SCSI_ASENSEQ_OPERATION_IN_PROGRESS             0x07
 198
 199         /* Type defines: */
 200                 /** Type define for a Command Block Wrapper, used in the Mass Storage Bulk-Only Transport protocol. */
 201                 typedef struct
 202                 {
 203                         uint32_t Signature; /**< Command block signature, must be CBW_SIGNATURE to indicate a valid Command Block */
 204                         uint32_t Tag; /**< Unique command ID value, to associate a command block wrapper with its command status wrapper */
 205                         uint32_t DataTransferLength; /** Length of the optional data portion of the issued command, in bytes */
 206                         uint8_t  Flags; /**< Command block flags, indicating command data direction */
 207                         uint8_t  LUN; /**< Logical Unit number this command is issued to */
 208                         uint8_t  SCSICommandLength; /**< Length of the issued SCSI command within the SCSI command data array */
 209                         uint8_t  SCSICommandData[16]; /**< Issued SCSI command in the Command Block */
 210                 } MS_CommandBlockWrapper_t;
 211
 212                 /** Type define for a Command Status Wrapper, used in the Mass Storage Bulk-Only Transport protocol. */
 213                 typedef struct
 214                 {
 215                         uint32_t Signature; /**< Status block signature, must be CSW_SIGNATURE to indicate a valid Command Status */
 216                         uint32_t Tag; /**< Unique command ID value, to associate a command block wrapper with its command status wrapper */
 217                         uint32_t DataTransferResidue; /**< Number of bytes of data not processed in the SCSI command */
 218                         uint8_t  Status; /**< Status code of the issued command - a value from the MassStorage_CommandStatusCodes_t enum */
 219                 } MS_CommandStatusWrapper_t;
 220
 221                 /** Type define for a SCSI Sense structure. Structures of this type are filled out by the
 222                  *  device via the MassStore_RequestSense() function, indicating the current sense data of the
 223                  *  device (giving explicit error codes for the last issued command). For details of the
 224                  *  structure contents, refer to the SCSI specifications.
 225                  */
 226                 typedef struct
 227                 {
 228                         uint8_t       ResponseCode;
 229
 230                         uint8_t       SegmentNumber;
 231
 232                         unsigned char SenseKey            : 4;
 233                         unsigned char _RESERVED1          : 1;
 234                         unsigned char ILI                 : 1;
 235                         unsigned char EOM                 : 1;
 236                         unsigned char FileMark            : 1;
 237
 238                         uint8_t      Information[4];
 239                         uint8_t      AdditionalLength;
 240                         uint8_t      CmdSpecificInformation[4];
 241                         uint8_t      AdditionalSenseCode;
 242                         uint8_t      AdditionalSenseQualifier;
 243                         uint8_t      FieldReplaceableUnitCode;
 244                         uint8_t      SenseKeySpecific[3];
 245                 } SCSI_Request_Sense_Response_t;
 246
 247                 /** Type define for a SCSI Inquiry structure. Structures of this type are filled out by the
 248                  *  device via the MassStore_Inquiry() function, retrieving the attached device's information.
 249                  *  For details of the structure contents, refer to the SCSI specifications.
 250                  */
 251                 typedef struct
 252                 {
 253                         unsigned char DeviceType          : 5;
 254                         unsigned char PeripheralQualifier : 3;
 255
 256                         unsigned char _RESERVED1          : 7;
 257                         unsigned char Removable           : 1;
 258
 259                         uint8_t      Version;
 260
 261                         unsigned char ResponseDataFormat  : 4;
 262                         unsigned char _RESERVED2          : 1;
 263                         unsigned char NormACA             : 1;
 264                         unsigned char TrmTsk              : 1;
 265                         unsigned char AERC                : 1;
 266
 267                         uint8_t      AdditionalLength;
 268                         uint8_t      _RESERVED3[2];
 269
 270                         unsigned char SoftReset           : 1;
 271                         unsigned char CmdQue              : 1;
 272                         unsigned char _RESERVED4          : 1;
 273                         unsigned char Linked              : 1;
 274                         unsigned char Sync                : 1;
 275                         unsigned char WideBus16Bit        : 1;
 276                         unsigned char WideBus32Bit        : 1;
 277                         unsigned char RelAddr             : 1;
 278
 279                         uint8_t      VendorID[8];
 280                         uint8_t      ProductID[16];
 281                         uint8_t      RevisionID[4];
 282                 } SCSI_Inquiry_Response_t;
 283
 284         /* Enums: */
 285                 /** Enum for the possible command status wrapper return status codes. */
 286                 enum MassStorage_CommandStatusCodes_t
 287                 {
 288                         SCSI_Command_Pass = 0, /**< Command completed with no error */
 289                         SCSI_Command_Fail = 1, /**< Command failed to complete - host may check the exact error via a SCSI REQUEST SENSE command */
 290                         SCSI_Phase_Error  = 2  /**< Command failed due to being invalid in the current phase */
 291                 };
 292
 293         /* Disable C linkage for C++ Compilers: */
 294                 #if defined(__cplusplus)
 295                         }
 296                 #endif
 297
 298 #endif
 299
 300 /** @} */