scsi-defs.h

开源备份软件源码 AMANDA, the Advanced Maryland Automatic Network Disk Archiver, is a backup system that a

    PackedBit     pvoltag : 1;
#else
    PackedBit     pvoltag : 1;
    PackedBit     avoltag : 1;
    PackedBit     bitres  : 6;
#endif
    unsigned char length[2];    /* Byte 2-3  = Element Descriptor Length */
    unsigned char byte4;        /* Byte 4 */
    unsigned char count[3];     /* Byte 5-7 = Byte Count of Descriptor Available */
} ElementStatusPage_T;


/* ======================================================= */
/* ElementStatusData_T */
/* ======================================================= */
typedef struct 
{
    unsigned char first[2];    /* Byte 1-2 = First Element Adress Reported */
    unsigned char number[2];   /* Byte 3-4 = Number of Elements Available */
    unsigned char byte5;      /* Reserved */
    unsigned char count[3];     /* Byte 6-8 = Byte Count of Report Available */
} ElementStatusData_T;

/* ======================================================= */
/* MediumTransportElementDescriptor_T */
/* ======================================================= */
typedef struct 
{
    unsigned char address[2];   /* Byte 1-2 = Element Address */
#ifdef LITTLE_ENDIAN_BITFIELDS        
    PackedBit     full   : 1;
    PackedBit     rsvd   : 1;
    PackedBit     except : 1;
    PackedBit     res    : 5;
#else
    PackedBit     res    : 5;
    PackedBit     except : 1;
    PackedBit     rsvd   : 1;
    PackedBit     full   : 1;
#endif
    unsigned char byte4;        /* Byte 4      */
    unsigned char asc;          /* Byte 5 ASC  */
    unsigned char ascq;         /* Byte 6 ASCQ */
    unsigned char byte79[3];    /* Byte 7-9    */
#ifdef LITTLE_ENDIAN_BITFIELDS        
    PackedBit     byte10res : 6;
    PackedBit     invert : 1;
    PackedBit     svalid : 1;
#else
    PackedBit     svalid : 1;
    PackedBit     invert : 1;
    PackedBit     byte10res : 6;
#endif
    unsigned char source[2];
  unsigned char pvoltag[36];
  unsigned char res4[4];
} MediumTransportElementDescriptor_T;

/* ======================================================= */
/* ImportExportElementDescriptor_T */
/* ======================================================= */
typedef struct 
{
  unsigned char address[2];   /* Byte 1 = Element Address */
#ifdef LITTLE_ENDIAN_BITFIELDS        
  PackedBit     full   : 1;
  PackedBit     impexp : 1;
  PackedBit     except : 1;
  PackedBit     access : 1;
  PackedBit     exenab : 1;
  PackedBit     inenab : 1;
  PackedBit     res    : 2;
#else
  PackedBit     res    : 2;
  PackedBit     inenab : 1;
  PackedBit     exenab : 1;
  PackedBit     access : 1;
  PackedBit     except : 1;
  PackedBit     rsvd   : 1;
  PackedBit     full   : 1;
#endif
    unsigned char byte4;
    unsigned char asc;
    unsigned char ascq;
    unsigned char byte79[3];
#ifdef LITTLE_ENDIAN_BITFIELDS        
    PackedBit     byte10res : 6;
    PackedBit     invert : 1;
    PackedBit     svalid : 1;
#else
    PackedBit     svalid : 1;
    PackedBit     invert : 1;
    PackedBit     byte10res : 6;
#endif
    unsigned char source[2];
  unsigned char pvoltag[36];
  unsigned char res4[4];
  unsigned char mediadomain[1];
  unsigned char mediatype[1];
  unsigned char res5[2];
} ImportExportElementDescriptor_T;

/* ======================================================= */
/* StorageElementDescriptor_T */
/* ======================================================= */
typedef struct 
{
    unsigned char address[2];
#ifdef LITTLE_ENDIAN_BITFIELDS        
    PackedBit     full   : 1;
    PackedBit     rsvd   : 1;
    PackedBit     except : 1;
    PackedBit     access : 1;
    PackedBit     res    : 4;
#else
    PackedBit     res    : 4;
    PackedBit     access : 1;
    PackedBit     except : 1;
    PackedBit     rsvd   : 1;
    PackedBit     full   : 1;
#endif
    unsigned char res1;
    unsigned char asc;
    unsigned char ascq;
    unsigned char res2[3];
#ifdef LITTLE_ENDIAN_BITFIELDS        
    PackedBit     res3   : 6;
    PackedBit     invert : 1;
    PackedBit     svalid : 1;
#else
    PackedBit     svalid : 1;
    PackedBit     invert : 1;
    PackedBit     res3   : 6;
#endif
    unsigned char source[2];
  unsigned char pvoltag[36];
  unsigned char res4[4];
  unsigned char mediadomain[1];
  unsigned char mediatype[1];
  unsigned char res5[2];
} StorageElementDescriptor_T;

/* ======================================================= */
/* DataTransferElementDescriptor_T */
/* ======================================================= */
typedef struct 
{
    unsigned char address[2];
#ifdef LITTLE_ENDIAN_BITFIELDS        
    PackedBit     full    : 1;
    PackedBit     rsvd    : 1;
    PackedBit     except  : 1;
    PackedBit     access  : 1;
    PackedBit     res     : 4;
#else
    PackedBit     res     : 4;
    PackedBit     access  : 1;
    PackedBit     except  : 1;
    PackedBit     rsvd    : 1;
    PackedBit     full    : 1;
#endif
    unsigned char res1;
    unsigned char asc;
    unsigned char ascq;
#ifdef LITTLE_ENDIAN_BITFIELDS        
    PackedBit     lun     : 3;
    PackedBit     rsvd1   : 1;
    PackedBit     luvalid : 1;
    PackedBit     idvalid : 1;
    PackedBit     rsvd2   : 1;
    PackedBit     notbus  : 1;
#else
    PackedBit     notbus  : 1;
    PackedBit     rsvd2   : 1;
    PackedBit     idvalid : 1;
    PackedBit     luvalid : 1;
    PackedBit     rsvd1   : 1;
    PackedBit     lun     : 3;
#endif
    unsigned char scsi;
    unsigned char res2;
#ifdef LITTLE_ENDIAN_BITFIELDS        
    PackedBit     res3    : 6;
    PackedBit     invert  : 1;
    PackedBit     svalid  : 1;
#else
    PackedBit     svalid  : 1;
    PackedBit     invert  : 1;
    PackedBit     res3    : 6;
#endif
    unsigned char source[2];
  unsigned char pvoltag[36];
    unsigned char res4[42];
} DataTransferElementDescriptor_T;

/* ======================================================= */
/* SCSIInquiry_T */
/* ======================================================= */
typedef struct
{
#ifdef LITTLE_ENDIAN_BITFIELDS
    PackedBit     type : 5;
    PackedBit     qualifier : 3;

    PackedBit     type_modifier : 7;
    PackedBit     removable : 1;

    PackedBit     ansi_version : 3;
    PackedBit     ecma_version : 3;
    PackedBit     iso_version : 2;

    PackedBit     data_format : 4;
    PackedBit     res3_54 : 2;
    PackedBit     termiop : 1;
    PackedBit     aenc : 1;
#else
    PackedBit     qualifier : 3;
    PackedBit     type : 5;
  
    PackedBit     removable : 1;
    PackedBit     type_modifier : 7;
  
    PackedBit     iso_version : 2;
    PackedBit     ecma_version : 3;
    PackedBit     ansi_version : 3;
  
    PackedBit     aenc : 1;
    PackedBit     termiop : 1;
    PackedBit     res3_54 : 2;
    PackedBit     data_format : 4;
#endif
  
    unsigned char add_len;
  
    unsigned char  res2;
    unsigned char res3;
  
#ifdef LITTLE_ENDIAN_BITFIELDS
    PackedBit     softreset : 1;
    PackedBit     cmdque : 1;
    PackedBit     res7_2 : 1;
    PackedBit     linked  : 1;
    PackedBit     sync : 1;
    PackedBit     wbus16 : 1;
    PackedBit     wbus32 : 1;
    PackedBit     reladr : 1;
#else
    PackedBit     reladr : 1;
    PackedBit     wbus32 : 1;
    PackedBit     wbus16 : 1;
    PackedBit     sync : 1;
    PackedBit     linked  : 1;
    PackedBit     res7_2 : 1;
    PackedBit     cmdque : 1;
    PackedBit     softreset : 1;
#endif
    char vendor_info[8];
    char prod_ident[16];
    char prod_version[4];
    char vendor_specific[20];
} SCSIInquiry_T;

/* ======================================================= */
/* ModeSenseHeader_T */
/* ======================================================= */
typedef struct
{
    unsigned char DataLength;
    unsigned char MediumType;
#ifdef LITTLE_ENDIAN_BITFIELDS
    PackedBit Speed:4;
    PackedBit BufferedMode:3;
    PackedBit WP:1;
#else
    PackedBit WP:1;
    PackedBit BufferedMode:3;
    PackedBit Speed:4;
#endif
    unsigned char BlockDescLength;
} ModeSenseHeader_T;
/* ======================================================= */
/* ModeBlockDescriptor_T */
/* ======================================================= */
typedef struct 
{
    unsigned char DensityCode;
    unsigned char NumberOfBlocks[3];
    unsigned char Reserved;
    unsigned char BlockLength[3];
} ModeBlockDescriptor_T;
/* ======================================================= */
/* LogSenseHeader_T */
/* ======================================================= */
typedef struct 
{
#ifdef LITTLE_ENDIAN_BITFIELDS
    PackedBit PageCode:6;
    PackedBit Reserved:2;
#else
    PackedBit Reserved:2;
    PackedBit PageCode:6;
#endif
    unsigned char Reserved1;
    unsigned char PageLength[2];
} LogSenseHeader_T ;
/* ======================================================= */
/* LogParameters_T */
/* ======================================================= */
typedef struct
{
    unsigned char ParameterCode[2];
#ifdef LITTLE_ENDIAN_BITFIELDS
    PackedBit LP:1;
    PackedBit RSCD:1;
    PackedBit TMC:1;
    PackedBit ETC:1;
    PackedBit TSD:1;
    PackedBit DS:1;
    PackedBit DU:1;
#else
    PackedBit DU:1;
    PackedBit DS:1;
    PackedBit TSD:1;
    PackedBit ETC:1;
    PackedBit TMC:1;
    PackedBit RSCD:1;
    PackedBit LP:1;
#endif
    char ParameterLength;
} LogParameter_T;
/*
 * Pages returned by the MODE_SENSE command
 */
typedef struct {
    unsigned char SenseDataLength;
    char res[3];
} ParameterListHeader_T;
/* ======================================================= */
/* ReadWriteErrorRecoveryPage_T */
/* ======================================================= */
typedef struct 
{
#ifdef LITTLE_ENDIAN_BITFIELDS
    PackedBit PageCode : 6;
    PackedBit res      : 1;
    PackedBit PS       : 1;
#else
    PackedBit PS       : 1;
    PackedBit res      : 1;
    PackedBit PageCode : 6;
#endif
    unsigned char ParameterListLength;
#ifdef LITTLE_ENDIAN_BITFIELDS
    PackedBit dcr  :1;  /* Disable ECC Correction */
    PackedBit dte  :1;  /* Disable Transfer on Error */
    PackedBit per  :1;  /* Enable Post  Error reporting */
    PackedBit eer  :1;  /* Enable early recovery */
    PackedBit res1 :1;
    PackedBit tb   :1;  /* Transfer block (when not fully recovered) */
    PackedBit res2 :1;
    PackedBit res3 :1;
#else
    PackedBit res3 :1;
    PackedBit res2 :1;
    PackedBit tb   :1;
    PackedBit res1 :1;
    PackedBit eer  :1;
    PackedBit per  :1;
    PackedBit dte  :1;
    PackedBit dcr  :1;
#endif
    unsigned char ReadRetryCount;
    unsigned char res4[4];
    unsigned char WriteRetryCount;
    unsigned char res5[3];
} ReadWriteErrorRecoveryPage_T; 
/* ======================================================= */
/* EDisconnectReconnectPage_T */
/* ======================================================= */
typedef struct 
{
#ifdef LITTLE_ENDIAN_BITFIELDS
    PackedBit PageCode : 6;
    PackedBit RSVD     : 1;
    PackedBit PS       : 1;
#else
    PackedBit PS       : 1;
    PackedBit RSVD     : 1;
    PackedBit PageCode : 6;
#endif

    unsigned char BufferFullRatio;
    unsigned char BufferEmptyRatio;
    unsigned char BusInactivityLimit[2];
    unsigned char DisconnectTimeLimit[2];
    unsigned char ConnectTimeLimit[2];
    unsigned char MaximumBurstSize[2];

#ifdef LITTLE_ENDIAN_BITFIELDS
    PackedBit DTDC :2;
    PackedBit res  :6;
#else
    PackedBit res  :6;