/*static char *SCCSID = "@(#)scsi.h	6.2 92/03/03";*/
/* Copyright (C) 1992 IBM Corporation */

/* Typedefs to resolve forward references */

typedef struct _SCSIReqSenseData    SCSI_REQSENSE_DATA;
typedef struct _SCSIReqSenseData    FAR *PSCSI_REQSENSE_DATA;
typedef struct _SCSIReqSenseData    *NPSCSI_REQSENSE_DATA;

typedef struct _SCSICDB6      SCSICDB6;
typedef struct _SCSICDB6      FAR *PSCSICDB6;
typedef struct _SCSICDB6      *NPSCSICDB6;

typedef struct _SCSICDB10     SCSICDB10;
typedef struct _SCSICDB10     FAR *PSCSICDB10;
typedef struct _SCSICDB10     *NPSCSICDB10;

typedef struct _SCSICDB12     SCSICDB12;
typedef struct _SCSICDB12     FAR *PSCSICDB12;
typedef struct _SCSICDB12     *NPSCSICDB12;

typedef struct  _SCSIStatusBlock SCSI_STATUS_BLOCK;
typedef struct  _SCSIStatusBlock FAR *PSCSI_STATUS_BLOCK;
typedef struct  _SCSIStatusBlock *NPSCSI_STATUS_BLOCK;

typedef struct  _SCSIInqData  SCSI_INQDATA;
typedef struct  _SCSIInqData  FAR *PSCSI_INQDATA;
typedef struct  _SCSIInqData  *NPSCSI_INQDATA;

/****************************************************************************/
/*    General SCSI definitions                                              */
/****************************************************************************/


/***************************/
/*  SCSI Operation Codes   */
/***************************/

#define SCSI_TEST_UNIT_READY    0x00    /* Test Unit Ready                  */
#define SCSI_REZERO_UNIT        0x01    /* CD-ROM rezero unit               */
#define SCSI_REWIND             0x01    /* Tape Rewind                      */
#define SCSI_REQUEST_SENSE      0x03    /* Request Sense Command            */
#define SCSI_READ_BLK_LIMITS    0x05    /* Read Block Limits                */
#define SCSI_REQ_AUX_SENSE      0x06    /* Request Auxiliary Sense          */
#define SCSI_REASSIGN_BLOCKS    0x07    /* Reassign Blocks                  */
#define SCSI_READ_6             0x08    /* SCSI 6 byte Read                 */
#define SCSI_WRITE_6            0x0A    /* SCSI 6 byte Write                */
#define SCSI_WRITE_FILEMARKS    0x10    /* Tape Write Filemarks             */
#define SCSI_SPACE              0x11    /* Tape Space                       */
#define SCSI_INQUIRY            0x12    /* Inquiry command                  */
#define SCSI_RECOVER_BUFFER     0x14    /* Tape Recover Buffer              */
#define SCSI_MODE_SELECT        0x15    /* Mode Select                      */
#define SCSI_RESERVE_UNIT       0x16    /* Tape Reserve Unit                */
#define SCSI_RELEASE_UNIT       0x17    /* Tape Release Unit                */
#define SCSI_ERASE              0x19    /* Tape Erase                       */
#define SCSI_MODE_SENSE         0x1A    /* Mode Sense                       */
#define SCSI_START_STOP_UNIT    0x1B    /* Start/Stop Unit                  */
#define SCSI_LOAD_UNLOAD        0x1B    /* Tape Load/Unload Media           */
#define SCSI_LOCK_UNLOCK        0x1E    /* Lock/Unlock drive door           */
#define SCSI_READ_CAPACITY      0x25    /* Read Capacity                    */
#define SCSI_READ_10            0x28    /* SCSI 10 byte Read                */
#define SCSI_WRITE_10           0x2A    /* SCSI 10 byte Write               */
#define SCSI_SEEK_10            0x2B    /* SCSI 10 byte Seek                */
#define SCSI_LOCATE             0x2B    /* Tape Locate                      */
#define SCSI_WRITE_VERIFY_10    0x2E    /* SCSI 10 byte Write w/Verify      */
#define SCSI_VERIFY_10          0x2F    /* SCSI 10 byte Verify              */
#define SCSI_READ_SUB_CHAN      0x42    /* Read Sub-Channel (CD-ROM)        */
#define SCSI_READ_TOC           0x43    /* Read Table of Contents           */
#define SCSI_PLAY_MSF           0x47    /* Play Audio - MSF format          */
#define SCSI_PAUSE_RESUME       0x4B    /* Pause/Resume Audio Play          */



/*******************************************/
/*  SCSI Command Descriptor Block          */
/*******************************************/



typedef struct _SCSICDB6 { /* CDB6 */ /* 6 byte Command Descriptor Block*/

        UCHAR   Opcode;             /* CDB Operation Code           */
        UCHAR   Lun_MsbLBA;         /* SCSI LUN & 5 MSB bits of LBA */
        UCHAR   MidLBA;             /* SCSI MID byte of LBA         */
        UCHAR   LsbLBA;             /* SCSI LBA byte of LBA         */
        UCHAR   XferLen;            /* SCSI Xfer length, Alloc length */
        UCHAR   Control;            /* Control byte                 */

} SCSICDB6,FAR *PSCSICDB6, *NPSCSICDB6;



typedef struct _SCSICDB10 { /* CDB10 */ /* 10 byte Command Descriptor Block*/

        UCHAR   Opcode;            /* CDB Operation Code           */
        UCHAR   Lun;               /* SCSI                         */
        UCHAR   LBA[4];            /* SCSI LBA MSB->LSB            */
        UCHAR   Res;               /* reserved byte                */
        UCHAR   XferLen[2];        /* SCSI Xfer length (MSB first) */
        UCHAR   Control;           /* Control byte                 */

} SCSICDB10,FAR *PSCSICDB10, *NPSCSICDB10;


typedef struct _SCSICDB12 { /* CDB12 */ /* 12 byte Command Descriptor Block*/


        UCHAR   Opcode;            /* CDB Operation Code           */
        UCHAR   Lun;               /* SCSI                         */
        UCHAR   LBA[4];            /* SCSI LBA MSB->LSB            */
        UCHAR   XferLen[4];        /* SCSI Xfer length (MSB first) */
        UCHAR   Res;               /* reserved byte                */
        UCHAR   Control;           /* Control byte                 */

} SCSICDB12, FAR *PSCSICDB12, *NPSCSICDB12;


/******************************/
/* SCSI Status byte codes     */
/******************************/


#define SCSI_STAT_GOOD          0x00      /* Good status                  */
#define SCSI_STAT_CHECKCOND     0x02      /* SCSI Check Condition         */
#define SCSI_STAT_CONDMET       0x04      /* Condition Met                */
#define SCSI_STAT_BUSY          0x08      /* Target busy status           */
#define SCSI_STAT_INTER         0x10      /* Intermediate status          */
#define SCSI_STAT_INTERCONDMET  0x14      /* Intermediate condition met   */
#define SCSI_STAT_RESCONFLICT   0x18      /* Reservation conflict         */
#define SCSI_STAT_CMDTERM       0x22      /* Command Terminated           */
#define SCSI_STAT_QUEUEFULL     0x28      /* Queue Full                   */



/******************************/
/*  Request Sense Data format */
/******************************/

typedef struct  _SCSIReqSenseData { /* REQSEN */


        UCHAR   ErrCode_Valid;       /* Error Code & Valid bit       */
        UCHAR   SegNum;              /* Segment Number               */
        UCHAR   SenseKey;            /* Sense Key,ILI,EOM, FM        */
        UCHAR   INFO[4];             /* information field            */
        UCHAR   AddLen;              /* additional length            */
        UCHAR   CmdInfo[4];          /* command-specific info        */
        UCHAR   AddSenseCode;        /* additional sense code        */
        UCHAR   AddSenseCodeQual;    /* additional sense code qualifier */
        UCHAR   FieldRepUnitCode;    /* field replaceable unit code  */
        UCHAR   KeySpecific[3];      /* Sense-key specific           */

} SCSI_REQSENSE_DATA, FAR *PSCSI_REQSENSE_DATA, *NPSCSI_REQSENSE_DATA;



/**********************************/
/*  Sense Data bit masks          */
/**********************************/


/* Byte 0 of sense data */


#define SCSI_ERRCODE_MASK     0x7F            /* Error Code                   */
#define SCSI_VALID_MASK       0x80            /* Information field valid bit  */



/* Byte 2 of sense data */


#define SCSI_SENSEKEY_MASK     0xF             /* Sense key                    */
#define SCSI_INCORRECT_LEN     0x20            /* Incorrect lenght indicator   */
#define SCSI_SENSE_ENDOFMEDIUM 0x40            /* End-of-medium bit            */
#define SCSI_SENSE_FM          0x80            /* filemark bit                 */



/*******************************/
/*  Sense Key definitions      */
/*******************************/


#define SCSI_SK_NOSENSE          0x0     /* No sense                     */
#define SCSI_SK_RECERR           0x1     /* Recovered Error              */
#define SCSI_SK_NOTRDY           0x2     /* Not Ready Error              */
#define SCSI_SK_MEDIUMERR        0x3     /* Medium Error                 */
#define SCSI_SK_HARDWAREERR      0x4     /* HardWare Error               */
#define SCSI_SK_ILLEGALREQ       0x5     /* Illegal Request              */
#define SCSI_SK_UNITATTN         0x6     /* Unit Attention               */
#define SCSI_SK_DATAPROTECT      0x7     /* Data Protect Error           */
#define SCSI_SK_BLANKCHK         0x8     /* Blank Check                  */
#define SCSI_SK_COPYABORT        0x0A    /* Copy Aborted                 */
#define SCSI_SK_ABORTEDCMD       0x0B    /* Aborted Command              */
#define SCSI_SK_EQUAL            0x0C    /* Equal Comparison satisfied   */
#define SCSI_SK_VOLOVERFLOW      0x0D    /* Volume Overflow              */
#define SCSI_SK_MISCOMPARE       0x0E    /* Miscompare                   */


/************************************/
/* SCSI IORB StatusBlock definition */
/************************************/

#define SCSI_DIAGINFO_LEN        8

typedef struct  _SCSIStatusBlock {  /* STATBLK */

        USHORT  Flags;                   /* Status block flags           */
        USHORT  AdapterErrorCode;        /* Translated Adapter Error     */
        UCHAR   TargetStatus;            /* SCSI status codes            */
        ULONG   ResidualLength;          /* Residual Length              */
        UCHAR   AdapterDiagInfo[SCSI_DIAGINFO_LEN]; /* Raw adapter status*/
        USHORT  ReqSenseLen;             /* amount of RS data requested  */
        PSCSI_REQSENSE_DATA  SenseData;  /* pointer to Req Sense Data    */

} SCSI_STATUS_BLOCK, FAR *PSCSI_STATUS_BLOCK, *NPSCSI_STATUS_BLOCK;

/* Status Block flags definitions */

#define STATUS_SENSEDATA_VALID  0x0001   /* Sense Data Valid             */
#define STATUS_RESIDUAL_VALID   0x0002   /* Residual Byte Count Valid    */
#define STATUS_DIAGINFO_VALID   0x0004   /* Diagnostic Information Valid */

/*************************/
/*  Inquiry Data format  */
/*************************/

typedef struct  _SCSIInqData { /* INQ */

        UCHAR    DevType;               /* Periph Qualifier & Periph Dev Type*/
        UCHAR    RMB_TypeMod;           /* rem media bit & Dev Type Modifier */
        UCHAR    Vers;                  /* ISO, ECMA, & ANSI versions        */
        UCHAR    RDF;                   /* AEN, TRMIOP, & response data format*/
        UCHAR    AddLen;                /* length of additional data         */
        UCHAR    Res1;                  /* reserved                          */
        UCHAR    Res2;                  /* reserved                          */
        UCHAR    Flags;                 /* RelADr,Wbus32,Wbus16,Sync,etc.    */
        UCHAR    VendorID[8];           /* Vendor Identification             */
        UCHAR    ProductID[16];         /* Product Identification            */
        UCHAR    ProductRev[4];         /* Product Revision                  */


} SCSI_INQDATA, FAR *PSCSI_INQDATA, *NPSCSI_INQDATA;


/*  Inquiry byte 0 masks */


#define SCSI_DEVTYPE        0x1F      /* Peripheral Device Type             */
#define SCSI_PERIPHQUAL     0xE0      /* Peripheral Qualifier               */


/*  Inquiry byte 1 mask */

#define SCSI_REMOVABLE_MEDIA  0x80    /* Removable Media bit (1=removable)  */


/*  Peripheral Device Type definitions */


#define SCSI_DASD                0x00      /* Direct-access Device         */
#define SCSI_SEQACESS            0x01      /* Sequential-access device     */
#define SCSI_PRINTER             0x02      /* Printer device               */
#define SCSI_PROCESSOR           0x03      /* Processor device             */
#define SCSI_WRITEONCE           0x04      /* Write-once device            */
#define SCSI_CDROM               0x05      /* CD-ROM device                */
#define SCSI_SCANNER             0x06      /* Scanner device               */
#define SCSI_OPTICAL             0x07      /* Optical memory device        */
#define SCSI_MEDCHGR             0x08      /* Medium changer device        */
#define SCSI_COMM                0x09      /* Communications device        */
#define SCSI_NODEV               0x1F      /* Unknown or no device type    */



/**********************************************/
/* Inquiry flag definitions (Inq data byte 7) */
/**********************************************/

#define SCSI_INQ_RELADR       0x80;   /* device supports relative addressing*/
#define SCSI_INQ_WBUS32       0x40;   /* device supports 32 bit data xfers  */
#define SCSI_INQ_WBUS16       0x20;   /* device supports 16 bit data xfers  */
#define SCSI_INQ_SYNC         0x10;   /* device supports synchronous xfer   */
#define SCSI_INQ_LINKED       0x08;   /* device supports linked commands    */
#define SCSI_INQ_CMDQUEUE     0x02;   /* device supports command queueing   */
#define SCSI_INQ_SFTRE        0x01;   /* device supports soft resets */

