/* Copyright (C) 1991, 1992 by Always Technology Corporation.
   This module contains information proprietary to
   Always Technology Corporation, and should be treated as confidential.
   */

#ifndef __DOSASPI_H__
#define __DOSASPI_H__

#pragma pack (1)                                          // MSC form of pack
//#pragma options -a-                                     // Borland packed structures


struct ASPISRB {

  unsigned char Command;
  volatile unsigned char Status;
  unsigned char HANumber;
  unsigned char Flags;
  unsigned char Reserved[4];

  };
typedef struct ASPISRB FAR *REQ_PTR;


struct ASPIHAINQUIRY {

  unsigned char Command;
  volatile unsigned char Status;
  unsigned char HANumber;
  unsigned char Flags;
  unsigned char Reserved[4];
  unsigned char AdapterCount;
  unsigned char ADSCSIID;
  char MGRID[16];
  char AdapterID[16];
  char AdapterParms[16];

  };
typedef struct ASPIHAINQUIRY FAR *IO_HA_INQ_PTR;


struct ASPIDEVTYPE {

  unsigned char Command;
  volatile unsigned char Status;
  unsigned char HANumber;
  unsigned char Flags;
  unsigned char Reserved[4];
  unsigned char TargetID;
  unsigned char TargetLUN;
  unsigned char Type;

  };
typedef struct ASPIDEVTYPE FAR *IO_DEV_TYPE_PTR;


struct SENSE_RESP {

  unsigned ErrorCode:7;
  unsigned ADValid:1;
  unsigned char SegNum;
  unsigned Key:4;
  unsigned Reserved:1;
  unsigned ILI:1;
  unsigned EOM:1;
  unsigned FileMark:1;
  long Info;
  unsigned char AddlLen;
  long CmdInfo;
  unsigned char AddlCode;
  unsigned char AddlQual;

};


union SCSI_CDB {

  unsigned char SCSI6[6];
  unsigned char SCSI10[10];
  unsigned char SCSI12[12];
  unsigned char CDB[12];

};

typedef struct SG_LIST_struct FAR *SG_LIST_Ptr;
typedef struct SG_LIST_struct SG_LIST;

struct SG_LIST_struct {

  void FAR *Buffer;
  unsigned long Count;

};

union MEM_HANDLE {

  void FAR *addr;
  SG_LIST_Ptr sg_list;

};

#if !defined(KERNEL)
union ASPIRESERVED {
  char ASPI[34];
};
#endif

typedef struct ASPIIOREQ IO_REQ;
typedef struct ASPIIOREQ FAR *IO_REQ_PTR;         /* Execute I/O Request */
typedef struct ASPIIOREQ FAR *IO_RST_PTR;         /* Reset target request */

struct ASPIIOREQ {

  unsigned char		  Command;
  volatile unsigned char  Status;
  unsigned char 	  HANumber;
  unsigned char 	  Flags;
  unsigned short 	  SGListLength;
  unsigned short	  Reserved;
  unsigned char		  TargetID;
  unsigned char		  TargetLUN;
  unsigned long		  DataCount;
  unsigned char		  SenseCount;
  void far		 *DataPtr;                                    // Data pointer or mem handle pointer
//  IO_REQ_PTR		  NextReq;
  void far		 *NextReq;
  unsigned char		  CDBLen;
  unsigned char		  HAStatus;
  unsigned char volatile  TStatus;
  void far		 *post_func;
//  unsigned long	  Post;
  union ASPIRESERVED	  Misc;
  union SCSI_CDB	  CDB;
  unsigned char		  SenseData[32];

};

struct ASPIABORT {

  unsigned char Command;
  unsigned char Status;
  unsigned char HANumber;
  unsigned char Flags;
  unsigned char Reserved[4];
  IO_REQ_PTR ReqPtr;

};
typedef struct ASPIABORT FAR *IO_ABORT_PTR;


struct ASPIDISKINFO {

  unsigned char Command;
  unsigned char Status;
  unsigned char HANumber;
  unsigned char Flags;
  unsigned char Reserved[4];
  unsigned char TargetID;
  unsigned char TargetLUN;
  unsigned char DriveFlags;
  unsigned char INT13Drive;
  unsigned char Heads;                               /* Logical heads per cylinder */
  unsigned char Sectors;                             /* Logical sectors per track */
  unsigned char Reserved2[10];

};
typedef struct ASPIDISKINFO FAR *IO_DISK_PTR;


/* Codes for Request.Command */
#define ASPI_ADAPTER_INQUIRY 0x00                 /* Ask about ASPI mgr and adapter */
#define ASPI_DEVICE_TYPE 0x01                     /* Inquiry on drive */
#define ASPI_EXEC_COMMAND 0x02                    /* Perform SCSI command */
#define ASPI_ABORT 0x03                           /* Abort request */
#define ASPI_RESET_TARGET 0x04                    /* Reset specified target */
#define ASPI_SET_PARMS 0x05                       /* Set ASPI parameters */
#define ASPI_DISK_INFO 0x06                       /* Get BIOS Int 13 info for drive */

/* Flag bits for Req.Flags: */
#define RF_USESG 0x20
#define RF_DIRECTION 0x18
#define RF_LINKED 0x02
#define RF_POST 0x01
#define RF_DATAAUTO 0x00
#define RF_DATAIN 0x08
#define RF_DATAOUT 0x10
#define RF_NODATA 0x18

/* Status codes for Request.Status */
#define ASPI_REQS_REQINPROGRESS 0x0
#define ASPI_REQS_COMPLETEOK 0x1
#define ASPI_REQS_NOERROR 0x1
#define ASPI_REQS_REQABORTED 0x2
#define ASPI_REQS_ERROR 0x4
#define ASPI_REQS_BADREQ 0x80
#define ASPI_REQS_BADHANUM 0x81
#define ASPI_REQS_NODEV 0x82

/* Status codes for ADStatus */
#define ASPI_HAS_NOERROR 0x0
#define ASPI_HAS_SELTIMEOUT 0x11
#define ASPI_HAS_OVERRUN 0x12
#define ASPI_HAS_BUSFREE 0x13
#define ASPI_HAS_BADPHASE 0x14

/* Status codes for TStatus */
#define ASPI_TS_NOERROR 0x0
#define ASPI_TS_CHECKCOND 0x2
#define ASPI_TS_BUSY 0x8
#define ASPI_TS_RESERVED 0x18

#pragma pack ()                                         // MSC default packing
//#pragma options -a.                                     // Borland word packing

#endif /* __DOSASPI_H__ */