v4.0/src/MEMM/MEMM/DRIVER.STR

   1
   2
   3 ;******************************************************************************
   4 ;
   5 ;   (C) Copyright MICROSOFT Corp. 1986
   6 ;
   7 ;   Title:    MEMM - MICROSOFT Expanded Memory Manager 386
   8 ;
   9 ;   Module:   DRIVER.STR - MS-DOS Device Driver structures
  10 ;
  11 ;   Version:  0.02
  12 ;
  13 ;   Date:     June 25,1986
  14 ;
  15 ;   Author:
  16 ;
  17 ;******************************************************************************
  18 ;
  19 ;   Change log:
  20 ;
  21 ;     DATE    REVISION                  DESCRIPTION
  22 ;   --------  --------  -------------------------------------------------------
  23 ;   06/25/86  Original
  24 ;   06/28/86  0.02      Name change from MEMM386 to MEMM
  25 ;
  26 ;******************************************************************************
  27 ifndef INC_LIST
  28 .xlist
  29 endif
  30
  31 ;
  32 ;    Device driver header structure
  33 ;
  34 DEVICE_HEADER           STRUC
  35 DEV_PTR                 DD              0
  36 DEV_ATTR                DW              0
  37 STRAT_PTR               DW              0
  38 INT_PTR                 DW              0
  39 DEV_NAME                DB              "        "
  40 DEVICE_HEADER           ENDS
  41 DEV_OFF                 EQU             WORD PTR DEV_PTR
  42 DEV_SEG                 EQU             WORD PTR DEV_PTR+2
  43 ;
  44 ;    Device driver request header structure
  45 ;
  46 REQUEST_HEADER          STRUC
  47 HDR_LEN                 DB              0
  48 UNIT_CODE               DB              0
  49 COMMAND_CODE            DB              0
  50 STATUS_WORD             DW              0
  51 RES_AREA                DB              0,0,0,0,0,0,0,0
  52 OP_DATA                 DB              0
  53 REQUEST_HEADER          ENDS
  54 ;
  55 ;    Initialize command request header structure
  56 ;
  57 INIT_HEADER             STRUC
  58                         DB              13 DUP (?)
  59 NUM_UNITS               DB              0
  60 BRK_ADDR                DD              0
  61 ARG_PTR                 DD              0
  62 DRV_NUM                 DB              0
  63 INIT_HEADER             ENDS
  64 BRK_OFF                 EQU             WORD PTR BRK_ADDR
  65 BRK_SEG                 EQU             WORD PTR BRK_ADDR+2
  66 ARG_OFF                 EQU             WORD PTR ARG_PTR
  67 ARG_SEG                 EQU             WORD PTR ARG_PTR+2
  68 ;
  69 ;    Media check request header structure
  70 ;
  71 MEDIA_HEADER            STRUC
  72                         DB              13 DUP (?)
  73 MEDIA_BYTE              DB              0
  74 RET_BYTE                DB              0
  75 VOL_PTR                 DD              0
  76 MEDIA_HEADER            ENDS
  77 VOL_OFF                 EQU             WORD PTR VOL_PTR
  78 VOL_SEG                 EQU             WORD PTR VOL_PTR+2
  79 ;
  80 ;    Build BPB request header structure
  81 ;
  82 BPB_HEADER              STRUC
  83                         DB              13 DUP (?)
  84 BPB_DESC                DB              0
  85 BPB_TRANS               DD              0
  86 TABLE_PTR               DD              0
  87 BPB_HEADER              ENDS
  88 BPB_OFF                 EQU             WORD PTR BPB_TRANS
  89 BPB_SEG                 EQU             WORD PTR BPB_TRANS+2
  90 TABLE_OFF               EQU             WORD PTR TABLE_PTR
  91 TABLE_SEG               EQU             WORD PTR TABLE_PTR+2
  92 ;
  93 ;    Input/output request header structure
  94 ;
  95 IO_HEADER               STRUC
  96                         DB              13 DUP (?)
  97 IO_DESC                 DB              0
  98 IO_TRANS                DD              0
  99 IO_COUNT                DW              0
 100 IO_START                DW              0
 101 VOL_ID                  DD              0
 102 IO_HEADER               ENDS
 103 IO_OFF                  EQU             WORD PTR IO_TRANS
 104 IO_SEG                  EQU             WORD PTR IO_TRANS+2
 105 ID_OFF                  EQU             WORD PTR VOL_ID
 106 ID_SEG                  EQU             WORD PTR VOL_ID+2
 107 ;
 108 ;   Device driver BIOS Parameter Block (BPB) structure
 109 ;
 110 BPB_BLOCK               STRUC
 111 BYTES_PER_SECTOR        DW              0
 112 SECTORS_PER_ALLOC       DB              0
 113 RES_SECTORS             DW              0
 114 NUM_FATS                DB              0
 115 ROOT_DIR_ENTRIES        DW              0
 116 NUMBER_OF_SECTORS       DW              0
 117 MEDIA_DESC              DB              0
 118 SECTORS_PER_FAT         DW              0
 119 BPB_BLOCK               ENDS
 120 ;
 121 ;   Device driver BIOS Parameter option block structure
 122 ;
 123 BPB_OPTION              STRUC
 124 SECTORS_PER_TRACK       DW              0
 125 NUMBER_OF_HEADS         DW              0
 126 HIDDEN_SECTORS          DW              0
 127 BPB_OPTION              ENDS
 128
 129 .list   ; end of DRIVER.STR