wdlocal.inc
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操作系统开发
开发平台:
Visual C++
- ;******************************************************************************
- ;
- ; (C) Copyright MICROSOFT Corp., 1990
- ;
- ; Title: WDLOCAL.INC -- Equates and structures for WDCTRL.386
- ;
- ; Version: 1.00
- ;
- ; Date: 27-Sep-1990
- ;
- ; Author: RAL
- ;
- ;------------------------------------------------------------------------------
- ;
- ; Change log:
- ;
- ; DATE REV DESCRIPTION
- ; ----------- --- -----------------------------------------------------------
- ; 27-Sep-1990 RAL
- ;
- ;==============================================================================
- ;
- ; Private data structure for Block Device Descriptor
- ;
- WDCtrl_Private_BDD STRUC
- db SIZE BlockDev_Device_Descriptor dup (?)
- BDP_Base_IO_Port dw ?
- BDP_Status_Port dw ?
- BDP_Write_Precom db ?
- BDP_Drive_Control db ?
- WDCtrl_Private_BDD ENDS
- ;******************************************************************************
- ; E Q U A T E S
- ;******************************************************************************
- WDIO_Def_Base_Port EQU 1F0h
- WDIO_Data_Off EQU 0
- WDIO_Error_Off EQU 1
- WDIO_Precomp_Off EQU 1
- WDIO_Sector_Cnt_Off EQU 2
- WDIO_Sector_Num_Off EQU 3
- WDIO_Cly_Low_Off EQU 4
- WDIO_Cly_High_Off EQU 5
- WDIO_Drive_Sel_Off EQU 6
- WDIO_Status_Off EQU 7
- WDIO_Command_Off EQU 7
- WDIO_Alt_Stat_Off EQU 3F6h-WDIO_Def_Base_Port
- WDIO_Drive_Control_Off EQU 3F6h-WDIO_Def_Base_Port
- WDIO_Drive_Address_Off EQU 3F7h-WDIO_Def_Base_Port
- WDStat_Error EQU 00000001b
- WDStat_Index EQU 00000010b
- WDStat_ECC_Corrected EQU 00000100b
- WDStat_DRQ EQU 00001000b
- WDStat_Seek_Complete EQU 00010000b
- WDStat_Write_Fault EQU 00100000b
- WDStat_Ready EQU 01000000b
- WDStat_Busy EQU 10000000b
- ;
- ; Largest legal sector count for one transfer
- ;
- WD_Max_Sector_Xfer EQU 7Fh
- ;
- ; Version numbers
- ;
- WD_Major_Ver EQU 03h
- WD_Minor_Ver EQU 0Ah
- ;
- ; Reference data flags
- ;
- RF_Drive_80h_Ours EQU 00000001b
- RF_Drive_80h_Ours_Bit EQU 0
- RF_Drive_81h_Ours EQU 00000010b
- RF_Drive_81h_Ours_Bit EQU 1
- RF_Use_Alt_Stat_80 EQU 00000100b
- RF_Use_Alt_Stat_80_Bit EQU 2
- RF_Use_Alt_Stat_81 EQU 00001000b
- RF_Use_Alt_Stat_81_Bit EQU 3
- ;
- ; Time-out values (in Ms)
- ;
- WD_Write_Ready_Timeout EQU 500
- WD_Busy_Timeout EQU 500
- ;
- ; Fatal controller error numbers
- ;
- FATAL_TIME_OUT EQU 1
- FATAL_BAD_STATUS EQU 2
- FATAL_DATA_BAD_COMPARE EQU 3
- ;
- ; Maximum number of retries for an operation before it is failed
- ;
- WD_Max_Retries EQU 3