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-rw-r--r--Game/Code/lib/zlportio/zlportio.pas285
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diff --git a/Game/Code/lib/zlportio/zlportio.pas b/Game/Code/lib/zlportio/zlportio.pas
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--- a/Game/Code/lib/zlportio/zlportio.pas
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-{ -----------------------------------------------------------------------------}
-{ Copyright 2000-2001, Zloba Alexander. All Rights Reserved. }
-{ This unit can be freely used and distributed in commercial and private }
-{ environments, provided this notice is not modified in any way. }
-{ -----------------------------------------------------------------------------}
-{ Feel free to contact me if you have any questions, comments or suggestions at}
-{ zal@specosoft.com (Zloba Alexander) }
-{ You can always find the latest version of this unit at: }
-{ http://www.specosoft.com }
-
-{ -----------------------------------------------------------------------------}
-{ Date last modified: 08/10/2001 }
-{ -----------------------------------------------------------------------------}
-{ ZLPortIO driver interface unit v1.20 }
-{ -----------------------------------------------------------------------------}
-{ Description: }
-{ This unit allow your application direct access port input and output under }
-{ all versions of Microsoft Windows® }
-{ Depends: }
-{ zlportio.sys ddkint.pas }
-{ You must distribute zlportio.sys with your application }
-{ Procedures and functions: }
-{ procedure zlioportread( const Port,DataType:dword ):dword; }
-{ procedure zlioportwrite( const Port,DataType,Data:dword ); }
-{ }
-{ function portreadb( const Port:dword ):byte; }
-{ function portreadw( const Port:dword ):word; }
-{ function portreadl( const Port:dword ):dword; }
-{ }
-{ procedure portwriteb( const Port:Dword;const Data:byte ); }
-{ procedure portwritew( const Port:dword;const Data:word ); }
-{ procedure portwritel( const Port,Data:dword ); }
-{ }
-{ Examples: }
-{ // get data bits from LPT port }
-{ databits := portreadb( $378 ) }
-{ // set data bits from LPT port }
-{ portwriteb( $378, databits ) }
-{ // The second parameter determine the databus length for operation }
-{ -----------------------------------------------------------------------------}
-{ Revision History: }
-{ 1.00: + First public release }
-{ 1.10: + Added new functions (portreadX,portwriteX) for convenience of usage }
-{ 1.20: + Added new function (zliosetiopm) for enabling direct access to ports}
-{ 1.30: + added compiler directives for correct compilation }
-{ 1.40: + added opportunity to run multiply instances client to driver }
-{ 1.50: - fixed bug with work under win98 }
-{------------------------------------------------------------------------------}
-
-{$A-,H-}
-unit zlportio;
-
-interface
-
-uses windows,
- sysutils,
- ddkint;
-
-Const
- ZLIO_BYTE = 0;
- ZLIO_WORD = 1;
- ZLIO_DWORD = 2;
-
-var
-
-// if TRUE then driver was started
-// in other case something wrong
-// We start driver in initialization section of unit.
-
- ZlIOStarted:boolean = false;
-
-// if TRUE then we can use asm IN,OUT under NT/2000
-// see zliosetiopm for more details
- ZlIODirect:boolean = false;
-
-// handle to opened driver
-
- HZLIO:THandle;
-
-
-function portreadb( const Port:dword ):byte;
-function portreadw( const Port:dword ):word;
-function portreadl( const Port:dword ):dword;
-
-procedure portwriteb( const Port:Dword;const Data:byte );
-procedure portwritew( const Port:dword;const Data:word );
-procedure portwritel( const Port,Data:dword );
-
-
-procedure zlioportwrite( const Port,DataType,Data:dword );
-function zlioportread( const Port,DataType:dword ):dword;
-
-// if you need the best perfomance for your IO operations
-// call zliosetiopm(TRUE). This allow your application
-// to use asm command IN,OUT directly in your code.
-
-procedure zliosetiopm( const Direct:boolean );
-
-// internal
-
-function zliostart:boolean;
-procedure zliostop;
-
-
-implementation
-
-const
- ZLIODriverName='zlportio';
-
-var
- IOCTL_ZLUNI_PORT_READ:cardinal;
- IOCTL_ZLUNI_PORT_WRITE:cardinal;
- IOCTL_ZLUNI_IOPM_ON:cardinal;
- IOCTL_ZLUNI_IOPM_OFF:cardinal;
-
-type
-TzlIOData = record
- Port,DataType,Data:dword;
-end;
-
-
-procedure zlioportwrite( const Port,DataType,Data:dword );
-var resdata:TZLIOData;
- cBR:cardinal;
-begin
- if (not ZLIODirect) then begin
- resdata.Port := Port;
- resdata.Data := Data;
- resdata.DataType := DataType;
- if ZLIOStarted then
- DeviceIoControl(HZLIO,IOCTL_ZLUNI_PORT_WRITE,@resdata,sizeof(resdata),nil,0,cBR,nil );
- end
- else begin
- Case DataType of
- ZLIO_BYTE : asm mov edx,Port;mov eax,data;out dx,al; end;
- ZLIO_WORD : asm mov edx,Port;mov eax,data;out dx,ax; end;
- ZLIO_DWORD: asm mov edx,Port;mov eax,data;out dx,eax; end;
- end;
- end;
-end;
-
-function zlioportread(const Port,DataType:dword):dword;
-var resdata:TZLIOData;
- cBR:cardinal;i:dword;
-begin
- if (not ZLIODirect) then begin
- resdata.Port := Port;
- resdata.DataType := DataType;
- if ZLIOStarted then
- DeviceIoControl(HZLIO,IOCTL_ZLUNI_PORT_READ,@resdata,sizeof(resdata),@i,sizeof(dword),cBR,nil );
- end
- else begin
- Case DataType of
- ZLIO_BYTE : asm mov edx,Port;xor eax,eax;in al,dx;mov i,eax; end;
- ZLIO_WORD : asm mov edx,Port;xor eax,eax;in ax,dx;mov i,eax; end;
- ZLIO_DWORD: asm mov edx,Port;xor eax,eax;in eax,dx;mov i,eax end;
- end;
- end;
- result := i;
-end;
-
-function portreadb( const Port:dword ):byte;
-begin
- Result := zlioportread(Port,ZLIO_BYTE);
-end;
-
-function portreadw( const Port:dword ):word;
-begin
- Result := zlioportread(Port,ZLIO_WORD);
-end;
-
-function portreadl( const Port:dword ):dword;
-begin
- Result := zlioportread(Port,ZLIO_DWORD);
-end;
-
-procedure portwriteb( const Port:Dword;const Data:byte );
-begin
- zlioportwrite(Port,ZLIO_BYTE,Data);
-end;
-
-procedure portwritew( const Port:dword;const Data:word );
-begin
- zlioportwrite(Port,ZLIO_WORD,Data);
-end;
-
-procedure portwritel( const Port,Data:dword );
-begin
- zlioportwrite(Port,ZLIO_DWORD,Data);
-end;
-
-procedure zliosetiopm( const Direct:boolean );
-var cBR:cardinal;
-begin
- if Win32Platform=VER_PLATFORM_WIN32_NT then
- if ZLIOStarted then begin
- if Direct then
- DeviceIoControl(HZLIO,IOCTL_ZLUNI_IOPM_ON,nil,0,nil,0,cBR,nil )
- else
- DeviceIoControl(HZLIO,IOCTL_ZLUNI_IOPM_OFF,nil,0,nil,0,cBR,nil );
- ZLIODirect := Direct;
- end
-end;
-
-
-
-
-function zliostart;
-var dir:shortstring;
-begin
- if Win32Platform<>VER_PLATFORM_WIN32_NT then begin
- result := true;
- exit;
- end;
-// Result := false;
- zliostop;
- dir := ExtractFileDir(ParamStr(0))+'\'+ZLIODriverName+'.sys'#0;
- driverinstall(pchar(@dir[1]),ZLIODriverName+#0);
- Result := driverstart(ZLIODriverName) = 0;
-end;
-
-procedure zliostop;
-begin
- if Win32Platform<>VER_PLATFORM_WIN32_NT then
- exit;
- driverstop(ZLIODriverName);
- driverremove(ZLIODriverName);
-end;
-
-function zlioopen( var Handle:thandle):boolean;
-var cERR:integer;
- s:string;
-begin
- if Win32Platform<>VER_PLATFORM_WIN32_NT then begin
- result := true;
- exit;
- end;
- Result := false;
- Handle := THandle(-1);
- Handle := createFile('\\.\ZLPORTIO',
- GENERIC_READ or GENERIC_WRITE,
- 0,
- nil,
- OPEN_EXISTING,
- FILE_ATTRIBUTE_NORMAL,
- 0 );
- cERR := getlasterror;
- s := messagestring( cerr);
- if (cERR = ERROR_ALREADY_EXISTS)or(cERR = ERROR_SUCCESS) then Result := True;
-end;
-
-procedure zlioclose( const Handle:thandle);
-begin
- if (Win32Platform=VER_PLATFORM_WIN32_NT) then
- closehandle(Handle);
-end;
-
-
-initialization
-
-IOCTL_ZLUNI_PORT_READ := CTL_CODE(FILE_DEVICE_KRNLDRVR, 1, METHOD_BUFFERED, FILE_ANY_ACCESS);
-IOCTL_ZLUNI_PORT_WRITE := CTL_CODE(FILE_DEVICE_KRNLDRVR, 2, METHOD_BUFFERED, FILE_ANY_ACCESS);
-IOCTL_ZLUNI_IOPM_ON := CTL_CODE(FILE_DEVICE_KRNLDRVR, 3, METHOD_BUFFERED, FILE_ANY_ACCESS);
-IOCTL_ZLUNI_IOPM_OFF := CTL_CODE(FILE_DEVICE_KRNLDRVR, 4, METHOD_BUFFERED, FILE_ANY_ACCESS);
-
- if Win32Platform<>VER_PLATFORM_WIN32_NT then begin
- zliostarted := true;
- zliodirect := true;
- end
- else begin
- if not zlioopen(HZLIO) then begin
- if zliostart then
- ZLIOStarted := zlioopen(HZLIO) or (Win32Platform<>VER_PLATFORM_WIN32_NT);
- end
- else
- ZLIOStarted := true;
- end;
-finalization
-
-if ZLIOStarted then
- zliostop;
-
-
-
-end.
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 10:08:41 +0000