Source code of Windows XP (NT5)
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PAGE 58,132
;******************************************************************************
TITLE DCOMM.ASM - Dispatch Communications Driver
;******************************************************************************
;
; (C) Copyright NEC Software Kobe Corp. , 1994
;
; Title: DCOMM.ASM - Dispatch Communications Driver
;
; Version: 1.0
;
; Date: 27-Jun-1994
;
; Author: M.H
; (Masatoshi Hosokawa)
;
;------------------------------------------------------------------------------
;
; Change log:
;
; DATE REV DESCRIPTION
; ----------- --- -----------------------------------------------------------
; 27-Jun-1994 M.H Original
;------------------------------------------------------------------------------
.XLIST
include cmacros.inc
.LIST
;------------------------------------------------------------------------------
; extern
;------------------------------------------------------------------------------
externFP GetProcAddress
externFP GetPrivateProfileString
externFP LoadLibrary
externFP FreeLibrary
ifdef WINNT ;; Apr 15, 1995
externFP RegOpenKey
externFP RegCloseKey
externFP LoadLibraryEx32W
externFP FreeLibrary32W
externFP GetProcAddress32W
externFP CallProc32W
endif ;; Apr 15, 1995
;------------------------------------------------------------------------------
; public DATA
;------------------------------------------------------------------------------
public ComExAddr
public LptExAddr
public ComHandle
public LptHandle
;------------------------------------------------------------------------------
; public CODE
;------------------------------------------------------------------------------
public inicom
public setcom
public setque
public reccom
public sndcom
public ctx
public trmcom
public stacom
public cextfcn
public cflush
public cevt
public cevtGet
public csetbrk
public cclrbrk
public getdcb
public SuspendOpenCommPorts
public ReactivateOpenCommPorts
public CommWriteString
public ReadCommString ;Add 940924 KBNES
public EnableNotification
;------------------------------------------------------------------------------
; Equates
;------------------------------------------------------------------------------
MAX_PORT equ 9
ifdef WINNT ;; Apr 15, 1995
HKEY_LOCAL_MACHINE equ 80000002h
REG_SZ equ 00000001h
endif ;; Apr 15, 1995
;------------------------------------------------------------------------------
; Structures
;------------------------------------------------------------------------------
DCD_Struc STRUC
Proc@1 dd 0 ; inicom
Proc@2 dd 0 ; setcom
Proc@3 dd 0 ; setque
Proc@4 dd 0 ; reccom
Proc@5 dd 0 ; sndcom
Proc@6 dd 0 ; ctx
Proc@7 dd 0 ; trmcom
Proc@8 dd 0 ; stacom
Proc@9 dd 0 ; cextfcn
Proc@10 dd 0 ; cflush
Proc@11 dd 0 ; cevt
Proc@12 dd 0 ; cevtGet
Proc@13 dd 0 ; csetbrk
Proc@14 dd 0 ; cclrbrk
Proc@15 dd 0 ; getdcb
Proc@16 dd 0 ; Reserve
Proc@17 dd 0 ; SuspendOpenCommPorts
Proc@18 dd 0 ; ReactivateOpenCommPorts
Proc@19 dd 0 ; CommWriteString
Proc@20 dd 0 ; ReadCommString ;Add 94.09.20 KBNES
Proc@100 dd 0 ; EnableNotification
DCD_Struc ENDS
;------------------------------------------------------------------------------
; Data
;------------------------------------------------------------------------------
sBegin Data
ComExAddr DCD_Struc <>
db SIZE DCD_Struc * (MAX_PORT - 1) dup(0)
LptExAddr DCD_Struc <>
db SIZE DCD_Struc * (MAX_PORT - 1) dup(0)
ComHandle dw MAX_PORT dup(0)
LptHandle dw MAX_PORT dup(0)
ExFuncAddrPtr dw 0
EndExFuncAddrPtr dw 0
tmpMAX dw 0
ifdef WINNT ;; Apr 15, 1995
DefaultDriver db 'neccomm.drv',0
CCU2ndDriver db 'nec2comm.drv',0
ComDriver dw DefaultDriver ;;
dw DefaultDriver ;; FIXME FIXME
dw CCU2ndDriver ;; FIXME FIXME COM2 is 2ndCCU only
dw MAX_PORT dup(DefaultDriver) ;; FIXME FIXME
LptDriver dw MAX_PORT+1 dup(DefaultDriver)
ComEntryNum dw 0
LptEntryNum dw 0
HkeyLocalMachine dd HKEY_LOCAL_MACHINE
NULL dd 00000000H
SerialKeyName db 'HARDWARE\DEVICEMAP\SERIALCOMM', 0
ParaKeyName db 'HARDWARE\DEVICEMAP\PARALLEL PORTS', 0
KeyHandle dd ?
dwIndex dd ?
dwType dd ?
dwSize dd ?
szSerial db 'Serial' ; EntryName = DriverName
SerialNum db 20 dup (0)
LenszSerial dd $ - szSerial
szCom db 'COM'
ComNum db 0,0,0,0
db 20 dup (0)
LenszCom dd $ - szCOM
szParallel db '\Device\Parallel' ; EntryName = DriverName
ParaNum db 20 dup (0)
LenszParallel dd $ - szParallel
szLpt db '\DosDevices\LPT'
LptNum db 0,0,0,0
db 20 dup (0)
LenszLpt dd $ - szLpt
;
; for Generic Thunk
;
szDllName db 'advapi32',0
szProcName db 'RegEnumValueW',0
hAdvApi dd ?
dwNparams dd 8
lpRegEnumValue dd ?
AddrConv dd 011011101b
else ;; Apr 15, 1995
DriverNameMax equ 256
DriverName db DriverNameMax dup (0)
SectionName db 'DispatchComm',0 ; [Section]
ComEntryName db 'Com' ; EntryName = DriverName
ComEntryNum db '0.drv',0
LptEntryName db 'Lpt' ; EntryName = DriverName
LptEntryNum db '0.drv',0
DefaultDrvName db 'neccomm.drv',0 ; DriverName(entry not found)
SystemIni db 'system.ini',0 ; file name
endif ;; Apr 15, 1995
sEnd
;------------------------------------------------------------------------------
; Macro
;------------------------------------------------------------------------------
;func(pdcb)
Dispatch_DCB macro Func
local D_LPTx
local D_COMx
local D_SetFuncAddr
local D_Error
ifdef DEBUG
int 3 ; Debug Code
endif ;DEBUG
sub sp, 4 ; make stack space for retf addr
push eax ; save eax
push ebx ; save ebx
push ds ; save ds
mov bx, sp
mov eax, ss:[bx + 18] ; mov eax, lpdcb
; 18 = 4+4+4+4+2(retaddr,retfaddr,eax,ebx,ds)
mov bx, ax ; set offset lpdcb
shr eax, 16 ; calculate segment lpdcb
mov ds, ax ; set segment lpdcb
mov al, byte ptr [bx] ; Get al = cid
mov bx, _DATA
mov ds, bx ; ds = Data
test al, 80h ; Q:LPTx or COMx ?
jz short D_COMx ; If COMx then goto D_COMx
D_LPTx:
mov bx, offset LptExAddr
jmp short D_SetFuncAddr
D_COMx:
mov bx, offset ComExAddr
D_SetFuncAddr:
and eax, 007Fh
cmp ax, MAX_PORT - 1
jbe SHORT @f
xor ax, ax
@@:
imul eax, SIZE DCD_Struc ; EAX = Offset in LPT table
add bx, ax
mov eax, [bx + Func] ; get COMM.DRV entry addr
or eax, eax
jz short D_Error
pop ds ; restore ds
mov bx, sp
mov ss:[bx + 8], eax ; set COMM.DRV entry addr
; 8 = 4+4(eax,ebx)
pop ebx ; restore ebx
pop eax ; restore eax
retf ; go to COMM.DRV driver
D_Error:
pop ds ; restore ds
pop ebx ; restore ebx
add sp, 8
mov ax, 0 ; return
retf 4
endm
;func(cid,..etc)
Dispatch_cid macro Func, cid, addsp
local D_LPTx
local D_COMx
local D_SetFuncAddr
local D_Error
ifdef DEBUG
int 3 ; Debug Code
endif ;DEBUG
sub sp, 4 ; make stack space for retf addr
push eax ; save eax
push ebx ; save ebx
push ds ; save ds
mov bx, _DATA
mov ds, bx ; ds = Data
mov bx, sp
mov ax, ss:[bx + cid + 18] ; mov al, cid
; 18 = 4+4+4+4+2(retaddr,retfaddr,eax,ebx,ds)
test al, 0080h ; Q:LPTx or COMx ?
jz short D_COMx ; If COMx then goto D_COMx
D_LPTx:
mov bx, offset LptExAddr
jmp short D_SetFuncAddr
D_COMx:
mov bx, offset ComExAddr
D_SetFuncAddr:
and eax, 007Fh
cmp ax, MAX_PORT - 1
jbe SHORT @f
xor ax, ax
@@:
imul eax, SIZE DCD_Struc ; EAX = Offset in LPT table
add bx, ax
mov eax, [bx + Func] ; get COMM.DRV entry addr
or eax, eax
jz short D_Error
pop ds ; restore ds
mov bx, sp
mov ss:[bx + 8], eax ; set COMM.DRV entry addr
; 8 = 4+4(eax,ebx)
pop ebx ; restore ebx
pop eax ; restore eax
retf ; go to COMM.DRV driver
D_Error:
pop ds ; restore ds
pop ebx ; restore ebx
add sp, 8
mov ax, 0 ; return
retf addsp
endm
;void func(void)
Dispatch_void macro FuncName, Func
local D_Loop
local D_Skip
cProc FuncName,<FAR,PUBLIC,PASCAL>
cBegin nogen
ifdef DEBUG
int 3 ; Debug Code
endif ;DEBUG
push es ; save es
mov ecx, MAX_PORT * 2 ; Set loop counter(COM & LPT)
mov ax, _DATA
mov es, ax ; es = Data
mov bx, offset ComExAddr ; get Function Addr Ptr
mov di, offset ComHandle ; get handle Ptr
D_Loop:
mov ax, es:[di] ; get handle
or ax, ax ; Q:Invalid handle?
jz SHORT D_Skip ; Yes.
mov eax, es:[bx + Func] ; get COMM.DRV entry addr
or eax, eax ; Q: entry addr OK?
jz SHORT D_Skip ; No. Skip call COMM.DRV.
pushad ; save all register
call dword ptr es:[bx + Func]; call COMM.DRV driver
popad ; restore all register
D_Skip:
add di, 2 ; calculate next handle Ptr
add bx, SIZE DCD_Struc ; calculate next Function Addr Ptr
loop SHORT D_Loop
pop es ; restore es
ret
cEnd nogen
endm
;------------------------------------------------------------------------------
; Code
;------------------------------------------------------------------------------
sBegin Code
assumes cs,Code
assumes ds,Data
.386
;------------------------------------------------------------------------------
; USE DCB ID
;------------------------------------------------------------------------------
inicom proc far
; parmD pdcb
Dispatch_DCB Proc@1
inicom endp
setcom proc far
; parmD pdcb
Dispatch_DCB Proc@2
setcom endp
;------------------------------------------------------------------------------
; USE CID
;------------------------------------------------------------------------------
setque proc far
; parmB cid
; parmD pqdb
Dispatch_cid Proc@3, 4, 6
setque endp
reccom proc far
; parmB cid
Dispatch_cid Proc@4, 0, 2
reccom endp
sndcom proc far
; parmB cid
; parmB chr
; Dispatch_cid Proc@5, 1, 4 ;Bug fixed 94.09.20 KBNES
Dispatch_cid Proc@5, 2, 4 ;Bug fixed 94.09.20 KBNES
sndcom endp
ctx proc far
; parmB cid
; parmB chr
; Dispatch_cid Proc@6, 1, 4 ;Bug fixed 94.09.20 KBNES
Dispatch_cid Proc@6, 2, 4 ;Bug fixed 94.09.20 KBNES
ctx endp
trmcom proc far
; parmB cid
Dispatch_cid Proc@7, 0, 2
trmcom endp
stacom proc far
; parmB cid
; parmD pstat
; Dispatch_cid Proc@8, 4, 4 ;Bug fixed 94.09.20 KBNES
Dispatch_cid Proc@8, 4, 6 ;Bug fixed 94.09.20 KBNES
stacom endp
;------------------------------------------------------------------------------
; USE CID, But(GETMAXCOM GETMAXLPT) call all driver
;------------------------------------------------------------------------------
;;cextfcn function stack
;;
;; offset size coment
;; -10 4 COMM.DRV Entry addr (use only GETMAXCOM or LPT)
;; - 6 4 GETMAXLoop addr (use only GETMAXCOM or LPT)
;; - 4 2 func (use only GETMAXCOM or LPT)
;; - 2 2 id (use only GETMAXCOM or LPT)
;; 0 2 gs
;; 2 2 fs
;; 4 2 es
;; 6 2 ds
;; 8 4 ebp
;; 12 4 edi
;; 16 4 esi
;; 20 4 edx
;; 24 4 ecx
;; 28 4 ebx
;; 32 4 eax
;; 36 4 COMM.DRV Entry addr
;; 40 4 return addr
;; 44 2 func
;; 46 2 id
cextfcn proc far
; parmB cid
; parmW fcn
ifdef DEBUG
int 3 ; Debug Code
endif ;DEBUG
sub sp, 4 ; make stack space for retf addr
push eax
push ebx
push ecx
push edx
push esi
push edi
push ebp
push ds
push es
push fs
push gs
mov ax, _DATA
mov ds, ax ; ds = Data
mov bx, sp
mov ax, ss:[bx + 44] ; mov ax, fcn
; 44 = 36+4+4(pushreg,retaddr,retfaddr)
mov bx, offset ComExAddr
cmp ax, 9 ; Q:fcn = GETMAXCOM ?
je SHORT GetMaxEntry ; Yes.
mov bx, offset LptExAddr
cmp ax, 8 ; Q:fcn = GETMAXLPT ?
je SHORT GetMaxEntry ; Yes.
mov bx, sp
mov al, ss:[bx + 46] ; mov al, id
; 46 = 36+4+4+2(pushreg,retaddr,retfaddr,fcn)
mov bx, offset ComExAddr
test al, 0080h ; Q:LPTx or COMx ?
jz short Fcn_SetFuncAddr ; Yes.
mov bx, offset LptExAddr ; No.
Fcn_SetFuncAddr:
and eax, 007Fh
cmp ax, MAX_PORT - 1
jbe SHORT @f
xor ax, ax
@@:
imul eax, SIZE DCD_Struc ; EAX = Offset in LPT table
add bx, ax
mov eax, [bx + Proc@9] ; get COMM.DRV entry addr
or eax, eax
jz short Fcn_Error
mov bx, sp
mov ss:[bx + 36], eax ; set COMM.DRV entry addr
; 36 = (pushreg)
pop gs
pop fs
pop es
pop ds
pop ebp
pop edi
pop esi
pop edx
pop ecx
pop ebx
pop eax
retf ; go to COMM.DRV driver
Fcn_Error:
pop gs
pop fs
pop es
pop ds
pop ebp
pop edi
pop esi
pop edx
pop ecx
pop ebx
pop eax
add sp, 4 ; del stack space for retf addr
mov ax, 0 ; return
retf 4
; fcn = GETMAXCOM or GETMAXLPT call all driver
GetMaxEntry:
mov ExFuncAddrPtr, bx ; Set ExFuncAddrPtr
add bx, SIZE DCD_Struc * MAX_PORT
mov EndExFuncAddrPtr, bx ; set EndExFuncAddrPtr
mov tmpMAX, 0 ; Clear tmpMAX
GETMAX1:
xor ax, ax ; Clear ax
GETMAXLoop:
mov bx, _DATA
mov ds, bx ; ds = Data
cmp ax, tmpMAX
jbe @f
mov tmpMAX, ax
@@:
mov bx, ExFuncAddrPtr
cmp bx, EndExFuncAddrPtr ; Q:Loop End?
je GETMAXEnd ; Yes.
mov eax, [bx + Proc@9] ; get COMM.DRV entry addr
add ExFuncAddrPtr, SIZE DCD_Struc; calculate next Function Addr Ptr
or eax, eax ; Q:Invalid Addr?
jz SHORT GETMAX1 ; Yes.
mov bx, sp
sub sp, 4 ; make stack space for (func,id)
push cs
push offset GETMAXLoop
push eax ; Set COMM.DRV entry addr
mov ax, ss:[bx + 44] ; get func
mov ss:[bx - 4],ax ; set func
mov ax, ss:[bx + 46] ; get id
mov ss:[bx - 2],ax ; set id
; restore pushreg val
mov ax, ss:[bx]
mov gs, ax
mov ax, ss:[bx + 2]
mov fs, ax
mov ax, ss:[bx + 4]
mov es, ax
mov ax, ss:[bx + 6]
mov ds, ax
mov ebp, ss:[bx + 8]
mov edi, ss:[bx + 12]
mov esi, ss:[bx + 16]
mov edx, ss:[bx + 20]
mov ecx, ss:[bx + 24]
mov eax, ss:[bx + 32]
mov ebx, ss:[bx + 28]
retf ; go to COMM.DRV driver
GETMAXEnd:
mov dx, tmpMAX
mov bx, sp
; restore pushreg val
mov ax, ss:[bx]
mov gs, ax
mov ax, ss:[bx + 2]
mov fs, ax
mov ax, ss:[bx + 4]
mov es, ax
mov ax, ss:[bx + 6]
mov ds, ax
mov ebp, ss:[bx + 8]
mov edi, ss:[bx + 12]
mov esi, ss:[bx + 16]
mov ecx, ss:[bx + 24]
mov ebx, ss:[bx + 28]
mov ax, dx
xor dx, dx
add sp, 36 + 4
retf 4
cextfcn endp
;------------------------------------------------------------------------------
; USE CID
;------------------------------------------------------------------------------
cflush proc far
; parmB cid
; parmB q
; Dispatch_cid Proc@10, 1, 4 ;Bug fixed 94.09.20 KBNES
Dispatch_cid Proc@10, 2, 4 ;Bug fixed 94.09.20 KBNES
cflush endp
cevt proc far
; parmB cid
; parmW evt_mask
Dispatch_cid Proc@11, 2, 4
cevt endp
cevtGet proc far
; parmB cid
; parmW evt_mask
Dispatch_cid Proc@12, 2, 4
cevtGet endp
csetbrk proc far
; parmB cid
Dispatch_cid Proc@13, 0, 2
csetbrk endp
cclrbrk proc far
; parmB cid
Dispatch_cid Proc@14, 0, 2
cclrbrk endp
getdcb proc far
; parmB cid
Dispatch_cid Proc@15, 0, 2
getdcb endp
;------------------------------------------------------------------------------
; Call All Driver
;------------------------------------------------------------------------------
Dispatch_void SuspendOpenCommPorts, Proc@17
Dispatch_void ReactivateOpenCommPorts, Proc@18
;------------------------------------------------------------------------------
; USE CID
;------------------------------------------------------------------------------
CommWriteString proc far
; parmB cid
; parmD lpstring
; parmW count
Dispatch_cid Proc@19, 6, 8
CommWriteString endp
ReadCommString proc far ;Add 94.09.20 KBNES
; parmB cid ;Add 94.09.20 KBNES
; parmD buf ;Add 94.09.20 KBNES
; parmW cnt ;Add 94.09.20 KBNES
Dispatch_cid Proc@20, 6, 8 ;Add 94.09.20 KBNES
ReadCommString endp ;Add 94.09.20 KBNES
EnableNotification proc far
; parmB cid
; parmW _hWnd
; parmW recvT
; parmW sendT
; Dispatch_cid Proc@100, 12, 8 ;Bug fixed 94.09.20 KBNES
Dispatch_cid Proc@100, 6, 8 ;Bug fixed 94.09.20 KBNES
EnableNotification endp
cProc WEP,<PUBLIC,FAR>
cBegin nogen
ifdef DEBUG
int 3 ; Debug Code
endif ;DEBUG
; Free Communications Driver
pushad
mov ax, _DATA ;Bug fixed 941008 KBNES
mov ds, ax ;Bug fixed 941008 KBNES
mov cx, MAX_PORT * 2 ; Set loop Counter
mov bx, offset ComHandle ; Set Comm Driver handle address
FreeCommDrv:
mov ax, [bx] ; Get Communications Driver handle
add bx, 2 ; calculate next Comm Driver handle
or ax, ax ; Q:Invalid handle?
jz SHORT @f ; Yes.
push bx ; save bx
push cx ; save cx
cCall FreeLibrary,<ax> ; Free Communications Driver
pop cx ; restore cx
pop bx ; restore bx
@@:
loop SHORT FreeCommDrv
popad
nop ; You don't want to know why.
mov ax,1
ret 2
cEnd nogen
sEnd Code
;------------------------------------------------------------------------------
; Initial Code
;------------------------------------------------------------------------------
.286
createSeg _INIT,init,word,public,CODE
sBegin init
assumes cs,init
.386
cProc LoadLib, <FAR,PUBLIC,NODATA>,<si,di>
cBegin
ifdef DEBUG
int 3 ; Debug Code
endif ;DEBUG
pushad
mov ax, _DATA ;Bug fixed 941008 KBNES
mov ds, ax ;Bug fixed 941008 KBNES
ifdef WINNT
; hAdvApi = LoadLibraryEx32W(szDllName, NULL, 0);
; if ((fpRegEnum = GetProcAddress32W(hAdvApi, szProcName)) == NULL) {
; int21(0x4c00); //system done.
; }
;
lea ax,szDllName
push ds
push ax
push 0
push 0
push 0
push 0
call far ptr LoadLibraryEx32W
mov word ptr hAdvApi,ax
mov word ptr hAdvApi+2,dx
mov bx,ax
or bx,dx
jne @f
stc
jmp CSHEnd
@@:
; farPtr lpszProcName,ds,ax
; cCall GetProcAddress32W,<hAdvApi,lpszProcName>
push dx
push ax
lea cx,szProcName
push ds
push cx
call far ptr GetProcAddress32W
mov word ptr lpRegEnumValue,ax
mov word ptr lpRegEnumValue+2,dx
or ax,dx
jne @f
stc
jmp CSHEnd
@@:
endif
ifdef WINNT ;; Apr 15, 1995
;;
;; Set Driver Name for All Seiral Ports
;;
;; Psude code
;;
;; if (!RegOpenKey (HKEY_LOCAL_MACHINE, szRegSerialMap, &hkey))
;; {
;; while (!RegEnumValue (hkey, i++, szSerial, &dwBufz,
;; NULL, &dwType, szCom, &dwSize)) {
;; if (dwType == REG_SZ) {
;; if (szSerial[7] == '0') ComDriver[szCom[3]-'0'] = DefaultDriver;
;; else if ((szSerial[8] == '0') && (szSerial[7] == '2'))
;; ComDriver[szCom[3]-'0'] = CCU2ndDriver;
;; else // nothing
;; }
;; }
;; RegCloseKey(hkey);
;; }
lea ax,KeyHandle
farPtr lpKeyHandle,ds,ax
lea bx,SerialKeyName
farPtr lpSerialKeyName,ds,bx
cCall RegOpenKey,<HkeyLocalMachine,lpSerialKeyName,lpKeyHandle>
cmp ax,0
jne EnumFailed
mov dwIndex,0
jmp short EnumSerialStart
EnumSerial:
inc dwIndex
EnumSerialStart:
mov LenszSerial,26
mov LenszCom,27
lea ax,szSerial
farPtr lpszSerial,ds,ax
lea bx,LenszSerial
farPtr lpLenszSerial,ds,bx
lea cx,dwType
farPtr lpdwType,ds,cx
lea dx,szCom
farPtr lpszCom,ds,dx
lea di,LenszCom
farPtr lpLenszCom,ds,di
;; CallProc32W(KeyHandle,dwIndex,lpszSerial,lpLenszSerial,NULL,lpdwType,lpszCom,lpLenszCom,
;; lpRegEnumValue, AddrConv, 8);
cCall CallProc32W,<KeyHandle,dwIndex,lpszSerial,lpLenszSerial,NULL,lpdwType,lpszCom,lpLenszCom,lpRegEnumValue,AddrConv,dwNparams>
or ax,dx
jne EnumSerialEnd
cmp dwType,REG_SZ ; Is type of value REG_SZ ?
jne EnumSerial
lea di,szSerial
mov ah,[di+7]
cmp ah,0h ; Serial[7] == 0 ?
jne @f
lea ax,DefaultDriver
jmp SetDriverName
@@:
mov ah,[di+6]
cmp ah,32h ; Serial[6] == '2' ?
jne EnumSerial
mov ah,[di+8]
cmp ah,0h ; Serial[8] == 0 ?
jne EnumSerial
lea ax,CCU2ndDriver
SetDriverName:
lea si,szCom
mov bx,[si+3]
sub bx,30h
shl bx,1 ; bx *= 2
lea di,ComDriver
mov [di+bx],ax
jmp EnumSerial
EnumSerialEnd:
cCall RegCloseKey,<KeyHandle>
;;
;; Set Driver Name for All Parallel Ports
;;
;; Psude code
;;
;; if (!RegOpenKey (HKEY_LOCAL_MACHINE, szRegParallelMap, &hkey))
;; {
;; while (!RegEnumValue (hkey, i++, szParallel, &dwBufz,
;; NULL, &dwType, szLpt, &dwSize)) {
;; if (dwType == REG_SZ) {
;; if (szParallel[16] == '0') LptDriver[szLpt[15]-'0'] = DefaultDriver;
;; else // nothing
;; }
;; }
;; RegCloseKey(hkey);
;; }
lea ax,KeyHandle
farPtr lpKeyHandle,ds,ax
lea bx,ParaKeyName
farPtr lpParaKeyName,ds,bx
cCall RegOpenKey,<HkeyLocalMachine,lpParaKeyName,lpKeyHandle>
cmp ax,0
jne EnumFailed
mov dwIndex,0
jmp short EnumParallelStart
EnumParallel:
inc dwIndex
EnumParallelStart:
mov LenszParallel,36
mov LenszLpt,39
;; CallProc32W(KeyHandle,dwIndex,lpszSerial,lpLenszSerial,NULL,lpdwType,lpszCom,lpLenszCom,
;; lpRegEnumValue, AddrConv, 8);
lea ax,szParallel
farPtr lpszParallel,ds,ax
lea bx,LenszParallel
farPtr lpLenszParallel,ds,bx
lea cx,dwType
farPtr lpdwType,ds,cx
lea dx,szLpt
farPtr lpszLpt,ds,dx
lea di,LenszLpt
farPtr lpLenszLpt,ds,di
cCall CallProc32W,<KeyHandle,dwIndex,lpszSerial,lpLenszSerial,NULL,lpdwType,lpszCom,lpLenszCom,lpRegEnumValue,AddrConv,dwNparams>
or ax,dx
jne EnumParallelEnd
cmp dwType,REG_SZ ; Value type is not REG_SZ
jne EnumParallel
lea di,szParallel
mov ah,30h
cmp [di+16],ah ; dzParallel[16] == 0 ?
jne EnumParallel
lea si,szLpt
xor bx,bx
mov bl,[si+15] ; LPT No. = szLpt[15] - '0'
sub bx,30h
shl bx,1 ; bx *= 2
lea ax,DefaultDriver
mov [LptDriver+bx],ax
jmp EnumParallel
EnumParallelEnd:
cCall RegCloseKey,<KeyHandle>
; FreeLibraryEx32W(hAdvApi);
cCall FreeLibrary32W,<hAdvApi>
jmp @f
EnumFailed:
cCall FreeLibrary32W,<hAdvApi>
stc
jmp CSHEnd
@@:
LoadDriverStart:
endif ;; Apr 15, 1995
; Load and Set Communications Driver Function's Address
xor cx, cx ; Clear loop counter
LCDLoop:
push cx ; Save loop counter
; Get Communications driver Name(COMx)
inc ComEntryNum ; Set Comm EntryName Number
ifdef WINNT ;; Apr 15, 1995
;;
;; Do Nothing
;;
else ;; Apr 15, 1995
lea ax,SectionName
farPtr lpSection,ds,ax
lea bx,ComEntryName
farPtr lpEntry,ds,bx
lea cx,DefaultDrvName
farPtr lpDefault,ds,cx
lea dx,DriverName
farPtr lpReturnBuf,ds,dx
mov si,DriverNameMax
lea di,SystemIni
farPtr lpFileName,ds,di
cCall GetPrivateProfileString,<lpSection,lpEntry,lpDefault,lpReturnBuf,si,lpFileName>
endif ;; Apr 15, 1995
; load Communications driver(COMx)
ifdef WINNT ;; Apr 15, 1995
mov bx,ComEntryNum
shl bx,1
mov ax,ComDriver[bx]
else ;; Apr 15, 1995
lea ax, DriverName
endif ;; Apr 15, 1995
farPtr module_name,ds,ax
cCall LoadLibrary,<module_name>
cmp ax, 32 ; Q:LoadLibrary() Success?
ja SHORT LoadCOMx ; Yes.
; No.
pop cx
push cx
or cx, cx ; Q:COM1?
jnz SHORT @f ; No.
ifdef WINNT ;; Jul 24, 1995
stc
jmp CSHEnd
else
popad
mov ax,4c00h ; System Done.
int 21h ; <--- !!!!!
endif
@@:
mov ax, cx
mov bx, offset ComHandle
mov si, [bx]
jmp SHORT GetComExAddr
LoadCOMx:
; Get Communications driver(COMx) Export Function Address
mov si,ax ; si = Communication driver's handle
mov bx, offset ComHandle
pop cx
push cx
mov ax, cx
shl cx, 1
add bx, cx
mov [bx], si ; Set Module handle
GetComExAddr:
; mov cx, 19 ;Del 94.09.20 KBNES
mov cx, 20 ;Add 94.09.20 KBNES
mov bx, offset ComExAddr
imul eax, SIZE DCD_Struc ; EAX = Offset in COM table
add bx, ax
GPAC1:
; mov ax, 20 ;Del 94.09.20 KBNES
mov ax, 21 ;Add 94.09.20 KBNES
sub ax, cx ; Set EXPORT No.
cwd
push bx ; save bx
push cx ; save cx
farPtr func_number,dx,ax
cCall GetProcAddress,<si,func_number> ; Get COMM.DRV FuncX Address
pop cx ; restore cx
pop bx ; restore bx
mov [bx], ax
mov [bx + 2], dx
add bx, 4
loop SHORT GPAC1
mov ax, 100 ; Set EXPORT No.
cwd
push bx ; save bx
farPtr func_number,dx,ax
cCall GetProcAddress,<si,func_number> ; Get COMM.DRV FuncX Address
pop bx ; restore bx
mov [bx], ax
mov [bx + 2], dx
; Get Communications driver Name(LPTx)
inc LptEntryNum ; Set Lpt EntryName Number
ifdef WINNT ;; Apr 15, 1995
;;
;; Do Nothing
;;
else ;; Apr 15, 1995
lea ax,SectionName
farPtr lpSection,ds,ax
lea bx,LptEntryName
farPtr lpEntry,ds,bx
lea cx,DefaultDrvName
farPtr lpDefault,ds,cx
lea dx,DriverName
farPtr lpReturnBuf,ds,dx
mov si,DriverNameMax
lea di,SystemIni
farPtr lpFileName,ds,di
cCall GetPrivateProfileString,<lpSection,lpEntry,lpDefault,lpReturnBuf,si,lpFileName>
endif ;; Apr 15, 1995
; load Communications driver(LPTx)
ifdef WINNT ;; Apr 15, 1995
mov bx,LptEntryNum
shl bx,1
mov ax,LptDriver[bx]
else ;; Apr 15, 1995
lea ax, DriverName
endif ;; Apr 15, 1995
farPtr module_name,ds,ax
cCall LoadLibrary,<module_name>
cmp ax, 32 ; Q:LoadLibrary() Success?
ja SHORT LoadLPTx ; Yes.
; No.
pop cx
push cx
or cx, cx ; Q:COM1?
jnz SHORT @f ; No.
ifdef WINNT ;; Jul 24, 1995
stc
jmp CSHEnd
else
popad
mov ax,4c00h ; System Done.
int 21h ; <--- !!!!!
endif
@@:
mov ax, cx
mov bx, offset LptHandle
mov si, [bx]
jmp SHORT GetLptExAddr
LoadLPTx:
; Get Communications driver(LPTx) Export Function Address
mov si,ax ; si = Communication driver's handle
mov bx, offset LptHandle
pop cx
push cx
mov ax, cx
shl cx, 1
add bx, cx
mov [bx], si ; Set Module handle
GetLptExAddr:
; mov cx, 19 ;Del 94.09.20 KBNES
mov cx, 20 ;Add 94.09.20 KBNES
mov bx, offset LptExAddr
imul eax, SIZE DCD_Struc ; EAX = Offset in COM table
add bx, ax
GPAL1:
; mov ax, 20 ;Del 94.09.20 KBNES
mov ax, 21 ;Add 94.09.20 KBNES
sub ax, cx ; Set EXPORT No.
cwd
push bx ; save bx
push cx ; save cx
farPtr func_number,dx,ax
cCall GetProcAddress,<si,func_number> ; Get COMM.DRV FuncX Address
pop cx ; restore cx
pop bx ; restore bx
mov [bx], ax
mov [bx + 2], dx
add bx, 4
loop SHORT GPAL1
mov ax, 100 ; Set EXPORT No.
cwd
push bx ; save bx
farPtr func_number,dx,ax
cCall GetProcAddress,<si,func_number> ; Get COMM.DRV FuncX Address
pop bx ; restore bx
mov [bx], ax
mov [bx + 2], dx
pop cx ; Restore loop counter
inc cx ; Count up
cmp cx, MAX_PORT ; if (CX != MAX_PORT)
jne LCDLoop ; then goto LCDLoop
; Clear Same Handle
; Algorism
; for (bx=1 to MAX_PORT*2-1)
; if (ComHandle[bx]!=0) for (si=bx+1 to MAX_PORT*2)
; if (ComHandle[bx]==ComHandle[si]) ComHandle[si]=0
xor bx, bx ; Clear Counter(bx)
CSHLoop1:
cmp bx, (MAX_PORT*2 - 1)*2 ; Q:Loop1 Done?
je SHORT CSHEnd ; Yes.
mov ax, ComHandle[bx]
or ax, ax ; Q:Invalid handle?
jz SHORT CSHSkip ; Yes.
mov di, ax ; di = ComHandle[bx]
mov si, bx ; Set Counter(si)
CSHLoop2:
add si, 2 ; Count Up(si)
cmp si, (MAX_PORT * 2) * 2 ; Q:Loop2 done?
je SHORT CSHSkip ; Yes.
xor ax, ComHandle[si] ; Q:Same Handle?
jnz SHORT @f ; No.
mov ComHandle[si], ax ; Yes. Clear Same Handle
push bx
push si
push di
cCall FreeLibrary,<di> ; Free Communications Driver
pop di
pop si
pop bx
@@:
mov ax, di ; ax = ComHandle[bx]
jmp SHORT CSHLoop2
CSHSkip:
add bx, 2 ; Count Up(bx)
jmp SHORT CSHLoop1
CSHEnd:
popad
cEnd
sEnd init
End LoadLib