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;=========================================================================
; Communications Device Driver Definitions - September, 1985
;=========================================================================
.xcref
WIN31 = 1
; remove unneeded things in Windows.inc
NOGDICAPMASKS = 1
NOVK = 1
NOWH = 1
NOMST = 1
NORASTOPS = 1
NOMETAFILE = 1
NOMDI = 1
NOWINMESSAGES = 1
NOSYSMETRICS = 1
NOCOLOR = 1
include windows.inc
DCBSize equ SIZE DCB
DCB_Flags equ byte ptr DCB_BitMask1
DCB_Flags2 equ byte ptr DCB_BitMask2
LPTx equ 10000000b ;Flags an ID as being an LPT port
; DCB_BitMask1 (DCB_Flags) equates
fBinary equ 00000001b ;Binary mode
fRTSDisable equ 00000010b ;Disable RTS
fParity equ 00000100b ;Perform Parity Checking
fOutXCTSFlow equ 00001000b ;Output handshaking using CTS
fOutXDSRFlow equ 00010000b ;Output handshaking using DSR
fEnqAck equ 00100000b ;ENQ/ACK software handshaking [rkh] ...
fEtxAck equ 01000000b ;ETX/ACK software handshaking
fDTRDisable equ 10000000b ;Disable DTR
; DCB_BitMask2 (DCB_Flags2) equates
fOutX equ 00000001b ;Output X-ON/X-OFF
fInX equ 00000010b ;Input X-ON/X-OFF
fPErrChar equ 00000100b ;Parity Error Replacement char active
fNullStrip equ 00001000b ;Null Stripping
fCharEvent equ 00010000b ;Character event
fDTRFlow equ 00100000b ;Input handshaking using DTR
fRTSFlow equ 01000000b ;Input handshaking using RTS
; equ 10000000b
; Values for RLSTimeout, CTSTimeout, DSRTimeout
Ignore equ 0
Infinite equ 0FFFFh
; COMS_BitMask1 equates
fCTSHold equ 00000001b ;Tx is on CTS hold
fDSRHold equ 00000010b ;Tx is on DSR hold
fRLSDHold equ 00000100b ;Tx is on RLSD hold
fXOFFHold equ 00001000b ;Received an X-OFF
fXOFFSent equ 00010000b ;Sent an X-OFF
fEOF equ 00100000b ;Received defined EOF character
fTxImmed equ 01000000b ;There's a char to transmit immediate
; equ 10000000b
; Event mask definitions. Used by SetCommEventMask and GetCommEventMask
;
; RXCHAR - Set when any character is received and placed in the input
; queue.
; RXFLAG - Set when a particular character, as defined in the DCB,
; is received and placed in the input queue.
; TXEMPTY - Set when the last character in the transmit queue is
; transmitted.
; CTS - Set when the CTS signal changes state.
; DSR - Set when the DSR signal changes state.
; RLSD - Set when the RLSD signal changes state.
; BREAK - Set when a break is detected on input.
; RING - Set when Ring Indicator is detected
; ERR - Set when a line status error occurs.
;=========================================================================
;
; qdb
; Queue definition block. Passed to setqueue, defines the location and
; size of the transmit and receive circular queue's used for interrupt
; transmit and recieve processing.
;
;=========================================================================
QDB struc
QueueRxAddr dd ? ;Pointer to RX Queue, Offset
QueueRxSize dw ? ;Size of RX Queue in bytes
QueueTxAddr dd ? ;Pointer to TX Queue, Offset
QueueTxSize dw ? ;Size of TX Queue in bytes
QDB ends
.cref
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