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