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731 lines
21 KiB
NASM
731 lines
21 KiB
NASM
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;***********************************************************************
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;*
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;* Copyright (C) Kopriha Software, 1990 - 1991
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;* All rights reserved.
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;* Licensed material -- property of Kopriha Software
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;*
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;* This software is made available solely pursuant to the terms
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;* of a Kopriha Software license agreement which governs its use.
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;*
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;*
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;* File Printer Port Driver
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;*
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;*
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;* Description:
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;* The goal of this GS port driver is to allow the user of any printer
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;* driver to save their printer driver output in a user specified file.
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;*
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;* There is no user interface (unless error dialogs count...)
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;*
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;* If this port driver encounters any error, a dialog box will be
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;* displayed with the error code and a message saying that the printer
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;* output could not be saved. The user will have two buttons -
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;* DELETE_OUTPUT and OK. Delete output will simply delete the output
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;* file and act as an OK button.
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;*
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;* Rational for this driver: I want to be able to 'print' a file on
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;* my GS, bring the file to work and print the file on a printer here.
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;*
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;* The other idea is that this approach leaves the door open for
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;* utility to print the on a GS (the best approach would be to get
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;* Bill Tutor to modify his text spooler to work with printer image
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;* files...).
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;*
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;*
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;* Notes:
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;* This printer port driver is complies to the version 3.0 printer
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;* driver specs. See IIGS technotes 35 (dated March 1990) and
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;* technote 36 (dated September 1989) for the printer/port driver
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;* specificiations.
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;*
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;* The resulting port driver must be given filetype $BB
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;* auxiliary type $02 (IE: Port driver for local printer).
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;*
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;* The entire file port driver is designed to fit within one 64K
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;* segment/bank of memory. If it must span more than one memory
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;* bank, then you will have to correct the dispatch routine and
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;* possibly some references to the internal data structures.
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;*
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;* Further References:
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;* Apple IIGS Toolbox Reference, Volumes 1 & 2
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;* Apple IIGS Technical Note #35, Printer Driver Specifications
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;* Apple IIGS Technical Note #36, Port Driver Specifications
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;*
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;*
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;* History: Feb 20 1990 Dave Began coding of File Port Driver
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;* (started with NullPortDriver)
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;*
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;*
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;*
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;***********************************************************************
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case on Set case sensitivity in assembler
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objcase on Set case sensitivity in object
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gen off List generated code
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trace off List all macro generation
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mcopy port.macros Include the port driver macros
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TRUE gequ 1 Define TRUE and FALSE
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FALSE gequ 0
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PT_Unknown gequ 0 Define the special types
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PT_ImageWriter gequ 4 of printers (These printers
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PT_ImageWriterLQ gequ 8 respond to a read after being
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; sent a ID/status command)
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;***********************************************************************
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;*
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StartOfDriver start
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;*
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;* Description:
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;* Dispatch to each of the port driver support drivers.
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;*
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;* Note:
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;* This routine must be the first in the port driver - the first two
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;* words are used to determine what version port driver specification
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;* is installed.
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;*
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;* History:
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;* Most of this routine was provided by GS technote # 35.
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;*
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;***********************************************************************
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using PortData
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; Setup the header of the driver (as per the technote)
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dc i2'0' ; version 3.0 style driver
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dc i2'12' ; Supported # of port calls
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; Set the data bank to our own, saving the previous one for later
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phb ; Save data bank
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phk
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plb ; Set data bank to our own
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; Increment a counter of port calls. This counter is used to
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; determine the printer driver type (after an open, there is
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; usually a write, followed by a read). If we can return the
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; right string on the read then all of the options are enabled
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; in the printer job dialog.
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inc PortCallCounter
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; Finally, lets dispatch to the port driver routine (X was preset,
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; see the technote for details).
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jmp (PrPortDrvList,x)
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; Routine name Toolbox call #
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PrPortDrvList dc a4'PrDevPrChanged' ; $1913
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dc a4'PrDevStartUp' ; $1A13
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dc a4'PrDevShutDown' ; $1B13
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dc a4'PrDevOpen' ; $1C13
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dc a4'PrDevRead' ; $1D13
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dc a4'PrDevWrite' ; $1E13
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dc a4'PrDevClose' ; $1F13
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dc a4'PrDevStatus' ; $2013
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dc a4'PrDevAsyncRead' ; $2113 (alias PrDevInitBack)
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dc a4'PrDevWriteBackground' ; $2213 (alias PrDevFillBack)
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dc a4'PrPortVer' ; $2413
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dc a4'PrDevIsItSafe' ; $3013
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end ; of StartOfDriver
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;***********************************************************************
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;*
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PrDevPrChanged start
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;*
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;* Description:
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;* The Print Manager makes this call every time the user accepts
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;* this port driver in the Choose Printer dialog.
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;*
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;* Our version of this routine will set the printer type to Unknown
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;*
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;* Input: LONG printer name pointer
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;*
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;***********************************************************************
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using PortData
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port_subroutine (4:printername)
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; Set the printer type to unknown
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;
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; Note: I refused to use stz because that will avoid the predefined
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; constants - if I change Unknown to some other value, a STZ
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; wouldn't work any more!
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lda #PT_Unknown
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sta PrinterType
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port_return
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rtl
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end ; of PrDevPrChanged
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;***********************************************************************
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;*
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PrDevStartUp start
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;*
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;* Description:
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;* This call is not required to do anything. However, if your
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;* driver needs to initialize itself by allocating memory or other
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;* setup tasks, this is the place to do it. Network drivers should
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;* copy the printer name to a local storage area for later use.
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;*
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;* Our version of this routine will do nothing.
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;*
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;* Input: LONG printer name pointer
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;* LONG zone name pointer
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;*
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;***********************************************************************
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port_subroutine (4:zonename,4:printername)
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port_return
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cmp #1
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rtl
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end ; of PrDevPrChanged
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;***********************************************************************
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;*
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PrDevShutDown start
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;*
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;* Description:
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;* This call, like PrDevStartUp, is not required to do anything.
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;* However, if your driver performs other tasks when it starts,
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;* from the normal (allocating memory) to the obscure (installing
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;* heartbeat tasks), it should undo them here. If you allocate
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;* anything when you start, you should deallocate it when you
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;* shutdown. Note that this call may be made without a balancing
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;* PrDevStartUp, so be prepared for this instance. For example, do
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;* not try to blindly deallocate a handle that your PrDevStartUp
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;* routine allocates and stores in local storage; if you have not
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;* called PrDevStartUp, there is no telling what will be in your
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;* local storage area.
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;*
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;* Our version of this routine will do nothing.
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;*
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;* Input: none
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;*
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;***********************************************************************
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port_subroutine
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port_return
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rtl
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end ; of PrDevShutDown
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;***********************************************************************
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;*
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PrDevOpen start
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;*
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;* Description:
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;* This call basically prepares the firmware for printing. It
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;* must initialize the firmware for both input and output.
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;* Input is required so the connected printer may be polled
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;* for its status.
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;*
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;* Our version of this routine will display a dialog box (if we
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;* haven't already opened a file) and open the specified file
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;* for output. Since we don't really have a printer that could
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;* respond, I suppose we can't really get it ready for input
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;* (besides that, I don't believe all printer interfaces allow
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;* input - a parallel interface doesn't have input wires from
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;* the printer!)
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;*
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;* Note: We will have to JSL to the completion routine when we
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;* are done! (or RTL if the completion pointer is NIL).
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;*
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;* Input: LONG completion routine pointer
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;* LONG reserved long
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;*
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;***********************************************************************
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using PortData
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port_subroutine (4:reserved,4:completion_routine)
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; Clear the port driver call counter (This counter is used to determine
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; what type of printer driver is calling us).
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stz PortCallCounter
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; Go open the spool files (one for the data, one for the commands)
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jsl >c_port_open
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port_return 0:stump,completion_routine
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cmp #1
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rtl
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end ; of PrDevOpen
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;***********************************************************************
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;*
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PrDevRead start
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;*
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;* Description:
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;* This call reads input from the printer.
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;*
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;* Our version of this routine will return a string based on
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;* what we think the printer driver did:
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;*
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;* ImageWriter: Return Color option
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;* ImageWriter LQ: Return Model ID, Multiple bins and Color options
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;* Unknown: Return nothing (String of zero length)
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;*
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;*
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;* Input: WORD space for result
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;* LONG buffer pointer
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;* WORD number of bytes to transfer
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;*
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;* Output: WORD number of bytes transferred
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;*
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;***********************************************************************
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using PortData
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port_subroutine (2:bytes_to_send,4:buffer,2:bytes_transfered)
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; Dispatch to return the appropriate string (depending on the printer
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; type - we determined the printer type from the last two commands...
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; see the open/write routine comments for details)
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ldx PrinterType
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jmp (ReadDispatch,x)
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; Routine name Printer type
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ReadDispatch anop
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dc a4'ReadUnknown' ; Unknown
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dc a4'ReadIMWR' ; ImageWriter
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dc a4'ReadIMWR_LQ' ; ImageWriter LQ
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; For most printers, there aren't any bytes to be read. Return
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; the standard zero length string.
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ReadUnknown anop
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lda #0
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sta bytes_transfered
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bra read_return
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; Set the output buffer up for a ImageWriter returned string...
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; (IE: Color)
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ReadIMWR anop
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lda ImWr_ReadLen
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sta bytes_transfered
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ldy ImWr_ReadLen
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dey
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ReadIMWR2 anop
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dey
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lda ImWr_Read,y
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sta [buffer],y
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cpy #0
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bne ReadIMWR2
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bra read_return
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; Set the output buffer up for a ImageWriter LQ returned string...
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; (IE: Multiple bins and Color)
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ReadIMWR_LQ anop
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lda ImWr_LQ_ReadLen
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sta bytes_transfered
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ldy ImWr_LQ_ReadLen
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dey
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ReadIMWR_LQ2 anop
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dey
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lda ImWr_LQ_Read,y
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sta [buffer],y
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cpy #0
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bne ReadIMWR_LQ2
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; Back to our caller we go...
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read_return anop
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port_return 2:bytes_transfered
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rtl
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end ; of PrDevRead
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;***********************************************************************
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;*
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PrDevWrite start
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;*
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;* Description:
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;* Writes the data in the buffer to the printer and calls
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;* the completion routine.
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;*
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;* Our version of this routine will copy the information to
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;* our buffer. Once the buffer is full (check before the copy
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;* and if the copy would fill it then only copy what will fill
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;* it). If the buffer is full then write it to the output
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;* file. If there is still stuff to in the input buffer, then
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;* loop to the beginning of this routine again.
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;* Once we're done, its time to call the completion routine.
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;*
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;* Input: LONG write completion pointer
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;* LONG buffer pointer
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;* WORD buffer length
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;*
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;***********************************************************************
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using PortData
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port_subroutine (2:bytes_to_send,4:buffer,4:completion_routine)
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; Lets see if we can determine the type of printer driver (for special
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; printers). We only do this specialness on the first write after an
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; open.
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lda PortCallCounter
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cmp #1
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bne WriteNotSpecial
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bra ttt ; do no specialness stuff
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; Check for an ImageWriter (check length of buffer, then the buffer)
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WriteIMWR anop
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lda bytes_to_send
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cmp ImWr_WriteLen
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bne WriteIMWR_LQ
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ldy ImWr_WriteLen
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dey
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WriteIMWR2 anop
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dey
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lda ImWr_Write,y
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cmp [buffer],y
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bne WriteIMWR_LQ
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cpy #0
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bne WriteIMWR2
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; Looks like and ImageWrite status string to me.
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; Set the special printer flag for later.
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; remove these lines for ImageWriter I.
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lda #PT_ImageWriter
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sta PrinterType
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bra WriteNotSpecial
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; Check for an ImageWriter LQ (check length of buffer, then the buffer)
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WriteIMWR_LQ anop
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lda bytes_to_send
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cmp ImWr_LQ_WriteLen
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bne WriteNotSpecial
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ldy ImWr_LQ_WriteLen
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dey
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WriteIMWR_LQ2 anop
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dey
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lda ImWr_LQ_Write,y
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cmp [buffer],y
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bne WriteNotSpecial
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cpy #0
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bne WriteIMWR_LQ2
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; Looks like and ImageWrite LQ status string to me.
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; Set the special printer flag for later.
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lda #PT_ImageWriterLQ
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sta PrinterType
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; bra WriteNotSpecial
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; Continue with the standard port write
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WriteNotSpecial anop
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; Call the C routine to write the data/command to a file...
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PushWord bytes_to_send
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PushLong buffer
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jsl >c_port_write
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; We're all done - return a success to our caller...
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ttt port_return 0:stump,completion_routine
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cmp #1
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rtl
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end ; of PrDevWrite
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;***********************************************************************
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;*
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PrDevClose start
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;*
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;* Description:
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;*
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;* This call is not required to do anything. However, if
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;* you allocate any system resources with PrDevOpen, you
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;* should deallocate them at this time. As with start and
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;* shutdown, note that PrDevClose could be called without a
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;* balancing PrDevOpen (the reverse is not true), and you
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;* must be prepared for this if you try to deallocate
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;* resources which were never allocated.
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;*
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;* Our version of this routine will close the file (if it
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;* is open). If we find a CANCELLED flag, then we will
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;* just reset the flag.
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;*
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;* Input: none
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;*
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;***********************************************************************
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port_subroutine
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; Attempt to close the data/command files
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;
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; Note: The files may not have been opened!
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jsl >c_port_close
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port_return
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rtl
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end ; of PrDevClose
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;***********************************************************************
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;*
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PrDevStatus start
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;*
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;* Description:
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;*
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;* This call performs differently for direct connect and
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;* network drivers. For direct connect drivers, it currently
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;* has no required function, although it may return the status
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;* of the port in the future. For network drivers, it calls
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;* an AppleTalk status routine, which returns a status string
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;* in the buffer (normally a string like "Status: The print
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;* server is spooling your document").
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;*
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;* Our version of this routine will do nothing.
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;*
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;* Input: LONG status buffer pointer
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;*
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;***********************************************************************
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port_subroutine (4:status)
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port_return
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cmp #1
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rtl
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end ; of PrDevStatus
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|
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;***********************************************************************
|
|
;*
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|
PrDevAsyncRead start
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;*
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;* Description:
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;* Since PrDevRead cannot read asynchronously, this call is
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;* provided for that task. Note that this does nothing for
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;* direct connect drivers, and if the completion pointer is
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;* NIL, it behaves for network drivers exactly as PrDevRead
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;* does.
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;*
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;* Our version of this routine will do nothing.
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;*
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;* Input: WORD space for result
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;* LONG completion pointer
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;* WORD buffer length
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;* LONG buffer pointer
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;*
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;* Output: WORD number of bytes transferred
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;*
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;***********************************************************************
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port_subroutine (4:buffer,2:length,4:cmp_rtn,2:bytes_transfered)
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lda #0
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sta bytes_transfered
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port_return 2:bytes_transfered,cmp_rtn
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cmp #1
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rtl
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end ; of PrDevAsyncRead
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;***********************************************************************
|
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;*
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PrDevWriteBackground start
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;*
|
|
;* Description:
|
|
;* This routine is not implemented at this time.
|
|
;*
|
|
;* Our version of this routine will do nothing.
|
|
;*
|
|
;* Input: LONG completion procedure pointer
|
|
;* WORD buffer length
|
|
;* LONG buffer pointer
|
|
;*
|
|
;***********************************************************************
|
|
|
|
port_subroutine (4:buffer,2:length,4:completion_routine)
|
|
|
|
port_return 0:stump,completion_routine
|
|
cmp #1
|
|
rtl
|
|
|
|
end ; of PrDevWriteBackground
|
|
|
|
|
|
|
|
;***********************************************************************
|
|
;*
|
|
PrPortVer start
|
|
;*
|
|
;* Description:
|
|
;* Returns the version number of the currently installed
|
|
;* port driver.
|
|
;*
|
|
;* Our version of this routine will do nothing.
|
|
;*
|
|
;* Note: The internal version number is stored as a major
|
|
;* byte and a minor byte (i.e., $0103 represents version 1.3)
|
|
;*
|
|
;* Input: WORD space for result
|
|
;*
|
|
;* Output: WORD Port driver's version number
|
|
;*
|
|
;***********************************************************************
|
|
|
|
port_subroutine (2:version_number)
|
|
|
|
lda #$0401 ; Rev 4.1
|
|
sta version_number ; Save it
|
|
|
|
port_return 2:version_number
|
|
rtl
|
|
|
|
end ; of PrPortVer
|
|
|
|
|
|
|
|
;***********************************************************************
|
|
;*
|
|
PrDevIsItSafe start
|
|
;*
|
|
;* Description:
|
|
;* This call checks to see if the port or card which your
|
|
;* driver controls is enabled. It should check at least
|
|
;* the corresponding bit of $E0C02D, and checking the Battery
|
|
;* RAM settings wouldn't hurt any either.
|
|
;*
|
|
;* Our version of this routine will return TRUE - we don't
|
|
;* really drive any port, so we can't really check to see if
|
|
;* we are allowed to access the port/slot or not.
|
|
;*
|
|
;* Input: WORD space for result
|
|
;*
|
|
;* Output: WORD Boolean indicating if port
|
|
;* is enabled
|
|
;*
|
|
;***********************************************************************
|
|
|
|
port_subroutine (2:port_safe_flag)
|
|
|
|
lda #TRUE ; Its always safe...
|
|
sta port_safe_flag ; Save it
|
|
|
|
port_return 2:port_safe_flag
|
|
rtl
|
|
|
|
end ; of PrDevIsItSafe
|
|
|
|
|
|
|
|
;***********************************************************************
|
|
;*
|
|
PortData data
|
|
;*
|
|
;* File Port Driver Data Section
|
|
;*
|
|
;* Description:
|
|
;* This section is all of the data that the file port driver
|
|
;* requires (not very much really...).
|
|
;*
|
|
;***********************************************************************
|
|
|
|
; Special Printer Types
|
|
|
|
PrinterType ds 2
|
|
|
|
|
|
; Count of the Port calls made since an Open
|
|
|
|
PortCallCounter dc i2'0'
|
|
|
|
|
|
; ImageWriter model ID/status/options string (written)
|
|
|
|
ImWr_Write dc i1'$1b,$3f'
|
|
ImWr_WriteLen dc i2'*-ImWr_Write'
|
|
|
|
|
|
; ImageWriter model ID/status/options string (read)
|
|
|
|
ImWr_Read dc i1'$49,$57,$31,$30,$43'
|
|
ImWr_ReadLen dc i2'*-ImWr_Read'
|
|
|
|
|
|
; ImageWriter LQ model ID/status/options string (written)
|
|
|
|
ImWr_LQ_Write dc i1'$1b,$5a,$00,$02,$1b,$3f'
|
|
ImWr_LQ_WriteLen dc i2'*-ImWr_LQ_Write'
|
|
|
|
|
|
; ImageWriter LQ model ID/status/options string (read)
|
|
|
|
ImWr_LQ_Read dc i1'$4c,$51,$31,$45,$43'
|
|
ImWr_LQ_ReadLen dc i2'*-ImWr_LQ_Read'
|
|
|
|
|
|
|
|
end ; End of File Port Driver
|