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- /*
- * Copyright (c) 1992 Commodore-Amiga, Inc.
- *
- * This example is provided in electronic form by Commodore-Amiga, Inc. for
- * use with the "Amiga ROM Kernel Reference Manual: Devices", 3rd Edition,
- * published by Addison-Wesley (ISBN 0-201-56775-X).
- *
- * The "Amiga ROM Kernel Reference Manual: Devices" contains additional
- * information on the correct usage of the techniques and operating system
- * functions presented in these examples. The source and executable code
- * of these examples may only be distributed in free electronic form, via
- * bulletin board or as part of a fully non-commercial and freely
- * redistributable diskette. Both the source and executable code (including
- * comments) must be included, without modification, in any copy. This
- * example may not be published in printed form or distributed with any
- * commercial product. However, the programming techniques and support
- * routines set forth in these examples may be used in the development
- * of original executable software products for Commodore Amiga computers.
- *
- * All other rights reserved.
- *
- * This example is provided "as-is" and is subject to change; no
- * warranties are made. All use is at your own risk. No liability or
- * responsibility is assumed.
- *
- **************************************************************************
- *
- * Parallel.c
- *
- * Parallel device example
- *
- * Compile with SAS C 5.10: LC -b1 -cfistq -v -y -L
- *
- * Run from CLI only
- */
-
- #include <exec/types.h>
- #include <exec/io.h>
- #include <exec/memory.h>
- #include <dos/dos.h>
- #include <devices/parallel.h>
-
- #include <clib/exec_protos.h>
- #include <clib/alib_protos.h>
-
- #include <stdio.h>
-
- #ifdef LATTICE
- int CXBRK(void) { return(0); } /* Disable Lattice CTRL/C handling */
- int chkabort(void) { return(0); } /* really */
- #endif
-
- VOID main(VOID);
-
- VOID main(VOID)
- {
- struct MsgPort *ParallelMP; /* Define storage for one pointer */
- struct IOExtPar *ParallelIO; /* Define storage for one pointer */
- ULONG WaitMask; /* Collect all signals here */
- ULONG Temp; /* Hey, we all need pockets :-) */
-
- if (ParallelMP=CreatePort(0,0) )
- {
- if (ParallelIO=(struct IOExtPar *)
- CreateExtIO(ParallelMP,sizeof(struct IOExtPar)) )
- {
- if (OpenDevice(PARALLELNAME,0L,(struct IORequest *)ParallelIO,0) )
- printf("%s did not open\n",PARALLELNAME);
- else
- {
- /* Precalculate a wait mask for the CTRL-C, CTRL-F and message port
- * signals. When one or more signals are received, Wait() will
- * return. Press CTRL-C to exit the example. Press CTRL-F to
- * wake up the example without doing anything. NOTE: A signal
- * may show up without an associated message!
- */
- WaitMask = SIGBREAKF_CTRL_C | SIGBREAKF_CTRL_F |
- 1L << ParallelMP->mp_SigBit;
-
- ParallelIO->IOPar.io_Command = CMD_WRITE;
- ParallelIO->IOPar.io_Length = -1;
- ParallelIO->IOPar.io_Data = (APTR)"Hey, Jude!\r\n";
- SendIO(ParallelIO); /* execute write */
-
- printf("Sleeping until CTRL-C, CTRL-F, or write finish\n");
- while(1)
- {
- Temp = Wait(WaitMask);
- printf("Just woke up (YAWN!)\n");
-
- if (SIGBREAKF_CTRL_C & Temp)
- break;
-
- if (CheckIO(ParallelIO) ) /* If request is complete... */
- {
- WaitIO(ParallelIO); /* clean up and remove reply */
- printf("%ld bytes sent\n",ParallelIO->IOPar.io_Actual);
- break;
- }
- }
-
- AbortIO(ParallelIO); /* Ask device to abort request, if pending */
- WaitIO(ParallelIO); /* Wait for abort, then clean up */
-
- CloseDevice((struct IORequest *)ParallelIO);
- }
- DeleteExtIO(ParallelIO);
- }
- DeletePort(ParallelMP);
- }
- }
-