home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Almathera Ten Pack 3: CDPD 3
/
Almathera Ten on Ten - Disc 3: CDPD3.iso
/
fish
/
726-750
/
741
/
rkrm_devices
/
rkrm_devices.lha
/
Parallel
/
Parallel.c
< prev
next >
Wrap
C/C++ Source or Header
|
1992-09-03
|
4KB
|
112 lines
/*
* 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* example may not be published in printed form or distributed with any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);
}
}