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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- * example may not be published in printed form or distributed with any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.
- *
- ***************************************************************************
- *
- * V36_Device_Use.c
- *
- * This is an example of using the serial device.
- * First, we will attempt to create a message port with CreateMsgPort()
- * Next, we will attempt to create the IORequest with CreateIORequest()
- * Then, we will attempt to open the serial device with OpenDevice()
- * If successful, we will send the SDCMD_QUERY command to it
- * and reverse our steps.
- * If we encounter an error at any time, we will gracefully exit.
- *
- * Compile with SAS C 5.10 lc -cfistq -v -y -L
- *
- * Requires Kickstart V36 or greater.
- *
- * Run from CLI only
- */
-
- #include <exec/types.h>
- #include <exec/memory.h>
- #include <exec/io.h>
- #include <exec/libraries.h>
- #include <devices/serial.h>
-
- #include <clib/exec_protos.h>
- #include <clib/alib_protos.h>
-
- #include <stdio.h>
-
- #ifdef LATTICE
- int CXBRK(void) { return(0); } /* Disable SAS CTRL/C handling */
- int chkabort(void) { return(0); } /* really */
- #endif
-
- extern struct Library *SysBase; /* Use this to check the OS version number */
-
- void main(void)
- {
- struct MsgPort *SerialMP; /* pointer to our message port */
- struct IOExtSer *SerialIO; /* pointer to our IORequest */
-
- /* Check the version of the operating system */
- if(SysBase->lib_Version>=36)
- {
- /* Create the message port */
- if (SerialMP=CreateMsgPort())
- {
- /* Create the IORequest */
- if (SerialIO = CreateIORequest(SerialMP,sizeof(struct IOExtSer)))
- {
- /* Open the serial device */
- if (OpenDevice(SERIALNAME,0,(struct IORequest *)SerialIO,0L))
-
- /* Inform user that it could not be opened */
- printf("Error: %s did not open\n",SERIALNAME);
- else
- {
- /* device opened, send query command to it */
- SerialIO->IOSer.io_Command = SDCMD_QUERY;
- if (DoIO((struct IORequest *)SerialIO))
-
- /* Inform user that query failed */
- printf("Query failed. Error - %d\n",SerialIO->IOSer.io_Error);
- else
- /* Print serial device status - see include file for meaning */
- printf("\n\tSerial device status: %x\n\n",SerialIO->io_Status);
-
- /* Close the serial device */
- CloseDevice((struct IORequest *)SerialIO);
- }
- /* Delete the IORequest */
- DeleteIORequest(SerialIO);
- }
- else
- /* Inform user that the IORequest could be created */
- printf("Error: Could create IORequest\n");
-
- /* Delete the message port */
- DeleteMsgPort(SerialMP);
- }
- else
- /* Inform user that the message port could not be created */
- printf("Error: Could not create message port\n");
- }
- else
- printf("Error: Release 2 (V36) or a later version of the OS is required.\n");
- }
-