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/*
* DIS/x : An implementation of the IEEE 1278.1 protocol
*
* Copyright (C) 1996, Riley Rainey (rainey@netcom.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of either:
*
* a) the GNU Library General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your
* option) any later version. A description of the terms and conditions
* of the GLPL may be found in the "COPYING.LIB" file.
*
* b) the "Artistic License" which comes with this Kit. Information
* about this license may be found in the "Artistic" file.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License or the Artistic License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Information describing how to contact the author can be found in the
* README file.
*/
#include <dis/dis.h>
#include <simmgr.h>
#include <stdio.h>
/*
* This table defines the correct protocol family based on the pdu type
*/
static unsigned char pdu_family[256] =
{
0, 1, 2, 2, 1, 3, 3, 3, 3, 3, 3, 5, 5, 5, 5, 5, /* 0..15 */
5, 5, 5, 5, 5, 5, 5, 6, 6, 4, 4, 0, 0, 0, 0, 0, /* 16..31 */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 32..47 */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 48..63 */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 64..79 */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 80..95 */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 96..111 */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 112..127 */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 128..143 */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 144..159 */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 160..175 */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 176..191 */
};
static int protocol_version = DISProtocolVersionIEEE1278_95;
int
DISxSetProtocolVersion(int version)
{
int result = protocol_version;
protocol_version = version;
return result;
}
int
DISxSetPDUProtocolFamily (int pdu_type, int protocol_family)
{
int result;
if (pdu_type < 0 || pdu_type > 255) {
return -1;
}
result = pdu_family[pdu_type];
pdu_family[pdu_type] = protocol_family;
return result;
}
int DISxPortNumber = -1;
DISxApplicationInfo *
DISxInitializeApplication(unsigned int exercise_id,
unsigned int site_id,
unsigned int application_id)
{
char name[64];
int result;
DISxApplicationInfo *p = (DISxApplicationInfo *)
malloc(sizeof(DISxApplicationInfo));
if (!p) {
return p;
}
p->hdr.protocol_version = protocol_version;
p->hdr.exercise_id = exercise_id;
p->hdr.padding = 0;
p->last_event = 0;
p->last_entity = 0;
p->last_request = 0;
p->xcvr = DISOpenTransceiver(DISxPortNumber);
if (!p->xcvr) {
free(p);
return NULL;
}
if (DISSetNBIOState(p->xcvr, 1) != 0) {
free(p);
return NULL;
}
if (site_id != 0 && application_id != 0) {
p->id.site_id = site_id;
p->id.application_id = application_id;
result = SIMx_SUCCESS;
}
else {
/*
* if the site_id is zero, then the site name can be looked-up
*/
if (site_id == 0) {
SIMxGetSiteName(name, sizeof(name));
}
else {
sprintf(name, "0x%x", site_id);
}
result = SIMxRegisterApplication((char *) NULL,
name, application_id, &p->id);
}
return (result == SIMx_SUCCESS) ? p : NULL;
}
void
DISxGetSimulationAddress(DISxApplicationInfo * info,
dis_simulation_addr * p)
{
*p = info->id;
}
void
DISxSetExerciseID(DISxApplicationInfo * info,
int id)
{
info->hdr.exercise_id = id;
}
int
DISxWritePDU(DISxApplicationInfo * info, dis_pdu * p)
{
p->hdr.protocol_version = info->hdr.protocol_version;
p->hdr.exercise_id = info->hdr.exercise_id;
p->hdr.protocol_family = pdu_family[p->hdr.pdu_type];
/* don't set time here until there is a function to set
the value (time) and type (relative/absolute) of the time
in the DISx library
DISGetTimestamp(&p->hdr.time_stamp); */
return DISWritePDU(info->xcvr, p);
}
int
DISxReadPDU(DISxApplicationInfo * info, dis_pdu * p)
{
return DISReadPDU(info->xcvr, p);
}
void
DISxCloseApplication(DISxApplicationInfo * info)
{
DISCloseTransceiver(info->xcvr);
free(info);
}
dis_request_id
DISxIssueRequestID( DISxApplicationInfo * info )
{
dis_request_id result;
result = ++info->last_request;
if ( info->last_request == 0xfffffff ) {
info->last_request = 0;
}
return result;
}
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