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88 lines
2.3 KiB
88 lines
2.3 KiB
#pragma once
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/*
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* Copyright 2017 by Thomas Early, AC2IE
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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// for communicating with the g2 gateway
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#pragma pack(push, 1) // we need to be sure these structures don't have any dead space
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typedef struct pkt_tag {
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unsigned char pkt_id[4];
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unsigned short counter;
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unsigned char flag[2];
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unsigned char nothing2[2];
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union {
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struct {
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unsigned char mycall[8];
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unsigned char rpt[8];
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} spkt;
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struct {
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struct {
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unsigned char icm_id;
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unsigned char dst_rptr_id;
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unsigned char snd_rptr_id;
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unsigned char snd_term_id;
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uint16_t streamid;
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unsigned char ctrl;
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} icm;
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union {
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struct {
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unsigned char flag[3];
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unsigned char rpt1[8];
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unsigned char rpt2[8];
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unsigned char urcall[8];
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unsigned char mycall[8];
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unsigned char sfx[4];
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unsigned char pfcs[2];
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} hdr; // 41 byte header
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struct {
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unsigned char voice[9];
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unsigned char text[3];
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} vasd; // 12 byte voice and slow data
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};
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} vpkt;
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};
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} SPKT;
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#pragma pack(pop)
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#pragma pack(push, 1)
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typedef struct dsvt_tag {
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unsigned char title[4]; // "DSVT"
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unsigned char config; // 0x10 is hdr 0x20 is vasd
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unsigned char flaga[3]; // zeros
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unsigned char id; // 0x20
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unsigned char flagb[3]; // 0x0 0x1 0x1
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unsigned short streamid;
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unsigned char counter; // hdr: 0x80 vsad: framecounter (mod 21)
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union {
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struct {
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unsigned char flag[3];
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unsigned char rpt1[8];
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unsigned char rpt2[8];
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unsigned char urcall[8];
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unsigned char mycall[8];
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unsigned char sfx[4];
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unsigned char pfcs[2];
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} hdr;
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struct {
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unsigned char voice[9];
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unsigned char text[3];
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} vasd;
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};
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} SDSVT;
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#pragma pack(pop)
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