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ysfenc.h
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ysfenc.h
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/*
Copyright (C) 2019 Doug McLain
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef YSF_H
#define YSF_H
const unsigned int YSF_FRAME_LENGTH_BYTES = 120U;
const unsigned char YSF_SYNC_BYTES[] = {0xD4U, 0x71U, 0xC9U, 0x63U, 0x4DU};
const unsigned int YSF_SYNC_LENGTH_BYTES = 5U;
const unsigned int YSF_FICH_LENGTH_BYTES = 25U;
const unsigned char YSF_SYNC_OK = 0x01U;
const unsigned int YSF_CALLSIGN_LENGTH = 10U;
const unsigned char YSF_FI_HEADER = 0x00U;
const unsigned char YSF_FI_COMMUNICATIONS = 0x01U;
const unsigned char YSF_FI_TERMINATOR = 0x02U;
const unsigned char YSF_FI_TEST = 0x03U;
const unsigned char YSF_DT_VD_MODE1 = 0x00U;
const unsigned char YSF_DT_DATA_FR_MODE = 0x01U;
const unsigned char YSF_DT_VD_MODE2 = 0x02U;
const unsigned char YSF_DT_VOICE_FR_MODE = 0x03U;
const unsigned char YSF_CM_GROUP1 = 0x00U;
const unsigned char YSF_CM_GROUP2 = 0x01U;
const unsigned char YSF_CM_INDIVIDUAL = 0x03U;
const unsigned char YSF_MR_DIRECT = 0x00U;
const unsigned char YSF_MR_NOT_BUSY = 0x01U;
const unsigned char YSF_MR_BUSY = 0x02U;
#include "YSFFICH.h"
class YSFEncoder
{
public:
YSFEncoder();
~YSFEncoder();
unsigned char * get_frame(unsigned char *ambe);
unsigned char * get_eot();
void use_hwambe(bool y){ use_hw = y; }
private:
void encode_header(bool eot = 0);
void encode_dv2();
void AMBE2YSF(unsigned char *data);
void generate_vch_vd2(const unsigned char*);
void ysf_scramble(unsigned char *buf, const int len);
void writeDataFRModeData1(const unsigned char* dt, unsigned char* data);
void writeDataFRModeData2(const unsigned char* dt, unsigned char* data);
void writeVDMode2Data(unsigned char* data, const unsigned char* dt);
unsigned char callsign[12];
unsigned char callsign_full[12];
unsigned char gateway[12];
unsigned char m_ysfFrame[200];
unsigned char m_vch[13U];
unsigned char *m_ambe;
unsigned int ysf_cnt;
CYSFFICH fich;
unsigned char ambe_fr[4][24];
unsigned int ambe_a;
unsigned int ambe_b;
unsigned int ambe_c;
bool use_hw;
};
#endif