mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-12-24 23:09:26 -05:00
150 lines
3.7 KiB
C++
150 lines
3.7 KiB
C++
/*
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* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
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* Copyright (C) 2016 Furrtek
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*
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* This file is part of PortaPack.
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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, or (at your option)
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* 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; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#include "bht.hpp"
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#include "portapack.hpp"
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#include "portapack_persistent_memory.hpp"
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#include <cstring>
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#include <stdio.h>
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std::string gen_message_ep(uint8_t city_code, size_t family_code_ep, uint32_t relay_state_A, uint32_t relay_state_B) {
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size_t c;
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const encoder_def_t * um3750_def;
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uint8_t bit[12];
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std::string ep_symbols;
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char ook_bitstream[256];
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char ep_message[13] = { 0 };
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(void)relay_state_B;
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// EP frame
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// Repeated 2x 26 times
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// Whole frame + space = 128ms, data only = 64ms
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um3750_def = &encoder_defs[8];
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for (c = 0; c < 8; c++)
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bit[c] = (city_code >> c) & 1;
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bit[8] = family_code_ep >> 1;
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bit[9] = family_code_ep & 1;
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bit[10] = 0; // R1 first
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if (relay_state_A)
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bit[11] = relay_state_A - 1;
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else
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bit[11] = 0;
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for (c = 0; c < 12; c++)
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ep_message[c] = bit[c] + '0';
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//text_message.set(ep_message);
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c = 0;
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for (auto ch : um3750_def->word_format) {
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if (ch == 'S')
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ep_symbols += um3750_def->sync;
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else
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ep_symbols += um3750_def->bit_format[bit[c++]];
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}
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c = 0;
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for (auto ch : ep_symbols) {
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if (ch != '0')
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ook_bitstream[c >> 3] |= (1 << (7 - (c & 7)));
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c++;
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}
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return ep_message;
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}
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std::string gen_message_xy(size_t header_code_a, size_t header_code_b, size_t city_code, size_t family_code,
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bool subfamily_wc, size_t subfamily_code, bool id_wc, size_t receiver_code,
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size_t relay_state_A, size_t relay_state_B, size_t relay_state_C, size_t relay_state_D) {
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size_t c;
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uint8_t ccir_message[20];
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// Xy CCIR frame
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// Header
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ccir_message[0] = (header_code_a / 10);
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ccir_message[1] = (header_code_a % 10);
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ccir_message[2] = (header_code_b / 10);
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ccir_message[3] = (header_code_b % 10);
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// Addresses
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ccir_message[4] = (city_code / 10);
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ccir_message[5] = (city_code % 10);
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ccir_message[6] = family_code;
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if (subfamily_wc)
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ccir_message[7] = 10; // Wildcard
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else
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ccir_message[7] = subfamily_code;
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if (id_wc) {
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ccir_message[8] = 10; // Wildcard
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ccir_message[9] = 10; // Wildcard
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} else {
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ccir_message[8] = (receiver_code / 10);
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ccir_message[9] = (receiver_code % 10);
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}
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ccir_message[10] = 11; // B
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// Relay states
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ccir_message[11] = relay_state_A;
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ccir_message[12] = relay_state_B;
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ccir_message[13] = relay_state_C;
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ccir_message[14] = relay_state_D;
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ccir_message[15] = 11; // B
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// End
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for (c = 16; c < 20; c++)
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ccir_message[c] = 0;
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// Replace repeats with E code
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for (c = 1; c < 20; c++)
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if (ccir_message[c] == ccir_message[c - 1]) ccir_message[c] = 14;
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// Copy for baseband
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memcpy(shared_memory.bb_data.tones_data.message, ccir_message, 20);
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// Return as text for display
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return ccir_to_ascii(ccir_message);
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}
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std::string ccir_to_ascii(uint8_t * ccir) {
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std::string ascii;
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for (size_t c = 0; c < 20; c++) {
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if (ccir[c] > 9)
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ascii += (char)(ccir[c] - 10 + 'A');
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else
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ascii += (char)(ccir[c] + '0');
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}
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return ascii;
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}
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