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Morse TX foxhunt codes are working

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furrtek 2017-02-13 23:24:42 +00:00
parent 4e8980e5d8
commit 6c86ad1b72
8 changed files with 330 additions and 182 deletions
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firmware/common/morse.cpp Normal file
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/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
*
* This file is part of PortaPack.
*
* 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 2, 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "morse.hpp"
#include "baseband_api.hpp"
#include "portapack.hpp"
using namespace portapack;
#include "utility.hpp"
namespace morse {
// Returns 0 if message is too long
size_t morse_encode(std::string& message, const uint32_t time_unit_ms, const uint32_t tone) {
size_t i, c;
uint8_t code, code_size;
uint8_t morse_message[256];
ToneDef * tone_defs = shared_memory.bb_data.tones_data.tone_defs;
i = 0;
for (char& ch : message) {
if ((ch >= 'a') && (ch <= 'z')) // Make uppercase
ch -= 32;
if ((ch >= 'A') && (ch <= 'Z')) {
code = morse_ITU[ch - 'A' + 10];
} else if ((ch >= '0') && (ch <= '9')) {
code = morse_ITU[ch - '0'];
} else {
ch = ' '; // Default to space char
code = 0;
}
if (ch == ' ') {
if (i)
morse_message[i - 1] = 4; // Word space
} else {
code_size = code & 7;
for (c = 0; c < code_size; c++) {
morse_message[i++] = ((code << c) & 0x80) ? 1 : 0; // Dot/dash
morse_message[i++] = 2; // Symbol space
}
morse_message[i - 1] = 3; // Letter space
}
}
if (i > 256) return 0;
memcpy(shared_memory.bb_data.tones_data.message, morse_message, i);
// Setup tone "symbols"
tone_defs[0].delta = TONES_F2D(tone); // 0: Dot
tone_defs[0].duration = (TONES_SAMPLERATE * MORSE_DOT * time_unit_ms) / 1000;
tone_defs[1].delta = TONES_F2D(tone); // 1: Dash
tone_defs[1].duration = (TONES_SAMPLERATE * MORSE_DASH * time_unit_ms) / 1000;
tone_defs[2].delta = 0; // 2: Symbol space
tone_defs[2].duration = (TONES_SAMPLERATE * MORSE_SYMBOL_SPACE * time_unit_ms) / 1000;
tone_defs[3].delta = 0; // 3: Letter space
tone_defs[3].duration = (TONES_SAMPLERATE * MORSE_LETTER_SPACE * time_unit_ms) / 1000;
tone_defs[4].delta = 0; // 4: Word space
tone_defs[4].duration = (TONES_SAMPLERATE * MORSE_WORD_SPACE * time_unit_ms) / 1000;
return i;
}
} /* namespace morse */