mirror of
https://github.com/eried/portapack-mayhem.git
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94 lines
2.5 KiB
C++
94 lines
2.5 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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#ifndef __PROC_DTMFTX_H__
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#define __PROC_DTMFTX_H__
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#include "baseband_processor.hpp"
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#include "baseband_thread.hpp"
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#define DTMF_PHASEINC 436.91 // (65536*1024)/1536000*10
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#define DTMF_C0 (uint32_t)(1209*DTMF_PHASEINC)
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#define DTMF_C1 (uint32_t)(1336*DTMF_PHASEINC)
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#define DTMF_C2 (uint32_t)(1477*DTMF_PHASEINC)
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#define DTMF_C3 (uint32_t)(1633*DTMF_PHASEINC)
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#define DTMF_R0 (uint32_t)(697*DTMF_PHASEINC)
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#define DTMF_R1 (uint32_t)(770*DTMF_PHASEINC)
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#define DTMF_R2 (uint32_t)(852*DTMF_PHASEINC)
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#define DTMF_R3 (uint32_t)(941*DTMF_PHASEINC)
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class DTMFTXProcessor : public BasebandProcessor {
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public:
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void execute(const buffer_c8_t& buffer) override;
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void on_message(const Message* const msg) override;
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private:
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bool configured = false;
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BasebandThread baseband_thread { 1536000, this, NORMALPRIO + 20, baseband::Direction::Transmit };
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// 0123456789ABCD#*
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const uint32_t DTMF_LUT[16][2] = {
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{ DTMF_C1, DTMF_R3 },
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{ DTMF_C0, DTMF_R0 },
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{ DTMF_C1, DTMF_R0 },
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{ DTMF_C2, DTMF_R0 },
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{ DTMF_C0, DTMF_R1 },
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{ DTMF_C1, DTMF_R1 },
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{ DTMF_C2, DTMF_R1 },
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{ DTMF_C0, DTMF_R2 },
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{ DTMF_C1, DTMF_R2 },
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{ DTMF_C2, DTMF_R2 },
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{ DTMF_C3, DTMF_R0 },
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{ DTMF_C3, DTMF_R1 },
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{ DTMF_C3, DTMF_R2 },
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{ DTMF_C3, DTMF_R3 },
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{ DTMF_C2, DTMF_R3 },
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{ DTMF_C0, DTMF_R3 }
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};
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uint32_t tone_length, pause_length;
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uint32_t as, bw;
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uint8_t tone_idx = 0, tone_code = 0;
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uint32_t timer = 0;
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bool tone = false; // Tone / pause
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int8_t re, im;
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int8_t sample;
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//int16_t audio_data[64];
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/*const buffer_s16_t preview_audio_buffer {
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audio_data,
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sizeof(int16_t)*64
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};*/
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TXDoneMessage txdone_message;
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uint32_t tone_a_phase, tone_b_phase, phase, sphase;
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int32_t frq;
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};
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#endif
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