portapack-mayhem/firmware/baseband/proc_afskrx.hpp
furrtek 950bc2b1d2 AFSK RX works (only Bell202 for now)
AFSK RX always logs to file
Removed frequency and bw settings from modem setup view
Updated binary
Bugfix: Binary display shifted one bit
Bugfix: Frequency manager views freezing if SD card not present
Bugfix: Menuview blinking arrow not showing up at the right position
Bugfix: Freeze if console written to while it's hidden
Broken: LCR TX, needs UI update
2017-09-02 08:28:29 +01:00

104 lines
2.7 KiB
C++

/*
* 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.
*/
#ifndef __PROC_AFSKRX_H__
#define __PROC_AFSKRX_H__
#include "baseband_processor.hpp"
#include "baseband_thread.hpp"
#include "rssi_thread.hpp"
#include "dsp_decimate.hpp"
#include "dsp_demodulate.hpp"
#include "audio_output.hpp"
#include "fifo.hpp"
#include "message.hpp"
class AFSKRxProcessor : public BasebandProcessor {
public:
void execute(const buffer_c8_t& buffer) override;
void on_message(const Message* const message) override;
private:
static constexpr size_t baseband_fs = 3072000;
static constexpr size_t audio_fs = baseband_fs / 8 / 8 / 2;
size_t samples_per_bit { };
enum State {
WAIT_START = 0,
WAIT_STOP,
RECEIVE
};
BasebandThread baseband_thread { baseband_fs, this, NORMALPRIO + 20, baseband::Direction::Receive };
RSSIThread rssi_thread { NORMALPRIO + 10 };
std::array<complex16_t, 512> dst { };
const buffer_c16_t dst_buffer {
dst.data(),
dst.size()
};
std::array<float, 32> audio { };
const buffer_f32_t audio_buffer {
audio.data(),
audio.size()
};
// Array size ok down to 375 bauds (24000 / 375)
std::array<int32_t, 64> delay_line { 0 };
dsp::decimate::FIRC8xR16x24FS4Decim8 decim_0 { };
dsp::decimate::FIRC16xR16x32Decim8 decim_1 { };
dsp::decimate::FIRAndDecimateComplex channel_filter { };
dsp::demodulate::FM demod { };
AudioOutput audio_output { };
State state { };
size_t delay_line_index { };
uint32_t bit_counter { 0 };
uint32_t word_bits { 0 };
uint32_t sample_bits { 0 };
uint32_t phase { }, phase_inc { };
int32_t sample_mixed { }, prev_mixed { }, sample_filtered { }, prev_filtered { };
uint32_t word_length { };
uint32_t word_mask { };
uint32_t trigger_value { };
bool configured { false };
bool wait_start { };
bool bit_value { };
bool trigger_word { };
bool triggered { };
void configure(const AFSKRxConfigureMessage& message);
AFSKDataMessage data_message { false, 0 };
};
#endif/*__PROC_TPMS_H__*/