mayhem-firmware/firmware/baseband/proc_fsk.hpp
Jared Boone 0789d50fdf Rework BitHistory, BitPattern, PacketBuilder.
Templatize PacketBuilder to optionally bit unstuff, and have flexible packet termination behavior.
2015-11-09 14:38:09 -08:00

75 lines
2.1 KiB
C++

/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
*
* 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_FSK_H__
#define __PROC_FSK_H__
#include "baseband_processor.hpp"
#include "channel_decimator.hpp"
#include "matched_filter.hpp"
#include "clock_recovery.hpp"
#include "symbol_coding.hpp"
#include "packet_builder.hpp"
#include "message.hpp"
#include <cstdint>
#include <cstddef>
#include <bitset>
class FSKProcessor : public BasebandProcessor {
public:
using payload_t = std::bitset<1024>;
FSKProcessor(MessageHandlerMap& message_handlers);
~FSKProcessor();
void configure(const FSKConfiguration new_configuration);
void execute(buffer_c8_t buffer) override;
private:
ChannelDecimator decimator;
dsp::matched_filter::MatchedFilter mf;
clock_recovery::ClockRecovery<clock_recovery::FixedErrorFilter> clock_recovery {
[this](const float symbol) { this->consume_symbol(symbol); }
};
symbol_coding::NRZIDecoder nrzi_decode;
PacketBuilder<BitPattern, BitPattern, BitPattern> packet_builder {
{ 0b0101010101111110, 16, 1 },
{ 0b111110, 6 },
{ 0b01111110, 8 },
[this](const payload_t& payload, const size_t bits_received) {
this->payload_handler(payload, bits_received);
}
};
MessageHandlerMap& message_handlers;
void consume_symbol(const float symbol);
void payload_handler(const payload_t& payload, const size_t bits_received);
};
#endif/*__PROC_FSK_H__*/