mayhem-firmware/firmware/common/pocsag_packet.hpp
Kyle Reed 31e8019642
POCSAG Processor Rewrite (#1437)
* WIP Refactoring
* WordExtractor building
* Fix buffer sizes and squelch execute
* Move impls to cpp file
* Baud indicator
* WIP new bit extractor
* New approach for bit extraction.
* Code fit and finish
* Fix case on button
* Cleanup
* Adjust rate miss threshold
* Fix count bits error calculation.
2023-09-08 19:41:09 +02:00

107 lines
2.3 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 __POCSAG_PACKET_H__
#define __POCSAG_PACKET_H__
#include <cstdint>
#include <cstddef>
#include <array>
#include "baseband.hpp"
namespace pocsag {
enum BitRate : uint32_t {
UNKNOWN,
FSK512 = 512,
FSK1200 = 1200,
FSK2400 = 2400,
FSK3200 = 3200
};
enum PacketFlag : uint32_t {
NORMAL,
TIMED_OUT,
TOO_LONG
};
/* Number of codewords in a batch. */
constexpr uint8_t batch_size = 16;
using batch_t = std::array<uint32_t, batch_size>;
class POCSAGPacket {
public:
void set_timestamp(const Timestamp& value) {
timestamp_ = value;
}
Timestamp timestamp() const {
return timestamp_;
}
void set(size_t index, uint32_t data) {
if (index < batch_size)
codewords[index] = data;
}
void set(const batch_t& batch) {
codewords = batch;
}
uint32_t operator[](size_t index) const {
return (index < batch_size) ? codewords[index] : 0;
}
void set_bitrate(uint16_t bitrate) {
bitrate_ = bitrate;
}
uint16_t bitrate() const {
return bitrate_;
}
void set_flag(PacketFlag flag) {
flag_ = flag;
}
PacketFlag flag() const {
return flag_;
}
void clear() {
codewords.fill(0);
bitrate_ = 0u;
flag_ = NORMAL;
}
private:
uint16_t bitrate_{0};
PacketFlag flag_{NORMAL};
batch_t codewords{};
Timestamp timestamp_{};
};
} /* namespace pocsag */
#endif /*__POCSAG_PACKET_H__*/