Files
mayhem-firmware/firmware/common/pocsag_packet.hpp
VasylSamoilov dd006b4830 POCSAG: decoder fixes, serial output, TX polarity cleanup (#3130)
RX: fix address/batch-boundary handling, add numeric continuation,
add heuristic type detection toggle, pass inverted polarity flag,
stream decoded messages over USB serial.

TX: rename phase to polarity (Standard/Inverted), fix function
validation (&&→||), fix serial shell payload read (offset tracking,
31-byte cap, preserve msglen).

Decoder: remove color escapes from output (plain text for all
consumers), guard count_alpha_fill against empty string, keep
numeric_len across continuation batches.

Serial format: POCSAG <baud> <addr> <func> <pol> <type> "<msg>" hex:<hex>
Quote escaping for embedded " and \\ in alpha messages.
2026-04-10 08:35:43 +02:00

116 lines
2.5 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
};
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 set_inverted(bool inverted) {
inverted_ = inverted;
}
bool inverted() const {
return inverted_;
}
void clear() {
codewords.fill(0);
bitrate_ = 0u;
flag_ = NORMAL;
inverted_ = false;
}
private:
uint16_t bitrate_{0};
PacketFlag flag_{NORMAL};
bool inverted_{false};
batch_t codewords{};
Timestamp timestamp_{};
};
} /* namespace pocsag */
#endif /*__POCSAG_PACKET_H__*/