mayhem-firmware/firmware/common/message.hpp

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/*
* Copyright (C) 2015 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 __MESSAGE_H__
#define __MESSAGE_H__
#include <cstdint>
#include <cstddef>
#include <array>
#include <functional>
#include "utility.hpp"
#include "ch.h"
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class Message {
public:
static constexpr size_t MAX_SIZE = 276;
enum class ID : uint32_t {
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/* Assign consecutive IDs. IDs are used to index array. */
RSSIStatistics = 0,
BasebandStatistics = 1,
ChannelStatistics = 2,
ChannelSpectrum = 3,
AudioStatistics = 4,
BasebandConfiguration = 5,
TPMSPacket = 6,
Shutdown = 8,
AISPacket = 7,
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MAX
};
constexpr Message(
ID id
) : id { id }
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{
}
const ID id;
};
struct RSSIStatistics {
uint32_t accumulator { 0 };
uint32_t min { 0 };
uint32_t max { 0 };
uint32_t count { 0 };
};
class RSSIStatisticsMessage : public Message {
public:
constexpr RSSIStatisticsMessage(
) : Message { ID::RSSIStatistics },
statistics { }
{
}
RSSIStatistics statistics;
};
struct BasebandStatistics {
uint32_t idle_ticks { 0 };
uint32_t main_ticks { 0 };
uint32_t rssi_ticks { 0 };
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uint32_t baseband_ticks { 0 };
bool saturation { false };
};
class BasebandStatisticsMessage : public Message {
public:
constexpr BasebandStatisticsMessage(
) : Message { ID::BasebandStatistics },
statistics { }
{
}
BasebandStatistics statistics;
};
struct ChannelStatistics {
int32_t max_db;
size_t count;
constexpr ChannelStatistics(
) : max_db { -120 },
count { 0 }
{
}
constexpr ChannelStatistics(
int32_t max_db,
size_t count
) : max_db { max_db },
count { count }
{
}
};
class ChannelStatisticsMessage : public Message {
public:
constexpr ChannelStatisticsMessage(
) : Message { ID::ChannelStatistics },
statistics { }
{
}
ChannelStatistics statistics;
};
struct AudioStatistics {
int32_t rms_db;
int32_t max_db;
size_t count;
constexpr AudioStatistics(
) : rms_db { -120 },
max_db { -120 },
count { 0 }
{
}
constexpr AudioStatistics(
int32_t rms_db,
int32_t max_db,
size_t count
) : rms_db { rms_db },
max_db { max_db },
count { count }
{
}
};
class AudioStatisticsMessage : public Message {
public:
constexpr AudioStatisticsMessage(
) : Message { ID::AudioStatistics },
statistics { }
{
}
AudioStatistics statistics;
};
struct BasebandConfiguration {
int32_t mode;
uint32_t sampling_rate;
size_t decimation_factor;
};
class BasebandConfigurationMessage : public Message {
public:
constexpr BasebandConfigurationMessage(
BasebandConfiguration configuration
) : Message { ID::BasebandConfiguration },
configuration(configuration)
{
}
BasebandConfiguration configuration;
};
struct ChannelSpectrum {
std::array<uint8_t, 256> db { { 0 } };
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size_t db_count { 256 };
uint32_t sampling_rate { 0 };
uint32_t channel_filter_pass_frequency { 0 };
uint32_t channel_filter_stop_frequency { 0 };
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};
class ChannelSpectrumMessage : public Message {
public:
constexpr ChannelSpectrumMessage(
) : Message { ID::ChannelSpectrum }
{
}
ChannelSpectrum spectrum;
};
#include <bitset>
struct AISPacket {
std::bitset<1024> payload;
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size_t bits_received;
AISPacket(
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) : bits_received { 0 }
{
}
};
class AISPacketMessage : public Message {
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public:
AISPacketMessage(
) : Message { ID::AISPacket }
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{
}
AISPacket packet;
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};
struct TPMSPacket {
std::bitset<1024> payload;
size_t bits_received;
TPMSPacket(
) : bits_received { 0 }
{
}
};
class TPMSPacketMessage : public Message {
public:
TPMSPacketMessage(
) : Message { ID::TPMSPacket }
{
}
TPMSPacket packet;
};
class ShutdownMessage : public Message {
public:
constexpr ShutdownMessage(
) : Message { ID::Shutdown }
{
}
};
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class MessageHandlerMap {
public:
using MessageHandler = std::function<void(Message* const p)>;
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void register_handler(const Message::ID id, MessageHandler&& handler) {
if( map_[toUType(id)] != nullptr ) {
chDbgPanic("MsgDblReg");
}
map_[toUType(id)] = std::move(handler);
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}
void unregister_handler(const Message::ID id) {
map_[toUType(id)] = nullptr;
}
void send(Message* const message) {
if( message->id < Message::ID::MAX ) {
auto& fn = map_[toUType(message->id)];
if( fn ) {
fn(message);
}
}
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}
private:
using MapType = std::array<MessageHandler, toUType(Message::ID::MAX)>;
MapType map_;
};
#endif/*__MESSAGE_H__*/