Add all the files

src/input/api/DSU/DSUMessages.cpp

@@ -0,0 +1,97 @@
+#include "input/api/DSU/DSUMessages.h"
+
+#include <boost/crc.hpp>
+
+constexpr uint32_t kMagicClient = 'CUSD';
+constexpr uint32_t kMagicServer = 'SUSD';
+constexpr uint16_t kProtocolVersion = 1001;
+
+MessageHeader::MessageHeader(uint32_t magic, uint32_t uid)
+	: m_magic(magic), m_protocol_version(kProtocolVersion), m_uid(uid) { }
+
+void MessageHeader::Finalize(size_t size)
+{
+	m_packet_size = (uint16_t)(size - sizeof(MessageHeader));
+	m_crc32 = CRC32(size);
+}
+
+uint32_t MessageHeader::CRC32(size_t size) const
+{
+	const auto tmp = m_crc32;
+	m_crc32 = 0;
+
+	boost::crc_32_type crc;
+	crc.process_bytes(this, size);
+	const auto result = crc.checksum();
+
+	m_crc32 = tmp;
+	return result;
+}
+
+bool MessageHeader::IsClientMessage() const { return m_magic == kMagicClient; }
+bool MessageHeader::IsServerMessage() const { return m_magic == kMagicServer; }
+
+Message::Message(uint32_t magic, uint32_t uid, MessageType type)
+	: MessageHeader(magic, uid), m_message_type(type)
+{
+	
+}
+
+ClientMessage::ClientMessage(uint32_t uid, MessageType message_type)
+	: Message(kMagicClient, uid, message_type) { }
+
+VersionRequest::VersionRequest(uint32_t uid)
+	: ClientMessage(uid, MessageType::Version)
+{
+	Finalize(sizeof(VersionRequest));
+}
+
+ListPorts::ListPorts(uint32_t uid, uint32_t num_pads_requests, const std::array<uint8_t, 4>& request_indices)
+	: ClientMessage(uid, MessageType::Information), m_count(num_pads_requests), m_indices(request_indices)
+{
+	Finalize(sizeof(ListPorts));
+}
+
+DataRequest::DataRequest(uint32_t uid)
+	: ClientMessage(uid, MessageType::Data), m_reg_flags(RegisterFlag::AllPads), m_index(0), m_mac_address({})
+{
+	Finalize(sizeof(DataRequest));
+}
+
+DataRequest::DataRequest(uint32_t uid, uint8_t index)
+	: ClientMessage(uid, MessageType::Data), m_reg_flags(RegisterFlag::Index), m_index(index), m_mac_address({})
+{
+	Finalize(sizeof(DataRequest));
+}
+
+DataRequest::DataRequest(uint32_t uid, const MACAddress_t& mac_address)
+	: ClientMessage(uid, MessageType::Data), m_reg_flags(RegisterFlag::MACAddress), m_index(0), m_mac_address(mac_address)
+{
+	Finalize(sizeof(DataRequest));
+}
+
+DataRequest::DataRequest(uint32_t uid, uint8_t index, const MACAddress_t& mac_address)
+	: ClientMessage(uid, MessageType::Data), m_reg_flags(RegisterFlag::Index | RegisterFlag::MACAddress), m_index(index), m_mac_address(mac_address)
+{
+	Finalize(sizeof(DataRequest));
+}
+
+bool ServerMessage::ValidateCRC32(size_t size) const
+{
+	return GetCRC32() == CRC32(size);
+}
+
+bool VersionResponse::IsValid() const
+{
+	return ValidateCRC32(sizeof(VersionResponse));
+}
+
+bool PortInfo::IsValid() const
+{
+	return ValidateCRC32(sizeof(PortInfo));
+}
+
+bool DataResponse::IsValid() const
+{
+	return ValidateCRC32(sizeof(DataResponse));
+}