d398a6ced2
- CitrineOS core extracted (CSMS OCPP 2.0.1) - OpenOCPP extracted (firmware OCPP 1.6J/2.0.1) - ShapeShifter library installed (pip install -e) - ShapeShifter specification extracted - EVerest extracted TODO updated with progress
52 lines
1.5 KiB
C++
52 lines
1.5 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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// Copyright 2020 - 2025 Pionix GmbH and Contributors to EVerest
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/*
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This is an implementation for the SLIP serial protocol
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*/
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#ifndef SLIP_PROTOCOL
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#define SLIP_PROTOCOL
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#include <cstdint>
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#include <everest/crc/crc.hpp>
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#include <everest/logging.hpp>
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namespace slip_protocol {
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constexpr int SLIP_START_END_FRAME = 0xC0;
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constexpr int SLIP_BROADCAST_ADDR = 0xFF;
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constexpr std::uint16_t SLIP_SIZE_ON_ERROR = 1;
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constexpr std::int8_t SLIP_ERROR_SIZE_ERROR = -1;
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constexpr std::int8_t SLIP_ERROR_MALFORMED = -2;
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constexpr std::int8_t SLIP_ERROR_CRC_MISMATCH = -3;
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enum class SlipReturnStatus : std::int8_t {
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SLIP_ERROR_CRC_MISMATCH = -3,
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SLIP_ERROR_MALFORMED = -2,
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SLIP_ERROR_SIZE_ERROR = -1,
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SLIP_OK = 0,
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SLIP_ERROR_UNINITIALIZED = 1
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};
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class SlipProtocol {
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public:
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std::vector<std::uint8_t> package_single(std::uint8_t address, std::vector<std::uint8_t>& payload);
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std::vector<std::uint8_t> package_multi(std::uint8_t address,
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const std::vector<std::vector<std::uint8_t>>& multi_payload);
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SlipReturnStatus unpack(std::vector<std::uint8_t>& message, std::uint8_t listen_to_address);
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auto get_message_counter() const {
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return message_counter;
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}
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std::vector<std::uint8_t> retrieve_single_message();
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private:
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std::vector<std::vector<std::uint8_t>> message_queue;
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std::uint8_t message_counter{0};
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};
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} // namespace slip_protocol
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#endif // SLIP_PROTOCOL
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