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bfe1f7bd17
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com> Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> Co-authored-by: J. Nick Koston <nick@home-assistant.io>
47 lines
1.7 KiB
C++
47 lines
1.7 KiB
C++
#pragma once
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#include <array>
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#include <cstdint>
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#include <cstddef>
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#include <vector>
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#include "esphome/components/pzem6l24/pzem6l24.h"
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namespace esphome::pzem6l24::testing {
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// The request PDU update() puts on the wire: read 64 input registers from 0x0000.
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static constexpr uint8_t READ_REQUEST_PDU[] = {0x04, 0x00, 0x00, 0x00, PZEM_REGISTER_COUNT};
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// The request PDU reset_energy() puts on the wire for every phase.
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static constexpr auto RESET_REQUEST_PDU = build_reset_pdu(RESET_PHASE_ALL);
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// Builds the 128-byte register payload the meter returns, writing each quantity in the
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// little-endian byte order documented in pzem6l24.cpp's register map.
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class PayloadBuilder {
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public:
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PayloadBuilder &u8(size_t offset, uint8_t value) {
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this->data_[offset] = value;
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return *this;
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}
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PayloadBuilder &u16(size_t offset, uint16_t value) {
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this->data_[offset] = static_cast<uint8_t>(value & 0xFF);
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this->data_[offset + 1] = static_cast<uint8_t>(value >> 8);
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return *this;
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}
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PayloadBuilder &u32(size_t offset, uint32_t value) {
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this->u16(offset, static_cast<uint16_t>(value & 0xFFFF));
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this->u16(offset + 2, static_cast<uint16_t>(value >> 16));
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return *this;
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}
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PayloadBuilder &i32(size_t offset, int32_t value) { return this->u32(offset, static_cast<uint32_t>(value)); }
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// Wraps the payload in a read-input-registers response PDU: function code, byte count, data.
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std::vector<uint8_t> response_pdu() const {
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std::vector<uint8_t> pdu{0x04, static_cast<uint8_t>(PZEM_PAYLOAD_SIZE)};
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pdu.insert(pdu.end(), this->data_.begin(), this->data_.end());
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return pdu;
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}
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protected:
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std::array<uint8_t, PZEM_PAYLOAD_SIZE> data_{};
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};
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} // namespace esphome::pzem6l24::testing
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