133 lines
3.7 KiB
C++
133 lines
3.7 KiB
C++
#pragma once
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#include <cstdint>
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#include <functional>
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#include <string>
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#include <vector>
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#include <list>
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namespace esphome {
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namespace dlms_push {
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enum DlmsDataType : uint8_t {
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DLMS_DATA_TYPE_NONE = 0,
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DLMS_DATA_TYPE_ARRAY = 1,
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DLMS_DATA_TYPE_STRUCTURE = 2,
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DLMS_DATA_TYPE_BOOLEAN = 3,
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DLMS_DATA_TYPE_BIT_STRING = 4,
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DLMS_DATA_TYPE_INT32 = 5,
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DLMS_DATA_TYPE_UINT32 = 6,
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DLMS_DATA_TYPE_OCTET_STRING = 9,
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DLMS_DATA_TYPE_STRING = 10,
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DLMS_DATA_TYPE_STRING_UTF8 = 12,
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DLMS_DATA_TYPE_BINARY_CODED_DESIMAL = 13,
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DLMS_DATA_TYPE_INT8 = 15,
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DLMS_DATA_TYPE_INT16 = 16,
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DLMS_DATA_TYPE_UINT8 = 17,
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DLMS_DATA_TYPE_UINT16 = 18,
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DLMS_DATA_TYPE_COMPACT_ARRAY = 19,
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DLMS_DATA_TYPE_INT64 = 20,
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DLMS_DATA_TYPE_UINT64 = 21,
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DLMS_DATA_TYPE_ENUM = 22,
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DLMS_DATA_TYPE_FLOAT32 = 23,
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DLMS_DATA_TYPE_FLOAT64 = 24,
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DLMS_DATA_TYPE_DATETIME = 25,
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DLMS_DATA_TYPE_DATE = 26,
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DLMS_DATA_TYPE_TIME = 27
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};
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// Callback for the hub: OBIS code (e.g. "1.0.1.8.0.255"), numeric value, string value, is_numeric flag
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using DlmsDataCallback = std::function<void(const std::string &obis_code, float float_val, const std::string &str_val, bool is_numeric)>;
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// --- Pattern Matching Enums & Structs ---
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enum class AxdrTokenType : uint8_t {
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EXPECT_TO_BE_FIRST,
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EXPECT_TYPE_EXACT,
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EXPECT_TYPE_U_I_8,
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EXPECT_CLASS_ID_UNTAGGED,
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EXPECT_OBIS6_TAGGED,
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EXPECT_OBIS6_UNTAGGED,
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EXPECT_ATTR8_UNTAGGED,
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EXPECT_VALUE_GENERIC,
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EXPECT_STRUCTURE_N,
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EXPECT_SCALER_TAGGED,
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EXPECT_UNIT_ENUM_TAGGED,
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GOING_DOWN,
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GOING_UP,
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};
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struct AxdrPatternStep {
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AxdrTokenType type;
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uint8_t param_u8_a{0};
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};
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struct AxdrDescriptorPattern {
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std::string name;
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int priority{0};
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std::vector<AxdrPatternStep> steps;
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uint16_t default_class_id{0};
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};
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struct AxdrCaptures {
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uint32_t elem_idx{0};
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uint16_t class_id{0};
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const uint8_t *obis{nullptr};
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DlmsDataType value_type{DlmsDataType::DLMS_DATA_TYPE_NONE};
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const uint8_t *value_ptr{nullptr};
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uint8_t value_len{0};
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bool has_scaler_unit{false};
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int8_t scaler{0};
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uint8_t unit_enum{0};
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};
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class DlmsParser {
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public:
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DlmsParser();
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// Registers a custom parsing pattern from the YAML config
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void register_custom_pattern(const std::string &dsl);
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// Parses the buffer and fires callbacks for each found sensor value
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size_t parse(const uint8_t *buffer, size_t length, DlmsDataCallback callback, bool show_log);
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private:
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void register_pattern_dsl_(const std::string &name, const std::string &dsl, int priority);
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void load_default_patterns_();
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uint8_t read_byte_();
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uint16_t read_u16_();
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uint32_t read_u32_();
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bool test_if_date_time_12b_();
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int get_data_type_size_(DlmsDataType type);
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bool is_value_data_type_(DlmsDataType type);
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bool skip_data_(uint8_t type);
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bool parse_element_(uint8_t type, uint8_t depth = 0);
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bool parse_sequence_(uint8_t type, uint8_t depth = 0);
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bool capture_generic_value_(AxdrCaptures &c);
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bool try_match_patterns_(uint8_t elem_idx);
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bool match_pattern_(uint8_t elem_idx, const AxdrDescriptorPattern &pat, uint8_t &elements_consumed_at_level0);
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void emit_object_(const AxdrDescriptorPattern &pat, const AxdrCaptures &c);
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float data_as_float_(DlmsDataType value_type, const uint8_t *ptr, uint8_t len);
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void data_to_string_(DlmsDataType value_type, const uint8_t *ptr, uint8_t len, char *buffer, size_t max_len);
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void obis_to_string_(const uint8_t *obis, char *buffer, size_t max_len);
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const char *dlms_data_type_to_string_(DlmsDataType vt);
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const uint8_t *buffer_{nullptr};
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size_t buffer_len_{0};
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size_t pos_{0};
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DlmsDataCallback callback_;
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bool show_log_{false};
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size_t objects_found_{0};
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uint8_t last_pattern_elements_consumed_{0};
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std::vector<AxdrDescriptorPattern> patterns_;
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};
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} // namespace dlms_push
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} // namespace esphome
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