opendbc/can/common_dbc.h

78 lines
1.6 KiB
C++

#pragma once
#include <cstddef>
#include <cstdint>
#include <string>
#include <vector>
struct SignalPackValue {
std::string name;
double value;
};
struct SignalValue {
uint32_t address;
uint64_t ts_nanos;
std::string name;
double value; // latest value
std::vector<double> all_values; // all values from this cycle
};
enum SignalType {
DEFAULT,
COUNTER,
HONDA_CHECKSUM,
TOYOTA_CHECKSUM,
PEDAL_CHECKSUM,
VOLKSWAGEN_MQB_CHECKSUM,
XOR_CHECKSUM,
SUBARU_CHECKSUM,
CHRYSLER_CHECKSUM,
HKG_CAN_FD_CHECKSUM,
};
struct Signal {
std::string name;
int start_bit, msb, lsb, size;
bool is_signed;
double factor, offset;
bool is_little_endian;
SignalType type;
unsigned int (*calc_checksum)(uint32_t address, const Signal &sig, const std::vector<uint8_t> &d);
};
struct Msg {
std::string name;
uint32_t address;
unsigned int size;
std::vector<Signal> sigs;
};
struct Val {
std::string name;
uint32_t address;
std::string def_val;
std::vector<Signal> sigs;
};
struct DBC {
std::string name;
std::vector<Msg> msgs;
std::vector<Val> vals;
};
typedef struct ChecksumState {
int checksum_size;
int counter_size;
int checksum_start_bit;
int counter_start_bit;
bool little_endian;
SignalType checksum_type;
unsigned int (*calc_checksum)(uint32_t address, const Signal &sig, const std::vector<uint8_t> &d);
} ChecksumState;
DBC* dbc_parse(const std::string& dbc_path);
DBC* dbc_parse_from_stream(const std::string &dbc_name, std::istream &stream, ChecksumState *checksum = nullptr, bool allow_duplicate_msg_name=false);
const DBC* dbc_lookup(const std::string& dbc_name);
std::vector<std::string> get_dbc_names();