DriveWorks SDK Reference
5.8.83 Release
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Interpreter.h
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30
46#ifndef DW_SENSORS_CANBUS_INTERPRETER_H_
47#define DW_SENSORS_CANBUS_INTERPRETER_H_
48
49#include <dw/core/base/Config.h>
51
54
56#define DW_SENSORS_CAN_INTERPRETER_MESSAGE_MAX_SIGNALS 128
57
59#define DW_SENSORS_CAN_INTERPRETER_MAX_MESSAGE_NAME_LEN 32
60
62#define DW_SENSORS_CAN_INTERPRETER_MAX_SIGNAL_NAME_LEN 32
63
64#ifdef __cplusplus
65extern "C" {
66#endif
67
69typedef struct dwCANInterpreterObject* dwCANInterpreterHandle_t;
70
72typedef void (*dwCANInterpreterAddMessageFunc_t)(const dwCANMessage* msg, void* userData);
73
75typedef uint32_t (*dwCANInterpreterGetNumAvailableFunc_t)(void* userData);
76
78typedef bool (*dwCANInterpreterGetSignalInfoFunc_t)(const char8_t** name, dwTrivialDataType* type,
79 dwCANVehicleData* data,
80 uint32_t idx, void* userData);
81
83typedef bool (*dwCANInterpreterGetDataf32Func_t)(float32_t* value, dwTime_t* timestamp_us, uint32_t idx, void* userData);
84
86typedef bool (*dwCANInterpreterGetDataf64Func_t)(float64_t* value, dwTime_t* timestamp_us, uint32_t idx, void* userData);
87
89typedef bool (*dwCANInterpreterGetDatai32Func_t)(int32_t* value, dwTime_t* timestamp_us, uint32_t idx, void* userData);
90
93{
101
121 void* userData, dwContextHandle_t context);
122
146 const char8_t* inputDBC,
148
164 const char8_t* dbc,
166
181
182// ------------ encoding
200 const dwCANMessage* msg,
201 dwCANInterpreterHandle_t interpreter);
202
220dwStatus dwCANInterpreter_getSignalNameInMessage(const char8_t** name, uint32_t idx,
221 const dwCANMessage* msg,
222 dwCANInterpreterHandle_t interpreter);
223
239
255 dwCANInterpreterHandle_t interpreter);
256
276dwStatus dwCANInterpreter_encodef32(float32_t value, const char8_t* signal,
277 dwCANMessage* msg,
278 dwCANInterpreterHandle_t interpreter);
279
284dwStatus dwCANInterpreter_encodef64(float64_t value, const char8_t* signal,
285 dwCANMessage* msg,
286 dwCANInterpreterHandle_t interpreter);
287
292dwStatus dwCANInterpreter_encodei32(int32_t value, const char8_t* signal,
293 dwCANMessage* msg,
294 dwCANInterpreterHandle_t interpreter);
295
296// ----------------- consumption
311 dwCANInterpreterHandle_t interpreter);
312
327
347 dwCANInterpreterHandle_t interpreter);
348
361dwStatus dwCANInterpreter_getSignalName(const char8_t** name, uint32_t idx,
362 dwCANInterpreterHandle_t interpreter);
363
378 dwCANInterpreterHandle_t interpreter);
379
394 dwCANInterpreterHandle_t interpreter);
395
416dwStatus dwCANInterpreter_getf32(float32_t* value, dwTime_t* timestamp_us, uint32_t idx, dwCANInterpreterHandle_t interpreter);
417
422dwStatus dwCANInterpreter_getf64(float64_t* value, dwTime_t* timestamp_us, uint32_t idx, dwCANInterpreterHandle_t interpreter);
423
428dwStatus dwCANInterpreter_geti32(int32_t* value, dwTime_t* timestamp_us, uint32_t idx, dwCANInterpreterHandle_t interpreter);
429
430#ifdef __cplusplus
431}
432#endif
434#endif // DW_SENSORS_CANBUS_INTERPRETER_H_
NVIDIA DriveWorks API: CAN
NVIDIA DriveWorks API: Vehicle Data
NVIDIA DriveWorks API: Core Exports
Holds a CAN package.
Definition: CAN.h:113
struct dwContextObject * dwContextHandle_t
Context handle.
Definition: Context.h:82
#define DW_API_PUBLIC
Definition: Exports.h:54
dwStatus
Status definition.
Definition: Status.h:171
float float32_t
Specifies POD types.
Definition: Types.h:70
dwTrivialDataType
Specifies a type indicator of the underlying trivial data type.
Definition: Types.h:103
int64_t dwTime_t
Specifies a timestamp unit, in microseconds.
Definition: Types.h:82
double float64_t
Definition: Types.h:71
dwCANInterpreterGetSignalInfoFunc_t getSignalInfo
Definition: Interpreter.h:96
dwCANInterpreterAddMessageFunc_t addMessage
Definition: Interpreter.h:94
dwCANInterpreterGetDatai32Func_t getDatai32
Definition: Interpreter.h:99
dwCANInterpreterGetDataf32Func_t getDataf32
Definition: Interpreter.h:97
dwCANInterpreterGetNumAvailableFunc_t getNumAvailableSignals
Definition: Interpreter.h:95
dwCANInterpreterGetDataf64Func_t getDataf64
Definition: Interpreter.h:98
DW_API_PUBLIC dwStatus dwCANInterpreter_buildFromDBCString(dwCANInterpreterHandle_t *interpreter, const char8_t *dbc, dwContextHandle_t ctx)
Creates a CAN data interpreter based on DBC file format and initializes the interpreter from a string...
DW_API_PUBLIC dwStatus dwCANInterpreter_encodei32(int32_t value, const char8_t *signal, dwCANMessage *msg, dwCANInterpreterHandle_t interpreter)
Same as dwCANInterpreter_encodef32, but for int32 types.
DW_API_PUBLIC dwStatus dwCANInterpreter_createMessage(dwCANMessage *msg, uint32_t id, dwCANInterpreterHandle_t interpreter)
Initializes an empty can message an interpreter can encoded signals into.
uint32_t(* dwCANInterpreterGetNumAvailableFunc_t)(void *userData)
Gets the number of signals available to be retrieved. The same signal may be available multiple times...
Definition: Interpreter.h:75
DW_API_PUBLIC dwStatus dwCANInterpreter_encodef32(float32_t value, const char8_t *signal, dwCANMessage *msg, dwCANInterpreterHandle_t interpreter)
Encodes a value for a signal into a given message.
DW_API_PUBLIC dwStatus dwCANInterpreter_getSignalName(const char8_t **name, uint32_t idx, dwCANInterpreterHandle_t interpreter)
Gets the name of a signal available for consumption by the application as a string.
DW_API_PUBLIC dwStatus dwCANInterpreter_getSignalRange(float64_t *minimum, float64_t *maximum, uint32_t idx, dwCANInterpreterHandle_t interpreter)
Returns the range of validity of data for a signal available for consumption by the application.
DW_API_PUBLIC dwStatus dwCANInterpreter_getSignalNameInMessage(const char8_t **name, uint32_t idx, const dwCANMessage *msg, dwCANInterpreterHandle_t interpreter)
Gets the name of a signal that the CAN interpreter can encode in the currently active encoded message...
bool(* dwCANInterpreterGetDatai32Func_t)(int32_t *value, dwTime_t *timestamp_us, uint32_t idx, void *userData)
Returns false if no int32 data is available.
Definition: Interpreter.h:89
DW_API_PUBLIC dwStatus dwCANInterpreter_encodef64(float64_t value, const char8_t *signal, dwCANMessage *msg, dwCANInterpreterHandle_t interpreter)
Same as dwCANInterpreter_encodef32, but for float64 types.
void(* dwCANInterpreterAddMessageFunc_t)(const dwCANMessage *msg, void *userData)
Pushes new messages to the interpreter.
Definition: Interpreter.h:72
DW_API_PUBLIC dwStatus dwCANInterpreter_buildFromDBC(dwCANInterpreterHandle_t *interpreter, const char8_t *inputDBC, dwContextHandle_t ctx)
Creates a CAN data interpreter based on DBC file format.
bool(* dwCANInterpreterGetDataf64Func_t)(float64_t *value, dwTime_t *timestamp_us, uint32_t idx, void *userData)
Returns false if no float64 data is available.
Definition: Interpreter.h:86
DW_API_PUBLIC dwStatus dwCANInterpreter_consume(const dwCANMessage *msg, dwCANInterpreterHandle_t interpreter)
Pushes a new message to the interpreter.
DW_API_PUBLIC dwStatus dwCANInterpreter_createMessageFromName(dwCANMessage *msg, const char8_t *msgName, dwCANInterpreterHandle_t interpreter)
Initializes an empty can message an interpreter can encoded signals into.
DW_API_PUBLIC dwStatus dwCANInterpreter_getf64(float64_t *value, dwTime_t *timestamp_us, uint32_t idx, dwCANInterpreterHandle_t interpreter)
Same as dwCANInterpreter_getf32, but for float64 types.
DW_API_PUBLIC dwStatus dwCANInterpreter_geti32(int32_t *value, dwTime_t *timestamp_us, uint32_t idx, dwCANInterpreterHandle_t interpreter)
Same as dwCANInterpreter_getf32, but for int32 types.
struct dwCANInterpreterObject * dwCANInterpreterHandle_t
CAN message interpreter handle.
Definition: Interpreter.h:69
DW_API_PUBLIC dwStatus dwCANInterpreter_buildFromCallbacks(dwCANInterpreterHandle_t *interpreter, dwCANInterpreterInterface callbacks, void *userData, dwContextHandle_t context)
Creates a CAN data interpreter based on user provided callbacks.
DW_API_PUBLIC dwStatus dwCANInterpreter_getNumberSignalsInMessage(uint32_t *num, const dwCANMessage *msg, dwCANInterpreterHandle_t interpreter)
Gets the number of signals a CAN interpreter can encode into the provided message.
DW_API_PUBLIC dwStatus dwCANInterpreter_getNumberSignals(uint32_t *num, dwCANInterpreterHandle_t interpreter)
Gets the number of signals decoded and available for consumption by the application side.
DW_API_PUBLIC dwStatus dwCANInterpreter_getSignalType(dwTrivialDataType *type, uint32_t idx, dwCANInterpreterHandle_t interpreter)
Returns the type of the value of a signal available for consumption by the application.
DW_API_PUBLIC dwStatus dwCANInterpreter_release(dwCANInterpreterHandle_t interpreter)
Closes previously opened interpreter.
bool(* dwCANInterpreterGetDataf32Func_t)(float32_t *value, dwTime_t *timestamp_us, uint32_t idx, void *userData)
Returns false if no float32 data is available.
Definition: Interpreter.h:83
DW_API_PUBLIC dwStatus dwCANInterpreter_getf32(float32_t *value, dwTime_t *timestamp_us, uint32_t idx, dwCANInterpreterHandle_t interpreter)
Gets a 'float32_t' value from the available values.
DW_API_PUBLIC dwStatus dwCANInterpreter_getDataSignalIndex(uint32_t *idx, dwCANVehicleData data, dwCANInterpreterHandle_t interpreter)
Gets the index of a signal of the last consumed message that corresponds to a certain predefined data...
bool(* dwCANInterpreterGetSignalInfoFunc_t)(const char8_t **name, dwTrivialDataType *type, dwCANVehicleData *data, uint32_t idx, void *userData)
Gets the name and type of a signal; the callback must return false if the query fails.
Definition: Interpreter.h:78
Interface for callback based CAN data interpreter.
Definition: Interpreter.h:93
dwCANVehicleData
A set of enumeration constants representing the default data signals.
Definition: VehicleData.h:66