DriveWorks SDK Reference
5.16.65 Release
For Test and Development only

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
73typedef void (*dwCANInterpreterAddMessageFunc_t)(const dwCANMessage* msg, void* userData);
74
77typedef uint32_t (*dwCANInterpreterGetNumAvailableFunc_t)(void* userData);
78
82typedef bool (*dwCANInterpreterGetSignalInfoFunc_t)(const char8_t** name, dwTrivialDataType* type,
83 dwCANVehicleData* data,
84 uint32_t idx, void* userData);
85
88typedef bool (*dwCANInterpreterGetDataf32Func_t)(float32_t* value, dwTime_t* timestamp_us, uint32_t idx, void* userData);
89
92typedef bool (*dwCANInterpreterGetDataf64Func_t)(float64_t* value, dwTime_t* timestamp_us, uint32_t idx, void* userData);
93
96typedef bool (*dwCANInterpreterGetDatai32Func_t)(int32_t* value, dwTime_t* timestamp_us, uint32_t idx, void* userData);
97
100{
113
115
135 void* userData, dwContextHandle_t context);
136
160 const char8_t* inputDBC,
162
178 const char8_t* dbc,
180
195
196// ------------ encoding
214 const dwCANMessage* msg,
215 dwCANInterpreterHandle_t interpreter);
216
234dwStatus dwCANInterpreter_getSignalNameInMessage(const char8_t** name, uint32_t idx,
235 const dwCANMessage* msg,
236 dwCANInterpreterHandle_t interpreter);
237
254
269 dwCANInterpreterHandle_t interpreter);
270
290dwStatus dwCANInterpreter_encodef32(float32_t value, const char8_t* signal,
291 dwCANMessage* msg,
292 dwCANInterpreterHandle_t interpreter);
293
300dwStatus dwCANInterpreter_encodef64(float64_t value, const char8_t* signal,
301 dwCANMessage* msg,
302 dwCANInterpreterHandle_t interpreter);
303
310dwStatus dwCANInterpreter_encodei32(int32_t value, const char8_t* signal,
311 dwCANMessage* msg,
312 dwCANInterpreterHandle_t interpreter);
313
314// ----------------- consumption
329 dwCANInterpreterHandle_t interpreter);
330
345
365 dwCANInterpreterHandle_t interpreter);
366
379dwStatus dwCANInterpreter_getSignalName(const char8_t** name, uint32_t idx,
380 dwCANInterpreterHandle_t interpreter);
381
396 dwCANInterpreterHandle_t interpreter);
397
412 dwCANInterpreterHandle_t interpreter);
413
434dwStatus dwCANInterpreter_getf32(float32_t* value, dwTime_t* timestamp_us, uint32_t idx, dwCANInterpreterHandle_t interpreter);
435
442dwStatus dwCANInterpreter_getf64(float64_t* value, dwTime_t* timestamp_us, uint32_t idx, dwCANInterpreterHandle_t interpreter);
443
450dwStatus dwCANInterpreter_geti32(int32_t* value, dwTime_t* timestamp_us, uint32_t idx, dwCANInterpreterHandle_t interpreter);
451
452#ifdef __cplusplus
453}
454#endif
456#endif // DW_SENSORS_CANBUS_INTERPRETER_H_
NVIDIA DriveWorks API: CAN
dwStatus
Status definition.
Definition: ErrorDefs.h:44
NVIDIA DriveWorks API: Vehicle Data
NVIDIA DriveWorks API: Core Exports
Holds a CAN package.
Definition: CAN.h:113
float float32_t
Specifies POD types.
Definition: BasicTypes.h:59
int64_t dwTime_t
Specifies a timestamp unit, in microseconds.
Definition: BasicTypes.h:65
double float64_t
Definition: BasicTypes.h:60
struct dwContextObject * dwContextHandle_t
Context handle.
Definition: Context.h:86
#define DW_API_PUBLIC
Definition: Exports.h:56
dwTrivialDataType
Specifies a type indicator of the underlying trivial data type.
Definition: TypesExtra.h:58
dwCANInterpreterGetSignalInfoFunc_t getSignalInfo
getSignalInfo callback function.
Definition: Interpreter.h:106
dwCANInterpreterAddMessageFunc_t addMessage
addMessage callback function.
Definition: Interpreter.h:102
dwCANInterpreterGetDatai32Func_t getDatai32
getDatai32 callback function.
Definition: Interpreter.h:112
dwCANInterpreterGetDataf32Func_t getDataf32
getDataf32 callback function.
Definition: Interpreter.h:108
dwCANInterpreterGetNumAvailableFunc_t getNumAvailableSignals
getNumAvailableSignals callback function.
Definition: Interpreter.h:104
dwCANInterpreterGetDataf64Func_t getDataf64
getDataf64 callback function.
Definition: Interpreter.h:110
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.
Definition: Interpreter.h:77
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, true otherwise For the user-function expected behavior s...
Definition: Interpreter.h:96
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:73
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, true otherwise For the user-function expected behavior...
Definition: Interpreter.h:92
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, true otherwise For the user-function expected behavior...
Definition: Interpreter.h:88
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:82
Interface for callback based CAN data interpreter.
Definition: Interpreter.h:100
dwCANVehicleData
A set of enumeration constants representing the default data signals.
Definition: VehicleData.h:66