DriveWorks SDK Reference
3.0.4260 Release
For Test and Development only

Interpreter.h
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30 
48 #ifndef DW_SENSORS_CANBUS_INTERPRETER_H_
49 #define DW_SENSORS_CANBUS_INTERPRETER_H_
50 
51 #include <dw/core/Config.h>
52 #include <dw/core/Exports.h>
53 
54 #include <dw/sensors/canbus/CAN.h>
56 
58 #define DW_SENSORS_CAN_INTERPRETER_MESSAGE_MAX_SIGNALS 128
59 
61 #define DW_SENSORS_CAN_INTERPRETER_MAX_MESSAGE_NAME_LEN 32
62 
64 #define DW_SENSORS_CAN_INTERPRETER_MAX_SIGNAL_NAME_LEN 32
65 
66 #ifdef __cplusplus
67 extern "C" {
68 #endif
69 
71 typedef struct dwCANInterpreterObject* dwCANInterpreterHandle_t;
72 
74 typedef void (*dwCANInterpreterAddMessageFunc_t)(const dwCANMessage* msg, void* userData);
75 
77 typedef uint32_t (*dwCANInterpreterGetNumAvailableFunc_t)(void* userData);
78 
80 typedef bool (*dwCANInterpreterGetSignalInfoFunc_t)(const char** name, dwTrivialDataType* type,
81  dwCANVehicleData* data,
82  uint32_t idx, void* userData);
83 
85 typedef bool (*dwCANInterpreterGetDataf32Func_t)(float32_t* value, dwTime_t* timestamp_us, uint32_t idx, void* userData);
86 
88 typedef bool (*dwCANInterpreterGetDataf64Func_t)(float64_t* value, dwTime_t* timestamp_us, uint32_t idx, void* userData);
89 
91 typedef bool (*dwCANInterpreterGetDatai32Func_t)(int32_t* value, dwTime_t* timestamp_us, uint32_t idx, void* userData);
92 
95 {
103 
122 dwStatus dwCANInterpreter_buildFromCallbacks(dwCANInterpreterHandle_t* interpreter, dwCANInterpreterInterface callbacks,
123  void* userData, dwContextHandle_t context);
124 
149 dwStatus dwCANInterpreter_buildFromDBC(dwCANInterpreterHandle_t* interpreter,
150  const char* inputDBC,
151  dwContextHandle_t ctx);
152 
166 dwStatus dwCANInterpreter_release(dwCANInterpreterHandle_t interpreter);
167 
168 // ------------ encoding
186  const dwCANMessage* msg,
187  dwCANInterpreterHandle_t interpreter);
188 
206 dwStatus dwCANInterpreter_getSignalNameInMessage(const char** name, uint32_t idx,
207  const dwCANMessage* msg,
208  dwCANInterpreterHandle_t interpreter);
209 
224 dwStatus dwCANInterpreter_createMessage(dwCANMessage* msg, uint32_t id, dwCANInterpreterHandle_t interpreter);
225 
241  dwCANInterpreterHandle_t interpreter);
242 
262 dwStatus dwCANInterpreter_encodef32(float32_t value, const char* signal,
263  dwCANMessage* msg,
264  dwCANInterpreterHandle_t interpreter);
265 
270 dwStatus dwCANInterpreter_encodef64(float64_t value, const char* signal,
271  dwCANMessage* msg,
272  dwCANInterpreterHandle_t interpreter);
273 
278 dwStatus dwCANInterpreter_encodei32(int32_t value, const char* signal,
279  dwCANMessage* msg,
280  dwCANInterpreterHandle_t interpreter);
281 
282 // ----------------- consumption
297  dwCANInterpreterHandle_t interpreter);
298 
312 dwStatus dwCANInterpreter_getNumberSignals(uint32_t* num, dwCANInterpreterHandle_t interpreter);
313 
333  dwCANInterpreterHandle_t interpreter);
334 
347 dwStatus dwCANInterpreter_getSignalName(const char** name, uint32_t idx,
348  dwCANInterpreterHandle_t interpreter);
349 
364  dwCANInterpreterHandle_t interpreter);
365 
379 dwStatus dwCANInterpreter_getSignalRange(float64_t* minimum, float64_t* maximum, uint32_t idx,
380  dwCANInterpreterHandle_t interpreter);
381 
402 dwStatus dwCANInterpreter_getf32(float32_t* value, dwTime_t* timestamp_us, uint32_t idx, dwCANInterpreterHandle_t interpreter);
403 
408 dwStatus dwCANInterpreter_getf64(float64_t* value, dwTime_t* timestamp_us, uint32_t idx, dwCANInterpreterHandle_t interpreter);
409 
414 dwStatus dwCANInterpreter_geti32(int32_t* value, dwTime_t* timestamp_us, uint32_t idx, dwCANInterpreterHandle_t interpreter);
415 
416 #ifdef __cplusplus
417 }
418 #endif
419 
420 #endif // DW_SENSORS_CANBUS_INTERPRETER_H_
DW_API_PUBLIC dwStatus dwCANInterpreter_encodef64(float64_t value, const char *signal, dwCANMessage *msg, dwCANInterpreterHandle_t interpreter)
Same as dwCANInterpreter_encodef32, but for float64 types.
float float32_t
Specifies POD types.
Definition: Types.h:70
dwCANInterpreterGetDatai32Func_t getDatai32
Definition: Interpreter.h:101
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.
dwTrivialDataType
Specifies a type indicator of the underlying trivial data type.
Definition: Types.h:103
Interface for callback based CAN data interpreter.
Definition: Interpreter.h:94
dwCANInterpreterGetDataf32Func_t getDataf32
Definition: Interpreter.h:99
dwCANInterpreterGetDataf64Func_t getDataf64
Definition: Interpreter.h:100
DW_API_PUBLIC dwStatus dwCANInterpreter_createMessageFromName(dwCANMessage *msg, const char *msgName, dwCANInterpreterHandle_t interpreter)
Initializes an empty can message an interpreter can encoded signals into.
NVIDIA DriveWorks API: Vehicle Data
DW_API_PUBLIC dwStatus dwCANInterpreter_encodei32(int32_t value, const char *signal, dwCANMessage *msg, dwCANInterpreterHandle_t interpreter)
Same as dwCANInterpreter_encodef32, but for int32 types.
DW_API_PUBLIC dwStatus dwCANInterpreter_release(dwCANInterpreterHandle_t interpreter)
Closes previously opened interpreter.
double float64_t
Definition: Types.h:71
dwCANVehicleData
A set of enumeration constants representing the default data signals.
Definition: VehicleData.h:68
dwCANInterpreterGetNumAvailableFunc_t getNumAvailableSignals
Definition: Interpreter.h:97
dwStatus
Status definition.
Definition: Status.h:166
DW_API_PUBLIC dwStatus dwCANInterpreter_encodef32(float32_t value, const char *signal, dwCANMessage *msg, dwCANInterpreterHandle_t interpreter)
Encodes a value for a signal into a given message.
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_getSignalNameInMessage(const char **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...
int64_t dwTime_t
Specifies a timestamp unit, in microseconds.
Definition: Types.h:82
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:88
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_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_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...
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.
DW_API_PUBLIC dwStatus dwCANInterpreter_buildFromDBC(dwCANInterpreterHandle_t *interpreter, const char *inputDBC, dwContextHandle_t ctx)
Creates a CAN data interpreter based on DBC file format.
DW_API_PUBLIC dwStatus dwCANInterpreter_getSignalName(const char **name, uint32_t idx, dwCANInterpreterHandle_t interpreter)
Gets the name of a signal available for consumption by the application as a string.
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:91
NVIDIA DriveWorks API: CAN
dwCANInterpreterGetSignalInfoFunc_t getSignalInfo
Definition: Interpreter.h:98
struct dwContextObject * dwContextHandle_t
Context handle.
Definition: Context.h:80
DW_API_PUBLIC dwStatus dwCANInterpreter_getf32(float32_t *value, dwTime_t *timestamp_us, uint32_t idx, dwCANInterpreterHandle_t interpreter)
Gets a &#39;float32_t&#39; value from the available values.
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.
bool(* dwCANInterpreterGetSignalInfoFunc_t)(const char **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:80
NVIDIA DriveWorks API: Core Exports
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_getf64(float64_t *value, dwTime_t *timestamp_us, uint32_t idx, dwCANInterpreterHandle_t interpreter)
Same as dwCANInterpreter_getf32, but for float64 types.
void(* dwCANInterpreterAddMessageFunc_t)(const dwCANMessage *msg, void *userData)
Pushes new messages to the interpreter.
Definition: Interpreter.h:74
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:85
#define DW_API_PUBLIC
Definition: Exports.h:56
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:77
DW_API_PUBLIC dwStatus dwCANInterpreter_consume(const dwCANMessage *msg, dwCANInterpreterHandle_t interpreter)
Pushes a new message to the interpreter.
Holds a CAN package.
Definition: CAN.h:114
dwCANInterpreterAddMessageFunc_t addMessage
Definition: Interpreter.h:96
struct dwCANInterpreterObject * dwCANInterpreterHandle_t
CAN message interpreter handle.
Definition: Interpreter.h:71