diff options
Diffstat (limited to 'src/can/can-decoder.cpp')
| -rw-r--r-- | src/can/can-decoder.cpp | 252 |
1 files changed, 127 insertions, 125 deletions
diff --git a/src/can/can-decoder.cpp b/src/can/can-decoder.cpp index 866434e0..467261af 100644 --- a/src/can/can-decoder.cpp +++ b/src/can/can-decoder.cpp @@ -20,15 +20,15 @@ #include "canutil/read.h" #include "../utils/openxc-utils.hpp" -/* Public: Parse the signal's bitfield from the given data and return the raw -* value. -* -* @param[in] signal - The signal to parse from the data. -* @param[in] message - can_message_t to parse -* -* @return Returns the raw value of the signal parsed as a bitfield from the given byte -* array. -*/ +/// @brief Parse the signal's bitfield from the given data and return the raw +/// value. +/// +/// @param[in] signal - The signal to parse from the data. +/// @param[in] message - can_message_t to parse +/// +/// @return Returns the raw value of the signal parsed as a bitfield from the given byte +/// array. +/// float decoder_t::parseSignalBitfield(can_signal_t& signal, const can_message_t& message) { return bitfield_parse_float(message.get_data(), CAN_MESSAGE_SIZE, @@ -36,21 +36,21 @@ float decoder_t::parseSignalBitfield(can_signal_t& signal, const can_message_t& signal.get_offset()); } -/* Public: Wrap a raw CAN signal value in a DynamicField without modification. -* -* This is an implementation of the SignalDecoder type signature, and can be -* used directly in the can_signal_t.decoder field. -* -* @param[in] signal - The details of the signal that contains the state mapping. -* @param[in] signals - The list of all signals -* @param[in] value - The numerical value that will be wrapped in a DynamicField. -* @param[out]send - An output argument that will be set to false if the value should -* not be sent for any reason. -* -* @return Returns a DynamicField with the original, unmodified raw CAN signal value as -* its numeric value. The 'send' argument will not be modified as this decoder -* always succeeds. -*/ +/// @brief Wrap a raw CAN signal value in a DynamicField without modification. +/// +/// This is an implementation of the SignalDecoder type signature, and can be +/// used directly in the can_signal_t.decoder field. +/// +/// @param[in] signal - The details of the signal that contains the state mapping. +/// @param[in] signals - The list of all signals +/// @param[in] value - The numerical value that will be wrapped in a DynamicField. +/// @param[out] send - An output argument that will be set to false if the value should +/// not be sent for any reason. +/// +/// @return Returns a DynamicField with the original, unmodified raw CAN signal value as +/// its numeric value. The 'send' argument will not be modified as this decoder +/// always succeeds. +/// openxc_DynamicField decoder_t::noopDecoder(can_signal_t& signal, const std::vector<can_signal_t>& signals, float value, bool* send) { @@ -58,21 +58,21 @@ openxc_DynamicField decoder_t::noopDecoder(can_signal_t& signal, return decoded_value; } -/* Public: Coerces a numerical value to a boolean. -* -* This is an implementation of the SignalDecoder type signature, and can be -* used directly in the can_signal_t.decoder field. -* -* @param[in] signal - The details of the signal that contains the state mapping. -* @param[in] signals - The list of all signals -* @param[in] value - The numerical value that will be converted to a boolean. -* @param[out] send - An output argument that will be set to false if the value should -* not be sent for any reason. -* -* @return Returns a DynamicField with a boolean value of false if the raw signal value -* is 0.0, otherwise true. The 'send' argument will not be modified as this -* decoder always succeeds. -*/ +/// @brief Coerces a numerical value to a boolean. +/// +/// This is an implementation of the SignalDecoder type signature, and can be +/// used directly in the can_signal_t.decoder field. +/// +/// @param[in] signal - The details of the signal that contains the state mapping. +/// @param[in] signals - The list of all signals +/// @param[in] value - The numerical value that will be converted to a boolean. +/// @param[out] send - An output argument that will be set to false if the value should +/// not be sent for any reason. +/// +/// @return Returns a DynamicField with a boolean value of false if the raw signal value +/// is 0.0, otherwise true. The 'send' argument will not be modified as this +/// decoder always succeeds. +/// openxc_DynamicField decoder_t::booleanDecoder(can_signal_t& signal, const std::vector<can_signal_t>& signals, float value, bool* send) { @@ -80,21 +80,21 @@ openxc_DynamicField decoder_t::booleanDecoder(can_signal_t& signal, return decoded_value; } -/* Public: Update the metadata for a signal and the newly received value. -* -* This is an implementation of the SignalDecoder type signature, and can be -* used directly in the can_signal_t.decoder field. -* -* This function always flips 'send' to false. -* -* @param[in] signal - The details of the signal that contains the state mapping. -* @param[in] signals - The list of all signals. -* @param[in] value - The numerical value that will be converted to a boolean. -* @param[out] send - This output argument will always be set to false, so the caller will -* know not to publish this value to the pipeline. -* -* @return Return value is undefined. -*/ +/// @brief Update the metadata for a signal and the newly received value. +/// +/// This is an implementation of the SignalDecoder type signature, and can be +/// used directly in the can_signal_t.decoder field. +/// +/// This function always flips 'send' to false. +/// +/// @param[in] signal - The details of the signal that contains the state mapping. +/// @param[in] signals - The list of all signals. +/// @param[in] value - The numerical value that will be converted to a boolean. +/// @param[out] send - This output argument will always be set to false, so the caller will +/// know not to publish this value to the pipeline. +/// +/// @return Return value is undefined. +/// openxc_DynamicField decoder_t::ignoreDecoder(can_signal_t& signal, const std::vector<can_signal_t>& signals, float value, bool* send) { @@ -106,22 +106,22 @@ openxc_DynamicField decoder_t::ignoreDecoder(can_signal_t& signal, return decoded_value; } -/* Public: Find and return the corresponding string state for a CAN signal's -* raw integer value. -* -* This is an implementation of the SignalDecoder type signature, and can be -* used directly in the can_signal_t.decoder field. -* -* @param[in] signal - The details of the signal that contains the state mapping. -* @param[in] signals - The list of all signals. -* @param[in] value - The numerical value that should map to a state. -* @param[out] send - An output argument that will be set to false if the value should -* not be sent for any reason. -* -* @return Returns a DynamicField with a string value if a matching state is found in -* the signal. If an equivalent isn't found, send is sent to false and the -* return value is undefined. -*/ +/// @brief Find and return the corresponding string state for a CAN signal's +/// raw integer value. +/// +/// This is an implementation of the SignalDecoder type signature, and can be +/// used directly in the can_signal_t.decoder field. +/// +/// @param[in] signal - The details of the signal that contains the state mapping. +/// @param[in] signals - The list of all signals. +/// @param[in] value - The numerical value that should map to a state. +/// @param[out] send - An output argument that will be set to false if the value should +/// not be sent for any reason. +/// +/// @return Returns a DynamicField with a string value if a matching state is found in +/// the signal. If an equivalent isn't found, send is sent to false and the +/// return value is undefined. +/// openxc_DynamicField decoder_t::stateDecoder(can_signal_t& signal, const std::vector<can_signal_t>& signals, float value, bool* send) { @@ -136,19 +136,19 @@ openxc_DynamicField decoder_t::stateDecoder(can_signal_t& signal, } -/* Public: Parse a signal from a CAN message, apply any required transforations -* to get a human readable value and public the result to the pipeline. -* -* If the can_signal_t has a non-NULL 'decoder' field, the raw CAN signal value -* will be passed to the decoder before publishing. -* -* @param[in] signal - The details of the signal to decode and forward. -* @param[in] message - The received CAN message that should contain this signal. -* @param[in] signals - an array of all active signals. -* -* The decoder returns an openxc_DynamicField, which may contain a number, -* string or boolean. -*/ +/// @brief Parse a signal from a CAN message, apply any required transforations +/// to get a human readable value and public the result to the pipeline. +/// +/// If the can_signal_t has a non-NULL 'decoder' field, the raw CAN signal value +/// will be passed to the decoder before publishing. +/// +/// @param[in] signal - The details of the signal to decode and forward. +/// @param[in] message - The received CAN message that should contain this signal. +/// @param[in] signals - an array of all active signals. +/// +/// The decoder returns an openxc_DynamicField, which may contain a number, +/// string or boolean. +/// openxc_DynamicField decoder_t::translateSignal(can_signal_t& signal, can_message_t& message, const std::vector<can_signal_t>& signals) { @@ -172,21 +172,21 @@ openxc_DynamicField decoder_t::translateSignal(can_signal_t& signal, can_message return decoded_value; } -/* Public: Parse a signal from a CAN message and apply any required -* transforations to get a human readable value. -* -* If the can_signal_t has a non-NULL 'decoder' field, the raw CAN signal value -* will be passed to the decoder before returning. -* -* @param[in] signal - The details of the signal to decode and forward. -* @param[in] value - The numerical value that will be converted to a boolean. -* @param[in] signals - an array of all active signals. -* @param[out] send - An output parameter that will be flipped to false if the value could -* not be decoded. -* -* @return The decoder returns an openxc_DynamicField, which may contain a number, -* string or boolean. If 'send' is false, the return value is undefined. -*/ +/// @brief Parse a signal from a CAN message and apply any required +/// transforations to get a human readable value. +/// +/// If the can_signal_t has a non-NULL 'decoder' field, the raw CAN signal value +/// will be passed to the decoder before returning. +/// +/// @param[in] signal - The details of the signal to decode and forward. +/// @param[in] value - The numerical value that will be converted to a boolean. +/// @param[in] signals - an array of all active signals. +/// @param[out] send - An output parameter that will be flipped to false if the value could +/// not be decoded. +/// +/// @return The decoder returns an openxc_DynamicField, which may contain a number, +/// string or boolean. If 'send' is false, the return value is undefined. +/// openxc_DynamicField decoder_t::decodeSignal( can_signal_t& signal, float value, const std::vector<can_signal_t>& signals, bool* send) { @@ -197,19 +197,19 @@ openxc_DynamicField decoder_t::decodeSignal( can_signal_t& signal, return decoded_value; } -/* Public: Decode a transformed, human readable value from an raw CAN signal -* already parsed from a CAN message. -* -* This is the same as decodeSignal but you must parse the bitfield value of the signal from the CAN -* message yourself. This is useful if you need that raw value for something -* else. -* -* @param[in] signal - The details of the signal to decode and forward. -* @param[in] value - The numerical value that will be converted to a boolean. -* @param[in] signals - an array of all active signals. -* @param[out] send - An output parameter that will be flipped to false if the value could -* not be decoded. -*/ +/// @brief Decode a transformed, human readable value from an raw CAN signal +/// already parsed from a CAN message. +/// +/// This is the same as decodeSignal but you must parse the bitfield value of the signal from the CAN +/// message yourself. This is useful if you need that raw value for something +/// else. +/// +/// @param[in] signal - The details of the signal to decode and forward. +/// @param[in] message - Raw CAN message to decode +/// @param[in] signals - an array of all active signals. +/// @param[out] send - An output parameter that will be flipped to false if the value could +/// not be decoded. +/// openxc_DynamicField decoder_t::decodeSignal( can_signal_t& signal, const can_message_t& message, const std::vector<can_signal_t>& signals, bool* send) { @@ -218,20 +218,22 @@ openxc_DynamicField decoder_t::decodeSignal( can_signal_t& signal, } -/** -* @brief Decode the payload of an OBD-II PID. -* -* This function matches the type signature for a DiagnosticResponseDecoder, so -* it can be used as the decoder for a DiagnosticRequest. It returns the decoded -* value of the PID, using the standard formulas (see -* http://en.wikipedia.org/wiki/OBD-II_PIDs#Mode_01). -* -* @param[in] response - the received DiagnosticResponse (the data is in response.payload, -* a byte array). This is most often used when the byte order is -* signiticant, i.e. with many OBD-II PID formulas. -* @param[in] parsed_payload - the entire payload of the response parsed as an int. -*/ -float decoder_t::decode_obd2_response(const DiagnosticResponse* response, float parsedPayload) +/// +/// @brief Decode the payload of an OBD-II PID. +/// +/// This function matches the type signature for a DiagnosticResponseDecoder, so +/// it can be used as the decoder for a DiagnosticRequest. It returns the decoded +/// value of the PID, using the standard formulas (see +/// http://en.wikipedia.org/wiki/OBD-II_PIDs#Mode_01). +/// +/// @param[in] response - the received DiagnosticResponse (the data is in response.payload, +/// a byte array). This is most often used when the byte order is +/// signiticant, i.e. with many OBD-II PID formulas. +/// @param[in] parsed_payload - the entire payload of the response parsed as an int. +/// +/// @return Float decoded value. +/// +float decoder_t::decode_obd2_response(const DiagnosticResponse* response, float parsed_payload) { return diagnostic_decode_obd2_pid(response); }
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