/// string or boolean.
///
/// @param[in] signal - The CAN signal that we are decoding.
-/// @param[in] signalCount - The length of the signals array.
-/// @param[in] value - The CAN signal parsed from the message as a raw floating point
-/// value.
+/// @param[in] message - The message with data to decode.
/// @param[out] send - An output parameter. If decoding fails or CAN signal is
/// not sending, this should be flipped to false.
///
/// @return a decoded value in an openxc_DynamicField struct.
///
-typedef openxc_DynamicField (*signal_decoder)(signal_t& signal, float value, bool* send);
+typedef openxc_DynamicField (*signal_decoder)(signal_t& signal, std::shared_ptr<message_t> message, bool* send);
///
/// @brief: The type signature for a CAN signal encoder.
typedef uint64_t (*signal_encoder)(signal_t& signal,
const openxc_DynamicField& field, bool* send);
+enum sign_t
+{
+ UNSIGNED = 0,
+ SIGN_BIT = 1,
+ ONES_COMPLEMENT = 2,
+ TWOS_COMPLEMENT = 3,
+ SIGN_BIT_EXTERN = 4
+};
+
class signal_t
{
private:
std::string generic_name_; /*!< generic_name_ - The name of the signal to be output.*/
static std::string prefix_; /*!< prefix_ - generic_name_ will be prefixed with it. It has to reflect the used protocol.
* which make easier to sort message when the come in.*/
- uint8_t bit_position_; /*!< bitPosition_ - The starting bit of the signal in its CAN message (assuming
+ uint32_t bit_position_; /*!< bitPosition_ - The starting bit of the signal in its CAN message (assuming
* non-inverted bit numbering, i.e. the most significant bit of
* each byte is 0) */
- uint8_t bit_size_; /*!< bit_size_ - The width of the bit field in the CAN message. */
+ uint32_t bit_size_; /*!< bit_size_ - The width of the bit field in the CAN message. */
float factor_; /*!< factor_ - The final value will be multiplied by this factor. Use 1 if you
* don't need a factor. */
float offset_; /*!< offset_ - The final value will be added to this offset. Use 0 if you
bool received_; /*!< received_ - True if this signal has ever been received.*/
float last_value_; /*!< lastValue_ - The last received value of the signal. If 'received' is false,
* this value is undefined. */
- std::pair<bool,int> multiplex_; /*!< multiplex_ - If bool is false and int is 0 is not a multiplex signal
+ std::pair<bool, int> multiplex_; /*!< multiplex_ - If bool is false and int is 0 is not a multiplex signal
If bool is true, that indicate that is a multiplexor
If int is different of 0, that indicate the link with a multiplexor */
bool is_big_endian_; /*!< is_big_endian - True if the signal's data are meant to be read as a big_endian */
- bool is_signed_; /* !< is_signed_ - True if the data is signed */
+ sign_t sign_; /* !< sign_ - if the data is signed it indicates the encode */
+ int32_t bit_sign_position_; /*!< bit_sign_position_ - The bit that indicates the sign of the signal in its CAN message*/
std::string unit_; /* !< unit_ - The unit of the data */
public:
signal_t(
std::string generic_name,
- uint8_t bit_position,
- uint8_t bit_size,
+ uint32_t bit_position,
+ uint32_t bit_size,
float factor,
float offset,
float min_value,
signal_decoder decoder,
signal_encoder encoder,
bool received,
- std::pair<bool,int> multiplex,
+ std::pair<bool, int> multiplex,
bool is_big_endian,
- bool is_signed,
+ sign_t sign,
+ int32_t bit_sign_position,
std::string unit);
signal_t(
std::string generic_name,
- uint8_t bit_position,
- uint8_t bit_size,
+ uint32_t bit_position,
+ uint32_t bit_size,
float factor,
float offset,
float min_value,
std::shared_ptr<message_definition_t> get_message() const;
const std::string get_generic_name() const;
const std::string get_name() const;
- uint8_t get_bit_position() const;
- uint8_t get_bit_size() const;
+ uint32_t get_bit_position() const;
+ uint32_t get_bit_size() const;
float get_factor() const;
float get_offset() const;
frequency_clock_t& get_frequency();
bool get_received() const;
float get_last_value() const;
std::pair<float, uint64_t> get_last_value_with_timestamp() const;
- std::pair<bool,int> get_multiplex() const;
+ std::pair<bool, int> get_multiplex() const;
bool get_is_big_endian() const;
- bool get_is_signed() const;
+ sign_t get_sign() const;
+ int32_t get_bit_sign_position() const;
const std::string get_unit() const;
void set_parent(std::shared_ptr<message_definition_t> parent);
void set_received(bool r);
void set_last_value(float val);
void set_timestamp(uint64_t timestamp);
+ void set_bit_position(uint32_t bit_position);
};