X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fobd2.hpp;h=42ba9fa66423111b1f9d1f15a1a5c438c7781308;hb=4bcb47864452b2d219572862aed3d173c3c0a945;hp=72b41eb91177cd9b8470f5ef32c20598e7f0732a;hpb=f97e5f6d0b15df8fe8c7a4621e40c6a23bbac137;p=apps%2Fagl-service-can-low-level.git diff --git a/src/obd2.hpp b/src/obd2.hpp index 72b41eb9..42ba9fa6 100644 --- a/src/obd2.hpp +++ b/src/obd2.hpp @@ -17,6 +17,10 @@ #include #include "uds/uds.h" +extern "C" +{ + #include +} enum UNIT { POURCENT, @@ -44,8 +48,8 @@ const char *UNIT_NAMES[10] = { "NM" }; -/* - * A representation of an OBD-II PID. +/** + * @brief A representation of an OBD-II PID. * * pid - The 1 byte PID. * name - A human readable name to use for this PID when published. @@ -68,54 +72,39 @@ typedef struct _Obd2Pid { struct afb_event event; } Obd2Pid; -/* Public: Check if a request is an OBD-II PID request. - * - * Returns true if the request is a mode 1 request and it has a 1 byte PID. - */ -bool isObd2Request(DiagnosticRequest* request); - -/* Public: 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). - */ -float handleObd2Pid(const DiagnosticResponse* response, float parsedPayload); - /* - * Object to handle obd2 session with pre-scan of supported pid +* Pre-defined OBD-II PIDs to query for if supported by the vehicle. +*/ +const std::vector OBD2_PIDS { + { pid: 0x04, name: "obd2.engine.load", min:0, max: 100, unit: POURCENT, frequency: 5, supported: false, event: {nullptr, nullptr} }, + { pid: 0x05, name: "obd2.engine.coolant.temperature", min: -40, max: 215, unit: DEGREES_CELSIUS, frequency: 1, supported: false, event: {nullptr, nullptr} }, + { pid: 0x0a, name: "obd2.fuel.pressure", min: 0, max: 765, unit: KPA, frequency: 1, supported: false, event: {nullptr, nullptr} }, + { pid: 0x0b, name: "obd2.intake.manifold.pressure", min: 0, max: 255, unit: KPA, frequency: 1, supported: false, event: {nullptr, nullptr} }, + { pid: 0x0c, name: "obd2.engine.speed", min: 0, max: 16383, unit: RPM, frequency: 5, supported: false, event: {nullptr, nullptr} }, + { pid: 0x0d, name: "obd2.vehicle.speed", min: 0, max: 255, unit: KM_H, frequency: 5, supported: false, event: {nullptr, nullptr} }, + { pid: 0x0f, name: "obd2.intake.air.temperature", min: -40, max:215, unit: DEGREES_CELSIUS, frequency: 1, supported: false, event: {nullptr, nullptr} }, + { pid: 0x10, name: "obd2.mass.airflow", min: 0, max: 655, unit: GRAMS_SEC, frequency: 5, supported: false, event: {nullptr, nullptr} }, + { pid: 0x11, name: "obd2.throttle.position", min: 0, max: 100, unit: POURCENT, frequency: 5, supported: false, event: {nullptr, nullptr} }, + { pid: 0x1f, name: "obd2.running.time", min: 0, max: 65535, unit: SECONDS, frequency: 1, supported: false, event: {nullptr, nullptr} }, + { pid: 0x2d, name: "obd2.EGR.error", min: -100, max: 99, unit: POURCENT, frequency: 0, supported: false, event: {nullptr, nullptr} }, + { pid: 0x2f, name: "obd2.fuel.level", min: 0, max: 100, unit: POURCENT, frequency: 1, supported: false, event: {nullptr, nullptr} }, + { pid: 0x33, name: "obd2.barometric.pressure", min: 0, max: 255, unit: KPA, frequency: 1, supported: false, event: {nullptr, nullptr} }, + { pid: 0x4c, name: "obd2.commanded.throttle.position", min: 0, max: 100, unit: POURCENT, frequency: 1, supported: false, event: {nullptr, nullptr} }, + { pid: 0x52, name: "obd2.ethanol.fuel.percentage", min: 0, max: 100, unit: POURCENT, frequency: 1, supported: false, event: {nullptr, nullptr} }, + { pid: 0x5a, name: "obd2.accelerator.pedal.position", min: 0, max: 100, unit: POURCENT, frequency: 5, supported: false, event: {nullptr, nullptr} }, + { pid: 0x5b, name: "obd2.hybrid.battery-pack.remaining.life", min: 0, max: 100, unit: POURCENT, frequency: 5, supported: false, event: {nullptr, nullptr} }, + { pid: 0x5c, name: "obd2.engine.oil.temperature",min: -40, max: 210, unit: DEGREES_CELSIUS, frequency: 1, supported: false, event: {nullptr, nullptr} }, + { pid: 0x63, name: "obd2.engine.torque", min: 0, max: 65535, unit: NM, frequency: 1, supported: false, event: {nullptr, nullptr} } +}; + +/** + * @brief - Object to handle obd2 session with pre-scan of supported pid * then request them regularly */ -class obd2_handler_c { +class obd2_handler_t { private: public: - /* - * Pre-defined OBD-II PIDs to query for if supported by the vehicle. - */ - const Obd2Pid OBD2_PIDS[] = { - { pid: 0x04, name: "obd2.engine.load", min:0, max: 100, unit: POURCENT, frequency: 5, supported: false, event: nullptr }, - { pid: 0x05, name: "obd2.engine.coolant.temperature", min: -40, max: 215, unit: DEGREES_CELSIUS, frequency: 1, supported: false, event: nullptr}, - { pid: 0x0a, name: "obd2.fuel.pressure", min: 0, max: 765, unit: KPA, frequency: 1, supported: false, event: nullptr }, - { pid: 0x0b, name: "obd2.intake.manifold.pressure", min: 0, max: 255, unit: KPA, frequency: 1, supported: false, event: nullptr }, - { pid: 0x0c, name: "obd2.engine.speed", min: 0, max: 16383, unit: RPM, frequency: 5, supported: false, event: nullptr }, - { pid: 0x0d, name: "obd2.vehicle.speed", min: 0, max: 255, unit: KM_H, frequency: 5, supported: false, event: nullptr }, - { pid: 0x0f, name: "obd2.intake.air.temperature", min: -40, max:215, unit: DEGREES_CELSIUS, frequency: 1, supported: false, event: nullptr }, - { pid: 0x10, name: "obd2.mass.airflow", min: 0, max: 655, unit: GRAMS_SEC, frequency: 5, supported: false, event: nullptr }, - { pid: 0x11, name: "obd2.throttle.position", min: 0, max: 100, unit: POURCENT, frequency: 5, supported: false, event: nullptr }, - { pid: 0x1f, name: "obd2.running.time", min: 0, max: 65535, unit: SECONDS, frequency: 1, supported: false, event: nullptr }, - { pid: 0x2d, name: "obd2.EGR.error", min: -100, max: 99, unit: POURCENT, frequency: 0, supported: false, event: nullptr }, - { pid: 0x2f, name: "obd2.fuel.level", min: 0, max: 100, unit: POURCENT, frequency: 1, supported: false, event: nullptr }, - { pid: 0x33, name: "obd2.barometric.pressure", min: 0, max: 255, unit: KPA, frequency: 1, supported: false, event: nullptr }, - { pid: 0x4c, name: "obd2.commanded.throttle.position", min: 0, max: 100, unit: POURCENT, frequency: 1, supported: false, event: nullptr }, - { pid: 0x52, name: "obd2.ethanol.fuel.percentage", min: 0, max: 100, unit: POURCENT, frequency: 1, supported: false, event: nullptr }, - { pid: 0x5a, name: "obd2.accelerator.pedal.position", min: 0, max: 100, unit: POURCENT, frequency: 5, supported: false, event: nullptr }, - { pid: 0x5b, name: "obd2.hybrid.battery-pack.remaining.life", min: 0, max: 100, unit: POURCENT, frequency: 5, supported: false, event: nullptr }, - { pid: 0x5c, name: "obd2.engine.oil.temperature",min: -40, max: 210, unit: DEGREES_CELSIUS, frequency: 1, supported: false, event: nullptr }, - { pid: 0x63, name: "obd2.engine.torque", min: 0, max: 65535, unit: NM, frequency: 1, supported: false, event: nullptr } - }; - /** * @brief: * @@ -137,11 +126,18 @@ class obd2_handler_c { */ bool is_obd2_signal(const char *name); - /* - * @brief pass response to UDS-C library function - * diagnostic_decode_obd2_pid() + /** + * @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). * - * @return float number representing the requested value. + * @param[in] DiagnosticResponse 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] float parsed_payload - the entire payload of the response parsed as an int. */ - bool decode_obd2_response(DiagnosticResponse* responce); -} \ No newline at end of file + float handle_obd2_pid(const DiagnosticResponse* response, float parsedPayload); +}; \ No newline at end of file