Rename header file to hpp.

Change-Id: I399e0c0f39b18e63e254825b6322faf77896a264
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

1 files changed, 173 insertions, 0 deletions

diff --git a/src/obd2.hpp b/src/obd2.hpp
new file mode 100644
index 0000000..cd362c7
--- /dev/null
+++ b/src/obd2.hpp
@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *	 http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ *	A representation of an OBD-II PID.
+ *
+ * pid - The 1 byte PID.
+ * name - A human readable name to use for this PID when published.
+ * frequency - The frequency to request this PID if supported by the vehicle
+ *		when automatic, recurring OBD-II requests are enabled.
+ */
+
+enum UNIT {
+	POURCENT,
+	DEGREES_CELSIUS,
+	KPA,
+	RPM,
+	GRAMS_SEC,
+	SECONDS,
+	KM,
+	KM_H,
+	PA,
+	NM
+};
+
+const char *UNIT_NAMES[10] = {
+	"POURCENT",
+	"DEGREES_CELSIUS",
+	"KPA",
+	"RPM",
+	"GRAMS_SEC",
+	"SECONDS",
+	"KM",
+	"KM_H",
+	"PA",
+	"NM"
+};
+
+/*
+ *	A representation of an OBD-II PID.
+ *
+ * pid - The 1 byte PID.
+ * name - A human readable name to use for this PID when published.
+ * min - minimum value for this pid
+ * max - maximum value for this pid
+ * unit - unit used
+ * frequency - The frequency to request this PID if supported by the vehicle
+ *		when automatic, recurring OBD-II requests are enabled.
+ *	supported - is it supported by the vehicle. Initialized after scan
+ * event - application framework event handler.
+ */
+typedef struct _Obd2Pid {
+	uint8_t pid;
+	const char* name;
+	const int min;
+	const int max;
+	enum UNIT unit;
+	int frequency;
+	bool supported;
+	struct afb_event event;
+} Obd2Pid;
+
+/*
+	{ pid: 0x4, name: "engine.load", frequency: 5 },
+	{ pid: 0x5, name: "engine.coolant.temperature", frequency: 1 },
+	{ pid: 0xa, name: "fuel.pressure", frequency: 1 },
+	{ pid: 0xb, name: "intake.manifold.pressure", frequency: 1 },
+	{ pid: 0xc, name: "engine.speed", frequency: 5 },
+	{ pid: 0xd, name: "vehicle.speed", frequency: 5 },
+	{ pid: 0xf, name: "intake.air.temperature", frequency: 1 },
+	{ pid: 0x10, name: "mass.airflow", frequency: 5 },
+	{ pid: 0x11, name: "throttle.position", frequency: 5 },
+	{ pid: 0x1f, name: "running.time", frequency: 1 },
+	{ pid: 0x27, name: "fuel.level", frequency: 1 },
+	{ pid: 0x33, name: "barometric.pressure", frequency: 1 },
+	{ pid: 0x4c, name: "commanded.throttle.position", frequency: 1 },
+	{ pid: 0x52, name: "ethanol.fuel.percentage", frequency: 1 },
+	{ pid: 0x5a, name: "accelerator.pedal.position", frequency: 5 },
+	{ pid: 0x5c, name: "engine.oil.temperature", frequency: 1 },
+	{ pid: 0x63, name: "engine.torque", frequency: 1 },
+};
+ */
+
+/* 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
+ * then request them regularly
+ */
+class obd2_handler_c {
+	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 },
+			{ pid: 0x05, name: "obd2.engine.coolant.temperature", min: -40, max: 215, unit: DEGREES_CELSIUS, frequency: 1, supported: false },
+			{ pid: 0x0a, name: "obd2.fuel.pressure", min: 0, max: 765, unit: KPA, frequency: 1, supported: false },
+			{ pid: 0x0b, name: "obd2.intake.manifold.pressure", min: 0, max: 255, unit: KPA, frequency: 1, supported: false },
+			{ pid: 0x0c, name: "obd2.engine.speed", min: 0, max: 16383, unit: RPM, frequency: 5, supported: false },
+			{ pid: 0x0d, name: "obd2.vehicle.speed", min: 0, max: 255, unit: KM_H, frequency: 5, supported: false },
+			{ pid: 0x0f, name: "obd2.intake.air.temperature", min: -40, max:215, unit: DEGREES_CELSIUS, frequency: 1, supported: false },
+			{ pid: 0x10, name: "obd2.mass.airflow", min: 0, max: 655, unit: GRAMS_SEC, frequency: 5, supported: false },
+			{ pid: 0x11, name: "obd2.throttle.position", min: 0, max: 100, unit: POURCENT, frequency: 5, supported: false },
+			{ pid: 0x1f, name: "obd2.running.time", min: 0, max: 65535, unit: SECONDS, frequency: 1, supported: false },
+			{ pid: 0x2d, name: "obd2.EGR.error", min: -100, max: 99, unit: POURCENT, frequency: 0, supported: false },
+			{ pid: 0x2f, name: "obd2.fuel.level", min: 0, max: 100, unit: POURCENT, frequency: 1, supported: false },
+			{ pid: 0x33, name: "obd2.barometric.pressure", min: 0, max: 255, unit: KPA, frequency: 1, supported: false },
+			{ pid: 0x4c, name: "obd2.commanded.throttle.position", min: 0, max: 100, unit: POURCENT, frequency: 1, supported: false },
+			{ pid: 0x52, name: "obd2.ethanol.fuel.percentage", min: 0, max: 100, unit: POURCENT, frequency: 1, supported: false },
+			{ pid: 0x5a, name: "obd2.accelerator.pedal.position", min: 0, max: 100, unit: POURCENT, frequency: 5, supported: false },
+			{ pid: 0x5b, name: "obd2.hybrid.battery-pack.remaining.life", min: 0, max: 100, unit: POURCENT, frequency: 5, supported: false },
+			{ pid: 0x5c, name: "obd2.engine.oil.temperature",min: -40, max: 210, unit: DEGREES_CELSIUS, frequency: 1, supported: false },
+			{ pid: 0x63, name: "obd2.engine.torque", min: 0, max: 65535, unit: NM, frequency: 1, supported: false },
+		};
+
+			
+			/* 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.
+ 			 */
+			void find_obd2_pid(const char *name, std::Vector<Obd2Pid> *pids);
+
+			/* 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 is_obd2_request(DiagnosticRequest *request);
+
+			/*
+			 * Public: Check if requested signal name is an obd2 pid
+			 * 
+			 * Returns true if name began with ob2.* else false.
+			 */
+			bool is_obd2_signal(const char *name);
+
+			/*
+			 * Public: pass response to UDS-C library function 
+			 * diagnostic_decode_obd2_pid()
+			 *
+			 * Return: float number representing the requested value.
+			 */
+			bool decode_obd2_response(DiagnosticResponse* responce);
+}
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