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/*
* 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.
*/
#pragma once
#include <vector>
#include "uds/uds.h"
#include "uds/uds_types.h"
#include "can/can-bus.hpp"
#include "can/can-message.hpp"
#include "low-can-binding.hpp"
class active_diagnostic_request_t;
class can_bus_dev_t;
/* Public: The signature for an optional function that can apply the neccessary
* formula to translate the binary payload into meaningful data.
*
* 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.
* parsed_payload - the entire payload of the response parsed as an int.
*/
typedef float (*DiagnosticResponseDecoder)(const DiagnosticResponse* response,
float parsed_payload);
/* Public: The signature for an optional function to handle a new diagnostic
* response.
*
* manager - The DiagnosticsManager providing this response.
* request - The original diagnostic request.
* response - The response object that was just received.
* parsed_payload - The payload of the response, parsed as a float.
*/
typedef void (*DiagnosticResponseCallback)(const active_diagnostic_request_t* request,
const DiagnosticResponse* response, float parsed_payload);
/**
* @brief An active diagnostic request, either recurring or one-time.
*/
class active_diagnostic_request_t {
private:
can_bus_dev_t* bus_; /*!< can_bus_dev_t* bus_ - The CAN bus this request should be made on, or is currently in flight-on*/
uint32_t id_; /*!< The arbitration ID (aka message ID) for the request.*/
DiagnosticRequestHandle* handle_; /*!< DiagnosticRequestHandle* handle - A handle for the request to keep track of it between
* sending the frames of the request and receiving all frames of the response.*/
std::string name_; /*!< std::string name_ - An optional human readable name this response, to be used when publishing received
* responses. If the name is NULL, the published output will use the raw OBD-II response format.*/
DiagnosticResponseDecoder decoder_; /*!< decoder - An optional DiagnosticResponseDecoder to parse the payload of responses
* to this request. If the decoder is NULL, the output will include the raw payload
* instead of a parsed value.*/
DiagnosticResponseCallback callback_; /*!< callback - An optional DiagnosticResponseCallback to be notified whenever a
* response is received for this request.*/
bool recurring_; /*!< bool recurring_ - If true, this is a recurring request and it will remain as active until explicitly cancelled.
* The frequencyClock attribute controls how often a recurrin request is made.*/
bool waitForMultipleResponses_; /*!< bool waitForMultipleResponses_ - False by default, when any response is received for a request
* it will be removed from the active list. If true, the request will remain active until the timeout
* clock expires, to allow it to receive multiple response (e.g. to a functional broadcast request).*/
bool inFlight_; /*!< inFlight - True if the request has been sent and we are waiting for a response.*/
FrequencyClock frequencyClock_; /*!< FrequencyClock frequencyClock_ - A FrequencyClock struct to control the send rate for a
* recurring request. If the request is not reecurring, this attribute is not used.*/
FrequencyClock timeoutClock_; /*!< FrequencyClock timeoutClock_ - A FrequencyClock struct to monitor how long it's been since
* this request was sent.*/
public:
};
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