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authorRomain Forlot <romain.forlot@iot.bzh>2017-03-06 22:28:50 +0100
committerRomain Forlot <romain.forlot@iot.bzh>2017-03-16 17:05:17 +0100
commitde8fb10e1d8e98a85dfba6fc8966266dbf5e42c6 (patch)
tree0eab1a766f80b7498d63fb8ecd36486c13b633a2 /src/can-message.hpp
parent4fd376fac5b1d47eed3f22467ae5b5e35f1ec610 (diff)
Beginning of work on obd2 object and
files reorganization. Change-Id: Idaa7ad05c45d734ce771506fd6e41f1a09a6ac66 Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>
Diffstat (limited to 'src/can-message.hpp')
-rw-r--r--src/can-message.hpp151
1 files changed, 0 insertions, 151 deletions
diff --git a/src/can-message.hpp b/src/can-message.hpp
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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 <string>
-#include <cstdint>
-#include <linux/can.h>
-
-#include "timer.hpp"
-
-#define CAN_MESSAGE_SIZE 8
-
-/**
- * @enum CanMessageFormat
- * @brief The ID format for a CAN message.
- */
-enum CanMessageFormat {
- STANDARD, /*!< STANDARD - standard 11-bit CAN arbitration ID. */
- EXTENDED, /*!< EXTENDED - an extended frame, with a 29-bit arbitration ID. */
- ERROR, /*!< ERROR - ERROR code used at initialization to signify that it isn't usable'*/
-};
-typedef enum CanMessageFormat CanMessageFormat;
-
-/**
- * @class can_message_t
- *
- * @brief A compact representation of a single CAN message, meant to be used in in/out
- * buffers.
- */
-
-/*************************
- * old CanMessage struct *
- *************************
-struct CanMessage {
- uint32_t id;
- CanMessageFormat format;
- uint8_t data[CAN_MESSAGE_SIZE];
- uint8_t length;
-};
-typedef struct CanMessage CanMessage;
-*/
-class can_message_t {
- private:
- uint32_t id_; /*!< uint32_t id - The ID of the message. */
- bool rtr_flag_; /*!< bool rtr_flag - Telling if the frame has RTR flag positionned. Then frame hasn't data field*/
- uint8_t length_; /*!< uint8_t length - the length of the data array (max 8). */
- uint8_t flags_; /*!< unint8_t flags of a CAN FD frame. Needed if we catch FD frames.*/
- CanMessageFormat format_; /*!< CanMessageFormat format - the format of the message's ID.*/
- std::vector<uint8_t> data_; /*!< uint8_t data - The message's data field with a size of 8 which is the standard about CAN bus messages.*/
-
- uint8_t maxdlen_;
-
- public:
- can_message_t();
-
- uint32_t get_id() const;
- bool get_rtr_flag_() const;
- int get_format() const;
- uint8_t get_flags() const;
- const uint8_t* get_data() const;
- uint8_t get_length() const;
-
- void set_max_data_length(size_t nbytes);
- void set_id_and_format(const uint32_t new_id);
- void set_format(const CanMessageFormat new_format);
- void set_format(const uint32_t can_id);
- void set_flags(const uint8_t flags);
- void set_data(const __u8* new_data);
- void set_length(const uint8_t new_length);
-
- bool is_correct_to_send();
-
- void convert_from_canfd_frame(const std::pair<struct canfd_frame&, size_t>args);
- canfd_frame convert_to_canfd_frame();
-};
-
-/**
- * @struct CanMessageDefinition
- *
- * @brief The definition of a CAN message. This includes a lot of metadata, so
- * to save memory this struct should not be used for storing incoming and
- * outgoing CAN messages.
- */
-struct CanMessageDefinition {
- //can_bus_dev_t bus; /*!< bus - A pointer to the bus this message is on. */
- uint32_t id; /*!< id - The ID of the message.*/
- CanMessageFormat format; /*!< format - the format of the message's ID.*/
- FrequencyClock frequencyClock; /*!< clock - an optional frequency clock to control the output of this
- * message, if sent raw, or simply to mark the max frequency for custom
- * handlers to retriec++ if ? syntaxve.*/
- bool forceSendChanged; /*!< forceSendChanged - If true, regardless of the frequency, it will send CAN
- * message if it has changed when using raw passthrough.*/
- uint8_t lastValue[CAN_MESSAGE_SIZE]; /*!< lastValue - The last received value of the message. Defaults to undefined.
- * This is required for the forceSendChanged functionality, as the stack
- * needs to compare an incoming CAN message with the previous frame.*/
-};
-typedef struct CanMessageDefinition CanMessageDefinition;
-
-/**
- * @struct CanMessageSet
- *
- * @brief A parent wrapper for a particular set of CAN messages and associated
- * CAN buses(e.g. a vehicle or program).
- */
- typedef struct {
- uint8_t index; /*!<index - A numerical ID for the message set, ideally the index in an array
- * for fast lookup*/
- const std::string name; /*!< name - The name of the message set.*/
- uint8_t busCount; /*!< busCount - The number of CAN buses defined for this message set.*/
- unsigned short messageCount; /*!< messageCount - The number of CAN messages (across all buses) defined for
- * this message set.*/
- unsigned short signalCount; /*!< signalCount - The number of CAN signals (across all messages) defined for
- * this message set.*/
- unsigned short commandCount; /*!< commandCount - The number of CanCommmands defined for this message set.*/
-} CanMessageSet;
-
-/** Public: Return the currently active CAN configuration. */
-CanMessageSet* getActiveMessageSet();
-
-/** Public: Retrive a list of all possible CAN configurations.
- *
- * Returns a pointer to an array of all configurations.
- */
-CanMessageSet* getMessageSets();
-
-/** Public: Return the length of the array returned by getMessageSets() */
-int getMessageSetCount();
-
-/* Public: Return an array of all CAN messages to be processed in the active
- * configuration.
- */
-CanMessageDefinition* getMessages();
-
-/* Public: Return the length of the array returned by getMessages(). */
-int getMessageCount(); \ No newline at end of file