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-rw-r--r--low-can-binding/can/can-message.cpp264
1 files changed, 0 insertions, 264 deletions
diff --git a/low-can-binding/can/can-message.cpp b/low-can-binding/can/can-message.cpp
deleted file mode 100644
index f61de67..0000000
--- a/low-can-binding/can/can-message.cpp
+++ /dev/null
@@ -1,264 +0,0 @@
-/*
- * 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.
- */
-
-#include "can-message.hpp"
-
-#include <cstring>
-
-#include "../low-can-binding.hpp"
-
-///
-/// @brief Class constructor
-///
-/// Constructor about can_message_t class.
-///
-can_message_t::can_message_t()
- : maxdlen_{0}, id_{0}, length_{0}, format_{can_message_format_t::ERROR}, rtr_flag_{false}, flags_{0}
-{}
-
-can_message_t::can_message_t(uint8_t maxdlen,
- uint32_t id,
- uint8_t length,
- can_message_format_t format,
- bool rtr_flag,
- uint8_t flags,
- std::vector<uint8_t> data)
- : maxdlen_{maxdlen},
- id_{id},
- length_{length},
- format_{format},
- rtr_flag_{rtr_flag},
- flags_{flags},
- data_{data}
-{}
-
-///
-/// @brief Retrieve id_ member value.
-///
-/// @return id_ class member
-///
-uint32_t can_message_t::get_id() const
-{
- return id_;
-}
-
-///
-/// @brief Retrieve RTR flag member.
-///
-/// @return rtr_flags_ class member
-///
-bool can_message_t::get_rtr_flag_() const
-{
- return rtr_flag_;
-}
-
-///
-/// @brief Retrieve format_ member value.
-///
-/// @return format_ class member
-///
-can_message_format_t can_message_t::get_format() const
-{
- if (format_ != can_message_format_t::STANDARD || format_ != can_message_format_t::EXTENDED)
- return can_message_format_t::ERROR;
- return format_;
-}
-
-///
-/// @brief Retrieve flags_ member value.
-///
-/// @return flags_ class member
-///
-uint8_t can_message_t::get_flags() const
-{
- return flags_;
-}
-
-///
-/// @brief Retrieve data_ member value.
-///
-/// @return pointer to the first element
-/// of class member data_
-///
-const uint8_t* can_message_t::get_data() const
-{
- return data_.data();
-}
-
-///
-/// @brief Retrieve length_ member value.
-///
-/// @return length_ class member
-///
-uint8_t can_message_t::get_length() const
-{
- return length_;
-}
-
-///
-/// @brief Control whether the object is correctly initialized
-/// to be sent over the CAN bus
-///
-/// @return true if object correctly initialized and false if not.
-///
-bool can_message_t::is_correct_to_send()
-{
- if (id_ != 0 && length_ != 0 && format_ != can_message_format_t::ERROR)
- {
- int i;
- for(i=0;i<CAN_MESSAGE_SIZE;i++)
- if(data_[i] != 0)
- return true;
- }
- return false;
-}
-
-///
-/// @brief Set format_ member value.
-///
-/// Preferred way to initialize these members by using
-/// convert_from_canfd_frame method.
-///
-/// @param[in] new_format - class member
-///
-void can_message_t::set_format(const can_message_format_t new_format)
-{
- if(new_format == can_message_format_t::STANDARD || new_format == can_message_format_t::EXTENDED || new_format == can_message_format_t::ERROR)
- format_ = new_format;
- else
- ERROR(binder_interface, "ERROR: Can set format, wrong format chosen");
-}
-
-///
-/// @brief Take a canfd_frame struct to initialize class members
-///
-/// This is the preferred way to initialize class members.
-///
-/// @param[in] frame - canfd_frame to convert coming from a read of CAN socket
-/// @param[in] nbytes - bytes read from socket read operation.
-///
-/// @return A can_message_t object fully initialized with canfd_frame values.
-///
-can_message_t can_message_t::convert_from_canfd_frame(const struct canfd_frame& frame, size_t nbytes)
-{
- uint8_t maxdlen, length, flags = (uint8_t)NULL;
- uint32_t id;
- can_message_format_t format;
- bool rtr_flag;
- std::vector<uint8_t> data;
-
- switch(nbytes)
- {
- case CANFD_MTU:
- DEBUG(binder_interface, "set_max_data_length: Got an CAN FD frame");
- maxdlen = CANFD_MAX_DLEN;
- break;
- case CAN_MTU:
- DEBUG(binder_interface, "set_max_data_length: Got a legacy CAN frame");
- maxdlen = CAN_MAX_DLEN;
- break;
- default:
- ERROR(binder_interface, "set_max_data_length: unsupported CAN frame");
- break;
- }
-
- if (frame.can_id & CAN_ERR_FLAG)
- format = can_message_format_t::ERROR;
- else if (frame.can_id & CAN_EFF_FLAG)
- format = can_message_format_t::EXTENDED;
- else
- format = can_message_format_t::STANDARD;
-
- switch(format)
- {
- case can_message_format_t::STANDARD:
- id = frame.can_id & CAN_SFF_MASK;
- break;
- case can_message_format_t::EXTENDED:
- id = frame.can_id & CAN_EFF_MASK;
- break;
- case can_message_format_t::ERROR:
- id = frame.can_id & (CAN_ERR_MASK|CAN_ERR_FLAG);
- break;
- default:
- ERROR(binder_interface, "ERROR: Can set id, not a compatible format or format not set prior to set id.");
- break;
- }
-
- /* Overwrite length_ if RTR flags is detected.
- * standard CAN frames may have RTR enabled. There are no ERR frames with RTR */
- if (frame.can_id & CAN_RTR_FLAG)
- {
- rtr_flag = true;
- if(frame.len && frame.len <= CAN_MAX_DLC)
- {
- if(rtr_flag)
- length = frame.len& 0xF;
- else
- {
- length = (frame.len > maxdlen) ? maxdlen : frame.len;
- }
- }
- }
- else
- {
- length = (frame.len > maxdlen) ? maxdlen : frame.len;
-
- /* Flags field only present for CAN FD frames*/
- if(maxdlen == CANFD_MAX_DLEN)
- flags = frame.flags & 0xF;
-
- if (data.capacity() < maxdlen)
- data.reserve(maxdlen);
- int i;
-
- data.clear();
- /* maxdlen_ is now set at CAN_MAX_DLEN or CANFD_MAX_DLEN, respectively 8 and 64 bytes*/
- for(i=0;i<maxdlen;i++)
- {
- data.push_back(frame.data[i]);
- };
-
- DEBUG(binder_interface, "convert_from_canfd_frame: Found id: %X, format: %X, length: %X, data %02X%02X%02X%02X%02X%02X%02X%02X",
- id, (uint8_t)format, length, data[0], data[1], data[2], data[3], data[4], data[5], data[6], data[7]);
- }
-
- return can_message_t(maxdlen, id, length, format, rtr_flag, flags, data);
-}
-
-///
-/// @brief Take all initialized class's members and build an
-/// canfd_frame struct that can be use to send a CAN message over
-/// the bus.
-///
-/// @return canfd_frame struct built from class members.
-///
-canfd_frame can_message_t::convert_to_canfd_frame()
-{
- canfd_frame frame;
-
- if(is_correct_to_send())
- {
- frame.can_id = get_id();
- frame.len = get_length();
- ::memcpy(frame.data, get_data(), length_);
- }
- else
- ERROR(binder_interface, "can_message_t not correctly initialized to be sent");
-
- return frame;
-}