mirror of https://github.com/ARMmbed/mbed-os.git
41 lines
1.4 KiB
C++
41 lines
1.4 KiB
C++
/* mbed Microcontroller Library
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* Copyright (c) 2006-2019 ARM Limited
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "drivers/RawCan.h"
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#if DEVICE_CAN
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#include "platform/mbed_power_mgmt.h"
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namespace mbed {
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RawCAN::RawCAN(PinName rd, PinName td): CAN(rd, td) {}
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RawCAN::RawCAN(PinName rd, PinName td, int hz): CAN(rd, td, hz) {}
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/* There are situations where the RX interrupt of CAN are cleared only by
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* CAN read operations and locks are not allowed in ISR context in mbed
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* hence this provides an unlocked read to resolve such problem without
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* any effect on the performance. This will work only in case of a single
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* thread accessing a CAN instance, multiple threads will lead to race conditions
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*/
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int RawCAN::read(CANMessage &msg, int handle){
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int ret = can_read(&_can, &msg, handle);
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return ret;
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}
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} // namespace
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#endif //DEVICE_CAN
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