DigitalInOut.cpp

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2006-2019 ARM Limited
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License");
00006  * you may not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  *     http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS,
00013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 
00018 #include "drivers/DigitalInOut.h"
00019 
00020 #include "platform/mbed_critical.h"
00021 
00022 namespace mbed {
00023 
00024 void DigitalInOut::output()
00025 {
00026     core_util_critical_section_enter();
00027     gpio_dir(&gpio, PIN_OUTPUT);
00028     core_util_critical_section_exit();
00029 }
00030 
00031 void DigitalInOut::input()
00032 {
00033     core_util_critical_section_enter();
00034     gpio_dir(&gpio, PIN_INPUT);
00035     core_util_critical_section_exit();
00036 }
00037 
00038 void DigitalInOut::mode(PinMode pull)
00039 {
00040     core_util_critical_section_enter();
00041     gpio_mode(&gpio, pull);
00042     core_util_critical_section_exit();
00043 }
00044 
00045 DigitalInOut &DigitalInOut::operator= (DigitalInOut &rhs)
00046 {
00047     core_util_critical_section_enter();
00048     write(rhs.read());
00049     core_util_critical_section_exit();
00050     return *this;
00051 }
00052 
00053 } // namespace mbed