AnalogIn.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/AnalogIn.h"
00019 
00020 #if DEVICE_ANALOGIN
00021 
00022 namespace mbed {
00023 
00024 SingletonPtr<PlatformMutex>  AnalogIn::_mutex;
00025 
00026 AnalogIn::AnalogIn(PinName pin)
00027 {
00028     lock();
00029     analogin_init(&_adc, pin);
00030     unlock();
00031 }
00032 
00033 AnalogIn::AnalogIn(const PinMap &pinmap)
00034 {
00035     lock();
00036     analogin_init_direct(&_adc, &pinmap);
00037     unlock();
00038 }
00039 
00040 
00041 float AnalogIn::read()
00042 {
00043     lock();
00044     float ret = analogin_read(&_adc);
00045     unlock();
00046     return ret;
00047 }
00048 
00049 unsigned short AnalogIn::read_u16()
00050 {
00051     lock();
00052     unsigned short ret = analogin_read_u16(&_adc);
00053     unlock();
00054     return ret;
00055 }
00056 
00057 } // namespace mbed
00058 
00059 #endif