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BusIn.cpp
00001 /* mbed Microcontroller Library 00002 * Copyright (c) 2006-2013 ARM Limited 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 #include "BusIn.h" 00017 00018 namespace mbed { 00019 00020 BusIn::BusIn(PinName p0, PinName p1, PinName p2, PinName p3, PinName p4, PinName p5, PinName p6, PinName p7, PinName p8, PinName p9, PinName p10, PinName p11, PinName p12, PinName p13, PinName p14, PinName p15) { 00021 PinName pins[16] = {p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, p11, p12, p13, p14, p15}; 00022 00023 for (int i=0; i<16; i++) { 00024 _pin[i] = (pins[i] != NC) ? new DigitalIn(pins[i]) : 0; 00025 } 00026 } 00027 00028 BusIn::BusIn(PinName pins[16]) { 00029 for (int i=0; i<16; i++) { 00030 _pin[i] = (pins[i] != NC) ? new DigitalIn(pins[i]) : 0; 00031 } 00032 } 00033 00034 BusIn::~BusIn() { 00035 for (int i=0; i<16; i++) { 00036 if (_pin[i] != 0) { 00037 delete _pin[i]; 00038 } 00039 } 00040 } 00041 00042 int BusIn::read() { 00043 int v = 0; 00044 for (int i=0; i<16; i++) { 00045 if (_pin[i] != 0) { 00046 v |= _pin[i]->read() << i; 00047 } 00048 } 00049 return v; 00050 } 00051 00052 #ifdef MBED_OPERATORS 00053 BusIn::operator int() { 00054 return read(); 00055 } 00056 #endif 00057 00058 } // namespace mbed
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