PokittoLib is the library needed for programming the Pokitto DIY game console (www.pokitto.com)
Dependents: YATTT sd_map_test cPong SnowDemo ... more
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 #include "mbed_assert.h" 00018 00019 namespace mbed { 00020 00021 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) { 00022 PinName pins[16] = {p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, p11, p12, p13, p14, p15}; 00023 00024 _nc_mask = 0; 00025 for (int i=0; i<16; i++) { 00026 _pin[i] = (pins[i] != NC) ? new DigitalIn(pins[i]) : 0; 00027 if (pins[i] != NC) { 00028 _nc_mask |= (1 << i); 00029 } 00030 } 00031 } 00032 00033 BusIn::BusIn(PinName pins[16]) { 00034 _nc_mask = 0; 00035 for (int i=0; i<16; i++) { 00036 _pin[i] = (pins[i] != NC) ? new DigitalIn(pins[i]) : 0; 00037 if (pins[i] != NC) { 00038 _nc_mask |= (1 << i); 00039 } 00040 } 00041 } 00042 00043 BusIn::~BusIn() { 00044 for (int i=0; i<16; i++) { 00045 if (_pin[i] != 0) { 00046 delete _pin[i]; 00047 } 00048 } 00049 } 00050 00051 int BusIn::read() { 00052 int v = 0; 00053 for (int i=0; i<16; i++) { 00054 if (_pin[i] != 0) { 00055 v |= _pin[i]->read() << i; 00056 } 00057 } 00058 return v; 00059 } 00060 00061 void BusIn::mode(PinMode pull) { 00062 for (int i=0; i<16; i++) { 00063 if (_pin[i] != 0) { 00064 _pin[i]->mode(pull); 00065 } 00066 } 00067 } 00068 00069 #ifdef MBED_OPERATORS 00070 BusIn::operator int() { 00071 return read(); 00072 } 00073 00074 DigitalIn& BusIn::operator[] (int index) { 00075 MBED_ASSERT(index >= 0 && index <= 16); 00076 MBED_ASSERT(_pin[index]); 00077 return *_pin[index]; 00078 } 00079 00080 #endif 00081 00082 } // namespace mbed
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