Jonathan Piat / mbed-src

mbed library sources

Fork of mbed-src by mbed official

common/BusOut.cpp@9:0ce32e54c9a7, 2013-06-10 (annotated)

Committer:
emilmont
Date:
Mon Jun 10 16:03:00 2013 +0100
Revision:
9:0ce32e54c9a7
Parent:
cpp/BusOut.cpp@2:143cac498751
Child:
10:3bc89ef62ce7
Refactoring of the mbed SDK:

- Provide a well defined HAL and API

- Keep separated the HAL implementations for the different targets

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:fd0d7bdfcdc2 1 /* mbed Microcontroller Library
emilmont 2:143cac498751 2 * Copyright (c) 2006-2013 ARM Limited
mbed_official 0:fd0d7bdfcdc2 3 *
emilmont 2:143cac498751 4 * Licensed under the Apache License, Version 2.0 (the "License");
emilmont 2:143cac498751 5 * you may not use this file except in compliance with the License.
emilmont 2:143cac498751 6 * You may obtain a copy of the License at
mbed_official 0:fd0d7bdfcdc2 7 *
emilmont 2:143cac498751 8 * http://www.apache.org/licenses/LICENSE-2.0
mbed_official 0:fd0d7bdfcdc2 9 *
emilmont 2:143cac498751 10 * Unless required by applicable law or agreed to in writing, software
emilmont 2:143cac498751 11 * distributed under the License is distributed on an "AS IS" BASIS,
emilmont 2:143cac498751 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
emilmont 2:143cac498751 13 * See the License for the specific language governing permissions and
emilmont 2:143cac498751 14 * limitations under the License.
mbed_official 0:fd0d7bdfcdc2 15 */
mbed_official 0:fd0d7bdfcdc2 16 #include "BusOut.h"
mbed_official 0:fd0d7bdfcdc2 17
mbed_official 0:fd0d7bdfcdc2 18 namespace mbed {
mbed_official 0:fd0d7bdfcdc2 19
mbed_official 0:fd0d7bdfcdc2 20 BusOut::BusOut(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) {
mbed_official 0:fd0d7bdfcdc2 21 PinName pins[16] = {p0, p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, p11, p12, p13, p14, p15};
emilmont 2:143cac498751 22
mbed_official 0:fd0d7bdfcdc2 23 for (int i=0; i<16; i++) {
mbed_official 0:fd0d7bdfcdc2 24 _pin[i] = (pins[i] != NC) ? new DigitalOut(pins[i]) : 0;
mbed_official 0:fd0d7bdfcdc2 25 }
mbed_official 0:fd0d7bdfcdc2 26 }
mbed_official 0:fd0d7bdfcdc2 27
mbed_official 0:fd0d7bdfcdc2 28 BusOut::BusOut(PinName pins[16]) {
mbed_official 0:fd0d7bdfcdc2 29 for (int i=0; i<16; i++) {
mbed_official 0:fd0d7bdfcdc2 30 _pin[i] = (pins[i] != NC) ? new DigitalOut(pins[i]) : 0;
mbed_official 0:fd0d7bdfcdc2 31 }
mbed_official 0:fd0d7bdfcdc2 32 }
mbed_official 0:fd0d7bdfcdc2 33
mbed_official 0:fd0d7bdfcdc2 34 BusOut::~BusOut() {
mbed_official 0:fd0d7bdfcdc2 35 for (int i=0; i<16; i++) {
mbed_official 0:fd0d7bdfcdc2 36 if (_pin[i] != 0) {
mbed_official 0:fd0d7bdfcdc2 37 delete _pin[i];
mbed_official 0:fd0d7bdfcdc2 38 }
mbed_official 0:fd0d7bdfcdc2 39 }
mbed_official 0:fd0d7bdfcdc2 40 }
mbed_official 0:fd0d7bdfcdc2 41
mbed_official 0:fd0d7bdfcdc2 42 void BusOut::write(int value) {
mbed_official 0:fd0d7bdfcdc2 43 for (int i=0; i<16; i++) {
mbed_official 0:fd0d7bdfcdc2 44 if (_pin[i] != 0) {
mbed_official 0:fd0d7bdfcdc2 45 _pin[i]->write((value >> i) & 1);
mbed_official 0:fd0d7bdfcdc2 46 }
mbed_official 0:fd0d7bdfcdc2 47 }
mbed_official 0:fd0d7bdfcdc2 48 }
mbed_official 0:fd0d7bdfcdc2 49
mbed_official 0:fd0d7bdfcdc2 50 int BusOut::read() {
mbed_official 0:fd0d7bdfcdc2 51 int v = 0;
mbed_official 0:fd0d7bdfcdc2 52 for (int i=0; i<16; i++) {
mbed_official 0:fd0d7bdfcdc2 53 if (_pin[i] != 0) {
mbed_official 0:fd0d7bdfcdc2 54 v |= _pin[i]->read() << i;
mbed_official 0:fd0d7bdfcdc2 55 }
mbed_official 0:fd0d7bdfcdc2 56 }
mbed_official 0:fd0d7bdfcdc2 57 return v;
mbed_official 0:fd0d7bdfcdc2 58 }
mbed_official 0:fd0d7bdfcdc2 59
mbed_official 0:fd0d7bdfcdc2 60 #ifdef MBED_OPERATORS
mbed_official 0:fd0d7bdfcdc2 61 BusOut& BusOut::operator= (int v) {
mbed_official 0:fd0d7bdfcdc2 62 write(v);
mbed_official 0:fd0d7bdfcdc2 63 return *this;
mbed_official 0:fd0d7bdfcdc2 64 }
mbed_official 0:fd0d7bdfcdc2 65
mbed_official 0:fd0d7bdfcdc2 66 BusOut& BusOut::operator= (BusOut& rhs) {
mbed_official 0:fd0d7bdfcdc2 67 write(rhs.read());
mbed_official 0:fd0d7bdfcdc2 68 return *this;
mbed_official 0:fd0d7bdfcdc2 69 }
mbed_official 0:fd0d7bdfcdc2 70
mbed_official 0:fd0d7bdfcdc2 71 BusOut::operator int() {
mbed_official 0:fd0d7bdfcdc2 72 return read();
mbed_official 0:fd0d7bdfcdc2 73 }
mbed_official 0:fd0d7bdfcdc2 74 #endif
mbed_official 0:fd0d7bdfcdc2 75
mbed_official 0:fd0d7bdfcdc2 76 } // namespace mbed