Aleksandrs Gumenuks / MaximInterface_Extended

Extended MaximInterface

Dependents:   mbed_DS28EC20_GPIO

Links/OneWireMaster.cpp@0:f77ad7f72d04, 2017-11-06 (annotated)

Committer:
IanBenzMaxim
Date:
Mon Nov 06 14:39:18 2017 -0600
Revision:
0:f77ad7f72d04
Child:
6:a8c83a2e6fa4
Initial commit.

Who changed what in which revision?

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IanBenzMaxim 0:f77ad7f72d04 1 /*******************************************************************************
IanBenzMaxim 0:f77ad7f72d04 2 * Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved.
IanBenzMaxim 0:f77ad7f72d04 3 *
IanBenzMaxim 0:f77ad7f72d04 4 * Permission is hereby granted, free of charge, to any person obtaining a
IanBenzMaxim 0:f77ad7f72d04 5 * copy of this software and associated documentation files (the "Software"),
IanBenzMaxim 0:f77ad7f72d04 6 * to deal in the Software without restriction, including without limitation
IanBenzMaxim 0:f77ad7f72d04 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
IanBenzMaxim 0:f77ad7f72d04 8 * and/or sell copies of the Software, and to permit persons to whom the
IanBenzMaxim 0:f77ad7f72d04 9 * Software is furnished to do so, subject to the following conditions:
IanBenzMaxim 0:f77ad7f72d04 10 *
IanBenzMaxim 0:f77ad7f72d04 11 * The above copyright notice and this permission notice shall be included
IanBenzMaxim 0:f77ad7f72d04 12 * in all copies or substantial portions of the Software.
IanBenzMaxim 0:f77ad7f72d04 13 *
IanBenzMaxim 0:f77ad7f72d04 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
IanBenzMaxim 0:f77ad7f72d04 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
IanBenzMaxim 0:f77ad7f72d04 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IanBenzMaxim 0:f77ad7f72d04 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
IanBenzMaxim 0:f77ad7f72d04 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
IanBenzMaxim 0:f77ad7f72d04 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
IanBenzMaxim 0:f77ad7f72d04 20 * OTHER DEALINGS IN THE SOFTWARE.
IanBenzMaxim 0:f77ad7f72d04 21 *
IanBenzMaxim 0:f77ad7f72d04 22 * Except as contained in this notice, the name of Maxim Integrated
IanBenzMaxim 0:f77ad7f72d04 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
IanBenzMaxim 0:f77ad7f72d04 24 * Products, Inc. Branding Policy.
IanBenzMaxim 0:f77ad7f72d04 25 *
IanBenzMaxim 0:f77ad7f72d04 26 * The mere transfer of this software does not imply any licenses
IanBenzMaxim 0:f77ad7f72d04 27 * of trade secrets, proprietary technology, copyrights, patents,
IanBenzMaxim 0:f77ad7f72d04 28 * trademarks, maskwork rights, or any other form of intellectual
IanBenzMaxim 0:f77ad7f72d04 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
IanBenzMaxim 0:f77ad7f72d04 30 * ownership rights.
IanBenzMaxim 0:f77ad7f72d04 31 *******************************************************************************/
IanBenzMaxim 0:f77ad7f72d04 32
IanBenzMaxim 0:f77ad7f72d04 33 #include <MaximInterface/Utilities/Error.hpp>
IanBenzMaxim 0:f77ad7f72d04 34 #include "OneWireMaster.hpp"
IanBenzMaxim 0:f77ad7f72d04 35
IanBenzMaxim 0:f77ad7f72d04 36 namespace MaximInterface {
IanBenzMaxim 0:f77ad7f72d04 37
IanBenzMaxim 0:f77ad7f72d04 38 error_code OneWireMaster::writeByteSetLevel(uint_least8_t sendByte,
IanBenzMaxim 0:f77ad7f72d04 39 Level afterLevel) {
IanBenzMaxim 0:f77ad7f72d04 40 error_code result;
IanBenzMaxim 0:f77ad7f72d04 41 for (int idx = 0; (idx < 8) && !result; idx++) {
IanBenzMaxim 0:f77ad7f72d04 42 result = writeBit(((sendByte >> idx) & 1) == 1);
IanBenzMaxim 0:f77ad7f72d04 43 }
IanBenzMaxim 0:f77ad7f72d04 44 if (!result) {
IanBenzMaxim 0:f77ad7f72d04 45 result = setLevel(afterLevel);
IanBenzMaxim 0:f77ad7f72d04 46 }
IanBenzMaxim 0:f77ad7f72d04 47 return result;
IanBenzMaxim 0:f77ad7f72d04 48 }
IanBenzMaxim 0:f77ad7f72d04 49
IanBenzMaxim 0:f77ad7f72d04 50 error_code OneWireMaster::readByteSetLevel(uint_least8_t & recvByte,
IanBenzMaxim 0:f77ad7f72d04 51 Level afterLevel) {
IanBenzMaxim 0:f77ad7f72d04 52 recvByte = 0;
IanBenzMaxim 0:f77ad7f72d04 53 error_code result;
IanBenzMaxim 0:f77ad7f72d04 54 for (int idx = 0; idx < 8; idx++) {
IanBenzMaxim 0:f77ad7f72d04 55 bool recvBit;
IanBenzMaxim 0:f77ad7f72d04 56 result = readBit(recvBit);
IanBenzMaxim 0:f77ad7f72d04 57 if (result) {
IanBenzMaxim 0:f77ad7f72d04 58 break;
IanBenzMaxim 0:f77ad7f72d04 59 }
IanBenzMaxim 0:f77ad7f72d04 60 if (recvBit) {
IanBenzMaxim 0:f77ad7f72d04 61 recvByte |= (1 << idx);
IanBenzMaxim 0:f77ad7f72d04 62 }
IanBenzMaxim 0:f77ad7f72d04 63 }
IanBenzMaxim 0:f77ad7f72d04 64 if (!result) {
IanBenzMaxim 0:f77ad7f72d04 65 result = setLevel(afterLevel);
IanBenzMaxim 0:f77ad7f72d04 66 }
IanBenzMaxim 0:f77ad7f72d04 67 return result;
IanBenzMaxim 0:f77ad7f72d04 68 }
IanBenzMaxim 0:f77ad7f72d04 69
IanBenzMaxim 0:f77ad7f72d04 70 error_code OneWireMaster::writeBlock(const uint_least8_t * sendBuf,
IanBenzMaxim 0:f77ad7f72d04 71 size_t sendLen) {
IanBenzMaxim 0:f77ad7f72d04 72 error_code result;
IanBenzMaxim 0:f77ad7f72d04 73 for (size_t idx = 0; (idx < sendLen) && !result; idx++) {
IanBenzMaxim 0:f77ad7f72d04 74 result = writeByte(sendBuf[idx]);
IanBenzMaxim 0:f77ad7f72d04 75 }
IanBenzMaxim 0:f77ad7f72d04 76 return result;
IanBenzMaxim 0:f77ad7f72d04 77 }
IanBenzMaxim 0:f77ad7f72d04 78
IanBenzMaxim 0:f77ad7f72d04 79 error_code OneWireMaster::readBlock(uint_least8_t * recvBuf, size_t recvLen) {
IanBenzMaxim 0:f77ad7f72d04 80 error_code result;
IanBenzMaxim 0:f77ad7f72d04 81 for (size_t idx = 0; (idx < recvLen) && !result; idx++) {
IanBenzMaxim 0:f77ad7f72d04 82 result = readByte(recvBuf[idx]);
IanBenzMaxim 0:f77ad7f72d04 83 }
IanBenzMaxim 0:f77ad7f72d04 84 return result;
IanBenzMaxim 0:f77ad7f72d04 85 }
IanBenzMaxim 0:f77ad7f72d04 86
IanBenzMaxim 0:f77ad7f72d04 87 error_code OneWireMaster::triplet(TripletData & data) {
IanBenzMaxim 0:f77ad7f72d04 88 error_code result = readBit(data.readBit);
IanBenzMaxim 0:f77ad7f72d04 89 if (!result) {
IanBenzMaxim 0:f77ad7f72d04 90 result = readBit(data.readBitComplement);
IanBenzMaxim 0:f77ad7f72d04 91 }
IanBenzMaxim 0:f77ad7f72d04 92 if (!result) {
IanBenzMaxim 0:f77ad7f72d04 93 if (data.readBit) {
IanBenzMaxim 0:f77ad7f72d04 94 data.writeBit = 1;
IanBenzMaxim 0:f77ad7f72d04 95 } else if (data.readBitComplement) {
IanBenzMaxim 0:f77ad7f72d04 96 data.writeBit = 0;
IanBenzMaxim 0:f77ad7f72d04 97 }
IanBenzMaxim 0:f77ad7f72d04 98 // else: use data.writeBit parameter
IanBenzMaxim 0:f77ad7f72d04 99 result = writeBit(data.writeBit);
IanBenzMaxim 0:f77ad7f72d04 100 }
IanBenzMaxim 0:f77ad7f72d04 101 return result;
IanBenzMaxim 0:f77ad7f72d04 102 }
IanBenzMaxim 0:f77ad7f72d04 103
IanBenzMaxim 0:f77ad7f72d04 104 const error_category & OneWireMaster::errorCategory() {
IanBenzMaxim 0:f77ad7f72d04 105 static class : public error_category {
IanBenzMaxim 0:f77ad7f72d04 106 public:
IanBenzMaxim 0:f77ad7f72d04 107 virtual const char * name() const { return "OneWireMaster"; }
IanBenzMaxim 0:f77ad7f72d04 108
IanBenzMaxim 0:f77ad7f72d04 109 virtual std::string message(int condition) const {
IanBenzMaxim 0:f77ad7f72d04 110 switch (condition) {
IanBenzMaxim 0:f77ad7f72d04 111 case NoSlaveError:
IanBenzMaxim 0:f77ad7f72d04 112 return "No Slave Error";
IanBenzMaxim 0:f77ad7f72d04 113
IanBenzMaxim 0:f77ad7f72d04 114 case ShortDetectedError:
IanBenzMaxim 0:f77ad7f72d04 115 return "Short Detected Error";
IanBenzMaxim 0:f77ad7f72d04 116
IanBenzMaxim 0:f77ad7f72d04 117 case InvalidSpeedError:
IanBenzMaxim 0:f77ad7f72d04 118 return "Invalid Speed Error";
IanBenzMaxim 0:f77ad7f72d04 119
IanBenzMaxim 0:f77ad7f72d04 120 case InvalidLevelError:
IanBenzMaxim 0:f77ad7f72d04 121 return "Invalid Level Error";
IanBenzMaxim 0:f77ad7f72d04 122
IanBenzMaxim 0:f77ad7f72d04 123 default:
IanBenzMaxim 0:f77ad7f72d04 124 return defaultErrorMessage(condition);
IanBenzMaxim 0:f77ad7f72d04 125 }
IanBenzMaxim 0:f77ad7f72d04 126 }
IanBenzMaxim 0:f77ad7f72d04 127 } instance;
IanBenzMaxim 0:f77ad7f72d04 128 return instance;
IanBenzMaxim 0:f77ad7f72d04 129 }
IanBenzMaxim 0:f77ad7f72d04 130
IanBenzMaxim 0:f77ad7f72d04 131 } // namespace MaximInterface