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Dependents: DeepCover Embedded Security in IoT MaximInterface MAXREFDES155#
Links/OneWireMaster.cpp
- Committer:
- IanBenzMaxim
- Date:
- 2017-11-06
- Revision:
- 0:f77ad7f72d04
- Child:
- 5:a8c83a2e6fa4
File content as of revision 0:f77ad7f72d04:
/*******************************************************************************
* Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name of Maxim Integrated
* Products, Inc. shall not be used except as stated in the Maxim Integrated
* Products, Inc. Branding Policy.
*
* The mere transfer of this software does not imply any licenses
* of trade secrets, proprietary technology, copyrights, patents,
* trademarks, maskwork rights, or any other form of intellectual
* property whatsoever. Maxim Integrated Products, Inc. retains all
* ownership rights.
*******************************************************************************/
#include <MaximInterface/Utilities/Error.hpp>
#include "OneWireMaster.hpp"
namespace MaximInterface {
error_code OneWireMaster::writeByteSetLevel(uint_least8_t sendByte,
Level afterLevel) {
error_code result;
for (int idx = 0; (idx < 8) && !result; idx++) {
result = writeBit(((sendByte >> idx) & 1) == 1);
}
if (!result) {
result = setLevel(afterLevel);
}
return result;
}
error_code OneWireMaster::readByteSetLevel(uint_least8_t & recvByte,
Level afterLevel) {
recvByte = 0;
error_code result;
for (int idx = 0; idx < 8; idx++) {
bool recvBit;
result = readBit(recvBit);
if (result) {
break;
}
if (recvBit) {
recvByte |= (1 << idx);
}
}
if (!result) {
result = setLevel(afterLevel);
}
return result;
}
error_code OneWireMaster::writeBlock(const uint_least8_t * sendBuf,
size_t sendLen) {
error_code result;
for (size_t idx = 0; (idx < sendLen) && !result; idx++) {
result = writeByte(sendBuf[idx]);
}
return result;
}
error_code OneWireMaster::readBlock(uint_least8_t * recvBuf, size_t recvLen) {
error_code result;
for (size_t idx = 0; (idx < recvLen) && !result; idx++) {
result = readByte(recvBuf[idx]);
}
return result;
}
error_code OneWireMaster::triplet(TripletData & data) {
error_code result = readBit(data.readBit);
if (!result) {
result = readBit(data.readBitComplement);
}
if (!result) {
if (data.readBit) {
data.writeBit = 1;
} else if (data.readBitComplement) {
data.writeBit = 0;
}
// else: use data.writeBit parameter
result = writeBit(data.writeBit);
}
return result;
}
const error_category & OneWireMaster::errorCategory() {
static class : public error_category {
public:
virtual const char * name() const { return "OneWireMaster"; }
virtual std::string message(int condition) const {
switch (condition) {
case NoSlaveError:
return "No Slave Error";
case ShortDetectedError:
return "Short Detected Error";
case InvalidSpeedError:
return "Invalid Speed Error";
case InvalidLevelError:
return "Invalid Level Error";
default:
return defaultErrorMessage(condition);
}
}
} instance;
return instance;
}
} // namespace MaximInterface