Extended MaximInterface
Dependents: mbed_DS28EC20_GPIO
Diff: Links/OneWireMaster.cpp
- Revision:
- 0:f77ad7f72d04
- Child:
- 6:a8c83a2e6fa4
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Links/OneWireMaster.cpp Mon Nov 06 14:39:18 2017 -0600 @@ -0,0 +1,131 @@ +/******************************************************************************* +* 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