Extended MaximInterface
Dependents: mbed_DS28EC20_GPIO
Diff: Links/I2CMaster.cpp
- Revision:
- 0:f77ad7f72d04
- Child:
- 3:f818ea5172ed
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Links/I2CMaster.cpp Mon Nov 06 14:39:18 2017 -0600 @@ -0,0 +1,104 @@ +/******************************************************************************* +* 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 "I2CMaster.hpp" + +namespace MaximInterface { + +error_code I2CMaster::writeBlock(const uint_least8_t * data, size_t dataLen) { + error_code result; + for (size_t i = 0; (i < dataLen) && !result; i++) { + result = writeByte(data[i]); + } + return result; +} + +error_code I2CMaster::writePacket(uint_least8_t address, + const uint_least8_t * data, size_t dataLen, + bool sendStop) { + error_code result = start(address & 0xFE); + if (!result) { + result = writeBlock(data, dataLen); + } + if (sendStop) { + error_code stopResult = stop(); + if (!result) { + result = stopResult; + } + } + return result; +} + +error_code I2CMaster::readBlock(AckStatus status, uint_least8_t * data, + size_t dataLen) { + error_code result; + for (size_t i = 0; (i < dataLen) && !result; i++) { + result = readByte(i == (dataLen - 1) ? status : Ack, data[i]); + } + return result; +} + +error_code I2CMaster::readPacket(uint_least8_t address, uint_least8_t * data, + size_t dataLen, bool sendStop) { + error_code result = start(address | 0x01); + if (!result) { + result = readBlock(Nack, data, dataLen); + } + if (sendStop) { + error_code stopResult = stop(); + if (!result) { + result = stopResult; + } + } + return result; +} + +const error_category & I2CMaster::errorCategory() { + static class : public error_category { + public: + virtual const char * name() const { return "I2CMaster"; } + + virtual std::string message(int condition) const { + switch (condition) { + case NackError: + return "Nack Error"; + + default: + return defaultErrorMessage(condition); + } + } + } instance; + return instance; +} + +} // namespace MaximInterface \ No newline at end of file