Device interface library for multiple platforms including Mbed.

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Maxim Interface is a library framework focused on providing flexible and expressive hardware interfaces. Both communication interfaces such as I2C and 1-Wire and device interfaces such as DS18B20 are supported. Modern C++ concepts are used extensively while keeping compatibility with C++98/C++03 and requiring no external dependencies. The embedded-friendly design does not depend on exceptions or RTTI.

The full version of the project is hosted on GitLab: https://gitlab.com/iabenz/MaximInterface

MaximInterfaceDevices/DS9481P_300.cpp

Committer:
IanBenzMaxim
Date:
2019-07-22
Revision:
7:9cd16581b578
Child:
8:5ea891c7d1a1

File content as of revision 7:9cd16581b578:

/*******************************************************************************
* Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved.
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* OTHER DEALINGS IN THE SOFTWARE.
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#include <MaximInterfaceCore/Error.hpp>
#include "DS9481P_300.hpp"

namespace MaximInterfaceDevices {

using namespace Core;

DS9481P_300::DS9481P_300(Sleep & sleep, SerialPort & serialPort)
    : serialPort(&serialPort), currentBus(OneWire), ds2480b(sleep, serialPort),
      oneWireMaster_(*this), ds9400(serialPort), i2cMaster_(*this) {}

error_code DS9481P_300::connect(const std::string & portName) {
  error_code result = serialPort->connect(portName);
  if (!result) {
    result = selectOneWire();
    if (result) {
      serialPort->disconnect();
    } else {
      currentBus = OneWire;
    }
  }
  return result;
}

error_code DS9481P_300::disconnect() { return serialPort->disconnect(); }

bool DS9481P_300::connected() const { return serialPort->connected(); }

std::string DS9481P_300::portName() const { return serialPort->portName(); }

error_code DS9481P_300::selectOneWire() {
  // Escape DS9400 mode.
  error_code result = ds9400.escape();
  if (!result) {
    result = ds2480b.initialize();
  }
  return result;
}

error_code DS9481P_300::selectBus(Bus newBus) {
  error_code result;
  if (currentBus != newBus) {
    switch (currentBus) {
    case OneWire: // Next bus I2C.
      // Escape DS2480 Mode.
      result = ds2480b.escape();
      if (!result) {
        // Wait for awake notification.
        result = ds9400.waitAwake();
      }
      break;

    case I2C: // Next bus OneWire.
      result = selectOneWire();
      break;
    }
    if (!result) {
      currentBus = newBus;
    }
  }
  return result;
}

error_code DS9481P_300::OneWireMaster::reset() {
  error_code result = parent->selectBus(OneWire);
  if (!result) {
    result = OneWireMasterDecorator::reset();
  }
  return result;
}

error_code DS9481P_300::OneWireMaster::touchBitSetLevel(bool & sendRecvBit,
                                                        Level afterLevel) {
  error_code result = parent->selectBus(OneWire);
  if (!result) {
    result = OneWireMasterDecorator::touchBitSetLevel(sendRecvBit, afterLevel);
  }
  return result;
}

error_code DS9481P_300::OneWireMaster::writeByteSetLevel(uint_least8_t sendByte,
                                                         Level afterLevel) {
  error_code result = parent->selectBus(OneWire);
  if (!result) {
    result = OneWireMasterDecorator::writeByteSetLevel(sendByte, afterLevel);
  }
  return result;
}

error_code
DS9481P_300::OneWireMaster::readByteSetLevel(uint_least8_t & recvByte,
                                             Level afterLevel) {
  error_code result = parent->selectBus(OneWire);
  if (!result) {
    result = OneWireMasterDecorator::readByteSetLevel(recvByte, afterLevel);
  }
  return result;
}

error_code
DS9481P_300::OneWireMaster::writeBlock(span<const uint_least8_t> sendBuf) {
  error_code result = parent->selectBus(OneWire);
  if (!result) {
    result = OneWireMasterDecorator::writeBlock(sendBuf);
  }
  return result;
}

error_code DS9481P_300::OneWireMaster::readBlock(span<uint_least8_t> recvBuf) {
  error_code result = parent->selectBus(OneWire);
  if (!result) {
    result = OneWireMasterDecorator::readBlock(recvBuf);
  }
  return result;
}

error_code DS9481P_300::OneWireMaster::setSpeed(Speed newSpeed) {
  error_code result = parent->selectBus(OneWire);
  if (!result) {
    result = OneWireMasterDecorator::setSpeed(newSpeed);
  }
  return result;
}

error_code DS9481P_300::OneWireMaster::setLevel(Level newLevel) {
  error_code result = parent->selectBus(OneWire);
  if (!result) {
    result = OneWireMasterDecorator::setLevel(newLevel);
  }
  return result;
}

error_code DS9481P_300::OneWireMaster::triplet(TripletData & data) {
  error_code result = parent->selectBus(OneWire);
  if (!result) {
    result = OneWireMasterDecorator::triplet(data);
  }
  return result;
}

error_code DS9481P_300::I2CMaster::start(uint_least8_t address) {
  error_code result = parent->selectBus(I2C);
  if (!result) {
    result = I2CMasterDecorator::start(address);
  }
  return result;
}

error_code DS9481P_300::I2CMaster::stop() {
  error_code result = parent->selectBus(I2C);
  if (!result) {
    result = I2CMasterDecorator::stop();
  }
  return result;
}

error_code DS9481P_300::I2CMaster::writeByte(uint_least8_t data) {
  error_code result = parent->selectBus(I2C);
  if (!result) {
    result = I2CMasterDecorator::writeByte(data);
  }
  return result;
}

error_code DS9481P_300::I2CMaster::writeBlock(span<const uint_least8_t> data) {
  error_code result = parent->selectBus(I2C);
  if (!result) {
    result = I2CMasterDecorator::writeBlock(data);
  }
  return result;
}

error_code DS9481P_300::I2CMaster::doWritePacket(uint_least8_t address,
                                                 span<const uint_least8_t> data,
                                                 bool sendStop) {
  error_code result = parent->selectBus(I2C);
  if (!result) {
    result = I2CMasterDecorator::doWritePacket(address, data, sendStop);
  }
  return result;
}

error_code DS9481P_300::I2CMaster::readByte(AckStatus status,
                                            uint_least8_t & data) {
  error_code result = parent->selectBus(I2C);
  if (!result) {
    result = I2CMasterDecorator::readByte(status, data);
  }
  return result;
}

error_code DS9481P_300::I2CMaster::readBlock(AckStatus status,
                                             span<uint_least8_t> data) {
  error_code result = parent->selectBus(I2C);
  if (!result) {
    result = I2CMasterDecorator::readBlock(status, data);
  }
  return result;
}

error_code DS9481P_300::I2CMaster::doReadPacket(uint_least8_t address,
                                                span<uint_least8_t> data,
                                                bool sendStop) {
  error_code result = parent->selectBus(I2C);
  if (!result) {
    result = I2CMasterDecorator::doReadPacket(address, data, sendStop);
  }
  return result;
}

error_code DS9481P_300::DS2480BWithEscape::escape() {
  return sendCommand(0xE5);
}

error_code DS9481P_300::DS9400WithEscape::escape() { return configure('O'); }

} // namespace MaximInterfaceDevices