Diff: Devices/DS2465.cpp

Revision:

7:9cd16581b578

Parent:

6:471901a04573

Child:

8:5ea891c7d1a1

diff -r 471901a04573 -r 9cd16581b578 Devices/DS2465.cpp
--- a/Devices/DS2465.cpp	Mon Mar 04 08:10:00 2019 -0600
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,782 +0,0 @@
-/*******************************************************************************
-* 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 "DS2465.hpp"
-
-namespace MaximInterface {
-
-using namespace Sha256;
-
-/// Delay required after writing an EEPROM segment.
-static const int eepromSegmentWriteDelayMs = 10;
-/// Delay required after writing an EEPROM page such as the secret memory.
-static const int eepromPageWriteDelayMs = 8 * eepromSegmentWriteDelayMs;
-/// Delay required for a SHA computation to complete.
-static const int shaComputationDelayMs = 2;
-
-static const uint_least8_t scratchpad = 0x00;
-static const uint_least8_t commandReg = 0x60;
-
-static const uint_least8_t owTransmitBlockCmd = 0x69;
-
-/// DS2465 Status bits.
-enum StatusBit {
-  Status_1WB = 0x01,
-  Status_PPD = 0x02,
-  Status_SD = 0x04,
-  Status_LL = 0x08,
-  Status_RST = 0x10,
-  Status_SBR = 0x20,
-  Status_TSB = 0x40,
-  Status_DIR = 0x80
-};
-
-static const int maxBlockSize = 63;
-
-const int DS2465::memoryPages;
-const int DS2465::segmentsPerPage;
-
-error_code DS2465::initialize(Config config) {
-  // reset DS2465
-  error_code result = resetDevice();
-  if (!result) {
-    // write the default configuration setup
-    result = writeConfig(config);
-  }
-  return result;
-}
-
-error_code DS2465::computeNextMasterSecret(bool swap, int pageNum,
-                                           PageRegion region) {
-  error_code result = make_error_code(ArgumentOutOfRangeError);
-  if (pageNum >= 0) {
-    const uint_least8_t command[] = {
-        0x1E, static_cast<uint_least8_t>(swap ? (0xC8 | (pageNum << 4) | region)
-                                              : 0xBF)};
-    result = writeMemory(commandReg, command);
-  }
-  return result;
-}
-
-error_code DS2465::computeWriteMac(bool regwrite, bool swap, int pageNum,
-                                   int segmentNum) const {
-  error_code result = make_error_code(ArgumentOutOfRangeError);
-  if (pageNum >= 0 && segmentNum >= 0) {
-    const uint_least8_t command[] = {
-        0x2D, static_cast<uint_least8_t>((regwrite << 7) | (swap << 6) |
-                                         (pageNum << 4) | segmentNum)};
-    result = writeMemory(commandReg, command);
-    if (!result) {
-      sleep->invoke(shaComputationDelayMs);
-    }
-  }
-  return result;
-}
-
-error_code DS2465::computeAuthMac(bool swap, int pageNum,
-                                  PageRegion region) const {
-  error_code result = make_error_code(ArgumentOutOfRangeError);
-  if (pageNum >= 0) {
-    const uint_least8_t command[] = {
-        0x3C, static_cast<uint_least8_t>(swap ? (0xC8 | (pageNum << 4) | region)
-                                              : 0xBF)};
-    result = writeMemory(commandReg, command);
-    if (!result) {
-      sleep->invoke(shaComputationDelayMs * 2);
-    }
-  }
-  return result;
-}
-
-error_code DS2465::computeSlaveSecret(bool swap, int pageNum,
-                                      PageRegion region) {
-  error_code result = make_error_code(ArgumentOutOfRangeError);
-  if (pageNum >= 0) {
-    const uint_least8_t command[] = {
-        0x4B, static_cast<uint_least8_t>(swap ? (0xC8 | (pageNum << 4) | region)
-                                              : 0xBF)};
-    result = writeMemory(commandReg, command);
-    if (!result) {
-      sleep->invoke(shaComputationDelayMs * 2);
-    }
-  }
-  return result;
-}
-
-error_code DS2465::readPage(int pageNum, Page::span data) const {
-  uint_least8_t addr;
-  switch (pageNum) {
-  case 0:
-    addr = 0x80;
-    break;
-  case 1:
-    addr = 0xA0;
-    break;
-  default:
-    return make_error_code(ArgumentOutOfRangeError);
-  }
-  return readMemory(addr, data);
-}
-
-error_code DS2465::writePage(int pageNum, Page::const_span data) {
-  error_code result = writeMemory(scratchpad, data);
-  if (!result) {
-    result = copyScratchpad(false, pageNum, false, 0);
-  }
-  if (!result) {
-    sleep->invoke(eepromPageWriteDelayMs);
-  }
-  return result;
-}
-
-error_code DS2465::writeSegment(int pageNum, int segmentNum,
-                                Segment::const_span data) {
-  error_code result = writeMemory(scratchpad, data);
-  if (!result) {
-    result = copyScratchpad(false, pageNum, true, segmentNum);
-  }
-  if (!result) {
-    sleep->invoke(eepromSegmentWriteDelayMs);
-  }
-  return result;
-}
-
-error_code DS2465::writeMasterSecret(Hash::const_span masterSecret) {
-  error_code result = writeMemory(scratchpad, masterSecret);
-  if (!result) {
-    result = copyScratchpad(true, 0, false, 0);
-  }
-  if (!result) {
-    sleep->invoke(eepromPageWriteDelayMs);
-  }
-  return result;
-}
-
-error_code DS2465::copyScratchpad(bool destSecret, int pageNum, bool notFull,
-                                  int segmentNum) {
-  error_code result = make_error_code(ArgumentOutOfRangeError);
-  if (pageNum >= 0 && segmentNum >= 0) {
-    const uint_least8_t command[] = {
-        0x5A,
-        static_cast<uint_least8_t>(destSecret ? 0
-                                              : (0x80 | (pageNum << 4) |
-                                                 (notFull << 3) | segmentNum))};
-    result = writeMemory(commandReg, command);
-  }
-  return result;
-}
-
-error_code DS2465::configureLevel(Level level) {
-  // Check if supported level
-  if (!((level == NormalLevel) || (level == StrongLevel))) {
-    return make_error_code(InvalidLevelError);
-  }
-  // Check if requested level already set
-  if (curConfig.getSPU() == (level == StrongLevel)) {
-    return error_code();
-  }
-  // Set the level
-  return writeConfig(Config(curConfig).setSPU(level == StrongLevel));
-}
-
-error_code DS2465::setLevel(Level newLevel) {
-  if (newLevel == StrongLevel) {
-    return make_error_code(InvalidLevelError);
-  }
-
-  return configureLevel(newLevel);
-}
-
-error_code DS2465::setSpeed(Speed newSpeed) {
-  // Check if supported speed
-  if (!((newSpeed == OverdriveSpeed) || (newSpeed == StandardSpeed))) {
-    return make_error_code(InvalidSpeedError);
-  }
-  // Check if requested speed is already set
-  if (curConfig.get1WS() == (newSpeed == OverdriveSpeed)) {
-    return error_code();
-  }
-  // Set the speed
-  return writeConfig(Config(curConfig).set1WS(newSpeed == OverdriveSpeed));
-}
-
-error_code DS2465::triplet(TripletData & data) {
-  // 1-Wire Triplet (Case B)
-  //   S AD,0 [A] 1WT [A] SS [A] Sr AD,1 [A] [Status] A [Status] A\ P
-  //                                         \--------/
-  //                           Repeat until 1WB bit has changed to 0
-  //  [] indicates from slave
-  //  SS indicates byte containing search direction bit value in msbit
-
-  const uint_least8_t command[] = {
-      0x78, static_cast<uint_least8_t>(data.writeBit ? 0x80 : 0x00)};
-  error_code result = writeMemory(commandReg, command);
-  if (!result) {
-    uint_least8_t status;
-    result = pollBusy(&status);
-    if (!result) {
-      // check bit results in status byte
-      data.readBit = ((status & Status_SBR) == Status_SBR);
-      data.readBitComplement = ((status & Status_TSB) == Status_TSB);
-      data.writeBit = ((status & Status_DIR) == Status_DIR);
-    }
-  }
-  return result;
-}
-
-error_code DS2465::readBlock(span<uint_least8_t> recvBuf) {
-  // 1-Wire Receive Block (Case A)
-  //   S AD,0 [A] CommandReg [A] 1WRF [A] PR [A] P
-  //  [] indicates from slave
-  //  PR indicates byte containing parameter
-
-  error_code result;
-  span<uint_least8_t>::index_type recvIdx = 0;
-  while (recvIdx < recvBuf.size() && !result) {
-    const uint_least8_t command[] = {
-        0xE1,
-        static_cast<uint_least8_t>(std::min<span<uint_least8_t>::index_type>(
-            recvBuf.size() - recvIdx, maxBlockSize))};
-    result = writeMemory(commandReg, command);
-    if (!result) {
-      result = pollBusy();
-    }
-    if (!result) {
-      result = readMemory(scratchpad, recvBuf.subspan(recvIdx, command[1]));
-    }
-    recvIdx += command[1];
-  }
-  return result;
-}
-
-error_code DS2465::writeBlock(span<const uint_least8_t> sendBuf) {
-  error_code result;
-  span<const uint_least8_t>::index_type sendIdx = 0;
-  while (sendIdx < sendBuf.size() && !result) {
-    const uint_least8_t command[] = {
-        owTransmitBlockCmd, static_cast<uint_least8_t>(
-                                std::min<span<const uint_least8_t>::index_type>(
-                                    sendBuf.size() - sendIdx, maxBlockSize))};
-
-    // prefill scratchpad with required data
-    result = writeMemory(scratchpad, sendBuf.subspan(sendIdx, command[1]));
-
-    // 1-Wire Transmit Block (Case A)
-    //   S AD,0 [A] CommandReg [A] 1WTB [A] PR [A] P
-    //  [] indicates from slave
-    //  PR indicates byte containing parameter
-    if (!result) {
-      result = writeMemory(commandReg, command);
-    }
-    if (!result) {
-      result = pollBusy();
-    }
-    sendIdx += command[1];
-  }
-  return result;
-}
-
-error_code DS2465::writeMacBlock() const {
-  // 1-Wire Transmit Block (Case A)
-  //   S AD,0 [A] CommandReg [A] 1WTB [A] PR [A] P
-  //  [] indicates from slave
-  //  PR indicates byte containing parameter
-
-  const uint_least8_t command[] = {owTransmitBlockCmd, 0xFF};
-  error_code result = writeMemory(commandReg, command);
-  if (!result) {
-    result = pollBusy();
-  }
-  return result;
-}
-
-error_code DS2465::readByteSetLevel(uint_least8_t & recvByte,
-                                    Level afterLevel) {
-  // 1-Wire Read Bytes (Case C)
-  //   S AD,0 [A] CommandReg [A] 1WRB [A] Sr AD,1 [A] [Status] A [Status] A
-  //                                                  \--------/
-  //                     Repeat until 1WB bit has changed to 0
-  //   Sr AD,0 [A] SRP [A] E1 [A] Sr AD,1 [A] DD A\ P
-  //
-  //  [] indicates from slave
-  //  DD data read
-
-  error_code result = configureLevel(afterLevel);
-  if (result) {
-    return result;
-  }
-
-  const uint_least8_t command = 0x96;
-  result = writeMemory(commandReg, make_span(&command, 1));
-  if (result) {
-    return result;
-  }
-
-  result = pollBusy();
-  if (result) {
-    return result;
-  }
-
-  result = readMemory(0x62, make_span(&recvByte, 1));
-  return result;
-}
-
-error_code DS2465::writeByteSetLevel(uint_least8_t sendByte, Level afterLevel) {
-  // 1-Wire Write Byte (Case B)
-  //   S AD,0 [A] CommandReg [A] 1WWB [A] DD [A] Sr AD,1 [A] [Status] A [Status]
-  //   A\ P
-  //                                                           \--------/
-  //                             Repeat until 1WB bit has changed to 0
-  //  [] indicates from slave
-  //  DD data to write
-
-  error_code result = configureLevel(afterLevel);
-  if (result) {
-    return result;
-  }
-
-  const uint_least8_t command[] = {0xA5, sendByte};
-  result = writeMemory(commandReg, command);
-  if (result) {
-    return result;
-  }
-
-  result = pollBusy();
-  return result;
-}
-
-error_code DS2465::touchBitSetLevel(bool & sendRecvBit, Level afterLevel) {
-  // 1-Wire bit (Case B)
-  //   S AD,0 [A] CommandReg [A] 1WSB [A] BB [A] Sr AD,1 [A] [Status] A [Status]
-  //   A\ P
-  //                                                          \--------/
-  //                           Repeat until 1WB bit has changed to 0
-  //  [] indicates from slave
-  //  BB indicates byte containing bit value in msbit
-
-  error_code result = configureLevel(afterLevel);
-  if (result) {
-    return result;
-  }
-
-  const uint_least8_t command[] = {
-      0x87, static_cast<uint_least8_t>(sendRecvBit ? 0x80 : 0x00)};
-  result = writeMemory(commandReg, command);
-  if (result) {
-    return result;
-  }
-
-  uint_least8_t status;
-  result = pollBusy(&status);
-  if (!result) {
-    sendRecvBit = ((status & Status_SBR) == Status_SBR);
-  }
-  return result;
-}
-
-error_code DS2465::writeMemory(uint_least8_t addr,
-                               span<const uint_least8_t> buf) const {
-  // Write SRAM (Case A)
-  //   S AD,0 [A] VSA [A] DD [A]  P
-  //                      \-----/
-  //                        Repeat for each data byte
-  //  [] indicates from slave
-  //  VSA valid SRAM memory address
-  //  DD memory data to write
-
-  error_code result = master->start(address_);
-  if (result) {
-    master->stop();
-    return result;
-  }
-  result = master->writeByte(addr);
-  if (result) {
-    master->stop();
-    return result;
-  }
-  result = master->writeBlock(buf);
-  if (result) {
-    master->stop();
-    return result;
-  }
-  result = master->stop();
-  return result;
-}
-
-error_code DS2465::readMemory(uint_least8_t addr,
-                              span<uint_least8_t> buf) const {
-  // Read (Case A)
-  //   S AD,0 [A] MA [A] Sr AD,1 [A] [DD] A [DD] A\ P
-  //                                 \-----/
-  //                                   Repeat for each data byte, NAK last byte
-  //  [] indicates from slave
-  //  MA memory address
-  //  DD memory data read
-
-  error_code result = master->start(address_);
-  if (result) {
-    master->stop();
-    return result;
-  }
-  result = master->writeByte(addr);
-  if (result) {
-    master->stop();
-    return result;
-  }
-  result = readMemory(buf);
-  return result;
-}
-
-error_code DS2465::readMemory(span<uint_least8_t> buf) const {
-  error_code result = master->start(address_ | 1);
-  if (result) {
-    master->stop();
-    return result;
-  }
-  result = master->readBlock(I2CMaster::Nack, buf);
-  if (result) {
-    master->stop();
-    return result;
-  }
-  result = master->stop();
-  return result;
-}
-
-error_code DS2465::writeConfig(Config config) {
-  const uint_least8_t configReg = 0x67;
-  uint_least8_t configBuf =
-      ((config.readByte() ^ 0xF) << 4) | config.readByte();
-  error_code result = writeMemory(configReg, make_span(&configBuf, 1));
-  if (!result) {
-    result = readMemory(configReg, make_span(&configBuf, 1));
-  }
-  if (!result) {
-    if (configBuf != config.readByte())
-      result = make_error_code(HardwareError);
-  }
-  if (!result) {
-    curConfig = config;
-  }
-  return result;
-}
-
-error_code DS2465::writePortParameter(PortParameter param, int val) {
-  if (val < 0 || val > 15) {
-    return make_error_code(ArgumentOutOfRangeError);
-  }
-
-  uint_least8_t addr = 0;
-  switch (param) {
-  case tRSTL_STD:
-  case tRSTL_OD:
-    addr = 0x68;
-    break;
-  case tMSP_STD:
-  case tMSP_OD:
-    addr = 0x69;
-    break;
-  case tW0L_STD:
-  case tW0L_OD:
-    addr = 0x6A;
-    break;
-  case tREC0:
-    addr = 0x6B;
-    break;
-  case RWPU:
-    addr = 0x6C;
-    break;
-  case tW1L_OD:
-    addr = 0x6D;
-    break;
-  }
-
-  uint_least8_t data;
-  error_code result = readMemory(addr, make_span(&data, 1));
-  if (result) {
-    return result;
-  }
-
-  uint_least8_t newData;
-  if (param == tRSTL_OD || param == tMSP_OD || param == tW0L_OD) {
-    newData = (data & 0x0F) | (val << 4);
-  } else {
-    newData = (data & 0xF0) | val;
-  }
-
-  if (newData != data) {
-    result = writeMemory(addr, make_span(&newData, 1));
-  }
-  return result;
-}
-
-error_code DS2465::pollBusy(uint_least8_t * pStatus) const {
-  const int pollLimit = 200;
-
-  int pollCount = 0;
-  uint_least8_t status;
-  do {
-    error_code result = readMemory(make_span(&status, 1));
-    if (result) {
-      return result;
-    }
-    if (pStatus != NULL) {
-      *pStatus = status;
-    }
-    if (pollCount++ >= pollLimit) {
-      return make_error_code(HardwareError);
-    }
-  } while (status & Status_1WB);
-
-  return error_code();
-}
-
-error_code DS2465::reset() {
-  // 1-Wire reset (Case B)
-  //   S AD,0 [A] CommandReg  [A] 1WRS [A] Sr AD,1 [A] [Status] A [Status] A\ P
-  //                                                  \--------/
-  //                       Repeat until 1WB bit has changed to 0
-  //  [] indicates from slave
-
-  uint_least8_t buf = 0xB4;
-  error_code result = writeMemory(commandReg, make_span(&buf, 1));
-
-  if (!result) {
-    result = pollBusy(&buf);
-  }
-
-  if (!result) {
-    if ((buf & Status_SD) == Status_SD) {
-      result = make_error_code(ShortDetectedError);
-    } else if ((buf & Status_PPD) != Status_PPD) {
-      result = make_error_code(NoSlaveError);
-    }
-  }
-
-  return result;
-}
-
-error_code DS2465::resetDevice() {
-  // Device Reset
-  //   S AD,0 [A] CommandReg [A] 1WMR [A] Sr AD,1 [A] [SS] A\ P
-  //  [] indicates from slave
-  //  SS status byte to read to verify state
-
-  uint_least8_t buf = 0xF0;
-  error_code result = writeMemory(commandReg, make_span(&buf, 1));
-
-  if (!result) {
-    result = readMemory(make_span(&buf, 1));
-  }
-
-  if (!result) {
-    if ((buf & 0xF7) != 0x10) {
-      result = make_error_code(HardwareError);
-    }
-  }
-
-  if (!result) {
-    reset(); // do a command to get 1-Wire master reset out of holding state
-  }
-
-  return result;
-}
-
-error_code
-DS2465::computeNextMasterSecret(AuthenticationData::const_span data) {
-  error_code result = writeMemory(scratchpad, data);
-  if (!result) {
-    result = computeNextMasterSecret(false, 0, FullPage);
-  }
-  return result;
-}
-
-error_code
-DS2465::computeNextMasterSecretWithSwap(AuthenticationData::const_span data,
-                                        int pageNum, PageRegion region) {
-  error_code result = writeMemory(scratchpad, data);
-  if (!result) {
-    result = computeNextMasterSecret(true, pageNum, region);
-  }
-  return result;
-}
-
-error_code DS2465::computeWriteMac(WriteMacData::const_span data) const {
-  error_code result = writeMemory(scratchpad, data);
-  if (!result) {
-    result = computeWriteMac(false, false, 0, 0);
-  }
-  return result;
-}
-
-error_code DS2465::computeWriteMac(WriteMacData::const_span data,
-                                   Hash::span mac) const {
-  error_code result = computeWriteMac(data);
-  if (!result) {
-    result = readMemory(mac);
-  }
-  return result;
-}
-
-error_code
-DS2465::computeAndTransmitWriteMac(WriteMacData::const_span data) const {
-  error_code result = computeWriteMac(data);
-  if (!result) {
-    result = writeMacBlock();
-  }
-  return result;
-}
-
-error_code DS2465::computeWriteMacWithSwap(WriteMacData::const_span data,
-                                           int pageNum, int segmentNum) const {
-  error_code result = writeMemory(scratchpad, data);
-  if (!result) {
-    result = computeWriteMac(false, true, pageNum, segmentNum);
-  }
-  return result;
-}
-
-error_code DS2465::computeWriteMacWithSwap(WriteMacData::const_span data,
-                                           int pageNum, int segmentNum,
-                                           Hash::span mac) const {
-  error_code result = computeWriteMacWithSwap(data, pageNum, segmentNum);
-  if (!result) {
-    result = readMemory(mac);
-  }
-  return result;
-}
-
-error_code
-DS2465::computeAndTransmitWriteMacWithSwap(WriteMacData::const_span data,
-                                           int pageNum, int segmentNum) const {
-  error_code result = computeWriteMacWithSwap(data, pageNum, segmentNum);
-  if (!result) {
-    result = writeMacBlock();
-  }
-  return result;
-}
-
-error_code DS2465::computeSlaveSecret(AuthenticationData::const_span data) {
-  error_code result = writeMemory(scratchpad, data);
-  if (!result) {
-    result = computeSlaveSecret(false, 0, FullPage);
-  }
-  return result;
-}
-
-error_code
-DS2465::computeSlaveSecretWithSwap(AuthenticationData::const_span data,
-                                   int pageNum, PageRegion region) {
-  error_code result = writeMemory(scratchpad, data);
-  if (!result) {
-    result = computeSlaveSecret(true, pageNum, region);
-  }
-  return result;
-}
-
-error_code DS2465::computeAuthMac(AuthenticationData::const_span data) const {
-  error_code result = writeMemory(scratchpad, data);
-  if (!result) {
-    result = computeAuthMac(false, 0, FullPage);
-  }
-  return result;
-}
-
-error_code DS2465::computeAuthMac(AuthenticationData::const_span data,
-                                  Hash::span mac) const {
-  error_code result = computeAuthMac(data);
-  if (!result) {
-    result = readMemory(mac);
-  }
-  return result;
-}
-
-error_code
-DS2465::computeAndTransmitAuthMac(AuthenticationData::const_span data) const {
-  error_code result = computeAuthMac(data);
-  if (!result) {
-    result = writeMacBlock();
-  }
-  return result;
-}
-
-error_code DS2465::computeAuthMacWithSwap(AuthenticationData::const_span data,
-                                          int pageNum,
-                                          PageRegion region) const {
-  error_code result = writeMemory(scratchpad, data);
-  if (!result) {
-    result = computeAuthMac(true, pageNum, region);
-  }
-  return result;
-}
-
-error_code DS2465::computeAuthMacWithSwap(AuthenticationData::const_span data,
-                                          int pageNum, PageRegion region,
-                                          Hash::span mac) const {
-  error_code result = computeAuthMacWithSwap(data, pageNum, region);
-  if (!result) {
-    result = readMemory(mac);
-  }
-  return result;
-}
-
-error_code DS2465::computeAndTransmitAuthMacWithSwap(
-    AuthenticationData::const_span data, int pageNum, PageRegion region) const {
-  error_code result = computeAuthMacWithSwap(data, pageNum, region);
-  if (!result) {
-    result = writeMacBlock();
-  }
-  return result;
-}
-
-const error_category & DS2465::errorCategory() {
-  static class : public error_category {
-  public:
-    virtual const char * name() const { return "DS2465"; }
-
-    virtual std::string message(int condition) const {
-      switch (condition) {
-      case HardwareError:
-        return "Hardware Error";
-
-      case ArgumentOutOfRangeError:
-        return "Argument Out of Range Error";
-
-      default:
-        return defaultErrorMessage(condition);
-      }
-    }
-  } instance;
-  return instance;
-}
-
-} // namespace MaximInterface