Diff: Platforms/mxc/I2CMaster.cpp

Revision:

6:a8c83a2e6fa4

Parent:

4:caf56f265a13

Child:

7:471901a04573

--- a/Platforms/mxc/I2CMaster.cpp	Fri Jan 19 10:25:02 2018 -0600
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,116 +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 <mxc_device.h>
-#include "Error.hpp"
-#include "I2CMaster.hpp"
-
-namespace MaximInterface {
-namespace mxc {
-
-static void verifyTransactionStarted(mxc_i2cm_regs_t & i2cm) {
-  if (!(i2cm.trans & MXC_F_I2CM_TRANS_TX_IN_PROGRESS)) {
-    i2cm.trans |= MXC_F_I2CM_TRANS_TX_START;
-  }
-}
-
-error_code I2CMaster::initialize(const sys_cfg_i2cm_t & sysCfg,
-                                 i2cm_speed_t speed) {
-  return makeErrorCode(I2CM_Init(i2cm, &sysCfg, speed));
-}
-
-error_code I2CMaster::shutdown() { return makeErrorCode(I2CM_Shutdown(i2cm)); }
-
-error_code I2CMaster::writeByte(uint_least8_t data, bool start) {
-  const uint16_t fifoData =
-      static_cast<uint16_t>(data & 0xFF) |
-      (start ? MXC_S_I2CM_TRANS_TAG_START : MXC_S_I2CM_TRANS_TAG_TXDATA_ACK);
-  const error_code result =
-      makeErrorCode(I2CM_WriteTxFifo(i2cm, i2cmFifo, fifoData));
-  if (result) {
-    I2CM_Recover(i2cm);
-  } else {
-    verifyTransactionStarted(*i2cm);
-  }
-  return result;
-}
-
-error_code I2CMaster::start(uint_least8_t address) {
-  return writeByte(address, true);
-}
-
-error_code I2CMaster::stop() {
-  error_code result = makeErrorCode(
-      I2CM_WriteTxFifo(i2cm, i2cmFifo, MXC_S_I2CM_TRANS_TAG_STOP));
-  if (!result) {
-    result = makeErrorCode(I2CM_TxInProgress(i2cm));
-  }
-  return result;
-}
-
-error_code I2CMaster::writeByte(uint_least8_t data) {
-  return writeByte(data, false);
-}
-
-error_code I2CMaster::readByte(AckStatus status, uint_least8_t & data) {
-  uint16_t fifoData = (status == Nack) ? MXC_S_I2CM_TRANS_TAG_RXDATA_NACK
-                                       : MXC_S_I2CM_TRANS_TAG_RXDATA_COUNT;
-  error_code result = makeErrorCode(I2CM_WriteTxFifo(i2cm, i2cmFifo, fifoData));
-  if (!result) {
-    verifyTransactionStarted(*i2cm);
-    do {
-      int timeout = 0x5000;
-      while ((i2cm->bb & MXC_F_I2CM_BB_RX_FIFO_CNT) == 0) {
-        if ((--timeout <= 0) || (i2cm->trans & MXC_F_I2CM_TRANS_TX_TIMEOUT)) {
-          result = makeErrorCode(E_TIME_OUT);
-          goto exit;
-        }
-        if (i2cm->trans &
-            (MXC_F_I2CM_TRANS_TX_LOST_ARBITR | MXC_F_I2CM_TRANS_TX_NACKED)) {
-          result = make_error_code(NackError);
-          goto exit;
-        }
-      }
-      fifoData = i2cmFifo->rx;
-    } while (fifoData & MXC_S_I2CM_RSTLS_TAG_EMPTY);
-    data = fifoData & 0xFF;
-  }
-
-exit:
-  if (result) {
-    I2CM_Recover(i2cm);
-  }
-  return result;
-}
-
-} // namespace mxc
-} // namespace MaximInterface