Diff: MaximInterfaceCore/I2CMaster.cpp

Revision:

7:9cd16581b578

Child:

8:5ea891c7d1a1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MaximInterfaceCore/I2CMaster.cpp	Mon Jul 22 11:44:07 2019 -0500
@@ -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 "Error.hpp"
+#include "I2CMaster.hpp"
+
+namespace MaximInterfaceCore {
+
+error_code I2CMaster::writeBlock(span<const uint_least8_t> data) {
+  error_code result;
+  for (span<const uint_least8_t>::index_type i = 0;
+       i < data.size() && !result; ++i) {
+    result = writeByte(data[i]);
+  }
+  return result;
+}
+
+error_code I2CMaster::doWritePacket(uint_least8_t address,
+                                    span<const uint_least8_t> data,
+                                    bool sendStop) {
+  error_code result = start(address & 0xFE);
+  if (!result) {
+    result = writeBlock(data);
+  }
+  if (sendStop) {
+    error_code stopResult = stop();
+    if (!result) {
+      result = stopResult;
+    }
+  }
+  return result;
+}
+
+error_code I2CMaster::readBlock(AckStatus status, span<uint_least8_t> data) {
+  error_code result;
+  for (span<uint_least8_t>::index_type i = 0; i < data.size() && !result; ++i) {
+    result = readByte(i == (data.size() - 1) ? status : Ack, data[i]);
+  }
+  return result;
+}
+
+error_code I2CMaster::doReadPacket(uint_least8_t address,
+                                   span<uint_least8_t> data, bool sendStop) {
+  error_code result = start(address | 0x01);
+  if (!result) {
+    result = readBlock(Nack, data);
+  }
+  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 MaximInterfaceCore