Diff: Devices/DS9400.cpp

Revision:

0:f77ad7f72d04

Child:

3:f818ea5172ed

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Devices/DS9400.cpp	Mon Nov 06 14:39:18 2017 -0600
@@ -0,0 +1,75 @@
+/*******************************************************************************
+* 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 "DS9400.hpp"
+
+namespace MaximInterface {
+
+error_code DS9400::start() { return uart->writeByte('S'); }
+
+error_code DS9400::start(uint_least8_t address) {
+  error_code result = start();
+  if (!result) {
+    result = writeByte(address);
+  }
+  return result;
+}
+
+error_code DS9400::stop() { return uart->writeByte('P'); }
+
+error_code DS9400::writeByte(uint_least8_t data) {
+  const uint_least8_t packet[] = {'Q', data};
+  error_code result = uart->clearReadBuffer();
+  if (!result) {
+    result = uart->writeBlock(packet, sizeof(packet) / sizeof(packet[0]));
+    if (!result) {
+      result = uart->readByte(data);
+      if (!result && data != 0) {
+        result = make_error_code(I2CMaster::NackError);
+      }
+    }
+  }
+  return result;
+}
+
+error_code DS9400::readByte(AckStatus status, uint_least8_t & data) {
+  error_code result = uart->clearReadBuffer();
+  if (!result) {
+    result = uart->writeByte(status == Ack ? 'R' : 'N');
+    if (!result) {
+      result = uart->readByte(data);
+    }
+  }
+  return result;
+}
+
+} // namespace MaximInterface
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