Diff: BERGCloudMbed.cpp

Revision:

0:b4ccb530b9eb

Child:

3:02b6b91ae6de

diff -r 000000000000 -r b4ccb530b9eb BERGCloudMbed.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/BERGCloudMbed.cpp	Tue Nov 12 14:38:30 2013 +0000
@@ -0,0 +1,173 @@
+/*
+
+BERGCloud library for mbed
+
+Copyright (c) 2013 BERG Cloud Ltd. http://bergcloud.com/
+
+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 THE
+AUTHORS OR COPYRIGHT HOLDERS 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.
+
+*/
+
+#include <cstdint>
+#include <cstddef>
+#include <cstdarg>
+
+#include "BERGCloudMbed.h"
+
+uint16_t BERGCloudMbed::SPITransaction(uint8_t *dataOut, uint8_t *dataIn, uint16_t dataSize, bool finalCS)
+{
+  uint16_t i;
+
+  if ( (dataOut == NULL) || (dataIn == NULL) || (spi == NULL) )
+  {
+    _LOG("Invalid parameter (CBERGCloud::SPITransaction)\r\n");
+    return 0;
+  }
+
+  nSSELPin->write(0);
+
+  for (i = 0; i < dataSize; i++)
+  {
+    *dataIn++ = spi->write(*dataOut++);
+  }
+
+  if (finalCS)
+  {
+    nSSELPin->write(1);
+  }
+
+  return dataSize;
+}
+
+void BERGCloudMbed::timerReset(void)
+{
+  timer->reset();
+}
+
+uint32_t BERGCloudMbed::timerRead_mS(void)
+{
+  return timer->read_ms();
+}
+
+void BERGCloudMbed::begin(PinName _MOSIPin, PinName _MISOPin, PinName _SCLKPin, PinName _nSSELPin)
+{
+  /* Call base class method */
+  BERGCloudBase::begin();
+
+  /* Configure nSSEL control pin */
+  nSSELPin = new DigitalOut(_nSSELPin);
+
+  if (nSSELPin == NULL)
+  {
+    _LOG("nSSELPin is NULL (CBERGCloud::begin)\r\n");
+    return;
+  }
+
+  nSSELPin->write(1);
+
+  /* Configure SPI */
+  spi = new SPI(_MOSIPin, _MISOPin, _SCLKPin);
+
+  if (spi  == NULL)
+  {
+    _LOG("spi is NULL (CBERGCloud::begin)\r\n");
+    delete nSSELPin;
+    return;
+  }
+
+  spi->format(8, 0); /* 8-bits; SPI MODE 0 */
+  spi->frequency(4000000); /* 4MHz */
+
+  /* Configure timer */
+  timer = new Timer();
+
+  if (timer  == NULL)
+  {
+    _LOG("timer is NULL (CBERGCloud::begin)\r\n");
+    delete nSSELPin;
+    delete spi;
+    return;
+  }
+
+  timer->start();
+}
+
+void BERGCloudMbed::end()
+{
+  if (nSSELPin != NULL)
+  {
+    delete nSSELPin;
+  }
+
+  if (spi != NULL)
+  {
+    delete spi;
+  }
+
+  if (timer != NULL)
+  {
+    delete timer;
+  }
+
+  /* Call base class method */
+  BERGCloudBase::end();
+}
+
+bool BERGCloudMbed::display(std::string& s)
+{
+  return display(s.c_str());
+}
+
+uint16_t BERGCloudMbed::getHostType(void)
+{
+  return BC_HOST_MBED;
+}
+
+#ifdef BERGCLOUD_PACK_UNPACK
+
+bool BERGCloudMessage::pack(std::string& s)
+{
+  return pack(s.c_str());
+}
+
+bool BERGCloudMessage::unpack(std::string& s)
+{
+  uint16_t sizeInBytes;
+
+  if (!unpack_raw_header(&sizeInBytes))
+  {
+    return false;
+  }
+
+  if (!remaining(sizeInBytes))
+  {
+    _LOG_UNPACK_ERROR_NO_DATA;
+    return false;
+  }
+
+  std::string tmp(buffer[bytesRead], sizeInBytes);
+  bytesRead += sizeInBytes;
+
+  s = tmp;
+
+  return true;
+}
+
+#endif // #ifdef BERGCLOUD_PACK_UNPACK
+