ms5803: initial implementation; C, C++; FTI + examples

Signed-off-by: Jon Trulson <jtrulson@ics.com>

src/ms5803/ms5803.cxx

@@ -0,0 +1,118 @@
+/*
+ * Author: Jon Trulson <jtrulson@ics.com>
+ * Copyright (c) 2016 Intel Corporation.
+ *
+ * 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 <unistd.h>
+#include <iostream>
+#include <stdexcept>
+#include <string>
+
+#include "ms5803.hpp"
+
+using namespace upm;
+using namespace std;
+
+MS5803::MS5803(int bus, int address, int csPin) :
+    m_ms5803(ms5803_init(bus, address, csPin))
+{
+    if (!m_ms5803)
+        throw std::runtime_error(string(__FUNCTION__)
+                                 + ": ms5803_init() failed");
+}
+
+MS5803::~MS5803()
+{
+    ms5803_close(m_ms5803);
+}
+
+void MS5803::update()
+{
+    if (ms5803_update(m_ms5803))
+        throw std::runtime_error(string(__FUNCTION__)
+                                 + ": ms5803_update() failed");
+}
+
+void MS5803::reset()
+{
+    if (ms5803_reset(m_ms5803))
+        throw std::runtime_error(string(__FUNCTION__)
+                                 + ": ms5803_reset() failed");
+}
+
+void MS5803::setTemperatureOSR(MS5803_OSR_T osr)
+{
+    ms5803_set_temperature_osr(m_ms5803, osr);
+}
+
+void MS5803::setPressureOSR(MS5803_OSR_T osr)
+{
+    ms5803_set_pressure_osr(m_ms5803, osr);
+}
+
+
+float MS5803::getTemperature()
+{
+    return ms5803_get_temperature(m_ms5803);
+}
+
+float MS5803::getPressure()
+{
+    return ms5803_get_pressure(m_ms5803);
+}
+
+void MS5803::loadCoefficients()
+{
+    if (ms5803_load_coefficients(m_ms5803))
+        throw std::runtime_error(string(__FUNCTION__)
+                                 + ": ms5803_load_coefficients() failed");
+}
+
+string MS5803::busRead(int cmd, int len)
+{
+    uint8_t ucmd = (uint8_t)(cmd & 0xff);
+    uint8_t ulen = (uint8_t)(len & 0xff);
+
+    uint8_t *data = new uint8_t[ulen];
+
+    if (ms5803_bus_read(m_ms5803, ucmd, data, ulen))
+    {
+        delete [] data;
+        throw std::runtime_error(string(__FUNCTION__)
+                                 + ": ms5803_bus_read() failed");
+    }
+
+    string dataStr((char *)data, ulen);
+    delete [] data;
+
+    return dataStr;
+}
+
+void MS5803::busWrite(int cmd, string data)
+{
+    uint8_t ucmd = (uint8_t)(cmd & 0xff);
+
+    if (ms5803_bus_write(m_ms5803, ucmd, (uint8_t *)data.data(),
+                         (uint8_t)data.size()))
+        throw std::runtime_error(string(__FUNCTION__)
+                                 + ": ms5803_bus_write() failed");
+}