buzzer: added buzzer with example

Signed-off-by: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>

src/buzzer/buzzer.h

@@ -0,0 +1,53 @@
+/*
+ * Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
+ * Copyright (c) 2014 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.
+ */
+#pragma once
+
+#include <string>
+#include <maa/pwm.h>
+
+#define  DO     3830000    // 261 Hz
+#define  RE     3400000    // 294 Hz
+#define  MI     3038000    // 329 Hz
+#define  FA     2864000    // 349 Hz
+#define  SOL    2550000    // 392 Hz
+#define  LA     2272000    // 440 Hz
+#define  SI     2028000    // 493 Hz
+
+namespace upm {
+
+class Buzzer {
+    public:
+		Buzzer (int pinNumber);
+		~Buzzer ();
+		int playSound (int note);
+        std::string name()
+        {
+            return m_name;
+        }
+    protected:
+        std::string m_name;
+	private:
+		maa_pwm_context m_pwm_context;
+};
+}