Diff: rgb_sensor_buffer.h

Revision:

0:bbd86bfe6577

Child:

2:8fbb1cd0c2d9

diff -r 000000000000 -r bbd86bfe6577 rgb_sensor_buffer.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rgb_sensor_buffer.h	Thu Jul 03 16:52:56 2014 +0000
@@ -0,0 +1,52 @@
+/* Discrete RGB color sensor (buffered)
+ *
+ * - uses single-channel light-dependent resistor (via ADC)
+ *   and a RGB LED.
+ * -  compensates background light
+ *
+ * Copyright (c) 2014 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __RGB_SENSOR_BUFFER_H__
+#define __RGB_SENSOR_BUFFER_H__
+
+#include <rgb_sensor.h>
+
+#ifndef RGB_SENSOR_BUFFER_MIN
+#define RGB_SENSOR_BUFFER_MIN 32
+#endif/*RGB_SENSOR_BUFFER_MIN*/
+
+#ifndef RGB_SENSOR_BUFFER_SPURIOUS_COUNT
+#define RGB_SENSOR_BUFFER_SPURIOUS_COUNT 64
+#endif/*RGB_SENSOR_BUFFER_SPURIOUS_COUNT*/
+
+class RGB_SensorBuffer: protected RGB_Sensor
+{
+    public:
+        RGB_SensorBuffer(PinName red, PinName green, PinName blue, PinName adc);
+        int trigger(TRGB* rgb, int count, int treshold);
+
+    private:
+        TRGB* m_buffer;
+        volatile int m_count, m_treshold, m_buffer_pos, m_buffer_spurious;
+        bool m_initialized;
+        static void __adc_irq(void);
+        void adc_irq(void);
+        static RGB_SensorBuffer* m_global;
+        static bool __callback(const TRGB &color);
+        bool callback(const TRGB &color);
+};
+
+#endif/*__RGB_SENSOR_BUFFER_H__*/
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