Add sensors code from Yue

[~andy/csm213a-hw] / yue / TSI / TSISensor.h

diff --git a/yue/TSI/TSISensor.h b/yue/TSI/TSISensor.h
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+++ b/yue/TSI/TSISensor.h
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+/* Freescale Semiconductor Inc.
+ * (c) Copyright 2004-2005 Freescale Semiconductor, Inc.
+ * (c) Copyright 2001-2004 Motorola, Inc. 
+ *
+ * mbed Microcontroller Library
+ * (c) Copyright 2009-2012 ARM Limited.
+ *
+ * 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.
+ */
+
+#ifndef TSISENSOR_H
+#define TSISENSOR_H
+
+/**
+* TSISensor example
+*
+* @code
+* #include "mbed.h"
+* #include "TSISensor.h"
+* 
+* int main(void) {
+*     PwmOut led(LED_GREEN);
+*     TSISensor tsi;
+*     
+*     while (true) {
+*         led = 1.0 - tsi.readPercentage();
+*         wait(0.1);
+*     }
+* }
+* @endcode
+*/
+class TSISensor {
+public:
+    /**
+     *   Initialize the TSI Touch Sensor
+     */
+    TSISensor();
+
+    /**
+     * Read Touch Sensor percentage value
+     *
+     * @returns percentage value between [0 ... 1]
+     */
+    float readPercentage();
+
+    /**
+     * Read Touch Sensor distance
+     *
+     * @returns distance in mm. The value is between [0 ... 40]
+     */
+    uint8_t readDistance();
+    uint16_t readValue(uint8_t);
+    void TSISensor_reset(void);
+
+private:
+    void sliderRead(void);
+    void selfCalibration(void);
+};
+
+#endif