Diff: AR1021I2C.h

Revision:

0:b567d56a59d7

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/AR1021I2C.h	Fri Oct 03 13:30:09 2014 +0000
@@ -0,0 +1,77 @@
+/*
+ *  Copyright 2013 Embedded Artists AB
+ *
+ *  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 AR1021I2C_H
+#define AR1021I2C_H
+
+#include "TouchPanel.h"
+
+/**
+ * Microchip Touch Screen Controller (AR1021).
+ *
+ * Please note that this touch panel has an on-board storage for
+ * calibration data. Once a successful calibration has been performed
+ * it is not needed to do additional calibrations since the stored
+ * calibration data will be used.
+ */
+class AR1021I2C : public TouchPanel {
+public:
+
+
+    /**
+     * Constructor
+     *
+     * @param mosi I2C SDA pin
+     * @param miso I2C SCL pin
+     * @param siq interrupt pin
+     */
+    AR1021I2C(PinName sda, PinName scl, PinName siq);
+
+    bool info(int* verHigh, int* verLow, int* resBits, int* type);
+
+    virtual bool init(uint16_t width, uint16_t height);
+    virtual bool read(touchCoordinate_t &coord);
+    virtual bool calibrateStart();
+    virtual bool getNextCalibratePoint(uint16_t* x, uint16_t* y);
+    virtual bool waitForCalibratePoint(bool* morePoints, uint32_t timeout);
+
+private:
+
+
+    I2C _i2c;
+    DigitalIn _siq;
+    InterruptIn _siqIrq;
+    bool _initialized;
+
+
+    int32_t _x;
+    int32_t _y;
+    int32_t _pen;
+
+    uint16_t _width;
+    uint16_t _height;
+    uint8_t _inset;
+
+    int _calibPoint;
+
+
+    int cmd(char cmd, char* data, int len, char* respBuf, int* respLen, bool setCsOff=true);
+    int waitForCalibResponse(uint32_t timeout);
+    void readTouchIrq();
+};
+
+#endif
+