Diff: AR1021.h

Revision:

4:b32cf4ef45c5

Child:

5:3290d7b766d5

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/AR1021.h	Fri Oct 18 12:48:58 2013 +0200
@@ -0,0 +1,65 @@
+
+#ifndef AR1021_H
+#define AR1021_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 AR1021 : public TouchPanel {
+public:
+
+
+    /**
+     * Constructor
+     *
+     * @param mosi SPI MOSI pin
+     * @param miso SPI MISO pin
+     * @param sck SPI SCK pin
+     * @param cs chip-select pin
+     * @param siq interrupt pin
+     */
+    AR1021(PinName mosi, PinName miso, PinName sck, PinName cs, PinName siq);
+
+
+    bool init(uint16_t width, uint16_t height);
+    bool read(touchCoordinate_t &coord);
+    bool calibrateStart();
+    bool getNextCalibratePoint(uint16_t* x, uint16_t* y);
+    bool waitForCalibratePoint(bool* morePoints, uint32_t timeout);
+
+private:
+
+
+    SPI _spi;
+    DigitalOut _cs;
+    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