XY2_100.h

/*  XY2_100 library
    Copyright (c) 2018 Lutz Lisseck

    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 XY2_100_h
#define XY2_100_h

#ifdef __AVR__
#error "Sorry, this only works on 32 bit Teensy boards.  AVR isn't supported."
#endif

#include <Arduino.h>
#include "DMAChannel.h"

#if TEENSYDUINO < 121
#error "Teensyduino version 1.21 or later is required to compile this library."
#endif
#ifdef __AVR__
#error "Library does not work with Teensy 2.0 or Teensy++ 2.0."
#endif


class XY2_100 {
public:
	XY2_100();
	void begin(void);
	void setXY(uint16_t X, uint16_t Y);
  void setSignedXY(int16_t X, int16_t Y);
  uint8_t stat(void);
  
private:
	static uint16_t lastX;
	static uint16_t lastY;  
	static void *pingBuffer;
	static void *pongBuffer;
	static DMAChannel dma;
	static void isr(void);
};

#endif