Diff: ar1020.h

Revision:

0:cf4dd04052e3

Child:

1:264ad2a00fd9

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ar1020.h	Mon Feb 21 22:29:40 2011 +0000
@@ -0,0 +1,75 @@
+/*
+* mbed AR1020 library
+* Copyright (c) 2010 Hendrik Lipka
+*
+* 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 __AR1020_H_
+#define __AR1020_H_
+
+#include "mbed.h"
+    
+#include "touchpanel.h"
+#include "touchevent.h"
+    
+class AR1020: public TouchPanel
+{
+    public:
+        /**
+            requires
+                SPI mode=1 (POL=0, PHA=1 [falling edge])
+                SPI frequency lower than 900 kHz (something about 100kHz preferred)
+            @param spi the SPI object where the AR1020 is connected
+            @params enable the pin name where /CS is connected
+        */
+        AR1020(SPI *spi, PinName enable, PinName sqi, bool swapX=false, bool swapY=false, bool swapXY=false);
+        AR1020(PinName mosi, PinName miso, PinName clk, PinName enable, PinName sqi, bool swapX=false, bool swapY=false, bool swapXY=false);
+        ~AR1020();
+        virtual void init();
+        virtual int x();
+        virtual int y();
+        virtual int pen();
+        virtual void read();
+        void calibrate();
+    private:
+        int cmd(char cmd,char* data, int len);
+        int readCalibResponse();
+        int readByte();
+        void writeByte(char byte);
+
+        SPI *_spi;
+        DigitalOut *_enable;   
+        InterruptIn *_irq;
+        DigitalIn *_sqi;
+        int _x, _y, _pen; 
+        
+        DigitalOut *_led;
+    
+        DigitalOut *_mosi;
+        DigitalIn *_miso;
+        DigitalOut *_clk;
+        
+        bool _oldPen;
+        TouchEvent _event;
+};
+
+
+
+#endif