Diff: UTouch.h

Revision:

0:a275ef704eb8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/UTouch.h	Mon Jan 11 09:35:33 2016 +0000
@@ -0,0 +1,152 @@
+/** \file UTouch.h
+ *  \brief mbed library for XPT2046 SPI Touchscreen Controller (TFT_320QVT module).
+ *  \copyright GNU Public License, v2. or later
+ *
+ * A known display with this type of controller chip is the ITDB02-3.2S
+ * from http://imall.iteadstudio.com
+ *
+ * This library is based on the Arduino/chipKIT UTFT library by Henning
+ * Karlsen, http://www.rinkydinkelectronics.com/library.php?id=55
+ *
+ * Pressure sensivity added by Dmitry Shtatnov
+ *
+ * Copyright (C)2010-2015 Henning Karlsen. All right reserved.
+ *
+ * Copyright (C)2016 Dmitry Shtatnov. All right reserved.
+ * http://modularsynth.ru/
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to:
+ *
+ * Free Software Foundation, Inc.
+ * 51 Franklin St, 5th Floor, Boston, MA 02110-1301, USA
+ *
+ *********************************************************************/
+
+#include "mbed.h"
+
+#ifndef UTouch_h
+#define UTouch_h
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** Represents a Touchscreen instance.
+ *
+ * This is the utility class, through which the XPT2046 touchscreen can be manipulated
+ * How to use:
+ * \code
+ * // If you are using TFT-320QVT TFT LCD module or similar, you also have to add
+ * // SSD1289 library by Todor Todorov or modified version by Dmitry Shtatnov
+ * 
+ * #include "mbed.h"
+ * #include "ssd1289.h"
+ * #include "UTouch.h"
+ * PortOut LCDPA(PortA,0xFF00);
+ * PortOut LCDPC(PortC,0x00FF);
+ * //                 CS,   REST, RS,   WR,   DATA,      BL, RD
+ * SSD1289_LCD myGLCD(PB_3, PB_4, PB_0, PB_1, &LCDPA, &LCDPC, NC, PB_2);
+ * 
+ * UTouch  myTouch(PB_9, PB_8, PB_7, PB_6, PB_5);
+ * 
+ * int main() {
+ *   myGLCD.Initialize();
+ *   myGLCD.SetBackground(COLOR_WHITE);
+ *   myGLCD.SetForeground(COLOR_BLACK);
+ *   myGLCD.FillScreen(COLOR_WHITE);
+ *   myTouch.InitTouch();
+ *   myTouch.SetPrecision(PREC_HI);
+ *   while(1==1)
+ *   {
+ *     if (myTouch.DataAvailable())
+ *     {
+ *       if(myTouch.Read())
+ *       {
+ *         x = myTouch.GetX();
+ *         y = myTouch.GetY();
+ *         myGLCD.DrawPixel(x, y, COLOR_BLACK);
+ *       }
+ *     }
+ *   }
+ * }
+ *
+ * \endcode
+ * \version 0.1
+ * \author Dmitry Shtatnov
+ */
+
+
+#define UTOUCH_VERSION  124
+
+// *** Hardwarespecific defines ***
+#define swap(type, i, j) {type t = i; i = j; j = t;}
+
+#define LOW                 0
+#define HIGH                1
+
+#define PORTRAIT            0
+#define LANDSCAPE           1
+
+#define PREC_LOW            1
+#define PREC_MEDIUM         2
+#define PREC_HI             3
+#define PREC_EXTREME        4
+
+#define byte uint8_t
+#define word uint16_t
+class UTouch
+{
+    public:
+        int16_t TP_X ,TP_Y, TP_Z1, TP_Z2;
+
+                UTouch(PinName tclk, PinName tcs, PinName tdin, PinName dout, PinName irq);
+
+        void    InitTouch(byte orientation = LANDSCAPE);
+        bool    Read();
+        bool    DataAvailable();
+        int16_t GetX();
+        int16_t GetY();
+        void    SetPrecision(byte precision);
+
+        void    CalibrateRead();
+        int16_t GetPressure();
+        void    SetTreshold(int16_t trshLow, int16_t trshHigh);
+    
+    protected:
+        int16_t GetXraw();
+        int16_t GetYraw();
+        int16_t GetZ1raw();
+        int16_t GetZ2raw();
+        DigitalOut P_CLK, P_CS, P_DIN;
+        DigitalIn P_DOUT;
+        DigitalInOut P_IRQ;
+        long    _default_orientation;
+        byte    orient;
+        byte    prec;
+        byte    display_model;
+        long    disp_x_size, disp_y_size, default_orientation;
+        long    touch_x_left, touch_x_right, touch_y_top, touch_y_bottom;
+
+        void    touch_WriteData(byte data);
+        word    touch_ReadData();
+        int16_t touch_tresholdLow;
+        int16_t touch_tresholdHigh;
+        int16_t touch_getrawdata(uint8_t code);
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
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