EmbeddedArtists AB / DmTftLibrary

Modified version of the DmTftLibrary, optimized for the LPC4088 Experiment Base Board

Dependents:   lpc4088_ebb_dm_calc lpc4088_ebb_dm_bubbles

Fork of DmTftLibrary by Display Module

DmTouch.h@10:d263094e666d, 2014-07-09 (annotated)

Committer:
displaymodule
Date:
Wed Jul 09 08:31:34 2014 +0000
Revision:
10:d263094e666d
Parent:
8:b24f01d148c4 
Added better out-of-bounds checks for touch. If the coordinate is outside the display area then it is considered as not touching.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
displaymodule 0:d6ff5fa503e8 1 /**********************************************************************************************
displaymodule 0:d6ff5fa503e8 2 Copyright (c) 2014 DisplayModule. All rights reserved.
displaymodule 0:d6ff5fa503e8 3
displaymodule 0:d6ff5fa503e8 4 Redistribution and use of this source code, part of this source code or any compiled binary
displaymodule 0:d6ff5fa503e8 5 based on this source code is permitted as long as the above copyright notice and following
displaymodule 0:d6ff5fa503e8 6 disclaimer is retained.
displaymodule 0:d6ff5fa503e8 7
displaymodule 0:d6ff5fa503e8 8 DISCLAIMER:
displaymodule 0:d6ff5fa503e8 9 THIS SOFTWARE IS SUPPLIED "AS IS" WITHOUT ANY WARRANTIES AND SUPPORT. DISPLAYMODULE ASSUMES
displaymodule 0:d6ff5fa503e8 10 NO RESPONSIBILITY OR LIABILITY FOR THE USE OF THE SOFTWARE.
displaymodule 0:d6ff5fa503e8 11 ********************************************************************************************/
displaymodule 0:d6ff5fa503e8 12
displaymodule 0:d6ff5fa503e8 13 #ifndef DM_TOUCH_h
displaymodule 0:d6ff5fa503e8 14 #define DM_TOUCH_h
displaymodule 0:d6ff5fa503e8 15
displaymodule 0:d6ff5fa503e8 16 #include "dm_platform.h"
displaymodule 0:d6ff5fa503e8 17
displaymodule 7:6cd8c36cbdb3 18 typedef struct calibrationMatrix {
displaymodule 7:6cd8c36cbdb3 19 int32_t a, b, c, d, e, f;
displaymodule 7:6cd8c36cbdb3 20 } CalibrationMatrix;
displaymodule 7:6cd8c36cbdb3 21
displaymodule 0:d6ff5fa503e8 22 class DmTouch
displaymodule 0:d6ff5fa503e8 23 {
displaymodule 0:d6ff5fa503e8 24 public:
displaymodule 0:d6ff5fa503e8 25 enum Display {
displaymodule 7:6cd8c36cbdb3 26 DM_TFT28_103 = 103,
displaymodule 7:6cd8c36cbdb3 27 DM_TFT24_104 = 104,
displaymodule 7:6cd8c36cbdb3 28 DM_TFT28_105 = 105,
displaymodule 7:6cd8c36cbdb3 29 DM_TFT35_107 = 107
displaymodule 7:6cd8c36cbdb3 30 };
displaymodule 7:6cd8c36cbdb3 31
displaymodule 7:6cd8c36cbdb3 32 enum SpiMode {
displaymodule 7:6cd8c36cbdb3 33 Auto,
displaymodule 7:6cd8c36cbdb3 34 Software,
displaymodule 7:6cd8c36cbdb3 35 Hardware
displaymodule 0:d6ff5fa503e8 36 };
displaymodule 0:d6ff5fa503e8 37
displaymodule 0:d6ff5fa503e8 38 #if defined (DM_TOOLCHAIN_ARDUINO)
displaymodule 7:6cd8c36cbdb3 39 DmTouch(Display disp, SpiMode spiMode=Auto, bool useIrq=true);
displaymodule 0:d6ff5fa503e8 40 #elif defined (DM_TOOLCHAIN_MBED)
displaymodule 7:6cd8c36cbdb3 41 DmTouch(Display disp, SpiMode spiMode=Hardware);
displaymodule 0:d6ff5fa503e8 42 #endif
displaymodule 0:d6ff5fa503e8 43 void init();
displaymodule 0:d6ff5fa503e8 44 void readTouchData(uint16_t& posX, uint16_t& posY, bool& touching);
displaymodule 7:6cd8c36cbdb3 45 bool isTouched();
displaymodule 7:6cd8c36cbdb3 46 bool getMiddleXY(uint16_t &x, uint16_t &y); // Raw Touch Data, used for calibration
displaymodule 7:6cd8c36cbdb3 47 void setCalibrationMatrix(CalibrationMatrix calibrationMatrix);
displaymodule 7:6cd8c36cbdb3 48 void setPrecison(uint8_t samplesPerMeasurement);
displaymodule 7:6cd8c36cbdb3 49 void waitForTouch();
displaymodule 7:6cd8c36cbdb3 50 void waitForTouchRelease();
displaymodule 7:6cd8c36cbdb3 51 uint32_t rescaleFactor() { return 1000000; };
displaymodule 10:d263094e666d 52 Display getDisplay() { return _disp; };
displaymodule 7:6cd8c36cbdb3 53
displaymodule 0:d6ff5fa503e8 54 private:
displaymodule 0:d6ff5fa503e8 55 void spiWrite(uint8_t data);
displaymodule 0:d6ff5fa503e8 56 uint8_t spiRead();
displaymodule 0:d6ff5fa503e8 57 uint16_t readData12(uint8_t command);
displaymodule 0:d6ff5fa503e8 58 void enableIrq();
displaymodule 7:6cd8c36cbdb3 59 void readRawData(uint16_t &x, uint16_t &y);
displaymodule 7:6cd8c36cbdb3 60 void getAverageXY(uint16_t &x, uint16_t &y);
displaymodule 7:6cd8c36cbdb3 61 uint16_t getDisplayCoordinateX(uint16_t x_touch, uint16_t y_touch);
displaymodule 7:6cd8c36cbdb3 62 uint16_t getDisplayCoordinateY(uint16_t x_touch, uint16_t y_touch);
displaymodule 7:6cd8c36cbdb3 63 uint16_t calculateMiddleValue(uint16_t values[], uint8_t count);
displaymodule 7:6cd8c36cbdb3 64 bool isSampleValid();
displaymodule 0:d6ff5fa503e8 65
displaymodule 10:d263094e666d 66 Display _disp;
displaymodule 10:d263094e666d 67 uint16_t _width, _height;
displaymodule 0:d6ff5fa503e8 68 bool _hardwareSpi;
displaymodule 7:6cd8c36cbdb3 69 uint8_t _samplesPerMeasurement;
displaymodule 7:6cd8c36cbdb3 70 CalibrationMatrix _calibrationMatrix;
displaymodule 7:6cd8c36cbdb3 71 uint8_t _cs, _clk, _mosi, _miso;
displaymodule 7:6cd8c36cbdb3 72 int8_t _irq;
displaymodule 0:d6ff5fa503e8 73
displaymodule 0:d6ff5fa503e8 74 #if defined (DM_TOOLCHAIN_ARDUINO)
displaymodule 0:d6ff5fa503e8 75 regtype *_pinDC, *_pinCS, *_pinCLK, *_pinMOSI, *_pinMISO, *_pinIrq;
displaymodule 0:d6ff5fa503e8 76 regsize _bitmaskDC, _bitmaskCS, _bitmaskCLK, _bitmaskMOSI, _bitmaskMISO, _bitmaskIrq;
displaymodule 0:d6ff5fa503e8 77 uint8_t _spiSettings;
displaymodule 0:d6ff5fa503e8 78 #elif defined (DM_TOOLCHAIN_MBED)
displaymodule 3:02c19cbc707c 79 DigitalOut *_pinDC, *_pinCS, *_pinCLK, *_pinMOSI, *_led;
displaymodule 8:b24f01d148c4 80 DigitalIn *_pinMISO;
displaymodule 0:d6ff5fa503e8 81 SPI *_spi;
displaymodule 0:d6ff5fa503e8 82 #endif
displaymodule 0:d6ff5fa503e8 83
displaymodule 0:d6ff5fa503e8 84 };
displaymodule 0:d6ff5fa503e8 85 #endif