File content as of revision 0:a5ef6bc3c2e8:

//
// TFT_4DGL is a class to drive 4D Systems TFT touch screens
//
// Copyright (C) <2010> Stephane ROCHON <stephane.rochon at free.fr>
//
// TFT_4DGL is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// TFT_4DGL 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with TFT_4DGL.  If not, see <http://www.gnu.org/licenses/>.

#include "mbed.h"

#ifndef DEBUGMODE
#define DEBUGMODE 1
#endif

// functions
#define CHECK_BIT(var,pos) ((var) & (1<<(pos)))

// Common WAIT value in millisecond
#define TEMPO 1

// Main Functions values
#define CLS_MSB             0xFF
#define CLS_LSB             0xCD
#define BAUDRATE_MSB        0x00
#define BAUDRATE_LSB        0x26

// text functions values
#define TEXT_BG_COLOR_MSB   0xFF
#define TEXT_BG_COLOR_LSB   0xE6
#define SET_FONT_MSB        0xFF
#define SET_FONT_LSB        0xE5
#define PUT_CHAR_MSB        0xFF
#define PUT_CHAR_LSB        0xFE
#define PUT_STRING_MSB      0x00
#define PUT_STRING_LSB      0x18
#define MOVE_CURSOR_MSB     0xFF
#define MOVE_CURSOR_LSB     0xE9
#define TEXT_FG_COLOR_MSB   0xFF
#define TEXT_FG_COLOR_LSB   0xE7
#define TEXT_WIDTH_MSB      0xFF
#define TEXT_WIDTH_LSB      0xE4
#define TEXT_HEIGHT_MSB     0xFF
#define TEXT_HEIGHT_LSB     0xE3
#define TEXT_X_GAP_MSB      0xFF
#define TEXT_X_GAP_LSB      0xE2
#define TEXT_Y_GAP_MSB      0xFF
#define TEXT_Y_GAP_LSB      0xE1
#define TEXT_BOLD_MSB       0xFF
#define TEXT_BOLD_LSB       0xDE
#define TEXT_INVERSE_MSB    0xFF
#define TEXT_INVERSE_LSB    0xDC
#define TEXT_ITALIC_MSB     0xFF
#define TEXT_ITALIC_LSB     0xDD
#define TEXT_OPACITY_MSB    0xFF
#define TEXT_OPACITY_LSB    0xDF
#define TEXT_UNDERLINE_MSB  0xFF
#define TEXT_UNDERLINE_LSB  0xDB
#define TEXT_ATTRIBUTES_MSB 0xFF
#define TEXT_ATTRIBUTES_LSB 0xDA

// graphics functions values
#define CHANGE_COLOR_MSB    0xFF
#define CHANGE_COLOR_LSB    0xB4
#define DRAW_CIRCLE_MSB    0xFF
#define DRAW_CIRCLE_LSB    0xC3


// Screen answers
#define ACK     0x06
#define NACK     0x15

// Screen states
#define OFF          '\x00'
#define ON           '\x01'

// Graphics modes
#define SOLID        '\x00'
#define WIREFRAME    '\x01'

// Text modes
#define TRANSPARENT  '\x00'
#define OPAQUE       '\x01'

// Predefined Fonts
#define FONT1_MSB   0x00
#define FONT1_LSB   0x00
#define FONT2_MSB   0x00
#define FONT2_LSB   0x01
#define FONT3_MSB   0x00
#define FONT3_LSB   0x02

// Line and column values depending on orientation and font F1LL = font1 landscape line
#define F1LL    29
#define F1LC    44
#define F1PL    39
#define F1PC    33

#define F2LL    29
#define F2LC    39
#define F2PL    39
#define F2PC    29

#define F3LL    19
#define F3LC    39
#define F3PL    26
#define F3PC    29

// Touch Values
#define WAIT         '\x00'
#define PRESS        '\x01'
#define RELEASE      '\x02'
#define MOVE         '\x03'
#define STATUS       '\x04'
#define GETPOSITION  '\x05'

// Data speed
#define BAUD_300_MSB     0x00
#define BAUD_300_LSB     0x01
#define BAUD_600_MSB     0x00
#define BAUD_600_LSB     0x02
#define BAUD_1200_MSB    0x00
#define BAUD_1200_LSB    0x03
#define BAUD_2400_MSB    0x00
#define BAUD_2400_LSB    0x04
#define BAUD_4800_MSB    0x00
#define BAUD_4800_LSB    0x05
#define BAUD_9600_MSB    0x00
#define BAUD_9600_LSB    0x06
#define BAUD_14400_MSB   0x00
#define BAUD_14400_LSB   0x07
#define BAUD_19200_MSB   0x00
#define BAUD_19200_LSB   0x08
#define BAUD_38400_MSB   0x00
#define BAUD_38400_LSB   0x0A
#define BAUD_56000_MSB   0x00
#define BAUD_56000_LSB   0x0B
#define BAUD_57600_MSB   0x00
#define BAUD_57600_LSB   0x0C
#define BAUD_115200_MSB  0x00
#define BAUD_115200_LSB  0x0D
#define BAUD_128000_MSB  0x0E
#define BAUD_128000_LSB  0x0E
#define BAUD_256000_MSB  0x0F
#define BAUD_256000_LSB  0x0F
#define BAUD_300000_MSB  0x10
#define BAUD_300000_LSB  0x10
#define BAUD_375000_MSB  0x11
#define BAUD_375000_LSB  0x11
#define BAUD_500000_MSB  0x12
#define BAUD_500000_LSB  0x12
#define BAUD_600000_MSB  0x13
#define BAUD_600000_LSB  0x13

// Defined Colors
#define BLACK_MSB       0x00
#define BLACK_LSB       0x00
#define NAVY_MSB        0x00
#define NAVY_LSB        0x0F
#define DGREEN_MSB      0x03
#define DGREEN_LSB      0xE0
#define DCYAN_MSB       0x03
#define DCYAN_LSB       0xEF
#define PURPLE_MSB      0x78
#define PURPLE_LSB      0x0F
#define OLIVE_MSB       0x7B
#define OLIVE_LSB       0xE0
#define GREY_MSB        0x84
#define GREY_LSB        0x10
#define BLUE_MSB        0x00
#define BLUE_LSB        0x1F
#define GREEN_MSB       0x07
#define GREEN_LSB       0xE0
#define RED_MSB         0xF8
#define RED_LSB         0x00
#define YELLOW_MSB      0xFF
#define YELLOW_LSB      0xE0
#define WHITE_MSB       0xFF
#define WHITE_LSB       0xFF
#define ORANGE_MSB      0xFD
#define ORANGE_LSB      0x20
#define G_YELLOW_MSB    0xAF
#define G_YELLOW_LSB    0xE5
#define PINK_MSB        0xF8
#define PINK_LSB        0x1F
#define VIOLET_MSB      0x90
#define VIOLET_LSB      0x1A
#define AQUA_MSB        0x07
#define AQUA_LSB        0xFF
#define CREAM_MSB       0xFF
#define CREAM_LSB       0xDE

// Mode data
#define BACKLIGHT    '\x00'
#define DISPLAY      '\x01'
#define CONTRAST     '\x02'
#define POWER        '\x03'
#define ORIENTATION_MSB  '\xFF'
#define ORIENTATION_LSB  '\x9E'
#define TOUCH_CTRL   '\x05'
#define IMAGE_FORMAT '\x06'
#define PROTECT_FAT  '\x08'

// change this to your specific screen (newer versions) if needed
// Startup orientation is PORTRAIT so SIZE_X must be lesser than SIZE_Y
//#define SIZE_X       240
//#define SIZE_Y       320

//#define IS_LANDSCAPE 0
//#define IS_PORTRAIT  1

// Screen orientation
#define LANDSCAPE_MSB   0x00
#define LANDSCAPE_LSB   0x00
#define LANDSCAPE_R_MSB 0x00
#define LANDSCAPE_R_LSB 0x01
#define PORTRAIT_MSB    0x00
#define PORTRAIT_LSB    0x02
#define PORTRAIT_R_MSB  0x00
#define PORTRAIT_R_LSB  0x03

// Parameters
//#define ENABLE       '\x00'
//#define DISABLE      '\x01'
//#define RESET        '\x02'

//#define NEW          '\x00'
//#define OLD          '\x01'

//#define DOWN         '\x00'
//#define UP           '\x01'

//#define PROTECT      '\x00'
//#define UNPROTECT    '\x02'

//**************************************************************************
class TFT_4DGL {

public :

    Serial pc; // serial variable for debug information
    TFT_4DGL(PinName tx, PinName rx, PinName rst); // LCD serial construnctor
    int resp, respLen; // received response from screen
    char response[];
    
// General Commands
    void getResponse();
    void responseBuild(int, char);
    void reset(); // reset screen
    void baudrate(long); // set baudrate
    void screenOrientation(char); // set desired orientation of a screen
    void mainDemo(); // play demo with text based functions
    void textDemo(); // play demo with text based functions
    void graphicsDemo(); // play demo with text based functions

// Graphics Commands
    void cls(); // clear screen
    void changeColor(char, char, char, char); // change one color to another
    void drawCircle(short, short, short, char, char);
    //void circle(int, int, int, int);
    //void triangle(int, int, int, int, int, int, int);
    //void line(int, int, int, int, int);
    //void rectangle(int, int, int, int, int);
    //void ellipse(int, int, int, int, int);
    //void pixel(int, int, int);
    //int  read_pixel(int, int);
    //void screen_copy(int, int, int, int, int, int);
    //void pen_size(char); 
    //void SD_Card_Wav(char[]);
    //void Set_Volume(char);
    //void uSD_FAT_Image(char[], int, int, long);
    //void uSD_Image(int, int, long);
    //void uSD_Video(int, int, long);

// Texts Commands
    void setFont(char); // set desired font from embedded fonts
    char moveCursor(short, short); // move cursot to a specific location
    char validateMoveCursor(short, short); // check if requested values are not out of range, based on font and orientation
    void textBgColor(char, char); // set background color of next text messages
    void putc(char); // send a single character to LCD
    void puts(char *); // send a string to LCD
    void textFgColor(char, char); // set text color
    int textWidth(short);
    int textHeight(short);
    int textXGap(short);
    int textYGap(short);
    void textBold(short);
    void textInverse(short);
    void textItalic(short);
    void textOpacity(short);
    void textUnderline(short);
    void textAttributes(short);
    
    
    //void text_mode(char);
    //void textChar(char);
    //void graphic_char(char, int, int, int, char, char);
    //void textString(char *); // +
    //void graphic_string(char *, int, int, char, int, char, char);
    //void text_button(char *, char, int, int, int, char, int, char, char);

    //void locate(char, char);

// Touch Command
    //void touch_mode(char);
    //void get_touch(int *, int *);
    //void wait_touch(int);
    //void set_touch(int, int, int, int);
    //int  touch_status(void);
    //void Pause_Until_Touch(int *, int *);

// Screen Data
    //int type;
    //int revision;
    //int firmware;
    //int reserved1;
    //int reserved2;

// Text data
    char currentFont;
    char currentOrientation;
    
    //char current_col;
    //char current_row;
    //int  current_color;
    //char max_col;
    //char max_row;

protected :

    Serial     _cmd;
    DigitalOut _rst;

    void freeBUFFER  (void);
    void writeBYTE   (char);
    void  writeCOMMAND(char *, int);
    //int  readVERSION (char *, int);
    //void getTOUCH    (char *, int, int *,int *);
    //int  getSTATUS   (char *, int);
    //void version     (void);
};

typedef unsigned char BYTE;