File content as of revision 3:251e4d020501:

#include "mbed.h"
#include "SPI.h"

//ILI9225 Aspect ratio
#define ILI9225_LCD_WIDTH  176
#define ILI9225_LCD_HEIGHT 220

//ILI9225 Registers
#define ILI9225_DRIVER_OUTPUT_CTRL      (0x01u)  //Driver Output Control
#define ILI9225_LCD_AC_DRIVING_CTRL     (0x02u)  //LCD AC Driving Control
#define ILI9225_ENTRY_MODE              (0x03u)  //Entry Mode
#define ILI9225_DISP_CTRL1              (0x07u)  //Display Control 1
#define ILI9225_BLANK_PERIOD_CTRL1      (0x08u)  //Blank Period Control
#define ILI9225_FRAME_CYCLE_CTRL        (0x0Bu)  //Frame Cycle Control
#define ILI9225_INTERFACE_CTRL          (0x0Cu)  //Interface Control
#define ILI9225_OSC_CTRL                (0x0Fu)  //Osc Control
#define ILI9225_POWER_CTRL1             (0x10u)  //Power Control 1
#define ILI9225_POWER_CTRL2             (0x11u)  //Power Control 2
#define ILI9225_POWER_CTRL3             (0x12u)  //Power Control 3
#define ILI9225_POWER_CTRL4             (0x13u)  //Power Control 4
#define ILI9225_POWER_CTRL5             (0x14u)  //Power Control 5
#define ILI9225_VCI_RECYCLING           (0x15u)  //VCI Recycling
#define ILI9225_RAM_ADDR_SET1           (0x20u)  //Horizontal GRAM Address Set
#define ILI9225_RAM_ADDR_SET2           (0x21u)  //Vertical GRAM Address Set
#define ILI9225_GRAM_DATA_REG           (0x22u)  //GRAM Data Register
#define ILI9225_GATE_SCAN_CTRL          (0x30u)  //Gate Scan Control Register
#define ILI9225_VERTICAL_SCROLL_CTRL1   (0x31u)  //Vertical Scroll Cont 1 Reg
#define ILI9225_VERTICAL_SCROLL_CTRL2   (0x32u)  //Vertical Scroll Cont 2 Reg
#define ILI9225_VERTICAL_SCROLL_CTRL3   (0x33u)  //Vertical Scroll Cont 3 Reg
#define ILI9225_PARTIAL_DRIVING_POS1    (0x34u)  //Partial Driving Pos 1 Reg
#define ILI9225_PARTIAL_DRIVING_POS2    (0x35u)  //Partial Driving Pos 2 Reg
#define ILI9225_HORIZONTAL_WINDOW_ADDR1 (0x36u)  //Horizontal Address Start Pos
#define ILI9225_HORIZONTAL_WINDOW_ADDR2 (0x37u)  //Horizontal Address End Pos
#define ILI9225_VERTICAL_WINDOW_ADDR1   (0x38u)  //Vertical Address Start Pos
#define ILI9225_VERTICAL_WINDOW_ADDR2   (0x39u)  //Vertical Address End Pos
#define ILI9225_GAMMA_CTRL1             (0x50u)  //Gamma Control 1
#define ILI9225_GAMMA_CTRL2             (0x51u)  //Gamma Control 2
#define ILI9225_GAMMA_CTRL3             (0x52u)  //Gamma Control 3
#define ILI9225_GAMMA_CTRL4             (0x53u)  //Gamma Control 4
#define ILI9225_GAMMA_CTRL5             (0x54u)  //Gamma Control 5
#define ILI9225_GAMMA_CTRL6             (0x55u)  //Gamma Control 6
#define ILI9225_GAMMA_CTRL7             (0x56u)  //Gamma Control 7
#define ILI9225_GAMMA_CTRL8             (0x57u)  //Gamma Control 8
#define ILI9225_GAMMA_CTRL9             (0x58u)  //Gamma Control 9
#define ILI9225_GAMMA_CTRL10            (0x59u)  //Gamma Control 10

#define ILI9225C_INVOFF  0x20
#define ILI9225C_INVON   0x21

//RGB 24-bits color table definition (RGB888).
#define RGB888_RGB565(color) ((((color) >> 19) & 0x1f) << 11) | \
    ((((color) >> 10) & 0x3f) << 5) | (((color) >> 3) & 0x1f)

#define COLOR_BLACK          RGB888_RGB565(0x000000u)
#define COLOR_WHITE          RGB888_RGB565(0xFFFFFFu)
#define COLOR_BLUE           RGB888_RGB565(0x0000FFu)
#define COLOR_GREEN          RGB888_RGB565(0x00FF00u)
#define COLOR_RED            RGB888_RGB565(0xFF0000u)
#define COLOR_NAVY           RGB888_RGB565(0x000080u)
#define COLOR_DARKBLUE       RGB888_RGB565(0x00008Bu)
#define COLOR_DARKGREEN      RGB888_RGB565(0x006400u)
#define COLOR_DARKCYAN       RGB888_RGB565(0x008B8Bu)
#define COLOR_CYAN           RGB888_RGB565(0x00FFFFu)
#define COLOR_TURQUOISE      RGB888_RGB565(0x40E0D0u)
#define COLOR_INDIGO         RGB888_RGB565(0x4B0082u)
#define COLOR_DARKRED        RGB888_RGB565(0x800000u)
#define COLOR_OLIVE          RGB888_RGB565(0x808000u)
#define COLOR_GRAY           RGB888_RGB565(0x808080u)
#define COLOR_SKYBLUE        RGB888_RGB565(0x87CEEBu)
#define COLOR_BLUEVIOLET     RGB888_RGB565(0x8A2BE2u)
#define COLOR_LIGHTGREEN     RGB888_RGB565(0x90EE90u)
#define COLOR_DARKVIOLET     RGB888_RGB565(0x9400D3u)
#define COLOR_YELLOWGREEN    RGB888_RGB565(0x9ACD32u)
#define COLOR_BROWN          RGB888_RGB565(0xA52A2Au)
#define COLOR_DARKGRAY       RGB888_RGB565(0xA9A9A9u)
#define COLOR_SIENNA         RGB888_RGB565(0xA0522Du)
#define COLOR_LIGHTBLUE      RGB888_RGB565(0xADD8E6u)
#define COLOR_GREENYELLOW    RGB888_RGB565(0xADFF2Fu)
#define COLOR_SILVER         RGB888_RGB565(0xC0C0C0u)
#define COLOR_LIGHTGREY      RGB888_RGB565(0xD3D3D3u)
#define COLOR_LIGHTCYAN      RGB888_RGB565(0xE0FFFFu)
#define COLOR_VIOLET         RGB888_RGB565(0xEE82EEu)
#define COLOR_AZUR           RGB888_RGB565(0xF0FFFFu)
#define COLOR_BEIGE          RGB888_RGB565(0xF5F5DCu)
#define COLOR_MAGENTA        RGB888_RGB565(0xFF00FFu)
#define COLOR_TOMATO         RGB888_RGB565(0xFF6347u)
#define COLOR_GOLD           RGB888_RGB565(0xFFD700u)
#define COLOR_ORANGE         RGB888_RGB565(0xFFA500u)
#define COLOR_SNOW           RGB888_RGB565(0xFFFAFAu)
#define COLOR_YELLOW         RGB888_RGB565(0xFFFF00u)

//Font definitions
#define FONT_HEADER_SIZE 4 //1: pixel width of 1 font char, 2: pixel height 
#define readFontByte(x) pgm_read_byte(&cfont.font[x])

extern const uint8_t Terminal12x16[];

struct _currentFont {
    const uint8_t* font;
    uint8_t width;
    uint8_t height;
    uint8_t offset;
    uint8_t numchars;
    uint8_t nbrows;
};

//Main and core class
class ILI9225 {
    public:
        ILI9225(PinName RST, PinName RS, PinName CS, PinName SDI,
            PinName CLK, PinName LED);

        //Initialization
        void begin(void);
    
        //Clear the screen
        void clear(void);
    
        //Fill the screen with color:
        void fill(uint16_t color);
    
        //Invert screen
        //@param  flag true to invert, false for normal screen
        void invert(bool flag);
    
        //Switch backlight on or off
        //@param flag true=on, false=off
        void setBacklight(bool flag);
    
        //Switch display on or off
        //@param flag true=on, false=off
        void setDisplay(bool flag);
    
        //Set orientation
        //@param orientation orientation, 0=portrait, 1=right rotated landscape,
        //2=reverse portrait, 3=left rotated landscape
        void setOrientation(uint8_t orientation);
    
        //Font size, x-axis
        //@return horizontal size of current font, in pixels
        uint8_t fontX(void);
    
        //Font size, y-axis
        //@return vertical size of current font, in pixels
        uint8_t fontY(void);
    
        //Screen size, x-axis
        //@return horizontal size of the screen, in pixels
        //@note 240 means 240 pixels and thus 0..239 coordinates (decimal)
        uint16_t maxX(void);
    
        //Screen size, y-axis
        //@return vertical size of the screen, in pixels
        //@note 220 means 220 pixels and thus 0..219 coordinates (decimal)
        uint16_t maxY(void);
    
        //Set background color
        //@param color background color, default=black
        void setBackgroundColor(uint16_t color = COLOR_BLACK);
    
        //Draw line, rectangle coordinates
        //@param x1 top left coordinate, x-axis
        //@param y1 top left coordinate, y-axis
        //@param x2 bottom right coordinate, x-axis
        //@param y2 bottom right coordinate, y-axis
        //@param color 16-bit color
        void drawLine(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2,
            uint16_t color);
    
        //Draw rectangle, rectangle coordinates
        //@param x1 top left coordinate, x-axis
        //@param y1 top left coordinate, y-axis
        //@param x2 bottom right coordinate, x-axis
        //@param y2 bottom right coordinate, y-axis
        //@param color 16-bit color
        void drawRectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2,
            uint16_t color);
    
        //Draw solid rectangle, rectangle coordinates
        //@param x1 top left coordinate, x-axis
        //@param y1 top left coordinate, y-axis
        //@param x2 bottom right coordinate, x-axis
        //@param y2 bottom right coordinate, y-axis
        //@param color 16-bit color
        void fillRectangle(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2,
            uint16_t color);
    
        //Draw pixel
        //@param x1 point coordinate, x-axis
        //@param y1 point coordinate, y-axis
        //@param color 16-bit color
        void drawPixel(uint16_t x1, uint16_t y1, uint16_t color);
    
        //Draw ASCII Text (pixel coordinates)
        //@param x point coordinate, x-axis
        //@param y point coordinate, y-axis
        //@param s text string
        //@param color 16-bit color, default=white
        void drawText(uint16_t x, uint16_t y, char *s,
            uint16_t color = COLOR_WHITE);
    
        //Calculate 16-bit color from 8-bit Red-Green-Blue components
        //@param red red component, 0x00..0xff
        //@param green green component, 0x00..0xff
        //@param blue blue component, 0x00..0xff
        //@return 16-bit color
        uint16_t setColor(uint8_t red, uint8_t green, uint8_t blue);
    
        //Calculate 8-bit Red-Green-Blue components from 16-bit color
        //@param rgb 16-bit color
        //@param red red component, 0x00..0xff
        //@param green green component, 0x00..0xff
        //@param blue blue component, 0x00..0xff
        void splitColor(uint16_t rgb, uint8_t &red, uint8_t &green,
            uint8_t &blue);
    
        //Set current font
        //@param font Font name
        void setFont(const uint8_t* font);
    
        //Draw single character (pixel coordinates)
        //@param x point coordinate, x-axis
        //@param y point coordinate, y-axis
        //@param ch ASCII character
        //@param color 16-bit color, default=white
        uint16_t drawChar(uint16_t x, uint16_t y, uint16_t ch,
            uint16_t color = COLOR_WHITE);
    
        void goToXY(int x, int y);
        void unicode2ascii(char *uni_str, char *ascii_str); 
        void roundRectangle(int x0, int y0, int x1, int y1, int rad, bool fill,
            int color);
    
    private:
        SPI spi;
    
        void _swap(uint16_t &a, uint16_t &b),
            _setWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1),
            _orientCoordinates(uint16_t &x1, uint16_t &y1),
            _writeRegister(uint16_t reg, uint16_t data),
            _writeData(uint8_t HI, uint8_t LO),
            _writeCommand(uint8_t HI, uint8_t LO);
    
        uint16_t _maxX, _maxY, _bgColor;
    
        PinName  _rst, _rs, _cs, _sdi, _clk, _led;
        DigitalInOut _rsInOut;
        DigitalInOut _csInOut;
        DigitalInOut _rstInOut;
        DigitalInOut _ledInOut;
        uint8_t _orientation;
    
        bool  hwSPI;
    
        _currentFont cfont;
};