text: /*
  See rights and use declaration in License.h
  This library has been modified for the Maple Mini
  */
  
  #ifndef _ADAFRUIT_ILI9341H_
  #define _ADAFRUIT_ILI9341H_
  
  #include "Arduino.h"
  #include <Adafruit_GFX_AS.h>
  #include <SPI.h>
  
  #ifndef swap
    #define swap(a, b) { int16_t t = a; a = b; b = t; }
  #endif
  
  #define ILI9341_TFTWIDTH  240
  #define ILI9341_TFTHEIGHT 320
  
  #define ILI9341_NOP     0x00
  #define ILI9341_SWRESET 0x01
  #define ILI9341_RDDID   0x04
  #define ILI9341_RDDST   0x09
  
  #define ILI9341_SLPIN   0x10
  #define ILI9341_SLPOUT  0x11
  #define ILI9341_PTLON   0x12
  #define ILI9341_NORON   0x13
  
  #define ILI9341_RDMODE  0x0A
  #define ILI9341_RDMADCTL  0x0B
  #define ILI9341_RDPIXFMT  0x0C
  #define ILI9341_RDIMGFMT  0x0A
  #define ILI9341_RDSELFDIAG  0x0F
  
  #define ILI9341_INVOFF  0x20
  #define ILI9341_INVON   0x21
  #define ILI9341_GAMMASET 0x26
  #define ILI9341_DISPOFF 0x28
  #define ILI9341_DISPON  0x29
  
  #define ILI9341_CASET   0x2A
  #define ILI9341_PASET   0x2B
  #define ILI9341_RAMWR   0x2C
  #define ILI9341_RAMRD   0x2E
  
  #define ILI9341_PTLAR   0x30
  #define ILI9341_MADCTL  0x36
  #define ILI9341_PIXFMT  0x3A
  
  #define ILI9341_FRMCTR1 0xB1
  #define ILI9341_FRMCTR2 0xB2
  #define ILI9341_FRMCTR3 0xB3
  #define ILI9341_INVCTR  0xB4
  #define ILI9341_DFUNCTR 0xB6
  
  #define ILI9341_PWCTR1  0xC0
  #define ILI9341_PWCTR2  0xC1
  #define ILI9341_PWCTR3  0xC2
  #define ILI9341_PWCTR4  0xC3
  #define ILI9341_PWCTR5  0xC4
  #define ILI9341_VMCTR1  0xC5
  #define ILI9341_VMCTR2  0xC7
  
  #define ILI9341_RDID1   0xDA
  #define ILI9341_RDID2   0xDB
  #define ILI9341_RDID3   0xDC
  #define ILI9341_RDID4   0xDD
  
  #define ILI9341_GMCTRP1 0xE0
  #define ILI9341_GMCTRN1 0xE1
  /*
  #define ILI9341_PWCTR6  0xFC
  
  */
  
  // Color definitions
  #define ILI9341_BLACK       0x0000      /*   0,   0,   0 */
  #define ILI9341_NAVY        0x000F      /*   0,   0, 128 */
  #define ILI9341_DARKGREEN   0x03E0      /*   0, 128,   0 */
  #define ILI9341_DARKCYAN    0x03EF      /*   0, 128, 128 */
  #define ILI9341_MAROON      0x7800      /* 128,   0,   0 */
  #define ILI9341_PURPLE      0x780F      /* 128,   0, 128 */
  #define ILI9341_OLIVE       0x7BE0      /* 128, 128,   0 */
  #define ILI9341_LIGHTGREY   0xC618      /* 192, 192, 192 */
  #define ILI9341_DARKGREY    0x7BEF      /* 128, 128, 128 */
  #define ILI9341_BLUE        0x001F      /*   0,   0, 255 */
  #define ILI9341_GREEN       0x07E0      /*   0, 255,   0 */
  #define ILI9341_CYAN        0x07FF      /*   0, 255, 255 */
  #define ILI9341_RED         0xF800      /* 255,   0,   0 */
  #define ILI9341_MAGENTA     0xF81F      /* 255,   0, 255 */
  #define ILI9341_YELLOW      0xFFE0      /* 255, 255,   0 */
  #define ILI9341_WHITE       0xFFFF      /* 255, 255, 255 */
  #define ILI9341_ORANGE      0xFD20      /* 255, 165,   0 */
  #define ILI9341_GREENYELLOW 0xAFE5      /* 173, 255,  47 */
  #define ILI9341_PINK        0xF81F
  
  class Adafruit_ILI9341_STM : public Adafruit_GFX {
  
   public:
  
    Adafruit_ILI9341_STM(int8_t _CS, int8_t _DC, int8_t _RST = -1);
  
    void     begin(SPIClass & spi, uint32_t freq=48000000);
    void     begin(void) { begin(SPI); }
    void     setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1),
             pushColor(uint16_t color),
             pushColors(void * colorBuffer, uint16_t nr_pixels, uint8_t async=0),
             fillScreen(uint16_t color),
  		   drawLine(int16_t x0, int16_t y0,int16_t x1, int16_t y1, uint16_t color),
             drawPixel(int16_t x, int16_t y, uint16_t color),
             drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color),
             drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color),
             fillRect(int16_t x, int16_t y, int16_t w, int16_t h,
               uint16_t color),
             setRotation(uint8_t r),
             invertDisplay(boolean i);
    uint16_t color565(uint8_t r, uint8_t g, uint8_t b);
  
    /* These are not for current use, 8-bit protocol only! */
    uint16_t readPixel(int16_t x, int16_t y);
    uint16_t readPixels(int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t *buf);
    uint16_t readPixelsRGB24(int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint8_t *buf);
  
    uint8_t  readcommand8(uint8_t reg, uint8_t index = 0);
    /*
    uint16_t readcommand16(uint8_t);
    uint32_t readcommand32(uint8_t);
    */
  
  #define DMA_ON_LIMIT 250 // do DMA only for more data than this
  #define SAFE_FREQ  24000000ul // 24MHz for reading
  
  #define writePixel drawPixel
  
  #define dc_command() ( *dcport  =(uint32_t)dcpinmask<<16 ) // 0
  #define dc_data()    ( *dcport  =(uint32_t)dcpinmask )     // 1
  #define cs_clear()   ( *csport  =(uint32_t)cspinmask<<16 )
  #define cs_set()     ( *csport  =(uint32_t)cspinmask )
  #define clk_clear()  ( *clkport =(uint32_t)clkpinmask<<16 )
  #define clk_set()    ( *clkport =(uint32_t)clkpinmask )
  #define mosi_clear() ( *mosiport=(uint32_t)misopinmask<<16 )
  #define mosi_set()   ( *mosiport=(uint32_t)misopinmask )
  #define miso_in()    ( (*misoport)&misopinmask )
  
    inline uint8_t spiread(void)  { return mSPI.transfer(0x00); }
    inline uint8_t readdata(void) { return mSPI.transfer(0x00); }
    inline void    writedata(uint8_t c)   { mSPI.write(c); }
    inline void    spiwrite(uint16_t c)   { mSPI.write(c); }
    inline void    spiwrite16(uint16_t c) { mSPI.write16(c); } // 8 bit mode
  
    void  writecommand(uint8_t c),
          commandList(uint8_t *addr);
  
   private:
    uint32_t _freq, _safe_freq;
    SPIClass & mSPI = SPI;
  
    volatile uint32_t *csport, *dcport;
    int8_t  _cs, _dc, _rst;
    uint16_t  cspinmask, dcpinmask;
    uint16_t lineBuffer[ILI9341_TFTHEIGHT]; // DMA buffer. 16bit color data per pixel
  };
  
  
  #endif
  