acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
Arduino_ILI9486_18bit.cpp (4543B)
      1 /*
      2  * start rewrite from:
      3  * https://github.com/adafruit/Adafruit-GFX-Library.git
      4  */
      5 #include "Arduino_ILI9486_18bit.h"
      6 
      7 Arduino_ILI9486_18bit::Arduino_ILI9486_18bit(Arduino_DataBus *bus, int8_t rst, uint8_t r, bool ips)
      8     : Arduino_TFT_18bit(bus, rst, r, ips, ILI9486_TFTWIDTH, ILI9486_TFTHEIGHT, 0, 0, 0, 0)
      9 {
     10 }
     11 
     12 bool Arduino_ILI9486_18bit::begin(int32_t speed)
     13 {
     14   return Arduino_TFT::begin(speed);
     15 }
     16 
     17 // Companion code to the above tables.  Reads and issues
     18 // a series of LCD commands stored in PROGMEM byte array.
     19 void Arduino_ILI9486_18bit::tftInit()
     20 {
     21   if (_rst != GFX_NOT_DEFINED)
     22   {
     23     pinMode(_rst, OUTPUT);
     24     digitalWrite(_rst, HIGH);
     25     delay(100);
     26     digitalWrite(_rst, LOW);
     27     delay(ILI9486_RST_DELAY);
     28     digitalWrite(_rst, HIGH);
     29     delay(ILI9486_RST_DELAY);
     30   }
     31   else
     32   {
     33     // Software Rest
     34     _bus->sendCommand(ILI9486_SWRESET);
     35     delay(ILI9486_RST_DELAY);
     36   }
     37 
     38   _bus->sendCommand(ILI9486_SLPOUT); // Exit Sleep
     39   delay(ILI9486_SLPIN_DELAY);
     40 
     41   _bus->sendCommand(0x3A);
     42   _bus->sendData(0x66); // 18-bit color
     43 
     44   _bus->sendCommand(0xC2);
     45   _bus->sendData(0x44);
     46 
     47   _bus->sendCommand(0xC5);
     48   _bus->sendData(0x00);
     49   _bus->sendData(0x00);
     50   _bus->sendData(0x00);
     51   _bus->sendData(0x00);
     52 
     53   _bus->sendCommand(0xE0);
     54   _bus->sendData(0x0F);
     55   _bus->sendData(0x1F);
     56   _bus->sendData(0x1C);
     57   _bus->sendData(0x0C);
     58   _bus->sendData(0x0F);
     59   _bus->sendData(0x08);
     60   _bus->sendData(0x48);
     61   _bus->sendData(0x98);
     62   _bus->sendData(0x37);
     63   _bus->sendData(0x0A);
     64   _bus->sendData(0x13);
     65   _bus->sendData(0x04);
     66   _bus->sendData(0x11);
     67   _bus->sendData(0x0D);
     68   _bus->sendData(0x00);
     69 
     70   _bus->sendCommand(0xE1);
     71   _bus->sendData(0x0F);
     72   _bus->sendData(0x32);
     73   _bus->sendData(0x2E);
     74   _bus->sendData(0x0B);
     75   _bus->sendData(0x0D);
     76   _bus->sendData(0x05);
     77   _bus->sendData(0x47);
     78   _bus->sendData(0x75);
     79   _bus->sendData(0x37);
     80   _bus->sendData(0x06);
     81   _bus->sendData(0x10);
     82   _bus->sendData(0x03);
     83   _bus->sendData(0x24);
     84   _bus->sendData(0x20);
     85   _bus->sendData(0x00);
     86 
     87   if (_ips)
     88   {
     89     _bus->sendCommand(ILI9486_INVON);
     90   }
     91   else
     92   {
     93     _bus->sendCommand(ILI9486_INVOFF);
     94   }
     95 
     96   _bus->sendCommand(ILI9486_DISPON); // Display on
     97   delay(25);
     98 }
     99 
    100 void Arduino_ILI9486_18bit::writeAddrWindow(int16_t x, int16_t y, uint16_t w, uint16_t h)
    101 {
    102   if ((x != _currentX) || (w != _currentW))
    103   {
    104     int16_t x_start = x + _xStart, x_end = x + w - 1 + _xStart;
    105 
    106     _bus->writeCommand(ILI9486_CASET); // Column addr set
    107     _bus->write(x_start >> 8);
    108     _bus->write(x_start & 0xFF); // XSTART
    109     _bus->write(x_end >> 8);
    110     _bus->write(x_end & 0xFF); // XEND
    111 
    112     _currentX = x;
    113     _currentW = w;
    114   }
    115   if ((y != _currentY) || (h != _currentH))
    116   {
    117     int16_t y_start = y + _yStart, y_end = y + h - 1 + _yStart;
    118 
    119     _bus->writeCommand(ILI9486_PASET); // Row addr set
    120     _bus->write(y_start >> 8);
    121     _bus->write(y_start & 0xFF); // YSTART
    122     _bus->write(y_end >> 8);
    123     _bus->write(y_end & 0xFF); // YEND
    124 
    125     _currentY = y;
    126     _currentH = h;
    127   }
    128 
    129   _bus->writeCommand(ILI9486_RAMWR); // write to RAM
    130 }
    131 
    132 /**************************************************************************/
    133 /*!
    134     @brief   Set origin of (0,0) and orientation of TFT display
    135     @param   m  The index for rotation, from 0-3 inclusive
    136 */
    137 /**************************************************************************/
    138 void Arduino_ILI9486_18bit::setRotation(uint8_t r)
    139 {
    140   Arduino_TFT::setRotation(r);
    141   switch (_rotation)
    142   {
    143   case 1:
    144     r = (ILI9486_MADCTL_MV | ILI9486_MADCTL_BGR);
    145     break;
    146   case 2:
    147     r = (ILI9486_MADCTL_MY | ILI9486_MADCTL_BGR);
    148     break;
    149   case 3:
    150     r = (ILI9486_MADCTL_MY | ILI9486_MADCTL_MX | ILI9486_MADCTL_MV | ILI9486_MADCTL_BGR);
    151     break;
    152   case 4:
    153     r = (ILI9486_MADCTL_BGR);
    154     break;
    155   case 5:
    156     r = (ILI9486_MADCTL_MY | ILI9486_MADCTL_MV | ILI9486_MADCTL_BGR);
    157     break;
    158   case 6:
    159     r = (ILI9486_MADCTL_MY | ILI9486_MADCTL_MX | ILI9486_MADCTL_BGR);
    160     break;
    161   case 7:
    162     r = (ILI9486_MADCTL_MX | ILI9486_MADCTL_MV | ILI9486_MADCTL_BGR);
    163     break;
    164   default: // case 0:
    165     r = (ILI9486_MADCTL_MX | ILI9486_MADCTL_BGR);
    166     break;
    167   }
    168   _bus->beginWrite();
    169   _bus->writeCommand(ILI9486_MADCTL);
    170   _bus->write(r);
    171   _bus->endWrite();
    172 }
    173 
    174 void Arduino_ILI9486_18bit::invertDisplay(bool i)
    175 {
    176   _bus->sendCommand(i ? ILI9486_INVON : ILI9486_INVOFF);
    177 }
    178 
    179 void Arduino_ILI9486_18bit::displayOn(void)
    180 {
    181   _bus->sendCommand(ILI9486_SLPOUT);
    182   delay(ILI9486_SLPOUT_DELAY);
    183 }
    184 
    185 void Arduino_ILI9486_18bit::displayOff(void)
    186 {
    187   _bus->sendCommand(ILI9486_SLPIN);
    188   delay(ILI9486_SLPIN_DELAY);
    189 }