acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
Arduino_HX8357A.cpp (4437B)
      1 #include "Arduino_HX8357A.h"
      2 
      3 Arduino_HX8357A::Arduino_HX8357A(Arduino_DataBus *bus, int8_t rst, uint8_t r, bool ips)
      4     : Arduino_TFT(bus, rst, r, ips, HX8357A_TFTWIDTH, HX8357A_TFTHEIGHT, 0, 0, 0, 0)
      5 {
      6 }
      7 
      8 bool Arduino_HX8357A::begin(int32_t speed)
      9 {
     10   return Arduino_TFT::begin(speed);
     11 }
     12 
     13 /**************************************************************************/
     14 /*!
     15     @brief   Set origin of (0,0) and orientation of TFT display
     16     @param   m  The index for rotation, from 0-3 inclusive
     17 */
     18 /**************************************************************************/
     19 void Arduino_HX8357A::setRotation(uint8_t r)
     20 {
     21   Arduino_TFT::setRotation(r);
     22   switch (_rotation)
     23   {
     24   case 3:
     25     // TODO: not working
     26     r = (HX8357A_MADCTL_MY | HX8357A_MADCTL_MV | HX8357A_MADCTL_BGR);
     27     break;
     28   case 2:
     29     r = (HX8357A_MADCTL_MX | HX8357A_MADCTL_BGR);
     30     break;
     31   case 1:
     32     // TODO: not working
     33     r = (HX8357A_MADCTL_MX | HX8357A_MADCTL_MV | HX8357A_MADCTL_BGR);
     34     break;
     35   default: // case 0:
     36     r = (HX8357A_MADCTL_MY | HX8357A_MADCTL_BGR);
     37     break;
     38   }
     39   _bus->beginWrite();
     40   _bus->writeC8D8(HX8357A_MEMORY_ACCESS_CONTROL, r);
     41   _bus->endWrite();
     42 }
     43 
     44 void Arduino_HX8357A::writeAddrWindow(int16_t x, int16_t y, uint16_t w, uint16_t h)
     45 {
     46   if ((x != _currentX) || (w != _currentW))
     47   {
     48     _currentX = x;
     49     _currentW = w;
     50     x += _xStart;
     51     _data16.value = x;
     52     _bus->writeC8D8(HX8357A_COLUMN_ADDRESS_COUNTER_2, _data16.msb);
     53     _bus->writeC8D8(HX8357A_COLUMN_ADDRESS_COUNTER_1, _data16.lsb);
     54     _bus->writeC8D8(HX8357A_COLUMN_ADDRESS_START_2, _data16.msb);
     55     _bus->writeC8D8(HX8357A_COLUMN_ADDRESS_START_1, _data16.lsb);
     56     _data16.value = x + w - 1;
     57     _bus->writeC8D8(HX8357A_COLUMN_ADDRESS_END_2, _data16.msb);
     58     _bus->writeC8D8(HX8357A_COLUMN_ADDRESS_END_1, _data16.lsb);
     59   }
     60 
     61   if ((y != _currentY) || (h != _currentH))
     62   {
     63     _currentY = y;
     64     _currentH = h;
     65     y += _yStart;
     66     _data16.value = y;
     67     _bus->writeC8D8(HX8357A_ROW_ADDRESS_COUNTER_2, _data16.msb);
     68     _bus->writeC8D8(HX8357A_ROW_ADDRESS_COUNTER_1, _data16.lsb);
     69     _bus->writeC8D8(HX8357A_ROW_ADDRESS_START_2, _data16.msb);
     70     _bus->writeC8D8(HX8357A_ROW_ADDRESS_START_1, _data16.lsb);
     71     _data16.value = y + h - 1;
     72     _bus->writeC8D8(HX8357A_ROW_ADDRESS_END_2, _data16.msb);
     73     _bus->writeC8D8(HX8357A_ROW_ADDRESS_END_1, _data16.lsb);
     74   }
     75 
     76   _bus->writeCommand(HX8357A_SRAM_CONTROL);
     77 }
     78 
     79 void Arduino_HX8357A::invertDisplay(bool i)
     80 {
     81   _bus->beginWrite();
     82   _bus->writeC8D8(HX8357A_DISPLAY_MODE_CONTROL, (_ips ^ i) ? HX8357A_INV_ON : HX8357A_INV_OFF);
     83   _bus->endWrite();
     84 }
     85 
     86 void Arduino_HX8357A::displayOn(void)
     87 {
     88   _bus->beginWrite();
     89   _bus->writeC8D8(HX8357A_OSC_CONTROL_2, 0x01); // OSC_EN=1
     90   _bus->endWrite();
     91   delay(5);
     92   _bus->beginWrite();
     93   _bus->writeC8D8(HX8357A_POWER_CONTROL_1, 0x88);      // PON=0, DK=1
     94   _bus->writeC8D8(HX8357A_DISPLAY_MODE_CONTROL, 0x00); // DP_STB=00
     95   _bus->writeC8D8(HX8357A_POWER_CONTROL_4, 0x03);      // AP=011
     96   _bus->writeC8D8(HX8357A_POWER_CONTROL_1, 0x80);      // DK=0
     97   _bus->endWrite();
     98   delay(3);
     99   _bus->beginWrite();
    100   _bus->writeC8D8(HX8357A_POWER_CONTROL_1, 0x90); // PON=1
    101   _bus->endWrite();
    102   delay(3);
    103   _bus->beginWrite();
    104   _bus->writeC8D8(HX8357A_POWER_CONTROL_1, 0xD0);   // VCOMG=1
    105   _bus->writeC8D8(HX8357A_DISPLAY_CONTROL_3, 0x3C); // GON=1, DTE=1, D[1:0]=11
    106   _bus->endWrite();
    107 }
    108 
    109 void Arduino_HX8357A::displayOff(void)
    110 {
    111   _bus->beginWrite();
    112   _bus->writeC8D8(HX8357A_DISPLAY_CONTROL_3, 0x34); // GON=1, DTE=1, D[1:0]=01
    113   _bus->writeC8D8(HX8357A_POWER_CONTROL_1, 0x90);   // VCOMG=0
    114   _bus->endWrite();
    115   delay(1);
    116   _bus->beginWrite();
    117   _bus->writeC8D8(HX8357A_POWER_CONTROL_1, 0x88); // PON=0, DK=1
    118   _bus->writeC8D8(HX8357A_POWER_CONTROL_4, 0x00); // AP=000
    119   _bus->writeC8D8(HX8357A_POWER_CONTROL_1, 0x89); // STB=1
    120   _bus->endWrite();
    121 }
    122 
    123 // Companion code to the above tables.  Reads and issues
    124 // a series of LCD commands stored in PROGMEM byte array.
    125 void Arduino_HX8357A::tftInit()
    126 {
    127   if (_rst != GFX_NOT_DEFINED)
    128   {
    129     pinMode(_rst, OUTPUT);
    130     digitalWrite(_rst, HIGH);
    131     delay(100);
    132     digitalWrite(_rst, LOW);
    133     delay(HX8357A_RST_DELAY);
    134     digitalWrite(_rst, HIGH);
    135     delay(HX8357A_RST_DELAY);
    136   }
    137   else
    138   {
    139     // Software Rest
    140   }
    141 
    142   _bus->batchOperation(hx8357a_init_operations, sizeof(hx8357a_init_operations));
    143   if (_ips)
    144   {
    145     _bus->sendCommand(HX8357A_DISPLAY_MODE_CONTROL);
    146     _bus->sendData(HX8357A_INV_ON);
    147   }
    148 }