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Arduino_SSD1351.cpp
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Arduino_SSD1351.cpp
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/*
* start rewrite from:
* https://github.com/adafruit/Adafruit-GFX-Library.git
* https://github.com/adafruit/Adafruit-SSD1351-library.git
*/
#include "Arduino_SSD1351.h"
#include "SPI.h"
Arduino_SSD1351::Arduino_SSD1351(
Arduino_DataBus *bus, int8_t rst, uint8_t r, int16_t w, int16_t h,
uint8_t col_offset1, uint8_t row_offset1, uint8_t col_offset2, uint8_t row_offset2)
: Arduino_TFT(bus, rst, r, false, w, h, col_offset1, row_offset1, col_offset2, row_offset2)
{
}
void Arduino_SSD1351::begin(int speed)
{
#if defined(ESP8266) || defined(ESP32)
if (speed == 0)
{
speed = 16000000;
}
#endif
_override_datamode = 0; // SPI_MODE0
Arduino_TFT::begin(speed);
}
// Companion code to the above tables. Reads and issues
// a series of LCD commands stored in PROGMEM byte array.
void Arduino_SSD1351::tftInit()
{
_bus->sendCommand(SSD1351_COMMANDLOCK); // set command lock
_bus->sendData(0x12);
_bus->sendCommand(SSD1351_COMMANDLOCK); // set command lock
_bus->sendData(0xB1);
_bus->sendCommand(SSD1351_DISPLAYOFF); // Display off
_bus->sendCommand(SSD1351_DISPLAYOFFSET); // 0xA2
_bus->sendData(0x0);
_bus->sendCommand(SSD1351_NORMALDISPLAY); // 0xA6
_bus->sendCommand(SSD1351_DISPLAYON); // Main screen turn on
}
void Arduino_SSD1351::writeAddrWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
{
uint8_t cmd;
if ((x != _currentX) || (w != _currentW))
{
cmd = (_rotation & 0x01) ? SSD1351_SETROW : SSD1351_SETCOLUMN;
uint8_t x_start = x + _xStart, x_end = x + w - 1 + _xStart;
_bus->writeCommand(cmd); // Column addr set
_bus->write(x_start); // XSTART
_bus->write(x_end); // XEND
_currentX = x;
_currentW = w;
}
if ((y != _currentY) || (h != _currentH))
{
cmd = (_rotation & 0x01) ? SSD1351_SETCOLUMN : SSD1351_SETROW;
uint8_t y_start = y + _yStart, y_end = y + h - 1 + _yStart;
_bus->writeCommand(cmd); // Row addr set
_bus->write(y_start); // YSTART
_bus->write(y_end); // YEND
_currentY = y;
_currentH = h;
}
_bus->writeCommand(SSD1351_WRITERAM); // write to RAM
}
/**************************************************************************/
/*!
@brief Set origin of (0,0) and orientation of TFT display
@param m The index for rotation, from 0-3 inclusive
*/
/**************************************************************************/
void Arduino_SSD1351::setRotation(uint8_t r)
{
Arduino_TFT::setRotation(r);
uint8_t startline = (_rotation < 2) ? HEIGHT : 0;
switch (_rotation)
{
case 0:
r = 0b01110100;
break;
case 1:
r = 0b01110111;
break;
case 2:
r = 0b01100110;
break;
case 3:
r = 0b01100101;
break;
}
_bus->beginWrite();
_bus->writeCommand(SSD1351_SETREMAP);
_bus->write(r);
_bus->writeCommand(SSD1351_STARTLINE);
_bus->write(startline);
_bus->endWrite();
}
void Arduino_SSD1351::invertDisplay(bool i)
{
_bus->sendCommand(i ? SSD1351_INVERTDISPLAY : SSD1351_NORMALDISPLAY);
}
void Arduino_SSD1351::displayOn(void)
{
_bus->sendCommand(SSD1351_DISPLAYALLON);
}
void Arduino_SSD1351::displayOff(void)
{
_bus->sendCommand(SSD1351_DISPLAYALLOFF);
}