d64a1d95da
- added plaformio libraries - improvements and fix errors. Please enter the commit message for your changes. Lines starting
264 lines
10 KiB
C
264 lines
10 KiB
C
////////////////////////////////////////////////////
|
|
// TFT_eSPI generic driver functions //
|
|
////////////////////////////////////////////////////
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// Global variables
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
// Select the SPI port to use
|
|
#ifdef TFT_SPI_PORT
|
|
SPIClass& spi = TFT_SPI_PORT;
|
|
#else
|
|
SPIClass& spi = SPI;
|
|
#endif
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#if defined (TFT_SDA_READ) && !defined (TFT_PARALLEL_8_BIT)
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
/***************************************************************************************
|
|
** Function name: tft_Read_8
|
|
** Description: Bit bashed SPI to read bidirectional SDA line
|
|
***************************************************************************************/
|
|
uint8_t TFT_eSPI::tft_Read_8(void)
|
|
{
|
|
uint8_t ret = 0;
|
|
|
|
for (uint8_t i = 0; i < 8; i++) { // read results
|
|
ret <<= 1;
|
|
SCLK_L;
|
|
if (digitalRead(TFT_MOSI)) ret |= 1;
|
|
SCLK_H;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: beginSDA
|
|
** Description: Detach SPI from pin to permit software SPI
|
|
***************************************************************************************/
|
|
void TFT_eSPI::begin_SDA_Read(void)
|
|
{
|
|
// Release configured SPI port for SDA read
|
|
spi.end();
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: endSDA
|
|
** Description: Attach SPI pins after software SPI
|
|
***************************************************************************************/
|
|
void TFT_eSPI::end_SDA_Read(void)
|
|
{
|
|
// Configure SPI port ready for next TFT access
|
|
spi.begin();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#endif // #if defined (TFT_SDA_READ)
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#if defined (TFT_PARALLEL_8_BIT) // Code for generic (i.e. any) processor
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushBlock - for generic processor and parallel display
|
|
** Description: Write a block of pixels of the same colour
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushBlock(uint16_t color, uint32_t len){
|
|
|
|
while (len>1) {tft_Write_32D(color); len-=2;}
|
|
if (len) {tft_Write_16(color);}
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushPixels - for gereric processor and parallel display
|
|
** Description: Write a sequence of pixels
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushPixels(const void* data_in, uint32_t len){
|
|
|
|
uint16_t *data = (uint16_t*)data_in;
|
|
if(_swapBytes) {
|
|
while (len>1) {tft_Write_16(*data); data++; tft_Write_16(*data); data++; len -=2;}
|
|
if (len) {tft_Write_16(*data);}
|
|
return;
|
|
}
|
|
|
|
while (len>1) {tft_Write_16S(*data); data++; tft_Write_16S(*data); data++; len -=2;}
|
|
if (len) {tft_Write_16S(*data);}
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: GPIO direction control - supports class functions
|
|
** Description: Set parallel bus to INPUT or OUTPUT
|
|
***************************************************************************************/
|
|
void TFT_eSPI::busDir(uint32_t mask, uint8_t mode)
|
|
{
|
|
// mask is unused for generic processor
|
|
// Arduino native functions suited well to a generic driver
|
|
pinMode(TFT_D0, mode);
|
|
pinMode(TFT_D1, mode);
|
|
pinMode(TFT_D2, mode);
|
|
pinMode(TFT_D3, mode);
|
|
pinMode(TFT_D4, mode);
|
|
pinMode(TFT_D5, mode);
|
|
pinMode(TFT_D6, mode);
|
|
pinMode(TFT_D7, mode);
|
|
return;
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: GPIO direction control - supports class functions
|
|
** Description: Faster GPIO pin input/output switch
|
|
***************************************************************************************/
|
|
void TFT_eSPI::gpioMode(uint8_t gpio, uint8_t mode)
|
|
{
|
|
// No fast port based generic approach available
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: read byte - supports class functions
|
|
** Description: Read a byte - parallel bus only
|
|
***************************************************************************************/
|
|
uint8_t TFT_eSPI::readByte(void)
|
|
{
|
|
uint8_t b = 0;
|
|
|
|
busDir(0, INPUT);
|
|
digitalWrite(TFT_RD, LOW);
|
|
|
|
b |= digitalRead(TFT_D0) << 0;
|
|
b |= digitalRead(TFT_D1) << 1;
|
|
b |= digitalRead(TFT_D2) << 2;
|
|
b |= digitalRead(TFT_D3) << 3;
|
|
b |= digitalRead(TFT_D4) << 4;
|
|
b |= digitalRead(TFT_D5) << 5;
|
|
b |= digitalRead(TFT_D6) << 6;
|
|
b |= digitalRead(TFT_D7) << 7;
|
|
|
|
digitalWrite(TFT_RD, HIGH);
|
|
busDir(0, OUTPUT);
|
|
|
|
return b;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#elif defined (RPI_WRITE_STROBE) // For RPi TFT with write strobe
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushBlock - for ESP32 or STM32 RPi TFT
|
|
** Description: Write a block of pixels of the same colour
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushBlock(uint16_t color, uint32_t len){
|
|
|
|
if(len) { tft_Write_16(color); len--; }
|
|
while(len--) {WR_L; WR_H;}
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushPixels - for ESP32 or STM32 RPi TFT
|
|
** Description: Write a sequence of pixels
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushPixels(const void* data_in, uint32_t len)
|
|
{
|
|
uint16_t *data = (uint16_t*)data_in;
|
|
|
|
if (_swapBytes) while ( len-- ) {tft_Write_16S(*data); data++;}
|
|
else while ( len-- ) {tft_Write_16(*data); data++;}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#elif defined (SPI_18BIT_DRIVER) // SPI 18 bit colour
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushBlock - for STM32 and 3 byte RGB display
|
|
** Description: Write a block of pixels of the same colour
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushBlock(uint16_t color, uint32_t len)
|
|
{
|
|
// Split out the colours
|
|
uint8_t r = (color & 0xF800)>>8;
|
|
uint8_t g = (color & 0x07E0)>>3;
|
|
uint8_t b = (color & 0x001F)<<3;
|
|
|
|
while ( len-- ) {tft_Write_8(r); tft_Write_8(g); tft_Write_8(b);}
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushPixels - for STM32 and 3 byte RGB display
|
|
** Description: Write a sequence of pixels
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushPixels(const void* data_in, uint32_t len){
|
|
|
|
uint16_t *data = (uint16_t*)data_in;
|
|
if (_swapBytes) {
|
|
while ( len-- ) {
|
|
uint16_t color = *data >> 8 | *data << 8;
|
|
tft_Write_8((color & 0xF800)>>8);
|
|
tft_Write_8((color & 0x07E0)>>3);
|
|
tft_Write_8((color & 0x001F)<<3);
|
|
data++;
|
|
}
|
|
}
|
|
else {
|
|
while ( len-- ) {
|
|
tft_Write_8((*data & 0xF800)>>8);
|
|
tft_Write_8((*data & 0x07E0)>>3);
|
|
tft_Write_8((*data & 0x001F)<<3);
|
|
data++;
|
|
}
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#else // Standard SPI 16 bit colour TFT
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushBlock - for STM32
|
|
** Description: Write a block of pixels of the same colour
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushBlock(uint16_t color, uint32_t len){
|
|
|
|
while ( len-- ) {tft_Write_16(color);}
|
|
}
|
|
|
|
/***************************************************************************************
|
|
** Function name: pushPixels - for STM32
|
|
** Description: Write a sequence of pixels
|
|
***************************************************************************************/
|
|
void TFT_eSPI::pushPixels(const void* data_in, uint32_t len){
|
|
|
|
uint16_t *data = (uint16_t*)data_in;
|
|
|
|
if (_swapBytes) while ( len-- ) {tft_Write_16(*data); data++;}
|
|
else while ( len-- ) {tft_Write_16S(*data); data++;}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
#endif // End of display interface specific functions
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
// DMA FUNCTIONS
|
|
////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
// Placeholder for DMA functions
|
|
|
|
/*
|
|
Minimal function set to support DMA:
|
|
|
|
bool TFT_eSPI::initDMA(void)
|
|
void TFT_eSPI::deInitDMA(void)
|
|
bool TFT_eSPI::dmaBusy(void)
|
|
void TFT_eSPI::pushPixelsDMA(uint16_t* image, uint32_t len)
|
|
void TFT_eSPI::pushImageDMA(int32_t x, int32_t y, int32_t w, int32_t h, uint16_t* image)
|
|
|
|
*/
|