Michel2/ESPEasy
1
0 Fork 0
mirror of https://github.com/letscontrolit/ESPEasy.git synced 2026-10-26 22:10:45 +00:00
Code Issues Releases Activity
Files
6dfd71a4a05cbede14b2d467c69f0c843d9ccbfa
ESPEasy/lib/ILI9488-jaretburkett/ILI9488.cpp
T

899 lines
25 KiB
C++
Raw Blame History

/***************************************************
STM32 Support added by Jaret Burkett at OSHlab.com
This is our library for the Adafruit ILI9488 Breakout and Shield
----> http://www.adafruit.com/products/1651
Check out the links above for our tutorials and wiring diagrams
These displays use SPI to communicate, 4 or 5 pins are required to
interface (RST is optional)
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
MIT license, all text above must be included in any redistribution
****************************************************/
#include "ILI9488.h"
#ifdef __AVR
# include <avr/pgmspace.h>
#elif defined(ESP8266) || defined(ESP32)
# include <pgmspace.h>
#endif // ifdef __AVR
#ifndef ARDUINO_STM32_FEATHER
# include "pins_arduino.h"
# include "wiring_private.h"
#endif // ifndef ARDUINO_STM32_FEATHER
#include <limits.h>
#include <SPI.h>
// If the SPI library has transaction support, these functions
// establish settings and protect from interference from other
// libraries. Otherwise, they simply do nothing.
#ifdef SPI_HAS_TRANSACTION
static inline void spi_begin(void) __attribute__((always_inline));
static inline void spi_begin(void) {
# if defined(ARDUINO_ARCH_ARC32)
// max speed!
SPI.beginTransaction(SPISettings(16000000, MSBFIRST, SPI_MODE0));
# else // if defined(ARDUINO_ARCH_ARC32)
// max speed!
SPI.beginTransaction(SPISettings(24000000, MSBFIRST, SPI_MODE0));
# endif // if defined(ARDUINO_ARCH_ARC32)
}
static inline void spi_end(void) __attribute__((always_inline));
static inline void spi_end(void) {
SPI.endTransaction();
}
#else // ifdef SPI_HAS_TRANSACTION
# define spi_begin()
# define spi_end()
#endif // ifdef SPI_HAS_TRANSACTION
// Constructor when using software SPI. All output pins are configurable.
ILI9488::ILI9488(int8_t cs, int8_t dc, int8_t mosi,
int8_t sclk, int8_t rst, int8_t miso) : Adafruit_GFX(ILI9488_TFTWIDTH, ILI9488_TFTHEIGHT) {
_cs = cs;
_dc = dc;
_mosi = mosi;
_miso = miso;
_sclk = sclk;
_rst = rst;
hwSPI = false;
}
// Constructor when using hardware SPI. Faster, but must use SPI pins
// specific to each board type (e.g. 11,13 for Uno, 51,52 for Mega, etc.)
ILI9488::ILI9488(int8_t cs, int8_t dc, int8_t rst) : Adafruit_GFX(ILI9488_TFTWIDTH, ILI9488_TFTHEIGHT) {
_cs = cs;
_dc = dc;
_rst = rst;
hwSPI = true;
_mosi = _sclk = 0;
}
void ILI9488::spiwrite(uint8_t c) {
// Serial.print("0x"); Serial.print(c, HEX); Serial.print(", ");
if (hwSPI) {
#if defined(__AVR__)
# ifndef SPI_HAS_TRANSACTION
uint8_t backupSPCR = SPCR;
SPCR = mySPCR;
# endif // ifndef SPI_HAS_TRANSACTION
SPDR = c;
while (!(SPSR & _BV(SPIF))) {}
# ifndef SPI_HAS_TRANSACTION
SPCR = backupSPCR;
# endif // ifndef SPI_HAS_TRANSACTION
#else // if defined(__AVR__)
SPI.transfer(c);
#endif // if defined(__AVR__)
} else {
#if defined(ESP8266) || defined(ESP32) || defined(ARDUINO_ARCH_ARC32)
for (uint8_t bit = 0x80; bit; bit >>= 1) {
if (c & bit) {
digitalWrite(_mosi, HIGH);
} else {
digitalWrite(_mosi, LOW);
}
digitalWrite(_sclk, HIGH);
digitalWrite(_sclk, LOW);
}
#else // if defined(ESP8266) || defined(ESP32) || defined(ARDUINO_ARCH_ARC32)
// Fast SPI bitbang swiped from LPD8806 library
for (uint8_t bit = 0x80; bit; bit >>= 1) {
if (c & bit) {
// digitalWrite(_mosi, HIGH);
*mosiport |= mosipinmask;
} else {
// digitalWrite(_mosi, LOW);
*mosiport &= ~mosipinmask;
}
// digitalWrite(_sclk, HIGH);
*clkport |= clkpinmask;
// digitalWrite(_sclk, LOW);
*clkport &= ~clkpinmask;
}
#endif // if defined(ESP8266) || defined(ESP32) || defined(ARDUINO_ARCH_ARC32)
}
}
void ILI9488::writecommand(uint8_t c) {
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*dcport &= ~dcpinmask;
*csport &= ~cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_dc, LOW);
digitalWrite(_sclk, LOW);
digitalWrite(_cs, LOW);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
spiwrite(c);
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*csport |= cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_cs, HIGH);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
}
void ILI9488::writedata(uint8_t c) {
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*dcport |= dcpinmask;
*csport &= ~cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_dc, HIGH);
digitalWrite(_cs, LOW);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
spiwrite(c);
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*csport |= cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_cs, HIGH);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
}
// Rather than a bazillion writecommand() and writedata() calls, screen
// initialization commands and arguments are organized in these tables
// stored in PROGMEM. The table may look bulky, but that's mostly the
// formatting -- storage-wise this is hundreds of bytes more compact
// than the equivalent code. Companion function follows.
#define DELAY 0x80
// Companion code to the above tables. Reads and issues
// a series of LCD commands stored in PROGMEM byte array.
void ILI9488::commandList(uint8_t *addr) {
uint8_t numCommands, numArgs;
uint16_t ms;
numCommands = pgm_read_byte(addr++); // Number of commands to follow
while (numCommands--) { // For each command...
writecommand(pgm_read_byte(addr++)); // Read, issue command
numArgs = pgm_read_byte(addr++); // Number of args to follow
ms = numArgs & DELAY; // If hibit set, delay follows args
numArgs &= ~DELAY; // Mask out delay bit
while (numArgs--) { // For each argument...
writedata(pgm_read_byte(addr++)); // Read, issue argument
}
if (ms) {
ms = pgm_read_byte(addr++); // Read post-command delay time (ms)
if (ms == 255) { ms = 500; // If 255, delay for 500 ms
}
delay(ms);
}
}
}
void ILI9488::begin(void) {
if (_rst > 0) {
pinMode(_rst, OUTPUT);
digitalWrite(_rst, LOW);
}
pinMode(_dc, OUTPUT);
pinMode(_cs, OUTPUT);
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
csport = portOutputRegister(digitalPinToPort(_cs));
cspinmask = digitalPinToBitMask(_cs);
dcport = portOutputRegister(digitalPinToPort(_dc));
dcpinmask = digitalPinToBitMask(_dc);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
if (hwSPI) { // Using hardware SPI
SPI.begin();
#ifndef SPI_HAS_TRANSACTION
SPI.setBitOrder(MSBFIRST);
SPI.setDataMode(SPI_MODE0);
# if defined(_AVR__)
SPI.setClockDivider(SPI_CLOCK_DIV2); // 8 MHz (full! speed!)
mySPCR = SPCR;
# elif defined(TEENSYDUINO) || defined(__STM32F1__)
SPI.setClockDivider(SPI_CLOCK_DIV2); // 8 MHz (full! speed!)
# elif defined(__arm__)
SPI.setClockDivider(11); // 8-ish MHz (full! speed!)
# endif // if defined(_AVR__)
#endif // ifndef SPI_HAS_TRANSACTION
} else {
pinMode(_sclk, OUTPUT);
pinMode(_mosi, OUTPUT);
pinMode(_miso, INPUT);
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
clkport = portOutputRegister(digitalPinToPort(_sclk));
clkpinmask = digitalPinToBitMask(_sclk);
mosiport = portOutputRegister(digitalPinToPort(_mosi));
mosipinmask = digitalPinToBitMask(_mosi);
*clkport &= ~clkpinmask;
*mosiport &= ~mosipinmask;
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
}
// toggle RST low to reset
if (_rst > 0) {
digitalWrite(_rst, HIGH);
delay(5);
digitalWrite(_rst, LOW);
delay(20);
digitalWrite(_rst, HIGH);
delay(150);
}
/*
uint8_t x = readcommand8(ILI9488_RDMODE);
Serial.print("\nDisplay Power Mode: 0x"); Serial.println(x, HEX);
x = readcommand8(ILI9488_RDMADCTL);
Serial.print("\nMADCTL Mode: 0x"); Serial.println(x, HEX);
x = readcommand8(ILI9488_RDPIXFMT);
Serial.print("\nPixel Format: 0x"); Serial.println(x, HEX);
x = readcommand8(ILI9488_RDIMGFMT);
Serial.print("\nImage Format: 0x"); Serial.println(x, HEX);
x = readcommand8(ILI9488_RDSELFDIAG);
Serial.print("\nSelf Diagnostic: 0x"); Serial.println(x, HEX);
*/
// if(cmdList) commandList(cmdList);
if (hwSPI) { spi_begin(); }
writecommand(ILI9488_GMCTRP1);
writedata(0x00);
writedata(0x03);
writedata(0x09);
writedata(0x08);
writedata(0x16);
writedata(0x0A);
writedata(0x3F);
writedata(0x78);
writedata(0x4C);
writedata(0x09);
writedata(0x0A);
writedata(0x08);
writedata(0x16);
writedata(0x1A);
writedata(0x0F);
writecommand(ILI9488_GMCTRN1);
writedata(0x00);
writedata(0x16);
writedata(0x19);
writedata(0x03);
writedata(0x0F);
writedata(0x05);
writedata(0x32);
writedata(0x45);
writedata(0x46);
writedata(0x04);
writedata(0x0E);
writedata(0x0D);
writedata(0x35);
writedata(0x37);
writedata(0x0F);
writecommand(ILI9488_PWCTR1); // Power Control 1
writedata(0x17); // Vreg1out
writedata(0x15); // Verg2out
writecommand(ILI9488_PWCTR2); // Power Control 2
writedata(0x41); // VGH,VGL
writecommand(ILI9488_VMCTR1); // Power Control 3
writedata(0x00);
writedata(0x12); // Vcom
writedata(0x80);
writecommand(ILI9488_MADCTL); // Memory Access
writedata(0x48);
writecommand(ILI9488_PIXFMT); // Interface Pixel Format
writedata(0x66); // 18 bit
writecommand(0XB0); // Interface Mode Control
writedata(0x80); // SDO NOT USE
writecommand(ILI9488_FRMCTR1); // Frame rate
writedata(0xA0); // 60Hz
writecommand(ILI9488_INVCTR); // Display Inversion Control
writedata(0x02); // 2-dot
writecommand(ILI9488_DFUNCTR); // Display Function Control RGB/MCU Interface Control
writedata(0x02); // MCU
writedata(0x02); // Source,Gate scan dieection
writecommand(0XE9); // Set Image Functio
writedata(0x00); // Disable 24 bit data
writecommand(0xF7); // Adjust Control
writedata(0xA9);
writedata(0x51);
writedata(0x2C);
writedata(0x82); // D7 stream, loose
writecommand(ILI9488_SLPOUT); // Exit Sleep
if (hwSPI) { spi_end(); }
delay(120);
if (hwSPI) { spi_begin(); }
writecommand(ILI9488_DISPON); // Display on
if (hwSPI) { spi_end(); }
}
void ILI9488::setScrollArea(uint16_t topFixedArea, uint16_t bottomFixedArea) {
if (hwSPI) { spi_begin(); }
writecommand(0x33); // Vertical scroll definition
writedata(topFixedArea >> 8);
writedata(topFixedArea);
writedata((_height - topFixedArea - bottomFixedArea) >> 8);
writedata(_height - topFixedArea - bottomFixedArea);
writedata(bottomFixedArea >> 8);
writedata(bottomFixedArea);
if (hwSPI) { spi_end(); }
}
void ILI9488::scroll(uint16_t pixels) {
if (hwSPI) { spi_begin(); }
writecommand(0x37); // Vertical scrolling start address
writedata(pixels >> 8);
writedata(pixels);
if (hwSPI) { spi_end(); }
}
void ILI9488::setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1,
uint16_t y1) {
writecommand(ILI9488_CASET); // Column addr set
writedata(x0 >> 8);
writedata(x0 & 0xFF); // XSTART
writedata(x1 >> 8);
writedata(x1 & 0xFF); // XEND
writecommand(ILI9488_PASET); // Row addr set
writedata(y0 >> 8);
writedata(y0 & 0xff); // YSTART
writedata(y1 >> 8);
writedata(y1 & 0xff); // YEND
writecommand(ILI9488_RAMWR); // write to RAM
}
void ILI9488::drawImage(const uint8_t *img, uint16_t x, uint16_t y, uint16_t w, uint16_t h) {
// rudimentary clipping (drawChar w/big text requires this)
if ((x >= _width) || (y >= _height)) { return; }
if ((x + w - 1) >= _width) { w = _width - x; }
if ((y + h - 1) >= _height) { h = _height - y; }
if (hwSPI) { spi_begin(); }
setAddrWindow(x, y, x + w - 1, y + h - 1);
// uint8_t hi = color >> 8, lo = color;
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*dcport |= dcpinmask;
*csport &= ~cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_dc, HIGH);
digitalWrite(_cs, LOW);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
uint8_t linebuff[w * 3 + 1];
uint32_t count = 0;
for (uint16_t i = 0; i < h; i++) {
uint16_t pixcount = 0;
for (uint16_t o = 0; o < w; o++) {
uint8_t b1 = img[count];
count++;
uint8_t b2 = img[count];
count++;
uint16_t color = b1 << 8 | b2;
linebuff[pixcount] = (((color & 0xF800) >> 11) * 255) / 31;
pixcount++;
linebuff[pixcount] = (((color & 0x07E0) >> 5) * 255) / 63;
pixcount++;
linebuff[pixcount] = ((color & 0x001F) * 255) / 31;
pixcount++;
} // for row
#if defined(__STM32F1__)
SPI.dmaSend(linebuff, w * 3);
#else // if defined(__STM32F1__)
for (uint16_t b = 0; b < w * 3; b++) {
spiwrite(linebuff[b]);
}
#endif // if defined(__STM32F1__)
} // for col
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*csport |= cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_cs, HIGH);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
if (hwSPI) { spi_end(); }
}
void ILI9488::pushColor(uint16_t color) {
if (hwSPI) { spi_begin(); }
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*dcport |= dcpinmask;
*csport &= ~cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_dc, HIGH);
digitalWrite(_cs, LOW);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
// spiwrite(color >> 8);
// spiwrite(color);
// spiwrite(0); // added for 24 bit
write16BitColor(color);
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*csport |= cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_cs, HIGH);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
if (hwSPI) { spi_end(); }
}
void ILI9488::pushColors(uint16_t *data, uint8_t len, boolean first) {
uint16_t color;
uint8_t buff[len * 3 + 1];
uint16_t count = 0;
uint8_t lencount = len;
if (hwSPI) { spi_begin(); }
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*csport &= ~cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_cs, LOW);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
if (first == true) { // Issue GRAM write command only on first call
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*dcport |= dcpinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_dc, HIGH);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
}
while (lencount--) {
color = *data++;
buff[count] = (((color & 0xF800) >> 11) * 255) / 31;
count++;
buff[count] = (((color & 0x07E0) >> 5) * 255) / 63;
count++;
buff[count] = ((color & 0x001F) * 255) / 31;
count++;
}
#if defined(__STM32F1__)
SPI.dmaSend(buff, len * 3);
#else // if defined(__STM32F1__)
for (uint16_t b = 0; b < len * 3; b++) {
spiwrite(buff[b]);
}
#endif // if defined(__STM32F1__)
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*csport |= cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_cs, HIGH);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
if (hwSPI) { spi_end(); }
}
void ILI9488::write16BitColor(uint16_t color) {
// #if (__STM32F1__)
// uint8_t buff[4] = {
// (((color & 0xF800) >> 11)* 255) / 31,
// (((color & 0x07E0) >> 5) * 255) / 63,
// ((color & 0x001F)* 255) / 31
// };
// SPI.dmaSend(buff, 3);
// #else
uint8_t r = (color & 0xF800) >> 11;
uint8_t g = (color & 0x07E0) >> 5;
uint8_t b = color & 0x001F;
r = (r * 255) / 31;
g = (g * 255) / 63;
b = (b * 255) / 31;
spiwrite(r);
spiwrite(g);
spiwrite(b);
// #endif
}
void ILI9488::drawPixel(int16_t x, int16_t y, uint16_t color) {
if ((x < 0) || (x >= _width) || (y < 0) || (y >= _height)) { return; }
if (hwSPI) { spi_begin(); }
setAddrWindow(x, y, x + 1, y + 1);
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*dcport |= dcpinmask;
*csport &= ~cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_dc, HIGH);
digitalWrite(_cs, LOW);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
// spiwrite(color >> 8);
// spiwrite(color);
// spiwrite(0); // added for 24 bit
write16BitColor(color);
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*csport |= cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_cs, HIGH);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
if (hwSPI) { spi_end(); }
}
void ILI9488::drawFastVLine(int16_t x, int16_t y, int16_t h,
uint16_t color) {
// Rudimentary clipping
if ((x >= _width) || (y >= _height)) { return; }
if ((y + h - 1) >= _height) {
h = _height - y;
}
if (hwSPI) { spi_begin(); }
setAddrWindow(x, y, x, y + h - 1);
// uint8_t hi = color >> 8, lo = color;
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*dcport |= dcpinmask;
*csport &= ~cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_dc, HIGH);
digitalWrite(_cs, LOW);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
while (h--) {
// spiwrite(hi);
// spiwrite(lo);
// spiwrite(0); // added for 24 bit
write16BitColor(color);
}
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*csport |= cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_cs, HIGH);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
if (hwSPI) { spi_end(); }
}
void ILI9488::drawFastHLine(int16_t x, int16_t y, int16_t w,
uint16_t color) {
// Rudimentary clipping
if ((x >= _width) || (y >= _height)) { return; }
if ((x + w - 1) >= _width) { w = _width - x; }
if (hwSPI) { spi_begin(); }
setAddrWindow(x, y, x + w - 1, y);
// uint8_t hi = color >> 8, lo = color;
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*dcport |= dcpinmask;
*csport &= ~cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_dc, HIGH);
digitalWrite(_cs, LOW);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
while (w--) {
// spiwrite(hi);
// spiwrite(lo);
// spiwrite(0); // added for 24 bit
write16BitColor(color);
}
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*csport |= cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_cs, HIGH);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
if (hwSPI) { spi_end(); }
}
void ILI9488::fillScreen(uint16_t color) {
fillRect(0, 0, _width, _height, color);
}
// fill a rectangle
void ILI9488::fillRect(int16_t x, int16_t y, int16_t w, int16_t h,
uint16_t color) {
// rudimentary clipping (drawChar w/big text requires this)
if ((x >= _width) || (y >= _height)) { return; }
if ((x + w - 1) >= _width) { w = _width - x; }
if ((y + h - 1) >= _height) { h = _height - y; }
if (hwSPI) { spi_begin(); }
setAddrWindow(x, y, x + w - 1, y + h - 1);
// uint8_t hi = color >> 8, lo = color;
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*dcport |= dcpinmask;
*csport &= ~cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_dc, HIGH);
digitalWrite(_cs, LOW);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
#if (__STM32F1__)
// use dma fast fills
uint8_t buff[4] = {
(((color & 0xF800) >> 11) * 255) / 31,
(((color & 0x07E0) >> 5) * 255) / 63,
((color & 0x001F) * 255) / 31
};
uint8_t linebuff[w * 3 + 1];
int cnt = 0;
for (int i = 0; i < w; i++) {
linebuff[cnt] = buff[0];
cnt++;
linebuff[cnt] = buff[1];
cnt++;
linebuff[cnt] = buff[2];
cnt++;
}
for (y = h; y > 0; y--) {
SPI.dmaSend(linebuff, w * 3);
}
#else // if (__STM32F1__)
for (y = h; y > 0; y--) {
for (x = w; x > 0; x--) {
// spiwrite(hi);
// spiwrite(lo);
// spiwrite(0); // added for 24 bit
write16BitColor(color);
}
}
#endif // if (__STM32F1__)
#if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
*csport |= cspinmask;
#else // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
digitalWrite(_cs, HIGH);
#endif // if defined(USE_FAST_PINIO) && !defined(_VARIANT_ARDUINO_STM32_)
if (hwSPI) { spi_end(); }
}
// Pass 8-bit (each) R,G,B, get back 16-bit packed color
uint16_t ILI9488::color565(uint8_t r, uint8_t g, uint8_t b) {
return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3);
}
#define MADCTL_MY 0x80
#define MADCTL_MX 0x40
#define MADCTL_MV 0x20
#define MADCTL_ML 0x10
#define MADCTL_RGB 0x00
#define MADCTL_BGR 0x08
#define MADCTL_MH 0x04
void ILI9488::setRotation(uint8_t m) {
if (hwSPI) { spi_begin(); }
writecommand(ILI9488_MADCTL);
rotation = m % 4; // can't be higher than 3
switch (rotation) {
case 0:
writedata(MADCTL_MX | MADCTL_BGR);
_width = ILI9488_TFTWIDTH;
_height = ILI9488_TFTHEIGHT;
break;
case 1:
writedata(MADCTL_MV | MADCTL_BGR);
_width = ILI9488_TFTHEIGHT;
_height = ILI9488_TFTWIDTH;
break;
case 2:
writedata(MADCTL_MY | MADCTL_BGR);
_width = ILI9488_TFTWIDTH;
_height = ILI9488_TFTHEIGHT;
break;
case 3:
writedata(MADCTL_MX | MADCTL_MY | MADCTL_MV | MADCTL_BGR);
_width = ILI9488_TFTHEIGHT;
_height = ILI9488_TFTWIDTH;
break;
}
if (hwSPI) { spi_end(); }
}
void ILI9488::invertDisplay(boolean i) {
if (hwSPI) { spi_begin(); }
writecommand(i ? ILI9488_INVON : ILI9488_INVOFF);
if (hwSPI) { spi_end(); }
}
////////// stuff not actively being used, but kept for posterity
uint8_t ILI9488::spiread(void) {
uint8_t r = 0;
if (hwSPI) {
#if defined(__AVR__)
# ifndef SPI_HAS_TRANSACTION
uint8_t backupSPCR = SPCR;
SPCR = mySPCR;
# endif // ifndef SPI_HAS_TRANSACTION
SPDR = 0x00;
while (!(SPSR & _BV(SPIF))) {}
r = SPDR;
# ifndef SPI_HAS_TRANSACTION
SPCR = backupSPCR;
# endif // ifndef SPI_HAS_TRANSACTION
#else // if defined(__AVR__)
r = SPI.transfer(0x00);
#endif // if defined(__AVR__)
} else {
for (uint8_t i = 0; i < 8; i++) {
digitalWrite(_sclk, LOW);
digitalWrite(_sclk, HIGH);
r <<= 1;
if (digitalRead(_miso)) {
r |= 0x1;
}
}
}
// Serial.print("read: 0x"); Serial.print(r, HEX);
return r;
}
uint8_t ILI9488::readdata(void) {
digitalWrite(_dc, HIGH);
digitalWrite(_cs, LOW);
uint8_t r = spiread();
digitalWrite(_cs, HIGH);
return r;
}
uint8_t ILI9488::readcommand8(uint8_t c, uint8_t index) {
if (hwSPI) { spi_begin(); }
digitalWrite(_dc, LOW); // command
digitalWrite(_cs, LOW);
spiwrite(0xD9); // woo sekret command?
digitalWrite(_dc, HIGH); // data
spiwrite(0x10 + index);
digitalWrite(_cs, HIGH);
digitalWrite(_dc, LOW);
digitalWrite(_sclk, LOW);
digitalWrite(_cs, LOW);
spiwrite(c);
digitalWrite(_dc, HIGH);
uint8_t r = spiread();
digitalWrite(_cs, HIGH);
if (hwSPI) { spi_end(); }
return r;
}
/*
uint16_t ILI9488::readcommand16(uint8_t c) {
digitalWrite(_dc, LOW);
if (_cs)
digitalWrite(_cs, LOW);
spiwrite(c);
pinMode(_sid, INPUT); // input!
uint16_t r = spiread();
r <<= 8;
r |= spiread();
if (_cs)
digitalWrite(_cs, HIGH);
pinMode(_sid, OUTPUT); // back to output
return r;
}
uint32_t ILI9488::readcommand32(uint8_t c) {
digitalWrite(_dc, LOW);
if (_cs)
digitalWrite(_cs, LOW);
spiwrite(c);
pinMode(_sid, INPUT); // input!
dummyclock();
dummyclock();
uint32_t r = spiread();
r <<= 8;
r |= spiread();
r <<= 8;
r |= spiread();
r <<= 8;
r |= spiread();
if (_cs)
digitalWrite(_cs, HIGH);
pinMode(_sid, OUTPUT); // back to output
return r;
}
*/
View Git Blame Copy Permalink