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SyncHome/trunk/Arduino/libraries/Adafruit_ILI9340/Adafruit_ILI9340.cpp

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daily_automated
2023-03-17 11:59:21 +00:00
/***************************************************
This is an Arduino Library for the Adafruit 2.2" SPI display.
This library works with the Adafruit 2.2" TFT Breakout w/SD card
----> http://www.adafruit.com/products/1480
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 "Adafruit_ILI9340.h"
#include <avr/pgmspace.h>
#include <limits.h>
#include "pins_arduino.h"
#include "wiring_private.h"
#include <SPI.h>
#if defined(__SAM3X8E__)
#include <include/pio.h>
#define SET_BIT(port, bitMask) (port)->PIO_SODR |= (bitMask)
#define CLEAR_BIT(port, bitMask) (port)->PIO_CODR |= (bitMask)
#define USE_SPI_LIBRARY
#endif
#ifdef __AVR__
#define SET_BIT(port, bitMask) *(port) |= (bitMask)
#define CLEAR_BIT(port, bitMask) *(port) &= ~(bitMask)
#endif
#if defined(__arm__) && defined(CORE_TEENSY)
#define USE_SPI_LIBRARY
#define SET_BIT(port, bitMask) digitalWrite(*(port), HIGH);
#define CLEAR_BIT(port, bitMask) digitalWrite(*(port), LOW);
#endif
// Constructor when using software SPI. All output pins are configurable.
Adafruit_ILI9340::Adafruit_ILI9340(uint8_t cs, uint8_t dc, uint8_t mosi,
uint8_t sclk, uint8_t rst, uint8_t miso) : Adafruit_GFX(ILI9340_TFTWIDTH, ILI9340_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.)
Adafruit_ILI9340::Adafruit_ILI9340(uint8_t cs, uint8_t dc, uint8_t rst) : Adafruit_GFX(ILI9340_TFTWIDTH, ILI9340_TFTHEIGHT) {
_cs = cs;
_dc = dc;
_rst = rst;
hwSPI = true;
_mosi = _sclk = 0;
}
void Adafruit_ILI9340::spiwrite(uint8_t c) {
//Serial.print("0x"); Serial.print(c, HEX); Serial.print(", ");
if (hwSPI) {
#ifdef __AVR__
SPDR = c;
while(!(SPSR & _BV(SPIF)));
#endif
#if defined(USE_SPI_LIBRARY)
SPI.transfer(c);
#endif
} else {
// Fast SPI bitbang swiped from LPD8806 library
for(uint8_t bit = 0x80; bit; bit >>= 1) {
if(c & bit) {
//digitalWrite(_mosi, HIGH);
SET_BIT(mosiport, mosipinmask);
} else {
//digitalWrite(_mosi, LOW);
CLEAR_BIT(mosiport, mosipinmask);
}
//digitalWrite(_sclk, HIGH);
SET_BIT(clkport, clkpinmask);
//digitalWrite(_sclk, LOW);
CLEAR_BIT(clkport, clkpinmask);
}
}
}
void Adafruit_ILI9340::writecommand(uint8_t c) {
CLEAR_BIT(dcport, dcpinmask);
//digitalWrite(_dc, LOW);
CLEAR_BIT(clkport, clkpinmask);
//digitalWrite(_sclk, LOW);
CLEAR_BIT(csport, cspinmask);
//digitalWrite(_cs, LOW);
spiwrite(c);
SET_BIT(csport, cspinmask);
//digitalWrite(_cs, HIGH);
}
void Adafruit_ILI9340::writedata(uint8_t c) {
SET_BIT(dcport, dcpinmask);
//digitalWrite(_dc, HIGH);
CLEAR_BIT(clkport, clkpinmask);
//digitalWrite(_sclk, LOW);
CLEAR_BIT(csport, cspinmask);
//digitalWrite(_cs, LOW);
spiwrite(c);
//digitalWrite(_cs, HIGH);
SET_BIT(csport, cspinmask);
}
// 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 Adafruit_ILI9340::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 Adafruit_ILI9340::begin(void) {
pinMode(_rst, OUTPUT);
digitalWrite(_rst, LOW);
pinMode(_dc, OUTPUT);
pinMode(_cs, OUTPUT);
#ifdef __AVR__
csport = portOutputRegister(digitalPinToPort(_cs));
dcport = portOutputRegister(digitalPinToPort(_dc));
#endif
#if defined(__SAM3X8E__)
csport = digitalPinToPort(_cs);
dcport = digitalPinToPort(_dc);
#endif
#if defined(__arm__) && defined(CORE_TEENSY)
mosiport = &_mosi;
clkport = &_sclk;
rsport = &_rst;
csport = &_cs;
dcport = &_dc;
#endif
cspinmask = digitalPinToBitMask(_cs);
dcpinmask = digitalPinToBitMask(_dc);
if(hwSPI) { // Using hardware SPI
SPI.begin();
#ifdef __AVR__
SPI.setClockDivider(SPI_CLOCK_DIV2); // 8 MHz (full! speed!)
#endif
#if defined(__SAM3X8E__)
SPI.setClockDivider(11); // 85MHz / 11 = 7.6 MHz (full! speed!)
#endif SPI.setBitOrder(MSBFIRST);
SPI.setBitOrder(MSBFIRST);
SPI.setDataMode(SPI_MODE0);
} else {
pinMode(_sclk, OUTPUT);
pinMode(_mosi, OUTPUT);
pinMode(_miso, INPUT);
#ifdef __AVR__
clkport = portOutputRegister(digitalPinToPort(_sclk));
mosiport = portOutputRegister(digitalPinToPort(_mosi));
#endif
#if defined(__SAM3X8E__)
clkport = digitalPinToPort(_sclk);
mosiport = digitalPinToPort(_mosi);
#endif
clkpinmask = digitalPinToBitMask(_sclk);
mosipinmask = digitalPinToBitMask(_mosi);
CLEAR_BIT(clkport, clkpinmask);
CLEAR_BIT(mosiport, mosipinmask);
}
// toggle RST low to reset
digitalWrite(_rst, HIGH);
delay(5);
digitalWrite(_rst, LOW);
delay(20);
digitalWrite(_rst, HIGH);
delay(150);
/*
uint8_t x = readcommand8(ILI9340_RDMODE);
Serial.print("\nDisplay Power Mode: 0x"); Serial.println(x, HEX);
x = readcommand8(ILI9340_RDMADCTL);
Serial.print("\nMADCTL Mode: 0x"); Serial.println(x, HEX);
x = readcommand8(ILI9340_RDPIXFMT);
Serial.print("\nPixel Format: 0x"); Serial.println(x, HEX);
x = readcommand8(ILI9340_RDIMGFMT);
Serial.print("\nImage Format: 0x"); Serial.println(x, HEX);
x = readcommand8(ILI9340_RDSELFDIAG);
Serial.print("\nSelf Diagnostic: 0x"); Serial.println(x, HEX);
*/
//if(cmdList) commandList(cmdList);
writecommand(0xEF);
writedata(0x03);
writedata(0x80);
writedata(0x02);
writecommand(0xCF);
writedata(0x00);
writedata(0XC1);
writedata(0X30);
writecommand(0xED);
writedata(0x64);
writedata(0x03);
writedata(0X12);
writedata(0X81);
writecommand(0xE8);
writedata(0x85);
writedata(0x00);
writedata(0x78);
writecommand(0xCB);
writedata(0x39);
writedata(0x2C);
writedata(0x00);
writedata(0x34);
writedata(0x02);
writecommand(0xF7);
writedata(0x20);
writecommand(0xEA);
writedata(0x00);
writedata(0x00);
writecommand(ILI9340_PWCTR1); //Power control
writedata(0x23); //VRH[5:0]
writecommand(ILI9340_PWCTR2); //Power control
writedata(0x10); //SAP[2:0];BT[3:0]
writecommand(ILI9340_VMCTR1); //VCM control
writedata(0x3e); //<2F>Աȶȵ<C8B6><C8B5><EFBFBD>
writedata(0x28);
writecommand(ILI9340_VMCTR2); //VCM control2
writedata(0x86); //--
writecommand(ILI9340_MADCTL); // Memory Access Control
writedata(ILI9340_MADCTL_MX | ILI9340_MADCTL_BGR);
writecommand(ILI9340_PIXFMT);
writedata(0x55);
writecommand(ILI9340_FRMCTR1);
writedata(0x00);
writedata(0x18);
writecommand(ILI9340_DFUNCTR); // Display Function Control
writedata(0x08);
writedata(0x82);
writedata(0x27);
writecommand(0xF2); // 3Gamma Function Disable
writedata(0x00);
writecommand(ILI9340_GAMMASET); //Gamma curve selected
writedata(0x01);
writecommand(ILI9340_GMCTRP1); //Set Gamma
writedata(0x0F);
writedata(0x31);
writedata(0x2B);
writedata(0x0C);
writedata(0x0E);
writedata(0x08);
writedata(0x4E);
writedata(0xF1);
writedata(0x37);
writedata(0x07);
writedata(0x10);
writedata(0x03);
writedata(0x0E);
writedata(0x09);
writedata(0x00);
writecommand(ILI9340_GMCTRN1); //Set Gamma
writedata(0x00);
writedata(0x0E);
writedata(0x14);
writedata(0x03);
writedata(0x11);
writedata(0x07);
writedata(0x31);
writedata(0xC1);
writedata(0x48);
writedata(0x08);
writedata(0x0F);
writedata(0x0C);
writedata(0x31);
writedata(0x36);
writedata(0x0F);
writecommand(ILI9340_SLPOUT); //Exit Sleep
delay(120);
writecommand(ILI9340_DISPON); //Display on
}
void Adafruit_ILI9340::setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1,
uint16_t y1) {
writecommand(ILI9340_CASET); // Column addr set
writedata(x0 >> 8);
writedata(x0 & 0xFF); // XSTART
writedata(x1 >> 8);
writedata(x1 & 0xFF); // XEND
writecommand(ILI9340_PASET); // Row addr set
writedata(y0>>8);
writedata(y0); // YSTART
writedata(y1>>8);
writedata(y1); // YEND
writecommand(ILI9340_RAMWR); // write to RAM
}
void Adafruit_ILI9340::pushColor(uint16_t color) {
//digitalWrite(_dc, HIGH);
SET_BIT(dcport, dcpinmask);
//digitalWrite(_cs, LOW);
CLEAR_BIT(csport, cspinmask);
spiwrite(color >> 8);
spiwrite(color);
SET_BIT(csport, cspinmask);
//digitalWrite(_cs, HIGH);
}
void Adafruit_ILI9340::drawPixel(int16_t x, int16_t y, uint16_t color) {
if((x < 0) ||(x >= _width) || (y < 0) || (y >= _height)) return;
setAddrWindow(x,y,x+1,y+1);
//digitalWrite(_dc, HIGH);
SET_BIT(dcport, dcpinmask);
//digitalWrite(_cs, LOW);
CLEAR_BIT(csport, cspinmask);
spiwrite(color >> 8);
spiwrite(color);
SET_BIT(csport, cspinmask);
//digitalWrite(_cs, HIGH);
}
void Adafruit_ILI9340::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;
setAddrWindow(x, y, x, y+h-1);
uint8_t hi = color >> 8, lo = color;
SET_BIT(dcport, dcpinmask);
//digitalWrite(_dc, HIGH);
CLEAR_BIT(csport, cspinmask);
//digitalWrite(_cs, LOW);
while (h--) {
spiwrite(hi);
spiwrite(lo);
}
SET_BIT(csport, cspinmask);
//digitalWrite(_cs, HIGH);
}
void Adafruit_ILI9340::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;
setAddrWindow(x, y, x+w-1, y);
uint8_t hi = color >> 8, lo = color;
SET_BIT(dcport, dcpinmask);
CLEAR_BIT(csport, cspinmask);
//digitalWrite(_dc, HIGH);
//digitalWrite(_cs, LOW);
while (w--) {
spiwrite(hi);
spiwrite(lo);
}
SET_BIT(csport, cspinmask);
//digitalWrite(_cs, HIGH);
}
void Adafruit_ILI9340::fillScreen(uint16_t color) {
fillRect(0, 0, _width, _height, color);
}
// fill a rectangle
void Adafruit_ILI9340::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;
setAddrWindow(x, y, x+w-1, y+h-1);
uint8_t hi = color >> 8, lo = color;
SET_BIT(dcport, dcpinmask);
//digitalWrite(_dc, HIGH);
CLEAR_BIT(csport, cspinmask);
//digitalWrite(_cs, LOW);
for(y=h; y>0; y--) {
for(x=w; x>0; x--) {
spiwrite(hi);
spiwrite(lo);
}
}
//digitalWrite(_cs, HIGH);
SET_BIT(csport, cspinmask);
}
// Pass 8-bit (each) R,G,B, get back 16-bit packed color
uint16_t Adafruit_ILI9340::Color565(uint8_t r, uint8_t g, uint8_t b) {
return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3);
}
void Adafruit_ILI9340::setRotation(uint8_t m) {
writecommand(ILI9340_MADCTL);
rotation = m % 4; // can't be higher than 3
switch (rotation) {
case 0:
writedata(ILI9340_MADCTL_MX | ILI9340_MADCTL_BGR);
_width = ILI9340_TFTWIDTH;
_height = ILI9340_TFTHEIGHT;
break;
case 1:
writedata(ILI9340_MADCTL_MV | ILI9340_MADCTL_BGR);
_width = ILI9340_TFTHEIGHT;
_height = ILI9340_TFTWIDTH;
break;
case 2:
writedata(ILI9340_MADCTL_MY | ILI9340_MADCTL_BGR);
_width = ILI9340_TFTWIDTH;
_height = ILI9340_TFTHEIGHT;
break;
case 3:
writedata(ILI9340_MADCTL_MV | ILI9340_MADCTL_MY | ILI9340_MADCTL_MX | ILI9340_MADCTL_BGR);
_width = ILI9340_TFTHEIGHT;
_height = ILI9340_TFTWIDTH;
break;
}
}
void Adafruit_ILI9340::invertDisplay(boolean i) {
writecommand(i ? ILI9340_INVON : ILI9340_INVOFF);
}
////////// stuff not actively being used, but kept for posterity
uint8_t Adafruit_ILI9340::spiread(void) {
uint8_t r = 0;
if (hwSPI) {
#ifdef __AVR__
SPDR = 0x00;
while(!(SPSR & _BV(SPIF)));
r = SPDR;
#endif
#if defined(USE_SPI_LIBRARY)
r = SPI.transfer(0x00);
#endif
} 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 Adafruit_ILI9340::readdata(void) {
digitalWrite(_dc, HIGH);
digitalWrite(_cs, LOW);
uint8_t r = spiread();
digitalWrite(_cs, HIGH);
return r;
}
uint8_t Adafruit_ILI9340::readcommand8(uint8_t c) {
digitalWrite(_dc, LOW);
digitalWrite(_sclk, LOW);
digitalWrite(_cs, LOW);
spiwrite(c);
digitalWrite(_dc, HIGH);
uint8_t r = spiread();
digitalWrite(_cs, HIGH);
return r;
}
/*
uint16_t Adafruit_ILI9340::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 Adafruit_ILI9340::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;
}
*/
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