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esp8266/libraries/Adafruit_ILI9341/Adafruit_ILI9341.cpp
Markus Sattler 2aab78ade9 fix ILI9341 (define for SPI speed was deleted?)
2015-06-03 15:40:11 +02:00

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/***************************************************
This is our library for the Adafruit ILI9341 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
Modified 09 May 2015 by Markus Sattler - rewrite the code add ESP8266 support and many optimizations now 220% fastet (320% total)
****************************************************/
#include "Adafruit_ILI9341.h"
#ifdef ESP8266
#include <pgmspace.h>
#else
#include <avr/pgmspace.h>
#endif
#include <limits.h>
#include "pins_arduino.h"
#include "wiring_private.h"
#include <SPI.h>
#ifdef ESP8266
#define hwSPI true
#endif
#define writeCmdDataTmp(cmd, ...) { \
const uint8_t tmp##cmd##_[] = { __VA_ARGS__ }; \
writeCmdData(cmd, (uint8_t *) &tmp##cmd##_[0], sizeof(tmp##cmd##_)); \
}
#ifndef ESP8266
// Constructor when using software SPI. All output pins are configurable.
Adafruit_ILI9341::Adafruit_ILI9341(int8_t cs, int8_t dc, int8_t mosi,
int8_t sclk, int8_t rst, int8_t miso) : Adafruit_GFX(ILI9341_TFTWIDTH, ILI9341_TFTHEIGHT) {
_cs = cs;
_dc = dc;
_mosi = mosi;
_miso = miso;
_sclk = sclk;
_rst = rst;
hwSPI = false;
}
#endif
// 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.)
#if defined(ILI9341_USE_HW_CS) || defined(ILI9341_USE_NO_CS)
Adafruit_ILI9341::Adafruit_ILI9341(int8_t dc, int8_t rst) : Adafruit_GFX(ILI9341_TFTWIDTH, ILI9341_TFTHEIGHT) {
_dc = dc;
_rst = rst;
hwSPI = true;
#ifdef ESP8266
_dcMask = digitalPinToBitMask(_dc);
_rstMask = digitalPinToBitMask(_rst);
#else
_mosi = _sclk = 0;
#endif
}
#else
Adafruit_ILI9341::Adafruit_ILI9341(int8_t cs, int8_t dc, int8_t rst) : Adafruit_GFX(ILI9341_TFTWIDTH, ILI9341_TFTHEIGHT) {
_cs = cs;
_dc = dc;
_rst = rst;
#ifdef ESP8266
_csMask = digitalPinToBitMask(_cs);
_dcMask = digitalPinToBitMask(_dc);
_rstMask = digitalPinToBitMask(_rst);
#else
hwSPI = true;
_mosi = _sclk = 0;
#endif
}
#endif
#ifdef ESP8266
void Adafruit_ILI9341::spiwrite16(uint16_t c) {
SPI.write16(c, true);
}
#endif
void Adafruit_ILI9341::spiwrite(uint8_t c) {
//Serial.print("0x"); Serial.print(c, HEX); Serial.print(", ");
#ifndef ESP8266
if (hwSPI) {
#endif
#if defined (__AVR__)
uint8_t backupSPCR = SPCR;
SPCR = mySPCR;
SPDR = c;
while(!(SPSR & _BV(SPIF)));
SPCR = backupSPCR;
#elif defined(TEENSYDUINO) || defined(ESP8266)
SPI.write(c);
#elif defined (__arm__)
SPI.setClockDivider(11); // 8-ish MHz (full! speed!)
SPI.setBitOrder(MSBFIRST);
SPI.setDataMode(SPI_MODE0);
SPI.transfer(c);
#endif
#ifndef ESP8266
} else {
// 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
}
void Adafruit_ILI9341::spiwriteBytes(uint8_t * data, uint32_t size) {
#ifdef ESP8266
SPI.writeBytes(data, size);
#else
while(size--) {
spiwrite(*data);
data++;
}
#endif
}
void Adafruit_ILI9341::spiwritePattern(uint8_t * data, uint8_t size, uint32_t repeat) {
#ifdef ESP8266
SPI.writePattern(data, size, repeat);
#else
uint8_t * ptr;
uint8_t i;
while(repeat--) {
ptr = data;
i = size;
while(i--) {
spiwrite(*ptr);
ptr++;
}
}
#endif
}
inline void Adafruit_ILI9341::spiCsLow(void) {
#ifdef ILI9341_USE_DIGITAL_WRITE
digitalWrite(_cs, LOW);
#else
#ifdef ESP8266
#if !defined(ILI9341_USE_HW_CS) && !defined(ILI9341_USE_NO_CS)
GPOC = _csMask;
#endif
#else
*csport &= ~cspinmask;
#endif
#endif
}
inline void Adafruit_ILI9341::spiCsHigh(void) {
#ifdef ILI9341_USE_DIGITAL_WRITE
digitalWrite(_cs, HIGH);
#else
#ifdef ESP8266
#if !defined(ILI9341_USE_HW_CS) && !defined(ILI9341_USE_NO_CS)
GPOS = _csMask;
#endif
#else
*csport |= cspinmask;
#endif
#endif
}
inline void Adafruit_ILI9341::spiDcLow(void){
#ifdef ILI9341_USE_DIGITAL_WRITE
digitalWrite(_dc, LOW);
#else
#ifdef ESP8266
#ifndef USE_HW_CS
GPOC = _dcMask;
#endif
#else
*dcport &= ~dcpinmask;
#endif
#endif
}
inline void Adafruit_ILI9341::spiDcHigh(void) {
#ifdef ILI9341_USE_DIGITAL_WRITE
digitalWrite(_dc, HIGH);
#else
#ifdef ESP8266
GPOS = _dcMask;
#else
*dcport |= dcpinmask;
#endif
#endif
}
void Adafruit_ILI9341::writecommand(uint8_t c) {
spiDcLow();
spiCsLow();
spiwrite(c);
spiCsHigh();
}
void Adafruit_ILI9341::writedata(uint8_t c) {
spiDcHigh();
spiCsLow();
spiwrite(c);
spiCsHigh();
}
void Adafruit_ILI9341::writedata(uint8_t * data, uint8_t size) {
spiDcHigh();
spiCsLow();
spiwriteBytes(data, size);
spiCsHigh();
}
void Adafruit_ILI9341::writeCmdData(uint8_t cmd, uint8_t * data, uint8_t size) {
spiDcLow();
spiCsLow();
spiwrite(cmd);
spiDcHigh();
spiwriteBytes(data, size);
spiCsHigh();
}
uint16_t Adafruit_ILI9341::getHeight(void) {
return _height;
}
uint16_t Adafruit_ILI9341::getWidth(void){
return _width;
}
// 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
#ifdef ESP8266
SPISettings spiSettings = SPISettings(ESP8266_CLOCK, MSBFIRST, SPI_MODE0);
#else
SPISettings spiSettings = SPISettings(8000000, MSBFIRST, SPI_MODE0);
#endif
static inline void spi_begin(void) __attribute__((always_inline));
static inline void spi_begin(void) {
SPI.beginTransaction(spiSettings);
}
static inline void spi_end(void) __attribute__((always_inline));
static inline void spi_end(void) {
SPI.endTransaction();
}
#else
#define spi_begin()
#define spi_end()
#endif
// 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_ILI9341::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_ILI9341::begin(void) {
if (_rst > NOT_A_PIN) {
pinMode(_rst, OUTPUT);
digitalWrite(_rst, LOW);
}
pinMode(_dc, OUTPUT);
#ifndef USE_HW_CS
pinMode(_cs, OUTPUT);
#endif
#ifndef ESP8266
#ifndef ILI9341_USE_DIGITAL_WRITE
csport = portOutputRegister(digitalPinToPort(_cs));
cspinmask = digitalPinToBitMask(_cs);
dcport = portOutputRegister(digitalPinToPort(_dc));
dcpinmask = digitalPinToBitMask(_dc);
#endif
if(hwSPI) { // Using hardware SPI
#endif
#if defined (__AVR__)
SPI.begin();
SPI.setClockDivider(SPI_CLOCK_DIV2); // 8 MHz (full! speed!)
SPI.setBitOrder(MSBFIRST);
SPI.setDataMode(SPI_MODE0);
mySPCR = SPCR;
#elif defined(TEENSYDUINO)
SPI.begin();
SPI.setClockDivider(SPI_CLOCK_DIV2); // 8 MHz (full! speed!)
SPI.setBitOrder(MSBFIRST);
SPI.setDataMode(SPI_MODE0);
#elif defined (__arm__)
SPI.begin();
SPI.setClockDivider(11); // 8-ish MHz (full! speed!)
SPI.setBitOrder(MSBFIRST);
SPI.setDataMode(SPI_MODE0);
#elif defined (ESP8266)
SPI.begin();
#ifdef USE_HW_CS
SPI.setHwCs(true);
#endif
#endif
#ifndef ESP8266
} else {
pinMode(_sclk, OUTPUT);
pinMode(_mosi, OUTPUT);
pinMode(_miso, INPUT);
clkport = portOutputRegister(digitalPinToPort(_sclk));
clkpinmask = digitalPinToBitMask(_sclk);
mosiport = portOutputRegister(digitalPinToPort(_mosi));
mosipinmask = digitalPinToBitMask(_mosi);
*clkport &= ~clkpinmask;
*mosiport &= ~mosipinmask;
}
#endif
// toggle RST low to reset
if (_rst > NOT_A_PIN) {
digitalWrite(_rst, HIGH);
delay(5);
digitalWrite(_rst, LOW);
delay(20);
digitalWrite(_rst, HIGH);
delay(150);
}
/*
uint8_t x = readcommand8(ILI9341_RDMODE);
Serial.print("\nDisplay Power Mode: 0x"); Serial.println(x, HEX);
x = readcommand8(ILI9341_RDMADCTL);
Serial.print("\nMADCTL Mode: 0x"); Serial.println(x, HEX);
x = readcommand8(ILI9341_RDPIXFMT);
Serial.print("\nPixel Format: 0x"); Serial.println(x, HEX);
x = readcommand8(ILI9341_RDIMGFMT);
Serial.print("\nImage Format: 0x"); Serial.println(x, HEX);
x = readcommand8(ILI9341_RDSELFDIAG);
Serial.print("\nSelf Diagnostic: 0x"); Serial.println(x, HEX);
*/
//if(cmdList) commandList(cmdList);
if (hwSPI) spi_begin();
writeCmdDataTmp(0xEF, 0x03, 0x80, 0x02);
writeCmdDataTmp(0xCF, 0x00, 0XC1, 0X30);
writeCmdDataTmp(0xED, 0x64, 0x03, 0X12, 0X81);
writeCmdDataTmp(0xE8, 0x85, 0x00, 0x78);
writeCmdDataTmp(0xCB, 0x39, 0x2C, 0x00, 0x34, 0x02);
writeCmdDataTmp(0xF7, 0x20);
writeCmdDataTmp(0xEA, 0x00, 0x00);
//Powercontrol
//VRH[5:0]
writeCmdDataTmp(ILI9341_PWCTR1, 0x23);
//Powercontrol
//SAP[2:0];BT[3:0]
writeCmdDataTmp(ILI9341_PWCTR2, 0x10);
//VCMcontrol
writeCmdDataTmp(ILI9341_VMCTR1, 0x3e, 0x28);
//VCMcontrol2
writeCmdDataTmp(ILI9341_VMCTR2, 0x86);
//MemoryAccessControl
writeCmdDataTmp(ILI9341_MADCTL, 0x48);
writeCmdDataTmp(ILI9341_PIXFMT, 0x55);
writeCmdDataTmp(ILI9341_FRMCTR1, 0x00, 0x18);
//DisplayFunctionControl
writeCmdDataTmp(ILI9341_DFUNCTR, 0x08, 0x82, 0x27);
//3GammaFunctionDisable
writeCmdDataTmp(0xF2, 0x00);
//Gammacurveselected
writeCmdDataTmp(ILI9341_GAMMASET, 0x01);
//SetGamma
writeCmdDataTmp(ILI9341_GMCTRP1, 0x0F, 0x31, 0x2B, 0x0C, 0x0E, 0x08, 0x4E, 0xF1, 0x37, 0x07, 0x10, 0x03, 0x0E, 0x09, 0x00);
writeCmdDataTmp(ILI9341_GMCTRN1, 0x00, 0x0E, 0x14, 0x03, 0x11, 0x07, 0x31, 0xC1, 0x48, 0x08, 0x0F, 0x0C, 0x31, 0x36, 0x0F);
writecommand(ILI9341_SLPOUT); //Exit Sleep
if (hwSPI) spi_end();
delay(120);
if (hwSPI) spi_begin();
writecommand(ILI9341_DISPON); //Display on
if (hwSPI) spi_end();
}
void Adafruit_ILI9341::area_update_start(uint32_t x, uint32_t y, uint32_t w, uint32_t h) {
spiCsLow();
setAddrWindow_(x, y, x + w - 1, y + h - 1);
}
void Adafruit_ILI9341::area_update_data(uint8_t *data, uint32_t pixel){
spiwriteBytes(&data[0], (pixel*2));
}
void Adafruit_ILI9341::area_update_end(void){
spiCsHigh();
}
void Adafruit_ILI9341::setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) {
spiCsLow();
setAddrWindow_(x0, y0, x1, y1);
spiCsHigh();
}
void Adafruit_ILI9341::setAddrWindow_(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) {
uint8_t buffC[] = { (uint8_t) (x0 >> 8), (uint8_t) x0, (uint8_t) (x1 >> 8), (uint8_t) x1 };
uint8_t buffP[] = { (uint8_t) (y0 >> 8), (uint8_t) y0, (uint8_t) (y1 >> 8), (uint8_t) y1 };
spiDcLow();
spiwrite(ILI9341_CASET);
spiDcHigh();
spiwriteBytes(&buffC[0], sizeof(buffC));
spiDcLow();
spiwrite(ILI9341_PASET);
spiDcHigh();
spiwriteBytes(&buffP[0], sizeof(buffP));
spiDcLow();
spiwrite(ILI9341_RAMWR);
spiDcHigh();
}
void Adafruit_ILI9341::pushColor(uint16_t color) {
if (hwSPI) spi_begin();
spiDcHigh();
spiCsLow();
#ifdef ESP8266
spiwrite16(color);
#else
spiwrite(color >> 8);
spiwrite(color);
#endif
spiCsHigh();
if (hwSPI) spi_end();
}
void Adafruit_ILI9341::drawPixel(int16_t x, int16_t y, uint16_t color) {
if((x < 0) || (x >= _width) || (y < 0) || (y >= _height)) {
return;
}
if(hwSPI) {
spi_begin();
}
spiCsLow();
setAddrWindow_(x, y, x + 1, y + 1);
#ifdef ESP8266
spiwrite16(color);
#else
spiwrite(color >> 8);
spiwrite(color);
#endif
spiCsHigh();
if(hwSPI) {
spi_end();
}
}
void Adafruit_ILI9341::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();
}
spiCsLow();
setAddrWindow_(x, y, x, (y + h - 1));
uint8_t colorBin[] = { (uint8_t) (color >> 8), (uint8_t) color };
spiwritePattern(&colorBin[0], 2, h);
spiCsHigh();
if(hwSPI) {
spi_end();
}
}
void Adafruit_ILI9341::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();
}
spiDcHigh();
spiCsLow();
setAddrWindow_(x, y, (x + w - 1), y);
uint8_t colorBin[] = { (uint8_t) (color >> 8), (uint8_t) color };
spiwritePattern(&colorBin[0], 2, w);
spiCsHigh();
if(hwSPI) {
spi_end();
}
}
void Adafruit_ILI9341::fillScreen(uint16_t color) {
fillRect(0, 0, _width, _height, color);
}
// fill a rectangle
void Adafruit_ILI9341::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();
}
spiCsLow();
setAddrWindow_(x, y, (x + w - 1), (y + h - 1));
uint8_t colorBin[] = { (uint8_t) (color >> 8), (uint8_t) color };
spiwritePattern(&colorBin[0], 2, (w * h));
spiCsHigh();
if(hwSPI) {
spi_end();
}
}
// Pass 8-bit (each) R,G,B, get back 16-bit packed color
uint16_t Adafruit_ILI9341::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 Adafruit_ILI9341::setRotation(uint8_t m) {
if (hwSPI) spi_begin();
writecommand(ILI9341_MADCTL);
rotation = m % 4; // can't be higher than 3
switch (rotation) {
case 0:
writedata(MADCTL_MX | MADCTL_BGR);
_width = ILI9341_TFTWIDTH;
_height = ILI9341_TFTHEIGHT;
break;
case 1:
writedata(MADCTL_MV | MADCTL_BGR);
_width = ILI9341_TFTHEIGHT;
_height = ILI9341_TFTWIDTH;
break;
case 2:
writedata(MADCTL_MY | MADCTL_BGR);
_width = ILI9341_TFTWIDTH;
_height = ILI9341_TFTHEIGHT;
break;
case 3:
writedata(MADCTL_MX | MADCTL_MY | MADCTL_MV | MADCTL_BGR);
_width = ILI9341_TFTHEIGHT;
_height = ILI9341_TFTWIDTH;
break;
}
if (hwSPI) spi_end();
}
void Adafruit_ILI9341::invertDisplay(boolean i) {
if (hwSPI) spi_begin();
writecommand(i ? ILI9341_INVON : ILI9341_INVOFF);
if (hwSPI) spi_end();
}
////////// stuff not actively being used, but kept for posterity
uint8_t Adafruit_ILI9341::spiread(void) {
uint8_t r = 0;
if (hwSPI) {
#if defined (__AVR__)
uint8_t backupSPCR = SPCR;
SPCR = mySPCR;
SPDR = 0x00;
while(!(SPSR & _BV(SPIF)));
r = SPDR;
SPCR = backupSPCR;
#elif defined(TEENSYDUINO)
r = SPI.transfer(0x00);
#elif defined (__arm__)
SPI.setClockDivider(11); // 8-ish MHz (full! speed!)
SPI.setBitOrder(MSBFIRST);
SPI.setDataMode(SPI_MODE0);
r = SPI.transfer(0x00);
#else
r = SPI.transfer(0x00);
#endif
} else {
#ifndef ESP8266
for (uint8_t i=0; i<8; i++) {
digitalWrite(_sclk, LOW);
digitalWrite(_sclk, HIGH);
r <<= 1;
if (digitalRead(_miso))
r |= 0x1;
}
#endif
}
//Serial.print("read: 0x"); Serial.print(r, HEX);
return r;
}
uint8_t Adafruit_ILI9341::readdata(void) {
if(hwSPI) spi_begin();
spiCsLow();
spiDcLow();
uint8_t r = spiread();
spiCsHigh();
if(hwSPI) spi_end();
return r;
}
uint8_t Adafruit_ILI9341::readcommand8(uint8_t c, uint8_t index) {
if(hwSPI) spi_begin();
spiCsLow();
spiDcLow();
spiwrite(0xD9); // woo sekret command?
spiDcHigh();
spiwrite(0x10 + index);
#ifndef ESP8266
digitalWrite(_sclk, LOW);
#endif
spiDcLow();
spiwrite(c);
spiDcHigh();
uint8_t r = spiread();
spiCsHigh();
if(hwSPI) spi_end();
return r;
}
/*
uint16_t Adafruit_ILI9341::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_ILI9341::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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