mirror of https://github.com/arendst/Tasmota.git
635 lines
15 KiB
C++
635 lines
15 KiB
C++
/***************************************************
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This is a library for the ST7789 IPS SPI display.
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Originally written by Limor Fried/Ladyada for
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Adafruit Industries.
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Modified by Ananev Ilia
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****************************************************/
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#include "Arduino_ST7789.h"
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#include <limits.h>
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#include "pins_arduino.h"
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#include "wiring_private.h"
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#include <SPI.h>
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const uint16_t ST7789_colors[]={ST7789_BLACK,ST7789_WHITE,ST7789_RED,ST7789_GREEN,ST7789_BLUE,ST7789_CYAN,ST7789_MAGENTA,\
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ST7789_YELLOW,ST7789_NAVY,ST7789_DARKGREEN,ST7789_DARKCYAN,ST7789_MAROON,ST7789_PURPLE,ST7789_OLIVE,\
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ST7789_LIGHTGREY,ST7789_DARKGREY,ST7789_ORANGE,ST7789_GREENYELLOW,ST7789_PINK};
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#ifdef ESP32
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#include "esp8266toEsp32.h"
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#define ST7789_DIMMER
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#endif
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uint16_t Arduino_ST7789::GetColorFromIndex(uint8_t index) {
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if (index>=sizeof(ST7789_colors)/2) index=0;
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return ST7789_colors[index];
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}
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static const uint8_t PROGMEM
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init_cmd[] = { // Initialization commands for 7789 screens
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10, // 9 commands in list:
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ST7789_SWRESET, ST_CMD_DELAY, // 1: Software reset, no args, w/delay
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150, // 150 ms delay
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ST7789_SLPOUT , ST_CMD_DELAY, // 2: Out of sleep mode, no args, w/delay
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255, // 255 = 500 ms delay
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ST7789_COLMOD , 1+ST_CMD_DELAY, // 3: Set color mode, 1 arg + delay:
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0x55, // 16-bit color
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10, // 10 ms delay
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ST7789_MADCTL , 1, // 4: Memory access ctrl (directions), 1 arg:
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0x00, // Row addr/col addr, bottom to top refresh
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ST7789_INVON , ST_CMD_DELAY, // 7: Inversion ON
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10,
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ST7789_NORON , ST_CMD_DELAY, // 8: Normal display on, no args, w/delay
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10, // 10 ms delay
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ST7789_DISPON , ST_CMD_DELAY, // 9: Main screen turn on, no args, w/delay
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255 }; // 255 = 500 ms delay
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inline uint16_t swapcolor(uint16_t x) {
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return (x << 11) | (x & 0x07E0) | (x >> 11);
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}
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#if defined (SPI_HAS_TRANSACTION)
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static SPISettings ST7789_SPISettings;
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#elif defined (__AVR__) || defined(CORE_TEENSY)
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static uint8_t SPCRbackup;
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static uint8_t mySPCR;
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#endif
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#if defined (SPI_HAS_TRANSACTION)
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#define SPI_BEGIN_TRANSACTION() if (_hwSPI) SPI.beginTransaction(ST7789_SPISettings)
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#define SPI_END_TRANSACTION() if (_hwSPI) SPI.endTransaction()
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#else
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#define SPI_BEGIN_TRANSACTION() (void)
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#define SPI_END_TRANSACTION() (void)
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#endif
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// Constructor when using software SPI. All output pins are configurable.
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Arduino_ST7789::Arduino_ST7789(int8_t dc, int8_t rst, int8_t sid, int8_t sclk, int8_t cs, int8_t bp)
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: Renderer(_width, _height)
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{
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_cs = cs;
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_dc = dc;
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_sid = sid;
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_sclk = sclk;
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_rst = rst;
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_hwSPI = false;
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_bp = bp;
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if(dc == -1) _SPI9bit = true;
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else _SPI9bit = false;
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}
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// Constructor when using hardware SPI. Faster, but must use SPI pins
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// specific to each board type (e.g. 11,13 for Uno, 51,52 for Mega, etc.)
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Arduino_ST7789::Arduino_ST7789(int8_t dc, int8_t rst, int8_t cs, int8_t bp)
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: Renderer(_width, _height) {
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_cs = cs;
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_dc = dc;
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_rst = rst;
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_hwSPI = true;
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_SPI9bit = false;
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_sid = _sclk = -1;
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_bp = bp;
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}
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void Arduino_ST7789::DisplayInit(int8_t p,int8_t size,int8_t rot,int8_t font) {
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setRotation(rot);
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if (_width==320 || _height==320) {
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invertDisplay(false);
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} else {
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invertDisplay(true);
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}
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//setTextWrap(false); // Allow text to run off edges
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//cp437(true);
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setTextFont(font&3);
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setTextSize(size&7);
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setTextColor(ST7789_WHITE,ST7789_BLACK);
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setCursor(0,0);
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fillScreen(ST7789_BLACK);
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}
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inline void Arduino_ST7789::spiwrite(uint8_t c)
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{
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//Serial.println(c, HEX);
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if (_hwSPI)
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{
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#if defined (SPI_HAS_TRANSACTION)
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SPI.transfer(c);
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#elif defined (__AVR__) || defined(CORE_TEENSY)
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SPCRbackup = SPCR;
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SPCR = mySPCR;
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SPI.transfer(c);
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SPCR = SPCRbackup;
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#elif defined (__arm__)
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SPI.setClockDivider(21); //4MHz
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SPI.setDataMode(SPI_MODE2);
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SPI.transfer(c);
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#endif
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}
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else
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{
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if(_SPI9bit)
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{
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//9s bit send first
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#if defined(USE_FAST_IO)
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*clkport &= ~clkpinmask;
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if(_DCbit) *dataport |= datapinmask;
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else *dataport &= ~datapinmask;
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*clkport |= clkpinmask;
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#else
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digitalWrite(_sclk, LOW);
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if(_DCbit) digitalWrite(_sid, HIGH);
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else digitalWrite(_sid, LOW);
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digitalWrite(_sclk, HIGH);
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#endif
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// Fast SPI bitbang swiped from LPD8806 library
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for(uint8_t bit = 0x80; bit; bit >>= 1) {
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#if defined(USE_FAST_IO)
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*clkport &= ~clkpinmask;
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if(c & bit) *dataport |= datapinmask;
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else *dataport &= ~datapinmask;
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*clkport |= clkpinmask;
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#else
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digitalWrite(_sclk, LOW);
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if(c & bit) digitalWrite(_sid, HIGH);
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else digitalWrite(_sid, LOW);
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digitalWrite(_sclk, HIGH);
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#endif
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}
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}
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else
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{
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// Fast SPI bitbang swiped from LPD8806 library
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for(uint8_t bit = 0x80; bit; bit >>= 1) {
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#if defined(USE_FAST_IO)
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*clkport &= ~clkpinmask;
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if(c & bit) *dataport |= datapinmask;
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else *dataport &= ~datapinmask;
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*clkport |= clkpinmask;
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#else
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digitalWrite(_sclk, LOW);
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if(c & bit) digitalWrite(_sid, HIGH);
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else digitalWrite(_sid, LOW);
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digitalWrite(_sclk, HIGH);
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#endif
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}
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}
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}
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}
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void Arduino_ST7789::writecommand(uint8_t c) {
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DC_LOW();
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CS_LOW();
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SPI_BEGIN_TRANSACTION();
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spiwrite(c);
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CS_HIGH();
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SPI_END_TRANSACTION();
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}
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void Arduino_ST7789::writedata(uint8_t c) {
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SPI_BEGIN_TRANSACTION();
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DC_HIGH();
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CS_LOW();
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spiwrite(c);
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CS_HIGH();
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SPI_END_TRANSACTION();
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}
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// Companion code to the above tables. Reads and issues
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// a series of LCD commands stored in PROGMEM byte array.
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void Arduino_ST7789::displayInit(const uint8_t *addr) {
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uint8_t numCommands, numArgs;
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uint16_t ms;
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//<-----------------------------------------------------------------------------------------
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DC_HIGH();
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if (!_hwSPI) {
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#if defined(USE_FAST_IO)
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*clkport |= clkpinmask;
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#else
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digitalWrite(_sclk, HIGH);
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#endif
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}
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//<-----------------------------------------------------------------------------------------
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numCommands = pgm_read_byte(addr++); // Number of commands to follow
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while (numCommands--) { // For each command...
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writecommand(pgm_read_byte(addr++)); // Read, issue command
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numArgs = pgm_read_byte(addr++); // Number of args to follow
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ms = numArgs & ST_CMD_DELAY; // If hibit set, delay follows args
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numArgs &= ~ST_CMD_DELAY; // Mask out delay bit
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while (numArgs--) { // For each argument...
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writedata(pgm_read_byte(addr++)); // Read, issue argument
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}
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if (ms) {
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ms = pgm_read_byte(addr++); // Read post-command delay time (ms)
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if (ms == 255) ms = 500; // If 255, delay for 500 ms
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delay(ms);
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}
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}
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}
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// Initialization code common to all ST7789 displays
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void Arduino_ST7789::commonInit(const uint8_t *cmdList) {
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_ystart = _xstart = 0;
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_colstart = _rowstart = 0; // May be overridden in init func
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pinMode(_dc, OUTPUT);
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if (_cs>=0) {
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pinMode(_cs, OUTPUT);
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}
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if (_bp>=0) {
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// #define ESP32_PWM_CHANNEL 1
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#ifdef ST7789_DIMMER
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analogWrite(_bp, 128);
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#else
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pinMode(_bp, OUTPUT);
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#endif
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}
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#if defined(USE_FAST_IO)
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dcport = portOutputRegister(digitalPinToPort(_dc));
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dcpinmask = digitalPinToBitMask(_dc);
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if (_cs>=0) {
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csport = portOutputRegister(digitalPinToPort(_cs));
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cspinmask = digitalPinToBitMask(_cs);
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}
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#endif
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if(_hwSPI) { // Using hardware SPI
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#if defined (SPI_HAS_TRANSACTION)
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SPI.begin();
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// ST7789_SPISettings = SPISettings(24000000, MSBFIRST, SPI_MODE2);
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ST7789_SPISettings = SPISettings(1000000, MSBFIRST, SPI_MODE2);
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#elif defined (__AVR__) || defined(CORE_TEENSY)
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SPCRbackup = SPCR;
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SPI.begin();
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SPI.setClockDivider(SPI_CLOCK_DIV4);
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SPI.setDataMode(SPI_MODE2);
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mySPCR = SPCR; // save our preferred state
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SPCR = SPCRbackup; // then restore
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#elif defined (__SAM3X8E__)
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SPI.begin();
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SPI.setClockDivider(21); //4MHz
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SPI.setDataMode(SPI_MODE2);
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#endif
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} else {
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pinMode(_sclk, OUTPUT);
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pinMode(_sid , OUTPUT);
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digitalWrite(_sclk, LOW);
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digitalWrite(_sid, LOW);
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#if defined(USE_FAST_IO)
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clkport = portOutputRegister(digitalPinToPort(_sclk));
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dataport = portOutputRegister(digitalPinToPort(_sid));
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clkpinmask = digitalPinToBitMask(_sclk);
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datapinmask = digitalPinToBitMask(_sid);
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#endif
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}
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// toggle RST low to reset; CS low so it'll listen to us
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CS_LOW();
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if (_rst != -1) {
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pinMode(_rst, OUTPUT);
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digitalWrite(_rst, HIGH);
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delay(50);
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digitalWrite(_rst, LOW);
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delay(50);
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digitalWrite(_rst, HIGH);
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delay(50);
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}
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if (cmdList)
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displayInit(cmdList);
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}
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void Arduino_ST7789::setRotation(uint8_t m) {
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writecommand(ST7789_MADCTL);
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rotation = m % 4; // can't be higher than 3
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switch (rotation) {
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case 0:
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writedata(ST7789_MADCTL_MX | ST7789_MADCTL_MY | ST7789_MADCTL_RGB);
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_xstart = 0;
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_ystart = 0;
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if (_width==240 && _height==240) {
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_xstart = ST7789_240x240_XSTART_R0;
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_ystart = ST7789_240x240_YSTART_R0;
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}
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if (_width==135 && _height==240) {
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_xstart = ST7789_135x240_XSTART_R0;
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_ystart = ST7789_135x240_YSTART_R0;
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}
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break;
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case 1:
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writedata(ST7789_MADCTL_MY | ST7789_MADCTL_MV | ST7789_MADCTL_RGB);
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_ystart = 0;
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_xstart = 0;
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if (_width==240 && _height==240) {
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_xstart = ST7789_240x240_XSTART_R1;
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_ystart = ST7789_240x240_YSTART_R1;
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}
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if (_width==240 && _height==135) {
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_xstart = ST7789_135x240_XSTART_R1;
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_ystart = ST7789_135x240_YSTART_R1;
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}
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break;
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case 2:
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writedata(ST7789_MADCTL_RGB);
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_xstart = 0;
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_ystart = 0;
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if (_width==240 && _height==240) {
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_xstart = ST7789_240x240_XSTART_R2;
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_ystart = ST7789_240x240_YSTART_R2;
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}
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if (_width==135 && _height==240) {
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_xstart = ST7789_135x240_XSTART_R2;
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_ystart = ST7789_135x240_YSTART_R2;
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}
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break;
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case 3:
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writedata(ST7789_MADCTL_MX | ST7789_MADCTL_MV | ST7789_MADCTL_RGB);
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_xstart = 0;
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_ystart = 0;
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if (_width==240 && _height==240) {
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_xstart = ST7789_240x240_XSTART_R3;
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_ystart = ST7789_240x240_YSTART_R3;
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}
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if (_width==240 && _height==135) {
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_xstart = ST7789_135x240_XSTART_R3;
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_ystart = ST7789_135x240_YSTART_R3;
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}
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break;
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}
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}
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void Arduino_ST7789::setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) {
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setAddrWindow_int(x0,y0,x1-1,y1-1);
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}
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void Arduino_ST7789::setAddrWindow_int(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1) {
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uint16_t x_start = x0 + _xstart, x_end = x1 + _xstart;
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uint16_t y_start = y0 + _ystart, y_end = y1 + _ystart;
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writecommand(ST7789_CASET); // Column addr set
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writedata(x_start >> 8);
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writedata(x_start & 0xFF); // XSTART
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writedata(x_end >> 8);
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writedata(x_end & 0xFF); // XEND
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writecommand(ST7789_RASET); // Row addr set
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writedata(y_start >> 8);
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writedata(y_start & 0xFF); // YSTART
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writedata(y_end >> 8);
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writedata(y_end & 0xFF); // YEND
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writecommand(ST7789_RAMWR); // write to RAM
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}
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void Arduino_ST7789::drawPixel(int16_t x, int16_t y, uint16_t color) {
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if((x < 0) ||(x >= _width) || (y < 0) || (y >= _height)) return;
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setAddrWindow_int(x,y,x+1,y+1);
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SPI_BEGIN_TRANSACTION();
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DC_HIGH();
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CS_LOW();
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spiwrite(color >> 8);
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spiwrite(color);
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CS_HIGH();
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SPI_END_TRANSACTION();
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}
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void Arduino_ST7789::drawFastVLine(int16_t x, int16_t y, int16_t h,
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uint16_t color) {
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// Rudimentary clipping
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if((x >= _width) || (y >= _height)) return;
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if((y+h-1) >= _height) h = _height-y;
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setAddrWindow_int(x, y, x, y+h-1);
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uint8_t hi = color >> 8, lo = color;
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SPI_BEGIN_TRANSACTION();
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DC_HIGH();
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CS_LOW();
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while (h--) {
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spiwrite(hi);
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spiwrite(lo);
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}
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CS_HIGH();
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SPI_END_TRANSACTION();
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}
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void Arduino_ST7789::drawFastHLine(int16_t x, int16_t y, int16_t w,
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uint16_t color) {
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// Rudimentary clipping
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if((x >= _width) || (y >= _height)) return;
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if((x+w-1) >= _width) w = _width-x;
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setAddrWindow_int(x, y, x+w-1, y);
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uint8_t hi = color >> 8, lo = color;
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SPI_BEGIN_TRANSACTION();
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DC_HIGH();
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CS_LOW();
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while (w--) {
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spiwrite(hi);
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spiwrite(lo);
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}
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CS_HIGH();
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SPI_END_TRANSACTION();
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}
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void Arduino_ST7789::fillScreen(uint16_t color) {
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fillRect(0, 0, _width, _height, color);
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}
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// fill a rectangle
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void Arduino_ST7789::fillRect(int16_t x, int16_t y, int16_t w, int16_t h,
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uint16_t color) {
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// rudimentary clipping (drawChar w/big text requires this)
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if((x >= _width) || (y >= _height)) return;
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if((x + w - 1) >= _width) w = _width - x;
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if((y + h - 1) >= _height) h = _height - y;
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setAddrWindow_int(x, y, x+w-1, y+h-1);
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uint8_t hi = color >> 8, lo = color;
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SPI_BEGIN_TRANSACTION();
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DC_HIGH();
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CS_LOW();
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for(y=h; y>0; y--) {
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for(x=w; x>0; x--) {
|
|
spiwrite(hi);
|
|
spiwrite(lo);
|
|
}
|
|
delay(0);
|
|
}
|
|
CS_HIGH();
|
|
SPI_END_TRANSACTION();
|
|
}
|
|
|
|
// Pass 8-bit (each) R,G,B, get back 16-bit packed color
|
|
uint16_t Arduino_ST7789::Color565(uint8_t r, uint8_t g, uint8_t b) {
|
|
return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3);
|
|
}
|
|
|
|
void Arduino_ST7789::invertDisplay(boolean i) {
|
|
writecommand(i ? ST7789_INVON : ST7789_INVOFF);
|
|
}
|
|
|
|
/******** low level bit twiddling **********/
|
|
|
|
inline void Arduino_ST7789::CS_HIGH(void) {
|
|
if(_cs>=0) {
|
|
#if defined(USE_FAST_IO)
|
|
*csport |= cspinmask;
|
|
#else
|
|
digitalWrite(_cs, HIGH);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
inline void Arduino_ST7789::CS_LOW(void) {
|
|
if(_cs>=0) {
|
|
#if defined(USE_FAST_IO)
|
|
*csport &= ~cspinmask;
|
|
#else
|
|
digitalWrite(_cs, LOW);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
inline void Arduino_ST7789::DC_HIGH(void) {
|
|
_DCbit = true;
|
|
#if defined(USE_FAST_IO)
|
|
*dcport |= dcpinmask;
|
|
#else
|
|
digitalWrite(_dc, HIGH);
|
|
#endif
|
|
}
|
|
|
|
inline void Arduino_ST7789::DC_LOW(void) {
|
|
_DCbit = false;
|
|
#if defined(USE_FAST_IO)
|
|
*dcport &= ~dcpinmask;
|
|
#else
|
|
digitalWrite(_dc, LOW);
|
|
#endif
|
|
}
|
|
|
|
void Arduino_ST7789::init(uint16_t width, uint16_t height) {
|
|
commonInit(NULL);
|
|
|
|
_height = height;
|
|
_width = width;
|
|
|
|
displayInit(init_cmd);
|
|
|
|
setRotation(2);
|
|
|
|
}
|
|
|
|
void Arduino_ST7789::DisplayOnff(int8_t on) {
|
|
if (on) {
|
|
writecommand(ST7789_DISPON); //Display on
|
|
if (_bp>=0) {
|
|
#ifdef ST7789_DIMMER
|
|
analogWrite(_bp, dimmer);
|
|
// ledcWrite(ESP32_PWM_CHANNEL,dimmer);
|
|
#else
|
|
digitalWrite(_bp,HIGH);
|
|
#endif
|
|
}
|
|
} else {
|
|
writecommand(ST7789_DISPOFF);
|
|
if (_bp>=0) {
|
|
#ifdef ST7789_DIMMER
|
|
analogWrite(_bp, 0);
|
|
// ledcWrite(ESP32_PWM_CHANNEL,0);
|
|
#else
|
|
digitalWrite(_bp,LOW);
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
|
|
// dimmer 0-100
|
|
void Arduino_ST7789::dim(uint8_t dim) {
|
|
dimmer = dim;
|
|
if (dimmer>15) dimmer=15;
|
|
dimmer=((float)dimmer/15.0)*255.0;
|
|
#ifdef ESP32
|
|
analogWrite(_bp, dimmer);
|
|
// ledcWrite(ESP32_PWM_CHANNEL,dimmer);
|
|
#endif
|
|
}
|
|
|
|
void Arduino_ST7789::pushColor(uint16_t color) {
|
|
SPI_BEGIN_TRANSACTION();
|
|
DC_HIGH();
|
|
CS_LOW();
|
|
|
|
spiwrite(color >> 8);
|
|
spiwrite(color);
|
|
|
|
CS_HIGH();
|
|
SPI_END_TRANSACTION();
|
|
}
|
|
|
|
void Arduino_ST7789::pushColors(uint16_t *data, uint16_t len, boolean first) {
|
|
uint16_t color;
|
|
|
|
SPI_BEGIN_TRANSACTION();
|
|
DC_HIGH();
|
|
CS_LOW();
|
|
|
|
while (len--) {
|
|
color = *data++;
|
|
spiwrite(color >> 8);
|
|
spiwrite(color);
|
|
}
|
|
|
|
CS_HIGH();
|
|
SPI_END_TRANSACTION();
|
|
}
|