253 lines
8.1 KiB
C
253 lines
8.1 KiB
C
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// https://github.com/PaulStoffregen/ILI9341_t3
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// http://forum.pjrc.com/threads/26305-Highly-optimized-ILI9341-(320x240-TFT-color-display)-library
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/***************************************************
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This is our library for the Adafruit ILI9341 Breakout and Shield
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----> http://www.adafruit.com/products/1651
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Check out the links above for our tutorials and wiring diagrams
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These displays use SPI to communicate, 4 or 5 pins are required to
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interface (RST is optional)
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Adafruit invests time and resources providing this open source code,
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please support Adafruit and open-source hardware by purchasing
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products from Adafruit!
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Written by Limor Fried/Ladyada for Adafruit Industries.
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MIT license, all text above must be included in any redistribution
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****************************************************/
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#ifndef _ILI9341_t3H_
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#define _ILI9341_t3H_
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//#include "Arduino.h"
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#include "stdbool.h"
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#define ILI9341_TFTWIDTH 240
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#define ILI9341_TFTHEIGHT 320
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#define ILI9341_NOP 0x00
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#define ILI9341_SWRESET 0x01
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#define ILI9341_RDDID 0x04
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#define ILI9341_RDDST 0x09
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#define ILI9341_SLPIN 0x10
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#define ILI9341_SLPOUT 0x11
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#define ILI9341_PTLON 0x12
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#define ILI9341_NORON 0x13
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#define ILI9341_RDMODE 0x0A
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#define ILI9341_RDMADCTL 0x0B
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#define ILI9341_RDPIXFMT 0x0C
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#define ILI9341_RDIMGFMT 0x0A
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#define ILI9341_RDSELFDIAG 0x0F
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#define ILI9341_INVOFF 0x20
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#define ILI9341_INVON 0x21
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#define ILI9341_GAMMASET 0x26
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#define ILI9341_DISPOFF 0x28
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#define ILI9341_DISPON 0x29
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#define ILI9341_CASET 0x2A
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#define ILI9341_PASET 0x2B
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#define ILI9341_RAMWR 0x2C
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#define ILI9341_RAMRD 0x2E
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#define ILI9341_PTLAR 0x30
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#define ILI9341_MADCTL 0x36
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#define ILI9341_PIXFMT 0x3A
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#define ILI9341_FRMCTR1 0xB1
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#define ILI9341_FRMCTR2 0xB2
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#define ILI9341_FRMCTR3 0xB3
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#define ILI9341_INVCTR 0xB4
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#define ILI9341_DFUNCTR 0xB6
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#define ILI9341_PWCTR1 0xC0
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#define ILI9341_PWCTR2 0xC1
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#define ILI9341_PWCTR3 0xC2
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#define ILI9341_PWCTR4 0xC3
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#define ILI9341_PWCTR5 0xC4
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#define ILI9341_VMCTR1 0xC5
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#define ILI9341_VMCTR2 0xC7
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#define ILI9341_RDID1 0xDA
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#define ILI9341_RDID2 0xDB
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#define ILI9341_RDID3 0xDC
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#define ILI9341_RDID4 0xDD
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#define ILI9341_GMCTRP1 0xE0
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#define ILI9341_GMCTRN1 0xE1
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/*
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#define ILI9341_PWCTR6 0xFC
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*/
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// Color definitions
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#define ILI9341_BLACK 0x0000
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#define ILI9341_BLUE 0x001F
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#define ILI9341_RED 0xF800
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#define ILI9341_GREEN 0x07E0
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#define ILI9341_CYAN 0x07FF
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#define ILI9341_MAGENTA 0xF81F
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#define ILI9341_YELLOW 0xFFE0
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#define ILI9341_WHITE 0xFFFF
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//class ILI9341_t3 : public Print
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//{
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// public:
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ILI9341_t3(uint8_t _CS, uint8_t _DC, uint8_t _RST = 255);
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void begin(void);
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void pushColor(uint16_t color);
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void fillScreen(uint16_t color);
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void drawPixel(int16_t x, int16_t y, uint16_t color);
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void drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
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void drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
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void fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
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void setRotation(uint8_t r);
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void invertDisplay(bool i);
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void setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1);
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// Pass 8-bit (each) R,G,B, get back 16-bit packed color
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static uint16_t color565(uint8_t r, uint8_t g, uint8_t b) {
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return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3);
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}
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//uint8_t readdata(void);
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uint8_t readcommand8(uint8_t reg, uint8_t index = 0);
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// KJE Added functions to read pixel data...
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uint16_t readPixel(int16_t x, int16_t y);
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// from Adafruit_GFX.h
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void drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
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void drawCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, uint16_t color);
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void fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
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void fillCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, int16_t delta, uint16_t color);
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void drawTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color);
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void fillTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color);
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void drawRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, int16_t radius, uint16_t color);
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void fillRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, int16_t radius, uint16_t color);
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void drawBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t color);
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void drawChar(int16_t x, int16_t y, unsigned char c, uint16_t color, uint16_t bg, uint8_t size);
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void setCursor(int16_t x, int16_t y);
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void setTextColor(uint16_t c);
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void setTextColor(uint16_t c, uint16_t bg);
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void setTextSize(uint8_t s);
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void setTextWrap(bool w);
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virtual size_t write(uint8_t);
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int16_t width(void) { return _width; }
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int16_t height(void) { return _height; }
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uint8_t getRotation(void);
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void drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color);
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void drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
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// protected:
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int16_t
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_width, _height, // Display w/h as modified by current rotation
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cursor_x, cursor_y;
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uint16_t
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textcolor, textbgcolor;
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uint8_t
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textsize,
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rotation;
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bool
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wrap; // If set, 'wrap' text at right edge of display
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// private:
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uint8_t _rst;
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uint8_t _cs, _dc;
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uint8_t pcs_data, pcs_command;
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void setAddr(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1)
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__attribute__((always_inline)) {
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writecommand_cont(ILI9341_CASET); // Column addr set
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writedata16_cont(x0); // XSTART
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writedata16_cont(x1); // XEND
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writecommand_cont(ILI9341_PASET); // Row addr set
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writedata16_cont(y0); // YSTART
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writedata16_cont(y1); // YEND
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}
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//void waitFifoNotFull(void) __attribute__((always_inline)) {
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void waitFifoNotFull(void) {
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uint32_t sr;
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uint32_t tmp __attribute__((unused));
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do {
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sr = SPI0.SR;
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if (sr & 0xF0) tmp = SPI0_POPR; // drain RX FIFO
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} while ((sr & (15 << 12)) > (3 << 12));
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}
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//void waitFifoEmpty(void) __attribute__((always_inline)) {
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void waitFifoEmpty(void) {
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uint32_t sr;
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uint32_t tmp __attribute__((unused));
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do {
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sr = SPI0.SR;
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if (sr & 0xF0) tmp = SPI0_POPR; // drain RX FIFO
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} while ((sr & 0xF0F0) > 0); // wait both RX & TX empty
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}
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void waitTransmitComplete(void) __attribute__((always_inline)) {
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uint32_t tmp __attribute__((unused));
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while (!(SPI0.SR & SPI_SR_TCF)) ; // wait until final output done
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tmp = SPI0_POPR; // drain the final RX FIFO word
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}
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void writecommand_cont(uint8_t c) __attribute__((always_inline)) {
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SPI0.PUSHR = c | (pcs_command << 16) | SPI_PUSHR_CTAS(0) | SPI_PUSHR_CONT;
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waitFifoNotFull();
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}
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void writedata8_cont(uint8_t c) __attribute__((always_inline)) {
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SPI0.PUSHR = c | (pcs_data << 16) | SPI_PUSHR_CTAS(0) | SPI_PUSHR_CONT;
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waitFifoNotFull();
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}
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void writedata16_cont(uint16_t d) __attribute__((always_inline)) {
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SPI0.PUSHR = d | (pcs_data << 16) | SPI_PUSHR_CTAS(1) | SPI_PUSHR_CONT;
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waitFifoNotFull();
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}
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void writecommand_last(uint8_t c) __attribute__((always_inline)) {
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waitFifoEmpty();
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SPI0.SR = SPI_SR_TCF;
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SPI0.PUSHR = c | (pcs_command << 16) | SPI_PUSHR_CTAS(0);
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waitTransmitComplete();
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}
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void writedata8_last(uint8_t c) __attribute__((always_inline)) {
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waitFifoEmpty();
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SPI0.SR = SPI_SR_TCF;
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SPI0.PUSHR = c | (pcs_data << 16) | SPI_PUSHR_CTAS(0);
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waitTransmitComplete();
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}
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void writedata16_last(uint16_t d) __attribute__((always_inline)) {
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waitFifoEmpty();
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SPI0.SR = SPI_SR_TCF;
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SPI0.PUSHR = d | (pcs_data << 16) | SPI_PUSHR_CTAS(1);
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waitTransmitComplete();
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}
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void HLine(int16_t x, int16_t y, int16_t w, uint16_t color)
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__attribute__((always_inline)) {
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setAddr(x, y, x+w-1, y);
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writecommand_cont(ILI9341_RAMWR);
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do { writedata16_cont(color); } while (--w > 0);
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}
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void VLine(int16_t x, int16_t y, int16_t h, uint16_t color)
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__attribute__((always_inline)) {
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setAddr(x, y, x, y+h-1);
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writecommand_cont(ILI9341_RAMWR);
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do { writedata16_cont(color); } while (--h > 0);
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}
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void Pixel(int16_t x, int16_t y, uint16_t color)
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__attribute__((always_inline)) {
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setAddr(x, y, x, y);
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writecommand_cont(ILI9341_RAMWR);
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writedata16_cont(color);
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}
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//};
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#ifndef swap
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#define swap(a, b) { typeof(a) t = a; a = b; b = t; }
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#endif
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#endif
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