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diff --git a/libraries/TFT/utility/Adafruit_ST7735.cpp b/libraries/TFT/utility/Adafruit_ST7735.cpp
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-/***************************************************
- This is a library for the Adafruit 1.8" SPI display.
- This library works with the Adafruit 1.8" TFT Breakout w/SD card
- ----> http://www.adafruit.com/products/358
- as well as Adafruit raw 1.8" TFT display
- ----> http://www.adafruit.com/products/618
-
- 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_ST7735.h"
-#include <avr/pgmspace.h>
-#include <limits.h>
-#include "pins_arduino.h"
-#include "wiring_private.h"
-#include <SPI.h>
-
-inline uint16_t swapcolor(uint16_t x) {
- return (x << 11) | (x & 0x07E0) | (x >> 11);
-}
-
-
-// Constructor when using software SPI. All output pins are configurable.
-Adafruit_ST7735::Adafruit_ST7735(uint8_t cs, uint8_t rs, uint8_t sid,
- uint8_t sclk, uint8_t rst) {
- _cs = cs;
- _rs = rs;
- _sid = sid;
- _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_ST7735::Adafruit_ST7735(uint8_t cs, uint8_t rs, uint8_t rst) {
- _cs = cs;
- _rs = rs;
- _rst = rst;
- hwSPI = true;
- _sid = _sclk = 0;
-}
-
-
-inline void Adafruit_ST7735::spiwrite(uint8_t c) {
-
- //Serial.println(c, HEX);
-
- if (hwSPI) {
- SPI.transfer(c);
- } else {
- // Fast SPI bitbang swiped from LPD8806 library
- for(uint8_t bit = 0x80; bit; bit >>= 1) {
- if(c & bit) *dataport |= datapinmask;
- else *dataport &= ~datapinmask;
- *clkport |= clkpinmask;
- *clkport &= ~clkpinmask;
- }
- }
-}
-
-
-void Adafruit_ST7735::writecommand(uint8_t c) {
- *rsport &= ~rspinmask;
- *csport &= ~cspinmask;
-
- //Serial.print("C ");
- spiwrite(c);
-
- *csport |= cspinmask;
-}
-
-
-void Adafruit_ST7735::writedata(uint8_t c) {
- *rsport |= rspinmask;
- *csport &= ~cspinmask;
-
- //Serial.print("D ");
- spiwrite(c);
-
- *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
-PROGMEM static prog_uchar
- Bcmd[] = { // Initialization commands for 7735B screens
- 18, // 18 commands in list:
- ST7735_SWRESET, DELAY, // 1: Software reset, no args, w/delay
- 50, // 50 ms delay
- ST7735_SLPOUT , DELAY, // 2: Out of sleep mode, no args, w/delay
- 255, // 255 = 500 ms delay
- ST7735_COLMOD , 1+DELAY, // 3: Set color mode, 1 arg + delay:
- 0x05, // 16-bit color
- 10, // 10 ms delay
- ST7735_FRMCTR1, 3+DELAY, // 4: Frame rate control, 3 args + delay:
- 0x00, // fastest refresh
- 0x06, // 6 lines front porch
- 0x03, // 3 lines back porch
- 10, // 10 ms delay
- ST7735_MADCTL , 1 , // 5: Memory access ctrl (directions), 1 arg:
- 0x08, // Row addr/col addr, bottom to top refresh
- ST7735_DISSET5, 2 , // 6: Display settings #5, 2 args, no delay:
- 0x15, // 1 clk cycle nonoverlap, 2 cycle gate
- // rise, 3 cycle osc equalize
- 0x02, // Fix on VTL
- ST7735_INVCTR , 1 , // 7: Display inversion control, 1 arg:
- 0x0, // Line inversion
- ST7735_PWCTR1 , 2+DELAY, // 8: Power control, 2 args + delay:
- 0x02, // GVDD = 4.7V
- 0x70, // 1.0uA
- 10, // 10 ms delay
- ST7735_PWCTR2 , 1 , // 9: Power control, 1 arg, no delay:
- 0x05, // VGH = 14.7V, VGL = -7.35V
- ST7735_PWCTR3 , 2 , // 10: Power control, 2 args, no delay:
- 0x01, // Opamp current small
- 0x02, // Boost frequency
- ST7735_VMCTR1 , 2+DELAY, // 11: Power control, 2 args + delay:
- 0x3C, // VCOMH = 4V
- 0x38, // VCOML = -1.1V
- 10, // 10 ms delay
- ST7735_PWCTR6 , 2 , // 12: Power control, 2 args, no delay:
- 0x11, 0x15,
- ST7735_GMCTRP1,16 , // 13: Magical unicorn dust, 16 args, no delay:
- 0x09, 0x16, 0x09, 0x20, // (seriously though, not sure what
- 0x21, 0x1B, 0x13, 0x19, // these config values represent)
- 0x17, 0x15, 0x1E, 0x2B,
- 0x04, 0x05, 0x02, 0x0E,
- ST7735_GMCTRN1,16+DELAY, // 14: Sparkles and rainbows, 16 args + delay:
- 0x0B, 0x14, 0x08, 0x1E, // (ditto)
- 0x22, 0x1D, 0x18, 0x1E,
- 0x1B, 0x1A, 0x24, 0x2B,
- 0x06, 0x06, 0x02, 0x0F,
- 10, // 10 ms delay
- ST7735_CASET , 4 , // 15: Column addr set, 4 args, no delay:
- 0x00, 0x02, // XSTART = 2
- 0x00, 0x81, // XEND = 129
- ST7735_RASET , 4 , // 16: Row addr set, 4 args, no delay:
- 0x00, 0x02, // XSTART = 1
- 0x00, 0x81, // XEND = 160
- ST7735_NORON , DELAY, // 17: Normal display on, no args, w/delay
- 10, // 10 ms delay
- ST7735_DISPON , DELAY, // 18: Main screen turn on, no args, w/delay
- 255 }, // 255 = 500 ms delay
-
- Rcmd1[] = { // Init for 7735R, part 1 (red or green tab)
- 15, // 15 commands in list:
- ST7735_SWRESET, DELAY, // 1: Software reset, 0 args, w/delay
- 150, // 150 ms delay
- ST7735_SLPOUT , DELAY, // 2: Out of sleep mode, 0 args, w/delay
- 255, // 500 ms delay
- ST7735_FRMCTR1, 3 , // 3: Frame rate ctrl - normal mode, 3 args:
- 0x01, 0x2C, 0x2D, // Rate = fosc/(1x2+40) * (LINE+2C+2D)
- ST7735_FRMCTR2, 3 , // 4: Frame rate control - idle mode, 3 args:
- 0x01, 0x2C, 0x2D, // Rate = fosc/(1x2+40) * (LINE+2C+2D)
- ST7735_FRMCTR3, 6 , // 5: Frame rate ctrl - partial mode, 6 args:
- 0x01, 0x2C, 0x2D, // Dot inversion mode
- 0x01, 0x2C, 0x2D, // Line inversion mode
- ST7735_INVCTR , 1 , // 6: Display inversion ctrl, 1 arg, no delay:
- 0x07, // No inversion
- ST7735_PWCTR1 , 3 , // 7: Power control, 3 args, no delay:
- 0xA2,
- 0x02, // -4.6V
- 0x84, // AUTO mode
- ST7735_PWCTR2 , 1 , // 8: Power control, 1 arg, no delay:
- 0xC5, // VGH25 = 2.4C VGSEL = -10 VGH = 3 * AVDD
- ST7735_PWCTR3 , 2 , // 9: Power control, 2 args, no delay:
- 0x0A, // Opamp current small
- 0x00, // Boost frequency
- ST7735_PWCTR4 , 2 , // 10: Power control, 2 args, no delay:
- 0x8A, // BCLK/2, Opamp current small & Medium low
- 0x2A,
- ST7735_PWCTR5 , 2 , // 11: Power control, 2 args, no delay:
- 0x8A, 0xEE,
- ST7735_VMCTR1 , 1 , // 12: Power control, 1 arg, no delay:
- 0x0E,
- ST7735_INVOFF , 0 , // 13: Don't invert display, no args, no delay
- ST7735_MADCTL , 1 , // 14: Memory access control (directions), 1 arg:
- 0xC8, // row addr/col addr, bottom to top refresh
- ST7735_COLMOD , 1 , // 15: set color mode, 1 arg, no delay:
- 0x05 }, // 16-bit color
-
- Rcmd2green[] = { // Init for 7735R, part 2 (green tab only)
- 2, // 2 commands in list:
- ST7735_CASET , 4 , // 1: Column addr set, 4 args, no delay:
- 0x00, 0x02, // XSTART = 0
- 0x00, 0x7F+0x02, // XEND = 127
- ST7735_RASET , 4 , // 2: Row addr set, 4 args, no delay:
- 0x00, 0x01, // XSTART = 0
- 0x00, 0x9F+0x01 }, // XEND = 159
- Rcmd2red[] = { // Init for 7735R, part 2 (red tab only)
- 2, // 2 commands in list:
- ST7735_CASET , 4 , // 1: Column addr set, 4 args, no delay:
- 0x00, 0x00, // XSTART = 0
- 0x00, 0x7F, // XEND = 127
- ST7735_RASET , 4 , // 2: Row addr set, 4 args, no delay:
- 0x00, 0x00, // XSTART = 0
- 0x00, 0x9F }, // XEND = 159
-
- Rcmd3[] = { // Init for 7735R, part 3 (red or green tab)
- 4, // 4 commands in list:
- ST7735_GMCTRP1, 16 , // 1: Magical unicorn dust, 16 args, no delay:
- 0x02, 0x1c, 0x07, 0x12,
- 0x37, 0x32, 0x29, 0x2d,
- 0x29, 0x25, 0x2B, 0x39,
- 0x00, 0x01, 0x03, 0x10,
- ST7735_GMCTRN1, 16 , // 2: Sparkles and rainbows, 16 args, no delay:
- 0x03, 0x1d, 0x07, 0x06,
- 0x2E, 0x2C, 0x29, 0x2D,
- 0x2E, 0x2E, 0x37, 0x3F,
- 0x00, 0x00, 0x02, 0x10,
- ST7735_NORON , DELAY, // 3: Normal display on, no args, w/delay
- 10, // 10 ms delay
- ST7735_DISPON , DELAY, // 4: Main screen turn on, no args w/delay
- 100 }; // 100 ms delay
-
-
-// Companion code to the above tables. Reads and issues
-// a series of LCD commands stored in PROGMEM byte array.
-void Adafruit_ST7735::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);
- }
- }
-}
-
-
-// Initialization code common to both 'B' and 'R' type displays
-void Adafruit_ST7735::commonInit(uint8_t *cmdList) {
-
- constructor(ST7735_TFTWIDTH, ST7735_TFTHEIGHT);
- colstart = rowstart = 0; // May be overridden in init func
-
- pinMode(_rs, OUTPUT);
- pinMode(_cs, OUTPUT);
- csport = portOutputRegister(digitalPinToPort(_cs));
- cspinmask = digitalPinToBitMask(_cs);
- rsport = portOutputRegister(digitalPinToPort(_rs));
- rspinmask = digitalPinToBitMask(_rs);
-
- if(hwSPI) { // Using hardware SPI
- SPI.begin();
-#if defined(ARDUINO_ARCH_SAM)
- SPI.setClockDivider(24); // 4 MHz (half speed)
-#else
- SPI.setClockDivider(SPI_CLOCK_DIV4); // 4 MHz (half speed)
-#endif
- SPI.setBitOrder(MSBFIRST);
- SPI.setDataMode(SPI_MODE0);
- } else {
- pinMode(_sclk, OUTPUT);
- pinMode(_sid , OUTPUT);
- clkport = portOutputRegister(digitalPinToPort(_sclk));
- clkpinmask = digitalPinToBitMask(_sclk);
- dataport = portOutputRegister(digitalPinToPort(_sid));
- datapinmask = digitalPinToBitMask(_sid);
- *clkport &= ~clkpinmask;
- *dataport &= ~datapinmask;
- }
-
- // toggle RST low to reset; CS low so it'll listen to us
- *csport &= ~cspinmask;
- if (_rst) {
- pinMode(_rst, OUTPUT);
- digitalWrite(_rst, HIGH);
- delay(500);
- digitalWrite(_rst, LOW);
- delay(500);
- digitalWrite(_rst, HIGH);
- delay(500);
- }
-
- if(cmdList) commandList(cmdList);
-}
-
-
-// Initialization for ST7735B screens
-void Adafruit_ST7735::initB(void) {
- commonInit(Bcmd);
-}
-
-
-// Initialization for ST7735R screens (green or red tabs)
-void Adafruit_ST7735::initR(uint8_t options) {
- commonInit(Rcmd1);
- if(options == INITR_GREENTAB) {
- commandList(Rcmd2green);
- colstart = 2;
- rowstart = 1;
- } else {
- // colstart, rowstart left at default '0' values
- commandList(Rcmd2red);
- }
- commandList(Rcmd3);
- tabcolor = options;
-}
-
-
-void Adafruit_ST7735::setAddrWindow(uint8_t x0, uint8_t y0, uint8_t x1,
- uint8_t y1) {
-
- writecommand(ST7735_CASET); // Column addr set
- writedata(0x00);
- writedata(x0+colstart); // XSTART
- writedata(0x00);
- writedata(x1+colstart); // XEND
-
- writecommand(ST7735_RASET); // Row addr set
- writedata(0x00);
- writedata(y0+rowstart); // YSTART
- writedata(0x00);
- writedata(y1+rowstart); // YEND
-
- writecommand(ST7735_RAMWR); // write to RAM
-}
-
-
-void Adafruit_ST7735::pushColor(uint16_t color) {
- *rsport |= rspinmask;
- *csport &= ~cspinmask;
-
- if (tabcolor == INITR_BLACKTAB) color = swapcolor(color);
- spiwrite(color >> 8);
- spiwrite(color);
-
- *csport |= cspinmask;
-}
-
-void Adafruit_ST7735::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);
-
- *rsport |= rspinmask;
- *csport &= ~cspinmask;
-
- if (tabcolor == INITR_BLACKTAB) color = swapcolor(color);
-
- spiwrite(color >> 8);
- spiwrite(color);
-
- *csport |= cspinmask;
-}
-
-
-void Adafruit_ST7735::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);
-
- if (tabcolor == INITR_BLACKTAB) color = swapcolor(color);
-
- uint8_t hi = color >> 8, lo = color;
- *rsport |= rspinmask;
- *csport &= ~cspinmask;
- while (h--) {
- spiwrite(hi);
- spiwrite(lo);
- }
- *csport |= cspinmask;
-}
-
-
-void Adafruit_ST7735::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);
-
- if (tabcolor == INITR_BLACKTAB) color = swapcolor(color);
-
- uint8_t hi = color >> 8, lo = color;
- *rsport |= rspinmask;
- *csport &= ~cspinmask;
- while (w--) {
- spiwrite(hi);
- spiwrite(lo);
- }
- *csport |= cspinmask;
-}
-
-
-
-void Adafruit_ST7735::fillScreen(uint16_t color) {
- fillRect(0, 0, _width, _height, color);
-}
-
-
-
-// fill a rectangle
-void Adafruit_ST7735::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 (tabcolor == INITR_BLACKTAB) color = swapcolor(color);
-
- setAddrWindow(x, y, x+w-1, y+h-1);
-
- uint8_t hi = color >> 8, lo = color;
- *rsport |= rspinmask;
- *csport &= ~cspinmask;
- for(y=h; y>0; y--) {
- for(x=w; x>0; x--) {
- spiwrite(hi);
- spiwrite(lo);
- }
- }
-
- *csport |= cspinmask;
-}
-
-
-#define MADCTL_MY 0x80
-#define MADCTL_MX 0x40
-#define MADCTL_MV 0x20
-#define MADCTL_ML 0x10
-#define MADCTL_RGB 0x08
-#define MADCTL_MH 0x04
-
-void Adafruit_ST7735::setRotation(uint8_t m) {
-
- writecommand(ST7735_MADCTL);
- rotation = m % 4; // can't be higher than 3
- switch (rotation) {
- case 0:
- writedata(MADCTL_MX | MADCTL_MY | MADCTL_RGB);
- _width = ST7735_TFTWIDTH;
- _height = ST7735_TFTHEIGHT;
- break;
- case 1:
- writedata(MADCTL_MY | MADCTL_MV | MADCTL_RGB);
- _width = ST7735_TFTHEIGHT;
- _height = ST7735_TFTWIDTH;
- break;
- case 2:
- writedata(MADCTL_RGB);
- _width = ST7735_TFTWIDTH;
- _height = ST7735_TFTHEIGHT;
- break;
- case 3:
- writedata(MADCTL_MX | MADCTL_MV | MADCTL_RGB);
- _width = ST7735_TFTHEIGHT;
- _height = ST7735_TFTWIDTH;
- break;
- }
-}
-
-
-void Adafruit_ST7735::invertDisplay(boolean i) {
- writecommand(i ? ST7735_INVON : ST7735_INVOFF);
-}
-
-
-////////// stuff not actively being used, but kept for posterity
-/*
-
- uint8_t Adafruit_ST7735::spiread(void) {
- uint8_t r = 0;
- if (_sid > 0) {
- r = shiftIn(_sid, _sclk, MSBFIRST);
- } else {
- //SID_DDR &= ~_BV(SID);
- //int8_t i;
- //for (i=7; i>=0; i--) {
- // SCLK_PORT &= ~_BV(SCLK);
- // r <<= 1;
- // r |= (SID_PIN >> SID) & 0x1;
- // SCLK_PORT |= _BV(SCLK);
- //}
- //SID_DDR |= _BV(SID);
-
- }
- return r;
- }
-
-
- void Adafruit_ST7735::dummyclock(void) {
-
- if (_sid > 0) {
- digitalWrite(_sclk, LOW);
- digitalWrite(_sclk, HIGH);
- } else {
- // SCLK_PORT &= ~_BV(SCLK);
- //SCLK_PORT |= _BV(SCLK);
- }
- }
- uint8_t Adafruit_ST7735::readdata(void) {
- *portOutputRegister(rsport) |= rspin;
-
- *portOutputRegister(csport) &= ~ cspin;
-
- uint8_t r = spiread();
-
- *portOutputRegister(csport) |= cspin;
-
- return r;
-
- }
-
- uint8_t Adafruit_ST7735::readcommand8(uint8_t c) {
- digitalWrite(_rs, LOW);
-
- *portOutputRegister(csport) &= ~ cspin;
-
- spiwrite(c);
-
- digitalWrite(_rs, HIGH);
- pinMode(_sid, INPUT); // input!
- digitalWrite(_sid, LOW); // low
- spiread();
- uint8_t r = spiread();
-
-
- *portOutputRegister(csport) |= cspin;
-
-
- pinMode(_sid, OUTPUT); // back to output
- return r;
- }
-
-
- uint16_t Adafruit_ST7735::readcommand16(uint8_t c) {
- digitalWrite(_rs, 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_ST7735::readcommand32(uint8_t c) {
- digitalWrite(_rs, 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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