Enables support the Cyrillic alphabet for LCD

Marlin/LiquidCrystalRus.cpp

+#include "LiquidCrystalRus.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <inttypes.h>
+#include <avr/pgmspace.h>
+
+#if defined(ARDUINO) && ARDUINO >= 100
+  #include "Arduino.h"
+#else
+  #include "WProgram.h"
+#endif
+
+// it is a russian alphabet translation
+// except 0401 --> 0xa2 = ╗, 0451 --> 0xb5
+PROGMEM prog_uchar utf_recode[] = 
+       { 0x41,0xa0,0x42,0xa1,0xe0,0x45,0xa3,0xa4,0xa5,0xa6,0x4b,0xa7,0x4d,0x48,0x4f,
+         0xa8,0x50,0x43,0x54,0xa9,0xaa,0x58,0xe1,0xab,0xac,0xe2,0xad,0xae,0x62,0xaf,0xb0,0xb1,
+         0x61,0xb2,0xb3,0xb4,0xe3,0x65,0xb6,0xb7,0xb8,0xb9,0xba,0xbb,0xbc,0xbd,0x6f,
+         0xbe,0x70,0x63,0xbf,0x79,0xe4,0x78,0xe5,0xc0,0xc1,0xe6,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7
+        };     
+
+// When the display powers up, it is configured as follows:
+//
+// 1. Display clear
+// 2. Function set: 
+//    DL = 1; 8-bit interface data 
+//    N = 0; 1-line display 
+//    F = 0; 5x8 dot character font 
+// 3. Display on/off control: 
+//    D = 0; Display off 
+//    C = 0; Cursor off 
+//    B = 0; Blinking off 
+// 4. Entry mode set: 
+//    I/D = 1; Increment by 1 
+//    S = 0; No shift 
+//
+// Note, however, that resetting the Arduino doesn't reset the LCD, so we
+// can't assume that its in that state when a sketch starts (and the
+// LiquidCrystal constructor is called).
+// 
+// modified 27 Jul 2011
+// by Ilya V. Danilov http://mk90.ru/
+
+
+LiquidCrystalRus::LiquidCrystalRus(uint8_t rs, uint8_t rw, uint8_t enable,
+			     uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3,
+			     uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7)
+{
+  init(0, rs, rw, enable, d0, d1, d2, d3, d4, d5, d6, d7);
+}
+
+LiquidCrystalRus::LiquidCrystalRus(uint8_t rs, uint8_t enable,
+			     uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3,
+			     uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7)
+{
+  init(0, rs, 255, enable, d0, d1, d2, d3, d4, d5, d6, d7);
+}
+
+LiquidCrystalRus::LiquidCrystalRus(uint8_t rs, uint8_t rw, uint8_t enable,
+			     uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3)
+{
+  init(1, rs, rw, enable, d0, d1, d2, d3, 0, 0, 0, 0);
+}
+
+LiquidCrystalRus::LiquidCrystalRus(uint8_t rs,  uint8_t enable,
+			     uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3)
+{
+  init(1, rs, 255, enable, d0, d1, d2, d3, 0, 0, 0, 0);
+}
+
+void LiquidCrystalRus::init(uint8_t fourbitmode, uint8_t rs, uint8_t rw, uint8_t enable,
+			 uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3,
+			 uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7)
+{
+  _rs_pin = rs;
+  _rw_pin = rw;
+  _enable_pin = enable;
+  
+  _data_pins[0] = d0;
+  _data_pins[1] = d1;
+  _data_pins[2] = d2;
+  _data_pins[3] = d3; 
+  _data_pins[4] = d4;
+  _data_pins[5] = d5;
+  _data_pins[6] = d6;
+  _data_pins[7] = d7; 
+
+  pinMode(_rs_pin, OUTPUT);
+  // we can save 1 pin by not using RW. Indicate by passing 255 instead of pin#
+  if (_rw_pin != 255) { 
+    pinMode(_rw_pin, OUTPUT);
+  }
+  pinMode(_enable_pin, OUTPUT);
+  
+  if (fourbitmode)
+    _displayfunction = LCD_4BITMODE | LCD_1LINE | LCD_5x8DOTS;
+  else 
+    _displayfunction = LCD_8BITMODE | LCD_1LINE | LCD_5x8DOTS;
+  
+  begin(16, 1);  
+}
+
+void LiquidCrystalRus::begin(uint8_t cols, uint8_t lines, uint8_t dotsize) {
+  if (lines > 1) {
+    _displayfunction |= LCD_2LINE;
+  }
+  _numlines = lines;
+  _currline = 0;
+
+  // for some 1 line displays you can select a 10 pixel high font
+  if ((dotsize != 0) && (lines == 1)) {
+    _displayfunction |= LCD_5x10DOTS;
+  }
+
+  // SEE PAGE 45/46 FOR INITIALIZATION SPECIFICATION!
+  // according to datasheet, we need at least 40ms after power rises above 2.7V
+  // before sending commands. Arduino can turn on way befer 4.5V so we'll wait 50
+  delayMicroseconds(50000); 
+  // Now we pull both RS and R/W low to begin commands
+  digitalWrite(_rs_pin, LOW);
+  digitalWrite(_enable_pin, LOW);
+  if (_rw_pin != 255) { 
+    digitalWrite(_rw_pin, LOW);
+  }
+  
+  //put the LCD into 4 bit or 8 bit mode
+  if (! (_displayfunction & LCD_8BITMODE)) {
+    // this is according to the hitachi HD44780 datasheet
+    // figure 24, pg 46
+
+    // we start in 8bit mode, try to set 4 bit mode
+    writeNbits(0x03,4);
+    delayMicroseconds(4500); // wait min 4.1ms
+
+    // second try
+    writeNbits(0x03,4);
+    delayMicroseconds(4500); // wait min 4.1ms
+    
+    // third go!
+    writeNbits(0x03,4); 
+    delayMicroseconds(150);
+
+    // finally, set to 8-bit interface
+    writeNbits(0x02,4); 
+  } else {
+    // this is according to the hitachi HD44780 datasheet
+    // page 45 figure 23
+
+    // Send function set command sequence
+    command(LCD_FUNCTIONSET | _displayfunction);
+    delayMicroseconds(4500);  // wait more than 4.1ms
+
+    // second try
+    command(LCD_FUNCTIONSET | _displayfunction);
+    delayMicroseconds(150);
+
+    // third go
+    command(LCD_FUNCTIONSET | _displayfunction);
+  }
+
+  // finally, set # lines, font size, etc.
+  command(LCD_FUNCTIONSET | _displayfunction);  
+
+  // turn the display on with no cursor or blinking default
+  _displaycontrol = LCD_DISPLAYON | LCD_CURSOROFF | LCD_BLINKOFF;  
+  display();
+
+  // clear it off
+  clear();
+
+  // Initialize to default text direction (for romance languages)
+  _displaymode = LCD_ENTRYLEFT | LCD_ENTRYSHIFTDECREMENT;
+  // set the entry mode
+  command(LCD_ENTRYMODESET | _displaymode);
+
+}
+
+void LiquidCrystalRus::setDRAMModel(uint8_t model) {
+  _dram_model = model;
+}
+
+/********** high level commands, for the user! */
+void LiquidCrystalRus::clear()
+{
+  command(LCD_CLEARDISPLAY);  // clear display, set cursor position to zero
+  delayMicroseconds(2000);  // this command takes a long time!
+}
+
+void LiquidCrystalRus::home()
+{
+  command(LCD_RETURNHOME);  // set cursor position to zero
+  delayMicroseconds(2000);  // this command takes a long time!
+}
+
+void LiquidCrystalRus::setCursor(uint8_t col, uint8_t row)
+{
+  int row_offsets[] = { 0x00, 0x40, 0x14, 0x54 };
+  if ( row >= _numlines ) {
+    row = _numlines-1;    // we count rows starting w/0
+  }
+  
+  command(LCD_SETDDRAMADDR | (col + row_offsets[row]));
+}
+
+// Turn the display on/off (quickly)
+void LiquidCrystalRus::noDisplay() {
+  _displaycontrol &= ~LCD_DISPLAYON;
+  command(LCD_DISPLAYCONTROL | _displaycontrol);
+}
+void LiquidCrystalRus::display() {
+  _displaycontrol |= LCD_DISPLAYON;
+  command(LCD_DISPLAYCONTROL | _displaycontrol);
+}
+
+// Turns the underline cursor on/off
+void LiquidCrystalRus::noCursor() {
+  _displaycontrol &= ~LCD_CURSORON;
+  command(LCD_DISPLAYCONTROL | _displaycontrol);
+}
+void LiquidCrystalRus::cursor() {
+  _displaycontrol |= LCD_CURSORON;
+  command(LCD_DISPLAYCONTROL | _displaycontrol);
+}
+
+// Turn on and off the blinking cursor
+void LiquidCrystalRus::noBlink() {
+  _displaycontrol &= ~LCD_BLINKON;
+  command(LCD_DISPLAYCONTROL | _displaycontrol);
+}
+void LiquidCrystalRus::blink() {
+  _displaycontrol |= LCD_BLINKON;
+  command(LCD_DISPLAYCONTROL | _displaycontrol);
+}
+
+// These commands scroll the display without changing the RAM
+void LiquidCrystalRus::scrollDisplayLeft(void) {
+  command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVELEFT);
+}
+void LiquidCrystalRus::scrollDisplayRight(void) {
+  command(LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVERIGHT);
+}
+
+// This is for text that flows Left to Right
+void LiquidCrystalRus::leftToRight(void) {
+  _displaymode |= LCD_ENTRYLEFT;
+  command(LCD_ENTRYMODESET | _displaymode);
+}
+
+// This is for text that flows Right to Left
+void LiquidCrystalRus::rightToLeft(void) {
+  _displaymode &= ~LCD_ENTRYLEFT;
+  command(LCD_ENTRYMODESET | _displaymode);
+}
+
+// This will 'right justify' text from the cursor
+void LiquidCrystalRus::autoscroll(void) {
+  _displaymode |= LCD_ENTRYSHIFTINCREMENT;
+  command(LCD_ENTRYMODESET | _displaymode);
+}
+
+// This will 'left justify' text from the cursor
+void LiquidCrystalRus::noAutoscroll(void) {
+  _displaymode &= ~LCD_ENTRYSHIFTINCREMENT;
+  command(LCD_ENTRYMODESET | _displaymode);
+}
+
+// Allows us to fill the first 8 CGRAM locations
+// with custom characters
+void LiquidCrystalRus::createChar(uint8_t location, uint8_t charmap[]) {
+  location &= 0x7; // we only have 8 locations 0-7
+  command(LCD_SETCGRAMADDR | (location << 3));
+  for (int i=0; i<8; i++) {
+    write(charmap[i]);
+  }
+}
+
+/*********** mid level commands, for sending data/cmds */
+
+inline void LiquidCrystalRus::command(uint8_t value) {
+  send(value, LOW);
+}
+
+#if defined(ARDUINO) && ARDUINO >= 100
+  size_t LiquidCrystalRus::write(uint8_t value)
+#else
+  void   LiquidCrystalRus::write(uint8_t value)
+#endif
+{
+  uint8_t out_char=value;
+
+  if (_dram_model == LCD_DRAM_WH1601) {  
+    uint8_t ac=recv(LOW) & 0x7f;
+    if (ac>7 && ac<0x14) command(LCD_SETDDRAMADDR | (0x40+ac-8));
+  }
+
+  if (value>=0x80) { // UTF-8 handling
+    if (value >= 0xc0) {
+      utf_hi_char = value - 0xd0;
+    } else {
+      value &= 0x3f;
+      if (!utf_hi_char && (value == 1)) 
+        send(0xa2,HIGH); // ╗
+      else if ((utf_hi_char == 1) && (value == 0x11)) 
+        send(0xb5,HIGH); // ╦
+      else 
+        send(pgm_read_byte_near(utf_recode + value + (utf_hi_char<<6) - 0x10), HIGH);
+    }    
+  } else send(out_char, HIGH);
+#if defined(ARDUINO) && ARDUINO >= 100
+  return 1; // assume sucess 
+#endif
+}
+
+/************ low level data pushing commands **********/
+
+// write either command or data, with automatic 4/8-bit selection
+void LiquidCrystalRus::send(uint8_t value, uint8_t mode) {
+  digitalWrite(_rs_pin, mode);
+
+  // if there is a RW pin indicated, set it low to Write
+  if (_rw_pin != 255) { 
+    digitalWrite(_rw_pin, LOW);
+  }
+  
+  if (_displayfunction & LCD_8BITMODE) {
+    writeNbits(value,8); 
+  } else {
+    writeNbits(value>>4,4);
+    writeNbits(value,4);
+  }
+}
+
+// read  data, with automatic 4/8-bit selection
+uint8_t LiquidCrystalRus::recv(uint8_t mode) {
+  uint8_t retval;
+  digitalWrite(_rs_pin, mode);
+
+  // if there is a RW pin indicated, set it low to Write
+  if (_rw_pin != 255) { 
+    digitalWrite(_rw_pin, HIGH);
+  }
+  
+  if (_displayfunction & LCD_8BITMODE) {
+    retval = readNbits(8); 
+  } else {
+    retval = readNbits(4) << 4;
+    retval |= readNbits(4);
+  }
+  return retval;
+}
+void LiquidCrystalRus::pulseEnable() {
+  digitalWrite(_enable_pin, LOW);
+  delayMicroseconds(1);    
+  digitalWrite(_enable_pin, HIGH);
+  delayMicroseconds(1);    // enable pulse must be >450ns
+  digitalWrite(_enable_pin, LOW);
+  delayMicroseconds(100);   // commands need > 37us to settle
+}
+
+void LiquidCrystalRus::writeNbits(uint8_t value, uint8_t n) {
+  for (int i = 0; i < n; i++) {
+    pinMode(_data_pins[i], OUTPUT);
+    digitalWrite(_data_pins[i], (value >> i) & 0x01);
+  }
+
+  pulseEnable();
+}
+
+uint8_t LiquidCrystalRus::readNbits(uint8_t n) {
+  uint8_t retval=0;
+  for (int i = 0; i < n; i++) {
+    pinMode(_data_pins[i], INPUT);
+  }
+
+  digitalWrite(_enable_pin, LOW);
+  delayMicroseconds(1);    
+  digitalWrite(_enable_pin, HIGH);
+  delayMicroseconds(1);    // enable pulse must be >450ns
+  
+  for (int i = 0; i < n; i++) {
+    retval |= (digitalRead(_data_pins[i]) == HIGH)?(1 << i):0;
+  }
+
+  digitalWrite(_enable_pin, LOW);
+
+  return retval;
+}
+

Marlin/LiquidCrystalRus.h

+//
+// based on LiquidCrystal library from ArduinoIDE, see http://arduino.cc
+//  modified 27 Jul 2011
+// by Ilya V. Danilov http://mk90.ru/
+// 
+
+#ifndef LiquidCrystalRus_h
+#define LiquidCrystalRus_h
+
+#include <inttypes.h>
+#include "Print.h"
+
+// commands
+#define LCD_CLEARDISPLAY 0x01
+#define LCD_RETURNHOME 0x02
+#define LCD_ENTRYMODESET 0x04
+#define LCD_DISPLAYCONTROL 0x08
+#define LCD_CURSORSHIFT 0x10
+#define LCD_FUNCTIONSET 0x20
+#define LCD_SETCGRAMADDR 0x40
+#define LCD_SETDDRAMADDR 0x80
+
+// flags for display entry mode
+#define LCD_ENTRYRIGHT 0x00
+#define LCD_ENTRYLEFT 0x02
+#define LCD_ENTRYSHIFTINCREMENT 0x01
+#define LCD_ENTRYSHIFTDECREMENT 0x00
+
+// flags for display on/off control
+#define LCD_DISPLAYON 0x04
+#define LCD_DISPLAYOFF 0x00
+#define LCD_CURSORON 0x02
+#define LCD_CURSOROFF 0x00
+#define LCD_BLINKON 0x01
+#define LCD_BLINKOFF 0x00
+
+// flags for display/cursor shift
+#define LCD_DISPLAYMOVE 0x08
+#define LCD_CURSORMOVE 0x00
+#define LCD_MOVERIGHT 0x04
+#define LCD_MOVELEFT 0x00
+
+// flags for function set
+#define LCD_8BITMODE 0x10
+#define LCD_4BITMODE 0x00
+#define LCD_2LINE 0x08
+#define LCD_1LINE 0x00
+#define LCD_5x10DOTS 0x04
+#define LCD_5x8DOTS 0x00
+
+// enum for 
+#define LCD_DRAM_Normal 0x00
+#define LCD_DRAM_WH1601 0x01
+
+
+class LiquidCrystalRus : public Print {
+public:
+  LiquidCrystalRus(uint8_t rs, uint8_t enable,
+		uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3,
+		uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7);
+  LiquidCrystalRus(uint8_t rs, uint8_t rw, uint8_t enable,
+		uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3,
+		uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7);
+  LiquidCrystalRus(uint8_t rs, uint8_t rw, uint8_t enable,
+		uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3);
+  LiquidCrystalRus(uint8_t rs, uint8_t enable,
+		uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3);
+
+  void init(uint8_t fourbitmode, uint8_t rs, uint8_t rw, uint8_t enable,
+	    uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3,
+	    uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7);
+    
+  void begin(uint8_t cols, uint8_t rows, uint8_t charsize = LCD_5x8DOTS);
+
+  void clear();
+  void home();
+
+  void noDisplay();
+  void display();
+  void noBlink();
+  void blink();
+  void noCursor();
+  void cursor();
+  void scrollDisplayLeft();
+  void scrollDisplayRight();
+  void leftToRight();
+  void rightToLeft();
+  void autoscroll();
+  void noAutoscroll();
+
+  void createChar(uint8_t, uint8_t[]);
+  void setCursor(uint8_t, uint8_t);
+ 
+#if defined(ARDUINO) && ARDUINO >= 100
+  virtual size_t write(uint8_t);
+  using Print::write;
+#else
+  virtual void write(uint8_t);
+#endif
+
+  void command(uint8_t);
+
+  void setDRAMModel(uint8_t);
+
+private:
+  void send(uint8_t, uint8_t);
+  void writeNbits(uint8_t, uint8_t);
+  uint8_t recv(uint8_t);
+  uint8_t readNbits(uint8_t); 
+  void pulseEnable();
+
+  uint8_t _rs_pin; // LOW: command.  HIGH: character.
+  uint8_t _rw_pin; // LOW: write to LCD.  HIGH: read from LCD.
+  uint8_t _enable_pin; // activated by a HIGH pulse.
+  uint8_t _data_pins[8];
+
+  uint8_t _displayfunction;
+  uint8_t _displaycontrol;
+  uint8_t _displaymode;
+
+  uint8_t _initialized;
+
+  uint8_t _numlines,_currline;
+
+  uint8_t _dram_model;
+  uint8_t utf_hi_char; // UTF-8 high part
+};
+
+#endif

Marlin/ultralcd.h

 #define ULTRALCD_H
 #include "Marlin.h"
 #ifdef ULTRA_LCD
-  #include <LiquidCrystal.h>
+#if LANGUAGE_CHOICE == 6
+#include "LiquidCrystalRus.h"
+#else
+#include <LiquidCrystal.h>
+#endif
   void lcd_status();
   void lcd_init();
   void lcd_status(const char* message);
 
   #define LCD_UPDATE_INTERVAL 100
   #define STATUSTIMEOUT 15000
+#if LANGUAGE_CHOICE == 6
+  extern LiquidCrystalRus lcd;
+#else
   extern LiquidCrystal lcd;
+#endif
   extern volatile char buttons;  //the last checked buttons in a bit array.
   
   #ifdef NEWPANEL

Marlin/ultralcd.pde

 #include "language.h"
 #include "temperature.h"
 #include "EEPROMwrite.h"
+#if LANGUAGE_CHOICE == 6
+#include "LiquidCrystalRus.h"
+#else
 #include <LiquidCrystal.h>
+#endif
 //===========================================================================
 //=============================imported variables============================
 //===========================================================================
 //return for string conversion routines
 static char conv[8];
 
+#if LANGUAGE_CHOICE == 6
+LiquidCrystalRus lcd(LCD_PINS_RS, LCD_PINS_ENABLE, LCD_PINS_D4, LCD_PINS_D5,LCD_PINS_D6,LCD_PINS_D7);  //RS,Enable,D4,D5,D6,D7
+#else
 LiquidCrystal lcd(LCD_PINS_RS, LCD_PINS_ENABLE, LCD_PINS_D4, LCD_PINS_D5,LCD_PINS_D6,LCD_PINS_D7);  //RS,Enable,D4,D5,D6,D7 
+#elseif
 
 static unsigned long previous_millis_lcd=0;
 //static long previous_millis_buttons=0;