1 files changed, 85 insertions, 10 deletions

diff --git a/libraries/LiquidCrystal/LiquidCrystal.h b/libraries/LiquidCrystal/LiquidCrystal.h
index a5edc5f..5a8d087 100755
--- a/libraries/LiquidCrystal/LiquidCrystal.h
+++ b/libraries/LiquidCrystal/LiquidCrystal.h
@@ -4,28 +4,103 @@
 #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
+
 class LiquidCrystal : public Print {
 public:
-  LiquidCrystal(uint8_t, uint8_t, uint8_t, uint8_t, uint8_t, uint8_t, uint8_t);
-  LiquidCrystal(uint8_t, uint8_t, uint8_t, uint8_t, uint8_t, uint8_t, uint8_t,
-    uint8_t, uint8_t, uint8_t, uint8_t);
+  LiquidCrystal(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);
+  LiquidCrystal(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);
+  LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable,
+		uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3);
+  LiquidCrystal(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 setCursor(int, int); 
-  /*
-  void shiftDisplayLeft();
-  void shiftDisplayRight();
-  */
+
+  void noDisplay();
+  void display();
+  void noBlink();
+  void blink();
+  void noCursor();
+  void cursor();
+  void scrollDisplayLeft();
+  void scrollDisplayRight();
+  void printLeft();
+  void printRight();
+  void shiftLeft();
+  void shiftRight();
+  void shiftIncrement();
+  void shiftDecrement();
+
+  void createChar(uint8_t, uint8_t[]);
+  void setCursor(uint8_t, uint8_t); 
   virtual void write(uint8_t);
   void command(uint8_t);
 private:
   void send(uint8_t, uint8_t);
-  
-  uint8_t _four_bit_mode;
+  void write4bits(uint8_t);
+  void write8bits(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;
 };
 
 #endif