/* | |
* Copyright 2009-2011 Oleg Mazurov, Circuits At Home, http://www.circuitsathome.com | |
* MAX3421E USB host controller support | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* 3. Neither the name of the authors nor the names of its contributors | |
* may be used to endorse or promote products derived from this software | |
* without specific prior written permission. | |
* | |
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
* SUCH DAMAGE. | |
*/ | |
//HD44780 compatible LCD display via MAX3421E GPOUT support header | |
//pinout: D[4-7] -> GPOUT[4-7], RS-> GPOUT[2], E ->GPOUT[3] | |
// | |
//this code is heavily borrowed from official Arduino source v.0017 | |
// link to original http://code.google.com/p/arduino/source/browse/trunk/hardware/libraries/LiquidCrystal/LiquidCrystal.h | |
// | |
#ifndef _Max_LCD_h_ | |
#define _Max_LCD_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 | |
class Max_LCD : public Print { | |
public: | |
Max_LCD(); | |
void init(); | |
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); | |
virtual void write(uint8_t); | |
void command(uint8_t); | |
private: | |
void sendbyte( uint8_t val ); | |
uint8_t _displayfunction; //tokill | |
uint8_t _displaycontrol; | |
uint8_t _displaymode; | |
uint8_t _initialized; | |
uint8_t _numlines,_currline; | |
}; | |
#endif |