| /* |
| * 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 size_t 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 |