Erik Gilling | 8a71565 | 2011-03-22 14:00:56 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2009-2011 Oleg Mazurov, Circuits At Home, http://www.circuitsathome.com |
| 3 | * MAX3421E USB host controller support |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * 1. Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in the |
| 12 | * documentation and/or other materials provided with the distribution. |
| 13 | * 3. Neither the name of the authors nor the names of its contributors |
| 14 | * may be used to endorse or promote products derived from this software |
| 15 | * without specific prior written permission. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 27 | * SUCH DAMAGE. |
| 28 | */ |
Joe Fernandez | abc5159 | 2012-05-21 11:49:55 -0700 | [diff] [blame] | 29 | |
| 30 | //HD44780 compatible LCD display via MAX3421E GPOUT support header |
| 31 | //pinout: D[4-7] -> GPOUT[4-7], RS-> GPOUT[2], E ->GPOUT[3] |
| 32 | // |
| 33 | //this code is heavily borrowed from official Arduino source v.0017 |
| 34 | // link to original http://code.google.com/p/arduino/source/browse/trunk/hardware/libraries/LiquidCrystal/LiquidCrystal.h |
| 35 | // |
| 36 | #ifndef _Max_LCD_h_ |
| 37 | #define _Max_LCD_h_ |
| 38 | |
| 39 | #include <inttypes.h> |
| 40 | #include "Print.h" |
| 41 | |
| 42 | // commands |
| 43 | #define LCD_CLEARDISPLAY 0x01 |
| 44 | #define LCD_RETURNHOME 0x02 |
| 45 | #define LCD_ENTRYMODESET 0x04 |
| 46 | #define LCD_DISPLAYCONTROL 0x08 |
| 47 | #define LCD_CURSORSHIFT 0x10 |
| 48 | #define LCD_FUNCTIONSET 0x20 |
| 49 | #define LCD_SETCGRAMADDR 0x40 |
| 50 | #define LCD_SETDDRAMADDR 0x80 |
| 51 | |
| 52 | // flags for display entry mode |
| 53 | #define LCD_ENTRYRIGHT 0x00 |
| 54 | #define LCD_ENTRYLEFT 0x02 |
| 55 | #define LCD_ENTRYSHIFTINCREMENT 0x01 |
| 56 | #define LCD_ENTRYSHIFTDECREMENT 0x00 |
| 57 | |
| 58 | // flags for display on/off control |
| 59 | #define LCD_DISPLAYON 0x04 |
| 60 | #define LCD_DISPLAYOFF 0x00 |
| 61 | #define LCD_CURSORON 0x02 |
| 62 | #define LCD_CURSOROFF 0x00 |
| 63 | #define LCD_BLINKON 0x01 |
| 64 | #define LCD_BLINKOFF 0x00 |
| 65 | |
| 66 | // flags for display/cursor shift |
| 67 | #define LCD_DISPLAYMOVE 0x08 |
| 68 | #define LCD_CURSORMOVE 0x00 |
| 69 | #define LCD_MOVERIGHT 0x04 |
| 70 | #define LCD_MOVELEFT 0x00 |
| 71 | |
| 72 | // flags for function set |
| 73 | #define LCD_8BITMODE 0x10 |
| 74 | #define LCD_4BITMODE 0x00 |
| 75 | #define LCD_2LINE 0x08 |
| 76 | #define LCD_1LINE 0x00 |
| 77 | #define LCD_5x10DOTS 0x04 |
| 78 | #define LCD_5x8DOTS 0x00 |
| 79 | |
| 80 | class Max_LCD : public Print { |
| 81 | public: |
| 82 | Max_LCD(); |
| 83 | void init(); |
| 84 | void begin(uint8_t cols, uint8_t rows, uint8_t charsize = LCD_5x8DOTS); |
| 85 | void clear(); |
| 86 | void home(); |
| 87 | void noDisplay(); |
| 88 | void display(); |
| 89 | void noBlink(); |
| 90 | void blink(); |
| 91 | void noCursor(); |
| 92 | void cursor(); |
| 93 | void scrollDisplayLeft(); |
| 94 | void scrollDisplayRight(); |
| 95 | void leftToRight(); |
| 96 | void rightToLeft(); |
| 97 | void autoscroll(); |
| 98 | void noAutoscroll(); |
| 99 | void createChar(uint8_t, uint8_t[]); |
| 100 | void setCursor(uint8_t, uint8_t); |
| 101 | virtual size_t write(uint8_t); |
| 102 | void command(uint8_t); |
| 103 | private: |
| 104 | void sendbyte( uint8_t val ); |
| 105 | uint8_t _displayfunction; //tokill |
| 106 | uint8_t _displaycontrol; |
| 107 | uint8_t _displaymode; |
| 108 | uint8_t _initialized; |
| 109 | uint8_t _numlines,_currline; |
| 110 | }; |
| 111 | |
| 112 | |
| 113 | |
| 114 | |
Erik Gilling | 8a71565 | 2011-03-22 14:00:56 -0700 | [diff] [blame] | 115 | #endif |