MHVLib
20111011
An efficiency oriented runtime library for AVR microcontrollers
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00001 /* 00002 * Copyright (c) 2011, Make, Hack, Void Inc 00003 * All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions are met: 00007 * * Redistributions of source code must retain the above copyright 00008 * notice, this list of conditions and the following disclaimer. 00009 * * Redistributions in binary form must reproduce the above copyright 00010 * notice, this list of conditions and the following disclaimer in the 00011 * documentation and/or other materials provided with the distribution. 00012 * * Neither the name of the Make, Hack, Void nor the 00013 * names of its contributors may be used to endorse or promote products 00014 * derived from this software without specific prior written permission. 00015 * 00016 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 00017 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 00018 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00019 * DISCLAIMED. IN NO EVENT SHALL MAKE, HACK, VOID BE LIABLE FOR ANY 00020 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 00021 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 00022 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00023 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00024 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 00025 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00026 */ 00027 #ifndef MHV_DISPLAY_HD44780_DIRECT_CONNECT_H_ 00028 #define MHV_DISPLAY_HD44780_DIRECT_CONNECT_H_ 00029 00030 #include <MHV_Display_HD44780.h> 00031 00032 class MHV_Display_HD44780_Direct_Connect : public MHV_Display_HD44780 { 00033 protected: 00034 volatile uint8_t *_dataDir; 00035 volatile uint8_t *_dataOut; 00036 volatile uint8_t *_dataIn; 00037 uint8_t _dataPin; 00038 uint8_t _dataMask; 00039 volatile uint8_t *_controlOut; 00040 uint8_t _controlPin; 00041 volatile uint8_t *_visualOut; 00042 uint8_t _visualPin; 00043 00044 uint8_t _brightness; 00045 uint8_t _contrast; 00046 00047 void writeByte(uint8_t byte, bool rs); 00048 void writeNibble(uint8_t nibble, bool rs); 00049 uint8_t readByte(bool rs); 00050 uint8_t readNibble(bool rs); 00051 bool isBusy(); 00052 void delay(MHV_HD44780_COMMAND command); 00053 00054 public: 00055 MHV_Display_HD44780_Direct_Connect(volatile uint8_t *dataDir, volatile uint8_t *dataOut, volatile uint8_t *dataIn, uint8_t dataPin, int8_t dataPinchangeInterrupt, 00056 volatile uint8_t *controlDir, volatile uint8_t *controlOut, volatile uint8_t *controlIn, uint8_t controlPin, int8_t controlPinchangeInterrupt, 00057 volatile uint8_t *visualDir, volatile uint8_t *visualOut, volatile uint8_t *visualIn, uint8_t visualPin, int8_t visualPinchangeInterrupt, 00058 uint8_t colCount, uint16_t rowCount, MHV_RingBuffer *txBuffers); 00059 MHV_Display_HD44780_Direct_Connect(volatile uint8_t *dataDir, volatile uint8_t *dataOut, volatile uint8_t *dataIn, uint8_t dataPin, int8_t dataPinchangeInterrupt, 00060 volatile uint8_t *controlDir, volatile uint8_t *controlOut, volatile uint8_t *controlIn, uint8_t controlPin, int8_t controlPinchangeInterrupt, 00061 uint8_t colCount, uint16_t rowCount, MHV_RingBuffer *txBuffers); 00062 void setBacklight(uint8_t value); 00063 void setContrast(uint8_t value); 00064 void tickPWM(); 00065 void init(bool multiLine, bool bigFont, bool cursorOn, bool cursorBlink, 00066 bool left2right, bool scroll); 00067 }; 00068 00069 #endif /* MHV_DISPLAY_HD44780_DIRECT_CONNECT_H_ */