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479a9553f6
This keeps the constants in the correct scope and avoid potential naming conflicts with other files. Signed-off-by: Wouter van Verre <wouter.van.verre@intel.com> Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
105 lines
3.2 KiB
C++
105 lines
3.2 KiB
C++
/*
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* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
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* Copyright (c) 2014 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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#include <string>
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#include <mraa/i2c.hpp>
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namespace upm
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{
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// commands
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const uint8_t LCD_CLEARDISPLAY = 0x01;
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const uint8_t LCD_RETURNHOME = 0x02;
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const uint8_t LCD_ENTRYMODESET = 0x04;
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const uint8_t LCD_DISPLAYCONTROL = 0x08;
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const uint8_t LCD_CURSORSHIFT = 0x10;
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const uint8_t LCD_FUNCTIONSET = 0x20;
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const uint8_t LCD_DATA = 0x40;
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const uint8_t LCD_CMD = 0x80;
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const uint8_t LCD_BACKLIGHT = 0x08;
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const uint8_t LCD_NOBACKLIGHT = 0x00;
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// flags for display entry mode
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const uint8_t LCD_ENTRYRIGHT = 0x00;
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const uint8_t LCD_ENTRYLEFT = 0x02;
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const uint8_t LCD_ENTRYSHIFTINCREMENT = 0x01;
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const uint8_t LCD_ENTRYSHIFTDECREMENT = 0x00;
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// flags for display on/off control
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const uint8_t LCD_DISPLAYON = 0x04;
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const uint8_t LCD_DISPLAYOFF = 0x00;
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const uint8_t LCD_CURSORON = 0x02;
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const uint8_t LCD_CURSOROFF = 0x00;
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const uint8_t LCD_BLINKON = 0x01;
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const uint8_t LCD_BLINKOFF = 0x00;
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// flags for display/cursor shift
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const uint8_t LCD_DISPLAYMOVE = 0x08;
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const uint8_t LCD_MOVERIGHT = 0x04;
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const uint8_t LCD_MOVELEFT = 0x00;
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// flags for function set
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const uint8_t LCD_8BITMODE = 0x10;
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const uint8_t LCD_4BITMODE = 0x00;
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const uint8_t LCD_2LINE = 0x08;
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const uint8_t LCD_1LINE = 0x00;
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const uint8_t LCD_5x10DOTS = 0x04;
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const uint8_t LCD_5x8DOTS = 0x00;
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// flags for CGRAM
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const uint8_t LCD_SETCGRAMADDR = 0x40;
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const uint8_t LCD_EN = 0x04; // Enable bit
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const uint8_t LCD_RW = 0x02; // Read/Write bit
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const uint8_t LCD_RS = 0x01; // Register select bit
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/**
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* @brief i2c LCD display library
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* @defgroup i2clcd libupm-i2clcd
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* @ingroup seeed sparkfun adafruit i2c display gsk
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*/
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class I2CLcd
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{
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public:
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I2CLcd(int bus, int lcdAddress);
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mraa_result_t write(int x, int y, std::string msg);
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virtual mraa_result_t write(std::string msg) = 0;
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virtual mraa_result_t setCursor(int row, int column) = 0;
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virtual mraa_result_t clear() = 0;
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virtual mraa_result_t home() = 0;
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virtual mraa_result_t createChar(uint8_t charSlot, uint8_t charData[]);
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std::string name();
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protected:
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std::string m_name;
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int m_lcd_control_address;
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int m_bus;
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mraa::I2c m_i2c_lcd_control;
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};
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}
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