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ae0d99369b
Remove calls to I2C helper functions (i2Cmd, i2cData, i2cReg) and call the raw MRAA function directly instead and remove the helper functions from the I2CLcd class Signed-off-by: Wouter van Verre <wouter.van.verre@intel.com> Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
105 lines
3.0 KiB
C++
105 lines
3.0 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.h>
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namespace upm
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{
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// commands
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#define LCD_CLEARDISPLAY 0x01
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#define LCD_RETURNHOME 0x02
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#define LCD_ENTRYMODESET 0x04
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#define LCD_DISPLAYCONTROL 0x08
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#define LCD_CURSORSHIFT 0x10
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#define LCD_FUNCTIONSET 0x20
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#define LCD_DATA 0x40
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#define LCD_CMD 0x80
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#define LCD_BACKLIGHT 0x08
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#define LCD_NOBACKLIGHT 0x00
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// flags for display entry mode
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#define LCD_ENTRYRIGHT 0x00
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#define LCD_ENTRYLEFT 0x02
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#define LCD_ENTRYSHIFTINCREMENT 0x01
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#define LCD_ENTRYSHIFTDECREMENT 0x00
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// flags for display on/off control
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#define LCD_DISPLAYON 0x04
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#define LCD_DISPLAYOFF 0x00
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#define LCD_CURSORON 0x02
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#define LCD_CURSOROFF 0x00
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#define LCD_BLINKON 0x01
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#define LCD_BLINKOFF 0x00
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// flags for display/cursor shift
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#define LCD_DISPLAYMOVE 0x08
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#define LCD_MOVERIGHT 0x04
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#define LCD_MOVELEFT 0x00
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// flags for function set
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#define LCD_8BITMODE 0x10
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#define LCD_4BITMODE 0x00
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#define LCD_2LINE 0x08
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#define LCD_1LINE 0x00
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#define LCD_5x10DOTS 0x04
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#define LCD_5x8DOTS 0x00
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// flags for CGRAM
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#define LCD_SETCGRAMADDR 0x40
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#define LCD_EN 0x04 // Enable bit
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#define LCD_RW 0x02 // Read/Write bit
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#define 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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mraa_result_t close();
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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_context m_i2c_lcd_control;
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};
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}
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