2014-05-30 05:50:31 -07:00
|
|
|
/*
|
|
|
|
* Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
|
|
|
|
* Copyright (c) 2014 Intel Corporation.
|
|
|
|
*
|
|
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
|
|
* a copy of this software and associated documentation files (the
|
|
|
|
* "Software"), to deal in the Software without restriction, including
|
|
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
|
|
* the following conditions:
|
|
|
|
*
|
|
|
|
* The above copyright notice and this permission notice shall be
|
|
|
|
* included in all copies or substantial portions of the Software.
|
|
|
|
*
|
|
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
|
|
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
|
|
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
|
|
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
|
|
|
|
#include <string>
|
2014-06-25 10:05:27 +01:00
|
|
|
#include <mraa/i2c.h>
|
2014-05-30 05:50:31 -07:00
|
|
|
|
|
|
|
namespace upm {
|
|
|
|
|
|
|
|
// 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
|
2014-06-05 15:20:40 +00:00
|
|
|
#define LCD_DATA 0x40
|
|
|
|
#define LCD_CMD 0x80
|
2014-05-30 05:50:31 -07:00
|
|
|
|
|
|
|
#define LCD_BACKLIGHT 0x08
|
|
|
|
#define LCD_NOBACKLIGHT 0x00
|
|
|
|
|
|
|
|
// 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
|
|
|
|
|
2014-07-14 15:25:12 +01:00
|
|
|
// flags for display/cursor shift
|
|
|
|
#define LCD_DISPLAYMOVE 0x08
|
|
|
|
#define LCD_MOVERIGHT 0x04
|
|
|
|
#define LCD_MOVELEFT 0x00
|
|
|
|
|
2014-05-30 05:50:31 -07:00
|
|
|
// 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
|
|
|
|
|
|
|
|
#define LCD_EN 0x04 // Enable bit
|
|
|
|
#define LCD_RW 0x02 // Read/Write bit
|
|
|
|
#define LCD_RS 0x01 // Register select bit
|
|
|
|
|
2014-06-12 14:16:39 +01:00
|
|
|
class I2CLcd {
|
2014-06-03 09:12:47 +00:00
|
|
|
public:
|
2014-06-12 14:16:39 +01:00
|
|
|
I2CLcd (int bus, int lcdAddress);
|
2014-06-25 10:05:27 +01:00
|
|
|
mraa_result_t write (int x, int y, std::string msg);
|
2014-07-29 21:46:48 +04:00
|
|
|
|
2014-06-25 10:05:27 +01:00
|
|
|
virtual mraa_result_t write (std::string msg) = 0;
|
|
|
|
virtual mraa_result_t setCursor (int row, int column) = 0;
|
|
|
|
virtual mraa_result_t clear () = 0;
|
|
|
|
virtual mraa_result_t home () = 0;
|
|
|
|
virtual mraa_result_t i2Cmd (mraa_i2c_context ctx, uint8_t value);
|
|
|
|
virtual mraa_result_t i2cReg (mraa_i2c_context ctx, int deviceAdress, int addr, uint8_t data);
|
|
|
|
virtual mraa_result_t i2cData (mraa_i2c_context ctx, uint8_t value);
|
2014-07-29 21:46:48 +04:00
|
|
|
|
2014-06-25 10:05:27 +01:00
|
|
|
mraa_result_t close();
|
2014-06-03 09:12:47 +00:00
|
|
|
std::string name()
|
2014-05-30 05:50:31 -07:00
|
|
|
{
|
|
|
|
return m_name;
|
|
|
|
}
|
2014-06-03 09:12:47 +00:00
|
|
|
protected:
|
|
|
|
std::string m_name;
|
|
|
|
int m_lcd_control_address;
|
|
|
|
int m_bus;
|
2014-06-25 10:05:27 +01:00
|
|
|
mraa_i2c_context m_i2c_lcd_control;
|
2014-05-30 05:50:31 -07:00
|
|
|
};
|
|
|
|
|
|
|
|
}
|