HD44780_I2C_LCD/hd44780_i2c_lcd.h

/*
 * hd44780_i2c_lcd.h
 *
 * Copyright 2022 dh33ex <dh33ex@riseup.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA or see <http://www.gnu.org/licenses/>.
 *
 *
 */

#ifndef HD44780_I2C_LCD_H
#define HD44780_I2C_LCD_H

#define HD44780_NO_CURSOR           0
#define HD44780_BLINK_CURSOR        1
#define HD44780_PERMANENT_CURSOR    2

struct hd44780 {
    unsigned char light;
    unsigned char cursor;
    unsigned char address;
    unsigned char rows;
    unsigned char columns;
};

typedef struct hd44780 HD44780;

void LCD_init(HD44780 *disp);
void LCD_write(HD44780 *disp, char *string);
void LCD_set_address(HD44780 *disp, unsigned char x, unsigned char y);
void LCD_backlight(HD44780 *disp, unsigned char state);
void LCD_clear(HD44780 *disp);

#endif