aip31068_regs.h

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/*
 * SPDX-FileCopyrightText: 2020 Freie Universität Berlin
 * SPDX-License-Identifier: LGPL-2.1-only
 */
 
#pragma once

 
#include "bitarithm.h"
 
#ifdef __cplusplus
extern "C"
{
#endif
 
/* Commands (page 18, table 3) */

#define AIP31068_CMD_CLEAR_DISPLAY          0x01

#define AIP31068_CMD_RETURN_HOME            0x02

#define AIP31068_CMD_ENTRY_MODE_SET         0x04

#define AIP31068_CMD_DISPLAY_CONTROL        0x08

#define AIP31068_CMD_CURSOR_DISPLAY_SHIFT   0x10

#define AIP31068_CMD_FUNCTION_SET           0x20

#define AIP31068_CMD_SET_CGRAM_ADDR         0x40

#define AIP31068_CMD_SET_DDRAM_ADDR         0x80
 
/* Bits for AIP31068_CMD_ENTRY_MODE_SET (page 16, section 3) */

#define AIP31068_BIT_ENTRY_MODE_INCREMENT       BIT1

#define AIP31068_BIT_ENTRY_MODE_AUTOINCREMENT   BIT0
 
/* Bits for AIP31068_CMD_DISPLAY_CONTROL (page 16, section 4) */

#define AIP31068_BIT_DISPLAY_CONTROL_DISPLAY            BIT2

#define AIP31068_BIT_DISPLAY_CONTROL_CURSOR             BIT1

#define AIP31068_BIT_DISPLAY_CONTROL_CURSOR_BLINKING    BIT0
 
/* Bits for AIP31068_CMD_CURSOR_DISPLAY_SHIFT (page 17, section 5) */

#define AIP31068_BIT_CURSOR_DISPLAY_SHIFT_SELECTION     BIT3

#define AIP31068_BIT_CURSOR_DISPLAY_SHIFT_DIRECTION     BIT2
 
/* Bits for AIP31068_CMD_FUNCTION_SET (page 17, section 6) */

#define AIP31068_BIT_FUNCTION_SET_BITMODE   BIT4

#define AIP31068_BIT_FUNCTION_SET_LINECOUNT BIT3

#define AIP31068_BIT_FUNCTION_SET_FONTSIZE  BIT2
 
/* Bits for control byte (page 12) */

#define AIP31068_BIT_CONTROL_BYTE_CO    BIT7

#define AIP31068_BIT_CONTROL_BYTE_RS    BIT6
 
#ifdef __cplusplus
}
#endif