4 * This file is part of BeRTOS.
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21 * library without restriction. Specifically, if other files instantiate
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29 * Copyright 2005 Develer S.r.l. (http://www.develer.com/)
33 * \brief Hitachi HD44780 and clones LCD module.
35 * \author Bernie Innocenti <bernie@codewiz.org>
36 * \author Stefano Fedrigo <aleph@develer.com>
38 * $WIZ$ module_name = "lcd_hd44"
39 * $WIZ$ module_depends = "timer"
40 * $WIZ$ module_configuration = "bertos/cfg/cfg_lcd_hd44.h"
41 * $WIZ$ module_hw = "bertos/hw/hw_lcd_hd44.h"
44 #ifndef DRV_LCD_HD44_H
45 #define DRV_LCD_HD44_H
47 #include "cfg/cfg_lcd_hd44.h"
48 #include <cfg/compiler.h> /* For stdint types */
51 * \name Values for CONFIG_LCD_ROWS.
53 * Select the number of rows which are available
54 * on the HD44780 Display.
55 * $WIZ$ lcd_hd44_rows = "LCD_HD44_ROWS_2", "LCD_HD44_ROWS_4"
57 #define LCD_HD44_ROWS_2 2
58 #define LCD_HD44_ROWS_4 4
61 * \name Values for CONFIG_LCD_COLS.
63 * Select the number of columns which are available
64 * on the HD44780 Display.
65 * $WIZ$ lcd_hd44_cols = "LCD_HD44_COLS_16", "LCD_HD44_COLS_20"
67 #define LCD_HD44_COLS_16 16
68 #define LCD_HD44_COLS_20 20
71 * \name Hitachi HD44 commands.
74 #define LCD_CMD_DISPLAY_INI 0x30
77 #define LCD_CMD_SETFUNC 0x28 /**< 4 bits, 2 lines, 5x7 dots */
79 #define LCD_CMD_SETFUNC 0x38 /**< 8 bits, 2 lines, 5x7 dots */
82 #define LCD_CMD_SET8BIT 0x30
83 #define LCD_CMD_DISPLAY_ON 0x0F /**< Switch on display */
84 #define LCD_CMD_DISPLAY_OFF 0x08 /**< Switch off display */
85 #define LCD_CMD_CLEAR 0x01 /**< Clear display */
86 #define LCD_CMD_CURSOR_BLOCK 0x0D /**< Show cursor (block) */
87 #define LCD_CMD_CURSOR_LINE 0x0F /**< Show cursor (line) */
88 #define LCD_CMD_CURSOR_OFF 0x0C /**< Hide cursor */
89 #define LCD_CMD_DISPLAYMODE 0x06
90 #define LCD_CMD_SET_CGRAMADDR 0x40
91 #define LCD_CMD_RESET_DDRAM 0x80
92 #define LCD_CMD_SET_DDRAMADDR 0x80
93 #define LCD_CMD_DISPLAY_SHIFT 0x18
94 #define LCD_CMD_MOVESHIFT_LEFT 0x00
95 #define LCD_CMD_MOVESHIFT_RIGHT 0x04
98 /** Type for combined LCD cursor position (x,y). */
99 typedef uint8_t lcdpos_t;
101 void lcd_waitBusy(void);
102 void lcd_moveTo(uint8_t addr);
103 void lcd_setReg(uint8_t val);
104 void lcd_putc(uint8_t a, uint8_t c);
105 void lcd_remapChar(const char *glyph, char code);
106 void lcd_hw_init(void);
107 void lcd_hw_test(void);
109 #endif /* DRV_LCD_HD44_H */