1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | |
3 | #define DEFAULT_LCD_BWIDTH 40 |
4 | #define DEFAULT_LCD_HWIDTH 64 |
5 | |
6 | struct hd44780_common { |
7 | int ifwidth; /* 4-bit or 8-bit (default) */ |
8 | int bwidth; /* Default set by hd44780_alloc() */ |
9 | int hwidth; /* Default set by hd44780_alloc() */ |
10 | unsigned long hd44780_common_flags; |
11 | void (*write_data)(struct hd44780_common *hdc, int data); |
12 | void (*write_cmd)(struct hd44780_common *hdc, int cmd); |
13 | /* write_cmd_raw4 is for 4-bit connected displays only */ |
14 | void (*write_cmd_raw4)(struct hd44780_common *hdc, int cmd); |
15 | void *hd44780; |
16 | }; |
17 | |
18 | int hd44780_common_print(struct charlcd *lcd, int c); |
19 | int hd44780_common_gotoxy(struct charlcd *lcd, unsigned int x, unsigned int y); |
20 | int hd44780_common_home(struct charlcd *lcd); |
21 | int hd44780_common_clear_display(struct charlcd *lcd); |
22 | int hd44780_common_init_display(struct charlcd *lcd); |
23 | int hd44780_common_shift_cursor(struct charlcd *lcd, |
24 | enum charlcd_shift_dir dir); |
25 | int hd44780_common_shift_display(struct charlcd *lcd, |
26 | enum charlcd_shift_dir dir); |
27 | int hd44780_common_display(struct charlcd *lcd, enum charlcd_onoff on); |
28 | int hd44780_common_cursor(struct charlcd *lcd, enum charlcd_onoff on); |
29 | int hd44780_common_blink(struct charlcd *lcd, enum charlcd_onoff on); |
30 | int hd44780_common_fontsize(struct charlcd *lcd, enum charlcd_fontsize size); |
31 | int hd44780_common_lines(struct charlcd *lcd, enum charlcd_lines lines); |
32 | int hd44780_common_redefine_char(struct charlcd *lcd, char *esc); |
33 | struct hd44780_common *hd44780_common_alloc(void); |
34 | |