| 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); |