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 void (*write_data)(struct hd44780_common *hdc, int data); 11 void (*write_cmd)(struct hd44780_common *hdc, int cmd); 12 /* write_cmd_raw4 is for 4-bit connected displays only */ 13 void (*write_cmd_raw4)(struct hd44780_common *hdc, int cmd); 14 void *hd44780; 15 }; 16 17 int hd44780_common_print(struct charlcd *lcd, int c); 18 int hd44780_common_gotoxy(struct charlcd *lcd); 19 struct hd44780_common *hd44780_common_alloc(void); 20