1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Character LCD driver for Linux
5 * Copyright (C) 2000-2008, Willy Tarreau <w@1wt.eu>
6 * Copyright (C) 2016-2017 Glider bvba
13 const struct charlcd_ops *ops;
14 const unsigned char *char_conv; /* Optional */
16 int ifwidth; /* 4-bit or 8-bit (default) */
19 int bwidth; /* Default set by charlcd_alloc() */
20 int hwidth; /* Default set by charlcd_alloc() */
22 void *drvdata; /* Set by charlcd_alloc() */
27 void (*write_cmd)(struct charlcd *lcd, int cmd);
28 void (*write_data)(struct charlcd *lcd, int data);
31 void (*write_cmd_raw4)(struct charlcd *lcd, int cmd); /* 4-bit only */
32 void (*clear_fast)(struct charlcd *lcd);
33 void (*backlight)(struct charlcd *lcd, int on);
36 struct charlcd *charlcd_alloc(unsigned int drvdata_size);
37 void charlcd_free(struct charlcd *lcd);
39 int charlcd_register(struct charlcd *lcd);
40 int charlcd_unregister(struct charlcd *lcd);
42 void charlcd_poke(struct charlcd *lcd);
44 #endif /* CHARLCD_H */