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- /*
- * Character LCD driver for Linux
- *
- * Copyright (C) 2000-2008, Willy Tarreau <w@1wt.eu>
- * Copyright (C) 2016-2017 Glider bvba
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
- struct charlcd {
- const struct charlcd_ops *ops;
- const unsigned char *char_conv; /* Optional */
- int ifwidth; /* 4-bit or 8-bit (default) */
- int height;
- int width;
- int bwidth; /* Default set by charlcd_alloc() */
- int hwidth; /* Default set by charlcd_alloc() */
- void *drvdata; /* Set by charlcd_alloc() */
- };
- struct charlcd_ops {
- /* Required */
- void (*write_cmd)(struct charlcd *lcd, int cmd);
- void (*write_data)(struct charlcd *lcd, int data);
- /* Optional */
- void (*write_cmd_raw4)(struct charlcd *lcd, int cmd); /* 4-bit only */
- void (*clear_fast)(struct charlcd *lcd);
- void (*backlight)(struct charlcd *lcd, int on);
- };
- struct charlcd *charlcd_alloc(unsigned int drvdata_size);
- int charlcd_register(struct charlcd *lcd);
- int charlcd_unregister(struct charlcd *lcd);
- void charlcd_poke(struct charlcd *lcd);
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