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Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
39 lines
1 KiB
C
39 lines
1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Character LCD driver for Linux
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*
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* Copyright (C) 2000-2008, Willy Tarreau <w@1wt.eu>
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* Copyright (C) 2016-2017 Glider bvba
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*/
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struct charlcd {
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const struct charlcd_ops *ops;
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const unsigned char *char_conv; /* Optional */
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int ifwidth; /* 4-bit or 8-bit (default) */
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int height;
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int width;
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int bwidth; /* Default set by charlcd_alloc() */
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int hwidth; /* Default set by charlcd_alloc() */
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void *drvdata; /* Set by charlcd_alloc() */
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};
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struct charlcd_ops {
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/* Required */
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void (*write_cmd)(struct charlcd *lcd, int cmd);
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void (*write_data)(struct charlcd *lcd, int data);
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/* Optional */
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void (*write_cmd_raw4)(struct charlcd *lcd, int cmd); /* 4-bit only */
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void (*clear_fast)(struct charlcd *lcd);
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void (*backlight)(struct charlcd *lcd, int on);
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};
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struct charlcd *charlcd_alloc(unsigned int drvdata_size);
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void charlcd_free(struct charlcd *lcd);
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int charlcd_register(struct charlcd *lcd);
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int charlcd_unregister(struct charlcd *lcd);
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void charlcd_poke(struct charlcd *lcd);
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