linux-stable/include/linux/cfag12864b.h
Miguel Ojeda 351f683b98 auxdisplay: Replace licenses with SPDX identifiers
Cc: Philippe Ombredanne <pombredanne@nexb.com>
Acked-by: Willy Tarreau <w@1wt.eu>
Acked-by: Linus Walleij <triad@dflund.se>
Acked-by: Robin van der Gracht <robin@protonic.nl>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
2018-04-12 19:02:45 +02:00

68 lines
1.5 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Filename: cfag12864b.h
* Version: 0.1.0
* Description: cfag12864b LCD driver header
*
* Author: Copyright (C) Miguel Ojeda Sandonis
* Date: 2006-10-12
*/
#ifndef _CFAG12864B_H_
#define _CFAG12864B_H_
#define CFAG12864B_WIDTH (128)
#define CFAG12864B_HEIGHT (64)
#define CFAG12864B_CONTROLLERS (2)
#define CFAG12864B_PAGES (8)
#define CFAG12864B_ADDRESSES (64)
#define CFAG12864B_SIZE ((CFAG12864B_CONTROLLERS) * \
(CFAG12864B_PAGES) * \
(CFAG12864B_ADDRESSES))
/*
* The driver will blit this buffer to the LCD
*
* Its size is CFAG12864B_SIZE.
*/
extern unsigned char * cfag12864b_buffer;
/*
* Get the refresh rate of the LCD
*
* Returns the refresh rate (hertz).
*/
extern unsigned int cfag12864b_getrate(void);
/*
* Enable refreshing
*
* Returns 0 if successful (anyone was using it),
* or != 0 if failed (someone is using it).
*/
extern unsigned char cfag12864b_enable(void);
/*
* Disable refreshing
*
* You should call this only when you finish using the LCD.
*/
extern void cfag12864b_disable(void);
/*
* Is enabled refreshing? (is anyone using the module?)
*
* Returns 0 if refreshing is not enabled (anyone is using it),
* or != 0 if refreshing is enabled (someone is using it).
*
* Useful for buffer read-only modules.
*/
extern unsigned char cfag12864b_isenabled(void);
/*
* Is the module inited?
*/
extern unsigned char cfag12864b_isinited(void);
#endif /* _CFAG12864B_H_ */