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/* SPDX-License-Identifier: GPL-2.0 */ /* * Filename: cfag12864b.h * Version: 0.1.0 * Description: cfag12864b LCD driver header * * Author: Copyright (C) Miguel Ojeda <ojeda@kernel.org> * 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_ */