include/linux/cfag12864b.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  *    Filename: cfag12864b.h
   4  *     Version: 0.1.0
   5  * Description: cfag12864b LCD driver header
   6  *
   7  *      Author: Copyright (C) Miguel Ojeda <ojeda@kernel.org>
   8  *        Date: 2006-10-12
   9  */
  10
  11 #ifndef _CFAG12864B_H_
  12 #define _CFAG12864B_H_
  13
  14 #define CFAG12864B_WIDTH        (128)
  15 #define CFAG12864B_HEIGHT       (64)
  16 #define CFAG12864B_CONTROLLERS  (2)
  17 #define CFAG12864B_PAGES        (8)
  18 #define CFAG12864B_ADDRESSES    (64)
  19 #define CFAG12864B_SIZE         ((CFAG12864B_CONTROLLERS) * \
  20                                 (CFAG12864B_PAGES) * \
  21                                 (CFAG12864B_ADDRESSES))
  22
  23 /*
  24  * The driver will blit this buffer to the LCD
  25  *
  26  * Its size is CFAG12864B_SIZE.
  27  */
  28 extern unsigned char * cfag12864b_buffer;
  29
  30 /*
  31  * Enable refreshing
  32  *
  33  * Returns 0 if successful (anyone was using it),
  34  * or != 0 if failed (someone is using it).
  35  */
  36 extern unsigned char cfag12864b_enable(void);
  37
  38 /*
  39  * Disable refreshing
  40  *
  41  * You should call this only when you finish using the LCD.
  42  */
  43 extern void cfag12864b_disable(void);
  44
  45 /*
  46  * Is the module inited?
  47  */
  48 extern unsigned char cfag12864b_isinited(void);
  49
  50 #endif /* _CFAG12864B_H_ */
  51