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1/*
2 * Filename: cfag12864b.h
3 * Version: 0.1.0
4 * Description: cfag12864b LCD driver header
5 * License: GPLv2
6 *
450c622e 7 * Author: Copyright (C) Miguel Ojeda Sandonis
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8 * Date: 2006-10-12
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 */
24
25#ifndef _CFAG12864B_H_
26#define _CFAG12864B_H_
27
28#define CFAG12864B_WIDTH (128)
29#define CFAG12864B_HEIGHT (64)
30#define CFAG12864B_CONTROLLERS (2)
31#define CFAG12864B_PAGES (8)
32#define CFAG12864B_ADDRESSES (64)
33#define CFAG12864B_SIZE ((CFAG12864B_CONTROLLERS) * \
34 (CFAG12864B_PAGES) * \
35 (CFAG12864B_ADDRESSES))
36
37/*
38 * The driver will blit this buffer to the LCD
39 *
40 * Its size is CFAG12864B_SIZE.
41 */
42extern unsigned char * cfag12864b_buffer;
43
44/*
45 * Get the refresh rate of the LCD
46 *
47 * Returns the refresh rate (hertzs).
48 */
49extern unsigned int cfag12864b_getrate(void);
50
51/*
52 * Enable refreshing
53 *
54 * Returns 0 if successful (anyone was using it),
55 * or != 0 if failed (someone is using it).
56 */
57extern unsigned char cfag12864b_enable(void);
58
59/*
60 * Disable refreshing
61 *
62 * You should call this only when you finish using the LCD.
63 */
64extern void cfag12864b_disable(void);
65
66/*
67 * Is enabled refreshing? (is anyone using the module?)
68 *
69 * Returns 0 if refreshing is not enabled (anyone is using it),
70 * or != 0 if refreshing is enabled (someone is using it).
71 *
72 * Useful for buffer read-only modules.
73 */
74extern unsigned char cfag12864b_isenabled(void);
75
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76/*
77 * Is the module inited?
78 */
79extern unsigned char cfag12864b_isinited(void);
80
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81#endif /* _CFAG12864B_H_ */
82