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 | * Get the refresh rate of the LCD |
32 | * |
33 | * Returns the refresh rate (hertz). |
34 | */ |
35 | extern unsigned int cfag12864b_getrate(void); |
36 | |
37 | /* |
38 | * Enable refreshing |
39 | * |
40 | * Returns 0 if successful (anyone was using it), |
41 | * or != 0 if failed (someone is using it). |
42 | */ |
43 | extern unsigned char cfag12864b_enable(void); |
44 | |
45 | /* |
46 | * Disable refreshing |
47 | * |
48 | * You should call this only when you finish using the LCD. |
49 | */ |
50 | extern void cfag12864b_disable(void); |
51 | |
52 | /* |
53 | * Is enabled refreshing? (is anyone using the module?) |
54 | * |
55 | * Returns 0 if refreshing is not enabled (anyone is using it), |
56 | * or != 0 if refreshing is enabled (someone is using it). |
57 | * |
58 | * Useful for buffer read-only modules. |
59 | */ |
60 | extern unsigned char cfag12864b_isenabled(void); |
61 | |
62 | /* |
63 | * Is the module inited? |
64 | */ |
65 | extern unsigned char cfag12864b_isinited(void); |
66 | |
67 | #endif /* _CFAG12864B_H_ */ |
68 | |
69 | |