1 /*
2  * Copyright (c) 2013 Corey Tabaka
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining
5  * a copy of this software and associated documentation files
6  * (the "Software"), to deal in the Software without restriction,
7  * including without limitation the rights to use, copy, modify, merge,
8  * publish, distribute, sublicense, and/or sell copies of the Software,
9  * and to permit persons to whom the Software is furnished to do so,
10  * subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice shall be
13  * included in all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
19  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
20  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
21  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22  */
23 #ifndef __DEV_CLASS_FB_H
24 #define __DEV_CLASS_FB_H
25 
26 #include <compiler.h>
27 #include <dev/driver.h>
28 
29 struct fb_info {
30     void *addr;
31     size_t line_width;
32     size_t width;
33     size_t height;
34     size_t bpp;
35 };
36 
37 /* fb interface */
38 struct fb_ops {
39     struct driver_ops std;
40 
41     status_t (*set_mode)(struct device *dev, size_t width, size_t height, size_t bpp);
42     status_t (*get_info)(struct device *dev, struct fb_info *info);
43     status_t (*update)(struct device *dev);
44     status_t (*update_region)(struct device *dev, size_t x, size_t y, size_t width, size_t height);
45 };
46 
47 __BEGIN_CDECLS
48 
49 status_t class_fb_set_mode(struct device *dev, size_t width, size_t height, size_t bpp);
50 status_t class_fb_get_info(struct device *dev, struct fb_info *info);
51 status_t class_fb_update(struct device *dev);
52 status_t class_fb_update_region(struct device *dev, size_t x, size_t y, size_t width, size_t height);
53 
54 __END_CDECLS
55 
56 #endif
57 
58 
59