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5ef76da6 DH |
1 | /* |
2 | * simplefb.h - Simple Framebuffer Device | |
3 | * | |
4 | * Copyright (C) 2013 David Herrmann <dh.herrmann@gmail.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | */ | |
11 | ||
12 | #ifndef __PLATFORM_DATA_SIMPLEFB_H__ | |
13 | #define __PLATFORM_DATA_SIMPLEFB_H__ | |
14 | ||
15 | #include <drm/drm_fourcc.h> | |
16 | #include <linux/fb.h> | |
17 | #include <linux/kernel.h> | |
18 | ||
19 | /* format array, use it to initialize a "struct simplefb_format" array */ | |
20 | #define SIMPLEFB_FORMATS \ | |
21 | { \ | |
22 | { "r5g6b5", 16, {11, 5}, {5, 6}, {0, 5}, {0, 0}, DRM_FORMAT_RGB565 }, \ | |
9a6a36d1 DH |
23 | { "x1r5g5b5", 16, {10, 5}, {5, 5}, {0, 5}, {0, 0}, DRM_FORMAT_XRGB1555 }, \ |
24 | { "a1r5g5b5", 16, {10, 5}, {5, 5}, {0, 5}, {15, 1}, DRM_FORMAT_ARGB1555 }, \ | |
25 | { "r8g8b8", 24, {16, 8}, {8, 8}, {0, 8}, {0, 0}, DRM_FORMAT_RGB888 }, \ | |
26 | { "x8r8g8b8", 32, {16, 8}, {8, 8}, {0, 8}, {0, 0}, DRM_FORMAT_XRGB8888 }, \ | |
27 | { "a8r8g8b8", 32, {16, 8}, {8, 8}, {0, 8}, {24, 8}, DRM_FORMAT_ARGB8888 }, \ | |
9ab073bc | 28 | { "a8b8g8r8", 32, {0, 8}, {8, 8}, {16, 8}, {24, 8}, DRM_FORMAT_ABGR8888 }, \ |
9a6a36d1 DH |
29 | { "x2r10g10b10", 32, {20, 10}, {10, 10}, {0, 10}, {0, 0}, DRM_FORMAT_XRGB2101010 }, \ |
30 | { "a2r10g10b10", 32, {20, 10}, {10, 10}, {0, 10}, {30, 2}, DRM_FORMAT_ARGB2101010 }, \ | |
5ef76da6 DH |
31 | } |
32 | ||
33 | /* | |
34 | * Data-Format for Simple-Framebuffers | |
35 | * @name: unique 0-terminated name that can be used to identify the mode | |
36 | * @red,green,blue: Offsets and sizes of the single RGB parts | |
37 | * @transp: Offset and size of the alpha bits. length=0 means no alpha | |
38 | * @fourcc: 32bit DRM four-CC code (see drm_fourcc.h) | |
39 | */ | |
40 | struct simplefb_format { | |
41 | const char *name; | |
42 | u32 bits_per_pixel; | |
43 | struct fb_bitfield red; | |
44 | struct fb_bitfield green; | |
45 | struct fb_bitfield blue; | |
46 | struct fb_bitfield transp; | |
47 | u32 fourcc; | |
48 | }; | |
49 | ||
50 | /* | |
51 | * Simple-Framebuffer description | |
52 | * If the arch-boot code creates simple-framebuffers without DT support, it | |
53 | * can pass the width, height, stride and format via this platform-data object. | |
54 | * The framebuffer location must be given as IORESOURCE_MEM resource. | |
55 | * @format must be a format as described in "struct simplefb_format" above. | |
56 | */ | |
57 | struct simplefb_platform_data { | |
58 | u32 width; | |
59 | u32 height; | |
60 | u32 stride; | |
61 | const char *format; | |
62 | }; | |
63 | ||
64 | #endif /* __PLATFORM_DATA_SIMPLEFB_H__ */ |