| David Herrmann | 5ef76da | 2013-08-02 14:05:20 +0200 | [diff] [blame] | 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 }, \ |
| David Herrmann | 9a6a36d | 2013-08-02 14:05:24 +0200 | [diff] [blame^] | 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 }, \ |
| 28 | { "x2r10g10b10", 32, {20, 10}, {10, 10}, {0, 10}, {0, 0}, DRM_FORMAT_XRGB2101010 }, \ |
| 29 | { "a2r10g10b10", 32, {20, 10}, {10, 10}, {0, 10}, {30, 2}, DRM_FORMAT_ARGB2101010 }, \ |
| David Herrmann | 5ef76da | 2013-08-02 14:05:20 +0200 | [diff] [blame] | 30 | } |
| 31 | |
| 32 | /* |
| 33 | * Data-Format for Simple-Framebuffers |
| 34 | * @name: unique 0-terminated name that can be used to identify the mode |
| 35 | * @red,green,blue: Offsets and sizes of the single RGB parts |
| 36 | * @transp: Offset and size of the alpha bits. length=0 means no alpha |
| 37 | * @fourcc: 32bit DRM four-CC code (see drm_fourcc.h) |
| 38 | */ |
| 39 | struct simplefb_format { |
| 40 | const char *name; |
| 41 | u32 bits_per_pixel; |
| 42 | struct fb_bitfield red; |
| 43 | struct fb_bitfield green; |
| 44 | struct fb_bitfield blue; |
| 45 | struct fb_bitfield transp; |
| 46 | u32 fourcc; |
| 47 | }; |
| 48 | |
| 49 | /* |
| 50 | * Simple-Framebuffer description |
| 51 | * If the arch-boot code creates simple-framebuffers without DT support, it |
| 52 | * can pass the width, height, stride and format via this platform-data object. |
| 53 | * The framebuffer location must be given as IORESOURCE_MEM resource. |
| 54 | * @format must be a format as described in "struct simplefb_format" above. |
| 55 | */ |
| 56 | struct simplefb_platform_data { |
| 57 | u32 width; |
| 58 | u32 height; |
| 59 | u32 stride; |
| 60 | const char *format; |
| 61 | }; |
| 62 | |
| 63 | #endif /* __PLATFORM_DATA_SIMPLEFB_H__ */ |