65 lines
2.3 KiB
C
65 lines
2.3 KiB
C
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/*
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* simplefb.h - Simple Framebuffer Device
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*
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* Copyright (C) 2013 David Herrmann <dh.herrmann@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __PLATFORM_DATA_SIMPLEFB_H__
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#define __PLATFORM_DATA_SIMPLEFB_H__
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#include <drm/drm_fourcc.h>
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#include <linux/fb.h>
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#include <linux/kernel.h>
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/* format array, use it to initialize a "struct simplefb_format" array */
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#define SIMPLEFB_FORMATS \
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{ \
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{ "r5g6b5", 16, {11, 5}, {5, 6}, {0, 5}, {0, 0}, DRM_FORMAT_RGB565 }, \
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{ "x1r5g5b5", 16, {10, 5}, {5, 5}, {0, 5}, {0, 0}, DRM_FORMAT_XRGB1555 }, \
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{ "a1r5g5b5", 16, {10, 5}, {5, 5}, {0, 5}, {15, 1}, DRM_FORMAT_ARGB1555 }, \
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{ "r8g8b8", 24, {16, 8}, {8, 8}, {0, 8}, {0, 0}, DRM_FORMAT_RGB888 }, \
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{ "x8r8g8b8", 32, {16, 8}, {8, 8}, {0, 8}, {0, 0}, DRM_FORMAT_XRGB8888 }, \
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{ "a8r8g8b8", 32, {16, 8}, {8, 8}, {0, 8}, {24, 8}, DRM_FORMAT_ARGB8888 }, \
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{ "a8b8g8r8", 32, {0, 8}, {8, 8}, {16, 8}, {24, 8}, DRM_FORMAT_ABGR8888 }, \
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{ "x2r10g10b10", 32, {20, 10}, {10, 10}, {0, 10}, {0, 0}, DRM_FORMAT_XRGB2101010 }, \
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{ "a2r10g10b10", 32, {20, 10}, {10, 10}, {0, 10}, {30, 2}, DRM_FORMAT_ARGB2101010 }, \
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}
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/*
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* Data-Format for Simple-Framebuffers
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* @name: unique 0-terminated name that can be used to identify the mode
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* @red,green,blue: Offsets and sizes of the single RGB parts
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* @transp: Offset and size of the alpha bits. length=0 means no alpha
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* @fourcc: 32bit DRM four-CC code (see drm_fourcc.h)
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*/
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struct simplefb_format {
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const char *name;
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u32 bits_per_pixel;
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struct fb_bitfield red;
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struct fb_bitfield green;
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struct fb_bitfield blue;
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struct fb_bitfield transp;
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u32 fourcc;
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};
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/*
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* Simple-Framebuffer description
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* If the arch-boot code creates simple-framebuffers without DT support, it
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* can pass the width, height, stride and format via this platform-data object.
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* The framebuffer location must be given as IORESOURCE_MEM resource.
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* @format must be a format as described in "struct simplefb_format" above.
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*/
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struct simplefb_platform_data {
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u32 width;
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u32 height;
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u32 stride;
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const char *format;
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};
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#endif /* __PLATFORM_DATA_SIMPLEFB_H__ */
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