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https://github.com/brain-hackers/u-boot-brain
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998110241b
Add a very simple driver which uses vesa to discover the video mode and then provides a frame buffer for use by U-Boot. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Anatolij Gustschin <agust@denx.de>
38 lines
638 B
C
38 lines
638 B
C
/*
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*
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* Vesa frame buffer driver for x86
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*
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* Copyright (C) 2014 Google, Inc
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <video_fb.h>
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#include <vbe.h>
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#include "videomodes.h"
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/*
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* The Graphic Device
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*/
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GraphicDevice ctfb;
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void *video_hw_init(void)
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{
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GraphicDevice *gdev = &ctfb;
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int bits_per_pixel;
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printf("Video: ");
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if (vbe_get_video_info(gdev)) {
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printf("No video mode configured\n");
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return NULL;
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}
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bits_per_pixel = gdev->gdfBytesPP * 8;
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sprintf(gdev->modeIdent, "%dx%dx%d", gdev->winSizeX, gdev->winSizeY,
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bits_per_pixel);
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printf("%s\n", gdev->modeIdent);
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return (void *)gdev;
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}
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