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x86: video: Add video driver for bare x86 boards
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>
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@ -41,6 +41,7 @@ obj-$(CONFIG_VIDEO_SM501) += sm501.o
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obj-$(CONFIG_VIDEO_SMI_LYNXEM) += smiLynxEM.o videomodes.o
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obj-$(CONFIG_VIDEO_TEGRA) += tegra.o
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obj-$(CONFIG_VIDEO_VCXK) += bus_vcxk.o
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obj-$(CONFIG_VIDEO_X86) += x86_fb.o
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obj-$(CONFIG_FORMIKE) += formike.o
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obj-$(CONFIG_AM335X_LCD) += am335x-fb.o
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obj-$(CONFIG_VIDEO_PARADE) += parade.o
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37
drivers/video/x86_fb.c
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37
drivers/video/x86_fb.c
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@ -0,0 +1,37 @@
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/*
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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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