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/*
* Copyright (c) 2024 Netflix, Inc.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
/*
* This file provides all the gfx glue, or stubs, so that we can build, if we
* want, two versions of the bios loader: one with graphics support and one
* without. This allows us to keep the calls in other places, like libraries
* that are tricky to compile twice. It also reduces the number of ifdefs we
* need to support the old text-only video console. This could also be two
* separate files, but it is short and having it all here helps to constrain
* dependency creap somewhat.
*/
#include <stand.h>
#ifndef BIOS_TEXT_ONLY
#include "bootstrap.h"
#include "libi386/libi386.h"
#include "libi386/vbe.h"
#include <gfx_fb.h>
#endif
#ifdef BIOS_TEXT_ONLY /* Note: likely need a forced commits when this changes */
void autoload_font(bool bios);
void
autoload_font(bool bios)
{
}
vm_offset_t build_font_module(vm_offset_t addr);
vm_offset_t
build_font_module(vm_offset_t addr)
{
return addr;
}
struct preloaded_file;
void bi_load_vbe_data(struct preloaded_file *kfp);
void bi_load_vbe_data(struct preloaded_file *kfp)
{
}
#else
void
bi_load_vbe_data(struct preloaded_file *kfp)
{
if (!kfp->f_tg_kernel_support) {
/*
* Loaded kernel does not have vt/vbe backend,
* switch console to text mode.
*/
if (vbe_available())
bios_set_text_mode(VGA_TEXT_MODE);
return;
}
if (vbe_available()) {
file_addmetadata(kfp, MODINFOMD_VBE_FB,
sizeof(gfx_state.tg_fb), &gfx_state.tg_fb);
}
}
#endif
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