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// SPDX-License-Identifier: GPL-2.0-only
/*
* Linux logo to be displayed on boot
*
* Copyright (C) 1996 Larry Ewing (lewing@isc.tamu.edu)
* Copyright (C) 1996,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
* Copyright (C) 2001 Greg Banks <gnb@alphalink.com.au>
* Copyright (C) 2001 Jan-Benedict Glaw <jbglaw@lug-owl.de>
* Copyright (C) 2003 Geert Uytterhoeven <geert@linux-m68k.org>
*/
#include <linux/linux_logo.h>
#include <linux/stddef.h>
#include <linux/module.h>
#ifdef CONFIG_M68K
#include <asm/setup.h>
#endif
static bool nologo;
module_param(nologo, bool, 0);
MODULE_PARM_DESC(nologo, "Disables startup logo");
/*
* Logos are located in the initdata, and will be freed in kernel_init.
* Use late_init to mark the logos as freed to prevent any further use.
*/
static bool logos_freed;
static int __init fb_logo_late_init(void)
{
logos_freed = true;
return 0;
}
late_initcall_sync(fb_logo_late_init);
/* logo's are marked __initdata. Use __ref to tell
* modpost that it is intended that this function uses data
* marked __initdata.
*/
const struct linux_logo * __ref fb_find_logo(int depth)
{
const struct linux_logo *logo = NULL;
if (nologo || logos_freed)
return NULL;
#ifdef CONFIG_LOGO_LINUX_MONO
if (depth >= 1)
logo = &logo_linux_mono;
#endif
#ifdef CONFIG_LOGO_LINUX_VGA16
if (depth >= 4)
logo = &logo_linux_vga16;
#endif
#ifdef CONFIG_LOGO_LINUX_CLUT224
if (depth >= 8)
logo = &logo_linux_clut224;
#endif
return logo;
}
EXPORT_SYMBOL_GPL(fb_find_logo);
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