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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /drivers/video/logo/logo.c | |
| parent | Initial commit. (diff) | |
| download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip | |
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/video/logo/logo.c')
| -rw-r--r-- | drivers/video/logo/logo.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/video/logo/logo.c b/drivers/video/logo/logo.c new file mode 100644 index 000000000..36aa050f9 --- /dev/null +++ b/drivers/video/logo/logo.c @@ -0,0 +1,105 @@ + +/* + * 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; + + if (depth >= 1) { +#ifdef CONFIG_LOGO_LINUX_MONO + /* Generic Linux logo */ + logo = &logo_linux_mono; +#endif +#ifdef CONFIG_LOGO_SUPERH_MONO + /* SuperH Linux logo */ + logo = &logo_superh_mono; +#endif + } + + if (depth >= 4) { +#ifdef CONFIG_LOGO_LINUX_VGA16 + /* Generic Linux logo */ + logo = &logo_linux_vga16; +#endif +#ifdef CONFIG_LOGO_SUPERH_VGA16 + /* SuperH Linux logo */ + logo = &logo_superh_vga16; +#endif + } + + if (depth >= 8) { +#ifdef CONFIG_LOGO_LINUX_CLUT224 + /* Generic Linux logo */ + logo = &logo_linux_clut224; +#endif +#ifdef CONFIG_LOGO_DEC_CLUT224 + /* DEC Linux logo on MIPS/MIPS64 or ALPHA */ + logo = &logo_dec_clut224; +#endif +#ifdef CONFIG_LOGO_MAC_CLUT224 + /* Macintosh Linux logo on m68k */ + if (MACH_IS_MAC) + logo = &logo_mac_clut224; +#endif +#ifdef CONFIG_LOGO_PARISC_CLUT224 + /* PA-RISC Linux logo */ + logo = &logo_parisc_clut224; +#endif +#ifdef CONFIG_LOGO_SGI_CLUT224 + /* SGI Linux logo on MIPS/MIPS64 */ + logo = &logo_sgi_clut224; +#endif +#ifdef CONFIG_LOGO_SUN_CLUT224 + /* Sun Linux logo */ + logo = &logo_sun_clut224; +#endif +#ifdef CONFIG_LOGO_SUPERH_CLUT224 + /* SuperH Linux logo */ + logo = &logo_superh_clut224; +#endif + } + return logo; +} +EXPORT_SYMBOL_GPL(fb_find_logo); |