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106 lines
2.4 KiB
106 lines
2.4 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Linux logo to be displayed on boot |
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* |
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* Copyright (C) 1996 Larry Ewing ([email protected]) |
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* Copyright (C) 1996,1998 Jakub Jelinek ([email protected]) |
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* Copyright (C) 2001 Greg Banks <[email protected]> |
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* Copyright (C) 2001 Jan-Benedict Glaw <[email protected]> |
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* Copyright (C) 2003 Geert Uytterhoeven <[email protected]> |
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*/ |
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#include <linux/linux_logo.h> |
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#include <linux/stddef.h> |
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#include <linux/module.h> |
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#ifdef CONFIG_M68K |
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#include <asm/setup.h> |
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#endif |
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static bool nologo; |
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module_param(nologo, bool, 0); |
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MODULE_PARM_DESC(nologo, "Disables startup logo"); |
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/* |
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* Logos are located in the initdata, and will be freed in kernel_init. |
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* Use late_init to mark the logos as freed to prevent any further use. |
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*/ |
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static bool logos_freed; |
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static int __init fb_logo_late_init(void) |
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{ |
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logos_freed = true; |
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return 0; |
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} |
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late_initcall_sync(fb_logo_late_init); |
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/* logo's are marked __initdata. Use __ref to tell |
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* modpost that it is intended that this function uses data |
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* marked __initdata. |
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*/ |
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const struct linux_logo * __ref fb_find_logo(int depth) |
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{ |
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const struct linux_logo *logo = NULL; |
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if (nologo || logos_freed) |
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return NULL; |
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if (depth >= 1) { |
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#ifdef CONFIG_LOGO_LINUX_MONO |
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/* Generic Linux logo */ |
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logo = &logo_linux_mono; |
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#endif |
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#ifdef CONFIG_LOGO_SUPERH_MONO |
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/* SuperH Linux logo */ |
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logo = &logo_superh_mono; |
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#endif |
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} |
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if (depth >= 4) { |
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#ifdef CONFIG_LOGO_LINUX_VGA16 |
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/* Generic Linux logo */ |
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logo = &logo_linux_vga16; |
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#endif |
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#ifdef CONFIG_LOGO_SUPERH_VGA16 |
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/* SuperH Linux logo */ |
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logo = &logo_superh_vga16; |
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#endif |
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} |
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if (depth >= 8) { |
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#ifdef CONFIG_LOGO_LINUX_CLUT224 |
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/* Generic Linux logo */ |
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logo = &logo_linux_clut224; |
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#endif |
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#ifdef CONFIG_LOGO_DEC_CLUT224 |
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/* DEC Linux logo on MIPS/MIPS64 or ALPHA */ |
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logo = &logo_dec_clut224; |
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#endif |
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#ifdef CONFIG_LOGO_MAC_CLUT224 |
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/* Macintosh Linux logo on m68k */ |
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if (MACH_IS_MAC) |
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logo = &logo_mac_clut224; |
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#endif |
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#ifdef CONFIG_LOGO_PARISC_CLUT224 |
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/* PA-RISC Linux logo */ |
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logo = &logo_parisc_clut224; |
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#endif |
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#ifdef CONFIG_LOGO_SGI_CLUT224 |
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/* SGI Linux logo on MIPS/MIPS64 */ |
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logo = &logo_sgi_clut224; |
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#endif |
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#ifdef CONFIG_LOGO_SUN_CLUT224 |
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/* Sun Linux logo */ |
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logo = &logo_sun_clut224; |
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#endif |
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#ifdef CONFIG_LOGO_SUPERH_CLUT224 |
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/* SuperH Linux logo */ |
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logo = &logo_superh_clut224; |
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#endif |
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} |
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return logo; |
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} |
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EXPORT_SYMBOL_GPL(fb_find_logo);
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