1 files changed, 106 insertions, 0 deletions
diff --git a/drivers/video/logo/logo.c b/drivers/video/logo/logo.c
new file mode 100644
index 000000000..141f15a9a
--- /dev/null
+++ b/drivers/video/logo/logo.c
@@ -0,0 +1,106 @@
+// 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;
+
+	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);