drivers/video/logo/logo.c

   1
   2 /*
   3  *  Linux logo to be displayed on boot
   4  *
   5  *  Copyright (C) 1996 Larry Ewing (lewing@isc.tamu.edu)
   6  *  Copyright (C) 1996,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
   7  *  Copyright (C) 2001 Greg Banks <gnb@alphalink.com.au>
   8  *  Copyright (C) 2001 Jan-Benedict Glaw <jbglaw@lug-owl.de>
   9  *  Copyright (C) 2003 Geert Uytterhoeven <geert@linux-m68k.org>
  10  */
  11
  12 #include <linux/linux_logo.h>
  13 #include <linux/stddef.h>
  14 #include <linux/module.h>
  15
  16 #ifdef CONFIG_M68K
  17 #include <asm/setup.h>
  18 #endif
  19
  20 static bool nologo;
  21 module_param(nologo, bool, 0);
  22 MODULE_PARM_DESC(nologo, "Disables startup logo");
  23
  24 /* logo's are marked __initdata. Use __init_refok to tell
  25  * modpost that it is intended that this function uses data
  26  * marked __initdata.
  27  */
  28 const struct linux_logo * __init_refok fb_find_logo(int depth)
  29 {
  30         const struct linux_logo *logo = NULL;
  31
  32         if (nologo)
  33                 return NULL;
  34
  35         if (depth >= 1) {
  36 #ifdef CONFIG_LOGO_LINUX_MONO
  37                 /* Generic Linux logo */
  38                 logo = &logo_linux_mono;
  39 #endif
  40 #ifdef CONFIG_LOGO_SUPERH_MONO
  41                 /* SuperH Linux logo */
  42                 logo = &logo_superh_mono;
  43 #endif
  44         }
  45
  46         if (depth >= 4) {
  47 #ifdef CONFIG_LOGO_LINUX_VGA16
  48                 /* Generic Linux logo */
  49                 logo = &logo_linux_vga16;
  50 #endif
  51 #ifdef CONFIG_LOGO_BLACKFIN_VGA16
  52                 /* Blackfin processor logo */
  53                 logo = &logo_blackfin_vga16;
  54 #endif
  55 #ifdef CONFIG_LOGO_SUPERH_VGA16
  56                 /* SuperH Linux logo */
  57                 logo = &logo_superh_vga16;
  58 #endif
  59         }
  60
  61         if (depth >= 8) {
  62 #ifdef CONFIG_LOGO_LINUX_CLUT224
  63                 /* Generic Linux logo */
  64                 logo = &logo_linux_clut224;
  65 #endif
  66 #ifdef CONFIG_LOGO_BLACKFIN_CLUT224
  67                 /* Blackfin Linux logo */
  68                 logo = &logo_blackfin_clut224;
  69 #endif
  70 #ifdef CONFIG_LOGO_DEC_CLUT224
  71                 /* DEC Linux logo on MIPS/MIPS64 or ALPHA */
  72                 logo = &logo_dec_clut224;
  73 #endif
  74 #ifdef CONFIG_LOGO_MAC_CLUT224
  75                 /* Macintosh Linux logo on m68k */
  76                 if (MACH_IS_MAC)
  77                         logo = &logo_mac_clut224;
  78 #endif
  79 #ifdef CONFIG_LOGO_PARISC_CLUT224
  80                 /* PA-RISC Linux logo */
  81                 logo = &logo_parisc_clut224;
  82 #endif
  83 #ifdef CONFIG_LOGO_SGI_CLUT224
  84                 /* SGI Linux logo on MIPS/MIPS64 and VISWS */
  85                 logo = &logo_sgi_clut224;
  86 #endif
  87 #ifdef CONFIG_LOGO_SUN_CLUT224
  88                 /* Sun Linux logo */
  89                 logo = &logo_sun_clut224;
  90 #endif
  91 #ifdef CONFIG_LOGO_SUPERH_CLUT224
  92                 /* SuperH Linux logo */
  93                 logo = &logo_superh_clut224;
  94 #endif
  95 #ifdef CONFIG_LOGO_M32R_CLUT224
  96                 /* M32R Linux logo */
  97                 logo = &logo_m32r_clut224;
  98 #endif
  99         }
 100         return logo;
 101 }
 102 EXPORT_SYMBOL_GPL(fb_find_logo);