LXR linux/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#ifdef CONFIG_MIPS
  21#include <asm/bootinfo.h>
  22#endif
  23
  24static int nologo;
  25module_param(nologo, bool, 0);
  26MODULE_PARM_DESC(nologo, "Disables startup logo");
  27
  28/* logo's are marked __initdata. Use __init_refok to tell
  29 * modpost that it is intended that this function uses data
  30 * marked __initdata.
  31 */
  32const struct linux_logo * __init_refok fb_find_logo(int depth)
  33{
  34        const struct linux_logo *logo = NULL;
  35
  36        if (nologo)
  37                return NULL;
  38
  39        if (depth >= 1) {
  40#ifdef CONFIG_LOGO_LINUX_MONO
  41                /* Generic Linux logo */
  42                logo = &logo_linux_mono;
  43#endif
  44#ifdef CONFIG_LOGO_SUPERH_MONO
  45                /* SuperH Linux logo */
  46                logo = &logo_superh_mono;
  47#endif
  48        }
  49        
  50        if (depth >= 4) {
  51#ifdef CONFIG_LOGO_LINUX_VGA16
  52                /* Generic Linux logo */
  53                logo = &logo_linux_vga16;
  54#endif
  55#ifdef CONFIG_LOGO_BLACKFIN_VGA16
  56                /* Blackfin processor logo */
  57                logo = &logo_blackfin_vga16;
  58#endif
  59#ifdef CONFIG_LOGO_SUPERH_VGA16
  60                /* SuperH Linux logo */
  61                logo = &logo_superh_vga16;
  62#endif
  63        }
  64        
  65        if (depth >= 8) {
  66#ifdef CONFIG_LOGO_LINUX_CLUT224
  67                /* Generic Linux logo */
  68                logo = &logo_linux_clut224;
  69#endif
  70#ifdef CONFIG_LOGO_BLACKFIN_CLUT224
  71                /* Blackfin Linux logo */
  72                logo = &logo_blackfin_clut224;
  73#endif
  74#ifdef CONFIG_LOGO_DEC_CLUT224
  75                /* DEC Linux logo on MIPS/MIPS64 or ALPHA */
  76                logo = &logo_dec_clut224;
  77#endif
  78#ifdef CONFIG_LOGO_MAC_CLUT224
  79                /* Macintosh Linux logo on m68k */
  80                if (MACH_IS_MAC)
  81                        logo = &logo_mac_clut224;
  82#endif
  83#ifdef CONFIG_LOGO_PARISC_CLUT224
  84                /* PA-RISC Linux logo */
  85                logo = &logo_parisc_clut224;
  86#endif
  87#ifdef CONFIG_LOGO_SGI_CLUT224
  88                /* SGI Linux logo on MIPS/MIPS64 and VISWS */
  89                logo = &logo_sgi_clut224;
  90#endif
  91#ifdef CONFIG_LOGO_SUN_CLUT224
  92                /* Sun Linux logo */
  93                logo = &logo_sun_clut224;
  94#endif
  95#ifdef CONFIG_LOGO_SUPERH_CLUT224
  96                /* SuperH Linux logo */
  97                logo = &logo_superh_clut224;
  98#endif
  99#ifdef CONFIG_LOGO_M32R_CLUT224
 100                /* M32R Linux logo */
 101                logo = &logo_m32r_clut224;
 102#endif
 103        }
 104        return logo;
 105}
 106EXPORT_SYMBOL_GPL(fb_find_logo);
 107