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
  24 extern const struct linux_logo logo_linux_mono;
  25 extern const struct linux_logo logo_linux_vga16;
  26 extern const struct linux_logo logo_linux_clut224;
  27 extern const struct linux_logo logo_dec_clut224;
  28 extern const struct linux_logo logo_mac_clut224;
  29 extern const struct linux_logo logo_parisc_clut224;
  30 extern const struct linux_logo logo_sgi_clut224;
  31 extern const struct linux_logo logo_sun_clut224;
  32 extern const struct linux_logo logo_superh_mono;
  33 extern const struct linux_logo logo_superh_vga16;
  34 extern const struct linux_logo logo_superh_clut224;
  35 extern const struct linux_logo logo_m32r_clut224;
  36
  37
  38 const struct linux_logo *fb_find_logo(int depth)
  39 {
  40         const struct linux_logo *logo = NULL;
  41
  42         if (depth >= 1) {
  43 #ifdef CONFIG_LOGO_LINUX_MONO
  44                 /* Generic Linux logo */
  45                 logo = &logo_linux_mono;
  46 #endif
  47 #ifdef CONFIG_LOGO_SUPERH_MONO
  48                 /* SuperH Linux logo */
  49                 logo = &logo_superh_mono;
  50 #endif
  51         }
  52
  53         if (depth >= 4) {
  54 #ifdef CONFIG_LOGO_LINUX_VGA16
  55                 /* Generic Linux logo */
  56                 logo = &logo_linux_vga16;
  57 #endif
  58 #ifdef CONFIG_LOGO_SUPERH_VGA16
  59                 /* SuperH Linux logo */
  60                 logo = &logo_superh_vga16;
  61 #endif
  62         }
  63
  64         if (depth >= 8) {
  65 #ifdef CONFIG_LOGO_LINUX_CLUT224
  66                 /* Generic Linux logo */
  67                 logo = &logo_linux_clut224;
  68 #endif
  69 #ifdef CONFIG_LOGO_DEC_CLUT224
  70                 /* DEC Linux logo on MIPS/MIPS64 or ALPHA */
  71 #ifndef CONFIG_ALPHA
  72                 if (mips_machgroup == MACH_GROUP_DEC)
  73 #endif
  74                         logo = &logo_dec_clut224;
  75 #endif
  76 #ifdef CONFIG_LOGO_MAC_CLUT224
  77                 /* Macintosh Linux logo on m68k */
  78                 if (MACH_IS_MAC)
  79                         logo = &logo_mac_clut224;
  80 #endif
  81 #ifdef CONFIG_LOGO_PARISC_CLUT224
  82                 /* PA-RISC Linux logo */
  83                 logo = &logo_parisc_clut224;
  84 #endif
  85 #ifdef CONFIG_LOGO_SGI_CLUT224
  86                 /* SGI Linux logo on MIPS/MIPS64 and VISWS */
  87 #ifndef CONFIG_X86_VISWS
  88                 if (mips_machgroup == MACH_GROUP_SGI)
  89 #endif
  90                         logo = &logo_sgi_clut224;
  91 #endif
  92 #ifdef CONFIG_LOGO_SUN_CLUT224
  93                 /* Sun Linux logo */
  94                 logo = &logo_sun_clut224;
  95 #endif
  96 #ifdef CONFIG_LOGO_SUPERH_CLUT224
  97                 /* SuperH Linux logo */
  98                 logo = &logo_superh_clut224;
  99 #endif
 100 #ifdef CONFIG_LOGO_M32R_CLUT224
 101                 /* M32R Linux logo */
 102                 logo = &logo_m32r_clut224;
 103 #endif
 104         }
 105         return logo;
 106 }
 107 EXPORT_SYMBOL_GPL(fb_find_logo);