logo.c 2.9 KB

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  1. /*
  2. * Linux logo to be displayed on boot
  3. *
  4. * Copyright (C) 1996 Larry Ewing (lewing@isc.tamu.edu)
  5. * Copyright (C) 1996,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
  6. * Copyright (C) 2001 Greg Banks <gnb@alphalink.com.au>
  7. * Copyright (C) 2001 Jan-Benedict Glaw <jbglaw@lug-owl.de>
  8. * Copyright (C) 2003 Geert Uytterhoeven <geert@linux-m68k.org>
  9. */
  10. #include <linux/linux_logo.h>
  11. #include <linux/stddef.h>
  12. #include <linux/module.h>
  13. #ifdef CONFIG_M68K
  14. #include <asm/setup.h>
  15. #endif
  16. #ifdef CONFIG_MIPS
  17. #include <asm/bootinfo.h>
  18. #endif
  19. extern const struct linux_logo logo_linux_mono;
  20. extern const struct linux_logo logo_linux_vga16;
  21. extern const struct linux_logo logo_linux_clut224;
  22. extern const struct linux_logo logo_dec_clut224;
  23. extern const struct linux_logo logo_mac_clut224;
  24. extern const struct linux_logo logo_parisc_clut224;
  25. extern const struct linux_logo logo_sgi_clut224;
  26. extern const struct linux_logo logo_sun_clut224;
  27. extern const struct linux_logo logo_superh_mono;
  28. extern const struct linux_logo logo_superh_vga16;
  29. extern const struct linux_logo logo_superh_clut224;
  30. extern const struct linux_logo logo_m32r_clut224;
  31. static int nologo;
  32. module_param(nologo, bool, 0);
  33. MODULE_PARM_DESC(nologo, "Disables startup logo");
  34. /* logo's are marked __initdata. Use __init_refok to tell
  35. * modpost that it is intended that this function uses data
  36. * marked __initdata.
  37. */
  38. const struct linux_logo * __init_refok fb_find_logo(int depth)
  39. {
  40. const struct linux_logo *logo = NULL;
  41. if (nologo)
  42. return NULL;
  43. if (depth >= 1) {
  44. #ifdef CONFIG_LOGO_LINUX_MONO
  45. /* Generic Linux logo */
  46. logo = &logo_linux_mono;
  47. #endif
  48. #ifdef CONFIG_LOGO_SUPERH_MONO
  49. /* SuperH Linux logo */
  50. logo = &logo_superh_mono;
  51. #endif
  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. if (depth >= 8) {
  64. #ifdef CONFIG_LOGO_LINUX_CLUT224
  65. /* Generic Linux logo */
  66. logo = &logo_linux_clut224;
  67. #endif
  68. #ifdef CONFIG_LOGO_DEC_CLUT224
  69. /* DEC Linux logo on MIPS/MIPS64 or ALPHA */
  70. #ifndef CONFIG_ALPHA
  71. if (mips_machgroup == MACH_GROUP_DEC)
  72. #endif
  73. logo = &logo_dec_clut224;
  74. #endif
  75. #ifdef CONFIG_LOGO_MAC_CLUT224
  76. /* Macintosh Linux logo on m68k */
  77. if (MACH_IS_MAC)
  78. logo = &logo_mac_clut224;
  79. #endif
  80. #ifdef CONFIG_LOGO_PARISC_CLUT224
  81. /* PA-RISC Linux logo */
  82. logo = &logo_parisc_clut224;
  83. #endif
  84. #ifdef CONFIG_LOGO_SGI_CLUT224
  85. /* SGI Linux logo on MIPS/MIPS64 and VISWS */
  86. #ifndef CONFIG_X86_VISWS
  87. if (mips_machgroup == MACH_GROUP_SGI)
  88. #endif
  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. }
  106. EXPORT_SYMBOL_GPL(fb_find_logo);