fbdev: move logo externs to header file
[sfrench/cifs-2.6.git] / 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 static int nologo;
25 module_param(nologo, bool, 0);
26 MODULE_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  */
32 const 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 }
106 EXPORT_SYMBOL_GPL(fb_find_logo);