Merge git://git.infradead.org/mtd-2.6
[linux-2.6] / 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);