logo.c

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/*
 *  Linux logo to be displayed on boot
 *
 *  Copyright (C) 1996 Larry Ewing ([email protected])
 *  Copyright (C) 1996,1998 Jakub Jelinek ([email protected])
 *  Copyright (C) 2001 Greg Banks <[email protected]>
 *  Copyright (C) 2001 Jan-Benedict Glaw <[email protected]>
 *  Copyright (C) 2003 Geert Uytterhoeven <[email protected]>
 */

#include <linux/linux_logo.h>
#include <linux/stddef.h>
#include <linux/module.h>

#ifdef CONFIG_M68K
#include <asm/setup.h>
#endif

#ifdef CONFIG_MIPS
#include <asm/bootinfo.h>
#endif

static bool nologo;
module_param(nologo, bool, 0);
MODULE_PARM_DESC(nologo, "Disables startup logo");

/* logo's are marked __initdata. Use __init_refok to tell
 * modpost that it is intended that this function uses data
 * marked __initdata.
 */
const struct linux_logo * __init_refok fb_find_logo(int depth)
{
    const struct linux_logo *logo = NULL;

    if (nologo)
        return NULL;

    if (depth >= 1) {
#ifdef CONFIG_LOGO_LINUX_MONO
        /* Generic Linux logo */
        logo = &logo_linux_mono;
#endif
#ifdef CONFIG_LOGO_SUPERH_MONO
        /* SuperH Linux logo */
        logo = &logo_superh_mono;
#endif
    }
    
    if (depth >= 4) {
#ifdef CONFIG_LOGO_LINUX_VGA16
        /* Generic Linux logo */
        logo = &logo_linux_vga16;
#endif
#ifdef CONFIG_LOGO_BLACKFIN_VGA16
        /* Blackfin processor logo */
        logo = &logo_blackfin_vga16;
#endif
#ifdef CONFIG_LOGO_SUPERH_VGA16
        /* SuperH Linux logo */
        logo = &logo_superh_vga16;
#endif
    }
    
    if (depth >= 8) {
#ifdef CONFIG_LOGO_LINUX_CLUT224
        /* Generic Linux logo */
        logo = &logo_linux_clut224;
#endif
#ifdef CONFIG_LOGO_BLACKFIN_CLUT224
        /* Blackfin Linux logo */
        logo = &logo_blackfin_clut224;
#endif
#ifdef CONFIG_LOGO_DEC_CLUT224
        /* DEC Linux logo on MIPS/MIPS64 or ALPHA */
        logo = &logo_dec_clut224;
#endif
#ifdef CONFIG_LOGO_MAC_CLUT224
        /* Macintosh Linux logo on m68k */
        if (MACH_IS_MAC)
            logo = &logo_mac_clut224;
#endif
#ifdef CONFIG_LOGO_PARISC_CLUT224
        /* PA-RISC Linux logo */
        logo = &logo_parisc_clut224;
#endif
#ifdef CONFIG_LOGO_SGI_CLUT224
        /* SGI Linux logo on MIPS/MIPS64 and VISWS */
        logo = &logo_sgi_clut224;
#endif
#ifdef CONFIG_LOGO_SUN_CLUT224
        /* Sun Linux logo */
        logo = &logo_sun_clut224;
#endif
#ifdef CONFIG_LOGO_SUPERH_CLUT224
        /* SuperH Linux logo */
        logo = &logo_superh_clut224;
#endif
#ifdef CONFIG_LOGO_M32R_CLUT224
        /* M32R Linux logo */
        logo = &logo_m32r_clut224;
#endif
    }
    return logo;
}
EXPORT_SYMBOL_GPL(fb_find_logo);