vesa.c

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00001 /*
00002  * Copyright (C) 2006 Jakub Vana
00003  * All rights reserved.
00004  *
00005  * Redistribution and use in source and binary forms, with or without
00006  * modification, are permitted provided that the following conditions
00007  * are met:
00008  *
00009  * - Redistributions of source code must retain the above copyright
00010  *   notice, this list of conditions and the following disclaimer.
00011  * - Redistributions in binary form must reproduce the above copyright
00012  *   notice, this list of conditions and the following disclaimer in the
00013  *   documentation and/or other materials provided with the distribution.
00014  * - The name of the author may not be used to endorse or promote products
00015  *   derived from this software without specific prior written permission.
00016  *
00017  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
00018  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00019  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
00020  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
00021  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
00022  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
00023  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
00024  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00025  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
00026  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00027  */
00028 
00035 #ifdef CONFIG_FB
00036 
00037 #include <genarch/fb/fb.h>
00038 #include <arch/drivers/vesa.h>
00039 #include <putchar.h>
00040 #include <mm/page.h>
00041 #include <mm/frame.h>
00042 #include <mm/as.h>
00043 #include <arch/mm/page.h>
00044 #include <synch/spinlock.h>
00045 #include <arch/asm.h>
00046 #include <arch/types.h>
00047 #include <typedefs.h>
00048 #include <memstr.h>
00049 #include <bitops.h>
00050 
00051 __u32 vesa_ph_addr;
00052 __u16 vesa_width;
00053 __u16 vesa_height;
00054 __u16 vesa_bpp;
00055 __u16 vesa_scanline;
00056 
00057 int vesa_present(void)
00058 {
00059         if (vesa_width != 0xffff)
00060                 return true;
00061         if (vesa_height != 0xffff)
00062                 return true;
00063         return false;
00064 }
00065 
00066 void vesa_init(void)
00067 {
00068         fb_init(vesa_ph_addr, vesa_width, vesa_height, vesa_bpp, vesa_scanline);
00069 }
00070 
00071 #endif
00072 

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