/*
* Copyright (C) 2006-2006 Jakub Vana
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef CONFIG_FB
#include <genarch/fb/fb.h>
#include <arch/vesa.h>
#include <putchar.h>
#include <mm/page.h>
#include <mm/as.h>
#include <arch/mm/page.h>
#include <synch/spinlock.h>
#include <arch/types.h>
#include <arch/asm.h>
#include <memstr.h>
__u32 vesa_ph_addr;
__u16 vesa_width;
__u16 vesa_height;
__u16 vesa_bpp;
__u16 vesa_scanline;
int vesa_present(void)
{
if(vesa_width!=0xffff) return true;
if(vesa_height!=0xffff) return true;
return false;
}
void vesa_init(void)
{
int a;
/* Map videoram */
for(a=0;a<((vesa_scanline*vesa_height+PAGE_SIZE-1)>>PAGE_WIDTH);a++)
page_mapping_insert(AS_KERNEL, VIDEORAM_LIN_ADDR+a*4096, vesa_ph_addr+a*4096, PAGE_NOT_CACHEABLE);
fb_init( VIDEORAM_LIN_ADDR,vesa_width,vesa_height,vesa_bpp,vesa_scanline);
}
#endif