Subversion Repositories HelenOS-historic

Rev

Rev 1292 | Rev 1311 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 1292 Rev 1310
1 
/*
 1 
/*
2 
 * Copyright (C) 2006-2006 Jakub Vana
 2 
 * Copyright (C) 2006 Jakub Vana
3 
 * All rights reserved.
 3 
 * All rights reserved.
4 
 *
 4 
 *
5 
 * Redistribution and use in source and binary forms, with or without
 5 
 * Redistribution and use in source and binary forms, with or without
6 
 * modification, are permitted provided that the following conditions
 6 
 * modification, are permitted provided that the following conditions
7 
 * are met:
 7 
 * are met:
8 
 *
 8 
 *
9 
 * - Redistributions of source code must retain the above copyright
 9 
 * - Redistributions of source code must retain the above copyright
10 
 *   notice, this list of conditions and the following disclaimer.
 10 
 *   notice, this list of conditions and the following disclaimer.
11 
 * - Redistributions in binary form must reproduce the above copyright
 11 
 * - Redistributions in binary form must reproduce the above copyright
12 
 *   notice, this list of conditions and the following disclaimer in the
 12 
 *   notice, this list of conditions and the following disclaimer in the
13 
 *   documentation and/or other materials provided with the distribution.
 13 
 *   documentation and/or other materials provided with the distribution.
14 
 * - The name of the author may not be used to endorse or promote products
 14 
 * - The name of the author may not be used to endorse or promote products
15 
 *   derived from this software without specific prior written permission.
 15 
 *   derived from this software without specific prior written permission.
16 
 *
 16 
 *
17 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 17 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 18 
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 19 
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 20 
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 21 
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 22 
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 23 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 24 
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 25 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 26 
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 
 */
 27 
 */
28 
 
 28 
 
29 
#ifdef CONFIG_FB
 29 
#ifdef CONFIG_FB
30 
 
 30 
 
31 
#include <genarch/fb/fb.h>
 31 
#include <genarch/fb/fb.h>
32 
#include <arch/vesa.h>
 32 
#include <arch/vesa.h>
33 
#include <putchar.h>
 33 
#include <putchar.h>
34 
#include <mm/page.h>
 34 
#include <mm/page.h>
35 
#include <mm/frame.h>
 35 
#include <mm/frame.h>
36 
#include <mm/as.h>
 36 
#include <mm/as.h>
37 
#include <arch/mm/page.h>
 37 
#include <arch/mm/page.h>
38 
#include <synch/spinlock.h>
 38 
#include <synch/spinlock.h>
39 
#include <arch/types.h>
 - 
 
40 
#include <arch/asm.h>
 39 
#include <arch/asm.h>
- 
 
 40 
#include <arch/types.h>
- 
 
 41 
#include <typedefs.h>
41 
#include <memstr.h>
 42 
#include <memstr.h>
- 
 
 43 
#include <bitops.h>
42 
 
 44 
 
43 
__u32 vesa_ph_addr;
 45 
__u32 vesa_ph_addr;
44 
__u16 vesa_width;
 46 
__u16 vesa_width;
45 
__u16 vesa_height;
 47 
__u16 vesa_height;
46 
__u16 vesa_bpp;
 48 
__u16 vesa_bpp;
47 
__u16 vesa_scanline;
 49 
__u16 vesa_scanline;
48 
 
 50 
 
49 
 
 - 
 
50 
int vesa_present(void)
 51 
int vesa_present(void)
51 
{
 52 
{
52 
    if(vesa_width!=0xffff) return true;
 53 
    if (vesa_width != 0xffff)
- 
 
 54 
        return true;
53 
    if(vesa_height!=0xffff) return true;
 55 
    if (vesa_height != 0xffff)
- 
 
 56 
        return true;
54 
    return false;
 57 
    return false;
55 
}
 58 
}
56 
 
 59 
 
57 
 
 - 
 
58 
static __u32 log2(__u32 x)
 60 
static count_t vesa_frame_order(void)
59 
{
 61 
{
60 
    __u32 l=2;
 62 
    __u32 x = vesa_scanline*vesa_height;
61 
    if(x<=PAGE_SIZE) return PAGE_WIDTH+1;
 63 
    if (x <= FRAME_SIZE)
- 
 
 64 
        return 1;
62 
   
 65 
 
63 
    x--;
 - 
 
64 
    while(x>>=1) l++;
 66 
    return (fnzb32(x - 1) + 1) - FRAME_WIDTH;
65 
    return l;
 - 
 
66 
}
 67 
}
67 
 
 68 
 
68 
void vesa_init(void)
 69 
void vesa_init(void)
69 
{
 70 
{
70 
    int a;
 71 
    int a;
- 
 
 72 
    __address vram_lin_addr;
71 
 
 73 
 
72 
    __address videoram_lin_addr;
 - 
 
73 
 
 - 
 
74 
    videoram_lin_addr=PA2KA(PFN2ADDR(frame_alloc( log2(vesa_scanline*vesa_height) -FRAME_WIDTH,FRAME_KA)));
 74 
    vram_lin_addr = PA2KA(PFN2ADDR(frame_alloc(vesa_frame_order(), FRAME_KA)));
75 
    /* Map videoram */
 75 
    /* Map videoram */
76 
    for(a=0;a<((vesa_scanline*vesa_height+PAGE_SIZE-1)>>PAGE_WIDTH);a++)
 76 
    for (a = 0; a < ((vesa_scanline * vesa_height + PAGE_SIZE - 1) >> PAGE_WIDTH); a++)
77 
    page_mapping_insert(AS_KERNEL, videoram_lin_addr+a*4096, vesa_ph_addr+a*4096, PAGE_NOT_CACHEABLE);
 77 
        page_mapping_insert(AS_KERNEL, vram_lin_addr+a*4096, vesa_ph_addr+a*4096, PAGE_NOT_CACHEABLE);
78 
   
 78 
 
79 
    fb_init( videoram_lin_addr,vesa_width,vesa_height,vesa_bpp,vesa_scanline);
 79 
    fb_init(vram_lin_addr, vesa_width, vesa_height, vesa_bpp, vesa_scanline);
80 
}
 80 
}
81 
 
 81 
 
82 
#endif
 82 
#endif
83 
 
 - 
 
84 
 
 83