Subversion Repositories HelenOS

Rev

Rev 3790 | Rev 4151 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
1287 vana 1
/*
2071 jermar 2
 * Copyright (c) 2006 Jakub Vana
1287 vana 3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
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
15
 *   derived from this software without specific prior written permission.
16
 *
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
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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
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
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
1754 jermar 29
/** @addtogroup ia32   
1702 cejka 30
 * @{
31
 */
1754 jermar 32
/**
33
 * @file
34
 * @brief VESA frame buffer driver.
1702 cejka 35
 */
36
 
1287 vana 37
#ifdef CONFIG_FB
38
 
39
#include <genarch/fb/fb.h>
1993 decky 40
#include <genarch/fb/visuals.h>
1477 decky 41
#include <arch/drivers/vesa.h>
1287 vana 42
#include <putchar.h>
43
#include <mm/page.h>
1289 vana 44
#include <mm/frame.h>
1287 vana 45
#include <mm/as.h>
46
#include <arch/mm/page.h>
47
#include <synch/spinlock.h>
1310 jermar 48
#include <arch/asm.h>
1287 vana 49
#include <arch/types.h>
50
#include <memstr.h>
1310 jermar 51
#include <bitops.h>
1287 vana 52
 
1780 jermar 53
uint32_t vesa_ph_addr;
54
uint16_t vesa_width;
55
uint16_t vesa_height;
56
uint16_t vesa_bpp;
57
uint16_t vesa_scanline;
1287 vana 58
 
59
int vesa_present(void)
60
{
4096 decky 61
    if ((vesa_width != 0xffff) && (vesa_height != 0xffff))
1310 jermar 62
        return true;
4096 decky 63
 
1287 vana 64
    return false;
65
}
66
 
67
void vesa_init(void)
68
{
1993 decky 69
    unsigned int visual;
70
 
71
    switch (vesa_bpp) {
72
    case 8:
73
        visual = VISUAL_INDIRECT_8;
74
        break;
75
    case 16:
76
        visual = VISUAL_RGB_5_6_5;
77
        break;
78
    case 24:
79
        visual = VISUAL_RGB_8_8_8;
80
        break;
81
    case 32:
82
        visual = VISUAL_RGB_0_8_8_8;
83
        break;
84
    default:
3790 svoboda 85
        panic("Unsupported bits per pixel.");
1993 decky 86
    }
87
 
3672 jermar 88
    fb_properties_t vesa_props = {
89
        .addr = vesa_ph_addr,
90
        .offset = 0,
91
        .x = vesa_width,
92
        .y = vesa_height,
93
        .scan = vesa_scanline,
94
        .visual = visual,
95
    };
96
    fb_init(&vesa_props);
1287 vana 97
}
98
 
3707 decky 99
void vesa_redraw(void)
100
{
101
    fb_redraw();
102
}
103
 
1287 vana 104
#endif
1702 cejka 105
 
1754 jermar 106
/** @}
1702 cejka 107
 */