1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
/*
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
* Copyright (C) 2008 coresystems GmbH
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*/
#include <libpayload.h>
#include <pci.h>
u8 pci_read_config8(pcidev_t dev, u16 reg)
{
outl(dev | (reg & ~3), 0xCF8);
return inb(0xCFC + (reg & 3));
}
u16 pci_read_config16(pcidev_t dev, u16 reg)
{
outl(dev | (reg & ~3), 0xCF8);
return inw(0xCFC + (reg & 3));
}
u32 pci_read_config32(pcidev_t dev, u16 reg)
{
outl(dev | (reg & ~3), 0xCF8);
return inl(0xCFC + (reg & 3));
}
void pci_write_config8(pcidev_t dev, u16 reg, u8 val)
{
outl(dev | (reg & ~3), 0xCF8);
outb(val, 0xCFC + (reg & 3));
}
void pci_write_config16(pcidev_t dev, u16 reg, u16 val)
{
outl(dev | (reg & ~3), 0xCF8);
outw(val, 0xCFC + (reg & 3));
}
void pci_write_config32(pcidev_t dev, u16 reg, u32 val)
{
outl(dev | (reg & ~3), 0xCF8);
outl(val, 0xCFC + (reg & 3));
}
|
