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
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
/**************************************************************************
**
** $Id: pcibus.h,v 1.2 1994/11/02 23:47:14 se Exp $
**
** Declarations for pci bus driver.
**
** 386bsd / FreeBSD
**
**-------------------------------------------------------------------------
**
** Copyright (c) 1994 Wolfgang Stanglmeier. All rights reserved.
**
** 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 ``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.
**
***************************************************************************
*/
#ifndef __PCI_BUS_H__
#define __PCI_BUS_H__
/*-----------------------------------------------------------------
**
** The following functions are provided by the pci bios.
** They are used only by the pci configuration.
**
** pb_mode():
** Probes for a pci system.
** Returns 1 or 2 for pci configuration mechanism.
** Returns 0 if no pci system.
**
** pb_tag():
** Gets a handle for accessing the pci configuration
** space.
** This handle is given to the mapping functions (see
** above) or to the read/write functions.
**
** pb_read():
** Read a long word from the pci configuration space.
** Requires a tag (from pcitag) and the register
** number (should be a long word aligned one).
**
** pb_write():
** Writes a long word to the pci configuration space.
** Requires a tag (from pcitag), the register number
** (should be a long word aligned one), and a value.
**
** pb_regint():
** Register an interupt handler for a pci device.
** Requires a tag (from pcitag), the handler function
** and it's argument, and an interupt mask.
**
**-----------------------------------------------------------------
*/
struct pcibus {
char *pb_name;
int (*pb_mode ) (void);
pcici_t (*pb_tag ) (u_char bus, u_char device, u_char func);
u_long (*pb_read ) (pcici_t tag, u_long reg);
void (*pb_write ) (pcici_t tag, u_long reg, u_long data);
int (*pb_regint) (pcici_t tag, int(*func)(), void*arg, unsigned*mp);
};
/*
** The following structure should be generated by the driver
*/
extern struct linker_set pcibus_set;
#endif
|
