1/* $NetBSD: pciio.h,v 1.5 2016/09/24 23:12:54 mrg Exp $ */
2
3/*
4 * Copyright 2001 Wasabi Systems, Inc.
5 * All rights reserved.
6 *
7 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed for the NetBSD Project by
20 * Wasabi Systems, Inc.
21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22 * or promote products derived from this software without specific prior
23 * written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
36 */
37
38#ifndef _DEV_PCI_PCIIO_H_
39#define _DEV_PCI_PCIIO_H_
40
41/*
42 * User -> kernel interface for PCI bus access.
43 */
44
45#include <sys/ioccom.h>
46
47/*
48 * pciio_cfgreg:
49 *
50 * Representation of a PCI config space register.
51 */
52struct pciio_cfgreg {
53 u_int reg; /* offset into PCI configuration space */
54 uint32_t val; /* value of the register */
55};
56
57/*
58 * Read and write PCI configuration space registers on a
59 * specific device.
60 */
61#define PCI_IOC_CFGREAD _IOWR('P', 0, struct pciio_cfgreg)
62#define PCI_IOC_CFGWRITE _IOW('P', 1, struct pciio_cfgreg)
63
64/*
65 * pciio_bdf_cfgreg:
66 *
67 * Like pciio_cfgreg, except for any bus/dev/func within
68 * a given PCI domain.
69 */
70struct pciio_bdf_cfgreg {
71 u_int bus;
72 u_int device;
73 u_int function;
74 struct pciio_cfgreg cfgreg;
75};
76
77/*
78 * Read and write PCI configuration space registers on any
79 * device within a given PCI domain.
80 */
81#define PCI_IOC_BDF_CFGREAD _IOWR('P', 2, struct pciio_bdf_cfgreg)
82#define PCI_IOC_BDF_CFGWRITE _IOW('P', 3, struct pciio_bdf_cfgreg)
83
84/*
85 * pciio_businfo:
86 *
87 * Information for a PCI bus (autoconfiguration node) instance.
88 */
89struct pciio_businfo {
90 u_int busno; /* bus number */
91 u_int maxdevs; /* max devices on bus */
92};
93
94#define PCI_IOC_BUSINFO _IOR('P', 4, struct pciio_businfo)
95
96/*
97 * pciio_drvname:
98 *
99 * Driver info for a PCI device (autoconfiguration node) instance.
100 */
101
102/* The old drvname must be run on the correct bus. */
103#define PCI_IO_DRVNAME_LEN 16
104struct pciio_drvname {
105 u_int device; /* in: device number */
106 u_int function; /* in: function number */
107 char name[PCI_IO_DRVNAME_LEN];
108};
109#define PCI_IOC_DRVNAME _IOWR('P', 5, struct pciio_drvname)
110
111struct pciio_drvnameonbus {
112 u_int bus; /* in: (autoconf) bus number */
113 u_int device; /* in: device number */
114 u_int function; /* in: function number */
115 char name[PCI_IO_DRVNAME_LEN];
116};
117#define PCI_IOC_DRVNAMEONBUS _IOWR('P', 5, struct pciio_drvnameonbus)
118
119
120#endif /* _DEV_PCI_PCIIO_H_ */
121