1 /* $NetBSD: pciio.h,v 1.4 2014/07/25 01:38:26 mrg Exp $ */
4 * Copyright 2001 Wasabi Systems, Inc.
7 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
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
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.
38 #ifndef _DEV_PCI_PCIIO_H_
39 #define _DEV_PCI_PCIIO_H_
42 * User -> kernel interface for PCI bus access.
45 #include <sys/ioccom.h>
50 * Representation of a PCI config space register.
53 u_int reg
; /* offset into PCI configuration space */
54 uint32_t val
; /* value of the register */
58 * Read and write PCI configuration space registers on a
61 #define PCI_IOC_CFGREAD _IOWR('P', 0, struct pciio_cfgreg)
62 #define PCI_IOC_CFGWRITE _IOW('P', 1, struct pciio_cfgreg)
67 * Like pciio_cfgreg, except for any bus/dev/func within
70 struct pciio_bdf_cfgreg
{
74 struct pciio_cfgreg cfgreg
;
78 * Read and write PCI configuration space registers on any
79 * device within a given PCI domain.
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)
87 * Information for a PCI bus (autoconfiguration node) instance.
89 struct pciio_businfo
{
90 u_int busno
; /* bus number */
91 u_int maxdevs
; /* max devices on bus */
94 #define PCI_IOC_BUSINFO _IOR('P', 4, struct pciio_businfo)
99 * Driver info for a PCI device (autoconfiguration node) instance.
100 * Must be run on the correct bus.
103 #define PCI_IO_DRVNAME_LEN 16
104 struct pciio_drvname
{
105 u_int device
; /* in: device number */
106 u_int function
; /* in: function number */
107 char name
[PCI_IO_DRVNAME_LEN
];
110 #define PCI_IOC_DRVNAME _IOWR('P', 5, struct pciio_drvname)
115 int flags
; /* reserved, must be 0 */
119 char reserved
[36]; /* reserved, must be 0 */
124 #define PCI_IOC_MAP _IOWR('P', 100, struct pciio_map)
125 #define PCI_IOC_UNMAP _IOW('P', 101, struct pciio_map)
134 #define PCI_IOC_RESERVE _IOW('P', 102, struct pciio_acl)
135 #define PCI_IOC_RELEASE _IOW('P', 103, struct pciio_acl)
136 #endif /* defined(__minix) */
137 #endif /* _DEV_PCI_PCIIO_H_ */