2 # Copyright (c) 2000 Doug Rabson
5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions
8 # 1. Redistributions of source code must retain the above copyright
9 # notice, this list of conditions and the following disclaimer.
10 # 2. Redistributions in binary form must reproduce the above copyright
11 # notice, this list of conditions and the following disclaimer in the
12 # documentation and/or other materials provided with the distribution.
14 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 # $FreeBSD: src/sys/pci/pcib_if.m,v 1.2 2000/10/16 19:43:44 imp Exp $
27 # $DragonFly: src/sys/bus/pci/pcib_if.m,v 1.1 2004/01/15 18:22:22 joerg Exp $
35 # Return the number of slots on the attached PCI bus.
42 # Read configuration space on the PCI bus. The bus, slot and func
43 # arguments determine the device which is being read and the reg
44 # argument is a byte offset into configuration space for that
45 # device. The width argument (which should be 1, 2 or 4) specifies how
46 # many byte of configuration space to read from that offset.
48 METHOD u_int32_t read_config {
58 # Write configuration space on the PCI bus. The bus, slot and func
59 # arguments determine the device which is being written and the reg
60 # argument is a byte offset into configuration space for that
61 # device. The value field is written to the configuration space, with
62 # the number of bytes written depending on the width argument.
64 METHOD void write_config {
75 # Route an interrupt. Returns a value suitable for stuffing into
76 # a device's interrupt register.
78 METHOD int route_interrupt {