xref: /freebsd/sys/isa/isa_if.m (revision 031beb4e239bfce798af17f5fe8dba8bcaf13d99)
1#-
2# Copyright (c) 1999 Doug Rabson
3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions
7# are met:
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.
13#
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
24# SUCH DAMAGE.
25#
26#
27
28#include <sys/bus.h>
29#include <isa/isavar.h>
30
31INTERFACE isa;
32
33#
34# Add a Plug-and-play configuration to the device. Configurations with
35# a lower priority are preferred.
36#
37METHOD int add_config {
38	device_t	dev;
39	device_t	child;
40	int		priority;
41	struct isa_config *config;
42};
43
44#
45# Register a function which can be called to configure a device with
46# a given set of resources. The function will be called with a struct
47# isa_config representing the desired configuration and a flag to
48# state whether the device should be enabled.
49#
50METHOD void set_config_callback {
51	device_t	dev;
52	device_t	child;
53	isa_config_cb	*fn;
54	void		*arg;
55};
56
57#
58# A helper method for implementing probe methods for PnP compatible
59# drivers. The driver calls this method with a list of PnP ids and
60# descriptions and it returns zero if one of the ids matches or ENXIO
61# otherwise.
62#
63# If the device is not plug-and-play compatible, this method returns
64# ENOENT, allowing the caller to fall back to heuristic probing
65# techniques.
66#
67METHOD int pnp_probe {
68	device_t	dev;
69	device_t	child;
70	struct isa_pnp_id *ids;
71};
72