1/*-
2 * Copyright (c) 2015-2016 Landon Fuller <landon@landonf.org>
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 *    without modification.
11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12 *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
13 *    redistribution must be conditioned upon including a substantially
14 *    similar Disclaimer requirement for further binary redistribution.
15 *
16 * NO WARRANTY
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
20 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
22 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
25 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
27 * THE POSSIBILITY OF SUCH DAMAGES.
28 */
29
30#include <sys/cdefs.h>
31__FBSDID("$FreeBSD$");
32
33#include <sys/param.h>
34#include <sys/kernel.h>
35#include <sys/bus.h>
36#include <sys/module.h>
37
38#include <dev/bhnd/bhnd_ids.h>
39#include <dev/bhnd/bhnd.h>
40
41#include "bhndbvar.h"
42
43/*
44 * bhnd(4) driver mix-in providing a shared common methods for
45 * bhnd devices attached via a bhndb bridge.
46 */
47
48static int
49bhnd_bhndb_read_board_info(device_t dev, device_t child,
50    struct bhnd_board_info *info)
51{
52	int	error;
53
54	/* Initialize with NVRAM-derived values */
55	if ((error = bhnd_bus_generic_read_board_info(dev, child, info)))
56		return (error);
57
58	/* Let the bridge fill in any additional data */
59	return (BHNDB_POPULATE_BOARD_INFO(device_get_parent(dev), dev, info));
60}
61
62static bhnd_attach_type
63bhnd_bhndb_get_attach_type(device_t dev, device_t child)
64{
65	/* It's safe to assume that a bridged device is always an adapter */
66	return (BHND_ATTACH_ADAPTER);
67}
68
69static device_method_t bhnd_bhndb_methods[] = {
70	/* BHND interface */
71	DEVMETHOD(bhnd_bus_get_attach_type,	bhnd_bhndb_get_attach_type),
72	DEVMETHOD(bhnd_bus_read_board_info,	bhnd_bhndb_read_board_info),
73
74	DEVMETHOD_END
75};
76
77DEFINE_CLASS_0(bhnd, bhnd_bhndb_driver, bhnd_bhndb_methods, 0);
78