1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2015-2016 Landon Fuller <landon@landonf.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer,
12 *    without modification.
13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
14 *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
15 *    redistribution must be conditioned upon including a substantially
16 *    similar Disclaimer requirement for further binary redistribution.
17 *
18 * NO WARRANTY
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
21 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
22 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
23 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
24 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
27 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
29 * THE POSSIBILITY OF SUCH DAMAGES.
30 *
31 * $FreeBSD$
32 */
33
34#ifndef _BHND_CORES_PCIE2_BHND_PCI_HOSTBVAR_H_
35#define _BHND_CORES_PCIE2_BHND_PCI_HOSTBVAR_H_
36
37/*
38 * PCIe-Gen2 Host Bridge definitions.
39 */
40
41#include <sys/param.h>
42#include <sys/bus.h>
43
44#include "bhnd_pcie2_var.h"
45
46DECLARE_CLASS(bhnd_pcie2_hostb_driver);
47
48/*
49 * PCIe-Gen2 endpoint-mode device quirks
50 */
51enum {
52	/**
53	 * The PCIe SerDes output should be configured with an amplitude of
54	 * 1214mVpp and a differential output de-emphasis of -8.46dB.
55	 *
56	 * The exact issue this workaround resolves is unknown.
57	 */
58	BHND_PCIE2_QUIRK_SERDES_TXDRV_DEEMPH	= (1<<0),
59};
60
61/**
62 * bhnd_pci_hostb driver instance state.
63 */
64struct bhnd_pcie2hb_softc {
65	struct bhnd_pcie2_softc	common;		/**< common bhnd_pcie2 state */
66	device_t		dev;
67	device_t		pci_dev;	/**< host PCI device */
68	uint32_t		quirks;		/**< hostb device quirks */
69};
70
71#endif /* _BHND_CORES_PCIE2_BHND_PCI_HOSTBVAR_H_ */
72