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  * $FreeBSD$
30  */
31 
32 #ifndef _BHND_CORES_PCIE2_BHND_PCI_HOSTBVAR_H_
33 #define _BHND_CORES_PCIE2_BHND_PCI_HOSTBVAR_H_
34 
35 /*
36  * PCIe-Gen2 Host Bridge definitions.
37  */
38 
39 #include <sys/param.h>
40 #include <sys/bus.h>
41 
42 #include "bhnd_pcie2_var.h"
43 
44 DECLARE_CLASS(bhnd_pcie2_hostb_driver);
45 
46 
47 /*
48  * PCIe-Gen2 endpoint-mode device quirks
49  */
50 enum {
51 	/**
52 	 * The PCIe SerDes output should be configured with an amplitude of
53 	 * 1214mVpp and a differential output de-emphasis of -8.46dB.
54 	 *
55 	 * The exact issue this workaround resolves is unknown.
56 	 */
57 	BHND_PCIE2_QUIRK_SERDES_TXDRV_DEEMPH	= (1<<0),
58 };
59 
60 
61 /**
62  * bhnd_pci_hostb driver instance state.
63  */
64 struct 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 
72 #endif /* _BHND_CORES_PCIE2_BHND_PCI_HOSTBVAR_H_ */