xref: /freebsd/sys/dev/pci/pci_host_generic.h (revision d9f0ce31900a48d1a2bfc1c8c86f79d1e831451a)
1 /*
2  * Copyright (c) 2015 Ruslan Bukin <br@bsdpad.com>
3  * Copyright (c) 2015 The FreeBSD Foundation
4  * All rights reserved.
5  *
6  * This software was developed by Semihalf.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  *
30  * $FreeBSD$
31  *
32  */
33 
34 #ifndef __PCI_HOST_GENERIC_H_
35 #define	__PCI_HOST_GENERIC_H_
36 
37 #define	MAX_RANGES_TUPLES	16
38 #define	MIN_RANGES_TUPLES	2
39 
40 struct pcie_range {
41 	uint64_t	pci_base;
42 	uint64_t	phys_base;
43 	uint64_t	size;
44 	uint64_t	flags;
45 #define	FLAG_IO		(1 << 0)
46 #define	FLAG_MEM	(1 << 1)
47 };
48 
49 struct generic_pcie_softc {
50 	struct pcie_range	ranges[MAX_RANGES_TUPLES];
51 	int			nranges;
52 	struct rman		mem_rman;
53 	struct rman		io_rman;
54 	struct resource		*res;
55 	struct resource		*res1;
56 	int			ecam;
57 	bus_space_tag_t		bst;
58 	bus_space_handle_t	bsh;
59 	device_t		dev;
60 	bus_space_handle_t	ioh;
61 #ifdef FDT
62 	struct ofw_bus_iinfo	pci_iinfo;
63 #endif
64 };
65 
66 extern devclass_t generic_pcie_devclass;
67 DECLARE_CLASS(generic_pcie_driver);
68 
69 struct resource *pci_host_generic_alloc_resource(device_t,
70     device_t, int, int *, rman_res_t, rman_res_t, rman_res_t, u_int);
71 int pci_host_generic_attach(device_t);
72 
73 #endif /* __PCI_HOST_GENERIC_H_ */
74