xref: /freebsd/sys/dev/ofw/ofwpci.h (revision fed1ca4b719c56c930f2259d80663cd34be812bb)
1 /*-
2  * Copyright (c) 2011 Nathan Whitehorn
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  * $FreeBSD$
27  */
28 
29 #ifndef _DEV_OFW_OFWPCI_H_
30 #define	_DEV_OFW_OFWPCI_H_
31 
32 /*
33  * Export class definition for inheritance purposes
34  */
35 DECLARE_CLASS(ofw_pci_driver);
36 
37 struct ofw_pci_cell_info {
38 	pcell_t host_address_cells;
39 	pcell_t pci_address_cell;
40 	pcell_t size_cells;
41  };
42 
43 struct ofw_pci_range {
44 	uint32_t	pci_hi;
45 	uint64_t	pci;
46 	uint64_t	host;
47 	uint64_t	size;
48 };
49 
50 /*
51  * Quirks for some adapters
52  */
53 enum {
54 	OFW_PCI_QUIRK_RANGES_ON_CHILDREN = 1,
55 };
56 
57 struct ofw_pci_softc {
58 	device_t	sc_dev;
59 	phandle_t	sc_node;
60 	int		sc_bus;
61 	int		sc_initialized;
62 	int		sc_quirks;
63 
64 	struct ofw_pci_range		*sc_range;
65 	int				sc_nrange;
66 	struct ofw_pci_cell_info	*sc_cell_info;
67 
68 	struct rman			sc_io_rman;
69 	struct rman			sc_mem_rman;
70 	bus_space_tag_t			sc_memt;
71 	bus_dma_tag_t			sc_dmat;
72 
73 	struct ofw_bus_iinfo		sc_pci_iinfo;
74 };
75 
76 int ofw_pci_init(device_t);
77 int ofw_pci_attach(device_t);
78 int ofw_pci_read_ivar(device_t, device_t, int, uintptr_t *);
79 int ofw_pci_write_ivar(device_t, device_t, int, uintptr_t);
80 int ofw_pci_route_interrupt(device_t, device_t, int);
81 int ofw_pci_nranges(phandle_t, struct ofw_pci_cell_info *);
82 
83 #endif /* _DEV_OFW_OFWPCI_H_ */
84