xref: /freebsd/sys/dev/ofw/ofwpci.h (revision 2e3f49888ec8851bafb22011533217487764fdb0)
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 
27 #ifndef _DEV_OFW_OFWPCI_H_
28 #define	_DEV_OFW_OFWPCI_H_
29 
30 /*
31  * Export class definition for inheritance purposes
32  */
33 DECLARE_CLASS(ofw_pcib_driver);
34 
35 struct ofw_pci_cell_info {
36 	pcell_t host_address_cells;
37 	pcell_t pci_address_cell;
38 	pcell_t size_cells;
39  };
40 
41 struct ofw_pci_range {
42 	uint32_t	pci_hi;
43 	uint64_t	pci;
44 	uint64_t	host;
45 	uint64_t	size;
46 };
47 
48 /*
49  * Quirks for some adapters
50  */
51 enum {
52 	OFW_PCI_QUIRK_RANGES_ON_CHILDREN = 1,
53 };
54 
55 struct ofw_pci_softc {
56 	device_t	sc_dev;
57 	phandle_t	sc_node;
58 	int		sc_bus;
59 	int		sc_initialized;
60 	int		sc_quirks;
61 	int		sc_have_pmem;
62 
63 	struct ofw_pci_range		*sc_range;
64 	int				sc_nrange;
65 	uint64_t			sc_range_mask;
66 	struct ofw_pci_cell_info	*sc_cell_info;
67 
68 	struct rman			sc_io_rman;
69 	struct rman			sc_mem_rman;
70 	struct rman			sc_pmem_rman;
71 	bus_space_tag_t			sc_memt;
72 	bus_dma_tag_t			sc_dmat;
73 	int				sc_pci_domain;
74 
75 	struct ofw_bus_iinfo		sc_pci_iinfo;
76 };
77 
78 int ofw_pcib_init(device_t);
79 void ofw_pcib_fini(device_t);
80 int ofw_pcib_attach(device_t);
81 int ofw_pcib_read_ivar(device_t, device_t, int, uintptr_t *);
82 int ofw_pcib_write_ivar(device_t, device_t, int, uintptr_t);
83 int ofw_pcib_route_interrupt(device_t, device_t, int);
84 int ofw_pcib_nranges(phandle_t, struct ofw_pci_cell_info *);
85 
86 #endif /* _DEV_OFW_OFWPCI_H_ */
87