xref: /freebsd/sys/dev/fdt/simplebus.h (revision 95ee2897)
1 /*-
2  * Copyright (c) 2013 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	_FDT_SIMPLEBUS_H
28 #define	_FDT_SIMPLEBUS_H
29 
30 #include <dev/ofw/ofw_bus.h>
31 
32 /* FDT simplebus */
33 DECLARE_CLASS(simplebus_driver);
34 
35 struct simplebus_range {
36 	uint64_t bus;
37 	uint64_t host;
38 	uint64_t size;
39 };
40 
41 /* devinfo and softc */
42 struct simplebus_softc {
43 	device_t dev;
44 	phandle_t node;
45 
46 	struct simplebus_range *ranges;
47 	int nranges;
48 #define	SB_FLAG_NO_RANGES	(1 << 0) /* Bus doesn't have ranges property */
49 	int flags;
50 
51 	pcell_t acells, scells;
52 };
53 
54 struct simplebus_devinfo {
55 	struct ofw_bus_devinfo	obdinfo;
56 	struct resource_list	rl;
57 };
58 
59 void simplebus_init(device_t dev, phandle_t node);
60 device_t simplebus_add_device(device_t dev, phandle_t node, u_int order,
61     const char *name, int unit, struct simplebus_devinfo *di);
62 struct simplebus_devinfo *simplebus_setup_dinfo(device_t dev, phandle_t node,
63     struct simplebus_devinfo *di);
64 int simplebus_fill_ranges(phandle_t node,
65     struct simplebus_softc *sc);
66 
67 int simplebus_attach(device_t dev);
68 int simplebus_attach_impl(device_t dev);
69 int simplebus_detach(device_t dev);
70 
71 #endif	/* _FDT_SIMPLEBUS_H */
72