freebsd-dev/sys/dev/fdt/simplebus.h
Ian Lepore ecaecbc7d8 Make simplebus a base class of ofwbus. This allows the elimination of
duplicated code in the two classes, and also allows devices in FDT-based
systems to declare simplebus as their parent and still work correctly
when the FDT data describes the device at the root of the tree rather
than as a child of a simplebus (which is common for interrupt, clock,
and power controllers).

Differential Revision:	https://reviews.freebsd.org/D1990
Submitted by:	Michal Meloun
2015-03-27 23:10:15 +00:00

65 lines
2.1 KiB
C

/*-
* Copyright (c) 2013 Nathan Whitehorn
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _FDT_SIMPLEBUS_H
#define _FDT_SIMPLEBUS_H
#include <dev/ofw/ofw_bus.h>
/* FDT simplebus */
DECLARE_CLASS(simplebus_driver);
struct simplebus_range {
uint64_t bus;
uint64_t host;
uint64_t size;
};
/* devinfo and softc */
struct simplebus_softc {
device_t dev;
phandle_t node;
struct simplebus_range *ranges;
int nranges;
pcell_t acells, scells;
};
struct simplebus_devinfo {
struct ofw_bus_devinfo obdinfo;
struct resource_list rl;
};
void simplebus_init(device_t dev, phandle_t node);
device_t simplebus_add_device(device_t dev, phandle_t node, u_int order,
const char *name, int unit, struct simplebus_devinfo *di);
struct simplebus_devinfo *simplebus_setup_dinfo(device_t dev, phandle_t node,
struct simplebus_devinfo *di);
#endif /* _FDT_SIMPLEBUS_H */