freebsd-skq/sys/dev/ofw/ofw_bus_subr.h
nwhitehorn 6c040d556a Add a set of helpers (ofw_bus_get_status() and ofw_bus_status_okay()) to
process "status" properties of OF nodes.

I've avoided adding new KOBJ methods here so that we don't have to modify
every ofw_bus in the tree. Since 100% of implementations of ofw_bus use
only ofw_bus_gen_*(), it might be worth garbage-collecting the other
methods as well.
2014-02-02 16:41:54 +00:00

100 lines
3.6 KiB
C

/*-
* Copyright (c) 2005 Marius Strobl <marius@FreeBSD.org>
* 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,
* without modification, immediately at the beginning of the file.
* 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 _DEV_OFW_OFW_BUS_SUBR_H_
#define _DEV_OFW_OFW_BUS_SUBR_H_
#include <sys/bus.h>
#include <dev/ofw/openfirm.h>
#include "ofw_bus_if.h"
#define ORIP_NOINT -1
#define ORIR_NOTFOUND 0xffffffff
struct ofw_bus_iinfo {
uint8_t *opi_imap;
uint8_t *opi_imapmsk;
int opi_imapsz;
pcell_t opi_addrc;
};
struct ofw_compat_data {
const char *ocd_str;
uintptr_t ocd_data;
};
/* Generic implementation of ofw_bus_if.m methods and helper routines */
int ofw_bus_gen_setup_devinfo(struct ofw_bus_devinfo *, phandle_t);
void ofw_bus_gen_destroy_devinfo(struct ofw_bus_devinfo *);
ofw_bus_get_compat_t ofw_bus_gen_get_compat;
ofw_bus_get_model_t ofw_bus_gen_get_model;
ofw_bus_get_name_t ofw_bus_gen_get_name;
ofw_bus_get_node_t ofw_bus_gen_get_node;
ofw_bus_get_type_t ofw_bus_gen_get_type;
/* Helper method to report interesting OF properties in pnpinfo */
bus_child_pnpinfo_str_t ofw_bus_gen_child_pnpinfo_str;
/* Routines for processing firmware interrupt maps */
void ofw_bus_setup_iinfo(phandle_t, struct ofw_bus_iinfo *, int);
int ofw_bus_lookup_imap(phandle_t, struct ofw_bus_iinfo *, void *, int,
void *, int, void *, int, phandle_t *);
int ofw_bus_search_intrmap(void *, int, void *, int, void *, int, void *,
void *, void *, int, phandle_t *);
/* Helper to get device status property */
const char *ofw_bus_get_status(device_t dev);
int ofw_bus_status_okay(device_t dev);
/* Helper to get node's interrupt parent */
void ofw_bus_find_iparent(phandle_t);
/* Helper routine for checking compat prop */
int ofw_bus_is_compatible(device_t, const char *);
int ofw_bus_is_compatible_strict(device_t, const char *);
/*
* Helper routine to search a list of compat properties. The table is
* terminated by an entry with a NULL compat-string pointer; a pointer to that
* table entry is returned if none of the compat strings match for the device,
* giving you control over the not-found value. Will not return NULL unless the
* provided table pointer is NULL.
*/
const struct ofw_compat_data *
ofw_bus_search_compatible(device_t, const struct ofw_compat_data *);
/* Helper routine for checking existence of a prop */
int ofw_bus_has_prop(device_t, const char *);
#endif /* !_DEV_OFW_OFW_BUS_SUBR_H_ */