freebsd-dev/sys/dev/ofw/openfirm.h
Pedro F. Giffuni 718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00

187 lines
7.4 KiB
C

/* $NetBSD: openfirm.h,v 1.1 1998/05/15 10:16:00 tsubai Exp $ */
/*-
* SPDX-License-Identifier: BSD-4-Clause
*
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
* Copyright (C) 1995, 1996 TooLs GmbH.
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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.
*/
/*
* Copyright (C) 2000 Benno Rice.
* 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 Benno Rice ``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 TOOLS GMBH 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_OPENFIRM_H_
#define _DEV_OPENFIRM_H_
#include <sys/types.h>
#include <machine/_bus.h>
/*
* Prototypes for Open Firmware Interface Routines
*/
typedef uint32_t ihandle_t;
typedef uint32_t phandle_t;
typedef uint32_t pcell_t;
#ifdef _KERNEL
#include <sys/malloc.h>
#include <machine/ofw_machdep.h>
MALLOC_DECLARE(M_OFWPROP);
/*
* Open Firmware interface initialization. OF_install installs the named
* interface as the Open Firmware access mechanism, OF_init initializes it.
*/
boolean_t OF_install(char *name, int prio);
int OF_init(void *cookie);
/*
* Known Open Firmware interface names
*/
#define OFW_STD_DIRECT "ofw_std" /* Standard OF interface */
#define OFW_STD_REAL "ofw_real" /* Real-mode OF interface */
#define OFW_STD_32BIT "ofw_32bit" /* 32-bit OF interface */
#define OFW_FDT "ofw_fdt" /* Flattened Device Tree */
/* Generic functions */
int OF_test(const char *name);
void OF_printf(const char *fmt, ...);
/* Device tree functions */
phandle_t OF_peer(phandle_t node);
phandle_t OF_child(phandle_t node);
phandle_t OF_parent(phandle_t node);
ssize_t OF_getproplen(phandle_t node, const char *propname);
ssize_t OF_getprop(phandle_t node, const char *propname, void *buf,
size_t len);
ssize_t OF_getencprop(phandle_t node, const char *prop, pcell_t *buf,
size_t len); /* Same as getprop, but maintains endianness */
int OF_hasprop(phandle_t node, const char *propname);
ssize_t OF_searchprop(phandle_t node, const char *propname, void *buf,
size_t len);
ssize_t OF_searchencprop(phandle_t node, const char *propname,
void *buf, size_t len);
ssize_t OF_getprop_alloc(phandle_t node, const char *propname,
int elsz, void **buf);
ssize_t OF_getencprop_alloc(phandle_t node, const char *propname,
int elsz, void **buf);
void OF_prop_free(void *buf);
int OF_nextprop(phandle_t node, const char *propname, char *buf,
size_t len);
int OF_setprop(phandle_t node, const char *name, const void *buf,
size_t len);
ssize_t OF_canon(const char *path, char *buf, size_t len);
phandle_t OF_finddevice(const char *path);
ssize_t OF_package_to_path(phandle_t node, char *buf, size_t len);
/*
* Some OF implementations (IBM, FDT) have a concept of effective phandles
* used for device-tree cross-references. Given one of these, returns the
* real phandle. If one can't be found (or running on OF implementations
* without this property), returns its input.
*/
phandle_t OF_node_from_xref(phandle_t xref);
phandle_t OF_xref_from_node(phandle_t node);
/*
* When properties contain references to other nodes using xref handles it is
* often necessary to use interfaces provided by the driver for the referenced
* instance. These routines allow a driver that provides such an interface to
* register its association with an xref handle, and for other drivers to obtain
* the device_t associated with an xref handle.
*/
device_t OF_device_from_xref(phandle_t xref);
phandle_t OF_xref_from_device(device_t dev);
int OF_device_register_xref(phandle_t xref, device_t dev);
/* Device I/O functions */
ihandle_t OF_open(const char *path);
void OF_close(ihandle_t instance);
ssize_t OF_read(ihandle_t instance, void *buf, size_t len);
ssize_t OF_write(ihandle_t instance, const void *buf, size_t len);
int OF_seek(ihandle_t instance, uint64_t where);
phandle_t OF_instance_to_package(ihandle_t instance);
ssize_t OF_instance_to_path(ihandle_t instance, char *buf, size_t len);
int OF_call_method(const char *method, ihandle_t instance,
int nargs, int nreturns, ...);
/* Memory functions */
void *OF_claim(void *virtrequest, size_t size, u_int align);
void OF_release(void *virt, size_t size);
/* Control transfer functions */
void OF_enter(void);
void OF_exit(void) __attribute__((noreturn));
/* User interface functions */
int OF_interpret(const char *cmd, int nreturns, ...);
/*
* Decode the Nth register property of the given device node and create a bus
* space tag and handle for accessing it. This is for use in setting up things
* like early console output before newbus is available. The implementation is
* machine-dependent, and sparc uses a different function signature as well.
*/
#ifndef __sparc64__
int OF_decode_addr(phandle_t dev, int regno, bus_space_tag_t *ptag,
bus_space_handle_t *phandle, bus_size_t *sz);
#endif
#endif /* _KERNEL */
#endif /* _DEV_OPENFIRM_H_ */