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/*
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 * Copyright (C) 2005 Martin Decky
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#ifndef __OFW_H__
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#define __OFW_H__
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#define NULL    0
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#define MAX_OFW_ARGS    10
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typedef __builtin_va_list va_list;
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#define va_start(ap, last)      __builtin_va_start(ap, last)
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#define va_arg(ap, type)        __builtin_va_arg(ap, type)
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#define va_end(ap)          __builtin_va_end(ap)
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typedef unsigned int ofw_arg_t;
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typedef unsigned int ihandle;
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typedef unsigned int phandle;
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/** OpenFirmware command structure
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 *
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 */
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typedef struct {
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    const char *service;          /**< Command name */
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    unsigned int nargs;           /**< Number of in arguments */
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    unsigned int nret;            /**< Number of out arguments */
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    ofw_arg_t args[MAX_OFW_ARGS]; /**< List of arguments */
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} ofw_args_t;
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typedef void (*ofw_entry)(ofw_args_t *);
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extern void init(void);
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void halt(void);
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extern phandle ofw_find_device(const char *name);
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extern int ofw_get_property(const phandle device, const char *name, const void *buf, const int buflen);
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extern int ofw_call(const char *service, const int nargs, const int nret, ...);
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#define ofw_call_method(instance, method, nargs, nret, ...) ofw_call("call-method", (nargs + 2), nret, method, instance, ##__VA_ARGS__)
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extern ihandle ofw_open(const char *name);
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extern void ofw_write(const char *str, const int len);
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extern void *ofw_claim(const void *addr, const int size, const int align);
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extern void *ofw_translate(const void *virt);
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#endif