63 lines
2.4 KiB
C
63 lines
2.4 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2011 Nathan Whitehorn
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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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* 1. 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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* 2. 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_RTAS_H_
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#define _MACHINE_RTAS_H_
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#include <dev/ofw/openfirm.h>
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/*
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* RTAS functions are defined by 32-bit integer tokens. These vary from
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* system to system, and can be looked up from their standardized names
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* using rtas_token_lookup(). If RTAS is not available, rtas_token_lookup()
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* and rtas_call_method() return -1; this can be checked in advance using
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* rtas_exists(). Otherwise, rtas_call_method() returns one of the RTAS
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* status codes from the bottom of this file.
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*/
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int rtas_exists(void);
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int rtas_call_method(cell_t token, int nargs, int nreturns, ...);
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cell_t rtas_token_lookup(const char *method);
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/* RTAS Status Codes: see CHRP or PAPR specification */
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#define RTAS_OK 0
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#define RTAS_HW_ERROR -1
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#define RTAS_BUSY -2
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#define RTAS_PARAM_ERROR -3
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#define RTAS_STATE_CHANGE -7
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#define RTAS_VENDOR_BEGIN 9000
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#define RTAS_EXTENDED_DELAY 9900
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#define RTAS_ISOLATION_ERROR -9000
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#define RTAS_VENDOR_ERROR_BEGIN -9004
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#endif /* _MACHINE_RTAS_H_ */
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