117879090SNathan Whitehorn /*- 2*4d846d26SWarner Losh * SPDX-License-Identifier: BSD-2-Clause 371e3c308SPedro F. Giffuni * 417879090SNathan Whitehorn * Copyright (c) 2011 Nathan Whitehorn 517879090SNathan Whitehorn * All rights reserved. 617879090SNathan Whitehorn * 717879090SNathan Whitehorn * Redistribution and use in source and binary forms, with or without 817879090SNathan Whitehorn * modification, are permitted provided that the following conditions 917879090SNathan Whitehorn * are met: 1017879090SNathan Whitehorn * 1. Redistributions of source code must retain the above copyright 1117879090SNathan Whitehorn * notice, this list of conditions and the following disclaimer. 1217879090SNathan Whitehorn * 2. Redistributions in binary form must reproduce the above copyright 1317879090SNathan Whitehorn * notice, this list of conditions and the following disclaimer in the 1417879090SNathan Whitehorn * documentation and/or other materials provided with the distribution. 1517879090SNathan Whitehorn * 1617879090SNathan Whitehorn * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1717879090SNathan Whitehorn * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1817879090SNathan Whitehorn * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1917879090SNathan Whitehorn * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2017879090SNathan Whitehorn * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2117879090SNathan Whitehorn * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2217879090SNathan Whitehorn * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2317879090SNathan Whitehorn * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2417879090SNathan Whitehorn * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2517879090SNathan Whitehorn * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2617879090SNathan Whitehorn * SUCH DAMAGE. 2717879090SNathan Whitehorn */ 2817879090SNathan Whitehorn 2917879090SNathan Whitehorn #ifndef _MACHINE_RTAS_H_ 3017879090SNathan Whitehorn #define _MACHINE_RTAS_H_ 3117879090SNathan Whitehorn 3217879090SNathan Whitehorn #include <sys/types.h> 3317879090SNathan Whitehorn #include <dev/ofw/openfirm.h> 3417879090SNathan Whitehorn 3517879090SNathan Whitehorn /* 3617879090SNathan Whitehorn * RTAS functions are defined by 32-bit integer tokens. These vary from 3717879090SNathan Whitehorn * system to system, and can be looked up from their standardized names 3817879090SNathan Whitehorn * using rtas_token_lookup(). If RTAS is not available, rtas_token_lookup() 3917879090SNathan Whitehorn * and rtas_call_method() return -1; this can be checked in advance using 4017879090SNathan Whitehorn * rtas_exists(). Otherwise, rtas_call_method() returns one of the RTAS 4117879090SNathan Whitehorn * status codes from the bottom of this file. 4217879090SNathan Whitehorn */ 4317879090SNathan Whitehorn 4417879090SNathan Whitehorn int rtas_exists(void); 4517879090SNathan Whitehorn int rtas_call_method(cell_t token, int nargs, int nreturns, ...); 4617879090SNathan Whitehorn cell_t rtas_token_lookup(const char *method); 4717879090SNathan Whitehorn 4817879090SNathan Whitehorn /* RTAS Status Codes: see CHRP or PAPR specification */ 4917879090SNathan Whitehorn #define RTAS_OK 0 5017879090SNathan Whitehorn #define RTAS_HW_ERROR -1 5117879090SNathan Whitehorn #define RTAS_BUSY -2 5217879090SNathan Whitehorn #define RTAS_PARAM_ERROR -3 5317879090SNathan Whitehorn #define RTAS_STATE_CHANGE -7 5417879090SNathan Whitehorn #define RTAS_VENDOR_BEGIN 9000 5517879090SNathan Whitehorn #define RTAS_EXTENDED_DELAY 9900 5617879090SNathan Whitehorn #define RTAS_ISOLATION_ERROR -9000 5717879090SNathan Whitehorn #define RTAS_VENDOR_ERROR_BEGIN -9004 5817879090SNathan Whitehorn 5917879090SNathan Whitehorn #endif /* _MACHINE_RTAS_H_ */ 60