usr/src/psm/promif/ieee1275/common/prom_handler.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 1994 by Sun Microsystems, Inc.
  24  * All Rights Reserved.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 #include <sys/promif.h>
  30 #include <sys/promimpl.h>
  31
  32 void *
  33 prom_set_callback(void *handler)
  34 {
  35         cell_t ci[5];
  36
  37         ci[0] = p1275_ptr2cell("set-callback"); /* Service name */
  38         ci[1] = (cell_t)1;                      /* #argument cells */
  39         ci[2] = (cell_t)1;                      /* #return cells */
  40         ci[3] = p1275_ptr2cell(handler);        /* Arg1: New handler */
  41         ci[4] = (cell_t)-1;                     /* Res1: Prime result */
  42
  43         promif_preprom();
  44         (void) p1275_cif_handler(&ci);
  45         promif_postprom();
  46
  47         return (p1275_cell2ptr(ci[4]));         /* Res1: Old handler */
  48 }
  49
  50 void
  51 prom_set_symbol_lookup(void *sym2val, void *val2sym)
  52 {
  53         cell_t ci[5];
  54
  55         ci[0] = p1275_ptr2cell("set-symbol-lookup");    /* Service name */
  56         ci[1] = (cell_t)2;                      /* #argument cells */
  57         ci[2] = (cell_t)0;                      /* #return cells */
  58         ci[3] = p1275_ptr2cell(sym2val);        /* Arg1: s2v handler */
  59         ci[4] = p1275_ptr2cell(val2sym);        /* Arg1: v2s handler */
  60
  61         promif_preprom();
  62         (void) p1275_cif_handler(&ci);
  63         promif_postprom();
  64 }