usr/src/psm/promif/ieee1275/common/prom_test.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 (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #pragma ident   "%Z%%M% %I%     %E% SMI"
  27
  28 #include <sys/promif.h>
  29 #include <sys/promimpl.h>
  30
  31 /*
  32  * Test for existance of a specific P1275 client interface service
  33  */
  34 int
  35 prom_test(char *service)
  36 {
  37         cell_t ci[5];
  38
  39         ci[0] = p1275_ptr2cell("test");         /* Service name */
  40         ci[1] = (cell_t)1;                      /* #argument cells */
  41         ci[2] = (cell_t)1;                      /* #result cells */
  42         ci[3] = p1275_ptr2cell(service);        /* Arg1: requested svc name */
  43         ci[4] = (cell_t)-1;                     /* Res1: Prime result */
  44
  45         promif_preprom();
  46         (void) p1275_cif_handler(&ci);
  47         promif_postprom();
  48
  49         return (p1275_cell2int(ci[4]));         /* Res1: missing flag */
  50 }
  51
  52 int
  53 prom_test_method(char *method, pnode_t node)
  54 {
  55         cell_t ci[6];
  56         int rv;
  57         char buf[80];
  58
  59         if (prom_test("test-method") == 0) {
  60                 ci[0] = p1275_ptr2cell("test-method");  /* service */
  61                 ci[1] = (cell_t)2;                      /* #argument cells */
  62                 ci[2] = (cell_t)1;                      /* #result cells */
  63                 ci[3] = p1275_dnode2cell(node);
  64                 ci[4] = p1275_ptr2cell(method);
  65                 ci[5] = (cell_t)-1;
  66
  67                 promif_preprom();
  68                 (void) p1275_cif_handler(&ci);
  69                 promif_postprom();
  70                 rv = p1275_cell2int(ci[5]);
  71         } else {
  72                 (void) prom_sprintf(buf,
  73                     "\" %s\" h# %x find-method invert h# %p l!",
  74                     method, node, (void *)&rv);
  75                 prom_interpret(buf, 0, 0, 0, 0, 0);
  76         }
  77         return (rv);
  78 }