| 1 | /* |
| 2 | * ========== Copyright Header Begin ========================================== |
| 3 | * |
| 4 | * Hypervisor Software File: prom_2path.c |
| 5 | * |
| 6 | * Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. |
| 7 | * |
| 8 | * - Do no alter or remove copyright notices |
| 9 | * |
| 10 | * - Redistribution and use of this software in source and binary forms, with |
| 11 | * or without modification, are permitted provided that the following |
| 12 | * conditions are met: |
| 13 | * |
| 14 | * - Redistribution of source code must retain the above copyright notice, |
| 15 | * this list of conditions and the following disclaimer. |
| 16 | * |
| 17 | * - Redistribution in binary form must reproduce the above copyright notice, |
| 18 | * this list of conditions and the following disclaimer in the |
| 19 | * documentation and/or other materials provided with the distribution. |
| 20 | * |
| 21 | * Neither the name of Sun Microsystems, Inc. or the names of contributors |
| 22 | * may be used to endorse or promote products derived from this software |
| 23 | * without specific prior written permission. |
| 24 | * |
| 25 | * This software is provided "AS IS," without a warranty of any kind. |
| 26 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, |
| 27 | * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A |
| 28 | * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN |
| 29 | * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR |
| 30 | * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR |
| 31 | * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN |
| 32 | * OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR |
| 33 | * FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE |
| 34 | * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, |
| 35 | * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF |
| 36 | * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. |
| 37 | * |
| 38 | * You acknowledge that this software is not designed, licensed or |
| 39 | * intended for use in the design, construction, operation or maintenance of |
| 40 | * any nuclear facility. |
| 41 | * |
| 42 | * ========== Copyright Header End ============================================ |
| 43 | */ |
| 44 | /* |
| 45 | * Copyright (c) 2000-2003 Sun Microsystems, Inc. |
| 46 | * All rights reserved. |
| 47 | * Use is subject to license terms. |
| 48 | */ |
| 49 | |
| 50 | #pragma ident "@(#)prom_2path.c 1.1 00/07/22 SMI" |
| 51 | |
| 52 | #include <sys/promif.h> |
| 53 | #include <sys/promimpl.h> |
| 54 | |
| 55 | static int32_t handle2path(char *svc, uint32_t handle, char *buf, uint32_t len); |
| 56 | |
| 57 | int |
| 58 | prom_ihandle_to_path(ihandle_t instance, char *buf, uint32_t len) |
| 59 | { |
| 60 | return (handle2path("instance-to-path", (uint32_t)instance, buf, len)); |
| 61 | } |
| 62 | |
| 63 | int |
| 64 | prom_phandle_to_path(phandle_t package, char *buf, uint32_t len) |
| 65 | { |
| 66 | return (handle2path("package-to-path", (uint32_t)package, buf, len)); |
| 67 | } |
| 68 | |
| 69 | static int |
| 70 | handle2path(char *service, uint32_t handle, char *buf, uint32_t len) |
| 71 | { |
| 72 | cell_t ci[7]; |
| 73 | int32_t rv; |
| 74 | |
| 75 | ci[0] = p1275_ptr2cell(service); /* Service name */ |
| 76 | ci[1] = 3; /* #argument cells */ |
| 77 | ci[2] = 1; /* #return cells */ |
| 78 | ci[3] = p1275_uint2cell(handle); /* Arg1: ihandle/phandle */ |
| 79 | ci[4] = p1275_ptr2cell(buf); /* Arg2: Result buffer */ |
| 80 | ci[5] = p1275_uint2cell(len); /* Arg3: Buffer len */ |
| 81 | rv = p1275_cif_handler(&ci); |
| 82 | |
| 83 | if (rv != 0) |
| 84 | return (-1); |
| 85 | return (p1275_cell2int(ci[6])); /* Res1: Actual length */ |
| 86 | } |