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 /* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* 30 * "PROM" interface 31 */ 32 33 #include <sys/types.h> 34 #include <sys/promif.h> 35 36 #include <kmdb/kmdb_promif_impl.h> 37 #include <kmdb/kmdb_kdi.h> 38 #include <kmdb/kmdb_dpi.h> 39 #include <mdb/mdb_err.h> 40 #include <mdb/mdb_debug.h> 41 #include <mdb/mdb_string.h> 42 #include <mdb/mdb.h> 43 44 struct boot_syscalls *kmdb_sysp; 45 46 ssize_t 47 kmdb_prom_obp_writer(caddr_t buf, size_t len) 48 { 49 int i; 50 51 for (i = 0; i < len; i++) 52 prom_putchar(*buf++); 53 54 return (len); 55 } 56 57 /*ARGSUSED*/ 58 ihandle_t 59 kmdb_prom_get_handle(char *name) 60 { 61 /* no handles here */ 62 return (0); 63 } 64 65 char * 66 kmdb_prom_get_ddi_prop(kmdb_auxv_t *kav, char *propname) 67 { 68 int i; 69 70 if (kav->kav_pcache != NULL) { 71 for (i = 0; i < kav->kav_nprops; i++) { 72 kmdb_auxv_nv_t *nv = &kav->kav_pcache[i]; 73 if (strcmp(nv->kanv_name, propname) == 0) 74 return (nv->kanv_val); 75 } 76 } 77 78 return (NULL); 79 } 80 81 /*ARGSUSED*/ 82 void 83 kmdb_prom_free_ddi_prop(char *val) 84 { 85 } 86 87 int 88 kmdb_prom_stdout_is_framebuffer(kmdb_auxv_t *kav) 89 { 90 char *dev; 91 92 /* 93 * We can't use the official promif version, as we need to ensure that 94 * property lookups come from our property cache. 95 */ 96 97 if ((dev = kmdb_prom_get_ddi_prop(kav, "output-device")) == NULL) 98 return (0); 99 100 return (strcmp(dev, "screen") == 0); 101 } 102