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 /* 28 * "PROM" interface 29 */ 30 31 #include <sys/types.h> 32 #include <sys/promif.h> 33 34 #include <kmdb/kmdb_promif_impl.h> 35 #include <kmdb/kmdb_kdi.h> 36 #include <kmdb/kmdb_dpi.h> 37 #include <mdb/mdb_err.h> 38 #include <mdb/mdb_debug.h> 39 #include <mdb/mdb_string.h> 40 #include <mdb/mdb.h> 41 42 struct boot_syscalls *kmdb_sysp; 43 44 ssize_t 45 kmdb_prom_obp_writer(caddr_t buf, size_t len) 46 { 47 int i; 48 49 for (i = 0; i < len; i++) 50 prom_putchar(*buf++); 51 52 return (len); 53 } 54 55 /*ARGSUSED*/ 56 ihandle_t 57 kmdb_prom_get_handle(char *name) 58 { 59 /* no handles here */ 60 return (0); 61 } 62 63 char * 64 kmdb_prom_get_ddi_prop(kmdb_auxv_t *kav, char *propname) 65 { 66 int i; 67 68 if (kav->kav_pcache != NULL) { 69 for (i = 0; i < kav->kav_nprops; i++) { 70 kmdb_auxv_nv_t *nv = &kav->kav_pcache[i]; 71 if (strcmp(nv->kanv_name, propname) == 0) 72 return (nv->kanv_val); 73 } 74 } 75 76 return (NULL); 77 } 78 79 /*ARGSUSED*/ 80 void 81 kmdb_prom_free_ddi_prop(char *val) 82 { 83 } 84 85 /* 86 * This function is actually about checking if we are using 87 * local console versus serial console. Serial console can be named 88 * "ttyX" where X is [a-d], or "usb-serial". 89 */ 90 int 91 kmdb_prom_stdout_is_framebuffer(kmdb_auxv_t *kav) 92 { 93 char *dev; 94 95 /* 96 * The property "output-device" value is set in property cache, and 97 * is based on either "output-device" or "console" properties from 98 * the actual system. We can't use the official promif version, as we 99 * need to ensure that property lookups come from our property cache. 100 */ 101 102 if ((dev = kmdb_prom_get_ddi_prop(kav, "output-device")) == NULL) 103 return (0); 104 105 if (strncmp(dev, "tty", 3) == 0) 106 return (0); 107 if (strcmp(dev, "usb-serial") == 0) 108 return (0); 109 110 /* Anything else is classified as local console. */ 111 return (1); 112 } 113