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) 1999-2000 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* 30 * s1394.c 31 * 1394 Services Layer Initialization and Cleanup Routines 32 * The routines do all initialization and cleanup for the Sevices Layer 33 */ 34 35 #include <sys/conf.h> 36 #include <sys/ddi.h> 37 #include <sys/sunddi.h> 38 #include <sys/types.h> 39 #include <sys/kmem.h> 40 #include <sys/tnf_probe.h> 41 42 #include <sys/1394/t1394.h> 43 #include <sys/1394/s1394.h> 44 #include <sys/1394/h1394.h> 45 46 /* Driver State Pointer */ 47 s1394_state_t *s1394_statep; 48 49 /* Module Driver Info */ 50 static struct modlmisc s1394_modlmisc = { 51 &mod_miscops, 52 "IEEE 1394 Services Library 1.0" 53 }; 54 55 /* Module Linkage */ 56 static struct modlinkage s1394_modlinkage = { 57 MODREV_1, 58 &s1394_modlmisc, 59 NULL 60 }; 61 62 static int s1394_init(); 63 static void s1394_fini(); 64 65 #ifndef NPROBE 66 extern int tnf_mod_load(void); 67 extern int tnf_mod_unload(struct modlinkage *mlp); 68 #endif 69 70 int 71 _init() 72 { 73 int status; 74 75 #ifndef NPROBE 76 (void) tnf_mod_load(); 77 #endif 78 status = s1394_init(); 79 if (status != 0) { 80 TNF_PROBE_1(_init_error, S1394_TNF_SL_ERROR, "", 81 tnf_string, msg, "s1394: failed in s1394_init"); 82 #ifndef NPROBE 83 (void) tnf_mod_unload(&s1394_modlinkage); 84 #endif 85 return (status); 86 } 87 88 status = mod_install(&s1394_modlinkage); 89 if (status != 0) { 90 TNF_PROBE_1(_init_error, S1394_TNF_SL_ERROR, "", 91 tnf_string, msg, "s1394: failed in mod_install"); 92 #ifndef NPROBE 93 (void) tnf_mod_unload(&s1394_modlinkage); 94 #endif 95 } 96 return (status); 97 } 98 99 int 100 _info(struct modinfo *modinfop) 101 { 102 return (mod_info(&s1394_modlinkage, modinfop)); 103 } 104 105 int 106 _fini() 107 { 108 int status; 109 110 status = mod_remove(&s1394_modlinkage); 111 if (status != 0) { 112 TNF_PROBE_1(_fini_error, S1394_TNF_SL_ERROR, "", 113 tnf_string, msg, "s1394: failed in mod_remove"); 114 return (status); 115 } 116 117 s1394_fini(); 118 #ifndef NPROBE 119 (void) tnf_mod_unload(&s1394_modlinkage); 120 #endif 121 return (status); 122 } 123 124 /* 125 * s1394_init() 126 * initializes the 1394 Software Framework's structures, i.e. the HAL list 127 * and associated mutex. 128 */ 129 static int 130 s1394_init() 131 { 132 TNF_PROBE_0_DEBUG(s1394_init_enter, S1394_TNF_SL_STACK, ""); 133 134 s1394_statep = kmem_zalloc(sizeof (s1394_state_t), KM_SLEEP); 135 136 s1394_statep->hal_head = NULL; 137 s1394_statep->hal_tail = NULL; 138 mutex_init(&s1394_statep->hal_list_mutex, NULL, MUTEX_DRIVER, NULL); 139 140 TNF_PROBE_0_DEBUG(s1394_init_exit, S1394_TNF_SL_STACK, ""); 141 return (0); 142 } 143 144 /* 145 * s1394_fini() 146 * cleans up the 1394 Software Framework's structures that were allocated 147 * in s1394_init(). 148 */ 149 static void 150 s1394_fini() 151 { 152 TNF_PROBE_0_DEBUG(s1394_fini_enter, S1394_TNF_SL_STACK, ""); 153 154 mutex_destroy(&s1394_statep->hal_list_mutex); 155 156 kmem_free(s1394_statep, sizeof (s1394_state_t)); 157 158 TNF_PROBE_0_DEBUG(s1394_fini_exit, S1394_TNF_SL_STACK, ""); 159 } 160