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 /* 28 * s1394.c 29 * 1394 Services Layer Initialization and Cleanup Routines 30 * The routines do all initialization and cleanup for the Sevices Layer 31 */ 32 33 #include <sys/conf.h> 34 #include <sys/ddi.h> 35 #include <sys/sunddi.h> 36 #include <sys/types.h> 37 #include <sys/kmem.h> 38 #include <sys/1394/t1394.h> 39 #include <sys/1394/s1394.h> 40 #include <sys/1394/h1394.h> 41 42 /* Driver State Pointer */ 43 s1394_state_t *s1394_statep; 44 45 /* Module Driver Info */ 46 static struct modlmisc s1394_modlmisc = { 47 &mod_miscops, 48 "IEEE 1394 Services Library 1.0" 49 }; 50 51 /* Module Linkage */ 52 static struct modlinkage s1394_modlinkage = { 53 MODREV_1, 54 &s1394_modlmisc, 55 NULL 56 }; 57 58 static int s1394_init(); 59 static void s1394_fini(); 60 61 int 62 _init() 63 { 64 int status; 65 66 status = s1394_init(); 67 if (status != 0) { 68 return (status); 69 } 70 71 status = mod_install(&s1394_modlinkage); 72 return (status); 73 } 74 75 int 76 _info(struct modinfo *modinfop) 77 { 78 return (mod_info(&s1394_modlinkage, modinfop)); 79 } 80 81 int 82 _fini() 83 { 84 int status; 85 86 status = mod_remove(&s1394_modlinkage); 87 if (status != 0) { 88 return (status); 89 } 90 91 s1394_fini(); 92 return (status); 93 } 94 95 /* 96 * s1394_init() 97 * initializes the 1394 Software Framework's structures, i.e. the HAL list 98 * and associated mutex. 99 */ 100 static int 101 s1394_init() 102 { 103 s1394_statep = kmem_zalloc(sizeof (s1394_state_t), KM_SLEEP); 104 105 s1394_statep->hal_head = NULL; 106 s1394_statep->hal_tail = NULL; 107 mutex_init(&s1394_statep->hal_list_mutex, NULL, MUTEX_DRIVER, NULL); 108 109 return (0); 110 } 111 112 /* 113 * s1394_fini() 114 * cleans up the 1394 Software Framework's structures that were allocated 115 * in s1394_init(). 116 */ 117 static void 118 s1394_fini() 119 { 120 mutex_destroy(&s1394_statep->hal_list_mutex); 121 122 kmem_free(s1394_statep, sizeof (s1394_state_t)); 123 } 124