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 1990, 2002 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4 5.0 */ 28 29 #include <sys/types.h> 30 #include <sys/errno.h> 31 #include <sys/conf.h> 32 #include <sys/ddi.h> 33 #include <sys/sunddi.h> 34 35 /* 36 * Configuration information 37 */ 38 39 static int options_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, 40 void **result); 41 static int options_attach(dev_info_t *devi, ddi_attach_cmd_t cmd); 42 static int options_detach(dev_info_t *devi, ddi_detach_cmd_t cmd); 43 static dev_info_t *options_devi; 44 45 struct dev_ops options_ops = { 46 47 DEVO_REV, /* devo_rev, */ 48 0, /* refcnt */ 49 options_info, /* info */ 50 nulldev, /* identify */ 51 nulldev, /* probe */ 52 options_attach, /* attach */ 53 options_detach, /* detach */ 54 nodev, /* reset */ 55 (struct cb_ops *)0, /* driver operations */ 56 (struct bus_ops *)0, /* bus operations */ 57 nulldev /* power */ 58 59 }; 60 61 /* 62 * Autoload Data and Autoload Entry 63 */ 64 65 #include <sys/modctl.h> 66 67 extern struct mod_ops mod_driverops; 68 static struct modldrv modldrv = { 69 &mod_driverops, /* Type of module. This one is a driver */ 70 "options driver", /* Name of the module. */ 71 &options_ops, /* driver ops */ 72 }; 73 74 static struct modlinkage modlinkage = { 75 MODREV_1, (void *)&modldrv 76 }; 77 78 /* 79 * This is the driver initialization routine. 80 */ 81 82 int 83 _init() 84 { 85 return (mod_install(&modlinkage)); 86 } 87 88 int 89 _fini() 90 { 91 return (EBUSY); 92 } 93 94 int 95 _info(modinfop) 96 struct modinfo *modinfop; 97 { 98 return (mod_info(&modlinkage, modinfop)); 99 } 100 101 /* ARGSUSED */ 102 static int 103 options_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) 104 { 105 register int error; 106 107 switch (infocmd) { 108 case DDI_INFO_DEVT2DEVINFO: 109 if (options_devi == NULL) { 110 error = DDI_FAILURE; 111 } else { 112 *result = (void *) options_devi; 113 error = DDI_SUCCESS; 114 } 115 break; 116 case DDI_INFO_DEVT2INSTANCE: 117 *result = (void *)0; 118 error = DDI_SUCCESS; 119 break; 120 default: 121 error = DDI_FAILURE; 122 } 123 return (error); 124 } 125 126 static int 127 options_attach(dev_info_t *devi, ddi_attach_cmd_t cmd) 128 { 129 switch (cmd) { 130 case DDI_ATTACH: 131 options_devi = devi; 132 return (DDI_SUCCESS); 133 134 case DDI_RESUME: 135 return (DDI_SUCCESS); 136 137 default: 138 return (DDI_FAILURE); 139 } 140 } 141 142 /*ARGSUSED*/ 143 static int 144 options_detach(dev_info_t *devi, ddi_detach_cmd_t cmd) 145 { 146 switch (cmd) { 147 case DDI_SUSPEND: 148 return (DDI_SUCCESS); 149 150 case DDI_DETACH: 151 default: 152 return (DDI_FAILURE); 153 } 154 } 155