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 2004 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 * skeleton hub driver, the actual code is in hubdi.c 31 * as it is shared between the root hub and the other hub instances 32 */ 33 #if defined(lint) && !defined(DEBUG) 34 #define DEBUG 1 35 #endif 36 37 #include <sys/usb/usba/usbai_version.h> 38 #include <sys/usb/usba.h> 39 #include <sys/usb/usba/hubdi.h> 40 #include <sys/usb/hubd/hub.h> 41 #include <sys/usb/hubd/hubdvar.h> 42 43 static int hubd_open(dev_t *devp, int flags, int otyp, cred_t *credp); 44 static int hubd_close(dev_t dev, int flag, int otyp, cred_t *credp); 45 static int hubd_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, 46 cred_t *credp, int *rvalp); 47 static int hubd_info(dev_info_t *dip, ddi_info_cmd_t infocmd, 48 void *arg, void **result); 49 extern int usba_hubdi_power(dev_info_t *dip, int comp, int level); 50 51 52 static struct cb_ops hubd_cb_ops = { 53 hubd_open, /* open */ 54 hubd_close, /* close */ 55 nodev, /* strategy */ 56 nodev, /* print */ 57 nodev, /* dump */ 58 nodev, /* read */ 59 nodev, /* write */ 60 hubd_ioctl, /* ioctl */ 61 nodev, /* devmap */ 62 nodev, /* mmap */ 63 nodev, /* segmap */ 64 nochpoll, /* poll */ 65 ddi_prop_op, /* cb_prop_op */ 66 NULL, /* streamtab */ 67 D_MP /* Driver compatibility flag */ 68 }; 69 70 static struct dev_ops hubd_ops = { 71 DEVO_REV, /* devo_rev, */ 72 0, /* refcnt */ 73 hubd_info, /* info */ 74 nulldev, /* identify */ 75 nulldev, /* probe */ 76 usba_hubdi_attach, /* attach */ 77 usba_hubdi_detach, /* detach */ 78 nodev, /* reset */ 79 &hubd_cb_ops, /* driver operations */ 80 &usba_hubdi_busops, /* bus operations */ 81 usba_hubdi_power /* power */ 82 }; 83 84 static struct modldrv modldrv = { 85 &mod_driverops, /* Type of module. This one is a driver */ 86 "USB Hub Driver %I%", /* Name of the module. */ 87 &hubd_ops, /* driver ops */ 88 }; 89 90 static struct modlinkage modlinkage = { 91 MODREV_1, (void *)&modldrv, NULL 92 }; 93 94 95 extern void *hubd_statep; 96 97 int 98 _init(void) 99 { 100 int rval; 101 102 /* Initialize the soft state structures */ 103 if ((rval = ddi_soft_state_init(&hubd_statep, 104 sizeof (hubd_t), HUBD_INITIAL_SOFT_SPACE)) != 0) { 105 return (rval); 106 } 107 108 if ((rval = mod_install(&modlinkage)) != 0) { 109 ddi_soft_state_fini(&hubd_statep); 110 111 return (rval); 112 } 113 114 return (rval); 115 } 116 117 118 int 119 _fini(void) 120 { 121 int rval = mod_remove(&modlinkage); 122 if (rval == 0) { 123 ddi_soft_state_fini(&hubd_statep); 124 } 125 126 return (rval); 127 } 128 129 130 int 131 _info(struct modinfo *modinfop) 132 { 133 return (mod_info(&modlinkage, modinfop)); 134 } 135 136 137 static dev_info_t * 138 hubd_get_dip(dev_t dev) 139 { 140 minor_t minor = getminor(dev); 141 int instance = (int)minor & ~HUBD_IS_ROOT_HUB; 142 hubd_t *hubd = ddi_get_soft_state(hubd_statep, instance); 143 144 if (hubd) { 145 return (hubd->h_dip); 146 } else { 147 return (NULL); 148 } 149 } 150 151 /* 152 * info handler 153 */ 154 /*ARGSUSED*/ 155 int 156 hubd_info(dev_info_t *dip, ddi_info_cmd_t infocmd, 157 void *arg, void **result) 158 { 159 dev_t dev; 160 int instance; 161 int error = DDI_FAILURE; 162 163 switch (infocmd) { 164 case DDI_INFO_DEVT2DEVINFO: 165 *result = (void *)hubd_get_dip((dev_t)arg); 166 if (*result != NULL) { 167 error = DDI_SUCCESS; 168 } 169 break; 170 case DDI_INFO_DEVT2INSTANCE: 171 dev = (dev_t)arg; 172 instance = HUBD_UNIT(dev); 173 *result = (void *)(intptr_t)instance; 174 error = DDI_SUCCESS; 175 break; 176 default: 177 break; 178 } 179 return (error); 180 } 181 182 static int 183 hubd_open(dev_t *devp, int flags, int otyp, cred_t *credp) 184 { 185 dev_info_t *dip = hubd_get_dip(*devp); 186 187 return (usba_hubdi_open(dip, devp, flags, otyp, credp)); 188 } 189 190 191 static int 192 hubd_close(dev_t dev, int flag, int otyp, cred_t *credp) 193 { 194 dev_info_t *dip = hubd_get_dip(dev); 195 196 return (usba_hubdi_close(dip, dev, flag, otyp, credp)); 197 } 198 199 200 static int 201 hubd_ioctl(dev_t dev, int cmd, intptr_t arg, int mode, 202 cred_t *credp, int *rvalp) 203 { 204 dev_info_t *dip = hubd_get_dip(dev); 205 206 return (usba_hubdi_ioctl(dip, dev, cmd, arg, mode, 207 credp, rvalp)); 208 } 209