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 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
24 */
25
26
27 /*
28 * skeleton hub driver, the actual code is in hubdi.c
29 * as it is shared between the root hub and the other hub instances
30 */
31 #if defined(lint) && !defined(DEBUG)
32 #define DEBUG 1
33 #endif
34
35 #include <sys/usb/usba/usbai_version.h>
36 #include <sys/usb/usba.h>
37 #include <sys/usb/usba/hubdi.h>
38 #include <sys/usb/hubd/hub.h>
39 #include <sys/usb/hubd/hubdvar.h>
40
41 static int hubd_open(dev_t *devp, int flags, int otyp, cred_t *credp);
42 static int hubd_close(dev_t dev, int flag, int otyp, cred_t *credp);
43 static int hubd_ioctl(dev_t dev, int cmd, intptr_t arg, int mode,
44 cred_t *credp, int *rvalp);
45 static int hubd_info(dev_info_t *dip, ddi_info_cmd_t infocmd,
46 void *arg, void **result);
47 extern int usba_hubdi_power(dev_info_t *dip, int comp, int level);
48
49
50 static struct cb_ops hubd_cb_ops = {
51 hubd_open, /* open */
52 hubd_close, /* close */
53 nodev, /* strategy */
54 nodev, /* print */
55 nodev, /* dump */
56 nodev, /* read */
57 nodev, /* write */
58 hubd_ioctl, /* ioctl */
59 nodev, /* devmap */
60 nodev, /* mmap */
61 nodev, /* segmap */
62 nochpoll, /* poll */
63 ddi_prop_op, /* cb_prop_op */
64 NULL, /* streamtab */
65 D_MP /* Driver compatibility flag */
66 };
67
68 static struct dev_ops hubd_ops = {
69 DEVO_REV, /* devo_rev, */
70 0, /* refcnt */
71 hubd_info, /* info */
72 nulldev, /* identify */
73 nulldev, /* probe */
74 usba_hubdi_attach, /* attach */
75 usba_hubdi_detach, /* detach */
76 nodev, /* reset */
77 &hubd_cb_ops, /* driver operations */
78 &usba_hubdi_busops, /* bus operations */
79 usba_hubdi_power, /* power */
80 ddi_quiesce_not_needed, /* quiesce */
81 };
82
83 static struct modldrv modldrv = {
84 &mod_driverops, /* Type of module. This one is a driver */
85 "USB Hub Driver", /* Name of the module. */
86 &hubd_ops, /* driver ops */
87 };
88
89 static struct modlinkage modlinkage = {
90 MODREV_1, { (void *)&modldrv, NULL }
91 };
92
93
94 extern void *hubd_statep;
95
96 int
97 _init(void)
98 {
99 int rval;
100
101 /* Initialize the soft state structures */
102 if ((rval = ddi_soft_state_init(&hubd_statep,
103 sizeof (hubd_t), HUBD_INITIAL_SOFT_SPACE)) != 0) {
104 return (rval);
105 }
106
107 if ((rval = mod_install(&modlinkage)) != 0) {
108 ddi_soft_state_fini(&hubd_statep);
109
110 return (rval);
111 }
112
113 return (rval);
114 }
115
116
117 int
118 _fini(void)
119 {
120 int rval = mod_remove(&modlinkage);
121 if (rval == 0) {
122 ddi_soft_state_fini(&hubd_statep);
123 }
124
125 return (rval);
126 }
127
128
129 int
130 _info(struct modinfo *modinfop)
131 {
132 return (mod_info(&modlinkage, modinfop));
133 }
134
135
136 static dev_info_t *
137 hubd_get_dip(dev_t dev)
138 {
139 minor_t minor = getminor(dev);
140 int instance = (int)minor & ~HUBD_IS_ROOT_HUB;
141 hubd_t *hubd = ddi_get_soft_state(hubd_statep, instance);
142
143 if (hubd) {
144 return (hubd->h_dip);
145 } else {
146 return (NULL);
147 }
148 }
149
150 /*
151 * info handler
152 */
153 /*ARGSUSED*/
154 int
155 hubd_info(dev_info_t *dip, ddi_info_cmd_t infocmd,
156 void *arg, void **result)
157 {
158 dev_t dev;
159 int instance;
160 int error = DDI_FAILURE;
161
162 switch (infocmd) {
163 case DDI_INFO_DEVT2DEVINFO:
164 *result = (void *)hubd_get_dip((dev_t)arg);
165 if (*result != NULL) {
166 error = DDI_SUCCESS;
167 }
168 break;
169 case DDI_INFO_DEVT2INSTANCE:
170 dev = (dev_t)arg;
171 instance = HUBD_UNIT(dev);
172 *result = (void *)(intptr_t)instance;
173 error = DDI_SUCCESS;
174 break;
175 default:
176 break;
177 }
178 return (error);
179 }
180
181 static int
182 hubd_open(dev_t *devp, int flags, int otyp, cred_t *credp)
183 {
184 dev_info_t *dip = hubd_get_dip(*devp);
185
186 return (usba_hubdi_open(dip, devp, flags, otyp, credp));
187 }
188
189
190 static int
191 hubd_close(dev_t dev, int flag, int otyp, cred_t *credp)
192 {
193 dev_info_t *dip = hubd_get_dip(dev);
194
195 return (usba_hubdi_close(dip, dev, flag, otyp, credp));
196 }
197
198
199 static int
200 hubd_ioctl(dev_t dev, int cmd, intptr_t arg, int mode,
201 cred_t *credp, int *rvalp)
202 {
203 dev_info_t *dip = hubd_get_dip(dev);
204
205 return (usba_hubdi_ioctl(dip, dev, cmd, arg, mode,
206 credp, rvalp));
207 }