1 /* $FreeBSD: releng/8.3/sys/dev/usb/usb_debug.c 221125 2011-04-27 18:00:46Z jhb $ */
2 /*-
3 * Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include <sys/stdint.h>
28 #include <sys/stddef.h>
29 #include <sys/param.h>
30 #include <sys/queue.h>
31 #include <sys/types.h>
32 #include <sys/systm.h>
33 #include <sys/kernel.h>
34 #include <sys/bus.h>
35 #include <sys/module.h>
36 #include <sys/lock.h>
37 #include <sys/mutex.h>
38 #include <sys/condvar.h>
39 #include <sys/sysctl.h>
40 #include <sys/sx.h>
41 #include <sys/unistd.h>
42 #include <sys/callout.h>
43 #include <sys/malloc.h>
44 #include <sys/priv.h>
45
46 #include <dev/usb/usb.h>
47 #include <dev/usb/usbdi.h>
48
49 #include <dev/usb/usb_core.h>
50 #include <dev/usb/usb_debug.h>
51 #include <dev/usb/usb_process.h>
52 #include <dev/usb/usb_device.h>
53 #include <dev/usb/usb_busdma.h>
54 #include <dev/usb/usb_transfer.h>
55
56 #include <ddb/ddb.h>
57 #include <ddb/db_sym.h>
58
59 /*
60 * Define this unconditionally in case a kernel module is loaded that
61 * has been compiled with debugging options.
62 */
63 int usb_debug = 0;
64
65 SYSCTL_NODE(_hw, OID_AUTO, usb, CTLFLAG_RW, 0, "USB debugging");
66 SYSCTL_INT(_hw_usb, OID_AUTO, debug, CTLFLAG_RW,
67 &usb_debug, 0, "Debug level");
68
69 TUNABLE_INT("hw.usb.debug", &usb_debug);
70
71 /*------------------------------------------------------------------------*
72 * usb_dump_iface
73 *
74 * This function dumps information about an USB interface.
75 *------------------------------------------------------------------------*/
76 void
77 usb_dump_iface(struct usb_interface *iface)
78 {
79 printf("usb_dump_iface: iface=%p\n", iface);
80 if (iface == NULL) {
81 return;
82 }
83 printf(" iface=%p idesc=%p altindex=%d\n",
84 iface, iface->idesc, iface->alt_index);
85 }
86
87 /*------------------------------------------------------------------------*
88 * usb_dump_device
89 *
90 * This function dumps information about an USB device.
91 *------------------------------------------------------------------------*/
92 void
93 usb_dump_device(struct usb_device *udev)
94 {
95 printf("usb_dump_device: dev=%p\n", udev);
96 if (udev == NULL) {
97 return;
98 }
99 printf(" bus=%p \n"
100 " address=%d config=%d depth=%d speed=%d self_powered=%d\n"
101 " power=%d langid=%d\n",
102 udev->bus,
103 udev->address, udev->curr_config_no, udev->depth, udev->speed,
104 udev->flags.self_powered, udev->power, udev->langid);
105 }
106
107 /*------------------------------------------------------------------------*
108 * usb_dump_queue
109 *
110 * This function dumps the USB transfer that are queued up on an USB endpoint.
111 *------------------------------------------------------------------------*/
112 void
113 usb_dump_queue(struct usb_endpoint *ep)
114 {
115 struct usb_xfer *xfer;
116
117 printf("usb_dump_queue: endpoint=%p xfer: ", ep);
118 TAILQ_FOREACH(xfer, &ep->endpoint_q.head, wait_entry) {
119 printf(" %p", xfer);
120 }
121 printf("\n");
122 }
123
124 /*------------------------------------------------------------------------*
125 * usb_dump_endpoint
126 *
127 * This function dumps information about an USB endpoint.
128 *------------------------------------------------------------------------*/
129 void
130 usb_dump_endpoint(struct usb_endpoint *ep)
131 {
132 if (ep) {
133 printf("usb_dump_endpoint: endpoint=%p", ep);
134
135 printf(" edesc=%p isoc_next=%d toggle_next=%d",
136 ep->edesc, ep->isoc_next, ep->toggle_next);
137
138 if (ep->edesc) {
139 printf(" bEndpointAddress=0x%02x",
140 ep->edesc->bEndpointAddress);
141 }
142 printf("\n");
143 usb_dump_queue(ep);
144 } else {
145 printf("usb_dump_endpoint: endpoint=NULL\n");
146 }
147 }
148
149 /*------------------------------------------------------------------------*
150 * usb_dump_xfer
151 *
152 * This function dumps information about an USB transfer.
153 *------------------------------------------------------------------------*/
154 void
155 usb_dump_xfer(struct usb_xfer *xfer)
156 {
157 struct usb_device *udev;
158 printf("usb_dump_xfer: xfer=%p\n", xfer);
159 if (xfer == NULL) {
160 return;
161 }
162 if (xfer->endpoint == NULL) {
163 printf("xfer %p: endpoint=NULL\n",
164 xfer);
165 return;
166 }
167 udev = xfer->xroot->udev;
168 printf("xfer %p: udev=%p vid=0x%04x pid=0x%04x addr=%d "
169 "endpoint=%p ep=0x%02x attr=0x%02x\n",
170 xfer, udev,
171 UGETW(udev->ddesc.idVendor),
172 UGETW(udev->ddesc.idProduct),
173 udev->address, xfer->endpoint,
174 xfer->endpoint->edesc->bEndpointAddress,
175 xfer->endpoint->edesc->bmAttributes);
176 }
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