1 /* $FreeBSD$ */ 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/linker_set.h> 36 #include <sys/module.h> 37 #include <sys/lock.h> 38 #include <sys/mutex.h> 39 #include <sys/condvar.h> 40 #include <sys/sysctl.h> 41 #include <sys/sx.h> 42 #include <sys/unistd.h> 43 #include <sys/callout.h> 44 #include <sys/malloc.h> 45 #include <sys/priv.h> 46 47 #include <dev/usb/usb.h> 48 #include <dev/usb/usbdi.h> 49 50 #include <dev/usb/usb_core.h> 51 #include <dev/usb/usb_debug.h> 52 #include <dev/usb/usb_process.h> 53 #include <dev/usb/usb_device.h> 54 #include <dev/usb/usb_busdma.h> 55 #include <dev/usb/usb_transfer.h> 56 57 #include <ddb/ddb.h> 58 #include <ddb/db_sym.h> 59 60 /* 61 * Define this unconditionally in case a kernel module is loaded that 62 * has been compiled with debugging options. 63 */ 64 int usb_debug = 0; 65 66 SYSCTL_NODE(_hw, OID_AUTO, usb, CTLFLAG_RW, 0, "USB debugging"); 67 SYSCTL_INT(_hw_usb, OID_AUTO, debug, CTLFLAG_RW, 68 &usb_debug, 0, "Debug level"); 69 70 /*------------------------------------------------------------------------* 71 * usb_dump_iface 72 * 73 * This function dumps information about an USB interface. 74 *------------------------------------------------------------------------*/ 75 void 76 usb_dump_iface(struct usb_interface *iface) 77 { 78 printf("usb_dump_iface: iface=%p\n", iface); 79 if (iface == NULL) { 80 return; 81 } 82 printf(" iface=%p idesc=%p altindex=%d\n", 83 iface, iface->idesc, iface->alt_index); 84 } 85 86 /*------------------------------------------------------------------------* 87 * usb_dump_device 88 * 89 * This function dumps information about an USB device. 90 *------------------------------------------------------------------------*/ 91 void 92 usb_dump_device(struct usb_device *udev) 93 { 94 printf("usb_dump_device: dev=%p\n", udev); 95 if (udev == NULL) { 96 return; 97 } 98 printf(" bus=%p \n" 99 " address=%d config=%d depth=%d speed=%d self_powered=%d\n" 100 " power=%d langid=%d\n", 101 udev->bus, 102 udev->address, udev->curr_config_no, udev->depth, udev->speed, 103 udev->flags.self_powered, udev->power, udev->langid); 104 } 105 106 /*------------------------------------------------------------------------* 107 * usb_dump_queue 108 * 109 * This function dumps the USB transfer that are queued up on an USB endpoint. 110 *------------------------------------------------------------------------*/ 111 void 112 usb_dump_queue(struct usb_endpoint *ep) 113 { 114 struct usb_xfer *xfer; 115 116 printf("usb_dump_queue: endpoint=%p xfer: ", ep); 117 TAILQ_FOREACH(xfer, &ep->endpoint_q.head, wait_entry) { 118 printf(" %p", xfer); 119 } 120 printf("\n"); 121 } 122 123 /*------------------------------------------------------------------------* 124 * usb_dump_endpoint 125 * 126 * This function dumps information about an USB endpoint. 127 *------------------------------------------------------------------------*/ 128 void 129 usb_dump_endpoint(struct usb_endpoint *ep) 130 { 131 if (ep) { 132 printf("usb_dump_endpoint: endpoint=%p", ep); 133 134 printf(" edesc=%p isoc_next=%d toggle_next=%d", 135 ep->edesc, ep->isoc_next, ep->toggle_next); 136 137 if (ep->edesc) { 138 printf(" bEndpointAddress=0x%02x", 139 ep->edesc->bEndpointAddress); 140 } 141 printf("\n"); 142 usb_dump_queue(ep); 143 } else { 144 printf("usb_dump_endpoint: endpoint=NULL\n"); 145 } 146 } 147 148 /*------------------------------------------------------------------------* 149 * usb_dump_xfer 150 * 151 * This function dumps information about an USB transfer. 152 *------------------------------------------------------------------------*/ 153 void 154 usb_dump_xfer(struct usb_xfer *xfer) 155 { 156 struct usb_device *udev; 157 printf("usb_dump_xfer: xfer=%p\n", xfer); 158 if (xfer == NULL) { 159 return; 160 } 161 if (xfer->endpoint == NULL) { 162 printf("xfer %p: endpoint=NULL\n", 163 xfer); 164 return; 165 } 166 udev = xfer->xroot->udev; 167 printf("xfer %p: udev=%p vid=0x%04x pid=0x%04x addr=%d " 168 "endpoint=%p ep=0x%02x attr=0x%02x\n", 169 xfer, udev, 170 UGETW(udev->ddesc.idVendor), 171 UGETW(udev->ddesc.idProduct), 172 udev->address, xfer->endpoint, 173 xfer->endpoint->edesc->bEndpointAddress, 174 xfer->endpoint->edesc->bmAttributes); 175 } 176