usb_debug.c revision 194677
1248613Sdes/* $FreeBSD: head/sys/dev/usb/usb_debug.c 194677 2009-06-23 02:19:59Z thompsa $ */ 2248613Sdes/*- 3248613Sdes * Copyright (c) 2008 Hans Petter Selasky. All rights reserved. 4248613Sdes * 5248613Sdes * Redistribution and use in source and binary forms, with or without 6248613Sdes * modification, are permitted provided that the following conditions 7248613Sdes * are met: 8248613Sdes * 1. Redistributions of source code must retain the above copyright 9248613Sdes * notice, this list of conditions and the following disclaimer. 10248613Sdes * 2. Redistributions in binary form must reproduce the above copyright 11248613Sdes * notice, this list of conditions and the following disclaimer in the 12248613Sdes * documentation and/or other materials provided with the distribution. 13248613Sdes * 14248613Sdes * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15248613Sdes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16248613Sdes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17248613Sdes * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18248613Sdes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19248613Sdes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20248613Sdes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21248613Sdes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22248613Sdes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23248613Sdes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24248613Sdes * 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 */ 64int usb_debug = 0; 65 66SYSCTL_NODE(_hw, OID_AUTO, usb, CTLFLAG_RW, 0, "USB debugging"); 67SYSCTL_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 *------------------------------------------------------------------------*/ 75void 76usb_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 *------------------------------------------------------------------------*/ 91void 92usb_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 *------------------------------------------------------------------------*/ 111void 112usb_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 *------------------------------------------------------------------------*/ 128void 129usb_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 *------------------------------------------------------------------------*/ 153void 154usb_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