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/queue.h> 29 #include <sys/types.h> 30 #include <sys/systm.h> 31 #include <sys/kernel.h> 32 #include <sys/bus.h> 33 #include <sys/module.h> 34 #include <sys/lock.h> 35 #include <sys/mutex.h> 36 #include <sys/condvar.h> 37 #include <sys/sysctl.h> 38 #include <sys/unistd.h> 39 #include <sys/callout.h> 40 #include <sys/malloc.h> 41 #include <sys/priv.h> 42 43 #include <bus/u4b/usb.h> 44 #include <bus/u4b/usbdi.h> 45 46 #include <bus/u4b/usb_core.h> 47 #include <bus/u4b/usb_debug.h> 48 #include <bus/u4b/usb_process.h> 49 #include <bus/u4b/usb_device.h> 50 #include <bus/u4b/usb_busdma.h> 51 #include <bus/u4b/usb_transfer.h> 52 53 #include <ddb/ddb.h> 54 #include <ddb/db_sym.h> 55 56 /* 57 * Define this unconditionally in case a kernel module is loaded that 58 * has been compiled with debugging options. 59 */ 60 int usb_debug = 0; 61 62 SYSCTL_NODE(_hw, OID_AUTO, usb, CTLFLAG_RW, 0, "USB debugging"); 63 SYSCTL_INT(_hw_usb, OID_AUTO, debug, CTLFLAG_RW, 64 &usb_debug, 0, "Debug level"); 65 66 TUNABLE_INT("hw.usb.debug", &usb_debug); 67 68 /*------------------------------------------------------------------------* 69 * usb_dump_iface 70 * 71 * This function dumps information about an USB interface. 72 *------------------------------------------------------------------------*/ 73 void 74 usb_dump_iface(struct usb_interface *iface) 75 { 76 kprintf("usb_dump_iface: iface=%p\n", iface); 77 if (iface == NULL) { 78 return; 79 } 80 kprintf(" iface=%p idesc=%p altindex=%d\n", 81 iface, iface->idesc, iface->alt_index); 82 } 83 84 /*------------------------------------------------------------------------* 85 * usb_dump_device 86 * 87 * This function dumps information about an USB device. 88 *------------------------------------------------------------------------*/ 89 void 90 usb_dump_device(struct usb_device *udev) 91 { 92 kprintf("usb_dump_device: dev=%p\n", udev); 93 if (udev == NULL) { 94 return; 95 } 96 kprintf(" bus=%p \n" 97 " address=%d config=%d depth=%d speed=%d self_powered=%d\n" 98 " power=%d langid=%d\n", 99 udev->bus, 100 udev->address, udev->curr_config_no, udev->depth, udev->speed, 101 udev->flags.self_powered, udev->power, udev->langid); 102 } 103 104 /*------------------------------------------------------------------------* 105 * usb_dump_queue 106 * 107 * This function dumps the USB transfer that are queued up on an USB endpoint. 108 *------------------------------------------------------------------------*/ 109 void 110 usb_dump_queue(struct usb_endpoint *ep) 111 { 112 struct usb_xfer *xfer; 113 114 kprintf("usb_dump_queue: endpoint=%p xfer: ", ep); 115 TAILQ_FOREACH(xfer, &ep->endpoint_q.head, wait_entry) { 116 kprintf(" %p", xfer); 117 } 118 kprintf("\n"); 119 } 120 121 /*------------------------------------------------------------------------* 122 * usb_dump_endpoint 123 * 124 * This function dumps information about an USB endpoint. 125 *------------------------------------------------------------------------*/ 126 void 127 usb_dump_endpoint(struct usb_endpoint *ep) 128 { 129 if (ep) { 130 kprintf("usb_dump_endpoint: endpoint=%p", ep); 131 132 kprintf(" edesc=%p isoc_next=%d toggle_next=%d", 133 ep->edesc, ep->isoc_next, ep->toggle_next); 134 135 if (ep->edesc) { 136 kprintf(" bEndpointAddress=0x%02x", 137 ep->edesc->bEndpointAddress); 138 } 139 kprintf("\n"); 140 usb_dump_queue(ep); 141 } else { 142 kprintf("usb_dump_endpoint: endpoint=NULL\n"); 143 } 144 } 145 146 /*------------------------------------------------------------------------* 147 * usb_dump_xfer 148 * 149 * This function dumps information about an USB transfer. 150 *------------------------------------------------------------------------*/ 151 void 152 usb_dump_xfer(struct usb_xfer *xfer) 153 { 154 struct usb_device *udev; 155 kprintf("usb_dump_xfer: xfer=%p\n", xfer); 156 if (xfer == NULL) { 157 return; 158 } 159 if (xfer->endpoint == NULL) { 160 kprintf("xfer %p: endpoint=NULL\n", 161 xfer); 162 return; 163 } 164 udev = xfer->xroot->udev; 165 kprintf("xfer %p: udev=%p vid=0x%04x pid=0x%04x addr=%d " 166 "endpoint=%p ep=0x%02x attr=0x%02x\n", 167 xfer, udev, 168 UGETW(udev->ddesc.idVendor), 169 UGETW(udev->ddesc.idProduct), 170 udev->address, xfer->endpoint, 171 xfer->endpoint->edesc->bEndpointAddress, 172 xfer->endpoint->edesc->bmAttributes); 173 } 174