1 /* $FreeBSD$ */ 2 /*- 3 * Copyright (c) 2014 Hans Petter Selasky <hselasky@FreeBSD.org> 4 * All rights reserved. 5 * 6 * This software was developed by SRI International and the University of 7 * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237) 8 * ("CTSRD"), as part of the DARPA CRASH research programme. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include USB_GLOBAL_INCLUDE_FILE 33 34 #include "umass_common.h" 35 36 struct usb_attach_arg umass_uaa; 37 38 static device_probe_t umass_probe; 39 static device_attach_t umass_attach; 40 static device_detach_t umass_detach; 41 42 static devclass_t umass_devclass; 43 44 static device_method_t umass_methods[] = { 45 /* Device interface */ 46 DEVMETHOD(device_probe, umass_probe), 47 DEVMETHOD(device_attach, umass_attach), 48 DEVMETHOD(device_detach, umass_detach), 49 50 DEVMETHOD_END 51 }; 52 53 static driver_t umass_driver = { 54 .name = "umass", 55 .methods = umass_methods, 56 }; 57 58 DRIVER_MODULE(umass, uhub, umass_driver, umass_devclass, NULL, 0); 59 60 static int 61 umass_probe(device_t dev) 62 { 63 struct usb_attach_arg *uaa = device_get_ivars(dev); 64 65 if (uaa->usb_mode != USB_MODE_HOST || 66 uaa->info.bInterfaceClass != UICLASS_MASS || 67 uaa->info.bInterfaceSubClass != UISUBCLASS_SCSI || 68 uaa->info.bInterfaceProtocol != UIPROTO_MASS_BBB || 69 device_get_unit(dev) != 0) 70 return (ENXIO); 71 return (0); 72 } 73 74 static int 75 umass_attach(device_t dev) 76 { 77 struct usb_attach_arg *uaa = device_get_ivars(dev); 78 umass_uaa = *uaa; 79 return (0); /* success */ 80 } 81 82 static int 83 umass_detach(device_t dev) 84 { 85 86 #ifdef USB_DEBUG 87 memset(&umass_uaa, 0, sizeof(umass_uaa)); 88 #endif 89 return (0); 90 } 91