1/* $NetBSD: umodem.c,v 1.61 2011/12/22 20:07:02 jakllsch Exp $ */ 2 3/* 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (lennart@augustsson.net) at 9 * Carlstedt Research & Technology. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33/* 34 * Comm Class spec: http://www.usb.org/developers/devclass_docs/usbccs10.pdf 35 * http://www.usb.org/developers/devclass_docs/usbcdc11.pdf 36 */ 37 38/* 39 * TODO: 40 * - Add error recovery in various places; the big problem is what 41 * to do in a callback if there is an error. 42 * - Implement a Call Device for modems without multiplexed commands. 43 * 44 */ 45 46#include <sys/cdefs.h> 47__KERNEL_RCSID(0, "$NetBSD: umodem.c,v 1.61 2011/12/22 20:07:02 jakllsch Exp $"); 48 49#include <sys/param.h> 50#include <sys/systm.h> 51#include <sys/kernel.h> 52#include <sys/ioctl.h> 53#include <sys/conf.h> 54#include <sys/tty.h> 55#include <sys/file.h> 56#include <sys/select.h> 57#include <sys/proc.h> 58#include <sys/vnode.h> 59#include <sys/device.h> 60#include <sys/poll.h> 61 62#include <dev/usb/usb.h> 63#include <dev/usb/usbcdc.h> 64 65#include <dev/usb/usbdi.h> 66#include <dev/usb/usbdi_util.h> 67#include <dev/usb/usbdevs.h> 68#include <dev/usb/usb_quirks.h> 69 70#include <dev/usb/ucomvar.h> 71#include <dev/usb/umodemvar.h> 72 73Static struct ucom_methods umodem_methods = { 74 umodem_get_status, 75 umodem_set, 76 umodem_param, 77 umodem_ioctl, 78 umodem_open, 79 umodem_close, 80 NULL, 81 NULL, 82}; 83 84int umodem_match(device_t, cfdata_t, void *); 85void umodem_attach(device_t, device_t, void *); 86int umodem_detach(device_t, int); 87int umodem_activate(device_t, enum devact); 88 89extern struct cfdriver umodem_cd; 90 91CFATTACH_DECL_NEW(umodem, sizeof(struct umodem_softc), umodem_match, 92 umodem_attach, umodem_detach, umodem_activate); 93 94int 95umodem_match(device_t parent, cfdata_t match, void *aux) 96{ 97 struct usbif_attach_arg *uaa = aux; 98 usb_interface_descriptor_t *id; 99 int cm, acm; 100 101 if (uaa->class != UICLASS_CDC || 102 uaa->subclass != UISUBCLASS_ABSTRACT_CONTROL_MODEL || 103 uaa->proto != UIPROTO_CDC_AT) 104 return (UMATCH_NONE); 105 106 id = usbd_get_interface_descriptor(uaa->iface); 107 if (umodem_get_caps(uaa->device, &cm, &acm, id) == -1) 108 return (UMATCH_NONE); 109 110 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO); 111} 112 113void 114umodem_attach(device_t parent, device_t self, void *aux) 115{ 116 struct umodem_softc *sc = device_private(self); 117 struct usbif_attach_arg *uaa = aux; 118 struct ucom_attach_args uca; 119 120 uca.portno = UCOM_UNK_PORTNO; 121 uca.methods = &umodem_methods; 122 uca.info = NULL; 123 124 if (umodem_common_attach(self, sc, uaa, &uca)) 125 return; 126 return; 127} 128 129int 130umodem_activate(device_t self, enum devact act) 131{ 132 struct umodem_softc *sc = device_private(self); 133 134 return umodem_common_activate(sc, act); 135} 136 137int 138umodem_detach(device_t self, int flags) 139{ 140 struct umodem_softc *sc = device_private(self); 141#ifdef __FreeBSD__ 142 int flags = 0; 143#endif 144 145 return umodem_common_detach(sc, flags); 146} 147