1 /* $NetBSD: umodem.c,v 1.56 2007/03/13 13:51:56 drochner 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 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * Comm Class spec: http://www.usb.org/developers/devclass_docs/usbccs10.pdf 42 * http://www.usb.org/developers/devclass_docs/usbcdc11.pdf 43 */ 44 45 /* 46 * TODO: 47 * - Add error recovery in various places; the big problem is what 48 * to do in a callback if there is an error. 49 * - Implement a Call Device for modems without multiplexed commands. 50 * 51 */ 52 53 #include <sys/cdefs.h> 54 __KERNEL_RCSID(0, "$NetBSD: umodem.c,v 1.56 2007/03/13 13:51:56 drochner Exp $"); 55 56 #include <sys/param.h> 57 #include <sys/systm.h> 58 #include <sys/kernel.h> 59 #include <sys/ioctl.h> 60 #include <sys/conf.h> 61 #include <sys/tty.h> 62 #include <sys/file.h> 63 #include <sys/select.h> 64 #include <sys/proc.h> 65 #include <sys/vnode.h> 66 #include <sys/device.h> 67 #include <sys/poll.h> 68 69 #include <dev/usb/usb.h> 70 #include <dev/usb/usbcdc.h> 71 72 #include <dev/usb/usbdi.h> 73 #include <dev/usb/usbdi_util.h> 74 #include <dev/usb/usbdevs.h> 75 #include <dev/usb/usb_quirks.h> 76 77 #include <dev/usb/ucomvar.h> 78 #include <dev/usb/umodemvar.h> 79 80 Static struct ucom_methods umodem_methods = { 81 umodem_get_status, 82 umodem_set, 83 umodem_param, 84 umodem_ioctl, 85 umodem_open, 86 umodem_close, 87 NULL, 88 NULL, 89 }; 90 91 USB_DECLARE_DRIVER(umodem); 92 93 USB_MATCH(umodem) 94 { 95 USB_IFMATCH_START(umodem, uaa); 96 usb_interface_descriptor_t *id; 97 int cm, acm; 98 99 if (uaa->class != UICLASS_CDC || 100 uaa->subclass != UISUBCLASS_ABSTRACT_CONTROL_MODEL || 101 uaa->proto != UIPROTO_CDC_AT) 102 return (UMATCH_NONE); 103 104 id = usbd_get_interface_descriptor(uaa->iface); 105 if (umodem_get_caps(uaa->device, &cm, &acm, id) == -1) 106 return (UMATCH_NONE); 107 108 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO); 109 } 110 111 USB_ATTACH(umodem) 112 { 113 USB_IFATTACH_START(umodem, sc, uaa); 114 struct ucom_attach_args uca; 115 116 uca.portno = UCOM_UNK_PORTNO; 117 uca.methods = &umodem_methods; 118 uca.info = NULL; 119 120 if (umodem_common_attach(self, sc, uaa, &uca)) 121 USB_ATTACH_ERROR_RETURN; 122 USB_ATTACH_SUCCESS_RETURN; 123 } 124 125 #ifdef __strong_alias 126 __strong_alias(umodem_activate,umodem_common_activate) 127 #else 128 int 129 umodem_activate(device_ptr_t self, enum devact act) 130 { 131 struct umodem_softc *sc = (struct umodem_softc *)self; 132 133 return umodem_common_activate(sc, act); 134 } 135 #endif 136 137 USB_DETACH(umodem) 138 { 139 USB_DETACH_START(umodem, sc); 140 #ifdef __FreeBSD__ 141 int flags = 0; 142 #endif 143 144 return umodem_common_detach(sc, flags); 145 } 146