umodem.c revision 1.55.10.1
1 /* $NetBSD: umodem.c,v 1.55.10.1 2007/06/18 13:56:52 itohy 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 (at) 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 1.55.10.1 2007/06/18 13:56:52 itohy 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 #ifndef USB_USE_IFATTACH 96 USB_MATCH_START(umodem, uaa); 97 #else 98 USB_IFMATCH_START(umodem, uaa); 99 #endif /* USB_USE_IFATTACH */ 100 usb_interface_descriptor_t *id; 101 int cm, acm; 102 103 #ifndef USB_USE_IFATTACH 104 if (uaa->iface == NULL) 105 #else 106 if (uaa->class != UICLASS_CDC || 107 uaa->subclass != UISUBCLASS_ABSTRACT_CONTROL_MODEL || 108 uaa->proto != UIPROTO_CDC_AT) 109 #endif /* USB_USE_IFATTACH */ 110 return (UMATCH_NONE); 111 112 id = usbd_get_interface_descriptor(uaa->iface); 113 #ifndef USB_USE_IFATTACH 114 if (id == NULL || 115 id->bInterfaceClass != UICLASS_CDC || 116 id->bInterfaceSubClass != UISUBCLASS_ABSTRACT_CONTROL_MODEL || 117 id->bInterfaceProtocol != UIPROTO_CDC_AT) 118 return (UMATCH_NONE); 119 #endif /* USB_USE_IFATTACH */ 120 121 if (umodem_get_caps(uaa->device, &cm, &acm, id) == -1) 122 return (UMATCH_NONE); 123 124 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO); 125 } 126 127 USB_ATTACH(umodem) 128 { 129 #ifndef USB_USE_IFATTACH 130 USB_ATTACH_START(umodem, sc, uaa); 131 #else 132 USB_IFATTACH_START(umodem, sc, uaa); 133 #endif /* USB_USE_IFATTACH */ 134 struct ucom_attach_args uca; 135 136 uca.portno = UCOM_UNK_PORTNO; 137 uca.methods = &umodem_methods; 138 uca.info = NULL; 139 140 if (umodem_common_attach(self, sc, uaa, &uca)) 141 USB_ATTACH_ERROR_RETURN; 142 USB_ATTACH_SUCCESS_RETURN; 143 } 144 145 #ifdef __strong_alias 146 __strong_alias(umodem_activate,umodem_common_activate) 147 #else 148 int 149 umodem_activate(device_ptr_t self, enum devact act) 150 { 151 struct umodem_softc *sc = (struct umodem_softc *)self; 152 153 return umodem_common_activate(sc, act); 154 } 155 #endif 156 157 USB_DETACH(umodem) 158 { 159 USB_DETACH_START(umodem, sc); 160 #ifdef __FreeBSD__ 161 int flags = 0; 162 #endif 163 164 return umodem_common_detach(sc, flags); 165 } 166
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