/* $NetBSD: umodem.c,v 1.72.2.1 2020/04/12 08:44:42 martin Exp $ */ /* * Copyright (c) 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Lennart Augustsson (lennart@augustsson.net) at * Carlstedt Research & Technology. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * Comm Class spec: http://www.usb.org/developers/devclass_docs/usbccs10.pdf * http://www.usb.org/developers/devclass_docs/usbcdc11.pdf */ /* * TODO: * - Add error recovery in various places; the big problem is what * to do in a callback if there is an error. * - Implement a Call Device for modems without multiplexed commands. * */ #include __KERNEL_RCSID(0, "$NetBSD: umodem.c,v 1.72.2.1 2020/04/12 08:44:42 martin Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include Static struct ucom_methods umodem_methods = { .ucom_get_status = umodem_get_status, .ucom_set = umodem_set, .ucom_param = umodem_param, .ucom_ioctl = umodem_ioctl, .ucom_open = umodem_open, .ucom_close = umodem_close, }; static int umodem_match(device_t, cfdata_t, void *); static void umodem_attach(device_t, device_t, void *); static int umodem_detach(device_t, int); CFATTACH_DECL_NEW(umodem, sizeof(struct umodem_softc), umodem_match, umodem_attach, umodem_detach, NULL); static int umodem_match(device_t parent, cfdata_t match, void *aux) { struct usbif_attach_arg *uiaa = aux; usb_interface_descriptor_t *id; int cm, acm; if (uiaa->uiaa_class != UICLASS_CDC || uiaa->uiaa_subclass != UISUBCLASS_ABSTRACT_CONTROL_MODEL || !(uiaa->uiaa_proto == UIPROTO_CDC_NOCLASS || uiaa->uiaa_proto == UIPROTO_CDC_AT)) return UMATCH_NONE; id = usbd_get_interface_descriptor(uiaa->uiaa_iface); if (umodem_get_caps(uiaa->uiaa_device, &cm, &acm, id) == -1) return UMATCH_NONE; return UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO; } static void umodem_attach(device_t parent, device_t self, void *aux) { struct umodem_softc *sc = device_private(self); struct usbif_attach_arg *uiaa = aux; struct ucom_attach_args ucaa; memset(&ucaa, 0, sizeof(ucaa)); ucaa.ucaa_portno = UCOM_UNK_PORTNO; ucaa.ucaa_methods = &umodem_methods; ucaa.ucaa_info = NULL; if (!pmf_device_register(self, NULL, NULL)) aprint_error_dev(self, "couldn't establish power handler"); if (umodem_common_attach(self, sc, uiaa, &ucaa)) return; return; } static int umodem_detach(device_t self, int flags) { struct umodem_softc *sc = device_private(self); pmf_device_deregister(self); return umodem_common_detach(sc, flags); }