NetBSD/sys/dev/usb/umodem.c

151 lines
4.4 KiB
C

/* $NetBSD: umodem.c,v 1.53 2005/04/18 18:45:02 drochner 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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 <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: umodem.c,v 1.53 2005/04/18 18:45:02 drochner Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/ioctl.h>
#include <sys/conf.h>
#include <sys/tty.h>
#include <sys/file.h>
#include <sys/select.h>
#include <sys/proc.h>
#include <sys/vnode.h>
#include <sys/device.h>
#include <sys/poll.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbcdc.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdevs.h>
#include <dev/usb/usb_quirks.h>
#include <dev/usb/usbdevs.h>
#include <dev/usb/ucomvar.h>
#include <dev/usb/umodemvar.h>
Static struct ucom_methods umodem_methods = {
umodem_get_status,
umodem_set,
umodem_param,
umodem_ioctl,
umodem_open,
umodem_close,
NULL,
NULL,
};
USB_DECLARE_DRIVER(umodem);
USB_MATCH(umodem)
{
USB_MATCH_START(umodem, uaa);
usb_interface_descriptor_t *id;
int cm, acm;
if (uaa->iface == NULL)
return (UMATCH_NONE);
id = usbd_get_interface_descriptor(uaa->iface);
if (id == NULL ||
id->bInterfaceClass != UICLASS_CDC ||
id->bInterfaceSubClass != UISUBCLASS_ABSTRACT_CONTROL_MODEL ||
id->bInterfaceProtocol != UIPROTO_CDC_AT)
return (UMATCH_NONE);
if (umodem_get_caps(uaa->device, &cm, &acm, id) == -1)
return (UMATCH_NONE);
return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
}
USB_ATTACH(umodem)
{
USB_ATTACH_START(umodem, sc, uaa);
struct ucom_attach_args uca;
uca.portno = UCOM_UNK_PORTNO;
uca.methods = &umodem_methods;
uca.info = NULL;
if (umodem_common_attach(self, sc, uaa, &uca))
USB_ATTACH_ERROR_RETURN;
USB_ATTACH_SUCCESS_RETURN;
}
#ifdef __strong_alias
__strong_alias(umodem_activate,umodem_common_activate)
#else
int
umodem_activate(device_ptr_t self, enum devact act)
{
struct umodem_softc *sc = (struct umodem_softc *)self;
return umodem_common_activate(sc, act);
}
#endif
USB_DETACH(umodem)
{
USB_DETACH_START(umodem, sc);
#ifdef __FreeBSD__
int flags = 0;
#endif
return umodem_common_detach(sc, flags);
}