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umodem.c revision 1.6 
      1 /*	$NetBSD: umodem.c,v 1.6 1999/01/10 11:13:36 augustss 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 (augustss (at) carlstedt.se) 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/data/cdc109c1.pdf
     42  */
     43 
     44 #include <sys/param.h>
     45 #include <sys/systm.h>
     46 #include <sys/kernel.h>
     47 #include <sys/malloc.h>
     48 #if defined(__NetBSD__)
     49 #include <sys/ioctl.h>
     50 #elif defined(__FreeBSD__)
     51 #include <sys/module.h>
     52 #include <sys/bus.h>
     53 #include <sys/ioccom.h>
     54 #include <sys/conf.h>
     55 #endif
     56 #include <sys/tty.h>
     57 #include <sys/file.h>
     58 #include <sys/select.h>
     59 #include <sys/proc.h>
     60 #include <sys/vnode.h>
     61 #include <sys/device.h>
     62 #include <sys/poll.h>
     63 
     64 #include <dev/usb/usb.h>
     65 #include <dev/usb/usbcdc.h>
     66 
     67 #include <dev/usb/usbdi.h>
     68 #include <dev/usb/usbdi_util.h>
     69 #include <dev/usb/usbdevs.h>
     70 #include <dev/usb/usb_quirks.h>
     71 
     72 #ifdef USB_DEBUG
     73 #define DPRINTF(x)	if (umodemdebug) printf x
     74 #define DPRINTFN(n,x)	if (umodemdebug>(n)) printf x
     75 int	umodemdebug = 0;
     76 #else
     77 #define DPRINTF(x)
     78 #define DPRINTFN(n,x)
     79 #endif
     80 
     81 struct umodem_softc {
     82 	bdevice sc_dev;			/* base device */
     83 	usbd_interface_handle sc_ctl;	/* control interface */
     84 	usbd_interface_handle sc_data;	/* data interface */
     85 	uByte	cmCaps;
     86 	uByte	acmCaps;
     87 };
     88 
     89 void umodem_intr __P((usbd_request_handle, usbd_private_handle, usbd_status));
     90 void umodem_disco __P((void *));
     91 
     92 USB_DECLARE_DRIVER(umodem);
     93 
     94 USB_MATCH(umodem)
     95 {
     96 	USB_MATCH_START(umodem, uaa);
     97 
     98 	usb_interface_descriptor_t *id;
     99 
    100 	if (!uaa->iface)
    101 		return (UMATCH_NONE);
    102 	id = usbd_get_interface_descriptor(uaa->iface);
    103 	if (!id ||
    104 	    id->bInterfaceClass != UCLASS_CDC ||
    105 	    id->bInterfaceSubClass != USUBCLASS_ABSTRACT_CONTROL_MODEL ||
    106 	    id->bInterfaceProtocol != UPROTO_CDC_AT)
    107 		return (UMATCH_NONE);
    108 	return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
    109 }
    110 
    111 USB_ATTACH(umodem)
    112 {
    113 	USB_ATTACH_START(umodem, sc, uaa);
    114 	usbd_interface_handle iface = uaa->iface;
    115 	usb_interface_descriptor_t *id;
    116 	char devinfo[1024];
    117 
    118 	sc->sc_ctl = iface;
    119 	id = usbd_get_interface_descriptor(iface);
    120 	usbd_devinfo(uaa->device, 0, devinfo);
    121 	USB_ATTACH_SETUP;
    122 	printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev),
    123 	       devinfo, id->bInterfaceClass, id->bInterfaceSubClass);
    124 
    125 	USB_ATTACH_SUCCESS_RETURN;
    126 }
    127 
    128 #if defined(__FreeBSD__)
    129 static int
    130 umodem_detach(device_t self)
    131 {
    132 	struct umodem_softc *sc = device_get_softc(self);
    133 	char *devinfo = (char *) device_get_desc(self);
    134 
    135 	if (devinfo) {
    136 		device_set_desc(self, NULL);
    137 		free(devinfo, M_USB);
    138 }
    139 
    140 	return 0;
    141 }
    142 #endif
    143 
    144 #if defined(__FreeBSD__)
    145 DRIVER_MODULE(umodem, usb, umodem_driver, umodem_devclass, usbd_driver_load,0);
    146 #endif
    147 
    148