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ubsa.c revision 1.30.2.1
      1  1.30.2.1  jdolecek /*	$NetBSD: ubsa.c,v 1.30.2.1 2017/12/03 11:37:34 jdolecek Exp $	*/
      2       1.1  augustss /*-
      3       1.1  augustss  * Copyright (c) 2002, Alexander Kabaev <kan.FreeBSD.org>.
      4       1.1  augustss  * All rights reserved.
      5       1.1  augustss  *
      6       1.1  augustss  * Redistribution and use in source and binary forms, with or without
      7       1.1  augustss  * modification, are permitted provided that the following conditions
      8       1.1  augustss  * are met:
      9       1.1  augustss  * 1. Redistributions of source code must retain the above copyright
     10       1.1  augustss  *    notice, this list of conditions and the following disclaimer.
     11       1.1  augustss  * 2. Redistributions in binary form must reproduce the above copyright
     12       1.1  augustss  *    notice, this list of conditions and the following disclaimer in the
     13       1.1  augustss  *    documentation and/or other materials provided with the distribution.
     14       1.1  augustss  *
     15       1.1  augustss  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     16       1.1  augustss  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     17       1.1  augustss  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     18       1.1  augustss  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     19       1.1  augustss  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     20       1.1  augustss  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     21       1.1  augustss  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     22       1.1  augustss  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     23       1.1  augustss  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     24       1.1  augustss  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     25       1.1  augustss  * SUCH DAMAGE.
     26       1.1  augustss  */
     27       1.1  augustss /*
     28       1.1  augustss  * Copyright (c) 2001 The NetBSD Foundation, Inc.
     29       1.1  augustss  * All rights reserved.
     30       1.1  augustss  *
     31       1.1  augustss  * This code is derived from software contributed to The NetBSD Foundation
     32       1.1  augustss  * by Ichiro FUKUHARA (ichiro (at) ichiro.org).
     33       1.1  augustss  *
     34       1.1  augustss  * Redistribution and use in source and binary forms, with or without
     35       1.1  augustss  * modification, are permitted provided that the following conditions
     36       1.1  augustss  * are met:
     37       1.1  augustss  * 1. Redistributions of source code must retain the above copyright
     38       1.1  augustss  *    notice, this list of conditions and the following disclaimer.
     39       1.1  augustss  * 2. Redistributions in binary form must reproduce the above copyright
     40       1.1  augustss  *    notice, this list of conditions and the following disclaimer in the
     41       1.1  augustss  *    documentation and/or other materials provided with the distribution.
     42       1.1  augustss  *
     43       1.1  augustss  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     44       1.1  augustss  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     45       1.1  augustss  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     46       1.1  augustss  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     47       1.1  augustss  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     48       1.1  augustss  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     49       1.1  augustss  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     50       1.1  augustss  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     51       1.1  augustss  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     52       1.1  augustss  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     53       1.1  augustss  * POSSIBILITY OF SUCH DAMAGE.
     54       1.1  augustss  */
     55       1.1  augustss 
     56       1.1  augustss #include <sys/cdefs.h>
     57  1.30.2.1  jdolecek __KERNEL_RCSID(0, "$NetBSD: ubsa.c,v 1.30.2.1 2017/12/03 11:37:34 jdolecek Exp $");
     58  1.30.2.1  jdolecek 
     59  1.30.2.1  jdolecek #ifdef _KERNEL_OPT
     60  1.30.2.1  jdolecek #include "opt_usb.h"
     61  1.30.2.1  jdolecek #endif
     62       1.1  augustss 
     63       1.1  augustss #include <sys/param.h>
     64       1.1  augustss #include <sys/systm.h>
     65       1.1  augustss #include <sys/kernel.h>
     66  1.30.2.1  jdolecek #include <sys/kmem.h>
     67       1.1  augustss #include <sys/ioccom.h>
     68       1.1  augustss #include <sys/fcntl.h>
     69       1.1  augustss #include <sys/conf.h>
     70       1.1  augustss #include <sys/tty.h>
     71       1.1  augustss #include <sys/file.h>
     72       1.1  augustss #include <sys/select.h>
     73       1.1  augustss #include <sys/proc.h>
     74       1.4      fvdl #include <sys/device.h>
     75       1.1  augustss #include <sys/poll.h>
     76       1.1  augustss #include <sys/sysctl.h>
     77       1.1  augustss 
     78       1.1  augustss #include <dev/usb/usb.h>
     79       1.1  augustss #include <dev/usb/usbcdc.h>
     80       1.1  augustss 
     81       1.1  augustss #include <dev/usb/usbdi.h>
     82       1.1  augustss #include <dev/usb/usbdi_util.h>
     83       1.1  augustss #include <dev/usb/usbdevs.h>
     84       1.1  augustss #include <dev/usb/usb_quirks.h>
     85       1.1  augustss 
     86       1.1  augustss #include <dev/usb/ucomvar.h>
     87      1.20    ichiro #include <dev/usb/ubsavar.h>
     88       1.1  augustss 
     89       1.1  augustss #ifdef UBSA_DEBUG
     90      1.27     rmind int		ubsadebug = 0;
     91       1.1  augustss 
     92       1.1  augustss #define	DPRINTFN(n, x)	do { \
     93       1.1  augustss 				if (ubsadebug > (n)) \
     94      1.26    dyoung 					printf x; \
     95       1.1  augustss 			} while (0)
     96       1.1  augustss #else
     97       1.1  augustss #define	DPRINTFN(n, x)
     98       1.1  augustss #endif
     99       1.1  augustss #define	DPRINTF(x) DPRINTFN(0, x)
    100       1.1  augustss 
    101       1.1  augustss struct	ucom_methods ubsa_methods = {
    102  1.30.2.1  jdolecek 	.ucom_get_status = ubsa_get_status,
    103  1.30.2.1  jdolecek 	.ucom_set = ubsa_set,
    104  1.30.2.1  jdolecek 	.ucom_param = ubsa_param,
    105  1.30.2.1  jdolecek 	.ucom_ioctl = NULL,
    106  1.30.2.1  jdolecek 	.ucom_open = ubsa_open,
    107  1.30.2.1  jdolecek 	.ucom_close = ubsa_close,
    108  1.30.2.1  jdolecek 	.ucom_read = NULL,
    109  1.30.2.1  jdolecek 	.ucom_write = NULL
    110       1.1  augustss };
    111       1.1  augustss 
    112       1.1  augustss Static const struct usb_devno ubsa_devs[] = {
    113       1.1  augustss 	/* BELKIN F5U103 */
    114       1.1  augustss 	{ USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U103 },
    115       1.1  augustss 	/* BELKIN F5U120 */
    116       1.1  augustss 	{ USB_VENDOR_BELKIN, USB_PRODUCT_BELKIN_F5U120 },
    117       1.1  augustss 	/* GoHubs GO-COM232 */
    118       1.1  augustss 	{ USB_VENDOR_ETEK, USB_PRODUCT_ETEK_1COM },
    119       1.1  augustss 	/* GoHubs GO-COM232 */
    120       1.1  augustss 	{ USB_VENDOR_GOHUBS, USB_PRODUCT_GOHUBS_GOCOM232 },
    121       1.1  augustss 	/* Peracom */
    122       1.1  augustss 	{ USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_SERIAL1 },
    123      1.17   mlelstv 	/* Option N.V. */
    124      1.17   mlelstv 	{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_MC3G },
    125      1.17   mlelstv 	{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_QUADUMTS2 },
    126      1.17   mlelstv 	{ USB_VENDOR_OPTIONNV, USB_PRODUCT_OPTIONNV_QUADUMTS },
    127      1.18      salo 	/* AnyDATA ADU-E100H */
    128      1.18      salo 	{ USB_VENDOR_ANYDATA, USB_PRODUCT_ANYDATA_ADU_E100H },
    129       1.1  augustss };
    130       1.1  augustss #define ubsa_lookup(v, p) usb_lookup(ubsa_devs, v, p)
    131       1.1  augustss 
    132      1.23      cube int ubsa_match(device_t, cfdata_t, void *);
    133      1.21    dyoung void ubsa_attach(device_t, device_t, void *);
    134      1.21    dyoung void ubsa_childdet(device_t, device_t);
    135      1.21    dyoung int ubsa_detach(device_t, int);
    136      1.21    dyoung int ubsa_activate(device_t, enum devact);
    137      1.21    dyoung 
    138      1.21    dyoung extern struct cfdriver ubsa_cd;
    139      1.21    dyoung 
    140      1.23      cube CFATTACH_DECL2_NEW(ubsa, sizeof(struct ubsa_softc),
    141      1.21    dyoung     ubsa_match, ubsa_attach, ubsa_detach, ubsa_activate, NULL, ubsa_childdet);
    142       1.1  augustss 
    143  1.30.2.1  jdolecek int
    144      1.26    dyoung ubsa_match(device_t parent, cfdata_t match, void *aux)
    145       1.1  augustss {
    146      1.26    dyoung 	struct usb_attach_arg *uaa = aux;
    147       1.1  augustss 
    148  1.30.2.1  jdolecek 	return (ubsa_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ?
    149       1.1  augustss 		UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
    150       1.1  augustss }
    151       1.1  augustss 
    152  1.30.2.1  jdolecek void
    153      1.26    dyoung ubsa_attach(device_t parent, device_t self, void *aux)
    154       1.1  augustss {
    155      1.26    dyoung 	struct ubsa_softc *sc = device_private(self);
    156      1.26    dyoung 	struct usb_attach_arg *uaa = aux;
    157  1.30.2.1  jdolecek 	struct usbd_device *dev = uaa->uaa_device;
    158       1.1  augustss 	usb_config_descriptor_t *cdesc;
    159       1.1  augustss 	usb_interface_descriptor_t *id;
    160       1.1  augustss 	usb_endpoint_descriptor_t *ed;
    161      1.12  augustss 	char *devinfop;
    162       1.1  augustss 	usbd_status err;
    163  1.30.2.1  jdolecek 	struct ucom_attach_args ucaa;
    164       1.1  augustss 	int i;
    165       1.1  augustss 
    166      1.23      cube 	sc->sc_dev = self;
    167      1.24    plunky 
    168      1.24    plunky 	aprint_naive("\n");
    169      1.24    plunky 	aprint_normal("\n");
    170      1.24    plunky 
    171      1.12  augustss 	devinfop = usbd_devinfo_alloc(dev, 0);
    172      1.23      cube 	aprint_normal_dev(self, "%s\n", devinfop);
    173      1.12  augustss 	usbd_devinfo_free(devinfop);
    174       1.1  augustss 
    175       1.1  augustss         sc->sc_udev = dev;
    176      1.20    ichiro 	sc->sc_config_index = UBSA_DEFAULT_CONFIG_INDEX;
    177      1.20    ichiro 	sc->sc_numif = 1; /* default device has one interface */
    178       1.1  augustss 
    179       1.1  augustss 	/*
    180       1.1  augustss 	 * initialize rts, dtr variables to something
    181       1.3  augustss 	 * different from boolean 0, 1
    182       1.1  augustss 	 */
    183       1.1  augustss 	sc->sc_dtr = -1;
    184       1.1  augustss 	sc->sc_rts = -1;
    185       1.1  augustss 
    186      1.17   mlelstv 	/*
    187      1.17   mlelstv 	 * Quad UMTS cards use different requests to
    188      1.17   mlelstv 	 * control com settings and only some.
    189      1.17   mlelstv 	 */
    190      1.17   mlelstv 	sc->sc_quadumts = 0;
    191  1.30.2.1  jdolecek 	if (uaa->uaa_vendor == USB_VENDOR_OPTIONNV) {
    192  1.30.2.1  jdolecek 		switch (uaa->uaa_product) {
    193      1.17   mlelstv 		case USB_PRODUCT_OPTIONNV_QUADUMTS:
    194      1.17   mlelstv 		case USB_PRODUCT_OPTIONNV_QUADUMTS2:
    195      1.17   mlelstv 			sc->sc_quadumts = 1;
    196      1.17   mlelstv 			break;
    197      1.17   mlelstv 		}
    198      1.17   mlelstv 	}
    199      1.17   mlelstv 
    200       1.1  augustss 	DPRINTF(("ubsa attach: sc = %p\n", sc));
    201       1.1  augustss 
    202       1.1  augustss 	/* Move the device into the configured state. */
    203      1.20    ichiro 	err = usbd_set_config_index(dev, sc->sc_config_index, 1);
    204       1.1  augustss 	if (err) {
    205      1.23      cube 		aprint_error_dev(self,
    206      1.23      cube 		    "failed to set configuration: %s\n",
    207      1.23      cube 		    usbd_errstr(err));
    208       1.1  augustss 		sc->sc_dying = 1;
    209       1.1  augustss 		goto error;
    210       1.1  augustss 	}
    211       1.1  augustss 
    212       1.1  augustss 	/* get the config descriptor */
    213       1.1  augustss 	cdesc = usbd_get_config_descriptor(sc->sc_udev);
    214       1.1  augustss 
    215       1.1  augustss 	if (cdesc == NULL) {
    216      1.23      cube 		aprint_error_dev(self,
    217      1.23      cube 		    "failed to get configuration descriptor\n");
    218       1.1  augustss 		sc->sc_dying = 1;
    219       1.1  augustss 		goto error;
    220       1.1  augustss 	}
    221       1.1  augustss 
    222      1.20    ichiro 	sc->sc_intr_number = -1;
    223      1.20    ichiro 	sc->sc_intr_pipe = NULL;
    224      1.20    ichiro 
    225      1.20    ichiro 	/* get the interfaces */
    226      1.20    ichiro 	err = usbd_device2interface_handle(dev, UBSA_IFACE_INDEX_OFFSET,
    227      1.20    ichiro 			 &sc->sc_iface[0]);
    228       1.1  augustss 	if (err) {
    229      1.20    ichiro 		/* can not get main interface */
    230       1.1  augustss 		sc->sc_dying = 1;
    231       1.1  augustss 		goto error;
    232       1.1  augustss 	}
    233       1.1  augustss 
    234       1.1  augustss 	/* Find the endpoints */
    235      1.20    ichiro 	id = usbd_get_interface_descriptor(sc->sc_iface[0]);
    236      1.20    ichiro 	sc->sc_iface_number[0] = id->bInterfaceNumber;
    237       1.1  augustss 
    238      1.20    ichiro 	/* initialize endpoints */
    239  1.30.2.1  jdolecek 	ucaa.ucaa_bulkin = ucaa.ucaa_bulkout = -1;
    240       1.1  augustss 
    241       1.1  augustss 	for (i = 0; i < id->bNumEndpoints; i++) {
    242      1.20    ichiro 		ed = usbd_interface2endpoint_descriptor(sc->sc_iface[0], i);
    243       1.1  augustss 		if (ed == NULL) {
    244      1.23      cube 			aprint_error_dev(self,
    245      1.23      cube 			     "no endpoint descriptor for %d\n", i);
    246      1.20    ichiro 			break;
    247       1.1  augustss 		}
    248       1.1  augustss 
    249       1.1  augustss 		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
    250       1.1  augustss 		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) {
    251       1.1  augustss 			sc->sc_intr_number = ed->bEndpointAddress;
    252       1.1  augustss 			sc->sc_isize = UGETW(ed->wMaxPacketSize);
    253       1.1  augustss 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
    254       1.1  augustss 		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
    255  1.30.2.1  jdolecek 			ucaa.ucaa_bulkin = ed->bEndpointAddress;
    256  1.30.2.1  jdolecek 			ucaa.ucaa_ibufsize = UGETW(ed->wMaxPacketSize);
    257       1.1  augustss 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
    258       1.1  augustss 		    UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
    259  1.30.2.1  jdolecek 			ucaa.ucaa_bulkout = ed->bEndpointAddress;
    260  1.30.2.1  jdolecek 			ucaa.ucaa_obufsize = UGETW(ed->wMaxPacketSize);
    261       1.1  augustss 		}
    262      1.20    ichiro 	} /* end of Endpoint loop */
    263       1.1  augustss 
    264       1.1  augustss 	if (sc->sc_intr_number == -1) {
    265      1.23      cube 		aprint_error_dev(self, "Could not find interrupt in\n");
    266       1.1  augustss 		sc->sc_dying = 1;
    267       1.1  augustss 		goto error;
    268       1.1  augustss 	}
    269       1.1  augustss 
    270  1.30.2.1  jdolecek 	if (ucaa.ucaa_bulkin == -1) {
    271      1.23      cube 		aprint_error_dev(self, "Could not find data bulk in\n");
    272       1.1  augustss 		sc->sc_dying = 1;
    273       1.1  augustss 		goto error;
    274       1.1  augustss 	}
    275       1.1  augustss 
    276  1.30.2.1  jdolecek 	if (ucaa.ucaa_bulkout == -1) {
    277      1.23      cube 		aprint_error_dev(self, "Could not find data bulk out\n");
    278       1.1  augustss 		sc->sc_dying = 1;
    279       1.1  augustss 		goto error;
    280       1.1  augustss 	}
    281       1.1  augustss 
    282  1.30.2.1  jdolecek 	ucaa.ucaa_portno = 0;
    283       1.1  augustss 	/* bulkin, bulkout set above */
    284  1.30.2.1  jdolecek 	ucaa.ucaa_ibufsizepad = ucaa.ucaa_ibufsize;
    285  1.30.2.1  jdolecek 	ucaa.ucaa_opkthdrlen = 0;
    286  1.30.2.1  jdolecek 	ucaa.ucaa_device = dev;
    287  1.30.2.1  jdolecek 	ucaa.ucaa_iface = sc->sc_iface[0];
    288  1.30.2.1  jdolecek 	ucaa.ucaa_methods = &ubsa_methods;
    289  1.30.2.1  jdolecek 	ucaa.ucaa_arg = sc;
    290  1.30.2.1  jdolecek 	ucaa.ucaa_info = NULL;
    291      1.20    ichiro 	DPRINTF(("ubsa: int#=%d, in = 0x%x, out = 0x%x, intr = 0x%x\n",
    292  1.30.2.1  jdolecek 	    i, ucaa.ucaa_bulkin, ucaa.ucaa_bulkout, sc->sc_intr_number));
    293  1.30.2.1  jdolecek 	sc->sc_subdevs[0] = config_found_sm_loc(self, "ucombus", NULL, &ucaa,
    294      1.20    ichiro 				    ucomprint, ucomsubmatch);
    295       1.1  augustss 
    296  1.30.2.1  jdolecek 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev);
    297       1.1  augustss 
    298      1.26    dyoung 	return;
    299       1.1  augustss 
    300       1.1  augustss error:
    301      1.26    dyoung 	return;
    302       1.1  augustss }
    303       1.1  augustss 
    304      1.21    dyoung 
    305      1.21    dyoung void
    306      1.21    dyoung ubsa_childdet(device_t self, device_t child)
    307      1.21    dyoung {
    308      1.21    dyoung 	int i;
    309      1.21    dyoung 	struct ubsa_softc *sc = device_private(self);
    310      1.21    dyoung 
    311      1.21    dyoung 	for (i = 0; i < sc->sc_numif; i++) {
    312      1.21    dyoung 		if (sc->sc_subdevs[i] == child)
    313      1.21    dyoung 			break;
    314      1.21    dyoung 	}
    315      1.21    dyoung 	KASSERT(i < sc->sc_numif);
    316      1.21    dyoung 		sc->sc_subdevs[i] = NULL;
    317      1.21    dyoung }
    318      1.21    dyoung 
    319  1.30.2.1  jdolecek int
    320      1.26    dyoung ubsa_detach(device_t self, int flags)
    321       1.1  augustss {
    322      1.26    dyoung 	struct ubsa_softc *sc = device_private(self);
    323      1.20    ichiro 	int i;
    324       1.5      fvdl 	int rv = 0;
    325       1.1  augustss 
    326       1.1  augustss 
    327       1.1  augustss 	DPRINTF(("ubsa_detach: sc = %p\n", sc));
    328       1.1  augustss 
    329       1.1  augustss 	if (sc->sc_intr_pipe != NULL) {
    330       1.1  augustss 		usbd_abort_pipe(sc->sc_intr_pipe);
    331       1.1  augustss 		usbd_close_pipe(sc->sc_intr_pipe);
    332  1.30.2.1  jdolecek 		kmem_free(sc->sc_intr_buf, sc->sc_isize);
    333       1.1  augustss 		sc->sc_intr_pipe = NULL;
    334       1.1  augustss 	}
    335       1.1  augustss 
    336       1.1  augustss 	sc->sc_dying = 1;
    337      1.20    ichiro 	for (i = 0; i < sc->sc_numif; i++) {
    338      1.21    dyoung 		if (sc->sc_subdevs[i] != NULL)
    339      1.20    ichiro 			rv |= config_detach(sc->sc_subdevs[i], flags);
    340       1.1  augustss 	}
    341       1.1  augustss 
    342  1.30.2.1  jdolecek 	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev);
    343       1.1  augustss 
    344       1.1  augustss 	return (rv);
    345       1.1  augustss }
    346       1.1  augustss 
    347       1.2     pooka int
    348      1.26    dyoung ubsa_activate(device_t self, enum devact act)
    349       1.1  augustss {
    350      1.21    dyoung 	struct ubsa_softc *sc = device_private(self);
    351       1.1  augustss 
    352       1.1  augustss 	switch (act) {
    353       1.1  augustss 	case DVACT_DEACTIVATE:
    354       1.1  augustss 		sc->sc_dying = 1;
    355      1.25    dyoung 		return 0;
    356      1.25    dyoung 	default:
    357      1.25    dyoung 		return EOPNOTSUPP;
    358       1.1  augustss 	}
    359       1.1  augustss }
    360