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umass.c revision 1.123.6.1
      1  1.123.6.1        ad /*	$NetBSD: umass.c,v 1.123.6.1 2007/03/13 16:50:55 ad Exp $	*/
      2      1.102   mycroft 
      3      1.102   mycroft /*
      4      1.102   mycroft  * Copyright (c) 2003 The NetBSD Foundation, Inc.
      5      1.102   mycroft  * All rights reserved.
      6      1.102   mycroft  *
      7      1.102   mycroft  * This code is derived from software contributed to The NetBSD Foundation
      8      1.104   mycroft  * by Charles M. Hannum.
      9      1.102   mycroft  *
     10      1.102   mycroft  * Redistribution and use in source and binary forms, with or without
     11      1.102   mycroft  * modification, are permitted provided that the following conditions
     12      1.102   mycroft  * are met:
     13      1.102   mycroft  * 1. Redistributions of source code must retain the above copyright
     14      1.102   mycroft  *    notice, this list of conditions and the following disclaimer.
     15      1.102   mycroft  * 2. Redistributions in binary form must reproduce the above copyright
     16      1.102   mycroft  *    notice, this list of conditions and the following disclaimer in the
     17      1.102   mycroft  *    documentation and/or other materials provided with the distribution.
     18      1.102   mycroft  * 3. All advertising materials mentioning features or use of this software
     19      1.102   mycroft  *    must display the following acknowledgement:
     20      1.102   mycroft  *        This product includes software developed by the NetBSD
     21      1.102   mycroft  *        Foundation, Inc. and its contributors.
     22      1.102   mycroft  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23      1.102   mycroft  *    contributors may be used to endorse or promote products derived
     24      1.102   mycroft  *    from this software without specific prior written permission.
     25      1.102   mycroft  *
     26      1.102   mycroft  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27      1.102   mycroft  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28      1.102   mycroft  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29      1.102   mycroft  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30      1.102   mycroft  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31      1.102   mycroft  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32      1.102   mycroft  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33      1.102   mycroft  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34      1.102   mycroft  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35      1.102   mycroft  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36      1.102   mycroft  * POSSIBILITY OF SUCH DAMAGE.
     37      1.102   mycroft  */
     38      1.102   mycroft 
     39        1.1   thorpej /*-
     40        1.1   thorpej  * Copyright (c) 1999 MAEKAWA Masahide <bishop (at) rr.iij4u.or.jp>,
     41       1.28  augustss  *		      Nick Hibma <n_hibma (at) freebsd.org>
     42        1.1   thorpej  * All rights reserved.
     43        1.1   thorpej  *
     44        1.1   thorpej  * Redistribution and use in source and binary forms, with or without
     45        1.1   thorpej  * modification, are permitted provided that the following conditions
     46        1.1   thorpej  * are met:
     47        1.1   thorpej  * 1. Redistributions of source code must retain the above copyright
     48        1.1   thorpej  *    notice, this list of conditions and the following disclaimer.
     49        1.1   thorpej  * 2. Redistributions in binary form must reproduce the above copyright
     50        1.1   thorpej  *    notice, this list of conditions and the following disclaimer in the
     51        1.1   thorpej  *    documentation and/or other materials provided with the distribution.
     52        1.1   thorpej  *
     53        1.1   thorpej  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     54        1.1   thorpej  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     55        1.1   thorpej  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     56        1.1   thorpej  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     57        1.1   thorpej  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     58        1.1   thorpej  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     59        1.1   thorpej  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     60        1.1   thorpej  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     61        1.1   thorpej  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     62        1.1   thorpej  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     63        1.1   thorpej  * SUCH DAMAGE.
     64        1.1   thorpej  *
     65       1.28  augustss  *     $FreeBSD: src/sys/dev/usb/umass.c,v 1.13 2000/03/26 01:39:12 n_hibma Exp $
     66       1.28  augustss  */
     67       1.28  augustss 
     68       1.28  augustss /*
     69       1.47  augustss  * Universal Serial Bus Mass Storage Class specs:
     70      1.108       wiz  * http://www.usb.org/developers/devclass_docs/usb_msc_overview_1.2.pdf
     71      1.108       wiz  * http://www.usb.org/developers/devclass_docs/usbmassbulk_10.pdf
     72      1.108       wiz  * http://www.usb.org/developers/devclass_docs/usb_msc_cbi_1.1.pdf
     73      1.108       wiz  * http://www.usb.org/developers/devclass_docs/usbmass-ufi10.pdf
     74       1.28  augustss  */
     75       1.28  augustss 
     76       1.28  augustss /*
     77      1.109    keihan  * Ported to NetBSD by Lennart Augustsson <augustss (at) NetBSD.org>.
     78       1.90     pooka  * Parts of the code written by Jason R. Thorpe <thorpej (at) shagadelic.org>.
     79        1.1   thorpej  */
     80        1.1   thorpej 
     81        1.1   thorpej /*
     82       1.28  augustss  * The driver handles 3 Wire Protocols
     83       1.28  augustss  * - Command/Bulk/Interrupt (CBI)
     84       1.28  augustss  * - Command/Bulk/Interrupt with Command Completion Interrupt (CBI with CCI)
     85       1.28  augustss  * - Mass Storage Bulk-Only (BBB)
     86       1.28  augustss  *   (BBB refers Bulk/Bulk/Bulk for Command/Data/Status phases)
     87       1.28  augustss  *
     88       1.28  augustss  * Over these wire protocols it handles the following command protocols
     89       1.28  augustss  * - SCSI
     90       1.54  augustss  * - 8070 (ATA/ATAPI for rewritable removable media)
     91       1.54  augustss  * - UFI (USB Floppy Interface)
     92        1.1   thorpej  *
     93       1.54  augustss  * 8070i is a transformed version of the SCSI command set. UFI is a transformed
     94       1.88  augustss  * version of the 8070i command set.  The sc->transform method is used to
     95       1.54  augustss  * convert the commands into the appropriate format (if at all necessary).
     96       1.54  augustss  * For example, ATAPI requires all commands to be 12 bytes in length amongst
     97       1.54  augustss  * other things.
     98        1.3   thorpej  *
     99       1.28  augustss  * The source code below is marked and can be split into a number of pieces
    100       1.28  augustss  * (in this order):
    101        1.3   thorpej  *
    102       1.28  augustss  * - probe/attach/detach
    103       1.28  augustss  * - generic transfer routines
    104       1.28  augustss  * - BBB
    105       1.28  augustss  * - CBI
    106       1.28  augustss  * - CBI_I (in addition to functions from CBI)
    107       1.28  augustss  * - CAM (Common Access Method)
    108       1.28  augustss  * - SCSI
    109       1.28  augustss  * - UFI
    110       1.28  augustss  * - 8070i
    111        1.3   thorpej  *
    112       1.28  augustss  * The protocols are implemented using a state machine, for the transfers as
    113       1.28  augustss  * well as for the resets. The state machine is contained in umass_*_state.
    114       1.28  augustss  * The state machine is started through either umass_*_transfer or
    115       1.28  augustss  * umass_*_reset.
    116       1.28  augustss  *
    117       1.28  augustss  * The reason for doing this is a) CAM performs a lot better this way and b) it
    118       1.28  augustss  * avoids using tsleep from interrupt context (for example after a failed
    119       1.28  augustss  * transfer).
    120        1.1   thorpej  */
    121        1.1   thorpej 
    122       1.28  augustss /*
    123       1.28  augustss  * The SCSI related part of this driver has been derived from the
    124       1.28  augustss  * dev/ppbus/vpo.c driver, by Nicolas Souchu (nsouch (at) freebsd.org).
    125        1.1   thorpej  *
    126       1.28  augustss  * The CAM layer uses so called actions which are messages sent to the host
    127       1.28  augustss  * adapter for completion. The actions come in through umass_cam_action. The
    128       1.28  augustss  * appropriate block of routines is called depending on the transport protocol
    129       1.28  augustss  * in use. When the transfer has finished, these routines call
    130       1.28  augustss  * umass_cam_cb again to complete the CAM command.
    131        1.1   thorpej  */
    132       1.64     lukem 
    133       1.64     lukem #include <sys/cdefs.h>
    134  1.123.6.1        ad __KERNEL_RCSID(0, "$NetBSD: umass.c,v 1.123.6.1 2007/03/13 16:50:55 ad Exp $");
    135        1.1   thorpej 
    136       1.29     enami #include "atapibus.h"
    137       1.79  augustss #include "scsibus.h"
    138       1.80  augustss #include "wd.h"
    139       1.29     enami 
    140        1.1   thorpej #include <sys/param.h>
    141        1.1   thorpej #include <sys/systm.h>
    142        1.1   thorpej #include <sys/kernel.h>
    143       1.28  augustss #include <sys/conf.h>
    144       1.28  augustss #if defined(__NetBSD__) || defined(__OpenBSD__)
    145       1.28  augustss #include <sys/buf.h>
    146       1.28  augustss #include <sys/device.h>
    147        1.1   thorpej #include <sys/malloc.h>
    148       1.28  augustss #undef KASSERT
    149       1.28  augustss #define KASSERT(cond, msg)
    150       1.28  augustss #elif defined(__FreeBSD__)
    151       1.28  augustss #include <sys/module.h>
    152       1.28  augustss #include <sys/bus.h>
    153       1.28  augustss #include <machine/clock.h>
    154       1.28  augustss #endif
    155        1.1   thorpej 
    156        1.1   thorpej #include <dev/usb/usb.h>
    157        1.1   thorpej #include <dev/usb/usbdi.h>
    158        1.1   thorpej #include <dev/usb/usbdi_util.h>
    159       1.28  augustss #include <dev/usb/usbdevs.h>
    160        1.1   thorpej 
    161       1.56  augustss #include <dev/usb/umassvar.h>
    162       1.78   gehenna #include <dev/usb/umass_quirks.h>
    163       1.79  augustss #include <dev/usb/umass_scsipi.h>
    164       1.80  augustss #include <dev/usb/umass_isdata.h>
    165       1.28  augustss 
    166       1.99   mycroft #include <dev/scsipi/scsipi_all.h>
    167       1.99   mycroft #include <dev/scsipi/scsipiconf.h>
    168       1.99   mycroft 
    169       1.28  augustss 
    170       1.28  augustss #ifdef UMASS_DEBUG
    171       1.57  augustss int umassdebug = 0;
    172       1.57  augustss 
    173      1.119  drochner const char *states[TSTATE_STATES+1] = {
    174       1.28  augustss 	/* should be kept in sync with the list at transfer_state */
    175       1.28  augustss 	"Idle",
    176       1.28  augustss 	"BBB CBW",
    177       1.28  augustss 	"BBB Data",
    178       1.28  augustss 	"BBB Data bulk-in/-out clear stall",
    179       1.28  augustss 	"BBB CSW, 1st attempt",
    180       1.28  augustss 	"BBB CSW bulk-in clear stall",
    181       1.28  augustss 	"BBB CSW, 2nd attempt",
    182       1.28  augustss 	"BBB Reset",
    183       1.28  augustss 	"BBB bulk-in clear stall",
    184       1.28  augustss 	"BBB bulk-out clear stall",
    185       1.28  augustss 	"CBI Command",
    186       1.28  augustss 	"CBI Data",
    187       1.28  augustss 	"CBI Status",
    188       1.28  augustss 	"CBI Data bulk-in/-out clear stall",
    189       1.28  augustss 	"CBI Status intr-in clear stall",
    190       1.28  augustss 	"CBI Reset",
    191       1.28  augustss 	"CBI bulk-in clear stall",
    192       1.28  augustss 	"CBI bulk-out clear stall",
    193       1.28  augustss 	NULL
    194       1.28  augustss };
    195       1.28  augustss #endif
    196        1.1   thorpej 
    197       1.28  augustss /* USB device probe/attach/detach functions */
    198        1.1   thorpej USB_DECLARE_DRIVER(umass);
    199       1.38  augustss Static void umass_disco(struct umass_softc *sc);
    200        1.1   thorpej 
    201       1.28  augustss /* generic transfer functions */
    202       1.38  augustss Static usbd_status umass_setup_transfer(struct umass_softc *sc,
    203        1.1   thorpej 				usbd_pipe_handle pipe,
    204       1.28  augustss 				void *buffer, int buflen, int flags,
    205       1.38  augustss 				usbd_xfer_handle xfer);
    206       1.38  augustss Static usbd_status umass_setup_ctrl_transfer(struct umass_softc *sc,
    207       1.28  augustss 				usb_device_request_t *req,
    208       1.88  augustss 				void *buffer, int buflen, int flags,
    209       1.38  augustss 				usbd_xfer_handle xfer);
    210       1.73   gehenna Static void umass_clear_endpoint_stall(struct umass_softc *sc, int endpt,
    211       1.70   gehenna 				usbd_xfer_handle xfer);
    212       1.29     enami #if 0
    213       1.38  augustss Static void umass_reset(struct umass_softc *sc,	transfer_cb_f cb, void *priv);
    214       1.29     enami #endif
    215        1.1   thorpej 
    216        1.1   thorpej /* Bulk-Only related functions */
    217       1.75   gehenna Static void umass_bbb_transfer(struct umass_softc *, int, void *, int, void *,
    218       1.75   gehenna 			       int, int, u_int, umass_callback, void *);
    219       1.75   gehenna Static void umass_bbb_reset(struct umass_softc *, int);
    220       1.75   gehenna Static void umass_bbb_state(usbd_xfer_handle, usbd_private_handle, usbd_status);
    221       1.28  augustss 
    222       1.75   gehenna usbd_status umass_bbb_get_max_lun(struct umass_softc *, u_int8_t *);
    223       1.28  augustss 
    224       1.28  augustss /* CBI related functions */
    225       1.88  augustss Static void umass_cbi_transfer(struct umass_softc *, int, void *, int, void *,
    226       1.75   gehenna 			       int, int, u_int, umass_callback, void *);
    227       1.75   gehenna Static void umass_cbi_reset(struct umass_softc *, int);
    228       1.75   gehenna Static void umass_cbi_state(usbd_xfer_handle, usbd_private_handle, usbd_status);
    229       1.75   gehenna 
    230       1.75   gehenna Static int umass_cbi_adsc(struct umass_softc *, char *, int, usbd_xfer_handle);
    231       1.75   gehenna 
    232       1.75   gehenna const struct umass_wire_methods umass_bbb_methods = {
    233       1.75   gehenna 	umass_bbb_transfer,
    234       1.75   gehenna 	umass_bbb_reset,
    235       1.75   gehenna 	umass_bbb_state
    236       1.75   gehenna };
    237       1.75   gehenna 
    238       1.75   gehenna const struct umass_wire_methods umass_cbi_methods = {
    239       1.75   gehenna 	umass_cbi_transfer,
    240       1.75   gehenna 	umass_cbi_reset,
    241       1.75   gehenna 	umass_cbi_state
    242       1.75   gehenna };
    243       1.28  augustss 
    244       1.28  augustss #ifdef UMASS_DEBUG
    245       1.28  augustss /* General debugging functions */
    246       1.38  augustss Static void umass_bbb_dump_cbw(struct umass_softc *sc,
    247       1.38  augustss 				umass_bbb_cbw_t *cbw);
    248       1.38  augustss Static void umass_bbb_dump_csw(struct umass_softc *sc,
    249       1.38  augustss 				umass_bbb_csw_t *csw);
    250       1.38  augustss Static void umass_dump_buffer(struct umass_softc *sc, u_int8_t *buffer,
    251       1.38  augustss 				int buflen, int printlen);
    252       1.28  augustss #endif
    253       1.28  augustss 
    254       1.28  augustss 
    255       1.28  augustss /*
    256       1.28  augustss  * USB device probe/attach/detach
    257       1.28  augustss  */
    258       1.28  augustss 
    259       1.78   gehenna USB_MATCH(umass)
    260       1.28  augustss {
    261  1.123.6.1        ad 	USB_IFMATCH_START(umass, uaa);
    262       1.78   gehenna 	const struct umass_quirk *quirk;
    263       1.28  augustss 
    264       1.78   gehenna 	quirk = umass_lookup(uaa->vendor, uaa->product);
    265       1.78   gehenna 	if (quirk != NULL)
    266       1.78   gehenna 		return (quirk->uq_match);
    267       1.40  augustss 
    268  1.123.6.1        ad 	if (uaa->class != UICLASS_MASS)
    269       1.28  augustss 		return (UMATCH_NONE);
    270        1.1   thorpej 
    271  1.123.6.1        ad 	switch (uaa->subclass) {
    272       1.78   gehenna 	case UISUBCLASS_RBC:
    273       1.78   gehenna 	case UISUBCLASS_SFF8020I:
    274       1.78   gehenna 	case UISUBCLASS_QIC157:
    275       1.28  augustss 	case UISUBCLASS_UFI:
    276       1.28  augustss 	case UISUBCLASS_SFF8070I:
    277       1.78   gehenna 	case UISUBCLASS_SCSI:
    278       1.40  augustss 		break;
    279       1.28  augustss 	default:
    280       1.78   gehenna 		return (UMATCH_IFACECLASS);
    281       1.28  augustss 	}
    282       1.28  augustss 
    283  1.123.6.1        ad 	switch (uaa->proto) {
    284       1.78   gehenna 	case UIPROTO_MASS_CBI_I:
    285       1.28  augustss 	case UIPROTO_MASS_CBI:
    286       1.78   gehenna 	case UIPROTO_MASS_BBB_OLD:
    287       1.28  augustss 	case UIPROTO_MASS_BBB:
    288       1.28  augustss 		break;
    289       1.28  augustss 	default:
    290       1.78   gehenna 		return (UMATCH_IFACECLASS_IFACESUBCLASS);
    291       1.28  augustss 	}
    292        1.1   thorpej 
    293       1.78   gehenna 	return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
    294        1.1   thorpej }
    295        1.1   thorpej 
    296        1.1   thorpej USB_ATTACH(umass)
    297        1.1   thorpej {
    298  1.123.6.1        ad 	USB_IFATTACH_START(umass, sc, uaa);
    299       1.78   gehenna 	const struct umass_quirk *quirk;
    300        1.1   thorpej 	usb_interface_descriptor_t *id;
    301        1.1   thorpej 	usb_endpoint_descriptor_t *ed;
    302       1.78   gehenna 	const char *sWire, *sCommand;
    303      1.118  augustss 	char *devinfop;
    304       1.78   gehenna 	usbd_status err;
    305       1.79  augustss 	int i, bno, error;
    306        1.1   thorpej 
    307      1.118  augustss 	devinfop = usbd_devinfo_alloc(uaa->device, 0);
    308        1.1   thorpej 	USB_ATTACH_SETUP;
    309      1.118  augustss 	printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfop);
    310      1.118  augustss 	usbd_devinfo_free(devinfop);
    311        1.1   thorpej 
    312       1.78   gehenna 	sc->sc_udev = uaa->device;
    313       1.76   gehenna 	sc->sc_iface = uaa->iface;
    314       1.76   gehenna 	sc->sc_ifaceno = uaa->ifaceno;
    315       1.28  augustss 
    316       1.78   gehenna 	quirk = umass_lookup(uaa->vendor, uaa->product);
    317       1.78   gehenna 	if (quirk != NULL) {
    318       1.78   gehenna 		sc->sc_wire = quirk->uq_wire;
    319       1.78   gehenna 		sc->sc_cmd = quirk->uq_cmd;
    320       1.78   gehenna 		sc->sc_quirks = quirk->uq_flags;
    321       1.82  augustss 		sc->sc_busquirks = quirk->uq_busquirks;
    322       1.78   gehenna 
    323       1.78   gehenna 		if (quirk->uq_fixup != NULL)
    324       1.78   gehenna 			(*quirk->uq_fixup)(sc);
    325       1.78   gehenna 	} else {
    326       1.78   gehenna 		sc->sc_wire = UMASS_WPROTO_UNSPEC;
    327       1.78   gehenna 		sc->sc_cmd = UMASS_CPROTO_UNSPEC;
    328       1.78   gehenna 		sc->sc_quirks = 0;
    329       1.82  augustss 		sc->sc_busquirks = 0;
    330       1.78   gehenna 	}
    331       1.78   gehenna 
    332       1.78   gehenna 	if (sc->sc_wire == UMASS_WPROTO_UNSPEC) {
    333  1.123.6.1        ad 		switch (uaa->proto) {
    334       1.78   gehenna 		case UIPROTO_MASS_CBI:
    335       1.78   gehenna 			sc->sc_wire = UMASS_WPROTO_CBI;
    336       1.78   gehenna 			break;
    337       1.78   gehenna 		case UIPROTO_MASS_CBI_I:
    338       1.78   gehenna 			sc->sc_wire = UMASS_WPROTO_CBI_I;
    339       1.78   gehenna 			break;
    340       1.78   gehenna 		case UIPROTO_MASS_BBB:
    341       1.78   gehenna 		case UIPROTO_MASS_BBB_OLD:
    342       1.78   gehenna 			sc->sc_wire = UMASS_WPROTO_BBB;
    343       1.78   gehenna 			break;
    344       1.78   gehenna 		default:
    345       1.78   gehenna 			DPRINTF(UDMASS_GEN,
    346       1.78   gehenna 				("%s: Unsupported wire protocol %u\n",
    347       1.78   gehenna 				USBDEVNAME(sc->sc_dev),
    348  1.123.6.1        ad 				uaa->proto));
    349       1.78   gehenna 			USB_ATTACH_ERROR_RETURN;
    350       1.78   gehenna 		}
    351       1.40  augustss 	}
    352       1.28  augustss 
    353       1.78   gehenna 	if (sc->sc_cmd == UMASS_CPROTO_UNSPEC) {
    354  1.123.6.1        ad 		switch (uaa->subclass) {
    355       1.78   gehenna 		case UISUBCLASS_SCSI:
    356       1.78   gehenna 			sc->sc_cmd = UMASS_CPROTO_SCSI;
    357       1.78   gehenna 			break;
    358       1.78   gehenna 		case UISUBCLASS_UFI:
    359       1.78   gehenna 			sc->sc_cmd = UMASS_CPROTO_UFI;
    360       1.78   gehenna 			break;
    361       1.78   gehenna 		case UISUBCLASS_SFF8020I:
    362       1.78   gehenna 		case UISUBCLASS_SFF8070I:
    363       1.78   gehenna 		case UISUBCLASS_QIC157:
    364       1.78   gehenna 			sc->sc_cmd = UMASS_CPROTO_ATAPI;
    365       1.78   gehenna 			break;
    366       1.78   gehenna 		case UISUBCLASS_RBC:
    367       1.78   gehenna 			sc->sc_cmd = UMASS_CPROTO_RBC;
    368       1.78   gehenna 			break;
    369       1.78   gehenna 		default:
    370       1.78   gehenna 			DPRINTF(UDMASS_GEN,
    371       1.78   gehenna 				("%s: Unsupported command protocol %u\n",
    372       1.78   gehenna 				USBDEVNAME(sc->sc_dev),
    373  1.123.6.1        ad 				uaa->subclass));
    374       1.51   tsutsui 			USB_ATTACH_ERROR_RETURN;
    375       1.78   gehenna 		}
    376       1.78   gehenna 	}
    377       1.17   thorpej 
    378       1.78   gehenna 	switch (sc->sc_wire) {
    379       1.78   gehenna 	case UMASS_WPROTO_CBI:
    380       1.78   gehenna 		sWire = "CBI";
    381       1.32  augustss 		break;
    382       1.78   gehenna 	case UMASS_WPROTO_CBI_I:
    383       1.78   gehenna 		sWire = "CBI with CCI";
    384       1.28  augustss 		break;
    385       1.78   gehenna 	case UMASS_WPROTO_BBB:
    386       1.78   gehenna 		sWire = "Bulk-Only";
    387       1.28  augustss 		break;
    388       1.17   thorpej 	default:
    389       1.78   gehenna 		sWire = "unknown";
    390       1.28  augustss 		break;
    391       1.17   thorpej 	}
    392       1.78   gehenna 
    393       1.78   gehenna 	switch (sc->sc_cmd) {
    394       1.78   gehenna 	case UMASS_CPROTO_RBC:
    395       1.78   gehenna 		sCommand = "RBC";
    396       1.78   gehenna 		break;
    397       1.78   gehenna 	case UMASS_CPROTO_SCSI:
    398       1.78   gehenna 		sCommand = "SCSI";
    399       1.28  augustss 		break;
    400       1.78   gehenna 	case UMASS_CPROTO_UFI:
    401       1.78   gehenna 		sCommand = "UFI";
    402       1.28  augustss 		break;
    403       1.78   gehenna 	case UMASS_CPROTO_ATAPI:
    404       1.78   gehenna 		sCommand = "ATAPI";
    405       1.32  augustss 		break;
    406       1.80  augustss 	case UMASS_CPROTO_ISD_ATA:
    407       1.80  augustss 		sCommand = "ISD-ATA";
    408       1.80  augustss 		break;
    409       1.17   thorpej 	default:
    410       1.78   gehenna 		sCommand = "unknown";
    411       1.32  augustss 		break;
    412       1.17   thorpej 	}
    413       1.78   gehenna 
    414       1.78   gehenna 	printf("%s: using %s over %s\n", USBDEVNAME(sc->sc_dev), sCommand,
    415       1.78   gehenna 	       sWire);
    416        1.1   thorpej 
    417      1.104   mycroft 	if (quirk != NULL && quirk->uq_init != NULL) {
    418      1.104   mycroft 		err = (*quirk->uq_init)(sc);
    419      1.104   mycroft 		if (err) {
    420      1.105  augustss 			printf("%s: quirk init failed\n",
    421      1.105  augustss 			       USBDEVNAME(sc->sc_dev));
    422      1.104   mycroft 			umass_disco(sc);
    423      1.104   mycroft 			USB_ATTACH_ERROR_RETURN;
    424      1.104   mycroft 		}
    425      1.104   mycroft 	}
    426      1.104   mycroft 
    427        1.1   thorpej 	/*
    428       1.28  augustss 	 * In addition to the Control endpoint the following endpoints
    429       1.28  augustss 	 * are required:
    430       1.28  augustss 	 * a) bulk-in endpoint.
    431       1.28  augustss 	 * b) bulk-out endpoint.
    432       1.28  augustss 	 * and for Control/Bulk/Interrupt with CCI (CBI_I)
    433       1.28  augustss 	 * c) intr-in
    434        1.1   thorpej 	 *
    435        1.1   thorpej 	 * The endpoint addresses are not fixed, so we have to read them
    436        1.1   thorpej 	 * from the device descriptors of the current interface.
    437        1.1   thorpej 	 */
    438  1.123.6.1        ad 	id = usbd_get_interface_descriptor(sc->sc_iface);
    439        1.1   thorpej 	for (i = 0 ; i < id->bNumEndpoints ; i++) {
    440       1.76   gehenna 		ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
    441       1.78   gehenna 		if (ed == NULL) {
    442        1.1   thorpej 			printf("%s: could not read endpoint descriptor\n",
    443        1.1   thorpej 			       USBDEVNAME(sc->sc_dev));
    444        1.1   thorpej 			USB_ATTACH_ERROR_RETURN;
    445        1.1   thorpej 		}
    446       1.11  augustss 		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN
    447        1.1   thorpej 		    && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
    448       1.73   gehenna 			sc->sc_epaddr[UMASS_BULKIN] = ed->bEndpointAddress;
    449       1.11  augustss 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT
    450        1.1   thorpej 		    && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
    451       1.73   gehenna 			sc->sc_epaddr[UMASS_BULKOUT] = ed->bEndpointAddress;
    452       1.78   gehenna 		} else if (sc->sc_wire == UMASS_WPROTO_CBI_I
    453       1.28  augustss 		    && UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN
    454       1.28  augustss 		    && (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) {
    455       1.73   gehenna 			sc->sc_epaddr[UMASS_INTRIN] = ed->bEndpointAddress;
    456       1.28  augustss #ifdef UMASS_DEBUG
    457       1.28  augustss 			if (UGETW(ed->wMaxPacketSize) > 2) {
    458       1.28  augustss 				DPRINTF(UDMASS_CBI, ("%s: intr size is %d\n",
    459       1.28  augustss 					USBDEVNAME(sc->sc_dev),
    460       1.28  augustss 					UGETW(ed->wMaxPacketSize)));
    461       1.28  augustss 			}
    462       1.28  augustss #endif
    463        1.1   thorpej 		}
    464        1.1   thorpej 	}
    465        1.1   thorpej 
    466       1.28  augustss 	/* check whether we found all the endpoints we need */
    467       1.73   gehenna 	if (!sc->sc_epaddr[UMASS_BULKIN] || !sc->sc_epaddr[UMASS_BULKOUT] ||
    468       1.78   gehenna 	    (sc->sc_wire == UMASS_WPROTO_CBI_I &&
    469       1.78   gehenna 	     !sc->sc_epaddr[UMASS_INTRIN])) {
    470      1.105  augustss 		printf("%s: endpoint not found %u/%u/%u\n",
    471      1.105  augustss 		       USBDEVNAME(sc->sc_dev), sc->sc_epaddr[UMASS_BULKIN],
    472      1.105  augustss 		       sc->sc_epaddr[UMASS_BULKOUT],
    473      1.105  augustss 		       sc->sc_epaddr[UMASS_INTRIN]);
    474       1.28  augustss 		USB_ATTACH_ERROR_RETURN;
    475       1.28  augustss 	}
    476       1.28  augustss 
    477        1.7   thorpej 	/*
    478        1.7   thorpej 	 * Get the maximum LUN supported by the device.
    479        1.7   thorpej 	 */
    480       1.98   mycroft 	if (sc->sc_wire == UMASS_WPROTO_BBB) {
    481       1.28  augustss 		err = umass_bbb_get_max_lun(sc, &sc->maxlun);
    482       1.28  augustss 		if (err) {
    483       1.28  augustss 			printf("%s: unable to get Max Lun: %s\n",
    484       1.28  augustss 			       USBDEVNAME(sc->sc_dev), usbd_errstr(err));
    485       1.28  augustss 			USB_ATTACH_ERROR_RETURN;
    486       1.28  augustss 		}
    487       1.99   mycroft 		if (sc->maxlun > 0)
    488       1.99   mycroft 			sc->sc_busquirks |= PQUIRK_FORCELUNS;
    489       1.28  augustss 	} else {
    490       1.28  augustss 		sc->maxlun = 0;
    491        1.7   thorpej 	}
    492        1.7   thorpej 
    493        1.1   thorpej 	/* Open the bulk-in and -out pipe */
    494      1.100   mycroft 	DPRINTF(UDMASS_USB, ("%s: opening iface %p epaddr %d for BULKOUT\n",
    495      1.100   mycroft 		USBDEVNAME(sc->sc_dev), sc->sc_iface,
    496      1.100   mycroft 		sc->sc_epaddr[UMASS_BULKOUT]));
    497       1.76   gehenna 	err = usbd_open_pipe(sc->sc_iface, sc->sc_epaddr[UMASS_BULKOUT],
    498       1.73   gehenna 				USBD_EXCLUSIVE_USE,
    499       1.73   gehenna 				&sc->sc_pipe[UMASS_BULKOUT]);
    500        1.1   thorpej 	if (err) {
    501      1.105  augustss 		printf("%s: cannot open %u-out pipe (bulk)\n",
    502      1.105  augustss 		       USBDEVNAME(sc->sc_dev), sc->sc_epaddr[UMASS_BULKOUT]);
    503       1.28  augustss 		umass_disco(sc);
    504        1.1   thorpej 		USB_ATTACH_ERROR_RETURN;
    505        1.1   thorpej 	}
    506      1.100   mycroft 	DPRINTF(UDMASS_USB, ("%s: opening iface %p epaddr %d for BULKIN\n",
    507      1.100   mycroft 		USBDEVNAME(sc->sc_dev), sc->sc_iface,
    508      1.100   mycroft 		sc->sc_epaddr[UMASS_BULKIN]));
    509       1.76   gehenna 	err = usbd_open_pipe(sc->sc_iface, sc->sc_epaddr[UMASS_BULKIN],
    510       1.73   gehenna 				USBD_EXCLUSIVE_USE, &sc->sc_pipe[UMASS_BULKIN]);
    511        1.1   thorpej 	if (err) {
    512      1.105  augustss 		printf("%s: could not open %u-in pipe (bulk)\n",
    513      1.105  augustss 		       USBDEVNAME(sc->sc_dev), sc->sc_epaddr[UMASS_BULKIN]);
    514       1.28  augustss 		umass_disco(sc);
    515        1.1   thorpej 		USB_ATTACH_ERROR_RETURN;
    516        1.1   thorpej 	}
    517       1.88  augustss 	/*
    518       1.28  augustss 	 * Open the intr-in pipe if the protocol is CBI with CCI.
    519       1.28  augustss 	 * Note: early versions of the Zip drive do have an interrupt pipe, but
    520       1.28  augustss 	 * this pipe is unused
    521       1.28  augustss 	 *
    522       1.28  augustss 	 * We do not open the interrupt pipe as an interrupt pipe, but as a
    523       1.28  augustss 	 * normal bulk endpoint. We send an IN transfer down the wire at the
    524       1.28  augustss 	 * appropriate time, because we know exactly when to expect data on
    525       1.28  augustss 	 * that endpoint. This saves bandwidth, but more important, makes the
    526       1.28  augustss 	 * code for handling the data on that endpoint simpler. No data
    527       1.28  augustss 	 * arriving concurrently.
    528       1.28  augustss 	 */
    529       1.78   gehenna 	if (sc->sc_wire == UMASS_WPROTO_CBI_I) {
    530      1.100   mycroft 		DPRINTF(UDMASS_USB, ("%s: opening iface %p epaddr %d for INTRIN\n",
    531      1.100   mycroft 			USBDEVNAME(sc->sc_dev), sc->sc_iface,
    532      1.100   mycroft 			sc->sc_epaddr[UMASS_INTRIN]));
    533       1.76   gehenna 		err = usbd_open_pipe(sc->sc_iface, sc->sc_epaddr[UMASS_INTRIN],
    534       1.73   gehenna 				USBD_EXCLUSIVE_USE, &sc->sc_pipe[UMASS_INTRIN]);
    535       1.28  augustss 		if (err) {
    536      1.105  augustss 			printf("%s: couldn't open %u-in (intr)\n",
    537      1.105  augustss 			       USBDEVNAME(sc->sc_dev),
    538      1.105  augustss 			       sc->sc_epaddr[UMASS_INTRIN]);
    539       1.28  augustss 			umass_disco(sc);
    540       1.28  augustss 			USB_ATTACH_ERROR_RETURN;
    541       1.28  augustss 		}
    542       1.28  augustss 	}
    543       1.28  augustss 
    544       1.28  augustss 	/* initialisation of generic part */
    545       1.28  augustss 	sc->transfer_state = TSTATE_IDLE;
    546       1.28  augustss 
    547       1.28  augustss 	/* request a sufficient number of xfer handles */
    548       1.28  augustss 	for (i = 0; i < XFER_NR; i++) {
    549       1.28  augustss 		sc->transfer_xfer[i] = usbd_alloc_xfer(uaa->device);
    550       1.92      tron 		if (sc->transfer_xfer[i] == NULL) {
    551      1.105  augustss 			printf("%s: Out of memory\n",
    552      1.105  augustss 			       USBDEVNAME(sc->sc_dev));
    553       1.28  augustss 			umass_disco(sc);
    554       1.28  augustss 			USB_ATTACH_ERROR_RETURN;
    555       1.28  augustss 		}
    556       1.28  augustss 	}
    557       1.28  augustss 	/* Allocate buffer for data transfer (it's huge). */
    558       1.78   gehenna 	switch (sc->sc_wire) {
    559       1.78   gehenna 	case UMASS_WPROTO_BBB:
    560       1.28  augustss 		bno = XFER_BBB_DATA;
    561       1.28  augustss 		goto dalloc;
    562       1.78   gehenna 	case UMASS_WPROTO_CBI:
    563       1.28  augustss 		bno = XFER_CBI_DATA;
    564       1.28  augustss 		goto dalloc;
    565       1.78   gehenna 	case UMASS_WPROTO_CBI_I:
    566       1.28  augustss 		bno = XFER_CBI_DATA;
    567       1.28  augustss 	dalloc:
    568       1.88  augustss 		sc->data_buffer = usbd_alloc_buffer(sc->transfer_xfer[bno],
    569       1.28  augustss 						    UMASS_MAX_TRANSFER_SIZE);
    570       1.28  augustss 		if (sc->data_buffer == NULL) {
    571      1.105  augustss 			printf("%s: no buffer memory\n",
    572      1.105  augustss 			       USBDEVNAME(sc->sc_dev));
    573       1.28  augustss 			umass_disco(sc);
    574       1.28  augustss 			USB_ATTACH_ERROR_RETURN;
    575       1.28  augustss 		}
    576       1.28  augustss 		break;
    577       1.28  augustss 	default:
    578       1.28  augustss 		break;
    579       1.28  augustss 	}
    580        1.1   thorpej 
    581       1.28  augustss 	/* Initialise the wire protocol specific methods */
    582       1.78   gehenna 	switch (sc->sc_wire) {
    583       1.78   gehenna 	case UMASS_WPROTO_BBB:
    584       1.75   gehenna 		sc->sc_methods = &umass_bbb_methods;
    585       1.78   gehenna 		break;
    586       1.78   gehenna 	case UMASS_WPROTO_CBI:
    587       1.78   gehenna 	case UMASS_WPROTO_CBI_I:
    588       1.75   gehenna 		sc->sc_methods = &umass_cbi_methods;
    589       1.78   gehenna 		break;
    590       1.78   gehenna 	default:
    591       1.78   gehenna 		umass_disco(sc);
    592       1.78   gehenna 		USB_ATTACH_ERROR_RETURN;
    593       1.78   gehenna 	}
    594       1.28  augustss 
    595       1.79  augustss 	error = 0;
    596       1.79  augustss 	switch (sc->sc_cmd) {
    597       1.79  augustss 	case UMASS_CPROTO_RBC:
    598       1.79  augustss 	case UMASS_CPROTO_SCSI:
    599       1.79  augustss #if NSCSIBUS > 0
    600       1.79  augustss 		error = umass_scsi_attach(sc);
    601       1.79  augustss #else
    602       1.96   dsainty 		printf("%s: scsibus not configured\n", USBDEVNAME(sc->sc_dev));
    603       1.79  augustss #endif
    604       1.79  augustss 		break;
    605       1.79  augustss 
    606       1.79  augustss 	case UMASS_CPROTO_UFI:
    607       1.79  augustss 	case UMASS_CPROTO_ATAPI:
    608       1.79  augustss #if NATAPIBUS > 0
    609       1.79  augustss 		error = umass_atapi_attach(sc);
    610       1.79  augustss #else
    611       1.96   dsainty 		printf("%s: atapibus not configured\n",
    612       1.96   dsainty 		       USBDEVNAME(sc->sc_dev));
    613       1.80  augustss #endif
    614       1.80  augustss 		break;
    615       1.80  augustss 
    616       1.80  augustss 	case UMASS_CPROTO_ISD_ATA:
    617       1.80  augustss #if NWD > 0
    618       1.80  augustss 		error = umass_isdata_attach(sc);
    619       1.80  augustss #else
    620       1.80  augustss 		printf("%s: isdata not configured\n", USBDEVNAME(sc->sc_dev));
    621       1.79  augustss #endif
    622       1.79  augustss 		break;
    623       1.79  augustss 
    624       1.79  augustss 	default:
    625       1.79  augustss 		printf("%s: command protocol=0x%x not supported\n",
    626       1.79  augustss 		       USBDEVNAME(sc->sc_dev), sc->sc_cmd);
    627       1.28  augustss 		umass_disco(sc);
    628       1.28  augustss 		USB_ATTACH_ERROR_RETURN;
    629       1.28  augustss 	}
    630       1.79  augustss 	if (error) {
    631       1.79  augustss 		printf("%s: bus attach failed\n", USBDEVNAME(sc->sc_dev));
    632       1.79  augustss 		umass_disco(sc);
    633       1.79  augustss 		USB_ATTACH_ERROR_RETURN;
    634       1.79  augustss 	}
    635       1.79  augustss 
    636       1.79  augustss 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
    637       1.79  augustss 			   USBDEV(sc->sc_dev));
    638        1.1   thorpej 
    639       1.28  augustss 	DPRINTF(UDMASS_GEN, ("%s: Attach finished\n", USBDEVNAME(sc->sc_dev)));
    640       1.28  augustss 
    641        1.1   thorpej 	USB_ATTACH_SUCCESS_RETURN;
    642        1.1   thorpej }
    643        1.1   thorpej 
    644       1.28  augustss USB_DETACH(umass)
    645       1.28  augustss {
    646       1.28  augustss 	USB_DETACH_START(umass, sc);
    647      1.105  augustss 	struct umassbus_softc *scbus;
    648       1.95  augustss 	int rv = 0, i, s;
    649        1.1   thorpej 
    650       1.28  augustss 	DPRINTF(UDMASS_USB, ("%s: detached\n", USBDEVNAME(sc->sc_dev)));
    651       1.28  augustss 
    652       1.28  augustss 	/* Abort the pipes to wake up any waiting processes. */
    653       1.73   gehenna 	for (i = 0 ; i < UMASS_NEP ; i++) {
    654      1.117   nathanw 		if (sc->sc_pipe[i] != NULL)
    655       1.73   gehenna 			usbd_abort_pipe(sc->sc_pipe[i]);
    656       1.73   gehenna 	}
    657       1.28  augustss 
    658       1.42  augustss 	/* Do we really need reference counting?  Perhaps in ioctl() */
    659       1.28  augustss 	s = splusb();
    660       1.28  augustss 	if (--sc->sc_refcnt >= 0) {
    661       1.95  augustss #ifdef DIAGNOSTIC
    662       1.95  augustss 		printf("%s: waiting for refcnt\n", USBDEVNAME(sc->sc_dev));
    663       1.95  augustss #endif
    664       1.28  augustss 		/* Wait for processes to go away. */
    665       1.28  augustss 		usb_detach_wait(USBDEV(sc->sc_dev));
    666       1.28  augustss 	}
    667       1.28  augustss 	splx(s);
    668       1.28  augustss 
    669      1.105  augustss 	scbus = sc->bus;
    670       1.79  augustss 	if (scbus != NULL) {
    671       1.79  augustss 		if (scbus->sc_child != NULL)
    672       1.79  augustss 			rv = config_detach(scbus->sc_child, flags);
    673       1.79  augustss 		free(scbus, M_DEVBUF);
    674       1.79  augustss 		sc->bus = NULL;
    675       1.79  augustss 	}
    676       1.56  augustss 
    677       1.28  augustss 	if (rv != 0)
    678       1.28  augustss 		return (rv);
    679       1.28  augustss 
    680       1.28  augustss 	umass_disco(sc);
    681       1.28  augustss 
    682       1.28  augustss 	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
    683       1.28  augustss 			   USBDEV(sc->sc_dev));
    684       1.28  augustss 
    685       1.79  augustss 	return (rv);
    686       1.79  augustss }
    687       1.79  augustss 
    688       1.79  augustss int
    689       1.79  augustss umass_activate(struct device *dev, enum devact act)
    690       1.79  augustss {
    691       1.79  augustss 	struct umass_softc *sc = (struct umass_softc *)dev;
    692       1.79  augustss 	struct umassbus_softc *scbus = sc->bus;
    693       1.79  augustss 	int rv = 0;
    694       1.79  augustss 
    695       1.79  augustss 	DPRINTF(UDMASS_USB, ("%s: umass_activate: %d\n",
    696       1.79  augustss 	    USBDEVNAME(sc->sc_dev), act));
    697       1.79  augustss 
    698       1.79  augustss 	switch (act) {
    699       1.79  augustss 	case DVACT_ACTIVATE:
    700       1.79  augustss 		rv = EOPNOTSUPP;
    701       1.79  augustss 		break;
    702       1.79  augustss 
    703       1.79  augustss 	case DVACT_DEACTIVATE:
    704       1.79  augustss 		sc->sc_dying = 1;
    705       1.84  augustss 		if (scbus == NULL || scbus->sc_child == NULL)
    706       1.79  augustss 			break;
    707       1.79  augustss 		rv = config_deactivate(scbus->sc_child);
    708       1.79  augustss 		DPRINTF(UDMASS_USB, ("%s: umass_activate: child "
    709       1.79  augustss 		    "returned %d\n", USBDEVNAME(sc->sc_dev), rv));
    710       1.79  augustss 		break;
    711       1.79  augustss 	}
    712       1.79  augustss 	return (rv);
    713       1.28  augustss }
    714       1.28  augustss 
    715       1.28  augustss Static void
    716       1.38  augustss umass_disco(struct umass_softc *sc)
    717       1.88  augustss {
    718       1.28  augustss 	int i;
    719       1.28  augustss 
    720       1.28  augustss 	DPRINTF(UDMASS_GEN, ("umass_disco\n"));
    721       1.28  augustss 
    722       1.28  augustss 	/* Free the xfers. */
    723       1.28  augustss 	for (i = 0; i < XFER_NR; i++)
    724       1.28  augustss 		if (sc->transfer_xfer[i] != NULL) {
    725       1.28  augustss 			usbd_free_xfer(sc->transfer_xfer[i]);
    726       1.28  augustss 			sc->transfer_xfer[i] = NULL;
    727       1.28  augustss 		}
    728       1.28  augustss 
    729       1.28  augustss 	/* Remove all the pipes. */
    730       1.73   gehenna 	for (i = 0 ; i < UMASS_NEP ; i++) {
    731       1.93    toshii 		if (sc->sc_pipe[i] != NULL) {
    732       1.73   gehenna 			usbd_close_pipe(sc->sc_pipe[i]);
    733       1.93    toshii 			sc->sc_pipe[i] = NULL;
    734       1.93    toshii 		}
    735       1.73   gehenna 	}
    736       1.28  augustss }
    737        1.1   thorpej 
    738       1.28  augustss /*
    739       1.28  augustss  * Generic functions to handle transfers
    740       1.28  augustss  */
    741        1.9   thorpej 
    742       1.28  augustss Static usbd_status
    743       1.28  augustss umass_setup_transfer(struct umass_softc *sc, usbd_pipe_handle pipe,
    744       1.28  augustss 			void *buffer, int buflen, int flags,
    745       1.28  augustss 			usbd_xfer_handle xfer)
    746       1.28  augustss {
    747       1.28  augustss 	usbd_status err;
    748        1.9   thorpej 
    749       1.28  augustss 	if (sc->sc_dying)
    750       1.28  augustss 		return (USBD_IOERROR);
    751       1.18  augustss 
    752       1.28  augustss 	/* Initialiase a USB transfer and then schedule it */
    753       1.18  augustss 
    754       1.28  augustss 	usbd_setup_xfer(xfer, pipe, (void *)sc, buffer, buflen,
    755       1.75   gehenna 	    flags | sc->sc_xfer_flags, sc->timeout, sc->sc_methods->wire_state);
    756       1.18  augustss 
    757       1.28  augustss 	err = usbd_transfer(xfer);
    758       1.28  augustss 	DPRINTF(UDMASS_XFER,("%s: start xfer buffer=%p buflen=%d flags=0x%x "
    759       1.28  augustss 	    "timeout=%d\n", USBDEVNAME(sc->sc_dev),
    760       1.28  augustss 	    buffer, buflen, flags | sc->sc_xfer_flags, sc->timeout));
    761       1.28  augustss 	if (err && err != USBD_IN_PROGRESS) {
    762       1.28  augustss 		DPRINTF(UDMASS_BBB, ("%s: failed to setup transfer, %s\n",
    763       1.28  augustss 			USBDEVNAME(sc->sc_dev), usbd_errstr(err)));
    764       1.28  augustss 		return (err);
    765        1.9   thorpej 	}
    766       1.24  augustss 
    767       1.28  augustss 	return (USBD_NORMAL_COMPLETION);
    768        1.1   thorpej }
    769        1.1   thorpej 
    770        1.1   thorpej 
    771       1.28  augustss Static usbd_status
    772       1.74   gehenna umass_setup_ctrl_transfer(struct umass_softc *sc, usb_device_request_t *req,
    773       1.74   gehenna 	 void *buffer, int buflen, int flags, usbd_xfer_handle xfer)
    774        1.1   thorpej {
    775        1.1   thorpej 	usbd_status err;
    776        1.1   thorpej 
    777       1.28  augustss 	if (sc->sc_dying)
    778       1.28  augustss 		return (USBD_IOERROR);
    779        1.1   thorpej 
    780       1.28  augustss 	/* Initialiase a USB control transfer and then schedule it */
    781        1.1   thorpej 
    782       1.75   gehenna 	usbd_setup_default_xfer(xfer, sc->sc_udev, (void *) sc, sc->timeout,
    783       1.75   gehenna 		req, buffer, buflen, flags, sc->sc_methods->wire_state);
    784        1.1   thorpej 
    785       1.28  augustss 	err = usbd_transfer(xfer);
    786       1.28  augustss 	if (err && err != USBD_IN_PROGRESS) {
    787       1.28  augustss 		DPRINTF(UDMASS_BBB, ("%s: failed to setup ctrl transfer, %s\n",
    788       1.28  augustss 			 USBDEVNAME(sc->sc_dev), usbd_errstr(err)));
    789        1.1   thorpej 
    790       1.28  augustss 		/* do not reset, as this would make us loop */
    791       1.28  augustss 		return (err);
    792       1.28  augustss 	}
    793        1.1   thorpej 
    794       1.28  augustss 	return (USBD_NORMAL_COMPLETION);
    795        1.1   thorpej }
    796        1.1   thorpej 
    797       1.28  augustss Static void
    798       1.73   gehenna umass_clear_endpoint_stall(struct umass_softc *sc, int endpt,
    799       1.73   gehenna 	usbd_xfer_handle xfer)
    800        1.7   thorpej {
    801       1.28  augustss 	if (sc->sc_dying)
    802       1.28  augustss 		return;
    803        1.1   thorpej 
    804       1.28  augustss 	DPRINTF(UDMASS_BBB, ("%s: Clear endpoint 0x%02x stall\n",
    805       1.85  augustss 		USBDEVNAME(sc->sc_dev), sc->sc_epaddr[endpt]));
    806        1.7   thorpej 
    807       1.73   gehenna 	usbd_clear_endpoint_toggle(sc->sc_pipe[endpt]);
    808        1.7   thorpej 
    809       1.78   gehenna 	sc->sc_req.bmRequestType = UT_WRITE_ENDPOINT;
    810       1.78   gehenna 	sc->sc_req.bRequest = UR_CLEAR_FEATURE;
    811       1.78   gehenna 	USETW(sc->sc_req.wValue, UF_ENDPOINT_HALT);
    812       1.78   gehenna 	USETW(sc->sc_req.wIndex, sc->sc_epaddr[endpt]);
    813       1.78   gehenna 	USETW(sc->sc_req.wLength, 0);
    814       1.78   gehenna 	umass_setup_ctrl_transfer(sc, &sc->sc_req, NULL, 0, 0, xfer);
    815       1.28  augustss }
    816       1.15   thorpej 
    817       1.29     enami #if 0
    818       1.28  augustss Static void
    819       1.28  augustss umass_reset(struct umass_softc *sc, transfer_cb_f cb, void *priv)
    820       1.28  augustss {
    821       1.28  augustss 	sc->transfer_cb = cb;
    822       1.28  augustss 	sc->transfer_priv = priv;
    823        1.1   thorpej 
    824       1.28  augustss 	/* The reset is a forced reset, so no error (yet) */
    825       1.28  augustss 	sc->reset(sc, STATUS_CMD_OK);
    826        1.7   thorpej }
    827       1.29     enami #endif
    828        1.1   thorpej 
    829       1.28  augustss /*
    830       1.28  augustss  * Bulk protocol specific functions
    831       1.28  augustss  */
    832       1.28  augustss 
    833       1.28  augustss Static void
    834       1.28  augustss umass_bbb_reset(struct umass_softc *sc, int status)
    835        1.1   thorpej {
    836       1.78   gehenna 	KASSERT(sc->sc_wire & UMASS_WPROTO_BBB,
    837       1.78   gehenna 		("sc->sc_wire == 0x%02x wrong for umass_bbb_reset\n",
    838       1.78   gehenna 		sc->sc_wire));
    839       1.28  augustss 
    840       1.28  augustss 	if (sc->sc_dying)
    841       1.28  augustss 		return;
    842        1.1   thorpej 
    843        1.1   thorpej 	/*
    844        1.1   thorpej 	 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class)
    845        1.1   thorpej 	 *
    846        1.1   thorpej 	 * For Reset Recovery the host shall issue in the following order:
    847        1.1   thorpej 	 * a) a Bulk-Only Mass Storage Reset
    848        1.1   thorpej 	 * b) a Clear Feature HALT to the Bulk-In endpoint
    849        1.1   thorpej 	 * c) a Clear Feature HALT to the Bulk-Out endpoint
    850       1.28  augustss 	 *
    851       1.28  augustss 	 * This is done in 3 steps, states:
    852       1.28  augustss 	 * TSTATE_BBB_RESET1
    853       1.28  augustss 	 * TSTATE_BBB_RESET2
    854       1.28  augustss 	 * TSTATE_BBB_RESET3
    855       1.28  augustss 	 *
    856       1.28  augustss 	 * If the reset doesn't succeed, the device should be port reset.
    857        1.1   thorpej 	 */
    858        1.1   thorpej 
    859       1.28  augustss 	DPRINTF(UDMASS_BBB, ("%s: Bulk Reset\n",
    860        1.1   thorpej 		USBDEVNAME(sc->sc_dev)));
    861       1.88  augustss 
    862       1.28  augustss 	sc->transfer_state = TSTATE_BBB_RESET1;
    863       1.28  augustss 	sc->transfer_status = status;
    864        1.1   thorpej 
    865       1.28  augustss 	/* reset is a class specific interface write */
    866       1.78   gehenna 	sc->sc_req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
    867       1.78   gehenna 	sc->sc_req.bRequest = UR_BBB_RESET;
    868       1.78   gehenna 	USETW(sc->sc_req.wValue, 0);
    869       1.78   gehenna 	USETW(sc->sc_req.wIndex, sc->sc_ifaceno);
    870       1.78   gehenna 	USETW(sc->sc_req.wLength, 0);
    871       1.78   gehenna 	umass_setup_ctrl_transfer(sc, &sc->sc_req, NULL, 0, 0,
    872       1.28  augustss 				  sc->transfer_xfer[XFER_BBB_RESET1]);
    873       1.28  augustss }
    874       1.28  augustss 
    875       1.28  augustss Static void
    876       1.28  augustss umass_bbb_transfer(struct umass_softc *sc, int lun, void *cmd, int cmdlen,
    877       1.67  augustss 		   void *data, int datalen, int dir, u_int timeout,
    878       1.75   gehenna 		   umass_callback cb, void *priv)
    879       1.28  augustss {
    880       1.28  augustss 	static int dCBWtag = 42;	/* unique for CBW of transfer */
    881        1.1   thorpej 
    882       1.28  augustss 	DPRINTF(UDMASS_BBB,("%s: umass_bbb_transfer cmd=0x%02x\n",
    883       1.87  augustss 		USBDEVNAME(sc->sc_dev), *(u_char *)cmd));
    884        1.1   thorpej 
    885       1.78   gehenna 	KASSERT(sc->sc_wire & UMASS_WPROTO_BBB,
    886       1.78   gehenna 		("sc->sc_wire == 0x%02x wrong for umass_bbb_transfer\n",
    887       1.78   gehenna 		sc->sc_wire));
    888        1.1   thorpej 
    889      1.116   mycroft 	if (sc->sc_dying)
    890      1.116   mycroft 		return;
    891      1.116   mycroft 
    892       1.67  augustss 	/* Be a little generous. */
    893       1.67  augustss 	sc->timeout = timeout + USBD_DEFAULT_TIMEOUT;
    894       1.67  augustss 
    895        1.1   thorpej 	/*
    896       1.28  augustss 	 * Do a Bulk-Only transfer with cmdlen bytes from cmd, possibly
    897       1.28  augustss 	 * a data phase of datalen bytes from/to the device and finally a
    898       1.28  augustss 	 * csw read phase.
    899       1.28  augustss 	 * If the data direction was inbound a maximum of datalen bytes
    900       1.28  augustss 	 * is stored in the buffer pointed to by data.
    901       1.28  augustss 	 *
    902       1.28  augustss 	 * umass_bbb_transfer initialises the transfer and lets the state
    903       1.88  augustss 	 * machine in umass_bbb_state handle the completion. It uses the
    904       1.28  augustss 	 * following states:
    905       1.28  augustss 	 * TSTATE_BBB_COMMAND
    906       1.28  augustss 	 *   -> TSTATE_BBB_DATA
    907       1.28  augustss 	 *   -> TSTATE_BBB_STATUS
    908       1.28  augustss 	 *   -> TSTATE_BBB_STATUS2
    909       1.28  augustss 	 *   -> TSTATE_BBB_IDLE
    910       1.28  augustss 	 *
    911       1.28  augustss 	 * An error in any of those states will invoke
    912       1.28  augustss 	 * umass_bbb_reset.
    913        1.1   thorpej 	 */
    914        1.1   thorpej 
    915        1.1   thorpej 	/* check the given arguments */
    916       1.28  augustss 	KASSERT(datalen == 0 || data != NULL,
    917       1.28  augustss 		("%s: datalen > 0, but no buffer",USBDEVNAME(sc->sc_dev)));
    918       1.28  augustss 	KASSERT(cmdlen <= CBWCDBLENGTH,
    919       1.28  augustss 		("%s: cmdlen exceeds CDB length in CBW (%d > %d)",
    920       1.28  augustss 			USBDEVNAME(sc->sc_dev), cmdlen, CBWCDBLENGTH));
    921       1.28  augustss 	KASSERT(dir == DIR_NONE || datalen > 0,
    922       1.28  augustss 		("%s: datalen == 0 while direction is not NONE\n",
    923        1.1   thorpej 			USBDEVNAME(sc->sc_dev)));
    924       1.28  augustss 	KASSERT(datalen == 0 || dir != DIR_NONE,
    925       1.28  augustss 		("%s: direction is NONE while datalen is not zero\n",
    926       1.28  augustss 			USBDEVNAME(sc->sc_dev)));
    927       1.28  augustss 	KASSERT(sizeof(umass_bbb_cbw_t) == UMASS_BBB_CBW_SIZE,
    928       1.28  augustss 		("%s: CBW struct does not have the right size (%d vs. %d)\n",
    929       1.28  augustss 			USBDEVNAME(sc->sc_dev),
    930       1.28  augustss 			sizeof(umass_bbb_cbw_t), UMASS_BBB_CBW_SIZE));
    931       1.28  augustss 	KASSERT(sizeof(umass_bbb_csw_t) == UMASS_BBB_CSW_SIZE,
    932       1.28  augustss 		("%s: CSW struct does not have the right size (%d vs. %d)\n",
    933       1.28  augustss 			USBDEVNAME(sc->sc_dev),
    934       1.28  augustss 			sizeof(umass_bbb_csw_t), UMASS_BBB_CSW_SIZE));
    935        1.1   thorpej 
    936        1.1   thorpej 	/*
    937       1.28  augustss 	 * Determine the direction of the data transfer and the length.
    938        1.1   thorpej 	 *
    939        1.1   thorpej 	 * dCBWDataTransferLength (datalen) :
    940        1.1   thorpej 	 *   This field indicates the number of bytes of data that the host
    941        1.1   thorpej 	 *   intends to transfer on the IN or OUT Bulk endpoint(as indicated by
    942        1.1   thorpej 	 *   the Direction bit) during the execution of this command. If this
    943        1.1   thorpej 	 *   field is set to 0, the device will expect that no data will be
    944        1.1   thorpej 	 *   transferred IN or OUT during this command, regardless of the value
    945        1.1   thorpej 	 *   of the Direction bit defined in dCBWFlags.
    946        1.1   thorpej 	 *
    947        1.1   thorpej 	 * dCBWFlags (dir) :
    948        1.1   thorpej 	 *   The bits of the Flags field are defined as follows:
    949       1.28  augustss 	 *     Bits 0-6	 reserved
    950       1.28  augustss 	 *     Bit  7	 Direction - this bit shall be ignored if the
    951       1.28  augustss 	 *			     dCBWDataTransferLength field is zero.
    952       1.28  augustss 	 *		 0 = data Out from host to device
    953       1.28  augustss 	 *		 1 = data In from device to host
    954        1.1   thorpej 	 */
    955        1.1   thorpej 
    956       1.28  augustss 	/* Fill in the Command Block Wrapper */
    957       1.28  augustss 	USETDW(sc->cbw.dCBWSignature, CBWSIGNATURE);
    958       1.28  augustss 	USETDW(sc->cbw.dCBWTag, dCBWtag);
    959       1.28  augustss 	dCBWtag++;	/* cannot be done in macro (it will be done 4 times) */
    960       1.28  augustss 	USETDW(sc->cbw.dCBWDataTransferLength, datalen);
    961       1.28  augustss 	/* DIR_NONE is treated as DIR_OUT (0x00) */
    962       1.28  augustss 	sc->cbw.bCBWFlags = (dir == DIR_IN? CBWFLAGS_IN:CBWFLAGS_OUT);
    963       1.28  augustss 	sc->cbw.bCBWLUN = lun;
    964       1.28  augustss 	sc->cbw.bCDBLength = cmdlen;
    965       1.69   gehenna 	memcpy(sc->cbw.CBWCDB, cmd, cmdlen);
    966       1.28  augustss 
    967       1.28  augustss 	DIF(UDMASS_BBB, umass_bbb_dump_cbw(sc, &sc->cbw));
    968       1.28  augustss 
    969       1.28  augustss 	/* store the details for the data transfer phase */
    970       1.28  augustss 	sc->transfer_dir = dir;
    971       1.28  augustss 	sc->transfer_data = data;
    972       1.28  augustss 	sc->transfer_datalen = datalen;
    973       1.28  augustss 	sc->transfer_actlen = 0;
    974       1.28  augustss 	sc->transfer_cb = cb;
    975       1.28  augustss 	sc->transfer_priv = priv;
    976       1.28  augustss 	sc->transfer_status = STATUS_CMD_OK;
    977        1.1   thorpej 
    978       1.28  augustss 	/* move from idle to the command state */
    979       1.28  augustss 	sc->transfer_state = TSTATE_BBB_COMMAND;
    980        1.1   thorpej 
    981        1.1   thorpej 	/* Send the CBW from host to device via bulk-out endpoint. */
    982       1.73   gehenna 	if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKOUT],
    983       1.28  augustss 			&sc->cbw, UMASS_BBB_CBW_SIZE, 0,
    984       1.28  augustss 			sc->transfer_xfer[XFER_BBB_CBW])) {
    985       1.28  augustss 		umass_bbb_reset(sc, STATUS_WIRE_FAILED);
    986        1.1   thorpej 	}
    987       1.28  augustss }
    988       1.28  augustss 
    989        1.1   thorpej 
    990       1.28  augustss Static void
    991       1.28  augustss umass_bbb_state(usbd_xfer_handle xfer, usbd_private_handle priv,
    992       1.28  augustss 		usbd_status err)
    993       1.28  augustss {
    994       1.28  augustss 	struct umass_softc *sc = (struct umass_softc *) priv;
    995       1.28  augustss 	usbd_xfer_handle next_xfer;
    996       1.28  augustss 
    997       1.78   gehenna 	KASSERT(sc->sc_wire & UMASS_WPROTO_BBB,
    998       1.78   gehenna 		("sc->sc_wire == 0x%02x wrong for umass_bbb_state\n",
    999       1.78   gehenna 		sc->sc_wire));
   1000       1.28  augustss 
   1001       1.28  augustss 	if (sc->sc_dying)
   1002       1.28  augustss 		return;
   1003        1.1   thorpej 
   1004        1.1   thorpej 	/*
   1005       1.28  augustss 	 * State handling for BBB transfers.
   1006       1.28  augustss 	 *
   1007       1.28  augustss 	 * The subroutine is rather long. It steps through the states given in
   1008       1.28  augustss 	 * Annex A of the Bulk-Only specification.
   1009       1.28  augustss 	 * Each state first does the error handling of the previous transfer
   1010       1.28  augustss 	 * and then prepares the next transfer.
   1011       1.28  augustss 	 * Each transfer is done asynchroneously so after the request/transfer
   1012       1.28  augustss 	 * has been submitted you will find a 'return;'.
   1013        1.1   thorpej 	 */
   1014        1.1   thorpej 
   1015       1.28  augustss 	DPRINTF(UDMASS_BBB, ("%s: Handling BBB state %d (%s), xfer=%p, %s\n",
   1016       1.28  augustss 		USBDEVNAME(sc->sc_dev), sc->transfer_state,
   1017       1.28  augustss 		states[sc->transfer_state], xfer, usbd_errstr(err)));
   1018       1.28  augustss 
   1019       1.28  augustss 	switch (sc->transfer_state) {
   1020       1.28  augustss 
   1021       1.28  augustss 	/***** Bulk Transfer *****/
   1022       1.28  augustss 	case TSTATE_BBB_COMMAND:
   1023       1.28  augustss 		/* Command transport phase, error handling */
   1024       1.28  augustss 		if (err) {
   1025       1.28  augustss 			DPRINTF(UDMASS_BBB, ("%s: failed to send CBW\n",
   1026       1.28  augustss 				USBDEVNAME(sc->sc_dev)));
   1027       1.28  augustss 			/* If the device detects that the CBW is invalid, then
   1028       1.28  augustss 			 * the device may STALL both bulk endpoints and require
   1029       1.28  augustss 			 * a Bulk-Reset
   1030       1.28  augustss 			 */
   1031       1.28  augustss 			umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1032       1.28  augustss 			return;
   1033       1.28  augustss 		}
   1034       1.28  augustss 
   1035       1.28  augustss 		/* Data transport phase, setup transfer */
   1036       1.28  augustss 		sc->transfer_state = TSTATE_BBB_DATA;
   1037       1.28  augustss 		if (sc->transfer_dir == DIR_IN) {
   1038       1.73   gehenna 			if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKIN],
   1039       1.28  augustss 					sc->data_buffer, sc->transfer_datalen,
   1040       1.28  augustss 					USBD_SHORT_XFER_OK | USBD_NO_COPY,
   1041       1.28  augustss 					sc->transfer_xfer[XFER_BBB_DATA]))
   1042       1.28  augustss 				umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1043       1.28  augustss 
   1044       1.28  augustss 			return;
   1045       1.28  augustss 		} else if (sc->transfer_dir == DIR_OUT) {
   1046       1.88  augustss 			memcpy(sc->data_buffer, sc->transfer_data,
   1047       1.28  augustss 			       sc->transfer_datalen);
   1048       1.73   gehenna 			if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKOUT],
   1049       1.28  augustss 					sc->data_buffer, sc->transfer_datalen,
   1050       1.28  augustss 					USBD_NO_COPY,/* fixed length transfer */
   1051       1.28  augustss 					sc->transfer_xfer[XFER_BBB_DATA]))
   1052       1.28  augustss 				umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1053        1.1   thorpej 
   1054       1.28  augustss 			return;
   1055       1.28  augustss 		} else {
   1056       1.28  augustss 			DPRINTF(UDMASS_BBB, ("%s: no data phase\n",
   1057       1.28  augustss 				USBDEVNAME(sc->sc_dev)));
   1058       1.28  augustss 		}
   1059        1.1   thorpej 
   1060       1.28  augustss 		/* FALLTHROUGH if no data phase, err == 0 */
   1061       1.28  augustss 	case TSTATE_BBB_DATA:
   1062      1.103   mycroft 		/* Command transport phase error handling (ignored if no data
   1063       1.28  augustss 		 * phase (fallthrough from previous state)) */
   1064       1.28  augustss 		if (sc->transfer_dir != DIR_NONE) {
   1065       1.28  augustss 			/* retrieve the length of the transfer that was done */
   1066       1.28  augustss 			usbd_get_xfer_status(xfer, NULL, NULL,
   1067      1.103   mycroft 			     &sc->transfer_actlen, NULL);
   1068      1.103   mycroft 			DPRINTF(UDMASS_BBB, ("%s: BBB_DATA actlen=%d\n",
   1069      1.103   mycroft 				USBDEVNAME(sc->sc_dev), sc->transfer_actlen));
   1070       1.28  augustss 
   1071       1.28  augustss 			if (err) {
   1072       1.65  augustss 				DPRINTF(UDMASS_BBB, ("%s: Data-%s %d failed, "
   1073       1.28  augustss 					"%s\n", USBDEVNAME(sc->sc_dev),
   1074       1.28  augustss 					(sc->transfer_dir == DIR_IN?"in":"out"),
   1075       1.28  augustss 					sc->transfer_datalen,usbd_errstr(err)));
   1076       1.28  augustss 
   1077       1.28  augustss 				if (err == USBD_STALLED) {
   1078       1.70   gehenna 					sc->transfer_state = TSTATE_BBB_DCLEAR;
   1079       1.28  augustss 					umass_clear_endpoint_stall(sc,
   1080       1.28  augustss 					  (sc->transfer_dir == DIR_IN?
   1081       1.73   gehenna 					    UMASS_BULKIN:UMASS_BULKOUT),
   1082       1.28  augustss 					  sc->transfer_xfer[XFER_BBB_DCLEAR]);
   1083       1.28  augustss 				} else {
   1084       1.28  augustss 					/* Unless the error is a pipe stall the
   1085       1.28  augustss 					 * error is fatal.
   1086       1.28  augustss 					 */
   1087       1.28  augustss 					umass_bbb_reset(sc,STATUS_WIRE_FAILED);
   1088       1.28  augustss 				}
   1089      1.103   mycroft 				return;
   1090       1.28  augustss 			}
   1091       1.28  augustss 		}
   1092        1.1   thorpej 
   1093      1.101   mycroft 		/* FALLTHROUGH, err == 0 (no data phase or successful) */
   1094      1.101   mycroft 	case TSTATE_BBB_DCLEAR: /* stall clear after data phase */
   1095       1.28  augustss 		if (sc->transfer_dir == DIR_IN)
   1096       1.28  augustss 			memcpy(sc->transfer_data, sc->data_buffer,
   1097       1.28  augustss 			       sc->transfer_actlen);
   1098       1.28  augustss 
   1099       1.28  augustss 		DIF(UDMASS_BBB, if (sc->transfer_dir == DIR_IN)
   1100       1.28  augustss 					umass_dump_buffer(sc, sc->transfer_data,
   1101       1.28  augustss 						sc->transfer_datalen, 48));
   1102       1.28  augustss 
   1103       1.94       wiz 		/* FALLTHROUGH, err == 0 (no data phase or successful) */
   1104       1.28  augustss 	case TSTATE_BBB_SCLEAR: /* stall clear after status phase */
   1105       1.28  augustss 		/* Reading of CSW after bulk stall condition in data phase
   1106       1.28  augustss 		 * (TSTATE_BBB_DATA2) or bulk-in stall condition after
   1107       1.28  augustss 		 * reading CSW (TSTATE_BBB_SCLEAR).
   1108       1.94       wiz 		 * In the case of no data phase or successful data phase,
   1109       1.28  augustss 		 * err == 0 and the following if block is passed.
   1110       1.28  augustss 		 */
   1111       1.28  augustss 		if (err) {	/* should not occur */
   1112      1.103   mycroft 			printf("%s: BBB bulk-%s stall clear failed, %s\n",
   1113      1.103   mycroft 			    USBDEVNAME(sc->sc_dev),
   1114      1.103   mycroft 			    (sc->transfer_dir == DIR_IN? "in":"out"),
   1115      1.103   mycroft 			    usbd_errstr(err));
   1116       1.28  augustss 			umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1117       1.28  augustss 			return;
   1118       1.28  augustss 		}
   1119       1.88  augustss 
   1120       1.28  augustss 		/* Status transport phase, setup transfer */
   1121       1.28  augustss 		if (sc->transfer_state == TSTATE_BBB_COMMAND ||
   1122       1.28  augustss 		    sc->transfer_state == TSTATE_BBB_DATA ||
   1123       1.28  augustss 		    sc->transfer_state == TSTATE_BBB_DCLEAR) {
   1124       1.94       wiz 			/* After no data phase, successful data phase and
   1125       1.28  augustss 			 * after clearing bulk-in/-out stall condition
   1126       1.28  augustss 			 */
   1127       1.28  augustss 			sc->transfer_state = TSTATE_BBB_STATUS1;
   1128       1.28  augustss 			next_xfer = sc->transfer_xfer[XFER_BBB_CSW1];
   1129       1.28  augustss 		} else {
   1130       1.28  augustss 			/* After first attempt of fetching CSW */
   1131       1.28  augustss 			sc->transfer_state = TSTATE_BBB_STATUS2;
   1132       1.28  augustss 			next_xfer = sc->transfer_xfer[XFER_BBB_CSW2];
   1133        1.1   thorpej 		}
   1134        1.1   thorpej 
   1135       1.28  augustss 		/* Read the Command Status Wrapper via bulk-in endpoint. */
   1136       1.73   gehenna 		if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKIN],
   1137       1.73   gehenna 			&sc->csw, UMASS_BBB_CSW_SIZE, 0, next_xfer)) {
   1138       1.28  augustss 			umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1139       1.28  augustss 			return;
   1140       1.28  augustss 		}
   1141        1.1   thorpej 
   1142       1.28  augustss 		return;
   1143       1.28  augustss 	case TSTATE_BBB_STATUS1:	/* first attempt */
   1144       1.28  augustss 	case TSTATE_BBB_STATUS2:	/* second attempt */
   1145       1.28  augustss 		/* Status transfer, error handling */
   1146        1.1   thorpej 		if (err) {
   1147       1.28  augustss 			DPRINTF(UDMASS_BBB, ("%s: Failed to read CSW, %s%s\n",
   1148       1.28  augustss 				USBDEVNAME(sc->sc_dev), usbd_errstr(err),
   1149       1.28  augustss 				(sc->transfer_state == TSTATE_BBB_STATUS1?
   1150       1.28  augustss 					", retrying":"")));
   1151       1.28  augustss 
   1152       1.28  augustss 			/* If this was the first attempt at fetching the CSW
   1153       1.28  augustss 			 * retry it, otherwise fail.
   1154       1.28  augustss 			 */
   1155       1.28  augustss 			if (sc->transfer_state == TSTATE_BBB_STATUS1) {
   1156       1.70   gehenna 				sc->transfer_state = TSTATE_BBB_SCLEAR;
   1157       1.73   gehenna 				umass_clear_endpoint_stall(sc, UMASS_BULKIN,
   1158       1.66  augustss 				    sc->transfer_xfer[XFER_BBB_SCLEAR]);
   1159       1.28  augustss 				return;
   1160       1.28  augustss 			} else {
   1161       1.28  augustss 				umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1162       1.28  augustss 				return;
   1163       1.28  augustss 			}
   1164       1.28  augustss 		}
   1165       1.28  augustss 
   1166       1.28  augustss 		DIF(UDMASS_BBB, umass_bbb_dump_csw(sc, &sc->csw));
   1167       1.68  augustss 
   1168       1.68  augustss 		/* Translate weird command-status signatures. */
   1169       1.78   gehenna 		if ((sc->sc_quirks & UMASS_QUIRK_WRONG_CSWSIG) &&
   1170       1.68  augustss 		    UGETDW(sc->csw.dCSWSignature) == CSWSIGNATURE_OLYMPUS_C1)
   1171       1.68  augustss 			USETDW(sc->csw.dCSWSignature, CSWSIGNATURE);
   1172       1.91       erh 
   1173       1.91       erh 		/* Translate invalid command-status tags */
   1174       1.91       erh 		if (sc->sc_quirks & UMASS_QUIRK_WRONG_CSWTAG)
   1175       1.91       erh 			USETDW(sc->csw.dCSWTag, UGETDW(sc->cbw.dCBWTag));
   1176       1.28  augustss 
   1177       1.28  augustss 		/* Check CSW and handle any error */
   1178       1.28  augustss 		if (UGETDW(sc->csw.dCSWSignature) != CSWSIGNATURE) {
   1179       1.28  augustss 			/* Invalid CSW: Wrong signature or wrong tag might
   1180       1.28  augustss 			 * indicate that the device is confused -> reset it.
   1181       1.28  augustss 			 */
   1182       1.28  augustss 			printf("%s: Invalid CSW: sig 0x%08x should be 0x%08x\n",
   1183       1.28  augustss 				USBDEVNAME(sc->sc_dev),
   1184       1.28  augustss 				UGETDW(sc->csw.dCSWSignature),
   1185       1.28  augustss 				CSWSIGNATURE);
   1186       1.28  augustss 
   1187       1.28  augustss 			umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1188       1.28  augustss 			return;
   1189       1.28  augustss 		} else if (UGETDW(sc->csw.dCSWTag)
   1190       1.28  augustss 				!= UGETDW(sc->cbw.dCBWTag)) {
   1191       1.28  augustss 			printf("%s: Invalid CSW: tag %d should be %d\n",
   1192       1.28  augustss 				USBDEVNAME(sc->sc_dev),
   1193       1.28  augustss 				UGETDW(sc->csw.dCSWTag),
   1194       1.28  augustss 				UGETDW(sc->cbw.dCBWTag));
   1195       1.28  augustss 
   1196       1.28  augustss 			umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1197       1.28  augustss 			return;
   1198       1.28  augustss 
   1199       1.28  augustss 		/* CSW is valid here */
   1200       1.28  augustss 		} else if (sc->csw.bCSWStatus > CSWSTATUS_PHASE) {
   1201       1.28  augustss 			printf("%s: Invalid CSW: status %d > %d\n",
   1202       1.28  augustss 				USBDEVNAME(sc->sc_dev),
   1203       1.28  augustss 				sc->csw.bCSWStatus,
   1204       1.28  augustss 				CSWSTATUS_PHASE);
   1205       1.28  augustss 
   1206       1.28  augustss 			umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1207       1.28  augustss 			return;
   1208       1.28  augustss 		} else if (sc->csw.bCSWStatus == CSWSTATUS_PHASE) {
   1209       1.28  augustss 			printf("%s: Phase Error, residue = %d\n",
   1210       1.28  augustss 				USBDEVNAME(sc->sc_dev),
   1211       1.28  augustss 				UGETDW(sc->csw.dCSWDataResidue));
   1212       1.88  augustss 
   1213       1.28  augustss 			umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1214       1.28  augustss 			return;
   1215       1.28  augustss 
   1216       1.28  augustss 		} else if (sc->transfer_actlen > sc->transfer_datalen) {
   1217       1.28  augustss 			/* Buffer overrun! Don't let this go by unnoticed */
   1218       1.89    provos 			panic("%s: transferred %d bytes instead of %d bytes",
   1219       1.28  augustss 				USBDEVNAME(sc->sc_dev),
   1220       1.28  augustss 				sc->transfer_actlen, sc->transfer_datalen);
   1221       1.62  augustss #if 0
   1222       1.28  augustss 		} else if (sc->transfer_datalen - sc->transfer_actlen
   1223       1.28  augustss 			   != UGETDW(sc->csw.dCSWDataResidue)) {
   1224       1.28  augustss 			DPRINTF(UDMASS_BBB, ("%s: actlen=%d != residue=%d\n",
   1225        1.1   thorpej 				USBDEVNAME(sc->sc_dev),
   1226       1.28  augustss 				sc->transfer_datalen - sc->transfer_actlen,
   1227       1.28  augustss 				UGETDW(sc->csw.dCSWDataResidue)));
   1228       1.28  augustss 
   1229       1.28  augustss 			umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1230       1.28  augustss 			return;
   1231       1.62  augustss #endif
   1232       1.28  augustss 		} else if (sc->csw.bCSWStatus == CSWSTATUS_FAILED) {
   1233       1.28  augustss 			DPRINTF(UDMASS_BBB, ("%s: Command Failed, res = %d\n",
   1234        1.1   thorpej 				USBDEVNAME(sc->sc_dev),
   1235       1.28  augustss 				UGETDW(sc->csw.dCSWDataResidue)));
   1236       1.28  augustss 
   1237       1.28  augustss 			/* SCSI command failed but transfer was succesful */
   1238       1.28  augustss 			sc->transfer_state = TSTATE_IDLE;
   1239       1.28  augustss 			sc->transfer_cb(sc, sc->transfer_priv,
   1240       1.28  augustss 					UGETDW(sc->csw.dCSWDataResidue),
   1241       1.28  augustss 					STATUS_CMD_FAILED);
   1242       1.28  augustss 
   1243       1.28  augustss 			return;
   1244       1.28  augustss 
   1245       1.28  augustss 		} else {	/* success */
   1246       1.28  augustss 			sc->transfer_state = TSTATE_IDLE;
   1247       1.28  augustss 			sc->transfer_cb(sc, sc->transfer_priv,
   1248       1.28  augustss 					UGETDW(sc->csw.dCSWDataResidue),
   1249       1.28  augustss 					STATUS_CMD_OK);
   1250       1.28  augustss 
   1251       1.28  augustss 			return;
   1252        1.1   thorpej 		}
   1253        1.1   thorpej 
   1254       1.28  augustss 	/***** Bulk Reset *****/
   1255       1.28  augustss 	case TSTATE_BBB_RESET1:
   1256       1.28  augustss 		if (err)
   1257       1.28  augustss 			printf("%s: BBB reset failed, %s\n",
   1258       1.28  augustss 				USBDEVNAME(sc->sc_dev), usbd_errstr(err));
   1259       1.28  augustss 
   1260       1.70   gehenna 		sc->transfer_state = TSTATE_BBB_RESET2;
   1261       1.73   gehenna 		umass_clear_endpoint_stall(sc, UMASS_BULKIN,
   1262       1.28  augustss 			sc->transfer_xfer[XFER_BBB_RESET2]);
   1263       1.28  augustss 
   1264       1.28  augustss 		return;
   1265       1.28  augustss 	case TSTATE_BBB_RESET2:
   1266       1.28  augustss 		if (err)	/* should not occur */
   1267       1.28  augustss 			printf("%s: BBB bulk-in clear stall failed, %s\n",
   1268       1.28  augustss 			       USBDEVNAME(sc->sc_dev), usbd_errstr(err));
   1269       1.28  augustss 			/* no error recovery, otherwise we end up in a loop */
   1270       1.28  augustss 
   1271       1.70   gehenna 		sc->transfer_state = TSTATE_BBB_RESET3;
   1272       1.73   gehenna 		umass_clear_endpoint_stall(sc, UMASS_BULKOUT,
   1273       1.28  augustss 			sc->transfer_xfer[XFER_BBB_RESET3]);
   1274       1.28  augustss 
   1275       1.28  augustss 		return;
   1276       1.28  augustss 	case TSTATE_BBB_RESET3:
   1277       1.28  augustss 		if (err)	/* should not occur */
   1278       1.28  augustss 			printf("%s: BBB bulk-out clear stall failed, %s\n",
   1279       1.28  augustss 			       USBDEVNAME(sc->sc_dev), usbd_errstr(err));
   1280       1.28  augustss 			/* no error recovery, otherwise we end up in a loop */
   1281       1.28  augustss 
   1282       1.28  augustss 		sc->transfer_state = TSTATE_IDLE;
   1283       1.28  augustss 		if (sc->transfer_priv) {
   1284       1.28  augustss 			sc->transfer_cb(sc, sc->transfer_priv,
   1285       1.28  augustss 					sc->transfer_datalen,
   1286       1.28  augustss 					sc->transfer_status);
   1287       1.28  augustss 		}
   1288        1.1   thorpej 
   1289       1.28  augustss 		return;
   1290        1.1   thorpej 
   1291       1.28  augustss 	/***** Default *****/
   1292       1.28  augustss 	default:
   1293       1.89    provos 		panic("%s: Unknown state %d",
   1294       1.28  augustss 		      USBDEVNAME(sc->sc_dev), sc->transfer_state);
   1295       1.28  augustss 	}
   1296        1.1   thorpej }
   1297        1.1   thorpej 
   1298        1.1   thorpej /*
   1299       1.28  augustss  * Command/Bulk/Interrupt (CBI) specific functions
   1300        1.1   thorpej  */
   1301        1.1   thorpej 
   1302       1.28  augustss Static int
   1303       1.28  augustss umass_cbi_adsc(struct umass_softc *sc, char *buffer, int buflen,
   1304       1.28  augustss 	       usbd_xfer_handle xfer)
   1305        1.1   thorpej {
   1306       1.78   gehenna 	KASSERT(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I),
   1307       1.78   gehenna 		("sc->sc_wire == 0x%02x wrong for umass_cbi_adsc\n",
   1308       1.78   gehenna 		sc->sc_wire));
   1309       1.78   gehenna 
   1310      1.123  christos 	if ((sc->sc_cmd == UMASS_CPROTO_RBC) &&
   1311      1.123  christos 	    (sc->sc_quirks & UMASS_QUIRK_RBC_PAD_TO_12) != 0 && buflen < 12) {
   1312      1.123  christos 		(void)memset(buffer + buflen, 0, 12 - buflen);
   1313      1.123  christos 		buflen = 12;
   1314      1.123  christos 	}
   1315      1.123  christos 
   1316       1.78   gehenna 	sc->sc_req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
   1317       1.78   gehenna 	sc->sc_req.bRequest = UR_CBI_ADSC;
   1318       1.78   gehenna 	USETW(sc->sc_req.wValue, 0);
   1319       1.78   gehenna 	USETW(sc->sc_req.wIndex, sc->sc_ifaceno);
   1320       1.78   gehenna 	USETW(sc->sc_req.wLength, buflen);
   1321       1.78   gehenna 	return umass_setup_ctrl_transfer(sc, &sc->sc_req, buffer,
   1322       1.28  augustss 					 buflen, 0, xfer);
   1323       1.28  augustss }
   1324       1.28  augustss 
   1325        1.1   thorpej 
   1326       1.28  augustss Static void
   1327       1.28  augustss umass_cbi_reset(struct umass_softc *sc, int status)
   1328       1.28  augustss {
   1329       1.28  augustss 	int i;
   1330       1.28  augustss #	define SEND_DIAGNOSTIC_CMDLEN	12
   1331        1.1   thorpej 
   1332       1.78   gehenna 	KASSERT(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I),
   1333       1.78   gehenna 		("sc->sc_wire == 0x%02x wrong for umass_cbi_reset\n",
   1334       1.78   gehenna 		sc->sc_wire));
   1335       1.15   thorpej 
   1336       1.28  augustss 	if (sc->sc_dying)
   1337       1.28  augustss 		return;
   1338       1.28  augustss 
   1339       1.28  augustss 	/*
   1340       1.28  augustss 	 * Command Block Reset Protocol
   1341       1.88  augustss 	 *
   1342       1.28  augustss 	 * First send a reset request to the device. Then clear
   1343       1.28  augustss 	 * any possibly stalled bulk endpoints.
   1344       1.28  augustss 
   1345       1.28  augustss 	 * This is done in 3 steps, states:
   1346       1.28  augustss 	 * TSTATE_CBI_RESET1
   1347       1.28  augustss 	 * TSTATE_CBI_RESET2
   1348       1.28  augustss 	 * TSTATE_CBI_RESET3
   1349       1.28  augustss 	 *
   1350       1.28  augustss 	 * If the reset doesn't succeed, the device should be port reset.
   1351       1.28  augustss 	 */
   1352       1.28  augustss 
   1353       1.28  augustss 	DPRINTF(UDMASS_CBI, ("%s: CBI Reset\n",
   1354       1.28  augustss 		USBDEVNAME(sc->sc_dev)));
   1355       1.88  augustss 
   1356       1.28  augustss 	KASSERT(sizeof(sc->cbl) >= SEND_DIAGNOSTIC_CMDLEN,
   1357       1.28  augustss 		("%s: CBL struct is too small (%d < %d)\n",
   1358       1.28  augustss 			USBDEVNAME(sc->sc_dev),
   1359       1.28  augustss 			sizeof(sc->cbl), SEND_DIAGNOSTIC_CMDLEN));
   1360       1.28  augustss 
   1361       1.28  augustss 	sc->transfer_state = TSTATE_CBI_RESET1;
   1362       1.28  augustss 	sc->transfer_status = status;
   1363       1.28  augustss 
   1364       1.28  augustss 	/* The 0x1d code is the SEND DIAGNOSTIC command. To distingiush between
   1365       1.28  augustss 	 * the two the last 10 bytes of the cbl is filled with 0xff (section
   1366       1.28  augustss 	 * 2.2 of the CBI spec).
   1367       1.28  augustss 	 */
   1368       1.28  augustss 	sc->cbl[0] = 0x1d;	/* Command Block Reset */
   1369       1.28  augustss 	sc->cbl[1] = 0x04;
   1370       1.28  augustss 	for (i = 2; i < SEND_DIAGNOSTIC_CMDLEN; i++)
   1371       1.28  augustss 		sc->cbl[i] = 0xff;
   1372       1.28  augustss 
   1373       1.28  augustss 	umass_cbi_adsc(sc, sc->cbl, SEND_DIAGNOSTIC_CMDLEN,
   1374       1.28  augustss 		       sc->transfer_xfer[XFER_CBI_RESET1]);
   1375       1.28  augustss 	/* XXX if the command fails we should reset the port on the bub */
   1376       1.28  augustss }
   1377       1.28  augustss 
   1378       1.28  augustss Static void
   1379      1.122  christos umass_cbi_transfer(struct umass_softc *sc, int lun,
   1380       1.67  augustss 		   void *cmd, int cmdlen, void *data, int datalen, int dir,
   1381       1.75   gehenna 		   u_int timeout, umass_callback cb, void *priv)
   1382       1.28  augustss {
   1383       1.28  augustss 	DPRINTF(UDMASS_CBI,("%s: umass_cbi_transfer cmd=0x%02x, len=%d\n",
   1384       1.87  augustss 		USBDEVNAME(sc->sc_dev), *(u_char *)cmd, datalen));
   1385       1.28  augustss 
   1386       1.78   gehenna 	KASSERT(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I),
   1387       1.78   gehenna 		("sc->sc_wire == 0x%02x wrong for umass_cbi_transfer\n",
   1388       1.78   gehenna 		sc->sc_wire));
   1389       1.28  augustss 
   1390       1.28  augustss 	if (sc->sc_dying)
   1391       1.28  augustss 		return;
   1392       1.67  augustss 
   1393       1.67  augustss 	/* Be a little generous. */
   1394       1.67  augustss 	sc->timeout = timeout + USBD_DEFAULT_TIMEOUT;
   1395       1.28  augustss 
   1396       1.28  augustss 	/*
   1397       1.28  augustss 	 * Do a CBI transfer with cmdlen bytes from cmd, possibly
   1398       1.28  augustss 	 * a data phase of datalen bytes from/to the device and finally a
   1399       1.28  augustss 	 * csw read phase.
   1400       1.28  augustss 	 * If the data direction was inbound a maximum of datalen bytes
   1401       1.28  augustss 	 * is stored in the buffer pointed to by data.
   1402       1.28  augustss 	 *
   1403       1.28  augustss 	 * umass_cbi_transfer initialises the transfer and lets the state
   1404       1.88  augustss 	 * machine in umass_cbi_state handle the completion. It uses the
   1405       1.28  augustss 	 * following states:
   1406       1.28  augustss 	 * TSTATE_CBI_COMMAND
   1407       1.28  augustss 	 *   -> XXX fill in
   1408       1.28  augustss 	 *
   1409       1.28  augustss 	 * An error in any of those states will invoke
   1410       1.28  augustss 	 * umass_cbi_reset.
   1411       1.28  augustss 	 */
   1412       1.28  augustss 
   1413       1.28  augustss 	/* check the given arguments */
   1414       1.28  augustss 	KASSERT(datalen == 0 || data != NULL,
   1415       1.28  augustss 		("%s: datalen > 0, but no buffer",USBDEVNAME(sc->sc_dev)));
   1416       1.28  augustss 	KASSERT(datalen == 0 || dir != DIR_NONE,
   1417       1.28  augustss 		("%s: direction is NONE while datalen is not zero\n",
   1418       1.28  augustss 			USBDEVNAME(sc->sc_dev)));
   1419       1.28  augustss 
   1420       1.28  augustss 	/* store the details for the data transfer phase */
   1421       1.28  augustss 	sc->transfer_dir = dir;
   1422       1.28  augustss 	sc->transfer_data = data;
   1423       1.28  augustss 	sc->transfer_datalen = datalen;
   1424       1.28  augustss 	sc->transfer_actlen = 0;
   1425       1.28  augustss 	sc->transfer_cb = cb;
   1426       1.28  augustss 	sc->transfer_priv = priv;
   1427       1.28  augustss 	sc->transfer_status = STATUS_CMD_OK;
   1428       1.28  augustss 
   1429       1.28  augustss 	/* move from idle to the command state */
   1430       1.28  augustss 	sc->transfer_state = TSTATE_CBI_COMMAND;
   1431       1.28  augustss 
   1432       1.28  augustss 	/* Send the Command Block from host to device via control endpoint. */
   1433       1.28  augustss 	if (umass_cbi_adsc(sc, cmd, cmdlen, sc->transfer_xfer[XFER_CBI_CB]))
   1434       1.28  augustss 		umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1435       1.28  augustss }
   1436       1.28  augustss 
   1437       1.28  augustss Static void
   1438       1.28  augustss umass_cbi_state(usbd_xfer_handle xfer, usbd_private_handle priv,
   1439       1.28  augustss 		usbd_status err)
   1440       1.28  augustss {
   1441       1.28  augustss 	struct umass_softc *sc = (struct umass_softc *) priv;
   1442       1.28  augustss 
   1443       1.78   gehenna 	KASSERT(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I),
   1444       1.78   gehenna 		("sc->sc_wire == 0x%02x wrong for umass_cbi_state\n",
   1445       1.78   gehenna 		sc->sc_wire));
   1446       1.28  augustss 
   1447       1.28  augustss 	if (sc->sc_dying)
   1448       1.28  augustss 		return;
   1449       1.28  augustss 
   1450       1.28  augustss 	/*
   1451       1.28  augustss 	 * State handling for CBI transfers.
   1452       1.28  augustss 	 */
   1453       1.28  augustss 
   1454       1.28  augustss 	DPRINTF(UDMASS_CBI, ("%s: Handling CBI state %d (%s), xfer=%p, %s\n",
   1455       1.28  augustss 		USBDEVNAME(sc->sc_dev), sc->transfer_state,
   1456       1.28  augustss 		states[sc->transfer_state], xfer, usbd_errstr(err)));
   1457       1.28  augustss 
   1458       1.28  augustss 	switch (sc->transfer_state) {
   1459       1.28  augustss 
   1460       1.28  augustss 	/***** CBI Transfer *****/
   1461       1.28  augustss 	case TSTATE_CBI_COMMAND:
   1462       1.28  augustss 		if (err == USBD_STALLED) {
   1463       1.28  augustss 			DPRINTF(UDMASS_CBI, ("%s: Command Transport failed\n",
   1464       1.28  augustss 				USBDEVNAME(sc->sc_dev)));
   1465       1.28  augustss 			/* Status transport by control pipe (section 2.3.2.1).
   1466       1.28  augustss 			 * The command contained in the command block failed.
   1467       1.28  augustss 			 *
   1468       1.28  augustss 			 * The control pipe has already been unstalled by the
   1469       1.28  augustss 			 * USB stack.
   1470       1.28  augustss 			 * Section 2.4.3.1.1 states that the bulk in endpoints
   1471       1.28  augustss 			 * should not stalled at this point.
   1472       1.28  augustss 			 */
   1473       1.28  augustss 
   1474       1.28  augustss 			sc->transfer_state = TSTATE_IDLE;
   1475       1.28  augustss 			sc->transfer_cb(sc, sc->transfer_priv,
   1476       1.28  augustss 					sc->transfer_datalen,
   1477       1.28  augustss 					STATUS_CMD_FAILED);
   1478       1.28  augustss 
   1479       1.28  augustss 			return;
   1480       1.28  augustss 		} else if (err) {
   1481       1.28  augustss 			DPRINTF(UDMASS_CBI, ("%s: failed to send ADSC\n",
   1482       1.28  augustss 				USBDEVNAME(sc->sc_dev)));
   1483       1.28  augustss 			umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1484       1.28  augustss 			return;
   1485       1.28  augustss 		}
   1486       1.88  augustss 
   1487      1.103   mycroft 		/* Data transport phase, setup transfer */
   1488       1.28  augustss 		sc->transfer_state = TSTATE_CBI_DATA;
   1489       1.28  augustss 		if (sc->transfer_dir == DIR_IN) {
   1490       1.73   gehenna 			if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKIN],
   1491      1.114   mycroft 					sc->data_buffer, sc->transfer_datalen,
   1492       1.28  augustss 					USBD_SHORT_XFER_OK | USBD_NO_COPY,
   1493       1.28  augustss 					sc->transfer_xfer[XFER_CBI_DATA]))
   1494       1.28  augustss 				umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1495       1.28  augustss 
   1496      1.103   mycroft 			return;
   1497       1.28  augustss 		} else if (sc->transfer_dir == DIR_OUT) {
   1498       1.88  augustss 			memcpy(sc->data_buffer, sc->transfer_data,
   1499       1.28  augustss 			       sc->transfer_datalen);
   1500       1.73   gehenna 			if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKOUT],
   1501      1.114   mycroft 					sc->data_buffer, sc->transfer_datalen,
   1502       1.28  augustss 					USBD_NO_COPY,/* fixed length transfer */
   1503       1.28  augustss 					sc->transfer_xfer[XFER_CBI_DATA]))
   1504       1.28  augustss 				umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1505       1.28  augustss 
   1506      1.103   mycroft 			return;
   1507       1.28  augustss 		} else {
   1508       1.28  augustss 			DPRINTF(UDMASS_CBI, ("%s: no data phase\n",
   1509       1.28  augustss 				USBDEVNAME(sc->sc_dev)));
   1510       1.28  augustss 		}
   1511       1.28  augustss 
   1512      1.103   mycroft 		/* FALLTHROUGH if no data phase, err == 0 */
   1513       1.28  augustss 	case TSTATE_CBI_DATA:
   1514      1.103   mycroft 		/* Command transport phase error handling (ignored if no data
   1515      1.103   mycroft 		 * phase (fallthrough from previous state)) */
   1516      1.103   mycroft 		if (sc->transfer_dir != DIR_NONE) {
   1517      1.103   mycroft 			/* retrieve the length of the transfer that was done */
   1518      1.103   mycroft 			usbd_get_xfer_status(xfer, NULL, NULL,
   1519      1.103   mycroft 			    &sc->transfer_actlen, NULL);
   1520      1.103   mycroft 			DPRINTF(UDMASS_CBI, ("%s: CBI_DATA actlen=%d\n",
   1521      1.103   mycroft 				USBDEVNAME(sc->sc_dev), sc->transfer_actlen));
   1522       1.28  augustss 
   1523      1.103   mycroft 			if (err) {
   1524      1.103   mycroft 				DPRINTF(UDMASS_CBI, ("%s: Data-%s %d failed, "
   1525      1.103   mycroft 					"%s\n", USBDEVNAME(sc->sc_dev),
   1526      1.103   mycroft 					(sc->transfer_dir == DIR_IN?"in":"out"),
   1527      1.103   mycroft 					sc->transfer_datalen,usbd_errstr(err)));
   1528       1.28  augustss 
   1529      1.103   mycroft 				if (err == USBD_STALLED) {
   1530      1.103   mycroft 					sc->transfer_state = TSTATE_CBI_DCLEAR;
   1531      1.103   mycroft 					umass_clear_endpoint_stall(sc,
   1532      1.103   mycroft 					  (sc->transfer_dir == DIR_IN?
   1533      1.103   mycroft 					    UMASS_BULKIN:UMASS_BULKOUT),
   1534       1.28  augustss 					sc->transfer_xfer[XFER_CBI_DCLEAR]);
   1535      1.103   mycroft 				} else {
   1536      1.103   mycroft 					/* Unless the error is a pipe stall the
   1537      1.103   mycroft 					 * error is fatal.
   1538      1.103   mycroft 					 */
   1539      1.103   mycroft 					umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1540      1.103   mycroft 				}
   1541      1.103   mycroft 				return;
   1542       1.28  augustss 			}
   1543       1.28  augustss 		}
   1544       1.28  augustss 
   1545       1.28  augustss 		if (sc->transfer_dir == DIR_IN)
   1546       1.28  augustss 			memcpy(sc->transfer_data, sc->data_buffer,
   1547       1.28  augustss 			       sc->transfer_actlen);
   1548       1.28  augustss 
   1549       1.28  augustss 		DIF(UDMASS_CBI, if (sc->transfer_dir == DIR_IN)
   1550       1.28  augustss 					umass_dump_buffer(sc, sc->transfer_data,
   1551       1.28  augustss 						sc->transfer_actlen, 48));
   1552       1.28  augustss 
   1553      1.103   mycroft 		/* Status phase */
   1554       1.78   gehenna 		if (sc->sc_wire == UMASS_WPROTO_CBI_I) {
   1555       1.28  augustss 			sc->transfer_state = TSTATE_CBI_STATUS;
   1556       1.28  augustss 			memset(&sc->sbl, 0, sizeof(sc->sbl));
   1557       1.73   gehenna 			if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_INTRIN],
   1558       1.28  augustss 				    &sc->sbl, sizeof(sc->sbl),
   1559       1.28  augustss 				    0,	/* fixed length transfer */
   1560      1.100   mycroft 				    sc->transfer_xfer[XFER_CBI_STATUS]))
   1561       1.28  augustss 				umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1562       1.28  augustss 		} else {
   1563       1.28  augustss 			/* No command completion interrupt. Request
   1564       1.28  augustss 			 * sense to get status of command.
   1565       1.28  augustss 			 */
   1566       1.28  augustss 			sc->transfer_state = TSTATE_IDLE;
   1567       1.28  augustss 			sc->transfer_cb(sc, sc->transfer_priv,
   1568       1.28  augustss 				sc->transfer_datalen - sc->transfer_actlen,
   1569       1.28  augustss 				STATUS_CMD_UNKNOWN);
   1570       1.28  augustss 		}
   1571       1.28  augustss 		return;
   1572       1.28  augustss 
   1573       1.28  augustss 	case TSTATE_CBI_STATUS:
   1574       1.28  augustss 		if (err) {
   1575       1.28  augustss 			DPRINTF(UDMASS_CBI, ("%s: Status Transport failed\n",
   1576       1.28  augustss 				USBDEVNAME(sc->sc_dev)));
   1577       1.28  augustss 			/* Status transport by interrupt pipe (section 2.3.2.2).
   1578       1.28  augustss 			 */
   1579       1.28  augustss 
   1580       1.28  augustss 			if (err == USBD_STALLED) {
   1581       1.70   gehenna 				sc->transfer_state = TSTATE_CBI_SCLEAR;
   1582       1.73   gehenna 				umass_clear_endpoint_stall(sc, UMASS_INTRIN,
   1583       1.28  augustss 					sc->transfer_xfer[XFER_CBI_SCLEAR]);
   1584       1.28  augustss 			} else {
   1585       1.28  augustss 				umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1586       1.28  augustss 			}
   1587       1.28  augustss 			return;
   1588       1.28  augustss 		}
   1589       1.28  augustss 
   1590       1.28  augustss 		/* Dissect the information in the buffer */
   1591       1.28  augustss 
   1592      1.100   mycroft 		{
   1593      1.100   mycroft 			u_int32_t actlen;
   1594      1.100   mycroft 			usbd_get_xfer_status(xfer,NULL,NULL,&actlen,NULL);
   1595      1.100   mycroft 			DPRINTF(UDMASS_CBI, ("%s: CBI_STATUS actlen=%d\n",
   1596      1.100   mycroft 				USBDEVNAME(sc->sc_dev), actlen));
   1597      1.100   mycroft 			if (actlen != 2)
   1598      1.100   mycroft 				break;
   1599      1.100   mycroft 		}
   1600      1.100   mycroft 
   1601       1.78   gehenna 		if (sc->sc_cmd == UMASS_CPROTO_UFI) {
   1602       1.28  augustss 			int status;
   1603       1.88  augustss 
   1604       1.28  augustss 			/* Section 3.4.3.1.3 specifies that the UFI command
   1605       1.28  augustss 			 * protocol returns an ASC and ASCQ in the interrupt
   1606       1.28  augustss 			 * data block.
   1607       1.28  augustss 			 */
   1608       1.28  augustss 
   1609       1.28  augustss 			DPRINTF(UDMASS_CBI, ("%s: UFI CCI, ASC = 0x%02x, "
   1610       1.28  augustss 				"ASCQ = 0x%02x\n",
   1611       1.28  augustss 				USBDEVNAME(sc->sc_dev),
   1612       1.28  augustss 				sc->sbl.ufi.asc, sc->sbl.ufi.ascq));
   1613       1.28  augustss 
   1614      1.100   mycroft 			if ((sc->sbl.ufi.asc == 0 && sc->sbl.ufi.ascq == 0) ||
   1615      1.100   mycroft 			    sc->sc_sense)
   1616       1.28  augustss 				status = STATUS_CMD_OK;
   1617       1.28  augustss 			else
   1618       1.28  augustss 				status = STATUS_CMD_FAILED;
   1619       1.28  augustss 
   1620      1.100   mycroft 			/* No autosense, command successful */
   1621      1.100   mycroft 			sc->transfer_state = TSTATE_IDLE;
   1622      1.100   mycroft 			sc->transfer_cb(sc, sc->transfer_priv,
   1623      1.100   mycroft 			    sc->transfer_datalen - sc->transfer_actlen, status);
   1624       1.28  augustss 		} else {
   1625      1.100   mycroft 			int status;
   1626      1.100   mycroft 
   1627       1.28  augustss 			/* Command Interrupt Data Block */
   1628      1.100   mycroft 
   1629       1.28  augustss 			DPRINTF(UDMASS_CBI, ("%s: type=0x%02x, value=0x%02x\n",
   1630       1.28  augustss 				USBDEVNAME(sc->sc_dev),
   1631       1.28  augustss 				sc->sbl.common.type, sc->sbl.common.value));
   1632       1.28  augustss 
   1633       1.28  augustss 			if (sc->sbl.common.type == IDB_TYPE_CCI) {
   1634      1.100   mycroft 				switch (sc->sbl.common.value & IDB_VALUE_STATUS_MASK) {
   1635      1.100   mycroft 				case IDB_VALUE_PASS:
   1636      1.100   mycroft 					status = STATUS_CMD_OK;
   1637      1.100   mycroft 					break;
   1638      1.100   mycroft 				case IDB_VALUE_FAIL:
   1639      1.100   mycroft 				case IDB_VALUE_PERSISTENT:
   1640      1.100   mycroft 					status = STATUS_CMD_FAILED;
   1641      1.100   mycroft 					break;
   1642      1.100   mycroft 				case IDB_VALUE_PHASE:
   1643      1.107   mycroft 				default: /* XXX: gcc */
   1644      1.100   mycroft 					status = STATUS_WIRE_FAILED;
   1645      1.100   mycroft 					break;
   1646       1.28  augustss 				}
   1647       1.28  augustss 
   1648       1.28  augustss 				sc->transfer_state = TSTATE_IDLE;
   1649       1.28  augustss 				sc->transfer_cb(sc, sc->transfer_priv,
   1650      1.100   mycroft 				    sc->transfer_datalen - sc->transfer_actlen, status);
   1651       1.28  augustss 			}
   1652       1.28  augustss 		}
   1653       1.28  augustss 		return;
   1654       1.28  augustss 
   1655       1.28  augustss 	case TSTATE_CBI_DCLEAR:
   1656      1.113   mycroft 		if (err) {	/* should not occur */
   1657      1.103   mycroft 			printf("%s: CBI bulk-%s stall clear failed, %s\n",
   1658      1.103   mycroft 			    USBDEVNAME(sc->sc_dev),
   1659      1.103   mycroft 			    (sc->transfer_dir == DIR_IN? "in":"out"),
   1660      1.103   mycroft 			    usbd_errstr(err));
   1661      1.113   mycroft 			umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1662      1.115   mycroft 		} else {
   1663      1.115   mycroft 			sc->transfer_state = TSTATE_IDLE;
   1664      1.115   mycroft 			sc->transfer_cb(sc, sc->transfer_priv,
   1665      1.115   mycroft 			    sc->transfer_datalen, STATUS_CMD_FAILED);
   1666      1.115   mycroft 		}
   1667       1.28  augustss 		return;
   1668       1.28  augustss 
   1669       1.28  augustss 	case TSTATE_CBI_SCLEAR:
   1670      1.113   mycroft 		if (err) {	/* should not occur */
   1671       1.28  augustss 			printf("%s: CBI intr-in stall clear failed, %s\n",
   1672       1.28  augustss 			       USBDEVNAME(sc->sc_dev), usbd_errstr(err));
   1673      1.113   mycroft 			umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1674      1.115   mycroft 		} else {
   1675      1.115   mycroft 			sc->transfer_state = TSTATE_IDLE;
   1676      1.115   mycroft 			sc->transfer_cb(sc, sc->transfer_priv,
   1677      1.115   mycroft 			    sc->transfer_datalen, STATUS_CMD_FAILED);
   1678      1.115   mycroft 		}
   1679       1.28  augustss 		return;
   1680       1.28  augustss 
   1681       1.28  augustss 	/***** CBI Reset *****/
   1682       1.28  augustss 	case TSTATE_CBI_RESET1:
   1683       1.28  augustss 		if (err)
   1684       1.28  augustss 			printf("%s: CBI reset failed, %s\n",
   1685       1.28  augustss 				USBDEVNAME(sc->sc_dev), usbd_errstr(err));
   1686       1.28  augustss 
   1687       1.70   gehenna 		sc->transfer_state = TSTATE_CBI_RESET2;
   1688       1.73   gehenna 		umass_clear_endpoint_stall(sc, UMASS_BULKIN,
   1689       1.28  augustss 			sc->transfer_xfer[XFER_CBI_RESET2]);
   1690       1.28  augustss 
   1691       1.28  augustss 		return;
   1692       1.28  augustss 	case TSTATE_CBI_RESET2:
   1693       1.28  augustss 		if (err)	/* should not occur */
   1694       1.28  augustss 			printf("%s: CBI bulk-in stall clear failed, %s\n",
   1695       1.28  augustss 			       USBDEVNAME(sc->sc_dev), usbd_errstr(err));
   1696       1.28  augustss 			/* no error recovery, otherwise we end up in a loop */
   1697       1.28  augustss 
   1698       1.70   gehenna 		sc->transfer_state = TSTATE_CBI_RESET3;
   1699       1.73   gehenna 		umass_clear_endpoint_stall(sc, UMASS_BULKOUT,
   1700       1.28  augustss 			sc->transfer_xfer[XFER_CBI_RESET3]);
   1701       1.28  augustss 
   1702       1.28  augustss 		return;
   1703       1.28  augustss 	case TSTATE_CBI_RESET3:
   1704       1.28  augustss 		if (err)	/* should not occur */
   1705       1.28  augustss 			printf("%s: CBI bulk-out stall clear failed, %s\n",
   1706       1.28  augustss 			       USBDEVNAME(sc->sc_dev), usbd_errstr(err));
   1707       1.28  augustss 			/* no error recovery, otherwise we end up in a loop */
   1708       1.28  augustss 
   1709       1.28  augustss 		sc->transfer_state = TSTATE_IDLE;
   1710       1.28  augustss 		if (sc->transfer_priv) {
   1711       1.28  augustss 			sc->transfer_cb(sc, sc->transfer_priv,
   1712       1.28  augustss 					sc->transfer_datalen,
   1713       1.28  augustss 					sc->transfer_status);
   1714       1.28  augustss 		}
   1715       1.28  augustss 
   1716       1.28  augustss 		return;
   1717       1.28  augustss 
   1718       1.28  augustss 
   1719       1.28  augustss 	/***** Default *****/
   1720       1.28  augustss 	default:
   1721       1.89    provos 		panic("%s: Unknown state %d",
   1722       1.28  augustss 		      USBDEVNAME(sc->sc_dev), sc->transfer_state);
   1723       1.28  augustss 	}
   1724       1.28  augustss }
   1725       1.28  augustss 
   1726       1.28  augustss usbd_status
   1727       1.28  augustss umass_bbb_get_max_lun(struct umass_softc *sc, u_int8_t *maxlun)
   1728       1.28  augustss {
   1729       1.28  augustss 	usb_device_request_t req;
   1730       1.28  augustss 	usbd_status err;
   1731       1.28  augustss 
   1732       1.28  augustss 	*maxlun = 0;		/* Default to 0. */
   1733       1.28  augustss 
   1734       1.28  augustss 	DPRINTF(UDMASS_BBB, ("%s: Get Max Lun\n", USBDEVNAME(sc->sc_dev)));
   1735       1.28  augustss 
   1736       1.28  augustss 	/* The Get Max Lun command is a class-specific request. */
   1737       1.28  augustss 	req.bmRequestType = UT_READ_CLASS_INTERFACE;
   1738       1.28  augustss 	req.bRequest = UR_BBB_GET_MAX_LUN;
   1739       1.28  augustss 	USETW(req.wValue, 0);
   1740       1.76   gehenna 	USETW(req.wIndex, sc->sc_ifaceno);
   1741       1.28  augustss 	USETW(req.wLength, 1);
   1742       1.28  augustss 
   1743       1.97   mycroft 	err = usbd_do_request_flags(sc->sc_udev, &req, maxlun,
   1744       1.97   mycroft 	    USBD_SHORT_XFER_OK, 0, USBD_DEFAULT_TIMEOUT);
   1745       1.28  augustss 	switch (err) {
   1746       1.28  augustss 	case USBD_NORMAL_COMPLETION:
   1747       1.28  augustss 		DPRINTF(UDMASS_BBB, ("%s: Max Lun %d\n",
   1748       1.28  augustss 		    USBDEVNAME(sc->sc_dev), *maxlun));
   1749       1.28  augustss 		break;
   1750       1.28  augustss 
   1751       1.28  augustss 	case USBD_STALLED:
   1752       1.28  augustss 		/*
   1753       1.28  augustss 		 * Device doesn't support Get Max Lun request.
   1754       1.28  augustss 		 */
   1755       1.28  augustss 		err = USBD_NORMAL_COMPLETION;
   1756       1.28  augustss 		DPRINTF(UDMASS_BBB, ("%s: Get Max Lun not supported\n",
   1757       1.28  augustss 		    USBDEVNAME(sc->sc_dev)));
   1758       1.28  augustss 		break;
   1759       1.28  augustss 
   1760       1.28  augustss 	case USBD_SHORT_XFER:
   1761       1.28  augustss 		/*
   1762       1.28  augustss 		 * XXX This must mean Get Max Lun is not supported, too!
   1763       1.28  augustss 		 */
   1764       1.28  augustss 		err = USBD_NORMAL_COMPLETION;
   1765       1.28  augustss 		DPRINTF(UDMASS_BBB, ("%s: Get Max Lun SHORT_XFER\n",
   1766       1.28  augustss 		    USBDEVNAME(sc->sc_dev)));
   1767       1.28  augustss 		break;
   1768       1.28  augustss 
   1769       1.28  augustss 	default:
   1770       1.28  augustss 		printf("%s: Get Max Lun failed: %s\n",
   1771       1.28  augustss 		    USBDEVNAME(sc->sc_dev), usbd_errstr(err));
   1772       1.28  augustss 		/* XXX Should we port_reset the device? */
   1773       1.28  augustss 		break;
   1774       1.28  augustss 	}
   1775       1.28  augustss 
   1776       1.28  augustss 	return (err);
   1777       1.28  augustss }
   1778       1.28  augustss 
   1779       1.28  augustss 
   1780       1.28  augustss 
   1781       1.28  augustss 
   1782       1.28  augustss #ifdef UMASS_DEBUG
   1783       1.28  augustss Static void
   1784       1.28  augustss umass_bbb_dump_cbw(struct umass_softc *sc, umass_bbb_cbw_t *cbw)
   1785       1.28  augustss {
   1786       1.28  augustss 	int clen = cbw->bCDBLength;
   1787       1.28  augustss 	int dlen = UGETDW(cbw->dCBWDataTransferLength);
   1788       1.28  augustss 	u_int8_t *c = cbw->CBWCDB;
   1789       1.28  augustss 	int tag = UGETDW(cbw->dCBWTag);
   1790       1.28  augustss 	int flags = cbw->bCBWFlags;
   1791       1.28  augustss 
   1792       1.83  augustss 	DPRINTF(UDMASS_BBB, ("%s: CBW %d: cmdlen=%d "
   1793       1.83  augustss 		"(0x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%s), "
   1794       1.28  augustss 		"data = %d bytes, dir = %s\n",
   1795       1.28  augustss 		USBDEVNAME(sc->sc_dev), tag, clen,
   1796       1.83  augustss 		c[0], c[1], c[2], c[3], c[4], c[5],
   1797       1.83  augustss 		c[6], c[7], c[8], c[9],
   1798       1.83  augustss 		(clen > 10? "...":""),
   1799       1.28  augustss 		dlen, (flags == CBWFLAGS_IN? "in":
   1800       1.28  augustss 		       (flags == CBWFLAGS_OUT? "out":"<invalid>"))));
   1801       1.28  augustss }
   1802       1.28  augustss 
   1803       1.28  augustss Static void
   1804       1.28  augustss umass_bbb_dump_csw(struct umass_softc *sc, umass_bbb_csw_t *csw)
   1805       1.28  augustss {
   1806       1.28  augustss 	int sig = UGETDW(csw->dCSWSignature);
   1807      1.112   mycroft 	int tag = UGETDW(csw->dCSWTag);
   1808       1.28  augustss 	int res = UGETDW(csw->dCSWDataResidue);
   1809       1.28  augustss 	int status = csw->bCSWStatus;
   1810       1.28  augustss 
   1811       1.28  augustss 	DPRINTF(UDMASS_BBB, ("%s: CSW %d: sig = 0x%08x (%s), tag = %d, "
   1812       1.28  augustss 		"res = %d, status = 0x%02x (%s)\n", USBDEVNAME(sc->sc_dev),
   1813       1.28  augustss 		tag, sig, (sig == CSWSIGNATURE?	 "valid":"invalid"),
   1814       1.28  augustss 		tag, res,
   1815       1.28  augustss 		status, (status == CSWSTATUS_GOOD? "good":
   1816       1.28  augustss 			 (status == CSWSTATUS_FAILED? "failed":
   1817       1.28  augustss 			  (status == CSWSTATUS_PHASE? "phase":"<invalid>")))));
   1818       1.28  augustss }
   1819       1.28  augustss 
   1820       1.28  augustss Static void
   1821       1.28  augustss umass_dump_buffer(struct umass_softc *sc, u_int8_t *buffer, int buflen,
   1822       1.28  augustss 		  int printlen)
   1823       1.28  augustss {
   1824       1.28  augustss 	int i, j;
   1825       1.28  augustss 	char s1[40];
   1826       1.28  augustss 	char s2[40];
   1827       1.28  augustss 	char s3[5];
   1828       1.28  augustss 
   1829       1.28  augustss 	s1[0] = '\0';
   1830       1.28  augustss 	s3[0] = '\0';
   1831       1.28  augustss 
   1832      1.110    itojun 	snprintf(s2, sizeof(s2), " buffer=%p, buflen=%d", buffer, buflen);
   1833       1.28  augustss 	for (i = 0; i < buflen && i < printlen; i++) {
   1834       1.28  augustss 		j = i % 16;
   1835       1.28  augustss 		if (j == 0 && i != 0) {
   1836       1.28  augustss 			DPRINTF(UDMASS_GEN, ("%s: 0x %s%s\n",
   1837       1.28  augustss 				USBDEVNAME(sc->sc_dev), s1, s2));
   1838       1.28  augustss 			s2[0] = '\0';
   1839       1.28  augustss 		}
   1840      1.110    itojun 		snprintf(&s1[j * 2], sizeof(s1) - j * 2, "%02x",
   1841      1.110    itojun 		    buffer[i] & 0xff);
   1842       1.28  augustss 	}
   1843       1.28  augustss 	if (buflen > printlen)
   1844      1.110    itojun 		snprintf(s3, sizeof(s3), " ...");
   1845       1.28  augustss 	DPRINTF(UDMASS_GEN, ("%s: 0x %s%s%s\n",
   1846       1.28  augustss 		USBDEVNAME(sc->sc_dev), s1, s2, s3));
   1847       1.28  augustss }
   1848       1.28  augustss #endif
   1849