Home | History | Annotate | Line # | Download | only in usb
umass.c revision 1.126.8.2
      1  1.126.8.2      yamt /*	$NetBSD: umass.c,v 1.126.8.2 2008/06/04 02:05:21 yamt 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  *
     19      1.102   mycroft  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20      1.102   mycroft  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21      1.102   mycroft  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22      1.102   mycroft  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23      1.102   mycroft  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24      1.102   mycroft  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25      1.102   mycroft  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26      1.102   mycroft  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27      1.102   mycroft  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28      1.102   mycroft  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29      1.102   mycroft  * POSSIBILITY OF SUCH DAMAGE.
     30      1.102   mycroft  */
     31      1.102   mycroft 
     32        1.1   thorpej /*-
     33        1.1   thorpej  * Copyright (c) 1999 MAEKAWA Masahide <bishop (at) rr.iij4u.or.jp>,
     34       1.28  augustss  *		      Nick Hibma <n_hibma (at) freebsd.org>
     35        1.1   thorpej  * All rights reserved.
     36        1.1   thorpej  *
     37        1.1   thorpej  * Redistribution and use in source and binary forms, with or without
     38        1.1   thorpej  * modification, are permitted provided that the following conditions
     39        1.1   thorpej  * are met:
     40        1.1   thorpej  * 1. Redistributions of source code must retain the above copyright
     41        1.1   thorpej  *    notice, this list of conditions and the following disclaimer.
     42        1.1   thorpej  * 2. Redistributions in binary form must reproduce the above copyright
     43        1.1   thorpej  *    notice, this list of conditions and the following disclaimer in the
     44        1.1   thorpej  *    documentation and/or other materials provided with the distribution.
     45        1.1   thorpej  *
     46        1.1   thorpej  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     47        1.1   thorpej  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     48        1.1   thorpej  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     49        1.1   thorpej  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     50        1.1   thorpej  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     51        1.1   thorpej  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     52        1.1   thorpej  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     53        1.1   thorpej  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     54        1.1   thorpej  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     55        1.1   thorpej  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     56        1.1   thorpej  * SUCH DAMAGE.
     57        1.1   thorpej  *
     58       1.28  augustss  *     $FreeBSD: src/sys/dev/usb/umass.c,v 1.13 2000/03/26 01:39:12 n_hibma Exp $
     59       1.28  augustss  */
     60       1.28  augustss 
     61       1.28  augustss /*
     62       1.47  augustss  * Universal Serial Bus Mass Storage Class specs:
     63      1.108       wiz  * http://www.usb.org/developers/devclass_docs/usb_msc_overview_1.2.pdf
     64      1.108       wiz  * http://www.usb.org/developers/devclass_docs/usbmassbulk_10.pdf
     65      1.108       wiz  * http://www.usb.org/developers/devclass_docs/usb_msc_cbi_1.1.pdf
     66      1.108       wiz  * http://www.usb.org/developers/devclass_docs/usbmass-ufi10.pdf
     67       1.28  augustss  */
     68       1.28  augustss 
     69       1.28  augustss /*
     70      1.109    keihan  * Ported to NetBSD by Lennart Augustsson <augustss (at) NetBSD.org>.
     71       1.90     pooka  * Parts of the code written by Jason R. Thorpe <thorpej (at) shagadelic.org>.
     72        1.1   thorpej  */
     73        1.1   thorpej 
     74        1.1   thorpej /*
     75       1.28  augustss  * The driver handles 3 Wire Protocols
     76       1.28  augustss  * - Command/Bulk/Interrupt (CBI)
     77       1.28  augustss  * - Command/Bulk/Interrupt with Command Completion Interrupt (CBI with CCI)
     78       1.28  augustss  * - Mass Storage Bulk-Only (BBB)
     79       1.28  augustss  *   (BBB refers Bulk/Bulk/Bulk for Command/Data/Status phases)
     80       1.28  augustss  *
     81       1.28  augustss  * Over these wire protocols it handles the following command protocols
     82       1.28  augustss  * - SCSI
     83       1.54  augustss  * - 8070 (ATA/ATAPI for rewritable removable media)
     84       1.54  augustss  * - UFI (USB Floppy Interface)
     85        1.1   thorpej  *
     86       1.54  augustss  * 8070i is a transformed version of the SCSI command set. UFI is a transformed
     87       1.88  augustss  * version of the 8070i command set.  The sc->transform method is used to
     88       1.54  augustss  * convert the commands into the appropriate format (if at all necessary).
     89       1.54  augustss  * For example, ATAPI requires all commands to be 12 bytes in length amongst
     90       1.54  augustss  * other things.
     91        1.3   thorpej  *
     92       1.28  augustss  * The source code below is marked and can be split into a number of pieces
     93       1.28  augustss  * (in this order):
     94        1.3   thorpej  *
     95       1.28  augustss  * - probe/attach/detach
     96       1.28  augustss  * - generic transfer routines
     97       1.28  augustss  * - BBB
     98       1.28  augustss  * - CBI
     99       1.28  augustss  * - CBI_I (in addition to functions from CBI)
    100       1.28  augustss  * - CAM (Common Access Method)
    101       1.28  augustss  * - SCSI
    102       1.28  augustss  * - UFI
    103       1.28  augustss  * - 8070i
    104        1.3   thorpej  *
    105       1.28  augustss  * The protocols are implemented using a state machine, for the transfers as
    106       1.28  augustss  * well as for the resets. The state machine is contained in umass_*_state.
    107       1.28  augustss  * The state machine is started through either umass_*_transfer or
    108       1.28  augustss  * umass_*_reset.
    109       1.28  augustss  *
    110       1.28  augustss  * The reason for doing this is a) CAM performs a lot better this way and b) it
    111       1.28  augustss  * avoids using tsleep from interrupt context (for example after a failed
    112       1.28  augustss  * transfer).
    113        1.1   thorpej  */
    114        1.1   thorpej 
    115       1.28  augustss /*
    116       1.28  augustss  * The SCSI related part of this driver has been derived from the
    117       1.28  augustss  * dev/ppbus/vpo.c driver, by Nicolas Souchu (nsouch (at) freebsd.org).
    118        1.1   thorpej  *
    119       1.28  augustss  * The CAM layer uses so called actions which are messages sent to the host
    120       1.28  augustss  * adapter for completion. The actions come in through umass_cam_action. The
    121       1.28  augustss  * appropriate block of routines is called depending on the transport protocol
    122       1.28  augustss  * in use. When the transfer has finished, these routines call
    123       1.28  augustss  * umass_cam_cb again to complete the CAM command.
    124        1.1   thorpej  */
    125       1.64     lukem 
    126       1.64     lukem #include <sys/cdefs.h>
    127  1.126.8.2      yamt __KERNEL_RCSID(0, "$NetBSD: umass.c,v 1.126.8.2 2008/06/04 02:05:21 yamt Exp $");
    128        1.1   thorpej 
    129       1.29     enami #include "atapibus.h"
    130       1.79  augustss #include "scsibus.h"
    131       1.80  augustss #include "wd.h"
    132       1.29     enami 
    133        1.1   thorpej #include <sys/param.h>
    134        1.1   thorpej #include <sys/systm.h>
    135        1.1   thorpej #include <sys/kernel.h>
    136       1.28  augustss #include <sys/conf.h>
    137       1.28  augustss #if defined(__NetBSD__) || defined(__OpenBSD__)
    138       1.28  augustss #include <sys/buf.h>
    139       1.28  augustss #include <sys/device.h>
    140        1.1   thorpej #include <sys/malloc.h>
    141       1.28  augustss #undef KASSERT
    142       1.28  augustss #define KASSERT(cond, msg)
    143       1.28  augustss #elif defined(__FreeBSD__)
    144       1.28  augustss #include <sys/module.h>
    145       1.28  augustss #include <sys/bus.h>
    146       1.28  augustss #include <machine/clock.h>
    147       1.28  augustss #endif
    148        1.1   thorpej 
    149        1.1   thorpej #include <dev/usb/usb.h>
    150        1.1   thorpej #include <dev/usb/usbdi.h>
    151        1.1   thorpej #include <dev/usb/usbdi_util.h>
    152       1.28  augustss #include <dev/usb/usbdevs.h>
    153        1.1   thorpej 
    154       1.56  augustss #include <dev/usb/umassvar.h>
    155       1.78   gehenna #include <dev/usb/umass_quirks.h>
    156       1.79  augustss #include <dev/usb/umass_scsipi.h>
    157       1.80  augustss #include <dev/usb/umass_isdata.h>
    158       1.28  augustss 
    159       1.99   mycroft #include <dev/scsipi/scsipi_all.h>
    160       1.99   mycroft #include <dev/scsipi/scsipiconf.h>
    161       1.99   mycroft 
    162       1.28  augustss 
    163       1.28  augustss #ifdef UMASS_DEBUG
    164       1.57  augustss int umassdebug = 0;
    165       1.57  augustss 
    166      1.119  drochner const char *states[TSTATE_STATES+1] = {
    167       1.28  augustss 	/* should be kept in sync with the list at transfer_state */
    168       1.28  augustss 	"Idle",
    169       1.28  augustss 	"BBB CBW",
    170       1.28  augustss 	"BBB Data",
    171       1.28  augustss 	"BBB Data bulk-in/-out clear stall",
    172       1.28  augustss 	"BBB CSW, 1st attempt",
    173       1.28  augustss 	"BBB CSW bulk-in clear stall",
    174       1.28  augustss 	"BBB CSW, 2nd attempt",
    175       1.28  augustss 	"BBB Reset",
    176       1.28  augustss 	"BBB bulk-in clear stall",
    177       1.28  augustss 	"BBB bulk-out clear stall",
    178       1.28  augustss 	"CBI Command",
    179       1.28  augustss 	"CBI Data",
    180       1.28  augustss 	"CBI Status",
    181       1.28  augustss 	"CBI Data bulk-in/-out clear stall",
    182       1.28  augustss 	"CBI Status intr-in clear stall",
    183       1.28  augustss 	"CBI Reset",
    184       1.28  augustss 	"CBI bulk-in clear stall",
    185       1.28  augustss 	"CBI bulk-out clear stall",
    186       1.28  augustss 	NULL
    187       1.28  augustss };
    188       1.28  augustss #endif
    189        1.1   thorpej 
    190       1.28  augustss /* USB device probe/attach/detach functions */
    191        1.1   thorpej USB_DECLARE_DRIVER(umass);
    192       1.38  augustss Static void umass_disco(struct umass_softc *sc);
    193        1.1   thorpej 
    194       1.28  augustss /* generic transfer functions */
    195       1.38  augustss Static usbd_status umass_setup_transfer(struct umass_softc *sc,
    196        1.1   thorpej 				usbd_pipe_handle pipe,
    197       1.28  augustss 				void *buffer, int buflen, int flags,
    198       1.38  augustss 				usbd_xfer_handle xfer);
    199       1.38  augustss Static usbd_status umass_setup_ctrl_transfer(struct umass_softc *sc,
    200       1.28  augustss 				usb_device_request_t *req,
    201       1.88  augustss 				void *buffer, int buflen, int flags,
    202       1.38  augustss 				usbd_xfer_handle xfer);
    203       1.73   gehenna Static void umass_clear_endpoint_stall(struct umass_softc *sc, int endpt,
    204       1.70   gehenna 				usbd_xfer_handle xfer);
    205       1.29     enami #if 0
    206       1.38  augustss Static void umass_reset(struct umass_softc *sc,	transfer_cb_f cb, void *priv);
    207       1.29     enami #endif
    208        1.1   thorpej 
    209        1.1   thorpej /* Bulk-Only related functions */
    210       1.75   gehenna Static void umass_bbb_transfer(struct umass_softc *, int, void *, int, void *,
    211       1.75   gehenna 			       int, int, u_int, umass_callback, void *);
    212       1.75   gehenna Static void umass_bbb_reset(struct umass_softc *, int);
    213       1.75   gehenna Static void umass_bbb_state(usbd_xfer_handle, usbd_private_handle, usbd_status);
    214       1.28  augustss 
    215       1.75   gehenna usbd_status umass_bbb_get_max_lun(struct umass_softc *, u_int8_t *);
    216       1.28  augustss 
    217       1.28  augustss /* CBI related functions */
    218       1.88  augustss Static void umass_cbi_transfer(struct umass_softc *, int, void *, int, void *,
    219       1.75   gehenna 			       int, int, u_int, umass_callback, void *);
    220       1.75   gehenna Static void umass_cbi_reset(struct umass_softc *, int);
    221       1.75   gehenna Static void umass_cbi_state(usbd_xfer_handle, usbd_private_handle, usbd_status);
    222       1.75   gehenna 
    223       1.75   gehenna Static int umass_cbi_adsc(struct umass_softc *, char *, int, usbd_xfer_handle);
    224       1.75   gehenna 
    225       1.75   gehenna const struct umass_wire_methods umass_bbb_methods = {
    226       1.75   gehenna 	umass_bbb_transfer,
    227       1.75   gehenna 	umass_bbb_reset,
    228       1.75   gehenna 	umass_bbb_state
    229       1.75   gehenna };
    230       1.75   gehenna 
    231       1.75   gehenna const struct umass_wire_methods umass_cbi_methods = {
    232       1.75   gehenna 	umass_cbi_transfer,
    233       1.75   gehenna 	umass_cbi_reset,
    234       1.75   gehenna 	umass_cbi_state
    235       1.75   gehenna };
    236       1.28  augustss 
    237       1.28  augustss #ifdef UMASS_DEBUG
    238       1.28  augustss /* General debugging functions */
    239       1.38  augustss Static void umass_bbb_dump_cbw(struct umass_softc *sc,
    240       1.38  augustss 				umass_bbb_cbw_t *cbw);
    241       1.38  augustss Static void umass_bbb_dump_csw(struct umass_softc *sc,
    242       1.38  augustss 				umass_bbb_csw_t *csw);
    243       1.38  augustss Static void umass_dump_buffer(struct umass_softc *sc, u_int8_t *buffer,
    244       1.38  augustss 				int buflen, int printlen);
    245       1.28  augustss #endif
    246       1.28  augustss 
    247       1.28  augustss 
    248       1.28  augustss /*
    249       1.28  augustss  * USB device probe/attach/detach
    250       1.28  augustss  */
    251       1.28  augustss 
    252       1.78   gehenna USB_MATCH(umass)
    253       1.28  augustss {
    254      1.124  drochner 	USB_IFMATCH_START(umass, uaa);
    255       1.78   gehenna 	const struct umass_quirk *quirk;
    256       1.28  augustss 
    257       1.78   gehenna 	quirk = umass_lookup(uaa->vendor, uaa->product);
    258      1.126    ichiro 	if (quirk != NULL && quirk->uq_match != UMASS_QUIRK_USE_DEFAULTMATCH)
    259       1.78   gehenna 		return (quirk->uq_match);
    260       1.40  augustss 
    261      1.124  drochner 	if (uaa->class != UICLASS_MASS)
    262       1.28  augustss 		return (UMATCH_NONE);
    263        1.1   thorpej 
    264      1.124  drochner 	switch (uaa->subclass) {
    265       1.78   gehenna 	case UISUBCLASS_RBC:
    266       1.78   gehenna 	case UISUBCLASS_SFF8020I:
    267       1.78   gehenna 	case UISUBCLASS_QIC157:
    268       1.28  augustss 	case UISUBCLASS_UFI:
    269       1.28  augustss 	case UISUBCLASS_SFF8070I:
    270       1.78   gehenna 	case UISUBCLASS_SCSI:
    271       1.40  augustss 		break;
    272       1.28  augustss 	default:
    273       1.78   gehenna 		return (UMATCH_IFACECLASS);
    274       1.28  augustss 	}
    275       1.28  augustss 
    276      1.124  drochner 	switch (uaa->proto) {
    277       1.78   gehenna 	case UIPROTO_MASS_CBI_I:
    278       1.28  augustss 	case UIPROTO_MASS_CBI:
    279       1.78   gehenna 	case UIPROTO_MASS_BBB_OLD:
    280       1.28  augustss 	case UIPROTO_MASS_BBB:
    281       1.28  augustss 		break;
    282       1.28  augustss 	default:
    283       1.78   gehenna 		return (UMATCH_IFACECLASS_IFACESUBCLASS);
    284       1.28  augustss 	}
    285        1.1   thorpej 
    286       1.78   gehenna 	return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
    287        1.1   thorpej }
    288        1.1   thorpej 
    289        1.1   thorpej USB_ATTACH(umass)
    290        1.1   thorpej {
    291      1.124  drochner 	USB_IFATTACH_START(umass, sc, uaa);
    292       1.78   gehenna 	const struct umass_quirk *quirk;
    293        1.1   thorpej 	usb_interface_descriptor_t *id;
    294        1.1   thorpej 	usb_endpoint_descriptor_t *ed;
    295       1.78   gehenna 	const char *sWire, *sCommand;
    296      1.118  augustss 	char *devinfop;
    297       1.78   gehenna 	usbd_status err;
    298       1.79  augustss 	int i, bno, error;
    299        1.1   thorpej 
    300  1.126.8.2      yamt 	sc->sc_dev = self;
    301  1.126.8.2      yamt 
    302      1.118  augustss 	devinfop = usbd_devinfo_alloc(uaa->device, 0);
    303        1.1   thorpej 	USB_ATTACH_SETUP;
    304  1.126.8.2      yamt 	aprint_normal_dev(self, "%s\n", devinfop);
    305      1.118  augustss 	usbd_devinfo_free(devinfop);
    306        1.1   thorpej 
    307       1.78   gehenna 	sc->sc_udev = uaa->device;
    308       1.76   gehenna 	sc->sc_iface = uaa->iface;
    309       1.76   gehenna 	sc->sc_ifaceno = uaa->ifaceno;
    310       1.28  augustss 
    311       1.78   gehenna 	quirk = umass_lookup(uaa->vendor, uaa->product);
    312       1.78   gehenna 	if (quirk != NULL) {
    313       1.78   gehenna 		sc->sc_wire = quirk->uq_wire;
    314       1.78   gehenna 		sc->sc_cmd = quirk->uq_cmd;
    315       1.78   gehenna 		sc->sc_quirks = quirk->uq_flags;
    316       1.82  augustss 		sc->sc_busquirks = quirk->uq_busquirks;
    317       1.78   gehenna 
    318       1.78   gehenna 		if (quirk->uq_fixup != NULL)
    319       1.78   gehenna 			(*quirk->uq_fixup)(sc);
    320       1.78   gehenna 	} else {
    321       1.78   gehenna 		sc->sc_wire = UMASS_WPROTO_UNSPEC;
    322       1.78   gehenna 		sc->sc_cmd = UMASS_CPROTO_UNSPEC;
    323       1.78   gehenna 		sc->sc_quirks = 0;
    324       1.82  augustss 		sc->sc_busquirks = 0;
    325       1.78   gehenna 	}
    326       1.78   gehenna 
    327       1.78   gehenna 	if (sc->sc_wire == UMASS_WPROTO_UNSPEC) {
    328      1.124  drochner 		switch (uaa->proto) {
    329       1.78   gehenna 		case UIPROTO_MASS_CBI:
    330       1.78   gehenna 			sc->sc_wire = UMASS_WPROTO_CBI;
    331       1.78   gehenna 			break;
    332       1.78   gehenna 		case UIPROTO_MASS_CBI_I:
    333       1.78   gehenna 			sc->sc_wire = UMASS_WPROTO_CBI_I;
    334       1.78   gehenna 			break;
    335       1.78   gehenna 		case UIPROTO_MASS_BBB:
    336       1.78   gehenna 		case UIPROTO_MASS_BBB_OLD:
    337       1.78   gehenna 			sc->sc_wire = UMASS_WPROTO_BBB;
    338       1.78   gehenna 			break;
    339       1.78   gehenna 		default:
    340       1.78   gehenna 			DPRINTF(UDMASS_GEN,
    341       1.78   gehenna 				("%s: Unsupported wire protocol %u\n",
    342       1.78   gehenna 				USBDEVNAME(sc->sc_dev),
    343      1.124  drochner 				uaa->proto));
    344       1.78   gehenna 			USB_ATTACH_ERROR_RETURN;
    345       1.78   gehenna 		}
    346       1.40  augustss 	}
    347       1.28  augustss 
    348       1.78   gehenna 	if (sc->sc_cmd == UMASS_CPROTO_UNSPEC) {
    349      1.124  drochner 		switch (uaa->subclass) {
    350       1.78   gehenna 		case UISUBCLASS_SCSI:
    351       1.78   gehenna 			sc->sc_cmd = UMASS_CPROTO_SCSI;
    352       1.78   gehenna 			break;
    353       1.78   gehenna 		case UISUBCLASS_UFI:
    354       1.78   gehenna 			sc->sc_cmd = UMASS_CPROTO_UFI;
    355       1.78   gehenna 			break;
    356       1.78   gehenna 		case UISUBCLASS_SFF8020I:
    357       1.78   gehenna 		case UISUBCLASS_SFF8070I:
    358       1.78   gehenna 		case UISUBCLASS_QIC157:
    359       1.78   gehenna 			sc->sc_cmd = UMASS_CPROTO_ATAPI;
    360       1.78   gehenna 			break;
    361       1.78   gehenna 		case UISUBCLASS_RBC:
    362       1.78   gehenna 			sc->sc_cmd = UMASS_CPROTO_RBC;
    363       1.78   gehenna 			break;
    364       1.78   gehenna 		default:
    365       1.78   gehenna 			DPRINTF(UDMASS_GEN,
    366       1.78   gehenna 				("%s: Unsupported command protocol %u\n",
    367       1.78   gehenna 				USBDEVNAME(sc->sc_dev),
    368      1.124  drochner 				uaa->subclass));
    369       1.51   tsutsui 			USB_ATTACH_ERROR_RETURN;
    370       1.78   gehenna 		}
    371       1.78   gehenna 	}
    372       1.17   thorpej 
    373       1.78   gehenna 	switch (sc->sc_wire) {
    374       1.78   gehenna 	case UMASS_WPROTO_CBI:
    375       1.78   gehenna 		sWire = "CBI";
    376       1.32  augustss 		break;
    377       1.78   gehenna 	case UMASS_WPROTO_CBI_I:
    378       1.78   gehenna 		sWire = "CBI with CCI";
    379       1.28  augustss 		break;
    380       1.78   gehenna 	case UMASS_WPROTO_BBB:
    381       1.78   gehenna 		sWire = "Bulk-Only";
    382       1.28  augustss 		break;
    383       1.17   thorpej 	default:
    384       1.78   gehenna 		sWire = "unknown";
    385       1.28  augustss 		break;
    386       1.17   thorpej 	}
    387       1.78   gehenna 
    388       1.78   gehenna 	switch (sc->sc_cmd) {
    389       1.78   gehenna 	case UMASS_CPROTO_RBC:
    390       1.78   gehenna 		sCommand = "RBC";
    391       1.78   gehenna 		break;
    392       1.78   gehenna 	case UMASS_CPROTO_SCSI:
    393       1.78   gehenna 		sCommand = "SCSI";
    394       1.28  augustss 		break;
    395       1.78   gehenna 	case UMASS_CPROTO_UFI:
    396       1.78   gehenna 		sCommand = "UFI";
    397       1.28  augustss 		break;
    398       1.78   gehenna 	case UMASS_CPROTO_ATAPI:
    399       1.78   gehenna 		sCommand = "ATAPI";
    400       1.32  augustss 		break;
    401       1.80  augustss 	case UMASS_CPROTO_ISD_ATA:
    402       1.80  augustss 		sCommand = "ISD-ATA";
    403       1.80  augustss 		break;
    404       1.17   thorpej 	default:
    405       1.78   gehenna 		sCommand = "unknown";
    406       1.32  augustss 		break;
    407       1.17   thorpej 	}
    408       1.78   gehenna 
    409  1.126.8.2      yamt 	aprint_normal_dev(self, "using %s over %s\n", sCommand, sWire);
    410        1.1   thorpej 
    411      1.104   mycroft 	if (quirk != NULL && quirk->uq_init != NULL) {
    412      1.104   mycroft 		err = (*quirk->uq_init)(sc);
    413      1.104   mycroft 		if (err) {
    414  1.126.8.2      yamt 			aprint_error_dev(self, "quirk init failed\n");
    415      1.104   mycroft 			umass_disco(sc);
    416      1.104   mycroft 			USB_ATTACH_ERROR_RETURN;
    417      1.104   mycroft 		}
    418      1.104   mycroft 	}
    419      1.104   mycroft 
    420        1.1   thorpej 	/*
    421       1.28  augustss 	 * In addition to the Control endpoint the following endpoints
    422       1.28  augustss 	 * are required:
    423       1.28  augustss 	 * a) bulk-in endpoint.
    424       1.28  augustss 	 * b) bulk-out endpoint.
    425       1.28  augustss 	 * and for Control/Bulk/Interrupt with CCI (CBI_I)
    426       1.28  augustss 	 * c) intr-in
    427        1.1   thorpej 	 *
    428        1.1   thorpej 	 * The endpoint addresses are not fixed, so we have to read them
    429        1.1   thorpej 	 * from the device descriptors of the current interface.
    430        1.1   thorpej 	 */
    431      1.124  drochner 	id = usbd_get_interface_descriptor(sc->sc_iface);
    432        1.1   thorpej 	for (i = 0 ; i < id->bNumEndpoints ; i++) {
    433       1.76   gehenna 		ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
    434       1.78   gehenna 		if (ed == NULL) {
    435  1.126.8.2      yamt 			aprint_error_dev(self,
    436  1.126.8.2      yamt 			    "could not read endpoint descriptor\n");
    437        1.1   thorpej 			USB_ATTACH_ERROR_RETURN;
    438        1.1   thorpej 		}
    439       1.11  augustss 		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN
    440        1.1   thorpej 		    && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
    441       1.73   gehenna 			sc->sc_epaddr[UMASS_BULKIN] = ed->bEndpointAddress;
    442       1.11  augustss 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT
    443        1.1   thorpej 		    && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
    444       1.73   gehenna 			sc->sc_epaddr[UMASS_BULKOUT] = ed->bEndpointAddress;
    445       1.78   gehenna 		} else if (sc->sc_wire == UMASS_WPROTO_CBI_I
    446       1.28  augustss 		    && UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN
    447       1.28  augustss 		    && (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) {
    448       1.73   gehenna 			sc->sc_epaddr[UMASS_INTRIN] = ed->bEndpointAddress;
    449       1.28  augustss #ifdef UMASS_DEBUG
    450       1.28  augustss 			if (UGETW(ed->wMaxPacketSize) > 2) {
    451       1.28  augustss 				DPRINTF(UDMASS_CBI, ("%s: intr size is %d\n",
    452       1.28  augustss 					USBDEVNAME(sc->sc_dev),
    453       1.28  augustss 					UGETW(ed->wMaxPacketSize)));
    454       1.28  augustss 			}
    455       1.28  augustss #endif
    456        1.1   thorpej 		}
    457        1.1   thorpej 	}
    458        1.1   thorpej 
    459       1.28  augustss 	/* check whether we found all the endpoints we need */
    460       1.73   gehenna 	if (!sc->sc_epaddr[UMASS_BULKIN] || !sc->sc_epaddr[UMASS_BULKOUT] ||
    461       1.78   gehenna 	    (sc->sc_wire == UMASS_WPROTO_CBI_I &&
    462       1.78   gehenna 	     !sc->sc_epaddr[UMASS_INTRIN])) {
    463  1.126.8.2      yamt 		aprint_error_dev(self, "endpoint not found %u/%u/%u\n",
    464  1.126.8.2      yamt 		       sc->sc_epaddr[UMASS_BULKIN],
    465      1.105  augustss 		       sc->sc_epaddr[UMASS_BULKOUT],
    466      1.105  augustss 		       sc->sc_epaddr[UMASS_INTRIN]);
    467       1.28  augustss 		USB_ATTACH_ERROR_RETURN;
    468       1.28  augustss 	}
    469       1.28  augustss 
    470        1.7   thorpej 	/*
    471        1.7   thorpej 	 * Get the maximum LUN supported by the device.
    472        1.7   thorpej 	 */
    473       1.98   mycroft 	if (sc->sc_wire == UMASS_WPROTO_BBB) {
    474       1.28  augustss 		err = umass_bbb_get_max_lun(sc, &sc->maxlun);
    475       1.28  augustss 		if (err) {
    476  1.126.8.2      yamt 			aprint_error_dev(self, "unable to get Max Lun: %s\n",
    477  1.126.8.2      yamt 			    usbd_errstr(err));
    478       1.28  augustss 			USB_ATTACH_ERROR_RETURN;
    479       1.28  augustss 		}
    480       1.99   mycroft 		if (sc->maxlun > 0)
    481       1.99   mycroft 			sc->sc_busquirks |= PQUIRK_FORCELUNS;
    482       1.28  augustss 	} else {
    483       1.28  augustss 		sc->maxlun = 0;
    484        1.7   thorpej 	}
    485        1.7   thorpej 
    486        1.1   thorpej 	/* Open the bulk-in and -out pipe */
    487      1.100   mycroft 	DPRINTF(UDMASS_USB, ("%s: opening iface %p epaddr %d for BULKOUT\n",
    488      1.100   mycroft 		USBDEVNAME(sc->sc_dev), sc->sc_iface,
    489      1.100   mycroft 		sc->sc_epaddr[UMASS_BULKOUT]));
    490       1.76   gehenna 	err = usbd_open_pipe(sc->sc_iface, sc->sc_epaddr[UMASS_BULKOUT],
    491       1.73   gehenna 				USBD_EXCLUSIVE_USE,
    492       1.73   gehenna 				&sc->sc_pipe[UMASS_BULKOUT]);
    493        1.1   thorpej 	if (err) {
    494  1.126.8.2      yamt 		aprint_error_dev(self, "cannot open %u-out pipe (bulk)\n",
    495  1.126.8.2      yamt 		    sc->sc_epaddr[UMASS_BULKOUT]);
    496       1.28  augustss 		umass_disco(sc);
    497        1.1   thorpej 		USB_ATTACH_ERROR_RETURN;
    498        1.1   thorpej 	}
    499      1.100   mycroft 	DPRINTF(UDMASS_USB, ("%s: opening iface %p epaddr %d for BULKIN\n",
    500      1.100   mycroft 		USBDEVNAME(sc->sc_dev), sc->sc_iface,
    501      1.100   mycroft 		sc->sc_epaddr[UMASS_BULKIN]));
    502       1.76   gehenna 	err = usbd_open_pipe(sc->sc_iface, sc->sc_epaddr[UMASS_BULKIN],
    503       1.73   gehenna 				USBD_EXCLUSIVE_USE, &sc->sc_pipe[UMASS_BULKIN]);
    504        1.1   thorpej 	if (err) {
    505  1.126.8.2      yamt 		aprint_error_dev(self, "could not open %u-in pipe (bulk)\n",
    506  1.126.8.2      yamt 		    sc->sc_epaddr[UMASS_BULKIN]);
    507       1.28  augustss 		umass_disco(sc);
    508        1.1   thorpej 		USB_ATTACH_ERROR_RETURN;
    509        1.1   thorpej 	}
    510       1.88  augustss 	/*
    511       1.28  augustss 	 * Open the intr-in pipe if the protocol is CBI with CCI.
    512       1.28  augustss 	 * Note: early versions of the Zip drive do have an interrupt pipe, but
    513       1.28  augustss 	 * this pipe is unused
    514       1.28  augustss 	 *
    515       1.28  augustss 	 * We do not open the interrupt pipe as an interrupt pipe, but as a
    516       1.28  augustss 	 * normal bulk endpoint. We send an IN transfer down the wire at the
    517       1.28  augustss 	 * appropriate time, because we know exactly when to expect data on
    518       1.28  augustss 	 * that endpoint. This saves bandwidth, but more important, makes the
    519       1.28  augustss 	 * code for handling the data on that endpoint simpler. No data
    520       1.28  augustss 	 * arriving concurrently.
    521       1.28  augustss 	 */
    522       1.78   gehenna 	if (sc->sc_wire == UMASS_WPROTO_CBI_I) {
    523      1.100   mycroft 		DPRINTF(UDMASS_USB, ("%s: opening iface %p epaddr %d for INTRIN\n",
    524      1.100   mycroft 			USBDEVNAME(sc->sc_dev), sc->sc_iface,
    525      1.100   mycroft 			sc->sc_epaddr[UMASS_INTRIN]));
    526       1.76   gehenna 		err = usbd_open_pipe(sc->sc_iface, sc->sc_epaddr[UMASS_INTRIN],
    527       1.73   gehenna 				USBD_EXCLUSIVE_USE, &sc->sc_pipe[UMASS_INTRIN]);
    528       1.28  augustss 		if (err) {
    529  1.126.8.2      yamt 			aprint_error_dev(self, "couldn't open %u-in (intr)\n",
    530  1.126.8.2      yamt 			    sc->sc_epaddr[UMASS_INTRIN]);
    531       1.28  augustss 			umass_disco(sc);
    532       1.28  augustss 			USB_ATTACH_ERROR_RETURN;
    533       1.28  augustss 		}
    534       1.28  augustss 	}
    535       1.28  augustss 
    536       1.28  augustss 	/* initialisation of generic part */
    537       1.28  augustss 	sc->transfer_state = TSTATE_IDLE;
    538       1.28  augustss 
    539       1.28  augustss 	/* request a sufficient number of xfer handles */
    540       1.28  augustss 	for (i = 0; i < XFER_NR; i++) {
    541       1.28  augustss 		sc->transfer_xfer[i] = usbd_alloc_xfer(uaa->device);
    542       1.92      tron 		if (sc->transfer_xfer[i] == NULL) {
    543  1.126.8.2      yamt 			aprint_error_dev(self, "Out of memory\n");
    544       1.28  augustss 			umass_disco(sc);
    545       1.28  augustss 			USB_ATTACH_ERROR_RETURN;
    546       1.28  augustss 		}
    547       1.28  augustss 	}
    548       1.28  augustss 	/* Allocate buffer for data transfer (it's huge). */
    549       1.78   gehenna 	switch (sc->sc_wire) {
    550       1.78   gehenna 	case UMASS_WPROTO_BBB:
    551       1.28  augustss 		bno = XFER_BBB_DATA;
    552       1.28  augustss 		goto dalloc;
    553       1.78   gehenna 	case UMASS_WPROTO_CBI:
    554       1.28  augustss 		bno = XFER_CBI_DATA;
    555       1.28  augustss 		goto dalloc;
    556       1.78   gehenna 	case UMASS_WPROTO_CBI_I:
    557       1.28  augustss 		bno = XFER_CBI_DATA;
    558       1.28  augustss 	dalloc:
    559       1.88  augustss 		sc->data_buffer = usbd_alloc_buffer(sc->transfer_xfer[bno],
    560       1.28  augustss 						    UMASS_MAX_TRANSFER_SIZE);
    561       1.28  augustss 		if (sc->data_buffer == NULL) {
    562  1.126.8.2      yamt 			aprint_error_dev(self, "no buffer memory\n");
    563       1.28  augustss 			umass_disco(sc);
    564       1.28  augustss 			USB_ATTACH_ERROR_RETURN;
    565       1.28  augustss 		}
    566       1.28  augustss 		break;
    567       1.28  augustss 	default:
    568       1.28  augustss 		break;
    569       1.28  augustss 	}
    570        1.1   thorpej 
    571       1.28  augustss 	/* Initialise the wire protocol specific methods */
    572       1.78   gehenna 	switch (sc->sc_wire) {
    573       1.78   gehenna 	case UMASS_WPROTO_BBB:
    574       1.75   gehenna 		sc->sc_methods = &umass_bbb_methods;
    575       1.78   gehenna 		break;
    576       1.78   gehenna 	case UMASS_WPROTO_CBI:
    577       1.78   gehenna 	case UMASS_WPROTO_CBI_I:
    578       1.75   gehenna 		sc->sc_methods = &umass_cbi_methods;
    579       1.78   gehenna 		break;
    580       1.78   gehenna 	default:
    581       1.78   gehenna 		umass_disco(sc);
    582       1.78   gehenna 		USB_ATTACH_ERROR_RETURN;
    583       1.78   gehenna 	}
    584       1.28  augustss 
    585       1.79  augustss 	error = 0;
    586       1.79  augustss 	switch (sc->sc_cmd) {
    587       1.79  augustss 	case UMASS_CPROTO_RBC:
    588       1.79  augustss 	case UMASS_CPROTO_SCSI:
    589       1.79  augustss #if NSCSIBUS > 0
    590       1.79  augustss 		error = umass_scsi_attach(sc);
    591       1.79  augustss #else
    592  1.126.8.2      yamt 		aprint_error_dev(self, "scsibus not configured\n");
    593       1.79  augustss #endif
    594       1.79  augustss 		break;
    595       1.79  augustss 
    596       1.79  augustss 	case UMASS_CPROTO_UFI:
    597       1.79  augustss 	case UMASS_CPROTO_ATAPI:
    598       1.79  augustss #if NATAPIBUS > 0
    599       1.79  augustss 		error = umass_atapi_attach(sc);
    600       1.79  augustss #else
    601  1.126.8.2      yamt 		aprint_error_dev(self, "atapibus not configured\n");
    602       1.80  augustss #endif
    603       1.80  augustss 		break;
    604       1.80  augustss 
    605       1.80  augustss 	case UMASS_CPROTO_ISD_ATA:
    606       1.80  augustss #if NWD > 0
    607       1.80  augustss 		error = umass_isdata_attach(sc);
    608       1.80  augustss #else
    609  1.126.8.2      yamt 		aprint_error_dev(self, "isdata not configured\n");
    610       1.79  augustss #endif
    611       1.79  augustss 		break;
    612       1.79  augustss 
    613       1.79  augustss 	default:
    614  1.126.8.2      yamt 		aprint_error_dev(self, "command protocol=0x%x not supported\n",
    615  1.126.8.2      yamt 		    sc->sc_cmd);
    616       1.28  augustss 		umass_disco(sc);
    617       1.28  augustss 		USB_ATTACH_ERROR_RETURN;
    618       1.28  augustss 	}
    619       1.79  augustss 	if (error) {
    620  1.126.8.2      yamt 		aprint_error_dev(self, "bus attach failed\n");
    621       1.79  augustss 		umass_disco(sc);
    622       1.79  augustss 		USB_ATTACH_ERROR_RETURN;
    623       1.79  augustss 	}
    624       1.79  augustss 
    625       1.79  augustss 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
    626       1.79  augustss 			   USBDEV(sc->sc_dev));
    627        1.1   thorpej 
    628      1.125  jmcneill 	if (!pmf_device_register(self, NULL, NULL))
    629      1.125  jmcneill 		aprint_error_dev(self, "couldn't establish power handler\n");
    630      1.125  jmcneill 
    631       1.28  augustss 	DPRINTF(UDMASS_GEN, ("%s: Attach finished\n", USBDEVNAME(sc->sc_dev)));
    632       1.28  augustss 
    633        1.1   thorpej 	USB_ATTACH_SUCCESS_RETURN;
    634        1.1   thorpej }
    635        1.1   thorpej 
    636       1.28  augustss USB_DETACH(umass)
    637       1.28  augustss {
    638       1.28  augustss 	USB_DETACH_START(umass, sc);
    639      1.105  augustss 	struct umassbus_softc *scbus;
    640       1.95  augustss 	int rv = 0, i, s;
    641        1.1   thorpej 
    642       1.28  augustss 	DPRINTF(UDMASS_USB, ("%s: detached\n", USBDEVNAME(sc->sc_dev)));
    643       1.28  augustss 
    644      1.125  jmcneill 	pmf_device_deregister(self);
    645      1.125  jmcneill 
    646       1.28  augustss 	/* Abort the pipes to wake up any waiting processes. */
    647       1.73   gehenna 	for (i = 0 ; i < UMASS_NEP ; i++) {
    648      1.117   nathanw 		if (sc->sc_pipe[i] != NULL)
    649       1.73   gehenna 			usbd_abort_pipe(sc->sc_pipe[i]);
    650       1.73   gehenna 	}
    651       1.28  augustss 
    652       1.42  augustss 	/* Do we really need reference counting?  Perhaps in ioctl() */
    653       1.28  augustss 	s = splusb();
    654       1.28  augustss 	if (--sc->sc_refcnt >= 0) {
    655       1.95  augustss #ifdef DIAGNOSTIC
    656  1.126.8.2      yamt 		aprint_normal_dev(self, "waiting for refcnt\n");
    657       1.95  augustss #endif
    658       1.28  augustss 		/* Wait for processes to go away. */
    659       1.28  augustss 		usb_detach_wait(USBDEV(sc->sc_dev));
    660       1.28  augustss 	}
    661       1.28  augustss 	splx(s);
    662       1.28  augustss 
    663      1.105  augustss 	scbus = sc->bus;
    664       1.79  augustss 	if (scbus != NULL) {
    665       1.79  augustss 		if (scbus->sc_child != NULL)
    666       1.79  augustss 			rv = config_detach(scbus->sc_child, flags);
    667       1.79  augustss 		free(scbus, M_DEVBUF);
    668       1.79  augustss 		sc->bus = NULL;
    669       1.79  augustss 	}
    670       1.56  augustss 
    671       1.28  augustss 	if (rv != 0)
    672       1.28  augustss 		return (rv);
    673       1.28  augustss 
    674       1.28  augustss 	umass_disco(sc);
    675       1.28  augustss 
    676       1.28  augustss 	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
    677       1.28  augustss 			   USBDEV(sc->sc_dev));
    678       1.28  augustss 
    679       1.79  augustss 	return (rv);
    680       1.79  augustss }
    681       1.79  augustss 
    682       1.79  augustss int
    683  1.126.8.2      yamt umass_activate(device_t dev, enum devact act)
    684       1.79  augustss {
    685  1.126.8.2      yamt 	struct umass_softc *sc = device_private(dev);
    686       1.79  augustss 	struct umassbus_softc *scbus = sc->bus;
    687       1.79  augustss 	int rv = 0;
    688       1.79  augustss 
    689       1.79  augustss 	DPRINTF(UDMASS_USB, ("%s: umass_activate: %d\n",
    690       1.79  augustss 	    USBDEVNAME(sc->sc_dev), act));
    691       1.79  augustss 
    692       1.79  augustss 	switch (act) {
    693       1.79  augustss 	case DVACT_ACTIVATE:
    694       1.79  augustss 		rv = EOPNOTSUPP;
    695       1.79  augustss 		break;
    696       1.79  augustss 
    697       1.79  augustss 	case DVACT_DEACTIVATE:
    698       1.79  augustss 		sc->sc_dying = 1;
    699       1.84  augustss 		if (scbus == NULL || scbus->sc_child == NULL)
    700       1.79  augustss 			break;
    701       1.79  augustss 		rv = config_deactivate(scbus->sc_child);
    702       1.79  augustss 		DPRINTF(UDMASS_USB, ("%s: umass_activate: child "
    703       1.79  augustss 		    "returned %d\n", USBDEVNAME(sc->sc_dev), rv));
    704       1.79  augustss 		break;
    705       1.79  augustss 	}
    706       1.79  augustss 	return (rv);
    707       1.28  augustss }
    708       1.28  augustss 
    709       1.28  augustss Static void
    710       1.38  augustss umass_disco(struct umass_softc *sc)
    711       1.88  augustss {
    712       1.28  augustss 	int i;
    713       1.28  augustss 
    714       1.28  augustss 	DPRINTF(UDMASS_GEN, ("umass_disco\n"));
    715       1.28  augustss 
    716       1.28  augustss 	/* Free the xfers. */
    717       1.28  augustss 	for (i = 0; i < XFER_NR; i++)
    718       1.28  augustss 		if (sc->transfer_xfer[i] != NULL) {
    719       1.28  augustss 			usbd_free_xfer(sc->transfer_xfer[i]);
    720       1.28  augustss 			sc->transfer_xfer[i] = NULL;
    721       1.28  augustss 		}
    722       1.28  augustss 
    723       1.28  augustss 	/* Remove all the pipes. */
    724       1.73   gehenna 	for (i = 0 ; i < UMASS_NEP ; i++) {
    725       1.93    toshii 		if (sc->sc_pipe[i] != NULL) {
    726       1.73   gehenna 			usbd_close_pipe(sc->sc_pipe[i]);
    727       1.93    toshii 			sc->sc_pipe[i] = NULL;
    728       1.93    toshii 		}
    729       1.73   gehenna 	}
    730       1.28  augustss }
    731        1.1   thorpej 
    732       1.28  augustss /*
    733       1.28  augustss  * Generic functions to handle transfers
    734       1.28  augustss  */
    735        1.9   thorpej 
    736       1.28  augustss Static usbd_status
    737       1.28  augustss umass_setup_transfer(struct umass_softc *sc, usbd_pipe_handle pipe,
    738       1.28  augustss 			void *buffer, int buflen, int flags,
    739       1.28  augustss 			usbd_xfer_handle xfer)
    740       1.28  augustss {
    741       1.28  augustss 	usbd_status err;
    742        1.9   thorpej 
    743       1.28  augustss 	if (sc->sc_dying)
    744       1.28  augustss 		return (USBD_IOERROR);
    745       1.18  augustss 
    746       1.28  augustss 	/* Initialiase a USB transfer and then schedule it */
    747       1.18  augustss 
    748       1.28  augustss 	usbd_setup_xfer(xfer, pipe, (void *)sc, buffer, buflen,
    749       1.75   gehenna 	    flags | sc->sc_xfer_flags, sc->timeout, sc->sc_methods->wire_state);
    750       1.18  augustss 
    751       1.28  augustss 	err = usbd_transfer(xfer);
    752       1.28  augustss 	DPRINTF(UDMASS_XFER,("%s: start xfer buffer=%p buflen=%d flags=0x%x "
    753       1.28  augustss 	    "timeout=%d\n", USBDEVNAME(sc->sc_dev),
    754       1.28  augustss 	    buffer, buflen, flags | sc->sc_xfer_flags, sc->timeout));
    755       1.28  augustss 	if (err && err != USBD_IN_PROGRESS) {
    756       1.28  augustss 		DPRINTF(UDMASS_BBB, ("%s: failed to setup transfer, %s\n",
    757       1.28  augustss 			USBDEVNAME(sc->sc_dev), usbd_errstr(err)));
    758       1.28  augustss 		return (err);
    759        1.9   thorpej 	}
    760       1.24  augustss 
    761       1.28  augustss 	return (USBD_NORMAL_COMPLETION);
    762        1.1   thorpej }
    763        1.1   thorpej 
    764        1.1   thorpej 
    765       1.28  augustss Static usbd_status
    766       1.74   gehenna umass_setup_ctrl_transfer(struct umass_softc *sc, usb_device_request_t *req,
    767       1.74   gehenna 	 void *buffer, int buflen, int flags, usbd_xfer_handle xfer)
    768        1.1   thorpej {
    769        1.1   thorpej 	usbd_status err;
    770        1.1   thorpej 
    771       1.28  augustss 	if (sc->sc_dying)
    772       1.28  augustss 		return (USBD_IOERROR);
    773        1.1   thorpej 
    774       1.28  augustss 	/* Initialiase a USB control transfer and then schedule it */
    775        1.1   thorpej 
    776       1.75   gehenna 	usbd_setup_default_xfer(xfer, sc->sc_udev, (void *) sc, sc->timeout,
    777       1.75   gehenna 		req, buffer, buflen, flags, sc->sc_methods->wire_state);
    778        1.1   thorpej 
    779       1.28  augustss 	err = usbd_transfer(xfer);
    780       1.28  augustss 	if (err && err != USBD_IN_PROGRESS) {
    781       1.28  augustss 		DPRINTF(UDMASS_BBB, ("%s: failed to setup ctrl transfer, %s\n",
    782       1.28  augustss 			 USBDEVNAME(sc->sc_dev), usbd_errstr(err)));
    783        1.1   thorpej 
    784       1.28  augustss 		/* do not reset, as this would make us loop */
    785       1.28  augustss 		return (err);
    786       1.28  augustss 	}
    787        1.1   thorpej 
    788       1.28  augustss 	return (USBD_NORMAL_COMPLETION);
    789        1.1   thorpej }
    790        1.1   thorpej 
    791       1.28  augustss Static void
    792       1.73   gehenna umass_clear_endpoint_stall(struct umass_softc *sc, int endpt,
    793       1.73   gehenna 	usbd_xfer_handle xfer)
    794        1.7   thorpej {
    795       1.28  augustss 	if (sc->sc_dying)
    796       1.28  augustss 		return;
    797        1.1   thorpej 
    798       1.28  augustss 	DPRINTF(UDMASS_BBB, ("%s: Clear endpoint 0x%02x stall\n",
    799       1.85  augustss 		USBDEVNAME(sc->sc_dev), sc->sc_epaddr[endpt]));
    800        1.7   thorpej 
    801       1.73   gehenna 	usbd_clear_endpoint_toggle(sc->sc_pipe[endpt]);
    802        1.7   thorpej 
    803       1.78   gehenna 	sc->sc_req.bmRequestType = UT_WRITE_ENDPOINT;
    804       1.78   gehenna 	sc->sc_req.bRequest = UR_CLEAR_FEATURE;
    805       1.78   gehenna 	USETW(sc->sc_req.wValue, UF_ENDPOINT_HALT);
    806       1.78   gehenna 	USETW(sc->sc_req.wIndex, sc->sc_epaddr[endpt]);
    807       1.78   gehenna 	USETW(sc->sc_req.wLength, 0);
    808       1.78   gehenna 	umass_setup_ctrl_transfer(sc, &sc->sc_req, NULL, 0, 0, xfer);
    809       1.28  augustss }
    810       1.15   thorpej 
    811       1.29     enami #if 0
    812       1.28  augustss Static void
    813       1.28  augustss umass_reset(struct umass_softc *sc, transfer_cb_f cb, void *priv)
    814       1.28  augustss {
    815       1.28  augustss 	sc->transfer_cb = cb;
    816       1.28  augustss 	sc->transfer_priv = priv;
    817        1.1   thorpej 
    818       1.28  augustss 	/* The reset is a forced reset, so no error (yet) */
    819       1.28  augustss 	sc->reset(sc, STATUS_CMD_OK);
    820        1.7   thorpej }
    821       1.29     enami #endif
    822        1.1   thorpej 
    823       1.28  augustss /*
    824       1.28  augustss  * Bulk protocol specific functions
    825       1.28  augustss  */
    826       1.28  augustss 
    827       1.28  augustss Static void
    828       1.28  augustss umass_bbb_reset(struct umass_softc *sc, int status)
    829        1.1   thorpej {
    830       1.78   gehenna 	KASSERT(sc->sc_wire & UMASS_WPROTO_BBB,
    831       1.78   gehenna 		("sc->sc_wire == 0x%02x wrong for umass_bbb_reset\n",
    832       1.78   gehenna 		sc->sc_wire));
    833       1.28  augustss 
    834       1.28  augustss 	if (sc->sc_dying)
    835       1.28  augustss 		return;
    836        1.1   thorpej 
    837        1.1   thorpej 	/*
    838        1.1   thorpej 	 * Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class)
    839        1.1   thorpej 	 *
    840        1.1   thorpej 	 * For Reset Recovery the host shall issue in the following order:
    841        1.1   thorpej 	 * a) a Bulk-Only Mass Storage Reset
    842        1.1   thorpej 	 * b) a Clear Feature HALT to the Bulk-In endpoint
    843        1.1   thorpej 	 * c) a Clear Feature HALT to the Bulk-Out endpoint
    844       1.28  augustss 	 *
    845       1.28  augustss 	 * This is done in 3 steps, states:
    846       1.28  augustss 	 * TSTATE_BBB_RESET1
    847       1.28  augustss 	 * TSTATE_BBB_RESET2
    848       1.28  augustss 	 * TSTATE_BBB_RESET3
    849       1.28  augustss 	 *
    850       1.28  augustss 	 * If the reset doesn't succeed, the device should be port reset.
    851        1.1   thorpej 	 */
    852        1.1   thorpej 
    853       1.28  augustss 	DPRINTF(UDMASS_BBB, ("%s: Bulk Reset\n",
    854        1.1   thorpej 		USBDEVNAME(sc->sc_dev)));
    855       1.88  augustss 
    856       1.28  augustss 	sc->transfer_state = TSTATE_BBB_RESET1;
    857       1.28  augustss 	sc->transfer_status = status;
    858        1.1   thorpej 
    859       1.28  augustss 	/* reset is a class specific interface write */
    860       1.78   gehenna 	sc->sc_req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
    861       1.78   gehenna 	sc->sc_req.bRequest = UR_BBB_RESET;
    862       1.78   gehenna 	USETW(sc->sc_req.wValue, 0);
    863       1.78   gehenna 	USETW(sc->sc_req.wIndex, sc->sc_ifaceno);
    864       1.78   gehenna 	USETW(sc->sc_req.wLength, 0);
    865       1.78   gehenna 	umass_setup_ctrl_transfer(sc, &sc->sc_req, NULL, 0, 0,
    866       1.28  augustss 				  sc->transfer_xfer[XFER_BBB_RESET1]);
    867       1.28  augustss }
    868       1.28  augustss 
    869       1.28  augustss Static void
    870       1.28  augustss umass_bbb_transfer(struct umass_softc *sc, int lun, void *cmd, int cmdlen,
    871       1.67  augustss 		   void *data, int datalen, int dir, u_int timeout,
    872       1.75   gehenna 		   umass_callback cb, void *priv)
    873       1.28  augustss {
    874       1.28  augustss 	static int dCBWtag = 42;	/* unique for CBW of transfer */
    875        1.1   thorpej 
    876       1.28  augustss 	DPRINTF(UDMASS_BBB,("%s: umass_bbb_transfer cmd=0x%02x\n",
    877       1.87  augustss 		USBDEVNAME(sc->sc_dev), *(u_char *)cmd));
    878        1.1   thorpej 
    879       1.78   gehenna 	KASSERT(sc->sc_wire & UMASS_WPROTO_BBB,
    880       1.78   gehenna 		("sc->sc_wire == 0x%02x wrong for umass_bbb_transfer\n",
    881       1.78   gehenna 		sc->sc_wire));
    882        1.1   thorpej 
    883      1.116   mycroft 	if (sc->sc_dying)
    884      1.116   mycroft 		return;
    885      1.116   mycroft 
    886       1.67  augustss 	/* Be a little generous. */
    887       1.67  augustss 	sc->timeout = timeout + USBD_DEFAULT_TIMEOUT;
    888       1.67  augustss 
    889        1.1   thorpej 	/*
    890       1.28  augustss 	 * Do a Bulk-Only transfer with cmdlen bytes from cmd, possibly
    891       1.28  augustss 	 * a data phase of datalen bytes from/to the device and finally a
    892       1.28  augustss 	 * csw read phase.
    893       1.28  augustss 	 * If the data direction was inbound a maximum of datalen bytes
    894       1.28  augustss 	 * is stored in the buffer pointed to by data.
    895       1.28  augustss 	 *
    896       1.28  augustss 	 * umass_bbb_transfer initialises the transfer and lets the state
    897       1.88  augustss 	 * machine in umass_bbb_state handle the completion. It uses the
    898       1.28  augustss 	 * following states:
    899       1.28  augustss 	 * TSTATE_BBB_COMMAND
    900       1.28  augustss 	 *   -> TSTATE_BBB_DATA
    901       1.28  augustss 	 *   -> TSTATE_BBB_STATUS
    902       1.28  augustss 	 *   -> TSTATE_BBB_STATUS2
    903       1.28  augustss 	 *   -> TSTATE_BBB_IDLE
    904       1.28  augustss 	 *
    905       1.28  augustss 	 * An error in any of those states will invoke
    906       1.28  augustss 	 * umass_bbb_reset.
    907        1.1   thorpej 	 */
    908        1.1   thorpej 
    909        1.1   thorpej 	/* check the given arguments */
    910       1.28  augustss 	KASSERT(datalen == 0 || data != NULL,
    911       1.28  augustss 		("%s: datalen > 0, but no buffer",USBDEVNAME(sc->sc_dev)));
    912       1.28  augustss 	KASSERT(cmdlen <= CBWCDBLENGTH,
    913       1.28  augustss 		("%s: cmdlen exceeds CDB length in CBW (%d > %d)",
    914       1.28  augustss 			USBDEVNAME(sc->sc_dev), cmdlen, CBWCDBLENGTH));
    915       1.28  augustss 	KASSERT(dir == DIR_NONE || datalen > 0,
    916       1.28  augustss 		("%s: datalen == 0 while direction is not NONE\n",
    917        1.1   thorpej 			USBDEVNAME(sc->sc_dev)));
    918       1.28  augustss 	KASSERT(datalen == 0 || dir != DIR_NONE,
    919       1.28  augustss 		("%s: direction is NONE while datalen is not zero\n",
    920       1.28  augustss 			USBDEVNAME(sc->sc_dev)));
    921       1.28  augustss 	KASSERT(sizeof(umass_bbb_cbw_t) == UMASS_BBB_CBW_SIZE,
    922       1.28  augustss 		("%s: CBW struct does not have the right size (%d vs. %d)\n",
    923       1.28  augustss 			USBDEVNAME(sc->sc_dev),
    924       1.28  augustss 			sizeof(umass_bbb_cbw_t), UMASS_BBB_CBW_SIZE));
    925       1.28  augustss 	KASSERT(sizeof(umass_bbb_csw_t) == UMASS_BBB_CSW_SIZE,
    926       1.28  augustss 		("%s: CSW struct does not have the right size (%d vs. %d)\n",
    927       1.28  augustss 			USBDEVNAME(sc->sc_dev),
    928       1.28  augustss 			sizeof(umass_bbb_csw_t), UMASS_BBB_CSW_SIZE));
    929        1.1   thorpej 
    930        1.1   thorpej 	/*
    931       1.28  augustss 	 * Determine the direction of the data transfer and the length.
    932        1.1   thorpej 	 *
    933        1.1   thorpej 	 * dCBWDataTransferLength (datalen) :
    934        1.1   thorpej 	 *   This field indicates the number of bytes of data that the host
    935        1.1   thorpej 	 *   intends to transfer on the IN or OUT Bulk endpoint(as indicated by
    936        1.1   thorpej 	 *   the Direction bit) during the execution of this command. If this
    937        1.1   thorpej 	 *   field is set to 0, the device will expect that no data will be
    938        1.1   thorpej 	 *   transferred IN or OUT during this command, regardless of the value
    939        1.1   thorpej 	 *   of the Direction bit defined in dCBWFlags.
    940        1.1   thorpej 	 *
    941        1.1   thorpej 	 * dCBWFlags (dir) :
    942        1.1   thorpej 	 *   The bits of the Flags field are defined as follows:
    943       1.28  augustss 	 *     Bits 0-6	 reserved
    944       1.28  augustss 	 *     Bit  7	 Direction - this bit shall be ignored if the
    945       1.28  augustss 	 *			     dCBWDataTransferLength field is zero.
    946       1.28  augustss 	 *		 0 = data Out from host to device
    947       1.28  augustss 	 *		 1 = data In from device to host
    948        1.1   thorpej 	 */
    949        1.1   thorpej 
    950       1.28  augustss 	/* Fill in the Command Block Wrapper */
    951       1.28  augustss 	USETDW(sc->cbw.dCBWSignature, CBWSIGNATURE);
    952       1.28  augustss 	USETDW(sc->cbw.dCBWTag, dCBWtag);
    953       1.28  augustss 	dCBWtag++;	/* cannot be done in macro (it will be done 4 times) */
    954       1.28  augustss 	USETDW(sc->cbw.dCBWDataTransferLength, datalen);
    955       1.28  augustss 	/* DIR_NONE is treated as DIR_OUT (0x00) */
    956       1.28  augustss 	sc->cbw.bCBWFlags = (dir == DIR_IN? CBWFLAGS_IN:CBWFLAGS_OUT);
    957       1.28  augustss 	sc->cbw.bCBWLUN = lun;
    958       1.28  augustss 	sc->cbw.bCDBLength = cmdlen;
    959       1.69   gehenna 	memcpy(sc->cbw.CBWCDB, cmd, cmdlen);
    960       1.28  augustss 
    961       1.28  augustss 	DIF(UDMASS_BBB, umass_bbb_dump_cbw(sc, &sc->cbw));
    962       1.28  augustss 
    963       1.28  augustss 	/* store the details for the data transfer phase */
    964       1.28  augustss 	sc->transfer_dir = dir;
    965       1.28  augustss 	sc->transfer_data = data;
    966       1.28  augustss 	sc->transfer_datalen = datalen;
    967       1.28  augustss 	sc->transfer_actlen = 0;
    968       1.28  augustss 	sc->transfer_cb = cb;
    969       1.28  augustss 	sc->transfer_priv = priv;
    970       1.28  augustss 	sc->transfer_status = STATUS_CMD_OK;
    971        1.1   thorpej 
    972       1.28  augustss 	/* move from idle to the command state */
    973       1.28  augustss 	sc->transfer_state = TSTATE_BBB_COMMAND;
    974        1.1   thorpej 
    975        1.1   thorpej 	/* Send the CBW from host to device via bulk-out endpoint. */
    976       1.73   gehenna 	if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKOUT],
    977       1.28  augustss 			&sc->cbw, UMASS_BBB_CBW_SIZE, 0,
    978       1.28  augustss 			sc->transfer_xfer[XFER_BBB_CBW])) {
    979       1.28  augustss 		umass_bbb_reset(sc, STATUS_WIRE_FAILED);
    980        1.1   thorpej 	}
    981       1.28  augustss }
    982       1.28  augustss 
    983        1.1   thorpej 
    984       1.28  augustss Static void
    985       1.28  augustss umass_bbb_state(usbd_xfer_handle xfer, usbd_private_handle priv,
    986       1.28  augustss 		usbd_status err)
    987       1.28  augustss {
    988       1.28  augustss 	struct umass_softc *sc = (struct umass_softc *) priv;
    989       1.28  augustss 	usbd_xfer_handle next_xfer;
    990       1.28  augustss 
    991       1.78   gehenna 	KASSERT(sc->sc_wire & UMASS_WPROTO_BBB,
    992       1.78   gehenna 		("sc->sc_wire == 0x%02x wrong for umass_bbb_state\n",
    993       1.78   gehenna 		sc->sc_wire));
    994       1.28  augustss 
    995       1.28  augustss 	if (sc->sc_dying)
    996       1.28  augustss 		return;
    997        1.1   thorpej 
    998        1.1   thorpej 	/*
    999       1.28  augustss 	 * State handling for BBB transfers.
   1000       1.28  augustss 	 *
   1001       1.28  augustss 	 * The subroutine is rather long. It steps through the states given in
   1002       1.28  augustss 	 * Annex A of the Bulk-Only specification.
   1003       1.28  augustss 	 * Each state first does the error handling of the previous transfer
   1004       1.28  augustss 	 * and then prepares the next transfer.
   1005       1.28  augustss 	 * Each transfer is done asynchroneously so after the request/transfer
   1006       1.28  augustss 	 * has been submitted you will find a 'return;'.
   1007        1.1   thorpej 	 */
   1008        1.1   thorpej 
   1009       1.28  augustss 	DPRINTF(UDMASS_BBB, ("%s: Handling BBB state %d (%s), xfer=%p, %s\n",
   1010       1.28  augustss 		USBDEVNAME(sc->sc_dev), sc->transfer_state,
   1011       1.28  augustss 		states[sc->transfer_state], xfer, usbd_errstr(err)));
   1012       1.28  augustss 
   1013       1.28  augustss 	switch (sc->transfer_state) {
   1014       1.28  augustss 
   1015       1.28  augustss 	/***** Bulk Transfer *****/
   1016       1.28  augustss 	case TSTATE_BBB_COMMAND:
   1017       1.28  augustss 		/* Command transport phase, error handling */
   1018       1.28  augustss 		if (err) {
   1019       1.28  augustss 			DPRINTF(UDMASS_BBB, ("%s: failed to send CBW\n",
   1020       1.28  augustss 				USBDEVNAME(sc->sc_dev)));
   1021       1.28  augustss 			/* If the device detects that the CBW is invalid, then
   1022       1.28  augustss 			 * the device may STALL both bulk endpoints and require
   1023       1.28  augustss 			 * a Bulk-Reset
   1024       1.28  augustss 			 */
   1025       1.28  augustss 			umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1026       1.28  augustss 			return;
   1027       1.28  augustss 		}
   1028       1.28  augustss 
   1029       1.28  augustss 		/* Data transport phase, setup transfer */
   1030       1.28  augustss 		sc->transfer_state = TSTATE_BBB_DATA;
   1031       1.28  augustss 		if (sc->transfer_dir == DIR_IN) {
   1032       1.73   gehenna 			if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKIN],
   1033       1.28  augustss 					sc->data_buffer, sc->transfer_datalen,
   1034       1.28  augustss 					USBD_SHORT_XFER_OK | USBD_NO_COPY,
   1035       1.28  augustss 					sc->transfer_xfer[XFER_BBB_DATA]))
   1036       1.28  augustss 				umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1037       1.28  augustss 
   1038       1.28  augustss 			return;
   1039       1.28  augustss 		} else if (sc->transfer_dir == DIR_OUT) {
   1040       1.88  augustss 			memcpy(sc->data_buffer, sc->transfer_data,
   1041       1.28  augustss 			       sc->transfer_datalen);
   1042       1.73   gehenna 			if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKOUT],
   1043       1.28  augustss 					sc->data_buffer, sc->transfer_datalen,
   1044       1.28  augustss 					USBD_NO_COPY,/* fixed length transfer */
   1045       1.28  augustss 					sc->transfer_xfer[XFER_BBB_DATA]))
   1046       1.28  augustss 				umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1047        1.1   thorpej 
   1048       1.28  augustss 			return;
   1049       1.28  augustss 		} else {
   1050       1.28  augustss 			DPRINTF(UDMASS_BBB, ("%s: no data phase\n",
   1051       1.28  augustss 				USBDEVNAME(sc->sc_dev)));
   1052       1.28  augustss 		}
   1053        1.1   thorpej 
   1054       1.28  augustss 		/* FALLTHROUGH if no data phase, err == 0 */
   1055       1.28  augustss 	case TSTATE_BBB_DATA:
   1056      1.103   mycroft 		/* Command transport phase error handling (ignored if no data
   1057       1.28  augustss 		 * phase (fallthrough from previous state)) */
   1058       1.28  augustss 		if (sc->transfer_dir != DIR_NONE) {
   1059       1.28  augustss 			/* retrieve the length of the transfer that was done */
   1060       1.28  augustss 			usbd_get_xfer_status(xfer, NULL, NULL,
   1061      1.103   mycroft 			     &sc->transfer_actlen, NULL);
   1062      1.103   mycroft 			DPRINTF(UDMASS_BBB, ("%s: BBB_DATA actlen=%d\n",
   1063      1.103   mycroft 				USBDEVNAME(sc->sc_dev), sc->transfer_actlen));
   1064       1.28  augustss 
   1065       1.28  augustss 			if (err) {
   1066       1.65  augustss 				DPRINTF(UDMASS_BBB, ("%s: Data-%s %d failed, "
   1067       1.28  augustss 					"%s\n", USBDEVNAME(sc->sc_dev),
   1068       1.28  augustss 					(sc->transfer_dir == DIR_IN?"in":"out"),
   1069       1.28  augustss 					sc->transfer_datalen,usbd_errstr(err)));
   1070       1.28  augustss 
   1071       1.28  augustss 				if (err == USBD_STALLED) {
   1072       1.70   gehenna 					sc->transfer_state = TSTATE_BBB_DCLEAR;
   1073       1.28  augustss 					umass_clear_endpoint_stall(sc,
   1074       1.28  augustss 					  (sc->transfer_dir == DIR_IN?
   1075       1.73   gehenna 					    UMASS_BULKIN:UMASS_BULKOUT),
   1076       1.28  augustss 					  sc->transfer_xfer[XFER_BBB_DCLEAR]);
   1077       1.28  augustss 				} else {
   1078       1.28  augustss 					/* Unless the error is a pipe stall the
   1079       1.28  augustss 					 * error is fatal.
   1080       1.28  augustss 					 */
   1081       1.28  augustss 					umass_bbb_reset(sc,STATUS_WIRE_FAILED);
   1082       1.28  augustss 				}
   1083      1.103   mycroft 				return;
   1084       1.28  augustss 			}
   1085       1.28  augustss 		}
   1086        1.1   thorpej 
   1087      1.101   mycroft 		/* FALLTHROUGH, err == 0 (no data phase or successful) */
   1088      1.101   mycroft 	case TSTATE_BBB_DCLEAR: /* stall clear after data phase */
   1089       1.28  augustss 		if (sc->transfer_dir == DIR_IN)
   1090       1.28  augustss 			memcpy(sc->transfer_data, sc->data_buffer,
   1091       1.28  augustss 			       sc->transfer_actlen);
   1092       1.28  augustss 
   1093       1.28  augustss 		DIF(UDMASS_BBB, if (sc->transfer_dir == DIR_IN)
   1094       1.28  augustss 					umass_dump_buffer(sc, sc->transfer_data,
   1095       1.28  augustss 						sc->transfer_datalen, 48));
   1096       1.28  augustss 
   1097       1.94       wiz 		/* FALLTHROUGH, err == 0 (no data phase or successful) */
   1098       1.28  augustss 	case TSTATE_BBB_SCLEAR: /* stall clear after status phase */
   1099       1.28  augustss 		/* Reading of CSW after bulk stall condition in data phase
   1100       1.28  augustss 		 * (TSTATE_BBB_DATA2) or bulk-in stall condition after
   1101       1.28  augustss 		 * reading CSW (TSTATE_BBB_SCLEAR).
   1102       1.94       wiz 		 * In the case of no data phase or successful data phase,
   1103       1.28  augustss 		 * err == 0 and the following if block is passed.
   1104       1.28  augustss 		 */
   1105       1.28  augustss 		if (err) {	/* should not occur */
   1106      1.103   mycroft 			printf("%s: BBB bulk-%s stall clear failed, %s\n",
   1107      1.103   mycroft 			    USBDEVNAME(sc->sc_dev),
   1108      1.103   mycroft 			    (sc->transfer_dir == DIR_IN? "in":"out"),
   1109      1.103   mycroft 			    usbd_errstr(err));
   1110       1.28  augustss 			umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1111       1.28  augustss 			return;
   1112       1.28  augustss 		}
   1113       1.88  augustss 
   1114       1.28  augustss 		/* Status transport phase, setup transfer */
   1115       1.28  augustss 		if (sc->transfer_state == TSTATE_BBB_COMMAND ||
   1116       1.28  augustss 		    sc->transfer_state == TSTATE_BBB_DATA ||
   1117       1.28  augustss 		    sc->transfer_state == TSTATE_BBB_DCLEAR) {
   1118       1.94       wiz 			/* After no data phase, successful data phase and
   1119       1.28  augustss 			 * after clearing bulk-in/-out stall condition
   1120       1.28  augustss 			 */
   1121       1.28  augustss 			sc->transfer_state = TSTATE_BBB_STATUS1;
   1122       1.28  augustss 			next_xfer = sc->transfer_xfer[XFER_BBB_CSW1];
   1123       1.28  augustss 		} else {
   1124       1.28  augustss 			/* After first attempt of fetching CSW */
   1125       1.28  augustss 			sc->transfer_state = TSTATE_BBB_STATUS2;
   1126       1.28  augustss 			next_xfer = sc->transfer_xfer[XFER_BBB_CSW2];
   1127        1.1   thorpej 		}
   1128        1.1   thorpej 
   1129       1.28  augustss 		/* Read the Command Status Wrapper via bulk-in endpoint. */
   1130       1.73   gehenna 		if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKIN],
   1131       1.73   gehenna 			&sc->csw, UMASS_BBB_CSW_SIZE, 0, next_xfer)) {
   1132       1.28  augustss 			umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1133       1.28  augustss 			return;
   1134       1.28  augustss 		}
   1135        1.1   thorpej 
   1136       1.28  augustss 		return;
   1137       1.28  augustss 	case TSTATE_BBB_STATUS1:	/* first attempt */
   1138       1.28  augustss 	case TSTATE_BBB_STATUS2:	/* second attempt */
   1139       1.28  augustss 		/* Status transfer, error handling */
   1140        1.1   thorpej 		if (err) {
   1141       1.28  augustss 			DPRINTF(UDMASS_BBB, ("%s: Failed to read CSW, %s%s\n",
   1142       1.28  augustss 				USBDEVNAME(sc->sc_dev), usbd_errstr(err),
   1143       1.28  augustss 				(sc->transfer_state == TSTATE_BBB_STATUS1?
   1144       1.28  augustss 					", retrying":"")));
   1145       1.28  augustss 
   1146       1.28  augustss 			/* If this was the first attempt at fetching the CSW
   1147       1.28  augustss 			 * retry it, otherwise fail.
   1148       1.28  augustss 			 */
   1149       1.28  augustss 			if (sc->transfer_state == TSTATE_BBB_STATUS1) {
   1150       1.70   gehenna 				sc->transfer_state = TSTATE_BBB_SCLEAR;
   1151       1.73   gehenna 				umass_clear_endpoint_stall(sc, UMASS_BULKIN,
   1152       1.66  augustss 				    sc->transfer_xfer[XFER_BBB_SCLEAR]);
   1153       1.28  augustss 				return;
   1154       1.28  augustss 			} else {
   1155       1.28  augustss 				umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1156       1.28  augustss 				return;
   1157       1.28  augustss 			}
   1158       1.28  augustss 		}
   1159       1.28  augustss 
   1160       1.28  augustss 		DIF(UDMASS_BBB, umass_bbb_dump_csw(sc, &sc->csw));
   1161       1.68  augustss 
   1162       1.68  augustss 		/* Translate weird command-status signatures. */
   1163       1.78   gehenna 		if ((sc->sc_quirks & UMASS_QUIRK_WRONG_CSWSIG) &&
   1164       1.68  augustss 		    UGETDW(sc->csw.dCSWSignature) == CSWSIGNATURE_OLYMPUS_C1)
   1165       1.68  augustss 			USETDW(sc->csw.dCSWSignature, CSWSIGNATURE);
   1166       1.91       erh 
   1167       1.91       erh 		/* Translate invalid command-status tags */
   1168       1.91       erh 		if (sc->sc_quirks & UMASS_QUIRK_WRONG_CSWTAG)
   1169       1.91       erh 			USETDW(sc->csw.dCSWTag, UGETDW(sc->cbw.dCBWTag));
   1170       1.28  augustss 
   1171       1.28  augustss 		/* Check CSW and handle any error */
   1172       1.28  augustss 		if (UGETDW(sc->csw.dCSWSignature) != CSWSIGNATURE) {
   1173       1.28  augustss 			/* Invalid CSW: Wrong signature or wrong tag might
   1174       1.28  augustss 			 * indicate that the device is confused -> reset it.
   1175       1.28  augustss 			 */
   1176       1.28  augustss 			printf("%s: Invalid CSW: sig 0x%08x should be 0x%08x\n",
   1177       1.28  augustss 				USBDEVNAME(sc->sc_dev),
   1178       1.28  augustss 				UGETDW(sc->csw.dCSWSignature),
   1179       1.28  augustss 				CSWSIGNATURE);
   1180       1.28  augustss 
   1181       1.28  augustss 			umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1182       1.28  augustss 			return;
   1183       1.28  augustss 		} else if (UGETDW(sc->csw.dCSWTag)
   1184       1.28  augustss 				!= UGETDW(sc->cbw.dCBWTag)) {
   1185       1.28  augustss 			printf("%s: Invalid CSW: tag %d should be %d\n",
   1186       1.28  augustss 				USBDEVNAME(sc->sc_dev),
   1187       1.28  augustss 				UGETDW(sc->csw.dCSWTag),
   1188       1.28  augustss 				UGETDW(sc->cbw.dCBWTag));
   1189       1.28  augustss 
   1190       1.28  augustss 			umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1191       1.28  augustss 			return;
   1192       1.28  augustss 
   1193       1.28  augustss 		/* CSW is valid here */
   1194       1.28  augustss 		} else if (sc->csw.bCSWStatus > CSWSTATUS_PHASE) {
   1195       1.28  augustss 			printf("%s: Invalid CSW: status %d > %d\n",
   1196       1.28  augustss 				USBDEVNAME(sc->sc_dev),
   1197       1.28  augustss 				sc->csw.bCSWStatus,
   1198       1.28  augustss 				CSWSTATUS_PHASE);
   1199       1.28  augustss 
   1200       1.28  augustss 			umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1201       1.28  augustss 			return;
   1202       1.28  augustss 		} else if (sc->csw.bCSWStatus == CSWSTATUS_PHASE) {
   1203       1.28  augustss 			printf("%s: Phase Error, residue = %d\n",
   1204       1.28  augustss 				USBDEVNAME(sc->sc_dev),
   1205       1.28  augustss 				UGETDW(sc->csw.dCSWDataResidue));
   1206       1.88  augustss 
   1207       1.28  augustss 			umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1208       1.28  augustss 			return;
   1209       1.28  augustss 
   1210       1.28  augustss 		} else if (sc->transfer_actlen > sc->transfer_datalen) {
   1211       1.28  augustss 			/* Buffer overrun! Don't let this go by unnoticed */
   1212       1.89    provos 			panic("%s: transferred %d bytes instead of %d bytes",
   1213       1.28  augustss 				USBDEVNAME(sc->sc_dev),
   1214       1.28  augustss 				sc->transfer_actlen, sc->transfer_datalen);
   1215       1.62  augustss #if 0
   1216       1.28  augustss 		} else if (sc->transfer_datalen - sc->transfer_actlen
   1217       1.28  augustss 			   != UGETDW(sc->csw.dCSWDataResidue)) {
   1218       1.28  augustss 			DPRINTF(UDMASS_BBB, ("%s: actlen=%d != residue=%d\n",
   1219        1.1   thorpej 				USBDEVNAME(sc->sc_dev),
   1220       1.28  augustss 				sc->transfer_datalen - sc->transfer_actlen,
   1221       1.28  augustss 				UGETDW(sc->csw.dCSWDataResidue)));
   1222       1.28  augustss 
   1223       1.28  augustss 			umass_bbb_reset(sc, STATUS_WIRE_FAILED);
   1224       1.28  augustss 			return;
   1225       1.62  augustss #endif
   1226       1.28  augustss 		} else if (sc->csw.bCSWStatus == CSWSTATUS_FAILED) {
   1227       1.28  augustss 			DPRINTF(UDMASS_BBB, ("%s: Command Failed, res = %d\n",
   1228        1.1   thorpej 				USBDEVNAME(sc->sc_dev),
   1229       1.28  augustss 				UGETDW(sc->csw.dCSWDataResidue)));
   1230       1.28  augustss 
   1231       1.28  augustss 			/* SCSI command failed but transfer was succesful */
   1232       1.28  augustss 			sc->transfer_state = TSTATE_IDLE;
   1233       1.28  augustss 			sc->transfer_cb(sc, sc->transfer_priv,
   1234       1.28  augustss 					UGETDW(sc->csw.dCSWDataResidue),
   1235       1.28  augustss 					STATUS_CMD_FAILED);
   1236       1.28  augustss 
   1237       1.28  augustss 			return;
   1238       1.28  augustss 
   1239       1.28  augustss 		} else {	/* success */
   1240       1.28  augustss 			sc->transfer_state = TSTATE_IDLE;
   1241       1.28  augustss 			sc->transfer_cb(sc, sc->transfer_priv,
   1242       1.28  augustss 					UGETDW(sc->csw.dCSWDataResidue),
   1243       1.28  augustss 					STATUS_CMD_OK);
   1244       1.28  augustss 
   1245       1.28  augustss 			return;
   1246        1.1   thorpej 		}
   1247        1.1   thorpej 
   1248       1.28  augustss 	/***** Bulk Reset *****/
   1249       1.28  augustss 	case TSTATE_BBB_RESET1:
   1250       1.28  augustss 		if (err)
   1251       1.28  augustss 			printf("%s: BBB reset failed, %s\n",
   1252       1.28  augustss 				USBDEVNAME(sc->sc_dev), usbd_errstr(err));
   1253       1.28  augustss 
   1254       1.70   gehenna 		sc->transfer_state = TSTATE_BBB_RESET2;
   1255       1.73   gehenna 		umass_clear_endpoint_stall(sc, UMASS_BULKIN,
   1256       1.28  augustss 			sc->transfer_xfer[XFER_BBB_RESET2]);
   1257       1.28  augustss 
   1258       1.28  augustss 		return;
   1259       1.28  augustss 	case TSTATE_BBB_RESET2:
   1260       1.28  augustss 		if (err)	/* should not occur */
   1261       1.28  augustss 			printf("%s: BBB bulk-in clear stall failed, %s\n",
   1262       1.28  augustss 			       USBDEVNAME(sc->sc_dev), usbd_errstr(err));
   1263       1.28  augustss 			/* no error recovery, otherwise we end up in a loop */
   1264       1.28  augustss 
   1265       1.70   gehenna 		sc->transfer_state = TSTATE_BBB_RESET3;
   1266       1.73   gehenna 		umass_clear_endpoint_stall(sc, UMASS_BULKOUT,
   1267       1.28  augustss 			sc->transfer_xfer[XFER_BBB_RESET3]);
   1268       1.28  augustss 
   1269       1.28  augustss 		return;
   1270       1.28  augustss 	case TSTATE_BBB_RESET3:
   1271       1.28  augustss 		if (err)	/* should not occur */
   1272       1.28  augustss 			printf("%s: BBB bulk-out clear stall failed, %s\n",
   1273       1.28  augustss 			       USBDEVNAME(sc->sc_dev), usbd_errstr(err));
   1274       1.28  augustss 			/* no error recovery, otherwise we end up in a loop */
   1275       1.28  augustss 
   1276       1.28  augustss 		sc->transfer_state = TSTATE_IDLE;
   1277       1.28  augustss 		if (sc->transfer_priv) {
   1278       1.28  augustss 			sc->transfer_cb(sc, sc->transfer_priv,
   1279       1.28  augustss 					sc->transfer_datalen,
   1280       1.28  augustss 					sc->transfer_status);
   1281       1.28  augustss 		}
   1282        1.1   thorpej 
   1283       1.28  augustss 		return;
   1284        1.1   thorpej 
   1285       1.28  augustss 	/***** Default *****/
   1286       1.28  augustss 	default:
   1287       1.89    provos 		panic("%s: Unknown state %d",
   1288       1.28  augustss 		      USBDEVNAME(sc->sc_dev), sc->transfer_state);
   1289       1.28  augustss 	}
   1290        1.1   thorpej }
   1291        1.1   thorpej 
   1292        1.1   thorpej /*
   1293       1.28  augustss  * Command/Bulk/Interrupt (CBI) specific functions
   1294        1.1   thorpej  */
   1295        1.1   thorpej 
   1296       1.28  augustss Static int
   1297       1.28  augustss umass_cbi_adsc(struct umass_softc *sc, char *buffer, int buflen,
   1298       1.28  augustss 	       usbd_xfer_handle xfer)
   1299        1.1   thorpej {
   1300       1.78   gehenna 	KASSERT(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I),
   1301       1.78   gehenna 		("sc->sc_wire == 0x%02x wrong for umass_cbi_adsc\n",
   1302       1.78   gehenna 		sc->sc_wire));
   1303       1.78   gehenna 
   1304      1.123  christos 	if ((sc->sc_cmd == UMASS_CPROTO_RBC) &&
   1305      1.123  christos 	    (sc->sc_quirks & UMASS_QUIRK_RBC_PAD_TO_12) != 0 && buflen < 12) {
   1306      1.123  christos 		(void)memset(buffer + buflen, 0, 12 - buflen);
   1307      1.123  christos 		buflen = 12;
   1308      1.123  christos 	}
   1309      1.123  christos 
   1310       1.78   gehenna 	sc->sc_req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
   1311       1.78   gehenna 	sc->sc_req.bRequest = UR_CBI_ADSC;
   1312       1.78   gehenna 	USETW(sc->sc_req.wValue, 0);
   1313       1.78   gehenna 	USETW(sc->sc_req.wIndex, sc->sc_ifaceno);
   1314       1.78   gehenna 	USETW(sc->sc_req.wLength, buflen);
   1315       1.78   gehenna 	return umass_setup_ctrl_transfer(sc, &sc->sc_req, buffer,
   1316       1.28  augustss 					 buflen, 0, xfer);
   1317       1.28  augustss }
   1318       1.28  augustss 
   1319        1.1   thorpej 
   1320       1.28  augustss Static void
   1321       1.28  augustss umass_cbi_reset(struct umass_softc *sc, int status)
   1322       1.28  augustss {
   1323       1.28  augustss 	int i;
   1324       1.28  augustss #	define SEND_DIAGNOSTIC_CMDLEN	12
   1325        1.1   thorpej 
   1326       1.78   gehenna 	KASSERT(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I),
   1327       1.78   gehenna 		("sc->sc_wire == 0x%02x wrong for umass_cbi_reset\n",
   1328       1.78   gehenna 		sc->sc_wire));
   1329       1.15   thorpej 
   1330       1.28  augustss 	if (sc->sc_dying)
   1331       1.28  augustss 		return;
   1332       1.28  augustss 
   1333       1.28  augustss 	/*
   1334       1.28  augustss 	 * Command Block Reset Protocol
   1335       1.88  augustss 	 *
   1336       1.28  augustss 	 * First send a reset request to the device. Then clear
   1337       1.28  augustss 	 * any possibly stalled bulk endpoints.
   1338       1.28  augustss 
   1339       1.28  augustss 	 * This is done in 3 steps, states:
   1340       1.28  augustss 	 * TSTATE_CBI_RESET1
   1341       1.28  augustss 	 * TSTATE_CBI_RESET2
   1342       1.28  augustss 	 * TSTATE_CBI_RESET3
   1343       1.28  augustss 	 *
   1344       1.28  augustss 	 * If the reset doesn't succeed, the device should be port reset.
   1345       1.28  augustss 	 */
   1346       1.28  augustss 
   1347       1.28  augustss 	DPRINTF(UDMASS_CBI, ("%s: CBI Reset\n",
   1348       1.28  augustss 		USBDEVNAME(sc->sc_dev)));
   1349       1.88  augustss 
   1350       1.28  augustss 	KASSERT(sizeof(sc->cbl) >= SEND_DIAGNOSTIC_CMDLEN,
   1351       1.28  augustss 		("%s: CBL struct is too small (%d < %d)\n",
   1352       1.28  augustss 			USBDEVNAME(sc->sc_dev),
   1353       1.28  augustss 			sizeof(sc->cbl), SEND_DIAGNOSTIC_CMDLEN));
   1354       1.28  augustss 
   1355       1.28  augustss 	sc->transfer_state = TSTATE_CBI_RESET1;
   1356       1.28  augustss 	sc->transfer_status = status;
   1357       1.28  augustss 
   1358       1.28  augustss 	/* The 0x1d code is the SEND DIAGNOSTIC command. To distingiush between
   1359       1.28  augustss 	 * the two the last 10 bytes of the cbl is filled with 0xff (section
   1360       1.28  augustss 	 * 2.2 of the CBI spec).
   1361       1.28  augustss 	 */
   1362       1.28  augustss 	sc->cbl[0] = 0x1d;	/* Command Block Reset */
   1363       1.28  augustss 	sc->cbl[1] = 0x04;
   1364       1.28  augustss 	for (i = 2; i < SEND_DIAGNOSTIC_CMDLEN; i++)
   1365       1.28  augustss 		sc->cbl[i] = 0xff;
   1366       1.28  augustss 
   1367       1.28  augustss 	umass_cbi_adsc(sc, sc->cbl, SEND_DIAGNOSTIC_CMDLEN,
   1368       1.28  augustss 		       sc->transfer_xfer[XFER_CBI_RESET1]);
   1369       1.28  augustss 	/* XXX if the command fails we should reset the port on the bub */
   1370       1.28  augustss }
   1371       1.28  augustss 
   1372       1.28  augustss Static void
   1373      1.122  christos umass_cbi_transfer(struct umass_softc *sc, int lun,
   1374       1.67  augustss 		   void *cmd, int cmdlen, void *data, int datalen, int dir,
   1375       1.75   gehenna 		   u_int timeout, umass_callback cb, void *priv)
   1376       1.28  augustss {
   1377       1.28  augustss 	DPRINTF(UDMASS_CBI,("%s: umass_cbi_transfer cmd=0x%02x, len=%d\n",
   1378       1.87  augustss 		USBDEVNAME(sc->sc_dev), *(u_char *)cmd, datalen));
   1379       1.28  augustss 
   1380       1.78   gehenna 	KASSERT(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I),
   1381       1.78   gehenna 		("sc->sc_wire == 0x%02x wrong for umass_cbi_transfer\n",
   1382       1.78   gehenna 		sc->sc_wire));
   1383       1.28  augustss 
   1384       1.28  augustss 	if (sc->sc_dying)
   1385       1.28  augustss 		return;
   1386       1.67  augustss 
   1387       1.67  augustss 	/* Be a little generous. */
   1388       1.67  augustss 	sc->timeout = timeout + USBD_DEFAULT_TIMEOUT;
   1389       1.28  augustss 
   1390       1.28  augustss 	/*
   1391       1.28  augustss 	 * Do a CBI transfer with cmdlen bytes from cmd, possibly
   1392       1.28  augustss 	 * a data phase of datalen bytes from/to the device and finally a
   1393       1.28  augustss 	 * csw read phase.
   1394       1.28  augustss 	 * If the data direction was inbound a maximum of datalen bytes
   1395       1.28  augustss 	 * is stored in the buffer pointed to by data.
   1396       1.28  augustss 	 *
   1397       1.28  augustss 	 * umass_cbi_transfer initialises the transfer and lets the state
   1398       1.88  augustss 	 * machine in umass_cbi_state handle the completion. It uses the
   1399       1.28  augustss 	 * following states:
   1400       1.28  augustss 	 * TSTATE_CBI_COMMAND
   1401       1.28  augustss 	 *   -> XXX fill in
   1402       1.28  augustss 	 *
   1403       1.28  augustss 	 * An error in any of those states will invoke
   1404       1.28  augustss 	 * umass_cbi_reset.
   1405       1.28  augustss 	 */
   1406       1.28  augustss 
   1407       1.28  augustss 	/* check the given arguments */
   1408       1.28  augustss 	KASSERT(datalen == 0 || data != NULL,
   1409       1.28  augustss 		("%s: datalen > 0, but no buffer",USBDEVNAME(sc->sc_dev)));
   1410       1.28  augustss 	KASSERT(datalen == 0 || dir != DIR_NONE,
   1411       1.28  augustss 		("%s: direction is NONE while datalen is not zero\n",
   1412       1.28  augustss 			USBDEVNAME(sc->sc_dev)));
   1413       1.28  augustss 
   1414       1.28  augustss 	/* store the details for the data transfer phase */
   1415       1.28  augustss 	sc->transfer_dir = dir;
   1416       1.28  augustss 	sc->transfer_data = data;
   1417       1.28  augustss 	sc->transfer_datalen = datalen;
   1418       1.28  augustss 	sc->transfer_actlen = 0;
   1419       1.28  augustss 	sc->transfer_cb = cb;
   1420       1.28  augustss 	sc->transfer_priv = priv;
   1421       1.28  augustss 	sc->transfer_status = STATUS_CMD_OK;
   1422       1.28  augustss 
   1423       1.28  augustss 	/* move from idle to the command state */
   1424       1.28  augustss 	sc->transfer_state = TSTATE_CBI_COMMAND;
   1425       1.28  augustss 
   1426       1.28  augustss 	/* Send the Command Block from host to device via control endpoint. */
   1427       1.28  augustss 	if (umass_cbi_adsc(sc, cmd, cmdlen, sc->transfer_xfer[XFER_CBI_CB]))
   1428       1.28  augustss 		umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1429       1.28  augustss }
   1430       1.28  augustss 
   1431       1.28  augustss Static void
   1432       1.28  augustss umass_cbi_state(usbd_xfer_handle xfer, usbd_private_handle priv,
   1433       1.28  augustss 		usbd_status err)
   1434       1.28  augustss {
   1435       1.28  augustss 	struct umass_softc *sc = (struct umass_softc *) priv;
   1436       1.28  augustss 
   1437       1.78   gehenna 	KASSERT(sc->sc_wire & (UMASS_WPROTO_CBI|UMASS_WPROTO_CBI_I),
   1438       1.78   gehenna 		("sc->sc_wire == 0x%02x wrong for umass_cbi_state\n",
   1439       1.78   gehenna 		sc->sc_wire));
   1440       1.28  augustss 
   1441       1.28  augustss 	if (sc->sc_dying)
   1442       1.28  augustss 		return;
   1443       1.28  augustss 
   1444       1.28  augustss 	/*
   1445       1.28  augustss 	 * State handling for CBI transfers.
   1446       1.28  augustss 	 */
   1447       1.28  augustss 
   1448       1.28  augustss 	DPRINTF(UDMASS_CBI, ("%s: Handling CBI state %d (%s), xfer=%p, %s\n",
   1449       1.28  augustss 		USBDEVNAME(sc->sc_dev), sc->transfer_state,
   1450       1.28  augustss 		states[sc->transfer_state], xfer, usbd_errstr(err)));
   1451       1.28  augustss 
   1452       1.28  augustss 	switch (sc->transfer_state) {
   1453       1.28  augustss 
   1454       1.28  augustss 	/***** CBI Transfer *****/
   1455       1.28  augustss 	case TSTATE_CBI_COMMAND:
   1456       1.28  augustss 		if (err == USBD_STALLED) {
   1457       1.28  augustss 			DPRINTF(UDMASS_CBI, ("%s: Command Transport failed\n",
   1458       1.28  augustss 				USBDEVNAME(sc->sc_dev)));
   1459       1.28  augustss 			/* Status transport by control pipe (section 2.3.2.1).
   1460       1.28  augustss 			 * The command contained in the command block failed.
   1461       1.28  augustss 			 *
   1462       1.28  augustss 			 * The control pipe has already been unstalled by the
   1463       1.28  augustss 			 * USB stack.
   1464       1.28  augustss 			 * Section 2.4.3.1.1 states that the bulk in endpoints
   1465       1.28  augustss 			 * should not stalled at this point.
   1466       1.28  augustss 			 */
   1467       1.28  augustss 
   1468       1.28  augustss 			sc->transfer_state = TSTATE_IDLE;
   1469       1.28  augustss 			sc->transfer_cb(sc, sc->transfer_priv,
   1470       1.28  augustss 					sc->transfer_datalen,
   1471       1.28  augustss 					STATUS_CMD_FAILED);
   1472       1.28  augustss 
   1473       1.28  augustss 			return;
   1474       1.28  augustss 		} else if (err) {
   1475       1.28  augustss 			DPRINTF(UDMASS_CBI, ("%s: failed to send ADSC\n",
   1476       1.28  augustss 				USBDEVNAME(sc->sc_dev)));
   1477       1.28  augustss 			umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1478       1.28  augustss 			return;
   1479       1.28  augustss 		}
   1480       1.88  augustss 
   1481      1.103   mycroft 		/* Data transport phase, setup transfer */
   1482       1.28  augustss 		sc->transfer_state = TSTATE_CBI_DATA;
   1483       1.28  augustss 		if (sc->transfer_dir == DIR_IN) {
   1484       1.73   gehenna 			if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKIN],
   1485      1.114   mycroft 					sc->data_buffer, sc->transfer_datalen,
   1486       1.28  augustss 					USBD_SHORT_XFER_OK | USBD_NO_COPY,
   1487       1.28  augustss 					sc->transfer_xfer[XFER_CBI_DATA]))
   1488       1.28  augustss 				umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1489       1.28  augustss 
   1490      1.103   mycroft 			return;
   1491       1.28  augustss 		} else if (sc->transfer_dir == DIR_OUT) {
   1492       1.88  augustss 			memcpy(sc->data_buffer, sc->transfer_data,
   1493       1.28  augustss 			       sc->transfer_datalen);
   1494       1.73   gehenna 			if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_BULKOUT],
   1495      1.114   mycroft 					sc->data_buffer, sc->transfer_datalen,
   1496       1.28  augustss 					USBD_NO_COPY,/* fixed length transfer */
   1497       1.28  augustss 					sc->transfer_xfer[XFER_CBI_DATA]))
   1498       1.28  augustss 				umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1499       1.28  augustss 
   1500      1.103   mycroft 			return;
   1501       1.28  augustss 		} else {
   1502       1.28  augustss 			DPRINTF(UDMASS_CBI, ("%s: no data phase\n",
   1503       1.28  augustss 				USBDEVNAME(sc->sc_dev)));
   1504       1.28  augustss 		}
   1505       1.28  augustss 
   1506      1.103   mycroft 		/* FALLTHROUGH if no data phase, err == 0 */
   1507       1.28  augustss 	case TSTATE_CBI_DATA:
   1508      1.103   mycroft 		/* Command transport phase error handling (ignored if no data
   1509      1.103   mycroft 		 * phase (fallthrough from previous state)) */
   1510      1.103   mycroft 		if (sc->transfer_dir != DIR_NONE) {
   1511      1.103   mycroft 			/* retrieve the length of the transfer that was done */
   1512      1.103   mycroft 			usbd_get_xfer_status(xfer, NULL, NULL,
   1513      1.103   mycroft 			    &sc->transfer_actlen, NULL);
   1514      1.103   mycroft 			DPRINTF(UDMASS_CBI, ("%s: CBI_DATA actlen=%d\n",
   1515      1.103   mycroft 				USBDEVNAME(sc->sc_dev), sc->transfer_actlen));
   1516       1.28  augustss 
   1517      1.103   mycroft 			if (err) {
   1518      1.103   mycroft 				DPRINTF(UDMASS_CBI, ("%s: Data-%s %d failed, "
   1519      1.103   mycroft 					"%s\n", USBDEVNAME(sc->sc_dev),
   1520      1.103   mycroft 					(sc->transfer_dir == DIR_IN?"in":"out"),
   1521      1.103   mycroft 					sc->transfer_datalen,usbd_errstr(err)));
   1522       1.28  augustss 
   1523      1.103   mycroft 				if (err == USBD_STALLED) {
   1524      1.103   mycroft 					sc->transfer_state = TSTATE_CBI_DCLEAR;
   1525      1.103   mycroft 					umass_clear_endpoint_stall(sc,
   1526      1.103   mycroft 					  (sc->transfer_dir == DIR_IN?
   1527      1.103   mycroft 					    UMASS_BULKIN:UMASS_BULKOUT),
   1528       1.28  augustss 					sc->transfer_xfer[XFER_CBI_DCLEAR]);
   1529      1.103   mycroft 				} else {
   1530      1.103   mycroft 					/* Unless the error is a pipe stall the
   1531      1.103   mycroft 					 * error is fatal.
   1532      1.103   mycroft 					 */
   1533      1.103   mycroft 					umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1534      1.103   mycroft 				}
   1535      1.103   mycroft 				return;
   1536       1.28  augustss 			}
   1537       1.28  augustss 		}
   1538       1.28  augustss 
   1539       1.28  augustss 		if (sc->transfer_dir == DIR_IN)
   1540       1.28  augustss 			memcpy(sc->transfer_data, sc->data_buffer,
   1541       1.28  augustss 			       sc->transfer_actlen);
   1542       1.28  augustss 
   1543       1.28  augustss 		DIF(UDMASS_CBI, if (sc->transfer_dir == DIR_IN)
   1544       1.28  augustss 					umass_dump_buffer(sc, sc->transfer_data,
   1545       1.28  augustss 						sc->transfer_actlen, 48));
   1546       1.28  augustss 
   1547      1.103   mycroft 		/* Status phase */
   1548       1.78   gehenna 		if (sc->sc_wire == UMASS_WPROTO_CBI_I) {
   1549       1.28  augustss 			sc->transfer_state = TSTATE_CBI_STATUS;
   1550       1.28  augustss 			memset(&sc->sbl, 0, sizeof(sc->sbl));
   1551       1.73   gehenna 			if (umass_setup_transfer(sc, sc->sc_pipe[UMASS_INTRIN],
   1552       1.28  augustss 				    &sc->sbl, sizeof(sc->sbl),
   1553       1.28  augustss 				    0,	/* fixed length transfer */
   1554      1.100   mycroft 				    sc->transfer_xfer[XFER_CBI_STATUS]))
   1555       1.28  augustss 				umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1556       1.28  augustss 		} else {
   1557       1.28  augustss 			/* No command completion interrupt. Request
   1558       1.28  augustss 			 * sense to get status of command.
   1559       1.28  augustss 			 */
   1560       1.28  augustss 			sc->transfer_state = TSTATE_IDLE;
   1561       1.28  augustss 			sc->transfer_cb(sc, sc->transfer_priv,
   1562       1.28  augustss 				sc->transfer_datalen - sc->transfer_actlen,
   1563       1.28  augustss 				STATUS_CMD_UNKNOWN);
   1564       1.28  augustss 		}
   1565       1.28  augustss 		return;
   1566       1.28  augustss 
   1567       1.28  augustss 	case TSTATE_CBI_STATUS:
   1568       1.28  augustss 		if (err) {
   1569       1.28  augustss 			DPRINTF(UDMASS_CBI, ("%s: Status Transport failed\n",
   1570       1.28  augustss 				USBDEVNAME(sc->sc_dev)));
   1571       1.28  augustss 			/* Status transport by interrupt pipe (section 2.3.2.2).
   1572       1.28  augustss 			 */
   1573       1.28  augustss 
   1574       1.28  augustss 			if (err == USBD_STALLED) {
   1575       1.70   gehenna 				sc->transfer_state = TSTATE_CBI_SCLEAR;
   1576       1.73   gehenna 				umass_clear_endpoint_stall(sc, UMASS_INTRIN,
   1577       1.28  augustss 					sc->transfer_xfer[XFER_CBI_SCLEAR]);
   1578       1.28  augustss 			} else {
   1579       1.28  augustss 				umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1580       1.28  augustss 			}
   1581       1.28  augustss 			return;
   1582       1.28  augustss 		}
   1583       1.28  augustss 
   1584       1.28  augustss 		/* Dissect the information in the buffer */
   1585       1.28  augustss 
   1586      1.100   mycroft 		{
   1587      1.100   mycroft 			u_int32_t actlen;
   1588      1.100   mycroft 			usbd_get_xfer_status(xfer,NULL,NULL,&actlen,NULL);
   1589      1.100   mycroft 			DPRINTF(UDMASS_CBI, ("%s: CBI_STATUS actlen=%d\n",
   1590      1.100   mycroft 				USBDEVNAME(sc->sc_dev), actlen));
   1591      1.100   mycroft 			if (actlen != 2)
   1592      1.100   mycroft 				break;
   1593      1.100   mycroft 		}
   1594      1.100   mycroft 
   1595       1.78   gehenna 		if (sc->sc_cmd == UMASS_CPROTO_UFI) {
   1596       1.28  augustss 			int status;
   1597       1.88  augustss 
   1598       1.28  augustss 			/* Section 3.4.3.1.3 specifies that the UFI command
   1599       1.28  augustss 			 * protocol returns an ASC and ASCQ in the interrupt
   1600       1.28  augustss 			 * data block.
   1601       1.28  augustss 			 */
   1602       1.28  augustss 
   1603       1.28  augustss 			DPRINTF(UDMASS_CBI, ("%s: UFI CCI, ASC = 0x%02x, "
   1604       1.28  augustss 				"ASCQ = 0x%02x\n",
   1605       1.28  augustss 				USBDEVNAME(sc->sc_dev),
   1606       1.28  augustss 				sc->sbl.ufi.asc, sc->sbl.ufi.ascq));
   1607       1.28  augustss 
   1608      1.100   mycroft 			if ((sc->sbl.ufi.asc == 0 && sc->sbl.ufi.ascq == 0) ||
   1609      1.100   mycroft 			    sc->sc_sense)
   1610       1.28  augustss 				status = STATUS_CMD_OK;
   1611       1.28  augustss 			else
   1612       1.28  augustss 				status = STATUS_CMD_FAILED;
   1613       1.28  augustss 
   1614      1.100   mycroft 			/* No autosense, command successful */
   1615      1.100   mycroft 			sc->transfer_state = TSTATE_IDLE;
   1616      1.100   mycroft 			sc->transfer_cb(sc, sc->transfer_priv,
   1617      1.100   mycroft 			    sc->transfer_datalen - sc->transfer_actlen, status);
   1618       1.28  augustss 		} else {
   1619      1.100   mycroft 			int status;
   1620      1.100   mycroft 
   1621       1.28  augustss 			/* Command Interrupt Data Block */
   1622      1.100   mycroft 
   1623       1.28  augustss 			DPRINTF(UDMASS_CBI, ("%s: type=0x%02x, value=0x%02x\n",
   1624       1.28  augustss 				USBDEVNAME(sc->sc_dev),
   1625       1.28  augustss 				sc->sbl.common.type, sc->sbl.common.value));
   1626       1.28  augustss 
   1627       1.28  augustss 			if (sc->sbl.common.type == IDB_TYPE_CCI) {
   1628      1.100   mycroft 				switch (sc->sbl.common.value & IDB_VALUE_STATUS_MASK) {
   1629      1.100   mycroft 				case IDB_VALUE_PASS:
   1630      1.100   mycroft 					status = STATUS_CMD_OK;
   1631      1.100   mycroft 					break;
   1632      1.100   mycroft 				case IDB_VALUE_FAIL:
   1633      1.100   mycroft 				case IDB_VALUE_PERSISTENT:
   1634      1.100   mycroft 					status = STATUS_CMD_FAILED;
   1635      1.100   mycroft 					break;
   1636      1.100   mycroft 				case IDB_VALUE_PHASE:
   1637      1.107   mycroft 				default: /* XXX: gcc */
   1638      1.100   mycroft 					status = STATUS_WIRE_FAILED;
   1639      1.100   mycroft 					break;
   1640       1.28  augustss 				}
   1641       1.28  augustss 
   1642       1.28  augustss 				sc->transfer_state = TSTATE_IDLE;
   1643       1.28  augustss 				sc->transfer_cb(sc, sc->transfer_priv,
   1644      1.100   mycroft 				    sc->transfer_datalen - sc->transfer_actlen, status);
   1645       1.28  augustss 			}
   1646       1.28  augustss 		}
   1647       1.28  augustss 		return;
   1648       1.28  augustss 
   1649       1.28  augustss 	case TSTATE_CBI_DCLEAR:
   1650      1.113   mycroft 		if (err) {	/* should not occur */
   1651      1.103   mycroft 			printf("%s: CBI bulk-%s stall clear failed, %s\n",
   1652      1.103   mycroft 			    USBDEVNAME(sc->sc_dev),
   1653      1.103   mycroft 			    (sc->transfer_dir == DIR_IN? "in":"out"),
   1654      1.103   mycroft 			    usbd_errstr(err));
   1655      1.113   mycroft 			umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1656      1.115   mycroft 		} else {
   1657      1.115   mycroft 			sc->transfer_state = TSTATE_IDLE;
   1658      1.115   mycroft 			sc->transfer_cb(sc, sc->transfer_priv,
   1659      1.115   mycroft 			    sc->transfer_datalen, STATUS_CMD_FAILED);
   1660      1.115   mycroft 		}
   1661       1.28  augustss 		return;
   1662       1.28  augustss 
   1663       1.28  augustss 	case TSTATE_CBI_SCLEAR:
   1664      1.113   mycroft 		if (err) {	/* should not occur */
   1665       1.28  augustss 			printf("%s: CBI intr-in stall clear failed, %s\n",
   1666       1.28  augustss 			       USBDEVNAME(sc->sc_dev), usbd_errstr(err));
   1667      1.113   mycroft 			umass_cbi_reset(sc, STATUS_WIRE_FAILED);
   1668      1.115   mycroft 		} else {
   1669      1.115   mycroft 			sc->transfer_state = TSTATE_IDLE;
   1670      1.115   mycroft 			sc->transfer_cb(sc, sc->transfer_priv,
   1671      1.115   mycroft 			    sc->transfer_datalen, STATUS_CMD_FAILED);
   1672      1.115   mycroft 		}
   1673       1.28  augustss 		return;
   1674       1.28  augustss 
   1675       1.28  augustss 	/***** CBI Reset *****/
   1676       1.28  augustss 	case TSTATE_CBI_RESET1:
   1677       1.28  augustss 		if (err)
   1678       1.28  augustss 			printf("%s: CBI reset failed, %s\n",
   1679       1.28  augustss 				USBDEVNAME(sc->sc_dev), usbd_errstr(err));
   1680       1.28  augustss 
   1681       1.70   gehenna 		sc->transfer_state = TSTATE_CBI_RESET2;
   1682       1.73   gehenna 		umass_clear_endpoint_stall(sc, UMASS_BULKIN,
   1683       1.28  augustss 			sc->transfer_xfer[XFER_CBI_RESET2]);
   1684       1.28  augustss 
   1685       1.28  augustss 		return;
   1686       1.28  augustss 	case TSTATE_CBI_RESET2:
   1687       1.28  augustss 		if (err)	/* should not occur */
   1688       1.28  augustss 			printf("%s: CBI bulk-in stall clear failed, %s\n",
   1689       1.28  augustss 			       USBDEVNAME(sc->sc_dev), usbd_errstr(err));
   1690       1.28  augustss 			/* no error recovery, otherwise we end up in a loop */
   1691       1.28  augustss 
   1692       1.70   gehenna 		sc->transfer_state = TSTATE_CBI_RESET3;
   1693       1.73   gehenna 		umass_clear_endpoint_stall(sc, UMASS_BULKOUT,
   1694       1.28  augustss 			sc->transfer_xfer[XFER_CBI_RESET3]);
   1695       1.28  augustss 
   1696       1.28  augustss 		return;
   1697       1.28  augustss 	case TSTATE_CBI_RESET3:
   1698       1.28  augustss 		if (err)	/* should not occur */
   1699       1.28  augustss 			printf("%s: CBI bulk-out stall clear failed, %s\n",
   1700       1.28  augustss 			       USBDEVNAME(sc->sc_dev), usbd_errstr(err));
   1701       1.28  augustss 			/* no error recovery, otherwise we end up in a loop */
   1702       1.28  augustss 
   1703       1.28  augustss 		sc->transfer_state = TSTATE_IDLE;
   1704       1.28  augustss 		if (sc->transfer_priv) {
   1705       1.28  augustss 			sc->transfer_cb(sc, sc->transfer_priv,
   1706       1.28  augustss 					sc->transfer_datalen,
   1707       1.28  augustss 					sc->transfer_status);
   1708       1.28  augustss 		}
   1709       1.28  augustss 
   1710       1.28  augustss 		return;
   1711       1.28  augustss 
   1712       1.28  augustss 
   1713       1.28  augustss 	/***** Default *****/
   1714       1.28  augustss 	default:
   1715       1.89    provos 		panic("%s: Unknown state %d",
   1716       1.28  augustss 		      USBDEVNAME(sc->sc_dev), sc->transfer_state);
   1717       1.28  augustss 	}
   1718       1.28  augustss }
   1719       1.28  augustss 
   1720       1.28  augustss usbd_status
   1721       1.28  augustss umass_bbb_get_max_lun(struct umass_softc *sc, u_int8_t *maxlun)
   1722       1.28  augustss {
   1723       1.28  augustss 	usb_device_request_t req;
   1724       1.28  augustss 	usbd_status err;
   1725       1.28  augustss 
   1726       1.28  augustss 	*maxlun = 0;		/* Default to 0. */
   1727       1.28  augustss 
   1728       1.28  augustss 	DPRINTF(UDMASS_BBB, ("%s: Get Max Lun\n", USBDEVNAME(sc->sc_dev)));
   1729       1.28  augustss 
   1730       1.28  augustss 	/* The Get Max Lun command is a class-specific request. */
   1731       1.28  augustss 	req.bmRequestType = UT_READ_CLASS_INTERFACE;
   1732       1.28  augustss 	req.bRequest = UR_BBB_GET_MAX_LUN;
   1733       1.28  augustss 	USETW(req.wValue, 0);
   1734       1.76   gehenna 	USETW(req.wIndex, sc->sc_ifaceno);
   1735       1.28  augustss 	USETW(req.wLength, 1);
   1736       1.28  augustss 
   1737       1.97   mycroft 	err = usbd_do_request_flags(sc->sc_udev, &req, maxlun,
   1738       1.97   mycroft 	    USBD_SHORT_XFER_OK, 0, USBD_DEFAULT_TIMEOUT);
   1739       1.28  augustss 	switch (err) {
   1740       1.28  augustss 	case USBD_NORMAL_COMPLETION:
   1741       1.28  augustss 		DPRINTF(UDMASS_BBB, ("%s: Max Lun %d\n",
   1742       1.28  augustss 		    USBDEVNAME(sc->sc_dev), *maxlun));
   1743       1.28  augustss 		break;
   1744       1.28  augustss 
   1745       1.28  augustss 	case USBD_STALLED:
   1746       1.28  augustss 		/*
   1747       1.28  augustss 		 * Device doesn't support Get Max Lun request.
   1748       1.28  augustss 		 */
   1749       1.28  augustss 		err = USBD_NORMAL_COMPLETION;
   1750       1.28  augustss 		DPRINTF(UDMASS_BBB, ("%s: Get Max Lun not supported\n",
   1751       1.28  augustss 		    USBDEVNAME(sc->sc_dev)));
   1752       1.28  augustss 		break;
   1753       1.28  augustss 
   1754       1.28  augustss 	case USBD_SHORT_XFER:
   1755       1.28  augustss 		/*
   1756       1.28  augustss 		 * XXX This must mean Get Max Lun is not supported, too!
   1757       1.28  augustss 		 */
   1758       1.28  augustss 		err = USBD_NORMAL_COMPLETION;
   1759       1.28  augustss 		DPRINTF(UDMASS_BBB, ("%s: Get Max Lun SHORT_XFER\n",
   1760       1.28  augustss 		    USBDEVNAME(sc->sc_dev)));
   1761       1.28  augustss 		break;
   1762       1.28  augustss 
   1763       1.28  augustss 	default:
   1764       1.28  augustss 		printf("%s: Get Max Lun failed: %s\n",
   1765       1.28  augustss 		    USBDEVNAME(sc->sc_dev), usbd_errstr(err));
   1766       1.28  augustss 		/* XXX Should we port_reset the device? */
   1767       1.28  augustss 		break;
   1768       1.28  augustss 	}
   1769       1.28  augustss 
   1770       1.28  augustss 	return (err);
   1771       1.28  augustss }
   1772       1.28  augustss 
   1773       1.28  augustss 
   1774       1.28  augustss 
   1775       1.28  augustss 
   1776       1.28  augustss #ifdef UMASS_DEBUG
   1777       1.28  augustss Static void
   1778       1.28  augustss umass_bbb_dump_cbw(struct umass_softc *sc, umass_bbb_cbw_t *cbw)
   1779       1.28  augustss {
   1780       1.28  augustss 	int clen = cbw->bCDBLength;
   1781       1.28  augustss 	int dlen = UGETDW(cbw->dCBWDataTransferLength);
   1782       1.28  augustss 	u_int8_t *c = cbw->CBWCDB;
   1783       1.28  augustss 	int tag = UGETDW(cbw->dCBWTag);
   1784       1.28  augustss 	int flags = cbw->bCBWFlags;
   1785       1.28  augustss 
   1786       1.83  augustss 	DPRINTF(UDMASS_BBB, ("%s: CBW %d: cmdlen=%d "
   1787       1.83  augustss 		"(0x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%s), "
   1788       1.28  augustss 		"data = %d bytes, dir = %s\n",
   1789       1.28  augustss 		USBDEVNAME(sc->sc_dev), tag, clen,
   1790       1.83  augustss 		c[0], c[1], c[2], c[3], c[4], c[5],
   1791       1.83  augustss 		c[6], c[7], c[8], c[9],
   1792       1.83  augustss 		(clen > 10? "...":""),
   1793       1.28  augustss 		dlen, (flags == CBWFLAGS_IN? "in":
   1794       1.28  augustss 		       (flags == CBWFLAGS_OUT? "out":"<invalid>"))));
   1795       1.28  augustss }
   1796       1.28  augustss 
   1797       1.28  augustss Static void
   1798       1.28  augustss umass_bbb_dump_csw(struct umass_softc *sc, umass_bbb_csw_t *csw)
   1799       1.28  augustss {
   1800       1.28  augustss 	int sig = UGETDW(csw->dCSWSignature);
   1801      1.112   mycroft 	int tag = UGETDW(csw->dCSWTag);
   1802       1.28  augustss 	int res = UGETDW(csw->dCSWDataResidue);
   1803       1.28  augustss 	int status = csw->bCSWStatus;
   1804       1.28  augustss 
   1805       1.28  augustss 	DPRINTF(UDMASS_BBB, ("%s: CSW %d: sig = 0x%08x (%s), tag = %d, "
   1806       1.28  augustss 		"res = %d, status = 0x%02x (%s)\n", USBDEVNAME(sc->sc_dev),
   1807       1.28  augustss 		tag, sig, (sig == CSWSIGNATURE?	 "valid":"invalid"),
   1808       1.28  augustss 		tag, res,
   1809       1.28  augustss 		status, (status == CSWSTATUS_GOOD? "good":
   1810       1.28  augustss 			 (status == CSWSTATUS_FAILED? "failed":
   1811       1.28  augustss 			  (status == CSWSTATUS_PHASE? "phase":"<invalid>")))));
   1812       1.28  augustss }
   1813       1.28  augustss 
   1814       1.28  augustss Static void
   1815       1.28  augustss umass_dump_buffer(struct umass_softc *sc, u_int8_t *buffer, int buflen,
   1816       1.28  augustss 		  int printlen)
   1817       1.28  augustss {
   1818       1.28  augustss 	int i, j;
   1819       1.28  augustss 	char s1[40];
   1820       1.28  augustss 	char s2[40];
   1821       1.28  augustss 	char s3[5];
   1822       1.28  augustss 
   1823       1.28  augustss 	s1[0] = '\0';
   1824       1.28  augustss 	s3[0] = '\0';
   1825       1.28  augustss 
   1826      1.110    itojun 	snprintf(s2, sizeof(s2), " buffer=%p, buflen=%d", buffer, buflen);
   1827       1.28  augustss 	for (i = 0; i < buflen && i < printlen; i++) {
   1828       1.28  augustss 		j = i % 16;
   1829       1.28  augustss 		if (j == 0 && i != 0) {
   1830       1.28  augustss 			DPRINTF(UDMASS_GEN, ("%s: 0x %s%s\n",
   1831       1.28  augustss 				USBDEVNAME(sc->sc_dev), s1, s2));
   1832       1.28  augustss 			s2[0] = '\0';
   1833       1.28  augustss 		}
   1834      1.110    itojun 		snprintf(&s1[j * 2], sizeof(s1) - j * 2, "%02x",
   1835      1.110    itojun 		    buffer[i] & 0xff);
   1836       1.28  augustss 	}
   1837       1.28  augustss 	if (buflen > printlen)
   1838      1.110    itojun 		snprintf(s3, sizeof(s3), " ...");
   1839       1.28  augustss 	DPRINTF(UDMASS_GEN, ("%s: 0x %s%s%s\n",
   1840       1.28  augustss 		USBDEVNAME(sc->sc_dev), s1, s2, s3));
   1841       1.28  augustss }
   1842       1.28  augustss #endif
   1843