2765 lines
77 KiB
C
2765 lines
77 KiB
C
/*-
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* Copyright (c) 1999 MAEKAWA Masahide <bishop@rr.iij4u.or.jp>,
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* Nick Hibma <n_hibma@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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* $NetBSD: umass.c,v 1.28 2000/04/02 23:46:53 augustss Exp $
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*/
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/*
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* Ported to NetBSD by Lennart Augustsson <augustss@netbsd.org>.
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* Parts of the code written my Jason R. Thorpe <thorpej@shagadelic.org>.
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*/
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/*
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* The PDF documentation can be found at http://www.usb.org/developers/
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*/
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/*
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* The driver handles 3 Wire Protocols
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* - Command/Bulk/Interrupt (CBI)
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* - Command/Bulk/Interrupt with Command Completion Interrupt (CBI with CCI)
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* - Mass Storage Bulk-Only (BBB)
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* (BBB refers Bulk/Bulk/Bulk for Command/Data/Status phases)
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*
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* Over these wire protocols it handles the following command protocols
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* - SCSI
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* - UFI (floppy command set)
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* - 8070i (ATAPI)
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*
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* UFI and 8070i (ATAPI) are transformed versions of the SCSI command set. The
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* sc->transform method is used to convert the commands into the appropriate
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* format (if at all necessary). For example, UFI requires all commands to be
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* 12 bytes in length amongst other things.
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*
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* The source code below is marked and can be split into a number of pieces
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* (in this order):
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*
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* - probe/attach/detach
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* - generic transfer routines
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* - BBB
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* - CBI
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* - CBI_I (in addition to functions from CBI)
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* - CAM (Common Access Method)
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* - SCSI
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* - UFI
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* - 8070i (ATAPI)
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*
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* The protocols are implemented using a state machine, for the transfers as
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* well as for the resets. The state machine is contained in umass_*_state.
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* The state machine is started through either umass_*_transfer or
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* umass_*_reset.
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*
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* The reason for doing this is a) CAM performs a lot better this way and b) it
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* avoids using tsleep from interrupt context (for example after a failed
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* transfer).
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*/
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/*
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* The SCSI related part of this driver has been derived from the
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* dev/ppbus/vpo.c driver, by Nicolas Souchu (nsouch@freebsd.org).
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*
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* The CAM layer uses so called actions which are messages sent to the host
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* adapter for completion. The actions come in through umass_cam_action. The
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* appropriate block of routines is called depending on the transport protocol
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* in use. When the transfer has finished, these routines call
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* umass_cam_cb again to complete the CAM command.
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*/
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/*
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* XXX Currently CBI with CCI is not supported because it bombs the system
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* when the device is detached (low frequency interrupts are detached
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* too late.
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*/
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#undef CBI_I
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <machine/clock.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdi_util.h>
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#include <dev/usb/usbdevs.h>
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#include <cam/cam.h>
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#include <cam/cam_ccb.h>
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#include <cam/cam_sim.h>
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#include <cam/cam_xpt_sim.h>
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#include <cam/scsi/scsi_all.h>
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#include <cam/scsi/scsi_da.h>
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#include <sys/devicestat.h>
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#include <cam/cam_periph.h>
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#ifdef UMASS_DEBUG
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#define DIF(m, x) if (umassdebug & (m)) do { x ; } while (0)
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#define DPRINTF(m, x) if (umassdebug & (m)) logprintf x
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#define UDMASS_GEN 0x00010000 /* general */
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#define UDMASS_SCSI 0x00020000 /* scsi */
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#define UDMASS_UFI 0x00040000 /* ufi command set */
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#define UDMASS_ATAPI 0x00080000 /* 8070i command set */
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#define UDMASS_CMD (UDMASS_SCSI|UDMASS_UFI|UDMASS_ATAPI)
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#define UDMASS_USB 0x00100000 /* USB general */
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#define UDMASS_BBB 0x00200000 /* Bulk-Only transfers */
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#define UDMASS_CBI 0x00400000 /* CBI transfers */
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#define UDMASS_WIRE (UDMASS_BBB|UDMASS_CBI)
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#define UDMASS_ALL 0xffff0000 /* all of the above */
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int umassdebug = UDMASS_ALL;
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#else
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#define DIF(m, x) /* nop */
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#define DPRINTF(m, x) /* nop */
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#endif
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/* Generic definitions */
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/* Direction for umass_*_transfer */
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#define DIR_NONE 0
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#define DIR_IN 1
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#define DIR_OUT 2
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/* device name */
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#define DEVNAME "umass"
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#define DEVNAME_SIM "umass-sim"
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#define UMASS_MAX_TRANSFER_SIZE 65536
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#define UMASS_DEFAULT_TRANSFER_SPEED 150 /* in kb/s, conservative est. */
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#define UMASS_FLOPPY_TRANSFER_SPEED 20
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#define UMASS_ZIP100_TRANSFER_SPEED 650
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#define UMASS_TIMEOUT 5000 /* msecs */
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/* CAM specific definitions */
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/* We only have one bus */
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#define UMASS_SCSI_BUS 0
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/* All USB drives are 'connected' to one SIM (SCSI controller). umass3
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* ends up being target 3 on that SIM. When a request for target 3
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* comes in we fetch the softc with devclass_get_softc(target_id).
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*
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* The SIM is the highest target number. This makes sure that umass0 corresponds
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* to target 0 on the USB SCSI bus.
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*/
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#ifndef UMASS_DEBUG
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#define UMASS_SCSIID_MAX 32 /* maximum number of drives expected */
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#else
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/* while debugging avoid unnecessary clutter in the output at umass_cam_rescan
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* (XPT_PATH_INQ)
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*/
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#define UMASS_SCSIID_MAX 3 /* maximum number of drives expected */
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#endif
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#define UMASS_SCSIID_HOST UMASS_SCSIID_MAX
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#define MS_TO_TICKS(ms) ((ms) * hz / 1000)
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/* Bulk-Only features */
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#define UR_BBB_RESET 0xff /* Bulk-Only reset */
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#define UR_BBB_GET_MAX_LUN 0xfe /* Get maximum lun */
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/* Command Block Wrapper */
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typedef struct {
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uDWord dCBWSignature;
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# define CBWSIGNATURE 0x43425355
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uDWord dCBWTag;
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uDWord dCBWDataTransferLength;
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uByte bCBWFlags;
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# define CBWFLAGS_OUT 0x00
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# define CBWFLAGS_IN 0x80
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uByte bCBWLUN;
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uByte bCDBLength;
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# define CBWCDBLENGTH 16
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uByte CBWCDB[CBWCDBLENGTH];
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} umass_bbb_cbw_t;
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#define UMASS_BBB_CBW_SIZE 31
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/* Command Status Wrapper */
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typedef struct {
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uDWord dCSWSignature;
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# define CSWSIGNATURE 0x53425355
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uDWord dCSWTag;
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uDWord dCSWDataResidue;
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uByte bCSWStatus;
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# define CSWSTATUS_GOOD 0x0
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# define CSWSTATUS_FAILED 0x1
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# define CSWSTATUS_PHASE 0x2
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} umass_bbb_csw_t;
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#define UMASS_BBB_CSW_SIZE 13
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/* CBI features */
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#define UR_CBI_ADSC 0x00
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typedef unsigned char umass_cbi_cbl_t[16]; /* Command block */
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typedef union {
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struct {
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unsigned char type;
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#define IDB_TYPE_CCI 0x00
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unsigned char value;
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#define IDB_VALUE_PASS 0x00
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#define IDB_VALUE_FAIL 0x01
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#define IDB_VALUE_PHASE 0x02
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#define IDB_VALUE_PERSISTENT 0x03
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#define IDB_VALUE_STATUS_MASK 0x03
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} common;
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struct {
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unsigned char asc;
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unsigned char ascq;
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} ufi;
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} umass_cbi_sbl_t;
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struct umass_softc; /* see below */
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typedef void (*transfer_cb_f) __P((struct umass_softc *sc, void *priv,
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int residue, int status));
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#define STATUS_CMD_OK 0 /* everything ok */
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#define STATUS_CMD_UNKNOWN 1 /* will have to fetch sense */
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#define STATUS_CMD_FAILED 2 /* transfer was ok, command failed */
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#define STATUS_WIRE_FAILED 3 /* couldn't even get command across */
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typedef void (*wire_reset_f) __P((struct umass_softc *sc, int status));
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typedef void (*wire_transfer_f) __P((struct umass_softc *sc, int lun,
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void *cmd, int cmdlen, void *data, int datalen,
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int dir, transfer_cb_f cb, void *priv));
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typedef void (*wire_state_f) __P((usbd_xfer_handle xfer,
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usbd_private_handle priv, usbd_status err));
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typedef int (*command_transform_f) __P((struct umass_softc *sc,
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unsigned char *cmd, int cmdlen,
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unsigned char **rcmd, int *rcmdlen));
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/* the per device structure */
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struct umass_softc {
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USBBASEDEVICE sc_dev; /* base device */
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usbd_device_handle sc_udev; /* USB device */
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unsigned char flags; /* various device flags */
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# define UMASS_FLAGS_GONE 0x01 /* devices is no more */
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unsigned char drive;
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# define DRIVE_GENERIC 0 /* use defaults for this one */
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# define ZIP_100 1 /* to be used for quirks */
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# define ZIP_250 2
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# define SHUTTLE_EUSB 3
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# define INSYSTEM_USBCABLE 4
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unsigned char quirks;
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/* The drive does not support Test Unit Ready. Convert to
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* Start Unit
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* Y-E Data, Zip 100
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*/
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# define NO_TEST_UNIT_READY 0x01
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/* The drive does not reset the Unit Attention state after
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* REQUEST SENSE has been sent. The INQUIRY command does not reset
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* the UA either, and so CAM runs in circles trying to retrieve the
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* initial INQUIRY data.
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* Y-E Data
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*/
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# define RS_NO_CLEAR_UA 0x02
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/* The drive does not support START STOP.
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* Shuttle E-USB
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*/
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# define NO_START_STOP 0x04
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unsigned int proto;
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# define PROTO_UNKNOWN 0x0000 /* unknown protocol */
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# define PROTO_BBB 0x0001 /* USB wire protocol */
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# define PROTO_CBI 0x0002
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# define PROTO_CBI_I 0x0004
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# define PROTO_WIRE 0x00ff /* USB wire protocol mask */
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# define PROTO_SCSI 0x0100 /* command protocol */
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# define PROTO_ATAPI 0x0200
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# define PROTO_UFI 0x0400
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# define PROTO_COMMAND 0xff00 /* command protocol mask */
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usbd_interface_handle iface; /* Mass Storage interface */
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int ifaceno; /* MS iface number */
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u_int8_t bulkin; /* bulk-in Endpoint Address */
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u_int8_t bulkout; /* bulk-out Endpoint Address */
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u_int8_t intrin; /* intr-in Endp. (CBI) */
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usbd_pipe_handle bulkin_pipe;
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usbd_pipe_handle bulkout_pipe;
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usbd_pipe_handle intrin_pipe;
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/* Reset the device in a wire protocol specific way */
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wire_reset_f reset;
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/* The start of a wire transfer. It prepares the whole transfer (cmd,
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* data, and status stage) and initiates it. It is up to the state
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* machine (below) to handle the various stages and errors in these
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*/
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wire_transfer_f transfer;
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/* The state machine, handling the various states during a transfer */
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wire_state_f state;
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/* The command transform function is used to conver the SCSI commands
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* into their derivatives, like UFI, ATAPI, and friends.
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*/
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command_transform_f transform; /* command transform */
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/* Bulk specific variables for transfers in progress */
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umass_bbb_cbw_t cbw; /* command block wrapper */
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umass_bbb_csw_t csw; /* command status wrapper*/
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/* CBI specific variables for transfers in progress */
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umass_cbi_cbl_t cbl; /* command block */
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umass_cbi_sbl_t sbl; /* status block */
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/* generic variables for transfers in progress */
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/* ctrl transfer requests */
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usb_device_request_t request;
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/* xfer handles
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* Most of our operations are initiated from interrupt context, so
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* we need to avoid using the one that is in use. We want to avoid
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* allocating them in the interrupt context as well.
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*/
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/* indices into array below */
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# define XFER_BBB_CBW 0 /* Bulk-Only */
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# define XFER_BBB_DATA 1
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# define XFER_BBB_DCLEAR 2
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# define XFER_BBB_CSW1 3
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# define XFER_BBB_CSW2 4
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# define XFER_BBB_SCLEAR 5
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# define XFER_BBB_RESET1 6
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# define XFER_BBB_RESET2 7
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# define XFER_BBB_RESET3 8
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# define XFER_CBI_CB 0 /* CBI */
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# define XFER_CBI_DATA 1
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# define XFER_CBI_STATUS 2
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# define XFER_CBI_DCLEAR 3
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# define XFER_CBI_SCLEAR 4
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# define XFER_CBI_RESET1 5
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# define XFER_CBI_RESET2 6
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# define XFER_CBI_RESET3 7
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# define XFER_NR 9 /* maximum number */
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usbd_xfer_handle transfer_xfer[XFER_NR]; /* for ctrl xfers */
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int transfer_dir; /* data direction */
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void *transfer_data; /* data buffer */
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int transfer_datalen; /* (maximum) length */
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int transfer_actlen; /* actual length */
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transfer_cb_f transfer_cb; /* callback */
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void *transfer_priv; /* for callback */
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int transfer_status;
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int transfer_state;
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# define TSTATE_IDLE 0
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# define TSTATE_BBB_COMMAND 1 /* CBW transfer */
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# define TSTATE_BBB_DATA 2 /* Data transfer */
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# define TSTATE_BBB_DCLEAR 3 /* clear endpt stall */
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# define TSTATE_BBB_STATUS1 4 /* clear endpt stall */
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# define TSTATE_BBB_SCLEAR 5 /* clear endpt stall */
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# define TSTATE_BBB_STATUS2 6 /* CSW transfer */
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# define TSTATE_BBB_RESET1 7 /* reset command */
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# define TSTATE_BBB_RESET2 8 /* in clear stall */
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# define TSTATE_BBB_RESET3 9 /* out clear stall */
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# define TSTATE_CBI_COMMAND 10 /* command transfer */
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# define TSTATE_CBI_DATA 11 /* data transfer */
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# define TSTATE_CBI_STATUS 12 /* status transfer */
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# define TSTATE_CBI_DCLEAR 13 /* clear ep stall */
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# define TSTATE_CBI_SCLEAR 14 /* clear ep stall */
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# define TSTATE_CBI_RESET1 15 /* reset command */
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# define TSTATE_CBI_RESET2 16 /* in clear stall */
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# define TSTATE_CBI_RESET3 17 /* out clear stall */
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# define TSTATE_STATES 18 /* # of states above */
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/* SCSI/CAM specific variables */
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unsigned char cam_scsi_command[CAM_MAX_CDBLEN];
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struct scsi_sense cam_scsi_sense;
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int transfer_speed; /* in kb/s */
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int maxlun; /* maximum LUN number */
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};
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#ifdef UMASS_DEBUG
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char *states[TSTATE_STATES+1] = {
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/* should be kept in sync with the list at transfer_state */
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"Idle",
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"BBB CBW",
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"BBB Data",
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"BBB Data bulk-in/-out clear stall",
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"BBB CSW, 1st attempt",
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"BBB CSW bulk-in clear stall",
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"BBB CSW, 2nd attempt",
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"BBB Reset",
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"BBB bulk-in clear stall",
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"BBB bulk-out clear stall",
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"CBI Command",
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"CBI Data",
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"CBI Status",
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"CBI Data bulk-in/-out clear stall",
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"CBI Status intr-in clear stall",
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"CBI Reset",
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"CBI bulk-in clear stall",
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"CBI bulk-out clear stall",
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NULL
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};
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#endif
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struct cam_sim *umass_sim; /* SCSI Interface Module */
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/* USB device probe/attach/detach functions */
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USB_DECLARE_DRIVER(umass);
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Static int umass_match_proto __P((struct umass_softc *sc,
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usbd_interface_handle iface,
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usbd_device_handle udev));
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/* quirk functions */
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Static void umass_init_shuttle __P((struct umass_softc *sc));
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/* generic transfer functions */
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Static usbd_status umass_setup_transfer __P((struct umass_softc *sc,
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usbd_pipe_handle pipe,
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void *buffer, int buflen, int flags,
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usbd_xfer_handle xfer));
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Static usbd_status umass_setup_ctrl_transfer __P((struct umass_softc *sc,
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usbd_device_handle udev,
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usb_device_request_t *req,
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void *buffer, int buflen, int flags,
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usbd_xfer_handle xfer));
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Static void umass_clear_endpoint_stall __P((struct umass_softc *sc,
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u_int8_t endpt, usbd_pipe_handle pipe,
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int state, usbd_xfer_handle xfer));
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Static void umass_reset __P((struct umass_softc *sc,
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transfer_cb_f cb, void *priv));
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/* Bulk-Only related functions */
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Static void umass_bbb_reset __P((struct umass_softc *sc, int status));
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Static void umass_bbb_transfer __P((struct umass_softc *sc, int lun,
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void *cmd, int cmdlen,
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void *data, int datalen, int dir,
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transfer_cb_f cb, void *priv));
|
|
Static void umass_bbb_state __P((usbd_xfer_handle xfer,
|
|
usbd_private_handle priv,
|
|
usbd_status err));
|
|
Static int umass_bbb_get_max_lun
|
|
__P((struct umass_softc *sc));
|
|
|
|
/* CBI related functions */
|
|
Static int umass_cbi_adsc __P((struct umass_softc *sc,
|
|
char *buffer, int buflen,
|
|
usbd_xfer_handle xfer));
|
|
Static void umass_cbi_reset __P((struct umass_softc *sc, int status));
|
|
Static void umass_cbi_transfer __P((struct umass_softc *sc, int lun,
|
|
void *cmd, int cmdlen,
|
|
void *data, int datalen, int dir,
|
|
transfer_cb_f cb, void *priv));
|
|
Static void umass_cbi_state __P((usbd_xfer_handle xfer,
|
|
usbd_private_handle priv, usbd_status err));
|
|
|
|
/* CAM related functions */
|
|
Static void umass_cam_action __P((struct cam_sim *sim, union ccb *ccb));
|
|
Static void umass_cam_poll __P((struct cam_sim *sim));
|
|
|
|
Static void umass_cam_cb __P((struct umass_softc *sc, void *priv,
|
|
int residue, int status));
|
|
Static void umass_cam_sense_cb __P((struct umass_softc *sc, void *priv,
|
|
int residue, int status));
|
|
|
|
Static void umass_cam_rescan_callback
|
|
__P((struct cam_periph *periph,union ccb *ccb));
|
|
Static void umass_cam_rescan __P((struct umass_softc *sc));
|
|
|
|
Static int umass_cam_attach_sim __P((void));
|
|
Static int umass_cam_attach __P((struct umass_softc *sc));
|
|
Static int umass_cam_detach_sim __P((void));
|
|
Static int umass_cam_detach __P((struct umass_softc *sc));
|
|
|
|
|
|
/* SCSI specific functions */
|
|
Static int umass_scsi_transform __P((struct umass_softc *sc,
|
|
unsigned char *cmd, int cmdlen,
|
|
unsigned char **rcmd, int *rcmdlen));
|
|
|
|
/* UFI specific functions */
|
|
#define UFI_COMMAND_LENGTH 12 /* UFI commands are always 12b */
|
|
Static int umass_ufi_transform __P((struct umass_softc *sc,
|
|
unsigned char *cmd, int cmdlen,
|
|
unsigned char **rcmd, int *rcmdlen));
|
|
|
|
/* ATAPI (8070i) specific functions */
|
|
#define ATAPI_COMMAND_LENGTH 12 /* ATAPI commands are always 12b */
|
|
Static int umass_atapi_transform __P((struct umass_softc *sc,
|
|
unsigned char *cmd, int cmdlen,
|
|
unsigned char **rcmd, int *rcmdlen));
|
|
|
|
|
|
#ifdef UMASS_DEBUG
|
|
/* General debugging functions */
|
|
Static void umass_bbb_dump_cbw __P((struct umass_softc *sc,
|
|
umass_bbb_cbw_t *cbw));
|
|
Static void umass_bbb_dump_csw __P((struct umass_softc *sc,
|
|
umass_bbb_csw_t *csw));
|
|
Static void umass_dump_buffer __P((struct umass_softc *sc, u_int8_t *buffer,
|
|
int buflen, int printlen));
|
|
#endif
|
|
|
|
|
|
/*
|
|
* USB device probe/attach/detach
|
|
*/
|
|
|
|
/*
|
|
* Match the device we are seeing with the devices supported. Fill in the
|
|
* proto and drive fields in the softc accordingly.
|
|
* This function is called from both probe and attach.
|
|
*/
|
|
|
|
Static int
|
|
umass_match_proto(struct umass_softc *sc, usbd_interface_handle iface,
|
|
usbd_device_handle udev)
|
|
{
|
|
usb_device_descriptor_t *dd;
|
|
usb_interface_descriptor_t *id;
|
|
|
|
sc->sc_udev = udev;
|
|
|
|
/*
|
|
* Fill in sc->drive and sc->proto and return a match
|
|
* value if both are determined and 0 otherwise.
|
|
*/
|
|
|
|
sc->drive = DRIVE_GENERIC;
|
|
sc->proto = PROTO_UNKNOWN;
|
|
sc->transfer_speed = UMASS_DEFAULT_TRANSFER_SPEED;
|
|
|
|
dd = usbd_get_device_descriptor(udev);
|
|
|
|
if (UGETW(dd->idVendor) == USB_VENDOR_SHUTTLE
|
|
&& UGETW(dd->idProduct) == USB_PRODUCT_SHUTTLE_EUSB) {
|
|
sc->drive = SHUTTLE_EUSB;
|
|
#if CBI_I
|
|
sc->proto = PROTO_ATAPI | PROTO_CBI_I;
|
|
#else
|
|
sc->proto = PROTO_ATAPI | PROTO_CBI;
|
|
#endif
|
|
sc->quirks |= NO_TEST_UNIT_READY | NO_START_STOP;
|
|
return(UMATCH_VENDOR_PRODUCT);
|
|
}
|
|
|
|
if (UGETW(dd->idVendor) == USB_VENDOR_INSYSTEM
|
|
&& UGETW(dd->idProduct) == USB_PRODUCT_INSYSTEM_USBCABLE) {
|
|
sc->drive = INSYSTEM_USBCABLE;
|
|
sc->proto = PROTO_ATAPI | PROTO_CBI;
|
|
sc->quirks |= NO_TEST_UNIT_READY | NO_START_STOP;
|
|
return(UMATCH_VENDOR_PRODUCT);
|
|
}
|
|
|
|
if (UGETW(dd->idVendor) == USB_VENDOR_YEDATA
|
|
&& UGETW(dd->idProduct) == USB_PRODUCT_YEDATA_FLASHBUSTERU) {
|
|
|
|
/* Revisions < 1.28 do not handle the inerrupt endpoint
|
|
* very well.
|
|
*/
|
|
if (UGETW(dd->bcdDevice) < 0x128) {
|
|
sc->proto = PROTO_UFI | PROTO_CBI;
|
|
} else {
|
|
#if CBI_I
|
|
sc->proto = PROTO_UFI | PROTO_CBI_I;
|
|
#else
|
|
sc->proto = PROTO_UFI | PROTO_CBI;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Revisions < 1.28 do not have the TEST UNIT READY command
|
|
* Revisions == 1.28 have a broken TEST UNIT READY
|
|
*/
|
|
if (UGETW(dd->bcdDevice) <= 0x128)
|
|
sc->quirks |= NO_TEST_UNIT_READY;
|
|
|
|
sc->quirks |= RS_NO_CLEAR_UA;
|
|
sc->transfer_speed = UMASS_FLOPPY_TRANSFER_SPEED;
|
|
return(UMATCH_VENDOR_PRODUCT);
|
|
}
|
|
|
|
id = usbd_get_interface_descriptor(iface);
|
|
if (id == NULL || id->bInterfaceClass != UCLASS_MASS)
|
|
return(UMATCH_NONE);
|
|
|
|
switch (id->bInterfaceSubClass) {
|
|
case USUBCLASS_SCSI:
|
|
sc->proto |= PROTO_SCSI;
|
|
break;
|
|
case USUBCLASS_UFI:
|
|
sc->transfer_speed = UMASS_FLOPPY_TRANSFER_SPEED;
|
|
sc->proto |= PROTO_UFI;
|
|
break;
|
|
case USUBCLASS_SFF8020I:
|
|
case USUBCLASS_SFF8070I:
|
|
sc->proto |= PROTO_ATAPI;
|
|
break;
|
|
default:
|
|
DPRINTF(UDMASS_GEN, ("%s: Unsupported command protocol %d\n",
|
|
USBDEVNAME(sc->sc_dev), id->bInterfaceSubClass));
|
|
return(UMATCH_NONE);
|
|
}
|
|
|
|
switch (id->bInterfaceProtocol) {
|
|
case UPROTO_MASS_CBI:
|
|
sc->proto |= PROTO_CBI;
|
|
break;
|
|
case UPROTO_MASS_CBI_I:
|
|
#if CBI_I
|
|
sc->proto |= PROTO_CBI_I;
|
|
#else
|
|
sc->proto |= PROTO_CBI;
|
|
#endif
|
|
break;
|
|
case UPROTO_MASS_BBB:
|
|
sc->proto |= PROTO_BBB;
|
|
break;
|
|
case UPROTO_MASS_BBB_P:
|
|
sc->drive = ZIP_100;
|
|
sc->proto |= PROTO_BBB;
|
|
sc->transfer_speed = UMASS_ZIP100_TRANSFER_SPEED;
|
|
sc->quirks |= NO_TEST_UNIT_READY;
|
|
break;
|
|
default:
|
|
DPRINTF(UDMASS_GEN, ("%s: Unsupported wire protocol %d\n",
|
|
USBDEVNAME(sc->sc_dev), id->bInterfaceProtocol));
|
|
return(UMATCH_NONE);
|
|
}
|
|
|
|
return(UMATCH_DEVCLASS_DEVSUBCLASS_DEVPROTO);
|
|
}
|
|
|
|
USB_MATCH(umass)
|
|
{
|
|
USB_MATCH_START(umass, uaa);
|
|
struct umass_softc *sc = device_get_softc(self);
|
|
|
|
if (uaa->iface == NULL)
|
|
return(UMATCH_NONE);
|
|
|
|
return(umass_match_proto(sc, uaa->iface, uaa->device));
|
|
}
|
|
|
|
USB_ATTACH(umass)
|
|
{
|
|
USB_ATTACH_START(umass, sc, uaa);
|
|
usb_interface_descriptor_t *id;
|
|
usb_endpoint_descriptor_t *ed;
|
|
char devinfo[1024];
|
|
int i;
|
|
int err;
|
|
|
|
/*
|
|
* the softc struct is bzero-ed in device_set_driver. We can safely
|
|
* call umass_detach without specifically initialising the struct.
|
|
*/
|
|
|
|
usbd_devinfo(uaa->device, 0, devinfo);
|
|
USB_ATTACH_SETUP;
|
|
|
|
sc->iface = uaa->iface;
|
|
sc->ifaceno = uaa->ifaceno;
|
|
|
|
/* initialise the proto and drive values in the umass_softc (again) */
|
|
(void) umass_match_proto(sc, sc->iface, uaa->device);
|
|
|
|
id = usbd_get_interface_descriptor(sc->iface);
|
|
printf("%s: %s", USBDEVNAME(sc->sc_dev), devinfo);
|
|
#ifdef UMASS_DEBUG
|
|
printf(", ");
|
|
switch (sc->proto&PROTO_COMMAND) {
|
|
case PROTO_SCSI:
|
|
printf("SCSI");
|
|
break;
|
|
case PROTO_ATAPI:
|
|
printf("8070i (ATAPI)");
|
|
break;
|
|
case PROTO_UFI:
|
|
printf("UFI");
|
|
break;
|
|
default:
|
|
printf("(unknown 0x%02x)", sc->proto&PROTO_COMMAND);
|
|
break;
|
|
}
|
|
printf(" over ");
|
|
switch (sc->proto&PROTO_WIRE) {
|
|
case PROTO_BBB:
|
|
printf("Bulk-Only");
|
|
break;
|
|
case PROTO_CBI: /* uses Comand/Bulk pipes */
|
|
printf("CBI");
|
|
break;
|
|
case PROTO_CBI_I: /* uses Comand/Bulk/Interrupt pipes */
|
|
printf("CBI with CCI");
|
|
break;
|
|
default:
|
|
printf("(unknown 0x%02x)", sc->proto&PROTO_WIRE);
|
|
}
|
|
#endif
|
|
printf("\n");
|
|
|
|
if (sc->drive == INSYSTEM_USBCABLE) {
|
|
err = usbd_set_interface(0, 1);
|
|
if (err) {
|
|
DPRINTF(UDMASS_USB, ("%s: could not switch to "
|
|
"Alt Interface %d\n",
|
|
USBDEVNAME(sc->sc_dev), 1));
|
|
umass_detach(self);
|
|
USB_ATTACH_ERROR_RETURN;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* In addition to the Control endpoint the following endpoints
|
|
* are required:
|
|
* a) bulk-in endpoint.
|
|
* b) bulk-out endpoint.
|
|
* and for Control/Bulk/Interrupt with CCI (CBI_I)
|
|
* c) intr-in
|
|
*
|
|
* The endpoint addresses are not fixed, so we have to read them
|
|
* from the device descriptors of the current interface.
|
|
*/
|
|
for (i = 0 ; i < id->bNumEndpoints ; i++) {
|
|
ed = usbd_interface2endpoint_descriptor(sc->iface, i);
|
|
if (!ed) {
|
|
printf("%s: could not read endpoint descriptor\n",
|
|
USBDEVNAME(sc->sc_dev));
|
|
USB_ATTACH_ERROR_RETURN;
|
|
}
|
|
if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN
|
|
&& (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
|
|
sc->bulkin = ed->bEndpointAddress;
|
|
} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT
|
|
&& (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
|
|
sc->bulkout = ed->bEndpointAddress;
|
|
} else if (sc->proto & PROTO_CBI_I
|
|
&& UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN
|
|
&& (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) {
|
|
sc->intrin = ed->bEndpointAddress;
|
|
#ifdef UMASS_DEBUG
|
|
if (UGETW(ed->wMaxPacketSize) > 2) {
|
|
DPRINTF(UDMASS_CBI, ("%s: intr size is %d\n",
|
|
USBDEVNAME(sc->sc_dev),
|
|
UGETW(ed->wMaxPacketSize)));
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/* check whether we found all the endpoints we need */
|
|
if (!sc->bulkin || !sc->bulkout
|
|
|| (sc->proto & PROTO_CBI_I && !sc->intrin) ) {
|
|
DPRINTF(UDMASS_USB, ("%s: endpoint not found %d/%d/%d\n",
|
|
USBDEVNAME(sc->sc_dev),
|
|
sc->bulkin, sc->bulkout, sc->intrin));
|
|
umass_detach(self);
|
|
USB_ATTACH_ERROR_RETURN;
|
|
}
|
|
|
|
/* Open the bulk-in and -out pipe */
|
|
err = usbd_open_pipe(sc->iface, sc->bulkout,
|
|
USBD_EXCLUSIVE_USE, &sc->bulkout_pipe);
|
|
if (err) {
|
|
DPRINTF(UDMASS_USB, ("%s: cannot open %d-out pipe (bulk)\n",
|
|
USBDEVNAME(sc->sc_dev), sc->bulkout));
|
|
umass_detach(self);
|
|
USB_ATTACH_ERROR_RETURN;
|
|
}
|
|
err = usbd_open_pipe(sc->iface, sc->bulkin,
|
|
USBD_EXCLUSIVE_USE, &sc->bulkin_pipe);
|
|
if (err) {
|
|
DPRINTF(UDMASS_USB, ("%s: could not open %d-in pipe (bulk)\n",
|
|
USBDEVNAME(sc->sc_dev), sc->bulkin));
|
|
umass_detach(self);
|
|
USB_ATTACH_ERROR_RETURN;
|
|
}
|
|
/* Open the intr-in pipe if the protocol is CBI with CCI.
|
|
* Note: early versions of the Zip drive do have an interrupt pipe, but
|
|
* this pipe is unused
|
|
*
|
|
* We do not open the interrupt pipe as an interrupt pipe, but as a
|
|
* normal bulk endpoint. We send an IN transfer down the wire at the
|
|
* appropriate time, because we know exactly when to expect data on
|
|
* that endpoint. This saves bandwidth, but more important, makes the
|
|
* code for handling the data on that endpoint simpler. No data
|
|
* arriving concurently.
|
|
*/
|
|
if (sc->proto & PROTO_CBI_I) {
|
|
err = usbd_open_pipe(sc->iface, sc->intrin,
|
|
USBD_EXCLUSIVE_USE, &sc->intrin_pipe);
|
|
if (err) {
|
|
DPRINTF(UDMASS_USB, ("%s: couldn't open %d-in (intr)\n",
|
|
USBDEVNAME(sc->sc_dev), sc->intrin));
|
|
umass_detach(self);
|
|
USB_ATTACH_ERROR_RETURN;
|
|
}
|
|
}
|
|
|
|
/* initialisation of generic part */
|
|
sc->transfer_state = TSTATE_IDLE;
|
|
|
|
/* request a sufficient number of xfer handles */
|
|
for (i = 0; i < XFER_NR; i++) {
|
|
sc->transfer_xfer[i] = usbd_alloc_xfer(uaa->device);
|
|
if (!sc->transfer_xfer[i]) {
|
|
DPRINTF(UDMASS_USB, ("%s: Out of memory\n",
|
|
USBDEVNAME(sc->sc_dev)));
|
|
umass_detach(self);
|
|
USB_ATTACH_ERROR_RETURN;
|
|
}
|
|
}
|
|
|
|
/* Initialise the wire protocol specific methods */
|
|
if (sc->proto & PROTO_BBB) {
|
|
sc->reset = umass_bbb_reset;
|
|
sc->transfer = umass_bbb_transfer;
|
|
sc->state = umass_bbb_state;
|
|
} else if ((sc->proto & PROTO_CBI) || (sc->proto & PROTO_CBI_I)) {
|
|
sc->reset = umass_cbi_reset;
|
|
sc->transfer = umass_cbi_transfer;
|
|
sc->state = umass_cbi_state;
|
|
#ifdef UMASS_DEBUG
|
|
} else {
|
|
panic("%s:%d: Unknown proto 0x%02x\n",
|
|
__FILE__, __LINE__, sc->proto);
|
|
#endif
|
|
}
|
|
|
|
if (sc->proto & PROTO_SCSI)
|
|
sc->transform = umass_scsi_transform;
|
|
else if (sc->proto & PROTO_UFI)
|
|
sc->transform = umass_ufi_transform;
|
|
else if (sc->proto & PROTO_ATAPI)
|
|
sc->transform = umass_atapi_transform;
|
|
#ifdef UMASS_DEBUG
|
|
else
|
|
panic("No transformation defined for command proto 0x%02x\n",
|
|
sc->proto & PROTO_COMMAND);
|
|
#endif
|
|
|
|
/* From here onwards the device can be used. */
|
|
|
|
if (sc->drive == SHUTTLE_EUSB)
|
|
umass_init_shuttle(sc);
|
|
|
|
/* Get the maximum LUN supported by the device.
|
|
*/
|
|
if ((sc->proto & PROTO_WIRE) == PROTO_BBB)
|
|
sc->maxlun = umass_bbb_get_max_lun(sc);
|
|
else
|
|
sc->maxlun = 0;
|
|
|
|
if ((sc->proto & PROTO_SCSI) ||
|
|
(sc->proto & PROTO_ATAPI) ||
|
|
(sc->proto & PROTO_UFI)) {
|
|
/* Prepare the SCSI command block */
|
|
sc->cam_scsi_sense.opcode = REQUEST_SENSE;
|
|
|
|
/* If this is the first device register the SIM */
|
|
if (umass_sim == NULL) {
|
|
err = umass_cam_attach_sim();
|
|
if (err) {
|
|
umass_detach(self);
|
|
USB_ATTACH_ERROR_RETURN;
|
|
}
|
|
}
|
|
|
|
/* Attach the new device to our SCSI host controller (SIM) */
|
|
err = umass_cam_attach(sc);
|
|
if (err) {
|
|
umass_detach(self);
|
|
USB_ATTACH_ERROR_RETURN;
|
|
}
|
|
} else {
|
|
panic("%s:%d: Unknown proto 0x%02x\n",
|
|
__FILE__, __LINE__, sc->proto);
|
|
}
|
|
|
|
|
|
DPRINTF(UDMASS_GEN, ("%s: Attach finished\n", USBDEVNAME(sc->sc_dev)));
|
|
|
|
USB_ATTACH_SUCCESS_RETURN;
|
|
}
|
|
|
|
USB_DETACH(umass)
|
|
{
|
|
USB_DETACH_START(umass, sc);
|
|
int err = 0;
|
|
int i;
|
|
|
|
DPRINTF(UDMASS_USB, ("%s: detached\n", USBDEVNAME(sc->sc_dev)));
|
|
|
|
sc->flags |= UMASS_FLAGS_GONE;
|
|
|
|
if ((sc->proto & PROTO_SCSI) ||
|
|
(sc->proto & PROTO_ATAPI) ||
|
|
(sc->proto & PROTO_UFI))
|
|
/* detach the device from the SCSI host controller (SIM) */
|
|
err = umass_cam_detach(sc);
|
|
|
|
for (i = 0; i < XFER_NR; i++)
|
|
if (sc->transfer_xfer[i])
|
|
usbd_free_xfer(sc->transfer_xfer[i]);
|
|
|
|
/* remove all the pipes */
|
|
if (sc->bulkout_pipe)
|
|
usbd_close_pipe(sc->bulkout_pipe);
|
|
if (sc->bulkin_pipe)
|
|
usbd_close_pipe(sc->bulkin_pipe);
|
|
if (sc->intrin_pipe)
|
|
usbd_close_pipe(sc->intrin_pipe);
|
|
|
|
return(err);
|
|
}
|
|
|
|
Static void
|
|
umass_init_shuttle(struct umass_softc *sc)
|
|
{
|
|
usb_device_request_t req;
|
|
u_char status[2];
|
|
|
|
/* The Linux driver does this, but no one can tell us what the
|
|
* command does.
|
|
*/
|
|
req.bmRequestType = UT_READ_VENDOR_DEVICE;
|
|
req.bRequest = 1;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, sc->ifaceno);
|
|
USETW(req.wLength, sizeof status);
|
|
(void) usbd_do_request(sc->sc_udev, &req, &status);
|
|
}
|
|
|
|
/*
|
|
* Generic functions to handle transfers
|
|
*/
|
|
|
|
Static usbd_status
|
|
umass_setup_transfer(struct umass_softc *sc, usbd_pipe_handle pipe,
|
|
void *buffer, int buflen, int flags,
|
|
usbd_xfer_handle xfer)
|
|
{
|
|
usbd_status err;
|
|
|
|
/* Initialiase a USB transfer and then schedule it */
|
|
|
|
(void) usbd_setup_xfer(xfer, pipe, (void *) sc, buffer, buflen, flags,
|
|
UMASS_TIMEOUT, sc->state);
|
|
|
|
err = usbd_transfer(xfer);
|
|
if (err && err != USBD_IN_PROGRESS) {
|
|
DPRINTF(UDMASS_BBB, ("%s: failed to setup transfer, %s\n",
|
|
USBDEVNAME(sc->sc_dev), usbd_errstr(err)));
|
|
return(err);
|
|
}
|
|
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
|
|
|
|
Static usbd_status
|
|
umass_setup_ctrl_transfer(struct umass_softc *sc, usbd_device_handle udev,
|
|
usb_device_request_t *req,
|
|
void *buffer, int buflen, int flags,
|
|
usbd_xfer_handle xfer)
|
|
{
|
|
usbd_status err;
|
|
|
|
/* Initialiase a USB control transfer and then schedule it */
|
|
|
|
(void) usbd_setup_default_xfer(xfer, udev, (void *) sc,
|
|
UMASS_TIMEOUT, req, buffer, buflen, flags, sc->state);
|
|
|
|
err = usbd_transfer(xfer);
|
|
if (err && err != USBD_IN_PROGRESS) {
|
|
DPRINTF(UDMASS_BBB, ("%s: failed to setup ctrl transfer, %s\n",
|
|
USBDEVNAME(sc->sc_dev), usbd_errstr(err)));
|
|
|
|
/* do not reset, as this would make us loop */
|
|
return(err);
|
|
}
|
|
|
|
return (USBD_NORMAL_COMPLETION);
|
|
}
|
|
|
|
Static void
|
|
umass_clear_endpoint_stall(struct umass_softc *sc,
|
|
u_int8_t endpt, usbd_pipe_handle pipe,
|
|
int state, usbd_xfer_handle xfer)
|
|
{
|
|
usbd_device_handle udev;
|
|
|
|
DPRINTF(UDMASS_BBB, ("%s: Clear endpoint 0x%02x stall\n",
|
|
USBDEVNAME(sc->sc_dev), endpt));
|
|
|
|
usbd_interface2device_handle(sc->iface, &udev);
|
|
|
|
sc->transfer_state = state;
|
|
|
|
usbd_clear_endpoint_toggle(pipe);
|
|
|
|
sc->request.bmRequestType = UT_WRITE_ENDPOINT;
|
|
sc->request.bRequest = UR_CLEAR_FEATURE;
|
|
USETW(sc->request.wValue, UF_ENDPOINT_HALT);
|
|
USETW(sc->request.wIndex, endpt);
|
|
USETW(sc->request.wLength, 0);
|
|
umass_setup_ctrl_transfer(sc, udev, &sc->request, NULL, 0, 0, xfer);
|
|
}
|
|
|
|
Static void
|
|
umass_reset(struct umass_softc *sc, transfer_cb_f cb, void *priv)
|
|
{
|
|
sc->transfer_cb = cb;
|
|
sc->transfer_priv = priv;
|
|
|
|
/* The reset is a forced reset, so no error (yet) */
|
|
sc->reset(sc, STATUS_CMD_OK);
|
|
}
|
|
|
|
/*
|
|
* Bulk protocol specific functions
|
|
*/
|
|
|
|
Static void
|
|
umass_bbb_reset(struct umass_softc *sc, int status)
|
|
{
|
|
usbd_device_handle udev;
|
|
|
|
KASSERT(sc->proto & PROTO_BBB,
|
|
("sc->proto == 0x%02x wrong for umass_bbb_reset\n", sc->proto));
|
|
|
|
/*
|
|
* Reset recovery (5.3.4 in Universal Serial Bus Mass Storage Class)
|
|
*
|
|
* For Reset Recovery the host shall issue in the following order:
|
|
* a) a Bulk-Only Mass Storage Reset
|
|
* b) a Clear Feature HALT to the Bulk-In endpoint
|
|
* c) a Clear Feature HALT to the Bulk-Out endpoint
|
|
*
|
|
* This is done in 3 steps, states:
|
|
* TSTATE_BBB_RESET1
|
|
* TSTATE_BBB_RESET2
|
|
* TSTATE_BBB_RESET3
|
|
*
|
|
* If the reset doesn't succeed, the device should be port reset.
|
|
*/
|
|
|
|
DPRINTF(UDMASS_BBB, ("%s: Bulk Reset\n",
|
|
USBDEVNAME(sc->sc_dev)));
|
|
|
|
sc->transfer_state = TSTATE_BBB_RESET1;
|
|
sc->transfer_status = status;
|
|
|
|
usbd_interface2device_handle(sc->iface, &udev);
|
|
|
|
/* reset is a class specific interface write */
|
|
sc->request.bmRequestType = UT_WRITE_CLASS_INTERFACE;
|
|
sc->request.bRequest = UR_BBB_RESET;
|
|
USETW(sc->request.wValue, 0);
|
|
USETW(sc->request.wIndex, sc->ifaceno);
|
|
USETW(sc->request.wLength, 0);
|
|
umass_setup_ctrl_transfer(sc, udev, &sc->request, NULL, 0, 0,
|
|
sc->transfer_xfer[XFER_BBB_RESET1]);
|
|
}
|
|
|
|
Static void
|
|
umass_bbb_transfer(struct umass_softc *sc, int lun, void *cmd, int cmdlen,
|
|
void *data, int datalen, int dir,
|
|
transfer_cb_f cb, void *priv)
|
|
{
|
|
KASSERT(sc->proto & PROTO_BBB,
|
|
("sc->proto == 0x%02x wrong for umass_bbb_transfer\n",
|
|
sc->proto));
|
|
|
|
/*
|
|
* Do a Bulk-Only transfer with cmdlen bytes from cmd, possibly
|
|
* a data phase of datalen bytes from/to the device and finally a
|
|
* csw read phase.
|
|
* If the data direction was inbound a maximum of datalen bytes
|
|
* is stored in the buffer pointed to by data.
|
|
*
|
|
* umass_bbb_transfer initialises the transfer and lets the state
|
|
* machine in umass_bbb_state handle the completion. It uses the
|
|
* following states:
|
|
* TSTATE_BBB_COMMAND
|
|
* -> TSTATE_BBB_DATA
|
|
* -> TSTATE_BBB_STATUS
|
|
* -> TSTATE_BBB_STATUS2
|
|
* -> TSTATE_BBB_IDLE
|
|
*
|
|
* An error in any of those states will invoke
|
|
* umass_bbb_reset.
|
|
*/
|
|
|
|
/* check the given arguments */
|
|
KASSERT(datalen == 0 || data != NULL,
|
|
("%s: datalen > 0, but no buffer",USBDEVNAME(sc->sc_dev)));
|
|
KASSERT(cmdlen <= CBWCDBLENGTH,
|
|
("%s: cmdlen exceeds CDB length in CBW (%d > %d)",
|
|
USBDEVNAME(sc->sc_dev), cmdlen, CBWCDBLENGTH));
|
|
KASSERT(dir == DIR_NONE || datalen > 0,
|
|
("%s: datalen == 0 while direction is not NONE\n",
|
|
USBDEVNAME(sc->sc_dev)));
|
|
KASSERT(datalen == 0 || dir != DIR_NONE,
|
|
("%s: direction is NONE while datalen is not zero\n",
|
|
USBDEVNAME(sc->sc_dev)));
|
|
KASSERT(sizeof(umass_bbb_cbw_t) == UMASS_BBB_CBW_SIZE,
|
|
("%s: CBW struct does not have the right size (%d vs. %d)\n",
|
|
USBDEVNAME(sc->sc_dev),
|
|
sizeof(umass_bbb_cbw_t), UMASS_BBB_CBW_SIZE));
|
|
KASSERT(sizeof(umass_bbb_csw_t) == UMASS_BBB_CSW_SIZE,
|
|
("%s: CSW struct does not have the right size (%d vs. %d)\n",
|
|
USBDEVNAME(sc->sc_dev),
|
|
sizeof(umass_bbb_csw_t), UMASS_BBB_CSW_SIZE));
|
|
|
|
/*
|
|
* Determine the direction of the data transfer and the length.
|
|
*
|
|
* dCBWDataTransferLength (datalen) :
|
|
* This field indicates the number of bytes of data that the host
|
|
* intends to transfer on the IN or OUT Bulk endpoint(as indicated by
|
|
* the Direction bit) during the execution of this command. If this
|
|
* field is set to 0, the device will expect that no data will be
|
|
* transferred IN or OUT during this command, regardless of the value
|
|
* of the Direction bit defined in dCBWFlags.
|
|
*
|
|
* dCBWFlags (dir) :
|
|
* The bits of the Flags field are defined as follows:
|
|
* Bits 0-6 reserved
|
|
* Bit 7 Direction - this bit shall be ignored if the
|
|
* dCBWDataTransferLength field is zero.
|
|
* 0 = data Out from host to device
|
|
* 1 = data In from device to host
|
|
*/
|
|
|
|
/* Fill in the Command Block Wrapper
|
|
* We fill in all the fields, so there is no need to bzero it first.
|
|
*/
|
|
USETDW(sc->cbw.dCBWSignature, CBWSIGNATURE);
|
|
/* We don't care what the initial value was, as long as the values are unique */
|
|
USETDW(sc->cbw.dCBWTag, UGETDW(sc->cbw.dCBWTag) + 1);
|
|
USETDW(sc->cbw.dCBWDataTransferLength, datalen);
|
|
/* DIR_NONE is treated as DIR_OUT (0x00) */
|
|
sc->cbw.bCBWFlags = (dir == DIR_IN? CBWFLAGS_IN:CBWFLAGS_OUT);
|
|
sc->cbw.bCBWLUN = lun;
|
|
sc->cbw.bCDBLength = cmdlen;
|
|
bcopy(cmd, sc->cbw.CBWCDB, cmdlen);
|
|
|
|
DIF(UDMASS_BBB, umass_bbb_dump_cbw(sc, &sc->cbw));
|
|
|
|
/* store the details for the data transfer phase */
|
|
sc->transfer_dir = dir;
|
|
sc->transfer_data = data;
|
|
sc->transfer_datalen = datalen;
|
|
sc->transfer_actlen = 0;
|
|
sc->transfer_cb = cb;
|
|
sc->transfer_priv = priv;
|
|
sc->transfer_status = STATUS_CMD_OK;
|
|
|
|
/* move from idle to the command state */
|
|
sc->transfer_state = TSTATE_BBB_COMMAND;
|
|
|
|
/* Send the CBW from host to device via bulk-out endpoint. */
|
|
if (umass_setup_transfer(sc, sc->bulkout_pipe,
|
|
&sc->cbw, UMASS_BBB_CBW_SIZE, 0,
|
|
sc->transfer_xfer[XFER_BBB_CBW])) {
|
|
umass_bbb_reset(sc, STATUS_WIRE_FAILED);
|
|
}
|
|
}
|
|
|
|
|
|
Static void
|
|
umass_bbb_state(usbd_xfer_handle xfer, usbd_private_handle priv,
|
|
usbd_status err)
|
|
{
|
|
struct umass_softc *sc = (struct umass_softc *) priv;
|
|
usbd_xfer_handle next_xfer;
|
|
|
|
KASSERT(sc->proto & PROTO_BBB,
|
|
("sc->proto == 0x%02x wrong for umass_bbb_state\n",sc->proto));
|
|
|
|
/*
|
|
* State handling for BBB transfers.
|
|
*
|
|
* The subroutine is rather long. It steps through the states given in
|
|
* Annex A of the Bulk-Only specification.
|
|
* Each state first does the error handling of the previous transfer
|
|
* and then prepares the next transfer.
|
|
* Each transfer is done asynchroneously so after the request/transfer
|
|
* has been submitted you will find a 'return;'.
|
|
*/
|
|
|
|
DPRINTF(UDMASS_BBB, ("%s: Handling BBB state %d (%s), xfer=%p, %s\n",
|
|
USBDEVNAME(sc->sc_dev), sc->transfer_state,
|
|
states[sc->transfer_state], xfer, usbd_errstr(err)));
|
|
|
|
switch (sc->transfer_state) {
|
|
|
|
/***** Bulk Transfer *****/
|
|
case TSTATE_BBB_COMMAND:
|
|
/* Command transport phase, error handling */
|
|
if (err) {
|
|
DPRINTF(UDMASS_BBB, ("%s: failed to send CBW\n",
|
|
USBDEVNAME(sc->sc_dev)));
|
|
/* If the device detects that the CBW is invalid, then
|
|
* the device may STALL both bulk endpoints and require
|
|
* a Bulk-Reset
|
|
*/
|
|
umass_bbb_reset(sc, STATUS_WIRE_FAILED);
|
|
return;
|
|
}
|
|
|
|
/* Data transport phase, setup transfer */
|
|
sc->transfer_state = TSTATE_BBB_DATA;
|
|
if (sc->transfer_dir == DIR_IN) {
|
|
if (umass_setup_transfer(sc, sc->bulkin_pipe,
|
|
sc->transfer_data, sc->transfer_datalen,
|
|
USBD_SHORT_XFER_OK,
|
|
sc->transfer_xfer[XFER_BBB_DATA]))
|
|
umass_bbb_reset(sc, STATUS_WIRE_FAILED);
|
|
|
|
return;
|
|
} else if (sc->transfer_dir == DIR_OUT) {
|
|
if (umass_setup_transfer(sc, sc->bulkout_pipe,
|
|
sc->transfer_data, sc->transfer_datalen,
|
|
0, /* fixed length transfer */
|
|
sc->transfer_xfer[XFER_BBB_DATA]))
|
|
umass_bbb_reset(sc, STATUS_WIRE_FAILED);
|
|
|
|
return;
|
|
} else {
|
|
DPRINTF(UDMASS_BBB, ("%s: no data phase\n",
|
|
USBDEVNAME(sc->sc_dev)));
|
|
}
|
|
|
|
/* FALLTHROUGH if no data phase, err == 0 */
|
|
case TSTATE_BBB_DATA:
|
|
/* Command transport phase, error handling (ignored if no data
|
|
* phase (fallthrough from previous state)) */
|
|
if (sc->transfer_dir != DIR_NONE) {
|
|
/* retrieve the length of the transfer that was done */
|
|
usbd_get_xfer_status(xfer, NULL, NULL,
|
|
&sc->transfer_actlen, NULL);
|
|
|
|
if (err) {
|
|
DPRINTF(UDMASS_BBB, ("%s: Data-%s %db failed, "
|
|
"%s\n", USBDEVNAME(sc->sc_dev),
|
|
(sc->transfer_dir == DIR_IN?"in":"out"),
|
|
sc->transfer_datalen,usbd_errstr(err)));
|
|
|
|
if (err == USBD_STALLED) {
|
|
umass_clear_endpoint_stall(sc,
|
|
(sc->transfer_dir == DIR_IN?
|
|
sc->bulkin:sc->bulkout),
|
|
(sc->transfer_dir == DIR_IN?
|
|
sc->bulkin_pipe:sc->bulkout_pipe),
|
|
TSTATE_BBB_DCLEAR,
|
|
sc->transfer_xfer[XFER_BBB_DCLEAR]);
|
|
return;
|
|
} else {
|
|
/* Unless the error is a pipe stall the
|
|
* error is fatal.
|
|
*/
|
|
umass_bbb_reset(sc,STATUS_WIRE_FAILED);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
DIF(UDMASS_BBB, if (sc->transfer_dir == DIR_IN)
|
|
umass_dump_buffer(sc, sc->transfer_data,
|
|
sc->transfer_datalen, 48));
|
|
|
|
|
|
|
|
/* FALLTHROUGH, err == 0 (no data phase or successfull) */
|
|
case TSTATE_BBB_DCLEAR: /* stall clear after data phase */
|
|
case TSTATE_BBB_SCLEAR: /* stall clear after status phase */
|
|
/* Reading of CSW after bulk stall condition in data phase
|
|
* (TSTATE_BBB_DATA2) or bulk-in stall condition after
|
|
* reading CSW (TSTATE_BBB_SCLEAR).
|
|
* In the case of no data phase or successfull data phase,
|
|
* err == 0 and the following if block is passed.
|
|
*/
|
|
if (err) { /* should not occur */
|
|
/* try the transfer below, even if clear stall failed */
|
|
DPRINTF(UDMASS_BBB, ("%s: bulk-%s stall clear failed"
|
|
", %s\n", USBDEVNAME(sc->sc_dev),
|
|
(sc->transfer_dir == DIR_IN? "in":"out"),
|
|
usbd_errstr(err)));
|
|
umass_bbb_reset(sc, STATUS_WIRE_FAILED);
|
|
return;
|
|
}
|
|
|
|
/* Status transport phase, setup transfer */
|
|
if (sc->transfer_state == TSTATE_BBB_COMMAND ||
|
|
sc->transfer_state == TSTATE_BBB_DATA ||
|
|
sc->transfer_state == TSTATE_BBB_DCLEAR) {
|
|
/* After no data phase, successfull data phase and
|
|
* after clearing bulk-in/-out stall condition
|
|
*/
|
|
sc->transfer_state = TSTATE_BBB_STATUS1;
|
|
next_xfer = sc->transfer_xfer[XFER_BBB_CSW1];
|
|
} else {
|
|
/* After first attempt of fetching CSW */
|
|
sc->transfer_state = TSTATE_BBB_STATUS2;
|
|
next_xfer = sc->transfer_xfer[XFER_BBB_CSW2];
|
|
}
|
|
|
|
/* Read the Command Status Wrapper via bulk-in endpoint. */
|
|
if (umass_setup_transfer(sc, sc->bulkin_pipe,
|
|
&sc->csw, UMASS_BBB_CSW_SIZE, 0,
|
|
next_xfer)) {
|
|
umass_bbb_reset(sc, STATUS_WIRE_FAILED);
|
|
return;
|
|
}
|
|
|
|
return;
|
|
case TSTATE_BBB_STATUS1: /* first attempt */
|
|
case TSTATE_BBB_STATUS2: /* second attempt */
|
|
/* Status transfer, error handling */
|
|
if (err) {
|
|
DPRINTF(UDMASS_BBB, ("%s: Failed to read CSW, %s%s\n",
|
|
USBDEVNAME(sc->sc_dev), usbd_errstr(err),
|
|
(sc->transfer_state == TSTATE_BBB_STATUS1?
|
|
", retrying":"")));
|
|
|
|
/* If this was the first attempt at fetching the CSW
|
|
* retry it, otherwise fail.
|
|
*/
|
|
if (sc->transfer_state == TSTATE_BBB_STATUS1) {
|
|
umass_clear_endpoint_stall(sc,
|
|
sc->bulkin, sc->bulkin_pipe,
|
|
TSTATE_BBB_SCLEAR,
|
|
sc->transfer_xfer[XFER_BBB_SCLEAR]);
|
|
return;
|
|
} else {
|
|
umass_bbb_reset(sc, STATUS_WIRE_FAILED);
|
|
return;
|
|
}
|
|
}
|
|
|
|
DIF(UDMASS_BBB, umass_bbb_dump_csw(sc, &sc->csw));
|
|
|
|
/* Check CSW and handle any error */
|
|
if (UGETDW(sc->csw.dCSWSignature) != CSWSIGNATURE) {
|
|
/* Invalid CSW: Wrong signature or wrong tag might
|
|
* indicate that the device is confused -> reset it.
|
|
*/
|
|
printf("%s: Invalid CSW: sig 0x%08x should be 0x%08x\n",
|
|
USBDEVNAME(sc->sc_dev),
|
|
UGETDW(sc->csw.dCSWSignature),
|
|
CSWSIGNATURE);
|
|
|
|
umass_bbb_reset(sc, STATUS_WIRE_FAILED);
|
|
return;
|
|
} else if (UGETDW(sc->csw.dCSWTag)
|
|
!= UGETDW(sc->cbw.dCBWTag)) {
|
|
printf("%s: Invalid CSW: tag %d should be %d\n",
|
|
USBDEVNAME(sc->sc_dev),
|
|
UGETDW(sc->csw.dCSWTag),
|
|
UGETDW(sc->cbw.dCBWTag));
|
|
|
|
umass_bbb_reset(sc, STATUS_WIRE_FAILED);
|
|
return;
|
|
|
|
/* CSW is valid here */
|
|
} else if (sc->csw.bCSWStatus > CSWSTATUS_PHASE) {
|
|
printf("%s: Invalid CSW: status %d > %d\n",
|
|
USBDEVNAME(sc->sc_dev),
|
|
sc->csw.bCSWStatus,
|
|
CSWSTATUS_PHASE);
|
|
|
|
umass_bbb_reset(sc, STATUS_WIRE_FAILED);
|
|
return;
|
|
} else if (sc->csw.bCSWStatus == CSWSTATUS_PHASE) {
|
|
printf("%s: Phase Error, residue = %d\n",
|
|
USBDEVNAME(sc->sc_dev),
|
|
UGETDW(sc->csw.dCSWDataResidue));
|
|
|
|
umass_bbb_reset(sc, STATUS_WIRE_FAILED);
|
|
return;
|
|
|
|
} else if (sc->transfer_actlen > sc->transfer_datalen) {
|
|
/* Buffer overrun! Don't let this go by unnoticed */
|
|
panic("%s: transferred %d bytes instead of %d bytes\n",
|
|
USBDEVNAME(sc->sc_dev),
|
|
sc->transfer_actlen, sc->transfer_datalen);
|
|
} else if (sc->transfer_datalen - sc->transfer_actlen
|
|
!= UGETDW(sc->csw.dCSWDataResidue)) {
|
|
DPRINTF(UDMASS_BBB, ("%s: actlen=%d != residue=%d\n",
|
|
USBDEVNAME(sc->sc_dev),
|
|
sc->transfer_datalen - sc->transfer_actlen,
|
|
UGETDW(sc->csw.dCSWDataResidue)));
|
|
|
|
umass_bbb_reset(sc, STATUS_WIRE_FAILED);
|
|
return;
|
|
|
|
} else if (sc->csw.bCSWStatus == CSWSTATUS_FAILED) {
|
|
DPRINTF(UDMASS_BBB, ("%s: Command Failed, res = %d\n",
|
|
USBDEVNAME(sc->sc_dev),
|
|
UGETDW(sc->csw.dCSWDataResidue)));
|
|
|
|
/* SCSI command failed but transfer was succesful */
|
|
sc->transfer_state = TSTATE_IDLE;
|
|
sc->transfer_cb(sc, sc->transfer_priv,
|
|
UGETDW(sc->csw.dCSWDataResidue),
|
|
STATUS_CMD_FAILED);
|
|
|
|
return;
|
|
|
|
} else { /* success */
|
|
sc->transfer_state = TSTATE_IDLE;
|
|
sc->transfer_cb(sc, sc->transfer_priv,
|
|
UGETDW(sc->csw.dCSWDataResidue),
|
|
STATUS_CMD_OK);
|
|
|
|
return;
|
|
}
|
|
|
|
/***** Bulk Reset *****/
|
|
case TSTATE_BBB_RESET1:
|
|
if (err)
|
|
printf("%s: BBB reset failed, %s\n",
|
|
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
|
|
|
|
umass_clear_endpoint_stall(sc,
|
|
sc->bulkin, sc->bulkin_pipe, TSTATE_BBB_RESET2,
|
|
sc->transfer_xfer[XFER_BBB_RESET2]);
|
|
|
|
return;
|
|
case TSTATE_BBB_RESET2:
|
|
if (err) /* should not occur */
|
|
printf("%s: BBB bulk-in clear stall failed, %s\n",
|
|
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
|
|
/* no error recovery, otherwise we end up in a loop */
|
|
|
|
umass_clear_endpoint_stall(sc,
|
|
sc->bulkout, sc->bulkout_pipe, TSTATE_BBB_RESET3,
|
|
sc->transfer_xfer[XFER_BBB_RESET3]);
|
|
|
|
return;
|
|
case TSTATE_BBB_RESET3:
|
|
if (err) /* should not occur */
|
|
printf("%s: BBB bulk-out clear stall failed, %s\n",
|
|
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
|
|
/* no error recovery, otherwise we end up in a loop */
|
|
|
|
sc->transfer_state = TSTATE_IDLE;
|
|
if (sc->transfer_priv) {
|
|
sc->transfer_cb(sc, sc->transfer_priv,
|
|
sc->transfer_datalen,
|
|
sc->transfer_status);
|
|
}
|
|
|
|
return;
|
|
|
|
/***** Default *****/
|
|
default:
|
|
panic("%s: Unknown state %d\n",
|
|
USBDEVNAME(sc->sc_dev), sc->transfer_state);
|
|
}
|
|
}
|
|
|
|
Static int
|
|
umass_bbb_get_max_lun(struct umass_softc *sc)
|
|
{
|
|
usbd_device_handle udev;
|
|
usb_device_request_t req;
|
|
usbd_status err;
|
|
usb_interface_descriptor_t *id;
|
|
int maxlun = 0;
|
|
u_int8_t buf = 0;
|
|
|
|
usbd_interface2device_handle(sc->iface, &udev);
|
|
id = usbd_get_interface_descriptor(sc->iface);
|
|
|
|
/* The Get Max Lun command is a class-specific request. */
|
|
req.bmRequestType = UT_READ_CLASS_INTERFACE;
|
|
req.bRequest = UR_BBB_GET_MAX_LUN;
|
|
USETW(req.wValue, 0);
|
|
USETW(req.wIndex, id->bInterfaceNumber);
|
|
USETW(req.wLength, 1);
|
|
|
|
err = usbd_do_request(udev, &req, &buf);
|
|
switch (err) {
|
|
case USBD_NORMAL_COMPLETION:
|
|
DPRINTF(UDMASS_BBB, ("%s: Max Lun is %d\n",
|
|
USBDEVNAME(sc->sc_dev), maxlun));
|
|
maxlun = buf;
|
|
break;
|
|
case USBD_STALLED:
|
|
case USBD_SHORT_XFER:
|
|
default:
|
|
/* Device doesn't support Get Max Lun request. */
|
|
printf("%s: Get Max Lun not supported (%s)\n",
|
|
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
|
|
/* XXX Should we port_reset the device? */
|
|
break;
|
|
}
|
|
|
|
return(maxlun);
|
|
}
|
|
|
|
/*
|
|
* Command/Bulk/Interrupt (CBI) specific functions
|
|
*/
|
|
|
|
Static int
|
|
umass_cbi_adsc(struct umass_softc *sc, char *buffer, int buflen,
|
|
usbd_xfer_handle xfer)
|
|
{
|
|
usbd_device_handle udev;
|
|
|
|
KASSERT(sc->proto & (PROTO_CBI|PROTO_CBI_I),
|
|
("sc->proto == 0x%02x wrong for umass_cbi_adsc\n",sc->proto));
|
|
|
|
usbd_interface2device_handle(sc->iface, &udev);
|
|
|
|
sc->request.bmRequestType = UT_WRITE_CLASS_INTERFACE;
|
|
sc->request.bRequest = UR_CBI_ADSC;
|
|
USETW(sc->request.wValue, 0);
|
|
USETW(sc->request.wIndex, sc->ifaceno);
|
|
USETW(sc->request.wLength, buflen);
|
|
return umass_setup_ctrl_transfer(sc, udev, &sc->request, buffer,
|
|
buflen, 0, xfer);
|
|
}
|
|
|
|
|
|
Static void
|
|
umass_cbi_reset(struct umass_softc *sc, int status)
|
|
{
|
|
int i;
|
|
# define SEND_DIAGNOSTIC_CMDLEN 12
|
|
|
|
KASSERT(sc->proto & (PROTO_CBI|PROTO_CBI_I),
|
|
("sc->proto == 0x%02x wrong for umass_cbi_reset\n",sc->proto));
|
|
|
|
/*
|
|
* Command Block Reset Protocol
|
|
*
|
|
* First send a reset request to the device. Then clear
|
|
* any possibly stalled bulk endpoints.
|
|
|
|
* This is done in 3 steps, states:
|
|
* TSTATE_CBI_RESET1
|
|
* TSTATE_CBI_RESET2
|
|
* TSTATE_CBI_RESET3
|
|
*
|
|
* If the reset doesn't succeed, the device should be port reset.
|
|
*/
|
|
|
|
DPRINTF(UDMASS_CBI, ("%s: CBI Reset\n",
|
|
USBDEVNAME(sc->sc_dev)));
|
|
|
|
KASSERT(sizeof(sc->cbl) >= SEND_DIAGNOSTIC_CMDLEN,
|
|
("%s: CBL struct is too small (%d < %d)\n",
|
|
USBDEVNAME(sc->sc_dev),
|
|
sizeof(sc->cbl), SEND_DIAGNOSTIC_CMDLEN));
|
|
|
|
sc->transfer_state = TSTATE_CBI_RESET1;
|
|
sc->transfer_status = status;
|
|
|
|
/* The 0x1d code is the SEND DIAGNOSTIC command. To distingiush between
|
|
* the two the last 10 bytes of the cbl is filled with 0xff (section
|
|
* 2.2 of the CBI spec).
|
|
*/
|
|
sc->cbl[0] = 0x1d; /* Command Block Reset */
|
|
sc->cbl[1] = 0x04;
|
|
for (i = 2; i < SEND_DIAGNOSTIC_CMDLEN; i++)
|
|
sc->cbl[i] = 0xff;
|
|
|
|
umass_cbi_adsc(sc, sc->cbl, SEND_DIAGNOSTIC_CMDLEN,
|
|
sc->transfer_xfer[XFER_CBI_RESET1]);
|
|
/* XXX if the command fails we should reset the port on the bub */
|
|
}
|
|
|
|
Static void
|
|
umass_cbi_transfer(struct umass_softc *sc, int lun,
|
|
void *cmd, int cmdlen, void *data, int datalen, int dir,
|
|
transfer_cb_f cb, void *priv)
|
|
{
|
|
KASSERT(sc->proto & (PROTO_CBI|PROTO_CBI_I),
|
|
("sc->proto == 0x%02x wrong for umass_cbi_transfer\n",
|
|
sc->proto));
|
|
|
|
/*
|
|
* Do a CBI transfer with cmdlen bytes from cmd, possibly
|
|
* a data phase of datalen bytes from/to the device and finally a
|
|
* csw read phase.
|
|
* If the data direction was inbound a maximum of datalen bytes
|
|
* is stored in the buffer pointed to by data.
|
|
*
|
|
* umass_cbi_transfer initialises the transfer and lets the state
|
|
* machine in umass_cbi_state handle the completion. It uses the
|
|
* following states:
|
|
* TSTATE_CBI_COMMAND
|
|
* -> XXX fill in
|
|
*
|
|
* An error in any of those states will invoke
|
|
* umass_cbi_reset.
|
|
*/
|
|
|
|
/* check the given arguments */
|
|
KASSERT(datalen == 0 || data != NULL,
|
|
("%s: datalen > 0, but no buffer",USBDEVNAME(sc->sc_dev)));
|
|
KASSERT(datalen == 0 || dir != DIR_NONE,
|
|
("%s: direction is NONE while datalen is not zero\n",
|
|
USBDEVNAME(sc->sc_dev)));
|
|
|
|
/* store the details for the data transfer phase */
|
|
sc->transfer_dir = dir;
|
|
sc->transfer_data = data;
|
|
sc->transfer_datalen = datalen;
|
|
sc->transfer_actlen = 0;
|
|
sc->transfer_cb = cb;
|
|
sc->transfer_priv = priv;
|
|
sc->transfer_status = STATUS_CMD_OK;
|
|
|
|
/* move from idle to the command state */
|
|
sc->transfer_state = TSTATE_CBI_COMMAND;
|
|
|
|
/* Send the Command Block from host to device via control endpoint. */
|
|
if (umass_cbi_adsc(sc, cmd, cmdlen, sc->transfer_xfer[XFER_CBI_CB]))
|
|
umass_cbi_reset(sc, STATUS_WIRE_FAILED);
|
|
}
|
|
|
|
Static void
|
|
umass_cbi_state(usbd_xfer_handle xfer, usbd_private_handle priv,
|
|
usbd_status err)
|
|
{
|
|
struct umass_softc *sc = (struct umass_softc *) priv;
|
|
|
|
KASSERT(sc->proto & (PROTO_CBI|PROTO_CBI_I),
|
|
("sc->proto == 0x%02x wrong for umass_cbi_state\n", sc->proto));
|
|
|
|
/*
|
|
* State handling for CBI transfers.
|
|
*/
|
|
|
|
DPRINTF(UDMASS_CBI, ("%s: Handling CBI state %d (%s), xfer=%p, %s\n",
|
|
USBDEVNAME(sc->sc_dev), sc->transfer_state,
|
|
states[sc->transfer_state], xfer, usbd_errstr(err)));
|
|
|
|
switch (sc->transfer_state) {
|
|
|
|
/***** CBI Transfer *****/
|
|
case TSTATE_CBI_COMMAND:
|
|
if (err == USBD_STALLED) {
|
|
DPRINTF(UDMASS_CBI, ("%s: Command Transport failed\n",
|
|
USBDEVNAME(sc->sc_dev)));
|
|
/* Status transport by control pipe (section 2.3.2.1).
|
|
* The command contained in the command block failed.
|
|
*
|
|
* The control pipe has already been unstalled by the
|
|
* USB stack.
|
|
* Section 2.4.3.1.1 states that the bulk in endpoints
|
|
* should not stalled at this point.
|
|
*/
|
|
|
|
sc->transfer_state = TSTATE_IDLE;
|
|
sc->transfer_cb(sc, sc->transfer_priv,
|
|
sc->transfer_datalen,
|
|
STATUS_CMD_FAILED);
|
|
|
|
return;
|
|
} else if (err) {
|
|
DPRINTF(UDMASS_CBI, ("%s: failed to send ADSC\n",
|
|
USBDEVNAME(sc->sc_dev)));
|
|
umass_cbi_reset(sc, STATUS_WIRE_FAILED);
|
|
|
|
return;
|
|
}
|
|
|
|
sc->transfer_state = TSTATE_CBI_DATA;
|
|
if (sc->transfer_dir == DIR_IN) {
|
|
if (umass_setup_transfer(sc, sc->bulkin_pipe,
|
|
sc->transfer_data, sc->transfer_datalen,
|
|
USBD_SHORT_XFER_OK,
|
|
sc->transfer_xfer[XFER_CBI_DATA]))
|
|
umass_cbi_reset(sc, STATUS_WIRE_FAILED);
|
|
|
|
} else if (sc->transfer_dir == DIR_OUT) {
|
|
if (umass_setup_transfer(sc, sc->bulkout_pipe,
|
|
sc->transfer_data, sc->transfer_datalen,
|
|
0, /* fixed length transfer */
|
|
sc->transfer_xfer[XFER_CBI_DATA]))
|
|
umass_cbi_reset(sc, STATUS_WIRE_FAILED);
|
|
|
|
} else if (sc->proto & PROTO_CBI_I) {
|
|
DPRINTF(UDMASS_CBI, ("%s: no data phase\n",
|
|
USBDEVNAME(sc->sc_dev)));
|
|
sc->transfer_state = TSTATE_CBI_STATUS;
|
|
if (umass_setup_transfer(sc, sc->intrin_pipe,
|
|
&sc->sbl, sizeof(sc->sbl),
|
|
0, /* fixed length transfer */
|
|
sc->transfer_xfer[XFER_CBI_STATUS])){
|
|
umass_cbi_reset(sc, STATUS_WIRE_FAILED);
|
|
}
|
|
} else {
|
|
DPRINTF(UDMASS_CBI, ("%s: no data phase\n",
|
|
USBDEVNAME(sc->sc_dev)));
|
|
/* No command completion interrupt. Request
|
|
* sense data.
|
|
*/
|
|
sc->transfer_state = TSTATE_IDLE;
|
|
sc->transfer_cb(sc, sc->transfer_priv,
|
|
0, STATUS_CMD_UNKNOWN);
|
|
}
|
|
|
|
return;
|
|
|
|
case TSTATE_CBI_DATA:
|
|
/* retrieve the length of the transfer that was done */
|
|
usbd_get_xfer_status(xfer,NULL,NULL,&sc->transfer_actlen,NULL);
|
|
|
|
if (err) {
|
|
DPRINTF(UDMASS_CBI, ("%s: Data-%s %db failed, "
|
|
"%s\n", USBDEVNAME(sc->sc_dev),
|
|
(sc->transfer_dir == DIR_IN?"in":"out"),
|
|
sc->transfer_datalen,usbd_errstr(err)));
|
|
|
|
if (err == USBD_STALLED) {
|
|
umass_clear_endpoint_stall(sc,
|
|
sc->bulkin, sc->bulkin_pipe,
|
|
TSTATE_CBI_DCLEAR,
|
|
sc->transfer_xfer[XFER_CBI_DCLEAR]);
|
|
} else {
|
|
umass_cbi_reset(sc, STATUS_WIRE_FAILED);
|
|
}
|
|
return;
|
|
}
|
|
|
|
DIF(UDMASS_CBI, if (sc->transfer_dir == DIR_IN)
|
|
umass_dump_buffer(sc, sc->transfer_data,
|
|
sc->transfer_actlen, 48));
|
|
|
|
if (sc->proto & PROTO_CBI_I) {
|
|
sc->transfer_state = TSTATE_CBI_STATUS;
|
|
memset(&sc->sbl, 0, sizeof(sc->sbl));
|
|
if (umass_setup_transfer(sc, sc->intrin_pipe,
|
|
&sc->sbl, sizeof(sc->sbl),
|
|
0, /* fixed length transfer */
|
|
sc->transfer_xfer[XFER_CBI_STATUS])){
|
|
umass_cbi_reset(sc, STATUS_WIRE_FAILED);
|
|
}
|
|
} else {
|
|
/* No command completion interrupt. Request
|
|
* sense to get status of command.
|
|
*/
|
|
sc->transfer_state = TSTATE_IDLE;
|
|
sc->transfer_cb(sc, sc->transfer_priv,
|
|
sc->transfer_datalen - sc->transfer_actlen,
|
|
STATUS_CMD_UNKNOWN);
|
|
}
|
|
return;
|
|
|
|
case TSTATE_CBI_STATUS:
|
|
if (err) {
|
|
DPRINTF(UDMASS_CBI, ("%s: Status Transport failed\n",
|
|
USBDEVNAME(sc->sc_dev)));
|
|
/* Status transport by interrupt pipe (section 2.3.2.2).
|
|
*/
|
|
|
|
if (err == USBD_STALLED) {
|
|
umass_clear_endpoint_stall(sc,
|
|
sc->intrin, sc->intrin_pipe,
|
|
TSTATE_CBI_SCLEAR,
|
|
sc->transfer_xfer[XFER_CBI_SCLEAR]);
|
|
} else {
|
|
umass_cbi_reset(sc, STATUS_WIRE_FAILED);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/* Dissect the information in the buffer */
|
|
|
|
if (sc->proto & PROTO_UFI) {
|
|
int status;
|
|
|
|
/* Section 3.4.3.1.3 specifies that the UFI command
|
|
* protocol returns an ASC and ASCQ in the interrupt
|
|
* data block.
|
|
*/
|
|
|
|
DPRINTF(UDMASS_CBI, ("%s: UFI CCI, ASC = 0x%02x, "
|
|
"ASCQ = 0x%02x\n",
|
|
USBDEVNAME(sc->sc_dev),
|
|
sc->sbl.ufi.asc, sc->sbl.ufi.ascq));
|
|
|
|
if (sc->sbl.ufi.asc == 0 && sc->sbl.ufi.ascq == 0)
|
|
status = STATUS_CMD_OK;
|
|
else
|
|
status = STATUS_CMD_FAILED;
|
|
|
|
/* No sense, command successfull */
|
|
} else {
|
|
/* Command Interrupt Data Block */
|
|
DPRINTF(UDMASS_CBI, ("%s: type=0x%02x, value=0x%02x\n",
|
|
USBDEVNAME(sc->sc_dev),
|
|
sc->sbl.common.type, sc->sbl.common.value));
|
|
|
|
if (sc->sbl.common.type == IDB_TYPE_CCI) {
|
|
int err;
|
|
|
|
if ((sc->sbl.common.value&IDB_VALUE_STATUS_MASK)
|
|
== IDB_VALUE_PASS) {
|
|
err = STATUS_CMD_OK;
|
|
} else if ((sc->sbl.common.value & IDB_VALUE_STATUS_MASK)
|
|
== IDB_VALUE_FAIL ||
|
|
(sc->sbl.common.value & IDB_VALUE_STATUS_MASK)
|
|
== IDB_VALUE_PERSISTENT) {
|
|
err = STATUS_CMD_FAILED;
|
|
} else {
|
|
err = STATUS_WIRE_FAILED;
|
|
}
|
|
|
|
sc->transfer_state = TSTATE_IDLE;
|
|
sc->transfer_cb(sc, sc->transfer_priv,
|
|
sc->transfer_datalen,
|
|
err);
|
|
}
|
|
}
|
|
return;
|
|
|
|
case TSTATE_CBI_DCLEAR:
|
|
if (err) { /* should not occur */
|
|
printf("%s: CBI bulk-in/out stall clear failed, %s\n",
|
|
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
|
|
umass_cbi_reset(sc, STATUS_WIRE_FAILED);
|
|
}
|
|
|
|
sc->transfer_state = TSTATE_IDLE;
|
|
sc->transfer_cb(sc, sc->transfer_priv,
|
|
sc->transfer_datalen,
|
|
STATUS_CMD_FAILED);
|
|
return;
|
|
|
|
case TSTATE_CBI_SCLEAR:
|
|
if (err) /* should not occur */
|
|
printf("%s: CBI intr-in stall clear failed, %s\n",
|
|
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
|
|
|
|
/* Something really bad is going on. Reset the device */
|
|
umass_cbi_reset(sc, STATUS_CMD_FAILED);
|
|
return;
|
|
|
|
/***** CBI Reset *****/
|
|
case TSTATE_CBI_RESET1:
|
|
if (err)
|
|
printf("%s: CBI reset failed, %s\n",
|
|
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
|
|
|
|
umass_clear_endpoint_stall(sc,
|
|
sc->bulkin, sc->bulkin_pipe, TSTATE_CBI_RESET2,
|
|
sc->transfer_xfer[XFER_CBI_RESET2]);
|
|
|
|
return;
|
|
case TSTATE_CBI_RESET2:
|
|
if (err) /* should not occur */
|
|
printf("%s: CBI bulk-in stall clear failed, %s\n",
|
|
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
|
|
/* no error recovery, otherwise we end up in a loop */
|
|
|
|
umass_clear_endpoint_stall(sc,
|
|
sc->bulkout, sc->bulkout_pipe, TSTATE_CBI_RESET3,
|
|
sc->transfer_xfer[XFER_CBI_RESET3]);
|
|
|
|
return;
|
|
case TSTATE_CBI_RESET3:
|
|
if (err) /* should not occur */
|
|
printf("%s: CBI bulk-out stall clear failed, %s\n",
|
|
USBDEVNAME(sc->sc_dev), usbd_errstr(err));
|
|
/* no error recovery, otherwise we end up in a loop */
|
|
|
|
sc->transfer_state = TSTATE_IDLE;
|
|
if (sc->transfer_priv) {
|
|
sc->transfer_cb(sc, sc->transfer_priv,
|
|
sc->transfer_datalen,
|
|
sc->transfer_status);
|
|
}
|
|
|
|
return;
|
|
|
|
|
|
/***** Default *****/
|
|
default:
|
|
panic("%s: Unknown state %d\n",
|
|
USBDEVNAME(sc->sc_dev), sc->transfer_state);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
* CAM specific functions (used by SCSI, UFI, 8070i (ATAPI))
|
|
*/
|
|
|
|
Static int
|
|
umass_cam_attach_sim()
|
|
{
|
|
struct cam_devq *devq; /* Per device Queue */
|
|
|
|
/* A HBA is attached to the CAM layer.
|
|
*
|
|
* The CAM layer will then after a while start probing for
|
|
* devices on the bus. The number of SIMs is limitted to one.
|
|
*/
|
|
|
|
devq = cam_simq_alloc(1 /*maximum openings*/);
|
|
if (devq == NULL)
|
|
return(ENOMEM);
|
|
|
|
umass_sim = cam_sim_alloc(umass_cam_action, umass_cam_poll, DEVNAME_SIM,
|
|
NULL /*priv*/, UMASS_SCSIID_HOST/*unit number*/,
|
|
1 /*maximum device openings*/,
|
|
0 /*maximum tagged device openings*/,
|
|
devq);
|
|
if (umass_sim == NULL) {
|
|
cam_simq_free(devq);
|
|
return(ENOMEM);
|
|
}
|
|
|
|
if(xpt_bus_register(umass_sim, UMASS_SCSI_BUS) != CAM_SUCCESS)
|
|
return(ENOMEM);
|
|
|
|
return(0);
|
|
}
|
|
|
|
Static void
|
|
umass_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
|
|
{
|
|
#ifdef UMASS_DEBUG
|
|
if (ccb->ccb_h.status != CAM_REQ_CMP) {
|
|
DPRINTF(UDMASS_SCSI, ("scbus%d: Rescan failed, 0x%04x\n",
|
|
cam_sim_path(umass_sim),
|
|
ccb->ccb_h.status));
|
|
} else {
|
|
DPRINTF(UDMASS_SCSI, ("scbus%d: Rescan succeeded\n",
|
|
cam_sim_path(umass_sim)));
|
|
}
|
|
#endif
|
|
|
|
xpt_free_path(ccb->ccb_h.path);
|
|
free(ccb, M_USBDEV);
|
|
}
|
|
|
|
Static void
|
|
umass_cam_rescan(struct umass_softc *sc)
|
|
{
|
|
struct cam_path *path;
|
|
union ccb *ccb = malloc(sizeof(union ccb), M_USBDEV, M_WAITOK);
|
|
|
|
memset(ccb, 0, sizeof(union ccb));
|
|
|
|
DPRINTF(UDMASS_SCSI, ("scbus%d: scanning for %s:%d:%d:%d\n",
|
|
cam_sim_path(umass_sim),
|
|
USBDEVNAME(sc->sc_dev), cam_sim_path(umass_sim),
|
|
USBDEVUNIT(sc->sc_dev), CAM_LUN_WILDCARD));
|
|
|
|
if (xpt_create_path(&path, xpt_periph, cam_sim_path(umass_sim),
|
|
UMASS_SCSIID_HOST, 0)
|
|
!= CAM_REQ_CMP)
|
|
return;
|
|
|
|
xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/);
|
|
ccb->ccb_h.func_code = XPT_SCAN_BUS;
|
|
ccb->ccb_h.cbfcnp = umass_cam_rescan_callback;
|
|
ccb->crcn.flags = CAM_FLAG_NONE;
|
|
xpt_action(ccb);
|
|
|
|
/* The scan is in progress now. */
|
|
}
|
|
|
|
Static int
|
|
umass_cam_attach(struct umass_softc *sc)
|
|
{
|
|
/* SIM already attached at module load. The device is a target on the
|
|
* one SIM we registered: target device_get_unit(self).
|
|
*/
|
|
|
|
/* The artificial limit UMASS_SCSIID_MAX is there because CAM expects
|
|
* a limit to the number of targets that are present on a SIM.
|
|
*/
|
|
if (device_get_unit(sc->sc_dev) >= UMASS_SCSIID_MAX) {
|
|
printf("scbus%d: Increase UMASS_SCSIID_MAX (currently %d) in %s"
|
|
" and try again.\n",
|
|
cam_sim_path(umass_sim), UMASS_SCSIID_MAX, __FILE__);
|
|
return(1);
|
|
}
|
|
|
|
#ifndef UMASS_DEBUG
|
|
if (bootverbose)
|
|
#endif
|
|
printf("%s:%d:%d:%d: Attached to scbus%d as device %d\n",
|
|
USBDEVNAME(sc->sc_dev), cam_sim_path(umass_sim),
|
|
USBDEVUNIT(sc->sc_dev), CAM_LUN_WILDCARD,
|
|
cam_sim_path(umass_sim), USBDEVUNIT(sc->sc_dev));
|
|
|
|
if (!cold) {
|
|
/* Notify CAM of the new device. Any failure is benign, as the
|
|
* user can still do it by hand (camcontrol rescan <busno>).
|
|
* Only do this if we are not booting, because CAM does a scan
|
|
* after booting has completed, when interrupts have been
|
|
* enabled.
|
|
*/
|
|
umass_cam_rescan(sc);
|
|
}
|
|
|
|
return(0); /* always succesfull */
|
|
}
|
|
|
|
/* umass_cam_detach
|
|
* detach from the CAM layer
|
|
*/
|
|
|
|
Static int
|
|
umass_cam_detach_sim()
|
|
{
|
|
if (umass_sim)
|
|
return(EBUSY); /* XXX CAM can't handle disappearing SIMs yet */
|
|
|
|
if (umass_sim) {
|
|
if (xpt_bus_deregister(cam_sim_path(umass_sim)))
|
|
cam_sim_free(umass_sim, /*free_devq*/TRUE);
|
|
else
|
|
return(EBUSY);
|
|
|
|
umass_sim = NULL;
|
|
}
|
|
|
|
return(0);
|
|
}
|
|
|
|
Static int
|
|
umass_cam_detach(struct umass_softc *sc)
|
|
{
|
|
struct cam_path *path;
|
|
|
|
/* detach of sim not done until module unload */
|
|
DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d: losing CAM device entry\n",
|
|
USBDEVNAME(sc->sc_dev), cam_sim_path(umass_sim),
|
|
USBDEVUNIT(sc->sc_dev), CAM_LUN_WILDCARD));
|
|
|
|
if (xpt_create_path(&path, NULL, cam_sim_path(umass_sim),
|
|
USBDEVUNIT(sc->sc_dev), CAM_LUN_WILDCARD)
|
|
!= CAM_REQ_CMP)
|
|
return(ENOMEM);
|
|
xpt_async(AC_LOST_DEVICE, path, NULL);
|
|
xpt_free_path(path);
|
|
|
|
return(0);
|
|
}
|
|
|
|
|
|
|
|
/* umass_cam_action
|
|
* CAM requests for action come through here
|
|
*/
|
|
|
|
Static void
|
|
umass_cam_action(struct cam_sim *sim, union ccb *ccb)
|
|
{
|
|
struct umass_softc *sc = devclass_get_softc(umass_devclass,
|
|
ccb->ccb_h.target_id);
|
|
|
|
/* The softc is still there, but marked as going away. umass_cam_detach
|
|
* has not yet notified CAM of the lost device however.
|
|
*/
|
|
if (sc && (sc->flags & UMASS_FLAGS_GONE)) {
|
|
DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:func_code 0x%04x: "
|
|
"Invalid target (gone)\n",
|
|
USBDEVNAME(sc->sc_dev), cam_sim_path(umass_sim),
|
|
ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
|
|
ccb->ccb_h.func_code));
|
|
ccb->ccb_h.status = CAM_TID_INVALID;
|
|
xpt_done(ccb);
|
|
return;
|
|
}
|
|
|
|
/* Verify, depending on the operation to perform, that we either got a
|
|
* valid sc, because an existing target was referenced, or otherwise
|
|
* the SIM is addressed.
|
|
*
|
|
* This avoids bombing out at a printf and does give the CAM layer some
|
|
* sensible feedback on errors.
|
|
*/
|
|
switch (ccb->ccb_h.func_code) {
|
|
case XPT_SCSI_IO:
|
|
case XPT_RESET_DEV:
|
|
case XPT_GET_TRAN_SETTINGS:
|
|
case XPT_SET_TRAN_SETTINGS:
|
|
case XPT_CALC_GEOMETRY:
|
|
/* the opcodes requiring a target. These should never occur. */
|
|
if (sc == NULL) {
|
|
printf("%s:%d:%d:%d:func_code 0x%04x: "
|
|
"Invalid target (target needed)\n",
|
|
DEVNAME_SIM, cam_sim_path(umass_sim),
|
|
ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
|
|
ccb->ccb_h.func_code);
|
|
|
|
ccb->ccb_h.status = CAM_TID_INVALID;
|
|
xpt_done(ccb);
|
|
return;
|
|
}
|
|
break;
|
|
case XPT_PATH_INQ:
|
|
case XPT_NOOP:
|
|
/* The opcodes sometimes aimed at a target (sc is valid),
|
|
* sometimes aimed at the SIM (sc is invalid and target is
|
|
* CAM_TARGET_WILDCARD)
|
|
*/
|
|
if (sc == NULL && ccb->ccb_h.target_id != CAM_TARGET_WILDCARD) {
|
|
DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:func_code 0x%04x: "
|
|
"Invalid target (no wildcard)\n",
|
|
DEVNAME_SIM, cam_sim_path(umass_sim),
|
|
ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
|
|
ccb->ccb_h.func_code));
|
|
|
|
ccb->ccb_h.status = CAM_TID_INVALID;
|
|
xpt_done(ccb);
|
|
return;
|
|
}
|
|
break;
|
|
default:
|
|
/* XXX Hm, we should check the input parameters */
|
|
}
|
|
|
|
/* Perform the requested action */
|
|
switch (ccb->ccb_h.func_code) {
|
|
case XPT_SCSI_IO:
|
|
{
|
|
struct ccb_scsiio *csio = &ccb->csio; /* deref union */
|
|
int dir;
|
|
unsigned char *cmd;
|
|
int cmdlen;
|
|
unsigned char *rcmd;
|
|
int rcmdlen;
|
|
|
|
DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:XPT_SCSI_IO: "
|
|
"cmd: 0x%02x, flags: 0x%02x, "
|
|
"%db cmd/%db data/%db sense\n",
|
|
USBDEVNAME(sc->sc_dev), cam_sim_path(umass_sim),
|
|
ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
|
|
csio->cdb_io.cdb_bytes[0],
|
|
ccb->ccb_h.flags & CAM_DIR_MASK,
|
|
csio->cdb_len, csio->dxfer_len,
|
|
csio->sense_len));
|
|
|
|
/* clear the end of the buffer to make sure we don't send out
|
|
* garbage.
|
|
*/
|
|
DIF(UDMASS_SCSI, if ((ccb->ccb_h.flags & CAM_DIR_MASK)
|
|
== CAM_DIR_OUT)
|
|
umass_dump_buffer(sc, csio->data_ptr,
|
|
csio->dxfer_len, 48));
|
|
|
|
if (sc->transfer_state != TSTATE_IDLE) {
|
|
DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:XPT_SCSI_IO: "
|
|
"I/O requested while busy (state %d, %s)\n",
|
|
USBDEVNAME(sc->sc_dev), cam_sim_path(umass_sim),
|
|
ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
|
|
sc->transfer_state,states[sc->transfer_state]));
|
|
ccb->ccb_h.status = CAM_SCSI_BUSY;
|
|
xpt_done(ccb);
|
|
return;
|
|
}
|
|
|
|
switch(ccb->ccb_h.flags&CAM_DIR_MASK) {
|
|
case CAM_DIR_IN:
|
|
dir = DIR_IN;
|
|
break;
|
|
case CAM_DIR_OUT:
|
|
dir = DIR_OUT;
|
|
break;
|
|
default:
|
|
dir = DIR_NONE;
|
|
}
|
|
|
|
ccb->ccb_h.status = CAM_REQ_INPROG | CAM_SIM_QUEUED;
|
|
|
|
|
|
if (csio->ccb_h.flags & CAM_CDB_POINTER) {
|
|
cmd = (unsigned char *) csio->cdb_io.cdb_ptr;
|
|
} else {
|
|
cmd = (unsigned char *) &csio->cdb_io.cdb_bytes;
|
|
}
|
|
cmdlen = csio->cdb_len;
|
|
rcmd = (unsigned char *) &sc->cam_scsi_command;
|
|
rcmdlen = sizeof(sc->cam_scsi_command);
|
|
|
|
/* sc->transform will convert the command to the command
|
|
* (format) needed by the specific command set and return
|
|
* the converted command in a buffer pointed to be rcmd.
|
|
* We pass in a buffer, but if the command does not
|
|
* have to be transformed it returns a ptr to the original
|
|
* buffer (see umass_scsi_transform).
|
|
*/
|
|
|
|
if (sc->transform(sc, cmd, cmdlen, &rcmd, &rcmdlen)) {
|
|
sc->transfer(sc, ccb->ccb_h.target_lun, rcmd, rcmdlen,
|
|
csio->data_ptr,
|
|
csio->dxfer_len, dir,
|
|
umass_cam_cb, (void *) ccb);
|
|
} else {
|
|
ccb->ccb_h.status = CAM_REQ_INVALID;
|
|
xpt_done(ccb);
|
|
}
|
|
|
|
break;
|
|
}
|
|
case XPT_PATH_INQ:
|
|
{
|
|
struct ccb_pathinq *cpi = &ccb->cpi;
|
|
|
|
DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:XPT_PATH_INQ:.\n",
|
|
(sc == NULL? DEVNAME_SIM:USBDEVNAME(sc->sc_dev)),
|
|
cam_sim_path(umass_sim),
|
|
ccb->ccb_h.target_id, ccb->ccb_h.target_lun));
|
|
|
|
/* host specific information */
|
|
cpi->version_num = 1;
|
|
cpi->hba_inquiry = 0;
|
|
cpi->target_sprt = 0;
|
|
cpi->hba_misc = 0;
|
|
cpi->hba_eng_cnt = 0;
|
|
cpi->max_target = UMASS_SCSIID_MAX; /* one target */
|
|
if (sc == NULL)
|
|
cpi->max_lun = 0;
|
|
else
|
|
cpi->max_lun = sc->maxlun;
|
|
cpi->initiator_id = UMASS_SCSIID_HOST;
|
|
strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
|
|
strncpy(cpi->hba_vid, "USB SCSI", HBA_IDLEN);
|
|
strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
|
|
cpi->unit_number = cam_sim_unit(sim);
|
|
cpi->bus_id = UMASS_SCSI_BUS;
|
|
if (sc)
|
|
cpi->base_transfer_speed = sc->transfer_speed;
|
|
|
|
cpi->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
case XPT_RESET_DEV:
|
|
{
|
|
DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:XPT_RESET_DEV:.\n",
|
|
USBDEVNAME(sc->sc_dev), cam_sim_path(umass_sim),
|
|
ccb->ccb_h.target_id, ccb->ccb_h.target_lun));
|
|
|
|
ccb->ccb_h.status = CAM_REQ_INPROG;
|
|
umass_reset(sc, umass_cam_cb, (void *) ccb);
|
|
break;
|
|
}
|
|
case XPT_GET_TRAN_SETTINGS:
|
|
{
|
|
struct ccb_trans_settings *cts = &ccb->cts;
|
|
|
|
DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:XPT_GET_TRAN_SETTINGS:.\n",
|
|
USBDEVNAME(sc->sc_dev), cam_sim_path(umass_sim),
|
|
ccb->ccb_h.target_id, ccb->ccb_h.target_lun));
|
|
|
|
cts->valid = 0;
|
|
cts->flags = 0; /* no disconnection, tagging */
|
|
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
case XPT_SET_TRAN_SETTINGS:
|
|
{
|
|
DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:XPT_SET_TRAN_SETTINGS:.\n",
|
|
USBDEVNAME(sc->sc_dev), cam_sim_path(umass_sim),
|
|
ccb->ccb_h.target_id, ccb->ccb_h.target_lun));
|
|
|
|
ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
case XPT_CALC_GEOMETRY:
|
|
{
|
|
struct ccb_calc_geometry *ccg = &ccb->ccg;
|
|
|
|
DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:XPT_CALC_GEOMETRY: "
|
|
"Volume size = %d\n",
|
|
USBDEVNAME(sc->sc_dev), cam_sim_path(umass_sim),
|
|
ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
|
|
ccg->volume_size));
|
|
|
|
/* XXX We should probably ask the drive for the details
|
|
* instead of cluching them up ourselves
|
|
*/
|
|
if (sc->drive == ZIP_100) {
|
|
ccg->heads = 64;
|
|
ccg->secs_per_track = 32;
|
|
ccg->cylinders = ccg->volume_size / ccg->heads
|
|
/ ccg->secs_per_track;
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
break;
|
|
} else if (sc->proto & PROTO_UFI) {
|
|
ccg->heads = 2;
|
|
if (ccg->volume_size == 2880)
|
|
ccg->secs_per_track = 18;
|
|
else
|
|
ccg->secs_per_track = 9;
|
|
ccg->cylinders = 80;
|
|
break;
|
|
} else {
|
|
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
|
|
}
|
|
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
case XPT_NOOP:
|
|
{
|
|
DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:XPT_NOOP:.\n",
|
|
(sc == NULL? DEVNAME_SIM:USBDEVNAME(sc->sc_dev)),
|
|
cam_sim_path(umass_sim),
|
|
ccb->ccb_h.target_id, ccb->ccb_h.target_lun));
|
|
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
default:
|
|
DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:func_code 0x%04x: "
|
|
"Not implemented\n",
|
|
(sc == NULL? DEVNAME_SIM:USBDEVNAME(sc->sc_dev)),
|
|
cam_sim_path(umass_sim),
|
|
ccb->ccb_h.target_id, ccb->ccb_h.target_lun,
|
|
ccb->ccb_h.func_code));
|
|
|
|
ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* umass_cam_poll
|
|
* all requests are handled through umass_cam_action, requests
|
|
* are never pending. So, nothing to do here.
|
|
*/
|
|
Static void
|
|
umass_cam_poll(struct cam_sim *sim)
|
|
{
|
|
#ifdef UMASS_DEBUG
|
|
struct umass_softc *sc = (struct umass_softc *) sim->softc;
|
|
|
|
DPRINTF(UDMASS_SCSI, ("%s: CAM poll\n",
|
|
USBDEVNAME(sc->sc_dev)));
|
|
#endif
|
|
|
|
/* nop */
|
|
}
|
|
|
|
|
|
/* umass_cam_cb
|
|
* finalise a completed CAM command
|
|
*/
|
|
|
|
Static void
|
|
umass_cam_cb(struct umass_softc *sc, void *priv, int residue, int status)
|
|
{
|
|
union ccb *ccb = (union ccb *) priv;
|
|
struct ccb_scsiio *csio = &ccb->csio; /* deref union */
|
|
|
|
csio->resid = residue;
|
|
|
|
switch (status) {
|
|
case STATUS_CMD_OK:
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(ccb);
|
|
break;
|
|
|
|
case STATUS_CMD_UNKNOWN:
|
|
case STATUS_CMD_FAILED:
|
|
switch (ccb->ccb_h.func_code) {
|
|
case XPT_SCSI_IO:
|
|
{
|
|
unsigned char *rcmd;
|
|
int rcmdlen;
|
|
|
|
/* fetch sense data */
|
|
DPRINTF(UDMASS_SCSI,("%s: Fetching %db sense data\n",
|
|
USBDEVNAME(sc->sc_dev),
|
|
sc->cam_scsi_sense.length));
|
|
|
|
/* the rest of the command was filled in at attach */
|
|
sc->cam_scsi_sense.length = csio->sense_len;
|
|
|
|
rcmd = (unsigned char *) &sc->cam_scsi_command;
|
|
|
|
if (sc->transform(sc,
|
|
(unsigned char *) &sc->cam_scsi_sense,
|
|
sizeof(sc->cam_scsi_sense),
|
|
&rcmd, &rcmdlen)) {
|
|
sc->transfer(sc, ccb->ccb_h.target_lun,
|
|
rcmd, rcmdlen,
|
|
&csio->sense_data,
|
|
csio->sense_len, DIR_IN,
|
|
umass_cam_sense_cb, (void *) ccb);
|
|
} else {
|
|
panic("transform(REQUEST_SENSE) failed\n");
|
|
}
|
|
break;
|
|
}
|
|
case XPT_RESET_DEV: /* Reset failed */
|
|
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
|
|
xpt_done(ccb);
|
|
break;
|
|
default:
|
|
panic("umass_cam_cb called for func_code %d\n",
|
|
ccb->ccb_h.func_code);
|
|
}
|
|
break;
|
|
|
|
case STATUS_WIRE_FAILED:
|
|
/* the wire protocol failed and will have recovered
|
|
* (hopefully). We return an error to CAM and let CAM retry
|
|
* the command if necessary.
|
|
*/
|
|
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
|
|
xpt_done(ccb);
|
|
break;
|
|
default:
|
|
panic("%s: Unknown status %d in umass_cam_cb\n",
|
|
USBDEVNAME(sc->sc_dev), status);
|
|
}
|
|
}
|
|
|
|
/* Finalise a completed autosense operation
|
|
*/
|
|
Static void
|
|
umass_cam_sense_cb(struct umass_softc *sc, void *priv, int residue, int status)
|
|
{
|
|
union ccb *ccb = (union ccb *) priv;
|
|
struct ccb_scsiio *csio = &ccb->csio; /* deref union */
|
|
|
|
switch (status) {
|
|
case STATUS_CMD_OK:
|
|
case STATUS_CMD_UNKNOWN:
|
|
/* Getting sense data succeeded. The length of the sense data
|
|
* is not returned in any way. The sense data itself contains
|
|
* the length of the sense data that is valid.
|
|
*/
|
|
if (sc->quirks & RS_NO_CLEAR_UA
|
|
&& csio->cdb_io.cdb_bytes[0] == INQUIRY
|
|
&& (csio->sense_data.flags & SSD_KEY)
|
|
== SSD_KEY_UNIT_ATTENTION) {
|
|
/* Ignore unit attention errors in the case where
|
|
* the Unit Attention state is not cleared on
|
|
* REQUEST SENSE. They will appear again at the next
|
|
* command.
|
|
*/
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
} else if ((csio->sense_data.flags & SSD_KEY)
|
|
== SSD_KEY_NO_SENSE) {
|
|
/* No problem after all (in the case of CBI without
|
|
* CCI)
|
|
*/
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
} else {
|
|
ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
|
|
| CAM_AUTOSNS_VALID;
|
|
csio->scsi_status = SCSI_STATUS_CHECK_COND;
|
|
}
|
|
xpt_done(ccb);
|
|
break;
|
|
|
|
default:
|
|
DPRINTF(UDMASS_SCSI, ("%s: Autosense failed, status %d\n",
|
|
USBDEVNAME(sc->sc_dev), status));
|
|
ccb->ccb_h.status = CAM_AUTOSENSE_FAIL;
|
|
xpt_done(ccb);
|
|
}
|
|
}
|
|
|
|
|
|
Static int
|
|
umass_driver_load(module_t mod, int what, void *arg)
|
|
{
|
|
int err;
|
|
|
|
switch (what) {
|
|
case MOD_UNLOAD:
|
|
err = umass_cam_detach_sim();
|
|
if (err)
|
|
return(err);
|
|
return(usbd_driver_load(mod, what, arg));
|
|
case MOD_LOAD:
|
|
/* We don't attach to CAM at this point, because it will try
|
|
* and malloc memory for it. This is not possible when the
|
|
* boot loader loads umass as a module before the kernel
|
|
* has been bootstrapped.
|
|
*/
|
|
default:
|
|
return(usbd_driver_load(mod, what, arg));
|
|
}
|
|
}
|
|
|
|
/*
|
|
* SCSI specific functions
|
|
*/
|
|
|
|
Static int
|
|
umass_scsi_transform(struct umass_softc *sc, unsigned char *cmd, int cmdlen,
|
|
unsigned char **rcmd, int *rcmdlen)
|
|
{
|
|
switch (cmd[0]) {
|
|
case TEST_UNIT_READY:
|
|
if (sc->quirks & NO_TEST_UNIT_READY) {
|
|
KASSERT(*rcmdlen >= sizeof(struct scsi_start_stop_unit),
|
|
("rcmdlen = %d < %d, buffer too small",
|
|
*rcmdlen, sizeof(struct scsi_start_stop_unit)));
|
|
DPRINTF(UDMASS_SCSI, ("%s: Converted TEST_UNIT_READY "
|
|
"to START_UNIT\n", USBDEVNAME(sc->sc_dev)));
|
|
memset(*rcmd, 0, *rcmdlen);
|
|
cmd[0] = START_STOP_UNIT;
|
|
cmd[4] = SSS_START;
|
|
return 1;
|
|
}
|
|
/* fallthrough */
|
|
default:
|
|
*rcmd = cmd; /* We don't need to copy it */
|
|
*rcmdlen = cmdlen;
|
|
}
|
|
|
|
return 1; /* success */
|
|
}
|
|
|
|
/*
|
|
* UFI specific functions
|
|
*/
|
|
|
|
Static int
|
|
umass_ufi_transform(struct umass_softc *sc, unsigned char *cmd, int cmdlen,
|
|
unsigned char **rcmd, int *rcmdlen)
|
|
{
|
|
/* A UFI command is always 12 bytes in length */
|
|
KASSERT(*rcmdlen >= UFI_COMMAND_LENGTH,
|
|
("rcmdlen = %d < %d, buffer too small",
|
|
*rcmdlen, UFI_COMMAND_LENGTH));
|
|
|
|
*rcmdlen = UFI_COMMAND_LENGTH;
|
|
memset(*rcmd, 0, UFI_COMMAND_LENGTH);
|
|
|
|
/* Handle any quirks */
|
|
if (cmd[0] == TEST_UNIT_READY
|
|
&& sc->quirks & NO_TEST_UNIT_READY) {
|
|
/* Some devices do not support this command.
|
|
* Start Stop Unit should give the same results
|
|
*/
|
|
DPRINTF(UDMASS_UFI, ("%s: Converted TEST_UNIT_READY "
|
|
"to START_UNIT\n", USBDEVNAME(sc->sc_dev)));
|
|
cmd[0] = START_STOP_UNIT;
|
|
cmd[4] = SSS_START;
|
|
return 1;
|
|
}
|
|
|
|
switch (cmd[0]) {
|
|
/* Commands of which the format has been verified. They should work. */
|
|
case TEST_UNIT_READY:
|
|
case REZERO_UNIT:
|
|
case REQUEST_SENSE:
|
|
case INQUIRY:
|
|
case START_STOP_UNIT:
|
|
case SEND_DIAGNOSTIC:
|
|
case PREVENT_ALLOW:
|
|
case READ_CAPACITY:
|
|
case READ_10:
|
|
case WRITE_10:
|
|
case POSITION_TO_ELEMENT: /* SEEK_10 */
|
|
case MODE_SELECT_10:
|
|
case MODE_SENSE_10:
|
|
/* Copy the command into the (zeroed out) destination buffer */
|
|
memcpy(*rcmd, cmd, cmdlen);
|
|
return 1; /* success */
|
|
|
|
/* Other UFI commands: FORMAT_UNIT, MODE_SELECT, READ_FORMAT_CAPACITY,
|
|
* VERIFY, WRITE_AND_VERIFY.
|
|
* These should be checked whether they somehow can be made to fit.
|
|
*/
|
|
|
|
/* These commands are known _not_ to work. They should be converted
|
|
* The 6 byte commands can be switched off with a CAM quirk. See
|
|
* the entry for the Y-E data drive.
|
|
*/
|
|
case READ_6:
|
|
case WRITE_6:
|
|
case MODE_SENSE_6:
|
|
case MODE_SELECT_6:
|
|
case READ_12:
|
|
case WRITE_12:
|
|
default:
|
|
printf("%s: Unsupported UFI command 0x%02x",
|
|
USBDEVNAME(sc->sc_dev), cmd[0]);
|
|
if (cmdlen == 6)
|
|
printf(", 6 byte command should have been converted");
|
|
printf("\n");
|
|
return 0; /* failure */
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 8070i (ATAPI) specific functions
|
|
*/
|
|
Static int
|
|
umass_atapi_transform(struct umass_softc *sc, unsigned char *cmd, int cmdlen,
|
|
unsigned char **rcmd, int *rcmdlen)
|
|
{
|
|
/* A ATAPI command is always 12 bytes in length */
|
|
KASSERT(*rcmdlen >= ATAPI_COMMAND_LENGTH,
|
|
("rcmdlen = %d < %d, buffer too small",
|
|
*rcmdlen, ATAPI_COMMAND_LENGTH));
|
|
|
|
*rcmdlen = ATAPI_COMMAND_LENGTH;
|
|
memset(*rcmd, 0, ATAPI_COMMAND_LENGTH);
|
|
|
|
switch (cmd[0]) {
|
|
/* Commands of which the format has been verified. They should work. */
|
|
case TEST_UNIT_READY:
|
|
case REZERO_UNIT:
|
|
case REQUEST_SENSE:
|
|
case INQUIRY:
|
|
case START_STOP_UNIT:
|
|
case SEND_DIAGNOSTIC:
|
|
case PREVENT_ALLOW:
|
|
case READ_CAPACITY:
|
|
case READ_10:
|
|
case WRITE_10:
|
|
case POSITION_TO_ELEMENT: /* SEEK_10 */
|
|
case MODE_SELECT_10:
|
|
case MODE_SENSE_10:
|
|
/* Copy the command into the (zeroed out) destination buffer */
|
|
memcpy(*rcmd, cmd, cmdlen);
|
|
return 1; /* success */
|
|
|
|
/* These commands are known _not_ to work. They should be converted
|
|
* The 6 byte commands can be switched off with a CAM quirk. See
|
|
* the entry for the Y-E data drive.
|
|
*/
|
|
case READ_6:
|
|
case WRITE_6:
|
|
case MODE_SENSE_6:
|
|
case MODE_SELECT_6:
|
|
case READ_12:
|
|
case WRITE_12:
|
|
default:
|
|
printf("%s: Unsupported ATAPI command 0x%02x",
|
|
USBDEVNAME(sc->sc_dev), cmd[0]);
|
|
if (cmdlen == 6)
|
|
printf(", 6 byte command should have been converted");
|
|
printf("\n");
|
|
return 0; /* failure */
|
|
}
|
|
}
|
|
|
|
|
|
/* (even the comment is missing) */
|
|
|
|
DRIVER_MODULE(umass, uhub, umass_driver, umass_devclass, umass_driver_load, 0);
|
|
|
|
|
|
|
|
#ifdef UMASS_DEBUG
|
|
Static void
|
|
umass_bbb_dump_cbw(struct umass_softc *sc, umass_bbb_cbw_t *cbw)
|
|
{
|
|
int clen = cbw->bCDBLength;
|
|
int dlen = UGETDW(cbw->dCBWDataTransferLength);
|
|
u_int8_t *c = cbw->CBWCDB;
|
|
int tag = UGETDW(cbw->dCBWTag);
|
|
int flags = cbw->bCBWFlags;
|
|
|
|
DPRINTF(UDMASS_BBB, ("%s: CBW %d: cmd = %db "
|
|
"(0x%02x%02x%02x%02x%02x%02x%s), "
|
|
"data = %d bytes, dir = %s\n",
|
|
USBDEVNAME(sc->sc_dev), tag, clen,
|
|
c[0], c[1], c[2], c[3], c[4], c[5], (clen > 6? "...":""),
|
|
dlen, (flags == CBWFLAGS_IN? "in":
|
|
(flags == CBWFLAGS_OUT? "out":"<invalid>"))));
|
|
}
|
|
|
|
Static void
|
|
umass_bbb_dump_csw(struct umass_softc *sc, umass_bbb_csw_t *csw)
|
|
{
|
|
int sig = UGETDW(csw->dCSWSignature);
|
|
int tag = UGETW(csw->dCSWTag);
|
|
int res = UGETDW(csw->dCSWDataResidue);
|
|
int status = csw->bCSWStatus;
|
|
|
|
DPRINTF(UDMASS_BBB, ("%s: CSW %d: sig = 0x%08x (%s), tag = %d, "
|
|
"res = %d, status = 0x%02x (%s)\n", USBDEVNAME(sc->sc_dev),
|
|
tag, sig, (sig == CSWSIGNATURE? "valid":"invalid"),
|
|
tag, res,
|
|
status, (status == CSWSTATUS_GOOD? "good":
|
|
(status == CSWSTATUS_FAILED? "failed":
|
|
(status == CSWSTATUS_PHASE? "phase":"<invalid>")))));
|
|
}
|
|
|
|
Static void
|
|
umass_dump_buffer(struct umass_softc *sc, u_int8_t *buffer, int buflen,
|
|
int printlen)
|
|
{
|
|
int i, j;
|
|
char s1[40];
|
|
char s2[40];
|
|
char s3[5];
|
|
|
|
s1[0] = '\0';
|
|
s3[0] = '\0';
|
|
|
|
sprintf(s2, " buffer=%p, buflen=%d", buffer, buflen);
|
|
for (i = 0; i < buflen && i < printlen; i++) {
|
|
j = i % 16;
|
|
if (j == 0 && i != 0) {
|
|
DPRINTF(UDMASS_GEN, ("%s: 0x %s%s\n",
|
|
USBDEVNAME(sc->sc_dev), s1, s2));
|
|
s2[0] = '\0';
|
|
}
|
|
sprintf(&s1[j*2], "%02x", buffer[i] & 0xff);
|
|
}
|
|
if (buflen > printlen)
|
|
sprintf(s3, " ...");
|
|
DPRINTF(UDMASS_GEN, ("%s: 0x %s%s%s\n",
|
|
USBDEVNAME(sc->sc_dev), s1, s2, s3));
|
|
}
|
|
#endif
|