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freebsd-dev/sys/dev/usb/storage/umass.c
Warner Losh f809f280e0 Create a USB_PNP_INFO and use it to export the existing PNP 
tables. Some drivers needed some slight re-arrangement of declarations
to accommodate this. Change the USB pnp tables slightly to allow
better compatibility with the system by moving linux driver info from
start of each entry to the end. All other PNP tables in the system
have the per-device flags and such at the end of the elements rather
that at the beginning.

Differential Review: https://reviews.freebsd.org/D3458
2015-12-11 05:28:00 +00:00

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#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
/*-
* Copyright (c) 1999 MAEKAWA Masahide <bishop@rr.iij4u.or.jp>,
* Nick Hibma <n_hibma@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
* $NetBSD: umass.c,v 1.28 2000/04/02 23:46:53 augustss Exp $
*/
/* Also already merged from NetBSD:
* $NetBSD: umass.c,v 1.67 2001/11/25 19:05:22 augustss Exp $
* $NetBSD: umass.c,v 1.90 2002/11/04 19:17:33 pooka Exp $
* $NetBSD: umass.c,v 1.108 2003/11/07 17:03:25 wiz Exp $
* $NetBSD: umass.c,v 1.109 2003/12/04 13:57:31 keihan Exp $
*/
/*
* Universal Serial Bus Mass Storage Class specs:
* http://www.usb.org/developers/devclass_docs/usb_msc_overview_1.2.pdf
* http://www.usb.org/developers/devclass_docs/usbmassbulk_10.pdf
* http://www.usb.org/developers/devclass_docs/usb_msc_cbi_1.1.pdf
* http://www.usb.org/developers/devclass_docs/usbmass-ufi10.pdf
*/
/*
* Ported to NetBSD by Lennart Augustsson <augustss@NetBSD.org>.
* Parts of the code written by Jason R. Thorpe <thorpej@shagadelic.org>.
*/
/*
* The driver handles 3 Wire Protocols
* - Command/Bulk/Interrupt (CBI)
* - Command/Bulk/Interrupt with Command Completion Interrupt (CBI with CCI)
* - Mass Storage Bulk-Only (BBB)
* (BBB refers Bulk/Bulk/Bulk for Command/Data/Status phases)
*
* Over these wire protocols it handles the following command protocols
* - SCSI
* - UFI (floppy command set)
* - 8070i (ATAPI)
*
* UFI and 8070i (ATAPI) are transformed versions of the SCSI command set. The
* sc->sc_transform method is used to convert the commands into the appropriate
* format (if at all necessary). For example, UFI requires all commands to be
* 12 bytes in length amongst other things.
*
* The source code below is marked and can be split into a number of pieces
* (in this order):
*
* - probe/attach/detach
* - generic transfer routines
* - BBB
* - CBI
* - CBI_I (in addition to functions from CBI)
* - CAM (Common Access Method)
* - SCSI
* - UFI
* - 8070i (ATAPI)
*
* The protocols are implemented using a state machine, for the transfers as
* well as for the resets. The state machine is contained in umass_t_*_callback.
* The state machine is started through either umass_command_start() or
* umass_reset().
*
* The reason for doing this is a) CAM performs a lot better this way and b) it
* avoids using tsleep from interrupt context (for example after a failed
* transfer).
*/
/*
* The SCSI related part of this driver has been derived from the
* dev/ppbus/vpo.c driver, by Nicolas Souchu (nsouch@FreeBSD.org).
*
* The CAM layer uses so called actions which are messages sent to the host
* adapter for completion. The actions come in through umass_cam_action. The
* appropriate block of routines is called depending on the transport protocol
* in use. When the transfer has finished, these routines call
* umass_cam_cb again to complete the CAM command.
*/
#include <sys/stdint.h>
#include <sys/stddef.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include "usbdevs.h"
#include <dev/usb/quirk/usb_quirk.h>
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_sim.h>
#include <cam/cam_xpt_sim.h>
#include <cam/scsi/scsi_all.h>
#include <cam/scsi/scsi_da.h>
#include <cam/cam_periph.h>
#ifdef USB_DEBUG
#define DIF(m, x) \
do { \
if (umass_debug & (m)) { x ; } \
} while (0)
#define DPRINTF(sc, m, fmt, ...) \
do { \
if (umass_debug & (m)) { \
printf("%s:%s: " fmt, \
(sc) ? (const char *)(sc)->sc_name : \
(const char *)"umassX", \
__FUNCTION__ ,## __VA_ARGS__); \
} \
} while (0)
#define UDMASS_GEN 0x00010000 /* general */
#define UDMASS_SCSI 0x00020000 /* scsi */
#define UDMASS_UFI 0x00040000 /* ufi command set */
#define UDMASS_ATAPI 0x00080000 /* 8070i command set */
#define UDMASS_CMD (UDMASS_SCSI|UDMASS_UFI|UDMASS_ATAPI)
#define UDMASS_USB 0x00100000 /* USB general */
#define UDMASS_BBB 0x00200000 /* Bulk-Only transfers */
#define UDMASS_CBI 0x00400000 /* CBI transfers */
#define UDMASS_WIRE (UDMASS_BBB|UDMASS_CBI)
#define UDMASS_ALL 0xffff0000 /* all of the above */
static int umass_debug;
static int umass_throttle;
static SYSCTL_NODE(_hw_usb, OID_AUTO, umass, CTLFLAG_RW, 0, "USB umass");
SYSCTL_INT(_hw_usb_umass, OID_AUTO, debug, CTLFLAG_RWTUN,
&umass_debug, 0, "umass debug level");
SYSCTL_INT(_hw_usb_umass, OID_AUTO, throttle, CTLFLAG_RWTUN,
&umass_throttle, 0, "Forced delay between commands in milliseconds");
#else
#define DIF(...) do { } while (0)
#define DPRINTF(...) do { } while (0)
#endif
#define UMASS_BULK_SIZE (1 << 17)
#define UMASS_CBI_DIAGNOSTIC_CMDLEN 12 /* bytes */
#define UMASS_MAX_CMDLEN MAX(12, CAM_MAX_CDBLEN) /* bytes */
/* USB transfer definitions */
#define UMASS_T_BBB_RESET1 0 /* Bulk-Only */
#define UMASS_T_BBB_RESET2 1
#define UMASS_T_BBB_RESET3 2
#define UMASS_T_BBB_COMMAND 3
#define UMASS_T_BBB_DATA_READ 4
#define UMASS_T_BBB_DATA_RD_CS 5
#define UMASS_T_BBB_DATA_WRITE 6
#define UMASS_T_BBB_DATA_WR_CS 7
#define UMASS_T_BBB_STATUS 8
#define UMASS_T_BBB_MAX 9
#define UMASS_T_CBI_RESET1 0 /* CBI */
#define UMASS_T_CBI_RESET2 1
#define UMASS_T_CBI_RESET3 2
#define UMASS_T_CBI_COMMAND 3
#define UMASS_T_CBI_DATA_READ 4
#define UMASS_T_CBI_DATA_RD_CS 5
#define UMASS_T_CBI_DATA_WRITE 6
#define UMASS_T_CBI_DATA_WR_CS 7
#define UMASS_T_CBI_STATUS 8
#define UMASS_T_CBI_RESET4 9
#define UMASS_T_CBI_MAX 10
#define UMASS_T_MAX MAX(UMASS_T_CBI_MAX, UMASS_T_BBB_MAX)
/* Generic definitions */
/* Direction for transfer */
#define DIR_NONE 0
#define DIR_IN 1
#define DIR_OUT 2
/* device name */
#define DEVNAME "umass"
#define DEVNAME_SIM "umass-sim"
/* Approximate maximum transfer speeds (assumes 33% overhead). */
#define UMASS_FULL_TRANSFER_SPEED 1000
#define UMASS_HIGH_TRANSFER_SPEED 40000
#define UMASS_SUPER_TRANSFER_SPEED 400000
#define UMASS_FLOPPY_TRANSFER_SPEED 20
#define UMASS_TIMEOUT 5000 /* ms */
/* CAM specific definitions */
#define UMASS_SCSIID_MAX 1 /* maximum number of drives expected */
#define UMASS_SCSIID_HOST UMASS_SCSIID_MAX
/* Bulk-Only features */
#define UR_BBB_RESET 0xff /* Bulk-Only reset */
#define UR_BBB_GET_MAX_LUN 0xfe /* Get maximum lun */
/* Command Block Wrapper */
typedef struct {
uDWord dCBWSignature;
#define CBWSIGNATURE 0x43425355
uDWord dCBWTag;
uDWord dCBWDataTransferLength;
uByte bCBWFlags;
#define CBWFLAGS_OUT 0x00
#define CBWFLAGS_IN 0x80
uByte bCBWLUN;
uByte bCDBLength;
#define CBWCDBLENGTH 16
uByte CBWCDB[CBWCDBLENGTH];
} __packed umass_bbb_cbw_t;
#define UMASS_BBB_CBW_SIZE 31
/* Command Status Wrapper */
typedef struct {
uDWord dCSWSignature;
#define CSWSIGNATURE 0x53425355
#define CSWSIGNATURE_IMAGINATION_DBX1 0x43425355
#define CSWSIGNATURE_OLYMPUS_C1 0x55425355
uDWord dCSWTag;
uDWord dCSWDataResidue;
uByte bCSWStatus;
#define CSWSTATUS_GOOD 0x0
#define CSWSTATUS_FAILED 0x1
#define CSWSTATUS_PHASE 0x2
} __packed umass_bbb_csw_t;
#define UMASS_BBB_CSW_SIZE 13
/* CBI features */
#define UR_CBI_ADSC 0x00
typedef union {
struct {
uint8_t type;
#define IDB_TYPE_CCI 0x00
uint8_t value;
#define IDB_VALUE_PASS 0x00
#define IDB_VALUE_FAIL 0x01
#define IDB_VALUE_PHASE 0x02
#define IDB_VALUE_PERSISTENT 0x03
#define IDB_VALUE_STATUS_MASK 0x03
} __packed common;
struct {
uint8_t asc;
uint8_t ascq;
} __packed ufi;
} __packed umass_cbi_sbl_t;
struct umass_softc; /* see below */
typedef void (umass_callback_t)(struct umass_softc *sc, union ccb *ccb,
uint32_t residue, uint8_t status);
#define STATUS_CMD_OK 0 /* everything ok */
#define STATUS_CMD_UNKNOWN 1 /* will have to fetch sense */
#define STATUS_CMD_FAILED 2 /* transfer was ok, command failed */
#define STATUS_WIRE_FAILED 3 /* couldn't even get command across */
typedef uint8_t (umass_transform_t)(struct umass_softc *sc, uint8_t *cmd_ptr,
uint8_t cmd_len);
/* Wire and command protocol */
#define UMASS_PROTO_BBB 0x0001 /* USB wire protocol */
#define UMASS_PROTO_CBI 0x0002
#define UMASS_PROTO_CBI_I 0x0004
#define UMASS_PROTO_WIRE 0x00ff /* USB wire protocol mask */
#define UMASS_PROTO_SCSI 0x0100 /* command protocol */
#define UMASS_PROTO_ATAPI 0x0200
#define UMASS_PROTO_UFI 0x0400
#define UMASS_PROTO_RBC 0x0800
#define UMASS_PROTO_COMMAND 0xff00 /* command protocol mask */
/* Device specific quirks */
#define NO_QUIRKS 0x0000
/*
* The drive does not support Test Unit Ready. Convert to Start Unit
*/
#define NO_TEST_UNIT_READY 0x0001
/*
* The drive does not reset the Unit Attention state after REQUEST
* SENSE has been sent. The INQUIRY command does not reset the UA
* either, and so CAM runs in circles trying to retrieve the initial
* INQUIRY data.
*/
#define RS_NO_CLEAR_UA 0x0002
/* The drive does not support START STOP. */
#define NO_START_STOP 0x0004
/* Don't ask for full inquiry data (255b). */
#define FORCE_SHORT_INQUIRY 0x0008
/* Needs to be initialised the Shuttle way */
#define SHUTTLE_INIT 0x0010
/* Drive needs to be switched to alternate iface 1 */
#define ALT_IFACE_1 0x0020
/* Drive does not do 1Mb/s, but just floppy speeds (20kb/s) */
#define FLOPPY_SPEED 0x0040
/* The device can't count and gets the residue of transfers wrong */
#define IGNORE_RESIDUE 0x0080
/* No GetMaxLun call */
#define NO_GETMAXLUN 0x0100
/* The device uses a weird CSWSIGNATURE. */
#define WRONG_CSWSIG 0x0200
/* Device cannot handle INQUIRY so fake a generic response */
#define NO_INQUIRY 0x0400
/* Device cannot handle INQUIRY EVPD, return CHECK CONDITION */
#define NO_INQUIRY_EVPD 0x0800
/* Pad all RBC requests to 12 bytes. */
#define RBC_PAD_TO_12 0x1000
/*
* Device reports number of sectors from READ_CAPACITY, not max
* sector number.
*/
#define READ_CAPACITY_OFFBY1 0x2000
/*
* Device cannot handle a SCSI synchronize cache command. Normally
* this quirk would be handled in the cam layer, but for IDE bridges
* we need to associate the quirk with the bridge and not the
* underlying disk device. This is handled by faking a success
* result.
*/
#define NO_SYNCHRONIZE_CACHE 0x4000
/* Device does not support 'PREVENT/ALLOW MEDIUM REMOVAL'. */
#define NO_PREVENT_ALLOW 0x8000
struct umass_softc {
struct scsi_sense cam_scsi_sense;
struct scsi_test_unit_ready cam_scsi_test_unit_ready;
struct mtx sc_mtx;
struct {
uint8_t *data_ptr;
union ccb *ccb;
umass_callback_t *callback;
uint32_t data_len; /* bytes */
uint32_t data_rem; /* bytes */
uint32_t data_timeout; /* ms */
uint32_t actlen; /* bytes */
uint8_t cmd_data[UMASS_MAX_CMDLEN];
uint8_t cmd_len; /* bytes */
uint8_t dir;
uint8_t lun;
} sc_transfer;
/* Bulk specific variables for transfers in progress */
umass_bbb_cbw_t cbw; /* command block wrapper */
umass_bbb_csw_t csw; /* command status wrapper */
/* CBI specific variables for transfers in progress */
umass_cbi_sbl_t sbl; /* status block */
device_t sc_dev;
struct usb_device *sc_udev;
struct cam_sim *sc_sim; /* SCSI Interface Module */
struct usb_xfer *sc_xfer[UMASS_T_MAX];
/*
* The command transform function is used to convert the SCSI
* commands into their derivatives, like UFI, ATAPI, and friends.
*/
umass_transform_t *sc_transform;
uint32_t sc_unit;
uint32_t sc_quirks; /* they got it almost right */
uint32_t sc_proto; /* wire and cmd protocol */
uint8_t sc_name[16];
uint8_t sc_iface_no; /* interface number */
uint8_t sc_maxlun; /* maximum LUN number, inclusive */
uint8_t sc_last_xfer_index;
uint8_t sc_status_try;
};
struct umass_probe_proto {
uint32_t quirks;
uint32_t proto;
int error;
};
/* prototypes */
static device_probe_t umass_probe;
static device_attach_t umass_attach;
static device_detach_t umass_detach;
static usb_callback_t umass_tr_error;
static usb_callback_t umass_t_bbb_reset1_callback;
static usb_callback_t umass_t_bbb_reset2_callback;
static usb_callback_t umass_t_bbb_reset3_callback;
static usb_callback_t umass_t_bbb_command_callback;
static usb_callback_t umass_t_bbb_data_read_callback;
static usb_callback_t umass_t_bbb_data_rd_cs_callback;
static usb_callback_t umass_t_bbb_data_write_callback;
static usb_callback_t umass_t_bbb_data_wr_cs_callback;
static usb_callback_t umass_t_bbb_status_callback;
static usb_callback_t umass_t_cbi_reset1_callback;
static usb_callback_t umass_t_cbi_reset2_callback;
static usb_callback_t umass_t_cbi_reset3_callback;
static usb_callback_t umass_t_cbi_reset4_callback;
static usb_callback_t umass_t_cbi_command_callback;
static usb_callback_t umass_t_cbi_data_read_callback;
static usb_callback_t umass_t_cbi_data_rd_cs_callback;
static usb_callback_t umass_t_cbi_data_write_callback;
static usb_callback_t umass_t_cbi_data_wr_cs_callback;
static usb_callback_t umass_t_cbi_status_callback;
static void umass_cancel_ccb(struct umass_softc *);
static void umass_init_shuttle(struct umass_softc *);
static void umass_reset(struct umass_softc *);
static void umass_t_bbb_data_clear_stall_callback(struct usb_xfer *,
uint8_t, uint8_t, usb_error_t);
static void umass_command_start(struct umass_softc *, uint8_t, void *,
uint32_t, uint32_t, umass_callback_t *, union ccb *);
static uint8_t umass_bbb_get_max_lun(struct umass_softc *);
static void umass_cbi_start_status(struct umass_softc *);
static void umass_t_cbi_data_clear_stall_callback(struct usb_xfer *,
uint8_t, uint8_t, usb_error_t);
static int umass_cam_attach_sim(struct umass_softc *);
static void umass_cam_attach(struct umass_softc *);
static void umass_cam_detach_sim(struct umass_softc *);
static void umass_cam_action(struct cam_sim *, union ccb *);
static void umass_cam_poll(struct cam_sim *);
static void umass_cam_cb(struct umass_softc *, union ccb *, uint32_t,
uint8_t);
static void umass_cam_sense_cb(struct umass_softc *, union ccb *, uint32_t,
uint8_t);
static void umass_cam_quirk_cb(struct umass_softc *, union ccb *, uint32_t,
uint8_t);
static uint8_t umass_scsi_transform(struct umass_softc *, uint8_t *, uint8_t);
static uint8_t umass_rbc_transform(struct umass_softc *, uint8_t *, uint8_t);
static uint8_t umass_ufi_transform(struct umass_softc *, uint8_t *, uint8_t);
static uint8_t umass_atapi_transform(struct umass_softc *, uint8_t *,
uint8_t);
static uint8_t umass_no_transform(struct umass_softc *, uint8_t *, uint8_t);
static uint8_t umass_std_transform(struct umass_softc *, union ccb *, uint8_t
*, uint8_t);
#ifdef USB_DEBUG
static void umass_bbb_dump_cbw(struct umass_softc *, umass_bbb_cbw_t *);
static void umass_bbb_dump_csw(struct umass_softc *, umass_bbb_csw_t *);
static void umass_cbi_dump_cmd(struct umass_softc *, void *, uint8_t);
static void umass_dump_buffer(struct umass_softc *, uint8_t *, uint32_t,
uint32_t);
#endif
static struct usb_config umass_bbb_config[UMASS_T_BBB_MAX] = {
[UMASS_T_BBB_RESET1] = {
.type = UE_CONTROL,
.endpoint = 0x00, /* Control pipe */
.direction = UE_DIR_ANY,
.bufsize = sizeof(struct usb_device_request),
.callback = &umass_t_bbb_reset1_callback,
.timeout = 5000, /* 5 seconds */
.interval = 500, /* 500 milliseconds */
},
[UMASS_T_BBB_RESET2] = {
.type = UE_CONTROL,
.endpoint = 0x00, /* Control pipe */
.direction = UE_DIR_ANY,
.bufsize = sizeof(struct usb_device_request),
.callback = &umass_t_bbb_reset2_callback,
.timeout = 5000, /* 5 seconds */
.interval = 50, /* 50 milliseconds */
},
[UMASS_T_BBB_RESET3] = {
.type = UE_CONTROL,
.endpoint = 0x00, /* Control pipe */
.direction = UE_DIR_ANY,
.bufsize = sizeof(struct usb_device_request),
.callback = &umass_t_bbb_reset3_callback,
.timeout = 5000, /* 5 seconds */
.interval = 50, /* 50 milliseconds */
},
[UMASS_T_BBB_COMMAND] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = sizeof(umass_bbb_cbw_t),
.callback = &umass_t_bbb_command_callback,
.timeout = 5000, /* 5 seconds */
},
[UMASS_T_BBB_DATA_READ] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.bufsize = UMASS_BULK_SIZE,
.flags = {.proxy_buffer = 1,.short_xfer_ok = 1,.ext_buffer=1,},
.callback = &umass_t_bbb_data_read_callback,
.timeout = 0, /* overwritten later */
},
[UMASS_T_BBB_DATA_RD_CS] = {
.type = UE_CONTROL,
.endpoint = 0x00, /* Control pipe */
.direction = UE_DIR_ANY,
.bufsize = sizeof(struct usb_device_request),
.callback = &umass_t_bbb_data_rd_cs_callback,
.timeout = 5000, /* 5 seconds */
},
[UMASS_T_BBB_DATA_WRITE] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = UMASS_BULK_SIZE,
.flags = {.proxy_buffer = 1,.short_xfer_ok = 1,.ext_buffer=1,},
.callback = &umass_t_bbb_data_write_callback,
.timeout = 0, /* overwritten later */
},
[UMASS_T_BBB_DATA_WR_CS] = {
.type = UE_CONTROL,
.endpoint = 0x00, /* Control pipe */
.direction = UE_DIR_ANY,
.bufsize = sizeof(struct usb_device_request),
.callback = &umass_t_bbb_data_wr_cs_callback,
.timeout = 5000, /* 5 seconds */
},
[UMASS_T_BBB_STATUS] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.bufsize = sizeof(umass_bbb_csw_t),
.flags = {.short_xfer_ok = 1,},
.callback = &umass_t_bbb_status_callback,
.timeout = 5000, /* ms */
},
};
static struct usb_config umass_cbi_config[UMASS_T_CBI_MAX] = {
[UMASS_T_CBI_RESET1] = {
.type = UE_CONTROL,
.endpoint = 0x00, /* Control pipe */
.direction = UE_DIR_ANY,
.bufsize = (sizeof(struct usb_device_request) +
UMASS_CBI_DIAGNOSTIC_CMDLEN),
.callback = &umass_t_cbi_reset1_callback,
.timeout = 5000, /* 5 seconds */
.interval = 500, /* 500 milliseconds */
},
[UMASS_T_CBI_RESET2] = {
.type = UE_CONTROL,
.endpoint = 0x00, /* Control pipe */
.direction = UE_DIR_ANY,
.bufsize = sizeof(struct usb_device_request),
.callback = &umass_t_cbi_reset2_callback,
.timeout = 5000, /* 5 seconds */
.interval = 50, /* 50 milliseconds */
},
[UMASS_T_CBI_RESET3] = {
.type = UE_CONTROL,
.endpoint = 0x00, /* Control pipe */
.direction = UE_DIR_ANY,
.bufsize = sizeof(struct usb_device_request),
.callback = &umass_t_cbi_reset3_callback,
.timeout = 5000, /* 5 seconds */
.interval = 50, /* 50 milliseconds */
},
[UMASS_T_CBI_COMMAND] = {
.type = UE_CONTROL,
.endpoint = 0x00, /* Control pipe */
.direction = UE_DIR_ANY,
.bufsize = (sizeof(struct usb_device_request) +
UMASS_MAX_CMDLEN),
.callback = &umass_t_cbi_command_callback,
.timeout = 5000, /* 5 seconds */
},
[UMASS_T_CBI_DATA_READ] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.bufsize = UMASS_BULK_SIZE,
.flags = {.proxy_buffer = 1,.short_xfer_ok = 1,.ext_buffer=1,},
.callback = &umass_t_cbi_data_read_callback,
.timeout = 0, /* overwritten later */
},
[UMASS_T_CBI_DATA_RD_CS] = {
.type = UE_CONTROL,
.endpoint = 0x00, /* Control pipe */
.direction = UE_DIR_ANY,
.bufsize = sizeof(struct usb_device_request),
.callback = &umass_t_cbi_data_rd_cs_callback,
.timeout = 5000, /* 5 seconds */
},
[UMASS_T_CBI_DATA_WRITE] = {
.type = UE_BULK,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_OUT,
.bufsize = UMASS_BULK_SIZE,
.flags = {.proxy_buffer = 1,.short_xfer_ok = 1,.ext_buffer=1,},
.callback = &umass_t_cbi_data_write_callback,
.timeout = 0, /* overwritten later */
},
[UMASS_T_CBI_DATA_WR_CS] = {
.type = UE_CONTROL,
.endpoint = 0x00, /* Control pipe */
.direction = UE_DIR_ANY,
.bufsize = sizeof(struct usb_device_request),
.callback = &umass_t_cbi_data_wr_cs_callback,
.timeout = 5000, /* 5 seconds */
},
[UMASS_T_CBI_STATUS] = {
.type = UE_INTERRUPT,
.endpoint = UE_ADDR_ANY,
.direction = UE_DIR_IN,
.flags = {.short_xfer_ok = 1,.no_pipe_ok = 1,},
.bufsize = sizeof(umass_cbi_sbl_t),
.callback = &umass_t_cbi_status_callback,
.timeout = 5000, /* ms */
},
[UMASS_T_CBI_RESET4] = {
.type = UE_CONTROL,
.endpoint = 0x00, /* Control pipe */
.direction = UE_DIR_ANY,
.bufsize = sizeof(struct usb_device_request),
.callback = &umass_t_cbi_reset4_callback,
.timeout = 5000, /* ms */
},
};
/* If device cannot return valid inquiry data, fake it */
static const uint8_t fake_inq_data[SHORT_INQUIRY_LENGTH] = {
0, /* removable */ 0x80, SCSI_REV_2, SCSI_REV_2,
/* additional_length */ 31, 0, 0, 0
};
#define UFI_COMMAND_LENGTH 12 /* UFI commands are always 12 bytes */
#define ATAPI_COMMAND_LENGTH 12 /* ATAPI commands are always 12 bytes */
static devclass_t umass_devclass;
static device_method_t umass_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, umass_probe),
DEVMETHOD(device_attach, umass_attach),
DEVMETHOD(device_detach, umass_detach),
DEVMETHOD_END
};
static driver_t umass_driver = {
.name = "umass",
.methods = umass_methods,
.size = sizeof(struct umass_softc),
};
static const STRUCT_USB_HOST_ID __used umass_devs[] = {
/* generic mass storage class */
{USB_IFACE_CLASS(UICLASS_MASS),},
};
DRIVER_MODULE(umass, uhub, umass_driver, umass_devclass, NULL, 0);
MODULE_DEPEND(umass, usb, 1, 1, 1);
MODULE_DEPEND(umass, cam, 1, 1, 1);
MODULE_VERSION(umass, 1);
USB_PNP_HOST_INFO(umass_devs);
/*
* USB device probe/attach/detach
*/
static uint16_t
umass_get_proto(struct usb_interface *iface)
{
struct usb_interface_descriptor *id;
uint16_t retval;
retval = 0;
/* Check for a standards compliant device */
id = usbd_get_interface_descriptor(iface);
if ((id == NULL) ||
(id->bInterfaceClass != UICLASS_MASS)) {
goto done;
}
switch (id->bInterfaceSubClass) {
case UISUBCLASS_SCSI:
retval |= UMASS_PROTO_SCSI;
break;
case UISUBCLASS_UFI:
retval |= UMASS_PROTO_UFI;
break;
case UISUBCLASS_RBC:
retval |= UMASS_PROTO_RBC;
break;
case UISUBCLASS_SFF8020I:
case UISUBCLASS_SFF8070I:
retval |= UMASS_PROTO_ATAPI;
break;
default:
goto done;
}
switch (id->bInterfaceProtocol) {
case UIPROTO_MASS_CBI:
retval |= UMASS_PROTO_CBI;
break;
case UIPROTO_MASS_CBI_I:
retval |= UMASS_PROTO_CBI_I;
break;
case UIPROTO_MASS_BBB_OLD:
case UIPROTO_MASS_BBB:
retval |= UMASS_PROTO_BBB;
break;
default:
goto done;
}
done:
return (retval);
}
/*
* Match the device we are seeing with the devices supported.
*/
static struct umass_probe_proto
umass_probe_proto(device_t dev, struct usb_attach_arg *uaa)
{
struct umass_probe_proto ret;
uint32_t quirks = NO_QUIRKS;
uint32_t proto = umass_get_proto(uaa->iface);
memset(&ret, 0, sizeof(ret));
ret.error = BUS_PROBE_GENERIC;
/* Search for protocol enforcement */
if (usb_test_quirk(uaa, UQ_MSC_FORCE_WIRE_BBB)) {
proto &= ~UMASS_PROTO_WIRE;
proto |= UMASS_PROTO_BBB;
} else if (usb_test_quirk(uaa, UQ_MSC_FORCE_WIRE_CBI)) {
proto &= ~UMASS_PROTO_WIRE;
proto |= UMASS_PROTO_CBI;
} else if (usb_test_quirk(uaa, UQ_MSC_FORCE_WIRE_CBI_I)) {
proto &= ~UMASS_PROTO_WIRE;
proto |= UMASS_PROTO_CBI_I;
}
if (usb_test_quirk(uaa, UQ_MSC_FORCE_PROTO_SCSI)) {
proto &= ~UMASS_PROTO_COMMAND;
proto |= UMASS_PROTO_SCSI;
} else if (usb_test_quirk(uaa, UQ_MSC_FORCE_PROTO_ATAPI)) {
proto &= ~UMASS_PROTO_COMMAND;
proto |= UMASS_PROTO_ATAPI;
} else if (usb_test_quirk(uaa, UQ_MSC_FORCE_PROTO_UFI)) {
proto &= ~UMASS_PROTO_COMMAND;
proto |= UMASS_PROTO_UFI;
} else if (usb_test_quirk(uaa, UQ_MSC_FORCE_PROTO_RBC)) {
proto &= ~UMASS_PROTO_COMMAND;
proto |= UMASS_PROTO_RBC;
}
/* Check if the protocol is invalid */
if ((proto & UMASS_PROTO_COMMAND) == 0) {
ret.error = ENXIO;
goto done;
}
if ((proto & UMASS_PROTO_WIRE) == 0) {
ret.error = ENXIO;
goto done;
}
/* Search for quirks */
if (usb_test_quirk(uaa, UQ_MSC_NO_TEST_UNIT_READY))
quirks |= NO_TEST_UNIT_READY;
if (usb_test_quirk(uaa, UQ_MSC_NO_RS_CLEAR_UA))
quirks |= RS_NO_CLEAR_UA;
if (usb_test_quirk(uaa, UQ_MSC_NO_START_STOP))
quirks |= NO_START_STOP;
if (usb_test_quirk(uaa, UQ_MSC_NO_GETMAXLUN))
quirks |= NO_GETMAXLUN;
if (usb_test_quirk(uaa, UQ_MSC_NO_INQUIRY))
quirks |= NO_INQUIRY;
if (usb_test_quirk(uaa, UQ_MSC_NO_INQUIRY_EVPD))
quirks |= NO_INQUIRY_EVPD;
if (usb_test_quirk(uaa, UQ_MSC_NO_PREVENT_ALLOW))
quirks |= NO_PREVENT_ALLOW;
if (usb_test_quirk(uaa, UQ_MSC_NO_SYNC_CACHE))
quirks |= NO_SYNCHRONIZE_CACHE;
if (usb_test_quirk(uaa, UQ_MSC_SHUTTLE_INIT))
quirks |= SHUTTLE_INIT;
if (usb_test_quirk(uaa, UQ_MSC_ALT_IFACE_1))
quirks |= ALT_IFACE_1;
if (usb_test_quirk(uaa, UQ_MSC_FLOPPY_SPEED))
quirks |= FLOPPY_SPEED;
if (usb_test_quirk(uaa, UQ_MSC_IGNORE_RESIDUE))
quirks |= IGNORE_RESIDUE;
if (usb_test_quirk(uaa, UQ_MSC_WRONG_CSWSIG))
quirks |= WRONG_CSWSIG;
if (usb_test_quirk(uaa, UQ_MSC_RBC_PAD_TO_12))
quirks |= RBC_PAD_TO_12;
if (usb_test_quirk(uaa, UQ_MSC_READ_CAP_OFFBY1))
quirks |= READ_CAPACITY_OFFBY1;
if (usb_test_quirk(uaa, UQ_MSC_FORCE_SHORT_INQ))
quirks |= FORCE_SHORT_INQUIRY;
done:
ret.quirks = quirks;
ret.proto = proto;
return (ret);
}
static int
umass_probe(device_t dev)
{
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct umass_probe_proto temp;
if (uaa->usb_mode != USB_MODE_HOST) {
return (ENXIO);
}
temp = umass_probe_proto(dev, uaa);
return (temp.error);
}
static int
umass_attach(device_t dev)
{
struct umass_softc *sc = device_get_softc(dev);
struct usb_attach_arg *uaa = device_get_ivars(dev);
struct umass_probe_proto temp = umass_probe_proto(dev, uaa);
struct usb_interface_descriptor *id;
int err;
/*
* NOTE: the softc struct is cleared in device_set_driver.
* We can safely call umass_detach without specifically
* initializing the struct.
*/
sc->sc_dev = dev;
sc->sc_udev = uaa->device;
sc->sc_proto = temp.proto;
sc->sc_quirks = temp.quirks;
sc->sc_unit = device_get_unit(dev);
snprintf(sc->sc_name, sizeof(sc->sc_name),
"%s", device_get_nameunit(dev));
device_set_usb_desc(dev);
mtx_init(&sc->sc_mtx, device_get_nameunit(dev),
NULL, MTX_DEF | MTX_RECURSE);
/* get interface index */
id = usbd_get_interface_descriptor(uaa->iface);
if (id == NULL) {
device_printf(dev, "failed to get "
"interface number\n");
goto detach;
}
sc->sc_iface_no = id->bInterfaceNumber;
#ifdef USB_DEBUG
device_printf(dev, " ");
switch (sc->sc_proto & UMASS_PROTO_COMMAND) {
case UMASS_PROTO_SCSI:
printf("SCSI");
break;
case UMASS_PROTO_ATAPI:
printf("8070i (ATAPI)");
break;
case UMASS_PROTO_UFI:
printf("UFI");
break;
case UMASS_PROTO_RBC:
printf("RBC");
break;
default:
printf("(unknown 0x%02x)",
sc->sc_proto & UMASS_PROTO_COMMAND);
break;
}
printf(" over ");
switch (sc->sc_proto & UMASS_PROTO_WIRE) {
case UMASS_PROTO_BBB:
printf("Bulk-Only");
break;
case UMASS_PROTO_CBI: /* uses Comand/Bulk pipes */
printf("CBI");
break;
case UMASS_PROTO_CBI_I: /* uses Comand/Bulk/Interrupt pipes */
printf("CBI with CCI");
break;
default:
printf("(unknown 0x%02x)",
sc->sc_proto & UMASS_PROTO_WIRE);
}
printf("; quirks = 0x%04x\n", sc->sc_quirks);
#endif
if (sc->sc_quirks & ALT_IFACE_1) {
err = usbd_set_alt_interface_index
(uaa->device, uaa->info.bIfaceIndex, 1);
if (err) {
DPRINTF(sc, UDMASS_USB, "could not switch to "
"Alt Interface 1\n");
goto detach;
}
}
/* allocate all required USB transfers */
if (sc->sc_proto & UMASS_PROTO_BBB) {
err = usbd_transfer_setup(uaa->device,
&uaa->info.bIfaceIndex, sc->sc_xfer, umass_bbb_config,
UMASS_T_BBB_MAX, sc, &sc->sc_mtx);
/* skip reset first time */
sc->sc_last_xfer_index = UMASS_T_BBB_COMMAND;
} else if (sc->sc_proto & (UMASS_PROTO_CBI | UMASS_PROTO_CBI_I)) {
err = usbd_transfer_setup(uaa->device,
&uaa->info.bIfaceIndex, sc->sc_xfer, umass_cbi_config,
UMASS_T_CBI_MAX, sc, &sc->sc_mtx);
/* skip reset first time */
sc->sc_last_xfer_index = UMASS_T_CBI_COMMAND;
} else {
err = USB_ERR_INVAL;
}
if (err) {
device_printf(dev, "could not setup required "
"transfers, %s\n", usbd_errstr(err));
goto detach;
}
#ifdef USB_DEBUG
if (umass_throttle > 0) {
uint8_t x;
int iv;
iv = umass_throttle;
if (iv < 1)
iv = 1;
else if (iv > 8000)
iv = 8000;
for (x = 0; x != UMASS_T_MAX; x++) {
if (sc->sc_xfer[x] != NULL)
usbd_xfer_set_interval(sc->sc_xfer[x], iv);
}
}
#endif
sc->sc_transform =
(sc->sc_proto & UMASS_PROTO_SCSI) ? &umass_scsi_transform :
(sc->sc_proto & UMASS_PROTO_UFI) ? &umass_ufi_transform :
(sc->sc_proto & UMASS_PROTO_ATAPI) ? &umass_atapi_transform :
(sc->sc_proto & UMASS_PROTO_RBC) ? &umass_rbc_transform :
&umass_no_transform;
/* from here onwards the device can be used. */
if (sc->sc_quirks & SHUTTLE_INIT) {
umass_init_shuttle(sc);
}
/* get the maximum LUN supported by the device */
if (((sc->sc_proto & UMASS_PROTO_WIRE) == UMASS_PROTO_BBB) &&
!(sc->sc_quirks & NO_GETMAXLUN))
sc->sc_maxlun = umass_bbb_get_max_lun(sc);
else
sc->sc_maxlun = 0;
/* Prepare the SCSI command block */
sc->cam_scsi_sense.opcode = REQUEST_SENSE;
sc->cam_scsi_test_unit_ready.opcode = TEST_UNIT_READY;
/* register the SIM */
err = umass_cam_attach_sim(sc);
if (err) {
goto detach;
}
/* scan the SIM */
umass_cam_attach(sc);
DPRINTF(sc, UDMASS_GEN, "Attach finished\n");
return (0); /* success */
detach:
umass_detach(dev);
return (ENXIO); /* failure */
}
static int
umass_detach(device_t dev)
{
struct umass_softc *sc = device_get_softc(dev);
DPRINTF(sc, UDMASS_USB, "\n");
/* teardown our statemachine */
usbd_transfer_unsetup(sc->sc_xfer, UMASS_T_MAX);
mtx_lock(&sc->sc_mtx);
/* cancel any leftover CCB's */
umass_cancel_ccb(sc);
umass_cam_detach_sim(sc);
mtx_unlock(&sc->sc_mtx);
mtx_destroy(&sc->sc_mtx);
return (0); /* success */
}
static void
umass_init_shuttle(struct umass_softc *sc)
{
struct usb_device_request req;
usb_error_t err;
uint8_t status[2] = {0, 0};
/*
* The Linux driver does this, but no one can tell us what the
* command does.
*/
req.bmRequestType = UT_READ_VENDOR_DEVICE;
req.bRequest = 1; /* XXX unknown command */
USETW(req.wValue, 0);
req.wIndex[0] = sc->sc_iface_no;
req.wIndex[1] = 0;
USETW(req.wLength, sizeof(status));
err = usbd_do_request(sc->sc_udev, NULL, &req, &status);
DPRINTF(sc, UDMASS_GEN, "Shuttle init returned 0x%02x%02x\n",
status[0], status[1]);
}
/*
* Generic functions to handle transfers
*/
static void
umass_transfer_start(struct umass_softc *sc, uint8_t xfer_index)
{
DPRINTF(sc, UDMASS_GEN, "transfer index = "
"%d\n", xfer_index);
if (sc->sc_xfer[xfer_index]) {
sc->sc_last_xfer_index = xfer_index;
usbd_transfer_start(sc->sc_xfer[xfer_index]);
} else {
umass_cancel_ccb(sc);
}
}
static void
umass_reset(struct umass_softc *sc)
{
DPRINTF(sc, UDMASS_GEN, "resetting device\n");
/*
* stop the last transfer, if not already stopped:
*/
usbd_transfer_stop(sc->sc_xfer[sc->sc_last_xfer_index]);
umass_transfer_start(sc, 0);
}
static void
umass_cancel_ccb(struct umass_softc *sc)
{
union ccb *ccb;
mtx_assert(&sc->sc_mtx, MA_OWNED);
ccb = sc->sc_transfer.ccb;
sc->sc_transfer.ccb = NULL;
sc->sc_last_xfer_index = 0;
if (ccb) {
(sc->sc_transfer.callback)
(sc, ccb, (sc->sc_transfer.data_len -
sc->sc_transfer.actlen), STATUS_WIRE_FAILED);
}
}
static void
umass_tr_error(struct usb_xfer *xfer, usb_error_t error)
{
struct umass_softc *sc = usbd_xfer_softc(xfer);
if (error != USB_ERR_CANCELLED) {
DPRINTF(sc, UDMASS_GEN, "transfer error, %s -> "
"reset\n", usbd_errstr(error));
}
umass_cancel_ccb(sc);
}
/*
* BBB protocol specific functions
*/
static void
umass_t_bbb_reset1_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct umass_softc *sc = usbd_xfer_softc(xfer);
struct usb_device_request req;
struct usb_page_cache *pc;
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
umass_transfer_start(sc, UMASS_T_BBB_RESET2);
return;
case USB_ST_SETUP:
/*
* 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, using 3 transfers:
* UMASS_T_BBB_RESET1
* UMASS_T_BBB_RESET2
* UMASS_T_BBB_RESET3
*/
DPRINTF(sc, UDMASS_BBB, "BBB reset!\n");
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UR_BBB_RESET; /* bulk only reset */
USETW(req.wValue, 0);
req.wIndex[0] = sc->sc_iface_no;
req.wIndex[1] = 0;
USETW(req.wLength, 0);
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_in(pc, 0, &req, sizeof(req));
usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
usbd_xfer_set_frames(xfer, 1);
usbd_transfer_submit(xfer);
return;
default: /* Error */
umass_tr_error(xfer, error);
return;
}
}
static void
umass_t_bbb_reset2_callback(struct usb_xfer *xfer, usb_error_t error)
{
umass_t_bbb_data_clear_stall_callback(xfer, UMASS_T_BBB_RESET3,
UMASS_T_BBB_DATA_READ, error);
}
static void
umass_t_bbb_reset3_callback(struct usb_xfer *xfer, usb_error_t error)
{
umass_t_bbb_data_clear_stall_callback(xfer, UMASS_T_BBB_COMMAND,
UMASS_T_BBB_DATA_WRITE, error);
}
static void
umass_t_bbb_data_clear_stall_callback(struct usb_xfer *xfer,
uint8_t next_xfer, uint8_t stall_xfer, usb_error_t error)
{
struct umass_softc *sc = usbd_xfer_softc(xfer);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
tr_transferred:
umass_transfer_start(sc, next_xfer);
return;
case USB_ST_SETUP:
if (usbd_clear_stall_callback(xfer, sc->sc_xfer[stall_xfer])) {
goto tr_transferred;
}
return;
default: /* Error */
umass_tr_error(xfer, error);
return;
}
}
static void
umass_t_bbb_command_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct umass_softc *sc = usbd_xfer_softc(xfer);
union ccb *ccb = sc->sc_transfer.ccb;
struct usb_page_cache *pc;
uint32_t tag;
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
umass_transfer_start
(sc, ((sc->sc_transfer.dir == DIR_IN) ? UMASS_T_BBB_DATA_READ :
(sc->sc_transfer.dir == DIR_OUT) ? UMASS_T_BBB_DATA_WRITE :
UMASS_T_BBB_STATUS));
return;
case USB_ST_SETUP:
sc->sc_status_try = 0;
if (ccb) {
/*
* the initial value is not important,
* as long as the values are unique:
*/
tag = UGETDW(sc->cbw.dCBWTag) + 1;
USETDW(sc->cbw.dCBWSignature, CBWSIGNATURE);
USETDW(sc->cbw.dCBWTag, tag);
/*
* dCBWDataTransferLength:
* 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.
*/
USETDW(sc->cbw.dCBWDataTransferLength, sc->sc_transfer.data_len);
/*
* dCBWFlags:
* 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
*/
sc->cbw.bCBWFlags = ((sc->sc_transfer.dir == DIR_IN) ?
CBWFLAGS_IN : CBWFLAGS_OUT);
sc->cbw.bCBWLUN = sc->sc_transfer.lun;
if (sc->sc_transfer.cmd_len > sizeof(sc->cbw.CBWCDB)) {
sc->sc_transfer.cmd_len = sizeof(sc->cbw.CBWCDB);
DPRINTF(sc, UDMASS_BBB, "Truncating long command!\n");
}
sc->cbw.bCDBLength = sc->sc_transfer.cmd_len;
/* copy SCSI command data */
memcpy(sc->cbw.CBWCDB, sc->sc_transfer.cmd_data,
sc->sc_transfer.cmd_len);
/* clear remaining command area */
memset(sc->cbw.CBWCDB +
sc->sc_transfer.cmd_len, 0,
sizeof(sc->cbw.CBWCDB) -
sc->sc_transfer.cmd_len);
DIF(UDMASS_BBB, umass_bbb_dump_cbw(sc, &sc->cbw));
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_in(pc, 0, &sc->cbw, sizeof(sc->cbw));
usbd_xfer_set_frame_len(xfer, 0, sizeof(sc->cbw));
usbd_transfer_submit(xfer);
}
return;
default: /* Error */
umass_tr_error(xfer, error);
return;
}
}
static void
umass_t_bbb_data_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct umass_softc *sc = usbd_xfer_softc(xfer);
uint32_t max_bulk = usbd_xfer_max_len(xfer);
int actlen, sumlen;
usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
sc->sc_transfer.data_rem -= actlen;
sc->sc_transfer.data_ptr += actlen;
sc->sc_transfer.actlen += actlen;
if (actlen < sumlen) {
/* short transfer */
sc->sc_transfer.data_rem = 0;
}
case USB_ST_SETUP:
DPRINTF(sc, UDMASS_BBB, "max_bulk=%d, data_rem=%d\n",
max_bulk, sc->sc_transfer.data_rem);
if (sc->sc_transfer.data_rem == 0) {
umass_transfer_start(sc, UMASS_T_BBB_STATUS);
return;
}
if (max_bulk > sc->sc_transfer.data_rem) {
max_bulk = sc->sc_transfer.data_rem;
}
usbd_xfer_set_timeout(xfer, sc->sc_transfer.data_timeout);
usbd_xfer_set_frame_data(xfer, 0, sc->sc_transfer.data_ptr,
max_bulk);
usbd_transfer_submit(xfer);
return;
default: /* Error */
if (error == USB_ERR_CANCELLED) {
umass_tr_error(xfer, error);
} else {
umass_transfer_start(sc, UMASS_T_BBB_DATA_RD_CS);
}
return;
}
}
static void
umass_t_bbb_data_rd_cs_callback(struct usb_xfer *xfer, usb_error_t error)
{
umass_t_bbb_data_clear_stall_callback(xfer, UMASS_T_BBB_STATUS,
UMASS_T_BBB_DATA_READ, error);
}
static void
umass_t_bbb_data_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct umass_softc *sc = usbd_xfer_softc(xfer);
uint32_t max_bulk = usbd_xfer_max_len(xfer);
int actlen, sumlen;
usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
sc->sc_transfer.data_rem -= actlen;
sc->sc_transfer.data_ptr += actlen;
sc->sc_transfer.actlen += actlen;
if (actlen < sumlen) {
/* short transfer */
sc->sc_transfer.data_rem = 0;
}
case USB_ST_SETUP:
DPRINTF(sc, UDMASS_BBB, "max_bulk=%d, data_rem=%d\n",
max_bulk, sc->sc_transfer.data_rem);
if (sc->sc_transfer.data_rem == 0) {
umass_transfer_start(sc, UMASS_T_BBB_STATUS);
return;
}
if (max_bulk > sc->sc_transfer.data_rem) {
max_bulk = sc->sc_transfer.data_rem;
}
usbd_xfer_set_timeout(xfer, sc->sc_transfer.data_timeout);
usbd_xfer_set_frame_data(xfer, 0, sc->sc_transfer.data_ptr,
max_bulk);
usbd_transfer_submit(xfer);
return;
default: /* Error */
if (error == USB_ERR_CANCELLED) {
umass_tr_error(xfer, error);
} else {
umass_transfer_start(sc, UMASS_T_BBB_DATA_WR_CS);
}
return;
}
}
static void
umass_t_bbb_data_wr_cs_callback(struct usb_xfer *xfer, usb_error_t error)
{
umass_t_bbb_data_clear_stall_callback(xfer, UMASS_T_BBB_STATUS,
UMASS_T_BBB_DATA_WRITE, error);
}
static void
umass_t_bbb_status_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct umass_softc *sc = usbd_xfer_softc(xfer);
union ccb *ccb = sc->sc_transfer.ccb;
struct usb_page_cache *pc;
uint32_t residue;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
/*
* Do a full reset if there is something wrong with the CSW:
*/
sc->sc_status_try = 1;
/* Zero missing parts of the CSW: */
if (actlen < (int)sizeof(sc->csw))
memset(&sc->csw, 0, sizeof(sc->csw));
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_out(pc, 0, &sc->csw, actlen);
DIF(UDMASS_BBB, umass_bbb_dump_csw(sc, &sc->csw));
residue = UGETDW(sc->csw.dCSWDataResidue);
if ((!residue) || (sc->sc_quirks & IGNORE_RESIDUE)) {
residue = (sc->sc_transfer.data_len -
sc->sc_transfer.actlen);
}
if (residue > sc->sc_transfer.data_len) {
DPRINTF(sc, UDMASS_BBB, "truncating residue from %d "
"to %d bytes\n", residue, sc->sc_transfer.data_len);
residue = sc->sc_transfer.data_len;
}
/* translate weird command-status signatures: */
if (sc->sc_quirks & WRONG_CSWSIG) {
uint32_t temp = UGETDW(sc->csw.dCSWSignature);
if ((temp == CSWSIGNATURE_OLYMPUS_C1) ||
(temp == CSWSIGNATURE_IMAGINATION_DBX1)) {
USETDW(sc->csw.dCSWSignature, CSWSIGNATURE);
}
}
/* check CSW and handle eventual error */
if (UGETDW(sc->csw.dCSWSignature) != CSWSIGNATURE) {
DPRINTF(sc, UDMASS_BBB, "bad CSW signature 0x%08x != 0x%08x\n",
UGETDW(sc->csw.dCSWSignature), CSWSIGNATURE);
/*
* Invalid CSW: Wrong signature or wrong tag might
* indicate that we lost synchronization. Reset the
* device.
*/
goto tr_error;
} else if (UGETDW(sc->csw.dCSWTag) != UGETDW(sc->cbw.dCBWTag)) {
DPRINTF(sc, UDMASS_BBB, "Invalid CSW: tag 0x%08x should be "
"0x%08x\n", UGETDW(sc->csw.dCSWTag),
UGETDW(sc->cbw.dCBWTag));
goto tr_error;
} else if (sc->csw.bCSWStatus > CSWSTATUS_PHASE) {
DPRINTF(sc, UDMASS_BBB, "Invalid CSW: status %d > %d\n",
sc->csw.bCSWStatus, CSWSTATUS_PHASE);
goto tr_error;
} else if (sc->csw.bCSWStatus == CSWSTATUS_PHASE) {
DPRINTF(sc, UDMASS_BBB, "Phase error, residue = "
"%d\n", residue);
goto tr_error;
} else if (sc->sc_transfer.actlen > sc->sc_transfer.data_len) {
DPRINTF(sc, UDMASS_BBB, "Buffer overrun %d > %d\n",
sc->sc_transfer.actlen, sc->sc_transfer.data_len);
goto tr_error;
} else if (sc->csw.bCSWStatus == CSWSTATUS_FAILED) {
DPRINTF(sc, UDMASS_BBB, "Command failed, residue = "
"%d\n", residue);
sc->sc_transfer.ccb = NULL;
sc->sc_last_xfer_index = UMASS_T_BBB_COMMAND;
(sc->sc_transfer.callback)
(sc, ccb, residue, STATUS_CMD_FAILED);
} else {
sc->sc_transfer.ccb = NULL;
sc->sc_last_xfer_index = UMASS_T_BBB_COMMAND;
(sc->sc_transfer.callback)
(sc, ccb, residue, STATUS_CMD_OK);
}
return;
case USB_ST_SETUP:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
return;
default:
tr_error:
DPRINTF(sc, UDMASS_BBB, "Failed to read CSW: %s, try %d\n",
usbd_errstr(error), sc->sc_status_try);
if ((error == USB_ERR_CANCELLED) ||
(sc->sc_status_try)) {
umass_tr_error(xfer, error);
} else {
sc->sc_status_try = 1;
umass_transfer_start(sc, UMASS_T_BBB_DATA_RD_CS);
}
return;
}
}
static void
umass_command_start(struct umass_softc *sc, uint8_t dir,
void *data_ptr, uint32_t data_len,
uint32_t data_timeout, umass_callback_t *callback,
union ccb *ccb)
{
sc->sc_transfer.lun = ccb->ccb_h.target_lun;
/*
* NOTE: assumes that "sc->sc_transfer.cmd_data" and
* "sc->sc_transfer.cmd_len" has been properly
* initialized.
*/
sc->sc_transfer.dir = data_len ? dir : DIR_NONE;
sc->sc_transfer.data_ptr = data_ptr;
sc->sc_transfer.data_len = data_len;
sc->sc_transfer.data_rem = data_len;
sc->sc_transfer.data_timeout = (data_timeout + UMASS_TIMEOUT);
sc->sc_transfer.actlen = 0;
sc->sc_transfer.callback = callback;
sc->sc_transfer.ccb = ccb;
if (sc->sc_xfer[sc->sc_last_xfer_index]) {
usbd_transfer_start(sc->sc_xfer[sc->sc_last_xfer_index]);
} else {
umass_cancel_ccb(sc);
}
}
static uint8_t
umass_bbb_get_max_lun(struct umass_softc *sc)
{
struct usb_device_request req;
usb_error_t err;
uint8_t buf = 0;
/* 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);
req.wIndex[0] = sc->sc_iface_no;
req.wIndex[1] = 0;
USETW(req.wLength, 1);
err = usbd_do_request(sc->sc_udev, NULL, &req, &buf);
if (err) {
buf = 0;
/* Device doesn't support Get Max Lun request. */
printf("%s: Get Max Lun not supported (%s)\n",
sc->sc_name, usbd_errstr(err));
}
return (buf);
}
/*
* Command/Bulk/Interrupt (CBI) specific functions
*/
static void
umass_cbi_start_status(struct umass_softc *sc)
{
if (sc->sc_xfer[UMASS_T_CBI_STATUS]) {
umass_transfer_start(sc, UMASS_T_CBI_STATUS);
} else {
union ccb *ccb = sc->sc_transfer.ccb;
sc->sc_transfer.ccb = NULL;
sc->sc_last_xfer_index = UMASS_T_CBI_COMMAND;
(sc->sc_transfer.callback)
(sc, ccb, (sc->sc_transfer.data_len -
sc->sc_transfer.actlen), STATUS_CMD_UNKNOWN);
}
}
static void
umass_t_cbi_reset1_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct umass_softc *sc = usbd_xfer_softc(xfer);
struct usb_device_request req;
struct usb_page_cache *pc;
uint8_t buf[UMASS_CBI_DIAGNOSTIC_CMDLEN];
uint8_t i;
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
umass_transfer_start(sc, UMASS_T_CBI_RESET2);
break;
case USB_ST_SETUP:
/*
* 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, using 3 transfers:
* UMASS_T_CBI_RESET1
* UMASS_T_CBI_RESET2
* UMASS_T_CBI_RESET3
* UMASS_T_CBI_RESET4 (only if there is an interrupt endpoint)
*/
DPRINTF(sc, UDMASS_CBI, "CBI reset!\n");
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UR_CBI_ADSC;
USETW(req.wValue, 0);
req.wIndex[0] = sc->sc_iface_no;
req.wIndex[1] = 0;
USETW(req.wLength, UMASS_CBI_DIAGNOSTIC_CMDLEN);
/*
* The 0x1d code is the SEND DIAGNOSTIC command. To
* distinguish between the two, the last 10 bytes of the CBL
* is filled with 0xff (section 2.2 of the CBI
* specification)
*/
buf[0] = 0x1d; /* Command Block Reset */
buf[1] = 0x04;
for (i = 2; i < UMASS_CBI_DIAGNOSTIC_CMDLEN; i++) {
buf[i] = 0xff;
}
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_in(pc, 0, &req, sizeof(req));
pc = usbd_xfer_get_frame(xfer, 1);
usbd_copy_in(pc, 0, buf, sizeof(buf));
usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
usbd_xfer_set_frame_len(xfer, 1, sizeof(buf));
usbd_xfer_set_frames(xfer, 2);
usbd_transfer_submit(xfer);
break;
default: /* Error */
if (error == USB_ERR_CANCELLED)
umass_tr_error(xfer, error);
else
umass_transfer_start(sc, UMASS_T_CBI_RESET2);
break;
}
}
static void
umass_t_cbi_reset2_callback(struct usb_xfer *xfer, usb_error_t error)
{
umass_t_cbi_data_clear_stall_callback(xfer, UMASS_T_CBI_RESET3,
UMASS_T_CBI_DATA_READ, error);
}
static void
umass_t_cbi_reset3_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct umass_softc *sc = usbd_xfer_softc(xfer);
umass_t_cbi_data_clear_stall_callback
(xfer, (sc->sc_xfer[UMASS_T_CBI_RESET4] &&
sc->sc_xfer[UMASS_T_CBI_STATUS]) ?
UMASS_T_CBI_RESET4 : UMASS_T_CBI_COMMAND,
UMASS_T_CBI_DATA_WRITE, error);
}
static void
umass_t_cbi_reset4_callback(struct usb_xfer *xfer, usb_error_t error)
{
umass_t_cbi_data_clear_stall_callback(xfer, UMASS_T_CBI_COMMAND,
UMASS_T_CBI_STATUS, error);
}
static void
umass_t_cbi_data_clear_stall_callback(struct usb_xfer *xfer,
uint8_t next_xfer, uint8_t stall_xfer, usb_error_t error)
{
struct umass_softc *sc = usbd_xfer_softc(xfer);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
tr_transferred:
if (next_xfer == UMASS_T_CBI_STATUS) {
umass_cbi_start_status(sc);
} else {
umass_transfer_start(sc, next_xfer);
}
break;
case USB_ST_SETUP:
if (usbd_clear_stall_callback(xfer, sc->sc_xfer[stall_xfer])) {
goto tr_transferred; /* should not happen */
}
break;
default: /* Error */
umass_tr_error(xfer, error);
break;
}
}
static void
umass_t_cbi_command_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct umass_softc *sc = usbd_xfer_softc(xfer);
union ccb *ccb = sc->sc_transfer.ccb;
struct usb_device_request req;
struct usb_page_cache *pc;
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
if (sc->sc_transfer.dir == DIR_NONE) {
umass_cbi_start_status(sc);
} else {
umass_transfer_start
(sc, (sc->sc_transfer.dir == DIR_IN) ?
UMASS_T_CBI_DATA_READ : UMASS_T_CBI_DATA_WRITE);
}
break;
case USB_ST_SETUP:
if (ccb) {
/*
* do a CBI transfer with cmd_len bytes from
* cmd_data, possibly a data phase of data_len
* bytes from/to the device and finally a status
* read phase.
*/
req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
req.bRequest = UR_CBI_ADSC;
USETW(req.wValue, 0);
req.wIndex[0] = sc->sc_iface_no;
req.wIndex[1] = 0;
req.wLength[0] = sc->sc_transfer.cmd_len;
req.wLength[1] = 0;
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_in(pc, 0, &req, sizeof(req));
pc = usbd_xfer_get_frame(xfer, 1);
usbd_copy_in(pc, 0, sc->sc_transfer.cmd_data,
sc->sc_transfer.cmd_len);
usbd_xfer_set_frame_len(xfer, 0, sizeof(req));
usbd_xfer_set_frame_len(xfer, 1, sc->sc_transfer.cmd_len);
usbd_xfer_set_frames(xfer,
sc->sc_transfer.cmd_len ? 2 : 1);
DIF(UDMASS_CBI,
umass_cbi_dump_cmd(sc,
sc->sc_transfer.cmd_data,
sc->sc_transfer.cmd_len));
usbd_transfer_submit(xfer);
}
break;
default: /* Error */
/*
* STALL on the control pipe can be result of the command error.
* Attempt to clear this STALL same as for bulk pipe also
* results in command completion interrupt, but ASC/ASCQ there
* look like not always valid, so don't bother about it.
*/
if ((error == USB_ERR_STALLED) ||
(sc->sc_transfer.callback == &umass_cam_cb)) {
sc->sc_transfer.ccb = NULL;
(sc->sc_transfer.callback)
(sc, ccb, sc->sc_transfer.data_len,
STATUS_CMD_UNKNOWN);
} else {
umass_tr_error(xfer, error);
/* skip reset */
sc->sc_last_xfer_index = UMASS_T_CBI_COMMAND;
}
break;
}
}
static void
umass_t_cbi_data_read_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct umass_softc *sc = usbd_xfer_softc(xfer);
uint32_t max_bulk = usbd_xfer_max_len(xfer);
int actlen, sumlen;
usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
sc->sc_transfer.data_rem -= actlen;
sc->sc_transfer.data_ptr += actlen;
sc->sc_transfer.actlen += actlen;
if (actlen < sumlen) {
/* short transfer */
sc->sc_transfer.data_rem = 0;
}
case USB_ST_SETUP:
DPRINTF(sc, UDMASS_CBI, "max_bulk=%d, data_rem=%d\n",
max_bulk, sc->sc_transfer.data_rem);
if (sc->sc_transfer.data_rem == 0) {
umass_cbi_start_status(sc);
break;
}
if (max_bulk > sc->sc_transfer.data_rem) {
max_bulk = sc->sc_transfer.data_rem;
}
usbd_xfer_set_timeout(xfer, sc->sc_transfer.data_timeout);
usbd_xfer_set_frame_data(xfer, 0, sc->sc_transfer.data_ptr,
max_bulk);
usbd_transfer_submit(xfer);
break;
default: /* Error */
if ((error == USB_ERR_CANCELLED) ||
(sc->sc_transfer.callback != &umass_cam_cb)) {
umass_tr_error(xfer, error);
} else {
umass_transfer_start(sc, UMASS_T_CBI_DATA_RD_CS);
}
break;
}
}
static void
umass_t_cbi_data_rd_cs_callback(struct usb_xfer *xfer, usb_error_t error)
{
umass_t_cbi_data_clear_stall_callback(xfer, UMASS_T_CBI_STATUS,
UMASS_T_CBI_DATA_READ, error);
}
static void
umass_t_cbi_data_write_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct umass_softc *sc = usbd_xfer_softc(xfer);
uint32_t max_bulk = usbd_xfer_max_len(xfer);
int actlen, sumlen;
usbd_xfer_status(xfer, &actlen, &sumlen, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
sc->sc_transfer.data_rem -= actlen;
sc->sc_transfer.data_ptr += actlen;
sc->sc_transfer.actlen += actlen;
if (actlen < sumlen) {
/* short transfer */
sc->sc_transfer.data_rem = 0;
}
case USB_ST_SETUP:
DPRINTF(sc, UDMASS_CBI, "max_bulk=%d, data_rem=%d\n",
max_bulk, sc->sc_transfer.data_rem);
if (sc->sc_transfer.data_rem == 0) {
umass_cbi_start_status(sc);
break;
}
if (max_bulk > sc->sc_transfer.data_rem) {
max_bulk = sc->sc_transfer.data_rem;
}
usbd_xfer_set_timeout(xfer, sc->sc_transfer.data_timeout);
usbd_xfer_set_frame_data(xfer, 0, sc->sc_transfer.data_ptr,
max_bulk);
usbd_transfer_submit(xfer);
break;
default: /* Error */
if ((error == USB_ERR_CANCELLED) ||
(sc->sc_transfer.callback != &umass_cam_cb)) {
umass_tr_error(xfer, error);
} else {
umass_transfer_start(sc, UMASS_T_CBI_DATA_WR_CS);
}
break;
}
}
static void
umass_t_cbi_data_wr_cs_callback(struct usb_xfer *xfer, usb_error_t error)
{
umass_t_cbi_data_clear_stall_callback(xfer, UMASS_T_CBI_STATUS,
UMASS_T_CBI_DATA_WRITE, error);
}
static void
umass_t_cbi_status_callback(struct usb_xfer *xfer, usb_error_t error)
{
struct umass_softc *sc = usbd_xfer_softc(xfer);
union ccb *ccb = sc->sc_transfer.ccb;
struct usb_page_cache *pc;
uint32_t residue;
uint8_t status;
int actlen;
usbd_xfer_status(xfer, &actlen, NULL, NULL, NULL);
switch (USB_GET_STATE(xfer)) {
case USB_ST_TRANSFERRED:
if (actlen < (int)sizeof(sc->sbl)) {
goto tr_setup;
}
pc = usbd_xfer_get_frame(xfer, 0);
usbd_copy_out(pc, 0, &sc->sbl, sizeof(sc->sbl));
residue = (sc->sc_transfer.data_len -
sc->sc_transfer.actlen);
/* dissect the information in the buffer */
if (sc->sc_proto & UMASS_PROTO_UFI) {
/*
* Section 3.4.3.1.3 specifies that the UFI command
* protocol returns an ASC and ASCQ in the interrupt
* data block.
*/
DPRINTF(sc, UDMASS_CBI, "UFI CCI, ASC = 0x%02x, "
"ASCQ = 0x%02x\n", sc->sbl.ufi.asc,
sc->sbl.ufi.ascq);
status = (((sc->sbl.ufi.asc == 0) &&
(sc->sbl.ufi.ascq == 0)) ?
STATUS_CMD_OK : STATUS_CMD_FAILED);
sc->sc_transfer.ccb = NULL;
sc->sc_last_xfer_index = UMASS_T_CBI_COMMAND;
(sc->sc_transfer.callback)
(sc, ccb, residue, status);
break;
} else {
/* Command Interrupt Data Block */
DPRINTF(sc, UDMASS_CBI, "type=0x%02x, value=0x%02x\n",
sc->sbl.common.type, sc->sbl.common.value);
if (sc->sbl.common.type == IDB_TYPE_CCI) {
status = (sc->sbl.common.value & IDB_VALUE_STATUS_MASK);
status = ((status == IDB_VALUE_PASS) ? STATUS_CMD_OK :
(status == IDB_VALUE_FAIL) ? STATUS_CMD_FAILED :
(status == IDB_VALUE_PERSISTENT) ? STATUS_CMD_FAILED :
STATUS_WIRE_FAILED);
sc->sc_transfer.ccb = NULL;
sc->sc_last_xfer_index = UMASS_T_CBI_COMMAND;
(sc->sc_transfer.callback)
(sc, ccb, residue, status);
break;
}
}
/* fallthrough */
case USB_ST_SETUP:
tr_setup:
usbd_xfer_set_frame_len(xfer, 0, usbd_xfer_max_len(xfer));
usbd_transfer_submit(xfer);
break;
default: /* Error */
DPRINTF(sc, UDMASS_CBI, "Failed to read CSW: %s\n",
usbd_errstr(error));
umass_tr_error(xfer, error);
break;
}
}
/*
* CAM specific functions (used by SCSI, UFI, 8070i (ATAPI))
*/
static int
umass_cam_attach_sim(struct umass_softc *sc)
{
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 limited to one.
*/
devq = cam_simq_alloc(1 /* maximum openings */ );
if (devq == NULL) {
return (ENOMEM);
}
sc->sc_sim = cam_sim_alloc
(&umass_cam_action, &umass_cam_poll,
DEVNAME_SIM,
sc /* priv */ ,
sc->sc_unit /* unit number */ ,
&sc->sc_mtx /* mutex */ ,
1 /* maximum device openings */ ,
0 /* maximum tagged device openings */ ,
devq);
if (sc->sc_sim == NULL) {
cam_simq_free(devq);
return (ENOMEM);
}
mtx_lock(&sc->sc_mtx);
if (xpt_bus_register(sc->sc_sim, sc->sc_dev,
sc->sc_unit) != CAM_SUCCESS) {
mtx_unlock(&sc->sc_mtx);
return (ENOMEM);
}
mtx_unlock(&sc->sc_mtx);
return (0);
}
static void
umass_cam_attach(struct umass_softc *sc)
{
#ifndef USB_DEBUG
if (bootverbose)
#endif
printf("%s:%d:%d: Attached to scbus%d\n",
sc->sc_name, cam_sim_path(sc->sc_sim),
sc->sc_unit, cam_sim_path(sc->sc_sim));
}
/* umass_cam_detach
* detach from the CAM layer
*/
static void
umass_cam_detach_sim(struct umass_softc *sc)
{
if (sc->sc_sim != NULL) {
if (xpt_bus_deregister(cam_sim_path(sc->sc_sim))) {
/* accessing the softc is not possible after this */
sc->sc_sim->softc = NULL;
cam_sim_free(sc->sc_sim, /* free_devq */ TRUE);
} else {
panic("%s: CAM layer is busy\n",
sc->sc_name);
}
sc->sc_sim = NULL;
}
}
/* 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 = (struct umass_softc *)sim->softc;
if (sc == NULL) {
ccb->ccb_h.status = CAM_SEL_TIMEOUT;
xpt_done(ccb);
return;
}
/* Perform the requested action */
switch (ccb->ccb_h.func_code) {
case XPT_SCSI_IO:
{
uint8_t *cmd;
uint8_t dir;
if (ccb->csio.ccb_h.flags & CAM_CDB_POINTER) {
cmd = (uint8_t *)(ccb->csio.cdb_io.cdb_ptr);
} else {
cmd = (uint8_t *)(ccb->csio.cdb_io.cdb_bytes);
}
DPRINTF(sc, UDMASS_SCSI, "%d:%d:%jx:XPT_SCSI_IO: "
"cmd: 0x%02x, flags: 0x%02x, "
"%db cmd/%db data/%db sense\n",
cam_sim_path(sc->sc_sim), ccb->ccb_h.target_id,
(uintmax_t)ccb->ccb_h.target_lun, cmd[0],
ccb->ccb_h.flags & CAM_DIR_MASK, ccb->csio.cdb_len,
ccb->csio.dxfer_len, ccb->csio.sense_len);
if (sc->sc_transfer.ccb) {
DPRINTF(sc, UDMASS_SCSI, "%d:%d:%jx:XPT_SCSI_IO: "
"I/O in progress, deferring\n",
cam_sim_path(sc->sc_sim), ccb->ccb_h.target_id,
(uintmax_t)ccb->ccb_h.target_lun);
ccb->ccb_h.status = CAM_SCSI_BUSY;
xpt_done(ccb);
goto done;
}
switch (ccb->ccb_h.flags & CAM_DIR_MASK) {
case CAM_DIR_IN:
dir = DIR_IN;
break;
case CAM_DIR_OUT:
dir = DIR_OUT;
DIF(UDMASS_SCSI,
umass_dump_buffer(sc, ccb->csio.data_ptr,
ccb->csio.dxfer_len, 48));
break;
default:
dir = DIR_NONE;
}
ccb->ccb_h.status = CAM_REQ_INPROG | CAM_SIM_QUEUED;
/*
* sc->sc_transform will convert the command to the
* command format needed by the specific command set
* and return the converted command in
* "sc->sc_transfer.cmd_data"
*/
if (umass_std_transform(sc, ccb, cmd, ccb->csio.cdb_len)) {
if (sc->sc_transfer.cmd_data[0] == INQUIRY) {
const char *pserial;
pserial = usb_get_serial(sc->sc_udev);
/*
* Umass devices don't generally report their serial numbers
* in the usual SCSI way. Emulate it here.
*/
if ((sc->sc_transfer.cmd_data[1] & SI_EVPD) &&
(sc->sc_transfer.cmd_data[2] == SVPD_UNIT_SERIAL_NUMBER) &&
(pserial[0] != '\0')) {
struct scsi_vpd_unit_serial_number *vpd_serial;
vpd_serial = (struct scsi_vpd_unit_serial_number *)ccb->csio.data_ptr;
vpd_serial->length = strlen(pserial);
if (vpd_serial->length > sizeof(vpd_serial->serial_num))
vpd_serial->length = sizeof(vpd_serial->serial_num);
memcpy(vpd_serial->serial_num, pserial, vpd_serial->length);
ccb->csio.scsi_status = SCSI_STATUS_OK;
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
goto done;
}
/*
* Handle EVPD inquiry for broken devices first
* NO_INQUIRY also implies NO_INQUIRY_EVPD
*/
if ((sc->sc_quirks & (NO_INQUIRY_EVPD | NO_INQUIRY)) &&
(sc->sc_transfer.cmd_data[1] & SI_EVPD)) {
scsi_set_sense_data(&ccb->csio.sense_data,
/*sense_format*/ SSD_TYPE_NONE,
/*current_error*/ 1,
/*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
/*asc*/ 0x24,
/*ascq*/ 0x00,
/*extra args*/ SSD_ELEM_NONE);
ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
ccb->ccb_h.status =
CAM_SCSI_STATUS_ERROR |
CAM_AUTOSNS_VALID |
CAM_DEV_QFRZN;
xpt_freeze_devq(ccb->ccb_h.path, 1);
xpt_done(ccb);
goto done;
}
/*
* Return fake inquiry data for
* broken devices
*/
if (sc->sc_quirks & NO_INQUIRY) {
memcpy(ccb->csio.data_ptr, &fake_inq_data,
sizeof(fake_inq_data));
ccb->csio.scsi_status = SCSI_STATUS_OK;
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
goto done;
}
if (sc->sc_quirks & FORCE_SHORT_INQUIRY) {
ccb->csio.dxfer_len = SHORT_INQUIRY_LENGTH;
}
} else if (sc->sc_transfer.cmd_data[0] == PREVENT_ALLOW) {
if (sc->sc_quirks & NO_PREVENT_ALLOW) {
ccb->csio.scsi_status = SCSI_STATUS_OK;
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
goto done;
}
} else if (sc->sc_transfer.cmd_data[0] == SYNCHRONIZE_CACHE) {
if (sc->sc_quirks & NO_SYNCHRONIZE_CACHE) {
ccb->csio.scsi_status = SCSI_STATUS_OK;
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
goto done;
}
}
umass_command_start(sc, dir, ccb->csio.data_ptr,
ccb->csio.dxfer_len,
ccb->ccb_h.timeout,
&umass_cam_cb, ccb);
}
break;
}
case XPT_PATH_INQ:
{
struct ccb_pathinq *cpi = &ccb->cpi;
DPRINTF(sc, UDMASS_SCSI, "%d:%d:%jx:XPT_PATH_INQ:.\n",
sc ? cam_sim_path(sc->sc_sim) : -1, ccb->ccb_h.target_id,
(uintmax_t)ccb->ccb_h.target_lun);
/* host specific information */
cpi->version_num = 1;
cpi->hba_inquiry = 0;
cpi->target_sprt = 0;
cpi->hba_misc = PIM_NO_6_BYTE;
cpi->hba_eng_cnt = 0;
cpi->max_target = UMASS_SCSIID_MAX; /* one target */
cpi->initiator_id = UMASS_SCSIID_HOST;
strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
strlcpy(cpi->hba_vid, "USB SCSI", HBA_IDLEN);
strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
cpi->unit_number = cam_sim_unit(sim);
cpi->bus_id = sc->sc_unit;
cpi->protocol = PROTO_SCSI;
cpi->protocol_version = SCSI_REV_2;
cpi->transport = XPORT_USB;
cpi->transport_version = 0;
if (sc == NULL) {
cpi->base_transfer_speed = 0;
cpi->max_lun = 0;
} else {
if (sc->sc_quirks & FLOPPY_SPEED) {
cpi->base_transfer_speed =
UMASS_FLOPPY_TRANSFER_SPEED;
} else {
switch (usbd_get_speed(sc->sc_udev)) {
case USB_SPEED_SUPER:
cpi->base_transfer_speed =
UMASS_SUPER_TRANSFER_SPEED;
cpi->maxio = MAXPHYS;
break;
case USB_SPEED_HIGH:
cpi->base_transfer_speed =
UMASS_HIGH_TRANSFER_SPEED;
break;
default:
cpi->base_transfer_speed =
UMASS_FULL_TRANSFER_SPEED;
break;
}
}
cpi->max_lun = sc->sc_maxlun;
}
cpi->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
case XPT_RESET_DEV:
{
DPRINTF(sc, UDMASS_SCSI, "%d:%d:%jx:XPT_RESET_DEV:.\n",
cam_sim_path(sc->sc_sim), ccb->ccb_h.target_id,
(uintmax_t)ccb->ccb_h.target_lun);
umass_reset(sc);
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
case XPT_GET_TRAN_SETTINGS:
{
struct ccb_trans_settings *cts = &ccb->cts;
DPRINTF(sc, UDMASS_SCSI, "%d:%d:%jx:XPT_GET_TRAN_SETTINGS:.\n",
cam_sim_path(sc->sc_sim), ccb->ccb_h.target_id,
(uintmax_t)ccb->ccb_h.target_lun);
cts->protocol = PROTO_SCSI;
cts->protocol_version = SCSI_REV_2;
cts->transport = XPORT_USB;
cts->transport_version = 0;
cts->xport_specific.valid = 0;
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
case XPT_SET_TRAN_SETTINGS:
{
DPRINTF(sc, UDMASS_SCSI, "%d:%d:%jx:XPT_SET_TRAN_SETTINGS:.\n",
cam_sim_path(sc->sc_sim), ccb->ccb_h.target_id,
(uintmax_t)ccb->ccb_h.target_lun);
ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
xpt_done(ccb);
break;
}
case XPT_CALC_GEOMETRY:
{
cam_calc_geometry(&ccb->ccg, /* extended */ 1);
xpt_done(ccb);
break;
}
case XPT_NOOP:
{
DPRINTF(sc, UDMASS_SCSI, "%d:%d:%jx:XPT_NOOP:.\n",
sc ? cam_sim_path(sc->sc_sim) : -1, ccb->ccb_h.target_id,
(uintmax_t)ccb->ccb_h.target_lun);
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
default:
DPRINTF(sc, UDMASS_SCSI, "%d:%d:%jx:func_code 0x%04x: "
"Not implemented\n",
sc ? cam_sim_path(sc->sc_sim) : -1, ccb->ccb_h.target_id,
(uintmax_t)ccb->ccb_h.target_lun, ccb->ccb_h.func_code);
ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
xpt_done(ccb);
break;
}
done:
return;
}
static void
umass_cam_poll(struct cam_sim *sim)
{
struct umass_softc *sc = (struct umass_softc *)sim->softc;
if (sc == NULL)
return;
DPRINTF(sc, UDMASS_SCSI, "CAM poll\n");
usbd_transfer_poll(sc->sc_xfer, UMASS_T_MAX);
}
/* umass_cam_cb
* finalise a completed CAM command
*/
static void
umass_cam_cb(struct umass_softc *sc, union ccb *ccb, uint32_t residue,
uint8_t status)
{
ccb->csio.resid = residue;
switch (status) {
case STATUS_CMD_OK:
ccb->ccb_h.status = CAM_REQ_CMP;
if ((sc->sc_quirks & READ_CAPACITY_OFFBY1) &&
(ccb->ccb_h.func_code == XPT_SCSI_IO) &&
(ccb->csio.cdb_io.cdb_bytes[0] == READ_CAPACITY)) {
struct scsi_read_capacity_data *rcap;
uint32_t maxsector;
rcap = (void *)(ccb->csio.data_ptr);
maxsector = scsi_4btoul(rcap->addr) - 1;
scsi_ulto4b(maxsector, rcap->addr);
}
/*
* We have to add SVPD_UNIT_SERIAL_NUMBER to the list
* of pages supported by the device - otherwise, CAM
* will never ask us for the serial number if the
* device cannot handle that by itself.
*/
if (ccb->ccb_h.func_code == XPT_SCSI_IO &&
sc->sc_transfer.cmd_data[0] == INQUIRY &&
(sc->sc_transfer.cmd_data[1] & SI_EVPD) &&
sc->sc_transfer.cmd_data[2] == SVPD_SUPPORTED_PAGE_LIST &&
(usb_get_serial(sc->sc_udev)[0] != '\0')) {
struct ccb_scsiio *csio;
struct scsi_vpd_supported_page_list *page_list;
csio = &ccb->csio;
page_list = (struct scsi_vpd_supported_page_list *)csio->data_ptr;
if (page_list->length + 1 < SVPD_SUPPORTED_PAGES_SIZE) {
page_list->list[page_list->length] = SVPD_UNIT_SERIAL_NUMBER;
page_list->length++;
}
}
xpt_done(ccb);
break;
case STATUS_CMD_UNKNOWN:
case STATUS_CMD_FAILED:
/* fetch sense data */
/* the rest of the command was filled in at attach */
sc->cam_scsi_sense.length = ccb->csio.sense_len;
DPRINTF(sc, UDMASS_SCSI, "Fetching %d bytes of "
"sense data\n", ccb->csio.sense_len);
if (umass_std_transform(sc, ccb, &sc->cam_scsi_sense.opcode,
sizeof(sc->cam_scsi_sense))) {
if ((sc->sc_quirks & FORCE_SHORT_INQUIRY) &&
(sc->sc_transfer.cmd_data[0] == INQUIRY)) {
ccb->csio.sense_len = SHORT_INQUIRY_LENGTH;
}
umass_command_start(sc, DIR_IN, &ccb->csio.sense_data.error_code,
ccb->csio.sense_len, ccb->ccb_h.timeout,
&umass_cam_sense_cb, ccb);
}
break;
default:
/*
* The wire protocol failed and will hopefully have
* recovered. We return an error to CAM and let CAM
* retry the command if necessary.
*/
xpt_freeze_devq(ccb->ccb_h.path, 1);
ccb->ccb_h.status = CAM_REQ_CMP_ERR | CAM_DEV_QFRZN;
xpt_done(ccb);
break;
}
}
/*
* Finalise a completed autosense operation
*/
static void
umass_cam_sense_cb(struct umass_softc *sc, union ccb *ccb, uint32_t residue,
uint8_t status)
{
uint8_t *cmd;
switch (status) {
case STATUS_CMD_OK:
case STATUS_CMD_UNKNOWN:
case STATUS_CMD_FAILED: {
int key, sense_len;
ccb->csio.sense_resid = residue;
sense_len = ccb->csio.sense_len - ccb->csio.sense_resid;
key = scsi_get_sense_key(&ccb->csio.sense_data, sense_len,
/*show_errors*/ 1);
if (ccb->csio.ccb_h.flags & CAM_CDB_POINTER) {
cmd = (uint8_t *)(ccb->csio.cdb_io.cdb_ptr);
} else {
cmd = (uint8_t *)(ccb->csio.cdb_io.cdb_bytes);
}
/*
* Getting sense data always succeeds (apart from wire
* failures):
*/
if ((sc->sc_quirks & RS_NO_CLEAR_UA) &&
(cmd[0] == INQUIRY) &&
(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 (key == SSD_KEY_NO_SENSE) {
/*
* No problem after all (in the case of CBI without
* CCI)
*/
ccb->ccb_h.status = CAM_REQ_CMP;
} else if ((sc->sc_quirks & RS_NO_CLEAR_UA) &&
(cmd[0] == READ_CAPACITY) &&
(key == SSD_KEY_UNIT_ATTENTION)) {
/*
* Some devices do not clear the unit attention error
* on request sense. We insert a test unit ready
* command to make sure we clear the unit attention
* condition, then allow the retry to proceed as
* usual.
*/
xpt_freeze_devq(ccb->ccb_h.path, 1);
ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
| CAM_AUTOSNS_VALID | CAM_DEV_QFRZN;
ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
#if 0
DELAY(300000);
#endif
DPRINTF(sc, UDMASS_SCSI, "Doing a sneaky"
"TEST_UNIT_READY\n");
/* the rest of the command was filled in at attach */
if ((sc->sc_transform)(sc,
&sc->cam_scsi_test_unit_ready.opcode,
sizeof(sc->cam_scsi_test_unit_ready)) == 1) {
umass_command_start(sc, DIR_NONE, NULL, 0,
ccb->ccb_h.timeout,
&umass_cam_quirk_cb, ccb);
break;
}
} else {
xpt_freeze_devq(ccb->ccb_h.path, 1);
if (key >= 0) {
ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR
| CAM_AUTOSNS_VALID | CAM_DEV_QFRZN;
ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
} else
ccb->ccb_h.status = CAM_AUTOSENSE_FAIL
| CAM_DEV_QFRZN;
}
xpt_done(ccb);
break;
}
default:
DPRINTF(sc, UDMASS_SCSI, "Autosense failed, "
"status %d\n", status);
xpt_freeze_devq(ccb->ccb_h.path, 1);
ccb->ccb_h.status = CAM_AUTOSENSE_FAIL | CAM_DEV_QFRZN;
xpt_done(ccb);
}
}
/*
* This completion code just handles the fact that we sent a test-unit-ready
* after having previously failed a READ CAPACITY with CHECK_COND. The CCB
* status for CAM is already set earlier.
*/
static void
umass_cam_quirk_cb(struct umass_softc *sc, union ccb *ccb, uint32_t residue,
uint8_t status)
{
DPRINTF(sc, UDMASS_SCSI, "Test unit ready "
"returned status %d\n", status);
xpt_done(ccb);
}
/*
* SCSI specific functions
*/
static uint8_t
umass_scsi_transform(struct umass_softc *sc, uint8_t *cmd_ptr,
uint8_t cmd_len)
{
if ((cmd_len == 0) ||
(cmd_len > sizeof(sc->sc_transfer.cmd_data))) {
DPRINTF(sc, UDMASS_SCSI, "Invalid command "
"length: %d bytes\n", cmd_len);
return (0); /* failure */
}
sc->sc_transfer.cmd_len = cmd_len;
switch (cmd_ptr[0]) {
case TEST_UNIT_READY:
if (sc->sc_quirks & NO_TEST_UNIT_READY) {
DPRINTF(sc, UDMASS_SCSI, "Converted TEST_UNIT_READY "
"to START_UNIT\n");
memset(sc->sc_transfer.cmd_data, 0, cmd_len);
sc->sc_transfer.cmd_data[0] = START_STOP_UNIT;
sc->sc_transfer.cmd_data[4] = SSS_START;
return (1);
}
break;
case INQUIRY:
/*
* some drives wedge when asked for full inquiry
* information.
*/
if (sc->sc_quirks & FORCE_SHORT_INQUIRY) {
memcpy(sc->sc_transfer.cmd_data, cmd_ptr, cmd_len);
sc->sc_transfer.cmd_data[4] = SHORT_INQUIRY_LENGTH;
return (1);
}
break;
}
memcpy(sc->sc_transfer.cmd_data, cmd_ptr, cmd_len);
return (1);
}
static uint8_t
umass_rbc_transform(struct umass_softc *sc, uint8_t *cmd_ptr, uint8_t cmd_len)
{
if ((cmd_len == 0) ||
(cmd_len > sizeof(sc->sc_transfer.cmd_data))) {
DPRINTF(sc, UDMASS_SCSI, "Invalid command "
"length: %d bytes\n", cmd_len);
return (0); /* failure */
}
switch (cmd_ptr[0]) {
/* these commands are defined in RBC: */
case READ_10:
case READ_CAPACITY:
case START_STOP_UNIT:
case SYNCHRONIZE_CACHE:
case WRITE_10:
case VERIFY_10:
case INQUIRY:
case MODE_SELECT_10:
case MODE_SENSE_10:
case TEST_UNIT_READY:
case WRITE_BUFFER:
/*
* The following commands are not listed in my copy of the
* RBC specs. CAM however seems to want those, and at least
* the Sony DSC device appears to support those as well
*/
case REQUEST_SENSE:
case PREVENT_ALLOW:
memcpy(sc->sc_transfer.cmd_data, cmd_ptr, cmd_len);
if ((sc->sc_quirks & RBC_PAD_TO_12) && (cmd_len < 12)) {
memset(sc->sc_transfer.cmd_data + cmd_len,
0, 12 - cmd_len);
cmd_len = 12;
}
sc->sc_transfer.cmd_len = cmd_len;
return (1); /* sucess */
/* All other commands are not legal in RBC */
default:
DPRINTF(sc, UDMASS_SCSI, "Unsupported RBC "
"command 0x%02x\n", cmd_ptr[0]);
return (0); /* failure */
}
}
static uint8_t
umass_ufi_transform(struct umass_softc *sc, uint8_t *cmd_ptr,
uint8_t cmd_len)
{
if ((cmd_len == 0) ||
(cmd_len > sizeof(sc->sc_transfer.cmd_data))) {
DPRINTF(sc, UDMASS_SCSI, "Invalid command "
"length: %d bytes\n", cmd_len);
return (0); /* failure */
}
/* An UFI command is always 12 bytes in length */
sc->sc_transfer.cmd_len = UFI_COMMAND_LENGTH;
/* Zero the command data */
memset(sc->sc_transfer.cmd_data, 0, UFI_COMMAND_LENGTH);
switch (cmd_ptr[0]) {
/*
* Commands of which the format has been verified. They
* should work. Copy the command into the (zeroed out)
* destination buffer.
*/
case TEST_UNIT_READY:
if (sc->sc_quirks & NO_TEST_UNIT_READY) {
/*
* Some devices do not support this command. Start
* Stop Unit should give the same results
*/
DPRINTF(sc, UDMASS_UFI, "Converted TEST_UNIT_READY "
"to START_UNIT\n");
sc->sc_transfer.cmd_data[0] = START_STOP_UNIT;
sc->sc_transfer.cmd_data[4] = SSS_START;
return (1);
}
break;
case REZERO_UNIT:
case REQUEST_SENSE:
case FORMAT_UNIT:
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 WRITE_AND_VERIFY:
case VERIFY:
case MODE_SELECT_10:
case MODE_SENSE_10:
case READ_12:
case WRITE_12:
case READ_FORMAT_CAPACITIES:
break;
/*
* SYNCHRONIZE_CACHE isn't supported by UFI, nor should it be
* required for UFI devices, so it is appropriate to fake
* success.
*/
case SYNCHRONIZE_CACHE:
return (2);
default:
DPRINTF(sc, UDMASS_SCSI, "Unsupported UFI "
"command 0x%02x\n", cmd_ptr[0]);
return (0); /* failure */
}
memcpy(sc->sc_transfer.cmd_data, cmd_ptr, cmd_len);
return (1); /* success */
}
/*
* 8070i (ATAPI) specific functions
*/
static uint8_t
umass_atapi_transform(struct umass_softc *sc, uint8_t *cmd_ptr,
uint8_t cmd_len)
{
if ((cmd_len == 0) ||
(cmd_len > sizeof(sc->sc_transfer.cmd_data))) {
DPRINTF(sc, UDMASS_SCSI, "Invalid command "
"length: %d bytes\n", cmd_len);
return (0); /* failure */
}
/* An ATAPI command is always 12 bytes in length. */
sc->sc_transfer.cmd_len = ATAPI_COMMAND_LENGTH;
/* Zero the command data */
memset(sc->sc_transfer.cmd_data, 0, ATAPI_COMMAND_LENGTH);
switch (cmd_ptr[0]) {
/*
* Commands of which the format has been verified. They
* should work. Copy the command into the destination
* buffer.
*/
case INQUIRY:
/*
* some drives wedge when asked for full inquiry
* information.
*/
if (sc->sc_quirks & FORCE_SHORT_INQUIRY) {
memcpy(sc->sc_transfer.cmd_data, cmd_ptr, cmd_len);
sc->sc_transfer.cmd_data[4] = SHORT_INQUIRY_LENGTH;
return (1);
}
break;
case TEST_UNIT_READY:
if (sc->sc_quirks & NO_TEST_UNIT_READY) {
DPRINTF(sc, UDMASS_SCSI, "Converted TEST_UNIT_READY "
"to START_UNIT\n");
sc->sc_transfer.cmd_data[0] = START_STOP_UNIT;
sc->sc_transfer.cmd_data[4] = SSS_START;
return (1);
}
break;
case REZERO_UNIT:
case REQUEST_SENSE:
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 SYNCHRONIZE_CACHE:
case MODE_SELECT_10:
case MODE_SENSE_10:
case READ_BUFFER:
case 0x42: /* READ_SUBCHANNEL */
case 0x43: /* READ_TOC */
case 0x44: /* READ_HEADER */
case 0x47: /* PLAY_MSF (Play Minute/Second/Frame) */
case 0x48: /* PLAY_TRACK */
case 0x49: /* PLAY_TRACK_REL */
case 0x4b: /* PAUSE */
case 0x51: /* READ_DISK_INFO */
case 0x52: /* READ_TRACK_INFO */
case 0x54: /* SEND_OPC */
case 0x59: /* READ_MASTER_CUE */
case 0x5b: /* CLOSE_TR_SESSION */
case 0x5c: /* READ_BUFFER_CAP */
case 0x5d: /* SEND_CUE_SHEET */
case 0xa1: /* BLANK */
case 0xa5: /* PLAY_12 */
case 0xa6: /* EXCHANGE_MEDIUM */
case 0xad: /* READ_DVD_STRUCTURE */
case 0xbb: /* SET_CD_SPEED */
case 0xe5: /* READ_TRACK_INFO_PHILIPS */
break;
case READ_12:
case WRITE_12:
default:
DPRINTF(sc, UDMASS_SCSI, "Unsupported ATAPI "
"command 0x%02x - trying anyway\n",
cmd_ptr[0]);
break;
}
memcpy(sc->sc_transfer.cmd_data, cmd_ptr, cmd_len);
return (1); /* success */
}
static uint8_t
umass_no_transform(struct umass_softc *sc, uint8_t *cmd,
uint8_t cmdlen)
{
return (0); /* failure */
}
static uint8_t
umass_std_transform(struct umass_softc *sc, union ccb *ccb,
uint8_t *cmd, uint8_t cmdlen)
{
uint8_t retval;
retval = (sc->sc_transform) (sc, cmd, cmdlen);
if (retval == 2) {
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
return (0);
} else if (retval == 0) {
xpt_freeze_devq(ccb->ccb_h.path, 1);
ccb->ccb_h.status = CAM_REQ_INVALID | CAM_DEV_QFRZN;
xpt_done(ccb);
return (0);
}
/* Command should be executed */
return (1);
}
#ifdef USB_DEBUG
static void
umass_bbb_dump_cbw(struct umass_softc *sc, umass_bbb_cbw_t *cbw)
{
uint8_t *c = cbw->CBWCDB;
uint32_t dlen = UGETDW(cbw->dCBWDataTransferLength);
uint32_t tag = UGETDW(cbw->dCBWTag);
uint8_t clen = cbw->bCDBLength;
uint8_t flags = cbw->bCBWFlags;
uint8_t lun = cbw->bCBWLUN;
DPRINTF(sc, UDMASS_BBB, "CBW %d: cmd = %db "
"(0x%02x%02x%02x%02x%02x%02x%s), "
"data = %db, lun = %d, dir = %s\n",
tag, clen,
c[0], c[1], c[2], c[3], c[4], c[5], (clen > 6 ? "..." : ""),
dlen, lun, (flags == CBWFLAGS_IN ? "in" :
(flags == CBWFLAGS_OUT ? "out" : "<invalid>")));
}
static void
umass_bbb_dump_csw(struct umass_softc *sc, umass_bbb_csw_t *csw)
{
uint32_t sig = UGETDW(csw->dCSWSignature);
uint32_t tag = UGETDW(csw->dCSWTag);
uint32_t res = UGETDW(csw->dCSWDataResidue);
uint8_t status = csw->bCSWStatus;
DPRINTF(sc, UDMASS_BBB, "CSW %d: sig = 0x%08x (%s), tag = 0x%08x, "
"res = %d, status = 0x%02x (%s)\n",
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_cbi_dump_cmd(struct umass_softc *sc, void *cmd, uint8_t cmdlen)
{
uint8_t *c = cmd;
uint8_t dir = sc->sc_transfer.dir;
DPRINTF(sc, UDMASS_BBB, "cmd = %db "
"(0x%02x%02x%02x%02x%02x%02x%s), "
"data = %db, dir = %s\n",
cmdlen,
c[0], c[1], c[2], c[3], c[4], c[5], (cmdlen > 6 ? "..." : ""),
sc->sc_transfer.data_len,
(dir == DIR_IN ? "in" :
(dir == DIR_OUT ? "out" :
(dir == DIR_NONE ? "no data phase" : "<invalid>"))));
}
static void
umass_dump_buffer(struct umass_softc *sc, uint8_t *buffer, uint32_t buflen,
uint32_t printlen)
{
uint32_t 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(sc, UDMASS_GEN, "0x %s%s\n",
s1, s2);
s2[0] = '\0';
}
sprintf(&s1[j * 2], "%02x", buffer[i] & 0xff);
}
if (buflen > printlen)
sprintf(s3, " ...");
DPRINTF(sc, UDMASS_GEN, "0x %s%s%s\n",
s1, s2, s3);
}
#endif
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