/* $NetBSD: umass.c,v 1.37 2000/05/31 16:13:31 augustss Exp $ */ /*- * Copyright (c) 1999 MAEKAWA Masahide , * Nick Hibma * 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: src/sys/dev/usb/umass.c,v 1.13 2000/03/26 01:39:12 n_hibma Exp $ */ /* * Universal Serial Bus Mass Storage Class Bulk-Only Transport * http://www.usb.org/developers/usbmassbulk_09.pdf * XXX Add URL to CBI spec in www.usb.org */ /* * Ported to NetBSD by Lennart Augustsson . * Parts of the code written my Jason R. Thorpe . */ /* * 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) * - 8070 (ATA/ATAPI) * * UFI and 8070i are transformed versions of the SCSI command set. The * 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 * * The protocols are implemented using a state machine, for the transfers as * well as for the resets. The state machine is contained in umass_*_state. * The state machine is started through either umass_*_transfer 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. */ /* XXX Should we split the driver into a number of files? umass.c, * umass_scsi.c, umass_8070.c, umass_ufi.c, umass_bbb.c, umass_cbi.c or * something similar? */ #include "atapibus.h" #include #include #include #include #if defined(__NetBSD__) || defined(__OpenBSD__) #include #include #include #include #undef KASSERT #define KASSERT(cond, msg) #elif defined(__FreeBSD__) #include #include #include #endif #include #include #include #include #if defined(__FreeBSD__) #include #include #include #include #include #include #ifdef UMASS_DO_CAM_RESCAN #include #include #endif #elif defined(__NetBSD__) || defined(__OpenBSD__) #include #include #include #include #include #include #include #include #include /* XXX */ #include /* XXX */ #include /* XXX */ #endif #ifdef UMASS_DEBUG #define DIF(m, x) if (umassdebug & (m)) do { x ; } while (0) #define DPRINTF(m, x) if (umassdebug & (m)) logprintf x #define UDMASS_UPPER 0x00008000 /* upper layer */ #define UDMASS_GEN 0x00010000 /* general */ #define UDMASS_SCSI 0x00020000 /* scsi */ #define UDMASS_UFI 0x00040000 /* ufi command set */ #define UDMASS_8070 0x00080000 /* 8070i command set */ #define UDMASS_USB 0x00100000 /* USB general */ #define UDMASS_BBB 0x00200000 /* Bulk-Only transfers */ #define UDMASS_CBI 0x00400000 /* CBI transfers */ #define UDMASS_ALL 0xffff0000 /* all of the above */ #define UDMASS_XFER 0x40000000 /* all transfers */ #define UDMASS_CMD 0x80000000 int umassdebug = 0; //UDMASS_ALL; #else #define DIF(m, x) /* nop */ #define DPRINTF(m, x) /* nop */ #endif /* Generic definitions */ #define UFI_COMMAND_LENGTH 12 /* Direction for umass_*_transfer */ #define DIR_NONE 0 #define DIR_IN 1 #define DIR_OUT 2 /* The transfer speed determines the timeout value */ #define UMASS_DEFAULT_TRANSFER_SPEED 150 /* in kb/s, conservative est. */ #define UMASS_FLOPPY_TRANSFER_SPEED 20 #define UMASS_ZIP100_TRANSFER_SPEED 650 #define UMASS_SPINUP_TIME 10000 /* ms */ #ifdef __FreeBSD__ /* device name */ #define DEVNAME "umass" #define DEVNAME_SIM "umass-" #define UMASS_MAX_TRANSFER_SIZE 65536 /* CAM specific definitions */ /* The bus id, whatever that is */ #define UMASS_SCSI_BUS 0 /* All USB drives are 'connected' to one SIM (SCSI controller). umass3 * ends up being target 3 on that SIM. When a request for target 3 * comes in we fetch the softc with devclass_get_softc(target_id). * * The SIM is the highest target number. This makes sure that umass0 corresponds * to target 0 on the USB SCSI bus. */ #ifndef UMASS_DEBUG #define UMASS_SCSIID_MAX 32 /* maximum number of drives expected */ #else /* while debugging avoid unnecessary clutter in the output at umass_cam_rescan * (XPT_PATH_INQ) */ #define UMASS_SCSIID_MAX 3 /* maximum number of drives expected */ #endif #define UMASS_SCSIID_HOST UMASS_SCSIID_MAX #endif #define MS_TO_TICKS(ms) ((ms) * hz / 1000) /* Bulk-Only features */ #define UR_BBB_RESET 0xff /* Bulk-Only reset */ #define UR_BBB_GET_MAX_LUN 0xfe /* 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]; } umass_bbb_cbw_t; #define UMASS_BBB_CBW_SIZE 31 /* Command Status Wrapper */ typedef struct { uDWord dCSWSignature; # define CSWSIGNATURE 0x53425355 uDWord dCSWTag; uDWord dCSWDataResidue; uByte bCSWStatus; # define CSWSTATUS_GOOD 0x0 # define CSWSTATUS_FAILED 0x1 # define CSWSTATUS_PHASE 0x2 } umass_bbb_csw_t; #define UMASS_BBB_CSW_SIZE 13 /* CBI features */ #define UR_CBI_ADSC 0x00 typedef unsigned char umass_cbi_cbl_t[16]; /* Command block */ typedef union { struct { unsigned char type; #define IDB_TYPE_CCI 0x00 unsigned char 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 } common; struct { unsigned char asc; unsigned char ascq; } ufi; } umass_cbi_sbl_t; struct umass_softc; /* see below */ typedef void (*transfer_cb_f) __P((struct umass_softc *sc, void *priv, int residue, int 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 void (*wire_reset_f) __P((struct umass_softc *sc, int status)); typedef void (*wire_transfer_f) __P((struct umass_softc *sc, int lun, void *cmd, int cmdlen, void *data, int datalen, int dir, transfer_cb_f cb, void *priv)); typedef void (*wire_state_f) __P((usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status err)); #if defined(__FreeBSD__) typedef int (*command_transform_f) __P((struct umass_softc *sc, unsigned char *cmd, int cmdlen, unsigned char **rcmd, int *rcmdlen)); #endif /* the per device structure */ struct umass_softc { USBBASEDEVICE sc_dev; /* base device */ usbd_device_handle sc_udev; /* device */ unsigned char drive; # define DRIVE_GENERIC 0 /* use defaults for this one */ # define ZIP_100 1 /* to be used for quirks */ # define SHUTTLE_EUSB 2 unsigned char quirks; /* The drive does not support Test Unit Ready. Convert to * Start Unit. * Y-E Data * ZIP 100 */ # define NO_TEST_UNIT_READY 0x01 /* 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. * Y-E Data */ # define RS_NO_CLEAR_UA 0x02 /* no REQUEST SENSE on INQUIRY*/ /* The drive does not support START_STOP. * Shuttle E-USB */ # define NO_START_STOP 0x04 unsigned int proto; # define PROTO_UNKNOWN 0x0000 /* unknown protocol */ # define PROTO_BBB 0x0001 /* USB wire protocol */ # define PROTO_CBI 0x0002 # define PROTO_CBI_I 0x0004 # define PROTO_WIRE 0x00ff /* USB wire protocol mask */ # define PROTO_SCSI 0x0100 /* command protocol */ # define PROTO_ATAPI 0x0200 # define PROTO_UFI 0x0400 # define PROTO_COMMAND 0xff00 /* command protocol mask */ usbd_interface_handle iface; /* Mass Storage interface */ int ifaceno; /* MS iface number */ u_int8_t bulkin; /* bulk-in Endpoint Address */ u_int8_t bulkout; /* bulk-out Endpoint Address */ u_int8_t intrin; /* intr-in Endp. (CBI) */ usbd_pipe_handle bulkin_pipe; usbd_pipe_handle bulkout_pipe; usbd_pipe_handle intrin_pipe; /* Reset the device in a wire protocol specific way */ wire_reset_f reset; /* The start of a wire transfer. It prepares the whole transfer (cmd, * data, and status stage) and initiates it. It is up to the state * machine (below) to handle the various stages and errors in these */ wire_transfer_f transfer; /* The state machine, handling the various states during a transfer */ wire_state_f state; #if defined(__FreeBSD__) /* The command transform function is used to conver the SCSI commands * into their derivatives, like UFI, ATAPI, and friends. */ command_transform_f transform; /* command transform */ #endif /* 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_cbl_t cbl; /* command block */ umass_cbi_sbl_t sbl; /* status block */ /* generic variables for transfers in progress */ /* ctrl transfer requests */ usb_device_request_t request; /* xfer handles * Most of our operations are initiated from interrupt context, so * we need to avoid using the one that is in use. We want to avoid * allocating them in the interrupt context as well. */ /* indices into array below */ # define XFER_BBB_CBW 0 /* Bulk-Only */ # define XFER_BBB_DATA 1 # define XFER_BBB_DCLEAR 2 # define XFER_BBB_CSW1 3 # define XFER_BBB_CSW2 4 # define XFER_BBB_SCLEAR 5 # define XFER_BBB_RESET1 6 # define XFER_BBB_RESET2 7 # define XFER_BBB_RESET3 8 # define XFER_CBI_CB 0 /* CBI */ # define XFER_CBI_DATA 1 # define XFER_CBI_STATUS 2 # define XFER_CBI_DCLEAR 3 # define XFER_CBI_SCLEAR 4 # define XFER_CBI_RESET1 5 # define XFER_CBI_RESET2 6 # define XFER_CBI_RESET3 7 # define XFER_NR 9 /* maximum number */ usbd_xfer_handle transfer_xfer[XFER_NR]; /* for ctrl xfers */ void *data_buffer; int transfer_dir; /* data direction */ void *transfer_data; /* data buffer */ int transfer_datalen; /* (maximum) length */ int transfer_actlen; /* actual length */ transfer_cb_f transfer_cb; /* callback */ void *transfer_priv; /* for callback */ int transfer_status; int transfer_state; # define TSTATE_IDLE 0 # define TSTATE_BBB_COMMAND 1 /* CBW transfer */ # define TSTATE_BBB_DATA 2 /* Data transfer */ # define TSTATE_BBB_DCLEAR 3 /* clear endpt stall */ # define TSTATE_BBB_STATUS1 4 /* clear endpt stall */ # define TSTATE_BBB_SCLEAR 5 /* clear endpt stall */ # define TSTATE_BBB_STATUS2 6 /* CSW transfer */ # define TSTATE_BBB_RESET1 7 /* reset command */ # define TSTATE_BBB_RESET2 8 /* in clear stall */ # define TSTATE_BBB_RESET3 9 /* out clear stall */ # define TSTATE_CBI_COMMAND 10 /* command transfer */ # define TSTATE_CBI_DATA 11 /* data transfer */ # define TSTATE_CBI_STATUS 12 /* status transfer */ # define TSTATE_CBI_DCLEAR 13 /* clear ep stall */ # define TSTATE_CBI_SCLEAR 14 /* clear ep stall */ # define TSTATE_CBI_RESET1 15 /* reset command */ # define TSTATE_CBI_RESET2 16 /* in clear stall */ # define TSTATE_CBI_RESET3 17 /* out clear stall */ # define TSTATE_STATES 18 /* # of states above */ int transfer_speed; /* in kb/s */ int timeout; /* in msecs */ u_int8_t maxlun; /* max lun supported */ #if defined(__FreeBSD__) /* SCSI/CAM specific variables */ struct scsi_sense cam_scsi_sense; #elif defined(__NetBSD__) || defined(__OpenBSD__) union { struct scsipi_link sc_link; struct { struct ata_atapi_attach sc_aa; struct ata_drive_datas sc_aa_drive; } aa; } u; struct atapi_adapter sc_atapi_adapter; #define sc_adapter sc_atapi_adapter._generic int sc_xfer_flags; usbd_status sc_sync_status; struct scsipi_sense sc_sense_cmd; device_ptr_t sc_child; /* child device, for detach */ char sc_dying; #endif }; #ifdef UMASS_DEBUG char *states[TSTATE_STATES+1] = { /* should be kept in sync with the list at transfer_state */ "Idle", "BBB CBW", "BBB Data", "BBB Data bulk-in/-out clear stall", "BBB CSW, 1st attempt", "BBB CSW bulk-in clear stall", "BBB CSW, 2nd attempt", "BBB Reset", "BBB bulk-in clear stall", "BBB bulk-out clear stall", "CBI Command", "CBI Data", "CBI Status", "CBI Data bulk-in/-out clear stall", "CBI Status intr-in clear stall", "CBI Reset", "CBI bulk-in clear stall", "CBI bulk-out clear stall", NULL }; #endif struct cam_sim *umass_sim; /* SCSI Interface Module */ struct cam_path *umass_path; /* and its path */ /* USB device probe/attach/detach functions */ USB_DECLARE_DRIVER(umass); Static void umass_disco __P((struct umass_softc *sc)); Static int umass_match_proto __P((struct umass_softc *sc, usbd_interface_handle iface, usbd_device_handle dev)); Static void umass_init_shuttle __P((struct umass_softc *sc)); /* generic transfer functions */ Static usbd_status umass_setup_transfer __P((struct umass_softc *sc, usbd_pipe_handle pipe, void *buffer, int buflen, int flags, usbd_xfer_handle xfer)); Static usbd_status umass_setup_ctrl_transfer __P((struct umass_softc *sc, usbd_device_handle dev, usb_device_request_t *req, void *buffer, int buflen, int flags, usbd_xfer_handle xfer)); Static void umass_clear_endpoint_stall __P((struct umass_softc *sc, u_int8_t endpt, usbd_pipe_handle pipe, int state, usbd_xfer_handle xfer)); #if 0 Static void umass_reset __P((struct umass_softc *sc, transfer_cb_f cb, void *priv)); #endif /* Bulk-Only related functions */ Static void umass_bbb_reset __P((struct umass_softc *sc, int status)); Static void umass_bbb_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_bbb_state __P((usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status err)); usbd_status umass_bbb_get_max_lun __P((struct umass_softc *sc, u_int8_t *maxlun)); /* 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)); #if defined(__FreeBSD__) /* 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)); #ifdef UMASS_DO_CAM_RESCAN Static void umass_cam_rescan __P((struct umass_softc *sc)); #endif 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)); #elif defined(__NetBSD__) || defined(__OpenBSD__) #define UMASS_SCSIID_HOST 0x00 #define UMASS_SCSIID_DEVICE 0x01 #define UMASS_MAX_TRANSFER_SIZE MAXBSIZE struct scsipi_device umass_dev = { NULL, /* Use default error handler */ NULL, /* have a queue, served by this */ NULL, /* have no async handler */ NULL, /* Use default 'done' routine */ }; Static int umass_scsipi_cmd __P((struct scsipi_xfer *xs)); Static void umass_scsipi_minphys __P((struct buf *bp)); Static int umass_scsipi_ioctl __P((struct scsipi_link *, u_long, caddr_t, int, struct proc *)); Static int umass_scsipi_getgeom __P((struct scsipi_link *link, struct disk_parms *, u_long sectors)); Static void umass_scsipi_cb __P((struct umass_softc *sc, void *priv, int residue, int status)); Static void umass_scsipi_sense_cb __P((struct umass_softc *sc, void *priv, int residue, int status)); Static int scsipiprint __P((void *aux, const char *pnp)); Static int umass_ufi_transform __P((struct umass_softc *sc, struct scsipi_generic *cmd, int cmdlen, struct scsipi_generic *rcmd, int *rcmdlen)); #if NATAPIBUS > 0 Static void umass_atapi_probedev __P((struct atapibus_softc *, int)); #endif #endif #if defined(__FreeBSD__) /* 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 */ Static int umass_ufi_transform __P((struct umass_softc *sc, unsigned char *cmd, int cmdlen, unsigned char **rcmd, int *rcmdlen)); /* 8070 specific functions */ Static int umass_8070_transform __P((struct umass_softc *sc, unsigned char *cmd, int cmdlen, unsigned char **rcmd, int *rcmdlen)); #endif #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 void usbd_clear_endpoint_toggle(usbd_pipe_handle pipe); /* XXXXX */ /* * 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(sc, iface, dev) struct umass_softc *sc; usbd_interface_handle iface; usbd_device_handle dev; { usb_device_descriptor_t *dd; usb_interface_descriptor_t *id; /* * 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; sc->sc_udev = dev; dd = usbd_get_device_descriptor(dev); 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_YEDATA && UGETW(dd->idProduct) == USB_PRODUCT_YEDATA_FLASHBUSTERU) { /* Revisions < 1.28 do not handle the interrupt 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_REV); } id = usbd_get_interface_descriptor(iface); if (id == NULL || id->bInterfaceClass != UICLASS_MASS) return (UMATCH_NONE); switch (id->bInterfaceSubClass) { case UISUBCLASS_SCSI: sc->proto |= PROTO_SCSI; break; case UISUBCLASS_UFI: sc->transfer_speed = UMASS_FLOPPY_TRANSFER_SPEED; sc->proto |= PROTO_UFI; break; case UISUBCLASS_SFF8020I: case UISUBCLASS_SFF8070I: case UISUBCLASS_QIC157: 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 UIPROTO_MASS_CBI: sc->proto |= PROTO_CBI; break; case UIPROTO_MASS_CBI_I: #if CBI_I sc->proto |= PROTO_CBI_I; #else sc->proto |= PROTO_CBI; #endif break; case UIPROTO_MASS_BBB: sc->proto |= PROTO_BBB; break; case UIPROTO_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); #if defined(__FreeBSD__) struct umass_softc *sc = device_get_softc(self); #else if defined(__NetBSD__) || defined(__OpenBSD__) struct umass_softc scs, *sc = &scs; memset(sc, 0, sizeof *sc); #endif 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; const char *sSubclass, *sProto; char devinfo[1024]; int i, bno; 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); /* * The timeout is based on the maximum expected transfer size * divided by the expected transfer speed. * We multiply by 4 to make sure a busy system doesn't make things * fail. */ sc->timeout = 4 * UMASS_MAX_TRANSFER_SIZE / sc->transfer_speed; sc->timeout += UMASS_SPINUP_TIME; /* allow for spinning up */ id = usbd_get_interface_descriptor(sc->iface); printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); switch (id->bInterfaceSubClass) { case UISUBCLASS_SCSI: sSubclass = "SCSI"; break; case UISUBCLASS_UFI: sSubclass = "UFI"; break; case UISUBCLASS_SFF8020I: sSubclass = "SFF8020i"; break; case UISUBCLASS_SFF8070I: sSubclass = "SFF8070i"; break; case UISUBCLASS_QIC157: sSubclass = "QIC157"; break; default: sSubclass = "unknown"; break; } switch (id->bInterfaceProtocol) { case UIPROTO_MASS_CBI: sProto = "CBI"; break; case UIPROTO_MASS_CBI_I: sProto = "CBI-I"; break; case UIPROTO_MASS_BBB: sProto = "BBB"; break; case UIPROTO_MASS_BBB_P: sProto = "BBB-P"; break; default: sProto = "unknown"; break; } printf("%s: using %s over %s\n", USBDEVNAME(sc->sc_dev), sSubclass, sProto); /* * 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_disco(sc); USB_ATTACH_ERROR_RETURN; } /* * Get the maximum LUN supported by the device. */ if ((sc->proto & PROTO_WIRE) == PROTO_BBB) { err = umass_bbb_get_max_lun(sc, &sc->maxlun); if (err) { printf("%s: unable to get Max Lun: %s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err)); USB_ATTACH_ERROR_RETURN; } } else { sc->maxlun = 0; } /* 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_disco(sc); 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_disco(sc); 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 concurrently. */ 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_disco(sc); 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] == 0) { DPRINTF(UDMASS_USB, ("%s: Out of memory\n", USBDEVNAME(sc->sc_dev))); umass_disco(sc); USB_ATTACH_ERROR_RETURN; } } /* Allocate buffer for data transfer (it's huge). */ switch (sc->proto & PROTO_WIRE) { case PROTO_BBB: bno = XFER_BBB_DATA; goto dalloc; case PROTO_CBI: bno = XFER_CBI_DATA; goto dalloc; case PROTO_CBI_I: bno = XFER_CBI_DATA; dalloc: sc->data_buffer = usbd_alloc_buffer(sc->transfer_xfer[bno], UMASS_MAX_TRANSFER_SIZE); if (sc->data_buffer == NULL) { umass_disco(sc); USB_ATTACH_ERROR_RETURN; } break; default: break; } /* 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->drive == SHUTTLE_EUSB) umass_init_shuttle(sc); #if defined(__FreeBSD__) 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_8070_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->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_disco(self); USB_ATTACH_ERROR_RETURN; } } /* Attach the new device to our SCSI host controller (SIM) */ err = umass_cam_attach(sc); if (err) { umass_disco(self); USB_ATTACH_ERROR_RETURN; } } else { panic("%s:%d: Unknown proto 0x%02x\n", __FILE__, __LINE__, sc->proto); } #elif defined(__NetBSD__) || defined(__OpenBSD__) /* * Fill in the adapter. */ sc->sc_adapter.scsipi_cmd = umass_scsipi_cmd; sc->sc_adapter.scsipi_minphys = umass_scsipi_minphys; sc->sc_adapter.scsipi_ioctl = umass_scsipi_ioctl; sc->sc_adapter.scsipi_getgeom = umass_scsipi_getgeom; /* * fill in the prototype scsipi_link. */ switch (sc->proto & PROTO_COMMAND) { case PROTO_UFI: sc->u.sc_link.quirks |= SDEV_ONLYBIG; /* fall into */ case PROTO_SCSI: sc->u.sc_link.type = BUS_SCSI; sc->u.sc_link.scsipi_scsi.channel = SCSI_CHANNEL_ONLY_ONE; sc->u.sc_link.adapter_softc = sc; sc->u.sc_link.scsipi_scsi.adapter_target = UMASS_SCSIID_HOST; sc->u.sc_link.adapter = &sc->sc_adapter; sc->u.sc_link.device = &umass_dev; sc->u.sc_link.openings = 1; sc->u.sc_link.scsipi_scsi.max_target = UMASS_SCSIID_DEVICE; sc->u.sc_link.scsipi_scsi.max_lun = sc->maxlun; if (sc->quirks & NO_TEST_UNIT_READY) sc->u.sc_link.quirks |= ADEV_NOTUR; break; #if NATAPIBUS > 0 case PROTO_ATAPI: sc->u.aa.sc_aa.aa_type = T_ATAPI; sc->u.aa.sc_aa.aa_channel = 0; sc->u.aa.sc_aa.aa_openings = 1; sc->u.aa.sc_aa.aa_drv_data = &sc->u.aa.sc_aa_drive; sc->u.aa.sc_aa.aa_bus_private = &sc->sc_atapi_adapter; sc->sc_atapi_adapter.atapi_probedev = umass_atapi_probedev; sc->sc_atapi_adapter.atapi_kill_pending = scsi_kill_pending; break; #endif default: printf("%s: proto=0x%x not supported yet\n", USBDEVNAME(sc->sc_dev), sc->proto); umass_disco(sc); USB_ATTACH_ERROR_RETURN; } sc->sc_child = config_found(&sc->sc_dev, &sc->u, scsipiprint); if (sc->sc_child == NULL) { umass_disco(sc); /* Not an error, just not a complete success. */ USB_ATTACH_SUCCESS_RETURN; } #endif usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, USBDEV(sc->sc_dev)); DPRINTF(UDMASS_GEN, ("%s: Attach finished\n", USBDEVNAME(sc->sc_dev))); USB_ATTACH_SUCCESS_RETURN; } Static int scsipiprint(aux, pnp) void *aux; const char *pnp; { struct scsipi_link *l = aux; if (l->type == BUS_SCSI) return (scsiprint(aux, pnp)); else { #if NATAPIBUS > 0 extern int atapi_print __P((void *aux, const char *pnp)); return (atapi_print(aux, pnp)); #else if (pnp) printf("atapibus at %s", pnp); return (UNCONF); #endif } } USB_DETACH(umass) { USB_DETACH_START(umass, sc); int rv = 0; DPRINTF(UDMASS_USB, ("%s: detached\n", USBDEVNAME(sc->sc_dev))); /* Abort the pipes to wake up any waiting processes. */ if (sc->bulkout_pipe != NULL) usbd_abort_pipe(sc->bulkout_pipe); if (sc->bulkin_pipe != NULL) usbd_abort_pipe(sc->bulkin_pipe); if (sc->intrin_pipe != NULL) usbd_abort_pipe(sc->intrin_pipe); #if 0 /* Do we really need referebce counting? Perhaps in ioctl() */ s = splusb(); if (--sc->sc_refcnt >= 0) { /* Wait for processes to go away. */ usb_detach_wait(USBDEV(sc->sc_dev)); } splx(s); #endif #if defined(__FreeBSD__) if ((sc->proto & PROTO_SCSI) || (sc->proto & PROTO_ATAPI) || (sc->proto & PROTO_UFI)) /* detach the device from the SCSI host controller (SIM) */ rv = umass_cam_detach(sc); #elif defined(__NetBSD__) || defined(__OpenBSD__) if (sc->sc_child != NULL) rv = config_detach(sc->sc_child, flags); #endif if (rv != 0) return (rv); umass_disco(sc); usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, USBDEV(sc->sc_dev)); return (0); } #if defined(__NetBSD__) || defined(__OpenBSD__) int umass_activate(self, act) struct device *self; enum devact act; { struct umass_softc *sc = (struct umass_softc *) self; int rv = 0; DPRINTF(UDMASS_USB, ("%s: umass_activate: %d\n", USBDEVNAME(sc->sc_dev), act)); switch (act) { case DVACT_ACTIVATE: rv = EOPNOTSUPP; break; case DVACT_DEACTIVATE: if (sc->sc_child != NULL) break; rv = config_deactivate(sc->sc_child); DPRINTF(UDMASS_USB, ("%s: umass_activate: child " "returned %d\n", USBDEVNAME(sc->sc_dev), rv)); if (rv == 0) sc->sc_dying = 1; break; } return (rv); } #endif Static void umass_disco(sc) struct umass_softc *sc; { int i; DPRINTF(UDMASS_GEN, ("umass_disco\n")); /* Free the xfers. */ for (i = 0; i < XFER_NR; i++) if (sc->transfer_xfer[i] != NULL) { usbd_free_xfer(sc->transfer_xfer[i]); sc->transfer_xfer[i] = NULL; } /* Remove all the pipes. */ if (sc->bulkout_pipe != NULL) usbd_close_pipe(sc->bulkout_pipe); if (sc->bulkin_pipe != NULL) usbd_close_pipe(sc->bulkin_pipe); if (sc->intrin_pipe != NULL) usbd_close_pipe(sc->intrin_pipe); } Static void umass_init_shuttle(struct umass_softc *sc) { usb_device_request_t req; u_char status[2]; /* The Linux driver does this */ 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; if (sc->sc_dying) return (USBD_IOERROR); /* Initialiase a USB transfer and then schedule it */ usbd_setup_xfer(xfer, pipe, (void *)sc, buffer, buflen, flags | sc->sc_xfer_flags, sc->timeout, sc->state); err = usbd_transfer(xfer); DPRINTF(UDMASS_XFER,("%s: start xfer buffer=%p buflen=%d flags=0x%x " "timeout=%d\n", USBDEVNAME(sc->sc_dev), buffer, buflen, flags | sc->sc_xfer_flags, sc->timeout)); 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 dev, usb_device_request_t *req, void *buffer, int buflen, int flags, usbd_xfer_handle xfer) { usbd_status err; if (sc->sc_dying) return (USBD_IOERROR); /* Initialiase a USB control transfer and then schedule it */ usbd_setup_default_xfer(xfer, dev, (void *) sc, sc->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 dev; if (sc->sc_dying) return; DPRINTF(UDMASS_BBB, ("%s: Clear endpoint 0x%02x stall\n", USBDEVNAME(sc->sc_dev), endpt)); usbd_interface2device_handle(sc->iface, &dev); 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, dev, &sc->request, NULL, 0, 0, xfer); } #if 0 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); } #endif /* * Bulk protocol specific functions */ Static void umass_bbb_reset(struct umass_softc *sc, int status) { usbd_device_handle dev; KASSERT(sc->proto & PROTO_BBB, ("sc->proto == 0x%02x wrong for umass_bbb_reset\n", sc->proto)); if (sc->sc_dying) return; /* * 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, &dev); /* 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, dev, &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) { static int dCBWtag = 42; /* unique for CBW of transfer */ DPRINTF(UDMASS_BBB,("%s: umass_bbb_transfer cmd=0x%02x\n", USBDEVNAME(sc->sc_dev), *(u_char*)cmd)); 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 */ USETDW(sc->cbw.dCBWSignature, CBWSIGNATURE); USETDW(sc->cbw.dCBWTag, dCBWtag); dCBWtag++; /* cannot be done in macro (it will be done 4 times) */ 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)); if (sc->sc_dying) return; /* * 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->data_buffer, sc->transfer_datalen, USBD_SHORT_XFER_OK | USBD_NO_COPY, sc->transfer_xfer[XFER_BBB_DATA])) umass_bbb_reset(sc, STATUS_WIRE_FAILED); return; } else if (sc->transfer_dir == DIR_OUT) { memcpy(sc->data_buffer, sc->transfer_data, sc->transfer_datalen); if (umass_setup_transfer(sc, sc->bulkout_pipe, sc->data_buffer, sc->transfer_datalen, USBD_NO_COPY,/* 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; } } } if (sc->transfer_dir == DIR_IN) memcpy(sc->transfer_data, sc->data_buffer, sc->transfer_actlen); 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); } } /* * 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 dev; 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, &dev); 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, dev, &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)); if (sc->sc_dying) return; /* * 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) { DPRINTF(UDMASS_CBI,("%s: umass_cbi_transfer cmd=0x%02x, len=%d\n", USBDEVNAME(sc->sc_dev), *(u_char*)cmd, datalen)); KASSERT(sc->proto & (PROTO_CBI|PROTO_CBI_I), ("sc->proto == 0x%02x wrong for umass_cbi_transfer\n", sc->proto)); if (sc->sc_dying) return; /* * 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)); if (sc->sc_dying) return; /* * 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 | USBD_NO_COPY, sc->transfer_xfer[XFER_CBI_DATA])) umass_cbi_reset(sc, STATUS_WIRE_FAILED); } else if (sc->transfer_dir == DIR_OUT) { memcpy(sc->data_buffer, sc->transfer_data, sc->transfer_datalen); if (umass_setup_transfer(sc, sc->bulkout_pipe, sc->transfer_data, sc->transfer_datalen, USBD_NO_COPY,/* 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); DPRINTF(UDMASS_CBI, ("%s: CBI_DATA actlen=%d\n", USBDEVNAME(sc->sc_dev), sc->transfer_actlen)); 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; } if (sc->transfer_dir == DIR_IN) memcpy(sc->transfer_data, sc->data_buffer, sc->transfer_actlen); 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); } } usbd_status umass_bbb_get_max_lun(struct umass_softc *sc, u_int8_t *maxlun) { usbd_device_handle dev; usb_device_request_t req; usbd_status err; usb_interface_descriptor_t *id; *maxlun = 0; /* Default to 0. */ DPRINTF(UDMASS_BBB, ("%s: Get Max Lun\n", USBDEVNAME(sc->sc_dev))); usbd_interface2device_handle(sc->iface, &dev); 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(dev, &req, maxlun); switch (err) { case USBD_NORMAL_COMPLETION: DPRINTF(UDMASS_BBB, ("%s: Max Lun %d\n", USBDEVNAME(sc->sc_dev), *maxlun)); break; case USBD_STALLED: /* * Device doesn't support Get Max Lun request. */ err = USBD_NORMAL_COMPLETION; DPRINTF(UDMASS_BBB, ("%s: Get Max Lun not supported\n", USBDEVNAME(sc->sc_dev))); break; case USBD_SHORT_XFER: /* * XXX This must mean Get Max Lun is not supported, too! */ err = USBD_NORMAL_COMPLETION; DPRINTF(UDMASS_BBB, ("%s: Get Max Lun SHORT_XFER\n", USBDEVNAME(sc->sc_dev))); break; default: printf("%s: Get Max Lun failed: %s\n", USBDEVNAME(sc->sc_dev), usbd_errstr(err)); /* XXX Should we port_reset the device? */ break; } return (err); } #if defined(__FreeBSD__) /* * CAM specific functions (used by SCSI, UFI, 8070) */ 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 devices is limitted to one. */ /* SCSI transparent command set */ devq = cam_simq_alloc(1 /*maximum openings*/); if (devq == NULL) return(ENOMEM); umass_sim = cam_sim_alloc(umass_cam_action, umass_cam_poll, DEVNAME, NULL /*priv*/, 0 /*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, 0) != CAM_SUCCESS) return(ENOMEM); if (xpt_create_path(&umass_path, NULL, cam_sim_path(umass_sim), UMASS_SCSIID_HOST, 0) != CAM_REQ_CMP) return(ENOMEM); return(0); } #ifdef UMASS_DO_CAM_RESCAN /* this function is only used from umass_cam_rescan, so mention * prototype down here. */ Static void umass_cam_rescan_callback(struct cam_periph *periph,union ccb *ccb); Static void umass_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb) { #ifdef UMASS_DEBUG struct umass_softc *sc = devclass_get_softc(umass_devclass, ccb->ccb_h.target_id); if (ccb->ccb_h.status != CAM_REQ_CMP) { DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d: Rescan failed, 0x%04x\n", USBDEVNAME(sc->sc_dev), UMASS_SCSI_BUS, ccb->ccb_h.target_id, ccb->ccb_h.target_lun, ccb->ccb_h.status)); } else { DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d: Rescan succeeded, freeing resources.\n", USBDEVNAME(sc->sc_dev), UMASS_SCSI_BUS, ccb->ccb_h.target_id, ccb->ccb_h.target_lun)); } #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, ("%s:%d:%d:%d: scanning bus for new device %d\n", USBDEVNAME(sc->sc_dev), cam_sim_path(umass_sim), device_get_unit(sc->sc_dev), 0, device_get_unit(sc->sc_dev))); if (xpt_create_path(&path, xpt_periph, cam_sim_path(umass_sim), device_get_unit(sc->sc_dev), 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. */ } #endif 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("%s: Increase UMASS_SCSIID_MAX (currently %d) in %s " "and try again.\n", USBDEVNAME(sc->sc_dev), UMASS_SCSIID_MAX, __FILE__); return(1); } #ifdef UMASS_DO_CAM_RESCAN if (!cold) { /* Notify CAM of the new device. Any failure is benign, as the * user can still do it by hand (camcontrol rescan ). * 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); } #endif return(0); /* always succesful */ } /* 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_path) { /* XXX do we need to send an asynchroneous event for the SIM? xpt_async(AC_LOST_DEVICE, umass_path, NULL); */ xpt_free_path(umass_path); umass_path = NULL; } 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: losing CAM device entry\n", USBDEVNAME(sc->sc_dev))); if (xpt_create_path(&path, NULL, cam_sim_path(umass_sim), device_get_unit(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->sc_dying) { DPRINTF(UDMASS_SCSI, ("%s:%d:%d:%d:func_code 0x%04x: " "Invalid target (gone)\n", USBDEVNAME(sc->sc_dev), UMASS_SCSI_BUS, 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\n", DEVNAME_SIM, UMASS_SCSI_BUS, 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\n", DEVNAME_SIM, UMASS_SCSI_BUS, 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; 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), UMASS_SCSI_BUS, 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), UMASS_SCSI_BUS, 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 (sc->transform(sc, csio->cdb_io.cdb_bytes, csio->cdb_len, &cmd, &cmdlen)) { sc->transfer(sc, ccb->ccb_h.target_lun, cmd, cmdlen, 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)), UMASS_SCSI_BUS, 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 */ cpi->max_lun = 0; /* no LUN's supported */ 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->max_lun = sc->maxlun; } 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), UMASS_SCSI_BUS, 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), UMASS_SCSI_BUS, 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), UMASS_SCSI_BUS, 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), UMASS_SCSI_BUS, 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)), UMASS_SCSI_BUS, 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)), UMASS_SCSI_BUS, 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 *cmd; int cmdlen; /* fetch sense data */ DPRINTF(UDMASS_SCSI,("%s: Fetching %db sense data\n", USBDEVNAME(sc->sc_dev), sc->cam_scsi_sense.length)); sc->cam_scsi_sense.length = csio->sense_len; if (sc->transform(sc, (char *) &sc->cam_scsi_sense, sizeof(sc->cam_scsi_sense), &cmd, &cmdlen)) { sc->transfer(sc, ccb->ccb_h.target_lun, cmd, cmdlen, &csio->sense_data, csio->sense_len, DIR_IN, umass_cam_sense_cb, (void *) ccb); } else { #ifdef UMASS_DEBUG panic("transform(REQUEST_SENSE) failed\n"); #else csio->resid = sc->transfer_datalen; ccb->ccb_h.status = CAM_REQ_CMP_ERR; xpt_done(ccb); #endif } 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)); } } /* (even the comment is missing) */ DRIVER_MODULE(umass, uhub, umass_driver, umass_devclass, umass_driver_load, 0); /* * SCSI specific functions */ Static int umass_scsi_transform(struct umass_softc *sc, unsigned char *cmd, int cmdlen, unsigned char **rcmd, int *rcmdlen) { *rcmd = cmd; /* trivial copy */ *rcmdlen = cmdlen; switch (cmd[0]) { case TEST_UNIT_READY: if (sc->quirks & NO_TEST_UNIT_READY) { DPRINTF(UDMASS_SCSI, ("%s: Converted TEST_UNIT_READY " "to START_UNIT\n", USBDEVNAME(sc->sc_dev))); cmd[0] = START_STOP_UNIT; cmd[4] = SSS_START; } break; } 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) { *rcmd = cmd; /* A UFI command is always 12 bytes in length */ /* XXX cmd[(cmdlen+1)..12] contains garbage */ *rcmdlen = 12; switch (cmd[0]) { case TEST_UNIT_READY: if (sc->quirks & NO_TEST_UNIT_READY) { 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; case INQUIRY: case START_STOP_UNIT: case MODE_SENSE: case PREVENT_ALLOW: case READ_10: case READ_12: case READ_CAPACITY: case REQUEST_SENSE: case REZERO_UNIT: case POSITION_TO_ELEMENT: /* SEEK_10 */ case SEND_DIAGNOSTIC: case WRITE_10: case WRITE_12: /* FORMAT_UNIT */ /* MODE_SELECT */ /* READ_FORMAT_CAPACITY */ /* VERIFY */ /* WRITE_AND_VERIFY */ return 1; /* success */ default: return 0; /* success */ } } /* * 8070 specific functions */ Static int umass_8070_transform(struct umass_softc *sc, unsigned char *cmd, int cmdlen, unsigned char **rcmd, int *rcmdlen) { return 0; /* failure */ } #endif /* __FreeBSD__ */ #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":"")))); } 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":""))))); } 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 #if defined(__NetBSD__) || defined(__OpenBSD__) Static int umass_scsipi_cmd(xs) struct scsipi_xfer *xs; { struct scsipi_link *sc_link = xs->sc_link; struct umass_softc *sc = sc_link->adapter_softc; struct scsipi_generic *cmd, trcmd; int cmdlen; int dir; DIF(UDMASS_UPPER, sc_link->flags |= DEBUGLEVEL); DPRINTF(UDMASS_CMD, ("%s: umass_scsi_cmd: %d:%d xs=%p cmd=0x%02x " "(quirks=0x%x, poll=%d)\n", USBDEVNAME(sc->sc_dev), sc_link->scsipi_scsi.target, sc_link->scsipi_scsi.lun, xs, xs->cmd->opcode, sc_link->quirks, xs->xs_control & XS_CTL_POLL)); #if defined(USB_DEBUG) && defined(SCSIDEBUG) if (umassdebug & UDMASS_SCSI) show_scsipi_xs(xs); else if (umassdebug & ~UDMASS_CMD) show_scsipi_cmd(xs); #endif if (sc->sc_dying) { xs->error = XS_DRIVER_STUFFUP; goto done; } #ifdef UMASS_DEBUG if ((sc_link->type == BUS_ATAPI ? sc_link->scsipi_atapi.drive : sc_link->scsipi_scsi.target) != UMASS_SCSIID_DEVICE) { DPRINTF(UDMASS_SCSI, ("%s: wrong SCSI ID %d\n", USBDEVNAME(sc->sc_dev), sc_link->scsipi_scsi.target)); xs->error = XS_DRIVER_STUFFUP; goto done; } #endif if (xs->cmd->opcode == SCSI_MODE_SENSE && (sc_link->quirks & SDEV_NOMODESENSE)) { /*printf("%s: SCSI_MODE_SENSE\n", USBDEVNAME(sc->sc_dev));*/ xs->error = XS_TIMEOUT; goto done; } if (xs->cmd->opcode == START_STOP && (sc->quirks & NO_START_STOP)) { /*printf("%s: START_STOP\n", USBDEVNAME(sc->sc_dev));*/ xs->error = XS_NOERROR; goto done; } dir = DIR_NONE; if (xs->datalen) { switch (xs->xs_control & (XS_CTL_DATA_IN | XS_CTL_DATA_OUT)) { case XS_CTL_DATA_IN: dir = DIR_IN; break; case XS_CTL_DATA_OUT: dir = DIR_OUT; break; } } if (xs->datalen > UMASS_MAX_TRANSFER_SIZE) { printf("umass_cmd: large datalen, %d\n", xs->datalen); xs->error = XS_DRIVER_STUFFUP; goto done; } cmd = xs->cmd; cmdlen = xs->cmdlen; if (sc->proto & PROTO_UFI) { if (!umass_ufi_transform(sc, cmd, cmdlen, &trcmd, &cmdlen)) { xs->error = XS_DRIVER_STUFFUP; goto done; } cmd = &trcmd; } if (xs->xs_control & XS_CTL_POLL) { /* Use sync transfer. XXX Broken! */ DPRINTF(UDMASS_SCSI, ("umass_scsi_cmd: sync dir=%d\n", dir)); sc->sc_xfer_flags = USBD_SYNCHRONOUS; sc->sc_sync_status = USBD_INVAL; sc->transfer(sc, sc_link->scsipi_scsi.lun, cmd, cmdlen, xs->data, xs->datalen, dir, 0, xs); sc->sc_xfer_flags = 0; DPRINTF(UDMASS_SCSI, ("umass_scsi_cmd: done err=%d\n", sc->sc_sync_status)); switch (sc->sc_sync_status) { case USBD_NORMAL_COMPLETION: xs->error = XS_NOERROR; break; case USBD_TIMEOUT: xs->error = XS_TIMEOUT; break; default: xs->error = XS_DRIVER_STUFFUP; break; } goto done; } else { DPRINTF(UDMASS_SCSI, ("umass_scsi_cmd: async dir=%d, cmdlen=%d" " datalen=%d\n", dir, cmdlen, xs->datalen)); sc->transfer(sc, sc_link->scsipi_scsi.lun, cmd, cmdlen, xs->data, xs->datalen, dir, umass_scsipi_cb, xs); return (SUCCESSFULLY_QUEUED); } /* Return if command finishes early. */ done: xs->xs_status |= XS_STS_DONE; scsipi_done(xs); if (xs->xs_control & XS_CTL_POLL) return (COMPLETE); else return (SUCCESSFULLY_QUEUED); } Static void umass_scsipi_minphys(bp) struct buf *bp; { if (bp->b_bcount > UMASS_MAX_TRANSFER_SIZE) bp->b_bcount = UMASS_MAX_TRANSFER_SIZE; minphys(bp); } int umass_scsipi_ioctl(link, cmd, arg, flag, p) struct scsipi_link *link; u_long cmd; caddr_t arg; int flag; struct proc *p; { /*struct umass_softc *sc = link->adapter_softc;*/ switch (cmd) { #if 0 case SCBUSIORESET: ccb->ccb_h.status = CAM_REQ_INPROG; umass_reset(sc, umass_cam_cb, (void *) ccb); return (0); #endif default: return (ENOTTY); } } Static int umass_scsipi_getgeom(sc_link, dp, sectors) struct scsipi_link *sc_link; struct disk_parms *dp; u_long sectors; { struct umass_softc *sc = sc_link->adapter_softc; /* If it's not a floppy, we don't know what to do. */ if (!(sc->proto & PROTO_UFI)) return (0); switch (sectors) { case 1440: /* Most likely a single density 3.5" floppy. */ dp->heads = 2; dp->sectors = 9; dp->cyls = 80; return (1); case 2880: /* Most likely a double density 3.5" floppy. */ dp->heads = 2; dp->sectors = 18; dp->cyls = 80; return (1); default: return (0); } } Static void umass_scsipi_cb(struct umass_softc *sc, void *priv, int residue, int status) { struct scsipi_xfer *xs = priv; struct scsipi_link *sc_link = xs->sc_link; int cmdlen; int s; DPRINTF(UDMASS_CMD,("umass_scsipi_cb: xs=%p residue=%d status=%d\n", xs, residue, status)); xs->resid = residue; switch (status) { case STATUS_CMD_OK: xs->error = XS_NOERROR; break; case STATUS_CMD_UNKNOWN: case STATUS_CMD_FAILED: /* fetch sense data */ memset(&sc->sc_sense_cmd, 0, sizeof(sc->sc_sense_cmd)); sc->sc_sense_cmd.opcode = REQUEST_SENSE; sc->sc_sense_cmd.byte2 = sc_link->scsipi_scsi.lun << SCSI_CMD_LUN_SHIFT; sc->sc_sense_cmd.length = sizeof(xs->sense); cmdlen = sizeof(sc->sc_sense_cmd); if (sc->proto & PROTO_UFI) /* XXX */ cmdlen = UFI_COMMAND_LENGTH; sc->transfer(sc, sc_link->scsipi_scsi.lun, &sc->sc_sense_cmd, cmdlen, &xs->sense, sizeof(xs->sense), DIR_IN, umass_scsipi_sense_cb, xs); return; case STATUS_WIRE_FAILED: xs->error = XS_RESET; break; default: panic("%s: Unknown status %d in umass_scsipi_cb\n", USBDEVNAME(sc->sc_dev), status); } xs->xs_status |= XS_STS_DONE; DPRINTF(UDMASS_CMD,("umass_scsipi_cb: return xs->error=%d, " "xs->xs_status=0x%x xs->resid=%d\n", xs->error, xs->xs_status, xs->resid)); s = splbio(); scsipi_done(xs); splx(s); } /* * Finalise a completed autosense operation */ Static void umass_scsipi_sense_cb(struct umass_softc *sc, void *priv, int residue, int status) { struct scsipi_xfer *xs = priv; int s; DPRINTF(UDMASS_CMD,("umass_scsipi_sense_cb: xs=%p residue=%d " "status=%d\n", xs, residue, status)); switch (status) { case STATUS_CMD_OK: case STATUS_CMD_UNKNOWN: /* getting sense data succeeded */ if (xs->cmd->opcode == INQUIRY && (xs->resid < xs->datalen || ((sc->quirks & RS_NO_CLEAR_UA) /* XXX */) )) { /* * Some drivers return SENSE errors even after INQUIRY. * The upper layer doesn't like that. */ xs->error = XS_NOERROR; break; } /* XXX look at residue */ if (residue == 0 || residue == 14)/* XXX */ xs->error = XS_SENSE; else xs->error = XS_SHORTSENSE; break; default: DPRINTF(UDMASS_SCSI, ("%s: Autosense failed, status %d\n", USBDEVNAME(sc->sc_dev), status)); xs->error = XS_DRIVER_STUFFUP; break; } xs->xs_status |= XS_STS_DONE; DPRINTF(UDMASS_CMD,("umass_scsipi_sense_cb: return xs->error=%d, " "xs->xs_status=0x%x xs->resid=%d\n", xs->error, xs->xs_status, xs->resid)); s = splbio(); scsipi_done(xs); splx(s); } /* * UFI specific functions */ Static int umass_ufi_transform(struct umass_softc *sc, struct scsipi_generic *cmd, int cmdlen, struct scsipi_generic *rcmd, int *rcmdlen) { *rcmdlen = UFI_COMMAND_LENGTH; memset(rcmd, 0, sizeof *rcmd); /* Handle any quirks */ if (cmd->opcode == 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->opcode = START_STOP; cmd->bytes[3] = SSS_START; return 1; } switch (cmd->opcode) { /* Commands of which the format has been verified. They should work. */ case TEST_UNIT_READY: case SCSI_REZERO_UNIT: case REQUEST_SENSE: case INQUIRY: case START_STOP: /*case SEND_DIAGNOSTIC: ??*/ case PREVENT_ALLOW: case READ_CAPACITY: case READ_BIG: case WRITE_BIG: case POSITION_TO_ELEMENT: /* SEEK_10 */ case SCSI_MODE_SELECT_BIG: case SCSI_MODE_SENSE_BIG: /* 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. */ case SCSI_READ_COMMAND: case SCSI_WRITE_COMMAND: case SCSI_MODE_SENSE: case SCSI_MODE_SELECT: default: printf("%s: Unsupported UFI command 0x%02x", USBDEVNAME(sc->sc_dev), cmd->opcode); if (cmdlen == 6) printf(", 6 byte command should have been converted"); printf("\n"); return (0); /* failure */ } } #if NATAPIBUS > 0 Static void umass_atapi_probedev(atapi, target) struct atapibus_softc *atapi; int target; { struct scsipi_link *sc_link; struct scsipibus_attach_args sa; struct ata_drive_datas *drvp = &atapi->sc_drvs[target]; char vendor[33], product[65], revision[17]; struct scsipi_inquiry_data inqbuf; DPRINTF(UDMASS_SCSI,("umass_atapi_probedev: atapi=%p target=%d\n", atapi, target)); if (atapi->sc_link[target]) return; sc_link = malloc(sizeof(*sc_link), M_DEVBUF, M_NOWAIT); if (sc_link == NULL) { printf("%s: can't allocate link for drive %d\n", atapi->sc_dev.dv_xname, target); return; } *sc_link = *atapi->adapter_link; DIF(UDMASS_UPPER, sc_link->flags |= DEBUGLEVEL); /* Fill generic parts of the link. */ sc_link->active = 0; sc_link->scsipi_atapi.drive = target; sc_link->device = &umass_dev; TAILQ_INIT(&sc_link->pending_xfers); DPRINTF(UDMASS_SCSI, ("umass_atapi_probedev: doing inquiry\n")); /* Now go ask the device all about itself. */ memset(&inqbuf, 0, sizeof(inqbuf)); if (scsipi_inquire(sc_link, &inqbuf, XS_CTL_DISCOVERY) != 0) goto bad; scsipi_strvis(vendor, 33, inqbuf.vendor, 8); scsipi_strvis(product, 65, inqbuf.product, 16); scsipi_strvis(revision, 17, inqbuf.revision, 4); sa.sa_sc_link = sc_link; sa.sa_inqbuf.type = inqbuf.device; sa.sa_inqbuf.removable = inqbuf.dev_qual2 & SID_REMOVABLE ? T_REMOV : T_FIXED; if (sa.sa_inqbuf.removable) sc_link->flags |= SDEV_REMOVABLE; /* XXX how? sc_link->scsipi_atapi.cap |= ACAP_LEN;*/ sa.sa_inqbuf.vendor = vendor; sa.sa_inqbuf.product = product; sa.sa_inqbuf.revision = revision; sa.sa_inqptr = NULL; drvp->drv_softc = atapi_probedev(atapi, target, sc_link, &sa); /* atapi_probedev() frees the scsipi_link when there is no device. */ return; bad: free(sc_link, M_DEVBUF); return; } #endif #endif