The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/powerpc/ps3/ps3cdrom.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (C) 2010 Nathan Whitehorn
    5  * Copyright (C) 2011 glevand <geoffrey.levand@mail.ru>
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer,
   13  *    without modification, immediately at the beginning of the file.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   28  */
   29 
   30 #include <sys/cdefs.h>
   31 __FBSDID("$FreeBSD$");
   32 
   33 #include <sys/param.h>
   34 #include <sys/module.h>
   35 #include <sys/systm.h>
   36 #include <sys/kernel.h>
   37 #include <sys/ata.h>
   38 #include <sys/bus.h>
   39 #include <sys/conf.h>
   40 #include <sys/kthread.h>
   41 #include <sys/lock.h>
   42 #include <sys/malloc.h>
   43 #include <sys/mutex.h>
   44 
   45 #include <vm/vm.h>
   46 #include <vm/pmap.h>
   47 
   48 #include <machine/pio.h>
   49 #include <machine/bus.h>
   50 #include <machine/platform.h>
   51 #include <machine/resource.h>
   52 #include <sys/bus.h>
   53 #include <sys/rman.h>
   54 
   55 #include <cam/cam.h>
   56 #include <cam/cam_ccb.h>
   57 #include <cam/cam_sim.h>
   58 #include <cam/cam_xpt_sim.h>
   59 #include <cam/cam_debug.h>
   60 #include <cam/scsi/scsi_all.h>
   61 
   62 #include "ps3bus.h"
   63 #include "ps3-hvcall.h"
   64 
   65 #define PS3CDROM_LOCK_INIT(_sc)         \
   66         mtx_init(&_sc->sc_mtx, device_get_nameunit(_sc->sc_dev), "ps3cdrom", \
   67             MTX_DEF)
   68 #define PS3CDROM_LOCK_DESTROY(_sc)      mtx_destroy(&_sc->sc_mtx);
   69 #define PS3CDROM_LOCK(_sc)              mtx_lock(&(_sc)->sc_mtx)
   70 #define PS3CDROM_UNLOCK(_sc)            mtx_unlock(&(_sc)->sc_mtx)
   71 #define PS3CDROM_ASSERT_LOCKED(_sc)     mtx_assert(&_sc->sc_mtx, MA_OWNED);
   72 #define PS3CDROM_ASSERT_UNLOCKED(_sc)   mtx_assert(&_sc->sc_mtx, MA_NOTOWNED);
   73 
   74 #define PS3CDROM_MAX_XFERS              3
   75 
   76 #define LV1_STORAGE_SEND_ATAPI_COMMAND  0x01
   77 
   78 struct ps3cdrom_softc;
   79 
   80 struct ps3cdrom_xfer {
   81         TAILQ_ENTRY(ps3cdrom_xfer) x_queue;
   82         struct ps3cdrom_softc *x_sc;
   83         union ccb *x_ccb;
   84         bus_dmamap_t x_dmamap;
   85         uint64_t x_tag;
   86 };
   87 
   88 TAILQ_HEAD(ps3cdrom_xferq, ps3cdrom_xfer);
   89 
   90 struct ps3cdrom_softc {
   91         device_t sc_dev;
   92 
   93         struct mtx sc_mtx;
   94 
   95         uint64_t sc_blksize;
   96         uint64_t sc_nblocks;
   97 
   98         int sc_irqid;
   99         struct resource *sc_irq;
  100         void *sc_irqctx;
  101 
  102         bus_dma_tag_t sc_dmatag;
  103 
  104         struct cam_sim *sc_sim;
  105         struct cam_path *sc_path;
  106 
  107         struct ps3cdrom_xfer sc_xfer[PS3CDROM_MAX_XFERS];
  108         struct ps3cdrom_xferq sc_active_xferq;
  109         struct ps3cdrom_xferq sc_free_xferq;
  110 };
  111 
  112 enum lv1_ata_proto {
  113         NON_DATA_PROTO          = 0x00,
  114         PIO_DATA_IN_PROTO       = 0x01,
  115         PIO_DATA_OUT_PROTO      = 0x02,
  116         DMA_PROTO               = 0x03
  117 };
  118 
  119 enum lv1_ata_in_out {
  120         DIR_WRITE               = 0x00,
  121         DIR_READ                = 0x01
  122 };
  123 
  124 struct lv1_atapi_cmd {
  125         uint8_t pkt[32];
  126         uint32_t pktlen;
  127         uint32_t nblocks;
  128         uint32_t blksize;
  129         uint32_t proto;         /* enum lv1_ata_proto */
  130         uint32_t in_out;        /* enum lv1_ata_in_out */
  131         uint64_t buf;
  132         uint32_t arglen;
  133 };
  134 
  135 static void ps3cdrom_action(struct cam_sim *sim, union ccb *ccb);
  136 static void ps3cdrom_poll(struct cam_sim *sim);
  137 static void ps3cdrom_async(void *callback_arg, u_int32_t code,
  138     struct cam_path* path, void *arg);
  139 
  140 static void ps3cdrom_intr(void *arg);
  141 
  142 static void ps3cdrom_transfer(void *arg, bus_dma_segment_t *segs, int nsegs,
  143     int error);
  144 
  145 static int ps3cdrom_decode_lv1_status(uint64_t status,
  146         u_int8_t *sense_key, u_int8_t *asc, u_int8_t *ascq);
  147 
  148 static int
  149 ps3cdrom_probe(device_t dev)
  150 {
  151         if (ps3bus_get_bustype(dev) != PS3_BUSTYPE_STORAGE ||
  152             ps3bus_get_devtype(dev) != PS3_DEVTYPE_CDROM)
  153                 return (ENXIO);
  154 
  155         device_set_desc(dev, "Playstation 3 CDROM");
  156 
  157         return (BUS_PROBE_SPECIFIC);
  158 }
  159 
  160 static int
  161 ps3cdrom_attach(device_t dev)
  162 {
  163         struct ps3cdrom_softc *sc = device_get_softc(dev);
  164         struct cam_devq *devq;
  165         struct ps3cdrom_xfer *xp;
  166         struct ccb_setasync csa;
  167         int i, err;
  168 
  169         sc->sc_dev = dev;
  170 
  171         PS3CDROM_LOCK_INIT(sc);
  172 
  173         /* Setup interrupt handler */
  174 
  175         sc->sc_irqid = 0;
  176         sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->sc_irqid,
  177             RF_ACTIVE);
  178         if (!sc->sc_irq) {
  179                 device_printf(dev, "Could not allocate IRQ\n");
  180                 err = ENXIO;
  181                 goto fail_destroy_lock;
  182         }
  183 
  184         err = bus_setup_intr(dev, sc->sc_irq,
  185             INTR_TYPE_CAM | INTR_MPSAFE | INTR_ENTROPY,
  186             NULL, ps3cdrom_intr, sc, &sc->sc_irqctx);
  187         if (err) {
  188                 device_printf(dev, "Could not setup IRQ\n");
  189                 err = ENXIO;
  190                 goto fail_release_intr;
  191         }
  192 
  193         /* Setup DMA */
  194 
  195         err = bus_dma_tag_create(bus_get_dma_tag(dev), 4096, 0,
  196             BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
  197             BUS_SPACE_UNRESTRICTED, 1, PAGE_SIZE, 0,
  198             busdma_lock_mutex, &sc->sc_mtx, &sc->sc_dmatag);
  199         if (err) {
  200                 device_printf(dev, "Could not create DMA tag\n");
  201                 err = ENXIO;
  202                 goto fail_teardown_intr;
  203         }
  204 
  205         /* Setup transfer queues */
  206 
  207         TAILQ_INIT(&sc->sc_active_xferq);
  208         TAILQ_INIT(&sc->sc_free_xferq);
  209 
  210         for (i = 0; i < PS3CDROM_MAX_XFERS; i++) {
  211                 xp = &sc->sc_xfer[i];
  212                 xp->x_sc = sc;
  213 
  214                 err = bus_dmamap_create(sc->sc_dmatag, BUS_DMA_COHERENT,
  215                     &xp->x_dmamap);
  216                 if (err) {
  217                         device_printf(dev, "Could not create DMA map (%d)\n",
  218                             err);
  219                         goto fail_destroy_dmamap;
  220                 }
  221 
  222                 TAILQ_INSERT_TAIL(&sc->sc_free_xferq, xp, x_queue);
  223         }
  224 
  225         /* Setup CAM */
  226 
  227         devq = cam_simq_alloc(PS3CDROM_MAX_XFERS - 1);
  228         if (!devq) {
  229                 device_printf(dev, "Could not allocate SIM queue\n");
  230                 err = ENOMEM;
  231                 goto fail_destroy_dmatag;
  232         }
  233 
  234         sc->sc_sim = cam_sim_alloc(ps3cdrom_action, ps3cdrom_poll, "ps3cdrom",
  235             sc, device_get_unit(dev), &sc->sc_mtx, PS3CDROM_MAX_XFERS - 1, 0,
  236             devq);
  237         if (!sc->sc_sim) {
  238                 device_printf(dev, "Could not allocate SIM\n");
  239                 cam_simq_free(devq);
  240                 err = ENOMEM;
  241                 goto fail_destroy_dmatag;
  242         }
  243 
  244         /* Setup XPT */
  245 
  246         PS3CDROM_LOCK(sc);
  247 
  248         err = xpt_bus_register(sc->sc_sim, dev, 0);
  249         if (err != CAM_SUCCESS) {
  250                 device_printf(dev, "Could not register XPT bus\n");
  251                 err = ENXIO;
  252                 PS3CDROM_UNLOCK(sc);
  253                 goto fail_free_sim;
  254         }
  255 
  256         err = xpt_create_path(&sc->sc_path, NULL, cam_sim_path(sc->sc_sim),
  257             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
  258         if (err != CAM_REQ_CMP) {
  259                 device_printf(dev, "Could not create XPT path\n");
  260                 err = ENOMEM;
  261                 PS3CDROM_UNLOCK(sc);
  262                 goto fail_unregister_xpt_bus;
  263         }
  264 
  265         xpt_setup_ccb(&csa.ccb_h, sc->sc_path, 5);
  266         csa.ccb_h.func_code = XPT_SASYNC_CB;
  267         csa.event_enable = AC_LOST_DEVICE;
  268         csa.callback = ps3cdrom_async;
  269         csa.callback_arg = sc->sc_sim;
  270         xpt_action((union ccb *) &csa);
  271 
  272         CAM_DEBUG(sc->sc_path, CAM_DEBUG_TRACE,
  273             ("registered SIM for ps3cdrom%d\n", device_get_unit(dev)));
  274 
  275         PS3CDROM_UNLOCK(sc);
  276 
  277         return (BUS_PROBE_SPECIFIC);
  278 
  279 fail_unregister_xpt_bus:
  280 
  281         xpt_bus_deregister(cam_sim_path(sc->sc_sim));
  282 
  283 fail_free_sim:
  284 
  285         cam_sim_free(sc->sc_sim, TRUE);
  286 
  287 fail_destroy_dmamap:
  288 
  289         while ((xp = TAILQ_FIRST(&sc->sc_free_xferq))) {
  290                 TAILQ_REMOVE(&sc->sc_free_xferq, xp, x_queue);
  291                 bus_dmamap_destroy(sc->sc_dmatag, xp->x_dmamap);
  292         }
  293 
  294 fail_destroy_dmatag:
  295 
  296         bus_dma_tag_destroy(sc->sc_dmatag);
  297 
  298 fail_teardown_intr:
  299 
  300         bus_teardown_intr(dev, sc->sc_irq, sc->sc_irqctx);
  301 
  302 fail_release_intr:
  303 
  304         bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqid, sc->sc_irq);
  305 
  306 fail_destroy_lock:
  307 
  308         PS3CDROM_LOCK_DESTROY(sc);
  309 
  310         return (err);
  311 }
  312 
  313 static int
  314 ps3cdrom_detach(device_t dev)
  315 {
  316         struct ps3cdrom_softc *sc = device_get_softc(dev);
  317         int i;
  318 
  319         xpt_async(AC_LOST_DEVICE, sc->sc_path, NULL);
  320         xpt_free_path(sc->sc_path);
  321         xpt_bus_deregister(cam_sim_path(sc->sc_sim));
  322         cam_sim_free(sc->sc_sim, TRUE);
  323 
  324         for (i = 0; i < PS3CDROM_MAX_XFERS; i++)
  325                 bus_dmamap_destroy(sc->sc_dmatag, sc->sc_xfer[i].x_dmamap);
  326 
  327         bus_dma_tag_destroy(sc->sc_dmatag);
  328 
  329         bus_teardown_intr(dev, sc->sc_irq, sc->sc_irqctx);
  330         bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irqid, sc->sc_irq);
  331 
  332         PS3CDROM_LOCK_DESTROY(sc);
  333 
  334         return (0);
  335 }
  336 
  337 static void
  338 ps3cdrom_action(struct cam_sim *sim, union ccb *ccb)
  339 {
  340         struct ps3cdrom_softc *sc = (struct ps3cdrom_softc *)cam_sim_softc(sim);
  341         device_t dev = sc->sc_dev;
  342         struct ps3cdrom_xfer *xp;
  343         int err;
  344 
  345         PS3CDROM_ASSERT_LOCKED(sc);
  346 
  347         CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE,
  348            ("function code 0x%02x\n", ccb->ccb_h.func_code));
  349 
  350         switch (ccb->ccb_h.func_code) {
  351         case XPT_SCSI_IO:
  352                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG)
  353                         break;
  354 
  355                 if(ccb->ccb_h.target_id > 0) {
  356                         ccb->ccb_h.status = CAM_TID_INVALID;
  357                         break;
  358                 }
  359 
  360                 if(ccb->ccb_h.target_lun > 0) {
  361                         ccb->ccb_h.status = CAM_LUN_INVALID;
  362                         break;
  363                 }
  364 
  365                 xp = TAILQ_FIRST(&sc->sc_free_xferq);
  366                 
  367                 KASSERT(xp != NULL, ("no free transfers"));
  368 
  369                 xp->x_ccb = ccb;
  370 
  371                 TAILQ_REMOVE(&sc->sc_free_xferq, xp, x_queue);
  372 
  373                 err = bus_dmamap_load_ccb(sc->sc_dmatag, xp->x_dmamap,
  374                     ccb, ps3cdrom_transfer, xp, 0);
  375                 if (err && err != EINPROGRESS) {
  376                         device_printf(dev, "Could not load DMA map (%d)\n",
  377                             err);
  378 
  379                         xp->x_ccb = NULL;
  380                         TAILQ_INSERT_TAIL(&sc->sc_free_xferq, xp, x_queue);
  381                         ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
  382                         break;
  383                 }
  384                 return;
  385         case XPT_SET_TRAN_SETTINGS:
  386                 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
  387                 break;
  388         case XPT_GET_TRAN_SETTINGS:
  389         {
  390                 struct ccb_trans_settings *cts = &ccb->cts;
  391 
  392                 cts->protocol = PROTO_SCSI;
  393                 cts->protocol_version = SCSI_REV_2;
  394                 cts->transport = XPORT_SPI;
  395                 cts->transport_version = 2;
  396                 cts->proto_specific.valid = 0;
  397                 cts->xport_specific.valid = 0;
  398                 ccb->ccb_h.status = CAM_REQ_CMP;
  399                 break;
  400         }
  401         case XPT_RESET_BUS:
  402         case XPT_RESET_DEV:
  403                 ccb->ccb_h.status = CAM_REQ_CMP;
  404                 break;
  405         case XPT_CALC_GEOMETRY:
  406                 cam_calc_geometry(&ccb->ccg, 1);
  407                 break;
  408         case XPT_PATH_INQ:
  409         {
  410                 struct ccb_pathinq *cpi = &ccb->cpi;
  411 
  412                 cpi->version_num = 1;
  413                 cpi->hba_inquiry = 0;
  414                 cpi->target_sprt = 0;
  415                 cpi->hba_inquiry = PI_SDTR_ABLE;
  416                 cpi->hba_misc = PIM_NOBUSRESET | PIM_SEQSCAN | PIM_NO_6_BYTE;
  417                 cpi->hba_eng_cnt = 0;
  418                 bzero(cpi->vuhba_flags, sizeof(cpi->vuhba_flags));
  419                 cpi->max_target = 0;
  420                 cpi->max_lun = 0;
  421                 cpi->initiator_id = 7;
  422                 cpi->bus_id = cam_sim_bus(sim);
  423                 cpi->unit_number = cam_sim_unit(sim);
  424                 cpi->base_transfer_speed = 150000;
  425                 strlcpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
  426                 strlcpy(cpi->hba_vid, "Sony", HBA_IDLEN);
  427                 strlcpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
  428                 cpi->transport = XPORT_SPI;
  429                 cpi->transport_version = 2;
  430                 cpi->protocol = PROTO_SCSI;
  431                 cpi->protocol_version = SCSI_REV_2;
  432                 cpi->maxio = PAGE_SIZE;
  433                 cpi->ccb_h.status = CAM_REQ_CMP;
  434                 break;
  435         }
  436         default:
  437                 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE,
  438                     ("unsupported function code 0x%02x\n",
  439                     ccb->ccb_h.func_code));
  440                 ccb->ccb_h.status = CAM_REQ_INVALID;
  441                 break;
  442         }
  443 
  444         xpt_done(ccb);
  445 }
  446 
  447 static void
  448 ps3cdrom_poll(struct cam_sim *sim)
  449 {
  450         ps3cdrom_intr(cam_sim_softc(sim));
  451 }
  452 
  453 static void
  454 ps3cdrom_async(void *callback_arg, u_int32_t code,
  455         struct cam_path* path, void *arg)
  456 {
  457         switch (code) {
  458         case AC_LOST_DEVICE:
  459                 xpt_print_path(path);
  460                 break;
  461         default:
  462                 break;
  463         }
  464 }
  465 
  466 static void
  467 ps3cdrom_intr(void *arg)
  468 {
  469         struct ps3cdrom_softc *sc = (struct ps3cdrom_softc *) arg;
  470         device_t dev = sc->sc_dev;
  471         uint64_t devid = ps3bus_get_device(dev);
  472         struct ps3cdrom_xfer *xp;
  473         union ccb *ccb;
  474         u_int8_t *cdb, sense_key, asc, ascq;
  475         uint64_t tag, status;
  476 
  477         if (lv1_storage_get_async_status(devid, &tag, &status) != 0)
  478                 return;
  479 
  480         PS3CDROM_LOCK(sc);
  481 
  482         /* Find transfer with the returned tag */
  483 
  484         TAILQ_FOREACH(xp, &sc->sc_active_xferq, x_queue) {
  485                 if (xp->x_tag == tag)
  486                         break;
  487         }
  488 
  489         if (xp) {
  490                 ccb = xp->x_ccb;
  491                 cdb = (ccb->ccb_h.flags & CAM_CDB_POINTER) ?
  492                             ccb->csio.cdb_io.cdb_ptr :
  493                             ccb->csio.cdb_io.cdb_bytes;
  494 
  495                 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE,
  496                    ("ATAPI command 0x%02x tag 0x%016lx completed (0x%016lx)\n",
  497                     cdb[0], tag, status));
  498 
  499                 if (!status) {
  500                         ccb->csio.scsi_status = SCSI_STATUS_OK;
  501                         ccb->csio.resid = 0;
  502                         ccb->ccb_h.status = CAM_REQ_CMP;
  503                 } else {
  504                         ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
  505                         ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
  506 
  507                         if (!ps3cdrom_decode_lv1_status(status, &sense_key,
  508                             &asc, &ascq)) {
  509 
  510                                 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE,
  511                                    ("sense key 0x%02x asc 0x%02x ascq 0x%02x\n",
  512                                     sense_key, asc, ascq));
  513 
  514                                 scsi_set_sense_data(&ccb->csio.sense_data,
  515                                     /*sense_format*/ SSD_TYPE_NONE,
  516                                     /*current_error*/ 1,
  517                                     sense_key,
  518                                     asc,
  519                                     ascq,
  520                                     SSD_ELEM_NONE);
  521                                 ccb->csio.sense_len = SSD_FULL_SIZE;
  522                                 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR |
  523                                     CAM_AUTOSNS_VALID;
  524                         }
  525 
  526                         if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE)
  527                                 ccb->csio.resid = ccb->csio.dxfer_len;
  528                 }
  529 
  530                 if (ccb->ccb_h.flags & CAM_DIR_IN)
  531                         bus_dmamap_sync(sc->sc_dmatag, xp->x_dmamap,
  532                             BUS_DMASYNC_POSTREAD);
  533 
  534                 bus_dmamap_unload(sc->sc_dmatag, xp->x_dmamap);
  535 
  536                 xp->x_ccb = NULL;
  537                 TAILQ_REMOVE(&sc->sc_active_xferq, xp, x_queue);
  538                 TAILQ_INSERT_TAIL(&sc->sc_free_xferq, xp, x_queue);
  539 
  540                 xpt_done(ccb);
  541         } else {
  542                 device_printf(dev,
  543                     "Could not find transfer with tag 0x%016lx\n",  tag);
  544         }
  545 
  546         PS3CDROM_UNLOCK(sc);
  547 }
  548 
  549 static void
  550 ps3cdrom_transfer(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
  551 {
  552         struct ps3cdrom_xfer *xp = (struct ps3cdrom_xfer *) arg;
  553         struct ps3cdrom_softc *sc = xp->x_sc;
  554         device_t dev = sc->sc_dev;
  555         uint64_t devid = ps3bus_get_device(dev);
  556         union ccb *ccb = xp->x_ccb;
  557         u_int8_t *cdb;
  558         uint64_t start_sector, block_count;
  559         int err;
  560 
  561         KASSERT(nsegs == 1 || nsegs == 0,
  562             ("ps3cdrom_transfer: invalid number of DMA segments %d", nsegs));
  563         KASSERT(error == 0, ("ps3cdrom_transfer: DMA error %d", error));
  564 
  565         PS3CDROM_ASSERT_LOCKED(sc);
  566 
  567         if (error) {
  568                 device_printf(dev, "Could not load DMA map (%d)\n",  error);
  569 
  570                 xp->x_ccb = NULL;
  571                 TAILQ_INSERT_TAIL(&sc->sc_free_xferq, xp, x_queue);
  572                 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR;
  573                 xpt_done(ccb);
  574                 return;
  575         }
  576 
  577         cdb = (ccb->ccb_h.flags & CAM_CDB_POINTER) ?
  578                     ccb->csio.cdb_io.cdb_ptr :
  579                     ccb->csio.cdb_io.cdb_bytes;
  580 
  581         CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE,
  582            ("ATAPI command 0x%02x cdb_len %d dxfer_len %d\n ", cdb[0],
  583             ccb->csio.cdb_len, ccb->csio.dxfer_len));
  584 
  585         switch (cdb[0]) {
  586         case READ_10:
  587                 KASSERT(nsegs == 1, ("ps3cdrom_transfer: no data to read"));
  588                 start_sector = (cdb[2] << 24) | (cdb[3] << 16) |
  589                     (cdb[4] << 8) | cdb[5];
  590                 block_count = (cdb[7] << 8) | cdb[8];
  591 
  592                 err = lv1_storage_read(devid, 0 /* region id */,
  593                     start_sector, block_count, 0 /* flags */, segs[0].ds_addr,
  594                     &xp->x_tag);
  595                 bus_dmamap_sync(sc->sc_dmatag, xp->x_dmamap,
  596                     BUS_DMASYNC_POSTREAD);
  597                 break;
  598         case WRITE_10:
  599                 KASSERT(nsegs == 1, ("ps3cdrom_transfer: no data to write"));
  600                 start_sector = (cdb[2] << 24) | (cdb[3] << 16) |
  601                     (cdb[4] << 8) | cdb[5];
  602                 block_count = (cdb[7] << 8) | cdb[8];
  603 
  604                 bus_dmamap_sync(sc->sc_dmatag, xp->x_dmamap,
  605                     BUS_DMASYNC_PREWRITE);
  606                 err = lv1_storage_write(devid, 0 /* region id */,
  607                     start_sector, block_count, 0 /* flags */,
  608                     segs[0].ds_addr, &xp->x_tag);
  609                 break;
  610         default:
  611                 {
  612                 struct lv1_atapi_cmd atapi_cmd;
  613 
  614                 bzero(&atapi_cmd, sizeof(atapi_cmd));
  615                 atapi_cmd.pktlen = 12;
  616                 bcopy(cdb, atapi_cmd.pkt, ccb->csio.cdb_len);
  617 
  618                 if (ccb->ccb_h.flags & CAM_DIR_IN) {
  619                         atapi_cmd.in_out = DIR_READ;
  620                         atapi_cmd.proto = (ccb->csio.dxfer_len >= 2048) ?
  621                             DMA_PROTO : PIO_DATA_IN_PROTO;
  622                 } else if (ccb->ccb_h.flags & CAM_DIR_OUT) {
  623                         atapi_cmd.in_out = DIR_WRITE;
  624                         atapi_cmd.proto = (ccb->csio.dxfer_len >= 2048) ?
  625                             DMA_PROTO : PIO_DATA_OUT_PROTO;
  626                 } else {
  627                         atapi_cmd.proto = NON_DATA_PROTO;
  628                 }
  629 
  630                 atapi_cmd.nblocks = atapi_cmd.arglen =
  631                     (nsegs == 0) ? 0 : segs[0].ds_len;
  632                 atapi_cmd.blksize = 1;
  633                 atapi_cmd.buf = (nsegs == 0) ? 0 : segs[0].ds_addr;
  634 
  635                 if (ccb->ccb_h.flags & CAM_DIR_OUT)
  636                         bus_dmamap_sync(sc->sc_dmatag, xp->x_dmamap,
  637                             BUS_DMASYNC_PREWRITE);
  638 
  639                 err = lv1_storage_send_device_command(devid,
  640                     LV1_STORAGE_SEND_ATAPI_COMMAND, vtophys(&atapi_cmd),
  641                     sizeof(atapi_cmd), atapi_cmd.buf, atapi_cmd.arglen,
  642                     &xp->x_tag);
  643         
  644                 break;
  645                 }
  646         }
  647 
  648         if (err) {
  649                 device_printf(dev, "ATAPI command 0x%02x failed (%d)\n",
  650                     cdb[0], err);
  651 
  652                 bus_dmamap_unload(sc->sc_dmatag, xp->x_dmamap);
  653 
  654                 xp->x_ccb = NULL;
  655                 TAILQ_INSERT_TAIL(&sc->sc_free_xferq, xp, x_queue);
  656 
  657                 bzero(&ccb->csio.sense_data, sizeof(ccb->csio.sense_data));
  658                 /* Invalid field in parameter list */
  659                 scsi_set_sense_data(&ccb->csio.sense_data,
  660                                     /*sense_format*/ SSD_TYPE_NONE,
  661                                     /*current_error*/ 1,
  662                                     /*sense_key*/ SSD_KEY_ILLEGAL_REQUEST,
  663                                     /*asc*/ 0x26,
  664                                     /*ascq*/ 0x00,
  665                                     SSD_ELEM_NONE);
  666 
  667                 ccb->csio.sense_len = SSD_FULL_SIZE;
  668                 ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
  669                 ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
  670                 xpt_done(ccb);
  671         } else {
  672                 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE,
  673                    ("ATAPI command 0x%02x tag 0x%016lx submitted\n ", cdb[0],
  674                    xp->x_tag));
  675 
  676                 TAILQ_INSERT_TAIL(&sc->sc_active_xferq, xp, x_queue);
  677                 ccb->ccb_h.status |= CAM_SIM_QUEUED;
  678         }
  679 }
  680 
  681 static int
  682 ps3cdrom_decode_lv1_status(uint64_t status, u_int8_t *sense_key, u_int8_t *asc,
  683     u_int8_t *ascq)
  684 {
  685         if (((status >> 24) & 0xff) != SCSI_STATUS_CHECK_COND)
  686                 return -1;
  687 
  688         *sense_key = (status >> 16) & 0xff;
  689         *asc = (status >> 8) & 0xff;
  690         *ascq = status & 0xff;
  691 
  692         return (0);
  693 }
  694 
  695 static device_method_t ps3cdrom_methods[] = {
  696         DEVMETHOD(device_probe,         ps3cdrom_probe),
  697         DEVMETHOD(device_attach,        ps3cdrom_attach),
  698         DEVMETHOD(device_detach,        ps3cdrom_detach),
  699         {0, 0},
  700 };
  701 
  702 static driver_t ps3cdrom_driver = {
  703         "ps3cdrom",
  704         ps3cdrom_methods,
  705         sizeof(struct ps3cdrom_softc),
  706 };
  707 
  708 static devclass_t ps3cdrom_devclass;
  709 
  710 DRIVER_MODULE(ps3cdrom, ps3bus, ps3cdrom_driver, ps3cdrom_devclass, 0, 0);
  711 MODULE_DEPEND(ps3cdrom, cam, 1, 1, 1);

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