sys/cam/mmc/mmc_xpt.c

   1 /*-
   2  * Copyright (c) 2013,2014 Ilya Bakulin <ilya@bakulin.de>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer,
  10  *    without modification, immediately at the beginning of the file.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 __FBSDID("$FreeBSD$");
  29
  30 #include <sys/param.h>
  31 #include <sys/bus.h>
  32 #include <sys/endian.h>
  33 #include <sys/systm.h>
  34 #include <sys/types.h>
  35 #include <sys/malloc.h>
  36 #include <sys/kernel.h>
  37 #include <sys/time.h>
  38 #include <sys/conf.h>
  39 #include <sys/fcntl.h>
  40 #include <sys/interrupt.h>
  41 #include <sys/sbuf.h>
  42
  43 #include <sys/lock.h>
  44 #include <sys/mutex.h>
  45 #include <sys/sysctl.h>
  46 #include <sys/condvar.h>
  47
  48 #include <cam/cam.h>
  49 #include <cam/cam_ccb.h>
  50 #include <cam/cam_queue.h>
  51 #include <cam/cam_periph.h>
  52 #include <cam/cam_sim.h>
  53 #include <cam/cam_xpt.h>
  54 #include <cam/cam_xpt_sim.h>
  55 #include <cam/cam_xpt_periph.h>
  56 #include <cam/cam_xpt_internal.h>
  57 #include <cam/cam_debug.h>
  58
  59 #include <cam/mmc/mmc.h>
  60 #include <cam/mmc/mmc_bus.h>
  61
  62 #include <machine/stdarg.h>     /* for xpt_print below */
  63 #include <machine/_inttypes.h>  /* for PRIu64 */
  64 #include "opt_cam.h"
  65
  66 FEATURE(mmccam, "CAM-based MMC/SD/SDIO stack");
  67
  68 static struct cam_ed * mmc_alloc_device(struct cam_eb *bus,
  69     struct cam_et *target, lun_id_t lun_id);
  70 static void mmc_dev_async(u_int32_t async_code, struct cam_eb *bus,
  71     struct cam_et *target, struct cam_ed *device, void *async_arg);
  72 static void      mmc_action(union ccb *start_ccb);
  73 static void      mmc_dev_advinfo(union ccb *start_ccb);
  74 static void      mmc_announce_periph(struct cam_periph *periph);
  75 static void      mmc_scan_lun(struct cam_periph *periph,
  76     struct cam_path *path, cam_flags flags, union ccb *ccb);
  77
  78 /* mmcprobe methods */
  79 static cam_status mmcprobe_register(struct cam_periph *periph, void *arg);
  80 static void      mmcprobe_start(struct cam_periph *periph, union ccb *start_ccb);
  81 static void      mmcprobe_cleanup(struct cam_periph *periph);
  82 static void      mmcprobe_done(struct cam_periph *periph, union ccb *done_ccb);
  83
  84 static void mmc_proto_announce(struct cam_ed *device);
  85 static void mmc_proto_denounce(struct cam_ed *device);
  86 static void mmc_proto_debug_out(union ccb *ccb);
  87
  88 typedef enum {
  89         PROBE_RESET,
  90         PROBE_IDENTIFY,
  91         PROBE_SDIO_RESET,
  92         PROBE_SEND_IF_COND,
  93         PROBE_SDIO_INIT,
  94         PROBE_MMC_INIT,
  95         PROBE_SEND_APP_OP_COND,
  96         PROBE_GET_CID,
  97         PROBE_GET_CSD,
  98         PROBE_SEND_RELATIVE_ADDR,
  99         PROBE_SELECT_CARD,
 100         PROBE_DONE,
 101         PROBE_INVALID
 102 } probe_action;
 103
 104 static char *probe_action_text[] = {
 105         "PROBE_RESET",
 106         "PROBE_IDENTIFY",
 107         "PROBE_SDIO_RESET",
 108         "PROBE_SEND_IF_COND",
 109         "PROBE_SDIO_INIT",
 110         "PROBE_MMC_INIT",
 111         "PROBE_SEND_APP_OP_COND",
 112         "PROBE_GET_CID",
 113         "PROBE_GET_CSD",
 114         "PROBE_SEND_RELATIVE_ADDR",
 115         "PROBE_SELECT_CARD",
 116         "PROBE_DONE",
 117         "PROBE_INVALID"
 118 };
 119
 120 #define PROBE_SET_ACTION(softc, newaction)      \
 121 do {                                                                    \
 122         char **text;                                                    \
 123         text = probe_action_text;                                       \
 124         CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE,               \
 125             ("Probe %s to %s\n", text[(softc)->action],                 \
 126             text[(newaction)]));                                        \
 127         (softc)->action = (newaction);                                  \
 128 } while(0)
 129
 130 static struct xpt_xport_ops mmc_xport_ops = {
 131         .alloc_device = mmc_alloc_device,
 132         .action = mmc_action,
 133         .async = mmc_dev_async,
 134         .announce = mmc_announce_periph,
 135 };
 136
 137 #define MMC_XPT_XPORT(x, X)                             \
 138         static struct xpt_xport mmc_xport_ ## x = {     \
 139                 .xport = XPORT_ ## X,                   \
 140                 .name = #x,                             \
 141                 .ops = &mmc_xport_ops,                  \
 142         };                                              \
 143         CAM_XPT_XPORT(mmc_xport_ ## x);
 144
 145 MMC_XPT_XPORT(mmc, MMCSD);
 146
 147 static struct xpt_proto_ops mmc_proto_ops = {
 148         .announce = mmc_proto_announce,
 149         .denounce = mmc_proto_denounce,
 150         .debug_out = mmc_proto_debug_out,
 151 };
 152
 153 static struct xpt_proto mmc_proto = {
 154         .proto = PROTO_MMCSD,
 155         .name = "mmcsd",
 156         .ops = &mmc_proto_ops,
 157 };
 158 CAM_XPT_PROTO(mmc_proto);
 159
 160 typedef struct {
 161         probe_action    action;
 162         int             restart;
 163         union ccb       saved_ccb;
 164         uint32_t        flags;
 165 #define PROBE_FLAG_ACMD_SENT    0x1 /* CMD55 is sent, card expects ACMD */
 166         uint8_t         acmd41_count; /* how many times ACMD41 has been issued */
 167         struct cam_periph *periph;
 168 } mmcprobe_softc;
 169
 170 /* XPort functions -- an interface to CAM at periph side */
 171
 172 static struct cam_ed *
 173 mmc_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id)
 174 {
 175         struct cam_ed *device;
 176
 177         printf("mmc_alloc_device()\n");
 178         device = xpt_alloc_device(bus, target, lun_id);
 179         if (device == NULL)
 180                 return (NULL);
 181
 182         device->quirk = NULL;
 183         device->mintags = 0;
 184         device->maxtags = 0;
 185         bzero(&device->inq_data, sizeof(device->inq_data));
 186         device->inq_flags = 0;
 187         device->queue_flags = 0;
 188         device->serial_num = NULL;
 189         device->serial_num_len = 0;
 190         return (device);
 191 }
 192
 193 static void
 194 mmc_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target,
 195               struct cam_ed *device, void *async_arg)
 196 {
 197
 198         printf("mmc_dev_async(async_code=0x%x, path_id=%d, target_id=%x, lun_id=%" SCNx64 "\n",
 199                async_code,
 200                bus->path_id,
 201                target->target_id,
 202                device->lun_id);
 203         /*
 204          * We only need to handle events for real devices.
 205          */
 206         if (target->target_id == CAM_TARGET_WILDCARD
 207             || device->lun_id == CAM_LUN_WILDCARD)
 208                 return;
 209
 210         if (async_code == AC_LOST_DEVICE) {
 211                 if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) {
 212                         printf("AC_LOST_DEVICE -> set to unconfigured\n");
 213                         device->flags |= CAM_DEV_UNCONFIGURED;
 214                         xpt_release_device(device);
 215                 } else {
 216                         printf("AC_LOST_DEVICE on unconfigured device\n");
 217                 }
 218         } else if (async_code == AC_FOUND_DEVICE) {
 219                 printf("Got AC_FOUND_DEVICE -- whatever...\n");
 220         } else if (async_code == AC_PATH_REGISTERED) {
 221                 printf("Got AC_PATH_REGISTERED -- whatever...\n");
 222         } else if (async_code == AC_PATH_DEREGISTERED ) {
 223                         printf("Got AC_PATH_DEREGISTERED -- whatever...\n");
 224         } else if (async_code == AC_UNIT_ATTENTION) {
 225                 printf("Got interrupt generated by the card and ignored it\n");
 226         } else
 227                 panic("Unknown async code\n");
 228 }
 229
 230 /* Taken from nvme_scan_lun, thanks to bsdimp@ */
 231 static void
 232 mmc_scan_lun(struct cam_periph *periph, struct cam_path *path,
 233              cam_flags flags, union ccb *request_ccb)
 234 {
 235         struct ccb_pathinq cpi;
 236         cam_status status;
 237         struct cam_periph *old_periph;
 238         int lock;
 239
 240         CAM_DEBUG(path, CAM_DEBUG_TRACE, ("mmc_scan_lun\n"));
 241
 242         xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NONE);
 243         cpi.ccb_h.func_code = XPT_PATH_INQ;
 244         xpt_action((union ccb *)&cpi);
 245
 246         if (cpi.ccb_h.status != CAM_REQ_CMP) {
 247                 if (request_ccb != NULL) {
 248                         request_ccb->ccb_h.status = cpi.ccb_h.status;
 249                         xpt_done(request_ccb);
 250                 }
 251                 return;
 252         }
 253
 254         if (xpt_path_lun_id(path) == CAM_LUN_WILDCARD) {
 255                 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("mmd_scan_lun ignoring bus\n"));
 256                 request_ccb->ccb_h.status = CAM_REQ_CMP;        /* XXX signal error ? */
 257                 xpt_done(request_ccb);
 258                 return;
 259         }
 260
 261         lock = (xpt_path_owned(path) == 0);
 262         if (lock)
 263                 xpt_path_lock(path);
 264
 265         if ((old_periph = cam_periph_find(path, "mmcprobe")) != NULL) {
 266                 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) {
 267 //                      mmcprobe_softc *softc;
 268 //                      softc = (mmcprobe_softc *)old_periph->softc;
 269 //                      Not sure if we need request ccb queue for mmc
 270 //                      TAILQ_INSERT_TAIL(&softc->request_ccbs,
 271 //                              &request_ccb->ccb_h, periph_links.tqe);
 272 //                      softc->restart = 1;
 273                         CAM_DEBUG(path, CAM_DEBUG_INFO,
 274                                   ("Got scan request, but mmcprobe already exists\n"));
 275                         request_ccb->ccb_h.status = CAM_REQ_CMP_ERR;
 276                         xpt_done(request_ccb);
 277                 } else {
 278                         request_ccb->ccb_h.status = CAM_REQ_CMP_ERR;
 279                         xpt_done(request_ccb);
 280                 }
 281         } else {
 282                 xpt_print(path, " Set up the mmcprobe device...\n");
 283
 284                 status = cam_periph_alloc(mmcprobe_register, NULL,
 285                                           mmcprobe_cleanup,
 286                                           mmcprobe_start,
 287                                           "mmcprobe",
 288                                           CAM_PERIPH_BIO,
 289                                           path, NULL, 0,
 290                                           request_ccb);
 291                 if (status != CAM_REQ_CMP) {
 292                         xpt_print(path, "xpt_scan_lun: cam_alloc_periph "
 293                                   "returned an error, can't continue probe\n");
 294                 }
 295                 request_ccb->ccb_h.status = status;
 296                 xpt_done(request_ccb);
 297         }
 298
 299         if (lock)
 300                 xpt_path_unlock(path);
 301 }
 302
 303 static void
 304 mmc_action(union ccb *start_ccb)
 305 {
 306         CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE,
 307                   ("mmc_action! func_code=%x, action %s\n", start_ccb->ccb_h.func_code,
 308                    xpt_action_name(start_ccb->ccb_h.func_code)));
 309         switch (start_ccb->ccb_h.func_code) {
 310
 311         case XPT_SCAN_BUS:
 312                 /* FALLTHROUGH */
 313         case XPT_SCAN_TGT:
 314                 /* FALLTHROUGH */
 315         case XPT_SCAN_LUN:
 316                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO,
 317                           ("XPT_SCAN_{BUS,TGT,LUN}\n"));
 318                 mmc_scan_lun(start_ccb->ccb_h.path->periph,
 319                              start_ccb->ccb_h.path, start_ccb->crcn.flags,
 320                              start_ccb);
 321                 break;
 322
 323         case XPT_DEV_ADVINFO:
 324         {
 325                 mmc_dev_advinfo(start_ccb);
 326                 break;
 327         }
 328
 329         default:
 330                 xpt_action_default(start_ccb);
 331                 break;
 332         }
 333 }
 334
 335 static void
 336 mmc_dev_advinfo(union ccb *start_ccb)
 337 {
 338         struct cam_ed *device;
 339         struct ccb_dev_advinfo *cdai;
 340         off_t amt;
 341
 342         start_ccb->ccb_h.status = CAM_REQ_INVALID;
 343         device = start_ccb->ccb_h.path->device;
 344         cdai = &start_ccb->cdai;
 345         CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE,
 346                   ("%s: request %x\n", __func__, cdai->buftype));
 347
 348         /* We don't support writing any data */
 349         if (cdai->flags & CDAI_FLAG_STORE)
 350                 panic("Attempt to store data?!");
 351
 352         switch(cdai->buftype) {
 353         case CDAI_TYPE_SCSI_DEVID:
 354                 cdai->provsiz = device->device_id_len;
 355                 if (device->device_id_len == 0)
 356                         break;
 357                 amt = MIN(cdai->provsiz, cdai->bufsiz);
 358                 memcpy(cdai->buf, device->device_id, amt);
 359                 break;
 360         case CDAI_TYPE_SERIAL_NUM:
 361                 cdai->provsiz = device->serial_num_len;
 362                 if (device->serial_num_len == 0)
 363                         break;
 364                 amt = MIN(cdai->provsiz, cdai->bufsiz);
 365                 memcpy(cdai->buf, device->serial_num, amt);
 366                 break;
 367         case CDAI_TYPE_PHYS_PATH: /* pass(4) wants this */
 368                 cdai->provsiz = 0;
 369                 break;
 370         default:
 371                 panic("Unknown buftype");
 372                 return;
 373         }
 374         start_ccb->ccb_h.status = CAM_REQ_CMP;
 375 }
 376
 377 static void
 378 mmc_announce_periph(struct cam_periph *periph)
 379 {
 380         struct  ccb_pathinq cpi;
 381         struct  ccb_trans_settings cts;
 382         struct  cam_path *path = periph->path;
 383
 384         cam_periph_assert(periph, MA_OWNED);
 385
 386         CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
 387                   ("mmc_announce_periph: called\n"));
 388
 389         xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL);
 390         cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
 391         cts.type = CTS_TYPE_CURRENT_SETTINGS;
 392         xpt_action((union ccb*)&cts);
 393         if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
 394                 return;
 395         xpt_setup_ccb(&cpi.ccb_h, path, CAM_PRIORITY_NORMAL);
 396         cpi.ccb_h.func_code = XPT_PATH_INQ;
 397         xpt_action((union ccb *)&cpi);
 398         printf("XPT info: CLK %04X, ...\n", cts.proto_specific.mmc.ios.clock);
 399 }
 400
 401 /* This func is called per attached device :-( */
 402 void
 403 mmc_print_ident(struct mmc_params *ident_data)
 404 {
 405         printf("Relative addr: %08x\n", ident_data->card_rca);
 406         printf("Card features: <");
 407         if (ident_data->card_features & CARD_FEATURE_MMC)
 408                 printf("MMC ");
 409         if (ident_data->card_features & CARD_FEATURE_MEMORY)
 410                 printf("Memory ");
 411         if (ident_data->card_features & CARD_FEATURE_SDHC)
 412                 printf("High-Capacity ");
 413         if (ident_data->card_features & CARD_FEATURE_SD20)
 414                 printf("SD2.0-Conditions ");
 415         if (ident_data->card_features & CARD_FEATURE_SDIO)
 416                 printf("SDIO ");
 417         printf(">\n");
 418
 419         if (ident_data->card_features & CARD_FEATURE_MEMORY)
 420                 printf("Card memory OCR: %08x\n", ident_data->card_ocr);
 421
 422         if (ident_data->card_features & CARD_FEATURE_SDIO) {
 423                 printf("Card IO OCR: %08x\n", ident_data->io_ocr);
 424                 printf("Number of funcitions: %u\n", ident_data->sdio_func_count);
 425         }
 426 }
 427
 428 static void
 429 mmc_proto_announce(struct cam_ed *device)
 430 {
 431         mmc_print_ident(&device->mmc_ident_data);
 432 }
 433
 434 static void
 435 mmc_proto_denounce(struct cam_ed *device)
 436 {
 437         mmc_print_ident(&device->mmc_ident_data);
 438 }
 439
 440 static void
 441 mmc_proto_debug_out(union ccb *ccb)
 442 {
 443         if (ccb->ccb_h.func_code != XPT_MMC_IO)
 444                 return;
 445
 446         CAM_DEBUG(ccb->ccb_h.path,
 447             CAM_DEBUG_CDB,("mmc_proto_debug_out\n"));
 448 }
 449
 450 static periph_init_t probe_periph_init;
 451
 452 static struct periph_driver probe_driver =
 453 {
 454         probe_periph_init, "mmcprobe",
 455         TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0,
 456         CAM_PERIPH_DRV_EARLY
 457 };
 458
 459 PERIPHDRIVER_DECLARE(mmcprobe, probe_driver);
 460
 461 #define CARD_ID_FREQUENCY 400000 /* Spec requires 400kHz max during ID phase. */
 462
 463 static void
 464 probe_periph_init()
 465 {
 466 }
 467
 468 static cam_status
 469 mmcprobe_register(struct cam_periph *periph, void *arg)
 470 {
 471         union ccb *request_ccb; /* CCB representing the probe request */
 472         cam_status status;
 473         mmcprobe_softc *softc;
 474
 475         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("mmcprobe_register\n"));
 476
 477         request_ccb = (union ccb *)arg;
 478         if (request_ccb == NULL) {
 479                 printf("mmcprobe_register: no probe CCB, "
 480                        "can't register device\n");
 481                 return(CAM_REQ_CMP_ERR);
 482         }
 483
 484         softc = (mmcprobe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT);
 485
 486         if (softc == NULL) {
 487                 printf("proberegister: Unable to probe new device. "
 488                        "Unable to allocate softc\n");
 489                 return(CAM_REQ_CMP_ERR);
 490         }
 491
 492         softc->flags = 0;
 493         softc->acmd41_count = 0;
 494         periph->softc = softc;
 495         softc->periph = periph;
 496         softc->action = PROBE_INVALID;
 497         softc->restart = 0;
 498         status = cam_periph_acquire(periph);
 499
 500         memset(&periph->path->device->mmc_ident_data, 0, sizeof(struct mmc_params));
 501         if (status != CAM_REQ_CMP) {
 502                 printf("proberegister: cam_periph_acquire failed (status=%d)\n",
 503                         status);
 504                 return (status);
 505         }
 506         CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n"));
 507
 508         if (periph->path->device->flags & CAM_DEV_UNCONFIGURED)
 509                 PROBE_SET_ACTION(softc, PROBE_RESET);
 510         else
 511                 PROBE_SET_ACTION(softc, PROBE_IDENTIFY);
 512
 513         /* This will kick the ball */
 514         xpt_schedule(periph, CAM_PRIORITY_XPT);
 515
 516         return(CAM_REQ_CMP);
 517 }
 518
 519 static int
 520 mmc_highest_voltage(uint32_t ocr)
 521 {
 522         int i;
 523
 524         for (i = MMC_OCR_MAX_VOLTAGE_SHIFT;
 525             i >= MMC_OCR_MIN_VOLTAGE_SHIFT; i--)
 526                 if (ocr & (1 << i))
 527                         return (i);
 528         return (-1);
 529 }
 530
 531 static inline void
 532 init_standard_ccb(union ccb *ccb, uint32_t cmd)
 533 {
 534         ccb->ccb_h.func_code = cmd;
 535         ccb->ccb_h.flags = CAM_DIR_OUT;
 536         ccb->ccb_h.retry_count = 0;
 537         ccb->ccb_h.timeout = 15 * 1000;
 538         ccb->ccb_h.cbfcnp = mmcprobe_done;
 539 }
 540
 541 static void
 542 mmcprobe_start(struct cam_periph *periph, union ccb *start_ccb)
 543 {
 544         mmcprobe_softc *softc;
 545         struct cam_path *path;
 546         struct ccb_mmcio *mmcio;
 547         struct mtx *p_mtx = cam_periph_mtx(periph);
 548         struct ccb_trans_settings_mmc *cts;
 549
 550         CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("mmcprobe_start\n"));
 551         softc = (mmcprobe_softc *)periph->softc;
 552         path = start_ccb->ccb_h.path;
 553         mmcio = &start_ccb->mmcio;
 554         cts = &start_ccb->cts.proto_specific.mmc;
 555         struct mmc_params *mmcp = &path->device->mmc_ident_data;
 556
 557         memset(&mmcio->cmd, 0, sizeof(struct mmc_command));
 558
 559         if (softc->restart) {
 560                 softc->restart = 0;
 561                 if (path->device->flags & CAM_DEV_UNCONFIGURED)
 562                         softc->action = PROBE_RESET;
 563                 else
 564                         softc->action = PROBE_IDENTIFY;
 565
 566         }
 567
 568         /* Here is the place where the identify fun begins */
 569         switch (softc->action) {
 570         case PROBE_RESET:
 571                 /* FALLTHROUGH */
 572         case PROBE_IDENTIFY:
 573                 init_standard_ccb(start_ccb, XPT_PATH_INQ);
 574                 xpt_action(start_ccb);
 575
 576                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("Start with PROBE_RESET\n"));
 577                 init_standard_ccb(start_ccb, XPT_SET_TRAN_SETTINGS);
 578                 cts->ios.power_mode = power_off;
 579                 cts->ios_valid = MMC_PM;
 580                 xpt_action(start_ccb);
 581                 mtx_sleep(periph, p_mtx, 0, "mmcios", 100);
 582
 583                 /* mmc_power_up */
 584                 /* Get the host OCR */
 585                 init_standard_ccb(start_ccb, XPT_GET_TRAN_SETTINGS);
 586                 xpt_action(start_ccb);
 587
 588                 uint32_t hv = mmc_highest_voltage(cts->host_ocr);
 589                 init_standard_ccb(start_ccb, XPT_SET_TRAN_SETTINGS);
 590                 cts->ios.vdd = hv;
 591                 cts->ios.bus_mode = opendrain;
 592                 cts->ios.chip_select = cs_dontcare;
 593                 cts->ios.power_mode = power_up;
 594                 cts->ios.bus_width = bus_width_1;
 595                 cts->ios.clock = 0;
 596                 cts->ios_valid = MMC_VDD | MMC_PM | MMC_BM |
 597                         MMC_CS | MMC_BW | MMC_CLK;
 598                 xpt_action(start_ccb);
 599                 mtx_sleep(periph, p_mtx, 0, "mmcios", 100);
 600
 601                 init_standard_ccb(start_ccb, XPT_SET_TRAN_SETTINGS);
 602                 cts->ios.power_mode = power_on;
 603                 cts->ios.clock = CARD_ID_FREQUENCY;
 604                 cts->ios.timing = bus_timing_normal;
 605                 cts->ios_valid = MMC_PM | MMC_CLK | MMC_BT;
 606                 xpt_action(start_ccb);
 607                 mtx_sleep(periph, p_mtx, 0, "mmcios", 100);
 608                 /* End for mmc_power_on */
 609
 610                 /* Begin mmc_idle_cards() */
 611                 init_standard_ccb(start_ccb, XPT_SET_TRAN_SETTINGS);
 612                 cts->ios.chip_select = cs_high;
 613                 cts->ios_valid = MMC_CS;
 614                 xpt_action(start_ccb);
 615                 mtx_sleep(periph, p_mtx, 0, "mmcios", 1);
 616
 617                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("Send first XPT_MMC_IO\n"));
 618                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 619                 mmcio->cmd.opcode = MMC_GO_IDLE_STATE; /* CMD 0 */
 620                 mmcio->cmd.arg = 0;
 621                 mmcio->cmd.flags = MMC_RSP_NONE | MMC_CMD_BC;
 622                 mmcio->cmd.data = NULL;
 623                 mmcio->stop.opcode = 0;
 624
 625                 /* XXX Reset I/O portion as well */
 626                 break;
 627         case PROBE_SDIO_RESET:
 628                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 629                           ("Start with PROBE_SDIO_RESET\n"));
 630                 uint32_t mmc_arg = SD_IO_RW_ADR(SD_IO_CCCR_CTL)
 631                         | SD_IO_RW_DAT(CCCR_CTL_RES) | SD_IO_RW_WR | SD_IO_RW_RAW;
 632                 cam_fill_mmcio(&start_ccb->mmcio,
 633                                /*retries*/ 0,
 634                                /*cbfcnp*/ mmcprobe_done,
 635                                /*flags*/ CAM_DIR_NONE,
 636                                /*mmc_opcode*/ SD_IO_RW_DIRECT,
 637                                /*mmc_arg*/ mmc_arg,
 638                                /*mmc_flags*/ MMC_RSP_R5 | MMC_CMD_AC,
 639                                /*mmc_data*/ NULL,
 640                                /*timeout*/ 1000);
 641                 break;
 642         case PROBE_SEND_IF_COND:
 643                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 644                           ("Start with PROBE_SEND_IF_COND\n"));
 645                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 646                 mmcio->cmd.opcode = SD_SEND_IF_COND; /* CMD 8 */
 647                 mmcio->cmd.arg = (1 << 8) + 0xAA;
 648                 mmcio->cmd.flags = MMC_RSP_R7 | MMC_CMD_BCR;
 649                 mmcio->stop.opcode = 0;
 650                 break;
 651
 652         case PROBE_SDIO_INIT:
 653                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 654                           ("Start with PROBE_SDIO_INIT\n"));
 655                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 656                 mmcio->cmd.opcode = IO_SEND_OP_COND; /* CMD 5 */
 657                 mmcio->cmd.arg = mmcp->io_ocr;
 658                 mmcio->cmd.flags = MMC_RSP_R4;
 659                 mmcio->stop.opcode = 0;
 660                 break;
 661
 662         case PROBE_MMC_INIT:
 663                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 664                           ("Start with PROBE_MMC_INIT\n"));
 665                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 666                 mmcio->cmd.opcode = MMC_SEND_OP_COND; /* CMD 1 */
 667                 mmcio->cmd.arg = MMC_OCR_CCS | mmcp->card_ocr; /* CCS + ocr */;
 668                 mmcio->cmd.flags = MMC_RSP_R3 | MMC_CMD_BCR;
 669                 mmcio->stop.opcode = 0;
 670                 break;
 671
 672         case PROBE_SEND_APP_OP_COND:
 673                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 674                 if (softc->flags & PROBE_FLAG_ACMD_SENT) {
 675                         mmcio->cmd.opcode = ACMD_SD_SEND_OP_COND; /* CMD 41 */
 676                         /*
 677                          * We set CCS bit because we do support SDHC cards.
 678                          * XXX: Don't set CCS if no response to CMD8.
 679                          */
 680                         uint32_t cmd_arg = MMC_OCR_CCS | mmcp->card_ocr; /* CCS + ocr */
 681                         if (softc->acmd41_count < 10 && mmcp->card_ocr != 0 )
 682                                 cmd_arg |= MMC_OCR_S18R;
 683                         mmcio->cmd.arg = cmd_arg;
 684                         mmcio->cmd.flags = MMC_RSP_R3 | MMC_CMD_BCR;
 685                         softc->acmd41_count++;
 686                 } else {
 687                         mmcio->cmd.opcode = MMC_APP_CMD; /* CMD 55 */
 688                         mmcio->cmd.arg = 0; /* rca << 16 */
 689                         mmcio->cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
 690                 }
 691                 mmcio->stop.opcode = 0;
 692                 break;
 693
 694         case PROBE_GET_CID: /* XXX move to mmc_da */
 695                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 696                 mmcio->cmd.opcode = MMC_ALL_SEND_CID;
 697                 mmcio->cmd.arg = 0;
 698                 mmcio->cmd.flags = MMC_RSP_R2 | MMC_CMD_BCR;
 699                 mmcio->stop.opcode = 0;
 700                 break;
 701
 702         case PROBE_SEND_RELATIVE_ADDR:
 703                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 704                 mmcio->cmd.opcode = SD_SEND_RELATIVE_ADDR;
 705                 mmcio->cmd.arg = 0;
 706                 mmcio->cmd.flags = MMC_RSP_R6 | MMC_CMD_BCR;
 707                 mmcio->stop.opcode = 0;
 708                 break;
 709         case PROBE_SELECT_CARD:
 710                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 711                 mmcio->cmd.opcode = MMC_SELECT_CARD;
 712                 mmcio->cmd.arg = (uint32_t)path->device->mmc_ident_data.card_rca << 16;
 713                 mmcio->cmd.flags = MMC_RSP_R1B | MMC_CMD_AC;
 714                 mmcio->stop.opcode = 0;
 715                 break;
 716         case PROBE_GET_CSD: /* XXX move to mmc_da */
 717                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 718                 mmcio->cmd.opcode = MMC_SEND_CSD;
 719                 mmcio->cmd.arg = (uint32_t)path->device->mmc_ident_data.card_rca << 16;
 720                 mmcio->cmd.flags = MMC_RSP_R2 | MMC_CMD_BCR;
 721                 mmcio->stop.opcode = 0;
 722                 break;
 723         case PROBE_DONE:
 724                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("Start with PROBE_DONE\n"));
 725                 init_standard_ccb(start_ccb, XPT_SET_TRAN_SETTINGS);
 726                 cts->ios.bus_mode = pushpull;
 727                 cts->ios_valid = MMC_BM;
 728                 xpt_action(start_ccb);
 729                 return;
 730                 /* NOTREACHED */
 731                 break;
 732         case PROBE_INVALID:
 733                 break;
 734         default:
 735                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("probestart: invalid action state 0x%x\n", softc->action));
 736                 panic("default: case in mmc_probe_start()");
 737         }
 738
 739         start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
 740         xpt_action(start_ccb);
 741 }
 742
 743 static void mmcprobe_cleanup(struct cam_periph *periph)
 744 {
 745         free(periph->softc, M_CAMXPT);
 746 }
 747
 748 static void
 749 mmcprobe_done(struct cam_periph *periph, union ccb *done_ccb)
 750 {
 751         mmcprobe_softc *softc;
 752         struct cam_path *path;
 753
 754         int err;
 755         struct ccb_mmcio *mmcio;
 756         u_int32_t  priority;
 757
 758         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("mmcprobe_done\n"));
 759         softc = (mmcprobe_softc *)periph->softc;
 760         path = done_ccb->ccb_h.path;
 761         priority = done_ccb->ccb_h.pinfo.priority;
 762
 763         switch (softc->action) {
 764         case PROBE_RESET:
 765                 /* FALLTHROUGH */
 766         case PROBE_IDENTIFY:
 767         {
 768                 printf("Starting completion of PROBE_RESET\n");
 769                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("done with PROBE_RESET\n"));
 770                 mmcio = &done_ccb->mmcio;
 771                 err = mmcio->cmd.error;
 772
 773                 if (err != MMC_ERR_NONE) {
 774                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 775                                   ("GO_IDLE_STATE failed with error %d\n",
 776                                    err));
 777
 778                         /* There was a device there, but now it's gone... */
 779                         if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) {
 780                                 xpt_async(AC_LOST_DEVICE, path, NULL);
 781                         }
 782                         PROBE_SET_ACTION(softc, PROBE_INVALID);
 783                         break;
 784                 }
 785                 path->device->protocol = PROTO_MMCSD;
 786                 PROBE_SET_ACTION(softc, PROBE_SEND_IF_COND);
 787                 break;
 788         }
 789         case PROBE_SEND_IF_COND:
 790         {
 791                 mmcio = &done_ccb->mmcio;
 792                 err = mmcio->cmd.error;
 793                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
 794
 795                 if (err != MMC_ERR_NONE || mmcio->cmd.resp[0] != 0x1AA) {
 796                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 797                                   ("IF_COND: error %d, pattern %08x\n",
 798                                    err, mmcio->cmd.resp[0]));
 799                 } else {
 800                         mmcp->card_features |= CARD_FEATURE_SD20;
 801                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 802                                   ("SD 2.0 interface conditions: OK\n"));
 803
 804                 }
 805                 PROBE_SET_ACTION(softc, PROBE_SDIO_RESET);
 806                 break;
 807         }
 808         case PROBE_SDIO_RESET:
 809         {
 810                 mmcio = &done_ccb->mmcio;
 811                 err = mmcio->cmd.error;
 812
 813                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 814                           ("SDIO_RESET: error %d, CCCR CTL register: %08x\n",
 815                            err, mmcio->cmd.resp[0]));
 816                 PROBE_SET_ACTION(softc, PROBE_SDIO_INIT);
 817                 break;
 818         }
 819         case PROBE_SDIO_INIT:
 820         {
 821                 mmcio = &done_ccb->mmcio;
 822                 err = mmcio->cmd.error;
 823                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
 824
 825                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 826                           ("SDIO_INIT: error %d, %08x %08x %08x %08x\n",
 827                            err, mmcio->cmd.resp[0],
 828                            mmcio->cmd.resp[1],
 829                            mmcio->cmd.resp[2],
 830                            mmcio->cmd.resp[3]));
 831
 832                 /*
 833                  * Error here means that this card is not SDIO,
 834                  * so proceed with memory init as if nothing has happened
 835                  */
 836                 if (err != MMC_ERR_NONE) {
 837                         PROBE_SET_ACTION(softc, PROBE_SEND_APP_OP_COND);
 838                         break;
 839                 }
 840                 mmcp->card_features |= CARD_FEATURE_SDIO;
 841                 uint32_t ioifcond = mmcio->cmd.resp[0];
 842                 uint32_t io_ocr = ioifcond & R4_IO_OCR_MASK;
 843
 844                 mmcp->sdio_func_count = R4_IO_NUM_FUNCTIONS(ioifcond);
 845                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 846                           ("SDIO card: %d functions\n", mmcp->sdio_func_count));
 847                 if (io_ocr == 0) {
 848                     CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 849                               ("SDIO OCR invalid?!\n"));
 850                     break; /* Retry */
 851                 }
 852
 853                 if (io_ocr != 0 && mmcp->io_ocr == 0) {
 854                         mmcp->io_ocr = io_ocr;
 855                         break; /* Retry, this time with non-0 OCR */
 856                 }
 857                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 858                           ("SDIO OCR: %08x\n", mmcp->io_ocr));
 859
 860                 if (ioifcond & R4_IO_MEM_PRESENT) {
 861                         /* Combo card -- proceed to memory initialization */
 862                         PROBE_SET_ACTION(softc, PROBE_SEND_APP_OP_COND);
 863                 } else {
 864                         /* No memory portion -- get RCA and select card */
 865                         PROBE_SET_ACTION(softc, PROBE_SEND_RELATIVE_ADDR);
 866                 }
 867                 break;
 868         }
 869         case PROBE_MMC_INIT:
 870         {
 871                 mmcio = &done_ccb->mmcio;
 872                 err = mmcio->cmd.error;
 873                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
 874
 875                 if (err != MMC_ERR_NONE) {
 876                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 877                                   ("MMC_INIT: error %d, resp %08x\n",
 878                                    err, mmcio->cmd.resp[0]));
 879                         PROBE_SET_ACTION(softc, PROBE_INVALID);
 880                         break;
 881                 }
 882                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 883                           ("MMC card, OCR %08x\n", mmcio->cmd.resp[0]));
 884
 885                 if (mmcp->card_ocr == 0) {
 886                         /* We haven't sent the OCR to the card yet -- do it */
 887                         mmcp->card_ocr = mmcio->cmd.resp[0];
 888                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 889                                   ("-> sending OCR to card\n"));
 890                         break;
 891                 }
 892
 893                 if (!(mmcio->cmd.resp[0] & MMC_OCR_CARD_BUSY)) {
 894                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 895                                   ("Card is still powering up\n"));
 896                         break;
 897                 }
 898
 899                 mmcp->card_features |= CARD_FEATURE_MMC | CARD_FEATURE_MEMORY;
 900                 PROBE_SET_ACTION(softc, PROBE_GET_CID);
 901                 break;
 902         }
 903         case PROBE_SEND_APP_OP_COND:
 904         {
 905                 mmcio = &done_ccb->mmcio;
 906                 err = mmcio->cmd.error;
 907
 908                 if (err != MMC_ERR_NONE) {
 909                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 910                                   ("APP_OP_COND: error %d, resp %08x\n",
 911                                    err, mmcio->cmd.resp[0]));
 912                         PROBE_SET_ACTION(softc, PROBE_MMC_INIT);
 913                         break;
 914                 }
 915
 916                 if (!(softc->flags & PROBE_FLAG_ACMD_SENT)) {
 917                         /* Don't change the state */
 918                         softc->flags |= PROBE_FLAG_ACMD_SENT;
 919                         break;
 920                 }
 921
 922                 softc->flags &= ~PROBE_FLAG_ACMD_SENT;
 923                 if ((mmcio->cmd.resp[0] & MMC_OCR_CARD_BUSY) ||
 924                     (mmcio->cmd.arg & MMC_OCR_VOLTAGE) == 0) {
 925                         struct mmc_params *mmcp = &path->device->mmc_ident_data;
 926                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 927                                   ("Card OCR: %08x\n",  mmcio->cmd.resp[0]));
 928                         if (mmcp->card_ocr == 0) {
 929                                 mmcp->card_ocr = mmcio->cmd.resp[0];
 930                                 /* Now when we know OCR that we want -- send it to card */
 931                                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 932                                           ("-> sending OCR to card\n"));
 933                         } else {
 934                                 /* We already know the OCR and despite of that we
 935                                  * are processing the answer to ACMD41 -> move on
 936                                  */
 937                                 PROBE_SET_ACTION(softc, PROBE_GET_CID);
 938                         }
 939                         /* Getting an answer to ACMD41 means the card has memory */
 940                         mmcp->card_features |= CARD_FEATURE_MEMORY;
 941
 942                         /* Standard capacity vs High Capacity memory card */
 943                         if (mmcio->cmd.resp[0] & MMC_OCR_CCS) {
 944                                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 945                                           ("Card is SDHC\n"));
 946                                 mmcp->card_features |= CARD_FEATURE_SDHC;
 947                         }
 948
 949                         /* Whether the card supports 1.8V signaling */
 950                         if (mmcio->cmd.resp[0] & MMC_OCR_S18A) {
 951                                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 952                                           ("Card supports 1.8V signaling\n"));
 953                                 mmcp->card_features |= CARD_FEATURE_18V;
 954                         }
 955                 } else {
 956                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 957                                   ("Card not ready: %08x\n",  mmcio->cmd.resp[0]));
 958                         /* Send CMD55+ACMD41 once again  */
 959                         PROBE_SET_ACTION(softc, PROBE_SEND_APP_OP_COND);
 960                 }
 961
 962                 break;
 963         }
 964         case PROBE_GET_CID: /* XXX move to mmc_da */
 965         {
 966                 mmcio = &done_ccb->mmcio;
 967                 err = mmcio->cmd.error;
 968
 969                 if (err != MMC_ERR_NONE) {
 970                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 971                                   ("PROBE_GET_CID: error %d\n", err));
 972                         PROBE_SET_ACTION(softc, PROBE_INVALID);
 973                         break;
 974                 }
 975
 976                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
 977                 memcpy(mmcp->card_cid, mmcio->cmd.resp, 4 * sizeof(uint32_t));
 978                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 979                           ("CID %08x%08x%08x%08x\n",
 980                            mmcp->card_cid[0],
 981                            mmcp->card_cid[1],
 982                            mmcp->card_cid[2],
 983                            mmcp->card_cid[3]));
 984                 PROBE_SET_ACTION(softc, PROBE_SEND_RELATIVE_ADDR);
 985                 break;
 986         }
 987         case PROBE_SEND_RELATIVE_ADDR: {
 988                 mmcio = &done_ccb->mmcio;
 989                 err = mmcio->cmd.error;
 990                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
 991                 uint16_t rca = mmcio->cmd.resp[0] >> 16;
 992                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 993                           ("Card published RCA: %u\n", rca));
 994                 path->device->mmc_ident_data.card_rca = rca;
 995                 if (err != MMC_ERR_NONE) {
 996                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 997                                   ("PROBE_SEND_RELATIVE_ADDR: error %d\n", err));
 998                         PROBE_SET_ACTION(softc, PROBE_INVALID);
 999                         break;
1000                 }
1001
1002                 /* If memory is present, get CSD, otherwise select card */
1003                 if (mmcp->card_features & CARD_FEATURE_MEMORY)
1004                         PROBE_SET_ACTION(softc, PROBE_GET_CSD);
1005                 else
1006                         PROBE_SET_ACTION(softc, PROBE_SELECT_CARD);
1007                 break;
1008         }
1009         case PROBE_GET_CSD: {
1010                 mmcio = &done_ccb->mmcio;
1011                 err = mmcio->cmd.error;
1012
1013                 if (err != MMC_ERR_NONE) {
1014                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1015                                   ("PROBE_GET_CSD: error %d\n", err));
1016                         PROBE_SET_ACTION(softc, PROBE_INVALID);
1017                         break;
1018                 }
1019
1020                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
1021                 memcpy(mmcp->card_csd, mmcio->cmd.resp, 4 * sizeof(uint32_t));
1022                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1023                           ("CSD %08x%08x%08x%08x\n",
1024                            mmcp->card_csd[0],
1025                            mmcp->card_csd[1],
1026                            mmcp->card_csd[2],
1027                            mmcp->card_csd[3]));
1028                 PROBE_SET_ACTION(softc, PROBE_SELECT_CARD);
1029                 break;
1030         }
1031         case PROBE_SELECT_CARD: {
1032                 mmcio = &done_ccb->mmcio;
1033                 err = mmcio->cmd.error;
1034                 if (err != MMC_ERR_NONE) {
1035                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1036                                   ("PROBE_SEND_RELATIVE_ADDR: error %d\n", err));
1037                         PROBE_SET_ACTION(softc, PROBE_INVALID);
1038                         break;
1039                 }
1040
1041                 PROBE_SET_ACTION(softc, PROBE_DONE);
1042                 break;
1043         }
1044         default:
1045                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1046                           ("mmc_probedone: invalid action state 0x%x\n", softc->action));
1047                 panic("default: case in mmc_probe_done()");
1048         }
1049
1050         if (softc->action == PROBE_INVALID &&
1051             (path->device->flags & CAM_DEV_UNCONFIGURED) == 0) {
1052                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1053                           ("mmc_probedone: Should send AC_LOST_DEVICE but won't for now\n"));
1054                 //xpt_async(AC_LOST_DEVICE, path, NULL);
1055         }
1056
1057         xpt_release_ccb(done_ccb);
1058         if (softc->action != PROBE_INVALID)
1059                 xpt_schedule(periph, priority);
1060         /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */
1061         int frozen = cam_release_devq(path, 0, 0, 0, FALSE);
1062         printf("mmc_probedone: remaining freezecnt %d\n", frozen);
1063
1064         if (softc->action == PROBE_DONE) {
1065                 /* Notify the system that the device is found! */
1066                 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) {
1067                         path->device->flags &= ~CAM_DEV_UNCONFIGURED;
1068                         xpt_acquire_device(path->device);
1069                         done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
1070                         xpt_action(done_ccb);
1071                         xpt_async(AC_FOUND_DEVICE, path, done_ccb);
1072                 }
1073         }
1074         if (softc->action == PROBE_DONE || softc->action == PROBE_INVALID) {
1075                 cam_periph_invalidate(periph);
1076                 cam_periph_release_locked(periph);
1077         }
1078 }