sys/cam/mmc/mmc_xpt.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2013,2014 Ilya Bakulin <ilya@bakulin.de>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer,
  12  *    without modification, immediately at the beginning of the file.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include <sys/cdefs.h>
  30 __FBSDID("$FreeBSD$");
  31
  32 #include <sys/param.h>
  33 #include <sys/bus.h>
  34 #include <sys/endian.h>
  35 #include <sys/systm.h>
  36 #include <sys/types.h>
  37 #include <sys/malloc.h>
  38 #include <sys/kernel.h>
  39 #include <sys/time.h>
  40 #include <sys/conf.h>
  41 #include <sys/fcntl.h>
  42 #include <sys/interrupt.h>
  43 #include <sys/sbuf.h>
  44
  45 #include <sys/lock.h>
  46 #include <sys/mutex.h>
  47 #include <sys/sysctl.h>
  48 #include <sys/condvar.h>
  49
  50 #include <cam/cam.h>
  51 #include <cam/cam_ccb.h>
  52 #include <cam/cam_queue.h>
  53 #include <cam/cam_periph.h>
  54 #include <cam/cam_sim.h>
  55 #include <cam/cam_xpt.h>
  56 #include <cam/cam_xpt_sim.h>
  57 #include <cam/cam_xpt_periph.h>
  58 #include <cam/cam_xpt_internal.h>
  59 #include <cam/cam_debug.h>
  60
  61 #include <cam/mmc/mmc.h>
  62 #include <cam/mmc/mmc_bus.h>
  63
  64 #include <machine/stdarg.h>     /* for xpt_print below */
  65 #include <machine/_inttypes.h>  /* for PRIu64 */
  66 #include "opt_cam.h"
  67
  68 FEATURE(mmccam, "CAM-based MMC/SD/SDIO stack");
  69
  70 static struct cam_ed * mmc_alloc_device(struct cam_eb *bus,
  71     struct cam_et *target, lun_id_t lun_id);
  72 static void mmc_dev_async(u_int32_t async_code, struct cam_eb *bus,
  73     struct cam_et *target, struct cam_ed *device, void *async_arg);
  74 static void      mmc_action(union ccb *start_ccb);
  75 static void      mmc_dev_advinfo(union ccb *start_ccb);
  76 static void      mmc_announce_periph(struct cam_periph *periph);
  77 static void      mmc_scan_lun(struct cam_periph *periph,
  78     struct cam_path *path, cam_flags flags, union ccb *ccb);
  79
  80 /* mmcprobe methods */
  81 static cam_status mmcprobe_register(struct cam_periph *periph, void *arg);
  82 static void      mmcprobe_start(struct cam_periph *periph, union ccb *start_ccb);
  83 static void      mmcprobe_cleanup(struct cam_periph *periph);
  84 static void      mmcprobe_done(struct cam_periph *periph, union ccb *done_ccb);
  85
  86 static void mmc_proto_announce(struct cam_ed *device);
  87 static void mmc_proto_denounce(struct cam_ed *device);
  88 static void mmc_proto_debug_out(union ccb *ccb);
  89
  90 typedef enum {
  91         PROBE_RESET,
  92         PROBE_IDENTIFY,
  93         PROBE_SDIO_RESET,
  94         PROBE_SEND_IF_COND,
  95         PROBE_SDIO_INIT,
  96         PROBE_MMC_INIT,
  97         PROBE_SEND_APP_OP_COND,
  98         PROBE_GET_CID,
  99         PROBE_GET_CSD,
 100         PROBE_SEND_RELATIVE_ADDR,
 101         PROBE_MMC_SET_RELATIVE_ADDR,
 102         PROBE_SELECT_CARD,
 103         PROBE_DONE,
 104         PROBE_INVALID
 105 } probe_action;
 106
 107 static char *probe_action_text[] = {
 108         "PROBE_RESET",
 109         "PROBE_IDENTIFY",
 110         "PROBE_SDIO_RESET",
 111         "PROBE_SEND_IF_COND",
 112         "PROBE_SDIO_INIT",
 113         "PROBE_MMC_INIT",
 114         "PROBE_SEND_APP_OP_COND",
 115         "PROBE_GET_CID",
 116         "PROBE_GET_CSD",
 117         "PROBE_SEND_RELATIVE_ADDR",
 118         "PROBE_MMC_SET_RELATIVE_ADDR",
 119         "PROBE_SELECT_CARD",
 120         "PROBE_DONE",
 121         "PROBE_INVALID"
 122 };
 123
 124 #define PROBE_SET_ACTION(softc, newaction)      \
 125 do {                                                                    \
 126         char **text;                                                    \
 127         text = probe_action_text;                                       \
 128         CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE,               \
 129             ("Probe %s to %s\n", text[(softc)->action],                 \
 130             text[(newaction)]));                                        \
 131         (softc)->action = (newaction);                                  \
 132 } while(0)
 133
 134 static struct xpt_xport_ops mmc_xport_ops = {
 135         .alloc_device = mmc_alloc_device,
 136         .action = mmc_action,
 137         .async = mmc_dev_async,
 138         .announce = mmc_announce_periph,
 139 };
 140
 141 #define MMC_XPT_XPORT(x, X)                             \
 142         static struct xpt_xport mmc_xport_ ## x = {     \
 143                 .xport = XPORT_ ## X,                   \
 144                 .name = #x,                             \
 145                 .ops = &mmc_xport_ops,                  \
 146         };                                              \
 147         CAM_XPT_XPORT(mmc_xport_ ## x);
 148
 149 MMC_XPT_XPORT(mmc, MMCSD);
 150
 151 static struct xpt_proto_ops mmc_proto_ops = {
 152         .announce = mmc_proto_announce,
 153         .denounce = mmc_proto_denounce,
 154         .debug_out = mmc_proto_debug_out,
 155 };
 156
 157 static struct xpt_proto mmc_proto = {
 158         .proto = PROTO_MMCSD,
 159         .name = "mmcsd",
 160         .ops = &mmc_proto_ops,
 161 };
 162 CAM_XPT_PROTO(mmc_proto);
 163
 164 typedef struct {
 165         probe_action    action;
 166         int             restart;
 167         union ccb       saved_ccb;
 168         uint32_t        flags;
 169 #define PROBE_FLAG_ACMD_SENT    0x1 /* CMD55 is sent, card expects ACMD */
 170         uint8_t         acmd41_count; /* how many times ACMD41 has been issued */
 171         struct cam_periph *periph;
 172 } mmcprobe_softc;
 173
 174 /* XPort functions -- an interface to CAM at periph side */
 175
 176 static struct cam_ed *
 177 mmc_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id)
 178 {
 179         struct cam_ed *device;
 180
 181         printf("mmc_alloc_device()\n");
 182         device = xpt_alloc_device(bus, target, lun_id);
 183         if (device == NULL)
 184                 return (NULL);
 185
 186         device->quirk = NULL;
 187         device->mintags = 0;
 188         device->maxtags = 0;
 189         bzero(&device->inq_data, sizeof(device->inq_data));
 190         device->inq_flags = 0;
 191         device->queue_flags = 0;
 192         device->serial_num = NULL;
 193         device->serial_num_len = 0;
 194         return (device);
 195 }
 196
 197 static void
 198 mmc_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target,
 199               struct cam_ed *device, void *async_arg)
 200 {
 201
 202         printf("mmc_dev_async(async_code=0x%x, path_id=%d, target_id=%x, lun_id=%" SCNx64 "\n",
 203                async_code,
 204                bus->path_id,
 205                target->target_id,
 206                device->lun_id);
 207         /*
 208          * We only need to handle events for real devices.
 209          */
 210         if (target->target_id == CAM_TARGET_WILDCARD
 211             || device->lun_id == CAM_LUN_WILDCARD)
 212                 return;
 213
 214         if (async_code == AC_LOST_DEVICE) {
 215                 if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) {
 216                         printf("AC_LOST_DEVICE -> set to unconfigured\n");
 217                         device->flags |= CAM_DEV_UNCONFIGURED;
 218                         xpt_release_device(device);
 219                 } else {
 220                         printf("AC_LOST_DEVICE on unconfigured device\n");
 221                 }
 222         } else if (async_code == AC_FOUND_DEVICE) {
 223                 printf("Got AC_FOUND_DEVICE -- whatever...\n");
 224         } else if (async_code == AC_PATH_REGISTERED) {
 225                 printf("Got AC_PATH_REGISTERED -- whatever...\n");
 226         } else if (async_code == AC_PATH_DEREGISTERED ) {
 227                         printf("Got AC_PATH_DEREGISTERED -- whatever...\n");
 228         } else if (async_code == AC_UNIT_ATTENTION) {
 229                 printf("Got interrupt generated by the card and ignored it\n");
 230         } else
 231                 panic("Unknown async code\n");
 232 }
 233
 234 /* Taken from nvme_scan_lun, thanks to bsdimp@ */
 235 static void
 236 mmc_scan_lun(struct cam_periph *periph, struct cam_path *path,
 237              cam_flags flags, union ccb *request_ccb)
 238 {
 239         struct ccb_pathinq cpi;
 240         cam_status status;
 241         struct cam_periph *old_periph;
 242         int lock;
 243
 244         CAM_DEBUG(path, CAM_DEBUG_TRACE, ("mmc_scan_lun\n"));
 245
 246         xpt_path_inq(&cpi, path);
 247
 248         if (cpi.ccb_h.status != CAM_REQ_CMP) {
 249                 if (request_ccb != NULL) {
 250                         request_ccb->ccb_h.status = cpi.ccb_h.status;
 251                         xpt_done(request_ccb);
 252                 }
 253                 return;
 254         }
 255
 256         if (xpt_path_lun_id(path) == CAM_LUN_WILDCARD) {
 257                 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("mmd_scan_lun ignoring bus\n"));
 258                 request_ccb->ccb_h.status = CAM_REQ_CMP;        /* XXX signal error ? */
 259                 xpt_done(request_ccb);
 260                 return;
 261         }
 262
 263         lock = (xpt_path_owned(path) == 0);
 264         if (lock)
 265                 xpt_path_lock(path);
 266
 267         if ((old_periph = cam_periph_find(path, "mmcprobe")) != NULL) {
 268                 if ((old_periph->flags & CAM_PERIPH_INVALID) == 0) {
 269 //                      mmcprobe_softc *softc;
 270 //                      softc = (mmcprobe_softc *)old_periph->softc;
 271 //                      Not sure if we need request ccb queue for mmc
 272 //                      TAILQ_INSERT_TAIL(&softc->request_ccbs,
 273 //                              &request_ccb->ccb_h, periph_links.tqe);
 274 //                      softc->restart = 1;
 275                         CAM_DEBUG(path, CAM_DEBUG_INFO,
 276                                   ("Got scan request, but mmcprobe already exists\n"));
 277                         request_ccb->ccb_h.status = CAM_REQ_CMP_ERR;
 278                         xpt_done(request_ccb);
 279                 } else {
 280                         request_ccb->ccb_h.status = CAM_REQ_CMP_ERR;
 281                         xpt_done(request_ccb);
 282                 }
 283         } else {
 284                 xpt_print(path, " Set up the mmcprobe device...\n");
 285
 286                 status = cam_periph_alloc(mmcprobe_register, NULL,
 287                                           mmcprobe_cleanup,
 288                                           mmcprobe_start,
 289                                           "mmcprobe",
 290                                           CAM_PERIPH_BIO,
 291                                           path, NULL, 0,
 292                                           request_ccb);
 293                 if (status != CAM_REQ_CMP) {
 294                         xpt_print(path, "xpt_scan_lun: cam_alloc_periph "
 295                                   "returned an error, can't continue probe\n");
 296                 }
 297                 request_ccb->ccb_h.status = status;
 298                 xpt_done(request_ccb);
 299         }
 300
 301         if (lock)
 302                 xpt_path_unlock(path);
 303 }
 304
 305 static void
 306 mmc_action(union ccb *start_ccb)
 307 {
 308         CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE,
 309                   ("mmc_action! func_code=%x, action %s\n", start_ccb->ccb_h.func_code,
 310                    xpt_action_name(start_ccb->ccb_h.func_code)));
 311         switch (start_ccb->ccb_h.func_code) {
 312
 313         case XPT_SCAN_BUS:
 314                 /* FALLTHROUGH */
 315         case XPT_SCAN_TGT:
 316                 /* FALLTHROUGH */
 317         case XPT_SCAN_LUN:
 318                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO,
 319                           ("XPT_SCAN_{BUS,TGT,LUN}\n"));
 320                 mmc_scan_lun(start_ccb->ccb_h.path->periph,
 321                              start_ccb->ccb_h.path, start_ccb->crcn.flags,
 322                              start_ccb);
 323                 break;
 324
 325         case XPT_DEV_ADVINFO:
 326         {
 327                 mmc_dev_advinfo(start_ccb);
 328                 break;
 329         }
 330
 331         default:
 332                 xpt_action_default(start_ccb);
 333                 break;
 334         }
 335 }
 336
 337 static void
 338 mmc_dev_advinfo(union ccb *start_ccb)
 339 {
 340         struct cam_ed *device;
 341         struct ccb_dev_advinfo *cdai;
 342         off_t amt;
 343
 344         start_ccb->ccb_h.status = CAM_REQ_INVALID;
 345         device = start_ccb->ccb_h.path->device;
 346         cdai = &start_ccb->cdai;
 347         CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_TRACE,
 348                   ("%s: request %x\n", __func__, cdai->buftype));
 349
 350         /* We don't support writing any data */
 351         if (cdai->flags & CDAI_FLAG_STORE)
 352                 panic("Attempt to store data?!");
 353
 354         switch(cdai->buftype) {
 355         case CDAI_TYPE_SCSI_DEVID:
 356                 cdai->provsiz = device->device_id_len;
 357                 if (device->device_id_len == 0)
 358                         break;
 359                 amt = MIN(cdai->provsiz, cdai->bufsiz);
 360                 memcpy(cdai->buf, device->device_id, amt);
 361                 break;
 362         case CDAI_TYPE_SERIAL_NUM:
 363                 cdai->provsiz = device->serial_num_len;
 364                 if (device->serial_num_len == 0)
 365                         break;
 366                 amt = MIN(cdai->provsiz, cdai->bufsiz);
 367                 memcpy(cdai->buf, device->serial_num, amt);
 368                 break;
 369         case CDAI_TYPE_PHYS_PATH: /* pass(4) wants this */
 370                 cdai->provsiz = 0;
 371                 break;
 372         case CDAI_TYPE_MMC_PARAMS:
 373                 cdai->provsiz = sizeof(struct mmc_params);
 374                 amt = MIN(cdai->provsiz, cdai->bufsiz);
 375                 memcpy(cdai->buf, &device->mmc_ident_data, amt);
 376                 break;
 377         default:
 378                 panic("Unknown buftype");
 379                 return;
 380         }
 381         start_ccb->ccb_h.status = CAM_REQ_CMP;
 382 }
 383
 384 static void
 385 mmc_announce_periph(struct cam_periph *periph)
 386 {
 387         struct  ccb_pathinq cpi;
 388         struct  ccb_trans_settings cts;
 389         struct  cam_path *path = periph->path;
 390
 391         cam_periph_assert(periph, MA_OWNED);
 392
 393         CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
 394                   ("mmc_announce_periph: called\n"));
 395
 396         xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL);
 397         cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
 398         cts.type = CTS_TYPE_CURRENT_SETTINGS;
 399         xpt_action((union ccb*)&cts);
 400         if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
 401                 return;
 402         xpt_path_inq(&cpi, periph->path);
 403         printf("XPT info: CLK %04X, ...\n", cts.proto_specific.mmc.ios.clock);
 404 }
 405
 406 /* This func is called per attached device :-( */
 407 void
 408 mmc_print_ident(struct mmc_params *ident_data)
 409 {
 410         printf("Relative addr: %08x\n", ident_data->card_rca);
 411         printf("Card features: <");
 412         if (ident_data->card_features & CARD_FEATURE_MMC)
 413                 printf("MMC ");
 414         if (ident_data->card_features & CARD_FEATURE_MEMORY)
 415                 printf("Memory ");
 416         if (ident_data->card_features & CARD_FEATURE_SDHC)
 417                 printf("High-Capacity ");
 418         if (ident_data->card_features & CARD_FEATURE_SD20)
 419                 printf("SD2.0-Conditions ");
 420         if (ident_data->card_features & CARD_FEATURE_SDIO)
 421                 printf("SDIO ");
 422         printf(">\n");
 423
 424         if (ident_data->card_features & CARD_FEATURE_MEMORY)
 425                 printf("Card memory OCR: %08x\n", ident_data->card_ocr);
 426
 427         if (ident_data->card_features & CARD_FEATURE_SDIO) {
 428                 printf("Card IO OCR: %08x\n", ident_data->io_ocr);
 429                 printf("Number of funcitions: %u\n", ident_data->sdio_func_count);
 430         }
 431 }
 432
 433 static void
 434 mmc_proto_announce(struct cam_ed *device)
 435 {
 436         mmc_print_ident(&device->mmc_ident_data);
 437 }
 438
 439 static void
 440 mmc_proto_denounce(struct cam_ed *device)
 441 {
 442         mmc_print_ident(&device->mmc_ident_data);
 443 }
 444
 445 static void
 446 mmc_proto_debug_out(union ccb *ccb)
 447 {
 448         if (ccb->ccb_h.func_code != XPT_MMC_IO)
 449                 return;
 450
 451         CAM_DEBUG(ccb->ccb_h.path,
 452             CAM_DEBUG_CDB,("mmc_proto_debug_out\n"));
 453 }
 454
 455 static periph_init_t probe_periph_init;
 456
 457 static struct periph_driver probe_driver =
 458 {
 459         probe_periph_init, "mmcprobe",
 460         TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0,
 461         CAM_PERIPH_DRV_EARLY
 462 };
 463
 464 PERIPHDRIVER_DECLARE(mmcprobe, probe_driver);
 465
 466 #define CARD_ID_FREQUENCY 400000 /* Spec requires 400kHz max during ID phase. */
 467
 468 static void
 469 probe_periph_init()
 470 {
 471 }
 472
 473 static cam_status
 474 mmcprobe_register(struct cam_periph *periph, void *arg)
 475 {
 476         mmcprobe_softc *softc;
 477         union ccb *request_ccb; /* CCB representing the probe request */
 478         int status;
 479
 480         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("mmcprobe_register\n"));
 481
 482         request_ccb = (union ccb *)arg;
 483         if (request_ccb == NULL) {
 484                 printf("mmcprobe_register: no probe CCB, "
 485                        "can't register device\n");
 486                 return(CAM_REQ_CMP_ERR);
 487         }
 488
 489         softc = (mmcprobe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT);
 490
 491         if (softc == NULL) {
 492                 printf("proberegister: Unable to probe new device. "
 493                        "Unable to allocate softc\n");
 494                 return(CAM_REQ_CMP_ERR);
 495         }
 496
 497         softc->flags = 0;
 498         softc->acmd41_count = 0;
 499         periph->softc = softc;
 500         softc->periph = periph;
 501         softc->action = PROBE_INVALID;
 502         softc->restart = 0;
 503         status = cam_periph_acquire(periph);
 504
 505         memset(&periph->path->device->mmc_ident_data, 0, sizeof(struct mmc_params));
 506         if (status != 0) {
 507                 printf("proberegister: cam_periph_acquire failed (status=%d)\n",
 508                         status);
 509                 return (CAM_REQ_CMP_ERR);
 510         }
 511         CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n"));
 512
 513         if (periph->path->device->flags & CAM_DEV_UNCONFIGURED)
 514                 PROBE_SET_ACTION(softc, PROBE_RESET);
 515         else
 516                 PROBE_SET_ACTION(softc, PROBE_IDENTIFY);
 517
 518         /* This will kick the ball */
 519         xpt_schedule(periph, CAM_PRIORITY_XPT);
 520
 521         return(CAM_REQ_CMP);
 522 }
 523
 524 static int
 525 mmc_highest_voltage(uint32_t ocr)
 526 {
 527         int i;
 528
 529         for (i = MMC_OCR_MAX_VOLTAGE_SHIFT;
 530             i >= MMC_OCR_MIN_VOLTAGE_SHIFT; i--)
 531                 if (ocr & (1 << i))
 532                         return (i);
 533         return (-1);
 534 }
 535
 536 static inline void
 537 init_standard_ccb(union ccb *ccb, uint32_t cmd)
 538 {
 539         ccb->ccb_h.func_code = cmd;
 540         ccb->ccb_h.flags = CAM_DIR_OUT;
 541         ccb->ccb_h.retry_count = 0;
 542         ccb->ccb_h.timeout = 15 * 1000;
 543         ccb->ccb_h.cbfcnp = mmcprobe_done;
 544 }
 545
 546 static void
 547 mmcprobe_start(struct cam_periph *periph, union ccb *start_ccb)
 548 {
 549         mmcprobe_softc *softc;
 550         struct cam_path *path;
 551         struct ccb_mmcio *mmcio;
 552         struct mtx *p_mtx = cam_periph_mtx(periph);
 553         struct ccb_trans_settings_mmc *cts;
 554
 555         CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("mmcprobe_start\n"));
 556         softc = (mmcprobe_softc *)periph->softc;
 557         path = start_ccb->ccb_h.path;
 558         mmcio = &start_ccb->mmcio;
 559         cts = &start_ccb->cts.proto_specific.mmc;
 560         struct mmc_params *mmcp = &path->device->mmc_ident_data;
 561
 562         memset(&mmcio->cmd, 0, sizeof(struct mmc_command));
 563
 564         if (softc->restart) {
 565                 softc->restart = 0;
 566                 if (path->device->flags & CAM_DEV_UNCONFIGURED)
 567                         softc->action = PROBE_RESET;
 568                 else
 569                         softc->action = PROBE_IDENTIFY;
 570
 571         }
 572
 573         /* Here is the place where the identify fun begins */
 574         switch (softc->action) {
 575         case PROBE_RESET:
 576                 /* FALLTHROUGH */
 577         case PROBE_IDENTIFY:
 578                 xpt_path_inq(&start_ccb->cpi, periph->path);
 579                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("Start with PROBE_RESET\n"));
 580                 init_standard_ccb(start_ccb, XPT_GET_TRAN_SETTINGS);
 581                 xpt_action(start_ccb);
 582                 if (cts->ios.power_mode != power_off) {
 583                         init_standard_ccb(start_ccb, XPT_SET_TRAN_SETTINGS);
 584                         cts->ios.power_mode = power_off;
 585                         cts->ios_valid = MMC_PM;
 586                         xpt_action(start_ccb);
 587                         mtx_sleep(periph, p_mtx, 0, "mmcios", 100);
 588                 }
 589                 /* mmc_power_up */
 590                 /* Get the host OCR */
 591                 init_standard_ccb(start_ccb, XPT_GET_TRAN_SETTINGS);
 592                 xpt_action(start_ccb);
 593
 594                 uint32_t hv = mmc_highest_voltage(cts->host_ocr);
 595                 init_standard_ccb(start_ccb, XPT_SET_TRAN_SETTINGS);
 596                 cts->ios.vdd = hv;
 597                 cts->ios.bus_mode = opendrain;
 598                 cts->ios.chip_select = cs_dontcare;
 599                 cts->ios.power_mode = power_up;
 600                 cts->ios.bus_width = bus_width_1;
 601                 cts->ios.clock = 0;
 602                 cts->ios_valid = MMC_VDD | MMC_PM | MMC_BM |
 603                         MMC_CS | MMC_BW | MMC_CLK;
 604                 xpt_action(start_ccb);
 605                 mtx_sleep(periph, p_mtx, 0, "mmcios", 100);
 606
 607                 init_standard_ccb(start_ccb, XPT_SET_TRAN_SETTINGS);
 608                 cts->ios.power_mode = power_on;
 609                 cts->ios.clock = CARD_ID_FREQUENCY;
 610                 cts->ios.timing = bus_timing_normal;
 611                 cts->ios_valid = MMC_PM | MMC_CLK | MMC_BT;
 612                 xpt_action(start_ccb);
 613                 mtx_sleep(periph, p_mtx, 0, "mmcios", 100);
 614                 /* End for mmc_power_on */
 615
 616                 /* Begin mmc_idle_cards() */
 617                 init_standard_ccb(start_ccb, XPT_SET_TRAN_SETTINGS);
 618                 cts->ios.chip_select = cs_high;
 619                 cts->ios_valid = MMC_CS;
 620                 xpt_action(start_ccb);
 621                 mtx_sleep(periph, p_mtx, 0, "mmcios", 1);
 622
 623                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("Send first XPT_MMC_IO\n"));
 624                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 625                 mmcio->cmd.opcode = MMC_GO_IDLE_STATE; /* CMD 0 */
 626                 mmcio->cmd.arg = 0;
 627                 mmcio->cmd.flags = MMC_RSP_NONE | MMC_CMD_BC;
 628                 mmcio->cmd.data = NULL;
 629                 mmcio->stop.opcode = 0;
 630
 631                 /* XXX Reset I/O portion as well */
 632                 break;
 633         case PROBE_SDIO_RESET:
 634                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 635                           ("Start with PROBE_SDIO_RESET\n"));
 636                 uint32_t mmc_arg = SD_IO_RW_ADR(SD_IO_CCCR_CTL)
 637                         | SD_IO_RW_DAT(CCCR_CTL_RES) | SD_IO_RW_WR | SD_IO_RW_RAW;
 638                 cam_fill_mmcio(&start_ccb->mmcio,
 639                                /*retries*/ 0,
 640                                /*cbfcnp*/ mmcprobe_done,
 641                                /*flags*/ CAM_DIR_NONE,
 642                                /*mmc_opcode*/ SD_IO_RW_DIRECT,
 643                                /*mmc_arg*/ mmc_arg,
 644                                /*mmc_flags*/ MMC_RSP_R5 | MMC_CMD_AC,
 645                                /*mmc_data*/ NULL,
 646                                /*timeout*/ 1000);
 647                 break;
 648         case PROBE_SEND_IF_COND:
 649                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 650                           ("Start with PROBE_SEND_IF_COND\n"));
 651                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 652                 mmcio->cmd.opcode = SD_SEND_IF_COND; /* CMD 8 */
 653                 mmcio->cmd.arg = (1 << 8) + 0xAA;
 654                 mmcio->cmd.flags = MMC_RSP_R7 | MMC_CMD_BCR;
 655                 mmcio->stop.opcode = 0;
 656                 break;
 657
 658         case PROBE_SDIO_INIT:
 659                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 660                           ("Start with PROBE_SDIO_INIT\n"));
 661                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 662                 mmcio->cmd.opcode = IO_SEND_OP_COND; /* CMD 5 */
 663                 mmcio->cmd.arg = mmcp->io_ocr;
 664                 mmcio->cmd.flags = MMC_RSP_R4;
 665                 mmcio->stop.opcode = 0;
 666                 break;
 667
 668         case PROBE_MMC_INIT:
 669                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 670                           ("Start with PROBE_MMC_INIT\n"));
 671                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 672                 mmcio->cmd.opcode = MMC_SEND_OP_COND; /* CMD 1 */
 673                 mmcio->cmd.arg = MMC_OCR_CCS | mmcp->card_ocr; /* CCS + ocr */;
 674                 mmcio->cmd.flags = MMC_RSP_R3 | MMC_CMD_BCR;
 675                 mmcio->stop.opcode = 0;
 676                 break;
 677
 678         case PROBE_SEND_APP_OP_COND:
 679                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 680                 if (softc->flags & PROBE_FLAG_ACMD_SENT) {
 681                         mmcio->cmd.opcode = ACMD_SD_SEND_OP_COND; /* CMD 41 */
 682                         /*
 683                          * We set CCS bit because we do support SDHC cards.
 684                          * XXX: Don't set CCS if no response to CMD8.
 685                          */
 686                         uint32_t cmd_arg = MMC_OCR_CCS | mmcp->card_ocr; /* CCS + ocr */
 687                         if (softc->acmd41_count < 10 && mmcp->card_ocr != 0 )
 688                                 cmd_arg |= MMC_OCR_S18R;
 689                         mmcio->cmd.arg = cmd_arg;
 690                         mmcio->cmd.flags = MMC_RSP_R3 | MMC_CMD_BCR;
 691                         softc->acmd41_count++;
 692                 } else {
 693                         mmcio->cmd.opcode = MMC_APP_CMD; /* CMD 55 */
 694                         mmcio->cmd.arg = 0; /* rca << 16 */
 695                         mmcio->cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
 696                 }
 697                 mmcio->stop.opcode = 0;
 698                 break;
 699
 700         case PROBE_GET_CID: /* XXX move to mmc_da */
 701                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 702                 mmcio->cmd.opcode = MMC_ALL_SEND_CID;
 703                 mmcio->cmd.arg = 0;
 704                 mmcio->cmd.flags = MMC_RSP_R2 | MMC_CMD_BCR;
 705                 mmcio->stop.opcode = 0;
 706                 break;
 707         case PROBE_SEND_RELATIVE_ADDR:
 708                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 709                 mmcio->cmd.opcode = SD_SEND_RELATIVE_ADDR;
 710                 mmcio->cmd.arg = 0;
 711                 mmcio->cmd.flags = MMC_RSP_R6 | MMC_CMD_BCR;
 712                 mmcio->stop.opcode = 0;
 713                 break;
 714         case PROBE_MMC_SET_RELATIVE_ADDR:
 715                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 716                 mmcio->cmd.opcode = MMC_SET_RELATIVE_ADDR;
 717                 mmcio->cmd.arg = MMC_PROPOSED_RCA << 16;
 718                 mmcio->cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
 719                 mmcio->stop.opcode = 0;
 720                 break;
 721         case PROBE_SELECT_CARD:
 722                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 723                 mmcio->cmd.opcode = MMC_SELECT_CARD;
 724                 mmcio->cmd.arg = (uint32_t)path->device->mmc_ident_data.card_rca << 16;
 725                 mmcio->cmd.flags = MMC_RSP_R1B | MMC_CMD_AC;
 726                 mmcio->stop.opcode = 0;
 727                 break;
 728         case PROBE_GET_CSD: /* XXX move to mmc_da */
 729                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 730                 mmcio->cmd.opcode = MMC_SEND_CSD;
 731                 mmcio->cmd.arg = (uint32_t)path->device->mmc_ident_data.card_rca << 16;
 732                 mmcio->cmd.flags = MMC_RSP_R2 | MMC_CMD_BCR;
 733                 mmcio->stop.opcode = 0;
 734                 break;
 735         case PROBE_DONE:
 736                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("Start with PROBE_DONE\n"));
 737                 init_standard_ccb(start_ccb, XPT_SET_TRAN_SETTINGS);
 738                 cts->ios.bus_mode = pushpull;
 739                 cts->ios_valid = MMC_BM;
 740                 xpt_action(start_ccb);
 741                 return;
 742                 /* NOTREACHED */
 743                 break;
 744         case PROBE_INVALID:
 745                 break;
 746         default:
 747                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("probestart: invalid action state 0x%x\n", softc->action));
 748                 panic("default: case in mmc_probe_start()");
 749         }
 750
 751         start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
 752         xpt_action(start_ccb);
 753 }
 754
 755 static void mmcprobe_cleanup(struct cam_periph *periph)
 756 {
 757         free(periph->softc, M_CAMXPT);
 758 }
 759
 760 static void
 761 mmcprobe_done(struct cam_periph *periph, union ccb *done_ccb)
 762 {
 763         mmcprobe_softc *softc;
 764         struct cam_path *path;
 765
 766         int err;
 767         struct ccb_mmcio *mmcio;
 768         u_int32_t  priority;
 769
 770         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("mmcprobe_done\n"));
 771         softc = (mmcprobe_softc *)periph->softc;
 772         path = done_ccb->ccb_h.path;
 773         priority = done_ccb->ccb_h.pinfo.priority;
 774
 775         switch (softc->action) {
 776         case PROBE_RESET:
 777                 /* FALLTHROUGH */
 778         case PROBE_IDENTIFY:
 779         {
 780                 printf("Starting completion of PROBE_RESET\n");
 781                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("done with PROBE_RESET\n"));
 782                 mmcio = &done_ccb->mmcio;
 783                 err = mmcio->cmd.error;
 784
 785                 if (err != MMC_ERR_NONE) {
 786                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 787                                   ("GO_IDLE_STATE failed with error %d\n",
 788                                    err));
 789
 790                         /* There was a device there, but now it's gone... */
 791                         if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) {
 792                                 xpt_async(AC_LOST_DEVICE, path, NULL);
 793                         }
 794                         PROBE_SET_ACTION(softc, PROBE_INVALID);
 795                         break;
 796                 }
 797                 path->device->protocol = PROTO_MMCSD;
 798                 PROBE_SET_ACTION(softc, PROBE_SEND_IF_COND);
 799                 break;
 800         }
 801         case PROBE_SEND_IF_COND:
 802         {
 803                 mmcio = &done_ccb->mmcio;
 804                 err = mmcio->cmd.error;
 805                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
 806
 807                 if (err != MMC_ERR_NONE || mmcio->cmd.resp[0] != 0x1AA) {
 808                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 809                                   ("IF_COND: error %d, pattern %08x\n",
 810                                    err, mmcio->cmd.resp[0]));
 811                 } else {
 812                         mmcp->card_features |= CARD_FEATURE_SD20;
 813                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 814                                   ("SD 2.0 interface conditions: OK\n"));
 815
 816                 }
 817                 PROBE_SET_ACTION(softc, PROBE_SDIO_RESET);
 818                 break;
 819         }
 820         case PROBE_SDIO_RESET:
 821         {
 822                 mmcio = &done_ccb->mmcio;
 823                 err = mmcio->cmd.error;
 824
 825                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 826                           ("SDIO_RESET: error %d, CCCR CTL register: %08x\n",
 827                            err, mmcio->cmd.resp[0]));
 828                 PROBE_SET_ACTION(softc, PROBE_SDIO_INIT);
 829                 break;
 830         }
 831         case PROBE_SDIO_INIT:
 832         {
 833                 mmcio = &done_ccb->mmcio;
 834                 err = mmcio->cmd.error;
 835                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
 836
 837                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 838                           ("SDIO_INIT: error %d, %08x %08x %08x %08x\n",
 839                            err, mmcio->cmd.resp[0],
 840                            mmcio->cmd.resp[1],
 841                            mmcio->cmd.resp[2],
 842                            mmcio->cmd.resp[3]));
 843
 844                 /*
 845                  * Error here means that this card is not SDIO,
 846                  * so proceed with memory init as if nothing has happened
 847                  */
 848                 if (err != MMC_ERR_NONE) {
 849                         PROBE_SET_ACTION(softc, PROBE_SEND_APP_OP_COND);
 850                         break;
 851                 }
 852                 mmcp->card_features |= CARD_FEATURE_SDIO;
 853                 uint32_t ioifcond = mmcio->cmd.resp[0];
 854                 uint32_t io_ocr = ioifcond & R4_IO_OCR_MASK;
 855
 856                 mmcp->sdio_func_count = R4_IO_NUM_FUNCTIONS(ioifcond);
 857                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 858                           ("SDIO card: %d functions\n", mmcp->sdio_func_count));
 859                 if (io_ocr == 0) {
 860                     CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 861                               ("SDIO OCR invalid?!\n"));
 862                     break; /* Retry */
 863                 }
 864
 865                 if (io_ocr != 0 && mmcp->io_ocr == 0) {
 866                         mmcp->io_ocr = io_ocr;
 867                         break; /* Retry, this time with non-0 OCR */
 868                 }
 869                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 870                           ("SDIO OCR: %08x\n", mmcp->io_ocr));
 871
 872                 if (ioifcond & R4_IO_MEM_PRESENT) {
 873                         /* Combo card -- proceed to memory initialization */
 874                         PROBE_SET_ACTION(softc, PROBE_SEND_APP_OP_COND);
 875                 } else {
 876                         /* No memory portion -- get RCA and select card */
 877                         PROBE_SET_ACTION(softc, PROBE_SEND_RELATIVE_ADDR);
 878                 }
 879                 break;
 880         }
 881         case PROBE_MMC_INIT:
 882         {
 883                 mmcio = &done_ccb->mmcio;
 884                 err = mmcio->cmd.error;
 885                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
 886
 887                 if (err != MMC_ERR_NONE) {
 888                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 889                                   ("MMC_INIT: error %d, resp %08x\n",
 890                                    err, mmcio->cmd.resp[0]));
 891                         PROBE_SET_ACTION(softc, PROBE_INVALID);
 892                         break;
 893                 }
 894                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 895                           ("MMC card, OCR %08x\n", mmcio->cmd.resp[0]));
 896
 897                 if (mmcp->card_ocr == 0) {
 898                         /* We haven't sent the OCR to the card yet -- do it */
 899                         mmcp->card_ocr = mmcio->cmd.resp[0];
 900                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 901                                   ("-> sending OCR to card\n"));
 902                         break;
 903                 }
 904
 905                 if (!(mmcio->cmd.resp[0] & MMC_OCR_CARD_BUSY)) {
 906                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 907                                   ("Card is still powering up\n"));
 908                         break;
 909                 }
 910
 911                 mmcp->card_features |= CARD_FEATURE_MMC | CARD_FEATURE_MEMORY;
 912                 PROBE_SET_ACTION(softc, PROBE_GET_CID);
 913                 break;
 914         }
 915         case PROBE_SEND_APP_OP_COND:
 916         {
 917                 mmcio = &done_ccb->mmcio;
 918                 err = mmcio->cmd.error;
 919
 920                 if (err != MMC_ERR_NONE) {
 921                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 922                                   ("APP_OP_COND: error %d, resp %08x\n",
 923                                    err, mmcio->cmd.resp[0]));
 924                         PROBE_SET_ACTION(softc, PROBE_MMC_INIT);
 925                         break;
 926                 }
 927
 928                 if (!(softc->flags & PROBE_FLAG_ACMD_SENT)) {
 929                         /* Don't change the state */
 930                         softc->flags |= PROBE_FLAG_ACMD_SENT;
 931                         break;
 932                 }
 933
 934                 softc->flags &= ~PROBE_FLAG_ACMD_SENT;
 935                 if ((mmcio->cmd.resp[0] & MMC_OCR_CARD_BUSY) ||
 936                     (mmcio->cmd.arg & MMC_OCR_VOLTAGE) == 0) {
 937                         struct mmc_params *mmcp = &path->device->mmc_ident_data;
 938                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 939                                   ("Card OCR: %08x\n",  mmcio->cmd.resp[0]));
 940                         if (mmcp->card_ocr == 0) {
 941                                 mmcp->card_ocr = mmcio->cmd.resp[0];
 942                                 /* Now when we know OCR that we want -- send it to card */
 943                                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 944                                           ("-> sending OCR to card\n"));
 945                         } else {
 946                                 /* We already know the OCR and despite of that we
 947                                  * are processing the answer to ACMD41 -> move on
 948                                  */
 949                                 PROBE_SET_ACTION(softc, PROBE_GET_CID);
 950                         }
 951                         /* Getting an answer to ACMD41 means the card has memory */
 952                         mmcp->card_features |= CARD_FEATURE_MEMORY;
 953
 954                         /* Standard capacity vs High Capacity memory card */
 955                         if (mmcio->cmd.resp[0] & MMC_OCR_CCS) {
 956                                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 957                                           ("Card is SDHC\n"));
 958                                 mmcp->card_features |= CARD_FEATURE_SDHC;
 959                         }
 960
 961                         /* Whether the card supports 1.8V signaling */
 962                         if (mmcio->cmd.resp[0] & MMC_OCR_S18A) {
 963                                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 964                                           ("Card supports 1.8V signaling\n"));
 965                                 mmcp->card_features |= CARD_FEATURE_18V;
 966                         }
 967                 } else {
 968                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 969                                   ("Card not ready: %08x\n",  mmcio->cmd.resp[0]));
 970                         /* Send CMD55+ACMD41 once again  */
 971                         PROBE_SET_ACTION(softc, PROBE_SEND_APP_OP_COND);
 972                 }
 973
 974                 break;
 975         }
 976         case PROBE_GET_CID: /* XXX move to mmc_da */
 977         {
 978                 mmcio = &done_ccb->mmcio;
 979                 err = mmcio->cmd.error;
 980
 981                 if (err != MMC_ERR_NONE) {
 982                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 983                                   ("PROBE_GET_CID: error %d\n", err));
 984                         PROBE_SET_ACTION(softc, PROBE_INVALID);
 985                         break;
 986                 }
 987
 988                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
 989                 memcpy(mmcp->card_cid, mmcio->cmd.resp, 4 * sizeof(uint32_t));
 990                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 991                           ("CID %08x%08x%08x%08x\n",
 992                            mmcp->card_cid[0],
 993                            mmcp->card_cid[1],
 994                            mmcp->card_cid[2],
 995                            mmcp->card_cid[3]));
 996                 if (mmcp->card_features & CARD_FEATURE_MMC)
 997                         PROBE_SET_ACTION(softc, PROBE_MMC_SET_RELATIVE_ADDR);
 998                 else
 999                         PROBE_SET_ACTION(softc, PROBE_SEND_RELATIVE_ADDR);
1000                 break;
1001         }
1002         case PROBE_SEND_RELATIVE_ADDR: {
1003                 mmcio = &done_ccb->mmcio;
1004                 err = mmcio->cmd.error;
1005                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
1006                 uint16_t rca = mmcio->cmd.resp[0] >> 16;
1007                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1008                           ("Card published RCA: %u\n", rca));
1009                 path->device->mmc_ident_data.card_rca = rca;
1010                 if (err != MMC_ERR_NONE) {
1011                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1012                                   ("PROBE_SEND_RELATIVE_ADDR: error %d\n", err));
1013                         PROBE_SET_ACTION(softc, PROBE_INVALID);
1014                         break;
1015                 }
1016
1017                 /* If memory is present, get CSD, otherwise select card */
1018                 if (mmcp->card_features & CARD_FEATURE_MEMORY)
1019                         PROBE_SET_ACTION(softc, PROBE_GET_CSD);
1020                 else
1021                         PROBE_SET_ACTION(softc, PROBE_SELECT_CARD);
1022                 break;
1023         }
1024         case PROBE_MMC_SET_RELATIVE_ADDR:
1025                 mmcio = &done_ccb->mmcio;
1026                 err = mmcio->cmd.error;
1027                 if (err != MMC_ERR_NONE) {
1028                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1029                             ("PROBE_MMC_SET_RELATIVE_ADDR: error %d\n", err));
1030                         PROBE_SET_ACTION(softc, PROBE_INVALID);
1031                         break;
1032                 }
1033                 path->device->mmc_ident_data.card_rca = MMC_PROPOSED_RCA;
1034                 PROBE_SET_ACTION(softc, PROBE_GET_CSD);
1035                 break;
1036         case PROBE_GET_CSD: {
1037                 mmcio = &done_ccb->mmcio;
1038                 err = mmcio->cmd.error;
1039
1040                 if (err != MMC_ERR_NONE) {
1041                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1042                                   ("PROBE_GET_CSD: error %d\n", err));
1043                         PROBE_SET_ACTION(softc, PROBE_INVALID);
1044                         break;
1045                 }
1046
1047                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
1048                 memcpy(mmcp->card_csd, mmcio->cmd.resp, 4 * sizeof(uint32_t));
1049                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1050                           ("CSD %08x%08x%08x%08x\n",
1051                            mmcp->card_csd[0],
1052                            mmcp->card_csd[1],
1053                            mmcp->card_csd[2],
1054                            mmcp->card_csd[3]));
1055                 PROBE_SET_ACTION(softc, PROBE_SELECT_CARD);
1056                 break;
1057         }
1058         case PROBE_SELECT_CARD: {
1059                 mmcio = &done_ccb->mmcio;
1060                 err = mmcio->cmd.error;
1061                 if (err != MMC_ERR_NONE) {
1062                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1063                                   ("PROBE_SEND_RELATIVE_ADDR: error %d\n", err));
1064                         PROBE_SET_ACTION(softc, PROBE_INVALID);
1065                         break;
1066                 }
1067
1068                 PROBE_SET_ACTION(softc, PROBE_DONE);
1069                 break;
1070         }
1071         default:
1072                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1073                           ("mmc_probedone: invalid action state 0x%x\n", softc->action));
1074                 panic("default: case in mmc_probe_done()");
1075         }
1076
1077         if (softc->action == PROBE_INVALID &&
1078             (path->device->flags & CAM_DEV_UNCONFIGURED) == 0) {
1079                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1080                           ("mmc_probedone: Should send AC_LOST_DEVICE but won't for now\n"));
1081                 //xpt_async(AC_LOST_DEVICE, path, NULL);
1082         }
1083
1084         xpt_release_ccb(done_ccb);
1085         if (softc->action != PROBE_INVALID)
1086                 xpt_schedule(periph, priority);
1087         /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */
1088         int frozen = cam_release_devq(path, 0, 0, 0, FALSE);
1089         printf("mmc_probedone: remaining freezecnt %d\n", frozen);
1090
1091         if (softc->action == PROBE_DONE) {
1092                 /* Notify the system that the device is found! */
1093                 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) {
1094                         path->device->flags &= ~CAM_DEV_UNCONFIGURED;
1095                         xpt_acquire_device(path->device);
1096                         done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
1097                         xpt_action(done_ccb);
1098                         xpt_async(AC_FOUND_DEVICE, path, done_ccb);
1099                 }
1100         }
1101         if (softc->action == PROBE_DONE || softc->action == PROBE_INVALID) {
1102                 cam_periph_invalidate(periph);
1103                 cam_periph_release_locked(periph);
1104         }
1105 }