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_SELECT_CARD,
 102         PROBE_DONE,
 103         PROBE_INVALID
 104 } probe_action;
 105
 106 static char *probe_action_text[] = {
 107         "PROBE_RESET",
 108         "PROBE_IDENTIFY",
 109         "PROBE_SDIO_RESET",
 110         "PROBE_SEND_IF_COND",
 111         "PROBE_SDIO_INIT",
 112         "PROBE_MMC_INIT",
 113         "PROBE_SEND_APP_OP_COND",
 114         "PROBE_GET_CID",
 115         "PROBE_GET_CSD",
 116         "PROBE_SEND_RELATIVE_ADDR",
 117         "PROBE_SELECT_CARD",
 118         "PROBE_DONE",
 119         "PROBE_INVALID"
 120 };
 121
 122 #define PROBE_SET_ACTION(softc, newaction)      \
 123 do {                                                                    \
 124         char **text;                                                    \
 125         text = probe_action_text;                                       \
 126         CAM_DEBUG((softc)->periph->path, CAM_DEBUG_PROBE,               \
 127             ("Probe %s to %s\n", text[(softc)->action],                 \
 128             text[(newaction)]));                                        \
 129         (softc)->action = (newaction);                                  \
 130 } while(0)
 131
 132 static struct xpt_xport_ops mmc_xport_ops = {
 133         .alloc_device = mmc_alloc_device,
 134         .action = mmc_action,
 135         .async = mmc_dev_async,
 136         .announce = mmc_announce_periph,
 137 };
 138
 139 #define MMC_XPT_XPORT(x, X)                             \
 140         static struct xpt_xport mmc_xport_ ## x = {     \
 141                 .xport = XPORT_ ## X,                   \
 142                 .name = #x,                             \
 143                 .ops = &mmc_xport_ops,                  \
 144         };                                              \
 145         CAM_XPT_XPORT(mmc_xport_ ## x);
 146
 147 MMC_XPT_XPORT(mmc, MMCSD);
 148
 149 static struct xpt_proto_ops mmc_proto_ops = {
 150         .announce = mmc_proto_announce,
 151         .denounce = mmc_proto_denounce,
 152         .debug_out = mmc_proto_debug_out,
 153 };
 154
 155 static struct xpt_proto mmc_proto = {
 156         .proto = PROTO_MMCSD,
 157         .name = "mmcsd",
 158         .ops = &mmc_proto_ops,
 159 };
 160 CAM_XPT_PROTO(mmc_proto);
 161
 162 typedef struct {
 163         probe_action    action;
 164         int             restart;
 165         union ccb       saved_ccb;
 166         uint32_t        flags;
 167 #define PROBE_FLAG_ACMD_SENT    0x1 /* CMD55 is sent, card expects ACMD */
 168         uint8_t         acmd41_count; /* how many times ACMD41 has been issued */
 169         struct cam_periph *periph;
 170 } mmcprobe_softc;
 171
 172 /* XPort functions -- an interface to CAM at periph side */
 173
 174 static struct cam_ed *
 175 mmc_alloc_device(struct cam_eb *bus, struct cam_et *target, lun_id_t lun_id)
 176 {
 177         struct cam_ed *device;
 178
 179         printf("mmc_alloc_device()\n");
 180         device = xpt_alloc_device(bus, target, lun_id);
 181         if (device == NULL)
 182                 return (NULL);
 183
 184         device->quirk = NULL;
 185         device->mintags = 0;
 186         device->maxtags = 0;
 187         bzero(&device->inq_data, sizeof(device->inq_data));
 188         device->inq_flags = 0;
 189         device->queue_flags = 0;
 190         device->serial_num = NULL;
 191         device->serial_num_len = 0;
 192         return (device);
 193 }
 194
 195 static void
 196 mmc_dev_async(u_int32_t async_code, struct cam_eb *bus, struct cam_et *target,
 197               struct cam_ed *device, void *async_arg)
 198 {
 199
 200         printf("mmc_dev_async(async_code=0x%x, path_id=%d, target_id=%x, lun_id=%" SCNx64 "\n",
 201                async_code,
 202                bus->path_id,
 203                target->target_id,
 204                device->lun_id);
 205         /*
 206          * We only need to handle events for real devices.
 207          */
 208         if (target->target_id == CAM_TARGET_WILDCARD
 209             || device->lun_id == CAM_LUN_WILDCARD)
 210                 return;
 211
 212         if (async_code == AC_LOST_DEVICE) {
 213                 if ((device->flags & CAM_DEV_UNCONFIGURED) == 0) {
 214                         printf("AC_LOST_DEVICE -> set to unconfigured\n");
 215                         device->flags |= CAM_DEV_UNCONFIGURED;
 216                         xpt_release_device(device);
 217                 } else {
 218                         printf("AC_LOST_DEVICE on unconfigured device\n");
 219                 }
 220         } else if (async_code == AC_FOUND_DEVICE) {
 221                 printf("Got AC_FOUND_DEVICE -- whatever...\n");
 222         } else if (async_code == AC_PATH_REGISTERED) {
 223                 printf("Got AC_PATH_REGISTERED -- whatever...\n");
 224         } else if (async_code == AC_PATH_DEREGISTERED ) {
 225                         printf("Got AC_PATH_DEREGISTERED -- whatever...\n");
 226         } else if (async_code == AC_UNIT_ATTENTION) {
 227                 printf("Got interrupt generated by the card and ignored it\n");
 228         } else
 229                 panic("Unknown async code\n");
 230 }
 231
 232 /* Taken from nvme_scan_lun, thanks to bsdimp@ */
 233 static void
 234 mmc_scan_lun(struct cam_periph *periph, struct cam_path *path,
 235              cam_flags flags, union ccb *request_ccb)
 236 {
 237         struct ccb_pathinq cpi;
 238         cam_status status;
 239         struct cam_periph *old_periph;
 240         int lock;
 241
 242         CAM_DEBUG(path, CAM_DEBUG_TRACE, ("mmc_scan_lun\n"));
 243
 244         xpt_path_inq(&cpi, periph->path);
 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         case CDAI_TYPE_MMC_PARAMS:
 371                 cdai->provsiz = sizeof(struct mmc_params);
 372                 amt = MIN(cdai->provsiz, cdai->bufsiz);
 373                 memcpy(cdai->buf, &device->mmc_ident_data, amt);
 374                 break;
 375         default:
 376                 panic("Unknown buftype");
 377                 return;
 378         }
 379         start_ccb->ccb_h.status = CAM_REQ_CMP;
 380 }
 381
 382 static void
 383 mmc_announce_periph(struct cam_periph *periph)
 384 {
 385         struct  ccb_pathinq cpi;
 386         struct  ccb_trans_settings cts;
 387         struct  cam_path *path = periph->path;
 388
 389         cam_periph_assert(periph, MA_OWNED);
 390
 391         CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
 392                   ("mmc_announce_periph: called\n"));
 393
 394         xpt_setup_ccb(&cts.ccb_h, path, CAM_PRIORITY_NORMAL);
 395         cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
 396         cts.type = CTS_TYPE_CURRENT_SETTINGS;
 397         xpt_action((union ccb*)&cts);
 398         if ((cts.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
 399                 return;
 400         xpt_path_inq(&cpi, periph->path);
 401         printf("XPT info: CLK %04X, ...\n", cts.proto_specific.mmc.ios.clock);
 402 }
 403
 404 /* This func is called per attached device :-( */
 405 void
 406 mmc_print_ident(struct mmc_params *ident_data)
 407 {
 408         printf("Relative addr: %08x\n", ident_data->card_rca);
 409         printf("Card features: <");
 410         if (ident_data->card_features & CARD_FEATURE_MMC)
 411                 printf("MMC ");
 412         if (ident_data->card_features & CARD_FEATURE_MEMORY)
 413                 printf("Memory ");
 414         if (ident_data->card_features & CARD_FEATURE_SDHC)
 415                 printf("High-Capacity ");
 416         if (ident_data->card_features & CARD_FEATURE_SD20)
 417                 printf("SD2.0-Conditions ");
 418         if (ident_data->card_features & CARD_FEATURE_SDIO)
 419                 printf("SDIO ");
 420         printf(">\n");
 421
 422         if (ident_data->card_features & CARD_FEATURE_MEMORY)
 423                 printf("Card memory OCR: %08x\n", ident_data->card_ocr);
 424
 425         if (ident_data->card_features & CARD_FEATURE_SDIO) {
 426                 printf("Card IO OCR: %08x\n", ident_data->io_ocr);
 427                 printf("Number of funcitions: %u\n", ident_data->sdio_func_count);
 428         }
 429 }
 430
 431 static void
 432 mmc_proto_announce(struct cam_ed *device)
 433 {
 434         mmc_print_ident(&device->mmc_ident_data);
 435 }
 436
 437 static void
 438 mmc_proto_denounce(struct cam_ed *device)
 439 {
 440         mmc_print_ident(&device->mmc_ident_data);
 441 }
 442
 443 static void
 444 mmc_proto_debug_out(union ccb *ccb)
 445 {
 446         if (ccb->ccb_h.func_code != XPT_MMC_IO)
 447                 return;
 448
 449         CAM_DEBUG(ccb->ccb_h.path,
 450             CAM_DEBUG_CDB,("mmc_proto_debug_out\n"));
 451 }
 452
 453 static periph_init_t probe_periph_init;
 454
 455 static struct periph_driver probe_driver =
 456 {
 457         probe_periph_init, "mmcprobe",
 458         TAILQ_HEAD_INITIALIZER(probe_driver.units), /* generation */ 0,
 459         CAM_PERIPH_DRV_EARLY
 460 };
 461
 462 PERIPHDRIVER_DECLARE(mmcprobe, probe_driver);
 463
 464 #define CARD_ID_FREQUENCY 400000 /* Spec requires 400kHz max during ID phase. */
 465
 466 static void
 467 probe_periph_init()
 468 {
 469 }
 470
 471 static cam_status
 472 mmcprobe_register(struct cam_periph *periph, void *arg)
 473 {
 474         mmcprobe_softc *softc;
 475         union ccb *request_ccb; /* CCB representing the probe request */
 476         int status;
 477
 478         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("mmcprobe_register\n"));
 479
 480         request_ccb = (union ccb *)arg;
 481         if (request_ccb == NULL) {
 482                 printf("mmcprobe_register: no probe CCB, "
 483                        "can't register device\n");
 484                 return(CAM_REQ_CMP_ERR);
 485         }
 486
 487         softc = (mmcprobe_softc *)malloc(sizeof(*softc), M_CAMXPT, M_NOWAIT);
 488
 489         if (softc == NULL) {
 490                 printf("proberegister: Unable to probe new device. "
 491                        "Unable to allocate softc\n");
 492                 return(CAM_REQ_CMP_ERR);
 493         }
 494
 495         softc->flags = 0;
 496         softc->acmd41_count = 0;
 497         periph->softc = softc;
 498         softc->periph = periph;
 499         softc->action = PROBE_INVALID;
 500         softc->restart = 0;
 501         status = cam_periph_acquire(periph);
 502
 503         memset(&periph->path->device->mmc_ident_data, 0, sizeof(struct mmc_params));
 504         if (status != 0) {
 505                 printf("proberegister: cam_periph_acquire failed (status=%d)\n",
 506                         status);
 507                 return (CAM_REQ_CMP_ERR);
 508         }
 509         CAM_DEBUG(periph->path, CAM_DEBUG_PROBE, ("Probe started\n"));
 510
 511         if (periph->path->device->flags & CAM_DEV_UNCONFIGURED)
 512                 PROBE_SET_ACTION(softc, PROBE_RESET);
 513         else
 514                 PROBE_SET_ACTION(softc, PROBE_IDENTIFY);
 515
 516         /* This will kick the ball */
 517         xpt_schedule(periph, CAM_PRIORITY_XPT);
 518
 519         return(CAM_REQ_CMP);
 520 }
 521
 522 static int
 523 mmc_highest_voltage(uint32_t ocr)
 524 {
 525         int i;
 526
 527         for (i = MMC_OCR_MAX_VOLTAGE_SHIFT;
 528             i >= MMC_OCR_MIN_VOLTAGE_SHIFT; i--)
 529                 if (ocr & (1 << i))
 530                         return (i);
 531         return (-1);
 532 }
 533
 534 static inline void
 535 init_standard_ccb(union ccb *ccb, uint32_t cmd)
 536 {
 537         ccb->ccb_h.func_code = cmd;
 538         ccb->ccb_h.flags = CAM_DIR_OUT;
 539         ccb->ccb_h.retry_count = 0;
 540         ccb->ccb_h.timeout = 15 * 1000;
 541         ccb->ccb_h.cbfcnp = mmcprobe_done;
 542 }
 543
 544 static void
 545 mmcprobe_start(struct cam_periph *periph, union ccb *start_ccb)
 546 {
 547         mmcprobe_softc *softc;
 548         struct cam_path *path;
 549         struct ccb_mmcio *mmcio;
 550         struct mtx *p_mtx = cam_periph_mtx(periph);
 551         struct ccb_trans_settings_mmc *cts;
 552
 553         CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("mmcprobe_start\n"));
 554         softc = (mmcprobe_softc *)periph->softc;
 555         path = start_ccb->ccb_h.path;
 556         mmcio = &start_ccb->mmcio;
 557         cts = &start_ccb->cts.proto_specific.mmc;
 558         struct mmc_params *mmcp = &path->device->mmc_ident_data;
 559
 560         memset(&mmcio->cmd, 0, sizeof(struct mmc_command));
 561
 562         if (softc->restart) {
 563                 softc->restart = 0;
 564                 if (path->device->flags & CAM_DEV_UNCONFIGURED)
 565                         softc->action = PROBE_RESET;
 566                 else
 567                         softc->action = PROBE_IDENTIFY;
 568
 569         }
 570
 571         /* Here is the place where the identify fun begins */
 572         switch (softc->action) {
 573         case PROBE_RESET:
 574                 /* FALLTHROUGH */
 575         case PROBE_IDENTIFY:
 576                 xpt_path_inq(&start_ccb->cpi, periph->path);
 577
 578                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("Start with PROBE_RESET\n"));
 579                 init_standard_ccb(start_ccb, XPT_SET_TRAN_SETTINGS);
 580                 cts->ios.power_mode = power_off;
 581                 cts->ios_valid = MMC_PM;
 582                 xpt_action(start_ccb);
 583                 mtx_sleep(periph, p_mtx, 0, "mmcios", 100);
 584
 585                 /* mmc_power_up */
 586                 /* Get the host OCR */
 587                 init_standard_ccb(start_ccb, XPT_GET_TRAN_SETTINGS);
 588                 xpt_action(start_ccb);
 589
 590                 uint32_t hv = mmc_highest_voltage(cts->host_ocr);
 591                 init_standard_ccb(start_ccb, XPT_SET_TRAN_SETTINGS);
 592                 cts->ios.vdd = hv;
 593                 cts->ios.bus_mode = opendrain;
 594                 cts->ios.chip_select = cs_dontcare;
 595                 cts->ios.power_mode = power_up;
 596                 cts->ios.bus_width = bus_width_1;
 597                 cts->ios.clock = 0;
 598                 cts->ios_valid = MMC_VDD | MMC_PM | MMC_BM |
 599                         MMC_CS | MMC_BW | MMC_CLK;
 600                 xpt_action(start_ccb);
 601                 mtx_sleep(periph, p_mtx, 0, "mmcios", 100);
 602
 603                 init_standard_ccb(start_ccb, XPT_SET_TRAN_SETTINGS);
 604                 cts->ios.power_mode = power_on;
 605                 cts->ios.clock = CARD_ID_FREQUENCY;
 606                 cts->ios.timing = bus_timing_normal;
 607                 cts->ios_valid = MMC_PM | MMC_CLK | MMC_BT;
 608                 xpt_action(start_ccb);
 609                 mtx_sleep(periph, p_mtx, 0, "mmcios", 100);
 610                 /* End for mmc_power_on */
 611
 612                 /* Begin mmc_idle_cards() */
 613                 init_standard_ccb(start_ccb, XPT_SET_TRAN_SETTINGS);
 614                 cts->ios.chip_select = cs_high;
 615                 cts->ios_valid = MMC_CS;
 616                 xpt_action(start_ccb);
 617                 mtx_sleep(periph, p_mtx, 0, "mmcios", 1);
 618
 619                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("Send first XPT_MMC_IO\n"));
 620                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 621                 mmcio->cmd.opcode = MMC_GO_IDLE_STATE; /* CMD 0 */
 622                 mmcio->cmd.arg = 0;
 623                 mmcio->cmd.flags = MMC_RSP_NONE | MMC_CMD_BC;
 624                 mmcio->cmd.data = NULL;
 625                 mmcio->stop.opcode = 0;
 626
 627                 /* XXX Reset I/O portion as well */
 628                 break;
 629         case PROBE_SDIO_RESET:
 630                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 631                           ("Start with PROBE_SDIO_RESET\n"));
 632                 uint32_t mmc_arg = SD_IO_RW_ADR(SD_IO_CCCR_CTL)
 633                         | SD_IO_RW_DAT(CCCR_CTL_RES) | SD_IO_RW_WR | SD_IO_RW_RAW;
 634                 cam_fill_mmcio(&start_ccb->mmcio,
 635                                /*retries*/ 0,
 636                                /*cbfcnp*/ mmcprobe_done,
 637                                /*flags*/ CAM_DIR_NONE,
 638                                /*mmc_opcode*/ SD_IO_RW_DIRECT,
 639                                /*mmc_arg*/ mmc_arg,
 640                                /*mmc_flags*/ MMC_RSP_R5 | MMC_CMD_AC,
 641                                /*mmc_data*/ NULL,
 642                                /*timeout*/ 1000);
 643                 break;
 644         case PROBE_SEND_IF_COND:
 645                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 646                           ("Start with PROBE_SEND_IF_COND\n"));
 647                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 648                 mmcio->cmd.opcode = SD_SEND_IF_COND; /* CMD 8 */
 649                 mmcio->cmd.arg = (1 << 8) + 0xAA;
 650                 mmcio->cmd.flags = MMC_RSP_R7 | MMC_CMD_BCR;
 651                 mmcio->stop.opcode = 0;
 652                 break;
 653
 654         case PROBE_SDIO_INIT:
 655                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 656                           ("Start with PROBE_SDIO_INIT\n"));
 657                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 658                 mmcio->cmd.opcode = IO_SEND_OP_COND; /* CMD 5 */
 659                 mmcio->cmd.arg = mmcp->io_ocr;
 660                 mmcio->cmd.flags = MMC_RSP_R4;
 661                 mmcio->stop.opcode = 0;
 662                 break;
 663
 664         case PROBE_MMC_INIT:
 665                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 666                           ("Start with PROBE_MMC_INIT\n"));
 667                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 668                 mmcio->cmd.opcode = MMC_SEND_OP_COND; /* CMD 1 */
 669                 mmcio->cmd.arg = MMC_OCR_CCS | mmcp->card_ocr; /* CCS + ocr */;
 670                 mmcio->cmd.flags = MMC_RSP_R3 | MMC_CMD_BCR;
 671                 mmcio->stop.opcode = 0;
 672                 break;
 673
 674         case PROBE_SEND_APP_OP_COND:
 675                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 676                 if (softc->flags & PROBE_FLAG_ACMD_SENT) {
 677                         mmcio->cmd.opcode = ACMD_SD_SEND_OP_COND; /* CMD 41 */
 678                         /*
 679                          * We set CCS bit because we do support SDHC cards.
 680                          * XXX: Don't set CCS if no response to CMD8.
 681                          */
 682                         uint32_t cmd_arg = MMC_OCR_CCS | mmcp->card_ocr; /* CCS + ocr */
 683                         if (softc->acmd41_count < 10 && mmcp->card_ocr != 0 )
 684                                 cmd_arg |= MMC_OCR_S18R;
 685                         mmcio->cmd.arg = cmd_arg;
 686                         mmcio->cmd.flags = MMC_RSP_R3 | MMC_CMD_BCR;
 687                         softc->acmd41_count++;
 688                 } else {
 689                         mmcio->cmd.opcode = MMC_APP_CMD; /* CMD 55 */
 690                         mmcio->cmd.arg = 0; /* rca << 16 */
 691                         mmcio->cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
 692                 }
 693                 mmcio->stop.opcode = 0;
 694                 break;
 695
 696         case PROBE_GET_CID: /* XXX move to mmc_da */
 697                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 698                 mmcio->cmd.opcode = MMC_ALL_SEND_CID;
 699                 mmcio->cmd.arg = 0;
 700                 mmcio->cmd.flags = MMC_RSP_R2 | MMC_CMD_BCR;
 701                 mmcio->stop.opcode = 0;
 702                 break;
 703
 704         case PROBE_SEND_RELATIVE_ADDR:
 705                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 706                 mmcio->cmd.opcode = SD_SEND_RELATIVE_ADDR;
 707                 mmcio->cmd.arg = 0;
 708                 mmcio->cmd.flags = MMC_RSP_R6 | MMC_CMD_BCR;
 709                 mmcio->stop.opcode = 0;
 710                 break;
 711         case PROBE_SELECT_CARD:
 712                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 713                 mmcio->cmd.opcode = MMC_SELECT_CARD;
 714                 mmcio->cmd.arg = (uint32_t)path->device->mmc_ident_data.card_rca << 16;
 715                 mmcio->cmd.flags = MMC_RSP_R1B | MMC_CMD_AC;
 716                 mmcio->stop.opcode = 0;
 717                 break;
 718         case PROBE_GET_CSD: /* XXX move to mmc_da */
 719                 init_standard_ccb(start_ccb, XPT_MMC_IO);
 720                 mmcio->cmd.opcode = MMC_SEND_CSD;
 721                 mmcio->cmd.arg = (uint32_t)path->device->mmc_ident_data.card_rca << 16;
 722                 mmcio->cmd.flags = MMC_RSP_R2 | MMC_CMD_BCR;
 723                 mmcio->stop.opcode = 0;
 724                 break;
 725         case PROBE_DONE:
 726                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("Start with PROBE_DONE\n"));
 727                 init_standard_ccb(start_ccb, XPT_SET_TRAN_SETTINGS);
 728                 cts->ios.bus_mode = pushpull;
 729                 cts->ios_valid = MMC_BM;
 730                 xpt_action(start_ccb);
 731                 return;
 732                 /* NOTREACHED */
 733                 break;
 734         case PROBE_INVALID:
 735                 break;
 736         default:
 737                 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("probestart: invalid action state 0x%x\n", softc->action));
 738                 panic("default: case in mmc_probe_start()");
 739         }
 740
 741         start_ccb->ccb_h.flags |= CAM_DEV_QFREEZE;
 742         xpt_action(start_ccb);
 743 }
 744
 745 static void mmcprobe_cleanup(struct cam_periph *periph)
 746 {
 747         free(periph->softc, M_CAMXPT);
 748 }
 749
 750 static void
 751 mmcprobe_done(struct cam_periph *periph, union ccb *done_ccb)
 752 {
 753         mmcprobe_softc *softc;
 754         struct cam_path *path;
 755
 756         int err;
 757         struct ccb_mmcio *mmcio;
 758         u_int32_t  priority;
 759
 760         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("mmcprobe_done\n"));
 761         softc = (mmcprobe_softc *)periph->softc;
 762         path = done_ccb->ccb_h.path;
 763         priority = done_ccb->ccb_h.pinfo.priority;
 764
 765         switch (softc->action) {
 766         case PROBE_RESET:
 767                 /* FALLTHROUGH */
 768         case PROBE_IDENTIFY:
 769         {
 770                 printf("Starting completion of PROBE_RESET\n");
 771                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE, ("done with PROBE_RESET\n"));
 772                 mmcio = &done_ccb->mmcio;
 773                 err = mmcio->cmd.error;
 774
 775                 if (err != MMC_ERR_NONE) {
 776                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 777                                   ("GO_IDLE_STATE failed with error %d\n",
 778                                    err));
 779
 780                         /* There was a device there, but now it's gone... */
 781                         if ((path->device->flags & CAM_DEV_UNCONFIGURED) == 0) {
 782                                 xpt_async(AC_LOST_DEVICE, path, NULL);
 783                         }
 784                         PROBE_SET_ACTION(softc, PROBE_INVALID);
 785                         break;
 786                 }
 787                 path->device->protocol = PROTO_MMCSD;
 788                 PROBE_SET_ACTION(softc, PROBE_SEND_IF_COND);
 789                 break;
 790         }
 791         case PROBE_SEND_IF_COND:
 792         {
 793                 mmcio = &done_ccb->mmcio;
 794                 err = mmcio->cmd.error;
 795                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
 796
 797                 if (err != MMC_ERR_NONE || mmcio->cmd.resp[0] != 0x1AA) {
 798                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 799                                   ("IF_COND: error %d, pattern %08x\n",
 800                                    err, mmcio->cmd.resp[0]));
 801                 } else {
 802                         mmcp->card_features |= CARD_FEATURE_SD20;
 803                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 804                                   ("SD 2.0 interface conditions: OK\n"));
 805
 806                 }
 807                 PROBE_SET_ACTION(softc, PROBE_SDIO_RESET);
 808                 break;
 809         }
 810         case PROBE_SDIO_RESET:
 811         {
 812                 mmcio = &done_ccb->mmcio;
 813                 err = mmcio->cmd.error;
 814
 815                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 816                           ("SDIO_RESET: error %d, CCCR CTL register: %08x\n",
 817                            err, mmcio->cmd.resp[0]));
 818                 PROBE_SET_ACTION(softc, PROBE_SDIO_INIT);
 819                 break;
 820         }
 821         case PROBE_SDIO_INIT:
 822         {
 823                 mmcio = &done_ccb->mmcio;
 824                 err = mmcio->cmd.error;
 825                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
 826
 827                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 828                           ("SDIO_INIT: error %d, %08x %08x %08x %08x\n",
 829                            err, mmcio->cmd.resp[0],
 830                            mmcio->cmd.resp[1],
 831                            mmcio->cmd.resp[2],
 832                            mmcio->cmd.resp[3]));
 833
 834                 /*
 835                  * Error here means that this card is not SDIO,
 836                  * so proceed with memory init as if nothing has happened
 837                  */
 838                 if (err != MMC_ERR_NONE) {
 839                         PROBE_SET_ACTION(softc, PROBE_SEND_APP_OP_COND);
 840                         break;
 841                 }
 842                 mmcp->card_features |= CARD_FEATURE_SDIO;
 843                 uint32_t ioifcond = mmcio->cmd.resp[0];
 844                 uint32_t io_ocr = ioifcond & R4_IO_OCR_MASK;
 845
 846                 mmcp->sdio_func_count = R4_IO_NUM_FUNCTIONS(ioifcond);
 847                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 848                           ("SDIO card: %d functions\n", mmcp->sdio_func_count));
 849                 if (io_ocr == 0) {
 850                     CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 851                               ("SDIO OCR invalid?!\n"));
 852                     break; /* Retry */
 853                 }
 854
 855                 if (io_ocr != 0 && mmcp->io_ocr == 0) {
 856                         mmcp->io_ocr = io_ocr;
 857                         break; /* Retry, this time with non-0 OCR */
 858                 }
 859                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 860                           ("SDIO OCR: %08x\n", mmcp->io_ocr));
 861
 862                 if (ioifcond & R4_IO_MEM_PRESENT) {
 863                         /* Combo card -- proceed to memory initialization */
 864                         PROBE_SET_ACTION(softc, PROBE_SEND_APP_OP_COND);
 865                 } else {
 866                         /* No memory portion -- get RCA and select card */
 867                         PROBE_SET_ACTION(softc, PROBE_SEND_RELATIVE_ADDR);
 868                 }
 869                 break;
 870         }
 871         case PROBE_MMC_INIT:
 872         {
 873                 mmcio = &done_ccb->mmcio;
 874                 err = mmcio->cmd.error;
 875                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
 876
 877                 if (err != MMC_ERR_NONE) {
 878                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 879                                   ("MMC_INIT: error %d, resp %08x\n",
 880                                    err, mmcio->cmd.resp[0]));
 881                         PROBE_SET_ACTION(softc, PROBE_INVALID);
 882                         break;
 883                 }
 884                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 885                           ("MMC card, OCR %08x\n", mmcio->cmd.resp[0]));
 886
 887                 if (mmcp->card_ocr == 0) {
 888                         /* We haven't sent the OCR to the card yet -- do it */
 889                         mmcp->card_ocr = mmcio->cmd.resp[0];
 890                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 891                                   ("-> sending OCR to card\n"));
 892                         break;
 893                 }
 894
 895                 if (!(mmcio->cmd.resp[0] & MMC_OCR_CARD_BUSY)) {
 896                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 897                                   ("Card is still powering up\n"));
 898                         break;
 899                 }
 900
 901                 mmcp->card_features |= CARD_FEATURE_MMC | CARD_FEATURE_MEMORY;
 902                 PROBE_SET_ACTION(softc, PROBE_GET_CID);
 903                 break;
 904         }
 905         case PROBE_SEND_APP_OP_COND:
 906         {
 907                 mmcio = &done_ccb->mmcio;
 908                 err = mmcio->cmd.error;
 909
 910                 if (err != MMC_ERR_NONE) {
 911                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 912                                   ("APP_OP_COND: error %d, resp %08x\n",
 913                                    err, mmcio->cmd.resp[0]));
 914                         PROBE_SET_ACTION(softc, PROBE_MMC_INIT);
 915                         break;
 916                 }
 917
 918                 if (!(softc->flags & PROBE_FLAG_ACMD_SENT)) {
 919                         /* Don't change the state */
 920                         softc->flags |= PROBE_FLAG_ACMD_SENT;
 921                         break;
 922                 }
 923
 924                 softc->flags &= ~PROBE_FLAG_ACMD_SENT;
 925                 if ((mmcio->cmd.resp[0] & MMC_OCR_CARD_BUSY) ||
 926                     (mmcio->cmd.arg & MMC_OCR_VOLTAGE) == 0) {
 927                         struct mmc_params *mmcp = &path->device->mmc_ident_data;
 928                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 929                                   ("Card OCR: %08x\n",  mmcio->cmd.resp[0]));
 930                         if (mmcp->card_ocr == 0) {
 931                                 mmcp->card_ocr = mmcio->cmd.resp[0];
 932                                 /* Now when we know OCR that we want -- send it to card */
 933                                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 934                                           ("-> sending OCR to card\n"));
 935                         } else {
 936                                 /* We already know the OCR and despite of that we
 937                                  * are processing the answer to ACMD41 -> move on
 938                                  */
 939                                 PROBE_SET_ACTION(softc, PROBE_GET_CID);
 940                         }
 941                         /* Getting an answer to ACMD41 means the card has memory */
 942                         mmcp->card_features |= CARD_FEATURE_MEMORY;
 943
 944                         /* Standard capacity vs High Capacity memory card */
 945                         if (mmcio->cmd.resp[0] & MMC_OCR_CCS) {
 946                                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 947                                           ("Card is SDHC\n"));
 948                                 mmcp->card_features |= CARD_FEATURE_SDHC;
 949                         }
 950
 951                         /* Whether the card supports 1.8V signaling */
 952                         if (mmcio->cmd.resp[0] & MMC_OCR_S18A) {
 953                                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 954                                           ("Card supports 1.8V signaling\n"));
 955                                 mmcp->card_features |= CARD_FEATURE_18V;
 956                         }
 957                 } else {
 958                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 959                                   ("Card not ready: %08x\n",  mmcio->cmd.resp[0]));
 960                         /* Send CMD55+ACMD41 once again  */
 961                         PROBE_SET_ACTION(softc, PROBE_SEND_APP_OP_COND);
 962                 }
 963
 964                 break;
 965         }
 966         case PROBE_GET_CID: /* XXX move to mmc_da */
 967         {
 968                 mmcio = &done_ccb->mmcio;
 969                 err = mmcio->cmd.error;
 970
 971                 if (err != MMC_ERR_NONE) {
 972                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 973                                   ("PROBE_GET_CID: error %d\n", err));
 974                         PROBE_SET_ACTION(softc, PROBE_INVALID);
 975                         break;
 976                 }
 977
 978                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
 979                 memcpy(mmcp->card_cid, mmcio->cmd.resp, 4 * sizeof(uint32_t));
 980                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 981                           ("CID %08x%08x%08x%08x\n",
 982                            mmcp->card_cid[0],
 983                            mmcp->card_cid[1],
 984                            mmcp->card_cid[2],
 985                            mmcp->card_cid[3]));
 986                 PROBE_SET_ACTION(softc, PROBE_SEND_RELATIVE_ADDR);
 987                 break;
 988         }
 989         case PROBE_SEND_RELATIVE_ADDR: {
 990                 mmcio = &done_ccb->mmcio;
 991                 err = mmcio->cmd.error;
 992                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
 993                 uint16_t rca = mmcio->cmd.resp[0] >> 16;
 994                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 995                           ("Card published RCA: %u\n", rca));
 996                 path->device->mmc_ident_data.card_rca = rca;
 997                 if (err != MMC_ERR_NONE) {
 998                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
 999                                   ("PROBE_SEND_RELATIVE_ADDR: error %d\n", err));
1000                         PROBE_SET_ACTION(softc, PROBE_INVALID);
1001                         break;
1002                 }
1003
1004                 /* If memory is present, get CSD, otherwise select card */
1005                 if (mmcp->card_features & CARD_FEATURE_MEMORY)
1006                         PROBE_SET_ACTION(softc, PROBE_GET_CSD);
1007                 else
1008                         PROBE_SET_ACTION(softc, PROBE_SELECT_CARD);
1009                 break;
1010         }
1011         case PROBE_GET_CSD: {
1012                 mmcio = &done_ccb->mmcio;
1013                 err = mmcio->cmd.error;
1014
1015                 if (err != MMC_ERR_NONE) {
1016                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1017                                   ("PROBE_GET_CSD: error %d\n", err));
1018                         PROBE_SET_ACTION(softc, PROBE_INVALID);
1019                         break;
1020                 }
1021
1022                 struct mmc_params *mmcp = &path->device->mmc_ident_data;
1023                 memcpy(mmcp->card_csd, mmcio->cmd.resp, 4 * sizeof(uint32_t));
1024                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1025                           ("CSD %08x%08x%08x%08x\n",
1026                            mmcp->card_csd[0],
1027                            mmcp->card_csd[1],
1028                            mmcp->card_csd[2],
1029                            mmcp->card_csd[3]));
1030                 PROBE_SET_ACTION(softc, PROBE_SELECT_CARD);
1031                 break;
1032         }
1033         case PROBE_SELECT_CARD: {
1034                 mmcio = &done_ccb->mmcio;
1035                 err = mmcio->cmd.error;
1036                 if (err != MMC_ERR_NONE) {
1037                         CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1038                                   ("PROBE_SEND_RELATIVE_ADDR: error %d\n", err));
1039                         PROBE_SET_ACTION(softc, PROBE_INVALID);
1040                         break;
1041                 }
1042
1043                 PROBE_SET_ACTION(softc, PROBE_DONE);
1044                 break;
1045         }
1046         default:
1047                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1048                           ("mmc_probedone: invalid action state 0x%x\n", softc->action));
1049                 panic("default: case in mmc_probe_done()");
1050         }
1051
1052         if (softc->action == PROBE_INVALID &&
1053             (path->device->flags & CAM_DEV_UNCONFIGURED) == 0) {
1054                 CAM_DEBUG(done_ccb->ccb_h.path, CAM_DEBUG_PROBE,
1055                           ("mmc_probedone: Should send AC_LOST_DEVICE but won't for now\n"));
1056                 //xpt_async(AC_LOST_DEVICE, path, NULL);
1057         }
1058
1059         xpt_release_ccb(done_ccb);
1060         if (softc->action != PROBE_INVALID)
1061                 xpt_schedule(periph, priority);
1062         /* Drop freeze taken due to CAM_DEV_QFREEZE flag set. */
1063         int frozen = cam_release_devq(path, 0, 0, 0, FALSE);
1064         printf("mmc_probedone: remaining freezecnt %d\n", frozen);
1065
1066         if (softc->action == PROBE_DONE) {
1067                 /* Notify the system that the device is found! */
1068                 if (periph->path->device->flags & CAM_DEV_UNCONFIGURED) {
1069                         path->device->flags &= ~CAM_DEV_UNCONFIGURED;
1070                         xpt_acquire_device(path->device);
1071                         done_ccb->ccb_h.func_code = XPT_GDEV_TYPE;
1072                         xpt_action(done_ccb);
1073                         xpt_async(AC_FOUND_DEVICE, path, done_ccb);
1074                 }
1075         }
1076         if (softc->action == PROBE_DONE || softc->action == PROBE_INVALID) {
1077                 cam_periph_invalidate(periph);
1078                 cam_periph_release_locked(periph);
1079         }
1080 }