mmcsd.c revision 318198
1/*- 2 * Copyright (c) 2006 Bernd Walter. All rights reserved. 3 * Copyright (c) 2006 M. Warner Losh. All rights reserved. 4 * Copyright (c) 2017 Marius Strobl <marius@FreeBSD.org> 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * Portions of this software may have been developed with reference to 27 * the SD Simplified Specification. The following disclaimer may apply: 28 * 29 * The following conditions apply to the release of the simplified 30 * specification ("Simplified Specification") by the SD Card Association and 31 * the SD Group. The Simplified Specification is a subset of the complete SD 32 * Specification which is owned by the SD Card Association and the SD 33 * Group. This Simplified Specification is provided on a non-confidential 34 * basis subject to the disclaimers below. Any implementation of the 35 * Simplified Specification may require a license from the SD Card 36 * Association, SD Group, SD-3C LLC or other third parties. 37 * 38 * Disclaimers: 39 * 40 * The information contained in the Simplified Specification is presented only 41 * as a standard specification for SD Cards and SD Host/Ancillary products and 42 * is provided "AS-IS" without any representations or warranties of any 43 * kind. No responsibility is assumed by the SD Group, SD-3C LLC or the SD 44 * Card Association for any damages, any infringements of patents or other 45 * right of the SD Group, SD-3C LLC, the SD Card Association or any third 46 * parties, which may result from its use. No license is granted by 47 * implication, estoppel or otherwise under any patent or other rights of the 48 * SD Group, SD-3C LLC, the SD Card Association or any third party. Nothing 49 * herein shall be construed as an obligation by the SD Group, the SD-3C LLC 50 * or the SD Card Association to disclose or distribute any technical 51 * information, know-how or other confidential information to any third party. 52 */ 53 54#include <sys/cdefs.h> 55__FBSDID("$FreeBSD: stable/10/sys/dev/mmc/mmcsd.c 318198 2017-05-11 21:01:02Z marius $"); 56 57#include <sys/param.h> 58#include <sys/systm.h> 59#include <sys/bio.h> 60#include <sys/bus.h> 61#include <sys/conf.h> 62#include <sys/fcntl.h> 63#include <sys/ioccom.h> 64#include <sys/kernel.h> 65#include <sys/kthread.h> 66#include <sys/lock.h> 67#include <sys/malloc.h> 68#include <sys/module.h> 69#include <sys/mutex.h> 70#include <sys/slicer.h> 71#include <sys/time.h> 72 73#include <geom/geom.h> 74#include <geom/geom_disk.h> 75 76#include <dev/mmc/bridge.h> 77#include <dev/mmc/mmc_ioctl.h> 78#include <dev/mmc/mmc_subr.h> 79#include <dev/mmc/mmcbrvar.h> 80#include <dev/mmc/mmcreg.h> 81#include <dev/mmc/mmcvar.h> 82 83#include "mmcbus_if.h" 84 85#if __FreeBSD_version < 800002 86#define kproc_create kthread_create 87#define kproc_exit kthread_exit 88#endif 89 90#define MMCSD_CMD_RETRIES 5 91 92#define MMCSD_FMT_BOOT "mmcsd%dboot" 93#define MMCSD_FMT_GP "mmcsd%dgp" 94#define MMCSD_FMT_RPMB "mmcsd%drpmb" 95#define MMCSD_LABEL_ENH "enh" 96 97#define MMCSD_PART_NAMELEN (16 + 1) 98 99struct mmcsd_softc; 100 101struct mmcsd_part { 102 struct mtx part_mtx; 103 struct mmcsd_softc *sc; 104 struct disk *disk; 105 struct proc *p; 106 struct bio_queue_head bio_queue; 107 daddr_t eblock, eend; /* Range remaining after the last erase. */ 108 u_int cnt; 109 u_int type; 110 int running; 111 int suspend; 112 bool ro; 113 char name[MMCSD_PART_NAMELEN]; 114}; 115 116struct mmcsd_softc { 117 device_t dev; 118 device_t mmcbr; 119 struct mmcsd_part *part[MMC_PART_MAX]; 120 enum mmc_card_mode mode; 121 uint8_t part_curr; /* Partition currently switched to */ 122 uint8_t ext_csd[MMC_EXTCSD_SIZE]; 123 uint16_t rca; 124 uint32_t part_time; /* Partition switch timeout [us] */ 125 off_t enh_base; /* Enhanced user data area slice base ... */ 126 off_t enh_size; /* ... and size [bytes] */ 127 int log_count; 128 struct timeval log_time; 129 struct cdev *rpmb_dev; 130}; 131 132static const char *errmsg[] = 133{ 134 "None", 135 "Timeout", 136 "Bad CRC", 137 "Fifo", 138 "Failed", 139 "Invalid", 140 "NO MEMORY" 141}; 142 143#define LOG_PPS 5 /* Log no more than 5 errors per second. */ 144 145/* bus entry points */ 146static int mmcsd_attach(device_t dev); 147static int mmcsd_detach(device_t dev); 148static int mmcsd_probe(device_t dev); 149 150/* disk routines */ 151static int mmcsd_close(struct disk *dp); 152static int mmcsd_dump(void *arg, void *virtual, vm_offset_t physical, 153 off_t offset, size_t length); 154static int mmcsd_getattr(struct bio *); 155static int mmcsd_ioctl_disk(struct disk *disk, u_long cmd, void *data, 156 int fflag, struct thread *td); 157static int mmcsd_open(struct disk *dp); 158static void mmcsd_strategy(struct bio *bp); 159static void mmcsd_task(void *arg); 160 161/* RMPB cdev interface */ 162static int mmcsd_ioctl_rpmb(struct cdev *dev, u_long cmd, caddr_t data, 163 int fflag, struct thread *td); 164 165static void mmcsd_add_part(struct mmcsd_softc *sc, u_int type, 166 const char *name, u_int cnt, off_t media_size, off_t erase_size, bool ro); 167static int mmcsd_bus_bit_width(device_t dev); 168static daddr_t mmcsd_delete(struct mmcsd_part *part, struct bio *bp); 169static int mmcsd_ioctl(struct mmcsd_part *part, u_long cmd, void *data, 170 int fflag); 171static int mmcsd_ioctl_cmd(struct mmcsd_part *part, struct mmc_ioc_cmd *mic, 172 int fflag); 173static uintmax_t mmcsd_pretty_size(off_t size, char *unit); 174static daddr_t mmcsd_rw(struct mmcsd_part *part, struct bio *bp); 175static int mmcsd_set_blockcount(struct mmcsd_softc *sc, u_int count, bool rel); 176static int mmcsd_slicer(device_t dev, const char *provider, 177 struct flash_slice *slices, int *nslices); 178static int mmcsd_switch_part(device_t bus, device_t dev, uint16_t rca, 179 u_int part); 180 181#define MMCSD_PART_LOCK(_part) mtx_lock(&(_part)->part_mtx) 182#define MMCSD_PART_UNLOCK(_part) mtx_unlock(&(_part)->part_mtx) 183#define MMCSD_PART_LOCK_INIT(_part) \ 184 mtx_init(&(_part)->part_mtx, (_part)->name, "mmcsd part", MTX_DEF) 185#define MMCSD_PART_LOCK_DESTROY(_part) mtx_destroy(&(_part)->part_mtx); 186#define MMCSD_PART_ASSERT_LOCKED(_part) \ 187 mtx_assert(&(_part)->part_mtx, MA_OWNED); 188#define MMCSD_PART_ASSERT_UNLOCKED(_part) \ 189 mtx_assert(&(_part)->part_mtx, MA_NOTOWNED); 190 191static int 192mmcsd_probe(device_t dev) 193{ 194 195 device_quiet(dev); 196 device_set_desc(dev, "MMC/SD Memory Card"); 197 return (0); 198} 199 200static int 201mmcsd_attach(device_t dev) 202{ 203 device_t mmcbr; 204 struct mmcsd_softc *sc; 205 const uint8_t *ext_csd; 206 off_t erase_size, sector_size, size, wp_size; 207 uintmax_t bytes; 208 int err, i; 209 uint8_t rev; 210 bool comp, ro; 211 char unit[2]; 212 213 sc = device_get_softc(dev); 214 sc->dev = dev; 215 sc->mmcbr = mmcbr = device_get_parent(dev); 216 sc->mode = mmcbr_get_mode(mmcbr); 217 sc->rca = mmc_get_rca(dev); 218 219 /* Only MMC >= 4.x devices support EXT_CSD. */ 220 if (mmc_get_spec_vers(dev) >= 4) { 221 MMCBUS_ACQUIRE_BUS(mmcbr, dev); 222 err = mmc_send_ext_csd(mmcbr, dev, sc->ext_csd); 223 MMCBUS_RELEASE_BUS(mmcbr, dev); 224 if (err != MMC_ERR_NONE) 225 bzero(sc->ext_csd, sizeof(sc->ext_csd)); 226 } 227 ext_csd = sc->ext_csd; 228 229 /* 230 * Enhanced user data area and general purpose partitions are only 231 * supported in revision 1.4 (EXT_CSD_REV == 4) and later, the RPMB 232 * partition in revision 1.5 (MMC v4.41, EXT_CSD_REV == 5) and later. 233 */ 234 rev = ext_csd[EXT_CSD_REV]; 235 236 /* 237 * Ignore user-creatable enhanced user data area and general purpose 238 * partitions partitions as long as partitioning hasn't been finished. 239 */ 240 comp = (ext_csd[EXT_CSD_PART_SET] & EXT_CSD_PART_SET_COMPLETED) != 0; 241 242 /* 243 * Add enhanced user data area slice, unless it spans the entirety of 244 * the user data area. The enhanced area is of a multiple of high 245 * capacity write protect groups ((ERASE_GRP_SIZE + HC_WP_GRP_SIZE) * 246 * 512 KB) and its offset given in either sectors or bytes, depending 247 * on whether it's a high capacity device or not. 248 * NB: The slicer and its slices need to be registered before adding 249 * the disk for the corresponding user data area as re-tasting is 250 * racy. 251 */ 252 sector_size = mmc_get_sector_size(dev); 253 size = ext_csd[EXT_CSD_ENH_SIZE_MULT] + 254 (ext_csd[EXT_CSD_ENH_SIZE_MULT + 1] << 8) + 255 (ext_csd[EXT_CSD_ENH_SIZE_MULT + 2] << 16); 256 if (rev >= 4 && comp == TRUE && size > 0 && 257 (ext_csd[EXT_CSD_PART_SUPPORT] & 258 EXT_CSD_PART_SUPPORT_ENH_ATTR_EN) != 0 && 259 (ext_csd[EXT_CSD_PART_ATTR] & (EXT_CSD_PART_ATTR_ENH_USR)) != 0) { 260 erase_size = ext_csd[EXT_CSD_ERASE_GRP_SIZE] * 1024 * 261 MMC_SECTOR_SIZE; 262 wp_size = ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; 263 size *= erase_size * wp_size; 264 if (size != mmc_get_media_size(dev) * sector_size) { 265 sc->enh_size = size; 266 sc->enh_base = (ext_csd[EXT_CSD_ENH_START_ADDR] + 267 (ext_csd[EXT_CSD_ENH_START_ADDR + 1] << 8) + 268 (ext_csd[EXT_CSD_ENH_START_ADDR + 2] << 16) + 269 (ext_csd[EXT_CSD_ENH_START_ADDR + 3] << 24)) * 270 (mmc_get_high_cap(dev) ? MMC_SECTOR_SIZE : 1); 271 } else if (bootverbose) 272 device_printf(dev, 273 "enhanced user data area spans entire device\n"); 274 } 275 276 /* 277 * Add default partition. This may be the only one or the user 278 * data area in case partitions are supported. 279 */ 280 ro = mmc_get_read_only(dev); 281 mmcsd_add_part(sc, EXT_CSD_PART_CONFIG_ACC_DEFAULT, "mmcsd", 282 device_get_unit(dev), mmc_get_media_size(dev) * sector_size, 283 mmc_get_erase_sector(dev) * sector_size, ro); 284 285 if (mmc_get_spec_vers(dev) < 3) 286 return (0); 287 288 /* Belatedly announce enhanced user data slice. */ 289 if (sc->enh_size != 0) { 290 bytes = mmcsd_pretty_size(size, unit); 291 printf(FLASH_SLICES_FMT ": %ju%sB enhanced user data area " 292 "slice offset 0x%jx at %s\n", device_get_nameunit(dev), 293 MMCSD_LABEL_ENH, bytes, unit, (uintmax_t)sc->enh_base, 294 device_get_nameunit(dev)); 295 } 296 297 /* 298 * Determine partition switch timeout (provided in units of 10 ms) 299 * and ensure it's at least 300 ms as some eMMC chips lie. 300 */ 301 sc->part_time = max(ext_csd[EXT_CSD_PART_SWITCH_TO] * 10 * 1000, 302 300 * 1000); 303 304 /* Add boot partitions, which are of a fixed multiple of 128 KB. */ 305 size = ext_csd[EXT_CSD_BOOT_SIZE_MULT] * MMC_BOOT_RPMB_BLOCK_SIZE; 306 if (size > 0 && (mmcbr_get_caps(mmcbr) & MMC_CAP_BOOT_NOACC) == 0) { 307 mmcsd_add_part(sc, EXT_CSD_PART_CONFIG_ACC_BOOT0, 308 MMCSD_FMT_BOOT, 0, size, MMC_BOOT_RPMB_BLOCK_SIZE, 309 ro | ((ext_csd[EXT_CSD_BOOT_WP_STATUS] & 310 EXT_CSD_BOOT_WP_STATUS_BOOT0_MASK) != 0)); 311 mmcsd_add_part(sc, EXT_CSD_PART_CONFIG_ACC_BOOT1, 312 MMCSD_FMT_BOOT, 1, size, MMC_BOOT_RPMB_BLOCK_SIZE, 313 ro | ((ext_csd[EXT_CSD_BOOT_WP_STATUS] & 314 EXT_CSD_BOOT_WP_STATUS_BOOT1_MASK) != 0)); 315 } 316 317 /* Add RPMB partition, which also is of a fixed multiple of 128 KB. */ 318 size = ext_csd[EXT_CSD_RPMB_MULT] * MMC_BOOT_RPMB_BLOCK_SIZE; 319 if (rev >= 5 && size > 0) 320 mmcsd_add_part(sc, EXT_CSD_PART_CONFIG_ACC_RPMB, 321 MMCSD_FMT_RPMB, 0, size, MMC_BOOT_RPMB_BLOCK_SIZE, ro); 322 323 if (rev <= 3 || comp == FALSE) 324 return (0); 325 326 /* 327 * Add general purpose partitions, which are of a multiple of high 328 * capacity write protect groups, too. 329 */ 330 if ((ext_csd[EXT_CSD_PART_SUPPORT] & EXT_CSD_PART_SUPPORT_EN) != 0) { 331 erase_size = ext_csd[EXT_CSD_ERASE_GRP_SIZE] * 1024 * 332 MMC_SECTOR_SIZE; 333 wp_size = ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; 334 for (i = 0; i < MMC_PART_GP_MAX; i++) { 335 size = ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3] + 336 (ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3 + 1] << 8) + 337 (ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3 + 2] << 16); 338 if (size == 0) 339 continue; 340 mmcsd_add_part(sc, EXT_CSD_PART_CONFIG_ACC_GP0 + i, 341 MMCSD_FMT_GP, i, size * erase_size * wp_size, 342 erase_size, ro); 343 } 344 } 345 return (0); 346} 347 348static uintmax_t 349mmcsd_pretty_size(off_t size, char *unit) 350{ 351 uintmax_t bytes; 352 int i; 353 354 /* 355 * Display in most natural units. There's no card < 1MB. However, 356 * RPMB partitions occasionally are smaller than that, though. The 357 * SD standard goes to 2 GiB due to its reliance on FAT, but the data 358 * format supports up to 4 GiB and some card makers push it up to this 359 * limit. The SDHC standard only goes to 32 GiB due to FAT32, but the 360 * data format supports up to 2 TiB however. 2048 GB isn't too ugly, 361 * so we note it in passing here and don't add the code to print TB). 362 * Since these cards are sold in terms of MB and GB not MiB and GiB, 363 * report them like that. We also round to the nearest unit, since 364 * many cards are a few percent short, even of the power of 10 size. 365 */ 366 bytes = size; 367 unit[0] = unit[1] = '\0'; 368 for (i = 0; i <= 2 && bytes >= 1000; i++) { 369 bytes = (bytes + 1000 / 2 - 1) / 1000; 370 switch (i) { 371 case 0: 372 unit[0] = 'k'; 373 break; 374 case 1: 375 unit[0] = 'M'; 376 break; 377 case 2: 378 unit[0] = 'G'; 379 break; 380 default: 381 break; 382 } 383 } 384 return (bytes); 385} 386 387static struct cdevsw mmcsd_rpmb_cdevsw = { 388 .d_version = D_VERSION, 389 .d_name = "mmcsdrpmb", 390 .d_ioctl = mmcsd_ioctl_rpmb 391}; 392 393static void 394mmcsd_add_part(struct mmcsd_softc *sc, u_int type, const char *name, u_int cnt, 395 off_t media_size, off_t erase_size, bool ro) 396{ 397 struct make_dev_args args; 398 device_t dev, mmcbr; 399 const char *ext; 400 const uint8_t *ext_csd; 401 struct mmcsd_part *part; 402 struct disk *d; 403 uintmax_t bytes; 404 u_int gp; 405 uint32_t speed; 406 uint8_t extattr; 407 bool enh; 408 char unit[2]; 409 410 dev = sc->dev; 411 mmcbr = sc->mmcbr; 412 part = sc->part[type] = malloc(sizeof(*part), M_DEVBUF, 413 M_WAITOK | M_ZERO); 414 part->sc = sc; 415 part->cnt = cnt; 416 part->type = type; 417 part->ro = ro; 418 snprintf(part->name, sizeof(part->name), name, device_get_unit(dev)); 419 420 /* For the RPMB partition, allow IOCTL access only. */ 421 if (type == EXT_CSD_PART_CONFIG_ACC_RPMB) { 422 make_dev_args_init(&args); 423 args.mda_flags = MAKEDEV_CHECKNAME | MAKEDEV_WAITOK; 424 args.mda_devsw = &mmcsd_rpmb_cdevsw; 425 args.mda_uid = UID_ROOT; 426 args.mda_gid = GID_OPERATOR; 427 args.mda_mode = 0640; 428 args.mda_si_drv1 = part; 429 if (make_dev_s(&args, &sc->rpmb_dev, "%s", part->name) != 0) { 430 device_printf(dev, "Failed to make RPMB device\n"); 431 free(part, M_DEVBUF); 432 return; 433 } 434 } else { 435 MMCSD_PART_LOCK_INIT(part); 436 437 d = part->disk = disk_alloc(); 438 d->d_open = mmcsd_open; 439 d->d_close = mmcsd_close; 440 d->d_strategy = mmcsd_strategy; 441 d->d_ioctl = mmcsd_ioctl_disk; 442 d->d_dump = mmcsd_dump; 443 d->d_getattr = mmcsd_getattr; 444 d->d_name = part->name; 445 d->d_drv1 = part; 446 d->d_sectorsize = mmc_get_sector_size(dev); 447 d->d_maxsize = mmc_get_max_data(dev) * d->d_sectorsize; 448 d->d_mediasize = media_size; 449 d->d_stripesize = erase_size; 450 d->d_unit = cnt; 451 d->d_flags = DISKFLAG_CANDELETE; 452 d->d_delmaxsize = erase_size; 453 strlcpy(d->d_ident, mmc_get_card_sn_string(dev), 454 sizeof(d->d_ident)); 455 strlcpy(d->d_descr, mmc_get_card_id_string(dev), 456 sizeof(d->d_descr)); 457 d->d_rotation_rate = DISK_RR_NON_ROTATING; 458 459 disk_create(d, DISK_VERSION); 460 bioq_init(&part->bio_queue); 461 462 part->running = 1; 463 kproc_create(&mmcsd_task, part, &part->p, 0, 0, 464 "%s%d: mmc/sd card", part->name, cnt); 465 } 466 467 bytes = mmcsd_pretty_size(media_size, unit); 468 if (type == EXT_CSD_PART_CONFIG_ACC_DEFAULT) { 469 speed = mmcbr_get_clock(mmcbr); 470 printf("%s%d: %ju%sB <%s>%s at %s %d.%01dMHz/%dbit/%d-block\n", 471 part->name, cnt, bytes, unit, mmc_get_card_id_string(dev), 472 ro ? " (read-only)" : "", device_get_nameunit(mmcbr), 473 speed / 1000000, (speed / 100000) % 10, 474 mmcsd_bus_bit_width(dev), mmc_get_max_data(dev)); 475 } else if (type == EXT_CSD_PART_CONFIG_ACC_RPMB) { 476 printf("%s: %ju%sB partion %d%s at %s\n", part->name, bytes, 477 unit, type, ro ? " (read-only)" : "", 478 device_get_nameunit(dev)); 479 } else { 480 enh = false; 481 ext = NULL; 482 extattr = 0; 483 if (type >= EXT_CSD_PART_CONFIG_ACC_GP0 && 484 type <= EXT_CSD_PART_CONFIG_ACC_GP3) { 485 ext_csd = sc->ext_csd; 486 gp = type - EXT_CSD_PART_CONFIG_ACC_GP0; 487 if ((ext_csd[EXT_CSD_PART_SUPPORT] & 488 EXT_CSD_PART_SUPPORT_ENH_ATTR_EN) != 0 && 489 (ext_csd[EXT_CSD_PART_ATTR] & 490 (EXT_CSD_PART_ATTR_ENH_GP0 << gp)) != 0) 491 enh = true; 492 else if ((ext_csd[EXT_CSD_PART_SUPPORT] & 493 EXT_CSD_PART_SUPPORT_EXT_ATTR_EN) != 0) { 494 extattr = (ext_csd[EXT_CSD_EXT_PART_ATTR + 495 (gp / 2)] >> (4 * (gp % 2))) & 0xF; 496 switch (extattr) { 497 case EXT_CSD_EXT_PART_ATTR_DEFAULT: 498 break; 499 case EXT_CSD_EXT_PART_ATTR_SYSTEMCODE: 500 ext = "system code"; 501 break; 502 case EXT_CSD_EXT_PART_ATTR_NPERSISTENT: 503 ext = "non-persistent"; 504 break; 505 default: 506 ext = "reserved"; 507 break; 508 } 509 } 510 } 511 if (ext == NULL) 512 printf("%s%d: %ju%sB partion %d%s%s at %s\n", 513 part->name, cnt, bytes, unit, type, enh ? 514 " enhanced" : "", ro ? " (read-only)" : "", 515 device_get_nameunit(dev)); 516 else 517 printf("%s%d: %ju%sB partion %d extended 0x%x " 518 "(%s)%s at %s\n", part->name, cnt, bytes, unit, 519 type, extattr, ext, ro ? " (read-only)" : "", 520 device_get_nameunit(dev)); 521 } 522} 523 524static int 525mmcsd_slicer(device_t dev, const char *provider, 526 struct flash_slice *slices, int *nslices) 527{ 528 char name[MMCSD_PART_NAMELEN]; 529 struct mmcsd_softc *sc; 530 struct mmcsd_part *part; 531 532 *nslices = 0; 533 if (slices == NULL) 534 return (ENOMEM); 535 536 sc = device_get_softc(dev); 537 if (sc->enh_size == 0) 538 return (ENXIO); 539 540 part = sc->part[EXT_CSD_PART_CONFIG_ACC_DEFAULT]; 541 snprintf(name, sizeof(name), "%s%d", part->disk->d_name, 542 part->disk->d_unit); 543 if (strcmp(name, provider) != 0) 544 return (ENXIO); 545 546 *nslices = 1; 547 slices[0].base = sc->enh_base; 548 slices[0].size = sc->enh_size; 549 slices[0].label = MMCSD_LABEL_ENH; 550 return (0); 551} 552 553static int 554mmcsd_detach(device_t dev) 555{ 556 struct mmcsd_softc *sc = device_get_softc(dev); 557 struct mmcsd_part *part; 558 int i; 559 560 for (i = 0; i < MMC_PART_MAX; i++) { 561 part = sc->part[i]; 562 if (part != NULL && part->disk != NULL) { 563 MMCSD_PART_LOCK(part); 564 part->suspend = 0; 565 if (part->running > 0) { 566 /* kill thread */ 567 part->running = 0; 568 wakeup(part); 569 /* wait for thread to finish. */ 570 while (part->running != -1) 571 msleep(part, &part->part_mtx, 0, 572 "detach", 0); 573 } 574 MMCSD_PART_UNLOCK(part); 575 } 576 } 577 578 if (sc->rpmb_dev != NULL) 579 destroy_dev(sc->rpmb_dev); 580 581 for (i = 0; i < MMC_PART_MAX; i++) { 582 part = sc->part[i]; 583 if (part != NULL) { 584 if (part->disk != NULL) { 585 /* Flush the request queue. */ 586 bioq_flush(&part->bio_queue, NULL, ENXIO); 587 /* kill disk */ 588 disk_destroy(part->disk); 589 590 MMCSD_PART_LOCK_DESTROY(part); 591 } 592 free(part, M_DEVBUF); 593 } 594 } 595 return (0); 596} 597 598static int 599mmcsd_suspend(device_t dev) 600{ 601 struct mmcsd_softc *sc = device_get_softc(dev); 602 struct mmcsd_part *part; 603 int i; 604 605 for (i = 0; i < MMC_PART_MAX; i++) { 606 part = sc->part[i]; 607 if (part != NULL && part->disk != NULL) { 608 MMCSD_PART_LOCK(part); 609 part->suspend = 1; 610 if (part->running > 0) { 611 /* kill thread */ 612 part->running = 0; 613 wakeup(part); 614 /* wait for thread to finish. */ 615 while (part->running != -1) 616 msleep(part, &part->part_mtx, 0, 617 "detach", 0); 618 } 619 MMCSD_PART_UNLOCK(part); 620 } 621 } 622 return (0); 623} 624 625static int 626mmcsd_resume(device_t dev) 627{ 628 struct mmcsd_softc *sc = device_get_softc(dev); 629 struct mmcsd_part *part; 630 int i; 631 632 for (i = 0; i < MMC_PART_MAX; i++) { 633 part = sc->part[i]; 634 if (part != NULL && part->disk != NULL) { 635 MMCSD_PART_LOCK(part); 636 part->suspend = 0; 637 if (part->running <= 0) { 638 part->running = 1; 639 kproc_create(&mmcsd_task, part, &part->p, 0, 0, 640 "%s%d: mmc/sd card", part->name, part->cnt); 641 MMCSD_PART_UNLOCK(part); 642 } else 643 MMCSD_PART_UNLOCK(part); 644 } 645 } 646 return (0); 647} 648 649static int 650mmcsd_open(struct disk *dp __unused) 651{ 652 653 return (0); 654} 655 656static int 657mmcsd_close(struct disk *dp __unused) 658{ 659 660 return (0); 661} 662 663static void 664mmcsd_strategy(struct bio *bp) 665{ 666 struct mmcsd_softc *sc; 667 struct mmcsd_part *part; 668 669 part = bp->bio_disk->d_drv1; 670 sc = part->sc; 671 MMCSD_PART_LOCK(part); 672 if (part->running > 0 || part->suspend > 0) { 673 bioq_disksort(&part->bio_queue, bp); 674 MMCSD_PART_UNLOCK(part); 675 wakeup(part); 676 } else { 677 MMCSD_PART_UNLOCK(part); 678 biofinish(bp, NULL, ENXIO); 679 } 680} 681 682static int 683mmcsd_ioctl_rpmb(struct cdev *dev, u_long cmd, caddr_t data, 684 int fflag, struct thread *td __unused) 685{ 686 687 return (mmcsd_ioctl(dev->si_drv1, cmd, data, fflag)); 688} 689 690static int 691mmcsd_ioctl_disk(struct disk *disk, u_long cmd, void *data, int fflag, 692 struct thread *td __unused) 693{ 694 695 return (mmcsd_ioctl(disk->d_drv1, cmd, data, fflag)); 696} 697 698static int 699mmcsd_ioctl(struct mmcsd_part *part, u_long cmd, void *data, int fflag) 700{ 701 struct mmc_ioc_cmd *mic; 702 struct mmc_ioc_multi_cmd *mimc; 703 int i, err; 704 u_long cnt, size; 705 706 if ((fflag & FREAD) == 0) 707 return (EBADF); 708 709 err = 0; 710 switch (cmd) { 711 case MMC_IOC_CMD: 712 mic = data; 713 err = mmcsd_ioctl_cmd(part, data, fflag); 714 break; 715 case MMC_IOC_CMD_MULTI: 716 mimc = data; 717 if (mimc->num_of_cmds == 0) 718 break; 719 if (mimc->num_of_cmds > MMC_IOC_MAX_CMDS) 720 return (EINVAL); 721 cnt = mimc->num_of_cmds; 722 size = sizeof(*mic) * cnt; 723 mic = malloc(size, M_TEMP, M_WAITOK); 724 err = copyin((const void *)mimc->cmds, mic, size); 725 if (err != 0) 726 break; 727 for (i = 0; i < cnt; i++) { 728 err = mmcsd_ioctl_cmd(part, &mic[i], fflag); 729 if (err != 0) 730 break; 731 } 732 free(mic, M_TEMP); 733 break; 734 default: 735 return (ENOIOCTL); 736 } 737 return (err); 738} 739 740static int 741mmcsd_ioctl_cmd(struct mmcsd_part *part, struct mmc_ioc_cmd *mic, int fflag) 742{ 743 struct mmc_command cmd; 744 struct mmc_data data; 745 struct mmcsd_softc *sc; 746 device_t dev, mmcbr; 747 void *dp; 748 u_long len; 749 int err, retries; 750 uint32_t status; 751 uint16_t rca; 752 753 if ((fflag & FWRITE) == 0 && mic->write_flag != 0) 754 return (EBADF); 755 756 if (part->ro == TRUE && mic->write_flag != 0) 757 return (EROFS); 758 759 err = 0; 760 dp = NULL; 761 len = mic->blksz * mic->blocks; 762 if (len > MMC_IOC_MAX_BYTES) 763 return (EOVERFLOW); 764 if (len != 0) { 765 dp = malloc(len, M_TEMP, M_WAITOK); 766 err = copyin((void *)(uintptr_t)mic->data_ptr, dp, len); 767 if (err != 0) 768 goto out; 769 } 770 memset(&cmd, 0, sizeof(cmd)); 771 memset(&data, 0, sizeof(data)); 772 cmd.opcode = mic->opcode; 773 cmd.arg = mic->arg; 774 cmd.flags = mic->flags; 775 if (len != 0) { 776 data.len = len; 777 data.data = dp; 778 data.flags = mic->write_flag != 0 ? MMC_DATA_WRITE : 779 MMC_DATA_READ; 780 cmd.data = &data; 781 } 782 sc = part->sc; 783 rca = sc->rca; 784 if (mic->is_acmd == 0) { 785 /* Enforce/patch/restrict RCA-based commands */ 786 switch (cmd.opcode) { 787 case MMC_SET_RELATIVE_ADDR: 788 case MMC_SELECT_CARD: 789 err = EPERM; 790 goto out; 791 case MMC_STOP_TRANSMISSION: 792 if ((cmd.arg & 0x1) == 0) 793 break; 794 /* FALLTHROUGH */ 795 case MMC_SLEEP_AWAKE: 796 case MMC_SEND_CSD: 797 case MMC_SEND_CID: 798 case MMC_SEND_STATUS: 799 case MMC_GO_INACTIVE_STATE: 800 case MMC_FAST_IO: 801 case MMC_APP_CMD: 802 cmd.arg = (cmd.arg & 0x0000FFFF) | (rca << 16); 803 break; 804 default: 805 break; 806 } 807 } 808 dev = sc->dev; 809 mmcbr = sc->mmcbr; 810 MMCBUS_ACQUIRE_BUS(mmcbr, dev); 811 err = mmcsd_switch_part(mmcbr, dev, rca, part->type); 812 if (err != MMC_ERR_NONE) 813 goto release; 814 if (part->type == EXT_CSD_PART_CONFIG_ACC_RPMB) { 815 err = mmcsd_set_blockcount(sc, mic->blocks, 816 mic->write_flag & (1 << 31)); 817 if (err != MMC_ERR_NONE) 818 goto release; 819 } 820 if (mic->is_acmd != 0) 821 (void)mmc_wait_for_app_cmd(mmcbr, dev, rca, &cmd, 0); 822 else 823 (void)mmc_wait_for_cmd(mmcbr, dev, &cmd, 0); 824 if (part->type == EXT_CSD_PART_CONFIG_ACC_RPMB) { 825 /* 826 * If the request went to the RPMB partition, try to ensure 827 * that the command actually has completed ... 828 */ 829 retries = MMCSD_CMD_RETRIES; 830 do { 831 err = mmc_send_status(mmcbr, dev, rca, &status); 832 if (err != MMC_ERR_NONE) 833 break; 834 if (R1_STATUS(status) == 0 && 835 R1_CURRENT_STATE(status) != R1_STATE_PRG) 836 break; 837 DELAY(1000); 838 } while (retries-- > 0); 839 840 /* ... and always switch back to the default partition. */ 841 err = mmcsd_switch_part(mmcbr, dev, rca, 842 EXT_CSD_PART_CONFIG_ACC_DEFAULT); 843 if (err != MMC_ERR_NONE) 844 goto release; 845 } 846 /* 847 * If EXT_CSD was changed, our copy is outdated now. Specifically, 848 * the upper bits of EXT_CSD_PART_CONFIG used in mmcsd_switch_part(), 849 * so retrieve EXT_CSD again. 850 */ 851 if (cmd.opcode == MMC_SWITCH_FUNC) { 852 err = mmc_send_ext_csd(mmcbr, dev, sc->ext_csd); 853 if (err != MMC_ERR_NONE) 854 goto release; 855 } 856 MMCBUS_RELEASE_BUS(mmcbr, dev); 857 if (cmd.error != MMC_ERR_NONE) { 858 switch (cmd.error) { 859 case MMC_ERR_TIMEOUT: 860 err = ETIMEDOUT; 861 break; 862 case MMC_ERR_BADCRC: 863 err = EILSEQ; 864 break; 865 case MMC_ERR_INVALID: 866 err = EINVAL; 867 break; 868 case MMC_ERR_NO_MEMORY: 869 err = ENOMEM; 870 break; 871 default: 872 err = EIO; 873 break; 874 } 875 goto out; 876 } 877 memcpy(mic->response, cmd.resp, 4 * sizeof(uint32_t)); 878 if (mic->write_flag == 0 && len != 0) { 879 err = copyout(dp, (void *)(uintptr_t)mic->data_ptr, len); 880 if (err != 0) 881 goto out; 882 } 883 goto out; 884 885release: 886 MMCBUS_RELEASE_BUS(mmcbr, dev); 887 err = EIO; 888 889out: 890 if (dp != NULL) 891 free(dp, M_TEMP); 892 return (err); 893} 894 895static int 896mmcsd_getattr(struct bio *bp) 897{ 898 struct mmcsd_part *part; 899 device_t dev; 900 901 if (strcmp(bp->bio_attribute, "MMC::device") == 0) { 902 if (bp->bio_length != sizeof(dev)) 903 return (EFAULT); 904 part = bp->bio_disk->d_drv1; 905 dev = part->sc->dev; 906 bcopy(&dev, bp->bio_data, sizeof(dev)); 907 bp->bio_completed = bp->bio_length; 908 return (0); 909 } 910 return (-1); 911} 912 913static int 914mmcsd_set_blockcount(struct mmcsd_softc *sc, u_int count, bool reliable) 915{ 916 struct mmc_command cmd; 917 struct mmc_request req; 918 919 memset(&req, 0, sizeof(req)); 920 memset(&cmd, 0, sizeof(cmd)); 921 cmd.mrq = &req; 922 req.cmd = &cmd; 923 cmd.opcode = MMC_SET_BLOCK_COUNT; 924 cmd.arg = count & 0x0000FFFF; 925 if (reliable) 926 cmd.arg |= 1 << 31; 927 cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 928 MMCBUS_WAIT_FOR_REQUEST(sc->mmcbr, sc->dev, &req); 929 return (cmd.error); 930} 931 932static int 933mmcsd_switch_part(device_t bus, device_t dev, uint16_t rca, u_int part) 934{ 935 struct mmcsd_softc *sc; 936 int err; 937 uint8_t value; 938 939 sc = device_get_softc(dev); 940 941 if (sc->part_curr == part) 942 return (MMC_ERR_NONE); 943 944 if (sc->mode == mode_sd) 945 return (MMC_ERR_NONE); 946 947 value = (sc->ext_csd[EXT_CSD_PART_CONFIG] & 948 ~EXT_CSD_PART_CONFIG_ACC_MASK) | part; 949 /* Jump! */ 950 err = mmc_switch(bus, dev, rca, EXT_CSD_CMD_SET_NORMAL, 951 EXT_CSD_PART_CONFIG, value, sc->part_time, true); 952 if (err != MMC_ERR_NONE) 953 return (err); 954 955 sc->ext_csd[EXT_CSD_PART_CONFIG] = value; 956 sc->part_curr = part; 957 return (MMC_ERR_NONE); 958} 959 960static const char * 961mmcsd_errmsg(int e) 962{ 963 964 if (e < 0 || e > MMC_ERR_MAX) 965 return "Bad error code"; 966 return errmsg[e]; 967} 968 969static daddr_t 970mmcsd_rw(struct mmcsd_part *part, struct bio *bp) 971{ 972 daddr_t block, end; 973 struct mmc_command cmd; 974 struct mmc_command stop; 975 struct mmc_request req; 976 struct mmc_data data; 977 struct mmcsd_softc *sc; 978 device_t dev, mmcbr; 979 int numblocks, sz; 980 char *vaddr; 981 982 sc = part->sc; 983 dev = sc->dev; 984 mmcbr = sc->mmcbr; 985 986 block = bp->bio_pblkno; 987 sz = part->disk->d_sectorsize; 988 end = bp->bio_pblkno + (bp->bio_bcount / sz); 989 while (block < end) { 990 vaddr = bp->bio_data + (block - bp->bio_pblkno) * sz; 991 numblocks = min(end - block, mmc_get_max_data(dev)); 992 memset(&req, 0, sizeof(req)); 993 memset(&cmd, 0, sizeof(cmd)); 994 memset(&stop, 0, sizeof(stop)); 995 memset(&data, 0, sizeof(data)); 996 cmd.mrq = &req; 997 req.cmd = &cmd; 998 cmd.data = &data; 999 if (bp->bio_cmd == BIO_READ) { 1000 if (numblocks > 1) 1001 cmd.opcode = MMC_READ_MULTIPLE_BLOCK; 1002 else 1003 cmd.opcode = MMC_READ_SINGLE_BLOCK; 1004 } else { 1005 if (numblocks > 1) 1006 cmd.opcode = MMC_WRITE_MULTIPLE_BLOCK; 1007 else 1008 cmd.opcode = MMC_WRITE_BLOCK; 1009 } 1010 cmd.arg = block; 1011 if (!mmc_get_high_cap(dev)) 1012 cmd.arg <<= 9; 1013 cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; 1014 data.data = vaddr; 1015 data.mrq = &req; 1016 if (bp->bio_cmd == BIO_READ) 1017 data.flags = MMC_DATA_READ; 1018 else 1019 data.flags = MMC_DATA_WRITE; 1020 data.len = numblocks * sz; 1021 if (numblocks > 1) { 1022 data.flags |= MMC_DATA_MULTI; 1023 stop.opcode = MMC_STOP_TRANSMISSION; 1024 stop.arg = 0; 1025 stop.flags = MMC_RSP_R1B | MMC_CMD_AC; 1026 stop.mrq = &req; 1027 req.stop = &stop; 1028 } 1029 MMCBUS_WAIT_FOR_REQUEST(mmcbr, dev, &req); 1030 if (req.cmd->error != MMC_ERR_NONE) { 1031 if (ppsratecheck(&sc->log_time, &sc->log_count, 1032 LOG_PPS)) 1033 device_printf(dev, "Error indicated: %d %s\n", 1034 req.cmd->error, 1035 mmcsd_errmsg(req.cmd->error)); 1036 break; 1037 } 1038 block += numblocks; 1039 } 1040 return (block); 1041} 1042 1043static daddr_t 1044mmcsd_delete(struct mmcsd_part *part, struct bio *bp) 1045{ 1046 daddr_t block, end, start, stop; 1047 struct mmc_command cmd; 1048 struct mmc_request req; 1049 struct mmcsd_softc *sc; 1050 device_t dev, mmcbr; 1051 int erase_sector, sz; 1052 1053 sc = part->sc; 1054 dev = sc->dev; 1055 mmcbr = sc->mmcbr; 1056 1057 block = bp->bio_pblkno; 1058 sz = part->disk->d_sectorsize; 1059 end = bp->bio_pblkno + (bp->bio_bcount / sz); 1060 /* Coalesce with part remaining from previous request. */ 1061 if (block > part->eblock && block <= part->eend) 1062 block = part->eblock; 1063 if (end >= part->eblock && end < part->eend) 1064 end = part->eend; 1065 /* Safe round to the erase sector boundaries. */ 1066 erase_sector = mmc_get_erase_sector(dev); 1067 start = block + erase_sector - 1; /* Round up. */ 1068 start -= start % erase_sector; 1069 stop = end; /* Round down. */ 1070 stop -= end % erase_sector; 1071 /* We can't erase an area smaller than a sector, store it for later. */ 1072 if (start >= stop) { 1073 part->eblock = block; 1074 part->eend = end; 1075 return (end); 1076 } 1077 1078 /* Set erase start position. */ 1079 memset(&req, 0, sizeof(req)); 1080 memset(&cmd, 0, sizeof(cmd)); 1081 cmd.mrq = &req; 1082 req.cmd = &cmd; 1083 if (mmc_get_card_type(dev) == mode_sd) 1084 cmd.opcode = SD_ERASE_WR_BLK_START; 1085 else 1086 cmd.opcode = MMC_ERASE_GROUP_START; 1087 cmd.arg = start; 1088 if (!mmc_get_high_cap(dev)) 1089 cmd.arg <<= 9; 1090 cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 1091 MMCBUS_WAIT_FOR_REQUEST(mmcbr, dev, &req); 1092 if (req.cmd->error != MMC_ERR_NONE) { 1093 printf("erase err1: %d\n", req.cmd->error); 1094 return (block); 1095 } 1096 /* Set erase stop position. */ 1097 memset(&req, 0, sizeof(req)); 1098 memset(&cmd, 0, sizeof(cmd)); 1099 req.cmd = &cmd; 1100 if (mmc_get_card_type(dev) == mode_sd) 1101 cmd.opcode = SD_ERASE_WR_BLK_END; 1102 else 1103 cmd.opcode = MMC_ERASE_GROUP_END; 1104 cmd.arg = stop; 1105 if (!mmc_get_high_cap(dev)) 1106 cmd.arg <<= 9; 1107 cmd.arg--; 1108 cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 1109 MMCBUS_WAIT_FOR_REQUEST(mmcbr, dev, &req); 1110 if (req.cmd->error != MMC_ERR_NONE) { 1111 printf("erase err2: %d\n", req.cmd->error); 1112 return (block); 1113 } 1114 /* Erase range. */ 1115 memset(&req, 0, sizeof(req)); 1116 memset(&cmd, 0, sizeof(cmd)); 1117 req.cmd = &cmd; 1118 cmd.opcode = MMC_ERASE; 1119 cmd.arg = 0; 1120 cmd.flags = MMC_RSP_R1B | MMC_CMD_AC; 1121 MMCBUS_WAIT_FOR_REQUEST(mmcbr, dev, &req); 1122 if (req.cmd->error != MMC_ERR_NONE) { 1123 printf("erase err3 %d\n", req.cmd->error); 1124 return (block); 1125 } 1126 /* Store one of remaining parts for the next call. */ 1127 if (bp->bio_pblkno >= part->eblock || block == start) { 1128 part->eblock = stop; /* Predict next forward. */ 1129 part->eend = end; 1130 } else { 1131 part->eblock = block; /* Predict next backward. */ 1132 part->eend = start; 1133 } 1134 return (end); 1135} 1136 1137static int 1138mmcsd_dump(void *arg, void *virtual, vm_offset_t physical, off_t offset, 1139 size_t length) 1140{ 1141 struct bio bp; 1142 daddr_t block, end; 1143 struct disk *disk; 1144 struct mmcsd_softc *sc; 1145 struct mmcsd_part *part; 1146 device_t dev, mmcbr; 1147 int err; 1148 1149 /* length zero is special and really means flush buffers to media */ 1150 if (!length) 1151 return (0); 1152 1153 disk = arg; 1154 part = disk->d_drv1; 1155 sc = part->sc; 1156 dev = sc->dev; 1157 mmcbr = sc->mmcbr; 1158 1159 bzero(&bp, sizeof(struct bio)); 1160 bp.bio_disk = disk; 1161 bp.bio_pblkno = offset / disk->d_sectorsize; 1162 bp.bio_bcount = length; 1163 bp.bio_data = virtual; 1164 bp.bio_cmd = BIO_WRITE; 1165 end = bp.bio_pblkno + bp.bio_bcount / disk->d_sectorsize; 1166 MMCBUS_ACQUIRE_BUS(mmcbr, dev); 1167 err = mmcsd_switch_part(mmcbr, dev, sc->rca, part->type); 1168 if (err != MMC_ERR_NONE) { 1169 if (ppsratecheck(&sc->log_time, &sc->log_count, LOG_PPS)) 1170 device_printf(dev, "Partition switch error\n"); 1171 MMCBUS_RELEASE_BUS(mmcbr, dev); 1172 return (EIO); 1173 } 1174 block = mmcsd_rw(part, &bp); 1175 MMCBUS_RELEASE_BUS(mmcbr, dev); 1176 return ((end < block) ? EIO : 0); 1177} 1178 1179static void 1180mmcsd_task(void *arg) 1181{ 1182 daddr_t block, end; 1183 struct mmcsd_part *part; 1184 struct mmcsd_softc *sc; 1185 struct bio *bp; 1186 device_t dev, mmcbr; 1187 int err, sz; 1188 1189 part = arg; 1190 sc = part->sc; 1191 dev = sc->dev; 1192 mmcbr = sc->mmcbr; 1193 1194 while (1) { 1195 MMCSD_PART_LOCK(part); 1196 do { 1197 if (part->running == 0) 1198 goto out; 1199 bp = bioq_takefirst(&part->bio_queue); 1200 if (bp == NULL) 1201 msleep(part, &part->part_mtx, PRIBIO, 1202 "jobqueue", 0); 1203 } while (bp == NULL); 1204 MMCSD_PART_UNLOCK(part); 1205 if (bp->bio_cmd != BIO_READ && part->ro) { 1206 bp->bio_error = EROFS; 1207 bp->bio_resid = bp->bio_bcount; 1208 bp->bio_flags |= BIO_ERROR; 1209 biodone(bp); 1210 continue; 1211 } 1212 MMCBUS_ACQUIRE_BUS(mmcbr, dev); 1213 sz = part->disk->d_sectorsize; 1214 block = bp->bio_pblkno; 1215 end = bp->bio_pblkno + (bp->bio_bcount / sz); 1216 err = mmcsd_switch_part(mmcbr, dev, sc->rca, part->type); 1217 if (err != MMC_ERR_NONE) { 1218 if (ppsratecheck(&sc->log_time, &sc->log_count, 1219 LOG_PPS)) 1220 device_printf(dev, "Partition switch error\n"); 1221 goto release; 1222 } 1223 if (bp->bio_cmd == BIO_READ || bp->bio_cmd == BIO_WRITE) { 1224 /* Access to the remaining erase block obsoletes it. */ 1225 if (block < part->eend && end > part->eblock) 1226 part->eblock = part->eend = 0; 1227 block = mmcsd_rw(part, bp); 1228 } else if (bp->bio_cmd == BIO_DELETE) { 1229 block = mmcsd_delete(part, bp); 1230 } 1231release: 1232 MMCBUS_RELEASE_BUS(mmcbr, dev); 1233 if (block < end) { 1234 bp->bio_error = EIO; 1235 bp->bio_resid = (end - block) * sz; 1236 bp->bio_flags |= BIO_ERROR; 1237 } else { 1238 bp->bio_resid = 0; 1239 } 1240 biodone(bp); 1241 } 1242out: 1243 /* tell parent we're done */ 1244 part->running = -1; 1245 MMCSD_PART_UNLOCK(part); 1246 wakeup(part); 1247 1248 kproc_exit(0); 1249} 1250 1251static int 1252mmcsd_bus_bit_width(device_t dev) 1253{ 1254 1255 if (mmc_get_bus_width(dev) == bus_width_1) 1256 return (1); 1257 if (mmc_get_bus_width(dev) == bus_width_4) 1258 return (4); 1259 return (8); 1260} 1261 1262static device_method_t mmcsd_methods[] = { 1263 DEVMETHOD(device_probe, mmcsd_probe), 1264 DEVMETHOD(device_attach, mmcsd_attach), 1265 DEVMETHOD(device_detach, mmcsd_detach), 1266 DEVMETHOD(device_suspend, mmcsd_suspend), 1267 DEVMETHOD(device_resume, mmcsd_resume), 1268 DEVMETHOD_END 1269}; 1270 1271static driver_t mmcsd_driver = { 1272 "mmcsd", 1273 mmcsd_methods, 1274 sizeof(struct mmcsd_softc), 1275}; 1276static devclass_t mmcsd_devclass; 1277 1278static int 1279mmcsd_handler(module_t mod __unused, int what, void *arg __unused) 1280{ 1281 1282 switch (what) { 1283 case MOD_LOAD: 1284 flash_register_slicer(mmcsd_slicer, FLASH_SLICES_TYPE_MMC, 1285 TRUE); 1286 return (0); 1287 case MOD_UNLOAD: 1288 flash_register_slicer(NULL, FLASH_SLICES_TYPE_MMC, TRUE); 1289 return (0); 1290 } 1291 return (0); 1292} 1293 1294DRIVER_MODULE(mmcsd, mmc, mmcsd_driver, mmcsd_devclass, mmcsd_handler, NULL); 1295MODULE_DEPEND(mmcsd, g_flashmap, 0, 0, 0); 1296MMC_DEPEND(mmcsd); 1297