1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2006 Bernd Walter <tisco@FreeBSD.org> All rights reserved. 5 * Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org> All rights reserved. 6 * Copyright (c) 2015-2017 Ilya Bakulin <kibab@FreeBSD.org> All rights reserved. 7 * Copyright (c) 2006 M. Warner Losh <imp@FreeBSD.org> 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer, 14 * without modification, immediately at the beginning of the file. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * 30 * Some code derived from the sys/dev/mmc and sys/cam/ata 31 * Thanks to Warner Losh <imp@FreeBSD.org>, Alexander Motin <mav@FreeBSD.org> 32 * Bernd Walter <tisco@FreeBSD.org>, and other authors. 33 */ 34 35 #include <sys/cdefs.h> 36 //#include "opt_sdda.h" 37 38 #include <sys/param.h> 39 40 #ifdef _KERNEL 41 #include <sys/systm.h> 42 #include <sys/kernel.h> 43 #include <sys/bio.h> 44 #include <sys/sysctl.h> 45 #include <sys/endian.h> 46 #include <sys/taskqueue.h> 47 #include <sys/lock.h> 48 #include <sys/mutex.h> 49 #include <sys/conf.h> 50 #include <sys/devicestat.h> 51 #include <sys/eventhandler.h> 52 #include <sys/malloc.h> 53 #include <sys/cons.h> 54 #include <sys/proc.h> 55 #include <sys/reboot.h> 56 #include <geom/geom_disk.h> 57 #include <machine/_inttypes.h> /* for PRIu64 */ 58 #endif /* _KERNEL */ 59 60 #ifndef _KERNEL 61 #include <stdio.h> 62 #include <string.h> 63 #endif /* _KERNEL */ 64 65 #include <cam/cam.h> 66 #include <cam/cam_ccb.h> 67 #include <cam/cam_queue.h> 68 #include <cam/cam_periph.h> 69 #include <cam/cam_sim.h> 70 #include <cam/cam_xpt.h> 71 #include <cam/cam_xpt_sim.h> 72 #include <cam/cam_xpt_periph.h> 73 #include <cam/cam_xpt_internal.h> 74 #include <cam/cam_debug.h> 75 76 #include <cam/mmc/mmc_all.h> 77 78 #ifdef _KERNEL 79 80 typedef enum { 81 SDDA_FLAG_OPEN = 0x0002, 82 SDDA_FLAG_DIRTY = 0x0004 83 } sdda_flags; 84 85 typedef enum { 86 SDDA_STATE_INIT, 87 SDDA_STATE_INVALID, 88 SDDA_STATE_NORMAL, 89 SDDA_STATE_PART_SWITCH, 90 } sdda_state; 91 92 #define SDDA_FMT_BOOT "sdda%dboot" 93 #define SDDA_FMT_GP "sdda%dgp" 94 #define SDDA_FMT_RPMB "sdda%drpmb" 95 #define SDDA_LABEL_ENH "enh" 96 97 #define SDDA_PART_NAMELEN (16 + 1) 98 99 struct sdda_softc; 100 101 struct sdda_part { 102 struct disk *disk; 103 struct bio_queue_head bio_queue; 104 sdda_flags flags; 105 struct sdda_softc *sc; 106 u_int cnt; 107 u_int type; 108 bool ro; 109 char name[SDDA_PART_NAMELEN]; 110 }; 111 112 struct sdda_softc { 113 int outstanding_cmds; /* Number of active commands */ 114 int refcount; /* Active xpt_action() calls */ 115 sdda_state state; 116 struct mmc_data *mmcdata; 117 struct cam_periph *periph; 118 // sdda_quirks quirks; 119 struct task start_init_task; 120 uint32_t raw_csd[4]; 121 uint8_t raw_ext_csd[512]; /* MMC only? */ 122 struct mmc_csd csd; 123 struct mmc_cid cid; 124 struct mmc_scr scr; 125 /* Calculated from CSD */ 126 uint64_t sector_count; 127 uint64_t mediasize; 128 129 /* Calculated from CID */ 130 char card_id_string[64];/* Formatted CID info (serial, MFG, etc) */ 131 char card_sn_string[16];/* Formatted serial # for disk->d_ident */ 132 /* Determined from CSD + is highspeed card*/ 133 uint32_t card_f_max; 134 135 /* Generic switch timeout */ 136 uint32_t cmd6_time; 137 uint32_t timings; /* Mask of bus timings supported */ 138 uint32_t vccq_120; /* Mask of bus timings at VCCQ of 1.2 V */ 139 uint32_t vccq_180; /* Mask of bus timings at VCCQ of 1.8 V */ 140 /* MMC partitions support */ 141 struct sdda_part *part[MMC_PART_MAX]; 142 uint8_t part_curr; /* Partition currently switched to */ 143 uint8_t part_requested; /* What partition we're currently switching to */ 144 uint32_t part_time; /* Partition switch timeout [us] */ 145 off_t enh_base; /* Enhanced user data area slice base ... */ 146 off_t enh_size; /* ... and size [bytes] */ 147 int log_count; 148 struct timeval log_time; 149 }; 150 151 static const char *mmc_errmsg[] = 152 { 153 "None", 154 "Timeout", 155 "Bad CRC", 156 "Fifo", 157 "Failed", 158 "Invalid", 159 "NO MEMORY" 160 }; 161 162 #define ccb_bp ppriv_ptr1 163 164 static disk_strategy_t sddastrategy; 165 static dumper_t sddadump; 166 static periph_init_t sddainit; 167 static void sddaasync(void *callback_arg, uint32_t code, 168 struct cam_path *path, void *arg); 169 static periph_ctor_t sddaregister; 170 static periph_dtor_t sddacleanup; 171 static periph_start_t sddastart; 172 static periph_oninv_t sddaoninvalidate; 173 static void sddadone(struct cam_periph *periph, 174 union ccb *done_ccb); 175 static int sddaerror(union ccb *ccb, uint32_t cam_flags, 176 uint32_t sense_flags); 177 178 static int mmc_handle_reply(union ccb *ccb); 179 static uint16_t get_rca(struct cam_periph *periph); 180 static void sdda_start_init(void *context, union ccb *start_ccb); 181 static void sdda_start_init_task(void *context, int pending); 182 static void sdda_process_mmc_partitions(struct cam_periph *periph, union ccb *start_ccb); 183 static uint32_t sdda_get_host_caps(struct cam_periph *periph, union ccb *ccb); 184 static int mmc_select_card(struct cam_periph *periph, union ccb *ccb, uint32_t rca); 185 static inline uint32_t mmc_get_sector_size(struct cam_periph *periph) {return MMC_SECTOR_SIZE;} 186 187 static SYSCTL_NODE(_kern_cam, OID_AUTO, sdda, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 188 "CAM Direct Access Disk driver"); 189 190 static int sdda_mmcsd_compat = 1; 191 SYSCTL_INT(_kern_cam_sdda, OID_AUTO, mmcsd_compat, CTLFLAG_RDTUN, 192 &sdda_mmcsd_compat, 1, "Enable creation of mmcsd aliases."); 193 194 /* TODO: actually issue GET_TRAN_SETTINGS to get R/O status */ 195 static inline bool sdda_get_read_only(struct cam_periph *periph, union ccb *start_ccb) 196 { 197 198 return (false); 199 } 200 201 static uint32_t mmc_get_spec_vers(struct cam_periph *periph); 202 static uint64_t mmc_get_media_size(struct cam_periph *periph); 203 static uint32_t mmc_get_cmd6_timeout(struct cam_periph *periph); 204 static bool sdda_add_part(struct cam_periph *periph, u_int type, 205 const char *name, u_int cnt, off_t media_size, bool ro); 206 207 static struct periph_driver sddadriver = 208 { 209 sddainit, "sdda", 210 TAILQ_HEAD_INITIALIZER(sddadriver.units), /* generation */ 0 211 }; 212 213 PERIPHDRIVER_DECLARE(sdda, sddadriver); 214 215 static MALLOC_DEFINE(M_SDDA, "sd_da", "sd_da buffers"); 216 217 static const int exp[8] = { 218 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000 219 }; 220 221 static const int mant[16] = { 222 0, 10, 12, 13, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70, 80 223 }; 224 225 static const int cur_min[8] = { 226 500, 1000, 5000, 10000, 25000, 35000, 60000, 100000 227 }; 228 229 static const int cur_max[8] = { 230 1000, 5000, 10000, 25000, 35000, 45000, 800000, 200000 231 }; 232 233 static uint16_t 234 get_rca(struct cam_periph *periph) { 235 return periph->path->device->mmc_ident_data.card_rca; 236 } 237 238 /* 239 * Figure out if CCB execution resulted in error. 240 * Look at both CAM-level errors and on MMC protocol errors. 241 * 242 * Return value is always MMC error. 243 */ 244 static int 245 mmc_handle_reply(union ccb *ccb) 246 { 247 KASSERT(ccb->ccb_h.func_code == XPT_MMC_IO, 248 ("ccb %p: cannot handle non-XPT_MMC_IO errors, got func_code=%d", 249 ccb, ccb->ccb_h.func_code)); 250 251 /* CAM-level error should always correspond to MMC-level error */ 252 if (((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) && 253 (ccb->mmcio.cmd.error != MMC_ERR_NONE)) 254 panic("CCB status is OK but MMC error != MMC_ERR_NONE"); 255 256 if (ccb->mmcio.cmd.error != MMC_ERR_NONE) { 257 xpt_print_path(ccb->ccb_h.path); 258 printf("CMD%d failed, err %d (%s)\n", 259 ccb->mmcio.cmd.opcode, 260 ccb->mmcio.cmd.error, 261 mmc_errmsg[ccb->mmcio.cmd.error]); 262 } 263 return (ccb->mmcio.cmd.error); 264 } 265 266 static uint32_t 267 mmc_get_bits(uint32_t *bits, int bit_len, int start, int size) 268 { 269 const int i = (bit_len / 32) - (start / 32) - 1; 270 const int shift = start & 31; 271 uint32_t retval = bits[i] >> shift; 272 if (size + shift > 32) 273 retval |= bits[i - 1] << (32 - shift); 274 return (retval & ((1llu << size) - 1)); 275 } 276 277 static void 278 mmc_decode_csd_sd(uint32_t *raw_csd, struct mmc_csd *csd) 279 { 280 int v; 281 int m; 282 int e; 283 284 memset(csd, 0, sizeof(*csd)); 285 csd->csd_structure = v = mmc_get_bits(raw_csd, 128, 126, 2); 286 287 /* Common members between 1.0 and 2.0 */ 288 m = mmc_get_bits(raw_csd, 128, 115, 4); 289 e = mmc_get_bits(raw_csd, 128, 112, 3); 290 csd->tacc = (exp[e] * mant[m] + 9) / 10; 291 csd->nsac = mmc_get_bits(raw_csd, 128, 104, 8) * 100; 292 m = mmc_get_bits(raw_csd, 128, 99, 4); 293 e = mmc_get_bits(raw_csd, 128, 96, 3); 294 csd->tran_speed = exp[e] * 10000 * mant[m]; 295 csd->ccc = mmc_get_bits(raw_csd, 128, 84, 12); 296 csd->read_bl_len = 1 << mmc_get_bits(raw_csd, 128, 80, 4); 297 csd->read_bl_partial = mmc_get_bits(raw_csd, 128, 79, 1); 298 csd->write_blk_misalign = mmc_get_bits(raw_csd, 128, 78, 1); 299 csd->read_blk_misalign = mmc_get_bits(raw_csd, 128, 77, 1); 300 csd->dsr_imp = mmc_get_bits(raw_csd, 128, 76, 1); 301 csd->erase_blk_en = mmc_get_bits(raw_csd, 128, 46, 1); 302 csd->erase_sector = mmc_get_bits(raw_csd, 128, 39, 7) + 1; 303 csd->wp_grp_size = mmc_get_bits(raw_csd, 128, 32, 7); 304 csd->wp_grp_enable = mmc_get_bits(raw_csd, 128, 31, 1); 305 csd->r2w_factor = 1 << mmc_get_bits(raw_csd, 128, 26, 3); 306 csd->write_bl_len = 1 << mmc_get_bits(raw_csd, 128, 22, 4); 307 csd->write_bl_partial = mmc_get_bits(raw_csd, 128, 21, 1); 308 309 if (v == 0) { 310 csd->vdd_r_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 59, 3)]; 311 csd->vdd_r_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 56, 3)]; 312 csd->vdd_w_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 53, 3)]; 313 csd->vdd_w_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 50, 3)]; 314 m = mmc_get_bits(raw_csd, 128, 62, 12); 315 e = mmc_get_bits(raw_csd, 128, 47, 3); 316 csd->capacity = ((1 + m) << (e + 2)) * csd->read_bl_len; 317 } else if (v == 1) { 318 csd->capacity = ((uint64_t)mmc_get_bits(raw_csd, 128, 48, 22) + 1) * 319 512 * 1024; 320 } else 321 panic("unknown SD CSD version"); 322 } 323 324 static void 325 mmc_decode_csd_mmc(uint32_t *raw_csd, struct mmc_csd *csd) 326 { 327 int m; 328 int e; 329 330 memset(csd, 0, sizeof(*csd)); 331 csd->csd_structure = mmc_get_bits(raw_csd, 128, 126, 2); 332 csd->spec_vers = mmc_get_bits(raw_csd, 128, 122, 4); 333 m = mmc_get_bits(raw_csd, 128, 115, 4); 334 e = mmc_get_bits(raw_csd, 128, 112, 3); 335 csd->tacc = exp[e] * mant[m] + 9 / 10; 336 csd->nsac = mmc_get_bits(raw_csd, 128, 104, 8) * 100; 337 m = mmc_get_bits(raw_csd, 128, 99, 4); 338 e = mmc_get_bits(raw_csd, 128, 96, 3); 339 csd->tran_speed = exp[e] * 10000 * mant[m]; 340 csd->ccc = mmc_get_bits(raw_csd, 128, 84, 12); 341 csd->read_bl_len = 1 << mmc_get_bits(raw_csd, 128, 80, 4); 342 csd->read_bl_partial = mmc_get_bits(raw_csd, 128, 79, 1); 343 csd->write_blk_misalign = mmc_get_bits(raw_csd, 128, 78, 1); 344 csd->read_blk_misalign = mmc_get_bits(raw_csd, 128, 77, 1); 345 csd->dsr_imp = mmc_get_bits(raw_csd, 128, 76, 1); 346 csd->vdd_r_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 59, 3)]; 347 csd->vdd_r_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 56, 3)]; 348 csd->vdd_w_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 53, 3)]; 349 csd->vdd_w_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 50, 3)]; 350 m = mmc_get_bits(raw_csd, 128, 62, 12); 351 e = mmc_get_bits(raw_csd, 128, 47, 3); 352 csd->capacity = ((1 + m) << (e + 2)) * csd->read_bl_len; 353 csd->erase_blk_en = 0; 354 csd->erase_sector = (mmc_get_bits(raw_csd, 128, 42, 5) + 1) * 355 (mmc_get_bits(raw_csd, 128, 37, 5) + 1); 356 csd->wp_grp_size = mmc_get_bits(raw_csd, 128, 32, 5); 357 csd->wp_grp_enable = mmc_get_bits(raw_csd, 128, 31, 1); 358 csd->r2w_factor = 1 << mmc_get_bits(raw_csd, 128, 26, 3); 359 csd->write_bl_len = 1 << mmc_get_bits(raw_csd, 128, 22, 4); 360 csd->write_bl_partial = mmc_get_bits(raw_csd, 128, 21, 1); 361 } 362 363 static void 364 mmc_decode_cid_sd(uint32_t *raw_cid, struct mmc_cid *cid) 365 { 366 int i; 367 368 /* There's no version info, so we take it on faith */ 369 memset(cid, 0, sizeof(*cid)); 370 cid->mid = mmc_get_bits(raw_cid, 128, 120, 8); 371 cid->oid = mmc_get_bits(raw_cid, 128, 104, 16); 372 for (i = 0; i < 5; i++) 373 cid->pnm[i] = mmc_get_bits(raw_cid, 128, 96 - i * 8, 8); 374 cid->pnm[5] = 0; 375 cid->prv = mmc_get_bits(raw_cid, 128, 56, 8); 376 cid->psn = mmc_get_bits(raw_cid, 128, 24, 32); 377 cid->mdt_year = mmc_get_bits(raw_cid, 128, 12, 8) + 2000; 378 cid->mdt_month = mmc_get_bits(raw_cid, 128, 8, 4); 379 } 380 381 static void 382 mmc_decode_cid_mmc(uint32_t *raw_cid, struct mmc_cid *cid) 383 { 384 int i; 385 386 /* There's no version info, so we take it on faith */ 387 memset(cid, 0, sizeof(*cid)); 388 cid->mid = mmc_get_bits(raw_cid, 128, 120, 8); 389 cid->oid = mmc_get_bits(raw_cid, 128, 104, 8); 390 for (i = 0; i < 6; i++) 391 cid->pnm[i] = mmc_get_bits(raw_cid, 128, 96 - i * 8, 8); 392 cid->pnm[6] = 0; 393 cid->prv = mmc_get_bits(raw_cid, 128, 48, 8); 394 cid->psn = mmc_get_bits(raw_cid, 128, 16, 32); 395 cid->mdt_month = mmc_get_bits(raw_cid, 128, 12, 4); 396 cid->mdt_year = mmc_get_bits(raw_cid, 128, 8, 4) + 1997; 397 } 398 399 static void 400 mmc_format_card_id_string(struct sdda_softc *sc, struct mmc_params *mmcp) 401 { 402 char oidstr[8]; 403 uint8_t c1; 404 uint8_t c2; 405 406 /* 407 * Format a card ID string for use by the mmcsd driver, it's what 408 * appears between the <> in the following: 409 * mmcsd0: 968MB <SD SD01G 8.0 SN 2686905 Mfg 08/2008 by 3 TN> at mmc0 410 * 22.5MHz/4bit/128-block 411 * 412 * Also format just the card serial number, which the mmcsd driver will 413 * use as the disk->d_ident string. 414 * 415 * The card_id_string in mmc_ivars is currently allocated as 64 bytes, 416 * and our max formatted length is currently 55 bytes if every field 417 * contains the largest value. 418 * 419 * Sometimes the oid is two printable ascii chars; when it's not, 420 * format it as 0xnnnn instead. 421 */ 422 c1 = (sc->cid.oid >> 8) & 0x0ff; 423 c2 = sc->cid.oid & 0x0ff; 424 if (c1 > 0x1f && c1 < 0x7f && c2 > 0x1f && c2 < 0x7f) 425 snprintf(oidstr, sizeof(oidstr), "%c%c", c1, c2); 426 else 427 snprintf(oidstr, sizeof(oidstr), "0x%04x", sc->cid.oid); 428 snprintf(sc->card_sn_string, sizeof(sc->card_sn_string), 429 "%08X", sc->cid.psn); 430 snprintf(sc->card_id_string, sizeof(sc->card_id_string), 431 "%s%s %s %d.%d SN %08X MFG %02d/%04d by %d %s", 432 mmcp->card_features & CARD_FEATURE_MMC ? "MMC" : "SD", 433 mmcp->card_features & CARD_FEATURE_SDHC ? "HC" : "", 434 sc->cid.pnm, sc->cid.prv >> 4, sc->cid.prv & 0x0f, 435 sc->cid.psn, sc->cid.mdt_month, sc->cid.mdt_year, 436 sc->cid.mid, oidstr); 437 } 438 439 static int 440 sddaopen(struct disk *dp) 441 { 442 struct sdda_part *part; 443 struct cam_periph *periph; 444 struct sdda_softc *softc; 445 int error; 446 447 part = (struct sdda_part *)dp->d_drv1; 448 softc = part->sc; 449 periph = softc->periph; 450 if (cam_periph_acquire(periph) != 0) { 451 return(ENXIO); 452 } 453 454 cam_periph_lock(periph); 455 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) { 456 cam_periph_unlock(periph); 457 cam_periph_release(periph); 458 return (error); 459 } 460 461 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddaopen\n")); 462 463 part->flags |= SDDA_FLAG_OPEN; 464 465 cam_periph_unhold(periph); 466 cam_periph_unlock(periph); 467 return (0); 468 } 469 470 static int 471 sddaclose(struct disk *dp) 472 { 473 struct sdda_part *part; 474 struct cam_periph *periph; 475 struct sdda_softc *softc; 476 477 part = (struct sdda_part *)dp->d_drv1; 478 softc = part->sc; 479 periph = softc->periph; 480 part->flags &= ~SDDA_FLAG_OPEN; 481 482 cam_periph_lock(periph); 483 484 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddaclose\n")); 485 486 while (softc->refcount != 0) 487 cam_periph_sleep(periph, &softc->refcount, PRIBIO, "sddaclose", 1); 488 cam_periph_unlock(periph); 489 cam_periph_release(periph); 490 return (0); 491 } 492 493 static void 494 sddaschedule(struct cam_periph *periph) 495 { 496 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 497 struct sdda_part *part; 498 struct bio *bp; 499 int i; 500 501 /* Check if we have more work to do. */ 502 /* Find partition that has outstanding commands. Prefer current partition. */ 503 bp = bioq_first(&softc->part[softc->part_curr]->bio_queue); 504 if (bp == NULL) { 505 for (i = 0; i < MMC_PART_MAX; i++) { 506 if ((part = softc->part[i]) != NULL && 507 (bp = bioq_first(&softc->part[i]->bio_queue)) != NULL) 508 break; 509 } 510 } 511 if (bp != NULL) { 512 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 513 } 514 } 515 516 /* 517 * Actually translate the requested transfer into one the physical driver 518 * can understand. The transfer is described by a buf and will include 519 * only one physical transfer. 520 */ 521 static void 522 sddastrategy(struct bio *bp) 523 { 524 struct cam_periph *periph; 525 struct sdda_part *part; 526 struct sdda_softc *softc; 527 528 part = (struct sdda_part *)bp->bio_disk->d_drv1; 529 softc = part->sc; 530 periph = softc->periph; 531 532 cam_periph_lock(periph); 533 534 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddastrategy(%p)\n", bp)); 535 536 /* 537 * If the device has been made invalid, error out 538 */ 539 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 540 cam_periph_unlock(periph); 541 biofinish(bp, NULL, ENXIO); 542 return; 543 } 544 545 /* 546 * Place it in the queue of disk activities for this disk 547 */ 548 bioq_disksort(&part->bio_queue, bp); 549 550 /* 551 * Schedule ourselves for performing the work. 552 */ 553 sddaschedule(periph); 554 cam_periph_unlock(periph); 555 556 return; 557 } 558 559 static void 560 sddainit(void) 561 { 562 cam_status status; 563 564 /* 565 * Install a global async callback. This callback will 566 * receive async callbacks like "new device found". 567 */ 568 status = xpt_register_async(AC_FOUND_DEVICE, sddaasync, NULL, NULL); 569 570 if (status != CAM_REQ_CMP) { 571 printf("sdda: Failed to attach master async callback " 572 "due to status 0x%x!\n", status); 573 } 574 } 575 576 /* 577 * Callback from GEOM, called when it has finished cleaning up its 578 * resources. 579 */ 580 static void 581 sddadiskgonecb(struct disk *dp) 582 { 583 struct cam_periph *periph; 584 struct sdda_part *part; 585 586 part = (struct sdda_part *)dp->d_drv1; 587 periph = part->sc->periph; 588 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddadiskgonecb\n")); 589 590 cam_periph_release(periph); 591 } 592 593 static void 594 sddaoninvalidate(struct cam_periph *periph) 595 { 596 struct sdda_softc *softc; 597 struct sdda_part *part; 598 599 softc = (struct sdda_softc *)periph->softc; 600 601 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddaoninvalidate\n")); 602 603 /* 604 * De-register any async callbacks. 605 */ 606 xpt_register_async(0, sddaasync, periph, periph->path); 607 608 /* 609 * Return all queued I/O with ENXIO. 610 * XXX Handle any transactions queued to the card 611 * with XPT_ABORT_CCB. 612 */ 613 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("bioq_flush start\n")); 614 for (int i = 0; i < MMC_PART_MAX; i++) { 615 if ((part = softc->part[i]) != NULL) { 616 bioq_flush(&part->bio_queue, NULL, ENXIO); 617 disk_gone(part->disk); 618 } 619 } 620 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("bioq_flush end\n")); 621 } 622 623 static void 624 sddacleanup(struct cam_periph *periph) 625 { 626 struct sdda_softc *softc; 627 struct sdda_part *part; 628 int i; 629 630 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddacleanup\n")); 631 softc = (struct sdda_softc *)periph->softc; 632 633 cam_periph_unlock(periph); 634 635 for (i = 0; i < MMC_PART_MAX; i++) { 636 if ((part = softc->part[i]) != NULL) { 637 disk_destroy(part->disk); 638 free(part, M_DEVBUF); 639 softc->part[i] = NULL; 640 } 641 } 642 free(softc, M_DEVBUF); 643 cam_periph_lock(periph); 644 } 645 646 static void 647 sddaasync(void *callback_arg, uint32_t code, 648 struct cam_path *path, void *arg) 649 { 650 struct ccb_getdev cgd; 651 struct cam_periph *periph; 652 653 periph = (struct cam_periph *)callback_arg; 654 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("sddaasync(code=%d)\n", code)); 655 switch (code) { 656 case AC_FOUND_DEVICE: 657 { 658 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("=> AC_FOUND_DEVICE\n")); 659 struct ccb_getdev *cgd; 660 cam_status status; 661 662 cgd = (struct ccb_getdev *)arg; 663 if (cgd == NULL) 664 break; 665 666 if (cgd->protocol != PROTO_MMCSD) 667 break; 668 669 if (!(path->device->mmc_ident_data.card_features & CARD_FEATURE_MEMORY)) { 670 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("No memory on the card!\n")); 671 break; 672 } 673 674 /* 675 * Allocate a peripheral instance for 676 * this device and start the probe 677 * process. 678 */ 679 status = cam_periph_alloc(sddaregister, sddaoninvalidate, 680 sddacleanup, sddastart, 681 "sdda", CAM_PERIPH_BIO, 682 path, sddaasync, 683 AC_FOUND_DEVICE, cgd); 684 685 if (status != CAM_REQ_CMP 686 && status != CAM_REQ_INPROG) 687 printf("sddaasync: Unable to attach to new device " 688 "due to status 0x%x\n", status); 689 break; 690 } 691 case AC_GETDEV_CHANGED: 692 { 693 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("=> AC_GETDEV_CHANGED\n")); 694 memset(&cgd, 0, sizeof(cgd)); 695 xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 696 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 697 xpt_action((union ccb *)&cgd); 698 cam_periph_async(periph, code, path, arg); 699 break; 700 } 701 case AC_ADVINFO_CHANGED: 702 { 703 uintptr_t buftype; 704 int i; 705 706 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("=> AC_ADVINFO_CHANGED\n")); 707 buftype = (uintptr_t)arg; 708 if (buftype == CDAI_TYPE_PHYS_PATH) { 709 struct sdda_softc *softc; 710 struct sdda_part *part; 711 712 softc = periph->softc; 713 for (i = 0; i < MMC_PART_MAX; i++) { 714 if ((part = softc->part[i]) != NULL) { 715 disk_attr_changed(part->disk, "GEOM::physpath", 716 M_NOWAIT); 717 } 718 } 719 } 720 break; 721 } 722 default: 723 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("=> default?!\n")); 724 cam_periph_async(periph, code, path, arg); 725 break; 726 } 727 } 728 729 static int 730 sddagetattr(struct bio *bp) 731 { 732 struct cam_periph *periph; 733 struct sdda_softc *softc; 734 struct sdda_part *part; 735 int ret; 736 737 part = (struct sdda_part *)bp->bio_disk->d_drv1; 738 softc = part->sc; 739 periph = softc->periph; 740 cam_periph_lock(periph); 741 ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute, 742 periph->path); 743 cam_periph_unlock(periph); 744 if (ret == 0) 745 bp->bio_completed = bp->bio_length; 746 return (ret); 747 } 748 749 static cam_status 750 sddaregister(struct cam_periph *periph, void *arg) 751 { 752 struct sdda_softc *softc; 753 struct ccb_getdev *cgd; 754 755 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddaregister\n")); 756 cgd = (struct ccb_getdev *)arg; 757 if (cgd == NULL) { 758 printf("sddaregister: no getdev CCB, can't register device\n"); 759 return (CAM_REQ_CMP_ERR); 760 } 761 762 softc = (struct sdda_softc *)malloc(sizeof(*softc), M_DEVBUF, 763 M_NOWAIT|M_ZERO); 764 if (softc == NULL) { 765 printf("sddaregister: Unable to probe new device. " 766 "Unable to allocate softc\n"); 767 return (CAM_REQ_CMP_ERR); 768 } 769 770 softc->state = SDDA_STATE_INIT; 771 softc->mmcdata = 772 (struct mmc_data *)malloc(sizeof(struct mmc_data), M_DEVBUF, M_NOWAIT|M_ZERO); 773 if (softc->mmcdata == NULL) { 774 printf("sddaregister: Unable to probe new device. " 775 "Unable to allocate mmcdata\n"); 776 free(softc, M_DEVBUF); 777 return (CAM_REQ_CMP_ERR); 778 } 779 periph->softc = softc; 780 softc->periph = periph; 781 782 xpt_schedule(periph, CAM_PRIORITY_XPT); 783 TASK_INIT(&softc->start_init_task, 0, sdda_start_init_task, periph); 784 taskqueue_enqueue(taskqueue_thread, &softc->start_init_task); 785 786 return (CAM_REQ_CMP); 787 } 788 789 static int 790 mmc_exec_app_cmd(struct cam_periph *periph, union ccb *ccb, 791 struct mmc_command *cmd) { 792 int err; 793 794 /* Send APP_CMD first */ 795 memset(&ccb->mmcio.cmd, 0, sizeof(struct mmc_command)); 796 memset(&ccb->mmcio.stop, 0, sizeof(struct mmc_command)); 797 cam_fill_mmcio(&ccb->mmcio, 798 /*retries*/ 0, 799 /*cbfcnp*/ NULL, 800 /*flags*/ CAM_DIR_NONE, 801 /*mmc_opcode*/ MMC_APP_CMD, 802 /*mmc_arg*/ get_rca(periph) << 16, 803 /*mmc_flags*/ MMC_RSP_R1 | MMC_CMD_AC, 804 /*mmc_data*/ NULL, 805 /*timeout*/ 0); 806 807 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 808 err = mmc_handle_reply(ccb); 809 if (err != 0) 810 return (err); 811 if (!(ccb->mmcio.cmd.resp[0] & R1_APP_CMD)) 812 return (EIO); 813 814 /* Now exec actual command */ 815 int flags = 0; 816 if (cmd->data != NULL) { 817 ccb->mmcio.cmd.data = cmd->data; 818 if (cmd->data->flags & MMC_DATA_READ) 819 flags |= CAM_DIR_IN; 820 if (cmd->data->flags & MMC_DATA_WRITE) 821 flags |= CAM_DIR_OUT; 822 } else flags = CAM_DIR_NONE; 823 824 cam_fill_mmcio(&ccb->mmcio, 825 /*retries*/ 0, 826 /*cbfcnp*/ NULL, 827 /*flags*/ flags, 828 /*mmc_opcode*/ cmd->opcode, 829 /*mmc_arg*/ cmd->arg, 830 /*mmc_flags*/ cmd->flags, 831 /*mmc_data*/ cmd->data, 832 /*timeout*/ 0); 833 834 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 835 err = mmc_handle_reply(ccb); 836 if (err != 0) 837 return (err); 838 memcpy(cmd->resp, ccb->mmcio.cmd.resp, sizeof(cmd->resp)); 839 cmd->error = ccb->mmcio.cmd.error; 840 841 return (0); 842 } 843 844 static int 845 mmc_app_get_scr(struct cam_periph *periph, union ccb *ccb, uint32_t *rawscr) { 846 int err; 847 struct mmc_command cmd; 848 struct mmc_data d; 849 850 memset(&cmd, 0, sizeof(cmd)); 851 memset(&d, 0, sizeof(d)); 852 853 memset(rawscr, 0, 8); 854 cmd.opcode = ACMD_SEND_SCR; 855 cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; 856 cmd.arg = 0; 857 858 d.data = rawscr; 859 d.len = 8; 860 d.flags = MMC_DATA_READ; 861 cmd.data = &d; 862 863 err = mmc_exec_app_cmd(periph, ccb, &cmd); 864 rawscr[0] = be32toh(rawscr[0]); 865 rawscr[1] = be32toh(rawscr[1]); 866 return (err); 867 } 868 869 static int 870 mmc_send_ext_csd(struct cam_periph *periph, union ccb *ccb, 871 uint8_t *rawextcsd, size_t buf_len) { 872 int err; 873 struct mmc_data d; 874 875 KASSERT(buf_len == 512, ("Buffer for ext csd must be 512 bytes")); 876 memset(&d, 0, sizeof(d)); 877 d.data = rawextcsd; 878 d.len = buf_len; 879 d.flags = MMC_DATA_READ; 880 memset(d.data, 0, d.len); 881 882 cam_fill_mmcio(&ccb->mmcio, 883 /*retries*/ 0, 884 /*cbfcnp*/ NULL, 885 /*flags*/ CAM_DIR_IN, 886 /*mmc_opcode*/ MMC_SEND_EXT_CSD, 887 /*mmc_arg*/ 0, 888 /*mmc_flags*/ MMC_RSP_R1 | MMC_CMD_ADTC, 889 /*mmc_data*/ &d, 890 /*timeout*/ 0); 891 892 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 893 err = mmc_handle_reply(ccb); 894 return (err); 895 } 896 897 static void 898 mmc_app_decode_scr(uint32_t *raw_scr, struct mmc_scr *scr) 899 { 900 unsigned int scr_struct; 901 902 memset(scr, 0, sizeof(*scr)); 903 904 scr_struct = mmc_get_bits(raw_scr, 64, 60, 4); 905 if (scr_struct != 0) { 906 printf("Unrecognised SCR structure version %d\n", 907 scr_struct); 908 return; 909 } 910 scr->sda_vsn = mmc_get_bits(raw_scr, 64, 56, 4); 911 scr->bus_widths = mmc_get_bits(raw_scr, 64, 48, 4); 912 } 913 914 static inline void 915 mmc_switch_fill_mmcio(union ccb *ccb, 916 uint8_t set, uint8_t index, uint8_t value, u_int timeout) 917 { 918 int arg = (MMC_SWITCH_FUNC_WR << 24) | 919 (index << 16) | 920 (value << 8) | 921 set; 922 923 cam_fill_mmcio(&ccb->mmcio, 924 /*retries*/ 0, 925 /*cbfcnp*/ NULL, 926 /*flags*/ CAM_DIR_NONE, 927 /*mmc_opcode*/ MMC_SWITCH_FUNC, 928 /*mmc_arg*/ arg, 929 /*mmc_flags*/ MMC_RSP_R1B | MMC_CMD_AC, 930 /*mmc_data*/ NULL, 931 /*timeout*/ timeout); 932 } 933 934 static int 935 mmc_select_card(struct cam_periph *periph, union ccb *ccb, uint32_t rca) 936 { 937 int flags, err; 938 939 flags = (rca ? MMC_RSP_R1B : MMC_RSP_NONE) | MMC_CMD_AC; 940 cam_fill_mmcio(&ccb->mmcio, 941 /*retries*/ 0, 942 /*cbfcnp*/ NULL, 943 /*flags*/ CAM_DIR_IN, 944 /*mmc_opcode*/ MMC_SELECT_CARD, 945 /*mmc_arg*/ rca << 16, 946 /*mmc_flags*/ flags, 947 /*mmc_data*/ NULL, 948 /*timeout*/ 0); 949 950 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 951 err = mmc_handle_reply(ccb); 952 return (err); 953 } 954 955 static int 956 mmc_switch(struct cam_periph *periph, union ccb *ccb, 957 uint8_t set, uint8_t index, uint8_t value, u_int timeout) 958 { 959 int err; 960 961 mmc_switch_fill_mmcio(ccb, set, index, value, timeout); 962 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 963 err = mmc_handle_reply(ccb); 964 return (err); 965 } 966 967 static uint32_t 968 mmc_get_spec_vers(struct cam_periph *periph) { 969 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 970 971 return (softc->csd.spec_vers); 972 } 973 974 static uint64_t 975 mmc_get_media_size(struct cam_periph *periph) { 976 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 977 978 return (softc->mediasize); 979 } 980 981 static uint32_t 982 mmc_get_cmd6_timeout(struct cam_periph *periph) 983 { 984 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 985 986 if (mmc_get_spec_vers(periph) >= 6) 987 return (softc->raw_ext_csd[EXT_CSD_GEN_CMD6_TIME] * 10); 988 return (500 * 1000); 989 } 990 991 static int 992 mmc_sd_switch(struct cam_periph *periph, union ccb *ccb, 993 uint8_t mode, uint8_t grp, uint8_t value, 994 uint8_t *res) { 995 struct mmc_data mmc_d; 996 uint32_t arg; 997 int err; 998 999 memset(res, 0, 64); 1000 memset(&mmc_d, 0, sizeof(mmc_d)); 1001 mmc_d.len = 64; 1002 mmc_d.data = res; 1003 mmc_d.flags = MMC_DATA_READ; 1004 1005 arg = mode << 31; /* 0 - check, 1 - set */ 1006 arg |= 0x00FFFFFF; 1007 arg &= ~(0xF << (grp * 4)); 1008 arg |= value << (grp * 4); 1009 1010 cam_fill_mmcio(&ccb->mmcio, 1011 /*retries*/ 0, 1012 /*cbfcnp*/ NULL, 1013 /*flags*/ CAM_DIR_IN, 1014 /*mmc_opcode*/ SD_SWITCH_FUNC, 1015 /*mmc_arg*/ arg, 1016 /*mmc_flags*/ MMC_RSP_R1 | MMC_CMD_ADTC, 1017 /*mmc_data*/ &mmc_d, 1018 /*timeout*/ 0); 1019 1020 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 1021 err = mmc_handle_reply(ccb); 1022 return (err); 1023 } 1024 1025 static int 1026 mmc_set_timing(struct cam_periph *periph, 1027 union ccb *ccb, 1028 enum mmc_bus_timing timing) 1029 { 1030 u_char switch_res[64]; 1031 int err; 1032 uint8_t value; 1033 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 1034 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1035 1036 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, 1037 ("mmc_set_timing(timing=%d)", timing)); 1038 switch (timing) { 1039 case bus_timing_normal: 1040 value = 0; 1041 break; 1042 case bus_timing_hs: 1043 value = 1; 1044 break; 1045 default: 1046 return (MMC_ERR_INVALID); 1047 } 1048 if (mmcp->card_features & CARD_FEATURE_MMC) { 1049 err = mmc_switch(periph, ccb, EXT_CSD_CMD_SET_NORMAL, 1050 EXT_CSD_HS_TIMING, value, softc->cmd6_time); 1051 } else { 1052 err = mmc_sd_switch(periph, ccb, SD_SWITCH_MODE_SET, SD_SWITCH_GROUP1, value, switch_res); 1053 } 1054 1055 /* Set high-speed timing on the host */ 1056 struct ccb_trans_settings_mmc *cts; 1057 cts = &ccb->cts.proto_specific.mmc; 1058 ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1059 ccb->ccb_h.flags = CAM_DIR_NONE; 1060 ccb->ccb_h.retry_count = 0; 1061 ccb->ccb_h.timeout = 100; 1062 ccb->ccb_h.cbfcnp = NULL; 1063 cts->ios.timing = timing; 1064 cts->ios_valid = MMC_BT; 1065 xpt_action(ccb); 1066 1067 return (err); 1068 } 1069 1070 static void 1071 sdda_start_init_task(void *context, int pending) { 1072 union ccb *new_ccb; 1073 struct cam_periph *periph; 1074 1075 periph = (struct cam_periph *)context; 1076 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sdda_start_init_task\n")); 1077 new_ccb = xpt_alloc_ccb(); 1078 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, 1079 CAM_PRIORITY_NONE); 1080 1081 cam_periph_lock(periph); 1082 cam_periph_hold(periph, PRIBIO|PCATCH); 1083 sdda_start_init(context, new_ccb); 1084 cam_periph_unhold(periph); 1085 cam_periph_unlock(periph); 1086 xpt_free_ccb(new_ccb); 1087 } 1088 1089 static void 1090 sdda_set_bus_width(struct cam_periph *periph, union ccb *ccb, int width) { 1091 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 1092 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1093 int err; 1094 1095 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sdda_set_bus_width\n")); 1096 1097 /* First set for the card, then for the host */ 1098 if (mmcp->card_features & CARD_FEATURE_MMC) { 1099 uint8_t value; 1100 switch (width) { 1101 case bus_width_1: 1102 value = EXT_CSD_BUS_WIDTH_1; 1103 break; 1104 case bus_width_4: 1105 value = EXT_CSD_BUS_WIDTH_4; 1106 break; 1107 case bus_width_8: 1108 value = EXT_CSD_BUS_WIDTH_8; 1109 break; 1110 default: 1111 panic("Invalid bus width %d", width); 1112 } 1113 err = mmc_switch(periph, ccb, EXT_CSD_CMD_SET_NORMAL, 1114 EXT_CSD_BUS_WIDTH, value, softc->cmd6_time); 1115 } else { 1116 /* For SD cards we send ACMD6 with the required bus width in arg */ 1117 struct mmc_command cmd; 1118 memset(&cmd, 0, sizeof(struct mmc_command)); 1119 cmd.opcode = ACMD_SET_BUS_WIDTH; 1120 cmd.arg = width; 1121 cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 1122 err = mmc_exec_app_cmd(periph, ccb, &cmd); 1123 } 1124 1125 if (err != MMC_ERR_NONE) { 1126 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Error %d when setting bus width on the card\n", err)); 1127 return; 1128 } 1129 /* Now card is done, set the host to the same width */ 1130 struct ccb_trans_settings_mmc *cts; 1131 cts = &ccb->cts.proto_specific.mmc; 1132 ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1133 ccb->ccb_h.flags = CAM_DIR_NONE; 1134 ccb->ccb_h.retry_count = 0; 1135 ccb->ccb_h.timeout = 100; 1136 ccb->ccb_h.cbfcnp = NULL; 1137 cts->ios.bus_width = width; 1138 cts->ios_valid = MMC_BW; 1139 xpt_action(ccb); 1140 } 1141 1142 static inline const char 1143 *part_type(u_int type) 1144 { 1145 1146 switch (type) { 1147 case EXT_CSD_PART_CONFIG_ACC_RPMB: 1148 return ("RPMB"); 1149 case EXT_CSD_PART_CONFIG_ACC_DEFAULT: 1150 return ("default"); 1151 case EXT_CSD_PART_CONFIG_ACC_BOOT0: 1152 return ("boot0"); 1153 case EXT_CSD_PART_CONFIG_ACC_BOOT1: 1154 return ("boot1"); 1155 case EXT_CSD_PART_CONFIG_ACC_GP0: 1156 case EXT_CSD_PART_CONFIG_ACC_GP1: 1157 case EXT_CSD_PART_CONFIG_ACC_GP2: 1158 case EXT_CSD_PART_CONFIG_ACC_GP3: 1159 return ("general purpose"); 1160 default: 1161 return ("(unknown type)"); 1162 } 1163 } 1164 1165 static inline const char 1166 *bus_width_str(enum mmc_bus_width w) 1167 { 1168 1169 switch (w) { 1170 case bus_width_1: 1171 return ("1-bit"); 1172 case bus_width_4: 1173 return ("4-bit"); 1174 case bus_width_8: 1175 return ("8-bit"); 1176 default: 1177 __assert_unreachable(); 1178 } 1179 } 1180 1181 static uint32_t 1182 sdda_get_host_caps(struct cam_periph *periph, union ccb *ccb) 1183 { 1184 struct ccb_trans_settings_mmc *cts; 1185 1186 cts = &ccb->cts.proto_specific.mmc; 1187 1188 ccb->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1189 ccb->ccb_h.flags = CAM_DIR_NONE; 1190 ccb->ccb_h.retry_count = 0; 1191 ccb->ccb_h.timeout = 100; 1192 ccb->ccb_h.cbfcnp = NULL; 1193 xpt_action(ccb); 1194 1195 if (ccb->ccb_h.status != CAM_REQ_CMP) 1196 panic("Cannot get host caps"); 1197 return (cts->host_caps); 1198 } 1199 1200 static uint32_t 1201 sdda_get_max_data(struct cam_periph *periph, union ccb *ccb) 1202 { 1203 struct ccb_trans_settings_mmc *cts; 1204 1205 cts = &ccb->cts.proto_specific.mmc; 1206 memset(cts, 0, sizeof(struct ccb_trans_settings_mmc)); 1207 1208 ccb->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1209 ccb->ccb_h.flags = CAM_DIR_NONE; 1210 ccb->ccb_h.retry_count = 0; 1211 ccb->ccb_h.timeout = 100; 1212 ccb->ccb_h.cbfcnp = NULL; 1213 xpt_action(ccb); 1214 1215 if (ccb->ccb_h.status != CAM_REQ_CMP) 1216 panic("Cannot get host max data"); 1217 KASSERT(cts->host_max_data != 0, ("host_max_data == 0?!")); 1218 return (cts->host_max_data); 1219 } 1220 1221 static void 1222 sdda_start_init(void *context, union ccb *start_ccb) 1223 { 1224 struct cam_periph *periph = (struct cam_periph *)context; 1225 struct ccb_trans_settings_mmc *cts; 1226 uint32_t host_caps; 1227 uint32_t sec_count; 1228 int err; 1229 int host_f_max; 1230 uint8_t card_type; 1231 1232 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sdda_start_init\n")); 1233 /* periph was held for us when this task was enqueued */ 1234 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 1235 cam_periph_release(periph); 1236 return; 1237 } 1238 1239 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 1240 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1241 struct cam_ed *device = periph->path->device; 1242 1243 if (mmcp->card_features & CARD_FEATURE_MMC) { 1244 mmc_decode_csd_mmc(mmcp->card_csd, &softc->csd); 1245 mmc_decode_cid_mmc(mmcp->card_cid, &softc->cid); 1246 if (mmc_get_spec_vers(periph) >= 4) { 1247 err = mmc_send_ext_csd(periph, start_ccb, 1248 (uint8_t *)&softc->raw_ext_csd, 1249 sizeof(softc->raw_ext_csd)); 1250 if (err != 0) { 1251 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1252 ("Cannot read EXT_CSD, err %d", err)); 1253 return; 1254 } 1255 } 1256 } else { 1257 mmc_decode_csd_sd(mmcp->card_csd, &softc->csd); 1258 mmc_decode_cid_sd(mmcp->card_cid, &softc->cid); 1259 } 1260 1261 softc->sector_count = softc->csd.capacity / MMC_SECTOR_SIZE; 1262 softc->mediasize = softc->csd.capacity; 1263 softc->cmd6_time = mmc_get_cmd6_timeout(periph); 1264 1265 /* MMC >= 4.x have EXT_CSD that has its own opinion about capacity */ 1266 if (mmc_get_spec_vers(periph) >= 4) { 1267 sec_count = softc->raw_ext_csd[EXT_CSD_SEC_CNT] + 1268 (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 1] << 8) + 1269 (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 2] << 16) + 1270 (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 3] << 24); 1271 if (sec_count != 0) { 1272 softc->sector_count = sec_count; 1273 softc->mediasize = softc->sector_count * MMC_SECTOR_SIZE; 1274 /* FIXME: there should be a better name for this option...*/ 1275 mmcp->card_features |= CARD_FEATURE_SDHC; 1276 } 1277 } 1278 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1279 ("Capacity: %"PRIu64", sectors: %"PRIu64"\n", 1280 softc->mediasize, 1281 softc->sector_count)); 1282 mmc_format_card_id_string(softc, mmcp); 1283 1284 /* Update info for CAM */ 1285 device->serial_num_len = strlen(softc->card_sn_string); 1286 device->serial_num = (uint8_t *)malloc((device->serial_num_len + 1), 1287 M_CAMXPT, M_NOWAIT); 1288 strlcpy(device->serial_num, softc->card_sn_string, device->serial_num_len + 1); 1289 1290 device->device_id_len = strlen(softc->card_id_string); 1291 device->device_id = (uint8_t *)malloc((device->device_id_len + 1), 1292 M_CAMXPT, M_NOWAIT); 1293 strlcpy(device->device_id, softc->card_id_string, device->device_id_len + 1); 1294 1295 strlcpy(mmcp->model, softc->card_id_string, sizeof(mmcp->model)); 1296 1297 /* Set the clock frequency that the card can handle */ 1298 cts = &start_ccb->cts.proto_specific.mmc; 1299 1300 /* First, get the host's max freq */ 1301 start_ccb->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1302 start_ccb->ccb_h.flags = CAM_DIR_NONE; 1303 start_ccb->ccb_h.retry_count = 0; 1304 start_ccb->ccb_h.timeout = 100; 1305 start_ccb->ccb_h.cbfcnp = NULL; 1306 xpt_action(start_ccb); 1307 1308 if (start_ccb->ccb_h.status != CAM_REQ_CMP) 1309 panic("Cannot get max host freq"); 1310 host_f_max = cts->host_f_max; 1311 host_caps = cts->host_caps; 1312 if (cts->ios.bus_width != bus_width_1) 1313 panic("Bus width in ios is not 1-bit"); 1314 1315 /* Now check if the card supports High-speed */ 1316 softc->card_f_max = softc->csd.tran_speed; 1317 1318 if (host_caps & MMC_CAP_HSPEED) { 1319 /* Find out if the card supports High speed timing */ 1320 if (mmcp->card_features & CARD_FEATURE_SD20) { 1321 /* Get and decode SCR */ 1322 uint32_t rawscr[2]; 1323 uint8_t res[64]; 1324 if (mmc_app_get_scr(periph, start_ccb, rawscr)) { 1325 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Cannot get SCR\n")); 1326 goto finish_hs_tests; 1327 } 1328 mmc_app_decode_scr(rawscr, &softc->scr); 1329 1330 if ((softc->scr.sda_vsn >= 1) && (softc->csd.ccc & (1<<10))) { 1331 mmc_sd_switch(periph, start_ccb, SD_SWITCH_MODE_CHECK, 1332 SD_SWITCH_GROUP1, SD_SWITCH_NOCHANGE, res); 1333 if (res[13] & 2) { 1334 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Card supports HS\n")); 1335 softc->card_f_max = SD_HS_MAX; 1336 } 1337 1338 /* 1339 * We deselect then reselect the card here. Some cards 1340 * become unselected and timeout with the above two 1341 * commands, although the state tables / diagrams in the 1342 * standard suggest they go back to the transfer state. 1343 * Other cards don't become deselected, and if we 1344 * attempt to blindly re-select them, we get timeout 1345 * errors from some controllers. So we deselect then 1346 * reselect to handle all situations. 1347 */ 1348 mmc_select_card(periph, start_ccb, 0); 1349 mmc_select_card(periph, start_ccb, get_rca(periph)); 1350 } else { 1351 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Not trying the switch\n")); 1352 goto finish_hs_tests; 1353 } 1354 } 1355 1356 if (mmcp->card_features & CARD_FEATURE_MMC && mmc_get_spec_vers(periph) >= 4) { 1357 card_type = softc->raw_ext_csd[EXT_CSD_CARD_TYPE]; 1358 if (card_type & EXT_CSD_CARD_TYPE_HS_52) 1359 softc->card_f_max = MMC_TYPE_HS_52_MAX; 1360 else if (card_type & EXT_CSD_CARD_TYPE_HS_26) 1361 softc->card_f_max = MMC_TYPE_HS_26_MAX; 1362 if ((card_type & EXT_CSD_CARD_TYPE_DDR_52_1_2V) != 0 && 1363 (host_caps & MMC_CAP_SIGNALING_120) != 0) { 1364 setbit(&softc->timings, bus_timing_mmc_ddr52); 1365 setbit(&softc->vccq_120, bus_timing_mmc_ddr52); 1366 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Card supports DDR52 at 1.2V\n")); 1367 } 1368 if ((card_type & EXT_CSD_CARD_TYPE_DDR_52_1_8V) != 0 && 1369 (host_caps & MMC_CAP_SIGNALING_180) != 0) { 1370 setbit(&softc->timings, bus_timing_mmc_ddr52); 1371 setbit(&softc->vccq_180, bus_timing_mmc_ddr52); 1372 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Card supports DDR52 at 1.8V\n")); 1373 } 1374 if ((card_type & EXT_CSD_CARD_TYPE_HS200_1_2V) != 0 && 1375 (host_caps & MMC_CAP_SIGNALING_120) != 0) { 1376 setbit(&softc->timings, bus_timing_mmc_hs200); 1377 setbit(&softc->vccq_120, bus_timing_mmc_hs200); 1378 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Card supports HS200 at 1.2V\n")); 1379 } 1380 if ((card_type & EXT_CSD_CARD_TYPE_HS200_1_8V) != 0 && 1381 (host_caps & MMC_CAP_SIGNALING_180) != 0) { 1382 setbit(&softc->timings, bus_timing_mmc_hs200); 1383 setbit(&softc->vccq_180, bus_timing_mmc_hs200); 1384 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Card supports HS200 at 1.8V\n")); 1385 } 1386 } 1387 } 1388 int f_max; 1389 finish_hs_tests: 1390 f_max = min(host_f_max, softc->card_f_max); 1391 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Set SD freq to %d MHz (min out of host f=%d MHz and card f=%d MHz)\n", f_max / 1000000, host_f_max / 1000000, softc->card_f_max / 1000000)); 1392 1393 /* Enable high-speed timing on the card */ 1394 if (f_max > 25000000) { 1395 err = mmc_set_timing(periph, start_ccb, bus_timing_hs); 1396 if (err != MMC_ERR_NONE) { 1397 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("Cannot switch card to high-speed mode")); 1398 f_max = 25000000; 1399 } 1400 } 1401 /* If possible, set lower-level signaling */ 1402 enum mmc_bus_timing timing; 1403 /* FIXME: MMCCAM supports max. bus_timing_mmc_ddr52 at the moment. */ 1404 for (timing = bus_timing_mmc_ddr52; timing > bus_timing_normal; timing--) { 1405 if (isset(&softc->vccq_120, timing)) { 1406 /* Set VCCQ = 1.2V */ 1407 start_ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1408 start_ccb->ccb_h.flags = CAM_DIR_NONE; 1409 start_ccb->ccb_h.retry_count = 0; 1410 start_ccb->ccb_h.timeout = 100; 1411 start_ccb->ccb_h.cbfcnp = NULL; 1412 cts->ios.vccq = vccq_120; 1413 cts->ios_valid = MMC_VCCQ; 1414 xpt_action(start_ccb); 1415 break; 1416 } else if (isset(&softc->vccq_180, timing)) { 1417 /* Set VCCQ = 1.8V */ 1418 start_ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1419 start_ccb->ccb_h.flags = CAM_DIR_NONE; 1420 start_ccb->ccb_h.retry_count = 0; 1421 start_ccb->ccb_h.timeout = 100; 1422 start_ccb->ccb_h.cbfcnp = NULL; 1423 cts->ios.vccq = vccq_180; 1424 cts->ios_valid = MMC_VCCQ; 1425 xpt_action(start_ccb); 1426 break; 1427 } else { 1428 /* Set VCCQ = 3.3V */ 1429 start_ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1430 start_ccb->ccb_h.flags = CAM_DIR_NONE; 1431 start_ccb->ccb_h.retry_count = 0; 1432 start_ccb->ccb_h.timeout = 100; 1433 start_ccb->ccb_h.cbfcnp = NULL; 1434 cts->ios.vccq = vccq_330; 1435 cts->ios_valid = MMC_VCCQ; 1436 xpt_action(start_ccb); 1437 break; 1438 } 1439 } 1440 1441 /* Set frequency on the controller */ 1442 start_ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1443 start_ccb->ccb_h.flags = CAM_DIR_NONE; 1444 start_ccb->ccb_h.retry_count = 0; 1445 start_ccb->ccb_h.timeout = 100; 1446 start_ccb->ccb_h.cbfcnp = NULL; 1447 cts->ios.clock = f_max; 1448 cts->ios_valid = MMC_CLK; 1449 xpt_action(start_ccb); 1450 1451 /* Set bus width */ 1452 enum mmc_bus_width desired_bus_width = bus_width_1; 1453 enum mmc_bus_width max_host_bus_width = 1454 (host_caps & MMC_CAP_8_BIT_DATA ? bus_width_8 : 1455 host_caps & MMC_CAP_4_BIT_DATA ? bus_width_4 : bus_width_1); 1456 enum mmc_bus_width max_card_bus_width = bus_width_1; 1457 if (mmcp->card_features & CARD_FEATURE_SD20 && 1458 softc->scr.bus_widths & SD_SCR_BUS_WIDTH_4) 1459 max_card_bus_width = bus_width_4; 1460 /* 1461 * Unlike SD, MMC cards don't have any information about supported bus width... 1462 * So we need to perform read/write test to find out the width. 1463 */ 1464 /* TODO: figure out bus width for MMC; use 8-bit for now (to test on BBB) */ 1465 if (mmcp->card_features & CARD_FEATURE_MMC) 1466 max_card_bus_width = bus_width_8; 1467 1468 desired_bus_width = min(max_host_bus_width, max_card_bus_width); 1469 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1470 ("Set bus width to %s (min of host %s and card %s)\n", 1471 bus_width_str(desired_bus_width), 1472 bus_width_str(max_host_bus_width), 1473 bus_width_str(max_card_bus_width))); 1474 sdda_set_bus_width(periph, start_ccb, desired_bus_width); 1475 1476 softc->state = SDDA_STATE_NORMAL; 1477 1478 cam_periph_unhold(periph); 1479 /* MMC partitions support */ 1480 if (mmcp->card_features & CARD_FEATURE_MMC && mmc_get_spec_vers(periph) >= 4) { 1481 sdda_process_mmc_partitions(periph, start_ccb); 1482 } else if (mmcp->card_features & CARD_FEATURE_MEMORY) { 1483 /* For SD[HC] cards, just add one partition that is the whole card */ 1484 if (sdda_add_part(periph, 0, "sdda", 1485 periph->unit_number, 1486 mmc_get_media_size(periph), 1487 sdda_get_read_only(periph, start_ccb)) == false) 1488 return; 1489 softc->part_curr = 0; 1490 } 1491 cam_periph_hold(periph, PRIBIO|PCATCH); 1492 1493 xpt_announce_periph(periph, softc->card_id_string); 1494 /* 1495 * Add async callbacks for bus reset and bus device reset calls. 1496 * I don't bother checking if this fails as, in most cases, 1497 * the system will function just fine without them and the only 1498 * alternative would be to not attach the device on failure. 1499 */ 1500 xpt_register_async(AC_LOST_DEVICE | AC_GETDEV_CHANGED | 1501 AC_ADVINFO_CHANGED, sddaasync, periph, periph->path); 1502 } 1503 1504 static bool 1505 sdda_add_part(struct cam_periph *periph, u_int type, const char *name, 1506 u_int cnt, off_t media_size, bool ro) 1507 { 1508 struct sdda_softc *sc = (struct sdda_softc *)periph->softc; 1509 struct sdda_part *part; 1510 struct ccb_pathinq cpi; 1511 1512 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1513 ("Partition type '%s', size %ju %s\n", 1514 part_type(type), 1515 media_size, 1516 ro ? "(read-only)" : "")); 1517 1518 part = sc->part[type] = malloc(sizeof(*part), M_DEVBUF, 1519 M_NOWAIT | M_ZERO); 1520 if (part == NULL) { 1521 printf("Cannot add partition for sdda\n"); 1522 return (false); 1523 } 1524 1525 part->cnt = cnt; 1526 part->type = type; 1527 part->ro = ro; 1528 part->sc = sc; 1529 snprintf(part->name, sizeof(part->name), name, periph->unit_number); 1530 1531 /* 1532 * Due to the nature of RPMB partition it doesn't make much sense 1533 * to add it as a disk. It would be more appropriate to create a 1534 * userland tool to operate on the partition or leverage the existing 1535 * tools from sysutils/mmc-utils. 1536 */ 1537 if (type == EXT_CSD_PART_CONFIG_ACC_RPMB) { 1538 /* TODO: Create device, assign IOCTL handler */ 1539 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1540 ("Don't know what to do with RPMB partitions yet\n")); 1541 return (false); 1542 } 1543 1544 bioq_init(&part->bio_queue); 1545 1546 bzero(&cpi, sizeof(cpi)); 1547 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE); 1548 cpi.ccb_h.func_code = XPT_PATH_INQ; 1549 xpt_action((union ccb *)&cpi); 1550 1551 /* 1552 * Register this media as a disk 1553 */ 1554 (void)cam_periph_hold(periph, PRIBIO); 1555 cam_periph_unlock(periph); 1556 1557 part->disk = disk_alloc(); 1558 part->disk->d_rotation_rate = DISK_RR_NON_ROTATING; 1559 part->disk->d_devstat = devstat_new_entry(part->name, 1560 cnt, MMC_SECTOR_SIZE, 1561 DEVSTAT_ALL_SUPPORTED, 1562 DEVSTAT_TYPE_DIRECT | XPORT_DEVSTAT_TYPE(cpi.transport), 1563 DEVSTAT_PRIORITY_DISK); 1564 1565 part->disk->d_open = sddaopen; 1566 part->disk->d_close = sddaclose; 1567 part->disk->d_strategy = sddastrategy; 1568 if (cam_sim_pollable(periph->sim)) 1569 part->disk->d_dump = sddadump; 1570 part->disk->d_getattr = sddagetattr; 1571 part->disk->d_gone = sddadiskgonecb; 1572 part->disk->d_name = part->name; 1573 part->disk->d_drv1 = part; 1574 part->disk->d_maxsize = 1575 MIN(maxphys, sdda_get_max_data(periph, 1576 (union ccb *)&cpi) * mmc_get_sector_size(periph)); 1577 part->disk->d_unit = cnt; 1578 part->disk->d_flags = 0; 1579 strlcpy(part->disk->d_descr, sc->card_id_string, 1580 MIN(sizeof(part->disk->d_descr), sizeof(sc->card_id_string))); 1581 strlcpy(part->disk->d_ident, sc->card_sn_string, 1582 MIN(sizeof(part->disk->d_ident), sizeof(sc->card_sn_string))); 1583 part->disk->d_hba_vendor = cpi.hba_vendor; 1584 part->disk->d_hba_device = cpi.hba_device; 1585 part->disk->d_hba_subvendor = cpi.hba_subvendor; 1586 part->disk->d_hba_subdevice = cpi.hba_subdevice; 1587 snprintf(part->disk->d_attachment, sizeof(part->disk->d_attachment), 1588 "%s%d", cpi.dev_name, cpi.unit_number); 1589 1590 part->disk->d_sectorsize = mmc_get_sector_size(periph); 1591 part->disk->d_mediasize = media_size; 1592 part->disk->d_stripesize = 0; 1593 part->disk->d_fwsectors = 0; 1594 part->disk->d_fwheads = 0; 1595 1596 if (sdda_mmcsd_compat) 1597 disk_add_alias(part->disk, "mmcsd"); 1598 1599 /* 1600 * Acquire a reference to the periph before we register with GEOM. 1601 * We'll release this reference once GEOM calls us back (via 1602 * sddadiskgonecb()) telling us that our provider has been freed. 1603 */ 1604 if (cam_periph_acquire(periph) != 0) { 1605 xpt_print(periph->path, "%s: lost periph during " 1606 "registration!\n", __func__); 1607 cam_periph_lock(periph); 1608 return (false); 1609 } 1610 disk_create(part->disk, DISK_VERSION); 1611 cam_periph_lock(periph); 1612 cam_periph_unhold(periph); 1613 1614 return (true); 1615 } 1616 1617 /* 1618 * For MMC cards, process EXT_CSD and add partitions that are supported by 1619 * this device. 1620 */ 1621 static void 1622 sdda_process_mmc_partitions(struct cam_periph *periph, union ccb *ccb) 1623 { 1624 struct sdda_softc *sc = (struct sdda_softc *)periph->softc; 1625 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1626 off_t erase_size, sector_size, size, wp_size; 1627 int i; 1628 const uint8_t *ext_csd; 1629 uint8_t rev; 1630 bool comp, ro; 1631 1632 ext_csd = sc->raw_ext_csd; 1633 1634 /* 1635 * Enhanced user data area and general purpose partitions are only 1636 * supported in revision 1.4 (EXT_CSD_REV == 4) and later, the RPMB 1637 * partition in revision 1.5 (MMC v4.41, EXT_CSD_REV == 5) and later. 1638 */ 1639 rev = ext_csd[EXT_CSD_REV]; 1640 1641 /* 1642 * Ignore user-creatable enhanced user data area and general purpose 1643 * partitions partitions as long as partitioning hasn't been finished. 1644 */ 1645 comp = (ext_csd[EXT_CSD_PART_SET] & EXT_CSD_PART_SET_COMPLETED) != 0; 1646 1647 /* 1648 * Add enhanced user data area slice, unless it spans the entirety of 1649 * the user data area. The enhanced area is of a multiple of high 1650 * capacity write protect groups ((ERASE_GRP_SIZE + HC_WP_GRP_SIZE) * 1651 * 512 KB) and its offset given in either sectors or bytes, depending 1652 * on whether it's a high capacity device or not. 1653 * NB: The slicer and its slices need to be registered before adding 1654 * the disk for the corresponding user data area as re-tasting is 1655 * racy. 1656 */ 1657 sector_size = mmc_get_sector_size(periph); 1658 size = ext_csd[EXT_CSD_ENH_SIZE_MULT] + 1659 (ext_csd[EXT_CSD_ENH_SIZE_MULT + 1] << 8) + 1660 (ext_csd[EXT_CSD_ENH_SIZE_MULT + 2] << 16); 1661 if (rev >= 4 && comp == TRUE && size > 0 && 1662 (ext_csd[EXT_CSD_PART_SUPPORT] & 1663 EXT_CSD_PART_SUPPORT_ENH_ATTR_EN) != 0 && 1664 (ext_csd[EXT_CSD_PART_ATTR] & (EXT_CSD_PART_ATTR_ENH_USR)) != 0) { 1665 erase_size = ext_csd[EXT_CSD_ERASE_GRP_SIZE] * 1024 * 1666 MMC_SECTOR_SIZE; 1667 wp_size = ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; 1668 size *= erase_size * wp_size; 1669 if (size != mmc_get_media_size(periph) * sector_size) { 1670 sc->enh_size = size; 1671 sc->enh_base = (ext_csd[EXT_CSD_ENH_START_ADDR] + 1672 (ext_csd[EXT_CSD_ENH_START_ADDR + 1] << 8) + 1673 (ext_csd[EXT_CSD_ENH_START_ADDR + 2] << 16) + 1674 (ext_csd[EXT_CSD_ENH_START_ADDR + 3] << 24)) * 1675 ((mmcp->card_features & CARD_FEATURE_SDHC) ? 1: MMC_SECTOR_SIZE); 1676 } else 1677 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1678 ("enhanced user data area spans entire device")); 1679 } 1680 1681 /* 1682 * Add default partition. This may be the only one or the user 1683 * data area in case partitions are supported. 1684 */ 1685 ro = sdda_get_read_only(periph, ccb); 1686 sdda_add_part(periph, EXT_CSD_PART_CONFIG_ACC_DEFAULT, "sdda", 1687 periph->unit_number, mmc_get_media_size(periph), ro); 1688 sc->part_curr = EXT_CSD_PART_CONFIG_ACC_DEFAULT; 1689 1690 if (mmc_get_spec_vers(periph) < 3) 1691 return; 1692 1693 /* Belatedly announce enhanced user data slice. */ 1694 if (sc->enh_size != 0) { 1695 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1696 ("enhanced user data area off 0x%jx size %ju bytes\n", 1697 sc->enh_base, sc->enh_size)); 1698 } 1699 1700 /* 1701 * Determine partition switch timeout (provided in units of 10 ms) 1702 * and ensure it's at least 300 ms as some eMMC chips lie. 1703 */ 1704 sc->part_time = max(ext_csd[EXT_CSD_PART_SWITCH_TO] * 10 * 1000, 1705 300 * 1000); 1706 1707 /* Add boot partitions, which are of a fixed multiple of 128 KB. */ 1708 size = ext_csd[EXT_CSD_BOOT_SIZE_MULT] * MMC_BOOT_RPMB_BLOCK_SIZE; 1709 if (size > 0 && (sdda_get_host_caps(periph, ccb) & MMC_CAP_BOOT_NOACC) == 0) { 1710 sdda_add_part(periph, EXT_CSD_PART_CONFIG_ACC_BOOT0, 1711 SDDA_FMT_BOOT, 0, size, 1712 ro | ((ext_csd[EXT_CSD_BOOT_WP_STATUS] & 1713 EXT_CSD_BOOT_WP_STATUS_BOOT0_MASK) != 0)); 1714 sdda_add_part(periph, EXT_CSD_PART_CONFIG_ACC_BOOT1, 1715 SDDA_FMT_BOOT, 1, size, 1716 ro | ((ext_csd[EXT_CSD_BOOT_WP_STATUS] & 1717 EXT_CSD_BOOT_WP_STATUS_BOOT1_MASK) != 0)); 1718 } 1719 1720 /* Add RPMB partition, which also is of a fixed multiple of 128 KB. */ 1721 size = ext_csd[EXT_CSD_RPMB_MULT] * MMC_BOOT_RPMB_BLOCK_SIZE; 1722 if (rev >= 5 && size > 0) 1723 sdda_add_part(periph, EXT_CSD_PART_CONFIG_ACC_RPMB, 1724 SDDA_FMT_RPMB, 0, size, ro); 1725 1726 if (rev <= 3 || comp == FALSE) 1727 return; 1728 1729 /* 1730 * Add general purpose partitions, which are of a multiple of high 1731 * capacity write protect groups, too. 1732 */ 1733 if ((ext_csd[EXT_CSD_PART_SUPPORT] & EXT_CSD_PART_SUPPORT_EN) != 0) { 1734 erase_size = ext_csd[EXT_CSD_ERASE_GRP_SIZE] * 1024 * 1735 MMC_SECTOR_SIZE; 1736 wp_size = ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; 1737 for (i = 0; i < MMC_PART_GP_MAX; i++) { 1738 size = ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3] + 1739 (ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3 + 1] << 8) + 1740 (ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3 + 2] << 16); 1741 if (size == 0) 1742 continue; 1743 sdda_add_part(periph, EXT_CSD_PART_CONFIG_ACC_GP0 + i, 1744 SDDA_FMT_GP, i, size * erase_size * wp_size, ro); 1745 } 1746 } 1747 } 1748 1749 /* 1750 * We cannot just call mmc_switch() since it will sleep, and we are in 1751 * GEOM context and cannot sleep. Instead, create an MMCIO request to switch 1752 * partitions and send it to h/w, and upon completion resume processing 1753 * the I/O queue. 1754 * This function cannot fail, instead check switch errors in sddadone(). 1755 */ 1756 static void 1757 sdda_init_switch_part(struct cam_periph *periph, union ccb *start_ccb, 1758 uint8_t part) 1759 { 1760 struct sdda_softc *sc = (struct sdda_softc *)periph->softc; 1761 uint8_t value; 1762 1763 KASSERT(part < MMC_PART_MAX, ("%s: invalid partition index", __func__)); 1764 sc->part_requested = part; 1765 1766 value = (sc->raw_ext_csd[EXT_CSD_PART_CONFIG] & 1767 ~EXT_CSD_PART_CONFIG_ACC_MASK) | part; 1768 1769 mmc_switch_fill_mmcio(start_ccb, EXT_CSD_CMD_SET_NORMAL, 1770 EXT_CSD_PART_CONFIG, value, sc->part_time); 1771 start_ccb->ccb_h.cbfcnp = sddadone; 1772 1773 sc->outstanding_cmds++; 1774 cam_periph_unlock(periph); 1775 xpt_action(start_ccb); 1776 cam_periph_lock(periph); 1777 } 1778 1779 /* Called with periph lock held! */ 1780 static void 1781 sddastart(struct cam_periph *periph, union ccb *start_ccb) 1782 { 1783 struct bio *bp; 1784 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 1785 struct sdda_part *part; 1786 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1787 uint8_t part_index; 1788 1789 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddastart\n")); 1790 1791 if (softc->state != SDDA_STATE_NORMAL) { 1792 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("device is not in SDDA_STATE_NORMAL yet\n")); 1793 xpt_release_ccb(start_ccb); 1794 return; 1795 } 1796 1797 /* Find partition that has outstanding commands. Prefer current partition. */ 1798 part_index = softc->part_curr; 1799 part = softc->part[softc->part_curr]; 1800 bp = bioq_first(&part->bio_queue); 1801 if (bp == NULL) { 1802 for (part_index = 0; part_index < MMC_PART_MAX; part_index++) { 1803 if ((part = softc->part[part_index]) != NULL && 1804 (bp = bioq_first(&softc->part[part_index]->bio_queue)) != NULL) 1805 break; 1806 } 1807 } 1808 if (bp == NULL) { 1809 xpt_release_ccb(start_ccb); 1810 return; 1811 } 1812 if (part_index != softc->part_curr) { 1813 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1814 ("Partition %d -> %d\n", softc->part_curr, part_index)); 1815 /* 1816 * According to section "6.2.2 Command restrictions" of the eMMC 1817 * specification v5.1, CMD19/CMD21 aren't allowed to be used with 1818 * RPMB partitions. So we pause re-tuning along with triggering 1819 * it up-front to decrease the likelihood of re-tuning becoming 1820 * necessary while accessing an RPMB partition. Consequently, an 1821 * RPMB partition should immediately be switched away from again 1822 * after an access in order to allow for re-tuning to take place 1823 * anew. 1824 */ 1825 /* TODO: pause retune if switching to RPMB partition */ 1826 softc->state = SDDA_STATE_PART_SWITCH; 1827 sdda_init_switch_part(periph, start_ccb, part_index); 1828 return; 1829 } 1830 1831 bioq_remove(&part->bio_queue, bp); 1832 1833 switch (bp->bio_cmd) { 1834 case BIO_WRITE: 1835 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_WRITE\n")); 1836 part->flags |= SDDA_FLAG_DIRTY; 1837 /* FALLTHROUGH */ 1838 case BIO_READ: 1839 { 1840 struct ccb_mmcio *mmcio; 1841 uint64_t blockno = bp->bio_pblkno; 1842 uint16_t count = bp->bio_bcount / MMC_SECTOR_SIZE; 1843 uint16_t opcode; 1844 1845 if (bp->bio_cmd == BIO_READ) 1846 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_READ\n")); 1847 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1848 ("Block %"PRIu64" cnt %u\n", blockno, count)); 1849 1850 /* Construct new MMC command */ 1851 if (bp->bio_cmd == BIO_READ) { 1852 if (count > 1) 1853 opcode = MMC_READ_MULTIPLE_BLOCK; 1854 else 1855 opcode = MMC_READ_SINGLE_BLOCK; 1856 } else { 1857 if (count > 1) 1858 opcode = MMC_WRITE_MULTIPLE_BLOCK; 1859 else 1860 opcode = MMC_WRITE_BLOCK; 1861 } 1862 1863 start_ccb->ccb_h.func_code = XPT_MMC_IO; 1864 start_ccb->ccb_h.flags = (bp->bio_cmd == BIO_READ ? CAM_DIR_IN : CAM_DIR_OUT); 1865 start_ccb->ccb_h.retry_count = 0; 1866 start_ccb->ccb_h.timeout = 15 * 1000; 1867 start_ccb->ccb_h.cbfcnp = sddadone; 1868 1869 mmcio = &start_ccb->mmcio; 1870 mmcio->cmd.opcode = opcode; 1871 mmcio->cmd.arg = blockno; 1872 if (!(mmcp->card_features & CARD_FEATURE_SDHC)) 1873 mmcio->cmd.arg <<= 9; 1874 1875 mmcio->cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; 1876 mmcio->cmd.data = softc->mmcdata; 1877 memset(mmcio->cmd.data, 0, sizeof(struct mmc_data)); 1878 mmcio->cmd.data->data = bp->bio_data; 1879 mmcio->cmd.data->len = MMC_SECTOR_SIZE * count; 1880 mmcio->cmd.data->flags = (bp->bio_cmd == BIO_READ ? MMC_DATA_READ : MMC_DATA_WRITE); 1881 /* Direct h/w to issue CMD12 upon completion */ 1882 if (count > 1) { 1883 mmcio->cmd.data->flags |= MMC_DATA_MULTI; 1884 mmcio->stop.opcode = MMC_STOP_TRANSMISSION; 1885 mmcio->stop.flags = MMC_RSP_R1B | MMC_CMD_AC; 1886 mmcio->stop.arg = 0; 1887 } 1888 1889 break; 1890 } 1891 case BIO_FLUSH: 1892 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_FLUSH\n")); 1893 sddaschedule(periph); 1894 break; 1895 case BIO_DELETE: 1896 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_DELETE\n")); 1897 sddaschedule(periph); 1898 break; 1899 default: 1900 biofinish(bp, NULL, EOPNOTSUPP); 1901 xpt_release_ccb(start_ccb); 1902 return; 1903 } 1904 start_ccb->ccb_h.ccb_bp = bp; 1905 softc->outstanding_cmds++; 1906 softc->refcount++; 1907 cam_periph_unlock(periph); 1908 xpt_action(start_ccb); 1909 cam_periph_lock(periph); 1910 1911 /* May have more work to do, so ensure we stay scheduled */ 1912 sddaschedule(periph); 1913 } 1914 1915 static void 1916 sddadone(struct cam_periph *periph, union ccb *done_ccb) 1917 { 1918 struct bio *bp; 1919 struct sdda_softc *softc; 1920 struct ccb_mmcio *mmcio; 1921 struct cam_path *path; 1922 uint32_t card_status; 1923 int error = 0; 1924 1925 softc = (struct sdda_softc *)periph->softc; 1926 mmcio = &done_ccb->mmcio; 1927 path = done_ccb->ccb_h.path; 1928 1929 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("sddadone\n")); 1930 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1931 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("Error!!!\n")); 1932 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1933 cam_release_devq(path, 1934 /*relsim_flags*/0, 1935 /*reduction*/0, 1936 /*timeout*/0, 1937 /*getcount_only*/0); 1938 error = EIO; 1939 } else { 1940 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1941 panic("REQ_CMP with QFRZN"); 1942 error = 0; 1943 } 1944 1945 card_status = mmcio->cmd.resp[0]; 1946 CAM_DEBUG(path, CAM_DEBUG_TRACE, 1947 ("Card status: %08x\n", R1_STATUS(card_status))); 1948 CAM_DEBUG(path, CAM_DEBUG_TRACE, 1949 ("Current state: %d\n", R1_CURRENT_STATE(card_status))); 1950 1951 /* Process result of switching MMC partitions */ 1952 if (softc->state == SDDA_STATE_PART_SWITCH) { 1953 CAM_DEBUG(path, CAM_DEBUG_TRACE, 1954 ("Completing partition switch to %d\n", 1955 softc->part_requested)); 1956 softc->outstanding_cmds--; 1957 /* Complete partition switch */ 1958 softc->state = SDDA_STATE_NORMAL; 1959 if (error != 0) { 1960 /* TODO: Unpause retune if accessing RPMB */ 1961 xpt_release_ccb(done_ccb); 1962 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1963 return; 1964 } 1965 1966 softc->raw_ext_csd[EXT_CSD_PART_CONFIG] = 1967 (softc->raw_ext_csd[EXT_CSD_PART_CONFIG] & 1968 ~EXT_CSD_PART_CONFIG_ACC_MASK) | softc->part_requested; 1969 /* TODO: Unpause retune if accessing RPMB */ 1970 softc->part_curr = softc->part_requested; 1971 xpt_release_ccb(done_ccb); 1972 1973 /* Return to processing BIO requests */ 1974 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1975 return; 1976 } 1977 1978 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1979 bp->bio_error = error; 1980 if (error != 0) { 1981 bp->bio_resid = bp->bio_bcount; 1982 bp->bio_flags |= BIO_ERROR; 1983 } else { 1984 /* XXX: How many bytes remaining? */ 1985 bp->bio_resid = 0; 1986 if (bp->bio_resid > 0) 1987 bp->bio_flags |= BIO_ERROR; 1988 } 1989 1990 softc->outstanding_cmds--; 1991 xpt_release_ccb(done_ccb); 1992 /* 1993 * Release the periph refcount taken in sddastart() for each CCB. 1994 */ 1995 KASSERT(softc->refcount >= 1, ("sddadone softc %p refcount %d", softc, softc->refcount)); 1996 softc->refcount--; 1997 biodone(bp); 1998 } 1999 2000 static int 2001 sddaerror(union ccb *ccb, uint32_t cam_flags, uint32_t sense_flags) 2002 { 2003 return(cam_periph_error(ccb, cam_flags, sense_flags)); 2004 } 2005 2006 static int 2007 sddadump(void *arg, void *virtual, off_t offset, size_t length) 2008 { 2009 struct ccb_mmcio mmcio; 2010 struct disk *dp; 2011 struct sdda_part *part; 2012 struct sdda_softc *softc; 2013 struct cam_periph *periph; 2014 struct mmc_params *mmcp; 2015 uint16_t count; 2016 uint16_t opcode; 2017 int error; 2018 2019 dp = arg; 2020 part = dp->d_drv1; 2021 softc = part->sc; 2022 periph = softc->periph; 2023 mmcp = &periph->path->device->mmc_ident_data; 2024 2025 if (softc->state != SDDA_STATE_NORMAL) 2026 return (ENXIO); 2027 2028 count = length / MMC_SECTOR_SIZE; 2029 if (count == 0) 2030 return (0); 2031 2032 if (softc->part[softc->part_curr] != part) 2033 return (EIO); /* TODO implement polled partition switch */ 2034 2035 memset(&mmcio, 0, sizeof(mmcio)); 2036 xpt_setup_ccb(&mmcio.ccb_h, periph->path, CAM_PRIORITY_NORMAL); /* XXX needed? */ 2037 2038 mmcio.ccb_h.func_code = XPT_MMC_IO; 2039 mmcio.ccb_h.flags = CAM_DIR_OUT; 2040 mmcio.ccb_h.retry_count = 0; 2041 mmcio.ccb_h.timeout = 15 * 1000; 2042 2043 if (count > 1) 2044 opcode = MMC_WRITE_MULTIPLE_BLOCK; 2045 else 2046 opcode = MMC_WRITE_BLOCK; 2047 mmcio.cmd.opcode = opcode; 2048 mmcio.cmd.arg = offset / MMC_SECTOR_SIZE; 2049 if (!(mmcp->card_features & CARD_FEATURE_SDHC)) 2050 mmcio.cmd.arg <<= 9; 2051 2052 mmcio.cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; 2053 mmcio.cmd.data = softc->mmcdata; 2054 memset(mmcio.cmd.data, 0, sizeof(struct mmc_data)); 2055 mmcio.cmd.data->data = virtual; 2056 mmcio.cmd.data->len = MMC_SECTOR_SIZE * count; 2057 mmcio.cmd.data->flags = MMC_DATA_WRITE; 2058 2059 /* Direct h/w to issue CMD12 upon completion */ 2060 if (count > 1) { 2061 mmcio.cmd.data->flags |= MMC_DATA_MULTI; 2062 mmcio.stop.opcode = MMC_STOP_TRANSMISSION; 2063 mmcio.stop.flags = MMC_RSP_R1B | MMC_CMD_AC; 2064 mmcio.stop.arg = 0; 2065 } 2066 2067 error = cam_periph_runccb((union ccb *)&mmcio, cam_periph_error, 2068 0, SF_NO_RECOVERY | SF_NO_RETRY, NULL); 2069 if (error != 0) 2070 printf("Aborting dump due to I/O error.\n"); 2071 return (error); 2072 } 2073 2074 #endif /* _KERNEL */ 2075