1 /*- 2 * Copyright (c) 2006 Bernd Walter <tisco@FreeBSD.org> 3 * Copyright (c) 2006 M. Warner Losh <imp@FreeBSD.org> 4 * Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org> 5 * Copyright (c) 2015-2017 Ilya Bakulin <kibab@FreeBSD.org> 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer, 13 * without modification, immediately at the beginning of the file. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * Some code derived from the sys/dev/mmc and sys/cam/ata 30 * Thanks to Warner Losh <imp@FreeBSD.org>, Alexander Motin <mav@FreeBSD.org> 31 * Bernd Walter <tisco@FreeBSD.org>, and other authors. 32 */ 33 34 #include <sys/cdefs.h> 35 __FBSDID("$FreeBSD$"); 36 37 //#include "opt_sdda.h" 38 39 #include <sys/param.h> 40 41 #ifdef _KERNEL 42 #include <sys/systm.h> 43 #include <sys/kernel.h> 44 #include <sys/bio.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 77 #include <cam/mmc/mmc_all.h> 78 79 #include <machine/md_var.h> /* geometry translation */ 80 81 #ifdef _KERNEL 82 83 typedef enum { 84 SDDA_FLAG_OPEN = 0x0002, 85 SDDA_FLAG_DIRTY = 0x0004 86 } sdda_flags; 87 88 typedef enum { 89 SDDA_STATE_INIT, 90 SDDA_STATE_INVALID, 91 SDDA_STATE_NORMAL 92 } sdda_state; 93 94 struct sdda_softc { 95 struct bio_queue_head bio_queue; 96 int outstanding_cmds; /* Number of active commands */ 97 int refcount; /* Active xpt_action() calls */ 98 sdda_state state; 99 sdda_flags flags; 100 struct mmc_data *mmcdata; 101 // sdda_quirks quirks; 102 struct task start_init_task; 103 struct disk *disk; 104 uint32_t raw_csd[4]; 105 uint8_t raw_ext_csd[512]; /* MMC only? */ 106 struct mmc_csd csd; 107 struct mmc_cid cid; 108 struct mmc_scr scr; 109 /* Calculated from CSD */ 110 uint64_t sector_count; 111 uint64_t mediasize; 112 113 /* Calculated from CID */ 114 char card_id_string[64];/* Formatted CID info (serial, MFG, etc) */ 115 char card_sn_string[16];/* Formatted serial # for disk->d_ident */ 116 /* Determined from CSD + is highspeed card*/ 117 uint32_t card_f_max; 118 }; 119 120 #define ccb_bp ppriv_ptr1 121 122 static disk_strategy_t sddastrategy; 123 static periph_init_t sddainit; 124 static void sddaasync(void *callback_arg, u_int32_t code, 125 struct cam_path *path, void *arg); 126 static periph_ctor_t sddaregister; 127 static periph_dtor_t sddacleanup; 128 static periph_start_t sddastart; 129 static periph_oninv_t sddaoninvalidate; 130 static void sddadone(struct cam_periph *periph, 131 union ccb *done_ccb); 132 static int sddaerror(union ccb *ccb, u_int32_t cam_flags, 133 u_int32_t sense_flags); 134 135 static uint16_t get_rca(struct cam_periph *periph); 136 static cam_status sdda_hook_into_geom(struct cam_periph *periph); 137 static void sdda_start_init(void *context, union ccb *start_ccb); 138 static void sdda_start_init_task(void *context, int pending); 139 140 static struct periph_driver sddadriver = 141 { 142 sddainit, "sdda", 143 TAILQ_HEAD_INITIALIZER(sddadriver.units), /* generation */ 0 144 }; 145 146 PERIPHDRIVER_DECLARE(sdda, sddadriver); 147 148 static MALLOC_DEFINE(M_SDDA, "sd_da", "sd_da buffers"); 149 150 static const int exp[8] = { 151 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000 152 }; 153 154 static const int mant[16] = { 155 0, 10, 12, 13, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70, 80 156 }; 157 158 static const int cur_min[8] = { 159 500, 1000, 5000, 10000, 25000, 35000, 60000, 100000 160 }; 161 162 static const int cur_max[8] = { 163 1000, 5000, 10000, 25000, 35000, 45000, 800000, 200000 164 }; 165 166 static uint16_t 167 get_rca(struct cam_periph *periph) { 168 return periph->path->device->mmc_ident_data.card_rca; 169 } 170 171 static uint32_t 172 mmc_get_bits(uint32_t *bits, int bit_len, int start, int size) 173 { 174 const int i = (bit_len / 32) - (start / 32) - 1; 175 const int shift = start & 31; 176 uint32_t retval = bits[i] >> shift; 177 if (size + shift > 32) 178 retval |= bits[i - 1] << (32 - shift); 179 return (retval & ((1llu << size) - 1)); 180 } 181 182 183 static void 184 mmc_decode_csd_sd(uint32_t *raw_csd, struct mmc_csd *csd) 185 { 186 int v; 187 int m; 188 int e; 189 190 memset(csd, 0, sizeof(*csd)); 191 csd->csd_structure = v = mmc_get_bits(raw_csd, 128, 126, 2); 192 if (v == 0) { 193 m = mmc_get_bits(raw_csd, 128, 115, 4); 194 e = mmc_get_bits(raw_csd, 128, 112, 3); 195 csd->tacc = (exp[e] * mant[m] + 9) / 10; 196 csd->nsac = mmc_get_bits(raw_csd, 128, 104, 8) * 100; 197 m = mmc_get_bits(raw_csd, 128, 99, 4); 198 e = mmc_get_bits(raw_csd, 128, 96, 3); 199 csd->tran_speed = exp[e] * 10000 * mant[m]; 200 csd->ccc = mmc_get_bits(raw_csd, 128, 84, 12); 201 csd->read_bl_len = 1 << mmc_get_bits(raw_csd, 128, 80, 4); 202 csd->read_bl_partial = mmc_get_bits(raw_csd, 128, 79, 1); 203 csd->write_blk_misalign = mmc_get_bits(raw_csd, 128, 78, 1); 204 csd->read_blk_misalign = mmc_get_bits(raw_csd, 128, 77, 1); 205 csd->dsr_imp = mmc_get_bits(raw_csd, 128, 76, 1); 206 csd->vdd_r_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 59, 3)]; 207 csd->vdd_r_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 56, 3)]; 208 csd->vdd_w_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 53, 3)]; 209 csd->vdd_w_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 50, 3)]; 210 m = mmc_get_bits(raw_csd, 128, 62, 12); 211 e = mmc_get_bits(raw_csd, 128, 47, 3); 212 csd->capacity = ((1 + m) << (e + 2)) * csd->read_bl_len; 213 csd->erase_blk_en = mmc_get_bits(raw_csd, 128, 46, 1); 214 csd->erase_sector = mmc_get_bits(raw_csd, 128, 39, 7) + 1; 215 csd->wp_grp_size = mmc_get_bits(raw_csd, 128, 32, 7); 216 csd->wp_grp_enable = mmc_get_bits(raw_csd, 128, 31, 1); 217 csd->r2w_factor = 1 << mmc_get_bits(raw_csd, 128, 26, 3); 218 csd->write_bl_len = 1 << mmc_get_bits(raw_csd, 128, 22, 4); 219 csd->write_bl_partial = mmc_get_bits(raw_csd, 128, 21, 1); 220 } else if (v == 1) { 221 m = mmc_get_bits(raw_csd, 128, 115, 4); 222 e = mmc_get_bits(raw_csd, 128, 112, 3); 223 csd->tacc = (exp[e] * mant[m] + 9) / 10; 224 csd->nsac = mmc_get_bits(raw_csd, 128, 104, 8) * 100; 225 m = mmc_get_bits(raw_csd, 128, 99, 4); 226 e = mmc_get_bits(raw_csd, 128, 96, 3); 227 csd->tran_speed = exp[e] * 10000 * mant[m]; 228 csd->ccc = mmc_get_bits(raw_csd, 128, 84, 12); 229 csd->read_bl_len = 1 << mmc_get_bits(raw_csd, 128, 80, 4); 230 csd->read_bl_partial = mmc_get_bits(raw_csd, 128, 79, 1); 231 csd->write_blk_misalign = mmc_get_bits(raw_csd, 128, 78, 1); 232 csd->read_blk_misalign = mmc_get_bits(raw_csd, 128, 77, 1); 233 csd->dsr_imp = mmc_get_bits(raw_csd, 128, 76, 1); 234 csd->capacity = ((uint64_t)mmc_get_bits(raw_csd, 128, 48, 22) + 1) * 235 512 * 1024; 236 csd->erase_blk_en = mmc_get_bits(raw_csd, 128, 46, 1); 237 csd->erase_sector = mmc_get_bits(raw_csd, 128, 39, 7) + 1; 238 csd->wp_grp_size = mmc_get_bits(raw_csd, 128, 32, 7); 239 csd->wp_grp_enable = mmc_get_bits(raw_csd, 128, 31, 1); 240 csd->r2w_factor = 1 << mmc_get_bits(raw_csd, 128, 26, 3); 241 csd->write_bl_len = 1 << mmc_get_bits(raw_csd, 128, 22, 4); 242 csd->write_bl_partial = mmc_get_bits(raw_csd, 128, 21, 1); 243 } else 244 panic("unknown SD CSD version"); 245 } 246 247 static void 248 mmc_decode_csd_mmc(uint32_t *raw_csd, struct mmc_csd *csd) 249 { 250 int m; 251 int e; 252 253 memset(csd, 0, sizeof(*csd)); 254 csd->csd_structure = mmc_get_bits(raw_csd, 128, 126, 2); 255 csd->spec_vers = mmc_get_bits(raw_csd, 128, 122, 4); 256 m = mmc_get_bits(raw_csd, 128, 115, 4); 257 e = mmc_get_bits(raw_csd, 128, 112, 3); 258 csd->tacc = exp[e] * mant[m] + 9 / 10; 259 csd->nsac = mmc_get_bits(raw_csd, 128, 104, 8) * 100; 260 m = mmc_get_bits(raw_csd, 128, 99, 4); 261 e = mmc_get_bits(raw_csd, 128, 96, 3); 262 csd->tran_speed = exp[e] * 10000 * mant[m]; 263 csd->ccc = mmc_get_bits(raw_csd, 128, 84, 12); 264 csd->read_bl_len = 1 << mmc_get_bits(raw_csd, 128, 80, 4); 265 csd->read_bl_partial = mmc_get_bits(raw_csd, 128, 79, 1); 266 csd->write_blk_misalign = mmc_get_bits(raw_csd, 128, 78, 1); 267 csd->read_blk_misalign = mmc_get_bits(raw_csd, 128, 77, 1); 268 csd->dsr_imp = mmc_get_bits(raw_csd, 128, 76, 1); 269 csd->vdd_r_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 59, 3)]; 270 csd->vdd_r_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 56, 3)]; 271 csd->vdd_w_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 53, 3)]; 272 csd->vdd_w_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 50, 3)]; 273 m = mmc_get_bits(raw_csd, 128, 62, 12); 274 e = mmc_get_bits(raw_csd, 128, 47, 3); 275 csd->capacity = ((1 + m) << (e + 2)) * csd->read_bl_len; 276 csd->erase_blk_en = 0; 277 csd->erase_sector = (mmc_get_bits(raw_csd, 128, 42, 5) + 1) * 278 (mmc_get_bits(raw_csd, 128, 37, 5) + 1); 279 csd->wp_grp_size = mmc_get_bits(raw_csd, 128, 32, 5); 280 csd->wp_grp_enable = mmc_get_bits(raw_csd, 128, 31, 1); 281 csd->r2w_factor = 1 << mmc_get_bits(raw_csd, 128, 26, 3); 282 csd->write_bl_len = 1 << mmc_get_bits(raw_csd, 128, 22, 4); 283 csd->write_bl_partial = mmc_get_bits(raw_csd, 128, 21, 1); 284 } 285 286 static void 287 mmc_decode_cid_sd(uint32_t *raw_cid, struct mmc_cid *cid) 288 { 289 int i; 290 291 /* There's no version info, so we take it on faith */ 292 memset(cid, 0, sizeof(*cid)); 293 cid->mid = mmc_get_bits(raw_cid, 128, 120, 8); 294 cid->oid = mmc_get_bits(raw_cid, 128, 104, 16); 295 for (i = 0; i < 5; i++) 296 cid->pnm[i] = mmc_get_bits(raw_cid, 128, 96 - i * 8, 8); 297 cid->pnm[5] = 0; 298 cid->prv = mmc_get_bits(raw_cid, 128, 56, 8); 299 cid->psn = mmc_get_bits(raw_cid, 128, 24, 32); 300 cid->mdt_year = mmc_get_bits(raw_cid, 128, 12, 8) + 2000; 301 cid->mdt_month = mmc_get_bits(raw_cid, 128, 8, 4); 302 } 303 304 static void 305 mmc_decode_cid_mmc(uint32_t *raw_cid, struct mmc_cid *cid) 306 { 307 int i; 308 309 /* There's no version info, so we take it on faith */ 310 memset(cid, 0, sizeof(*cid)); 311 cid->mid = mmc_get_bits(raw_cid, 128, 120, 8); 312 cid->oid = mmc_get_bits(raw_cid, 128, 104, 8); 313 for (i = 0; i < 6; i++) 314 cid->pnm[i] = mmc_get_bits(raw_cid, 128, 96 - i * 8, 8); 315 cid->pnm[6] = 0; 316 cid->prv = mmc_get_bits(raw_cid, 128, 48, 8); 317 cid->psn = mmc_get_bits(raw_cid, 128, 16, 32); 318 cid->mdt_month = mmc_get_bits(raw_cid, 128, 12, 4); 319 cid->mdt_year = mmc_get_bits(raw_cid, 128, 8, 4) + 1997; 320 } 321 322 static void 323 mmc_format_card_id_string(struct sdda_softc *sc, struct mmc_params *mmcp) 324 { 325 char oidstr[8]; 326 uint8_t c1; 327 uint8_t c2; 328 329 /* 330 * Format a card ID string for use by the mmcsd driver, it's what 331 * appears between the <> in the following: 332 * mmcsd0: 968MB <SD SD01G 8.0 SN 2686905 Mfg 08/2008 by 3 TN> at mmc0 333 * 22.5MHz/4bit/128-block 334 * 335 * Also format just the card serial number, which the mmcsd driver will 336 * use as the disk->d_ident string. 337 * 338 * The card_id_string in mmc_ivars is currently allocated as 64 bytes, 339 * and our max formatted length is currently 55 bytes if every field 340 * contains the largest value. 341 * 342 * Sometimes the oid is two printable ascii chars; when it's not, 343 * format it as 0xnnnn instead. 344 */ 345 c1 = (sc->cid.oid >> 8) & 0x0ff; 346 c2 = sc->cid.oid & 0x0ff; 347 if (c1 > 0x1f && c1 < 0x7f && c2 > 0x1f && c2 < 0x7f) 348 snprintf(oidstr, sizeof(oidstr), "%c%c", c1, c2); 349 else 350 snprintf(oidstr, sizeof(oidstr), "0x%04x", sc->cid.oid); 351 snprintf(sc->card_sn_string, sizeof(sc->card_sn_string), 352 "%08X", sc->cid.psn); 353 snprintf(sc->card_id_string, sizeof(sc->card_id_string), 354 "%s%s %s %d.%d SN %08X MFG %02d/%04d by %d %s", 355 mmcp->card_features & CARD_FEATURE_MMC ? "MMC" : "SD", 356 mmcp->card_features & CARD_FEATURE_SDHC ? "HC" : "", 357 sc->cid.pnm, sc->cid.prv >> 4, sc->cid.prv & 0x0f, 358 sc->cid.psn, sc->cid.mdt_month, sc->cid.mdt_year, 359 sc->cid.mid, oidstr); 360 } 361 362 static int 363 sddaopen(struct disk *dp) 364 { 365 struct cam_periph *periph; 366 struct sdda_softc *softc; 367 int error; 368 369 periph = (struct cam_periph *)dp->d_drv1; 370 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 371 return(ENXIO); 372 } 373 374 cam_periph_lock(periph); 375 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) { 376 cam_periph_unlock(periph); 377 cam_periph_release(periph); 378 return (error); 379 } 380 381 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 382 ("sddaopen\n")); 383 384 softc = (struct sdda_softc *)periph->softc; 385 softc->flags |= SDDA_FLAG_OPEN; 386 387 cam_periph_unhold(periph); 388 cam_periph_unlock(periph); 389 return (0); 390 } 391 392 static int 393 sddaclose(struct disk *dp) 394 { 395 struct cam_periph *periph; 396 struct sdda_softc *softc; 397 // union ccb *ccb; 398 // int error; 399 400 periph = (struct cam_periph *)dp->d_drv1; 401 softc = (struct sdda_softc *)periph->softc; 402 softc->flags &= ~SDDA_FLAG_OPEN; 403 404 cam_periph_lock(periph); 405 406 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH, 407 ("sddaclose\n")); 408 409 while (softc->refcount != 0) 410 cam_periph_sleep(periph, &softc->refcount, PRIBIO, "sddaclose", 1); 411 cam_periph_unlock(periph); 412 cam_periph_release(periph); 413 return (0); 414 } 415 416 static void 417 sddaschedule(struct cam_periph *periph) 418 { 419 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 420 421 /* Check if we have more work to do. */ 422 if (bioq_first(&softc->bio_queue)) { 423 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 424 } 425 } 426 427 /* 428 * Actually translate the requested transfer into one the physical driver 429 * can understand. The transfer is described by a buf and will include 430 * only one physical transfer. 431 */ 432 static void 433 sddastrategy(struct bio *bp) 434 { 435 struct cam_periph *periph; 436 struct sdda_softc *softc; 437 438 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 439 softc = (struct sdda_softc *)periph->softc; 440 441 cam_periph_lock(periph); 442 443 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddastrategy(%p)\n", bp)); 444 445 /* 446 * If the device has been made invalid, error out 447 */ 448 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 449 cam_periph_unlock(periph); 450 biofinish(bp, NULL, ENXIO); 451 return; 452 } 453 454 /* 455 * Place it in the queue of disk activities for this disk 456 */ 457 bioq_disksort(&softc->bio_queue, bp); 458 459 /* 460 * Schedule ourselves for performing the work. 461 */ 462 sddaschedule(periph); 463 cam_periph_unlock(periph); 464 465 return; 466 } 467 468 static void 469 sddainit(void) 470 { 471 cam_status status; 472 473 /* 474 * Install a global async callback. This callback will 475 * receive async callbacks like "new device found". 476 */ 477 status = xpt_register_async(AC_FOUND_DEVICE, sddaasync, NULL, NULL); 478 479 if (status != CAM_REQ_CMP) { 480 printf("sdda: Failed to attach master async callback " 481 "due to status 0x%x!\n", status); 482 } 483 } 484 485 /* 486 * Callback from GEOM, called when it has finished cleaning up its 487 * resources. 488 */ 489 static void 490 sddadiskgonecb(struct disk *dp) 491 { 492 struct cam_periph *periph; 493 494 periph = (struct cam_periph *)dp->d_drv1; 495 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddadiskgonecb\n")); 496 497 cam_periph_release(periph); 498 } 499 500 static void 501 sddaoninvalidate(struct cam_periph *periph) 502 { 503 struct sdda_softc *softc; 504 505 softc = (struct sdda_softc *)periph->softc; 506 507 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddaoninvalidate\n")); 508 509 /* 510 * De-register any async callbacks. 511 */ 512 xpt_register_async(0, sddaasync, periph, periph->path); 513 514 /* 515 * Return all queued I/O with ENXIO. 516 * XXX Handle any transactions queued to the card 517 * with XPT_ABORT_CCB. 518 */ 519 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("bioq_flush start\n")); 520 bioq_flush(&softc->bio_queue, NULL, ENXIO); 521 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("bioq_flush end\n")); 522 523 disk_gone(softc->disk); 524 } 525 526 static void 527 sddacleanup(struct cam_periph *periph) 528 { 529 struct sdda_softc *softc; 530 531 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddacleanup\n")); 532 softc = (struct sdda_softc *)periph->softc; 533 534 cam_periph_unlock(periph); 535 536 disk_destroy(softc->disk); 537 free(softc, M_DEVBUF); 538 cam_periph_lock(periph); 539 } 540 541 static void 542 sddaasync(void *callback_arg, u_int32_t code, 543 struct cam_path *path, void *arg) 544 { 545 struct ccb_getdev cgd; 546 struct cam_periph *periph; 547 struct sdda_softc *softc; 548 549 periph = (struct cam_periph *)callback_arg; 550 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("sddaasync(code=%d)\n", code)); 551 switch (code) { 552 case AC_FOUND_DEVICE: 553 { 554 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("=> AC_FOUND_DEVICE\n")); 555 struct ccb_getdev *cgd; 556 cam_status status; 557 558 cgd = (struct ccb_getdev *)arg; 559 if (cgd == NULL) 560 break; 561 562 if (cgd->protocol != PROTO_MMCSD) 563 break; 564 565 if (!(path->device->mmc_ident_data.card_features & CARD_FEATURE_MEMORY)) { 566 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("No memory on the card!\n")); 567 break; 568 } 569 570 /* 571 * Allocate a peripheral instance for 572 * this device and start the probe 573 * process. 574 */ 575 status = cam_periph_alloc(sddaregister, sddaoninvalidate, 576 sddacleanup, sddastart, 577 "sdda", CAM_PERIPH_BIO, 578 path, sddaasync, 579 AC_FOUND_DEVICE, cgd); 580 581 if (status != CAM_REQ_CMP 582 && status != CAM_REQ_INPROG) 583 printf("sddaasync: Unable to attach to new device " 584 "due to status 0x%x\n", status); 585 break; 586 } 587 case AC_GETDEV_CHANGED: 588 { 589 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("=> AC_GETDEV_CHANGED\n")); 590 softc = (struct sdda_softc *)periph->softc; 591 xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 592 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 593 xpt_action((union ccb *)&cgd); 594 cam_periph_async(periph, code, path, arg); 595 break; 596 } 597 case AC_ADVINFO_CHANGED: 598 { 599 uintptr_t buftype; 600 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("=> AC_ADVINFO_CHANGED\n")); 601 buftype = (uintptr_t)arg; 602 if (buftype == CDAI_TYPE_PHYS_PATH) { 603 struct sdda_softc *softc; 604 605 softc = periph->softc; 606 disk_attr_changed(softc->disk, "GEOM::physpath", 607 M_NOWAIT); 608 } 609 break; 610 } 611 case AC_SENT_BDR: 612 case AC_BUS_RESET: 613 { 614 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("AC_BUS_RESET")); 615 } 616 default: 617 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("=> default?!\n")); 618 cam_periph_async(periph, code, path, arg); 619 break; 620 } 621 } 622 623 624 static int 625 sddagetattr(struct bio *bp) 626 { 627 int ret; 628 struct cam_periph *periph; 629 630 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 631 cam_periph_lock(periph); 632 ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute, 633 periph->path); 634 cam_periph_unlock(periph); 635 if (ret == 0) 636 bp->bio_completed = bp->bio_length; 637 return ret; 638 } 639 640 static cam_status 641 sddaregister(struct cam_periph *periph, void *arg) 642 { 643 struct sdda_softc *softc; 644 // struct ccb_pathinq cpi; 645 struct ccb_getdev *cgd; 646 // char announce_buf[80], buf1[32]; 647 // caddr_t match; 648 union ccb *request_ccb; /* CCB representing the probe request */ 649 650 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddaregister\n")); 651 cgd = (struct ccb_getdev *)arg; 652 if (cgd == NULL) { 653 printf("sddaregister: no getdev CCB, can't register device\n"); 654 return(CAM_REQ_CMP_ERR); 655 } 656 657 softc = (struct sdda_softc *)malloc(sizeof(*softc), M_DEVBUF, 658 M_NOWAIT|M_ZERO); 659 660 if (softc == NULL) { 661 printf("sddaregister: Unable to probe new device. " 662 "Unable to allocate softc\n"); 663 return(CAM_REQ_CMP_ERR); 664 } 665 666 bioq_init(&softc->bio_queue); 667 softc->state = SDDA_STATE_INIT; 668 softc->mmcdata = 669 (struct mmc_data *) malloc(sizeof(struct mmc_data), M_DEVBUF, M_NOWAIT|M_ZERO); 670 periph->softc = softc; 671 672 request_ccb = (union ccb*) arg; 673 xpt_schedule(periph, CAM_PRIORITY_XPT); 674 TASK_INIT(&softc->start_init_task, 0, sdda_start_init_task, periph); 675 taskqueue_enqueue(taskqueue_thread, &softc->start_init_task); 676 677 return (CAM_REQ_CMP); 678 } 679 680 static cam_status 681 sdda_hook_into_geom(struct cam_periph *periph) 682 { 683 struct sdda_softc *softc; 684 struct ccb_pathinq cpi; 685 struct ccb_getdev cgd; 686 u_int maxio; 687 688 softc = (struct sdda_softc*) periph->softc; 689 690 bzero(&cpi, sizeof(cpi)); 691 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE); 692 cpi.ccb_h.func_code = XPT_PATH_INQ; 693 xpt_action((union ccb *)&cpi); 694 695 bzero(&cgd, sizeof(cgd)); 696 xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NONE); 697 cpi.ccb_h.func_code = XPT_GDEV_TYPE; 698 xpt_action((union ccb *)&cgd); 699 700 /* 701 * Register this media as a disk 702 */ 703 (void)cam_periph_hold(periph, PRIBIO); 704 cam_periph_unlock(periph); 705 706 softc->disk = disk_alloc(); 707 softc->disk->d_rotation_rate = 0; 708 softc->disk->d_devstat = devstat_new_entry(periph->periph_name, 709 periph->unit_number, 512, 710 DEVSTAT_ALL_SUPPORTED, 711 DEVSTAT_TYPE_DIRECT | 712 XPORT_DEVSTAT_TYPE(cpi.transport), 713 DEVSTAT_PRIORITY_DISK); 714 softc->disk->d_open = sddaopen; 715 softc->disk->d_close = sddaclose; 716 softc->disk->d_strategy = sddastrategy; 717 softc->disk->d_getattr = sddagetattr; 718 // softc->disk->d_dump = sddadump; 719 softc->disk->d_gone = sddadiskgonecb; 720 softc->disk->d_name = "sdda"; 721 softc->disk->d_drv1 = periph; 722 maxio = cpi.maxio; /* Honor max I/O size of SIM */ 723 if (maxio == 0) 724 maxio = DFLTPHYS; /* traditional default */ 725 else if (maxio > MAXPHYS) 726 maxio = MAXPHYS; /* for safety */ 727 softc->disk->d_maxsize = maxio; 728 softc->disk->d_unit = periph->unit_number; 729 softc->disk->d_flags = DISKFLAG_CANDELETE; 730 strlcpy(softc->disk->d_descr, softc->card_id_string, 731 MIN(sizeof(softc->disk->d_descr), sizeof(softc->card_id_string))); 732 strlcpy(softc->disk->d_ident, softc->card_sn_string, 733 MIN(sizeof(softc->disk->d_ident), sizeof(softc->card_sn_string))); 734 softc->disk->d_hba_vendor = cpi.hba_vendor; 735 softc->disk->d_hba_device = cpi.hba_device; 736 softc->disk->d_hba_subvendor = cpi.hba_subvendor; 737 softc->disk->d_hba_subdevice = cpi.hba_subdevice; 738 739 softc->disk->d_sectorsize = 512; 740 softc->disk->d_mediasize = softc->mediasize; 741 softc->disk->d_stripesize = 0; 742 softc->disk->d_fwsectors = 0; 743 softc->disk->d_fwheads = 0; 744 745 /* 746 * Acquire a reference to the periph before we register with GEOM. 747 * We'll release this reference once GEOM calls us back (via 748 * sddadiskgonecb()) telling us that our provider has been freed. 749 */ 750 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 751 xpt_print(periph->path, "%s: lost periph during " 752 "registration!\n", __func__); 753 cam_periph_lock(periph); 754 return (CAM_REQ_CMP_ERR); 755 } 756 disk_create(softc->disk, DISK_VERSION); 757 cam_periph_lock(periph); 758 cam_periph_unhold(periph); 759 760 xpt_announce_periph(periph, softc->card_id_string); 761 762 /* 763 * Add async callbacks for bus reset and 764 * bus device reset calls. I don't bother 765 * checking if this fails as, in most cases, 766 * the system will function just fine without 767 * them and the only alternative would be to 768 * not attach the device on failure. 769 */ 770 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE | 771 AC_GETDEV_CHANGED | AC_ADVINFO_CHANGED, 772 sddaasync, periph, periph->path); 773 774 return(CAM_REQ_CMP); 775 } 776 777 static int 778 mmc_exec_app_cmd(struct cam_periph *periph, union ccb *ccb, 779 struct mmc_command *cmd) { 780 int err; 781 782 /* Send APP_CMD first */ 783 memset(&ccb->mmcio.cmd, 0, sizeof(struct mmc_command)); 784 memset(&ccb->mmcio.stop, 0, sizeof(struct mmc_command)); 785 cam_fill_mmcio(&ccb->mmcio, 786 /*retries*/ 0, 787 /*cbfcnp*/ NULL, 788 /*flags*/ CAM_DIR_NONE, 789 /*mmc_opcode*/ MMC_APP_CMD, 790 /*mmc_arg*/ get_rca(periph) << 16, 791 /*mmc_flags*/ MMC_RSP_R1 | MMC_CMD_AC, 792 /*mmc_data*/ NULL, 793 /*timeout*/ 0); 794 795 err = cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 796 if (err != 0) 797 return err; 798 if (!(ccb->mmcio.cmd.resp[0] & R1_APP_CMD)) 799 return MMC_ERR_FAILED; 800 801 /* Now exec actual command */ 802 int flags = 0; 803 if (cmd->data != NULL) { 804 ccb->mmcio.cmd.data = cmd->data; 805 if (cmd->data->flags & MMC_DATA_READ) 806 flags |= CAM_DIR_IN; 807 if (cmd->data->flags & MMC_DATA_WRITE) 808 flags |= CAM_DIR_OUT; 809 } else flags = CAM_DIR_NONE; 810 811 cam_fill_mmcio(&ccb->mmcio, 812 /*retries*/ 0, 813 /*cbfcnp*/ NULL, 814 /*flags*/ flags, 815 /*mmc_opcode*/ cmd->opcode, 816 /*mmc_arg*/ cmd->arg, 817 /*mmc_flags*/ cmd->flags, 818 /*mmc_data*/ cmd->data, 819 /*timeout*/ 0); 820 821 err = cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 822 memcpy(cmd->resp, ccb->mmcio.cmd.resp, sizeof(cmd->resp)); 823 cmd->error = ccb->mmcio.cmd.error; 824 if (err != 0) 825 return err; 826 return 0; 827 } 828 829 static int 830 mmc_app_get_scr(struct cam_periph *periph, union ccb *ccb, uint32_t *rawscr) { 831 int err; 832 struct mmc_command cmd; 833 struct mmc_data d; 834 835 memset(&cmd, 0, sizeof(cmd)); 836 837 memset(rawscr, 0, 8); 838 cmd.opcode = ACMD_SEND_SCR; 839 cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; 840 cmd.arg = 0; 841 842 d.data = rawscr; 843 d.len = 8; 844 d.flags = MMC_DATA_READ; 845 cmd.data = &d; 846 847 err = mmc_exec_app_cmd(periph, ccb, &cmd); 848 rawscr[0] = be32toh(rawscr[0]); 849 rawscr[1] = be32toh(rawscr[1]); 850 return (err); 851 } 852 853 static int 854 mmc_send_ext_csd(struct cam_periph *periph, union ccb *ccb, 855 uint8_t *rawextcsd, size_t buf_len) { 856 int err; 857 struct mmc_data d; 858 859 KASSERT(buf_len == 512, ("Buffer for ext csd must be 512 bytes")); 860 d.data = rawextcsd; 861 d.len = buf_len; 862 d.flags = MMC_DATA_READ; 863 memset(d.data, 0, d.len); 864 865 cam_fill_mmcio(&ccb->mmcio, 866 /*retries*/ 0, 867 /*cbfcnp*/ NULL, 868 /*flags*/ CAM_DIR_IN, 869 /*mmc_opcode*/ MMC_SEND_EXT_CSD, 870 /*mmc_arg*/ 0, 871 /*mmc_flags*/ MMC_RSP_R1 | MMC_CMD_ADTC, 872 /*mmc_data*/ &d, 873 /*timeout*/ 0); 874 875 err = cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 876 if (err != 0) 877 return err; 878 if (!(ccb->mmcio.cmd.resp[0] & R1_APP_CMD)) 879 return MMC_ERR_FAILED; 880 881 return MMC_ERR_NONE; 882 } 883 884 static void 885 mmc_app_decode_scr(uint32_t *raw_scr, struct mmc_scr *scr) 886 { 887 unsigned int scr_struct; 888 889 memset(scr, 0, sizeof(*scr)); 890 891 scr_struct = mmc_get_bits(raw_scr, 64, 60, 4); 892 if (scr_struct != 0) { 893 printf("Unrecognised SCR structure version %d\n", 894 scr_struct); 895 return; 896 } 897 scr->sda_vsn = mmc_get_bits(raw_scr, 64, 56, 4); 898 scr->bus_widths = mmc_get_bits(raw_scr, 64, 48, 4); 899 } 900 901 static int 902 mmc_switch(struct cam_periph *periph, union ccb *ccb, 903 uint8_t set, uint8_t index, uint8_t value) 904 { 905 int arg = (MMC_SWITCH_FUNC_WR << 24) | 906 (index << 16) | 907 (value << 8) | 908 set; 909 cam_fill_mmcio(&ccb->mmcio, 910 /*retries*/ 0, 911 /*cbfcnp*/ NULL, 912 /*flags*/ CAM_DIR_NONE, 913 /*mmc_opcode*/ MMC_SWITCH_FUNC, 914 /*mmc_arg*/ arg, 915 /*mmc_flags*/ MMC_RSP_R1B | MMC_CMD_AC, 916 /*mmc_data*/ NULL, 917 /*timeout*/ 0); 918 919 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 920 921 if (((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP)) { 922 if (ccb->mmcio.cmd.error != 0) { 923 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_PERIPH, 924 ("%s: MMC command failed", __func__)); 925 return EIO; 926 } 927 return 0; /* Normal return */ 928 } else { 929 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_PERIPH, 930 ("%s: CAM request failed\n", __func__)); 931 return EIO; 932 } 933 934 } 935 936 static int 937 mmc_sd_switch(struct cam_periph *periph, union ccb *ccb, 938 uint8_t mode, uint8_t grp, uint8_t value, 939 uint8_t *res) { 940 941 struct mmc_data mmc_d; 942 943 memset(res, 0, 64); 944 mmc_d.len = 64; 945 mmc_d.data = res; 946 mmc_d.flags = MMC_DATA_READ; 947 948 cam_fill_mmcio(&ccb->mmcio, 949 /*retries*/ 0, 950 /*cbfcnp*/ NULL, 951 /*flags*/ CAM_DIR_IN, 952 /*mmc_opcode*/ SD_SWITCH_FUNC, 953 /*mmc_arg*/ mode << 31, 954 /*mmc_flags*/ MMC_RSP_R1 | MMC_CMD_ADTC, 955 /*mmc_data*/ &mmc_d, 956 /*timeout*/ 0); 957 958 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 959 960 if (((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP)) { 961 if (ccb->mmcio.cmd.error != 0) { 962 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_PERIPH, 963 ("%s: MMC command failed", __func__)); 964 return EIO; 965 } 966 return 0; /* Normal return */ 967 } else { 968 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_PERIPH, 969 ("%s: CAM request failed\n", __func__)); 970 return EIO; 971 } 972 } 973 974 static int 975 mmc_set_timing(struct cam_periph *periph, 976 union ccb *ccb, 977 enum mmc_bus_timing timing) 978 { 979 u_char switch_res[64]; 980 int err; 981 uint8_t value; 982 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 983 984 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, 985 ("mmc_set_timing(timing=%d)", timing)); 986 switch (timing) { 987 case bus_timing_normal: 988 value = 0; 989 break; 990 case bus_timing_hs: 991 value = 1; 992 break; 993 default: 994 return (MMC_ERR_INVALID); 995 } 996 if (mmcp->card_features & CARD_FEATURE_MMC) { 997 err = mmc_switch(periph, ccb, EXT_CSD_CMD_SET_NORMAL, 998 EXT_CSD_HS_TIMING, value); 999 } else { 1000 err = mmc_sd_switch(periph, ccb, SD_SWITCH_MODE_SET, SD_SWITCH_GROUP1, value, switch_res); 1001 } 1002 1003 /* Set high-speed timing on the host */ 1004 struct ccb_trans_settings_mmc *cts; 1005 cts = &ccb->cts.proto_specific.mmc; 1006 ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1007 ccb->ccb_h.flags = CAM_DIR_NONE; 1008 ccb->ccb_h.retry_count = 0; 1009 ccb->ccb_h.timeout = 100; 1010 ccb->ccb_h.cbfcnp = NULL; 1011 cts->ios.timing = timing; 1012 cts->ios_valid = MMC_BT; 1013 xpt_action(ccb); 1014 1015 return (err); 1016 } 1017 1018 static void 1019 sdda_start_init_task(void *context, int pending) { 1020 union ccb *new_ccb; 1021 struct cam_periph *periph; 1022 1023 periph = (struct cam_periph *)context; 1024 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sdda_start_init_task\n")); 1025 new_ccb = xpt_alloc_ccb(); 1026 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, 1027 CAM_PRIORITY_NONE); 1028 1029 cam_periph_lock(periph); 1030 sdda_start_init(context, new_ccb); 1031 cam_periph_unlock(periph); 1032 xpt_free_ccb(new_ccb); 1033 } 1034 1035 static void 1036 sdda_set_bus_width(struct cam_periph *periph, union ccb *ccb, int width) { 1037 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1038 int err; 1039 1040 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sdda_set_bus_width\n")); 1041 1042 /* First set for the card, then for the host */ 1043 if (mmcp->card_features & CARD_FEATURE_MMC) { 1044 uint8_t value; 1045 switch (width) { 1046 case bus_width_1: 1047 value = EXT_CSD_BUS_WIDTH_1; 1048 break; 1049 case bus_width_4: 1050 value = EXT_CSD_BUS_WIDTH_4; 1051 break; 1052 case bus_width_8: 1053 value = EXT_CSD_BUS_WIDTH_8; 1054 break; 1055 default: 1056 panic("Invalid bus width %d", width); 1057 } 1058 err = mmc_switch(periph, ccb, EXT_CSD_CMD_SET_NORMAL, 1059 EXT_CSD_BUS_WIDTH, value); 1060 } else { 1061 /* For SD cards we send ACMD6 with the required bus width in arg */ 1062 struct mmc_command cmd; 1063 memset(&cmd, 0, sizeof(struct mmc_command)); 1064 cmd.opcode = ACMD_SET_BUS_WIDTH; 1065 cmd.arg = width; 1066 cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 1067 err = mmc_exec_app_cmd(periph, ccb, &cmd); 1068 } 1069 1070 if (err != MMC_ERR_NONE) { 1071 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Error %d when setting bus width on the card\n", err)); 1072 return; 1073 } 1074 /* Now card is done, set the host to the same width */ 1075 struct ccb_trans_settings_mmc *cts; 1076 cts = &ccb->cts.proto_specific.mmc; 1077 ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1078 ccb->ccb_h.flags = CAM_DIR_NONE; 1079 ccb->ccb_h.retry_count = 0; 1080 ccb->ccb_h.timeout = 100; 1081 ccb->ccb_h.cbfcnp = NULL; 1082 cts->ios.bus_width = width; 1083 cts->ios_valid = MMC_BW; 1084 xpt_action(ccb); 1085 } 1086 1087 static inline const char *bus_width_str(enum mmc_bus_width w) { 1088 switch (w) { 1089 case bus_width_1: 1090 return "1-bit"; 1091 case bus_width_4: 1092 return "4-bit"; 1093 case bus_width_8: 1094 return "8-bit"; 1095 } 1096 } 1097 1098 static void 1099 sdda_start_init(void *context, union ccb *start_ccb) { 1100 struct cam_periph *periph; 1101 periph = (struct cam_periph *)context; 1102 int err; 1103 1104 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sdda_start_init\n")); 1105 /* periph was held for us when this task was enqueued */ 1106 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 1107 cam_periph_release(periph); 1108 return; 1109 } 1110 1111 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 1112 //struct ccb_mmcio *mmcio = &start_ccb->mmcio; 1113 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1114 struct cam_ed *device = periph->path->device; 1115 1116 if (mmcp->card_features & CARD_FEATURE_MMC) { 1117 mmc_decode_csd_mmc(mmcp->card_csd, &softc->csd); 1118 mmc_decode_cid_mmc(mmcp->card_cid, &softc->cid); 1119 if (softc->csd.spec_vers >= 4) 1120 err = mmc_send_ext_csd(periph, start_ccb, 1121 (uint8_t *)&softc->raw_ext_csd, 1122 sizeof(softc->raw_ext_csd)); 1123 } else { 1124 mmc_decode_csd_sd(mmcp->card_csd, &softc->csd); 1125 mmc_decode_cid_sd(mmcp->card_cid, &softc->cid); 1126 } 1127 1128 softc->sector_count = softc->csd.capacity / 512; 1129 softc->mediasize = softc->csd.capacity; 1130 1131 /* MMC >= 4.x have EXT_CSD that has its own opinion about capacity */ 1132 if (softc->csd.spec_vers >= 4) { 1133 uint32_t sec_count = softc->raw_ext_csd[EXT_CSD_SEC_CNT] + 1134 (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 1] << 8) + 1135 (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 2] << 16) + 1136 (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 3] << 24); 1137 if (sec_count != 0) { 1138 softc->sector_count = sec_count; 1139 softc->mediasize = softc->sector_count * 512; 1140 /* FIXME: there should be a better name for this option...*/ 1141 mmcp->card_features |= CARD_FEATURE_SDHC; 1142 } 1143 1144 } 1145 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1146 ("Capacity: %"PRIu64", sectors: %"PRIu64"\n", 1147 softc->mediasize, 1148 softc->sector_count)); 1149 mmc_format_card_id_string(softc, mmcp); 1150 1151 /* Update info for CAM */ 1152 device->serial_num_len = strlen(softc->card_sn_string); 1153 device->serial_num = 1154 (u_int8_t *)malloc((device->serial_num_len + 1), 1155 M_CAMXPT, M_NOWAIT); 1156 strlcpy(device->serial_num, softc->card_sn_string, device->serial_num_len); 1157 1158 device->device_id_len = strlen(softc->card_id_string); 1159 device->device_id = 1160 (u_int8_t *)malloc((device->device_id_len + 1), 1161 M_CAMXPT, M_NOWAIT); 1162 strlcpy(device->device_id, softc->card_id_string, device->device_id_len); 1163 1164 strlcpy(mmcp->model, softc->card_id_string, sizeof(mmcp->model)); 1165 1166 /* Set the clock frequency that the card can handle */ 1167 struct ccb_trans_settings_mmc *cts; 1168 cts = &start_ccb->cts.proto_specific.mmc; 1169 1170 /* First, get the host's max freq */ 1171 start_ccb->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1172 start_ccb->ccb_h.flags = CAM_DIR_NONE; 1173 start_ccb->ccb_h.retry_count = 0; 1174 start_ccb->ccb_h.timeout = 100; 1175 start_ccb->ccb_h.cbfcnp = NULL; 1176 xpt_action(start_ccb); 1177 1178 if (start_ccb->ccb_h.status != CAM_REQ_CMP) 1179 panic("Cannot get max host freq"); 1180 int host_f_max = cts->host_f_max; 1181 uint32_t host_caps = cts->host_caps; 1182 if (cts->ios.bus_width != bus_width_1) 1183 panic("Bus width in ios is not 1-bit"); 1184 1185 /* Now check if the card supports High-speed */ 1186 softc->card_f_max = softc->csd.tran_speed; 1187 1188 if (host_caps & MMC_CAP_HSPEED) { 1189 /* Find out if the card supports High speed timing */ 1190 if (mmcp->card_features & CARD_FEATURE_SD20) { 1191 /* Get and decode SCR */ 1192 uint32_t rawscr; 1193 uint8_t res[64]; 1194 if (mmc_app_get_scr(periph, start_ccb, &rawscr)) { 1195 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Cannot get SCR\n")); 1196 goto finish_hs_tests; 1197 } 1198 mmc_app_decode_scr(&rawscr, &softc->scr); 1199 1200 if ((softc->scr.sda_vsn >= 1) && (softc->csd.ccc & (1<<10))) { 1201 mmc_sd_switch(periph, start_ccb, SD_SWITCH_MODE_CHECK, 1202 SD_SWITCH_GROUP1, SD_SWITCH_NOCHANGE, res); 1203 if (res[13] & 2) { 1204 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Card supports HS\n")); 1205 softc->card_f_max = SD_HS_MAX; 1206 } 1207 } else { 1208 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Not trying the switch\n")); 1209 goto finish_hs_tests; 1210 } 1211 } 1212 1213 if (mmcp->card_features & CARD_FEATURE_MMC && softc->csd.spec_vers >= 4) { 1214 if (softc->raw_ext_csd[EXT_CSD_CARD_TYPE] 1215 & EXT_CSD_CARD_TYPE_HS_52) 1216 softc->card_f_max = MMC_TYPE_HS_52_MAX; 1217 else if (softc->raw_ext_csd[EXT_CSD_CARD_TYPE] 1218 & EXT_CSD_CARD_TYPE_HS_26) 1219 softc->card_f_max = MMC_TYPE_HS_26_MAX; 1220 } 1221 } 1222 int f_max; 1223 finish_hs_tests: 1224 f_max = min(host_f_max, softc->card_f_max); 1225 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)); 1226 1227 start_ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1228 start_ccb->ccb_h.flags = CAM_DIR_NONE; 1229 start_ccb->ccb_h.retry_count = 0; 1230 start_ccb->ccb_h.timeout = 100; 1231 start_ccb->ccb_h.cbfcnp = NULL; 1232 cts->ios.clock = f_max; 1233 cts->ios_valid = MMC_CLK; 1234 xpt_action(start_ccb); 1235 1236 /* Set bus width */ 1237 enum mmc_bus_width desired_bus_width = bus_width_1; 1238 enum mmc_bus_width max_host_bus_width = 1239 (host_caps & MMC_CAP_8_BIT_DATA ? bus_width_8 : 1240 host_caps & MMC_CAP_4_BIT_DATA ? bus_width_4 : bus_width_1); 1241 enum mmc_bus_width max_card_bus_width = bus_width_1; 1242 if (mmcp->card_features & CARD_FEATURE_SD20 && 1243 softc->scr.bus_widths & SD_SCR_BUS_WIDTH_4) 1244 max_card_bus_width = bus_width_4; 1245 /* 1246 * Unlike SD, MMC cards don't have any information about supported bus width... 1247 * So we need to perform read/write test to find out the width. 1248 */ 1249 /* TODO: figure out bus width for MMC; use 8-bit for now (to test on BBB) */ 1250 if (mmcp->card_features & CARD_FEATURE_MMC) 1251 max_card_bus_width = bus_width_8; 1252 1253 desired_bus_width = min(max_host_bus_width, max_card_bus_width); 1254 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1255 ("Set bus width to %s (min of host %s and card %s)\n", 1256 bus_width_str(desired_bus_width), 1257 bus_width_str(max_host_bus_width), 1258 bus_width_str(max_card_bus_width))); 1259 sdda_set_bus_width(periph, start_ccb, desired_bus_width); 1260 1261 if (f_max > 25000000) { 1262 err = mmc_set_timing(periph, start_ccb, bus_timing_hs); 1263 if (err != MMC_ERR_NONE) 1264 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("Cannot switch card to high-speed mode")); 1265 } 1266 softc->state = SDDA_STATE_NORMAL; 1267 sdda_hook_into_geom(periph); 1268 } 1269 1270 /* Called with periph lock held! */ 1271 static void 1272 sddastart(struct cam_periph *periph, union ccb *start_ccb) 1273 { 1274 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 1275 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1276 1277 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddastart\n")); 1278 1279 if (softc->state != SDDA_STATE_NORMAL) { 1280 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("device is not in SDDA_STATE_NORMAL yet")); 1281 xpt_release_ccb(start_ccb); 1282 return; 1283 } 1284 struct bio *bp; 1285 1286 /* Run regular command. */ 1287 bp = bioq_first(&softc->bio_queue); 1288 if (bp == NULL) { 1289 xpt_release_ccb(start_ccb); 1290 return; 1291 } 1292 bioq_remove(&softc->bio_queue, bp); 1293 1294 switch (bp->bio_cmd) { 1295 case BIO_WRITE: 1296 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_WRITE\n")); 1297 softc->flags |= SDDA_FLAG_DIRTY; 1298 /* FALLTHROUGH */ 1299 case BIO_READ: 1300 { 1301 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_READ\n")); 1302 uint64_t blockno = bp->bio_pblkno; 1303 uint16_t count = bp->bio_bcount / 512; 1304 uint16_t opcode; 1305 1306 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("Block %"PRIu64" cnt %u\n", blockno, count)); 1307 1308 /* Construct new MMC command */ 1309 if (bp->bio_cmd == BIO_READ) { 1310 if (count > 1) 1311 opcode = MMC_READ_MULTIPLE_BLOCK; 1312 else 1313 opcode = MMC_READ_SINGLE_BLOCK; 1314 } else { 1315 if (count > 1) 1316 opcode = MMC_WRITE_MULTIPLE_BLOCK; 1317 else 1318 opcode = MMC_WRITE_BLOCK; 1319 } 1320 1321 start_ccb->ccb_h.func_code = XPT_MMC_IO; 1322 start_ccb->ccb_h.flags = (bp->bio_cmd == BIO_READ ? CAM_DIR_IN : CAM_DIR_OUT); 1323 start_ccb->ccb_h.retry_count = 0; 1324 start_ccb->ccb_h.timeout = 15 * 1000; 1325 start_ccb->ccb_h.cbfcnp = sddadone; 1326 struct ccb_mmcio *mmcio; 1327 1328 mmcio = &start_ccb->mmcio; 1329 mmcio->cmd.opcode = opcode; 1330 mmcio->cmd.arg = blockno; 1331 if (!(mmcp->card_features & CARD_FEATURE_SDHC)) 1332 mmcio->cmd.arg <<= 9; 1333 1334 mmcio->cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; 1335 mmcio->cmd.data = softc->mmcdata; 1336 mmcio->cmd.data->data = bp->bio_data; 1337 mmcio->cmd.data->len = 512 * count; 1338 mmcio->cmd.data->flags = (bp->bio_cmd == BIO_READ ? MMC_DATA_READ : MMC_DATA_WRITE); 1339 /* Direct h/w to issue CMD12 upon completion */ 1340 if (count > 1) { 1341 mmcio->stop.opcode = MMC_STOP_TRANSMISSION; 1342 mmcio->stop.flags = MMC_RSP_R1B | MMC_CMD_AC; 1343 mmcio->stop.arg = 0; 1344 } 1345 1346 break; 1347 } 1348 case BIO_FLUSH: 1349 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_FLUSH\n")); 1350 sddaschedule(periph); 1351 break; 1352 case BIO_DELETE: 1353 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_DELETE\n")); 1354 sddaschedule(periph); 1355 break; 1356 } 1357 start_ccb->ccb_h.ccb_bp = bp; 1358 softc->outstanding_cmds++; 1359 softc->refcount++; 1360 cam_periph_unlock(periph); 1361 xpt_action(start_ccb); 1362 cam_periph_lock(periph); 1363 softc->refcount--; 1364 1365 /* May have more work to do, so ensure we stay scheduled */ 1366 sddaschedule(periph); 1367 } 1368 1369 static void 1370 sddadone(struct cam_periph *periph, union ccb *done_ccb) 1371 { 1372 struct sdda_softc *softc; 1373 struct ccb_mmcio *mmcio; 1374 // struct ccb_getdev *cgd; 1375 struct cam_path *path; 1376 // int state; 1377 1378 softc = (struct sdda_softc *)periph->softc; 1379 mmcio = &done_ccb->mmcio; 1380 path = done_ccb->ccb_h.path; 1381 1382 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("sddadone\n")); 1383 1384 struct bio *bp; 1385 int error = 0; 1386 1387 // cam_periph_lock(periph); 1388 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1389 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("Error!!!\n")); 1390 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1391 cam_release_devq(path, 1392 /*relsim_flags*/0, 1393 /*reduction*/0, 1394 /*timeout*/0, 1395 /*getcount_only*/0); 1396 error = 5; /* EIO */ 1397 } else { 1398 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1399 panic("REQ_CMP with QFRZN"); 1400 error = 0; 1401 } 1402 1403 1404 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1405 bp->bio_error = error; 1406 if (error != 0) { 1407 bp->bio_resid = bp->bio_bcount; 1408 bp->bio_flags |= BIO_ERROR; 1409 } else { 1410 /* XXX: How many bytes remaining? */ 1411 bp->bio_resid = 0; 1412 if (bp->bio_resid > 0) 1413 bp->bio_flags |= BIO_ERROR; 1414 } 1415 1416 uint32_t card_status = mmcio->cmd.resp[0]; 1417 CAM_DEBUG(path, CAM_DEBUG_TRACE, 1418 ("Card status: %08x\n", R1_STATUS(card_status))); 1419 CAM_DEBUG(path, CAM_DEBUG_TRACE, 1420 ("Current state: %d\n", R1_CURRENT_STATE(card_status))); 1421 1422 softc->outstanding_cmds--; 1423 xpt_release_ccb(done_ccb); 1424 biodone(bp); 1425 } 1426 1427 static int 1428 sddaerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1429 { 1430 return(cam_periph_error(ccb, cam_flags, sense_flags, NULL)); 1431 } 1432 #endif /* _KERNEL */ 1433