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, ("sddaopen\n")); 382 383 softc = (struct sdda_softc *)periph->softc; 384 softc->flags |= SDDA_FLAG_OPEN; 385 386 cam_periph_unhold(periph); 387 cam_periph_unlock(periph); 388 return (0); 389 } 390 391 static int 392 sddaclose(struct disk *dp) 393 { 394 struct cam_periph *periph; 395 struct sdda_softc *softc; 396 // union ccb *ccb; 397 // int error; 398 399 periph = (struct cam_periph *)dp->d_drv1; 400 softc = (struct sdda_softc *)periph->softc; 401 softc->flags &= ~SDDA_FLAG_OPEN; 402 403 cam_periph_lock(periph); 404 405 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddaclose\n")); 406 407 while (softc->refcount != 0) 408 cam_periph_sleep(periph, &softc->refcount, PRIBIO, "sddaclose", 1); 409 cam_periph_unlock(periph); 410 cam_periph_release(periph); 411 return (0); 412 } 413 414 static void 415 sddaschedule(struct cam_periph *periph) 416 { 417 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 418 419 /* Check if we have more work to do. */ 420 if (bioq_first(&softc->bio_queue)) { 421 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 422 } 423 } 424 425 /* 426 * Actually translate the requested transfer into one the physical driver 427 * can understand. The transfer is described by a buf and will include 428 * only one physical transfer. 429 */ 430 static void 431 sddastrategy(struct bio *bp) 432 { 433 struct cam_periph *periph; 434 struct sdda_softc *softc; 435 436 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 437 softc = (struct sdda_softc *)periph->softc; 438 439 cam_periph_lock(periph); 440 441 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddastrategy(%p)\n", bp)); 442 443 /* 444 * If the device has been made invalid, error out 445 */ 446 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 447 cam_periph_unlock(periph); 448 biofinish(bp, NULL, ENXIO); 449 return; 450 } 451 452 /* 453 * Place it in the queue of disk activities for this disk 454 */ 455 bioq_disksort(&softc->bio_queue, bp); 456 457 /* 458 * Schedule ourselves for performing the work. 459 */ 460 sddaschedule(periph); 461 cam_periph_unlock(periph); 462 463 return; 464 } 465 466 static void 467 sddainit(void) 468 { 469 cam_status status; 470 471 /* 472 * Install a global async callback. This callback will 473 * receive async callbacks like "new device found". 474 */ 475 status = xpt_register_async(AC_FOUND_DEVICE, sddaasync, NULL, NULL); 476 477 if (status != CAM_REQ_CMP) { 478 printf("sdda: Failed to attach master async callback " 479 "due to status 0x%x!\n", status); 480 } 481 } 482 483 /* 484 * Callback from GEOM, called when it has finished cleaning up its 485 * resources. 486 */ 487 static void 488 sddadiskgonecb(struct disk *dp) 489 { 490 struct cam_periph *periph; 491 492 periph = (struct cam_periph *)dp->d_drv1; 493 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddadiskgonecb\n")); 494 495 cam_periph_release(periph); 496 } 497 498 static void 499 sddaoninvalidate(struct cam_periph *periph) 500 { 501 struct sdda_softc *softc; 502 503 softc = (struct sdda_softc *)periph->softc; 504 505 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddaoninvalidate\n")); 506 507 /* 508 * De-register any async callbacks. 509 */ 510 xpt_register_async(0, sddaasync, periph, periph->path); 511 512 /* 513 * Return all queued I/O with ENXIO. 514 * XXX Handle any transactions queued to the card 515 * with XPT_ABORT_CCB. 516 */ 517 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("bioq_flush start\n")); 518 bioq_flush(&softc->bio_queue, NULL, ENXIO); 519 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("bioq_flush end\n")); 520 521 disk_gone(softc->disk); 522 } 523 524 static void 525 sddacleanup(struct cam_periph *periph) 526 { 527 struct sdda_softc *softc; 528 529 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddacleanup\n")); 530 softc = (struct sdda_softc *)periph->softc; 531 532 cam_periph_unlock(periph); 533 534 disk_destroy(softc->disk); 535 free(softc, M_DEVBUF); 536 cam_periph_lock(periph); 537 } 538 539 static void 540 sddaasync(void *callback_arg, u_int32_t code, 541 struct cam_path *path, void *arg) 542 { 543 struct ccb_getdev cgd; 544 struct cam_periph *periph; 545 struct sdda_softc *softc; 546 547 periph = (struct cam_periph *)callback_arg; 548 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("sddaasync(code=%d)\n", code)); 549 switch (code) { 550 case AC_FOUND_DEVICE: 551 { 552 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("=> AC_FOUND_DEVICE\n")); 553 struct ccb_getdev *cgd; 554 cam_status status; 555 556 cgd = (struct ccb_getdev *)arg; 557 if (cgd == NULL) 558 break; 559 560 if (cgd->protocol != PROTO_MMCSD) 561 break; 562 563 if (!(path->device->mmc_ident_data.card_features & CARD_FEATURE_MEMORY)) { 564 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("No memory on the card!\n")); 565 break; 566 } 567 568 /* 569 * Allocate a peripheral instance for 570 * this device and start the probe 571 * process. 572 */ 573 status = cam_periph_alloc(sddaregister, sddaoninvalidate, 574 sddacleanup, sddastart, 575 "sdda", CAM_PERIPH_BIO, 576 path, sddaasync, 577 AC_FOUND_DEVICE, cgd); 578 579 if (status != CAM_REQ_CMP 580 && status != CAM_REQ_INPROG) 581 printf("sddaasync: Unable to attach to new device " 582 "due to status 0x%x\n", status); 583 break; 584 } 585 case AC_GETDEV_CHANGED: 586 { 587 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("=> AC_GETDEV_CHANGED\n")); 588 softc = (struct sdda_softc *)periph->softc; 589 xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 590 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 591 xpt_action((union ccb *)&cgd); 592 cam_periph_async(periph, code, path, arg); 593 break; 594 } 595 case AC_ADVINFO_CHANGED: 596 { 597 uintptr_t buftype; 598 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("=> AC_ADVINFO_CHANGED\n")); 599 buftype = (uintptr_t)arg; 600 if (buftype == CDAI_TYPE_PHYS_PATH) { 601 struct sdda_softc *softc; 602 603 softc = periph->softc; 604 disk_attr_changed(softc->disk, "GEOM::physpath", 605 M_NOWAIT); 606 } 607 break; 608 } 609 case AC_SENT_BDR: 610 case AC_BUS_RESET: 611 { 612 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("AC_BUS_RESET")); 613 } 614 default: 615 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("=> default?!\n")); 616 cam_periph_async(periph, code, path, arg); 617 break; 618 } 619 } 620 621 622 static int 623 sddagetattr(struct bio *bp) 624 { 625 int ret; 626 struct cam_periph *periph; 627 628 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 629 cam_periph_lock(periph); 630 ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute, 631 periph->path); 632 cam_periph_unlock(periph); 633 if (ret == 0) 634 bp->bio_completed = bp->bio_length; 635 return ret; 636 } 637 638 static cam_status 639 sddaregister(struct cam_periph *periph, void *arg) 640 { 641 struct sdda_softc *softc; 642 // struct ccb_pathinq cpi; 643 struct ccb_getdev *cgd; 644 // char announce_buf[80], buf1[32]; 645 // caddr_t match; 646 union ccb *request_ccb; /* CCB representing the probe request */ 647 648 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddaregister\n")); 649 cgd = (struct ccb_getdev *)arg; 650 if (cgd == NULL) { 651 printf("sddaregister: no getdev CCB, can't register device\n"); 652 return(CAM_REQ_CMP_ERR); 653 } 654 655 softc = (struct sdda_softc *)malloc(sizeof(*softc), M_DEVBUF, 656 M_NOWAIT|M_ZERO); 657 658 if (softc == NULL) { 659 printf("sddaregister: Unable to probe new device. " 660 "Unable to allocate softc\n"); 661 return(CAM_REQ_CMP_ERR); 662 } 663 664 bioq_init(&softc->bio_queue); 665 softc->state = SDDA_STATE_INIT; 666 softc->mmcdata = 667 (struct mmc_data *) malloc(sizeof(struct mmc_data), M_DEVBUF, M_NOWAIT|M_ZERO); 668 periph->softc = softc; 669 670 request_ccb = (union ccb*) arg; 671 xpt_schedule(periph, CAM_PRIORITY_XPT); 672 TASK_INIT(&softc->start_init_task, 0, sdda_start_init_task, periph); 673 taskqueue_enqueue(taskqueue_thread, &softc->start_init_task); 674 675 return (CAM_REQ_CMP); 676 } 677 678 static cam_status 679 sdda_hook_into_geom(struct cam_periph *periph) 680 { 681 struct sdda_softc *softc; 682 struct ccb_pathinq cpi; 683 struct ccb_getdev cgd; 684 u_int maxio; 685 686 softc = (struct sdda_softc*) periph->softc; 687 688 xpt_path_inq(&cpi, periph->path); 689 690 bzero(&cgd, sizeof(cgd)); 691 xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NONE); 692 cpi.ccb_h.func_code = XPT_GDEV_TYPE; 693 xpt_action((union ccb *)&cgd); 694 695 /* 696 * Register this media as a disk 697 */ 698 (void)cam_periph_hold(periph, PRIBIO); 699 cam_periph_unlock(periph); 700 701 softc->disk = disk_alloc(); 702 softc->disk->d_rotation_rate = 0; 703 softc->disk->d_devstat = devstat_new_entry(periph->periph_name, 704 periph->unit_number, 512, 705 DEVSTAT_ALL_SUPPORTED, 706 DEVSTAT_TYPE_DIRECT | 707 XPORT_DEVSTAT_TYPE(cpi.transport), 708 DEVSTAT_PRIORITY_DISK); 709 softc->disk->d_open = sddaopen; 710 softc->disk->d_close = sddaclose; 711 softc->disk->d_strategy = sddastrategy; 712 softc->disk->d_getattr = sddagetattr; 713 // softc->disk->d_dump = sddadump; 714 softc->disk->d_gone = sddadiskgonecb; 715 softc->disk->d_name = "sdda"; 716 softc->disk->d_drv1 = periph; 717 maxio = cpi.maxio; /* Honor max I/O size of SIM */ 718 if (maxio == 0) 719 maxio = DFLTPHYS; /* traditional default */ 720 else if (maxio > MAXPHYS) 721 maxio = MAXPHYS; /* for safety */ 722 softc->disk->d_maxsize = maxio; 723 softc->disk->d_unit = periph->unit_number; 724 softc->disk->d_flags = DISKFLAG_CANDELETE; 725 strlcpy(softc->disk->d_descr, softc->card_id_string, 726 MIN(sizeof(softc->disk->d_descr), sizeof(softc->card_id_string))); 727 strlcpy(softc->disk->d_ident, softc->card_sn_string, 728 MIN(sizeof(softc->disk->d_ident), sizeof(softc->card_sn_string))); 729 softc->disk->d_hba_vendor = cpi.hba_vendor; 730 softc->disk->d_hba_device = cpi.hba_device; 731 softc->disk->d_hba_subvendor = cpi.hba_subvendor; 732 softc->disk->d_hba_subdevice = cpi.hba_subdevice; 733 734 softc->disk->d_sectorsize = 512; 735 softc->disk->d_mediasize = softc->mediasize; 736 softc->disk->d_stripesize = 0; 737 softc->disk->d_fwsectors = 0; 738 softc->disk->d_fwheads = 0; 739 740 /* 741 * Acquire a reference to the periph before we register with GEOM. 742 * We'll release this reference once GEOM calls us back (via 743 * sddadiskgonecb()) telling us that our provider has been freed. 744 */ 745 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 746 xpt_print(periph->path, "%s: lost periph during " 747 "registration!\n", __func__); 748 cam_periph_lock(periph); 749 return (CAM_REQ_CMP_ERR); 750 } 751 disk_create(softc->disk, DISK_VERSION); 752 cam_periph_lock(periph); 753 cam_periph_unhold(periph); 754 755 xpt_announce_periph(periph, softc->card_id_string); 756 757 /* 758 * Add async callbacks for bus reset and 759 * bus device reset calls. I don't bother 760 * checking if this fails as, in most cases, 761 * the system will function just fine without 762 * them and the only alternative would be to 763 * not attach the device on failure. 764 */ 765 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE | 766 AC_GETDEV_CHANGED | AC_ADVINFO_CHANGED, 767 sddaasync, periph, periph->path); 768 769 return(CAM_REQ_CMP); 770 } 771 772 static int 773 mmc_exec_app_cmd(struct cam_periph *periph, union ccb *ccb, 774 struct mmc_command *cmd) { 775 int err; 776 777 /* Send APP_CMD first */ 778 memset(&ccb->mmcio.cmd, 0, sizeof(struct mmc_command)); 779 memset(&ccb->mmcio.stop, 0, sizeof(struct mmc_command)); 780 cam_fill_mmcio(&ccb->mmcio, 781 /*retries*/ 0, 782 /*cbfcnp*/ NULL, 783 /*flags*/ CAM_DIR_NONE, 784 /*mmc_opcode*/ MMC_APP_CMD, 785 /*mmc_arg*/ get_rca(periph) << 16, 786 /*mmc_flags*/ MMC_RSP_R1 | MMC_CMD_AC, 787 /*mmc_data*/ NULL, 788 /*timeout*/ 0); 789 790 err = cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 791 if (err != 0) 792 return err; 793 if (!(ccb->mmcio.cmd.resp[0] & R1_APP_CMD)) 794 return MMC_ERR_FAILED; 795 796 /* Now exec actual command */ 797 int flags = 0; 798 if (cmd->data != NULL) { 799 ccb->mmcio.cmd.data = cmd->data; 800 if (cmd->data->flags & MMC_DATA_READ) 801 flags |= CAM_DIR_IN; 802 if (cmd->data->flags & MMC_DATA_WRITE) 803 flags |= CAM_DIR_OUT; 804 } else flags = CAM_DIR_NONE; 805 806 cam_fill_mmcio(&ccb->mmcio, 807 /*retries*/ 0, 808 /*cbfcnp*/ NULL, 809 /*flags*/ flags, 810 /*mmc_opcode*/ cmd->opcode, 811 /*mmc_arg*/ cmd->arg, 812 /*mmc_flags*/ cmd->flags, 813 /*mmc_data*/ cmd->data, 814 /*timeout*/ 0); 815 816 err = cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 817 memcpy(cmd->resp, ccb->mmcio.cmd.resp, sizeof(cmd->resp)); 818 cmd->error = ccb->mmcio.cmd.error; 819 if (err != 0) 820 return err; 821 return 0; 822 } 823 824 static int 825 mmc_app_get_scr(struct cam_periph *periph, union ccb *ccb, uint32_t *rawscr) { 826 int err; 827 struct mmc_command cmd; 828 struct mmc_data d; 829 830 memset(&cmd, 0, sizeof(cmd)); 831 832 memset(rawscr, 0, 8); 833 cmd.opcode = ACMD_SEND_SCR; 834 cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; 835 cmd.arg = 0; 836 837 d.data = rawscr; 838 d.len = 8; 839 d.flags = MMC_DATA_READ; 840 cmd.data = &d; 841 842 err = mmc_exec_app_cmd(periph, ccb, &cmd); 843 rawscr[0] = be32toh(rawscr[0]); 844 rawscr[1] = be32toh(rawscr[1]); 845 return (err); 846 } 847 848 static int 849 mmc_send_ext_csd(struct cam_periph *periph, union ccb *ccb, 850 uint8_t *rawextcsd, size_t buf_len) { 851 int err; 852 struct mmc_data d; 853 854 KASSERT(buf_len == 512, ("Buffer for ext csd must be 512 bytes")); 855 d.data = rawextcsd; 856 d.len = buf_len; 857 d.flags = MMC_DATA_READ; 858 memset(d.data, 0, d.len); 859 860 cam_fill_mmcio(&ccb->mmcio, 861 /*retries*/ 0, 862 /*cbfcnp*/ NULL, 863 /*flags*/ CAM_DIR_IN, 864 /*mmc_opcode*/ MMC_SEND_EXT_CSD, 865 /*mmc_arg*/ 0, 866 /*mmc_flags*/ MMC_RSP_R1 | MMC_CMD_ADTC, 867 /*mmc_data*/ &d, 868 /*timeout*/ 0); 869 870 err = cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 871 if (err != 0) 872 return err; 873 if (!(ccb->mmcio.cmd.resp[0] & R1_APP_CMD)) 874 return MMC_ERR_FAILED; 875 876 return MMC_ERR_NONE; 877 } 878 879 static void 880 mmc_app_decode_scr(uint32_t *raw_scr, struct mmc_scr *scr) 881 { 882 unsigned int scr_struct; 883 884 memset(scr, 0, sizeof(*scr)); 885 886 scr_struct = mmc_get_bits(raw_scr, 64, 60, 4); 887 if (scr_struct != 0) { 888 printf("Unrecognised SCR structure version %d\n", 889 scr_struct); 890 return; 891 } 892 scr->sda_vsn = mmc_get_bits(raw_scr, 64, 56, 4); 893 scr->bus_widths = mmc_get_bits(raw_scr, 64, 48, 4); 894 } 895 896 static int 897 mmc_switch(struct cam_periph *periph, union ccb *ccb, 898 uint8_t set, uint8_t index, uint8_t value) 899 { 900 int arg = (MMC_SWITCH_FUNC_WR << 24) | 901 (index << 16) | 902 (value << 8) | 903 set; 904 cam_fill_mmcio(&ccb->mmcio, 905 /*retries*/ 0, 906 /*cbfcnp*/ NULL, 907 /*flags*/ CAM_DIR_NONE, 908 /*mmc_opcode*/ MMC_SWITCH_FUNC, 909 /*mmc_arg*/ arg, 910 /*mmc_flags*/ MMC_RSP_R1B | MMC_CMD_AC, 911 /*mmc_data*/ NULL, 912 /*timeout*/ 0); 913 914 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 915 916 if (((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP)) { 917 if (ccb->mmcio.cmd.error != 0) { 918 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_PERIPH, 919 ("%s: MMC command failed", __func__)); 920 return EIO; 921 } 922 return 0; /* Normal return */ 923 } else { 924 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_PERIPH, 925 ("%s: CAM request failed\n", __func__)); 926 return EIO; 927 } 928 929 } 930 931 static int 932 mmc_sd_switch(struct cam_periph *periph, union ccb *ccb, 933 uint8_t mode, uint8_t grp, uint8_t value, 934 uint8_t *res) { 935 936 struct mmc_data mmc_d; 937 938 memset(res, 0, 64); 939 mmc_d.len = 64; 940 mmc_d.data = res; 941 mmc_d.flags = MMC_DATA_READ; 942 943 cam_fill_mmcio(&ccb->mmcio, 944 /*retries*/ 0, 945 /*cbfcnp*/ NULL, 946 /*flags*/ CAM_DIR_IN, 947 /*mmc_opcode*/ SD_SWITCH_FUNC, 948 /*mmc_arg*/ mode << 31, 949 /*mmc_flags*/ MMC_RSP_R1 | MMC_CMD_ADTC, 950 /*mmc_data*/ &mmc_d, 951 /*timeout*/ 0); 952 953 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 954 955 if (((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP)) { 956 if (ccb->mmcio.cmd.error != 0) { 957 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_PERIPH, 958 ("%s: MMC command failed", __func__)); 959 return EIO; 960 } 961 return 0; /* Normal return */ 962 } else { 963 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_PERIPH, 964 ("%s: CAM request failed\n", __func__)); 965 return EIO; 966 } 967 } 968 969 static int 970 mmc_set_timing(struct cam_periph *periph, 971 union ccb *ccb, 972 enum mmc_bus_timing timing) 973 { 974 u_char switch_res[64]; 975 int err; 976 uint8_t value; 977 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 978 979 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, 980 ("mmc_set_timing(timing=%d)", timing)); 981 switch (timing) { 982 case bus_timing_normal: 983 value = 0; 984 break; 985 case bus_timing_hs: 986 value = 1; 987 break; 988 default: 989 return (MMC_ERR_INVALID); 990 } 991 if (mmcp->card_features & CARD_FEATURE_MMC) { 992 err = mmc_switch(periph, ccb, EXT_CSD_CMD_SET_NORMAL, 993 EXT_CSD_HS_TIMING, value); 994 } else { 995 err = mmc_sd_switch(periph, ccb, SD_SWITCH_MODE_SET, SD_SWITCH_GROUP1, value, switch_res); 996 } 997 998 /* Set high-speed timing on the host */ 999 struct ccb_trans_settings_mmc *cts; 1000 cts = &ccb->cts.proto_specific.mmc; 1001 ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1002 ccb->ccb_h.flags = CAM_DIR_NONE; 1003 ccb->ccb_h.retry_count = 0; 1004 ccb->ccb_h.timeout = 100; 1005 ccb->ccb_h.cbfcnp = NULL; 1006 cts->ios.timing = timing; 1007 cts->ios_valid = MMC_BT; 1008 xpt_action(ccb); 1009 1010 return (err); 1011 } 1012 1013 static void 1014 sdda_start_init_task(void *context, int pending) { 1015 union ccb *new_ccb; 1016 struct cam_periph *periph; 1017 1018 periph = (struct cam_periph *)context; 1019 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sdda_start_init_task\n")); 1020 new_ccb = xpt_alloc_ccb(); 1021 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, 1022 CAM_PRIORITY_NONE); 1023 1024 cam_periph_lock(periph); 1025 sdda_start_init(context, new_ccb); 1026 cam_periph_unlock(periph); 1027 xpt_free_ccb(new_ccb); 1028 } 1029 1030 static void 1031 sdda_set_bus_width(struct cam_periph *periph, union ccb *ccb, int width) { 1032 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1033 int err; 1034 1035 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sdda_set_bus_width\n")); 1036 1037 /* First set for the card, then for the host */ 1038 if (mmcp->card_features & CARD_FEATURE_MMC) { 1039 uint8_t value; 1040 switch (width) { 1041 case bus_width_1: 1042 value = EXT_CSD_BUS_WIDTH_1; 1043 break; 1044 case bus_width_4: 1045 value = EXT_CSD_BUS_WIDTH_4; 1046 break; 1047 case bus_width_8: 1048 value = EXT_CSD_BUS_WIDTH_8; 1049 break; 1050 default: 1051 panic("Invalid bus width %d", width); 1052 } 1053 err = mmc_switch(periph, ccb, EXT_CSD_CMD_SET_NORMAL, 1054 EXT_CSD_BUS_WIDTH, value); 1055 } else { 1056 /* For SD cards we send ACMD6 with the required bus width in arg */ 1057 struct mmc_command cmd; 1058 memset(&cmd, 0, sizeof(struct mmc_command)); 1059 cmd.opcode = ACMD_SET_BUS_WIDTH; 1060 cmd.arg = width; 1061 cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 1062 err = mmc_exec_app_cmd(periph, ccb, &cmd); 1063 } 1064 1065 if (err != MMC_ERR_NONE) { 1066 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Error %d when setting bus width on the card\n", err)); 1067 return; 1068 } 1069 /* Now card is done, set the host to the same width */ 1070 struct ccb_trans_settings_mmc *cts; 1071 cts = &ccb->cts.proto_specific.mmc; 1072 ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1073 ccb->ccb_h.flags = CAM_DIR_NONE; 1074 ccb->ccb_h.retry_count = 0; 1075 ccb->ccb_h.timeout = 100; 1076 ccb->ccb_h.cbfcnp = NULL; 1077 cts->ios.bus_width = width; 1078 cts->ios_valid = MMC_BW; 1079 xpt_action(ccb); 1080 } 1081 1082 static inline const char *bus_width_str(enum mmc_bus_width w) { 1083 switch (w) { 1084 case bus_width_1: 1085 return "1-bit"; 1086 case bus_width_4: 1087 return "4-bit"; 1088 case bus_width_8: 1089 return "8-bit"; 1090 } 1091 } 1092 1093 static void 1094 sdda_start_init(void *context, union ccb *start_ccb) { 1095 struct cam_periph *periph; 1096 periph = (struct cam_periph *)context; 1097 int err; 1098 1099 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sdda_start_init\n")); 1100 /* periph was held for us when this task was enqueued */ 1101 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 1102 cam_periph_release(periph); 1103 return; 1104 } 1105 1106 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 1107 //struct ccb_mmcio *mmcio = &start_ccb->mmcio; 1108 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1109 struct cam_ed *device = periph->path->device; 1110 1111 if (mmcp->card_features & CARD_FEATURE_MMC) { 1112 mmc_decode_csd_mmc(mmcp->card_csd, &softc->csd); 1113 mmc_decode_cid_mmc(mmcp->card_cid, &softc->cid); 1114 if (softc->csd.spec_vers >= 4) 1115 err = mmc_send_ext_csd(periph, start_ccb, 1116 (uint8_t *)&softc->raw_ext_csd, 1117 sizeof(softc->raw_ext_csd)); 1118 } else { 1119 mmc_decode_csd_sd(mmcp->card_csd, &softc->csd); 1120 mmc_decode_cid_sd(mmcp->card_cid, &softc->cid); 1121 } 1122 1123 softc->sector_count = softc->csd.capacity / 512; 1124 softc->mediasize = softc->csd.capacity; 1125 1126 /* MMC >= 4.x have EXT_CSD that has its own opinion about capacity */ 1127 if (softc->csd.spec_vers >= 4) { 1128 uint32_t sec_count = softc->raw_ext_csd[EXT_CSD_SEC_CNT] + 1129 (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 1] << 8) + 1130 (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 2] << 16) + 1131 (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 3] << 24); 1132 if (sec_count != 0) { 1133 softc->sector_count = sec_count; 1134 softc->mediasize = softc->sector_count * 512; 1135 /* FIXME: there should be a better name for this option...*/ 1136 mmcp->card_features |= CARD_FEATURE_SDHC; 1137 } 1138 1139 } 1140 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1141 ("Capacity: %"PRIu64", sectors: %"PRIu64"\n", 1142 softc->mediasize, 1143 softc->sector_count)); 1144 mmc_format_card_id_string(softc, mmcp); 1145 1146 /* Update info for CAM */ 1147 device->serial_num_len = strlen(softc->card_sn_string); 1148 device->serial_num = 1149 (u_int8_t *)malloc((device->serial_num_len + 1), 1150 M_CAMXPT, M_NOWAIT); 1151 strlcpy(device->serial_num, softc->card_sn_string, device->serial_num_len); 1152 1153 device->device_id_len = strlen(softc->card_id_string); 1154 device->device_id = 1155 (u_int8_t *)malloc((device->device_id_len + 1), 1156 M_CAMXPT, M_NOWAIT); 1157 strlcpy(device->device_id, softc->card_id_string, device->device_id_len); 1158 1159 strlcpy(mmcp->model, softc->card_id_string, sizeof(mmcp->model)); 1160 1161 /* Set the clock frequency that the card can handle */ 1162 struct ccb_trans_settings_mmc *cts; 1163 cts = &start_ccb->cts.proto_specific.mmc; 1164 1165 /* First, get the host's max freq */ 1166 start_ccb->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1167 start_ccb->ccb_h.flags = CAM_DIR_NONE; 1168 start_ccb->ccb_h.retry_count = 0; 1169 start_ccb->ccb_h.timeout = 100; 1170 start_ccb->ccb_h.cbfcnp = NULL; 1171 xpt_action(start_ccb); 1172 1173 if (start_ccb->ccb_h.status != CAM_REQ_CMP) 1174 panic("Cannot get max host freq"); 1175 int host_f_max = cts->host_f_max; 1176 uint32_t host_caps = cts->host_caps; 1177 if (cts->ios.bus_width != bus_width_1) 1178 panic("Bus width in ios is not 1-bit"); 1179 1180 /* Now check if the card supports High-speed */ 1181 softc->card_f_max = softc->csd.tran_speed; 1182 1183 if (host_caps & MMC_CAP_HSPEED) { 1184 /* Find out if the card supports High speed timing */ 1185 if (mmcp->card_features & CARD_FEATURE_SD20) { 1186 /* Get and decode SCR */ 1187 uint32_t rawscr; 1188 uint8_t res[64]; 1189 if (mmc_app_get_scr(periph, start_ccb, &rawscr)) { 1190 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Cannot get SCR\n")); 1191 goto finish_hs_tests; 1192 } 1193 mmc_app_decode_scr(&rawscr, &softc->scr); 1194 1195 if ((softc->scr.sda_vsn >= 1) && (softc->csd.ccc & (1<<10))) { 1196 mmc_sd_switch(periph, start_ccb, SD_SWITCH_MODE_CHECK, 1197 SD_SWITCH_GROUP1, SD_SWITCH_NOCHANGE, res); 1198 if (res[13] & 2) { 1199 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Card supports HS\n")); 1200 softc->card_f_max = SD_HS_MAX; 1201 } 1202 } else { 1203 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Not trying the switch\n")); 1204 goto finish_hs_tests; 1205 } 1206 } 1207 1208 if (mmcp->card_features & CARD_FEATURE_MMC && softc->csd.spec_vers >= 4) { 1209 if (softc->raw_ext_csd[EXT_CSD_CARD_TYPE] 1210 & EXT_CSD_CARD_TYPE_HS_52) 1211 softc->card_f_max = MMC_TYPE_HS_52_MAX; 1212 else if (softc->raw_ext_csd[EXT_CSD_CARD_TYPE] 1213 & EXT_CSD_CARD_TYPE_HS_26) 1214 softc->card_f_max = MMC_TYPE_HS_26_MAX; 1215 } 1216 } 1217 int f_max; 1218 finish_hs_tests: 1219 f_max = min(host_f_max, softc->card_f_max); 1220 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)); 1221 1222 start_ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1223 start_ccb->ccb_h.flags = CAM_DIR_NONE; 1224 start_ccb->ccb_h.retry_count = 0; 1225 start_ccb->ccb_h.timeout = 100; 1226 start_ccb->ccb_h.cbfcnp = NULL; 1227 cts->ios.clock = f_max; 1228 cts->ios_valid = MMC_CLK; 1229 xpt_action(start_ccb); 1230 1231 /* Set bus width */ 1232 enum mmc_bus_width desired_bus_width = bus_width_1; 1233 enum mmc_bus_width max_host_bus_width = 1234 (host_caps & MMC_CAP_8_BIT_DATA ? bus_width_8 : 1235 host_caps & MMC_CAP_4_BIT_DATA ? bus_width_4 : bus_width_1); 1236 enum mmc_bus_width max_card_bus_width = bus_width_1; 1237 if (mmcp->card_features & CARD_FEATURE_SD20 && 1238 softc->scr.bus_widths & SD_SCR_BUS_WIDTH_4) 1239 max_card_bus_width = bus_width_4; 1240 /* 1241 * Unlike SD, MMC cards don't have any information about supported bus width... 1242 * So we need to perform read/write test to find out the width. 1243 */ 1244 /* TODO: figure out bus width for MMC; use 8-bit for now (to test on BBB) */ 1245 if (mmcp->card_features & CARD_FEATURE_MMC) 1246 max_card_bus_width = bus_width_8; 1247 1248 desired_bus_width = min(max_host_bus_width, max_card_bus_width); 1249 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1250 ("Set bus width to %s (min of host %s and card %s)\n", 1251 bus_width_str(desired_bus_width), 1252 bus_width_str(max_host_bus_width), 1253 bus_width_str(max_card_bus_width))); 1254 sdda_set_bus_width(periph, start_ccb, desired_bus_width); 1255 1256 if (f_max > 25000000) { 1257 err = mmc_set_timing(periph, start_ccb, bus_timing_hs); 1258 if (err != MMC_ERR_NONE) 1259 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("Cannot switch card to high-speed mode")); 1260 } 1261 softc->state = SDDA_STATE_NORMAL; 1262 sdda_hook_into_geom(periph); 1263 } 1264 1265 /* Called with periph lock held! */ 1266 static void 1267 sddastart(struct cam_periph *periph, union ccb *start_ccb) 1268 { 1269 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 1270 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1271 1272 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddastart\n")); 1273 1274 if (softc->state != SDDA_STATE_NORMAL) { 1275 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("device is not in SDDA_STATE_NORMAL yet")); 1276 xpt_release_ccb(start_ccb); 1277 return; 1278 } 1279 struct bio *bp; 1280 1281 /* Run regular command. */ 1282 bp = bioq_first(&softc->bio_queue); 1283 if (bp == NULL) { 1284 xpt_release_ccb(start_ccb); 1285 return; 1286 } 1287 bioq_remove(&softc->bio_queue, bp); 1288 1289 switch (bp->bio_cmd) { 1290 case BIO_WRITE: 1291 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_WRITE\n")); 1292 softc->flags |= SDDA_FLAG_DIRTY; 1293 /* FALLTHROUGH */ 1294 case BIO_READ: 1295 { 1296 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_READ\n")); 1297 uint64_t blockno = bp->bio_pblkno; 1298 uint16_t count = bp->bio_bcount / 512; 1299 uint16_t opcode; 1300 1301 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("Block %"PRIu64" cnt %u\n", blockno, count)); 1302 1303 /* Construct new MMC command */ 1304 if (bp->bio_cmd == BIO_READ) { 1305 if (count > 1) 1306 opcode = MMC_READ_MULTIPLE_BLOCK; 1307 else 1308 opcode = MMC_READ_SINGLE_BLOCK; 1309 } else { 1310 if (count > 1) 1311 opcode = MMC_WRITE_MULTIPLE_BLOCK; 1312 else 1313 opcode = MMC_WRITE_BLOCK; 1314 } 1315 1316 start_ccb->ccb_h.func_code = XPT_MMC_IO; 1317 start_ccb->ccb_h.flags = (bp->bio_cmd == BIO_READ ? CAM_DIR_IN : CAM_DIR_OUT); 1318 start_ccb->ccb_h.retry_count = 0; 1319 start_ccb->ccb_h.timeout = 15 * 1000; 1320 start_ccb->ccb_h.cbfcnp = sddadone; 1321 struct ccb_mmcio *mmcio; 1322 1323 mmcio = &start_ccb->mmcio; 1324 mmcio->cmd.opcode = opcode; 1325 mmcio->cmd.arg = blockno; 1326 if (!(mmcp->card_features & CARD_FEATURE_SDHC)) 1327 mmcio->cmd.arg <<= 9; 1328 1329 mmcio->cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; 1330 mmcio->cmd.data = softc->mmcdata; 1331 mmcio->cmd.data->data = bp->bio_data; 1332 mmcio->cmd.data->len = 512 * count; 1333 mmcio->cmd.data->flags = (bp->bio_cmd == BIO_READ ? MMC_DATA_READ : MMC_DATA_WRITE); 1334 /* Direct h/w to issue CMD12 upon completion */ 1335 if (count > 1) { 1336 mmcio->stop.opcode = MMC_STOP_TRANSMISSION; 1337 mmcio->stop.flags = MMC_RSP_R1B | MMC_CMD_AC; 1338 mmcio->stop.arg = 0; 1339 } 1340 1341 break; 1342 } 1343 case BIO_FLUSH: 1344 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_FLUSH\n")); 1345 sddaschedule(periph); 1346 break; 1347 case BIO_DELETE: 1348 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_DELETE\n")); 1349 sddaschedule(periph); 1350 break; 1351 } 1352 start_ccb->ccb_h.ccb_bp = bp; 1353 softc->outstanding_cmds++; 1354 softc->refcount++; 1355 cam_periph_unlock(periph); 1356 xpt_action(start_ccb); 1357 cam_periph_lock(periph); 1358 softc->refcount--; 1359 1360 /* May have more work to do, so ensure we stay scheduled */ 1361 sddaschedule(periph); 1362 } 1363 1364 static void 1365 sddadone(struct cam_periph *periph, union ccb *done_ccb) 1366 { 1367 struct sdda_softc *softc; 1368 struct ccb_mmcio *mmcio; 1369 // struct ccb_getdev *cgd; 1370 struct cam_path *path; 1371 // int state; 1372 1373 softc = (struct sdda_softc *)periph->softc; 1374 mmcio = &done_ccb->mmcio; 1375 path = done_ccb->ccb_h.path; 1376 1377 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("sddadone\n")); 1378 1379 struct bio *bp; 1380 int error = 0; 1381 1382 // cam_periph_lock(periph); 1383 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1384 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("Error!!!\n")); 1385 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1386 cam_release_devq(path, 1387 /*relsim_flags*/0, 1388 /*reduction*/0, 1389 /*timeout*/0, 1390 /*getcount_only*/0); 1391 error = 5; /* EIO */ 1392 } else { 1393 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1394 panic("REQ_CMP with QFRZN"); 1395 error = 0; 1396 } 1397 1398 1399 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1400 bp->bio_error = error; 1401 if (error != 0) { 1402 bp->bio_resid = bp->bio_bcount; 1403 bp->bio_flags |= BIO_ERROR; 1404 } else { 1405 /* XXX: How many bytes remaining? */ 1406 bp->bio_resid = 0; 1407 if (bp->bio_resid > 0) 1408 bp->bio_flags |= BIO_ERROR; 1409 } 1410 1411 uint32_t card_status = mmcio->cmd.resp[0]; 1412 CAM_DEBUG(path, CAM_DEBUG_TRACE, 1413 ("Card status: %08x\n", R1_STATUS(card_status))); 1414 CAM_DEBUG(path, CAM_DEBUG_TRACE, 1415 ("Current state: %d\n", R1_CURRENT_STATE(card_status))); 1416 1417 softc->outstanding_cmds--; 1418 xpt_release_ccb(done_ccb); 1419 biodone(bp); 1420 } 1421 1422 static int 1423 sddaerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1424 { 1425 return(cam_periph_error(ccb, cam_flags, sense_flags)); 1426 } 1427 #endif /* _KERNEL */ 1428