1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2006 Bernd Walter <tisco@FreeBSD.org> 5 * Copyright (c) 2006 M. Warner Losh <imp@FreeBSD.org> 6 * Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org> 7 * Copyright (c) 2015-2017 Ilya Bakulin <kibab@FreeBSD.org> 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer, 15 * without modification, immediately at the beginning of the file. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * Some code derived from the sys/dev/mmc and sys/cam/ata 32 * Thanks to Warner Losh <imp@FreeBSD.org>, Alexander Motin <mav@FreeBSD.org> 33 * Bernd Walter <tisco@FreeBSD.org>, and other authors. 34 */ 35 36 #include <sys/cdefs.h> 37 __FBSDID("$FreeBSD$"); 38 39 //#include "opt_sdda.h" 40 41 #include <sys/param.h> 42 43 #ifdef _KERNEL 44 #include <sys/systm.h> 45 #include <sys/kernel.h> 46 #include <sys/bio.h> 47 #include <sys/endian.h> 48 #include <sys/taskqueue.h> 49 #include <sys/lock.h> 50 #include <sys/mutex.h> 51 #include <sys/conf.h> 52 #include <sys/devicestat.h> 53 #include <sys/eventhandler.h> 54 #include <sys/malloc.h> 55 #include <sys/cons.h> 56 #include <sys/proc.h> 57 #include <sys/reboot.h> 58 #include <geom/geom_disk.h> 59 #include <machine/_inttypes.h> /* for PRIu64 */ 60 #endif /* _KERNEL */ 61 62 #ifndef _KERNEL 63 #include <stdio.h> 64 #include <string.h> 65 #endif /* _KERNEL */ 66 67 #include <cam/cam.h> 68 #include <cam/cam_ccb.h> 69 #include <cam/cam_queue.h> 70 #include <cam/cam_periph.h> 71 #include <cam/cam_sim.h> 72 #include <cam/cam_xpt.h> 73 #include <cam/cam_xpt_sim.h> 74 #include <cam/cam_xpt_periph.h> 75 #include <cam/cam_xpt_internal.h> 76 #include <cam/cam_debug.h> 77 78 79 #include <cam/mmc/mmc_all.h> 80 81 #include <machine/md_var.h> /* geometry translation */ 82 83 #ifdef _KERNEL 84 85 typedef enum { 86 SDDA_FLAG_OPEN = 0x0002, 87 SDDA_FLAG_DIRTY = 0x0004 88 } sdda_flags; 89 90 typedef enum { 91 SDDA_STATE_INIT, 92 SDDA_STATE_INVALID, 93 SDDA_STATE_NORMAL 94 } sdda_state; 95 96 struct sdda_softc { 97 struct bio_queue_head bio_queue; 98 int outstanding_cmds; /* Number of active commands */ 99 int refcount; /* Active xpt_action() calls */ 100 sdda_state state; 101 sdda_flags flags; 102 struct mmc_data *mmcdata; 103 // sdda_quirks quirks; 104 struct task start_init_task; 105 struct disk *disk; 106 uint32_t raw_csd[4]; 107 uint8_t raw_ext_csd[512]; /* MMC only? */ 108 struct mmc_csd csd; 109 struct mmc_cid cid; 110 struct mmc_scr scr; 111 /* Calculated from CSD */ 112 uint64_t sector_count; 113 uint64_t mediasize; 114 115 /* Calculated from CID */ 116 char card_id_string[64];/* Formatted CID info (serial, MFG, etc) */ 117 char card_sn_string[16];/* Formatted serial # for disk->d_ident */ 118 /* Determined from CSD + is highspeed card*/ 119 uint32_t card_f_max; 120 }; 121 122 #define ccb_bp ppriv_ptr1 123 124 static disk_strategy_t sddastrategy; 125 static periph_init_t sddainit; 126 static void sddaasync(void *callback_arg, u_int32_t code, 127 struct cam_path *path, void *arg); 128 static periph_ctor_t sddaregister; 129 static periph_dtor_t sddacleanup; 130 static periph_start_t sddastart; 131 static periph_oninv_t sddaoninvalidate; 132 static void sddadone(struct cam_periph *periph, 133 union ccb *done_ccb); 134 static int sddaerror(union ccb *ccb, u_int32_t cam_flags, 135 u_int32_t sense_flags); 136 137 static uint16_t get_rca(struct cam_periph *periph); 138 static cam_status sdda_hook_into_geom(struct cam_periph *periph); 139 static void sdda_start_init(void *context, union ccb *start_ccb); 140 static void sdda_start_init_task(void *context, int pending); 141 142 static struct periph_driver sddadriver = 143 { 144 sddainit, "sdda", 145 TAILQ_HEAD_INITIALIZER(sddadriver.units), /* generation */ 0 146 }; 147 148 PERIPHDRIVER_DECLARE(sdda, sddadriver); 149 150 static MALLOC_DEFINE(M_SDDA, "sd_da", "sd_da buffers"); 151 152 static const int exp[8] = { 153 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000 154 }; 155 156 static const int mant[16] = { 157 0, 10, 12, 13, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70, 80 158 }; 159 160 static const int cur_min[8] = { 161 500, 1000, 5000, 10000, 25000, 35000, 60000, 100000 162 }; 163 164 static const int cur_max[8] = { 165 1000, 5000, 10000, 25000, 35000, 45000, 800000, 200000 166 }; 167 168 static uint16_t 169 get_rca(struct cam_periph *periph) { 170 return periph->path->device->mmc_ident_data.card_rca; 171 } 172 173 static uint32_t 174 mmc_get_bits(uint32_t *bits, int bit_len, int start, int size) 175 { 176 const int i = (bit_len / 32) - (start / 32) - 1; 177 const int shift = start & 31; 178 uint32_t retval = bits[i] >> shift; 179 if (size + shift > 32) 180 retval |= bits[i - 1] << (32 - shift); 181 return (retval & ((1llu << size) - 1)); 182 } 183 184 185 static void 186 mmc_decode_csd_sd(uint32_t *raw_csd, struct mmc_csd *csd) 187 { 188 int v; 189 int m; 190 int e; 191 192 memset(csd, 0, sizeof(*csd)); 193 csd->csd_structure = v = mmc_get_bits(raw_csd, 128, 126, 2); 194 if (v == 0) { 195 m = mmc_get_bits(raw_csd, 128, 115, 4); 196 e = mmc_get_bits(raw_csd, 128, 112, 3); 197 csd->tacc = (exp[e] * mant[m] + 9) / 10; 198 csd->nsac = mmc_get_bits(raw_csd, 128, 104, 8) * 100; 199 m = mmc_get_bits(raw_csd, 128, 99, 4); 200 e = mmc_get_bits(raw_csd, 128, 96, 3); 201 csd->tran_speed = exp[e] * 10000 * mant[m]; 202 csd->ccc = mmc_get_bits(raw_csd, 128, 84, 12); 203 csd->read_bl_len = 1 << mmc_get_bits(raw_csd, 128, 80, 4); 204 csd->read_bl_partial = mmc_get_bits(raw_csd, 128, 79, 1); 205 csd->write_blk_misalign = mmc_get_bits(raw_csd, 128, 78, 1); 206 csd->read_blk_misalign = mmc_get_bits(raw_csd, 128, 77, 1); 207 csd->dsr_imp = mmc_get_bits(raw_csd, 128, 76, 1); 208 csd->vdd_r_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 59, 3)]; 209 csd->vdd_r_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 56, 3)]; 210 csd->vdd_w_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 53, 3)]; 211 csd->vdd_w_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 50, 3)]; 212 m = mmc_get_bits(raw_csd, 128, 62, 12); 213 e = mmc_get_bits(raw_csd, 128, 47, 3); 214 csd->capacity = ((1 + m) << (e + 2)) * csd->read_bl_len; 215 csd->erase_blk_en = mmc_get_bits(raw_csd, 128, 46, 1); 216 csd->erase_sector = mmc_get_bits(raw_csd, 128, 39, 7) + 1; 217 csd->wp_grp_size = mmc_get_bits(raw_csd, 128, 32, 7); 218 csd->wp_grp_enable = mmc_get_bits(raw_csd, 128, 31, 1); 219 csd->r2w_factor = 1 << mmc_get_bits(raw_csd, 128, 26, 3); 220 csd->write_bl_len = 1 << mmc_get_bits(raw_csd, 128, 22, 4); 221 csd->write_bl_partial = mmc_get_bits(raw_csd, 128, 21, 1); 222 } else if (v == 1) { 223 m = mmc_get_bits(raw_csd, 128, 115, 4); 224 e = mmc_get_bits(raw_csd, 128, 112, 3); 225 csd->tacc = (exp[e] * mant[m] + 9) / 10; 226 csd->nsac = mmc_get_bits(raw_csd, 128, 104, 8) * 100; 227 m = mmc_get_bits(raw_csd, 128, 99, 4); 228 e = mmc_get_bits(raw_csd, 128, 96, 3); 229 csd->tran_speed = exp[e] * 10000 * mant[m]; 230 csd->ccc = mmc_get_bits(raw_csd, 128, 84, 12); 231 csd->read_bl_len = 1 << mmc_get_bits(raw_csd, 128, 80, 4); 232 csd->read_bl_partial = mmc_get_bits(raw_csd, 128, 79, 1); 233 csd->write_blk_misalign = mmc_get_bits(raw_csd, 128, 78, 1); 234 csd->read_blk_misalign = mmc_get_bits(raw_csd, 128, 77, 1); 235 csd->dsr_imp = mmc_get_bits(raw_csd, 128, 76, 1); 236 csd->capacity = ((uint64_t)mmc_get_bits(raw_csd, 128, 48, 22) + 1) * 237 512 * 1024; 238 csd->erase_blk_en = mmc_get_bits(raw_csd, 128, 46, 1); 239 csd->erase_sector = mmc_get_bits(raw_csd, 128, 39, 7) + 1; 240 csd->wp_grp_size = mmc_get_bits(raw_csd, 128, 32, 7); 241 csd->wp_grp_enable = mmc_get_bits(raw_csd, 128, 31, 1); 242 csd->r2w_factor = 1 << mmc_get_bits(raw_csd, 128, 26, 3); 243 csd->write_bl_len = 1 << mmc_get_bits(raw_csd, 128, 22, 4); 244 csd->write_bl_partial = mmc_get_bits(raw_csd, 128, 21, 1); 245 } else 246 panic("unknown SD CSD version"); 247 } 248 249 static void 250 mmc_decode_csd_mmc(uint32_t *raw_csd, struct mmc_csd *csd) 251 { 252 int m; 253 int e; 254 255 memset(csd, 0, sizeof(*csd)); 256 csd->csd_structure = mmc_get_bits(raw_csd, 128, 126, 2); 257 csd->spec_vers = mmc_get_bits(raw_csd, 128, 122, 4); 258 m = mmc_get_bits(raw_csd, 128, 115, 4); 259 e = mmc_get_bits(raw_csd, 128, 112, 3); 260 csd->tacc = exp[e] * mant[m] + 9 / 10; 261 csd->nsac = mmc_get_bits(raw_csd, 128, 104, 8) * 100; 262 m = mmc_get_bits(raw_csd, 128, 99, 4); 263 e = mmc_get_bits(raw_csd, 128, 96, 3); 264 csd->tran_speed = exp[e] * 10000 * mant[m]; 265 csd->ccc = mmc_get_bits(raw_csd, 128, 84, 12); 266 csd->read_bl_len = 1 << mmc_get_bits(raw_csd, 128, 80, 4); 267 csd->read_bl_partial = mmc_get_bits(raw_csd, 128, 79, 1); 268 csd->write_blk_misalign = mmc_get_bits(raw_csd, 128, 78, 1); 269 csd->read_blk_misalign = mmc_get_bits(raw_csd, 128, 77, 1); 270 csd->dsr_imp = mmc_get_bits(raw_csd, 128, 76, 1); 271 csd->vdd_r_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 59, 3)]; 272 csd->vdd_r_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 56, 3)]; 273 csd->vdd_w_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 53, 3)]; 274 csd->vdd_w_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 50, 3)]; 275 m = mmc_get_bits(raw_csd, 128, 62, 12); 276 e = mmc_get_bits(raw_csd, 128, 47, 3); 277 csd->capacity = ((1 + m) << (e + 2)) * csd->read_bl_len; 278 csd->erase_blk_en = 0; 279 csd->erase_sector = (mmc_get_bits(raw_csd, 128, 42, 5) + 1) * 280 (mmc_get_bits(raw_csd, 128, 37, 5) + 1); 281 csd->wp_grp_size = mmc_get_bits(raw_csd, 128, 32, 5); 282 csd->wp_grp_enable = mmc_get_bits(raw_csd, 128, 31, 1); 283 csd->r2w_factor = 1 << mmc_get_bits(raw_csd, 128, 26, 3); 284 csd->write_bl_len = 1 << mmc_get_bits(raw_csd, 128, 22, 4); 285 csd->write_bl_partial = mmc_get_bits(raw_csd, 128, 21, 1); 286 } 287 288 static void 289 mmc_decode_cid_sd(uint32_t *raw_cid, struct mmc_cid *cid) 290 { 291 int i; 292 293 /* There's no version info, so we take it on faith */ 294 memset(cid, 0, sizeof(*cid)); 295 cid->mid = mmc_get_bits(raw_cid, 128, 120, 8); 296 cid->oid = mmc_get_bits(raw_cid, 128, 104, 16); 297 for (i = 0; i < 5; i++) 298 cid->pnm[i] = mmc_get_bits(raw_cid, 128, 96 - i * 8, 8); 299 cid->pnm[5] = 0; 300 cid->prv = mmc_get_bits(raw_cid, 128, 56, 8); 301 cid->psn = mmc_get_bits(raw_cid, 128, 24, 32); 302 cid->mdt_year = mmc_get_bits(raw_cid, 128, 12, 8) + 2000; 303 cid->mdt_month = mmc_get_bits(raw_cid, 128, 8, 4); 304 } 305 306 static void 307 mmc_decode_cid_mmc(uint32_t *raw_cid, struct mmc_cid *cid) 308 { 309 int i; 310 311 /* There's no version info, so we take it on faith */ 312 memset(cid, 0, sizeof(*cid)); 313 cid->mid = mmc_get_bits(raw_cid, 128, 120, 8); 314 cid->oid = mmc_get_bits(raw_cid, 128, 104, 8); 315 for (i = 0; i < 6; i++) 316 cid->pnm[i] = mmc_get_bits(raw_cid, 128, 96 - i * 8, 8); 317 cid->pnm[6] = 0; 318 cid->prv = mmc_get_bits(raw_cid, 128, 48, 8); 319 cid->psn = mmc_get_bits(raw_cid, 128, 16, 32); 320 cid->mdt_month = mmc_get_bits(raw_cid, 128, 12, 4); 321 cid->mdt_year = mmc_get_bits(raw_cid, 128, 8, 4) + 1997; 322 } 323 324 static void 325 mmc_format_card_id_string(struct sdda_softc *sc, struct mmc_params *mmcp) 326 { 327 char oidstr[8]; 328 uint8_t c1; 329 uint8_t c2; 330 331 /* 332 * Format a card ID string for use by the mmcsd driver, it's what 333 * appears between the <> in the following: 334 * mmcsd0: 968MB <SD SD01G 8.0 SN 2686905 Mfg 08/2008 by 3 TN> at mmc0 335 * 22.5MHz/4bit/128-block 336 * 337 * Also format just the card serial number, which the mmcsd driver will 338 * use as the disk->d_ident string. 339 * 340 * The card_id_string in mmc_ivars is currently allocated as 64 bytes, 341 * and our max formatted length is currently 55 bytes if every field 342 * contains the largest value. 343 * 344 * Sometimes the oid is two printable ascii chars; when it's not, 345 * format it as 0xnnnn instead. 346 */ 347 c1 = (sc->cid.oid >> 8) & 0x0ff; 348 c2 = sc->cid.oid & 0x0ff; 349 if (c1 > 0x1f && c1 < 0x7f && c2 > 0x1f && c2 < 0x7f) 350 snprintf(oidstr, sizeof(oidstr), "%c%c", c1, c2); 351 else 352 snprintf(oidstr, sizeof(oidstr), "0x%04x", sc->cid.oid); 353 snprintf(sc->card_sn_string, sizeof(sc->card_sn_string), 354 "%08X", sc->cid.psn); 355 snprintf(sc->card_id_string, sizeof(sc->card_id_string), 356 "%s%s %s %d.%d SN %08X MFG %02d/%04d by %d %s", 357 mmcp->card_features & CARD_FEATURE_MMC ? "MMC" : "SD", 358 mmcp->card_features & CARD_FEATURE_SDHC ? "HC" : "", 359 sc->cid.pnm, sc->cid.prv >> 4, sc->cid.prv & 0x0f, 360 sc->cid.psn, sc->cid.mdt_month, sc->cid.mdt_year, 361 sc->cid.mid, oidstr); 362 } 363 364 static int 365 sddaopen(struct disk *dp) 366 { 367 struct cam_periph *periph; 368 struct sdda_softc *softc; 369 int error; 370 371 periph = (struct cam_periph *)dp->d_drv1; 372 if (cam_periph_acquire(periph) != 0) { 373 return(ENXIO); 374 } 375 376 cam_periph_lock(periph); 377 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) { 378 cam_periph_unlock(periph); 379 cam_periph_release(periph); 380 return (error); 381 } 382 383 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddaopen\n")); 384 385 softc = (struct sdda_softc *)periph->softc; 386 softc->flags |= SDDA_FLAG_OPEN; 387 388 cam_periph_unhold(periph); 389 cam_periph_unlock(periph); 390 return (0); 391 } 392 393 static int 394 sddaclose(struct disk *dp) 395 { 396 struct cam_periph *periph; 397 struct sdda_softc *softc; 398 // union ccb *ccb; 399 // int error; 400 401 periph = (struct cam_periph *)dp->d_drv1; 402 softc = (struct sdda_softc *)periph->softc; 403 softc->flags &= ~SDDA_FLAG_OPEN; 404 405 cam_periph_lock(periph); 406 407 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("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 xpt_path_inq(&cpi, periph->path); 691 692 bzero(&cgd, sizeof(cgd)); 693 xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NONE); 694 cpi.ccb_h.func_code = XPT_GDEV_TYPE; 695 xpt_action((union ccb *)&cgd); 696 697 /* 698 * Register this media as a disk 699 */ 700 (void)cam_periph_hold(periph, PRIBIO); 701 cam_periph_unlock(periph); 702 703 softc->disk = disk_alloc(); 704 softc->disk->d_rotation_rate = 0; 705 softc->disk->d_devstat = devstat_new_entry(periph->periph_name, 706 periph->unit_number, 512, 707 DEVSTAT_ALL_SUPPORTED, 708 DEVSTAT_TYPE_DIRECT | 709 XPORT_DEVSTAT_TYPE(cpi.transport), 710 DEVSTAT_PRIORITY_DISK); 711 softc->disk->d_open = sddaopen; 712 softc->disk->d_close = sddaclose; 713 softc->disk->d_strategy = sddastrategy; 714 softc->disk->d_getattr = sddagetattr; 715 // softc->disk->d_dump = sddadump; 716 softc->disk->d_gone = sddadiskgonecb; 717 softc->disk->d_name = "sdda"; 718 softc->disk->d_drv1 = periph; 719 maxio = cpi.maxio; /* Honor max I/O size of SIM */ 720 if (maxio == 0) 721 maxio = DFLTPHYS; /* traditional default */ 722 else if (maxio > MAXPHYS) 723 maxio = MAXPHYS; /* for safety */ 724 softc->disk->d_maxsize = maxio; 725 softc->disk->d_unit = periph->unit_number; 726 softc->disk->d_flags = DISKFLAG_CANDELETE; 727 strlcpy(softc->disk->d_descr, softc->card_id_string, 728 MIN(sizeof(softc->disk->d_descr), sizeof(softc->card_id_string))); 729 strlcpy(softc->disk->d_ident, softc->card_sn_string, 730 MIN(sizeof(softc->disk->d_ident), sizeof(softc->card_sn_string))); 731 softc->disk->d_hba_vendor = cpi.hba_vendor; 732 softc->disk->d_hba_device = cpi.hba_device; 733 softc->disk->d_hba_subvendor = cpi.hba_subvendor; 734 softc->disk->d_hba_subdevice = cpi.hba_subdevice; 735 736 softc->disk->d_sectorsize = 512; 737 softc->disk->d_mediasize = softc->mediasize; 738 softc->disk->d_stripesize = 0; 739 softc->disk->d_fwsectors = 0; 740 softc->disk->d_fwheads = 0; 741 742 /* 743 * Acquire a reference to the periph before we register with GEOM. 744 * We'll release this reference once GEOM calls us back (via 745 * sddadiskgonecb()) telling us that our provider has been freed. 746 */ 747 if (cam_periph_acquire(periph) != 0) { 748 xpt_print(periph->path, "%s: lost periph during " 749 "registration!\n", __func__); 750 cam_periph_lock(periph); 751 return (CAM_REQ_CMP_ERR); 752 } 753 disk_create(softc->disk, DISK_VERSION); 754 cam_periph_lock(periph); 755 cam_periph_unhold(periph); 756 757 xpt_announce_periph(periph, softc->card_id_string); 758 759 /* 760 * Add async callbacks for bus reset and 761 * bus device reset calls. I don't bother 762 * checking if this fails as, in most cases, 763 * the system will function just fine without 764 * them and the only alternative would be to 765 * not attach the device on failure. 766 */ 767 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE | 768 AC_GETDEV_CHANGED | AC_ADVINFO_CHANGED, 769 sddaasync, periph, periph->path); 770 771 return(CAM_REQ_CMP); 772 } 773 774 static int 775 mmc_exec_app_cmd(struct cam_periph *periph, union ccb *ccb, 776 struct mmc_command *cmd) { 777 int err; 778 779 /* Send APP_CMD first */ 780 memset(&ccb->mmcio.cmd, 0, sizeof(struct mmc_command)); 781 memset(&ccb->mmcio.stop, 0, sizeof(struct mmc_command)); 782 cam_fill_mmcio(&ccb->mmcio, 783 /*retries*/ 0, 784 /*cbfcnp*/ NULL, 785 /*flags*/ CAM_DIR_NONE, 786 /*mmc_opcode*/ MMC_APP_CMD, 787 /*mmc_arg*/ get_rca(periph) << 16, 788 /*mmc_flags*/ MMC_RSP_R1 | MMC_CMD_AC, 789 /*mmc_data*/ NULL, 790 /*timeout*/ 0); 791 792 err = cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 793 if (err != 0) 794 return err; 795 if (!(ccb->mmcio.cmd.resp[0] & R1_APP_CMD)) 796 return MMC_ERR_FAILED; 797 798 /* Now exec actual command */ 799 int flags = 0; 800 if (cmd->data != NULL) { 801 ccb->mmcio.cmd.data = cmd->data; 802 if (cmd->data->flags & MMC_DATA_READ) 803 flags |= CAM_DIR_IN; 804 if (cmd->data->flags & MMC_DATA_WRITE) 805 flags |= CAM_DIR_OUT; 806 } else flags = CAM_DIR_NONE; 807 808 cam_fill_mmcio(&ccb->mmcio, 809 /*retries*/ 0, 810 /*cbfcnp*/ NULL, 811 /*flags*/ flags, 812 /*mmc_opcode*/ cmd->opcode, 813 /*mmc_arg*/ cmd->arg, 814 /*mmc_flags*/ cmd->flags, 815 /*mmc_data*/ cmd->data, 816 /*timeout*/ 0); 817 818 err = cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 819 memcpy(cmd->resp, ccb->mmcio.cmd.resp, sizeof(cmd->resp)); 820 cmd->error = ccb->mmcio.cmd.error; 821 if (err != 0) 822 return err; 823 return 0; 824 } 825 826 static int 827 mmc_app_get_scr(struct cam_periph *periph, union ccb *ccb, uint32_t *rawscr) { 828 int err; 829 struct mmc_command cmd; 830 struct mmc_data d; 831 832 memset(&cmd, 0, sizeof(cmd)); 833 834 memset(rawscr, 0, 8); 835 cmd.opcode = ACMD_SEND_SCR; 836 cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; 837 cmd.arg = 0; 838 839 d.data = rawscr; 840 d.len = 8; 841 d.flags = MMC_DATA_READ; 842 cmd.data = &d; 843 844 err = mmc_exec_app_cmd(periph, ccb, &cmd); 845 rawscr[0] = be32toh(rawscr[0]); 846 rawscr[1] = be32toh(rawscr[1]); 847 return (err); 848 } 849 850 static int 851 mmc_send_ext_csd(struct cam_periph *periph, union ccb *ccb, 852 uint8_t *rawextcsd, size_t buf_len) { 853 int err; 854 struct mmc_data d; 855 856 KASSERT(buf_len == 512, ("Buffer for ext csd must be 512 bytes")); 857 d.data = rawextcsd; 858 d.len = buf_len; 859 d.flags = MMC_DATA_READ; 860 memset(d.data, 0, d.len); 861 862 cam_fill_mmcio(&ccb->mmcio, 863 /*retries*/ 0, 864 /*cbfcnp*/ NULL, 865 /*flags*/ CAM_DIR_IN, 866 /*mmc_opcode*/ MMC_SEND_EXT_CSD, 867 /*mmc_arg*/ 0, 868 /*mmc_flags*/ MMC_RSP_R1 | MMC_CMD_ADTC, 869 /*mmc_data*/ &d, 870 /*timeout*/ 0); 871 872 err = cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 873 if (err != 0) 874 return err; 875 if (!(ccb->mmcio.cmd.resp[0] & R1_APP_CMD)) 876 return MMC_ERR_FAILED; 877 878 return MMC_ERR_NONE; 879 } 880 881 static void 882 mmc_app_decode_scr(uint32_t *raw_scr, struct mmc_scr *scr) 883 { 884 unsigned int scr_struct; 885 886 memset(scr, 0, sizeof(*scr)); 887 888 scr_struct = mmc_get_bits(raw_scr, 64, 60, 4); 889 if (scr_struct != 0) { 890 printf("Unrecognised SCR structure version %d\n", 891 scr_struct); 892 return; 893 } 894 scr->sda_vsn = mmc_get_bits(raw_scr, 64, 56, 4); 895 scr->bus_widths = mmc_get_bits(raw_scr, 64, 48, 4); 896 } 897 898 static int 899 mmc_switch(struct cam_periph *periph, union ccb *ccb, 900 uint8_t set, uint8_t index, uint8_t value) 901 { 902 int arg = (MMC_SWITCH_FUNC_WR << 24) | 903 (index << 16) | 904 (value << 8) | 905 set; 906 cam_fill_mmcio(&ccb->mmcio, 907 /*retries*/ 0, 908 /*cbfcnp*/ NULL, 909 /*flags*/ CAM_DIR_NONE, 910 /*mmc_opcode*/ MMC_SWITCH_FUNC, 911 /*mmc_arg*/ arg, 912 /*mmc_flags*/ MMC_RSP_R1B | MMC_CMD_AC, 913 /*mmc_data*/ NULL, 914 /*timeout*/ 0); 915 916 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 917 918 if (((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP)) { 919 if (ccb->mmcio.cmd.error != 0) { 920 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_PERIPH, 921 ("%s: MMC command failed", __func__)); 922 return EIO; 923 } 924 return 0; /* Normal return */ 925 } else { 926 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_PERIPH, 927 ("%s: CAM request failed\n", __func__)); 928 return EIO; 929 } 930 931 } 932 933 static int 934 mmc_sd_switch(struct cam_periph *periph, union ccb *ccb, 935 uint8_t mode, uint8_t grp, uint8_t value, 936 uint8_t *res) { 937 938 struct mmc_data mmc_d; 939 940 memset(res, 0, 64); 941 mmc_d.len = 64; 942 mmc_d.data = res; 943 mmc_d.flags = MMC_DATA_READ; 944 945 cam_fill_mmcio(&ccb->mmcio, 946 /*retries*/ 0, 947 /*cbfcnp*/ NULL, 948 /*flags*/ CAM_DIR_IN, 949 /*mmc_opcode*/ SD_SWITCH_FUNC, 950 /*mmc_arg*/ mode << 31, 951 /*mmc_flags*/ MMC_RSP_R1 | MMC_CMD_ADTC, 952 /*mmc_data*/ &mmc_d, 953 /*timeout*/ 0); 954 955 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 956 957 if (((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP)) { 958 if (ccb->mmcio.cmd.error != 0) { 959 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_PERIPH, 960 ("%s: MMC command failed", __func__)); 961 return EIO; 962 } 963 return 0; /* Normal return */ 964 } else { 965 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_PERIPH, 966 ("%s: CAM request failed\n", __func__)); 967 return EIO; 968 } 969 } 970 971 static int 972 mmc_set_timing(struct cam_periph *periph, 973 union ccb *ccb, 974 enum mmc_bus_timing timing) 975 { 976 u_char switch_res[64]; 977 int err; 978 uint8_t value; 979 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 980 981 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, 982 ("mmc_set_timing(timing=%d)", timing)); 983 switch (timing) { 984 case bus_timing_normal: 985 value = 0; 986 break; 987 case bus_timing_hs: 988 value = 1; 989 break; 990 default: 991 return (MMC_ERR_INVALID); 992 } 993 if (mmcp->card_features & CARD_FEATURE_MMC) { 994 err = mmc_switch(periph, ccb, EXT_CSD_CMD_SET_NORMAL, 995 EXT_CSD_HS_TIMING, value); 996 } else { 997 err = mmc_sd_switch(periph, ccb, SD_SWITCH_MODE_SET, SD_SWITCH_GROUP1, value, switch_res); 998 } 999 1000 /* Set high-speed timing on the host */ 1001 struct ccb_trans_settings_mmc *cts; 1002 cts = &ccb->cts.proto_specific.mmc; 1003 ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1004 ccb->ccb_h.flags = CAM_DIR_NONE; 1005 ccb->ccb_h.retry_count = 0; 1006 ccb->ccb_h.timeout = 100; 1007 ccb->ccb_h.cbfcnp = NULL; 1008 cts->ios.timing = timing; 1009 cts->ios_valid = MMC_BT; 1010 xpt_action(ccb); 1011 1012 return (err); 1013 } 1014 1015 static void 1016 sdda_start_init_task(void *context, int pending) { 1017 union ccb *new_ccb; 1018 struct cam_periph *periph; 1019 1020 periph = (struct cam_periph *)context; 1021 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sdda_start_init_task\n")); 1022 new_ccb = xpt_alloc_ccb(); 1023 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, 1024 CAM_PRIORITY_NONE); 1025 1026 cam_periph_lock(periph); 1027 sdda_start_init(context, new_ccb); 1028 cam_periph_unlock(periph); 1029 xpt_free_ccb(new_ccb); 1030 } 1031 1032 static void 1033 sdda_set_bus_width(struct cam_periph *periph, union ccb *ccb, int width) { 1034 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1035 int err; 1036 1037 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sdda_set_bus_width\n")); 1038 1039 /* First set for the card, then for the host */ 1040 if (mmcp->card_features & CARD_FEATURE_MMC) { 1041 uint8_t value; 1042 switch (width) { 1043 case bus_width_1: 1044 value = EXT_CSD_BUS_WIDTH_1; 1045 break; 1046 case bus_width_4: 1047 value = EXT_CSD_BUS_WIDTH_4; 1048 break; 1049 case bus_width_8: 1050 value = EXT_CSD_BUS_WIDTH_8; 1051 break; 1052 default: 1053 panic("Invalid bus width %d", width); 1054 } 1055 err = mmc_switch(periph, ccb, EXT_CSD_CMD_SET_NORMAL, 1056 EXT_CSD_BUS_WIDTH, value); 1057 } else { 1058 /* For SD cards we send ACMD6 with the required bus width in arg */ 1059 struct mmc_command cmd; 1060 memset(&cmd, 0, sizeof(struct mmc_command)); 1061 cmd.opcode = ACMD_SET_BUS_WIDTH; 1062 cmd.arg = width; 1063 cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 1064 err = mmc_exec_app_cmd(periph, ccb, &cmd); 1065 } 1066 1067 if (err != MMC_ERR_NONE) { 1068 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Error %d when setting bus width on the card\n", err)); 1069 return; 1070 } 1071 /* Now card is done, set the host to the same width */ 1072 struct ccb_trans_settings_mmc *cts; 1073 cts = &ccb->cts.proto_specific.mmc; 1074 ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1075 ccb->ccb_h.flags = CAM_DIR_NONE; 1076 ccb->ccb_h.retry_count = 0; 1077 ccb->ccb_h.timeout = 100; 1078 ccb->ccb_h.cbfcnp = NULL; 1079 cts->ios.bus_width = width; 1080 cts->ios_valid = MMC_BW; 1081 xpt_action(ccb); 1082 } 1083 1084 static inline const char *bus_width_str(enum mmc_bus_width w) { 1085 switch (w) { 1086 case bus_width_1: 1087 return "1-bit"; 1088 case bus_width_4: 1089 return "4-bit"; 1090 case bus_width_8: 1091 return "8-bit"; 1092 } 1093 } 1094 1095 static void 1096 sdda_start_init(void *context, union ccb *start_ccb) { 1097 struct cam_periph *periph; 1098 periph = (struct cam_periph *)context; 1099 int err; 1100 1101 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sdda_start_init\n")); 1102 /* periph was held for us when this task was enqueued */ 1103 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 1104 cam_periph_release(periph); 1105 return; 1106 } 1107 1108 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 1109 //struct ccb_mmcio *mmcio = &start_ccb->mmcio; 1110 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1111 struct cam_ed *device = periph->path->device; 1112 1113 if (mmcp->card_features & CARD_FEATURE_MMC) { 1114 mmc_decode_csd_mmc(mmcp->card_csd, &softc->csd); 1115 mmc_decode_cid_mmc(mmcp->card_cid, &softc->cid); 1116 if (softc->csd.spec_vers >= 4) 1117 err = mmc_send_ext_csd(periph, start_ccb, 1118 (uint8_t *)&softc->raw_ext_csd, 1119 sizeof(softc->raw_ext_csd)); 1120 } else { 1121 mmc_decode_csd_sd(mmcp->card_csd, &softc->csd); 1122 mmc_decode_cid_sd(mmcp->card_cid, &softc->cid); 1123 } 1124 1125 softc->sector_count = softc->csd.capacity / 512; 1126 softc->mediasize = softc->csd.capacity; 1127 1128 /* MMC >= 4.x have EXT_CSD that has its own opinion about capacity */ 1129 if (softc->csd.spec_vers >= 4) { 1130 uint32_t sec_count = softc->raw_ext_csd[EXT_CSD_SEC_CNT] + 1131 (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 1] << 8) + 1132 (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 2] << 16) + 1133 (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 3] << 24); 1134 if (sec_count != 0) { 1135 softc->sector_count = sec_count; 1136 softc->mediasize = softc->sector_count * 512; 1137 /* FIXME: there should be a better name for this option...*/ 1138 mmcp->card_features |= CARD_FEATURE_SDHC; 1139 } 1140 1141 } 1142 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1143 ("Capacity: %"PRIu64", sectors: %"PRIu64"\n", 1144 softc->mediasize, 1145 softc->sector_count)); 1146 mmc_format_card_id_string(softc, mmcp); 1147 1148 /* Update info for CAM */ 1149 device->serial_num_len = strlen(softc->card_sn_string); 1150 device->serial_num = 1151 (u_int8_t *)malloc((device->serial_num_len + 1), 1152 M_CAMXPT, M_NOWAIT); 1153 strlcpy(device->serial_num, softc->card_sn_string, device->serial_num_len); 1154 1155 device->device_id_len = strlen(softc->card_id_string); 1156 device->device_id = 1157 (u_int8_t *)malloc((device->device_id_len + 1), 1158 M_CAMXPT, M_NOWAIT); 1159 strlcpy(device->device_id, softc->card_id_string, device->device_id_len); 1160 1161 strlcpy(mmcp->model, softc->card_id_string, sizeof(mmcp->model)); 1162 1163 /* Set the clock frequency that the card can handle */ 1164 struct ccb_trans_settings_mmc *cts; 1165 cts = &start_ccb->cts.proto_specific.mmc; 1166 1167 /* First, get the host's max freq */ 1168 start_ccb->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1169 start_ccb->ccb_h.flags = CAM_DIR_NONE; 1170 start_ccb->ccb_h.retry_count = 0; 1171 start_ccb->ccb_h.timeout = 100; 1172 start_ccb->ccb_h.cbfcnp = NULL; 1173 xpt_action(start_ccb); 1174 1175 if (start_ccb->ccb_h.status != CAM_REQ_CMP) 1176 panic("Cannot get max host freq"); 1177 int host_f_max = cts->host_f_max; 1178 uint32_t host_caps = cts->host_caps; 1179 if (cts->ios.bus_width != bus_width_1) 1180 panic("Bus width in ios is not 1-bit"); 1181 1182 /* Now check if the card supports High-speed */ 1183 softc->card_f_max = softc->csd.tran_speed; 1184 1185 if (host_caps & MMC_CAP_HSPEED) { 1186 /* Find out if the card supports High speed timing */ 1187 if (mmcp->card_features & CARD_FEATURE_SD20) { 1188 /* Get and decode SCR */ 1189 uint32_t rawscr; 1190 uint8_t res[64]; 1191 if (mmc_app_get_scr(periph, start_ccb, &rawscr)) { 1192 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Cannot get SCR\n")); 1193 goto finish_hs_tests; 1194 } 1195 mmc_app_decode_scr(&rawscr, &softc->scr); 1196 1197 if ((softc->scr.sda_vsn >= 1) && (softc->csd.ccc & (1<<10))) { 1198 mmc_sd_switch(periph, start_ccb, SD_SWITCH_MODE_CHECK, 1199 SD_SWITCH_GROUP1, SD_SWITCH_NOCHANGE, res); 1200 if (res[13] & 2) { 1201 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Card supports HS\n")); 1202 softc->card_f_max = SD_HS_MAX; 1203 } 1204 } else { 1205 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Not trying the switch\n")); 1206 goto finish_hs_tests; 1207 } 1208 } 1209 1210 if (mmcp->card_features & CARD_FEATURE_MMC && softc->csd.spec_vers >= 4) { 1211 if (softc->raw_ext_csd[EXT_CSD_CARD_TYPE] 1212 & EXT_CSD_CARD_TYPE_HS_52) 1213 softc->card_f_max = MMC_TYPE_HS_52_MAX; 1214 else if (softc->raw_ext_csd[EXT_CSD_CARD_TYPE] 1215 & EXT_CSD_CARD_TYPE_HS_26) 1216 softc->card_f_max = MMC_TYPE_HS_26_MAX; 1217 } 1218 } 1219 int f_max; 1220 finish_hs_tests: 1221 f_max = min(host_f_max, softc->card_f_max); 1222 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)); 1223 1224 start_ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1225 start_ccb->ccb_h.flags = CAM_DIR_NONE; 1226 start_ccb->ccb_h.retry_count = 0; 1227 start_ccb->ccb_h.timeout = 100; 1228 start_ccb->ccb_h.cbfcnp = NULL; 1229 cts->ios.clock = f_max; 1230 cts->ios_valid = MMC_CLK; 1231 xpt_action(start_ccb); 1232 1233 /* Set bus width */ 1234 enum mmc_bus_width desired_bus_width = bus_width_1; 1235 enum mmc_bus_width max_host_bus_width = 1236 (host_caps & MMC_CAP_8_BIT_DATA ? bus_width_8 : 1237 host_caps & MMC_CAP_4_BIT_DATA ? bus_width_4 : bus_width_1); 1238 enum mmc_bus_width max_card_bus_width = bus_width_1; 1239 if (mmcp->card_features & CARD_FEATURE_SD20 && 1240 softc->scr.bus_widths & SD_SCR_BUS_WIDTH_4) 1241 max_card_bus_width = bus_width_4; 1242 /* 1243 * Unlike SD, MMC cards don't have any information about supported bus width... 1244 * So we need to perform read/write test to find out the width. 1245 */ 1246 /* TODO: figure out bus width for MMC; use 8-bit for now (to test on BBB) */ 1247 if (mmcp->card_features & CARD_FEATURE_MMC) 1248 max_card_bus_width = bus_width_8; 1249 1250 desired_bus_width = min(max_host_bus_width, max_card_bus_width); 1251 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1252 ("Set bus width to %s (min of host %s and card %s)\n", 1253 bus_width_str(desired_bus_width), 1254 bus_width_str(max_host_bus_width), 1255 bus_width_str(max_card_bus_width))); 1256 sdda_set_bus_width(periph, start_ccb, desired_bus_width); 1257 1258 if (f_max > 25000000) { 1259 err = mmc_set_timing(periph, start_ccb, bus_timing_hs); 1260 if (err != MMC_ERR_NONE) 1261 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("Cannot switch card to high-speed mode")); 1262 } 1263 softc->state = SDDA_STATE_NORMAL; 1264 sdda_hook_into_geom(periph); 1265 } 1266 1267 /* Called with periph lock held! */ 1268 static void 1269 sddastart(struct cam_periph *periph, union ccb *start_ccb) 1270 { 1271 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 1272 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1273 1274 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddastart\n")); 1275 1276 if (softc->state != SDDA_STATE_NORMAL) { 1277 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("device is not in SDDA_STATE_NORMAL yet")); 1278 xpt_release_ccb(start_ccb); 1279 return; 1280 } 1281 struct bio *bp; 1282 1283 /* Run regular command. */ 1284 bp = bioq_first(&softc->bio_queue); 1285 if (bp == NULL) { 1286 xpt_release_ccb(start_ccb); 1287 return; 1288 } 1289 bioq_remove(&softc->bio_queue, bp); 1290 1291 switch (bp->bio_cmd) { 1292 case BIO_WRITE: 1293 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_WRITE\n")); 1294 softc->flags |= SDDA_FLAG_DIRTY; 1295 /* FALLTHROUGH */ 1296 case BIO_READ: 1297 { 1298 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_READ\n")); 1299 uint64_t blockno = bp->bio_pblkno; 1300 uint16_t count = bp->bio_bcount / 512; 1301 uint16_t opcode; 1302 1303 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("Block %"PRIu64" cnt %u\n", blockno, count)); 1304 1305 /* Construct new MMC command */ 1306 if (bp->bio_cmd == BIO_READ) { 1307 if (count > 1) 1308 opcode = MMC_READ_MULTIPLE_BLOCK; 1309 else 1310 opcode = MMC_READ_SINGLE_BLOCK; 1311 } else { 1312 if (count > 1) 1313 opcode = MMC_WRITE_MULTIPLE_BLOCK; 1314 else 1315 opcode = MMC_WRITE_BLOCK; 1316 } 1317 1318 start_ccb->ccb_h.func_code = XPT_MMC_IO; 1319 start_ccb->ccb_h.flags = (bp->bio_cmd == BIO_READ ? CAM_DIR_IN : CAM_DIR_OUT); 1320 start_ccb->ccb_h.retry_count = 0; 1321 start_ccb->ccb_h.timeout = 15 * 1000; 1322 start_ccb->ccb_h.cbfcnp = sddadone; 1323 struct ccb_mmcio *mmcio; 1324 1325 mmcio = &start_ccb->mmcio; 1326 mmcio->cmd.opcode = opcode; 1327 mmcio->cmd.arg = blockno; 1328 if (!(mmcp->card_features & CARD_FEATURE_SDHC)) 1329 mmcio->cmd.arg <<= 9; 1330 1331 mmcio->cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; 1332 mmcio->cmd.data = softc->mmcdata; 1333 mmcio->cmd.data->data = bp->bio_data; 1334 mmcio->cmd.data->len = 512 * count; 1335 mmcio->cmd.data->flags = (bp->bio_cmd == BIO_READ ? MMC_DATA_READ : MMC_DATA_WRITE); 1336 /* Direct h/w to issue CMD12 upon completion */ 1337 if (count > 1) { 1338 mmcio->stop.opcode = MMC_STOP_TRANSMISSION; 1339 mmcio->stop.flags = MMC_RSP_R1B | MMC_CMD_AC; 1340 mmcio->stop.arg = 0; 1341 } 1342 1343 break; 1344 } 1345 case BIO_FLUSH: 1346 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_FLUSH\n")); 1347 sddaschedule(periph); 1348 break; 1349 case BIO_DELETE: 1350 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_DELETE\n")); 1351 sddaschedule(periph); 1352 break; 1353 } 1354 start_ccb->ccb_h.ccb_bp = bp; 1355 softc->outstanding_cmds++; 1356 softc->refcount++; 1357 cam_periph_unlock(periph); 1358 xpt_action(start_ccb); 1359 cam_periph_lock(periph); 1360 softc->refcount--; 1361 1362 /* May have more work to do, so ensure we stay scheduled */ 1363 sddaschedule(periph); 1364 } 1365 1366 static void 1367 sddadone(struct cam_periph *periph, union ccb *done_ccb) 1368 { 1369 struct sdda_softc *softc; 1370 struct ccb_mmcio *mmcio; 1371 // struct ccb_getdev *cgd; 1372 struct cam_path *path; 1373 // int state; 1374 1375 softc = (struct sdda_softc *)periph->softc; 1376 mmcio = &done_ccb->mmcio; 1377 path = done_ccb->ccb_h.path; 1378 1379 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("sddadone\n")); 1380 1381 struct bio *bp; 1382 int error = 0; 1383 1384 // cam_periph_lock(periph); 1385 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1386 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("Error!!!\n")); 1387 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1388 cam_release_devq(path, 1389 /*relsim_flags*/0, 1390 /*reduction*/0, 1391 /*timeout*/0, 1392 /*getcount_only*/0); 1393 error = 5; /* EIO */ 1394 } else { 1395 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1396 panic("REQ_CMP with QFRZN"); 1397 error = 0; 1398 } 1399 1400 1401 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1402 bp->bio_error = error; 1403 if (error != 0) { 1404 bp->bio_resid = bp->bio_bcount; 1405 bp->bio_flags |= BIO_ERROR; 1406 } else { 1407 /* XXX: How many bytes remaining? */ 1408 bp->bio_resid = 0; 1409 if (bp->bio_resid > 0) 1410 bp->bio_flags |= BIO_ERROR; 1411 } 1412 1413 uint32_t card_status = mmcio->cmd.resp[0]; 1414 CAM_DEBUG(path, CAM_DEBUG_TRACE, 1415 ("Card status: %08x\n", R1_STATUS(card_status))); 1416 CAM_DEBUG(path, CAM_DEBUG_TRACE, 1417 ("Current state: %d\n", R1_CURRENT_STATE(card_status))); 1418 1419 softc->outstanding_cmds--; 1420 xpt_release_ccb(done_ccb); 1421 biodone(bp); 1422 } 1423 1424 static int 1425 sddaerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1426 { 1427 return(cam_periph_error(ccb, cam_flags, sense_flags)); 1428 } 1429 #endif /* _KERNEL */ 1430