1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2006 Bernd Walter <tisco@FreeBSD.org> All rights reserved. 5 * Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org> All rights reserved. 6 * Copyright (c) 2015-2017 Ilya Bakulin <kibab@FreeBSD.org> All rights reserved. 7 * Copyright (c) 2006 M. Warner Losh <imp@FreeBSD.org> 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer, 14 * without modification, immediately at the beginning of the file. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 * 30 * Some code derived from the sys/dev/mmc and sys/cam/ata 31 * Thanks to Warner Losh <imp@FreeBSD.org>, Alexander Motin <mav@FreeBSD.org> 32 * Bernd Walter <tisco@FreeBSD.org>, and other authors. 33 */ 34 35 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD$"); 37 38 //#include "opt_sdda.h" 39 40 #include <sys/param.h> 41 42 #ifdef _KERNEL 43 #include <sys/systm.h> 44 #include <sys/kernel.h> 45 #include <sys/bio.h> 46 #include <sys/sysctl.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 #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_PART_SWITCH, 93 } sdda_state; 94 95 #define SDDA_FMT_BOOT "sdda%dboot" 96 #define SDDA_FMT_GP "sdda%dgp" 97 #define SDDA_FMT_RPMB "sdda%drpmb" 98 #define SDDA_LABEL_ENH "enh" 99 100 #define SDDA_PART_NAMELEN (16 + 1) 101 102 struct sdda_softc; 103 104 struct sdda_part { 105 struct disk *disk; 106 struct bio_queue_head bio_queue; 107 sdda_flags flags; 108 struct sdda_softc *sc; 109 u_int cnt; 110 u_int type; 111 bool ro; 112 char name[SDDA_PART_NAMELEN]; 113 }; 114 115 struct sdda_softc { 116 int outstanding_cmds; /* Number of active commands */ 117 int refcount; /* Active xpt_action() calls */ 118 sdda_state state; 119 struct mmc_data *mmcdata; 120 struct cam_periph *periph; 121 // sdda_quirks quirks; 122 struct task start_init_task; 123 uint32_t raw_csd[4]; 124 uint8_t raw_ext_csd[512]; /* MMC only? */ 125 struct mmc_csd csd; 126 struct mmc_cid cid; 127 struct mmc_scr scr; 128 /* Calculated from CSD */ 129 uint64_t sector_count; 130 uint64_t mediasize; 131 132 /* Calculated from CID */ 133 char card_id_string[64];/* Formatted CID info (serial, MFG, etc) */ 134 char card_sn_string[16];/* Formatted serial # for disk->d_ident */ 135 /* Determined from CSD + is highspeed card*/ 136 uint32_t card_f_max; 137 138 /* Generic switch timeout */ 139 uint32_t cmd6_time; 140 uint32_t timings; /* Mask of bus timings supported */ 141 uint32_t vccq_120; /* Mask of bus timings at VCCQ of 1.2 V */ 142 uint32_t vccq_180; /* Mask of bus timings at VCCQ of 1.8 V */ 143 /* MMC partitions support */ 144 struct sdda_part *part[MMC_PART_MAX]; 145 uint8_t part_curr; /* Partition currently switched to */ 146 uint8_t part_requested; /* What partition we're currently switching to */ 147 uint32_t part_time; /* Partition switch timeout [us] */ 148 off_t enh_base; /* Enhanced user data area slice base ... */ 149 off_t enh_size; /* ... and size [bytes] */ 150 int log_count; 151 struct timeval log_time; 152 }; 153 154 static const char *mmc_errmsg[] = 155 { 156 "None", 157 "Timeout", 158 "Bad CRC", 159 "Fifo", 160 "Failed", 161 "Invalid", 162 "NO MEMORY" 163 }; 164 165 #define ccb_bp ppriv_ptr1 166 167 static disk_strategy_t sddastrategy; 168 static periph_init_t sddainit; 169 static void sddaasync(void *callback_arg, u_int32_t code, 170 struct cam_path *path, void *arg); 171 static periph_ctor_t sddaregister; 172 static periph_dtor_t sddacleanup; 173 static periph_start_t sddastart; 174 static periph_oninv_t sddaoninvalidate; 175 static void sddadone(struct cam_periph *periph, 176 union ccb *done_ccb); 177 static int sddaerror(union ccb *ccb, u_int32_t cam_flags, 178 u_int32_t sense_flags); 179 180 static int mmc_handle_reply(union ccb *ccb); 181 static uint16_t get_rca(struct cam_periph *periph); 182 static void sdda_start_init(void *context, union ccb *start_ccb); 183 static void sdda_start_init_task(void *context, int pending); 184 static void sdda_process_mmc_partitions(struct cam_periph *periph, union ccb *start_ccb); 185 static uint32_t sdda_get_host_caps(struct cam_periph *periph, union ccb *ccb); 186 static void sdda_init_switch_part(struct cam_periph *periph, union ccb *start_ccb, u_int part); 187 static int mmc_select_card(struct cam_periph *periph, union ccb *ccb, uint32_t rca); 188 static inline uint32_t mmc_get_sector_size(struct cam_periph *periph) {return MMC_SECTOR_SIZE;} 189 190 static SYSCTL_NODE(_kern_cam, OID_AUTO, sdda, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 191 "CAM Direct Access Disk driver"); 192 193 static int sdda_mmcsd_compat = 1; 194 SYSCTL_INT(_kern_cam_sdda, OID_AUTO, mmcsd_compat, CTLFLAG_RDTUN, 195 &sdda_mmcsd_compat, 1, "Enable creation of mmcsd aliases."); 196 197 /* TODO: actually issue GET_TRAN_SETTINGS to get R/O status */ 198 static inline bool sdda_get_read_only(struct cam_periph *periph, union ccb *start_ccb) 199 { 200 201 return (false); 202 } 203 204 static uint32_t mmc_get_spec_vers(struct cam_periph *periph); 205 static uint64_t mmc_get_media_size(struct cam_periph *periph); 206 static uint32_t mmc_get_cmd6_timeout(struct cam_periph *periph); 207 static void sdda_add_part(struct cam_periph *periph, u_int type, 208 const char *name, u_int cnt, off_t media_size, bool ro); 209 210 static struct periph_driver sddadriver = 211 { 212 sddainit, "sdda", 213 TAILQ_HEAD_INITIALIZER(sddadriver.units), /* generation */ 0 214 }; 215 216 PERIPHDRIVER_DECLARE(sdda, sddadriver); 217 218 static MALLOC_DEFINE(M_SDDA, "sd_da", "sd_da buffers"); 219 220 static const int exp[8] = { 221 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000 222 }; 223 224 static const int mant[16] = { 225 0, 10, 12, 13, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70, 80 226 }; 227 228 static const int cur_min[8] = { 229 500, 1000, 5000, 10000, 25000, 35000, 60000, 100000 230 }; 231 232 static const int cur_max[8] = { 233 1000, 5000, 10000, 25000, 35000, 45000, 800000, 200000 234 }; 235 236 static uint16_t 237 get_rca(struct cam_periph *periph) { 238 return periph->path->device->mmc_ident_data.card_rca; 239 } 240 241 /* 242 * Figure out if CCB execution resulted in error. 243 * Look at both CAM-level errors and on MMC protocol errors. 244 */ 245 static int 246 mmc_handle_reply(union ccb *ccb) 247 { 248 249 KASSERT(ccb->ccb_h.func_code == XPT_MMC_IO, 250 ("ccb %p: cannot handle non-XPT_MMC_IO errors, got func_code=%d", 251 ccb, ccb->ccb_h.func_code)); 252 253 /* TODO: maybe put MMC-specific handling into cam.c/cam_error_print altogether */ 254 if (((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP)) { 255 if (ccb->mmcio.cmd.error != 0) { 256 xpt_print_path(ccb->ccb_h.path); 257 printf("CMD%d failed, err %d (%s)\n", 258 ccb->mmcio.cmd.opcode, 259 ccb->mmcio.cmd.error, 260 mmc_errmsg[ccb->mmcio.cmd.error]); 261 return (EIO); 262 } 263 } else { 264 cam_error_print(ccb, CAM_ESF_ALL, CAM_EPF_ALL); 265 return (EIO); 266 } 267 268 return (0); /* Normal return */ 269 } 270 271 272 static uint32_t 273 mmc_get_bits(uint32_t *bits, int bit_len, int start, int size) 274 { 275 const int i = (bit_len / 32) - (start / 32) - 1; 276 const int shift = start & 31; 277 uint32_t retval = bits[i] >> shift; 278 if (size + shift > 32) 279 retval |= bits[i - 1] << (32 - shift); 280 return (retval & ((1llu << size) - 1)); 281 } 282 283 284 static void 285 mmc_decode_csd_sd(uint32_t *raw_csd, struct mmc_csd *csd) 286 { 287 int v; 288 int m; 289 int e; 290 291 memset(csd, 0, sizeof(*csd)); 292 csd->csd_structure = v = mmc_get_bits(raw_csd, 128, 126, 2); 293 if (v == 0) { 294 m = mmc_get_bits(raw_csd, 128, 115, 4); 295 e = mmc_get_bits(raw_csd, 128, 112, 3); 296 csd->tacc = (exp[e] * mant[m] + 9) / 10; 297 csd->nsac = mmc_get_bits(raw_csd, 128, 104, 8) * 100; 298 m = mmc_get_bits(raw_csd, 128, 99, 4); 299 e = mmc_get_bits(raw_csd, 128, 96, 3); 300 csd->tran_speed = exp[e] * 10000 * mant[m]; 301 csd->ccc = mmc_get_bits(raw_csd, 128, 84, 12); 302 csd->read_bl_len = 1 << mmc_get_bits(raw_csd, 128, 80, 4); 303 csd->read_bl_partial = mmc_get_bits(raw_csd, 128, 79, 1); 304 csd->write_blk_misalign = mmc_get_bits(raw_csd, 128, 78, 1); 305 csd->read_blk_misalign = mmc_get_bits(raw_csd, 128, 77, 1); 306 csd->dsr_imp = mmc_get_bits(raw_csd, 128, 76, 1); 307 csd->vdd_r_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 59, 3)]; 308 csd->vdd_r_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 56, 3)]; 309 csd->vdd_w_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 53, 3)]; 310 csd->vdd_w_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 50, 3)]; 311 m = mmc_get_bits(raw_csd, 128, 62, 12); 312 e = mmc_get_bits(raw_csd, 128, 47, 3); 313 csd->capacity = ((1 + m) << (e + 2)) * csd->read_bl_len; 314 csd->erase_blk_en = mmc_get_bits(raw_csd, 128, 46, 1); 315 csd->erase_sector = mmc_get_bits(raw_csd, 128, 39, 7) + 1; 316 csd->wp_grp_size = mmc_get_bits(raw_csd, 128, 32, 7); 317 csd->wp_grp_enable = mmc_get_bits(raw_csd, 128, 31, 1); 318 csd->r2w_factor = 1 << mmc_get_bits(raw_csd, 128, 26, 3); 319 csd->write_bl_len = 1 << mmc_get_bits(raw_csd, 128, 22, 4); 320 csd->write_bl_partial = mmc_get_bits(raw_csd, 128, 21, 1); 321 } else if (v == 1) { 322 m = mmc_get_bits(raw_csd, 128, 115, 4); 323 e = mmc_get_bits(raw_csd, 128, 112, 3); 324 csd->tacc = (exp[e] * mant[m] + 9) / 10; 325 csd->nsac = mmc_get_bits(raw_csd, 128, 104, 8) * 100; 326 m = mmc_get_bits(raw_csd, 128, 99, 4); 327 e = mmc_get_bits(raw_csd, 128, 96, 3); 328 csd->tran_speed = exp[e] * 10000 * mant[m]; 329 csd->ccc = mmc_get_bits(raw_csd, 128, 84, 12); 330 csd->read_bl_len = 1 << mmc_get_bits(raw_csd, 128, 80, 4); 331 csd->read_bl_partial = mmc_get_bits(raw_csd, 128, 79, 1); 332 csd->write_blk_misalign = mmc_get_bits(raw_csd, 128, 78, 1); 333 csd->read_blk_misalign = mmc_get_bits(raw_csd, 128, 77, 1); 334 csd->dsr_imp = mmc_get_bits(raw_csd, 128, 76, 1); 335 csd->capacity = ((uint64_t)mmc_get_bits(raw_csd, 128, 48, 22) + 1) * 336 512 * 1024; 337 csd->erase_blk_en = mmc_get_bits(raw_csd, 128, 46, 1); 338 csd->erase_sector = mmc_get_bits(raw_csd, 128, 39, 7) + 1; 339 csd->wp_grp_size = mmc_get_bits(raw_csd, 128, 32, 7); 340 csd->wp_grp_enable = mmc_get_bits(raw_csd, 128, 31, 1); 341 csd->r2w_factor = 1 << mmc_get_bits(raw_csd, 128, 26, 3); 342 csd->write_bl_len = 1 << mmc_get_bits(raw_csd, 128, 22, 4); 343 csd->write_bl_partial = mmc_get_bits(raw_csd, 128, 21, 1); 344 } else 345 panic("unknown SD CSD version"); 346 } 347 348 static void 349 mmc_decode_csd_mmc(uint32_t *raw_csd, struct mmc_csd *csd) 350 { 351 int m; 352 int e; 353 354 memset(csd, 0, sizeof(*csd)); 355 csd->csd_structure = mmc_get_bits(raw_csd, 128, 126, 2); 356 csd->spec_vers = mmc_get_bits(raw_csd, 128, 122, 4); 357 m = mmc_get_bits(raw_csd, 128, 115, 4); 358 e = mmc_get_bits(raw_csd, 128, 112, 3); 359 csd->tacc = exp[e] * mant[m] + 9 / 10; 360 csd->nsac = mmc_get_bits(raw_csd, 128, 104, 8) * 100; 361 m = mmc_get_bits(raw_csd, 128, 99, 4); 362 e = mmc_get_bits(raw_csd, 128, 96, 3); 363 csd->tran_speed = exp[e] * 10000 * mant[m]; 364 csd->ccc = mmc_get_bits(raw_csd, 128, 84, 12); 365 csd->read_bl_len = 1 << mmc_get_bits(raw_csd, 128, 80, 4); 366 csd->read_bl_partial = mmc_get_bits(raw_csd, 128, 79, 1); 367 csd->write_blk_misalign = mmc_get_bits(raw_csd, 128, 78, 1); 368 csd->read_blk_misalign = mmc_get_bits(raw_csd, 128, 77, 1); 369 csd->dsr_imp = mmc_get_bits(raw_csd, 128, 76, 1); 370 csd->vdd_r_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 59, 3)]; 371 csd->vdd_r_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 56, 3)]; 372 csd->vdd_w_curr_min = cur_min[mmc_get_bits(raw_csd, 128, 53, 3)]; 373 csd->vdd_w_curr_max = cur_max[mmc_get_bits(raw_csd, 128, 50, 3)]; 374 m = mmc_get_bits(raw_csd, 128, 62, 12); 375 e = mmc_get_bits(raw_csd, 128, 47, 3); 376 csd->capacity = ((1 + m) << (e + 2)) * csd->read_bl_len; 377 csd->erase_blk_en = 0; 378 csd->erase_sector = (mmc_get_bits(raw_csd, 128, 42, 5) + 1) * 379 (mmc_get_bits(raw_csd, 128, 37, 5) + 1); 380 csd->wp_grp_size = mmc_get_bits(raw_csd, 128, 32, 5); 381 csd->wp_grp_enable = mmc_get_bits(raw_csd, 128, 31, 1); 382 csd->r2w_factor = 1 << mmc_get_bits(raw_csd, 128, 26, 3); 383 csd->write_bl_len = 1 << mmc_get_bits(raw_csd, 128, 22, 4); 384 csd->write_bl_partial = mmc_get_bits(raw_csd, 128, 21, 1); 385 } 386 387 static void 388 mmc_decode_cid_sd(uint32_t *raw_cid, struct mmc_cid *cid) 389 { 390 int i; 391 392 /* There's no version info, so we take it on faith */ 393 memset(cid, 0, sizeof(*cid)); 394 cid->mid = mmc_get_bits(raw_cid, 128, 120, 8); 395 cid->oid = mmc_get_bits(raw_cid, 128, 104, 16); 396 for (i = 0; i < 5; i++) 397 cid->pnm[i] = mmc_get_bits(raw_cid, 128, 96 - i * 8, 8); 398 cid->pnm[5] = 0; 399 cid->prv = mmc_get_bits(raw_cid, 128, 56, 8); 400 cid->psn = mmc_get_bits(raw_cid, 128, 24, 32); 401 cid->mdt_year = mmc_get_bits(raw_cid, 128, 12, 8) + 2000; 402 cid->mdt_month = mmc_get_bits(raw_cid, 128, 8, 4); 403 } 404 405 static void 406 mmc_decode_cid_mmc(uint32_t *raw_cid, struct mmc_cid *cid) 407 { 408 int i; 409 410 /* There's no version info, so we take it on faith */ 411 memset(cid, 0, sizeof(*cid)); 412 cid->mid = mmc_get_bits(raw_cid, 128, 120, 8); 413 cid->oid = mmc_get_bits(raw_cid, 128, 104, 8); 414 for (i = 0; i < 6; i++) 415 cid->pnm[i] = mmc_get_bits(raw_cid, 128, 96 - i * 8, 8); 416 cid->pnm[6] = 0; 417 cid->prv = mmc_get_bits(raw_cid, 128, 48, 8); 418 cid->psn = mmc_get_bits(raw_cid, 128, 16, 32); 419 cid->mdt_month = mmc_get_bits(raw_cid, 128, 12, 4); 420 cid->mdt_year = mmc_get_bits(raw_cid, 128, 8, 4) + 1997; 421 } 422 423 static void 424 mmc_format_card_id_string(struct sdda_softc *sc, struct mmc_params *mmcp) 425 { 426 char oidstr[8]; 427 uint8_t c1; 428 uint8_t c2; 429 430 /* 431 * Format a card ID string for use by the mmcsd driver, it's what 432 * appears between the <> in the following: 433 * mmcsd0: 968MB <SD SD01G 8.0 SN 2686905 Mfg 08/2008 by 3 TN> at mmc0 434 * 22.5MHz/4bit/128-block 435 * 436 * Also format just the card serial number, which the mmcsd driver will 437 * use as the disk->d_ident string. 438 * 439 * The card_id_string in mmc_ivars is currently allocated as 64 bytes, 440 * and our max formatted length is currently 55 bytes if every field 441 * contains the largest value. 442 * 443 * Sometimes the oid is two printable ascii chars; when it's not, 444 * format it as 0xnnnn instead. 445 */ 446 c1 = (sc->cid.oid >> 8) & 0x0ff; 447 c2 = sc->cid.oid & 0x0ff; 448 if (c1 > 0x1f && c1 < 0x7f && c2 > 0x1f && c2 < 0x7f) 449 snprintf(oidstr, sizeof(oidstr), "%c%c", c1, c2); 450 else 451 snprintf(oidstr, sizeof(oidstr), "0x%04x", sc->cid.oid); 452 snprintf(sc->card_sn_string, sizeof(sc->card_sn_string), 453 "%08X", sc->cid.psn); 454 snprintf(sc->card_id_string, sizeof(sc->card_id_string), 455 "%s%s %s %d.%d SN %08X MFG %02d/%04d by %d %s", 456 mmcp->card_features & CARD_FEATURE_MMC ? "MMC" : "SD", 457 mmcp->card_features & CARD_FEATURE_SDHC ? "HC" : "", 458 sc->cid.pnm, sc->cid.prv >> 4, sc->cid.prv & 0x0f, 459 sc->cid.psn, sc->cid.mdt_month, sc->cid.mdt_year, 460 sc->cid.mid, oidstr); 461 } 462 463 static int 464 sddaopen(struct disk *dp) 465 { 466 struct sdda_part *part; 467 struct cam_periph *periph; 468 struct sdda_softc *softc; 469 int error; 470 471 part = (struct sdda_part *)dp->d_drv1; 472 softc = part->sc; 473 periph = softc->periph; 474 if (cam_periph_acquire(periph) != 0) { 475 return(ENXIO); 476 } 477 478 cam_periph_lock(periph); 479 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) { 480 cam_periph_unlock(periph); 481 cam_periph_release(periph); 482 return (error); 483 } 484 485 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddaopen\n")); 486 487 part->flags |= SDDA_FLAG_OPEN; 488 489 cam_periph_unhold(periph); 490 cam_periph_unlock(periph); 491 return (0); 492 } 493 494 static int 495 sddaclose(struct disk *dp) 496 { 497 struct sdda_part *part; 498 struct cam_periph *periph; 499 struct sdda_softc *softc; 500 501 part = (struct sdda_part *)dp->d_drv1; 502 softc = part->sc; 503 periph = softc->periph; 504 part->flags &= ~SDDA_FLAG_OPEN; 505 506 cam_periph_lock(periph); 507 508 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddaclose\n")); 509 510 while (softc->refcount != 0) 511 cam_periph_sleep(periph, &softc->refcount, PRIBIO, "sddaclose", 1); 512 cam_periph_unlock(periph); 513 cam_periph_release(periph); 514 return (0); 515 } 516 517 static void 518 sddaschedule(struct cam_periph *periph) 519 { 520 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 521 struct sdda_part *part; 522 struct bio *bp; 523 int i; 524 525 /* Check if we have more work to do. */ 526 /* Find partition that has outstanding commands. Prefer current partition. */ 527 bp = bioq_first(&softc->part[softc->part_curr]->bio_queue); 528 if (bp == NULL) { 529 for (i = 0; i < MMC_PART_MAX; i++) { 530 if ((part = softc->part[i]) != NULL && 531 (bp = bioq_first(&softc->part[i]->bio_queue)) != NULL) 532 break; 533 } 534 } 535 if (bp != NULL) { 536 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 537 } 538 } 539 540 /* 541 * Actually translate the requested transfer into one the physical driver 542 * can understand. The transfer is described by a buf and will include 543 * only one physical transfer. 544 */ 545 static void 546 sddastrategy(struct bio *bp) 547 { 548 struct cam_periph *periph; 549 struct sdda_part *part; 550 struct sdda_softc *softc; 551 552 part = (struct sdda_part *)bp->bio_disk->d_drv1; 553 softc = part->sc; 554 periph = softc->periph; 555 556 cam_periph_lock(periph); 557 558 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddastrategy(%p)\n", bp)); 559 560 /* 561 * If the device has been made invalid, error out 562 */ 563 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 564 cam_periph_unlock(periph); 565 biofinish(bp, NULL, ENXIO); 566 return; 567 } 568 569 /* 570 * Place it in the queue of disk activities for this disk 571 */ 572 bioq_disksort(&part->bio_queue, bp); 573 574 /* 575 * Schedule ourselves for performing the work. 576 */ 577 sddaschedule(periph); 578 cam_periph_unlock(periph); 579 580 return; 581 } 582 583 static void 584 sddainit(void) 585 { 586 cam_status status; 587 588 /* 589 * Install a global async callback. This callback will 590 * receive async callbacks like "new device found". 591 */ 592 status = xpt_register_async(AC_FOUND_DEVICE, sddaasync, NULL, NULL); 593 594 if (status != CAM_REQ_CMP) { 595 printf("sdda: Failed to attach master async callback " 596 "due to status 0x%x!\n", status); 597 } 598 } 599 600 /* 601 * Callback from GEOM, called when it has finished cleaning up its 602 * resources. 603 */ 604 static void 605 sddadiskgonecb(struct disk *dp) 606 { 607 struct cam_periph *periph; 608 struct sdda_part *part; 609 610 part = (struct sdda_part *)dp->d_drv1; 611 periph = part->sc->periph; 612 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddadiskgonecb\n")); 613 614 cam_periph_release(periph); 615 } 616 617 static void 618 sddaoninvalidate(struct cam_periph *periph) 619 { 620 struct sdda_softc *softc; 621 struct sdda_part *part; 622 623 softc = (struct sdda_softc *)periph->softc; 624 625 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddaoninvalidate\n")); 626 627 /* 628 * De-register any async callbacks. 629 */ 630 xpt_register_async(0, sddaasync, periph, periph->path); 631 632 /* 633 * Return all queued I/O with ENXIO. 634 * XXX Handle any transactions queued to the card 635 * with XPT_ABORT_CCB. 636 */ 637 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("bioq_flush start\n")); 638 for (int i = 0; i < MMC_PART_MAX; i++) { 639 if ((part = softc->part[i]) != NULL) { 640 bioq_flush(&part->bio_queue, NULL, ENXIO); 641 disk_gone(part->disk); 642 } 643 } 644 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("bioq_flush end\n")); 645 646 } 647 648 static void 649 sddacleanup(struct cam_periph *periph) 650 { 651 struct sdda_softc *softc; 652 struct sdda_part *part; 653 int i; 654 655 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddacleanup\n")); 656 softc = (struct sdda_softc *)periph->softc; 657 658 cam_periph_unlock(periph); 659 660 for (i = 0; i < MMC_PART_MAX; i++) { 661 if ((part = softc->part[i]) != NULL) { 662 disk_destroy(part->disk); 663 free(part, M_DEVBUF); 664 softc->part[i] = NULL; 665 } 666 } 667 free(softc, M_DEVBUF); 668 cam_periph_lock(periph); 669 } 670 671 static void 672 sddaasync(void *callback_arg, u_int32_t code, 673 struct cam_path *path, void *arg) 674 { 675 struct ccb_getdev cgd; 676 struct cam_periph *periph; 677 struct sdda_softc *softc; 678 679 periph = (struct cam_periph *)callback_arg; 680 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("sddaasync(code=%d)\n", code)); 681 switch (code) { 682 case AC_FOUND_DEVICE: 683 { 684 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("=> AC_FOUND_DEVICE\n")); 685 struct ccb_getdev *cgd; 686 cam_status status; 687 688 cgd = (struct ccb_getdev *)arg; 689 if (cgd == NULL) 690 break; 691 692 if (cgd->protocol != PROTO_MMCSD) 693 break; 694 695 if (!(path->device->mmc_ident_data.card_features & CARD_FEATURE_MEMORY)) { 696 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("No memory on the card!\n")); 697 break; 698 } 699 700 /* 701 * Allocate a peripheral instance for 702 * this device and start the probe 703 * process. 704 */ 705 status = cam_periph_alloc(sddaregister, sddaoninvalidate, 706 sddacleanup, sddastart, 707 "sdda", CAM_PERIPH_BIO, 708 path, sddaasync, 709 AC_FOUND_DEVICE, cgd); 710 711 if (status != CAM_REQ_CMP 712 && status != CAM_REQ_INPROG) 713 printf("sddaasync: Unable to attach to new device " 714 "due to status 0x%x\n", status); 715 break; 716 } 717 case AC_GETDEV_CHANGED: 718 { 719 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("=> AC_GETDEV_CHANGED\n")); 720 softc = (struct sdda_softc *)periph->softc; 721 xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 722 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 723 xpt_action((union ccb *)&cgd); 724 cam_periph_async(periph, code, path, arg); 725 break; 726 } 727 case AC_ADVINFO_CHANGED: 728 { 729 uintptr_t buftype; 730 int i; 731 732 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("=> AC_ADVINFO_CHANGED\n")); 733 buftype = (uintptr_t)arg; 734 if (buftype == CDAI_TYPE_PHYS_PATH) { 735 struct sdda_softc *softc; 736 struct sdda_part *part; 737 738 softc = periph->softc; 739 for (i = 0; i < MMC_PART_MAX; i++) { 740 if ((part = softc->part[i]) != NULL) { 741 disk_attr_changed(part->disk, "GEOM::physpath", 742 M_NOWAIT); 743 } 744 } 745 } 746 break; 747 } 748 default: 749 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("=> default?!\n")); 750 cam_periph_async(periph, code, path, arg); 751 break; 752 } 753 } 754 755 756 static int 757 sddagetattr(struct bio *bp) 758 { 759 struct cam_periph *periph; 760 struct sdda_softc *softc; 761 struct sdda_part *part; 762 int ret; 763 764 part = (struct sdda_part *)bp->bio_disk->d_drv1; 765 softc = part->sc; 766 periph = softc->periph; 767 cam_periph_lock(periph); 768 ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute, 769 periph->path); 770 cam_periph_unlock(periph); 771 if (ret == 0) 772 bp->bio_completed = bp->bio_length; 773 return (ret); 774 } 775 776 static cam_status 777 sddaregister(struct cam_periph *periph, void *arg) 778 { 779 struct sdda_softc *softc; 780 struct ccb_getdev *cgd; 781 union ccb *request_ccb; /* CCB representing the probe request */ 782 783 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddaregister\n")); 784 cgd = (struct ccb_getdev *)arg; 785 if (cgd == NULL) { 786 printf("sddaregister: no getdev CCB, can't register device\n"); 787 return (CAM_REQ_CMP_ERR); 788 } 789 790 softc = (struct sdda_softc *)malloc(sizeof(*softc), M_DEVBUF, 791 M_NOWAIT|M_ZERO); 792 793 if (softc == NULL) { 794 printf("sddaregister: Unable to probe new device. " 795 "Unable to allocate softc\n"); 796 return (CAM_REQ_CMP_ERR); 797 } 798 799 softc->state = SDDA_STATE_INIT; 800 softc->mmcdata = 801 (struct mmc_data *)malloc(sizeof(struct mmc_data), M_DEVBUF, M_NOWAIT|M_ZERO); 802 if (softc->mmcdata == NULL) { 803 printf("sddaregister: Unable to probe new device. " 804 "Unable to allocate mmcdata\n"); 805 return (CAM_REQ_CMP_ERR); 806 } 807 periph->softc = softc; 808 softc->periph = periph; 809 810 request_ccb = (union ccb*) arg; 811 xpt_schedule(periph, CAM_PRIORITY_XPT); 812 TASK_INIT(&softc->start_init_task, 0, sdda_start_init_task, periph); 813 taskqueue_enqueue(taskqueue_thread, &softc->start_init_task); 814 815 return (CAM_REQ_CMP); 816 } 817 818 static int 819 mmc_exec_app_cmd(struct cam_periph *periph, union ccb *ccb, 820 struct mmc_command *cmd) { 821 int err; 822 823 /* Send APP_CMD first */ 824 memset(&ccb->mmcio.cmd, 0, sizeof(struct mmc_command)); 825 memset(&ccb->mmcio.stop, 0, sizeof(struct mmc_command)); 826 cam_fill_mmcio(&ccb->mmcio, 827 /*retries*/ 0, 828 /*cbfcnp*/ NULL, 829 /*flags*/ CAM_DIR_NONE, 830 /*mmc_opcode*/ MMC_APP_CMD, 831 /*mmc_arg*/ get_rca(periph) << 16, 832 /*mmc_flags*/ MMC_RSP_R1 | MMC_CMD_AC, 833 /*mmc_data*/ NULL, 834 /*timeout*/ 0); 835 836 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 837 err = mmc_handle_reply(ccb); 838 if (err != 0) 839 return (err); 840 if (!(ccb->mmcio.cmd.resp[0] & R1_APP_CMD)) 841 return (EIO); 842 843 /* Now exec actual command */ 844 int flags = 0; 845 if (cmd->data != NULL) { 846 ccb->mmcio.cmd.data = cmd->data; 847 if (cmd->data->flags & MMC_DATA_READ) 848 flags |= CAM_DIR_IN; 849 if (cmd->data->flags & MMC_DATA_WRITE) 850 flags |= CAM_DIR_OUT; 851 } else flags = CAM_DIR_NONE; 852 853 cam_fill_mmcio(&ccb->mmcio, 854 /*retries*/ 0, 855 /*cbfcnp*/ NULL, 856 /*flags*/ flags, 857 /*mmc_opcode*/ cmd->opcode, 858 /*mmc_arg*/ cmd->arg, 859 /*mmc_flags*/ cmd->flags, 860 /*mmc_data*/ cmd->data, 861 /*timeout*/ 0); 862 863 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 864 err = mmc_handle_reply(ccb); 865 if (err != 0) 866 return (err); 867 memcpy(cmd->resp, ccb->mmcio.cmd.resp, sizeof(cmd->resp)); 868 cmd->error = ccb->mmcio.cmd.error; 869 870 return (0); 871 } 872 873 static int 874 mmc_app_get_scr(struct cam_periph *periph, union ccb *ccb, uint32_t *rawscr) { 875 int err; 876 struct mmc_command cmd; 877 struct mmc_data d; 878 879 memset(&cmd, 0, sizeof(cmd)); 880 memset(&d, 0, sizeof(d)); 881 882 memset(rawscr, 0, 8); 883 cmd.opcode = ACMD_SEND_SCR; 884 cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; 885 cmd.arg = 0; 886 887 d.data = rawscr; 888 d.len = 8; 889 d.flags = MMC_DATA_READ; 890 cmd.data = &d; 891 892 err = mmc_exec_app_cmd(periph, ccb, &cmd); 893 rawscr[0] = be32toh(rawscr[0]); 894 rawscr[1] = be32toh(rawscr[1]); 895 return (err); 896 } 897 898 static int 899 mmc_send_ext_csd(struct cam_periph *periph, union ccb *ccb, 900 uint8_t *rawextcsd, size_t buf_len) { 901 int err; 902 struct mmc_data d; 903 904 KASSERT(buf_len == 512, ("Buffer for ext csd must be 512 bytes")); 905 memset(&d, 0, sizeof(d)); 906 d.data = rawextcsd; 907 d.len = buf_len; 908 d.flags = MMC_DATA_READ; 909 memset(d.data, 0, d.len); 910 911 cam_fill_mmcio(&ccb->mmcio, 912 /*retries*/ 0, 913 /*cbfcnp*/ NULL, 914 /*flags*/ CAM_DIR_IN, 915 /*mmc_opcode*/ MMC_SEND_EXT_CSD, 916 /*mmc_arg*/ 0, 917 /*mmc_flags*/ MMC_RSP_R1 | MMC_CMD_ADTC, 918 /*mmc_data*/ &d, 919 /*timeout*/ 0); 920 921 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 922 err = mmc_handle_reply(ccb); 923 return (err); 924 } 925 926 static void 927 mmc_app_decode_scr(uint32_t *raw_scr, struct mmc_scr *scr) 928 { 929 unsigned int scr_struct; 930 931 memset(scr, 0, sizeof(*scr)); 932 933 scr_struct = mmc_get_bits(raw_scr, 64, 60, 4); 934 if (scr_struct != 0) { 935 printf("Unrecognised SCR structure version %d\n", 936 scr_struct); 937 return; 938 } 939 scr->sda_vsn = mmc_get_bits(raw_scr, 64, 56, 4); 940 scr->bus_widths = mmc_get_bits(raw_scr, 64, 48, 4); 941 } 942 943 static inline void 944 mmc_switch_fill_mmcio(union ccb *ccb, 945 uint8_t set, uint8_t index, uint8_t value, u_int timeout) 946 { 947 int arg = (MMC_SWITCH_FUNC_WR << 24) | 948 (index << 16) | 949 (value << 8) | 950 set; 951 952 cam_fill_mmcio(&ccb->mmcio, 953 /*retries*/ 0, 954 /*cbfcnp*/ NULL, 955 /*flags*/ CAM_DIR_NONE, 956 /*mmc_opcode*/ MMC_SWITCH_FUNC, 957 /*mmc_arg*/ arg, 958 /*mmc_flags*/ MMC_RSP_R1B | MMC_CMD_AC, 959 /*mmc_data*/ NULL, 960 /*timeout*/ timeout); 961 } 962 963 static int 964 mmc_select_card(struct cam_periph *periph, union ccb *ccb, uint32_t rca) 965 { 966 int flags, err; 967 968 flags = (rca ? MMC_RSP_R1B : MMC_RSP_NONE) | MMC_CMD_AC; 969 cam_fill_mmcio(&ccb->mmcio, 970 /*retries*/ 0, 971 /*cbfcnp*/ NULL, 972 /*flags*/ CAM_DIR_IN, 973 /*mmc_opcode*/ MMC_SELECT_CARD, 974 /*mmc_arg*/ rca << 16, 975 /*mmc_flags*/ flags, 976 /*mmc_data*/ NULL, 977 /*timeout*/ 0); 978 979 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 980 err = mmc_handle_reply(ccb); 981 return (err); 982 } 983 984 static int 985 mmc_switch(struct cam_periph *periph, union ccb *ccb, 986 uint8_t set, uint8_t index, uint8_t value, u_int timeout) 987 { 988 int err; 989 990 mmc_switch_fill_mmcio(ccb, set, index, value, timeout); 991 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 992 err = mmc_handle_reply(ccb); 993 return (err); 994 } 995 996 static uint32_t 997 mmc_get_spec_vers(struct cam_periph *periph) { 998 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 999 1000 return (softc->csd.spec_vers); 1001 } 1002 1003 static uint64_t 1004 mmc_get_media_size(struct cam_periph *periph) { 1005 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 1006 1007 return (softc->mediasize); 1008 } 1009 1010 static uint32_t 1011 mmc_get_cmd6_timeout(struct cam_periph *periph) 1012 { 1013 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 1014 1015 if (mmc_get_spec_vers(periph) >= 6) 1016 return (softc->raw_ext_csd[EXT_CSD_GEN_CMD6_TIME] * 10); 1017 return (500 * 1000); 1018 } 1019 1020 static int 1021 mmc_sd_switch(struct cam_periph *periph, union ccb *ccb, 1022 uint8_t mode, uint8_t grp, uint8_t value, 1023 uint8_t *res) { 1024 1025 struct mmc_data mmc_d; 1026 uint32_t arg; 1027 int err; 1028 1029 memset(res, 0, 64); 1030 memset(&mmc_d, 0, sizeof(mmc_d)); 1031 mmc_d.len = 64; 1032 mmc_d.data = res; 1033 mmc_d.flags = MMC_DATA_READ; 1034 1035 arg = mode << 31; /* 0 - check, 1 - set */ 1036 arg |= 0x00FFFFFF; 1037 arg &= ~(0xF << (grp * 4)); 1038 arg |= value << (grp * 4); 1039 1040 cam_fill_mmcio(&ccb->mmcio, 1041 /*retries*/ 0, 1042 /*cbfcnp*/ NULL, 1043 /*flags*/ CAM_DIR_IN, 1044 /*mmc_opcode*/ SD_SWITCH_FUNC, 1045 /*mmc_arg*/ arg, 1046 /*mmc_flags*/ MMC_RSP_R1 | MMC_CMD_ADTC, 1047 /*mmc_data*/ &mmc_d, 1048 /*timeout*/ 0); 1049 1050 cam_periph_runccb(ccb, sddaerror, CAM_FLAG_NONE, /*sense_flags*/0, NULL); 1051 err = mmc_handle_reply(ccb); 1052 return (err); 1053 } 1054 1055 static int 1056 mmc_set_timing(struct cam_periph *periph, 1057 union ccb *ccb, 1058 enum mmc_bus_timing timing) 1059 { 1060 u_char switch_res[64]; 1061 int err; 1062 uint8_t value; 1063 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 1064 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1065 1066 CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, 1067 ("mmc_set_timing(timing=%d)", timing)); 1068 switch (timing) { 1069 case bus_timing_normal: 1070 value = 0; 1071 break; 1072 case bus_timing_hs: 1073 value = 1; 1074 break; 1075 default: 1076 return (MMC_ERR_INVALID); 1077 } 1078 if (mmcp->card_features & CARD_FEATURE_MMC) { 1079 err = mmc_switch(periph, ccb, EXT_CSD_CMD_SET_NORMAL, 1080 EXT_CSD_HS_TIMING, value, softc->cmd6_time); 1081 } else { 1082 err = mmc_sd_switch(periph, ccb, SD_SWITCH_MODE_SET, SD_SWITCH_GROUP1, value, switch_res); 1083 } 1084 1085 /* Set high-speed timing on the host */ 1086 struct ccb_trans_settings_mmc *cts; 1087 cts = &ccb->cts.proto_specific.mmc; 1088 ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1089 ccb->ccb_h.flags = CAM_DIR_NONE; 1090 ccb->ccb_h.retry_count = 0; 1091 ccb->ccb_h.timeout = 100; 1092 ccb->ccb_h.cbfcnp = NULL; 1093 cts->ios.timing = timing; 1094 cts->ios_valid = MMC_BT; 1095 xpt_action(ccb); 1096 1097 return (err); 1098 } 1099 1100 static void 1101 sdda_start_init_task(void *context, int pending) { 1102 union ccb *new_ccb; 1103 struct cam_periph *periph; 1104 1105 periph = (struct cam_periph *)context; 1106 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sdda_start_init_task\n")); 1107 new_ccb = xpt_alloc_ccb(); 1108 xpt_setup_ccb(&new_ccb->ccb_h, periph->path, 1109 CAM_PRIORITY_NONE); 1110 1111 cam_periph_lock(periph); 1112 sdda_start_init(context, new_ccb); 1113 cam_periph_unlock(periph); 1114 xpt_free_ccb(new_ccb); 1115 } 1116 1117 static void 1118 sdda_set_bus_width(struct cam_periph *periph, union ccb *ccb, int width) { 1119 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 1120 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1121 int err; 1122 1123 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sdda_set_bus_width\n")); 1124 1125 /* First set for the card, then for the host */ 1126 if (mmcp->card_features & CARD_FEATURE_MMC) { 1127 uint8_t value; 1128 switch (width) { 1129 case bus_width_1: 1130 value = EXT_CSD_BUS_WIDTH_1; 1131 break; 1132 case bus_width_4: 1133 value = EXT_CSD_BUS_WIDTH_4; 1134 break; 1135 case bus_width_8: 1136 value = EXT_CSD_BUS_WIDTH_8; 1137 break; 1138 default: 1139 panic("Invalid bus width %d", width); 1140 } 1141 err = mmc_switch(periph, ccb, EXT_CSD_CMD_SET_NORMAL, 1142 EXT_CSD_BUS_WIDTH, value, softc->cmd6_time); 1143 } else { 1144 /* For SD cards we send ACMD6 with the required bus width in arg */ 1145 struct mmc_command cmd; 1146 memset(&cmd, 0, sizeof(struct mmc_command)); 1147 cmd.opcode = ACMD_SET_BUS_WIDTH; 1148 cmd.arg = width; 1149 cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 1150 err = mmc_exec_app_cmd(periph, ccb, &cmd); 1151 } 1152 1153 if (err != MMC_ERR_NONE) { 1154 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Error %d when setting bus width on the card\n", err)); 1155 return; 1156 } 1157 /* Now card is done, set the host to the same width */ 1158 struct ccb_trans_settings_mmc *cts; 1159 cts = &ccb->cts.proto_specific.mmc; 1160 ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1161 ccb->ccb_h.flags = CAM_DIR_NONE; 1162 ccb->ccb_h.retry_count = 0; 1163 ccb->ccb_h.timeout = 100; 1164 ccb->ccb_h.cbfcnp = NULL; 1165 cts->ios.bus_width = width; 1166 cts->ios_valid = MMC_BW; 1167 xpt_action(ccb); 1168 } 1169 1170 static inline const char 1171 *part_type(u_int type) 1172 { 1173 1174 switch (type) { 1175 case EXT_CSD_PART_CONFIG_ACC_RPMB: 1176 return ("RPMB"); 1177 case EXT_CSD_PART_CONFIG_ACC_DEFAULT: 1178 return ("default"); 1179 case EXT_CSD_PART_CONFIG_ACC_BOOT0: 1180 return ("boot0"); 1181 case EXT_CSD_PART_CONFIG_ACC_BOOT1: 1182 return ("boot1"); 1183 case EXT_CSD_PART_CONFIG_ACC_GP0: 1184 case EXT_CSD_PART_CONFIG_ACC_GP1: 1185 case EXT_CSD_PART_CONFIG_ACC_GP2: 1186 case EXT_CSD_PART_CONFIG_ACC_GP3: 1187 return ("general purpose"); 1188 default: 1189 return ("(unknown type)"); 1190 } 1191 } 1192 1193 static inline const char 1194 *bus_width_str(enum mmc_bus_width w) 1195 { 1196 1197 switch (w) { 1198 case bus_width_1: 1199 return ("1-bit"); 1200 case bus_width_4: 1201 return ("4-bit"); 1202 case bus_width_8: 1203 return ("8-bit"); 1204 } 1205 } 1206 1207 static uint32_t 1208 sdda_get_host_caps(struct cam_periph *periph, union ccb *ccb) 1209 { 1210 struct ccb_trans_settings_mmc *cts; 1211 1212 cts = &ccb->cts.proto_specific.mmc; 1213 1214 ccb->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1215 ccb->ccb_h.flags = CAM_DIR_NONE; 1216 ccb->ccb_h.retry_count = 0; 1217 ccb->ccb_h.timeout = 100; 1218 ccb->ccb_h.cbfcnp = NULL; 1219 xpt_action(ccb); 1220 1221 if (ccb->ccb_h.status != CAM_REQ_CMP) 1222 panic("Cannot get host caps"); 1223 return (cts->host_caps); 1224 } 1225 1226 static uint32_t 1227 sdda_get_max_data(struct cam_periph *periph, union ccb *ccb) 1228 { 1229 struct ccb_trans_settings_mmc *cts; 1230 1231 cts = &ccb->cts.proto_specific.mmc; 1232 memset(cts, 0, sizeof(struct ccb_trans_settings_mmc)); 1233 1234 ccb->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1235 ccb->ccb_h.flags = CAM_DIR_NONE; 1236 ccb->ccb_h.retry_count = 0; 1237 ccb->ccb_h.timeout = 100; 1238 ccb->ccb_h.cbfcnp = NULL; 1239 xpt_action(ccb); 1240 1241 if (ccb->ccb_h.status != CAM_REQ_CMP) 1242 panic("Cannot get host max data"); 1243 KASSERT(cts->host_max_data != 0, ("host_max_data == 0?!")); 1244 return (cts->host_max_data); 1245 } 1246 1247 static void 1248 sdda_start_init(void *context, union ccb *start_ccb) 1249 { 1250 struct cam_periph *periph = (struct cam_periph *)context; 1251 struct ccb_trans_settings_mmc *cts; 1252 uint32_t host_caps; 1253 uint32_t sec_count; 1254 int err; 1255 int host_f_max; 1256 uint8_t card_type; 1257 1258 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sdda_start_init\n")); 1259 /* periph was held for us when this task was enqueued */ 1260 if ((periph->flags & CAM_PERIPH_INVALID) != 0) { 1261 cam_periph_release(periph); 1262 return; 1263 } 1264 1265 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 1266 //struct ccb_mmcio *mmcio = &start_ccb->mmcio; 1267 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1268 struct cam_ed *device = periph->path->device; 1269 1270 if (mmcp->card_features & CARD_FEATURE_MMC) { 1271 mmc_decode_csd_mmc(mmcp->card_csd, &softc->csd); 1272 mmc_decode_cid_mmc(mmcp->card_cid, &softc->cid); 1273 if (mmc_get_spec_vers(periph) >= 4) { 1274 err = mmc_send_ext_csd(periph, start_ccb, 1275 (uint8_t *)&softc->raw_ext_csd, 1276 sizeof(softc->raw_ext_csd)); 1277 if (err != 0) { 1278 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1279 ("Cannot read EXT_CSD, err %d", err)); 1280 return; 1281 } 1282 } 1283 } else { 1284 mmc_decode_csd_sd(mmcp->card_csd, &softc->csd); 1285 mmc_decode_cid_sd(mmcp->card_cid, &softc->cid); 1286 } 1287 1288 softc->sector_count = softc->csd.capacity / 512; 1289 softc->mediasize = softc->csd.capacity; 1290 softc->cmd6_time = mmc_get_cmd6_timeout(periph); 1291 1292 /* MMC >= 4.x have EXT_CSD that has its own opinion about capacity */ 1293 if (mmc_get_spec_vers(periph) >= 4) { 1294 sec_count = softc->raw_ext_csd[EXT_CSD_SEC_CNT] + 1295 (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 1] << 8) + 1296 (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 2] << 16) + 1297 (softc->raw_ext_csd[EXT_CSD_SEC_CNT + 3] << 24); 1298 if (sec_count != 0) { 1299 softc->sector_count = sec_count; 1300 softc->mediasize = softc->sector_count * 512; 1301 /* FIXME: there should be a better name for this option...*/ 1302 mmcp->card_features |= CARD_FEATURE_SDHC; 1303 } 1304 1305 } 1306 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1307 ("Capacity: %"PRIu64", sectors: %"PRIu64"\n", 1308 softc->mediasize, 1309 softc->sector_count)); 1310 mmc_format_card_id_string(softc, mmcp); 1311 1312 /* Update info for CAM */ 1313 device->serial_num_len = strlen(softc->card_sn_string); 1314 device->serial_num = (u_int8_t *)malloc((device->serial_num_len + 1), 1315 M_CAMXPT, M_NOWAIT); 1316 strlcpy(device->serial_num, softc->card_sn_string, device->serial_num_len); 1317 1318 device->device_id_len = strlen(softc->card_id_string); 1319 device->device_id = (u_int8_t *)malloc((device->device_id_len + 1), 1320 M_CAMXPT, M_NOWAIT); 1321 strlcpy(device->device_id, softc->card_id_string, device->device_id_len); 1322 1323 strlcpy(mmcp->model, softc->card_id_string, sizeof(mmcp->model)); 1324 1325 /* Set the clock frequency that the card can handle */ 1326 cts = &start_ccb->cts.proto_specific.mmc; 1327 1328 /* First, get the host's max freq */ 1329 start_ccb->ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1330 start_ccb->ccb_h.flags = CAM_DIR_NONE; 1331 start_ccb->ccb_h.retry_count = 0; 1332 start_ccb->ccb_h.timeout = 100; 1333 start_ccb->ccb_h.cbfcnp = NULL; 1334 xpt_action(start_ccb); 1335 1336 if (start_ccb->ccb_h.status != CAM_REQ_CMP) 1337 panic("Cannot get max host freq"); 1338 host_f_max = cts->host_f_max; 1339 host_caps = cts->host_caps; 1340 if (cts->ios.bus_width != bus_width_1) 1341 panic("Bus width in ios is not 1-bit"); 1342 1343 /* Now check if the card supports High-speed */ 1344 softc->card_f_max = softc->csd.tran_speed; 1345 1346 if (host_caps & MMC_CAP_HSPEED) { 1347 /* Find out if the card supports High speed timing */ 1348 if (mmcp->card_features & CARD_FEATURE_SD20) { 1349 /* Get and decode SCR */ 1350 uint32_t rawscr[2]; 1351 uint8_t res[64]; 1352 if (mmc_app_get_scr(periph, start_ccb, rawscr)) { 1353 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Cannot get SCR\n")); 1354 goto finish_hs_tests; 1355 } 1356 mmc_app_decode_scr(rawscr, &softc->scr); 1357 1358 if ((softc->scr.sda_vsn >= 1) && (softc->csd.ccc & (1<<10))) { 1359 mmc_sd_switch(periph, start_ccb, SD_SWITCH_MODE_CHECK, 1360 SD_SWITCH_GROUP1, SD_SWITCH_NOCHANGE, res); 1361 if (res[13] & 2) { 1362 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Card supports HS\n")); 1363 softc->card_f_max = SD_HS_MAX; 1364 } 1365 1366 /* 1367 * We deselect then reselect the card here. Some cards 1368 * become unselected and timeout with the above two 1369 * commands, although the state tables / diagrams in the 1370 * standard suggest they go back to the transfer state. 1371 * Other cards don't become deselected, and if we 1372 * attempt to blindly re-select them, we get timeout 1373 * errors from some controllers. So we deselect then 1374 * reselect to handle all situations. 1375 */ 1376 mmc_select_card(periph, start_ccb, 0); 1377 mmc_select_card(periph, start_ccb, get_rca(periph)); 1378 } else { 1379 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Not trying the switch\n")); 1380 goto finish_hs_tests; 1381 } 1382 } 1383 1384 if (mmcp->card_features & CARD_FEATURE_MMC && mmc_get_spec_vers(periph) >= 4) { 1385 card_type = softc->raw_ext_csd[EXT_CSD_CARD_TYPE]; 1386 if (card_type & EXT_CSD_CARD_TYPE_HS_52) 1387 softc->card_f_max = MMC_TYPE_HS_52_MAX; 1388 else if (card_type & EXT_CSD_CARD_TYPE_HS_26) 1389 softc->card_f_max = MMC_TYPE_HS_26_MAX; 1390 if ((card_type & EXT_CSD_CARD_TYPE_DDR_52_1_2V) != 0 && 1391 (host_caps & MMC_CAP_SIGNALING_120) != 0) { 1392 setbit(&softc->timings, bus_timing_mmc_ddr52); 1393 setbit(&softc->vccq_120, bus_timing_mmc_ddr52); 1394 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Card supports DDR52 at 1.2V\n")); 1395 } 1396 if ((card_type & EXT_CSD_CARD_TYPE_DDR_52_1_8V) != 0 && 1397 (host_caps & MMC_CAP_SIGNALING_180) != 0) { 1398 setbit(&softc->timings, bus_timing_mmc_ddr52); 1399 setbit(&softc->vccq_180, bus_timing_mmc_ddr52); 1400 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Card supports DDR52 at 1.8V\n")); 1401 } 1402 if ((card_type & EXT_CSD_CARD_TYPE_HS200_1_2V) != 0 && 1403 (host_caps & MMC_CAP_SIGNALING_120) != 0) { 1404 setbit(&softc->timings, bus_timing_mmc_hs200); 1405 setbit(&softc->vccq_120, bus_timing_mmc_hs200); 1406 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Card supports HS200 at 1.2V\n")); 1407 } 1408 if ((card_type & EXT_CSD_CARD_TYPE_HS200_1_8V) != 0 && 1409 (host_caps & MMC_CAP_SIGNALING_180) != 0) { 1410 setbit(&softc->timings, bus_timing_mmc_hs200); 1411 setbit(&softc->vccq_180, bus_timing_mmc_hs200); 1412 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, ("Card supports HS200 at 1.8V\n")); 1413 } 1414 } 1415 } 1416 int f_max; 1417 finish_hs_tests: 1418 f_max = min(host_f_max, softc->card_f_max); 1419 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)); 1420 1421 /* Enable high-speed timing on the card */ 1422 if (f_max > 25000000) { 1423 err = mmc_set_timing(periph, start_ccb, bus_timing_hs); 1424 if (err != MMC_ERR_NONE) { 1425 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("Cannot switch card to high-speed mode")); 1426 f_max = 25000000; 1427 } 1428 } 1429 /* If possible, set lower-level signaling */ 1430 enum mmc_bus_timing timing; 1431 /* FIXME: MMCCAM supports max. bus_timing_mmc_ddr52 at the moment. */ 1432 for (timing = bus_timing_mmc_ddr52; timing > bus_timing_normal; timing--) { 1433 if (isset(&softc->vccq_120, timing)) { 1434 /* Set VCCQ = 1.2V */ 1435 start_ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1436 start_ccb->ccb_h.flags = CAM_DIR_NONE; 1437 start_ccb->ccb_h.retry_count = 0; 1438 start_ccb->ccb_h.timeout = 100; 1439 start_ccb->ccb_h.cbfcnp = NULL; 1440 cts->ios.vccq = vccq_120; 1441 cts->ios_valid = MMC_VCCQ; 1442 xpt_action(start_ccb); 1443 break; 1444 } else if (isset(&softc->vccq_180, timing)) { 1445 /* Set VCCQ = 1.8V */ 1446 start_ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1447 start_ccb->ccb_h.flags = CAM_DIR_NONE; 1448 start_ccb->ccb_h.retry_count = 0; 1449 start_ccb->ccb_h.timeout = 100; 1450 start_ccb->ccb_h.cbfcnp = NULL; 1451 cts->ios.vccq = vccq_180; 1452 cts->ios_valid = MMC_VCCQ; 1453 xpt_action(start_ccb); 1454 break; 1455 } else { 1456 /* Set VCCQ = 3.3V */ 1457 start_ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1458 start_ccb->ccb_h.flags = CAM_DIR_NONE; 1459 start_ccb->ccb_h.retry_count = 0; 1460 start_ccb->ccb_h.timeout = 100; 1461 start_ccb->ccb_h.cbfcnp = NULL; 1462 cts->ios.vccq = vccq_330; 1463 cts->ios_valid = MMC_VCCQ; 1464 xpt_action(start_ccb); 1465 break; 1466 } 1467 } 1468 1469 /* Set frequency on the controller */ 1470 start_ccb->ccb_h.func_code = XPT_SET_TRAN_SETTINGS; 1471 start_ccb->ccb_h.flags = CAM_DIR_NONE; 1472 start_ccb->ccb_h.retry_count = 0; 1473 start_ccb->ccb_h.timeout = 100; 1474 start_ccb->ccb_h.cbfcnp = NULL; 1475 cts->ios.clock = f_max; 1476 cts->ios_valid = MMC_CLK; 1477 xpt_action(start_ccb); 1478 1479 /* Set bus width */ 1480 enum mmc_bus_width desired_bus_width = bus_width_1; 1481 enum mmc_bus_width max_host_bus_width = 1482 (host_caps & MMC_CAP_8_BIT_DATA ? bus_width_8 : 1483 host_caps & MMC_CAP_4_BIT_DATA ? bus_width_4 : bus_width_1); 1484 enum mmc_bus_width max_card_bus_width = bus_width_1; 1485 if (mmcp->card_features & CARD_FEATURE_SD20 && 1486 softc->scr.bus_widths & SD_SCR_BUS_WIDTH_4) 1487 max_card_bus_width = bus_width_4; 1488 /* 1489 * Unlike SD, MMC cards don't have any information about supported bus width... 1490 * So we need to perform read/write test to find out the width. 1491 */ 1492 /* TODO: figure out bus width for MMC; use 8-bit for now (to test on BBB) */ 1493 if (mmcp->card_features & CARD_FEATURE_MMC) 1494 max_card_bus_width = bus_width_8; 1495 1496 desired_bus_width = min(max_host_bus_width, max_card_bus_width); 1497 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1498 ("Set bus width to %s (min of host %s and card %s)\n", 1499 bus_width_str(desired_bus_width), 1500 bus_width_str(max_host_bus_width), 1501 bus_width_str(max_card_bus_width))); 1502 sdda_set_bus_width(periph, start_ccb, desired_bus_width); 1503 1504 softc->state = SDDA_STATE_NORMAL; 1505 1506 /* MMC partitions support */ 1507 if (mmcp->card_features & CARD_FEATURE_MMC && mmc_get_spec_vers(periph) >= 4) { 1508 sdda_process_mmc_partitions(periph, start_ccb); 1509 } else if (mmcp->card_features & CARD_FEATURE_SD20) { 1510 /* For SD[HC] cards, just add one partition that is the whole card */ 1511 sdda_add_part(periph, 0, "sdda", 1512 periph->unit_number, 1513 mmc_get_media_size(periph), 1514 sdda_get_read_only(periph, start_ccb)); 1515 softc->part_curr = 0; 1516 } 1517 1518 xpt_announce_periph(periph, softc->card_id_string); 1519 /* 1520 * Add async callbacks for bus reset and bus device reset calls. 1521 * I don't bother checking if this fails as, in most cases, 1522 * the system will function just fine without them and the only 1523 * alternative would be to not attach the device on failure. 1524 */ 1525 xpt_register_async(AC_LOST_DEVICE | AC_GETDEV_CHANGED | 1526 AC_ADVINFO_CHANGED, sddaasync, periph, periph->path); 1527 } 1528 1529 static void 1530 sdda_add_part(struct cam_periph *periph, u_int type, const char *name, 1531 u_int cnt, off_t media_size, bool ro) 1532 { 1533 struct sdda_softc *sc = (struct sdda_softc *)periph->softc; 1534 struct sdda_part *part; 1535 struct ccb_pathinq cpi; 1536 1537 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1538 ("Partition type '%s', size %ju %s\n", 1539 part_type(type), 1540 media_size, 1541 ro ? "(read-only)" : "")); 1542 1543 part = sc->part[type] = malloc(sizeof(*part), M_DEVBUF, 1544 M_WAITOK | M_ZERO); 1545 1546 part->cnt = cnt; 1547 part->type = type; 1548 part->ro = ro; 1549 part->sc = sc; 1550 snprintf(part->name, sizeof(part->name), name, periph->unit_number); 1551 1552 /* 1553 * Due to the nature of RPMB partition it doesn't make much sense 1554 * to add it as a disk. It would be more appropriate to create a 1555 * userland tool to operate on the partition or leverage the existing 1556 * tools from sysutils/mmc-utils. 1557 */ 1558 if (type == EXT_CSD_PART_CONFIG_ACC_RPMB) { 1559 /* TODO: Create device, assign IOCTL handler */ 1560 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1561 ("Don't know what to do with RPMB partitions yet\n")); 1562 return; 1563 } 1564 1565 bioq_init(&part->bio_queue); 1566 1567 bzero(&cpi, sizeof(cpi)); 1568 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE); 1569 cpi.ccb_h.func_code = XPT_PATH_INQ; 1570 xpt_action((union ccb *)&cpi); 1571 1572 /* 1573 * Register this media as a disk 1574 */ 1575 (void)cam_periph_hold(periph, PRIBIO); 1576 cam_periph_unlock(periph); 1577 1578 part->disk = disk_alloc(); 1579 part->disk->d_rotation_rate = DISK_RR_NON_ROTATING; 1580 part->disk->d_devstat = devstat_new_entry(part->name, 1581 cnt, 512, 1582 DEVSTAT_ALL_SUPPORTED, 1583 DEVSTAT_TYPE_DIRECT | XPORT_DEVSTAT_TYPE(cpi.transport), 1584 DEVSTAT_PRIORITY_DISK); 1585 1586 part->disk->d_open = sddaopen; 1587 part->disk->d_close = sddaclose; 1588 part->disk->d_strategy = sddastrategy; 1589 part->disk->d_getattr = sddagetattr; 1590 // sc->disk->d_dump = sddadump; 1591 part->disk->d_gone = sddadiskgonecb; 1592 part->disk->d_name = part->name; 1593 part->disk->d_drv1 = part; 1594 part->disk->d_maxsize = 1595 MIN(MAXPHYS, sdda_get_max_data(periph, 1596 (union ccb *)&cpi) * mmc_get_sector_size(periph)); 1597 part->disk->d_unit = cnt; 1598 part->disk->d_flags = 0; 1599 strlcpy(part->disk->d_descr, sc->card_id_string, 1600 MIN(sizeof(part->disk->d_descr), sizeof(sc->card_id_string))); 1601 strlcpy(part->disk->d_ident, sc->card_sn_string, 1602 MIN(sizeof(part->disk->d_ident), sizeof(sc->card_sn_string))); 1603 part->disk->d_hba_vendor = cpi.hba_vendor; 1604 part->disk->d_hba_device = cpi.hba_device; 1605 part->disk->d_hba_subvendor = cpi.hba_subvendor; 1606 part->disk->d_hba_subdevice = cpi.hba_subdevice; 1607 snprintf(part->disk->d_attachment, sizeof(part->disk->d_attachment), 1608 "%s%d", cpi.dev_name, cpi.unit_number); 1609 1610 part->disk->d_sectorsize = mmc_get_sector_size(periph); 1611 part->disk->d_mediasize = media_size; 1612 part->disk->d_stripesize = 0; 1613 part->disk->d_fwsectors = 0; 1614 part->disk->d_fwheads = 0; 1615 1616 if (sdda_mmcsd_compat) 1617 disk_add_alias(part->disk, "mmcsd"); 1618 1619 /* 1620 * Acquire a reference to the periph before we register with GEOM. 1621 * We'll release this reference once GEOM calls us back (via 1622 * sddadiskgonecb()) telling us that our provider has been freed. 1623 */ 1624 if (cam_periph_acquire(periph) != 0) { 1625 xpt_print(periph->path, "%s: lost periph during " 1626 "registration!\n", __func__); 1627 cam_periph_lock(periph); 1628 return; 1629 } 1630 disk_create(part->disk, DISK_VERSION); 1631 cam_periph_lock(periph); 1632 cam_periph_unhold(periph); 1633 } 1634 1635 /* 1636 * For MMC cards, process EXT_CSD and add partitions that are supported by 1637 * this device. 1638 */ 1639 static void 1640 sdda_process_mmc_partitions(struct cam_periph *periph, union ccb *ccb) 1641 { 1642 struct sdda_softc *sc = (struct sdda_softc *)periph->softc; 1643 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1644 off_t erase_size, sector_size, size, wp_size; 1645 int i; 1646 const uint8_t *ext_csd; 1647 uint8_t rev; 1648 bool comp, ro; 1649 1650 ext_csd = sc->raw_ext_csd; 1651 1652 /* 1653 * Enhanced user data area and general purpose partitions are only 1654 * supported in revision 1.4 (EXT_CSD_REV == 4) and later, the RPMB 1655 * partition in revision 1.5 (MMC v4.41, EXT_CSD_REV == 5) and later. 1656 */ 1657 rev = ext_csd[EXT_CSD_REV]; 1658 1659 /* 1660 * Ignore user-creatable enhanced user data area and general purpose 1661 * partitions partitions as long as partitioning hasn't been finished. 1662 */ 1663 comp = (ext_csd[EXT_CSD_PART_SET] & EXT_CSD_PART_SET_COMPLETED) != 0; 1664 1665 /* 1666 * Add enhanced user data area slice, unless it spans the entirety of 1667 * the user data area. The enhanced area is of a multiple of high 1668 * capacity write protect groups ((ERASE_GRP_SIZE + HC_WP_GRP_SIZE) * 1669 * 512 KB) and its offset given in either sectors or bytes, depending 1670 * on whether it's a high capacity device or not. 1671 * NB: The slicer and its slices need to be registered before adding 1672 * the disk for the corresponding user data area as re-tasting is 1673 * racy. 1674 */ 1675 sector_size = mmc_get_sector_size(periph); 1676 size = ext_csd[EXT_CSD_ENH_SIZE_MULT] + 1677 (ext_csd[EXT_CSD_ENH_SIZE_MULT + 1] << 8) + 1678 (ext_csd[EXT_CSD_ENH_SIZE_MULT + 2] << 16); 1679 if (rev >= 4 && comp == TRUE && size > 0 && 1680 (ext_csd[EXT_CSD_PART_SUPPORT] & 1681 EXT_CSD_PART_SUPPORT_ENH_ATTR_EN) != 0 && 1682 (ext_csd[EXT_CSD_PART_ATTR] & (EXT_CSD_PART_ATTR_ENH_USR)) != 0) { 1683 erase_size = ext_csd[EXT_CSD_ERASE_GRP_SIZE] * 1024 * 1684 MMC_SECTOR_SIZE; 1685 wp_size = ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; 1686 size *= erase_size * wp_size; 1687 if (size != mmc_get_media_size(periph) * sector_size) { 1688 sc->enh_size = size; 1689 sc->enh_base = (ext_csd[EXT_CSD_ENH_START_ADDR] + 1690 (ext_csd[EXT_CSD_ENH_START_ADDR + 1] << 8) + 1691 (ext_csd[EXT_CSD_ENH_START_ADDR + 2] << 16) + 1692 (ext_csd[EXT_CSD_ENH_START_ADDR + 3] << 24)) * 1693 ((mmcp->card_features & CARD_FEATURE_SDHC) ? 1: MMC_SECTOR_SIZE); 1694 } else 1695 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1696 ("enhanced user data area spans entire device")); 1697 } 1698 1699 /* 1700 * Add default partition. This may be the only one or the user 1701 * data area in case partitions are supported. 1702 */ 1703 ro = sdda_get_read_only(periph, ccb); 1704 sdda_add_part(periph, EXT_CSD_PART_CONFIG_ACC_DEFAULT, "sdda", 1705 periph->unit_number, mmc_get_media_size(periph), ro); 1706 sc->part_curr = EXT_CSD_PART_CONFIG_ACC_DEFAULT; 1707 1708 if (mmc_get_spec_vers(periph) < 3) 1709 return; 1710 1711 /* Belatedly announce enhanced user data slice. */ 1712 if (sc->enh_size != 0) { 1713 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1714 ("enhanced user data area off 0x%jx size %ju bytes\n", 1715 sc->enh_base, sc->enh_size)); 1716 } 1717 1718 /* 1719 * Determine partition switch timeout (provided in units of 10 ms) 1720 * and ensure it's at least 300 ms as some eMMC chips lie. 1721 */ 1722 sc->part_time = max(ext_csd[EXT_CSD_PART_SWITCH_TO] * 10 * 1000, 1723 300 * 1000); 1724 1725 /* Add boot partitions, which are of a fixed multiple of 128 KB. */ 1726 size = ext_csd[EXT_CSD_BOOT_SIZE_MULT] * MMC_BOOT_RPMB_BLOCK_SIZE; 1727 if (size > 0 && (sdda_get_host_caps(periph, ccb) & MMC_CAP_BOOT_NOACC) == 0) { 1728 sdda_add_part(periph, EXT_CSD_PART_CONFIG_ACC_BOOT0, 1729 SDDA_FMT_BOOT, 0, size, 1730 ro | ((ext_csd[EXT_CSD_BOOT_WP_STATUS] & 1731 EXT_CSD_BOOT_WP_STATUS_BOOT0_MASK) != 0)); 1732 sdda_add_part(periph, EXT_CSD_PART_CONFIG_ACC_BOOT1, 1733 SDDA_FMT_BOOT, 1, size, 1734 ro | ((ext_csd[EXT_CSD_BOOT_WP_STATUS] & 1735 EXT_CSD_BOOT_WP_STATUS_BOOT1_MASK) != 0)); 1736 } 1737 1738 /* Add RPMB partition, which also is of a fixed multiple of 128 KB. */ 1739 size = ext_csd[EXT_CSD_RPMB_MULT] * MMC_BOOT_RPMB_BLOCK_SIZE; 1740 if (rev >= 5 && size > 0) 1741 sdda_add_part(periph, EXT_CSD_PART_CONFIG_ACC_RPMB, 1742 SDDA_FMT_RPMB, 0, size, ro); 1743 1744 if (rev <= 3 || comp == FALSE) 1745 return; 1746 1747 /* 1748 * Add general purpose partitions, which are of a multiple of high 1749 * capacity write protect groups, too. 1750 */ 1751 if ((ext_csd[EXT_CSD_PART_SUPPORT] & EXT_CSD_PART_SUPPORT_EN) != 0) { 1752 erase_size = ext_csd[EXT_CSD_ERASE_GRP_SIZE] * 1024 * 1753 MMC_SECTOR_SIZE; 1754 wp_size = ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; 1755 for (i = 0; i < MMC_PART_GP_MAX; i++) { 1756 size = ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3] + 1757 (ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3 + 1] << 8) + 1758 (ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3 + 2] << 16); 1759 if (size == 0) 1760 continue; 1761 sdda_add_part(periph, EXT_CSD_PART_CONFIG_ACC_GP0 + i, 1762 SDDA_FMT_GP, i, size * erase_size * wp_size, ro); 1763 } 1764 } 1765 } 1766 1767 /* 1768 * We cannot just call mmc_switch() since it will sleep, and we are in 1769 * GEOM context and cannot sleep. Instead, create an MMCIO request to switch 1770 * partitions and send it to h/w, and upon completion resume processing 1771 * the I/O queue. 1772 * This function cannot fail, instead check switch errors in sddadone(). 1773 */ 1774 static void 1775 sdda_init_switch_part(struct cam_periph *periph, union ccb *start_ccb, u_int part) { 1776 struct sdda_softc *sc = (struct sdda_softc *)periph->softc; 1777 uint8_t value; 1778 1779 sc->part_requested = part; 1780 1781 value = (sc->raw_ext_csd[EXT_CSD_PART_CONFIG] & 1782 ~EXT_CSD_PART_CONFIG_ACC_MASK) | part; 1783 1784 mmc_switch_fill_mmcio(start_ccb, EXT_CSD_CMD_SET_NORMAL, 1785 EXT_CSD_PART_CONFIG, value, sc->part_time); 1786 start_ccb->ccb_h.cbfcnp = sddadone; 1787 1788 sc->outstanding_cmds++; 1789 cam_periph_unlock(periph); 1790 xpt_action(start_ccb); 1791 cam_periph_lock(periph); 1792 } 1793 1794 /* Called with periph lock held! */ 1795 static void 1796 sddastart(struct cam_periph *periph, union ccb *start_ccb) 1797 { 1798 struct bio *bp; 1799 struct sdda_softc *softc = (struct sdda_softc *)periph->softc; 1800 struct sdda_part *part; 1801 struct mmc_params *mmcp = &periph->path->device->mmc_ident_data; 1802 int part_index; 1803 1804 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sddastart\n")); 1805 1806 if (softc->state != SDDA_STATE_NORMAL) { 1807 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("device is not in SDDA_STATE_NORMAL yet\n")); 1808 xpt_release_ccb(start_ccb); 1809 return; 1810 } 1811 1812 /* Find partition that has outstanding commands. Prefer current partition. */ 1813 part = softc->part[softc->part_curr]; 1814 bp = bioq_first(&part->bio_queue); 1815 if (bp == NULL) { 1816 for (part_index = 0; part_index < MMC_PART_MAX; part_index++) { 1817 if ((part = softc->part[part_index]) != NULL && 1818 (bp = bioq_first(&softc->part[part_index]->bio_queue)) != NULL) 1819 break; 1820 } 1821 } 1822 if (bp == NULL) { 1823 xpt_release_ccb(start_ccb); 1824 return; 1825 } 1826 if (part_index != softc->part_curr) { 1827 CAM_DEBUG(periph->path, CAM_DEBUG_PERIPH, 1828 ("Partition %d -> %d\n", softc->part_curr, part_index)); 1829 /* 1830 * According to section "6.2.2 Command restrictions" of the eMMC 1831 * specification v5.1, CMD19/CMD21 aren't allowed to be used with 1832 * RPMB partitions. So we pause re-tuning along with triggering 1833 * it up-front to decrease the likelihood of re-tuning becoming 1834 * necessary while accessing an RPMB partition. Consequently, an 1835 * RPMB partition should immediately be switched away from again 1836 * after an access in order to allow for re-tuning to take place 1837 * anew. 1838 */ 1839 /* TODO: pause retune if switching to RPMB partition */ 1840 softc->state = SDDA_STATE_PART_SWITCH; 1841 sdda_init_switch_part(periph, start_ccb, part_index); 1842 return; 1843 } 1844 1845 bioq_remove(&part->bio_queue, bp); 1846 1847 switch (bp->bio_cmd) { 1848 case BIO_WRITE: 1849 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_WRITE\n")); 1850 part->flags |= SDDA_FLAG_DIRTY; 1851 /* FALLTHROUGH */ 1852 case BIO_READ: 1853 { 1854 struct ccb_mmcio *mmcio; 1855 uint64_t blockno = bp->bio_pblkno; 1856 uint16_t count = bp->bio_bcount / 512; 1857 uint16_t opcode; 1858 1859 if (bp->bio_cmd == BIO_READ) 1860 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_READ\n")); 1861 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 1862 ("Block %"PRIu64" cnt %u\n", blockno, count)); 1863 1864 /* Construct new MMC command */ 1865 if (bp->bio_cmd == BIO_READ) { 1866 if (count > 1) 1867 opcode = MMC_READ_MULTIPLE_BLOCK; 1868 else 1869 opcode = MMC_READ_SINGLE_BLOCK; 1870 } else { 1871 if (count > 1) 1872 opcode = MMC_WRITE_MULTIPLE_BLOCK; 1873 else 1874 opcode = MMC_WRITE_BLOCK; 1875 } 1876 1877 start_ccb->ccb_h.func_code = XPT_MMC_IO; 1878 start_ccb->ccb_h.flags = (bp->bio_cmd == BIO_READ ? CAM_DIR_IN : CAM_DIR_OUT); 1879 start_ccb->ccb_h.retry_count = 0; 1880 start_ccb->ccb_h.timeout = 15 * 1000; 1881 start_ccb->ccb_h.cbfcnp = sddadone; 1882 1883 mmcio = &start_ccb->mmcio; 1884 mmcio->cmd.opcode = opcode; 1885 mmcio->cmd.arg = blockno; 1886 if (!(mmcp->card_features & CARD_FEATURE_SDHC)) 1887 mmcio->cmd.arg <<= 9; 1888 1889 mmcio->cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; 1890 mmcio->cmd.data = softc->mmcdata; 1891 memset(mmcio->cmd.data, 0, sizeof(struct mmc_data)); 1892 mmcio->cmd.data->data = bp->bio_data; 1893 mmcio->cmd.data->len = 512 * count; 1894 mmcio->cmd.data->flags = (bp->bio_cmd == BIO_READ ? MMC_DATA_READ : MMC_DATA_WRITE); 1895 /* Direct h/w to issue CMD12 upon completion */ 1896 if (count > 1) { 1897 mmcio->cmd.data->flags |= MMC_DATA_MULTI; 1898 mmcio->stop.opcode = MMC_STOP_TRANSMISSION; 1899 mmcio->stop.flags = MMC_RSP_R1B | MMC_CMD_AC; 1900 mmcio->stop.arg = 0; 1901 } 1902 1903 break; 1904 } 1905 case BIO_FLUSH: 1906 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_FLUSH\n")); 1907 sddaschedule(periph); 1908 break; 1909 case BIO_DELETE: 1910 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("BIO_DELETE\n")); 1911 sddaschedule(periph); 1912 break; 1913 default: 1914 biofinish(bp, NULL, EOPNOTSUPP); 1915 xpt_release_ccb(start_ccb); 1916 return; 1917 } 1918 start_ccb->ccb_h.ccb_bp = bp; 1919 softc->outstanding_cmds++; 1920 softc->refcount++; 1921 cam_periph_unlock(periph); 1922 xpt_action(start_ccb); 1923 cam_periph_lock(periph); 1924 1925 /* May have more work to do, so ensure we stay scheduled */ 1926 sddaschedule(periph); 1927 } 1928 1929 static void 1930 sddadone(struct cam_periph *periph, union ccb *done_ccb) 1931 { 1932 struct bio *bp; 1933 struct sdda_softc *softc; 1934 struct ccb_mmcio *mmcio; 1935 struct cam_path *path; 1936 uint32_t card_status; 1937 int error = 0; 1938 1939 softc = (struct sdda_softc *)periph->softc; 1940 mmcio = &done_ccb->mmcio; 1941 path = done_ccb->ccb_h.path; 1942 1943 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("sddadone\n")); 1944 // cam_periph_lock(periph); 1945 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1946 CAM_DEBUG(path, CAM_DEBUG_TRACE, ("Error!!!\n")); 1947 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1948 cam_release_devq(path, 1949 /*relsim_flags*/0, 1950 /*reduction*/0, 1951 /*timeout*/0, 1952 /*getcount_only*/0); 1953 error = 5; /* EIO */ 1954 } else { 1955 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1956 panic("REQ_CMP with QFRZN"); 1957 error = 0; 1958 } 1959 1960 card_status = mmcio->cmd.resp[0]; 1961 CAM_DEBUG(path, CAM_DEBUG_TRACE, 1962 ("Card status: %08x\n", R1_STATUS(card_status))); 1963 CAM_DEBUG(path, CAM_DEBUG_TRACE, 1964 ("Current state: %d\n", R1_CURRENT_STATE(card_status))); 1965 1966 /* Process result of switching MMC partitions */ 1967 if (softc->state == SDDA_STATE_PART_SWITCH) { 1968 CAM_DEBUG(path, CAM_DEBUG_TRACE, 1969 ("Compteting partition switch to %d\n", softc->part_requested)); 1970 softc->outstanding_cmds--; 1971 /* Complete partition switch */ 1972 softc->state = SDDA_STATE_NORMAL; 1973 if (error != MMC_ERR_NONE) { 1974 /* TODO: Unpause retune if accessing RPMB */ 1975 xpt_release_ccb(done_ccb); 1976 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1977 return; 1978 } 1979 1980 softc->raw_ext_csd[EXT_CSD_PART_CONFIG] = 1981 (softc->raw_ext_csd[EXT_CSD_PART_CONFIG] & 1982 ~EXT_CSD_PART_CONFIG_ACC_MASK) | softc->part_requested; 1983 /* TODO: Unpause retune if accessing RPMB */ 1984 softc->part_curr = softc->part_requested; 1985 xpt_release_ccb(done_ccb); 1986 1987 /* Return to processing BIO requests */ 1988 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1989 return; 1990 } 1991 1992 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1993 bp->bio_error = error; 1994 if (error != 0) { 1995 bp->bio_resid = bp->bio_bcount; 1996 bp->bio_flags |= BIO_ERROR; 1997 } else { 1998 /* XXX: How many bytes remaining? */ 1999 bp->bio_resid = 0; 2000 if (bp->bio_resid > 0) 2001 bp->bio_flags |= BIO_ERROR; 2002 } 2003 2004 softc->outstanding_cmds--; 2005 xpt_release_ccb(done_ccb); 2006 /* 2007 * Release the periph refcount taken in sddastart() for each CCB. 2008 */ 2009 KASSERT(softc->refcount >= 1, ("sddadone softc %p refcount %d", softc, softc->refcount)); 2010 softc->refcount--; 2011 biodone(bp); 2012 } 2013 2014 static int 2015 sddaerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 2016 { 2017 return(cam_periph_error(ccb, cam_flags, sense_flags)); 2018 } 2019 #endif /* _KERNEL */ 2020