1163516Simp/*- 2163516Simp * Copyright (c) 2006 Bernd Walter. All rights reserved. 3163516Simp * Copyright (c) 2006 M. Warner Losh. All rights reserved. 4318197Smarius * Copyright (c) 2017 Marius Strobl <marius@FreeBSD.org> 5163516Simp * 6163516Simp * Redistribution and use in source and binary forms, with or without 7163516Simp * modification, are permitted provided that the following conditions 8163516Simp * are met: 9163516Simp * 1. Redistributions of source code must retain the above copyright 10163516Simp * notice, this list of conditions and the following disclaimer. 11163516Simp * 2. Redistributions in binary form must reproduce the above copyright 12163516Simp * notice, this list of conditions and the following disclaimer in the 13163516Simp * documentation and/or other materials provided with the distribution. 14163516Simp * 15163516Simp * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16163516Simp * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17163516Simp * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18163516Simp * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19163516Simp * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20163516Simp * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21163516Simp * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22163516Simp * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23163516Simp * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24163516Simp * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25170002Simp * 26170002Simp * Portions of this software may have been developed with reference to 27170002Simp * the SD Simplified Specification. The following disclaimer may apply: 28170002Simp * 29170002Simp * The following conditions apply to the release of the simplified 30170002Simp * specification ("Simplified Specification") by the SD Card Association and 31170002Simp * the SD Group. The Simplified Specification is a subset of the complete SD 32170002Simp * Specification which is owned by the SD Card Association and the SD 33170002Simp * Group. This Simplified Specification is provided on a non-confidential 34170002Simp * basis subject to the disclaimers below. Any implementation of the 35170002Simp * Simplified Specification may require a license from the SD Card 36170002Simp * Association, SD Group, SD-3C LLC or other third parties. 37170002Simp * 38170002Simp * Disclaimers: 39170002Simp * 40170002Simp * The information contained in the Simplified Specification is presented only 41170002Simp * as a standard specification for SD Cards and SD Host/Ancillary products and 42170002Simp * is provided "AS-IS" without any representations or warranties of any 43170002Simp * kind. No responsibility is assumed by the SD Group, SD-3C LLC or the SD 44170002Simp * Card Association for any damages, any infringements of patents or other 45170002Simp * right of the SD Group, SD-3C LLC, the SD Card Association or any third 46170002Simp * parties, which may result from its use. No license is granted by 47170002Simp * implication, estoppel or otherwise under any patent or other rights of the 48170002Simp * SD Group, SD-3C LLC, the SD Card Association or any third party. Nothing 49170002Simp * herein shall be construed as an obligation by the SD Group, the SD-3C LLC 50170002Simp * or the SD Card Association to disclose or distribute any technical 51170002Simp * information, know-how or other confidential information to any third party. 52163516Simp */ 53163516Simp 54163516Simp#include <sys/cdefs.h> 55163516Simp__FBSDID("$FreeBSD: stable/11/sys/dev/mmc/mmcsd.c 338637 2018-09-13 10:18:47Z marius $"); 56163516Simp 57163516Simp#include <sys/param.h> 58163516Simp#include <sys/systm.h> 59163516Simp#include <sys/bio.h> 60163516Simp#include <sys/bus.h> 61163516Simp#include <sys/conf.h> 62338637Smarius#include <sys/endian.h> 63318197Smarius#include <sys/fcntl.h> 64318197Smarius#include <sys/ioccom.h> 65163516Simp#include <sys/kernel.h> 66163516Simp#include <sys/kthread.h> 67163516Simp#include <sys/lock.h> 68163516Simp#include <sys/malloc.h> 69163516Simp#include <sys/module.h> 70163516Simp#include <sys/mutex.h> 71333768Smarius#include <sys/priv.h> 72318197Smarius#include <sys/slicer.h> 73338637Smarius#include <sys/sysctl.h> 74277026Sian#include <sys/time.h> 75318197Smarius 76295707Simp#include <geom/geom.h> 77163516Simp#include <geom/geom_disk.h> 78163516Simp 79318197Smarius#include <dev/mmc/bridge.h> 80318197Smarius#include <dev/mmc/mmc_ioctl.h> 81318197Smarius#include <dev/mmc/mmc_subr.h> 82234524Smarius#include <dev/mmc/mmcbrvar.h> 83234524Smarius#include <dev/mmc/mmcreg.h> 84163516Simp#include <dev/mmc/mmcvar.h> 85163516Simp 86163516Simp#include "mmcbus_if.h" 87163516Simp 88234524Smarius#if __FreeBSD_version < 800002 89234524Smarius#define kproc_create kthread_create 90234524Smarius#define kproc_exit kthread_exit 91234524Smarius#endif 92234524Smarius 93318197Smarius#define MMCSD_CMD_RETRIES 5 94318197Smarius 95318197Smarius#define MMCSD_FMT_BOOT "mmcsd%dboot" 96318197Smarius#define MMCSD_FMT_GP "mmcsd%dgp" 97318197Smarius#define MMCSD_FMT_RPMB "mmcsd%drpmb" 98318197Smarius#define MMCSD_LABEL_ENH "enh" 99318197Smarius 100318197Smarius#define MMCSD_PART_NAMELEN (16 + 1) 101318197Smarius 102318197Smariusstruct mmcsd_softc; 103318197Smarius 104318197Smariusstruct mmcsd_part { 105322119Smarius struct mtx disk_mtx; 106322119Smarius struct mtx ioctl_mtx; 107318197Smarius struct mmcsd_softc *sc; 108163516Simp struct disk *disk; 109163516Simp struct proc *p; 110163516Simp struct bio_queue_head bio_queue; 111184034Smav daddr_t eblock, eend; /* Range remaining after the last erase. */ 112318197Smarius u_int cnt; 113318197Smarius u_int type; 114169567Simp int running; 115185721Smav int suspend; 116322119Smarius int ioctl; 117318197Smarius bool ro; 118318197Smarius char name[MMCSD_PART_NAMELEN]; 119318197Smarius}; 120318197Smarius 121318197Smariusstruct mmcsd_softc { 122318197Smarius device_t dev; 123322119Smarius device_t mmcbus; 124318197Smarius struct mmcsd_part *part[MMC_PART_MAX]; 125318197Smarius enum mmc_card_mode mode; 126322119Smarius u_int max_data; /* Maximum data size [blocks] */ 127322119Smarius u_int erase_sector; /* Device native erase sector size [blocks] */ 128322119Smarius uint8_t high_cap; /* High Capacity device (block addressed) */ 129318197Smarius uint8_t part_curr; /* Partition currently switched to */ 130318197Smarius uint8_t ext_csd[MMC_EXTCSD_SIZE]; 131318197Smarius uint16_t rca; 132322388Smarius uint32_t flags; 133322388Smarius#define MMCSD_INAND_CMD38 0x0001 134322388Smarius#define MMCSD_USE_TRIM 0x0002 135338637Smarius#define MMCSD_FLUSH_CACHE 0x0004 136338637Smarius#define MMCSD_DIRTY 0x0008 137322388Smarius uint32_t cmd6_time; /* Generic switch timeout [us] */ 138318197Smarius uint32_t part_time; /* Partition switch timeout [us] */ 139318197Smarius off_t enh_base; /* Enhanced user data area slice base ... */ 140318197Smarius off_t enh_size; /* ... and size [bytes] */ 141277026Sian int log_count; 142277026Sian struct timeval log_time; 143318197Smarius struct cdev *rpmb_dev; 144163516Simp}; 145163516Simp 146239607Simpstatic const char *errmsg[] = 147239607Simp{ 148239607Simp "None", 149239607Simp "Timeout", 150239607Simp "Bad CRC", 151239607Simp "Fifo", 152239607Simp "Failed", 153239607Simp "Invalid", 154239607Simp "NO MEMORY" 155239607Simp}; 156239607Simp 157338637Smariusstatic SYSCTL_NODE(_hw, OID_AUTO, mmcsd, CTLFLAG_RD, NULL, "mmcsd driver"); 158338637Smarius 159338637Smariusstatic int mmcsd_cache = 1; 160338637SmariusSYSCTL_INT(_hw_mmcsd, OID_AUTO, cache, CTLFLAG_RDTUN, &mmcsd_cache, 0, 161338637Smarius "Device R/W cache enabled if present"); 162338637Smarius 163277026Sian#define LOG_PPS 5 /* Log no more than 5 errors per second. */ 164277026Sian 165163516Simp/* bus entry points */ 166163516Simpstatic int mmcsd_attach(device_t dev); 167163516Simpstatic int mmcsd_detach(device_t dev); 168236491Smariusstatic int mmcsd_probe(device_t dev); 169338637Smariusstatic int mmcsd_shutdown(device_t dev); 170163516Simp 171163516Simp/* disk routines */ 172163516Simpstatic int mmcsd_close(struct disk *dp); 173188725Smavstatic int mmcsd_dump(void *arg, void *virtual, vm_offset_t physical, 174318197Smarius off_t offset, size_t length); 175318197Smariusstatic int mmcsd_getattr(struct bio *); 176318197Smariusstatic int mmcsd_ioctl_disk(struct disk *disk, u_long cmd, void *data, 177318197Smarius int fflag, struct thread *td); 178236491Smariusstatic void mmcsd_strategy(struct bio *bp); 179163516Simpstatic void mmcsd_task(void *arg); 180163516Simp 181318197Smarius/* RMPB cdev interface */ 182318197Smariusstatic int mmcsd_ioctl_rpmb(struct cdev *dev, u_long cmd, caddr_t data, 183318197Smarius int fflag, struct thread *td); 184318197Smarius 185318197Smariusstatic void mmcsd_add_part(struct mmcsd_softc *sc, u_int type, 186322388Smarius const char *name, u_int cnt, off_t media_size, bool ro); 187183774Simpstatic int mmcsd_bus_bit_width(device_t dev); 188318197Smariusstatic daddr_t mmcsd_delete(struct mmcsd_part *part, struct bio *bp); 189322388Smariusstatic const char *mmcsd_errmsg(int e); 190338637Smariusstatic int mmcsd_flush_cache(struct mmcsd_softc *sc); 191318197Smariusstatic int mmcsd_ioctl(struct mmcsd_part *part, u_long cmd, void *data, 192333768Smarius int fflag, struct thread *td); 193318197Smariusstatic int mmcsd_ioctl_cmd(struct mmcsd_part *part, struct mmc_ioc_cmd *mic, 194318197Smarius int fflag); 195318197Smariusstatic uintmax_t mmcsd_pretty_size(off_t size, char *unit); 196318197Smariusstatic daddr_t mmcsd_rw(struct mmcsd_part *part, struct bio *bp); 197318197Smariusstatic int mmcsd_set_blockcount(struct mmcsd_softc *sc, u_int count, bool rel); 198318197Smariusstatic int mmcsd_slicer(device_t dev, const char *provider, 199318197Smarius struct flash_slice *slices, int *nslices); 200318197Smariusstatic int mmcsd_switch_part(device_t bus, device_t dev, uint16_t rca, 201318197Smarius u_int part); 202183774Simp 203322119Smarius#define MMCSD_DISK_LOCK(_part) mtx_lock(&(_part)->disk_mtx) 204322119Smarius#define MMCSD_DISK_UNLOCK(_part) mtx_unlock(&(_part)->disk_mtx) 205322119Smarius#define MMCSD_DISK_LOCK_INIT(_part) \ 206322119Smarius mtx_init(&(_part)->disk_mtx, (_part)->name, "mmcsd disk", MTX_DEF) 207322119Smarius#define MMCSD_DISK_LOCK_DESTROY(_part) mtx_destroy(&(_part)->disk_mtx); 208322119Smarius#define MMCSD_DISK_ASSERT_LOCKED(_part) \ 209322119Smarius mtx_assert(&(_part)->disk_mtx, MA_OWNED); 210322119Smarius#define MMCSD_DISK_ASSERT_UNLOCKED(_part) \ 211322119Smarius mtx_assert(&(_part)->disk_mtx, MA_NOTOWNED); 212163516Simp 213322119Smarius#define MMCSD_IOCTL_LOCK(_part) mtx_lock(&(_part)->ioctl_mtx) 214322119Smarius#define MMCSD_IOCTL_UNLOCK(_part) mtx_unlock(&(_part)->ioctl_mtx) 215322119Smarius#define MMCSD_IOCTL_LOCK_INIT(_part) \ 216322119Smarius mtx_init(&(_part)->ioctl_mtx, (_part)->name, "mmcsd IOCTL", MTX_DEF) 217322119Smarius#define MMCSD_IOCTL_LOCK_DESTROY(_part) mtx_destroy(&(_part)->ioctl_mtx); 218322119Smarius#define MMCSD_IOCTL_ASSERT_LOCKED(_part) \ 219322119Smarius mtx_assert(&(_part)->ioctl_mtx, MA_OWNED); 220322119Smarius#define MMCSD_IOCLT_ASSERT_UNLOCKED(_part) \ 221322119Smarius mtx_assert(&(_part)->ioctl_mtx, MA_NOTOWNED); 222322119Smarius 223163516Simpstatic int 224163516Simpmmcsd_probe(device_t dev) 225163516Simp{ 226163516Simp 227183704Smav device_quiet(dev); 228183480Simp device_set_desc(dev, "MMC/SD Memory Card"); 229163516Simp return (0); 230163516Simp} 231163516Simp 232163516Simpstatic int 233163516Simpmmcsd_attach(device_t dev) 234163516Simp{ 235322119Smarius device_t mmcbus; 236163516Simp struct mmcsd_softc *sc; 237318197Smarius const uint8_t *ext_csd; 238318197Smarius off_t erase_size, sector_size, size, wp_size; 239318197Smarius uintmax_t bytes; 240318197Smarius int err, i; 241322388Smarius uint32_t quirks; 242318197Smarius uint8_t rev; 243318197Smarius bool comp, ro; 244318197Smarius char unit[2]; 245163516Simp 246163516Simp sc = device_get_softc(dev); 247163516Simp sc->dev = dev; 248322119Smarius sc->mmcbus = mmcbus = device_get_parent(dev); 249338637Smarius sc->mode = mmc_get_card_type(dev); 250322119Smarius /* 251322119Smarius * Note that in principle with an SDHCI-like re-tuning implementation, 252322119Smarius * the maximum data size can change at runtime due to a device removal/ 253322119Smarius * insertion that results in switches to/from a transfer mode involving 254322119Smarius * re-tuning, iff there are multiple devices on a given bus. Until now 255322119Smarius * mmc(4) lacks support for rescanning already attached buses, however, 256322119Smarius * and sdhci(4) to date has no support for shared buses in the first 257322119Smarius * place either. 258322119Smarius */ 259322119Smarius sc->max_data = mmc_get_max_data(dev); 260322119Smarius sc->high_cap = mmc_get_high_cap(dev); 261318197Smarius sc->rca = mmc_get_rca(dev); 262322388Smarius sc->cmd6_time = mmc_get_cmd6_timeout(dev); 263322388Smarius quirks = mmc_get_quirks(dev); 264163516Simp 265318197Smarius /* Only MMC >= 4.x devices support EXT_CSD. */ 266318197Smarius if (mmc_get_spec_vers(dev) >= 4) { 267322119Smarius MMCBUS_ACQUIRE_BUS(mmcbus, dev); 268322119Smarius err = mmc_send_ext_csd(mmcbus, dev, sc->ext_csd); 269322119Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 270322388Smarius if (err != MMC_ERR_NONE) { 271322388Smarius device_printf(dev, "Error reading EXT_CSD %s\n", 272322388Smarius mmcsd_errmsg(err)); 273322388Smarius return (ENXIO); 274322388Smarius } 275318197Smarius } 276318197Smarius ext_csd = sc->ext_csd; 277269341Sian 278322388Smarius if ((quirks & MMC_QUIRK_INAND_CMD38) != 0) { 279322388Smarius if (mmc_get_spec_vers(dev) < 4) { 280322388Smarius device_printf(dev, 281322388Smarius "MMC_QUIRK_INAND_CMD38 set but no EXT_CSD\n"); 282322388Smarius return (EINVAL); 283322388Smarius } 284322388Smarius sc->flags |= MMCSD_INAND_CMD38; 285322388Smarius } 286322388Smarius 287183774Simp /* 288322388Smarius * EXT_CSD_SEC_FEATURE_SUPPORT_GB_CL_EN denotes support for both 289322388Smarius * insecure and secure TRIM. 290322388Smarius */ 291322388Smarius if ((ext_csd[EXT_CSD_SEC_FEATURE_SUPPORT] & 292322388Smarius EXT_CSD_SEC_FEATURE_SUPPORT_GB_CL_EN) != 0 && 293322388Smarius (quirks & MMC_QUIRK_BROKEN_TRIM) == 0) { 294322388Smarius if (bootverbose) 295322388Smarius device_printf(dev, "taking advantage of TRIM\n"); 296322388Smarius sc->flags |= MMCSD_USE_TRIM; 297322388Smarius sc->erase_sector = 1; 298322388Smarius } else 299322388Smarius sc->erase_sector = mmc_get_erase_sector(dev); 300322388Smarius 301322388Smarius /* 302318197Smarius * Enhanced user data area and general purpose partitions are only 303318197Smarius * supported in revision 1.4 (EXT_CSD_REV == 4) and later, the RPMB 304318197Smarius * partition in revision 1.5 (MMC v4.41, EXT_CSD_REV == 5) and later. 305183774Simp */ 306318197Smarius rev = ext_csd[EXT_CSD_REV]; 307318197Smarius 308318197Smarius /* 309338637Smarius * With revision 1.5 (MMC v4.5, EXT_CSD_REV == 6) and later, take 310338637Smarius * advantage of the device R/W cache if present and useage is not 311338637Smarius * disabled. 312338637Smarius */ 313338637Smarius if (rev >= 6 && mmcsd_cache != 0) { 314338637Smarius size = le32dec(&ext_csd[EXT_CSD_CACHE_SIZE]); 315338637Smarius if (bootverbose) 316338637Smarius device_printf(dev, "cache size %juKB\n", size); 317338637Smarius if (size > 0) { 318338637Smarius MMCBUS_ACQUIRE_BUS(mmcbus, dev); 319338637Smarius err = mmc_switch(mmcbus, dev, sc->rca, 320338637Smarius EXT_CSD_CMD_SET_NORMAL, EXT_CSD_CACHE_CTRL, 321338637Smarius EXT_CSD_CACHE_CTRL_CACHE_EN, sc->cmd6_time, true); 322338637Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 323338637Smarius if (err != MMC_ERR_NONE) 324338637Smarius device_printf(dev, "failed to enable cache\n"); 325338637Smarius else 326338637Smarius sc->flags |= MMCSD_FLUSH_CACHE; 327338637Smarius } 328338637Smarius } 329338637Smarius 330338637Smarius /* 331318197Smarius * Ignore user-creatable enhanced user data area and general purpose 332318197Smarius * partitions partitions as long as partitioning hasn't been finished. 333318197Smarius */ 334318197Smarius comp = (ext_csd[EXT_CSD_PART_SET] & EXT_CSD_PART_SET_COMPLETED) != 0; 335318197Smarius 336318197Smarius /* 337318197Smarius * Add enhanced user data area slice, unless it spans the entirety of 338318197Smarius * the user data area. The enhanced area is of a multiple of high 339318197Smarius * capacity write protect groups ((ERASE_GRP_SIZE + HC_WP_GRP_SIZE) * 340318197Smarius * 512 KB) and its offset given in either sectors or bytes, depending 341318197Smarius * on whether it's a high capacity device or not. 342318197Smarius * NB: The slicer and its slices need to be registered before adding 343318197Smarius * the disk for the corresponding user data area as re-tasting is 344318197Smarius * racy. 345318197Smarius */ 346318197Smarius sector_size = mmc_get_sector_size(dev); 347318197Smarius size = ext_csd[EXT_CSD_ENH_SIZE_MULT] + 348318197Smarius (ext_csd[EXT_CSD_ENH_SIZE_MULT + 1] << 8) + 349318197Smarius (ext_csd[EXT_CSD_ENH_SIZE_MULT + 2] << 16); 350318197Smarius if (rev >= 4 && comp == TRUE && size > 0 && 351318197Smarius (ext_csd[EXT_CSD_PART_SUPPORT] & 352318197Smarius EXT_CSD_PART_SUPPORT_ENH_ATTR_EN) != 0 && 353318197Smarius (ext_csd[EXT_CSD_PART_ATTR] & (EXT_CSD_PART_ATTR_ENH_USR)) != 0) { 354318197Smarius erase_size = ext_csd[EXT_CSD_ERASE_GRP_SIZE] * 1024 * 355318197Smarius MMC_SECTOR_SIZE; 356318197Smarius wp_size = ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; 357318197Smarius size *= erase_size * wp_size; 358318197Smarius if (size != mmc_get_media_size(dev) * sector_size) { 359318197Smarius sc->enh_size = size; 360338637Smarius sc->enh_base = 361338637Smarius le32dec(&ext_csd[EXT_CSD_ENH_START_ADDR]) * 362322119Smarius (sc->high_cap != 0 ? MMC_SECTOR_SIZE : 1); 363318197Smarius } else if (bootverbose) 364318197Smarius device_printf(dev, 365318197Smarius "enhanced user data area spans entire device\n"); 366183774Simp } 367318197Smarius 368234524Smarius /* 369318197Smarius * Add default partition. This may be the only one or the user 370318197Smarius * data area in case partitions are supported. 371234524Smarius */ 372318197Smarius ro = mmc_get_read_only(dev); 373318197Smarius mmcsd_add_part(sc, EXT_CSD_PART_CONFIG_ACC_DEFAULT, "mmcsd", 374322388Smarius device_get_unit(dev), mmc_get_media_size(dev) * sector_size, ro); 375169567Simp 376318197Smarius if (mmc_get_spec_vers(dev) < 3) 377318197Smarius return (0); 378163516Simp 379318197Smarius /* Belatedly announce enhanced user data slice. */ 380318197Smarius if (sc->enh_size != 0) { 381318197Smarius bytes = mmcsd_pretty_size(size, unit); 382318197Smarius printf(FLASH_SLICES_FMT ": %ju%sB enhanced user data area " 383318197Smarius "slice offset 0x%jx at %s\n", device_get_nameunit(dev), 384318197Smarius MMCSD_LABEL_ENH, bytes, unit, (uintmax_t)sc->enh_base, 385318197Smarius device_get_nameunit(dev)); 386318197Smarius } 387318197Smarius 388318197Smarius /* 389318197Smarius * Determine partition switch timeout (provided in units of 10 ms) 390318197Smarius * and ensure it's at least 300 ms as some eMMC chips lie. 391318197Smarius */ 392318197Smarius sc->part_time = max(ext_csd[EXT_CSD_PART_SWITCH_TO] * 10 * 1000, 393318197Smarius 300 * 1000); 394318197Smarius 395318197Smarius /* Add boot partitions, which are of a fixed multiple of 128 KB. */ 396318197Smarius size = ext_csd[EXT_CSD_BOOT_SIZE_MULT] * MMC_BOOT_RPMB_BLOCK_SIZE; 397322119Smarius if (size > 0 && (mmcbr_get_caps(mmcbus) & MMC_CAP_BOOT_NOACC) == 0) { 398318197Smarius mmcsd_add_part(sc, EXT_CSD_PART_CONFIG_ACC_BOOT0, 399322388Smarius MMCSD_FMT_BOOT, 0, size, 400318197Smarius ro | ((ext_csd[EXT_CSD_BOOT_WP_STATUS] & 401318197Smarius EXT_CSD_BOOT_WP_STATUS_BOOT0_MASK) != 0)); 402318197Smarius mmcsd_add_part(sc, EXT_CSD_PART_CONFIG_ACC_BOOT1, 403322388Smarius MMCSD_FMT_BOOT, 1, size, 404318197Smarius ro | ((ext_csd[EXT_CSD_BOOT_WP_STATUS] & 405318197Smarius EXT_CSD_BOOT_WP_STATUS_BOOT1_MASK) != 0)); 406318197Smarius } 407318197Smarius 408318197Smarius /* Add RPMB partition, which also is of a fixed multiple of 128 KB. */ 409318197Smarius size = ext_csd[EXT_CSD_RPMB_MULT] * MMC_BOOT_RPMB_BLOCK_SIZE; 410318197Smarius if (rev >= 5 && size > 0) 411318197Smarius mmcsd_add_part(sc, EXT_CSD_PART_CONFIG_ACC_RPMB, 412322388Smarius MMCSD_FMT_RPMB, 0, size, ro); 413318197Smarius 414318197Smarius if (rev <= 3 || comp == FALSE) 415318197Smarius return (0); 416318197Smarius 417318197Smarius /* 418318197Smarius * Add general purpose partitions, which are of a multiple of high 419318197Smarius * capacity write protect groups, too. 420318197Smarius */ 421318197Smarius if ((ext_csd[EXT_CSD_PART_SUPPORT] & EXT_CSD_PART_SUPPORT_EN) != 0) { 422318197Smarius erase_size = ext_csd[EXT_CSD_ERASE_GRP_SIZE] * 1024 * 423318197Smarius MMC_SECTOR_SIZE; 424318197Smarius wp_size = ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; 425318197Smarius for (i = 0; i < MMC_PART_GP_MAX; i++) { 426318197Smarius size = ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3] + 427318197Smarius (ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3 + 1] << 8) + 428318197Smarius (ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3 + 2] << 16); 429318197Smarius if (size == 0) 430318197Smarius continue; 431318197Smarius mmcsd_add_part(sc, EXT_CSD_PART_CONFIG_ACC_GP0 + i, 432322388Smarius MMCSD_FMT_GP, i, size * erase_size * wp_size, ro); 433318197Smarius } 434318197Smarius } 435163516Simp return (0); 436163516Simp} 437163516Simp 438318197Smariusstatic uintmax_t 439318197Smariusmmcsd_pretty_size(off_t size, char *unit) 440318197Smarius{ 441318197Smarius uintmax_t bytes; 442318197Smarius int i; 443318197Smarius 444318197Smarius /* 445318197Smarius * Display in most natural units. There's no card < 1MB. However, 446318197Smarius * RPMB partitions occasionally are smaller than that, though. The 447318197Smarius * SD standard goes to 2 GiB due to its reliance on FAT, but the data 448318197Smarius * format supports up to 4 GiB and some card makers push it up to this 449318197Smarius * limit. The SDHC standard only goes to 32 GiB due to FAT32, but the 450318197Smarius * data format supports up to 2 TiB however. 2048 GB isn't too ugly, 451318197Smarius * so we note it in passing here and don't add the code to print TB). 452318197Smarius * Since these cards are sold in terms of MB and GB not MiB and GiB, 453318197Smarius * report them like that. We also round to the nearest unit, since 454318197Smarius * many cards are a few percent short, even of the power of 10 size. 455318197Smarius */ 456318197Smarius bytes = size; 457318197Smarius unit[0] = unit[1] = '\0'; 458318197Smarius for (i = 0; i <= 2 && bytes >= 1000; i++) { 459318197Smarius bytes = (bytes + 1000 / 2 - 1) / 1000; 460318197Smarius switch (i) { 461318197Smarius case 0: 462318197Smarius unit[0] = 'k'; 463318197Smarius break; 464318197Smarius case 1: 465318197Smarius unit[0] = 'M'; 466318197Smarius break; 467318197Smarius case 2: 468318197Smarius unit[0] = 'G'; 469318197Smarius break; 470318197Smarius default: 471318197Smarius break; 472318197Smarius } 473318197Smarius } 474318197Smarius return (bytes); 475318197Smarius} 476318197Smarius 477318197Smariusstatic struct cdevsw mmcsd_rpmb_cdevsw = { 478318197Smarius .d_version = D_VERSION, 479318197Smarius .d_name = "mmcsdrpmb", 480318197Smarius .d_ioctl = mmcsd_ioctl_rpmb 481318197Smarius}; 482318197Smarius 483318197Smariusstatic void 484318197Smariusmmcsd_add_part(struct mmcsd_softc *sc, u_int type, const char *name, u_int cnt, 485322388Smarius off_t media_size, bool ro) 486318197Smarius{ 487318197Smarius struct make_dev_args args; 488322119Smarius device_t dev, mmcbus; 489318197Smarius const char *ext; 490318197Smarius const uint8_t *ext_csd; 491318197Smarius struct mmcsd_part *part; 492318197Smarius struct disk *d; 493318197Smarius uintmax_t bytes; 494318197Smarius u_int gp; 495318197Smarius uint32_t speed; 496318197Smarius uint8_t extattr; 497318197Smarius bool enh; 498318197Smarius char unit[2]; 499318197Smarius 500318197Smarius dev = sc->dev; 501322119Smarius mmcbus = sc->mmcbus; 502318197Smarius part = sc->part[type] = malloc(sizeof(*part), M_DEVBUF, 503318197Smarius M_WAITOK | M_ZERO); 504318197Smarius part->sc = sc; 505318197Smarius part->cnt = cnt; 506318197Smarius part->type = type; 507318197Smarius part->ro = ro; 508318197Smarius snprintf(part->name, sizeof(part->name), name, device_get_unit(dev)); 509318197Smarius 510322119Smarius MMCSD_IOCTL_LOCK_INIT(part); 511322119Smarius 512322119Smarius /* 513322119Smarius * For the RPMB partition, allow IOCTL access only. 514322119Smarius * NB: If ever attaching RPMB partitions to disk(9), the re-tuning 515322119Smarius * implementation and especially its pausing need to be revisited, 516322119Smarius * because then re-tuning requests may be issued by the IOCTL half 517322119Smarius * of this driver while re-tuning is already paused by the disk(9) 518322119Smarius * one and vice versa. 519322119Smarius */ 520318197Smarius if (type == EXT_CSD_PART_CONFIG_ACC_RPMB) { 521318197Smarius make_dev_args_init(&args); 522318197Smarius args.mda_flags = MAKEDEV_CHECKNAME | MAKEDEV_WAITOK; 523318197Smarius args.mda_devsw = &mmcsd_rpmb_cdevsw; 524318197Smarius args.mda_uid = UID_ROOT; 525318197Smarius args.mda_gid = GID_OPERATOR; 526318197Smarius args.mda_mode = 0640; 527318197Smarius args.mda_si_drv1 = part; 528318197Smarius if (make_dev_s(&args, &sc->rpmb_dev, "%s", part->name) != 0) { 529318197Smarius device_printf(dev, "Failed to make RPMB device\n"); 530318197Smarius free(part, M_DEVBUF); 531318197Smarius return; 532318197Smarius } 533318197Smarius } else { 534322119Smarius MMCSD_DISK_LOCK_INIT(part); 535318197Smarius 536318197Smarius d = part->disk = disk_alloc(); 537318197Smarius d->d_close = mmcsd_close; 538318197Smarius d->d_strategy = mmcsd_strategy; 539318197Smarius d->d_ioctl = mmcsd_ioctl_disk; 540318197Smarius d->d_dump = mmcsd_dump; 541318197Smarius d->d_getattr = mmcsd_getattr; 542318197Smarius d->d_name = part->name; 543318197Smarius d->d_drv1 = part; 544318197Smarius d->d_sectorsize = mmc_get_sector_size(dev); 545322119Smarius d->d_maxsize = sc->max_data * d->d_sectorsize; 546318197Smarius d->d_mediasize = media_size; 547322388Smarius d->d_stripesize = sc->erase_sector * d->d_sectorsize; 548318197Smarius d->d_unit = cnt; 549318197Smarius d->d_flags = DISKFLAG_CANDELETE; 550338637Smarius if ((sc->flags & MMCSD_FLUSH_CACHE) != 0) 551338637Smarius d->d_flags |= DISKFLAG_CANFLUSHCACHE; 552322388Smarius d->d_delmaxsize = mmc_get_erase_sector(dev) * d->d_sectorsize; 553318197Smarius strlcpy(d->d_ident, mmc_get_card_sn_string(dev), 554318197Smarius sizeof(d->d_ident)); 555318197Smarius strlcpy(d->d_descr, mmc_get_card_id_string(dev), 556318197Smarius sizeof(d->d_descr)); 557318197Smarius d->d_rotation_rate = DISK_RR_NON_ROTATING; 558318197Smarius 559318197Smarius disk_create(d, DISK_VERSION); 560318197Smarius bioq_init(&part->bio_queue); 561318197Smarius 562318197Smarius part->running = 1; 563318197Smarius kproc_create(&mmcsd_task, part, &part->p, 0, 0, 564318197Smarius "%s%d: mmc/sd card", part->name, cnt); 565318197Smarius } 566318197Smarius 567318197Smarius bytes = mmcsd_pretty_size(media_size, unit); 568318197Smarius if (type == EXT_CSD_PART_CONFIG_ACC_DEFAULT) { 569322119Smarius speed = mmcbr_get_clock(mmcbus); 570318197Smarius printf("%s%d: %ju%sB <%s>%s at %s %d.%01dMHz/%dbit/%d-block\n", 571318197Smarius part->name, cnt, bytes, unit, mmc_get_card_id_string(dev), 572322119Smarius ro ? " (read-only)" : "", device_get_nameunit(mmcbus), 573318197Smarius speed / 1000000, (speed / 100000) % 10, 574322119Smarius mmcsd_bus_bit_width(dev), sc->max_data); 575318197Smarius } else if (type == EXT_CSD_PART_CONFIG_ACC_RPMB) { 576318197Smarius printf("%s: %ju%sB partion %d%s at %s\n", part->name, bytes, 577318197Smarius unit, type, ro ? " (read-only)" : "", 578318197Smarius device_get_nameunit(dev)); 579318197Smarius } else { 580318197Smarius enh = false; 581318197Smarius ext = NULL; 582318197Smarius extattr = 0; 583318197Smarius if (type >= EXT_CSD_PART_CONFIG_ACC_GP0 && 584318197Smarius type <= EXT_CSD_PART_CONFIG_ACC_GP3) { 585318197Smarius ext_csd = sc->ext_csd; 586318197Smarius gp = type - EXT_CSD_PART_CONFIG_ACC_GP0; 587318197Smarius if ((ext_csd[EXT_CSD_PART_SUPPORT] & 588318197Smarius EXT_CSD_PART_SUPPORT_ENH_ATTR_EN) != 0 && 589318197Smarius (ext_csd[EXT_CSD_PART_ATTR] & 590318197Smarius (EXT_CSD_PART_ATTR_ENH_GP0 << gp)) != 0) 591318197Smarius enh = true; 592318197Smarius else if ((ext_csd[EXT_CSD_PART_SUPPORT] & 593318197Smarius EXT_CSD_PART_SUPPORT_EXT_ATTR_EN) != 0) { 594318197Smarius extattr = (ext_csd[EXT_CSD_EXT_PART_ATTR + 595318197Smarius (gp / 2)] >> (4 * (gp % 2))) & 0xF; 596318197Smarius switch (extattr) { 597318197Smarius case EXT_CSD_EXT_PART_ATTR_DEFAULT: 598318197Smarius break; 599318197Smarius case EXT_CSD_EXT_PART_ATTR_SYSTEMCODE: 600318197Smarius ext = "system code"; 601318197Smarius break; 602318197Smarius case EXT_CSD_EXT_PART_ATTR_NPERSISTENT: 603318197Smarius ext = "non-persistent"; 604318197Smarius break; 605318197Smarius default: 606318197Smarius ext = "reserved"; 607318197Smarius break; 608318197Smarius } 609318197Smarius } 610318197Smarius } 611318197Smarius if (ext == NULL) 612318197Smarius printf("%s%d: %ju%sB partion %d%s%s at %s\n", 613318197Smarius part->name, cnt, bytes, unit, type, enh ? 614318197Smarius " enhanced" : "", ro ? " (read-only)" : "", 615318197Smarius device_get_nameunit(dev)); 616318197Smarius else 617318197Smarius printf("%s%d: %ju%sB partion %d extended 0x%x " 618318197Smarius "(%s)%s at %s\n", part->name, cnt, bytes, unit, 619318197Smarius type, extattr, ext, ro ? " (read-only)" : "", 620318197Smarius device_get_nameunit(dev)); 621318197Smarius } 622318197Smarius} 623318197Smarius 624163516Simpstatic int 625318197Smariusmmcsd_slicer(device_t dev, const char *provider, 626318197Smarius struct flash_slice *slices, int *nslices) 627318197Smarius{ 628318197Smarius char name[MMCSD_PART_NAMELEN]; 629318197Smarius struct mmcsd_softc *sc; 630318197Smarius struct mmcsd_part *part; 631318197Smarius 632318197Smarius *nslices = 0; 633318197Smarius if (slices == NULL) 634318197Smarius return (ENOMEM); 635318197Smarius 636318197Smarius sc = device_get_softc(dev); 637318197Smarius if (sc->enh_size == 0) 638318197Smarius return (ENXIO); 639318197Smarius 640318197Smarius part = sc->part[EXT_CSD_PART_CONFIG_ACC_DEFAULT]; 641318197Smarius snprintf(name, sizeof(name), "%s%d", part->disk->d_name, 642318197Smarius part->disk->d_unit); 643318197Smarius if (strcmp(name, provider) != 0) 644318197Smarius return (ENXIO); 645318197Smarius 646318197Smarius *nslices = 1; 647318197Smarius slices[0].base = sc->enh_base; 648318197Smarius slices[0].size = sc->enh_size; 649318197Smarius slices[0].label = MMCSD_LABEL_ENH; 650318197Smarius return (0); 651318197Smarius} 652318197Smarius 653318197Smariusstatic int 654163516Simpmmcsd_detach(device_t dev) 655163516Simp{ 656169567Simp struct mmcsd_softc *sc = device_get_softc(dev); 657318197Smarius struct mmcsd_part *part; 658318197Smarius int i; 659169567Simp 660318197Smarius for (i = 0; i < MMC_PART_MAX; i++) { 661318197Smarius part = sc->part[i]; 662322119Smarius if (part != NULL) { 663322119Smarius if (part->disk != NULL) { 664322119Smarius MMCSD_DISK_LOCK(part); 665322119Smarius part->suspend = 0; 666322119Smarius if (part->running > 0) { 667322119Smarius /* kill thread */ 668322119Smarius part->running = 0; 669322119Smarius wakeup(part); 670322119Smarius /* wait for thread to finish. */ 671322119Smarius while (part->running != -1) 672322119Smarius msleep(part, &part->disk_mtx, 0, 673322119Smarius "mmcsd disk detach", 0); 674322119Smarius } 675322119Smarius MMCSD_DISK_UNLOCK(part); 676318197Smarius } 677322119Smarius MMCSD_IOCTL_LOCK(part); 678322119Smarius while (part->ioctl > 0) 679322119Smarius msleep(part, &part->ioctl_mtx, 0, 680322119Smarius "mmcsd IOCTL detach", 0); 681322119Smarius part->ioctl = -1; 682322119Smarius MMCSD_IOCTL_UNLOCK(part); 683318197Smarius } 684185721Smav } 685169567Simp 686318197Smarius if (sc->rpmb_dev != NULL) 687318197Smarius destroy_dev(sc->rpmb_dev); 688169567Simp 689318197Smarius for (i = 0; i < MMC_PART_MAX; i++) { 690318197Smarius part = sc->part[i]; 691318197Smarius if (part != NULL) { 692318197Smarius if (part->disk != NULL) { 693318197Smarius /* Flush the request queue. */ 694318197Smarius bioq_flush(&part->bio_queue, NULL, ENXIO); 695318197Smarius /* kill disk */ 696318197Smarius disk_destroy(part->disk); 697169567Simp 698322119Smarius MMCSD_DISK_LOCK_DESTROY(part); 699318197Smarius } 700322119Smarius MMCSD_IOCTL_LOCK_DESTROY(part); 701318197Smarius free(part, M_DEVBUF); 702318197Smarius } 703318197Smarius } 704338637Smarius if (mmcsd_flush_cache(sc) != MMC_ERR_NONE) 705338637Smarius device_printf(dev, "failed to flush cache\n"); 706183467Simp return (0); 707163516Simp} 708163516Simp 709163516Simpstatic int 710338637Smariusmmcsd_shutdown(device_t dev) 711338637Smarius{ 712338637Smarius struct mmcsd_softc *sc = device_get_softc(dev); 713338637Smarius 714338637Smarius if (mmcsd_flush_cache(sc) != MMC_ERR_NONE) 715338637Smarius device_printf(dev, "failed to flush cache\n"); 716338637Smarius return (0); 717338637Smarius} 718338637Smarius 719338637Smariusstatic int 720185721Smavmmcsd_suspend(device_t dev) 721185721Smav{ 722185721Smav struct mmcsd_softc *sc = device_get_softc(dev); 723318197Smarius struct mmcsd_part *part; 724318197Smarius int i; 725185721Smav 726318197Smarius for (i = 0; i < MMC_PART_MAX; i++) { 727318197Smarius part = sc->part[i]; 728322119Smarius if (part != NULL) { 729322119Smarius if (part->disk != NULL) { 730322119Smarius MMCSD_DISK_LOCK(part); 731322119Smarius part->suspend = 1; 732322119Smarius if (part->running > 0) { 733322119Smarius /* kill thread */ 734322119Smarius part->running = 0; 735322119Smarius wakeup(part); 736322119Smarius /* wait for thread to finish. */ 737322119Smarius while (part->running != -1) 738322119Smarius msleep(part, &part->disk_mtx, 0, 739322119Smarius "mmcsd disk suspension", 0); 740322119Smarius } 741322119Smarius MMCSD_DISK_UNLOCK(part); 742318197Smarius } 743322119Smarius MMCSD_IOCTL_LOCK(part); 744322119Smarius while (part->ioctl > 0) 745322119Smarius msleep(part, &part->ioctl_mtx, 0, 746322119Smarius "mmcsd IOCTL suspension", 0); 747322119Smarius part->ioctl = -1; 748322119Smarius MMCSD_IOCTL_UNLOCK(part); 749318197Smarius } 750185721Smav } 751338637Smarius if (mmcsd_flush_cache(sc) != MMC_ERR_NONE) 752338637Smarius device_printf(dev, "failed to flush cache\n"); 753185721Smav return (0); 754185721Smav} 755185721Smav 756185721Smavstatic int 757185721Smavmmcsd_resume(device_t dev) 758185721Smav{ 759185721Smav struct mmcsd_softc *sc = device_get_softc(dev); 760318197Smarius struct mmcsd_part *part; 761318197Smarius int i; 762185721Smav 763318197Smarius for (i = 0; i < MMC_PART_MAX; i++) { 764318197Smarius part = sc->part[i]; 765322119Smarius if (part != NULL) { 766322119Smarius if (part->disk != NULL) { 767322119Smarius MMCSD_DISK_LOCK(part); 768322119Smarius part->suspend = 0; 769322119Smarius if (part->running <= 0) { 770322119Smarius part->running = 1; 771322119Smarius MMCSD_DISK_UNLOCK(part); 772322119Smarius kproc_create(&mmcsd_task, part, 773322119Smarius &part->p, 0, 0, "%s%d: mmc/sd card", 774322119Smarius part->name, part->cnt); 775322119Smarius } else 776322119Smarius MMCSD_DISK_UNLOCK(part); 777322119Smarius } 778322119Smarius MMCSD_IOCTL_LOCK(part); 779322119Smarius part->ioctl = 0; 780322119Smarius MMCSD_IOCTL_UNLOCK(part); 781318197Smarius } 782318197Smarius } 783185721Smav return (0); 784185721Smav} 785185721Smav 786185721Smavstatic int 787338637Smariusmmcsd_close(struct disk *dp) 788163516Simp{ 789338637Smarius struct mmcsd_softc *sc; 790236491Smarius 791338637Smarius if ((dp->d_flags & DISKFLAG_OPEN) != 0) { 792338637Smarius sc = ((struct mmcsd_part *)dp->d_drv1)->sc; 793338637Smarius if (mmcsd_flush_cache(sc) != MMC_ERR_NONE) 794338637Smarius device_printf(sc->dev, "failed to flush cache\n"); 795338637Smarius } 796183467Simp return (0); 797163516Simp} 798163516Simp 799163516Simpstatic void 800163516Simpmmcsd_strategy(struct bio *bp) 801163516Simp{ 802163516Simp struct mmcsd_softc *sc; 803318197Smarius struct mmcsd_part *part; 804163516Simp 805318197Smarius part = bp->bio_disk->d_drv1; 806318197Smarius sc = part->sc; 807322119Smarius MMCSD_DISK_LOCK(part); 808318197Smarius if (part->running > 0 || part->suspend > 0) { 809318197Smarius bioq_disksort(&part->bio_queue, bp); 810322119Smarius MMCSD_DISK_UNLOCK(part); 811318197Smarius wakeup(part); 812185201Smav } else { 813322119Smarius MMCSD_DISK_UNLOCK(part); 814185201Smav biofinish(bp, NULL, ENXIO); 815185201Smav } 816163516Simp} 817163516Simp 818318197Smariusstatic int 819318197Smariusmmcsd_ioctl_rpmb(struct cdev *dev, u_long cmd, caddr_t data, 820333768Smarius int fflag, struct thread *td) 821318197Smarius{ 822318197Smarius 823333768Smarius return (mmcsd_ioctl(dev->si_drv1, cmd, data, fflag, td)); 824318197Smarius} 825318197Smarius 826318197Smariusstatic int 827318197Smariusmmcsd_ioctl_disk(struct disk *disk, u_long cmd, void *data, int fflag, 828333768Smarius struct thread *td) 829318197Smarius{ 830318197Smarius 831333768Smarius return (mmcsd_ioctl(disk->d_drv1, cmd, data, fflag, td)); 832318197Smarius} 833318197Smarius 834318197Smariusstatic int 835333768Smariusmmcsd_ioctl(struct mmcsd_part *part, u_long cmd, void *data, int fflag, 836333768Smarius struct thread *td) 837318197Smarius{ 838318197Smarius struct mmc_ioc_cmd *mic; 839318197Smarius struct mmc_ioc_multi_cmd *mimc; 840318197Smarius int i, err; 841318197Smarius u_long cnt, size; 842318197Smarius 843318197Smarius if ((fflag & FREAD) == 0) 844318197Smarius return (EBADF); 845318197Smarius 846333768Smarius err = priv_check(td, PRIV_DRIVER); 847333768Smarius if (err != 0) 848333768Smarius return (err); 849333768Smarius 850318197Smarius err = 0; 851318197Smarius switch (cmd) { 852318197Smarius case MMC_IOC_CMD: 853318197Smarius mic = data; 854322119Smarius err = mmcsd_ioctl_cmd(part, mic, fflag); 855318197Smarius break; 856322119Smarius case MMC_IOC_MULTI_CMD: 857318197Smarius mimc = data; 858318197Smarius if (mimc->num_of_cmds == 0) 859318197Smarius break; 860318197Smarius if (mimc->num_of_cmds > MMC_IOC_MAX_CMDS) 861318197Smarius return (EINVAL); 862318197Smarius cnt = mimc->num_of_cmds; 863318197Smarius size = sizeof(*mic) * cnt; 864318197Smarius mic = malloc(size, M_TEMP, M_WAITOK); 865318197Smarius err = copyin((const void *)mimc->cmds, mic, size); 866322119Smarius if (err == 0) { 867322119Smarius for (i = 0; i < cnt; i++) { 868322119Smarius err = mmcsd_ioctl_cmd(part, &mic[i], fflag); 869322119Smarius if (err != 0) 870322119Smarius break; 871322119Smarius } 872318197Smarius } 873318197Smarius free(mic, M_TEMP); 874318197Smarius break; 875318197Smarius default: 876318197Smarius return (ENOIOCTL); 877318197Smarius } 878318197Smarius return (err); 879318197Smarius} 880318197Smarius 881318197Smariusstatic int 882318197Smariusmmcsd_ioctl_cmd(struct mmcsd_part *part, struct mmc_ioc_cmd *mic, int fflag) 883318197Smarius{ 884318197Smarius struct mmc_command cmd; 885318197Smarius struct mmc_data data; 886318197Smarius struct mmcsd_softc *sc; 887322119Smarius device_t dev, mmcbus; 888318197Smarius void *dp; 889318197Smarius u_long len; 890318197Smarius int err, retries; 891318197Smarius uint32_t status; 892318197Smarius uint16_t rca; 893318197Smarius 894318197Smarius if ((fflag & FWRITE) == 0 && mic->write_flag != 0) 895318197Smarius return (EBADF); 896318197Smarius 897318197Smarius if (part->ro == TRUE && mic->write_flag != 0) 898318197Smarius return (EROFS); 899318197Smarius 900322119Smarius /* 901322119Smarius * We don't need to explicitly lock against the disk(9) half of this 902322119Smarius * driver as MMCBUS_ACQUIRE_BUS() will serialize us. However, it's 903322119Smarius * necessary to protect against races with detachment and suspension, 904322119Smarius * especially since it's required to switch away from RPMB partitions 905322119Smarius * again after an access (see mmcsd_switch_part()). 906322119Smarius */ 907322119Smarius MMCSD_IOCTL_LOCK(part); 908322119Smarius while (part->ioctl != 0) { 909322119Smarius if (part->ioctl < 0) { 910322119Smarius MMCSD_IOCTL_UNLOCK(part); 911322119Smarius return (ENXIO); 912322119Smarius } 913322119Smarius msleep(part, &part->ioctl_mtx, 0, "mmcsd IOCTL", 0); 914322119Smarius } 915322119Smarius part->ioctl = 1; 916322119Smarius MMCSD_IOCTL_UNLOCK(part); 917322119Smarius 918318197Smarius err = 0; 919318197Smarius dp = NULL; 920318197Smarius len = mic->blksz * mic->blocks; 921322119Smarius if (len > MMC_IOC_MAX_BYTES) { 922322119Smarius err = EOVERFLOW; 923322119Smarius goto out; 924322119Smarius } 925318197Smarius if (len != 0) { 926318197Smarius dp = malloc(len, M_TEMP, M_WAITOK); 927318197Smarius err = copyin((void *)(uintptr_t)mic->data_ptr, dp, len); 928318197Smarius if (err != 0) 929318197Smarius goto out; 930318197Smarius } 931318197Smarius memset(&cmd, 0, sizeof(cmd)); 932318197Smarius memset(&data, 0, sizeof(data)); 933318197Smarius cmd.opcode = mic->opcode; 934318197Smarius cmd.arg = mic->arg; 935318197Smarius cmd.flags = mic->flags; 936318197Smarius if (len != 0) { 937318197Smarius data.len = len; 938318197Smarius data.data = dp; 939318197Smarius data.flags = mic->write_flag != 0 ? MMC_DATA_WRITE : 940318197Smarius MMC_DATA_READ; 941318197Smarius cmd.data = &data; 942318197Smarius } 943318197Smarius sc = part->sc; 944318197Smarius rca = sc->rca; 945318197Smarius if (mic->is_acmd == 0) { 946318197Smarius /* Enforce/patch/restrict RCA-based commands */ 947318197Smarius switch (cmd.opcode) { 948318197Smarius case MMC_SET_RELATIVE_ADDR: 949318197Smarius case MMC_SELECT_CARD: 950318197Smarius err = EPERM; 951318197Smarius goto out; 952318197Smarius case MMC_STOP_TRANSMISSION: 953318197Smarius if ((cmd.arg & 0x1) == 0) 954318197Smarius break; 955318197Smarius /* FALLTHROUGH */ 956318197Smarius case MMC_SLEEP_AWAKE: 957318197Smarius case MMC_SEND_CSD: 958318197Smarius case MMC_SEND_CID: 959318197Smarius case MMC_SEND_STATUS: 960318197Smarius case MMC_GO_INACTIVE_STATE: 961318197Smarius case MMC_FAST_IO: 962318197Smarius case MMC_APP_CMD: 963318197Smarius cmd.arg = (cmd.arg & 0x0000FFFF) | (rca << 16); 964318197Smarius break; 965318197Smarius default: 966318197Smarius break; 967318197Smarius } 968331036Smarius /* 969331036Smarius * No partition switching in userland; it's almost impossible 970331036Smarius * to recover from that, especially if things go wrong. 971331036Smarius */ 972331036Smarius if (cmd.opcode == MMC_SWITCH_FUNC && dp != NULL && 973331036Smarius (((uint8_t *)dp)[EXT_CSD_PART_CONFIG] & 974331036Smarius EXT_CSD_PART_CONFIG_ACC_MASK) != part->type) { 975331036Smarius err = EINVAL; 976331036Smarius goto out; 977331036Smarius } 978318197Smarius } 979318197Smarius dev = sc->dev; 980322119Smarius mmcbus = sc->mmcbus; 981322119Smarius MMCBUS_ACQUIRE_BUS(mmcbus, dev); 982322119Smarius err = mmcsd_switch_part(mmcbus, dev, rca, part->type); 983318197Smarius if (err != MMC_ERR_NONE) 984318197Smarius goto release; 985318197Smarius if (part->type == EXT_CSD_PART_CONFIG_ACC_RPMB) { 986318197Smarius err = mmcsd_set_blockcount(sc, mic->blocks, 987318197Smarius mic->write_flag & (1 << 31)); 988318197Smarius if (err != MMC_ERR_NONE) 989322119Smarius goto switch_back; 990318197Smarius } 991338637Smarius if (mic->write_flag != 0) 992338637Smarius sc->flags |= MMCSD_DIRTY; 993318197Smarius if (mic->is_acmd != 0) 994322119Smarius (void)mmc_wait_for_app_cmd(mmcbus, dev, rca, &cmd, 0); 995318197Smarius else 996322119Smarius (void)mmc_wait_for_cmd(mmcbus, dev, &cmd, 0); 997318197Smarius if (part->type == EXT_CSD_PART_CONFIG_ACC_RPMB) { 998318197Smarius /* 999318197Smarius * If the request went to the RPMB partition, try to ensure 1000331036Smarius * that the command actually has completed. 1001318197Smarius */ 1002318197Smarius retries = MMCSD_CMD_RETRIES; 1003318197Smarius do { 1004322119Smarius err = mmc_send_status(mmcbus, dev, rca, &status); 1005318197Smarius if (err != MMC_ERR_NONE) 1006318197Smarius break; 1007318197Smarius if (R1_STATUS(status) == 0 && 1008318197Smarius R1_CURRENT_STATE(status) != R1_STATE_PRG) 1009318197Smarius break; 1010318197Smarius DELAY(1000); 1011318197Smarius } while (retries-- > 0); 1012318197Smarius } 1013318197Smarius /* 1014318197Smarius * If EXT_CSD was changed, our copy is outdated now. Specifically, 1015318197Smarius * the upper bits of EXT_CSD_PART_CONFIG used in mmcsd_switch_part(), 1016318197Smarius * so retrieve EXT_CSD again. 1017318197Smarius */ 1018318197Smarius if (cmd.opcode == MMC_SWITCH_FUNC) { 1019322119Smarius err = mmc_send_ext_csd(mmcbus, dev, sc->ext_csd); 1020318197Smarius if (err != MMC_ERR_NONE) 1021318197Smarius goto release; 1022318197Smarius } 1023331036Smariusswitch_back: 1024331036Smarius if (part->type == EXT_CSD_PART_CONFIG_ACC_RPMB) { 1025331036Smarius /* 1026331036Smarius * If the request went to the RPMB partition, always switch 1027331036Smarius * back to the default partition (see mmcsd_switch_part()). 1028331036Smarius */ 1029331036Smarius err = mmcsd_switch_part(mmcbus, dev, rca, 1030331036Smarius EXT_CSD_PART_CONFIG_ACC_DEFAULT); 1031331036Smarius if (err != MMC_ERR_NONE) 1032331036Smarius goto release; 1033331036Smarius } 1034322119Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 1035318197Smarius if (cmd.error != MMC_ERR_NONE) { 1036318197Smarius switch (cmd.error) { 1037318197Smarius case MMC_ERR_TIMEOUT: 1038318197Smarius err = ETIMEDOUT; 1039318197Smarius break; 1040318197Smarius case MMC_ERR_BADCRC: 1041318197Smarius err = EILSEQ; 1042318197Smarius break; 1043318197Smarius case MMC_ERR_INVALID: 1044318197Smarius err = EINVAL; 1045318197Smarius break; 1046318197Smarius case MMC_ERR_NO_MEMORY: 1047318197Smarius err = ENOMEM; 1048318197Smarius break; 1049318197Smarius default: 1050318197Smarius err = EIO; 1051318197Smarius break; 1052318197Smarius } 1053318197Smarius goto out; 1054318197Smarius } 1055318197Smarius memcpy(mic->response, cmd.resp, 4 * sizeof(uint32_t)); 1056318197Smarius if (mic->write_flag == 0 && len != 0) { 1057318197Smarius err = copyout(dp, (void *)(uintptr_t)mic->data_ptr, len); 1058318197Smarius if (err != 0) 1059318197Smarius goto out; 1060318197Smarius } 1061318197Smarius goto out; 1062318197Smarius 1063318197Smariusrelease: 1064322119Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 1065318197Smarius err = EIO; 1066318197Smarius 1067318197Smariusout: 1068322119Smarius MMCSD_IOCTL_LOCK(part); 1069322119Smarius part->ioctl = 0; 1070322119Smarius MMCSD_IOCTL_UNLOCK(part); 1071322119Smarius wakeup(part); 1072318197Smarius if (dp != NULL) 1073318197Smarius free(dp, M_TEMP); 1074318197Smarius return (err); 1075318197Smarius} 1076318197Smarius 1077318197Smariusstatic int 1078318197Smariusmmcsd_getattr(struct bio *bp) 1079318197Smarius{ 1080318197Smarius struct mmcsd_part *part; 1081318197Smarius device_t dev; 1082318197Smarius 1083318197Smarius if (strcmp(bp->bio_attribute, "MMC::device") == 0) { 1084318197Smarius if (bp->bio_length != sizeof(dev)) 1085318197Smarius return (EFAULT); 1086318197Smarius part = bp->bio_disk->d_drv1; 1087318197Smarius dev = part->sc->dev; 1088318197Smarius bcopy(&dev, bp->bio_data, sizeof(dev)); 1089318197Smarius bp->bio_completed = bp->bio_length; 1090318197Smarius return (0); 1091318197Smarius } 1092318197Smarius return (-1); 1093318197Smarius} 1094318197Smarius 1095318197Smariusstatic int 1096318197Smariusmmcsd_set_blockcount(struct mmcsd_softc *sc, u_int count, bool reliable) 1097318197Smarius{ 1098318197Smarius struct mmc_command cmd; 1099318197Smarius struct mmc_request req; 1100318197Smarius 1101318197Smarius memset(&req, 0, sizeof(req)); 1102318197Smarius memset(&cmd, 0, sizeof(cmd)); 1103318197Smarius cmd.mrq = &req; 1104318197Smarius req.cmd = &cmd; 1105318197Smarius cmd.opcode = MMC_SET_BLOCK_COUNT; 1106318197Smarius cmd.arg = count & 0x0000FFFF; 1107318197Smarius if (reliable) 1108318197Smarius cmd.arg |= 1 << 31; 1109318197Smarius cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 1110322119Smarius MMCBUS_WAIT_FOR_REQUEST(sc->mmcbus, sc->dev, &req); 1111318197Smarius return (cmd.error); 1112318197Smarius} 1113318197Smarius 1114318197Smariusstatic int 1115318197Smariusmmcsd_switch_part(device_t bus, device_t dev, uint16_t rca, u_int part) 1116318197Smarius{ 1117318197Smarius struct mmcsd_softc *sc; 1118318197Smarius int err; 1119318197Smarius uint8_t value; 1120318197Smarius 1121318197Smarius sc = device_get_softc(dev); 1122318197Smarius 1123322119Smarius if (sc->mode == mode_sd) 1124318197Smarius return (MMC_ERR_NONE); 1125318197Smarius 1126322119Smarius /* 1127322119Smarius * According to section "6.2.2 Command restrictions" of the eMMC 1128322119Smarius * specification v5.1, CMD19/CMD21 aren't allowed to be used with 1129322119Smarius * RPMB partitions. So we pause re-tuning along with triggering 1130322119Smarius * it up-front to decrease the likelihood of re-tuning becoming 1131322119Smarius * necessary while accessing an RPMB partition. Consequently, an 1132322119Smarius * RPMB partition should immediately be switched away from again 1133322119Smarius * after an access in order to allow for re-tuning to take place 1134322119Smarius * anew. 1135322119Smarius */ 1136322119Smarius if (part == EXT_CSD_PART_CONFIG_ACC_RPMB) 1137322119Smarius MMCBUS_RETUNE_PAUSE(sc->mmcbus, sc->dev, true); 1138322119Smarius 1139322119Smarius if (sc->part_curr == part) 1140318197Smarius return (MMC_ERR_NONE); 1141318197Smarius 1142318197Smarius value = (sc->ext_csd[EXT_CSD_PART_CONFIG] & 1143318197Smarius ~EXT_CSD_PART_CONFIG_ACC_MASK) | part; 1144318197Smarius /* Jump! */ 1145318197Smarius err = mmc_switch(bus, dev, rca, EXT_CSD_CMD_SET_NORMAL, 1146318197Smarius EXT_CSD_PART_CONFIG, value, sc->part_time, true); 1147322119Smarius if (err != MMC_ERR_NONE) { 1148322119Smarius if (part == EXT_CSD_PART_CONFIG_ACC_RPMB) 1149322119Smarius MMCBUS_RETUNE_UNPAUSE(sc->mmcbus, sc->dev); 1150318197Smarius return (err); 1151322119Smarius } 1152318197Smarius 1153318197Smarius sc->ext_csd[EXT_CSD_PART_CONFIG] = value; 1154322119Smarius if (sc->part_curr == EXT_CSD_PART_CONFIG_ACC_RPMB) 1155322119Smarius MMCBUS_RETUNE_UNPAUSE(sc->mmcbus, sc->dev); 1156318197Smarius sc->part_curr = part; 1157318197Smarius return (MMC_ERR_NONE); 1158318197Smarius} 1159318197Smarius 1160239607Simpstatic const char * 1161239607Simpmmcsd_errmsg(int e) 1162239607Simp{ 1163318197Smarius 1164239607Simp if (e < 0 || e > MMC_ERR_MAX) 1165239607Simp return "Bad error code"; 1166322119Smarius return (errmsg[e]); 1167239607Simp} 1168239607Simp 1169184033Smavstatic daddr_t 1170318197Smariusmmcsd_rw(struct mmcsd_part *part, struct bio *bp) 1171184033Smav{ 1172184033Smav daddr_t block, end; 1173184033Smav struct mmc_command cmd; 1174184033Smav struct mmc_command stop; 1175184033Smav struct mmc_request req; 1176184033Smav struct mmc_data data; 1177318197Smarius struct mmcsd_softc *sc; 1178322119Smarius device_t dev, mmcbus; 1179322119Smarius u_int numblocks, sz; 1180318197Smarius char *vaddr; 1181184033Smav 1182318197Smarius sc = part->sc; 1183318197Smarius dev = sc->dev; 1184322119Smarius mmcbus = sc->mmcbus; 1185318197Smarius 1186184033Smav block = bp->bio_pblkno; 1187318197Smarius sz = part->disk->d_sectorsize; 1188184033Smav end = bp->bio_pblkno + (bp->bio_bcount / sz); 1189184033Smav while (block < end) { 1190318197Smarius vaddr = bp->bio_data + (block - bp->bio_pblkno) * sz; 1191322119Smarius numblocks = min(end - block, sc->max_data); 1192184033Smav memset(&req, 0, sizeof(req)); 1193318197Smarius memset(&cmd, 0, sizeof(cmd)); 1194184033Smav memset(&stop, 0, sizeof(stop)); 1195254432Sian memset(&data, 0, sizeof(data)); 1196248689Sian cmd.mrq = &req; 1197184033Smav req.cmd = &cmd; 1198184033Smav cmd.data = &data; 1199184033Smav if (bp->bio_cmd == BIO_READ) { 1200184033Smav if (numblocks > 1) 1201184033Smav cmd.opcode = MMC_READ_MULTIPLE_BLOCK; 1202184033Smav else 1203184033Smav cmd.opcode = MMC_READ_SINGLE_BLOCK; 1204184033Smav } else { 1205338637Smarius sc->flags |= MMCSD_DIRTY; 1206184033Smav if (numblocks > 1) 1207184033Smav cmd.opcode = MMC_WRITE_MULTIPLE_BLOCK; 1208184033Smav else 1209184033Smav cmd.opcode = MMC_WRITE_BLOCK; 1210184033Smav } 1211184033Smav cmd.arg = block; 1212322119Smarius if (sc->high_cap == 0) 1213184033Smav cmd.arg <<= 9; 1214184033Smav cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; 1215184033Smav data.data = vaddr; 1216184033Smav data.mrq = &req; 1217184033Smav if (bp->bio_cmd == BIO_READ) 1218184033Smav data.flags = MMC_DATA_READ; 1219184033Smav else 1220184033Smav data.flags = MMC_DATA_WRITE; 1221184033Smav data.len = numblocks * sz; 1222184033Smav if (numblocks > 1) { 1223184033Smav data.flags |= MMC_DATA_MULTI; 1224184033Smav stop.opcode = MMC_STOP_TRANSMISSION; 1225184033Smav stop.arg = 0; 1226184033Smav stop.flags = MMC_RSP_R1B | MMC_CMD_AC; 1227248689Sian stop.mrq = &req; 1228184033Smav req.stop = &stop; 1229184033Smav } 1230322119Smarius MMCBUS_WAIT_FOR_REQUEST(mmcbus, dev, &req); 1231239607Simp if (req.cmd->error != MMC_ERR_NONE) { 1232318197Smarius if (ppsratecheck(&sc->log_time, &sc->log_count, 1233318197Smarius LOG_PPS)) 1234277026Sian device_printf(dev, "Error indicated: %d %s\n", 1235318197Smarius req.cmd->error, 1236318197Smarius mmcsd_errmsg(req.cmd->error)); 1237184033Smav break; 1238239607Simp } 1239184033Smav block += numblocks; 1240184033Smav } 1241184033Smav return (block); 1242184033Smav} 1243184033Smav 1244184033Smavstatic daddr_t 1245318197Smariusmmcsd_delete(struct mmcsd_part *part, struct bio *bp) 1246184033Smav{ 1247184033Smav daddr_t block, end, start, stop; 1248184033Smav struct mmc_command cmd; 1249184033Smav struct mmc_request req; 1250318197Smarius struct mmcsd_softc *sc; 1251322119Smarius device_t dev, mmcbus; 1252322119Smarius u_int erase_sector, sz; 1253322388Smarius int err; 1254322388Smarius bool use_trim; 1255184033Smav 1256318197Smarius sc = part->sc; 1257318197Smarius dev = sc->dev; 1258322119Smarius mmcbus = sc->mmcbus; 1259318197Smarius 1260184033Smav block = bp->bio_pblkno; 1261318197Smarius sz = part->disk->d_sectorsize; 1262184033Smav end = bp->bio_pblkno + (bp->bio_bcount / sz); 1263322388Smarius use_trim = sc->flags & MMCSD_USE_TRIM; 1264322388Smarius if (use_trim == true) { 1265322388Smarius start = block; 1266322388Smarius stop = end; 1267322388Smarius } else { 1268322388Smarius /* Coalesce with the remainder of the previous request. */ 1269322388Smarius if (block > part->eblock && block <= part->eend) 1270322388Smarius block = part->eblock; 1271322388Smarius if (end >= part->eblock && end < part->eend) 1272322388Smarius end = part->eend; 1273322388Smarius /* Safely round to the erase sector boundaries. */ 1274322388Smarius erase_sector = sc->erase_sector; 1275322388Smarius start = block + erase_sector - 1; /* Round up. */ 1276322388Smarius start -= start % erase_sector; 1277322388Smarius stop = end; /* Round down. */ 1278322388Smarius stop -= end % erase_sector; 1279322388Smarius /* 1280322388Smarius * We can't erase an area smaller than an erase sector, so 1281322388Smarius * store it for later. 1282322388Smarius */ 1283322388Smarius if (start >= stop) { 1284322388Smarius part->eblock = block; 1285322388Smarius part->eend = end; 1286322388Smarius return (end); 1287322388Smarius } 1288184034Smav } 1289184033Smav 1290322388Smarius if ((sc->flags & MMCSD_INAND_CMD38) != 0) { 1291322388Smarius err = mmc_switch(mmcbus, dev, sc->rca, EXT_CSD_CMD_SET_NORMAL, 1292322388Smarius EXT_CSD_INAND_CMD38, use_trim == true ? 1293322388Smarius EXT_CSD_INAND_CMD38_TRIM : EXT_CSD_INAND_CMD38_ERASE, 1294322388Smarius sc->cmd6_time, true); 1295322388Smarius if (err != MMC_ERR_NONE) { 1296322388Smarius device_printf(dev, 1297322388Smarius "Setting iNAND erase command failed %s\n", 1298322388Smarius mmcsd_errmsg(err)); 1299322388Smarius return (block); 1300322388Smarius } 1301322388Smarius } 1302322388Smarius 1303322119Smarius /* 1304322119Smarius * Pause re-tuning so it won't interfere with the order of erase 1305322119Smarius * commands. Note that these latter don't use the data lines, so 1306322119Smarius * re-tuning shouldn't actually become necessary during erase. 1307322119Smarius */ 1308322119Smarius MMCBUS_RETUNE_PAUSE(mmcbus, dev, false); 1309184033Smav /* Set erase start position. */ 1310184033Smav memset(&req, 0, sizeof(req)); 1311184033Smav memset(&cmd, 0, sizeof(cmd)); 1312248689Sian cmd.mrq = &req; 1313184033Smav req.cmd = &cmd; 1314338637Smarius if (sc->mode == mode_sd) 1315184033Smav cmd.opcode = SD_ERASE_WR_BLK_START; 1316184033Smav else 1317184033Smav cmd.opcode = MMC_ERASE_GROUP_START; 1318184033Smav cmd.arg = start; 1319322119Smarius if (sc->high_cap == 0) 1320184033Smav cmd.arg <<= 9; 1321184033Smav cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 1322322119Smarius MMCBUS_WAIT_FOR_REQUEST(mmcbus, dev, &req); 1323184033Smav if (req.cmd->error != MMC_ERR_NONE) { 1324322388Smarius device_printf(dev, "Setting erase start position failed %s\n", 1325322388Smarius mmcsd_errmsg(req.cmd->error)); 1326322119Smarius block = bp->bio_pblkno; 1327322119Smarius goto unpause; 1328184033Smav } 1329184033Smav /* Set erase stop position. */ 1330184033Smav memset(&req, 0, sizeof(req)); 1331184033Smav memset(&cmd, 0, sizeof(cmd)); 1332184033Smav req.cmd = &cmd; 1333338637Smarius if (sc->mode == mode_sd) 1334184033Smav cmd.opcode = SD_ERASE_WR_BLK_END; 1335184033Smav else 1336184033Smav cmd.opcode = MMC_ERASE_GROUP_END; 1337184033Smav cmd.arg = stop; 1338322119Smarius if (sc->high_cap == 0) 1339184033Smav cmd.arg <<= 9; 1340184033Smav cmd.arg--; 1341184033Smav cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 1342322119Smarius MMCBUS_WAIT_FOR_REQUEST(mmcbus, dev, &req); 1343184033Smav if (req.cmd->error != MMC_ERR_NONE) { 1344322388Smarius device_printf(dev, "Setting erase stop position failed %s\n", 1345322388Smarius mmcsd_errmsg(req.cmd->error)); 1346322119Smarius block = bp->bio_pblkno; 1347322119Smarius goto unpause; 1348184033Smav } 1349184033Smav /* Erase range. */ 1350184033Smav memset(&req, 0, sizeof(req)); 1351184033Smav memset(&cmd, 0, sizeof(cmd)); 1352184033Smav req.cmd = &cmd; 1353184033Smav cmd.opcode = MMC_ERASE; 1354322388Smarius cmd.arg = use_trim == true ? MMC_ERASE_TRIM : MMC_ERASE_ERASE; 1355184033Smav cmd.flags = MMC_RSP_R1B | MMC_CMD_AC; 1356322119Smarius MMCBUS_WAIT_FOR_REQUEST(mmcbus, dev, &req); 1357184033Smav if (req.cmd->error != MMC_ERR_NONE) { 1358322388Smarius device_printf(dev, "Issuing erase command failed %s\n", 1359322388Smarius mmcsd_errmsg(req.cmd->error)); 1360322119Smarius block = bp->bio_pblkno; 1361322119Smarius goto unpause; 1362184033Smav } 1363322388Smarius if (use_trim == false) { 1364322388Smarius /* Store one of the remaining parts for the next call. */ 1365322388Smarius if (bp->bio_pblkno >= part->eblock || block == start) { 1366322388Smarius part->eblock = stop; /* Predict next forward. */ 1367322388Smarius part->eend = end; 1368322388Smarius } else { 1369322388Smarius part->eblock = block; /* Predict next backward. */ 1370322388Smarius part->eend = start; 1371322388Smarius } 1372184034Smav } 1373322119Smarius block = end; 1374322119Smariusunpause: 1375322119Smarius MMCBUS_RETUNE_UNPAUSE(mmcbus, dev); 1376322119Smarius return (block); 1377184033Smav} 1378184033Smav 1379188725Smavstatic int 1380318197Smariusmmcsd_dump(void *arg, void *virtual, vm_offset_t physical, off_t offset, 1381318197Smarius size_t length) 1382188725Smav{ 1383188725Smav struct bio bp; 1384188725Smav daddr_t block, end; 1385318197Smarius struct disk *disk; 1386318197Smarius struct mmcsd_softc *sc; 1387318197Smarius struct mmcsd_part *part; 1388322119Smarius device_t dev, mmcbus; 1389318197Smarius int err; 1390188725Smav 1391338637Smarius disk = arg; 1392338637Smarius part = disk->d_drv1; 1393338637Smarius sc = part->sc; 1394338637Smarius 1395188725Smav /* length zero is special and really means flush buffers to media */ 1396338637Smarius if (length == 0) { 1397338637Smarius err = mmcsd_flush_cache(sc); 1398338637Smarius if (err != MMC_ERR_NONE) 1399338637Smarius return (EIO); 1400188725Smav return (0); 1401338637Smarius } 1402188725Smav 1403318197Smarius dev = sc->dev; 1404322119Smarius mmcbus = sc->mmcbus; 1405318197Smarius 1406295707Simp g_reset_bio(&bp); 1407188725Smav bp.bio_disk = disk; 1408188725Smav bp.bio_pblkno = offset / disk->d_sectorsize; 1409188725Smav bp.bio_bcount = length; 1410188725Smav bp.bio_data = virtual; 1411188725Smav bp.bio_cmd = BIO_WRITE; 1412318197Smarius end = bp.bio_pblkno + bp.bio_bcount / disk->d_sectorsize; 1413322119Smarius MMCBUS_ACQUIRE_BUS(mmcbus, dev); 1414322119Smarius err = mmcsd_switch_part(mmcbus, dev, sc->rca, part->type); 1415318197Smarius if (err != MMC_ERR_NONE) { 1416318197Smarius if (ppsratecheck(&sc->log_time, &sc->log_count, LOG_PPS)) 1417318197Smarius device_printf(dev, "Partition switch error\n"); 1418322119Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 1419318197Smarius return (EIO); 1420318197Smarius } 1421318197Smarius block = mmcsd_rw(part, &bp); 1422322119Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 1423188725Smav return ((end < block) ? EIO : 0); 1424188725Smav} 1425188725Smav 1426163516Simpstatic void 1427163516Simpmmcsd_task(void *arg) 1428163516Simp{ 1429318197Smarius daddr_t block, end; 1430318197Smarius struct mmcsd_part *part; 1431318197Smarius struct mmcsd_softc *sc; 1432163516Simp struct bio *bp; 1433322119Smarius device_t dev, mmcbus; 1434318197Smarius int err, sz; 1435163516Simp 1436318197Smarius part = arg; 1437318197Smarius sc = part->sc; 1438318197Smarius dev = sc->dev; 1439322119Smarius mmcbus = sc->mmcbus; 1440318197Smarius 1441185201Smav while (1) { 1442322119Smarius MMCSD_DISK_LOCK(part); 1443163516Simp do { 1444318197Smarius if (part->running == 0) 1445185201Smav goto out; 1446318197Smarius bp = bioq_takefirst(&part->bio_queue); 1447163516Simp if (bp == NULL) 1448322119Smarius msleep(part, &part->disk_mtx, PRIBIO, 1449322119Smarius "mmcsd disk jobqueue", 0); 1450185201Smav } while (bp == NULL); 1451322119Smarius MMCSD_DISK_UNLOCK(part); 1452338637Smarius if (__predict_false(bp->bio_cmd == BIO_FLUSH)) { 1453338637Smarius if (mmcsd_flush_cache(sc) != MMC_ERR_NONE) { 1454338637Smarius bp->bio_error = EIO; 1455338637Smarius bp->bio_flags |= BIO_ERROR; 1456338637Smarius } 1457338637Smarius biodone(bp); 1458338637Smarius continue; 1459338637Smarius } 1460318197Smarius if (bp->bio_cmd != BIO_READ && part->ro) { 1461183448Simp bp->bio_error = EROFS; 1462183448Simp bp->bio_resid = bp->bio_bcount; 1463183448Simp bp->bio_flags |= BIO_ERROR; 1464183448Simp biodone(bp); 1465183448Simp continue; 1466183448Simp } 1467322119Smarius MMCBUS_ACQUIRE_BUS(mmcbus, dev); 1468318197Smarius sz = part->disk->d_sectorsize; 1469184033Smav block = bp->bio_pblkno; 1470163516Simp end = bp->bio_pblkno + (bp->bio_bcount / sz); 1471322119Smarius err = mmcsd_switch_part(mmcbus, dev, sc->rca, part->type); 1472318197Smarius if (err != MMC_ERR_NONE) { 1473318197Smarius if (ppsratecheck(&sc->log_time, &sc->log_count, 1474318197Smarius LOG_PPS)) 1475318197Smarius device_printf(dev, "Partition switch error\n"); 1476318197Smarius goto release; 1477318197Smarius } 1478184033Smav if (bp->bio_cmd == BIO_READ || bp->bio_cmd == BIO_WRITE) { 1479184034Smav /* Access to the remaining erase block obsoletes it. */ 1480318197Smarius if (block < part->eend && end > part->eblock) 1481318197Smarius part->eblock = part->eend = 0; 1482318197Smarius block = mmcsd_rw(part, bp); 1483184033Smav } else if (bp->bio_cmd == BIO_DELETE) { 1484318197Smarius block = mmcsd_delete(part, bp); 1485163516Simp } 1486318197Smariusrelease: 1487322119Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 1488183480Simp if (block < end) { 1489183480Simp bp->bio_error = EIO; 1490183480Simp bp->bio_resid = (end - block) * sz; 1491183480Simp bp->bio_flags |= BIO_ERROR; 1492312399Smarius } else { 1493312399Smarius bp->bio_resid = 0; 1494183480Simp } 1495163516Simp biodone(bp); 1496163516Simp } 1497185201Smavout: 1498169567Simp /* tell parent we're done */ 1499318197Smarius part->running = -1; 1500322119Smarius MMCSD_DISK_UNLOCK(part); 1501318197Smarius wakeup(part); 1502169567Simp 1503172836Sjulian kproc_exit(0); 1504163516Simp} 1505163516Simp 1506183774Simpstatic int 1507183774Simpmmcsd_bus_bit_width(device_t dev) 1508183774Simp{ 1509236491Smarius 1510183774Simp if (mmc_get_bus_width(dev) == bus_width_1) 1511183774Simp return (1); 1512183774Simp if (mmc_get_bus_width(dev) == bus_width_4) 1513183774Simp return (4); 1514183774Simp return (8); 1515183774Simp} 1516183774Simp 1517338637Smariusstatic int 1518338637Smariusmmcsd_flush_cache(struct mmcsd_softc *sc) 1519338637Smarius{ 1520338637Smarius device_t dev, mmcbus; 1521338637Smarius int err; 1522338637Smarius 1523338637Smarius if ((sc->flags & MMCSD_FLUSH_CACHE) == 0) 1524338637Smarius return (MMC_ERR_NONE); 1525338637Smarius 1526338637Smarius dev = sc->dev; 1527338637Smarius mmcbus = sc->mmcbus; 1528338637Smarius MMCBUS_ACQUIRE_BUS(mmcbus, dev); 1529338637Smarius if ((sc->flags & MMCSD_DIRTY) == 0) { 1530338637Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 1531338637Smarius return (MMC_ERR_NONE); 1532338637Smarius } 1533338637Smarius err = mmc_switch(mmcbus, dev, sc->rca, EXT_CSD_CMD_SET_NORMAL, 1534338637Smarius EXT_CSD_FLUSH_CACHE, EXT_CSD_FLUSH_CACHE_FLUSH, 60 * 1000, true); 1535338637Smarius if (err == MMC_ERR_NONE) 1536338637Smarius sc->flags &= ~MMCSD_DIRTY; 1537338637Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 1538338637Smarius return (err); 1539338637Smarius} 1540338637Smarius 1541163516Simpstatic device_method_t mmcsd_methods[] = { 1542163516Simp DEVMETHOD(device_probe, mmcsd_probe), 1543163516Simp DEVMETHOD(device_attach, mmcsd_attach), 1544163516Simp DEVMETHOD(device_detach, mmcsd_detach), 1545338637Smarius DEVMETHOD(device_shutdown, mmcsd_shutdown), 1546185721Smav DEVMETHOD(device_suspend, mmcsd_suspend), 1547185721Smav DEVMETHOD(device_resume, mmcsd_resume), 1548234524Smarius DEVMETHOD_END 1549163516Simp}; 1550163516Simp 1551163516Simpstatic driver_t mmcsd_driver = { 1552163516Simp "mmcsd", 1553163516Simp mmcsd_methods, 1554163516Simp sizeof(struct mmcsd_softc), 1555163516Simp}; 1556163516Simpstatic devclass_t mmcsd_devclass; 1557163516Simp 1558318197Smariusstatic int 1559318197Smariusmmcsd_handler(module_t mod __unused, int what, void *arg __unused) 1560318197Smarius{ 1561318197Smarius 1562318197Smarius switch (what) { 1563318197Smarius case MOD_LOAD: 1564318197Smarius flash_register_slicer(mmcsd_slicer, FLASH_SLICES_TYPE_MMC, 1565318197Smarius TRUE); 1566318197Smarius return (0); 1567318197Smarius case MOD_UNLOAD: 1568318197Smarius flash_register_slicer(NULL, FLASH_SLICES_TYPE_MMC, TRUE); 1569318197Smarius return (0); 1570318197Smarius } 1571318197Smarius return (0); 1572318197Smarius} 1573318197Smarius 1574318197SmariusDRIVER_MODULE(mmcsd, mmc, mmcsd_driver, mmcsd_devclass, mmcsd_handler, NULL); 1575318197SmariusMODULE_DEPEND(mmcsd, g_flashmap, 0, 0, 0); 1576318197SmariusMMC_DEPEND(mmcsd); 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