1163516Simp/*- 2163516Simp * Copyright (c) 2006 Bernd Walter. All rights reserved. 3163516Simp * Copyright (c) 2006 M. Warner Losh. All rights reserved. 4318198Smarius * 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/10/sys/dev/mmc/mmcsd.c 338638 2018-09-13 10:18:50Z 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> 62338638Smarius#include <sys/endian.h> 63318198Smarius#include <sys/fcntl.h> 64318198Smarius#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> 71338638Smarius#include <sys/priv.h> 72318198Smarius#include <sys/slicer.h> 73338638Smarius#include <sys/sysctl.h> 74278687Sian#include <sys/time.h> 75318198Smarius 76318198Smarius#include <geom/geom.h> 77163516Simp#include <geom/geom_disk.h> 78163516Simp 79318198Smarius#include <dev/mmc/bridge.h> 80318198Smarius#include <dev/mmc/mmc_ioctl.h> 81318198Smarius#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 93318198Smarius#define MMCSD_CMD_RETRIES 5 94318198Smarius 95318198Smarius#define MMCSD_FMT_BOOT "mmcsd%dboot" 96318198Smarius#define MMCSD_FMT_GP "mmcsd%dgp" 97318198Smarius#define MMCSD_FMT_RPMB "mmcsd%drpmb" 98318198Smarius#define MMCSD_LABEL_ENH "enh" 99318198Smarius 100318198Smarius#define MMCSD_PART_NAMELEN (16 + 1) 101318198Smarius 102318198Smariusstruct mmcsd_softc; 103318198Smarius 104318198Smariusstruct mmcsd_part { 105322120Smarius struct mtx disk_mtx; 106322120Smarius struct mtx ioctl_mtx; 107318198Smarius 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. */ 112318198Smarius u_int cnt; 113318198Smarius u_int type; 114169567Simp int running; 115185721Smav int suspend; 116322120Smarius int ioctl; 117318198Smarius bool ro; 118318198Smarius char name[MMCSD_PART_NAMELEN]; 119318198Smarius}; 120318198Smarius 121318198Smariusstruct mmcsd_softc { 122318198Smarius device_t dev; 123322120Smarius device_t mmcbus; 124318198Smarius struct mmcsd_part *part[MMC_PART_MAX]; 125318198Smarius enum mmc_card_mode mode; 126322120Smarius u_int max_data; /* Maximum data size [blocks] */ 127322120Smarius u_int erase_sector; /* Device native erase sector size [blocks] */ 128322120Smarius uint8_t high_cap; /* High Capacity device (block addressed) */ 129318198Smarius uint8_t part_curr; /* Partition currently switched to */ 130318198Smarius uint8_t ext_csd[MMC_EXTCSD_SIZE]; 131318198Smarius uint16_t rca; 132322389Smarius uint32_t flags; 133322389Smarius#define MMCSD_INAND_CMD38 0x0001 134322389Smarius#define MMCSD_USE_TRIM 0x0002 135338638Smarius#define MMCSD_FLUSH_CACHE 0x0004 136338638Smarius#define MMCSD_DIRTY 0x0008 137322389Smarius uint32_t cmd6_time; /* Generic switch timeout [us] */ 138318198Smarius uint32_t part_time; /* Partition switch timeout [us] */ 139318198Smarius off_t enh_base; /* Enhanced user data area slice base ... */ 140318198Smarius off_t enh_size; /* ... and size [bytes] */ 141278687Sian int log_count; 142278687Sian struct timeval log_time; 143318198Smarius 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 157338638Smariusstatic SYSCTL_NODE(_hw, OID_AUTO, mmcsd, CTLFLAG_RD, NULL, "mmcsd driver"); 158338638Smarius 159338638Smariusstatic int mmcsd_cache = 1; 160338638SmariusTUNABLE_INT("hw.mmcsd.cache", &mmcsd_cache); 161338638SmariusSYSCTL_INT(_hw_mmcsd, OID_AUTO, cache, CTLFLAG_RDTUN, &mmcsd_cache, 0, 162338638Smarius "Device R/W cache enabled if present"); 163338638Smarius 164278687Sian#define LOG_PPS 5 /* Log no more than 5 errors per second. */ 165278687Sian 166163516Simp/* bus entry points */ 167163516Simpstatic int mmcsd_attach(device_t dev); 168163516Simpstatic int mmcsd_detach(device_t dev); 169236491Smariusstatic int mmcsd_probe(device_t dev); 170338638Smariusstatic int mmcsd_shutdown(device_t dev); 171163516Simp 172163516Simp/* disk routines */ 173163516Simpstatic int mmcsd_close(struct disk *dp); 174188725Smavstatic int mmcsd_dump(void *arg, void *virtual, vm_offset_t physical, 175318198Smarius off_t offset, size_t length); 176318198Smariusstatic int mmcsd_getattr(struct bio *); 177318198Smariusstatic int mmcsd_ioctl_disk(struct disk *disk, u_long cmd, void *data, 178318198Smarius int fflag, struct thread *td); 179236491Smariusstatic void mmcsd_strategy(struct bio *bp); 180163516Simpstatic void mmcsd_task(void *arg); 181163516Simp 182318198Smarius/* RMPB cdev interface */ 183318198Smariusstatic int mmcsd_ioctl_rpmb(struct cdev *dev, u_long cmd, caddr_t data, 184318198Smarius int fflag, struct thread *td); 185318198Smarius 186318198Smariusstatic void mmcsd_add_part(struct mmcsd_softc *sc, u_int type, 187322389Smarius const char *name, u_int cnt, off_t media_size, bool ro); 188183774Simpstatic int mmcsd_bus_bit_width(device_t dev); 189318198Smariusstatic daddr_t mmcsd_delete(struct mmcsd_part *part, struct bio *bp); 190322389Smariusstatic const char *mmcsd_errmsg(int e); 191338638Smariusstatic int mmcsd_flush_cache(struct mmcsd_softc *sc); 192318198Smariusstatic int mmcsd_ioctl(struct mmcsd_part *part, u_long cmd, void *data, 193338638Smarius int fflag, struct thread *td); 194318198Smariusstatic int mmcsd_ioctl_cmd(struct mmcsd_part *part, struct mmc_ioc_cmd *mic, 195318198Smarius int fflag); 196318198Smariusstatic uintmax_t mmcsd_pretty_size(off_t size, char *unit); 197318198Smariusstatic daddr_t mmcsd_rw(struct mmcsd_part *part, struct bio *bp); 198318198Smariusstatic int mmcsd_set_blockcount(struct mmcsd_softc *sc, u_int count, bool rel); 199318198Smariusstatic int mmcsd_slicer(device_t dev, const char *provider, 200318198Smarius struct flash_slice *slices, int *nslices); 201318198Smariusstatic int mmcsd_switch_part(device_t bus, device_t dev, uint16_t rca, 202318198Smarius u_int part); 203183774Simp 204322120Smarius#define MMCSD_DISK_LOCK(_part) mtx_lock(&(_part)->disk_mtx) 205322120Smarius#define MMCSD_DISK_UNLOCK(_part) mtx_unlock(&(_part)->disk_mtx) 206322120Smarius#define MMCSD_DISK_LOCK_INIT(_part) \ 207322120Smarius mtx_init(&(_part)->disk_mtx, (_part)->name, "mmcsd disk", MTX_DEF) 208322120Smarius#define MMCSD_DISK_LOCK_DESTROY(_part) mtx_destroy(&(_part)->disk_mtx); 209322120Smarius#define MMCSD_DISK_ASSERT_LOCKED(_part) \ 210322120Smarius mtx_assert(&(_part)->disk_mtx, MA_OWNED); 211322120Smarius#define MMCSD_DISK_ASSERT_UNLOCKED(_part) \ 212322120Smarius mtx_assert(&(_part)->disk_mtx, MA_NOTOWNED); 213163516Simp 214322120Smarius#define MMCSD_IOCTL_LOCK(_part) mtx_lock(&(_part)->ioctl_mtx) 215322120Smarius#define MMCSD_IOCTL_UNLOCK(_part) mtx_unlock(&(_part)->ioctl_mtx) 216322120Smarius#define MMCSD_IOCTL_LOCK_INIT(_part) \ 217322120Smarius mtx_init(&(_part)->ioctl_mtx, (_part)->name, "mmcsd IOCTL", MTX_DEF) 218322120Smarius#define MMCSD_IOCTL_LOCK_DESTROY(_part) mtx_destroy(&(_part)->ioctl_mtx); 219322120Smarius#define MMCSD_IOCTL_ASSERT_LOCKED(_part) \ 220322120Smarius mtx_assert(&(_part)->ioctl_mtx, MA_OWNED); 221322120Smarius#define MMCSD_IOCLT_ASSERT_UNLOCKED(_part) \ 222322120Smarius mtx_assert(&(_part)->ioctl_mtx, MA_NOTOWNED); 223322120Smarius 224163516Simpstatic int 225163516Simpmmcsd_probe(device_t dev) 226163516Simp{ 227163516Simp 228183704Smav device_quiet(dev); 229183480Simp device_set_desc(dev, "MMC/SD Memory Card"); 230163516Simp return (0); 231163516Simp} 232163516Simp 233163516Simpstatic int 234163516Simpmmcsd_attach(device_t dev) 235163516Simp{ 236322120Smarius device_t mmcbus; 237163516Simp struct mmcsd_softc *sc; 238318198Smarius const uint8_t *ext_csd; 239318198Smarius off_t erase_size, sector_size, size, wp_size; 240318198Smarius uintmax_t bytes; 241318198Smarius int err, i; 242322389Smarius uint32_t quirks; 243318198Smarius uint8_t rev; 244318198Smarius bool comp, ro; 245318198Smarius char unit[2]; 246163516Simp 247163516Simp sc = device_get_softc(dev); 248163516Simp sc->dev = dev; 249322120Smarius sc->mmcbus = mmcbus = device_get_parent(dev); 250338638Smarius sc->mode = mmc_get_card_type(dev); 251322120Smarius /* 252322120Smarius * Note that in principle with an SDHCI-like re-tuning implementation, 253322120Smarius * the maximum data size can change at runtime due to a device removal/ 254322120Smarius * insertion that results in switches to/from a transfer mode involving 255322120Smarius * re-tuning, iff there are multiple devices on a given bus. Until now 256322120Smarius * mmc(4) lacks support for rescanning already attached buses, however, 257322120Smarius * and sdhci(4) to date has no support for shared buses in the first 258322120Smarius * place either. 259322120Smarius */ 260322120Smarius sc->max_data = mmc_get_max_data(dev); 261322120Smarius sc->high_cap = mmc_get_high_cap(dev); 262318198Smarius sc->rca = mmc_get_rca(dev); 263322389Smarius sc->cmd6_time = mmc_get_cmd6_timeout(dev); 264322389Smarius quirks = mmc_get_quirks(dev); 265163516Simp 266318198Smarius /* Only MMC >= 4.x devices support EXT_CSD. */ 267318198Smarius if (mmc_get_spec_vers(dev) >= 4) { 268322120Smarius MMCBUS_ACQUIRE_BUS(mmcbus, dev); 269322120Smarius err = mmc_send_ext_csd(mmcbus, dev, sc->ext_csd); 270322120Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 271322389Smarius if (err != MMC_ERR_NONE) { 272322389Smarius device_printf(dev, "Error reading EXT_CSD %s\n", 273322389Smarius mmcsd_errmsg(err)); 274322389Smarius return (ENXIO); 275322389Smarius } 276318198Smarius } 277318198Smarius ext_csd = sc->ext_csd; 278269795Sian 279322389Smarius if ((quirks & MMC_QUIRK_INAND_CMD38) != 0) { 280322389Smarius if (mmc_get_spec_vers(dev) < 4) { 281322389Smarius device_printf(dev, 282322389Smarius "MMC_QUIRK_INAND_CMD38 set but no EXT_CSD\n"); 283322389Smarius return (EINVAL); 284322389Smarius } 285322389Smarius sc->flags |= MMCSD_INAND_CMD38; 286322389Smarius } 287322389Smarius 288183774Simp /* 289322389Smarius * EXT_CSD_SEC_FEATURE_SUPPORT_GB_CL_EN denotes support for both 290322389Smarius * insecure and secure TRIM. 291322389Smarius */ 292322389Smarius if ((ext_csd[EXT_CSD_SEC_FEATURE_SUPPORT] & 293322389Smarius EXT_CSD_SEC_FEATURE_SUPPORT_GB_CL_EN) != 0 && 294322389Smarius (quirks & MMC_QUIRK_BROKEN_TRIM) == 0) { 295322389Smarius if (bootverbose) 296322389Smarius device_printf(dev, "taking advantage of TRIM\n"); 297322389Smarius sc->flags |= MMCSD_USE_TRIM; 298322389Smarius sc->erase_sector = 1; 299322389Smarius } else 300322389Smarius sc->erase_sector = mmc_get_erase_sector(dev); 301322389Smarius 302322389Smarius /* 303318198Smarius * Enhanced user data area and general purpose partitions are only 304318198Smarius * supported in revision 1.4 (EXT_CSD_REV == 4) and later, the RPMB 305318198Smarius * partition in revision 1.5 (MMC v4.41, EXT_CSD_REV == 5) and later. 306183774Simp */ 307318198Smarius rev = ext_csd[EXT_CSD_REV]; 308318198Smarius 309318198Smarius /* 310338638Smarius * With revision 1.5 (MMC v4.5, EXT_CSD_REV == 6) and later, take 311338638Smarius * advantage of the device R/W cache if present and useage is not 312338638Smarius * disabled. 313338638Smarius */ 314338638Smarius if (rev >= 6 && mmcsd_cache != 0) { 315338638Smarius size = le32dec(&ext_csd[EXT_CSD_CACHE_SIZE]); 316338638Smarius if (bootverbose) 317338638Smarius device_printf(dev, "cache size %juKB\n", size); 318338638Smarius if (size > 0) { 319338638Smarius MMCBUS_ACQUIRE_BUS(mmcbus, dev); 320338638Smarius err = mmc_switch(mmcbus, dev, sc->rca, 321338638Smarius EXT_CSD_CMD_SET_NORMAL, EXT_CSD_CACHE_CTRL, 322338638Smarius EXT_CSD_CACHE_CTRL_CACHE_EN, sc->cmd6_time, true); 323338638Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 324338638Smarius if (err != MMC_ERR_NONE) 325338638Smarius device_printf(dev, "failed to enable cache\n"); 326338638Smarius else 327338638Smarius sc->flags |= MMCSD_FLUSH_CACHE; 328338638Smarius } 329338638Smarius } 330338638Smarius 331338638Smarius /* 332318198Smarius * Ignore user-creatable enhanced user data area and general purpose 333318198Smarius * partitions partitions as long as partitioning hasn't been finished. 334318198Smarius */ 335318198Smarius comp = (ext_csd[EXT_CSD_PART_SET] & EXT_CSD_PART_SET_COMPLETED) != 0; 336318198Smarius 337318198Smarius /* 338318198Smarius * Add enhanced user data area slice, unless it spans the entirety of 339318198Smarius * the user data area. The enhanced area is of a multiple of high 340318198Smarius * capacity write protect groups ((ERASE_GRP_SIZE + HC_WP_GRP_SIZE) * 341318198Smarius * 512 KB) and its offset given in either sectors or bytes, depending 342318198Smarius * on whether it's a high capacity device or not. 343318198Smarius * NB: The slicer and its slices need to be registered before adding 344318198Smarius * the disk for the corresponding user data area as re-tasting is 345318198Smarius * racy. 346318198Smarius */ 347318198Smarius sector_size = mmc_get_sector_size(dev); 348318198Smarius size = ext_csd[EXT_CSD_ENH_SIZE_MULT] + 349318198Smarius (ext_csd[EXT_CSD_ENH_SIZE_MULT + 1] << 8) + 350318198Smarius (ext_csd[EXT_CSD_ENH_SIZE_MULT + 2] << 16); 351318198Smarius if (rev >= 4 && comp == TRUE && size > 0 && 352318198Smarius (ext_csd[EXT_CSD_PART_SUPPORT] & 353318198Smarius EXT_CSD_PART_SUPPORT_ENH_ATTR_EN) != 0 && 354318198Smarius (ext_csd[EXT_CSD_PART_ATTR] & (EXT_CSD_PART_ATTR_ENH_USR)) != 0) { 355318198Smarius erase_size = ext_csd[EXT_CSD_ERASE_GRP_SIZE] * 1024 * 356318198Smarius MMC_SECTOR_SIZE; 357318198Smarius wp_size = ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; 358318198Smarius size *= erase_size * wp_size; 359318198Smarius if (size != mmc_get_media_size(dev) * sector_size) { 360318198Smarius sc->enh_size = size; 361338638Smarius sc->enh_base = 362338638Smarius le32dec(&ext_csd[EXT_CSD_ENH_START_ADDR]) * 363322120Smarius (sc->high_cap != 0 ? MMC_SECTOR_SIZE : 1); 364318198Smarius } else if (bootverbose) 365318198Smarius device_printf(dev, 366318198Smarius "enhanced user data area spans entire device\n"); 367183774Simp } 368318198Smarius 369234524Smarius /* 370318198Smarius * Add default partition. This may be the only one or the user 371318198Smarius * data area in case partitions are supported. 372234524Smarius */ 373318198Smarius ro = mmc_get_read_only(dev); 374318198Smarius mmcsd_add_part(sc, EXT_CSD_PART_CONFIG_ACC_DEFAULT, "mmcsd", 375322389Smarius device_get_unit(dev), mmc_get_media_size(dev) * sector_size, ro); 376169567Simp 377318198Smarius if (mmc_get_spec_vers(dev) < 3) 378318198Smarius return (0); 379163516Simp 380318198Smarius /* Belatedly announce enhanced user data slice. */ 381318198Smarius if (sc->enh_size != 0) { 382318198Smarius bytes = mmcsd_pretty_size(size, unit); 383318198Smarius printf(FLASH_SLICES_FMT ": %ju%sB enhanced user data area " 384318198Smarius "slice offset 0x%jx at %s\n", device_get_nameunit(dev), 385318198Smarius MMCSD_LABEL_ENH, bytes, unit, (uintmax_t)sc->enh_base, 386318198Smarius device_get_nameunit(dev)); 387318198Smarius } 388318198Smarius 389318198Smarius /* 390318198Smarius * Determine partition switch timeout (provided in units of 10 ms) 391318198Smarius * and ensure it's at least 300 ms as some eMMC chips lie. 392318198Smarius */ 393318198Smarius sc->part_time = max(ext_csd[EXT_CSD_PART_SWITCH_TO] * 10 * 1000, 394318198Smarius 300 * 1000); 395318198Smarius 396318198Smarius /* Add boot partitions, which are of a fixed multiple of 128 KB. */ 397318198Smarius size = ext_csd[EXT_CSD_BOOT_SIZE_MULT] * MMC_BOOT_RPMB_BLOCK_SIZE; 398322120Smarius if (size > 0 && (mmcbr_get_caps(mmcbus) & MMC_CAP_BOOT_NOACC) == 0) { 399318198Smarius mmcsd_add_part(sc, EXT_CSD_PART_CONFIG_ACC_BOOT0, 400322389Smarius MMCSD_FMT_BOOT, 0, size, 401318198Smarius ro | ((ext_csd[EXT_CSD_BOOT_WP_STATUS] & 402318198Smarius EXT_CSD_BOOT_WP_STATUS_BOOT0_MASK) != 0)); 403318198Smarius mmcsd_add_part(sc, EXT_CSD_PART_CONFIG_ACC_BOOT1, 404322389Smarius MMCSD_FMT_BOOT, 1, size, 405318198Smarius ro | ((ext_csd[EXT_CSD_BOOT_WP_STATUS] & 406318198Smarius EXT_CSD_BOOT_WP_STATUS_BOOT1_MASK) != 0)); 407318198Smarius } 408318198Smarius 409318198Smarius /* Add RPMB partition, which also is of a fixed multiple of 128 KB. */ 410318198Smarius size = ext_csd[EXT_CSD_RPMB_MULT] * MMC_BOOT_RPMB_BLOCK_SIZE; 411318198Smarius if (rev >= 5 && size > 0) 412318198Smarius mmcsd_add_part(sc, EXT_CSD_PART_CONFIG_ACC_RPMB, 413322389Smarius MMCSD_FMT_RPMB, 0, size, ro); 414318198Smarius 415318198Smarius if (rev <= 3 || comp == FALSE) 416318198Smarius return (0); 417318198Smarius 418318198Smarius /* 419318198Smarius * Add general purpose partitions, which are of a multiple of high 420318198Smarius * capacity write protect groups, too. 421318198Smarius */ 422318198Smarius if ((ext_csd[EXT_CSD_PART_SUPPORT] & EXT_CSD_PART_SUPPORT_EN) != 0) { 423318198Smarius erase_size = ext_csd[EXT_CSD_ERASE_GRP_SIZE] * 1024 * 424318198Smarius MMC_SECTOR_SIZE; 425318198Smarius wp_size = ext_csd[EXT_CSD_HC_WP_GRP_SIZE]; 426318198Smarius for (i = 0; i < MMC_PART_GP_MAX; i++) { 427318198Smarius size = ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3] + 428318198Smarius (ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3 + 1] << 8) + 429318198Smarius (ext_csd[EXT_CSD_GP_SIZE_MULT + i * 3 + 2] << 16); 430318198Smarius if (size == 0) 431318198Smarius continue; 432318198Smarius mmcsd_add_part(sc, EXT_CSD_PART_CONFIG_ACC_GP0 + i, 433322389Smarius MMCSD_FMT_GP, i, size * erase_size * wp_size, ro); 434318198Smarius } 435318198Smarius } 436163516Simp return (0); 437163516Simp} 438163516Simp 439318198Smariusstatic uintmax_t 440318198Smariusmmcsd_pretty_size(off_t size, char *unit) 441318198Smarius{ 442318198Smarius uintmax_t bytes; 443318198Smarius int i; 444318198Smarius 445318198Smarius /* 446318198Smarius * Display in most natural units. There's no card < 1MB. However, 447318198Smarius * RPMB partitions occasionally are smaller than that, though. The 448318198Smarius * SD standard goes to 2 GiB due to its reliance on FAT, but the data 449318198Smarius * format supports up to 4 GiB and some card makers push it up to this 450318198Smarius * limit. The SDHC standard only goes to 32 GiB due to FAT32, but the 451318198Smarius * data format supports up to 2 TiB however. 2048 GB isn't too ugly, 452318198Smarius * so we note it in passing here and don't add the code to print TB). 453318198Smarius * Since these cards are sold in terms of MB and GB not MiB and GiB, 454318198Smarius * report them like that. We also round to the nearest unit, since 455318198Smarius * many cards are a few percent short, even of the power of 10 size. 456318198Smarius */ 457318198Smarius bytes = size; 458318198Smarius unit[0] = unit[1] = '\0'; 459318198Smarius for (i = 0; i <= 2 && bytes >= 1000; i++) { 460318198Smarius bytes = (bytes + 1000 / 2 - 1) / 1000; 461318198Smarius switch (i) { 462318198Smarius case 0: 463318198Smarius unit[0] = 'k'; 464318198Smarius break; 465318198Smarius case 1: 466318198Smarius unit[0] = 'M'; 467318198Smarius break; 468318198Smarius case 2: 469318198Smarius unit[0] = 'G'; 470318198Smarius break; 471318198Smarius default: 472318198Smarius break; 473318198Smarius } 474318198Smarius } 475318198Smarius return (bytes); 476318198Smarius} 477318198Smarius 478318198Smariusstatic struct cdevsw mmcsd_rpmb_cdevsw = { 479318198Smarius .d_version = D_VERSION, 480318198Smarius .d_name = "mmcsdrpmb", 481318198Smarius .d_ioctl = mmcsd_ioctl_rpmb 482318198Smarius}; 483318198Smarius 484318198Smariusstatic void 485318198Smariusmmcsd_add_part(struct mmcsd_softc *sc, u_int type, const char *name, u_int cnt, 486322389Smarius off_t media_size, bool ro) 487318198Smarius{ 488318198Smarius struct make_dev_args args; 489322120Smarius device_t dev, mmcbus; 490318198Smarius const char *ext; 491318198Smarius const uint8_t *ext_csd; 492318198Smarius struct mmcsd_part *part; 493318198Smarius struct disk *d; 494318198Smarius uintmax_t bytes; 495318198Smarius u_int gp; 496318198Smarius uint32_t speed; 497318198Smarius uint8_t extattr; 498318198Smarius bool enh; 499318198Smarius char unit[2]; 500318198Smarius 501318198Smarius dev = sc->dev; 502322120Smarius mmcbus = sc->mmcbus; 503318198Smarius part = sc->part[type] = malloc(sizeof(*part), M_DEVBUF, 504318198Smarius M_WAITOK | M_ZERO); 505318198Smarius part->sc = sc; 506318198Smarius part->cnt = cnt; 507318198Smarius part->type = type; 508318198Smarius part->ro = ro; 509318198Smarius snprintf(part->name, sizeof(part->name), name, device_get_unit(dev)); 510318198Smarius 511322120Smarius MMCSD_IOCTL_LOCK_INIT(part); 512322120Smarius 513322120Smarius /* 514322120Smarius * For the RPMB partition, allow IOCTL access only. 515322120Smarius * NB: If ever attaching RPMB partitions to disk(9), the re-tuning 516322120Smarius * implementation and especially its pausing need to be revisited, 517322120Smarius * because then re-tuning requests may be issued by the IOCTL half 518322120Smarius * of this driver while re-tuning is already paused by the disk(9) 519322120Smarius * one and vice versa. 520322120Smarius */ 521318198Smarius if (type == EXT_CSD_PART_CONFIG_ACC_RPMB) { 522318198Smarius make_dev_args_init(&args); 523318198Smarius args.mda_flags = MAKEDEV_CHECKNAME | MAKEDEV_WAITOK; 524318198Smarius args.mda_devsw = &mmcsd_rpmb_cdevsw; 525318198Smarius args.mda_uid = UID_ROOT; 526318198Smarius args.mda_gid = GID_OPERATOR; 527318198Smarius args.mda_mode = 0640; 528318198Smarius args.mda_si_drv1 = part; 529318198Smarius if (make_dev_s(&args, &sc->rpmb_dev, "%s", part->name) != 0) { 530318198Smarius device_printf(dev, "Failed to make RPMB device\n"); 531318198Smarius free(part, M_DEVBUF); 532318198Smarius return; 533318198Smarius } 534318198Smarius } else { 535322120Smarius MMCSD_DISK_LOCK_INIT(part); 536318198Smarius 537318198Smarius d = part->disk = disk_alloc(); 538318198Smarius d->d_close = mmcsd_close; 539318198Smarius d->d_strategy = mmcsd_strategy; 540318198Smarius d->d_ioctl = mmcsd_ioctl_disk; 541318198Smarius d->d_dump = mmcsd_dump; 542318198Smarius d->d_getattr = mmcsd_getattr; 543318198Smarius d->d_name = part->name; 544318198Smarius d->d_drv1 = part; 545318198Smarius d->d_sectorsize = mmc_get_sector_size(dev); 546322120Smarius d->d_maxsize = sc->max_data * d->d_sectorsize; 547318198Smarius d->d_mediasize = media_size; 548322389Smarius d->d_stripesize = sc->erase_sector * d->d_sectorsize; 549318198Smarius d->d_unit = cnt; 550318198Smarius d->d_flags = DISKFLAG_CANDELETE; 551338638Smarius if ((sc->flags & MMCSD_FLUSH_CACHE) != 0) 552338638Smarius d->d_flags |= DISKFLAG_CANFLUSHCACHE; 553322389Smarius d->d_delmaxsize = mmc_get_erase_sector(dev) * d->d_sectorsize; 554318198Smarius strlcpy(d->d_ident, mmc_get_card_sn_string(dev), 555318198Smarius sizeof(d->d_ident)); 556318198Smarius strlcpy(d->d_descr, mmc_get_card_id_string(dev), 557318198Smarius sizeof(d->d_descr)); 558318198Smarius d->d_rotation_rate = DISK_RR_NON_ROTATING; 559318198Smarius 560318198Smarius disk_create(d, DISK_VERSION); 561318198Smarius bioq_init(&part->bio_queue); 562318198Smarius 563318198Smarius part->running = 1; 564318198Smarius kproc_create(&mmcsd_task, part, &part->p, 0, 0, 565318198Smarius "%s%d: mmc/sd card", part->name, cnt); 566318198Smarius } 567318198Smarius 568318198Smarius bytes = mmcsd_pretty_size(media_size, unit); 569318198Smarius if (type == EXT_CSD_PART_CONFIG_ACC_DEFAULT) { 570322120Smarius speed = mmcbr_get_clock(mmcbus); 571318198Smarius printf("%s%d: %ju%sB <%s>%s at %s %d.%01dMHz/%dbit/%d-block\n", 572318198Smarius part->name, cnt, bytes, unit, mmc_get_card_id_string(dev), 573322120Smarius ro ? " (read-only)" : "", device_get_nameunit(mmcbus), 574318198Smarius speed / 1000000, (speed / 100000) % 10, 575322120Smarius mmcsd_bus_bit_width(dev), sc->max_data); 576318198Smarius } else if (type == EXT_CSD_PART_CONFIG_ACC_RPMB) { 577318198Smarius printf("%s: %ju%sB partion %d%s at %s\n", part->name, bytes, 578318198Smarius unit, type, ro ? " (read-only)" : "", 579318198Smarius device_get_nameunit(dev)); 580318198Smarius } else { 581318198Smarius enh = false; 582318198Smarius ext = NULL; 583318198Smarius extattr = 0; 584318198Smarius if (type >= EXT_CSD_PART_CONFIG_ACC_GP0 && 585318198Smarius type <= EXT_CSD_PART_CONFIG_ACC_GP3) { 586318198Smarius ext_csd = sc->ext_csd; 587318198Smarius gp = type - EXT_CSD_PART_CONFIG_ACC_GP0; 588318198Smarius if ((ext_csd[EXT_CSD_PART_SUPPORT] & 589318198Smarius EXT_CSD_PART_SUPPORT_ENH_ATTR_EN) != 0 && 590318198Smarius (ext_csd[EXT_CSD_PART_ATTR] & 591318198Smarius (EXT_CSD_PART_ATTR_ENH_GP0 << gp)) != 0) 592318198Smarius enh = true; 593318198Smarius else if ((ext_csd[EXT_CSD_PART_SUPPORT] & 594318198Smarius EXT_CSD_PART_SUPPORT_EXT_ATTR_EN) != 0) { 595318198Smarius extattr = (ext_csd[EXT_CSD_EXT_PART_ATTR + 596318198Smarius (gp / 2)] >> (4 * (gp % 2))) & 0xF; 597318198Smarius switch (extattr) { 598318198Smarius case EXT_CSD_EXT_PART_ATTR_DEFAULT: 599318198Smarius break; 600318198Smarius case EXT_CSD_EXT_PART_ATTR_SYSTEMCODE: 601318198Smarius ext = "system code"; 602318198Smarius break; 603318198Smarius case EXT_CSD_EXT_PART_ATTR_NPERSISTENT: 604318198Smarius ext = "non-persistent"; 605318198Smarius break; 606318198Smarius default: 607318198Smarius ext = "reserved"; 608318198Smarius break; 609318198Smarius } 610318198Smarius } 611318198Smarius } 612318198Smarius if (ext == NULL) 613318198Smarius printf("%s%d: %ju%sB partion %d%s%s at %s\n", 614318198Smarius part->name, cnt, bytes, unit, type, enh ? 615318198Smarius " enhanced" : "", ro ? " (read-only)" : "", 616318198Smarius device_get_nameunit(dev)); 617318198Smarius else 618318198Smarius printf("%s%d: %ju%sB partion %d extended 0x%x " 619318198Smarius "(%s)%s at %s\n", part->name, cnt, bytes, unit, 620318198Smarius type, extattr, ext, ro ? " (read-only)" : "", 621318198Smarius device_get_nameunit(dev)); 622318198Smarius } 623318198Smarius} 624318198Smarius 625163516Simpstatic int 626318198Smariusmmcsd_slicer(device_t dev, const char *provider, 627318198Smarius struct flash_slice *slices, int *nslices) 628318198Smarius{ 629318198Smarius char name[MMCSD_PART_NAMELEN]; 630318198Smarius struct mmcsd_softc *sc; 631318198Smarius struct mmcsd_part *part; 632318198Smarius 633318198Smarius *nslices = 0; 634318198Smarius if (slices == NULL) 635318198Smarius return (ENOMEM); 636318198Smarius 637318198Smarius sc = device_get_softc(dev); 638318198Smarius if (sc->enh_size == 0) 639318198Smarius return (ENXIO); 640318198Smarius 641318198Smarius part = sc->part[EXT_CSD_PART_CONFIG_ACC_DEFAULT]; 642318198Smarius snprintf(name, sizeof(name), "%s%d", part->disk->d_name, 643318198Smarius part->disk->d_unit); 644318198Smarius if (strcmp(name, provider) != 0) 645318198Smarius return (ENXIO); 646318198Smarius 647318198Smarius *nslices = 1; 648318198Smarius slices[0].base = sc->enh_base; 649318198Smarius slices[0].size = sc->enh_size; 650318198Smarius slices[0].label = MMCSD_LABEL_ENH; 651318198Smarius return (0); 652318198Smarius} 653318198Smarius 654318198Smariusstatic int 655163516Simpmmcsd_detach(device_t dev) 656163516Simp{ 657169567Simp struct mmcsd_softc *sc = device_get_softc(dev); 658318198Smarius struct mmcsd_part *part; 659318198Smarius int i; 660169567Simp 661318198Smarius for (i = 0; i < MMC_PART_MAX; i++) { 662318198Smarius part = sc->part[i]; 663322120Smarius if (part != NULL) { 664322120Smarius if (part->disk != NULL) { 665322120Smarius MMCSD_DISK_LOCK(part); 666322120Smarius part->suspend = 0; 667322120Smarius if (part->running > 0) { 668322120Smarius /* kill thread */ 669322120Smarius part->running = 0; 670322120Smarius wakeup(part); 671322120Smarius /* wait for thread to finish. */ 672322120Smarius while (part->running != -1) 673322120Smarius msleep(part, &part->disk_mtx, 0, 674322120Smarius "mmcsd disk detach", 0); 675322120Smarius } 676322120Smarius MMCSD_DISK_UNLOCK(part); 677318198Smarius } 678322120Smarius MMCSD_IOCTL_LOCK(part); 679322120Smarius while (part->ioctl > 0) 680322120Smarius msleep(part, &part->ioctl_mtx, 0, 681322120Smarius "mmcsd IOCTL detach", 0); 682322120Smarius part->ioctl = -1; 683322120Smarius MMCSD_IOCTL_UNLOCK(part); 684318198Smarius } 685185721Smav } 686169567Simp 687318198Smarius if (sc->rpmb_dev != NULL) 688318198Smarius destroy_dev(sc->rpmb_dev); 689169567Simp 690318198Smarius for (i = 0; i < MMC_PART_MAX; i++) { 691318198Smarius part = sc->part[i]; 692318198Smarius if (part != NULL) { 693318198Smarius if (part->disk != NULL) { 694318198Smarius /* Flush the request queue. */ 695318198Smarius bioq_flush(&part->bio_queue, NULL, ENXIO); 696318198Smarius /* kill disk */ 697318198Smarius disk_destroy(part->disk); 698169567Simp 699322120Smarius MMCSD_DISK_LOCK_DESTROY(part); 700318198Smarius } 701322120Smarius MMCSD_IOCTL_LOCK_DESTROY(part); 702318198Smarius free(part, M_DEVBUF); 703318198Smarius } 704318198Smarius } 705338638Smarius if (mmcsd_flush_cache(sc) != MMC_ERR_NONE) 706338638Smarius device_printf(dev, "failed to flush cache\n"); 707183467Simp return (0); 708163516Simp} 709163516Simp 710163516Simpstatic int 711338638Smariusmmcsd_shutdown(device_t dev) 712338638Smarius{ 713338638Smarius struct mmcsd_softc *sc = device_get_softc(dev); 714338638Smarius 715338638Smarius if (mmcsd_flush_cache(sc) != MMC_ERR_NONE) 716338638Smarius device_printf(dev, "failed to flush cache\n"); 717338638Smarius return (0); 718338638Smarius} 719338638Smarius 720338638Smariusstatic int 721185721Smavmmcsd_suspend(device_t dev) 722185721Smav{ 723185721Smav struct mmcsd_softc *sc = device_get_softc(dev); 724318198Smarius struct mmcsd_part *part; 725318198Smarius int i; 726185721Smav 727318198Smarius for (i = 0; i < MMC_PART_MAX; i++) { 728318198Smarius part = sc->part[i]; 729322120Smarius if (part != NULL) { 730322120Smarius if (part->disk != NULL) { 731322120Smarius MMCSD_DISK_LOCK(part); 732322120Smarius part->suspend = 1; 733322120Smarius if (part->running > 0) { 734322120Smarius /* kill thread */ 735322120Smarius part->running = 0; 736322120Smarius wakeup(part); 737322120Smarius /* wait for thread to finish. */ 738322120Smarius while (part->running != -1) 739322120Smarius msleep(part, &part->disk_mtx, 0, 740322120Smarius "mmcsd disk suspension", 0); 741322120Smarius } 742322120Smarius MMCSD_DISK_UNLOCK(part); 743318198Smarius } 744322120Smarius MMCSD_IOCTL_LOCK(part); 745322120Smarius while (part->ioctl > 0) 746322120Smarius msleep(part, &part->ioctl_mtx, 0, 747322120Smarius "mmcsd IOCTL suspension", 0); 748322120Smarius part->ioctl = -1; 749322120Smarius MMCSD_IOCTL_UNLOCK(part); 750318198Smarius } 751185721Smav } 752338638Smarius if (mmcsd_flush_cache(sc) != MMC_ERR_NONE) 753338638Smarius device_printf(dev, "failed to flush cache\n"); 754185721Smav return (0); 755185721Smav} 756185721Smav 757185721Smavstatic int 758185721Smavmmcsd_resume(device_t dev) 759185721Smav{ 760185721Smav struct mmcsd_softc *sc = device_get_softc(dev); 761318198Smarius struct mmcsd_part *part; 762318198Smarius int i; 763185721Smav 764318198Smarius for (i = 0; i < MMC_PART_MAX; i++) { 765318198Smarius part = sc->part[i]; 766322120Smarius if (part != NULL) { 767322120Smarius if (part->disk != NULL) { 768322120Smarius MMCSD_DISK_LOCK(part); 769322120Smarius part->suspend = 0; 770322120Smarius if (part->running <= 0) { 771322120Smarius part->running = 1; 772322120Smarius MMCSD_DISK_UNLOCK(part); 773322120Smarius kproc_create(&mmcsd_task, part, 774322120Smarius &part->p, 0, 0, "%s%d: mmc/sd card", 775322120Smarius part->name, part->cnt); 776322120Smarius } else 777322120Smarius MMCSD_DISK_UNLOCK(part); 778322120Smarius } 779322120Smarius MMCSD_IOCTL_LOCK(part); 780322120Smarius part->ioctl = 0; 781322120Smarius MMCSD_IOCTL_UNLOCK(part); 782318198Smarius } 783318198Smarius } 784185721Smav return (0); 785185721Smav} 786185721Smav 787185721Smavstatic int 788338638Smariusmmcsd_close(struct disk *dp) 789163516Simp{ 790338638Smarius struct mmcsd_softc *sc; 791236491Smarius 792338638Smarius if ((dp->d_flags & DISKFLAG_OPEN) != 0) { 793338638Smarius sc = ((struct mmcsd_part *)dp->d_drv1)->sc; 794338638Smarius if (mmcsd_flush_cache(sc) != MMC_ERR_NONE) 795338638Smarius device_printf(sc->dev, "failed to flush cache\n"); 796338638Smarius } 797183467Simp return (0); 798163516Simp} 799163516Simp 800163516Simpstatic void 801163516Simpmmcsd_strategy(struct bio *bp) 802163516Simp{ 803163516Simp struct mmcsd_softc *sc; 804318198Smarius struct mmcsd_part *part; 805163516Simp 806318198Smarius part = bp->bio_disk->d_drv1; 807318198Smarius sc = part->sc; 808322120Smarius MMCSD_DISK_LOCK(part); 809318198Smarius if (part->running > 0 || part->suspend > 0) { 810318198Smarius bioq_disksort(&part->bio_queue, bp); 811322120Smarius MMCSD_DISK_UNLOCK(part); 812318198Smarius wakeup(part); 813185201Smav } else { 814322120Smarius MMCSD_DISK_UNLOCK(part); 815185201Smav biofinish(bp, NULL, ENXIO); 816185201Smav } 817163516Simp} 818163516Simp 819318198Smariusstatic int 820318198Smariusmmcsd_ioctl_rpmb(struct cdev *dev, u_long cmd, caddr_t data, 821338638Smarius int fflag, struct thread *td) 822318198Smarius{ 823318198Smarius 824338638Smarius return (mmcsd_ioctl(dev->si_drv1, cmd, data, fflag, td)); 825318198Smarius} 826318198Smarius 827318198Smariusstatic int 828318198Smariusmmcsd_ioctl_disk(struct disk *disk, u_long cmd, void *data, int fflag, 829338638Smarius struct thread *td) 830318198Smarius{ 831318198Smarius 832338638Smarius return (mmcsd_ioctl(disk->d_drv1, cmd, data, fflag, td)); 833318198Smarius} 834318198Smarius 835318198Smariusstatic int 836338638Smariusmmcsd_ioctl(struct mmcsd_part *part, u_long cmd, void *data, int fflag, 837338638Smarius struct thread *td) 838318198Smarius{ 839318198Smarius struct mmc_ioc_cmd *mic; 840318198Smarius struct mmc_ioc_multi_cmd *mimc; 841318198Smarius int i, err; 842318198Smarius u_long cnt, size; 843318198Smarius 844318198Smarius if ((fflag & FREAD) == 0) 845318198Smarius return (EBADF); 846318198Smarius 847338638Smarius err = priv_check(td, PRIV_DRIVER); 848338638Smarius if (err != 0) 849338638Smarius return (err); 850338638Smarius 851318198Smarius err = 0; 852318198Smarius switch (cmd) { 853318198Smarius case MMC_IOC_CMD: 854318198Smarius mic = data; 855322120Smarius err = mmcsd_ioctl_cmd(part, mic, fflag); 856318198Smarius break; 857322120Smarius case MMC_IOC_MULTI_CMD: 858318198Smarius mimc = data; 859318198Smarius if (mimc->num_of_cmds == 0) 860318198Smarius break; 861318198Smarius if (mimc->num_of_cmds > MMC_IOC_MAX_CMDS) 862318198Smarius return (EINVAL); 863318198Smarius cnt = mimc->num_of_cmds; 864318198Smarius size = sizeof(*mic) * cnt; 865318198Smarius mic = malloc(size, M_TEMP, M_WAITOK); 866318198Smarius err = copyin((const void *)mimc->cmds, mic, size); 867322120Smarius if (err == 0) { 868322120Smarius for (i = 0; i < cnt; i++) { 869322120Smarius err = mmcsd_ioctl_cmd(part, &mic[i], fflag); 870322120Smarius if (err != 0) 871322120Smarius break; 872322120Smarius } 873318198Smarius } 874318198Smarius free(mic, M_TEMP); 875318198Smarius break; 876318198Smarius default: 877318198Smarius return (ENOIOCTL); 878318198Smarius } 879318198Smarius return (err); 880318198Smarius} 881318198Smarius 882318198Smariusstatic int 883318198Smariusmmcsd_ioctl_cmd(struct mmcsd_part *part, struct mmc_ioc_cmd *mic, int fflag) 884318198Smarius{ 885318198Smarius struct mmc_command cmd; 886318198Smarius struct mmc_data data; 887318198Smarius struct mmcsd_softc *sc; 888322120Smarius device_t dev, mmcbus; 889318198Smarius void *dp; 890318198Smarius u_long len; 891318198Smarius int err, retries; 892318198Smarius uint32_t status; 893318198Smarius uint16_t rca; 894318198Smarius 895318198Smarius if ((fflag & FWRITE) == 0 && mic->write_flag != 0) 896318198Smarius return (EBADF); 897318198Smarius 898318198Smarius if (part->ro == TRUE && mic->write_flag != 0) 899318198Smarius return (EROFS); 900318198Smarius 901322120Smarius /* 902322120Smarius * We don't need to explicitly lock against the disk(9) half of this 903322120Smarius * driver as MMCBUS_ACQUIRE_BUS() will serialize us. However, it's 904322120Smarius * necessary to protect against races with detachment and suspension, 905322120Smarius * especially since it's required to switch away from RPMB partitions 906322120Smarius * again after an access (see mmcsd_switch_part()). 907322120Smarius */ 908322120Smarius MMCSD_IOCTL_LOCK(part); 909322120Smarius while (part->ioctl != 0) { 910322120Smarius if (part->ioctl < 0) { 911322120Smarius MMCSD_IOCTL_UNLOCK(part); 912322120Smarius return (ENXIO); 913322120Smarius } 914322120Smarius msleep(part, &part->ioctl_mtx, 0, "mmcsd IOCTL", 0); 915322120Smarius } 916322120Smarius part->ioctl = 1; 917322120Smarius MMCSD_IOCTL_UNLOCK(part); 918322120Smarius 919318198Smarius err = 0; 920318198Smarius dp = NULL; 921318198Smarius len = mic->blksz * mic->blocks; 922322120Smarius if (len > MMC_IOC_MAX_BYTES) { 923322120Smarius err = EOVERFLOW; 924322120Smarius goto out; 925322120Smarius } 926318198Smarius if (len != 0) { 927318198Smarius dp = malloc(len, M_TEMP, M_WAITOK); 928318198Smarius err = copyin((void *)(uintptr_t)mic->data_ptr, dp, len); 929318198Smarius if (err != 0) 930318198Smarius goto out; 931318198Smarius } 932318198Smarius memset(&cmd, 0, sizeof(cmd)); 933318198Smarius memset(&data, 0, sizeof(data)); 934318198Smarius cmd.opcode = mic->opcode; 935318198Smarius cmd.arg = mic->arg; 936318198Smarius cmd.flags = mic->flags; 937318198Smarius if (len != 0) { 938318198Smarius data.len = len; 939318198Smarius data.data = dp; 940318198Smarius data.flags = mic->write_flag != 0 ? MMC_DATA_WRITE : 941318198Smarius MMC_DATA_READ; 942318198Smarius cmd.data = &data; 943318198Smarius } 944318198Smarius sc = part->sc; 945318198Smarius rca = sc->rca; 946318198Smarius if (mic->is_acmd == 0) { 947318198Smarius /* Enforce/patch/restrict RCA-based commands */ 948318198Smarius switch (cmd.opcode) { 949318198Smarius case MMC_SET_RELATIVE_ADDR: 950318198Smarius case MMC_SELECT_CARD: 951318198Smarius err = EPERM; 952318198Smarius goto out; 953318198Smarius case MMC_STOP_TRANSMISSION: 954318198Smarius if ((cmd.arg & 0x1) == 0) 955318198Smarius break; 956318198Smarius /* FALLTHROUGH */ 957318198Smarius case MMC_SLEEP_AWAKE: 958318198Smarius case MMC_SEND_CSD: 959318198Smarius case MMC_SEND_CID: 960318198Smarius case MMC_SEND_STATUS: 961318198Smarius case MMC_GO_INACTIVE_STATE: 962318198Smarius case MMC_FAST_IO: 963318198Smarius case MMC_APP_CMD: 964318198Smarius cmd.arg = (cmd.arg & 0x0000FFFF) | (rca << 16); 965318198Smarius break; 966318198Smarius default: 967318198Smarius break; 968318198Smarius } 969331037Smarius /* 970331037Smarius * No partition switching in userland; it's almost impossible 971331037Smarius * to recover from that, especially if things go wrong. 972331037Smarius */ 973331037Smarius if (cmd.opcode == MMC_SWITCH_FUNC && dp != NULL && 974331037Smarius (((uint8_t *)dp)[EXT_CSD_PART_CONFIG] & 975331037Smarius EXT_CSD_PART_CONFIG_ACC_MASK) != part->type) { 976331037Smarius err = EINVAL; 977331037Smarius goto out; 978331037Smarius } 979318198Smarius } 980318198Smarius dev = sc->dev; 981322120Smarius mmcbus = sc->mmcbus; 982322120Smarius MMCBUS_ACQUIRE_BUS(mmcbus, dev); 983322120Smarius err = mmcsd_switch_part(mmcbus, dev, rca, part->type); 984318198Smarius if (err != MMC_ERR_NONE) 985318198Smarius goto release; 986318198Smarius if (part->type == EXT_CSD_PART_CONFIG_ACC_RPMB) { 987318198Smarius err = mmcsd_set_blockcount(sc, mic->blocks, 988318198Smarius mic->write_flag & (1 << 31)); 989318198Smarius if (err != MMC_ERR_NONE) 990322120Smarius goto switch_back; 991318198Smarius } 992338638Smarius if (mic->write_flag != 0) 993338638Smarius sc->flags |= MMCSD_DIRTY; 994318198Smarius if (mic->is_acmd != 0) 995322120Smarius (void)mmc_wait_for_app_cmd(mmcbus, dev, rca, &cmd, 0); 996318198Smarius else 997322120Smarius (void)mmc_wait_for_cmd(mmcbus, dev, &cmd, 0); 998318198Smarius if (part->type == EXT_CSD_PART_CONFIG_ACC_RPMB) { 999318198Smarius /* 1000318198Smarius * If the request went to the RPMB partition, try to ensure 1001331037Smarius * that the command actually has completed. 1002318198Smarius */ 1003318198Smarius retries = MMCSD_CMD_RETRIES; 1004318198Smarius do { 1005322120Smarius err = mmc_send_status(mmcbus, dev, rca, &status); 1006318198Smarius if (err != MMC_ERR_NONE) 1007318198Smarius break; 1008318198Smarius if (R1_STATUS(status) == 0 && 1009318198Smarius R1_CURRENT_STATE(status) != R1_STATE_PRG) 1010318198Smarius break; 1011318198Smarius DELAY(1000); 1012318198Smarius } while (retries-- > 0); 1013318198Smarius } 1014318198Smarius /* 1015318198Smarius * If EXT_CSD was changed, our copy is outdated now. Specifically, 1016318198Smarius * the upper bits of EXT_CSD_PART_CONFIG used in mmcsd_switch_part(), 1017318198Smarius * so retrieve EXT_CSD again. 1018318198Smarius */ 1019318198Smarius if (cmd.opcode == MMC_SWITCH_FUNC) { 1020322120Smarius err = mmc_send_ext_csd(mmcbus, dev, sc->ext_csd); 1021318198Smarius if (err != MMC_ERR_NONE) 1022318198Smarius goto release; 1023318198Smarius } 1024331037Smariusswitch_back: 1025331037Smarius if (part->type == EXT_CSD_PART_CONFIG_ACC_RPMB) { 1026331037Smarius /* 1027331037Smarius * If the request went to the RPMB partition, always switch 1028331037Smarius * back to the default partition (see mmcsd_switch_part()). 1029331037Smarius */ 1030331037Smarius err = mmcsd_switch_part(mmcbus, dev, rca, 1031331037Smarius EXT_CSD_PART_CONFIG_ACC_DEFAULT); 1032331037Smarius if (err != MMC_ERR_NONE) 1033331037Smarius goto release; 1034331037Smarius } 1035322120Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 1036318198Smarius if (cmd.error != MMC_ERR_NONE) { 1037318198Smarius switch (cmd.error) { 1038318198Smarius case MMC_ERR_TIMEOUT: 1039318198Smarius err = ETIMEDOUT; 1040318198Smarius break; 1041318198Smarius case MMC_ERR_BADCRC: 1042318198Smarius err = EILSEQ; 1043318198Smarius break; 1044318198Smarius case MMC_ERR_INVALID: 1045318198Smarius err = EINVAL; 1046318198Smarius break; 1047318198Smarius case MMC_ERR_NO_MEMORY: 1048318198Smarius err = ENOMEM; 1049318198Smarius break; 1050318198Smarius default: 1051318198Smarius err = EIO; 1052318198Smarius break; 1053318198Smarius } 1054318198Smarius goto out; 1055318198Smarius } 1056318198Smarius memcpy(mic->response, cmd.resp, 4 * sizeof(uint32_t)); 1057318198Smarius if (mic->write_flag == 0 && len != 0) { 1058318198Smarius err = copyout(dp, (void *)(uintptr_t)mic->data_ptr, len); 1059318198Smarius if (err != 0) 1060318198Smarius goto out; 1061318198Smarius } 1062318198Smarius goto out; 1063318198Smarius 1064318198Smariusrelease: 1065322120Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 1066318198Smarius err = EIO; 1067318198Smarius 1068318198Smariusout: 1069322120Smarius MMCSD_IOCTL_LOCK(part); 1070322120Smarius part->ioctl = 0; 1071322120Smarius MMCSD_IOCTL_UNLOCK(part); 1072322120Smarius wakeup(part); 1073318198Smarius if (dp != NULL) 1074318198Smarius free(dp, M_TEMP); 1075318198Smarius return (err); 1076318198Smarius} 1077318198Smarius 1078318198Smariusstatic int 1079318198Smariusmmcsd_getattr(struct bio *bp) 1080318198Smarius{ 1081318198Smarius struct mmcsd_part *part; 1082318198Smarius device_t dev; 1083318198Smarius 1084318198Smarius if (strcmp(bp->bio_attribute, "MMC::device") == 0) { 1085318198Smarius if (bp->bio_length != sizeof(dev)) 1086318198Smarius return (EFAULT); 1087318198Smarius part = bp->bio_disk->d_drv1; 1088318198Smarius dev = part->sc->dev; 1089318198Smarius bcopy(&dev, bp->bio_data, sizeof(dev)); 1090318198Smarius bp->bio_completed = bp->bio_length; 1091318198Smarius return (0); 1092318198Smarius } 1093318198Smarius return (-1); 1094318198Smarius} 1095318198Smarius 1096318198Smariusstatic int 1097318198Smariusmmcsd_set_blockcount(struct mmcsd_softc *sc, u_int count, bool reliable) 1098318198Smarius{ 1099318198Smarius struct mmc_command cmd; 1100318198Smarius struct mmc_request req; 1101318198Smarius 1102318198Smarius memset(&req, 0, sizeof(req)); 1103318198Smarius memset(&cmd, 0, sizeof(cmd)); 1104318198Smarius cmd.mrq = &req; 1105318198Smarius req.cmd = &cmd; 1106318198Smarius cmd.opcode = MMC_SET_BLOCK_COUNT; 1107318198Smarius cmd.arg = count & 0x0000FFFF; 1108318198Smarius if (reliable) 1109318198Smarius cmd.arg |= 1 << 31; 1110318198Smarius cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 1111322120Smarius MMCBUS_WAIT_FOR_REQUEST(sc->mmcbus, sc->dev, &req); 1112318198Smarius return (cmd.error); 1113318198Smarius} 1114318198Smarius 1115318198Smariusstatic int 1116318198Smariusmmcsd_switch_part(device_t bus, device_t dev, uint16_t rca, u_int part) 1117318198Smarius{ 1118318198Smarius struct mmcsd_softc *sc; 1119318198Smarius int err; 1120318198Smarius uint8_t value; 1121318198Smarius 1122318198Smarius sc = device_get_softc(dev); 1123318198Smarius 1124322120Smarius if (sc->mode == mode_sd) 1125318198Smarius return (MMC_ERR_NONE); 1126318198Smarius 1127322120Smarius /* 1128322120Smarius * According to section "6.2.2 Command restrictions" of the eMMC 1129322120Smarius * specification v5.1, CMD19/CMD21 aren't allowed to be used with 1130322120Smarius * RPMB partitions. So we pause re-tuning along with triggering 1131322120Smarius * it up-front to decrease the likelihood of re-tuning becoming 1132322120Smarius * necessary while accessing an RPMB partition. Consequently, an 1133322120Smarius * RPMB partition should immediately be switched away from again 1134322120Smarius * after an access in order to allow for re-tuning to take place 1135322120Smarius * anew. 1136322120Smarius */ 1137322120Smarius if (part == EXT_CSD_PART_CONFIG_ACC_RPMB) 1138322120Smarius MMCBUS_RETUNE_PAUSE(sc->mmcbus, sc->dev, true); 1139322120Smarius 1140322120Smarius if (sc->part_curr == part) 1141318198Smarius return (MMC_ERR_NONE); 1142318198Smarius 1143318198Smarius value = (sc->ext_csd[EXT_CSD_PART_CONFIG] & 1144318198Smarius ~EXT_CSD_PART_CONFIG_ACC_MASK) | part; 1145318198Smarius /* Jump! */ 1146318198Smarius err = mmc_switch(bus, dev, rca, EXT_CSD_CMD_SET_NORMAL, 1147318198Smarius EXT_CSD_PART_CONFIG, value, sc->part_time, true); 1148322120Smarius if (err != MMC_ERR_NONE) { 1149322120Smarius if (part == EXT_CSD_PART_CONFIG_ACC_RPMB) 1150322120Smarius MMCBUS_RETUNE_UNPAUSE(sc->mmcbus, sc->dev); 1151318198Smarius return (err); 1152322120Smarius } 1153318198Smarius 1154318198Smarius sc->ext_csd[EXT_CSD_PART_CONFIG] = value; 1155322120Smarius if (sc->part_curr == EXT_CSD_PART_CONFIG_ACC_RPMB) 1156322120Smarius MMCBUS_RETUNE_UNPAUSE(sc->mmcbus, sc->dev); 1157318198Smarius sc->part_curr = part; 1158318198Smarius return (MMC_ERR_NONE); 1159318198Smarius} 1160318198Smarius 1161239607Simpstatic const char * 1162239607Simpmmcsd_errmsg(int e) 1163239607Simp{ 1164318198Smarius 1165239607Simp if (e < 0 || e > MMC_ERR_MAX) 1166239607Simp return "Bad error code"; 1167322120Smarius return (errmsg[e]); 1168239607Simp} 1169239607Simp 1170184033Smavstatic daddr_t 1171318198Smariusmmcsd_rw(struct mmcsd_part *part, struct bio *bp) 1172184033Smav{ 1173184033Smav daddr_t block, end; 1174184033Smav struct mmc_command cmd; 1175184033Smav struct mmc_command stop; 1176184033Smav struct mmc_request req; 1177184033Smav struct mmc_data data; 1178318198Smarius struct mmcsd_softc *sc; 1179322120Smarius device_t dev, mmcbus; 1180322120Smarius u_int numblocks, sz; 1181318198Smarius char *vaddr; 1182184033Smav 1183318198Smarius sc = part->sc; 1184318198Smarius dev = sc->dev; 1185322120Smarius mmcbus = sc->mmcbus; 1186318198Smarius 1187184033Smav block = bp->bio_pblkno; 1188318198Smarius sz = part->disk->d_sectorsize; 1189184033Smav end = bp->bio_pblkno + (bp->bio_bcount / sz); 1190184033Smav while (block < end) { 1191318198Smarius vaddr = bp->bio_data + (block - bp->bio_pblkno) * sz; 1192322120Smarius numblocks = min(end - block, sc->max_data); 1193184033Smav memset(&req, 0, sizeof(req)); 1194318198Smarius memset(&cmd, 0, sizeof(cmd)); 1195184033Smav memset(&stop, 0, sizeof(stop)); 1196254432Sian memset(&data, 0, sizeof(data)); 1197248689Sian cmd.mrq = &req; 1198184033Smav req.cmd = &cmd; 1199184033Smav cmd.data = &data; 1200184033Smav if (bp->bio_cmd == BIO_READ) { 1201184033Smav if (numblocks > 1) 1202184033Smav cmd.opcode = MMC_READ_MULTIPLE_BLOCK; 1203184033Smav else 1204184033Smav cmd.opcode = MMC_READ_SINGLE_BLOCK; 1205184033Smav } else { 1206338638Smarius sc->flags |= MMCSD_DIRTY; 1207184033Smav if (numblocks > 1) 1208184033Smav cmd.opcode = MMC_WRITE_MULTIPLE_BLOCK; 1209184033Smav else 1210184033Smav cmd.opcode = MMC_WRITE_BLOCK; 1211184033Smav } 1212184033Smav cmd.arg = block; 1213322120Smarius if (sc->high_cap == 0) 1214184033Smav cmd.arg <<= 9; 1215184033Smav cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; 1216184033Smav data.data = vaddr; 1217184033Smav data.mrq = &req; 1218184033Smav if (bp->bio_cmd == BIO_READ) 1219184033Smav data.flags = MMC_DATA_READ; 1220184033Smav else 1221184033Smav data.flags = MMC_DATA_WRITE; 1222184033Smav data.len = numblocks * sz; 1223184033Smav if (numblocks > 1) { 1224184033Smav data.flags |= MMC_DATA_MULTI; 1225184033Smav stop.opcode = MMC_STOP_TRANSMISSION; 1226184033Smav stop.arg = 0; 1227184033Smav stop.flags = MMC_RSP_R1B | MMC_CMD_AC; 1228248689Sian stop.mrq = &req; 1229184033Smav req.stop = &stop; 1230184033Smav } 1231322120Smarius MMCBUS_WAIT_FOR_REQUEST(mmcbus, dev, &req); 1232239607Simp if (req.cmd->error != MMC_ERR_NONE) { 1233318198Smarius if (ppsratecheck(&sc->log_time, &sc->log_count, 1234318198Smarius LOG_PPS)) 1235278687Sian device_printf(dev, "Error indicated: %d %s\n", 1236318198Smarius req.cmd->error, 1237318198Smarius mmcsd_errmsg(req.cmd->error)); 1238184033Smav break; 1239239607Simp } 1240184033Smav block += numblocks; 1241184033Smav } 1242184033Smav return (block); 1243184033Smav} 1244184033Smav 1245184033Smavstatic daddr_t 1246318198Smariusmmcsd_delete(struct mmcsd_part *part, struct bio *bp) 1247184033Smav{ 1248184033Smav daddr_t block, end, start, stop; 1249184033Smav struct mmc_command cmd; 1250184033Smav struct mmc_request req; 1251318198Smarius struct mmcsd_softc *sc; 1252322120Smarius device_t dev, mmcbus; 1253322120Smarius u_int erase_sector, sz; 1254322389Smarius int err; 1255322389Smarius bool use_trim; 1256184033Smav 1257318198Smarius sc = part->sc; 1258318198Smarius dev = sc->dev; 1259322120Smarius mmcbus = sc->mmcbus; 1260318198Smarius 1261184033Smav block = bp->bio_pblkno; 1262318198Smarius sz = part->disk->d_sectorsize; 1263184033Smav end = bp->bio_pblkno + (bp->bio_bcount / sz); 1264322389Smarius use_trim = sc->flags & MMCSD_USE_TRIM; 1265322389Smarius if (use_trim == true) { 1266322389Smarius start = block; 1267322389Smarius stop = end; 1268322389Smarius } else { 1269322389Smarius /* Coalesce with the remainder of the previous request. */ 1270322389Smarius if (block > part->eblock && block <= part->eend) 1271322389Smarius block = part->eblock; 1272322389Smarius if (end >= part->eblock && end < part->eend) 1273322389Smarius end = part->eend; 1274322389Smarius /* Safely round to the erase sector boundaries. */ 1275322389Smarius erase_sector = sc->erase_sector; 1276322389Smarius start = block + erase_sector - 1; /* Round up. */ 1277322389Smarius start -= start % erase_sector; 1278322389Smarius stop = end; /* Round down. */ 1279322389Smarius stop -= end % erase_sector; 1280322389Smarius /* 1281322389Smarius * We can't erase an area smaller than an erase sector, so 1282322389Smarius * store it for later. 1283322389Smarius */ 1284322389Smarius if (start >= stop) { 1285322389Smarius part->eblock = block; 1286322389Smarius part->eend = end; 1287322389Smarius return (end); 1288322389Smarius } 1289184034Smav } 1290184033Smav 1291322389Smarius if ((sc->flags & MMCSD_INAND_CMD38) != 0) { 1292322389Smarius err = mmc_switch(mmcbus, dev, sc->rca, EXT_CSD_CMD_SET_NORMAL, 1293322389Smarius EXT_CSD_INAND_CMD38, use_trim == true ? 1294322389Smarius EXT_CSD_INAND_CMD38_TRIM : EXT_CSD_INAND_CMD38_ERASE, 1295322389Smarius sc->cmd6_time, true); 1296322389Smarius if (err != MMC_ERR_NONE) { 1297322389Smarius device_printf(dev, 1298322389Smarius "Setting iNAND erase command failed %s\n", 1299322389Smarius mmcsd_errmsg(err)); 1300322389Smarius return (block); 1301322389Smarius } 1302322389Smarius } 1303322389Smarius 1304322120Smarius /* 1305322120Smarius * Pause re-tuning so it won't interfere with the order of erase 1306322120Smarius * commands. Note that these latter don't use the data lines, so 1307322120Smarius * re-tuning shouldn't actually become necessary during erase. 1308322120Smarius */ 1309322120Smarius MMCBUS_RETUNE_PAUSE(mmcbus, dev, false); 1310184033Smav /* Set erase start position. */ 1311184033Smav memset(&req, 0, sizeof(req)); 1312184033Smav memset(&cmd, 0, sizeof(cmd)); 1313248689Sian cmd.mrq = &req; 1314184033Smav req.cmd = &cmd; 1315338638Smarius if (sc->mode == mode_sd) 1316184033Smav cmd.opcode = SD_ERASE_WR_BLK_START; 1317184033Smav else 1318184033Smav cmd.opcode = MMC_ERASE_GROUP_START; 1319184033Smav cmd.arg = start; 1320322120Smarius if (sc->high_cap == 0) 1321184033Smav cmd.arg <<= 9; 1322184033Smav cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 1323322120Smarius MMCBUS_WAIT_FOR_REQUEST(mmcbus, dev, &req); 1324184033Smav if (req.cmd->error != MMC_ERR_NONE) { 1325322389Smarius device_printf(dev, "Setting erase start position failed %s\n", 1326322389Smarius mmcsd_errmsg(req.cmd->error)); 1327322120Smarius block = bp->bio_pblkno; 1328322120Smarius goto unpause; 1329184033Smav } 1330184033Smav /* Set erase stop position. */ 1331184033Smav memset(&req, 0, sizeof(req)); 1332184033Smav memset(&cmd, 0, sizeof(cmd)); 1333184033Smav req.cmd = &cmd; 1334338638Smarius if (sc->mode == mode_sd) 1335184033Smav cmd.opcode = SD_ERASE_WR_BLK_END; 1336184033Smav else 1337184033Smav cmd.opcode = MMC_ERASE_GROUP_END; 1338184033Smav cmd.arg = stop; 1339322120Smarius if (sc->high_cap == 0) 1340184033Smav cmd.arg <<= 9; 1341184033Smav cmd.arg--; 1342184033Smav cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 1343322120Smarius MMCBUS_WAIT_FOR_REQUEST(mmcbus, dev, &req); 1344184033Smav if (req.cmd->error != MMC_ERR_NONE) { 1345322389Smarius device_printf(dev, "Setting erase stop position failed %s\n", 1346322389Smarius mmcsd_errmsg(req.cmd->error)); 1347322120Smarius block = bp->bio_pblkno; 1348322120Smarius goto unpause; 1349184033Smav } 1350184033Smav /* Erase range. */ 1351184033Smav memset(&req, 0, sizeof(req)); 1352184033Smav memset(&cmd, 0, sizeof(cmd)); 1353184033Smav req.cmd = &cmd; 1354184033Smav cmd.opcode = MMC_ERASE; 1355322389Smarius cmd.arg = use_trim == true ? MMC_ERASE_TRIM : MMC_ERASE_ERASE; 1356184033Smav cmd.flags = MMC_RSP_R1B | MMC_CMD_AC; 1357322120Smarius MMCBUS_WAIT_FOR_REQUEST(mmcbus, dev, &req); 1358184033Smav if (req.cmd->error != MMC_ERR_NONE) { 1359322389Smarius device_printf(dev, "Issuing erase command failed %s\n", 1360322389Smarius mmcsd_errmsg(req.cmd->error)); 1361322120Smarius block = bp->bio_pblkno; 1362322120Smarius goto unpause; 1363184033Smav } 1364322389Smarius if (use_trim == false) { 1365322389Smarius /* Store one of the remaining parts for the next call. */ 1366322389Smarius if (bp->bio_pblkno >= part->eblock || block == start) { 1367322389Smarius part->eblock = stop; /* Predict next forward. */ 1368322389Smarius part->eend = end; 1369322389Smarius } else { 1370322389Smarius part->eblock = block; /* Predict next backward. */ 1371322389Smarius part->eend = start; 1372322389Smarius } 1373184034Smav } 1374322120Smarius block = end; 1375322120Smariusunpause: 1376322120Smarius MMCBUS_RETUNE_UNPAUSE(mmcbus, dev); 1377322120Smarius return (block); 1378184033Smav} 1379184033Smav 1380188725Smavstatic int 1381318198Smariusmmcsd_dump(void *arg, void *virtual, vm_offset_t physical, off_t offset, 1382318198Smarius size_t length) 1383188725Smav{ 1384188725Smav struct bio bp; 1385188725Smav daddr_t block, end; 1386318198Smarius struct disk *disk; 1387318198Smarius struct mmcsd_softc *sc; 1388318198Smarius struct mmcsd_part *part; 1389322120Smarius device_t dev, mmcbus; 1390318198Smarius int err; 1391188725Smav 1392338638Smarius disk = arg; 1393338638Smarius part = disk->d_drv1; 1394338638Smarius sc = part->sc; 1395338638Smarius 1396188725Smav /* length zero is special and really means flush buffers to media */ 1397338638Smarius if (length == 0) { 1398338638Smarius err = mmcsd_flush_cache(sc); 1399338638Smarius if (err != MMC_ERR_NONE) 1400338638Smarius return (EIO); 1401188725Smav return (0); 1402338638Smarius } 1403188725Smav 1404318198Smarius dev = sc->dev; 1405322120Smarius mmcbus = sc->mmcbus; 1406318198Smarius 1407188725Smav bzero(&bp, sizeof(struct bio)); 1408188725Smav bp.bio_disk = disk; 1409188725Smav bp.bio_pblkno = offset / disk->d_sectorsize; 1410188725Smav bp.bio_bcount = length; 1411188725Smav bp.bio_data = virtual; 1412188725Smav bp.bio_cmd = BIO_WRITE; 1413318198Smarius end = bp.bio_pblkno + bp.bio_bcount / disk->d_sectorsize; 1414322120Smarius MMCBUS_ACQUIRE_BUS(mmcbus, dev); 1415322120Smarius err = mmcsd_switch_part(mmcbus, dev, sc->rca, part->type); 1416318198Smarius if (err != MMC_ERR_NONE) { 1417318198Smarius if (ppsratecheck(&sc->log_time, &sc->log_count, LOG_PPS)) 1418318198Smarius device_printf(dev, "Partition switch error\n"); 1419322120Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 1420318198Smarius return (EIO); 1421318198Smarius } 1422318198Smarius block = mmcsd_rw(part, &bp); 1423322120Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 1424188725Smav return ((end < block) ? EIO : 0); 1425188725Smav} 1426188725Smav 1427163516Simpstatic void 1428163516Simpmmcsd_task(void *arg) 1429163516Simp{ 1430318198Smarius daddr_t block, end; 1431318198Smarius struct mmcsd_part *part; 1432318198Smarius struct mmcsd_softc *sc; 1433163516Simp struct bio *bp; 1434322120Smarius device_t dev, mmcbus; 1435318198Smarius int err, sz; 1436163516Simp 1437318198Smarius part = arg; 1438318198Smarius sc = part->sc; 1439318198Smarius dev = sc->dev; 1440322120Smarius mmcbus = sc->mmcbus; 1441318198Smarius 1442185201Smav while (1) { 1443322120Smarius MMCSD_DISK_LOCK(part); 1444163516Simp do { 1445318198Smarius if (part->running == 0) 1446185201Smav goto out; 1447318198Smarius bp = bioq_takefirst(&part->bio_queue); 1448163516Simp if (bp == NULL) 1449322120Smarius msleep(part, &part->disk_mtx, PRIBIO, 1450322120Smarius "mmcsd disk jobqueue", 0); 1451185201Smav } while (bp == NULL); 1452322120Smarius MMCSD_DISK_UNLOCK(part); 1453338638Smarius if (__predict_false(bp->bio_cmd == BIO_FLUSH)) { 1454338638Smarius if (mmcsd_flush_cache(sc) != MMC_ERR_NONE) { 1455338638Smarius bp->bio_error = EIO; 1456338638Smarius bp->bio_flags |= BIO_ERROR; 1457338638Smarius } 1458338638Smarius biodone(bp); 1459338638Smarius continue; 1460338638Smarius } 1461318198Smarius if (bp->bio_cmd != BIO_READ && part->ro) { 1462183448Simp bp->bio_error = EROFS; 1463183448Simp bp->bio_resid = bp->bio_bcount; 1464183448Simp bp->bio_flags |= BIO_ERROR; 1465183448Simp biodone(bp); 1466183448Simp continue; 1467183448Simp } 1468322120Smarius MMCBUS_ACQUIRE_BUS(mmcbus, dev); 1469318198Smarius sz = part->disk->d_sectorsize; 1470184033Smav block = bp->bio_pblkno; 1471163516Simp end = bp->bio_pblkno + (bp->bio_bcount / sz); 1472322120Smarius err = mmcsd_switch_part(mmcbus, dev, sc->rca, part->type); 1473318198Smarius if (err != MMC_ERR_NONE) { 1474318198Smarius if (ppsratecheck(&sc->log_time, &sc->log_count, 1475318198Smarius LOG_PPS)) 1476318198Smarius device_printf(dev, "Partition switch error\n"); 1477318198Smarius goto release; 1478318198Smarius } 1479184033Smav if (bp->bio_cmd == BIO_READ || bp->bio_cmd == BIO_WRITE) { 1480184034Smav /* Access to the remaining erase block obsoletes it. */ 1481318198Smarius if (block < part->eend && end > part->eblock) 1482318198Smarius part->eblock = part->eend = 0; 1483318198Smarius block = mmcsd_rw(part, bp); 1484184033Smav } else if (bp->bio_cmd == BIO_DELETE) { 1485318198Smarius block = mmcsd_delete(part, bp); 1486163516Simp } 1487318198Smariusrelease: 1488322120Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 1489183480Simp if (block < end) { 1490183480Simp bp->bio_error = EIO; 1491183480Simp bp->bio_resid = (end - block) * sz; 1492183480Simp bp->bio_flags |= BIO_ERROR; 1493312400Smarius } else { 1494312400Smarius bp->bio_resid = 0; 1495183480Simp } 1496163516Simp biodone(bp); 1497163516Simp } 1498185201Smavout: 1499169567Simp /* tell parent we're done */ 1500318198Smarius part->running = -1; 1501322120Smarius MMCSD_DISK_UNLOCK(part); 1502318198Smarius wakeup(part); 1503169567Simp 1504172836Sjulian kproc_exit(0); 1505163516Simp} 1506163516Simp 1507183774Simpstatic int 1508183774Simpmmcsd_bus_bit_width(device_t dev) 1509183774Simp{ 1510236491Smarius 1511183774Simp if (mmc_get_bus_width(dev) == bus_width_1) 1512183774Simp return (1); 1513183774Simp if (mmc_get_bus_width(dev) == bus_width_4) 1514183774Simp return (4); 1515183774Simp return (8); 1516183774Simp} 1517183774Simp 1518338638Smariusstatic int 1519338638Smariusmmcsd_flush_cache(struct mmcsd_softc *sc) 1520338638Smarius{ 1521338638Smarius device_t dev, mmcbus; 1522338638Smarius int err; 1523338638Smarius 1524338638Smarius if ((sc->flags & MMCSD_FLUSH_CACHE) == 0) 1525338638Smarius return (MMC_ERR_NONE); 1526338638Smarius 1527338638Smarius dev = sc->dev; 1528338638Smarius mmcbus = sc->mmcbus; 1529338638Smarius MMCBUS_ACQUIRE_BUS(mmcbus, dev); 1530338638Smarius if ((sc->flags & MMCSD_DIRTY) == 0) { 1531338638Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 1532338638Smarius return (MMC_ERR_NONE); 1533338638Smarius } 1534338638Smarius err = mmc_switch(mmcbus, dev, sc->rca, EXT_CSD_CMD_SET_NORMAL, 1535338638Smarius EXT_CSD_FLUSH_CACHE, EXT_CSD_FLUSH_CACHE_FLUSH, 60 * 1000, true); 1536338638Smarius if (err == MMC_ERR_NONE) 1537338638Smarius sc->flags &= ~MMCSD_DIRTY; 1538338638Smarius MMCBUS_RELEASE_BUS(mmcbus, dev); 1539338638Smarius return (err); 1540338638Smarius} 1541338638Smarius 1542163516Simpstatic device_method_t mmcsd_methods[] = { 1543163516Simp DEVMETHOD(device_probe, mmcsd_probe), 1544163516Simp DEVMETHOD(device_attach, mmcsd_attach), 1545163516Simp DEVMETHOD(device_detach, mmcsd_detach), 1546338638Smarius DEVMETHOD(device_shutdown, mmcsd_shutdown), 1547185721Smav DEVMETHOD(device_suspend, mmcsd_suspend), 1548185721Smav DEVMETHOD(device_resume, mmcsd_resume), 1549234524Smarius DEVMETHOD_END 1550163516Simp}; 1551163516Simp 1552163516Simpstatic driver_t mmcsd_driver = { 1553163516Simp "mmcsd", 1554163516Simp mmcsd_methods, 1555163516Simp sizeof(struct mmcsd_softc), 1556163516Simp}; 1557163516Simpstatic devclass_t mmcsd_devclass; 1558163516Simp 1559318198Smariusstatic int 1560318198Smariusmmcsd_handler(module_t mod __unused, int what, void *arg __unused) 1561318198Smarius{ 1562318198Smarius 1563318198Smarius switch (what) { 1564318198Smarius case MOD_LOAD: 1565318198Smarius flash_register_slicer(mmcsd_slicer, FLASH_SLICES_TYPE_MMC, 1566318198Smarius TRUE); 1567318198Smarius return (0); 1568318198Smarius case MOD_UNLOAD: 1569318198Smarius flash_register_slicer(NULL, FLASH_SLICES_TYPE_MMC, TRUE); 1570318198Smarius return (0); 1571318198Smarius } 1572318198Smarius return (0); 1573318198Smarius} 1574318198Smarius 1575318198SmariusDRIVER_MODULE(mmcsd, mmc, mmcsd_driver, mmcsd_devclass, mmcsd_handler, NULL); 1576318198SmariusMODULE_DEPEND(mmcsd, g_flashmap, 0, 0, 0); 1577318198SmariusMMC_DEPEND(mmcsd); 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