1114b4164SWarner Losh /*- 2114b4164SWarner Losh * Copyright (c) 2006 Bernd Walter. All rights reserved. 3114b4164SWarner Losh * Copyright (c) 2006 M. Warner Losh. All rights reserved. 4114b4164SWarner Losh * 5114b4164SWarner Losh * Redistribution and use in source and binary forms, with or without 6114b4164SWarner Losh * modification, are permitted provided that the following conditions 7114b4164SWarner Losh * are met: 8114b4164SWarner Losh * 1. Redistributions of source code must retain the above copyright 9114b4164SWarner Losh * notice, this list of conditions and the following disclaimer. 10114b4164SWarner Losh * 2. Redistributions in binary form must reproduce the above copyright 11114b4164SWarner Losh * notice, this list of conditions and the following disclaimer in the 12114b4164SWarner Losh * documentation and/or other materials provided with the distribution. 13114b4164SWarner Losh * 14114b4164SWarner Losh * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15114b4164SWarner Losh * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16114b4164SWarner Losh * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17114b4164SWarner Losh * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18114b4164SWarner Losh * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19114b4164SWarner Losh * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20114b4164SWarner Losh * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21114b4164SWarner Losh * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22114b4164SWarner Losh * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23114b4164SWarner Losh * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2414eced72SWarner Losh * 2514eced72SWarner Losh * Portions of this software may have been developed with reference to 2614eced72SWarner Losh * the SD Simplified Specification. The following disclaimer may apply: 2714eced72SWarner Losh * 2814eced72SWarner Losh * The following conditions apply to the release of the simplified 2914eced72SWarner Losh * specification ("Simplified Specification") by the SD Card Association and 3014eced72SWarner Losh * the SD Group. The Simplified Specification is a subset of the complete SD 3114eced72SWarner Losh * Specification which is owned by the SD Card Association and the SD 3214eced72SWarner Losh * Group. This Simplified Specification is provided on a non-confidential 3314eced72SWarner Losh * basis subject to the disclaimers below. Any implementation of the 3414eced72SWarner Losh * Simplified Specification may require a license from the SD Card 3514eced72SWarner Losh * Association, SD Group, SD-3C LLC or other third parties. 3614eced72SWarner Losh * 3714eced72SWarner Losh * Disclaimers: 3814eced72SWarner Losh * 3914eced72SWarner Losh * The information contained in the Simplified Specification is presented only 4014eced72SWarner Losh * as a standard specification for SD Cards and SD Host/Ancillary products and 4114eced72SWarner Losh * is provided "AS-IS" without any representations or warranties of any 4214eced72SWarner Losh * kind. No responsibility is assumed by the SD Group, SD-3C LLC or the SD 4314eced72SWarner Losh * Card Association for any damages, any infringements of patents or other 4414eced72SWarner Losh * right of the SD Group, SD-3C LLC, the SD Card Association or any third 4514eced72SWarner Losh * parties, which may result from its use. No license is granted by 4614eced72SWarner Losh * implication, estoppel or otherwise under any patent or other rights of the 4714eced72SWarner Losh * SD Group, SD-3C LLC, the SD Card Association or any third party. Nothing 4814eced72SWarner Losh * herein shall be construed as an obligation by the SD Group, the SD-3C LLC 4914eced72SWarner Losh * or the SD Card Association to disclose or distribute any technical 5014eced72SWarner Losh * information, know-how or other confidential information to any third party. 51114b4164SWarner Losh */ 52114b4164SWarner Losh 53114b4164SWarner Losh #include <sys/cdefs.h> 54114b4164SWarner Losh __FBSDID("$FreeBSD$"); 55114b4164SWarner Losh 56114b4164SWarner Losh #include <sys/param.h> 57114b4164SWarner Losh #include <sys/systm.h> 58114b4164SWarner Losh #include <sys/bio.h> 59114b4164SWarner Losh #include <sys/bus.h> 60114b4164SWarner Losh #include <sys/conf.h> 61114b4164SWarner Losh #include <sys/kernel.h> 62114b4164SWarner Losh #include <sys/kthread.h> 63114b4164SWarner Losh #include <sys/lock.h> 64114b4164SWarner Losh #include <sys/malloc.h> 65114b4164SWarner Losh #include <sys/module.h> 66114b4164SWarner Losh #include <sys/mutex.h> 67114b4164SWarner Losh #include <geom/geom_disk.h> 68114b4164SWarner Losh 697aa65846SMarius Strobl #include <dev/mmc/mmcbrvar.h> 70114b4164SWarner Losh #include <dev/mmc/mmcreg.h> 717aa65846SMarius Strobl #include <dev/mmc/mmcvar.h> 72114b4164SWarner Losh 73114b4164SWarner Losh #include "mmcbus_if.h" 74114b4164SWarner Losh 757aa65846SMarius Strobl #if __FreeBSD_version < 800002 767aa65846SMarius Strobl #define kproc_create kthread_create 777aa65846SMarius Strobl #define kproc_exit kthread_exit 787aa65846SMarius Strobl #endif 797aa65846SMarius Strobl 80114b4164SWarner Losh struct mmcsd_softc { 81114b4164SWarner Losh device_t dev; 82114b4164SWarner Losh struct mtx sc_mtx; 83114b4164SWarner Losh struct disk *disk; 84114b4164SWarner Losh struct proc *p; 85114b4164SWarner Losh struct bio_queue_head bio_queue; 86a7cf6274SAlexander Motin daddr_t eblock, eend; /* Range remaining after the last erase. */ 870e1466acSWarner Losh int running; 88eb67f31aSAlexander Motin int suspend; 89114b4164SWarner Losh }; 90114b4164SWarner Losh 91114b4164SWarner Losh /* bus entry points */ 92114b4164SWarner Losh static int mmcsd_probe(device_t dev); 93114b4164SWarner Losh static int mmcsd_attach(device_t dev); 94114b4164SWarner Losh static int mmcsd_detach(device_t dev); 95114b4164SWarner Losh 96114b4164SWarner Losh /* disk routines */ 97114b4164SWarner Losh static int mmcsd_open(struct disk *dp); 98114b4164SWarner Losh static int mmcsd_close(struct disk *dp); 99114b4164SWarner Losh static void mmcsd_strategy(struct bio *bp); 100a1fda318SAlexander Motin static int mmcsd_dump(void *arg, void *virtual, vm_offset_t physical, 101a1fda318SAlexander Motin off_t offset, size_t length); 102114b4164SWarner Losh static void mmcsd_task(void *arg); 103114b4164SWarner Losh 104a0075e58SWarner Losh static int mmcsd_bus_bit_width(device_t dev); 105a0075e58SWarner Losh 106114b4164SWarner Losh #define MMCSD_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx) 107114b4164SWarner Losh #define MMCSD_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx) 108114b4164SWarner Losh #define MMCSD_LOCK_INIT(_sc) \ 109114b4164SWarner Losh mtx_init(&_sc->sc_mtx, device_get_nameunit(_sc->dev), \ 110114b4164SWarner Losh "mmcsd", MTX_DEF) 111114b4164SWarner Losh #define MMCSD_LOCK_DESTROY(_sc) mtx_destroy(&_sc->sc_mtx); 112114b4164SWarner Losh #define MMCSD_ASSERT_LOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_OWNED); 113114b4164SWarner Losh #define MMCSD_ASSERT_UNLOCKED(_sc) mtx_assert(&_sc->sc_mtx, MA_NOTOWNED); 114114b4164SWarner Losh 115114b4164SWarner Losh static int 116114b4164SWarner Losh mmcsd_probe(device_t dev) 117114b4164SWarner Losh { 118114b4164SWarner Losh 119c18f1e26SAlexander Motin device_quiet(dev); 1200c0903b1SWarner Losh device_set_desc(dev, "MMC/SD Memory Card"); 121114b4164SWarner Losh return (0); 122114b4164SWarner Losh } 123114b4164SWarner Losh 124114b4164SWarner Losh static int 125114b4164SWarner Losh mmcsd_attach(device_t dev) 126114b4164SWarner Losh { 127114b4164SWarner Losh struct mmcsd_softc *sc; 128a0075e58SWarner Losh struct disk *d; 129a0075e58SWarner Losh intmax_t mb; 1307aa65846SMarius Strobl uint32_t speed; 1317aa65846SMarius Strobl uint32_t maxblocks; 132a0075e58SWarner Losh char unit; 133114b4164SWarner Losh 134114b4164SWarner Losh sc = device_get_softc(dev); 135114b4164SWarner Losh sc->dev = dev; 136114b4164SWarner Losh MMCSD_LOCK_INIT(sc); 137114b4164SWarner Losh 138a0075e58SWarner Losh d = sc->disk = disk_alloc(); 139a0075e58SWarner Losh d->d_open = mmcsd_open; 140a0075e58SWarner Losh d->d_close = mmcsd_close; 141a0075e58SWarner Losh d->d_strategy = mmcsd_strategy; 142a1fda318SAlexander Motin d->d_dump = mmcsd_dump; 143a0075e58SWarner Losh d->d_name = "mmcsd"; 144a0075e58SWarner Losh d->d_drv1 = sc; 1453906d42dSAlexander Motin d->d_maxsize = 4*1024*1024; /* Maximum defined SD card AU size. */ 146a0075e58SWarner Losh d->d_sectorsize = mmc_get_sector_size(dev); 1471f89a4dcSAlexander Motin d->d_mediasize = (off_t)mmc_get_media_size(dev) * d->d_sectorsize; 1482262a519SAlexander Motin d->d_stripeoffset = 0; 1492262a519SAlexander Motin d->d_stripesize = mmc_get_erase_sector(dev) * d->d_sectorsize; 150a0075e58SWarner Losh d->d_unit = device_get_unit(dev); 1513906d42dSAlexander Motin d->d_flags = DISKFLAG_CANDELETE; 152a0075e58SWarner Losh /* 153a0075e58SWarner Losh * Display in most natural units. There's no cards < 1MB. 154a0075e58SWarner Losh * The SD standard goes to 2GiB, but the data format supports 155a0075e58SWarner Losh * up to 4GiB and some card makers push it up to this limit. 156a0075e58SWarner Losh * The SDHC standard only goes to 32GiB (the data format in 157a0075e58SWarner Losh * SDHC is good to 2TiB however, which isn't too ugly at 158a0075e58SWarner Losh * 2048GiBm, so we note it in passing here and don't add the 159a0075e58SWarner Losh * code to print TiB). 160a0075e58SWarner Losh */ 161a0075e58SWarner Losh mb = d->d_mediasize >> 20; /* 1MiB == 1 << 20 */ 162a0075e58SWarner Losh unit = 'M'; 16358bb6260SAlexander Motin if (mb >= 10240) { /* 1GiB = 1024 MiB */ 164a0075e58SWarner Losh unit = 'G'; 165a0075e58SWarner Losh mb /= 1024; 166a0075e58SWarner Losh } 1677aa65846SMarius Strobl /* 1687aa65846SMarius Strobl * Report the clock speed of the underlying hardware, which might be 1697aa65846SMarius Strobl * different than what the card reports due to hardware limitations. 1707aa65846SMarius Strobl * Report how many blocks the hardware transfers at once, but clip the 1717aa65846SMarius Strobl * number to MAXPHYS since the system won't initiate larger transfers. 1727aa65846SMarius Strobl */ 1737aa65846SMarius Strobl speed = mmcbr_get_clock(device_get_parent(dev)); 1747aa65846SMarius Strobl maxblocks = mmc_get_max_data(dev); 1757aa65846SMarius Strobl if (maxblocks > MAXPHYS) 1767aa65846SMarius Strobl maxblocks = MAXPHYS; 1777aa65846SMarius Strobl device_printf(dev, "%ju%cB <%s>%s at %s %d.%01dMHz/%dbit/%d-block\n", 1787aa65846SMarius Strobl mb, unit, mmc_get_card_id_string(dev), 1790c0903b1SWarner Losh mmc_get_read_only(dev) ? " (read-only)" : "", 180a0075e58SWarner Losh device_get_nameunit(device_get_parent(dev)), 1817aa65846SMarius Strobl speed / 1000000, (speed / 100000) % 10, 1827aa65846SMarius Strobl mmcsd_bus_bit_width(dev), maxblocks); 183a0075e58SWarner Losh disk_create(d, DISK_VERSION); 184114b4164SWarner Losh bioq_init(&sc->bio_queue); 1850e1466acSWarner Losh 1860e1466acSWarner Losh sc->running = 1; 187eb67f31aSAlexander Motin sc->suspend = 0; 188a7cf6274SAlexander Motin sc->eblock = sc->eend = 0; 1893745c395SJulian Elischer kproc_create(&mmcsd_task, sc, &sc->p, 0, 0, "task: mmc/sd card"); 190114b4164SWarner Losh 191114b4164SWarner Losh return (0); 192114b4164SWarner Losh } 193114b4164SWarner Losh 194114b4164SWarner Losh static int 195114b4164SWarner Losh mmcsd_detach(device_t dev) 196114b4164SWarner Losh { 1970e1466acSWarner Losh struct mmcsd_softc *sc = device_get_softc(dev); 1980e1466acSWarner Losh 1990e1466acSWarner Losh MMCSD_LOCK(sc); 200eb67f31aSAlexander Motin sc->suspend = 0; 201eb67f31aSAlexander Motin if (sc->running > 0) { 202eb67f31aSAlexander Motin /* kill thread */ 2030e1466acSWarner Losh sc->running = 0; 2040e1466acSWarner Losh wakeup(sc); 205eb67f31aSAlexander Motin /* wait for thread to finish. */ 2060e1466acSWarner Losh while (sc->running != -1) 207eb67f31aSAlexander Motin msleep(sc, &sc->sc_mtx, 0, "detach", 0); 208eb67f31aSAlexander Motin } 2090e1466acSWarner Losh MMCSD_UNLOCK(sc); 2100e1466acSWarner Losh 211249b0e85SAlexander Motin /* Flush the request queue. */ 212249b0e85SAlexander Motin bioq_flush(&sc->bio_queue, NULL, ENXIO); 2130e1466acSWarner Losh /* kill disk */ 2140e1466acSWarner Losh disk_destroy(sc->disk); 2150e1466acSWarner Losh 2160e1466acSWarner Losh MMCSD_LOCK_DESTROY(sc); 2170e1466acSWarner Losh 218128d0ff2SWarner Losh return (0); 219114b4164SWarner Losh } 220114b4164SWarner Losh 221114b4164SWarner Losh static int 222eb67f31aSAlexander Motin mmcsd_suspend(device_t dev) 223eb67f31aSAlexander Motin { 224eb67f31aSAlexander Motin struct mmcsd_softc *sc = device_get_softc(dev); 225eb67f31aSAlexander Motin 226eb67f31aSAlexander Motin MMCSD_LOCK(sc); 227eb67f31aSAlexander Motin sc->suspend = 1; 228eb67f31aSAlexander Motin if (sc->running > 0) { 229eb67f31aSAlexander Motin /* kill thread */ 230eb67f31aSAlexander Motin sc->running = 0; 231eb67f31aSAlexander Motin wakeup(sc); 232eb67f31aSAlexander Motin /* wait for thread to finish. */ 233eb67f31aSAlexander Motin while (sc->running != -1) 234eb67f31aSAlexander Motin msleep(sc, &sc->sc_mtx, 0, "detach", 0); 235eb67f31aSAlexander Motin } 236eb67f31aSAlexander Motin MMCSD_UNLOCK(sc); 237eb67f31aSAlexander Motin return (0); 238eb67f31aSAlexander Motin } 239eb67f31aSAlexander Motin 240eb67f31aSAlexander Motin static int 241eb67f31aSAlexander Motin mmcsd_resume(device_t dev) 242eb67f31aSAlexander Motin { 243eb67f31aSAlexander Motin struct mmcsd_softc *sc = device_get_softc(dev); 244eb67f31aSAlexander Motin 245eb67f31aSAlexander Motin MMCSD_LOCK(sc); 246eb67f31aSAlexander Motin sc->suspend = 0; 247eb67f31aSAlexander Motin if (sc->running <= 0) { 248eb67f31aSAlexander Motin sc->running = 1; 249eb67f31aSAlexander Motin MMCSD_UNLOCK(sc); 250eb67f31aSAlexander Motin kproc_create(&mmcsd_task, sc, &sc->p, 0, 0, "task: mmc/sd card"); 251eb67f31aSAlexander Motin } else 252eb67f31aSAlexander Motin MMCSD_UNLOCK(sc); 253eb67f31aSAlexander Motin return (0); 254eb67f31aSAlexander Motin } 255eb67f31aSAlexander Motin 256eb67f31aSAlexander Motin static int 257114b4164SWarner Losh mmcsd_open(struct disk *dp) 258114b4164SWarner Losh { 259128d0ff2SWarner Losh return (0); 260114b4164SWarner Losh } 261114b4164SWarner Losh 262114b4164SWarner Losh static int 263114b4164SWarner Losh mmcsd_close(struct disk *dp) 264114b4164SWarner Losh { 265128d0ff2SWarner Losh return (0); 266114b4164SWarner Losh } 267114b4164SWarner Losh 268114b4164SWarner Losh static void 269114b4164SWarner Losh mmcsd_strategy(struct bio *bp) 270114b4164SWarner Losh { 271114b4164SWarner Losh struct mmcsd_softc *sc; 272114b4164SWarner Losh 273114b4164SWarner Losh sc = (struct mmcsd_softc *)bp->bio_disk->d_drv1; 274114b4164SWarner Losh MMCSD_LOCK(sc); 275eb67f31aSAlexander Motin if (sc->running > 0 || sc->suspend > 0) { 276114b4164SWarner Losh bioq_disksort(&sc->bio_queue, bp); 277114b4164SWarner Losh MMCSD_UNLOCK(sc); 278eb67f31aSAlexander Motin wakeup(sc); 279249b0e85SAlexander Motin } else { 280249b0e85SAlexander Motin MMCSD_UNLOCK(sc); 281249b0e85SAlexander Motin biofinish(bp, NULL, ENXIO); 282249b0e85SAlexander Motin } 283114b4164SWarner Losh } 284114b4164SWarner Losh 2853906d42dSAlexander Motin static daddr_t 2863906d42dSAlexander Motin mmcsd_rw(struct mmcsd_softc *sc, struct bio *bp) 287114b4164SWarner Losh { 288114b4164SWarner Losh daddr_t block, end; 289114b4164SWarner Losh struct mmc_command cmd; 290114b4164SWarner Losh struct mmc_command stop; 291114b4164SWarner Losh struct mmc_request req; 292114b4164SWarner Losh struct mmc_data data; 2933906d42dSAlexander Motin device_t dev = sc->dev; 2943906d42dSAlexander Motin int sz = sc->disk->d_sectorsize; 295114b4164SWarner Losh 2963906d42dSAlexander Motin block = bp->bio_pblkno; 297114b4164SWarner Losh end = bp->bio_pblkno + (bp->bio_bcount / sz); 2983906d42dSAlexander Motin while (block < end) { 2993906d42dSAlexander Motin char *vaddr = bp->bio_data + 3003906d42dSAlexander Motin (block - bp->bio_pblkno) * sz; 3013a4a2557SAlexander Motin int numblocks = min(end - block, mmc_get_max_data(dev)); 302114b4164SWarner Losh memset(&req, 0, sizeof(req)); 303114b4164SWarner Losh memset(&cmd, 0, sizeof(cmd)); 304114b4164SWarner Losh memset(&stop, 0, sizeof(stop)); 305114b4164SWarner Losh req.cmd = &cmd; 306114b4164SWarner Losh cmd.data = &data; 307114b4164SWarner Losh if (bp->bio_cmd == BIO_READ) { 3080c0903b1SWarner Losh if (numblocks > 1) 309114b4164SWarner Losh cmd.opcode = MMC_READ_MULTIPLE_BLOCK; 310114b4164SWarner Losh else 311114b4164SWarner Losh cmd.opcode = MMC_READ_SINGLE_BLOCK; 3120c0903b1SWarner Losh } else { 3130c0903b1SWarner Losh if (numblocks > 1) 3140c0903b1SWarner Losh cmd.opcode = MMC_WRITE_MULTIPLE_BLOCK; 3150c0903b1SWarner Losh else 316114b4164SWarner Losh cmd.opcode = MMC_WRITE_BLOCK; 3170c0903b1SWarner Losh } 318c18f1e26SAlexander Motin cmd.arg = block; 319c18f1e26SAlexander Motin if (!mmc_get_high_cap(dev)) 320c18f1e26SAlexander Motin cmd.arg <<= 9; 321114b4164SWarner Losh cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC; 322114b4164SWarner Losh data.data = vaddr; 323114b4164SWarner Losh data.mrq = &req; 3240c0903b1SWarner Losh if (bp->bio_cmd == BIO_READ) 325114b4164SWarner Losh data.flags = MMC_DATA_READ; 3260c0903b1SWarner Losh else 327114b4164SWarner Losh data.flags = MMC_DATA_WRITE; 3280c0903b1SWarner Losh data.len = numblocks * sz; 3290c0903b1SWarner Losh if (numblocks > 1) { 3300c0903b1SWarner Losh data.flags |= MMC_DATA_MULTI; 331114b4164SWarner Losh stop.opcode = MMC_STOP_TRANSMISSION; 332114b4164SWarner Losh stop.arg = 0; 333114b4164SWarner Losh stop.flags = MMC_RSP_R1B | MMC_CMD_AC; 3340c0903b1SWarner Losh req.stop = &stop; 3350c0903b1SWarner Losh } 3360c0903b1SWarner Losh // printf("Len %d %lld-%lld flags %#x sz %d\n", 3370c0903b1SWarner Losh // (int)data.len, (long long)block, (long long)end, data.flags, sz); 338114b4164SWarner Losh MMCBUS_WAIT_FOR_REQUEST(device_get_parent(dev), dev, 339114b4164SWarner Losh &req); 3400c0903b1SWarner Losh if (req.cmd->error != MMC_ERR_NONE) 3410c0903b1SWarner Losh break; 3420c0903b1SWarner Losh block += numblocks; 343114b4164SWarner Losh } 3443906d42dSAlexander Motin return (block); 3453906d42dSAlexander Motin } 3463906d42dSAlexander Motin 3473906d42dSAlexander Motin static daddr_t 3483906d42dSAlexander Motin mmcsd_delete(struct mmcsd_softc *sc, struct bio *bp) 3493906d42dSAlexander Motin { 3503906d42dSAlexander Motin daddr_t block, end, start, stop; 3513906d42dSAlexander Motin struct mmc_command cmd; 3523906d42dSAlexander Motin struct mmc_request req; 3533906d42dSAlexander Motin device_t dev = sc->dev; 3543906d42dSAlexander Motin int sz = sc->disk->d_sectorsize; 3553906d42dSAlexander Motin int erase_sector; 3563906d42dSAlexander Motin 3573906d42dSAlexander Motin block = bp->bio_pblkno; 3583906d42dSAlexander Motin end = bp->bio_pblkno + (bp->bio_bcount / sz); 359a7cf6274SAlexander Motin /* Coalesce with part remaining from previous request. */ 360a7cf6274SAlexander Motin if (block > sc->eblock && block <= sc->eend) 361a7cf6274SAlexander Motin block = sc->eblock; 362a7cf6274SAlexander Motin if (end >= sc->eblock && end < sc->eend) 363a7cf6274SAlexander Motin end = sc->eend; 3643906d42dSAlexander Motin /* Safe round to the erase sector boundaries. */ 3653906d42dSAlexander Motin erase_sector = mmc_get_erase_sector(dev); 3663906d42dSAlexander Motin start = block + erase_sector - 1; /* Round up. */ 3673906d42dSAlexander Motin start -= start % erase_sector; 3683906d42dSAlexander Motin stop = end; /* Round down. */ 3693906d42dSAlexander Motin stop -= end % erase_sector; 370a7cf6274SAlexander Motin /* We can't erase area smaller then sector, store it for later. */ 371a7cf6274SAlexander Motin if (start >= stop) { 372a7cf6274SAlexander Motin sc->eblock = block; 373a7cf6274SAlexander Motin sc->eend = end; 3743906d42dSAlexander Motin return (end); 375a7cf6274SAlexander Motin } 3763906d42dSAlexander Motin 3773906d42dSAlexander Motin /* Set erase start position. */ 3783906d42dSAlexander Motin memset(&req, 0, sizeof(req)); 3793906d42dSAlexander Motin memset(&cmd, 0, sizeof(cmd)); 3803906d42dSAlexander Motin req.cmd = &cmd; 3813906d42dSAlexander Motin if (mmc_get_card_type(dev) == mode_sd) 3823906d42dSAlexander Motin cmd.opcode = SD_ERASE_WR_BLK_START; 3833906d42dSAlexander Motin else 3843906d42dSAlexander Motin cmd.opcode = MMC_ERASE_GROUP_START; 3853906d42dSAlexander Motin cmd.arg = start; 3863906d42dSAlexander Motin if (!mmc_get_high_cap(dev)) 3873906d42dSAlexander Motin cmd.arg <<= 9; 3883906d42dSAlexander Motin cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 3893906d42dSAlexander Motin MMCBUS_WAIT_FOR_REQUEST(device_get_parent(dev), dev, 3903906d42dSAlexander Motin &req); 3913906d42dSAlexander Motin if (req.cmd->error != MMC_ERR_NONE) { 3923906d42dSAlexander Motin printf("erase err1: %d\n", req.cmd->error); 3933906d42dSAlexander Motin return (block); 3943906d42dSAlexander Motin } 3953906d42dSAlexander Motin /* Set erase stop position. */ 3963906d42dSAlexander Motin memset(&req, 0, sizeof(req)); 3973906d42dSAlexander Motin memset(&cmd, 0, sizeof(cmd)); 3983906d42dSAlexander Motin req.cmd = &cmd; 3993906d42dSAlexander Motin if (mmc_get_card_type(dev) == mode_sd) 4003906d42dSAlexander Motin cmd.opcode = SD_ERASE_WR_BLK_END; 4013906d42dSAlexander Motin else 4023906d42dSAlexander Motin cmd.opcode = MMC_ERASE_GROUP_END; 4033906d42dSAlexander Motin cmd.arg = stop; 4043906d42dSAlexander Motin if (!mmc_get_high_cap(dev)) 4053906d42dSAlexander Motin cmd.arg <<= 9; 4063906d42dSAlexander Motin cmd.arg--; 4073906d42dSAlexander Motin cmd.flags = MMC_RSP_R1 | MMC_CMD_AC; 4083906d42dSAlexander Motin MMCBUS_WAIT_FOR_REQUEST(device_get_parent(dev), dev, 4093906d42dSAlexander Motin &req); 4103906d42dSAlexander Motin if (req.cmd->error != MMC_ERR_NONE) { 4113906d42dSAlexander Motin printf("erase err2: %d\n", req.cmd->error); 4123906d42dSAlexander Motin return (block); 4133906d42dSAlexander Motin } 4143906d42dSAlexander Motin /* Erase range. */ 4153906d42dSAlexander Motin memset(&req, 0, sizeof(req)); 4163906d42dSAlexander Motin memset(&cmd, 0, sizeof(cmd)); 4173906d42dSAlexander Motin req.cmd = &cmd; 4183906d42dSAlexander Motin cmd.opcode = MMC_ERASE; 4193906d42dSAlexander Motin cmd.arg = 0; 4203906d42dSAlexander Motin cmd.flags = MMC_RSP_R1B | MMC_CMD_AC; 4213906d42dSAlexander Motin MMCBUS_WAIT_FOR_REQUEST(device_get_parent(dev), dev, 4223906d42dSAlexander Motin &req); 4233906d42dSAlexander Motin if (req.cmd->error != MMC_ERR_NONE) { 4243906d42dSAlexander Motin printf("erase err3 %d\n", req.cmd->error); 4253906d42dSAlexander Motin return (block); 4263906d42dSAlexander Motin } 427a7cf6274SAlexander Motin /* Store one of remaining parts for the next call. */ 428a7cf6274SAlexander Motin if (bp->bio_pblkno >= sc->eblock || block == start) { 429a7cf6274SAlexander Motin sc->eblock = stop; /* Predict next forward. */ 430a7cf6274SAlexander Motin sc->eend = end; 431a7cf6274SAlexander Motin } else { 432a7cf6274SAlexander Motin sc->eblock = block; /* Predict next backward. */ 433a7cf6274SAlexander Motin sc->eend = start; 434a7cf6274SAlexander Motin } 4353906d42dSAlexander Motin return (end); 4363906d42dSAlexander Motin } 4373906d42dSAlexander Motin 438a1fda318SAlexander Motin static int 439a1fda318SAlexander Motin mmcsd_dump(void *arg, void *virtual, vm_offset_t physical, 440a1fda318SAlexander Motin off_t offset, size_t length) 441a1fda318SAlexander Motin { 442a1fda318SAlexander Motin struct disk *disk = arg; 443a1fda318SAlexander Motin struct mmcsd_softc *sc = (struct mmcsd_softc *)disk->d_drv1; 444a1fda318SAlexander Motin device_t dev = sc->dev; 445a1fda318SAlexander Motin struct bio bp; 446a1fda318SAlexander Motin daddr_t block, end; 447a1fda318SAlexander Motin 448a1fda318SAlexander Motin /* length zero is special and really means flush buffers to media */ 449a1fda318SAlexander Motin if (!length) 450a1fda318SAlexander Motin return (0); 451a1fda318SAlexander Motin 452a1fda318SAlexander Motin bzero(&bp, sizeof(struct bio)); 453a1fda318SAlexander Motin bp.bio_disk = disk; 454a1fda318SAlexander Motin bp.bio_pblkno = offset / disk->d_sectorsize; 455a1fda318SAlexander Motin bp.bio_bcount = length; 456a1fda318SAlexander Motin bp.bio_data = virtual; 457a1fda318SAlexander Motin bp.bio_cmd = BIO_WRITE; 458a1fda318SAlexander Motin end = bp.bio_pblkno + bp.bio_bcount / sc->disk->d_sectorsize; 459a1fda318SAlexander Motin MMCBUS_ACQUIRE_BUS(device_get_parent(dev), dev); 460a1fda318SAlexander Motin block = mmcsd_rw(sc, &bp); 461a1fda318SAlexander Motin MMCBUS_RELEASE_BUS(device_get_parent(dev), dev); 462a1fda318SAlexander Motin return ((end < block) ? EIO : 0); 463a1fda318SAlexander Motin } 464a1fda318SAlexander Motin 4653906d42dSAlexander Motin static void 4663906d42dSAlexander Motin mmcsd_task(void *arg) 4673906d42dSAlexander Motin { 4683906d42dSAlexander Motin struct mmcsd_softc *sc = (struct mmcsd_softc*)arg; 4693906d42dSAlexander Motin struct bio *bp; 4703906d42dSAlexander Motin int sz; 4713906d42dSAlexander Motin daddr_t block, end; 4723906d42dSAlexander Motin device_t dev; 4733906d42dSAlexander Motin 4743906d42dSAlexander Motin dev = sc->dev; 475249b0e85SAlexander Motin while (1) { 4763906d42dSAlexander Motin MMCSD_LOCK(sc); 4773906d42dSAlexander Motin do { 478249b0e85SAlexander Motin if (sc->running == 0) 479249b0e85SAlexander Motin goto out; 480249b0e85SAlexander Motin bp = bioq_takefirst(&sc->bio_queue); 4813906d42dSAlexander Motin if (bp == NULL) 4823906d42dSAlexander Motin msleep(sc, &sc->sc_mtx, PRIBIO, "jobqueue", 0); 483249b0e85SAlexander Motin } while (bp == NULL); 4843906d42dSAlexander Motin MMCSD_UNLOCK(sc); 4853906d42dSAlexander Motin if (bp->bio_cmd != BIO_READ && mmc_get_read_only(dev)) { 4863906d42dSAlexander Motin bp->bio_error = EROFS; 4873906d42dSAlexander Motin bp->bio_resid = bp->bio_bcount; 4883906d42dSAlexander Motin bp->bio_flags |= BIO_ERROR; 4893906d42dSAlexander Motin biodone(bp); 4903906d42dSAlexander Motin continue; 4913906d42dSAlexander Motin } 4923906d42dSAlexander Motin MMCBUS_ACQUIRE_BUS(device_get_parent(dev), dev); 4933906d42dSAlexander Motin sz = sc->disk->d_sectorsize; 4943906d42dSAlexander Motin block = bp->bio_pblkno; 4953906d42dSAlexander Motin end = bp->bio_pblkno + (bp->bio_bcount / sz); 4963906d42dSAlexander Motin if (bp->bio_cmd == BIO_READ || bp->bio_cmd == BIO_WRITE) { 497a7cf6274SAlexander Motin /* Access to the remaining erase block obsoletes it. */ 498a7cf6274SAlexander Motin if (block < sc->eend && end > sc->eblock) 499a7cf6274SAlexander Motin sc->eblock = sc->eend = 0; 5003906d42dSAlexander Motin block = mmcsd_rw(sc, bp); 5013906d42dSAlexander Motin } else if (bp->bio_cmd == BIO_DELETE) { 5023906d42dSAlexander Motin block = mmcsd_delete(sc, bp); 5033906d42dSAlexander Motin } 504114b4164SWarner Losh MMCBUS_RELEASE_BUS(device_get_parent(dev), dev); 5050c0903b1SWarner Losh if (block < end) { 5060c0903b1SWarner Losh bp->bio_error = EIO; 5070c0903b1SWarner Losh bp->bio_resid = (end - block) * sz; 5080c0903b1SWarner Losh bp->bio_flags |= BIO_ERROR; 5090c0903b1SWarner Losh } 510114b4164SWarner Losh biodone(bp); 511114b4164SWarner Losh } 512249b0e85SAlexander Motin out: 5130e1466acSWarner Losh /* tell parent we're done */ 5140e1466acSWarner Losh sc->running = -1; 5150e1466acSWarner Losh MMCSD_UNLOCK(sc); 516eb67f31aSAlexander Motin wakeup(sc); 5170e1466acSWarner Losh 5183745c395SJulian Elischer kproc_exit(0); 519114b4164SWarner Losh } 520114b4164SWarner Losh 521a0075e58SWarner Losh static int 522a0075e58SWarner Losh mmcsd_bus_bit_width(device_t dev) 523a0075e58SWarner Losh { 524a0075e58SWarner Losh if (mmc_get_bus_width(dev) == bus_width_1) 525a0075e58SWarner Losh return (1); 526a0075e58SWarner Losh if (mmc_get_bus_width(dev) == bus_width_4) 527a0075e58SWarner Losh return (4); 528a0075e58SWarner Losh return (8); 529a0075e58SWarner Losh } 530a0075e58SWarner Losh 531114b4164SWarner Losh static device_method_t mmcsd_methods[] = { 532114b4164SWarner Losh DEVMETHOD(device_probe, mmcsd_probe), 533114b4164SWarner Losh DEVMETHOD(device_attach, mmcsd_attach), 534114b4164SWarner Losh DEVMETHOD(device_detach, mmcsd_detach), 535eb67f31aSAlexander Motin DEVMETHOD(device_suspend, mmcsd_suspend), 536eb67f31aSAlexander Motin DEVMETHOD(device_resume, mmcsd_resume), 5377aa65846SMarius Strobl DEVMETHOD_END 538114b4164SWarner Losh }; 539114b4164SWarner Losh 540114b4164SWarner Losh static driver_t mmcsd_driver = { 541114b4164SWarner Losh "mmcsd", 542114b4164SWarner Losh mmcsd_methods, 543114b4164SWarner Losh sizeof(struct mmcsd_softc), 544114b4164SWarner Losh }; 545114b4164SWarner Losh static devclass_t mmcsd_devclass; 546114b4164SWarner Losh 5477aa65846SMarius Strobl DRIVER_MODULE(mmcsd, mmc, mmcsd_driver, mmcsd_devclass, NULL, NULL); 548