sys/dev/ata/ata-all.c

   1 /*-
   2  * Copyright (c) 1998 - 2008 Søren Schmidt <sos@FreeBSD.org>
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer,
  10  *    without modification, immediately at the beginning of the file.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 __FBSDID("$FreeBSD$");
  29
  30 #include <sys/param.h>
  31 #include <sys/systm.h>
  32 #include <sys/ata.h>
  33 #include <sys/kernel.h>
  34 #include <sys/module.h>
  35 #include <sys/endian.h>
  36 #include <sys/ctype.h>
  37 #include <sys/conf.h>
  38 #include <sys/bus.h>
  39 #include <sys/bio.h>
  40 #include <sys/malloc.h>
  41 #include <sys/sysctl.h>
  42 #include <sys/sema.h>
  43 #include <sys/taskqueue.h>
  44 #include <vm/uma.h>
  45 #include <machine/stdarg.h>
  46 #include <machine/resource.h>
  47 #include <machine/bus.h>
  48 #include <sys/rman.h>
  49 #include <dev/ata/ata-all.h>
  50 #include <dev/pci/pcivar.h>
  51 #include <ata_if.h>
  52
  53 #include <cam/cam.h>
  54 #include <cam/cam_ccb.h>
  55 #include <cam/cam_sim.h>
  56 #include <cam/cam_xpt_sim.h>
  57 #include <cam/cam_debug.h>
  58
  59 /* prototypes */
  60 static void ataaction(struct cam_sim *sim, union ccb *ccb);
  61 static void atapoll(struct cam_sim *sim);
  62 static void ata_cam_begin_transaction(device_t dev, union ccb *ccb);
  63 static void ata_cam_end_transaction(device_t dev, struct ata_request *request);
  64 static void ata_cam_request_sense(device_t dev, struct ata_request *request);
  65 static int ata_check_ids(device_t dev, union ccb *ccb);
  66 static void ata_conn_event(void *context, int dummy);
  67 static void ata_init(void);
  68 static void ata_interrupt_locked(void *data);
  69 static int ata_module_event_handler(module_t mod, int what, void *arg);
  70 static void ata_periodic_poll(void *data);
  71 static int ata_str2mode(const char *str);
  72 static void ata_uninit(void);
  73
  74 /* global vars */
  75 MALLOC_DEFINE(M_ATA, "ata_generic", "ATA driver generic layer");
  76 int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data) = NULL;
  77 devclass_t ata_devclass;
  78 uma_zone_t ata_request_zone;
  79 int ata_dma_check_80pin = 1;
  80
  81 /* sysctl vars */
  82 static SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters");
  83 TUNABLE_INT("hw.ata.ata_dma_check_80pin", &ata_dma_check_80pin);
  84 SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma_check_80pin,
  85            CTLFLAG_RW, &ata_dma_check_80pin, 1,
  86            "Check for 80pin cable before setting ATA DMA mode");
  87 FEATURE(ata_cam, "ATA devices are accessed through the cam(4) driver");
  88
  89 /*
  90  * newbus device interface related functions
  91  */
  92 int
  93 ata_probe(device_t dev)
  94 {
  95     return (BUS_PROBE_DEFAULT);
  96 }
  97
  98 int
  99 ata_attach(device_t dev)
 100 {
 101     struct ata_channel *ch = device_get_softc(dev);
 102     int error, rid;
 103     struct cam_devq *devq;
 104     const char *res;
 105     char buf[64];
 106     int i, mode;
 107
 108     /* check that we have a virgin channel to attach */
 109     if (ch->r_irq)
 110         return EEXIST;
 111
 112     /* initialize the softc basics */
 113     ch->dev = dev;
 114     ch->state = ATA_IDLE;
 115     bzero(&ch->state_mtx, sizeof(struct mtx));
 116     mtx_init(&ch->state_mtx, "ATA state lock", NULL, MTX_DEF);
 117     TASK_INIT(&ch->conntask, 0, ata_conn_event, dev);
 118         for (i = 0; i < 16; i++) {
 119                 ch->user[i].revision = 0;
 120                 snprintf(buf, sizeof(buf), "dev%d.sata_rev", i);
 121                 if (resource_int_value(device_get_name(dev),
 122                     device_get_unit(dev), buf, &mode) != 0 &&
 123                     resource_int_value(device_get_name(dev),
 124                     device_get_unit(dev), "sata_rev", &mode) != 0)
 125                         mode = -1;
 126                 if (mode >= 0)
 127                         ch->user[i].revision = mode;
 128                 ch->user[i].mode = 0;
 129                 snprintf(buf, sizeof(buf), "dev%d.mode", i);
 130                 if (resource_string_value(device_get_name(dev),
 131                     device_get_unit(dev), buf, &res) == 0)
 132                         mode = ata_str2mode(res);
 133                 else if (resource_string_value(device_get_name(dev),
 134                     device_get_unit(dev), "mode", &res) == 0)
 135                         mode = ata_str2mode(res);
 136                 else
 137                         mode = -1;
 138                 if (mode >= 0)
 139                         ch->user[i].mode = mode;
 140                 if (ch->flags & ATA_SATA)
 141                         ch->user[i].bytecount = 8192;
 142                 else
 143                         ch->user[i].bytecount = MAXPHYS;
 144                 ch->user[i].caps = 0;
 145                 ch->curr[i] = ch->user[i];
 146                 if (ch->flags & ATA_SATA) {
 147                         if (ch->pm_level > 0)
 148                                 ch->user[i].caps |= CTS_SATA_CAPS_H_PMREQ;
 149                         if (ch->pm_level > 1)
 150                                 ch->user[i].caps |= CTS_SATA_CAPS_D_PMREQ;
 151                 } else {
 152                         if (!(ch->flags & ATA_NO_48BIT_DMA))
 153                                 ch->user[i].caps |= CTS_ATA_CAPS_H_DMA48;
 154                 }
 155         }
 156         callout_init(&ch->poll_callout, 1);
 157
 158     /* allocate DMA resources if DMA HW present*/
 159     if (ch->dma.alloc)
 160         ch->dma.alloc(dev);
 161
 162     /* setup interrupt delivery */
 163     rid = ATA_IRQ_RID;
 164     ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
 165                                        RF_SHAREABLE | RF_ACTIVE);
 166     if (!ch->r_irq) {
 167         device_printf(dev, "unable to allocate interrupt\n");
 168         return ENXIO;
 169     }
 170     if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL,
 171                                 ata_interrupt, ch, &ch->ih))) {
 172         bus_release_resource(dev, SYS_RES_IRQ, rid, ch->r_irq);
 173         device_printf(dev, "unable to setup interrupt\n");
 174         return error;
 175     }
 176
 177         if (ch->flags & ATA_PERIODIC_POLL)
 178                 callout_reset(&ch->poll_callout, hz, ata_periodic_poll, ch);
 179         mtx_lock(&ch->state_mtx);
 180         /* Create the device queue for our SIM. */
 181         devq = cam_simq_alloc(1);
 182         if (devq == NULL) {
 183                 device_printf(dev, "Unable to allocate simq\n");
 184                 error = ENOMEM;
 185                 goto err1;
 186         }
 187         /* Construct SIM entry */
 188         ch->sim = cam_sim_alloc(ataaction, atapoll, "ata", ch,
 189             device_get_unit(dev), &ch->state_mtx, 1, 0, devq);
 190         if (ch->sim == NULL) {
 191                 device_printf(dev, "unable to allocate sim\n");
 192                 cam_simq_free(devq);
 193                 error = ENOMEM;
 194                 goto err1;
 195         }
 196         if (xpt_bus_register(ch->sim, dev, 0) != CAM_SUCCESS) {
 197                 device_printf(dev, "unable to register xpt bus\n");
 198                 error = ENXIO;
 199                 goto err2;
 200         }
 201         if (xpt_create_path(&ch->path, /*periph*/NULL, cam_sim_path(ch->sim),
 202             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
 203                 device_printf(dev, "unable to create path\n");
 204                 error = ENXIO;
 205                 goto err3;
 206         }
 207         mtx_unlock(&ch->state_mtx);
 208         return (0);
 209
 210 err3:
 211         xpt_bus_deregister(cam_sim_path(ch->sim));
 212 err2:
 213         cam_sim_free(ch->sim, /*free_devq*/TRUE);
 214         ch->sim = NULL;
 215 err1:
 216         bus_release_resource(dev, SYS_RES_IRQ, rid, ch->r_irq);
 217         mtx_unlock(&ch->state_mtx);
 218         if (ch->flags & ATA_PERIODIC_POLL)
 219                 callout_drain(&ch->poll_callout);
 220         return (error);
 221 }
 222
 223 int
 224 ata_detach(device_t dev)
 225 {
 226     struct ata_channel *ch = device_get_softc(dev);
 227
 228     /* check that we have a valid channel to detach */
 229     if (!ch->r_irq)
 230         return ENXIO;
 231
 232     /* grap the channel lock so no new requests gets launched */
 233     mtx_lock(&ch->state_mtx);
 234     ch->state |= ATA_STALL_QUEUE;
 235     mtx_unlock(&ch->state_mtx);
 236     if (ch->flags & ATA_PERIODIC_POLL)
 237         callout_drain(&ch->poll_callout);
 238
 239     taskqueue_drain(taskqueue_thread, &ch->conntask);
 240
 241         mtx_lock(&ch->state_mtx);
 242         xpt_async(AC_LOST_DEVICE, ch->path, NULL);
 243         xpt_free_path(ch->path);
 244         xpt_bus_deregister(cam_sim_path(ch->sim));
 245         cam_sim_free(ch->sim, /*free_devq*/TRUE);
 246         ch->sim = NULL;
 247         mtx_unlock(&ch->state_mtx);
 248
 249     /* release resources */
 250     bus_teardown_intr(dev, ch->r_irq, ch->ih);
 251     bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq);
 252     ch->r_irq = NULL;
 253
 254     /* free DMA resources if DMA HW present*/
 255     if (ch->dma.free)
 256         ch->dma.free(dev);
 257
 258     mtx_destroy(&ch->state_mtx);
 259     return 0;
 260 }
 261
 262 static void
 263 ata_conn_event(void *context, int dummy)
 264 {
 265         device_t dev = (device_t)context;
 266         struct ata_channel *ch = device_get_softc(dev);
 267         union ccb *ccb;
 268
 269         mtx_lock(&ch->state_mtx);
 270         if (ch->sim == NULL) {
 271                 mtx_unlock(&ch->state_mtx);
 272                 return;
 273         }
 274         ata_reinit(dev);
 275         if ((ccb = xpt_alloc_ccb_nowait()) == NULL)
 276                 return;
 277         if (xpt_create_path(&ccb->ccb_h.path, NULL,
 278             cam_sim_path(ch->sim),
 279             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
 280                 xpt_free_ccb(ccb);
 281                 return;
 282         }
 283         xpt_rescan(ccb);
 284         mtx_unlock(&ch->state_mtx);
 285 }
 286
 287 int
 288 ata_reinit(device_t dev)
 289 {
 290     struct ata_channel *ch = device_get_softc(dev);
 291     struct ata_request *request;
 292
 293         xpt_freeze_simq(ch->sim, 1);
 294         if ((request = ch->running)) {
 295                 ch->running = NULL;
 296                 if (ch->state == ATA_ACTIVE)
 297                     ch->state = ATA_IDLE;
 298                 callout_stop(&request->callout);
 299                 if (ch->dma.unload)
 300                     ch->dma.unload(request);
 301                 request->result = ERESTART;
 302                 ata_cam_end_transaction(dev, request);
 303         }
 304         /* reset the controller HW, the channel and device(s) */
 305         ATA_RESET(dev);
 306         /* Tell the XPT about the event */
 307         xpt_async(AC_BUS_RESET, ch->path, NULL);
 308         xpt_release_simq(ch->sim, TRUE);
 309         return(0);
 310 }
 311
 312 int
 313 ata_suspend(device_t dev)
 314 {
 315     struct ata_channel *ch;
 316
 317     /* check for valid device */
 318     if (!dev || !(ch = device_get_softc(dev)))
 319         return ENXIO;
 320
 321         if (ch->flags & ATA_PERIODIC_POLL)
 322                 callout_drain(&ch->poll_callout);
 323         mtx_lock(&ch->state_mtx);
 324         xpt_freeze_simq(ch->sim, 1);
 325         while (ch->state != ATA_IDLE)
 326                 msleep(ch, &ch->state_mtx, PRIBIO, "atasusp", hz/100);
 327         mtx_unlock(&ch->state_mtx);
 328     return(0);
 329 }
 330
 331 int
 332 ata_resume(device_t dev)
 333 {
 334     struct ata_channel *ch;
 335     int error;
 336
 337     /* check for valid device */
 338     if (!dev || !(ch = device_get_softc(dev)))
 339         return ENXIO;
 340
 341         mtx_lock(&ch->state_mtx);
 342         error = ata_reinit(dev);
 343         xpt_release_simq(ch->sim, TRUE);
 344         mtx_unlock(&ch->state_mtx);
 345         if (ch->flags & ATA_PERIODIC_POLL)
 346                 callout_reset(&ch->poll_callout, hz, ata_periodic_poll, ch);
 347     return error;
 348 }
 349
 350 void
 351 ata_interrupt(void *data)
 352 {
 353     struct ata_channel *ch = (struct ata_channel *)data;
 354
 355     mtx_lock(&ch->state_mtx);
 356     ata_interrupt_locked(data);
 357     mtx_unlock(&ch->state_mtx);
 358 }
 359
 360 static void
 361 ata_interrupt_locked(void *data)
 362 {
 363     struct ata_channel *ch = (struct ata_channel *)data;
 364     struct ata_request *request;
 365
 366     do {
 367         /* ignore interrupt if its not for us */
 368         if (ch->hw.status && !ch->hw.status(ch->dev))
 369             break;
 370
 371         /* do we have a running request */
 372         if (!(request = ch->running))
 373             break;
 374
 375         ATA_DEBUG_RQ(request, "interrupt");
 376
 377         /* safetycheck for the right state */
 378         if (ch->state == ATA_IDLE) {
 379             device_printf(request->dev, "interrupt on idle channel ignored\n");
 380             break;
 381         }
 382
 383         /*
 384          * we have the HW locks, so end the transaction for this request
 385          * if it finishes immediately otherwise wait for next interrupt
 386          */
 387         if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) {
 388             ch->running = NULL;
 389             if (ch->state == ATA_ACTIVE)
 390                 ch->state = ATA_IDLE;
 391             ata_cam_end_transaction(ch->dev, request);
 392             return;
 393         }
 394     } while (0);
 395 }
 396
 397 static void
 398 ata_periodic_poll(void *data)
 399 {
 400     struct ata_channel *ch = (struct ata_channel *)data;
 401
 402     callout_reset(&ch->poll_callout, hz, ata_periodic_poll, ch);
 403     ata_interrupt(ch);
 404 }
 405
 406 void
 407 ata_print_cable(device_t dev, u_int8_t *who)
 408 {
 409     device_printf(dev,
 410                   "DMA limited to UDMA33, %s found non-ATA66 cable\n", who);
 411 }
 412
 413 /*
 414  * misc support functions
 415  */
 416 void
 417 ata_default_registers(device_t dev)
 418 {
 419     struct ata_channel *ch = device_get_softc(dev);
 420
 421     /* fill in the defaults from whats setup already */
 422     ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res;
 423     ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset;
 424     ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res;
 425     ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset;
 426     ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res;
 427     ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset;
 428     ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res;
 429     ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset;
 430 }
 431
 432 void
 433 ata_udelay(int interval)
 434 {
 435     /* for now just use DELAY, the timer/sleep subsytems are not there yet */
 436     if (1 || interval < (1000000/hz) || ata_delayed_attach)
 437         DELAY(interval);
 438     else
 439         pause("ataslp", interval/(1000000/hz));
 440 }
 441
 442 const char *
 443 ata_cmd2str(struct ata_request *request)
 444 {
 445         static char buffer[20];
 446
 447         if (request->flags & ATA_R_ATAPI) {
 448                 switch (request->u.atapi.sense.key ?
 449                     request->u.atapi.saved_cmd : request->u.atapi.ccb[0]) {
 450                 case 0x00: return ("TEST_UNIT_READY");
 451                 case 0x01: return ("REZERO");
 452                 case 0x03: return ("REQUEST_SENSE");
 453                 case 0x04: return ("FORMAT");
 454                 case 0x08: return ("READ");
 455                 case 0x0a: return ("WRITE");
 456                 case 0x10: return ("WEOF");
 457                 case 0x11: return ("SPACE");
 458                 case 0x12: return ("INQUIRY");
 459                 case 0x15: return ("MODE_SELECT");
 460                 case 0x19: return ("ERASE");
 461                 case 0x1a: return ("MODE_SENSE");
 462                 case 0x1b: return ("START_STOP");
 463                 case 0x1e: return ("PREVENT_ALLOW");
 464                 case 0x23: return ("ATAPI_READ_FORMAT_CAPACITIES");
 465                 case 0x25: return ("READ_CAPACITY");
 466                 case 0x28: return ("READ_BIG");
 467                 case 0x2a: return ("WRITE_BIG");
 468                 case 0x2b: return ("LOCATE");
 469                 case 0x34: return ("READ_POSITION");
 470                 case 0x35: return ("SYNCHRONIZE_CACHE");
 471                 case 0x3b: return ("WRITE_BUFFER");
 472                 case 0x3c: return ("READ_BUFFER");
 473                 case 0x42: return ("READ_SUBCHANNEL");
 474                 case 0x43: return ("READ_TOC");
 475                 case 0x45: return ("PLAY_10");
 476                 case 0x47: return ("PLAY_MSF");
 477                 case 0x48: return ("PLAY_TRACK");
 478                 case 0x4b: return ("PAUSE");
 479                 case 0x51: return ("READ_DISK_INFO");
 480                 case 0x52: return ("READ_TRACK_INFO");
 481                 case 0x53: return ("RESERVE_TRACK");
 482                 case 0x54: return ("SEND_OPC_INFO");
 483                 case 0x55: return ("MODE_SELECT_BIG");
 484                 case 0x58: return ("REPAIR_TRACK");
 485                 case 0x59: return ("READ_MASTER_CUE");
 486                 case 0x5a: return ("MODE_SENSE_BIG");
 487                 case 0x5b: return ("CLOSE_TRACK/SESSION");
 488                 case 0x5c: return ("READ_BUFFER_CAPACITY");
 489                 case 0x5d: return ("SEND_CUE_SHEET");
 490                 case 0x96: return ("SERVICE_ACTION_IN");
 491                 case 0xa1: return ("BLANK_CMD");
 492                 case 0xa3: return ("SEND_KEY");
 493                 case 0xa4: return ("REPORT_KEY");
 494                 case 0xa5: return ("PLAY_12");
 495                 case 0xa6: return ("LOAD_UNLOAD");
 496                 case 0xad: return ("READ_DVD_STRUCTURE");
 497                 case 0xb4: return ("PLAY_CD");
 498                 case 0xbb: return ("SET_SPEED");
 499                 case 0xbd: return ("MECH_STATUS");
 500                 case 0xbe: return ("READ_CD");
 501                 case 0xff: return ("POLL_DSC");
 502                 }
 503         } else {
 504                 switch (request->u.ata.command) {
 505                 case 0x00: return ("NOP");
 506                 case 0x08: return ("DEVICE_RESET");
 507                 case 0x20: return ("READ");
 508                 case 0x24: return ("READ48");
 509                 case 0x25: return ("READ_DMA48");
 510                 case 0x26: return ("READ_DMA_QUEUED48");
 511                 case 0x27: return ("READ_NATIVE_MAX_ADDRESS48");
 512                 case 0x29: return ("READ_MUL48");
 513                 case 0x30: return ("WRITE");
 514                 case 0x34: return ("WRITE48");
 515                 case 0x35: return ("WRITE_DMA48");
 516                 case 0x36: return ("WRITE_DMA_QUEUED48");
 517                 case 0x37: return ("SET_MAX_ADDRESS48");
 518                 case 0x39: return ("WRITE_MUL48");
 519                 case 0x70: return ("SEEK");
 520                 case 0xa0: return ("PACKET_CMD");
 521                 case 0xa1: return ("ATAPI_IDENTIFY");
 522                 case 0xa2: return ("SERVICE");
 523                 case 0xb0: return ("SMART");
 524                 case 0xc0: return ("CFA ERASE");
 525                 case 0xc4: return ("READ_MUL");
 526                 case 0xc5: return ("WRITE_MUL");
 527                 case 0xc6: return ("SET_MULTI");
 528                 case 0xc7: return ("READ_DMA_QUEUED");
 529                 case 0xc8: return ("READ_DMA");
 530                 case 0xca: return ("WRITE_DMA");
 531                 case 0xcc: return ("WRITE_DMA_QUEUED");
 532                 case 0xe6: return ("SLEEP");
 533                 case 0xe7: return ("FLUSHCACHE");
 534                 case 0xea: return ("FLUSHCACHE48");
 535                 case 0xec: return ("ATA_IDENTIFY");
 536                 case 0xef:
 537                         switch (request->u.ata.feature) {
 538                         case 0x03: return ("SETFEATURES SET TRANSFER MODE");
 539                         case 0x02: return ("SETFEATURES ENABLE WCACHE");
 540                         case 0x82: return ("SETFEATURES DISABLE WCACHE");
 541                         case 0xaa: return ("SETFEATURES ENABLE RCACHE");
 542                         case 0x55: return ("SETFEATURES DISABLE RCACHE");
 543                         }
 544                         sprintf(buffer, "SETFEATURES 0x%02x",
 545                             request->u.ata.feature);
 546                         return (buffer);
 547                 case 0xf5: return ("SECURITY_FREE_LOCK");
 548                 case 0xf8: return ("READ_NATIVE_MAX_ADDRESS");
 549                 case 0xf9: return ("SET_MAX_ADDRESS");
 550                 }
 551         }
 552         sprintf(buffer, "unknown CMD (0x%02x)", request->u.ata.command);
 553         return (buffer);
 554 }
 555
 556 const char *
 557 ata_mode2str(int mode)
 558 {
 559     switch (mode) {
 560     case -1: return "UNSUPPORTED";
 561     case ATA_PIO0: return "PIO0";
 562     case ATA_PIO1: return "PIO1";
 563     case ATA_PIO2: return "PIO2";
 564     case ATA_PIO3: return "PIO3";
 565     case ATA_PIO4: return "PIO4";
 566     case ATA_WDMA0: return "WDMA0";
 567     case ATA_WDMA1: return "WDMA1";
 568     case ATA_WDMA2: return "WDMA2";
 569     case ATA_UDMA0: return "UDMA16";
 570     case ATA_UDMA1: return "UDMA25";
 571     case ATA_UDMA2: return "UDMA33";
 572     case ATA_UDMA3: return "UDMA40";
 573     case ATA_UDMA4: return "UDMA66";
 574     case ATA_UDMA5: return "UDMA100";
 575     case ATA_UDMA6: return "UDMA133";
 576     case ATA_SA150: return "SATA150";
 577     case ATA_SA300: return "SATA300";
 578     default:
 579         if (mode & ATA_DMA_MASK)
 580             return "BIOSDMA";
 581         else
 582             return "BIOSPIO";
 583     }
 584 }
 585
 586 static int
 587 ata_str2mode(const char *str)
 588 {
 589
 590         if (!strcasecmp(str, "PIO0")) return (ATA_PIO0);
 591         if (!strcasecmp(str, "PIO1")) return (ATA_PIO1);
 592         if (!strcasecmp(str, "PIO2")) return (ATA_PIO2);
 593         if (!strcasecmp(str, "PIO3")) return (ATA_PIO3);
 594         if (!strcasecmp(str, "PIO4")) return (ATA_PIO4);
 595         if (!strcasecmp(str, "WDMA0")) return (ATA_WDMA0);
 596         if (!strcasecmp(str, "WDMA1")) return (ATA_WDMA1);
 597         if (!strcasecmp(str, "WDMA2")) return (ATA_WDMA2);
 598         if (!strcasecmp(str, "UDMA0")) return (ATA_UDMA0);
 599         if (!strcasecmp(str, "UDMA16")) return (ATA_UDMA0);
 600         if (!strcasecmp(str, "UDMA1")) return (ATA_UDMA1);
 601         if (!strcasecmp(str, "UDMA25")) return (ATA_UDMA1);
 602         if (!strcasecmp(str, "UDMA2")) return (ATA_UDMA2);
 603         if (!strcasecmp(str, "UDMA33")) return (ATA_UDMA2);
 604         if (!strcasecmp(str, "UDMA3")) return (ATA_UDMA3);
 605         if (!strcasecmp(str, "UDMA44")) return (ATA_UDMA3);
 606         if (!strcasecmp(str, "UDMA4")) return (ATA_UDMA4);
 607         if (!strcasecmp(str, "UDMA66")) return (ATA_UDMA4);
 608         if (!strcasecmp(str, "UDMA5")) return (ATA_UDMA5);
 609         if (!strcasecmp(str, "UDMA100")) return (ATA_UDMA5);
 610         if (!strcasecmp(str, "UDMA6")) return (ATA_UDMA6);
 611         if (!strcasecmp(str, "UDMA133")) return (ATA_UDMA6);
 612         return (-1);
 613 }
 614
 615 int
 616 ata_atapi(device_t dev, int target)
 617 {
 618     struct ata_channel *ch = device_get_softc(dev);
 619
 620     return (ch->devices & (ATA_ATAPI_MASTER << target));
 621 }
 622
 623 void
 624 ata_timeout(struct ata_request *request)
 625 {
 626         struct ata_channel *ch;
 627
 628         ch = device_get_softc(request->parent);
 629         //request->flags |= ATA_R_DEBUG;
 630         ATA_DEBUG_RQ(request, "timeout");
 631
 632         /*
 633          * If we have an ATA_ACTIVE request running, we flag the request
 634          * ATA_R_TIMEOUT so ata_cam_end_transaction() will handle it correctly.
 635          * Also, NULL out the running request so we wont loose the race with
 636          * an eventual interrupt arriving late.
 637          */
 638         if (ch->state == ATA_ACTIVE) {
 639                 request->flags |= ATA_R_TIMEOUT;
 640                 if (ch->dma.unload)
 641                         ch->dma.unload(request);
 642                 ch->running = NULL;
 643                 ch->state = ATA_IDLE;
 644                 ata_cam_end_transaction(ch->dev, request);
 645         }
 646         mtx_unlock(&ch->state_mtx);
 647 }
 648
 649 static void
 650 ata_cam_begin_transaction(device_t dev, union ccb *ccb)
 651 {
 652         struct ata_channel *ch = device_get_softc(dev);
 653         struct ata_request *request;
 654
 655         if (!(request = ata_alloc_request())) {
 656                 device_printf(dev, "FAILURE - out of memory in start\n");
 657                 ccb->ccb_h.status = CAM_REQ_INVALID;
 658                 xpt_done(ccb);
 659                 return;
 660         }
 661         bzero(request, sizeof(*request));
 662
 663         /* setup request */
 664         request->dev = NULL;
 665         request->parent = dev;
 666         request->unit = ccb->ccb_h.target_id;
 667         if (ccb->ccb_h.func_code == XPT_ATA_IO) {
 668                 request->data = ccb->ataio.data_ptr;
 669                 request->bytecount = ccb->ataio.dxfer_len;
 670                 request->u.ata.command = ccb->ataio.cmd.command;
 671                 request->u.ata.feature = ((uint16_t)ccb->ataio.cmd.features_exp << 8) |
 672                                           (uint16_t)ccb->ataio.cmd.features;
 673                 request->u.ata.count = ((uint16_t)ccb->ataio.cmd.sector_count_exp << 8) |
 674                                         (uint16_t)ccb->ataio.cmd.sector_count;
 675                 if (ccb->ataio.cmd.flags & CAM_ATAIO_48BIT) {
 676                         request->flags |= ATA_R_48BIT;
 677                         request->u.ata.lba =
 678                                      ((uint64_t)ccb->ataio.cmd.lba_high_exp << 40) |
 679                                      ((uint64_t)ccb->ataio.cmd.lba_mid_exp << 32) |
 680                                      ((uint64_t)ccb->ataio.cmd.lba_low_exp << 24);
 681                 } else {
 682                         request->u.ata.lba =
 683                                      ((uint64_t)(ccb->ataio.cmd.device & 0x0f) << 24);
 684                 }
 685                 request->u.ata.lba |= ((uint64_t)ccb->ataio.cmd.lba_high << 16) |
 686                                       ((uint64_t)ccb->ataio.cmd.lba_mid << 8) |
 687                                        (uint64_t)ccb->ataio.cmd.lba_low;
 688                 if (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)
 689                         request->flags |= ATA_R_NEEDRESULT;
 690                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE &&
 691                     ccb->ataio.cmd.flags & CAM_ATAIO_DMA)
 692                         request->flags |= ATA_R_DMA;
 693                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 694                         request->flags |= ATA_R_READ;
 695                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
 696                         request->flags |= ATA_R_WRITE;
 697                 if (ccb->ataio.cmd.command == ATA_READ_MUL ||
 698                     ccb->ataio.cmd.command == ATA_READ_MUL48 ||
 699                     ccb->ataio.cmd.command == ATA_WRITE_MUL ||
 700                     ccb->ataio.cmd.command == ATA_WRITE_MUL48) {
 701                         request->transfersize = min(request->bytecount,
 702                             ch->curr[ccb->ccb_h.target_id].bytecount);
 703                 } else
 704                         request->transfersize = min(request->bytecount, 512);
 705         } else {
 706                 request->data = ccb->csio.data_ptr;
 707                 request->bytecount = ccb->csio.dxfer_len;
 708                 bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ?
 709                     ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes,
 710                     request->u.atapi.ccb, ccb->csio.cdb_len);
 711                 request->flags |= ATA_R_ATAPI;
 712                 if (ch->curr[ccb->ccb_h.target_id].atapi == 16)
 713                         request->flags |= ATA_R_ATAPI16;
 714                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE &&
 715                     ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA)
 716                         request->flags |= ATA_R_DMA;
 717                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 718                         request->flags |= ATA_R_READ;
 719                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
 720                         request->flags |= ATA_R_WRITE;
 721                 request->transfersize = min(request->bytecount,
 722                     ch->curr[ccb->ccb_h.target_id].bytecount);
 723         }
 724         request->retries = 0;
 725         request->timeout = (ccb->ccb_h.timeout + 999) / 1000;
 726         callout_init_mtx(&request->callout, &ch->state_mtx, CALLOUT_RETURNUNLOCKED);
 727         request->ccb = ccb;
 728         request->flags |= ATA_R_DATA_IN_CCB;
 729
 730         ch->running = request;
 731         ch->state = ATA_ACTIVE;
 732         if (ch->hw.begin_transaction(request) == ATA_OP_FINISHED) {
 733             ch->running = NULL;
 734             ch->state = ATA_IDLE;
 735             ata_cam_end_transaction(dev, request);
 736             return;
 737         }
 738 }
 739
 740 static void
 741 ata_cam_request_sense(device_t dev, struct ata_request *request)
 742 {
 743         struct ata_channel *ch = device_get_softc(dev);
 744         union ccb *ccb = request->ccb;
 745
 746         ch->requestsense = 1;
 747
 748         bzero(request, sizeof(*request));
 749         request->dev = NULL;
 750         request->parent = dev;
 751         request->unit = ccb->ccb_h.target_id;
 752         request->data = (void *)&ccb->csio.sense_data;
 753         request->bytecount = ccb->csio.sense_len;
 754         request->u.atapi.ccb[0] = ATAPI_REQUEST_SENSE;
 755         request->u.atapi.ccb[4] = ccb->csio.sense_len;
 756         request->flags |= ATA_R_ATAPI;
 757         if (ch->curr[ccb->ccb_h.target_id].atapi == 16)
 758                 request->flags |= ATA_R_ATAPI16;
 759         if (ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA)
 760                 request->flags |= ATA_R_DMA;
 761         request->flags |= ATA_R_READ;
 762         request->transfersize = min(request->bytecount,
 763             ch->curr[ccb->ccb_h.target_id].bytecount);
 764         request->retries = 0;
 765         request->timeout = (ccb->ccb_h.timeout + 999) / 1000;
 766         callout_init_mtx(&request->callout, &ch->state_mtx, CALLOUT_RETURNUNLOCKED);
 767         request->ccb = ccb;
 768
 769         ch->running = request;
 770         ch->state = ATA_ACTIVE;
 771         if (ch->hw.begin_transaction(request) == ATA_OP_FINISHED) {
 772                 ch->running = NULL;
 773                 ch->state = ATA_IDLE;
 774                 ata_cam_end_transaction(dev, request);
 775                 return;
 776         }
 777 }
 778
 779 static void
 780 ata_cam_process_sense(device_t dev, struct ata_request *request)
 781 {
 782         struct ata_channel *ch = device_get_softc(dev);
 783         union ccb *ccb = request->ccb;
 784         int fatalerr = 0;
 785
 786         ch->requestsense = 0;
 787
 788         if (request->flags & ATA_R_TIMEOUT)
 789                 fatalerr = 1;
 790         if ((request->flags & ATA_R_TIMEOUT) == 0 &&
 791             (request->status & ATA_S_ERROR) == 0 &&
 792             request->result == 0) {
 793                 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
 794         } else {
 795                 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
 796                 ccb->ccb_h.status |= CAM_AUTOSENSE_FAIL;
 797         }
 798
 799         ata_free_request(request);
 800         xpt_done(ccb);
 801         /* Do error recovery if needed. */
 802         if (fatalerr)
 803                 ata_reinit(dev);
 804 }
 805
 806 static void
 807 ata_cam_end_transaction(device_t dev, struct ata_request *request)
 808 {
 809         struct ata_channel *ch = device_get_softc(dev);
 810         union ccb *ccb = request->ccb;
 811         int fatalerr = 0;
 812
 813         if (ch->requestsense) {
 814                 ata_cam_process_sense(dev, request);
 815                 return;
 816         }
 817
 818         ccb->ccb_h.status &= ~CAM_STATUS_MASK;
 819         if (request->flags & ATA_R_TIMEOUT) {
 820                 xpt_freeze_simq(ch->sim, 1);
 821                 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
 822                 ccb->ccb_h.status |= CAM_CMD_TIMEOUT | CAM_RELEASE_SIMQ;
 823                 fatalerr = 1;
 824         } else if (request->status & ATA_S_ERROR) {
 825                 if (ccb->ccb_h.func_code == XPT_ATA_IO) {
 826                         ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR;
 827                 } else {
 828                         ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
 829                         ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
 830                 }
 831         } else if (request->result == ERESTART)
 832                 ccb->ccb_h.status |= CAM_REQUEUE_REQ;
 833         else if (request->result != 0)
 834                 ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
 835         else
 836                 ccb->ccb_h.status |= CAM_REQ_CMP;
 837         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP &&
 838             !(ccb->ccb_h.status & CAM_DEV_QFRZN)) {
 839                 xpt_freeze_devq(ccb->ccb_h.path, 1);
 840                 ccb->ccb_h.status |= CAM_DEV_QFRZN;
 841         }
 842         if (ccb->ccb_h.func_code == XPT_ATA_IO &&
 843             ((request->status & ATA_S_ERROR) ||
 844             (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT))) {
 845                 struct ata_res *res = &ccb->ataio.res;
 846                 res->status = request->status;
 847                 res->error = request->error;
 848                 res->lba_low = request->u.ata.lba;
 849                 res->lba_mid = request->u.ata.lba >> 8;
 850                 res->lba_high = request->u.ata.lba >> 16;
 851                 res->device = request->u.ata.lba >> 24;
 852                 res->lba_low_exp = request->u.ata.lba >> 24;
 853                 res->lba_mid_exp = request->u.ata.lba >> 32;
 854                 res->lba_high_exp = request->u.ata.lba >> 40;
 855                 res->sector_count = request->u.ata.count;
 856                 res->sector_count_exp = request->u.ata.count >> 8;
 857         }
 858         if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
 859                 if (ccb->ccb_h.func_code == XPT_ATA_IO) {
 860                         ccb->ataio.resid =
 861                             ccb->ataio.dxfer_len - request->donecount;
 862                 } else {
 863                         ccb->csio.resid =
 864                             ccb->csio.dxfer_len - request->donecount;
 865                 }
 866         }
 867         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR &&
 868             (ccb->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0)
 869                 ata_cam_request_sense(dev, request);
 870         else {
 871                 ata_free_request(request);
 872                 xpt_done(ccb);
 873         }
 874         /* Do error recovery if needed. */
 875         if (fatalerr)
 876                 ata_reinit(dev);
 877 }
 878
 879 static int
 880 ata_check_ids(device_t dev, union ccb *ccb)
 881 {
 882         struct ata_channel *ch = device_get_softc(dev);
 883
 884         if (ccb->ccb_h.target_id > ((ch->flags & ATA_NO_SLAVE) ? 0 : 1)) {
 885                 ccb->ccb_h.status = CAM_TID_INVALID;
 886                 xpt_done(ccb);
 887                 return (-1);
 888         }
 889         if (ccb->ccb_h.target_lun != 0) {
 890                 ccb->ccb_h.status = CAM_LUN_INVALID;
 891                 xpt_done(ccb);
 892                 return (-1);
 893         }
 894         return (0);
 895 }
 896
 897 static void
 898 ataaction(struct cam_sim *sim, union ccb *ccb)
 899 {
 900         device_t dev, parent;
 901         struct ata_channel *ch;
 902
 903         CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ataaction func_code=%x\n",
 904             ccb->ccb_h.func_code));
 905
 906         ch = (struct ata_channel *)cam_sim_softc(sim);
 907         dev = ch->dev;
 908         switch (ccb->ccb_h.func_code) {
 909         /* Common cases first */
 910         case XPT_ATA_IO:        /* Execute the requested I/O operation */
 911         case XPT_SCSI_IO:
 912                 if (ata_check_ids(dev, ccb))
 913                         return;
 914                 if ((ch->devices & ((ATA_ATA_MASTER | ATA_ATAPI_MASTER)
 915                     << ccb->ccb_h.target_id)) == 0) {
 916                         ccb->ccb_h.status = CAM_SEL_TIMEOUT;
 917                         break;
 918                 }
 919                 if (ch->running)
 920                         device_printf(dev, "already running!\n");
 921                 if (ccb->ccb_h.func_code == XPT_ATA_IO &&
 922                     (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) &&
 923                     (ccb->ataio.cmd.control & ATA_A_RESET)) {
 924                         struct ata_res *res = &ccb->ataio.res;
 925
 926                         bzero(res, sizeof(*res));
 927                         if (ch->devices & (ATA_ATA_MASTER << ccb->ccb_h.target_id)) {
 928                                 res->lba_high = 0;
 929                                 res->lba_mid = 0;
 930                         } else {
 931                                 res->lba_high = 0xeb;
 932                                 res->lba_mid = 0x14;
 933                         }
 934                         ccb->ccb_h.status = CAM_REQ_CMP;
 935                         break;
 936                 }
 937                 ata_cam_begin_transaction(dev, ccb);
 938                 return;
 939         case XPT_EN_LUN:                /* Enable LUN as a target */
 940         case XPT_TARGET_IO:             /* Execute target I/O request */
 941         case XPT_ACCEPT_TARGET_IO:      /* Accept Host Target Mode CDB */
 942         case XPT_CONT_TARGET_IO:        /* Continue Host Target I/O Connection*/
 943         case XPT_ABORT:                 /* Abort the specified CCB */
 944                 /* XXX Implement */
 945                 ccb->ccb_h.status = CAM_REQ_INVALID;
 946                 break;
 947         case XPT_SET_TRAN_SETTINGS:
 948         {
 949                 struct  ccb_trans_settings *cts = &ccb->cts;
 950                 struct  ata_cam_device *d;
 951
 952                 if (ata_check_ids(dev, ccb))
 953                         return;
 954                 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
 955                         d = &ch->curr[ccb->ccb_h.target_id];
 956                 else
 957                         d = &ch->user[ccb->ccb_h.target_id];
 958                 if (ch->flags & ATA_SATA) {
 959                         if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION)
 960                                 d->revision = cts->xport_specific.sata.revision;
 961                         if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) {
 962                                 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
 963                                         d->mode = ATA_SETMODE(ch->dev,
 964                                             ccb->ccb_h.target_id,
 965                                             cts->xport_specific.sata.mode);
 966                                 } else
 967                                         d->mode = cts->xport_specific.sata.mode;
 968                         }
 969                         if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT)
 970                                 d->bytecount = min(8192, cts->xport_specific.sata.bytecount);
 971                         if (cts->xport_specific.sata.valid & CTS_SATA_VALID_ATAPI)
 972                                 d->atapi = cts->xport_specific.sata.atapi;
 973                         if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS)
 974                                 d->caps = cts->xport_specific.sata.caps;
 975                 } else {
 976                         if (cts->xport_specific.ata.valid & CTS_ATA_VALID_MODE) {
 977                                 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
 978                                         d->mode = ATA_SETMODE(ch->dev,
 979                                             ccb->ccb_h.target_id,
 980                                             cts->xport_specific.ata.mode);
 981                                 } else
 982                                         d->mode = cts->xport_specific.ata.mode;
 983                         }
 984                         if (cts->xport_specific.ata.valid & CTS_ATA_VALID_BYTECOUNT)
 985                                 d->bytecount = cts->xport_specific.ata.bytecount;
 986                         if (cts->xport_specific.ata.valid & CTS_ATA_VALID_ATAPI)
 987                                 d->atapi = cts->xport_specific.ata.atapi;
 988                         if (cts->xport_specific.ata.valid & CTS_ATA_VALID_CAPS)
 989                                 d->caps = cts->xport_specific.ata.caps;
 990                 }
 991                 ccb->ccb_h.status = CAM_REQ_CMP;
 992                 break;
 993         }
 994         case XPT_GET_TRAN_SETTINGS:
 995         {
 996                 struct  ccb_trans_settings *cts = &ccb->cts;
 997                 struct  ata_cam_device *d;
 998
 999                 if (ata_check_ids(dev, ccb))
1000                         return;
1001                 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
1002                         d = &ch->curr[ccb->ccb_h.target_id];
1003                 else
1004                         d = &ch->user[ccb->ccb_h.target_id];
1005                 cts->protocol = PROTO_UNSPECIFIED;
1006                 cts->protocol_version = PROTO_VERSION_UNSPECIFIED;
1007                 if (ch->flags & ATA_SATA) {
1008                         cts->transport = XPORT_SATA;
1009                         cts->transport_version = XPORT_VERSION_UNSPECIFIED;
1010                         cts->xport_specific.sata.valid = 0;
1011                         cts->xport_specific.sata.mode = d->mode;
1012                         cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE;
1013                         cts->xport_specific.sata.bytecount = d->bytecount;
1014                         cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT;
1015                         if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
1016                                 cts->xport_specific.sata.revision =
1017                                     ATA_GETREV(dev, ccb->ccb_h.target_id);
1018                                 if (cts->xport_specific.sata.revision != 0xff) {
1019                                         cts->xport_specific.sata.valid |=
1020                                             CTS_SATA_VALID_REVISION;
1021                                 }
1022                                 cts->xport_specific.sata.caps =
1023                                     d->caps & CTS_SATA_CAPS_D;
1024                                 if (ch->pm_level) {
1025                                         cts->xport_specific.sata.caps |=
1026                                             CTS_SATA_CAPS_H_PMREQ;
1027                                 }
1028                                 cts->xport_specific.sata.caps &=
1029                                     ch->user[ccb->ccb_h.target_id].caps;
1030                         } else {
1031                                 cts->xport_specific.sata.revision = d->revision;
1032                                 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION;
1033                                 cts->xport_specific.sata.caps = d->caps;
1034                         }
1035                         cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS;
1036                         cts->xport_specific.sata.atapi = d->atapi;
1037                         cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI;
1038                 } else {
1039                         cts->transport = XPORT_ATA;
1040                         cts->transport_version = XPORT_VERSION_UNSPECIFIED;
1041                         cts->xport_specific.ata.valid = 0;
1042                         cts->xport_specific.ata.mode = d->mode;
1043                         cts->xport_specific.ata.valid |= CTS_ATA_VALID_MODE;
1044                         cts->xport_specific.ata.bytecount = d->bytecount;
1045                         cts->xport_specific.ata.valid |= CTS_ATA_VALID_BYTECOUNT;
1046                         if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
1047                                 cts->xport_specific.ata.caps =
1048                                     d->caps & CTS_ATA_CAPS_D;
1049                                 if (!(ch->flags & ATA_NO_48BIT_DMA))
1050                                         cts->xport_specific.ata.caps |=
1051                                             CTS_ATA_CAPS_H_DMA48;
1052                                 cts->xport_specific.ata.caps &=
1053                                     ch->user[ccb->ccb_h.target_id].caps;
1054                         } else
1055                                 cts->xport_specific.ata.caps = d->caps;
1056                         cts->xport_specific.ata.valid |= CTS_ATA_VALID_CAPS;
1057                         cts->xport_specific.ata.atapi = d->atapi;
1058                         cts->xport_specific.ata.valid |= CTS_ATA_VALID_ATAPI;
1059                 }
1060                 ccb->ccb_h.status = CAM_REQ_CMP;
1061                 break;
1062         }
1063         case XPT_RESET_BUS:             /* Reset the specified SCSI bus */
1064         case XPT_RESET_DEV:     /* Bus Device Reset the specified SCSI device */
1065                 ata_reinit(dev);
1066                 ccb->ccb_h.status = CAM_REQ_CMP;
1067                 break;
1068         case XPT_TERM_IO:               /* Terminate the I/O process */
1069                 /* XXX Implement */
1070                 ccb->ccb_h.status = CAM_REQ_INVALID;
1071                 break;
1072         case XPT_PATH_INQ:              /* Path routing inquiry */
1073         {
1074                 struct ccb_pathinq *cpi = &ccb->cpi;
1075
1076                 parent = device_get_parent(dev);
1077                 cpi->version_num = 1; /* XXX??? */
1078                 cpi->hba_inquiry = PI_SDTR_ABLE;
1079                 cpi->target_sprt = 0;
1080                 cpi->hba_misc = PIM_SEQSCAN;
1081                 cpi->hba_eng_cnt = 0;
1082                 if (ch->flags & ATA_NO_SLAVE)
1083                         cpi->max_target = 0;
1084                 else
1085                         cpi->max_target = 1;
1086                 cpi->max_lun = 0;
1087                 cpi->initiator_id = 0;
1088                 cpi->bus_id = cam_sim_bus(sim);
1089                 if (ch->flags & ATA_SATA)
1090                         cpi->base_transfer_speed = 150000;
1091                 else
1092                         cpi->base_transfer_speed = 3300;
1093                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
1094                 strncpy(cpi->hba_vid, "ATA", HBA_IDLEN);
1095                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
1096                 cpi->unit_number = cam_sim_unit(sim);
1097                 if (ch->flags & ATA_SATA)
1098                         cpi->transport = XPORT_SATA;
1099                 else
1100                         cpi->transport = XPORT_ATA;
1101                 cpi->transport_version = XPORT_VERSION_UNSPECIFIED;
1102                 cpi->protocol = PROTO_ATA;
1103                 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED;
1104                 cpi->maxio = ch->dma.max_iosize ? ch->dma.max_iosize : DFLTPHYS;
1105                 if (device_get_devclass(device_get_parent(parent)) ==
1106                     devclass_find("pci")) {
1107                         cpi->hba_vendor = pci_get_vendor(parent);
1108                         cpi->hba_device = pci_get_device(parent);
1109                         cpi->hba_subvendor = pci_get_subvendor(parent);
1110                         cpi->hba_subdevice = pci_get_subdevice(parent);
1111                 }
1112                 cpi->ccb_h.status = CAM_REQ_CMP;
1113                 break;
1114         }
1115         default:
1116                 ccb->ccb_h.status = CAM_REQ_INVALID;
1117                 break;
1118         }
1119         xpt_done(ccb);
1120 }
1121
1122 static void
1123 atapoll(struct cam_sim *sim)
1124 {
1125         struct ata_channel *ch = (struct ata_channel *)cam_sim_softc(sim);
1126
1127         ata_interrupt_locked(ch);
1128 }
1129
1130 /*
1131  * module handeling
1132  */
1133 static int
1134 ata_module_event_handler(module_t mod, int what, void *arg)
1135 {
1136
1137     switch (what) {
1138     case MOD_LOAD:
1139         return 0;
1140
1141     case MOD_UNLOAD:
1142         return 0;
1143
1144     default:
1145         return EOPNOTSUPP;
1146     }
1147 }
1148
1149 static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL };
1150 DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND);
1151 MODULE_VERSION(ata, 1);
1152 MODULE_DEPEND(ata, cam, 1, 1, 1);
1153
1154 static void
1155 ata_init(void)
1156 {
1157     ata_request_zone = uma_zcreate("ata_request", sizeof(struct ata_request),
1158                                    NULL, NULL, NULL, NULL, 0, 0);
1159 }
1160 SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL);
1161
1162 static void
1163 ata_uninit(void)
1164 {
1165     uma_zdestroy(ata_request_zone);
1166 }
1167 SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL);