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     xpt_batch_start(ch->sim);
 357     ata_interrupt_locked(data);
 358     xpt_batch_done(ch->sim);
 359     mtx_unlock(&ch->state_mtx);
 360 }
 361
 362 static void
 363 ata_interrupt_locked(void *data)
 364 {
 365     struct ata_channel *ch = (struct ata_channel *)data;
 366     struct ata_request *request;
 367
 368     do {
 369         /* ignore interrupt if its not for us */
 370         if (ch->hw.status && !ch->hw.status(ch->dev))
 371             break;
 372
 373         /* do we have a running request */
 374         if (!(request = ch->running))
 375             break;
 376
 377         ATA_DEBUG_RQ(request, "interrupt");
 378
 379         /* safetycheck for the right state */
 380         if (ch->state == ATA_IDLE) {
 381             device_printf(request->dev, "interrupt on idle channel ignored\n");
 382             break;
 383         }
 384
 385         /*
 386          * we have the HW locks, so end the transaction for this request
 387          * if it finishes immediately otherwise wait for next interrupt
 388          */
 389         if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) {
 390             ch->running = NULL;
 391             if (ch->state == ATA_ACTIVE)
 392                 ch->state = ATA_IDLE;
 393             ata_cam_end_transaction(ch->dev, request);
 394             return;
 395         }
 396     } while (0);
 397 }
 398
 399 static void
 400 ata_periodic_poll(void *data)
 401 {
 402     struct ata_channel *ch = (struct ata_channel *)data;
 403
 404     callout_reset(&ch->poll_callout, hz, ata_periodic_poll, ch);
 405     ata_interrupt(ch);
 406 }
 407
 408 void
 409 ata_print_cable(device_t dev, u_int8_t *who)
 410 {
 411     device_printf(dev,
 412                   "DMA limited to UDMA33, %s found non-ATA66 cable\n", who);
 413 }
 414
 415 /*
 416  * misc support functions
 417  */
 418 void
 419 ata_default_registers(device_t dev)
 420 {
 421     struct ata_channel *ch = device_get_softc(dev);
 422
 423     /* fill in the defaults from whats setup already */
 424     ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res;
 425     ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset;
 426     ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res;
 427     ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset;
 428     ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res;
 429     ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset;
 430     ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res;
 431     ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset;
 432 }
 433
 434 void
 435 ata_udelay(int interval)
 436 {
 437     /* for now just use DELAY, the timer/sleep subsytems are not there yet */
 438     if (1 || interval < (1000000/hz) || ata_delayed_attach)
 439         DELAY(interval);
 440     else
 441         pause("ataslp", interval/(1000000/hz));
 442 }
 443
 444 const char *
 445 ata_cmd2str(struct ata_request *request)
 446 {
 447         static char buffer[20];
 448
 449         if (request->flags & ATA_R_ATAPI) {
 450                 switch (request->u.atapi.sense.key ?
 451                     request->u.atapi.saved_cmd : request->u.atapi.ccb[0]) {
 452                 case 0x00: return ("TEST_UNIT_READY");
 453                 case 0x01: return ("REZERO");
 454                 case 0x03: return ("REQUEST_SENSE");
 455                 case 0x04: return ("FORMAT");
 456                 case 0x08: return ("READ");
 457                 case 0x0a: return ("WRITE");
 458                 case 0x10: return ("WEOF");
 459                 case 0x11: return ("SPACE");
 460                 case 0x12: return ("INQUIRY");
 461                 case 0x15: return ("MODE_SELECT");
 462                 case 0x19: return ("ERASE");
 463                 case 0x1a: return ("MODE_SENSE");
 464                 case 0x1b: return ("START_STOP");
 465                 case 0x1e: return ("PREVENT_ALLOW");
 466                 case 0x23: return ("ATAPI_READ_FORMAT_CAPACITIES");
 467                 case 0x25: return ("READ_CAPACITY");
 468                 case 0x28: return ("READ_BIG");
 469                 case 0x2a: return ("WRITE_BIG");
 470                 case 0x2b: return ("LOCATE");
 471                 case 0x34: return ("READ_POSITION");
 472                 case 0x35: return ("SYNCHRONIZE_CACHE");
 473                 case 0x3b: return ("WRITE_BUFFER");
 474                 case 0x3c: return ("READ_BUFFER");
 475                 case 0x42: return ("READ_SUBCHANNEL");
 476                 case 0x43: return ("READ_TOC");
 477                 case 0x45: return ("PLAY_10");
 478                 case 0x47: return ("PLAY_MSF");
 479                 case 0x48: return ("PLAY_TRACK");
 480                 case 0x4b: return ("PAUSE");
 481                 case 0x51: return ("READ_DISK_INFO");
 482                 case 0x52: return ("READ_TRACK_INFO");
 483                 case 0x53: return ("RESERVE_TRACK");
 484                 case 0x54: return ("SEND_OPC_INFO");
 485                 case 0x55: return ("MODE_SELECT_BIG");
 486                 case 0x58: return ("REPAIR_TRACK");
 487                 case 0x59: return ("READ_MASTER_CUE");
 488                 case 0x5a: return ("MODE_SENSE_BIG");
 489                 case 0x5b: return ("CLOSE_TRACK/SESSION");
 490                 case 0x5c: return ("READ_BUFFER_CAPACITY");
 491                 case 0x5d: return ("SEND_CUE_SHEET");
 492                 case 0x96: return ("SERVICE_ACTION_IN");
 493                 case 0xa1: return ("BLANK_CMD");
 494                 case 0xa3: return ("SEND_KEY");
 495                 case 0xa4: return ("REPORT_KEY");
 496                 case 0xa5: return ("PLAY_12");
 497                 case 0xa6: return ("LOAD_UNLOAD");
 498                 case 0xad: return ("READ_DVD_STRUCTURE");
 499                 case 0xb4: return ("PLAY_CD");
 500                 case 0xbb: return ("SET_SPEED");
 501                 case 0xbd: return ("MECH_STATUS");
 502                 case 0xbe: return ("READ_CD");
 503                 case 0xff: return ("POLL_DSC");
 504                 }
 505         } else {
 506                 switch (request->u.ata.command) {
 507                 case 0x00: return ("NOP");
 508                 case 0x08: return ("DEVICE_RESET");
 509                 case 0x20: return ("READ");
 510                 case 0x24: return ("READ48");
 511                 case 0x25: return ("READ_DMA48");
 512                 case 0x26: return ("READ_DMA_QUEUED48");
 513                 case 0x27: return ("READ_NATIVE_MAX_ADDRESS48");
 514                 case 0x29: return ("READ_MUL48");
 515                 case 0x30: return ("WRITE");
 516                 case 0x34: return ("WRITE48");
 517                 case 0x35: return ("WRITE_DMA48");
 518                 case 0x36: return ("WRITE_DMA_QUEUED48");
 519                 case 0x37: return ("SET_MAX_ADDRESS48");
 520                 case 0x39: return ("WRITE_MUL48");
 521                 case 0x70: return ("SEEK");
 522                 case 0xa0: return ("PACKET_CMD");
 523                 case 0xa1: return ("ATAPI_IDENTIFY");
 524                 case 0xa2: return ("SERVICE");
 525                 case 0xb0: return ("SMART");
 526                 case 0xc0: return ("CFA ERASE");
 527                 case 0xc4: return ("READ_MUL");
 528                 case 0xc5: return ("WRITE_MUL");
 529                 case 0xc6: return ("SET_MULTI");
 530                 case 0xc7: return ("READ_DMA_QUEUED");
 531                 case 0xc8: return ("READ_DMA");
 532                 case 0xca: return ("WRITE_DMA");
 533                 case 0xcc: return ("WRITE_DMA_QUEUED");
 534                 case 0xe6: return ("SLEEP");
 535                 case 0xe7: return ("FLUSHCACHE");
 536                 case 0xea: return ("FLUSHCACHE48");
 537                 case 0xec: return ("ATA_IDENTIFY");
 538                 case 0xef:
 539                         switch (request->u.ata.feature) {
 540                         case 0x03: return ("SETFEATURES SET TRANSFER MODE");
 541                         case 0x02: return ("SETFEATURES ENABLE WCACHE");
 542                         case 0x82: return ("SETFEATURES DISABLE WCACHE");
 543                         case 0xaa: return ("SETFEATURES ENABLE RCACHE");
 544                         case 0x55: return ("SETFEATURES DISABLE RCACHE");
 545                         }
 546                         sprintf(buffer, "SETFEATURES 0x%02x",
 547                             request->u.ata.feature);
 548                         return (buffer);
 549                 case 0xf5: return ("SECURITY_FREE_LOCK");
 550                 case 0xf8: return ("READ_NATIVE_MAX_ADDRESS");
 551                 case 0xf9: return ("SET_MAX_ADDRESS");
 552                 }
 553         }
 554         sprintf(buffer, "unknown CMD (0x%02x)", request->u.ata.command);
 555         return (buffer);
 556 }
 557
 558 const char *
 559 ata_mode2str(int mode)
 560 {
 561     switch (mode) {
 562     case -1: return "UNSUPPORTED";
 563     case ATA_PIO0: return "PIO0";
 564     case ATA_PIO1: return "PIO1";
 565     case ATA_PIO2: return "PIO2";
 566     case ATA_PIO3: return "PIO3";
 567     case ATA_PIO4: return "PIO4";
 568     case ATA_WDMA0: return "WDMA0";
 569     case ATA_WDMA1: return "WDMA1";
 570     case ATA_WDMA2: return "WDMA2";
 571     case ATA_UDMA0: return "UDMA16";
 572     case ATA_UDMA1: return "UDMA25";
 573     case ATA_UDMA2: return "UDMA33";
 574     case ATA_UDMA3: return "UDMA40";
 575     case ATA_UDMA4: return "UDMA66";
 576     case ATA_UDMA5: return "UDMA100";
 577     case ATA_UDMA6: return "UDMA133";
 578     case ATA_SA150: return "SATA150";
 579     case ATA_SA300: return "SATA300";
 580     default:
 581         if (mode & ATA_DMA_MASK)
 582             return "BIOSDMA";
 583         else
 584             return "BIOSPIO";
 585     }
 586 }
 587
 588 static int
 589 ata_str2mode(const char *str)
 590 {
 591
 592         if (!strcasecmp(str, "PIO0")) return (ATA_PIO0);
 593         if (!strcasecmp(str, "PIO1")) return (ATA_PIO1);
 594         if (!strcasecmp(str, "PIO2")) return (ATA_PIO2);
 595         if (!strcasecmp(str, "PIO3")) return (ATA_PIO3);
 596         if (!strcasecmp(str, "PIO4")) return (ATA_PIO4);
 597         if (!strcasecmp(str, "WDMA0")) return (ATA_WDMA0);
 598         if (!strcasecmp(str, "WDMA1")) return (ATA_WDMA1);
 599         if (!strcasecmp(str, "WDMA2")) return (ATA_WDMA2);
 600         if (!strcasecmp(str, "UDMA0")) return (ATA_UDMA0);
 601         if (!strcasecmp(str, "UDMA16")) return (ATA_UDMA0);
 602         if (!strcasecmp(str, "UDMA1")) return (ATA_UDMA1);
 603         if (!strcasecmp(str, "UDMA25")) return (ATA_UDMA1);
 604         if (!strcasecmp(str, "UDMA2")) return (ATA_UDMA2);
 605         if (!strcasecmp(str, "UDMA33")) return (ATA_UDMA2);
 606         if (!strcasecmp(str, "UDMA3")) return (ATA_UDMA3);
 607         if (!strcasecmp(str, "UDMA44")) return (ATA_UDMA3);
 608         if (!strcasecmp(str, "UDMA4")) return (ATA_UDMA4);
 609         if (!strcasecmp(str, "UDMA66")) return (ATA_UDMA4);
 610         if (!strcasecmp(str, "UDMA5")) return (ATA_UDMA5);
 611         if (!strcasecmp(str, "UDMA100")) return (ATA_UDMA5);
 612         if (!strcasecmp(str, "UDMA6")) return (ATA_UDMA6);
 613         if (!strcasecmp(str, "UDMA133")) return (ATA_UDMA6);
 614         return (-1);
 615 }
 616
 617 int
 618 ata_atapi(device_t dev, int target)
 619 {
 620     struct ata_channel *ch = device_get_softc(dev);
 621
 622     return (ch->devices & (ATA_ATAPI_MASTER << target));
 623 }
 624
 625 void
 626 ata_timeout(struct ata_request *request)
 627 {
 628         struct ata_channel *ch;
 629
 630         ch = device_get_softc(request->parent);
 631         //request->flags |= ATA_R_DEBUG;
 632         ATA_DEBUG_RQ(request, "timeout");
 633
 634         /*
 635          * If we have an ATA_ACTIVE request running, we flag the request
 636          * ATA_R_TIMEOUT so ata_cam_end_transaction() will handle it correctly.
 637          * Also, NULL out the running request so we wont loose the race with
 638          * an eventual interrupt arriving late.
 639          */
 640         if (ch->state == ATA_ACTIVE) {
 641                 request->flags |= ATA_R_TIMEOUT;
 642                 if (ch->dma.unload)
 643                         ch->dma.unload(request);
 644                 ch->running = NULL;
 645                 ch->state = ATA_IDLE;
 646                 ata_cam_end_transaction(ch->dev, request);
 647         }
 648         mtx_unlock(&ch->state_mtx);
 649 }
 650
 651 static void
 652 ata_cam_begin_transaction(device_t dev, union ccb *ccb)
 653 {
 654         struct ata_channel *ch = device_get_softc(dev);
 655         struct ata_request *request;
 656
 657         if (!(request = ata_alloc_request())) {
 658                 device_printf(dev, "FAILURE - out of memory in start\n");
 659                 ccb->ccb_h.status = CAM_REQ_INVALID;
 660                 xpt_done(ccb);
 661                 return;
 662         }
 663         bzero(request, sizeof(*request));
 664
 665         /* setup request */
 666         request->dev = NULL;
 667         request->parent = dev;
 668         request->unit = ccb->ccb_h.target_id;
 669         if (ccb->ccb_h.func_code == XPT_ATA_IO) {
 670                 request->data = ccb->ataio.data_ptr;
 671                 request->bytecount = ccb->ataio.dxfer_len;
 672                 request->u.ata.command = ccb->ataio.cmd.command;
 673                 request->u.ata.feature = ((uint16_t)ccb->ataio.cmd.features_exp << 8) |
 674                                           (uint16_t)ccb->ataio.cmd.features;
 675                 request->u.ata.count = ((uint16_t)ccb->ataio.cmd.sector_count_exp << 8) |
 676                                         (uint16_t)ccb->ataio.cmd.sector_count;
 677                 if (ccb->ataio.cmd.flags & CAM_ATAIO_48BIT) {
 678                         request->flags |= ATA_R_48BIT;
 679                         request->u.ata.lba =
 680                                      ((uint64_t)ccb->ataio.cmd.lba_high_exp << 40) |
 681                                      ((uint64_t)ccb->ataio.cmd.lba_mid_exp << 32) |
 682                                      ((uint64_t)ccb->ataio.cmd.lba_low_exp << 24);
 683                 } else {
 684                         request->u.ata.lba =
 685                                      ((uint64_t)(ccb->ataio.cmd.device & 0x0f) << 24);
 686                 }
 687                 request->u.ata.lba |= ((uint64_t)ccb->ataio.cmd.lba_high << 16) |
 688                                       ((uint64_t)ccb->ataio.cmd.lba_mid << 8) |
 689                                        (uint64_t)ccb->ataio.cmd.lba_low;
 690                 if (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT)
 691                         request->flags |= ATA_R_NEEDRESULT;
 692                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE &&
 693                     ccb->ataio.cmd.flags & CAM_ATAIO_DMA)
 694                         request->flags |= ATA_R_DMA;
 695                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 696                         request->flags |= ATA_R_READ;
 697                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
 698                         request->flags |= ATA_R_WRITE;
 699                 if (ccb->ataio.cmd.command == ATA_READ_MUL ||
 700                     ccb->ataio.cmd.command == ATA_READ_MUL48 ||
 701                     ccb->ataio.cmd.command == ATA_WRITE_MUL ||
 702                     ccb->ataio.cmd.command == ATA_WRITE_MUL48) {
 703                         request->transfersize = min(request->bytecount,
 704                             ch->curr[ccb->ccb_h.target_id].bytecount);
 705                 } else
 706                         request->transfersize = min(request->bytecount, 512);
 707         } else {
 708                 request->data = ccb->csio.data_ptr;
 709                 request->bytecount = ccb->csio.dxfer_len;
 710                 bcopy((ccb->ccb_h.flags & CAM_CDB_POINTER) ?
 711                     ccb->csio.cdb_io.cdb_ptr : ccb->csio.cdb_io.cdb_bytes,
 712                     request->u.atapi.ccb, ccb->csio.cdb_len);
 713                 request->flags |= ATA_R_ATAPI;
 714                 if (ch->curr[ccb->ccb_h.target_id].atapi == 16)
 715                         request->flags |= ATA_R_ATAPI16;
 716                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE &&
 717                     ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA)
 718                         request->flags |= ATA_R_DMA;
 719                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
 720                         request->flags |= ATA_R_READ;
 721                 if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT)
 722                         request->flags |= ATA_R_WRITE;
 723                 request->transfersize = min(request->bytecount,
 724                     ch->curr[ccb->ccb_h.target_id].bytecount);
 725         }
 726         request->retries = 0;
 727         request->timeout = (ccb->ccb_h.timeout + 999) / 1000;
 728         callout_init_mtx(&request->callout, &ch->state_mtx, CALLOUT_RETURNUNLOCKED);
 729         request->ccb = ccb;
 730         request->flags |= ATA_R_DATA_IN_CCB;
 731
 732         ch->running = request;
 733         ch->state = ATA_ACTIVE;
 734         if (ch->hw.begin_transaction(request) == ATA_OP_FINISHED) {
 735             ch->running = NULL;
 736             ch->state = ATA_IDLE;
 737             ata_cam_end_transaction(dev, request);
 738             return;
 739         }
 740 }
 741
 742 static void
 743 ata_cam_request_sense(device_t dev, struct ata_request *request)
 744 {
 745         struct ata_channel *ch = device_get_softc(dev);
 746         union ccb *ccb = request->ccb;
 747
 748         ch->requestsense = 1;
 749
 750         bzero(request, sizeof(*request));
 751         request->dev = NULL;
 752         request->parent = dev;
 753         request->unit = ccb->ccb_h.target_id;
 754         request->data = (void *)&ccb->csio.sense_data;
 755         request->bytecount = ccb->csio.sense_len;
 756         request->u.atapi.ccb[0] = ATAPI_REQUEST_SENSE;
 757         request->u.atapi.ccb[4] = ccb->csio.sense_len;
 758         request->flags |= ATA_R_ATAPI;
 759         if (ch->curr[ccb->ccb_h.target_id].atapi == 16)
 760                 request->flags |= ATA_R_ATAPI16;
 761         if (ch->curr[ccb->ccb_h.target_id].mode >= ATA_DMA)
 762                 request->flags |= ATA_R_DMA;
 763         request->flags |= ATA_R_READ;
 764         request->transfersize = min(request->bytecount,
 765             ch->curr[ccb->ccb_h.target_id].bytecount);
 766         request->retries = 0;
 767         request->timeout = (ccb->ccb_h.timeout + 999) / 1000;
 768         callout_init_mtx(&request->callout, &ch->state_mtx, CALLOUT_RETURNUNLOCKED);
 769         request->ccb = ccb;
 770
 771         ch->running = request;
 772         ch->state = ATA_ACTIVE;
 773         if (ch->hw.begin_transaction(request) == ATA_OP_FINISHED) {
 774                 ch->running = NULL;
 775                 ch->state = ATA_IDLE;
 776                 ata_cam_end_transaction(dev, request);
 777                 return;
 778         }
 779 }
 780
 781 static void
 782 ata_cam_process_sense(device_t dev, struct ata_request *request)
 783 {
 784         struct ata_channel *ch = device_get_softc(dev);
 785         union ccb *ccb = request->ccb;
 786         int fatalerr = 0;
 787
 788         ch->requestsense = 0;
 789
 790         if (request->flags & ATA_R_TIMEOUT)
 791                 fatalerr = 1;
 792         if ((request->flags & ATA_R_TIMEOUT) == 0 &&
 793             (request->status & ATA_S_ERROR) == 0 &&
 794             request->result == 0) {
 795                 ccb->ccb_h.status |= CAM_AUTOSNS_VALID;
 796         } else {
 797                 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
 798                 ccb->ccb_h.status |= CAM_AUTOSENSE_FAIL;
 799         }
 800
 801         ata_free_request(request);
 802         xpt_done(ccb);
 803         /* Do error recovery if needed. */
 804         if (fatalerr)
 805                 ata_reinit(dev);
 806 }
 807
 808 static void
 809 ata_cam_end_transaction(device_t dev, struct ata_request *request)
 810 {
 811         struct ata_channel *ch = device_get_softc(dev);
 812         union ccb *ccb = request->ccb;
 813         int fatalerr = 0;
 814
 815         if (ch->requestsense) {
 816                 ata_cam_process_sense(dev, request);
 817                 return;
 818         }
 819
 820         ccb->ccb_h.status &= ~CAM_STATUS_MASK;
 821         if (request->flags & ATA_R_TIMEOUT) {
 822                 xpt_freeze_simq(ch->sim, 1);
 823                 ccb->ccb_h.status &= ~CAM_STATUS_MASK;
 824                 ccb->ccb_h.status |= CAM_CMD_TIMEOUT | CAM_RELEASE_SIMQ;
 825                 fatalerr = 1;
 826         } else if (request->status & ATA_S_ERROR) {
 827                 if (ccb->ccb_h.func_code == XPT_ATA_IO) {
 828                         ccb->ccb_h.status |= CAM_ATA_STATUS_ERROR;
 829                 } else {
 830                         ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
 831                         ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
 832                 }
 833         } else if (request->result == ERESTART)
 834                 ccb->ccb_h.status |= CAM_REQUEUE_REQ;
 835         else if (request->result != 0)
 836                 ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
 837         else
 838                 ccb->ccb_h.status |= CAM_REQ_CMP;
 839         if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP &&
 840             !(ccb->ccb_h.status & CAM_DEV_QFRZN)) {
 841                 xpt_freeze_devq(ccb->ccb_h.path, 1);
 842                 ccb->ccb_h.status |= CAM_DEV_QFRZN;
 843         }
 844         if (ccb->ccb_h.func_code == XPT_ATA_IO &&
 845             ((request->status & ATA_S_ERROR) ||
 846             (ccb->ataio.cmd.flags & CAM_ATAIO_NEEDRESULT))) {
 847                 struct ata_res *res = &ccb->ataio.res;
 848                 res->status = request->status;
 849                 res->error = request->error;
 850                 res->lba_low = request->u.ata.lba;
 851                 res->lba_mid = request->u.ata.lba >> 8;
 852                 res->lba_high = request->u.ata.lba >> 16;
 853                 res->device = request->u.ata.lba >> 24;
 854                 res->lba_low_exp = request->u.ata.lba >> 24;
 855                 res->lba_mid_exp = request->u.ata.lba >> 32;
 856                 res->lba_high_exp = request->u.ata.lba >> 40;
 857                 res->sector_count = request->u.ata.count;
 858                 res->sector_count_exp = request->u.ata.count >> 8;
 859         }
 860         if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
 861                 if (ccb->ccb_h.func_code == XPT_ATA_IO) {
 862                         ccb->ataio.resid =
 863                             ccb->ataio.dxfer_len - request->donecount;
 864                 } else {
 865                         ccb->csio.resid =
 866                             ccb->csio.dxfer_len - request->donecount;
 867                 }
 868         }
 869         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR &&
 870             (ccb->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0)
 871                 ata_cam_request_sense(dev, request);
 872         else {
 873                 ata_free_request(request);
 874                 xpt_done(ccb);
 875         }
 876         /* Do error recovery if needed. */
 877         if (fatalerr)
 878                 ata_reinit(dev);
 879 }
 880
 881 static int
 882 ata_check_ids(device_t dev, union ccb *ccb)
 883 {
 884         struct ata_channel *ch = device_get_softc(dev);
 885
 886         if (ccb->ccb_h.target_id > ((ch->flags & ATA_NO_SLAVE) ? 0 : 1)) {
 887                 ccb->ccb_h.status = CAM_TID_INVALID;
 888                 xpt_done(ccb);
 889                 return (-1);
 890         }
 891         if (ccb->ccb_h.target_lun != 0) {
 892                 ccb->ccb_h.status = CAM_LUN_INVALID;
 893                 xpt_done(ccb);
 894                 return (-1);
 895         }
 896         return (0);
 897 }
 898
 899 static void
 900 ataaction(struct cam_sim *sim, union ccb *ccb)
 901 {
 902         device_t dev, parent;
 903         struct ata_channel *ch;
 904
 905         CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("ataaction func_code=%x\n",
 906             ccb->ccb_h.func_code));
 907
 908         ch = (struct ata_channel *)cam_sim_softc(sim);
 909         dev = ch->dev;
 910         switch (ccb->ccb_h.func_code) {
 911         /* Common cases first */
 912         case XPT_ATA_IO:        /* Execute the requested I/O operation */
 913         case XPT_SCSI_IO:
 914                 if (ata_check_ids(dev, ccb))
 915                         return;
 916                 if ((ch->devices & ((ATA_ATA_MASTER | ATA_ATAPI_MASTER)
 917                     << ccb->ccb_h.target_id)) == 0) {
 918                         ccb->ccb_h.status = CAM_SEL_TIMEOUT;
 919                         break;
 920                 }
 921                 if (ch->running)
 922                         device_printf(dev, "already running!\n");
 923                 if (ccb->ccb_h.func_code == XPT_ATA_IO &&
 924                     (ccb->ataio.cmd.flags & CAM_ATAIO_CONTROL) &&
 925                     (ccb->ataio.cmd.control & ATA_A_RESET)) {
 926                         struct ata_res *res = &ccb->ataio.res;
 927
 928                         bzero(res, sizeof(*res));
 929                         if (ch->devices & (ATA_ATA_MASTER << ccb->ccb_h.target_id)) {
 930                                 res->lba_high = 0;
 931                                 res->lba_mid = 0;
 932                         } else {
 933                                 res->lba_high = 0xeb;
 934                                 res->lba_mid = 0x14;
 935                         }
 936                         ccb->ccb_h.status = CAM_REQ_CMP;
 937                         break;
 938                 }
 939                 ata_cam_begin_transaction(dev, ccb);
 940                 return;
 941         case XPT_EN_LUN:                /* Enable LUN as a target */
 942         case XPT_TARGET_IO:             /* Execute target I/O request */
 943         case XPT_ACCEPT_TARGET_IO:      /* Accept Host Target Mode CDB */
 944         case XPT_CONT_TARGET_IO:        /* Continue Host Target I/O Connection*/
 945         case XPT_ABORT:                 /* Abort the specified CCB */
 946                 /* XXX Implement */
 947                 ccb->ccb_h.status = CAM_REQ_INVALID;
 948                 break;
 949         case XPT_SET_TRAN_SETTINGS:
 950         {
 951                 struct  ccb_trans_settings *cts = &ccb->cts;
 952                 struct  ata_cam_device *d;
 953
 954                 if (ata_check_ids(dev, ccb))
 955                         return;
 956                 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
 957                         d = &ch->curr[ccb->ccb_h.target_id];
 958                 else
 959                         d = &ch->user[ccb->ccb_h.target_id];
 960                 if (ch->flags & ATA_SATA) {
 961                         if (cts->xport_specific.sata.valid & CTS_SATA_VALID_REVISION)
 962                                 d->revision = cts->xport_specific.sata.revision;
 963                         if (cts->xport_specific.sata.valid & CTS_SATA_VALID_MODE) {
 964                                 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
 965                                         d->mode = ATA_SETMODE(ch->dev,
 966                                             ccb->ccb_h.target_id,
 967                                             cts->xport_specific.sata.mode);
 968                                 } else
 969                                         d->mode = cts->xport_specific.sata.mode;
 970                         }
 971                         if (cts->xport_specific.sata.valid & CTS_SATA_VALID_BYTECOUNT)
 972                                 d->bytecount = min(8192, cts->xport_specific.sata.bytecount);
 973                         if (cts->xport_specific.sata.valid & CTS_SATA_VALID_ATAPI)
 974                                 d->atapi = cts->xport_specific.sata.atapi;
 975                         if (cts->xport_specific.sata.valid & CTS_SATA_VALID_CAPS)
 976                                 d->caps = cts->xport_specific.sata.caps;
 977                 } else {
 978                         if (cts->xport_specific.ata.valid & CTS_ATA_VALID_MODE) {
 979                                 if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
 980                                         d->mode = ATA_SETMODE(ch->dev,
 981                                             ccb->ccb_h.target_id,
 982                                             cts->xport_specific.ata.mode);
 983                                 } else
 984                                         d->mode = cts->xport_specific.ata.mode;
 985                         }
 986                         if (cts->xport_specific.ata.valid & CTS_ATA_VALID_BYTECOUNT)
 987                                 d->bytecount = cts->xport_specific.ata.bytecount;
 988                         if (cts->xport_specific.ata.valid & CTS_ATA_VALID_ATAPI)
 989                                 d->atapi = cts->xport_specific.ata.atapi;
 990                         if (cts->xport_specific.ata.valid & CTS_ATA_VALID_CAPS)
 991                                 d->caps = cts->xport_specific.ata.caps;
 992                 }
 993                 ccb->ccb_h.status = CAM_REQ_CMP;
 994                 break;
 995         }
 996         case XPT_GET_TRAN_SETTINGS:
 997         {
 998                 struct  ccb_trans_settings *cts = &ccb->cts;
 999                 struct  ata_cam_device *d;
1000
1001                 if (ata_check_ids(dev, ccb))
1002                         return;
1003                 if (cts->type == CTS_TYPE_CURRENT_SETTINGS)
1004                         d = &ch->curr[ccb->ccb_h.target_id];
1005                 else
1006                         d = &ch->user[ccb->ccb_h.target_id];
1007                 cts->protocol = PROTO_UNSPECIFIED;
1008                 cts->protocol_version = PROTO_VERSION_UNSPECIFIED;
1009                 if (ch->flags & ATA_SATA) {
1010                         cts->transport = XPORT_SATA;
1011                         cts->transport_version = XPORT_VERSION_UNSPECIFIED;
1012                         cts->xport_specific.sata.valid = 0;
1013                         cts->xport_specific.sata.mode = d->mode;
1014                         cts->xport_specific.sata.valid |= CTS_SATA_VALID_MODE;
1015                         cts->xport_specific.sata.bytecount = d->bytecount;
1016                         cts->xport_specific.sata.valid |= CTS_SATA_VALID_BYTECOUNT;
1017                         if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
1018                                 cts->xport_specific.sata.revision =
1019                                     ATA_GETREV(dev, ccb->ccb_h.target_id);
1020                                 if (cts->xport_specific.sata.revision != 0xff) {
1021                                         cts->xport_specific.sata.valid |=
1022                                             CTS_SATA_VALID_REVISION;
1023                                 }
1024                                 cts->xport_specific.sata.caps =
1025                                     d->caps & CTS_SATA_CAPS_D;
1026                                 if (ch->pm_level) {
1027                                         cts->xport_specific.sata.caps |=
1028                                             CTS_SATA_CAPS_H_PMREQ;
1029                                 }
1030                                 cts->xport_specific.sata.caps &=
1031                                     ch->user[ccb->ccb_h.target_id].caps;
1032                         } else {
1033                                 cts->xport_specific.sata.revision = d->revision;
1034                                 cts->xport_specific.sata.valid |= CTS_SATA_VALID_REVISION;
1035                                 cts->xport_specific.sata.caps = d->caps;
1036                         }
1037                         cts->xport_specific.sata.valid |= CTS_SATA_VALID_CAPS;
1038                         cts->xport_specific.sata.atapi = d->atapi;
1039                         cts->xport_specific.sata.valid |= CTS_SATA_VALID_ATAPI;
1040                 } else {
1041                         cts->transport = XPORT_ATA;
1042                         cts->transport_version = XPORT_VERSION_UNSPECIFIED;
1043                         cts->xport_specific.ata.valid = 0;
1044                         cts->xport_specific.ata.mode = d->mode;
1045                         cts->xport_specific.ata.valid |= CTS_ATA_VALID_MODE;
1046                         cts->xport_specific.ata.bytecount = d->bytecount;
1047                         cts->xport_specific.ata.valid |= CTS_ATA_VALID_BYTECOUNT;
1048                         if (cts->type == CTS_TYPE_CURRENT_SETTINGS) {
1049                                 cts->xport_specific.ata.caps =
1050                                     d->caps & CTS_ATA_CAPS_D;
1051                                 if (!(ch->flags & ATA_NO_48BIT_DMA))
1052                                         cts->xport_specific.ata.caps |=
1053                                             CTS_ATA_CAPS_H_DMA48;
1054                                 cts->xport_specific.ata.caps &=
1055                                     ch->user[ccb->ccb_h.target_id].caps;
1056                         } else
1057                                 cts->xport_specific.ata.caps = d->caps;
1058                         cts->xport_specific.ata.valid |= CTS_ATA_VALID_CAPS;
1059                         cts->xport_specific.ata.atapi = d->atapi;
1060                         cts->xport_specific.ata.valid |= CTS_ATA_VALID_ATAPI;
1061                 }
1062                 ccb->ccb_h.status = CAM_REQ_CMP;
1063                 break;
1064         }
1065         case XPT_RESET_BUS:             /* Reset the specified SCSI bus */
1066         case XPT_RESET_DEV:     /* Bus Device Reset the specified SCSI device */
1067                 ata_reinit(dev);
1068                 ccb->ccb_h.status = CAM_REQ_CMP;
1069                 break;
1070         case XPT_TERM_IO:               /* Terminate the I/O process */
1071                 /* XXX Implement */
1072                 ccb->ccb_h.status = CAM_REQ_INVALID;
1073                 break;
1074         case XPT_PATH_INQ:              /* Path routing inquiry */
1075         {
1076                 struct ccb_pathinq *cpi = &ccb->cpi;
1077
1078                 parent = device_get_parent(dev);
1079                 cpi->version_num = 1; /* XXX??? */
1080                 cpi->hba_inquiry = PI_SDTR_ABLE;
1081                 cpi->target_sprt = 0;
1082                 cpi->hba_misc = PIM_SEQSCAN;
1083                 cpi->hba_eng_cnt = 0;
1084                 if (ch->flags & ATA_NO_SLAVE)
1085                         cpi->max_target = 0;
1086                 else
1087                         cpi->max_target = 1;
1088                 cpi->max_lun = 0;
1089                 cpi->initiator_id = 0;
1090                 cpi->bus_id = cam_sim_bus(sim);
1091                 if (ch->flags & ATA_SATA)
1092                         cpi->base_transfer_speed = 150000;
1093                 else
1094                         cpi->base_transfer_speed = 3300;
1095                 strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
1096                 strncpy(cpi->hba_vid, "ATA", HBA_IDLEN);
1097                 strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
1098                 cpi->unit_number = cam_sim_unit(sim);
1099                 if (ch->flags & ATA_SATA)
1100                         cpi->transport = XPORT_SATA;
1101                 else
1102                         cpi->transport = XPORT_ATA;
1103                 cpi->transport_version = XPORT_VERSION_UNSPECIFIED;
1104                 cpi->protocol = PROTO_ATA;
1105                 cpi->protocol_version = PROTO_VERSION_UNSPECIFIED;
1106                 cpi->maxio = ch->dma.max_iosize ? ch->dma.max_iosize : DFLTPHYS;
1107                 if (device_get_devclass(device_get_parent(parent)) ==
1108                     devclass_find("pci")) {
1109                         cpi->hba_vendor = pci_get_vendor(parent);
1110                         cpi->hba_device = pci_get_device(parent);
1111                         cpi->hba_subvendor = pci_get_subvendor(parent);
1112                         cpi->hba_subdevice = pci_get_subdevice(parent);
1113                 }
1114                 cpi->ccb_h.status = CAM_REQ_CMP;
1115                 break;
1116         }
1117         default:
1118                 ccb->ccb_h.status = CAM_REQ_INVALID;
1119                 break;
1120         }
1121         xpt_done(ccb);
1122 }
1123
1124 static void
1125 atapoll(struct cam_sim *sim)
1126 {
1127         struct ata_channel *ch = (struct ata_channel *)cam_sim_softc(sim);
1128
1129         ata_interrupt_locked(ch);
1130 }
1131
1132 /*
1133  * module handeling
1134  */
1135 static int
1136 ata_module_event_handler(module_t mod, int what, void *arg)
1137 {
1138
1139     switch (what) {
1140     case MOD_LOAD:
1141         return 0;
1142
1143     case MOD_UNLOAD:
1144         return 0;
1145
1146     default:
1147         return EOPNOTSUPP;
1148     }
1149 }
1150
1151 static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL };
1152 DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND);
1153 MODULE_VERSION(ata, 1);
1154 MODULE_DEPEND(ata, cam, 1, 1, 1);
1155
1156 static void
1157 ata_init(void)
1158 {
1159     ata_request_zone = uma_zcreate("ata_request", sizeof(struct ata_request),
1160                                    NULL, NULL, NULL, NULL, 0, 0);
1161 }
1162 SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL);
1163
1164 static void
1165 ata_uninit(void)
1166 {
1167     uma_zdestroy(ata_request_zone);
1168 }
1169 SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL);