1 /*- 2 * Copyright (c) 1998 - 2008 S�ren 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 "opt_ata.h" 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/ata.h> 34 #include <sys/kernel.h> 35 #include <sys/module.h> 36 #include <sys/endian.h> 37 #include <sys/ctype.h> 38 #include <sys/conf.h> 39 #include <sys/bus.h> 40 #include <sys/bio.h> 41 #include <sys/malloc.h> 42 #include <sys/sysctl.h> 43 #include <sys/sema.h> 44 #include <sys/taskqueue.h> 45 #include <vm/uma.h> 46 #include <machine/stdarg.h> 47 #include <machine/resource.h> 48 #include <machine/bus.h> 49 #include <sys/rman.h> 50 #include <dev/ata/ata-all.h> 51 #include <ata_if.h> 52 53 /* device structure */ 54 static d_ioctl_t ata_ioctl; 55 static struct cdevsw ata_cdevsw = { 56 .d_version = D_VERSION, 57 .d_ioctl = ata_ioctl, 58 .d_name = "ata", 59 }; 60 61 /* prototypes */ 62 static void ata_boot_attach(void); 63 static device_t ata_add_child(device_t, struct ata_device *, int); 64 static void ata_conn_event(void *, int); 65 static void bswap(int8_t *, int); 66 static void btrim(int8_t *, int); 67 static void bpack(int8_t *, int8_t *, int); 68 69 /* global vars */ 70 MALLOC_DEFINE(M_ATA, "ata_generic", "ATA driver generic layer"); 71 int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data) = NULL; 72 struct intr_config_hook *ata_delayed_attach = NULL; 73 devclass_t ata_devclass; 74 uma_zone_t ata_request_zone; 75 uma_zone_t ata_composite_zone; 76 int ata_wc = 1; 77 int ata_setmax = 0; 78 int ata_dma_check_80pin = 1; 79 80 /* local vars */ 81 static int ata_dma = 1; 82 static int atapi_dma = 1; 83 84 /* sysctl vars */ 85 SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters"); 86 TUNABLE_INT("hw.ata.ata_dma", &ata_dma); 87 SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RDTUN, &ata_dma, 0, 88 "ATA disk DMA mode control"); 89 TUNABLE_INT("hw.ata.ata_dma_check_80pin", &ata_dma_check_80pin); 90 SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma_check_80pin, 91 CTLFLAG_RDTUN, &ata_dma_check_80pin, 1, 92 "Check for 80pin cable before setting ATA DMA mode"); 93 TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma); 94 SYSCTL_INT(_hw_ata, OID_AUTO, atapi_dma, CTLFLAG_RDTUN, &atapi_dma, 0, 95 "ATAPI device DMA mode control"); 96 TUNABLE_INT("hw.ata.wc", &ata_wc); 97 SYSCTL_INT(_hw_ata, OID_AUTO, wc, CTLFLAG_RDTUN, &ata_wc, 0, 98 "ATA disk write caching"); 99 TUNABLE_INT("hw.ata.setmax", &ata_setmax); 100 SYSCTL_INT(_hw_ata, OID_AUTO, setmax, CTLFLAG_RDTUN, &ata_setmax, 0, 101 "ATA disk set max native address"); 102 103 /* 104 * newbus device interface related functions 105 */ 106 int 107 ata_probe(device_t dev) 108 { 109 return 0; 110 } 111 112 int 113 ata_attach(device_t dev) 114 { 115 struct ata_channel *ch = device_get_softc(dev); 116 int error, rid; 117 118 /* check that we have a virgin channel to attach */ 119 if (ch->r_irq) 120 return EEXIST; 121 122 /* initialize the softc basics */ 123 ch->dev = dev; 124 ch->state = ATA_IDLE; 125 bzero(&ch->state_mtx, sizeof(struct mtx)); 126 mtx_init(&ch->state_mtx, "ATA state lock", NULL, MTX_DEF); 127 bzero(&ch->queue_mtx, sizeof(struct mtx)); 128 mtx_init(&ch->queue_mtx, "ATA queue lock", NULL, MTX_DEF); 129 TAILQ_INIT(&ch->ata_queue); 130 TASK_INIT(&ch->conntask, 0, ata_conn_event, dev); 131 132 /* reset the controller HW, the channel and device(s) */ 133 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit) 134 pause("ataatch", 1); 135 ATA_RESET(dev); 136 ATA_LOCKING(dev, ATA_LF_UNLOCK); 137 138 /* allocate DMA resources if DMA HW present*/ 139 if (ch->dma.alloc) 140 ch->dma.alloc(dev); 141 142 /* setup interrupt delivery */ 143 rid = ATA_IRQ_RID; 144 ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 145 RF_SHAREABLE | RF_ACTIVE); 146 if (!ch->r_irq) { 147 device_printf(dev, "unable to allocate interrupt\n"); 148 return ENXIO; 149 } 150 if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, NULL, 151 ata_interrupt, ch, &ch->ih))) { 152 device_printf(dev, "unable to setup interrupt\n"); 153 return error; 154 } 155 156 /* probe and attach devices on this channel unless we are in early boot */ 157 if (!ata_delayed_attach) 158 ata_identify(dev); 159 return 0; 160 } 161 162 int 163 ata_detach(device_t dev) 164 { 165 struct ata_channel *ch = device_get_softc(dev); 166 device_t *children; 167 int nchildren, i; 168 169 /* check that we have a valid channel to detach */ 170 if (!ch->r_irq) 171 return ENXIO; 172 173 /* grap the channel lock so no new requests gets launched */ 174 mtx_lock(&ch->state_mtx); 175 ch->state |= ATA_STALL_QUEUE; 176 mtx_unlock(&ch->state_mtx); 177 178 /* detach & delete all children */ 179 if (!device_get_children(dev, &children, &nchildren)) { 180 for (i = 0; i < nchildren; i++) 181 if (children[i]) 182 device_delete_child(dev, children[i]); 183 free(children, M_TEMP); 184 } 185 taskqueue_drain(taskqueue_thread, &ch->conntask); 186 187 /* release resources */ 188 bus_teardown_intr(dev, ch->r_irq, ch->ih); 189 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 190 ch->r_irq = NULL; 191 192 /* free DMA resources if DMA HW present*/ 193 if (ch->dma.free) 194 ch->dma.free(dev); 195 196 mtx_destroy(&ch->state_mtx); 197 mtx_destroy(&ch->queue_mtx); 198 return 0; 199 } 200 201 static void 202 ata_conn_event(void *context, int dummy) 203 { 204 device_t dev = (device_t)context; 205 206 newbus_xlock(); 207 ata_reinit(dev); 208 newbus_xunlock(); 209 } 210 211 int 212 ata_reinit(device_t dev) 213 { 214 struct ata_channel *ch = device_get_softc(dev); 215 struct ata_request *request; 216 device_t *children; 217 int nchildren, i; 218 219 /* check that we have a valid channel to reinit */ 220 if (!ch || !ch->r_irq) 221 return ENXIO; 222 223 if (bootverbose) 224 device_printf(dev, "reiniting channel ..\n"); 225 226 /* poll for locking the channel */ 227 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit) 228 pause("atarini", 1); 229 230 /* catch eventual request in ch->running */ 231 mtx_lock(&ch->state_mtx); 232 if (ch->state & ATA_STALL_QUEUE) { 233 /* Recursive reinits and reinits during detach prohobited. */ 234 mtx_unlock(&ch->state_mtx); 235 return (ENXIO); 236 } 237 if ((request = ch->running)) 238 callout_stop(&request->callout); 239 ch->running = NULL; 240 241 /* unconditionally grap the channel lock */ 242 ch->state |= ATA_STALL_QUEUE; 243 mtx_unlock(&ch->state_mtx); 244 245 /* reset the controller HW, the channel and device(s) */ 246 ATA_RESET(dev); 247 248 /* reinit the children and delete any that fails */ 249 if (!device_get_children(dev, &children, &nchildren)) { 250 for (i = 0; i < nchildren; i++) { 251 /* did any children go missing ? */ 252 if (children[i] && device_is_attached(children[i]) && 253 ATA_REINIT(children[i])) { 254 /* 255 * if we had a running request and its device matches 256 * this child we need to inform the request that the 257 * device is gone. 258 */ 259 if (request && request->dev == children[i]) { 260 request->result = ENXIO; 261 device_printf(request->dev, "FAILURE - device detached\n"); 262 263 /* if not timeout finish request here */ 264 if (!(request->flags & ATA_R_TIMEOUT)) 265 ata_finish(request); 266 request = NULL; 267 } 268 device_delete_child(dev, children[i]); 269 } 270 } 271 free(children, M_TEMP); 272 } 273 274 /* if we still have a good request put it on the queue again */ 275 if (request && !(request->flags & ATA_R_TIMEOUT)) { 276 device_printf(request->dev, 277 "WARNING - %s requeued due to channel reset", 278 ata_cmd2str(request)); 279 if (!(request->flags & (ATA_R_ATAPI | ATA_R_CONTROL))) 280 printf(" LBA=%ju", request->u.ata.lba); 281 printf("\n"); 282 request->flags |= ATA_R_REQUEUE; 283 ata_queue_request(request); 284 } 285 286 /* we're done release the channel for new work */ 287 mtx_lock(&ch->state_mtx); 288 ch->state = ATA_IDLE; 289 mtx_unlock(&ch->state_mtx); 290 ATA_LOCKING(dev, ATA_LF_UNLOCK); 291 292 /* Add new children. */ 293 /* ata_identify(dev); */ 294 295 if (bootverbose) 296 device_printf(dev, "reinit done ..\n"); 297 298 /* kick off requests on the queue */ 299 ata_start(dev); 300 return 0; 301 } 302 303 int 304 ata_suspend(device_t dev) 305 { 306 struct ata_channel *ch; 307 308 /* check for valid device */ 309 if (!dev || !(ch = device_get_softc(dev))) 310 return ENXIO; 311 312 /* wait for the channel to be IDLE or detached before suspending */ 313 while (ch->r_irq) { 314 mtx_lock(&ch->state_mtx); 315 if (ch->state == ATA_IDLE) { 316 ch->state = ATA_ACTIVE; 317 mtx_unlock(&ch->state_mtx); 318 break; 319 } 320 mtx_unlock(&ch->state_mtx); 321 tsleep(ch, PRIBIO, "atasusp", hz/10); 322 } 323 ATA_LOCKING(dev, ATA_LF_UNLOCK); 324 return 0; 325 } 326 327 int 328 ata_resume(device_t dev) 329 { 330 int error; 331 332 /* check for valid device */ 333 if (!dev || !device_get_softc(dev)) 334 return ENXIO; 335 336 /* reinit the devices, we dont know what mode/state they are in */ 337 error = ata_reinit(dev); 338 339 /* kick off requests on the queue */ 340 ata_start(dev); 341 return error; 342 } 343 344 void 345 ata_interrupt(void *data) 346 { 347 struct ata_channel *ch = (struct ata_channel *)data; 348 struct ata_request *request; 349 350 mtx_lock(&ch->state_mtx); 351 do { 352 /* ignore interrupt if its not for us */ 353 if (ch->hw.status && !ch->hw.status(ch->dev)) 354 break; 355 356 /* do we have a running request */ 357 if (!(request = ch->running)) 358 break; 359 360 ATA_DEBUG_RQ(request, "interrupt"); 361 362 /* safetycheck for the right state */ 363 if (ch->state == ATA_IDLE) { 364 device_printf(request->dev, "interrupt on idle channel ignored\n"); 365 break; 366 } 367 368 /* 369 * we have the HW locks, so end the transaction for this request 370 * if it finishes immediately otherwise wait for next interrupt 371 */ 372 if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) { 373 ch->running = NULL; 374 if (ch->state == ATA_ACTIVE) 375 ch->state = ATA_IDLE; 376 mtx_unlock(&ch->state_mtx); 377 ATA_LOCKING(ch->dev, ATA_LF_UNLOCK); 378 ata_finish(request); 379 return; 380 } 381 } while (0); 382 mtx_unlock(&ch->state_mtx); 383 } 384 385 /* 386 * device related interfaces 387 */ 388 static int 389 ata_ioctl(struct cdev *dev, u_long cmd, caddr_t data, 390 int32_t flag, struct thread *td) 391 { 392 device_t device, *children; 393 struct ata_ioc_devices *devices = (struct ata_ioc_devices *)data; 394 int *value = (int *)data; 395 int i, nchildren, error = ENOTTY; 396 397 newbus_xlock(); 398 switch (cmd) { 399 case IOCATAGMAXCHANNEL: 400 /* In case we have channel 0..n this will return n+1. */ 401 *value = devclass_get_maxunit(ata_devclass); 402 error = 0; 403 break; 404 405 case IOCATAREINIT: 406 if (*value >= devclass_get_maxunit(ata_devclass) || 407 !(device = devclass_get_device(ata_devclass, *value)) || 408 !device_is_attached(device)) { 409 newbus_xunlock(); 410 return ENXIO; 411 } 412 error = ata_reinit(device); 413 break; 414 415 case IOCATAATTACH: 416 if (*value >= devclass_get_maxunit(ata_devclass) || 417 !(device = devclass_get_device(ata_devclass, *value)) || 418 !device_is_attached(device)) { 419 newbus_xunlock(); 420 return ENXIO; 421 } 422 error = DEVICE_ATTACH(device); 423 break; 424 425 case IOCATADETACH: 426 if (*value >= devclass_get_maxunit(ata_devclass) || 427 !(device = devclass_get_device(ata_devclass, *value)) || 428 !device_is_attached(device)) { 429 newbus_xunlock(); 430 return ENXIO; 431 } 432 error = DEVICE_DETACH(device); 433 break; 434 435 case IOCATADEVICES: 436 if (devices->channel >= devclass_get_maxunit(ata_devclass) || 437 !(device = devclass_get_device(ata_devclass, devices->channel)) || 438 !device_is_attached(device)) { 439 newbus_xunlock(); 440 return ENXIO; 441 } 442 bzero(devices->name[0], 32); 443 bzero(&devices->params[0], sizeof(struct ata_params)); 444 bzero(devices->name[1], 32); 445 bzero(&devices->params[1], sizeof(struct ata_params)); 446 if (!device_get_children(device, &children, &nchildren)) { 447 for (i = 0; i < nchildren; i++) { 448 if (children[i] && device_is_attached(children[i])) { 449 struct ata_device *atadev = device_get_softc(children[i]); 450 451 if (atadev->unit == ATA_MASTER) { /* XXX SOS PM */ 452 strncpy(devices->name[0], 453 device_get_nameunit(children[i]), 32); 454 bcopy(&atadev->param, &devices->params[0], 455 sizeof(struct ata_params)); 456 } 457 if (atadev->unit == ATA_SLAVE) { /* XXX SOS PM */ 458 strncpy(devices->name[1], 459 device_get_nameunit(children[i]), 32); 460 bcopy(&atadev->param, &devices->params[1], 461 sizeof(struct ata_params)); 462 } 463 } 464 } 465 free(children, M_TEMP); 466 error = 0; 467 } 468 else 469 error = ENODEV; 470 break; 471 472 default: 473 if (ata_raid_ioctl_func) 474 error = ata_raid_ioctl_func(cmd, data); 475 } 476 newbus_xunlock(); 477 return error; 478 } 479 480 int 481 ata_device_ioctl(device_t dev, u_long cmd, caddr_t data) 482 { 483 struct ata_device *atadev = device_get_softc(dev); 484 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 485 struct ata_ioc_request *ioc_request = (struct ata_ioc_request *)data; 486 struct ata_params *params = (struct ata_params *)data; 487 int *mode = (int *)data; 488 struct ata_request *request; 489 caddr_t buf; 490 int error; 491 492 switch (cmd) { 493 case IOCATAREQUEST: 494 if (ioc_request->count > 495 (ch->dma.max_iosize ? ch->dma.max_iosize : DFLTPHYS)) { 496 return (EFBIG); 497 } 498 if (!(buf = malloc(ioc_request->count, M_ATA, M_NOWAIT))) { 499 return ENOMEM; 500 } 501 if (!(request = ata_alloc_request())) { 502 free(buf, M_ATA); 503 return ENOMEM; 504 } 505 request->dev = atadev->dev; 506 if (ioc_request->flags & ATA_CMD_WRITE) { 507 error = copyin(ioc_request->data, buf, ioc_request->count); 508 if (error) { 509 free(buf, M_ATA); 510 ata_free_request(request); 511 return error; 512 } 513 } 514 if (ioc_request->flags & ATA_CMD_ATAPI) { 515 request->flags = ATA_R_ATAPI; 516 bcopy(ioc_request->u.atapi.ccb, request->u.atapi.ccb, 16); 517 } 518 else { 519 request->u.ata.command = ioc_request->u.ata.command; 520 request->u.ata.feature = ioc_request->u.ata.feature; 521 request->u.ata.lba = ioc_request->u.ata.lba; 522 request->u.ata.count = ioc_request->u.ata.count; 523 } 524 request->timeout = ioc_request->timeout; 525 request->data = buf; 526 request->bytecount = ioc_request->count; 527 request->transfersize = request->bytecount; 528 if (ioc_request->flags & ATA_CMD_CONTROL) 529 request->flags |= ATA_R_CONTROL; 530 if (ioc_request->flags & ATA_CMD_READ) 531 request->flags |= ATA_R_READ; 532 if (ioc_request->flags & ATA_CMD_WRITE) 533 request->flags |= ATA_R_WRITE; 534 ata_queue_request(request); 535 if (request->flags & ATA_R_ATAPI) { 536 bcopy(&request->u.atapi.sense, &ioc_request->u.atapi.sense, 537 sizeof(struct atapi_sense)); 538 } 539 else { 540 ioc_request->u.ata.command = request->u.ata.command; 541 ioc_request->u.ata.feature = request->u.ata.feature; 542 ioc_request->u.ata.lba = request->u.ata.lba; 543 ioc_request->u.ata.count = request->u.ata.count; 544 } 545 ioc_request->error = request->result; 546 if (ioc_request->flags & ATA_CMD_READ) 547 error = copyout(buf, ioc_request->data, ioc_request->count); 548 else 549 error = 0; 550 free(buf, M_ATA); 551 ata_free_request(request); 552 return error; 553 554 case IOCATAGPARM: 555 ata_getparam(atadev, 0); 556 bcopy(&atadev->param, params, sizeof(struct ata_params)); 557 return 0; 558 559 case IOCATASMODE: 560 atadev->mode = *mode; 561 ATA_SETMODE(device_get_parent(dev), dev); 562 return 0; 563 564 case IOCATAGMODE: 565 *mode = atadev->mode; 566 return 0; 567 case IOCATASSPINDOWN: 568 atadev->spindown = *mode; 569 return 0; 570 case IOCATAGSPINDOWN: 571 *mode = atadev->spindown; 572 return 0; 573 default: 574 return ENOTTY; 575 } 576 } 577 578 static void 579 ata_boot_attach(void) 580 { 581 struct ata_channel *ch; 582 int ctlr; 583 584 newbus_xlock(); 585 586 /* kick of probe and attach on all channels */ 587 for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) { 588 if ((ch = devclass_get_softc(ata_devclass, ctlr))) { 589 ata_identify(ch->dev); 590 } 591 } 592 593 /* release the hook that got us here, we are only needed once during boot */ 594 if (ata_delayed_attach) { 595 config_intrhook_disestablish(ata_delayed_attach); 596 free(ata_delayed_attach, M_TEMP); 597 ata_delayed_attach = NULL; 598 } 599 newbus_xunlock(); 600 } 601 602 603 /* 604 * misc support functions 605 */ 606 static device_t 607 ata_add_child(device_t parent, struct ata_device *atadev, int unit) 608 { 609 device_t child; 610 611 if ((child = device_add_child(parent, NULL, unit))) { 612 device_set_softc(child, atadev); 613 device_quiet(child); 614 atadev->dev = child; 615 atadev->max_iosize = DEV_BSIZE; 616 atadev->mode = ATA_PIO_MAX; 617 } 618 return child; 619 } 620 621 int 622 ata_getparam(struct ata_device *atadev, int init) 623 { 624 struct ata_channel *ch = device_get_softc(device_get_parent(atadev->dev)); 625 struct ata_request *request; 626 u_int8_t command = 0; 627 int error = ENOMEM, retries = 2; 628 629 if (ch->devices & (ATA_ATA_MASTER << atadev->unit)) 630 command = ATA_ATA_IDENTIFY; 631 if (ch->devices & (ATA_ATAPI_MASTER << atadev->unit)) 632 command = ATA_ATAPI_IDENTIFY; 633 if (!command) 634 return ENXIO; 635 636 while (retries-- > 0 && error) { 637 if (!(request = ata_alloc_request())) 638 break; 639 request->dev = atadev->dev; 640 request->timeout = 1; 641 request->retries = 0; 642 request->u.ata.command = command; 643 request->flags = (ATA_R_READ|ATA_R_AT_HEAD|ATA_R_DIRECT); 644 if (!bootverbose) 645 request->flags |= ATA_R_QUIET; 646 request->data = (void *)&atadev->param; 647 request->bytecount = sizeof(struct ata_params); 648 request->donecount = 0; 649 request->transfersize = DEV_BSIZE; 650 ata_queue_request(request); 651 error = request->result; 652 ata_free_request(request); 653 } 654 655 if (!error && (isprint(atadev->param.model[0]) || 656 isprint(atadev->param.model[1]))) { 657 struct ata_params *atacap = &atadev->param; 658 int16_t *ptr; 659 660 for (ptr = (int16_t *)atacap; 661 ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) { 662 *ptr = le16toh(*ptr); 663 } 664 if (!(!strncmp(atacap->model, "FX", 2) || 665 !strncmp(atacap->model, "NEC", 3) || 666 !strncmp(atacap->model, "Pioneer", 7) || 667 !strncmp(atacap->model, "SHARP", 5))) { 668 bswap(atacap->model, sizeof(atacap->model)); 669 bswap(atacap->revision, sizeof(atacap->revision)); 670 bswap(atacap->serial, sizeof(atacap->serial)); 671 } 672 btrim(atacap->model, sizeof(atacap->model)); 673 bpack(atacap->model, atacap->model, sizeof(atacap->model)); 674 btrim(atacap->revision, sizeof(atacap->revision)); 675 bpack(atacap->revision, atacap->revision, sizeof(atacap->revision)); 676 btrim(atacap->serial, sizeof(atacap->serial)); 677 bpack(atacap->serial, atacap->serial, sizeof(atacap->serial)); 678 679 if (bootverbose) 680 printf("ata%d-%s: pio=%s wdma=%s udma=%s cable=%s wire\n", 681 device_get_unit(ch->dev), 682 ata_unit2str(atadev), 683 ata_mode2str(ata_pmode(atacap)), 684 ata_mode2str(ata_wmode(atacap)), 685 ata_mode2str(ata_umode(atacap)), 686 (atacap->hwres & ATA_CABLE_ID) ? "80":"40"); 687 688 if (init) { 689 char buffer[64]; 690 691 sprintf(buffer, "%.40s/%.8s", atacap->model, atacap->revision); 692 device_set_desc_copy(atadev->dev, buffer); 693 if ((atadev->param.config & ATA_PROTO_ATAPI) && 694 (atadev->param.config != ATA_CFA_MAGIC1) && 695 (atadev->param.config != ATA_CFA_MAGIC2)) { 696 if (atapi_dma && 697 (atadev->param.config & ATA_DRQ_MASK) != ATA_DRQ_INTR && 698 ata_umode(&atadev->param) >= ATA_UDMA2) 699 atadev->mode = ATA_DMA_MAX; 700 } 701 else { 702 if (ata_dma && 703 (ata_umode(&atadev->param) > 0 || 704 ata_wmode(&atadev->param) > 0)) 705 atadev->mode = ATA_DMA_MAX; 706 } 707 } 708 } 709 else { 710 if (!error) 711 error = ENXIO; 712 } 713 return error; 714 } 715 716 int 717 ata_identify(device_t dev) 718 { 719 struct ata_channel *ch = device_get_softc(dev); 720 struct ata_device *atadev; 721 device_t *children; 722 device_t child, master = NULL; 723 int nchildren, i, n = ch->devices; 724 725 if (bootverbose) 726 device_printf(dev, "Identifying devices: %08x\n", ch->devices); 727 728 /* Skip existing devices. */ 729 if (!device_get_children(dev, &children, &nchildren)) { 730 for (i = 0; i < nchildren; i++) { 731 if (children[i] && (atadev = device_get_softc(children[i]))) 732 n &= ~((ATA_ATA_MASTER | ATA_ATAPI_MASTER) << atadev->unit); 733 } 734 free(children, M_TEMP); 735 } 736 /* Create new devices. */ 737 if (bootverbose) 738 device_printf(dev, "New devices: %08x\n", n); 739 if (n == 0) 740 return (0); 741 for (i = 0; i < ATA_PM; ++i) { 742 if (n & (((ATA_ATA_MASTER | ATA_ATAPI_MASTER) << i))) { 743 int unit = -1; 744 745 if (!(atadev = malloc(sizeof(struct ata_device), 746 M_ATA, M_NOWAIT | M_ZERO))) { 747 device_printf(dev, "out of memory\n"); 748 return ENOMEM; 749 } 750 atadev->unit = i; 751 #ifdef ATA_STATIC_ID 752 if (n & (ATA_ATA_MASTER << i)) 753 unit = (device_get_unit(dev) << 1) + i; 754 #endif 755 if ((child = ata_add_child(dev, atadev, unit))) { 756 /* 757 * PATA slave should be identified first, to allow 758 * device cable detection on master to work properly. 759 */ 760 if (i == 0 && (n & ATA_PORTMULTIPLIER) == 0 && 761 (n & ((ATA_ATA_MASTER | ATA_ATAPI_MASTER) << 1)) != 0) { 762 master = child; 763 continue; 764 } 765 if (ata_getparam(atadev, 1)) { 766 device_delete_child(dev, child); 767 free(atadev, M_ATA); 768 } 769 } 770 else 771 free(atadev, M_ATA); 772 } 773 } 774 if (master) { 775 atadev = device_get_softc(master); 776 if (ata_getparam(atadev, 1)) { 777 device_delete_child(dev, master); 778 free(atadev, M_ATA); 779 } 780 } 781 bus_generic_probe(dev); 782 bus_generic_attach(dev); 783 return 0; 784 } 785 786 void 787 ata_default_registers(device_t dev) 788 { 789 struct ata_channel *ch = device_get_softc(dev); 790 791 /* fill in the defaults from whats setup already */ 792 ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res; 793 ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset; 794 ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res; 795 ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset; 796 ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res; 797 ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset; 798 ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res; 799 ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset; 800 } 801 802 void 803 ata_modify_if_48bit(struct ata_request *request) 804 { 805 struct ata_channel *ch = device_get_softc(device_get_parent(request->dev)); 806 struct ata_device *atadev = device_get_softc(request->dev); 807 808 atadev->flags &= ~ATA_D_48BIT_ACTIVE; 809 810 if (((request->u.ata.lba + request->u.ata.count) >= ATA_MAX_28BIT_LBA || 811 request->u.ata.count > 256) && 812 atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) { 813 814 /* translate command into 48bit version */ 815 switch (request->u.ata.command) { 816 case ATA_READ: 817 request->u.ata.command = ATA_READ48; 818 break; 819 case ATA_READ_MUL: 820 request->u.ata.command = ATA_READ_MUL48; 821 break; 822 case ATA_READ_DMA: 823 if (ch->flags & ATA_NO_48BIT_DMA) { 824 if (request->transfersize > DEV_BSIZE) 825 request->u.ata.command = ATA_READ_MUL48; 826 else 827 request->u.ata.command = ATA_READ48; 828 request->flags &= ~ATA_R_DMA; 829 } 830 else 831 request->u.ata.command = ATA_READ_DMA48; 832 break; 833 case ATA_READ_DMA_QUEUED: 834 if (ch->flags & ATA_NO_48BIT_DMA) { 835 if (request->transfersize > DEV_BSIZE) 836 request->u.ata.command = ATA_READ_MUL48; 837 else 838 request->u.ata.command = ATA_READ48; 839 request->flags &= ~ATA_R_DMA; 840 } 841 else 842 request->u.ata.command = ATA_READ_DMA_QUEUED48; 843 break; 844 case ATA_WRITE: 845 request->u.ata.command = ATA_WRITE48; 846 break; 847 case ATA_WRITE_MUL: 848 request->u.ata.command = ATA_WRITE_MUL48; 849 break; 850 case ATA_WRITE_DMA: 851 if (ch->flags & ATA_NO_48BIT_DMA) { 852 if (request->transfersize > DEV_BSIZE) 853 request->u.ata.command = ATA_WRITE_MUL48; 854 else 855 request->u.ata.command = ATA_WRITE48; 856 request->flags &= ~ATA_R_DMA; 857 } 858 else 859 request->u.ata.command = ATA_WRITE_DMA48; 860 break; 861 case ATA_WRITE_DMA_QUEUED: 862 if (ch->flags & ATA_NO_48BIT_DMA) { 863 if (request->transfersize > DEV_BSIZE) 864 request->u.ata.command = ATA_WRITE_MUL48; 865 else 866 request->u.ata.command = ATA_WRITE48; 867 request->u.ata.command = ATA_WRITE48; 868 request->flags &= ~ATA_R_DMA; 869 } 870 else 871 request->u.ata.command = ATA_WRITE_DMA_QUEUED48; 872 break; 873 case ATA_FLUSHCACHE: 874 request->u.ata.command = ATA_FLUSHCACHE48; 875 break; 876 case ATA_SET_MAX_ADDRESS: 877 request->u.ata.command = ATA_SET_MAX_ADDRESS48; 878 break; 879 default: 880 return; 881 } 882 atadev->flags |= ATA_D_48BIT_ACTIVE; 883 } 884 else if (atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) { 885 886 /* translate command into 48bit version */ 887 switch (request->u.ata.command) { 888 case ATA_FLUSHCACHE: 889 request->u.ata.command = ATA_FLUSHCACHE48; 890 break; 891 case ATA_READ_NATIVE_MAX_ADDRESS: 892 request->u.ata.command = ATA_READ_NATIVE_MAX_ADDRESS48; 893 break; 894 case ATA_SET_MAX_ADDRESS: 895 request->u.ata.command = ATA_SET_MAX_ADDRESS48; 896 break; 897 default: 898 return; 899 } 900 atadev->flags |= ATA_D_48BIT_ACTIVE; 901 } 902 } 903 904 void 905 ata_udelay(int interval) 906 { 907 /* for now just use DELAY, the timer/sleep subsytems are not there yet */ 908 if (1 || interval < (1000000/hz) || ata_delayed_attach) 909 DELAY(interval); 910 else 911 pause("ataslp", interval/(1000000/hz)); 912 } 913 914 char * 915 ata_unit2str(struct ata_device *atadev) 916 { 917 struct ata_channel *ch = device_get_softc(device_get_parent(atadev->dev)); 918 static char str[8]; 919 920 if (ch->devices & ATA_PORTMULTIPLIER) 921 sprintf(str, "port%d", atadev->unit); 922 else 923 sprintf(str, "%s", atadev->unit == ATA_MASTER ? "master" : "slave"); 924 return str; 925 } 926 927 char * 928 ata_mode2str(int mode) 929 { 930 switch (mode) { 931 case -1: return "UNSUPPORTED"; 932 case ATA_PIO0: return "PIO0"; 933 case ATA_PIO1: return "PIO1"; 934 case ATA_PIO2: return "PIO2"; 935 case ATA_PIO3: return "PIO3"; 936 case ATA_PIO4: return "PIO4"; 937 case ATA_WDMA0: return "WDMA0"; 938 case ATA_WDMA1: return "WDMA1"; 939 case ATA_WDMA2: return "WDMA2"; 940 case ATA_UDMA0: return "UDMA16"; 941 case ATA_UDMA1: return "UDMA25"; 942 case ATA_UDMA2: return "UDMA33"; 943 case ATA_UDMA3: return "UDMA40"; 944 case ATA_UDMA4: return "UDMA66"; 945 case ATA_UDMA5: return "UDMA100"; 946 case ATA_UDMA6: return "UDMA133"; 947 case ATA_SA150: return "SATA150"; 948 case ATA_SA300: return "SATA300"; 949 case ATA_USB: return "USB"; 950 case ATA_USB1: return "USB1"; 951 case ATA_USB2: return "USB2"; 952 default: 953 if (mode & ATA_DMA_MASK) 954 return "BIOSDMA"; 955 else 956 return "BIOSPIO"; 957 } 958 } 959 960 int 961 ata_atapi(device_t dev) 962 { 963 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 964 struct ata_device *atadev = device_get_softc(dev); 965 966 return (ch->devices & (ATA_ATAPI_MASTER << atadev->unit)); 967 } 968 969 int 970 ata_pmode(struct ata_params *ap) 971 { 972 if (ap->atavalid & ATA_FLAG_64_70) { 973 if (ap->apiomodes & 0x02) 974 return ATA_PIO4; 975 if (ap->apiomodes & 0x01) 976 return ATA_PIO3; 977 } 978 if (ap->mwdmamodes & 0x04) 979 return ATA_PIO4; 980 if (ap->mwdmamodes & 0x02) 981 return ATA_PIO3; 982 if (ap->mwdmamodes & 0x01) 983 return ATA_PIO2; 984 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200) 985 return ATA_PIO2; 986 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100) 987 return ATA_PIO1; 988 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000) 989 return ATA_PIO0; 990 return ATA_PIO0; 991 } 992 993 int 994 ata_wmode(struct ata_params *ap) 995 { 996 if (ap->mwdmamodes & 0x04) 997 return ATA_WDMA2; 998 if (ap->mwdmamodes & 0x02) 999 return ATA_WDMA1; 1000 if (ap->mwdmamodes & 0x01) 1001 return ATA_WDMA0; 1002 return -1; 1003 } 1004 1005 int 1006 ata_umode(struct ata_params *ap) 1007 { 1008 if (ap->atavalid & ATA_FLAG_88) { 1009 if (ap->udmamodes & 0x40) 1010 return ATA_UDMA6; 1011 if (ap->udmamodes & 0x20) 1012 return ATA_UDMA5; 1013 if (ap->udmamodes & 0x10) 1014 return ATA_UDMA4; 1015 if (ap->udmamodes & 0x08) 1016 return ATA_UDMA3; 1017 if (ap->udmamodes & 0x04) 1018 return ATA_UDMA2; 1019 if (ap->udmamodes & 0x02) 1020 return ATA_UDMA1; 1021 if (ap->udmamodes & 0x01) 1022 return ATA_UDMA0; 1023 } 1024 return -1; 1025 } 1026 1027 int 1028 ata_limit_mode(device_t dev, int mode, int maxmode) 1029 { 1030 struct ata_device *atadev = device_get_softc(dev); 1031 1032 if (maxmode && mode > maxmode) 1033 mode = maxmode; 1034 1035 if (mode >= ATA_UDMA0 && ata_umode(&atadev->param) > 0) 1036 return min(mode, ata_umode(&atadev->param)); 1037 1038 if (mode >= ATA_WDMA0 && ata_wmode(&atadev->param) > 0) 1039 return min(mode, ata_wmode(&atadev->param)); 1040 1041 if (mode > ata_pmode(&atadev->param)) 1042 return min(mode, ata_pmode(&atadev->param)); 1043 1044 return mode; 1045 } 1046 1047 static void 1048 bswap(int8_t *buf, int len) 1049 { 1050 u_int16_t *ptr = (u_int16_t*)(buf + len); 1051 1052 while (--ptr >= (u_int16_t*)buf) 1053 *ptr = ntohs(*ptr); 1054 } 1055 1056 static void 1057 btrim(int8_t *buf, int len) 1058 { 1059 int8_t *ptr; 1060 1061 for (ptr = buf; ptr < buf+len; ++ptr) 1062 if (!*ptr || *ptr == '_') 1063 *ptr = ' '; 1064 for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr) 1065 *ptr = 0; 1066 } 1067 1068 static void 1069 bpack(int8_t *src, int8_t *dst, int len) 1070 { 1071 int i, j, blank; 1072 1073 for (i = j = blank = 0 ; i < len; i++) { 1074 if (blank && src[i] == ' ') continue; 1075 if (blank && src[i] != ' ') { 1076 dst[j++] = src[i]; 1077 blank = 0; 1078 continue; 1079 } 1080 if (src[i] == ' ') { 1081 blank = 1; 1082 if (i == 0) 1083 continue; 1084 } 1085 dst[j++] = src[i]; 1086 } 1087 if (j < len) 1088 dst[j] = 0x00; 1089 } 1090 1091 1092 /* 1093 * module handeling 1094 */ 1095 static int 1096 ata_module_event_handler(module_t mod, int what, void *arg) 1097 { 1098 static struct cdev *atacdev; 1099 1100 switch (what) { 1101 case MOD_LOAD: 1102 /* register controlling device */ 1103 atacdev = make_dev(&ata_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, "ata"); 1104 1105 if (cold) { 1106 /* register boot attach to be run when interrupts are enabled */ 1107 if (!(ata_delayed_attach = (struct intr_config_hook *) 1108 malloc(sizeof(struct intr_config_hook), 1109 M_TEMP, M_NOWAIT | M_ZERO))) { 1110 printf("ata: malloc of delayed attach hook failed\n"); 1111 return EIO; 1112 } 1113 ata_delayed_attach->ich_func = (void*)ata_boot_attach; 1114 if (config_intrhook_establish(ata_delayed_attach) != 0) { 1115 printf("ata: config_intrhook_establish failed\n"); 1116 free(ata_delayed_attach, M_TEMP); 1117 } 1118 } 1119 return 0; 1120 1121 case MOD_UNLOAD: 1122 /* deregister controlling device */ 1123 destroy_dev(atacdev); 1124 return 0; 1125 1126 default: 1127 return EOPNOTSUPP; 1128 } 1129 } 1130 1131 static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL }; 1132 DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND); 1133 MODULE_VERSION(ata, 1); 1134 1135 static void 1136 ata_init(void) 1137 { 1138 ata_request_zone = uma_zcreate("ata_request", sizeof(struct ata_request), 1139 NULL, NULL, NULL, NULL, 0, 0); 1140 ata_composite_zone = uma_zcreate("ata_composite", 1141 sizeof(struct ata_composite), 1142 NULL, NULL, NULL, NULL, 0, 0); 1143 } 1144 SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL); 1145 1146 static void 1147 ata_uninit(void) 1148 { 1149 uma_zdestroy(ata_composite_zone); 1150 uma_zdestroy(ata_request_zone); 1151 } 1152 SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL); 1153