1 /*- 2 * Copyright (c) 1998 - 2005 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 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include "opt_ata.h" 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/ata.h> 36 #include <sys/kernel.h> 37 #include <sys/module.h> 38 #include <sys/endian.h> 39 #include <sys/ctype.h> 40 #include <sys/conf.h> 41 #include <sys/bus.h> 42 #include <sys/bio.h> 43 #include <sys/malloc.h> 44 #include <sys/sysctl.h> 45 #include <sys/sema.h> 46 #include <sys/taskqueue.h> 47 #include <vm/uma.h> 48 #include <machine/stdarg.h> 49 #include <machine/resource.h> 50 #include <machine/bus.h> 51 #include <sys/rman.h> 52 #ifdef __alpha__ 53 #include <machine/md_var.h> 54 #endif 55 #include <dev/ata/ata-all.h> 56 #include <ata_if.h> 57 58 /* device structure */ 59 static d_ioctl_t ata_ioctl; 60 static struct cdevsw ata_cdevsw = { 61 .d_version = D_VERSION, 62 .d_flags = D_NEEDGIANT, /* we need this as newbus isn't mpsafe */ 63 .d_ioctl = ata_ioctl, 64 .d_name = "ata", 65 }; 66 67 /* prototypes */ 68 static void ata_interrupt(void *); 69 static void ata_boot_attach(void); 70 static device_t ata_add_child(device_t, struct ata_device *, int); 71 static int ata_getparam(struct ata_device *, int); 72 static void bswap(int8_t *, int); 73 static void btrim(int8_t *, int); 74 static void bpack(int8_t *, int8_t *, int); 75 76 /* global vars */ 77 MALLOC_DEFINE(M_ATA, "ata_generic", "ATA driver generic layer"); 78 int (*ata_raid_ioctl_func)(u_long cmd, caddr_t data) = NULL; 79 devclass_t ata_devclass; 80 uma_zone_t ata_request_zone; 81 uma_zone_t ata_composite_zone; 82 int ata_wc = 1; 83 84 /* local vars */ 85 static struct intr_config_hook *ata_delayed_attach = NULL; 86 static int ata_dma = 1; 87 static int atapi_dma = 1; 88 89 /* sysctl vars */ 90 SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters"); 91 TUNABLE_INT("hw.ata.ata_dma", &ata_dma); 92 SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RDTUN, &ata_dma, 0, 93 "ATA disk DMA mode control"); 94 TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma); 95 SYSCTL_INT(_hw_ata, OID_AUTO, atapi_dma, CTLFLAG_RDTUN, &atapi_dma, 0, 96 "ATAPI device DMA mode control"); 97 TUNABLE_INT("hw.ata.wc", &ata_wc); 98 SYSCTL_INT(_hw_ata, OID_AUTO, wc, CTLFLAG_RDTUN, &ata_wc, 0, 99 "ATA disk write caching"); 100 101 /* 102 * newbus device interface related functions 103 */ 104 int 105 ata_probe(device_t dev) 106 { 107 return 0; 108 } 109 110 int 111 ata_attach(device_t dev) 112 { 113 struct ata_channel *ch = device_get_softc(dev); 114 int error, rid; 115 116 /* check that we have a virgin channel to attach */ 117 if (ch->r_irq) 118 return EEXIST; 119 120 /* initialize the softc basics */ 121 ch->dev = dev; 122 ch->state = ATA_IDLE; 123 bzero(&ch->state_mtx, sizeof(struct mtx)); 124 mtx_init(&ch->state_mtx, "ATA state lock", NULL, MTX_DEF); 125 bzero(&ch->queue_mtx, sizeof(struct mtx)); 126 mtx_init(&ch->queue_mtx, "ATA queue lock", NULL, MTX_DEF); 127 TAILQ_INIT(&ch->ata_queue); 128 129 /* reset the controller HW, the channel and device(s) */ 130 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit) 131 tsleep(&error, PRIBIO, "ataatch", 1); 132 ATA_RESET(dev); 133 ATA_LOCKING(dev, ATA_LF_UNLOCK); 134 135 /* setup interrupt delivery */ 136 rid = ATA_IRQ_RID; 137 ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 138 RF_SHAREABLE | RF_ACTIVE); 139 if (!ch->r_irq) { 140 device_printf(dev, "unable to allocate interrupt\n"); 141 return ENXIO; 142 } 143 if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, 144 ata_interrupt, ch, &ch->ih))) { 145 device_printf(dev, "unable to setup interrupt\n"); 146 return error; 147 } 148 149 /* probe and attach devices on this channel unless we are in early boot */ 150 if (!ata_delayed_attach) 151 ata_identify(dev); 152 return 0; 153 } 154 155 int 156 ata_detach(device_t dev) 157 { 158 struct ata_channel *ch = device_get_softc(dev); 159 device_t *children; 160 int nchildren, i; 161 162 /* check that we have a valid channel to detach */ 163 if (!ch->r_irq) 164 return ENXIO; 165 166 /* detach & delete all children */ 167 if (!device_get_children(dev, &children, &nchildren)) { 168 for (i = 0; i < nchildren; i++) 169 if (children[i]) 170 device_delete_child(dev, children[i]); 171 free(children, M_TEMP); 172 } 173 174 /* release resources */ 175 bus_teardown_intr(dev, ch->r_irq, ch->ih); 176 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 177 ch->r_irq = NULL; 178 mtx_destroy(&ch->state_mtx); 179 mtx_destroy(&ch->queue_mtx); 180 return 0; 181 } 182 183 int 184 ata_reinit(device_t dev) 185 { 186 struct ata_channel *ch = device_get_softc(dev); 187 struct ata_request *request; 188 device_t *children; 189 int nchildren, i; 190 191 /* check that we have a valid channel to reinit */ 192 if (!ch || !ch->r_irq) 193 return ENXIO; 194 195 if (bootverbose) 196 device_printf(dev, "reiniting channel ..\n"); 197 198 /* poll for locking the channel */ 199 while (ATA_LOCKING(dev, ATA_LF_LOCK) != ch->unit) 200 tsleep(&dev, PRIBIO, "atarini", 1); 201 202 /* unconditionally grap the channel lock */ 203 mtx_lock(&ch->state_mtx); 204 ch->state = ATA_STALL_QUEUE; 205 mtx_unlock(&ch->state_mtx); 206 207 /* reset the controller HW, the channel and device(s) */ 208 ATA_RESET(dev); 209 210 /* reinit the children and delete any that fails */ 211 if (!device_get_children(dev, &children, &nchildren)) { 212 mtx_lock(&Giant); /* newbus suckage it needs Giant */ 213 for (i = 0; i < nchildren; i++) { 214 if (children[i] && device_is_attached(children[i])) 215 if (ATA_REINIT(children[i])) { 216 /* 217 * if we have a running request and its device matches 218 * this child we need to inform the request that the 219 * device is gone and remove it from ch->running 220 */ 221 mtx_lock(&ch->state_mtx); 222 if (ch->running && ch->running->dev == children[i]) { 223 callout_stop(&ch->running->callout); 224 request = ch->running; 225 ch->running = NULL; 226 } 227 else 228 request = NULL; 229 mtx_unlock(&ch->state_mtx); 230 231 if (request) { 232 request->result = ENXIO; 233 device_printf(request->dev, 234 "FAILURE - device detached\n"); 235 236 /* if not timeout finish request here */ 237 if (!(request->flags & ATA_R_TIMEOUT)) 238 ata_finish(request); 239 } 240 device_delete_child(dev, children[i]); 241 } 242 } 243 free(children, M_TEMP); 244 mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */ 245 } 246 247 /* catch request in ch->running if we havn't already */ 248 mtx_lock(&ch->state_mtx); 249 if ((request = ch->running)) 250 callout_stop(&request->callout); 251 ch->running = NULL; 252 mtx_unlock(&ch->state_mtx); 253 254 /* if we got one put it on the queue again */ 255 if (request) { 256 device_printf(request->dev, 257 "WARNING - %s requeued due to channel reset", 258 ata_cmd2str(request)); 259 if (!(request->flags & (ATA_R_ATAPI | ATA_R_CONTROL))) 260 printf(" LBA=%llu", (unsigned long long)request->u.ata.lba); 261 printf("\n"); 262 request->flags |= ATA_R_REQUEUE; 263 ata_queue_request(request); 264 } 265 266 /* we're done release the channel for new work */ 267 mtx_lock(&ch->state_mtx); 268 ch->state = ATA_IDLE; 269 mtx_unlock(&ch->state_mtx); 270 ATA_LOCKING(dev, ATA_LF_UNLOCK); 271 272 if (bootverbose) 273 device_printf(dev, "reinit done ..\n"); 274 275 /* kick off requests on the queue */ 276 ata_start(dev); 277 return 0; 278 } 279 280 int 281 ata_suspend(device_t dev) 282 { 283 struct ata_channel *ch; 284 285 /* check for valid device */ 286 if (!dev || !(ch = device_get_softc(dev))) 287 return ENXIO; 288 289 /* wait for the channel to be IDLE before entering suspend mode */ 290 while (1) { 291 mtx_lock(&ch->state_mtx); 292 if (ch->state == ATA_IDLE) { 293 ch->state = ATA_ACTIVE; 294 mtx_unlock(&ch->state_mtx); 295 break; 296 } 297 mtx_unlock(&ch->state_mtx); 298 tsleep(ch, PRIBIO, "atasusp", hz/10); 299 } 300 ATA_LOCKING(dev, ATA_LF_UNLOCK); 301 return 0; 302 } 303 304 int 305 ata_resume(device_t dev) 306 { 307 struct ata_channel *ch; 308 int error; 309 310 /* check for valid device */ 311 if (!dev || !(ch = device_get_softc(dev))) 312 return ENXIO; 313 314 /* reinit the devices, we dont know what mode/state they are in */ 315 error = ata_reinit(dev); 316 317 /* kick off requests on the queue */ 318 ata_start(dev); 319 return error; 320 } 321 322 static void 323 ata_interrupt(void *data) 324 { 325 struct ata_channel *ch = (struct ata_channel *)data; 326 struct ata_request *request; 327 328 mtx_lock(&ch->state_mtx); 329 do { 330 /* do we have a running request */ 331 if (!(request = ch->running)) 332 break; 333 334 ATA_DEBUG_RQ(request, "interrupt"); 335 336 /* ignore interrupt if device is busy */ 337 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 338 DELAY(100); 339 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 340 break; 341 } 342 343 /* check for the right state */ 344 if (ch->state != ATA_ACTIVE && ch->state != ATA_STALL_QUEUE) { 345 device_printf(request->dev, "interrupt on idle channel ignored\n"); 346 break; 347 } 348 349 /* 350 * we have the HW locks, so end the tranaction for this request 351 * if it finishes immediately otherwise wait for next interrupt 352 */ 353 if (ch->hw.end_transaction(request) == ATA_OP_FINISHED) { 354 ch->running = NULL; 355 if (ch->state == ATA_ACTIVE) 356 ch->state = ATA_IDLE; 357 mtx_unlock(&ch->state_mtx); 358 ATA_LOCKING(ch->dev, ATA_LF_UNLOCK); 359 ata_finish(request); 360 return; 361 } 362 } while (0); 363 mtx_unlock(&ch->state_mtx); 364 } 365 366 /* 367 * device related interfaces 368 */ 369 static int 370 ata_ioctl(struct cdev *dev, u_long cmd, caddr_t data, 371 int32_t flag, struct thread *td) 372 { 373 device_t device, *children; 374 struct ata_ioc_devices *devices = (struct ata_ioc_devices *)data; 375 int *value = (int *)data; 376 int i, nchildren, error = ENOTTY; 377 378 switch (cmd) { 379 case IOCATAGMAXCHANNEL: 380 *value = devclass_get_maxunit(ata_devclass); 381 error = 0; 382 break; 383 384 case IOCATAREINIT: 385 if (*value > devclass_get_maxunit(ata_devclass) || 386 !(device = devclass_get_device(ata_devclass, *value))) 387 return ENXIO; 388 error = ata_reinit(device); 389 ata_start(device); 390 break; 391 392 case IOCATAATTACH: 393 if (*value > devclass_get_maxunit(ata_devclass) || 394 !(device = devclass_get_device(ata_devclass, *value))) 395 return ENXIO; 396 /* XXX SOS should enable channel HW on controller */ 397 error = ata_attach(device); 398 break; 399 400 case IOCATADETACH: 401 if (*value > devclass_get_maxunit(ata_devclass) || 402 !(device = devclass_get_device(ata_devclass, *value))) 403 return ENXIO; 404 error = ata_detach(device); 405 /* XXX SOS should disable channel HW on controller */ 406 break; 407 408 case IOCATADEVICES: 409 if (devices->channel > devclass_get_maxunit(ata_devclass) || 410 !(device = devclass_get_device(ata_devclass, devices->channel))) 411 return ENXIO; 412 bzero(devices->name[0], 32); 413 bzero(&devices->params[0], sizeof(struct ata_params)); 414 bzero(devices->name[1], 32); 415 bzero(&devices->params[1], sizeof(struct ata_params)); 416 if (!device_get_children(device, &children, &nchildren)) { 417 for (i = 0; i < nchildren; i++) { 418 if (children[i] && device_is_attached(children[i])) { 419 struct ata_device *atadev = device_get_softc(children[i]); 420 421 if (atadev->unit == ATA_MASTER) { 422 strncpy(devices->name[0], 423 device_get_nameunit(children[i]), 32); 424 bcopy(&atadev->param, &devices->params[0], 425 sizeof(struct ata_params)); 426 } 427 if (atadev->unit == ATA_SLAVE) { 428 strncpy(devices->name[1], 429 device_get_nameunit(children[i]), 32); 430 bcopy(&atadev->param, &devices->params[1], 431 sizeof(struct ata_params)); 432 } 433 } 434 } 435 free(children, M_TEMP); 436 error = 0; 437 } 438 else 439 error = ENODEV; 440 break; 441 442 default: 443 if (ata_raid_ioctl_func) 444 error = ata_raid_ioctl_func(cmd, data); 445 } 446 return error; 447 } 448 449 int 450 ata_device_ioctl(device_t dev, u_long cmd, caddr_t data) 451 { 452 struct ata_device *atadev = device_get_softc(dev); 453 struct ata_ioc_request *ioc_request = (struct ata_ioc_request *)data; 454 struct ata_params *params = (struct ata_params *)data; 455 int *mode = (int *)data; 456 struct ata_request *request; 457 caddr_t buf; 458 int error; 459 460 switch (cmd) { 461 case IOCATAREQUEST: 462 if (!(buf = malloc(ioc_request->count, M_ATA, M_NOWAIT))) { 463 return ENOMEM; 464 } 465 if (!(request = ata_alloc_request())) { 466 free(buf, M_ATA); 467 return ENOMEM; 468 } 469 if (ioc_request->flags & ATA_CMD_WRITE) { 470 error = copyin(ioc_request->data, buf, ioc_request->count); 471 if (error) { 472 free(buf, M_ATA); 473 ata_free_request(request); 474 return error; 475 } 476 } 477 request->dev = dev; 478 if (ioc_request->flags & ATA_CMD_ATAPI) { 479 request->flags = ATA_R_ATAPI; 480 bcopy(ioc_request->u.atapi.ccb, request->u.atapi.ccb, 16); 481 } 482 else { 483 request->u.ata.command = ioc_request->u.ata.command; 484 request->u.ata.feature = ioc_request->u.ata.feature; 485 request->u.ata.lba = ioc_request->u.ata.lba; 486 request->u.ata.count = ioc_request->u.ata.count; 487 } 488 request->timeout = ioc_request->timeout; 489 request->data = buf; 490 request->bytecount = ioc_request->count; 491 request->transfersize = request->bytecount; 492 if (ioc_request->flags & ATA_CMD_CONTROL) 493 request->flags |= ATA_R_CONTROL; 494 if (ioc_request->flags & ATA_CMD_READ) 495 request->flags |= ATA_R_READ; 496 if (ioc_request->flags & ATA_CMD_WRITE) 497 request->flags |= ATA_R_WRITE; 498 ata_queue_request(request); 499 if (!(request->flags & ATA_R_ATAPI)) { 500 ioc_request->u.ata.command = request->u.ata.command; 501 ioc_request->u.ata.feature = request->u.ata.feature; 502 ioc_request->u.ata.lba = request->u.ata.lba; 503 ioc_request->u.ata.count = request->u.ata.count; 504 } 505 ioc_request->error = request->result; 506 if (ioc_request->flags & ATA_CMD_READ) 507 error = copyout(buf, ioc_request->data, ioc_request->count); 508 else 509 error = 0; 510 free(buf, M_ATA); 511 ata_free_request(request); 512 return error; 513 514 case IOCATAGPARM: 515 ata_getparam(atadev, 0); 516 bcopy(&atadev->param, params, sizeof(struct ata_params)); 517 return 0; 518 519 case IOCATASMODE: 520 atadev->mode = *mode; 521 ATA_SETMODE(device_get_parent(dev), dev); 522 return 0; 523 524 case IOCATAGMODE: 525 *mode = atadev->mode; 526 return 0; 527 default: 528 return ENOTTY; 529 } 530 } 531 532 static void 533 ata_boot_attach(void) 534 { 535 struct ata_channel *ch; 536 int ctlr; 537 538 mtx_lock(&Giant); /* newbus suckage it needs Giant */ 539 540 /* kick of probe and attach on all channels */ 541 for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) { 542 if ((ch = devclass_get_softc(ata_devclass, ctlr))) { 543 ata_identify(ch->dev); 544 } 545 } 546 547 /* release the hook that got us here, we are only needed once during boot */ 548 if (ata_delayed_attach) { 549 config_intrhook_disestablish(ata_delayed_attach); 550 ata_delayed_attach = NULL; 551 free(ata_delayed_attach, M_TEMP); 552 } 553 554 mtx_unlock(&Giant); /* newbus suckage dealt with, release Giant */ 555 } 556 557 558 /* 559 * misc support functions 560 */ 561 static device_t 562 ata_add_child(device_t parent, struct ata_device *atadev, int unit) 563 { 564 device_t child; 565 566 if ((child = device_add_child(parent, NULL, unit))) { 567 device_set_softc(child, atadev); 568 device_quiet(child); 569 atadev->dev = child; 570 atadev->max_iosize = DEV_BSIZE; 571 atadev->mode = ATA_PIO_MAX; 572 } 573 return child; 574 } 575 576 static int 577 ata_getparam(struct ata_device *atadev, int init) 578 { 579 struct ata_channel *ch = device_get_softc(device_get_parent(atadev->dev)); 580 struct ata_request *request; 581 u_int8_t command = 0; 582 int error = ENOMEM, retries = 2; 583 584 if (ch->devices & 585 (atadev->unit == ATA_MASTER ? ATA_ATA_MASTER : ATA_ATA_SLAVE)) 586 command = ATA_ATA_IDENTIFY; 587 if (ch->devices & 588 (atadev->unit == ATA_MASTER ? ATA_ATAPI_MASTER : ATA_ATAPI_SLAVE)) 589 command = ATA_ATAPI_IDENTIFY; 590 if (!command) 591 return ENXIO; 592 593 while (retries-- > 0 && error) { 594 if (!(request = ata_alloc_request())) 595 break; 596 request->dev = atadev->dev; 597 request->timeout = 1; 598 request->retries = 0; 599 request->u.ata.command = command; 600 request->flags = (ATA_R_READ|ATA_R_AT_HEAD|ATA_R_DIRECT|ATA_R_QUIET); 601 request->data = (void *)&atadev->param; 602 request->bytecount = sizeof(struct ata_params); 603 request->donecount = 0; 604 request->transfersize = DEV_BSIZE; 605 ata_queue_request(request); 606 error = request->result; 607 ata_free_request(request); 608 } 609 610 if (!error && (isprint(atadev->param.model[0]) || 611 isprint(atadev->param.model[1]))) { 612 struct ata_params *atacap = &atadev->param; 613 char buffer[64]; 614 #if BYTE_ORDER == BIG_ENDIAN 615 int16_t *ptr; 616 617 for (ptr = (int16_t *)atacap; 618 ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) { 619 *ptr = bswap16(*ptr); 620 } 621 #endif 622 if (!(!strncmp(atacap->model, "FX", 2) || 623 !strncmp(atacap->model, "NEC", 3) || 624 !strncmp(atacap->model, "Pioneer", 7) || 625 !strncmp(atacap->model, "SHARP", 5))) { 626 bswap(atacap->model, sizeof(atacap->model)); 627 bswap(atacap->revision, sizeof(atacap->revision)); 628 bswap(atacap->serial, sizeof(atacap->serial)); 629 } 630 btrim(atacap->model, sizeof(atacap->model)); 631 bpack(atacap->model, atacap->model, sizeof(atacap->model)); 632 btrim(atacap->revision, sizeof(atacap->revision)); 633 bpack(atacap->revision, atacap->revision, sizeof(atacap->revision)); 634 btrim(atacap->serial, sizeof(atacap->serial)); 635 bpack(atacap->serial, atacap->serial, sizeof(atacap->serial)); 636 637 if (bootverbose) 638 printf("ata%d-%s: pio=%s wdma=%s udma=%s cable=%s wire\n", 639 ch->unit, atadev->unit == ATA_MASTER ? "master":"slave", 640 ata_mode2str(ata_pmode(atacap)), 641 ata_mode2str(ata_wmode(atacap)), 642 ata_mode2str(ata_umode(atacap)), 643 (atacap->hwres & ATA_CABLE_ID) ? "80":"40"); 644 645 if (init) { 646 sprintf(buffer, "%.40s/%.8s", atacap->model, atacap->revision); 647 device_set_desc_copy(atadev->dev, buffer); 648 if (atadev->param.config & ATA_PROTO_ATAPI) { 649 if (atapi_dma && ch->dma && 650 (atadev->param.config & ATA_DRQ_MASK) != ATA_DRQ_INTR && 651 ata_umode(&atadev->param) >= ATA_UDMA2) 652 atadev->mode = ATA_DMA_MAX; 653 } 654 else { 655 if (ata_dma && ch->dma && 656 (ata_umode(&atadev->param) > 0 || 657 ata_wmode(&atadev->param) > 0)) 658 atadev->mode = ATA_DMA_MAX; 659 } 660 } 661 } 662 else { 663 if (!error) 664 error = ENXIO; 665 } 666 return error; 667 } 668 669 int 670 ata_identify(device_t dev) 671 { 672 struct ata_channel *ch = device_get_softc(dev); 673 struct ata_device *master = NULL, *slave = NULL; 674 device_t master_child = NULL, slave_child = NULL; 675 int master_unit = -1, slave_unit = -1; 676 677 if (ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) { 678 if (!(master = malloc(sizeof(struct ata_device), 679 M_ATA, M_NOWAIT | M_ZERO))) { 680 device_printf(dev, "out of memory\n"); 681 return ENOMEM; 682 } 683 master->unit = ATA_MASTER; 684 } 685 if (ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) { 686 if (!(slave = malloc(sizeof(struct ata_device), 687 M_ATA, M_NOWAIT | M_ZERO))) { 688 free(master, M_ATA); 689 device_printf(dev, "out of memory\n"); 690 return ENOMEM; 691 } 692 slave->unit = ATA_SLAVE; 693 } 694 695 #ifdef ATA_STATIC_ID 696 if (ch->devices & ATA_ATA_MASTER) 697 master_unit = (device_get_unit(dev) << 1); 698 #endif 699 if (master && !(master_child = ata_add_child(dev, master, master_unit))) { 700 free(master, M_ATA); 701 master = NULL; 702 } 703 #ifdef ATA_STATIC_ID 704 if (ch->devices & ATA_ATA_SLAVE) 705 slave_unit = (device_get_unit(dev) << 1) + 1; 706 #endif 707 if (slave && !(slave_child = ata_add_child(dev, slave, slave_unit))) { 708 free(slave, M_ATA); 709 slave = NULL; 710 } 711 712 if (slave && ata_getparam(slave, 1)) { 713 device_delete_child(dev, slave_child); 714 free(slave, M_ATA); 715 } 716 if (master && ata_getparam(master, 1)) { 717 device_delete_child(dev, master_child); 718 free(master, M_ATA); 719 } 720 721 bus_generic_probe(dev); 722 bus_generic_attach(dev); 723 return 0; 724 } 725 726 void 727 ata_default_registers(device_t dev) 728 { 729 struct ata_channel *ch = device_get_softc(dev); 730 731 /* fill in the defaults from whats setup already */ 732 ch->r_io[ATA_ERROR].res = ch->r_io[ATA_FEATURE].res; 733 ch->r_io[ATA_ERROR].offset = ch->r_io[ATA_FEATURE].offset; 734 ch->r_io[ATA_IREASON].res = ch->r_io[ATA_COUNT].res; 735 ch->r_io[ATA_IREASON].offset = ch->r_io[ATA_COUNT].offset; 736 ch->r_io[ATA_STATUS].res = ch->r_io[ATA_COMMAND].res; 737 ch->r_io[ATA_STATUS].offset = ch->r_io[ATA_COMMAND].offset; 738 ch->r_io[ATA_ALTSTAT].res = ch->r_io[ATA_CONTROL].res; 739 ch->r_io[ATA_ALTSTAT].offset = ch->r_io[ATA_CONTROL].offset; 740 } 741 742 void 743 ata_modify_if_48bit(struct ata_request *request) 744 { 745 struct ata_channel *ch = device_get_softc(device_get_parent(request->dev)); 746 struct ata_device *atadev = device_get_softc(request->dev); 747 748 atadev->flags &= ~ATA_D_48BIT_ACTIVE; 749 750 if ((request->u.ata.lba >= ATA_MAX_28BIT_LBA || 751 request->u.ata.count > 256) && 752 atadev->param.support.command2 & ATA_SUPPORT_ADDRESS48) { 753 754 /* translate command into 48bit version */ 755 switch (request->u.ata.command) { 756 case ATA_READ: 757 request->u.ata.command = ATA_READ48; 758 break; 759 case ATA_READ_MUL: 760 request->u.ata.command = ATA_READ_MUL48; 761 break; 762 case ATA_READ_DMA: 763 if (ch->flags & ATA_NO_48BIT_DMA) { 764 if (request->transfersize > DEV_BSIZE) 765 request->u.ata.command = ATA_READ_MUL48; 766 else 767 request->u.ata.command = ATA_READ48; 768 request->flags &= ~ATA_R_DMA; 769 } 770 else 771 request->u.ata.command = ATA_READ_DMA48; 772 break; 773 case ATA_READ_DMA_QUEUED: 774 if (ch->flags & ATA_NO_48BIT_DMA) { 775 if (request->transfersize > DEV_BSIZE) 776 request->u.ata.command = ATA_READ_MUL48; 777 else 778 request->u.ata.command = ATA_READ48; 779 request->flags &= ~ATA_R_DMA; 780 } 781 else 782 request->u.ata.command = ATA_READ_DMA_QUEUED48; 783 break; 784 case ATA_WRITE: 785 request->u.ata.command = ATA_WRITE48; 786 break; 787 case ATA_WRITE_MUL: 788 request->u.ata.command = ATA_WRITE_MUL48; 789 break; 790 case ATA_WRITE_DMA: 791 if (ch->flags & ATA_NO_48BIT_DMA) { 792 if (request->transfersize > DEV_BSIZE) 793 request->u.ata.command = ATA_WRITE_MUL48; 794 else 795 request->u.ata.command = ATA_WRITE48; 796 request->flags &= ~ATA_R_DMA; 797 } 798 else 799 request->u.ata.command = ATA_WRITE_DMA48; 800 break; 801 case ATA_WRITE_DMA_QUEUED: 802 if (ch->flags & ATA_NO_48BIT_DMA) { 803 if (request->transfersize > DEV_BSIZE) 804 request->u.ata.command = ATA_WRITE_MUL48; 805 else 806 request->u.ata.command = ATA_WRITE48; 807 request->u.ata.command = ATA_WRITE48; 808 request->flags &= ~ATA_R_DMA; 809 } 810 else 811 request->u.ata.command = ATA_WRITE_DMA_QUEUED48; 812 break; 813 case ATA_FLUSHCACHE: 814 request->u.ata.command = ATA_FLUSHCACHE48; 815 break; 816 case ATA_READ_NATIVE_MAX_ADDDRESS: 817 request->u.ata.command = ATA_READ_NATIVE_MAX_ADDDRESS48; 818 break; 819 case ATA_SET_MAX_ADDRESS: 820 request->u.ata.command = ATA_SET_MAX_ADDRESS48; 821 break; 822 default: 823 return; 824 } 825 atadev->flags |= ATA_D_48BIT_ACTIVE; 826 } 827 } 828 829 void 830 ata_udelay(int interval) 831 { 832 /* for now just use DELAY, the timer/sleep subsytems are not there yet */ 833 if (1 || interval < (1000000/hz) || ata_delayed_attach) 834 DELAY(interval); 835 else 836 tsleep(&interval, PRIBIO, "ataslp", interval/(1000000/hz)); 837 } 838 839 char * 840 ata_mode2str(int mode) 841 { 842 switch (mode) { 843 case -1: return "UNSUPPORTED"; 844 case ATA_PIO0: return "PIO0"; 845 case ATA_PIO1: return "PIO1"; 846 case ATA_PIO2: return "PIO2"; 847 case ATA_PIO3: return "PIO3"; 848 case ATA_PIO4: return "PIO4"; 849 case ATA_WDMA0: return "WDMA0"; 850 case ATA_WDMA1: return "WDMA1"; 851 case ATA_WDMA2: return "WDMA2"; 852 case ATA_UDMA0: return "UDMA16"; 853 case ATA_UDMA1: return "UDMA25"; 854 case ATA_UDMA2: return "UDMA33"; 855 case ATA_UDMA3: return "UDMA40"; 856 case ATA_UDMA4: return "UDMA66"; 857 case ATA_UDMA5: return "UDMA100"; 858 case ATA_UDMA6: return "UDMA133"; 859 case ATA_SA150: return "SATA150"; 860 case ATA_SA300: return "SATA300"; 861 default: 862 if (mode & ATA_DMA_MASK) 863 return "BIOSDMA"; 864 else 865 return "BIOSPIO"; 866 } 867 } 868 869 int 870 ata_pmode(struct ata_params *ap) 871 { 872 if (ap->atavalid & ATA_FLAG_64_70) { 873 if (ap->apiomodes & 0x02) 874 return ATA_PIO4; 875 if (ap->apiomodes & 0x01) 876 return ATA_PIO3; 877 } 878 if (ap->mwdmamodes & 0x04) 879 return ATA_PIO4; 880 if (ap->mwdmamodes & 0x02) 881 return ATA_PIO3; 882 if (ap->mwdmamodes & 0x01) 883 return ATA_PIO2; 884 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200) 885 return ATA_PIO2; 886 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100) 887 return ATA_PIO1; 888 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000) 889 return ATA_PIO0; 890 return ATA_PIO0; 891 } 892 893 int 894 ata_wmode(struct ata_params *ap) 895 { 896 if (ap->mwdmamodes & 0x04) 897 return ATA_WDMA2; 898 if (ap->mwdmamodes & 0x02) 899 return ATA_WDMA1; 900 if (ap->mwdmamodes & 0x01) 901 return ATA_WDMA0; 902 return -1; 903 } 904 905 int 906 ata_umode(struct ata_params *ap) 907 { 908 if (ap->atavalid & ATA_FLAG_88) { 909 if (ap->udmamodes & 0x40) 910 return ATA_UDMA6; 911 if (ap->udmamodes & 0x20) 912 return ATA_UDMA5; 913 if (ap->udmamodes & 0x10) 914 return ATA_UDMA4; 915 if (ap->udmamodes & 0x08) 916 return ATA_UDMA3; 917 if (ap->udmamodes & 0x04) 918 return ATA_UDMA2; 919 if (ap->udmamodes & 0x02) 920 return ATA_UDMA1; 921 if (ap->udmamodes & 0x01) 922 return ATA_UDMA0; 923 } 924 return -1; 925 } 926 927 int 928 ata_limit_mode(device_t dev, int mode, int maxmode) 929 { 930 struct ata_device *atadev = device_get_softc(dev); 931 932 if (maxmode && mode > maxmode) 933 mode = maxmode; 934 935 if (mode >= ATA_UDMA0 && ata_umode(&atadev->param) > 0) 936 return min(mode, ata_umode(&atadev->param)); 937 938 if (mode >= ATA_WDMA0 && ata_wmode(&atadev->param) > 0) 939 return min(mode, ata_wmode(&atadev->param)); 940 941 if (mode > ata_pmode(&atadev->param)) 942 return min(mode, ata_pmode(&atadev->param)); 943 944 return mode; 945 } 946 947 static void 948 bswap(int8_t *buf, int len) 949 { 950 u_int16_t *ptr = (u_int16_t*)(buf + len); 951 952 while (--ptr >= (u_int16_t*)buf) 953 *ptr = ntohs(*ptr); 954 } 955 956 static void 957 btrim(int8_t *buf, int len) 958 { 959 int8_t *ptr; 960 961 for (ptr = buf; ptr < buf+len; ++ptr) 962 if (!*ptr || *ptr == '_') 963 *ptr = ' '; 964 for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr) 965 *ptr = 0; 966 } 967 968 static void 969 bpack(int8_t *src, int8_t *dst, int len) 970 { 971 int i, j, blank; 972 973 for (i = j = blank = 0 ; i < len; i++) { 974 if (blank && src[i] == ' ') continue; 975 if (blank && src[i] != ' ') { 976 dst[j++] = src[i]; 977 blank = 0; 978 continue; 979 } 980 if (src[i] == ' ') { 981 blank = 1; 982 if (i == 0) 983 continue; 984 } 985 dst[j++] = src[i]; 986 } 987 if (j < len) 988 dst[j] = 0x00; 989 } 990 991 992 /* 993 * module handeling 994 */ 995 static int 996 ata_module_event_handler(module_t mod, int what, void *arg) 997 { 998 static struct cdev *atacdev; 999 1000 switch (what) { 1001 case MOD_LOAD: 1002 /* register controlling device */ 1003 atacdev = make_dev(&ata_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, "ata"); 1004 1005 if (cold) { 1006 /* register boot attach to be run when interrupts are enabled */ 1007 if (!(ata_delayed_attach = (struct intr_config_hook *) 1008 malloc(sizeof(struct intr_config_hook), 1009 M_TEMP, M_NOWAIT | M_ZERO))) { 1010 printf("ata: malloc of delayed attach hook failed\n"); 1011 return EIO; 1012 } 1013 ata_delayed_attach->ich_func = (void*)ata_boot_attach; 1014 if (config_intrhook_establish(ata_delayed_attach) != 0) { 1015 printf("ata: config_intrhook_establish failed\n"); 1016 free(ata_delayed_attach, M_TEMP); 1017 } 1018 } 1019 return 0; 1020 1021 case MOD_UNLOAD: 1022 /* deregister controlling device */ 1023 destroy_dev(atacdev); 1024 return 0; 1025 1026 default: 1027 return EOPNOTSUPP; 1028 } 1029 } 1030 1031 static moduledata_t ata_moduledata = { "ata", ata_module_event_handler, NULL }; 1032 DECLARE_MODULE(ata, ata_moduledata, SI_SUB_CONFIGURE, SI_ORDER_SECOND); 1033 MODULE_VERSION(ata, 1); 1034 1035 static void 1036 ata_init(void) 1037 { 1038 ata_request_zone = uma_zcreate("ata_request", sizeof(struct ata_request), 1039 NULL, NULL, NULL, NULL, 0, 0); 1040 ata_composite_zone = uma_zcreate("ata_composite", 1041 sizeof(struct ata_composite), 1042 NULL, NULL, NULL, NULL, 0, 0); 1043 } 1044 SYSINIT(ata_register, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL); 1045 1046 static void 1047 ata_uninit(void) 1048 { 1049 uma_zdestroy(ata_composite_zone); 1050 uma_zdestroy(ata_request_zone); 1051 } 1052 SYSUNINIT(ata_unregister, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_uninit, NULL); 1053