ata-all.c revision 126442
1/*- 2 * Copyright (c) 1998 - 2004 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: head/sys/dev/ata/ata-all.c 126442 2004-03-01 13:17:07Z sos $"); 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/endian.h> 38#include <sys/ctype.h> 39#include <sys/conf.h> 40#include <sys/bus.h> 41#include <sys/bio.h> 42#include <sys/malloc.h> 43#include <sys/sysctl.h> 44#include <sys/sema.h> 45#include <sys/taskqueue.h> 46#include <vm/uma.h> 47#include <machine/stdarg.h> 48#include <machine/resource.h> 49#include <machine/bus.h> 50#include <sys/rman.h> 51#ifdef __alpha__ 52#include <machine/md_var.h> 53#endif 54#include <geom/geom_disk.h> 55#include <dev/ata/ata-all.h> 56#include <dev/ata/ata-disk.h> 57#include <dev/ata/ata-raid.h> 58 59/* device structures */ 60static d_ioctl_t ata_ioctl; 61static struct cdevsw ata_cdevsw = { 62 .d_version = D_VERSION, 63 .d_flags = D_NEEDGIANT, 64 .d_ioctl = ata_ioctl, 65 .d_name = "ata", 66}; 67 68/* prototypes */ 69static void ata_shutdown(void *, int); 70static int ata_getparam(struct ata_device *, u_int8_t); 71static void ata_identify_devices(struct ata_channel *); 72static void ata_fail_requests(struct ata_channel *ch,struct ata_device *device); 73static void ata_boot_attach(void); 74static void bswap(int8_t *, int); 75static void btrim(int8_t *, int); 76static void bpack(int8_t *, int8_t *, int); 77static void ata_init(void); 78 79/* global vars */ 80MALLOC_DEFINE(M_ATA, "ATA generic", "ATA driver generic layer"); 81struct intr_config_hook *ata_delayed_attach = NULL; 82devclass_t ata_devclass; 83uma_zone_t ata_zone; 84int ata_wc = 1; 85 86/* local vars */ 87static int ata_dma = 1; 88static int atapi_dma = 0; 89 90/* sysctl vars */ 91SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters"); 92TUNABLE_INT("hw.ata.ata_dma", &ata_dma); 93SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RDTUN, &ata_dma, 0, 94 "ATA disk DMA mode control"); 95TUNABLE_INT("hw.ata.wc", &ata_wc); 96SYSCTL_INT(_hw_ata, OID_AUTO, wc, CTLFLAG_RDTUN, &ata_wc, 0, 97 "ATA disk write caching"); 98TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma); 99SYSCTL_INT(_hw_ata, OID_AUTO, atapi_dma, CTLFLAG_RDTUN, &atapi_dma, 0, 100 "ATAPI device DMA mode control"); 101 102/* 103 * newbus device interface related functions 104 */ 105int 106ata_probe(device_t dev) 107{ 108 struct ata_channel *ch; 109 110 if (!dev || !(ch = device_get_softc(dev))) 111 return ENXIO; 112 113 if (ch->r_irq) 114 return EEXIST; 115 116 /* initialize the softc basics */ 117 ata_generic_hw(ch); 118 ch->device[MASTER].channel = ch; 119 ch->device[MASTER].unit = ATA_MASTER; 120 ch->device[MASTER].mode = ATA_PIO; 121 ch->device[SLAVE].channel = ch; 122 ch->device[SLAVE].unit = ATA_SLAVE; 123 ch->device[SLAVE].mode = ATA_PIO; 124 ch->dev = dev; 125 ch->state = ATA_IDLE; 126 127 /* initialise device(s) on this channel */ 128 ch->locking(ch, ATA_LF_LOCK); 129 ch->hw.reset(ch); 130 ch->locking(ch, ATA_LF_UNLOCK); 131 return 0; 132} 133 134int 135ata_attach(device_t dev) 136{ 137 struct ata_channel *ch; 138 int error, rid; 139 140 if (!dev || !(ch = device_get_softc(dev))) 141 return ENXIO; 142 143 rid = ATA_IRQ_RID; 144 ch->r_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, 145 RF_SHAREABLE | RF_ACTIVE); 146 if (!ch->r_irq) { 147 ata_printf(ch, -1, "unable to allocate interrupt\n"); 148 return ENXIO; 149 } 150 if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, 151 ch->hw.interrupt, ch, &ch->ih))) { 152 ata_printf(ch, -1, "unable to setup interrupt\n"); 153 return error; 154 } 155 156 if (ch->dma) 157 ch->dma->alloc(ch); 158 159 /* initialize queue and associated lock */ 160 bzero(&ch->queue_mtx, sizeof(struct mtx)); 161 mtx_init(&ch->queue_mtx, "ATA queue lock", MTX_DEF, 0); 162 TAILQ_INIT(&ch->ata_queue); 163 164 /* do not attach devices if we are in early boot */ 165 if (ata_delayed_attach) 166 return 0; 167 168 ata_identify_devices(ch); 169 170 if (ch->device[MASTER].attach) 171 ch->device[MASTER].attach(&ch->device[MASTER]); 172 if (ch->device[SLAVE].attach) 173 ch->device[SLAVE].attach(&ch->device[SLAVE]); 174#ifdef DEV_ATAPICAM 175 atapi_cam_attach_bus(ch); 176#endif 177 return 0; 178} 179 180int 181ata_detach(device_t dev) 182{ 183 struct ata_channel *ch; 184 185 if (!dev || !(ch = device_get_softc(dev)) || !ch->r_irq) 186 return ENXIO; 187 188 /* detach devices on this channel */ 189 if (ch->device[MASTER].detach) 190 ch->device[MASTER].detach(&ch->device[MASTER]); 191 if (ch->device[SLAVE].detach) 192 ch->device[SLAVE].detach(&ch->device[SLAVE]); 193#ifdef DEV_ATAPICAM 194 atapi_cam_detach_bus(ch); 195#endif 196 197 /* fail outstanding requests on this channel */ 198 ata_fail_requests(ch, NULL); 199 200 /* flush cache and powerdown device */ 201 if (ch->device[MASTER].param) { 202 if (ch->device[MASTER].param->support.command2 & ATA_SUPPORT_FLUSHCACHE) 203 ata_controlcmd(&ch->device[MASTER], ATA_FLUSHCACHE, 0, 0, 0); 204 ata_controlcmd(&ch->device[MASTER], ATA_SLEEP, 0, 0, 0); 205 free(ch->device[MASTER].param, M_ATA); 206 ch->device[MASTER].param = NULL; 207 } 208 if (ch->device[SLAVE].param) { 209 if (ch->device[SLAVE].param->support.command2 & ATA_SUPPORT_FLUSHCACHE) 210 ata_controlcmd(&ch->device[SLAVE], ATA_FLUSHCACHE, 0, 0, 0); 211 ata_controlcmd(&ch->device[SLAVE], ATA_SLEEP, 0, 0, 0); 212 free(ch->device[SLAVE].param, M_ATA); 213 ch->device[SLAVE].param = NULL; 214 } 215 ch->device[MASTER].mode = ATA_PIO; 216 ch->device[SLAVE].mode = ATA_PIO; 217 ch->devices = 0; 218 219 if (ch->dma) 220 ch->dma->free(ch); 221 222 bus_teardown_intr(dev, ch->r_irq, ch->ih); 223 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 224 ch->r_irq = NULL; 225 mtx_destroy(&ch->queue_mtx); 226 return 0; 227} 228 229int 230ata_reinit(struct ata_channel *ch) 231{ 232 struct ata_request *request = ch->running; 233 int devices, misdev, newdev; 234 235 if (!ch->r_irq) 236 return ENXIO; 237 238 /* reset the HW */ 239 if (bootverbose) 240 ata_printf(ch, -1, "reiniting channel ..\n"); 241 ATA_FORCELOCK_CH(ch, ATA_CONTROL); 242 ch->flags |= ATA_IMMEDIATE_MODE; 243 ch->running = NULL; 244 devices = ch->devices; 245 ch->hw.reset(ch); 246 ATA_UNLOCK_CH(ch); 247 248 if (bootverbose) 249 ata_printf(ch, -1, "resetting done ..\n"); 250 251 /* detach what left the channel during reset */ 252 if ((misdev = devices & ~ch->devices)) { 253 if ((misdev & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) && 254 ch->device[MASTER].detach) { 255 if (request && (request->device == &ch->device[MASTER])) { 256 request->result = ENXIO; 257 if (request->callback) 258 (request->callback)(request); 259 else 260 sema_post(&request->done); 261 } 262 ch->device[MASTER].detach(&ch->device[MASTER]); 263 ata_fail_requests(ch, &ch->device[MASTER]); 264 free(ch->device[MASTER].param, M_ATA); 265 ch->device[MASTER].param = NULL; 266 } 267 if ((misdev & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) && 268 ch->device[SLAVE].detach) { 269 if (request && (request->device == &ch->device[SLAVE])) { 270 request->result = ENXIO; 271 if (request->callback) 272 (request->callback)(request); 273 else 274 sema_post(&request->done); 275 } 276 ch->device[SLAVE].detach(&ch->device[SLAVE]); 277 ata_fail_requests(ch, &ch->device[SLAVE]); 278 free(ch->device[SLAVE].param, M_ATA); 279 ch->device[SLAVE].param = NULL; 280 } 281 } 282 283 /* identify what is present on the channel now */ 284 ata_identify_devices(ch); 285 286 /* attach new devices that appeared during reset */ 287 if ((newdev = ~devices & ch->devices)) { 288 if ((newdev & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) && 289 ch->device[MASTER].attach) 290 ch->device[MASTER].attach(&ch->device[MASTER]); 291 if ((newdev & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) && 292 ch->device[SLAVE].attach) 293 ch->device[SLAVE].attach(&ch->device[SLAVE]); 294 } 295 296 /* restore device config and transfermode on devices */ 297 if (ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) { 298 if (ch->device[MASTER].config) 299 ch->device[MASTER].config(&ch->device[MASTER]); 300 ch->device[MASTER].setmode(&ch->device[MASTER],ch->device[MASTER].mode); 301 } 302 if (ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) { 303 if (ch->device[SLAVE].config) 304 ch->device[SLAVE].config(&ch->device[SLAVE]); 305 ch->device[SLAVE].setmode(&ch->device[SLAVE], ch->device[SLAVE].mode); 306 } 307 308#ifdef DEV_ATAPICAM 309 atapi_cam_reinit_bus(ch); 310#endif 311 312 if (bootverbose) 313 ata_printf(ch, -1, "device config done ..\n"); 314 ch->flags &= ~ATA_IMMEDIATE_MODE; 315 ata_start(ch); 316 return 0; 317} 318 319int 320ata_suspend(device_t dev) 321{ 322 struct ata_channel *ch; 323 324 if (!dev || !(ch = device_get_softc(dev))) 325 return ENXIO; 326 327 ch->locking(ch, ATA_LF_LOCK); 328 ATA_SLEEPLOCK_CH(ch, ATA_CONTROL); 329 return 0; 330} 331 332int 333ata_resume(device_t dev) 334{ 335 struct ata_channel *ch; 336 int error; 337 338 if (!dev || !(ch = device_get_softc(dev))) 339 return ENXIO; 340 341 ch->locking(ch, ATA_LF_LOCK); 342 error = ata_reinit(ch); 343 ch->locking(ch, ATA_LF_UNLOCK); 344 ata_start(ch); 345 return error; 346} 347 348static void 349ata_shutdown(void *arg, int howto) 350{ 351 struct ata_channel *ch; 352 int ctlr; 353 354 /* flush cache on all devices */ 355 for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) { 356 if (!(ch = devclass_get_softc(ata_devclass, ctlr))) 357 continue; 358 if (ch->device[MASTER].param && 359 ch->device[MASTER].param->support.command2 & ATA_SUPPORT_FLUSHCACHE) 360 ata_controlcmd(&ch->device[MASTER], ATA_FLUSHCACHE, 0, 0, 0); 361 if (ch->device[SLAVE].param && 362 ch->device[SLAVE].param->support.command2 & ATA_SUPPORT_FLUSHCACHE) 363 ata_controlcmd(&ch->device[SLAVE], ATA_FLUSHCACHE, 0, 0, 0); 364 } 365} 366 367/* 368 * device related interfaces 369 */ 370static int 371ata_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *td) 372{ 373 struct ata_cmd *iocmd = (struct ata_cmd *)addr; 374 device_t device = devclass_get_device(ata_devclass, iocmd->channel); 375 struct ata_channel *ch; 376 struct ata_device *atadev; 377 struct ata_request *request; 378 caddr_t buf; 379 int error = ENOTTY; 380 381 DROP_GIANT(); 382 switch (iocmd->cmd) { 383 case ATAGMAXCHANNEL: 384 iocmd->u.maxchan = devclass_get_maxunit(ata_devclass); 385 error = 0; 386 break; 387 388 case ATAGPARM: 389 if (!device || !(ch = device_get_softc(device))) { 390 error = ENXIO; 391 break; 392 } 393 iocmd->u.param.type[MASTER] = 394 ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER); 395 iocmd->u.param.type[SLAVE] = 396 ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE); 397 if (ch->device[MASTER].name) 398 strcpy(iocmd->u.param.name[MASTER], ch->device[MASTER].name); 399 if (ch->device[SLAVE].name) 400 strcpy(iocmd->u.param.name[SLAVE], ch->device[SLAVE].name); 401 if (ch->device[MASTER].param) 402 bcopy(ch->device[MASTER].param, &iocmd->u.param.params[MASTER], 403 sizeof(struct ata_params)); 404 if (ch->device[SLAVE].param) 405 bcopy(ch->device[SLAVE].param, &iocmd->u.param.params[SLAVE], 406 sizeof(struct ata_params)); 407 error = 0; 408 break; 409 410 case ATAGMODE: 411 if (!device || !(ch = device_get_softc(device))) { 412 error = ENXIO; 413 break; 414 } 415 iocmd->u.mode.mode[MASTER] = ch->device[MASTER].mode; 416 iocmd->u.mode.mode[SLAVE] = ch->device[SLAVE].mode; 417 error = 0; 418 break; 419 420 case ATASMODE: 421 if (!device || !(ch = device_get_softc(device))) { 422 error = ENXIO; 423 break; 424 } 425 if (iocmd->u.mode.mode[MASTER] >= 0 && ch->device[MASTER].param) 426 ch->device[MASTER].setmode(&ch->device[MASTER], 427 iocmd->u.mode.mode[MASTER]); 428 iocmd->u.mode.mode[MASTER] = ch->device[MASTER].mode; 429 if (iocmd->u.mode.mode[SLAVE] >= 0 && ch->device[SLAVE].param) 430 ch->device[SLAVE].setmode(&ch->device[SLAVE], 431 iocmd->u.mode.mode[SLAVE]); 432 iocmd->u.mode.mode[SLAVE] = ch->device[SLAVE].mode; 433 error = 0; 434 break; 435 436 case ATAREQUEST: 437 if (!device || !(ch = device_get_softc(device))) { 438 error = ENXIO; 439 break; 440 } 441 if (!(atadev = &ch->device[iocmd->device])) { 442 error = ENODEV; 443 break; 444 } 445 if (!(buf = malloc(iocmd->u.request.count, M_ATA, M_NOWAIT))) { 446 error = ENOMEM; 447 break; 448 } 449 if (!(request = ata_alloc_request())) { 450 error = ENOMEM; 451 free(buf, M_ATA); 452 break; 453 } 454 if (iocmd->u.request.flags & ATA_CMD_WRITE) { 455 error = copyin(iocmd->u.request.data, buf, iocmd->u.request.count); 456 if (error) { 457 free(buf, M_ATA); 458 ata_free_request(request); 459 break; 460 } 461 } 462 463 request->device = atadev; 464 465 if (iocmd->u.request.flags & ATA_CMD_ATAPI) { 466 request->flags = ATA_R_ATAPI; 467 bcopy(iocmd->u.request.u.atapi.ccb, request->u.atapi.ccb, 16); 468 } 469 else { 470 request->u.ata.command = iocmd->u.request.u.ata.command; 471 request->u.ata.feature = iocmd->u.request.u.ata.feature; 472 request->u.ata.lba = iocmd->u.request.u.ata.lba; 473 request->u.ata.count = iocmd->u.request.u.ata.count; 474 } 475 476 request->timeout = iocmd->u.request.timeout; 477 request->data = buf; 478 request->bytecount = iocmd->u.request.count; 479 request->transfersize = request->bytecount; 480 481 if (iocmd->u.request.flags & ATA_CMD_CONTROL) 482 request->flags |= ATA_R_CONTROL; 483 if (iocmd->u.request.flags & ATA_CMD_READ) 484 request->flags |= ATA_R_READ; 485 if (iocmd->u.request.flags & ATA_CMD_WRITE) 486 request->flags |= ATA_R_WRITE; 487 488 ata_queue_request(request); 489 490 if (request->result) 491 iocmd->u.request.error = request->result; 492 else { 493 if (iocmd->u.request.flags & ATA_CMD_READ) 494 error = copyout(buf, 495 iocmd->u.request.data, iocmd->u.request.count); 496 else 497 error = 0; 498 } 499 free(buf, M_ATA); 500 ata_free_request(request); 501 break; 502 503 case ATAREINIT: 504 if (!device || !(ch = device_get_softc(device))) 505 return ENXIO; 506 error = ata_reinit(ch); 507 ata_start(ch); 508 break; 509 510 case ATAATTACH: 511 if (!device) { 512 error = ENXIO; 513 break; 514 } 515 /* SOS should enable channel HW on controller XXX */ 516 error = ata_probe(device); 517 if (!error) 518 error = ata_attach(device); 519 break; 520 521 case ATADETACH: 522 if (!device) { 523 error = ENXIO; 524 break; 525 } 526 error = ata_detach(device); 527 /* SOS should disable channel HW on controller XXX */ 528 break; 529 530 531#ifdef DEV_ATARAID 532 case ATARAIDCREATE: 533 error = ata_raid_create(&iocmd->u.raid_setup); 534 break; 535 536 case ATARAIDDELETE: 537 error = ata_raid_delete(iocmd->channel); 538 break; 539 540 case ATARAIDSTATUS: 541 error = ata_raid_status(iocmd->channel, &iocmd->u.raid_status); 542 break; 543 544 case ATARAIDADDSPARE: 545 error = ata_raid_addspare(iocmd->channel, iocmd->u.raid_spare.disk); 546 break; 547 548 case ATARAIDREBUILD: 549 error = ata_raid_rebuild(iocmd->channel); 550 break; 551#endif 552 } 553 PICKUP_GIANT(); 554 return error; 555} 556 557/* 558 * device probe functions 559 */ 560static int 561ata_getparam(struct ata_device *atadev, u_int8_t command) 562{ 563 struct ata_request *request; 564 int error = ENOMEM; 565 566 if (!atadev->param) 567 atadev->param = malloc(sizeof(struct ata_params), M_ATA, M_NOWAIT); 568 if (atadev->param) { 569 request = ata_alloc_request(); 570 if (request) { 571 int retries = 2; 572 while (retries-- > 0) { 573 request->device = atadev; 574 request->timeout = 5; 575 request->retries = -1; 576 request->u.ata.command = command; 577 request->flags = (ATA_R_READ | ATA_R_IMMEDIATE); 578 request->data = (caddr_t)atadev->param; 579 request->bytecount = sizeof(struct ata_params); 580 request->transfersize = DEV_BSIZE; 581 ata_queue_request(request); 582 if (!(error = request->result)) 583 break; 584 } 585 ata_free_request(request); 586 } 587 if (!error && (isprint(atadev->param->model[0]) || 588 isprint(atadev->param->model[1]))) { 589 struct ata_params *atacap = atadev->param; 590#if BYTE_ORDER == BIG_ENDIAN 591 int16_t *ptr; 592 593 for (ptr = (int16_t *)atacap; 594 ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) { 595 *ptr = bswap16(*ptr); 596 } 597#endif 598 if (!((atacap->model[0] == 'N' && atacap->model[1] == 'E') || 599 (atacap->model[0] == 'F' && atacap->model[1] == 'X') || 600 (atacap->model[0] == 'P' && atacap->model[1] == 'i'))) 601 bswap(atacap->model, sizeof(atacap->model)); 602 btrim(atacap->model, sizeof(atacap->model)); 603 bpack(atacap->model, atacap->model, sizeof(atacap->model)); 604 bswap(atacap->revision, sizeof(atacap->revision)); 605 btrim(atacap->revision, sizeof(atacap->revision)); 606 bpack(atacap->revision, atacap->revision, sizeof(atacap->revision)); 607 bswap(atacap->serial, sizeof(atacap->serial)); 608 btrim(atacap->serial, sizeof(atacap->serial)); 609 bpack(atacap->serial, atacap->serial, sizeof(atacap->serial)); 610 if (bootverbose) 611 ata_prtdev(atadev, 612 "pio=0x%02x wdma=0x%02x udma=0x%02x cable=%spin\n", 613 ata_pmode(atacap), ata_wmode(atacap), 614 ata_umode(atacap), 615 (atacap->hwres & ATA_CABLE_ID) ? "80":"40"); 616 } 617 else { 618 if (!error) 619 error = ENXIO; 620 if (atadev->param) { 621 free(atadev->param, M_ATA); 622 atadev->param = NULL; 623 } 624 } 625 } 626 return error; 627} 628 629static void 630ata_identify_devices(struct ata_channel *ch) 631{ 632 if (ch->devices & ATA_ATA_SLAVE) { 633 if (ata_getparam(&ch->device[SLAVE], ATA_ATA_IDENTIFY)) 634 ch->devices &= ~ATA_ATA_SLAVE; 635#ifdef DEV_ATADISK 636 else 637 ch->device[SLAVE].attach = ad_attach; 638#endif 639 } 640 if (ch->devices & ATA_ATAPI_SLAVE) { 641 if (ata_getparam(&ch->device[SLAVE], ATA_ATAPI_IDENTIFY)) 642 ch->devices &= ~ATA_ATAPI_SLAVE; 643 else { 644 switch (ch->device[SLAVE].param->config & ATA_ATAPI_TYPE_MASK) { 645#ifdef DEV_ATAPICD 646 case ATA_ATAPI_TYPE_CDROM: 647 ch->device[SLAVE].attach = acd_attach; 648 break; 649#endif 650#ifdef DEV_ATAPIFD 651 case ATA_ATAPI_TYPE_DIRECT: 652 ch->device[SLAVE].attach = afd_attach; 653 break; 654#endif 655#ifdef DEV_ATAPIST 656 case ATA_ATAPI_TYPE_TAPE: 657 ch->device[SLAVE].attach = ast_attach; 658 break; 659#endif 660 } 661 } 662 } 663 if (ch->devices & ATA_ATA_MASTER) { 664 if (ata_getparam(&ch->device[MASTER], ATA_ATA_IDENTIFY)) 665 ch->devices &= ~ATA_ATA_MASTER; 666#ifdef DEV_ATADISK 667 else 668 ch->device[MASTER].attach = ad_attach; 669#endif 670 } 671 if (ch->devices & ATA_ATAPI_MASTER) { 672 if (ata_getparam(&ch->device[MASTER], ATA_ATAPI_IDENTIFY)) 673 ch->devices &= ~ATA_ATAPI_MASTER; 674 else { 675 switch (ch->device[MASTER].param->config & ATA_ATAPI_TYPE_MASK) { 676#ifdef DEV_ATAPICD 677 case ATA_ATAPI_TYPE_CDROM: 678 ch->device[MASTER].attach = acd_attach; 679 break; 680#endif 681#ifdef DEV_ATAPIFD 682 case ATA_ATAPI_TYPE_DIRECT: 683 ch->device[MASTER].attach = afd_attach; 684 break; 685#endif 686#ifdef DEV_ATAPIST 687 case ATA_ATAPI_TYPE_TAPE: 688 ch->device[MASTER].attach = ast_attach; 689 break; 690#endif 691 } 692 } 693 } 694 695 /* setup basic transfer mode by setting PIO mode and DMA if supported */ 696 if (ch->device[MASTER].attach) { 697 ch->device[MASTER].setmode(&ch->device[MASTER], ATA_PIO_MAX); 698 if ((((ch->devices & ATA_ATAPI_MASTER) && atapi_dma && 699 (ch->device[MASTER].param->config&ATA_DRQ_MASK) != ATA_DRQ_INTR)|| 700 ((ch->devices & ATA_ATA_MASTER) && ata_dma)) && ch->dma) 701 ch->device[MASTER].setmode(&ch->device[MASTER], ATA_DMA_MAX); 702 703 } 704 if (ch->device[SLAVE].attach) { 705 ch->device[SLAVE].setmode(&ch->device[SLAVE], ATA_PIO_MAX); 706 if ((((ch->devices & ATA_ATAPI_SLAVE) && atapi_dma && 707 (ch->device[SLAVE].param->config&ATA_DRQ_MASK) != ATA_DRQ_INTR) || 708 ((ch->devices & ATA_ATA_SLAVE) && ata_dma)) && ch->dma) 709 ch->device[SLAVE].setmode(&ch->device[SLAVE], ATA_DMA_MAX); 710 } 711} 712 713static void 714ata_fail_requests(struct ata_channel *ch, struct ata_device *device) 715{ 716 struct ata_request *request; 717 718 mtx_lock(&ch->queue_mtx); 719 while ((request = TAILQ_FIRST(&ch->ata_queue))) { 720 if (device == NULL || request->device == device) { 721 TAILQ_REMOVE(&ch->ata_queue, request, chain); 722 request->result = ENXIO; 723 mtx_unlock(&ch->queue_mtx); 724 ata_finish(request); 725 mtx_lock(&ch->queue_mtx); 726 } 727 } 728 mtx_unlock(&ch->queue_mtx); 729} 730 731static void 732ata_boot_attach(void) 733{ 734 struct ata_channel *ch; 735 int ctlr; 736 737 /* 738 * run through all ata devices and look for real ATA & ATAPI devices 739 * using the hints we found in the early probe, this avoids some of 740 * the delays probing of non-exsistent devices can cause. 741 */ 742 for (ctlr=0; ctlr<devclass_get_maxunit(ata_devclass); ctlr++) { 743 if (!(ch = devclass_get_softc(ata_devclass, ctlr))) 744 continue; 745 ata_identify_devices(ch); 746 if (ch->device[MASTER].attach) 747 ch->device[MASTER].attach(&ch->device[MASTER]); 748 if (ch->device[SLAVE].attach) 749 ch->device[SLAVE].attach(&ch->device[SLAVE]); 750#ifdef DEV_ATAPICAM 751 atapi_cam_attach_bus(ch); 752#endif 753 } 754#ifdef DEV_ATARAID 755 ata_raid_attach(); 756#endif 757 if (ata_delayed_attach) { 758 config_intrhook_disestablish(ata_delayed_attach); 759 free(ata_delayed_attach, M_TEMP); 760 ata_delayed_attach = NULL; 761 } 762} 763 764/* 765 * misc support functions 766 */ 767static void 768bswap(int8_t *buf, int len) 769{ 770 u_int16_t *ptr = (u_int16_t*)(buf + len); 771 772 while (--ptr >= (u_int16_t*)buf) 773 *ptr = ntohs(*ptr); 774} 775 776static void 777btrim(int8_t *buf, int len) 778{ 779 int8_t *ptr; 780 781 for (ptr = buf; ptr < buf+len; ++ptr) 782 if (!*ptr) 783 *ptr = ' '; 784 for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr) 785 *ptr = 0; 786} 787 788static void 789bpack(int8_t *src, int8_t *dst, int len) 790{ 791 int i, j, blank; 792 793 for (i = j = blank = 0 ; i < len; i++) { 794 if (blank && src[i] == ' ') continue; 795 if (blank && src[i] != ' ') { 796 dst[j++] = src[i]; 797 blank = 0; 798 continue; 799 } 800 if (src[i] == ' ') { 801 blank = 1; 802 if (i == 0) 803 continue; 804 } 805 dst[j++] = src[i]; 806 } 807 if (j < len) 808 dst[j] = 0x00; 809} 810 811int 812ata_printf(struct ata_channel *ch, int device, const char * fmt, ...) 813{ 814 va_list ap; 815 int ret; 816 817 if (device == -1) 818 ret = printf("ata%d: ", device_get_unit(ch->dev)); 819 else { 820 if (ch->device[ATA_DEV(device)].name) 821 ret = printf("%s: ", ch->device[ATA_DEV(device)].name); 822 else 823 ret = printf("ata%d-%s: ", device_get_unit(ch->dev), 824 (device == ATA_MASTER) ? "master" : "slave"); 825 } 826 va_start(ap, fmt); 827 ret += vprintf(fmt, ap); 828 va_end(ap); 829 return ret; 830} 831 832int 833ata_prtdev(struct ata_device *atadev, const char * fmt, ...) 834{ 835 va_list ap; 836 int ret; 837 838 if (atadev->name) 839 ret = printf("%s: ", atadev->name); 840 else 841 ret = printf("ata%d-%s: ", device_get_unit(atadev->channel->dev), 842 (atadev->unit == ATA_MASTER) ? "master" : "slave"); 843 va_start(ap, fmt); 844 ret += vprintf(fmt, ap); 845 va_end(ap); 846 return ret; 847} 848 849void 850ata_set_name(struct ata_device *atadev, char *name, int lun) 851{ 852 atadev->name = malloc(strlen(name) + 4, M_ATA, M_NOWAIT); 853 if (atadev->name) 854 sprintf(atadev->name, "%s%d", name, lun); 855} 856 857void 858ata_free_name(struct ata_device *atadev) 859{ 860 if (atadev->name) 861 free(atadev->name, M_ATA); 862 atadev->name = NULL; 863} 864 865int 866ata_get_lun(u_int32_t *map) 867{ 868 int lun = ffs(~*map) - 1; 869 870 *map |= (1 << lun); 871 return lun; 872} 873 874int 875ata_test_lun(u_int32_t *map, int lun) 876{ 877 return (*map & (1 << lun)); 878} 879 880void 881ata_free_lun(u_int32_t *map, int lun) 882{ 883 *map &= ~(1 << lun); 884} 885 886char * 887ata_mode2str(int mode) 888{ 889 switch (mode) { 890 case ATA_PIO: return "BIOSPIO"; 891 case ATA_PIO0: return "PIO0"; 892 case ATA_PIO1: return "PIO1"; 893 case ATA_PIO2: return "PIO2"; 894 case ATA_PIO3: return "PIO3"; 895 case ATA_PIO4: return "PIO4"; 896 case ATA_DMA: return "BIOSDMA"; 897 case ATA_WDMA0: return "WDMA0"; 898 case ATA_WDMA1: return "WDMA1"; 899 case ATA_WDMA2: return "WDMA2"; 900 case ATA_UDMA0: return "UDMA16"; 901 case ATA_UDMA1: return "UDMA25"; 902 case ATA_UDMA2: return "UDMA33"; 903 case ATA_UDMA3: return "UDMA40"; 904 case ATA_UDMA4: return "UDMA66"; 905 case ATA_UDMA5: return "UDMA100"; 906 case ATA_UDMA6: return "UDMA133"; 907 case ATA_SA150: return "SATA150"; 908 default: return "???"; 909 } 910} 911 912int 913ata_pmode(struct ata_params *ap) 914{ 915 if (ap->atavalid & ATA_FLAG_64_70) { 916 if (ap->apiomodes & 0x02) 917 return ATA_PIO4; 918 if (ap->apiomodes & 0x01) 919 return ATA_PIO3; 920 } 921 if (ap->mwdmamodes & 0x04) 922 return ATA_PIO4; 923 if (ap->mwdmamodes & 0x02) 924 return ATA_PIO3; 925 if (ap->mwdmamodes & 0x01) 926 return ATA_PIO2; 927 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200) 928 return ATA_PIO2; 929 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100) 930 return ATA_PIO1; 931 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000) 932 return ATA_PIO0; 933 return ATA_PIO0; 934} 935 936int 937ata_wmode(struct ata_params *ap) 938{ 939 if (ap->mwdmamodes & 0x04) 940 return ATA_WDMA2; 941 if (ap->mwdmamodes & 0x02) 942 return ATA_WDMA1; 943 if (ap->mwdmamodes & 0x01) 944 return ATA_WDMA0; 945 return -1; 946} 947 948int 949ata_umode(struct ata_params *ap) 950{ 951 if (ap->atavalid & ATA_FLAG_88) { 952 if (ap->udmamodes & 0x40) 953 return ATA_UDMA6; 954 if (ap->udmamodes & 0x20) 955 return ATA_UDMA5; 956 if (ap->udmamodes & 0x10) 957 return ATA_UDMA4; 958 if (ap->udmamodes & 0x08) 959 return ATA_UDMA3; 960 if (ap->udmamodes & 0x04) 961 return ATA_UDMA2; 962 if (ap->udmamodes & 0x02) 963 return ATA_UDMA1; 964 if (ap->udmamodes & 0x01) 965 return ATA_UDMA0; 966 } 967 return -1; 968} 969 970int 971ata_limit_mode(struct ata_device *atadev, int mode, int maxmode) 972{ 973 if (maxmode && mode > maxmode) 974 mode = maxmode; 975 976 if (mode >= ATA_UDMA0 && ata_umode(atadev->param) > 0) 977 return min(mode, ata_umode(atadev->param)); 978 979 if (mode >= ATA_WDMA0 && ata_wmode(atadev->param) > 0) 980 return min(mode, ata_wmode(atadev->param)); 981 982 if (mode > ata_pmode(atadev->param)) 983 return min(mode, ata_pmode(atadev->param)); 984 985 return mode; 986} 987 988static void 989ata_init(void) 990{ 991 /* register controlling device */ 992 make_dev(&ata_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, "ata"); 993 994 /* register boot attach to be run when interrupts are enabled */ 995 if (!(ata_delayed_attach = (struct intr_config_hook *) 996 malloc(sizeof(struct intr_config_hook), 997 M_TEMP, M_NOWAIT | M_ZERO))) { 998 printf("ata: malloc of delayed attach hook failed\n"); 999 return; 1000 } 1001 ata_delayed_attach->ich_func = (void*)ata_boot_attach; 1002 if (config_intrhook_establish(ata_delayed_attach) != 0) { 1003 printf("ata: config_intrhook_establish failed\n"); 1004 free(ata_delayed_attach, M_TEMP); 1005 } 1006 1007 /* register handler to flush write caches on shutdown */ 1008 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, ata_shutdown, 1009 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 1010 printf("ata: shutdown event registration failed!\n"); 1011 1012 /* init our UMA zone for ATA requests */ 1013 ata_zone = uma_zcreate("ata_request", sizeof(struct ata_request), 1014 NULL, NULL, NULL, NULL, 0, 0); 1015} 1016SYSINIT(atadev, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL) 1017