ata-all.c revision 132030
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 132030 2004-07-12 10:50:50Z 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_boot_attach(void); 73static void bswap(int8_t *, int); 74static void btrim(int8_t *, int); 75static void bpack(int8_t *, int8_t *, int); 76static void ata_init(void); 77 78/* global vars */ 79MALLOC_DEFINE(M_ATA, "ATA generic", "ATA driver generic layer"); 80struct intr_config_hook *ata_delayed_attach = NULL; 81devclass_t ata_devclass; 82uma_zone_t ata_zone; 83int ata_wc = 1; 84 85/* local vars */ 86static int ata_dma = 1; 87static int atapi_dma = 0; 88 89/* sysctl vars */ 90SYSCTL_NODE(_hw, OID_AUTO, ata, CTLFLAG_RD, 0, "ATA driver parameters"); 91TUNABLE_INT("hw.ata.ata_dma", &ata_dma); 92SYSCTL_INT(_hw_ata, OID_AUTO, ata_dma, CTLFLAG_RDTUN, &ata_dma, 0, 93 "ATA disk DMA mode control"); 94TUNABLE_INT("hw.ata.wc", &ata_wc); 95SYSCTL_INT(_hw_ata, OID_AUTO, wc, CTLFLAG_RDTUN, &ata_wc, 0, 96 "ATA disk write caching"); 97TUNABLE_INT("hw.ata.atapi_dma", &atapi_dma); 98SYSCTL_INT(_hw_ata, OID_AUTO, atapi_dma, CTLFLAG_RDTUN, &atapi_dma, 0, 99 "ATAPI device DMA mode control"); 100 101/* 102 * newbus device interface related functions 103 */ 104int 105ata_probe(device_t dev) 106{ 107 struct ata_channel *ch; 108 109 if (!dev || !(ch = device_get_softc(dev))) 110 return ENXIO; 111 112 if (ch->r_irq) 113 return EEXIST; 114 115 /* initialize the softc basics */ 116 ch->device[MASTER].channel = ch; 117 ch->device[MASTER].unit = ATA_MASTER; 118 ch->device[MASTER].mode = ATA_PIO; 119 ch->device[SLAVE].channel = ch; 120 ch->device[SLAVE].unit = ATA_SLAVE; 121 ch->device[SLAVE].mode = ATA_PIO; 122 ch->dev = dev; 123 ch->lock = ATA_IDLE; 124 125 /* initialise device(s) on this channel */ 126 ch->locking(ch, ATA_LF_LOCK); 127 ch->hw.reset(ch); 128 ch->locking(ch, ATA_LF_UNLOCK); 129 return 0; 130} 131 132int 133ata_attach(device_t dev) 134{ 135 struct ata_channel *ch; 136 int error, rid; 137 138 if (!dev || !(ch = device_get_softc(dev))) 139 return ENXIO; 140 141 rid = ATA_IRQ_RID; 142 ch->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 143 RF_SHAREABLE | RF_ACTIVE); 144 if (!ch->r_irq) { 145 ata_printf(ch, -1, "unable to allocate interrupt\n"); 146 return ENXIO; 147 } 148 if ((error = bus_setup_intr(dev, ch->r_irq, ATA_INTR_FLAGS, 149 ch->hw.interrupt, ch, &ch->ih))) { 150 ata_printf(ch, -1, "unable to setup interrupt\n"); 151 return error; 152 } 153 154 if (ch->dma) 155 ch->dma->alloc(ch); 156 157 /* initialize queue and associated lock */ 158 bzero(&ch->queue_mtx, sizeof(struct mtx)); 159 mtx_init(&ch->queue_mtx, "ATA queue lock", NULL, MTX_DEF); 160 TAILQ_INIT(&ch->ata_queue); 161 162 /* do not attach devices if we are in early boot */ 163 if (ata_delayed_attach) 164 return 0; 165 166 ata_identify_devices(ch); 167 168 if (ch->device[MASTER].attach) 169 ch->device[MASTER].attach(&ch->device[MASTER]); 170 if (ch->device[SLAVE].attach) 171 ch->device[SLAVE].attach(&ch->device[SLAVE]); 172#ifdef DEV_ATAPICAM 173 atapi_cam_attach_bus(ch); 174#endif 175 return 0; 176} 177 178int 179ata_detach(device_t dev) 180{ 181 struct ata_channel *ch; 182 183 if (!dev || !(ch = device_get_softc(dev)) || !ch->r_irq) 184 return ENXIO; 185 186 /* mark devices on this channel as detaching */ 187 ch->device[MASTER].flags |= ATA_D_DETACHING; 188 ch->device[SLAVE].flags |= ATA_D_DETACHING; 189 190 /* fail outstanding requests on this channel */ 191 ata_fail_requests(ch, NULL); 192 193 /* detach devices on this channel */ 194 if (ch->device[MASTER].detach) 195 ch->device[MASTER].detach(&ch->device[MASTER]); 196 if (ch->device[SLAVE].detach) 197 ch->device[SLAVE].detach(&ch->device[SLAVE]); 198#ifdef DEV_ATAPICAM 199 atapi_cam_detach_bus(ch); 200#endif 201 202 /* flush cache and powerdown device */ 203 if (ch->device[MASTER].param) { 204 if (ch->device[MASTER].param->support.command2 & ATA_SUPPORT_FLUSHCACHE) 205 ata_controlcmd(&ch->device[MASTER], ATA_FLUSHCACHE, 0, 0, 0); 206 ata_controlcmd(&ch->device[MASTER], ATA_SLEEP, 0, 0, 0); 207 free(ch->device[MASTER].param, M_ATA); 208 ch->device[MASTER].param = NULL; 209 } 210 if (ch->device[SLAVE].param) { 211 if (ch->device[SLAVE].param->support.command2 & ATA_SUPPORT_FLUSHCACHE) 212 ata_controlcmd(&ch->device[SLAVE], ATA_FLUSHCACHE, 0, 0, 0); 213 ata_controlcmd(&ch->device[SLAVE], ATA_SLEEP, 0, 0, 0); 214 free(ch->device[SLAVE].param, M_ATA); 215 ch->device[SLAVE].param = NULL; 216 } 217 ch->device[MASTER].mode = ATA_PIO; 218 ch->device[SLAVE].mode = ATA_PIO; 219 ch->devices = 0; 220 221 if (ch->dma) 222 ch->dma->free(ch); 223 224 bus_teardown_intr(dev, ch->r_irq, ch->ih); 225 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ch->r_irq); 226 ch->r_irq = NULL; 227 mtx_destroy(&ch->queue_mtx); 228 return 0; 229} 230 231int 232ata_reinit(struct ata_channel *ch) 233{ 234 struct ata_request *request = ch->running; 235 int devices, misdev, newdev; 236 237 if (!ch->r_irq) 238 return ENXIO; 239 240 /* reset the HW */ 241 if (bootverbose) 242 ata_printf(ch, -1, "reiniting channel ..\n"); 243 ATA_FORCELOCK_CH(ch); 244 ch->flags |= ATA_IMMEDIATE_MODE; 245 ch->running = NULL; 246 devices = ch->devices; 247 ch->hw.reset(ch); 248 ATA_UNLOCK_CH(ch); 249 250 if (bootverbose) 251 ata_printf(ch, -1, "resetting done ..\n"); 252 253 /* detach what left the channel during reset */ 254 if ((misdev = devices & ~ch->devices)) { 255 if ((misdev & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) && 256 ch->device[MASTER].detach) { 257 if (request && (request->device == &ch->device[MASTER])) { 258 request->result = ENXIO; 259 request->retries = 0; 260 } 261 ch->device[MASTER].detach(&ch->device[MASTER]); 262 ata_fail_requests(ch, &ch->device[MASTER]); 263 free(ch->device[MASTER].param, M_ATA); 264 ch->device[MASTER].param = NULL; 265 } 266 if ((misdev & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) && 267 ch->device[SLAVE].detach) { 268 if (request && (request->device == &ch->device[SLAVE])) { 269 request->result = ENXIO; 270 request->retries = 0; 271 } 272 ch->device[SLAVE].detach(&ch->device[SLAVE]); 273 ata_fail_requests(ch, &ch->device[SLAVE]); 274 free(ch->device[SLAVE].param, M_ATA); 275 ch->device[SLAVE].param = NULL; 276 } 277 } 278 279 /* identify what is present on the channel now */ 280 ata_identify_devices(ch); 281 282 /* attach new devices that appeared during reset */ 283 if ((newdev = ~devices & ch->devices)) { 284 if ((newdev & (ATA_ATA_MASTER | ATA_ATAPI_MASTER)) && 285 ch->device[MASTER].attach) 286 ch->device[MASTER].attach(&ch->device[MASTER]); 287 if ((newdev & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE)) && 288 ch->device[SLAVE].attach) 289 ch->device[SLAVE].attach(&ch->device[SLAVE]); 290 } 291 292#ifdef DEV_ATAPICAM 293 atapi_cam_reinit_bus(ch); 294#endif 295 296 if (bootverbose) 297 ata_printf(ch, -1, "device config done ..\n"); 298 ch->flags &= ~ATA_IMMEDIATE_MODE; 299 ata_start(ch); 300 return 0; 301} 302 303int 304ata_suspend(device_t dev) 305{ 306 struct ata_channel *ch; 307 308 if (!dev || !(ch = device_get_softc(dev))) 309 return ENXIO; 310 ch->locking(ch, ATA_LF_LOCK); 311 ATA_SLEEPLOCK_CH(ch); 312 return 0; 313} 314 315int 316ata_resume(device_t dev) 317{ 318 struct ata_channel *ch; 319 int error; 320 321 if (!dev || !(ch = device_get_softc(dev))) 322 return ENXIO; 323 324 ch->locking(ch, ATA_LF_LOCK); 325 error = ata_reinit(ch); 326 ch->locking(ch, ATA_LF_UNLOCK); 327 ata_start(ch); 328 return error; 329} 330 331static void 332ata_shutdown(void *arg, int howto) 333{ 334 struct ata_channel *ch; 335 int ctlr; 336 337 /* flush cache on all devices */ 338 for (ctlr = 0; ctlr < devclass_get_maxunit(ata_devclass); ctlr++) { 339 if (!(ch = devclass_get_softc(ata_devclass, ctlr))) 340 continue; 341 if (ch->device[MASTER].param && 342 ch->device[MASTER].param->support.command2 & ATA_SUPPORT_FLUSHCACHE) 343 ata_controlcmd(&ch->device[MASTER], ATA_FLUSHCACHE, 0, 0, 0); 344 if (ch->device[SLAVE].param && 345 ch->device[SLAVE].param->support.command2 & ATA_SUPPORT_FLUSHCACHE) 346 ata_controlcmd(&ch->device[SLAVE], ATA_FLUSHCACHE, 0, 0, 0); 347 } 348} 349 350/* 351 * device related interfaces 352 */ 353static int 354ata_ioctl(struct cdev *dev, u_long cmd, caddr_t addr, int32_t flag, struct thread *td) 355{ 356 struct ata_cmd *iocmd = (struct ata_cmd *)addr; 357 device_t device = devclass_get_device(ata_devclass, iocmd->channel); 358 struct ata_channel *ch; 359 struct ata_device *atadev; 360 struct ata_request *request; 361 caddr_t buf; 362 int error = ENOTTY; 363 364 DROP_GIANT(); 365 switch (iocmd->cmd) { 366 case ATAGMAXCHANNEL: 367 iocmd->u.maxchan = devclass_get_maxunit(ata_devclass); 368 error = 0; 369 break; 370 371 case ATAGPARM: 372 if (!device || !(ch = device_get_softc(device))) { 373 error = ENXIO; 374 break; 375 } 376 iocmd->u.param.type[MASTER] = 377 ch->devices & (ATA_ATA_MASTER | ATA_ATAPI_MASTER); 378 iocmd->u.param.type[SLAVE] = 379 ch->devices & (ATA_ATA_SLAVE | ATA_ATAPI_SLAVE); 380 if (ch->device[MASTER].name) 381 strcpy(iocmd->u.param.name[MASTER], ch->device[MASTER].name); 382 if (ch->device[SLAVE].name) 383 strcpy(iocmd->u.param.name[SLAVE], ch->device[SLAVE].name); 384 if (ch->device[MASTER].param) 385 bcopy(ch->device[MASTER].param, &iocmd->u.param.params[MASTER], 386 sizeof(struct ata_params)); 387 if (ch->device[SLAVE].param) 388 bcopy(ch->device[SLAVE].param, &iocmd->u.param.params[SLAVE], 389 sizeof(struct ata_params)); 390 error = 0; 391 break; 392 393 case ATAGMODE: 394 if (!device || !(ch = device_get_softc(device))) { 395 error = ENXIO; 396 break; 397 } 398 iocmd->u.mode.mode[MASTER] = ch->device[MASTER].mode; 399 iocmd->u.mode.mode[SLAVE] = ch->device[SLAVE].mode; 400 error = 0; 401 break; 402 403 case ATASMODE: 404 if (!device || !(ch = device_get_softc(device))) { 405 error = ENXIO; 406 break; 407 } 408 if (iocmd->u.mode.mode[MASTER] >= 0 && ch->device[MASTER].param) 409 ch->device[MASTER].setmode(&ch->device[MASTER], 410 iocmd->u.mode.mode[MASTER]); 411 iocmd->u.mode.mode[MASTER] = ch->device[MASTER].mode; 412 if (iocmd->u.mode.mode[SLAVE] >= 0 && ch->device[SLAVE].param) 413 ch->device[SLAVE].setmode(&ch->device[SLAVE], 414 iocmd->u.mode.mode[SLAVE]); 415 iocmd->u.mode.mode[SLAVE] = ch->device[SLAVE].mode; 416 error = 0; 417 break; 418 419 case ATAREQUEST: 420 if (!device || !(ch = device_get_softc(device))) { 421 error = ENXIO; 422 break; 423 } 424 if (!(atadev = &ch->device[iocmd->device])) { 425 error = ENODEV; 426 break; 427 } 428 if (!(buf = malloc(iocmd->u.request.count, M_ATA, M_NOWAIT))) { 429 error = ENOMEM; 430 break; 431 } 432 if (!(request = ata_alloc_request())) { 433 error = ENOMEM; 434 free(buf, M_ATA); 435 break; 436 } 437 if (iocmd->u.request.flags & ATA_CMD_WRITE) { 438 error = copyin(iocmd->u.request.data, buf, iocmd->u.request.count); 439 if (error) { 440 free(buf, M_ATA); 441 ata_free_request(request); 442 break; 443 } 444 } 445 446 request->device = atadev; 447 448 if (iocmd->u.request.flags & ATA_CMD_ATAPI) { 449 request->flags = ATA_R_ATAPI; 450 bcopy(iocmd->u.request.u.atapi.ccb, request->u.atapi.ccb, 16); 451 } 452 else { 453 request->u.ata.command = iocmd->u.request.u.ata.command; 454 request->u.ata.feature = iocmd->u.request.u.ata.feature; 455 request->u.ata.lba = iocmd->u.request.u.ata.lba; 456 request->u.ata.count = iocmd->u.request.u.ata.count; 457 } 458 459 request->timeout = iocmd->u.request.timeout; 460 request->data = buf; 461 request->bytecount = iocmd->u.request.count; 462 request->transfersize = request->bytecount; 463 464 if (iocmd->u.request.flags & ATA_CMD_CONTROL) 465 request->flags |= ATA_R_CONTROL; 466 if (iocmd->u.request.flags & ATA_CMD_READ) 467 request->flags |= ATA_R_READ; 468 if (iocmd->u.request.flags & ATA_CMD_WRITE) 469 request->flags |= ATA_R_WRITE; 470 471 ata_queue_request(request); 472 473 if (request->result) 474 iocmd->u.request.error = request->result; 475 else { 476 if (iocmd->u.request.flags & ATA_CMD_READ) 477 error = copyout(buf, 478 iocmd->u.request.data, iocmd->u.request.count); 479 else 480 error = 0; 481 } 482 free(buf, M_ATA); 483 ata_free_request(request); 484 break; 485 486 case ATAREINIT: 487 if (!device || !(ch = device_get_softc(device))) 488 return ENXIO; 489 error = ata_reinit(ch); 490 ata_start(ch); 491 break; 492 493 case ATAATTACH: 494 if (!device) { 495 error = ENXIO; 496 break; 497 } 498 /* SOS should enable channel HW on controller XXX */ 499 error = ata_probe(device); 500 if (!error) 501 error = ata_attach(device); 502 break; 503 504 case ATADETACH: 505 if (!device) { 506 error = ENXIO; 507 break; 508 } 509 error = ata_detach(device); 510 /* SOS should disable channel HW on controller XXX */ 511 break; 512 513 514#ifdef DEV_ATARAID 515 case ATARAIDCREATE: 516 error = ata_raid_create(&iocmd->u.raid_setup); 517 break; 518 519 case ATARAIDDELETE: 520 error = ata_raid_delete(iocmd->channel); 521 break; 522 523 case ATARAIDSTATUS: 524 error = ata_raid_status(iocmd->channel, &iocmd->u.raid_status); 525 break; 526 527 case ATARAIDADDSPARE: 528 error = ata_raid_addspare(iocmd->channel, iocmd->u.raid_spare.disk); 529 break; 530 531 case ATARAIDREBUILD: 532 error = ata_raid_rebuild(iocmd->channel); 533 break; 534#endif 535 } 536 PICKUP_GIANT(); 537 return error; 538} 539 540/* 541 * device probe functions 542 */ 543static int 544ata_getparam(struct ata_device *atadev, u_int8_t command) 545{ 546 struct ata_request *request; 547 int error = ENOMEM; 548 549 if (!atadev->param) 550 atadev->param = malloc(sizeof(struct ata_params), M_ATA, M_NOWAIT); 551 if (atadev->param) { 552 request = ata_alloc_request(); 553 if (request) { 554 int retries = 2; 555 while (retries-- > 0) { 556 request->device = atadev; 557 request->timeout = 5; 558 request->retries = -1; 559 request->u.ata.command = command; 560 request->flags = (ATA_R_READ | ATA_R_IMMEDIATE); 561 request->data = (caddr_t)atadev->param; 562 request->bytecount = sizeof(struct ata_params); 563 request->transfersize = DEV_BSIZE; 564 ata_queue_request(request); 565 if (!(error = request->result)) 566 break; 567 } 568 ata_free_request(request); 569 } 570 if (!error && (isprint(atadev->param->model[0]) || 571 isprint(atadev->param->model[1]))) { 572 struct ata_params *atacap = atadev->param; 573#if BYTE_ORDER == BIG_ENDIAN 574 int16_t *ptr; 575 576 for (ptr = (int16_t *)atacap; 577 ptr < (int16_t *)atacap + sizeof(struct ata_params)/2; ptr++) { 578 *ptr = bswap16(*ptr); 579 } 580#endif 581 if (!((atacap->model[0] == 'N' && atacap->model[1] == 'E') || 582 (atacap->model[0] == 'F' && atacap->model[1] == 'X') || 583 (atacap->model[0] == 'P' && atacap->model[1] == 'i'))) 584 bswap(atacap->model, sizeof(atacap->model)); 585 btrim(atacap->model, sizeof(atacap->model)); 586 bpack(atacap->model, atacap->model, sizeof(atacap->model)); 587 bswap(atacap->revision, sizeof(atacap->revision)); 588 btrim(atacap->revision, sizeof(atacap->revision)); 589 bpack(atacap->revision, atacap->revision, sizeof(atacap->revision)); 590 bswap(atacap->serial, sizeof(atacap->serial)); 591 btrim(atacap->serial, sizeof(atacap->serial)); 592 bpack(atacap->serial, atacap->serial, sizeof(atacap->serial)); 593 if (bootverbose) 594 ata_prtdev(atadev, 595 "pio=0x%02x wdma=0x%02x udma=0x%02x cable=%spin\n", 596 ata_pmode(atacap), ata_wmode(atacap), 597 ata_umode(atacap), 598 (atacap->hwres & ATA_CABLE_ID) ? "80":"40"); 599 } 600 else { 601 if (!error) 602 error = ENXIO; 603 if (atadev->param) { 604 free(atadev->param, M_ATA); 605 atadev->param = NULL; 606 } 607 } 608 } 609 return error; 610} 611 612static void 613ata_identify_devices(struct ata_channel *ch) 614{ 615 if (ch->devices & ATA_ATA_SLAVE) { 616 if (ata_getparam(&ch->device[SLAVE], ATA_ATA_IDENTIFY)) 617 ch->devices &= ~ATA_ATA_SLAVE; 618#ifdef DEV_ATADISK 619 else 620 ch->device[SLAVE].attach = ad_attach; 621#endif 622 } 623 if (ch->devices & ATA_ATAPI_SLAVE) { 624 if (ata_getparam(&ch->device[SLAVE], ATA_ATAPI_IDENTIFY)) 625 ch->devices &= ~ATA_ATAPI_SLAVE; 626 else { 627 ata_controlcmd(&ch->device[SLAVE], ATA_ATAPI_RESET, 0, 0, 0); 628 switch (ch->device[SLAVE].param->config & ATA_ATAPI_TYPE_MASK) { 629#ifdef DEV_ATAPICD 630 case ATA_ATAPI_TYPE_CDROM: 631 ch->device[SLAVE].attach = acd_attach; 632 break; 633#endif 634#ifdef DEV_ATAPIFD 635 case ATA_ATAPI_TYPE_DIRECT: 636 ch->device[SLAVE].attach = afd_attach; 637 break; 638#endif 639#ifdef DEV_ATAPIST 640 case ATA_ATAPI_TYPE_TAPE: 641 ch->device[SLAVE].attach = ast_attach; 642 break; 643#endif 644 } 645 } 646 } 647 if (ch->devices & ATA_ATA_MASTER) { 648 if (ata_getparam(&ch->device[MASTER], ATA_ATA_IDENTIFY)) 649 ch->devices &= ~ATA_ATA_MASTER; 650#ifdef DEV_ATADISK 651 else 652 ch->device[MASTER].attach = ad_attach; 653#endif 654 } 655 if (ch->devices & ATA_ATAPI_MASTER) { 656 if (ata_getparam(&ch->device[MASTER], ATA_ATAPI_IDENTIFY)) 657 ch->devices &= ~ATA_ATAPI_MASTER; 658 else { 659 ata_controlcmd(&ch->device[MASTER], ATA_ATAPI_RESET, 0, 0, 0); 660 switch (ch->device[MASTER].param->config & ATA_ATAPI_TYPE_MASK) { 661#ifdef DEV_ATAPICD 662 case ATA_ATAPI_TYPE_CDROM: 663 ch->device[MASTER].attach = acd_attach; 664 break; 665#endif 666#ifdef DEV_ATAPIFD 667 case ATA_ATAPI_TYPE_DIRECT: 668 ch->device[MASTER].attach = afd_attach; 669 break; 670#endif 671#ifdef DEV_ATAPIST 672 case ATA_ATAPI_TYPE_TAPE: 673 ch->device[MASTER].attach = ast_attach; 674 break; 675#endif 676 } 677 } 678 } 679 680 /* setup basic transfer mode by setting PIO mode and DMA if supported */ 681 if (ch->device[MASTER].param) { 682 ch->device[MASTER].setmode(&ch->device[MASTER], ATA_PIO_MAX); 683 if ((((ch->devices & ATA_ATAPI_MASTER) && atapi_dma && 684 (ch->device[MASTER].param->config&ATA_DRQ_MASK) != ATA_DRQ_INTR)|| 685 ((ch->devices & ATA_ATA_MASTER) && ata_dma)) && ch->dma) 686 ch->device[MASTER].setmode(&ch->device[MASTER], ATA_DMA_MAX); 687 688 } 689 if (ch->device[SLAVE].param) { 690 ch->device[SLAVE].setmode(&ch->device[SLAVE], ATA_PIO_MAX); 691 if ((((ch->devices & ATA_ATAPI_SLAVE) && atapi_dma && 692 (ch->device[SLAVE].param->config&ATA_DRQ_MASK) != ATA_DRQ_INTR) || 693 ((ch->devices & ATA_ATA_SLAVE) && ata_dma)) && ch->dma) 694 ch->device[SLAVE].setmode(&ch->device[SLAVE], ATA_DMA_MAX); 695 } 696} 697 698static void 699ata_boot_attach(void) 700{ 701 struct ata_channel *ch; 702 int ctlr; 703 704 /* 705 * run through all ata devices and look for real ATA & ATAPI devices 706 * using the hints we found in the early probe, this avoids some of 707 * the delays probing of non-exsistent devices can cause. 708 */ 709 for (ctlr=0; ctlr<devclass_get_maxunit(ata_devclass); ctlr++) { 710 if (!(ch = devclass_get_softc(ata_devclass, ctlr))) 711 continue; 712 ata_identify_devices(ch); 713 if (ch->device[MASTER].attach) 714 ch->device[MASTER].attach(&ch->device[MASTER]); 715 if (ch->device[SLAVE].attach) 716 ch->device[SLAVE].attach(&ch->device[SLAVE]); 717#ifdef DEV_ATAPICAM 718 atapi_cam_attach_bus(ch); 719#endif 720 } 721#ifdef DEV_ATARAID 722 ata_raid_attach(); 723#endif 724 if (ata_delayed_attach) { 725 config_intrhook_disestablish(ata_delayed_attach); 726 free(ata_delayed_attach, M_TEMP); 727 ata_delayed_attach = NULL; 728 } 729} 730 731/* 732 * misc support functions 733 */ 734static void 735bswap(int8_t *buf, int len) 736{ 737 u_int16_t *ptr = (u_int16_t*)(buf + len); 738 739 while (--ptr >= (u_int16_t*)buf) 740 *ptr = ntohs(*ptr); 741} 742 743static void 744btrim(int8_t *buf, int len) 745{ 746 int8_t *ptr; 747 748 for (ptr = buf; ptr < buf+len; ++ptr) 749 if (!*ptr) 750 *ptr = ' '; 751 for (ptr = buf + len - 1; ptr >= buf && *ptr == ' '; --ptr) 752 *ptr = 0; 753} 754 755static void 756bpack(int8_t *src, int8_t *dst, int len) 757{ 758 int i, j, blank; 759 760 for (i = j = blank = 0 ; i < len; i++) { 761 if (blank && src[i] == ' ') continue; 762 if (blank && src[i] != ' ') { 763 dst[j++] = src[i]; 764 blank = 0; 765 continue; 766 } 767 if (src[i] == ' ') { 768 blank = 1; 769 if (i == 0) 770 continue; 771 } 772 dst[j++] = src[i]; 773 } 774 if (j < len) 775 dst[j] = 0x00; 776} 777 778int 779ata_printf(struct ata_channel *ch, int device, const char * fmt, ...) 780{ 781 va_list ap; 782 int ret; 783 784 if (device == -1) 785 ret = printf("ata%d: ", device_get_unit(ch->dev)); 786 else { 787 if (ch->device[ATA_DEV(device)].name) 788 ret = printf("%s: ", ch->device[ATA_DEV(device)].name); 789 else 790 ret = printf("ata%d-%s: ", device_get_unit(ch->dev), 791 (device == ATA_MASTER) ? "master" : "slave"); 792 } 793 va_start(ap, fmt); 794 ret += vprintf(fmt, ap); 795 va_end(ap); 796 return ret; 797} 798 799int 800ata_prtdev(struct ata_device *atadev, const char * fmt, ...) 801{ 802 va_list ap; 803 int ret; 804 805 if (atadev->name) 806 ret = printf("%s: ", atadev->name); 807 else 808 ret = printf("ata%d-%s: ", device_get_unit(atadev->channel->dev), 809 (atadev->unit == ATA_MASTER) ? "master" : "slave"); 810 va_start(ap, fmt); 811 ret += vprintf(fmt, ap); 812 va_end(ap); 813 return ret; 814} 815 816void 817ata_set_name(struct ata_device *atadev, char *name, int lun) 818{ 819 atadev->name = malloc(strlen(name) + 4, M_ATA, M_NOWAIT); 820 if (atadev->name) 821 sprintf(atadev->name, "%s%d", name, lun); 822} 823 824void 825ata_free_name(struct ata_device *atadev) 826{ 827 if (atadev->name) 828 free(atadev->name, M_ATA); 829 atadev->name = NULL; 830} 831 832int 833ata_get_lun(u_int32_t *map) 834{ 835 int lun = ffs(~*map) - 1; 836 837 *map |= (1 << lun); 838 return lun; 839} 840 841int 842ata_test_lun(u_int32_t *map, int lun) 843{ 844 return (*map & (1 << lun)); 845} 846 847void 848ata_free_lun(u_int32_t *map, int lun) 849{ 850 *map &= ~(1 << lun); 851} 852 853char * 854ata_mode2str(int mode) 855{ 856 switch (mode) { 857 case ATA_PIO: return "BIOSPIO"; 858 case ATA_PIO0: return "PIO0"; 859 case ATA_PIO1: return "PIO1"; 860 case ATA_PIO2: return "PIO2"; 861 case ATA_PIO3: return "PIO3"; 862 case ATA_PIO4: return "PIO4"; 863 case ATA_DMA: return "BIOSDMA"; 864 case ATA_WDMA0: return "WDMA0"; 865 case ATA_WDMA1: return "WDMA1"; 866 case ATA_WDMA2: return "WDMA2"; 867 case ATA_UDMA0: return "UDMA16"; 868 case ATA_UDMA1: return "UDMA25"; 869 case ATA_UDMA2: return "UDMA33"; 870 case ATA_UDMA3: return "UDMA40"; 871 case ATA_UDMA4: return "UDMA66"; 872 case ATA_UDMA5: return "UDMA100"; 873 case ATA_UDMA6: return "UDMA133"; 874 case ATA_SA150: return "SATA150"; 875 default: return "???"; 876 } 877} 878 879int 880ata_pmode(struct ata_params *ap) 881{ 882 if (ap->atavalid & ATA_FLAG_64_70) { 883 if (ap->apiomodes & 0x02) 884 return ATA_PIO4; 885 if (ap->apiomodes & 0x01) 886 return ATA_PIO3; 887 } 888 if (ap->mwdmamodes & 0x04) 889 return ATA_PIO4; 890 if (ap->mwdmamodes & 0x02) 891 return ATA_PIO3; 892 if (ap->mwdmamodes & 0x01) 893 return ATA_PIO2; 894 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x200) 895 return ATA_PIO2; 896 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x100) 897 return ATA_PIO1; 898 if ((ap->retired_piomode & ATA_RETIRED_PIO_MASK) == 0x000) 899 return ATA_PIO0; 900 return ATA_PIO0; 901} 902 903int 904ata_wmode(struct ata_params *ap) 905{ 906 if (ap->mwdmamodes & 0x04) 907 return ATA_WDMA2; 908 if (ap->mwdmamodes & 0x02) 909 return ATA_WDMA1; 910 if (ap->mwdmamodes & 0x01) 911 return ATA_WDMA0; 912 return -1; 913} 914 915int 916ata_umode(struct ata_params *ap) 917{ 918 if (ap->atavalid & ATA_FLAG_88) { 919 if (ap->udmamodes & 0x40) 920 return ATA_UDMA6; 921 if (ap->udmamodes & 0x20) 922 return ATA_UDMA5; 923 if (ap->udmamodes & 0x10) 924 return ATA_UDMA4; 925 if (ap->udmamodes & 0x08) 926 return ATA_UDMA3; 927 if (ap->udmamodes & 0x04) 928 return ATA_UDMA2; 929 if (ap->udmamodes & 0x02) 930 return ATA_UDMA1; 931 if (ap->udmamodes & 0x01) 932 return ATA_UDMA0; 933 } 934 return -1; 935} 936 937int 938ata_limit_mode(struct ata_device *atadev, int mode, int maxmode) 939{ 940 if (maxmode && mode > maxmode) 941 mode = maxmode; 942 943 if (mode >= ATA_UDMA0 && ata_umode(atadev->param) > 0) 944 return min(mode, ata_umode(atadev->param)); 945 946 if (mode >= ATA_WDMA0 && ata_wmode(atadev->param) > 0) 947 return min(mode, ata_wmode(atadev->param)); 948 949 if (mode > ata_pmode(atadev->param)) 950 return min(mode, ata_pmode(atadev->param)); 951 952 return mode; 953} 954 955static void 956ata_init(void) 957{ 958 /* register controlling device */ 959 make_dev(&ata_cdevsw, 0, UID_ROOT, GID_OPERATOR, 0600, "ata"); 960 961 /* register boot attach to be run when interrupts are enabled */ 962 if (!(ata_delayed_attach = (struct intr_config_hook *) 963 malloc(sizeof(struct intr_config_hook), 964 M_TEMP, M_NOWAIT | M_ZERO))) { 965 printf("ata: malloc of delayed attach hook failed\n"); 966 return; 967 } 968 ata_delayed_attach->ich_func = (void*)ata_boot_attach; 969 if (config_intrhook_establish(ata_delayed_attach) != 0) { 970 printf("ata: config_intrhook_establish failed\n"); 971 free(ata_delayed_attach, M_TEMP); 972 } 973 974 /* register handler to flush write caches on shutdown */ 975 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, ata_shutdown, 976 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 977 printf("ata: shutdown event registration failed!\n"); 978 979 /* init our UMA zone for ATA requests */ 980 ata_zone = uma_zcreate("ata_request", sizeof(struct ata_request), 981 NULL, NULL, NULL, NULL, 0, 0); 982} 983SYSINIT(atadev, SI_SUB_DRIVERS, SI_ORDER_SECOND, ata_init, NULL) 984