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/kernel.h> 36 #include <sys/module.h> 37 #include <sys/ata.h> 38 #include <sys/bus.h> 39 #include <sys/malloc.h> 40 #include <sys/sema.h> 41 #include <sys/taskqueue.h> 42 #include <vm/uma.h> 43 #include <machine/stdarg.h> 44 #include <machine/resource.h> 45 #include <machine/bus.h> 46 #ifdef __alpha__ 47 #include <machine/md_var.h> 48 #endif 49 #include <sys/rman.h> 50 #include <dev/pci/pcivar.h> 51 #include <dev/pci/pcireg.h> 52 #include <dev/ata/ata-all.h> 53 #include <dev/ata/ata-pci.h> 54 #include <ata_if.h> 55 56 /* local vars */ 57 static MALLOC_DEFINE(M_ATAPCI, "ata_pci", "ATA driver PCI"); 58 59 /* misc defines */ 60 #define IOMASK 0xfffffffc 61 #define ATA_PROBE_OK -10 62 63 /* prototypes */ 64 static void ata_pci_dmainit(device_t); 65 66 int 67 ata_legacy(device_t dev) 68 { 69 return ((pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV) && 70 ((pci_read_config(dev, PCIR_PROGIF, 1) & 71 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) != 72 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))); 73 } 74 75 int 76 ata_pci_probe(device_t dev) 77 { 78 if (pci_get_class(dev) != PCIC_STORAGE) 79 return ENXIO; 80 81 switch (pci_get_vendor(dev)) { 82 case ATA_ACARD_ID: 83 if (!ata_acard_ident(dev)) 84 return ATA_PROBE_OK; 85 break; 86 case ATA_ACER_LABS_ID: 87 if (!ata_ali_ident(dev)) 88 return ATA_PROBE_OK; 89 break; 90 case ATA_AMD_ID: 91 if (!ata_amd_ident(dev)) 92 return ATA_PROBE_OK; 93 break; 94 case ATA_ATI_ID: 95 if (!ata_ati_ident(dev)) 96 return ATA_PROBE_OK; 97 break; 98 case ATA_CYRIX_ID: 99 if (!ata_cyrix_ident(dev)) 100 return ATA_PROBE_OK; 101 break; 102 case ATA_CYPRESS_ID: 103 if (!ata_cypress_ident(dev)) 104 return ATA_PROBE_OK; 105 break; 106 case ATA_HIGHPOINT_ID: 107 if (!ata_highpoint_ident(dev)) 108 return ATA_PROBE_OK; 109 break; 110 case ATA_INTEL_ID: 111 if (!ata_intel_ident(dev)) 112 return ATA_PROBE_OK; 113 break; 114 case ATA_ITE_ID: 115 if (!ata_ite_ident(dev)) 116 return ATA_PROBE_OK; 117 break; 118 case ATA_MARVELL_ID: 119 if (!ata_marvell_ident(dev)) 120 return ATA_PROBE_OK; 121 break; 122 case ATA_NATIONAL_ID: 123 if (!ata_national_ident(dev)) 124 return ATA_PROBE_OK; 125 break; 126 case ATA_NVIDIA_ID: 127 if (!ata_nvidia_ident(dev)) 128 return ATA_PROBE_OK; 129 break; 130 case ATA_PROMISE_ID: 131 if (!ata_promise_ident(dev)) 132 return ATA_PROBE_OK; 133 break; 134 case ATA_SERVERWORKS_ID: 135 if (!ata_serverworks_ident(dev)) 136 return ATA_PROBE_OK; 137 break; 138 case ATA_SILICON_IMAGE_ID: 139 if (!ata_sii_ident(dev)) 140 return ATA_PROBE_OK; 141 break; 142 case ATA_SIS_ID: 143 if (!ata_sis_ident(dev)) 144 return ATA_PROBE_OK; 145 break; 146 case ATA_VIA_ID: 147 if (!ata_via_ident(dev)) 148 return ATA_PROBE_OK; 149 break; 150 case ATA_CENATEK_ID: 151 if (pci_get_devid(dev) == ATA_CENATEK_ROCKET) { 152 ata_generic_ident(dev); 153 device_set_desc(dev, "Cenatek Rocket Drive controller"); 154 return ATA_PROBE_OK; 155 } 156 break; 157 case ATA_MICRON_ID: 158 if (pci_get_devid(dev) == ATA_MICRON_RZ1000 || 159 pci_get_devid(dev) == ATA_MICRON_RZ1001) { 160 ata_generic_ident(dev); 161 device_set_desc(dev, 162 "RZ 100? ATA controller !WARNING! data loss/corruption risk"); 163 return ATA_PROBE_OK; 164 } 165 break; 166 } 167 168 /* unknown chipset, try generic DMA if it seems possible */ 169 if ((pci_get_class(dev) == PCIC_STORAGE) && 170 (pci_get_subclass(dev) == PCIS_STORAGE_IDE)) { 171 if (!ata_generic_ident(dev)) 172 return ATA_PROBE_OK; 173 } 174 return ENXIO; 175 } 176 177 int 178 ata_pci_attach(device_t dev) 179 { 180 struct ata_pci_controller *ctlr = device_get_softc(dev); 181 u_int32_t cmd; 182 int unit; 183 184 /* do chipset specific setups only needed once */ 185 if (ata_legacy(dev) || pci_read_config(dev, PCIR_BAR(2), 4) & IOMASK) 186 ctlr->channels = 2; 187 else 188 ctlr->channels = 1; 189 ctlr->allocate = ata_pci_allocate; 190 ctlr->dmainit = ata_pci_dmainit; 191 ctlr->dev = dev; 192 193 /* if needed try to enable busmastering */ 194 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 195 if (!(cmd & PCIM_CMD_BUSMASTEREN)) { 196 pci_write_config(dev, PCIR_COMMAND, cmd | PCIM_CMD_BUSMASTEREN, 2); 197 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 198 } 199 200 /* if busmastering mode "stuck" use it */ 201 if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) { 202 ctlr->r_type1 = SYS_RES_IOPORT; 203 ctlr->r_rid1 = ATA_BMADDR_RID; 204 ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1, &ctlr->r_rid1, 205 RF_ACTIVE); 206 } 207 208 ctlr->chipinit(dev); 209 210 /* attach all channels on this controller */ 211 for (unit = 0; unit < ctlr->channels; unit++) { 212 if (unit == 0 && (pci_get_progif(dev) & 0x81) == 0x80) { 213 device_add_child(dev, "ata", unit); 214 continue; 215 } 216 if (unit == 1 && (pci_get_progif(dev) & 0x84) == 0x80) { 217 device_add_child(dev, "ata", unit); 218 continue; 219 } 220 device_add_child(dev, "ata", devclass_find_free_unit(ata_devclass, 2)); 221 } 222 bus_generic_attach(dev); 223 return 0; 224 } 225 226 int 227 ata_pci_detach(device_t dev) 228 { 229 struct ata_pci_controller *ctlr = device_get_softc(dev); 230 device_t *children; 231 int nchildren, i; 232 233 /* detach & delete all children */ 234 if (!device_get_children(dev, &children, &nchildren)) { 235 for (i = 0; i < nchildren; i++) 236 device_delete_child(dev, children[i]); 237 free(children, M_TEMP); 238 } 239 240 if (ctlr->r_irq) { 241 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle); 242 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ctlr->r_irq); 243 } 244 if (ctlr->r_res2) 245 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2); 246 if (ctlr->r_res1) 247 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1); 248 249 return 0; 250 } 251 252 struct resource * 253 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, 254 u_long start, u_long end, u_long count, u_int flags) 255 { 256 struct ata_pci_controller *controller = device_get_softc(dev); 257 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 258 struct resource *res = NULL; 259 int myrid; 260 261 if (type == SYS_RES_IOPORT) { 262 switch (*rid) { 263 case ATA_IOADDR_RID: 264 if (ata_legacy(dev)) { 265 start = (unit ? ATA_SECONDARY : ATA_PRIMARY); 266 count = ATA_IOSIZE; 267 end = start + count - 1; 268 } 269 myrid = PCIR_BAR(0) + (unit << 3); 270 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 271 SYS_RES_IOPORT, &myrid, 272 start, end, count, flags); 273 break; 274 275 case ATA_CTLADDR_RID: 276 if (ata_legacy(dev)) { 277 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) + ATA_CTLOFFSET; 278 count = ATA_CTLIOSIZE; 279 end = start + count - 1; 280 } 281 myrid = PCIR_BAR(1) + (unit << 3); 282 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 283 SYS_RES_IOPORT, &myrid, 284 start, end, count, flags); 285 break; 286 } 287 } 288 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) { 289 if (ata_legacy(dev)) { 290 #ifdef __alpha__ 291 res = alpha_platform_alloc_ide_intr(unit); 292 #else 293 int irq = (unit == 0 ? 14 : 15); 294 295 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 296 SYS_RES_IRQ, rid, irq, irq, 1, flags); 297 #endif 298 } 299 else 300 res = controller->r_irq; 301 } 302 return res; 303 } 304 305 int 306 ata_pci_release_resource(device_t dev, device_t child, int type, int rid, 307 struct resource *r) 308 { 309 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 310 311 if (type == SYS_RES_IOPORT) { 312 switch (rid) { 313 case ATA_IOADDR_RID: 314 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 315 SYS_RES_IOPORT, 316 PCIR_BAR(0) + (unit << 3), r); 317 break; 318 319 case ATA_CTLADDR_RID: 320 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 321 SYS_RES_IOPORT, 322 PCIR_BAR(1) + (unit << 3), r); 323 break; 324 default: 325 return ENOENT; 326 } 327 } 328 if (type == SYS_RES_IRQ) { 329 if (rid != ATA_IRQ_RID) 330 return ENOENT; 331 332 if (ata_legacy(dev)) { 333 #ifdef __alpha__ 334 return alpha_platform_release_ide_intr(unit, r); 335 #else 336 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 337 SYS_RES_IRQ, rid, r); 338 #endif 339 } 340 else 341 return 0; 342 } 343 return EINVAL; 344 } 345 346 int 347 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 348 int flags, driver_intr_t *function, void *argument, 349 void **cookiep) 350 { 351 if (ata_legacy(dev)) { 352 #ifdef __alpha__ 353 return alpha_platform_setup_ide_intr(child, irq, function, argument, 354 cookiep); 355 #else 356 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 357 flags, function, argument, cookiep); 358 #endif 359 } 360 else { 361 struct ata_pci_controller *controller = device_get_softc(dev); 362 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 363 364 controller->interrupt[unit].function = function; 365 controller->interrupt[unit].argument = argument; 366 *cookiep = controller; 367 return 0; 368 } 369 } 370 371 int 372 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 373 void *cookie) 374 { 375 if (ata_legacy(dev)) { 376 #ifdef __alpha__ 377 return alpha_platform_teardown_ide_intr(child, irq, cookie); 378 #else 379 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 380 #endif 381 } 382 else { 383 struct ata_pci_controller *controller = device_get_softc(dev); 384 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 385 386 controller->interrupt[unit].function = NULL; 387 controller->interrupt[unit].argument = NULL; 388 return 0; 389 } 390 } 391 392 int 393 ata_pci_allocate(device_t dev) 394 { 395 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 396 struct ata_channel *ch = device_get_softc(dev); 397 struct resource *io = NULL, *ctlio = NULL; 398 int i, rid; 399 400 rid = ATA_IOADDR_RID; 401 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 402 return ENXIO; 403 404 rid = ATA_CTLADDR_RID; 405 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 406 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 407 return ENXIO; 408 } 409 410 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 411 ch->r_io[i].res = io; 412 ch->r_io[i].offset = i; 413 } 414 ch->r_io[ATA_CONTROL].res = ctlio; 415 ch->r_io[ATA_CONTROL].offset = ata_legacy(device_get_parent(dev)) ? 0 : 2; 416 ch->r_io[ATA_IDX_ADDR].res = io; 417 ata_default_registers(dev); 418 if (ctlr->r_res1) { 419 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 420 ch->r_io[i].res = ctlr->r_res1; 421 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE); 422 } 423 } 424 425 ata_generic_hw(dev); 426 return 0; 427 } 428 429 static int 430 ata_pci_dmastart(device_t dev) 431 { 432 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 433 434 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 435 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 436 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, ch->dma->sg_bus); 437 ch->dma->flags |= ATA_DMA_ACTIVE; 438 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 439 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) | 440 ((ch->dma->flags & ATA_DMA_READ) ? ATA_BMCMD_WRITE_READ : 0) | 441 ATA_BMCMD_START_STOP); 442 return 0; 443 } 444 445 static int 446 ata_pci_dmastop(device_t dev) 447 { 448 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 449 int error; 450 451 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 452 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 453 ch->dma->flags &= ~ATA_DMA_ACTIVE; 454 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 455 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 456 return error; 457 } 458 459 static void 460 ata_pci_dmareset(device_t dev) 461 { 462 struct ata_channel *ch = device_get_softc(dev); 463 464 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 465 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 466 ch->dma->flags &= ~ATA_DMA_ACTIVE; 467 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 468 ch->dma->unload(dev); 469 } 470 471 static void 472 ata_pci_dmainit(device_t dev) 473 { 474 struct ata_channel *ch = device_get_softc(dev); 475 476 ata_dmainit(dev); 477 if (ch->dma) { 478 ch->dma->start = ata_pci_dmastart; 479 ch->dma->stop = ata_pci_dmastop; 480 ch->dma->reset = ata_pci_dmareset; 481 } 482 } 483 484 static device_method_t ata_pci_methods[] = { 485 /* device interface */ 486 DEVMETHOD(device_probe, ata_pci_probe), 487 DEVMETHOD(device_attach, ata_pci_attach), 488 DEVMETHOD(device_detach, ata_pci_detach), 489 DEVMETHOD(device_shutdown, bus_generic_shutdown), 490 DEVMETHOD(device_suspend, bus_generic_suspend), 491 DEVMETHOD(device_resume, bus_generic_resume), 492 493 /* bus methods */ 494 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource), 495 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 496 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 497 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 498 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 499 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 500 501 { 0, 0 } 502 }; 503 504 devclass_t atapci_devclass; 505 506 static driver_t ata_pci_driver = { 507 "atapci", 508 ata_pci_methods, 509 sizeof(struct ata_pci_controller), 510 }; 511 512 DRIVER_MODULE(atapci, pci, ata_pci_driver, atapci_devclass, 0, 0); 513 MODULE_VERSION(atapci, 1); 514 MODULE_DEPEND(atapci, ata, 1, 1, 1); 515 516 static int 517 ata_pcichannel_probe(device_t dev) 518 { 519 struct ata_channel *ch = device_get_softc(dev); 520 device_t *children; 521 int count, i; 522 char buffer[32]; 523 524 /* take care of green memory */ 525 bzero(ch, sizeof(struct ata_channel)); 526 527 /* find channel number on this controller */ 528 device_get_children(device_get_parent(dev), &children, &count); 529 for (i = 0; i < count; i++) { 530 if (children[i] == dev) 531 ch->unit = i; 532 } 533 free(children, M_TEMP); 534 535 sprintf(buffer, "ATA channel %d", ch->unit); 536 device_set_desc_copy(dev, buffer); 537 538 return ata_probe(dev); 539 } 540 541 static int 542 ata_pcichannel_attach(device_t dev) 543 { 544 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 545 struct ata_channel *ch = device_get_softc(dev); 546 int error; 547 548 if (ctlr->dmainit) 549 ctlr->dmainit(dev); 550 if (ch->dma) 551 ch->dma->alloc(dev); 552 553 if ((error = ctlr->allocate(dev))) 554 return error; 555 556 return ata_attach(dev); 557 } 558 559 static int 560 ata_pcichannel_detach(device_t dev) 561 { 562 struct ata_channel *ch = device_get_softc(dev); 563 int error; 564 565 if ((error = ata_detach(dev))) 566 return error; 567 568 if (ch->dma) 569 ch->dma->free(dev); 570 571 /* XXX SOS free resources for io and ctlio ?? */ 572 573 return 0; 574 } 575 576 static int 577 ata_pcichannel_locking(device_t dev, int mode) 578 { 579 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 580 struct ata_channel *ch = device_get_softc(dev); 581 582 if (ctlr->locking) 583 return ctlr->locking(dev, mode); 584 else 585 return ch->unit; 586 } 587 588 static void 589 ata_pcichannel_reset(device_t dev) 590 { 591 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 592 struct ata_channel *ch = device_get_softc(dev); 593 594 /* if DMA engine present reset it */ 595 if (ch->dma) { 596 if (ch->dma->reset) 597 ch->dma->reset(dev); 598 ch->dma->unload(dev); 599 } 600 601 /* reset the controller HW */ 602 if (ctlr->reset) 603 ctlr->reset(dev); 604 else 605 ata_generic_reset(dev); 606 } 607 608 static void 609 ata_pcichannel_setmode(device_t parent, device_t dev) 610 { 611 struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev)); 612 struct ata_device *atadev = device_get_softc(dev); 613 int mode = atadev->mode; 614 615 ctlr->setmode(dev, ATA_PIO_MAX); 616 if (mode >= ATA_DMA) 617 ctlr->setmode(dev, mode); 618 } 619 620 static device_method_t ata_pcichannel_methods[] = { 621 /* device interface */ 622 DEVMETHOD(device_probe, ata_pcichannel_probe), 623 DEVMETHOD(device_attach, ata_pcichannel_attach), 624 DEVMETHOD(device_detach, ata_pcichannel_detach), 625 DEVMETHOD(device_shutdown, bus_generic_shutdown), 626 DEVMETHOD(device_suspend, ata_suspend), 627 DEVMETHOD(device_resume, ata_resume), 628 629 /* ATA methods */ 630 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 631 DEVMETHOD(ata_locking, ata_pcichannel_locking), 632 DEVMETHOD(ata_reset, ata_pcichannel_reset), 633 634 { 0, 0 } 635 }; 636 637 driver_t ata_pcichannel_driver = { 638 "ata", 639 ata_pcichannel_methods, 640 sizeof(struct ata_channel), 641 }; 642 643 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, 0, 0); 644