1 /*- 2 * Copyright (c) 1998 - 2007 S�ren Schmidt <sos@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include "opt_ata.h" 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/kernel.h> 34 #include <sys/module.h> 35 #include <sys/ata.h> 36 #include <sys/bus.h> 37 #include <sys/conf.h> 38 #include <sys/malloc.h> 39 #include <sys/sema.h> 40 #include <sys/taskqueue.h> 41 #include <vm/uma.h> 42 #include <machine/stdarg.h> 43 #include <machine/resource.h> 44 #include <machine/bus.h> 45 #include <sys/rman.h> 46 #include <dev/pci/pcivar.h> 47 #include <dev/pci/pcireg.h> 48 #include <dev/ata/ata-all.h> 49 #include <dev/ata/ata-pci.h> 50 #include <ata_if.h> 51 52 /* local vars */ 53 static MALLOC_DEFINE(M_ATAPCI, "ata_pci", "ATA driver PCI"); 54 55 /* misc defines */ 56 #define IOMASK 0xfffffffc 57 #define ATA_PROBE_OK -10 58 59 int 60 ata_legacy(device_t dev) 61 { 62 return (((pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV)&& 63 ((pci_read_config(dev, PCIR_PROGIF, 1) & 64 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) != 65 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))) || 66 (!pci_read_config(dev, PCIR_BAR(0), 4) && 67 !pci_read_config(dev, PCIR_BAR(1), 4) && 68 !pci_read_config(dev, PCIR_BAR(2), 4) && 69 !pci_read_config(dev, PCIR_BAR(3), 4))); 70 } 71 72 int 73 ata_pci_probe(device_t dev) 74 { 75 if (pci_get_class(dev) != PCIC_STORAGE) 76 return ENXIO; 77 78 switch (pci_get_vendor(dev)) { 79 case ATA_ACARD_ID: 80 if (!ata_acard_ident(dev)) 81 return ATA_PROBE_OK; 82 break; 83 case ATA_ACER_LABS_ID: 84 if (!ata_ali_ident(dev)) 85 return ATA_PROBE_OK; 86 break; 87 case ATA_AMD_ID: 88 if (!ata_amd_ident(dev)) 89 return ATA_PROBE_OK; 90 break; 91 case ATA_ATI_ID: 92 if (!ata_ati_ident(dev)) 93 return ATA_PROBE_OK; 94 break; 95 case ATA_CYRIX_ID: 96 if (!ata_cyrix_ident(dev)) 97 return ATA_PROBE_OK; 98 break; 99 case ATA_CYPRESS_ID: 100 if (!ata_cypress_ident(dev)) 101 return ATA_PROBE_OK; 102 break; 103 case ATA_HIGHPOINT_ID: 104 if (!ata_highpoint_ident(dev)) 105 return ATA_PROBE_OK; 106 break; 107 case ATA_INTEL_ID: 108 if (!ata_intel_ident(dev)) 109 return ATA_PROBE_OK; 110 break; 111 case ATA_ITE_ID: 112 if (!ata_ite_ident(dev)) 113 return ATA_PROBE_OK; 114 break; 115 case ATA_JMICRON_ID: 116 if (!ata_jmicron_ident(dev)) 117 return ATA_PROBE_OK; 118 break; 119 case ATA_MARVELL_ID: 120 if (!ata_marvell_ident(dev)) 121 return ATA_PROBE_OK; 122 break; 123 case ATA_NATIONAL_ID: 124 if (!ata_national_ident(dev)) 125 return ATA_PROBE_OK; 126 break; 127 case ATA_NETCELL_ID: 128 if (!ata_netcell_ident(dev)) 129 return ATA_PROBE_OK; 130 break; 131 case ATA_NVIDIA_ID: 132 if (!ata_nvidia_ident(dev)) 133 return ATA_PROBE_OK; 134 break; 135 case ATA_PROMISE_ID: 136 if (!ata_promise_ident(dev)) 137 return ATA_PROBE_OK; 138 break; 139 case ATA_SERVERWORKS_ID: 140 if (!ata_serverworks_ident(dev)) 141 return ATA_PROBE_OK; 142 break; 143 case ATA_SILICON_IMAGE_ID: 144 if (!ata_sii_ident(dev)) 145 return ATA_PROBE_OK; 146 break; 147 case ATA_SIS_ID: 148 if (!ata_sis_ident(dev)) 149 return ATA_PROBE_OK; 150 break; 151 case ATA_VIA_ID: 152 if (!ata_via_ident(dev)) 153 return ATA_PROBE_OK; 154 break; 155 case ATA_CENATEK_ID: 156 if (pci_get_devid(dev) == ATA_CENATEK_ROCKET) { 157 ata_generic_ident(dev); 158 device_set_desc(dev, "Cenatek Rocket Drive controller"); 159 return ATA_PROBE_OK; 160 } 161 break; 162 case ATA_MICRON_ID: 163 if (pci_get_devid(dev) == ATA_MICRON_RZ1000 || 164 pci_get_devid(dev) == ATA_MICRON_RZ1001) { 165 ata_generic_ident(dev); 166 device_set_desc(dev, 167 "RZ 100? ATA controller !WARNING! data loss/corruption risk"); 168 return ATA_PROBE_OK; 169 } 170 break; 171 } 172 173 /* unknown chipset, try generic DMA if it seems possible */ 174 if ((pci_get_class(dev) == PCIC_STORAGE) && 175 (pci_get_subclass(dev) == PCIS_STORAGE_IDE)) { 176 if (!ata_generic_ident(dev)) 177 return ATA_PROBE_OK; 178 } 179 return ENXIO; 180 } 181 182 int 183 ata_pci_attach(device_t dev) 184 { 185 struct ata_pci_controller *ctlr = device_get_softc(dev); 186 u_int32_t cmd; 187 int unit; 188 189 /* do chipset specific setups only needed once */ 190 if (ata_legacy(dev) || pci_read_config(dev, PCIR_BAR(2), 4) & IOMASK) 191 ctlr->channels = 2; 192 else 193 ctlr->channels = 1; 194 ctlr->allocate = ata_pci_allocate; 195 ctlr->dmainit = ata_pci_dmainit; 196 ctlr->dev = dev; 197 198 /* if needed try to enable busmastering */ 199 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 200 if (!(cmd & PCIM_CMD_BUSMASTEREN)) { 201 pci_write_config(dev, PCIR_COMMAND, cmd | PCIM_CMD_BUSMASTEREN, 2); 202 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 203 } 204 205 /* if busmastering mode "stuck" use it */ 206 if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) { 207 ctlr->r_type1 = SYS_RES_IOPORT; 208 ctlr->r_rid1 = ATA_BMADDR_RID; 209 ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1, &ctlr->r_rid1, 210 RF_ACTIVE); 211 } 212 213 if (ctlr->chipinit(dev)) 214 return ENXIO; 215 216 /* attach all channels on this controller */ 217 for (unit = 0; unit < ctlr->channels; unit++) { 218 if ((unit == 0 || unit == 1) && ata_legacy(dev)) { 219 device_add_child(dev, "ata", unit); 220 continue; 221 } 222 device_add_child(dev, "ata", devclass_find_free_unit(ata_devclass, 2)); 223 } 224 bus_generic_attach(dev); 225 return 0; 226 } 227 228 int 229 ata_pci_detach(device_t dev) 230 { 231 struct ata_pci_controller *ctlr = device_get_softc(dev); 232 device_t *children; 233 int nchildren, i; 234 235 /* detach & delete all children */ 236 if (!device_get_children(dev, &children, &nchildren)) { 237 for (i = 0; i < nchildren; i++) 238 device_delete_child(dev, children[i]); 239 free(children, M_TEMP); 240 } 241 242 if (ctlr->r_irq) { 243 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle); 244 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ctlr->r_irq); 245 } 246 if (ctlr->r_res2) 247 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2); 248 if (ctlr->r_res1) 249 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1); 250 251 return 0; 252 } 253 254 struct resource * 255 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, 256 u_long start, u_long end, u_long count, u_int flags) 257 { 258 struct ata_pci_controller *controller = device_get_softc(dev); 259 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 260 struct resource *res = NULL; 261 int myrid; 262 263 if (type == SYS_RES_IOPORT) { 264 switch (*rid) { 265 case ATA_IOADDR_RID: 266 if (ata_legacy(dev)) { 267 start = (unit ? ATA_SECONDARY : ATA_PRIMARY); 268 count = ATA_IOSIZE; 269 end = start + count - 1; 270 } 271 myrid = PCIR_BAR(0) + (unit << 3); 272 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 273 SYS_RES_IOPORT, &myrid, 274 start, end, count, flags); 275 break; 276 277 case ATA_CTLADDR_RID: 278 if (ata_legacy(dev)) { 279 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) + ATA_CTLOFFSET; 280 count = ATA_CTLIOSIZE; 281 end = start + count - 1; 282 } 283 myrid = PCIR_BAR(1) + (unit << 3); 284 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 285 SYS_RES_IOPORT, &myrid, 286 start, end, count, flags); 287 break; 288 } 289 } 290 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) { 291 if (ata_legacy(dev)) { 292 int irq = (unit == 0 ? 14 : 15); 293 294 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 295 SYS_RES_IRQ, rid, irq, irq, 1, flags); 296 } 297 else 298 res = controller->r_irq; 299 } 300 return res; 301 } 302 303 int 304 ata_pci_release_resource(device_t dev, device_t child, int type, int rid, 305 struct resource *r) 306 { 307 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 308 309 if (type == SYS_RES_IOPORT) { 310 switch (rid) { 311 case ATA_IOADDR_RID: 312 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 313 SYS_RES_IOPORT, 314 PCIR_BAR(0) + (unit << 3), r); 315 break; 316 317 case ATA_CTLADDR_RID: 318 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 319 SYS_RES_IOPORT, 320 PCIR_BAR(1) + (unit << 3), r); 321 break; 322 default: 323 return ENOENT; 324 } 325 } 326 if (type == SYS_RES_IRQ) { 327 if (rid != ATA_IRQ_RID) 328 return ENOENT; 329 330 if (ata_legacy(dev)) { 331 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 332 SYS_RES_IRQ, rid, r); 333 } 334 else 335 return 0; 336 } 337 return EINVAL; 338 } 339 340 int 341 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 342 int flags, driver_filter_t *filter, driver_intr_t *function, 343 void *argument, void **cookiep) 344 { 345 if (ata_legacy(dev)) { 346 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 347 flags, filter, function, argument, cookiep); 348 } 349 else { 350 struct ata_pci_controller *controller = device_get_softc(dev); 351 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 352 353 if (filter != NULL) { 354 printf("ata-pci.c: we cannot use a filter here\n"); 355 return (EINVAL); 356 } 357 controller->interrupt[unit].function = function; 358 controller->interrupt[unit].argument = argument; 359 *cookiep = controller; 360 return 0; 361 } 362 } 363 364 int 365 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 366 void *cookie) 367 { 368 if (ata_legacy(dev)) { 369 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 370 } 371 else { 372 struct ata_pci_controller *controller = device_get_softc(dev); 373 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 374 375 controller->interrupt[unit].function = NULL; 376 controller->interrupt[unit].argument = NULL; 377 return 0; 378 } 379 } 380 381 int 382 ata_pci_allocate(device_t dev) 383 { 384 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 385 struct ata_channel *ch = device_get_softc(dev); 386 struct resource *io = NULL, *ctlio = NULL; 387 int i, rid; 388 389 rid = ATA_IOADDR_RID; 390 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 391 return ENXIO; 392 393 rid = ATA_CTLADDR_RID; 394 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 395 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 396 return ENXIO; 397 } 398 399 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 400 ch->r_io[i].res = io; 401 ch->r_io[i].offset = i; 402 } 403 ch->r_io[ATA_CONTROL].res = ctlio; 404 ch->r_io[ATA_CONTROL].offset = ata_legacy(device_get_parent(dev)) ? 0 : 2; 405 ch->r_io[ATA_IDX_ADDR].res = io; 406 ata_default_registers(dev); 407 if (ctlr->r_res1) { 408 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 409 ch->r_io[i].res = ctlr->r_res1; 410 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE); 411 } 412 } 413 414 ata_pci_hw(dev); 415 return 0; 416 } 417 418 void 419 ata_pci_hw(device_t dev) 420 { 421 struct ata_channel *ch = device_get_softc(dev); 422 423 ata_generic_hw(dev); 424 ch->hw.status = ata_pci_status; 425 } 426 427 int 428 ata_pci_status(device_t dev) 429 { 430 struct ata_channel *ch = device_get_softc(dev); 431 432 if ((dumping || !ata_legacy(device_get_parent(dev))) && 433 ch->dma && ((ch->flags & ATA_ALWAYS_DMASTAT) || 434 (ch->dma->flags & ATA_DMA_ACTIVE))) { 435 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 436 437 if ((bmstat & (ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) != 438 ATA_BMSTAT_INTERRUPT) 439 return 0; 440 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 441 DELAY(1); 442 } 443 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 444 DELAY(100); 445 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 446 return 0; 447 } 448 return 1; 449 } 450 451 static int 452 ata_pci_dmastart(device_t dev) 453 { 454 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 455 456 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 457 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 458 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, ch->dma->sg_bus); 459 ch->dma->flags |= ATA_DMA_ACTIVE; 460 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 461 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) | 462 ((ch->dma->flags & ATA_DMA_READ) ? ATA_BMCMD_WRITE_READ : 0) | 463 ATA_BMCMD_START_STOP); 464 return 0; 465 } 466 467 static int 468 ata_pci_dmastop(device_t dev) 469 { 470 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 471 int error; 472 473 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 474 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 475 ch->dma->flags &= ~ATA_DMA_ACTIVE; 476 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 477 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 478 return error; 479 } 480 481 static void 482 ata_pci_dmareset(device_t dev) 483 { 484 struct ata_channel *ch = device_get_softc(dev); 485 486 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 487 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 488 ch->dma->flags &= ~ATA_DMA_ACTIVE; 489 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 490 ch->dma->unload(dev); 491 } 492 493 void 494 ata_pci_dmainit(device_t dev) 495 { 496 struct ata_channel *ch = device_get_softc(dev); 497 498 ata_dmainit(dev); 499 if (ch->dma) { 500 ch->dma->start = ata_pci_dmastart; 501 ch->dma->stop = ata_pci_dmastop; 502 ch->dma->reset = ata_pci_dmareset; 503 } 504 } 505 506 static device_method_t ata_pci_methods[] = { 507 /* device interface */ 508 DEVMETHOD(device_probe, ata_pci_probe), 509 DEVMETHOD(device_attach, ata_pci_attach), 510 DEVMETHOD(device_detach, ata_pci_detach), 511 DEVMETHOD(device_shutdown, bus_generic_shutdown), 512 DEVMETHOD(device_suspend, bus_generic_suspend), 513 DEVMETHOD(device_resume, bus_generic_resume), 514 515 /* bus methods */ 516 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource), 517 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 518 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 519 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 520 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 521 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 522 523 { 0, 0 } 524 }; 525 526 devclass_t atapci_devclass; 527 528 static driver_t ata_pci_driver = { 529 "atapci", 530 ata_pci_methods, 531 sizeof(struct ata_pci_controller), 532 }; 533 534 DRIVER_MODULE(atapci, pci, ata_pci_driver, atapci_devclass, 0, 0); 535 MODULE_VERSION(atapci, 1); 536 MODULE_DEPEND(atapci, ata, 1, 1, 1); 537 538 static int 539 ata_pcichannel_probe(device_t dev) 540 { 541 struct ata_channel *ch = device_get_softc(dev); 542 device_t *children; 543 int count, i; 544 char buffer[32]; 545 546 /* take care of green memory */ 547 bzero(ch, sizeof(struct ata_channel)); 548 549 /* find channel number on this controller */ 550 device_get_children(device_get_parent(dev), &children, &count); 551 for (i = 0; i < count; i++) { 552 if (children[i] == dev) 553 ch->unit = i; 554 } 555 free(children, M_TEMP); 556 557 sprintf(buffer, "ATA channel %d", ch->unit); 558 device_set_desc_copy(dev, buffer); 559 560 return ata_probe(dev); 561 } 562 563 static int 564 ata_pcichannel_attach(device_t dev) 565 { 566 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 567 struct ata_channel *ch = device_get_softc(dev); 568 int error; 569 570 if (ctlr->dmainit) 571 ctlr->dmainit(dev); 572 if (ch->dma) 573 ch->dma->alloc(dev); 574 575 if ((error = ctlr->allocate(dev))) { 576 if (ch->dma) 577 ch->dma->free(dev); 578 return error; 579 } 580 581 return ata_attach(dev); 582 } 583 584 static int 585 ata_pcichannel_detach(device_t dev) 586 { 587 struct ata_channel *ch = device_get_softc(dev); 588 int error; 589 590 if ((error = ata_detach(dev))) 591 return error; 592 593 if (ch->dma) 594 ch->dma->free(dev); 595 596 /* XXX SOS free resources for io and ctlio ?? */ 597 598 return 0; 599 } 600 601 static int 602 ata_pcichannel_locking(device_t dev, int mode) 603 { 604 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 605 struct ata_channel *ch = device_get_softc(dev); 606 607 if (ctlr->locking) 608 return ctlr->locking(dev, mode); 609 else 610 return ch->unit; 611 } 612 613 static void 614 ata_pcichannel_reset(device_t dev) 615 { 616 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 617 struct ata_channel *ch = device_get_softc(dev); 618 619 /* if DMA engine present reset it */ 620 if (ch->dma) { 621 if (ch->dma->reset) 622 ch->dma->reset(dev); 623 ch->dma->unload(dev); 624 } 625 626 /* reset the controller HW */ 627 if (ctlr->reset) 628 ctlr->reset(dev); 629 else 630 ata_generic_reset(dev); 631 } 632 633 static void 634 ata_pcichannel_setmode(device_t parent, device_t dev) 635 { 636 struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev)); 637 struct ata_device *atadev = device_get_softc(dev); 638 int mode = atadev->mode; 639 640 ctlr->setmode(dev, ATA_PIO_MAX); 641 if (mode >= ATA_DMA) 642 ctlr->setmode(dev, mode); 643 } 644 645 static device_method_t ata_pcichannel_methods[] = { 646 /* device interface */ 647 DEVMETHOD(device_probe, ata_pcichannel_probe), 648 DEVMETHOD(device_attach, ata_pcichannel_attach), 649 DEVMETHOD(device_detach, ata_pcichannel_detach), 650 DEVMETHOD(device_shutdown, bus_generic_shutdown), 651 DEVMETHOD(device_suspend, ata_suspend), 652 DEVMETHOD(device_resume, ata_resume), 653 654 /* ATA methods */ 655 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 656 DEVMETHOD(ata_locking, ata_pcichannel_locking), 657 DEVMETHOD(ata_reset, ata_pcichannel_reset), 658 659 { 0, 0 } 660 }; 661 662 driver_t ata_pcichannel_driver = { 663 "ata", 664 ata_pcichannel_methods, 665 sizeof(struct ata_channel), 666 }; 667 668 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, 0, 0); 669