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 !pci_read_config(dev, PCIR_BAR(5), 4))); 71 } 72 73 int 74 ata_pci_probe(device_t dev) 75 { 76 if (pci_get_class(dev) != PCIC_STORAGE) 77 return ENXIO; 78 79 switch (pci_get_vendor(dev)) { 80 case ATA_ACARD_ID: 81 if (!ata_acard_ident(dev)) 82 return ATA_PROBE_OK; 83 break; 84 case ATA_ACER_LABS_ID: 85 if (!ata_ali_ident(dev)) 86 return ATA_PROBE_OK; 87 break; 88 case ATA_AMD_ID: 89 if (!ata_amd_ident(dev)) 90 return ATA_PROBE_OK; 91 break; 92 case ATA_ATI_ID: 93 if (!ata_ati_ident(dev)) 94 return ATA_PROBE_OK; 95 break; 96 case ATA_CYRIX_ID: 97 if (!ata_cyrix_ident(dev)) 98 return ATA_PROBE_OK; 99 break; 100 case ATA_CYPRESS_ID: 101 if (!ata_cypress_ident(dev)) 102 return ATA_PROBE_OK; 103 break; 104 case ATA_HIGHPOINT_ID: 105 if (!ata_highpoint_ident(dev)) 106 return ATA_PROBE_OK; 107 break; 108 case ATA_INTEL_ID: 109 if (!ata_intel_ident(dev)) 110 return ATA_PROBE_OK; 111 break; 112 case ATA_ITE_ID: 113 if (!ata_ite_ident(dev)) 114 return ATA_PROBE_OK; 115 break; 116 case ATA_JMICRON_ID: 117 if (!ata_jmicron_ident(dev)) 118 return ATA_PROBE_OK; 119 break; 120 case ATA_MARVELL_ID: 121 if (!ata_marvell_ident(dev)) 122 return ATA_PROBE_OK; 123 break; 124 case ATA_NATIONAL_ID: 125 if (!ata_national_ident(dev)) 126 return ATA_PROBE_OK; 127 break; 128 case ATA_NETCELL_ID: 129 if (!ata_netcell_ident(dev)) 130 return ATA_PROBE_OK; 131 break; 132 case ATA_NVIDIA_ID: 133 if (!ata_nvidia_ident(dev)) 134 return ATA_PROBE_OK; 135 break; 136 case ATA_PROMISE_ID: 137 if (!ata_promise_ident(dev)) 138 return ATA_PROBE_OK; 139 break; 140 case ATA_SERVERWORKS_ID: 141 if (!ata_serverworks_ident(dev)) 142 return ATA_PROBE_OK; 143 break; 144 case ATA_SILICON_IMAGE_ID: 145 if (!ata_sii_ident(dev)) 146 return ATA_PROBE_OK; 147 break; 148 case ATA_SIS_ID: 149 if (!ata_sis_ident(dev)) 150 return ATA_PROBE_OK; 151 break; 152 case ATA_VIA_ID: 153 if (!ata_via_ident(dev)) 154 return ATA_PROBE_OK; 155 break; 156 case ATA_CENATEK_ID: 157 if (pci_get_devid(dev) == ATA_CENATEK_ROCKET) { 158 ata_generic_ident(dev); 159 device_set_desc(dev, "Cenatek Rocket Drive controller"); 160 return ATA_PROBE_OK; 161 } 162 break; 163 case ATA_MICRON_ID: 164 if (pci_get_devid(dev) == ATA_MICRON_RZ1000 || 165 pci_get_devid(dev) == ATA_MICRON_RZ1001) { 166 ata_generic_ident(dev); 167 device_set_desc(dev, 168 "RZ 100? ATA controller !WARNING! data loss/corruption risk"); 169 return ATA_PROBE_OK; 170 } 171 break; 172 } 173 174 /* unknown chipset, try generic DMA if it seems possible */ 175 if ((pci_get_class(dev) == PCIC_STORAGE) && 176 (pci_get_subclass(dev) == PCIS_STORAGE_IDE)) { 177 if (!ata_generic_ident(dev)) 178 return ATA_PROBE_OK; 179 } 180 return ENXIO; 181 } 182 183 int 184 ata_pci_attach(device_t dev) 185 { 186 struct ata_pci_controller *ctlr = device_get_softc(dev); 187 u_int32_t cmd; 188 int unit; 189 190 /* do chipset specific setups only needed once */ 191 if (ata_legacy(dev) || pci_read_config(dev, PCIR_BAR(2), 4) & IOMASK) 192 ctlr->channels = 2; 193 else 194 ctlr->channels = 1; 195 ctlr->allocate = ata_pci_allocate; 196 ctlr->dmainit = ata_pci_dmainit; 197 ctlr->dev = dev; 198 199 /* if needed try to enable busmastering */ 200 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 201 if (!(cmd & PCIM_CMD_BUSMASTEREN)) { 202 pci_write_config(dev, PCIR_COMMAND, cmd | PCIM_CMD_BUSMASTEREN, 2); 203 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 204 } 205 206 /* if busmastering mode "stuck" use it */ 207 if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) { 208 ctlr->r_type1 = SYS_RES_IOPORT; 209 ctlr->r_rid1 = ATA_BMADDR_RID; 210 ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1, &ctlr->r_rid1, 211 RF_ACTIVE); 212 } 213 214 if (ctlr->chipinit(dev)) 215 return ENXIO; 216 217 /* attach all channels on this controller */ 218 for (unit = 0; unit < ctlr->channels; unit++) { 219 if ((unit == 0 || unit == 1) && ata_legacy(dev)) { 220 device_add_child(dev, "ata", unit); 221 continue; 222 } 223 device_add_child(dev, "ata", devclass_find_free_unit(ata_devclass, 2)); 224 } 225 bus_generic_attach(dev); 226 return 0; 227 } 228 229 int 230 ata_pci_detach(device_t dev) 231 { 232 struct ata_pci_controller *ctlr = device_get_softc(dev); 233 device_t *children; 234 int nchildren, i; 235 236 /* detach & delete all children */ 237 if (!device_get_children(dev, &children, &nchildren)) { 238 for (i = 0; i < nchildren; i++) 239 device_delete_child(dev, children[i]); 240 free(children, M_TEMP); 241 } 242 243 if (ctlr->r_irq) { 244 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle); 245 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ctlr->r_irq); 246 } 247 if (ctlr->r_res2) 248 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2); 249 if (ctlr->r_res1) 250 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1); 251 252 return 0; 253 } 254 255 struct resource * 256 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, 257 u_long start, u_long end, u_long count, u_int flags) 258 { 259 struct ata_pci_controller *controller = device_get_softc(dev); 260 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 261 struct resource *res = NULL; 262 int myrid; 263 264 if (type == SYS_RES_IOPORT) { 265 switch (*rid) { 266 case ATA_IOADDR_RID: 267 if (ata_legacy(dev)) { 268 start = (unit ? ATA_SECONDARY : ATA_PRIMARY); 269 count = ATA_IOSIZE; 270 end = start + count - 1; 271 } 272 myrid = PCIR_BAR(0) + (unit << 3); 273 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 274 SYS_RES_IOPORT, &myrid, 275 start, end, count, flags); 276 break; 277 278 case ATA_CTLADDR_RID: 279 if (ata_legacy(dev)) { 280 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) + ATA_CTLOFFSET; 281 count = ATA_CTLIOSIZE; 282 end = start + count - 1; 283 } 284 myrid = PCIR_BAR(1) + (unit << 3); 285 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 286 SYS_RES_IOPORT, &myrid, 287 start, end, count, flags); 288 break; 289 } 290 } 291 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) { 292 if (ata_legacy(dev)) { 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 } 298 else 299 res = controller->r_irq; 300 } 301 return res; 302 } 303 304 int 305 ata_pci_release_resource(device_t dev, device_t child, int type, int rid, 306 struct resource *r) 307 { 308 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 309 310 if (type == SYS_RES_IOPORT) { 311 switch (rid) { 312 case ATA_IOADDR_RID: 313 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 314 SYS_RES_IOPORT, 315 PCIR_BAR(0) + (unit << 3), r); 316 break; 317 318 case ATA_CTLADDR_RID: 319 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 320 SYS_RES_IOPORT, 321 PCIR_BAR(1) + (unit << 3), r); 322 break; 323 default: 324 return ENOENT; 325 } 326 } 327 if (type == SYS_RES_IRQ) { 328 if (rid != ATA_IRQ_RID) 329 return ENOENT; 330 331 if (ata_legacy(dev)) { 332 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 333 SYS_RES_IRQ, rid, r); 334 } 335 else 336 return 0; 337 } 338 return EINVAL; 339 } 340 341 int 342 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 343 int flags, driver_filter_t *filter, driver_intr_t *function, 344 void *argument, void **cookiep) 345 { 346 if (ata_legacy(dev)) { 347 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 348 flags, filter, function, argument, cookiep); 349 } 350 else { 351 struct ata_pci_controller *controller = device_get_softc(dev); 352 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 353 354 if (filter != NULL) { 355 printf("ata-pci.c: we cannot use a filter here\n"); 356 return (EINVAL); 357 } 358 controller->interrupt[unit].function = function; 359 controller->interrupt[unit].argument = argument; 360 *cookiep = controller; 361 return 0; 362 } 363 } 364 365 int 366 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 367 void *cookie) 368 { 369 if (ata_legacy(dev)) { 370 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 371 } 372 else { 373 struct ata_pci_controller *controller = device_get_softc(dev); 374 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 375 376 controller->interrupt[unit].function = NULL; 377 controller->interrupt[unit].argument = NULL; 378 return 0; 379 } 380 } 381 382 int 383 ata_pci_allocate(device_t dev) 384 { 385 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 386 struct ata_channel *ch = device_get_softc(dev); 387 struct resource *io = NULL, *ctlio = NULL; 388 int i, rid; 389 390 rid = ATA_IOADDR_RID; 391 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 392 return ENXIO; 393 394 rid = ATA_CTLADDR_RID; 395 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 396 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 397 return ENXIO; 398 } 399 400 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 401 ch->r_io[i].res = io; 402 ch->r_io[i].offset = i; 403 } 404 ch->r_io[ATA_CONTROL].res = ctlio; 405 ch->r_io[ATA_CONTROL].offset = ata_legacy(device_get_parent(dev)) ? 0 : 2; 406 ch->r_io[ATA_IDX_ADDR].res = io; 407 ata_default_registers(dev); 408 if (ctlr->r_res1) { 409 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 410 ch->r_io[i].res = ctlr->r_res1; 411 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE); 412 } 413 } 414 415 ata_pci_hw(dev); 416 return 0; 417 } 418 419 void 420 ata_pci_hw(device_t dev) 421 { 422 struct ata_channel *ch = device_get_softc(dev); 423 424 ata_generic_hw(dev); 425 ch->hw.status = ata_pci_status; 426 } 427 428 int 429 ata_pci_status(device_t dev) 430 { 431 struct ata_channel *ch = device_get_softc(dev); 432 433 if ((dumping || !ata_legacy(device_get_parent(dev))) && 434 ch->dma && ((ch->flags & ATA_ALWAYS_DMASTAT) || 435 (ch->dma->flags & ATA_DMA_ACTIVE))) { 436 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 437 438 if ((bmstat & (ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) != 439 ATA_BMSTAT_INTERRUPT) 440 return 0; 441 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 442 DELAY(1); 443 } 444 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 445 DELAY(100); 446 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 447 return 0; 448 } 449 return 1; 450 } 451 452 static int 453 ata_pci_dmastart(device_t dev) 454 { 455 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 456 457 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 458 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 459 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, ch->dma->sg_bus); 460 ch->dma->flags |= ATA_DMA_ACTIVE; 461 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 462 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) | 463 ((ch->dma->flags & ATA_DMA_READ) ? ATA_BMCMD_WRITE_READ : 0) | 464 ATA_BMCMD_START_STOP); 465 return 0; 466 } 467 468 static int 469 ata_pci_dmastop(device_t dev) 470 { 471 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 472 int error; 473 474 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 475 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 476 ch->dma->flags &= ~ATA_DMA_ACTIVE; 477 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 478 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 479 return error; 480 } 481 482 static void 483 ata_pci_dmareset(device_t dev) 484 { 485 struct ata_channel *ch = device_get_softc(dev); 486 487 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 488 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 489 ch->dma->flags &= ~ATA_DMA_ACTIVE; 490 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 491 ch->dma->unload(dev); 492 } 493 494 void 495 ata_pci_dmainit(device_t dev) 496 { 497 struct ata_channel *ch = device_get_softc(dev); 498 499 ata_dmainit(dev); 500 if (ch->dma) { 501 ch->dma->start = ata_pci_dmastart; 502 ch->dma->stop = ata_pci_dmastop; 503 ch->dma->reset = ata_pci_dmareset; 504 } 505 } 506 507 static device_method_t ata_pci_methods[] = { 508 /* device interface */ 509 DEVMETHOD(device_probe, ata_pci_probe), 510 DEVMETHOD(device_attach, ata_pci_attach), 511 DEVMETHOD(device_detach, ata_pci_detach), 512 DEVMETHOD(device_shutdown, bus_generic_shutdown), 513 DEVMETHOD(device_suspend, bus_generic_suspend), 514 DEVMETHOD(device_resume, bus_generic_resume), 515 516 /* bus methods */ 517 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource), 518 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 519 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 520 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 521 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 522 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 523 524 { 0, 0 } 525 }; 526 527 devclass_t atapci_devclass; 528 529 static driver_t ata_pci_driver = { 530 "atapci", 531 ata_pci_methods, 532 sizeof(struct ata_pci_controller), 533 }; 534 535 DRIVER_MODULE(atapci, pci, ata_pci_driver, atapci_devclass, 0, 0); 536 MODULE_VERSION(atapci, 1); 537 MODULE_DEPEND(atapci, ata, 1, 1, 1); 538 539 static int 540 ata_pcichannel_probe(device_t dev) 541 { 542 struct ata_channel *ch = device_get_softc(dev); 543 device_t *children; 544 int count, i; 545 char buffer[32]; 546 547 /* take care of green memory */ 548 bzero(ch, sizeof(struct ata_channel)); 549 550 /* find channel number on this controller */ 551 device_get_children(device_get_parent(dev), &children, &count); 552 for (i = 0; i < count; i++) { 553 if (children[i] == dev) 554 ch->unit = i; 555 } 556 free(children, M_TEMP); 557 558 sprintf(buffer, "ATA channel %d", ch->unit); 559 device_set_desc_copy(dev, buffer); 560 561 return ata_probe(dev); 562 } 563 564 static int 565 ata_pcichannel_attach(device_t dev) 566 { 567 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 568 struct ata_channel *ch = device_get_softc(dev); 569 int error; 570 571 if (ctlr->dmainit) 572 ctlr->dmainit(dev); 573 if (ch->dma) 574 ch->dma->alloc(dev); 575 576 if ((error = ctlr->allocate(dev))) { 577 if (ch->dma) 578 ch->dma->free(dev); 579 return error; 580 } 581 582 return ata_attach(dev); 583 } 584 585 static int 586 ata_pcichannel_detach(device_t dev) 587 { 588 struct ata_channel *ch = device_get_softc(dev); 589 int error; 590 591 if ((error = ata_detach(dev))) 592 return error; 593 594 if (ch->dma) 595 ch->dma->free(dev); 596 597 /* XXX SOS free resources for io and ctlio ?? */ 598 599 return 0; 600 } 601 602 static int 603 ata_pcichannel_locking(device_t dev, int mode) 604 { 605 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 606 struct ata_channel *ch = device_get_softc(dev); 607 608 if (ctlr->locking) 609 return ctlr->locking(dev, mode); 610 else 611 return ch->unit; 612 } 613 614 static void 615 ata_pcichannel_reset(device_t dev) 616 { 617 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 618 struct ata_channel *ch = device_get_softc(dev); 619 620 /* if DMA engine present reset it */ 621 if (ch->dma) { 622 if (ch->dma->reset) 623 ch->dma->reset(dev); 624 ch->dma->unload(dev); 625 } 626 627 /* reset the controller HW */ 628 if (ctlr->reset) 629 ctlr->reset(dev); 630 else 631 ata_generic_reset(dev); 632 } 633 634 static void 635 ata_pcichannel_setmode(device_t parent, device_t dev) 636 { 637 struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev)); 638 struct ata_device *atadev = device_get_softc(dev); 639 int mode = atadev->mode; 640 641 ctlr->setmode(dev, ATA_PIO_MAX); 642 if (mode >= ATA_DMA) 643 ctlr->setmode(dev, mode); 644 } 645 646 static device_method_t ata_pcichannel_methods[] = { 647 /* device interface */ 648 DEVMETHOD(device_probe, ata_pcichannel_probe), 649 DEVMETHOD(device_attach, ata_pcichannel_attach), 650 DEVMETHOD(device_detach, ata_pcichannel_detach), 651 DEVMETHOD(device_shutdown, bus_generic_shutdown), 652 DEVMETHOD(device_suspend, ata_suspend), 653 DEVMETHOD(device_resume, ata_resume), 654 655 /* ATA methods */ 656 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 657 DEVMETHOD(ata_locking, ata_pcichannel_locking), 658 DEVMETHOD(ata_reset, ata_pcichannel_reset), 659 660 { 0, 0 } 661 }; 662 663 driver_t ata_pcichannel_driver = { 664 "ata", 665 ata_pcichannel_methods, 666 sizeof(struct ata_channel), 667 }; 668 669 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, 0, 0); 670