1 /*- 2 * Copyright (c) 1998 - 2006 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 #ifdef __alpha__ 46 #include <machine/md_var.h> 47 #endif 48 #include <sys/rman.h> 49 #include <dev/pci/pcivar.h> 50 #include <dev/pci/pcireg.h> 51 #include <dev/ata/ata-all.h> 52 #include <dev/ata/ata-pci.h> 53 #include <ata_if.h> 54 55 /* local vars */ 56 static MALLOC_DEFINE(M_ATAPCI, "ata_pci", "ATA driver PCI"); 57 58 /* misc defines */ 59 #define IOMASK 0xfffffffc 60 #define ATA_PROBE_OK -10 61 62 int 63 ata_legacy(device_t dev) 64 { 65 return ((pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV) && 66 ((pci_read_config(dev, PCIR_PROGIF, 1) & 67 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) != 68 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))); 69 } 70 71 int 72 ata_pci_probe(device_t dev) 73 { 74 if (pci_get_class(dev) != PCIC_STORAGE) 75 return ENXIO; 76 77 switch (pci_get_vendor(dev)) { 78 case ATA_ACARD_ID: 79 if (!ata_acard_ident(dev)) 80 return ATA_PROBE_OK; 81 break; 82 case ATA_ACER_LABS_ID: 83 if (!ata_ali_ident(dev)) 84 return ATA_PROBE_OK; 85 break; 86 case ATA_AMD_ID: 87 if (!ata_amd_ident(dev)) 88 return ATA_PROBE_OK; 89 break; 90 case ATA_ATI_ID: 91 if (!ata_ati_ident(dev)) 92 return ATA_PROBE_OK; 93 break; 94 case ATA_CYRIX_ID: 95 if (!ata_cyrix_ident(dev)) 96 return ATA_PROBE_OK; 97 break; 98 case ATA_CYPRESS_ID: 99 if (!ata_cypress_ident(dev)) 100 return ATA_PROBE_OK; 101 break; 102 case ATA_HIGHPOINT_ID: 103 if (!ata_highpoint_ident(dev)) 104 return ATA_PROBE_OK; 105 break; 106 case ATA_INTEL_ID: 107 if (!ata_intel_ident(dev)) 108 return ATA_PROBE_OK; 109 break; 110 case ATA_ITE_ID: 111 if (!ata_ite_ident(dev)) 112 return ATA_PROBE_OK; 113 break; 114 case ATA_JMICRON_ID: 115 if (!ata_jmicron_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 if (ctlr->chipinit(dev)) 209 return ENXIO; 210 211 /* attach all channels on this controller */ 212 for (unit = 0; unit < ctlr->channels; unit++) { 213 if (unit == 0 && (pci_get_progif(dev) & 0x81) == 0x80) { 214 device_add_child(dev, "ata", unit); 215 continue; 216 } 217 if (unit == 1 && (pci_get_progif(dev) & 0x84) == 0x80) { 218 device_add_child(dev, "ata", unit); 219 continue; 220 } 221 device_add_child(dev, "ata", devclass_find_free_unit(ata_devclass, 2)); 222 } 223 bus_generic_attach(dev); 224 return 0; 225 } 226 227 int 228 ata_pci_detach(device_t dev) 229 { 230 struct ata_pci_controller *ctlr = device_get_softc(dev); 231 device_t *children; 232 int nchildren, i; 233 234 /* detach & delete all children */ 235 if (!device_get_children(dev, &children, &nchildren)) { 236 for (i = 0; i < nchildren; i++) 237 device_delete_child(dev, children[i]); 238 free(children, M_TEMP); 239 } 240 241 if (ctlr->r_irq) { 242 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle); 243 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ctlr->r_irq); 244 } 245 if (ctlr->r_res2) 246 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2); 247 if (ctlr->r_res1) 248 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1); 249 250 return 0; 251 } 252 253 struct resource * 254 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, 255 u_long start, u_long end, u_long count, u_int flags) 256 { 257 struct ata_pci_controller *controller = device_get_softc(dev); 258 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 259 struct resource *res = NULL; 260 int myrid; 261 262 if (type == SYS_RES_IOPORT) { 263 switch (*rid) { 264 case ATA_IOADDR_RID: 265 if (ata_legacy(dev)) { 266 start = (unit ? ATA_SECONDARY : ATA_PRIMARY); 267 count = ATA_IOSIZE; 268 end = start + count - 1; 269 } 270 myrid = PCIR_BAR(0) + (unit << 3); 271 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 272 SYS_RES_IOPORT, &myrid, 273 start, end, count, flags); 274 break; 275 276 case ATA_CTLADDR_RID: 277 if (ata_legacy(dev)) { 278 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) + ATA_CTLOFFSET; 279 count = ATA_CTLIOSIZE; 280 end = start + count - 1; 281 } 282 myrid = PCIR_BAR(1) + (unit << 3); 283 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 284 SYS_RES_IOPORT, &myrid, 285 start, end, count, flags); 286 break; 287 } 288 } 289 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) { 290 if (ata_legacy(dev)) { 291 #ifdef __alpha__ 292 res = alpha_platform_alloc_ide_intr(unit); 293 #else 294 int irq = (unit == 0 ? 14 : 15); 295 296 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 297 SYS_RES_IRQ, rid, irq, irq, 1, flags); 298 #endif 299 } 300 else 301 res = controller->r_irq; 302 } 303 return res; 304 } 305 306 int 307 ata_pci_release_resource(device_t dev, device_t child, int type, int rid, 308 struct resource *r) 309 { 310 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 311 312 if (type == SYS_RES_IOPORT) { 313 switch (rid) { 314 case ATA_IOADDR_RID: 315 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 316 SYS_RES_IOPORT, 317 PCIR_BAR(0) + (unit << 3), r); 318 break; 319 320 case ATA_CTLADDR_RID: 321 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 322 SYS_RES_IOPORT, 323 PCIR_BAR(1) + (unit << 3), r); 324 break; 325 default: 326 return ENOENT; 327 } 328 } 329 if (type == SYS_RES_IRQ) { 330 if (rid != ATA_IRQ_RID) 331 return ENOENT; 332 333 if (ata_legacy(dev)) { 334 #ifdef __alpha__ 335 return alpha_platform_release_ide_intr(unit, r); 336 #else 337 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 338 SYS_RES_IRQ, rid, r); 339 #endif 340 } 341 else 342 return 0; 343 } 344 return EINVAL; 345 } 346 347 int 348 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 349 int flags, driver_intr_t *function, void *argument, 350 void **cookiep) 351 { 352 if (ata_legacy(dev)) { 353 #ifdef __alpha__ 354 return alpha_platform_setup_ide_intr(child, irq, function, argument, 355 cookiep); 356 #else 357 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 358 flags, function, argument, cookiep); 359 #endif 360 } 361 else { 362 struct ata_pci_controller *controller = device_get_softc(dev); 363 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 364 365 controller->interrupt[unit].function = function; 366 controller->interrupt[unit].argument = argument; 367 *cookiep = controller; 368 return 0; 369 } 370 } 371 372 int 373 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 374 void *cookie) 375 { 376 if (ata_legacy(dev)) { 377 #ifdef __alpha__ 378 return alpha_platform_teardown_ide_intr(child, irq, cookie); 379 #else 380 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 381 #endif 382 } 383 else { 384 struct ata_pci_controller *controller = device_get_softc(dev); 385 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 386 387 controller->interrupt[unit].function = NULL; 388 controller->interrupt[unit].argument = NULL; 389 return 0; 390 } 391 } 392 393 int 394 ata_pci_allocate(device_t dev) 395 { 396 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 397 struct ata_channel *ch = device_get_softc(dev); 398 struct resource *io = NULL, *ctlio = NULL; 399 int i, rid; 400 401 rid = ATA_IOADDR_RID; 402 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 403 return ENXIO; 404 405 rid = ATA_CTLADDR_RID; 406 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 407 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 408 return ENXIO; 409 } 410 411 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 412 ch->r_io[i].res = io; 413 ch->r_io[i].offset = i; 414 } 415 ch->r_io[ATA_CONTROL].res = ctlio; 416 ch->r_io[ATA_CONTROL].offset = ata_legacy(device_get_parent(dev)) ? 0 : 2; 417 ch->r_io[ATA_IDX_ADDR].res = io; 418 ata_default_registers(dev); 419 if (ctlr->r_res1) { 420 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 421 ch->r_io[i].res = ctlr->r_res1; 422 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE); 423 } 424 } 425 426 ata_pci_hw(dev); 427 return 0; 428 } 429 430 void 431 ata_pci_hw(device_t dev) 432 { 433 struct ata_channel *ch = device_get_softc(dev); 434 435 ata_generic_hw(dev); 436 ch->hw.status = ata_pci_status; 437 } 438 439 int 440 ata_pci_status(device_t dev) 441 { 442 struct ata_channel *ch = device_get_softc(dev); 443 444 if ((dumping || !ata_legacy(device_get_parent(dev))) && 445 ch->dma && ((ch->flags & ATA_ALWAYS_DMASTAT) || 446 (ch->dma->flags & ATA_DMA_ACTIVE))) { 447 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 448 449 if ((bmstat & (ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) != 450 ATA_BMSTAT_INTERRUPT) 451 return 0; 452 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 453 DELAY(1); 454 } 455 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 456 DELAY(100); 457 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 458 return 0; 459 } 460 return 1; 461 } 462 463 static int 464 ata_pci_dmastart(device_t dev) 465 { 466 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 467 468 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 469 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 470 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, ch->dma->sg_bus); 471 ch->dma->flags |= ATA_DMA_ACTIVE; 472 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 473 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) | 474 ((ch->dma->flags & ATA_DMA_READ) ? ATA_BMCMD_WRITE_READ : 0) | 475 ATA_BMCMD_START_STOP); 476 return 0; 477 } 478 479 static int 480 ata_pci_dmastop(device_t dev) 481 { 482 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 483 int error; 484 485 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 486 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 487 ch->dma->flags &= ~ATA_DMA_ACTIVE; 488 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 489 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 490 return error; 491 } 492 493 static void 494 ata_pci_dmareset(device_t dev) 495 { 496 struct ata_channel *ch = device_get_softc(dev); 497 498 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 499 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 500 ch->dma->flags &= ~ATA_DMA_ACTIVE; 501 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 502 ch->dma->unload(dev); 503 } 504 505 void 506 ata_pci_dmainit(device_t dev) 507 { 508 struct ata_channel *ch = device_get_softc(dev); 509 510 ata_dmainit(dev); 511 if (ch->dma) { 512 ch->dma->start = ata_pci_dmastart; 513 ch->dma->stop = ata_pci_dmastop; 514 ch->dma->reset = ata_pci_dmareset; 515 } 516 } 517 518 static device_method_t ata_pci_methods[] = { 519 /* device interface */ 520 DEVMETHOD(device_probe, ata_pci_probe), 521 DEVMETHOD(device_attach, ata_pci_attach), 522 DEVMETHOD(device_detach, ata_pci_detach), 523 DEVMETHOD(device_shutdown, bus_generic_shutdown), 524 DEVMETHOD(device_suspend, bus_generic_suspend), 525 DEVMETHOD(device_resume, bus_generic_resume), 526 527 /* bus methods */ 528 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource), 529 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 530 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 531 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 532 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 533 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 534 535 { 0, 0 } 536 }; 537 538 devclass_t atapci_devclass; 539 540 static driver_t ata_pci_driver = { 541 "atapci", 542 ata_pci_methods, 543 sizeof(struct ata_pci_controller), 544 }; 545 546 DRIVER_MODULE(atapci, pci, ata_pci_driver, atapci_devclass, 0, 0); 547 MODULE_VERSION(atapci, 1); 548 MODULE_DEPEND(atapci, ata, 1, 1, 1); 549 550 static int 551 ata_pcichannel_probe(device_t dev) 552 { 553 struct ata_channel *ch = device_get_softc(dev); 554 device_t *children; 555 int count, i; 556 char buffer[32]; 557 558 /* take care of green memory */ 559 bzero(ch, sizeof(struct ata_channel)); 560 561 /* find channel number on this controller */ 562 device_get_children(device_get_parent(dev), &children, &count); 563 for (i = 0; i < count; i++) { 564 if (children[i] == dev) 565 ch->unit = i; 566 } 567 free(children, M_TEMP); 568 569 sprintf(buffer, "ATA channel %d", ch->unit); 570 device_set_desc_copy(dev, buffer); 571 572 return ata_probe(dev); 573 } 574 575 static int 576 ata_pcichannel_attach(device_t dev) 577 { 578 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 579 struct ata_channel *ch = device_get_softc(dev); 580 int error; 581 582 if (ctlr->dmainit) 583 ctlr->dmainit(dev); 584 if (ch->dma) 585 ch->dma->alloc(dev); 586 587 if ((error = ctlr->allocate(dev))) 588 return error; 589 590 return ata_attach(dev); 591 } 592 593 static int 594 ata_pcichannel_detach(device_t dev) 595 { 596 struct ata_channel *ch = device_get_softc(dev); 597 int error; 598 599 if ((error = ata_detach(dev))) 600 return error; 601 602 if (ch->dma) 603 ch->dma->free(dev); 604 605 /* XXX SOS free resources for io and ctlio ?? */ 606 607 return 0; 608 } 609 610 static int 611 ata_pcichannel_locking(device_t dev, int mode) 612 { 613 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 614 struct ata_channel *ch = device_get_softc(dev); 615 616 if (ctlr->locking) 617 return ctlr->locking(dev, mode); 618 else 619 return ch->unit; 620 } 621 622 static void 623 ata_pcichannel_reset(device_t dev) 624 { 625 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 626 struct ata_channel *ch = device_get_softc(dev); 627 628 /* if DMA engine present reset it */ 629 if (ch->dma) { 630 if (ch->dma->reset) 631 ch->dma->reset(dev); 632 ch->dma->unload(dev); 633 } 634 635 /* reset the controller HW */ 636 if (ctlr->reset) 637 ctlr->reset(dev); 638 else 639 ata_generic_reset(dev); 640 } 641 642 static void 643 ata_pcichannel_setmode(device_t parent, device_t dev) 644 { 645 struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev)); 646 struct ata_device *atadev = device_get_softc(dev); 647 int mode = atadev->mode; 648 649 ctlr->setmode(dev, ATA_PIO_MAX); 650 if (mode >= ATA_DMA) 651 ctlr->setmode(dev, mode); 652 } 653 654 static device_method_t ata_pcichannel_methods[] = { 655 /* device interface */ 656 DEVMETHOD(device_probe, ata_pcichannel_probe), 657 DEVMETHOD(device_attach, ata_pcichannel_attach), 658 DEVMETHOD(device_detach, ata_pcichannel_detach), 659 DEVMETHOD(device_shutdown, bus_generic_shutdown), 660 DEVMETHOD(device_suspend, ata_suspend), 661 DEVMETHOD(device_resume, ata_resume), 662 663 /* ATA methods */ 664 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 665 DEVMETHOD(ata_locking, ata_pcichannel_locking), 666 DEVMETHOD(ata_reset, ata_pcichannel_reset), 667 668 { 0, 0 } 669 }; 670 671 driver_t ata_pcichannel_driver = { 672 "ata", 673 ata_pcichannel_methods, 674 sizeof(struct ata_channel), 675 }; 676 677 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, 0, 0); 678