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 * $FreeBSD: src/sys/dev/ata/ata-pci.c,v 1.121 2007/02/23 12:18:33 piso Exp $ 27 * $DragonFly: src/sys/dev/disk/nata/ata-pci.c,v 1.5 2007/06/05 18:30:40 swildner Exp $ 28 */ 29 30 #include "opt_ata.h" 31 32 #include <sys/param.h> 33 #include <sys/bus.h> 34 #include <sys/bus_resource.h> 35 #include <sys/malloc.h> 36 #include <sys/module.h> 37 #include <sys/nata.h> 38 #include <sys/rman.h> 39 #include <sys/systm.h> 40 41 #include <bus/pci/pcireg.h> 42 #include <bus/pci/pcivar.h> 43 44 #include "ata-all.h" 45 #include "ata-pci.h" 46 #include "ata_if.h" 47 48 /* local vars */ 49 static MALLOC_DEFINE(M_ATAPCI, "ata_pci", "ATA driver PCI"); 50 51 /* misc defines */ 52 #define IOMASK 0xfffffffc 53 #define ATA_PROBE_OK -10 54 55 int 56 ata_legacy(device_t dev) 57 { 58 return (((pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV)&& 59 ((pci_read_config(dev, PCIR_PROGIF, 1) & 60 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) != 61 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))) || 62 (!pci_read_config(dev, PCIR_BAR(0), 4) && 63 !pci_read_config(dev, PCIR_BAR(1), 4) && 64 !pci_read_config(dev, PCIR_BAR(2), 4) && 65 !pci_read_config(dev, PCIR_BAR(3), 4))); 66 67 } 68 69 int 70 ata_pci_probe(device_t dev) 71 { 72 if (pci_get_class(dev) != PCIC_STORAGE) 73 return ENXIO; 74 75 switch (pci_get_vendor(dev)) { 76 case ATA_ACARD_ID: 77 if (!ata_acard_ident(dev)) 78 return ATA_PROBE_OK; 79 break; 80 case ATA_ACER_LABS_ID: 81 if (!ata_ali_ident(dev)) 82 return ATA_PROBE_OK; 83 break; 84 case ATA_AMD_ID: 85 if (!ata_amd_ident(dev)) 86 return ATA_PROBE_OK; 87 break; 88 case ATA_ATI_ID: 89 if (!ata_ati_ident(dev)) 90 return ATA_PROBE_OK; 91 break; 92 case ATA_CYRIX_ID: 93 if (!ata_cyrix_ident(dev)) 94 return ATA_PROBE_OK; 95 break; 96 case ATA_CYPRESS_ID: 97 if (!ata_cypress_ident(dev)) 98 return ATA_PROBE_OK; 99 break; 100 case ATA_HIGHPOINT_ID: 101 if (!ata_highpoint_ident(dev)) 102 return ATA_PROBE_OK; 103 break; 104 case ATA_INTEL_ID: 105 if (!ata_intel_ident(dev)) 106 return ATA_PROBE_OK; 107 break; 108 case ATA_ITE_ID: 109 if (!ata_ite_ident(dev)) 110 return ATA_PROBE_OK; 111 break; 112 case ATA_JMICRON_ID: 113 if (!ata_jmicron_ident(dev)) 114 return ATA_PROBE_OK; 115 break; 116 case ATA_MARVELL_ID: 117 if (!ata_marvell_ident(dev)) 118 return ATA_PROBE_OK; 119 break; 120 case ATA_NATIONAL_ID: 121 if (!ata_national_ident(dev)) 122 return ATA_PROBE_OK; 123 break; 124 case ATA_NETCELL_ID: 125 if (!ata_netcell_ident(dev)) 126 return ATA_PROBE_OK; 127 break; 128 case ATA_NVIDIA_ID: 129 if (!ata_nvidia_ident(dev)) 130 return ATA_PROBE_OK; 131 break; 132 case ATA_PROMISE_ID: 133 if (!ata_promise_ident(dev)) 134 return ATA_PROBE_OK; 135 break; 136 case ATA_SERVERWORKS_ID: 137 if (!ata_serverworks_ident(dev)) 138 return ATA_PROBE_OK; 139 break; 140 case ATA_SILICON_IMAGE_ID: 141 if (!ata_sii_ident(dev)) 142 return ATA_PROBE_OK; 143 break; 144 case ATA_SIS_ID: 145 if (!ata_sis_ident(dev)) 146 return ATA_PROBE_OK; 147 break; 148 case ATA_VIA_ID: 149 if (!ata_via_ident(dev)) 150 return ATA_PROBE_OK; 151 break; 152 case ATA_CENATEK_ID: 153 if (pci_get_devid(dev) == ATA_CENATEK_ROCKET) { 154 ata_generic_ident(dev); 155 device_set_desc(dev, "Cenatek Rocket Drive controller"); 156 return ATA_PROBE_OK; 157 } 158 break; 159 case ATA_MICRON_ID: 160 if (pci_get_devid(dev) == ATA_MICRON_RZ1000 || 161 pci_get_devid(dev) == ATA_MICRON_RZ1001) { 162 ata_generic_ident(dev); 163 device_set_desc(dev, 164 "RZ 100? ATA controller !WARNING! data loss/corruption risk"); 165 return ATA_PROBE_OK; 166 } 167 break; 168 } 169 170 /* unknown chipset, try generic DMA if it seems possible */ 171 if ((pci_get_class(dev) == PCIC_STORAGE) && 172 (pci_get_subclass(dev) == PCIS_STORAGE_IDE)) { 173 if (!ata_generic_ident(dev)) 174 return ATA_PROBE_OK; 175 } 176 return ENXIO; 177 } 178 179 int 180 ata_pci_attach(device_t dev) 181 { 182 struct ata_pci_controller *ctlr = device_get_softc(dev); 183 u_int32_t cmd; 184 int unit; 185 186 /* do chipset specific setups only needed once */ 187 if (ata_legacy(dev) || pci_read_config(dev, PCIR_BAR(2), 4) & IOMASK) 188 ctlr->channels = 2; 189 else 190 ctlr->channels = 1; 191 ctlr->allocate = ata_pci_allocate; 192 ctlr->dmainit = ata_pci_dmainit; 193 ctlr->dev = dev; 194 195 /* if needed try to enable busmastering */ 196 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 197 if (!(cmd & PCIM_CMD_BUSMASTEREN)) { 198 pci_write_config(dev, PCIR_COMMAND, cmd | PCIM_CMD_BUSMASTEREN, 2); 199 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 200 } 201 202 /* if busmastering mode "stuck" use it */ 203 if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) { 204 ctlr->r_type1 = SYS_RES_IOPORT; 205 ctlr->r_rid1 = ATA_BMADDR_RID; 206 ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1, &ctlr->r_rid1, 207 RF_ACTIVE); 208 } 209 210 if (ctlr->chipinit(dev)) 211 return ENXIO; 212 213 /* attach all channels on this controller */ 214 for (unit = 0; unit < ctlr->channels; unit++) { 215 int freeunit = 2; 216 if ((unit == 0 || unit == 1) && ata_legacy(dev)) { 217 device_add_child(dev, "ata", unit); 218 continue; 219 } 220 /* XXX TGEN devclass_find_free_unit() implementation */ 221 while (freeunit < devclass_get_maxunit(ata_devclass) && 222 devclass_get_device(ata_devclass, freeunit) != NULL) 223 freeunit++; 224 device_add_child(dev, "ata", freeunit); 225 } 226 bus_generic_attach(dev); 227 return 0; 228 } 229 230 int 231 ata_pci_detach(device_t dev) 232 { 233 struct ata_pci_controller *ctlr = device_get_softc(dev); 234 device_t *children; 235 int nchildren, i; 236 237 /* detach & delete all children */ 238 if (!device_get_children(dev, &children, &nchildren)) { 239 for (i = 0; i < nchildren; i++) 240 device_delete_child(dev, children[i]); 241 kfree(children, M_TEMP); 242 } 243 244 if (ctlr->r_irq) { 245 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle); 246 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ctlr->r_irq); 247 } 248 if (ctlr->r_res2) 249 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2); 250 if (ctlr->r_res1) 251 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1); 252 253 return 0; 254 } 255 256 struct resource * 257 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, 258 u_long start, u_long end, u_long count, u_int flags) 259 { 260 struct ata_pci_controller *controller = device_get_softc(dev); 261 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 262 struct resource *res = NULL; 263 int myrid; 264 265 if (type == SYS_RES_IOPORT) { 266 switch (*rid) { 267 case ATA_IOADDR_RID: 268 if (ata_legacy(dev)) { 269 start = (unit ? ATA_SECONDARY : ATA_PRIMARY); 270 count = ATA_IOSIZE; 271 end = start + count - 1; 272 } 273 myrid = PCIR_BAR(0) + (unit << 3); 274 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 275 SYS_RES_IOPORT, &myrid, 276 start, end, count, flags); 277 break; 278 279 case ATA_CTLADDR_RID: 280 if (ata_legacy(dev)) { 281 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) + ATA_CTLOFFSET; 282 count = ATA_CTLIOSIZE; 283 end = start + count - 1; 284 } 285 myrid = PCIR_BAR(1) + (unit << 3); 286 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 287 SYS_RES_IOPORT, &myrid, 288 start, end, count, flags); 289 break; 290 } 291 } 292 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) { 293 if (ata_legacy(dev)) { 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 } 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 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 334 SYS_RES_IRQ, rid, r); 335 } 336 else 337 return 0; 338 } 339 return EINVAL; 340 } 341 342 int 343 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 344 int flags, driver_intr_t *function, void *argument, 345 void **cookiep) 346 { 347 if (ata_legacy(dev)) { 348 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 349 flags, function, argument, cookiep, NULL); 350 } 351 else { 352 struct ata_pci_controller *controller = device_get_softc(dev); 353 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 354 355 controller->interrupt[unit].function = function; 356 controller->interrupt[unit].argument = argument; 357 *cookiep = controller; 358 return 0; 359 } 360 } 361 362 int 363 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 364 void *cookie) 365 { 366 if (ata_legacy(dev)) { 367 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 368 } 369 else { 370 struct ata_pci_controller *controller = device_get_softc(dev); 371 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 372 373 controller->interrupt[unit].function = NULL; 374 controller->interrupt[unit].argument = NULL; 375 return 0; 376 } 377 } 378 379 int 380 ata_pci_allocate(device_t dev) 381 { 382 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 383 struct ata_channel *ch = device_get_softc(dev); 384 struct resource *io = NULL, *ctlio = NULL; 385 int i, rid; 386 387 rid = ATA_IOADDR_RID; 388 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 389 return ENXIO; 390 391 rid = ATA_CTLADDR_RID; 392 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 393 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 394 return ENXIO; 395 } 396 397 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 398 ch->r_io[i].res = io; 399 ch->r_io[i].offset = i; 400 } 401 ch->r_io[ATA_CONTROL].res = ctlio; 402 ch->r_io[ATA_CONTROL].offset = ata_legacy(device_get_parent(dev)) ? 0 : 2; 403 ch->r_io[ATA_IDX_ADDR].res = io; 404 ata_default_registers(dev); 405 if (ctlr->r_res1) { 406 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 407 ch->r_io[i].res = ctlr->r_res1; 408 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE); 409 } 410 } 411 412 ata_pci_hw(dev); 413 return 0; 414 } 415 416 void 417 ata_pci_hw(device_t dev) 418 { 419 struct ata_channel *ch = device_get_softc(dev); 420 421 ata_generic_hw(dev); 422 ch->hw.status = ata_pci_status; 423 } 424 425 int 426 ata_pci_status(device_t dev) 427 { 428 struct ata_channel *ch = device_get_softc(dev); 429 430 if ((dumping || !ata_legacy(device_get_parent(dev))) && 431 ch->dma && ((ch->flags & ATA_ALWAYS_DMASTAT) || 432 (ch->dma->flags & ATA_DMA_ACTIVE))) { 433 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 434 435 if ((bmstat & (ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) != 436 ATA_BMSTAT_INTERRUPT) 437 return 0; 438 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 439 DELAY(1); 440 } 441 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 442 DELAY(100); 443 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 444 return 0; 445 } 446 return 1; 447 } 448 449 static int 450 ata_pci_dmastart(device_t dev) 451 { 452 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 453 u_int8_t val; 454 455 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 456 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 457 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, ch->dma->sg_bus); 458 ch->dma->flags |= ATA_DMA_ACTIVE; 459 val = ATA_IDX_INB(ch, ATA_BMCMD_PORT); 460 if (ch->dma->flags & ATA_DMA_READ) 461 val |= ATA_BMCMD_WRITE_READ; 462 else 463 val &= ~ATA_BMCMD_WRITE_READ; 464 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, val); 465 466 /* 467 * Issue the start command separately from configuration setup, 468 * in case the hardware latches portions of the configuration. 469 */ 470 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, val | ATA_BMCMD_START_STOP); 471 472 return 0; 473 } 474 475 static int 476 ata_pci_dmastop(device_t dev) 477 { 478 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 479 int error; 480 481 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 482 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 483 ch->dma->flags &= ~ATA_DMA_ACTIVE; 484 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 485 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 486 return error; 487 } 488 489 static void 490 ata_pci_dmareset(device_t dev) 491 { 492 struct ata_channel *ch = device_get_softc(dev); 493 494 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 495 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 496 ch->dma->flags &= ~ATA_DMA_ACTIVE; 497 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 498 ch->dma->unload(dev); 499 } 500 501 void 502 ata_pci_dmainit(device_t dev) 503 { 504 struct ata_channel *ch = device_get_softc(dev); 505 506 ata_dmainit(dev); 507 if (ch->dma) { 508 ch->dma->start = ata_pci_dmastart; 509 ch->dma->stop = ata_pci_dmastop; 510 ch->dma->reset = ata_pci_dmareset; 511 } 512 } 513 514 static device_method_t ata_pci_methods[] = { 515 /* device interface */ 516 DEVMETHOD(device_probe, ata_pci_probe), 517 DEVMETHOD(device_attach, ata_pci_attach), 518 DEVMETHOD(device_detach, ata_pci_detach), 519 DEVMETHOD(device_shutdown, bus_generic_shutdown), 520 DEVMETHOD(device_suspend, bus_generic_suspend), 521 DEVMETHOD(device_resume, bus_generic_resume), 522 523 /* bus methods */ 524 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource), 525 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 526 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 527 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 528 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 529 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 530 531 { 0, 0 } 532 }; 533 534 devclass_t atapci_devclass; 535 536 static driver_t ata_pci_driver = { 537 "atapci", 538 ata_pci_methods, 539 sizeof(struct ata_pci_controller), 540 }; 541 542 DRIVER_MODULE(atapci, pci, ata_pci_driver, atapci_devclass, 0, 0); 543 MODULE_VERSION(atapci, 1); 544 MODULE_DEPEND(atapci, ata, 1, 1, 1); 545 546 static int 547 ata_pcichannel_probe(device_t dev) 548 { 549 struct ata_channel *ch = device_get_softc(dev); 550 device_t *children; 551 int count, i; 552 char buffer[32]; 553 554 /* take care of green memory */ 555 bzero(ch, sizeof(struct ata_channel)); 556 557 /* find channel number on this controller */ 558 device_get_children(device_get_parent(dev), &children, &count); 559 for (i = 0; i < count; i++) { 560 if (children[i] == dev) 561 ch->unit = i; 562 } 563 kfree(children, M_TEMP); 564 565 ksprintf(buffer, "ATA channel %d", ch->unit); 566 device_set_desc_copy(dev, buffer); 567 568 return ata_probe(dev); 569 } 570 571 static int 572 ata_pcichannel_attach(device_t dev) 573 { 574 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 575 struct ata_channel *ch = device_get_softc(dev); 576 int error; 577 578 if (ctlr->dmainit) 579 ctlr->dmainit(dev); 580 if (ch->dma) 581 ch->dma->alloc(dev); 582 583 if ((error = ctlr->allocate(dev))) { 584 if (ch->dma) 585 ch->dma->free(dev); 586 return error; 587 } 588 589 return ata_attach(dev); 590 } 591 592 static int 593 ata_pcichannel_detach(device_t dev) 594 { 595 struct ata_channel *ch = device_get_softc(dev); 596 int error; 597 598 if ((error = ata_detach(dev))) 599 return error; 600 601 if (ch->dma) 602 ch->dma->free(dev); 603 604 /* XXX SOS free resources for io and ctlio ?? */ 605 606 return 0; 607 } 608 609 static int 610 ata_pcichannel_locking(device_t dev, int mode) 611 { 612 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 613 struct ata_channel *ch = device_get_softc(dev); 614 615 if (ctlr->locking) 616 return ctlr->locking(dev, mode); 617 else 618 return ch->unit; 619 } 620 621 static void 622 ata_pcichannel_reset(device_t dev) 623 { 624 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 625 struct ata_channel *ch = device_get_softc(dev); 626 627 /* if DMA engine present reset it */ 628 if (ch->dma) { 629 if (ch->dma->reset) 630 ch->dma->reset(dev); 631 ch->dma->unload(dev); 632 } 633 634 /* reset the controller HW */ 635 if (ctlr->reset) 636 ctlr->reset(dev); 637 else 638 ata_generic_reset(dev); 639 } 640 641 static void 642 ata_pcichannel_setmode(device_t parent, device_t dev) 643 { 644 struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev)); 645 struct ata_device *atadev = device_get_softc(dev); 646 int mode = atadev->mode; 647 648 ctlr->setmode(dev, ATA_PIO_MAX); 649 if (mode >= ATA_DMA) 650 ctlr->setmode(dev, mode); 651 } 652 653 static device_method_t ata_pcichannel_methods[] = { 654 /* device interface */ 655 DEVMETHOD(device_probe, ata_pcichannel_probe), 656 DEVMETHOD(device_attach, ata_pcichannel_attach), 657 DEVMETHOD(device_detach, ata_pcichannel_detach), 658 DEVMETHOD(device_shutdown, bus_generic_shutdown), 659 DEVMETHOD(device_suspend, ata_suspend), 660 DEVMETHOD(device_resume, ata_resume), 661 662 /* ATA methods */ 663 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 664 DEVMETHOD(ata_locking, ata_pcichannel_locking), 665 DEVMETHOD(ata_reset, ata_pcichannel_reset), 666 667 { 0, 0 } 668 }; 669 670 driver_t ata_pcichannel_driver = { 671 "ata", 672 ata_pcichannel_methods, 673 sizeof(struct ata_channel), 674 }; 675 676 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, 0, 0); 677