1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 1998 - 2008 S��ren Schmidt <sos@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer, 12 * without modification, immediately at the beginning of the file. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 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 <sys/param.h> 33#include <sys/systm.h> 34#include <sys/kernel.h> 35#include <sys/module.h> 36#include <sys/ata.h> 37#include <sys/bus.h> 38#include <sys/conf.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#include <sys/rman.h> 47#include <dev/pci/pcivar.h> 48#include <dev/pci/pcireg.h> 49#include <dev/ata/ata-all.h> 50#include <dev/ata/ata-pci.h> 51#include <ata_if.h> 52 53MALLOC_DEFINE(M_ATAPCI, "ata_pci", "ATA driver PCI"); 54 55/* misc defines */ 56#define IOMASK 0xfffffffc 57 58/* 59 * generic PCI ATA device probe 60 */ 61int 62ata_pci_probe(device_t dev) 63{ 64 struct ata_pci_controller *ctlr = device_get_softc(dev); 65 char buffer[64]; 66 67 /* is this a storage class device ? */ 68 if (pci_get_class(dev) != PCIC_STORAGE) 69 return (ENXIO); 70 71 /* is this an IDE/ATA type device ? */ 72 if (pci_get_subclass(dev) != PCIS_STORAGE_IDE) 73 return (ENXIO); 74 75 sprintf(buffer, "%s ATA controller", ata_pcivendor2str(dev)); 76 device_set_desc_copy(dev, buffer); 77 ctlr->chipinit = ata_generic_chipinit; 78 79 /* we are a low priority handler */ 80 return (BUS_PROBE_GENERIC); 81} 82 83int 84ata_pci_attach(device_t dev) 85{ 86 struct ata_pci_controller *ctlr = device_get_softc(dev); 87 device_t child; 88 u_int32_t cmd; 89 int unit; 90 91 /* do chipset specific setups only needed once */ 92 ctlr->legacy = ata_legacy(dev); 93 if (ctlr->legacy || pci_read_config(dev, PCIR_BAR(2), 4) & IOMASK) 94 ctlr->channels = 2; 95 else 96 ctlr->channels = 1; 97 ctlr->ichannels = -1; 98 ctlr->ch_attach = ata_pci_ch_attach; 99 ctlr->ch_detach = ata_pci_ch_detach; 100 ctlr->dev = dev; 101 102 /* if needed try to enable busmastering */ 103 pci_enable_busmaster(dev); 104 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 105 106 /* if busmastering mode "stuck" use it */ 107 if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) { 108 ctlr->r_type1 = SYS_RES_IOPORT; 109 ctlr->r_rid1 = ATA_BMADDR_RID; 110 ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1, &ctlr->r_rid1, 111 RF_ACTIVE); 112 } 113 114 if (ctlr->chipinit(dev)) { 115 if (ctlr->r_res1) 116 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, 117 ctlr->r_res1); 118 return ENXIO; 119 } 120 121 /* attach all channels on this controller */ 122 for (unit = 0; unit < ctlr->channels; unit++) { 123 if ((ctlr->ichannels & (1 << unit)) == 0) 124 continue; 125 child = device_add_child(dev, "ata", 126 ((unit == 0 || unit == 1) && ctlr->legacy) ? 127 unit : devclass_find_free_unit(ata_devclass, 2)); 128 if (child == NULL) 129 device_printf(dev, "failed to add ata child device\n"); 130 else 131 device_set_ivars(child, (void *)(intptr_t)unit); 132 } 133 bus_generic_attach(dev); 134 return 0; 135} 136 137int 138ata_pci_detach(device_t dev) 139{ 140 struct ata_pci_controller *ctlr = device_get_softc(dev); 141 142 /* detach & delete all children */ 143 device_delete_children(dev); 144 145 if (ctlr->r_irq) { 146 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle); 147 bus_release_resource(dev, SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq); 148 if (ctlr->r_irq_rid != ATA_IRQ_RID) 149 pci_release_msi(dev); 150 } 151 if (ctlr->chipdeinit != NULL) 152 ctlr->chipdeinit(dev); 153 if (ctlr->r_res2) { 154 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2); 155 } 156 if (ctlr->r_res1) { 157 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1); 158 } 159 160 return 0; 161} 162 163int 164ata_pci_suspend(device_t dev) 165{ 166 struct ata_pci_controller *ctlr = device_get_softc(dev); 167 int error = 0; 168 169 bus_generic_suspend(dev); 170 if (ctlr->suspend) 171 error = ctlr->suspend(dev); 172 return error; 173} 174 175int 176ata_pci_resume(device_t dev) 177{ 178 struct ata_pci_controller *ctlr = device_get_softc(dev); 179 int error = 0; 180 181 if (ctlr->resume) 182 error = ctlr->resume(dev); 183 bus_generic_resume(dev); 184 return error; 185} 186 187int 188ata_pci_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 189{ 190 191 return (BUS_READ_IVAR(device_get_parent(dev), dev, which, result)); 192} 193 194int 195ata_pci_write_ivar(device_t dev, device_t child, int which, uintptr_t value) 196{ 197 198 return (BUS_WRITE_IVAR(device_get_parent(dev), dev, which, value)); 199} 200 201uint32_t 202ata_pci_read_config(device_t dev, device_t child, int reg, int width) 203{ 204 205 return (pci_read_config(dev, reg, width)); 206} 207 208void 209ata_pci_write_config(device_t dev, device_t child, int reg, 210 uint32_t val, int width) 211{ 212 213 pci_write_config(dev, reg, val, width); 214} 215 216struct resource * 217ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, 218 rman_res_t start, rman_res_t end, rman_res_t count, 219 u_int flags) 220{ 221 struct ata_pci_controller *controller = device_get_softc(dev); 222 struct resource *res = NULL; 223 224 if (device_get_devclass(child) == ata_devclass) { 225 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 226 int myrid; 227 228 if (type == SYS_RES_IOPORT) { 229 switch (*rid) { 230 case ATA_IOADDR_RID: 231 if (controller->legacy) { 232 start = (unit ? ATA_SECONDARY : ATA_PRIMARY); 233 count = ATA_IOSIZE; 234 end = start + count - 1; 235 } 236 myrid = PCIR_BAR(0) + (unit << 3); 237 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 238 SYS_RES_IOPORT, &myrid, 239 start, end, count, flags); 240 break; 241 case ATA_CTLADDR_RID: 242 if (controller->legacy) { 243 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) + 244 ATA_CTLOFFSET; 245 count = ATA_CTLIOSIZE; 246 end = start + count - 1; 247 } 248 myrid = PCIR_BAR(1) + (unit << 3); 249 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 250 SYS_RES_IOPORT, &myrid, 251 start, end, count, flags); 252 break; 253 } 254 } 255 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) { 256 if (controller->legacy) { 257 int irq = (unit == 0 ? 14 : 15); 258 259 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 260 SYS_RES_IRQ, rid, irq, irq, 1, flags); 261 } else 262 res = controller->r_irq; 263 } 264 } else { 265 if (type == SYS_RES_IRQ) { 266 if (*rid != ATA_IRQ_RID) 267 return (NULL); 268 res = controller->r_irq; 269 } else { 270 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 271 type, rid, start, end, count, flags); 272 } 273 } 274 return (res); 275} 276 277int 278ata_pci_release_resource(device_t dev, device_t child, int type, int rid, 279 struct resource *r) 280{ 281 282 if (device_get_devclass(child) == ata_devclass) { 283 struct ata_pci_controller *controller = device_get_softc(dev); 284 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 285 286 if (type == SYS_RES_IOPORT) { 287 switch (rid) { 288 case ATA_IOADDR_RID: 289 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 290 SYS_RES_IOPORT, 291 PCIR_BAR(0) + (unit << 3), r); 292 case ATA_CTLADDR_RID: 293 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 294 SYS_RES_IOPORT, 295 PCIR_BAR(1) + (unit << 3), r); 296 default: 297 return ENOENT; 298 } 299 } 300 if (type == SYS_RES_IRQ) { 301 if (rid != ATA_IRQ_RID) 302 return ENOENT; 303 if (controller->legacy) { 304 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 305 SYS_RES_IRQ, rid, r); 306 } else 307 return 0; 308 } 309 } else { 310 if (type == SYS_RES_IRQ) { 311 if (rid != ATA_IRQ_RID) 312 return (ENOENT); 313 return (0); 314 } else { 315 return (BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 316 type, rid, r)); 317 } 318 } 319 return (EINVAL); 320} 321 322int 323ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 324 int flags, driver_filter_t *filter, driver_intr_t *function, 325 void *argument, void **cookiep) 326{ 327 struct ata_pci_controller *controller = device_get_softc(dev); 328 329 if (controller->legacy) { 330 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 331 flags, filter, function, argument, cookiep); 332 } else { 333 struct ata_pci_controller *controller = device_get_softc(dev); 334 int unit; 335 336 if (filter != NULL) { 337 printf("ata-pci.c: we cannot use a filter here\n"); 338 return (EINVAL); 339 } 340 if (device_get_devclass(child) == ata_devclass) 341 unit = ((struct ata_channel *)device_get_softc(child))->unit; 342 else 343 unit = ATA_PCI_MAX_CH - 1; 344 controller->interrupt[unit].function = function; 345 controller->interrupt[unit].argument = argument; 346 *cookiep = controller; 347 return 0; 348 } 349} 350 351int 352ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 353 void *cookie) 354{ 355 struct ata_pci_controller *controller = device_get_softc(dev); 356 357 if (controller->legacy) { 358 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 359 } else { 360 struct ata_pci_controller *controller = device_get_softc(dev); 361 int unit; 362 363 if (device_get_devclass(child) == ata_devclass) 364 unit = ((struct ata_channel *)device_get_softc(child))->unit; 365 else 366 unit = ATA_PCI_MAX_CH - 1; 367 controller->interrupt[unit].function = NULL; 368 controller->interrupt[unit].argument = NULL; 369 return 0; 370 } 371} 372 373int 374ata_generic_setmode(device_t dev, int target, int mode) 375{ 376 377 return (min(mode, ATA_UDMA2)); 378} 379 380int 381ata_generic_chipinit(device_t dev) 382{ 383 struct ata_pci_controller *ctlr = device_get_softc(dev); 384 385 if (ata_setup_interrupt(dev, ata_generic_intr)) 386 return ENXIO; 387 ctlr->setmode = ata_generic_setmode; 388 return 0; 389} 390 391int 392ata_pci_ch_attach(device_t dev) 393{ 394 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 395 struct ata_channel *ch = device_get_softc(dev); 396 struct resource *io = NULL, *ctlio = NULL; 397 int i, rid; 398 399 rid = ATA_IOADDR_RID; 400 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 401 return ENXIO; 402 403 rid = ATA_CTLADDR_RID; 404 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 405 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 406 return ENXIO; 407 } 408 409 ata_pci_dmainit(dev); 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 = ctlr->legacy ? 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 430int 431ata_pci_ch_detach(device_t dev) 432{ 433 struct ata_channel *ch = device_get_softc(dev); 434 435 ata_pci_dmafini(dev); 436 437 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, 438 ch->r_io[ATA_CONTROL].res); 439 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, 440 ch->r_io[ATA_IDX_ADDR].res); 441 442 return (0); 443} 444 445int 446ata_pci_status(device_t dev) 447{ 448 struct ata_pci_controller *controller = 449 device_get_softc(device_get_parent(dev)); 450 struct ata_channel *ch = device_get_softc(dev); 451 452 if ((dumping || !controller->legacy) && 453 ((ch->flags & ATA_ALWAYS_DMASTAT) || 454 (ch->dma.flags & ATA_DMA_ACTIVE))) { 455 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 456 457 if ((bmstat & ATA_BMSTAT_INTERRUPT) == 0) 458 return 0; 459 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 460 DELAY(1); 461 } 462 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 463 DELAY(100); 464 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 465 return 0; 466 } 467 return 1; 468} 469 470void 471ata_pci_hw(device_t dev) 472{ 473 struct ata_channel *ch = device_get_softc(dev); 474 475 ata_generic_hw(dev); 476 ch->hw.status = ata_pci_status; 477} 478 479static int 480ata_pci_dmastart(struct ata_request *request) 481{ 482 struct ata_channel *ch = device_get_softc(request->parent); 483 484 ATA_DEBUG_RQ(request, "dmastart"); 485 486 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 487 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 488 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus); 489 ch->dma.flags |= ATA_DMA_ACTIVE; 490 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 491 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) | 492 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0)| 493 ATA_BMCMD_START_STOP); 494 return 0; 495} 496 497static int 498ata_pci_dmastop(struct ata_request *request) 499{ 500 struct ata_channel *ch = device_get_softc(request->parent); 501 int error; 502 503 ATA_DEBUG_RQ(request, "dmastop"); 504 505 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 506 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 507 ch->dma.flags &= ~ATA_DMA_ACTIVE; 508 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 509 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 510 return error; 511} 512 513static void 514ata_pci_dmareset(device_t dev) 515{ 516 struct ata_channel *ch = device_get_softc(dev); 517 struct ata_request *request; 518 519 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 520 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 521 ch->dma.flags &= ~ATA_DMA_ACTIVE; 522 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 523 if ((request = ch->running)) { 524 device_printf(dev, "DMA reset calling unload\n"); 525 ch->dma.unload(request); 526 } 527} 528 529void 530ata_pci_dmainit(device_t dev) 531{ 532 struct ata_channel *ch = device_get_softc(dev); 533 534 ata_dmainit(dev); 535 ch->dma.start = ata_pci_dmastart; 536 ch->dma.stop = ata_pci_dmastop; 537 ch->dma.reset = ata_pci_dmareset; 538} 539 540void 541ata_pci_dmafini(device_t dev) 542{ 543 544 ata_dmafini(dev); 545} 546 547int 548ata_pci_print_child(device_t dev, device_t child) 549{ 550 int retval; 551 552 retval = bus_print_child_header(dev, child); 553 retval += printf(" at channel %d", 554 (int)(intptr_t)device_get_ivars(child)); 555 retval += bus_print_child_footer(dev, child); 556 557 return (retval); 558} 559 560int 561ata_pci_child_location_str(device_t dev, device_t child, char *buf, 562 size_t buflen) 563{ 564 565 snprintf(buf, buflen, "channel=%d", 566 (int)(intptr_t)device_get_ivars(child)); 567 return (0); 568} 569 570static bus_dma_tag_t 571ata_pci_get_dma_tag(device_t bus, device_t child) 572{ 573 574 return (bus_get_dma_tag(bus)); 575} 576 577static device_method_t ata_pci_methods[] = { 578 /* device interface */ 579 DEVMETHOD(device_probe, ata_pci_probe), 580 DEVMETHOD(device_attach, ata_pci_attach), 581 DEVMETHOD(device_detach, ata_pci_detach), 582 DEVMETHOD(device_suspend, ata_pci_suspend), 583 DEVMETHOD(device_resume, ata_pci_resume), 584 DEVMETHOD(device_shutdown, bus_generic_shutdown), 585 586 /* bus methods */ 587 DEVMETHOD(bus_read_ivar, ata_pci_read_ivar), 588 DEVMETHOD(bus_write_ivar, ata_pci_write_ivar), 589 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource), 590 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 591 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 592 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 593 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 594 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 595 DEVMETHOD(pci_read_config, ata_pci_read_config), 596 DEVMETHOD(pci_write_config, ata_pci_write_config), 597 DEVMETHOD(bus_print_child, ata_pci_print_child), 598 DEVMETHOD(bus_child_location_str, ata_pci_child_location_str), 599 DEVMETHOD(bus_get_dma_tag, ata_pci_get_dma_tag), 600 601 DEVMETHOD_END 602}; 603 604devclass_t ata_pci_devclass; 605 606static driver_t ata_pci_driver = { 607 "atapci", 608 ata_pci_methods, 609 sizeof(struct ata_pci_controller), 610}; 611 612DRIVER_MODULE(atapci, pci, ata_pci_driver, ata_pci_devclass, NULL, NULL); 613MODULE_VERSION(atapci, 1); 614MODULE_DEPEND(atapci, ata, 1, 1, 1); 615 616static int 617ata_pcichannel_probe(device_t dev) 618{ 619 620 if ((intptr_t)device_get_ivars(dev) < 0) 621 return (ENXIO); 622 device_set_desc(dev, "ATA channel"); 623 624 return ata_probe(dev); 625} 626 627static int 628ata_pcichannel_attach(device_t dev) 629{ 630 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 631 struct ata_channel *ch = device_get_softc(dev); 632 int error; 633 634 if (ch->attached) 635 return (0); 636 ch->attached = 1; 637 638 ch->dev = dev; 639 ch->unit = (intptr_t)device_get_ivars(dev); 640 641 resource_int_value(device_get_name(dev), 642 device_get_unit(dev), "pm_level", &ch->pm_level); 643 644 if ((error = ctlr->ch_attach(dev))) 645 return error; 646 647 return ata_attach(dev); 648} 649 650static int 651ata_pcichannel_detach(device_t dev) 652{ 653 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 654 struct ata_channel *ch = device_get_softc(dev); 655 int error; 656 657 if (!ch->attached) 658 return (0); 659 ch->attached = 0; 660 661 if ((error = ata_detach(dev))) 662 return error; 663 664 if (ctlr->ch_detach) 665 return (ctlr->ch_detach(dev)); 666 667 return (0); 668} 669static int 670ata_pcichannel_suspend(device_t dev) 671{ 672 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 673 struct ata_channel *ch = device_get_softc(dev); 674 int error; 675 676 if (!ch->attached) 677 return (0); 678 679 if ((error = ata_suspend(dev))) 680 return (error); 681 682 if (ctlr->ch_suspend != NULL && (error = ctlr->ch_suspend(dev))) 683 return (error); 684 685 return (0); 686} 687 688static int 689ata_pcichannel_resume(device_t dev) 690{ 691 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 692 struct ata_channel *ch = device_get_softc(dev); 693 int error; 694 695 if (!ch->attached) 696 return (0); 697 698 if (ctlr->ch_resume != NULL && (error = ctlr->ch_resume(dev))) 699 return (error); 700 701 return ata_resume(dev); 702} 703 704static void 705ata_pcichannel_reset(device_t dev) 706{ 707 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 708 struct ata_channel *ch = device_get_softc(dev); 709 710 /* if DMA engine present reset it */ 711 if (ch->dma.reset) 712 ch->dma.reset(dev); 713 714 /* reset the controller HW */ 715 if (ctlr->reset) 716 ctlr->reset(dev); 717 else 718 ata_generic_reset(dev); 719} 720 721static int 722ata_pcichannel_setmode(device_t dev, int target, int mode) 723{ 724 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 725 726 if (ctlr->setmode) 727 return (ctlr->setmode(dev, target, mode)); 728 else 729 return (ata_generic_setmode(dev, target, mode)); 730} 731 732static int 733ata_pcichannel_getrev(device_t dev, int target) 734{ 735 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 736 struct ata_channel *ch = device_get_softc(dev); 737 738 if (ch->flags & ATA_SATA) { 739 if (ctlr->getrev) 740 return (ctlr->getrev(dev, target)); 741 else 742 return (0xff); 743 } else 744 return (0); 745} 746 747static device_method_t ata_pcichannel_methods[] = { 748 /* device interface */ 749 DEVMETHOD(device_probe, ata_pcichannel_probe), 750 DEVMETHOD(device_attach, ata_pcichannel_attach), 751 DEVMETHOD(device_detach, ata_pcichannel_detach), 752 DEVMETHOD(device_shutdown, bus_generic_shutdown), 753 DEVMETHOD(device_suspend, ata_pcichannel_suspend), 754 DEVMETHOD(device_resume, ata_pcichannel_resume), 755 756 /* ATA methods */ 757 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 758 DEVMETHOD(ata_getrev, ata_pcichannel_getrev), 759 DEVMETHOD(ata_reset, ata_pcichannel_reset), 760 761 DEVMETHOD_END 762}; 763 764driver_t ata_pcichannel_driver = { 765 "ata", 766 ata_pcichannel_methods, 767 sizeof(struct ata_channel), 768}; 769 770DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, NULL, NULL); 771 772/* 773 * misc support fucntions 774 */ 775int 776ata_legacy(device_t dev) 777{ 778 return (((pci_read_config(dev, PCIR_SUBCLASS, 1) == PCIS_STORAGE_IDE) && 779 (pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV)&& 780 ((pci_read_config(dev, PCIR_PROGIF, 1) & 781 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) != 782 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))) || 783 (!pci_read_config(dev, PCIR_BAR(0), 4) && 784 !pci_read_config(dev, PCIR_BAR(1), 4) && 785 !pci_read_config(dev, PCIR_BAR(2), 4) && 786 !pci_read_config(dev, PCIR_BAR(3), 4) && 787 !pci_read_config(dev, PCIR_BAR(5), 4))); 788} 789 790void 791ata_generic_intr(void *data) 792{ 793 struct ata_pci_controller *ctlr = data; 794 struct ata_channel *ch; 795 int unit; 796 797 for (unit = 0; unit < ATA_PCI_MAX_CH; unit++) { 798 if ((ch = ctlr->interrupt[unit].argument)) 799 ctlr->interrupt[unit].function(ch); 800 } 801} 802 803int 804ata_setup_interrupt(device_t dev, void *intr_func) 805{ 806 struct ata_pci_controller *ctlr = device_get_softc(dev); 807 int i, msi = 0; 808 809 if (!ctlr->legacy) { 810 if (resource_int_value(device_get_name(dev), 811 device_get_unit(dev), "msi", &i) == 0 && i != 0) 812 msi = 1; 813 if (msi && pci_msi_count(dev) > 0 && pci_alloc_msi(dev, &msi) == 0) { 814 ctlr->r_irq_rid = 0x1; 815 } else { 816 msi = 0; 817 ctlr->r_irq_rid = ATA_IRQ_RID; 818 } 819 if (!(ctlr->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 820 &ctlr->r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 821 device_printf(dev, "unable to map interrupt\n"); 822 if (msi) 823 pci_release_msi(dev); 824 return ENXIO; 825 } 826 if ((bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL, 827 intr_func, ctlr, &ctlr->handle))) { 828 device_printf(dev, "unable to setup interrupt\n"); 829 bus_release_resource(dev, 830 SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq); 831 if (msi) 832 pci_release_msi(dev); 833 return ENXIO; 834 } 835 } 836 return 0; 837} 838 839void 840ata_set_desc(device_t dev) 841{ 842 struct ata_pci_controller *ctlr = device_get_softc(dev); 843 char buffer[128]; 844 845 sprintf(buffer, "%s %s %s controller", 846 ata_pcivendor2str(dev), ctlr->chip->text, 847 ata_mode2str(ctlr->chip->max_dma)); 848 device_set_desc_copy(dev, buffer); 849} 850 851const struct ata_chip_id * 852ata_match_chip(device_t dev, const struct ata_chip_id *index) 853{ 854 uint32_t devid; 855 uint8_t revid; 856 857 devid = pci_get_devid(dev); 858 revid = pci_get_revid(dev); 859 while (index->chipid != 0) { 860 if (devid == index->chipid && revid >= index->chiprev) 861 return (index); 862 index++; 863 } 864 return (NULL); 865} 866 867const struct ata_chip_id * 868ata_find_chip(device_t dev, const struct ata_chip_id *index, int slot) 869{ 870 const struct ata_chip_id *idx; 871 device_t *children; 872 int nchildren, i; 873 uint8_t s; 874 875 if (device_get_children(device_get_parent(dev), &children, &nchildren)) 876 return (NULL); 877 878 for (i = 0; i < nchildren; i++) { 879 s = pci_get_slot(children[i]); 880 if ((slot >= 0 && s == slot) || (slot < 0 && s <= -slot)) { 881 idx = ata_match_chip(children[i], index); 882 if (idx != NULL) { 883 free(children, M_TEMP); 884 return (idx); 885 } 886 } 887 } 888 free(children, M_TEMP); 889 return (NULL); 890} 891 892const char * 893ata_pcivendor2str(device_t dev) 894{ 895 switch (pci_get_vendor(dev)) { 896 case ATA_ACARD_ID: return "Acard"; 897 case ATA_ACER_LABS_ID: return "AcerLabs"; 898 case ATA_AMD_ID: return "AMD"; 899 case ATA_ADAPTEC_ID: return "Adaptec"; 900 case ATA_ATI_ID: return "ATI"; 901 case ATA_CYRIX_ID: return "Cyrix"; 902 case ATA_CYPRESS_ID: return "Cypress"; 903 case ATA_HIGHPOINT_ID: return "HighPoint"; 904 case ATA_INTEL_ID: return "Intel"; 905 case ATA_ITE_ID: return "ITE"; 906 case ATA_JMICRON_ID: return "JMicron"; 907 case ATA_MARVELL_ID: return "Marvell"; 908 case ATA_MARVELL2_ID: return "Marvell"; 909 case ATA_NATIONAL_ID: return "National"; 910 case ATA_NETCELL_ID: return "Netcell"; 911 case ATA_NVIDIA_ID: return "nVidia"; 912 case ATA_PROMISE_ID: return "Promise"; 913 case ATA_SERVERWORKS_ID: return "ServerWorks"; 914 case ATA_SILICON_IMAGE_ID: return "SiI"; 915 case ATA_SIS_ID: return "SiS"; 916 case ATA_VIA_ID: return "VIA"; 917 case ATA_CENATEK_ID: return "Cenatek"; 918 case ATA_MICRON_ID: return "Micron"; 919 default: return "Generic"; 920 } 921} 922 923int 924ata_mode2idx(int mode) 925{ 926 if ((mode & ATA_DMA_MASK) == ATA_UDMA0) 927 return (mode & ATA_MODE_MASK) + 8; 928 if ((mode & ATA_DMA_MASK) == ATA_WDMA0) 929 return (mode & ATA_MODE_MASK) + 5; 930 return (mode & ATA_MODE_MASK) - ATA_PIO0; 931} 932