1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 1998 - 2008 Søren 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 53 MALLOC_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 */ 61 int 62 ata_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 83 int 84 ata_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 return ENXIO; 116 117 /* attach all channels on this controller */ 118 for (unit = 0; unit < ctlr->channels; unit++) { 119 if ((ctlr->ichannels & (1 << unit)) == 0) 120 continue; 121 child = device_add_child(dev, "ata", 122 ((unit == 0 || unit == 1) && ctlr->legacy) ? 123 unit : devclass_find_free_unit(ata_devclass, 2)); 124 if (child == NULL) 125 device_printf(dev, "failed to add ata child device\n"); 126 else 127 device_set_ivars(child, (void *)(intptr_t)unit); 128 } 129 bus_generic_attach(dev); 130 return 0; 131 } 132 133 int 134 ata_pci_detach(device_t dev) 135 { 136 struct ata_pci_controller *ctlr = device_get_softc(dev); 137 138 /* detach & delete all children */ 139 device_delete_children(dev); 140 141 if (ctlr->r_irq) { 142 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle); 143 bus_release_resource(dev, SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq); 144 if (ctlr->r_irq_rid != ATA_IRQ_RID) 145 pci_release_msi(dev); 146 } 147 if (ctlr->chipdeinit != NULL) 148 ctlr->chipdeinit(dev); 149 if (ctlr->r_res2) { 150 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2); 151 } 152 if (ctlr->r_res1) { 153 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1); 154 } 155 156 return 0; 157 } 158 159 int 160 ata_pci_suspend(device_t dev) 161 { 162 struct ata_pci_controller *ctlr = device_get_softc(dev); 163 int error = 0; 164 165 bus_generic_suspend(dev); 166 if (ctlr->suspend) 167 error = ctlr->suspend(dev); 168 return error; 169 } 170 171 int 172 ata_pci_resume(device_t dev) 173 { 174 struct ata_pci_controller *ctlr = device_get_softc(dev); 175 int error = 0; 176 177 if (ctlr->resume) 178 error = ctlr->resume(dev); 179 bus_generic_resume(dev); 180 return error; 181 } 182 183 int 184 ata_pci_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 185 { 186 187 return (BUS_READ_IVAR(device_get_parent(dev), dev, which, result)); 188 } 189 190 int 191 ata_pci_write_ivar(device_t dev, device_t child, int which, uintptr_t value) 192 { 193 194 return (BUS_WRITE_IVAR(device_get_parent(dev), dev, which, value)); 195 } 196 197 uint32_t 198 ata_pci_read_config(device_t dev, device_t child, int reg, int width) 199 { 200 201 return (pci_read_config(dev, reg, width)); 202 } 203 204 void 205 ata_pci_write_config(device_t dev, device_t child, int reg, 206 uint32_t val, int width) 207 { 208 209 pci_write_config(dev, reg, val, width); 210 } 211 212 struct resource * 213 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, 214 rman_res_t start, rman_res_t end, rman_res_t count, 215 u_int flags) 216 { 217 struct ata_pci_controller *controller = device_get_softc(dev); 218 struct resource *res = NULL; 219 220 if (device_get_devclass(child) == ata_devclass) { 221 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 222 int myrid; 223 224 if (type == SYS_RES_IOPORT) { 225 switch (*rid) { 226 case ATA_IOADDR_RID: 227 if (controller->legacy) { 228 start = (unit ? ATA_SECONDARY : ATA_PRIMARY); 229 count = ATA_IOSIZE; 230 end = start + count - 1; 231 } 232 myrid = PCIR_BAR(0) + (unit << 3); 233 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 234 SYS_RES_IOPORT, &myrid, 235 start, end, count, flags); 236 break; 237 case ATA_CTLADDR_RID: 238 if (controller->legacy) { 239 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) + 240 ATA_CTLOFFSET; 241 count = ATA_CTLIOSIZE; 242 end = start + count - 1; 243 } 244 myrid = PCIR_BAR(1) + (unit << 3); 245 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 246 SYS_RES_IOPORT, &myrid, 247 start, end, count, flags); 248 break; 249 } 250 } 251 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) { 252 if (controller->legacy) { 253 int irq = (unit == 0 ? 14 : 15); 254 255 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 256 SYS_RES_IRQ, rid, irq, irq, 1, flags); 257 } else 258 res = controller->r_irq; 259 } 260 } else { 261 if (type == SYS_RES_IRQ) { 262 if (*rid != ATA_IRQ_RID) 263 return (NULL); 264 res = controller->r_irq; 265 } else { 266 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 267 type, rid, start, end, count, flags); 268 } 269 } 270 return (res); 271 } 272 273 int 274 ata_pci_release_resource(device_t dev, device_t child, int type, int rid, 275 struct resource *r) 276 { 277 278 if (device_get_devclass(child) == ata_devclass) { 279 struct ata_pci_controller *controller = device_get_softc(dev); 280 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 281 282 if (type == SYS_RES_IOPORT) { 283 switch (rid) { 284 case ATA_IOADDR_RID: 285 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 286 SYS_RES_IOPORT, 287 PCIR_BAR(0) + (unit << 3), r); 288 case ATA_CTLADDR_RID: 289 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 290 SYS_RES_IOPORT, 291 PCIR_BAR(1) + (unit << 3), r); 292 default: 293 return ENOENT; 294 } 295 } 296 if (type == SYS_RES_IRQ) { 297 if (rid != ATA_IRQ_RID) 298 return ENOENT; 299 if (controller->legacy) { 300 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 301 SYS_RES_IRQ, rid, r); 302 } else 303 return 0; 304 } 305 } else { 306 if (type == SYS_RES_IRQ) { 307 if (rid != ATA_IRQ_RID) 308 return (ENOENT); 309 return (0); 310 } else { 311 return (BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 312 type, rid, r)); 313 } 314 } 315 return (EINVAL); 316 } 317 318 int 319 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 320 int flags, driver_filter_t *filter, driver_intr_t *function, 321 void *argument, void **cookiep) 322 { 323 struct ata_pci_controller *controller = device_get_softc(dev); 324 325 if (controller->legacy) { 326 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 327 flags, filter, function, argument, cookiep); 328 } else { 329 struct ata_pci_controller *controller = device_get_softc(dev); 330 int unit; 331 332 if (filter != NULL) { 333 printf("ata-pci.c: we cannot use a filter here\n"); 334 return (EINVAL); 335 } 336 if (device_get_devclass(child) == ata_devclass) 337 unit = ((struct ata_channel *)device_get_softc(child))->unit; 338 else 339 unit = ATA_PCI_MAX_CH - 1; 340 controller->interrupt[unit].function = function; 341 controller->interrupt[unit].argument = argument; 342 *cookiep = controller; 343 return 0; 344 } 345 } 346 347 int 348 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 349 void *cookie) 350 { 351 struct ata_pci_controller *controller = device_get_softc(dev); 352 353 if (controller->legacy) { 354 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 355 } else { 356 struct ata_pci_controller *controller = device_get_softc(dev); 357 int unit; 358 359 if (device_get_devclass(child) == ata_devclass) 360 unit = ((struct ata_channel *)device_get_softc(child))->unit; 361 else 362 unit = ATA_PCI_MAX_CH - 1; 363 controller->interrupt[unit].function = NULL; 364 controller->interrupt[unit].argument = NULL; 365 return 0; 366 } 367 } 368 369 int 370 ata_generic_setmode(device_t dev, int target, int mode) 371 { 372 373 return (min(mode, ATA_UDMA2)); 374 } 375 376 int 377 ata_generic_chipinit(device_t dev) 378 { 379 struct ata_pci_controller *ctlr = device_get_softc(dev); 380 381 if (ata_setup_interrupt(dev, ata_generic_intr)) 382 return ENXIO; 383 ctlr->setmode = ata_generic_setmode; 384 return 0; 385 } 386 387 int 388 ata_pci_ch_attach(device_t dev) 389 { 390 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 391 struct ata_channel *ch = device_get_softc(dev); 392 struct resource *io = NULL, *ctlio = NULL; 393 int i, rid; 394 395 rid = ATA_IOADDR_RID; 396 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 397 return ENXIO; 398 399 rid = ATA_CTLADDR_RID; 400 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 401 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 402 return ENXIO; 403 } 404 405 ata_pci_dmainit(dev); 406 407 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 408 ch->r_io[i].res = io; 409 ch->r_io[i].offset = i; 410 } 411 ch->r_io[ATA_CONTROL].res = ctlio; 412 ch->r_io[ATA_CONTROL].offset = ctlr->legacy ? 0 : 2; 413 ch->r_io[ATA_IDX_ADDR].res = io; 414 ata_default_registers(dev); 415 if (ctlr->r_res1) { 416 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 417 ch->r_io[i].res = ctlr->r_res1; 418 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE); 419 } 420 } 421 422 ata_pci_hw(dev); 423 return 0; 424 } 425 426 int 427 ata_pci_ch_detach(device_t dev) 428 { 429 struct ata_channel *ch = device_get_softc(dev); 430 431 ata_pci_dmafini(dev); 432 433 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, 434 ch->r_io[ATA_CONTROL].res); 435 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, 436 ch->r_io[ATA_IDX_ADDR].res); 437 438 return (0); 439 } 440 441 int 442 ata_pci_status(device_t dev) 443 { 444 struct ata_pci_controller *controller = 445 device_get_softc(device_get_parent(dev)); 446 struct ata_channel *ch = device_get_softc(dev); 447 448 if ((dumping || !controller->legacy) && 449 ((ch->flags & ATA_ALWAYS_DMASTAT) || 450 (ch->dma.flags & ATA_DMA_ACTIVE))) { 451 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 452 453 if ((bmstat & ATA_BMSTAT_INTERRUPT) == 0) 454 return 0; 455 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 456 DELAY(1); 457 } 458 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 459 DELAY(100); 460 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 461 return 0; 462 } 463 return 1; 464 } 465 466 void 467 ata_pci_hw(device_t dev) 468 { 469 struct ata_channel *ch = device_get_softc(dev); 470 471 ata_generic_hw(dev); 472 ch->hw.status = ata_pci_status; 473 } 474 475 static int 476 ata_pci_dmastart(struct ata_request *request) 477 { 478 struct ata_channel *ch = device_get_softc(request->parent); 479 480 ATA_DEBUG_RQ(request, "dmastart"); 481 482 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 483 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 484 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus); 485 ch->dma.flags |= ATA_DMA_ACTIVE; 486 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 487 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) | 488 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0)| 489 ATA_BMCMD_START_STOP); 490 return 0; 491 } 492 493 static int 494 ata_pci_dmastop(struct ata_request *request) 495 { 496 struct ata_channel *ch = device_get_softc(request->parent); 497 int error; 498 499 ATA_DEBUG_RQ(request, "dmastop"); 500 501 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 502 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 503 ch->dma.flags &= ~ATA_DMA_ACTIVE; 504 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 505 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 506 return error; 507 } 508 509 static void 510 ata_pci_dmareset(device_t dev) 511 { 512 struct ata_channel *ch = device_get_softc(dev); 513 struct ata_request *request; 514 515 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 516 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 517 ch->dma.flags &= ~ATA_DMA_ACTIVE; 518 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 519 if ((request = ch->running)) { 520 device_printf(dev, "DMA reset calling unload\n"); 521 ch->dma.unload(request); 522 } 523 } 524 525 void 526 ata_pci_dmainit(device_t dev) 527 { 528 struct ata_channel *ch = device_get_softc(dev); 529 530 ata_dmainit(dev); 531 ch->dma.start = ata_pci_dmastart; 532 ch->dma.stop = ata_pci_dmastop; 533 ch->dma.reset = ata_pci_dmareset; 534 } 535 536 void 537 ata_pci_dmafini(device_t dev) 538 { 539 540 ata_dmafini(dev); 541 } 542 543 int 544 ata_pci_print_child(device_t dev, device_t child) 545 { 546 int retval; 547 548 retval = bus_print_child_header(dev, child); 549 retval += printf(" at channel %d", 550 (int)(intptr_t)device_get_ivars(child)); 551 retval += bus_print_child_footer(dev, child); 552 553 return (retval); 554 } 555 556 int 557 ata_pci_child_location_str(device_t dev, device_t child, char *buf, 558 size_t buflen) 559 { 560 561 snprintf(buf, buflen, "channel=%d", 562 (int)(intptr_t)device_get_ivars(child)); 563 return (0); 564 } 565 566 static bus_dma_tag_t 567 ata_pci_get_dma_tag(device_t bus, device_t child) 568 { 569 570 return (bus_get_dma_tag(bus)); 571 } 572 573 static device_method_t ata_pci_methods[] = { 574 /* device interface */ 575 DEVMETHOD(device_probe, ata_pci_probe), 576 DEVMETHOD(device_attach, ata_pci_attach), 577 DEVMETHOD(device_detach, ata_pci_detach), 578 DEVMETHOD(device_suspend, ata_pci_suspend), 579 DEVMETHOD(device_resume, ata_pci_resume), 580 DEVMETHOD(device_shutdown, bus_generic_shutdown), 581 582 /* bus methods */ 583 DEVMETHOD(bus_read_ivar, ata_pci_read_ivar), 584 DEVMETHOD(bus_write_ivar, ata_pci_write_ivar), 585 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource), 586 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 587 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 588 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 589 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 590 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 591 DEVMETHOD(pci_read_config, ata_pci_read_config), 592 DEVMETHOD(pci_write_config, ata_pci_write_config), 593 DEVMETHOD(bus_print_child, ata_pci_print_child), 594 DEVMETHOD(bus_child_location_str, ata_pci_child_location_str), 595 DEVMETHOD(bus_get_dma_tag, ata_pci_get_dma_tag), 596 597 DEVMETHOD_END 598 }; 599 600 devclass_t ata_pci_devclass; 601 602 static driver_t ata_pci_driver = { 603 "atapci", 604 ata_pci_methods, 605 sizeof(struct ata_pci_controller), 606 }; 607 608 DRIVER_MODULE(atapci, pci, ata_pci_driver, ata_pci_devclass, NULL, NULL); 609 MODULE_VERSION(atapci, 1); 610 MODULE_DEPEND(atapci, ata, 1, 1, 1); 611 612 static int 613 ata_pcichannel_probe(device_t dev) 614 { 615 616 if ((intptr_t)device_get_ivars(dev) < 0) 617 return (ENXIO); 618 device_set_desc(dev, "ATA channel"); 619 620 return ata_probe(dev); 621 } 622 623 static int 624 ata_pcichannel_attach(device_t dev) 625 { 626 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 627 struct ata_channel *ch = device_get_softc(dev); 628 int error; 629 630 if (ch->attached) 631 return (0); 632 ch->attached = 1; 633 634 ch->dev = dev; 635 ch->unit = (intptr_t)device_get_ivars(dev); 636 637 resource_int_value(device_get_name(dev), 638 device_get_unit(dev), "pm_level", &ch->pm_level); 639 640 if ((error = ctlr->ch_attach(dev))) 641 return error; 642 643 return ata_attach(dev); 644 } 645 646 static int 647 ata_pcichannel_detach(device_t dev) 648 { 649 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 650 struct ata_channel *ch = device_get_softc(dev); 651 int error; 652 653 if (!ch->attached) 654 return (0); 655 ch->attached = 0; 656 657 if ((error = ata_detach(dev))) 658 return error; 659 660 if (ctlr->ch_detach) 661 return (ctlr->ch_detach(dev)); 662 663 return (0); 664 } 665 static int 666 ata_pcichannel_suspend(device_t dev) 667 { 668 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 669 struct ata_channel *ch = device_get_softc(dev); 670 int error; 671 672 if (!ch->attached) 673 return (0); 674 675 if ((error = ata_suspend(dev))) 676 return (error); 677 678 if (ctlr->ch_suspend != NULL && (error = ctlr->ch_suspend(dev))) 679 return (error); 680 681 return (0); 682 } 683 684 static int 685 ata_pcichannel_resume(device_t dev) 686 { 687 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 688 struct ata_channel *ch = device_get_softc(dev); 689 int error; 690 691 if (!ch->attached) 692 return (0); 693 694 if (ctlr->ch_resume != NULL && (error = ctlr->ch_resume(dev))) 695 return (error); 696 697 return ata_resume(dev); 698 } 699 700 static void 701 ata_pcichannel_reset(device_t dev) 702 { 703 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 704 struct ata_channel *ch = device_get_softc(dev); 705 706 /* if DMA engine present reset it */ 707 if (ch->dma.reset) 708 ch->dma.reset(dev); 709 710 /* reset the controller HW */ 711 if (ctlr->reset) 712 ctlr->reset(dev); 713 else 714 ata_generic_reset(dev); 715 } 716 717 static int 718 ata_pcichannel_setmode(device_t dev, int target, int mode) 719 { 720 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 721 722 if (ctlr->setmode) 723 return (ctlr->setmode(dev, target, mode)); 724 else 725 return (ata_generic_setmode(dev, target, mode)); 726 } 727 728 static int 729 ata_pcichannel_getrev(device_t dev, int target) 730 { 731 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 732 struct ata_channel *ch = device_get_softc(dev); 733 734 if (ch->flags & ATA_SATA) { 735 if (ctlr->getrev) 736 return (ctlr->getrev(dev, target)); 737 else 738 return (0xff); 739 } else 740 return (0); 741 } 742 743 static device_method_t ata_pcichannel_methods[] = { 744 /* device interface */ 745 DEVMETHOD(device_probe, ata_pcichannel_probe), 746 DEVMETHOD(device_attach, ata_pcichannel_attach), 747 DEVMETHOD(device_detach, ata_pcichannel_detach), 748 DEVMETHOD(device_shutdown, bus_generic_shutdown), 749 DEVMETHOD(device_suspend, ata_pcichannel_suspend), 750 DEVMETHOD(device_resume, ata_pcichannel_resume), 751 752 /* ATA methods */ 753 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 754 DEVMETHOD(ata_getrev, ata_pcichannel_getrev), 755 DEVMETHOD(ata_reset, ata_pcichannel_reset), 756 757 DEVMETHOD_END 758 }; 759 760 driver_t ata_pcichannel_driver = { 761 "ata", 762 ata_pcichannel_methods, 763 sizeof(struct ata_channel), 764 }; 765 766 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, NULL, NULL); 767 768 /* 769 * misc support fucntions 770 */ 771 int 772 ata_legacy(device_t dev) 773 { 774 return (((pci_read_config(dev, PCIR_SUBCLASS, 1) == PCIS_STORAGE_IDE) && 775 (pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV)&& 776 ((pci_read_config(dev, PCIR_PROGIF, 1) & 777 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) != 778 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))) || 779 (!pci_read_config(dev, PCIR_BAR(0), 4) && 780 !pci_read_config(dev, PCIR_BAR(1), 4) && 781 !pci_read_config(dev, PCIR_BAR(2), 4) && 782 !pci_read_config(dev, PCIR_BAR(3), 4) && 783 !pci_read_config(dev, PCIR_BAR(5), 4))); 784 } 785 786 void 787 ata_generic_intr(void *data) 788 { 789 struct ata_pci_controller *ctlr = data; 790 struct ata_channel *ch; 791 int unit; 792 793 for (unit = 0; unit < ATA_PCI_MAX_CH; unit++) { 794 if ((ch = ctlr->interrupt[unit].argument)) 795 ctlr->interrupt[unit].function(ch); 796 } 797 } 798 799 int 800 ata_setup_interrupt(device_t dev, void *intr_func) 801 { 802 struct ata_pci_controller *ctlr = device_get_softc(dev); 803 int i, msi = 0; 804 805 if (!ctlr->legacy) { 806 if (resource_int_value(device_get_name(dev), 807 device_get_unit(dev), "msi", &i) == 0 && i != 0) 808 msi = 1; 809 if (msi && pci_msi_count(dev) > 0 && pci_alloc_msi(dev, &msi) == 0) { 810 ctlr->r_irq_rid = 0x1; 811 } else { 812 msi = 0; 813 ctlr->r_irq_rid = ATA_IRQ_RID; 814 } 815 if (!(ctlr->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 816 &ctlr->r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 817 device_printf(dev, "unable to map interrupt\n"); 818 if (msi) 819 pci_release_msi(dev); 820 return ENXIO; 821 } 822 if ((bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL, 823 intr_func, ctlr, &ctlr->handle))) { 824 device_printf(dev, "unable to setup interrupt\n"); 825 bus_release_resource(dev, 826 SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq); 827 if (msi) 828 pci_release_msi(dev); 829 return ENXIO; 830 } 831 } 832 return 0; 833 } 834 835 void 836 ata_set_desc(device_t dev) 837 { 838 struct ata_pci_controller *ctlr = device_get_softc(dev); 839 char buffer[128]; 840 841 sprintf(buffer, "%s %s %s controller", 842 ata_pcivendor2str(dev), ctlr->chip->text, 843 ata_mode2str(ctlr->chip->max_dma)); 844 device_set_desc_copy(dev, buffer); 845 } 846 847 const struct ata_chip_id * 848 ata_match_chip(device_t dev, const struct ata_chip_id *index) 849 { 850 uint32_t devid; 851 uint8_t revid; 852 853 devid = pci_get_devid(dev); 854 revid = pci_get_revid(dev); 855 while (index->chipid != 0) { 856 if (devid == index->chipid && revid >= index->chiprev) 857 return (index); 858 index++; 859 } 860 return (NULL); 861 } 862 863 const struct ata_chip_id * 864 ata_find_chip(device_t dev, const struct ata_chip_id *index, int slot) 865 { 866 const struct ata_chip_id *idx; 867 device_t *children; 868 int nchildren, i; 869 uint8_t s; 870 871 if (device_get_children(device_get_parent(dev), &children, &nchildren)) 872 return (NULL); 873 874 for (i = 0; i < nchildren; i++) { 875 s = pci_get_slot(children[i]); 876 if ((slot >= 0 && s == slot) || (slot < 0 && s <= -slot)) { 877 idx = ata_match_chip(children[i], index); 878 if (idx != NULL) { 879 free(children, M_TEMP); 880 return (idx); 881 } 882 } 883 } 884 free(children, M_TEMP); 885 return (NULL); 886 } 887 888 const char * 889 ata_pcivendor2str(device_t dev) 890 { 891 switch (pci_get_vendor(dev)) { 892 case ATA_ACARD_ID: return "Acard"; 893 case ATA_ACER_LABS_ID: return "AcerLabs"; 894 case ATA_AMD_ID: return "AMD"; 895 case ATA_ADAPTEC_ID: return "Adaptec"; 896 case ATA_ATI_ID: return "ATI"; 897 case ATA_CYRIX_ID: return "Cyrix"; 898 case ATA_CYPRESS_ID: return "Cypress"; 899 case ATA_HIGHPOINT_ID: return "HighPoint"; 900 case ATA_INTEL_ID: return "Intel"; 901 case ATA_ITE_ID: return "ITE"; 902 case ATA_JMICRON_ID: return "JMicron"; 903 case ATA_MARVELL_ID: return "Marvell"; 904 case ATA_MARVELL2_ID: return "Marvell"; 905 case ATA_NATIONAL_ID: return "National"; 906 case ATA_NETCELL_ID: return "Netcell"; 907 case ATA_NVIDIA_ID: return "nVidia"; 908 case ATA_PROMISE_ID: return "Promise"; 909 case ATA_SERVERWORKS_ID: return "ServerWorks"; 910 case ATA_SILICON_IMAGE_ID: return "SiI"; 911 case ATA_SIS_ID: return "SiS"; 912 case ATA_VIA_ID: return "VIA"; 913 case ATA_CENATEK_ID: return "Cenatek"; 914 case ATA_MICRON_ID: return "Micron"; 915 default: return "Generic"; 916 } 917 } 918 919 int 920 ata_mode2idx(int mode) 921 { 922 if ((mode & ATA_DMA_MASK) == ATA_UDMA0) 923 return (mode & ATA_MODE_MASK) + 8; 924 if ((mode & ATA_DMA_MASK) == ATA_WDMA0) 925 return (mode & ATA_MODE_MASK) + 5; 926 return (mode & ATA_MODE_MASK) - ATA_PIO0; 927 } 928