1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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/param.h> 30 #include <sys/systm.h> 31 #include <sys/kernel.h> 32 #include <sys/module.h> 33 #include <sys/ata.h> 34 #include <sys/bus.h> 35 #include <sys/conf.h> 36 #include <sys/malloc.h> 37 #include <sys/sbuf.h> 38 #include <sys/sema.h> 39 #include <sys/taskqueue.h> 40 #include <vm/uma.h> 41 #include <machine/stdarg.h> 42 #include <machine/resource.h> 43 #include <machine/bus.h> 44 #include <sys/rman.h> 45 #include <dev/pci/pcivar.h> 46 #include <dev/pci/pcireg.h> 47 #include <dev/ata/ata-all.h> 48 #include <dev/ata/ata-pci.h> 49 #include <ata_if.h> 50 51 MALLOC_DEFINE(M_ATAPCI, "ata_pci", "ATA driver PCI"); 52 53 /* misc defines */ 54 #define IOMASK 0xfffffffc 55 56 /* 57 * generic PCI ATA device probe 58 */ 59 int 60 ata_pci_probe(device_t dev) 61 { 62 struct ata_pci_controller *ctlr = device_get_softc(dev); 63 64 /* is this a storage class device ? */ 65 if (pci_get_class(dev) != PCIC_STORAGE) 66 return (ENXIO); 67 68 /* is this an IDE/ATA type device ? */ 69 if (pci_get_subclass(dev) != PCIS_STORAGE_IDE) 70 return (ENXIO); 71 72 device_set_descf(dev, "%s ATA controller", ata_pcivendor2str(dev)); 73 ctlr->chipinit = ata_generic_chipinit; 74 75 /* we are a low priority handler */ 76 return (BUS_PROBE_GENERIC); 77 } 78 79 int 80 ata_pci_attach(device_t dev) 81 { 82 struct ata_pci_controller *ctlr = device_get_softc(dev); 83 device_t child; 84 u_int32_t cmd; 85 int unit; 86 87 /* do chipset specific setups only needed once */ 88 ctlr->legacy = ata_legacy(dev); 89 if (ctlr->legacy || pci_read_config(dev, PCIR_BAR(2), 4) & IOMASK) 90 ctlr->channels = 2; 91 else 92 ctlr->channels = 1; 93 ctlr->ichannels = -1; 94 ctlr->ch_attach = ata_pci_ch_attach; 95 ctlr->ch_detach = ata_pci_ch_detach; 96 ctlr->dev = dev; 97 98 /* if needed try to enable busmastering */ 99 pci_enable_busmaster(dev); 100 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 101 102 /* if busmastering mode "stuck" use it */ 103 if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) { 104 ctlr->r_type1 = SYS_RES_IOPORT; 105 ctlr->r_rid1 = ATA_BMADDR_RID; 106 ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1, &ctlr->r_rid1, 107 RF_ACTIVE); 108 } 109 110 if (ctlr->chipinit(dev)) { 111 if (ctlr->r_res1) 112 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, 113 ctlr->r_res1); 114 return ENXIO; 115 } 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, struct resource *r) 275 { 276 int rid = rman_get_rid(r); 277 int type = rman_get_type(r); 278 279 if (device_get_devclass(child) == ata_devclass) { 280 struct ata_pci_controller *controller = device_get_softc(dev); 281 282 if (type == SYS_RES_IOPORT) { 283 switch (rid) { 284 case ATA_IOADDR_RID: 285 case ATA_CTLADDR_RID: 286 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 287 r); 288 default: 289 return ENOENT; 290 } 291 } 292 if (type == SYS_RES_IRQ) { 293 if (rid != ATA_IRQ_RID) 294 return ENOENT; 295 if (controller->legacy) { 296 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 297 r); 298 } else 299 return 0; 300 } 301 } else { 302 if (type == SYS_RES_IRQ) { 303 if (rid != ATA_IRQ_RID) 304 return (ENOENT); 305 return (0); 306 } else { 307 return (BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 308 r)); 309 } 310 } 311 return (EINVAL); 312 } 313 314 int 315 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 316 int flags, driver_filter_t *filter, driver_intr_t *function, 317 void *argument, void **cookiep) 318 { 319 struct ata_pci_controller *controller = device_get_softc(dev); 320 321 if (controller->legacy) { 322 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 323 flags, filter, function, argument, cookiep); 324 } else { 325 struct ata_pci_controller *controller = device_get_softc(dev); 326 int unit; 327 328 if (filter != NULL) { 329 printf("ata-pci.c: we cannot use a filter here\n"); 330 return (EINVAL); 331 } 332 if (device_get_devclass(child) == ata_devclass) 333 unit = ((struct ata_channel *)device_get_softc(child))->unit; 334 else 335 unit = ATA_PCI_MAX_CH - 1; 336 controller->interrupt[unit].function = function; 337 controller->interrupt[unit].argument = argument; 338 *cookiep = controller; 339 return 0; 340 } 341 } 342 343 int 344 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 345 void *cookie) 346 { 347 struct ata_pci_controller *controller = device_get_softc(dev); 348 349 if (controller->legacy) { 350 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 351 } else { 352 struct ata_pci_controller *controller = device_get_softc(dev); 353 int unit; 354 355 if (device_get_devclass(child) == ata_devclass) 356 unit = ((struct ata_channel *)device_get_softc(child))->unit; 357 else 358 unit = ATA_PCI_MAX_CH - 1; 359 controller->interrupt[unit].function = NULL; 360 controller->interrupt[unit].argument = NULL; 361 return 0; 362 } 363 } 364 365 int 366 ata_generic_setmode(device_t dev, int target, int mode) 367 { 368 369 return (min(mode, ATA_UDMA2)); 370 } 371 372 int 373 ata_generic_chipinit(device_t dev) 374 { 375 struct ata_pci_controller *ctlr = device_get_softc(dev); 376 377 if (ata_setup_interrupt(dev, ata_generic_intr)) 378 return ENXIO; 379 ctlr->setmode = ata_generic_setmode; 380 return 0; 381 } 382 383 int 384 ata_pci_ch_attach(device_t dev) 385 { 386 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 387 struct ata_channel *ch = device_get_softc(dev); 388 struct resource *io = NULL, *ctlio = NULL; 389 int i, rid; 390 391 rid = ATA_IOADDR_RID; 392 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 393 return ENXIO; 394 395 rid = ATA_CTLADDR_RID; 396 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 397 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 398 return ENXIO; 399 } 400 401 ata_pci_dmainit(dev); 402 403 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 404 ch->r_io[i].res = io; 405 ch->r_io[i].offset = i; 406 } 407 ch->r_io[ATA_CONTROL].res = ctlio; 408 ch->r_io[ATA_CONTROL].offset = ctlr->legacy ? 0 : 2; 409 ch->r_io[ATA_IDX_ADDR].res = io; 410 ata_default_registers(dev); 411 if (ctlr->r_res1) { 412 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 413 ch->r_io[i].res = ctlr->r_res1; 414 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE); 415 } 416 } 417 418 ata_pci_hw(dev); 419 return 0; 420 } 421 422 int 423 ata_pci_ch_detach(device_t dev) 424 { 425 struct ata_channel *ch = device_get_softc(dev); 426 427 ata_pci_dmafini(dev); 428 429 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, 430 ch->r_io[ATA_CONTROL].res); 431 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, 432 ch->r_io[ATA_IDX_ADDR].res); 433 434 return (0); 435 } 436 437 int 438 ata_pci_status(device_t dev) 439 { 440 struct ata_pci_controller *controller = 441 device_get_softc(device_get_parent(dev)); 442 struct ata_channel *ch = device_get_softc(dev); 443 444 if ((dumping || !controller->legacy) && 445 ((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_INTERRUPT) == 0) 450 return 0; 451 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 452 DELAY(1); 453 } 454 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 455 DELAY(100); 456 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 457 return 0; 458 } 459 return 1; 460 } 461 462 void 463 ata_pci_hw(device_t dev) 464 { 465 struct ata_channel *ch = device_get_softc(dev); 466 467 ata_generic_hw(dev); 468 ch->hw.status = ata_pci_status; 469 } 470 471 static int 472 ata_pci_dmastart(struct ata_request *request) 473 { 474 struct ata_channel *ch = device_get_softc(request->parent); 475 476 ATA_DEBUG_RQ(request, "dmastart"); 477 478 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 479 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 480 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus); 481 ch->dma.flags |= ATA_DMA_ACTIVE; 482 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 483 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) | 484 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0)| 485 ATA_BMCMD_START_STOP); 486 return 0; 487 } 488 489 static int 490 ata_pci_dmastop(struct ata_request *request) 491 { 492 struct ata_channel *ch = device_get_softc(request->parent); 493 int error; 494 495 ATA_DEBUG_RQ(request, "dmastop"); 496 497 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 498 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 499 ch->dma.flags &= ~ATA_DMA_ACTIVE; 500 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 501 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 502 return error; 503 } 504 505 static void 506 ata_pci_dmareset(device_t dev) 507 { 508 struct ata_channel *ch = device_get_softc(dev); 509 struct ata_request *request; 510 511 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 512 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 513 ch->dma.flags &= ~ATA_DMA_ACTIVE; 514 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 515 if ((request = ch->running)) { 516 device_printf(dev, "DMA reset calling unload\n"); 517 ch->dma.unload(request); 518 } 519 } 520 521 void 522 ata_pci_dmainit(device_t dev) 523 { 524 struct ata_channel *ch = device_get_softc(dev); 525 526 ata_dmainit(dev); 527 ch->dma.start = ata_pci_dmastart; 528 ch->dma.stop = ata_pci_dmastop; 529 ch->dma.reset = ata_pci_dmareset; 530 } 531 532 void 533 ata_pci_dmafini(device_t dev) 534 { 535 536 ata_dmafini(dev); 537 } 538 539 int 540 ata_pci_print_child(device_t dev, device_t child) 541 { 542 int retval; 543 544 retval = bus_print_child_header(dev, child); 545 retval += printf(" at channel %d", 546 (int)(intptr_t)device_get_ivars(child)); 547 retval += bus_print_child_footer(dev, child); 548 549 return (retval); 550 } 551 552 int 553 ata_pci_child_location(device_t dev, device_t child, struct sbuf *sb) 554 { 555 556 sbuf_printf(sb, "channel=%d", 557 (int)(intptr_t)device_get_ivars(child)); 558 return (0); 559 } 560 561 static bus_dma_tag_t 562 ata_pci_get_dma_tag(device_t bus, device_t child) 563 { 564 565 return (bus_get_dma_tag(bus)); 566 } 567 568 static device_method_t ata_pci_methods[] = { 569 /* device interface */ 570 DEVMETHOD(device_probe, ata_pci_probe), 571 DEVMETHOD(device_attach, ata_pci_attach), 572 DEVMETHOD(device_detach, ata_pci_detach), 573 DEVMETHOD(device_suspend, ata_pci_suspend), 574 DEVMETHOD(device_resume, ata_pci_resume), 575 DEVMETHOD(device_shutdown, bus_generic_shutdown), 576 577 /* bus methods */ 578 DEVMETHOD(bus_read_ivar, ata_pci_read_ivar), 579 DEVMETHOD(bus_write_ivar, ata_pci_write_ivar), 580 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource), 581 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 582 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 583 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 584 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 585 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 586 DEVMETHOD(pci_read_config, ata_pci_read_config), 587 DEVMETHOD(pci_write_config, ata_pci_write_config), 588 DEVMETHOD(bus_print_child, ata_pci_print_child), 589 DEVMETHOD(bus_child_location, ata_pci_child_location), 590 DEVMETHOD(bus_get_dma_tag, ata_pci_get_dma_tag), 591 592 DEVMETHOD_END 593 }; 594 595 static driver_t ata_pci_driver = { 596 "atapci", 597 ata_pci_methods, 598 sizeof(struct ata_pci_controller), 599 }; 600 601 DRIVER_MODULE(atapci, pci, ata_pci_driver, NULL, NULL); 602 MODULE_VERSION(atapci, 1); 603 MODULE_DEPEND(atapci, ata, 1, 1, 1); 604 605 static int 606 ata_pcichannel_probe(device_t dev) 607 { 608 609 if ((intptr_t)device_get_ivars(dev) < 0) 610 return (ENXIO); 611 device_set_desc(dev, "ATA channel"); 612 613 return ata_probe(dev); 614 } 615 616 static int 617 ata_pcichannel_attach(device_t dev) 618 { 619 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 620 struct ata_channel *ch = device_get_softc(dev); 621 int error; 622 623 if (ch->attached) 624 return (0); 625 ch->attached = 1; 626 627 ch->dev = dev; 628 ch->unit = (intptr_t)device_get_ivars(dev); 629 630 resource_int_value(device_get_name(dev), 631 device_get_unit(dev), "pm_level", &ch->pm_level); 632 633 if ((error = ctlr->ch_attach(dev))) 634 return error; 635 636 return ata_attach(dev); 637 } 638 639 static int 640 ata_pcichannel_detach(device_t dev) 641 { 642 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 643 struct ata_channel *ch = device_get_softc(dev); 644 int error; 645 646 if (!ch->attached) 647 return (0); 648 ch->attached = 0; 649 650 if ((error = ata_detach(dev))) 651 return error; 652 653 if (ctlr->ch_detach) 654 return (ctlr->ch_detach(dev)); 655 656 return (0); 657 } 658 static int 659 ata_pcichannel_suspend(device_t dev) 660 { 661 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 662 struct ata_channel *ch = device_get_softc(dev); 663 int error; 664 665 if (!ch->attached) 666 return (0); 667 668 if ((error = ata_suspend(dev))) 669 return (error); 670 671 if (ctlr->ch_suspend != NULL && (error = ctlr->ch_suspend(dev))) 672 return (error); 673 674 return (0); 675 } 676 677 static int 678 ata_pcichannel_resume(device_t dev) 679 { 680 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 681 struct ata_channel *ch = device_get_softc(dev); 682 int error; 683 684 if (!ch->attached) 685 return (0); 686 687 if (ctlr->ch_resume != NULL && (error = ctlr->ch_resume(dev))) 688 return (error); 689 690 return ata_resume(dev); 691 } 692 693 static void 694 ata_pcichannel_reset(device_t dev) 695 { 696 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 697 struct ata_channel *ch = device_get_softc(dev); 698 699 /* if DMA engine present reset it */ 700 if (ch->dma.reset) 701 ch->dma.reset(dev); 702 703 /* reset the controller HW */ 704 if (ctlr->reset) 705 ctlr->reset(dev); 706 else 707 ata_generic_reset(dev); 708 } 709 710 static int 711 ata_pcichannel_setmode(device_t dev, int target, int mode) 712 { 713 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 714 715 if (ctlr->setmode) 716 return (ctlr->setmode(dev, target, mode)); 717 else 718 return (ata_generic_setmode(dev, target, mode)); 719 } 720 721 static int 722 ata_pcichannel_getrev(device_t dev, int target) 723 { 724 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 725 struct ata_channel *ch = device_get_softc(dev); 726 727 if (ch->flags & ATA_SATA) { 728 if (ctlr->getrev) 729 return (ctlr->getrev(dev, target)); 730 else 731 return (0xff); 732 } else 733 return (0); 734 } 735 736 static device_method_t ata_pcichannel_methods[] = { 737 /* device interface */ 738 DEVMETHOD(device_probe, ata_pcichannel_probe), 739 DEVMETHOD(device_attach, ata_pcichannel_attach), 740 DEVMETHOD(device_detach, ata_pcichannel_detach), 741 DEVMETHOD(device_shutdown, bus_generic_shutdown), 742 DEVMETHOD(device_suspend, ata_pcichannel_suspend), 743 DEVMETHOD(device_resume, ata_pcichannel_resume), 744 745 /* ATA methods */ 746 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 747 DEVMETHOD(ata_getrev, ata_pcichannel_getrev), 748 DEVMETHOD(ata_reset, ata_pcichannel_reset), 749 750 DEVMETHOD_END 751 }; 752 753 driver_t ata_pcichannel_driver = { 754 "ata", 755 ata_pcichannel_methods, 756 sizeof(struct ata_channel), 757 }; 758 759 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, NULL, NULL); 760 761 /* 762 * misc support functions 763 */ 764 int 765 ata_legacy(device_t dev) 766 { 767 return (((pci_read_config(dev, PCIR_SUBCLASS, 1) == PCIS_STORAGE_IDE) && 768 (pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV)&& 769 ((pci_read_config(dev, PCIR_PROGIF, 1) & 770 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) != 771 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))) || 772 (!pci_read_config(dev, PCIR_BAR(0), 4) && 773 !pci_read_config(dev, PCIR_BAR(1), 4) && 774 !pci_read_config(dev, PCIR_BAR(2), 4) && 775 !pci_read_config(dev, PCIR_BAR(3), 4) && 776 !pci_read_config(dev, PCIR_BAR(5), 4))); 777 } 778 779 void 780 ata_generic_intr(void *data) 781 { 782 struct ata_pci_controller *ctlr = data; 783 struct ata_channel *ch; 784 int unit; 785 786 for (unit = 0; unit < ATA_PCI_MAX_CH; unit++) { 787 if ((ch = ctlr->interrupt[unit].argument)) 788 ctlr->interrupt[unit].function(ch); 789 } 790 } 791 792 int 793 ata_setup_interrupt(device_t dev, void *intr_func) 794 { 795 struct ata_pci_controller *ctlr = device_get_softc(dev); 796 int i, msi = 0; 797 798 if (!ctlr->legacy) { 799 if (resource_int_value(device_get_name(dev), 800 device_get_unit(dev), "msi", &i) == 0 && i != 0) 801 msi = 1; 802 if (msi && pci_msi_count(dev) > 0 && pci_alloc_msi(dev, &msi) == 0) { 803 ctlr->r_irq_rid = 0x1; 804 } else { 805 msi = 0; 806 ctlr->r_irq_rid = ATA_IRQ_RID; 807 } 808 if (!(ctlr->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 809 &ctlr->r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 810 device_printf(dev, "unable to map interrupt\n"); 811 if (msi) 812 pci_release_msi(dev); 813 return ENXIO; 814 } 815 if ((bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL, 816 intr_func, ctlr, &ctlr->handle))) { 817 device_printf(dev, "unable to setup interrupt\n"); 818 bus_release_resource(dev, 819 SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq); 820 if (msi) 821 pci_release_msi(dev); 822 return ENXIO; 823 } 824 } 825 return 0; 826 } 827 828 void 829 ata_set_desc(device_t dev) 830 { 831 struct ata_pci_controller *ctlr = device_get_softc(dev); 832 833 device_set_descf(dev, "%s %s %s controller", 834 ata_pcivendor2str(dev), ctlr->chip->text, 835 ata_mode2str(ctlr->chip->max_dma)); 836 } 837 838 const struct ata_chip_id * 839 ata_match_chip(device_t dev, const struct ata_chip_id *index) 840 { 841 uint32_t devid; 842 uint8_t revid; 843 844 devid = pci_get_devid(dev); 845 revid = pci_get_revid(dev); 846 while (index->chipid != 0) { 847 if (devid == index->chipid && revid >= index->chiprev) 848 return (index); 849 index++; 850 } 851 return (NULL); 852 } 853 854 const struct ata_chip_id * 855 ata_find_chip(device_t dev, const struct ata_chip_id *index, int slot) 856 { 857 const struct ata_chip_id *idx; 858 device_t *children; 859 int nchildren, i; 860 uint8_t s; 861 862 if (device_get_children(device_get_parent(dev), &children, &nchildren)) 863 return (NULL); 864 865 for (i = 0; i < nchildren; i++) { 866 s = pci_get_slot(children[i]); 867 if ((slot >= 0 && s == slot) || (slot < 0 && s <= -slot)) { 868 idx = ata_match_chip(children[i], index); 869 if (idx != NULL) { 870 free(children, M_TEMP); 871 return (idx); 872 } 873 } 874 } 875 free(children, M_TEMP); 876 return (NULL); 877 } 878 879 const char * 880 ata_pcivendor2str(device_t dev) 881 { 882 switch (pci_get_vendor(dev)) { 883 case ATA_ACARD_ID: return "Acard"; 884 case ATA_ACER_LABS_ID: return "AcerLabs"; 885 case ATA_AMD_ID: return "AMD"; 886 case ATA_ADAPTEC_ID: return "Adaptec"; 887 case ATA_ATI_ID: return "ATI"; 888 case ATA_CYRIX_ID: return "Cyrix"; 889 case ATA_CYPRESS_ID: return "Cypress"; 890 case ATA_HIGHPOINT_ID: return "HighPoint"; 891 case ATA_INTEL_ID: return "Intel"; 892 case ATA_ITE_ID: return "ITE"; 893 case ATA_JMICRON_ID: return "JMicron"; 894 case ATA_MARVELL_ID: return "Marvell"; 895 case ATA_MARVELL2_ID: return "Marvell"; 896 case ATA_NATIONAL_ID: return "National"; 897 case ATA_NETCELL_ID: return "Netcell"; 898 case ATA_NVIDIA_ID: return "nVidia"; 899 case ATA_PROMISE_ID: return "Promise"; 900 case ATA_SERVERWORKS_ID: return "ServerWorks"; 901 case ATA_SILICON_IMAGE_ID: return "SiI"; 902 case ATA_SIS_ID: return "SiS"; 903 case ATA_VIA_ID: return "VIA"; 904 case ATA_CENATEK_ID: return "Cenatek"; 905 case ATA_MICRON_ID: return "Micron"; 906 default: return "Generic"; 907 } 908 } 909 910 int 911 ata_mode2idx(int mode) 912 { 913 if ((mode & ATA_DMA_MASK) == ATA_UDMA0) 914 return (mode & ATA_MODE_MASK) + 8; 915 if ((mode & ATA_DMA_MASK) == ATA_WDMA0) 916 return (mode & ATA_MODE_MASK) + 5; 917 return (mode & ATA_MODE_MASK) - ATA_PIO0; 918 } 919