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 char buffer[64]; 64 65 /* is this a storage class device ? */ 66 if (pci_get_class(dev) != PCIC_STORAGE) 67 return (ENXIO); 68 69 /* is this an IDE/ATA type device ? */ 70 if (pci_get_subclass(dev) != PCIS_STORAGE_IDE) 71 return (ENXIO); 72 73 sprintf(buffer, "%s ATA controller", ata_pcivendor2str(dev)); 74 device_set_desc_copy(dev, buffer); 75 ctlr->chipinit = ata_generic_chipinit; 76 77 /* we are a low priority handler */ 78 return (BUS_PROBE_GENERIC); 79 } 80 81 int 82 ata_pci_attach(device_t dev) 83 { 84 struct ata_pci_controller *ctlr = device_get_softc(dev); 85 device_t child; 86 u_int32_t cmd; 87 int unit; 88 89 /* do chipset specific setups only needed once */ 90 ctlr->legacy = ata_legacy(dev); 91 if (ctlr->legacy || pci_read_config(dev, PCIR_BAR(2), 4) & IOMASK) 92 ctlr->channels = 2; 93 else 94 ctlr->channels = 1; 95 ctlr->ichannels = -1; 96 ctlr->ch_attach = ata_pci_ch_attach; 97 ctlr->ch_detach = ata_pci_ch_detach; 98 ctlr->dev = dev; 99 100 /* if needed try to enable busmastering */ 101 pci_enable_busmaster(dev); 102 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 103 104 /* if busmastering mode "stuck" use it */ 105 if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) { 106 ctlr->r_type1 = SYS_RES_IOPORT; 107 ctlr->r_rid1 = ATA_BMADDR_RID; 108 ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1, &ctlr->r_rid1, 109 RF_ACTIVE); 110 } 111 112 if (ctlr->chipinit(dev)) { 113 if (ctlr->r_res1) 114 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, 115 ctlr->r_res1); 116 return ENXIO; 117 } 118 119 /* attach all channels on this controller */ 120 for (unit = 0; unit < ctlr->channels; unit++) { 121 if ((ctlr->ichannels & (1 << unit)) == 0) 122 continue; 123 child = device_add_child(dev, "ata", 124 ((unit == 0 || unit == 1) && ctlr->legacy) ? 125 unit : devclass_find_free_unit(ata_devclass, 2)); 126 if (child == NULL) 127 device_printf(dev, "failed to add ata child device\n"); 128 else 129 device_set_ivars(child, (void *)(intptr_t)unit); 130 } 131 bus_generic_attach(dev); 132 return 0; 133 } 134 135 int 136 ata_pci_detach(device_t dev) 137 { 138 struct ata_pci_controller *ctlr = device_get_softc(dev); 139 140 /* detach & delete all children */ 141 device_delete_children(dev); 142 143 if (ctlr->r_irq) { 144 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle); 145 bus_release_resource(dev, SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq); 146 if (ctlr->r_irq_rid != ATA_IRQ_RID) 147 pci_release_msi(dev); 148 } 149 if (ctlr->chipdeinit != NULL) 150 ctlr->chipdeinit(dev); 151 if (ctlr->r_res2) { 152 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2); 153 } 154 if (ctlr->r_res1) { 155 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1); 156 } 157 158 return 0; 159 } 160 161 int 162 ata_pci_suspend(device_t dev) 163 { 164 struct ata_pci_controller *ctlr = device_get_softc(dev); 165 int error = 0; 166 167 bus_generic_suspend(dev); 168 if (ctlr->suspend) 169 error = ctlr->suspend(dev); 170 return error; 171 } 172 173 int 174 ata_pci_resume(device_t dev) 175 { 176 struct ata_pci_controller *ctlr = device_get_softc(dev); 177 int error = 0; 178 179 if (ctlr->resume) 180 error = ctlr->resume(dev); 181 bus_generic_resume(dev); 182 return error; 183 } 184 185 int 186 ata_pci_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 187 { 188 189 return (BUS_READ_IVAR(device_get_parent(dev), dev, which, result)); 190 } 191 192 int 193 ata_pci_write_ivar(device_t dev, device_t child, int which, uintptr_t value) 194 { 195 196 return (BUS_WRITE_IVAR(device_get_parent(dev), dev, which, value)); 197 } 198 199 uint32_t 200 ata_pci_read_config(device_t dev, device_t child, int reg, int width) 201 { 202 203 return (pci_read_config(dev, reg, width)); 204 } 205 206 void 207 ata_pci_write_config(device_t dev, device_t child, int reg, 208 uint32_t val, int width) 209 { 210 211 pci_write_config(dev, reg, val, width); 212 } 213 214 struct resource * 215 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, 216 rman_res_t start, rman_res_t end, rman_res_t count, 217 u_int flags) 218 { 219 struct ata_pci_controller *controller = device_get_softc(dev); 220 struct resource *res = NULL; 221 222 if (device_get_devclass(child) == ata_devclass) { 223 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 224 int myrid; 225 226 if (type == SYS_RES_IOPORT) { 227 switch (*rid) { 228 case ATA_IOADDR_RID: 229 if (controller->legacy) { 230 start = (unit ? ATA_SECONDARY : ATA_PRIMARY); 231 count = ATA_IOSIZE; 232 end = start + count - 1; 233 } 234 myrid = PCIR_BAR(0) + (unit << 3); 235 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 236 SYS_RES_IOPORT, &myrid, 237 start, end, count, flags); 238 break; 239 case ATA_CTLADDR_RID: 240 if (controller->legacy) { 241 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) + 242 ATA_CTLOFFSET; 243 count = ATA_CTLIOSIZE; 244 end = start + count - 1; 245 } 246 myrid = PCIR_BAR(1) + (unit << 3); 247 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 248 SYS_RES_IOPORT, &myrid, 249 start, end, count, flags); 250 break; 251 } 252 } 253 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) { 254 if (controller->legacy) { 255 int irq = (unit == 0 ? 14 : 15); 256 257 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 258 SYS_RES_IRQ, rid, irq, irq, 1, flags); 259 } else 260 res = controller->r_irq; 261 } 262 } else { 263 if (type == SYS_RES_IRQ) { 264 if (*rid != ATA_IRQ_RID) 265 return (NULL); 266 res = controller->r_irq; 267 } else { 268 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 269 type, rid, start, end, count, flags); 270 } 271 } 272 return (res); 273 } 274 275 int 276 ata_pci_release_resource(device_t dev, device_t child, struct resource *r) 277 { 278 int rid = rman_get_rid(r); 279 int type = rman_get_type(r); 280 281 if (device_get_devclass(child) == ata_devclass) { 282 struct ata_pci_controller *controller = device_get_softc(dev); 283 284 if (type == SYS_RES_IOPORT) { 285 switch (rid) { 286 case ATA_IOADDR_RID: 287 case ATA_CTLADDR_RID: 288 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 289 r); 290 default: 291 return ENOENT; 292 } 293 } 294 if (type == SYS_RES_IRQ) { 295 if (rid != ATA_IRQ_RID) 296 return ENOENT; 297 if (controller->legacy) { 298 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 299 r); 300 } else 301 return 0; 302 } 303 } else { 304 if (type == SYS_RES_IRQ) { 305 if (rid != ATA_IRQ_RID) 306 return (ENOENT); 307 return (0); 308 } else { 309 return (BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 310 r)); 311 } 312 } 313 return (EINVAL); 314 } 315 316 int 317 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 318 int flags, driver_filter_t *filter, driver_intr_t *function, 319 void *argument, void **cookiep) 320 { 321 struct ata_pci_controller *controller = device_get_softc(dev); 322 323 if (controller->legacy) { 324 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 325 flags, filter, function, argument, cookiep); 326 } else { 327 struct ata_pci_controller *controller = device_get_softc(dev); 328 int unit; 329 330 if (filter != NULL) { 331 printf("ata-pci.c: we cannot use a filter here\n"); 332 return (EINVAL); 333 } 334 if (device_get_devclass(child) == ata_devclass) 335 unit = ((struct ata_channel *)device_get_softc(child))->unit; 336 else 337 unit = ATA_PCI_MAX_CH - 1; 338 controller->interrupt[unit].function = function; 339 controller->interrupt[unit].argument = argument; 340 *cookiep = controller; 341 return 0; 342 } 343 } 344 345 int 346 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 347 void *cookie) 348 { 349 struct ata_pci_controller *controller = device_get_softc(dev); 350 351 if (controller->legacy) { 352 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 353 } else { 354 struct ata_pci_controller *controller = device_get_softc(dev); 355 int unit; 356 357 if (device_get_devclass(child) == ata_devclass) 358 unit = ((struct ata_channel *)device_get_softc(child))->unit; 359 else 360 unit = ATA_PCI_MAX_CH - 1; 361 controller->interrupt[unit].function = NULL; 362 controller->interrupt[unit].argument = NULL; 363 return 0; 364 } 365 } 366 367 int 368 ata_generic_setmode(device_t dev, int target, int mode) 369 { 370 371 return (min(mode, ATA_UDMA2)); 372 } 373 374 int 375 ata_generic_chipinit(device_t dev) 376 { 377 struct ata_pci_controller *ctlr = device_get_softc(dev); 378 379 if (ata_setup_interrupt(dev, ata_generic_intr)) 380 return ENXIO; 381 ctlr->setmode = ata_generic_setmode; 382 return 0; 383 } 384 385 int 386 ata_pci_ch_attach(device_t dev) 387 { 388 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 389 struct ata_channel *ch = device_get_softc(dev); 390 struct resource *io = NULL, *ctlio = NULL; 391 int i, rid; 392 393 rid = ATA_IOADDR_RID; 394 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 395 return ENXIO; 396 397 rid = ATA_CTLADDR_RID; 398 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 399 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 400 return ENXIO; 401 } 402 403 ata_pci_dmainit(dev); 404 405 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 406 ch->r_io[i].res = io; 407 ch->r_io[i].offset = i; 408 } 409 ch->r_io[ATA_CONTROL].res = ctlio; 410 ch->r_io[ATA_CONTROL].offset = ctlr->legacy ? 0 : 2; 411 ch->r_io[ATA_IDX_ADDR].res = io; 412 ata_default_registers(dev); 413 if (ctlr->r_res1) { 414 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 415 ch->r_io[i].res = ctlr->r_res1; 416 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE); 417 } 418 } 419 420 ata_pci_hw(dev); 421 return 0; 422 } 423 424 int 425 ata_pci_ch_detach(device_t dev) 426 { 427 struct ata_channel *ch = device_get_softc(dev); 428 429 ata_pci_dmafini(dev); 430 431 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, 432 ch->r_io[ATA_CONTROL].res); 433 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, 434 ch->r_io[ATA_IDX_ADDR].res); 435 436 return (0); 437 } 438 439 int 440 ata_pci_status(device_t dev) 441 { 442 struct ata_pci_controller *controller = 443 device_get_softc(device_get_parent(dev)); 444 struct ata_channel *ch = device_get_softc(dev); 445 446 if ((dumping || !controller->legacy) && 447 ((ch->flags & ATA_ALWAYS_DMASTAT) || 448 (ch->dma.flags & ATA_DMA_ACTIVE))) { 449 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 450 451 if ((bmstat & ATA_BMSTAT_INTERRUPT) == 0) 452 return 0; 453 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 454 DELAY(1); 455 } 456 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 457 DELAY(100); 458 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 459 return 0; 460 } 461 return 1; 462 } 463 464 void 465 ata_pci_hw(device_t dev) 466 { 467 struct ata_channel *ch = device_get_softc(dev); 468 469 ata_generic_hw(dev); 470 ch->hw.status = ata_pci_status; 471 } 472 473 static int 474 ata_pci_dmastart(struct ata_request *request) 475 { 476 struct ata_channel *ch = device_get_softc(request->parent); 477 478 ATA_DEBUG_RQ(request, "dmastart"); 479 480 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 481 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 482 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus); 483 ch->dma.flags |= ATA_DMA_ACTIVE; 484 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 485 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) | 486 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0)| 487 ATA_BMCMD_START_STOP); 488 return 0; 489 } 490 491 static int 492 ata_pci_dmastop(struct ata_request *request) 493 { 494 struct ata_channel *ch = device_get_softc(request->parent); 495 int error; 496 497 ATA_DEBUG_RQ(request, "dmastop"); 498 499 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 500 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 501 ch->dma.flags &= ~ATA_DMA_ACTIVE; 502 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 503 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 504 return error; 505 } 506 507 static void 508 ata_pci_dmareset(device_t dev) 509 { 510 struct ata_channel *ch = device_get_softc(dev); 511 struct ata_request *request; 512 513 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 514 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 515 ch->dma.flags &= ~ATA_DMA_ACTIVE; 516 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 517 if ((request = ch->running)) { 518 device_printf(dev, "DMA reset calling unload\n"); 519 ch->dma.unload(request); 520 } 521 } 522 523 void 524 ata_pci_dmainit(device_t dev) 525 { 526 struct ata_channel *ch = device_get_softc(dev); 527 528 ata_dmainit(dev); 529 ch->dma.start = ata_pci_dmastart; 530 ch->dma.stop = ata_pci_dmastop; 531 ch->dma.reset = ata_pci_dmareset; 532 } 533 534 void 535 ata_pci_dmafini(device_t dev) 536 { 537 538 ata_dmafini(dev); 539 } 540 541 int 542 ata_pci_print_child(device_t dev, device_t child) 543 { 544 int retval; 545 546 retval = bus_print_child_header(dev, child); 547 retval += printf(" at channel %d", 548 (int)(intptr_t)device_get_ivars(child)); 549 retval += bus_print_child_footer(dev, child); 550 551 return (retval); 552 } 553 554 int 555 ata_pci_child_location(device_t dev, device_t child, struct sbuf *sb) 556 { 557 558 sbuf_printf(sb, "channel=%d", 559 (int)(intptr_t)device_get_ivars(child)); 560 return (0); 561 } 562 563 static bus_dma_tag_t 564 ata_pci_get_dma_tag(device_t bus, device_t child) 565 { 566 567 return (bus_get_dma_tag(bus)); 568 } 569 570 static device_method_t ata_pci_methods[] = { 571 /* device interface */ 572 DEVMETHOD(device_probe, ata_pci_probe), 573 DEVMETHOD(device_attach, ata_pci_attach), 574 DEVMETHOD(device_detach, ata_pci_detach), 575 DEVMETHOD(device_suspend, ata_pci_suspend), 576 DEVMETHOD(device_resume, ata_pci_resume), 577 DEVMETHOD(device_shutdown, bus_generic_shutdown), 578 579 /* bus methods */ 580 DEVMETHOD(bus_read_ivar, ata_pci_read_ivar), 581 DEVMETHOD(bus_write_ivar, ata_pci_write_ivar), 582 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource), 583 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 584 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 585 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 586 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 587 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 588 DEVMETHOD(pci_read_config, ata_pci_read_config), 589 DEVMETHOD(pci_write_config, ata_pci_write_config), 590 DEVMETHOD(bus_print_child, ata_pci_print_child), 591 DEVMETHOD(bus_child_location, ata_pci_child_location), 592 DEVMETHOD(bus_get_dma_tag, ata_pci_get_dma_tag), 593 594 DEVMETHOD_END 595 }; 596 597 static driver_t ata_pci_driver = { 598 "atapci", 599 ata_pci_methods, 600 sizeof(struct ata_pci_controller), 601 }; 602 603 DRIVER_MODULE(atapci, pci, ata_pci_driver, NULL, NULL); 604 MODULE_VERSION(atapci, 1); 605 MODULE_DEPEND(atapci, ata, 1, 1, 1); 606 607 static int 608 ata_pcichannel_probe(device_t dev) 609 { 610 611 if ((intptr_t)device_get_ivars(dev) < 0) 612 return (ENXIO); 613 device_set_desc(dev, "ATA channel"); 614 615 return ata_probe(dev); 616 } 617 618 static int 619 ata_pcichannel_attach(device_t dev) 620 { 621 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 622 struct ata_channel *ch = device_get_softc(dev); 623 int error; 624 625 if (ch->attached) 626 return (0); 627 ch->attached = 1; 628 629 ch->dev = dev; 630 ch->unit = (intptr_t)device_get_ivars(dev); 631 632 resource_int_value(device_get_name(dev), 633 device_get_unit(dev), "pm_level", &ch->pm_level); 634 635 if ((error = ctlr->ch_attach(dev))) 636 return error; 637 638 return ata_attach(dev); 639 } 640 641 static int 642 ata_pcichannel_detach(device_t dev) 643 { 644 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 645 struct ata_channel *ch = device_get_softc(dev); 646 int error; 647 648 if (!ch->attached) 649 return (0); 650 ch->attached = 0; 651 652 if ((error = ata_detach(dev))) 653 return error; 654 655 if (ctlr->ch_detach) 656 return (ctlr->ch_detach(dev)); 657 658 return (0); 659 } 660 static int 661 ata_pcichannel_suspend(device_t dev) 662 { 663 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 664 struct ata_channel *ch = device_get_softc(dev); 665 int error; 666 667 if (!ch->attached) 668 return (0); 669 670 if ((error = ata_suspend(dev))) 671 return (error); 672 673 if (ctlr->ch_suspend != NULL && (error = ctlr->ch_suspend(dev))) 674 return (error); 675 676 return (0); 677 } 678 679 static int 680 ata_pcichannel_resume(device_t dev) 681 { 682 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 683 struct ata_channel *ch = device_get_softc(dev); 684 int error; 685 686 if (!ch->attached) 687 return (0); 688 689 if (ctlr->ch_resume != NULL && (error = ctlr->ch_resume(dev))) 690 return (error); 691 692 return ata_resume(dev); 693 } 694 695 static void 696 ata_pcichannel_reset(device_t dev) 697 { 698 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 699 struct ata_channel *ch = device_get_softc(dev); 700 701 /* if DMA engine present reset it */ 702 if (ch->dma.reset) 703 ch->dma.reset(dev); 704 705 /* reset the controller HW */ 706 if (ctlr->reset) 707 ctlr->reset(dev); 708 else 709 ata_generic_reset(dev); 710 } 711 712 static int 713 ata_pcichannel_setmode(device_t dev, int target, int mode) 714 { 715 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 716 717 if (ctlr->setmode) 718 return (ctlr->setmode(dev, target, mode)); 719 else 720 return (ata_generic_setmode(dev, target, mode)); 721 } 722 723 static int 724 ata_pcichannel_getrev(device_t dev, int target) 725 { 726 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 727 struct ata_channel *ch = device_get_softc(dev); 728 729 if (ch->flags & ATA_SATA) { 730 if (ctlr->getrev) 731 return (ctlr->getrev(dev, target)); 732 else 733 return (0xff); 734 } else 735 return (0); 736 } 737 738 static device_method_t ata_pcichannel_methods[] = { 739 /* device interface */ 740 DEVMETHOD(device_probe, ata_pcichannel_probe), 741 DEVMETHOD(device_attach, ata_pcichannel_attach), 742 DEVMETHOD(device_detach, ata_pcichannel_detach), 743 DEVMETHOD(device_shutdown, bus_generic_shutdown), 744 DEVMETHOD(device_suspend, ata_pcichannel_suspend), 745 DEVMETHOD(device_resume, ata_pcichannel_resume), 746 747 /* ATA methods */ 748 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 749 DEVMETHOD(ata_getrev, ata_pcichannel_getrev), 750 DEVMETHOD(ata_reset, ata_pcichannel_reset), 751 752 DEVMETHOD_END 753 }; 754 755 driver_t ata_pcichannel_driver = { 756 "ata", 757 ata_pcichannel_methods, 758 sizeof(struct ata_channel), 759 }; 760 761 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, NULL, NULL); 762 763 /* 764 * misc support functions 765 */ 766 int 767 ata_legacy(device_t dev) 768 { 769 return (((pci_read_config(dev, PCIR_SUBCLASS, 1) == PCIS_STORAGE_IDE) && 770 (pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV)&& 771 ((pci_read_config(dev, PCIR_PROGIF, 1) & 772 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) != 773 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))) || 774 (!pci_read_config(dev, PCIR_BAR(0), 4) && 775 !pci_read_config(dev, PCIR_BAR(1), 4) && 776 !pci_read_config(dev, PCIR_BAR(2), 4) && 777 !pci_read_config(dev, PCIR_BAR(3), 4) && 778 !pci_read_config(dev, PCIR_BAR(5), 4))); 779 } 780 781 void 782 ata_generic_intr(void *data) 783 { 784 struct ata_pci_controller *ctlr = data; 785 struct ata_channel *ch; 786 int unit; 787 788 for (unit = 0; unit < ATA_PCI_MAX_CH; unit++) { 789 if ((ch = ctlr->interrupt[unit].argument)) 790 ctlr->interrupt[unit].function(ch); 791 } 792 } 793 794 int 795 ata_setup_interrupt(device_t dev, void *intr_func) 796 { 797 struct ata_pci_controller *ctlr = device_get_softc(dev); 798 int i, msi = 0; 799 800 if (!ctlr->legacy) { 801 if (resource_int_value(device_get_name(dev), 802 device_get_unit(dev), "msi", &i) == 0 && i != 0) 803 msi = 1; 804 if (msi && pci_msi_count(dev) > 0 && pci_alloc_msi(dev, &msi) == 0) { 805 ctlr->r_irq_rid = 0x1; 806 } else { 807 msi = 0; 808 ctlr->r_irq_rid = ATA_IRQ_RID; 809 } 810 if (!(ctlr->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 811 &ctlr->r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 812 device_printf(dev, "unable to map interrupt\n"); 813 if (msi) 814 pci_release_msi(dev); 815 return ENXIO; 816 } 817 if ((bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL, 818 intr_func, ctlr, &ctlr->handle))) { 819 device_printf(dev, "unable to setup interrupt\n"); 820 bus_release_resource(dev, 821 SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq); 822 if (msi) 823 pci_release_msi(dev); 824 return ENXIO; 825 } 826 } 827 return 0; 828 } 829 830 void 831 ata_set_desc(device_t dev) 832 { 833 struct ata_pci_controller *ctlr = device_get_softc(dev); 834 char buffer[128]; 835 836 sprintf(buffer, "%s %s %s controller", 837 ata_pcivendor2str(dev), ctlr->chip->text, 838 ata_mode2str(ctlr->chip->max_dma)); 839 device_set_desc_copy(dev, buffer); 840 } 841 842 const struct ata_chip_id * 843 ata_match_chip(device_t dev, const struct ata_chip_id *index) 844 { 845 uint32_t devid; 846 uint8_t revid; 847 848 devid = pci_get_devid(dev); 849 revid = pci_get_revid(dev); 850 while (index->chipid != 0) { 851 if (devid == index->chipid && revid >= index->chiprev) 852 return (index); 853 index++; 854 } 855 return (NULL); 856 } 857 858 const struct ata_chip_id * 859 ata_find_chip(device_t dev, const struct ata_chip_id *index, int slot) 860 { 861 const struct ata_chip_id *idx; 862 device_t *children; 863 int nchildren, i; 864 uint8_t s; 865 866 if (device_get_children(device_get_parent(dev), &children, &nchildren)) 867 return (NULL); 868 869 for (i = 0; i < nchildren; i++) { 870 s = pci_get_slot(children[i]); 871 if ((slot >= 0 && s == slot) || (slot < 0 && s <= -slot)) { 872 idx = ata_match_chip(children[i], index); 873 if (idx != NULL) { 874 free(children, M_TEMP); 875 return (idx); 876 } 877 } 878 } 879 free(children, M_TEMP); 880 return (NULL); 881 } 882 883 const char * 884 ata_pcivendor2str(device_t dev) 885 { 886 switch (pci_get_vendor(dev)) { 887 case ATA_ACARD_ID: return "Acard"; 888 case ATA_ACER_LABS_ID: return "AcerLabs"; 889 case ATA_AMD_ID: return "AMD"; 890 case ATA_ADAPTEC_ID: return "Adaptec"; 891 case ATA_ATI_ID: return "ATI"; 892 case ATA_CYRIX_ID: return "Cyrix"; 893 case ATA_CYPRESS_ID: return "Cypress"; 894 case ATA_HIGHPOINT_ID: return "HighPoint"; 895 case ATA_INTEL_ID: return "Intel"; 896 case ATA_ITE_ID: return "ITE"; 897 case ATA_JMICRON_ID: return "JMicron"; 898 case ATA_MARVELL_ID: return "Marvell"; 899 case ATA_MARVELL2_ID: return "Marvell"; 900 case ATA_NATIONAL_ID: return "National"; 901 case ATA_NETCELL_ID: return "Netcell"; 902 case ATA_NVIDIA_ID: return "nVidia"; 903 case ATA_PROMISE_ID: return "Promise"; 904 case ATA_SERVERWORKS_ID: return "ServerWorks"; 905 case ATA_SILICON_IMAGE_ID: return "SiI"; 906 case ATA_SIS_ID: return "SiS"; 907 case ATA_VIA_ID: return "VIA"; 908 case ATA_CENATEK_ID: return "Cenatek"; 909 case ATA_MICRON_ID: return "Micron"; 910 default: return "Generic"; 911 } 912 } 913 914 int 915 ata_mode2idx(int mode) 916 { 917 if ((mode & ATA_DMA_MASK) == ATA_UDMA0) 918 return (mode & ATA_MODE_MASK) + 8; 919 if ((mode & ATA_DMA_MASK) == ATA_WDMA0) 920 return (mode & ATA_MODE_MASK) + 5; 921 return (mode & ATA_MODE_MASK) - ATA_PIO0; 922 } 923