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