1 /*- 2 * Copyright (c) 1998 - 2008 S�ren Schmidt <sos@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include "opt_ata.h" 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/kernel.h> 34 #include <sys/module.h> 35 #include <sys/ata.h> 36 #include <sys/bus.h> 37 #include <sys/conf.h> 38 #include <sys/malloc.h> 39 #include <sys/sema.h> 40 #include <sys/taskqueue.h> 41 #include <vm/uma.h> 42 #include <machine/stdarg.h> 43 #include <machine/resource.h> 44 #include <machine/bus.h> 45 #include <sys/rman.h> 46 #include <dev/pci/pcivar.h> 47 #include <dev/pci/pcireg.h> 48 #include <dev/ata/ata-all.h> 49 #include <dev/ata/ata-pci.h> 50 #include <ata_if.h> 51 52 /* local vars */ 53 static 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 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 104 if (!(cmd & PCIM_CMD_BUSMASTEREN)) { 105 pci_write_config(dev, PCIR_COMMAND, cmd | PCIM_CMD_BUSMASTEREN, 2); 106 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 107 } 108 109 /* if busmastering mode "stuck" use it */ 110 if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) { 111 ctlr->r_type1 = SYS_RES_IOPORT; 112 ctlr->r_rid1 = ATA_BMADDR_RID; 113 ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1, &ctlr->r_rid1, 114 RF_ACTIVE); 115 } 116 117 if (ctlr->chipinit(dev)) 118 return ENXIO; 119 120 /* attach all channels on this controller */ 121 for (unit = 0; unit < ctlr->channels; unit++) { 122 if ((ctlr->ichannels & (1 << unit)) == 0) 123 continue; 124 child = device_add_child(dev, "ata", 125 ((unit == 0 || unit == 1) && ctlr->legacy) ? 126 unit : devclass_find_free_unit(ata_devclass, 2)); 127 if (child == NULL) 128 device_printf(dev, "failed to add ata child device\n"); 129 else 130 device_set_ivars(child, (void *)(intptr_t)unit); 131 } 132 bus_generic_attach(dev); 133 return 0; 134 } 135 136 int 137 ata_pci_detach(device_t dev) 138 { 139 struct ata_pci_controller *ctlr = device_get_softc(dev); 140 device_t *children; 141 int nchildren, i; 142 143 /* detach & delete all children */ 144 if (!device_get_children(dev, &children, &nchildren)) { 145 for (i = 0; i < nchildren; i++) 146 device_delete_child(dev, children[i]); 147 free(children, M_TEMP); 148 } 149 150 if (ctlr->r_irq) { 151 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle); 152 bus_release_resource(dev, SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq); 153 if (ctlr->r_irq_rid != ATA_IRQ_RID) 154 pci_release_msi(dev); 155 } 156 if (ctlr->r_res2) 157 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2); 158 if (ctlr->r_res1) 159 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1); 160 161 return 0; 162 } 163 164 int 165 ata_pci_suspend(device_t dev) 166 { 167 struct ata_pci_controller *ctlr = device_get_softc(dev); 168 int error = 0; 169 170 bus_generic_suspend(dev); 171 if (ctlr->suspend) 172 error = ctlr->suspend(dev); 173 return error; 174 } 175 176 int 177 ata_pci_resume(device_t dev) 178 { 179 struct ata_pci_controller *ctlr = device_get_softc(dev); 180 int error = 0; 181 182 if (ctlr->resume) 183 error = ctlr->resume(dev); 184 bus_generic_resume(dev); 185 return error; 186 } 187 188 int 189 ata_pci_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 190 { 191 192 return (BUS_READ_IVAR(device_get_parent(dev), dev, which, result)); 193 } 194 195 int 196 ata_pci_write_ivar(device_t dev, device_t child, int which, uintptr_t value) 197 { 198 199 return (BUS_WRITE_IVAR(device_get_parent(dev), dev, which, value)); 200 } 201 202 uint32_t 203 ata_pci_read_config(device_t dev, device_t child, int reg, int width) 204 { 205 206 return (pci_read_config(dev, reg, width)); 207 } 208 209 void 210 ata_pci_write_config(device_t dev, device_t child, int reg, 211 uint32_t val, int width) 212 { 213 214 pci_write_config(dev, reg, val, width); 215 } 216 217 struct resource * 218 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, 219 u_long start, u_long end, u_long count, u_int flags) 220 { 221 struct ata_pci_controller *controller = device_get_softc(dev); 222 struct resource *res = NULL; 223 224 if (device_get_devclass(child) == ata_devclass) { 225 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 226 int myrid; 227 228 if (type == SYS_RES_IOPORT) { 229 switch (*rid) { 230 case ATA_IOADDR_RID: 231 if (controller->legacy) { 232 start = (unit ? ATA_SECONDARY : ATA_PRIMARY); 233 count = ATA_IOSIZE; 234 end = start + count - 1; 235 } 236 myrid = PCIR_BAR(0) + (unit << 3); 237 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 238 SYS_RES_IOPORT, &myrid, 239 start, end, count, flags); 240 break; 241 case ATA_CTLADDR_RID: 242 if (controller->legacy) { 243 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) + 244 ATA_CTLOFFSET; 245 count = ATA_CTLIOSIZE; 246 end = start + count - 1; 247 } 248 myrid = PCIR_BAR(1) + (unit << 3); 249 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 250 SYS_RES_IOPORT, &myrid, 251 start, end, count, flags); 252 break; 253 } 254 } 255 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) { 256 if (controller->legacy) { 257 int irq = (unit == 0 ? 14 : 15); 258 259 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 260 SYS_RES_IRQ, rid, irq, irq, 1, flags); 261 } else 262 res = controller->r_irq; 263 } 264 } else { 265 if (type == SYS_RES_IRQ) { 266 if (*rid != ATA_IRQ_RID) 267 return (NULL); 268 res = controller->r_irq; 269 } else { 270 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 271 type, rid, start, end, count, flags); 272 } 273 } 274 return (res); 275 } 276 277 int 278 ata_pci_release_resource(device_t dev, device_t child, int type, int rid, 279 struct resource *r) 280 { 281 282 if (device_get_devclass(child) == ata_devclass) { 283 struct ata_pci_controller *controller = device_get_softc(dev); 284 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 285 286 if (type == SYS_RES_IOPORT) { 287 switch (rid) { 288 case ATA_IOADDR_RID: 289 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 290 SYS_RES_IOPORT, 291 PCIR_BAR(0) + (unit << 3), r); 292 case ATA_CTLADDR_RID: 293 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 294 SYS_RES_IOPORT, 295 PCIR_BAR(1) + (unit << 3), r); 296 default: 297 return ENOENT; 298 } 299 } 300 if (type == SYS_RES_IRQ) { 301 if (rid != ATA_IRQ_RID) 302 return ENOENT; 303 if (controller->legacy) { 304 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 305 SYS_RES_IRQ, rid, r); 306 } else 307 return 0; 308 } 309 } else { 310 if (type == SYS_RES_IRQ) { 311 if (rid != ATA_IRQ_RID) 312 return (ENOENT); 313 return (0); 314 } else { 315 return (BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 316 type, rid, r)); 317 } 318 } 319 return (EINVAL); 320 } 321 322 int 323 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 324 int flags, driver_filter_t *filter, driver_intr_t *function, 325 void *argument, void **cookiep) 326 { 327 struct ata_pci_controller *controller = device_get_softc(dev); 328 329 if (controller->legacy) { 330 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 331 flags, filter, function, argument, cookiep); 332 } else { 333 struct ata_pci_controller *controller = device_get_softc(dev); 334 int unit; 335 336 if (filter != NULL) { 337 printf("ata-pci.c: we cannot use a filter here\n"); 338 return (EINVAL); 339 } 340 if (device_get_devclass(child) == ata_devclass) 341 unit = ((struct ata_channel *)device_get_softc(child))->unit; 342 else 343 unit = ATA_PCI_MAX_CH - 1; 344 controller->interrupt[unit].function = function; 345 controller->interrupt[unit].argument = argument; 346 *cookiep = controller; 347 return 0; 348 } 349 } 350 351 int 352 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 353 void *cookie) 354 { 355 struct ata_pci_controller *controller = device_get_softc(dev); 356 357 if (controller->legacy) { 358 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 359 } else { 360 struct ata_pci_controller *controller = device_get_softc(dev); 361 int unit; 362 363 if (device_get_devclass(child) == ata_devclass) 364 unit = ((struct ata_channel *)device_get_softc(child))->unit; 365 else 366 unit = ATA_PCI_MAX_CH - 1; 367 controller->interrupt[unit].function = NULL; 368 controller->interrupt[unit].argument = NULL; 369 return 0; 370 } 371 } 372 373 int 374 ata_generic_setmode(device_t dev, int target, int mode) 375 { 376 377 return (min(mode, ATA_UDMA2)); 378 } 379 380 int 381 ata_generic_chipinit(device_t dev) 382 { 383 struct ata_pci_controller *ctlr = device_get_softc(dev); 384 385 if (ata_setup_interrupt(dev, ata_generic_intr)) 386 return ENXIO; 387 ctlr->setmode = ata_generic_setmode; 388 return 0; 389 } 390 391 int 392 ata_pci_ch_attach(device_t dev) 393 { 394 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 395 struct ata_channel *ch = device_get_softc(dev); 396 struct resource *io = NULL, *ctlio = NULL; 397 int i, rid; 398 399 rid = ATA_IOADDR_RID; 400 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 401 return ENXIO; 402 403 rid = ATA_CTLADDR_RID; 404 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 405 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 406 return ENXIO; 407 } 408 409 ata_pci_dmainit(dev); 410 411 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 412 ch->r_io[i].res = io; 413 ch->r_io[i].offset = i; 414 } 415 ch->r_io[ATA_CONTROL].res = ctlio; 416 ch->r_io[ATA_CONTROL].offset = ctlr->legacy ? 0 : 2; 417 ch->r_io[ATA_IDX_ADDR].res = io; 418 ata_default_registers(dev); 419 if (ctlr->r_res1) { 420 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 421 ch->r_io[i].res = ctlr->r_res1; 422 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE); 423 } 424 } 425 426 ata_pci_hw(dev); 427 return 0; 428 } 429 430 int 431 ata_pci_ch_detach(device_t dev) 432 { 433 struct ata_channel *ch = device_get_softc(dev); 434 435 ata_pci_dmafini(dev); 436 437 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, 438 ch->r_io[ATA_CONTROL].res); 439 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, 440 ch->r_io[ATA_IDX_ADDR].res); 441 442 return (0); 443 } 444 445 int 446 ata_pci_status(device_t dev) 447 { 448 struct ata_pci_controller *controller = 449 device_get_softc(device_get_parent(dev)); 450 struct ata_channel *ch = device_get_softc(dev); 451 452 if ((dumping || !controller->legacy) && 453 ((ch->flags & ATA_ALWAYS_DMASTAT) || 454 (ch->dma.flags & ATA_DMA_ACTIVE))) { 455 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 456 457 if ((bmstat & ATA_BMSTAT_INTERRUPT) == 0) 458 return 0; 459 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 460 DELAY(1); 461 } 462 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 463 DELAY(100); 464 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 465 return 0; 466 } 467 return 1; 468 } 469 470 void 471 ata_pci_hw(device_t dev) 472 { 473 struct ata_channel *ch = device_get_softc(dev); 474 475 ata_generic_hw(dev); 476 ch->hw.status = ata_pci_status; 477 } 478 479 static int 480 ata_pci_dmastart(struct ata_request *request) 481 { 482 struct ata_channel *ch = device_get_softc(request->parent); 483 484 ATA_DEBUG_RQ(request, "dmastart"); 485 486 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 487 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 488 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus); 489 ch->dma.flags |= ATA_DMA_ACTIVE; 490 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 491 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) | 492 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0)| 493 ATA_BMCMD_START_STOP); 494 return 0; 495 } 496 497 static int 498 ata_pci_dmastop(struct ata_request *request) 499 { 500 struct ata_channel *ch = device_get_softc(request->parent); 501 int error; 502 503 ATA_DEBUG_RQ(request, "dmastop"); 504 505 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 506 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 507 ch->dma.flags &= ~ATA_DMA_ACTIVE; 508 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 509 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 510 return error; 511 } 512 513 static void 514 ata_pci_dmareset(device_t dev) 515 { 516 struct ata_channel *ch = device_get_softc(dev); 517 struct ata_request *request; 518 519 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 520 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 521 ch->dma.flags &= ~ATA_DMA_ACTIVE; 522 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 523 if ((request = ch->running)) { 524 device_printf(dev, "DMA reset calling unload\n"); 525 ch->dma.unload(request); 526 } 527 } 528 529 void 530 ata_pci_dmainit(device_t dev) 531 { 532 struct ata_channel *ch = device_get_softc(dev); 533 534 ata_dmainit(dev); 535 ch->dma.start = ata_pci_dmastart; 536 ch->dma.stop = ata_pci_dmastop; 537 ch->dma.reset = ata_pci_dmareset; 538 } 539 540 void 541 ata_pci_dmafini(device_t dev) 542 { 543 544 ata_dmafini(dev); 545 } 546 547 int 548 ata_pci_child_location_str(device_t dev, device_t child, char *buf, 549 size_t buflen) 550 { 551 552 snprintf(buf, buflen, "channel=%d", 553 (int)(intptr_t)device_get_ivars(child)); 554 return (0); 555 } 556 557 static device_method_t ata_pci_methods[] = { 558 /* device interface */ 559 DEVMETHOD(device_probe, ata_pci_probe), 560 DEVMETHOD(device_attach, ata_pci_attach), 561 DEVMETHOD(device_detach, ata_pci_detach), 562 DEVMETHOD(device_suspend, ata_pci_suspend), 563 DEVMETHOD(device_resume, ata_pci_resume), 564 DEVMETHOD(device_shutdown, bus_generic_shutdown), 565 566 /* bus methods */ 567 DEVMETHOD(bus_read_ivar, ata_pci_read_ivar), 568 DEVMETHOD(bus_write_ivar, ata_pci_write_ivar), 569 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource), 570 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 571 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 572 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 573 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 574 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 575 DEVMETHOD(pci_read_config, ata_pci_read_config), 576 DEVMETHOD(pci_write_config, ata_pci_write_config), 577 DEVMETHOD(bus_child_location_str, ata_pci_child_location_str), 578 579 { 0, 0 } 580 }; 581 582 devclass_t ata_pci_devclass; 583 584 static driver_t ata_pci_driver = { 585 "atapci", 586 ata_pci_methods, 587 sizeof(struct ata_pci_controller), 588 }; 589 590 DRIVER_MODULE(atapci, pci, ata_pci_driver, ata_pci_devclass, 0, 0); 591 MODULE_VERSION(atapci, 1); 592 MODULE_DEPEND(atapci, ata, 1, 1, 1); 593 594 static int 595 ata_pcichannel_probe(device_t dev) 596 { 597 char buffer[32]; 598 599 if ((intptr_t)device_get_ivars(dev) < 0) 600 return (ENXIO); 601 sprintf(buffer, "ATA channel %d", (int)(intptr_t)device_get_ivars(dev)); 602 device_set_desc_copy(dev, buffer); 603 604 return ata_probe(dev); 605 } 606 607 static int 608 ata_pcichannel_attach(device_t dev) 609 { 610 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 611 struct ata_channel *ch = device_get_softc(dev); 612 int error; 613 614 if (ch->attached) 615 return (0); 616 ch->attached = 1; 617 618 ch->dev = dev; 619 ch->unit = (intptr_t)device_get_ivars(dev); 620 621 resource_int_value(device_get_name(dev), 622 device_get_unit(dev), "pm_level", &ch->pm_level); 623 624 if ((error = ctlr->ch_attach(dev))) 625 return error; 626 627 return ata_attach(dev); 628 } 629 630 static int 631 ata_pcichannel_detach(device_t dev) 632 { 633 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 634 struct ata_channel *ch = device_get_softc(dev); 635 int error; 636 637 if (!ch->attached) 638 return (0); 639 ch->attached = 0; 640 641 if ((error = ata_detach(dev))) 642 return error; 643 644 if (ctlr->ch_detach) 645 return (ctlr->ch_detach(dev)); 646 647 return (0); 648 } 649 static int 650 ata_pcichannel_suspend(device_t dev) 651 { 652 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 653 struct ata_channel *ch = device_get_softc(dev); 654 int error; 655 656 if (!ch->attached) 657 return (0); 658 659 if ((error = ata_suspend(dev))) 660 return (error); 661 662 if (ctlr->ch_suspend != NULL && (error = ctlr->ch_suspend(dev))) 663 return (error); 664 665 return (0); 666 } 667 668 static int 669 ata_pcichannel_resume(device_t dev) 670 { 671 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 672 struct ata_channel *ch = device_get_softc(dev); 673 int error; 674 675 if (!ch->attached) 676 return (0); 677 678 if (ctlr->ch_resume != NULL && (error = ctlr->ch_resume(dev))) 679 return (error); 680 681 return ata_resume(dev); 682 } 683 684 685 static int 686 ata_pcichannel_locking(device_t dev, int mode) 687 { 688 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 689 struct ata_channel *ch = device_get_softc(dev); 690 691 if (ctlr->locking) 692 return ctlr->locking(dev, mode); 693 else 694 return ch->unit; 695 } 696 697 static void 698 ata_pcichannel_reset(device_t dev) 699 { 700 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 701 struct ata_channel *ch = device_get_softc(dev); 702 703 /* if DMA engine present reset it */ 704 if (ch->dma.reset) 705 ch->dma.reset(dev); 706 707 /* reset the controller HW */ 708 if (ctlr->reset) 709 ctlr->reset(dev); 710 else 711 ata_generic_reset(dev); 712 } 713 714 static int 715 ata_pcichannel_setmode(device_t dev, int target, int mode) 716 { 717 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 718 719 if (ctlr->setmode) 720 return (ctlr->setmode(dev, target, mode)); 721 else 722 return (ata_generic_setmode(dev, target, mode)); 723 } 724 725 static int 726 ata_pcichannel_getrev(device_t dev, int target) 727 { 728 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 729 struct ata_channel *ch = device_get_softc(dev); 730 731 if (ch->flags & ATA_SATA) { 732 if (ctlr->getrev) 733 return (ctlr->getrev(dev, target)); 734 else 735 return (0xff); 736 } else 737 return (0); 738 } 739 740 static device_method_t ata_pcichannel_methods[] = { 741 /* device interface */ 742 DEVMETHOD(device_probe, ata_pcichannel_probe), 743 DEVMETHOD(device_attach, ata_pcichannel_attach), 744 DEVMETHOD(device_detach, ata_pcichannel_detach), 745 DEVMETHOD(device_shutdown, bus_generic_shutdown), 746 DEVMETHOD(device_suspend, ata_pcichannel_suspend), 747 DEVMETHOD(device_resume, ata_pcichannel_resume), 748 749 /* ATA methods */ 750 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 751 DEVMETHOD(ata_getrev, ata_pcichannel_getrev), 752 DEVMETHOD(ata_locking, ata_pcichannel_locking), 753 DEVMETHOD(ata_reset, ata_pcichannel_reset), 754 755 { 0, 0 } 756 }; 757 758 driver_t ata_pcichannel_driver = { 759 "ata", 760 ata_pcichannel_methods, 761 sizeof(struct ata_channel), 762 }; 763 764 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, 0, 0); 765 766 767 /* 768 * misc support fucntions 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 struct ata_chip_id * 847 ata_match_chip(device_t dev, 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 struct ata_chip_id * 863 ata_find_chip(device_t dev, struct ata_chip_id *index, int slot) 864 { 865 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 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 } 927 928