1 /*- 2 * Copyright (c) 1998 - 2008 Søren 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 <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/kernel.h> 33 #include <sys/module.h> 34 #include <sys/ata.h> 35 #include <sys/bus.h> 36 #include <sys/conf.h> 37 #include <sys/malloc.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 return ENXIO; 114 115 /* attach all channels on this controller */ 116 for (unit = 0; unit < ctlr->channels; unit++) { 117 if ((ctlr->ichannels & (1 << unit)) == 0) 118 continue; 119 child = device_add_child(dev, "ata", 120 ((unit == 0 || unit == 1) && ctlr->legacy) ? 121 unit : devclass_find_free_unit(ata_devclass, 2)); 122 if (child == NULL) 123 device_printf(dev, "failed to add ata child device\n"); 124 else 125 device_set_ivars(child, (void *)(intptr_t)unit); 126 } 127 bus_generic_attach(dev); 128 return 0; 129 } 130 131 int 132 ata_pci_detach(device_t dev) 133 { 134 struct ata_pci_controller *ctlr = device_get_softc(dev); 135 136 /* detach & delete all children */ 137 device_delete_children(dev); 138 139 if (ctlr->r_irq) { 140 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle); 141 bus_release_resource(dev, SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq); 142 if (ctlr->r_irq_rid != ATA_IRQ_RID) 143 pci_release_msi(dev); 144 } 145 if (ctlr->chipdeinit != NULL) 146 ctlr->chipdeinit(dev); 147 if (ctlr->r_res2) { 148 #ifdef __sparc64__ 149 bus_space_unmap(rman_get_bustag(ctlr->r_res2), 150 rman_get_bushandle(ctlr->r_res2), rman_get_size(ctlr->r_res2)); 151 #endif 152 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2); 153 } 154 if (ctlr->r_res1) { 155 #ifdef __sparc64__ 156 bus_space_unmap(rman_get_bustag(ctlr->r_res1), 157 rman_get_bushandle(ctlr->r_res1), rman_get_size(ctlr->r_res1)); 158 #endif 159 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1); 160 } 161 162 return 0; 163 } 164 165 int 166 ata_pci_suspend(device_t dev) 167 { 168 struct ata_pci_controller *ctlr = device_get_softc(dev); 169 int error = 0; 170 171 bus_generic_suspend(dev); 172 if (ctlr->suspend) 173 error = ctlr->suspend(dev); 174 return error; 175 } 176 177 int 178 ata_pci_resume(device_t dev) 179 { 180 struct ata_pci_controller *ctlr = device_get_softc(dev); 181 int error = 0; 182 183 if (ctlr->resume) 184 error = ctlr->resume(dev); 185 bus_generic_resume(dev); 186 return error; 187 } 188 189 int 190 ata_pci_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 191 { 192 193 return (BUS_READ_IVAR(device_get_parent(dev), dev, which, result)); 194 } 195 196 int 197 ata_pci_write_ivar(device_t dev, device_t child, int which, uintptr_t value) 198 { 199 200 return (BUS_WRITE_IVAR(device_get_parent(dev), dev, which, value)); 201 } 202 203 uint32_t 204 ata_pci_read_config(device_t dev, device_t child, int reg, int width) 205 { 206 207 return (pci_read_config(dev, reg, width)); 208 } 209 210 void 211 ata_pci_write_config(device_t dev, device_t child, int reg, 212 uint32_t val, int width) 213 { 214 215 pci_write_config(dev, reg, val, width); 216 } 217 218 struct resource * 219 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, 220 u_long start, u_long end, u_long count, u_int flags) 221 { 222 struct ata_pci_controller *controller = device_get_softc(dev); 223 struct resource *res = NULL; 224 225 if (device_get_devclass(child) == ata_devclass) { 226 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 227 int myrid; 228 229 if (type == SYS_RES_IOPORT) { 230 switch (*rid) { 231 case ATA_IOADDR_RID: 232 if (controller->legacy) { 233 start = (unit ? ATA_SECONDARY : ATA_PRIMARY); 234 count = ATA_IOSIZE; 235 end = start + count - 1; 236 } 237 myrid = PCIR_BAR(0) + (unit << 3); 238 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 239 SYS_RES_IOPORT, &myrid, 240 start, end, count, flags); 241 break; 242 case ATA_CTLADDR_RID: 243 if (controller->legacy) { 244 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) + 245 ATA_CTLOFFSET; 246 count = ATA_CTLIOSIZE; 247 end = start + count - 1; 248 } 249 myrid = PCIR_BAR(1) + (unit << 3); 250 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 251 SYS_RES_IOPORT, &myrid, 252 start, end, count, flags); 253 break; 254 } 255 } 256 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) { 257 if (controller->legacy) { 258 int irq = (unit == 0 ? 14 : 15); 259 260 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 261 SYS_RES_IRQ, rid, irq, irq, 1, flags); 262 } else 263 res = controller->r_irq; 264 } 265 } else { 266 if (type == SYS_RES_IRQ) { 267 if (*rid != ATA_IRQ_RID) 268 return (NULL); 269 res = controller->r_irq; 270 } else { 271 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 272 type, rid, start, end, count, flags); 273 } 274 } 275 return (res); 276 } 277 278 int 279 ata_pci_release_resource(device_t dev, device_t child, int type, int rid, 280 struct resource *r) 281 { 282 283 if (device_get_devclass(child) == ata_devclass) { 284 struct ata_pci_controller *controller = device_get_softc(dev); 285 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 286 287 if (type == SYS_RES_IOPORT) { 288 switch (rid) { 289 case ATA_IOADDR_RID: 290 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 291 SYS_RES_IOPORT, 292 PCIR_BAR(0) + (unit << 3), r); 293 case ATA_CTLADDR_RID: 294 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 295 SYS_RES_IOPORT, 296 PCIR_BAR(1) + (unit << 3), r); 297 default: 298 return ENOENT; 299 } 300 } 301 if (type == SYS_RES_IRQ) { 302 if (rid != ATA_IRQ_RID) 303 return ENOENT; 304 if (controller->legacy) { 305 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 306 SYS_RES_IRQ, rid, r); 307 } else 308 return 0; 309 } 310 } else { 311 if (type == SYS_RES_IRQ) { 312 if (rid != ATA_IRQ_RID) 313 return (ENOENT); 314 return (0); 315 } else { 316 return (BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 317 type, rid, r)); 318 } 319 } 320 return (EINVAL); 321 } 322 323 int 324 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 325 int flags, driver_filter_t *filter, driver_intr_t *function, 326 void *argument, void **cookiep) 327 { 328 struct ata_pci_controller *controller = device_get_softc(dev); 329 330 if (controller->legacy) { 331 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 332 flags, filter, function, argument, cookiep); 333 } else { 334 struct ata_pci_controller *controller = device_get_softc(dev); 335 int unit; 336 337 if (filter != NULL) { 338 printf("ata-pci.c: we cannot use a filter here\n"); 339 return (EINVAL); 340 } 341 if (device_get_devclass(child) == ata_devclass) 342 unit = ((struct ata_channel *)device_get_softc(child))->unit; 343 else 344 unit = ATA_PCI_MAX_CH - 1; 345 controller->interrupt[unit].function = function; 346 controller->interrupt[unit].argument = argument; 347 *cookiep = controller; 348 return 0; 349 } 350 } 351 352 int 353 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 354 void *cookie) 355 { 356 struct ata_pci_controller *controller = device_get_softc(dev); 357 358 if (controller->legacy) { 359 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 360 } else { 361 struct ata_pci_controller *controller = device_get_softc(dev); 362 int unit; 363 364 if (device_get_devclass(child) == ata_devclass) 365 unit = ((struct ata_channel *)device_get_softc(child))->unit; 366 else 367 unit = ATA_PCI_MAX_CH - 1; 368 controller->interrupt[unit].function = NULL; 369 controller->interrupt[unit].argument = NULL; 370 return 0; 371 } 372 } 373 374 int 375 ata_generic_setmode(device_t dev, int target, int mode) 376 { 377 378 return (min(mode, ATA_UDMA2)); 379 } 380 381 int 382 ata_generic_chipinit(device_t dev) 383 { 384 struct ata_pci_controller *ctlr = device_get_softc(dev); 385 386 if (ata_setup_interrupt(dev, ata_generic_intr)) 387 return ENXIO; 388 ctlr->setmode = ata_generic_setmode; 389 return 0; 390 } 391 392 int 393 ata_pci_ch_attach(device_t dev) 394 { 395 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 396 struct ata_channel *ch = device_get_softc(dev); 397 struct resource *io = NULL, *ctlio = NULL; 398 int i, rid; 399 400 rid = ATA_IOADDR_RID; 401 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 402 return ENXIO; 403 404 rid = ATA_CTLADDR_RID; 405 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 406 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 407 return ENXIO; 408 } 409 410 ata_pci_dmainit(dev); 411 412 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 413 ch->r_io[i].res = io; 414 ch->r_io[i].offset = i; 415 } 416 ch->r_io[ATA_CONTROL].res = ctlio; 417 ch->r_io[ATA_CONTROL].offset = ctlr->legacy ? 0 : 2; 418 ch->r_io[ATA_IDX_ADDR].res = io; 419 ata_default_registers(dev); 420 if (ctlr->r_res1) { 421 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 422 ch->r_io[i].res = ctlr->r_res1; 423 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE); 424 } 425 } 426 427 ata_pci_hw(dev); 428 return 0; 429 } 430 431 int 432 ata_pci_ch_detach(device_t dev) 433 { 434 struct ata_channel *ch = device_get_softc(dev); 435 436 ata_pci_dmafini(dev); 437 438 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, 439 ch->r_io[ATA_CONTROL].res); 440 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, 441 ch->r_io[ATA_IDX_ADDR].res); 442 443 return (0); 444 } 445 446 int 447 ata_pci_status(device_t dev) 448 { 449 struct ata_pci_controller *controller = 450 device_get_softc(device_get_parent(dev)); 451 struct ata_channel *ch = device_get_softc(dev); 452 453 if ((dumping || !controller->legacy) && 454 ((ch->flags & ATA_ALWAYS_DMASTAT) || 455 (ch->dma.flags & ATA_DMA_ACTIVE))) { 456 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 457 458 if ((bmstat & ATA_BMSTAT_INTERRUPT) == 0) 459 return 0; 460 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 461 DELAY(1); 462 } 463 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 464 DELAY(100); 465 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 466 return 0; 467 } 468 return 1; 469 } 470 471 void 472 ata_pci_hw(device_t dev) 473 { 474 struct ata_channel *ch = device_get_softc(dev); 475 476 ata_generic_hw(dev); 477 ch->hw.status = ata_pci_status; 478 } 479 480 static int 481 ata_pci_dmastart(struct ata_request *request) 482 { 483 struct ata_channel *ch = device_get_softc(request->parent); 484 485 ATA_DEBUG_RQ(request, "dmastart"); 486 487 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 488 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 489 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus); 490 ch->dma.flags |= ATA_DMA_ACTIVE; 491 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 492 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) | 493 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0)| 494 ATA_BMCMD_START_STOP); 495 return 0; 496 } 497 498 static int 499 ata_pci_dmastop(struct ata_request *request) 500 { 501 struct ata_channel *ch = device_get_softc(request->parent); 502 int error; 503 504 ATA_DEBUG_RQ(request, "dmastop"); 505 506 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 507 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 508 ch->dma.flags &= ~ATA_DMA_ACTIVE; 509 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 510 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 511 return error; 512 } 513 514 static void 515 ata_pci_dmareset(device_t dev) 516 { 517 struct ata_channel *ch = device_get_softc(dev); 518 struct ata_request *request; 519 520 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 521 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 522 ch->dma.flags &= ~ATA_DMA_ACTIVE; 523 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 524 if ((request = ch->running)) { 525 device_printf(dev, "DMA reset calling unload\n"); 526 ch->dma.unload(request); 527 } 528 } 529 530 void 531 ata_pci_dmainit(device_t dev) 532 { 533 struct ata_channel *ch = device_get_softc(dev); 534 535 ata_dmainit(dev); 536 ch->dma.start = ata_pci_dmastart; 537 ch->dma.stop = ata_pci_dmastop; 538 ch->dma.reset = ata_pci_dmareset; 539 } 540 541 void 542 ata_pci_dmafini(device_t dev) 543 { 544 545 ata_dmafini(dev); 546 } 547 548 int 549 ata_pci_print_child(device_t dev, device_t child) 550 { 551 int retval; 552 553 retval = bus_print_child_header(dev, child); 554 retval += printf(" at channel %d", 555 (int)(intptr_t)device_get_ivars(child)); 556 retval += bus_print_child_footer(dev, child); 557 558 return (retval); 559 } 560 561 int 562 ata_pci_child_location_str(device_t dev, device_t child, char *buf, 563 size_t buflen) 564 { 565 566 snprintf(buf, buflen, "channel=%d", 567 (int)(intptr_t)device_get_ivars(child)); 568 return (0); 569 } 570 571 static bus_dma_tag_t 572 ata_pci_get_dma_tag(device_t bus, device_t child) 573 { 574 575 return (bus_get_dma_tag(bus)); 576 } 577 578 static device_method_t ata_pci_methods[] = { 579 /* device interface */ 580 DEVMETHOD(device_probe, ata_pci_probe), 581 DEVMETHOD(device_attach, ata_pci_attach), 582 DEVMETHOD(device_detach, ata_pci_detach), 583 DEVMETHOD(device_suspend, ata_pci_suspend), 584 DEVMETHOD(device_resume, ata_pci_resume), 585 DEVMETHOD(device_shutdown, bus_generic_shutdown), 586 587 /* bus methods */ 588 DEVMETHOD(bus_read_ivar, ata_pci_read_ivar), 589 DEVMETHOD(bus_write_ivar, ata_pci_write_ivar), 590 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource), 591 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 592 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 593 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 594 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 595 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 596 DEVMETHOD(pci_read_config, ata_pci_read_config), 597 DEVMETHOD(pci_write_config, ata_pci_write_config), 598 DEVMETHOD(bus_print_child, ata_pci_print_child), 599 DEVMETHOD(bus_child_location_str, ata_pci_child_location_str), 600 DEVMETHOD(bus_get_dma_tag, ata_pci_get_dma_tag), 601 602 DEVMETHOD_END 603 }; 604 605 devclass_t ata_pci_devclass; 606 607 static driver_t ata_pci_driver = { 608 "atapci", 609 ata_pci_methods, 610 sizeof(struct ata_pci_controller), 611 }; 612 613 DRIVER_MODULE(atapci, pci, ata_pci_driver, ata_pci_devclass, NULL, NULL); 614 MODULE_VERSION(atapci, 1); 615 MODULE_DEPEND(atapci, ata, 1, 1, 1); 616 617 static int 618 ata_pcichannel_probe(device_t dev) 619 { 620 621 if ((intptr_t)device_get_ivars(dev) < 0) 622 return (ENXIO); 623 device_set_desc(dev, "ATA channel"); 624 625 return ata_probe(dev); 626 } 627 628 static int 629 ata_pcichannel_attach(device_t dev) 630 { 631 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 632 struct ata_channel *ch = device_get_softc(dev); 633 int error; 634 635 if (ch->attached) 636 return (0); 637 ch->attached = 1; 638 639 ch->dev = dev; 640 ch->unit = (intptr_t)device_get_ivars(dev); 641 642 resource_int_value(device_get_name(dev), 643 device_get_unit(dev), "pm_level", &ch->pm_level); 644 645 if ((error = ctlr->ch_attach(dev))) 646 return error; 647 648 return ata_attach(dev); 649 } 650 651 static int 652 ata_pcichannel_detach(device_t dev) 653 { 654 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 655 struct ata_channel *ch = device_get_softc(dev); 656 int error; 657 658 if (!ch->attached) 659 return (0); 660 ch->attached = 0; 661 662 if ((error = ata_detach(dev))) 663 return error; 664 665 if (ctlr->ch_detach) 666 return (ctlr->ch_detach(dev)); 667 668 return (0); 669 } 670 static int 671 ata_pcichannel_suspend(device_t dev) 672 { 673 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 674 struct ata_channel *ch = device_get_softc(dev); 675 int error; 676 677 if (!ch->attached) 678 return (0); 679 680 if ((error = ata_suspend(dev))) 681 return (error); 682 683 if (ctlr->ch_suspend != NULL && (error = ctlr->ch_suspend(dev))) 684 return (error); 685 686 return (0); 687 } 688 689 static int 690 ata_pcichannel_resume(device_t dev) 691 { 692 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 693 struct ata_channel *ch = device_get_softc(dev); 694 int error; 695 696 if (!ch->attached) 697 return (0); 698 699 if (ctlr->ch_resume != NULL && (error = ctlr->ch_resume(dev))) 700 return (error); 701 702 return ata_resume(dev); 703 } 704 705 static void 706 ata_pcichannel_reset(device_t dev) 707 { 708 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 709 struct ata_channel *ch = device_get_softc(dev); 710 711 /* if DMA engine present reset it */ 712 if (ch->dma.reset) 713 ch->dma.reset(dev); 714 715 /* reset the controller HW */ 716 if (ctlr->reset) 717 ctlr->reset(dev); 718 else 719 ata_generic_reset(dev); 720 } 721 722 static int 723 ata_pcichannel_setmode(device_t dev, int target, int mode) 724 { 725 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 726 727 if (ctlr->setmode) 728 return (ctlr->setmode(dev, target, mode)); 729 else 730 return (ata_generic_setmode(dev, target, mode)); 731 } 732 733 static int 734 ata_pcichannel_getrev(device_t dev, int target) 735 { 736 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 737 struct ata_channel *ch = device_get_softc(dev); 738 739 if (ch->flags & ATA_SATA) { 740 if (ctlr->getrev) 741 return (ctlr->getrev(dev, target)); 742 else 743 return (0xff); 744 } else 745 return (0); 746 } 747 748 static device_method_t ata_pcichannel_methods[] = { 749 /* device interface */ 750 DEVMETHOD(device_probe, ata_pcichannel_probe), 751 DEVMETHOD(device_attach, ata_pcichannel_attach), 752 DEVMETHOD(device_detach, ata_pcichannel_detach), 753 DEVMETHOD(device_shutdown, bus_generic_shutdown), 754 DEVMETHOD(device_suspend, ata_pcichannel_suspend), 755 DEVMETHOD(device_resume, ata_pcichannel_resume), 756 757 /* ATA methods */ 758 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 759 DEVMETHOD(ata_getrev, ata_pcichannel_getrev), 760 DEVMETHOD(ata_reset, ata_pcichannel_reset), 761 762 DEVMETHOD_END 763 }; 764 765 driver_t ata_pcichannel_driver = { 766 "ata", 767 ata_pcichannel_methods, 768 sizeof(struct ata_channel), 769 }; 770 771 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, NULL, NULL); 772 773 /* 774 * misc support fucntions 775 */ 776 int 777 ata_legacy(device_t dev) 778 { 779 return (((pci_read_config(dev, PCIR_SUBCLASS, 1) == PCIS_STORAGE_IDE) && 780 (pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV)&& 781 ((pci_read_config(dev, PCIR_PROGIF, 1) & 782 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) != 783 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))) || 784 (!pci_read_config(dev, PCIR_BAR(0), 4) && 785 !pci_read_config(dev, PCIR_BAR(1), 4) && 786 !pci_read_config(dev, PCIR_BAR(2), 4) && 787 !pci_read_config(dev, PCIR_BAR(3), 4) && 788 !pci_read_config(dev, PCIR_BAR(5), 4))); 789 } 790 791 void 792 ata_generic_intr(void *data) 793 { 794 struct ata_pci_controller *ctlr = data; 795 struct ata_channel *ch; 796 int unit; 797 798 for (unit = 0; unit < ATA_PCI_MAX_CH; unit++) { 799 if ((ch = ctlr->interrupt[unit].argument)) 800 ctlr->interrupt[unit].function(ch); 801 } 802 } 803 804 int 805 ata_setup_interrupt(device_t dev, void *intr_func) 806 { 807 struct ata_pci_controller *ctlr = device_get_softc(dev); 808 int i, msi = 0; 809 810 if (!ctlr->legacy) { 811 if (resource_int_value(device_get_name(dev), 812 device_get_unit(dev), "msi", &i) == 0 && i != 0) 813 msi = 1; 814 if (msi && pci_msi_count(dev) > 0 && pci_alloc_msi(dev, &msi) == 0) { 815 ctlr->r_irq_rid = 0x1; 816 } else { 817 msi = 0; 818 ctlr->r_irq_rid = ATA_IRQ_RID; 819 } 820 if (!(ctlr->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 821 &ctlr->r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 822 device_printf(dev, "unable to map interrupt\n"); 823 if (msi) 824 pci_release_msi(dev); 825 return ENXIO; 826 } 827 if ((bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL, 828 intr_func, ctlr, &ctlr->handle))) { 829 device_printf(dev, "unable to setup interrupt\n"); 830 bus_release_resource(dev, 831 SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq); 832 if (msi) 833 pci_release_msi(dev); 834 return ENXIO; 835 } 836 } 837 return 0; 838 } 839 840 void 841 ata_set_desc(device_t dev) 842 { 843 struct ata_pci_controller *ctlr = device_get_softc(dev); 844 char buffer[128]; 845 846 sprintf(buffer, "%s %s %s controller", 847 ata_pcivendor2str(dev), ctlr->chip->text, 848 ata_mode2str(ctlr->chip->max_dma)); 849 device_set_desc_copy(dev, buffer); 850 } 851 852 const struct ata_chip_id * 853 ata_match_chip(device_t dev, const struct ata_chip_id *index) 854 { 855 uint32_t devid; 856 uint8_t revid; 857 858 devid = pci_get_devid(dev); 859 revid = pci_get_revid(dev); 860 while (index->chipid != 0) { 861 if (devid == index->chipid && revid >= index->chiprev) 862 return (index); 863 index++; 864 } 865 return (NULL); 866 } 867 868 const struct ata_chip_id * 869 ata_find_chip(device_t dev, const struct ata_chip_id *index, int slot) 870 { 871 const struct ata_chip_id *idx; 872 device_t *children; 873 int nchildren, i; 874 uint8_t s; 875 876 if (device_get_children(device_get_parent(dev), &children, &nchildren)) 877 return (NULL); 878 879 for (i = 0; i < nchildren; i++) { 880 s = pci_get_slot(children[i]); 881 if ((slot >= 0 && s == slot) || (slot < 0 && s <= -slot)) { 882 idx = ata_match_chip(children[i], index); 883 if (idx != NULL) { 884 free(children, M_TEMP); 885 return (idx); 886 } 887 } 888 } 889 free(children, M_TEMP); 890 return (NULL); 891 } 892 893 const char * 894 ata_pcivendor2str(device_t dev) 895 { 896 switch (pci_get_vendor(dev)) { 897 case ATA_ACARD_ID: return "Acard"; 898 case ATA_ACER_LABS_ID: return "AcerLabs"; 899 case ATA_AMD_ID: return "AMD"; 900 case ATA_ADAPTEC_ID: return "Adaptec"; 901 case ATA_ATI_ID: return "ATI"; 902 case ATA_CYRIX_ID: return "Cyrix"; 903 case ATA_CYPRESS_ID: return "Cypress"; 904 case ATA_HIGHPOINT_ID: return "HighPoint"; 905 case ATA_INTEL_ID: return "Intel"; 906 case ATA_ITE_ID: return "ITE"; 907 case ATA_JMICRON_ID: return "JMicron"; 908 case ATA_MARVELL_ID: return "Marvell"; 909 case ATA_MARVELL2_ID: return "Marvell"; 910 case ATA_NATIONAL_ID: return "National"; 911 case ATA_NETCELL_ID: return "Netcell"; 912 case ATA_NVIDIA_ID: return "nVidia"; 913 case ATA_PROMISE_ID: return "Promise"; 914 case ATA_SERVERWORKS_ID: return "ServerWorks"; 915 case ATA_SILICON_IMAGE_ID: return "SiI"; 916 case ATA_SIS_ID: return "SiS"; 917 case ATA_VIA_ID: return "VIA"; 918 case ATA_CENATEK_ID: return "Cenatek"; 919 case ATA_MICRON_ID: return "Micron"; 920 default: return "Generic"; 921 } 922 } 923 924 int 925 ata_mode2idx(int mode) 926 { 927 if ((mode & ATA_DMA_MASK) == ATA_UDMA0) 928 return (mode & ATA_MODE_MASK) + 8; 929 if ((mode & ATA_DMA_MASK) == ATA_WDMA0) 930 return (mode & ATA_MODE_MASK) + 5; 931 return (mode & ATA_MODE_MASK) - ATA_PIO0; 932 } 933