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 rman_res_t start, rman_res_t end, rman_res_t count, 221 u_int flags) 222 { 223 struct ata_pci_controller *controller = device_get_softc(dev); 224 struct resource *res = NULL; 225 226 if (device_get_devclass(child) == ata_devclass) { 227 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 228 int myrid; 229 230 if (type == SYS_RES_IOPORT) { 231 switch (*rid) { 232 case ATA_IOADDR_RID: 233 if (controller->legacy) { 234 start = (unit ? ATA_SECONDARY : ATA_PRIMARY); 235 count = ATA_IOSIZE; 236 end = start + count - 1; 237 } 238 myrid = PCIR_BAR(0) + (unit << 3); 239 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 240 SYS_RES_IOPORT, &myrid, 241 start, end, count, flags); 242 break; 243 case ATA_CTLADDR_RID: 244 if (controller->legacy) { 245 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) + 246 ATA_CTLOFFSET; 247 count = ATA_CTLIOSIZE; 248 end = start + count - 1; 249 } 250 myrid = PCIR_BAR(1) + (unit << 3); 251 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 252 SYS_RES_IOPORT, &myrid, 253 start, end, count, flags); 254 break; 255 } 256 } 257 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) { 258 if (controller->legacy) { 259 int irq = (unit == 0 ? 14 : 15); 260 261 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 262 SYS_RES_IRQ, rid, irq, irq, 1, flags); 263 } else 264 res = controller->r_irq; 265 } 266 } else { 267 if (type == SYS_RES_IRQ) { 268 if (*rid != ATA_IRQ_RID) 269 return (NULL); 270 res = controller->r_irq; 271 } else { 272 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 273 type, rid, start, end, count, flags); 274 } 275 } 276 return (res); 277 } 278 279 int 280 ata_pci_release_resource(device_t dev, device_t child, int type, int rid, 281 struct resource *r) 282 { 283 284 if (device_get_devclass(child) == ata_devclass) { 285 struct ata_pci_controller *controller = device_get_softc(dev); 286 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 287 288 if (type == SYS_RES_IOPORT) { 289 switch (rid) { 290 case ATA_IOADDR_RID: 291 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 292 SYS_RES_IOPORT, 293 PCIR_BAR(0) + (unit << 3), r); 294 case ATA_CTLADDR_RID: 295 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 296 SYS_RES_IOPORT, 297 PCIR_BAR(1) + (unit << 3), r); 298 default: 299 return ENOENT; 300 } 301 } 302 if (type == SYS_RES_IRQ) { 303 if (rid != ATA_IRQ_RID) 304 return ENOENT; 305 if (controller->legacy) { 306 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 307 SYS_RES_IRQ, rid, r); 308 } else 309 return 0; 310 } 311 } else { 312 if (type == SYS_RES_IRQ) { 313 if (rid != ATA_IRQ_RID) 314 return (ENOENT); 315 return (0); 316 } else { 317 return (BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 318 type, rid, r)); 319 } 320 } 321 return (EINVAL); 322 } 323 324 int 325 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 326 int flags, driver_filter_t *filter, driver_intr_t *function, 327 void *argument, void **cookiep) 328 { 329 struct ata_pci_controller *controller = device_get_softc(dev); 330 331 if (controller->legacy) { 332 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 333 flags, filter, function, argument, cookiep); 334 } else { 335 struct ata_pci_controller *controller = device_get_softc(dev); 336 int unit; 337 338 if (filter != NULL) { 339 printf("ata-pci.c: we cannot use a filter here\n"); 340 return (EINVAL); 341 } 342 if (device_get_devclass(child) == ata_devclass) 343 unit = ((struct ata_channel *)device_get_softc(child))->unit; 344 else 345 unit = ATA_PCI_MAX_CH - 1; 346 controller->interrupt[unit].function = function; 347 controller->interrupt[unit].argument = argument; 348 *cookiep = controller; 349 return 0; 350 } 351 } 352 353 int 354 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 355 void *cookie) 356 { 357 struct ata_pci_controller *controller = device_get_softc(dev); 358 359 if (controller->legacy) { 360 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 361 } else { 362 struct ata_pci_controller *controller = device_get_softc(dev); 363 int unit; 364 365 if (device_get_devclass(child) == ata_devclass) 366 unit = ((struct ata_channel *)device_get_softc(child))->unit; 367 else 368 unit = ATA_PCI_MAX_CH - 1; 369 controller->interrupt[unit].function = NULL; 370 controller->interrupt[unit].argument = NULL; 371 return 0; 372 } 373 } 374 375 int 376 ata_generic_setmode(device_t dev, int target, int mode) 377 { 378 379 return (min(mode, ATA_UDMA2)); 380 } 381 382 int 383 ata_generic_chipinit(device_t dev) 384 { 385 struct ata_pci_controller *ctlr = device_get_softc(dev); 386 387 if (ata_setup_interrupt(dev, ata_generic_intr)) 388 return ENXIO; 389 ctlr->setmode = ata_generic_setmode; 390 return 0; 391 } 392 393 int 394 ata_pci_ch_attach(device_t dev) 395 { 396 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 397 struct ata_channel *ch = device_get_softc(dev); 398 struct resource *io = NULL, *ctlio = NULL; 399 int i, rid; 400 401 rid = ATA_IOADDR_RID; 402 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 403 return ENXIO; 404 405 rid = ATA_CTLADDR_RID; 406 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 407 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 408 return ENXIO; 409 } 410 411 ata_pci_dmainit(dev); 412 413 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 414 ch->r_io[i].res = io; 415 ch->r_io[i].offset = i; 416 } 417 ch->r_io[ATA_CONTROL].res = ctlio; 418 ch->r_io[ATA_CONTROL].offset = ctlr->legacy ? 0 : 2; 419 ch->r_io[ATA_IDX_ADDR].res = io; 420 ata_default_registers(dev); 421 if (ctlr->r_res1) { 422 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 423 ch->r_io[i].res = ctlr->r_res1; 424 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE); 425 } 426 } 427 428 ata_pci_hw(dev); 429 return 0; 430 } 431 432 int 433 ata_pci_ch_detach(device_t dev) 434 { 435 struct ata_channel *ch = device_get_softc(dev); 436 437 ata_pci_dmafini(dev); 438 439 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, 440 ch->r_io[ATA_CONTROL].res); 441 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, 442 ch->r_io[ATA_IDX_ADDR].res); 443 444 return (0); 445 } 446 447 int 448 ata_pci_status(device_t dev) 449 { 450 struct ata_pci_controller *controller = 451 device_get_softc(device_get_parent(dev)); 452 struct ata_channel *ch = device_get_softc(dev); 453 454 if ((dumping || !controller->legacy) && 455 ((ch->flags & ATA_ALWAYS_DMASTAT) || 456 (ch->dma.flags & ATA_DMA_ACTIVE))) { 457 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 458 459 if ((bmstat & ATA_BMSTAT_INTERRUPT) == 0) 460 return 0; 461 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 462 DELAY(1); 463 } 464 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 465 DELAY(100); 466 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 467 return 0; 468 } 469 return 1; 470 } 471 472 void 473 ata_pci_hw(device_t dev) 474 { 475 struct ata_channel *ch = device_get_softc(dev); 476 477 ata_generic_hw(dev); 478 ch->hw.status = ata_pci_status; 479 } 480 481 static int 482 ata_pci_dmastart(struct ata_request *request) 483 { 484 struct ata_channel *ch = device_get_softc(request->parent); 485 486 ATA_DEBUG_RQ(request, "dmastart"); 487 488 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 489 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 490 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus); 491 ch->dma.flags |= ATA_DMA_ACTIVE; 492 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 493 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) | 494 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0)| 495 ATA_BMCMD_START_STOP); 496 return 0; 497 } 498 499 static int 500 ata_pci_dmastop(struct ata_request *request) 501 { 502 struct ata_channel *ch = device_get_softc(request->parent); 503 int error; 504 505 ATA_DEBUG_RQ(request, "dmastop"); 506 507 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 508 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 509 ch->dma.flags &= ~ATA_DMA_ACTIVE; 510 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 511 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 512 return error; 513 } 514 515 static void 516 ata_pci_dmareset(device_t dev) 517 { 518 struct ata_channel *ch = device_get_softc(dev); 519 struct ata_request *request; 520 521 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 522 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 523 ch->dma.flags &= ~ATA_DMA_ACTIVE; 524 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 525 if ((request = ch->running)) { 526 device_printf(dev, "DMA reset calling unload\n"); 527 ch->dma.unload(request); 528 } 529 } 530 531 void 532 ata_pci_dmainit(device_t dev) 533 { 534 struct ata_channel *ch = device_get_softc(dev); 535 536 ata_dmainit(dev); 537 ch->dma.start = ata_pci_dmastart; 538 ch->dma.stop = ata_pci_dmastop; 539 ch->dma.reset = ata_pci_dmareset; 540 } 541 542 void 543 ata_pci_dmafini(device_t dev) 544 { 545 546 ata_dmafini(dev); 547 } 548 549 int 550 ata_pci_print_child(device_t dev, device_t child) 551 { 552 int retval; 553 554 retval = bus_print_child_header(dev, child); 555 retval += printf(" at channel %d", 556 (int)(intptr_t)device_get_ivars(child)); 557 retval += bus_print_child_footer(dev, child); 558 559 return (retval); 560 } 561 562 int 563 ata_pci_child_location_str(device_t dev, device_t child, char *buf, 564 size_t buflen) 565 { 566 567 snprintf(buf, buflen, "channel=%d", 568 (int)(intptr_t)device_get_ivars(child)); 569 return (0); 570 } 571 572 static bus_dma_tag_t 573 ata_pci_get_dma_tag(device_t bus, device_t child) 574 { 575 576 return (bus_get_dma_tag(bus)); 577 } 578 579 static device_method_t ata_pci_methods[] = { 580 /* device interface */ 581 DEVMETHOD(device_probe, ata_pci_probe), 582 DEVMETHOD(device_attach, ata_pci_attach), 583 DEVMETHOD(device_detach, ata_pci_detach), 584 DEVMETHOD(device_suspend, ata_pci_suspend), 585 DEVMETHOD(device_resume, ata_pci_resume), 586 DEVMETHOD(device_shutdown, bus_generic_shutdown), 587 588 /* bus methods */ 589 DEVMETHOD(bus_read_ivar, ata_pci_read_ivar), 590 DEVMETHOD(bus_write_ivar, ata_pci_write_ivar), 591 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource), 592 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 593 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 594 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 595 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 596 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 597 DEVMETHOD(pci_read_config, ata_pci_read_config), 598 DEVMETHOD(pci_write_config, ata_pci_write_config), 599 DEVMETHOD(bus_print_child, ata_pci_print_child), 600 DEVMETHOD(bus_child_location_str, ata_pci_child_location_str), 601 DEVMETHOD(bus_get_dma_tag, ata_pci_get_dma_tag), 602 603 DEVMETHOD_END 604 }; 605 606 devclass_t ata_pci_devclass; 607 608 static driver_t ata_pci_driver = { 609 "atapci", 610 ata_pci_methods, 611 sizeof(struct ata_pci_controller), 612 }; 613 614 DRIVER_MODULE(atapci, pci, ata_pci_driver, ata_pci_devclass, NULL, NULL); 615 MODULE_VERSION(atapci, 1); 616 MODULE_DEPEND(atapci, ata, 1, 1, 1); 617 618 static int 619 ata_pcichannel_probe(device_t dev) 620 { 621 622 if ((intptr_t)device_get_ivars(dev) < 0) 623 return (ENXIO); 624 device_set_desc(dev, "ATA channel"); 625 626 return ata_probe(dev); 627 } 628 629 static int 630 ata_pcichannel_attach(device_t dev) 631 { 632 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 633 struct ata_channel *ch = device_get_softc(dev); 634 int error; 635 636 if (ch->attached) 637 return (0); 638 ch->attached = 1; 639 640 ch->dev = dev; 641 ch->unit = (intptr_t)device_get_ivars(dev); 642 643 resource_int_value(device_get_name(dev), 644 device_get_unit(dev), "pm_level", &ch->pm_level); 645 646 if ((error = ctlr->ch_attach(dev))) 647 return error; 648 649 return ata_attach(dev); 650 } 651 652 static int 653 ata_pcichannel_detach(device_t dev) 654 { 655 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 656 struct ata_channel *ch = device_get_softc(dev); 657 int error; 658 659 if (!ch->attached) 660 return (0); 661 ch->attached = 0; 662 663 if ((error = ata_detach(dev))) 664 return error; 665 666 if (ctlr->ch_detach) 667 return (ctlr->ch_detach(dev)); 668 669 return (0); 670 } 671 static int 672 ata_pcichannel_suspend(device_t dev) 673 { 674 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 675 struct ata_channel *ch = device_get_softc(dev); 676 int error; 677 678 if (!ch->attached) 679 return (0); 680 681 if ((error = ata_suspend(dev))) 682 return (error); 683 684 if (ctlr->ch_suspend != NULL && (error = ctlr->ch_suspend(dev))) 685 return (error); 686 687 return (0); 688 } 689 690 static int 691 ata_pcichannel_resume(device_t dev) 692 { 693 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 694 struct ata_channel *ch = device_get_softc(dev); 695 int error; 696 697 if (!ch->attached) 698 return (0); 699 700 if (ctlr->ch_resume != NULL && (error = ctlr->ch_resume(dev))) 701 return (error); 702 703 return ata_resume(dev); 704 } 705 706 static void 707 ata_pcichannel_reset(device_t dev) 708 { 709 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 710 struct ata_channel *ch = device_get_softc(dev); 711 712 /* if DMA engine present reset it */ 713 if (ch->dma.reset) 714 ch->dma.reset(dev); 715 716 /* reset the controller HW */ 717 if (ctlr->reset) 718 ctlr->reset(dev); 719 else 720 ata_generic_reset(dev); 721 } 722 723 static int 724 ata_pcichannel_setmode(device_t dev, int target, int mode) 725 { 726 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 727 728 if (ctlr->setmode) 729 return (ctlr->setmode(dev, target, mode)); 730 else 731 return (ata_generic_setmode(dev, target, mode)); 732 } 733 734 static int 735 ata_pcichannel_getrev(device_t dev, int target) 736 { 737 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 738 struct ata_channel *ch = device_get_softc(dev); 739 740 if (ch->flags & ATA_SATA) { 741 if (ctlr->getrev) 742 return (ctlr->getrev(dev, target)); 743 else 744 return (0xff); 745 } else 746 return (0); 747 } 748 749 static device_method_t ata_pcichannel_methods[] = { 750 /* device interface */ 751 DEVMETHOD(device_probe, ata_pcichannel_probe), 752 DEVMETHOD(device_attach, ata_pcichannel_attach), 753 DEVMETHOD(device_detach, ata_pcichannel_detach), 754 DEVMETHOD(device_shutdown, bus_generic_shutdown), 755 DEVMETHOD(device_suspend, ata_pcichannel_suspend), 756 DEVMETHOD(device_resume, ata_pcichannel_resume), 757 758 /* ATA methods */ 759 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 760 DEVMETHOD(ata_getrev, ata_pcichannel_getrev), 761 DEVMETHOD(ata_reset, ata_pcichannel_reset), 762 763 DEVMETHOD_END 764 }; 765 766 driver_t ata_pcichannel_driver = { 767 "ata", 768 ata_pcichannel_methods, 769 sizeof(struct ata_channel), 770 }; 771 772 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, NULL, NULL); 773 774 /* 775 * misc support fucntions 776 */ 777 int 778 ata_legacy(device_t dev) 779 { 780 return (((pci_read_config(dev, PCIR_SUBCLASS, 1) == PCIS_STORAGE_IDE) && 781 (pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV)&& 782 ((pci_read_config(dev, PCIR_PROGIF, 1) & 783 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) != 784 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))) || 785 (!pci_read_config(dev, PCIR_BAR(0), 4) && 786 !pci_read_config(dev, PCIR_BAR(1), 4) && 787 !pci_read_config(dev, PCIR_BAR(2), 4) && 788 !pci_read_config(dev, PCIR_BAR(3), 4) && 789 !pci_read_config(dev, PCIR_BAR(5), 4))); 790 } 791 792 void 793 ata_generic_intr(void *data) 794 { 795 struct ata_pci_controller *ctlr = data; 796 struct ata_channel *ch; 797 int unit; 798 799 for (unit = 0; unit < ATA_PCI_MAX_CH; unit++) { 800 if ((ch = ctlr->interrupt[unit].argument)) 801 ctlr->interrupt[unit].function(ch); 802 } 803 } 804 805 int 806 ata_setup_interrupt(device_t dev, void *intr_func) 807 { 808 struct ata_pci_controller *ctlr = device_get_softc(dev); 809 int i, msi = 0; 810 811 if (!ctlr->legacy) { 812 if (resource_int_value(device_get_name(dev), 813 device_get_unit(dev), "msi", &i) == 0 && i != 0) 814 msi = 1; 815 if (msi && pci_msi_count(dev) > 0 && pci_alloc_msi(dev, &msi) == 0) { 816 ctlr->r_irq_rid = 0x1; 817 } else { 818 msi = 0; 819 ctlr->r_irq_rid = ATA_IRQ_RID; 820 } 821 if (!(ctlr->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 822 &ctlr->r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 823 device_printf(dev, "unable to map interrupt\n"); 824 if (msi) 825 pci_release_msi(dev); 826 return ENXIO; 827 } 828 if ((bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL, 829 intr_func, ctlr, &ctlr->handle))) { 830 device_printf(dev, "unable to setup interrupt\n"); 831 bus_release_resource(dev, 832 SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq); 833 if (msi) 834 pci_release_msi(dev); 835 return ENXIO; 836 } 837 } 838 return 0; 839 } 840 841 void 842 ata_set_desc(device_t dev) 843 { 844 struct ata_pci_controller *ctlr = device_get_softc(dev); 845 char buffer[128]; 846 847 sprintf(buffer, "%s %s %s controller", 848 ata_pcivendor2str(dev), ctlr->chip->text, 849 ata_mode2str(ctlr->chip->max_dma)); 850 device_set_desc_copy(dev, buffer); 851 } 852 853 const struct ata_chip_id * 854 ata_match_chip(device_t dev, const struct ata_chip_id *index) 855 { 856 uint32_t devid; 857 uint8_t revid; 858 859 devid = pci_get_devid(dev); 860 revid = pci_get_revid(dev); 861 while (index->chipid != 0) { 862 if (devid == index->chipid && revid >= index->chiprev) 863 return (index); 864 index++; 865 } 866 return (NULL); 867 } 868 869 const struct ata_chip_id * 870 ata_find_chip(device_t dev, const struct ata_chip_id *index, int slot) 871 { 872 const struct ata_chip_id *idx; 873 device_t *children; 874 int nchildren, i; 875 uint8_t s; 876 877 if (device_get_children(device_get_parent(dev), &children, &nchildren)) 878 return (NULL); 879 880 for (i = 0; i < nchildren; i++) { 881 s = pci_get_slot(children[i]); 882 if ((slot >= 0 && s == slot) || (slot < 0 && s <= -slot)) { 883 idx = ata_match_chip(children[i], index); 884 if (idx != NULL) { 885 free(children, M_TEMP); 886 return (idx); 887 } 888 } 889 } 890 free(children, M_TEMP); 891 return (NULL); 892 } 893 894 const char * 895 ata_pcivendor2str(device_t dev) 896 { 897 switch (pci_get_vendor(dev)) { 898 case ATA_ACARD_ID: return "Acard"; 899 case ATA_ACER_LABS_ID: return "AcerLabs"; 900 case ATA_AMD_ID: return "AMD"; 901 case ATA_ADAPTEC_ID: return "Adaptec"; 902 case ATA_ATI_ID: return "ATI"; 903 case ATA_CYRIX_ID: return "Cyrix"; 904 case ATA_CYPRESS_ID: return "Cypress"; 905 case ATA_HIGHPOINT_ID: return "HighPoint"; 906 case ATA_INTEL_ID: return "Intel"; 907 case ATA_ITE_ID: return "ITE"; 908 case ATA_JMICRON_ID: return "JMicron"; 909 case ATA_MARVELL_ID: return "Marvell"; 910 case ATA_MARVELL2_ID: return "Marvell"; 911 case ATA_NATIONAL_ID: return "National"; 912 case ATA_NETCELL_ID: return "Netcell"; 913 case ATA_NVIDIA_ID: return "nVidia"; 914 case ATA_PROMISE_ID: return "Promise"; 915 case ATA_SERVERWORKS_ID: return "ServerWorks"; 916 case ATA_SILICON_IMAGE_ID: return "SiI"; 917 case ATA_SIS_ID: return "SiS"; 918 case ATA_VIA_ID: return "VIA"; 919 case ATA_CENATEK_ID: return "Cenatek"; 920 case ATA_MICRON_ID: return "Micron"; 921 default: return "Generic"; 922 } 923 } 924 925 int 926 ata_mode2idx(int mode) 927 { 928 if ((mode & ATA_DMA_MASK) == ATA_UDMA0) 929 return (mode & ATA_MODE_MASK) + 8; 930 if ((mode & ATA_DMA_MASK) == ATA_WDMA0) 931 return (mode & ATA_MODE_MASK) + 5; 932 return (mode & ATA_MODE_MASK) - ATA_PIO0; 933 } 934