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 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 102 if (!(cmd & PCIM_CMD_BUSMASTEREN)) { 103 pci_write_config(dev, PCIR_COMMAND, cmd | PCIM_CMD_BUSMASTEREN, 2); 104 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 105 } 106 107 /* if busmastering mode "stuck" use it */ 108 if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) { 109 ctlr->r_type1 = SYS_RES_IOPORT; 110 ctlr->r_rid1 = ATA_BMADDR_RID; 111 ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1, &ctlr->r_rid1, 112 RF_ACTIVE); 113 } 114 115 if (ctlr->chipinit(dev)) 116 return ENXIO; 117 118 /* attach all channels on this controller */ 119 for (unit = 0; unit < ctlr->channels; unit++) { 120 if ((ctlr->ichannels & (1 << unit)) == 0) 121 continue; 122 child = device_add_child(dev, "ata", 123 ((unit == 0 || unit == 1) && ctlr->legacy) ? 124 unit : devclass_find_free_unit(ata_devclass, 2)); 125 if (child == NULL) 126 device_printf(dev, "failed to add ata child device\n"); 127 else 128 device_set_ivars(child, (void *)(intptr_t)unit); 129 } 130 bus_generic_attach(dev); 131 return 0; 132 } 133 134 int 135 ata_pci_detach(device_t dev) 136 { 137 struct ata_pci_controller *ctlr = device_get_softc(dev); 138 139 /* detach & delete all children */ 140 device_delete_children(dev); 141 142 if (ctlr->r_irq) { 143 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle); 144 bus_release_resource(dev, SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq); 145 if (ctlr->r_irq_rid != ATA_IRQ_RID) 146 pci_release_msi(dev); 147 } 148 if (ctlr->chipdeinit != NULL) 149 ctlr->chipdeinit(dev); 150 if (ctlr->r_res2) { 151 #ifdef __sparc64__ 152 bus_space_unmap(rman_get_bustag(ctlr->r_res2), 153 rman_get_bushandle(ctlr->r_res2), rman_get_size(ctlr->r_res2)); 154 #endif 155 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2); 156 } 157 if (ctlr->r_res1) { 158 #ifdef __sparc64__ 159 bus_space_unmap(rman_get_bustag(ctlr->r_res1), 160 rman_get_bushandle(ctlr->r_res1), rman_get_size(ctlr->r_res1)); 161 #endif 162 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1); 163 } 164 165 return 0; 166 } 167 168 int 169 ata_pci_suspend(device_t dev) 170 { 171 struct ata_pci_controller *ctlr = device_get_softc(dev); 172 int error = 0; 173 174 bus_generic_suspend(dev); 175 if (ctlr->suspend) 176 error = ctlr->suspend(dev); 177 return error; 178 } 179 180 int 181 ata_pci_resume(device_t dev) 182 { 183 struct ata_pci_controller *ctlr = device_get_softc(dev); 184 int error = 0; 185 186 if (ctlr->resume) 187 error = ctlr->resume(dev); 188 bus_generic_resume(dev); 189 return error; 190 } 191 192 int 193 ata_pci_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 194 { 195 196 return (BUS_READ_IVAR(device_get_parent(dev), dev, which, result)); 197 } 198 199 int 200 ata_pci_write_ivar(device_t dev, device_t child, int which, uintptr_t value) 201 { 202 203 return (BUS_WRITE_IVAR(device_get_parent(dev), dev, which, value)); 204 } 205 206 uint32_t 207 ata_pci_read_config(device_t dev, device_t child, int reg, int width) 208 { 209 210 return (pci_read_config(dev, reg, width)); 211 } 212 213 void 214 ata_pci_write_config(device_t dev, device_t child, int reg, 215 uint32_t val, int width) 216 { 217 218 pci_write_config(dev, reg, val, width); 219 } 220 221 struct resource * 222 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, 223 u_long start, u_long end, u_long count, u_int flags) 224 { 225 struct ata_pci_controller *controller = device_get_softc(dev); 226 struct resource *res = NULL; 227 228 if (device_get_devclass(child) == ata_devclass) { 229 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 230 int myrid; 231 232 if (type == SYS_RES_IOPORT) { 233 switch (*rid) { 234 case ATA_IOADDR_RID: 235 if (controller->legacy) { 236 start = (unit ? ATA_SECONDARY : ATA_PRIMARY); 237 count = ATA_IOSIZE; 238 end = start + count - 1; 239 } 240 myrid = PCIR_BAR(0) + (unit << 3); 241 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 242 SYS_RES_IOPORT, &myrid, 243 start, end, count, flags); 244 break; 245 case ATA_CTLADDR_RID: 246 if (controller->legacy) { 247 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) + 248 ATA_CTLOFFSET; 249 count = ATA_CTLIOSIZE; 250 end = start + count - 1; 251 } 252 myrid = PCIR_BAR(1) + (unit << 3); 253 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 254 SYS_RES_IOPORT, &myrid, 255 start, end, count, flags); 256 break; 257 } 258 } 259 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) { 260 if (controller->legacy) { 261 int irq = (unit == 0 ? 14 : 15); 262 263 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 264 SYS_RES_IRQ, rid, irq, irq, 1, flags); 265 } else 266 res = controller->r_irq; 267 } 268 } else { 269 if (type == SYS_RES_IRQ) { 270 if (*rid != ATA_IRQ_RID) 271 return (NULL); 272 res = controller->r_irq; 273 } else { 274 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 275 type, rid, start, end, count, flags); 276 } 277 } 278 return (res); 279 } 280 281 int 282 ata_pci_release_resource(device_t dev, device_t child, int type, int rid, 283 struct resource *r) 284 { 285 286 if (device_get_devclass(child) == ata_devclass) { 287 struct ata_pci_controller *controller = device_get_softc(dev); 288 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 289 290 if (type == SYS_RES_IOPORT) { 291 switch (rid) { 292 case ATA_IOADDR_RID: 293 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 294 SYS_RES_IOPORT, 295 PCIR_BAR(0) + (unit << 3), r); 296 case ATA_CTLADDR_RID: 297 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 298 SYS_RES_IOPORT, 299 PCIR_BAR(1) + (unit << 3), r); 300 default: 301 return ENOENT; 302 } 303 } 304 if (type == SYS_RES_IRQ) { 305 if (rid != ATA_IRQ_RID) 306 return ENOENT; 307 if (controller->legacy) { 308 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 309 SYS_RES_IRQ, rid, r); 310 } else 311 return 0; 312 } 313 } else { 314 if (type == SYS_RES_IRQ) { 315 if (rid != ATA_IRQ_RID) 316 return (ENOENT); 317 return (0); 318 } else { 319 return (BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 320 type, rid, r)); 321 } 322 } 323 return (EINVAL); 324 } 325 326 int 327 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 328 int flags, driver_filter_t *filter, driver_intr_t *function, 329 void *argument, void **cookiep) 330 { 331 struct ata_pci_controller *controller = device_get_softc(dev); 332 333 if (controller->legacy) { 334 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 335 flags, filter, function, argument, cookiep); 336 } else { 337 struct ata_pci_controller *controller = device_get_softc(dev); 338 int unit; 339 340 if (filter != NULL) { 341 printf("ata-pci.c: we cannot use a filter here\n"); 342 return (EINVAL); 343 } 344 if (device_get_devclass(child) == ata_devclass) 345 unit = ((struct ata_channel *)device_get_softc(child))->unit; 346 else 347 unit = ATA_PCI_MAX_CH - 1; 348 controller->interrupt[unit].function = function; 349 controller->interrupt[unit].argument = argument; 350 *cookiep = controller; 351 return 0; 352 } 353 } 354 355 int 356 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 357 void *cookie) 358 { 359 struct ata_pci_controller *controller = device_get_softc(dev); 360 361 if (controller->legacy) { 362 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 363 } else { 364 struct ata_pci_controller *controller = device_get_softc(dev); 365 int unit; 366 367 if (device_get_devclass(child) == ata_devclass) 368 unit = ((struct ata_channel *)device_get_softc(child))->unit; 369 else 370 unit = ATA_PCI_MAX_CH - 1; 371 controller->interrupt[unit].function = NULL; 372 controller->interrupt[unit].argument = NULL; 373 return 0; 374 } 375 } 376 377 int 378 ata_generic_setmode(device_t dev, int target, int mode) 379 { 380 381 return (min(mode, ATA_UDMA2)); 382 } 383 384 int 385 ata_generic_chipinit(device_t dev) 386 { 387 struct ata_pci_controller *ctlr = device_get_softc(dev); 388 389 if (ata_setup_interrupt(dev, ata_generic_intr)) 390 return ENXIO; 391 ctlr->setmode = ata_generic_setmode; 392 return 0; 393 } 394 395 int 396 ata_pci_ch_attach(device_t dev) 397 { 398 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 399 struct ata_channel *ch = device_get_softc(dev); 400 struct resource *io = NULL, *ctlio = NULL; 401 int i, rid; 402 403 rid = ATA_IOADDR_RID; 404 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 405 return ENXIO; 406 407 rid = ATA_CTLADDR_RID; 408 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 409 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 410 return ENXIO; 411 } 412 413 ata_pci_dmainit(dev); 414 415 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 416 ch->r_io[i].res = io; 417 ch->r_io[i].offset = i; 418 } 419 ch->r_io[ATA_CONTROL].res = ctlio; 420 ch->r_io[ATA_CONTROL].offset = ctlr->legacy ? 0 : 2; 421 ch->r_io[ATA_IDX_ADDR].res = io; 422 ata_default_registers(dev); 423 if (ctlr->r_res1) { 424 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 425 ch->r_io[i].res = ctlr->r_res1; 426 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE); 427 } 428 } 429 430 ata_pci_hw(dev); 431 return 0; 432 } 433 434 int 435 ata_pci_ch_detach(device_t dev) 436 { 437 struct ata_channel *ch = device_get_softc(dev); 438 439 ata_pci_dmafini(dev); 440 441 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, 442 ch->r_io[ATA_CONTROL].res); 443 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, 444 ch->r_io[ATA_IDX_ADDR].res); 445 446 return (0); 447 } 448 449 int 450 ata_pci_status(device_t dev) 451 { 452 struct ata_pci_controller *controller = 453 device_get_softc(device_get_parent(dev)); 454 struct ata_channel *ch = device_get_softc(dev); 455 456 if ((dumping || !controller->legacy) && 457 ((ch->flags & ATA_ALWAYS_DMASTAT) || 458 (ch->dma.flags & ATA_DMA_ACTIVE))) { 459 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 460 461 if ((bmstat & ATA_BMSTAT_INTERRUPT) == 0) 462 return 0; 463 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 464 DELAY(1); 465 } 466 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 467 DELAY(100); 468 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 469 return 0; 470 } 471 return 1; 472 } 473 474 void 475 ata_pci_hw(device_t dev) 476 { 477 struct ata_channel *ch = device_get_softc(dev); 478 479 ata_generic_hw(dev); 480 ch->hw.status = ata_pci_status; 481 } 482 483 static int 484 ata_pci_dmastart(struct ata_request *request) 485 { 486 struct ata_channel *ch = device_get_softc(request->parent); 487 488 ATA_DEBUG_RQ(request, "dmastart"); 489 490 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 491 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 492 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus); 493 ch->dma.flags |= ATA_DMA_ACTIVE; 494 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 495 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) | 496 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0)| 497 ATA_BMCMD_START_STOP); 498 return 0; 499 } 500 501 static int 502 ata_pci_dmastop(struct ata_request *request) 503 { 504 struct ata_channel *ch = device_get_softc(request->parent); 505 int error; 506 507 ATA_DEBUG_RQ(request, "dmastop"); 508 509 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 510 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 511 ch->dma.flags &= ~ATA_DMA_ACTIVE; 512 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 513 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 514 return error; 515 } 516 517 static void 518 ata_pci_dmareset(device_t dev) 519 { 520 struct ata_channel *ch = device_get_softc(dev); 521 struct ata_request *request; 522 523 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 524 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 525 ch->dma.flags &= ~ATA_DMA_ACTIVE; 526 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 527 if ((request = ch->running)) { 528 device_printf(dev, "DMA reset calling unload\n"); 529 ch->dma.unload(request); 530 } 531 } 532 533 void 534 ata_pci_dmainit(device_t dev) 535 { 536 struct ata_channel *ch = device_get_softc(dev); 537 538 ata_dmainit(dev); 539 ch->dma.start = ata_pci_dmastart; 540 ch->dma.stop = ata_pci_dmastop; 541 ch->dma.reset = ata_pci_dmareset; 542 } 543 544 void 545 ata_pci_dmafini(device_t dev) 546 { 547 548 ata_dmafini(dev); 549 } 550 551 int 552 ata_pci_print_child(device_t dev, device_t child) 553 { 554 int retval; 555 556 retval = bus_print_child_header(dev, child); 557 retval += printf(" at channel %d", 558 (int)(intptr_t)device_get_ivars(child)); 559 retval += bus_print_child_footer(dev, child); 560 561 return (retval); 562 } 563 564 int 565 ata_pci_child_location_str(device_t dev, device_t child, char *buf, 566 size_t buflen) 567 { 568 569 snprintf(buf, buflen, "channel=%d", 570 (int)(intptr_t)device_get_ivars(child)); 571 return (0); 572 } 573 574 static bus_dma_tag_t 575 ata_pci_get_dma_tag(device_t bus, device_t child) 576 { 577 578 return (bus_get_dma_tag(bus)); 579 } 580 581 static device_method_t ata_pci_methods[] = { 582 /* device interface */ 583 DEVMETHOD(device_probe, ata_pci_probe), 584 DEVMETHOD(device_attach, ata_pci_attach), 585 DEVMETHOD(device_detach, ata_pci_detach), 586 DEVMETHOD(device_suspend, ata_pci_suspend), 587 DEVMETHOD(device_resume, ata_pci_resume), 588 DEVMETHOD(device_shutdown, bus_generic_shutdown), 589 590 /* bus methods */ 591 DEVMETHOD(bus_read_ivar, ata_pci_read_ivar), 592 DEVMETHOD(bus_write_ivar, ata_pci_write_ivar), 593 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource), 594 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 595 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 596 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 597 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 598 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 599 DEVMETHOD(pci_read_config, ata_pci_read_config), 600 DEVMETHOD(pci_write_config, ata_pci_write_config), 601 DEVMETHOD(bus_print_child, ata_pci_print_child), 602 DEVMETHOD(bus_child_location_str, ata_pci_child_location_str), 603 DEVMETHOD(bus_get_dma_tag, ata_pci_get_dma_tag), 604 605 DEVMETHOD_END 606 }; 607 608 devclass_t ata_pci_devclass; 609 610 static driver_t ata_pci_driver = { 611 "atapci", 612 ata_pci_methods, 613 sizeof(struct ata_pci_controller), 614 }; 615 616 DRIVER_MODULE(atapci, pci, ata_pci_driver, ata_pci_devclass, NULL, NULL); 617 MODULE_VERSION(atapci, 1); 618 MODULE_DEPEND(atapci, ata, 1, 1, 1); 619 620 static int 621 ata_pcichannel_probe(device_t dev) 622 { 623 624 if ((intptr_t)device_get_ivars(dev) < 0) 625 return (ENXIO); 626 device_set_desc(dev, "ATA channel"); 627 628 return ata_probe(dev); 629 } 630 631 static int 632 ata_pcichannel_attach(device_t dev) 633 { 634 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 635 struct ata_channel *ch = device_get_softc(dev); 636 int error; 637 638 if (ch->attached) 639 return (0); 640 ch->attached = 1; 641 642 ch->dev = dev; 643 ch->unit = (intptr_t)device_get_ivars(dev); 644 645 resource_int_value(device_get_name(dev), 646 device_get_unit(dev), "pm_level", &ch->pm_level); 647 648 if ((error = ctlr->ch_attach(dev))) 649 return error; 650 651 return ata_attach(dev); 652 } 653 654 static int 655 ata_pcichannel_detach(device_t dev) 656 { 657 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 658 struct ata_channel *ch = device_get_softc(dev); 659 int error; 660 661 if (!ch->attached) 662 return (0); 663 ch->attached = 0; 664 665 if ((error = ata_detach(dev))) 666 return error; 667 668 if (ctlr->ch_detach) 669 return (ctlr->ch_detach(dev)); 670 671 return (0); 672 } 673 static int 674 ata_pcichannel_suspend(device_t dev) 675 { 676 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 677 struct ata_channel *ch = device_get_softc(dev); 678 int error; 679 680 if (!ch->attached) 681 return (0); 682 683 if ((error = ata_suspend(dev))) 684 return (error); 685 686 if (ctlr->ch_suspend != NULL && (error = ctlr->ch_suspend(dev))) 687 return (error); 688 689 return (0); 690 } 691 692 static int 693 ata_pcichannel_resume(device_t dev) 694 { 695 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 696 struct ata_channel *ch = device_get_softc(dev); 697 int error; 698 699 if (!ch->attached) 700 return (0); 701 702 if (ctlr->ch_resume != NULL && (error = ctlr->ch_resume(dev))) 703 return (error); 704 705 return ata_resume(dev); 706 } 707 708 static void 709 ata_pcichannel_reset(device_t dev) 710 { 711 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 712 struct ata_channel *ch = device_get_softc(dev); 713 714 /* if DMA engine present reset it */ 715 if (ch->dma.reset) 716 ch->dma.reset(dev); 717 718 /* reset the controller HW */ 719 if (ctlr->reset) 720 ctlr->reset(dev); 721 else 722 ata_generic_reset(dev); 723 } 724 725 static int 726 ata_pcichannel_setmode(device_t dev, int target, int mode) 727 { 728 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 729 730 if (ctlr->setmode) 731 return (ctlr->setmode(dev, target, mode)); 732 else 733 return (ata_generic_setmode(dev, target, mode)); 734 } 735 736 static int 737 ata_pcichannel_getrev(device_t dev, int target) 738 { 739 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 740 struct ata_channel *ch = device_get_softc(dev); 741 742 if (ch->flags & ATA_SATA) { 743 if (ctlr->getrev) 744 return (ctlr->getrev(dev, target)); 745 else 746 return (0xff); 747 } else 748 return (0); 749 } 750 751 static device_method_t ata_pcichannel_methods[] = { 752 /* device interface */ 753 DEVMETHOD(device_probe, ata_pcichannel_probe), 754 DEVMETHOD(device_attach, ata_pcichannel_attach), 755 DEVMETHOD(device_detach, ata_pcichannel_detach), 756 DEVMETHOD(device_shutdown, bus_generic_shutdown), 757 DEVMETHOD(device_suspend, ata_pcichannel_suspend), 758 DEVMETHOD(device_resume, ata_pcichannel_resume), 759 760 /* ATA methods */ 761 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 762 DEVMETHOD(ata_getrev, ata_pcichannel_getrev), 763 DEVMETHOD(ata_reset, ata_pcichannel_reset), 764 765 DEVMETHOD_END 766 }; 767 768 driver_t ata_pcichannel_driver = { 769 "ata", 770 ata_pcichannel_methods, 771 sizeof(struct ata_channel), 772 }; 773 774 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, NULL, NULL); 775 776 /* 777 * misc support fucntions 778 */ 779 int 780 ata_legacy(device_t dev) 781 { 782 return (((pci_read_config(dev, PCIR_SUBCLASS, 1) == PCIS_STORAGE_IDE) && 783 (pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV)&& 784 ((pci_read_config(dev, PCIR_PROGIF, 1) & 785 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) != 786 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))) || 787 (!pci_read_config(dev, PCIR_BAR(0), 4) && 788 !pci_read_config(dev, PCIR_BAR(1), 4) && 789 !pci_read_config(dev, PCIR_BAR(2), 4) && 790 !pci_read_config(dev, PCIR_BAR(3), 4) && 791 !pci_read_config(dev, PCIR_BAR(5), 4))); 792 } 793 794 void 795 ata_generic_intr(void *data) 796 { 797 struct ata_pci_controller *ctlr = data; 798 struct ata_channel *ch; 799 int unit; 800 801 for (unit = 0; unit < ATA_PCI_MAX_CH; unit++) { 802 if ((ch = ctlr->interrupt[unit].argument)) 803 ctlr->interrupt[unit].function(ch); 804 } 805 } 806 807 int 808 ata_setup_interrupt(device_t dev, void *intr_func) 809 { 810 struct ata_pci_controller *ctlr = device_get_softc(dev); 811 int i, msi = 0; 812 813 if (!ctlr->legacy) { 814 if (resource_int_value(device_get_name(dev), 815 device_get_unit(dev), "msi", &i) == 0 && i != 0) 816 msi = 1; 817 if (msi && pci_msi_count(dev) > 0 && pci_alloc_msi(dev, &msi) == 0) { 818 ctlr->r_irq_rid = 0x1; 819 } else { 820 msi = 0; 821 ctlr->r_irq_rid = ATA_IRQ_RID; 822 } 823 if (!(ctlr->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 824 &ctlr->r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 825 device_printf(dev, "unable to map interrupt\n"); 826 if (msi) 827 pci_release_msi(dev); 828 return ENXIO; 829 } 830 if ((bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL, 831 intr_func, ctlr, &ctlr->handle))) { 832 device_printf(dev, "unable to setup interrupt\n"); 833 bus_release_resource(dev, 834 SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq); 835 if (msi) 836 pci_release_msi(dev); 837 return ENXIO; 838 } 839 } 840 return 0; 841 } 842 843 void 844 ata_set_desc(device_t dev) 845 { 846 struct ata_pci_controller *ctlr = device_get_softc(dev); 847 char buffer[128]; 848 849 sprintf(buffer, "%s %s %s controller", 850 ata_pcivendor2str(dev), ctlr->chip->text, 851 ata_mode2str(ctlr->chip->max_dma)); 852 device_set_desc_copy(dev, buffer); 853 } 854 855 const struct ata_chip_id * 856 ata_match_chip(device_t dev, const struct ata_chip_id *index) 857 { 858 uint32_t devid; 859 uint8_t revid; 860 861 devid = pci_get_devid(dev); 862 revid = pci_get_revid(dev); 863 while (index->chipid != 0) { 864 if (devid == index->chipid && revid >= index->chiprev) 865 return (index); 866 index++; 867 } 868 return (NULL); 869 } 870 871 const struct ata_chip_id * 872 ata_find_chip(device_t dev, const struct ata_chip_id *index, int slot) 873 { 874 const struct ata_chip_id *idx; 875 device_t *children; 876 int nchildren, i; 877 uint8_t s; 878 879 if (device_get_children(device_get_parent(dev), &children, &nchildren)) 880 return (NULL); 881 882 for (i = 0; i < nchildren; i++) { 883 s = pci_get_slot(children[i]); 884 if ((slot >= 0 && s == slot) || (slot < 0 && s <= -slot)) { 885 idx = ata_match_chip(children[i], index); 886 if (idx != NULL) { 887 free(children, M_TEMP); 888 return (idx); 889 } 890 } 891 } 892 free(children, M_TEMP); 893 return (NULL); 894 } 895 896 const char * 897 ata_pcivendor2str(device_t dev) 898 { 899 switch (pci_get_vendor(dev)) { 900 case ATA_ACARD_ID: return "Acard"; 901 case ATA_ACER_LABS_ID: return "AcerLabs"; 902 case ATA_AMD_ID: return "AMD"; 903 case ATA_ADAPTEC_ID: return "Adaptec"; 904 case ATA_ATI_ID: return "ATI"; 905 case ATA_CYRIX_ID: return "Cyrix"; 906 case ATA_CYPRESS_ID: return "Cypress"; 907 case ATA_HIGHPOINT_ID: return "HighPoint"; 908 case ATA_INTEL_ID: return "Intel"; 909 case ATA_ITE_ID: return "ITE"; 910 case ATA_JMICRON_ID: return "JMicron"; 911 case ATA_MARVELL_ID: return "Marvell"; 912 case ATA_MARVELL2_ID: return "Marvell"; 913 case ATA_NATIONAL_ID: return "National"; 914 case ATA_NETCELL_ID: return "Netcell"; 915 case ATA_NVIDIA_ID: return "nVidia"; 916 case ATA_PROMISE_ID: return "Promise"; 917 case ATA_SERVERWORKS_ID: return "ServerWorks"; 918 case ATA_SILICON_IMAGE_ID: return "SiI"; 919 case ATA_SIS_ID: return "SiS"; 920 case ATA_VIA_ID: return "VIA"; 921 case ATA_CENATEK_ID: return "Cenatek"; 922 case ATA_MICRON_ID: return "Micron"; 923 default: return "Generic"; 924 } 925 } 926 927 int 928 ata_mode2idx(int mode) 929 { 930 if ((mode & ATA_DMA_MASK) == ATA_UDMA0) 931 return (mode & ATA_MODE_MASK) + 8; 932 if ((mode & ATA_DMA_MASK) == ATA_WDMA0) 933 return (mode & ATA_MODE_MASK) + 5; 934 return (mode & ATA_MODE_MASK) - ATA_PIO0; 935 } 936