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 MALLOC_DEFINE(M_ATAPCI, "ata_pci", "ATA driver PCI"); 53 54 /* misc defines */ 55 #define IOMASK 0xfffffffc 56 57 /* 58 * generic PCI ATA device probe 59 */ 60 int 61 ata_pci_probe(device_t dev) 62 { 63 struct ata_pci_controller *ctlr = device_get_softc(dev); 64 char buffer[64]; 65 66 /* is this a storage class device ? */ 67 if (pci_get_class(dev) != PCIC_STORAGE) 68 return (ENXIO); 69 70 /* is this an IDE/ATA type device ? */ 71 if (pci_get_subclass(dev) != PCIS_STORAGE_IDE) 72 return (ENXIO); 73 74 sprintf(buffer, "%s ATA controller", ata_pcivendor2str(dev)); 75 device_set_desc_copy(dev, buffer); 76 ctlr->chipinit = ata_generic_chipinit; 77 78 /* we are a low priority handler */ 79 return (BUS_PROBE_GENERIC); 80 } 81 82 int 83 ata_pci_attach(device_t dev) 84 { 85 struct ata_pci_controller *ctlr = device_get_softc(dev); 86 device_t child; 87 u_int32_t cmd; 88 int unit; 89 90 /* do chipset specific setups only needed once */ 91 ctlr->legacy = ata_legacy(dev); 92 if (ctlr->legacy || pci_read_config(dev, PCIR_BAR(2), 4) & IOMASK) 93 ctlr->channels = 2; 94 else 95 ctlr->channels = 1; 96 ctlr->ichannels = -1; 97 ctlr->ch_attach = ata_pci_ch_attach; 98 ctlr->ch_detach = ata_pci_ch_detach; 99 ctlr->dev = dev; 100 101 /* if needed try to enable busmastering */ 102 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 103 if (!(cmd & PCIM_CMD_BUSMASTEREN)) { 104 pci_write_config(dev, PCIR_COMMAND, cmd | PCIM_CMD_BUSMASTEREN, 2); 105 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 106 } 107 108 /* if busmastering mode "stuck" use it */ 109 if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) { 110 ctlr->r_type1 = SYS_RES_IOPORT; 111 ctlr->r_rid1 = ATA_BMADDR_RID; 112 ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1, &ctlr->r_rid1, 113 RF_ACTIVE); 114 } 115 116 if (ctlr->chipinit(dev)) 117 return ENXIO; 118 119 /* attach all channels on this controller */ 120 for (unit = 0; unit < ctlr->channels; unit++) { 121 if ((ctlr->ichannels & (1 << unit)) == 0) 122 continue; 123 child = device_add_child(dev, "ata", 124 ((unit == 0 || unit == 1) && ctlr->legacy) ? 125 unit : devclass_find_free_unit(ata_devclass, 2)); 126 if (child == NULL) 127 device_printf(dev, "failed to add ata child device\n"); 128 else 129 device_set_ivars(child, (void *)(intptr_t)unit); 130 } 131 bus_generic_attach(dev); 132 return 0; 133 } 134 135 int 136 ata_pci_detach(device_t dev) 137 { 138 struct ata_pci_controller *ctlr = device_get_softc(dev); 139 140 /* detach & delete all children */ 141 device_delete_children(dev); 142 143 if (ctlr->r_irq) { 144 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle); 145 bus_release_resource(dev, SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq); 146 if (ctlr->r_irq_rid != ATA_IRQ_RID) 147 pci_release_msi(dev); 148 } 149 if (ctlr->chipdeinit != NULL) 150 ctlr->chipdeinit(dev); 151 if (ctlr->r_res2) { 152 #ifdef __sparc64__ 153 bus_space_unmap(rman_get_bustag(ctlr->r_res2), 154 rman_get_bushandle(ctlr->r_res2), rman_get_size(ctlr->r_res2)); 155 #endif 156 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2); 157 } 158 if (ctlr->r_res1) { 159 #ifdef __sparc64__ 160 bus_space_unmap(rman_get_bustag(ctlr->r_res1), 161 rman_get_bushandle(ctlr->r_res1), rman_get_size(ctlr->r_res1)); 162 #endif 163 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1); 164 } 165 166 return 0; 167 } 168 169 int 170 ata_pci_suspend(device_t dev) 171 { 172 struct ata_pci_controller *ctlr = device_get_softc(dev); 173 int error = 0; 174 175 bus_generic_suspend(dev); 176 if (ctlr->suspend) 177 error = ctlr->suspend(dev); 178 return error; 179 } 180 181 int 182 ata_pci_resume(device_t dev) 183 { 184 struct ata_pci_controller *ctlr = device_get_softc(dev); 185 int error = 0; 186 187 if (ctlr->resume) 188 error = ctlr->resume(dev); 189 bus_generic_resume(dev); 190 return error; 191 } 192 193 int 194 ata_pci_read_ivar(device_t dev, device_t child, int which, uintptr_t *result) 195 { 196 197 return (BUS_READ_IVAR(device_get_parent(dev), dev, which, result)); 198 } 199 200 int 201 ata_pci_write_ivar(device_t dev, device_t child, int which, uintptr_t value) 202 { 203 204 return (BUS_WRITE_IVAR(device_get_parent(dev), dev, which, value)); 205 } 206 207 uint32_t 208 ata_pci_read_config(device_t dev, device_t child, int reg, int width) 209 { 210 211 return (pci_read_config(dev, reg, width)); 212 } 213 214 void 215 ata_pci_write_config(device_t dev, device_t child, int reg, 216 uint32_t val, int width) 217 { 218 219 pci_write_config(dev, reg, val, width); 220 } 221 222 struct resource * 223 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, 224 u_long start, u_long end, u_long count, u_int flags) 225 { 226 struct ata_pci_controller *controller = device_get_softc(dev); 227 struct resource *res = NULL; 228 229 if (device_get_devclass(child) == ata_devclass) { 230 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 231 int myrid; 232 233 if (type == SYS_RES_IOPORT) { 234 switch (*rid) { 235 case ATA_IOADDR_RID: 236 if (controller->legacy) { 237 start = (unit ? ATA_SECONDARY : ATA_PRIMARY); 238 count = ATA_IOSIZE; 239 end = start + count - 1; 240 } 241 myrid = PCIR_BAR(0) + (unit << 3); 242 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 243 SYS_RES_IOPORT, &myrid, 244 start, end, count, flags); 245 break; 246 case ATA_CTLADDR_RID: 247 if (controller->legacy) { 248 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) + 249 ATA_CTLOFFSET; 250 count = ATA_CTLIOSIZE; 251 end = start + count - 1; 252 } 253 myrid = PCIR_BAR(1) + (unit << 3); 254 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 255 SYS_RES_IOPORT, &myrid, 256 start, end, count, flags); 257 break; 258 } 259 } 260 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) { 261 if (controller->legacy) { 262 int irq = (unit == 0 ? 14 : 15); 263 264 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 265 SYS_RES_IRQ, rid, irq, irq, 1, flags); 266 } else 267 res = controller->r_irq; 268 } 269 } else { 270 if (type == SYS_RES_IRQ) { 271 if (*rid != ATA_IRQ_RID) 272 return (NULL); 273 res = controller->r_irq; 274 } else { 275 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 276 type, rid, start, end, count, flags); 277 } 278 } 279 return (res); 280 } 281 282 int 283 ata_pci_release_resource(device_t dev, device_t child, int type, int rid, 284 struct resource *r) 285 { 286 287 if (device_get_devclass(child) == ata_devclass) { 288 struct ata_pci_controller *controller = device_get_softc(dev); 289 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 290 291 if (type == SYS_RES_IOPORT) { 292 switch (rid) { 293 case ATA_IOADDR_RID: 294 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 295 SYS_RES_IOPORT, 296 PCIR_BAR(0) + (unit << 3), r); 297 case ATA_CTLADDR_RID: 298 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 299 SYS_RES_IOPORT, 300 PCIR_BAR(1) + (unit << 3), r); 301 default: 302 return ENOENT; 303 } 304 } 305 if (type == SYS_RES_IRQ) { 306 if (rid != ATA_IRQ_RID) 307 return ENOENT; 308 if (controller->legacy) { 309 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 310 SYS_RES_IRQ, rid, r); 311 } else 312 return 0; 313 } 314 } else { 315 if (type == SYS_RES_IRQ) { 316 if (rid != ATA_IRQ_RID) 317 return (ENOENT); 318 return (0); 319 } else { 320 return (BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 321 type, rid, r)); 322 } 323 } 324 return (EINVAL); 325 } 326 327 int 328 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 329 int flags, driver_filter_t *filter, driver_intr_t *function, 330 void *argument, void **cookiep) 331 { 332 struct ata_pci_controller *controller = device_get_softc(dev); 333 334 if (controller->legacy) { 335 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 336 flags, filter, function, argument, cookiep); 337 } else { 338 struct ata_pci_controller *controller = device_get_softc(dev); 339 int unit; 340 341 if (filter != NULL) { 342 printf("ata-pci.c: we cannot use a filter here\n"); 343 return (EINVAL); 344 } 345 if (device_get_devclass(child) == ata_devclass) 346 unit = ((struct ata_channel *)device_get_softc(child))->unit; 347 else 348 unit = ATA_PCI_MAX_CH - 1; 349 controller->interrupt[unit].function = function; 350 controller->interrupt[unit].argument = argument; 351 *cookiep = controller; 352 return 0; 353 } 354 } 355 356 int 357 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 358 void *cookie) 359 { 360 struct ata_pci_controller *controller = device_get_softc(dev); 361 362 if (controller->legacy) { 363 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 364 } else { 365 struct ata_pci_controller *controller = device_get_softc(dev); 366 int unit; 367 368 if (device_get_devclass(child) == ata_devclass) 369 unit = ((struct ata_channel *)device_get_softc(child))->unit; 370 else 371 unit = ATA_PCI_MAX_CH - 1; 372 controller->interrupt[unit].function = NULL; 373 controller->interrupt[unit].argument = NULL; 374 return 0; 375 } 376 } 377 378 int 379 ata_generic_setmode(device_t dev, int target, int mode) 380 { 381 382 return (min(mode, ATA_UDMA2)); 383 } 384 385 int 386 ata_generic_chipinit(device_t dev) 387 { 388 struct ata_pci_controller *ctlr = device_get_softc(dev); 389 390 if (ata_setup_interrupt(dev, ata_generic_intr)) 391 return ENXIO; 392 ctlr->setmode = ata_generic_setmode; 393 return 0; 394 } 395 396 int 397 ata_pci_ch_attach(device_t dev) 398 { 399 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 400 struct ata_channel *ch = device_get_softc(dev); 401 struct resource *io = NULL, *ctlio = NULL; 402 int i, rid; 403 404 rid = ATA_IOADDR_RID; 405 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 406 return ENXIO; 407 408 rid = ATA_CTLADDR_RID; 409 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 410 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 411 return ENXIO; 412 } 413 414 ata_pci_dmainit(dev); 415 416 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 417 ch->r_io[i].res = io; 418 ch->r_io[i].offset = i; 419 } 420 ch->r_io[ATA_CONTROL].res = ctlio; 421 ch->r_io[ATA_CONTROL].offset = ctlr->legacy ? 0 : 2; 422 ch->r_io[ATA_IDX_ADDR].res = io; 423 ata_default_registers(dev); 424 if (ctlr->r_res1) { 425 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 426 ch->r_io[i].res = ctlr->r_res1; 427 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE); 428 } 429 } 430 431 ata_pci_hw(dev); 432 return 0; 433 } 434 435 int 436 ata_pci_ch_detach(device_t dev) 437 { 438 struct ata_channel *ch = device_get_softc(dev); 439 440 ata_pci_dmafini(dev); 441 442 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, 443 ch->r_io[ATA_CONTROL].res); 444 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, 445 ch->r_io[ATA_IDX_ADDR].res); 446 447 return (0); 448 } 449 450 int 451 ata_pci_status(device_t dev) 452 { 453 struct ata_pci_controller *controller = 454 device_get_softc(device_get_parent(dev)); 455 struct ata_channel *ch = device_get_softc(dev); 456 457 if ((dumping || !controller->legacy) && 458 ((ch->flags & ATA_ALWAYS_DMASTAT) || 459 (ch->dma.flags & ATA_DMA_ACTIVE))) { 460 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 461 462 if ((bmstat & ATA_BMSTAT_INTERRUPT) == 0) 463 return 0; 464 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 465 DELAY(1); 466 } 467 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 468 DELAY(100); 469 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 470 return 0; 471 } 472 return 1; 473 } 474 475 void 476 ata_pci_hw(device_t dev) 477 { 478 struct ata_channel *ch = device_get_softc(dev); 479 480 ata_generic_hw(dev); 481 ch->hw.status = ata_pci_status; 482 } 483 484 static int 485 ata_pci_dmastart(struct ata_request *request) 486 { 487 struct ata_channel *ch = device_get_softc(request->parent); 488 489 ATA_DEBUG_RQ(request, "dmastart"); 490 491 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 492 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 493 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus); 494 ch->dma.flags |= ATA_DMA_ACTIVE; 495 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 496 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) | 497 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0)| 498 ATA_BMCMD_START_STOP); 499 return 0; 500 } 501 502 static int 503 ata_pci_dmastop(struct ata_request *request) 504 { 505 struct ata_channel *ch = device_get_softc(request->parent); 506 int error; 507 508 ATA_DEBUG_RQ(request, "dmastop"); 509 510 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 511 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 512 ch->dma.flags &= ~ATA_DMA_ACTIVE; 513 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 514 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 515 return error; 516 } 517 518 static void 519 ata_pci_dmareset(device_t dev) 520 { 521 struct ata_channel *ch = device_get_softc(dev); 522 struct ata_request *request; 523 524 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 525 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 526 ch->dma.flags &= ~ATA_DMA_ACTIVE; 527 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 528 if ((request = ch->running)) { 529 device_printf(dev, "DMA reset calling unload\n"); 530 ch->dma.unload(request); 531 } 532 } 533 534 void 535 ata_pci_dmainit(device_t dev) 536 { 537 struct ata_channel *ch = device_get_softc(dev); 538 539 ata_dmainit(dev); 540 ch->dma.start = ata_pci_dmastart; 541 ch->dma.stop = ata_pci_dmastop; 542 ch->dma.reset = ata_pci_dmareset; 543 } 544 545 void 546 ata_pci_dmafini(device_t dev) 547 { 548 549 ata_dmafini(dev); 550 } 551 552 int 553 ata_pci_print_child(device_t dev, device_t child) 554 { 555 int retval; 556 557 retval = bus_print_child_header(dev, child); 558 retval += printf(" at channel %d", 559 (int)(intptr_t)device_get_ivars(child)); 560 retval += bus_print_child_footer(dev, child); 561 562 return (retval); 563 } 564 565 int 566 ata_pci_child_location_str(device_t dev, device_t child, char *buf, 567 size_t buflen) 568 { 569 570 snprintf(buf, buflen, "channel=%d", 571 (int)(intptr_t)device_get_ivars(child)); 572 return (0); 573 } 574 575 static device_method_t ata_pci_methods[] = { 576 /* device interface */ 577 DEVMETHOD(device_probe, ata_pci_probe), 578 DEVMETHOD(device_attach, ata_pci_attach), 579 DEVMETHOD(device_detach, ata_pci_detach), 580 DEVMETHOD(device_suspend, ata_pci_suspend), 581 DEVMETHOD(device_resume, ata_pci_resume), 582 DEVMETHOD(device_shutdown, bus_generic_shutdown), 583 584 /* bus methods */ 585 DEVMETHOD(bus_read_ivar, ata_pci_read_ivar), 586 DEVMETHOD(bus_write_ivar, ata_pci_write_ivar), 587 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource), 588 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 589 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 590 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 591 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 592 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 593 DEVMETHOD(pci_read_config, ata_pci_read_config), 594 DEVMETHOD(pci_write_config, ata_pci_write_config), 595 DEVMETHOD(bus_print_child, ata_pci_print_child), 596 DEVMETHOD(bus_child_location_str, ata_pci_child_location_str), 597 598 { 0, 0 } 599 }; 600 601 devclass_t ata_pci_devclass; 602 603 static driver_t ata_pci_driver = { 604 "atapci", 605 ata_pci_methods, 606 sizeof(struct ata_pci_controller), 607 }; 608 609 DRIVER_MODULE(atapci, pci, ata_pci_driver, ata_pci_devclass, 0, 0); 610 MODULE_VERSION(atapci, 1); 611 MODULE_DEPEND(atapci, ata, 1, 1, 1); 612 613 static int 614 ata_pcichannel_probe(device_t dev) 615 { 616 617 if ((intptr_t)device_get_ivars(dev) < 0) 618 return (ENXIO); 619 device_set_desc(dev, "ATA channel"); 620 621 return ata_probe(dev); 622 } 623 624 static int 625 ata_pcichannel_attach(device_t dev) 626 { 627 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 628 struct ata_channel *ch = device_get_softc(dev); 629 int error; 630 631 if (ch->attached) 632 return (0); 633 ch->attached = 1; 634 635 ch->dev = dev; 636 ch->unit = (intptr_t)device_get_ivars(dev); 637 638 resource_int_value(device_get_name(dev), 639 device_get_unit(dev), "pm_level", &ch->pm_level); 640 641 if ((error = ctlr->ch_attach(dev))) 642 return error; 643 644 return ata_attach(dev); 645 } 646 647 static int 648 ata_pcichannel_detach(device_t dev) 649 { 650 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 651 struct ata_channel *ch = device_get_softc(dev); 652 int error; 653 654 if (!ch->attached) 655 return (0); 656 ch->attached = 0; 657 658 if ((error = ata_detach(dev))) 659 return error; 660 661 if (ctlr->ch_detach) 662 return (ctlr->ch_detach(dev)); 663 664 return (0); 665 } 666 static int 667 ata_pcichannel_suspend(device_t dev) 668 { 669 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 670 struct ata_channel *ch = device_get_softc(dev); 671 int error; 672 673 if (!ch->attached) 674 return (0); 675 676 if ((error = ata_suspend(dev))) 677 return (error); 678 679 if (ctlr->ch_suspend != NULL && (error = ctlr->ch_suspend(dev))) 680 return (error); 681 682 return (0); 683 } 684 685 static int 686 ata_pcichannel_resume(device_t dev) 687 { 688 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 689 struct ata_channel *ch = device_get_softc(dev); 690 int error; 691 692 if (!ch->attached) 693 return (0); 694 695 if (ctlr->ch_resume != NULL && (error = ctlr->ch_resume(dev))) 696 return (error); 697 698 return ata_resume(dev); 699 } 700 701 702 static int 703 ata_pcichannel_locking(device_t dev, int mode) 704 { 705 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 706 struct ata_channel *ch = device_get_softc(dev); 707 708 if (ctlr->locking) 709 return ctlr->locking(dev, mode); 710 else 711 return ch->unit; 712 } 713 714 static void 715 ata_pcichannel_reset(device_t dev) 716 { 717 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 718 struct ata_channel *ch = device_get_softc(dev); 719 720 /* if DMA engine present reset it */ 721 if (ch->dma.reset) 722 ch->dma.reset(dev); 723 724 /* reset the controller HW */ 725 if (ctlr->reset) 726 ctlr->reset(dev); 727 else 728 ata_generic_reset(dev); 729 } 730 731 static int 732 ata_pcichannel_setmode(device_t dev, int target, int mode) 733 { 734 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 735 736 if (ctlr->setmode) 737 return (ctlr->setmode(dev, target, mode)); 738 else 739 return (ata_generic_setmode(dev, target, mode)); 740 } 741 742 static int 743 ata_pcichannel_getrev(device_t dev, int target) 744 { 745 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 746 struct ata_channel *ch = device_get_softc(dev); 747 748 if (ch->flags & ATA_SATA) { 749 if (ctlr->getrev) 750 return (ctlr->getrev(dev, target)); 751 else 752 return (0xff); 753 } else 754 return (0); 755 } 756 757 static device_method_t ata_pcichannel_methods[] = { 758 /* device interface */ 759 DEVMETHOD(device_probe, ata_pcichannel_probe), 760 DEVMETHOD(device_attach, ata_pcichannel_attach), 761 DEVMETHOD(device_detach, ata_pcichannel_detach), 762 DEVMETHOD(device_shutdown, bus_generic_shutdown), 763 DEVMETHOD(device_suspend, ata_pcichannel_suspend), 764 DEVMETHOD(device_resume, ata_pcichannel_resume), 765 766 /* ATA methods */ 767 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 768 DEVMETHOD(ata_getrev, ata_pcichannel_getrev), 769 DEVMETHOD(ata_locking, ata_pcichannel_locking), 770 DEVMETHOD(ata_reset, ata_pcichannel_reset), 771 772 { 0, 0 } 773 }; 774 775 driver_t ata_pcichannel_driver = { 776 "ata", 777 ata_pcichannel_methods, 778 sizeof(struct ata_channel), 779 }; 780 781 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, 0, 0); 782 783 /* 784 * misc support fucntions 785 */ 786 int 787 ata_legacy(device_t dev) 788 { 789 return (((pci_read_config(dev, PCIR_SUBCLASS, 1) == PCIS_STORAGE_IDE) && 790 (pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV)&& 791 ((pci_read_config(dev, PCIR_PROGIF, 1) & 792 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) != 793 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))) || 794 (!pci_read_config(dev, PCIR_BAR(0), 4) && 795 !pci_read_config(dev, PCIR_BAR(1), 4) && 796 !pci_read_config(dev, PCIR_BAR(2), 4) && 797 !pci_read_config(dev, PCIR_BAR(3), 4) && 798 !pci_read_config(dev, PCIR_BAR(5), 4))); 799 } 800 801 void 802 ata_generic_intr(void *data) 803 { 804 struct ata_pci_controller *ctlr = data; 805 struct ata_channel *ch; 806 int unit; 807 808 for (unit = 0; unit < ATA_PCI_MAX_CH; unit++) { 809 if ((ch = ctlr->interrupt[unit].argument)) 810 ctlr->interrupt[unit].function(ch); 811 } 812 } 813 814 int 815 ata_setup_interrupt(device_t dev, void *intr_func) 816 { 817 struct ata_pci_controller *ctlr = device_get_softc(dev); 818 int i, msi = 0; 819 820 if (!ctlr->legacy) { 821 if (resource_int_value(device_get_name(dev), 822 device_get_unit(dev), "msi", &i) == 0 && i != 0) 823 msi = 1; 824 if (msi && pci_msi_count(dev) > 0 && pci_alloc_msi(dev, &msi) == 0) { 825 ctlr->r_irq_rid = 0x1; 826 } else { 827 msi = 0; 828 ctlr->r_irq_rid = ATA_IRQ_RID; 829 } 830 if (!(ctlr->r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 831 &ctlr->r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) { 832 device_printf(dev, "unable to map interrupt\n"); 833 if (msi) 834 pci_release_msi(dev); 835 return ENXIO; 836 } 837 if ((bus_setup_intr(dev, ctlr->r_irq, ATA_INTR_FLAGS, NULL, 838 intr_func, ctlr, &ctlr->handle))) { 839 device_printf(dev, "unable to setup interrupt\n"); 840 bus_release_resource(dev, 841 SYS_RES_IRQ, ctlr->r_irq_rid, ctlr->r_irq); 842 if (msi) 843 pci_release_msi(dev); 844 return ENXIO; 845 } 846 } 847 return 0; 848 } 849 850 void 851 ata_set_desc(device_t dev) 852 { 853 struct ata_pci_controller *ctlr = device_get_softc(dev); 854 char buffer[128]; 855 856 sprintf(buffer, "%s %s %s controller", 857 ata_pcivendor2str(dev), ctlr->chip->text, 858 ata_mode2str(ctlr->chip->max_dma)); 859 device_set_desc_copy(dev, buffer); 860 } 861 862 struct ata_chip_id * 863 ata_match_chip(device_t dev, struct ata_chip_id *index) 864 { 865 uint32_t devid; 866 uint8_t revid; 867 868 devid = pci_get_devid(dev); 869 revid = pci_get_revid(dev); 870 while (index->chipid != 0) { 871 if (devid == index->chipid && revid >= index->chiprev) 872 return (index); 873 index++; 874 } 875 return (NULL); 876 } 877 878 struct ata_chip_id * 879 ata_find_chip(device_t dev, struct ata_chip_id *index, int slot) 880 { 881 struct ata_chip_id *idx; 882 device_t *children; 883 int nchildren, i; 884 uint8_t s; 885 886 if (device_get_children(device_get_parent(dev), &children, &nchildren)) 887 return (NULL); 888 889 for (i = 0; i < nchildren; i++) { 890 s = pci_get_slot(children[i]); 891 if ((slot >= 0 && s == slot) || (slot < 0 && s <= -slot)) { 892 idx = ata_match_chip(children[i], index); 893 if (idx != NULL) { 894 free(children, M_TEMP); 895 return (idx); 896 } 897 } 898 } 899 free(children, M_TEMP); 900 return (NULL); 901 } 902 903 char * 904 ata_pcivendor2str(device_t dev) 905 { 906 switch (pci_get_vendor(dev)) { 907 case ATA_ACARD_ID: return "Acard"; 908 case ATA_ACER_LABS_ID: return "AcerLabs"; 909 case ATA_AMD_ID: return "AMD"; 910 case ATA_ADAPTEC_ID: return "Adaptec"; 911 case ATA_ATI_ID: return "ATI"; 912 case ATA_CYRIX_ID: return "Cyrix"; 913 case ATA_CYPRESS_ID: return "Cypress"; 914 case ATA_HIGHPOINT_ID: return "HighPoint"; 915 case ATA_INTEL_ID: return "Intel"; 916 case ATA_ITE_ID: return "ITE"; 917 case ATA_JMICRON_ID: return "JMicron"; 918 case ATA_MARVELL_ID: return "Marvell"; 919 case ATA_MARVELL2_ID: return "Marvell"; 920 case ATA_NATIONAL_ID: return "National"; 921 case ATA_NETCELL_ID: return "Netcell"; 922 case ATA_NVIDIA_ID: return "nVidia"; 923 case ATA_PROMISE_ID: return "Promise"; 924 case ATA_SERVERWORKS_ID: return "ServerWorks"; 925 case ATA_SILICON_IMAGE_ID: return "SiI"; 926 case ATA_SIS_ID: return "SiS"; 927 case ATA_VIA_ID: return "VIA"; 928 case ATA_CENATEK_ID: return "Cenatek"; 929 case ATA_MICRON_ID: return "Micron"; 930 default: return "Generic"; 931 } 932 } 933 934 int 935 ata_mode2idx(int mode) 936 { 937 if ((mode & ATA_DMA_MASK) == ATA_UDMA0) 938 return (mode & ATA_MODE_MASK) + 8; 939 if ((mode & ATA_DMA_MASK) == ATA_WDMA0) 940 return (mode & ATA_MODE_MASK) + 5; 941 return (mode & ATA_MODE_MASK) - ATA_PIO0; 942 } 943