1 /*- 2 * Copyright (c) 1998 - 2008 S�ren Schmidt <sos@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include "opt_ata.h" 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/kernel.h> 34 #include <sys/module.h> 35 #include <sys/ata.h> 36 #include <sys/bus.h> 37 #include <sys/conf.h> 38 #include <sys/malloc.h> 39 #include <sys/sema.h> 40 #include <sys/taskqueue.h> 41 #include <vm/uma.h> 42 #include <machine/stdarg.h> 43 #include <machine/resource.h> 44 #include <machine/bus.h> 45 #include <sys/rman.h> 46 #include <dev/pci/pcivar.h> 47 #include <dev/pci/pcireg.h> 48 #include <dev/ata/ata-all.h> 49 #include <dev/ata/ata-pci.h> 50 #include <ata_if.h> 51 52 /* local vars */ 53 static MALLOC_DEFINE(M_ATAPCI, "ata_pci", "ATA driver PCI"); 54 55 /* misc defines */ 56 #define IOMASK 0xfffffffc 57 #define ATA_PROBE_OK -10 58 59 int 60 ata_legacy(device_t dev) 61 { 62 return (((pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV)&& 63 ((pci_read_config(dev, PCIR_PROGIF, 1) & 64 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) != 65 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))) || 66 (!pci_read_config(dev, PCIR_BAR(0), 4) && 67 !pci_read_config(dev, PCIR_BAR(1), 4) && 68 !pci_read_config(dev, PCIR_BAR(2), 4) && 69 !pci_read_config(dev, PCIR_BAR(3), 4) && 70 !pci_read_config(dev, PCIR_BAR(5), 4))); 71 } 72 73 int 74 ata_pci_probe(device_t dev) 75 { 76 if (pci_get_class(dev) != PCIC_STORAGE) 77 return ENXIO; 78 79 /* if this is an AHCI chipset grab it */ 80 if (pci_get_subclass(dev) == PCIS_STORAGE_SATA) { 81 if (!ata_ahci_ident(dev)) 82 return ATA_PROBE_OK; 83 } 84 85 /* run through the vendor specific drivers */ 86 switch (pci_get_vendor(dev)) { 87 case ATA_ACARD_ID: 88 if (!ata_acard_ident(dev)) 89 return ATA_PROBE_OK; 90 break; 91 case ATA_ACER_LABS_ID: 92 if (!ata_ali_ident(dev)) 93 return ATA_PROBE_OK; 94 break; 95 case ATA_AMD_ID: 96 if (!ata_amd_ident(dev)) 97 return ATA_PROBE_OK; 98 break; 99 case ATA_ADAPTEC_ID: 100 if (!ata_adaptec_ident(dev)) 101 return ATA_PROBE_OK; 102 break; 103 case ATA_ATI_ID: 104 if (!ata_ati_ident(dev)) 105 return ATA_PROBE_OK; 106 break; 107 case ATA_CYRIX_ID: 108 if (!ata_cyrix_ident(dev)) 109 return ATA_PROBE_OK; 110 break; 111 case ATA_CYPRESS_ID: 112 if (!ata_cypress_ident(dev)) 113 return ATA_PROBE_OK; 114 break; 115 case ATA_HIGHPOINT_ID: 116 if (!ata_highpoint_ident(dev)) 117 return ATA_PROBE_OK; 118 break; 119 case ATA_INTEL_ID: 120 if (!ata_intel_ident(dev)) 121 return ATA_PROBE_OK; 122 break; 123 case ATA_ITE_ID: 124 if (!ata_ite_ident(dev)) 125 return ATA_PROBE_OK; 126 break; 127 case ATA_JMICRON_ID: 128 if (!ata_jmicron_ident(dev)) 129 return ATA_PROBE_OK; 130 break; 131 case ATA_MARVELL_ID: 132 if (!ata_marvell_ident(dev)) 133 return ATA_PROBE_OK; 134 break; 135 case ATA_NATIONAL_ID: 136 if (!ata_national_ident(dev)) 137 return ATA_PROBE_OK; 138 break; 139 case ATA_NETCELL_ID: 140 if (!ata_netcell_ident(dev)) 141 return ATA_PROBE_OK; 142 break; 143 case ATA_NVIDIA_ID: 144 if (!ata_nvidia_ident(dev)) 145 return ATA_PROBE_OK; 146 break; 147 case ATA_PROMISE_ID: 148 if (!ata_promise_ident(dev)) 149 return ATA_PROBE_OK; 150 break; 151 case ATA_SERVERWORKS_ID: 152 if (!ata_serverworks_ident(dev)) 153 return ATA_PROBE_OK; 154 break; 155 case ATA_SILICON_IMAGE_ID: 156 if (!ata_sii_ident(dev)) 157 return ATA_PROBE_OK; 158 break; 159 case ATA_SIS_ID: 160 if (!ata_sis_ident(dev)) 161 return ATA_PROBE_OK; 162 break; 163 case ATA_VIA_ID: 164 if (!ata_via_ident(dev)) 165 return ATA_PROBE_OK; 166 break; 167 case ATA_CENATEK_ID: 168 if (pci_get_devid(dev) == ATA_CENATEK_ROCKET) { 169 ata_generic_ident(dev); 170 device_set_desc(dev, "Cenatek Rocket Drive controller"); 171 return ATA_PROBE_OK; 172 } 173 break; 174 case ATA_MICRON_ID: 175 if (pci_get_devid(dev) == ATA_MICRON_RZ1000 || 176 pci_get_devid(dev) == ATA_MICRON_RZ1001) { 177 ata_generic_ident(dev); 178 device_set_desc(dev, 179 "RZ 100? ATA controller !WARNING! data loss/corruption risk"); 180 return ATA_PROBE_OK; 181 } 182 break; 183 } 184 185 /* unknown chipset, try generic DMA if it seems possible */ 186 if (pci_get_subclass(dev) == PCIS_STORAGE_IDE) { 187 if (!ata_generic_ident(dev)) 188 return ATA_PROBE_OK; 189 } 190 return ENXIO; 191 } 192 193 int 194 ata_pci_attach(device_t dev) 195 { 196 struct ata_pci_controller *ctlr = device_get_softc(dev); 197 u_int32_t cmd; 198 int unit; 199 200 /* do chipset specific setups only needed once */ 201 if (ata_legacy(dev) || pci_read_config(dev, PCIR_BAR(2), 4) & IOMASK) 202 ctlr->channels = 2; 203 else 204 ctlr->channels = 1; 205 ctlr->allocate = ata_pci_allocate; 206 ctlr->dmainit = ata_pci_dmainit; 207 ctlr->dev = dev; 208 209 /* if needed try to enable busmastering */ 210 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 211 if (!(cmd & PCIM_CMD_BUSMASTEREN)) { 212 pci_write_config(dev, PCIR_COMMAND, cmd | PCIM_CMD_BUSMASTEREN, 2); 213 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 214 } 215 216 /* if busmastering mode "stuck" use it */ 217 if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) { 218 ctlr->r_type1 = SYS_RES_IOPORT; 219 ctlr->r_rid1 = ATA_BMADDR_RID; 220 ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1, &ctlr->r_rid1, 221 RF_ACTIVE); 222 } 223 224 if (ctlr->chipinit(dev)) 225 return ENXIO; 226 227 /* attach all channels on this controller */ 228 for (unit = 0; unit < ctlr->channels; unit++) { 229 if ((unit == 0 || unit == 1) && ata_legacy(dev)) { 230 device_add_child(dev, "ata", unit); 231 continue; 232 } 233 device_add_child(dev, "ata", devclass_find_free_unit(ata_devclass, 2)); 234 } 235 bus_generic_attach(dev); 236 return 0; 237 } 238 239 int 240 ata_pci_detach(device_t dev) 241 { 242 struct ata_pci_controller *ctlr = device_get_softc(dev); 243 device_t *children; 244 int nchildren, i; 245 246 /* detach & delete all children */ 247 if (!device_get_children(dev, &children, &nchildren)) { 248 for (i = 0; i < nchildren; i++) 249 device_delete_child(dev, children[i]); 250 free(children, M_TEMP); 251 } 252 253 if (ctlr->r_irq) { 254 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle); 255 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ctlr->r_irq); 256 } 257 if (ctlr->r_res2) 258 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2); 259 if (ctlr->r_res1) 260 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1); 261 262 return 0; 263 } 264 265 int 266 ata_pci_suspend(device_t dev) 267 { 268 struct ata_pci_controller *ctlr = device_get_softc(dev); 269 int error = 0; 270 271 bus_generic_suspend(dev); 272 if (ctlr->suspend) 273 error = ctlr->suspend(dev); 274 return error; 275 } 276 277 int 278 ata_pci_resume(device_t dev) 279 { 280 struct ata_pci_controller *ctlr = device_get_softc(dev); 281 int error = 0; 282 283 if (ctlr->resume) 284 error = ctlr->resume(dev); 285 bus_generic_resume(dev); 286 return error; 287 } 288 289 290 struct resource * 291 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, 292 u_long start, u_long end, u_long count, u_int flags) 293 { 294 struct ata_pci_controller *controller = device_get_softc(dev); 295 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 296 struct resource *res = NULL; 297 int myrid; 298 299 if (type == SYS_RES_IOPORT) { 300 switch (*rid) { 301 case ATA_IOADDR_RID: 302 if (ata_legacy(dev)) { 303 start = (unit ? ATA_SECONDARY : ATA_PRIMARY); 304 count = ATA_IOSIZE; 305 end = start + count - 1; 306 } 307 myrid = PCIR_BAR(0) + (unit << 3); 308 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 309 SYS_RES_IOPORT, &myrid, 310 start, end, count, flags); 311 break; 312 313 case ATA_CTLADDR_RID: 314 if (ata_legacy(dev)) { 315 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) + ATA_CTLOFFSET; 316 count = ATA_CTLIOSIZE; 317 end = start + count - 1; 318 } 319 myrid = PCIR_BAR(1) + (unit << 3); 320 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 321 SYS_RES_IOPORT, &myrid, 322 start, end, count, flags); 323 break; 324 } 325 } 326 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) { 327 if (ata_legacy(dev)) { 328 int irq = (unit == 0 ? 14 : 15); 329 330 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 331 SYS_RES_IRQ, rid, irq, irq, 1, flags); 332 } 333 else 334 res = controller->r_irq; 335 } 336 return res; 337 } 338 339 int 340 ata_pci_release_resource(device_t dev, device_t child, int type, int rid, 341 struct resource *r) 342 { 343 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 344 345 if (type == SYS_RES_IOPORT) { 346 switch (rid) { 347 case ATA_IOADDR_RID: 348 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 349 SYS_RES_IOPORT, 350 PCIR_BAR(0) + (unit << 3), r); 351 break; 352 353 case ATA_CTLADDR_RID: 354 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 355 SYS_RES_IOPORT, 356 PCIR_BAR(1) + (unit << 3), r); 357 break; 358 default: 359 return ENOENT; 360 } 361 } 362 if (type == SYS_RES_IRQ) { 363 if (rid != ATA_IRQ_RID) 364 return ENOENT; 365 366 if (ata_legacy(dev)) { 367 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 368 SYS_RES_IRQ, rid, r); 369 } 370 else 371 return 0; 372 } 373 return EINVAL; 374 } 375 376 int 377 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 378 int flags, driver_filter_t *filter, driver_intr_t *function, 379 void *argument, void **cookiep) 380 { 381 if (ata_legacy(dev)) { 382 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 383 flags, filter, function, argument, cookiep); 384 } 385 else { 386 struct ata_pci_controller *controller = device_get_softc(dev); 387 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 388 389 if (filter != NULL) { 390 printf("ata-pci.c: we cannot use a filter here\n"); 391 return (EINVAL); 392 } 393 controller->interrupt[unit].function = function; 394 controller->interrupt[unit].argument = argument; 395 *cookiep = controller; 396 return 0; 397 } 398 } 399 400 int 401 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 402 void *cookie) 403 { 404 if (ata_legacy(dev)) { 405 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 406 } 407 else { 408 struct ata_pci_controller *controller = device_get_softc(dev); 409 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 410 411 controller->interrupt[unit].function = NULL; 412 controller->interrupt[unit].argument = NULL; 413 return 0; 414 } 415 } 416 417 int 418 ata_pci_allocate(device_t dev) 419 { 420 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 421 struct ata_channel *ch = device_get_softc(dev); 422 struct resource *io = NULL, *ctlio = NULL; 423 int i, rid; 424 425 rid = ATA_IOADDR_RID; 426 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 427 return ENXIO; 428 429 rid = ATA_CTLADDR_RID; 430 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 431 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 432 return ENXIO; 433 } 434 435 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 436 ch->r_io[i].res = io; 437 ch->r_io[i].offset = i; 438 } 439 ch->r_io[ATA_CONTROL].res = ctlio; 440 ch->r_io[ATA_CONTROL].offset = ata_legacy(device_get_parent(dev)) ? 0 : 2; 441 ch->r_io[ATA_IDX_ADDR].res = io; 442 ata_default_registers(dev); 443 if (ctlr->r_res1) { 444 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 445 ch->r_io[i].res = ctlr->r_res1; 446 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE); 447 } 448 } 449 450 ata_pci_hw(dev); 451 return 0; 452 } 453 454 int 455 ata_pci_status(device_t dev) 456 { 457 struct ata_channel *ch = device_get_softc(dev); 458 459 if ((dumping || !ata_legacy(device_get_parent(dev))) && 460 ((ch->flags & ATA_ALWAYS_DMASTAT) || 461 (ch->dma.flags & ATA_DMA_ACTIVE))) { 462 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 463 464 if ((bmstat & (ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) != 465 ATA_BMSTAT_INTERRUPT) 466 return 0; 467 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 468 DELAY(1); 469 } 470 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 471 DELAY(100); 472 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 473 return 0; 474 } 475 return 1; 476 } 477 478 void 479 ata_pci_hw(device_t dev) 480 { 481 struct ata_channel *ch = device_get_softc(dev); 482 483 ata_generic_hw(dev); 484 ch->hw.status = ata_pci_status; 485 } 486 487 static int 488 ata_pci_dmastart(struct ata_request *request) 489 { 490 struct ata_channel *ch = device_get_softc(request->parent); 491 492 ATA_DEBUG_RQ(request, "dmastart"); 493 494 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 495 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 496 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, request->dma->sg_bus); 497 ch->dma.flags |= ATA_DMA_ACTIVE; 498 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 499 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) | 500 ((request->flags & ATA_R_READ) ? ATA_BMCMD_WRITE_READ : 0)| 501 ATA_BMCMD_START_STOP); 502 return 0; 503 } 504 505 static int 506 ata_pci_dmastop(struct ata_request *request) 507 { 508 struct ata_channel *ch = device_get_softc(request->parent); 509 int error; 510 511 ATA_DEBUG_RQ(request, "dmastop"); 512 513 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 514 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 515 ch->dma.flags &= ~ATA_DMA_ACTIVE; 516 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 517 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 518 return error; 519 } 520 521 static void 522 ata_pci_dmareset(device_t dev) 523 { 524 struct ata_channel *ch = device_get_softc(dev); 525 struct ata_request *request; 526 527 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 528 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 529 ch->dma.flags &= ~ATA_DMA_ACTIVE; 530 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 531 if ((request = ch->running)) { 532 device_printf(request->dev, "DMA reset calling unload\n"); 533 ch->dma.unload(request); 534 } 535 } 536 537 void 538 ata_pci_dmainit(device_t dev) 539 { 540 struct ata_channel *ch = device_get_softc(dev); 541 542 ata_dmainit(dev); 543 ch->dma.start = ata_pci_dmastart; 544 ch->dma.stop = ata_pci_dmastop; 545 ch->dma.reset = ata_pci_dmareset; 546 } 547 548 char * 549 ata_pcivendor2str(device_t dev) 550 { 551 switch (pci_get_vendor(dev)) { 552 case ATA_ACARD_ID: return "Acard"; 553 case ATA_ACER_LABS_ID: return "AcerLabs"; 554 case ATA_AMD_ID: return "AMD"; 555 case ATA_ADAPTEC_ID: return "Adaptec"; 556 case ATA_ATI_ID: return "ATI"; 557 case ATA_CYRIX_ID: return "Cyrix"; 558 case ATA_CYPRESS_ID: return "Cypress"; 559 case ATA_HIGHPOINT_ID: return "HighPoint"; 560 case ATA_INTEL_ID: return "Intel"; 561 case ATA_ITE_ID: return "ITE"; 562 case ATA_JMICRON_ID: return "JMicron"; 563 case ATA_MARVELL_ID: return "Marvell"; 564 case ATA_NATIONAL_ID: return "National"; 565 case ATA_NETCELL_ID: return "Netcell"; 566 case ATA_NVIDIA_ID: return "nVidia"; 567 case ATA_PROMISE_ID: return "Promise"; 568 case ATA_SERVERWORKS_ID: return "ServerWorks"; 569 case ATA_SILICON_IMAGE_ID: return "SiI"; 570 case ATA_SIS_ID: return "SiS"; 571 case ATA_VIA_ID: return "VIA"; 572 case ATA_CENATEK_ID: return "Cenatek"; 573 case ATA_MICRON_ID: return "Micron"; 574 default: return "Generic"; 575 } 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_alloc_resource, ata_pci_alloc_resource), 589 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 590 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 591 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 592 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 593 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 594 595 { 0, 0 } 596 }; 597 598 devclass_t atapci_devclass; 599 600 static driver_t ata_pci_driver = { 601 "atapci", 602 ata_pci_methods, 603 sizeof(struct ata_pci_controller), 604 }; 605 606 DRIVER_MODULE(atapci, pci, ata_pci_driver, atapci_devclass, 0, 0); 607 MODULE_VERSION(atapci, 1); 608 MODULE_DEPEND(atapci, ata, 1, 1, 1); 609 610 static int 611 ata_pcichannel_probe(device_t dev) 612 { 613 struct ata_channel *ch = device_get_softc(dev); 614 device_t *children; 615 int count, i; 616 char buffer[32]; 617 618 /* take care of green memory */ 619 bzero(ch, sizeof(struct ata_channel)); 620 621 /* find channel number on this controller */ 622 device_get_children(device_get_parent(dev), &children, &count); 623 for (i = 0; i < count; i++) { 624 if (children[i] == dev) 625 ch->unit = i; 626 } 627 free(children, M_TEMP); 628 629 sprintf(buffer, "ATA channel %d", ch->unit); 630 device_set_desc_copy(dev, buffer); 631 632 return ata_probe(dev); 633 } 634 635 static int 636 ata_pcichannel_attach(device_t dev) 637 { 638 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 639 int error; 640 641 if (ctlr->dmainit) 642 ctlr->dmainit(dev); 643 644 if ((error = ctlr->allocate(dev))) 645 return error; 646 647 return ata_attach(dev); 648 } 649 650 static int 651 ata_pcichannel_detach(device_t dev) 652 { 653 struct ata_channel *ch = device_get_softc(dev); 654 int error; 655 656 if ((error = ata_detach(dev))) 657 return error; 658 659 ch->dma.free(dev); 660 661 /* XXX SOS free resources for io and ctlio ?? */ 662 663 return 0; 664 } 665 666 static int 667 ata_pcichannel_locking(device_t dev, int mode) 668 { 669 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 670 struct ata_channel *ch = device_get_softc(dev); 671 672 if (ctlr->locking) 673 return ctlr->locking(dev, mode); 674 else 675 return ch->unit; 676 } 677 678 static void 679 ata_pcichannel_reset(device_t dev) 680 { 681 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 682 struct ata_channel *ch = device_get_softc(dev); 683 684 /* if DMA engine present reset it */ 685 if (ch->dma.reset) 686 ch->dma.reset(dev); 687 688 /* reset the controller HW */ 689 if (ctlr->reset) 690 ctlr->reset(dev); 691 else 692 ata_generic_reset(dev); 693 } 694 695 static void 696 ata_pcichannel_setmode(device_t parent, device_t dev) 697 { 698 struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev)); 699 struct ata_device *atadev = device_get_softc(dev); 700 int mode = atadev->mode; 701 702 ctlr->setmode(dev, ATA_PIO_MAX); 703 if (mode >= ATA_DMA) 704 ctlr->setmode(dev, mode); 705 } 706 707 static device_method_t ata_pcichannel_methods[] = { 708 /* device interface */ 709 DEVMETHOD(device_probe, ata_pcichannel_probe), 710 DEVMETHOD(device_attach, ata_pcichannel_attach), 711 DEVMETHOD(device_detach, ata_pcichannel_detach), 712 DEVMETHOD(device_shutdown, bus_generic_shutdown), 713 DEVMETHOD(device_suspend, ata_suspend), 714 DEVMETHOD(device_resume, ata_resume), 715 716 /* ATA methods */ 717 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 718 DEVMETHOD(ata_locking, ata_pcichannel_locking), 719 DEVMETHOD(ata_reset, ata_pcichannel_reset), 720 721 { 0, 0 } 722 }; 723 724 driver_t ata_pcichannel_driver = { 725 "ata", 726 ata_pcichannel_methods, 727 sizeof(struct ata_channel), 728 }; 729 730 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, 0, 0); 731