1 /*- 2 * Copyright (c) 1998 - 2007 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_ATI_ID: 100 if (!ata_ati_ident(dev)) 101 return ATA_PROBE_OK; 102 break; 103 case ATA_CYRIX_ID: 104 if (!ata_cyrix_ident(dev)) 105 return ATA_PROBE_OK; 106 break; 107 case ATA_CYPRESS_ID: 108 if (!ata_cypress_ident(dev)) 109 return ATA_PROBE_OK; 110 break; 111 case ATA_HIGHPOINT_ID: 112 if (!ata_highpoint_ident(dev)) 113 return ATA_PROBE_OK; 114 break; 115 case ATA_INTEL_ID: 116 if (!ata_intel_ident(dev)) 117 return ATA_PROBE_OK; 118 break; 119 case ATA_ITE_ID: 120 if (!ata_ite_ident(dev)) 121 return ATA_PROBE_OK; 122 break; 123 case ATA_JMICRON_ID: 124 if (!ata_jmicron_ident(dev)) 125 return ATA_PROBE_OK; 126 break; 127 case ATA_MARVELL_ID: 128 if (!ata_marvell_ident(dev)) 129 return ATA_PROBE_OK; 130 break; 131 case ATA_NATIONAL_ID: 132 if (!ata_national_ident(dev)) 133 return ATA_PROBE_OK; 134 break; 135 case ATA_NETCELL_ID: 136 if (!ata_netcell_ident(dev)) 137 return ATA_PROBE_OK; 138 break; 139 case ATA_NVIDIA_ID: 140 if (!ata_nvidia_ident(dev)) 141 return ATA_PROBE_OK; 142 break; 143 case ATA_PROMISE_ID: 144 if (!ata_promise_ident(dev)) 145 return ATA_PROBE_OK; 146 break; 147 case ATA_SERVERWORKS_ID: 148 if (!ata_serverworks_ident(dev)) 149 return ATA_PROBE_OK; 150 break; 151 case ATA_SILICON_IMAGE_ID: 152 if (!ata_sii_ident(dev)) 153 return ATA_PROBE_OK; 154 break; 155 case ATA_SIS_ID: 156 if (!ata_sis_ident(dev)) 157 return ATA_PROBE_OK; 158 break; 159 case ATA_VIA_ID: 160 if (!ata_via_ident(dev)) 161 return ATA_PROBE_OK; 162 break; 163 case ATA_CENATEK_ID: 164 if (pci_get_devid(dev) == ATA_CENATEK_ROCKET) { 165 ata_generic_ident(dev); 166 device_set_desc(dev, "Cenatek Rocket Drive controller"); 167 return ATA_PROBE_OK; 168 } 169 break; 170 case ATA_MICRON_ID: 171 if (pci_get_devid(dev) == ATA_MICRON_RZ1000 || 172 pci_get_devid(dev) == ATA_MICRON_RZ1001) { 173 ata_generic_ident(dev); 174 device_set_desc(dev, 175 "RZ 100? ATA controller !WARNING! data loss/corruption risk"); 176 return ATA_PROBE_OK; 177 } 178 break; 179 } 180 181 /* unknown chipset, try generic DMA if it seems possible */ 182 if (pci_get_subclass(dev) == PCIS_STORAGE_IDE) { 183 if (!ata_generic_ident(dev)) 184 return ATA_PROBE_OK; 185 } 186 return ENXIO; 187 } 188 189 int 190 ata_pci_attach(device_t dev) 191 { 192 struct ata_pci_controller *ctlr = device_get_softc(dev); 193 u_int32_t cmd; 194 int unit; 195 196 /* do chipset specific setups only needed once */ 197 if (ata_legacy(dev) || pci_read_config(dev, PCIR_BAR(2), 4) & IOMASK) 198 ctlr->channels = 2; 199 else 200 ctlr->channels = 1; 201 ctlr->allocate = ata_pci_allocate; 202 ctlr->dmainit = ata_pci_dmainit; 203 ctlr->dev = dev; 204 205 /* if needed try to enable busmastering */ 206 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 207 if (!(cmd & PCIM_CMD_BUSMASTEREN)) { 208 pci_write_config(dev, PCIR_COMMAND, cmd | PCIM_CMD_BUSMASTEREN, 2); 209 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 210 } 211 212 /* if busmastering mode "stuck" use it */ 213 if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) { 214 ctlr->r_type1 = SYS_RES_IOPORT; 215 ctlr->r_rid1 = ATA_BMADDR_RID; 216 ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1, &ctlr->r_rid1, 217 RF_ACTIVE); 218 } 219 220 if (ctlr->chipinit(dev)) 221 return ENXIO; 222 223 /* attach all channels on this controller */ 224 for (unit = 0; unit < ctlr->channels; unit++) { 225 if ((unit == 0 || unit == 1) && ata_legacy(dev)) { 226 device_add_child(dev, "ata", unit); 227 continue; 228 } 229 device_add_child(dev, "ata", devclass_find_free_unit(ata_devclass, 2)); 230 } 231 bus_generic_attach(dev); 232 return 0; 233 } 234 235 int 236 ata_pci_detach(device_t dev) 237 { 238 struct ata_pci_controller *ctlr = device_get_softc(dev); 239 device_t *children; 240 int nchildren, i; 241 242 /* detach & delete all children */ 243 if (!device_get_children(dev, &children, &nchildren)) { 244 for (i = 0; i < nchildren; i++) 245 device_delete_child(dev, children[i]); 246 free(children, M_TEMP); 247 } 248 249 if (ctlr->r_irq) { 250 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle); 251 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ctlr->r_irq); 252 } 253 if (ctlr->r_res2) 254 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2); 255 if (ctlr->r_res1) 256 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1); 257 258 return 0; 259 } 260 261 struct resource * 262 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, 263 u_long start, u_long end, u_long count, u_int flags) 264 { 265 struct ata_pci_controller *controller = device_get_softc(dev); 266 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 267 struct resource *res = NULL; 268 int myrid; 269 270 if (type == SYS_RES_IOPORT) { 271 switch (*rid) { 272 case ATA_IOADDR_RID: 273 if (ata_legacy(dev)) { 274 start = (unit ? ATA_SECONDARY : ATA_PRIMARY); 275 count = ATA_IOSIZE; 276 end = start + count - 1; 277 } 278 myrid = PCIR_BAR(0) + (unit << 3); 279 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 280 SYS_RES_IOPORT, &myrid, 281 start, end, count, flags); 282 break; 283 284 case ATA_CTLADDR_RID: 285 if (ata_legacy(dev)) { 286 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) + ATA_CTLOFFSET; 287 count = ATA_CTLIOSIZE; 288 end = start + count - 1; 289 } 290 myrid = PCIR_BAR(1) + (unit << 3); 291 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 292 SYS_RES_IOPORT, &myrid, 293 start, end, count, flags); 294 break; 295 } 296 } 297 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) { 298 if (ata_legacy(dev)) { 299 int irq = (unit == 0 ? 14 : 15); 300 301 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 302 SYS_RES_IRQ, rid, irq, irq, 1, flags); 303 } 304 else 305 res = controller->r_irq; 306 } 307 return res; 308 } 309 310 int 311 ata_pci_release_resource(device_t dev, device_t child, int type, int rid, 312 struct resource *r) 313 { 314 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 315 316 if (type == SYS_RES_IOPORT) { 317 switch (rid) { 318 case ATA_IOADDR_RID: 319 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 320 SYS_RES_IOPORT, 321 PCIR_BAR(0) + (unit << 3), r); 322 break; 323 324 case ATA_CTLADDR_RID: 325 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 326 SYS_RES_IOPORT, 327 PCIR_BAR(1) + (unit << 3), r); 328 break; 329 default: 330 return ENOENT; 331 } 332 } 333 if (type == SYS_RES_IRQ) { 334 if (rid != ATA_IRQ_RID) 335 return ENOENT; 336 337 if (ata_legacy(dev)) { 338 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 339 SYS_RES_IRQ, rid, r); 340 } 341 else 342 return 0; 343 } 344 return EINVAL; 345 } 346 347 int 348 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 349 int flags, driver_filter_t *filter, driver_intr_t *function, 350 void *argument, void **cookiep) 351 { 352 if (ata_legacy(dev)) { 353 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 354 flags, filter, function, argument, cookiep); 355 } 356 else { 357 struct ata_pci_controller *controller = device_get_softc(dev); 358 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 359 360 if (filter != NULL) { 361 printf("ata-pci.c: we cannot use a filter here\n"); 362 return (EINVAL); 363 } 364 controller->interrupt[unit].function = function; 365 controller->interrupt[unit].argument = argument; 366 *cookiep = controller; 367 return 0; 368 } 369 } 370 371 int 372 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 373 void *cookie) 374 { 375 if (ata_legacy(dev)) { 376 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 377 } 378 else { 379 struct ata_pci_controller *controller = device_get_softc(dev); 380 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 381 382 controller->interrupt[unit].function = NULL; 383 controller->interrupt[unit].argument = NULL; 384 return 0; 385 } 386 } 387 388 int 389 ata_pci_allocate(device_t dev) 390 { 391 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 392 struct ata_channel *ch = device_get_softc(dev); 393 struct resource *io = NULL, *ctlio = NULL; 394 int i, rid; 395 396 rid = ATA_IOADDR_RID; 397 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 398 return ENXIO; 399 400 rid = ATA_CTLADDR_RID; 401 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 402 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 403 return ENXIO; 404 } 405 406 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 407 ch->r_io[i].res = io; 408 ch->r_io[i].offset = i; 409 } 410 ch->r_io[ATA_CONTROL].res = ctlio; 411 ch->r_io[ATA_CONTROL].offset = ata_legacy(device_get_parent(dev)) ? 0 : 2; 412 ch->r_io[ATA_IDX_ADDR].res = io; 413 ata_default_registers(dev); 414 if (ctlr->r_res1) { 415 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 416 ch->r_io[i].res = ctlr->r_res1; 417 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE); 418 } 419 } 420 421 ata_pci_hw(dev); 422 return 0; 423 } 424 425 void 426 ata_pci_hw(device_t dev) 427 { 428 struct ata_channel *ch = device_get_softc(dev); 429 430 ata_generic_hw(dev); 431 ch->hw.status = ata_pci_status; 432 } 433 434 int 435 ata_pci_status(device_t dev) 436 { 437 struct ata_channel *ch = device_get_softc(dev); 438 439 if ((dumping || !ata_legacy(device_get_parent(dev))) && 440 ch->dma && ((ch->flags & ATA_ALWAYS_DMASTAT) || 441 (ch->dma->flags & ATA_DMA_ACTIVE))) { 442 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 443 444 if ((bmstat & (ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) != 445 ATA_BMSTAT_INTERRUPT) 446 return 0; 447 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 448 DELAY(1); 449 } 450 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 451 DELAY(100); 452 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 453 return 0; 454 } 455 return 1; 456 } 457 458 static int 459 ata_pci_dmastart(device_t dev) 460 { 461 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 462 463 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 464 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 465 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, ch->dma->sg_bus); 466 ch->dma->flags |= ATA_DMA_ACTIVE; 467 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 468 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) | 469 ((ch->dma->flags & ATA_DMA_READ) ? ATA_BMCMD_WRITE_READ : 0) | 470 ATA_BMCMD_START_STOP); 471 return 0; 472 } 473 474 static int 475 ata_pci_dmastop(device_t dev) 476 { 477 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 478 int error; 479 480 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 481 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 482 ch->dma->flags &= ~ATA_DMA_ACTIVE; 483 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 484 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 485 return error; 486 } 487 488 static void 489 ata_pci_dmareset(device_t dev) 490 { 491 struct ata_channel *ch = device_get_softc(dev); 492 493 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 494 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 495 ch->dma->flags &= ~ATA_DMA_ACTIVE; 496 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 497 ch->dma->unload(dev); 498 } 499 500 void 501 ata_pci_dmainit(device_t dev) 502 { 503 struct ata_channel *ch = device_get_softc(dev); 504 505 ata_dmainit(dev); 506 if (ch->dma) { 507 ch->dma->start = ata_pci_dmastart; 508 ch->dma->stop = ata_pci_dmastop; 509 ch->dma->reset = ata_pci_dmareset; 510 } 511 } 512 513 char * 514 ata_pcivendor2str(device_t dev) 515 { 516 switch (pci_get_vendor(dev)) { 517 case ATA_ACARD_ID: return "Acard"; 518 case ATA_ACER_LABS_ID: return "AcerLabs"; 519 case ATA_AMD_ID: return "AMD"; 520 case ATA_ATI_ID: return "ATI"; 521 case ATA_CYRIX_ID: return "Cyrix"; 522 case ATA_CYPRESS_ID: return "Cypress"; 523 case ATA_HIGHPOINT_ID: return "HighPoint"; 524 case ATA_INTEL_ID: return "Intel"; 525 case ATA_ITE_ID: return "ITE"; 526 case ATA_JMICRON_ID: return "JMicron"; 527 case ATA_MARVELL_ID: return "Marvell"; 528 case ATA_NATIONAL_ID: return "National"; 529 case ATA_NETCELL_ID: return "Netcell"; 530 case ATA_NVIDIA_ID: return "nVidia"; 531 case ATA_PROMISE_ID: return "Promise"; 532 case ATA_SERVERWORKS_ID: return "ServerWorks"; 533 case ATA_SILICON_IMAGE_ID: return "SiI"; 534 case ATA_SIS_ID: return "SiS"; 535 case ATA_VIA_ID: return "VIA"; 536 case ATA_CENATEK_ID: return "Cenatek"; 537 case ATA_MICRON_ID: return "Micron"; 538 default: return "Generic"; 539 } 540 } 541 542 static device_method_t ata_pci_methods[] = { 543 /* device interface */ 544 DEVMETHOD(device_probe, ata_pci_probe), 545 DEVMETHOD(device_attach, ata_pci_attach), 546 DEVMETHOD(device_detach, ata_pci_detach), 547 DEVMETHOD(device_shutdown, bus_generic_shutdown), 548 DEVMETHOD(device_suspend, bus_generic_suspend), 549 DEVMETHOD(device_resume, bus_generic_resume), 550 551 /* bus methods */ 552 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource), 553 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 554 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 555 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 556 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 557 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 558 559 { 0, 0 } 560 }; 561 562 devclass_t atapci_devclass; 563 564 static driver_t ata_pci_driver = { 565 "atapci", 566 ata_pci_methods, 567 sizeof(struct ata_pci_controller), 568 }; 569 570 DRIVER_MODULE(atapci, pci, ata_pci_driver, atapci_devclass, 0, 0); 571 MODULE_VERSION(atapci, 1); 572 MODULE_DEPEND(atapci, ata, 1, 1, 1); 573 574 static int 575 ata_pcichannel_probe(device_t dev) 576 { 577 struct ata_channel *ch = device_get_softc(dev); 578 device_t *children; 579 int count, i; 580 char buffer[32]; 581 582 /* take care of green memory */ 583 bzero(ch, sizeof(struct ata_channel)); 584 585 /* find channel number on this controller */ 586 device_get_children(device_get_parent(dev), &children, &count); 587 for (i = 0; i < count; i++) { 588 if (children[i] == dev) 589 ch->unit = i; 590 } 591 free(children, M_TEMP); 592 593 sprintf(buffer, "ATA channel %d", ch->unit); 594 device_set_desc_copy(dev, buffer); 595 596 return ata_probe(dev); 597 } 598 599 static int 600 ata_pcichannel_attach(device_t dev) 601 { 602 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 603 struct ata_channel *ch = device_get_softc(dev); 604 int error; 605 606 if (ctlr->dmainit) 607 ctlr->dmainit(dev); 608 if (ch->dma) 609 ch->dma->alloc(dev); 610 611 if ((error = ctlr->allocate(dev))) { 612 if (ch->dma) 613 ch->dma->free(dev); 614 return error; 615 } 616 617 return ata_attach(dev); 618 } 619 620 static int 621 ata_pcichannel_detach(device_t dev) 622 { 623 struct ata_channel *ch = device_get_softc(dev); 624 int error; 625 626 if ((error = ata_detach(dev))) 627 return error; 628 629 if (ch->dma) 630 ch->dma->free(dev); 631 632 /* XXX SOS free resources for io and ctlio ?? */ 633 634 return 0; 635 } 636 637 static int 638 ata_pcichannel_locking(device_t dev, int mode) 639 { 640 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 641 struct ata_channel *ch = device_get_softc(dev); 642 643 if (ctlr->locking) 644 return ctlr->locking(dev, mode); 645 else 646 return ch->unit; 647 } 648 649 static void 650 ata_pcichannel_reset(device_t dev) 651 { 652 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 653 struct ata_channel *ch = device_get_softc(dev); 654 655 /* if DMA engine present reset it */ 656 if (ch->dma) { 657 if (ch->dma->reset) 658 ch->dma->reset(dev); 659 ch->dma->unload(dev); 660 } 661 662 /* reset the controller HW */ 663 if (ctlr->reset) 664 ctlr->reset(dev); 665 else 666 ata_generic_reset(dev); 667 } 668 669 static void 670 ata_pcichannel_setmode(device_t parent, device_t dev) 671 { 672 struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev)); 673 struct ata_device *atadev = device_get_softc(dev); 674 int mode = atadev->mode; 675 676 ctlr->setmode(dev, ATA_PIO_MAX); 677 if (mode >= ATA_DMA) 678 ctlr->setmode(dev, mode); 679 } 680 681 static device_method_t ata_pcichannel_methods[] = { 682 /* device interface */ 683 DEVMETHOD(device_probe, ata_pcichannel_probe), 684 DEVMETHOD(device_attach, ata_pcichannel_attach), 685 DEVMETHOD(device_detach, ata_pcichannel_detach), 686 DEVMETHOD(device_shutdown, bus_generic_shutdown), 687 DEVMETHOD(device_suspend, ata_suspend), 688 DEVMETHOD(device_resume, ata_resume), 689 690 /* ATA methods */ 691 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 692 DEVMETHOD(ata_locking, ata_pcichannel_locking), 693 DEVMETHOD(ata_reset, ata_pcichannel_reset), 694 695 { 0, 0 } 696 }; 697 698 driver_t ata_pcichannel_driver = { 699 "ata", 700 ata_pcichannel_methods, 701 sizeof(struct ata_channel), 702 }; 703 704 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, 0, 0); 705