1 /*- 2 * Copyright (c) 1998 - 2006 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 * $FreeBSD: src/sys/dev/ata/ata-pci.c,v 1.117 2006/05/12 05:04:40 jhb Exp $ 27 * $DragonFly: src/sys/dev/disk/nata/ata-pci.c,v 1.2 2006/12/20 18:14:38 dillon Exp $ 28 */ 29 30 #include "opt_ata.h" 31 32 #include <sys/param.h> 33 #include <sys/bus.h> 34 #include <sys/bus_resource.h> 35 #include <sys/malloc.h> 36 #include <sys/module.h> 37 #include <sys/nata.h> 38 #include <sys/rman.h> 39 #include <sys/systm.h> 40 41 #include <bus/pci/pcireg.h> 42 #include <bus/pci/pcivar.h> 43 44 #include "ata-all.h" 45 #include "ata-pci.h" 46 #include "ata_if.h" 47 48 /* local vars */ 49 static MALLOC_DEFINE(M_ATAPCI, "ata_pci", "ATA driver PCI"); 50 51 /* misc defines */ 52 #define IOMASK 0xfffffffc 53 #define ATA_PROBE_OK -10 54 55 int 56 ata_legacy(device_t dev) 57 { 58 return ((pci_read_config(dev, PCIR_PROGIF, 1)&PCIP_STORAGE_IDE_MASTERDEV) && 59 ((pci_read_config(dev, PCIR_PROGIF, 1) & 60 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC)) != 61 (PCIP_STORAGE_IDE_MODEPRIM | PCIP_STORAGE_IDE_MODESEC))); 62 } 63 64 int 65 ata_pci_probe(device_t dev) 66 { 67 if (pci_get_class(dev) != PCIC_STORAGE) 68 return ENXIO; 69 70 switch (pci_get_vendor(dev)) { 71 case ATA_ACARD_ID: 72 if (!ata_acard_ident(dev)) 73 return ATA_PROBE_OK; 74 break; 75 case ATA_ACER_LABS_ID: 76 if (!ata_ali_ident(dev)) 77 return ATA_PROBE_OK; 78 break; 79 case ATA_AMD_ID: 80 if (!ata_amd_ident(dev)) 81 return ATA_PROBE_OK; 82 break; 83 case ATA_ATI_ID: 84 if (!ata_ati_ident(dev)) 85 return ATA_PROBE_OK; 86 break; 87 case ATA_CYRIX_ID: 88 if (!ata_cyrix_ident(dev)) 89 return ATA_PROBE_OK; 90 break; 91 case ATA_CYPRESS_ID: 92 if (!ata_cypress_ident(dev)) 93 return ATA_PROBE_OK; 94 break; 95 case ATA_HIGHPOINT_ID: 96 if (!ata_highpoint_ident(dev)) 97 return ATA_PROBE_OK; 98 break; 99 case ATA_INTEL_ID: 100 if (!ata_intel_ident(dev)) 101 return ATA_PROBE_OK; 102 break; 103 case ATA_ITE_ID: 104 if (!ata_ite_ident(dev)) 105 return ATA_PROBE_OK; 106 break; 107 case ATA_JMICRON_ID: 108 if (!ata_jmicron_ident(dev)) 109 return ATA_PROBE_OK; 110 break; 111 case ATA_MARVELL_ID: 112 if (!ata_marvell_ident(dev)) 113 return ATA_PROBE_OK; 114 break; 115 case ATA_NATIONAL_ID: 116 if (!ata_national_ident(dev)) 117 return ATA_PROBE_OK; 118 break; 119 case ATA_NVIDIA_ID: 120 if (!ata_nvidia_ident(dev)) 121 return ATA_PROBE_OK; 122 break; 123 case ATA_PROMISE_ID: 124 if (!ata_promise_ident(dev)) 125 return ATA_PROBE_OK; 126 break; 127 case ATA_SERVERWORKS_ID: 128 if (!ata_serverworks_ident(dev)) 129 return ATA_PROBE_OK; 130 break; 131 case ATA_SILICON_IMAGE_ID: 132 if (!ata_sii_ident(dev)) 133 return ATA_PROBE_OK; 134 break; 135 case ATA_SIS_ID: 136 if (!ata_sis_ident(dev)) 137 return ATA_PROBE_OK; 138 break; 139 case ATA_VIA_ID: 140 if (!ata_via_ident(dev)) 141 return ATA_PROBE_OK; 142 break; 143 case ATA_CENATEK_ID: 144 if (pci_get_devid(dev) == ATA_CENATEK_ROCKET) { 145 ata_generic_ident(dev); 146 device_set_desc(dev, "Cenatek Rocket Drive controller"); 147 return ATA_PROBE_OK; 148 } 149 break; 150 case ATA_MICRON_ID: 151 if (pci_get_devid(dev) == ATA_MICRON_RZ1000 || 152 pci_get_devid(dev) == ATA_MICRON_RZ1001) { 153 ata_generic_ident(dev); 154 device_set_desc(dev, 155 "RZ 100? ATA controller !WARNING! data loss/corruption risk"); 156 return ATA_PROBE_OK; 157 } 158 break; 159 } 160 161 /* unknown chipset, try generic DMA if it seems possible */ 162 if ((pci_get_class(dev) == PCIC_STORAGE) && 163 (pci_get_subclass(dev) == PCIS_STORAGE_IDE)) { 164 if (!ata_generic_ident(dev)) 165 return ATA_PROBE_OK; 166 } 167 return ENXIO; 168 } 169 170 int 171 ata_pci_attach(device_t dev) 172 { 173 struct ata_pci_controller *ctlr = device_get_softc(dev); 174 u_int32_t cmd; 175 int unit; 176 177 /* do chipset specific setups only needed once */ 178 if (ata_legacy(dev) || pci_read_config(dev, PCIR_BAR(2), 4) & IOMASK) 179 ctlr->channels = 2; 180 else 181 ctlr->channels = 1; 182 ctlr->allocate = ata_pci_allocate; 183 ctlr->deallocate = ata_pci_deallocate; 184 ctlr->dmainit = ata_pci_dmainit; 185 ctlr->dmauninit = ata_pci_dmauninit; 186 ctlr->dev = dev; 187 188 /* if needed try to enable busmastering */ 189 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 190 if (!(cmd & PCIM_CMD_BUSMASTEREN)) { 191 pci_write_config(dev, PCIR_COMMAND, cmd | PCIM_CMD_BUSMASTEREN, 2); 192 cmd = pci_read_config(dev, PCIR_COMMAND, 2); 193 } 194 195 /* if busmastering mode "stuck" use it */ 196 if ((cmd & PCIM_CMD_BUSMASTEREN) == PCIM_CMD_BUSMASTEREN) { 197 ctlr->r_type1 = SYS_RES_IOPORT; 198 ctlr->r_rid1 = ATA_BMADDR_RID; 199 ctlr->r_res1 = bus_alloc_resource_any(dev, ctlr->r_type1, &ctlr->r_rid1, 200 RF_ACTIVE); 201 } 202 203 if (ctlr->chipinit(dev)) 204 return ENXIO; 205 206 /* attach all channels on this controller */ 207 for (unit = 0; unit < ctlr->channels; unit++) { 208 int freeunit = 2; 209 if (unit == 0 && (pci_get_progif(dev) & 0x81) == 0x80) { 210 device_add_child(dev, "ata", unit); 211 continue; 212 } 213 if (unit == 1 && (pci_get_progif(dev) & 0x84) == 0x80) { 214 device_add_child(dev, "ata", unit); 215 continue; 216 } 217 /* XXX TGEN devclass_find_free_unit() implementation */ 218 while (freeunit < devclass_get_maxunit(ata_devclass) && 219 devclass_get_device(ata_devclass, freeunit) != NULL) 220 freeunit++; 221 device_add_child(dev, "ata", freeunit); 222 } 223 bus_generic_attach(dev); 224 return 0; 225 } 226 227 int 228 ata_pci_detach(device_t dev) 229 { 230 struct ata_pci_controller *ctlr = device_get_softc(dev); 231 device_t *children; 232 int nchildren, i; 233 234 /* detach & delete all children */ 235 if (!device_get_children(dev, &children, &nchildren)) { 236 for (i = 0; i < nchildren; i++) 237 device_delete_child(dev, children[i]); 238 kfree(children, M_TEMP); 239 } 240 241 if (ctlr->r_irq) { 242 bus_teardown_intr(dev, ctlr->r_irq, ctlr->handle); 243 bus_release_resource(dev, SYS_RES_IRQ, ATA_IRQ_RID, ctlr->r_irq); 244 } 245 if (ctlr->r_res2) 246 bus_release_resource(dev, ctlr->r_type2, ctlr->r_rid2, ctlr->r_res2); 247 if (ctlr->r_res1) 248 bus_release_resource(dev, ctlr->r_type1, ctlr->r_rid1, ctlr->r_res1); 249 250 return 0; 251 } 252 253 struct resource * 254 ata_pci_alloc_resource(device_t dev, device_t child, int type, int *rid, 255 u_long start, u_long end, u_long count, u_int flags) 256 { 257 struct ata_pci_controller *controller = device_get_softc(dev); 258 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 259 struct resource *res = NULL; 260 int myrid; 261 262 if (type == SYS_RES_IOPORT) { 263 switch (*rid) { 264 case ATA_IOADDR_RID: 265 if (ata_legacy(dev)) { 266 start = (unit ? ATA_SECONDARY : ATA_PRIMARY); 267 count = ATA_IOSIZE; 268 end = start + count - 1; 269 } 270 myrid = PCIR_BAR(0) + (unit << 3); 271 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 272 SYS_RES_IOPORT, &myrid, 273 start, end, count, flags); 274 break; 275 276 case ATA_CTLADDR_RID: 277 if (ata_legacy(dev)) { 278 start = (unit ? ATA_SECONDARY : ATA_PRIMARY) + ATA_CTLOFFSET; 279 count = ATA_CTLIOSIZE; 280 end = start + count - 1; 281 } 282 myrid = PCIR_BAR(1) + (unit << 3); 283 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), dev, 284 SYS_RES_IOPORT, &myrid, 285 start, end, count, flags); 286 break; 287 } 288 } 289 if (type == SYS_RES_IRQ && *rid == ATA_IRQ_RID) { 290 if (ata_legacy(dev)) { 291 int irq = (unit == 0 ? 14 : 15); 292 293 res = BUS_ALLOC_RESOURCE(device_get_parent(dev), child, 294 SYS_RES_IRQ, rid, irq, irq, 1, flags); 295 } 296 else 297 res = controller->r_irq; 298 } 299 return res; 300 } 301 302 int 303 ata_pci_release_resource(device_t dev, device_t child, int type, int rid, 304 struct resource *r) 305 { 306 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 307 308 if (type == SYS_RES_IOPORT) { 309 switch (rid) { 310 case ATA_IOADDR_RID: 311 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 312 SYS_RES_IOPORT, 313 PCIR_BAR(0) + (unit << 3), r); 314 break; 315 316 case ATA_CTLADDR_RID: 317 return BUS_RELEASE_RESOURCE(device_get_parent(dev), dev, 318 SYS_RES_IOPORT, 319 PCIR_BAR(1) + (unit << 3), r); 320 break; 321 default: 322 return ENOENT; 323 } 324 } 325 if (type == SYS_RES_IRQ) { 326 if (rid != ATA_IRQ_RID) 327 return ENOENT; 328 329 if (ata_legacy(dev)) { 330 return BUS_RELEASE_RESOURCE(device_get_parent(dev), child, 331 SYS_RES_IRQ, rid, r); 332 } 333 else 334 return 0; 335 } 336 return EINVAL; 337 } 338 339 int 340 ata_pci_setup_intr(device_t dev, device_t child, struct resource *irq, 341 int flags, driver_intr_t *function, void *argument, 342 void **cookiep) 343 { 344 if (ata_legacy(dev)) { 345 return BUS_SETUP_INTR(device_get_parent(dev), child, irq, 346 flags, function, argument, cookiep, NULL); 347 } 348 else { 349 struct ata_pci_controller *controller = device_get_softc(dev); 350 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 351 352 controller->interrupt[unit].function = function; 353 controller->interrupt[unit].argument = argument; 354 *cookiep = controller; 355 return 0; 356 } 357 } 358 359 int 360 ata_pci_teardown_intr(device_t dev, device_t child, struct resource *irq, 361 void *cookie) 362 { 363 if (ata_legacy(dev)) { 364 return BUS_TEARDOWN_INTR(device_get_parent(dev), child, irq, cookie); 365 } 366 else { 367 struct ata_pci_controller *controller = device_get_softc(dev); 368 int unit = ((struct ata_channel *)device_get_softc(child))->unit; 369 370 controller->interrupt[unit].function = NULL; 371 controller->interrupt[unit].argument = NULL; 372 return 0; 373 } 374 } 375 376 int 377 ata_pci_allocate(device_t dev) 378 { 379 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 380 struct ata_channel *ch = device_get_softc(dev); 381 struct resource *io = NULL, *ctlio = NULL; 382 int i, rid; 383 384 rid = ATA_IOADDR_RID; 385 if (!(io = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE))) 386 return ENXIO; 387 388 rid = ATA_CTLADDR_RID; 389 if (!(ctlio = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid,RF_ACTIVE))){ 390 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, io); 391 return ENXIO; 392 } 393 394 for (i = ATA_DATA; i <= ATA_COMMAND; i ++) { 395 ch->r_io[i].res = io; 396 ch->r_io[i].offset = i; 397 } 398 ch->r_io[ATA_CONTROL].res = ctlio; 399 ch->r_io[ATA_CONTROL].offset = ata_legacy(device_get_parent(dev)) ? 0 : 2; 400 ch->r_io[ATA_IDX_ADDR].res = io; 401 ata_default_registers(dev); 402 if (ctlr->r_res1) { 403 for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) { 404 ch->r_io[i].res = ctlr->r_res1; 405 ch->r_io[i].offset = (i - ATA_BMCMD_PORT) + (ch->unit*ATA_BMIOSIZE); 406 } 407 } 408 409 ata_pci_hw(dev); 410 return 0; 411 } 412 413 /* 414 * Deallocate resources that have been allocated for the ATA channel. 415 */ 416 int 417 ata_pci_deallocate(device_t dev) 418 { 419 struct ata_channel *ch = device_get_softc(dev); 420 421 if (ch->r_io[ATA_CONTROL].res) 422 bus_release_resource(dev, SYS_RES_IOPORT, ATA_CTLADDR_RID, 423 ch->r_io[ATA_CONTROL].res); 424 if (ch->r_io[ATA_IDX_ADDR].res) 425 bus_release_resource(dev, SYS_RES_IOPORT, ATA_IOADDR_RID, 426 ch->r_io[ATA_IDX_ADDR].res); 427 428 return 0; 429 } 430 431 void 432 ata_pci_hw(device_t dev) 433 { 434 struct ata_channel *ch = device_get_softc(dev); 435 436 ata_generic_hw(dev); 437 ch->hw.status = ata_pci_status; 438 } 439 440 int 441 ata_pci_status(device_t dev) 442 { 443 struct ata_channel *ch = device_get_softc(dev); 444 445 if ((dumping || !ata_legacy(device_get_parent(dev))) && 446 ch->dma && ((ch->flags & ATA_ALWAYS_DMASTAT) || 447 (ch->dma->flags & ATA_DMA_ACTIVE))) { 448 int bmstat = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 449 450 if ((bmstat & (ATA_BMSTAT_ACTIVE | ATA_BMSTAT_INTERRUPT)) != 451 ATA_BMSTAT_INTERRUPT) 452 return 0; 453 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, bmstat & ~ATA_BMSTAT_ERROR); 454 DELAY(1); 455 } 456 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) { 457 DELAY(100); 458 if (ATA_IDX_INB(ch, ATA_ALTSTAT) & ATA_S_BUSY) 459 return 0; 460 } 461 return 1; 462 } 463 464 static int 465 ata_pci_dmastart(device_t dev) 466 { 467 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 468 469 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, (ATA_IDX_INB(ch, ATA_BMSTAT_PORT) | 470 (ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR))); 471 ATA_IDX_OUTL(ch, ATA_BMDTP_PORT, ch->dma->sg_bus); 472 ch->dma->flags |= ATA_DMA_ACTIVE; 473 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 474 (ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_WRITE_READ) | 475 ((ch->dma->flags & ATA_DMA_READ) ? ATA_BMCMD_WRITE_READ : 0) | 476 ATA_BMCMD_START_STOP); 477 return 0; 478 } 479 480 static int 481 ata_pci_dmastop(device_t dev) 482 { 483 struct ata_channel *ch = device_get_softc(device_get_parent(dev)); 484 int error; 485 486 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 487 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 488 ch->dma->flags &= ~ATA_DMA_ACTIVE; 489 error = ATA_IDX_INB(ch, ATA_BMSTAT_PORT) & ATA_BMSTAT_MASK; 490 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 491 return error; 492 } 493 494 static void 495 ata_pci_dmareset(device_t dev) 496 { 497 struct ata_channel *ch = device_get_softc(dev); 498 499 ATA_IDX_OUTB(ch, ATA_BMCMD_PORT, 500 ATA_IDX_INB(ch, ATA_BMCMD_PORT) & ~ATA_BMCMD_START_STOP); 501 ch->dma->flags &= ~ATA_DMA_ACTIVE; 502 ATA_IDX_OUTB(ch, ATA_BMSTAT_PORT, ATA_BMSTAT_INTERRUPT | ATA_BMSTAT_ERROR); 503 ch->dma->unload(dev); 504 } 505 506 void 507 ata_pci_dmainit(device_t dev) 508 { 509 struct ata_channel *ch = device_get_softc(dev); 510 511 ata_dmainit(dev); 512 if (ch->dma) { 513 ch->dma->start = ata_pci_dmastart; 514 ch->dma->stop = ata_pci_dmastop; 515 ch->dma->reset = ata_pci_dmareset; 516 } 517 } 518 519 void 520 ata_pci_dmauninit(device_t dev) 521 { 522 ata_dmauninit(dev); 523 } 524 525 static device_method_t ata_pci_methods[] = { 526 /* device interface */ 527 DEVMETHOD(device_probe, ata_pci_probe), 528 DEVMETHOD(device_attach, ata_pci_attach), 529 DEVMETHOD(device_detach, ata_pci_detach), 530 DEVMETHOD(device_shutdown, bus_generic_shutdown), 531 DEVMETHOD(device_suspend, bus_generic_suspend), 532 DEVMETHOD(device_resume, bus_generic_resume), 533 534 /* bus methods */ 535 DEVMETHOD(bus_alloc_resource, ata_pci_alloc_resource), 536 DEVMETHOD(bus_release_resource, ata_pci_release_resource), 537 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 538 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 539 DEVMETHOD(bus_setup_intr, ata_pci_setup_intr), 540 DEVMETHOD(bus_teardown_intr, ata_pci_teardown_intr), 541 542 { 0, 0 } 543 }; 544 545 devclass_t atapci_devclass; 546 547 static driver_t ata_pci_driver = { 548 "atapci", 549 ata_pci_methods, 550 sizeof(struct ata_pci_controller), 551 }; 552 553 DRIVER_MODULE(atapci, pci, ata_pci_driver, atapci_devclass, 0, 0); 554 MODULE_VERSION(atapci, 1); 555 MODULE_DEPEND(atapci, ata, 1, 1, 1); 556 557 static int 558 ata_pcichannel_probe(device_t dev) 559 { 560 struct ata_channel *ch = device_get_softc(dev); 561 device_t *children; 562 int count, i; 563 char buffer[32]; 564 565 /* take care of green memory */ 566 bzero(ch, sizeof(struct ata_channel)); 567 568 /* find channel number on this controller */ 569 device_get_children(device_get_parent(dev), &children, &count); 570 for (i = 0; i < count; i++) { 571 if (children[i] == dev) 572 ch->unit = i; 573 } 574 kfree(children, M_TEMP); 575 576 ksprintf(buffer, "ATA channel %d", ch->unit); 577 device_set_desc_copy(dev, buffer); 578 579 return ata_probe(dev); 580 } 581 582 static int 583 ata_pcichannel_attach(device_t dev) 584 { 585 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 586 struct ata_channel *ch = device_get_softc(dev); 587 int error; 588 589 if (ctlr->dmainit) 590 ctlr->dmainit(dev); 591 if (ch->dma) 592 ch->dma->alloc(dev); 593 594 if ((error = ctlr->allocate(dev))) 595 return error; 596 597 return ata_attach(dev); 598 } 599 600 static int 601 ata_pcichannel_detach(device_t dev) 602 { 603 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 604 struct ata_channel *ch = device_get_softc(dev); 605 int error; 606 607 if ((error = ata_detach(dev))) 608 return error; 609 610 if (ch->dma) 611 ch->dma->free(dev); 612 if (ctlr->dmauninit) 613 ctlr->dmauninit(dev); 614 615 if ((error = ctlr->deallocate(dev))) 616 return error; 617 618 return 0; 619 } 620 621 static int 622 ata_pcichannel_locking(device_t dev, int mode) 623 { 624 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 625 struct ata_channel *ch = device_get_softc(dev); 626 627 if (ctlr->locking) 628 return ctlr->locking(dev, mode); 629 else 630 return ch->unit; 631 } 632 633 static void 634 ata_pcichannel_reset(device_t dev) 635 { 636 struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev)); 637 struct ata_channel *ch = device_get_softc(dev); 638 639 /* if DMA engine present reset it */ 640 if (ch->dma) { 641 if (ch->dma->reset) 642 ch->dma->reset(dev); 643 ch->dma->unload(dev); 644 } 645 646 /* reset the controller HW */ 647 if (ctlr->reset) 648 ctlr->reset(dev); 649 else 650 ata_generic_reset(dev); 651 } 652 653 static void 654 ata_pcichannel_setmode(device_t parent, device_t dev) 655 { 656 struct ata_pci_controller *ctlr = device_get_softc(GRANDPARENT(dev)); 657 struct ata_device *atadev = device_get_softc(dev); 658 int mode = atadev->mode; 659 660 ctlr->setmode(dev, ATA_PIO_MAX); 661 if (mode >= ATA_DMA) 662 ctlr->setmode(dev, mode); 663 } 664 665 static device_method_t ata_pcichannel_methods[] = { 666 /* device interface */ 667 DEVMETHOD(device_probe, ata_pcichannel_probe), 668 DEVMETHOD(device_attach, ata_pcichannel_attach), 669 DEVMETHOD(device_detach, ata_pcichannel_detach), 670 DEVMETHOD(device_shutdown, bus_generic_shutdown), 671 DEVMETHOD(device_suspend, ata_suspend), 672 DEVMETHOD(device_resume, ata_resume), 673 674 /* ATA methods */ 675 DEVMETHOD(ata_setmode, ata_pcichannel_setmode), 676 DEVMETHOD(ata_locking, ata_pcichannel_locking), 677 DEVMETHOD(ata_reset, ata_pcichannel_reset), 678 679 { 0, 0 } 680 }; 681 682 driver_t ata_pcichannel_driver = { 683 "ata", 684 ata_pcichannel_methods, 685 sizeof(struct ata_channel), 686 }; 687 688 DRIVER_MODULE(ata, atapci, ata_pcichannel_driver, ata_devclass, 0, 0); 689