sys/bus/firewire/fwohci_pci.c

   1 /*
   2  * Copyright (c) 2003 Hidetoshi Shimokawa
   3  * Copyright (c) 1998-2002 Katsushi Kobayashi and Hidetoshi Shimokawa
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  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  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the acknowledgement as bellow:
  16  *
  17  *    This product includes software developed by K. Kobayashi and H. SHimokawa
  18  *
  19  * 4. The name of the author may not be used to endorse or promote products
  20  *    derived from this software without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  24  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  25  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
  26  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  27  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  28  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  30  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  31  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  *
  34  * $FreeBSD: src/sys/dev/firewire/fwohci_pci.c,v 1.38 2004/01/23 17:37:09 simokawa Exp $
  35  * $DragonFly: src/sys/bus/firewire/fwohci_pci.c,v 1.23 2006/12/22 23:12:16 swildner Exp $
  36  */
  37
  38 #define BOUNCE_BUFFER_TEST      0
  39
  40 #include <sys/param.h>
  41 #include <sys/systm.h>
  42 #include <sys/kernel.h>
  43 #include <sys/module.h>
  44 #include <sys/conf.h>
  45 #include <sys/bus.h>
  46 #include <sys/queue.h>
  47 #include <sys/rman.h>
  48 #include <sys/malloc.h>
  49 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
  50 #include <sys/lock.h>
  51 #include <sys/mutex.h>
  52 #endif
  53 #include <sys/thread2.h>
  54
  55 #if defined(__DragonFly__) || __FreeBSD_version < 500000
  56 #include <machine/clock.h>              /* for DELAY() */
  57 #endif
  58
  59 #ifdef __DragonFly__
  60 #include <bus/pci/pcivar.h>
  61 #include <bus/pci/pcireg.h>
  62
  63 #include "firewire.h"
  64 #include "firewirereg.h"
  65
  66 #include "fwdma.h"
  67 #include "fwohcireg.h"
  68 #include "fwohcivar.h"
  69 #else
  70 #if __FreeBSD_version < 500000
  71 #include <pci/pcivar.h>
  72 #include <pci/pcireg.h>
  73 #else
  74 #include <dev/pci/pcivar.h>
  75 #include <dev/pci/pcireg.h>
  76 #endif
  77
  78 #include <dev/firewire/firewire.h>
  79 #include <dev/firewire/firewirereg.h>
  80
  81 #include <dev/firewire/fwdma.h>
  82 #include <dev/firewire/fwohcireg.h>
  83 #include <dev/firewire/fwohcivar.h>
  84 #endif
  85
  86 static int fwohci_pci_attach(device_t self);
  87 static int fwohci_pci_detach(device_t self);
  88
  89 /*
  90  * The probe routine.
  91  */
  92 static int
  93 fwohci_pci_probe( device_t dev )
  94 {
  95 #if 1
  96         u_int32_t id;
  97
  98         id = pci_get_devid(dev);
  99         if (id == (FW_VENDORID_NATSEMI | FW_DEVICE_CS4210)) {
 100                 device_set_desc(dev, "National Semiconductor CS4210");
 101                 return 0;
 102         }
 103         if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD861)) {
 104                 device_set_desc(dev, "NEC uPD72861");
 105                 return 0;
 106         }
 107         if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD871)) {
 108                 device_set_desc(dev, "NEC uPD72871/2");
 109                 return 0;
 110         }
 111         if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD72870)) {
 112                 device_set_desc(dev, "NEC uPD72870");
 113                 return 0;
 114         }
 115         if (id == (FW_VENDORID_NEC | FW_DEVICE_UPD72874)) {
 116                 device_set_desc(dev, "NEC uPD72874");
 117                 return 0;
 118         }
 119         if (id == (FW_VENDORID_SIS | FW_DEVICE_7007)) {
 120                 /* It has no real identifier, using device id. */
 121                 device_set_desc(dev, "SiS 7007");
 122                 return 0;
 123         }
 124         if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB22)) {
 125                 device_set_desc(dev, "Texas Instruments TSB12LV22");
 126                 return 0;
 127         }
 128         if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB23)) {
 129                 device_set_desc(dev, "Texas Instruments TSB12LV23");
 130                 return 0;
 131         }
 132         if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB26)) {
 133                 device_set_desc(dev, "Texas Instruments TSB12LV26");
 134                 return 0;
 135         }
 136         if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB43)) {
 137                 device_set_desc(dev, "Texas Instruments TSB43AA22");
 138                 return 0;
 139         }
 140         if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB43A)) {
 141                 device_set_desc(dev, "Texas Instruments TSB43AB22/A");
 142                 return 0;
 143         }
 144         if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB43AB21)) {
 145                 device_set_desc(dev, "Texas Instruments TSB43AB21/A/AI/A-EP");
 146                 return 0;
 147         }
 148         if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB43AB23)) {
 149                 device_set_desc(dev, "Texas Instruments TSB43AB23");
 150                 return 0;
 151         }
 152         if (id == (FW_VENDORID_TI | FW_DEVICE_TITSB82AA2)) {
 153                 device_set_desc(dev, "Texas Instruments TSB82AA2");
 154                 return 0;
 155         }
 156         if (id == (FW_VENDORID_TI | FW_DEVICE_TIPCI4450)) {
 157                 device_set_desc(dev, "Texas Instruments PCI4450");
 158                 return 0;
 159         }
 160         if (id == (FW_VENDORID_TI | FW_DEVICE_TIPCI4410A)) {
 161                 device_set_desc(dev, "Texas Instruments PCI4410A");
 162                 return 0;
 163         }
 164         if (id == (FW_VENDORID_TI | FW_DEVICE_TIPCI4451)) {
 165                 device_set_desc(dev, "Texas Instruments PCI4451");
 166                 return 0;
 167         }
 168         if (id == (FW_VENDORID_SONY | FW_DEVICE_CXD1947)) {
 169                 device_set_desc(dev, "Sony i.LINK (CXD1947)");
 170                 return 0;
 171         }
 172         if (id == (FW_VENDORID_SONY | FW_DEVICE_CXD3222)) {
 173                 device_set_desc(dev, "Sony i.LINK (CXD3222)");
 174                 return 0;
 175         }
 176         if (id == (FW_VENDORID_VIA | FW_DEVICE_VT6306)) {
 177                 device_set_desc(dev, "VIA Fire II (VT6306)");
 178                 return 0;
 179         }
 180         if (id == (FW_VENDORID_RICOH | FW_DEVICE_R5C551)) {
 181                 device_set_desc(dev, "Ricoh R5C551");
 182                 return 0;
 183         }
 184         if (id == (FW_VENDORID_RICOH | FW_DEVICE_R5C552)) {
 185                 device_set_desc(dev, "Ricoh R5C552");
 186                 return 0;
 187         }
 188         if (id == (FW_VENDORID_APPLE | FW_DEVICE_PANGEA)) {
 189                 device_set_desc(dev, "Apple Pangea");
 190                 return 0;
 191         }
 192         if (id == (FW_VENDORID_APPLE | FW_DEVICE_UNINORTH)) {
 193                 device_set_desc(dev, "Apple UniNorth");
 194                 return 0;
 195         }
 196         if (id == (FW_VENDORID_LUCENT | FW_DEVICE_FW322)) {
 197                 device_set_desc(dev, "Lucent FW322/323");
 198                 return 0;
 199         }
 200         if (id == (FW_VENDORID_INTEL | FW_DEVICE_82372FB)) {
 201                 device_set_desc(dev, "Intel 82372FB");
 202                 return 0;
 203         }
 204         if (id == (FW_VENDORID_ADAPTEC | FW_DEVICE_AIC5800)) {
 205                 device_set_desc(dev, "Adaptec AHA-894x/AIC-5800");
 206                 return 0;
 207         }
 208 #endif
 209         if (pci_get_class(dev) == PCIC_SERIALBUS
 210                         && pci_get_subclass(dev) == PCIS_SERIALBUS_FW
 211                         && pci_get_progif(dev) == PCI_INTERFACE_OHCI) {
 212                 device_printf(dev, "vendor=%x, dev=%x\n", pci_get_vendor(dev),
 213                         pci_get_device(dev));
 214                 device_set_desc(dev, "1394 Open Host Controller Interface");
 215                 return 0;
 216         }
 217
 218         return ENXIO;
 219 }
 220
 221 static int
 222 fwohci_pci_init(device_t self)
 223 {
 224         int olatency, latency, ocache_line, cache_line;
 225         u_int16_t cmd;
 226
 227         /*
 228          * Clear PCIM_CMD_MWRICEN as per FreeBSD/1.20, but note that the
 229          * problem may have been related to SERR and PERR being
 230          * unconditionally enabled in that rev.
 231          *
 232          * Do not change the SERRESPEN or PERRESPEN bits.  Use the BIOS
 233          * values (probably off).  This crashes some machines in fwohci_init().
 234          *
 235          * The theory here is that the device may not be properly initializing
 236          * its on-chip memory, leaving some of it in a parity errored state,
 237          * and enabling parity check may result in the device blowing up.
 238          * It's also possible that some hardware is just plain broken.  OpenBSD
 239          * does not turn on SERRESPEN or PERRESPEN so we won't either.
 240          */
 241         cmd = pci_read_config(self, PCIR_COMMAND, 2);
 242         cmd |= PCIM_CMD_MEMEN | PCIM_CMD_BUSMASTEREN;
 243         cmd &= ~PCIM_CMD_MWRICEN;
 244         pci_write_config(self, PCIR_COMMAND, cmd, 2);
 245
 246         latency = olatency = pci_read_config(self, PCIR_LATTIMER, 1);
 247 #define DEF_LATENCY 0x20
 248         if (olatency < DEF_LATENCY) {
 249                 latency = DEF_LATENCY;
 250                 pci_write_config(self, PCIR_LATTIMER, latency, 1);
 251         }
 252
 253         cache_line = ocache_line = pci_read_config(self, PCIR_CACHELNSZ, 1);
 254 #define DEF_CACHE_LINE 8
 255         if (ocache_line < DEF_CACHE_LINE) {
 256                 cache_line = DEF_CACHE_LINE;
 257                 pci_write_config(self, PCIR_CACHELNSZ, cache_line, 1);
 258         }
 259
 260         if (firewire_debug) {
 261                 device_printf(self, "latency timer %d -> %d.\n",
 262                         olatency, latency);
 263                 device_printf(self, "cache size %d -> %d.\n",
 264                         ocache_line, cache_line);
 265         }
 266
 267         return 0;
 268 }
 269
 270 static int
 271 fwohci_pci_attach(device_t self)
 272 {
 273         fwohci_softc_t *sc = device_get_softc(self);
 274         int err;
 275         int rid;
 276 #if defined(__DragonFly__) || __FreeBSD_version < 500000
 277         int intr;
 278         /* For the moment, put in a message stating what is wrong */
 279         intr = pci_read_config(self, PCIR_INTLINE, 1);
 280         if (intr == 0 || intr == 255) {
 281                 device_printf(self, "Invalid irq %d\n", intr);
 282 #ifdef __i386__
 283                 device_printf(self, "Please switch PNP-OS to 'No' in BIOS\n");
 284 #endif
 285         }
 286 #endif
 287
 288         if (bootverbose)
 289                 firewire_debug = bootverbose;
 290
 291         fwohci_pci_init(self);
 292
 293         rid = PCI_CBMEM;
 294         sc->bsr = bus_alloc_resource(self, SYS_RES_MEMORY, &rid,
 295                                         0, ~0, 1, RF_ACTIVE);
 296         if (!sc->bsr) {
 297                 device_printf(self, "Could not map memory\n");
 298                 return ENXIO;
 299         }
 300
 301         sc->bst = rman_get_bustag(sc->bsr);
 302         sc->bsh = rman_get_bushandle(sc->bsr);
 303
 304         rid = 0;
 305         sc->irq_res = bus_alloc_resource(self, SYS_RES_IRQ, &rid, 0, ~0, 1,
 306                                      RF_SHAREABLE | RF_ACTIVE);
 307         if (sc->irq_res == NULL) {
 308                 device_printf(self, "Could not allocate irq\n");
 309                 fwohci_pci_detach(self);
 310                 return ENXIO;
 311         }
 312
 313
 314         err = bus_setup_intr(self, sc->irq_res,
 315 #if FWOHCI_TASKQUEUE
 316                         INTR_MPSAFE,
 317 #else
 318                         0,
 319 #endif
 320                      (driver_intr_t *) fwohci_intr, sc, &sc->ih, NULL);
 321         if (err) {
 322                 device_printf(self, "Could not setup irq, %d\n", err);
 323                 fwohci_pci_detach(self);
 324                 return ENXIO;
 325         }
 326
 327         err = bus_dma_tag_create(/*parent*/NULL, /*alignment*/1,
 328                                 /*boundary*/0,
 329 #if BOUNCE_BUFFER_TEST
 330                                 /*lowaddr*/BUS_SPACE_MAXADDR_24BIT,
 331 #else
 332                                 /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
 333 #endif
 334                                 /*highaddr*/BUS_SPACE_MAXADDR,
 335                                 /*filter*/NULL, /*filterarg*/NULL,
 336                                 /*maxsize*/0x100000,
 337                                 /*nsegments*/0x20,
 338                                 /*maxsegsz*/0x8000,
 339                                 /*flags*/BUS_DMA_ALLOCNOW,
 340 #if defined(__FreeBSD__) && __FreeBSD_version >= 501102
 341                                 /*lockfunc*/busdma_lock_mutex,
 342                                 /*lockarg*/&Giant,
 343 #endif
 344                                 &sc->fc.dmat);
 345         if (err != 0) {
 346                 kprintf("fwohci_pci_attach: Could not allocate DMA tag "
 347                         "- error %d\n", err);
 348                         return (ENOMEM);
 349         }
 350
 351         err = fwohci_init(sc, self);
 352
 353         if (err) {
 354                 device_printf(self, "fwohci_init failed with err=%d\n", err);
 355                 fwohci_pci_detach(self);
 356                 return EIO;
 357         }
 358
 359         /* probe and attach a child device(firewire) */
 360         bus_generic_probe(self);
 361         bus_generic_attach(self);
 362
 363         return 0;
 364 }
 365
 366 static int
 367 fwohci_pci_detach(device_t self)
 368 {
 369         fwohci_softc_t *sc = device_get_softc(self);
 370
 371         crit_enter();
 372         if (sc->bsr)
 373                 fwohci_stop(sc, self);
 374
 375         bus_generic_detach(self);
 376         if (sc->fc.bdev) {
 377                 device_delete_child(self, sc->fc.bdev);
 378                 sc->fc.bdev = NULL;
 379         }
 380
 381         /* disable interrupts that might have been switched on */
 382         if (sc->bst && sc->bsh)
 383                 bus_space_write_4(sc->bst, sc->bsh,
 384                                   FWOHCI_INTMASKCLR, OHCI_INT_EN);
 385
 386         if (sc->irq_res) {
 387                 int err = bus_teardown_intr(self, sc->irq_res, sc->ih);
 388                 if (err)
 389                         /* XXX or should we panic? */
 390                         device_printf(self, "Could not tear down irq, %d\n",
 391                                       err);
 392                 sc->ih = NULL;
 393         }
 394
 395         if (sc->irq_res) {
 396                 bus_release_resource(self, SYS_RES_IRQ, 0, sc->irq_res);
 397                 sc->irq_res = NULL;
 398         }
 399
 400         if (sc->bsr) {
 401                 bus_release_resource(self, SYS_RES_MEMORY,PCI_CBMEM,sc->bsr);
 402                 sc->bsr = NULL;
 403                 sc->bst = 0;
 404                 sc->bsh = 0;
 405         }
 406
 407         fwohci_detach(sc, self);
 408         crit_exit();
 409
 410         return 0;
 411 }
 412
 413 static int
 414 fwohci_pci_suspend(device_t dev)
 415 {
 416         fwohci_softc_t *sc = device_get_softc(dev);
 417         int err;
 418
 419         device_printf(dev, "fwohci_pci_suspend\n");
 420         err = bus_generic_suspend(dev);
 421         if (err)
 422                 return err;
 423         fwohci_stop(sc, dev);
 424         return 0;
 425 }
 426
 427 static int
 428 fwohci_pci_resume(device_t dev)
 429 {
 430         fwohci_softc_t *sc = device_get_softc(dev);
 431
 432 #ifndef BURN_BRIDGES
 433         device_printf(dev, "fwohci_pci_resume: power_state = 0x%08x\n",
 434                                         pci_get_powerstate(dev));
 435         pci_set_powerstate(dev, PCI_POWERSTATE_D0);
 436 #endif
 437         fwohci_pci_init(dev);
 438         fwohci_resume(sc, dev);
 439         return 0;
 440 }
 441
 442 static int
 443 fwohci_pci_shutdown(device_t dev)
 444 {
 445         fwohci_softc_t *sc = device_get_softc(dev);
 446
 447         bus_generic_shutdown(dev);
 448         fwohci_stop(sc, dev);
 449         return 0;
 450 }
 451
 452 static device_t
 453 fwohci_pci_add_child(device_t bus, device_t parent, int order, const char *name, int unit)
 454 {
 455         struct fwohci_softc *sc;
 456         device_t child;
 457         int err = 0;
 458
 459         sc = (struct fwohci_softc *)device_get_softc(bus);
 460         child = device_add_child(parent, name, unit);
 461         if (child == NULL)
 462                 return (child);
 463
 464         sc->fc.bdev = child;
 465         device_set_ivars(child, (void *)&sc->fc);
 466
 467         err = device_probe_and_attach(child);
 468         if (err) {
 469                 device_printf(parent, "probe_and_attach failed with err=%d\n",
 470                     err);
 471                 fwohci_pci_detach(parent);
 472                 device_delete_child(parent, child);
 473                 return NULL;
 474         }
 475
 476         /* XXX
 477          * Clear the bus reset event flag to start transactions even when
 478          * interrupt is disabled during the boot process.
 479          */
 480         DELAY(250); /* 2 cycles */
 481         crit_enter();
 482         fwohci_poll((void *)sc, 0, -1);
 483         crit_exit();
 484
 485         return (child);
 486 }
 487
 488 static device_method_t fwohci_methods[] = {
 489         /* Device interface */
 490         DEVMETHOD(device_probe,         fwohci_pci_probe),
 491         DEVMETHOD(device_attach,        fwohci_pci_attach),
 492         DEVMETHOD(device_detach,        fwohci_pci_detach),
 493         DEVMETHOD(device_suspend,       fwohci_pci_suspend),
 494         DEVMETHOD(device_resume,        fwohci_pci_resume),
 495         DEVMETHOD(device_shutdown,      fwohci_pci_shutdown),
 496
 497         /* Bus interface */
 498         DEVMETHOD(bus_add_child,        fwohci_pci_add_child),
 499         DEVMETHOD(bus_print_child,      bus_generic_print_child),
 500
 501         { 0, 0 }
 502 };
 503
 504 static driver_t fwohci_driver = {
 505         "fwohci",
 506         fwohci_methods,
 507         sizeof(fwohci_softc_t),
 508 };
 509
 510 static devclass_t fwohci_devclass;
 511
 512 #ifdef FWOHCI_MODULE
 513 MODULE_DEPEND(fwohci, firewire, 1, 1, 1);
 514 #endif
 515 DRIVER_MODULE(fwohci, pci, fwohci_driver, fwohci_devclass, 0, 0);
 516 DRIVER_MODULE(fwohci, cardbus, fwohci_driver, fwohci_devclass, 0, 0);