hw/intel-hda.c

   1 /*
   2  * Copyright (C) 2010 Red Hat, Inc.
   3  *
   4  * written by Gerd Hoffmann <kraxel@redhat.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; either version 2 or
   9  * (at your option) version 3 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "hw.h"
  21 #include "pci.h"
  22 #include "msi.h"
  23 #include "qemu-timer.h"
  24 #include "audiodev.h"
  25 #include "intel-hda.h"
  26 #include "intel-hda-defs.h"
  27
  28 /* --------------------------------------------------------------------- */
  29 /* hda bus                                                               */
  30
  31 static struct BusInfo hda_codec_bus_info = {
  32     .name      = "HDA",
  33     .size      = sizeof(HDACodecBus),
  34     .props     = (Property[]) {
  35         DEFINE_PROP_UINT32("cad", HDACodecDevice, cad, -1),
  36         DEFINE_PROP_END_OF_LIST()
  37     }
  38 };
  39
  40 void hda_codec_bus_init(DeviceState *dev, HDACodecBus *bus,
  41                         hda_codec_response_func response,
  42                         hda_codec_xfer_func xfer)
  43 {
  44     qbus_create_inplace(&bus->qbus, &hda_codec_bus_info, dev, NULL);
  45     bus->response = response;
  46     bus->xfer = xfer;
  47 }
  48
  49 static int hda_codec_dev_init(DeviceState *qdev, DeviceInfo *base)
  50 {
  51     HDACodecBus *bus = DO_UPCAST(HDACodecBus, qbus, qdev->parent_bus);
  52     HDACodecDevice *dev = DO_UPCAST(HDACodecDevice, qdev, qdev);
  53     HDACodecDeviceInfo *info = DO_UPCAST(HDACodecDeviceInfo, qdev, base);
  54
  55     dev->info = info;
  56     if (dev->cad == -1) {
  57         dev->cad = bus->next_cad;
  58     }
  59     if (dev->cad >= 15) {
  60         return -1;
  61     }
  62     bus->next_cad = dev->cad + 1;
  63     return info->init(dev);
  64 }
  65
  66 static int hda_codec_dev_exit(DeviceState *qdev)
  67 {
  68     HDACodecDevice *dev = DO_UPCAST(HDACodecDevice, qdev, qdev);
  69
  70     if (dev->info->exit) {
  71         dev->info->exit(dev);
  72     }
  73     return 0;
  74 }
  75
  76 void hda_codec_register(HDACodecDeviceInfo *info)
  77 {
  78     info->qdev.init = hda_codec_dev_init;
  79     info->qdev.exit = hda_codec_dev_exit;
  80     info->qdev.bus_info = &hda_codec_bus_info;
  81     qdev_register(&info->qdev);
  82 }
  83
  84 HDACodecDevice *hda_codec_find(HDACodecBus *bus, uint32_t cad)
  85 {
  86     DeviceState *qdev;
  87     HDACodecDevice *cdev;
  88
  89     QLIST_FOREACH(qdev, &bus->qbus.children, sibling) {
  90         cdev = DO_UPCAST(HDACodecDevice, qdev, qdev);
  91         if (cdev->cad == cad) {
  92             return cdev;
  93         }
  94     }
  95     return NULL;
  96 }
  97
  98 void hda_codec_response(HDACodecDevice *dev, bool solicited, uint32_t response)
  99 {
 100     HDACodecBus *bus = DO_UPCAST(HDACodecBus, qbus, dev->qdev.parent_bus);
 101     bus->response(dev, solicited, response);
 102 }
 103
 104 bool hda_codec_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
 105                     uint8_t *buf, uint32_t len)
 106 {
 107     HDACodecBus *bus = DO_UPCAST(HDACodecBus, qbus, dev->qdev.parent_bus);
 108     return bus->xfer(dev, stnr, output, buf, len);
 109 }
 110
 111 /* --------------------------------------------------------------------- */
 112 /* intel hda emulation                                                   */
 113
 114 typedef struct IntelHDAStream IntelHDAStream;
 115 typedef struct IntelHDAState IntelHDAState;
 116 typedef struct IntelHDAReg IntelHDAReg;
 117
 118 typedef struct bpl {
 119     uint64_t addr;
 120     uint32_t len;
 121     uint32_t flags;
 122 } bpl;
 123
 124 struct IntelHDAStream {
 125     /* registers */
 126     uint32_t ctl;
 127     uint32_t lpib;
 128     uint32_t cbl;
 129     uint32_t lvi;
 130     uint32_t fmt;
 131     uint32_t bdlp_lbase;
 132     uint32_t bdlp_ubase;
 133
 134     /* state */
 135     bpl      *bpl;
 136     uint32_t bentries;
 137     uint32_t bsize, be, bp;
 138 };
 139
 140 struct IntelHDAState {
 141     PCIDevice pci;
 142     const char *name;
 143     HDACodecBus codecs;
 144
 145     /* registers */
 146     uint32_t g_ctl;
 147     uint32_t wake_en;
 148     uint32_t state_sts;
 149     uint32_t int_ctl;
 150     uint32_t int_sts;
 151     uint32_t wall_clk;
 152
 153     uint32_t corb_lbase;
 154     uint32_t corb_ubase;
 155     uint32_t corb_rp;
 156     uint32_t corb_wp;
 157     uint32_t corb_ctl;
 158     uint32_t corb_sts;
 159     uint32_t corb_size;
 160
 161     uint32_t rirb_lbase;
 162     uint32_t rirb_ubase;
 163     uint32_t rirb_wp;
 164     uint32_t rirb_cnt;
 165     uint32_t rirb_ctl;
 166     uint32_t rirb_sts;
 167     uint32_t rirb_size;
 168
 169     uint32_t dp_lbase;
 170     uint32_t dp_ubase;
 171
 172     uint32_t icw;
 173     uint32_t irr;
 174     uint32_t ics;
 175
 176     /* streams */
 177     IntelHDAStream st[8];
 178
 179     /* state */
 180     MemoryRegion mmio;
 181     uint32_t rirb_count;
 182     int64_t wall_base_ns;
 183
 184     /* debug logging */
 185     const IntelHDAReg *last_reg;
 186     uint32_t last_val;
 187     uint32_t last_write;
 188     uint32_t last_sec;
 189     uint32_t repeat_count;
 190
 191     /* properties */
 192     uint32_t debug;
 193     uint32_t msi;
 194 };
 195
 196 struct IntelHDAReg {
 197     const char *name;      /* register name */
 198     uint32_t   size;       /* size in bytes */
 199     uint32_t   reset;      /* reset value */
 200     uint32_t   wmask;      /* write mask */
 201     uint32_t   wclear;     /* write 1 to clear bits */
 202     uint32_t   offset;     /* location in IntelHDAState */
 203     uint32_t   shift;      /* byte access entries for dwords */
 204     uint32_t   stream;
 205     void       (*whandler)(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old);
 206     void       (*rhandler)(IntelHDAState *d, const IntelHDAReg *reg);
 207 };
 208
 209 static void intel_hda_reset(DeviceState *dev);
 210
 211 /* --------------------------------------------------------------------- */
 212
 213 static target_phys_addr_t intel_hda_addr(uint32_t lbase, uint32_t ubase)
 214 {
 215     target_phys_addr_t addr;
 216
 217 #if TARGET_PHYS_ADDR_BITS == 32
 218     addr = lbase;
 219 #else
 220     addr = ubase;
 221     addr <<= 32;
 222     addr |= lbase;
 223 #endif
 224     return addr;
 225 }
 226
 227 static void intel_hda_update_int_sts(IntelHDAState *d)
 228 {
 229     uint32_t sts = 0;
 230     uint32_t i;
 231
 232     /* update controller status */
 233     if (d->rirb_sts & ICH6_RBSTS_IRQ) {
 234         sts |= (1 << 30);
 235     }
 236     if (d->rirb_sts & ICH6_RBSTS_OVERRUN) {
 237         sts |= (1 << 30);
 238     }
 239     if (d->state_sts & d->wake_en) {
 240         sts |= (1 << 30);
 241     }
 242
 243     /* update stream status */
 244     for (i = 0; i < 8; i++) {
 245         /* buffer completion interrupt */
 246         if (d->st[i].ctl & (1 << 26)) {
 247             sts |= (1 << i);
 248         }
 249     }
 250
 251     /* update global status */
 252     if (sts & d->int_ctl) {
 253         sts |= (1 << 31);
 254     }
 255
 256     d->int_sts = sts;
 257 }
 258
 259 static void intel_hda_update_irq(IntelHDAState *d)
 260 {
 261     int msi = d->msi && msi_enabled(&d->pci);
 262     int level;
 263
 264     intel_hda_update_int_sts(d);
 265     if (d->int_sts & (1 << 31) && d->int_ctl & (1 << 31)) {
 266         level = 1;
 267     } else {
 268         level = 0;
 269     }
 270     dprint(d, 2, "%s: level %d [%s]\n", __FUNCTION__,
 271            level, msi ? "msi" : "intx");
 272     if (msi) {
 273         if (level) {
 274             msi_notify(&d->pci, 0);
 275         }
 276     } else {
 277         qemu_set_irq(d->pci.irq[0], level);
 278     }
 279 }
 280
 281 static int intel_hda_send_command(IntelHDAState *d, uint32_t verb)
 282 {
 283     uint32_t cad, nid, data;
 284     HDACodecDevice *codec;
 285
 286     cad = (verb >> 28) & 0x0f;
 287     if (verb & (1 << 27)) {
 288         /* indirect node addressing, not specified in HDA 1.0 */
 289         dprint(d, 1, "%s: indirect node addressing (guest bug?)\n", __FUNCTION__);
 290         return -1;
 291     }
 292     nid = (verb >> 20) & 0x7f;
 293     data = verb & 0xfffff;
 294
 295     codec = hda_codec_find(&d->codecs, cad);
 296     if (codec == NULL) {
 297         dprint(d, 1, "%s: addressed non-existing codec\n", __FUNCTION__);
 298         return -1;
 299     }
 300     codec->info->command(codec, nid, data);
 301     return 0;
 302 }
 303
 304 static void intel_hda_corb_run(IntelHDAState *d)
 305 {
 306     target_phys_addr_t addr;
 307     uint32_t rp, verb;
 308
 309     if (d->ics & ICH6_IRS_BUSY) {
 310         dprint(d, 2, "%s: [icw] verb 0x%08x\n", __FUNCTION__, d->icw);
 311         intel_hda_send_command(d, d->icw);
 312         return;
 313     }
 314
 315     for (;;) {
 316         if (!(d->corb_ctl & ICH6_CORBCTL_RUN)) {
 317             dprint(d, 2, "%s: !run\n", __FUNCTION__);
 318             return;
 319         }
 320         if ((d->corb_rp & 0xff) == d->corb_wp) {
 321             dprint(d, 2, "%s: corb ring empty\n", __FUNCTION__);
 322             return;
 323         }
 324         if (d->rirb_count == d->rirb_cnt) {
 325             dprint(d, 2, "%s: rirb count reached\n", __FUNCTION__);
 326             return;
 327         }
 328
 329         rp = (d->corb_rp + 1) & 0xff;
 330         addr = intel_hda_addr(d->corb_lbase, d->corb_ubase);
 331         verb = ldl_le_phys(addr + 4*rp);
 332         d->corb_rp = rp;
 333
 334         dprint(d, 2, "%s: [rp 0x%x] verb 0x%08x\n", __FUNCTION__, rp, verb);
 335         intel_hda_send_command(d, verb);
 336     }
 337 }
 338
 339 static void intel_hda_response(HDACodecDevice *dev, bool solicited, uint32_t response)
 340 {
 341     HDACodecBus *bus = DO_UPCAST(HDACodecBus, qbus, dev->qdev.parent_bus);
 342     IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
 343     target_phys_addr_t addr;
 344     uint32_t wp, ex;
 345
 346     if (d->ics & ICH6_IRS_BUSY) {
 347         dprint(d, 2, "%s: [irr] response 0x%x, cad 0x%x\n",
 348                __FUNCTION__, response, dev->cad);
 349         d->irr = response;
 350         d->ics &= ~(ICH6_IRS_BUSY | 0xf0);
 351         d->ics |= (ICH6_IRS_VALID | (dev->cad << 4));
 352         return;
 353     }
 354
 355     if (!(d->rirb_ctl & ICH6_RBCTL_DMA_EN)) {
 356         dprint(d, 1, "%s: rirb dma disabled, drop codec response\n", __FUNCTION__);
 357         return;
 358     }
 359
 360     ex = (solicited ? 0 : (1 << 4)) | dev->cad;
 361     wp = (d->rirb_wp + 1) & 0xff;
 362     addr = intel_hda_addr(d->rirb_lbase, d->rirb_ubase);
 363     stl_le_phys(addr + 8*wp, response);
 364     stl_le_phys(addr + 8*wp + 4, ex);
 365     d->rirb_wp = wp;
 366
 367     dprint(d, 2, "%s: [wp 0x%x] response 0x%x, extra 0x%x\n",
 368            __FUNCTION__, wp, response, ex);
 369
 370     d->rirb_count++;
 371     if (d->rirb_count == d->rirb_cnt) {
 372         dprint(d, 2, "%s: rirb count reached (%d)\n", __FUNCTION__, d->rirb_count);
 373         if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
 374             d->rirb_sts |= ICH6_RBSTS_IRQ;
 375             intel_hda_update_irq(d);
 376         }
 377     } else if ((d->corb_rp & 0xff) == d->corb_wp) {
 378         dprint(d, 2, "%s: corb ring empty (%d/%d)\n", __FUNCTION__,
 379                d->rirb_count, d->rirb_cnt);
 380         if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
 381             d->rirb_sts |= ICH6_RBSTS_IRQ;
 382             intel_hda_update_irq(d);
 383         }
 384     }
 385 }
 386
 387 static bool intel_hda_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
 388                            uint8_t *buf, uint32_t len)
 389 {
 390     HDACodecBus *bus = DO_UPCAST(HDACodecBus, qbus, dev->qdev.parent_bus);
 391     IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
 392     IntelHDAStream *st = NULL;
 393     target_phys_addr_t addr;
 394     uint32_t s, copy, left;
 395     bool irq = false;
 396
 397     for (s = 0; s < ARRAY_SIZE(d->st); s++) {
 398         if (stnr == ((d->st[s].ctl >> 20) & 0x0f)) {
 399             st = d->st + s;
 400             break;
 401         }
 402     }
 403     if (st == NULL) {
 404         return false;
 405     }
 406     if (st->bpl == NULL) {
 407         return false;
 408     }
 409     if (st->ctl & (1 << 26)) {
 410         /*
 411          * Wait with the next DMA xfer until the guest
 412          * has acked the buffer completion interrupt
 413          */
 414         return false;
 415     }
 416
 417     left = len;
 418     while (left > 0) {
 419         copy = left;
 420         if (copy > st->bsize - st->lpib)
 421             copy = st->bsize - st->lpib;
 422         if (copy > st->bpl[st->be].len - st->bp)
 423             copy = st->bpl[st->be].len - st->bp;
 424
 425         dprint(d, 3, "dma: entry %d, pos %d/%d, copy %d\n",
 426                st->be, st->bp, st->bpl[st->be].len, copy);
 427
 428         cpu_physical_memory_rw(st->bpl[st->be].addr + st->bp,
 429                                buf, copy, !output);
 430         st->lpib += copy;
 431         st->bp += copy;
 432         buf += copy;
 433         left -= copy;
 434
 435         if (st->bpl[st->be].len == st->bp) {
 436             /* bpl entry filled */
 437             if (st->bpl[st->be].flags & 0x01) {
 438                 irq = true;
 439             }
 440             st->bp = 0;
 441             st->be++;
 442             if (st->be == st->bentries) {
 443                 /* bpl wrap around */
 444                 st->be = 0;
 445                 st->lpib = 0;
 446             }
 447         }
 448     }
 449     if (d->dp_lbase & 0x01) {
 450         addr = intel_hda_addr(d->dp_lbase & ~0x01, d->dp_ubase);
 451         stl_le_phys(addr + 8*s, st->lpib);
 452     }
 453     dprint(d, 3, "dma: --\n");
 454
 455     if (irq) {
 456         st->ctl |= (1 << 26); /* buffer completion interrupt */
 457         intel_hda_update_irq(d);
 458     }
 459     return true;
 460 }
 461
 462 static void intel_hda_parse_bdl(IntelHDAState *d, IntelHDAStream *st)
 463 {
 464     target_phys_addr_t addr;
 465     uint8_t buf[16];
 466     uint32_t i;
 467
 468     addr = intel_hda_addr(st->bdlp_lbase, st->bdlp_ubase);
 469     st->bentries = st->lvi +1;
 470     g_free(st->bpl);
 471     st->bpl = g_malloc(sizeof(bpl) * st->bentries);
 472     for (i = 0; i < st->bentries; i++, addr += 16) {
 473         cpu_physical_memory_read(addr, buf, 16);
 474         st->bpl[i].addr  = le64_to_cpu(*(uint64_t *)buf);
 475         st->bpl[i].len   = le32_to_cpu(*(uint32_t *)(buf + 8));
 476         st->bpl[i].flags = le32_to_cpu(*(uint32_t *)(buf + 12));
 477         dprint(d, 1, "bdl/%d: 0x%" PRIx64 " +0x%x, 0x%x\n",
 478                i, st->bpl[i].addr, st->bpl[i].len, st->bpl[i].flags);
 479     }
 480
 481     st->bsize = st->cbl;
 482     st->lpib  = 0;
 483     st->be    = 0;
 484     st->bp    = 0;
 485 }
 486
 487 static void intel_hda_notify_codecs(IntelHDAState *d, uint32_t stream, bool running)
 488 {
 489     DeviceState *qdev;
 490     HDACodecDevice *cdev;
 491
 492     QLIST_FOREACH(qdev, &d->codecs.qbus.children, sibling) {
 493         cdev = DO_UPCAST(HDACodecDevice, qdev, qdev);
 494         if (cdev->info->stream) {
 495             cdev->info->stream(cdev, stream, running);
 496         }
 497     }
 498 }
 499
 500 /* --------------------------------------------------------------------- */
 501
 502 static void intel_hda_set_g_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
 503 {
 504     if ((d->g_ctl & ICH6_GCTL_RESET) == 0) {
 505         intel_hda_reset(&d->pci.qdev);
 506     }
 507 }
 508
 509 static void intel_hda_set_wake_en(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
 510 {
 511     intel_hda_update_irq(d);
 512 }
 513
 514 static void intel_hda_set_state_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
 515 {
 516     intel_hda_update_irq(d);
 517 }
 518
 519 static void intel_hda_set_int_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
 520 {
 521     intel_hda_update_irq(d);
 522 }
 523
 524 static void intel_hda_get_wall_clk(IntelHDAState *d, const IntelHDAReg *reg)
 525 {
 526     int64_t ns;
 527
 528     ns = qemu_get_clock_ns(vm_clock) - d->wall_base_ns;
 529     d->wall_clk = (uint32_t)(ns * 24 / 1000);  /* 24 MHz */
 530 }
 531
 532 static void intel_hda_set_corb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
 533 {
 534     intel_hda_corb_run(d);
 535 }
 536
 537 static void intel_hda_set_corb_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
 538 {
 539     intel_hda_corb_run(d);
 540 }
 541
 542 static void intel_hda_set_rirb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
 543 {
 544     if (d->rirb_wp & ICH6_RIRBWP_RST) {
 545         d->rirb_wp = 0;
 546     }
 547 }
 548
 549 static void intel_hda_set_rirb_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
 550 {
 551     intel_hda_update_irq(d);
 552
 553     if ((old & ICH6_RBSTS_IRQ) && !(d->rirb_sts & ICH6_RBSTS_IRQ)) {
 554         /* cleared ICH6_RBSTS_IRQ */
 555         d->rirb_count = 0;
 556         intel_hda_corb_run(d);
 557     }
 558 }
 559
 560 static void intel_hda_set_ics(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
 561 {
 562     if (d->ics & ICH6_IRS_BUSY) {
 563         intel_hda_corb_run(d);
 564     }
 565 }
 566
 567 static void intel_hda_set_st_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
 568 {
 569     IntelHDAStream *st = d->st + reg->stream;
 570
 571     if (st->ctl & 0x01) {
 572         /* reset */
 573         dprint(d, 1, "st #%d: reset\n", reg->stream);
 574         st->ctl = 0;
 575     }
 576     if ((st->ctl & 0x02) != (old & 0x02)) {
 577         uint32_t stnr = (st->ctl >> 20) & 0x0f;
 578         /* run bit flipped */
 579         if (st->ctl & 0x02) {
 580             /* start */
 581             dprint(d, 1, "st #%d: start %d (ring buf %d bytes)\n",
 582                    reg->stream, stnr, st->cbl);
 583             intel_hda_parse_bdl(d, st);
 584             intel_hda_notify_codecs(d, stnr, true);
 585         } else {
 586             /* stop */
 587             dprint(d, 1, "st #%d: stop %d\n", reg->stream, stnr);
 588             intel_hda_notify_codecs(d, stnr, false);
 589         }
 590     }
 591     intel_hda_update_irq(d);
 592 }
 593
 594 /* --------------------------------------------------------------------- */
 595
 596 #define ST_REG(_n, _o) (0x80 + (_n) * 0x20 + (_o))
 597
 598 static const struct IntelHDAReg regtab[] = {
 599     /* global */
 600     [ ICH6_REG_GCAP ] = {
 601         .name     = "GCAP",
 602         .size     = 2,
 603         .reset    = 0x4401,
 604     },
 605     [ ICH6_REG_VMIN ] = {
 606         .name     = "VMIN",
 607         .size     = 1,
 608     },
 609     [ ICH6_REG_VMAJ ] = {
 610         .name     = "VMAJ",
 611         .size     = 1,
 612         .reset    = 1,
 613     },
 614     [ ICH6_REG_OUTPAY ] = {
 615         .name     = "OUTPAY",
 616         .size     = 2,
 617         .reset    = 0x3c,
 618     },
 619     [ ICH6_REG_INPAY ] = {
 620         .name     = "INPAY",
 621         .size     = 2,
 622         .reset    = 0x1d,
 623     },
 624     [ ICH6_REG_GCTL ] = {
 625         .name     = "GCTL",
 626         .size     = 4,
 627         .wmask    = 0x0103,
 628         .offset   = offsetof(IntelHDAState, g_ctl),
 629         .whandler = intel_hda_set_g_ctl,
 630     },
 631     [ ICH6_REG_WAKEEN ] = {
 632         .name     = "WAKEEN",
 633         .size     = 2,
 634         .wmask    = 0x7fff,
 635         .offset   = offsetof(IntelHDAState, wake_en),
 636         .whandler = intel_hda_set_wake_en,
 637     },
 638     [ ICH6_REG_STATESTS ] = {
 639         .name     = "STATESTS",
 640         .size     = 2,
 641         .wmask    = 0x7fff,
 642         .wclear   = 0x7fff,
 643         .offset   = offsetof(IntelHDAState, state_sts),
 644         .whandler = intel_hda_set_state_sts,
 645     },
 646
 647     /* interrupts */
 648     [ ICH6_REG_INTCTL ] = {
 649         .name     = "INTCTL",
 650         .size     = 4,
 651         .wmask    = 0xc00000ff,
 652         .offset   = offsetof(IntelHDAState, int_ctl),
 653         .whandler = intel_hda_set_int_ctl,
 654     },
 655     [ ICH6_REG_INTSTS ] = {
 656         .name     = "INTSTS",
 657         .size     = 4,
 658         .wmask    = 0xc00000ff,
 659         .wclear   = 0xc00000ff,
 660         .offset   = offsetof(IntelHDAState, int_sts),
 661     },
 662
 663     /* misc */
 664     [ ICH6_REG_WALLCLK ] = {
 665         .name     = "WALLCLK",
 666         .size     = 4,
 667         .offset   = offsetof(IntelHDAState, wall_clk),
 668         .rhandler = intel_hda_get_wall_clk,
 669     },
 670     [ ICH6_REG_WALLCLK + 0x2000 ] = {
 671         .name     = "WALLCLK(alias)",
 672         .size     = 4,
 673         .offset   = offsetof(IntelHDAState, wall_clk),
 674         .rhandler = intel_hda_get_wall_clk,
 675     },
 676
 677     /* dma engine */
 678     [ ICH6_REG_CORBLBASE ] = {
 679         .name     = "CORBLBASE",
 680         .size     = 4,
 681         .wmask    = 0xffffff80,
 682         .offset   = offsetof(IntelHDAState, corb_lbase),
 683     },
 684     [ ICH6_REG_CORBUBASE ] = {
 685         .name     = "CORBUBASE",
 686         .size     = 4,
 687         .wmask    = 0xffffffff,
 688         .offset   = offsetof(IntelHDAState, corb_ubase),
 689     },
 690     [ ICH6_REG_CORBWP ] = {
 691         .name     = "CORBWP",
 692         .size     = 2,
 693         .wmask    = 0xff,
 694         .offset   = offsetof(IntelHDAState, corb_wp),
 695         .whandler = intel_hda_set_corb_wp,
 696     },
 697     [ ICH6_REG_CORBRP ] = {
 698         .name     = "CORBRP",
 699         .size     = 2,
 700         .wmask    = 0x80ff,
 701         .offset   = offsetof(IntelHDAState, corb_rp),
 702     },
 703     [ ICH6_REG_CORBCTL ] = {
 704         .name     = "CORBCTL",
 705         .size     = 1,
 706         .wmask    = 0x03,
 707         .offset   = offsetof(IntelHDAState, corb_ctl),
 708         .whandler = intel_hda_set_corb_ctl,
 709     },
 710     [ ICH6_REG_CORBSTS ] = {
 711         .name     = "CORBSTS",
 712         .size     = 1,
 713         .wmask    = 0x01,
 714         .wclear   = 0x01,
 715         .offset   = offsetof(IntelHDAState, corb_sts),
 716     },
 717     [ ICH6_REG_CORBSIZE ] = {
 718         .name     = "CORBSIZE",
 719         .size     = 1,
 720         .reset    = 0x42,
 721         .offset   = offsetof(IntelHDAState, corb_size),
 722     },
 723     [ ICH6_REG_RIRBLBASE ] = {
 724         .name     = "RIRBLBASE",
 725         .size     = 4,
 726         .wmask    = 0xffffff80,
 727         .offset   = offsetof(IntelHDAState, rirb_lbase),
 728     },
 729     [ ICH6_REG_RIRBUBASE ] = {
 730         .name     = "RIRBUBASE",
 731         .size     = 4,
 732         .wmask    = 0xffffffff,
 733         .offset   = offsetof(IntelHDAState, rirb_ubase),
 734     },
 735     [ ICH6_REG_RIRBWP ] = {
 736         .name     = "RIRBWP",
 737         .size     = 2,
 738         .wmask    = 0x8000,
 739         .offset   = offsetof(IntelHDAState, rirb_wp),
 740         .whandler = intel_hda_set_rirb_wp,
 741     },
 742     [ ICH6_REG_RINTCNT ] = {
 743         .name     = "RINTCNT",
 744         .size     = 2,
 745         .wmask    = 0xff,
 746         .offset   = offsetof(IntelHDAState, rirb_cnt),
 747     },
 748     [ ICH6_REG_RIRBCTL ] = {
 749         .name     = "RIRBCTL",
 750         .size     = 1,
 751         .wmask    = 0x07,
 752         .offset   = offsetof(IntelHDAState, rirb_ctl),
 753     },
 754     [ ICH6_REG_RIRBSTS ] = {
 755         .name     = "RIRBSTS",
 756         .size     = 1,
 757         .wmask    = 0x05,
 758         .wclear   = 0x05,
 759         .offset   = offsetof(IntelHDAState, rirb_sts),
 760         .whandler = intel_hda_set_rirb_sts,
 761     },
 762     [ ICH6_REG_RIRBSIZE ] = {
 763         .name     = "RIRBSIZE",
 764         .size     = 1,
 765         .reset    = 0x42,
 766         .offset   = offsetof(IntelHDAState, rirb_size),
 767     },
 768
 769     [ ICH6_REG_DPLBASE ] = {
 770         .name     = "DPLBASE",
 771         .size     = 4,
 772         .wmask    = 0xffffff81,
 773         .offset   = offsetof(IntelHDAState, dp_lbase),
 774     },
 775     [ ICH6_REG_DPUBASE ] = {
 776         .name     = "DPUBASE",
 777         .size     = 4,
 778         .wmask    = 0xffffffff,
 779         .offset   = offsetof(IntelHDAState, dp_ubase),
 780     },
 781
 782     [ ICH6_REG_IC ] = {
 783         .name     = "ICW",
 784         .size     = 4,
 785         .wmask    = 0xffffffff,
 786         .offset   = offsetof(IntelHDAState, icw),
 787     },
 788     [ ICH6_REG_IR ] = {
 789         .name     = "IRR",
 790         .size     = 4,
 791         .offset   = offsetof(IntelHDAState, irr),
 792     },
 793     [ ICH6_REG_IRS ] = {
 794         .name     = "ICS",
 795         .size     = 2,
 796         .wmask    = 0x0003,
 797         .wclear   = 0x0002,
 798         .offset   = offsetof(IntelHDAState, ics),
 799         .whandler = intel_hda_set_ics,
 800     },
 801
 802 #define HDA_STREAM(_t, _i)                                            \
 803     [ ST_REG(_i, ICH6_REG_SD_CTL) ] = {                               \
 804         .stream   = _i,                                               \
 805         .name     = _t stringify(_i) " CTL",                          \
 806         .size     = 4,                                                \
 807         .wmask    = 0x1cff001f,                                       \
 808         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
 809         .whandler = intel_hda_set_st_ctl,                             \
 810     },                                                                \
 811     [ ST_REG(_i, ICH6_REG_SD_CTL) + 2] = {                            \
 812         .stream   = _i,                                               \
 813         .name     = _t stringify(_i) " CTL(stnr)",                    \
 814         .size     = 1,                                                \
 815         .shift    = 16,                                               \
 816         .wmask    = 0x00ff0000,                                       \
 817         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
 818         .whandler = intel_hda_set_st_ctl,                             \
 819     },                                                                \
 820     [ ST_REG(_i, ICH6_REG_SD_STS)] = {                                \
 821         .stream   = _i,                                               \
 822         .name     = _t stringify(_i) " CTL(sts)",                     \
 823         .size     = 1,                                                \
 824         .shift    = 24,                                               \
 825         .wmask    = 0x1c000000,                                       \
 826         .wclear   = 0x1c000000,                                       \
 827         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
 828         .whandler = intel_hda_set_st_ctl,                             \
 829     },                                                                \
 830     [ ST_REG(_i, ICH6_REG_SD_LPIB) ] = {                              \
 831         .stream   = _i,                                               \
 832         .name     = _t stringify(_i) " LPIB",                         \
 833         .size     = 4,                                                \
 834         .offset   = offsetof(IntelHDAState, st[_i].lpib),             \
 835     },                                                                \
 836     [ ST_REG(_i, ICH6_REG_SD_LPIB) + 0x2000 ] = {                     \
 837         .stream   = _i,                                               \
 838         .name     = _t stringify(_i) " LPIB(alias)",                  \
 839         .size     = 4,                                                \
 840         .offset   = offsetof(IntelHDAState, st[_i].lpib),             \
 841     },                                                                \
 842     [ ST_REG(_i, ICH6_REG_SD_CBL) ] = {                               \
 843         .stream   = _i,                                               \
 844         .name     = _t stringify(_i) " CBL",                          \
 845         .size     = 4,                                                \
 846         .wmask    = 0xffffffff,                                       \
 847         .offset   = offsetof(IntelHDAState, st[_i].cbl),              \
 848     },                                                                \
 849     [ ST_REG(_i, ICH6_REG_SD_LVI) ] = {                               \
 850         .stream   = _i,                                               \
 851         .name     = _t stringify(_i) " LVI",                          \
 852         .size     = 2,                                                \
 853         .wmask    = 0x00ff,                                           \
 854         .offset   = offsetof(IntelHDAState, st[_i].lvi),              \
 855     },                                                                \
 856     [ ST_REG(_i, ICH6_REG_SD_FIFOSIZE) ] = {                          \
 857         .stream   = _i,                                               \
 858         .name     = _t stringify(_i) " FIFOS",                        \
 859         .size     = 2,                                                \
 860         .reset    = HDA_BUFFER_SIZE,                                  \
 861     },                                                                \
 862     [ ST_REG(_i, ICH6_REG_SD_FORMAT) ] = {                            \
 863         .stream   = _i,                                               \
 864         .name     = _t stringify(_i) " FMT",                          \
 865         .size     = 2,                                                \
 866         .wmask    = 0x7f7f,                                           \
 867         .offset   = offsetof(IntelHDAState, st[_i].fmt),              \
 868     },                                                                \
 869     [ ST_REG(_i, ICH6_REG_SD_BDLPL) ] = {                             \
 870         .stream   = _i,                                               \
 871         .name     = _t stringify(_i) " BDLPL",                        \
 872         .size     = 4,                                                \
 873         .wmask    = 0xffffff80,                                       \
 874         .offset   = offsetof(IntelHDAState, st[_i].bdlp_lbase),       \
 875     },                                                                \
 876     [ ST_REG(_i, ICH6_REG_SD_BDLPU) ] = {                             \
 877         .stream   = _i,                                               \
 878         .name     = _t stringify(_i) " BDLPU",                        \
 879         .size     = 4,                                                \
 880         .wmask    = 0xffffffff,                                       \
 881         .offset   = offsetof(IntelHDAState, st[_i].bdlp_ubase),       \
 882     },                                                                \
 883
 884     HDA_STREAM("IN", 0)
 885     HDA_STREAM("IN", 1)
 886     HDA_STREAM("IN", 2)
 887     HDA_STREAM("IN", 3)
 888
 889     HDA_STREAM("OUT", 4)
 890     HDA_STREAM("OUT", 5)
 891     HDA_STREAM("OUT", 6)
 892     HDA_STREAM("OUT", 7)
 893
 894 };
 895
 896 static const IntelHDAReg *intel_hda_reg_find(IntelHDAState *d, target_phys_addr_t addr)
 897 {
 898     const IntelHDAReg *reg;
 899
 900     if (addr >= sizeof(regtab)/sizeof(regtab[0])) {
 901         goto noreg;
 902     }
 903     reg = regtab+addr;
 904     if (reg->name == NULL) {
 905         goto noreg;
 906     }
 907     return reg;
 908
 909 noreg:
 910     dprint(d, 1, "unknown register, addr 0x%x\n", (int) addr);
 911     return NULL;
 912 }
 913
 914 static uint32_t *intel_hda_reg_addr(IntelHDAState *d, const IntelHDAReg *reg)
 915 {
 916     uint8_t *addr = (void*)d;
 917
 918     addr += reg->offset;
 919     return (uint32_t*)addr;
 920 }
 921
 922 static void intel_hda_reg_write(IntelHDAState *d, const IntelHDAReg *reg, uint32_t val,
 923                                 uint32_t wmask)
 924 {
 925     uint32_t *addr;
 926     uint32_t old;
 927
 928     if (!reg) {
 929         return;
 930     }
 931
 932     if (d->debug) {
 933         time_t now = time(NULL);
 934         if (d->last_write && d->last_reg == reg && d->last_val == val) {
 935             d->repeat_count++;
 936             if (d->last_sec != now) {
 937                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
 938                 d->last_sec = now;
 939                 d->repeat_count = 0;
 940             }
 941         } else {
 942             if (d->repeat_count) {
 943                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
 944             }
 945             dprint(d, 2, "write %-16s: 0x%x (%x)\n", reg->name, val, wmask);
 946             d->last_write = 1;
 947             d->last_reg   = reg;
 948             d->last_val   = val;
 949             d->last_sec   = now;
 950             d->repeat_count = 0;
 951         }
 952     }
 953     assert(reg->offset != 0);
 954
 955     addr = intel_hda_reg_addr(d, reg);
 956     old = *addr;
 957
 958     if (reg->shift) {
 959         val <<= reg->shift;
 960         wmask <<= reg->shift;
 961     }
 962     wmask &= reg->wmask;
 963     *addr &= ~wmask;
 964     *addr |= wmask & val;
 965     *addr &= ~(val & reg->wclear);
 966
 967     if (reg->whandler) {
 968         reg->whandler(d, reg, old);
 969     }
 970 }
 971
 972 static uint32_t intel_hda_reg_read(IntelHDAState *d, const IntelHDAReg *reg,
 973                                    uint32_t rmask)
 974 {
 975     uint32_t *addr, ret;
 976
 977     if (!reg) {
 978         return 0;
 979     }
 980
 981     if (reg->rhandler) {
 982         reg->rhandler(d, reg);
 983     }
 984
 985     if (reg->offset == 0) {
 986         /* constant read-only register */
 987         ret = reg->reset;
 988     } else {
 989         addr = intel_hda_reg_addr(d, reg);
 990         ret = *addr;
 991         if (reg->shift) {
 992             ret >>= reg->shift;
 993         }
 994         ret &= rmask;
 995     }
 996     if (d->debug) {
 997         time_t now = time(NULL);
 998         if (!d->last_write && d->last_reg == reg && d->last_val == ret) {
 999             d->repeat_count++;
1000             if (d->last_sec != now) {
1001                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1002                 d->last_sec = now;
1003                 d->repeat_count = 0;
1004             }
1005         } else {
1006             if (d->repeat_count) {
1007                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1008             }
1009             dprint(d, 2, "read  %-16s: 0x%x (%x)\n", reg->name, ret, rmask);
1010             d->last_write = 0;
1011             d->last_reg   = reg;
1012             d->last_val   = ret;
1013             d->last_sec   = now;
1014             d->repeat_count = 0;
1015         }
1016     }
1017     return ret;
1018 }
1019
1020 static void intel_hda_regs_reset(IntelHDAState *d)
1021 {
1022     uint32_t *addr;
1023     int i;
1024
1025     for (i = 0; i < sizeof(regtab)/sizeof(regtab[0]); i++) {
1026         if (regtab[i].name == NULL) {
1027             continue;
1028         }
1029         if (regtab[i].offset == 0) {
1030             continue;
1031         }
1032         addr = intel_hda_reg_addr(d, regtab + i);
1033         *addr = regtab[i].reset;
1034     }
1035 }
1036
1037 /* --------------------------------------------------------------------- */
1038
1039 static void intel_hda_mmio_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
1040 {
1041     IntelHDAState *d = opaque;
1042     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1043
1044     intel_hda_reg_write(d, reg, val, 0xff);
1045 }
1046
1047 static void intel_hda_mmio_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
1048 {
1049     IntelHDAState *d = opaque;
1050     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1051
1052     intel_hda_reg_write(d, reg, val, 0xffff);
1053 }
1054
1055 static void intel_hda_mmio_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
1056 {
1057     IntelHDAState *d = opaque;
1058     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1059
1060     intel_hda_reg_write(d, reg, val, 0xffffffff);
1061 }
1062
1063 static uint32_t intel_hda_mmio_readb(void *opaque, target_phys_addr_t addr)
1064 {
1065     IntelHDAState *d = opaque;
1066     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1067
1068     return intel_hda_reg_read(d, reg, 0xff);
1069 }
1070
1071 static uint32_t intel_hda_mmio_readw(void *opaque, target_phys_addr_t addr)
1072 {
1073     IntelHDAState *d = opaque;
1074     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1075
1076     return intel_hda_reg_read(d, reg, 0xffff);
1077 }
1078
1079 static uint32_t intel_hda_mmio_readl(void *opaque, target_phys_addr_t addr)
1080 {
1081     IntelHDAState *d = opaque;
1082     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1083
1084     return intel_hda_reg_read(d, reg, 0xffffffff);
1085 }
1086
1087 static const MemoryRegionOps intel_hda_mmio_ops = {
1088     .old_mmio = {
1089         .read = {
1090             intel_hda_mmio_readb,
1091             intel_hda_mmio_readw,
1092             intel_hda_mmio_readl,
1093         },
1094         .write = {
1095             intel_hda_mmio_writeb,
1096             intel_hda_mmio_writew,
1097             intel_hda_mmio_writel,
1098         },
1099     },
1100     .endianness = DEVICE_NATIVE_ENDIAN,
1101 };
1102
1103 /* --------------------------------------------------------------------- */
1104
1105 static void intel_hda_reset(DeviceState *dev)
1106 {
1107     IntelHDAState *d = DO_UPCAST(IntelHDAState, pci.qdev, dev);
1108     DeviceState *qdev;
1109     HDACodecDevice *cdev;
1110
1111     intel_hda_regs_reset(d);
1112     d->wall_base_ns = qemu_get_clock_ns(vm_clock);
1113
1114     /* reset codecs */
1115     QLIST_FOREACH(qdev, &d->codecs.qbus.children, sibling) {
1116         cdev = DO_UPCAST(HDACodecDevice, qdev, qdev);
1117         if (qdev->info->reset) {
1118             qdev->info->reset(qdev);
1119         }
1120         d->state_sts |= (1 << cdev->cad);
1121     }
1122     intel_hda_update_irq(d);
1123 }
1124
1125 static int intel_hda_init(PCIDevice *pci)
1126 {
1127     IntelHDAState *d = DO_UPCAST(IntelHDAState, pci, pci);
1128     uint8_t *conf = d->pci.config;
1129
1130     d->name = d->pci.qdev.info->name;
1131
1132     pci_config_set_interrupt_pin(conf, 1);
1133
1134     /* HDCTL off 0x40 bit 0 selects signaling mode (1-HDA, 0 - Ac97) 18.1.19 */
1135     conf[0x40] = 0x01;
1136
1137     memory_region_init_io(&d->mmio, &intel_hda_mmio_ops, d,
1138                           "intel-hda", 0x4000);
1139     pci_register_bar(&d->pci, 0, 0, &d->mmio);
1140     if (d->msi) {
1141         msi_init(&d->pci, 0x50, 1, true, false);
1142     }
1143
1144     hda_codec_bus_init(&d->pci.qdev, &d->codecs,
1145                        intel_hda_response, intel_hda_xfer);
1146
1147     return 0;
1148 }
1149
1150 static int intel_hda_exit(PCIDevice *pci)
1151 {
1152     IntelHDAState *d = DO_UPCAST(IntelHDAState, pci, pci);
1153
1154     msi_uninit(&d->pci);
1155     memory_region_destroy(&d->mmio);
1156     return 0;
1157 }
1158
1159 static void intel_hda_write_config(PCIDevice *pci, uint32_t addr,
1160                                    uint32_t val, int len)
1161 {
1162     IntelHDAState *d = DO_UPCAST(IntelHDAState, pci, pci);
1163
1164     pci_default_write_config(pci, addr, val, len);
1165     if (d->msi) {
1166         msi_write_config(pci, addr, val, len);
1167     }
1168 }
1169
1170 static int intel_hda_post_load(void *opaque, int version)
1171 {
1172     IntelHDAState* d = opaque;
1173     int i;
1174
1175     dprint(d, 1, "%s\n", __FUNCTION__);
1176     for (i = 0; i < ARRAY_SIZE(d->st); i++) {
1177         if (d->st[i].ctl & 0x02) {
1178             intel_hda_parse_bdl(d, &d->st[i]);
1179         }
1180     }
1181     intel_hda_update_irq(d);
1182     return 0;
1183 }
1184
1185 static const VMStateDescription vmstate_intel_hda_stream = {
1186     .name = "intel-hda-stream",
1187     .version_id = 1,
1188     .fields = (VMStateField []) {
1189         VMSTATE_UINT32(ctl, IntelHDAStream),
1190         VMSTATE_UINT32(lpib, IntelHDAStream),
1191         VMSTATE_UINT32(cbl, IntelHDAStream),
1192         VMSTATE_UINT32(lvi, IntelHDAStream),
1193         VMSTATE_UINT32(fmt, IntelHDAStream),
1194         VMSTATE_UINT32(bdlp_lbase, IntelHDAStream),
1195         VMSTATE_UINT32(bdlp_ubase, IntelHDAStream),
1196         VMSTATE_END_OF_LIST()
1197     }
1198 };
1199
1200 static const VMStateDescription vmstate_intel_hda = {
1201     .name = "intel-hda",
1202     .version_id = 1,
1203     .post_load = intel_hda_post_load,
1204     .fields = (VMStateField []) {
1205         VMSTATE_PCI_DEVICE(pci, IntelHDAState),
1206
1207         /* registers */
1208         VMSTATE_UINT32(g_ctl, IntelHDAState),
1209         VMSTATE_UINT32(wake_en, IntelHDAState),
1210         VMSTATE_UINT32(state_sts, IntelHDAState),
1211         VMSTATE_UINT32(int_ctl, IntelHDAState),
1212         VMSTATE_UINT32(int_sts, IntelHDAState),
1213         VMSTATE_UINT32(wall_clk, IntelHDAState),
1214         VMSTATE_UINT32(corb_lbase, IntelHDAState),
1215         VMSTATE_UINT32(corb_ubase, IntelHDAState),
1216         VMSTATE_UINT32(corb_rp, IntelHDAState),
1217         VMSTATE_UINT32(corb_wp, IntelHDAState),
1218         VMSTATE_UINT32(corb_ctl, IntelHDAState),
1219         VMSTATE_UINT32(corb_sts, IntelHDAState),
1220         VMSTATE_UINT32(corb_size, IntelHDAState),
1221         VMSTATE_UINT32(rirb_lbase, IntelHDAState),
1222         VMSTATE_UINT32(rirb_ubase, IntelHDAState),
1223         VMSTATE_UINT32(rirb_wp, IntelHDAState),
1224         VMSTATE_UINT32(rirb_cnt, IntelHDAState),
1225         VMSTATE_UINT32(rirb_ctl, IntelHDAState),
1226         VMSTATE_UINT32(rirb_sts, IntelHDAState),
1227         VMSTATE_UINT32(rirb_size, IntelHDAState),
1228         VMSTATE_UINT32(dp_lbase, IntelHDAState),
1229         VMSTATE_UINT32(dp_ubase, IntelHDAState),
1230         VMSTATE_UINT32(icw, IntelHDAState),
1231         VMSTATE_UINT32(irr, IntelHDAState),
1232         VMSTATE_UINT32(ics, IntelHDAState),
1233         VMSTATE_STRUCT_ARRAY(st, IntelHDAState, 8, 0,
1234                              vmstate_intel_hda_stream,
1235                              IntelHDAStream),
1236
1237         /* additional state info */
1238         VMSTATE_UINT32(rirb_count, IntelHDAState),
1239         VMSTATE_INT64(wall_base_ns, IntelHDAState),
1240
1241         VMSTATE_END_OF_LIST()
1242     }
1243 };
1244
1245 static PCIDeviceInfo intel_hda_info = {
1246     .qdev.name    = "intel-hda",
1247     .qdev.desc    = "Intel HD Audio Controller",
1248     .qdev.size    = sizeof(IntelHDAState),
1249     .qdev.vmsd    = &vmstate_intel_hda,
1250     .qdev.reset   = intel_hda_reset,
1251     .init         = intel_hda_init,
1252     .exit         = intel_hda_exit,
1253     .config_write = intel_hda_write_config,
1254     .vendor_id    = PCI_VENDOR_ID_INTEL,
1255     .device_id    = 0x2668,
1256     .revision     = 1,
1257     .class_id     = PCI_CLASS_MULTIMEDIA_HD_AUDIO,
1258     .qdev.props   = (Property[]) {
1259         DEFINE_PROP_UINT32("debug", IntelHDAState, debug, 0),
1260         DEFINE_PROP_UINT32("msi", IntelHDAState, msi, 1),
1261         DEFINE_PROP_END_OF_LIST(),
1262     }
1263 };
1264
1265 static void intel_hda_register(void)
1266 {
1267     pci_qdev_register(&intel_hda_info);
1268 }
1269 device_init(intel_hda_register);
1270
1271 /*
1272  * create intel hda controller with codec attached to it,
1273  * so '-soundhw hda' works.
1274  */
1275 int intel_hda_and_codec_init(PCIBus *bus)
1276 {
1277     PCIDevice *controller;
1278     BusState *hdabus;
1279     DeviceState *codec;
1280
1281     controller = pci_create_simple(bus, -1, "intel-hda");
1282     hdabus = QLIST_FIRST(&controller->qdev.child_bus);
1283     codec = qdev_create(hdabus, "hda-duplex");
1284     qdev_init_nofail(codec);
1285     return 0;
1286 }
1287