xref: /qemu/hw/audio/intel-hda.c (revision 138ca49a82b978f035b709abee45324dd7ab3e68)
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 "qemu/osdep.h"
21  #include "hw/pci/pci.h"
22  #include "hw/qdev-properties.h"
23  #include "hw/pci/msi.h"
24  #include "qemu/timer.h"
25  #include "qemu/bitops.h"
26  #include "qemu/log.h"
27  #include "qemu/module.h"
28  #include "qemu/error-report.h"
29  #include "hw/audio/soundhw.h"
30  #include "intel-hda.h"
31  #include "migration/vmstate.h"
32  #include "intel-hda-defs.h"
33  #include "sysemu/dma.h"
34  #include "qapi/error.h"
35  #include "qom/object.h"
36  
37  /* --------------------------------------------------------------------- */
38  /* hda bus                                                               */
39  
40  static Property hda_props[] = {
41      DEFINE_PROP_UINT32("cad", HDACodecDevice, cad, -1),
42      DEFINE_PROP_END_OF_LIST()
43  };
44  
45  static const TypeInfo hda_codec_bus_info = {
46      .name = TYPE_HDA_BUS,
47      .parent = TYPE_BUS,
48      .instance_size = sizeof(HDACodecBus),
49  };
50  
51  void hda_codec_bus_init(DeviceState *dev, HDACodecBus *bus, size_t bus_size,
52                          hda_codec_response_func response,
53                          hda_codec_xfer_func xfer)
54  {
55      qbus_create_inplace(bus, bus_size, TYPE_HDA_BUS, dev, NULL);
56      bus->response = response;
57      bus->xfer = xfer;
58  }
59  
60  static void hda_codec_dev_realize(DeviceState *qdev, Error **errp)
61  {
62      HDACodecBus *bus = HDA_BUS(qdev->parent_bus);
63      HDACodecDevice *dev = HDA_CODEC_DEVICE(qdev);
64      HDACodecDeviceClass *cdc = HDA_CODEC_DEVICE_GET_CLASS(dev);
65  
66      if (dev->cad == -1) {
67          dev->cad = bus->next_cad;
68      }
69      if (dev->cad >= 15) {
70          error_setg(errp, "HDA audio codec address is full");
71          return;
72      }
73      bus->next_cad = dev->cad + 1;
74      if (cdc->init(dev) != 0) {
75          error_setg(errp, "HDA audio init failed");
76      }
77  }
78  
79  static void hda_codec_dev_unrealize(DeviceState *qdev)
80  {
81      HDACodecDevice *dev = HDA_CODEC_DEVICE(qdev);
82      HDACodecDeviceClass *cdc = HDA_CODEC_DEVICE_GET_CLASS(dev);
83  
84      if (cdc->exit) {
85          cdc->exit(dev);
86      }
87  }
88  
89  HDACodecDevice *hda_codec_find(HDACodecBus *bus, uint32_t cad)
90  {
91      BusChild *kid;
92      HDACodecDevice *cdev;
93  
94      QTAILQ_FOREACH(kid, &bus->qbus.children, sibling) {
95          DeviceState *qdev = kid->child;
96          cdev = HDA_CODEC_DEVICE(qdev);
97          if (cdev->cad == cad) {
98              return cdev;
99          }
100      }
101      return NULL;
102  }
103  
104  void hda_codec_response(HDACodecDevice *dev, bool solicited, uint32_t response)
105  {
106      HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
107      bus->response(dev, solicited, response);
108  }
109  
110  bool hda_codec_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
111                      uint8_t *buf, uint32_t len)
112  {
113      HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
114      return bus->xfer(dev, stnr, output, buf, len);
115  }
116  
117  /* --------------------------------------------------------------------- */
118  /* intel hda emulation                                                   */
119  
120  typedef struct IntelHDAStream IntelHDAStream;
121  typedef struct IntelHDAState IntelHDAState;
122  typedef struct IntelHDAReg IntelHDAReg;
123  
124  typedef struct bpl {
125      uint64_t addr;
126      uint32_t len;
127      uint32_t flags;
128  } bpl;
129  
130  struct IntelHDAStream {
131      /* registers */
132      uint32_t ctl;
133      uint32_t lpib;
134      uint32_t cbl;
135      uint32_t lvi;
136      uint32_t fmt;
137      uint32_t bdlp_lbase;
138      uint32_t bdlp_ubase;
139  
140      /* state */
141      bpl      *bpl;
142      uint32_t bentries;
143      uint32_t bsize, be, bp;
144  };
145  
146  struct IntelHDAState {
147      PCIDevice pci;
148      const char *name;
149      HDACodecBus codecs;
150  
151      /* registers */
152      uint32_t g_ctl;
153      uint32_t wake_en;
154      uint32_t state_sts;
155      uint32_t int_ctl;
156      uint32_t int_sts;
157      uint32_t wall_clk;
158  
159      uint32_t corb_lbase;
160      uint32_t corb_ubase;
161      uint32_t corb_rp;
162      uint32_t corb_wp;
163      uint32_t corb_ctl;
164      uint32_t corb_sts;
165      uint32_t corb_size;
166  
167      uint32_t rirb_lbase;
168      uint32_t rirb_ubase;
169      uint32_t rirb_wp;
170      uint32_t rirb_cnt;
171      uint32_t rirb_ctl;
172      uint32_t rirb_sts;
173      uint32_t rirb_size;
174  
175      uint32_t dp_lbase;
176      uint32_t dp_ubase;
177  
178      uint32_t icw;
179      uint32_t irr;
180      uint32_t ics;
181  
182      /* streams */
183      IntelHDAStream st[8];
184  
185      /* state */
186      MemoryRegion container;
187      MemoryRegion mmio;
188      MemoryRegion alias;
189      uint32_t rirb_count;
190      int64_t wall_base_ns;
191  
192      /* debug logging */
193      const IntelHDAReg *last_reg;
194      uint32_t last_val;
195      uint32_t last_write;
196      uint32_t last_sec;
197      uint32_t repeat_count;
198  
199      /* properties */
200      uint32_t debug;
201      OnOffAuto msi;
202      bool old_msi_addr;
203  };
204  
205  #define TYPE_INTEL_HDA_GENERIC "intel-hda-generic"
206  
207  DECLARE_INSTANCE_CHECKER(IntelHDAState, INTEL_HDA,
208                           TYPE_INTEL_HDA_GENERIC)
209  
210  struct IntelHDAReg {
211      const char *name;      /* register name */
212      uint32_t   size;       /* size in bytes */
213      uint32_t   reset;      /* reset value */
214      uint32_t   wmask;      /* write mask */
215      uint32_t   wclear;     /* write 1 to clear bits */
216      uint32_t   offset;     /* location in IntelHDAState */
217      uint32_t   shift;      /* byte access entries for dwords */
218      uint32_t   stream;
219      void       (*whandler)(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old);
220      void       (*rhandler)(IntelHDAState *d, const IntelHDAReg *reg);
221  };
222  
223  static void intel_hda_reset(DeviceState *dev);
224  
225  /* --------------------------------------------------------------------- */
226  
227  static hwaddr intel_hda_addr(uint32_t lbase, uint32_t ubase)
228  {
229      return ((uint64_t)ubase << 32) | lbase;
230  }
231  
232  static void intel_hda_update_int_sts(IntelHDAState *d)
233  {
234      uint32_t sts = 0;
235      uint32_t i;
236  
237      /* update controller status */
238      if (d->rirb_sts & ICH6_RBSTS_IRQ) {
239          sts |= (1 << 30);
240      }
241      if (d->rirb_sts & ICH6_RBSTS_OVERRUN) {
242          sts |= (1 << 30);
243      }
244      if (d->state_sts & d->wake_en) {
245          sts |= (1 << 30);
246      }
247  
248      /* update stream status */
249      for (i = 0; i < 8; i++) {
250          /* buffer completion interrupt */
251          if (d->st[i].ctl & (1 << 26)) {
252              sts |= (1 << i);
253          }
254      }
255  
256      /* update global status */
257      if (sts & d->int_ctl) {
258          sts |= (1U << 31);
259      }
260  
261      d->int_sts = sts;
262  }
263  
264  static void intel_hda_update_irq(IntelHDAState *d)
265  {
266      bool msi = msi_enabled(&d->pci);
267      int level;
268  
269      intel_hda_update_int_sts(d);
270      if (d->int_sts & (1U << 31) && d->int_ctl & (1U << 31)) {
271          level = 1;
272      } else {
273          level = 0;
274      }
275      dprint(d, 2, "%s: level %d [%s]\n", __func__,
276             level, msi ? "msi" : "intx");
277      if (msi) {
278          if (level) {
279              msi_notify(&d->pci, 0);
280          }
281      } else {
282          pci_set_irq(&d->pci, level);
283      }
284  }
285  
286  static int intel_hda_send_command(IntelHDAState *d, uint32_t verb)
287  {
288      uint32_t cad, nid, data;
289      HDACodecDevice *codec;
290      HDACodecDeviceClass *cdc;
291  
292      cad = (verb >> 28) & 0x0f;
293      if (verb & (1 << 27)) {
294          /* indirect node addressing, not specified in HDA 1.0 */
295          dprint(d, 1, "%s: indirect node addressing (guest bug?)\n", __func__);
296          return -1;
297      }
298      nid = (verb >> 20) & 0x7f;
299      data = verb & 0xfffff;
300  
301      codec = hda_codec_find(&d->codecs, cad);
302      if (codec == NULL) {
303          dprint(d, 1, "%s: addressed non-existing codec\n", __func__);
304          return -1;
305      }
306      cdc = HDA_CODEC_DEVICE_GET_CLASS(codec);
307      cdc->command(codec, nid, data);
308      return 0;
309  }
310  
311  static void intel_hda_corb_run(IntelHDAState *d)
312  {
313      hwaddr addr;
314      uint32_t rp, verb;
315  
316      if (d->ics & ICH6_IRS_BUSY) {
317          dprint(d, 2, "%s: [icw] verb 0x%08x\n", __func__, d->icw);
318          intel_hda_send_command(d, d->icw);
319          return;
320      }
321  
322      for (;;) {
323          if (!(d->corb_ctl & ICH6_CORBCTL_RUN)) {
324              dprint(d, 2, "%s: !run\n", __func__);
325              return;
326          }
327          if ((d->corb_rp & 0xff) == d->corb_wp) {
328              dprint(d, 2, "%s: corb ring empty\n", __func__);
329              return;
330          }
331          if (d->rirb_count == d->rirb_cnt) {
332              dprint(d, 2, "%s: rirb count reached\n", __func__);
333              return;
334          }
335  
336          rp = (d->corb_rp + 1) & 0xff;
337          addr = intel_hda_addr(d->corb_lbase, d->corb_ubase);
338          verb = ldl_le_pci_dma(&d->pci, addr + 4*rp);
339          d->corb_rp = rp;
340  
341          dprint(d, 2, "%s: [rp 0x%x] verb 0x%08x\n", __func__, rp, verb);
342          intel_hda_send_command(d, verb);
343      }
344  }
345  
346  static void intel_hda_response(HDACodecDevice *dev, bool solicited, uint32_t response)
347  {
348      HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
349      IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
350      hwaddr addr;
351      uint32_t wp, ex;
352  
353      if (d->ics & ICH6_IRS_BUSY) {
354          dprint(d, 2, "%s: [irr] response 0x%x, cad 0x%x\n",
355                 __func__, response, dev->cad);
356          d->irr = response;
357          d->ics &= ~(ICH6_IRS_BUSY | 0xf0);
358          d->ics |= (ICH6_IRS_VALID | (dev->cad << 4));
359          return;
360      }
361  
362      if (!(d->rirb_ctl & ICH6_RBCTL_DMA_EN)) {
363          dprint(d, 1, "%s: rirb dma disabled, drop codec response\n", __func__);
364          return;
365      }
366  
367      ex = (solicited ? 0 : (1 << 4)) | dev->cad;
368      wp = (d->rirb_wp + 1) & 0xff;
369      addr = intel_hda_addr(d->rirb_lbase, d->rirb_ubase);
370      stl_le_pci_dma(&d->pci, addr + 8*wp, response);
371      stl_le_pci_dma(&d->pci, addr + 8*wp + 4, ex);
372      d->rirb_wp = wp;
373  
374      dprint(d, 2, "%s: [wp 0x%x] response 0x%x, extra 0x%x\n",
375             __func__, wp, response, ex);
376  
377      d->rirb_count++;
378      if (d->rirb_count == d->rirb_cnt) {
379          dprint(d, 2, "%s: rirb count reached (%d)\n", __func__, d->rirb_count);
380          if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
381              d->rirb_sts |= ICH6_RBSTS_IRQ;
382              intel_hda_update_irq(d);
383          }
384      } else if ((d->corb_rp & 0xff) == d->corb_wp) {
385          dprint(d, 2, "%s: corb ring empty (%d/%d)\n", __func__,
386                 d->rirb_count, d->rirb_cnt);
387          if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
388              d->rirb_sts |= ICH6_RBSTS_IRQ;
389              intel_hda_update_irq(d);
390          }
391      }
392  }
393  
394  static bool intel_hda_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
395                             uint8_t *buf, uint32_t len)
396  {
397      HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
398      IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
399      hwaddr addr;
400      uint32_t s, copy, left;
401      IntelHDAStream *st;
402      bool irq = false;
403  
404      st = output ? d->st + 4 : d->st;
405      for (s = 0; s < 4; s++) {
406          if (stnr == ((st[s].ctl >> 20) & 0x0f)) {
407              st = st + s;
408              break;
409          }
410      }
411      if (s == 4) {
412          return false;
413      }
414      if (st->bpl == NULL) {
415          return false;
416      }
417  
418      left = len;
419      s = st->bentries;
420      while (left > 0 && s-- > 0) {
421          copy = left;
422          if (copy > st->bsize - st->lpib)
423              copy = st->bsize - st->lpib;
424          if (copy > st->bpl[st->be].len - st->bp)
425              copy = st->bpl[st->be].len - st->bp;
426  
427          dprint(d, 3, "dma: entry %d, pos %d/%d, copy %d\n",
428                 st->be, st->bp, st->bpl[st->be].len, copy);
429  
430          pci_dma_rw(&d->pci, st->bpl[st->be].addr + st->bp, buf, copy, !output);
431          st->lpib += copy;
432          st->bp += copy;
433          buf += copy;
434          left -= copy;
435  
436          if (st->bpl[st->be].len == st->bp) {
437              /* bpl entry filled */
438              if (st->bpl[st->be].flags & 0x01) {
439                  irq = true;
440              }
441              st->bp = 0;
442              st->be++;
443              if (st->be == st->bentries) {
444                  /* bpl wrap around */
445                  st->be = 0;
446                  st->lpib = 0;
447              }
448          }
449      }
450      if (d->dp_lbase & 0x01) {
451          s = st - d->st;
452          addr = intel_hda_addr(d->dp_lbase & ~0x01, d->dp_ubase);
453          stl_le_pci_dma(&d->pci, addr + 8*s, st->lpib);
454      }
455      dprint(d, 3, "dma: --\n");
456  
457      if (irq) {
458          st->ctl |= (1 << 26); /* buffer completion interrupt */
459          intel_hda_update_irq(d);
460      }
461      return true;
462  }
463  
464  static void intel_hda_parse_bdl(IntelHDAState *d, IntelHDAStream *st)
465  {
466      hwaddr addr;
467      uint8_t buf[16];
468      uint32_t i;
469  
470      addr = intel_hda_addr(st->bdlp_lbase, st->bdlp_ubase);
471      st->bentries = st->lvi +1;
472      g_free(st->bpl);
473      st->bpl = g_malloc(sizeof(bpl) * st->bentries);
474      for (i = 0; i < st->bentries; i++, addr += 16) {
475          pci_dma_read(&d->pci, addr, buf, 16);
476          st->bpl[i].addr  = le64_to_cpu(*(uint64_t *)buf);
477          st->bpl[i].len   = le32_to_cpu(*(uint32_t *)(buf + 8));
478          st->bpl[i].flags = le32_to_cpu(*(uint32_t *)(buf + 12));
479          dprint(d, 1, "bdl/%d: 0x%" PRIx64 " +0x%x, 0x%x\n",
480                 i, st->bpl[i].addr, st->bpl[i].len, st->bpl[i].flags);
481      }
482  
483      st->bsize = st->cbl;
484      st->lpib  = 0;
485      st->be    = 0;
486      st->bp    = 0;
487  }
488  
489  static void intel_hda_notify_codecs(IntelHDAState *d, uint32_t stream, bool running, bool output)
490  {
491      BusChild *kid;
492      HDACodecDevice *cdev;
493  
494      QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
495          DeviceState *qdev = kid->child;
496          HDACodecDeviceClass *cdc;
497  
498          cdev = HDA_CODEC_DEVICE(qdev);
499          cdc = HDA_CODEC_DEVICE_GET_CLASS(cdev);
500          if (cdc->stream) {
501              cdc->stream(cdev, stream, running, output);
502          }
503      }
504  }
505  
506  /* --------------------------------------------------------------------- */
507  
508  static void intel_hda_set_g_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
509  {
510      if ((d->g_ctl & ICH6_GCTL_RESET) == 0) {
511          intel_hda_reset(DEVICE(d));
512      }
513  }
514  
515  static void intel_hda_set_wake_en(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
516  {
517      intel_hda_update_irq(d);
518  }
519  
520  static void intel_hda_set_state_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
521  {
522      intel_hda_update_irq(d);
523  }
524  
525  static void intel_hda_set_int_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
526  {
527      intel_hda_update_irq(d);
528  }
529  
530  static void intel_hda_get_wall_clk(IntelHDAState *d, const IntelHDAReg *reg)
531  {
532      int64_t ns;
533  
534      ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - d->wall_base_ns;
535      d->wall_clk = (uint32_t)(ns * 24 / 1000);  /* 24 MHz */
536  }
537  
538  static void intel_hda_set_corb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
539  {
540      intel_hda_corb_run(d);
541  }
542  
543  static void intel_hda_set_corb_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
544  {
545      intel_hda_corb_run(d);
546  }
547  
548  static void intel_hda_set_rirb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
549  {
550      if (d->rirb_wp & ICH6_RIRBWP_RST) {
551          d->rirb_wp = 0;
552      }
553  }
554  
555  static void intel_hda_set_rirb_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
556  {
557      intel_hda_update_irq(d);
558  
559      if ((old & ICH6_RBSTS_IRQ) && !(d->rirb_sts & ICH6_RBSTS_IRQ)) {
560          /* cleared ICH6_RBSTS_IRQ */
561          d->rirb_count = 0;
562          intel_hda_corb_run(d);
563      }
564  }
565  
566  static void intel_hda_set_ics(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
567  {
568      if (d->ics & ICH6_IRS_BUSY) {
569          intel_hda_corb_run(d);
570      }
571  }
572  
573  static void intel_hda_set_st_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
574  {
575      bool output = reg->stream >= 4;
576      IntelHDAStream *st = d->st + reg->stream;
577  
578      if (st->ctl & 0x01) {
579          /* reset */
580          dprint(d, 1, "st #%d: reset\n", reg->stream);
581          st->ctl = SD_STS_FIFO_READY << 24;
582      }
583      if ((st->ctl & 0x02) != (old & 0x02)) {
584          uint32_t stnr = (st->ctl >> 20) & 0x0f;
585          /* run bit flipped */
586          if (st->ctl & 0x02) {
587              /* start */
588              dprint(d, 1, "st #%d: start %d (ring buf %d bytes)\n",
589                     reg->stream, stnr, st->cbl);
590              intel_hda_parse_bdl(d, st);
591              intel_hda_notify_codecs(d, stnr, true, output);
592          } else {
593              /* stop */
594              dprint(d, 1, "st #%d: stop %d\n", reg->stream, stnr);
595              intel_hda_notify_codecs(d, stnr, false, output);
596          }
597      }
598      intel_hda_update_irq(d);
599  }
600  
601  /* --------------------------------------------------------------------- */
602  
603  #define ST_REG(_n, _o) (0x80 + (_n) * 0x20 + (_o))
604  
605  static const struct IntelHDAReg regtab[] = {
606      /* global */
607      [ ICH6_REG_GCAP ] = {
608          .name     = "GCAP",
609          .size     = 2,
610          .reset    = 0x4401,
611      },
612      [ ICH6_REG_VMIN ] = {
613          .name     = "VMIN",
614          .size     = 1,
615      },
616      [ ICH6_REG_VMAJ ] = {
617          .name     = "VMAJ",
618          .size     = 1,
619          .reset    = 1,
620      },
621      [ ICH6_REG_OUTPAY ] = {
622          .name     = "OUTPAY",
623          .size     = 2,
624          .reset    = 0x3c,
625      },
626      [ ICH6_REG_INPAY ] = {
627          .name     = "INPAY",
628          .size     = 2,
629          .reset    = 0x1d,
630      },
631      [ ICH6_REG_GCTL ] = {
632          .name     = "GCTL",
633          .size     = 4,
634          .wmask    = 0x0103,
635          .offset   = offsetof(IntelHDAState, g_ctl),
636          .whandler = intel_hda_set_g_ctl,
637      },
638      [ ICH6_REG_WAKEEN ] = {
639          .name     = "WAKEEN",
640          .size     = 2,
641          .wmask    = 0x7fff,
642          .offset   = offsetof(IntelHDAState, wake_en),
643          .whandler = intel_hda_set_wake_en,
644      },
645      [ ICH6_REG_STATESTS ] = {
646          .name     = "STATESTS",
647          .size     = 2,
648          .wmask    = 0x7fff,
649          .wclear   = 0x7fff,
650          .offset   = offsetof(IntelHDAState, state_sts),
651          .whandler = intel_hda_set_state_sts,
652      },
653  
654      /* interrupts */
655      [ ICH6_REG_INTCTL ] = {
656          .name     = "INTCTL",
657          .size     = 4,
658          .wmask    = 0xc00000ff,
659          .offset   = offsetof(IntelHDAState, int_ctl),
660          .whandler = intel_hda_set_int_ctl,
661      },
662      [ ICH6_REG_INTSTS ] = {
663          .name     = "INTSTS",
664          .size     = 4,
665          .wmask    = 0xc00000ff,
666          .wclear   = 0xc00000ff,
667          .offset   = offsetof(IntelHDAState, int_sts),
668      },
669  
670      /* misc */
671      [ ICH6_REG_WALLCLK ] = {
672          .name     = "WALLCLK",
673          .size     = 4,
674          .offset   = offsetof(IntelHDAState, wall_clk),
675          .rhandler = intel_hda_get_wall_clk,
676      },
677  
678      /* dma engine */
679      [ ICH6_REG_CORBLBASE ] = {
680          .name     = "CORBLBASE",
681          .size     = 4,
682          .wmask    = 0xffffff80,
683          .offset   = offsetof(IntelHDAState, corb_lbase),
684      },
685      [ ICH6_REG_CORBUBASE ] = {
686          .name     = "CORBUBASE",
687          .size     = 4,
688          .wmask    = 0xffffffff,
689          .offset   = offsetof(IntelHDAState, corb_ubase),
690      },
691      [ ICH6_REG_CORBWP ] = {
692          .name     = "CORBWP",
693          .size     = 2,
694          .wmask    = 0xff,
695          .offset   = offsetof(IntelHDAState, corb_wp),
696          .whandler = intel_hda_set_corb_wp,
697      },
698      [ ICH6_REG_CORBRP ] = {
699          .name     = "CORBRP",
700          .size     = 2,
701          .wmask    = 0x80ff,
702          .offset   = offsetof(IntelHDAState, corb_rp),
703      },
704      [ ICH6_REG_CORBCTL ] = {
705          .name     = "CORBCTL",
706          .size     = 1,
707          .wmask    = 0x03,
708          .offset   = offsetof(IntelHDAState, corb_ctl),
709          .whandler = intel_hda_set_corb_ctl,
710      },
711      [ ICH6_REG_CORBSTS ] = {
712          .name     = "CORBSTS",
713          .size     = 1,
714          .wmask    = 0x01,
715          .wclear   = 0x01,
716          .offset   = offsetof(IntelHDAState, corb_sts),
717      },
718      [ ICH6_REG_CORBSIZE ] = {
719          .name     = "CORBSIZE",
720          .size     = 1,
721          .reset    = 0x42,
722          .offset   = offsetof(IntelHDAState, corb_size),
723      },
724      [ ICH6_REG_RIRBLBASE ] = {
725          .name     = "RIRBLBASE",
726          .size     = 4,
727          .wmask    = 0xffffff80,
728          .offset   = offsetof(IntelHDAState, rirb_lbase),
729      },
730      [ ICH6_REG_RIRBUBASE ] = {
731          .name     = "RIRBUBASE",
732          .size     = 4,
733          .wmask    = 0xffffffff,
734          .offset   = offsetof(IntelHDAState, rirb_ubase),
735      },
736      [ ICH6_REG_RIRBWP ] = {
737          .name     = "RIRBWP",
738          .size     = 2,
739          .wmask    = 0x8000,
740          .offset   = offsetof(IntelHDAState, rirb_wp),
741          .whandler = intel_hda_set_rirb_wp,
742      },
743      [ ICH6_REG_RINTCNT ] = {
744          .name     = "RINTCNT",
745          .size     = 2,
746          .wmask    = 0xff,
747          .offset   = offsetof(IntelHDAState, rirb_cnt),
748      },
749      [ ICH6_REG_RIRBCTL ] = {
750          .name     = "RIRBCTL",
751          .size     = 1,
752          .wmask    = 0x07,
753          .offset   = offsetof(IntelHDAState, rirb_ctl),
754      },
755      [ ICH6_REG_RIRBSTS ] = {
756          .name     = "RIRBSTS",
757          .size     = 1,
758          .wmask    = 0x05,
759          .wclear   = 0x05,
760          .offset   = offsetof(IntelHDAState, rirb_sts),
761          .whandler = intel_hda_set_rirb_sts,
762      },
763      [ ICH6_REG_RIRBSIZE ] = {
764          .name     = "RIRBSIZE",
765          .size     = 1,
766          .reset    = 0x42,
767          .offset   = offsetof(IntelHDAState, rirb_size),
768      },
769  
770      [ ICH6_REG_DPLBASE ] = {
771          .name     = "DPLBASE",
772          .size     = 4,
773          .wmask    = 0xffffff81,
774          .offset   = offsetof(IntelHDAState, dp_lbase),
775      },
776      [ ICH6_REG_DPUBASE ] = {
777          .name     = "DPUBASE",
778          .size     = 4,
779          .wmask    = 0xffffffff,
780          .offset   = offsetof(IntelHDAState, dp_ubase),
781      },
782  
783      [ ICH6_REG_IC ] = {
784          .name     = "ICW",
785          .size     = 4,
786          .wmask    = 0xffffffff,
787          .offset   = offsetof(IntelHDAState, icw),
788      },
789      [ ICH6_REG_IR ] = {
790          .name     = "IRR",
791          .size     = 4,
792          .offset   = offsetof(IntelHDAState, irr),
793      },
794      [ ICH6_REG_IRS ] = {
795          .name     = "ICS",
796          .size     = 2,
797          .wmask    = 0x0003,
798          .wclear   = 0x0002,
799          .offset   = offsetof(IntelHDAState, ics),
800          .whandler = intel_hda_set_ics,
801      },
802  
803  #define HDA_STREAM(_t, _i)                                            \
804      [ ST_REG(_i, ICH6_REG_SD_CTL) ] = {                               \
805          .stream   = _i,                                               \
806          .name     = _t stringify(_i) " CTL",                          \
807          .size     = 4,                                                \
808          .wmask    = 0x1cff001f,                                       \
809          .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
810          .whandler = intel_hda_set_st_ctl,                             \
811      },                                                                \
812      [ ST_REG(_i, ICH6_REG_SD_CTL) + 2] = {                            \
813          .stream   = _i,                                               \
814          .name     = _t stringify(_i) " CTL(stnr)",                    \
815          .size     = 1,                                                \
816          .shift    = 16,                                               \
817          .wmask    = 0x00ff0000,                                       \
818          .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
819          .whandler = intel_hda_set_st_ctl,                             \
820      },                                                                \
821      [ ST_REG(_i, ICH6_REG_SD_STS)] = {                                \
822          .stream   = _i,                                               \
823          .name     = _t stringify(_i) " CTL(sts)",                     \
824          .size     = 1,                                                \
825          .shift    = 24,                                               \
826          .wmask    = 0x1c000000,                                       \
827          .wclear   = 0x1c000000,                                       \
828          .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
829          .whandler = intel_hda_set_st_ctl,                             \
830          .reset    = SD_STS_FIFO_READY << 24                           \
831      },                                                                \
832      [ ST_REG(_i, ICH6_REG_SD_LPIB) ] = {                              \
833          .stream   = _i,                                               \
834          .name     = _t stringify(_i) " LPIB",                         \
835          .size     = 4,                                                \
836          .offset   = offsetof(IntelHDAState, st[_i].lpib),             \
837      },                                                                \
838      [ ST_REG(_i, ICH6_REG_SD_CBL) ] = {                               \
839          .stream   = _i,                                               \
840          .name     = _t stringify(_i) " CBL",                          \
841          .size     = 4,                                                \
842          .wmask    = 0xffffffff,                                       \
843          .offset   = offsetof(IntelHDAState, st[_i].cbl),              \
844      },                                                                \
845      [ ST_REG(_i, ICH6_REG_SD_LVI) ] = {                               \
846          .stream   = _i,                                               \
847          .name     = _t stringify(_i) " LVI",                          \
848          .size     = 2,                                                \
849          .wmask    = 0x00ff,                                           \
850          .offset   = offsetof(IntelHDAState, st[_i].lvi),              \
851      },                                                                \
852      [ ST_REG(_i, ICH6_REG_SD_FIFOSIZE) ] = {                          \
853          .stream   = _i,                                               \
854          .name     = _t stringify(_i) " FIFOS",                        \
855          .size     = 2,                                                \
856          .reset    = HDA_BUFFER_SIZE,                                  \
857      },                                                                \
858      [ ST_REG(_i, ICH6_REG_SD_FORMAT) ] = {                            \
859          .stream   = _i,                                               \
860          .name     = _t stringify(_i) " FMT",                          \
861          .size     = 2,                                                \
862          .wmask    = 0x7f7f,                                           \
863          .offset   = offsetof(IntelHDAState, st[_i].fmt),              \
864      },                                                                \
865      [ ST_REG(_i, ICH6_REG_SD_BDLPL) ] = {                             \
866          .stream   = _i,                                               \
867          .name     = _t stringify(_i) " BDLPL",                        \
868          .size     = 4,                                                \
869          .wmask    = 0xffffff80,                                       \
870          .offset   = offsetof(IntelHDAState, st[_i].bdlp_lbase),       \
871      },                                                                \
872      [ ST_REG(_i, ICH6_REG_SD_BDLPU) ] = {                             \
873          .stream   = _i,                                               \
874          .name     = _t stringify(_i) " BDLPU",                        \
875          .size     = 4,                                                \
876          .wmask    = 0xffffffff,                                       \
877          .offset   = offsetof(IntelHDAState, st[_i].bdlp_ubase),       \
878      },                                                                \
879  
880      HDA_STREAM("IN", 0)
881      HDA_STREAM("IN", 1)
882      HDA_STREAM("IN", 2)
883      HDA_STREAM("IN", 3)
884  
885      HDA_STREAM("OUT", 4)
886      HDA_STREAM("OUT", 5)
887      HDA_STREAM("OUT", 6)
888      HDA_STREAM("OUT", 7)
889  
890  };
891  
892  static const IntelHDAReg *intel_hda_reg_find(IntelHDAState *d, hwaddr addr)
893  {
894      const IntelHDAReg *reg;
895  
896      if (addr >= ARRAY_SIZE(regtab)) {
897          goto noreg;
898      }
899      reg = regtab+addr;
900      if (reg->name == NULL) {
901          goto noreg;
902      }
903      return reg;
904  
905  noreg:
906      dprint(d, 1, "unknown register, addr 0x%x\n", (int) addr);
907      return NULL;
908  }
909  
910  static uint32_t *intel_hda_reg_addr(IntelHDAState *d, const IntelHDAReg *reg)
911  {
912      uint8_t *addr = (void*)d;
913  
914      addr += reg->offset;
915      return (uint32_t*)addr;
916  }
917  
918  static void intel_hda_reg_write(IntelHDAState *d, const IntelHDAReg *reg, uint32_t val,
919                                  uint32_t wmask)
920  {
921      uint32_t *addr;
922      uint32_t old;
923  
924      if (!reg) {
925          return;
926      }
927      if (!reg->wmask) {
928          qemu_log_mask(LOG_GUEST_ERROR, "intel-hda: write to r/o reg %s\n",
929                        reg->name);
930          return;
931      }
932  
933      if (d->debug) {
934          time_t now = time(NULL);
935          if (d->last_write && d->last_reg == reg && d->last_val == val) {
936              d->repeat_count++;
937              if (d->last_sec != now) {
938                  dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
939                  d->last_sec = now;
940                  d->repeat_count = 0;
941              }
942          } else {
943              if (d->repeat_count) {
944                  dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
945              }
946              dprint(d, 2, "write %-16s: 0x%x (%x)\n", reg->name, val, wmask);
947              d->last_write = 1;
948              d->last_reg   = reg;
949              d->last_val   = val;
950              d->last_sec   = now;
951              d->repeat_count = 0;
952          }
953      }
954      assert(reg->offset != 0);
955  
956      addr = intel_hda_reg_addr(d, reg);
957      old = *addr;
958  
959      if (reg->shift) {
960          val <<= reg->shift;
961          wmask <<= reg->shift;
962      }
963      wmask &= reg->wmask;
964      *addr &= ~wmask;
965      *addr |= wmask & val;
966      *addr &= ~(val & reg->wclear);
967  
968      if (reg->whandler) {
969          reg->whandler(d, reg, old);
970      }
971  }
972  
973  static uint32_t intel_hda_reg_read(IntelHDAState *d, const IntelHDAReg *reg,
974                                     uint32_t rmask)
975  {
976      uint32_t *addr, ret;
977  
978      if (!reg) {
979          return 0;
980      }
981  
982      if (reg->rhandler) {
983          reg->rhandler(d, reg);
984      }
985  
986      if (reg->offset == 0) {
987          /* constant read-only register */
988          ret = reg->reset;
989      } else {
990          addr = intel_hda_reg_addr(d, reg);
991          ret = *addr;
992          if (reg->shift) {
993              ret >>= reg->shift;
994          }
995          ret &= rmask;
996      }
997      if (d->debug) {
998          time_t now = time(NULL);
999          if (!d->last_write && d->last_reg == reg && d->last_val == ret) {
1000              d->repeat_count++;
1001              if (d->last_sec != now) {
1002                  dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1003                  d->last_sec = now;
1004                  d->repeat_count = 0;
1005              }
1006          } else {
1007              if (d->repeat_count) {
1008                  dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1009              }
1010              dprint(d, 2, "read  %-16s: 0x%x (%x)\n", reg->name, ret, rmask);
1011              d->last_write = 0;
1012              d->last_reg   = reg;
1013              d->last_val   = ret;
1014              d->last_sec   = now;
1015              d->repeat_count = 0;
1016          }
1017      }
1018      return ret;
1019  }
1020  
1021  static void intel_hda_regs_reset(IntelHDAState *d)
1022  {
1023      uint32_t *addr;
1024      int i;
1025  
1026      for (i = 0; i < ARRAY_SIZE(regtab); i++) {
1027          if (regtab[i].name == NULL) {
1028              continue;
1029          }
1030          if (regtab[i].offset == 0) {
1031              continue;
1032          }
1033          addr = intel_hda_reg_addr(d, regtab + i);
1034          *addr = regtab[i].reset;
1035      }
1036  }
1037  
1038  /* --------------------------------------------------------------------- */
1039  
1040  static void intel_hda_mmio_write(void *opaque, hwaddr addr, uint64_t val,
1041                                   unsigned size)
1042  {
1043      IntelHDAState *d = opaque;
1044      const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1045  
1046      intel_hda_reg_write(d, reg, val, MAKE_64BIT_MASK(0, size * 8));
1047  }
1048  
1049  static uint64_t intel_hda_mmio_read(void *opaque, hwaddr addr, unsigned size)
1050  {
1051      IntelHDAState *d = opaque;
1052      const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1053  
1054      return intel_hda_reg_read(d, reg, MAKE_64BIT_MASK(0, size * 8));
1055  }
1056  
1057  static const MemoryRegionOps intel_hda_mmio_ops = {
1058      .read = intel_hda_mmio_read,
1059      .write = intel_hda_mmio_write,
1060      .impl = {
1061          .min_access_size = 1,
1062          .max_access_size = 4,
1063      },
1064      .endianness = DEVICE_NATIVE_ENDIAN,
1065  };
1066  
1067  /* --------------------------------------------------------------------- */
1068  
1069  static void intel_hda_reset(DeviceState *dev)
1070  {
1071      BusChild *kid;
1072      IntelHDAState *d = INTEL_HDA(dev);
1073      HDACodecDevice *cdev;
1074  
1075      intel_hda_regs_reset(d);
1076      d->wall_base_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
1077  
1078      /* reset codecs */
1079      QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
1080          DeviceState *qdev = kid->child;
1081          cdev = HDA_CODEC_DEVICE(qdev);
1082          device_legacy_reset(DEVICE(cdev));
1083          d->state_sts |= (1 << cdev->cad);
1084      }
1085      intel_hda_update_irq(d);
1086  }
1087  
1088  static void intel_hda_realize(PCIDevice *pci, Error **errp)
1089  {
1090      IntelHDAState *d = INTEL_HDA(pci);
1091      uint8_t *conf = d->pci.config;
1092      Error *err = NULL;
1093      int ret;
1094  
1095      d->name = object_get_typename(OBJECT(d));
1096  
1097      pci_config_set_interrupt_pin(conf, 1);
1098  
1099      /* HDCTL off 0x40 bit 0 selects signaling mode (1-HDA, 0 - Ac97) 18.1.19 */
1100      conf[0x40] = 0x01;
1101  
1102      if (d->msi != ON_OFF_AUTO_OFF) {
1103          ret = msi_init(&d->pci, d->old_msi_addr ? 0x50 : 0x60,
1104                         1, true, false, &err);
1105          /* Any error other than -ENOTSUP(board's MSI support is broken)
1106           * is a programming error */
1107          assert(!ret || ret == -ENOTSUP);
1108          if (ret && d->msi == ON_OFF_AUTO_ON) {
1109              /* Can't satisfy user's explicit msi=on request, fail */
1110              error_append_hint(&err, "You have to use msi=auto (default) or "
1111                      "msi=off with this machine type.\n");
1112              error_propagate(errp, err);
1113              return;
1114          }
1115          assert(!err || d->msi == ON_OFF_AUTO_AUTO);
1116          /* With msi=auto, we fall back to MSI off silently */
1117          error_free(err);
1118      }
1119  
1120      memory_region_init(&d->container, OBJECT(d),
1121                         "intel-hda-container", 0x4000);
1122      memory_region_init_io(&d->mmio, OBJECT(d), &intel_hda_mmio_ops, d,
1123                            "intel-hda", 0x2000);
1124      memory_region_add_subregion(&d->container, 0x0000, &d->mmio);
1125      memory_region_init_alias(&d->alias, OBJECT(d), "intel-hda-alias",
1126                               &d->mmio, 0, 0x2000);
1127      memory_region_add_subregion(&d->container, 0x2000, &d->alias);
1128      pci_register_bar(&d->pci, 0, 0, &d->container);
1129  
1130      hda_codec_bus_init(DEVICE(pci), &d->codecs, sizeof(d->codecs),
1131                         intel_hda_response, intel_hda_xfer);
1132  }
1133  
1134  static void intel_hda_exit(PCIDevice *pci)
1135  {
1136      IntelHDAState *d = INTEL_HDA(pci);
1137  
1138      msi_uninit(&d->pci);
1139  }
1140  
1141  static int intel_hda_post_load(void *opaque, int version)
1142  {
1143      IntelHDAState* d = opaque;
1144      int i;
1145  
1146      dprint(d, 1, "%s\n", __func__);
1147      for (i = 0; i < ARRAY_SIZE(d->st); i++) {
1148          if (d->st[i].ctl & 0x02) {
1149              intel_hda_parse_bdl(d, &d->st[i]);
1150          }
1151      }
1152      intel_hda_update_irq(d);
1153      return 0;
1154  }
1155  
1156  static const VMStateDescription vmstate_intel_hda_stream = {
1157      .name = "intel-hda-stream",
1158      .version_id = 1,
1159      .fields = (VMStateField[]) {
1160          VMSTATE_UINT32(ctl, IntelHDAStream),
1161          VMSTATE_UINT32(lpib, IntelHDAStream),
1162          VMSTATE_UINT32(cbl, IntelHDAStream),
1163          VMSTATE_UINT32(lvi, IntelHDAStream),
1164          VMSTATE_UINT32(fmt, IntelHDAStream),
1165          VMSTATE_UINT32(bdlp_lbase, IntelHDAStream),
1166          VMSTATE_UINT32(bdlp_ubase, IntelHDAStream),
1167          VMSTATE_END_OF_LIST()
1168      }
1169  };
1170  
1171  static const VMStateDescription vmstate_intel_hda = {
1172      .name = "intel-hda",
1173      .version_id = 1,
1174      .post_load = intel_hda_post_load,
1175      .fields = (VMStateField[]) {
1176          VMSTATE_PCI_DEVICE(pci, IntelHDAState),
1177  
1178          /* registers */
1179          VMSTATE_UINT32(g_ctl, IntelHDAState),
1180          VMSTATE_UINT32(wake_en, IntelHDAState),
1181          VMSTATE_UINT32(state_sts, IntelHDAState),
1182          VMSTATE_UINT32(int_ctl, IntelHDAState),
1183          VMSTATE_UINT32(int_sts, IntelHDAState),
1184          VMSTATE_UINT32(wall_clk, IntelHDAState),
1185          VMSTATE_UINT32(corb_lbase, IntelHDAState),
1186          VMSTATE_UINT32(corb_ubase, IntelHDAState),
1187          VMSTATE_UINT32(corb_rp, IntelHDAState),
1188          VMSTATE_UINT32(corb_wp, IntelHDAState),
1189          VMSTATE_UINT32(corb_ctl, IntelHDAState),
1190          VMSTATE_UINT32(corb_sts, IntelHDAState),
1191          VMSTATE_UINT32(corb_size, IntelHDAState),
1192          VMSTATE_UINT32(rirb_lbase, IntelHDAState),
1193          VMSTATE_UINT32(rirb_ubase, IntelHDAState),
1194          VMSTATE_UINT32(rirb_wp, IntelHDAState),
1195          VMSTATE_UINT32(rirb_cnt, IntelHDAState),
1196          VMSTATE_UINT32(rirb_ctl, IntelHDAState),
1197          VMSTATE_UINT32(rirb_sts, IntelHDAState),
1198          VMSTATE_UINT32(rirb_size, IntelHDAState),
1199          VMSTATE_UINT32(dp_lbase, IntelHDAState),
1200          VMSTATE_UINT32(dp_ubase, IntelHDAState),
1201          VMSTATE_UINT32(icw, IntelHDAState),
1202          VMSTATE_UINT32(irr, IntelHDAState),
1203          VMSTATE_UINT32(ics, IntelHDAState),
1204          VMSTATE_STRUCT_ARRAY(st, IntelHDAState, 8, 0,
1205                               vmstate_intel_hda_stream,
1206                               IntelHDAStream),
1207  
1208          /* additional state info */
1209          VMSTATE_UINT32(rirb_count, IntelHDAState),
1210          VMSTATE_INT64(wall_base_ns, IntelHDAState),
1211  
1212          VMSTATE_END_OF_LIST()
1213      }
1214  };
1215  
1216  static Property intel_hda_properties[] = {
1217      DEFINE_PROP_UINT32("debug", IntelHDAState, debug, 0),
1218      DEFINE_PROP_ON_OFF_AUTO("msi", IntelHDAState, msi, ON_OFF_AUTO_AUTO),
1219      DEFINE_PROP_BOOL("old_msi_addr", IntelHDAState, old_msi_addr, false),
1220      DEFINE_PROP_END_OF_LIST(),
1221  };
1222  
1223  static void intel_hda_class_init(ObjectClass *klass, void *data)
1224  {
1225      DeviceClass *dc = DEVICE_CLASS(klass);
1226      PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1227  
1228      k->realize = intel_hda_realize;
1229      k->exit = intel_hda_exit;
1230      k->vendor_id = PCI_VENDOR_ID_INTEL;
1231      k->class_id = PCI_CLASS_MULTIMEDIA_HD_AUDIO;
1232      dc->reset = intel_hda_reset;
1233      dc->vmsd = &vmstate_intel_hda;
1234      device_class_set_props(dc, intel_hda_properties);
1235  }
1236  
1237  static void intel_hda_class_init_ich6(ObjectClass *klass, void *data)
1238  {
1239      DeviceClass *dc = DEVICE_CLASS(klass);
1240      PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1241  
1242      k->device_id = 0x2668;
1243      k->revision = 1;
1244      set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
1245      dc->desc = "Intel HD Audio Controller (ich6)";
1246  }
1247  
1248  static void intel_hda_class_init_ich9(ObjectClass *klass, void *data)
1249  {
1250      DeviceClass *dc = DEVICE_CLASS(klass);
1251      PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1252  
1253      k->device_id = 0x293e;
1254      k->revision = 3;
1255      set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
1256      dc->desc = "Intel HD Audio Controller (ich9)";
1257  }
1258  
1259  static const TypeInfo intel_hda_info = {
1260      .name          = TYPE_INTEL_HDA_GENERIC,
1261      .parent        = TYPE_PCI_DEVICE,
1262      .instance_size = sizeof(IntelHDAState),
1263      .class_init    = intel_hda_class_init,
1264      .abstract      = true,
1265      .interfaces = (InterfaceInfo[]) {
1266          { INTERFACE_CONVENTIONAL_PCI_DEVICE },
1267          { },
1268      },
1269  };
1270  
1271  static const TypeInfo intel_hda_info_ich6 = {
1272      .name          = "intel-hda",
1273      .parent        = TYPE_INTEL_HDA_GENERIC,
1274      .class_init    = intel_hda_class_init_ich6,
1275  };
1276  
1277  static const TypeInfo intel_hda_info_ich9 = {
1278      .name          = "ich9-intel-hda",
1279      .parent        = TYPE_INTEL_HDA_GENERIC,
1280      .class_init    = intel_hda_class_init_ich9,
1281  };
1282  
1283  static void hda_codec_device_class_init(ObjectClass *klass, void *data)
1284  {
1285      DeviceClass *k = DEVICE_CLASS(klass);
1286      k->realize = hda_codec_dev_realize;
1287      k->unrealize = hda_codec_dev_unrealize;
1288      set_bit(DEVICE_CATEGORY_SOUND, k->categories);
1289      k->bus_type = TYPE_HDA_BUS;
1290      device_class_set_props(k, hda_props);
1291  }
1292  
1293  static const TypeInfo hda_codec_device_type_info = {
1294      .name = TYPE_HDA_CODEC_DEVICE,
1295      .parent = TYPE_DEVICE,
1296      .instance_size = sizeof(HDACodecDevice),
1297      .abstract = true,
1298      .class_size = sizeof(HDACodecDeviceClass),
1299      .class_init = hda_codec_device_class_init,
1300  };
1301  
1302  /*
1303   * create intel hda controller with codec attached to it,
1304   * so '-soundhw hda' works.
1305   */
1306  static int intel_hda_and_codec_init(PCIBus *bus)
1307  {
1308      DeviceState *controller;
1309      BusState *hdabus;
1310      DeviceState *codec;
1311  
1312      warn_report("'-soundhw hda' is deprecated, "
1313                  "please use '-device intel-hda -device hda-duplex' instead");
1314      controller = DEVICE(pci_create_simple(bus, -1, "intel-hda"));
1315      hdabus = QLIST_FIRST(&controller->child_bus);
1316      codec = qdev_new("hda-duplex");
1317      qdev_realize_and_unref(codec, hdabus, &error_fatal);
1318      return 0;
1319  }
1320  
1321  static void intel_hda_register_types(void)
1322  {
1323      type_register_static(&hda_codec_bus_info);
1324      type_register_static(&intel_hda_info);
1325      type_register_static(&intel_hda_info_ich6);
1326      type_register_static(&intel_hda_info_ich9);
1327      type_register_static(&hda_codec_device_type_info);
1328      pci_register_soundhw("hda", "Intel HD Audio", intel_hda_and_codec_init);
1329  }
1330  
1331  type_init(intel_hda_register_types)
1332