xref: /openbmc/qemu/hw/audio/intel-hda.c (revision a68694cd)
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