xref: /openbmc/qemu/hw/audio/intel-hda.c (revision cbb45ff0)
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_init(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         ldl_le_pci_dma(&d->pci, addr + 4 * rp, &verb, MEMTXATTRS_UNSPECIFIED);
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     const MemTxAttrs attrs = MEMTXATTRS_UNSPECIFIED;
349     HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
350     IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
351     hwaddr addr;
352     uint32_t wp, ex;
353 
354     if (d->ics & ICH6_IRS_BUSY) {
355         dprint(d, 2, "%s: [irr] response 0x%x, cad 0x%x\n",
356                __func__, response, dev->cad);
357         d->irr = response;
358         d->ics &= ~(ICH6_IRS_BUSY | 0xf0);
359         d->ics |= (ICH6_IRS_VALID | (dev->cad << 4));
360         return;
361     }
362 
363     if (!(d->rirb_ctl & ICH6_RBCTL_DMA_EN)) {
364         dprint(d, 1, "%s: rirb dma disabled, drop codec response\n", __func__);
365         return;
366     }
367 
368     ex = (solicited ? 0 : (1 << 4)) | dev->cad;
369     wp = (d->rirb_wp + 1) & 0xff;
370     addr = intel_hda_addr(d->rirb_lbase, d->rirb_ubase);
371     stl_le_pci_dma(&d->pci, addr + 8 * wp, response, attrs);
372     stl_le_pci_dma(&d->pci, addr + 8 * wp + 4, ex, attrs);
373     d->rirb_wp = wp;
374 
375     dprint(d, 2, "%s: [wp 0x%x] response 0x%x, extra 0x%x\n",
376            __func__, wp, response, ex);
377 
378     d->rirb_count++;
379     if (d->rirb_count == d->rirb_cnt) {
380         dprint(d, 2, "%s: rirb count reached (%d)\n", __func__, d->rirb_count);
381         if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
382             d->rirb_sts |= ICH6_RBSTS_IRQ;
383             intel_hda_update_irq(d);
384         }
385     } else if ((d->corb_rp & 0xff) == d->corb_wp) {
386         dprint(d, 2, "%s: corb ring empty (%d/%d)\n", __func__,
387                d->rirb_count, d->rirb_cnt);
388         if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
389             d->rirb_sts |= ICH6_RBSTS_IRQ;
390             intel_hda_update_irq(d);
391         }
392     }
393 }
394 
395 static bool intel_hda_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
396                            uint8_t *buf, uint32_t len)
397 {
398     const MemTxAttrs attrs = MEMTXATTRS_UNSPECIFIED;
399     HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
400     IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
401     hwaddr addr;
402     uint32_t s, copy, left;
403     IntelHDAStream *st;
404     bool irq = false;
405 
406     st = output ? d->st + 4 : d->st;
407     for (s = 0; s < 4; s++) {
408         if (stnr == ((st[s].ctl >> 20) & 0x0f)) {
409             st = st + s;
410             break;
411         }
412     }
413     if (s == 4) {
414         return false;
415     }
416     if (st->bpl == NULL) {
417         return false;
418     }
419 
420     left = len;
421     s = st->bentries;
422     while (left > 0 && s-- > 0) {
423         copy = left;
424         if (copy > st->bsize - st->lpib)
425             copy = st->bsize - st->lpib;
426         if (copy > st->bpl[st->be].len - st->bp)
427             copy = st->bpl[st->be].len - st->bp;
428 
429         dprint(d, 3, "dma: entry %d, pos %d/%d, copy %d\n",
430                st->be, st->bp, st->bpl[st->be].len, copy);
431 
432         pci_dma_rw(&d->pci, st->bpl[st->be].addr + st->bp, buf, copy, !output,
433                    attrs);
434         st->lpib += copy;
435         st->bp += copy;
436         buf += copy;
437         left -= copy;
438 
439         if (st->bpl[st->be].len == st->bp) {
440             /* bpl entry filled */
441             if (st->bpl[st->be].flags & 0x01) {
442                 irq = true;
443             }
444             st->bp = 0;
445             st->be++;
446             if (st->be == st->bentries) {
447                 /* bpl wrap around */
448                 st->be = 0;
449                 st->lpib = 0;
450             }
451         }
452     }
453     if (d->dp_lbase & 0x01) {
454         s = st - d->st;
455         addr = intel_hda_addr(d->dp_lbase & ~0x01, d->dp_ubase);
456         stl_le_pci_dma(&d->pci, addr + 8 * s, st->lpib, attrs);
457     }
458     dprint(d, 3, "dma: --\n");
459 
460     if (irq) {
461         st->ctl |= (1 << 26); /* buffer completion interrupt */
462         intel_hda_update_irq(d);
463     }
464     return true;
465 }
466 
467 static void intel_hda_parse_bdl(IntelHDAState *d, IntelHDAStream *st)
468 {
469     hwaddr addr;
470     uint8_t buf[16];
471     uint32_t i;
472 
473     addr = intel_hda_addr(st->bdlp_lbase, st->bdlp_ubase);
474     st->bentries = st->lvi +1;
475     g_free(st->bpl);
476     st->bpl = g_malloc(sizeof(bpl) * st->bentries);
477     for (i = 0; i < st->bentries; i++, addr += 16) {
478         pci_dma_read(&d->pci, addr, buf, 16);
479         st->bpl[i].addr  = le64_to_cpu(*(uint64_t *)buf);
480         st->bpl[i].len   = le32_to_cpu(*(uint32_t *)(buf + 8));
481         st->bpl[i].flags = le32_to_cpu(*(uint32_t *)(buf + 12));
482         dprint(d, 1, "bdl/%d: 0x%" PRIx64 " +0x%x, 0x%x\n",
483                i, st->bpl[i].addr, st->bpl[i].len, st->bpl[i].flags);
484     }
485 
486     st->bsize = st->cbl;
487     st->lpib  = 0;
488     st->be    = 0;
489     st->bp    = 0;
490 }
491 
492 static void intel_hda_notify_codecs(IntelHDAState *d, uint32_t stream, bool running, bool output)
493 {
494     BusChild *kid;
495     HDACodecDevice *cdev;
496 
497     QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
498         DeviceState *qdev = kid->child;
499         HDACodecDeviceClass *cdc;
500 
501         cdev = HDA_CODEC_DEVICE(qdev);
502         cdc = HDA_CODEC_DEVICE_GET_CLASS(cdev);
503         if (cdc->stream) {
504             cdc->stream(cdev, stream, running, output);
505         }
506     }
507 }
508 
509 /* --------------------------------------------------------------------- */
510 
511 static void intel_hda_set_g_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
512 {
513     if ((d->g_ctl & ICH6_GCTL_RESET) == 0) {
514         intel_hda_reset(DEVICE(d));
515     }
516 }
517 
518 static void intel_hda_set_wake_en(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
519 {
520     intel_hda_update_irq(d);
521 }
522 
523 static void intel_hda_set_state_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
524 {
525     intel_hda_update_irq(d);
526 }
527 
528 static void intel_hda_set_int_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
529 {
530     intel_hda_update_irq(d);
531 }
532 
533 static void intel_hda_get_wall_clk(IntelHDAState *d, const IntelHDAReg *reg)
534 {
535     int64_t ns;
536 
537     ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - d->wall_base_ns;
538     d->wall_clk = (uint32_t)(ns * 24 / 1000);  /* 24 MHz */
539 }
540 
541 static void intel_hda_set_corb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
542 {
543     intel_hda_corb_run(d);
544 }
545 
546 static void intel_hda_set_corb_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
547 {
548     intel_hda_corb_run(d);
549 }
550 
551 static void intel_hda_set_rirb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
552 {
553     if (d->rirb_wp & ICH6_RIRBWP_RST) {
554         d->rirb_wp = 0;
555     }
556 }
557 
558 static void intel_hda_set_rirb_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
559 {
560     intel_hda_update_irq(d);
561 
562     if ((old & ICH6_RBSTS_IRQ) && !(d->rirb_sts & ICH6_RBSTS_IRQ)) {
563         /* cleared ICH6_RBSTS_IRQ */
564         d->rirb_count = 0;
565         intel_hda_corb_run(d);
566     }
567 }
568 
569 static void intel_hda_set_ics(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
570 {
571     if (d->ics & ICH6_IRS_BUSY) {
572         intel_hda_corb_run(d);
573     }
574 }
575 
576 static void intel_hda_set_st_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
577 {
578     bool output = reg->stream >= 4;
579     IntelHDAStream *st = d->st + reg->stream;
580 
581     if (st->ctl & 0x01) {
582         /* reset */
583         dprint(d, 1, "st #%d: reset\n", reg->stream);
584         st->ctl = SD_STS_FIFO_READY << 24 | SD_CTL_STREAM_RESET;
585     }
586     if ((st->ctl & 0x02) != (old & 0x02)) {
587         uint32_t stnr = (st->ctl >> 20) & 0x0f;
588         /* run bit flipped */
589         if (st->ctl & 0x02) {
590             /* start */
591             dprint(d, 1, "st #%d: start %d (ring buf %d bytes)\n",
592                    reg->stream, stnr, st->cbl);
593             intel_hda_parse_bdl(d, st);
594             intel_hda_notify_codecs(d, stnr, true, output);
595         } else {
596             /* stop */
597             dprint(d, 1, "st #%d: stop %d\n", reg->stream, stnr);
598             intel_hda_notify_codecs(d, stnr, false, output);
599         }
600     }
601     intel_hda_update_irq(d);
602 }
603 
604 /* --------------------------------------------------------------------- */
605 
606 #define ST_REG(_n, _o) (0x80 + (_n) * 0x20 + (_o))
607 
608 static const struct IntelHDAReg regtab[] = {
609     /* global */
610     [ ICH6_REG_GCAP ] = {
611         .name     = "GCAP",
612         .size     = 2,
613         .reset    = 0x4401,
614     },
615     [ ICH6_REG_VMIN ] = {
616         .name     = "VMIN",
617         .size     = 1,
618     },
619     [ ICH6_REG_VMAJ ] = {
620         .name     = "VMAJ",
621         .size     = 1,
622         .reset    = 1,
623     },
624     [ ICH6_REG_OUTPAY ] = {
625         .name     = "OUTPAY",
626         .size     = 2,
627         .reset    = 0x3c,
628     },
629     [ ICH6_REG_INPAY ] = {
630         .name     = "INPAY",
631         .size     = 2,
632         .reset    = 0x1d,
633     },
634     [ ICH6_REG_GCTL ] = {
635         .name     = "GCTL",
636         .size     = 4,
637         .wmask    = 0x0103,
638         .offset   = offsetof(IntelHDAState, g_ctl),
639         .whandler = intel_hda_set_g_ctl,
640     },
641     [ ICH6_REG_WAKEEN ] = {
642         .name     = "WAKEEN",
643         .size     = 2,
644         .wmask    = 0x7fff,
645         .offset   = offsetof(IntelHDAState, wake_en),
646         .whandler = intel_hda_set_wake_en,
647     },
648     [ ICH6_REG_STATESTS ] = {
649         .name     = "STATESTS",
650         .size     = 2,
651         .wmask    = 0x7fff,
652         .wclear   = 0x7fff,
653         .offset   = offsetof(IntelHDAState, state_sts),
654         .whandler = intel_hda_set_state_sts,
655     },
656 
657     /* interrupts */
658     [ ICH6_REG_INTCTL ] = {
659         .name     = "INTCTL",
660         .size     = 4,
661         .wmask    = 0xc00000ff,
662         .offset   = offsetof(IntelHDAState, int_ctl),
663         .whandler = intel_hda_set_int_ctl,
664     },
665     [ ICH6_REG_INTSTS ] = {
666         .name     = "INTSTS",
667         .size     = 4,
668         .wmask    = 0xc00000ff,
669         .wclear   = 0xc00000ff,
670         .offset   = offsetof(IntelHDAState, int_sts),
671     },
672 
673     /* misc */
674     [ ICH6_REG_WALLCLK ] = {
675         .name     = "WALLCLK",
676         .size     = 4,
677         .offset   = offsetof(IntelHDAState, wall_clk),
678         .rhandler = intel_hda_get_wall_clk,
679     },
680 
681     /* dma engine */
682     [ ICH6_REG_CORBLBASE ] = {
683         .name     = "CORBLBASE",
684         .size     = 4,
685         .wmask    = 0xffffff80,
686         .offset   = offsetof(IntelHDAState, corb_lbase),
687     },
688     [ ICH6_REG_CORBUBASE ] = {
689         .name     = "CORBUBASE",
690         .size     = 4,
691         .wmask    = 0xffffffff,
692         .offset   = offsetof(IntelHDAState, corb_ubase),
693     },
694     [ ICH6_REG_CORBWP ] = {
695         .name     = "CORBWP",
696         .size     = 2,
697         .wmask    = 0xff,
698         .offset   = offsetof(IntelHDAState, corb_wp),
699         .whandler = intel_hda_set_corb_wp,
700     },
701     [ ICH6_REG_CORBRP ] = {
702         .name     = "CORBRP",
703         .size     = 2,
704         .wmask    = 0x80ff,
705         .offset   = offsetof(IntelHDAState, corb_rp),
706     },
707     [ ICH6_REG_CORBCTL ] = {
708         .name     = "CORBCTL",
709         .size     = 1,
710         .wmask    = 0x03,
711         .offset   = offsetof(IntelHDAState, corb_ctl),
712         .whandler = intel_hda_set_corb_ctl,
713     },
714     [ ICH6_REG_CORBSTS ] = {
715         .name     = "CORBSTS",
716         .size     = 1,
717         .wmask    = 0x01,
718         .wclear   = 0x01,
719         .offset   = offsetof(IntelHDAState, corb_sts),
720     },
721     [ ICH6_REG_CORBSIZE ] = {
722         .name     = "CORBSIZE",
723         .size     = 1,
724         .reset    = 0x42,
725         .offset   = offsetof(IntelHDAState, corb_size),
726     },
727     [ ICH6_REG_RIRBLBASE ] = {
728         .name     = "RIRBLBASE",
729         .size     = 4,
730         .wmask    = 0xffffff80,
731         .offset   = offsetof(IntelHDAState, rirb_lbase),
732     },
733     [ ICH6_REG_RIRBUBASE ] = {
734         .name     = "RIRBUBASE",
735         .size     = 4,
736         .wmask    = 0xffffffff,
737         .offset   = offsetof(IntelHDAState, rirb_ubase),
738     },
739     [ ICH6_REG_RIRBWP ] = {
740         .name     = "RIRBWP",
741         .size     = 2,
742         .wmask    = 0x8000,
743         .offset   = offsetof(IntelHDAState, rirb_wp),
744         .whandler = intel_hda_set_rirb_wp,
745     },
746     [ ICH6_REG_RINTCNT ] = {
747         .name     = "RINTCNT",
748         .size     = 2,
749         .wmask    = 0xff,
750         .offset   = offsetof(IntelHDAState, rirb_cnt),
751     },
752     [ ICH6_REG_RIRBCTL ] = {
753         .name     = "RIRBCTL",
754         .size     = 1,
755         .wmask    = 0x07,
756         .offset   = offsetof(IntelHDAState, rirb_ctl),
757     },
758     [ ICH6_REG_RIRBSTS ] = {
759         .name     = "RIRBSTS",
760         .size     = 1,
761         .wmask    = 0x05,
762         .wclear   = 0x05,
763         .offset   = offsetof(IntelHDAState, rirb_sts),
764         .whandler = intel_hda_set_rirb_sts,
765     },
766     [ ICH6_REG_RIRBSIZE ] = {
767         .name     = "RIRBSIZE",
768         .size     = 1,
769         .reset    = 0x42,
770         .offset   = offsetof(IntelHDAState, rirb_size),
771     },
772 
773     [ ICH6_REG_DPLBASE ] = {
774         .name     = "DPLBASE",
775         .size     = 4,
776         .wmask    = 0xffffff81,
777         .offset   = offsetof(IntelHDAState, dp_lbase),
778     },
779     [ ICH6_REG_DPUBASE ] = {
780         .name     = "DPUBASE",
781         .size     = 4,
782         .wmask    = 0xffffffff,
783         .offset   = offsetof(IntelHDAState, dp_ubase),
784     },
785 
786     [ ICH6_REG_IC ] = {
787         .name     = "ICW",
788         .size     = 4,
789         .wmask    = 0xffffffff,
790         .offset   = offsetof(IntelHDAState, icw),
791     },
792     [ ICH6_REG_IR ] = {
793         .name     = "IRR",
794         .size     = 4,
795         .offset   = offsetof(IntelHDAState, irr),
796     },
797     [ ICH6_REG_IRS ] = {
798         .name     = "ICS",
799         .size     = 2,
800         .wmask    = 0x0003,
801         .wclear   = 0x0002,
802         .offset   = offsetof(IntelHDAState, ics),
803         .whandler = intel_hda_set_ics,
804     },
805 
806 #define HDA_STREAM(_t, _i)                                            \
807     [ ST_REG(_i, ICH6_REG_SD_CTL) ] = {                               \
808         .stream   = _i,                                               \
809         .name     = _t stringify(_i) " CTL",                          \
810         .size     = 4,                                                \
811         .wmask    = 0x1cff001f,                                       \
812         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
813         .whandler = intel_hda_set_st_ctl,                             \
814     },                                                                \
815     [ ST_REG(_i, ICH6_REG_SD_CTL) + 2] = {                            \
816         .stream   = _i,                                               \
817         .name     = _t stringify(_i) " CTL(stnr)",                    \
818         .size     = 1,                                                \
819         .shift    = 16,                                               \
820         .wmask    = 0x00ff0000,                                       \
821         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
822         .whandler = intel_hda_set_st_ctl,                             \
823     },                                                                \
824     [ ST_REG(_i, ICH6_REG_SD_STS)] = {                                \
825         .stream   = _i,                                               \
826         .name     = _t stringify(_i) " CTL(sts)",                     \
827         .size     = 1,                                                \
828         .shift    = 24,                                               \
829         .wmask    = 0x1c000000,                                       \
830         .wclear   = 0x1c000000,                                       \
831         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
832         .whandler = intel_hda_set_st_ctl,                             \
833         .reset    = SD_STS_FIFO_READY << 24                           \
834     },                                                                \
835     [ ST_REG(_i, ICH6_REG_SD_LPIB) ] = {                              \
836         .stream   = _i,                                               \
837         .name     = _t stringify(_i) " LPIB",                         \
838         .size     = 4,                                                \
839         .offset   = offsetof(IntelHDAState, st[_i].lpib),             \
840     },                                                                \
841     [ ST_REG(_i, ICH6_REG_SD_CBL) ] = {                               \
842         .stream   = _i,                                               \
843         .name     = _t stringify(_i) " CBL",                          \
844         .size     = 4,                                                \
845         .wmask    = 0xffffffff,                                       \
846         .offset   = offsetof(IntelHDAState, st[_i].cbl),              \
847     },                                                                \
848     [ ST_REG(_i, ICH6_REG_SD_LVI) ] = {                               \
849         .stream   = _i,                                               \
850         .name     = _t stringify(_i) " LVI",                          \
851         .size     = 2,                                                \
852         .wmask    = 0x00ff,                                           \
853         .offset   = offsetof(IntelHDAState, st[_i].lvi),              \
854     },                                                                \
855     [ ST_REG(_i, ICH6_REG_SD_FIFOSIZE) ] = {                          \
856         .stream   = _i,                                               \
857         .name     = _t stringify(_i) " FIFOS",                        \
858         .size     = 2,                                                \
859         .reset    = HDA_BUFFER_SIZE,                                  \
860     },                                                                \
861     [ ST_REG(_i, ICH6_REG_SD_FORMAT) ] = {                            \
862         .stream   = _i,                                               \
863         .name     = _t stringify(_i) " FMT",                          \
864         .size     = 2,                                                \
865         .wmask    = 0x7f7f,                                           \
866         .offset   = offsetof(IntelHDAState, st[_i].fmt),              \
867     },                                                                \
868     [ ST_REG(_i, ICH6_REG_SD_BDLPL) ] = {                             \
869         .stream   = _i,                                               \
870         .name     = _t stringify(_i) " BDLPL",                        \
871         .size     = 4,                                                \
872         .wmask    = 0xffffff80,                                       \
873         .offset   = offsetof(IntelHDAState, st[_i].bdlp_lbase),       \
874     },                                                                \
875     [ ST_REG(_i, ICH6_REG_SD_BDLPU) ] = {                             \
876         .stream   = _i,                                               \
877         .name     = _t stringify(_i) " BDLPU",                        \
878         .size     = 4,                                                \
879         .wmask    = 0xffffffff,                                       \
880         .offset   = offsetof(IntelHDAState, st[_i].bdlp_ubase),       \
881     },                                                                \
882 
883     HDA_STREAM("IN", 0)
884     HDA_STREAM("IN", 1)
885     HDA_STREAM("IN", 2)
886     HDA_STREAM("IN", 3)
887 
888     HDA_STREAM("OUT", 4)
889     HDA_STREAM("OUT", 5)
890     HDA_STREAM("OUT", 6)
891     HDA_STREAM("OUT", 7)
892 
893 };
894 
895 static const IntelHDAReg *intel_hda_reg_find(IntelHDAState *d, hwaddr addr)
896 {
897     const IntelHDAReg *reg;
898 
899     if (addr >= ARRAY_SIZE(regtab)) {
900         goto noreg;
901     }
902     reg = regtab+addr;
903     if (reg->name == NULL) {
904         goto noreg;
905     }
906     return reg;
907 
908 noreg:
909     dprint(d, 1, "unknown register, addr 0x%x\n", (int) addr);
910     return NULL;
911 }
912 
913 static uint32_t *intel_hda_reg_addr(IntelHDAState *d, const IntelHDAReg *reg)
914 {
915     uint8_t *addr = (void*)d;
916 
917     addr += reg->offset;
918     return (uint32_t*)addr;
919 }
920 
921 static void intel_hda_reg_write(IntelHDAState *d, const IntelHDAReg *reg, uint32_t val,
922                                 uint32_t wmask)
923 {
924     uint32_t *addr;
925     uint32_t old;
926 
927     if (!reg) {
928         return;
929     }
930     if (!reg->wmask) {
931         qemu_log_mask(LOG_GUEST_ERROR, "intel-hda: write to r/o reg %s\n",
932                       reg->name);
933         return;
934     }
935 
936     if (d->debug) {
937         time_t now = time(NULL);
938         if (d->last_write && d->last_reg == reg && d->last_val == val) {
939             d->repeat_count++;
940             if (d->last_sec != now) {
941                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
942                 d->last_sec = now;
943                 d->repeat_count = 0;
944             }
945         } else {
946             if (d->repeat_count) {
947                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
948             }
949             dprint(d, 2, "write %-16s: 0x%x (%x)\n", reg->name, val, wmask);
950             d->last_write = 1;
951             d->last_reg   = reg;
952             d->last_val   = val;
953             d->last_sec   = now;
954             d->repeat_count = 0;
955         }
956     }
957     assert(reg->offset != 0);
958 
959     addr = intel_hda_reg_addr(d, reg);
960     old = *addr;
961 
962     if (reg->shift) {
963         val <<= reg->shift;
964         wmask <<= reg->shift;
965     }
966     wmask &= reg->wmask;
967     *addr &= ~wmask;
968     *addr |= wmask & val;
969     *addr &= ~(val & reg->wclear);
970 
971     if (reg->whandler) {
972         reg->whandler(d, reg, old);
973     }
974 }
975 
976 static uint32_t intel_hda_reg_read(IntelHDAState *d, const IntelHDAReg *reg,
977                                    uint32_t rmask)
978 {
979     uint32_t *addr, ret;
980 
981     if (!reg) {
982         return 0;
983     }
984 
985     if (reg->rhandler) {
986         reg->rhandler(d, reg);
987     }
988 
989     if (reg->offset == 0) {
990         /* constant read-only register */
991         ret = reg->reset;
992     } else {
993         addr = intel_hda_reg_addr(d, reg);
994         ret = *addr;
995         if (reg->shift) {
996             ret >>= reg->shift;
997         }
998         ret &= rmask;
999     }
1000     if (d->debug) {
1001         time_t now = time(NULL);
1002         if (!d->last_write && d->last_reg == reg && d->last_val == ret) {
1003             d->repeat_count++;
1004             if (d->last_sec != now) {
1005                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1006                 d->last_sec = now;
1007                 d->repeat_count = 0;
1008             }
1009         } else {
1010             if (d->repeat_count) {
1011                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1012             }
1013             dprint(d, 2, "read  %-16s: 0x%x (%x)\n", reg->name, ret, rmask);
1014             d->last_write = 0;
1015             d->last_reg   = reg;
1016             d->last_val   = ret;
1017             d->last_sec   = now;
1018             d->repeat_count = 0;
1019         }
1020     }
1021     return ret;
1022 }
1023 
1024 static void intel_hda_regs_reset(IntelHDAState *d)
1025 {
1026     uint32_t *addr;
1027     int i;
1028 
1029     for (i = 0; i < ARRAY_SIZE(regtab); i++) {
1030         if (regtab[i].name == NULL) {
1031             continue;
1032         }
1033         if (regtab[i].offset == 0) {
1034             continue;
1035         }
1036         addr = intel_hda_reg_addr(d, regtab + i);
1037         *addr = regtab[i].reset;
1038     }
1039 }
1040 
1041 /* --------------------------------------------------------------------- */
1042 
1043 static void intel_hda_mmio_write(void *opaque, hwaddr addr, uint64_t val,
1044                                  unsigned size)
1045 {
1046     IntelHDAState *d = opaque;
1047     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1048 
1049     intel_hda_reg_write(d, reg, val, MAKE_64BIT_MASK(0, size * 8));
1050 }
1051 
1052 static uint64_t intel_hda_mmio_read(void *opaque, hwaddr addr, unsigned size)
1053 {
1054     IntelHDAState *d = opaque;
1055     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1056 
1057     return intel_hda_reg_read(d, reg, MAKE_64BIT_MASK(0, size * 8));
1058 }
1059 
1060 static const MemoryRegionOps intel_hda_mmio_ops = {
1061     .read = intel_hda_mmio_read,
1062     .write = intel_hda_mmio_write,
1063     .impl = {
1064         .min_access_size = 1,
1065         .max_access_size = 4,
1066     },
1067     .endianness = DEVICE_NATIVE_ENDIAN,
1068 };
1069 
1070 /* --------------------------------------------------------------------- */
1071 
1072 static void intel_hda_reset(DeviceState *dev)
1073 {
1074     BusChild *kid;
1075     IntelHDAState *d = INTEL_HDA(dev);
1076     HDACodecDevice *cdev;
1077 
1078     intel_hda_regs_reset(d);
1079     d->wall_base_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
1080 
1081     /* reset codecs */
1082     QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
1083         DeviceState *qdev = kid->child;
1084         cdev = HDA_CODEC_DEVICE(qdev);
1085         device_legacy_reset(DEVICE(cdev));
1086         d->state_sts |= (1 << cdev->cad);
1087     }
1088     intel_hda_update_irq(d);
1089 }
1090 
1091 static void intel_hda_realize(PCIDevice *pci, Error **errp)
1092 {
1093     IntelHDAState *d = INTEL_HDA(pci);
1094     uint8_t *conf = d->pci.config;
1095     Error *err = NULL;
1096     int ret;
1097 
1098     d->name = object_get_typename(OBJECT(d));
1099 
1100     pci_config_set_interrupt_pin(conf, 1);
1101 
1102     /* HDCTL off 0x40 bit 0 selects signaling mode (1-HDA, 0 - Ac97) 18.1.19 */
1103     conf[0x40] = 0x01;
1104 
1105     if (d->msi != ON_OFF_AUTO_OFF) {
1106         ret = msi_init(&d->pci, d->old_msi_addr ? 0x50 : 0x60,
1107                        1, true, false, &err);
1108         /* Any error other than -ENOTSUP(board's MSI support is broken)
1109          * is a programming error */
1110         assert(!ret || ret == -ENOTSUP);
1111         if (ret && d->msi == ON_OFF_AUTO_ON) {
1112             /* Can't satisfy user's explicit msi=on request, fail */
1113             error_append_hint(&err, "You have to use msi=auto (default) or "
1114                     "msi=off with this machine type.\n");
1115             error_propagate(errp, err);
1116             return;
1117         }
1118         assert(!err || d->msi == ON_OFF_AUTO_AUTO);
1119         /* With msi=auto, we fall back to MSI off silently */
1120         error_free(err);
1121     }
1122 
1123     memory_region_init(&d->container, OBJECT(d),
1124                        "intel-hda-container", 0x4000);
1125     memory_region_init_io(&d->mmio, OBJECT(d), &intel_hda_mmio_ops, d,
1126                           "intel-hda", 0x2000);
1127     memory_region_add_subregion(&d->container, 0x0000, &d->mmio);
1128     memory_region_init_alias(&d->alias, OBJECT(d), "intel-hda-alias",
1129                              &d->mmio, 0, 0x2000);
1130     memory_region_add_subregion(&d->container, 0x2000, &d->alias);
1131     pci_register_bar(&d->pci, 0, 0, &d->container);
1132 
1133     hda_codec_bus_init(DEVICE(pci), &d->codecs, sizeof(d->codecs),
1134                        intel_hda_response, intel_hda_xfer);
1135 }
1136 
1137 static void intel_hda_exit(PCIDevice *pci)
1138 {
1139     IntelHDAState *d = INTEL_HDA(pci);
1140 
1141     msi_uninit(&d->pci);
1142 }
1143 
1144 static int intel_hda_post_load(void *opaque, int version)
1145 {
1146     IntelHDAState* d = opaque;
1147     int i;
1148 
1149     dprint(d, 1, "%s\n", __func__);
1150     for (i = 0; i < ARRAY_SIZE(d->st); i++) {
1151         if (d->st[i].ctl & 0x02) {
1152             intel_hda_parse_bdl(d, &d->st[i]);
1153         }
1154     }
1155     intel_hda_update_irq(d);
1156     return 0;
1157 }
1158 
1159 static const VMStateDescription vmstate_intel_hda_stream = {
1160     .name = "intel-hda-stream",
1161     .version_id = 1,
1162     .fields = (VMStateField[]) {
1163         VMSTATE_UINT32(ctl, IntelHDAStream),
1164         VMSTATE_UINT32(lpib, IntelHDAStream),
1165         VMSTATE_UINT32(cbl, IntelHDAStream),
1166         VMSTATE_UINT32(lvi, IntelHDAStream),
1167         VMSTATE_UINT32(fmt, IntelHDAStream),
1168         VMSTATE_UINT32(bdlp_lbase, IntelHDAStream),
1169         VMSTATE_UINT32(bdlp_ubase, IntelHDAStream),
1170         VMSTATE_END_OF_LIST()
1171     }
1172 };
1173 
1174 static const VMStateDescription vmstate_intel_hda = {
1175     .name = "intel-hda",
1176     .version_id = 1,
1177     .post_load = intel_hda_post_load,
1178     .fields = (VMStateField[]) {
1179         VMSTATE_PCI_DEVICE(pci, IntelHDAState),
1180 
1181         /* registers */
1182         VMSTATE_UINT32(g_ctl, IntelHDAState),
1183         VMSTATE_UINT32(wake_en, IntelHDAState),
1184         VMSTATE_UINT32(state_sts, IntelHDAState),
1185         VMSTATE_UINT32(int_ctl, IntelHDAState),
1186         VMSTATE_UINT32(int_sts, IntelHDAState),
1187         VMSTATE_UINT32(wall_clk, IntelHDAState),
1188         VMSTATE_UINT32(corb_lbase, IntelHDAState),
1189         VMSTATE_UINT32(corb_ubase, IntelHDAState),
1190         VMSTATE_UINT32(corb_rp, IntelHDAState),
1191         VMSTATE_UINT32(corb_wp, IntelHDAState),
1192         VMSTATE_UINT32(corb_ctl, IntelHDAState),
1193         VMSTATE_UINT32(corb_sts, IntelHDAState),
1194         VMSTATE_UINT32(corb_size, IntelHDAState),
1195         VMSTATE_UINT32(rirb_lbase, IntelHDAState),
1196         VMSTATE_UINT32(rirb_ubase, IntelHDAState),
1197         VMSTATE_UINT32(rirb_wp, IntelHDAState),
1198         VMSTATE_UINT32(rirb_cnt, IntelHDAState),
1199         VMSTATE_UINT32(rirb_ctl, IntelHDAState),
1200         VMSTATE_UINT32(rirb_sts, IntelHDAState),
1201         VMSTATE_UINT32(rirb_size, IntelHDAState),
1202         VMSTATE_UINT32(dp_lbase, IntelHDAState),
1203         VMSTATE_UINT32(dp_ubase, IntelHDAState),
1204         VMSTATE_UINT32(icw, IntelHDAState),
1205         VMSTATE_UINT32(irr, IntelHDAState),
1206         VMSTATE_UINT32(ics, IntelHDAState),
1207         VMSTATE_STRUCT_ARRAY(st, IntelHDAState, 8, 0,
1208                              vmstate_intel_hda_stream,
1209                              IntelHDAStream),
1210 
1211         /* additional state info */
1212         VMSTATE_UINT32(rirb_count, IntelHDAState),
1213         VMSTATE_INT64(wall_base_ns, IntelHDAState),
1214 
1215         VMSTATE_END_OF_LIST()
1216     }
1217 };
1218 
1219 static Property intel_hda_properties[] = {
1220     DEFINE_PROP_UINT32("debug", IntelHDAState, debug, 0),
1221     DEFINE_PROP_ON_OFF_AUTO("msi", IntelHDAState, msi, ON_OFF_AUTO_AUTO),
1222     DEFINE_PROP_BOOL("old_msi_addr", IntelHDAState, old_msi_addr, false),
1223     DEFINE_PROP_END_OF_LIST(),
1224 };
1225 
1226 static void intel_hda_class_init(ObjectClass *klass, void *data)
1227 {
1228     DeviceClass *dc = DEVICE_CLASS(klass);
1229     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1230 
1231     k->realize = intel_hda_realize;
1232     k->exit = intel_hda_exit;
1233     k->vendor_id = PCI_VENDOR_ID_INTEL;
1234     k->class_id = PCI_CLASS_MULTIMEDIA_HD_AUDIO;
1235     dc->reset = intel_hda_reset;
1236     dc->vmsd = &vmstate_intel_hda;
1237     device_class_set_props(dc, intel_hda_properties);
1238 }
1239 
1240 static void intel_hda_class_init_ich6(ObjectClass *klass, void *data)
1241 {
1242     DeviceClass *dc = DEVICE_CLASS(klass);
1243     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1244 
1245     k->device_id = 0x2668;
1246     k->revision = 1;
1247     set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
1248     dc->desc = "Intel HD Audio Controller (ich6)";
1249 }
1250 
1251 static void intel_hda_class_init_ich9(ObjectClass *klass, void *data)
1252 {
1253     DeviceClass *dc = DEVICE_CLASS(klass);
1254     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1255 
1256     k->device_id = 0x293e;
1257     k->revision = 3;
1258     set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
1259     dc->desc = "Intel HD Audio Controller (ich9)";
1260 }
1261 
1262 static const TypeInfo intel_hda_info = {
1263     .name          = TYPE_INTEL_HDA_GENERIC,
1264     .parent        = TYPE_PCI_DEVICE,
1265     .instance_size = sizeof(IntelHDAState),
1266     .class_init    = intel_hda_class_init,
1267     .abstract      = true,
1268     .interfaces = (InterfaceInfo[]) {
1269         { INTERFACE_CONVENTIONAL_PCI_DEVICE },
1270         { },
1271     },
1272 };
1273 
1274 static const TypeInfo intel_hda_info_ich6 = {
1275     .name          = "intel-hda",
1276     .parent        = TYPE_INTEL_HDA_GENERIC,
1277     .class_init    = intel_hda_class_init_ich6,
1278 };
1279 
1280 static const TypeInfo intel_hda_info_ich9 = {
1281     .name          = "ich9-intel-hda",
1282     .parent        = TYPE_INTEL_HDA_GENERIC,
1283     .class_init    = intel_hda_class_init_ich9,
1284 };
1285 
1286 static void hda_codec_device_class_init(ObjectClass *klass, void *data)
1287 {
1288     DeviceClass *k = DEVICE_CLASS(klass);
1289     k->realize = hda_codec_dev_realize;
1290     k->unrealize = hda_codec_dev_unrealize;
1291     set_bit(DEVICE_CATEGORY_SOUND, k->categories);
1292     k->bus_type = TYPE_HDA_BUS;
1293     device_class_set_props(k, hda_props);
1294 }
1295 
1296 static const TypeInfo hda_codec_device_type_info = {
1297     .name = TYPE_HDA_CODEC_DEVICE,
1298     .parent = TYPE_DEVICE,
1299     .instance_size = sizeof(HDACodecDevice),
1300     .abstract = true,
1301     .class_size = sizeof(HDACodecDeviceClass),
1302     .class_init = hda_codec_device_class_init,
1303 };
1304 
1305 /*
1306  * create intel hda controller with codec attached to it,
1307  * so '-soundhw hda' works.
1308  */
1309 static int intel_hda_and_codec_init(PCIBus *bus)
1310 {
1311     DeviceState *controller;
1312     BusState *hdabus;
1313     DeviceState *codec;
1314 
1315     warn_report("'-soundhw hda' is deprecated, "
1316                 "please use '-device intel-hda -device hda-duplex' instead");
1317     controller = DEVICE(pci_create_simple(bus, -1, "intel-hda"));
1318     hdabus = QLIST_FIRST(&controller->child_bus);
1319     codec = qdev_new("hda-duplex");
1320     qdev_realize_and_unref(codec, hdabus, &error_fatal);
1321     return 0;
1322 }
1323 
1324 static void intel_hda_register_types(void)
1325 {
1326     type_register_static(&hda_codec_bus_info);
1327     type_register_static(&intel_hda_info);
1328     type_register_static(&intel_hda_info_ich6);
1329     type_register_static(&intel_hda_info_ich9);
1330     type_register_static(&hda_codec_device_type_info);
1331     pci_register_soundhw("hda", "Intel HD Audio", intel_hda_and_codec_init);
1332 }
1333 
1334 type_init(intel_hda_register_types)
1335