xref: /openbmc/qemu/hw/audio/intel-hda.c (revision f7d82e9b)
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 
36 /* --------------------------------------------------------------------- */
37 /* hda bus                                                               */
38 
39 static Property hda_props[] = {
40     DEFINE_PROP_UINT32("cad", HDACodecDevice, cad, -1),
41     DEFINE_PROP_END_OF_LIST()
42 };
43 
44 static const TypeInfo hda_codec_bus_info = {
45     .name = TYPE_HDA_BUS,
46     .parent = TYPE_BUS,
47     .instance_size = sizeof(HDACodecBus),
48 };
49 
50 void hda_codec_bus_init(DeviceState *dev, HDACodecBus *bus, size_t bus_size,
51                         hda_codec_response_func response,
52                         hda_codec_xfer_func xfer)
53 {
54     qbus_create_inplace(bus, bus_size, TYPE_HDA_BUS, dev, NULL);
55     bus->response = response;
56     bus->xfer = xfer;
57 }
58 
59 static void hda_codec_dev_realize(DeviceState *qdev, Error **errp)
60 {
61     HDACodecBus *bus = HDA_BUS(qdev->parent_bus);
62     HDACodecDevice *dev = HDA_CODEC_DEVICE(qdev);
63     HDACodecDeviceClass *cdc = HDA_CODEC_DEVICE_GET_CLASS(dev);
64 
65     if (dev->cad == -1) {
66         dev->cad = bus->next_cad;
67     }
68     if (dev->cad >= 15) {
69         error_setg(errp, "HDA audio codec address is full");
70         return;
71     }
72     bus->next_cad = dev->cad + 1;
73     if (cdc->init(dev) != 0) {
74         error_setg(errp, "HDA audio init failed");
75     }
76 }
77 
78 static void hda_codec_dev_unrealize(DeviceState *qdev)
79 {
80     HDACodecDevice *dev = HDA_CODEC_DEVICE(qdev);
81     HDACodecDeviceClass *cdc = HDA_CODEC_DEVICE_GET_CLASS(dev);
82 
83     if (cdc->exit) {
84         cdc->exit(dev);
85     }
86 }
87 
88 HDACodecDevice *hda_codec_find(HDACodecBus *bus, uint32_t cad)
89 {
90     BusChild *kid;
91     HDACodecDevice *cdev;
92 
93     QTAILQ_FOREACH(kid, &bus->qbus.children, sibling) {
94         DeviceState *qdev = kid->child;
95         cdev = HDA_CODEC_DEVICE(qdev);
96         if (cdev->cad == cad) {
97             return cdev;
98         }
99     }
100     return NULL;
101 }
102 
103 void hda_codec_response(HDACodecDevice *dev, bool solicited, uint32_t response)
104 {
105     HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
106     bus->response(dev, solicited, response);
107 }
108 
109 bool hda_codec_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
110                     uint8_t *buf, uint32_t len)
111 {
112     HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
113     return bus->xfer(dev, stnr, output, buf, len);
114 }
115 
116 /* --------------------------------------------------------------------- */
117 /* intel hda emulation                                                   */
118 
119 typedef struct IntelHDAStream IntelHDAStream;
120 typedef struct IntelHDAState IntelHDAState;
121 typedef struct IntelHDAReg IntelHDAReg;
122 
123 typedef struct bpl {
124     uint64_t addr;
125     uint32_t len;
126     uint32_t flags;
127 } bpl;
128 
129 struct IntelHDAStream {
130     /* registers */
131     uint32_t ctl;
132     uint32_t lpib;
133     uint32_t cbl;
134     uint32_t lvi;
135     uint32_t fmt;
136     uint32_t bdlp_lbase;
137     uint32_t bdlp_ubase;
138 
139     /* state */
140     bpl      *bpl;
141     uint32_t bentries;
142     uint32_t bsize, be, bp;
143 };
144 
145 struct IntelHDAState {
146     PCIDevice pci;
147     const char *name;
148     HDACodecBus codecs;
149 
150     /* registers */
151     uint32_t g_ctl;
152     uint32_t wake_en;
153     uint32_t state_sts;
154     uint32_t int_ctl;
155     uint32_t int_sts;
156     uint32_t wall_clk;
157 
158     uint32_t corb_lbase;
159     uint32_t corb_ubase;
160     uint32_t corb_rp;
161     uint32_t corb_wp;
162     uint32_t corb_ctl;
163     uint32_t corb_sts;
164     uint32_t corb_size;
165 
166     uint32_t rirb_lbase;
167     uint32_t rirb_ubase;
168     uint32_t rirb_wp;
169     uint32_t rirb_cnt;
170     uint32_t rirb_ctl;
171     uint32_t rirb_sts;
172     uint32_t rirb_size;
173 
174     uint32_t dp_lbase;
175     uint32_t dp_ubase;
176 
177     uint32_t icw;
178     uint32_t irr;
179     uint32_t ics;
180 
181     /* streams */
182     IntelHDAStream st[8];
183 
184     /* state */
185     MemoryRegion container;
186     MemoryRegion mmio;
187     MemoryRegion alias;
188     uint32_t rirb_count;
189     int64_t wall_base_ns;
190 
191     /* debug logging */
192     const IntelHDAReg *last_reg;
193     uint32_t last_val;
194     uint32_t last_write;
195     uint32_t last_sec;
196     uint32_t repeat_count;
197 
198     /* properties */
199     uint32_t debug;
200     OnOffAuto msi;
201     bool old_msi_addr;
202 };
203 
204 #define TYPE_INTEL_HDA_GENERIC "intel-hda-generic"
205 
206 #define INTEL_HDA(obj) \
207     OBJECT_CHECK(IntelHDAState, (obj), TYPE_INTEL_HDA_GENERIC)
208 
209 struct IntelHDAReg {
210     const char *name;      /* register name */
211     uint32_t   size;       /* size in bytes */
212     uint32_t   reset;      /* reset value */
213     uint32_t   wmask;      /* write mask */
214     uint32_t   wclear;     /* write 1 to clear bits */
215     uint32_t   offset;     /* location in IntelHDAState */
216     uint32_t   shift;      /* byte access entries for dwords */
217     uint32_t   stream;
218     void       (*whandler)(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old);
219     void       (*rhandler)(IntelHDAState *d, const IntelHDAReg *reg);
220 };
221 
222 static void intel_hda_reset(DeviceState *dev);
223 
224 /* --------------------------------------------------------------------- */
225 
226 static hwaddr intel_hda_addr(uint32_t lbase, uint32_t ubase)
227 {
228     return ((uint64_t)ubase << 32) | lbase;
229 }
230 
231 static void intel_hda_update_int_sts(IntelHDAState *d)
232 {
233     uint32_t sts = 0;
234     uint32_t i;
235 
236     /* update controller status */
237     if (d->rirb_sts & ICH6_RBSTS_IRQ) {
238         sts |= (1 << 30);
239     }
240     if (d->rirb_sts & ICH6_RBSTS_OVERRUN) {
241         sts |= (1 << 30);
242     }
243     if (d->state_sts & d->wake_en) {
244         sts |= (1 << 30);
245     }
246 
247     /* update stream status */
248     for (i = 0; i < 8; i++) {
249         /* buffer completion interrupt */
250         if (d->st[i].ctl & (1 << 26)) {
251             sts |= (1 << i);
252         }
253     }
254 
255     /* update global status */
256     if (sts & d->int_ctl) {
257         sts |= (1U << 31);
258     }
259 
260     d->int_sts = sts;
261 }
262 
263 static void intel_hda_update_irq(IntelHDAState *d)
264 {
265     bool msi = msi_enabled(&d->pci);
266     int level;
267 
268     intel_hda_update_int_sts(d);
269     if (d->int_sts & (1U << 31) && d->int_ctl & (1U << 31)) {
270         level = 1;
271     } else {
272         level = 0;
273     }
274     dprint(d, 2, "%s: level %d [%s]\n", __func__,
275            level, msi ? "msi" : "intx");
276     if (msi) {
277         if (level) {
278             msi_notify(&d->pci, 0);
279         }
280     } else {
281         pci_set_irq(&d->pci, level);
282     }
283 }
284 
285 static int intel_hda_send_command(IntelHDAState *d, uint32_t verb)
286 {
287     uint32_t cad, nid, data;
288     HDACodecDevice *codec;
289     HDACodecDeviceClass *cdc;
290 
291     cad = (verb >> 28) & 0x0f;
292     if (verb & (1 << 27)) {
293         /* indirect node addressing, not specified in HDA 1.0 */
294         dprint(d, 1, "%s: indirect node addressing (guest bug?)\n", __func__);
295         return -1;
296     }
297     nid = (verb >> 20) & 0x7f;
298     data = verb & 0xfffff;
299 
300     codec = hda_codec_find(&d->codecs, cad);
301     if (codec == NULL) {
302         dprint(d, 1, "%s: addressed non-existing codec\n", __func__);
303         return -1;
304     }
305     cdc = HDA_CODEC_DEVICE_GET_CLASS(codec);
306     cdc->command(codec, nid, data);
307     return 0;
308 }
309 
310 static void intel_hda_corb_run(IntelHDAState *d)
311 {
312     hwaddr addr;
313     uint32_t rp, verb;
314 
315     if (d->ics & ICH6_IRS_BUSY) {
316         dprint(d, 2, "%s: [icw] verb 0x%08x\n", __func__, d->icw);
317         intel_hda_send_command(d, d->icw);
318         return;
319     }
320 
321     for (;;) {
322         if (!(d->corb_ctl & ICH6_CORBCTL_RUN)) {
323             dprint(d, 2, "%s: !run\n", __func__);
324             return;
325         }
326         if ((d->corb_rp & 0xff) == d->corb_wp) {
327             dprint(d, 2, "%s: corb ring empty\n", __func__);
328             return;
329         }
330         if (d->rirb_count == d->rirb_cnt) {
331             dprint(d, 2, "%s: rirb count reached\n", __func__);
332             return;
333         }
334 
335         rp = (d->corb_rp + 1) & 0xff;
336         addr = intel_hda_addr(d->corb_lbase, d->corb_ubase);
337         verb = ldl_le_pci_dma(&d->pci, addr + 4*rp);
338         d->corb_rp = rp;
339 
340         dprint(d, 2, "%s: [rp 0x%x] verb 0x%08x\n", __func__, rp, verb);
341         intel_hda_send_command(d, verb);
342     }
343 }
344 
345 static void intel_hda_response(HDACodecDevice *dev, bool solicited, uint32_t response)
346 {
347     HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
348     IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
349     hwaddr addr;
350     uint32_t wp, ex;
351 
352     if (d->ics & ICH6_IRS_BUSY) {
353         dprint(d, 2, "%s: [irr] response 0x%x, cad 0x%x\n",
354                __func__, response, dev->cad);
355         d->irr = response;
356         d->ics &= ~(ICH6_IRS_BUSY | 0xf0);
357         d->ics |= (ICH6_IRS_VALID | (dev->cad << 4));
358         return;
359     }
360 
361     if (!(d->rirb_ctl & ICH6_RBCTL_DMA_EN)) {
362         dprint(d, 1, "%s: rirb dma disabled, drop codec response\n", __func__);
363         return;
364     }
365 
366     ex = (solicited ? 0 : (1 << 4)) | dev->cad;
367     wp = (d->rirb_wp + 1) & 0xff;
368     addr = intel_hda_addr(d->rirb_lbase, d->rirb_ubase);
369     stl_le_pci_dma(&d->pci, addr + 8*wp, response);
370     stl_le_pci_dma(&d->pci, addr + 8*wp + 4, ex);
371     d->rirb_wp = wp;
372 
373     dprint(d, 2, "%s: [wp 0x%x] response 0x%x, extra 0x%x\n",
374            __func__, wp, response, ex);
375 
376     d->rirb_count++;
377     if (d->rirb_count == d->rirb_cnt) {
378         dprint(d, 2, "%s: rirb count reached (%d)\n", __func__, d->rirb_count);
379         if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
380             d->rirb_sts |= ICH6_RBSTS_IRQ;
381             intel_hda_update_irq(d);
382         }
383     } else if ((d->corb_rp & 0xff) == d->corb_wp) {
384         dprint(d, 2, "%s: corb ring empty (%d/%d)\n", __func__,
385                d->rirb_count, d->rirb_cnt);
386         if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
387             d->rirb_sts |= ICH6_RBSTS_IRQ;
388             intel_hda_update_irq(d);
389         }
390     }
391 }
392 
393 static bool intel_hda_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
394                            uint8_t *buf, uint32_t len)
395 {
396     HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
397     IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
398     hwaddr addr;
399     uint32_t s, copy, left;
400     IntelHDAStream *st;
401     bool irq = false;
402 
403     st = output ? d->st + 4 : d->st;
404     for (s = 0; s < 4; s++) {
405         if (stnr == ((st[s].ctl >> 20) & 0x0f)) {
406             st = st + s;
407             break;
408         }
409     }
410     if (s == 4) {
411         return false;
412     }
413     if (st->bpl == NULL) {
414         return false;
415     }
416 
417     left = len;
418     s = st->bentries;
419     while (left > 0 && s-- > 0) {
420         copy = left;
421         if (copy > st->bsize - st->lpib)
422             copy = st->bsize - st->lpib;
423         if (copy > st->bpl[st->be].len - st->bp)
424             copy = st->bpl[st->be].len - st->bp;
425 
426         dprint(d, 3, "dma: entry %d, pos %d/%d, copy %d\n",
427                st->be, st->bp, st->bpl[st->be].len, copy);
428 
429         pci_dma_rw(&d->pci, st->bpl[st->be].addr + st->bp, buf, copy, !output);
430         st->lpib += copy;
431         st->bp += copy;
432         buf += copy;
433         left -= copy;
434 
435         if (st->bpl[st->be].len == st->bp) {
436             /* bpl entry filled */
437             if (st->bpl[st->be].flags & 0x01) {
438                 irq = true;
439             }
440             st->bp = 0;
441             st->be++;
442             if (st->be == st->bentries) {
443                 /* bpl wrap around */
444                 st->be = 0;
445                 st->lpib = 0;
446             }
447         }
448     }
449     if (d->dp_lbase & 0x01) {
450         s = st - d->st;
451         addr = intel_hda_addr(d->dp_lbase & ~0x01, d->dp_ubase);
452         stl_le_pci_dma(&d->pci, addr + 8*s, st->lpib);
453     }
454     dprint(d, 3, "dma: --\n");
455 
456     if (irq) {
457         st->ctl |= (1 << 26); /* buffer completion interrupt */
458         intel_hda_update_irq(d);
459     }
460     return true;
461 }
462 
463 static void intel_hda_parse_bdl(IntelHDAState *d, IntelHDAStream *st)
464 {
465     hwaddr addr;
466     uint8_t buf[16];
467     uint32_t i;
468 
469     addr = intel_hda_addr(st->bdlp_lbase, st->bdlp_ubase);
470     st->bentries = st->lvi +1;
471     g_free(st->bpl);
472     st->bpl = g_malloc(sizeof(bpl) * st->bentries);
473     for (i = 0; i < st->bentries; i++, addr += 16) {
474         pci_dma_read(&d->pci, addr, buf, 16);
475         st->bpl[i].addr  = le64_to_cpu(*(uint64_t *)buf);
476         st->bpl[i].len   = le32_to_cpu(*(uint32_t *)(buf + 8));
477         st->bpl[i].flags = le32_to_cpu(*(uint32_t *)(buf + 12));
478         dprint(d, 1, "bdl/%d: 0x%" PRIx64 " +0x%x, 0x%x\n",
479                i, st->bpl[i].addr, st->bpl[i].len, st->bpl[i].flags);
480     }
481 
482     st->bsize = st->cbl;
483     st->lpib  = 0;
484     st->be    = 0;
485     st->bp    = 0;
486 }
487 
488 static void intel_hda_notify_codecs(IntelHDAState *d, uint32_t stream, bool running, bool output)
489 {
490     BusChild *kid;
491     HDACodecDevice *cdev;
492 
493     QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
494         DeviceState *qdev = kid->child;
495         HDACodecDeviceClass *cdc;
496 
497         cdev = HDA_CODEC_DEVICE(qdev);
498         cdc = HDA_CODEC_DEVICE_GET_CLASS(cdev);
499         if (cdc->stream) {
500             cdc->stream(cdev, stream, running, output);
501         }
502     }
503 }
504 
505 /* --------------------------------------------------------------------- */
506 
507 static void intel_hda_set_g_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
508 {
509     if ((d->g_ctl & ICH6_GCTL_RESET) == 0) {
510         intel_hda_reset(DEVICE(d));
511     }
512 }
513 
514 static void intel_hda_set_wake_en(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
515 {
516     intel_hda_update_irq(d);
517 }
518 
519 static void intel_hda_set_state_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
520 {
521     intel_hda_update_irq(d);
522 }
523 
524 static void intel_hda_set_int_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
525 {
526     intel_hda_update_irq(d);
527 }
528 
529 static void intel_hda_get_wall_clk(IntelHDAState *d, const IntelHDAReg *reg)
530 {
531     int64_t ns;
532 
533     ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - d->wall_base_ns;
534     d->wall_clk = (uint32_t)(ns * 24 / 1000);  /* 24 MHz */
535 }
536 
537 static void intel_hda_set_corb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
538 {
539     intel_hda_corb_run(d);
540 }
541 
542 static void intel_hda_set_corb_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
543 {
544     intel_hda_corb_run(d);
545 }
546 
547 static void intel_hda_set_rirb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
548 {
549     if (d->rirb_wp & ICH6_RIRBWP_RST) {
550         d->rirb_wp = 0;
551     }
552 }
553 
554 static void intel_hda_set_rirb_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
555 {
556     intel_hda_update_irq(d);
557 
558     if ((old & ICH6_RBSTS_IRQ) && !(d->rirb_sts & ICH6_RBSTS_IRQ)) {
559         /* cleared ICH6_RBSTS_IRQ */
560         d->rirb_count = 0;
561         intel_hda_corb_run(d);
562     }
563 }
564 
565 static void intel_hda_set_ics(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
566 {
567     if (d->ics & ICH6_IRS_BUSY) {
568         intel_hda_corb_run(d);
569     }
570 }
571 
572 static void intel_hda_set_st_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
573 {
574     bool output = reg->stream >= 4;
575     IntelHDAStream *st = d->st + reg->stream;
576 
577     if (st->ctl & 0x01) {
578         /* reset */
579         dprint(d, 1, "st #%d: reset\n", reg->stream);
580         st->ctl = SD_STS_FIFO_READY << 24;
581     }
582     if ((st->ctl & 0x02) != (old & 0x02)) {
583         uint32_t stnr = (st->ctl >> 20) & 0x0f;
584         /* run bit flipped */
585         if (st->ctl & 0x02) {
586             /* start */
587             dprint(d, 1, "st #%d: start %d (ring buf %d bytes)\n",
588                    reg->stream, stnr, st->cbl);
589             intel_hda_parse_bdl(d, st);
590             intel_hda_notify_codecs(d, stnr, true, output);
591         } else {
592             /* stop */
593             dprint(d, 1, "st #%d: stop %d\n", reg->stream, stnr);
594             intel_hda_notify_codecs(d, stnr, false, output);
595         }
596     }
597     intel_hda_update_irq(d);
598 }
599 
600 /* --------------------------------------------------------------------- */
601 
602 #define ST_REG(_n, _o) (0x80 + (_n) * 0x20 + (_o))
603 
604 static const struct IntelHDAReg regtab[] = {
605     /* global */
606     [ ICH6_REG_GCAP ] = {
607         .name     = "GCAP",
608         .size     = 2,
609         .reset    = 0x4401,
610     },
611     [ ICH6_REG_VMIN ] = {
612         .name     = "VMIN",
613         .size     = 1,
614     },
615     [ ICH6_REG_VMAJ ] = {
616         .name     = "VMAJ",
617         .size     = 1,
618         .reset    = 1,
619     },
620     [ ICH6_REG_OUTPAY ] = {
621         .name     = "OUTPAY",
622         .size     = 2,
623         .reset    = 0x3c,
624     },
625     [ ICH6_REG_INPAY ] = {
626         .name     = "INPAY",
627         .size     = 2,
628         .reset    = 0x1d,
629     },
630     [ ICH6_REG_GCTL ] = {
631         .name     = "GCTL",
632         .size     = 4,
633         .wmask    = 0x0103,
634         .offset   = offsetof(IntelHDAState, g_ctl),
635         .whandler = intel_hda_set_g_ctl,
636     },
637     [ ICH6_REG_WAKEEN ] = {
638         .name     = "WAKEEN",
639         .size     = 2,
640         .wmask    = 0x7fff,
641         .offset   = offsetof(IntelHDAState, wake_en),
642         .whandler = intel_hda_set_wake_en,
643     },
644     [ ICH6_REG_STATESTS ] = {
645         .name     = "STATESTS",
646         .size     = 2,
647         .wmask    = 0x7fff,
648         .wclear   = 0x7fff,
649         .offset   = offsetof(IntelHDAState, state_sts),
650         .whandler = intel_hda_set_state_sts,
651     },
652 
653     /* interrupts */
654     [ ICH6_REG_INTCTL ] = {
655         .name     = "INTCTL",
656         .size     = 4,
657         .wmask    = 0xc00000ff,
658         .offset   = offsetof(IntelHDAState, int_ctl),
659         .whandler = intel_hda_set_int_ctl,
660     },
661     [ ICH6_REG_INTSTS ] = {
662         .name     = "INTSTS",
663         .size     = 4,
664         .wmask    = 0xc00000ff,
665         .wclear   = 0xc00000ff,
666         .offset   = offsetof(IntelHDAState, int_sts),
667     },
668 
669     /* misc */
670     [ ICH6_REG_WALLCLK ] = {
671         .name     = "WALLCLK",
672         .size     = 4,
673         .offset   = offsetof(IntelHDAState, wall_clk),
674         .rhandler = intel_hda_get_wall_clk,
675     },
676 
677     /* dma engine */
678     [ ICH6_REG_CORBLBASE ] = {
679         .name     = "CORBLBASE",
680         .size     = 4,
681         .wmask    = 0xffffff80,
682         .offset   = offsetof(IntelHDAState, corb_lbase),
683     },
684     [ ICH6_REG_CORBUBASE ] = {
685         .name     = "CORBUBASE",
686         .size     = 4,
687         .wmask    = 0xffffffff,
688         .offset   = offsetof(IntelHDAState, corb_ubase),
689     },
690     [ ICH6_REG_CORBWP ] = {
691         .name     = "CORBWP",
692         .size     = 2,
693         .wmask    = 0xff,
694         .offset   = offsetof(IntelHDAState, corb_wp),
695         .whandler = intel_hda_set_corb_wp,
696     },
697     [ ICH6_REG_CORBRP ] = {
698         .name     = "CORBRP",
699         .size     = 2,
700         .wmask    = 0x80ff,
701         .offset   = offsetof(IntelHDAState, corb_rp),
702     },
703     [ ICH6_REG_CORBCTL ] = {
704         .name     = "CORBCTL",
705         .size     = 1,
706         .wmask    = 0x03,
707         .offset   = offsetof(IntelHDAState, corb_ctl),
708         .whandler = intel_hda_set_corb_ctl,
709     },
710     [ ICH6_REG_CORBSTS ] = {
711         .name     = "CORBSTS",
712         .size     = 1,
713         .wmask    = 0x01,
714         .wclear   = 0x01,
715         .offset   = offsetof(IntelHDAState, corb_sts),
716     },
717     [ ICH6_REG_CORBSIZE ] = {
718         .name     = "CORBSIZE",
719         .size     = 1,
720         .reset    = 0x42,
721         .offset   = offsetof(IntelHDAState, corb_size),
722     },
723     [ ICH6_REG_RIRBLBASE ] = {
724         .name     = "RIRBLBASE",
725         .size     = 4,
726         .wmask    = 0xffffff80,
727         .offset   = offsetof(IntelHDAState, rirb_lbase),
728     },
729     [ ICH6_REG_RIRBUBASE ] = {
730         .name     = "RIRBUBASE",
731         .size     = 4,
732         .wmask    = 0xffffffff,
733         .offset   = offsetof(IntelHDAState, rirb_ubase),
734     },
735     [ ICH6_REG_RIRBWP ] = {
736         .name     = "RIRBWP",
737         .size     = 2,
738         .wmask    = 0x8000,
739         .offset   = offsetof(IntelHDAState, rirb_wp),
740         .whandler = intel_hda_set_rirb_wp,
741     },
742     [ ICH6_REG_RINTCNT ] = {
743         .name     = "RINTCNT",
744         .size     = 2,
745         .wmask    = 0xff,
746         .offset   = offsetof(IntelHDAState, rirb_cnt),
747     },
748     [ ICH6_REG_RIRBCTL ] = {
749         .name     = "RIRBCTL",
750         .size     = 1,
751         .wmask    = 0x07,
752         .offset   = offsetof(IntelHDAState, rirb_ctl),
753     },
754     [ ICH6_REG_RIRBSTS ] = {
755         .name     = "RIRBSTS",
756         .size     = 1,
757         .wmask    = 0x05,
758         .wclear   = 0x05,
759         .offset   = offsetof(IntelHDAState, rirb_sts),
760         .whandler = intel_hda_set_rirb_sts,
761     },
762     [ ICH6_REG_RIRBSIZE ] = {
763         .name     = "RIRBSIZE",
764         .size     = 1,
765         .reset    = 0x42,
766         .offset   = offsetof(IntelHDAState, rirb_size),
767     },
768 
769     [ ICH6_REG_DPLBASE ] = {
770         .name     = "DPLBASE",
771         .size     = 4,
772         .wmask    = 0xffffff81,
773         .offset   = offsetof(IntelHDAState, dp_lbase),
774     },
775     [ ICH6_REG_DPUBASE ] = {
776         .name     = "DPUBASE",
777         .size     = 4,
778         .wmask    = 0xffffffff,
779         .offset   = offsetof(IntelHDAState, dp_ubase),
780     },
781 
782     [ ICH6_REG_IC ] = {
783         .name     = "ICW",
784         .size     = 4,
785         .wmask    = 0xffffffff,
786         .offset   = offsetof(IntelHDAState, icw),
787     },
788     [ ICH6_REG_IR ] = {
789         .name     = "IRR",
790         .size     = 4,
791         .offset   = offsetof(IntelHDAState, irr),
792     },
793     [ ICH6_REG_IRS ] = {
794         .name     = "ICS",
795         .size     = 2,
796         .wmask    = 0x0003,
797         .wclear   = 0x0002,
798         .offset   = offsetof(IntelHDAState, ics),
799         .whandler = intel_hda_set_ics,
800     },
801 
802 #define HDA_STREAM(_t, _i)                                            \
803     [ ST_REG(_i, ICH6_REG_SD_CTL) ] = {                               \
804         .stream   = _i,                                               \
805         .name     = _t stringify(_i) " CTL",                          \
806         .size     = 4,                                                \
807         .wmask    = 0x1cff001f,                                       \
808         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
809         .whandler = intel_hda_set_st_ctl,                             \
810     },                                                                \
811     [ ST_REG(_i, ICH6_REG_SD_CTL) + 2] = {                            \
812         .stream   = _i,                                               \
813         .name     = _t stringify(_i) " CTL(stnr)",                    \
814         .size     = 1,                                                \
815         .shift    = 16,                                               \
816         .wmask    = 0x00ff0000,                                       \
817         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
818         .whandler = intel_hda_set_st_ctl,                             \
819     },                                                                \
820     [ ST_REG(_i, ICH6_REG_SD_STS)] = {                                \
821         .stream   = _i,                                               \
822         .name     = _t stringify(_i) " CTL(sts)",                     \
823         .size     = 1,                                                \
824         .shift    = 24,                                               \
825         .wmask    = 0x1c000000,                                       \
826         .wclear   = 0x1c000000,                                       \
827         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
828         .whandler = intel_hda_set_st_ctl,                             \
829         .reset    = SD_STS_FIFO_READY << 24                           \
830     },                                                                \
831     [ ST_REG(_i, ICH6_REG_SD_LPIB) ] = {                              \
832         .stream   = _i,                                               \
833         .name     = _t stringify(_i) " LPIB",                         \
834         .size     = 4,                                                \
835         .offset   = offsetof(IntelHDAState, st[_i].lpib),             \
836     },                                                                \
837     [ ST_REG(_i, ICH6_REG_SD_CBL) ] = {                               \
838         .stream   = _i,                                               \
839         .name     = _t stringify(_i) " CBL",                          \
840         .size     = 4,                                                \
841         .wmask    = 0xffffffff,                                       \
842         .offset   = offsetof(IntelHDAState, st[_i].cbl),              \
843     },                                                                \
844     [ ST_REG(_i, ICH6_REG_SD_LVI) ] = {                               \
845         .stream   = _i,                                               \
846         .name     = _t stringify(_i) " LVI",                          \
847         .size     = 2,                                                \
848         .wmask    = 0x00ff,                                           \
849         .offset   = offsetof(IntelHDAState, st[_i].lvi),              \
850     },                                                                \
851     [ ST_REG(_i, ICH6_REG_SD_FIFOSIZE) ] = {                          \
852         .stream   = _i,                                               \
853         .name     = _t stringify(_i) " FIFOS",                        \
854         .size     = 2,                                                \
855         .reset    = HDA_BUFFER_SIZE,                                  \
856     },                                                                \
857     [ ST_REG(_i, ICH6_REG_SD_FORMAT) ] = {                            \
858         .stream   = _i,                                               \
859         .name     = _t stringify(_i) " FMT",                          \
860         .size     = 2,                                                \
861         .wmask    = 0x7f7f,                                           \
862         .offset   = offsetof(IntelHDAState, st[_i].fmt),              \
863     },                                                                \
864     [ ST_REG(_i, ICH6_REG_SD_BDLPL) ] = {                             \
865         .stream   = _i,                                               \
866         .name     = _t stringify(_i) " BDLPL",                        \
867         .size     = 4,                                                \
868         .wmask    = 0xffffff80,                                       \
869         .offset   = offsetof(IntelHDAState, st[_i].bdlp_lbase),       \
870     },                                                                \
871     [ ST_REG(_i, ICH6_REG_SD_BDLPU) ] = {                             \
872         .stream   = _i,                                               \
873         .name     = _t stringify(_i) " BDLPU",                        \
874         .size     = 4,                                                \
875         .wmask    = 0xffffffff,                                       \
876         .offset   = offsetof(IntelHDAState, st[_i].bdlp_ubase),       \
877     },                                                                \
878 
879     HDA_STREAM("IN", 0)
880     HDA_STREAM("IN", 1)
881     HDA_STREAM("IN", 2)
882     HDA_STREAM("IN", 3)
883 
884     HDA_STREAM("OUT", 4)
885     HDA_STREAM("OUT", 5)
886     HDA_STREAM("OUT", 6)
887     HDA_STREAM("OUT", 7)
888 
889 };
890 
891 static const IntelHDAReg *intel_hda_reg_find(IntelHDAState *d, hwaddr addr)
892 {
893     const IntelHDAReg *reg;
894 
895     if (addr >= ARRAY_SIZE(regtab)) {
896         goto noreg;
897     }
898     reg = regtab+addr;
899     if (reg->name == NULL) {
900         goto noreg;
901     }
902     return reg;
903 
904 noreg:
905     dprint(d, 1, "unknown register, addr 0x%x\n", (int) addr);
906     return NULL;
907 }
908 
909 static uint32_t *intel_hda_reg_addr(IntelHDAState *d, const IntelHDAReg *reg)
910 {
911     uint8_t *addr = (void*)d;
912 
913     addr += reg->offset;
914     return (uint32_t*)addr;
915 }
916 
917 static void intel_hda_reg_write(IntelHDAState *d, const IntelHDAReg *reg, uint32_t val,
918                                 uint32_t wmask)
919 {
920     uint32_t *addr;
921     uint32_t old;
922 
923     if (!reg) {
924         return;
925     }
926     if (!reg->wmask) {
927         qemu_log_mask(LOG_GUEST_ERROR, "intel-hda: write to r/o reg %s\n",
928                       reg->name);
929         return;
930     }
931 
932     if (d->debug) {
933         time_t now = time(NULL);
934         if (d->last_write && d->last_reg == reg && d->last_val == val) {
935             d->repeat_count++;
936             if (d->last_sec != now) {
937                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
938                 d->last_sec = now;
939                 d->repeat_count = 0;
940             }
941         } else {
942             if (d->repeat_count) {
943                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
944             }
945             dprint(d, 2, "write %-16s: 0x%x (%x)\n", reg->name, val, wmask);
946             d->last_write = 1;
947             d->last_reg   = reg;
948             d->last_val   = val;
949             d->last_sec   = now;
950             d->repeat_count = 0;
951         }
952     }
953     assert(reg->offset != 0);
954 
955     addr = intel_hda_reg_addr(d, reg);
956     old = *addr;
957 
958     if (reg->shift) {
959         val <<= reg->shift;
960         wmask <<= reg->shift;
961     }
962     wmask &= reg->wmask;
963     *addr &= ~wmask;
964     *addr |= wmask & val;
965     *addr &= ~(val & reg->wclear);
966 
967     if (reg->whandler) {
968         reg->whandler(d, reg, old);
969     }
970 }
971 
972 static uint32_t intel_hda_reg_read(IntelHDAState *d, const IntelHDAReg *reg,
973                                    uint32_t rmask)
974 {
975     uint32_t *addr, ret;
976 
977     if (!reg) {
978         return 0;
979     }
980 
981     if (reg->rhandler) {
982         reg->rhandler(d, reg);
983     }
984 
985     if (reg->offset == 0) {
986         /* constant read-only register */
987         ret = reg->reset;
988     } else {
989         addr = intel_hda_reg_addr(d, reg);
990         ret = *addr;
991         if (reg->shift) {
992             ret >>= reg->shift;
993         }
994         ret &= rmask;
995     }
996     if (d->debug) {
997         time_t now = time(NULL);
998         if (!d->last_write && d->last_reg == reg && d->last_val == ret) {
999             d->repeat_count++;
1000             if (d->last_sec != now) {
1001                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1002                 d->last_sec = now;
1003                 d->repeat_count = 0;
1004             }
1005         } else {
1006             if (d->repeat_count) {
1007                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1008             }
1009             dprint(d, 2, "read  %-16s: 0x%x (%x)\n", reg->name, ret, rmask);
1010             d->last_write = 0;
1011             d->last_reg   = reg;
1012             d->last_val   = ret;
1013             d->last_sec   = now;
1014             d->repeat_count = 0;
1015         }
1016     }
1017     return ret;
1018 }
1019 
1020 static void intel_hda_regs_reset(IntelHDAState *d)
1021 {
1022     uint32_t *addr;
1023     int i;
1024 
1025     for (i = 0; i < ARRAY_SIZE(regtab); i++) {
1026         if (regtab[i].name == NULL) {
1027             continue;
1028         }
1029         if (regtab[i].offset == 0) {
1030             continue;
1031         }
1032         addr = intel_hda_reg_addr(d, regtab + i);
1033         *addr = regtab[i].reset;
1034     }
1035 }
1036 
1037 /* --------------------------------------------------------------------- */
1038 
1039 static void intel_hda_mmio_write(void *opaque, hwaddr addr, uint64_t val,
1040                                  unsigned size)
1041 {
1042     IntelHDAState *d = opaque;
1043     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1044 
1045     intel_hda_reg_write(d, reg, val, MAKE_64BIT_MASK(0, size * 8));
1046 }
1047 
1048 static uint64_t intel_hda_mmio_read(void *opaque, hwaddr addr, unsigned size)
1049 {
1050     IntelHDAState *d = opaque;
1051     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1052 
1053     return intel_hda_reg_read(d, reg, MAKE_64BIT_MASK(0, size * 8));
1054 }
1055 
1056 static const MemoryRegionOps intel_hda_mmio_ops = {
1057     .read = intel_hda_mmio_read,
1058     .write = intel_hda_mmio_write,
1059     .impl = {
1060         .min_access_size = 1,
1061         .max_access_size = 4,
1062     },
1063     .endianness = DEVICE_NATIVE_ENDIAN,
1064 };
1065 
1066 /* --------------------------------------------------------------------- */
1067 
1068 static void intel_hda_reset(DeviceState *dev)
1069 {
1070     BusChild *kid;
1071     IntelHDAState *d = INTEL_HDA(dev);
1072     HDACodecDevice *cdev;
1073 
1074     intel_hda_regs_reset(d);
1075     d->wall_base_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
1076 
1077     /* reset codecs */
1078     QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
1079         DeviceState *qdev = kid->child;
1080         cdev = HDA_CODEC_DEVICE(qdev);
1081         device_legacy_reset(DEVICE(cdev));
1082         d->state_sts |= (1 << cdev->cad);
1083     }
1084     intel_hda_update_irq(d);
1085 }
1086 
1087 static void intel_hda_realize(PCIDevice *pci, Error **errp)
1088 {
1089     IntelHDAState *d = INTEL_HDA(pci);
1090     uint8_t *conf = d->pci.config;
1091     Error *err = NULL;
1092     int ret;
1093 
1094     d->name = object_get_typename(OBJECT(d));
1095 
1096     pci_config_set_interrupt_pin(conf, 1);
1097 
1098     /* HDCTL off 0x40 bit 0 selects signaling mode (1-HDA, 0 - Ac97) 18.1.19 */
1099     conf[0x40] = 0x01;
1100 
1101     if (d->msi != ON_OFF_AUTO_OFF) {
1102         ret = msi_init(&d->pci, d->old_msi_addr ? 0x50 : 0x60,
1103                        1, true, false, &err);
1104         /* Any error other than -ENOTSUP(board's MSI support is broken)
1105          * is a programming error */
1106         assert(!ret || ret == -ENOTSUP);
1107         if (ret && d->msi == ON_OFF_AUTO_ON) {
1108             /* Can't satisfy user's explicit msi=on request, fail */
1109             error_append_hint(&err, "You have to use msi=auto (default) or "
1110                     "msi=off with this machine type.\n");
1111             error_propagate(errp, err);
1112             return;
1113         }
1114         assert(!err || d->msi == ON_OFF_AUTO_AUTO);
1115         /* With msi=auto, we fall back to MSI off silently */
1116         error_free(err);
1117     }
1118 
1119     memory_region_init(&d->container, OBJECT(d),
1120                        "intel-hda-container", 0x4000);
1121     memory_region_init_io(&d->mmio, OBJECT(d), &intel_hda_mmio_ops, d,
1122                           "intel-hda", 0x2000);
1123     memory_region_add_subregion(&d->container, 0x0000, &d->mmio);
1124     memory_region_init_alias(&d->alias, OBJECT(d), "intel-hda-alias",
1125                              &d->mmio, 0, 0x2000);
1126     memory_region_add_subregion(&d->container, 0x2000, &d->alias);
1127     pci_register_bar(&d->pci, 0, 0, &d->container);
1128 
1129     hda_codec_bus_init(DEVICE(pci), &d->codecs, sizeof(d->codecs),
1130                        intel_hda_response, intel_hda_xfer);
1131 }
1132 
1133 static void intel_hda_exit(PCIDevice *pci)
1134 {
1135     IntelHDAState *d = INTEL_HDA(pci);
1136 
1137     msi_uninit(&d->pci);
1138 }
1139 
1140 static int intel_hda_post_load(void *opaque, int version)
1141 {
1142     IntelHDAState* d = opaque;
1143     int i;
1144 
1145     dprint(d, 1, "%s\n", __func__);
1146     for (i = 0; i < ARRAY_SIZE(d->st); i++) {
1147         if (d->st[i].ctl & 0x02) {
1148             intel_hda_parse_bdl(d, &d->st[i]);
1149         }
1150     }
1151     intel_hda_update_irq(d);
1152     return 0;
1153 }
1154 
1155 static const VMStateDescription vmstate_intel_hda_stream = {
1156     .name = "intel-hda-stream",
1157     .version_id = 1,
1158     .fields = (VMStateField[]) {
1159         VMSTATE_UINT32(ctl, IntelHDAStream),
1160         VMSTATE_UINT32(lpib, IntelHDAStream),
1161         VMSTATE_UINT32(cbl, IntelHDAStream),
1162         VMSTATE_UINT32(lvi, IntelHDAStream),
1163         VMSTATE_UINT32(fmt, IntelHDAStream),
1164         VMSTATE_UINT32(bdlp_lbase, IntelHDAStream),
1165         VMSTATE_UINT32(bdlp_ubase, IntelHDAStream),
1166         VMSTATE_END_OF_LIST()
1167     }
1168 };
1169 
1170 static const VMStateDescription vmstate_intel_hda = {
1171     .name = "intel-hda",
1172     .version_id = 1,
1173     .post_load = intel_hda_post_load,
1174     .fields = (VMStateField[]) {
1175         VMSTATE_PCI_DEVICE(pci, IntelHDAState),
1176 
1177         /* registers */
1178         VMSTATE_UINT32(g_ctl, IntelHDAState),
1179         VMSTATE_UINT32(wake_en, IntelHDAState),
1180         VMSTATE_UINT32(state_sts, IntelHDAState),
1181         VMSTATE_UINT32(int_ctl, IntelHDAState),
1182         VMSTATE_UINT32(int_sts, IntelHDAState),
1183         VMSTATE_UINT32(wall_clk, IntelHDAState),
1184         VMSTATE_UINT32(corb_lbase, IntelHDAState),
1185         VMSTATE_UINT32(corb_ubase, IntelHDAState),
1186         VMSTATE_UINT32(corb_rp, IntelHDAState),
1187         VMSTATE_UINT32(corb_wp, IntelHDAState),
1188         VMSTATE_UINT32(corb_ctl, IntelHDAState),
1189         VMSTATE_UINT32(corb_sts, IntelHDAState),
1190         VMSTATE_UINT32(corb_size, IntelHDAState),
1191         VMSTATE_UINT32(rirb_lbase, IntelHDAState),
1192         VMSTATE_UINT32(rirb_ubase, IntelHDAState),
1193         VMSTATE_UINT32(rirb_wp, IntelHDAState),
1194         VMSTATE_UINT32(rirb_cnt, IntelHDAState),
1195         VMSTATE_UINT32(rirb_ctl, IntelHDAState),
1196         VMSTATE_UINT32(rirb_sts, IntelHDAState),
1197         VMSTATE_UINT32(rirb_size, IntelHDAState),
1198         VMSTATE_UINT32(dp_lbase, IntelHDAState),
1199         VMSTATE_UINT32(dp_ubase, IntelHDAState),
1200         VMSTATE_UINT32(icw, IntelHDAState),
1201         VMSTATE_UINT32(irr, IntelHDAState),
1202         VMSTATE_UINT32(ics, IntelHDAState),
1203         VMSTATE_STRUCT_ARRAY(st, IntelHDAState, 8, 0,
1204                              vmstate_intel_hda_stream,
1205                              IntelHDAStream),
1206 
1207         /* additional state info */
1208         VMSTATE_UINT32(rirb_count, IntelHDAState),
1209         VMSTATE_INT64(wall_base_ns, IntelHDAState),
1210 
1211         VMSTATE_END_OF_LIST()
1212     }
1213 };
1214 
1215 static Property intel_hda_properties[] = {
1216     DEFINE_PROP_UINT32("debug", IntelHDAState, debug, 0),
1217     DEFINE_PROP_ON_OFF_AUTO("msi", IntelHDAState, msi, ON_OFF_AUTO_AUTO),
1218     DEFINE_PROP_BOOL("old_msi_addr", IntelHDAState, old_msi_addr, false),
1219     DEFINE_PROP_END_OF_LIST(),
1220 };
1221 
1222 static void intel_hda_class_init(ObjectClass *klass, void *data)
1223 {
1224     DeviceClass *dc = DEVICE_CLASS(klass);
1225     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1226 
1227     k->realize = intel_hda_realize;
1228     k->exit = intel_hda_exit;
1229     k->vendor_id = PCI_VENDOR_ID_INTEL;
1230     k->class_id = PCI_CLASS_MULTIMEDIA_HD_AUDIO;
1231     dc->reset = intel_hda_reset;
1232     dc->vmsd = &vmstate_intel_hda;
1233     device_class_set_props(dc, intel_hda_properties);
1234 }
1235 
1236 static void intel_hda_class_init_ich6(ObjectClass *klass, void *data)
1237 {
1238     DeviceClass *dc = DEVICE_CLASS(klass);
1239     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1240 
1241     k->device_id = 0x2668;
1242     k->revision = 1;
1243     set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
1244     dc->desc = "Intel HD Audio Controller (ich6)";
1245 }
1246 
1247 static void intel_hda_class_init_ich9(ObjectClass *klass, void *data)
1248 {
1249     DeviceClass *dc = DEVICE_CLASS(klass);
1250     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1251 
1252     k->device_id = 0x293e;
1253     k->revision = 3;
1254     set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
1255     dc->desc = "Intel HD Audio Controller (ich9)";
1256 }
1257 
1258 static const TypeInfo intel_hda_info = {
1259     .name          = TYPE_INTEL_HDA_GENERIC,
1260     .parent        = TYPE_PCI_DEVICE,
1261     .instance_size = sizeof(IntelHDAState),
1262     .class_init    = intel_hda_class_init,
1263     .abstract      = true,
1264     .interfaces = (InterfaceInfo[]) {
1265         { INTERFACE_CONVENTIONAL_PCI_DEVICE },
1266         { },
1267     },
1268 };
1269 
1270 static const TypeInfo intel_hda_info_ich6 = {
1271     .name          = "intel-hda",
1272     .parent        = TYPE_INTEL_HDA_GENERIC,
1273     .class_init    = intel_hda_class_init_ich6,
1274 };
1275 
1276 static const TypeInfo intel_hda_info_ich9 = {
1277     .name          = "ich9-intel-hda",
1278     .parent        = TYPE_INTEL_HDA_GENERIC,
1279     .class_init    = intel_hda_class_init_ich9,
1280 };
1281 
1282 static void hda_codec_device_class_init(ObjectClass *klass, void *data)
1283 {
1284     DeviceClass *k = DEVICE_CLASS(klass);
1285     k->realize = hda_codec_dev_realize;
1286     k->unrealize = hda_codec_dev_unrealize;
1287     set_bit(DEVICE_CATEGORY_SOUND, k->categories);
1288     k->bus_type = TYPE_HDA_BUS;
1289     device_class_set_props(k, hda_props);
1290 }
1291 
1292 static const TypeInfo hda_codec_device_type_info = {
1293     .name = TYPE_HDA_CODEC_DEVICE,
1294     .parent = TYPE_DEVICE,
1295     .instance_size = sizeof(HDACodecDevice),
1296     .abstract = true,
1297     .class_size = sizeof(HDACodecDeviceClass),
1298     .class_init = hda_codec_device_class_init,
1299 };
1300 
1301 /*
1302  * create intel hda controller with codec attached to it,
1303  * so '-soundhw hda' works.
1304  */
1305 static int intel_hda_and_codec_init(PCIBus *bus)
1306 {
1307     DeviceState *controller;
1308     BusState *hdabus;
1309     DeviceState *codec;
1310 
1311     warn_report("'-soundhw hda' is deprecated, "
1312                 "please use '-device intel-hda -device hda-duplex' instead");
1313     controller = DEVICE(pci_create_simple(bus, -1, "intel-hda"));
1314     hdabus = QLIST_FIRST(&controller->child_bus);
1315     codec = qdev_new("hda-duplex");
1316     qdev_realize_and_unref(codec, hdabus, &error_fatal);
1317     return 0;
1318 }
1319 
1320 static void intel_hda_register_types(void)
1321 {
1322     type_register_static(&hda_codec_bus_info);
1323     type_register_static(&intel_hda_info);
1324     type_register_static(&intel_hda_info_ich6);
1325     type_register_static(&intel_hda_info_ich9);
1326     type_register_static(&hda_codec_device_type_info);
1327     pci_register_soundhw("hda", "Intel HD Audio", intel_hda_and_codec_init);
1328 }
1329 
1330 type_init(intel_hda_register_types)
1331