xref: /openbmc/qemu/hw/audio/intel-hda.c (revision e3a99063)
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 "hw/audio/soundhw.h"
29 #include "intel-hda.h"
30 #include "migration/vmstate.h"
31 #include "intel-hda-defs.h"
32 #include "sysemu/dma.h"
33 #include "qapi/error.h"
34 
35 /* --------------------------------------------------------------------- */
36 /* hda bus                                                               */
37 
38 static Property hda_props[] = {
39     DEFINE_PROP_UINT32("cad", HDACodecDevice, cad, -1),
40     DEFINE_PROP_END_OF_LIST()
41 };
42 
43 static const TypeInfo hda_codec_bus_info = {
44     .name = TYPE_HDA_BUS,
45     .parent = TYPE_BUS,
46     .instance_size = sizeof(HDACodecBus),
47 };
48 
49 void hda_codec_bus_init(DeviceState *dev, HDACodecBus *bus, size_t bus_size,
50                         hda_codec_response_func response,
51                         hda_codec_xfer_func xfer)
52 {
53     qbus_create_inplace(bus, bus_size, TYPE_HDA_BUS, dev, NULL);
54     bus->response = response;
55     bus->xfer = xfer;
56 }
57 
58 static void hda_codec_dev_realize(DeviceState *qdev, Error **errp)
59 {
60     HDACodecBus *bus = HDA_BUS(qdev->parent_bus);
61     HDACodecDevice *dev = HDA_CODEC_DEVICE(qdev);
62     HDACodecDeviceClass *cdc = HDA_CODEC_DEVICE_GET_CLASS(dev);
63 
64     if (dev->cad == -1) {
65         dev->cad = bus->next_cad;
66     }
67     if (dev->cad >= 15) {
68         error_setg(errp, "HDA audio codec address is full");
69         return;
70     }
71     bus->next_cad = dev->cad + 1;
72     if (cdc->init(dev) != 0) {
73         error_setg(errp, "HDA audio init failed");
74     }
75 }
76 
77 static void hda_codec_dev_unrealize(DeviceState *qdev, Error **errp)
78 {
79     HDACodecDevice *dev = HDA_CODEC_DEVICE(qdev);
80     HDACodecDeviceClass *cdc = HDA_CODEC_DEVICE_GET_CLASS(dev);
81 
82     if (cdc->exit) {
83         cdc->exit(dev);
84     }
85 }
86 
87 HDACodecDevice *hda_codec_find(HDACodecBus *bus, uint32_t cad)
88 {
89     BusChild *kid;
90     HDACodecDevice *cdev;
91 
92     QTAILQ_FOREACH(kid, &bus->qbus.children, sibling) {
93         DeviceState *qdev = kid->child;
94         cdev = HDA_CODEC_DEVICE(qdev);
95         if (cdev->cad == cad) {
96             return cdev;
97         }
98     }
99     return NULL;
100 }
101 
102 void hda_codec_response(HDACodecDevice *dev, bool solicited, uint32_t response)
103 {
104     HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
105     bus->response(dev, solicited, response);
106 }
107 
108 bool hda_codec_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
109                     uint8_t *buf, uint32_t len)
110 {
111     HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
112     return bus->xfer(dev, stnr, output, buf, len);
113 }
114 
115 /* --------------------------------------------------------------------- */
116 /* intel hda emulation                                                   */
117 
118 typedef struct IntelHDAStream IntelHDAStream;
119 typedef struct IntelHDAState IntelHDAState;
120 typedef struct IntelHDAReg IntelHDAReg;
121 
122 typedef struct bpl {
123     uint64_t addr;
124     uint32_t len;
125     uint32_t flags;
126 } bpl;
127 
128 struct IntelHDAStream {
129     /* registers */
130     uint32_t ctl;
131     uint32_t lpib;
132     uint32_t cbl;
133     uint32_t lvi;
134     uint32_t fmt;
135     uint32_t bdlp_lbase;
136     uint32_t bdlp_ubase;
137 
138     /* state */
139     bpl      *bpl;
140     uint32_t bentries;
141     uint32_t bsize, be, bp;
142 };
143 
144 struct IntelHDAState {
145     PCIDevice pci;
146     const char *name;
147     HDACodecBus codecs;
148 
149     /* registers */
150     uint32_t g_ctl;
151     uint32_t wake_en;
152     uint32_t state_sts;
153     uint32_t int_ctl;
154     uint32_t int_sts;
155     uint32_t wall_clk;
156 
157     uint32_t corb_lbase;
158     uint32_t corb_ubase;
159     uint32_t corb_rp;
160     uint32_t corb_wp;
161     uint32_t corb_ctl;
162     uint32_t corb_sts;
163     uint32_t corb_size;
164 
165     uint32_t rirb_lbase;
166     uint32_t rirb_ubase;
167     uint32_t rirb_wp;
168     uint32_t rirb_cnt;
169     uint32_t rirb_ctl;
170     uint32_t rirb_sts;
171     uint32_t rirb_size;
172 
173     uint32_t dp_lbase;
174     uint32_t dp_ubase;
175 
176     uint32_t icw;
177     uint32_t irr;
178     uint32_t ics;
179 
180     /* streams */
181     IntelHDAStream st[8];
182 
183     /* state */
184     MemoryRegion container;
185     MemoryRegion mmio;
186     MemoryRegion alias;
187     uint32_t rirb_count;
188     int64_t wall_base_ns;
189 
190     /* debug logging */
191     const IntelHDAReg *last_reg;
192     uint32_t last_val;
193     uint32_t last_write;
194     uint32_t last_sec;
195     uint32_t repeat_count;
196 
197     /* properties */
198     uint32_t debug;
199     OnOffAuto msi;
200     bool old_msi_addr;
201 };
202 
203 #define TYPE_INTEL_HDA_GENERIC "intel-hda-generic"
204 
205 #define INTEL_HDA(obj) \
206     OBJECT_CHECK(IntelHDAState, (obj), TYPE_INTEL_HDA_GENERIC)
207 
208 struct IntelHDAReg {
209     const char *name;      /* register name */
210     uint32_t   size;       /* size in bytes */
211     uint32_t   reset;      /* reset value */
212     uint32_t   wmask;      /* write mask */
213     uint32_t   wclear;     /* write 1 to clear bits */
214     uint32_t   offset;     /* location in IntelHDAState */
215     uint32_t   shift;      /* byte access entries for dwords */
216     uint32_t   stream;
217     void       (*whandler)(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old);
218     void       (*rhandler)(IntelHDAState *d, const IntelHDAReg *reg);
219 };
220 
221 static void intel_hda_reset(DeviceState *dev);
222 
223 /* --------------------------------------------------------------------- */
224 
225 static hwaddr intel_hda_addr(uint32_t lbase, uint32_t ubase)
226 {
227     return ((uint64_t)ubase << 32) | lbase;
228 }
229 
230 static void intel_hda_update_int_sts(IntelHDAState *d)
231 {
232     uint32_t sts = 0;
233     uint32_t i;
234 
235     /* update controller status */
236     if (d->rirb_sts & ICH6_RBSTS_IRQ) {
237         sts |= (1 << 30);
238     }
239     if (d->rirb_sts & ICH6_RBSTS_OVERRUN) {
240         sts |= (1 << 30);
241     }
242     if (d->state_sts & d->wake_en) {
243         sts |= (1 << 30);
244     }
245 
246     /* update stream status */
247     for (i = 0; i < 8; i++) {
248         /* buffer completion interrupt */
249         if (d->st[i].ctl & (1 << 26)) {
250             sts |= (1 << i);
251         }
252     }
253 
254     /* update global status */
255     if (sts & d->int_ctl) {
256         sts |= (1U << 31);
257     }
258 
259     d->int_sts = sts;
260 }
261 
262 static void intel_hda_update_irq(IntelHDAState *d)
263 {
264     bool msi = msi_enabled(&d->pci);
265     int level;
266 
267     intel_hda_update_int_sts(d);
268     if (d->int_sts & (1U << 31) && d->int_ctl & (1U << 31)) {
269         level = 1;
270     } else {
271         level = 0;
272     }
273     dprint(d, 2, "%s: level %d [%s]\n", __func__,
274            level, msi ? "msi" : "intx");
275     if (msi) {
276         if (level) {
277             msi_notify(&d->pci, 0);
278         }
279     } else {
280         pci_set_irq(&d->pci, level);
281     }
282 }
283 
284 static int intel_hda_send_command(IntelHDAState *d, uint32_t verb)
285 {
286     uint32_t cad, nid, data;
287     HDACodecDevice *codec;
288     HDACodecDeviceClass *cdc;
289 
290     cad = (verb >> 28) & 0x0f;
291     if (verb & (1 << 27)) {
292         /* indirect node addressing, not specified in HDA 1.0 */
293         dprint(d, 1, "%s: indirect node addressing (guest bug?)\n", __func__);
294         return -1;
295     }
296     nid = (verb >> 20) & 0x7f;
297     data = verb & 0xfffff;
298 
299     codec = hda_codec_find(&d->codecs, cad);
300     if (codec == NULL) {
301         dprint(d, 1, "%s: addressed non-existing codec\n", __func__);
302         return -1;
303     }
304     cdc = HDA_CODEC_DEVICE_GET_CLASS(codec);
305     cdc->command(codec, nid, data);
306     return 0;
307 }
308 
309 static void intel_hda_corb_run(IntelHDAState *d)
310 {
311     hwaddr addr;
312     uint32_t rp, verb;
313 
314     if (d->ics & ICH6_IRS_BUSY) {
315         dprint(d, 2, "%s: [icw] verb 0x%08x\n", __func__, d->icw);
316         intel_hda_send_command(d, d->icw);
317         return;
318     }
319 
320     for (;;) {
321         if (!(d->corb_ctl & ICH6_CORBCTL_RUN)) {
322             dprint(d, 2, "%s: !run\n", __func__);
323             return;
324         }
325         if ((d->corb_rp & 0xff) == d->corb_wp) {
326             dprint(d, 2, "%s: corb ring empty\n", __func__);
327             return;
328         }
329         if (d->rirb_count == d->rirb_cnt) {
330             dprint(d, 2, "%s: rirb count reached\n", __func__);
331             return;
332         }
333 
334         rp = (d->corb_rp + 1) & 0xff;
335         addr = intel_hda_addr(d->corb_lbase, d->corb_ubase);
336         verb = ldl_le_pci_dma(&d->pci, addr + 4*rp);
337         d->corb_rp = rp;
338 
339         dprint(d, 2, "%s: [rp 0x%x] verb 0x%08x\n", __func__, rp, verb);
340         intel_hda_send_command(d, verb);
341     }
342 }
343 
344 static void intel_hda_response(HDACodecDevice *dev, bool solicited, uint32_t response)
345 {
346     HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
347     IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
348     hwaddr addr;
349     uint32_t wp, ex;
350 
351     if (d->ics & ICH6_IRS_BUSY) {
352         dprint(d, 2, "%s: [irr] response 0x%x, cad 0x%x\n",
353                __func__, response, dev->cad);
354         d->irr = response;
355         d->ics &= ~(ICH6_IRS_BUSY | 0xf0);
356         d->ics |= (ICH6_IRS_VALID | (dev->cad << 4));
357         return;
358     }
359 
360     if (!(d->rirb_ctl & ICH6_RBCTL_DMA_EN)) {
361         dprint(d, 1, "%s: rirb dma disabled, drop codec response\n", __func__);
362         return;
363     }
364 
365     ex = (solicited ? 0 : (1 << 4)) | dev->cad;
366     wp = (d->rirb_wp + 1) & 0xff;
367     addr = intel_hda_addr(d->rirb_lbase, d->rirb_ubase);
368     stl_le_pci_dma(&d->pci, addr + 8*wp, response);
369     stl_le_pci_dma(&d->pci, addr + 8*wp + 4, ex);
370     d->rirb_wp = wp;
371 
372     dprint(d, 2, "%s: [wp 0x%x] response 0x%x, extra 0x%x\n",
373            __func__, wp, response, ex);
374 
375     d->rirb_count++;
376     if (d->rirb_count == d->rirb_cnt) {
377         dprint(d, 2, "%s: rirb count reached (%d)\n", __func__, d->rirb_count);
378         if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
379             d->rirb_sts |= ICH6_RBSTS_IRQ;
380             intel_hda_update_irq(d);
381         }
382     } else if ((d->corb_rp & 0xff) == d->corb_wp) {
383         dprint(d, 2, "%s: corb ring empty (%d/%d)\n", __func__,
384                d->rirb_count, d->rirb_cnt);
385         if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
386             d->rirb_sts |= ICH6_RBSTS_IRQ;
387             intel_hda_update_irq(d);
388         }
389     }
390 }
391 
392 static bool intel_hda_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
393                            uint8_t *buf, uint32_t len)
394 {
395     HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
396     IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
397     hwaddr addr;
398     uint32_t s, copy, left;
399     IntelHDAStream *st;
400     bool irq = false;
401 
402     st = output ? d->st + 4 : d->st;
403     for (s = 0; s < 4; s++) {
404         if (stnr == ((st[s].ctl >> 20) & 0x0f)) {
405             st = st + s;
406             break;
407         }
408     }
409     if (s == 4) {
410         return false;
411     }
412     if (st->bpl == NULL) {
413         return false;
414     }
415 
416     left = len;
417     s = st->bentries;
418     while (left > 0 && s-- > 0) {
419         copy = left;
420         if (copy > st->bsize - st->lpib)
421             copy = st->bsize - st->lpib;
422         if (copy > st->bpl[st->be].len - st->bp)
423             copy = st->bpl[st->be].len - st->bp;
424 
425         dprint(d, 3, "dma: entry %d, pos %d/%d, copy %d\n",
426                st->be, st->bp, st->bpl[st->be].len, copy);
427 
428         pci_dma_rw(&d->pci, st->bpl[st->be].addr + st->bp, buf, copy, !output);
429         st->lpib += copy;
430         st->bp += copy;
431         buf += copy;
432         left -= copy;
433 
434         if (st->bpl[st->be].len == st->bp) {
435             /* bpl entry filled */
436             if (st->bpl[st->be].flags & 0x01) {
437                 irq = true;
438             }
439             st->bp = 0;
440             st->be++;
441             if (st->be == st->bentries) {
442                 /* bpl wrap around */
443                 st->be = 0;
444                 st->lpib = 0;
445             }
446         }
447     }
448     if (d->dp_lbase & 0x01) {
449         s = st - d->st;
450         addr = intel_hda_addr(d->dp_lbase & ~0x01, d->dp_ubase);
451         stl_le_pci_dma(&d->pci, addr + 8*s, st->lpib);
452     }
453     dprint(d, 3, "dma: --\n");
454 
455     if (irq) {
456         st->ctl |= (1 << 26); /* buffer completion interrupt */
457         intel_hda_update_irq(d);
458     }
459     return true;
460 }
461 
462 static void intel_hda_parse_bdl(IntelHDAState *d, IntelHDAStream *st)
463 {
464     hwaddr addr;
465     uint8_t buf[16];
466     uint32_t i;
467 
468     addr = intel_hda_addr(st->bdlp_lbase, st->bdlp_ubase);
469     st->bentries = st->lvi +1;
470     g_free(st->bpl);
471     st->bpl = g_malloc(sizeof(bpl) * st->bentries);
472     for (i = 0; i < st->bentries; i++, addr += 16) {
473         pci_dma_read(&d->pci, addr, buf, 16);
474         st->bpl[i].addr  = le64_to_cpu(*(uint64_t *)buf);
475         st->bpl[i].len   = le32_to_cpu(*(uint32_t *)(buf + 8));
476         st->bpl[i].flags = le32_to_cpu(*(uint32_t *)(buf + 12));
477         dprint(d, 1, "bdl/%d: 0x%" PRIx64 " +0x%x, 0x%x\n",
478                i, st->bpl[i].addr, st->bpl[i].len, st->bpl[i].flags);
479     }
480 
481     st->bsize = st->cbl;
482     st->lpib  = 0;
483     st->be    = 0;
484     st->bp    = 0;
485 }
486 
487 static void intel_hda_notify_codecs(IntelHDAState *d, uint32_t stream, bool running, bool output)
488 {
489     BusChild *kid;
490     HDACodecDevice *cdev;
491 
492     QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
493         DeviceState *qdev = kid->child;
494         HDACodecDeviceClass *cdc;
495 
496         cdev = HDA_CODEC_DEVICE(qdev);
497         cdc = HDA_CODEC_DEVICE_GET_CLASS(cdev);
498         if (cdc->stream) {
499             cdc->stream(cdev, stream, running, output);
500         }
501     }
502 }
503 
504 /* --------------------------------------------------------------------- */
505 
506 static void intel_hda_set_g_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
507 {
508     if ((d->g_ctl & ICH6_GCTL_RESET) == 0) {
509         intel_hda_reset(DEVICE(d));
510     }
511 }
512 
513 static void intel_hda_set_wake_en(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
514 {
515     intel_hda_update_irq(d);
516 }
517 
518 static void intel_hda_set_state_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
519 {
520     intel_hda_update_irq(d);
521 }
522 
523 static void intel_hda_set_int_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
524 {
525     intel_hda_update_irq(d);
526 }
527 
528 static void intel_hda_get_wall_clk(IntelHDAState *d, const IntelHDAReg *reg)
529 {
530     int64_t ns;
531 
532     ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - d->wall_base_ns;
533     d->wall_clk = (uint32_t)(ns * 24 / 1000);  /* 24 MHz */
534 }
535 
536 static void intel_hda_set_corb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
537 {
538     intel_hda_corb_run(d);
539 }
540 
541 static void intel_hda_set_corb_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
542 {
543     intel_hda_corb_run(d);
544 }
545 
546 static void intel_hda_set_rirb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
547 {
548     if (d->rirb_wp & ICH6_RIRBWP_RST) {
549         d->rirb_wp = 0;
550     }
551 }
552 
553 static void intel_hda_set_rirb_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
554 {
555     intel_hda_update_irq(d);
556 
557     if ((old & ICH6_RBSTS_IRQ) && !(d->rirb_sts & ICH6_RBSTS_IRQ)) {
558         /* cleared ICH6_RBSTS_IRQ */
559         d->rirb_count = 0;
560         intel_hda_corb_run(d);
561     }
562 }
563 
564 static void intel_hda_set_ics(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
565 {
566     if (d->ics & ICH6_IRS_BUSY) {
567         intel_hda_corb_run(d);
568     }
569 }
570 
571 static void intel_hda_set_st_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
572 {
573     bool output = reg->stream >= 4;
574     IntelHDAStream *st = d->st + reg->stream;
575 
576     if (st->ctl & 0x01) {
577         /* reset */
578         dprint(d, 1, "st #%d: reset\n", reg->stream);
579         st->ctl = SD_STS_FIFO_READY << 24;
580     }
581     if ((st->ctl & 0x02) != (old & 0x02)) {
582         uint32_t stnr = (st->ctl >> 20) & 0x0f;
583         /* run bit flipped */
584         if (st->ctl & 0x02) {
585             /* start */
586             dprint(d, 1, "st #%d: start %d (ring buf %d bytes)\n",
587                    reg->stream, stnr, st->cbl);
588             intel_hda_parse_bdl(d, st);
589             intel_hda_notify_codecs(d, stnr, true, output);
590         } else {
591             /* stop */
592             dprint(d, 1, "st #%d: stop %d\n", reg->stream, stnr);
593             intel_hda_notify_codecs(d, stnr, false, output);
594         }
595     }
596     intel_hda_update_irq(d);
597 }
598 
599 /* --------------------------------------------------------------------- */
600 
601 #define ST_REG(_n, _o) (0x80 + (_n) * 0x20 + (_o))
602 
603 static const struct IntelHDAReg regtab[] = {
604     /* global */
605     [ ICH6_REG_GCAP ] = {
606         .name     = "GCAP",
607         .size     = 2,
608         .reset    = 0x4401,
609     },
610     [ ICH6_REG_VMIN ] = {
611         .name     = "VMIN",
612         .size     = 1,
613     },
614     [ ICH6_REG_VMAJ ] = {
615         .name     = "VMAJ",
616         .size     = 1,
617         .reset    = 1,
618     },
619     [ ICH6_REG_OUTPAY ] = {
620         .name     = "OUTPAY",
621         .size     = 2,
622         .reset    = 0x3c,
623     },
624     [ ICH6_REG_INPAY ] = {
625         .name     = "INPAY",
626         .size     = 2,
627         .reset    = 0x1d,
628     },
629     [ ICH6_REG_GCTL ] = {
630         .name     = "GCTL",
631         .size     = 4,
632         .wmask    = 0x0103,
633         .offset   = offsetof(IntelHDAState, g_ctl),
634         .whandler = intel_hda_set_g_ctl,
635     },
636     [ ICH6_REG_WAKEEN ] = {
637         .name     = "WAKEEN",
638         .size     = 2,
639         .wmask    = 0x7fff,
640         .offset   = offsetof(IntelHDAState, wake_en),
641         .whandler = intel_hda_set_wake_en,
642     },
643     [ ICH6_REG_STATESTS ] = {
644         .name     = "STATESTS",
645         .size     = 2,
646         .wmask    = 0x7fff,
647         .wclear   = 0x7fff,
648         .offset   = offsetof(IntelHDAState, state_sts),
649         .whandler = intel_hda_set_state_sts,
650     },
651 
652     /* interrupts */
653     [ ICH6_REG_INTCTL ] = {
654         .name     = "INTCTL",
655         .size     = 4,
656         .wmask    = 0xc00000ff,
657         .offset   = offsetof(IntelHDAState, int_ctl),
658         .whandler = intel_hda_set_int_ctl,
659     },
660     [ ICH6_REG_INTSTS ] = {
661         .name     = "INTSTS",
662         .size     = 4,
663         .wmask    = 0xc00000ff,
664         .wclear   = 0xc00000ff,
665         .offset   = offsetof(IntelHDAState, int_sts),
666     },
667 
668     /* misc */
669     [ ICH6_REG_WALLCLK ] = {
670         .name     = "WALLCLK",
671         .size     = 4,
672         .offset   = offsetof(IntelHDAState, wall_clk),
673         .rhandler = intel_hda_get_wall_clk,
674     },
675 
676     /* dma engine */
677     [ ICH6_REG_CORBLBASE ] = {
678         .name     = "CORBLBASE",
679         .size     = 4,
680         .wmask    = 0xffffff80,
681         .offset   = offsetof(IntelHDAState, corb_lbase),
682     },
683     [ ICH6_REG_CORBUBASE ] = {
684         .name     = "CORBUBASE",
685         .size     = 4,
686         .wmask    = 0xffffffff,
687         .offset   = offsetof(IntelHDAState, corb_ubase),
688     },
689     [ ICH6_REG_CORBWP ] = {
690         .name     = "CORBWP",
691         .size     = 2,
692         .wmask    = 0xff,
693         .offset   = offsetof(IntelHDAState, corb_wp),
694         .whandler = intel_hda_set_corb_wp,
695     },
696     [ ICH6_REG_CORBRP ] = {
697         .name     = "CORBRP",
698         .size     = 2,
699         .wmask    = 0x80ff,
700         .offset   = offsetof(IntelHDAState, corb_rp),
701     },
702     [ ICH6_REG_CORBCTL ] = {
703         .name     = "CORBCTL",
704         .size     = 1,
705         .wmask    = 0x03,
706         .offset   = offsetof(IntelHDAState, corb_ctl),
707         .whandler = intel_hda_set_corb_ctl,
708     },
709     [ ICH6_REG_CORBSTS ] = {
710         .name     = "CORBSTS",
711         .size     = 1,
712         .wmask    = 0x01,
713         .wclear   = 0x01,
714         .offset   = offsetof(IntelHDAState, corb_sts),
715     },
716     [ ICH6_REG_CORBSIZE ] = {
717         .name     = "CORBSIZE",
718         .size     = 1,
719         .reset    = 0x42,
720         .offset   = offsetof(IntelHDAState, corb_size),
721     },
722     [ ICH6_REG_RIRBLBASE ] = {
723         .name     = "RIRBLBASE",
724         .size     = 4,
725         .wmask    = 0xffffff80,
726         .offset   = offsetof(IntelHDAState, rirb_lbase),
727     },
728     [ ICH6_REG_RIRBUBASE ] = {
729         .name     = "RIRBUBASE",
730         .size     = 4,
731         .wmask    = 0xffffffff,
732         .offset   = offsetof(IntelHDAState, rirb_ubase),
733     },
734     [ ICH6_REG_RIRBWP ] = {
735         .name     = "RIRBWP",
736         .size     = 2,
737         .wmask    = 0x8000,
738         .offset   = offsetof(IntelHDAState, rirb_wp),
739         .whandler = intel_hda_set_rirb_wp,
740     },
741     [ ICH6_REG_RINTCNT ] = {
742         .name     = "RINTCNT",
743         .size     = 2,
744         .wmask    = 0xff,
745         .offset   = offsetof(IntelHDAState, rirb_cnt),
746     },
747     [ ICH6_REG_RIRBCTL ] = {
748         .name     = "RIRBCTL",
749         .size     = 1,
750         .wmask    = 0x07,
751         .offset   = offsetof(IntelHDAState, rirb_ctl),
752     },
753     [ ICH6_REG_RIRBSTS ] = {
754         .name     = "RIRBSTS",
755         .size     = 1,
756         .wmask    = 0x05,
757         .wclear   = 0x05,
758         .offset   = offsetof(IntelHDAState, rirb_sts),
759         .whandler = intel_hda_set_rirb_sts,
760     },
761     [ ICH6_REG_RIRBSIZE ] = {
762         .name     = "RIRBSIZE",
763         .size     = 1,
764         .reset    = 0x42,
765         .offset   = offsetof(IntelHDAState, rirb_size),
766     },
767 
768     [ ICH6_REG_DPLBASE ] = {
769         .name     = "DPLBASE",
770         .size     = 4,
771         .wmask    = 0xffffff81,
772         .offset   = offsetof(IntelHDAState, dp_lbase),
773     },
774     [ ICH6_REG_DPUBASE ] = {
775         .name     = "DPUBASE",
776         .size     = 4,
777         .wmask    = 0xffffffff,
778         .offset   = offsetof(IntelHDAState, dp_ubase),
779     },
780 
781     [ ICH6_REG_IC ] = {
782         .name     = "ICW",
783         .size     = 4,
784         .wmask    = 0xffffffff,
785         .offset   = offsetof(IntelHDAState, icw),
786     },
787     [ ICH6_REG_IR ] = {
788         .name     = "IRR",
789         .size     = 4,
790         .offset   = offsetof(IntelHDAState, irr),
791     },
792     [ ICH6_REG_IRS ] = {
793         .name     = "ICS",
794         .size     = 2,
795         .wmask    = 0x0003,
796         .wclear   = 0x0002,
797         .offset   = offsetof(IntelHDAState, ics),
798         .whandler = intel_hda_set_ics,
799     },
800 
801 #define HDA_STREAM(_t, _i)                                            \
802     [ ST_REG(_i, ICH6_REG_SD_CTL) ] = {                               \
803         .stream   = _i,                                               \
804         .name     = _t stringify(_i) " CTL",                          \
805         .size     = 4,                                                \
806         .wmask    = 0x1cff001f,                                       \
807         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
808         .whandler = intel_hda_set_st_ctl,                             \
809     },                                                                \
810     [ ST_REG(_i, ICH6_REG_SD_CTL) + 2] = {                            \
811         .stream   = _i,                                               \
812         .name     = _t stringify(_i) " CTL(stnr)",                    \
813         .size     = 1,                                                \
814         .shift    = 16,                                               \
815         .wmask    = 0x00ff0000,                                       \
816         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
817         .whandler = intel_hda_set_st_ctl,                             \
818     },                                                                \
819     [ ST_REG(_i, ICH6_REG_SD_STS)] = {                                \
820         .stream   = _i,                                               \
821         .name     = _t stringify(_i) " CTL(sts)",                     \
822         .size     = 1,                                                \
823         .shift    = 24,                                               \
824         .wmask    = 0x1c000000,                                       \
825         .wclear   = 0x1c000000,                                       \
826         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
827         .whandler = intel_hda_set_st_ctl,                             \
828         .reset    = SD_STS_FIFO_READY << 24                           \
829     },                                                                \
830     [ ST_REG(_i, ICH6_REG_SD_LPIB) ] = {                              \
831         .stream   = _i,                                               \
832         .name     = _t stringify(_i) " LPIB",                         \
833         .size     = 4,                                                \
834         .offset   = offsetof(IntelHDAState, st[_i].lpib),             \
835     },                                                                \
836     [ ST_REG(_i, ICH6_REG_SD_CBL) ] = {                               \
837         .stream   = _i,                                               \
838         .name     = _t stringify(_i) " CBL",                          \
839         .size     = 4,                                                \
840         .wmask    = 0xffffffff,                                       \
841         .offset   = offsetof(IntelHDAState, st[_i].cbl),              \
842     },                                                                \
843     [ ST_REG(_i, ICH6_REG_SD_LVI) ] = {                               \
844         .stream   = _i,                                               \
845         .name     = _t stringify(_i) " LVI",                          \
846         .size     = 2,                                                \
847         .wmask    = 0x00ff,                                           \
848         .offset   = offsetof(IntelHDAState, st[_i].lvi),              \
849     },                                                                \
850     [ ST_REG(_i, ICH6_REG_SD_FIFOSIZE) ] = {                          \
851         .stream   = _i,                                               \
852         .name     = _t stringify(_i) " FIFOS",                        \
853         .size     = 2,                                                \
854         .reset    = HDA_BUFFER_SIZE,                                  \
855     },                                                                \
856     [ ST_REG(_i, ICH6_REG_SD_FORMAT) ] = {                            \
857         .stream   = _i,                                               \
858         .name     = _t stringify(_i) " FMT",                          \
859         .size     = 2,                                                \
860         .wmask    = 0x7f7f,                                           \
861         .offset   = offsetof(IntelHDAState, st[_i].fmt),              \
862     },                                                                \
863     [ ST_REG(_i, ICH6_REG_SD_BDLPL) ] = {                             \
864         .stream   = _i,                                               \
865         .name     = _t stringify(_i) " BDLPL",                        \
866         .size     = 4,                                                \
867         .wmask    = 0xffffff80,                                       \
868         .offset   = offsetof(IntelHDAState, st[_i].bdlp_lbase),       \
869     },                                                                \
870     [ ST_REG(_i, ICH6_REG_SD_BDLPU) ] = {                             \
871         .stream   = _i,                                               \
872         .name     = _t stringify(_i) " BDLPU",                        \
873         .size     = 4,                                                \
874         .wmask    = 0xffffffff,                                       \
875         .offset   = offsetof(IntelHDAState, st[_i].bdlp_ubase),       \
876     },                                                                \
877 
878     HDA_STREAM("IN", 0)
879     HDA_STREAM("IN", 1)
880     HDA_STREAM("IN", 2)
881     HDA_STREAM("IN", 3)
882 
883     HDA_STREAM("OUT", 4)
884     HDA_STREAM("OUT", 5)
885     HDA_STREAM("OUT", 6)
886     HDA_STREAM("OUT", 7)
887 
888 };
889 
890 static const IntelHDAReg *intel_hda_reg_find(IntelHDAState *d, hwaddr addr)
891 {
892     const IntelHDAReg *reg;
893 
894     if (addr >= ARRAY_SIZE(regtab)) {
895         goto noreg;
896     }
897     reg = regtab+addr;
898     if (reg->name == NULL) {
899         goto noreg;
900     }
901     return reg;
902 
903 noreg:
904     dprint(d, 1, "unknown register, addr 0x%x\n", (int) addr);
905     return NULL;
906 }
907 
908 static uint32_t *intel_hda_reg_addr(IntelHDAState *d, const IntelHDAReg *reg)
909 {
910     uint8_t *addr = (void*)d;
911 
912     addr += reg->offset;
913     return (uint32_t*)addr;
914 }
915 
916 static void intel_hda_reg_write(IntelHDAState *d, const IntelHDAReg *reg, uint32_t val,
917                                 uint32_t wmask)
918 {
919     uint32_t *addr;
920     uint32_t old;
921 
922     if (!reg) {
923         return;
924     }
925     if (!reg->wmask) {
926         qemu_log_mask(LOG_GUEST_ERROR, "intel-hda: write to r/o reg %s\n",
927                       reg->name);
928         return;
929     }
930 
931     if (d->debug) {
932         time_t now = time(NULL);
933         if (d->last_write && d->last_reg == reg && d->last_val == val) {
934             d->repeat_count++;
935             if (d->last_sec != now) {
936                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
937                 d->last_sec = now;
938                 d->repeat_count = 0;
939             }
940         } else {
941             if (d->repeat_count) {
942                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
943             }
944             dprint(d, 2, "write %-16s: 0x%x (%x)\n", reg->name, val, wmask);
945             d->last_write = 1;
946             d->last_reg   = reg;
947             d->last_val   = val;
948             d->last_sec   = now;
949             d->repeat_count = 0;
950         }
951     }
952     assert(reg->offset != 0);
953 
954     addr = intel_hda_reg_addr(d, reg);
955     old = *addr;
956 
957     if (reg->shift) {
958         val <<= reg->shift;
959         wmask <<= reg->shift;
960     }
961     wmask &= reg->wmask;
962     *addr &= ~wmask;
963     *addr |= wmask & val;
964     *addr &= ~(val & reg->wclear);
965 
966     if (reg->whandler) {
967         reg->whandler(d, reg, old);
968     }
969 }
970 
971 static uint32_t intel_hda_reg_read(IntelHDAState *d, const IntelHDAReg *reg,
972                                    uint32_t rmask)
973 {
974     uint32_t *addr, ret;
975 
976     if (!reg) {
977         return 0;
978     }
979 
980     if (reg->rhandler) {
981         reg->rhandler(d, reg);
982     }
983 
984     if (reg->offset == 0) {
985         /* constant read-only register */
986         ret = reg->reset;
987     } else {
988         addr = intel_hda_reg_addr(d, reg);
989         ret = *addr;
990         if (reg->shift) {
991             ret >>= reg->shift;
992         }
993         ret &= rmask;
994     }
995     if (d->debug) {
996         time_t now = time(NULL);
997         if (!d->last_write && d->last_reg == reg && d->last_val == ret) {
998             d->repeat_count++;
999             if (d->last_sec != now) {
1000                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1001                 d->last_sec = now;
1002                 d->repeat_count = 0;
1003             }
1004         } else {
1005             if (d->repeat_count) {
1006                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1007             }
1008             dprint(d, 2, "read  %-16s: 0x%x (%x)\n", reg->name, ret, rmask);
1009             d->last_write = 0;
1010             d->last_reg   = reg;
1011             d->last_val   = ret;
1012             d->last_sec   = now;
1013             d->repeat_count = 0;
1014         }
1015     }
1016     return ret;
1017 }
1018 
1019 static void intel_hda_regs_reset(IntelHDAState *d)
1020 {
1021     uint32_t *addr;
1022     int i;
1023 
1024     for (i = 0; i < ARRAY_SIZE(regtab); i++) {
1025         if (regtab[i].name == NULL) {
1026             continue;
1027         }
1028         if (regtab[i].offset == 0) {
1029             continue;
1030         }
1031         addr = intel_hda_reg_addr(d, regtab + i);
1032         *addr = regtab[i].reset;
1033     }
1034 }
1035 
1036 /* --------------------------------------------------------------------- */
1037 
1038 static void intel_hda_mmio_write(void *opaque, hwaddr addr, uint64_t val,
1039                                  unsigned size)
1040 {
1041     IntelHDAState *d = opaque;
1042     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1043 
1044     intel_hda_reg_write(d, reg, val, MAKE_64BIT_MASK(0, size * 8));
1045 }
1046 
1047 static uint64_t intel_hda_mmio_read(void *opaque, hwaddr addr, unsigned size)
1048 {
1049     IntelHDAState *d = opaque;
1050     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1051 
1052     return intel_hda_reg_read(d, reg, MAKE_64BIT_MASK(0, size * 8));
1053 }
1054 
1055 static const MemoryRegionOps intel_hda_mmio_ops = {
1056     .read = intel_hda_mmio_read,
1057     .write = intel_hda_mmio_write,
1058     .impl = {
1059         .min_access_size = 1,
1060         .max_access_size = 4,
1061     },
1062     .endianness = DEVICE_NATIVE_ENDIAN,
1063 };
1064 
1065 /* --------------------------------------------------------------------- */
1066 
1067 static void intel_hda_reset(DeviceState *dev)
1068 {
1069     BusChild *kid;
1070     IntelHDAState *d = INTEL_HDA(dev);
1071     HDACodecDevice *cdev;
1072 
1073     intel_hda_regs_reset(d);
1074     d->wall_base_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
1075 
1076     /* reset codecs */
1077     QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
1078         DeviceState *qdev = kid->child;
1079         cdev = HDA_CODEC_DEVICE(qdev);
1080         device_legacy_reset(DEVICE(cdev));
1081         d->state_sts |= (1 << cdev->cad);
1082     }
1083     intel_hda_update_irq(d);
1084 }
1085 
1086 static void intel_hda_realize(PCIDevice *pci, Error **errp)
1087 {
1088     IntelHDAState *d = INTEL_HDA(pci);
1089     uint8_t *conf = d->pci.config;
1090     Error *err = NULL;
1091     int ret;
1092 
1093     d->name = object_get_typename(OBJECT(d));
1094 
1095     pci_config_set_interrupt_pin(conf, 1);
1096 
1097     /* HDCTL off 0x40 bit 0 selects signaling mode (1-HDA, 0 - Ac97) 18.1.19 */
1098     conf[0x40] = 0x01;
1099 
1100     if (d->msi != ON_OFF_AUTO_OFF) {
1101         ret = msi_init(&d->pci, d->old_msi_addr ? 0x50 : 0x60,
1102                        1, true, false, &err);
1103         /* Any error other than -ENOTSUP(board's MSI support is broken)
1104          * is a programming error */
1105         assert(!ret || ret == -ENOTSUP);
1106         if (ret && d->msi == ON_OFF_AUTO_ON) {
1107             /* Can't satisfy user's explicit msi=on request, fail */
1108             error_append_hint(&err, "You have to use msi=auto (default) or "
1109                     "msi=off with this machine type.\n");
1110             error_propagate(errp, err);
1111             return;
1112         }
1113         assert(!err || d->msi == ON_OFF_AUTO_AUTO);
1114         /* With msi=auto, we fall back to MSI off silently */
1115         error_free(err);
1116     }
1117 
1118     memory_region_init(&d->container, OBJECT(d),
1119                        "intel-hda-container", 0x4000);
1120     memory_region_init_io(&d->mmio, OBJECT(d), &intel_hda_mmio_ops, d,
1121                           "intel-hda", 0x2000);
1122     memory_region_add_subregion(&d->container, 0x0000, &d->mmio);
1123     memory_region_init_alias(&d->alias, OBJECT(d), "intel-hda-alias",
1124                              &d->mmio, 0, 0x2000);
1125     memory_region_add_subregion(&d->container, 0x2000, &d->alias);
1126     pci_register_bar(&d->pci, 0, 0, &d->container);
1127 
1128     hda_codec_bus_init(DEVICE(pci), &d->codecs, sizeof(d->codecs),
1129                        intel_hda_response, intel_hda_xfer);
1130 }
1131 
1132 static void intel_hda_exit(PCIDevice *pci)
1133 {
1134     IntelHDAState *d = INTEL_HDA(pci);
1135 
1136     msi_uninit(&d->pci);
1137 }
1138 
1139 static int intel_hda_post_load(void *opaque, int version)
1140 {
1141     IntelHDAState* d = opaque;
1142     int i;
1143 
1144     dprint(d, 1, "%s\n", __func__);
1145     for (i = 0; i < ARRAY_SIZE(d->st); i++) {
1146         if (d->st[i].ctl & 0x02) {
1147             intel_hda_parse_bdl(d, &d->st[i]);
1148         }
1149     }
1150     intel_hda_update_irq(d);
1151     return 0;
1152 }
1153 
1154 static const VMStateDescription vmstate_intel_hda_stream = {
1155     .name = "intel-hda-stream",
1156     .version_id = 1,
1157     .fields = (VMStateField[]) {
1158         VMSTATE_UINT32(ctl, IntelHDAStream),
1159         VMSTATE_UINT32(lpib, IntelHDAStream),
1160         VMSTATE_UINT32(cbl, IntelHDAStream),
1161         VMSTATE_UINT32(lvi, IntelHDAStream),
1162         VMSTATE_UINT32(fmt, IntelHDAStream),
1163         VMSTATE_UINT32(bdlp_lbase, IntelHDAStream),
1164         VMSTATE_UINT32(bdlp_ubase, IntelHDAStream),
1165         VMSTATE_END_OF_LIST()
1166     }
1167 };
1168 
1169 static const VMStateDescription vmstate_intel_hda = {
1170     .name = "intel-hda",
1171     .version_id = 1,
1172     .post_load = intel_hda_post_load,
1173     .fields = (VMStateField[]) {
1174         VMSTATE_PCI_DEVICE(pci, IntelHDAState),
1175 
1176         /* registers */
1177         VMSTATE_UINT32(g_ctl, IntelHDAState),
1178         VMSTATE_UINT32(wake_en, IntelHDAState),
1179         VMSTATE_UINT32(state_sts, IntelHDAState),
1180         VMSTATE_UINT32(int_ctl, IntelHDAState),
1181         VMSTATE_UINT32(int_sts, IntelHDAState),
1182         VMSTATE_UINT32(wall_clk, IntelHDAState),
1183         VMSTATE_UINT32(corb_lbase, IntelHDAState),
1184         VMSTATE_UINT32(corb_ubase, IntelHDAState),
1185         VMSTATE_UINT32(corb_rp, IntelHDAState),
1186         VMSTATE_UINT32(corb_wp, IntelHDAState),
1187         VMSTATE_UINT32(corb_ctl, IntelHDAState),
1188         VMSTATE_UINT32(corb_sts, IntelHDAState),
1189         VMSTATE_UINT32(corb_size, IntelHDAState),
1190         VMSTATE_UINT32(rirb_lbase, IntelHDAState),
1191         VMSTATE_UINT32(rirb_ubase, IntelHDAState),
1192         VMSTATE_UINT32(rirb_wp, IntelHDAState),
1193         VMSTATE_UINT32(rirb_cnt, IntelHDAState),
1194         VMSTATE_UINT32(rirb_ctl, IntelHDAState),
1195         VMSTATE_UINT32(rirb_sts, IntelHDAState),
1196         VMSTATE_UINT32(rirb_size, IntelHDAState),
1197         VMSTATE_UINT32(dp_lbase, IntelHDAState),
1198         VMSTATE_UINT32(dp_ubase, IntelHDAState),
1199         VMSTATE_UINT32(icw, IntelHDAState),
1200         VMSTATE_UINT32(irr, IntelHDAState),
1201         VMSTATE_UINT32(ics, IntelHDAState),
1202         VMSTATE_STRUCT_ARRAY(st, IntelHDAState, 8, 0,
1203                              vmstate_intel_hda_stream,
1204                              IntelHDAStream),
1205 
1206         /* additional state info */
1207         VMSTATE_UINT32(rirb_count, IntelHDAState),
1208         VMSTATE_INT64(wall_base_ns, IntelHDAState),
1209 
1210         VMSTATE_END_OF_LIST()
1211     }
1212 };
1213 
1214 static Property intel_hda_properties[] = {
1215     DEFINE_PROP_UINT32("debug", IntelHDAState, debug, 0),
1216     DEFINE_PROP_ON_OFF_AUTO("msi", IntelHDAState, msi, ON_OFF_AUTO_AUTO),
1217     DEFINE_PROP_BOOL("old_msi_addr", IntelHDAState, old_msi_addr, false),
1218     DEFINE_PROP_END_OF_LIST(),
1219 };
1220 
1221 static void intel_hda_class_init(ObjectClass *klass, void *data)
1222 {
1223     DeviceClass *dc = DEVICE_CLASS(klass);
1224     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1225 
1226     k->realize = intel_hda_realize;
1227     k->exit = intel_hda_exit;
1228     k->vendor_id = PCI_VENDOR_ID_INTEL;
1229     k->class_id = PCI_CLASS_MULTIMEDIA_HD_AUDIO;
1230     dc->reset = intel_hda_reset;
1231     dc->vmsd = &vmstate_intel_hda;
1232     device_class_set_props(dc, intel_hda_properties);
1233 }
1234 
1235 static void intel_hda_class_init_ich6(ObjectClass *klass, void *data)
1236 {
1237     DeviceClass *dc = DEVICE_CLASS(klass);
1238     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1239 
1240     k->device_id = 0x2668;
1241     k->revision = 1;
1242     set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
1243     dc->desc = "Intel HD Audio Controller (ich6)";
1244 }
1245 
1246 static void intel_hda_class_init_ich9(ObjectClass *klass, void *data)
1247 {
1248     DeviceClass *dc = DEVICE_CLASS(klass);
1249     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1250 
1251     k->device_id = 0x293e;
1252     k->revision = 3;
1253     set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
1254     dc->desc = "Intel HD Audio Controller (ich9)";
1255 }
1256 
1257 static const TypeInfo intel_hda_info = {
1258     .name          = TYPE_INTEL_HDA_GENERIC,
1259     .parent        = TYPE_PCI_DEVICE,
1260     .instance_size = sizeof(IntelHDAState),
1261     .class_init    = intel_hda_class_init,
1262     .abstract      = true,
1263     .interfaces = (InterfaceInfo[]) {
1264         { INTERFACE_CONVENTIONAL_PCI_DEVICE },
1265         { },
1266     },
1267 };
1268 
1269 static const TypeInfo intel_hda_info_ich6 = {
1270     .name          = "intel-hda",
1271     .parent        = TYPE_INTEL_HDA_GENERIC,
1272     .class_init    = intel_hda_class_init_ich6,
1273 };
1274 
1275 static const TypeInfo intel_hda_info_ich9 = {
1276     .name          = "ich9-intel-hda",
1277     .parent        = TYPE_INTEL_HDA_GENERIC,
1278     .class_init    = intel_hda_class_init_ich9,
1279 };
1280 
1281 static void hda_codec_device_class_init(ObjectClass *klass, void *data)
1282 {
1283     DeviceClass *k = DEVICE_CLASS(klass);
1284     k->realize = hda_codec_dev_realize;
1285     k->unrealize = hda_codec_dev_unrealize;
1286     set_bit(DEVICE_CATEGORY_SOUND, k->categories);
1287     k->bus_type = TYPE_HDA_BUS;
1288     device_class_set_props(k, hda_props);
1289 }
1290 
1291 static const TypeInfo hda_codec_device_type_info = {
1292     .name = TYPE_HDA_CODEC_DEVICE,
1293     .parent = TYPE_DEVICE,
1294     .instance_size = sizeof(HDACodecDevice),
1295     .abstract = true,
1296     .class_size = sizeof(HDACodecDeviceClass),
1297     .class_init = hda_codec_device_class_init,
1298 };
1299 
1300 /*
1301  * create intel hda controller with codec attached to it,
1302  * so '-soundhw hda' works.
1303  */
1304 static int intel_hda_and_codec_init(PCIBus *bus)
1305 {
1306     DeviceState *controller;
1307     BusState *hdabus;
1308     DeviceState *codec;
1309 
1310     controller = DEVICE(pci_create_simple(bus, -1, "intel-hda"));
1311     hdabus = QLIST_FIRST(&controller->child_bus);
1312     codec = qdev_create(hdabus, "hda-duplex");
1313     qdev_init_nofail(codec);
1314     return 0;
1315 }
1316 
1317 static void intel_hda_register_types(void)
1318 {
1319     type_register_static(&hda_codec_bus_info);
1320     type_register_static(&intel_hda_info);
1321     type_register_static(&intel_hda_info_ich6);
1322     type_register_static(&intel_hda_info_ich9);
1323     type_register_static(&hda_codec_device_type_info);
1324     pci_register_soundhw("hda", "Intel HD Audio", intel_hda_and_codec_init);
1325 }
1326 
1327 type_init(intel_hda_register_types)
1328