xref: /openbmc/qemu/hw/audio/intel-hda.c (revision 91aef87a)
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 mmio;
185     uint32_t rirb_count;
186     int64_t wall_base_ns;
187 
188     /* debug logging */
189     const IntelHDAReg *last_reg;
190     uint32_t last_val;
191     uint32_t last_write;
192     uint32_t last_sec;
193     uint32_t repeat_count;
194 
195     /* properties */
196     uint32_t debug;
197     OnOffAuto msi;
198     bool old_msi_addr;
199 };
200 
201 #define TYPE_INTEL_HDA_GENERIC "intel-hda-generic"
202 
203 #define INTEL_HDA(obj) \
204     OBJECT_CHECK(IntelHDAState, (obj), TYPE_INTEL_HDA_GENERIC)
205 
206 struct IntelHDAReg {
207     const char *name;      /* register name */
208     uint32_t   size;       /* size in bytes */
209     uint32_t   reset;      /* reset value */
210     uint32_t   wmask;      /* write mask */
211     uint32_t   wclear;     /* write 1 to clear bits */
212     uint32_t   offset;     /* location in IntelHDAState */
213     uint32_t   shift;      /* byte access entries for dwords */
214     uint32_t   stream;
215     void       (*whandler)(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old);
216     void       (*rhandler)(IntelHDAState *d, const IntelHDAReg *reg);
217 };
218 
219 static void intel_hda_reset(DeviceState *dev);
220 
221 /* --------------------------------------------------------------------- */
222 
223 static hwaddr intel_hda_addr(uint32_t lbase, uint32_t ubase)
224 {
225     return ((uint64_t)ubase << 32) | lbase;
226 }
227 
228 static void intel_hda_update_int_sts(IntelHDAState *d)
229 {
230     uint32_t sts = 0;
231     uint32_t i;
232 
233     /* update controller status */
234     if (d->rirb_sts & ICH6_RBSTS_IRQ) {
235         sts |= (1 << 30);
236     }
237     if (d->rirb_sts & ICH6_RBSTS_OVERRUN) {
238         sts |= (1 << 30);
239     }
240     if (d->state_sts & d->wake_en) {
241         sts |= (1 << 30);
242     }
243 
244     /* update stream status */
245     for (i = 0; i < 8; i++) {
246         /* buffer completion interrupt */
247         if (d->st[i].ctl & (1 << 26)) {
248             sts |= (1 << i);
249         }
250     }
251 
252     /* update global status */
253     if (sts & d->int_ctl) {
254         sts |= (1U << 31);
255     }
256 
257     d->int_sts = sts;
258 }
259 
260 static void intel_hda_update_irq(IntelHDAState *d)
261 {
262     bool msi = msi_enabled(&d->pci);
263     int level;
264 
265     intel_hda_update_int_sts(d);
266     if (d->int_sts & (1U << 31) && d->int_ctl & (1U << 31)) {
267         level = 1;
268     } else {
269         level = 0;
270     }
271     dprint(d, 2, "%s: level %d [%s]\n", __func__,
272            level, msi ? "msi" : "intx");
273     if (msi) {
274         if (level) {
275             msi_notify(&d->pci, 0);
276         }
277     } else {
278         pci_set_irq(&d->pci, level);
279     }
280 }
281 
282 static int intel_hda_send_command(IntelHDAState *d, uint32_t verb)
283 {
284     uint32_t cad, nid, data;
285     HDACodecDevice *codec;
286     HDACodecDeviceClass *cdc;
287 
288     cad = (verb >> 28) & 0x0f;
289     if (verb & (1 << 27)) {
290         /* indirect node addressing, not specified in HDA 1.0 */
291         dprint(d, 1, "%s: indirect node addressing (guest bug?)\n", __func__);
292         return -1;
293     }
294     nid = (verb >> 20) & 0x7f;
295     data = verb & 0xfffff;
296 
297     codec = hda_codec_find(&d->codecs, cad);
298     if (codec == NULL) {
299         dprint(d, 1, "%s: addressed non-existing codec\n", __func__);
300         return -1;
301     }
302     cdc = HDA_CODEC_DEVICE_GET_CLASS(codec);
303     cdc->command(codec, nid, data);
304     return 0;
305 }
306 
307 static void intel_hda_corb_run(IntelHDAState *d)
308 {
309     hwaddr addr;
310     uint32_t rp, verb;
311 
312     if (d->ics & ICH6_IRS_BUSY) {
313         dprint(d, 2, "%s: [icw] verb 0x%08x\n", __func__, d->icw);
314         intel_hda_send_command(d, d->icw);
315         return;
316     }
317 
318     for (;;) {
319         if (!(d->corb_ctl & ICH6_CORBCTL_RUN)) {
320             dprint(d, 2, "%s: !run\n", __func__);
321             return;
322         }
323         if ((d->corb_rp & 0xff) == d->corb_wp) {
324             dprint(d, 2, "%s: corb ring empty\n", __func__);
325             return;
326         }
327         if (d->rirb_count == d->rirb_cnt) {
328             dprint(d, 2, "%s: rirb count reached\n", __func__);
329             return;
330         }
331 
332         rp = (d->corb_rp + 1) & 0xff;
333         addr = intel_hda_addr(d->corb_lbase, d->corb_ubase);
334         verb = ldl_le_pci_dma(&d->pci, addr + 4*rp);
335         d->corb_rp = rp;
336 
337         dprint(d, 2, "%s: [rp 0x%x] verb 0x%08x\n", __func__, rp, verb);
338         intel_hda_send_command(d, verb);
339     }
340 }
341 
342 static void intel_hda_response(HDACodecDevice *dev, bool solicited, uint32_t response)
343 {
344     HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
345     IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
346     hwaddr addr;
347     uint32_t wp, ex;
348 
349     if (d->ics & ICH6_IRS_BUSY) {
350         dprint(d, 2, "%s: [irr] response 0x%x, cad 0x%x\n",
351                __func__, response, dev->cad);
352         d->irr = response;
353         d->ics &= ~(ICH6_IRS_BUSY | 0xf0);
354         d->ics |= (ICH6_IRS_VALID | (dev->cad << 4));
355         return;
356     }
357 
358     if (!(d->rirb_ctl & ICH6_RBCTL_DMA_EN)) {
359         dprint(d, 1, "%s: rirb dma disabled, drop codec response\n", __func__);
360         return;
361     }
362 
363     ex = (solicited ? 0 : (1 << 4)) | dev->cad;
364     wp = (d->rirb_wp + 1) & 0xff;
365     addr = intel_hda_addr(d->rirb_lbase, d->rirb_ubase);
366     stl_le_pci_dma(&d->pci, addr + 8*wp, response);
367     stl_le_pci_dma(&d->pci, addr + 8*wp + 4, ex);
368     d->rirb_wp = wp;
369 
370     dprint(d, 2, "%s: [wp 0x%x] response 0x%x, extra 0x%x\n",
371            __func__, wp, response, ex);
372 
373     d->rirb_count++;
374     if (d->rirb_count == d->rirb_cnt) {
375         dprint(d, 2, "%s: rirb count reached (%d)\n", __func__, d->rirb_count);
376         if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
377             d->rirb_sts |= ICH6_RBSTS_IRQ;
378             intel_hda_update_irq(d);
379         }
380     } else if ((d->corb_rp & 0xff) == d->corb_wp) {
381         dprint(d, 2, "%s: corb ring empty (%d/%d)\n", __func__,
382                d->rirb_count, d->rirb_cnt);
383         if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
384             d->rirb_sts |= ICH6_RBSTS_IRQ;
385             intel_hda_update_irq(d);
386         }
387     }
388 }
389 
390 static bool intel_hda_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
391                            uint8_t *buf, uint32_t len)
392 {
393     HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
394     IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
395     hwaddr addr;
396     uint32_t s, copy, left;
397     IntelHDAStream *st;
398     bool irq = false;
399 
400     st = output ? d->st + 4 : d->st;
401     for (s = 0; s < 4; s++) {
402         if (stnr == ((st[s].ctl >> 20) & 0x0f)) {
403             st = st + s;
404             break;
405         }
406     }
407     if (s == 4) {
408         return false;
409     }
410     if (st->bpl == NULL) {
411         return false;
412     }
413 
414     left = len;
415     s = st->bentries;
416     while (left > 0 && s-- > 0) {
417         copy = left;
418         if (copy > st->bsize - st->lpib)
419             copy = st->bsize - st->lpib;
420         if (copy > st->bpl[st->be].len - st->bp)
421             copy = st->bpl[st->be].len - st->bp;
422 
423         dprint(d, 3, "dma: entry %d, pos %d/%d, copy %d\n",
424                st->be, st->bp, st->bpl[st->be].len, copy);
425 
426         pci_dma_rw(&d->pci, st->bpl[st->be].addr + st->bp, buf, copy, !output);
427         st->lpib += copy;
428         st->bp += copy;
429         buf += copy;
430         left -= copy;
431 
432         if (st->bpl[st->be].len == st->bp) {
433             /* bpl entry filled */
434             if (st->bpl[st->be].flags & 0x01) {
435                 irq = true;
436             }
437             st->bp = 0;
438             st->be++;
439             if (st->be == st->bentries) {
440                 /* bpl wrap around */
441                 st->be = 0;
442                 st->lpib = 0;
443             }
444         }
445     }
446     if (d->dp_lbase & 0x01) {
447         s = st - d->st;
448         addr = intel_hda_addr(d->dp_lbase & ~0x01, d->dp_ubase);
449         stl_le_pci_dma(&d->pci, addr + 8*s, st->lpib);
450     }
451     dprint(d, 3, "dma: --\n");
452 
453     if (irq) {
454         st->ctl |= (1 << 26); /* buffer completion interrupt */
455         intel_hda_update_irq(d);
456     }
457     return true;
458 }
459 
460 static void intel_hda_parse_bdl(IntelHDAState *d, IntelHDAStream *st)
461 {
462     hwaddr addr;
463     uint8_t buf[16];
464     uint32_t i;
465 
466     addr = intel_hda_addr(st->bdlp_lbase, st->bdlp_ubase);
467     st->bentries = st->lvi +1;
468     g_free(st->bpl);
469     st->bpl = g_malloc(sizeof(bpl) * st->bentries);
470     for (i = 0; i < st->bentries; i++, addr += 16) {
471         pci_dma_read(&d->pci, addr, buf, 16);
472         st->bpl[i].addr  = le64_to_cpu(*(uint64_t *)buf);
473         st->bpl[i].len   = le32_to_cpu(*(uint32_t *)(buf + 8));
474         st->bpl[i].flags = le32_to_cpu(*(uint32_t *)(buf + 12));
475         dprint(d, 1, "bdl/%d: 0x%" PRIx64 " +0x%x, 0x%x\n",
476                i, st->bpl[i].addr, st->bpl[i].len, st->bpl[i].flags);
477     }
478 
479     st->bsize = st->cbl;
480     st->lpib  = 0;
481     st->be    = 0;
482     st->bp    = 0;
483 }
484 
485 static void intel_hda_notify_codecs(IntelHDAState *d, uint32_t stream, bool running, bool output)
486 {
487     BusChild *kid;
488     HDACodecDevice *cdev;
489 
490     QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
491         DeviceState *qdev = kid->child;
492         HDACodecDeviceClass *cdc;
493 
494         cdev = HDA_CODEC_DEVICE(qdev);
495         cdc = HDA_CODEC_DEVICE_GET_CLASS(cdev);
496         if (cdc->stream) {
497             cdc->stream(cdev, stream, running, output);
498         }
499     }
500 }
501 
502 /* --------------------------------------------------------------------- */
503 
504 static void intel_hda_set_g_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
505 {
506     if ((d->g_ctl & ICH6_GCTL_RESET) == 0) {
507         intel_hda_reset(DEVICE(d));
508     }
509 }
510 
511 static void intel_hda_set_wake_en(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
512 {
513     intel_hda_update_irq(d);
514 }
515 
516 static void intel_hda_set_state_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
517 {
518     intel_hda_update_irq(d);
519 }
520 
521 static void intel_hda_set_int_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
522 {
523     intel_hda_update_irq(d);
524 }
525 
526 static void intel_hda_get_wall_clk(IntelHDAState *d, const IntelHDAReg *reg)
527 {
528     int64_t ns;
529 
530     ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - d->wall_base_ns;
531     d->wall_clk = (uint32_t)(ns * 24 / 1000);  /* 24 MHz */
532 }
533 
534 static void intel_hda_set_corb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
535 {
536     intel_hda_corb_run(d);
537 }
538 
539 static void intel_hda_set_corb_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
540 {
541     intel_hda_corb_run(d);
542 }
543 
544 static void intel_hda_set_rirb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
545 {
546     if (d->rirb_wp & ICH6_RIRBWP_RST) {
547         d->rirb_wp = 0;
548     }
549 }
550 
551 static void intel_hda_set_rirb_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
552 {
553     intel_hda_update_irq(d);
554 
555     if ((old & ICH6_RBSTS_IRQ) && !(d->rirb_sts & ICH6_RBSTS_IRQ)) {
556         /* cleared ICH6_RBSTS_IRQ */
557         d->rirb_count = 0;
558         intel_hda_corb_run(d);
559     }
560 }
561 
562 static void intel_hda_set_ics(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
563 {
564     if (d->ics & ICH6_IRS_BUSY) {
565         intel_hda_corb_run(d);
566     }
567 }
568 
569 static void intel_hda_set_st_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
570 {
571     bool output = reg->stream >= 4;
572     IntelHDAStream *st = d->st + reg->stream;
573 
574     if (st->ctl & 0x01) {
575         /* reset */
576         dprint(d, 1, "st #%d: reset\n", reg->stream);
577         st->ctl = SD_STS_FIFO_READY << 24;
578     }
579     if ((st->ctl & 0x02) != (old & 0x02)) {
580         uint32_t stnr = (st->ctl >> 20) & 0x0f;
581         /* run bit flipped */
582         if (st->ctl & 0x02) {
583             /* start */
584             dprint(d, 1, "st #%d: start %d (ring buf %d bytes)\n",
585                    reg->stream, stnr, st->cbl);
586             intel_hda_parse_bdl(d, st);
587             intel_hda_notify_codecs(d, stnr, true, output);
588         } else {
589             /* stop */
590             dprint(d, 1, "st #%d: stop %d\n", reg->stream, stnr);
591             intel_hda_notify_codecs(d, stnr, false, output);
592         }
593     }
594     intel_hda_update_irq(d);
595 }
596 
597 /* --------------------------------------------------------------------- */
598 
599 #define ST_REG(_n, _o) (0x80 + (_n) * 0x20 + (_o))
600 
601 static const struct IntelHDAReg regtab[] = {
602     /* global */
603     [ ICH6_REG_GCAP ] = {
604         .name     = "GCAP",
605         .size     = 2,
606         .reset    = 0x4401,
607     },
608     [ ICH6_REG_VMIN ] = {
609         .name     = "VMIN",
610         .size     = 1,
611     },
612     [ ICH6_REG_VMAJ ] = {
613         .name     = "VMAJ",
614         .size     = 1,
615         .reset    = 1,
616     },
617     [ ICH6_REG_OUTPAY ] = {
618         .name     = "OUTPAY",
619         .size     = 2,
620         .reset    = 0x3c,
621     },
622     [ ICH6_REG_INPAY ] = {
623         .name     = "INPAY",
624         .size     = 2,
625         .reset    = 0x1d,
626     },
627     [ ICH6_REG_GCTL ] = {
628         .name     = "GCTL",
629         .size     = 4,
630         .wmask    = 0x0103,
631         .offset   = offsetof(IntelHDAState, g_ctl),
632         .whandler = intel_hda_set_g_ctl,
633     },
634     [ ICH6_REG_WAKEEN ] = {
635         .name     = "WAKEEN",
636         .size     = 2,
637         .wmask    = 0x7fff,
638         .offset   = offsetof(IntelHDAState, wake_en),
639         .whandler = intel_hda_set_wake_en,
640     },
641     [ ICH6_REG_STATESTS ] = {
642         .name     = "STATESTS",
643         .size     = 2,
644         .wmask    = 0x7fff,
645         .wclear   = 0x7fff,
646         .offset   = offsetof(IntelHDAState, state_sts),
647         .whandler = intel_hda_set_state_sts,
648     },
649 
650     /* interrupts */
651     [ ICH6_REG_INTCTL ] = {
652         .name     = "INTCTL",
653         .size     = 4,
654         .wmask    = 0xc00000ff,
655         .offset   = offsetof(IntelHDAState, int_ctl),
656         .whandler = intel_hda_set_int_ctl,
657     },
658     [ ICH6_REG_INTSTS ] = {
659         .name     = "INTSTS",
660         .size     = 4,
661         .wmask    = 0xc00000ff,
662         .wclear   = 0xc00000ff,
663         .offset   = offsetof(IntelHDAState, int_sts),
664     },
665 
666     /* misc */
667     [ ICH6_REG_WALLCLK ] = {
668         .name     = "WALLCLK",
669         .size     = 4,
670         .offset   = offsetof(IntelHDAState, wall_clk),
671         .rhandler = intel_hda_get_wall_clk,
672     },
673     [ ICH6_REG_WALLCLK + 0x2000 ] = {
674         .name     = "WALLCLK(alias)",
675         .size     = 4,
676         .offset   = offsetof(IntelHDAState, wall_clk),
677         .rhandler = intel_hda_get_wall_clk,
678     },
679 
680     /* dma engine */
681     [ ICH6_REG_CORBLBASE ] = {
682         .name     = "CORBLBASE",
683         .size     = 4,
684         .wmask    = 0xffffff80,
685         .offset   = offsetof(IntelHDAState, corb_lbase),
686     },
687     [ ICH6_REG_CORBUBASE ] = {
688         .name     = "CORBUBASE",
689         .size     = 4,
690         .wmask    = 0xffffffff,
691         .offset   = offsetof(IntelHDAState, corb_ubase),
692     },
693     [ ICH6_REG_CORBWP ] = {
694         .name     = "CORBWP",
695         .size     = 2,
696         .wmask    = 0xff,
697         .offset   = offsetof(IntelHDAState, corb_wp),
698         .whandler = intel_hda_set_corb_wp,
699     },
700     [ ICH6_REG_CORBRP ] = {
701         .name     = "CORBRP",
702         .size     = 2,
703         .wmask    = 0x80ff,
704         .offset   = offsetof(IntelHDAState, corb_rp),
705     },
706     [ ICH6_REG_CORBCTL ] = {
707         .name     = "CORBCTL",
708         .size     = 1,
709         .wmask    = 0x03,
710         .offset   = offsetof(IntelHDAState, corb_ctl),
711         .whandler = intel_hda_set_corb_ctl,
712     },
713     [ ICH6_REG_CORBSTS ] = {
714         .name     = "CORBSTS",
715         .size     = 1,
716         .wmask    = 0x01,
717         .wclear   = 0x01,
718         .offset   = offsetof(IntelHDAState, corb_sts),
719     },
720     [ ICH6_REG_CORBSIZE ] = {
721         .name     = "CORBSIZE",
722         .size     = 1,
723         .reset    = 0x42,
724         .offset   = offsetof(IntelHDAState, corb_size),
725     },
726     [ ICH6_REG_RIRBLBASE ] = {
727         .name     = "RIRBLBASE",
728         .size     = 4,
729         .wmask    = 0xffffff80,
730         .offset   = offsetof(IntelHDAState, rirb_lbase),
731     },
732     [ ICH6_REG_RIRBUBASE ] = {
733         .name     = "RIRBUBASE",
734         .size     = 4,
735         .wmask    = 0xffffffff,
736         .offset   = offsetof(IntelHDAState, rirb_ubase),
737     },
738     [ ICH6_REG_RIRBWP ] = {
739         .name     = "RIRBWP",
740         .size     = 2,
741         .wmask    = 0x8000,
742         .offset   = offsetof(IntelHDAState, rirb_wp),
743         .whandler = intel_hda_set_rirb_wp,
744     },
745     [ ICH6_REG_RINTCNT ] = {
746         .name     = "RINTCNT",
747         .size     = 2,
748         .wmask    = 0xff,
749         .offset   = offsetof(IntelHDAState, rirb_cnt),
750     },
751     [ ICH6_REG_RIRBCTL ] = {
752         .name     = "RIRBCTL",
753         .size     = 1,
754         .wmask    = 0x07,
755         .offset   = offsetof(IntelHDAState, rirb_ctl),
756     },
757     [ ICH6_REG_RIRBSTS ] = {
758         .name     = "RIRBSTS",
759         .size     = 1,
760         .wmask    = 0x05,
761         .wclear   = 0x05,
762         .offset   = offsetof(IntelHDAState, rirb_sts),
763         .whandler = intel_hda_set_rirb_sts,
764     },
765     [ ICH6_REG_RIRBSIZE ] = {
766         .name     = "RIRBSIZE",
767         .size     = 1,
768         .reset    = 0x42,
769         .offset   = offsetof(IntelHDAState, rirb_size),
770     },
771 
772     [ ICH6_REG_DPLBASE ] = {
773         .name     = "DPLBASE",
774         .size     = 4,
775         .wmask    = 0xffffff81,
776         .offset   = offsetof(IntelHDAState, dp_lbase),
777     },
778     [ ICH6_REG_DPUBASE ] = {
779         .name     = "DPUBASE",
780         .size     = 4,
781         .wmask    = 0xffffffff,
782         .offset   = offsetof(IntelHDAState, dp_ubase),
783     },
784 
785     [ ICH6_REG_IC ] = {
786         .name     = "ICW",
787         .size     = 4,
788         .wmask    = 0xffffffff,
789         .offset   = offsetof(IntelHDAState, icw),
790     },
791     [ ICH6_REG_IR ] = {
792         .name     = "IRR",
793         .size     = 4,
794         .offset   = offsetof(IntelHDAState, irr),
795     },
796     [ ICH6_REG_IRS ] = {
797         .name     = "ICS",
798         .size     = 2,
799         .wmask    = 0x0003,
800         .wclear   = 0x0002,
801         .offset   = offsetof(IntelHDAState, ics),
802         .whandler = intel_hda_set_ics,
803     },
804 
805 #define HDA_STREAM(_t, _i)                                            \
806     [ ST_REG(_i, ICH6_REG_SD_CTL) ] = {                               \
807         .stream   = _i,                                               \
808         .name     = _t stringify(_i) " CTL",                          \
809         .size     = 4,                                                \
810         .wmask    = 0x1cff001f,                                       \
811         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
812         .whandler = intel_hda_set_st_ctl,                             \
813     },                                                                \
814     [ ST_REG(_i, ICH6_REG_SD_CTL) + 2] = {                            \
815         .stream   = _i,                                               \
816         .name     = _t stringify(_i) " CTL(stnr)",                    \
817         .size     = 1,                                                \
818         .shift    = 16,                                               \
819         .wmask    = 0x00ff0000,                                       \
820         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
821         .whandler = intel_hda_set_st_ctl,                             \
822     },                                                                \
823     [ ST_REG(_i, ICH6_REG_SD_STS)] = {                                \
824         .stream   = _i,                                               \
825         .name     = _t stringify(_i) " CTL(sts)",                     \
826         .size     = 1,                                                \
827         .shift    = 24,                                               \
828         .wmask    = 0x1c000000,                                       \
829         .wclear   = 0x1c000000,                                       \
830         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
831         .whandler = intel_hda_set_st_ctl,                             \
832         .reset    = SD_STS_FIFO_READY << 24                           \
833     },                                                                \
834     [ ST_REG(_i, ICH6_REG_SD_LPIB) ] = {                              \
835         .stream   = _i,                                               \
836         .name     = _t stringify(_i) " LPIB",                         \
837         .size     = 4,                                                \
838         .offset   = offsetof(IntelHDAState, st[_i].lpib),             \
839     },                                                                \
840     [ ST_REG(_i, ICH6_REG_SD_LPIB) + 0x2000 ] = {                     \
841         .stream   = _i,                                               \
842         .name     = _t stringify(_i) " LPIB(alias)",                  \
843         .size     = 4,                                                \
844         .offset   = offsetof(IntelHDAState, st[_i].lpib),             \
845     },                                                                \
846     [ ST_REG(_i, ICH6_REG_SD_CBL) ] = {                               \
847         .stream   = _i,                                               \
848         .name     = _t stringify(_i) " CBL",                          \
849         .size     = 4,                                                \
850         .wmask    = 0xffffffff,                                       \
851         .offset   = offsetof(IntelHDAState, st[_i].cbl),              \
852     },                                                                \
853     [ ST_REG(_i, ICH6_REG_SD_LVI) ] = {                               \
854         .stream   = _i,                                               \
855         .name     = _t stringify(_i) " LVI",                          \
856         .size     = 2,                                                \
857         .wmask    = 0x00ff,                                           \
858         .offset   = offsetof(IntelHDAState, st[_i].lvi),              \
859     },                                                                \
860     [ ST_REG(_i, ICH6_REG_SD_FIFOSIZE) ] = {                          \
861         .stream   = _i,                                               \
862         .name     = _t stringify(_i) " FIFOS",                        \
863         .size     = 2,                                                \
864         .reset    = HDA_BUFFER_SIZE,                                  \
865     },                                                                \
866     [ ST_REG(_i, ICH6_REG_SD_FORMAT) ] = {                            \
867         .stream   = _i,                                               \
868         .name     = _t stringify(_i) " FMT",                          \
869         .size     = 2,                                                \
870         .wmask    = 0x7f7f,                                           \
871         .offset   = offsetof(IntelHDAState, st[_i].fmt),              \
872     },                                                                \
873     [ ST_REG(_i, ICH6_REG_SD_BDLPL) ] = {                             \
874         .stream   = _i,                                               \
875         .name     = _t stringify(_i) " BDLPL",                        \
876         .size     = 4,                                                \
877         .wmask    = 0xffffff80,                                       \
878         .offset   = offsetof(IntelHDAState, st[_i].bdlp_lbase),       \
879     },                                                                \
880     [ ST_REG(_i, ICH6_REG_SD_BDLPU) ] = {                             \
881         .stream   = _i,                                               \
882         .name     = _t stringify(_i) " BDLPU",                        \
883         .size     = 4,                                                \
884         .wmask    = 0xffffffff,                                       \
885         .offset   = offsetof(IntelHDAState, st[_i].bdlp_ubase),       \
886     },                                                                \
887 
888     HDA_STREAM("IN", 0)
889     HDA_STREAM("IN", 1)
890     HDA_STREAM("IN", 2)
891     HDA_STREAM("IN", 3)
892 
893     HDA_STREAM("OUT", 4)
894     HDA_STREAM("OUT", 5)
895     HDA_STREAM("OUT", 6)
896     HDA_STREAM("OUT", 7)
897 
898 };
899 
900 static const IntelHDAReg *intel_hda_reg_find(IntelHDAState *d, hwaddr addr)
901 {
902     const IntelHDAReg *reg;
903 
904     if (addr >= ARRAY_SIZE(regtab)) {
905         goto noreg;
906     }
907     reg = regtab+addr;
908     if (reg->name == NULL) {
909         goto noreg;
910     }
911     return reg;
912 
913 noreg:
914     dprint(d, 1, "unknown register, addr 0x%x\n", (int) addr);
915     return NULL;
916 }
917 
918 static uint32_t *intel_hda_reg_addr(IntelHDAState *d, const IntelHDAReg *reg)
919 {
920     uint8_t *addr = (void*)d;
921 
922     addr += reg->offset;
923     return (uint32_t*)addr;
924 }
925 
926 static void intel_hda_reg_write(IntelHDAState *d, const IntelHDAReg *reg, uint32_t val,
927                                 uint32_t wmask)
928 {
929     uint32_t *addr;
930     uint32_t old;
931 
932     if (!reg) {
933         return;
934     }
935     if (!reg->wmask) {
936         qemu_log_mask(LOG_GUEST_ERROR, "intel-hda: write to r/o reg %s\n",
937                       reg->name);
938         return;
939     }
940 
941     if (d->debug) {
942         time_t now = time(NULL);
943         if (d->last_write && d->last_reg == reg && d->last_val == val) {
944             d->repeat_count++;
945             if (d->last_sec != now) {
946                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
947                 d->last_sec = now;
948                 d->repeat_count = 0;
949             }
950         } else {
951             if (d->repeat_count) {
952                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
953             }
954             dprint(d, 2, "write %-16s: 0x%x (%x)\n", reg->name, val, wmask);
955             d->last_write = 1;
956             d->last_reg   = reg;
957             d->last_val   = val;
958             d->last_sec   = now;
959             d->repeat_count = 0;
960         }
961     }
962     assert(reg->offset != 0);
963 
964     addr = intel_hda_reg_addr(d, reg);
965     old = *addr;
966 
967     if (reg->shift) {
968         val <<= reg->shift;
969         wmask <<= reg->shift;
970     }
971     wmask &= reg->wmask;
972     *addr &= ~wmask;
973     *addr |= wmask & val;
974     *addr &= ~(val & reg->wclear);
975 
976     if (reg->whandler) {
977         reg->whandler(d, reg, old);
978     }
979 }
980 
981 static uint32_t intel_hda_reg_read(IntelHDAState *d, const IntelHDAReg *reg,
982                                    uint32_t rmask)
983 {
984     uint32_t *addr, ret;
985 
986     if (!reg) {
987         return 0;
988     }
989 
990     if (reg->rhandler) {
991         reg->rhandler(d, reg);
992     }
993 
994     if (reg->offset == 0) {
995         /* constant read-only register */
996         ret = reg->reset;
997     } else {
998         addr = intel_hda_reg_addr(d, reg);
999         ret = *addr;
1000         if (reg->shift) {
1001             ret >>= reg->shift;
1002         }
1003         ret &= rmask;
1004     }
1005     if (d->debug) {
1006         time_t now = time(NULL);
1007         if (!d->last_write && d->last_reg == reg && d->last_val == ret) {
1008             d->repeat_count++;
1009             if (d->last_sec != now) {
1010                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1011                 d->last_sec = now;
1012                 d->repeat_count = 0;
1013             }
1014         } else {
1015             if (d->repeat_count) {
1016                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1017             }
1018             dprint(d, 2, "read  %-16s: 0x%x (%x)\n", reg->name, ret, rmask);
1019             d->last_write = 0;
1020             d->last_reg   = reg;
1021             d->last_val   = ret;
1022             d->last_sec   = now;
1023             d->repeat_count = 0;
1024         }
1025     }
1026     return ret;
1027 }
1028 
1029 static void intel_hda_regs_reset(IntelHDAState *d)
1030 {
1031     uint32_t *addr;
1032     int i;
1033 
1034     for (i = 0; i < ARRAY_SIZE(regtab); i++) {
1035         if (regtab[i].name == NULL) {
1036             continue;
1037         }
1038         if (regtab[i].offset == 0) {
1039             continue;
1040         }
1041         addr = intel_hda_reg_addr(d, regtab + i);
1042         *addr = regtab[i].reset;
1043     }
1044 }
1045 
1046 /* --------------------------------------------------------------------- */
1047 
1048 static void intel_hda_mmio_write(void *opaque, hwaddr addr, uint64_t val,
1049                                  unsigned size)
1050 {
1051     IntelHDAState *d = opaque;
1052     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1053 
1054     intel_hda_reg_write(d, reg, val, MAKE_64BIT_MASK(0, size * 8));
1055 }
1056 
1057 static uint64_t intel_hda_mmio_read(void *opaque, hwaddr addr, unsigned size)
1058 {
1059     IntelHDAState *d = opaque;
1060     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1061 
1062     return intel_hda_reg_read(d, reg, MAKE_64BIT_MASK(0, size * 8));
1063 }
1064 
1065 static const MemoryRegionOps intel_hda_mmio_ops = {
1066     .read = intel_hda_mmio_read,
1067     .write = intel_hda_mmio_write,
1068     .impl = {
1069         .min_access_size = 1,
1070         .max_access_size = 4,
1071     },
1072     .endianness = DEVICE_NATIVE_ENDIAN,
1073 };
1074 
1075 /* --------------------------------------------------------------------- */
1076 
1077 static void intel_hda_reset(DeviceState *dev)
1078 {
1079     BusChild *kid;
1080     IntelHDAState *d = INTEL_HDA(dev);
1081     HDACodecDevice *cdev;
1082 
1083     intel_hda_regs_reset(d);
1084     d->wall_base_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
1085 
1086     /* reset codecs */
1087     QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
1088         DeviceState *qdev = kid->child;
1089         cdev = HDA_CODEC_DEVICE(qdev);
1090         device_legacy_reset(DEVICE(cdev));
1091         d->state_sts |= (1 << cdev->cad);
1092     }
1093     intel_hda_update_irq(d);
1094 }
1095 
1096 static void intel_hda_realize(PCIDevice *pci, Error **errp)
1097 {
1098     IntelHDAState *d = INTEL_HDA(pci);
1099     uint8_t *conf = d->pci.config;
1100     Error *err = NULL;
1101     int ret;
1102 
1103     d->name = object_get_typename(OBJECT(d));
1104 
1105     pci_config_set_interrupt_pin(conf, 1);
1106 
1107     /* HDCTL off 0x40 bit 0 selects signaling mode (1-HDA, 0 - Ac97) 18.1.19 */
1108     conf[0x40] = 0x01;
1109 
1110     if (d->msi != ON_OFF_AUTO_OFF) {
1111         ret = msi_init(&d->pci, d->old_msi_addr ? 0x50 : 0x60,
1112                        1, true, false, &err);
1113         /* Any error other than -ENOTSUP(board's MSI support is broken)
1114          * is a programming error */
1115         assert(!ret || ret == -ENOTSUP);
1116         if (ret && d->msi == ON_OFF_AUTO_ON) {
1117             /* Can't satisfy user's explicit msi=on request, fail */
1118             error_append_hint(&err, "You have to use msi=auto (default) or "
1119                     "msi=off with this machine type.\n");
1120             error_propagate(errp, err);
1121             return;
1122         }
1123         assert(!err || d->msi == ON_OFF_AUTO_AUTO);
1124         /* With msi=auto, we fall back to MSI off silently */
1125         error_free(err);
1126     }
1127 
1128     memory_region_init_io(&d->mmio, OBJECT(d), &intel_hda_mmio_ops, d,
1129                           "intel-hda", 0x4000);
1130     pci_register_bar(&d->pci, 0, 0, &d->mmio);
1131 
1132     hda_codec_bus_init(DEVICE(pci), &d->codecs, sizeof(d->codecs),
1133                        intel_hda_response, intel_hda_xfer);
1134 }
1135 
1136 static void intel_hda_exit(PCIDevice *pci)
1137 {
1138     IntelHDAState *d = INTEL_HDA(pci);
1139 
1140     msi_uninit(&d->pci);
1141 }
1142 
1143 static int intel_hda_post_load(void *opaque, int version)
1144 {
1145     IntelHDAState* d = opaque;
1146     int i;
1147 
1148     dprint(d, 1, "%s\n", __func__);
1149     for (i = 0; i < ARRAY_SIZE(d->st); i++) {
1150         if (d->st[i].ctl & 0x02) {
1151             intel_hda_parse_bdl(d, &d->st[i]);
1152         }
1153     }
1154     intel_hda_update_irq(d);
1155     return 0;
1156 }
1157 
1158 static const VMStateDescription vmstate_intel_hda_stream = {
1159     .name = "intel-hda-stream",
1160     .version_id = 1,
1161     .fields = (VMStateField[]) {
1162         VMSTATE_UINT32(ctl, IntelHDAStream),
1163         VMSTATE_UINT32(lpib, IntelHDAStream),
1164         VMSTATE_UINT32(cbl, IntelHDAStream),
1165         VMSTATE_UINT32(lvi, IntelHDAStream),
1166         VMSTATE_UINT32(fmt, IntelHDAStream),
1167         VMSTATE_UINT32(bdlp_lbase, IntelHDAStream),
1168         VMSTATE_UINT32(bdlp_ubase, IntelHDAStream),
1169         VMSTATE_END_OF_LIST()
1170     }
1171 };
1172 
1173 static const VMStateDescription vmstate_intel_hda = {
1174     .name = "intel-hda",
1175     .version_id = 1,
1176     .post_load = intel_hda_post_load,
1177     .fields = (VMStateField[]) {
1178         VMSTATE_PCI_DEVICE(pci, IntelHDAState),
1179 
1180         /* registers */
1181         VMSTATE_UINT32(g_ctl, IntelHDAState),
1182         VMSTATE_UINT32(wake_en, IntelHDAState),
1183         VMSTATE_UINT32(state_sts, IntelHDAState),
1184         VMSTATE_UINT32(int_ctl, IntelHDAState),
1185         VMSTATE_UINT32(int_sts, IntelHDAState),
1186         VMSTATE_UINT32(wall_clk, IntelHDAState),
1187         VMSTATE_UINT32(corb_lbase, IntelHDAState),
1188         VMSTATE_UINT32(corb_ubase, IntelHDAState),
1189         VMSTATE_UINT32(corb_rp, IntelHDAState),
1190         VMSTATE_UINT32(corb_wp, IntelHDAState),
1191         VMSTATE_UINT32(corb_ctl, IntelHDAState),
1192         VMSTATE_UINT32(corb_sts, IntelHDAState),
1193         VMSTATE_UINT32(corb_size, IntelHDAState),
1194         VMSTATE_UINT32(rirb_lbase, IntelHDAState),
1195         VMSTATE_UINT32(rirb_ubase, IntelHDAState),
1196         VMSTATE_UINT32(rirb_wp, IntelHDAState),
1197         VMSTATE_UINT32(rirb_cnt, IntelHDAState),
1198         VMSTATE_UINT32(rirb_ctl, IntelHDAState),
1199         VMSTATE_UINT32(rirb_sts, IntelHDAState),
1200         VMSTATE_UINT32(rirb_size, IntelHDAState),
1201         VMSTATE_UINT32(dp_lbase, IntelHDAState),
1202         VMSTATE_UINT32(dp_ubase, IntelHDAState),
1203         VMSTATE_UINT32(icw, IntelHDAState),
1204         VMSTATE_UINT32(irr, IntelHDAState),
1205         VMSTATE_UINT32(ics, IntelHDAState),
1206         VMSTATE_STRUCT_ARRAY(st, IntelHDAState, 8, 0,
1207                              vmstate_intel_hda_stream,
1208                              IntelHDAStream),
1209 
1210         /* additional state info */
1211         VMSTATE_UINT32(rirb_count, IntelHDAState),
1212         VMSTATE_INT64(wall_base_ns, IntelHDAState),
1213 
1214         VMSTATE_END_OF_LIST()
1215     }
1216 };
1217 
1218 static Property intel_hda_properties[] = {
1219     DEFINE_PROP_UINT32("debug", IntelHDAState, debug, 0),
1220     DEFINE_PROP_ON_OFF_AUTO("msi", IntelHDAState, msi, ON_OFF_AUTO_AUTO),
1221     DEFINE_PROP_BOOL("old_msi_addr", IntelHDAState, old_msi_addr, false),
1222     DEFINE_PROP_END_OF_LIST(),
1223 };
1224 
1225 static void intel_hda_class_init(ObjectClass *klass, void *data)
1226 {
1227     DeviceClass *dc = DEVICE_CLASS(klass);
1228     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1229 
1230     k->realize = intel_hda_realize;
1231     k->exit = intel_hda_exit;
1232     k->vendor_id = PCI_VENDOR_ID_INTEL;
1233     k->class_id = PCI_CLASS_MULTIMEDIA_HD_AUDIO;
1234     dc->reset = intel_hda_reset;
1235     dc->vmsd = &vmstate_intel_hda;
1236     device_class_set_props(dc, intel_hda_properties);
1237 }
1238 
1239 static void intel_hda_class_init_ich6(ObjectClass *klass, void *data)
1240 {
1241     DeviceClass *dc = DEVICE_CLASS(klass);
1242     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1243 
1244     k->device_id = 0x2668;
1245     k->revision = 1;
1246     set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
1247     dc->desc = "Intel HD Audio Controller (ich6)";
1248 }
1249 
1250 static void intel_hda_class_init_ich9(ObjectClass *klass, void *data)
1251 {
1252     DeviceClass *dc = DEVICE_CLASS(klass);
1253     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1254 
1255     k->device_id = 0x293e;
1256     k->revision = 3;
1257     set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
1258     dc->desc = "Intel HD Audio Controller (ich9)";
1259 }
1260 
1261 static const TypeInfo intel_hda_info = {
1262     .name          = TYPE_INTEL_HDA_GENERIC,
1263     .parent        = TYPE_PCI_DEVICE,
1264     .instance_size = sizeof(IntelHDAState),
1265     .class_init    = intel_hda_class_init,
1266     .abstract      = true,
1267     .interfaces = (InterfaceInfo[]) {
1268         { INTERFACE_CONVENTIONAL_PCI_DEVICE },
1269         { },
1270     },
1271 };
1272 
1273 static const TypeInfo intel_hda_info_ich6 = {
1274     .name          = "intel-hda",
1275     .parent        = TYPE_INTEL_HDA_GENERIC,
1276     .class_init    = intel_hda_class_init_ich6,
1277 };
1278 
1279 static const TypeInfo intel_hda_info_ich9 = {
1280     .name          = "ich9-intel-hda",
1281     .parent        = TYPE_INTEL_HDA_GENERIC,
1282     .class_init    = intel_hda_class_init_ich9,
1283 };
1284 
1285 static void hda_codec_device_class_init(ObjectClass *klass, void *data)
1286 {
1287     DeviceClass *k = DEVICE_CLASS(klass);
1288     k->realize = hda_codec_dev_realize;
1289     k->unrealize = hda_codec_dev_unrealize;
1290     set_bit(DEVICE_CATEGORY_SOUND, k->categories);
1291     k->bus_type = TYPE_HDA_BUS;
1292     device_class_set_props(k, hda_props);
1293 }
1294 
1295 static const TypeInfo hda_codec_device_type_info = {
1296     .name = TYPE_HDA_CODEC_DEVICE,
1297     .parent = TYPE_DEVICE,
1298     .instance_size = sizeof(HDACodecDevice),
1299     .abstract = true,
1300     .class_size = sizeof(HDACodecDeviceClass),
1301     .class_init = hda_codec_device_class_init,
1302 };
1303 
1304 /*
1305  * create intel hda controller with codec attached to it,
1306  * so '-soundhw hda' works.
1307  */
1308 static int intel_hda_and_codec_init(PCIBus *bus)
1309 {
1310     DeviceState *controller;
1311     BusState *hdabus;
1312     DeviceState *codec;
1313 
1314     controller = DEVICE(pci_create_simple(bus, -1, "intel-hda"));
1315     hdabus = QLIST_FIRST(&controller->child_bus);
1316     codec = qdev_create(hdabus, "hda-duplex");
1317     qdev_init_nofail(codec);
1318     return 0;
1319 }
1320 
1321 static void intel_hda_register_types(void)
1322 {
1323     type_register_static(&hda_codec_bus_info);
1324     type_register_static(&intel_hda_info);
1325     type_register_static(&intel_hda_info_ich6);
1326     type_register_static(&intel_hda_info_ich9);
1327     type_register_static(&hda_codec_device_type_info);
1328     pci_register_soundhw("hda", "Intel HD Audio", intel_hda_and_codec_init);
1329 }
1330 
1331 type_init(intel_hda_register_types)
1332