xref: /openbmc/qemu/hw/audio/intel-hda.c (revision e1fe50dc)
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 "hw/hw.h"
21 #include "hw/pci/pci.h"
22 #include "hw/pci/msi.h"
23 #include "qemu/timer.h"
24 #include "hw/audio/audio.h"
25 #include "intel-hda.h"
26 #include "intel-hda-defs.h"
27 #include "sysemu/dma.h"
28 
29 /* --------------------------------------------------------------------- */
30 /* hda bus                                                               */
31 
32 static Property hda_props[] = {
33     DEFINE_PROP_UINT32("cad", HDACodecDevice, cad, -1),
34     DEFINE_PROP_END_OF_LIST()
35 };
36 
37 static const TypeInfo hda_codec_bus_info = {
38     .name = TYPE_HDA_BUS,
39     .parent = TYPE_BUS,
40     .instance_size = sizeof(HDACodecBus),
41 };
42 
43 void hda_codec_bus_init(DeviceState *dev, HDACodecBus *bus,
44                         hda_codec_response_func response,
45                         hda_codec_xfer_func xfer)
46 {
47     qbus_create_inplace(&bus->qbus, TYPE_HDA_BUS, dev, NULL);
48     bus->response = response;
49     bus->xfer = xfer;
50 }
51 
52 static int hda_codec_dev_init(DeviceState *qdev)
53 {
54     HDACodecBus *bus = DO_UPCAST(HDACodecBus, qbus, qdev->parent_bus);
55     HDACodecDevice *dev = DO_UPCAST(HDACodecDevice, qdev, qdev);
56     HDACodecDeviceClass *cdc = HDA_CODEC_DEVICE_GET_CLASS(dev);
57 
58     if (dev->cad == -1) {
59         dev->cad = bus->next_cad;
60     }
61     if (dev->cad >= 15) {
62         return -1;
63     }
64     bus->next_cad = dev->cad + 1;
65     return cdc->init(dev);
66 }
67 
68 static int hda_codec_dev_exit(DeviceState *qdev)
69 {
70     HDACodecDevice *dev = DO_UPCAST(HDACodecDevice, qdev, qdev);
71     HDACodecDeviceClass *cdc = HDA_CODEC_DEVICE_GET_CLASS(dev);
72 
73     if (cdc->exit) {
74         cdc->exit(dev);
75     }
76     return 0;
77 }
78 
79 HDACodecDevice *hda_codec_find(HDACodecBus *bus, uint32_t cad)
80 {
81     BusChild *kid;
82     HDACodecDevice *cdev;
83 
84     QTAILQ_FOREACH(kid, &bus->qbus.children, sibling) {
85         DeviceState *qdev = kid->child;
86         cdev = DO_UPCAST(HDACodecDevice, qdev, qdev);
87         if (cdev->cad == cad) {
88             return cdev;
89         }
90     }
91     return NULL;
92 }
93 
94 void hda_codec_response(HDACodecDevice *dev, bool solicited, uint32_t response)
95 {
96     HDACodecBus *bus = DO_UPCAST(HDACodecBus, qbus, dev->qdev.parent_bus);
97     bus->response(dev, solicited, response);
98 }
99 
100 bool hda_codec_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
101                     uint8_t *buf, uint32_t len)
102 {
103     HDACodecBus *bus = DO_UPCAST(HDACodecBus, qbus, dev->qdev.parent_bus);
104     return bus->xfer(dev, stnr, output, buf, len);
105 }
106 
107 /* --------------------------------------------------------------------- */
108 /* intel hda emulation                                                   */
109 
110 typedef struct IntelHDAStream IntelHDAStream;
111 typedef struct IntelHDAState IntelHDAState;
112 typedef struct IntelHDAReg IntelHDAReg;
113 
114 typedef struct bpl {
115     uint64_t addr;
116     uint32_t len;
117     uint32_t flags;
118 } bpl;
119 
120 struct IntelHDAStream {
121     /* registers */
122     uint32_t ctl;
123     uint32_t lpib;
124     uint32_t cbl;
125     uint32_t lvi;
126     uint32_t fmt;
127     uint32_t bdlp_lbase;
128     uint32_t bdlp_ubase;
129 
130     /* state */
131     bpl      *bpl;
132     uint32_t bentries;
133     uint32_t bsize, be, bp;
134 };
135 
136 struct IntelHDAState {
137     PCIDevice pci;
138     const char *name;
139     HDACodecBus codecs;
140 
141     /* registers */
142     uint32_t g_ctl;
143     uint32_t wake_en;
144     uint32_t state_sts;
145     uint32_t int_ctl;
146     uint32_t int_sts;
147     uint32_t wall_clk;
148 
149     uint32_t corb_lbase;
150     uint32_t corb_ubase;
151     uint32_t corb_rp;
152     uint32_t corb_wp;
153     uint32_t corb_ctl;
154     uint32_t corb_sts;
155     uint32_t corb_size;
156 
157     uint32_t rirb_lbase;
158     uint32_t rirb_ubase;
159     uint32_t rirb_wp;
160     uint32_t rirb_cnt;
161     uint32_t rirb_ctl;
162     uint32_t rirb_sts;
163     uint32_t rirb_size;
164 
165     uint32_t dp_lbase;
166     uint32_t dp_ubase;
167 
168     uint32_t icw;
169     uint32_t irr;
170     uint32_t ics;
171 
172     /* streams */
173     IntelHDAStream st[8];
174 
175     /* state */
176     MemoryRegion mmio;
177     uint32_t rirb_count;
178     int64_t wall_base_ns;
179 
180     /* debug logging */
181     const IntelHDAReg *last_reg;
182     uint32_t last_val;
183     uint32_t last_write;
184     uint32_t last_sec;
185     uint32_t repeat_count;
186 
187     /* properties */
188     uint32_t debug;
189     uint32_t msi;
190 };
191 
192 struct IntelHDAReg {
193     const char *name;      /* register name */
194     uint32_t   size;       /* size in bytes */
195     uint32_t   reset;      /* reset value */
196     uint32_t   wmask;      /* write mask */
197     uint32_t   wclear;     /* write 1 to clear bits */
198     uint32_t   offset;     /* location in IntelHDAState */
199     uint32_t   shift;      /* byte access entries for dwords */
200     uint32_t   stream;
201     void       (*whandler)(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old);
202     void       (*rhandler)(IntelHDAState *d, const IntelHDAReg *reg);
203 };
204 
205 static void intel_hda_reset(DeviceState *dev);
206 
207 /* --------------------------------------------------------------------- */
208 
209 static hwaddr intel_hda_addr(uint32_t lbase, uint32_t ubase)
210 {
211     hwaddr addr;
212 
213     addr = ((uint64_t)ubase << 32) | lbase;
214     return addr;
215 }
216 
217 static void intel_hda_update_int_sts(IntelHDAState *d)
218 {
219     uint32_t sts = 0;
220     uint32_t i;
221 
222     /* update controller status */
223     if (d->rirb_sts & ICH6_RBSTS_IRQ) {
224         sts |= (1 << 30);
225     }
226     if (d->rirb_sts & ICH6_RBSTS_OVERRUN) {
227         sts |= (1 << 30);
228     }
229     if (d->state_sts & d->wake_en) {
230         sts |= (1 << 30);
231     }
232 
233     /* update stream status */
234     for (i = 0; i < 8; i++) {
235         /* buffer completion interrupt */
236         if (d->st[i].ctl & (1 << 26)) {
237             sts |= (1 << i);
238         }
239     }
240 
241     /* update global status */
242     if (sts & d->int_ctl) {
243         sts |= (1 << 31);
244     }
245 
246     d->int_sts = sts;
247 }
248 
249 static void intel_hda_update_irq(IntelHDAState *d)
250 {
251     int msi = d->msi && msi_enabled(&d->pci);
252     int level;
253 
254     intel_hda_update_int_sts(d);
255     if (d->int_sts & (1 << 31) && d->int_ctl & (1 << 31)) {
256         level = 1;
257     } else {
258         level = 0;
259     }
260     dprint(d, 2, "%s: level %d [%s]\n", __FUNCTION__,
261            level, msi ? "msi" : "intx");
262     if (msi) {
263         if (level) {
264             msi_notify(&d->pci, 0);
265         }
266     } else {
267         qemu_set_irq(d->pci.irq[0], level);
268     }
269 }
270 
271 static int intel_hda_send_command(IntelHDAState *d, uint32_t verb)
272 {
273     uint32_t cad, nid, data;
274     HDACodecDevice *codec;
275     HDACodecDeviceClass *cdc;
276 
277     cad = (verb >> 28) & 0x0f;
278     if (verb & (1 << 27)) {
279         /* indirect node addressing, not specified in HDA 1.0 */
280         dprint(d, 1, "%s: indirect node addressing (guest bug?)\n", __FUNCTION__);
281         return -1;
282     }
283     nid = (verb >> 20) & 0x7f;
284     data = verb & 0xfffff;
285 
286     codec = hda_codec_find(&d->codecs, cad);
287     if (codec == NULL) {
288         dprint(d, 1, "%s: addressed non-existing codec\n", __FUNCTION__);
289         return -1;
290     }
291     cdc = HDA_CODEC_DEVICE_GET_CLASS(codec);
292     cdc->command(codec, nid, data);
293     return 0;
294 }
295 
296 static void intel_hda_corb_run(IntelHDAState *d)
297 {
298     hwaddr addr;
299     uint32_t rp, verb;
300 
301     if (d->ics & ICH6_IRS_BUSY) {
302         dprint(d, 2, "%s: [icw] verb 0x%08x\n", __FUNCTION__, d->icw);
303         intel_hda_send_command(d, d->icw);
304         return;
305     }
306 
307     for (;;) {
308         if (!(d->corb_ctl & ICH6_CORBCTL_RUN)) {
309             dprint(d, 2, "%s: !run\n", __FUNCTION__);
310             return;
311         }
312         if ((d->corb_rp & 0xff) == d->corb_wp) {
313             dprint(d, 2, "%s: corb ring empty\n", __FUNCTION__);
314             return;
315         }
316         if (d->rirb_count == d->rirb_cnt) {
317             dprint(d, 2, "%s: rirb count reached\n", __FUNCTION__);
318             return;
319         }
320 
321         rp = (d->corb_rp + 1) & 0xff;
322         addr = intel_hda_addr(d->corb_lbase, d->corb_ubase);
323         verb = ldl_le_pci_dma(&d->pci, addr + 4*rp);
324         d->corb_rp = rp;
325 
326         dprint(d, 2, "%s: [rp 0x%x] verb 0x%08x\n", __FUNCTION__, rp, verb);
327         intel_hda_send_command(d, verb);
328     }
329 }
330 
331 static void intel_hda_response(HDACodecDevice *dev, bool solicited, uint32_t response)
332 {
333     HDACodecBus *bus = DO_UPCAST(HDACodecBus, qbus, dev->qdev.parent_bus);
334     IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
335     hwaddr addr;
336     uint32_t wp, ex;
337 
338     if (d->ics & ICH6_IRS_BUSY) {
339         dprint(d, 2, "%s: [irr] response 0x%x, cad 0x%x\n",
340                __FUNCTION__, response, dev->cad);
341         d->irr = response;
342         d->ics &= ~(ICH6_IRS_BUSY | 0xf0);
343         d->ics |= (ICH6_IRS_VALID | (dev->cad << 4));
344         return;
345     }
346 
347     if (!(d->rirb_ctl & ICH6_RBCTL_DMA_EN)) {
348         dprint(d, 1, "%s: rirb dma disabled, drop codec response\n", __FUNCTION__);
349         return;
350     }
351 
352     ex = (solicited ? 0 : (1 << 4)) | dev->cad;
353     wp = (d->rirb_wp + 1) & 0xff;
354     addr = intel_hda_addr(d->rirb_lbase, d->rirb_ubase);
355     stl_le_pci_dma(&d->pci, addr + 8*wp, response);
356     stl_le_pci_dma(&d->pci, addr + 8*wp + 4, ex);
357     d->rirb_wp = wp;
358 
359     dprint(d, 2, "%s: [wp 0x%x] response 0x%x, extra 0x%x\n",
360            __FUNCTION__, wp, response, ex);
361 
362     d->rirb_count++;
363     if (d->rirb_count == d->rirb_cnt) {
364         dprint(d, 2, "%s: rirb count reached (%d)\n", __FUNCTION__, d->rirb_count);
365         if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
366             d->rirb_sts |= ICH6_RBSTS_IRQ;
367             intel_hda_update_irq(d);
368         }
369     } else if ((d->corb_rp & 0xff) == d->corb_wp) {
370         dprint(d, 2, "%s: corb ring empty (%d/%d)\n", __FUNCTION__,
371                d->rirb_count, d->rirb_cnt);
372         if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
373             d->rirb_sts |= ICH6_RBSTS_IRQ;
374             intel_hda_update_irq(d);
375         }
376     }
377 }
378 
379 static bool intel_hda_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
380                            uint8_t *buf, uint32_t len)
381 {
382     HDACodecBus *bus = DO_UPCAST(HDACodecBus, qbus, dev->qdev.parent_bus);
383     IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
384     hwaddr addr;
385     uint32_t s, copy, left;
386     IntelHDAStream *st;
387     bool irq = false;
388 
389     st = output ? d->st + 4 : d->st;
390     for (s = 0; s < 4; s++) {
391         if (stnr == ((st[s].ctl >> 20) & 0x0f)) {
392             st = st + s;
393             break;
394         }
395     }
396     if (s == 4) {
397         return false;
398     }
399     if (st->bpl == NULL) {
400         return false;
401     }
402     if (st->ctl & (1 << 26)) {
403         /*
404          * Wait with the next DMA xfer until the guest
405          * has acked the buffer completion interrupt
406          */
407         return false;
408     }
409 
410     left = len;
411     while (left > 0) {
412         copy = left;
413         if (copy > st->bsize - st->lpib)
414             copy = st->bsize - st->lpib;
415         if (copy > st->bpl[st->be].len - st->bp)
416             copy = st->bpl[st->be].len - st->bp;
417 
418         dprint(d, 3, "dma: entry %d, pos %d/%d, copy %d\n",
419                st->be, st->bp, st->bpl[st->be].len, copy);
420 
421         pci_dma_rw(&d->pci, st->bpl[st->be].addr + st->bp, buf, copy, !output);
422         st->lpib += copy;
423         st->bp += copy;
424         buf += copy;
425         left -= copy;
426 
427         if (st->bpl[st->be].len == st->bp) {
428             /* bpl entry filled */
429             if (st->bpl[st->be].flags & 0x01) {
430                 irq = true;
431             }
432             st->bp = 0;
433             st->be++;
434             if (st->be == st->bentries) {
435                 /* bpl wrap around */
436                 st->be = 0;
437                 st->lpib = 0;
438             }
439         }
440     }
441     if (d->dp_lbase & 0x01) {
442         addr = intel_hda_addr(d->dp_lbase & ~0x01, d->dp_ubase);
443         stl_le_pci_dma(&d->pci, addr + 8*s, st->lpib);
444     }
445     dprint(d, 3, "dma: --\n");
446 
447     if (irq) {
448         st->ctl |= (1 << 26); /* buffer completion interrupt */
449         intel_hda_update_irq(d);
450     }
451     return true;
452 }
453 
454 static void intel_hda_parse_bdl(IntelHDAState *d, IntelHDAStream *st)
455 {
456     hwaddr addr;
457     uint8_t buf[16];
458     uint32_t i;
459 
460     addr = intel_hda_addr(st->bdlp_lbase, st->bdlp_ubase);
461     st->bentries = st->lvi +1;
462     g_free(st->bpl);
463     st->bpl = g_malloc(sizeof(bpl) * st->bentries);
464     for (i = 0; i < st->bentries; i++, addr += 16) {
465         pci_dma_read(&d->pci, addr, buf, 16);
466         st->bpl[i].addr  = le64_to_cpu(*(uint64_t *)buf);
467         st->bpl[i].len   = le32_to_cpu(*(uint32_t *)(buf + 8));
468         st->bpl[i].flags = le32_to_cpu(*(uint32_t *)(buf + 12));
469         dprint(d, 1, "bdl/%d: 0x%" PRIx64 " +0x%x, 0x%x\n",
470                i, st->bpl[i].addr, st->bpl[i].len, st->bpl[i].flags);
471     }
472 
473     st->bsize = st->cbl;
474     st->lpib  = 0;
475     st->be    = 0;
476     st->bp    = 0;
477 }
478 
479 static void intel_hda_notify_codecs(IntelHDAState *d, uint32_t stream, bool running, bool output)
480 {
481     BusChild *kid;
482     HDACodecDevice *cdev;
483 
484     QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
485         DeviceState *qdev = kid->child;
486         HDACodecDeviceClass *cdc;
487 
488         cdev = DO_UPCAST(HDACodecDevice, qdev, qdev);
489         cdc = HDA_CODEC_DEVICE_GET_CLASS(cdev);
490         if (cdc->stream) {
491             cdc->stream(cdev, stream, running, output);
492         }
493     }
494 }
495 
496 /* --------------------------------------------------------------------- */
497 
498 static void intel_hda_set_g_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
499 {
500     if ((d->g_ctl & ICH6_GCTL_RESET) == 0) {
501         intel_hda_reset(&d->pci.qdev);
502     }
503 }
504 
505 static void intel_hda_set_wake_en(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
506 {
507     intel_hda_update_irq(d);
508 }
509 
510 static void intel_hda_set_state_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
511 {
512     intel_hda_update_irq(d);
513 }
514 
515 static void intel_hda_set_int_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
516 {
517     intel_hda_update_irq(d);
518 }
519 
520 static void intel_hda_get_wall_clk(IntelHDAState *d, const IntelHDAReg *reg)
521 {
522     int64_t ns;
523 
524     ns = qemu_get_clock_ns(vm_clock) - d->wall_base_ns;
525     d->wall_clk = (uint32_t)(ns * 24 / 1000);  /* 24 MHz */
526 }
527 
528 static void intel_hda_set_corb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
529 {
530     intel_hda_corb_run(d);
531 }
532 
533 static void intel_hda_set_corb_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
534 {
535     intel_hda_corb_run(d);
536 }
537 
538 static void intel_hda_set_rirb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
539 {
540     if (d->rirb_wp & ICH6_RIRBWP_RST) {
541         d->rirb_wp = 0;
542     }
543 }
544 
545 static void intel_hda_set_rirb_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
546 {
547     intel_hda_update_irq(d);
548 
549     if ((old & ICH6_RBSTS_IRQ) && !(d->rirb_sts & ICH6_RBSTS_IRQ)) {
550         /* cleared ICH6_RBSTS_IRQ */
551         d->rirb_count = 0;
552         intel_hda_corb_run(d);
553     }
554 }
555 
556 static void intel_hda_set_ics(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
557 {
558     if (d->ics & ICH6_IRS_BUSY) {
559         intel_hda_corb_run(d);
560     }
561 }
562 
563 static void intel_hda_set_st_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
564 {
565     bool output = reg->stream >= 4;
566     IntelHDAStream *st = d->st + reg->stream;
567 
568     if (st->ctl & 0x01) {
569         /* reset */
570         dprint(d, 1, "st #%d: reset\n", reg->stream);
571         st->ctl = 0;
572     }
573     if ((st->ctl & 0x02) != (old & 0x02)) {
574         uint32_t stnr = (st->ctl >> 20) & 0x0f;
575         /* run bit flipped */
576         if (st->ctl & 0x02) {
577             /* start */
578             dprint(d, 1, "st #%d: start %d (ring buf %d bytes)\n",
579                    reg->stream, stnr, st->cbl);
580             intel_hda_parse_bdl(d, st);
581             intel_hda_notify_codecs(d, stnr, true, output);
582         } else {
583             /* stop */
584             dprint(d, 1, "st #%d: stop %d\n", reg->stream, stnr);
585             intel_hda_notify_codecs(d, stnr, false, output);
586         }
587     }
588     intel_hda_update_irq(d);
589 }
590 
591 /* --------------------------------------------------------------------- */
592 
593 #define ST_REG(_n, _o) (0x80 + (_n) * 0x20 + (_o))
594 
595 static const struct IntelHDAReg regtab[] = {
596     /* global */
597     [ ICH6_REG_GCAP ] = {
598         .name     = "GCAP",
599         .size     = 2,
600         .reset    = 0x4401,
601     },
602     [ ICH6_REG_VMIN ] = {
603         .name     = "VMIN",
604         .size     = 1,
605     },
606     [ ICH6_REG_VMAJ ] = {
607         .name     = "VMAJ",
608         .size     = 1,
609         .reset    = 1,
610     },
611     [ ICH6_REG_OUTPAY ] = {
612         .name     = "OUTPAY",
613         .size     = 2,
614         .reset    = 0x3c,
615     },
616     [ ICH6_REG_INPAY ] = {
617         .name     = "INPAY",
618         .size     = 2,
619         .reset    = 0x1d,
620     },
621     [ ICH6_REG_GCTL ] = {
622         .name     = "GCTL",
623         .size     = 4,
624         .wmask    = 0x0103,
625         .offset   = offsetof(IntelHDAState, g_ctl),
626         .whandler = intel_hda_set_g_ctl,
627     },
628     [ ICH6_REG_WAKEEN ] = {
629         .name     = "WAKEEN",
630         .size     = 2,
631         .wmask    = 0x7fff,
632         .offset   = offsetof(IntelHDAState, wake_en),
633         .whandler = intel_hda_set_wake_en,
634     },
635     [ ICH6_REG_STATESTS ] = {
636         .name     = "STATESTS",
637         .size     = 2,
638         .wmask    = 0x7fff,
639         .wclear   = 0x7fff,
640         .offset   = offsetof(IntelHDAState, state_sts),
641         .whandler = intel_hda_set_state_sts,
642     },
643 
644     /* interrupts */
645     [ ICH6_REG_INTCTL ] = {
646         .name     = "INTCTL",
647         .size     = 4,
648         .wmask    = 0xc00000ff,
649         .offset   = offsetof(IntelHDAState, int_ctl),
650         .whandler = intel_hda_set_int_ctl,
651     },
652     [ ICH6_REG_INTSTS ] = {
653         .name     = "INTSTS",
654         .size     = 4,
655         .wmask    = 0xc00000ff,
656         .wclear   = 0xc00000ff,
657         .offset   = offsetof(IntelHDAState, int_sts),
658     },
659 
660     /* misc */
661     [ ICH6_REG_WALLCLK ] = {
662         .name     = "WALLCLK",
663         .size     = 4,
664         .offset   = offsetof(IntelHDAState, wall_clk),
665         .rhandler = intel_hda_get_wall_clk,
666     },
667     [ ICH6_REG_WALLCLK + 0x2000 ] = {
668         .name     = "WALLCLK(alias)",
669         .size     = 4,
670         .offset   = offsetof(IntelHDAState, wall_clk),
671         .rhandler = intel_hda_get_wall_clk,
672     },
673 
674     /* dma engine */
675     [ ICH6_REG_CORBLBASE ] = {
676         .name     = "CORBLBASE",
677         .size     = 4,
678         .wmask    = 0xffffff80,
679         .offset   = offsetof(IntelHDAState, corb_lbase),
680     },
681     [ ICH6_REG_CORBUBASE ] = {
682         .name     = "CORBUBASE",
683         .size     = 4,
684         .wmask    = 0xffffffff,
685         .offset   = offsetof(IntelHDAState, corb_ubase),
686     },
687     [ ICH6_REG_CORBWP ] = {
688         .name     = "CORBWP",
689         .size     = 2,
690         .wmask    = 0xff,
691         .offset   = offsetof(IntelHDAState, corb_wp),
692         .whandler = intel_hda_set_corb_wp,
693     },
694     [ ICH6_REG_CORBRP ] = {
695         .name     = "CORBRP",
696         .size     = 2,
697         .wmask    = 0x80ff,
698         .offset   = offsetof(IntelHDAState, corb_rp),
699     },
700     [ ICH6_REG_CORBCTL ] = {
701         .name     = "CORBCTL",
702         .size     = 1,
703         .wmask    = 0x03,
704         .offset   = offsetof(IntelHDAState, corb_ctl),
705         .whandler = intel_hda_set_corb_ctl,
706     },
707     [ ICH6_REG_CORBSTS ] = {
708         .name     = "CORBSTS",
709         .size     = 1,
710         .wmask    = 0x01,
711         .wclear   = 0x01,
712         .offset   = offsetof(IntelHDAState, corb_sts),
713     },
714     [ ICH6_REG_CORBSIZE ] = {
715         .name     = "CORBSIZE",
716         .size     = 1,
717         .reset    = 0x42,
718         .offset   = offsetof(IntelHDAState, corb_size),
719     },
720     [ ICH6_REG_RIRBLBASE ] = {
721         .name     = "RIRBLBASE",
722         .size     = 4,
723         .wmask    = 0xffffff80,
724         .offset   = offsetof(IntelHDAState, rirb_lbase),
725     },
726     [ ICH6_REG_RIRBUBASE ] = {
727         .name     = "RIRBUBASE",
728         .size     = 4,
729         .wmask    = 0xffffffff,
730         .offset   = offsetof(IntelHDAState, rirb_ubase),
731     },
732     [ ICH6_REG_RIRBWP ] = {
733         .name     = "RIRBWP",
734         .size     = 2,
735         .wmask    = 0x8000,
736         .offset   = offsetof(IntelHDAState, rirb_wp),
737         .whandler = intel_hda_set_rirb_wp,
738     },
739     [ ICH6_REG_RINTCNT ] = {
740         .name     = "RINTCNT",
741         .size     = 2,
742         .wmask    = 0xff,
743         .offset   = offsetof(IntelHDAState, rirb_cnt),
744     },
745     [ ICH6_REG_RIRBCTL ] = {
746         .name     = "RIRBCTL",
747         .size     = 1,
748         .wmask    = 0x07,
749         .offset   = offsetof(IntelHDAState, rirb_ctl),
750     },
751     [ ICH6_REG_RIRBSTS ] = {
752         .name     = "RIRBSTS",
753         .size     = 1,
754         .wmask    = 0x05,
755         .wclear   = 0x05,
756         .offset   = offsetof(IntelHDAState, rirb_sts),
757         .whandler = intel_hda_set_rirb_sts,
758     },
759     [ ICH6_REG_RIRBSIZE ] = {
760         .name     = "RIRBSIZE",
761         .size     = 1,
762         .reset    = 0x42,
763         .offset   = offsetof(IntelHDAState, rirb_size),
764     },
765 
766     [ ICH6_REG_DPLBASE ] = {
767         .name     = "DPLBASE",
768         .size     = 4,
769         .wmask    = 0xffffff81,
770         .offset   = offsetof(IntelHDAState, dp_lbase),
771     },
772     [ ICH6_REG_DPUBASE ] = {
773         .name     = "DPUBASE",
774         .size     = 4,
775         .wmask    = 0xffffffff,
776         .offset   = offsetof(IntelHDAState, dp_ubase),
777     },
778 
779     [ ICH6_REG_IC ] = {
780         .name     = "ICW",
781         .size     = 4,
782         .wmask    = 0xffffffff,
783         .offset   = offsetof(IntelHDAState, icw),
784     },
785     [ ICH6_REG_IR ] = {
786         .name     = "IRR",
787         .size     = 4,
788         .offset   = offsetof(IntelHDAState, irr),
789     },
790     [ ICH6_REG_IRS ] = {
791         .name     = "ICS",
792         .size     = 2,
793         .wmask    = 0x0003,
794         .wclear   = 0x0002,
795         .offset   = offsetof(IntelHDAState, ics),
796         .whandler = intel_hda_set_ics,
797     },
798 
799 #define HDA_STREAM(_t, _i)                                            \
800     [ ST_REG(_i, ICH6_REG_SD_CTL) ] = {                               \
801         .stream   = _i,                                               \
802         .name     = _t stringify(_i) " CTL",                          \
803         .size     = 4,                                                \
804         .wmask    = 0x1cff001f,                                       \
805         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
806         .whandler = intel_hda_set_st_ctl,                             \
807     },                                                                \
808     [ ST_REG(_i, ICH6_REG_SD_CTL) + 2] = {                            \
809         .stream   = _i,                                               \
810         .name     = _t stringify(_i) " CTL(stnr)",                    \
811         .size     = 1,                                                \
812         .shift    = 16,                                               \
813         .wmask    = 0x00ff0000,                                       \
814         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
815         .whandler = intel_hda_set_st_ctl,                             \
816     },                                                                \
817     [ ST_REG(_i, ICH6_REG_SD_STS)] = {                                \
818         .stream   = _i,                                               \
819         .name     = _t stringify(_i) " CTL(sts)",                     \
820         .size     = 1,                                                \
821         .shift    = 24,                                               \
822         .wmask    = 0x1c000000,                                       \
823         .wclear   = 0x1c000000,                                       \
824         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
825         .whandler = intel_hda_set_st_ctl,                             \
826     },                                                                \
827     [ ST_REG(_i, ICH6_REG_SD_LPIB) ] = {                              \
828         .stream   = _i,                                               \
829         .name     = _t stringify(_i) " LPIB",                         \
830         .size     = 4,                                                \
831         .offset   = offsetof(IntelHDAState, st[_i].lpib),             \
832     },                                                                \
833     [ ST_REG(_i, ICH6_REG_SD_LPIB) + 0x2000 ] = {                     \
834         .stream   = _i,                                               \
835         .name     = _t stringify(_i) " LPIB(alias)",                  \
836         .size     = 4,                                                \
837         .offset   = offsetof(IntelHDAState, st[_i].lpib),             \
838     },                                                                \
839     [ ST_REG(_i, ICH6_REG_SD_CBL) ] = {                               \
840         .stream   = _i,                                               \
841         .name     = _t stringify(_i) " CBL",                          \
842         .size     = 4,                                                \
843         .wmask    = 0xffffffff,                                       \
844         .offset   = offsetof(IntelHDAState, st[_i].cbl),              \
845     },                                                                \
846     [ ST_REG(_i, ICH6_REG_SD_LVI) ] = {                               \
847         .stream   = _i,                                               \
848         .name     = _t stringify(_i) " LVI",                          \
849         .size     = 2,                                                \
850         .wmask    = 0x00ff,                                           \
851         .offset   = offsetof(IntelHDAState, st[_i].lvi),              \
852     },                                                                \
853     [ ST_REG(_i, ICH6_REG_SD_FIFOSIZE) ] = {                          \
854         .stream   = _i,                                               \
855         .name     = _t stringify(_i) " FIFOS",                        \
856         .size     = 2,                                                \
857         .reset    = HDA_BUFFER_SIZE,                                  \
858     },                                                                \
859     [ ST_REG(_i, ICH6_REG_SD_FORMAT) ] = {                            \
860         .stream   = _i,                                               \
861         .name     = _t stringify(_i) " FMT",                          \
862         .size     = 2,                                                \
863         .wmask    = 0x7f7f,                                           \
864         .offset   = offsetof(IntelHDAState, st[_i].fmt),              \
865     },                                                                \
866     [ ST_REG(_i, ICH6_REG_SD_BDLPL) ] = {                             \
867         .stream   = _i,                                               \
868         .name     = _t stringify(_i) " BDLPL",                        \
869         .size     = 4,                                                \
870         .wmask    = 0xffffff80,                                       \
871         .offset   = offsetof(IntelHDAState, st[_i].bdlp_lbase),       \
872     },                                                                \
873     [ ST_REG(_i, ICH6_REG_SD_BDLPU) ] = {                             \
874         .stream   = _i,                                               \
875         .name     = _t stringify(_i) " BDLPU",                        \
876         .size     = 4,                                                \
877         .wmask    = 0xffffffff,                                       \
878         .offset   = offsetof(IntelHDAState, st[_i].bdlp_ubase),       \
879     },                                                                \
880 
881     HDA_STREAM("IN", 0)
882     HDA_STREAM("IN", 1)
883     HDA_STREAM("IN", 2)
884     HDA_STREAM("IN", 3)
885 
886     HDA_STREAM("OUT", 4)
887     HDA_STREAM("OUT", 5)
888     HDA_STREAM("OUT", 6)
889     HDA_STREAM("OUT", 7)
890 
891 };
892 
893 static const IntelHDAReg *intel_hda_reg_find(IntelHDAState *d, hwaddr addr)
894 {
895     const IntelHDAReg *reg;
896 
897     if (addr >= sizeof(regtab)/sizeof(regtab[0])) {
898         goto noreg;
899     }
900     reg = regtab+addr;
901     if (reg->name == NULL) {
902         goto noreg;
903     }
904     return reg;
905 
906 noreg:
907     dprint(d, 1, "unknown register, addr 0x%x\n", (int) addr);
908     return NULL;
909 }
910 
911 static uint32_t *intel_hda_reg_addr(IntelHDAState *d, const IntelHDAReg *reg)
912 {
913     uint8_t *addr = (void*)d;
914 
915     addr += reg->offset;
916     return (uint32_t*)addr;
917 }
918 
919 static void intel_hda_reg_write(IntelHDAState *d, const IntelHDAReg *reg, uint32_t val,
920                                 uint32_t wmask)
921 {
922     uint32_t *addr;
923     uint32_t old;
924 
925     if (!reg) {
926         return;
927     }
928 
929     if (d->debug) {
930         time_t now = time(NULL);
931         if (d->last_write && d->last_reg == reg && d->last_val == val) {
932             d->repeat_count++;
933             if (d->last_sec != now) {
934                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
935                 d->last_sec = now;
936                 d->repeat_count = 0;
937             }
938         } else {
939             if (d->repeat_count) {
940                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
941             }
942             dprint(d, 2, "write %-16s: 0x%x (%x)\n", reg->name, val, wmask);
943             d->last_write = 1;
944             d->last_reg   = reg;
945             d->last_val   = val;
946             d->last_sec   = now;
947             d->repeat_count = 0;
948         }
949     }
950     assert(reg->offset != 0);
951 
952     addr = intel_hda_reg_addr(d, reg);
953     old = *addr;
954 
955     if (reg->shift) {
956         val <<= reg->shift;
957         wmask <<= reg->shift;
958     }
959     wmask &= reg->wmask;
960     *addr &= ~wmask;
961     *addr |= wmask & val;
962     *addr &= ~(val & reg->wclear);
963 
964     if (reg->whandler) {
965         reg->whandler(d, reg, old);
966     }
967 }
968 
969 static uint32_t intel_hda_reg_read(IntelHDAState *d, const IntelHDAReg *reg,
970                                    uint32_t rmask)
971 {
972     uint32_t *addr, ret;
973 
974     if (!reg) {
975         return 0;
976     }
977 
978     if (reg->rhandler) {
979         reg->rhandler(d, reg);
980     }
981 
982     if (reg->offset == 0) {
983         /* constant read-only register */
984         ret = reg->reset;
985     } else {
986         addr = intel_hda_reg_addr(d, reg);
987         ret = *addr;
988         if (reg->shift) {
989             ret >>= reg->shift;
990         }
991         ret &= rmask;
992     }
993     if (d->debug) {
994         time_t now = time(NULL);
995         if (!d->last_write && d->last_reg == reg && d->last_val == ret) {
996             d->repeat_count++;
997             if (d->last_sec != now) {
998                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
999                 d->last_sec = now;
1000                 d->repeat_count = 0;
1001             }
1002         } else {
1003             if (d->repeat_count) {
1004                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1005             }
1006             dprint(d, 2, "read  %-16s: 0x%x (%x)\n", reg->name, ret, rmask);
1007             d->last_write = 0;
1008             d->last_reg   = reg;
1009             d->last_val   = ret;
1010             d->last_sec   = now;
1011             d->repeat_count = 0;
1012         }
1013     }
1014     return ret;
1015 }
1016 
1017 static void intel_hda_regs_reset(IntelHDAState *d)
1018 {
1019     uint32_t *addr;
1020     int i;
1021 
1022     for (i = 0; i < sizeof(regtab)/sizeof(regtab[0]); i++) {
1023         if (regtab[i].name == NULL) {
1024             continue;
1025         }
1026         if (regtab[i].offset == 0) {
1027             continue;
1028         }
1029         addr = intel_hda_reg_addr(d, regtab + i);
1030         *addr = regtab[i].reset;
1031     }
1032 }
1033 
1034 /* --------------------------------------------------------------------- */
1035 
1036 static void intel_hda_mmio_writeb(void *opaque, hwaddr addr, uint32_t val)
1037 {
1038     IntelHDAState *d = opaque;
1039     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1040 
1041     intel_hda_reg_write(d, reg, val, 0xff);
1042 }
1043 
1044 static void intel_hda_mmio_writew(void *opaque, hwaddr addr, uint32_t val)
1045 {
1046     IntelHDAState *d = opaque;
1047     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1048 
1049     intel_hda_reg_write(d, reg, val, 0xffff);
1050 }
1051 
1052 static void intel_hda_mmio_writel(void *opaque, hwaddr addr, uint32_t val)
1053 {
1054     IntelHDAState *d = opaque;
1055     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1056 
1057     intel_hda_reg_write(d, reg, val, 0xffffffff);
1058 }
1059 
1060 static uint32_t intel_hda_mmio_readb(void *opaque, hwaddr addr)
1061 {
1062     IntelHDAState *d = opaque;
1063     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1064 
1065     return intel_hda_reg_read(d, reg, 0xff);
1066 }
1067 
1068 static uint32_t intel_hda_mmio_readw(void *opaque, hwaddr addr)
1069 {
1070     IntelHDAState *d = opaque;
1071     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1072 
1073     return intel_hda_reg_read(d, reg, 0xffff);
1074 }
1075 
1076 static uint32_t intel_hda_mmio_readl(void *opaque, hwaddr addr)
1077 {
1078     IntelHDAState *d = opaque;
1079     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1080 
1081     return intel_hda_reg_read(d, reg, 0xffffffff);
1082 }
1083 
1084 static const MemoryRegionOps intel_hda_mmio_ops = {
1085     .old_mmio = {
1086         .read = {
1087             intel_hda_mmio_readb,
1088             intel_hda_mmio_readw,
1089             intel_hda_mmio_readl,
1090         },
1091         .write = {
1092             intel_hda_mmio_writeb,
1093             intel_hda_mmio_writew,
1094             intel_hda_mmio_writel,
1095         },
1096     },
1097     .endianness = DEVICE_NATIVE_ENDIAN,
1098 };
1099 
1100 /* --------------------------------------------------------------------- */
1101 
1102 static void intel_hda_reset(DeviceState *dev)
1103 {
1104     BusChild *kid;
1105     IntelHDAState *d = DO_UPCAST(IntelHDAState, pci.qdev, dev);
1106     HDACodecDevice *cdev;
1107 
1108     intel_hda_regs_reset(d);
1109     d->wall_base_ns = qemu_get_clock_ns(vm_clock);
1110 
1111     /* reset codecs */
1112     QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
1113         DeviceState *qdev = kid->child;
1114         cdev = DO_UPCAST(HDACodecDevice, qdev, qdev);
1115         device_reset(DEVICE(cdev));
1116         d->state_sts |= (1 << cdev->cad);
1117     }
1118     intel_hda_update_irq(d);
1119 }
1120 
1121 static int intel_hda_init(PCIDevice *pci)
1122 {
1123     IntelHDAState *d = DO_UPCAST(IntelHDAState, pci, pci);
1124     uint8_t *conf = d->pci.config;
1125 
1126     d->name = object_get_typename(OBJECT(d));
1127 
1128     pci_config_set_interrupt_pin(conf, 1);
1129 
1130     /* HDCTL off 0x40 bit 0 selects signaling mode (1-HDA, 0 - Ac97) 18.1.19 */
1131     conf[0x40] = 0x01;
1132 
1133     memory_region_init_io(&d->mmio, &intel_hda_mmio_ops, d,
1134                           "intel-hda", 0x4000);
1135     pci_register_bar(&d->pci, 0, 0, &d->mmio);
1136     if (d->msi) {
1137         msi_init(&d->pci, 0x50, 1, true, false);
1138     }
1139 
1140     hda_codec_bus_init(&d->pci.qdev, &d->codecs,
1141                        intel_hda_response, intel_hda_xfer);
1142 
1143     return 0;
1144 }
1145 
1146 static void intel_hda_exit(PCIDevice *pci)
1147 {
1148     IntelHDAState *d = DO_UPCAST(IntelHDAState, pci, pci);
1149 
1150     msi_uninit(&d->pci);
1151     memory_region_destroy(&d->mmio);
1152 }
1153 
1154 static int intel_hda_post_load(void *opaque, int version)
1155 {
1156     IntelHDAState* d = opaque;
1157     int i;
1158 
1159     dprint(d, 1, "%s\n", __FUNCTION__);
1160     for (i = 0; i < ARRAY_SIZE(d->st); i++) {
1161         if (d->st[i].ctl & 0x02) {
1162             intel_hda_parse_bdl(d, &d->st[i]);
1163         }
1164     }
1165     intel_hda_update_irq(d);
1166     return 0;
1167 }
1168 
1169 static const VMStateDescription vmstate_intel_hda_stream = {
1170     .name = "intel-hda-stream",
1171     .version_id = 1,
1172     .fields = (VMStateField []) {
1173         VMSTATE_UINT32(ctl, IntelHDAStream),
1174         VMSTATE_UINT32(lpib, IntelHDAStream),
1175         VMSTATE_UINT32(cbl, IntelHDAStream),
1176         VMSTATE_UINT32(lvi, IntelHDAStream),
1177         VMSTATE_UINT32(fmt, IntelHDAStream),
1178         VMSTATE_UINT32(bdlp_lbase, IntelHDAStream),
1179         VMSTATE_UINT32(bdlp_ubase, IntelHDAStream),
1180         VMSTATE_END_OF_LIST()
1181     }
1182 };
1183 
1184 static const VMStateDescription vmstate_intel_hda = {
1185     .name = "intel-hda",
1186     .version_id = 1,
1187     .post_load = intel_hda_post_load,
1188     .fields = (VMStateField []) {
1189         VMSTATE_PCI_DEVICE(pci, IntelHDAState),
1190 
1191         /* registers */
1192         VMSTATE_UINT32(g_ctl, IntelHDAState),
1193         VMSTATE_UINT32(wake_en, IntelHDAState),
1194         VMSTATE_UINT32(state_sts, IntelHDAState),
1195         VMSTATE_UINT32(int_ctl, IntelHDAState),
1196         VMSTATE_UINT32(int_sts, IntelHDAState),
1197         VMSTATE_UINT32(wall_clk, IntelHDAState),
1198         VMSTATE_UINT32(corb_lbase, IntelHDAState),
1199         VMSTATE_UINT32(corb_ubase, IntelHDAState),
1200         VMSTATE_UINT32(corb_rp, IntelHDAState),
1201         VMSTATE_UINT32(corb_wp, IntelHDAState),
1202         VMSTATE_UINT32(corb_ctl, IntelHDAState),
1203         VMSTATE_UINT32(corb_sts, IntelHDAState),
1204         VMSTATE_UINT32(corb_size, IntelHDAState),
1205         VMSTATE_UINT32(rirb_lbase, IntelHDAState),
1206         VMSTATE_UINT32(rirb_ubase, IntelHDAState),
1207         VMSTATE_UINT32(rirb_wp, IntelHDAState),
1208         VMSTATE_UINT32(rirb_cnt, IntelHDAState),
1209         VMSTATE_UINT32(rirb_ctl, IntelHDAState),
1210         VMSTATE_UINT32(rirb_sts, IntelHDAState),
1211         VMSTATE_UINT32(rirb_size, IntelHDAState),
1212         VMSTATE_UINT32(dp_lbase, IntelHDAState),
1213         VMSTATE_UINT32(dp_ubase, IntelHDAState),
1214         VMSTATE_UINT32(icw, IntelHDAState),
1215         VMSTATE_UINT32(irr, IntelHDAState),
1216         VMSTATE_UINT32(ics, IntelHDAState),
1217         VMSTATE_STRUCT_ARRAY(st, IntelHDAState, 8, 0,
1218                              vmstate_intel_hda_stream,
1219                              IntelHDAStream),
1220 
1221         /* additional state info */
1222         VMSTATE_UINT32(rirb_count, IntelHDAState),
1223         VMSTATE_INT64(wall_base_ns, IntelHDAState),
1224 
1225         VMSTATE_END_OF_LIST()
1226     }
1227 };
1228 
1229 static Property intel_hda_properties[] = {
1230     DEFINE_PROP_UINT32("debug", IntelHDAState, debug, 0),
1231     DEFINE_PROP_UINT32("msi", IntelHDAState, msi, 1),
1232     DEFINE_PROP_END_OF_LIST(),
1233 };
1234 
1235 static void intel_hda_class_init_common(ObjectClass *klass)
1236 {
1237     DeviceClass *dc = DEVICE_CLASS(klass);
1238     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1239 
1240     k->init = intel_hda_init;
1241     k->exit = intel_hda_exit;
1242     k->vendor_id = PCI_VENDOR_ID_INTEL;
1243     k->class_id = PCI_CLASS_MULTIMEDIA_HD_AUDIO;
1244     dc->reset = intel_hda_reset;
1245     dc->vmsd = &vmstate_intel_hda;
1246     dc->props = intel_hda_properties;
1247 }
1248 
1249 static void intel_hda_class_init_ich6(ObjectClass *klass, void *data)
1250 {
1251     DeviceClass *dc = DEVICE_CLASS(klass);
1252     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1253 
1254     intel_hda_class_init_common(klass);
1255     k->device_id = 0x2668;
1256     k->revision = 1;
1257     dc->desc = "Intel HD Audio Controller (ich6)";
1258 }
1259 
1260 static void intel_hda_class_init_ich9(ObjectClass *klass, void *data)
1261 {
1262     DeviceClass *dc = DEVICE_CLASS(klass);
1263     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1264 
1265     intel_hda_class_init_common(klass);
1266     k->device_id = 0x293e;
1267     k->revision = 3;
1268     dc->desc = "Intel HD Audio Controller (ich9)";
1269 }
1270 
1271 static const TypeInfo intel_hda_info_ich6 = {
1272     .name          = "intel-hda",
1273     .parent        = TYPE_PCI_DEVICE,
1274     .instance_size = sizeof(IntelHDAState),
1275     .class_init    = intel_hda_class_init_ich6,
1276 };
1277 
1278 static const TypeInfo intel_hda_info_ich9 = {
1279     .name          = "ich9-intel-hda",
1280     .parent        = TYPE_PCI_DEVICE,
1281     .instance_size = sizeof(IntelHDAState),
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->init = hda_codec_dev_init;
1289     k->exit = hda_codec_dev_exit;
1290     k->bus_type = TYPE_HDA_BUS;
1291     k->props = hda_props;
1292 }
1293 
1294 static const TypeInfo hda_codec_device_type_info = {
1295     .name = TYPE_HDA_CODEC_DEVICE,
1296     .parent = TYPE_DEVICE,
1297     .instance_size = sizeof(HDACodecDevice),
1298     .abstract = true,
1299     .class_size = sizeof(HDACodecDeviceClass),
1300     .class_init = hda_codec_device_class_init,
1301 };
1302 
1303 static void intel_hda_register_types(void)
1304 {
1305     type_register_static(&hda_codec_bus_info);
1306     type_register_static(&intel_hda_info_ich6);
1307     type_register_static(&intel_hda_info_ich9);
1308     type_register_static(&hda_codec_device_type_info);
1309 }
1310 
1311 type_init(intel_hda_register_types)
1312 
1313 /*
1314  * create intel hda controller with codec attached to it,
1315  * so '-soundhw hda' works.
1316  */
1317 int intel_hda_and_codec_init(PCIBus *bus)
1318 {
1319     PCIDevice *controller;
1320     BusState *hdabus;
1321     DeviceState *codec;
1322 
1323     controller = pci_create_simple(bus, -1, "intel-hda");
1324     hdabus = QLIST_FIRST(&controller->qdev.child_bus);
1325     codec = qdev_create(hdabus, "hda-duplex");
1326     qdev_init_nofail(codec);
1327     return 0;
1328 }
1329 
1330