xref: /openbmc/qemu/hw/audio/intel-hda.c (revision 2a8af382)
1 /*
2  * Copyright (C) 2010 Red Hat, Inc.
3  *
4  * written by Gerd Hoffmann <kraxel@redhat.com>
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License as
8  * published by the Free Software Foundation; either version 2 or
9  * (at your option) version 3 of the License.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #include "qemu/osdep.h"
21 #include "hw/pci/pci.h"
22 #include "hw/qdev-properties.h"
23 #include "hw/pci/msi.h"
24 #include "qemu/timer.h"
25 #include "qemu/bitops.h"
26 #include "qemu/log.h"
27 #include "qemu/module.h"
28 #include "qemu/error-report.h"
29 #include "hw/audio/soundhw.h"
30 #include "intel-hda.h"
31 #include "migration/vmstate.h"
32 #include "intel-hda-defs.h"
33 #include "sysemu/dma.h"
34 #include "qapi/error.h"
35 #include "qom/object.h"
36 
37 /* --------------------------------------------------------------------- */
38 /* hda bus                                                               */
39 
40 static Property hda_props[] = {
41     DEFINE_PROP_UINT32("cad", HDACodecDevice, cad, -1),
42     DEFINE_PROP_END_OF_LIST()
43 };
44 
45 static const TypeInfo hda_codec_bus_info = {
46     .name = TYPE_HDA_BUS,
47     .parent = TYPE_BUS,
48     .instance_size = sizeof(HDACodecBus),
49 };
50 
51 void hda_codec_bus_init(DeviceState *dev, HDACodecBus *bus, size_t bus_size,
52                         hda_codec_response_func response,
53                         hda_codec_xfer_func xfer)
54 {
55     qbus_init(bus, bus_size, TYPE_HDA_BUS, dev, NULL);
56     bus->response = response;
57     bus->xfer = xfer;
58 }
59 
60 static void hda_codec_dev_realize(DeviceState *qdev, Error **errp)
61 {
62     HDACodecBus *bus = HDA_BUS(qdev->parent_bus);
63     HDACodecDevice *dev = HDA_CODEC_DEVICE(qdev);
64     HDACodecDeviceClass *cdc = HDA_CODEC_DEVICE_GET_CLASS(dev);
65 
66     if (dev->cad == -1) {
67         dev->cad = bus->next_cad;
68     }
69     if (dev->cad >= 15) {
70         error_setg(errp, "HDA audio codec address is full");
71         return;
72     }
73     bus->next_cad = dev->cad + 1;
74     if (cdc->init(dev) != 0) {
75         error_setg(errp, "HDA audio init failed");
76     }
77 }
78 
79 static void hda_codec_dev_unrealize(DeviceState *qdev)
80 {
81     HDACodecDevice *dev = HDA_CODEC_DEVICE(qdev);
82     HDACodecDeviceClass *cdc = HDA_CODEC_DEVICE_GET_CLASS(dev);
83 
84     if (cdc->exit) {
85         cdc->exit(dev);
86     }
87 }
88 
89 HDACodecDevice *hda_codec_find(HDACodecBus *bus, uint32_t cad)
90 {
91     BusChild *kid;
92     HDACodecDevice *cdev;
93 
94     QTAILQ_FOREACH(kid, &bus->qbus.children, sibling) {
95         DeviceState *qdev = kid->child;
96         cdev = HDA_CODEC_DEVICE(qdev);
97         if (cdev->cad == cad) {
98             return cdev;
99         }
100     }
101     return NULL;
102 }
103 
104 void hda_codec_response(HDACodecDevice *dev, bool solicited, uint32_t response)
105 {
106     HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
107     bus->response(dev, solicited, response);
108 }
109 
110 bool hda_codec_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
111                     uint8_t *buf, uint32_t len)
112 {
113     HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
114     return bus->xfer(dev, stnr, output, buf, len);
115 }
116 
117 /* --------------------------------------------------------------------- */
118 /* intel hda emulation                                                   */
119 
120 typedef struct IntelHDAStream IntelHDAStream;
121 typedef struct IntelHDAState IntelHDAState;
122 typedef struct IntelHDAReg IntelHDAReg;
123 
124 typedef struct bpl {
125     uint64_t addr;
126     uint32_t len;
127     uint32_t flags;
128 } bpl;
129 
130 struct IntelHDAStream {
131     /* registers */
132     uint32_t ctl;
133     uint32_t lpib;
134     uint32_t cbl;
135     uint32_t lvi;
136     uint32_t fmt;
137     uint32_t bdlp_lbase;
138     uint32_t bdlp_ubase;
139 
140     /* state */
141     bpl      *bpl;
142     uint32_t bentries;
143     uint32_t bsize, be, bp;
144 };
145 
146 struct IntelHDAState {
147     PCIDevice pci;
148     const char *name;
149     HDACodecBus codecs;
150 
151     /* registers */
152     uint32_t g_ctl;
153     uint32_t wake_en;
154     uint32_t state_sts;
155     uint32_t int_ctl;
156     uint32_t int_sts;
157     uint32_t wall_clk;
158 
159     uint32_t corb_lbase;
160     uint32_t corb_ubase;
161     uint32_t corb_rp;
162     uint32_t corb_wp;
163     uint32_t corb_ctl;
164     uint32_t corb_sts;
165     uint32_t corb_size;
166 
167     uint32_t rirb_lbase;
168     uint32_t rirb_ubase;
169     uint32_t rirb_wp;
170     uint32_t rirb_cnt;
171     uint32_t rirb_ctl;
172     uint32_t rirb_sts;
173     uint32_t rirb_size;
174 
175     uint32_t dp_lbase;
176     uint32_t dp_ubase;
177 
178     uint32_t icw;
179     uint32_t irr;
180     uint32_t ics;
181 
182     /* streams */
183     IntelHDAStream st[8];
184 
185     /* state */
186     MemoryRegion container;
187     MemoryRegion mmio;
188     MemoryRegion alias;
189     uint32_t rirb_count;
190     int64_t wall_base_ns;
191 
192     /* debug logging */
193     const IntelHDAReg *last_reg;
194     uint32_t last_val;
195     uint32_t last_write;
196     uint32_t last_sec;
197     uint32_t repeat_count;
198 
199     /* properties */
200     uint32_t debug;
201     OnOffAuto msi;
202     bool old_msi_addr;
203 };
204 
205 #define TYPE_INTEL_HDA_GENERIC "intel-hda-generic"
206 
207 DECLARE_INSTANCE_CHECKER(IntelHDAState, INTEL_HDA,
208                          TYPE_INTEL_HDA_GENERIC)
209 
210 struct IntelHDAReg {
211     const char *name;      /* register name */
212     uint32_t   size;       /* size in bytes */
213     uint32_t   reset;      /* reset value */
214     uint32_t   wmask;      /* write mask */
215     uint32_t   wclear;     /* write 1 to clear bits */
216     uint32_t   offset;     /* location in IntelHDAState */
217     uint32_t   shift;      /* byte access entries for dwords */
218     uint32_t   stream;
219     void       (*whandler)(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old);
220     void       (*rhandler)(IntelHDAState *d, const IntelHDAReg *reg);
221 };
222 
223 /* --------------------------------------------------------------------- */
224 
225 static hwaddr intel_hda_addr(uint32_t lbase, uint32_t ubase)
226 {
227     return ((uint64_t)ubase << 32) | lbase;
228 }
229 
230 static void intel_hda_update_int_sts(IntelHDAState *d)
231 {
232     uint32_t sts = 0;
233     uint32_t i;
234 
235     /* update controller status */
236     if (d->rirb_sts & ICH6_RBSTS_IRQ) {
237         sts |= (1 << 30);
238     }
239     if (d->rirb_sts & ICH6_RBSTS_OVERRUN) {
240         sts |= (1 << 30);
241     }
242     if (d->state_sts & d->wake_en) {
243         sts |= (1 << 30);
244     }
245 
246     /* update stream status */
247     for (i = 0; i < 8; i++) {
248         /* buffer completion interrupt */
249         if (d->st[i].ctl & (1 << 26)) {
250             sts |= (1 << i);
251         }
252     }
253 
254     /* update global status */
255     if (sts & d->int_ctl) {
256         sts |= (1U << 31);
257     }
258 
259     d->int_sts = sts;
260 }
261 
262 static void intel_hda_update_irq(IntelHDAState *d)
263 {
264     bool msi = msi_enabled(&d->pci);
265     int level;
266 
267     intel_hda_update_int_sts(d);
268     if (d->int_sts & (1U << 31) && d->int_ctl & (1U << 31)) {
269         level = 1;
270     } else {
271         level = 0;
272     }
273     dprint(d, 2, "%s: level %d [%s]\n", __func__,
274            level, msi ? "msi" : "intx");
275     if (msi) {
276         if (level) {
277             msi_notify(&d->pci, 0);
278         }
279     } else {
280         pci_set_irq(&d->pci, level);
281     }
282 }
283 
284 static int intel_hda_send_command(IntelHDAState *d, uint32_t verb)
285 {
286     uint32_t cad, nid, data;
287     HDACodecDevice *codec;
288     HDACodecDeviceClass *cdc;
289 
290     cad = (verb >> 28) & 0x0f;
291     if (verb & (1 << 27)) {
292         /* indirect node addressing, not specified in HDA 1.0 */
293         dprint(d, 1, "%s: indirect node addressing (guest bug?)\n", __func__);
294         return -1;
295     }
296     nid = (verb >> 20) & 0x7f;
297     data = verb & 0xfffff;
298 
299     codec = hda_codec_find(&d->codecs, cad);
300     if (codec == NULL) {
301         dprint(d, 1, "%s: addressed non-existing codec\n", __func__);
302         return -1;
303     }
304     cdc = HDA_CODEC_DEVICE_GET_CLASS(codec);
305     cdc->command(codec, nid, data);
306     return 0;
307 }
308 
309 static void intel_hda_corb_run(IntelHDAState *d)
310 {
311     hwaddr addr;
312     uint32_t rp, verb;
313 
314     if (d->ics & ICH6_IRS_BUSY) {
315         dprint(d, 2, "%s: [icw] verb 0x%08x\n", __func__, d->icw);
316         intel_hda_send_command(d, d->icw);
317         return;
318     }
319 
320     for (;;) {
321         if (!(d->corb_ctl & ICH6_CORBCTL_RUN)) {
322             dprint(d, 2, "%s: !run\n", __func__);
323             return;
324         }
325         if ((d->corb_rp & 0xff) == d->corb_wp) {
326             dprint(d, 2, "%s: corb ring empty\n", __func__);
327             return;
328         }
329         if (d->rirb_count == d->rirb_cnt) {
330             dprint(d, 2, "%s: rirb count reached\n", __func__);
331             return;
332         }
333 
334         rp = (d->corb_rp + 1) & 0xff;
335         addr = intel_hda_addr(d->corb_lbase, d->corb_ubase);
336         ldl_le_pci_dma(&d->pci, addr + 4 * rp, &verb, MEMTXATTRS_UNSPECIFIED);
337         d->corb_rp = rp;
338 
339         dprint(d, 2, "%s: [rp 0x%x] verb 0x%08x\n", __func__, rp, verb);
340         intel_hda_send_command(d, verb);
341     }
342 }
343 
344 static void intel_hda_response(HDACodecDevice *dev, bool solicited, uint32_t response)
345 {
346     const MemTxAttrs attrs = { .memory = true };
347     HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
348     IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
349     hwaddr addr;
350     uint32_t wp, ex;
351     MemTxResult res = MEMTX_OK;
352 
353     if (d->ics & ICH6_IRS_BUSY) {
354         dprint(d, 2, "%s: [irr] response 0x%x, cad 0x%x\n",
355                __func__, response, dev->cad);
356         d->irr = response;
357         d->ics &= ~(ICH6_IRS_BUSY | 0xf0);
358         d->ics |= (ICH6_IRS_VALID | (dev->cad << 4));
359         return;
360     }
361 
362     if (!(d->rirb_ctl & ICH6_RBCTL_DMA_EN)) {
363         dprint(d, 1, "%s: rirb dma disabled, drop codec response\n", __func__);
364         return;
365     }
366 
367     ex = (solicited ? 0 : (1 << 4)) | dev->cad;
368     wp = (d->rirb_wp + 1) & 0xff;
369     addr = intel_hda_addr(d->rirb_lbase, d->rirb_ubase);
370     res |= stl_le_pci_dma(&d->pci, addr + 8 * wp, response, attrs);
371     res |= stl_le_pci_dma(&d->pci, addr + 8 * wp + 4, ex, attrs);
372     if (res != MEMTX_OK && (d->rirb_ctl & ICH6_RBCTL_OVERRUN_EN)) {
373         d->rirb_sts |= ICH6_RBSTS_OVERRUN;
374         intel_hda_update_irq(d);
375     }
376     d->rirb_wp = wp;
377 
378     dprint(d, 2, "%s: [wp 0x%x] response 0x%x, extra 0x%x\n",
379            __func__, wp, response, ex);
380 
381     d->rirb_count++;
382     if (d->rirb_count == d->rirb_cnt) {
383         dprint(d, 2, "%s: rirb count reached (%d)\n", __func__, d->rirb_count);
384         if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
385             d->rirb_sts |= ICH6_RBSTS_IRQ;
386             intel_hda_update_irq(d);
387         }
388     } else if ((d->corb_rp & 0xff) == d->corb_wp) {
389         dprint(d, 2, "%s: corb ring empty (%d/%d)\n", __func__,
390                d->rirb_count, d->rirb_cnt);
391         if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
392             d->rirb_sts |= ICH6_RBSTS_IRQ;
393             intel_hda_update_irq(d);
394         }
395     }
396 }
397 
398 static bool intel_hda_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
399                            uint8_t *buf, uint32_t len)
400 {
401     const MemTxAttrs attrs = MEMTXATTRS_UNSPECIFIED;
402     HDACodecBus *bus = HDA_BUS(dev->qdev.parent_bus);
403     IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
404     hwaddr addr;
405     uint32_t s, copy, left;
406     IntelHDAStream *st;
407     bool irq = false;
408 
409     st = output ? d->st + 4 : d->st;
410     for (s = 0; s < 4; s++) {
411         if (stnr == ((st[s].ctl >> 20) & 0x0f)) {
412             st = st + s;
413             break;
414         }
415     }
416     if (s == 4) {
417         return false;
418     }
419     if (st->bpl == NULL) {
420         return false;
421     }
422 
423     left = len;
424     s = st->bentries;
425     while (left > 0 && s-- > 0) {
426         copy = left;
427         if (copy > st->bsize - st->lpib)
428             copy = st->bsize - st->lpib;
429         if (copy > st->bpl[st->be].len - st->bp)
430             copy = st->bpl[st->be].len - st->bp;
431 
432         dprint(d, 3, "dma: entry %d, pos %d/%d, copy %d\n",
433                st->be, st->bp, st->bpl[st->be].len, copy);
434 
435         pci_dma_rw(&d->pci, st->bpl[st->be].addr + st->bp, buf, copy, !output,
436                    attrs);
437         st->lpib += copy;
438         st->bp += copy;
439         buf += copy;
440         left -= copy;
441 
442         if (st->bpl[st->be].len == st->bp) {
443             /* bpl entry filled */
444             if (st->bpl[st->be].flags & 0x01) {
445                 irq = true;
446             }
447             st->bp = 0;
448             st->be++;
449             if (st->be == st->bentries) {
450                 /* bpl wrap around */
451                 st->be = 0;
452                 st->lpib = 0;
453             }
454         }
455     }
456     if (d->dp_lbase & 0x01) {
457         s = st - d->st;
458         addr = intel_hda_addr(d->dp_lbase & ~0x01, d->dp_ubase);
459         stl_le_pci_dma(&d->pci, addr + 8 * s, st->lpib, attrs);
460     }
461     dprint(d, 3, "dma: --\n");
462 
463     if (irq) {
464         st->ctl |= (1 << 26); /* buffer completion interrupt */
465         intel_hda_update_irq(d);
466     }
467     return true;
468 }
469 
470 static void intel_hda_parse_bdl(IntelHDAState *d, IntelHDAStream *st)
471 {
472     hwaddr addr;
473     uint8_t buf[16];
474     uint32_t i;
475 
476     addr = intel_hda_addr(st->bdlp_lbase, st->bdlp_ubase);
477     st->bentries = st->lvi +1;
478     g_free(st->bpl);
479     st->bpl = g_new(bpl, st->bentries);
480     for (i = 0; i < st->bentries; i++, addr += 16) {
481         pci_dma_read(&d->pci, addr, buf, 16);
482         st->bpl[i].addr  = le64_to_cpu(*(uint64_t *)buf);
483         st->bpl[i].len   = le32_to_cpu(*(uint32_t *)(buf + 8));
484         st->bpl[i].flags = le32_to_cpu(*(uint32_t *)(buf + 12));
485         dprint(d, 1, "bdl/%d: 0x%" PRIx64 " +0x%x, 0x%x\n",
486                i, st->bpl[i].addr, st->bpl[i].len, st->bpl[i].flags);
487     }
488 
489     st->bsize = st->cbl;
490     st->lpib  = 0;
491     st->be    = 0;
492     st->bp    = 0;
493 }
494 
495 static void intel_hda_notify_codecs(IntelHDAState *d, uint32_t stream, bool running, bool output)
496 {
497     BusChild *kid;
498     HDACodecDevice *cdev;
499 
500     QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
501         DeviceState *qdev = kid->child;
502         HDACodecDeviceClass *cdc;
503 
504         cdev = HDA_CODEC_DEVICE(qdev);
505         cdc = HDA_CODEC_DEVICE_GET_CLASS(cdev);
506         if (cdc->stream) {
507             cdc->stream(cdev, stream, running, output);
508         }
509     }
510 }
511 
512 /* --------------------------------------------------------------------- */
513 
514 static void intel_hda_set_g_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
515 {
516     if ((d->g_ctl & ICH6_GCTL_RESET) == 0) {
517         device_cold_reset(DEVICE(d));
518     }
519 }
520 
521 static void intel_hda_set_wake_en(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
522 {
523     intel_hda_update_irq(d);
524 }
525 
526 static void intel_hda_set_state_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
527 {
528     intel_hda_update_irq(d);
529 }
530 
531 static void intel_hda_set_int_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
532 {
533     intel_hda_update_irq(d);
534 }
535 
536 static void intel_hda_get_wall_clk(IntelHDAState *d, const IntelHDAReg *reg)
537 {
538     int64_t ns;
539 
540     ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - d->wall_base_ns;
541     d->wall_clk = (uint32_t)(ns * 24 / 1000);  /* 24 MHz */
542 }
543 
544 static void intel_hda_set_corb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
545 {
546     intel_hda_corb_run(d);
547 }
548 
549 static void intel_hda_set_corb_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
550 {
551     intel_hda_corb_run(d);
552 }
553 
554 static void intel_hda_set_rirb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
555 {
556     if (d->rirb_wp & ICH6_RIRBWP_RST) {
557         d->rirb_wp = 0;
558     }
559 }
560 
561 static void intel_hda_set_rirb_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
562 {
563     intel_hda_update_irq(d);
564 
565     if ((old & ICH6_RBSTS_IRQ) && !(d->rirb_sts & ICH6_RBSTS_IRQ)) {
566         /* cleared ICH6_RBSTS_IRQ */
567         d->rirb_count = 0;
568         intel_hda_corb_run(d);
569     }
570 }
571 
572 static void intel_hda_set_ics(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
573 {
574     if (d->ics & ICH6_IRS_BUSY) {
575         intel_hda_corb_run(d);
576     }
577 }
578 
579 static void intel_hda_set_st_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
580 {
581     bool output = reg->stream >= 4;
582     IntelHDAStream *st = d->st + reg->stream;
583 
584     if (st->ctl & 0x01) {
585         /* reset */
586         dprint(d, 1, "st #%d: reset\n", reg->stream);
587         st->ctl = SD_STS_FIFO_READY << 24 | SD_CTL_STREAM_RESET;
588     }
589     if ((st->ctl & 0x02) != (old & 0x02)) {
590         uint32_t stnr = (st->ctl >> 20) & 0x0f;
591         /* run bit flipped */
592         if (st->ctl & 0x02) {
593             /* start */
594             dprint(d, 1, "st #%d: start %d (ring buf %d bytes)\n",
595                    reg->stream, stnr, st->cbl);
596             intel_hda_parse_bdl(d, st);
597             intel_hda_notify_codecs(d, stnr, true, output);
598         } else {
599             /* stop */
600             dprint(d, 1, "st #%d: stop %d\n", reg->stream, stnr);
601             intel_hda_notify_codecs(d, stnr, false, output);
602         }
603     }
604     intel_hda_update_irq(d);
605 }
606 
607 /* --------------------------------------------------------------------- */
608 
609 #define ST_REG(_n, _o) (0x80 + (_n) * 0x20 + (_o))
610 
611 static const struct IntelHDAReg regtab[] = {
612     /* global */
613     [ ICH6_REG_GCAP ] = {
614         .name     = "GCAP",
615         .size     = 2,
616         .reset    = 0x4401,
617     },
618     [ ICH6_REG_VMIN ] = {
619         .name     = "VMIN",
620         .size     = 1,
621     },
622     [ ICH6_REG_VMAJ ] = {
623         .name     = "VMAJ",
624         .size     = 1,
625         .reset    = 1,
626     },
627     [ ICH6_REG_OUTPAY ] = {
628         .name     = "OUTPAY",
629         .size     = 2,
630         .reset    = 0x3c,
631     },
632     [ ICH6_REG_INPAY ] = {
633         .name     = "INPAY",
634         .size     = 2,
635         .reset    = 0x1d,
636     },
637     [ ICH6_REG_GCTL ] = {
638         .name     = "GCTL",
639         .size     = 4,
640         .wmask    = 0x0103,
641         .offset   = offsetof(IntelHDAState, g_ctl),
642         .whandler = intel_hda_set_g_ctl,
643     },
644     [ ICH6_REG_WAKEEN ] = {
645         .name     = "WAKEEN",
646         .size     = 2,
647         .wmask    = 0x7fff,
648         .offset   = offsetof(IntelHDAState, wake_en),
649         .whandler = intel_hda_set_wake_en,
650     },
651     [ ICH6_REG_STATESTS ] = {
652         .name     = "STATESTS",
653         .size     = 2,
654         .wmask    = 0x7fff,
655         .wclear   = 0x7fff,
656         .offset   = offsetof(IntelHDAState, state_sts),
657         .whandler = intel_hda_set_state_sts,
658     },
659 
660     /* interrupts */
661     [ ICH6_REG_INTCTL ] = {
662         .name     = "INTCTL",
663         .size     = 4,
664         .wmask    = 0xc00000ff,
665         .offset   = offsetof(IntelHDAState, int_ctl),
666         .whandler = intel_hda_set_int_ctl,
667     },
668     [ ICH6_REG_INTSTS ] = {
669         .name     = "INTSTS",
670         .size     = 4,
671         .wmask    = 0xc00000ff,
672         .wclear   = 0xc00000ff,
673         .offset   = offsetof(IntelHDAState, int_sts),
674     },
675 
676     /* misc */
677     [ ICH6_REG_WALLCLK ] = {
678         .name     = "WALLCLK",
679         .size     = 4,
680         .offset   = offsetof(IntelHDAState, wall_clk),
681         .rhandler = intel_hda_get_wall_clk,
682     },
683 
684     /* dma engine */
685     [ ICH6_REG_CORBLBASE ] = {
686         .name     = "CORBLBASE",
687         .size     = 4,
688         .wmask    = 0xffffff80,
689         .offset   = offsetof(IntelHDAState, corb_lbase),
690     },
691     [ ICH6_REG_CORBUBASE ] = {
692         .name     = "CORBUBASE",
693         .size     = 4,
694         .wmask    = 0xffffffff,
695         .offset   = offsetof(IntelHDAState, corb_ubase),
696     },
697     [ ICH6_REG_CORBWP ] = {
698         .name     = "CORBWP",
699         .size     = 2,
700         .wmask    = 0xff,
701         .offset   = offsetof(IntelHDAState, corb_wp),
702         .whandler = intel_hda_set_corb_wp,
703     },
704     [ ICH6_REG_CORBRP ] = {
705         .name     = "CORBRP",
706         .size     = 2,
707         .wmask    = 0x80ff,
708         .offset   = offsetof(IntelHDAState, corb_rp),
709     },
710     [ ICH6_REG_CORBCTL ] = {
711         .name     = "CORBCTL",
712         .size     = 1,
713         .wmask    = 0x03,
714         .offset   = offsetof(IntelHDAState, corb_ctl),
715         .whandler = intel_hda_set_corb_ctl,
716     },
717     [ ICH6_REG_CORBSTS ] = {
718         .name     = "CORBSTS",
719         .size     = 1,
720         .wmask    = 0x01,
721         .wclear   = 0x01,
722         .offset   = offsetof(IntelHDAState, corb_sts),
723     },
724     [ ICH6_REG_CORBSIZE ] = {
725         .name     = "CORBSIZE",
726         .size     = 1,
727         .reset    = 0x42,
728         .offset   = offsetof(IntelHDAState, corb_size),
729     },
730     [ ICH6_REG_RIRBLBASE ] = {
731         .name     = "RIRBLBASE",
732         .size     = 4,
733         .wmask    = 0xffffff80,
734         .offset   = offsetof(IntelHDAState, rirb_lbase),
735     },
736     [ ICH6_REG_RIRBUBASE ] = {
737         .name     = "RIRBUBASE",
738         .size     = 4,
739         .wmask    = 0xffffffff,
740         .offset   = offsetof(IntelHDAState, rirb_ubase),
741     },
742     [ ICH6_REG_RIRBWP ] = {
743         .name     = "RIRBWP",
744         .size     = 2,
745         .wmask    = 0x8000,
746         .offset   = offsetof(IntelHDAState, rirb_wp),
747         .whandler = intel_hda_set_rirb_wp,
748     },
749     [ ICH6_REG_RINTCNT ] = {
750         .name     = "RINTCNT",
751         .size     = 2,
752         .wmask    = 0xff,
753         .offset   = offsetof(IntelHDAState, rirb_cnt),
754     },
755     [ ICH6_REG_RIRBCTL ] = {
756         .name     = "RIRBCTL",
757         .size     = 1,
758         .wmask    = 0x07,
759         .offset   = offsetof(IntelHDAState, rirb_ctl),
760     },
761     [ ICH6_REG_RIRBSTS ] = {
762         .name     = "RIRBSTS",
763         .size     = 1,
764         .wmask    = 0x05,
765         .wclear   = 0x05,
766         .offset   = offsetof(IntelHDAState, rirb_sts),
767         .whandler = intel_hda_set_rirb_sts,
768     },
769     [ ICH6_REG_RIRBSIZE ] = {
770         .name     = "RIRBSIZE",
771         .size     = 1,
772         .reset    = 0x42,
773         .offset   = offsetof(IntelHDAState, rirb_size),
774     },
775 
776     [ ICH6_REG_DPLBASE ] = {
777         .name     = "DPLBASE",
778         .size     = 4,
779         .wmask    = 0xffffff81,
780         .offset   = offsetof(IntelHDAState, dp_lbase),
781     },
782     [ ICH6_REG_DPUBASE ] = {
783         .name     = "DPUBASE",
784         .size     = 4,
785         .wmask    = 0xffffffff,
786         .offset   = offsetof(IntelHDAState, dp_ubase),
787     },
788 
789     [ ICH6_REG_IC ] = {
790         .name     = "ICW",
791         .size     = 4,
792         .wmask    = 0xffffffff,
793         .offset   = offsetof(IntelHDAState, icw),
794     },
795     [ ICH6_REG_IR ] = {
796         .name     = "IRR",
797         .size     = 4,
798         .offset   = offsetof(IntelHDAState, irr),
799     },
800     [ ICH6_REG_IRS ] = {
801         .name     = "ICS",
802         .size     = 2,
803         .wmask    = 0x0003,
804         .wclear   = 0x0002,
805         .offset   = offsetof(IntelHDAState, ics),
806         .whandler = intel_hda_set_ics,
807     },
808 
809 #define HDA_STREAM(_t, _i)                                            \
810     [ ST_REG(_i, ICH6_REG_SD_CTL) ] = {                               \
811         .stream   = _i,                                               \
812         .name     = _t stringify(_i) " CTL",                          \
813         .size     = 4,                                                \
814         .wmask    = 0x1cff001f,                                       \
815         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
816         .whandler = intel_hda_set_st_ctl,                             \
817     },                                                                \
818     [ ST_REG(_i, ICH6_REG_SD_CTL) + 2] = {                            \
819         .stream   = _i,                                               \
820         .name     = _t stringify(_i) " CTL(stnr)",                    \
821         .size     = 1,                                                \
822         .shift    = 16,                                               \
823         .wmask    = 0x00ff0000,                                       \
824         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
825         .whandler = intel_hda_set_st_ctl,                             \
826     },                                                                \
827     [ ST_REG(_i, ICH6_REG_SD_STS)] = {                                \
828         .stream   = _i,                                               \
829         .name     = _t stringify(_i) " CTL(sts)",                     \
830         .size     = 1,                                                \
831         .shift    = 24,                                               \
832         .wmask    = 0x1c000000,                                       \
833         .wclear   = 0x1c000000,                                       \
834         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
835         .whandler = intel_hda_set_st_ctl,                             \
836         .reset    = SD_STS_FIFO_READY << 24                           \
837     },                                                                \
838     [ ST_REG(_i, ICH6_REG_SD_LPIB) ] = {                              \
839         .stream   = _i,                                               \
840         .name     = _t stringify(_i) " LPIB",                         \
841         .size     = 4,                                                \
842         .offset   = offsetof(IntelHDAState, st[_i].lpib),             \
843     },                                                                \
844     [ ST_REG(_i, ICH6_REG_SD_CBL) ] = {                               \
845         .stream   = _i,                                               \
846         .name     = _t stringify(_i) " CBL",                          \
847         .size     = 4,                                                \
848         .wmask    = 0xffffffff,                                       \
849         .offset   = offsetof(IntelHDAState, st[_i].cbl),              \
850     },                                                                \
851     [ ST_REG(_i, ICH6_REG_SD_LVI) ] = {                               \
852         .stream   = _i,                                               \
853         .name     = _t stringify(_i) " LVI",                          \
854         .size     = 2,                                                \
855         .wmask    = 0x00ff,                                           \
856         .offset   = offsetof(IntelHDAState, st[_i].lvi),              \
857     },                                                                \
858     [ ST_REG(_i, ICH6_REG_SD_FIFOSIZE) ] = {                          \
859         .stream   = _i,                                               \
860         .name     = _t stringify(_i) " FIFOS",                        \
861         .size     = 2,                                                \
862         .reset    = HDA_BUFFER_SIZE,                                  \
863     },                                                                \
864     [ ST_REG(_i, ICH6_REG_SD_FORMAT) ] = {                            \
865         .stream   = _i,                                               \
866         .name     = _t stringify(_i) " FMT",                          \
867         .size     = 2,                                                \
868         .wmask    = 0x7f7f,                                           \
869         .offset   = offsetof(IntelHDAState, st[_i].fmt),              \
870     },                                                                \
871     [ ST_REG(_i, ICH6_REG_SD_BDLPL) ] = {                             \
872         .stream   = _i,                                               \
873         .name     = _t stringify(_i) " BDLPL",                        \
874         .size     = 4,                                                \
875         .wmask    = 0xffffff80,                                       \
876         .offset   = offsetof(IntelHDAState, st[_i].bdlp_lbase),       \
877     },                                                                \
878     [ ST_REG(_i, ICH6_REG_SD_BDLPU) ] = {                             \
879         .stream   = _i,                                               \
880         .name     = _t stringify(_i) " BDLPU",                        \
881         .size     = 4,                                                \
882         .wmask    = 0xffffffff,                                       \
883         .offset   = offsetof(IntelHDAState, st[_i].bdlp_ubase),       \
884     },                                                                \
885 
886     HDA_STREAM("IN", 0)
887     HDA_STREAM("IN", 1)
888     HDA_STREAM("IN", 2)
889     HDA_STREAM("IN", 3)
890 
891     HDA_STREAM("OUT", 4)
892     HDA_STREAM("OUT", 5)
893     HDA_STREAM("OUT", 6)
894     HDA_STREAM("OUT", 7)
895 
896 };
897 
898 static const IntelHDAReg *intel_hda_reg_find(IntelHDAState *d, hwaddr addr)
899 {
900     const IntelHDAReg *reg;
901 
902     if (addr >= ARRAY_SIZE(regtab)) {
903         goto noreg;
904     }
905     reg = regtab+addr;
906     if (reg->name == NULL) {
907         goto noreg;
908     }
909     return reg;
910 
911 noreg:
912     dprint(d, 1, "unknown register, addr 0x%x\n", (int) addr);
913     return NULL;
914 }
915 
916 static uint32_t *intel_hda_reg_addr(IntelHDAState *d, const IntelHDAReg *reg)
917 {
918     uint8_t *addr = (void*)d;
919 
920     addr += reg->offset;
921     return (uint32_t*)addr;
922 }
923 
924 static void intel_hda_reg_write(IntelHDAState *d, const IntelHDAReg *reg, uint32_t val,
925                                 uint32_t wmask)
926 {
927     uint32_t *addr;
928     uint32_t old;
929 
930     if (!reg) {
931         return;
932     }
933     if (!reg->wmask) {
934         qemu_log_mask(LOG_GUEST_ERROR, "intel-hda: write to r/o reg %s\n",
935                       reg->name);
936         return;
937     }
938 
939     if (d->debug) {
940         time_t now = time(NULL);
941         if (d->last_write && d->last_reg == reg && d->last_val == val) {
942             d->repeat_count++;
943             if (d->last_sec != now) {
944                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
945                 d->last_sec = now;
946                 d->repeat_count = 0;
947             }
948         } else {
949             if (d->repeat_count) {
950                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
951             }
952             dprint(d, 2, "write %-16s: 0x%x (%x)\n", reg->name, val, wmask);
953             d->last_write = 1;
954             d->last_reg   = reg;
955             d->last_val   = val;
956             d->last_sec   = now;
957             d->repeat_count = 0;
958         }
959     }
960     assert(reg->offset != 0);
961 
962     addr = intel_hda_reg_addr(d, reg);
963     old = *addr;
964 
965     if (reg->shift) {
966         val <<= reg->shift;
967         wmask <<= reg->shift;
968     }
969     wmask &= reg->wmask;
970     *addr &= ~wmask;
971     *addr |= wmask & val;
972     *addr &= ~(val & reg->wclear);
973 
974     if (reg->whandler) {
975         reg->whandler(d, reg, old);
976     }
977 }
978 
979 static uint32_t intel_hda_reg_read(IntelHDAState *d, const IntelHDAReg *reg,
980                                    uint32_t rmask)
981 {
982     uint32_t *addr, ret;
983 
984     if (!reg) {
985         return 0;
986     }
987 
988     if (reg->rhandler) {
989         reg->rhandler(d, reg);
990     }
991 
992     if (reg->offset == 0) {
993         /* constant read-only register */
994         ret = reg->reset;
995     } else {
996         addr = intel_hda_reg_addr(d, reg);
997         ret = *addr;
998         if (reg->shift) {
999             ret >>= reg->shift;
1000         }
1001         ret &= rmask;
1002     }
1003     if (d->debug) {
1004         time_t now = time(NULL);
1005         if (!d->last_write && d->last_reg == reg && d->last_val == ret) {
1006             d->repeat_count++;
1007             if (d->last_sec != now) {
1008                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1009                 d->last_sec = now;
1010                 d->repeat_count = 0;
1011             }
1012         } else {
1013             if (d->repeat_count) {
1014                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1015             }
1016             dprint(d, 2, "read  %-16s: 0x%x (%x)\n", reg->name, ret, rmask);
1017             d->last_write = 0;
1018             d->last_reg   = reg;
1019             d->last_val   = ret;
1020             d->last_sec   = now;
1021             d->repeat_count = 0;
1022         }
1023     }
1024     return ret;
1025 }
1026 
1027 static void intel_hda_regs_reset(IntelHDAState *d)
1028 {
1029     uint32_t *addr;
1030     int i;
1031 
1032     for (i = 0; i < ARRAY_SIZE(regtab); i++) {
1033         if (regtab[i].name == NULL) {
1034             continue;
1035         }
1036         if (regtab[i].offset == 0) {
1037             continue;
1038         }
1039         addr = intel_hda_reg_addr(d, regtab + i);
1040         *addr = regtab[i].reset;
1041     }
1042 }
1043 
1044 /* --------------------------------------------------------------------- */
1045 
1046 static void intel_hda_mmio_write(void *opaque, hwaddr addr, uint64_t val,
1047                                  unsigned size)
1048 {
1049     IntelHDAState *d = opaque;
1050     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1051 
1052     intel_hda_reg_write(d, reg, val, MAKE_64BIT_MASK(0, size * 8));
1053 }
1054 
1055 static uint64_t intel_hda_mmio_read(void *opaque, hwaddr addr, unsigned size)
1056 {
1057     IntelHDAState *d = opaque;
1058     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1059 
1060     return intel_hda_reg_read(d, reg, MAKE_64BIT_MASK(0, size * 8));
1061 }
1062 
1063 static const MemoryRegionOps intel_hda_mmio_ops = {
1064     .read = intel_hda_mmio_read,
1065     .write = intel_hda_mmio_write,
1066     .impl = {
1067         .min_access_size = 1,
1068         .max_access_size = 4,
1069     },
1070     .endianness = DEVICE_NATIVE_ENDIAN,
1071 };
1072 
1073 /* --------------------------------------------------------------------- */
1074 
1075 static void intel_hda_reset(DeviceState *dev)
1076 {
1077     BusChild *kid;
1078     IntelHDAState *d = INTEL_HDA(dev);
1079     HDACodecDevice *cdev;
1080 
1081     intel_hda_regs_reset(d);
1082     d->wall_base_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
1083 
1084     QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
1085         DeviceState *qdev = kid->child;
1086         cdev = HDA_CODEC_DEVICE(qdev);
1087         d->state_sts |= (1 << cdev->cad);
1088     }
1089     intel_hda_update_irq(d);
1090 }
1091 
1092 static void intel_hda_realize(PCIDevice *pci, Error **errp)
1093 {
1094     IntelHDAState *d = INTEL_HDA(pci);
1095     uint8_t *conf = d->pci.config;
1096     Error *err = NULL;
1097     int ret;
1098 
1099     d->name = object_get_typename(OBJECT(d));
1100 
1101     pci_config_set_interrupt_pin(conf, 1);
1102 
1103     /* HDCTL off 0x40 bit 0 selects signaling mode (1-HDA, 0 - Ac97) 18.1.19 */
1104     conf[0x40] = 0x01;
1105 
1106     if (d->msi != ON_OFF_AUTO_OFF) {
1107         ret = msi_init(&d->pci, d->old_msi_addr ? 0x50 : 0x60,
1108                        1, true, false, &err);
1109         /* Any error other than -ENOTSUP(board's MSI support is broken)
1110          * is a programming error */
1111         assert(!ret || ret == -ENOTSUP);
1112         if (ret && d->msi == ON_OFF_AUTO_ON) {
1113             /* Can't satisfy user's explicit msi=on request, fail */
1114             error_append_hint(&err, "You have to use msi=auto (default) or "
1115                     "msi=off with this machine type.\n");
1116             error_propagate(errp, err);
1117             return;
1118         }
1119         assert(!err || d->msi == ON_OFF_AUTO_AUTO);
1120         /* With msi=auto, we fall back to MSI off silently */
1121         error_free(err);
1122     }
1123 
1124     memory_region_init(&d->container, OBJECT(d),
1125                        "intel-hda-container", 0x4000);
1126     memory_region_init_io(&d->mmio, OBJECT(d), &intel_hda_mmio_ops, d,
1127                           "intel-hda", 0x2000);
1128     memory_region_add_subregion(&d->container, 0x0000, &d->mmio);
1129     memory_region_init_alias(&d->alias, OBJECT(d), "intel-hda-alias",
1130                              &d->mmio, 0, 0x2000);
1131     memory_region_add_subregion(&d->container, 0x2000, &d->alias);
1132     pci_register_bar(&d->pci, 0, 0, &d->container);
1133 
1134     hda_codec_bus_init(DEVICE(pci), &d->codecs, sizeof(d->codecs),
1135                        intel_hda_response, intel_hda_xfer);
1136 }
1137 
1138 static void intel_hda_exit(PCIDevice *pci)
1139 {
1140     IntelHDAState *d = INTEL_HDA(pci);
1141 
1142     msi_uninit(&d->pci);
1143 }
1144 
1145 static int intel_hda_post_load(void *opaque, int version)
1146 {
1147     IntelHDAState* d = opaque;
1148     int i;
1149 
1150     dprint(d, 1, "%s\n", __func__);
1151     for (i = 0; i < ARRAY_SIZE(d->st); i++) {
1152         if (d->st[i].ctl & 0x02) {
1153             intel_hda_parse_bdl(d, &d->st[i]);
1154         }
1155     }
1156     intel_hda_update_irq(d);
1157     return 0;
1158 }
1159 
1160 static const VMStateDescription vmstate_intel_hda_stream = {
1161     .name = "intel-hda-stream",
1162     .version_id = 1,
1163     .fields = (VMStateField[]) {
1164         VMSTATE_UINT32(ctl, IntelHDAStream),
1165         VMSTATE_UINT32(lpib, IntelHDAStream),
1166         VMSTATE_UINT32(cbl, IntelHDAStream),
1167         VMSTATE_UINT32(lvi, IntelHDAStream),
1168         VMSTATE_UINT32(fmt, IntelHDAStream),
1169         VMSTATE_UINT32(bdlp_lbase, IntelHDAStream),
1170         VMSTATE_UINT32(bdlp_ubase, IntelHDAStream),
1171         VMSTATE_END_OF_LIST()
1172     }
1173 };
1174 
1175 static const VMStateDescription vmstate_intel_hda = {
1176     .name = "intel-hda",
1177     .version_id = 1,
1178     .post_load = intel_hda_post_load,
1179     .fields = (VMStateField[]) {
1180         VMSTATE_PCI_DEVICE(pci, IntelHDAState),
1181 
1182         /* registers */
1183         VMSTATE_UINT32(g_ctl, IntelHDAState),
1184         VMSTATE_UINT32(wake_en, IntelHDAState),
1185         VMSTATE_UINT32(state_sts, IntelHDAState),
1186         VMSTATE_UINT32(int_ctl, IntelHDAState),
1187         VMSTATE_UINT32(int_sts, IntelHDAState),
1188         VMSTATE_UINT32(wall_clk, IntelHDAState),
1189         VMSTATE_UINT32(corb_lbase, IntelHDAState),
1190         VMSTATE_UINT32(corb_ubase, IntelHDAState),
1191         VMSTATE_UINT32(corb_rp, IntelHDAState),
1192         VMSTATE_UINT32(corb_wp, IntelHDAState),
1193         VMSTATE_UINT32(corb_ctl, IntelHDAState),
1194         VMSTATE_UINT32(corb_sts, IntelHDAState),
1195         VMSTATE_UINT32(corb_size, IntelHDAState),
1196         VMSTATE_UINT32(rirb_lbase, IntelHDAState),
1197         VMSTATE_UINT32(rirb_ubase, IntelHDAState),
1198         VMSTATE_UINT32(rirb_wp, IntelHDAState),
1199         VMSTATE_UINT32(rirb_cnt, IntelHDAState),
1200         VMSTATE_UINT32(rirb_ctl, IntelHDAState),
1201         VMSTATE_UINT32(rirb_sts, IntelHDAState),
1202         VMSTATE_UINT32(rirb_size, IntelHDAState),
1203         VMSTATE_UINT32(dp_lbase, IntelHDAState),
1204         VMSTATE_UINT32(dp_ubase, IntelHDAState),
1205         VMSTATE_UINT32(icw, IntelHDAState),
1206         VMSTATE_UINT32(irr, IntelHDAState),
1207         VMSTATE_UINT32(ics, IntelHDAState),
1208         VMSTATE_STRUCT_ARRAY(st, IntelHDAState, 8, 0,
1209                              vmstate_intel_hda_stream,
1210                              IntelHDAStream),
1211 
1212         /* additional state info */
1213         VMSTATE_UINT32(rirb_count, IntelHDAState),
1214         VMSTATE_INT64(wall_base_ns, IntelHDAState),
1215 
1216         VMSTATE_END_OF_LIST()
1217     }
1218 };
1219 
1220 static Property intel_hda_properties[] = {
1221     DEFINE_PROP_UINT32("debug", IntelHDAState, debug, 0),
1222     DEFINE_PROP_ON_OFF_AUTO("msi", IntelHDAState, msi, ON_OFF_AUTO_AUTO),
1223     DEFINE_PROP_BOOL("old_msi_addr", IntelHDAState, old_msi_addr, false),
1224     DEFINE_PROP_END_OF_LIST(),
1225 };
1226 
1227 static void intel_hda_class_init(ObjectClass *klass, void *data)
1228 {
1229     DeviceClass *dc = DEVICE_CLASS(klass);
1230     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1231 
1232     k->realize = intel_hda_realize;
1233     k->exit = intel_hda_exit;
1234     k->vendor_id = PCI_VENDOR_ID_INTEL;
1235     k->class_id = PCI_CLASS_MULTIMEDIA_HD_AUDIO;
1236     dc->reset = intel_hda_reset;
1237     dc->vmsd = &vmstate_intel_hda;
1238     device_class_set_props(dc, intel_hda_properties);
1239 }
1240 
1241 static void intel_hda_class_init_ich6(ObjectClass *klass, void *data)
1242 {
1243     DeviceClass *dc = DEVICE_CLASS(klass);
1244     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1245 
1246     k->device_id = 0x2668;
1247     k->revision = 1;
1248     set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
1249     dc->desc = "Intel HD Audio Controller (ich6)";
1250 }
1251 
1252 static void intel_hda_class_init_ich9(ObjectClass *klass, void *data)
1253 {
1254     DeviceClass *dc = DEVICE_CLASS(klass);
1255     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1256 
1257     k->device_id = 0x293e;
1258     k->revision = 3;
1259     set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
1260     dc->desc = "Intel HD Audio Controller (ich9)";
1261 }
1262 
1263 static const TypeInfo intel_hda_info = {
1264     .name          = TYPE_INTEL_HDA_GENERIC,
1265     .parent        = TYPE_PCI_DEVICE,
1266     .instance_size = sizeof(IntelHDAState),
1267     .class_init    = intel_hda_class_init,
1268     .abstract      = true,
1269     .interfaces = (InterfaceInfo[]) {
1270         { INTERFACE_CONVENTIONAL_PCI_DEVICE },
1271         { },
1272     },
1273 };
1274 
1275 static const TypeInfo intel_hda_info_ich6 = {
1276     .name          = "intel-hda",
1277     .parent        = TYPE_INTEL_HDA_GENERIC,
1278     .class_init    = intel_hda_class_init_ich6,
1279 };
1280 
1281 static const TypeInfo intel_hda_info_ich9 = {
1282     .name          = "ich9-intel-hda",
1283     .parent        = TYPE_INTEL_HDA_GENERIC,
1284     .class_init    = intel_hda_class_init_ich9,
1285 };
1286 
1287 static void hda_codec_device_class_init(ObjectClass *klass, void *data)
1288 {
1289     DeviceClass *k = DEVICE_CLASS(klass);
1290     k->realize = hda_codec_dev_realize;
1291     k->unrealize = hda_codec_dev_unrealize;
1292     set_bit(DEVICE_CATEGORY_SOUND, k->categories);
1293     k->bus_type = TYPE_HDA_BUS;
1294     device_class_set_props(k, hda_props);
1295 }
1296 
1297 static const TypeInfo hda_codec_device_type_info = {
1298     .name = TYPE_HDA_CODEC_DEVICE,
1299     .parent = TYPE_DEVICE,
1300     .instance_size = sizeof(HDACodecDevice),
1301     .abstract = true,
1302     .class_size = sizeof(HDACodecDeviceClass),
1303     .class_init = hda_codec_device_class_init,
1304 };
1305 
1306 /*
1307  * create intel hda controller with codec attached to it,
1308  * so '-soundhw hda' works.
1309  */
1310 static int intel_hda_and_codec_init(PCIBus *bus, const char *audiodev)
1311 {
1312     DeviceState *controller;
1313     BusState *hdabus;
1314     DeviceState *codec;
1315 
1316     controller = DEVICE(pci_create_simple(bus, -1, "intel-hda"));
1317     hdabus = QLIST_FIRST(&controller->child_bus);
1318     codec = qdev_new("hda-duplex");
1319     qdev_prop_set_string(codec, "audiodev", audiodev);
1320     qdev_realize_and_unref(codec, hdabus, &error_fatal);
1321     return 0;
1322 }
1323 
1324 static void intel_hda_register_types(void)
1325 {
1326     type_register_static(&hda_codec_bus_info);
1327     type_register_static(&intel_hda_info);
1328     type_register_static(&intel_hda_info_ich6);
1329     type_register_static(&intel_hda_info_ich9);
1330     type_register_static(&hda_codec_device_type_info);
1331     pci_register_soundhw("hda", "Intel HD Audio", intel_hda_and_codec_init);
1332 }
1333 
1334 type_init(intel_hda_register_types)
1335