xref: /openbmc/qemu/hw/audio/intel-hda.c (revision 5accc840)
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, size_t bus_size,
44                         hda_codec_response_func response,
45                         hda_codec_xfer_func xfer)
46 {
47     qbus_create_inplace(bus, bus_size, 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 #define TYPE_INTEL_HDA_GENERIC "intel-hda-generic"
193 
194 #define INTEL_HDA(obj) \
195     OBJECT_CHECK(IntelHDAState, (obj), TYPE_INTEL_HDA_GENERIC)
196 
197 struct IntelHDAReg {
198     const char *name;      /* register name */
199     uint32_t   size;       /* size in bytes */
200     uint32_t   reset;      /* reset value */
201     uint32_t   wmask;      /* write mask */
202     uint32_t   wclear;     /* write 1 to clear bits */
203     uint32_t   offset;     /* location in IntelHDAState */
204     uint32_t   shift;      /* byte access entries for dwords */
205     uint32_t   stream;
206     void       (*whandler)(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old);
207     void       (*rhandler)(IntelHDAState *d, const IntelHDAReg *reg);
208 };
209 
210 static void intel_hda_reset(DeviceState *dev);
211 
212 /* --------------------------------------------------------------------- */
213 
214 static hwaddr intel_hda_addr(uint32_t lbase, uint32_t ubase)
215 {
216     hwaddr addr;
217 
218     addr = ((uint64_t)ubase << 32) | lbase;
219     return addr;
220 }
221 
222 static void intel_hda_update_int_sts(IntelHDAState *d)
223 {
224     uint32_t sts = 0;
225     uint32_t i;
226 
227     /* update controller status */
228     if (d->rirb_sts & ICH6_RBSTS_IRQ) {
229         sts |= (1 << 30);
230     }
231     if (d->rirb_sts & ICH6_RBSTS_OVERRUN) {
232         sts |= (1 << 30);
233     }
234     if (d->state_sts & d->wake_en) {
235         sts |= (1 << 30);
236     }
237 
238     /* update stream status */
239     for (i = 0; i < 8; i++) {
240         /* buffer completion interrupt */
241         if (d->st[i].ctl & (1 << 26)) {
242             sts |= (1 << i);
243         }
244     }
245 
246     /* update global status */
247     if (sts & d->int_ctl) {
248         sts |= (1 << 31);
249     }
250 
251     d->int_sts = sts;
252 }
253 
254 static void intel_hda_update_irq(IntelHDAState *d)
255 {
256     int msi = d->msi && msi_enabled(&d->pci);
257     int level;
258 
259     intel_hda_update_int_sts(d);
260     if (d->int_sts & (1 << 31) && d->int_ctl & (1 << 31)) {
261         level = 1;
262     } else {
263         level = 0;
264     }
265     dprint(d, 2, "%s: level %d [%s]\n", __FUNCTION__,
266            level, msi ? "msi" : "intx");
267     if (msi) {
268         if (level) {
269             msi_notify(&d->pci, 0);
270         }
271     } else {
272         qemu_set_irq(d->pci.irq[0], level);
273     }
274 }
275 
276 static int intel_hda_send_command(IntelHDAState *d, uint32_t verb)
277 {
278     uint32_t cad, nid, data;
279     HDACodecDevice *codec;
280     HDACodecDeviceClass *cdc;
281 
282     cad = (verb >> 28) & 0x0f;
283     if (verb & (1 << 27)) {
284         /* indirect node addressing, not specified in HDA 1.0 */
285         dprint(d, 1, "%s: indirect node addressing (guest bug?)\n", __FUNCTION__);
286         return -1;
287     }
288     nid = (verb >> 20) & 0x7f;
289     data = verb & 0xfffff;
290 
291     codec = hda_codec_find(&d->codecs, cad);
292     if (codec == NULL) {
293         dprint(d, 1, "%s: addressed non-existing codec\n", __FUNCTION__);
294         return -1;
295     }
296     cdc = HDA_CODEC_DEVICE_GET_CLASS(codec);
297     cdc->command(codec, nid, data);
298     return 0;
299 }
300 
301 static void intel_hda_corb_run(IntelHDAState *d)
302 {
303     hwaddr addr;
304     uint32_t rp, verb;
305 
306     if (d->ics & ICH6_IRS_BUSY) {
307         dprint(d, 2, "%s: [icw] verb 0x%08x\n", __FUNCTION__, d->icw);
308         intel_hda_send_command(d, d->icw);
309         return;
310     }
311 
312     for (;;) {
313         if (!(d->corb_ctl & ICH6_CORBCTL_RUN)) {
314             dprint(d, 2, "%s: !run\n", __FUNCTION__);
315             return;
316         }
317         if ((d->corb_rp & 0xff) == d->corb_wp) {
318             dprint(d, 2, "%s: corb ring empty\n", __FUNCTION__);
319             return;
320         }
321         if (d->rirb_count == d->rirb_cnt) {
322             dprint(d, 2, "%s: rirb count reached\n", __FUNCTION__);
323             return;
324         }
325 
326         rp = (d->corb_rp + 1) & 0xff;
327         addr = intel_hda_addr(d->corb_lbase, d->corb_ubase);
328         verb = ldl_le_pci_dma(&d->pci, addr + 4*rp);
329         d->corb_rp = rp;
330 
331         dprint(d, 2, "%s: [rp 0x%x] verb 0x%08x\n", __FUNCTION__, rp, verb);
332         intel_hda_send_command(d, verb);
333     }
334 }
335 
336 static void intel_hda_response(HDACodecDevice *dev, bool solicited, uint32_t response)
337 {
338     HDACodecBus *bus = DO_UPCAST(HDACodecBus, qbus, dev->qdev.parent_bus);
339     IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
340     hwaddr addr;
341     uint32_t wp, ex;
342 
343     if (d->ics & ICH6_IRS_BUSY) {
344         dprint(d, 2, "%s: [irr] response 0x%x, cad 0x%x\n",
345                __FUNCTION__, response, dev->cad);
346         d->irr = response;
347         d->ics &= ~(ICH6_IRS_BUSY | 0xf0);
348         d->ics |= (ICH6_IRS_VALID | (dev->cad << 4));
349         return;
350     }
351 
352     if (!(d->rirb_ctl & ICH6_RBCTL_DMA_EN)) {
353         dprint(d, 1, "%s: rirb dma disabled, drop codec response\n", __FUNCTION__);
354         return;
355     }
356 
357     ex = (solicited ? 0 : (1 << 4)) | dev->cad;
358     wp = (d->rirb_wp + 1) & 0xff;
359     addr = intel_hda_addr(d->rirb_lbase, d->rirb_ubase);
360     stl_le_pci_dma(&d->pci, addr + 8*wp, response);
361     stl_le_pci_dma(&d->pci, addr + 8*wp + 4, ex);
362     d->rirb_wp = wp;
363 
364     dprint(d, 2, "%s: [wp 0x%x] response 0x%x, extra 0x%x\n",
365            __FUNCTION__, wp, response, ex);
366 
367     d->rirb_count++;
368     if (d->rirb_count == d->rirb_cnt) {
369         dprint(d, 2, "%s: rirb count reached (%d)\n", __FUNCTION__, d->rirb_count);
370         if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
371             d->rirb_sts |= ICH6_RBSTS_IRQ;
372             intel_hda_update_irq(d);
373         }
374     } else if ((d->corb_rp & 0xff) == d->corb_wp) {
375         dprint(d, 2, "%s: corb ring empty (%d/%d)\n", __FUNCTION__,
376                d->rirb_count, d->rirb_cnt);
377         if (d->rirb_ctl & ICH6_RBCTL_IRQ_EN) {
378             d->rirb_sts |= ICH6_RBSTS_IRQ;
379             intel_hda_update_irq(d);
380         }
381     }
382 }
383 
384 static bool intel_hda_xfer(HDACodecDevice *dev, uint32_t stnr, bool output,
385                            uint8_t *buf, uint32_t len)
386 {
387     HDACodecBus *bus = DO_UPCAST(HDACodecBus, qbus, dev->qdev.parent_bus);
388     IntelHDAState *d = container_of(bus, IntelHDAState, codecs);
389     hwaddr addr;
390     uint32_t s, copy, left;
391     IntelHDAStream *st;
392     bool irq = false;
393 
394     st = output ? d->st + 4 : d->st;
395     for (s = 0; s < 4; s++) {
396         if (stnr == ((st[s].ctl >> 20) & 0x0f)) {
397             st = st + s;
398             break;
399         }
400     }
401     if (s == 4) {
402         return false;
403     }
404     if (st->bpl == NULL) {
405         return false;
406     }
407     if (st->ctl & (1 << 26)) {
408         /*
409          * Wait with the next DMA xfer until the guest
410          * has acked the buffer completion interrupt
411          */
412         return false;
413     }
414 
415     left = len;
416     while (left > 0) {
417         copy = left;
418         if (copy > st->bsize - st->lpib)
419             copy = st->bsize - st->lpib;
420         if (copy > st->bpl[st->be].len - st->bp)
421             copy = st->bpl[st->be].len - st->bp;
422 
423         dprint(d, 3, "dma: entry %d, pos %d/%d, copy %d\n",
424                st->be, st->bp, st->bpl[st->be].len, copy);
425 
426         pci_dma_rw(&d->pci, st->bpl[st->be].addr + st->bp, buf, copy, !output);
427         st->lpib += copy;
428         st->bp += copy;
429         buf += copy;
430         left -= copy;
431 
432         if (st->bpl[st->be].len == st->bp) {
433             /* bpl entry filled */
434             if (st->bpl[st->be].flags & 0x01) {
435                 irq = true;
436             }
437             st->bp = 0;
438             st->be++;
439             if (st->be == st->bentries) {
440                 /* bpl wrap around */
441                 st->be = 0;
442                 st->lpib = 0;
443             }
444         }
445     }
446     if (d->dp_lbase & 0x01) {
447         addr = intel_hda_addr(d->dp_lbase & ~0x01, d->dp_ubase);
448         stl_le_pci_dma(&d->pci, addr + 8*s, st->lpib);
449     }
450     dprint(d, 3, "dma: --\n");
451 
452     if (irq) {
453         st->ctl |= (1 << 26); /* buffer completion interrupt */
454         intel_hda_update_irq(d);
455     }
456     return true;
457 }
458 
459 static void intel_hda_parse_bdl(IntelHDAState *d, IntelHDAStream *st)
460 {
461     hwaddr addr;
462     uint8_t buf[16];
463     uint32_t i;
464 
465     addr = intel_hda_addr(st->bdlp_lbase, st->bdlp_ubase);
466     st->bentries = st->lvi +1;
467     g_free(st->bpl);
468     st->bpl = g_malloc(sizeof(bpl) * st->bentries);
469     for (i = 0; i < st->bentries; i++, addr += 16) {
470         pci_dma_read(&d->pci, addr, buf, 16);
471         st->bpl[i].addr  = le64_to_cpu(*(uint64_t *)buf);
472         st->bpl[i].len   = le32_to_cpu(*(uint32_t *)(buf + 8));
473         st->bpl[i].flags = le32_to_cpu(*(uint32_t *)(buf + 12));
474         dprint(d, 1, "bdl/%d: 0x%" PRIx64 " +0x%x, 0x%x\n",
475                i, st->bpl[i].addr, st->bpl[i].len, st->bpl[i].flags);
476     }
477 
478     st->bsize = st->cbl;
479     st->lpib  = 0;
480     st->be    = 0;
481     st->bp    = 0;
482 }
483 
484 static void intel_hda_notify_codecs(IntelHDAState *d, uint32_t stream, bool running, bool output)
485 {
486     BusChild *kid;
487     HDACodecDevice *cdev;
488 
489     QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
490         DeviceState *qdev = kid->child;
491         HDACodecDeviceClass *cdc;
492 
493         cdev = DO_UPCAST(HDACodecDevice, qdev, qdev);
494         cdc = HDA_CODEC_DEVICE_GET_CLASS(cdev);
495         if (cdc->stream) {
496             cdc->stream(cdev, stream, running, output);
497         }
498     }
499 }
500 
501 /* --------------------------------------------------------------------- */
502 
503 static void intel_hda_set_g_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
504 {
505     if ((d->g_ctl & ICH6_GCTL_RESET) == 0) {
506         intel_hda_reset(DEVICE(d));
507     }
508 }
509 
510 static void intel_hda_set_wake_en(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
511 {
512     intel_hda_update_irq(d);
513 }
514 
515 static void intel_hda_set_state_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
516 {
517     intel_hda_update_irq(d);
518 }
519 
520 static void intel_hda_set_int_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
521 {
522     intel_hda_update_irq(d);
523 }
524 
525 static void intel_hda_get_wall_clk(IntelHDAState *d, const IntelHDAReg *reg)
526 {
527     int64_t ns;
528 
529     ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - d->wall_base_ns;
530     d->wall_clk = (uint32_t)(ns * 24 / 1000);  /* 24 MHz */
531 }
532 
533 static void intel_hda_set_corb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
534 {
535     intel_hda_corb_run(d);
536 }
537 
538 static void intel_hda_set_corb_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
539 {
540     intel_hda_corb_run(d);
541 }
542 
543 static void intel_hda_set_rirb_wp(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
544 {
545     if (d->rirb_wp & ICH6_RIRBWP_RST) {
546         d->rirb_wp = 0;
547     }
548 }
549 
550 static void intel_hda_set_rirb_sts(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
551 {
552     intel_hda_update_irq(d);
553 
554     if ((old & ICH6_RBSTS_IRQ) && !(d->rirb_sts & ICH6_RBSTS_IRQ)) {
555         /* cleared ICH6_RBSTS_IRQ */
556         d->rirb_count = 0;
557         intel_hda_corb_run(d);
558     }
559 }
560 
561 static void intel_hda_set_ics(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
562 {
563     if (d->ics & ICH6_IRS_BUSY) {
564         intel_hda_corb_run(d);
565     }
566 }
567 
568 static void intel_hda_set_st_ctl(IntelHDAState *d, const IntelHDAReg *reg, uint32_t old)
569 {
570     bool output = reg->stream >= 4;
571     IntelHDAStream *st = d->st + reg->stream;
572 
573     if (st->ctl & 0x01) {
574         /* reset */
575         dprint(d, 1, "st #%d: reset\n", reg->stream);
576         st->ctl = 0;
577     }
578     if ((st->ctl & 0x02) != (old & 0x02)) {
579         uint32_t stnr = (st->ctl >> 20) & 0x0f;
580         /* run bit flipped */
581         if (st->ctl & 0x02) {
582             /* start */
583             dprint(d, 1, "st #%d: start %d (ring buf %d bytes)\n",
584                    reg->stream, stnr, st->cbl);
585             intel_hda_parse_bdl(d, st);
586             intel_hda_notify_codecs(d, stnr, true, output);
587         } else {
588             /* stop */
589             dprint(d, 1, "st #%d: stop %d\n", reg->stream, stnr);
590             intel_hda_notify_codecs(d, stnr, false, output);
591         }
592     }
593     intel_hda_update_irq(d);
594 }
595 
596 /* --------------------------------------------------------------------- */
597 
598 #define ST_REG(_n, _o) (0x80 + (_n) * 0x20 + (_o))
599 
600 static const struct IntelHDAReg regtab[] = {
601     /* global */
602     [ ICH6_REG_GCAP ] = {
603         .name     = "GCAP",
604         .size     = 2,
605         .reset    = 0x4401,
606     },
607     [ ICH6_REG_VMIN ] = {
608         .name     = "VMIN",
609         .size     = 1,
610     },
611     [ ICH6_REG_VMAJ ] = {
612         .name     = "VMAJ",
613         .size     = 1,
614         .reset    = 1,
615     },
616     [ ICH6_REG_OUTPAY ] = {
617         .name     = "OUTPAY",
618         .size     = 2,
619         .reset    = 0x3c,
620     },
621     [ ICH6_REG_INPAY ] = {
622         .name     = "INPAY",
623         .size     = 2,
624         .reset    = 0x1d,
625     },
626     [ ICH6_REG_GCTL ] = {
627         .name     = "GCTL",
628         .size     = 4,
629         .wmask    = 0x0103,
630         .offset   = offsetof(IntelHDAState, g_ctl),
631         .whandler = intel_hda_set_g_ctl,
632     },
633     [ ICH6_REG_WAKEEN ] = {
634         .name     = "WAKEEN",
635         .size     = 2,
636         .wmask    = 0x7fff,
637         .offset   = offsetof(IntelHDAState, wake_en),
638         .whandler = intel_hda_set_wake_en,
639     },
640     [ ICH6_REG_STATESTS ] = {
641         .name     = "STATESTS",
642         .size     = 2,
643         .wmask    = 0x7fff,
644         .wclear   = 0x7fff,
645         .offset   = offsetof(IntelHDAState, state_sts),
646         .whandler = intel_hda_set_state_sts,
647     },
648 
649     /* interrupts */
650     [ ICH6_REG_INTCTL ] = {
651         .name     = "INTCTL",
652         .size     = 4,
653         .wmask    = 0xc00000ff,
654         .offset   = offsetof(IntelHDAState, int_ctl),
655         .whandler = intel_hda_set_int_ctl,
656     },
657     [ ICH6_REG_INTSTS ] = {
658         .name     = "INTSTS",
659         .size     = 4,
660         .wmask    = 0xc00000ff,
661         .wclear   = 0xc00000ff,
662         .offset   = offsetof(IntelHDAState, int_sts),
663     },
664 
665     /* misc */
666     [ ICH6_REG_WALLCLK ] = {
667         .name     = "WALLCLK",
668         .size     = 4,
669         .offset   = offsetof(IntelHDAState, wall_clk),
670         .rhandler = intel_hda_get_wall_clk,
671     },
672     [ ICH6_REG_WALLCLK + 0x2000 ] = {
673         .name     = "WALLCLK(alias)",
674         .size     = 4,
675         .offset   = offsetof(IntelHDAState, wall_clk),
676         .rhandler = intel_hda_get_wall_clk,
677     },
678 
679     /* dma engine */
680     [ ICH6_REG_CORBLBASE ] = {
681         .name     = "CORBLBASE",
682         .size     = 4,
683         .wmask    = 0xffffff80,
684         .offset   = offsetof(IntelHDAState, corb_lbase),
685     },
686     [ ICH6_REG_CORBUBASE ] = {
687         .name     = "CORBUBASE",
688         .size     = 4,
689         .wmask    = 0xffffffff,
690         .offset   = offsetof(IntelHDAState, corb_ubase),
691     },
692     [ ICH6_REG_CORBWP ] = {
693         .name     = "CORBWP",
694         .size     = 2,
695         .wmask    = 0xff,
696         .offset   = offsetof(IntelHDAState, corb_wp),
697         .whandler = intel_hda_set_corb_wp,
698     },
699     [ ICH6_REG_CORBRP ] = {
700         .name     = "CORBRP",
701         .size     = 2,
702         .wmask    = 0x80ff,
703         .offset   = offsetof(IntelHDAState, corb_rp),
704     },
705     [ ICH6_REG_CORBCTL ] = {
706         .name     = "CORBCTL",
707         .size     = 1,
708         .wmask    = 0x03,
709         .offset   = offsetof(IntelHDAState, corb_ctl),
710         .whandler = intel_hda_set_corb_ctl,
711     },
712     [ ICH6_REG_CORBSTS ] = {
713         .name     = "CORBSTS",
714         .size     = 1,
715         .wmask    = 0x01,
716         .wclear   = 0x01,
717         .offset   = offsetof(IntelHDAState, corb_sts),
718     },
719     [ ICH6_REG_CORBSIZE ] = {
720         .name     = "CORBSIZE",
721         .size     = 1,
722         .reset    = 0x42,
723         .offset   = offsetof(IntelHDAState, corb_size),
724     },
725     [ ICH6_REG_RIRBLBASE ] = {
726         .name     = "RIRBLBASE",
727         .size     = 4,
728         .wmask    = 0xffffff80,
729         .offset   = offsetof(IntelHDAState, rirb_lbase),
730     },
731     [ ICH6_REG_RIRBUBASE ] = {
732         .name     = "RIRBUBASE",
733         .size     = 4,
734         .wmask    = 0xffffffff,
735         .offset   = offsetof(IntelHDAState, rirb_ubase),
736     },
737     [ ICH6_REG_RIRBWP ] = {
738         .name     = "RIRBWP",
739         .size     = 2,
740         .wmask    = 0x8000,
741         .offset   = offsetof(IntelHDAState, rirb_wp),
742         .whandler = intel_hda_set_rirb_wp,
743     },
744     [ ICH6_REG_RINTCNT ] = {
745         .name     = "RINTCNT",
746         .size     = 2,
747         .wmask    = 0xff,
748         .offset   = offsetof(IntelHDAState, rirb_cnt),
749     },
750     [ ICH6_REG_RIRBCTL ] = {
751         .name     = "RIRBCTL",
752         .size     = 1,
753         .wmask    = 0x07,
754         .offset   = offsetof(IntelHDAState, rirb_ctl),
755     },
756     [ ICH6_REG_RIRBSTS ] = {
757         .name     = "RIRBSTS",
758         .size     = 1,
759         .wmask    = 0x05,
760         .wclear   = 0x05,
761         .offset   = offsetof(IntelHDAState, rirb_sts),
762         .whandler = intel_hda_set_rirb_sts,
763     },
764     [ ICH6_REG_RIRBSIZE ] = {
765         .name     = "RIRBSIZE",
766         .size     = 1,
767         .reset    = 0x42,
768         .offset   = offsetof(IntelHDAState, rirb_size),
769     },
770 
771     [ ICH6_REG_DPLBASE ] = {
772         .name     = "DPLBASE",
773         .size     = 4,
774         .wmask    = 0xffffff81,
775         .offset   = offsetof(IntelHDAState, dp_lbase),
776     },
777     [ ICH6_REG_DPUBASE ] = {
778         .name     = "DPUBASE",
779         .size     = 4,
780         .wmask    = 0xffffffff,
781         .offset   = offsetof(IntelHDAState, dp_ubase),
782     },
783 
784     [ ICH6_REG_IC ] = {
785         .name     = "ICW",
786         .size     = 4,
787         .wmask    = 0xffffffff,
788         .offset   = offsetof(IntelHDAState, icw),
789     },
790     [ ICH6_REG_IR ] = {
791         .name     = "IRR",
792         .size     = 4,
793         .offset   = offsetof(IntelHDAState, irr),
794     },
795     [ ICH6_REG_IRS ] = {
796         .name     = "ICS",
797         .size     = 2,
798         .wmask    = 0x0003,
799         .wclear   = 0x0002,
800         .offset   = offsetof(IntelHDAState, ics),
801         .whandler = intel_hda_set_ics,
802     },
803 
804 #define HDA_STREAM(_t, _i)                                            \
805     [ ST_REG(_i, ICH6_REG_SD_CTL) ] = {                               \
806         .stream   = _i,                                               \
807         .name     = _t stringify(_i) " CTL",                          \
808         .size     = 4,                                                \
809         .wmask    = 0x1cff001f,                                       \
810         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
811         .whandler = intel_hda_set_st_ctl,                             \
812     },                                                                \
813     [ ST_REG(_i, ICH6_REG_SD_CTL) + 2] = {                            \
814         .stream   = _i,                                               \
815         .name     = _t stringify(_i) " CTL(stnr)",                    \
816         .size     = 1,                                                \
817         .shift    = 16,                                               \
818         .wmask    = 0x00ff0000,                                       \
819         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
820         .whandler = intel_hda_set_st_ctl,                             \
821     },                                                                \
822     [ ST_REG(_i, ICH6_REG_SD_STS)] = {                                \
823         .stream   = _i,                                               \
824         .name     = _t stringify(_i) " CTL(sts)",                     \
825         .size     = 1,                                                \
826         .shift    = 24,                                               \
827         .wmask    = 0x1c000000,                                       \
828         .wclear   = 0x1c000000,                                       \
829         .offset   = offsetof(IntelHDAState, st[_i].ctl),              \
830         .whandler = intel_hda_set_st_ctl,                             \
831     },                                                                \
832     [ ST_REG(_i, ICH6_REG_SD_LPIB) ] = {                              \
833         .stream   = _i,                                               \
834         .name     = _t stringify(_i) " LPIB",                         \
835         .size     = 4,                                                \
836         .offset   = offsetof(IntelHDAState, st[_i].lpib),             \
837     },                                                                \
838     [ ST_REG(_i, ICH6_REG_SD_LPIB) + 0x2000 ] = {                     \
839         .stream   = _i,                                               \
840         .name     = _t stringify(_i) " LPIB(alias)",                  \
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 >= sizeof(regtab)/sizeof(regtab[0])) {
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 
934     if (d->debug) {
935         time_t now = time(NULL);
936         if (d->last_write && d->last_reg == reg && d->last_val == val) {
937             d->repeat_count++;
938             if (d->last_sec != now) {
939                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
940                 d->last_sec = now;
941                 d->repeat_count = 0;
942             }
943         } else {
944             if (d->repeat_count) {
945                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
946             }
947             dprint(d, 2, "write %-16s: 0x%x (%x)\n", reg->name, val, wmask);
948             d->last_write = 1;
949             d->last_reg   = reg;
950             d->last_val   = val;
951             d->last_sec   = now;
952             d->repeat_count = 0;
953         }
954     }
955     assert(reg->offset != 0);
956 
957     addr = intel_hda_reg_addr(d, reg);
958     old = *addr;
959 
960     if (reg->shift) {
961         val <<= reg->shift;
962         wmask <<= reg->shift;
963     }
964     wmask &= reg->wmask;
965     *addr &= ~wmask;
966     *addr |= wmask & val;
967     *addr &= ~(val & reg->wclear);
968 
969     if (reg->whandler) {
970         reg->whandler(d, reg, old);
971     }
972 }
973 
974 static uint32_t intel_hda_reg_read(IntelHDAState *d, const IntelHDAReg *reg,
975                                    uint32_t rmask)
976 {
977     uint32_t *addr, ret;
978 
979     if (!reg) {
980         return 0;
981     }
982 
983     if (reg->rhandler) {
984         reg->rhandler(d, reg);
985     }
986 
987     if (reg->offset == 0) {
988         /* constant read-only register */
989         ret = reg->reset;
990     } else {
991         addr = intel_hda_reg_addr(d, reg);
992         ret = *addr;
993         if (reg->shift) {
994             ret >>= reg->shift;
995         }
996         ret &= rmask;
997     }
998     if (d->debug) {
999         time_t now = time(NULL);
1000         if (!d->last_write && d->last_reg == reg && d->last_val == ret) {
1001             d->repeat_count++;
1002             if (d->last_sec != now) {
1003                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1004                 d->last_sec = now;
1005                 d->repeat_count = 0;
1006             }
1007         } else {
1008             if (d->repeat_count) {
1009                 dprint(d, 2, "previous register op repeated %d times\n", d->repeat_count);
1010             }
1011             dprint(d, 2, "read  %-16s: 0x%x (%x)\n", reg->name, ret, rmask);
1012             d->last_write = 0;
1013             d->last_reg   = reg;
1014             d->last_val   = ret;
1015             d->last_sec   = now;
1016             d->repeat_count = 0;
1017         }
1018     }
1019     return ret;
1020 }
1021 
1022 static void intel_hda_regs_reset(IntelHDAState *d)
1023 {
1024     uint32_t *addr;
1025     int i;
1026 
1027     for (i = 0; i < sizeof(regtab)/sizeof(regtab[0]); i++) {
1028         if (regtab[i].name == NULL) {
1029             continue;
1030         }
1031         if (regtab[i].offset == 0) {
1032             continue;
1033         }
1034         addr = intel_hda_reg_addr(d, regtab + i);
1035         *addr = regtab[i].reset;
1036     }
1037 }
1038 
1039 /* --------------------------------------------------------------------- */
1040 
1041 static void intel_hda_mmio_writeb(void *opaque, hwaddr addr, uint32_t val)
1042 {
1043     IntelHDAState *d = opaque;
1044     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1045 
1046     intel_hda_reg_write(d, reg, val, 0xff);
1047 }
1048 
1049 static void intel_hda_mmio_writew(void *opaque, hwaddr addr, uint32_t val)
1050 {
1051     IntelHDAState *d = opaque;
1052     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1053 
1054     intel_hda_reg_write(d, reg, val, 0xffff);
1055 }
1056 
1057 static void intel_hda_mmio_writel(void *opaque, hwaddr addr, uint32_t val)
1058 {
1059     IntelHDAState *d = opaque;
1060     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1061 
1062     intel_hda_reg_write(d, reg, val, 0xffffffff);
1063 }
1064 
1065 static uint32_t intel_hda_mmio_readb(void *opaque, hwaddr addr)
1066 {
1067     IntelHDAState *d = opaque;
1068     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1069 
1070     return intel_hda_reg_read(d, reg, 0xff);
1071 }
1072 
1073 static uint32_t intel_hda_mmio_readw(void *opaque, hwaddr addr)
1074 {
1075     IntelHDAState *d = opaque;
1076     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1077 
1078     return intel_hda_reg_read(d, reg, 0xffff);
1079 }
1080 
1081 static uint32_t intel_hda_mmio_readl(void *opaque, hwaddr addr)
1082 {
1083     IntelHDAState *d = opaque;
1084     const IntelHDAReg *reg = intel_hda_reg_find(d, addr);
1085 
1086     return intel_hda_reg_read(d, reg, 0xffffffff);
1087 }
1088 
1089 static const MemoryRegionOps intel_hda_mmio_ops = {
1090     .old_mmio = {
1091         .read = {
1092             intel_hda_mmio_readb,
1093             intel_hda_mmio_readw,
1094             intel_hda_mmio_readl,
1095         },
1096         .write = {
1097             intel_hda_mmio_writeb,
1098             intel_hda_mmio_writew,
1099             intel_hda_mmio_writel,
1100         },
1101     },
1102     .endianness = DEVICE_NATIVE_ENDIAN,
1103 };
1104 
1105 /* --------------------------------------------------------------------- */
1106 
1107 static void intel_hda_reset(DeviceState *dev)
1108 {
1109     BusChild *kid;
1110     IntelHDAState *d = INTEL_HDA(dev);
1111     HDACodecDevice *cdev;
1112 
1113     intel_hda_regs_reset(d);
1114     d->wall_base_ns = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
1115 
1116     /* reset codecs */
1117     QTAILQ_FOREACH(kid, &d->codecs.qbus.children, sibling) {
1118         DeviceState *qdev = kid->child;
1119         cdev = DO_UPCAST(HDACodecDevice, qdev, qdev);
1120         device_reset(DEVICE(cdev));
1121         d->state_sts |= (1 << cdev->cad);
1122     }
1123     intel_hda_update_irq(d);
1124 }
1125 
1126 static int intel_hda_init(PCIDevice *pci)
1127 {
1128     IntelHDAState *d = INTEL_HDA(pci);
1129     uint8_t *conf = d->pci.config;
1130 
1131     d->name = object_get_typename(OBJECT(d));
1132 
1133     pci_config_set_interrupt_pin(conf, 1);
1134 
1135     /* HDCTL off 0x40 bit 0 selects signaling mode (1-HDA, 0 - Ac97) 18.1.19 */
1136     conf[0x40] = 0x01;
1137 
1138     memory_region_init_io(&d->mmio, OBJECT(d), &intel_hda_mmio_ops, d,
1139                           "intel-hda", 0x4000);
1140     pci_register_bar(&d->pci, 0, 0, &d->mmio);
1141     if (d->msi) {
1142         msi_init(&d->pci, 0x50, 1, true, false);
1143     }
1144 
1145     hda_codec_bus_init(DEVICE(pci), &d->codecs, sizeof(d->codecs),
1146                        intel_hda_response, intel_hda_xfer);
1147 
1148     return 0;
1149 }
1150 
1151 static void intel_hda_exit(PCIDevice *pci)
1152 {
1153     IntelHDAState *d = INTEL_HDA(pci);
1154 
1155     msi_uninit(&d->pci);
1156     memory_region_destroy(&d->mmio);
1157 }
1158 
1159 static int intel_hda_post_load(void *opaque, int version)
1160 {
1161     IntelHDAState* d = opaque;
1162     int i;
1163 
1164     dprint(d, 1, "%s\n", __FUNCTION__);
1165     for (i = 0; i < ARRAY_SIZE(d->st); i++) {
1166         if (d->st[i].ctl & 0x02) {
1167             intel_hda_parse_bdl(d, &d->st[i]);
1168         }
1169     }
1170     intel_hda_update_irq(d);
1171     return 0;
1172 }
1173 
1174 static const VMStateDescription vmstate_intel_hda_stream = {
1175     .name = "intel-hda-stream",
1176     .version_id = 1,
1177     .fields = (VMStateField []) {
1178         VMSTATE_UINT32(ctl, IntelHDAStream),
1179         VMSTATE_UINT32(lpib, IntelHDAStream),
1180         VMSTATE_UINT32(cbl, IntelHDAStream),
1181         VMSTATE_UINT32(lvi, IntelHDAStream),
1182         VMSTATE_UINT32(fmt, IntelHDAStream),
1183         VMSTATE_UINT32(bdlp_lbase, IntelHDAStream),
1184         VMSTATE_UINT32(bdlp_ubase, IntelHDAStream),
1185         VMSTATE_END_OF_LIST()
1186     }
1187 };
1188 
1189 static const VMStateDescription vmstate_intel_hda = {
1190     .name = "intel-hda",
1191     .version_id = 1,
1192     .post_load = intel_hda_post_load,
1193     .fields = (VMStateField []) {
1194         VMSTATE_PCI_DEVICE(pci, IntelHDAState),
1195 
1196         /* registers */
1197         VMSTATE_UINT32(g_ctl, IntelHDAState),
1198         VMSTATE_UINT32(wake_en, IntelHDAState),
1199         VMSTATE_UINT32(state_sts, IntelHDAState),
1200         VMSTATE_UINT32(int_ctl, IntelHDAState),
1201         VMSTATE_UINT32(int_sts, IntelHDAState),
1202         VMSTATE_UINT32(wall_clk, IntelHDAState),
1203         VMSTATE_UINT32(corb_lbase, IntelHDAState),
1204         VMSTATE_UINT32(corb_ubase, IntelHDAState),
1205         VMSTATE_UINT32(corb_rp, IntelHDAState),
1206         VMSTATE_UINT32(corb_wp, IntelHDAState),
1207         VMSTATE_UINT32(corb_ctl, IntelHDAState),
1208         VMSTATE_UINT32(corb_sts, IntelHDAState),
1209         VMSTATE_UINT32(corb_size, IntelHDAState),
1210         VMSTATE_UINT32(rirb_lbase, IntelHDAState),
1211         VMSTATE_UINT32(rirb_ubase, IntelHDAState),
1212         VMSTATE_UINT32(rirb_wp, IntelHDAState),
1213         VMSTATE_UINT32(rirb_cnt, IntelHDAState),
1214         VMSTATE_UINT32(rirb_ctl, IntelHDAState),
1215         VMSTATE_UINT32(rirb_sts, IntelHDAState),
1216         VMSTATE_UINT32(rirb_size, IntelHDAState),
1217         VMSTATE_UINT32(dp_lbase, IntelHDAState),
1218         VMSTATE_UINT32(dp_ubase, IntelHDAState),
1219         VMSTATE_UINT32(icw, IntelHDAState),
1220         VMSTATE_UINT32(irr, IntelHDAState),
1221         VMSTATE_UINT32(ics, IntelHDAState),
1222         VMSTATE_STRUCT_ARRAY(st, IntelHDAState, 8, 0,
1223                              vmstate_intel_hda_stream,
1224                              IntelHDAStream),
1225 
1226         /* additional state info */
1227         VMSTATE_UINT32(rirb_count, IntelHDAState),
1228         VMSTATE_INT64(wall_base_ns, IntelHDAState),
1229 
1230         VMSTATE_END_OF_LIST()
1231     }
1232 };
1233 
1234 static Property intel_hda_properties[] = {
1235     DEFINE_PROP_UINT32("debug", IntelHDAState, debug, 0),
1236     DEFINE_PROP_UINT32("msi", IntelHDAState, msi, 1),
1237     DEFINE_PROP_END_OF_LIST(),
1238 };
1239 
1240 static void intel_hda_class_init(ObjectClass *klass, void *data)
1241 {
1242     DeviceClass *dc = DEVICE_CLASS(klass);
1243     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1244 
1245     k->init = intel_hda_init;
1246     k->exit = intel_hda_exit;
1247     k->vendor_id = PCI_VENDOR_ID_INTEL;
1248     k->class_id = PCI_CLASS_MULTIMEDIA_HD_AUDIO;
1249     dc->reset = intel_hda_reset;
1250     dc->vmsd = &vmstate_intel_hda;
1251     dc->props = intel_hda_properties;
1252 }
1253 
1254 static void intel_hda_class_init_ich6(ObjectClass *klass, void *data)
1255 {
1256     DeviceClass *dc = DEVICE_CLASS(klass);
1257     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1258 
1259     k->device_id = 0x2668;
1260     k->revision = 1;
1261     set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
1262     dc->desc = "Intel HD Audio Controller (ich6)";
1263 }
1264 
1265 static void intel_hda_class_init_ich9(ObjectClass *klass, void *data)
1266 {
1267     DeviceClass *dc = DEVICE_CLASS(klass);
1268     PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
1269 
1270     k->device_id = 0x293e;
1271     k->revision = 3;
1272     set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
1273     dc->desc = "Intel HD Audio Controller (ich9)";
1274 }
1275 
1276 static const TypeInfo intel_hda_info = {
1277     .name          = TYPE_INTEL_HDA_GENERIC,
1278     .parent        = TYPE_PCI_DEVICE,
1279     .instance_size = sizeof(IntelHDAState),
1280     .class_init    = intel_hda_class_init,
1281     .abstract      = true,
1282 };
1283 
1284 static const TypeInfo intel_hda_info_ich6 = {
1285     .name          = "intel-hda",
1286     .parent        = TYPE_INTEL_HDA_GENERIC,
1287     .class_init    = intel_hda_class_init_ich6,
1288 };
1289 
1290 static const TypeInfo intel_hda_info_ich9 = {
1291     .name          = "ich9-intel-hda",
1292     .parent        = TYPE_INTEL_HDA_GENERIC,
1293     .class_init    = intel_hda_class_init_ich9,
1294 };
1295 
1296 static void hda_codec_device_class_init(ObjectClass *klass, void *data)
1297 {
1298     DeviceClass *k = DEVICE_CLASS(klass);
1299     k->init = hda_codec_dev_init;
1300     k->exit = hda_codec_dev_exit;
1301     set_bit(DEVICE_CATEGORY_SOUND, k->categories);
1302     k->bus_type = TYPE_HDA_BUS;
1303     k->props = hda_props;
1304 }
1305 
1306 static const TypeInfo hda_codec_device_type_info = {
1307     .name = TYPE_HDA_CODEC_DEVICE,
1308     .parent = TYPE_DEVICE,
1309     .instance_size = sizeof(HDACodecDevice),
1310     .abstract = true,
1311     .class_size = sizeof(HDACodecDeviceClass),
1312     .class_init = hda_codec_device_class_init,
1313 };
1314 
1315 /*
1316  * create intel hda controller with codec attached to it,
1317  * so '-soundhw hda' works.
1318  */
1319 static int intel_hda_and_codec_init(PCIBus *bus)
1320 {
1321     DeviceState *controller;
1322     BusState *hdabus;
1323     DeviceState *codec;
1324 
1325     controller = DEVICE(pci_create_simple(bus, -1, "intel-hda"));
1326     hdabus = QLIST_FIRST(&controller->child_bus);
1327     codec = qdev_create(hdabus, "hda-duplex");
1328     qdev_init_nofail(codec);
1329     return 0;
1330 }
1331 
1332 static void intel_hda_register_types(void)
1333 {
1334     type_register_static(&hda_codec_bus_info);
1335     type_register_static(&intel_hda_info);
1336     type_register_static(&intel_hda_info_ich6);
1337     type_register_static(&intel_hda_info_ich9);
1338     type_register_static(&hda_codec_device_type_info);
1339     pci_register_soundhw("hda", "Intel HD Audio", intel_hda_and_codec_init);
1340 }
1341 
1342 type_init(intel_hda_register_types)
1343