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hw: AC97: make it more QOMconventional
[qemu/ar7.git] / hw / audio / ac97.c
blobd799533aa9915461d6bd582e340dec7cbf409d58
1 /*
2 * Copyright (C) 2006 InnoTek Systemberatung GmbH
3 *
4 * This file is part of VirtualBox Open Source Edition (OSE), as
5 * available from http://www.virtualbox.org. This file is free software;
6 * you can redistribute it and/or modify it under the terms of the GNU
7 * General Public License as published by the Free Software Foundation,
8 * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
9 * distribution. VirtualBox OSE is distributed in the hope that it will
10 * be useful, but WITHOUT ANY WARRANTY of any kind.
11 *
12 * If you received this file as part of a commercial VirtualBox
13 * distribution, then only the terms of your commercial VirtualBox
14 * license agreement apply instead of the previous paragraph.
15 *
16 * Contributions after 2012-01-13 are licensed under the terms of the
17 * GNU GPL, version 2 or (at your option) any later version.
18 */
19
20 #include "qemu/osdep.h"
21 #include "hw/hw.h"
22 #include "hw/audio/soundhw.h"
23 #include "audio/audio.h"
24 #include "hw/pci/pci.h"
25 #include "sysemu/dma.h"
26
27 enum {
28 AC97_Reset = 0x00,
29 AC97_Master_Volume_Mute = 0x02,
30 AC97_Headphone_Volume_Mute = 0x04,
31 AC97_Master_Volume_Mono_Mute = 0x06,
32 AC97_Master_Tone_RL = 0x08,
33 AC97_PC_BEEP_Volume_Mute = 0x0A,
34 AC97_Phone_Volume_Mute = 0x0C,
35 AC97_Mic_Volume_Mute = 0x0E,
36 AC97_Line_In_Volume_Mute = 0x10,
37 AC97_CD_Volume_Mute = 0x12,
38 AC97_Video_Volume_Mute = 0x14,
39 AC97_Aux_Volume_Mute = 0x16,
40 AC97_PCM_Out_Volume_Mute = 0x18,
41 AC97_Record_Select = 0x1A,
42 AC97_Record_Gain_Mute = 0x1C,
43 AC97_Record_Gain_Mic_Mute = 0x1E,
44 AC97_General_Purpose = 0x20,
45 AC97_3D_Control = 0x22,
46 AC97_AC_97_RESERVED = 0x24,
47 AC97_Powerdown_Ctrl_Stat = 0x26,
48 AC97_Extended_Audio_ID = 0x28,
49 AC97_Extended_Audio_Ctrl_Stat = 0x2A,
50 AC97_PCM_Front_DAC_Rate = 0x2C,
51 AC97_PCM_Surround_DAC_Rate = 0x2E,
52 AC97_PCM_LFE_DAC_Rate = 0x30,
53 AC97_PCM_LR_ADC_Rate = 0x32,
54 AC97_MIC_ADC_Rate = 0x34,
55 AC97_6Ch_Vol_C_LFE_Mute = 0x36,
56 AC97_6Ch_Vol_L_R_Surround_Mute = 0x38,
57 AC97_Vendor_Reserved = 0x58,
58 AC97_Sigmatel_Analog = 0x6c, /* We emulate a Sigmatel codec */
59 AC97_Sigmatel_Dac2Invert = 0x6e, /* We emulate a Sigmatel codec */
60 AC97_Vendor_ID1 = 0x7c,
61 AC97_Vendor_ID2 = 0x7e
62 };
63
64 #define SOFT_VOLUME
65 #define SR_FIFOE 16 /* rwc */
66 #define SR_BCIS 8 /* rwc */
67 #define SR_LVBCI 4 /* rwc */
68 #define SR_CELV 2 /* ro */
69 #define SR_DCH 1 /* ro */
70 #define SR_VALID_MASK ((1 << 5) - 1)
71 #define SR_WCLEAR_MASK (SR_FIFOE | SR_BCIS | SR_LVBCI)
72 #define SR_RO_MASK (SR_DCH | SR_CELV)
73 #define SR_INT_MASK (SR_FIFOE | SR_BCIS | SR_LVBCI)
74
75 #define CR_IOCE 16 /* rw */
76 #define CR_FEIE 8 /* rw */
77 #define CR_LVBIE 4 /* rw */
78 #define CR_RR 2 /* rw */
79 #define CR_RPBM 1 /* rw */
80 #define CR_VALID_MASK ((1 << 5) - 1)
81 #define CR_DONT_CLEAR_MASK (CR_IOCE | CR_FEIE | CR_LVBIE)
82
83 #define GC_WR 4 /* rw */
84 #define GC_CR 2 /* rw */
85 #define GC_VALID_MASK ((1 << 6) - 1)
86
87 #define GS_MD3 (1<<17) /* rw */
88 #define GS_AD3 (1<<16) /* rw */
89 #define GS_RCS (1<<15) /* rwc */
90 #define GS_B3S12 (1<<14) /* ro */
91 #define GS_B2S12 (1<<13) /* ro */
92 #define GS_B1S12 (1<<12) /* ro */
93 #define GS_S1R1 (1<<11) /* rwc */
94 #define GS_S0R1 (1<<10) /* rwc */
95 #define GS_S1CR (1<<9) /* ro */
96 #define GS_S0CR (1<<8) /* ro */
97 #define GS_MINT (1<<7) /* ro */
98 #define GS_POINT (1<<6) /* ro */
99 #define GS_PIINT (1<<5) /* ro */
100 #define GS_RSRVD ((1<<4)|(1<<3))
101 #define GS_MOINT (1<<2) /* ro */
102 #define GS_MIINT (1<<1) /* ro */
103 #define GS_GSCI 1 /* rwc */
104 #define GS_RO_MASK (GS_B3S12| \
105 GS_B2S12| \
106 GS_B1S12| \
107 GS_S1CR| \
108 GS_S0CR| \
109 GS_MINT| \
110 GS_POINT| \
111 GS_PIINT| \
112 GS_RSRVD| \
113 GS_MOINT| \
114 GS_MIINT)
115 #define GS_VALID_MASK ((1 << 18) - 1)
116 #define GS_WCLEAR_MASK (GS_RCS|GS_S1R1|GS_S0R1|GS_GSCI)
117
118 #define BD_IOC (1<<31)
119 #define BD_BUP (1<<30)
120
121 #define EACS_VRA 1
122 #define EACS_VRM 8
123
124 #define MUTE_SHIFT 15
125
126 #define TYPE_AC97 "AC97"
127 #define AC97(obj) \
128 OBJECT_CHECK(AC97LinkState, (obj), TYPE_AC97)
129
130 #define REC_MASK 7
131 enum {
132 REC_MIC = 0,
133 REC_CD,
134 REC_VIDEO,
135 REC_AUX,
136 REC_LINE_IN,
137 REC_STEREO_MIX,
138 REC_MONO_MIX,
139 REC_PHONE
140 };
141
142 typedef struct BD {
143 uint32_t addr;
144 uint32_t ctl_len;
145 } BD;
146
147 typedef struct AC97BusMasterRegs {
148 uint32_t bdbar; /* rw 0 */
149 uint8_t civ; /* ro 0 */
150 uint8_t lvi; /* rw 0 */
151 uint16_t sr; /* rw 1 */
152 uint16_t picb; /* ro 0 */
153 uint8_t piv; /* ro 0 */
154 uint8_t cr; /* rw 0 */
155 unsigned int bd_valid;
156 BD bd;
157 } AC97BusMasterRegs;
158
159 typedef struct AC97LinkState {
160 PCIDevice dev;
161 QEMUSoundCard card;
162 uint32_t use_broken_id;
163 uint32_t glob_cnt;
164 uint32_t glob_sta;
165 uint32_t cas;
166 uint32_t last_samp;
167 AC97BusMasterRegs bm_regs[3];
168 uint8_t mixer_data[256];
169 SWVoiceIn *voice_pi;
170 SWVoiceOut *voice_po;
171 SWVoiceIn *voice_mc;
172 int invalid_freq[3];
173 uint8_t silence[128];
174 int bup_flag;
175 MemoryRegion io_nam;
176 MemoryRegion io_nabm;
177 } AC97LinkState;
178
179 enum {
180 BUP_SET = 1,
181 BUP_LAST = 2
182 };
183
184 #ifdef DEBUG_AC97
185 #define dolog(...) AUD_log ("ac97", __VA_ARGS__)
186 #else
187 #define dolog(...)
188 #endif
189
190 #define MKREGS(prefix, start) \
191 enum { \
192 prefix ## _BDBAR = start, \
193 prefix ## _CIV = start + 4, \
194 prefix ## _LVI = start + 5, \
195 prefix ## _SR = start + 6, \
196 prefix ## _PICB = start + 8, \
197 prefix ## _PIV = start + 10, \
198 prefix ## _CR = start + 11 \
199 }
200
201 enum {
202 PI_INDEX = 0,
203 PO_INDEX,
204 MC_INDEX,
205 LAST_INDEX
206 };
207
208 MKREGS (PI, PI_INDEX * 16);
209 MKREGS (PO, PO_INDEX * 16);
210 MKREGS (MC, MC_INDEX * 16);
211
212 enum {
213 GLOB_CNT = 0x2c,
214 GLOB_STA = 0x30,
215 CAS = 0x34
216 };
217
218 #define GET_BM(index) (((index) >> 4) & 3)
219
220 static void po_callback (void *opaque, int free);
221 static void pi_callback (void *opaque, int avail);
222 static void mc_callback (void *opaque, int avail);
223
224 static void warm_reset (AC97LinkState *s)
225 {
226 (void) s;
227 }
228
229 static void cold_reset (AC97LinkState * s)
230 {
231 (void) s;
232 }
233
234 static void fetch_bd (AC97LinkState *s, AC97BusMasterRegs *r)
235 {
236 uint8_t b[8];
237
238 pci_dma_read (&s->dev, r->bdbar + r->civ * 8, b, 8);
239 r->bd_valid = 1;
240 r->bd.addr = le32_to_cpu (*(uint32_t *) &b[0]) & ~3;
241 r->bd.ctl_len = le32_to_cpu (*(uint32_t *) &b[4]);
242 r->picb = r->bd.ctl_len & 0xffff;
243 dolog ("bd %2d addr=%#x ctl=%#06x len=%#x(%d bytes)\n",
244 r->civ, r->bd.addr, r->bd.ctl_len >> 16,
245 r->bd.ctl_len & 0xffff,
246 (r->bd.ctl_len & 0xffff) << 1);
247 }
248
249 static void update_sr (AC97LinkState *s, AC97BusMasterRegs *r, uint32_t new_sr)
250 {
251 int event = 0;
252 int level = 0;
253 uint32_t new_mask = new_sr & SR_INT_MASK;
254 uint32_t old_mask = r->sr & SR_INT_MASK;
255 uint32_t masks[] = {GS_PIINT, GS_POINT, GS_MINT};
256
257 if (new_mask ^ old_mask) {
258 /** @todo is IRQ deasserted when only one of status bits is cleared? */
259 if (!new_mask) {
260 event = 1;
261 level = 0;
262 }
263 else {
264 if ((new_mask & SR_LVBCI) && (r->cr & CR_LVBIE)) {
265 event = 1;
266 level = 1;
267 }
268 if ((new_mask & SR_BCIS) && (r->cr & CR_IOCE)) {
269 event = 1;
270 level = 1;
271 }
272 }
273 }
274
275 r->sr = new_sr;
276
277 dolog ("IOC%d LVB%d sr=%#x event=%d level=%d\n",
278 r->sr & SR_BCIS, r->sr & SR_LVBCI,
279 r->sr,
280 event, level);
281
282 if (!event)
283 return;
284
285 if (level) {
286 s->glob_sta |= masks[r - s->bm_regs];
287 dolog ("set irq level=1\n");
288 pci_irq_assert(&s->dev);
289 }
290 else {
291 s->glob_sta &= ~masks[r - s->bm_regs];
292 dolog ("set irq level=0\n");
293 pci_irq_deassert(&s->dev);
294 }
295 }
296
297 static void voice_set_active (AC97LinkState *s, int bm_index, int on)
298 {
299 switch (bm_index) {
300 case PI_INDEX:
301 AUD_set_active_in (s->voice_pi, on);
302 break;
303
304 case PO_INDEX:
305 AUD_set_active_out (s->voice_po, on);
306 break;
307
308 case MC_INDEX:
309 AUD_set_active_in (s->voice_mc, on);
310 break;
311
312 default:
313 AUD_log ("ac97", "invalid bm_index(%d) in voice_set_active", bm_index);
314 break;
315 }
316 }
317
318 static void reset_bm_regs (AC97LinkState *s, AC97BusMasterRegs *r)
319 {
320 dolog ("reset_bm_regs\n");
321 r->bdbar = 0;
322 r->civ = 0;
323 r->lvi = 0;
324 /** todo do we need to do that? */
325 update_sr (s, r, SR_DCH);
326 r->picb = 0;
327 r->piv = 0;
328 r->cr = r->cr & CR_DONT_CLEAR_MASK;
329 r->bd_valid = 0;
330
331 voice_set_active (s, r - s->bm_regs, 0);
332 memset (s->silence, 0, sizeof (s->silence));
333 }
334
335 static void mixer_store (AC97LinkState *s, uint32_t i, uint16_t v)
336 {
337 if (i + 2 > sizeof (s->mixer_data)) {
338 dolog ("mixer_store: index %d out of bounds %zd\n",
339 i, sizeof (s->mixer_data));
340 return;
341 }
342
343 s->mixer_data[i + 0] = v & 0xff;
344 s->mixer_data[i + 1] = v >> 8;
345 }
346
347 static uint16_t mixer_load (AC97LinkState *s, uint32_t i)
348 {
349 uint16_t val = 0xffff;
350
351 if (i + 2 > sizeof (s->mixer_data)) {
352 dolog ("mixer_load: index %d out of bounds %zd\n",
353 i, sizeof (s->mixer_data));
354 }
355 else {
356 val = s->mixer_data[i + 0] | (s->mixer_data[i + 1] << 8);
357 }
358
359 return val;
360 }
361
362 static void open_voice (AC97LinkState *s, int index, int freq)
363 {
364 struct audsettings as;
365
366 as.freq = freq;
367 as.nchannels = 2;
368 as.fmt = AUD_FMT_S16;
369 as.endianness = 0;
370
371 if (freq > 0) {
372 s->invalid_freq[index] = 0;
373 switch (index) {
374 case PI_INDEX:
375 s->voice_pi = AUD_open_in (
376 &s->card,
377 s->voice_pi,
378 "ac97.pi",
379 s,
380 pi_callback,
381 &as
382 );
383 break;
384
385 case PO_INDEX:
386 s->voice_po = AUD_open_out (
387 &s->card,
388 s->voice_po,
389 "ac97.po",
390 s,
391 po_callback,
392 &as
393 );
394 break;
395
396 case MC_INDEX:
397 s->voice_mc = AUD_open_in (
398 &s->card,
399 s->voice_mc,
400 "ac97.mc",
401 s,
402 mc_callback,
403 &as
404 );
405 break;
406 }
407 }
408 else {
409 s->invalid_freq[index] = freq;
410 switch (index) {
411 case PI_INDEX:
412 AUD_close_in (&s->card, s->voice_pi);
413 s->voice_pi = NULL;
414 break;
415
416 case PO_INDEX:
417 AUD_close_out (&s->card, s->voice_po);
418 s->voice_po = NULL;
419 break;
420
421 case MC_INDEX:
422 AUD_close_in (&s->card, s->voice_mc);
423 s->voice_mc = NULL;
424 break;
425 }
426 }
427 }
428
429 static void reset_voices (AC97LinkState *s, uint8_t active[LAST_INDEX])
430 {
431 uint16_t freq;
432
433 freq = mixer_load (s, AC97_PCM_LR_ADC_Rate);
434 open_voice (s, PI_INDEX, freq);
435 AUD_set_active_in (s->voice_pi, active[PI_INDEX]);
436
437 freq = mixer_load (s, AC97_PCM_Front_DAC_Rate);
438 open_voice (s, PO_INDEX, freq);
439 AUD_set_active_out (s->voice_po, active[PO_INDEX]);
440
441 freq = mixer_load (s, AC97_MIC_ADC_Rate);
442 open_voice (s, MC_INDEX, freq);
443 AUD_set_active_in (s->voice_mc, active[MC_INDEX]);
444 }
445
446 static void get_volume (uint16_t vol, uint16_t mask, int inverse,
447 int *mute, uint8_t *lvol, uint8_t *rvol)
448 {
449 *mute = (vol >> MUTE_SHIFT) & 1;
450 *rvol = (255 * (vol & mask)) / mask;
451 *lvol = (255 * ((vol >> 8) & mask)) / mask;
452
453 if (inverse) {
454 *rvol = 255 - *rvol;
455 *lvol = 255 - *lvol;
456 }
457 }
458
459 static void update_combined_volume_out (AC97LinkState *s)
460 {
461 uint8_t lvol, rvol, plvol, prvol;
462 int mute, pmute;
463
464 get_volume (mixer_load (s, AC97_Master_Volume_Mute), 0x3f, 1,
465 &mute, &lvol, &rvol);
466 get_volume (mixer_load (s, AC97_PCM_Out_Volume_Mute), 0x1f, 1,
467 &pmute, &plvol, &prvol);
468
469 mute = mute | pmute;
470 lvol = (lvol * plvol) / 255;
471 rvol = (rvol * prvol) / 255;
472
473 AUD_set_volume_out (s->voice_po, mute, lvol, rvol);
474 }
475
476 static void update_volume_in (AC97LinkState *s)
477 {
478 uint8_t lvol, rvol;
479 int mute;
480
481 get_volume (mixer_load (s, AC97_Record_Gain_Mute), 0x0f, 0,
482 &mute, &lvol, &rvol);
483
484 AUD_set_volume_in (s->voice_pi, mute, lvol, rvol);
485 }
486
487 static void set_volume (AC97LinkState *s, int index, uint32_t val)
488 {
489 switch (index) {
490 case AC97_Master_Volume_Mute:
491 val &= 0xbf3f;
492 mixer_store (s, index, val);
493 update_combined_volume_out (s);
494 break;
495 case AC97_PCM_Out_Volume_Mute:
496 val &= 0x9f1f;
497 mixer_store (s, index, val);
498 update_combined_volume_out (s);
499 break;
500 case AC97_Record_Gain_Mute:
501 val &= 0x8f0f;
502 mixer_store (s, index, val);
503 update_volume_in (s);
504 break;
505 }
506 }
507
508 static void record_select (AC97LinkState *s, uint32_t val)
509 {
510 uint8_t rs = val & REC_MASK;
511 uint8_t ls = (val >> 8) & REC_MASK;
512 mixer_store (s, AC97_Record_Select, rs | (ls << 8));
513 }
514
515 static void mixer_reset (AC97LinkState *s)
516 {
517 uint8_t active[LAST_INDEX];
518
519 dolog ("mixer_reset\n");
520 memset (s->mixer_data, 0, sizeof (s->mixer_data));
521 memset (active, 0, sizeof (active));
522 mixer_store (s, AC97_Reset , 0x0000); /* 6940 */
523 mixer_store (s, AC97_Headphone_Volume_Mute , 0x0000);
524 mixer_store (s, AC97_Master_Volume_Mono_Mute , 0x0000);
525 mixer_store (s, AC97_Master_Tone_RL, 0x0000);
526 mixer_store (s, AC97_PC_BEEP_Volume_Mute , 0x0000);
527 mixer_store (s, AC97_Phone_Volume_Mute , 0x0000);
528 mixer_store (s, AC97_Mic_Volume_Mute , 0x0000);
529 mixer_store (s, AC97_Line_In_Volume_Mute , 0x0000);
530 mixer_store (s, AC97_CD_Volume_Mute , 0x0000);
531 mixer_store (s, AC97_Video_Volume_Mute , 0x0000);
532 mixer_store (s, AC97_Aux_Volume_Mute , 0x0000);
533 mixer_store (s, AC97_Record_Gain_Mic_Mute , 0x0000);
534 mixer_store (s, AC97_General_Purpose , 0x0000);
535 mixer_store (s, AC97_3D_Control , 0x0000);
536 mixer_store (s, AC97_Powerdown_Ctrl_Stat , 0x000f);
537
538 /*
539 * Sigmatel 9700 (STAC9700)
540 */
541 mixer_store (s, AC97_Vendor_ID1 , 0x8384);
542 mixer_store (s, AC97_Vendor_ID2 , 0x7600); /* 7608 */
543
544 mixer_store (s, AC97_Extended_Audio_ID , 0x0809);
545 mixer_store (s, AC97_Extended_Audio_Ctrl_Stat, 0x0009);
546 mixer_store (s, AC97_PCM_Front_DAC_Rate , 0xbb80);
547 mixer_store (s, AC97_PCM_Surround_DAC_Rate , 0xbb80);
548 mixer_store (s, AC97_PCM_LFE_DAC_Rate , 0xbb80);
549 mixer_store (s, AC97_PCM_LR_ADC_Rate , 0xbb80);
550 mixer_store (s, AC97_MIC_ADC_Rate , 0xbb80);
551
552 record_select (s, 0);
553 set_volume (s, AC97_Master_Volume_Mute, 0x8000);
554 set_volume (s, AC97_PCM_Out_Volume_Mute, 0x8808);
555 set_volume (s, AC97_Record_Gain_Mute, 0x8808);
556
557 reset_voices (s, active);
558 }
559
560 /**
561 * Native audio mixer
562 * I/O Reads
563 */
564 static uint32_t nam_readb (void *opaque, uint32_t addr)
565 {
566 AC97LinkState *s = opaque;
567 dolog ("U nam readb %#x\n", addr);
568 s->cas = 0;
569 return ~0U;
570 }
571
572 static uint32_t nam_readw (void *opaque, uint32_t addr)
573 {
574 AC97LinkState *s = opaque;
575 uint32_t val = ~0U;
576 uint32_t index = addr;
577 s->cas = 0;
578 val = mixer_load (s, index);
579 return val;
580 }
581
582 static uint32_t nam_readl (void *opaque, uint32_t addr)
583 {
584 AC97LinkState *s = opaque;
585 dolog ("U nam readl %#x\n", addr);
586 s->cas = 0;
587 return ~0U;
588 }
589
590 /**
591 * Native audio mixer
592 * I/O Writes
593 */
594 static void nam_writeb (void *opaque, uint32_t addr, uint32_t val)
595 {
596 AC97LinkState *s = opaque;
597 dolog ("U nam writeb %#x <- %#x\n", addr, val);
598 s->cas = 0;
599 }
600
601 static void nam_writew (void *opaque, uint32_t addr, uint32_t val)
602 {
603 AC97LinkState *s = opaque;
604 uint32_t index = addr;
605 s->cas = 0;
606 switch (index) {
607 case AC97_Reset:
608 mixer_reset (s);
609 break;
610 case AC97_Powerdown_Ctrl_Stat:
611 val &= ~0x800f;
612 val |= mixer_load (s, index) & 0xf;
613 mixer_store (s, index, val);
614 break;
615 case AC97_PCM_Out_Volume_Mute:
616 case AC97_Master_Volume_Mute:
617 case AC97_Record_Gain_Mute:
618 set_volume (s, index, val);
619 break;
620 case AC97_Record_Select:
621 record_select (s, val);
622 break;
623 case AC97_Vendor_ID1:
624 case AC97_Vendor_ID2:
625 dolog ("Attempt to write vendor ID to %#x\n", val);
626 break;
627 case AC97_Extended_Audio_ID:
628 dolog ("Attempt to write extended audio ID to %#x\n", val);
629 break;
630 case AC97_Extended_Audio_Ctrl_Stat:
631 if (!(val & EACS_VRA)) {
632 mixer_store (s, AC97_PCM_Front_DAC_Rate, 0xbb80);
633 mixer_store (s, AC97_PCM_LR_ADC_Rate, 0xbb80);
634 open_voice (s, PI_INDEX, 48000);
635 open_voice (s, PO_INDEX, 48000);
636 }
637 if (!(val & EACS_VRM)) {
638 mixer_store (s, AC97_MIC_ADC_Rate, 0xbb80);
639 open_voice (s, MC_INDEX, 48000);
640 }
641 dolog ("Setting extended audio control to %#x\n", val);
642 mixer_store (s, AC97_Extended_Audio_Ctrl_Stat, val);
643 break;
644 case AC97_PCM_Front_DAC_Rate:
645 if (mixer_load (s, AC97_Extended_Audio_Ctrl_Stat) & EACS_VRA) {
646 mixer_store (s, index, val);
647 dolog ("Set front DAC rate to %d\n", val);
648 open_voice (s, PO_INDEX, val);
649 }
650 else {
651 dolog ("Attempt to set front DAC rate to %d, "
652 "but VRA is not set\n",
653 val);
654 }
655 break;
656 case AC97_MIC_ADC_Rate:
657 if (mixer_load (s, AC97_Extended_Audio_Ctrl_Stat) & EACS_VRM) {
658 mixer_store (s, index, val);
659 dolog ("Set MIC ADC rate to %d\n", val);
660 open_voice (s, MC_INDEX, val);
661 }
662 else {
663 dolog ("Attempt to set MIC ADC rate to %d, "
664 "but VRM is not set\n",
665 val);
666 }
667 break;
668 case AC97_PCM_LR_ADC_Rate:
669 if (mixer_load (s, AC97_Extended_Audio_Ctrl_Stat) & EACS_VRA) {
670 mixer_store (s, index, val);
671 dolog ("Set front LR ADC rate to %d\n", val);
672 open_voice (s, PI_INDEX, val);
673 }
674 else {
675 dolog ("Attempt to set LR ADC rate to %d, but VRA is not set\n",
676 val);
677 }
678 break;
679 case AC97_Headphone_Volume_Mute:
680 case AC97_Master_Volume_Mono_Mute:
681 case AC97_Master_Tone_RL:
682 case AC97_PC_BEEP_Volume_Mute:
683 case AC97_Phone_Volume_Mute:
684 case AC97_Mic_Volume_Mute:
685 case AC97_Line_In_Volume_Mute:
686 case AC97_CD_Volume_Mute:
687 case AC97_Video_Volume_Mute:
688 case AC97_Aux_Volume_Mute:
689 case AC97_Record_Gain_Mic_Mute:
690 case AC97_General_Purpose:
691 case AC97_3D_Control:
692 case AC97_Sigmatel_Analog:
693 case AC97_Sigmatel_Dac2Invert:
694 /* None of the features in these regs are emulated, so they are RO */
695 break;
696 default:
697 dolog ("U nam writew %#x <- %#x\n", addr, val);
698 mixer_store (s, index, val);
699 break;
700 }
701 }
702
703 static void nam_writel (void *opaque, uint32_t addr, uint32_t val)
704 {
705 AC97LinkState *s = opaque;
706 dolog ("U nam writel %#x <- %#x\n", addr, val);
707 s->cas = 0;
708 }
709
710 /**
711 * Native audio bus master
712 * I/O Reads
713 */
714 static uint32_t nabm_readb (void *opaque, uint32_t addr)
715 {
716 AC97LinkState *s = opaque;
717 AC97BusMasterRegs *r = NULL;
718 uint32_t index = addr;
719 uint32_t val = ~0U;
720
721 switch (index) {
722 case CAS:
723 dolog ("CAS %d\n", s->cas);
724 val = s->cas;
725 s->cas = 1;
726 break;
727 case PI_CIV:
728 case PO_CIV:
729 case MC_CIV:
730 r = &s->bm_regs[GET_BM (index)];
731 val = r->civ;
732 dolog ("CIV[%d] -> %#x\n", GET_BM (index), val);
733 break;
734 case PI_LVI:
735 case PO_LVI:
736 case MC_LVI:
737 r = &s->bm_regs[GET_BM (index)];
738 val = r->lvi;
739 dolog ("LVI[%d] -> %#x\n", GET_BM (index), val);
740 break;
741 case PI_PIV:
742 case PO_PIV:
743 case MC_PIV:
744 r = &s->bm_regs[GET_BM (index)];
745 val = r->piv;
746 dolog ("PIV[%d] -> %#x\n", GET_BM (index), val);
747 break;
748 case PI_CR:
749 case PO_CR:
750 case MC_CR:
751 r = &s->bm_regs[GET_BM (index)];
752 val = r->cr;
753 dolog ("CR[%d] -> %#x\n", GET_BM (index), val);
754 break;
755 case PI_SR:
756 case PO_SR:
757 case MC_SR:
758 r = &s->bm_regs[GET_BM (index)];
759 val = r->sr & 0xff;
760 dolog ("SRb[%d] -> %#x\n", GET_BM (index), val);
761 break;
762 default:
763 dolog ("U nabm readb %#x -> %#x\n", addr, val);
764 break;
765 }
766 return val;
767 }
768
769 static uint32_t nabm_readw (void *opaque, uint32_t addr)
770 {
771 AC97LinkState *s = opaque;
772 AC97BusMasterRegs *r = NULL;
773 uint32_t index = addr;
774 uint32_t val = ~0U;
775
776 switch (index) {
777 case PI_SR:
778 case PO_SR:
779 case MC_SR:
780 r = &s->bm_regs[GET_BM (index)];
781 val = r->sr;
782 dolog ("SR[%d] -> %#x\n", GET_BM (index), val);
783 break;
784 case PI_PICB:
785 case PO_PICB:
786 case MC_PICB:
787 r = &s->bm_regs[GET_BM (index)];
788 val = r->picb;
789 dolog ("PICB[%d] -> %#x\n", GET_BM (index), val);
790 break;
791 default:
792 dolog ("U nabm readw %#x -> %#x\n", addr, val);
793 break;
794 }
795 return val;
796 }
797
798 static uint32_t nabm_readl (void *opaque, uint32_t addr)
799 {
800 AC97LinkState *s = opaque;
801 AC97BusMasterRegs *r = NULL;
802 uint32_t index = addr;
803 uint32_t val = ~0U;
804
805 switch (index) {
806 case PI_BDBAR:
807 case PO_BDBAR:
808 case MC_BDBAR:
809 r = &s->bm_regs[GET_BM (index)];
810 val = r->bdbar;
811 dolog ("BMADDR[%d] -> %#x\n", GET_BM (index), val);
812 break;
813 case PI_CIV:
814 case PO_CIV:
815 case MC_CIV:
816 r = &s->bm_regs[GET_BM (index)];
817 val = r->civ | (r->lvi << 8) | (r->sr << 16);
818 dolog ("CIV LVI SR[%d] -> %#x, %#x, %#x\n", GET_BM (index),
819 r->civ, r->lvi, r->sr);
820 break;
821 case PI_PICB:
822 case PO_PICB:
823 case MC_PICB:
824 r = &s->bm_regs[GET_BM (index)];
825 val = r->picb | (r->piv << 16) | (r->cr << 24);
826 dolog ("PICB PIV CR[%d] -> %#x %#x %#x %#x\n", GET_BM (index),
827 val, r->picb, r->piv, r->cr);
828 break;
829 case GLOB_CNT:
830 val = s->glob_cnt;
831 dolog ("glob_cnt -> %#x\n", val);
832 break;
833 case GLOB_STA:
834 val = s->glob_sta | GS_S0CR;
835 dolog ("glob_sta -> %#x\n", val);
836 break;
837 default:
838 dolog ("U nabm readl %#x -> %#x\n", addr, val);
839 break;
840 }
841 return val;
842 }
843
844 /**
845 * Native audio bus master
846 * I/O Writes
847 */
848 static void nabm_writeb (void *opaque, uint32_t addr, uint32_t val)
849 {
850 AC97LinkState *s = opaque;
851 AC97BusMasterRegs *r = NULL;
852 uint32_t index = addr;
853 switch (index) {
854 case PI_LVI:
855 case PO_LVI:
856 case MC_LVI:
857 r = &s->bm_regs[GET_BM (index)];
858 if ((r->cr & CR_RPBM) && (r->sr & SR_DCH)) {
859 r->sr &= ~(SR_DCH | SR_CELV);
860 r->civ = r->piv;
861 r->piv = (r->piv + 1) % 32;
862 fetch_bd (s, r);
863 }
864 r->lvi = val % 32;
865 dolog ("LVI[%d] <- %#x\n", GET_BM (index), val);
866 break;
867 case PI_CR:
868 case PO_CR:
869 case MC_CR:
870 r = &s->bm_regs[GET_BM (index)];
871 if (val & CR_RR) {
872 reset_bm_regs (s, r);
873 }
874 else {
875 r->cr = val & CR_VALID_MASK;
876 if (!(r->cr & CR_RPBM)) {
877 voice_set_active (s, r - s->bm_regs, 0);
878 r->sr |= SR_DCH;
879 }
880 else {
881 r->civ = r->piv;
882 r->piv = (r->piv + 1) % 32;
883 fetch_bd (s, r);
884 r->sr &= ~SR_DCH;
885 voice_set_active (s, r - s->bm_regs, 1);
886 }
887 }
888 dolog ("CR[%d] <- %#x (cr %#x)\n", GET_BM (index), val, r->cr);
889 break;
890 case PI_SR:
891 case PO_SR:
892 case MC_SR:
893 r = &s->bm_regs[GET_BM (index)];
894 r->sr |= val & ~(SR_RO_MASK | SR_WCLEAR_MASK);
895 update_sr (s, r, r->sr & ~(val & SR_WCLEAR_MASK));
896 dolog ("SR[%d] <- %#x (sr %#x)\n", GET_BM (index), val, r->sr);
897 break;
898 default:
899 dolog ("U nabm writeb %#x <- %#x\n", addr, val);
900 break;
901 }
902 }
903
904 static void nabm_writew (void *opaque, uint32_t addr, uint32_t val)
905 {
906 AC97LinkState *s = opaque;
907 AC97BusMasterRegs *r = NULL;
908 uint32_t index = addr;
909 switch (index) {
910 case PI_SR:
911 case PO_SR:
912 case MC_SR:
913 r = &s->bm_regs[GET_BM (index)];
914 r->sr |= val & ~(SR_RO_MASK | SR_WCLEAR_MASK);
915 update_sr (s, r, r->sr & ~(val & SR_WCLEAR_MASK));
916 dolog ("SR[%d] <- %#x (sr %#x)\n", GET_BM (index), val, r->sr);
917 break;
918 default:
919 dolog ("U nabm writew %#x <- %#x\n", addr, val);
920 break;
921 }
922 }
923
924 static void nabm_writel (void *opaque, uint32_t addr, uint32_t val)
925 {
926 AC97LinkState *s = opaque;
927 AC97BusMasterRegs *r = NULL;
928 uint32_t index = addr;
929 switch (index) {
930 case PI_BDBAR:
931 case PO_BDBAR:
932 case MC_BDBAR:
933 r = &s->bm_regs[GET_BM (index)];
934 r->bdbar = val & ~3;
935 dolog ("BDBAR[%d] <- %#x (bdbar %#x)\n",
936 GET_BM (index), val, r->bdbar);
937 break;
938 case GLOB_CNT:
939 if (val & GC_WR)
940 warm_reset (s);
941 if (val & GC_CR)
942 cold_reset (s);
943 if (!(val & (GC_WR | GC_CR)))
944 s->glob_cnt = val & GC_VALID_MASK;
945 dolog ("glob_cnt <- %#x (glob_cnt %#x)\n", val, s->glob_cnt);
946 break;
947 case GLOB_STA:
948 s->glob_sta &= ~(val & GS_WCLEAR_MASK);
949 s->glob_sta |= (val & ~(GS_WCLEAR_MASK | GS_RO_MASK)) & GS_VALID_MASK;
950 dolog ("glob_sta <- %#x (glob_sta %#x)\n", val, s->glob_sta);
951 break;
952 default:
953 dolog ("U nabm writel %#x <- %#x\n", addr, val);
954 break;
955 }
956 }
957
958 static int write_audio (AC97LinkState *s, AC97BusMasterRegs *r,
959 int max, int *stop)
960 {
961 uint8_t tmpbuf[4096];
962 uint32_t addr = r->bd.addr;
963 uint32_t temp = r->picb << 1;
964 uint32_t written = 0;
965 int to_copy = 0;
966 temp = audio_MIN (temp, max);
967
968 if (!temp) {
969 *stop = 1;
970 return 0;
971 }
972
973 while (temp) {
974 int copied;
975 to_copy = audio_MIN (temp, sizeof (tmpbuf));
976 pci_dma_read (&s->dev, addr, tmpbuf, to_copy);
977 copied = AUD_write (s->voice_po, tmpbuf, to_copy);
978 dolog ("write_audio max=%x to_copy=%x copied=%x\n",
979 max, to_copy, copied);
980 if (!copied) {
981 *stop = 1;
982 break;
983 }
984 temp -= copied;
985 addr += copied;
986 written += copied;
987 }
988
989 if (!temp) {
990 if (to_copy < 4) {
991 dolog ("whoops\n");
992 s->last_samp = 0;
993 }
994 else {
995 s->last_samp = *(uint32_t *) &tmpbuf[to_copy - 4];
996 }
997 }
998
999 r->bd.addr = addr;
1000 return written;
1001 }
1002
1003 static void write_bup (AC97LinkState *s, int elapsed)
1004 {
1005 dolog ("write_bup\n");
1006 if (!(s->bup_flag & BUP_SET)) {
1007 if (s->bup_flag & BUP_LAST) {
1008 int i;
1009 uint8_t *p = s->silence;
1010 for (i = 0; i < sizeof (s->silence) / 4; i++, p += 4) {
1011 *(uint32_t *) p = s->last_samp;
1012 }
1013 }
1014 else {
1015 memset (s->silence, 0, sizeof (s->silence));
1016 }
1017 s->bup_flag |= BUP_SET;
1018 }
1019
1020 while (elapsed) {
1021 int temp = audio_MIN (elapsed, sizeof (s->silence));
1022 while (temp) {
1023 int copied = AUD_write (s->voice_po, s->silence, temp);
1024 if (!copied)
1025 return;
1026 temp -= copied;
1027 elapsed -= copied;
1028 }
1029 }
1030 }
1031
1032 static int read_audio (AC97LinkState *s, AC97BusMasterRegs *r,
1033 int max, int *stop)
1034 {
1035 uint8_t tmpbuf[4096];
1036 uint32_t addr = r->bd.addr;
1037 uint32_t temp = r->picb << 1;
1038 uint32_t nread = 0;
1039 int to_copy = 0;
1040 SWVoiceIn *voice = (r - s->bm_regs) == MC_INDEX ? s->voice_mc : s->voice_pi;
1041
1042 temp = audio_MIN (temp, max);
1043
1044 if (!temp) {
1045 *stop = 1;
1046 return 0;
1047 }
1048
1049 while (temp) {
1050 int acquired;
1051 to_copy = audio_MIN (temp, sizeof (tmpbuf));
1052 acquired = AUD_read (voice, tmpbuf, to_copy);
1053 if (!acquired) {
1054 *stop = 1;
1055 break;
1056 }
1057 pci_dma_write (&s->dev, addr, tmpbuf, acquired);
1058 temp -= acquired;
1059 addr += acquired;
1060 nread += acquired;
1061 }
1062
1063 r->bd.addr = addr;
1064 return nread;
1065 }
1066
1067 static void transfer_audio (AC97LinkState *s, int index, int elapsed)
1068 {
1069 AC97BusMasterRegs *r = &s->bm_regs[index];
1070 int stop = 0;
1071
1072 if (s->invalid_freq[index]) {
1073 AUD_log ("ac97", "attempt to use voice %d with invalid frequency %d\n",
1074 index, s->invalid_freq[index]);
1075 return;
1076 }
1077
1078 if (r->sr & SR_DCH) {
1079 if (r->cr & CR_RPBM) {
1080 switch (index) {
1081 case PO_INDEX:
1082 write_bup (s, elapsed);
1083 break;
1084 }
1085 }
1086 return;
1087 }
1088
1089 while ((elapsed >> 1) && !stop) {
1090 int temp;
1091
1092 if (!r->bd_valid) {
1093 dolog ("invalid bd\n");
1094 fetch_bd (s, r);
1095 }
1096
1097 if (!r->picb) {
1098 dolog ("fresh bd %d is empty %#x %#x\n",
1099 r->civ, r->bd.addr, r->bd.ctl_len);
1100 if (r->civ == r->lvi) {
1101 r->sr |= SR_DCH; /* CELV? */
1102 s->bup_flag = 0;
1103 break;
1104 }
1105 r->sr &= ~SR_CELV;
1106 r->civ = r->piv;
1107 r->piv = (r->piv + 1) % 32;
1108 fetch_bd (s, r);
1109 return;
1110 }
1111
1112 switch (index) {
1113 case PO_INDEX:
1114 temp = write_audio (s, r, elapsed, &stop);
1115 elapsed -= temp;
1116 r->picb -= (temp >> 1);
1117 break;
1118
1119 case PI_INDEX:
1120 case MC_INDEX:
1121 temp = read_audio (s, r, elapsed, &stop);
1122 elapsed -= temp;
1123 r->picb -= (temp >> 1);
1124 break;
1125 }
1126
1127 if (!r->picb) {
1128 uint32_t new_sr = r->sr & ~SR_CELV;
1129
1130 if (r->bd.ctl_len & BD_IOC) {
1131 new_sr |= SR_BCIS;
1132 }
1133
1134 if (r->civ == r->lvi) {
1135 dolog ("Underrun civ (%d) == lvi (%d)\n", r->civ, r->lvi);
1136
1137 new_sr |= SR_LVBCI | SR_DCH | SR_CELV;
1138 stop = 1;
1139 s->bup_flag = (r->bd.ctl_len & BD_BUP) ? BUP_LAST : 0;
1140 }
1141 else {
1142 r->civ = r->piv;
1143 r->piv = (r->piv + 1) % 32;
1144 fetch_bd (s, r);
1145 }
1146
1147 update_sr (s, r, new_sr);
1148 }
1149 }
1150 }
1151
1152 static void pi_callback (void *opaque, int avail)
1153 {
1154 transfer_audio (opaque, PI_INDEX, avail);
1155 }
1156
1157 static void mc_callback (void *opaque, int avail)
1158 {
1159 transfer_audio (opaque, MC_INDEX, avail);
1160 }
1161
1162 static void po_callback (void *opaque, int free)
1163 {
1164 transfer_audio (opaque, PO_INDEX, free);
1165 }
1166
1167 static const VMStateDescription vmstate_ac97_bm_regs = {
1168 .name = "ac97_bm_regs",
1169 .version_id = 1,
1170 .minimum_version_id = 1,
1171 .fields = (VMStateField[]) {
1172 VMSTATE_UINT32 (bdbar, AC97BusMasterRegs),
1173 VMSTATE_UINT8 (civ, AC97BusMasterRegs),
1174 VMSTATE_UINT8 (lvi, AC97BusMasterRegs),
1175 VMSTATE_UINT16 (sr, AC97BusMasterRegs),
1176 VMSTATE_UINT16 (picb, AC97BusMasterRegs),
1177 VMSTATE_UINT8 (piv, AC97BusMasterRegs),
1178 VMSTATE_UINT8 (cr, AC97BusMasterRegs),
1179 VMSTATE_UINT32 (bd_valid, AC97BusMasterRegs),
1180 VMSTATE_UINT32 (bd.addr, AC97BusMasterRegs),
1181 VMSTATE_UINT32 (bd.ctl_len, AC97BusMasterRegs),
1182 VMSTATE_END_OF_LIST ()
1183 }
1184 };
1185
1186 static int ac97_post_load (void *opaque, int version_id)
1187 {
1188 uint8_t active[LAST_INDEX];
1189 AC97LinkState *s = opaque;
1190
1191 record_select (s, mixer_load (s, AC97_Record_Select));
1192 set_volume (s, AC97_Master_Volume_Mute,
1193 mixer_load (s, AC97_Master_Volume_Mute));
1194 set_volume (s, AC97_PCM_Out_Volume_Mute,
1195 mixer_load (s, AC97_PCM_Out_Volume_Mute));
1196 set_volume (s, AC97_Record_Gain_Mute,
1197 mixer_load (s, AC97_Record_Gain_Mute));
1198
1199 active[PI_INDEX] = !!(s->bm_regs[PI_INDEX].cr & CR_RPBM);
1200 active[PO_INDEX] = !!(s->bm_regs[PO_INDEX].cr & CR_RPBM);
1201 active[MC_INDEX] = !!(s->bm_regs[MC_INDEX].cr & CR_RPBM);
1202 reset_voices (s, active);
1203
1204 s->bup_flag = 0;
1205 s->last_samp = 0;
1206 return 0;
1207 }
1208
1209 static bool is_version_2 (void *opaque, int version_id)
1210 {
1211 return version_id == 2;
1212 }
1213
1214 static const VMStateDescription vmstate_ac97 = {
1215 .name = "ac97",
1216 .version_id = 3,
1217 .minimum_version_id = 2,
1218 .post_load = ac97_post_load,
1219 .fields = (VMStateField[]) {
1220 VMSTATE_PCI_DEVICE (dev, AC97LinkState),
1221 VMSTATE_UINT32 (glob_cnt, AC97LinkState),
1222 VMSTATE_UINT32 (glob_sta, AC97LinkState),
1223 VMSTATE_UINT32 (cas, AC97LinkState),
1224 VMSTATE_STRUCT_ARRAY (bm_regs, AC97LinkState, 3, 1,
1225 vmstate_ac97_bm_regs, AC97BusMasterRegs),
1226 VMSTATE_BUFFER (mixer_data, AC97LinkState),
1227 VMSTATE_UNUSED_TEST (is_version_2, 3),
1228 VMSTATE_END_OF_LIST ()
1229 }
1230 };
1231
1232 static uint64_t nam_read(void *opaque, hwaddr addr, unsigned size)
1233 {
1234 if ((addr / size) > 256) {
1235 return -1;
1236 }
1237
1238 switch (size) {
1239 case 1:
1240 return nam_readb(opaque, addr);
1241 case 2:
1242 return nam_readw(opaque, addr);
1243 case 4:
1244 return nam_readl(opaque, addr);
1245 default:
1246 return -1;
1247 }
1248 }
1249
1250 static void nam_write(void *opaque, hwaddr addr, uint64_t val,
1251 unsigned size)
1252 {
1253 if ((addr / size) > 256) {
1254 return;
1255 }
1256
1257 switch (size) {
1258 case 1:
1259 nam_writeb(opaque, addr, val);
1260 break;
1261 case 2:
1262 nam_writew(opaque, addr, val);
1263 break;
1264 case 4:
1265 nam_writel(opaque, addr, val);
1266 break;
1267 }
1268 }
1269
1270 static const MemoryRegionOps ac97_io_nam_ops = {
1271 .read = nam_read,
1272 .write = nam_write,
1273 .impl = {
1274 .min_access_size = 1,
1275 .max_access_size = 4,
1276 },
1277 .endianness = DEVICE_LITTLE_ENDIAN,
1278 };
1279
1280 static uint64_t nabm_read(void *opaque, hwaddr addr, unsigned size)
1281 {
1282 if ((addr / size) > 64) {
1283 return -1;
1284 }
1285
1286 switch (size) {
1287 case 1:
1288 return nabm_readb(opaque, addr);
1289 case 2:
1290 return nabm_readw(opaque, addr);
1291 case 4:
1292 return nabm_readl(opaque, addr);
1293 default:
1294 return -1;
1295 }
1296 }
1297
1298 static void nabm_write(void *opaque, hwaddr addr, uint64_t val,
1299 unsigned size)
1300 {
1301 if ((addr / size) > 64) {
1302 return;
1303 }
1304
1305 switch (size) {
1306 case 1:
1307 nabm_writeb(opaque, addr, val);
1308 break;
1309 case 2:
1310 nabm_writew(opaque, addr, val);
1311 break;
1312 case 4:
1313 nabm_writel(opaque, addr, val);
1314 break;
1315 }
1316 }
1317
1318
1319 static const MemoryRegionOps ac97_io_nabm_ops = {
1320 .read = nabm_read,
1321 .write = nabm_write,
1322 .impl = {
1323 .min_access_size = 1,
1324 .max_access_size = 4,
1325 },
1326 .endianness = DEVICE_LITTLE_ENDIAN,
1327 };
1328
1329 static void ac97_on_reset (DeviceState *dev)
1330 {
1331 AC97LinkState *s = container_of(dev, AC97LinkState, dev.qdev);
1332
1333 reset_bm_regs (s, &s->bm_regs[0]);
1334 reset_bm_regs (s, &s->bm_regs[1]);
1335 reset_bm_regs (s, &s->bm_regs[2]);
1336
1337 /*
1338 * Reset the mixer too. The Windows XP driver seems to rely on
1339 * this. At least it wants to read the vendor id before it resets
1340 * the codec manually.
1341 */
1342 mixer_reset (s);
1343 }
1344
1345 static void ac97_realize(PCIDevice *dev, Error **errp)
1346 {
1347 AC97LinkState *s = AC97(dev);
1348 uint8_t *c = s->dev.config;
1349
1350 /* TODO: no need to override */
1351 c[PCI_COMMAND] = 0x00; /* pcicmd pci command rw, ro */
1352 c[PCI_COMMAND + 1] = 0x00;
1353
1354 /* TODO: */
1355 c[PCI_STATUS] = PCI_STATUS_FAST_BACK; /* pcists pci status rwc, ro */
1356 c[PCI_STATUS + 1] = PCI_STATUS_DEVSEL_MEDIUM >> 8;
1357
1358 c[PCI_CLASS_PROG] = 0x00; /* pi programming interface ro */
1359
1360 /* TODO set when bar is registered. no need to override. */
1361 /* nabmar native audio mixer base address rw */
1362 c[PCI_BASE_ADDRESS_0] = PCI_BASE_ADDRESS_SPACE_IO;
1363 c[PCI_BASE_ADDRESS_0 + 1] = 0x00;
1364 c[PCI_BASE_ADDRESS_0 + 2] = 0x00;
1365 c[PCI_BASE_ADDRESS_0 + 3] = 0x00;
1366
1367 /* TODO set when bar is registered. no need to override. */
1368 /* nabmbar native audio bus mastering base address rw */
1369 c[PCI_BASE_ADDRESS_0 + 4] = PCI_BASE_ADDRESS_SPACE_IO;
1370 c[PCI_BASE_ADDRESS_0 + 5] = 0x00;
1371 c[PCI_BASE_ADDRESS_0 + 6] = 0x00;
1372 c[PCI_BASE_ADDRESS_0 + 7] = 0x00;
1373
1374 if (s->use_broken_id) {
1375 c[PCI_SUBSYSTEM_VENDOR_ID] = 0x86;
1376 c[PCI_SUBSYSTEM_VENDOR_ID + 1] = 0x80;
1377 c[PCI_SUBSYSTEM_ID] = 0x00;
1378 c[PCI_SUBSYSTEM_ID + 1] = 0x00;
1379 }
1380
1381 c[PCI_INTERRUPT_LINE] = 0x00; /* intr_ln interrupt line rw */
1382 c[PCI_INTERRUPT_PIN] = 0x01; /* intr_pn interrupt pin ro */
1383
1384 memory_region_init_io (&s->io_nam, OBJECT(s), &ac97_io_nam_ops, s,
1385 "ac97-nam", 1024);
1386 memory_region_init_io (&s->io_nabm, OBJECT(s), &ac97_io_nabm_ops, s,
1387 "ac97-nabm", 256);
1388 pci_register_bar (&s->dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->io_nam);
1389 pci_register_bar (&s->dev, 1, PCI_BASE_ADDRESS_SPACE_IO, &s->io_nabm);
1390 AUD_register_card ("ac97", &s->card);
1391 ac97_on_reset (&s->dev.qdev);
1392 }
1393
1394 static void ac97_exit(PCIDevice *dev)
1395 {
1396 AC97LinkState *s = AC97(dev);
1397
1398 AUD_close_in(&s->card, s->voice_pi);
1399 AUD_close_out(&s->card, s->voice_po);
1400 AUD_close_in(&s->card, s->voice_mc);
1401 AUD_remove_card(&s->card);
1402 }
1403
1404 static int ac97_init (PCIBus *bus)
1405 {
1406 pci_create_simple(bus, -1, TYPE_AC97);
1407 return 0;
1408 }
1409
1410 static Property ac97_properties[] = {
1411 DEFINE_PROP_UINT32 ("use_broken_id", AC97LinkState, use_broken_id, 0),
1412 DEFINE_PROP_END_OF_LIST (),
1413 };
1414
1415 static void ac97_class_init (ObjectClass *klass, void *data)
1416 {
1417 DeviceClass *dc = DEVICE_CLASS (klass);
1418 PCIDeviceClass *k = PCI_DEVICE_CLASS (klass);
1419
1420 k->realize = ac97_realize;
1421 k->exit = ac97_exit;
1422 k->vendor_id = PCI_VENDOR_ID_INTEL;
1423 k->device_id = PCI_DEVICE_ID_INTEL_82801AA_5;
1424 k->revision = 0x01;
1425 k->class_id = PCI_CLASS_MULTIMEDIA_AUDIO;
1426 set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
1427 dc->desc = "Intel 82801AA AC97 Audio";
1428 dc->vmsd = &vmstate_ac97;
1429 dc->props = ac97_properties;
1430 dc->reset = ac97_on_reset;
1431 }
1432
1433 static const TypeInfo ac97_info = {
1434 .name = TYPE_AC97,
1435 .parent = TYPE_PCI_DEVICE,
1436 .instance_size = sizeof (AC97LinkState),
1437 .class_init = ac97_class_init,
1438 .interfaces = (InterfaceInfo[]) {
1439 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
1440 { },
1441 },
1442 };
1443
1444 static void ac97_register_types (void)
1445 {
1446 type_register_static (&ac97_info);
1447 pci_register_soundhw("ac97", "Intel 82801AA AC97 Audio", ac97_init);
1448 }
1449
1450 type_init (ac97_register_types)
AR7 emulation for QEMU