2 * Copyright (C) 2006 InnoTek Systemberatung GmbH
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.
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.
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.
20 #include "qemu/osdep.h"
22 #include "hw/audio/soundhw.h"
23 #include "audio/audio.h"
24 #include "hw/pci/pci.h"
25 #include "migration/vmstate.h"
26 #include "qemu/module.h"
27 #include "sysemu/dma.h"
31 AC97_Master_Volume_Mute = 0x02,
32 AC97_Headphone_Volume_Mute = 0x04,
33 AC97_Master_Volume_Mono_Mute = 0x06,
34 AC97_Master_Tone_RL = 0x08,
35 AC97_PC_BEEP_Volume_Mute = 0x0A,
36 AC97_Phone_Volume_Mute = 0x0C,
37 AC97_Mic_Volume_Mute = 0x0E,
38 AC97_Line_In_Volume_Mute = 0x10,
39 AC97_CD_Volume_Mute = 0x12,
40 AC97_Video_Volume_Mute = 0x14,
41 AC97_Aux_Volume_Mute = 0x16,
42 AC97_PCM_Out_Volume_Mute = 0x18,
43 AC97_Record_Select = 0x1A,
44 AC97_Record_Gain_Mute = 0x1C,
45 AC97_Record_Gain_Mic_Mute = 0x1E,
46 AC97_General_Purpose = 0x20,
47 AC97_3D_Control = 0x22,
48 AC97_AC_97_RESERVED = 0x24,
49 AC97_Powerdown_Ctrl_Stat = 0x26,
50 AC97_Extended_Audio_ID = 0x28,
51 AC97_Extended_Audio_Ctrl_Stat = 0x2A,
52 AC97_PCM_Front_DAC_Rate = 0x2C,
53 AC97_PCM_Surround_DAC_Rate = 0x2E,
54 AC97_PCM_LFE_DAC_Rate = 0x30,
55 AC97_PCM_LR_ADC_Rate = 0x32,
56 AC97_MIC_ADC_Rate = 0x34,
57 AC97_6Ch_Vol_C_LFE_Mute = 0x36,
58 AC97_6Ch_Vol_L_R_Surround_Mute = 0x38,
59 AC97_Vendor_Reserved = 0x58,
60 AC97_Sigmatel_Analog = 0x6c, /* We emulate a Sigmatel codec */
61 AC97_Sigmatel_Dac2Invert = 0x6e, /* We emulate a Sigmatel codec */
62 AC97_Vendor_ID1 = 0x7c,
63 AC97_Vendor_ID2 = 0x7e
67 #define SR_FIFOE 16 /* rwc */
68 #define SR_BCIS 8 /* rwc */
69 #define SR_LVBCI 4 /* rwc */
70 #define SR_CELV 2 /* ro */
71 #define SR_DCH 1 /* ro */
72 #define SR_VALID_MASK ((1 << 5) - 1)
73 #define SR_WCLEAR_MASK (SR_FIFOE | SR_BCIS | SR_LVBCI)
74 #define SR_RO_MASK (SR_DCH | SR_CELV)
75 #define SR_INT_MASK (SR_FIFOE | SR_BCIS | SR_LVBCI)
77 #define CR_IOCE 16 /* rw */
78 #define CR_FEIE 8 /* rw */
79 #define CR_LVBIE 4 /* rw */
80 #define CR_RR 2 /* rw */
81 #define CR_RPBM 1 /* rw */
82 #define CR_VALID_MASK ((1 << 5) - 1)
83 #define CR_DONT_CLEAR_MASK (CR_IOCE | CR_FEIE | CR_LVBIE)
85 #define GC_WR 4 /* rw */
86 #define GC_CR 2 /* rw */
87 #define GC_VALID_MASK ((1 << 6) - 1)
89 #define GS_MD3 (1<<17) /* rw */
90 #define GS_AD3 (1<<16) /* rw */
91 #define GS_RCS (1<<15) /* rwc */
92 #define GS_B3S12 (1<<14) /* ro */
93 #define GS_B2S12 (1<<13) /* ro */
94 #define GS_B1S12 (1<<12) /* ro */
95 #define GS_S1R1 (1<<11) /* rwc */
96 #define GS_S0R1 (1<<10) /* rwc */
97 #define GS_S1CR (1<<9) /* ro */
98 #define GS_S0CR (1<<8) /* ro */
99 #define GS_MINT (1<<7) /* ro */
100 #define GS_POINT (1<<6) /* ro */
101 #define GS_PIINT (1<<5) /* ro */
102 #define GS_RSRVD ((1<<4)|(1<<3))
103 #define GS_MOINT (1<<2) /* ro */
104 #define GS_MIINT (1<<1) /* ro */
105 #define GS_GSCI 1 /* rwc */
106 #define GS_RO_MASK (GS_B3S12| \
117 #define GS_VALID_MASK ((1 << 18) - 1)
118 #define GS_WCLEAR_MASK (GS_RCS|GS_S1R1|GS_S0R1|GS_GSCI)
120 #define BD_IOC (1<<31)
121 #define BD_BUP (1<<30)
126 #define MUTE_SHIFT 15
128 #define TYPE_AC97 "AC97"
130 OBJECT_CHECK(AC97LinkState, (obj), TYPE_AC97)
149 typedef struct AC97BusMasterRegs {
150 uint32_t bdbar; /* rw 0 */
151 uint8_t civ; /* ro 0 */
152 uint8_t lvi; /* rw 0 */
153 uint16_t sr; /* rw 1 */
154 uint16_t picb; /* ro 0 */
155 uint8_t piv; /* ro 0 */
156 uint8_t cr; /* rw 0 */
157 unsigned int bd_valid;
161 typedef struct AC97LinkState {
164 uint32_t use_broken_id;
169 AC97BusMasterRegs bm_regs[3];
170 uint8_t mixer_data[256];
172 SWVoiceOut *voice_po;
175 uint8_t silence[128];
178 MemoryRegion io_nabm;
187 #define dolog(...) AUD_log ("ac97", __VA_ARGS__)
192 #define MKREGS(prefix, start) \
194 prefix ## _BDBAR = start, \
195 prefix ## _CIV = start + 4, \
196 prefix ## _LVI = start + 5, \
197 prefix ## _SR = start + 6, \
198 prefix ## _PICB = start + 8, \
199 prefix ## _PIV = start + 10, \
200 prefix ## _CR = start + 11 \
210 MKREGS (PI, PI_INDEX * 16);
211 MKREGS (PO, PO_INDEX * 16);
212 MKREGS (MC, MC_INDEX * 16);
220 #define GET_BM(index) (((index) >> 4) & 3)
222 static void po_callback (void *opaque, int free);
223 static void pi_callback (void *opaque, int avail);
224 static void mc_callback (void *opaque, int avail);
226 static void warm_reset (AC97LinkState *s)
231 static void cold_reset (AC97LinkState * s)
236 static void fetch_bd (AC97LinkState *s, AC97BusMasterRegs *r)
240 pci_dma_read (&s->dev, r->bdbar + r->civ * 8, b, 8);
242 r->bd.addr = le32_to_cpu (*(uint32_t *) &b[0]) & ~3;
243 r->bd.ctl_len = le32_to_cpu (*(uint32_t *) &b[4]);
244 r->picb = r->bd.ctl_len & 0xffff;
245 dolog ("bd %2d addr=%#x ctl=%#06x len=%#x(%d bytes)\n",
246 r->civ, r->bd.addr, r->bd.ctl_len >> 16,
247 r->bd.ctl_len & 0xffff,
248 (r->bd.ctl_len & 0xffff) << 1);
251 static void update_sr (AC97LinkState *s, AC97BusMasterRegs *r, uint32_t new_sr)
255 uint32_t new_mask = new_sr & SR_INT_MASK;
256 uint32_t old_mask = r->sr & SR_INT_MASK;
257 uint32_t masks[] = {GS_PIINT, GS_POINT, GS_MINT};
259 if (new_mask ^ old_mask) {
260 /** @todo is IRQ deasserted when only one of status bits is cleared? */
266 if ((new_mask & SR_LVBCI) && (r->cr & CR_LVBIE)) {
270 if ((new_mask & SR_BCIS) && (r->cr & CR_IOCE)) {
279 dolog ("IOC%d LVB%d sr=%#x event=%d level=%d\n",
280 r->sr & SR_BCIS, r->sr & SR_LVBCI,
288 s->glob_sta |= masks[r - s->bm_regs];
289 dolog ("set irq level=1\n");
290 pci_irq_assert(&s->dev);
293 s->glob_sta &= ~masks[r - s->bm_regs];
294 dolog ("set irq level=0\n");
295 pci_irq_deassert(&s->dev);
299 static void voice_set_active (AC97LinkState *s, int bm_index, int on)
303 AUD_set_active_in (s->voice_pi, on);
307 AUD_set_active_out (s->voice_po, on);
311 AUD_set_active_in (s->voice_mc, on);
315 AUD_log ("ac97", "invalid bm_index(%d) in voice_set_active", bm_index);
320 static void reset_bm_regs (AC97LinkState *s, AC97BusMasterRegs *r)
322 dolog ("reset_bm_regs\n");
326 /** todo do we need to do that? */
327 update_sr (s, r, SR_DCH);
330 r->cr = r->cr & CR_DONT_CLEAR_MASK;
333 voice_set_active (s, r - s->bm_regs, 0);
334 memset (s->silence, 0, sizeof (s->silence));
337 static void mixer_store (AC97LinkState *s, uint32_t i, uint16_t v)
339 if (i + 2 > sizeof (s->mixer_data)) {
340 dolog ("mixer_store: index %d out of bounds %zd\n",
341 i, sizeof (s->mixer_data));
345 s->mixer_data[i + 0] = v & 0xff;
346 s->mixer_data[i + 1] = v >> 8;
349 static uint16_t mixer_load (AC97LinkState *s, uint32_t i)
351 uint16_t val = 0xffff;
353 if (i + 2 > sizeof (s->mixer_data)) {
354 dolog ("mixer_load: index %d out of bounds %zd\n",
355 i, sizeof (s->mixer_data));
358 val = s->mixer_data[i + 0] | (s->mixer_data[i + 1] << 8);
364 static void open_voice (AC97LinkState *s, int index, int freq)
366 struct audsettings as;
370 as.fmt = AUDIO_FORMAT_S16;
374 s->invalid_freq[index] = 0;
377 s->voice_pi = AUD_open_in (
388 s->voice_po = AUD_open_out (
399 s->voice_mc = AUD_open_in (
411 s->invalid_freq[index] = freq;
414 AUD_close_in (&s->card, s->voice_pi);
419 AUD_close_out (&s->card, s->voice_po);
424 AUD_close_in (&s->card, s->voice_mc);
431 static void reset_voices (AC97LinkState *s, uint8_t active[LAST_INDEX])
435 freq = mixer_load (s, AC97_PCM_LR_ADC_Rate);
436 open_voice (s, PI_INDEX, freq);
437 AUD_set_active_in (s->voice_pi, active[PI_INDEX]);
439 freq = mixer_load (s, AC97_PCM_Front_DAC_Rate);
440 open_voice (s, PO_INDEX, freq);
441 AUD_set_active_out (s->voice_po, active[PO_INDEX]);
443 freq = mixer_load (s, AC97_MIC_ADC_Rate);
444 open_voice (s, MC_INDEX, freq);
445 AUD_set_active_in (s->voice_mc, active[MC_INDEX]);
448 static void get_volume (uint16_t vol, uint16_t mask, int inverse,
449 int *mute, uint8_t *lvol, uint8_t *rvol)
451 *mute = (vol >> MUTE_SHIFT) & 1;
452 *rvol = (255 * (vol & mask)) / mask;
453 *lvol = (255 * ((vol >> 8) & mask)) / mask;
461 static void update_combined_volume_out (AC97LinkState *s)
463 uint8_t lvol, rvol, plvol, prvol;
466 get_volume (mixer_load (s, AC97_Master_Volume_Mute), 0x3f, 1,
467 &mute, &lvol, &rvol);
468 get_volume (mixer_load (s, AC97_PCM_Out_Volume_Mute), 0x1f, 1,
469 &pmute, &plvol, &prvol);
472 lvol = (lvol * plvol) / 255;
473 rvol = (rvol * prvol) / 255;
475 AUD_set_volume_out (s->voice_po, mute, lvol, rvol);
478 static void update_volume_in (AC97LinkState *s)
483 get_volume (mixer_load (s, AC97_Record_Gain_Mute), 0x0f, 0,
484 &mute, &lvol, &rvol);
486 AUD_set_volume_in (s->voice_pi, mute, lvol, rvol);
489 static void set_volume (AC97LinkState *s, int index, uint32_t val)
492 case AC97_Master_Volume_Mute:
494 mixer_store (s, index, val);
495 update_combined_volume_out (s);
497 case AC97_PCM_Out_Volume_Mute:
499 mixer_store (s, index, val);
500 update_combined_volume_out (s);
502 case AC97_Record_Gain_Mute:
504 mixer_store (s, index, val);
505 update_volume_in (s);
510 static void record_select (AC97LinkState *s, uint32_t val)
512 uint8_t rs = val & REC_MASK;
513 uint8_t ls = (val >> 8) & REC_MASK;
514 mixer_store (s, AC97_Record_Select, rs | (ls << 8));
517 static void mixer_reset (AC97LinkState *s)
519 uint8_t active[LAST_INDEX];
521 dolog ("mixer_reset\n");
522 memset (s->mixer_data, 0, sizeof (s->mixer_data));
523 memset (active, 0, sizeof (active));
524 mixer_store (s, AC97_Reset , 0x0000); /* 6940 */
525 mixer_store (s, AC97_Headphone_Volume_Mute , 0x0000);
526 mixer_store (s, AC97_Master_Volume_Mono_Mute , 0x0000);
527 mixer_store (s, AC97_Master_Tone_RL, 0x0000);
528 mixer_store (s, AC97_PC_BEEP_Volume_Mute , 0x0000);
529 mixer_store (s, AC97_Phone_Volume_Mute , 0x0000);
530 mixer_store (s, AC97_Mic_Volume_Mute , 0x0000);
531 mixer_store (s, AC97_Line_In_Volume_Mute , 0x0000);
532 mixer_store (s, AC97_CD_Volume_Mute , 0x0000);
533 mixer_store (s, AC97_Video_Volume_Mute , 0x0000);
534 mixer_store (s, AC97_Aux_Volume_Mute , 0x0000);
535 mixer_store (s, AC97_Record_Gain_Mic_Mute , 0x0000);
536 mixer_store (s, AC97_General_Purpose , 0x0000);
537 mixer_store (s, AC97_3D_Control , 0x0000);
538 mixer_store (s, AC97_Powerdown_Ctrl_Stat , 0x000f);
541 * Sigmatel 9700 (STAC9700)
543 mixer_store (s, AC97_Vendor_ID1 , 0x8384);
544 mixer_store (s, AC97_Vendor_ID2 , 0x7600); /* 7608 */
546 mixer_store (s, AC97_Extended_Audio_ID , 0x0809);
547 mixer_store (s, AC97_Extended_Audio_Ctrl_Stat, 0x0009);
548 mixer_store (s, AC97_PCM_Front_DAC_Rate , 0xbb80);
549 mixer_store (s, AC97_PCM_Surround_DAC_Rate , 0xbb80);
550 mixer_store (s, AC97_PCM_LFE_DAC_Rate , 0xbb80);
551 mixer_store (s, AC97_PCM_LR_ADC_Rate , 0xbb80);
552 mixer_store (s, AC97_MIC_ADC_Rate , 0xbb80);
554 record_select (s, 0);
555 set_volume (s, AC97_Master_Volume_Mute, 0x8000);
556 set_volume (s, AC97_PCM_Out_Volume_Mute, 0x8808);
557 set_volume (s, AC97_Record_Gain_Mute, 0x8808);
559 reset_voices (s, active);
566 static uint32_t nam_readb (void *opaque, uint32_t addr)
568 AC97LinkState *s = opaque;
569 dolog ("U nam readb %#x\n", addr);
574 static uint32_t nam_readw (void *opaque, uint32_t addr)
576 AC97LinkState *s = opaque;
578 uint32_t index = addr;
580 val = mixer_load (s, index);
584 static uint32_t nam_readl (void *opaque, uint32_t addr)
586 AC97LinkState *s = opaque;
587 dolog ("U nam readl %#x\n", addr);
596 static void nam_writeb (void *opaque, uint32_t addr, uint32_t val)
598 AC97LinkState *s = opaque;
599 dolog ("U nam writeb %#x <- %#x\n", addr, val);
603 static void nam_writew (void *opaque, uint32_t addr, uint32_t val)
605 AC97LinkState *s = opaque;
606 uint32_t index = addr;
612 case AC97_Powerdown_Ctrl_Stat:
614 val |= mixer_load (s, index) & 0xf;
615 mixer_store (s, index, val);
617 case AC97_PCM_Out_Volume_Mute:
618 case AC97_Master_Volume_Mute:
619 case AC97_Record_Gain_Mute:
620 set_volume (s, index, val);
622 case AC97_Record_Select:
623 record_select (s, val);
625 case AC97_Vendor_ID1:
626 case AC97_Vendor_ID2:
627 dolog ("Attempt to write vendor ID to %#x\n", val);
629 case AC97_Extended_Audio_ID:
630 dolog ("Attempt to write extended audio ID to %#x\n", val);
632 case AC97_Extended_Audio_Ctrl_Stat:
633 if (!(val & EACS_VRA)) {
634 mixer_store (s, AC97_PCM_Front_DAC_Rate, 0xbb80);
635 mixer_store (s, AC97_PCM_LR_ADC_Rate, 0xbb80);
636 open_voice (s, PI_INDEX, 48000);
637 open_voice (s, PO_INDEX, 48000);
639 if (!(val & EACS_VRM)) {
640 mixer_store (s, AC97_MIC_ADC_Rate, 0xbb80);
641 open_voice (s, MC_INDEX, 48000);
643 dolog ("Setting extended audio control to %#x\n", val);
644 mixer_store (s, AC97_Extended_Audio_Ctrl_Stat, val);
646 case AC97_PCM_Front_DAC_Rate:
647 if (mixer_load (s, AC97_Extended_Audio_Ctrl_Stat) & EACS_VRA) {
648 mixer_store (s, index, val);
649 dolog ("Set front DAC rate to %d\n", val);
650 open_voice (s, PO_INDEX, val);
653 dolog ("Attempt to set front DAC rate to %d, "
654 "but VRA is not set\n",
658 case AC97_MIC_ADC_Rate:
659 if (mixer_load (s, AC97_Extended_Audio_Ctrl_Stat) & EACS_VRM) {
660 mixer_store (s, index, val);
661 dolog ("Set MIC ADC rate to %d\n", val);
662 open_voice (s, MC_INDEX, val);
665 dolog ("Attempt to set MIC ADC rate to %d, "
666 "but VRM is not set\n",
670 case AC97_PCM_LR_ADC_Rate:
671 if (mixer_load (s, AC97_Extended_Audio_Ctrl_Stat) & EACS_VRA) {
672 mixer_store (s, index, val);
673 dolog ("Set front LR ADC rate to %d\n", val);
674 open_voice (s, PI_INDEX, val);
677 dolog ("Attempt to set LR ADC rate to %d, but VRA is not set\n",
681 case AC97_Headphone_Volume_Mute:
682 case AC97_Master_Volume_Mono_Mute:
683 case AC97_Master_Tone_RL:
684 case AC97_PC_BEEP_Volume_Mute:
685 case AC97_Phone_Volume_Mute:
686 case AC97_Mic_Volume_Mute:
687 case AC97_Line_In_Volume_Mute:
688 case AC97_CD_Volume_Mute:
689 case AC97_Video_Volume_Mute:
690 case AC97_Aux_Volume_Mute:
691 case AC97_Record_Gain_Mic_Mute:
692 case AC97_General_Purpose:
693 case AC97_3D_Control:
694 case AC97_Sigmatel_Analog:
695 case AC97_Sigmatel_Dac2Invert:
696 /* None of the features in these regs are emulated, so they are RO */
699 dolog ("U nam writew %#x <- %#x\n", addr, val);
700 mixer_store (s, index, val);
705 static void nam_writel (void *opaque, uint32_t addr, uint32_t val)
707 AC97LinkState *s = opaque;
708 dolog ("U nam writel %#x <- %#x\n", addr, val);
713 * Native audio bus master
716 static uint32_t nabm_readb (void *opaque, uint32_t addr)
718 AC97LinkState *s = opaque;
719 AC97BusMasterRegs *r = NULL;
720 uint32_t index = addr;
725 dolog ("CAS %d\n", s->cas);
732 r = &s->bm_regs[GET_BM (index)];
734 dolog ("CIV[%d] -> %#x\n", GET_BM (index), val);
739 r = &s->bm_regs[GET_BM (index)];
741 dolog ("LVI[%d] -> %#x\n", GET_BM (index), val);
746 r = &s->bm_regs[GET_BM (index)];
748 dolog ("PIV[%d] -> %#x\n", GET_BM (index), val);
753 r = &s->bm_regs[GET_BM (index)];
755 dolog ("CR[%d] -> %#x\n", GET_BM (index), val);
760 r = &s->bm_regs[GET_BM (index)];
762 dolog ("SRb[%d] -> %#x\n", GET_BM (index), val);
765 dolog ("U nabm readb %#x -> %#x\n", addr, val);
771 static uint32_t nabm_readw (void *opaque, uint32_t addr)
773 AC97LinkState *s = opaque;
774 AC97BusMasterRegs *r = NULL;
775 uint32_t index = addr;
782 r = &s->bm_regs[GET_BM (index)];
784 dolog ("SR[%d] -> %#x\n", GET_BM (index), val);
789 r = &s->bm_regs[GET_BM (index)];
791 dolog ("PICB[%d] -> %#x\n", GET_BM (index), val);
794 dolog ("U nabm readw %#x -> %#x\n", addr, val);
800 static uint32_t nabm_readl (void *opaque, uint32_t addr)
802 AC97LinkState *s = opaque;
803 AC97BusMasterRegs *r = NULL;
804 uint32_t index = addr;
811 r = &s->bm_regs[GET_BM (index)];
813 dolog ("BMADDR[%d] -> %#x\n", GET_BM (index), val);
818 r = &s->bm_regs[GET_BM (index)];
819 val = r->civ | (r->lvi << 8) | (r->sr << 16);
820 dolog ("CIV LVI SR[%d] -> %#x, %#x, %#x\n", GET_BM (index),
821 r->civ, r->lvi, r->sr);
826 r = &s->bm_regs[GET_BM (index)];
827 val = r->picb | (r->piv << 16) | (r->cr << 24);
828 dolog ("PICB PIV CR[%d] -> %#x %#x %#x %#x\n", GET_BM (index),
829 val, r->picb, r->piv, r->cr);
833 dolog ("glob_cnt -> %#x\n", val);
836 val = s->glob_sta | GS_S0CR;
837 dolog ("glob_sta -> %#x\n", val);
840 dolog ("U nabm readl %#x -> %#x\n", addr, val);
847 * Native audio bus master
850 static void nabm_writeb (void *opaque, uint32_t addr, uint32_t val)
852 AC97LinkState *s = opaque;
853 AC97BusMasterRegs *r = NULL;
854 uint32_t index = addr;
859 r = &s->bm_regs[GET_BM (index)];
860 if ((r->cr & CR_RPBM) && (r->sr & SR_DCH)) {
861 r->sr &= ~(SR_DCH | SR_CELV);
863 r->piv = (r->piv + 1) % 32;
867 dolog ("LVI[%d] <- %#x\n", GET_BM (index), val);
872 r = &s->bm_regs[GET_BM (index)];
874 reset_bm_regs (s, r);
877 r->cr = val & CR_VALID_MASK;
878 if (!(r->cr & CR_RPBM)) {
879 voice_set_active (s, r - s->bm_regs, 0);
884 r->piv = (r->piv + 1) % 32;
887 voice_set_active (s, r - s->bm_regs, 1);
890 dolog ("CR[%d] <- %#x (cr %#x)\n", GET_BM (index), val, r->cr);
895 r = &s->bm_regs[GET_BM (index)];
896 r->sr |= val & ~(SR_RO_MASK | SR_WCLEAR_MASK);
897 update_sr (s, r, r->sr & ~(val & SR_WCLEAR_MASK));
898 dolog ("SR[%d] <- %#x (sr %#x)\n", GET_BM (index), val, r->sr);
901 dolog ("U nabm writeb %#x <- %#x\n", addr, val);
906 static void nabm_writew (void *opaque, uint32_t addr, uint32_t val)
908 AC97LinkState *s = opaque;
909 AC97BusMasterRegs *r = NULL;
910 uint32_t index = addr;
915 r = &s->bm_regs[GET_BM (index)];
916 r->sr |= val & ~(SR_RO_MASK | SR_WCLEAR_MASK);
917 update_sr (s, r, r->sr & ~(val & SR_WCLEAR_MASK));
918 dolog ("SR[%d] <- %#x (sr %#x)\n", GET_BM (index), val, r->sr);
921 dolog ("U nabm writew %#x <- %#x\n", addr, val);
926 static void nabm_writel (void *opaque, uint32_t addr, uint32_t val)
928 AC97LinkState *s = opaque;
929 AC97BusMasterRegs *r = NULL;
930 uint32_t index = addr;
935 r = &s->bm_regs[GET_BM (index)];
937 dolog ("BDBAR[%d] <- %#x (bdbar %#x)\n",
938 GET_BM (index), val, r->bdbar);
945 if (!(val & (GC_WR | GC_CR)))
946 s->glob_cnt = val & GC_VALID_MASK;
947 dolog ("glob_cnt <- %#x (glob_cnt %#x)\n", val, s->glob_cnt);
950 s->glob_sta &= ~(val & GS_WCLEAR_MASK);
951 s->glob_sta |= (val & ~(GS_WCLEAR_MASK | GS_RO_MASK)) & GS_VALID_MASK;
952 dolog ("glob_sta <- %#x (glob_sta %#x)\n", val, s->glob_sta);
955 dolog ("U nabm writel %#x <- %#x\n", addr, val);
960 static int write_audio (AC97LinkState *s, AC97BusMasterRegs *r,
963 uint8_t tmpbuf[4096];
964 uint32_t addr = r->bd.addr;
965 uint32_t temp = r->picb << 1;
966 uint32_t written = 0;
968 temp = audio_MIN (temp, max);
977 to_copy = audio_MIN (temp, sizeof (tmpbuf));
978 pci_dma_read (&s->dev, addr, tmpbuf, to_copy);
979 copied = AUD_write (s->voice_po, tmpbuf, to_copy);
980 dolog ("write_audio max=%x to_copy=%x copied=%x\n",
981 max, to_copy, copied);
997 s->last_samp = *(uint32_t *) &tmpbuf[to_copy - 4];
1005 static void write_bup (AC97LinkState *s, int elapsed)
1007 dolog ("write_bup\n");
1008 if (!(s->bup_flag & BUP_SET)) {
1009 if (s->bup_flag & BUP_LAST) {
1011 uint8_t *p = s->silence;
1012 for (i = 0; i < sizeof (s->silence) / 4; i++, p += 4) {
1013 *(uint32_t *) p = s->last_samp;
1017 memset (s->silence, 0, sizeof (s->silence));
1019 s->bup_flag |= BUP_SET;
1023 int temp = audio_MIN (elapsed, sizeof (s->silence));
1025 int copied = AUD_write (s->voice_po, s->silence, temp);
1034 static int read_audio (AC97LinkState *s, AC97BusMasterRegs *r,
1037 uint8_t tmpbuf[4096];
1038 uint32_t addr = r->bd.addr;
1039 uint32_t temp = r->picb << 1;
1042 SWVoiceIn *voice = (r - s->bm_regs) == MC_INDEX ? s->voice_mc : s->voice_pi;
1044 temp = audio_MIN (temp, max);
1053 to_copy = audio_MIN (temp, sizeof (tmpbuf));
1054 acquired = AUD_read (voice, tmpbuf, to_copy);
1059 pci_dma_write (&s->dev, addr, tmpbuf, acquired);
1069 static void transfer_audio (AC97LinkState *s, int index, int elapsed)
1071 AC97BusMasterRegs *r = &s->bm_regs[index];
1074 if (s->invalid_freq[index]) {
1075 AUD_log ("ac97", "attempt to use voice %d with invalid frequency %d\n",
1076 index, s->invalid_freq[index]);
1080 if (r->sr & SR_DCH) {
1081 if (r->cr & CR_RPBM) {
1084 write_bup (s, elapsed);
1091 while ((elapsed >> 1) && !stop) {
1095 dolog ("invalid bd\n");
1100 dolog ("fresh bd %d is empty %#x %#x\n",
1101 r->civ, r->bd.addr, r->bd.ctl_len);
1102 if (r->civ == r->lvi) {
1103 r->sr |= SR_DCH; /* CELV? */
1109 r->piv = (r->piv + 1) % 32;
1116 temp = write_audio (s, r, elapsed, &stop);
1118 r->picb -= (temp >> 1);
1123 temp = read_audio (s, r, elapsed, &stop);
1125 r->picb -= (temp >> 1);
1130 uint32_t new_sr = r->sr & ~SR_CELV;
1132 if (r->bd.ctl_len & BD_IOC) {
1136 if (r->civ == r->lvi) {
1137 dolog ("Underrun civ (%d) == lvi (%d)\n", r->civ, r->lvi);
1139 new_sr |= SR_LVBCI | SR_DCH | SR_CELV;
1141 s->bup_flag = (r->bd.ctl_len & BD_BUP) ? BUP_LAST : 0;
1145 r->piv = (r->piv + 1) % 32;
1149 update_sr (s, r, new_sr);
1154 static void pi_callback (void *opaque, int avail)
1156 transfer_audio (opaque, PI_INDEX, avail);
1159 static void mc_callback (void *opaque, int avail)
1161 transfer_audio (opaque, MC_INDEX, avail);
1164 static void po_callback (void *opaque, int free)
1166 transfer_audio (opaque, PO_INDEX, free);
1169 static const VMStateDescription vmstate_ac97_bm_regs = {
1170 .name = "ac97_bm_regs",
1172 .minimum_version_id = 1,
1173 .fields = (VMStateField[]) {
1174 VMSTATE_UINT32 (bdbar, AC97BusMasterRegs),
1175 VMSTATE_UINT8 (civ, AC97BusMasterRegs),
1176 VMSTATE_UINT8 (lvi, AC97BusMasterRegs),
1177 VMSTATE_UINT16 (sr, AC97BusMasterRegs),
1178 VMSTATE_UINT16 (picb, AC97BusMasterRegs),
1179 VMSTATE_UINT8 (piv, AC97BusMasterRegs),
1180 VMSTATE_UINT8 (cr, AC97BusMasterRegs),
1181 VMSTATE_UINT32 (bd_valid, AC97BusMasterRegs),
1182 VMSTATE_UINT32 (bd.addr, AC97BusMasterRegs),
1183 VMSTATE_UINT32 (bd.ctl_len, AC97BusMasterRegs),
1184 VMSTATE_END_OF_LIST ()
1188 static int ac97_post_load (void *opaque, int version_id)
1190 uint8_t active[LAST_INDEX];
1191 AC97LinkState *s = opaque;
1193 record_select (s, mixer_load (s, AC97_Record_Select));
1194 set_volume (s, AC97_Master_Volume_Mute,
1195 mixer_load (s, AC97_Master_Volume_Mute));
1196 set_volume (s, AC97_PCM_Out_Volume_Mute,
1197 mixer_load (s, AC97_PCM_Out_Volume_Mute));
1198 set_volume (s, AC97_Record_Gain_Mute,
1199 mixer_load (s, AC97_Record_Gain_Mute));
1201 active[PI_INDEX] = !!(s->bm_regs[PI_INDEX].cr & CR_RPBM);
1202 active[PO_INDEX] = !!(s->bm_regs[PO_INDEX].cr & CR_RPBM);
1203 active[MC_INDEX] = !!(s->bm_regs[MC_INDEX].cr & CR_RPBM);
1204 reset_voices (s, active);
1211 static bool is_version_2 (void *opaque, int version_id)
1213 return version_id == 2;
1216 static const VMStateDescription vmstate_ac97 = {
1219 .minimum_version_id = 2,
1220 .post_load = ac97_post_load,
1221 .fields = (VMStateField[]) {
1222 VMSTATE_PCI_DEVICE (dev, AC97LinkState),
1223 VMSTATE_UINT32 (glob_cnt, AC97LinkState),
1224 VMSTATE_UINT32 (glob_sta, AC97LinkState),
1225 VMSTATE_UINT32 (cas, AC97LinkState),
1226 VMSTATE_STRUCT_ARRAY (bm_regs, AC97LinkState, 3, 1,
1227 vmstate_ac97_bm_regs, AC97BusMasterRegs),
1228 VMSTATE_BUFFER (mixer_data, AC97LinkState),
1229 VMSTATE_UNUSED_TEST (is_version_2, 3),
1230 VMSTATE_END_OF_LIST ()
1234 static uint64_t nam_read(void *opaque, hwaddr addr, unsigned size)
1236 if ((addr / size) > 256) {
1242 return nam_readb(opaque, addr);
1244 return nam_readw(opaque, addr);
1246 return nam_readl(opaque, addr);
1252 static void nam_write(void *opaque, hwaddr addr, uint64_t val,
1255 if ((addr / size) > 256) {
1261 nam_writeb(opaque, addr, val);
1264 nam_writew(opaque, addr, val);
1267 nam_writel(opaque, addr, val);
1272 static const MemoryRegionOps ac97_io_nam_ops = {
1276 .min_access_size = 1,
1277 .max_access_size = 4,
1279 .endianness = DEVICE_LITTLE_ENDIAN,
1282 static uint64_t nabm_read(void *opaque, hwaddr addr, unsigned size)
1284 if ((addr / size) > 64) {
1290 return nabm_readb(opaque, addr);
1292 return nabm_readw(opaque, addr);
1294 return nabm_readl(opaque, addr);
1300 static void nabm_write(void *opaque, hwaddr addr, uint64_t val,
1303 if ((addr / size) > 64) {
1309 nabm_writeb(opaque, addr, val);
1312 nabm_writew(opaque, addr, val);
1315 nabm_writel(opaque, addr, val);
1321 static const MemoryRegionOps ac97_io_nabm_ops = {
1323 .write = nabm_write,
1325 .min_access_size = 1,
1326 .max_access_size = 4,
1328 .endianness = DEVICE_LITTLE_ENDIAN,
1331 static void ac97_on_reset (DeviceState *dev)
1333 AC97LinkState *s = container_of(dev, AC97LinkState, dev.qdev);
1335 reset_bm_regs (s, &s->bm_regs[0]);
1336 reset_bm_regs (s, &s->bm_regs[1]);
1337 reset_bm_regs (s, &s->bm_regs[2]);
1340 * Reset the mixer too. The Windows XP driver seems to rely on
1341 * this. At least it wants to read the vendor id before it resets
1342 * the codec manually.
1347 static void ac97_realize(PCIDevice *dev, Error **errp)
1349 AC97LinkState *s = AC97(dev);
1350 uint8_t *c = s->dev.config;
1352 /* TODO: no need to override */
1353 c[PCI_COMMAND] = 0x00; /* pcicmd pci command rw, ro */
1354 c[PCI_COMMAND + 1] = 0x00;
1357 c[PCI_STATUS] = PCI_STATUS_FAST_BACK; /* pcists pci status rwc, ro */
1358 c[PCI_STATUS + 1] = PCI_STATUS_DEVSEL_MEDIUM >> 8;
1360 c[PCI_CLASS_PROG] = 0x00; /* pi programming interface ro */
1362 /* TODO set when bar is registered. no need to override. */
1363 /* nabmar native audio mixer base address rw */
1364 c[PCI_BASE_ADDRESS_0] = PCI_BASE_ADDRESS_SPACE_IO;
1365 c[PCI_BASE_ADDRESS_0 + 1] = 0x00;
1366 c[PCI_BASE_ADDRESS_0 + 2] = 0x00;
1367 c[PCI_BASE_ADDRESS_0 + 3] = 0x00;
1369 /* TODO set when bar is registered. no need to override. */
1370 /* nabmbar native audio bus mastering base address rw */
1371 c[PCI_BASE_ADDRESS_0 + 4] = PCI_BASE_ADDRESS_SPACE_IO;
1372 c[PCI_BASE_ADDRESS_0 + 5] = 0x00;
1373 c[PCI_BASE_ADDRESS_0 + 6] = 0x00;
1374 c[PCI_BASE_ADDRESS_0 + 7] = 0x00;
1376 if (s->use_broken_id) {
1377 c[PCI_SUBSYSTEM_VENDOR_ID] = 0x86;
1378 c[PCI_SUBSYSTEM_VENDOR_ID + 1] = 0x80;
1379 c[PCI_SUBSYSTEM_ID] = 0x00;
1380 c[PCI_SUBSYSTEM_ID + 1] = 0x00;
1383 c[PCI_INTERRUPT_LINE] = 0x00; /* intr_ln interrupt line rw */
1384 c[PCI_INTERRUPT_PIN] = 0x01; /* intr_pn interrupt pin ro */
1386 memory_region_init_io (&s->io_nam, OBJECT(s), &ac97_io_nam_ops, s,
1388 memory_region_init_io (&s->io_nabm, OBJECT(s), &ac97_io_nabm_ops, s,
1390 pci_register_bar (&s->dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->io_nam);
1391 pci_register_bar (&s->dev, 1, PCI_BASE_ADDRESS_SPACE_IO, &s->io_nabm);
1392 AUD_register_card ("ac97", &s->card);
1393 ac97_on_reset(DEVICE(s));
1396 static void ac97_exit(PCIDevice *dev)
1398 AC97LinkState *s = AC97(dev);
1400 AUD_close_in(&s->card, s->voice_pi);
1401 AUD_close_out(&s->card, s->voice_po);
1402 AUD_close_in(&s->card, s->voice_mc);
1403 AUD_remove_card(&s->card);
1406 static int ac97_init (PCIBus *bus)
1408 pci_create_simple(bus, -1, TYPE_AC97);
1412 static Property ac97_properties[] = {
1413 DEFINE_PROP_UINT32 ("use_broken_id", AC97LinkState, use_broken_id, 0),
1414 DEFINE_PROP_END_OF_LIST (),
1417 static void ac97_class_init (ObjectClass *klass, void *data)
1419 DeviceClass *dc = DEVICE_CLASS (klass);
1420 PCIDeviceClass *k = PCI_DEVICE_CLASS (klass);
1422 k->realize = ac97_realize;
1423 k->exit = ac97_exit;
1424 k->vendor_id = PCI_VENDOR_ID_INTEL;
1425 k->device_id = PCI_DEVICE_ID_INTEL_82801AA_5;
1427 k->class_id = PCI_CLASS_MULTIMEDIA_AUDIO;
1428 set_bit(DEVICE_CATEGORY_SOUND, dc->categories);
1429 dc->desc = "Intel 82801AA AC97 Audio";
1430 dc->vmsd = &vmstate_ac97;
1431 dc->props = ac97_properties;
1432 dc->reset = ac97_on_reset;
1435 static const TypeInfo ac97_info = {
1437 .parent = TYPE_PCI_DEVICE,
1438 .instance_size = sizeof (AC97LinkState),
1439 .class_init = ac97_class_init,
1440 .interfaces = (InterfaceInfo[]) {
1441 { INTERFACE_CONVENTIONAL_PCI_DEVICE },
1446 static void ac97_register_types (void)
1448 type_register_static (&ac97_info);
1449 pci_register_soundhw("ac97", "Intel 82801AA AC97 Audio", ac97_init);
1452 type_init (ac97_register_types)