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.
19 #include "audio/audio.h"
24 AC97_Master_Volume_Mute = 0x02,
25 AC97_Headphone_Volume_Mute = 0x04,
26 AC97_Master_Volume_Mono_Mute = 0x06,
27 AC97_Master_Tone_RL = 0x08,
28 AC97_PC_BEEP_Volume_Mute = 0x0A,
29 AC97_Phone_Volume_Mute = 0x0C,
30 AC97_Mic_Volume_Mute = 0x0E,
31 AC97_Line_In_Volume_Mute = 0x10,
32 AC97_CD_Volume_Mute = 0x12,
33 AC97_Video_Volume_Mute = 0x14,
34 AC97_Aux_Volume_Mute = 0x16,
35 AC97_PCM_Out_Volume_Mute = 0x18,
36 AC97_Record_Select = 0x1A,
37 AC97_Record_Gain_Mute = 0x1C,
38 AC97_Record_Gain_Mic_Mute = 0x1E,
39 AC97_General_Purpose = 0x20,
40 AC97_3D_Control = 0x22,
41 AC97_AC_97_RESERVED = 0x24,
42 AC97_Powerdown_Ctrl_Stat = 0x26,
43 AC97_Extended_Audio_ID = 0x28,
44 AC97_Extended_Audio_Ctrl_Stat = 0x2A,
45 AC97_PCM_Front_DAC_Rate = 0x2C,
46 AC97_PCM_Surround_DAC_Rate = 0x2E,
47 AC97_PCM_LFE_DAC_Rate = 0x30,
48 AC97_PCM_LR_ADC_Rate = 0x32,
49 AC97_MIC_ADC_Rate = 0x34,
50 AC97_6Ch_Vol_C_LFE_Mute = 0x36,
51 AC97_6Ch_Vol_L_R_Surround_Mute = 0x38,
52 AC97_Vendor_Reserved = 0x58,
53 AC97_Vendor_ID1 = 0x7c,
54 AC97_Vendor_ID2 = 0x7e
58 #define SR_FIFOE 16 /* rwc */
59 #define SR_BCIS 8 /* rwc */
60 #define SR_LVBCI 4 /* rwc */
61 #define SR_CELV 2 /* ro */
62 #define SR_DCH 1 /* ro */
63 #define SR_VALID_MASK ((1 << 5) - 1)
64 #define SR_WCLEAR_MASK (SR_FIFOE | SR_BCIS | SR_LVBCI)
65 #define SR_RO_MASK (SR_DCH | SR_CELV)
66 #define SR_INT_MASK (SR_FIFOE | SR_BCIS | SR_LVBCI)
68 #define CR_IOCE 16 /* rw */
69 #define CR_FEIE 8 /* rw */
70 #define CR_LVBIE 4 /* rw */
71 #define CR_RR 2 /* rw */
72 #define CR_RPBM 1 /* rw */
73 #define CR_VALID_MASK ((1 << 5) - 1)
74 #define CR_DONT_CLEAR_MASK (CR_IOCE | CR_FEIE | CR_LVBIE)
76 #define GC_WR 4 /* rw */
77 #define GC_CR 2 /* rw */
78 #define GC_VALID_MASK ((1 << 6) - 1)
80 #define GS_MD3 (1<<17) /* rw */
81 #define GS_AD3 (1<<16) /* rw */
82 #define GS_RCS (1<<15) /* rwc */
83 #define GS_B3S12 (1<<14) /* ro */
84 #define GS_B2S12 (1<<13) /* ro */
85 #define GS_B1S12 (1<<12) /* ro */
86 #define GS_S1R1 (1<<11) /* rwc */
87 #define GS_S0R1 (1<<10) /* rwc */
88 #define GS_S1CR (1<<9) /* ro */
89 #define GS_S0CR (1<<8) /* ro */
90 #define GS_MINT (1<<7) /* ro */
91 #define GS_POINT (1<<6) /* ro */
92 #define GS_PIINT (1<<5) /* ro */
93 #define GS_RSRVD ((1<<4)|(1<<3))
94 #define GS_MOINT (1<<2) /* ro */
95 #define GS_MIINT (1<<1) /* ro */
96 #define GS_GSCI 1 /* rwc */
97 #define GS_RO_MASK (GS_B3S12| \
108 #define GS_VALID_MASK ((1 << 18) - 1)
109 #define GS_WCLEAR_MASK (GS_RCS|GS_S1R1|GS_S0R1|GS_GSCI)
111 #define BD_IOC (1<<31)
112 #define BD_BUP (1<<30)
117 #define VOL_MASK 0x1f
118 #define MUTE_SHIFT 15
137 typedef struct AC97BusMasterRegs {
138 uint32_t bdbar; /* rw 0 */
139 uint8_t civ; /* ro 0 */
140 uint8_t lvi; /* rw 0 */
141 uint16_t sr; /* rw 1 */
142 uint16_t picb; /* ro 0 */
143 uint8_t piv; /* ro 0 */
144 uint8_t cr; /* rw 0 */
145 unsigned int bd_valid;
149 typedef struct AC97LinkState {
156 AC97BusMasterRegs bm_regs[3];
157 uint8_t mixer_data[256];
159 SWVoiceOut *voice_po;
162 uint8_t silence[128];
173 #define dolog(...) AUD_log ("ac97", __VA_ARGS__)
178 #define MKREGS(prefix, start) \
180 prefix ## _BDBAR = start, \
181 prefix ## _CIV = start + 4, \
182 prefix ## _LVI = start + 5, \
183 prefix ## _SR = start + 6, \
184 prefix ## _PICB = start + 8, \
185 prefix ## _PIV = start + 10, \
186 prefix ## _CR = start + 11 \
196 MKREGS (PI, PI_INDEX * 16);
197 MKREGS (PO, PO_INDEX * 16);
198 MKREGS (MC, MC_INDEX * 16);
206 #define GET_BM(index) (((index) >> 4) & 3)
208 static void po_callback (void *opaque, int free);
209 static void pi_callback (void *opaque, int avail);
210 static void mc_callback (void *opaque, int avail);
212 static void warm_reset (AC97LinkState *s)
217 static void cold_reset (AC97LinkState * s)
222 static void fetch_bd (AC97LinkState *s, AC97BusMasterRegs *r)
226 cpu_physical_memory_read (r->bdbar + r->civ * 8, b, 8);
228 r->bd.addr = le32_to_cpu (*(uint32_t *) &b[0]) & ~3;
229 r->bd.ctl_len = le32_to_cpu (*(uint32_t *) &b[4]);
230 r->picb = r->bd.ctl_len & 0xffff;
231 dolog ("bd %2d addr=%#x ctl=%#06x len=%#x(%d bytes)\n",
232 r->civ, r->bd.addr, r->bd.ctl_len >> 16,
233 r->bd.ctl_len & 0xffff,
234 (r->bd.ctl_len & 0xffff) << 1);
237 static void update_sr (AC97LinkState *s, AC97BusMasterRegs *r, uint32_t new_sr)
241 uint32_t new_mask = new_sr & SR_INT_MASK;
242 uint32_t old_mask = r->sr & SR_INT_MASK;
243 uint32_t masks[] = {GS_PIINT, GS_POINT, GS_MINT};
245 if (new_mask ^ old_mask) {
246 /** @todo is IRQ deasserted when only one of status bits is cleared? */
252 if ((new_mask & SR_LVBCI) && (r->cr & CR_LVBIE)) {
256 if ((new_mask & SR_BCIS) && (r->cr & CR_IOCE)) {
265 dolog ("IOC%d LVB%d sr=%#x event=%d level=%d\n",
266 r->sr & SR_BCIS, r->sr & SR_LVBCI,
274 s->glob_sta |= masks[r - s->bm_regs];
275 dolog ("set irq level=1\n");
276 qemu_set_irq (s->dev.irq[0], 1);
279 s->glob_sta &= ~masks[r - s->bm_regs];
280 dolog ("set irq level=0\n");
281 qemu_set_irq (s->dev.irq[0], 0);
285 static void voice_set_active (AC97LinkState *s, int bm_index, int on)
289 AUD_set_active_in (s->voice_pi, on);
293 AUD_set_active_out (s->voice_po, on);
297 AUD_set_active_in (s->voice_mc, on);
301 AUD_log ("ac97", "invalid bm_index(%d) in voice_set_active", bm_index);
306 static void reset_bm_regs (AC97LinkState *s, AC97BusMasterRegs *r)
308 dolog ("reset_bm_regs\n");
312 /** todo do we need to do that? */
313 update_sr (s, r, SR_DCH);
316 r->cr = r->cr & CR_DONT_CLEAR_MASK;
319 voice_set_active (s, r - s->bm_regs, 0);
320 memset (s->silence, 0, sizeof (s->silence));
323 static void mixer_store (AC97LinkState *s, uint32_t i, uint16_t v)
325 if (i + 2 > sizeof (s->mixer_data)) {
326 dolog ("mixer_store: index %d out of bounds %zd\n",
327 i, sizeof (s->mixer_data));
331 s->mixer_data[i + 0] = v & 0xff;
332 s->mixer_data[i + 1] = v >> 8;
335 static uint16_t mixer_load (AC97LinkState *s, uint32_t i)
337 uint16_t val = 0xffff;
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));
344 val = s->mixer_data[i + 0] | (s->mixer_data[i + 1] << 8);
350 static void open_voice (AC97LinkState *s, int index, int freq)
352 struct audsettings as;
356 as.fmt = AUD_FMT_S16;
360 s->invalid_freq[index] = 0;
363 s->voice_pi = AUD_open_in (
374 s->voice_po = AUD_open_out (
385 s->voice_mc = AUD_open_in (
397 s->invalid_freq[index] = freq;
400 AUD_close_in (&s->card, s->voice_pi);
405 AUD_close_out (&s->card, s->voice_po);
410 AUD_close_in (&s->card, s->voice_mc);
417 static void reset_voices (AC97LinkState *s, uint8_t active[LAST_INDEX])
421 freq = mixer_load (s, AC97_PCM_LR_ADC_Rate);
422 open_voice (s, PI_INDEX, freq);
423 AUD_set_active_in (s->voice_pi, active[PI_INDEX]);
425 freq = mixer_load (s, AC97_PCM_Front_DAC_Rate);
426 open_voice (s, PO_INDEX, freq);
427 AUD_set_active_out (s->voice_po, active[PO_INDEX]);
429 freq = mixer_load (s, AC97_MIC_ADC_Rate);
430 open_voice (s, MC_INDEX, freq);
431 AUD_set_active_in (s->voice_mc, active[MC_INDEX]);
435 static void set_volume (AC97LinkState *s, int index,
436 audmixerctl_t mt, uint32_t val)
438 int mute = (val >> MUTE_SHIFT) & 1;
439 uint8_t rvol = VOL_MASK - (val & VOL_MASK);
440 uint8_t lvol = VOL_MASK - ((val >> 8) & VOL_MASK);
441 rvol = 255 * rvol / VOL_MASK;
442 lvol = 255 * lvol / VOL_MASK;
445 if (index == AC97_Master_Volume_Mute) {
446 AUD_set_volume_out (s->voice_po, mute, lvol, rvol);
449 AUD_set_volume (mt, &mute, &lvol, &rvol);
452 AUD_set_volume (mt, &mute, &lvol, &rvol);
455 rvol = VOL_MASK - ((VOL_MASK * rvol) / 255);
456 lvol = VOL_MASK - ((VOL_MASK * lvol) / 255);
457 mixer_store (s, index, val);
460 static audrecsource_t ac97_to_aud_record_source (uint8_t i)
470 return AUD_REC_VIDEO;
476 return AUD_REC_LINE_IN;
479 return AUD_REC_PHONE;
482 dolog ("Unknown record source %d, using MIC\n", i);
487 static uint8_t aud_to_ac97_record_source (audrecsource_t rs)
502 case AUD_REC_LINE_IN:
509 dolog ("Unknown audio recording source %d using MIC\n", rs);
514 static void record_select (AC97LinkState *s, uint32_t val)
516 uint8_t rs = val & REC_MASK;
517 uint8_t ls = (val >> 8) & REC_MASK;
518 audrecsource_t ars = ac97_to_aud_record_source (rs);
519 audrecsource_t als = ac97_to_aud_record_source (ls);
520 AUD_set_record_source (&als, &ars);
521 rs = aud_to_ac97_record_source (ars);
522 ls = aud_to_ac97_record_source (als);
523 mixer_store (s, AC97_Record_Select, rs | (ls << 8));
527 static void mixer_reset (AC97LinkState *s)
529 uint8_t active[LAST_INDEX];
531 dolog ("mixer_reset\n");
532 memset (s->mixer_data, 0, sizeof (s->mixer_data));
533 memset (active, 0, sizeof (active));
534 mixer_store (s, AC97_Reset , 0x0000); /* 6940 */
535 mixer_store (s, AC97_Master_Volume_Mono_Mute , 0x8000);
536 mixer_store (s, AC97_PC_BEEP_Volume_Mute , 0x0000);
538 mixer_store (s, AC97_Phone_Volume_Mute , 0x8008);
539 mixer_store (s, AC97_Mic_Volume_Mute , 0x8008);
540 mixer_store (s, AC97_CD_Volume_Mute , 0x8808);
541 mixer_store (s, AC97_Aux_Volume_Mute , 0x8808);
542 mixer_store (s, AC97_Record_Gain_Mic_Mute , 0x8000);
543 mixer_store (s, AC97_General_Purpose , 0x0000);
544 mixer_store (s, AC97_3D_Control , 0x0000);
545 mixer_store (s, AC97_Powerdown_Ctrl_Stat , 0x000f);
548 * Sigmatel 9700 (STAC9700)
550 mixer_store (s, AC97_Vendor_ID1 , 0x8384);
551 mixer_store (s, AC97_Vendor_ID2 , 0x7600); /* 7608 */
553 mixer_store (s, AC97_Extended_Audio_ID , 0x0809);
554 mixer_store (s, AC97_Extended_Audio_Ctrl_Stat, 0x0009);
555 mixer_store (s, AC97_PCM_Front_DAC_Rate , 0xbb80);
556 mixer_store (s, AC97_PCM_Surround_DAC_Rate , 0xbb80);
557 mixer_store (s, AC97_PCM_LFE_DAC_Rate , 0xbb80);
558 mixer_store (s, AC97_PCM_LR_ADC_Rate , 0xbb80);
559 mixer_store (s, AC97_MIC_ADC_Rate , 0xbb80);
562 record_select (s, 0);
563 set_volume (s, AC97_Master_Volume_Mute, AUD_MIXER_VOLUME , 0x8000);
564 set_volume (s, AC97_PCM_Out_Volume_Mute, AUD_MIXER_PCM , 0x8808);
565 set_volume (s, AC97_Line_In_Volume_Mute, AUD_MIXER_LINE_IN, 0x8808);
567 reset_voices (s, active);
574 static uint32_t nam_readb (void *opaque, uint32_t addr)
576 AC97LinkState *s = opaque;
577 dolog ("U nam readb %#x\n", addr);
582 static uint32_t nam_readw (void *opaque, uint32_t addr)
584 AC97LinkState *s = opaque;
586 uint32_t index = addr - s->base[0];
588 val = mixer_load (s, index);
592 static uint32_t nam_readl (void *opaque, uint32_t addr)
594 AC97LinkState *s = opaque;
595 dolog ("U nam readl %#x\n", addr);
604 static void nam_writeb (void *opaque, uint32_t addr, uint32_t val)
606 AC97LinkState *s = opaque;
607 dolog ("U nam writeb %#x <- %#x\n", addr, val);
611 static void nam_writew (void *opaque, uint32_t addr, uint32_t val)
613 AC97LinkState *s = opaque;
614 uint32_t index = addr - s->base[0];
620 case AC97_Powerdown_Ctrl_Stat:
622 val |= mixer_load (s, index) & 0xf;
623 mixer_store (s, index, val);
626 case AC97_Master_Volume_Mute:
627 set_volume (s, index, AUD_MIXER_VOLUME, val);
629 case AC97_PCM_Out_Volume_Mute:
630 set_volume (s, index, AUD_MIXER_PCM, val);
632 case AC97_Line_In_Volume_Mute:
633 set_volume (s, index, AUD_MIXER_LINE_IN, val);
635 case AC97_Record_Select:
636 record_select (s, val);
639 case AC97_Vendor_ID1:
640 case AC97_Vendor_ID2:
641 dolog ("Attempt to write vendor ID to %#x\n", val);
643 case AC97_Extended_Audio_ID:
644 dolog ("Attempt to write extended audio ID to %#x\n", val);
646 case AC97_Extended_Audio_Ctrl_Stat:
647 if (!(val & EACS_VRA)) {
648 mixer_store (s, AC97_PCM_Front_DAC_Rate, 0xbb80);
649 mixer_store (s, AC97_PCM_LR_ADC_Rate, 0xbb80);
650 open_voice (s, PI_INDEX, 48000);
651 open_voice (s, PO_INDEX, 48000);
653 if (!(val & EACS_VRM)) {
654 mixer_store (s, AC97_MIC_ADC_Rate, 0xbb80);
655 open_voice (s, MC_INDEX, 48000);
657 dolog ("Setting extended audio control to %#x\n", val);
658 mixer_store (s, AC97_Extended_Audio_Ctrl_Stat, val);
660 case AC97_PCM_Front_DAC_Rate:
661 if (mixer_load (s, AC97_Extended_Audio_Ctrl_Stat) & EACS_VRA) {
662 mixer_store (s, index, val);
663 dolog ("Set front DAC rate to %d\n", val);
664 open_voice (s, PO_INDEX, val);
667 dolog ("Attempt to set front DAC rate to %d, "
668 "but VRA is not set\n",
672 case AC97_MIC_ADC_Rate:
673 if (mixer_load (s, AC97_Extended_Audio_Ctrl_Stat) & EACS_VRM) {
674 mixer_store (s, index, val);
675 dolog ("Set MIC ADC rate to %d\n", val);
676 open_voice (s, MC_INDEX, val);
679 dolog ("Attempt to set MIC ADC rate to %d, "
680 "but VRM is not set\n",
684 case AC97_PCM_LR_ADC_Rate:
685 if (mixer_load (s, AC97_Extended_Audio_Ctrl_Stat) & EACS_VRA) {
686 mixer_store (s, index, val);
687 dolog ("Set front LR ADC rate to %d\n", val);
688 open_voice (s, PI_INDEX, val);
691 dolog ("Attempt to set LR ADC rate to %d, but VRA is not set\n",
696 dolog ("U nam writew %#x <- %#x\n", addr, val);
697 mixer_store (s, index, val);
702 static void nam_writel (void *opaque, uint32_t addr, uint32_t val)
704 AC97LinkState *s = opaque;
705 dolog ("U nam writel %#x <- %#x\n", addr, val);
710 * Native audio bus master
713 static uint32_t nabm_readb (void *opaque, uint32_t addr)
715 AC97LinkState *s = opaque;
716 AC97BusMasterRegs *r = NULL;
717 uint32_t index = addr - s->base[1];
722 dolog ("CAS %d\n", s->cas);
729 r = &s->bm_regs[GET_BM (index)];
731 dolog ("CIV[%d] -> %#x\n", GET_BM (index), val);
736 r = &s->bm_regs[GET_BM (index)];
738 dolog ("LVI[%d] -> %#x\n", GET_BM (index), val);
743 r = &s->bm_regs[GET_BM (index)];
745 dolog ("PIV[%d] -> %#x\n", GET_BM (index), val);
750 r = &s->bm_regs[GET_BM (index)];
752 dolog ("CR[%d] -> %#x\n", GET_BM (index), val);
757 r = &s->bm_regs[GET_BM (index)];
759 dolog ("SRb[%d] -> %#x\n", GET_BM (index), val);
762 dolog ("U nabm readb %#x -> %#x\n", addr, val);
768 static uint32_t nabm_readw (void *opaque, uint32_t addr)
770 AC97LinkState *s = opaque;
771 AC97BusMasterRegs *r = NULL;
772 uint32_t index = addr - s->base[1];
779 r = &s->bm_regs[GET_BM (index)];
781 dolog ("SR[%d] -> %#x\n", GET_BM (index), val);
786 r = &s->bm_regs[GET_BM (index)];
788 dolog ("PICB[%d] -> %#x\n", GET_BM (index), val);
791 dolog ("U nabm readw %#x -> %#x\n", addr, val);
797 static uint32_t nabm_readl (void *opaque, uint32_t addr)
799 AC97LinkState *s = opaque;
800 AC97BusMasterRegs *r = NULL;
801 uint32_t index = addr - s->base[1];
808 r = &s->bm_regs[GET_BM (index)];
810 dolog ("BMADDR[%d] -> %#x\n", GET_BM (index), val);
815 r = &s->bm_regs[GET_BM (index)];
816 val = r->civ | (r->lvi << 8) | (r->sr << 16);
817 dolog ("CIV LVI SR[%d] -> %#x, %#x, %#x\n", GET_BM (index),
818 r->civ, r->lvi, r->sr);
823 r = &s->bm_regs[GET_BM (index)];
824 val = r->picb | (r->piv << 16) | (r->cr << 24);
825 dolog ("PICB PIV CR[%d] -> %#x %#x %#x %#x\n", GET_BM (index),
826 val, r->picb, r->piv, r->cr);
830 dolog ("glob_cnt -> %#x\n", val);
833 val = s->glob_sta | GS_S0CR;
834 dolog ("glob_sta -> %#x\n", val);
837 dolog ("U nabm readl %#x -> %#x\n", addr, val);
844 * Native audio bus master
847 static void nabm_writeb (void *opaque, uint32_t addr, uint32_t val)
849 AC97LinkState *s = opaque;
850 AC97BusMasterRegs *r = NULL;
851 uint32_t index = addr - s->base[1];
856 r = &s->bm_regs[GET_BM (index)];
857 if ((r->cr & CR_RPBM) && (r->sr & SR_DCH)) {
858 r->sr &= ~(SR_DCH | SR_CELV);
860 r->piv = (r->piv + 1) % 32;
864 dolog ("LVI[%d] <- %#x\n", GET_BM (index), val);
869 r = &s->bm_regs[GET_BM (index)];
871 reset_bm_regs (s, r);
874 r->cr = val & CR_VALID_MASK;
875 if (!(r->cr & CR_RPBM)) {
876 voice_set_active (s, r - s->bm_regs, 0);
881 r->piv = (r->piv + 1) % 32;
884 voice_set_active (s, r - s->bm_regs, 1);
887 dolog ("CR[%d] <- %#x (cr %#x)\n", GET_BM (index), val, r->cr);
892 r = &s->bm_regs[GET_BM (index)];
893 r->sr |= val & ~(SR_RO_MASK | SR_WCLEAR_MASK);
894 update_sr (s, r, r->sr & ~(val & SR_WCLEAR_MASK));
895 dolog ("SR[%d] <- %#x (sr %#x)\n", GET_BM (index), val, r->sr);
898 dolog ("U nabm writeb %#x <- %#x\n", addr, val);
903 static void nabm_writew (void *opaque, uint32_t addr, uint32_t val)
905 AC97LinkState *s = opaque;
906 AC97BusMasterRegs *r = NULL;
907 uint32_t index = addr - s->base[1];
912 r = &s->bm_regs[GET_BM (index)];
913 r->sr |= val & ~(SR_RO_MASK | SR_WCLEAR_MASK);
914 update_sr (s, r, r->sr & ~(val & SR_WCLEAR_MASK));
915 dolog ("SR[%d] <- %#x (sr %#x)\n", GET_BM (index), val, r->sr);
918 dolog ("U nabm writew %#x <- %#x\n", addr, val);
923 static void nabm_writel (void *opaque, uint32_t addr, uint32_t val)
925 AC97LinkState *s = opaque;
926 AC97BusMasterRegs *r = NULL;
927 uint32_t index = addr - s->base[1];
932 r = &s->bm_regs[GET_BM (index)];
934 dolog ("BDBAR[%d] <- %#x (bdbar %#x)\n",
935 GET_BM (index), val, r->bdbar);
942 if (!(val & (GC_WR | GC_CR)))
943 s->glob_cnt = val & GC_VALID_MASK;
944 dolog ("glob_cnt <- %#x (glob_cnt %#x)\n", val, s->glob_cnt);
947 s->glob_sta &= ~(val & GS_WCLEAR_MASK);
948 s->glob_sta |= (val & ~(GS_WCLEAR_MASK | GS_RO_MASK)) & GS_VALID_MASK;
949 dolog ("glob_sta <- %#x (glob_sta %#x)\n", val, s->glob_sta);
952 dolog ("U nabm writel %#x <- %#x\n", addr, val);
957 static int write_audio (AC97LinkState *s, AC97BusMasterRegs *r,
960 uint8_t tmpbuf[4096];
961 uint32_t addr = r->bd.addr;
962 uint32_t temp = r->picb << 1;
963 uint32_t written = 0;
965 temp = audio_MIN (temp, max);
974 to_copy = audio_MIN (temp, sizeof (tmpbuf));
975 cpu_physical_memory_read (addr, tmpbuf, to_copy);
976 copied = AUD_write (s->voice_po, tmpbuf, to_copy);
977 dolog ("write_audio max=%x to_copy=%x copied=%x\n",
978 max, to_copy, copied);
994 s->last_samp = *(uint32_t *) &tmpbuf[to_copy - 4];
1002 static void write_bup (AC97LinkState *s, int elapsed)
1004 dolog ("write_bup\n");
1005 if (!(s->bup_flag & BUP_SET)) {
1006 if (s->bup_flag & BUP_LAST) {
1008 uint8_t *p = s->silence;
1009 for (i = 0; i < sizeof (s->silence) / 4; i++, p += 4) {
1010 *(uint32_t *) p = s->last_samp;
1014 memset (s->silence, 0, sizeof (s->silence));
1016 s->bup_flag |= BUP_SET;
1020 int temp = audio_MIN (elapsed, sizeof (s->silence));
1022 int copied = AUD_write (s->voice_po, s->silence, temp);
1031 static int read_audio (AC97LinkState *s, AC97BusMasterRegs *r,
1034 uint8_t tmpbuf[4096];
1035 uint32_t addr = r->bd.addr;
1036 uint32_t temp = r->picb << 1;
1039 SWVoiceIn *voice = (r - s->bm_regs) == MC_INDEX ? s->voice_mc : s->voice_pi;
1041 temp = audio_MIN (temp, max);
1050 to_copy = audio_MIN (temp, sizeof (tmpbuf));
1051 acquired = AUD_read (voice, tmpbuf, to_copy);
1056 cpu_physical_memory_write (addr, tmpbuf, acquired);
1066 static void transfer_audio (AC97LinkState *s, int index, int elapsed)
1068 AC97BusMasterRegs *r = &s->bm_regs[index];
1071 if (s->invalid_freq[index]) {
1072 AUD_log ("ac97", "attempt to use voice %d with invalid frequency %d\n",
1073 index, s->invalid_freq[index]);
1077 if (r->sr & SR_DCH) {
1078 if (r->cr & CR_RPBM) {
1081 write_bup (s, elapsed);
1088 while ((elapsed >> 1) && !stop) {
1092 dolog ("invalid bd\n");
1097 dolog ("fresh bd %d is empty %#x %#x\n",
1098 r->civ, r->bd.addr, r->bd.ctl_len);
1099 if (r->civ == r->lvi) {
1100 r->sr |= SR_DCH; /* CELV? */
1106 r->piv = (r->piv + 1) % 32;
1113 temp = write_audio (s, r, elapsed, &stop);
1115 r->picb -= (temp >> 1);
1120 temp = read_audio (s, r, elapsed, &stop);
1122 r->picb -= (temp >> 1);
1127 uint32_t new_sr = r->sr & ~SR_CELV;
1129 if (r->bd.ctl_len & BD_IOC) {
1133 if (r->civ == r->lvi) {
1134 dolog ("Underrun civ (%d) == lvi (%d)\n", r->civ, r->lvi);
1136 new_sr |= SR_LVBCI | SR_DCH | SR_CELV;
1138 s->bup_flag = (r->bd.ctl_len & BD_BUP) ? BUP_LAST : 0;
1142 r->piv = (r->piv + 1) % 32;
1146 update_sr (s, r, new_sr);
1151 static void pi_callback (void *opaque, int avail)
1153 transfer_audio (opaque, PI_INDEX, avail);
1156 static void mc_callback (void *opaque, int avail)
1158 transfer_audio (opaque, MC_INDEX, avail);
1161 static void po_callback (void *opaque, int free)
1163 transfer_audio (opaque, PO_INDEX, free);
1166 static const VMStateDescription vmstate_ac97_bm_regs = {
1167 .name = "ac97_bm_regs",
1169 .minimum_version_id = 1,
1170 .minimum_version_id_old = 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()
1186 static int ac97_post_load (void *opaque, int version_id)
1188 uint8_t active[LAST_INDEX];
1189 AC97LinkState *s = opaque;
1192 record_select (s, mixer_load (s, AC97_Record_Select));
1193 #define V_(a, b) set_volume (s, a, b, mixer_load (s, a))
1194 V_ (AC97_Master_Volume_Mute, AUD_MIXER_VOLUME);
1195 V_ (AC97_PCM_Out_Volume_Mute, AUD_MIXER_PCM);
1196 V_ (AC97_Line_In_Volume_Mute, AUD_MIXER_LINE_IN);
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);
1209 static bool is_version_2 (void *opaque, int version_id)
1211 return version_id == 2;
1214 static const VMStateDescription vmstate_ac97 = {
1217 .minimum_version_id = 2,
1218 .minimum_version_id_old = 2,
1219 .post_load = ac97_post_load,
1220 .fields = (VMStateField []) {
1221 VMSTATE_PCI_DEVICE(dev, AC97LinkState),
1222 VMSTATE_UINT32(glob_cnt, AC97LinkState),
1223 VMSTATE_UINT32(glob_sta, AC97LinkState),
1224 VMSTATE_UINT32(cas, AC97LinkState),
1225 VMSTATE_STRUCT_ARRAY(bm_regs, AC97LinkState, 3, 1,
1226 vmstate_ac97_bm_regs, AC97BusMasterRegs),
1227 VMSTATE_BUFFER(mixer_data, AC97LinkState),
1228 VMSTATE_UNUSED_TEST(is_version_2, 3),
1229 VMSTATE_END_OF_LIST()
1233 static void ac97_map (PCIDevice *pci_dev, int region_num,
1234 pcibus_t addr, pcibus_t size, int type)
1236 AC97LinkState *s = DO_UPCAST (AC97LinkState, dev, pci_dev);
1237 PCIDevice *d = &s->dev;
1241 register_ioport_read (addr, 256 * 1, 1, nam_readb, d);
1242 register_ioport_read (addr, 256 * 2, 2, nam_readw, d);
1243 register_ioport_read (addr, 256 * 4, 4, nam_readl, d);
1244 register_ioport_write (addr, 256 * 1, 1, nam_writeb, d);
1245 register_ioport_write (addr, 256 * 2, 2, nam_writew, d);
1246 register_ioport_write (addr, 256 * 4, 4, nam_writel, d);
1250 register_ioport_read (addr, 64 * 1, 1, nabm_readb, d);
1251 register_ioport_read (addr, 64 * 2, 2, nabm_readw, d);
1252 register_ioport_read (addr, 64 * 4, 4, nabm_readl, d);
1253 register_ioport_write (addr, 64 * 1, 1, nabm_writeb, d);
1254 register_ioport_write (addr, 64 * 2, 2, nabm_writew, d);
1255 register_ioport_write (addr, 64 * 4, 4, nabm_writel, d);
1259 static void ac97_on_reset (void *opaque)
1261 AC97LinkState *s = opaque;
1263 reset_bm_regs (s, &s->bm_regs[0]);
1264 reset_bm_regs (s, &s->bm_regs[1]);
1265 reset_bm_regs (s, &s->bm_regs[2]);
1268 * Reset the mixer too. The Windows XP driver seems to rely on
1269 * this. At least it wants to read the vendor id before it resets
1270 * the codec manually.
1275 static int ac97_initfn (PCIDevice *dev)
1277 AC97LinkState *s = DO_UPCAST (AC97LinkState, dev, dev);
1278 uint8_t *c = s->dev.config;
1280 /* TODO: no need to override */
1281 c[PCI_COMMAND] = 0x00; /* pcicmd pci command rw, ro */
1282 c[PCI_COMMAND + 1] = 0x00;
1285 c[PCI_STATUS] = PCI_STATUS_FAST_BACK; /* pcists pci status rwc, ro */
1286 c[PCI_STATUS + 1] = PCI_STATUS_DEVSEL_MEDIUM >> 8;
1288 c[PCI_CLASS_PROG] = 0x00; /* pi programming interface ro */
1290 /* TODO set when bar is registered. no need to override. */
1291 /* nabmar native audio mixer base address rw */
1292 c[PCI_BASE_ADDRESS_0] = PCI_BASE_ADDRESS_SPACE_IO;
1293 c[PCI_BASE_ADDRESS_0 + 1] = 0x00;
1294 c[PCI_BASE_ADDRESS_0 + 2] = 0x00;
1295 c[PCI_BASE_ADDRESS_0 + 3] = 0x00;
1297 /* TODO set when bar is registered. no need to override. */
1298 /* nabmbar native audio bus mastering base address rw */
1299 c[PCI_BASE_ADDRESS_0 + 4] = PCI_BASE_ADDRESS_SPACE_IO;
1300 c[PCI_BASE_ADDRESS_0 + 5] = 0x00;
1301 c[PCI_BASE_ADDRESS_0 + 6] = 0x00;
1302 c[PCI_BASE_ADDRESS_0 + 7] = 0x00;
1304 c[PCI_SUBSYSTEM_VENDOR_ID] = 0x86; /* svid subsystem vendor id rwo */
1305 c[PCI_SUBSYSTEM_VENDOR_ID + 1] = 0x80;
1307 c[PCI_SUBSYSTEM_ID] = 0x00; /* sid subsystem id rwo */
1308 c[PCI_SUBSYSTEM_ID + 1] = 0x00;
1310 c[PCI_INTERRUPT_LINE] = 0x00; /* intr_ln interrupt line rw */
1311 /* TODO: RST# value should be 0. */
1312 c[PCI_INTERRUPT_PIN] = 0x01; /* intr_pn interrupt pin ro */
1314 pci_register_bar (&s->dev, 0, 256 * 4, PCI_BASE_ADDRESS_SPACE_IO,
1316 pci_register_bar (&s->dev, 1, 64 * 4, PCI_BASE_ADDRESS_SPACE_IO, ac97_map);
1317 qemu_register_reset (ac97_on_reset, s);
1318 AUD_register_card ("ac97", &s->card);
1323 int ac97_init (PCIBus *bus)
1325 pci_create_simple (bus, -1, "AC97");
1329 static PCIDeviceInfo ac97_info = {
1330 .qdev.name = "AC97",
1331 .qdev.desc = "Intel 82801AA AC97 Audio",
1332 .qdev.size = sizeof (AC97LinkState),
1333 .qdev.vmsd = &vmstate_ac97,
1334 .init = ac97_initfn,
1335 .vendor_id = PCI_VENDOR_ID_INTEL,
1336 .device_id = PCI_DEVICE_ID_INTEL_82801AA_5,
1338 .class_id = PCI_CLASS_MULTIMEDIA_AUDIO,
1341 static void ac97_register (void)
1343 pci_qdev_register (&ac97_info);
1345 device_init (ac97_register);