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ac97: Disable pi/mc reads for now

This commit is contained in:
Matt Borgerson 2025-01-14 23:42:03 -07:00 committed by mborgerson
parent 0eddb3ead9
commit 6de26b0c2c
1 changed files with 27 additions and 0 deletions
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27
hw/audio/ac97.c
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@ -149,8 +149,11 @@ typedef struct AC97DeviceState {
OBJECT_CHECK(AC97DeviceState, (obj), "AC97")
static void po_callback(void *opaque, int free);
#ifndef XBOX
static void pi_callback(void *opaque, int avail);
static void mc_callback(void *opaque, int avail);
#endif
static void fetch_bd(AC97LinkState *s, AC97BusMasterRegs *r)
{
@ -218,7 +221,9 @@ static void voice_set_active(AC97LinkState *s, int bm_index, int on)
{
switch (bm_index) {
case PI_INDEX:
#ifndef XBOX
AUD_set_active_in(s->voice_pi, on);
#endif
break;
case PO_INDEX:
@ -226,7 +231,9 @@ static void voice_set_active(AC97LinkState *s, int bm_index, int on)
break;
case MC_INDEX:
#ifndef XBOX
AUD_set_active_in(s->voice_mc, on);
#endif
break;
case SO_INDEX:
@ -294,6 +301,7 @@ static void open_voice(AC97LinkState *s, int index, int freq)
s->invalid_freq[index] = 0;
switch (index) {
case PI_INDEX:
#ifndef XBOX
s->voice_pi = AUD_open_in(
&s->card,
s->voice_pi,
@ -302,6 +310,7 @@ static void open_voice(AC97LinkState *s, int index, int freq)
pi_callback,
&as
);
#endif
break;
case PO_INDEX:
@ -316,6 +325,7 @@ static void open_voice(AC97LinkState *s, int index, int freq)
break;
case MC_INDEX:
#ifndef XBOX
s->voice_mc = AUD_open_in(
&s->card,
s->voice_mc,
@ -324,6 +334,7 @@ static void open_voice(AC97LinkState *s, int index, int freq)
mc_callback,
&as
);
#endif
break;
case SO_INDEX:
@ -333,7 +344,9 @@ static void open_voice(AC97LinkState *s, int index, int freq)
s->invalid_freq[index] = freq;
switch (index) {
case PI_INDEX:
#ifndef XBOX
AUD_close_in(&s->card, s->voice_pi);
#endif
s->voice_pi = NULL;
break;
@ -343,7 +356,9 @@ static void open_voice(AC97LinkState *s, int index, int freq)
break;
case MC_INDEX:
#ifndef XBOX
AUD_close_in(&s->card, s->voice_mc);
#endif
s->voice_mc = NULL;
break;
@ -357,17 +372,21 @@ static void reset_voices(AC97LinkState *s, uint8_t active[LAST_INDEX])
{
uint16_t freq;
#ifndef XBOX
freq = mixer_load(s, AC97_PCM_LR_ADC_Rate);
open_voice(s, PI_INDEX, freq);
AUD_set_active_in(s->voice_pi, active[PI_INDEX]);
#endif
freq = mixer_load(s, AC97_PCM_Front_DAC_Rate);
open_voice(s, PO_INDEX, freq);
AUD_set_active_out(s->voice_po, active[PO_INDEX]);
#ifndef XBOX
freq = mixer_load(s, AC97_MIC_ADC_Rate);
open_voice(s, MC_INDEX, freq);
AUD_set_active_in(s->voice_mc, active[MC_INDEX]);
#endif
}
static void get_volume(uint16_t vol, uint16_t mask, int inverse,
@ -408,7 +427,9 @@ static void update_volume_in(AC97LinkState *s)
get_volume(mixer_load(s, AC97_Record_Gain_Mute), 0x0f, 0,
&mute, &lvol, &rvol);
#ifndef XBOX
AUD_set_volume_in(s->voice_pi, mute, lvol, rvol);
#endif
}
static void set_volume(AC97LinkState *s, int index, uint32_t val)
@ -972,6 +993,10 @@ static int read_audio(AC97LinkState *s, AC97BusMasterRegs *r,
int to_copy = 0;
SWVoiceIn *voice = (r - s->bm_regs) == MC_INDEX ? s->voice_mc : s->voice_pi;
#ifdef XBOX
return 0;
#endif
temp = MIN(temp, max);
if (!temp) {
@ -1081,6 +1106,7 @@ static void transfer_audio(AC97LinkState *s, int index, int elapsed)
}
}
#ifndef XBOX
static void pi_callback(void *opaque, int avail)
{
transfer_audio(opaque, PI_INDEX, avail);
@ -1090,6 +1116,7 @@ static void mc_callback(void *opaque, int avail)
{
transfer_audio(opaque, MC_INDEX, avail);
}
#endif
static void po_callback(void *opaque, int free)
{