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Clean-up/rewrite audio over I^2S support.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3704 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
balrog 2007-11-19 03:43:51 +00:00
parent 79b0241756
commit 73560bc8e3
3 changed files with 236 additions and 119 deletions
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56
hw/tsc210x.c
View file

@ -283,24 +283,13 @@ static void tsc210x_audio_out_cb(struct tsc210x_state_s *s, int free_b)
qemu_irq_raise(s->codec.tx_start);
}
static void tsc2102_audio_set_format(struct tsc210x_state_s *s)
static void tsc2102_audio_rate_update(struct tsc210x_state_s *s)
{
int enable;
const struct tsc210x_rate_info_s *rate;
audsettings_t fmt;
if (s->dac_voice[0]) {
tsc210x_out_flush(s, s->codec.out.len);
s->codec.out.size = 0;
AUD_set_active_out(s->dac_voice[0], 0);
AUD_close_out(&s->card, s->dac_voice[0]);
s->dac_voice[0] = 0;
}
enable =
(~s->dac_power & (1 << 15)) && /* PWDNC */
(~s->dac_power & (1 << 10)); /* DAPWDN */
if (!enable)
s->codec.tx_rate = 0;
s->codec.rx_rate = 0;
if (s->dac_power & (1 << 15)) /* PWDNC */
return;
for (rate = tsc2102_rates; rate->rate; rate ++)
@ -312,16 +301,41 @@ static void tsc2102_audio_set_format(struct tsc210x_state_s *s)
return;
}
s->codec.tx_rate = rate->rate;
}
static void tsc2102_audio_output_update(struct tsc210x_state_s *s)
{
int enable;
audsettings_t fmt;
if (s->dac_voice[0]) {
tsc210x_out_flush(s, s->codec.out.len);
s->codec.out.size = 0;
AUD_set_active_out(s->dac_voice[0], 0);
AUD_close_out(&s->card, s->dac_voice[0]);
s->dac_voice[0] = 0;
}
s->codec.cts = 0;
enable =
(~s->dac_power & (1 << 15)) && /* PWDNC */
(~s->dac_power & (1 << 10)); /* DAPWDN */
if (!enable || !s->codec.tx_rate)
return;
/* Force our own sampling rate even in slave DAC mode */
fmt.endianness = 0;
fmt.nchannels = 2;
fmt.freq = rate->rate;
fmt.freq = s->codec.tx_rate;
fmt.fmt = AUD_FMT_S16;
s->dac_voice[0] = AUD_open_out(&s->card, s->dac_voice[0],
"tsc2102.sink", s, (void *) tsc210x_audio_out_cb, &fmt);
if (s->dac_voice[0])
if (s->dac_voice[0]) {
s->codec.cts = 1;
AUD_set_active_out(s->dac_voice[0], 1);
}
}
static uint16_t tsc2102_data_register_read(struct tsc210x_state_s *s, int reg)
@ -587,8 +601,9 @@ static void tsc2102_audio_register_write(
fprintf(stderr, "tsc2102_audio_register_write: "
"wrong value written into Audio 1\n");
#endif
tsc2102_audio_rate_update(s);
if (s->audio)
tsc2102_audio_set_format(s);
tsc2102_audio_output_update(s);
return;
case 0x01:
@ -631,8 +646,9 @@ static void tsc2102_audio_register_write(
fprintf(stderr, "tsc2102_audio_register_write: "
"wrong value written into Power\n");
#endif
tsc2102_audio_rate_update(s);
if (s->audio)
tsc2102_audio_set_format(s);
tsc2102_audio_output_update(s);
return;
case 0x06: /* Audio Control 3 */
@ -644,7 +660,7 @@ static void tsc2102_audio_register_write(
"wrong value written into Audio 3\n");
#endif
if (s->audio)
tsc2102_audio_set_format(s);
tsc2102_audio_output_update(s);
return;
case 0x07: /* LCH_BASS_BOOST_N0 */