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ALSA: hda - unmute pin amplifier in infoframe setup for Haswell 

When Gfx driver reconnects a port and transcoder, the pin amplifier will
be muted. To enable sound, the pin amp need to be unmuted.

This patch
- moves pin amp unmuting from stream preparing to hdmi_setup_audio_infoframe().
  So if port:transcoder reconnection happens during stream playback, the ELDV
  unsol event can stil trigger pin's amp unmuting when re-setting up audio
  info frame.

- remove reading pin amp status before unmuting for speed-up, since pin amp
  should always be unmuted.

- rename haswell_verify_pin_D0() to haswell_verify_D0(), since the convertor
  power state is also fixed here.

This patch is mostly based on suggestion of David Henningsson.

Cc: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Mengdong Lin 2013-09-04 16:37:12 -04:00 committed by Takashi Iwai
parent fb87fa3a79
commit 58f7d28da6
1 changed files with 9 additions and 27 deletions
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36
sound/pci/hda/patch_hdmi.c
View File

@ -896,6 +896,11 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
if (!channels)
return;
if (is_haswell(codec))
snd_hda_codec_write(codec, pin_nid, 0,
AC_VERB_SET_AMP_GAIN_MUTE,
AMP_OUT_UNMUTE);
eld = &per_pin->sink_eld;
if (!eld->monitor_present)
return;
@ -1035,10 +1040,10 @@ static void hdmi_unsol_event(struct hda_codec *codec, unsigned int res)
hdmi_non_intrinsic_event(codec, res);
}
static void haswell_verify_pin_D0(struct hda_codec *codec,
static void haswell_verify_D0(struct hda_codec *codec,
hda_nid_t cvt_nid, hda_nid_t nid)
{
int pwr, lamp, ramp;
int pwr;
/* For Haswell, the converter 1/2 may keep in D3 state after bootup,
* thus pins could only choose converter 0 for use. Make sure the
@ -1054,25 +1059,6 @@ static void haswell_verify_pin_D0(struct hda_codec *codec,
pwr = (pwr & AC_PWRST_ACTUAL) >> AC_PWRST_ACTUAL_SHIFT;
snd_printd("Haswell HDMI audio: Power for pin 0x%x is now D%d\n", nid, pwr);
}
lamp = snd_hda_codec_read(codec, nid, 0,
AC_VERB_GET_AMP_GAIN_MUTE,
AC_AMP_GET_LEFT | AC_AMP_GET_OUTPUT);
ramp = snd_hda_codec_read(codec, nid, 0,
AC_VERB_GET_AMP_GAIN_MUTE,
AC_AMP_GET_RIGHT | AC_AMP_GET_OUTPUT);
if (lamp != ramp) {
snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE,
AC_AMP_SET_RIGHT | AC_AMP_SET_OUTPUT | lamp);
lamp = snd_hda_codec_read(codec, nid, 0,
AC_VERB_GET_AMP_GAIN_MUTE,
AC_AMP_GET_LEFT | AC_AMP_GET_OUTPUT);
ramp = snd_hda_codec_read(codec, nid, 0,
AC_VERB_GET_AMP_GAIN_MUTE,
AC_AMP_GET_RIGHT | AC_AMP_GET_OUTPUT);
snd_printd("Haswell HDMI audio: Mute after set on pin 0x%x: [0x%x 0x%x]\n", nid, lamp, ramp);
}
}
/*
@ -1090,7 +1076,7 @@ static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
int new_pinctl = 0;
if (is_haswell(codec))
haswell_verify_pin_D0(codec, cvt_nid, pin_nid);
haswell_verify_D0(codec, cvt_nid, pin_nid);
if (snd_hda_query_pin_caps(codec, pin_nid) & AC_PINCAP_HBR) {
pinctl = snd_hda_codec_read(codec, pin_nid, 0,
@ -1361,13 +1347,9 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
* changed during the stream playback
*/
if (is_haswell(codec) &&
eld->eld_valid && !old_eld_valid && per_pin->setup) {
snd_hda_codec_write(codec, pin_nid, 0,
AC_VERB_SET_AMP_GAIN_MUTE,
AMP_OUT_UNMUTE);
eld->eld_valid && !old_eld_valid && per_pin->setup)
hdmi_setup_audio_infoframe(codec, per_pin,
per_pin->non_pcm);
}
}
mutex_unlock(&pin_eld->lock);