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ALSA: hda: Virtualize SPDIF out controls

Browse Source 
The SPDIF output controls apply to converter widgets. A future change
will create a PCM device per pin widget, and hence a set of SPDIF output
controls per pin widget, for certain HDMI codecs. To support this, we
need the ability to virtualize the SPDIF output controls. Specifically:

* Controls can be "unassigned" from real hardware when a converter is
  not used for the PCM the control was created for.
* Control puts only write to hardware when they are assigned.
* Controls can be "assigned" to real hardware when a converter is picked
  to support output for a particular PCM.
* When a converter is assigned, the hardware is updated to the cached
  configuration.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Stephen Warren 2011-06-01 11:14:18 -06:00 committed by Takashi Iwai
parent 7c93597627
commit 74b654c957
12 changed files with 69 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
sound/pci/hda/hda_codec.c
View File

@ -2663,10 +2663,8 @@ static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
val |= spdif->ctls & 1;
change = spdif->ctls != val;
spdif->ctls = val;
if (change)
if (change && nid != (u16)-1)
set_dig_out_convert(codec, nid, val & 0xff, (val >> 8) & 0xff);
mutex_unlock(&codec->spdif_mutex);
return change;
}
@ -2684,6 +2682,17 @@ static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
return 0;
}
static inline void set_spdif_ctls(struct hda_codec *codec, hda_nid_t nid,
int dig1, int dig2)
{
set_dig_out_convert(codec, nid, dig1, dig2);
/* unmute amp switch (if any) */
if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
(dig1 & AC_DIG1_ENABLE))
snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
HDA_AMP_MUTE, 0);
}
static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
@ -2699,15 +2708,9 @@ static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
if (ucontrol->value.integer.value[0])
val |= AC_DIG1_ENABLE;
change = spdif->ctls != val;
if (change) {
spdif->ctls = val;
set_dig_out_convert(codec, nid, val & 0xff, -1);
/* unmute amp switch (if any) */
if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
(val & AC_DIG1_ENABLE))
snd_hda_codec_amp_stereo(codec, nid, HDA_OUTPUT, 0,
HDA_AMP_MUTE, 0);
}
spdif->ctls = val;
if (change && nid != (u16)-1)
set_spdif_ctls(codec, nid, val & 0xff, -1);
mutex_unlock(&codec->spdif_mutex);
return change;
}
@ -2754,7 +2757,9 @@ static struct snd_kcontrol_new dig_mixes[] = {
*
* Returns 0 if successful, or a negative error code.
*/
int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid)
int snd_hda_create_spdif_out_ctls(struct hda_codec *codec,
hda_nid_t associated_nid,
hda_nid_t cvt_nid)
{
int err;
struct snd_kcontrol *kctl;
@ -2774,12 +2779,12 @@ int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid)
return -ENOMEM;
kctl->id.index = idx;
kctl->private_value = codec->spdif_out.used - 1;
err = snd_hda_ctl_add(codec, nid, kctl);
err = snd_hda_ctl_add(codec, associated_nid, kctl);
if (err < 0)
return err;
}
spdif->nid = nid;
spdif->ctls = snd_hda_codec_read(codec, nid, 0,
spdif->nid = cvt_nid;
spdif->ctls = snd_hda_codec_read(codec, cvt_nid, 0,
AC_VERB_GET_DIGI_CONVERT_1, 0);
spdif->status = convert_to_spdif_status(spdif->ctls);
return 0;
@ -2800,6 +2805,31 @@ struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
}
EXPORT_SYMBOL_HDA(snd_hda_spdif_out_of_nid);
void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx)
{
struct hda_spdif_out *spdif = snd_array_elem(&codec->spdif_out, idx);
mutex_lock(&codec->spdif_mutex);
spdif->nid = (u16)-1;
mutex_unlock(&codec->spdif_mutex);
}
EXPORT_SYMBOL_HDA(snd_hda_spdif_ctls_unassign);
void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid)
{
struct hda_spdif_out *spdif = snd_array_elem(&codec->spdif_out, idx);
unsigned short val;
mutex_lock(&codec->spdif_mutex);
if (spdif->nid != nid) {
spdif->nid = nid;
val = spdif->ctls;
set_spdif_ctls(codec, nid, val & 0xff, (val >> 8) & 0xff);
}
mutex_unlock(&codec->spdif_mutex);
}
EXPORT_SYMBOL_HDA(snd_hda_spdif_ctls_assign);
/*
* SPDIF sharing with analog output
*/

2
sound/pci/hda/hda_codec.h
View File

@ -954,6 +954,8 @@ struct hda_spdif_out {
};
struct hda_spdif_out *snd_hda_spdif_out_of_nid(struct hda_codec *codec,
hda_nid_t nid);
void snd_hda_spdif_ctls_unassign(struct hda_codec *codec, int idx);
void snd_hda_spdif_ctls_assign(struct hda_codec *codec, int idx, hda_nid_t nid);
/*
* Mixer

4
sound/pci/hda/hda_local.h
View File

@ -212,7 +212,9 @@ int snd_hda_mixer_bind_tlv(struct snd_kcontrol *kcontrol, int op_flag,
/*
* SPDIF I/O
*/
int snd_hda_create_spdif_out_ctls(struct hda_codec *codec, hda_nid_t nid);
int snd_hda_create_spdif_out_ctls(struct hda_codec *codec,
hda_nid_t associated_nid,
hda_nid_t cvt_nid);
int snd_hda_create_spdif_in_ctls(struct hda_codec *codec, hda_nid_t nid);
/*

4
sound/pci/hda/patch_analog.c
View File

@ -213,7 +213,9 @@ static int ad198x_build_controls(struct hda_codec *codec)
return err;
}
if (spec->multiout.dig_out_nid) {
err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
err = snd_hda_create_spdif_out_ctls(codec,
spec->multiout.dig_out_nid,
spec->multiout.dig_out_nid);
if (err < 0)
return err;
err = snd_hda_create_spdif_share_sw(codec,

3
sound/pci/hda/patch_ca0110.c
View File

@ -240,7 +240,8 @@ static int ca0110_build_controls(struct hda_codec *codec)
}
if (spec->dig_out) {
err = snd_hda_create_spdif_out_ctls(codec, spec->dig_out);
err = snd_hda_create_spdif_out_ctls(codec, spec->dig_out,
spec->dig_out);
if (err < 0)
return err;
err = snd_hda_create_spdif_share_sw(codec, &spec->multiout);

3
sound/pci/hda/patch_cirrus.c
View File

@ -821,7 +821,8 @@ static int build_digital_output(struct hda_codec *codec)
if (!spec->multiout.dig_out_nid)
return 0;
err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid,
spec->multiout.dig_out_nid);
if (err < 0)
return err;
err = snd_hda_create_spdif_share_sw(codec, &spec->multiout);

4
sound/pci/hda/patch_cmedia.c
View File

@ -327,7 +327,9 @@ static int cmi9880_build_controls(struct hda_codec *codec)
return err;
}
if (spec->multiout.dig_out_nid) {
err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
err = snd_hda_create_spdif_out_ctls(codec,
spec->multiout.dig_out_nid,
spec->multiout.dig_out_nid);
if (err < 0)
return err;
err = snd_hda_create_spdif_share_sw(codec,

1
sound/pci/hda/patch_conexant.c
View File

@ -510,6 +510,7 @@ static int conexant_build_controls(struct hda_codec *codec)
}
if (spec->multiout.dig_out_nid) {
err = snd_hda_create_spdif_out_ctls(codec,
spec->multiout.dig_out_nid,
spec->multiout.dig_out_nid);
if (err < 0)
return err;

3
sound/pci/hda/patch_hdmi.c
View File

@ -1095,7 +1095,8 @@ static int generic_hdmi_build_controls(struct hda_codec *codec)
int i;
for (i = 0; i < codec->num_pcms; i++) {
err = snd_hda_create_spdif_out_ctls(codec, spec->cvt[i]);
err = snd_hda_create_spdif_out_ctls(codec, spec->cvt[i],
spec->cvt[i]);
if (err < 0)
return err;
}

1
sound/pci/hda/patch_realtek.c
View File

@ -3217,6 +3217,7 @@ static int alc_build_controls(struct hda_codec *codec)
}
if (spec->multiout.dig_out_nid) {
err = snd_hda_create_spdif_out_ctls(codec,
spec->multiout.dig_out_nid,
spec->multiout.dig_out_nid);
if (err < 0)
return err;

4
sound/pci/hda/patch_sigmatel.c
View File

@ -1112,7 +1112,9 @@ static int stac92xx_build_controls(struct hda_codec *codec)
}
if (spec->multiout.dig_out_nid) {
err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid);
err = snd_hda_create_spdif_out_ctls(codec,
spec->multiout.dig_out_nid,
spec->multiout.dig_out_nid);
if (err < 0)
return err;
err = snd_hda_create_spdif_share_sw(codec,

1
sound/pci/hda/patch_via.c
View File

@ -1497,6 +1497,7 @@ static int via_build_controls(struct hda_codec *codec)
if (spec->multiout.dig_out_nid) {
err = snd_hda_create_spdif_out_ctls(codec,
spec->multiout.dig_out_nid,
spec->multiout.dig_out_nid);
if (err < 0)
return err;