ALSA: hda - Return the created kcontrol in __snd_hda_add_vmaster()
It'll be used for adding hooks in later patches. Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -2399,6 +2399,7 @@ static int init_slave_unmute(void *data, struct snd_kcontrol *slave)
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* @slaves: slave control names (optional)
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* @suffix: suffix string to each slave name (optional)
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* @init_slave_vol: initialize slaves to unmute/0dB
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* @ctl_ret: store the vmaster kcontrol in return
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*
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* Create a virtual master control with the given name. The TLV data
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* must be either NULL or a valid data.
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@ -2411,11 +2412,15 @@ static int init_slave_unmute(void *data, struct snd_kcontrol *slave)
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*/
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int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
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unsigned int *tlv, const char * const *slaves,
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const char *suffix, bool init_slave_vol)
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const char *suffix, bool init_slave_vol,
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struct snd_kcontrol **ctl_ret)
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{
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struct snd_kcontrol *kctl;
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int err;
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if (ctl_ret)
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*ctl_ret = NULL;
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err = map_slaves(codec, slaves, suffix, check_slave_present, NULL);
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if (err != 1) {
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snd_printdd("No slave found for %s\n", name);
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@ -2439,6 +2444,8 @@ int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
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map_slaves(codec, slaves, suffix,
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tlv ? init_slave_0dB : init_slave_unmute, kctl);
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if (ctl_ret)
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*ctl_ret = kctl;
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return 0;
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}
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EXPORT_SYMBOL_HDA(__snd_hda_add_vmaster);
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@ -140,10 +140,11 @@ void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
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struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
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const char *name);
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int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
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unsigned int *tlv, const char * const *slaves,
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const char *suffix, bool init_slave_vol);
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unsigned int *tlv, const char * const *slaves,
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const char *suffix, bool init_slave_vol,
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struct snd_kcontrol **ctl_ret);
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#define snd_hda_add_vmaster(codec, name, tlv, slaves, suffix) \
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__snd_hda_add_vmaster(codec, name, tlv, slaves, suffix, true)
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__snd_hda_add_vmaster(codec, name, tlv, slaves, suffix, true, NULL)
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int snd_hda_codec_reset(struct hda_codec *codec);
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/* amp value bits */
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@ -229,7 +229,7 @@ static int ad198x_build_controls(struct hda_codec *codec)
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(spec->slave_vols ?
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spec->slave_vols : ad_slave_pfxs),
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"Playback Volume",
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!spec->avoid_init_slave_vol);
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!spec->avoid_init_slave_vol, NULL);
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if (err < 0)
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return err;
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}
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