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authorTakashi Iwai <tiwai@suse.de>2012-03-12 15:25:03 +0400
committerTakashi Iwai <tiwai@suse.de>2012-03-12 17:52:28 +0400
commit29e5853d618282d8277ce8a8304f7424eb60deb5 (patch)
treee6f2990534e3656f9bbdc1a13cb3fc3cf41934c9 /sound
parent2ad787e9aae8bfac14fa96748c0f2b034577be6a (diff)
downloadlinux-29e5853d618282d8277ce8a8304f7424eb60deb5.tar.xz
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>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/hda_codec.c9
-rw-r--r--sound/pci/hda/hda_local.h7
-rw-r--r--sound/pci/hda/patch_analog.c2
3 files changed, 13 insertions, 5 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 0c0ac0e1d504..b79ee3444654 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2399,6 +2399,7 @@ static int init_slave_unmute(void *data, struct snd_kcontrol *slave)
* @slaves: slave control names (optional)
* @suffix: suffix string to each slave name (optional)
* @init_slave_vol: initialize slaves to unmute/0dB
+ * @ctl_ret: store the vmaster kcontrol in return
*
* Create a virtual master control with the given name. The TLV data
* must be either NULL or a valid data.
@@ -2411,11 +2412,15 @@ static int init_slave_unmute(void *data, struct snd_kcontrol *slave)
*/
int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
unsigned int *tlv, const char * const *slaves,
- const char *suffix, bool init_slave_vol)
+ const char *suffix, bool init_slave_vol,
+ struct snd_kcontrol **ctl_ret)
{
struct snd_kcontrol *kctl;
int err;
+ if (ctl_ret)
+ *ctl_ret = NULL;
+
err = map_slaves(codec, slaves, suffix, check_slave_present, NULL);
if (err != 1) {
snd_printdd("No slave found for %s\n", name);
@@ -2439,6 +2444,8 @@ int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
map_slaves(codec, slaves, suffix,
tlv ? init_slave_0dB : init_slave_unmute, kctl);
+ if (ctl_ret)
+ *ctl_ret = kctl;
return 0;
}
EXPORT_SYMBOL_HDA(__snd_hda_add_vmaster);
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index caa64686267b..c3ee4ede4482 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -140,10 +140,11 @@ void snd_hda_set_vmaster_tlv(struct hda_codec *codec, hda_nid_t nid, int dir,
struct snd_kcontrol *snd_hda_find_mixer_ctl(struct hda_codec *codec,
const char *name);
int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
- unsigned int *tlv, const char * const *slaves,
- const char *suffix, bool init_slave_vol);
+ unsigned int *tlv, const char * const *slaves,
+ const char *suffix, bool init_slave_vol,
+ struct snd_kcontrol **ctl_ret);
#define snd_hda_add_vmaster(codec, name, tlv, slaves, suffix) \
- __snd_hda_add_vmaster(codec, name, tlv, slaves, suffix, true)
+ __snd_hda_add_vmaster(codec, name, tlv, slaves, suffix, true, NULL)
int snd_hda_codec_reset(struct hda_codec *codec);
/* amp value bits */
diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index fa97a0c5ced0..7143393927da 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -229,7 +229,7 @@ static int ad198x_build_controls(struct hda_codec *codec)
(spec->slave_vols ?
spec->slave_vols : ad_slave_pfxs),
"Playback Volume",
- !spec->avoid_init_slave_vol);
+ !spec->avoid_init_slave_vol, NULL);
if (err < 0)
return err;
}