Merge master.kernel.org:/pub/scm/linux/kernel/git/perex/alsa

1 files changed, 52 insertions, 0 deletions

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 3815403..0dbeeaf 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -518,6 +518,13 @@ int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
 		return -ENODEV;
 	}
 
+	if (! codec->subsystem_id) {
+		hda_nid_t nid = codec->afg ? codec->afg : codec->mfg;
+		codec->subsystem_id = snd_hda_codec_read(codec, nid, 0,
+							 AC_VERB_GET_SUBSYSTEM_ID,
+							 0);
+	}
+
 	codec->preset = find_codec_preset(codec);
 	if (! *bus->card->mixername)
 		snd_hda_get_codec_name(codec, bus->card->mixername,
@@ -814,6 +821,51 @@ int snd_hda_mixer_amp_switch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t
 }
 
 /*
+ * bound volume controls
+ *
+ * bind multiple volumes (# indices, from 0)
+ */
+
+#define AMP_VAL_IDX_SHIFT	19
+#define AMP_VAL_IDX_MASK	(0x0f<<19)
+
+int snd_hda_mixer_bind_switch_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+	unsigned long pval;
+	int err;
+
+	down(&codec->spdif_mutex); /* reuse spdif_mutex */
+	pval = kcontrol->private_value;
+	kcontrol->private_value = pval & ~AMP_VAL_IDX_MASK; /* index 0 */
+	err = snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
+	kcontrol->private_value = pval;
+	up(&codec->spdif_mutex);
+	return err;
+}
+
+int snd_hda_mixer_bind_switch_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
+{
+	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+	unsigned long pval;
+	int i, indices, err = 0, change = 0;
+
+	down(&codec->spdif_mutex); /* reuse spdif_mutex */
+	pval = kcontrol->private_value;
+	indices = (pval & AMP_VAL_IDX_MASK) >> AMP_VAL_IDX_SHIFT;
+	for (i = 0; i < indices; i++) {
+		kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) | (i << AMP_VAL_IDX_SHIFT);
+		err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
+		if (err < 0)
+			break;
+		change |= err;
+	}
+	kcontrol->private_value = pval;
+	up(&codec->spdif_mutex);
+	return err < 0 ? err : change;
+}
+
+/*
  * SPDIF out controls
  */