[ALSA] hda-codec - Minor rewrites
Modules: HDA Codec driver,HDA generic driver
- Make bound controls global to all patches
- Clean up analog patches (for the upcoming extension to AD1988)
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 57b5a0a..0dbeeaf 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -821,6 +821,51 @@
}
/*
+ * 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
*/