diff options
Diffstat (limited to 'sound/pci/hda/hda_codec.c')
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 57b5a0a83c8d..0dbeeaf6113a 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -821,6 +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 */ |