From 9e3fd8719f624a43575b56a4777b1552399a8be8 Mon Sep 17 00:00:00 2001 From: Jaroslav Kysela Date: Tue, 8 Dec 2009 17:45:25 +0100 Subject: ALSA: hda - introduce HDA_SUBDEV_AMP_FLAG (ControlAmp in proc) The purpose of this changeset is to show information about amplifier setting in the codec proc file. Something like: Control: name="Front Playback Volume", index=0, device=0 ControlAmp: chs=3, dir=Out, idx=0, ofs=0 Control: name="Front Playback Switch", index=0, device=0 ControlAmp: chs=3, dir=In, idx=2, ofs=0 Signed-off-by: Jaroslav Kysela --- sound/pci/hda/hda_codec.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) (limited to 'sound/pci/hda/hda_codec.c') diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 20100b1548e1..c9af15ed7f10 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -1723,19 +1723,22 @@ EXPORT_SYMBOL_HDA(snd_hda_find_mixer_ctl); * * snd_hda_ctl_add() checks the control subdev id field whether * #HDA_SUBDEV_NID_FLAG bit is set. If set (and @nid is zero), the lower - * bits value is taken as the NID to assign. + * bits value is taken as the NID to assign. The #HDA_NID_ITEM_AMP bit + * specifies if kctl->private_value is a HDA amplifier value. */ int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid, struct snd_kcontrol *kctl) { int err; + unsigned short flags = 0; struct hda_nid_item *item; - if (kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) { - if (nid == 0) - nid = kctl->id.subdevice & 0xffff; + if (kctl->id.subdevice & HDA_SUBDEV_AMP_FLAG) + flags |= HDA_NID_ITEM_AMP; + if ((kctl->id.subdevice & HDA_SUBDEV_NID_FLAG) != 0 && nid == 0) + nid = kctl->id.subdevice & 0xffff; + if (kctl->id.subdevice & 0xf0000000) kctl->id.subdevice = 0; - } err = snd_ctl_add(codec->bus->card, kctl); if (err < 0) return err; @@ -1744,6 +1747,7 @@ int snd_hda_ctl_add(struct hda_codec *codec, hda_nid_t nid, return -ENOMEM; item->kctl = kctl; item->nid = nid; + item->flags = flags; return 0; } EXPORT_SYMBOL_HDA(snd_hda_ctl_add); -- cgit v1.2.3