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authorDavid Henningsson <david.henningsson@canonical.com>2012-09-20 15:41:21 +0200
committerTakashi Iwai <tiwai@suse.de>2012-09-20 07:16:37 -0700
commit739572a545b8ab6faf9e266c3ed83ea202073699 (patch)
tree331eec9b37f9c995b196af0fa9fd8702c130c048 /sound
parentc10514394ef9e8de93a4ad8c8904d71dcd82c122 (diff)
ALSA: hda - use both input paths on Conexant auto parser
On the Thinkpad W520 - and probably several other machines with Conexant 506x chips - the Dock Mic and Mic are connected to the same two selector nodes. This patch will make Dock Mic take one selector node and Mic take the other, when possible. Without the patch, both paths would take the first selector, leading to the normal Mic's volume being controlled by "Dock Mic Boost". (On other machines, this could instead fixup similar problems between Mic and Line In, for example.) BugLink: https://bugs.launchpad.net/bugs/1037642 Signed-off-by: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/patch_conexant.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index b871b01332d..c03d3b8e42b 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -3540,8 +3540,9 @@ static int __select_input_connection(struct hda_codec *codec, hda_nid_t mux,
hda_nid_t pin, hda_nid_t *srcp,
bool do_select, int depth)
{
+ struct conexant_spec *spec = codec->spec;
hda_nid_t conn[HDA_MAX_NUM_INPUTS];
- int i, nums;
+ int startidx, i, nums;
switch (get_wcaps_type(get_wcaps(codec, mux))) {
case AC_WID_AUD_IN:
@@ -3565,14 +3566,25 @@ static int __select_input_connection(struct hda_codec *codec, hda_nid_t mux,
depth++;
if (depth == 2)
return -1;
+
+ /* Try to rotate around connections to avoid one boost controlling
+ another input path as well */
+ startidx = 0;
+ for (i = 0; i < spec->private_imux.num_items; i++)
+ if (spec->imux_info[i].pin == pin) {
+ startidx = i;
+ break;
+ }
+
for (i = 0; i < nums; i++) {
- int ret = __select_input_connection(codec, conn[i], pin, srcp,
+ int j = (i + startidx) % nums;
+ int ret = __select_input_connection(codec, conn[j], pin, srcp,
do_select, depth);
if (ret >= 0) {
if (do_select)
snd_hda_codec_write(codec, mux, 0,
- AC_VERB_SET_CONNECT_SEL, i);
- return i;
+ AC_VERB_SET_CONNECT_SEL, j);
+ return j;
}
}
return -1;