mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

ALSA: hda - Fix ADC input-amp handling for Cx20549 codec 

It seems that Conexant CX20549 chip handle only a single input-amp even
though the audio-input widget has multiple sources.  This has been never
clear, and I implemented in the current way based on the debug information
I got at the early time -- the device reacts individual input-amp values
for different sources.  This is true for another Conexant codec, but it's
not applied to CX20549 actually.

This patch changes the auto-parser code to handle a single input-amp
per audio-in widget for CX20549.  After applying this, you'll see only a
single "Capture" volume control instead of separate "Mic" or "Line"
captures when the device is set up to use a single ADC.

We haven't tested 20551 and 20561 codecs yet.  If these show the similar
behavior like 20549, they need to set spec->single_adc_amp=1, too.

Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2011-10-14 15:26:20 +02:00
parent 254f296840
commit 6b45214277
1 changed files with 27 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
sound/pci/hda/patch_conexant.c
View File

@ -137,6 +137,7 @@ struct conexant_spec {
unsigned int hp_laptop:1;
unsigned int asus:1;
unsigned int pin_eapd_ctrls:1;
unsigned int single_adc_amp:1;
unsigned int adc_switching:1;
@ -4213,6 +4214,8 @@ static int cx_auto_add_capture_volume(struct hda_codec *codec, hda_nid_t nid,
int idx = get_input_connection(codec, adc_nid, nid);
if (idx < 0)
continue;
if (spec->single_adc_amp)
idx = 0;
return cx_auto_add_volume_idx(codec, label, pfx,
cidx, adc_nid, HDA_INPUT, idx);
}
@ -4253,14 +4256,21 @@ static int cx_auto_build_input_controls(struct hda_codec *codec)
struct hda_input_mux *imux = &spec->private_imux;
const char *prev_label;
int input_conn[HDA_MAX_NUM_INPUTS];
int i, err, cidx;
int i, j, err, cidx;
int multi_connection;
if (!imux->num_items)
return 0;
multi_connection = 0;
for (i = 0; i < imux->num_items; i++) {
cidx = get_input_connection(codec, spec->imux_info[i].adc,
spec->imux_info[i].pin);
input_conn[i] = (spec->imux_info[i].adc << 8) | cidx;
if (cidx < 0)
continue;
input_conn[i] = spec->imux_info[i].adc;
if (!spec->single_adc_amp)
input_conn[i] |= cidx << 8;
if (i > 0 && input_conn[i] != input_conn[0])
multi_connection = 1;
}
@ -4289,6 +4299,15 @@ static int cx_auto_build_input_controls(struct hda_codec *codec)
err = cx_auto_add_capture_volume(codec, nid,
"Capture", "", cidx);
} else {
bool dup_found = false;
for (j = 0; j < i; j++) {
if (input_conn[j] == input_conn[i]) {
dup_found = true;
break;
}
}
if (dup_found)
continue;
err = cx_auto_add_capture_volume(codec, nid,
label, " Capture", cidx);
}
@ -4413,6 +4432,12 @@ static int patch_conexant_auto(struct hda_codec *codec)
codec->spec = spec;
codec->pin_amp_workaround = 1;
switch (codec->vendor_id) {
case 0x14f15045:
spec->single_adc_amp = 1;
break;
}
apply_pin_fixup(codec, cxt_fixups, cxt_pincfg_tbl);
err = cx_auto_search_adcs(codec);