* [PATCH 4/30] ALSA: HDA VIA: Limit VT1702 AA-Path max volume
@ 2009-10-10 11:07 Logan Li
0 siblings, 0 replies; 2+ messages in thread
From: Logan Li @ 2009-10-10 11:07 UTC (permalink / raw)
To: alsa-devel; +Cc: tiwai, HaraldWelte, LydiaWang
From: Lydia Wang <lydiawang@viatech.com.cn>
Subject: ALSA: HDA VIA: Limit VT1702 AA-Path max volume
according to customer request, VT1702 AA-Path max volume (12 dB) is too
high, so limit to 0 dB.
Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Logan Li <loganli@viatech.com.cn>
---
sound/pci/hda/patch_via.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -3166,6 +3166,12 @@
err = vt1702_auto_create_hp_ctls(spec, spec->autocfg.hp_pins[0]);
if (err < 0)
return err;
+ /* limit AA path volume to 0 dB */
+ snd_hda_override_amp_caps(codec, 0x1A, HDA_INPUT,
+ (0x17 << AC_AMPCAP_OFFSET_SHIFT) |
+ (0x17 << AC_AMPCAP_NUM_STEPS_SHIFT) |
+ (0x5 << AC_AMPCAP_STEP_SIZE_SHIFT) |
+ (1 << AC_AMPCAP_MUTE_SHIFT));
err = vt1702_auto_create_analog_input_ctls(spec, &spec->autocfg);
if (err < 0)
return err;
^ permalink raw reply [flat|nested] 2+ messages in thread
* [PATCH 4/30] ALSA: HDA VIA: Limit VT1702 AA-Path max volume
@ 2009-10-09 10:40 LoganLi
0 siblings, 0 replies; 2+ messages in thread
From: LoganLi @ 2009-10-09 10:40 UTC (permalink / raw)
To: alsa-devel; +Cc: tiwai, HaraldWelte, LydiaWang
From: Lydia Wang <lydiawang@viatech.com.cn>
Subject: ALSA: HDA VIA: Limit VT1702 AA-Path max volume
according to customer request, VT1702 AA-Path max volume (12 dB) is too
high, so limit to 0 dB.
Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Logan Li <loganli@viatech.com.cn>
---
pci/hda/patch_via.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/pci/hda/patch_via.c
+++ b/pci/hda/patch_via.c
@@ -3165,6 +3165,12 @@
err = vt1702_auto_create_hp_ctls(spec,
spec->autocfg.hp_pins[0]);
if (err < 0)
return err;
+ /* limit AA path volume to 0 dB */
+ snd_hda_override_amp_caps(codec, 0x1A, HDA_INPUT,
+ (0x17 << AC_AMPCAP_OFFSET_SHIFT) |
+ (0x17 << AC_AMPCAP_NUM_STEPS_SHIFT) |
+ (0x5 << AC_AMPCAP_STEP_SIZE_SHIFT) |
+ (1 << AC_AMPCAP_MUTE_SHIFT));
err = vt1702_auto_create_analog_input_ctls(spec,
&spec->autocfg);
if (err < 0)
return err;
^ permalink raw reply [flat|nested] 2+ messages in thread
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