Some new AMD cards have HDA codecs presenting 6 connected HDMI/DP pin
nodes (plus 1 unconnected pin node) according to the ALSA card database.
Example:
http://www.alsa-project.org/db/?f=de3ced7af41de0ed54d218650e5e2f16c511787b
Bump the maximum number of presented HDMI outputs per card via the
"hdmi" PCM from 4 to 8 (so that the last possible device is DEV=7).
Note that HDMI PCM devices DEV=4..7 use shared PCM device numbers, so
HDA cards that have over 4 audio PCM devices or multiple S/PDIF or modem
devices will have their remaining PCM devices misrepresented as HDMI
devices.
Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When both an SPDIF and an HDMI output are present on HD-audio, both
try to access IEC958 controls with index=0 although one of them must
be wrong. For avoiding this conflict, the recent kernel code (3.9 and
3.8 stable) moves the IEC958 controls of an SPDIF with index=16 once
when the conflict happens.
In this patch, the corresponding support is added in alsa-lib side.
The new "skip_rest" boolean flag is added to the hooked element
definition which indicates that the rest of element array will be
ignored once when this element is present and evaluated. With this
new flag, the HD-audio config takes index=16 primarily, then take
index=0 as fallback.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The subdevice 0 is used for multi-channel outputs.
This fixes the detection of multi-channel devices of VIA codecs
by PulseAudio.
Reported-by: Raymond Yau <superquad.vortex2@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
As discussed with Takashi, removing the lock allows apps to mute
the output using the mixer interface.
Other AES controls remain locked.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Commit 92608badc519a8c1f65d93743396517aaa582b53 in linux kernel added
the possibility of 3 additional HDMI devices on indexes 7-9.
Present all those additional devices using the "hdmi" alias as well.
Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Since some digital mics have the phase-inversion problem in one channel,
adding both channels for mono stream results in the noise.
Use route_policy copy to avoid that situation.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The hd-audio driver may have no analog stream but only a digital one
which has usually non-zero device number. To avoid the bogus namehint,
set hint.device 0 for pcm.default (it wasn't handled properly due to
asym).
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This patch allows for gain in the softvol plugin, in addition to attenuation.
The plugin now has a "max_dB" parameter (up to 50 dB) as well as the
original "min_dB" parameter (down to -51 dB). max_dB defaults to 0 dB, so
unless max_dB is specified in a device conf, the behavior of the plugin will
be the same as before (attenuation only).
HDA-Intel.conf is also modified to use softvol for its default capture.
So now, capture is filtered through softvol (range -30 to +30 dB) before
being passed on to dsnoop as before.
The softvol plugin allows a range of -51 to +50 dB, so max_dB could be
increased to 50. But eventually samples are going to get clipped. At 40
dB I was beginning to get clipping when recording a sample sound at a
"reasonably soft" volume using a digital mic on the stac9205 HDA codec.
The motivation for this work is that some HDA codecs have no hardware gain
control for some paths. For instance, the stac9205 has support for digital
mics, but there is no gain control widget for this signal before it is placed
on the Azalia link (only a mute). Therefore gain can only be accomplished
via software.
Signed-off-by: Steve Longerbeam <stevel@embeddedalley.com>
- add long card name to device description
- create empty PCM plugin to allow right hint description parsing
- reorder devices in alsa.conf
- make namehint more configurable (using default.namehint.showall switch)
- add two levels basic and exteded for hints to default configuration files
- do not show direct device aliases
- removed all known memory leaks
- add snd_device_name_hint() and snd_device_name_free_hint() functions
- add snd_ctl_iface_conf_name() functions
- do not accept parameters for the plugin definition without @args section
- add defaults.pcm.dmix.card/device and dsnoop.card/device definitions
- add hints for HDA-Intel.conf, pcm/dmix.conf, pcm/dsnoop.conf and alsa.conf
- add test/namehint test utility
- doxygen related cleanups
