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Recent tries on the minnow board have show that the setting of channels
on a PCM must be done -after- the setting of the rate.
When not doing that, there can be issues (really, complicated to find)
around the boundaries values (open intervals) on the period bytes.
Additionally, the number of channels can now be forced in the json file.
Change-Id: I2c20853daadf9ccab06be6e04d1a185440f57780
Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>
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This adds a boolean 'optional' parameter for both playback and
capture devices. When the device is not detected, the stream(s)
that use is are not created, without leading to the exit of the
softmixer.
Change-Id: I3effbd61bfe1d1d4a7cde573354b9db791f759cc
Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>
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Adds an optional array of quirks in the parameters of playback
and captures.
For now, the only known quirk is a needed workarround for writing
sound output on the minnow board.
Change-Id: I6c65d110a1f9333ccb77cd8f4eeb9c088d0d2eca
Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>
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This fixes #SPEC-2125.
The fix consists in specifying the number of channels
in the softvol pcm configuration.
When it is not set, the libasound detects a configuration
mismatch (the default number of channels being 2), and
attempts to remove the sotfvol control, which for unknown reason,
(broken support on kernel side ?) randomly fails.
Change-Id: I816b623715e413452e6793ee519e97fac6fdde43
Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>
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Fixes most memory leaks in softmixer.
The concept of 'transaction' for dynamic streams has
been generalized to the objects created at startup.
The cleanup is done via a handle set through a atexit()
call.
Also added a missing strdup in alsa-api-loop, that fixes
a double free.
Warning, the bluez-alsa PCM are not closed in this
version. This is intentional due to a BUG in the
bluealsa ioplug PCM, that crashes upon close
(pthread_cancel is used to terminate the io_thread
and things get very bad. I have a pending fix for
that, relying on a cancellation pipe, but deeper
testing must be done).
As an effect, only one phone call can be made,
else 4a needs to be restarted
Change-Id: Idb84cafe15f17c0ef02fcc70296d541dc55a2dcf
Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>
Signed-off-by: Stephane Desneux <stephane.desneux@iot.bzh>
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This adds support for bluetooth telephony.
A big rework in the softmixer internals has been
mandatory, in order to support dynamic streams creation
and deletions.
Bluetooth telephony relies on the recent evolutions
of bluez-alsa, the most important one being the
support of HFP over Ofono. The softmixer opens
PCM ioplugs provided by bluez-alsa.
Bluetooth SCO needs 2 streams, one for listening
and the other for talking. These streams are created
upon requests sent by the hal-manager.
The hal manager subscribes for bluez-alsa events
and request the list of availalble transports.
For each "attach" transaction verb, the softmixer
maintains a list of the all created objects
(sources, sinks, zones, ramps, streams, and more)
Additionnally, it creates a new verb when the attach
succeeds, that verb is typically something like
"sco_XX:XX:XX:XX:XX:XX", and the only supported action
at the present time is {"action":"remove"}, that performs
all the cleanup of the registered objects.
Change-Id: I1b119e6c079e60daf771e63c083a1ef33a39f379
Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>
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Replace some 'printf' by application framework debug functions.
Improve 'ALSA_PCM_UID' macro.
Correct minor errors in debug prints.
Change-Id: I49899fd904d42b5b3bec46017eb319ed7d321dc5
Signed-off-by: Jonathan Aillet <jonathan.aillet@iot.bzh>
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This adds sound playback for incoming sound from
connected bluetooth devices.
In this version, the softmixer relies on a modified
bluez-alsa version (https://github.com/iotbzh/bluez-alsa),
that provides an ioplug PCM bluezalsa connection proxy.
The softmixer api has a new verb to dynamically set the
device to listen to:
afb-client-demo ws://localhost:1234/api?token=\uuid=123 smixer bluezalsa_dev '{"interface":"hci0", "device":"F6:32:15:2A:80:70", "profile":"a2dp"}'
In this way it is possible to switch from a bluezalsa audio source to
another without any further configuration.
For now, only interface hci0 is supported.
This commit also migrates the softmixer binding to API v3
Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>
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when the stream is muted (due to the configuration, or
due to a HAL request), the read/write loop is stopped.
The benefit is that muting will work with capture devices
that do not implement the mute in their driver.
The inconvenient of stopping the read loop is that it
has made appear an unexpected side-effect: the poll on
capture does not trig for further incoming frames.
The workaround is to completely close, then reopen
and configure the capture PCM.
Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>
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Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>
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Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>
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Remove yocto compilation errors concerning :
- An unitialized variable in 'alsa-api-pcm.c'
- A wrong use of asprintf in 'alsa-api-streams.c'
Change-Id: I170993d060a7a1d1a1c20979da0645c5ef2b1b91
Signed-off-by: Jonathan Aillet <jonathan.aillet@iot.bzh>
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Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>
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Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>
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Fixed some warnings about uninitialized variables
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Thierry Bultel
Stephane Desneux
Jonathan Aillet
fulup
Fulup Ar Foll