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Most people don't have "remember what the last two parameters of
snd_pcm_set_params are" in their lifegoals list. Use variables so that it's
clearer what those are.
Signed-off-by: Simon Ser <simon.ser@intel.com>
Reviewed-by: Martin Peres <martin.peres@linux.intel.com>
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- Print matched audio devices
- Print min/max values when alsa_test_configuration fails
- Print debug log line when skipping a frequency
Signed-off-by: Simon Ser <simon.ser@intel.com>
Reviewed-by: Martin Peres <martin.peres@linux.intel.com>
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Before this patch, the audio test first sends an audio signal for 2s, and then
checks whether the captured signal matches.
This patch makes it so we send and check the signal in parallel. Thus we can
stop the test as soon as we receive the correct signal. This saves ~2s per
audio test.
Signed-off-by: Simon Ser <simon.ser@intel.com>
Reviewed-by: Martin Peres <martin.peres@linux.intel.com>
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This new test ensures DisplayPort audio works by using the Chamelium.
It enables the DisplayPort output and sends an audio signal containing a set of
frequencies we choose to all HDMI/DisplayPort audio devices. It starts
recording audio on the Chamelium device and uses the stream server to retrieve
captured audio pages. It then checks that the capture audio signal contains the
frequencies we sent, and only those, by computing a FFT.
A new library has been added to libigt to communicate with the stream server.
It implements a simple custom TCP protocol.
In case the test fails, a WAV file with the captured data is saved on disk.
Right now the test has a few limitations:
- Only the first channel is checked
- IGT only generates audio with a single sampling rate (48 KHz)
- Audio data is not captured in real-time
These limitations will be lifted in future patches.
PulseAudio must not run during the tests since ALSA is used directly. To ensure
this, edit /etc/pulse/client.conf and add `autospawn=no`. Then run
`pulseaudio --kill`.
This commit deletes the existing audio tests. They weren't run and required an
exotic configuration (HDMI audio splitter, dummy HDMI sink and a line-in port
on the DUT).
This patch also changes lib/igt_audio to use uint16_t instead of short. The
rationale is:
- The standard says a short is at least 16 bit wide, but a short can be
larger (in practice it won't happen, but better use types correctly)
- It makes it clearer that the audio format is S16_LE, since "16" is
in the type name.
This patch depends on the following Chameleon bugs:
- https://crbug.com/948060
- https://crbug.com/950857
Signed-off-by: Simon Ser <simon.ser@intel.com>
Reviewed-by: Martin Peres <martin.peres@linux.intel.com>
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The execution can only reach the end (goto complete) or the new
unconditional assignment a few lines below before the value is read
again. Either it's really a dead assignment, or there's a bug with the
execution flow. Leaning on the former.
Signed-off-by: Petri Latvala <petri.latvala@intel.com>
Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
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Just a bit of OCD, I like it when connections within library modules
are a bit more obvious. igt.h is ok for tests, but let's use individual
include lines for libraries consistently.
Also order standard includes before igt ones.
v2: Rebase.
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Acked-by: Petri Latvala <petri.latvala@intel.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Acked-by: Radoslaw Szwichtenberg <radoslaw.szwichtenberg@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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This introduces an ALSA library, with dedicated helpers for handling
playback and capture. It handles ALSA device identification and
configuration as well as a run loop with callback mechanisms for feeding
output data and handling input data.
This library paves the way for testing audio going through display
connectors, such as HDMI.
Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
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