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authorJaroslav Kysela <perex@perex.cz>2022-11-08 12:59:14 +0100
committerTakashi Iwai <tiwai@suse.de>2022-11-16 15:02:17 +0100
commitaba51cd0949aee50a2b93f1b32ed3668cd613649 (patch)
tree678a89cebc9fab6370e441abf30fbb49f960afdd /sound/aoa
parentALSA: pcm: avoid nused-but-set-variable warning (diff)
downloadlinux-aba51cd0949aee50a2b93f1b32ed3668cd613649.tar.xz
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selftests: alsa - add PCM test
This initial code does a simple sample transfer tests. By default, all PCM devices are detected and tested with short and long buffering parameters for 4 seconds. If the sample transfer timing is not in a +-100ms boundary, the test fails. Only the interleaved buffering scheme is supported in this version. The configuration may be modified with the configuration files. A specific hardware configuration is detected and activated using the sysfs regex matching. This allows to use the DMI string (/sys/class/dmi/id/* tree) or any other system parameters exposed in sysfs for the matching for the CI automation. The configuration file may also specify the PCM device list to detect the missing PCM devices. v1..v2: - added missing alsa-local.h header file Cc: Mark Brown <broonie@kernel.org> Cc: Pierre-Louis Bossart <pierre-louis.bossart@intel.com> Cc: Liam Girdwood <liam.r.girdwood@intel.com> Cc: Jesse Barnes <jsbarnes@google.com> Cc: Jimmy Cheng-Yi Chiang <cychiang@google.com> Cc: Curtis Malainey <cujomalainey@google.com> Cc: Brian Norris <briannorris@chromium.org> Signed-off-by: Jaroslav Kysela <perex@perex.cz> Reviewed-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20221108115914.3751090-1-perex@perex.cz Signed-off-by: Takashi Iwai <tiwai@suse.de>
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