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authorLars-Peter Clausen <lars@metafoo.de>2014-01-11 10:24:43 +0100
committerMark Brown <broonie@linaro.org>2014-01-14 20:42:34 +0000
commite3a9269f874067fcefc5eb8037466161fb0fe3f4 (patch)
tree5d5d71d96c19cd786fd14e2ccfe50d22ab962c3a /sound/soc/soc-pcm.c
parentbf103eb4af73596edbab5faab67e29ea1e87c769 (diff)
ALSA: Add helper function for intersecting two rate masks
A bit of special care is necessary when creating the intersection of two rate masks. This comes from the special meaning of the SNDRV_PCM_RATE_CONTINUOUS and SNDRV_PCM_RATE_KNOT bits, which needs special handling when intersecting two rate masks. SNDRV_PCM_RATE_CONTINUOUS means the hardware supports all rates in a specific interval. SNDRV_PCM_RATE_KNOT means the hardware supports a set of discrete rates specified by a list constraint. For all other cases the supported rates are specified directly in the rate mask. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/soc-pcm.c')
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