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| author | NeilBrown <neilb@suse.de> | 2012-08-01 20:40:02 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-08-01 20:40:02 +1000 |
| commit | bb181e2e48f8c85db08c9cb015cbba9618dbf05c (patch) | |
| tree | 191bc24dd97bcb174535cc217af082f16da3b43d /sound/core/pcm_misc.c | |
| parent | d57368afe63b3b7b45ce6c2b8c5276417935be2f (diff) | |
| parent | c039c332f23e794deb6d6f37b9f07ff3b27fb2cf (diff) | |
| download | lwn-bb181e2e48f8c85db08c9cb015cbba9618dbf05c.tar.gz lwn-bb181e2e48f8c85db08c9cb015cbba9618dbf05c.zip | |
Merge commit 'c039c332f23e794deb6d6f37b9f07ff3b27fb2cf' into md
Pull in pre-requisites for adding raid10 support to dm-raid.
Diffstat (limited to 'sound/core/pcm_misc.c')
| -rw-r--r-- | sound/core/pcm_misc.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/sound/core/pcm_misc.c b/sound/core/pcm_misc.c index 9c9eff9afbac..d4fc1bfbe457 100644 --- a/sound/core/pcm_misc.c +++ b/sound/core/pcm_misc.c @@ -488,3 +488,21 @@ unsigned int snd_pcm_rate_to_rate_bit(unsigned int rate) return SNDRV_PCM_RATE_KNOT; } EXPORT_SYMBOL(snd_pcm_rate_to_rate_bit); + +/** + * snd_pcm_rate_bit_to_rate - converts SNDRV_PCM_RATE_xxx bit to sample rate + * @rate_bit: the rate bit to convert + * + * Returns the sample rate that corresponds to the given SNDRV_PCM_RATE_xxx flag + * or 0 for an unknown rate bit + */ +unsigned int snd_pcm_rate_bit_to_rate(unsigned int rate_bit) +{ + unsigned int i; + + for (i = 0; i < snd_pcm_known_rates.count; i++) + if ((1u << i) == rate_bit) + return snd_pcm_known_rates.list[i]; + return 0; +} +EXPORT_SYMBOL(snd_pcm_rate_bit_to_rate); |