summaryrefslogtreecommitdiffstats
path: root/sound/core/pcm_misc.c
diff options
context:
space:
mode:
authorTomi Valkeinen <tomi.valkeinen@ti.com>2012-09-03 09:26:33 +0300
committerTomi Valkeinen <tomi.valkeinen@ti.com>2012-09-03 09:26:33 +0300
commitc50e86ce7c2961a41f2f7aa6e4fd6c99229ba205 (patch)
tree4ea36009719bd8fc523239fe1bdccb90f0dce3ae /sound/core/pcm_misc.c
parent14d33d384693eb6083396199de516fdef320f7af (diff)
parent4cbe5a555fa58a79b6ecbb6c531b8bab0650778d (diff)
Merge tag 'v3.6-rc4'
Merge 3.6-rc4 to get latest OMAP and device tree fixes.
Diffstat (limited to 'sound/core/pcm_misc.c')
-rw-r--r--sound/core/pcm_misc.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/sound/core/pcm_misc.c b/sound/core/pcm_misc.c
index 9c9eff9afba..d4fc1bfbe45 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);