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authorTakashi Iwai <tiwai@suse.de>2012-07-18 13:53:29 +0200
committerTakashi Iwai <tiwai@suse.de>2012-07-18 13:53:29 +0200
commitf0913cd16e8a6608cf9558ccbe8fdf4d428ca3de (patch)
treed6ea8cc44a9d55d29d38605165a09cf69ff9a536 /sound/core
parent61eab000f3536f080eab43fd5eed3fd817ded76e (diff)
parent59b1f084abd8690ffe68c67758ad08bbcb7d1af0 (diff)
downloadop-kernel-dev-f0913cd16e8a6608cf9558ccbe8fdf4d428ca3de.zip
op-kernel-dev-f0913cd16e8a6608cf9558ccbe8fdf4d428ca3de.tar.gz
Merge branch 'topic/misc' into for-next
Generic updates for sound 3.6
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/pcm_lib.c4
-rw-r--r--sound/core/pcm_misc.c18
2 files changed, 20 insertions, 2 deletions
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index 8f312fa..7ae6719 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -1250,10 +1250,10 @@ static int snd_pcm_hw_rule_list(struct snd_pcm_hw_params *params,
int snd_pcm_hw_constraint_list(struct snd_pcm_runtime *runtime,
unsigned int cond,
snd_pcm_hw_param_t var,
- struct snd_pcm_hw_constraint_list *l)
+ const struct snd_pcm_hw_constraint_list *l)
{
return snd_pcm_hw_rule_add(runtime, cond, var,
- snd_pcm_hw_rule_list, l,
+ snd_pcm_hw_rule_list, (void *)l,
var, -1);
}
diff --git a/sound/core/pcm_misc.c b/sound/core/pcm_misc.c
index 9c9eff9..d4fc1bf 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);
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