[ALSA] pcm: add snd_pcm_rate_to_rate_bit() helper

Add a snd_pcm_rate_to_rate_bit() function to factor out common code used
by several drivers.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 4 insertions, 17 deletions

diff --git a/sound/pci/rme32.c b/sound/pci/rme32.c
index ee0189b756d1..1475912588e9 100644
--- a/sound/pci/rme32.c
+++ b/sound/pci/rme32.c
@@ -258,19 +258,6 @@ static inline unsigned int snd_rme32_pcm_byteptr(struct rme32 * rme32)
                 & RME32_RCR_AUDIO_ADDR_MASK);
 }
 
-static int snd_rme32_ratecode(int rate)
-{
-        switch (rate) {
-        case 32000: return SNDRV_PCM_RATE_32000;
-        case 44100: return SNDRV_PCM_RATE_44100;
-        case 48000: return SNDRV_PCM_RATE_48000;
-        case 64000: return SNDRV_PCM_RATE_64000;
-        case 88200: return SNDRV_PCM_RATE_88200;
-        case 96000: return SNDRV_PCM_RATE_96000;
-        }
-        return 0;
-}
-
 /* silence callback for halfduplex mode */
 static int snd_rme32_playback_silence(struct snd_pcm_substream *substream, int channel, /* not used (interleaved data) */
                                       snd_pcm_uframes_t pos,
@@ -887,7 +874,7 @@ static int snd_rme32_playback_spdif_open(struct snd_pcm_substream *substream)
         if ((rme32->rcreg & RME32_RCR_KMODE) &&
             (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
                 /* AutoSync */
-                runtime->hw.rates = snd_rme32_ratecode(rate);
+                runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
                 runtime->hw.rate_min = rate;
                 runtime->hw.rate_max = rate;
         }       
@@ -929,7 +916,7 @@ static int snd_rme32_capture_spdif_open(struct snd_pcm_substream *substream)
                 if (isadat) {
                         return -EIO;
                 }
-                runtime->hw.rates = snd_rme32_ratecode(rate);
+                runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
                 runtime->hw.rate_min = rate;
                 runtime->hw.rate_max = rate;
         }
@@ -965,7 +952,7 @@ snd_rme32_playback_adat_open(struct snd_pcm_substream *substream)
         if ((rme32->rcreg & RME32_RCR_KMODE) &&
             (rate = snd_rme32_capture_getrate(rme32, &dummy)) > 0) {
                 /* AutoSync */
-                runtime->hw.rates = snd_rme32_ratecode(rate);
+                runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
                 runtime->hw.rate_min = rate;
                 runtime->hw.rate_max = rate;
         }        
@@ -989,7 +976,7 @@ snd_rme32_capture_adat_open(struct snd_pcm_substream *substream)
                 if (!isadat) {
                         return -EIO;
                 }
-                runtime->hw.rates = snd_rme32_ratecode(rate);
+                runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
                 runtime->hw.rate_min = rate;
                 runtime->hw.rate_max = rate;
         }