[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>
diff --git a/sound/ppc/pmac.c b/sound/ppc/pmac.c
index 04b95ae..4f9b19c 100644
--- a/sound/ppc/pmac.c
+++ b/sound/ppc/pmac.c
@@ -490,35 +490,14 @@
struct snd_pcm_substream *subs)
{
struct snd_pcm_runtime *runtime = subs->runtime;
- int i, j, fflags;
- static int typical_freqs[] = {
- 44100,
- 22050,
- 11025,
- 0,
- };
- static int typical_freq_flags[] = {
- SNDRV_PCM_RATE_44100,
- SNDRV_PCM_RATE_22050,
- SNDRV_PCM_RATE_11025,
- 0,
- };
+ int i;
/* look up frequency table and fill bit mask */
runtime->hw.rates = 0;
- fflags = chip->freqs_ok;
- for (i = 0; typical_freqs[i]; i++) {
- for (j = 0; j < chip->num_freqs; j++) {
- if ((chip->freqs_ok & (1 << j)) &&
- chip->freq_table[j] == typical_freqs[i]) {
- runtime->hw.rates |= typical_freq_flags[i];
- fflags &= ~(1 << j);
- break;
- }
- }
- }
- if (fflags) /* rest */
- runtime->hw.rates |= SNDRV_PCM_RATE_KNOT;
+ for (i = 0; i < chip->num_freqs; i++)
+ if (chip->freqs_ok & (1 << i))
+ runtime->hw.rates |=
+ snd_pcm_rate_to_rate_bit(chip->freq_table[i]);
/* check for minimum and maximum rates */
for (i = 0; i < chip->num_freqs; i++) {