unsigned int snd_pcm_rate_bit_to_rate(unsigned int rate_bit);
unsigned int snd_pcm_rate_mask_intersect(unsigned int rates_a,
unsigned int rates_b);
-unsigned int snd_pcm_rate_range_to_bits(unsigned int rate_min,
- unsigned int rate_max);
/**
* snd_pcm_set_runtime_buffer - Set the PCM runtime buffer
return rates_a & rates_b;
}
EXPORT_SYMBOL_GPL(snd_pcm_rate_mask_intersect);
-
-/**
- * snd_pcm_rate_range_to_bits - converts rate range to SNDRV_PCM_RATE_xxx bit
- * @rate_min: the minimum sample rate
- * @rate_max: the maximum sample rate
- *
- * This function has an implicit assumption: the rates in the given range have
- * only the pre-defined rates like 44100 or 16000.
- *
- * Return: The SNDRV_PCM_RATE_xxx flag that corresponds to the given rate range,
- * or SNDRV_PCM_RATE_KNOT for an unknown range.
- */
-unsigned int snd_pcm_rate_range_to_bits(unsigned int rate_min,
- unsigned int rate_max)
-{
- unsigned int rates = 0;
- int i;
-
- for (i = 0; i < snd_pcm_known_rates.count; i++) {
- if (snd_pcm_known_rates.list[i] >= rate_min
- && snd_pcm_known_rates.list[i] <= rate_max)
- rates |= 1 << i;
- }
-
- if (!rates)
- rates = SNDRV_PCM_RATE_KNOT;
-
- return rates;
-}
-EXPORT_SYMBOL_GPL(snd_pcm_rate_range_to_bits);