Merge remote-tracking branch 'asoc/topic/core-pcm' into asoc-next (89595f5e) · Commits · e / devices / android_kernel_fairphone_FP3

include/sound/pcm.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -1093,6 +1093,8 @@ unsigned int snd_pcm_rate_to_rate_bit(unsigned int rate);
		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

+30 −0

Original line number	Diff line number	Diff line
		@@ -565,3 +565,33 @@ unsigned int snd_pcm_rate_mask_intersect(unsigned int rates_a,
		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);