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ASoC: Add BCLK calculation utility for TDM mode too

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Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2009-11-19 11:36:10 +00:00
parent 2449ae85e3
commit c0fa59df72
2 changed files with 7 additions and 0 deletions
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1
include/sound/soc.h
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@ -230,6 +230,7 @@ int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid);
/* Utility functions to get clock rates from various things */ /* Utility functions to get clock rates from various things */
int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots); int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots);
int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params); int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params);
int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots);
int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms); int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms);
/* set runtime hw params */ /* set runtime hw params */

6
sound/soc/soc-utils.c
View file

@ -54,6 +54,12 @@ int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params)
} }
EXPORT_SYMBOL_GPL(snd_soc_params_to_frame_size); EXPORT_SYMBOL_GPL(snd_soc_params_to_frame_size);
int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots)
{
return fs * snd_soc_calc_frame_size(sample_size, channels, tdm_slots);
}
EXPORT_SYMBOL_GPL(snd_soc_calc_bclk);
int snd_soc_params_to_bclk(struct snd_pcm_hw_params *params) int snd_soc_params_to_bclk(struct snd_pcm_hw_params *params)
{ {
int ret; int ret;