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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:03 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 18:50:03 +0000 |
| commit | 01a69402cf9d38ff180345d55c2ee51c7e89fbc7 (patch) | |
| tree | b406c5242a088c4f59c6e4b719b783f43aca6ae9 /sound/core/pcm_lib.c | |
| parent | Adding upstream version 6.7.12. (diff) | |
| download | linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.tar.xz linux-01a69402cf9d38ff180345d55c2ee51c7e89fbc7.zip | |
Adding upstream version 6.8.9.upstream/6.8.9
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/core/pcm_lib.c')
| -rw-r--r-- | sound/core/pcm_lib.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c index a11cd7d629..41103e5c43 100644 --- a/sound/core/pcm_lib.c +++ b/sound/core/pcm_lib.c @@ -1706,6 +1706,40 @@ int snd_pcm_hw_param_last(struct snd_pcm_substream *pcm, } EXPORT_SYMBOL(snd_pcm_hw_param_last); +/** + * snd_pcm_hw_params_bits - Get the number of bits per the sample. + * @p: hardware parameters + * + * Return: The number of bits per sample based on the format, + * subformat and msbits the specified hw params has. + */ +int snd_pcm_hw_params_bits(const struct snd_pcm_hw_params *p) +{ + snd_pcm_subformat_t subformat = params_subformat(p); + snd_pcm_format_t format = params_format(p); + + switch (format) { + case SNDRV_PCM_FORMAT_S32_LE: + case SNDRV_PCM_FORMAT_U32_LE: + case SNDRV_PCM_FORMAT_S32_BE: + case SNDRV_PCM_FORMAT_U32_BE: + switch (subformat) { + case SNDRV_PCM_SUBFORMAT_MSBITS_20: + return 20; + case SNDRV_PCM_SUBFORMAT_MSBITS_24: + return 24; + case SNDRV_PCM_SUBFORMAT_MSBITS_MAX: + case SNDRV_PCM_SUBFORMAT_STD: + default: + break; + } + fallthrough; + default: + return snd_pcm_format_width(format); + } +} +EXPORT_SYMBOL(snd_pcm_hw_params_bits); + static int snd_pcm_lib_ioctl_reset(struct snd_pcm_substream *substream, void *arg) { |