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| author |   Cezary Rojewski <cezary.rojewski@intel.com> | 2023-11-17 13:05:58 +0100 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2023-11-27 17:27:41 +0100 |
| commit | d24f1a090d3f2a5c86a8782afeda71c2d2539966 (patch) | |
| tree | cd1365dfd37f5f73d1cdac09ab35def54e93e888 /include/sound/pcm_params.h | |
| parent | ASoC: pcm: Honor subformat when configuring runtime (diff) | |
| download | wireguard-linux-d24f1a090d3f2a5c86a8782afeda71c2d2539966.tar.xz wireguard-linux-d24f1a090d3f2a5c86a8782afeda71c2d2539966.zip | |
ALSA: hda: Upgrade stream-format infrastructure
Introduce a set of functions that ultimately facilite SDxFMT-related
calculations in atomic manner:
First, introduce snd_pcm_subformat_width() and snd_pcm_hw_params_bits()
helpers that separate the base functionality from the HDAudio-specific
one.
snd_hdac_format_normalize() - format converter. S20_LE, S24_LE and their
unsigned and BE friends are invalid from HDAudio perspective but still
can be specified as function argument due to compatibility reasons.
snd_hdac_stream_format_bits() - obtain just the bits-per-sample value.
Does not ignore subformat and msbits parameters.
snd_hdac_stream_format() and snd_hdac_spdif_stream_format() - obtain the
SDxFMT value given the audio format parameters. The former is stripped
away of spdif-related information. Useful for users that do not care
about them.
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20231117120610.1755254-5-cezary.rojewski@intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound/pcm_params.h')
| -rw-r--r-- | include/sound/pcm_params.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/sound/pcm_params.h b/include/sound/pcm_params.h index ba184f49f7e1..fbf35df6e5cf 100644 --- a/include/sound/pcm_params.h +++ b/include/sound/pcm_params.h @@ -362,6 +362,8 @@ static inline int params_physical_width(const struct snd_pcm_hw_params *p) return snd_pcm_format_physical_width(params_format(p)); } +int snd_pcm_hw_params_bits(const struct snd_pcm_hw_params *p); + static inline void params_set_format(struct snd_pcm_hw_params *p, snd_pcm_format_t fmt) { |