diff options
| author | Takashi Iwai <tiwai@suse.de> | 2011-07-26 12:02:56 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-07-26 17:21:24 +0200 |
| commit | b51beb756aaf0770e4fa8bb2cb142888051aa356 (patch) | |
| tree | 89d6905997ef2f9094bc9c08d5fc88631a007e44 /include/sound/pcm_params.h | |
| parent | 4d7fbdbcb1d563b1822c74da3c9e4aa4523d8d6d (diff) | |
ALSA: Make pcm.h self-contained
Move the macros depending on snd_mask_min() and co out of pcm.h into
pcm_params.h. Otherwise using some params_*() macros will give comiple
errors without inclusion of pcm_params.h.
Also use hw_param_interval_c() and hw_param_mask_c() for const pointer.
Reported-by: Tim Blechmann <tim@klingt.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound/pcm_params.h')
| -rw-r--r-- | include/sound/pcm_params.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/include/sound/pcm_params.h b/include/sound/pcm_params.h index 85cf1cf4f31a..f494f1e3c900 100644 --- a/include/sound/pcm_params.h +++ b/include/sound/pcm_params.h @@ -337,5 +337,19 @@ static inline unsigned int sub(unsigned int a, unsigned int b) return 0; } -#endif /* __SOUND_PCM_PARAMS_H */ +#define params_access(p) ((__force snd_pcm_access_t)\ + snd_mask_min(hw_param_mask_c((p), SNDRV_PCM_HW_PARAM_ACCESS))) +#define params_format(p) ((__force snd_pcm_format_t)\ + snd_mask_min(hw_param_mask_c((p), SNDRV_PCM_HW_PARAM_FORMAT))) +#define params_subformat(p) \ + snd_mask_min(hw_param_mask_c((p), SNDRV_PCM_HW_PARAM_SUBFORMAT)) +static inline unsigned int +params_period_bytes(const struct snd_pcm_hw_params *p) +{ + return (params_period_size(p) * + snd_pcm_format_physical_width(params_format(p)) * + params_channels(p)) / 8; +} + +#endif /* __SOUND_PCM_PARAMS_H */ |