extend support to link, link_estimated and link_synchronized timestamp. wall-clock is deprecated
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- include/pcm.h | 3 ++- src/pcm/pcm.c | 35 ++++++++++++++++++++++++++++++++++- 2 files changed, 36 insertions(+), 2 deletions(-)
diff --git a/include/pcm.h b/include/pcm.h index 0655e7f..2aa1eff 100644 --- a/include/pcm.h +++ b/include/pcm.h @@ -668,7 +668,8 @@ int snd_pcm_hw_params_is_half_duplex(const snd_pcm_hw_params_t *params); int snd_pcm_hw_params_is_joint_duplex(const snd_pcm_hw_params_t *params); int snd_pcm_hw_params_can_sync_start(const snd_pcm_hw_params_t *params); int snd_pcm_hw_params_can_disable_period_wakeup(const snd_pcm_hw_params_t *params); -int snd_pcm_hw_params_supports_audio_wallclock_ts(const snd_pcm_hw_params_t *params); +int snd_pcm_hw_params_supports_audio_wallclock_ts(const snd_pcm_hw_params_t *params); /* deprecated, use audio_ts_type */ +int snd_pcm_hw_params_supports_audio_ts_type(const snd_pcm_hw_params_t *params, int type); int snd_pcm_hw_params_get_rate_numden(const snd_pcm_hw_params_t *params, unsigned int *rate_num, unsigned int *rate_den); diff --git a/src/pcm/pcm.c b/src/pcm/pcm.c index bc18954..846d502 100644 --- a/src/pcm/pcm.c +++ b/src/pcm/pcm.c @@ -3190,12 +3190,45 @@ int snd_pcm_hw_params_can_disable_period_wakeup(const snd_pcm_hw_params_t *param */ int snd_pcm_hw_params_supports_audio_wallclock_ts(const snd_pcm_hw_params_t *params) { + /* deprecated */ + return snd_pcm_hw_params_supports_audio_ts_type(params, + SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT); +} + +/** + * \brief Check if hardware supports type of audio timestamps + * \param params Configuration space + * \param type Audio timestamp type + * \retval 0 Hardware doesn't support type of audio timestamps + * \retval 1 Hardware supports type of audio timestamps + * + * This function should only be called when the configuration space + * contains a single configuration. Call #snd_pcm_hw_params to choose + * a single configuration from the configuration space. + */ +int snd_pcm_hw_params_supports_audio_ts_type(const snd_pcm_hw_params_t *params, int type) +{ assert(params); if (CHECK_SANITY(params->info == ~0U)) { SNDMSG("invalid PCM info field"); return 0; /* FIXME: should be a negative error? */ } - return !!(params->info & SNDRV_PCM_INFO_HAS_WALL_CLOCK); + switch (type) { + case SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT: + return !!(params->info & SNDRV_PCM_INFO_HAS_WALL_CLOCK); /* deprecated */ + case SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT: + return 1; /* always supported, based on hw_ptr */ + case SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK: + return !!(params->info & SNDRV_PCM_INFO_HAS_LINK_ATIME); + case SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE: + return !!(params->info & SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME); + case SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED: + return !!(params->info & SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME); + case SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED: + return !!(params->info & SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME); + default: + return 0; + } }
/**