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 | 5 ++++- src/pcm/pcm.c | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 61 insertions(+), 2 deletions(-)
diff --git a/include/pcm.h b/include/pcm.h index f963b92..f8c557b 100644 --- a/include/pcm.h +++ b/include/pcm.h @@ -684,7 +684,10 @@ 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 */ +int snd_pcm_hw_params_supports_audio_link_ts(const snd_pcm_hw_params_t *params); +int snd_pcm_hw_params_supports_audio_link_estimated_ts(const snd_pcm_hw_params_t *params); +int snd_pcm_hw_params_supports_audio_link_synchronized_ts(const snd_pcm_hw_params_t *params); 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 af7d8c9..28a2a4e 100644 --- a/src/pcm/pcm.c +++ b/src/pcm/pcm.c @@ -3190,12 +3190,68 @@ 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_link_ts(params); +} + +/** + * \brief Check if hardware supports audio link timestamps + * \param params Configuration space + * \retval 0 Hardware doesn't support audio link timestamps + * \retval 1 Hardware supports audio link 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_link_ts(const snd_pcm_hw_params_t *params) +{ + 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_LINK_ATIME); +} + +/** + * \brief Check if hardware supports audio link estimated timestamps + * \param params Configuration space + * \retval 0 Hardware doesn't support audio link estimated timestamps + * \retval 1 Hardware supports audio link estimated 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_link_estimated_ts(const snd_pcm_hw_params_t *params) +{ + 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_LINK_ESTIMATED_ATIME); +} + +/** + * \brief Check if hardware supports audio link synchronized timestamps + * \param params Configuration space + * \retval 0 Hardware doesn't support audio link synchronized timestamps + * \retval 1 Hardware supports audio link synchronized 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_link_synchronized_ts(const snd_pcm_hw_params_t *params) +{ 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); + return !!(params->info & SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME); }
/**