diff options
Diffstat (limited to 'sound/firewire/amdtp-am824.c')
| -rw-r--r-- | sound/firewire/amdtp-am824.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sound/firewire/amdtp-am824.c b/sound/firewire/amdtp-am824.c index f5edcbfa3157..7adaba356579 100644 --- a/sound/firewire/amdtp-am824.c +++ b/sound/firewire/amdtp-am824.c @@ -53,6 +53,26 @@ int amdtp_am824_set_parameters(struct amdtp_stream *s, unsigned int rate, EXPORT_SYMBOL_GPL(amdtp_am824_set_parameters); /** + * amdtp_am824_add_pcm_hw_constraints - add hw constraints for PCM substream + * @s: the AMDTP stream for AM824 data block, must be initialized. + * @runtime: the PCM substream runtime + * + */ +int amdtp_am824_add_pcm_hw_constraints(struct amdtp_stream *s, + struct snd_pcm_runtime *runtime) +{ + int err; + + err = amdtp_stream_add_pcm_hw_constraints(s, runtime); + if (err < 0) + return err; + + /* AM824 in IEC 61883-6 can deliver 24bit data. */ + return snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24); +} +EXPORT_SYMBOL_GPL(amdtp_am824_add_pcm_hw_constraints); + +/** * amdtp_am824_init - initialize an AMDTP stream structure to handle AM824 * data block * @s: the AMDTP stream to initialize |