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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2015-09-19 11:21:57 +0900 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-09-29 12:48:19 +0200 |
| commit | bc8500da3e62cd6a896407a1b330a2eb21817c22 (patch) | |
| tree | 74259f781b6999135349f5670c0bbd907f28936f /sound/firewire/amdtp-am824.h | |
| parent | 51c29fd21389d9995a8a18a91eeb8dd1220a2119 (diff) | |
| download | linux-bc8500da3e62cd6a896407a1b330a2eb21817c22.tar.bz2 | |
ALSA: firewire-lib: move PCM substream constraint to AM824 layer
In IEC 61883-6, PCM frames are transferred in Multi Bit Linear Audio data
channel. The data channel transfers 16/20/24 bit PCM samples. Thus, PCM
substream has a constrain about it.
This commit moves codes related to the constraint from packet streaming
layer to AM824 data block processing layer.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/amdtp-am824.h')
| -rw-r--r-- | sound/firewire/amdtp-am824.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/firewire/amdtp-am824.h b/sound/firewire/amdtp-am824.h index cfc0d61e0db4..4aaed9048d82 100644 --- a/sound/firewire/amdtp-am824.h +++ b/sound/firewire/amdtp-am824.h @@ -1,6 +1,8 @@ #ifndef SOUND_FIREWIRE_AMDTP_AM824_H_INCLUDED #define SOUND_FIREWIRE_AMDTP_AM824_H_INCLUDED +#include <sound/pcm.h> + #include "amdtp-stream.h" int amdtp_am824_set_parameters(struct amdtp_stream *s, unsigned int rate, @@ -8,6 +10,9 @@ int amdtp_am824_set_parameters(struct amdtp_stream *s, unsigned int rate, unsigned int midi_ports, bool double_pcm_frames); +int amdtp_am824_add_pcm_hw_constraints(struct amdtp_stream *s, + struct snd_pcm_runtime *runtime); + int amdtp_am824_init(struct amdtp_stream *s, struct fw_unit *unit, enum amdtp_stream_direction dir, enum cip_flags flags); #endif |