From bc8500da3e62cd6a896407a1b330a2eb21817c22 Mon Sep 17 00:00:00 2001 From: Takashi Sakamoto Date: Sat, 19 Sep 2015 11:21:57 +0900 Subject: 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 Signed-off-by: Takashi Iwai --- sound/firewire/amdtp-am824.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'sound/firewire/amdtp-am824.h') 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 + #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 -- cgit v1.2.3