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Commit 3ec3d7a3 authored by Takashi Sakamoto's avatar Takashi Sakamoto Committed by Takashi Iwai
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ALSA: firewire-lib: add AMDTP domain structure to handle several isoc contexts 



This commit adds 'struct amdtp_domain' structure. This structure
has list of instance of AMDTP stream to handle a couple of
isochronous contexts.

Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent b6fcab14

sound/firewire/amdtp-stream.c

+22 −0
Original line number Diff line number Diff line
@@ -1136,3 +1136,25 @@ void amdtp_stream_pcm_abort(struct amdtp_stream *s) 
		snd_pcm_stop_xrun(pcm);

}

EXPORT_SYMBOL(amdtp_stream_pcm_abort);



/**

 * amdtp_domain_init - initialize an AMDTP domain structure

 * @d: the AMDTP domain to initialize.

 */

int amdtp_domain_init(struct amdtp_domain *d)

{

	INIT_LIST_HEAD(&d->streams);



	return 0;

}

EXPORT_SYMBOL_GPL(amdtp_domain_init);



/**

 * amdtp_domain_destroy - destroy an AMDTP domain structure

 * @d: the AMDTP domain to destroy.

 */

void amdtp_domain_destroy(struct amdtp_domain *d)

{

	WARN_ON(!list_empty(&d->streams));

}

EXPORT_SYMBOL_GPL(amdtp_domain_destroy);

sound/firewire/amdtp-stream.h

+7 −0
Original line number Diff line number Diff line
@@ -267,4 +267,11 @@ static inline bool amdtp_stream_wait_callback(struct amdtp_stream *s, 
				  msecs_to_jiffies(timeout)) > 0;

}



struct amdtp_domain {

	struct list_head streams;

};



int amdtp_domain_init(struct amdtp_domain *d);

void amdtp_domain_destroy(struct amdtp_domain *d);



#endif