This commit adds a kernel API to insert AMDTP stream to list in AMDTP domain.
Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp --- sound/firewire/amdtp-stream.c | 26 ++++++++++++++++++++++++++ sound/firewire/amdtp-stream.h | 5 +++++ 2 files changed, 31 insertions(+)
diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c index 31fc90f76443..fa7989ee4769 100644 --- a/sound/firewire/amdtp-stream.c +++ b/sound/firewire/amdtp-stream.c @@ -1159,6 +1159,32 @@ void amdtp_domain_destroy(struct amdtp_domain *d) } EXPORT_SYMBOL_GPL(amdtp_domain_destroy);
+/** + * amdtp_domain_add_stream - register isoc context into the domain. + * @d: the AMDTP domain. + * @s: the AMDTP stream. + * @channel: the isochronous channel on the bus. + * @speed: firewire speed code. + */ +int amdtp_domain_add_stream(struct amdtp_domain *d, struct amdtp_stream *s, + int channel, int speed) +{ + struct amdtp_stream *tmp; + + list_for_each_entry(tmp, &d->streams, list) { + if (s == tmp) + return -EBUSY; + } + + list_add(&s->list, &d->streams); + + s->channel = channel; + s->speed = speed; + + return 0; +} +EXPORT_SYMBOL_GPL(amdtp_domain_add_stream); + /** * amdtp_domain_stop - stop sending packets for isoc context in the same domain. * @d: the AMDTP domain to which the isoc contexts belong. diff --git a/sound/firewire/amdtp-stream.h b/sound/firewire/amdtp-stream.h index ab2a69180240..4b102fd7529d 100644 --- a/sound/firewire/amdtp-stream.h +++ b/sound/firewire/amdtp-stream.h @@ -172,6 +172,8 @@ struct amdtp_stream { amdtp_stream_process_ctx_payloads_t process_ctx_payloads;
// For domain. + int channel; + int speed; struct list_head list; };
@@ -277,6 +279,9 @@ struct amdtp_domain { int amdtp_domain_init(struct amdtp_domain *d); void amdtp_domain_destroy(struct amdtp_domain *d);
+int amdtp_domain_add_stream(struct amdtp_domain *d, struct amdtp_stream *s, + int channel, int speed); + void amdtp_domain_stop(struct amdtp_domain *d);
#endif