ALSA: bebob: Add commands and connections/streams management

This commit adds management functionality for connections and streams.
BeBoB uses CMP to manage connections and uses AMDTP for streams.

This commit also adds some BridgeCo's AV/C extension commands. There are some
BridgeCo's AV/C extension commands but this commit just uses below commands
to get device's capability and status:

 1.Extended Plug Info commands
  - Plug Channel Position Specific Data
  - Plug Type Specific Data
  - Cluster(Section) Info Specific Data
  - Plug Input Specific Data
 2.Extended Stream Format Information commands
  - Extended Stream Format Information Command - List Request

For Extended Plug Info commands for Cluster Info Specific Data, I pick up
'section' instead of 'cluster' from document to prevent from misunderstanding
because 'cluster' is also used in IEC 61883-6.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 14 insertions, 1 deletions

diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c
index b5644ab473c6..180284db84c9 100644
--- a/sound/firewire/bebob/bebob.c
+++ b/sound/firewire/bebob/bebob.c
@@ -158,9 +158,20 @@ bebob_probe(struct fw_unit *unit,
 	if (err < 0)
 		goto error;
 
-	err = snd_card_register(card);
+	err = snd_bebob_stream_discover(bebob);
 	if (err < 0)
 		goto error;
+
+	err = snd_bebob_stream_init_duplex(bebob);
+	if (err < 0)
+		goto error;
+
+	err = snd_card_register(card);
+	if (err < 0) {
+		snd_bebob_stream_destroy_duplex(bebob);
+		goto error;
+	}
+
 	dev_set_drvdata(&unit->device, bebob);
 end:
 	mutex_unlock(&devices_mutex);
@@ -176,11 +187,13 @@ bebob_update(struct fw_unit *unit)
 {
 	struct snd_bebob *bebob = dev_get_drvdata(&unit->device);
 	fcp_bus_reset(bebob->unit);
+	snd_bebob_stream_update_duplex(bebob);
 }
 
 static void bebob_remove(struct fw_unit *unit)
 {
 	struct snd_bebob *bebob = dev_get_drvdata(&unit->device);
+	snd_bebob_stream_destroy_duplex(bebob);
 	snd_card_disconnect(bebob->card);
 	snd_card_free_when_closed(bebob->card);
 }