ALSA: fireworks: Add MIDI interface

This commit adds a functionality to capture/playback MIDI messages.

When no AMDTP streams are running, this driver starts AMDTP stream for MIDI
stream at current sampling rate.

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

1 files changed, 6 insertions, 0 deletions

diff --git a/sound/firewire/fireworks/fireworks.c b/sound/firewire/fireworks/fireworks.c
index 311e4a6ef0a6..9204c7c56513 100644
--- a/sound/firewire/fireworks/fireworks.c
+++ b/sound/firewire/fireworks/fireworks.c
@@ -226,6 +226,12 @@ efw_probe(struct fw_unit *unit,
 
         snd_efw_proc_init(efw);
 
+        if (efw->midi_out_ports || efw->midi_in_ports) {
+                err = snd_efw_create_midi_devices(efw);
+                if (err < 0)
+                        goto error;
+        }
+
         err = snd_efw_stream_init_duplex(efw);
         if (err < 0)
                 goto error;