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>
diff --git a/sound/firewire/fireworks/fireworks.h b/sound/firewire/fireworks/fireworks.h
index eef7ad8..d181969 100644
--- a/sound/firewire/fireworks/fireworks.h
+++ b/sound/firewire/fireworks/fireworks.h
@@ -22,6 +22,7 @@
 #include <sound/initval.h>
 #include <sound/pcm.h>
 #include <sound/info.h>
+#include <sound/rawmidi.h>
 
 #include "../packets-buffer.h"
 #include "../iso-resources.h"
@@ -198,6 +199,8 @@
 
 void snd_efw_proc_init(struct snd_efw *efw);
 
+int snd_efw_create_midi_devices(struct snd_efw *efw);
+
 #define SND_EFW_DEV_ENTRY(vendor, model) \
 { \
 	.match_flags	= IEEE1394_MATCH_VENDOR_ID | \