ALSA: firewire: add Stanton SCS.1d/1m driver

Add a MIDI driver for the Stanton FireWire DJ controllers.
Tested-by: Sean M. Pappalardo - D.J. Pegasus <spappalardo@mixxx.org>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>

sound/firewire/Kconfig

@@ -33,4 +33,17 @@ config SND_ISIGHT
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-isight.
 
+config SND_SCS1X
+	tristate "Stanton Control System 1 MIDI"
+	select SND_PCM
+	select SND_RAWMIDI
+	select SND_FIREWIRE_LIB
+	help
+	  Say Y here to include support for the MIDI ports of the Stanton
+	  SCS.1d/SCS.1m DJ controllers.  (SCS.1m audio is still handled
+	  by FFADO.)
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd-scs1x.
+
 endif # SND_FIREWIRE

sound/firewire/Makefile

@@ -2,7 +2,9 @@ snd-firewire-lib-objs := lib.o iso-resources.o packets-buffer.o \
 			 fcp.o cmp.o amdtp.o
 snd-firewire-speakers-objs := speakers.o
 snd-isight-objs := isight.o
+snd-scs1x-objs := scs1x.o
 
 obj-$(CONFIG_SND_FIREWIRE_LIB) += snd-firewire-lib.o
 obj-$(CONFIG_SND_FIREWIRE_SPEAKERS) += snd-firewire-speakers.o
 obj-$(CONFIG_SND_ISIGHT) += snd-isight.o
+obj-$(CONFIG_SND_SCS1X) += snd-scs1x.o