alsa-mixer: add profile for Traktor Kontrol S4

This new audio interface from Native Instruments has 2 stereo channels
for both input and output direction. This patch adds mappings for them.

src/Makefile.am

@@ -1099,7 +1099,8 @@ dist_alsaprofilesets_DATA = \
 		modules/alsa/mixer/profile-sets/default.conf \
 		modules/alsa/mixer/profile-sets/maudio-fasttrack-pro.conf \
 		modules/alsa/mixer/profile-sets/native-instruments-audio4dj.conf \
-		modules/alsa/mixer/profile-sets/native-instruments-audio8dj.conf
+		modules/alsa/mixer/profile-sets/native-instruments-audio8dj.conf \
+		modules/alsa/mixer/profile-sets/native-instruments-traktorkontrol-s4.conf
 
 if HAVE_UDEV
 dist_udevrules_DATA = \

src/modules/alsa/mixer/profile-sets/90-pulseaudio.rules

@@ -22,6 +22,7 @@ KERNEL!="card*", GOTO="pulseaudio_end"
 
 SUBSYSTEMS=="usb", ATTRS{idVendor}=="17cc", ATTRS{idProduct}=="1978", ENV{PULSE_PROFILE_SET}="native-instruments-audio8dj.conf"
 SUBSYSTEMS=="usb", ATTRS{idVendor}=="17cc", ATTRS{idProduct}=="0839", ENV{PULSE_PROFILE_SET}="native-instruments-audio4dj.conf"
+SUBSYSTEMS=="usb", ATTRS{idVendor}=="17cc", ATTRS{idProduct}=="baff", ENV{PULSE_PROFILE_SET}="native-instruments-traktorkontrol-s4.conf"
 SUBSYSTEMS=="usb", ATTRS{idVendor}=="0763", ATTRS{idProduct}=="2012", ENV{PULSE_PROFILE_SET}="maudio-fasttrack-pro.conf"
 
 LABEL="pulseaudio_end"

src/modules/alsa/mixer/profile-sets/native-instruments-traktorkontrol-s4.conf

@@ -0,0 +1,81 @@
+# This file is part of PulseAudio.
+#
+# PulseAudio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as
+# published by the Free Software Foundation; either version 2.1 of the
+# License, or (at your option) any later version.
+#
+# PulseAudio is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with PulseAudio; if not, write to the Free Software Foundation,
+# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+
+; Native Instruments Traktor Kontrol S4
+;
+; This controller has two stereo pairs of input (named "Channel C" and
+; "Channel D") and two stereo pairs of output, one "Main Out" and
+; "Headphone Out".
+;
+; See default.conf for an explanation on the directives used here.
+
+[General]
+auto-profiles = no
+
+[Mapping analog-stereo-output-main]
+description = Analog Stereo Main Out
+device-strings = hw:%f,0,0
+channel-map = left,right
+
+[Mapping analog-stereo-output-headphone]
+description = Analog Stereo Headphones Out
+device-strings = hw:%f,0,1
+channel-map = left,right
+direction = output
+
+[Mapping analog-stereo-c-input]
+description = Analog Stereo Channel C
+device-strings = hw:%f,0,1
+channel-map = left,right
+direction = input
+
+[Mapping analog-stereo-d-input]
+description = Analog Stereo Channel D
+device-strings = hw:%f,0,1
+channel-map = left,right
+direction = input
+
+[Profile output:analog-stereo-all+input:analog-stereo-all]
+description = Analog Stereo Duplex
+output-mappings = analog-stereo-output-main analog-stereo-output-headphone
+input-mappings = analog-stereo-c-input analog-stereo-d-input
+priority = 100
+skip-probe = yes
+
+[Profile output:analog-stereo-main]
+description = Analog Stereo Main Output
+output-mappings = analog-stereo-output-main
+priority = 4
+skip-probe = yes
+
+[Profile output:analog-stereo-headphone]
+description = Analog Stereo Output Headphones Out
+output-mappings = analog-stereo-output-headphone
+priority = 3
+skip-probe = yes
+
+[Profile input:analog-stereo-c]
+description = Analog Stereo Input Channel C
+input-mappings = analog-stereo-c-input
+priority = 2
+skip-probe = yes
+
+[Profile input:analog-stereo-d]
+description = Analog Stereo Input Channel D
+input-mappings = analog-stereo-d-input
+priority = 1
+skip-probe = yes
+