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authorJorge Sanjuan <jorge.sanjuan@codethink.co.uk>2018-06-14 15:05:57 +0100
committerTakashi Iwai <tiwai@suse.de>2018-06-14 18:03:52 +0200
commit3528cd8f6a902c0c8597cc97f91371f0bc16ab7b (patch)
tree089ae81d89b6841b1e1a607cb0d0fdec5d7e8bd8 /sound
parent167e1fb1218d0526e65f2dd00b62ed08866dcfff (diff)
downloadlinux-3528cd8f6a902c0c8597cc97f91371f0bc16ab7b.tar.bz2
ALSA: usb-audio: Add insertion control for UAC3 BADD
The HEADSET ADAPTER profile for BADD devices is meant to support Insertion Control for the Input and Output Terminals of the headset. This patch defines the BADD inferred input and output terminals and builds the connector controls. Signed-off-by: Jorge Sanjuan <jorge.sanjuan@codethink.co.uk> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/usb/mixer.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 34fef71e0330..03b8a2ac93c8 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -2918,6 +2918,23 @@ static int snd_usb_mixer_controls_badd(struct usb_mixer_interface *mixer,
UAC3_BADD_FU_ID7, map->map);
}
+ /* Insertion Control */
+ if (f->subclass == UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER) {
+ struct usb_audio_term iterm, oterm;
+
+ /* Input Term - Insertion control */
+ memset(&iterm, 0, sizeof(iterm));
+ iterm.id = UAC3_BADD_IT_ID4;
+ iterm.type = UAC_BIDIR_TERMINAL_HEADSET;
+ build_connector_control(mixer, &iterm, true);
+
+ /* Output Term - Insertion control */
+ memset(&oterm, 0, sizeof(oterm));
+ oterm.id = UAC3_BADD_OT_ID3;
+ oterm.type = UAC_BIDIR_TERMINAL_HEADSET;
+ build_connector_control(mixer, &oterm, false);
+ }
+
return 0;
}