USB-Audio: Add Use Case for Arturia Minifuse 2

Arturia Minifuse 2
(https://www.arturia.com/products/audio/minifuse/minifuse2)
is an USB audio interface with 2 mono inputs and 2 channel outputs.
It uses 1 subinterface with 4 capture and 4 playback channels:
Capture channels:
- Mic/Line/Inst 1 (Mono)
- Mic/Line/Inst 2 (Mono)
- Loopback (Stereo, L+R)

Playback:
- Main (Stereo, L+R)
- Loopback (L+R)

The Loopback capture and playback are intended to ease recording sound
from the computer, e.g if you're doing a podcast and want to record
something that plays from the computer. Of course us linux user don't
need that, since we have many tools able to do that.

However, without a dedicated use case, alsa treats the channels as
surround 4.0, which make the card difficult to use.

At this stage, no controls are available.

TODO/FIXMEs:
- add a channel map override on the pcm device ?

Fixes: https://github.com/alsa-project/alsa-ucm-conf/pull/145
Signed-off-by: Clément Hermann <nodens@debian.org>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/ucm2/USB-Audio/Arturia/Minifuse-2-HiFi.conf b/ucm2/USB-Audio/Arturia/Minifuse-2-HiFi.conf
new file mode 100644 (file)
index 0000000..282fb5e
--- /dev/null
+++ b/ucm2/USB-Audio/Arturia/Minifuse-2-HiFi.conf
@@ -0,0 +1,179 @@
+LibraryConfig.pcm.Config {
+
+       pcm.minifuse2_stereo_p {
+               @args [ CARD CHN0 CHN1 ]
+               @args {
+                       CARD.type string
+                       CHN0.type integer
+                       CHN1.type integer
+               }
+               type dshare
+               ipc_key 583542
+               slave {
+                       pcm {
+                               type hw
+                               card $CARD
+                               device 0
+                       }
+                       channels 4
+               }
+               bindings.0 $CHN0
+               bindings.1 $CHN1
+       }
+
+       pcm.minifuse2_stereo_c {
+               @args [ CARD CHN0 CHN1 ]
+               @args {
+                       CARD.type string
+                       CHN0.type integer
+                       CHN1.type integer
+               }
+               type dsnoop
+               ipc_key 583542
+               slave {
+                       pcm {
+                               type hw
+                               card $CARD
+                               device 0
+                       }
+                       channels 4
+               }
+               bindings.0 $CHN0
+               bindings.1 $CHN1
+       }
+
+       pcm.minifuse2_mono_c {
+               @args [ CARD CHN0 ]
+               @args {
+                       CARD.type string
+                       CHN0.type integer
+               }
+               type dsnoop
+               ipc_key 583542
+               slave {
+                       pcm {
+                               type hw
+                               card $CARD
+                               device 0
+                       }
+                       channels 4
+               }
+               bindings.0 $CHN0
+       }
+
+       pcm.minifuse2_main_p {
+               @args [ CARD ]
+               @args.CARD.type string
+               type empty
+               slave.pcm {
+                       @func concat
+                       strings [ "minifuse2_stereo_p:" $CARD ",0,1" ]
+               }
+       }
+
+       pcm.minifuse2_loopback_p {
+               @args [ CARD ]
+               @args.CARD.type string
+               type empty
+               slave.pcm {
+                       @func concat
+                       strings [ "minifuse2_stereo_p:" $CARD ",2,3" ]
+               }
+       }
+
+       pcm.minifuse2_loopback_c {
+               @args [ CARD ]
+               @args.CARD.type string
+               type empty
+               slave.pcm {
+                       @func concat
+                       strings [ "minifuse2_stereo_c:" $CARD ",2,3" ]
+               }
+       }
+
+       pcm.minifuse2_mic1_c {
+               @args [ CARD ]
+               @args.CARD.type string
+               type empty
+               slave.pcm {
+                       @func concat
+                       strings [ "minifuse2_mono_c:" $CARD ",0" ]
+               }
+       }
+
+       pcm.minifuse2_mic2_c {
+               @args [ CARD ]
+               @args.CARD.type string
+               type empty
+               slave.pcm {
+                       @func concat
+                       strings [ "minifuse2_mono_c:" $CARD ",1" ]
+               }
+       }
+
+       pcm.minifuse2_combo_c {
+               @args [ CARD ]
+               @args.CARD.type string
+               type empty
+               slave.pcm {
+                       @func concat
+                       strings [ "minifuse2_stereo_c:" $CARD ",0,1" ]
+               }
+       }
+}
+
+SectionDevice."Main" {
+       Comment "Main Playback L/R"
+       Value {
+               PlaybackPriority 300
+               PlaybackChannels 2
+               PlaybackPCM "minifuse2_main_p:${CardId}"
+       }
+}
+
+SectionDevice."Loopback_p" {
+       Comment "Loopback Playback L/R"
+       Value {
+               PlaybackPriority 200
+               PlaybackChannels 2
+               PlaybackPCM "minifuse2_loopback_p:${CardId}"
+       }
+}
+
+SectionDevice."Loopback_c" {
+       Comment "Loopback Capture L/R"
+       Value {
+               CapturePriority 200
+               CaptureChannels 2
+               CapturePCM "minifuse2_loopback_c:${CardId}"
+       }
+}
+
+SectionDevice."Combo_c" {
+       Comment "Stereo Capture 1+2 L/R"
+       Value {
+               CapturePriority 100
+               CaptureChannels 2
+               CapturePCM "minifuse2_combo_c:${CardId}"
+       }
+}
+
+SectionDevice."Mic1" {
+       Comment "Mic/Line/Inst 1 (L)"
+
+       Value {
+               CapturePriority 300
+               CaptureChannels 1
+               CapturePCM "minifuse2_mic1_c:${CardId}"
+       }
+}
+
+SectionDevice."Mic2" {
+       Comment "Mic/Line/Inst 2 (R)"
+
+       Value {
+               CapturePriority 200
+               CaptureChannels 1
+               CapturePCM "minifuse2_mic2_c:${CardId}"
+       }
+}

diff --git a/ucm2/USB-Audio/Arturia/Minifuse-2.conf b/ucm2/USB-Audio/Arturia/Minifuse-2.conf
new file mode 100644 (file)
index 0000000..492d521
--- /dev/null
+++ b/ucm2/USB-Audio/Arturia/Minifuse-2.conf
@@ -0,0 +1,5 @@
+Comment "Arturia Minifuse 2"
+SectionUseCase."HiFi" {
+       Comment "Default Alsa Profile"
+       File "/USB-Audio/Arturia/Minifuse-2-HiFi.conf"
+}

diff --git a/ucm2/USB-Audio/USB-Audio.conf b/ucm2/USB-Audio/USB-Audio.conf
index c4959813cb721167d9cdf7b09b25794d175daba4..14c6a4f4288403b00e4e5fe45ff9bf64c3f332a7 100644 (file)
--- a/ucm2/USB-Audio/USB-Audio.conf
+++ b/ucm2/USB-Audio/USB-Audio.conf
@@ -129,6 +129,15 @@ If.mixremap {
        }
 }
 
+If.minifuse2 {
+       Condition {
+               Type String
+               Haystack "${CardComponents}"
+               Needle "USB1c75:af90"
+       }
+       True.Define.ProfileName "Arturia/Minifuse-2"
+}
+
 If.inc {
        Condition {
                Type String