1 files changed, 151 insertions, 0 deletions
diff --git a/meta-pipewire/recipes-multimedia/wireplumber/wireplumber-config-agl/host.lua.d/30-alsa-monitor.lua b/meta-pipewire/recipes-multimedia/wireplumber/wireplumber-config-agl/host.lua.d/30-alsa-monitor.lua
new file mode 100644
index 000000000..75a169675
--- /dev/null
+++ b/meta-pipewire/recipes-multimedia/wireplumber/wireplumber-config-agl/host.lua.d/30-alsa-monitor.lua
@@ -0,0 +1,151 @@
+-- ALSA monitor config file --
+
+alsa_monitor = {}
+
+alsa_monitor.properties = {
+  ["alsa.jack-device"] = false,
+  ["alsa.reserve"] = false,
+}
+
+alsa_monitor.rules = {
+  -- disable ACP (PulseAudio-like profiles)
+  {
+    matches = {
+      {
+        { "device.name", "matches", "alsa_card.*" },
+      },
+    },
+    apply_properties = {
+      ["api.alsa.use-acp"] = false,
+    },
+  },
+
+  --
+  -- Bump priority of well-known output devices
+  -- Higher priority means it gets selected as the default if it's present
+  --
+
+  -- USB card
+  {
+    matches = {
+      {
+        { "node.name", "matches", "alsa_output.*" },
+        { "api.alsa.card.driver", "=", "USB-Audio" },
+      },
+    },
+    apply_properties = {
+      ["priority.driver"]        = 1300,
+      ["priority.session"]       = 1300,
+    }
+  },
+
+  -- fiberdyne amp
+  {
+    matches = {
+      {
+        { "node.name", "matches", "alsa_output.*" },
+        { "api.alsa.card.id", "=", "ep016ch" },
+      },
+    },
+    apply_properties = {
+      ["priority.driver"]        = 1200,
+      ["priority.session"]       = 1200,
+    }
+  },
+
+  -- well-known internal devices
+  {
+    matches = {
+      {
+        -- ak4613
+        { "node.name", "matches", "alsa_output.*" },
+        { "api.alsa.card.id", "=", "ak4613" },
+        { "api.alsa.pcm.device", "=", "0" },
+      },
+      {
+        -- imx8mq
+        { "node.name", "matches", "alsa_output.*" },
+        { "api.alsa.card.id", "=", "wm8524audio" },
+      },
+      {
+        -- rcarsound
+        { "node.name", "matches", "alsa_output.*" },
+        { "api.alsa.card.id", "=", "rcarsound" },
+        { "api.alsa.pcm.device", "=", "0" },
+      },
+      {
+        -- rpi3
+        { "node.name", "matches", "alsa_output.*" },
+        { "api.alsa.pcm.name", "=", "bcm2835 ALSA" },
+      },
+    },
+    apply_properties = {
+      ["priority.driver"]        = 1100,
+      ["priority.session"]       = 1100,
+    }
+  },
+
+  --
+  -- Same for input devices
+  --
+
+  -- USB card
+  {
+    matches = {
+      {
+        { "node.name", "matches", "alsa_input.*" },
+        { "api.alsa.card.driver", "=", "USB-Audio" },
+      },
+    },
+    apply_properties = {
+      ["priority.driver"]        = 2300,
+      ["priority.session"]       = 2300,
+    }
+  },
+
+  -- microchip mic
+  {
+    matches = {
+      {
+        { "node.name", "matches", "alsa_input.*" },
+        { "api.alsa.card.id", "=", "ep811ch" },
+      },
+    },
+    apply_properties = {
+      ["priority.driver"]        = 2200,
+      ["priority.session"]       = 2200,
+    }
+  },
+
+  -- well-known internal devices
+  {
+    matches = {
+      {
+        -- ak4613
+        { "node.name", "matches", "alsa_input.*" },
+        { "api.alsa.card.id", "=", "ak4613" },
+      },
+      {
+        -- imx8mq
+        { "node.name", "matches", "alsa_input.*" },
+        { "api.alsa.card.id", "=", "wm8524audio" },
+      },
+      {
+        -- rcarsound
+        { "node.name", "matches", "alsa_input.*" },
+        { "api.alsa.card.id", "=", "rcarsound" },
+      },
+    },
+    apply_properties = {
+      ["priority.driver"]        = 2100,
+      ["priority.session"]       = 2100,
+    }
+  },
+}
+
+function alsa_monitor.enable()
+  load_monitor("alsa", {
+    properties = alsa_monitor.properties,
+    rules = alsa_monitor.rules,
+  })
+end