topology2: Add the UAOL DAI type

The USB Audio Offload Link is an ACE2+ alt link. The firmware enumerates its
gateways in the ALH class family, but the ALH DAI class carries SoundWire
specific attributes, so UAOL is described by a DAI class of its own.

Allow "UAOL" as a dai type and as a copier type, and let the dai-copier take
the two UAOL node types which common_definitions.conf already defines.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>

Author: ujfalusi

tools/topology/topology2/include/components/dai-copier.conf

@@ -44,6 +44,7 @@ Class.Widget."dai-copier" {
 				"HDA"
 				"SSP"
 				"DMIC"
+				"UAOL"
 				"SAI"
 			]
 		}
@@ -57,6 +58,7 @@ Class.Widget."dai-copier" {
                                 "SSP"
                                 "DMIC"
                                 "HDA"
+                                "UAOL"
                                 "SAI"
                         ]
                 }
@@ -103,6 +105,8 @@ Class.Widget."dai-copier" {
 				$DMIC_LINK_INPUT_CLASS # DMIC link input (DSP <-)
 				$I2S_LINK_OUTPUT_CLASS # I2S link output (DSP ->)
 				$I2S_LINK_INPUT_CLASS # I2S link input (DSP <-)
+				$ALH_UAOL_STREAM_LINK_OUTPUT_CLASS # UAOL link output (DSP ->)
+				$ALH_UAOL_STREAM_LINK_INPUT_CLASS # UAOL link input (DSP <-)
 				$IPC_OUTPUT_CLASS # IPC output (DSP ->)
 				$IPC_INPUT_CLASS # IPC input (DSP <-)
 				$I2S_MULTILINK_OUTPUT_CLASS # I2S Multi gtw output (DSP ->)

tools/topology/topology2/include/components/dai.conf

@@ -28,6 +28,7 @@ Class.Widget."dai" {
 				"DMIC"
 				"HDA"
 				"ALH"
+				"UAOL"
 				"SAI"
 				"ESAI"
 			]

tools/topology/topology2/include/dais/uaol.conf

@@ -0,0 +1,95 @@
+#
+# UAOL DAI
+#
+# All attributes defined herein are namespaced by alsatplg to
+# "Object.Dai.UAOL.attribute_name"
+#
+# UAOL (USB Audio Offload Link) is an ACE2+ alt link. It belongs to the ALH
+# class family in the firmware gateway enumeration, but it is described by its
+# own DAI class because the ALH class carries SoundWire specific attributes.
+#
+# Usage: this component can be used by declaring as follows:
+#
+# For Playback
+#Object.Dai.UAOL."N" {
+#		direction	"playback"
+#		name		"UAOL0"
+#		id		0
+#		Object.Base.hw_config."0" {}
+# }
+# For Capture
+#Object.Dai.UAOL."N" {
+#		direction	"capture"
+#		name		"UAOL0"
+#		id		0
+#		Object.Base.hw_config."1" {}
+# }
+#
+# Where N is the dai index of the UAOL DAI in the firmware
+
+Class.Dai."UAOL" {
+	#
+	# instance ID of UAOL DAI object
+	#
+	DefineAttribute."instance" {}
+
+	#
+	# UAOL link index in the firmware
+	#
+	DefineAttribute."dai_index" {
+		token_ref	"dai.word"
+	}
+
+	DefineAttribute."direction" {
+		type "string"
+		constraints {
+			!valid_values [
+				"playback"
+				"capture"
+				"duplex"
+			]
+		}
+	}
+
+	# type of DAI
+	DefineAttribute.dai_type {
+		type	"string"
+		token_ref	"dai.string"
+	}
+
+	# Backend DAI Link ID matching with the machine driver
+	DefineAttribute.id {}
+
+	DefineAttribute."default_hw_config_id" {}
+
+	DefineAttribute.name {
+		type	"string"
+	}
+
+	DefineAttribute.rate {}
+
+	DefineAttribute.ch {}
+
+	attributes {
+		!constructor [
+			"name"
+		]
+		!mandatory [
+			"id"
+			"dai_index"
+		]
+		!immutable [
+			"type"
+		]
+		#
+		# UAOL DAI objects instantiated within the same alsaconf node must
+		# have unique instance attribute
+		#
+		unique	"instance"
+	}
+
+	dai_type		"UAOL"
+	default_hw_config_id	0
+	rate	48000
+	ch	2
+}