topology2: cavs-sdw: Add conditional tone gen pipeline

Add a tone generator pipeline to the speaker playback path and enable it
conditionally.

Signed-off-by: Ranjani Sridharan <[email protected]>

Author: ranj063

tools/topology/topology2/cavs-sdw.conf

@@ -12,6 +12,7 @@
 <tokens.conf>
 <virtual.conf>
 <host-copier-gain-mixin-playback.conf>
+<virtual-siggen-mixin-playback.conf>
 <mixout-gain-alh-dai-copier-playback.conf>
 <mixout-gain-micsel-eqiir-eqfir-alh-dai-copier-playback.conf>
 <mixout-gain-eqiir-eqfir-drc-alh-dai-copier-playback.conf>
@@ -105,6 +106,7 @@ Define {
 	SDW_AMP_XOVER_SELECTOR_PARAMS default
 	SDW_AMP_XOVER_EQIIR_PARAMS default
 	SDW_AMP_XOVER_EQFIR_PARAMS default
+	SPK_TONE_PLAYBACK false
 }
 
 # override defaults with platform-specific config

tools/topology/topology2/platform/intel/sdw-amp-generic.conf

@@ -50,7 +50,21 @@ IncludeByKey.PASSTHROUGH {
 				}
 			}
 		]
+		IncludeByKey.SPK_TONE_PLAYBACK {
+                "true" {
+			virtual-siggen-mixin-playback [
+				{
+					index 25
 
+					Object.Widget.virtual.1 {
+						name 'virtual.siggen'
+						stream_name "Speaker Tone Playback"
+						type "input"
+					}
+				}
+			]
+		}
+		}
 		IncludeByKey.SDW_SPK_ENHANCED_PLAYBACK {
                         "true" {
                                 mixout-gain-eqiir-eqfir-drc-alh-dai-copier-playback [
@@ -581,6 +595,31 @@ Object.PCM.pcm [
 		}
 	}
 ]
+IncludeByKey.PASSTHROUGH {
+"false" {
+	IncludeByKey.SPK_TONE_PLAYBACK {
+	"true" {
+		Object.PCM.pcm [
+			{
+				name	"TONE_GEN"
+				id 21
+				direction	"playback"
+				Object.Base.fe_dai.1 {
+					name	"TONE_GEN"
+				}
+
+				Object.PCM.pcm_caps.1 {
+					direction	"playback"
+					name "Speaker Tone Playback"
+					formats 'S32_LE'
+					rates '48000'
+				}
+			}
+		]
+	}
+	}
+}
+}
 
 IncludeByKey.PASSTHROUGH {
 "false" {
@@ -602,6 +641,20 @@ IncludeByKey.PASSTHROUGH {
                         ]
                 }
         }
+	IncludeByKey.SPK_TONE_PLAYBACK {
+	"true" {
+		Object.Base.route [
+			{
+				source	"virtual.siggen"
+				sink	"siggen.25.1"
+			}
+			{
+				source 'mixin.25.1'
+				sink 'mixout.21.1'
+			}
+		]
+	}
+	}
 	Object.Base.route [
 		{
 			source 'mixin.20.1'