topology2: add src support

tools/topology/topology2/cavs/CMakeLists.txt

@@ -25,6 +25,10 @@ PREPROCESS_PLUGINS=nhlt,NHLT_BIN=nhlt.bin"
 
 # CAVS SDW topology with passthrough pipelines
 "cavs-sdw\;cavs-sdw"
+
+# CAVS SDW with SRC gain and mixer support
+"cavs-sdw-src-gain-mixin\;cavs-sdw-src-gain-mixin"
+
 # CAVS SSP topology for TGL
 "cavs-nocodec\;cavs-tgl-nocodec\;NUM_DMICS=4,PDM1_MIC_A_ENABLE=1,PDM1_MIC_B_ENABLE=1,\
 PREPROCESS_PLUGINS=nhlt,NHLT_BIN=nhlt-cavs-tgl-nocodec.bin"

tools/topology/topology2/cavs/cavs-sdw-src-gain-mixin.conf

@@ -0,0 +1,181 @@
+<searchdir:cavs>
+<searchdir:include>
+<searchdir:include/common>
+<searchdir:include/components>
+<searchdir:include/components/cavs>
+<searchdir:include/dais>
+<searchdir:include/controls>
+<searchdir:include/pipelines/cavs>
+
+<vendor-token.conf>
+<tokens.conf>
+<virtual.conf>
+<src-gain-mixin-playback.conf>
+<mixout-gain-dai-copier-playback.conf>
+<passthrough-capture.conf>
+<passthrough-be.conf>
+<data.conf>
+<pcm.conf>
+<pcm_caps.conf>
+<fe_dai.conf>
+<alh.conf>
+<hw_config.conf>
+<manifest.conf>
+<route.conf>
+<cavs/common_definitions.conf>
+<copier.conf>
+<pipeline.conf>
+<dai.conf>
+<host.conf>
+
+Define {
+	SDW_PLAYBACK_PCM	'SDW0-Playback'
+	SDW_CAPTURE_PCM		'SDW0-Capture'
+	PLAYBACK_LINK_ID	0
+	CAPTURE_LINK_ID		1
+}
+
+#
+# List of all DAIs
+#
+#ALH Index: 0, Direction: duplex
+Object.Dai {
+	ALH."2" {
+		id 		$PLAYBACK_LINK_ID
+		direction	"playback"
+		name		$SDW_PLAYBACK_PCM
+		default_hw_conf_id	0
+		rate			48000
+		channels		2
+
+		Object.Base.hw_config."ALH2" {
+			id	0
+		}
+	}
+	ALH."3" {
+		id 		$CAPTURE_LINK_ID
+		direction	"capture"
+		name		$SDW_CAPTURE_PCM
+		default_hw_conf_id	1
+		rate			48000
+		channels		2
+
+		Object.Base.hw_config."ALH3" {
+			id	1
+		}
+	}
+}
+
+#
+# Pipeline definitions
+#
+
+# Pipeline ID:1 PCM ID: 0
+Object.Pipeline {
+	src-gain-mixin-playback."1" {
+		format "s16le"
+		index 1
+
+		Object.Widget.copier.1.stream_name	"Gain Playback 0"
+                Object.Widget.gain.1{
+                        Object.Control.mixer.1 {
+                                name 'Src Playback Volume'
+                        }
+                }
+
+	}
+	mixout-gain-dai-copier-playback."3" {
+		index 2
+
+		Object.Widget.pipeline.1 {
+			stream_name	'copier.ALH.2.1'
+		}
+		Object.Widget.copier.1 {
+			stream_name	$SDW_PLAYBACK_PCM
+			dai_type	"ALH"
+			copier_type	"ALH"
+			type		"dai_in"
+			node_type $ALH_LINK_OUTPUT_CLASS
+		}
+
+                Object.Widget.gain.1 {
+                        Object.Control.mixer.1 {
+                                name 'Main Playback Volume'
+                        }
+                }
+
+		format s16le
+	}
+
+	passthrough-capture."4" {
+		format	"s16le"
+		index 4
+
+		Object.Widget.copier.1.stream_name	"Passthrough Capture 0"
+		Object.Widget.copier.1.Object.Base.audio_format.1 {
+			# 32 -> 16 bits conversion is done here,
+			# so in_bit_depth is 32 (and out_bit_depth is 16).
+			in_bit_depth	32
+		}
+	}
+	passthrough-be.2 {
+		direction	"capture"
+		index 3
+		copier_type "ALH"
+		Object.Widget.pipeline.1 {
+			stream_name	'copier.ALH.3.1'
+		}
+		Object.Widget.copier.1 {
+			stream_name	$SDW_CAPTURE_PCM
+			dai_type	"ALH"
+			copier_type	"ALH"
+			type		"dai_out"
+			node_type $ALH_LINK_INPUT_CLASS
+		}
+		format s16le
+	}
+}
+
+Object.PCM {
+	pcm."0" {
+		name	"Jack out"
+		id 0
+		direction	"playback"
+		Object.Base.fe_dai."Jack out" {}
+
+		Object.PCM.pcm_caps."playback" {
+			name "Gain Playback 0"
+			formats 'S16_LE,S32_LE'
+			rate_min 16000
+			rate_max 48000
+		}
+	}
+	pcm."1" {
+		name	"Jack in"
+		id 1
+		direction	"capture"
+		Object.Base.fe_dai."Jack in" {}
+
+		Object.PCM.pcm_caps."capture" {
+			name "Passthrough Capture 0"
+			formats 'S16_LE,S32_LE'
+		}
+	}
+}
+
+Object.Base {
+	route."1" {
+		source	"mixin.1.1"
+		sink	"mixout.2.1"
+	}
+
+        route."2" {
+                source 'gain.2.1'
+                sink 'copier.ALH.2.1'
+        }
+
+	route."3" {
+		source	"copier.ALH.3.1"
+		sink	"copier.host.4.1"
+	}
+}

tools/topology/topology2/include/common/audio_format.conf

@@ -232,6 +232,7 @@ Class.Base."audio_format" {
 	out_fmt_cfg	"$[($out_channels | ($out_valid_bit_depth * 256)) | ($out_sample_type * 65536)]"
 
 	# math expression for computing input/put buffer sizes
-	ibs "$[($in_channels * ($in_rate / 1000)) * ($in_bit_depth / 8)]"
-	obs "$[($out_channels * ($out_rate / 1000)) * ($out_bit_depth / 8)]"
+	# for 11.025 22.05, 44.1, 88.2 and 176.4khz, we need to round it to ceiling value
+	ibs "$[($in_channels * ($[($in_rate + 999)] / 1000)) * ($in_bit_depth / 8)]"
+	obs "$[($out_channels * ($[($out_rate + 999)] / 1000)) * ($out_bit_depth / 8)]"
 }

tools/topology/topology2/include/components/cavs/src.conf

@@ -0,0 +1,96 @@
+#
+#
+# A generic src component. All attributes defined herein are namespaced
+# by alsatplg to "Object.Widget.src.N.attribute_name"
+#
+# Usage: this component can be used by instantiating it in the parent object. i.e.
+#
+# 	Object.Widget.src."N" {
+#		period_sink_count	2
+#		period_source_count	2
+#		format			"s24le"
+#		rate_out		48000
+#	}
+#
+# Where N is the unique instance number for the src widget within the same alsaconf node.
+
+Class.Widget."src" {
+	#
+	# Pipeline ID for the src widget object
+	#
+	DefineAttribute."index" {}
+
+	#
+	# object instance
+	#
+	DefineAttribute."instance" {}
+
+	#include common component definition
+	<include/components/widget-common.conf>
+
+	#
+	# widget UUID
+	#
+	DefineAttribute."uuid" {
+		type	"string"
+		# Token set reference name and type
+		token_ref	"sof_tkn_comp.uuid"
+	}
+
+	#
+	# Bespoke attributes
+	#
+
+	# Target sample rate
+	DefineAttribute."rate_out" {
+		# Token set reference name and type
+		token_ref	"sof_tkn_src.word"
+	}
+
+        DefineAttribute."num_audio_formats" {
+                # Token set reference name and type
+                token_ref       "sof_tkn_comp.word"
+        }
+
+	attributes {
+		#
+		# The widget name would be constructed using the index and instance attributes.
+		# For ex: "src.1.1" or "src.10.2" etc.
+		#
+		!constructor [
+			"index"
+			"instance"
+		]
+
+		!mandatory [
+			"rate_out"
+		]
+
+		#
+		# immutable attributes cannot be modified in the object instance
+		#
+		!immutable [
+			"uuid"
+			"type"
+		]
+
+		#
+		# deprecated attributes should not be added in the object instance
+		#
+		!deprecated [
+			"preload_count"
+		]
+
+		unique "instance"
+	}
+
+	#
+	# Default attributes
+	#
+	type		"src"
+	# E61BB28D-149A-4C1F-B709-46823EF5F5AE
+	uuid 		"8d:b2:1b:e6:9a:14:1f:4c:b7:09:46:82:3e:f5:f5:ae"
+	no_pm		"true"
+
+	rate_out	48000
+}