sof-soundwire: cleanups for codecs with multiple functions

The load mechanism assumed only one multi-codec in the system, but
we saw in #774 multiple instances of those codecs (rt1320 and rt713).

Make the load mechanism straight:

- introduce file variables
- remove shadow variables
- probe multi-codecs separately and modify the file variables
- test for duplicate file inclusion (in both sof-soundwire / HiFi configs)
- merge dmic configs for rt712,rt713 to one file

This change also improves filters for speaker/headset/mic init includes.

Closes: https://github.com/alsa-project/alsa-ucm-conf/pull/775
Link: https://github.com/alsa-project/alsa-ucm-conf/issues/774
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

ucm2/codecs/rt1320/init.conf

@@ -16,7 +16,7 @@ If.spk_init_rt1320 {
 	Condition {
 		Type String
 		Needle "rt1320"
-		Haystack "${var:MultiSpeakerShadow}"
+		Haystack "${var:SpeakerCodec1}"
 	}
 	True {
 		Macro.num1.rt1320spkled { ForAmps "[12]" Amp 1 }
@@ -83,7 +83,7 @@ If.mic_init_rt1320 {
 	Condition {
 		Type String
 		Needle "rt1320"
-		Haystack "${var:MultiMicShadow}"
+		Haystack "${var:MicCodec1}"
 	}
 	True {
 		Macro.num1.rt1320micled { ForMics "[12]" Mic 1 }

ucm2/codecs/rt712-dmic/init.conf

@@ -1,6 +0,0 @@
-# RT712-dmic specific volume control settings
-
-BootSequence [
-	cset "name='rt712-dmic ADC 25 Mux' 'DMIC1'"
-	cset "name='rt712-dmic FU1E Capture Switch' 1"
-]

ucm2/codecs/rt712/init.conf

@@ -7,11 +7,24 @@ BootSequence [
 	cset "name='rt712 FU0F Capture Switch' 1"
 ]
 
+If.rt712dmic_init {
+	Condition {
+		Type String
+		String1 "rt712-dmic"
+		String2 "${var:MicCodec1}"
+	}
+	True.BootSequence [
+		cset "name='rt712-dmic ADC 25 Mux' 'DMIC1'"
+		cset "name='rt712-dmic FU1E Capture Switch' 1"
+	]
+}
+
 If.rt712vb_init {
 	Condition {
 		Type RegexMatch
-		Regex "(rt712(-sdca)?)"
-		String "${var:MultiMicShadow}"
+		# guard with '=' to avoid empty or rt712-dmic string matching
+		Regex "=(rt712(-sdca)?)="
+		String "=${var:MicCodec1}="
 	}
 	True.BootSequence [
 		# RT712-VB integrated with DMIC

ucm2/codecs/rt713-dmic/init.conf

@@ -1,6 +0,0 @@
-# RT713-dmic specific volume control settings
-
-BootSequence [
-	cset "name='rt713-dmic ADC 25 Mux' 'DMIC1'"
-	cset "name='rt713-dmic FU1E Capture Switch' 1"
-]

ucm2/codecs/rt713/init.conf

@@ -7,11 +7,23 @@ BootSequence [
 	cset "name='rt713 FU0F Capture Switch' 1"
 ]
 
+If.rt713dmic_init {
+	Condition {
+		Type String
+		String1 "rt713-dmic"
+		String2 "${var:MicCodec1}"
+	}
+	True.BootSequence [
+		cset "name='rt713-dmic ADC 25 Mux' 'DMIC1'"
+		cset "name='rt713-dmic FU1E Capture Switch' 1"
+	]
+}
+
 If.rt713vb_init {
 	Condition {
 		Type String
 		String1 "rt713"
-		String2 "${var:MultiMicShadow}"
+		String2 "${var:MicCodec1}"
 	}
 	True.BootSequence [
 		# RT713-VB integrated with DMIC

ucm2/sof-soundwire/HiFi.conf

@@ -8,36 +8,43 @@ SectionVerb {
 	Value.TQ "HiFi"
 }
 
-If.multicodec {
+If.spk {
 	Condition {
 		Type String
-		Empty "${var:MultiCodec1}"
+		Empty "${var:SpeakerCodecFile}"
 	}
-	False.Include.multicodec.File "/sof-soundwire/${var:MultiCodec1}.conf"
+	False.Include.a.File "/sof-soundwire/${var:SpeakerCodecFile}.conf"
 }
 
-If.spkdev {
+If.mic {
 	Condition {
 		Type String
-		Empty "${var:SpeakerCodec1}"
+		Empty "${var:MicCodecFile}"
+	}
+	False.If.dup {
+		Condition {
+			Type String
+			String1 "${var:MicCodecFile}"
+			String2 "${var:SpeakerCodecFile}"
+		}
+		False.Include.a.File "/sof-soundwire/${var:MicCodecFile}.conf"
 	}
-	False.Include.spkdev.File "/sof-soundwire/${var:SpeakerCodec1}.conf"
 }
 
-If.micdev {
+If.headset {
 	Condition {
 		Type String
-		Empty "${var:MicCodec1}"
+		Empty "${var:HeadsetCodecFile}"
 	}
-	False.Include.micdev.File "/sof-soundwire/${var:MicCodec1}.conf"
-}
-
-If.hsdev {
-	Condition {
-		Type String
-		Empty "${var:HeadsetCodec1}"
+	False.If.dup {
+		Condition {
+			Type String
+			# guard with "=" to avoid empty string matching
+			Needle "=${var:HeadsetCodecFile}="
+			Haystack "=${var:SpeakerCodecFile}=${var:MicCodecFile}="
+		}
+		False.Include.a.File "/sof-soundwire/${var:HeadsetCodecFile}.conf"
 	}
-	False.Include.hsdev.File "/sof-soundwire/${var:HeadsetCodec1}.conf"
 }
 
 <sof-soundwire/Hdmi.conf>

ucm2/sof-soundwire/rt1320.conf

@@ -71,7 +71,7 @@ If.codecmic {
 	Condition {
 		Type String
 		Needle "rt1320"
-		Haystack "${var:MultiMicShadow}"
+		Haystack "${var:MicCodec1}"
 	}
 	True {
 		SectionDevice."Mic" {

ucm2/sof-soundwire/rt712-dmic.conf

@@ -1,21 +0,0 @@
-# Use case Configuration for sof-soundwire card
-
-SectionDevice."Mic" {
-	Comment	"SoundWire microphones"
-
-	EnableSequence [
-		cset "name='rt712-dmic FU1E Capture Switch' 1"
-	]
-
-	DisableSequence [
-		cset "name='rt712-dmic FU1E Capture Switch' 0"
-	]
-
-	Value {
-		CapturePriority 100
-		CapturePCM "hw:${CardId},4"
-		CaptureSwitch "rt712-dmic FU1E Capture Switch"
-		CaptureVolume "rt712-dmic FU1E Capture Volume"
-		CaptureMixerElem "rt712-dmic FU1E"
-	}
-}

ucm2/sof-soundwire/rt712.conf

@@ -1,10 +1,10 @@
 # Use case Configuration for sof-soundwire card
 
-If.codecspk {
+If.codec_spk {
 	Condition {
 		Type RegexMatch
 		Regex "(rt712(-sdca)?)"
-		String "${var:MultiSpeakerShadow}"
+		String "${var:SpeakerCodec1}"
 	}
 	True {
 		SectionDevice."Speaker" {
@@ -47,50 +47,89 @@ If.codecspk {
 	}
 }
 
-SectionDevice."Headphones" {
-	Comment	"Headphones"
-
-	EnableSequence [
-		cset "name='Headphone Switch' on"
-	]
-
-	DisableSequence [
-		cset "name='Headphone Switch' off"
-	]
-
-	Value {
-	      PlaybackPriority 200
-	      PlaybackPCM "hw:${CardId}"
-	      JackControl "Headphone Jack"
-	}
-}
-
-SectionDevice."Headset" {
-	Comment "Headset Mono Microphone"
-
-	EnableSequence [
-		cset "name='rt712 FU0F Capture Switch' on"
-	]
-
-	DisableSequence [
-		cset "name='rt712 FU0F Capture Switch' off"
-	]
-
-	Value {
-		CapturePriority 300
-		CapturePCM "hw:${CardId},1"
-		CaptureSwitch "rt712 FU0F Capture Switch"
-		CaptureVolume "rt712 FU0F Capture Volume"
-		CaptureMixerElem "rt712 FU0F"
-		JackControl "Headset Mic Jack"
-	}
-}
-
-If.codecmic {
+If.codec_hs {
 	Condition {
 		Type RegexMatch
 		Regex "(rt712(-sdca)?)"
-		String "${var:MultiMicShadow}"
+		String "${var:HeadsetCodec1}"
+	}
+	True {
+		SectionDevice."Headphones" {
+			Comment	"Headphones"
+
+			EnableSequence [
+				cset "name='Headphone Switch' on"
+			]
+
+			DisableSequence [
+				cset "name='Headphone Switch' off"
+			]
+
+			Value {
+			      PlaybackPriority 200
+			      PlaybackPCM "hw:${CardId}"
+			      JackControl "Headphone Jack"
+			}
+		}
+
+		SectionDevice."Headset" {
+			Comment "Headset Mono Microphone"
+
+			EnableSequence [
+				cset "name='rt712 FU0F Capture Switch' on"
+			]
+
+			DisableSequence [
+				cset "name='rt712 FU0F Capture Switch' off"
+			]
+
+			Value {
+				CapturePriority 300
+				CapturePCM "hw:${CardId},1"
+				CaptureSwitch "rt712 FU0F Capture Switch"
+				CaptureVolume "rt712 FU0F Capture Volume"
+				CaptureMixerElem "rt712 FU0F"
+				JackControl "Headset Mic Jack"
+			}
+		}
+	}
+}
+
+If.codec_dmic {
+	Condition {
+		Type String
+		String1 "rt712-dmic"
+		String2 "${var:MicCodec1}"
+	}
+	True {
+		SectionDevice."Mic" {
+			Comment	"SoundWire microphones"
+
+			EnableSequence [
+				cset "name='rt712-dmic FU1E Capture Switch' 1"
+			]
+
+			DisableSequence [
+				cset "name='rt712-dmic FU1E Capture Switch' 0"
+			]
+
+			Value {
+				CapturePriority 100
+				CapturePCM "hw:${CardId},4"
+				CaptureSwitch "rt712-dmic FU1E Capture Switch"
+				CaptureVolume "rt712-dmic FU1E Capture Volume"
+				CaptureMixerElem "rt712-dmic FU1E"
+			}
+		}
+	}
+}
+
+If.codec_mic {
+	Condition {
+		Type RegexMatch
+		# guard with '=' to avoid empty or rt712-dmic string matching
+		Regex "=(rt712(-sdca)?)="
+		String "=${var:MicCodec1}="
 	}
 	True {
 		SectionDevice."Mic" {

ucm2/sof-soundwire/rt713-dmic.conf

@@ -1,21 +0,0 @@
-# Use case Configuration for sof-soundwire card
-
-SectionDevice."Mic" {
-	Comment	"SoundWire microphones"
-
-	EnableSequence [
-		cset "name='rt713-dmic FU1E Capture Switch' 1"
-	]
-
-	DisableSequence [
-		cset "name='rt713-dmic FU1E Capture Switch' 0"
-	]
-
-	Value {
-		CapturePriority 100
-		CapturePCM "hw:${CardId},4"
-		CaptureSwitch "rt713-dmic FU1E Capture Switch"
-		CaptureVolume "rt713-dmic FU1E Capture Volume"
-		CaptureMixerElem "rt713-dmic FU1E"
-	}
-}

ucm2/sof-soundwire/rt713.conf

@@ -1,49 +1,87 @@
 # Use case Configuration for sof-soundwire card
 
-SectionDevice."Headphones" {
-	Comment	"Headphones"
+If.codec_hs {
+	Condition {
+		Type RegexMatch
+		Regex "(rt713(-sdca)?)"
+		String "${var:HeadsetCodec1}"
+	}
+	True {
+		SectionDevice."Headphones" {
+			Comment	"Headphones"
 
-	EnableSequence [
-		cset "name='Headphone Switch' on"
-	]
+			EnableSequence [
+				cset "name='Headphone Switch' on"
+			]
 
-	DisableSequence [
-		cset "name='Headphone Switch' off"
-	]
+			DisableSequence [
+				cset "name='Headphone Switch' off"
+			]
 
-	Value {
-	      PlaybackPriority 200
-	      PlaybackPCM "hw:${CardId}"
-	      JackControl "Headphone Jack"
+			Value {
+			      PlaybackPriority 200
+			      PlaybackPCM "hw:${CardId}"
+			      JackControl "Headphone Jack"
+			}
+		}
+
+		SectionDevice."Headset" {
+			Comment "Headset Microphone"
+
+			EnableSequence [
+				cset "name='rt713 FU0F Capture Switch' 1"
+			]
+
+			DisableSequence [
+				cset "name='rt713 FU0F Capture Switch' 0"
+			]
+
+			Value {
+				CapturePriority 200
+				CapturePCM "hw:${CardId},1"
+				JackControl "Headset Mic Jack"
+				CaptureSwitch "rt713 FU0F Capture Switch"
+				CaptureVolume "rt713 FU0F Capture Volume"
+				CaptureMixerElem "rt713 FU0F"
+			}
+		}
 	}
 }
 
-SectionDevice."Headset" {
-	Comment "Headset Microphone"
+If.codec_dmic {
+	Condition {
+		Type String
+		String1 "rt713-dmic"
+		String2 "${var:MicCodec1}"
+	}
+	True {
+		SectionDevice."Mic" {
+			Comment	"SoundWire microphones"
 
-	EnableSequence [
-		cset "name='rt713 FU0F Capture Switch' 1"
-	]
+			EnableSequence [
+				cset "name='rt713-dmic FU1E Capture Switch' 1"
+			]
 
-	DisableSequence [
-		cset "name='rt713 FU0F Capture Switch' 0"
-	]
+			DisableSequence [
+				cset "name='rt713-dmic FU1E Capture Switch' 0"
+			]
 
-	Value {
-		CapturePriority 200
-		CapturePCM "hw:${CardId},1"
-		JackControl "Headset Mic Jack"
-		CaptureSwitch "rt713 FU0F Capture Switch"
-		CaptureVolume "rt713 FU0F Capture Volume"
-		CaptureMixerElem "rt713 FU0F"
+			Value {
+				CapturePriority 100
+				CapturePCM "hw:${CardId},4"
+				CaptureSwitch "rt713-dmic FU1E Capture Switch"
+				CaptureVolume "rt713-dmic FU1E Capture Volume"
+				CaptureMixerElem "rt713-dmic FU1E"
+			}
+		}
 	}
 }
 
-If.codecmic {
+If.codec_mic {
 	Condition {
 		Type String
 		String1 "rt713"
-		String2 "${var:MultiMicShadow}"
+		String2 "${var:MicCodec1}"
 	}
 	True {
 		SectionDevice."Mic" {

ucm2/sof-soundwire/rt721.conf

@@ -4,7 +4,7 @@ If.codecmic {
 	Condition {
 		Type RegexMatch
 		Regex "(rt721(-sdca)?)"
-		String "${var:MultiMicShadow}"
+		String "${var:MicCodec1}"
 	}
 	True {
 		SectionDevice."Mic" {
@@ -33,7 +33,7 @@ If.codecspk {
 	Condition {
 		Type RegexMatch
 		Regex "(rt721(-sdca)?)"
-		String "${var:MultiSpeakerShadow}"
+		String "${var:SpeakerCodec1}"
 	}
 	True {
 		SectionDevice."Speaker" {

ucm2/sof-soundwire/rt722.conf

@@ -4,7 +4,7 @@ If.codecmic {
 	Condition {
 		Type RegexMatch
 		Regex "(rt722(-sdca)?)"
-		String "${var:MultiMicShadow}"
+		String "${var:MicCodec1}"
 	}
 	True {
 		SectionDevice."Mic" {
@@ -33,7 +33,7 @@ If.codecspk {
 	Condition {
 		Type RegexMatch
 		Regex "(rt722(-sdca)?)"
-		String "${var:MultiSpeakerShadow}"
+		String "${var:SpeakerCodec1}"
 	}
 	True {
 		SectionDevice."Speaker" {

ucm2/sof-soundwire/sof-soundwire.conf

@@ -1,4 +1,4 @@
-Syntax 7
+Syntax 8
 
 SectionUseCase."HiFi" {
 	File "/sof-soundwire/HiFi.conf"
@@ -18,6 +18,7 @@ Define {
 	Mics1 "0"
 	Iec61937Pcms1 ""
 	MultiCodec1 ""
+	MultiCodecRegex "rt712|rt713|rt721|rt722|rt1320"
 }
 
 DefineRegex {
@@ -50,12 +51,19 @@ DefineRegex {
 		String "${CardComponents}"
 	}
 	MultiCodec {
-		Regex "(rt712|rt713|rt721|rt722|rt1320)"
+		Regex "(${var:MultiCodecRegex})"
 		String "${var:SpeakerCodec1} ${var:HeadsetCodec1} ${var:MicCodec1}"
 	}
 }
 
-# check to keep combatibility with older kernels that have two separate spk: tags
+# set default file variables after regex evaluation
+If.codec_default.Append.Define {
+	SpeakerCodecFile "${var:SpeakerCodec1}"
+	MicCodecFile "${var:MicCodec1}"
+	HeadsetCodecFile "${var:HeadsetCodec1}"
+}
+
+# check to keep compatibility with older kernels that have two separate spk: tags
 If.old_multi_spk {
 	Condition {
 		Type RegexMatch
@@ -65,83 +73,119 @@ If.old_multi_spk {
 	True.Define.SpeakerCodec1 "cs42l43-spk+cs35l56"
 }
 
+DefineMacro.MultiCodecInit.If.a {
+	Condition {
+		Type String
+		# guard with "=" to not match the codec name in the middle
+		Haystack "=${var:SpeakerCodec1}=${var:HeadsetCodec1}=${var:MicCodec1}"
+		Needle "=${var:__CodecId}"
+	}
+	True {
+		If.spk {
+			Condition {
+				Type RegexMatch
+				# guard with "=" to avoid empty string matching
+				Regex "=(${var:__CodecId}(-sdca)?)="
+				String "=${var:SpeakerCodec1}="
+			}
+			True.Define.SpeakerCodecFile "${var:__CodecId}"
+		}
+		If.headset {
+			Condition {
+				Type RegexMatch
+				# guard with "=" to avoid empty string matching
+				Regex "=(${var:__CodecId}(-sdca)?)="
+				String "=${var:HeadsetCodec1}="
+			}
+			True.Define.HeadsetCodecFile "${var:__CodecId}"
+		}
+		If.mic {
+			Condition {
+				Type RegexMatch
+				# guard with "=" to avoid empty string matching
+				Regex "=(${var:__CodecId}(-sdca|-dmic)?)="
+				String "=${var:MicCodec1}="
+			}
+			True.Define.MicCodecFile "${var:__CodecId}"
+		}
+	}
+}
+
+# probe codecs with multiple functions, modify file variables
 If.multi_init {
 	Condition {
 		Type String
 		Empty "${var:MultiCodec1}"
 	}
 	False {
-		Define {
-			MultiSpeakerShadow "${var:SpeakerCodec1}"
-			MultiMicShadow "${var:MicCodec1}"
+		Macro.rt712.MultiCodecInit "CodecId=rt712"
+		Macro.rt713.MultiCodecInit "CodecId=rt713"
+		Macro.rt721.MultiCodecInit "CodecId=rt721"
+		Macro.rt722.MultiCodecInit "CodecId=rt722"
+		Macro.rt1320.MultiCodecInit "CodecId=rt1320"
+	}
+}
+
+If.spk {
+	Condition {
+		Type String
+		Empty "${var:SpeakerCodecFile}"
+	}
+	False.If.filter {
+		Condition {
+			Type RegexMatch
+			Regex "(${var:MultiCodecRegex}|rt1318|cs42l43-spk(\\+cs35l56)?|cs35l56((-bridge)|(\\+cs42l43-spk))?)"
+			String "${var:SpeakerCodecFile}"
 		}
-		Include.multi_init.File "/codecs/${var:MultiCodec1}/init.conf"
+		True.Include.a.File "/codecs/${var:SpeakerCodecFile}/init.conf"
 	}
 }
 
-If.multi_speaker {
+If.mic {
 	Condition {
-		Type RegexMatch
-		# guard with "=" to avoid empty string matching
-		Regex "=(${var:MultiCodec1}(-sdca)?)="
-		String "=${var:SpeakerCodec1}="
+		Type String
+		Empty "${var:MicCodecFile}"
 	}
-	True {
-		Define.SpeakerCodec1 ""
+	False.If.dup {
+		Condition {
+			Type String
+			String1 "${var:MicCodecFile}"
+			String2 "${var:SpeakerCodecFile}"
+		}
+		False.If.filter {
+			Condition {
+				Type RegexMatch
+				Regex "(${var:MultiCodecRegex}|(acp|cs42l43|cs42l45|cs47l47)-dmic|rt715(-sdca)?)"
+				String "${var:MicCodecFile}"
+			}
+			True.Include.a.File "/codecs/${var:MicCodecFile}/init.conf"
+		}
 	}
 }
 
-If.multi_mic {
+If.headset {
 	Condition {
-		Type RegexMatch
-		# guard with "=" to avoid empty string matching
-		Regex "=(${var:MultiCodec1}(-sdca)?)="
-		String "=${var:MicCodec1}="
+		Type String
+		Empty "${var:HeadsetCodecFile}"
 	}
-	True {
-		Define.MicCodec1 ""
+	False.If.dup {
+		Condition {
+			Type String
+			# guard with "=" to avoid empty string matching
+			Needle "=${var:HeadsetCodecFile}="
+			Haystack "=${var:SpeakerCodecFile}=${var:MicCodecFile}="
+		}
+		False.If.filter {
+			Condition {
+				Type RegexMatch
+				Regex "(${var:MultiCodecRegex}|cs42l43|cs42l45|cs47l47|rt5682|rt700|rt711)"
+				String "${var:HeadsetCodecFile}"
+			}
+			True.Include.a.File "/codecs/${var:HeadsetCodecFile}/init.conf"
+		}
 	}
 }
 
-If.multi_headset {
-	Condition {
-		Type RegexMatch
-		# guard with "=" to avoid empty string matching
-		Regex "=(${var:MultiCodec1}(-sdca)?)="
-		String "=${var:HeadsetCodec1}="
-	}
-	True {
-		Define.HeadsetCodec1 ""
-	}
-}
-
-If.spk_init {
-	Condition {
-		Type RegexMatch
-		Regex "(rt1318(-1)?|cs42l43-spk(\\+cs35l56)?|cs35l56((-bridge)|(\\+cs42l43-spk))?)"
-		String "${var:SpeakerCodec1}"
-	}
-	True.Include.spk_init.File "/codecs/${var:SpeakerCodec1}/init.conf"
-}
-
-If.hs_init {
-	Condition {
-		Type RegexMatch
-		Regex "(cs42l43|cs42l45|cs47l47|rt5682|rt700|rt711|rt713(-sdca)?|rt722)"
-		String "${var:HeadsetCodec1}"
-	}
-	True.Include.hs_init.File "/codecs/${var:HeadsetCodec1}/init.conf"
-}
-
-If.mic_init {
-	Condition {
-		Type RegexMatch
-		Regex "((acp|cs42l43|cs42l45|cs47l47|rt712|rt713)-dmic|rt715(-sdca)?)"
-		String "${var:MicCodec1}"
-	}
-	True.Include.mic_init.File "/codecs/${var:MicCodec1}/init.conf"
-}
-
 If.mic_init_rt715 {
 	Condition {
 		Type String