samsung-t0lte: add speaker and mic audio

Thanks to @jenneron, @Toonis and a few others, I have managed to get audio partially working on t0lte. I would have got headphone working too, but it appears the upstream kernel driver actually only properly works for samsung-m0. I don't (yet) have the expertise to amend the driver code.

device/testing/device-samsung-t0lte/ucm/HiFi.conf

+# Based on https://github.com/LineageOS/android_device_samsung_t0lte/blob/cm-14.1/configs/tiny_hw.xml
+
+SectionVerb {
+
+	EnableSequence [
+
+		cdev "hw:Midas"
+
+		# do not change the adc & dac source of AIF2
+		cset "name='AIF2DACL Source' 0"
+		cset "name='AIF2DACR Source' 0"
+		cset "name='AIF2ADCL Source' 0"
+		cset "name='AIF2ADCR Source' 1"
+
+		# AIF1->DAC1
+		cset "name='DAC1 Switch' 1"
+
+		# general
+		cset "name='IN1L ZC Switch' 0"
+		cset "name='IN1R ZC Switch' 0"
+		cset "name='IN2L ZC Switch' 0"
+		cset "name='IN2R ZC Switch' 0"
+		cset "name='Output ZC Switch' 0"
+		cset "name='Speaker ZC Switch' 0"
+		cset "name='Headphone ZC Switch' 0"
+
+		# AIF1->DAC1
+		cset "name='DAC1L Mixer AIF1.1 Switch' 1"
+		cset "name='DAC1R Mixer AIF1.1 Switch' 1"
+		cset "name='DAC1 Switch' 1"
+
+		# ADC->AIF2
+		cset "name='AIF2DAC2L Mixer Left Sidetone Switch' 1"
+		cset "name='AIF2DAC2L Mixer Right Sidetone Switch' 0"
+		cset "name='AIF2DAC2R Mixer Left Sidetone Switch' 0"
+		cset "name='AIF2DAC2R Mixer Right Sidetone Switch' 1"
+		cset "name='DAC2 Left Sidetone Volume' 12"
+		cset "name='DAC2 Right Sidetone Volume' 12"
+		cset "name='DAC2 Switch' 1"
+
+		# DAC1->HP
+		cset "name='Left Headphone Mux' Mixer"
+		cset "name='Right Headphone Mux' Mixer"
+
+		# DAC1->SPKL/R->SPKL/R Boost->SPK 
+		cset "name='SPKL DAC1 Switch' 1"
+		cset "name='SPKR DAC1 Switch' 1"
+		cset "name='SPKL Boost SPKL Switch' 1"
+		cset "name='SPKL Boost SPKR Switch' 1"
+		cset "name='SPKR Boost SPKL Switch' 0"
+		cset "name='SPKR Boost SPKR Switch' 0"
+		cset "name='Speaker Mixer Volume' 3"
+
+		# DAC->Output mixer->Earpiece 
+		cset "name='Left Output Mixer DAC Switch' 1"
+		cset "name='Right Output Mixer DAC Switch' 1"
+		cset "name='Earpiece Mixer Left Output Switch' 1"
+		cset "name='Earpiece Mixer Right Output Switch' 1"
+		cset "name='Earpiece Switch' 1"
+
+		# LINEOUT
+		cset "name='LINEOUT2N Mixer Left Output Switch' 1"
+		cset "name='LINEOUT2P Mixer Right Output Switch' 1"
+		cset "name='LINEOUT1N Mixer Right Output Switch' 1"
+		cset "name='LINEOUT1P Mixer Left Output Switch' 1"
+
+		# Input mixer->ADC->AIF1.1
+		cset "name='AIF1ADC1L Mixer ADC/DMIC Switch' 1"
+		cset "name='AIF1ADC1R Mixer ADC/DMIC Switch' 1"
+
+		# Main Mic->IN1LP/N->Input Mixer with +30dB at mixer
+		cset "name='IN1L PGA IN1LP Switch' 1"
+		cset "name='IN1L PGA IN1LN Switch' 1"
+		cset "name='MIXINL IN1L Volume' 1"
+		cset "name='IN1L Switch' 1"
+
+		# Sub Mic->IN1RP/N->Input Mixer with +30dB at mixer
+		cset "name='IN1R PGA IN1RP Switch' 1"
+		cset "name='IN1R PGA IN1RN Switch' 1"
+		cset "name='MIXINR IN1R Volume' 1"
+		cset "name='IN1R Switch' 1"
+
+		# FM Radio->IN2RP/N->Input Mixer with +30dB at mixer
+		cset "name='IN2R PGA IN2RP Switch' 1"
+		cset "name='IN2R PGA IN2RN Switch' 1"
+		cset "name='MIXINR IN2R Volume' 1"
+		cset "name='IN2R Switch' 1"
+
+		# Ear Mic->IN2LP/N->Input Mixer with +30dB at mixer
+		cset "name='IN2L PGA IN2LP Switch' 1"
+		cset "name='IN2L PGA IN2LN Switch' 1"
+		cset "name='MIXINL IN2L Volume' 1"
+		cset "name='IN2L Switch' 1"
+
+		# Input mixer->ADC->AIF1
+		cset "name='AIF1ADC1L Mixer ADC/DMIC Switch' 1"
+		cset "name='AIF1ADC1R Mixer ADC/DMIC Switch' 1"
+		cset "name='ADCL Mux' ADC"
+
+		# HPF on to take out some bounce
+		cset "name='Sidetone HPF Switch' 0"
+
+		# Work around core issue
+		cset "name='ADCL Mux' DMIC"
+		cset "name='ADCL Mux' ADC"
+		cset "name='ADCR Mux' DMIC"
+		cset "name='ADCR Mux' ADC"
+
+		# AIF2ADCDAT to AIF3ADC mux
+		cset "name='AIF3ADC Mux' 1"
+
+		# Default all outputs off
+		cset "name='HP Switch' 0"
+		cset "name='SPK Switch' 0"
+		cset "name='RCV Switch' 0"
+		cset "name='LINE Switch' 0"
+		cset "name='HDMI Switch' 0"
+
+		# Default all inputs off
+		cset "name='Main Mic Switch' 0"
+		cset "name='Sub Mic Switch' 0"
+		cset "name='Headset Mic Switch' 0"
+		cset "name='FM In Switch' 0"
+	]
+
+	DisableSequence [
+	]
+
+}
+
+SectionDevice."Speaker" {
+
+	Comment "Built-in speaker"
+
+	EnableSequence [
+		cset "name='SPK Switch' 1"
+		cset "name='AIF1DAC1 Volume' 96"
+		cset "name='AIF1 Boost Volume' 0"
+		cset "name='DAC1 Volume' 96"
+		cset "name='SPKL DAC1 Volume' 1"
+		cset "name='SPKR DAC1 Volume' 1"
+		cset "name='Speaker Mixer Volume' 3"
+		cset "name='Speaker Boost Volume' 6"
+		cset "name='Speaker Volume' 57"
+		cset "name='AIF1DAC1 EQ Switch' 1"
+		cset "name='AIF1DAC1 EQ1 Volume' 9"
+		cset "name='AIF1DAC1 EQ2 Volume' 7"
+		cset "name='AIF1DAC1 EQ3 Volume' 10"
+		cset "name='AIF1DAC1 EQ4 Volume' 13"
+		cset "name='AIF1DAC1 EQ5 Volume' 12"
+	]
+
+	DisableSequence [
+		cset "name='SPK Switch' 0"
+		cset "name='AIF1DAC1 Volume' 96"
+		cset "name='AIF1 Boost Volume' 0"
+		cset "name='DAC1 Volume' 96"
+		cset "name='SPKL DAC1 Volume' 1"
+		cset "name='SPKR DAC1 Volume' 1"
+		cset "name='Speaker Mixer Volume' 0"
+		cset "name='Speaker Volume' 0"
+		cset "name='Speaker Boost Volume' 0"
+		cset "name='AIF1DAC1 EQ Switch' 0"
+	]
+
+	Value {
+		PlaybackVolume "Speaker Volume"
+		PlaybackSwitch "SPK Switch"
+		PlaybackChannels 2
+		PlaybackPCM "hw:${CardId}"
+	}
+}
+
+SectionDevice."MainInternalMicrophone" {
+	Comment "Main Internal Microphone"
+
+	EnableSequence [
+		cset "name='Main Mic Switch' 1"
+		cset "name='IN2L Volume' 26"
+		cset "name='MIXINL IN2L Switch' 1"
+		cset "name='MIXINL IN2L Volume' 0"
+		cset "name='AIF1ADCL Source' 0"
+		cset "name='AIF1ADC1 HPF Mode' 0"
+		cset "name='AIF1ADC1 HPF Switch' 1"
+		cset "name='AIF1ADC1 Volume' 96"
+	]
+
+	DisableSequence [
+		cset "name='Main Mic Switch' 0"
+		cset "name='MIXINL IN2L Switch' 0"
+		cset "name='MIXINL IN2L Volume' 0"
+		cset "name='IN2L Volume' 4"
+	]
+
+	Value {
+		CapturePCM "hw:${CardId}"
+		CaptureChannels 2
+		CaptureVolume "IN2L Volume"
+	}
+}