1 files changed, 114 insertions, 0 deletions
diff --git a/tools/sunxi-setup-amixer.sh b/tools/sunxi-setup-amixer.sh
new file mode 100644
index 0000000..f33ebb7
--- /dev/null
+++ b/tools/sunxi-setup-amixer.sh
@@ -0,0 +1,114 @@
+#!/bin/bash
+
+amixer() {
+    /usr/bin/amixer "$@"
+}
+
+setup_opi_pc2() {
+	for v in unmute cap; do
+		amixer set "Line In" $v
+		amixer set "Mic1" $v
+		amixer set "Mic2" $v
+	done
+
+	for k in "Mic1 Boost" "Line In" "Mic1" "Mic2 Boost" "Mic2"; do
+		amixer set "$k" "86%"
+	done
+}
+
+setup_opi_one() {
+	for v in unmute cap; do
+		amixer set "Line In" $v
+		amixer set "Mic1" $v
+  	done
+
+  	for k in "Mic1 Boost" "Line In" "Mic1"; do
+		amixer set "$k" "86%"
+  	done
+}
+
+setup_opi3lts() {
+	switches=(
+		"Left DAC Mixer ADCL"
+		"Left DAC Mixer I2SDACL"
+		"Left I2S Mixer ADCL"
+		"Left I2S Mixer I2SDACL"
+		"Left Input Mixer LINEINL"
+		"Left Input Mixer MIC1"
+		"Left Input Mixer MIC2"
+		"Left Input Mixer OMixerL"
+		"Left Input Mixer OMixerR"
+		"Left Input Mixer PhoneN"
+		"Left Input Mixer PhonePN"
+		"Left Output Mixer DACL"
+		"Left Output Mixer DACR"
+		"Left Output Mixer LINEINL"
+		"Left Output Mixer MIC1"
+		"Left Output Mixer MIC2"
+		"Left Output Mixer PhoneN"
+		"Left Output Mixer PhonePN"
+		"Right DAC Mixer ADCR"
+		"Right DAC Mixer I2SDACR"
+		"Right I2S Mixer ADCR"
+		"Right I2S Mixer I2SDACR"
+		"Right Input Mixer LINEINR"
+		"Right Input Mixer MIC1"
+		"Right Input Mixer MIC2"
+		"Right Input Mixer OMixerL"
+		"Right Input Mixer OMixerR"
+		"Right Input Mixer PhoneP"
+		"Right Input Mixer PhonePN"
+		"Right Output Mixer DACL"
+		"Right Output Mixer DACR"
+		"Right Output Mixer LINEINR"
+		"Right Output Mixer MIC1"
+		"Right Output Mixer MIC2"
+		"Right Output Mixer PhoneP"
+		"Right Output Mixer PhonePN"
+	)
+	for v in "${switches[@]}"; do
+		value=on
+		case "$v" in
+			*Input*)
+				value=on
+				;;
+			*Output*)
+				value=off
+				;;
+		esac
+		amixer set "$v" $value
+	done
+
+	to_mute=(
+		"I2S Mixer ADC"
+		"I2S Mixer DAC"
+		"ADC Input"
+		"DAC Mixer ADC"
+		"DAC Mxier DAC" # this is not a typo
+	)
+	for v in "${to_mute[@]}"; do
+		amixer set "$v" "0%"
+	done
+
+	amixer set "Master" "100%"
+	amixer set "MIC1 Boost" "100%"
+	amixer set "MIC2 Boost" "100%"
+	amixer set "Line Out Mixer" "86%"
+	amixer set "MIC Out Mixer" "71%"
+}
+
+device="$(tr -d '\0' < /sys/firmware/devicetree/base/model)"
+case "$device" in
+	*"Orange Pi PC 2")
+		setup_opi_pc2
+		;;
+	*"Orange Pi One")
+		setup_opi_one
+		;;
+	*"OrangePi 3 LTS")
+		setup_opi3lts
+		;;
+	*)
+		>&2 echo "error: unidentified device: $device"
+		;;
+esac