From f3fcef5114b6f22dd01846f829cc87e7438051dc Mon Sep 17 00:00:00 2001
From: Evgeny Zinoviev <me@ch1p.io>
Date: Wed, 11 Jan 2023 00:37:48 +0300
Subject: doc: document recording audio on allwinner h6 boards

---
 doc/arecord_orange_pi.md |  9 ++++++
 tools/h6-setup-amixer.sh | 74 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 83 insertions(+)
 create mode 100644 tools/h6-setup-amixer.sh

diff --git a/doc/arecord_orange_pi.md b/doc/arecord_orange_pi.md
index 923d526..da32a11 100644
--- a/doc/arecord_orange_pi.md
+++ b/doc/arecord_orange_pi.md
@@ -28,4 +28,13 @@ done
 for k in "Mic1 Boost" "Line In" "Mic1" "Mic2 Boost" "Mic2"; do
   /usr/bin/amixer set "$k" "86%"
 done
+```
+
+
+## Orange Pi 3 LTS (Allwinner H6)
+
+See [script](../tools/h6-setup-amixer.sh).
+
+```
+arecord -v -f S32 -r 44100 test.wav
 ```
\ No newline at end of file
diff --git a/tools/h6-setup-amixer.sh b/tools/h6-setup-amixer.sh
new file mode 100644
index 0000000..ad789ea
--- /dev/null
+++ b/tools/h6-setup-amixer.sh
@@ -0,0 +1,74 @@
+#!/bin/bash
+
+amixer() {
+    /usr/bin/amixer "$@"
+}
+
+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" $value
+done
+
+amixer set "Master" "100%"
+amixer set "MIC1 Boost" "100%"
+amixer set "MIC2 Boost" "100%"
+amixer set "Line Out Mixer" "86%"
+amixer set "MIC Out Mixer" "71%"
+
+MUTE=(
+    "I2S Mixer ADC"
+    "I2S Mixer DAC"
+    "ADC Input"
+    "DAC Mixer ADC"
+    "DAC Mxier DAC" # this is not a typo
+)
+for v in "${MUTE[@]}"; do
+    amixer set "$v" "0%"
+done
\ No newline at end of file
-- 
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