From cabffca5108d9c1b32df117d1450930e698e0d1f Mon Sep 17 00:00:00 2001
From: aiminick <aiminick@openfans.org>
Date: Sat, 3 Apr 2021 02:01:25 +0800
Subject: [PATCH] Create get_throttled.sh

---
 scripts/get_throttled.sh | 69 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 scripts/get_throttled.sh

diff --git a/scripts/get_throttled.sh b/scripts/get_throttled.sh
new file mode 100644
index 0000000..a7e3a1e
--- /dev/null
+++ b/scripts/get_throttled.sh
@@ -0,0 +1,69 @@
+#!/bin/bash
+
+ISSUES_MAP=( \
+  [0]="Under-voltage detected" \
+  [1]="Arm frequency capped" \
+  [2]="Currently throttled"
+  [3]="Soft temperature limit active" \
+  [16]="Under-voltage has occurred" \
+  [17]="Arm frequency capping has occurred" \
+  [18]="Throttling has occurred" \
+  [19]="Soft temperature limit has occurred")
+
+HEX_BIN_MAP=( \
+  ["0"]="0000" \
+  ["1"]="0001" \
+  ["2"]="0010" \
+  ["3"]="0011" \
+  ["4"]="0100" \
+  ["5"]="0101" \
+  ["6"]="0110" \
+  ["7"]="0111" \
+  ["8"]="1000" \
+  ["9"]="1001" \
+  ["A"]="1010" \
+  ["B"]="1011" \
+  ["C"]="1100" \
+  ["D"]="1101" \
+  ["E"]="1110" \
+  ["F"]="1111" \
+)
+
+THROTTLED_OUTPUT=$(vcgencmd get_throttled)
+IFS='x'
+read -a strarr <<< "$THROTTLED_OUTPUT"
+THROTTLED_CODE_HEX=${strarr[1]}
+
+# Display current issues
+echo "Current issues:"
+CURRENT_HEX=${THROTTLED_CODE_HEX:4:1}
+CURRENT_BIN=${HEX_BIN_MAP[$CURRENT_HEX]}
+if [ $CURRENT_HEX = "0" ]; then
+  echo "No throttling issues detected."
+else
+  bit_n=0
+  for (( i=${#CURRENT_BIN}-1; i>=0; i--)); do
+    if [ "${CURRENT_BIN:$i:1}" = "1" ]; then
+      echo "~ ${ISSUES_MAP[$bit_n]}"
+      bit_n=$((bit_n+1))
+    fi
+  done
+fi
+
+echo ""
+
+# Display past issues
+echo "Previously detected issues:"
+PAST_HEX=${THROTTLED_CODE_HEX:0:1}
+PAST_BIN=${HEX_BIN_MAP[$PAST_HEX]}
+if [ $PAST_HEX = "0" ]; then
+  echo "No throttling issues detected."
+else
+  bit_n=16
+  for (( i=${#PAST_BIN}-1; i>=0; i--)); do
+    if [ "${PAST_BIN:$i:1}" = "1" ]; then
+      echo "~ ${ISSUES_MAP[$bit_n]}"
+      bit_n=$((bit_n+1))
+    fi
+  done
+fi