1 files changed, 41 insertions, 0 deletions
diff --git a/bin/detect-mcu.sh b/bin/detect-mcu.sh
new file mode 100755
index 0000000..fa3a926
--- /dev/null
+++ b/bin/detect-mcu.sh
@@ -0,0 +1,41 @@
+#!/bin/sh
+# Anduril / FSM MCU type detection script
+# Copyright (C) 2014-2023 Selene ToyKeeper
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+if [ -z "$1" ]; then
+  echo "Usage: detect-mcu.sh FILE"
+  echo "or: eval $(detect-mcu.sh FILE)"
+  echo "Example: detect-mcu.sh hw/hank/emisar-d4/anduril.h"
+  echo "Figures out which MCU a build uses, and sets env vars for it"
+  exit
+fi
+
+TARGET=$1
+while [ -n "$TARGET" ]; do
+  #echo "... $TARGET"
+  if [ -f "$TARGET" ]; then  # use the dir/$UI.h file
+    ATTINY=$(grep 'ATTINY:' $TARGET | awk '{ print $3 }')
+    if [ -n "$ATTINY" ]; then
+      echo "export MCUNAME=attiny${ATTINY}"
+      echo "export MCU=0x${ATTINY}"
+      echo "export ATTINY=${ATTINY}"
+      echo "export MCUFLAGS=\"-DMCUNAME=attiny${ATTINY} -DMCU=0x${ATTINY} -DATTINY=${ATTINY}\""
+      exit
+    fi
+  else  # use the dir/arch file
+    if [ -f "${TARGET}/arch" ]; then
+      MCU=$(head -1 "${TARGET}/arch")
+      if [ -n "$MCU" ]; then
+        NUM=$( echo "$MCU" | sed 's/^avr//; s/^attiny//;' )
+        echo "export MCUNAME=${MCU}"
+        echo "export MCU=0x${NUM}"
+        echo "export ATTINY=${NUM}"
+        echo "export MCUFLAGS=\"-DMCUNAME=${MCU} -DMCU=0x${NUM} -DATTINY=${NUM}\""
+        exit
+      fi
+    fi
+  fi
+  TARGET=$(dirname $TARGET)
+done
+