2.15.26

2026-08-11 13:38:27 +08:00
parent abbf30d7c0
commit 6556cfcf74
39 changed files with 678 additions and 58 deletions
@@ -0,0 +1,47 @@
+#!/bin/sh
+
+# The application supplies its own PID. Refuse broad or malformed targets.
+TARGET_PID="$1"
+LASER_DEVICE="${2:-/dev/ttyS1}"
+LASER_BAUD="${3:-9600}"
+
+turn_off_laser() {
+    if [ ! -c "$LASER_DEVICE" ]; then
+        echo "[CHARGE] laser serial device not found: $LASER_DEVICE" >&2
+        return 1
+    fi
+
+    stty -F "$LASER_DEVICE" "$LASER_BAUD" raw -echo 2>/dev/null || return 1
+    printf '\252\000\001\276\000\001\000\000\300' > "$LASER_DEVICE"
+}
+
+case "$TARGET_PID" in
+    ''|*[!0-9]*)
+        echo "[CHARGE] invalid application pid: $TARGET_PID" >&2
+        exit 2
+        ;;
+esac
+
+if [ "$TARGET_PID" -le 1 ]; then
+    echo "[CHARGE] refusing to terminate pid: $TARGET_PID" >&2
+    exit 2
+fi
+
+# First request laser-off while the application still owns the initialized UART.
+turn_off_laser || true
+
+kill -TERM "$TARGET_PID" 2>/dev/null || true
+
+# Wait up to two seconds for a graceful exit, then force termination.
+WAIT_COUNT=0
+while kill -0 "$TARGET_PID" 2>/dev/null && [ "$WAIT_COUNT" -lt 20 ]; do
+    sleep 0.1
+    WAIT_COUNT=$((WAIT_COUNT + 1))
+done
+if kill -0 "$TARGET_PID" 2>/dev/null; then
+    kill -KILL "$TARGET_PID" 2>/dev/null || true
+    sleep 0.1
+fi
+
+# Send laser-off again after the application releases the UART.
+turn_off_laser || true