add cpu power mode

power/apply_cpu_mode_from_db.py

@@ -0,0 +1,71 @@
+#!/usr/bin/env python3
+"""
+Apply CPU Power Mode from Database at Boot
+
+This script is called by systemd at boot to apply the CPU power mode
+stored in the database (cpu_power_mode config parameter).
+
+Usage:
+  /usr/bin/python3 /var/www/nebuleair_pro_4g/power/apply_cpu_mode_from_db.py
+"""
+
+import sqlite3
+import sys
+import subprocess
+
+DB_PATH = "/var/www/nebuleair_pro_4g/sqlite/sensors.db"
+SET_MODE_SCRIPT = "/var/www/nebuleair_pro_4g/power/set_cpu_mode.py"
+
+def get_cpu_mode_from_db():
+    """Read cpu_power_mode from database"""
+    try:
+        conn = sqlite3.connect(DB_PATH)
+        cursor = conn.cursor()
+        cursor.execute("SELECT value FROM config_table WHERE key = 'cpu_power_mode'")
+        result = cursor.fetchone()
+        conn.close()
+        return result[0] if result else None
+    except sqlite3.Error as e:
+        print(f"Database error: {e}", file=sys.stderr)
+        return None
+
+def main():
+    """Main function"""
+    print("=== Applying CPU Power Mode from Database ===")
+
+    # Get mode from database
+    mode = get_cpu_mode_from_db()
+
+    if mode is None:
+        print("No cpu_power_mode found in database, using default: normal")
+        mode = "normal"
+
+    print(f"CPU power mode from database: {mode}")
+
+    # Call set_cpu_mode.py to apply the mode
+    try:
+        result = subprocess.run(
+            ["/usr/bin/python3", SET_MODE_SCRIPT, mode],
+            capture_output=True,
+            text=True,
+            timeout=30
+        )
+
+        if result.returncode == 0:
+            print(f"Successfully applied CPU power mode: {mode}")
+            print(result.stdout)
+            return 0
+        else:
+            print(f"Failed to apply CPU power mode: {mode}", file=sys.stderr)
+            print(result.stderr, file=sys.stderr)
+            return 1
+
+    except subprocess.TimeoutExpired:
+        print("Timeout while applying CPU power mode", file=sys.stderr)
+        return 1
+    except Exception as e:
+        print(f"Error: {e}", file=sys.stderr)
+        return 1
+
+if __name__ == "__main__":
+    sys.exit(main())