Add fw.py

fw.py

@@ -0,0 +1,58 @@
+import sys, binascii
+from datetime import datetime
+
+with open(sys.argv[1], 'rb') as f:
+    data = f.read()
+
+data_hex = data.hex()
+date = data_hex[0x18*2:0x18*2+10] # BCD encoded
+try:
+    date_dt = datetime.strptime(date, '%M%H%d%m%y')
+    date_str = date_dt.strftime("%Y-%m-%d %H:%M")
+except ValueError:
+    date_str = date
+
+console_type = {
+    'ff': 'Nintendo DS',
+    '20': 'Nintendo DS Lite',
+    '43': 'iQue DS',
+    '63': 'iQue DS Lite',
+    '35': 'Nintendo DS Lite (Korea)',
+    '00': 'IS-NITRO-EMULATOR / Nintendo DS (Prototype)',
+    '01': 'Nintendo Zone Box',
+    'a0': 'IS-NITRO-EMULATOR (USG)'
+}
+console = data_hex[0x1D*2:0x1D*2+2]
+try:
+    console_t = console_type[console]
+except KeyError:
+    console_t = 'Unknown'
+
+print(f'Build timestamp: {date_str}')
+print(f'Console: {console_t}')
+
+with open('cleaned.bin', 'wb') as f:
+    f.write(data[:0x2A])
+    f.write(binascii.unhexlify('FF'*0x1D6))
+    f.write(data[0x200:-0x600])
+    f.write(binascii.unhexlify('00'*0x400))
+    user_settings = '05' + '00'*0x6F
+    for i in range(2):
+        if console == '35': # lite korean
+            usr_set = user_settings + f'0{i}00454F' + '0101AF00' + 'FF'*0x86 + 'BC25'
+        elif console == '63': # lite ique
+            usr_set = user_settings + f'0{i}00454F' + '01017E00' + '00'*0x86 + '5494'
+        elif console == '43': # phat ique
+            usr_set = user_settings + f'0{i}00454F' + '01017E00' + 'FF'*0x86 + 'E510'
+        else:
+            usr_set = user_settings + f'0{i}00454F' + 'FF'*0x8C
+        f.write(binascii.unhexlify(usr_set))
+
+print("Cleaned Wi-Fi calibration, Wi-Fi access points, user settings in cleaned.bin")
+
+with open('WifiCalibration.bin', 'wb') as f:
+    f.write(data[0x2A:0x200])
+with open('WifiAccessPoints.bin', 'wb') as f:
+    f.write(data[-0x600:-0x200])
+with open('UserSettings.bin', 'wb') as f:
+    f.write(data[-0x200:])