1 files changed, 61 insertions, 0 deletions
diff --git a/src/shared/ethtool-link-mode.py b/src/shared/ethtool-link-mode.py
new file mode 100644
index 0000000..aac1576
--- /dev/null
+++ b/src/shared/ethtool-link-mode.py
@@ -0,0 +1,61 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
+import re
+import shlex
+import subprocess
+import sys
+
+OVERRIDES = {
+    'autoneg' : 'autonegotiation',
+}
+
+mode, cpp, header = sys.argv[1:]
+xml = mode == '--xml'
+
+command = [*shlex.split(cpp), '-include', header, '-']
+out = subprocess.check_output(command, stdin=subprocess.DEVNULL, universal_newlines=True)
+
+lines = iter(out.splitlines())
+for line in lines:
+    if line.startswith('enum ethtool_link_mode_bit_indices {'):
+        break
+
+entries = []
+for line in lines:
+    if line.startswith('}'):
+        break
+    # ETHTOOL_LINK_MODE_10baseT_Half_BIT	= 0,
+    m = re.match(r'^\s*(ETHTOOL_LINK_MODE_((\d*).*)_BIT)\s*=\s*(\d+),', line)
+    if not m:
+        continue
+    enum, name, speed, value = m.groups()
+
+    name = name.lower().replace('_', '-')
+    name = OVERRIDES.get(name, name)
+
+    duplex = name.split('-')[-1].lower()
+    if duplex not in {'half', 'full'}:
+        duplex = ''
+
+    entries += [(enum, name, speed, value, duplex)]
+
+if xml:
+    print('              <tbody>')
+
+    entries.sort(key=lambda entry: (int(entry[2]) if entry[2] else 1e20, entry[4], entry[1], entry[3]))
+
+for enum, name, speed, value, duplex in entries:
+    if xml:
+        print(f'''\
+                <row><entry><option>{name}</option></entry>
+                <entry>{speed}</entry><entry>{duplex}</entry></row>
+        ''')
+    else:
+        enum = f'[{enum}]'
+        print(f'        {enum:50} = "{name}",')
+
+if xml:
+    print('              </tbody>')
+
+assert len(entries) >= 99