src/shared/ethtool-link-mode.py

   1 #!/usr/bin/env python3
   2 # SPDX-License-Identifier: LGPL-2.1-or-later
   3
   4 import re
   5 import shlex
   6 import subprocess
   7 import sys
   8
   9 OVERRIDES = {
  10     'autoneg' : 'autonegotiation',
  11 }
  12
  13 mode, cpp, header = sys.argv[1:]
  14 xml = mode == '--xml'
  15
  16 command = [*shlex.split(cpp), '-include', header, '-']
  17 out = subprocess.check_output(command, stdin=subprocess.DEVNULL, universal_newlines=True)
  18
  19 lines = iter(out.splitlines())
  20 for line in lines:
  21     if line.startswith('enum ethtool_link_mode_bit_indices {'):
  22         break
  23
  24 entries = []
  25 for line in lines:
  26     if line.startswith('}'):
  27         break
  28     # ETHTOOL_LINK_MODE_10baseT_Half_BIT        = 0,
  29     m = re.match(r'^\s*(ETHTOOL_LINK_MODE_((\d*).*)_BIT)\s*=\s*(\d+),', line)
  30     if not m:
  31         continue
  32     enum, name, speed, value = m.groups()
  33
  34     name = name.lower().replace('_', '-')
  35     name = OVERRIDES.get(name, name)
  36
  37     duplex = name.split('-')[-1].lower()
  38     if duplex not in {'half', 'full'}:
  39         duplex = ''
  40
  41     entries += [(enum, name, speed, value, duplex)]
  42
  43 if xml:
  44     print('              <tbody>')
  45
  46     entries.sort(key=lambda entry: (int(entry[2]) if entry[2] else 1e20, entry[4], entry[1], entry[3]))
  47
  48 for enum, name, speed, value, duplex in entries:
  49     if xml:
  50         print(f'''\
  51                 <row><entry><option>{name}</option></entry>
  52                 <entry>{speed}</entry><entry>{duplex}</entry></row>
  53         ''')
  54     else:
  55         enum = f'[{enum}]'
  56         print(f'        {enum:50} = "{name}",')
  57
  58 if xml:
  59     print('              </tbody>')
  60
  61 assert len(entries) >= 99