2 # SPDX-License-Identifier: GPL-2.0+
5 Expo utility - used for testing of expo features
7 Copyright 2023 Google LLC
18 #from u_boot_pylib import cros_subprocess
19 from u_boot_pylib import tools
24 RE_ENUM = re.compile(r'(\S*)(\s*= (\d))?,')
26 # Parse #define <name> "string"
27 RE_DEF = re.compile(r'#define (\S*)\s*"(.*)"')
30 """Figure out the value of the enums in a C file
33 fname (str): Filename to parse
40 Value of #define, if string
42 vals = collections.OrderedDict()
43 with open(fname, 'r', encoding='utf-8') as inf:
46 for line in inf.readlines():
51 if in_enum and line == '};':
55 if not line or line.startswith('/*'):
57 m_enum = RE_ENUM.match(line)
59 cur_id = int(m_enum.group(3))
60 vals[m_enum.group(1)] = cur_id
63 m_def = RE_DEF.match(line)
65 vals[m_def.group(1)] = tools.to_bytes(m_def.group(2))
71 """Run the expo program"""
72 fname = args.enum_fname or args.layout
75 print(f"Warning: No enum ID values found in file '{fname}'")
77 indata = tools.read_file(args.layout)
81 for name, val in ids.items():
82 if isinstance(val, int):
85 outval = b'"%s"' % val
86 find_str = r'\b%s\b' % name
87 indata = re.sub(tools.to_bytes(find_str), outval, indata)
90 data = outf.getvalue()
92 with open('/tmp/asc', 'wb') as outf:
94 proc = subprocess.run('dtc', input=data, capture_output=True)
97 print(f"Devicetree compiler error:\n{proc.stderr.decode('utf-8')}")
99 tools.write_file(args.outfile, edtb)
103 def parse_args(argv):
104 """Parse the command-line arguments
107 argv (list of str): List of string arguments
110 tuple: (options, args) with the command-line options and arugments.
111 options provides access to the options (e.g. option.debug)
112 args is a list of string arguments
114 parser = argparse.ArgumentParser()
115 parser.add_argument('-D', '--debug', action='store_true',
116 help='Enable full debug traceback')
117 parser.add_argument('-e', '--enum-fname', type=str,
118 help='.dts or C file containing enum declaration for expo items')
119 parser.add_argument('-l', '--layout', type=str, required=True,
120 help='Devicetree file source .dts for expo layout (and perhaps enums)')
121 parser.add_argument('-o', '--outfile', type=str, required=True,
122 help='Filename to write expo layout dtb')
124 return parser.parse_args(argv)
127 """Start the expo program"""
128 args = parse_args(sys.argv[1:])
131 sys.tracebacklimit = 0
133 ret_code = run_expo(args)
137 if __name__ == "__main__":