2 # SPDX-License-Identifier: GPL-2.0-only
10 def parse_of_declare_macros(data, include_driver_macros=True):
11 """ Find all compatible strings in OF_DECLARE() style macros """
13 # CPU_METHOD_OF_DECLARE does not have a compatible string
14 if include_driver_macros:
15 re_macros = r'(?<!CPU_METHOD_)(IRQCHIP|OF)_(DECLARE|MATCH)(_DRIVER)?\(.*?\)'
17 re_macros = r'(?<!CPU_METHOD_)(IRQCHIP|OF)_(DECLARE|MATCH)\(.*?\)'
18 for m in re.finditer(re_macros, data):
20 compat = re.search(r'"(.*?)"', m[0])[1]
22 # Fails on compatible strings in #define, so just skip
24 compat_list += [compat]
29 def parse_of_device_id(data, match_table_list=None):
30 """ Find all compatible strings in of_device_id structs """
32 for m in re.finditer(r'of_device_id(\s+\S+)?\s+(\S+)\[\](\s+\S+)?\s*=\s*({.*?);', data):
33 if match_table_list is not None and m[2] not in match_table_list:
35 compat_list += re.findall(r'\.compatible\s+=\s+"(\S+)"', m[4])
40 def parse_of_match_table(data):
41 """ Find all driver's of_match_table """
43 for m in re.finditer(r'\.of_match_table\s+=\s+(of_match_ptr\()?([a-zA-Z0-9_-]+)', data):
44 match_table_list.append(m[2])
46 return match_table_list
49 def parse_compatibles(file, compat_ignore_list):
50 with open(file, 'r', encoding='utf-8') as f:
51 data = f.read().replace('\n', '')
53 if compat_ignore_list is not None:
54 # For a compatible in the DT to be matched to a driver it needs to show
55 # up in a driver's of_match_table
56 match_table_list = parse_of_match_table(data)
57 compat_list = parse_of_device_id(data, match_table_list)
59 compat_list = [compat for compat in compat_list if compat not in compat_ignore_list]
61 compat_list = parse_of_declare_macros(data)
62 compat_list += parse_of_device_id(data)
66 def parse_compatibles_to_ignore(file):
67 with open(file, 'r', encoding='utf-8') as f:
68 data = f.read().replace('\n', '')
70 # Compatibles that show up in OF_DECLARE macros can't be expected to
71 # match a driver, except for the _DRIVER ones.
72 return parse_of_declare_macros(data, include_driver_macros=False)
75 def print_compat(filename, compatibles):
79 compat_str = ' '.join(compatibles)
80 print(filename + ": compatible(s): " + compat_str)
82 print(*compatibles, sep='\n')
84 def glob_without_symlinks(root, glob):
85 for path, dirs, files in os.walk(root):
86 # Ignore hidden directories
88 if fnmatch.fnmatch(d, ".*"):
91 if fnmatch.fnmatch(f, glob):
92 yield os.path.join(path, f)
94 def files_to_parse(path_args):
97 for filename in glob_without_symlinks(f, "*.c"):
102 show_filename = False
104 if __name__ == "__main__":
105 ap = argparse.ArgumentParser()
106 ap.add_argument("cfile", type=str, nargs='*', help="C source files or directories to parse")
107 ap.add_argument('-H', '--with-filename', help="Print filename with compatibles", action="store_true")
108 ap.add_argument('-d', '--driver-match', help="Only print compatibles that should match to a driver", action="store_true")
109 args = ap.parse_args()
111 show_filename = args.with_filename
112 compat_ignore_list = None
114 if args.driver_match:
115 compat_ignore_list = []
116 for f in files_to_parse(args.cfile):
117 compat_ignore_list.extend(parse_compatibles_to_ignore(f))
119 for f in files_to_parse(args.cfile):
120 compat_list = parse_compatibles(f, compat_ignore_list)
121 print_compat(f, compat_list)