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#!/usr/bin/env python3
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2019, Google Inc.
#
# Author: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
#
# Generate control definitions from YAML
import argparse
import jinja2
import os
import sys
import yaml
from controls import Control
def snake_case(s):
return ''.join([c.isupper() and ('_' + c) or c for c in s]).strip('_')
def format_description(description):
description = description.strip('\n').split('\n')
for i in range(1, len(description)):
line = description[i]
description[i] = (line and ' * ' or ' *') + line
return '\n'.join(description)
def extend_control(ctrl, id, ranges):
ctrl.id = ranges[ctrl.vendor] + id + 1
if ctrl.vendor != 'libcamera':
ctrl.namespace = f'{ctrl.vendor}::'
else:
ctrl.namespace = ''
return ctrl
def main(argv):
# Parse command line arguments
parser = argparse.ArgumentParser()
parser.add_argument('--mode', '-m', type=str, required=True, choices=['controls', 'properties'],
help='Mode of operation')
parser.add_argument('--output', '-o', metavar='file', type=str,
help='Output file name. Defaults to standard output if not specified.')
parser.add_argument('--ranges', '-r', type=str, required=True,
help='Control id range reservation file.')
parser.add_argument('--template', '-t', dest='template', type=str, required=True,
help='Template file name.')
parser.add_argument('input', type=str, nargs='+',
help='Input file name.')
args = parser.parse_args(argv[1:])
ranges = {}
with open(args.ranges, 'rb') as f:
data = open(args.ranges, 'rb').read()
ranges = yaml.safe_load(data)['ranges']
controls = {}
for input in args.input:
data = yaml.safe_load(open(input, 'rb').read())
vendor = data['vendor']
if vendor not in ranges.keys():
raise RuntimeError(f'Control id range is not defined for vendor {vendor}')
ctrls = controls.setdefault(vendor, [])
for i, ctrl in enumerate(data['controls']):
ctrl = Control(*ctrl.popitem(), vendor, args.mode)
ctrls.append(extend_control(ctrl, i, ranges))
# Sort the vendors by range numerical value
controls = [[vendor, ctrls] for vendor, ctrls in controls.items()]
controls.sort(key=lambda item: ranges[item[0]])
filename = {
'controls': 'control_ids',
'properties': 'property_ids',
}[args.mode]
data = {
'filename': filename,
'mode': args.mode,
'controls': controls,
}
env = jinja2.Environment()
env.filters['format_description'] = format_description
env.filters['snake_case'] = snake_case
template = env.from_string(open(args.template, 'r', encoding='utf-8').read())
string = template.render(data)
if args.output:
output = open(args.output, 'w', encoding='utf-8')
output.write(string)
output.close()
else:
sys.stdout.write(string)
return 0
if __name__ == '__main__':
sys.exit(main(sys.argv))
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