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"""Functions that help us generate and use info.json files.
"""
import json
from glob import glob
from pathlib import Path
from milc import cli
from qmk.constants import ARM_PROCESSORS, AVR_PROCESSORS, VUSB_PROCESSORS
from qmk.c_parse import find_layouts
from qmk.keyboard import config_h, rules_mk
from qmk.math import compute
def info_json(keyboard):
"""Generate the info.json data for a specific keyboard.
"""
info_data = {
'keyboard_name': str(keyboard),
'keyboard_folder': str(keyboard),
'layouts': {},
'maintainer': 'qmk',
}
for layout_name, layout_json in _find_all_layouts(keyboard).items():
if not layout_name.startswith('LAYOUT_kc'):
info_data['layouts'][layout_name] = layout_json
info_data = merge_info_jsons(keyboard, info_data)
info_data = _extract_config_h(info_data)
info_data = _extract_rules_mk(info_data)
return info_data
def _extract_config_h(info_data):
"""Pull some keyboard information from existing rules.mk files
"""
config_c = config_h(info_data['keyboard_folder'])
row_pins = config_c.get('MATRIX_ROW_PINS', '').replace('{', '').replace('}', '').strip()
col_pins = config_c.get('MATRIX_COL_PINS', '').replace('{', '').replace('}', '').strip()
direct_pins = config_c.get('DIRECT_PINS', '').replace(' ', '')[1:-1]
info_data['diode_direction'] = config_c.get('DIODE_DIRECTION')
info_data['matrix_size'] = {
'rows': compute(config_c.get('MATRIX_ROWS', '0')),
'cols': compute(config_c.get('MATRIX_COLS', '0')),
}
info_data['matrix_pins'] = {}
if row_pins:
info_data['matrix_pins']['rows'] = row_pins.split(',')
if col_pins:
info_data['matrix_pins']['cols'] = col_pins.split(',')
if direct_pins:
direct_pin_array = []
for row in direct_pins.split('},{'):
if row.startswith('{'):
row = row[1:]
if row.endswith('}'):
row = row[:-1]
direct_pin_array.append([])
for pin in row.split(','):
if pin == 'NO_PIN':
pin = None
direct_pin_array[-1].append(pin)
info_data['matrix_pins']['direct'] = direct_pin_array
info_data['usb'] = {
'vid': config_c.get('VENDOR_ID'),
'pid': config_c.get('PRODUCT_ID'),
'device_ver': config_c.get('DEVICE_VER'),
'manufacturer': config_c.get('MANUFACTURER'),
'product': config_c.get('PRODUCT'),
'description': config_c.get('DESCRIPTION'),
}
return info_data
def _extract_rules_mk(info_data):
"""Pull some keyboard information from existing rules.mk files
"""
rules = rules_mk(info_data['keyboard_folder'])
mcu = rules.get('MCU')
if mcu in ARM_PROCESSORS:
arm_processor_rules(info_data, rules)
elif mcu in AVR_PROCESSORS:
avr_processor_rules(info_data, rules)
else:
cli.log.warning("%s: Unknown MCU: %s" % (info_data['keyboard_folder'], mcu))
unknown_processor_rules(info_data, rules)
return info_data
def _find_all_layouts(keyboard):
"""Looks for layout macros associated with this keyboard.
"""
layouts = {}
rules = rules_mk(keyboard)
keyboard_path = Path(rules.get('DEFAULT_FOLDER', keyboard))
# Pull in all layouts defined in the standard files
current_path = Path('keyboards/')
for directory in keyboard_path.parts:
current_path = current_path / directory
keyboard_h = '%s.h' % (directory,)
keyboard_h_path = current_path / keyboard_h
if keyboard_h_path.exists():
layouts.update(find_layouts(keyboard_h_path))
if not layouts:
# If we didn't find any layouts above we widen our search. This is error
# prone which is why we want to encourage people to follow the standard above.
cli.log.warning('%s: Falling back to searching for KEYMAP/LAYOUT macros.' % (keyboard))
for file in glob('keyboards/%s/*.h' % keyboard):
if file.endswith('.h'):
these_layouts = find_layouts(file)
if these_layouts:
layouts.update(these_layouts)
if 'LAYOUTS' in rules:
# Match these up against the supplied layouts
supported_layouts = rules['LAYOUTS'].strip().split()
for layout_name in sorted(layouts):
if not layout_name.startswith('LAYOUT_'):
continue
layout_name = layout_name[7:]
if layout_name in supported_layouts:
supported_layouts.remove(layout_name)
if supported_layouts:
cli.log.error('%s: Missing LAYOUT() macro for %s' % (keyboard, ', '.join(supported_layouts)))
return layouts
def arm_processor_rules(info_data, rules):
"""Setup the default info for an ARM board.
"""
info_data['processor_type'] = 'arm'
info_data['bootloader'] = rules['BOOTLOADER'] if 'BOOTLOADER' in rules else 'unknown'
info_data['processor'] = rules['MCU'] if 'MCU' in rules else 'unknown'
info_data['protocol'] = 'ChibiOS'
if info_data['bootloader'] == 'unknown':
if 'STM32' in info_data['processor']:
info_data['bootloader'] = 'stm32-dfu'
elif info_data.get('manufacturer') == 'Input Club':
info_data['bootloader'] = 'kiibohd-dfu'
if 'STM32' in info_data['processor']:
info_data['platform'] = 'STM32'
elif 'MCU_SERIES' in rules:
info_data['platform'] = rules['MCU_SERIES']
elif 'ARM_ATSAM' in rules:
info_data['platform'] = 'ARM_ATSAM'
return info_data
def avr_processor_rules(info_data, rules):
"""Setup the default info for an AVR board.
"""
info_data['processor_type'] = 'avr'
info_data['bootloader'] = rules['BOOTLOADER'] if 'BOOTLOADER' in rules else 'atmel-dfu'
info_data['platform'] = rules['ARCH'] if 'ARCH' in rules else 'unknown'
info_data['processor'] = rules['MCU'] if 'MCU' in rules else 'unknown'
info_data['protocol'] = 'V-USB' if rules.get('MCU') in VUSB_PROCESSORS else 'LUFA'
# FIXME(fauxpark/anyone): Eventually we should detect the protocol by looking at PROTOCOL inherited from mcu_selection.mk:
# info_data['protocol'] = 'V-USB' if rules.get('PROTOCOL') == 'VUSB' else 'LUFA'
return info_data
def unknown_processor_rules(info_data, rules):
"""Setup the default keyboard info for unknown boards.
"""
info_data['bootloader'] = 'unknown'
info_data['platform'] = 'unknown'
info_data['processor'] = 'unknown'
info_data['processor_type'] = 'unknown'
info_data['protocol'] = 'unknown'
return info_data
def merge_info_jsons(keyboard, info_data):
"""Return a merged copy of all the info.json files for a keyboard.
"""
for info_file in find_info_json(keyboard):
# Load and validate the JSON data
with info_file.open('r') as info_fd:
new_info_data = json.load(info_fd)
if not isinstance(new_info_data, dict):
cli.log.error("Invalid file %s, root object should be a dictionary.", str(info_file))
continue
# Copy whitelisted keys into `info_data`
for key in ('keyboard_name', 'manufacturer', 'identifier', 'url', 'maintainer', 'processor', 'bootloader', 'width', 'height'):
if key in new_info_data:
info_data[key] = new_info_data[key]
# Merge the layouts in
if 'layouts' in new_info_data:
for layout_name, json_layout in new_info_data['layouts'].items():
# Only pull in layouts we have a macro for
if layout_name in info_data['layouts']:
if info_data['layouts'][layout_name]['key_count'] != len(json_layout['layout']):
cli.log.error('%s: %s: Number of elements in info.json does not match! info.json:%s != %s:%s', info_data['keyboard_folder'], layout_name, len(json_layout['layout']), layout_name, len(info_data['layouts'][layout_name]['layout']))
else:
for i, key in enumerate(info_data['layouts'][layout_name]['layout']):
key.update(json_layout['layout'][i])
return info_data
def find_info_json(keyboard):
"""Finds all the info.json files associated with a keyboard.
"""
# Find the most specific first
base_path = Path('keyboards')
keyboard_path = base_path / keyboard
keyboard_parent = keyboard_path.parent
info_jsons = [keyboard_path / 'info.json']
# Add DEFAULT_FOLDER before parents, if present
rules = rules_mk(keyboard)
if 'DEFAULT_FOLDER' in rules:
info_jsons.append(Path(rules['DEFAULT_FOLDER']) / 'info.json')
# Add in parent folders for least specific
for _ in range(5):
info_jsons.append(keyboard_parent / 'info.json')
if keyboard_parent.parent == base_path:
break
keyboard_parent = keyboard_parent.parent
# Return a list of the info.json files that actually exist
return [info_json for info_json in info_jsons if info_json.exists()]
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