mirror of
https://github.com/bluekitchen/btstack.git
synced 2025-01-01 09:08:06 +00:00
636 lines
18 KiB
Python
Executable File
636 lines
18 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# BLE GATT configuration generator for use with BTstack, v0.1
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# Copyright 2011 Matthias Ringwald
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#
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# Format of input file:
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# PRIMARY_SERVICE, SERVICE_UUID
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# CHARACTERISTIC, ATTRIBUTE_TYPE_UUID, [READ | WRITE | DYNAMIC], VALUE
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import re
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import io
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import csv
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import string
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import codecs
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header = '''
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// {0} generated from {1} for BTstack
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// binary representation
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// attribute size in bytes (16), flags(16), handle (16), uuid (16/128), value(...)
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#include <stdint.h>
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const uint8_t profile_data[] =
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'''
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usage = '''
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Usage: ./compile-gatt.py profile.gatt profile.h
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'''
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import re
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import sys
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print('''
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BLE configuration generator for use with BTstack, v0.1
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Copyright 2011 Matthias Ringwald
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''')
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assigned_uuids = {
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'GAP_SERVICE' : 0x1800,
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'GATT_SERVICE' : 0x1801,
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'GAP_DEVICE_NAME' : 0x2a00,
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'GAP_APPEARANCE' : 0x2a01,
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'GAP_PERIPHERAL_PRIVACY_FLAG' : 0x2A02,
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'GAP_RECONNECTION_ADDRESS' : 0x2A03,
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'GAP_PERIPHERAL_PREFERRED_CONNECTION_PARAMETERS' : 0x2A04,
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'GATT_SERVICE_CHANGED' : 0x2a05,
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}
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property_flags = {
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'BROADCAST' : 0x01,
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'READ' : 0x02,
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'WRITE_WITHOUT_RESPONSE' : 0x04,
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'WRITE' : 0x08,
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'NOTIFY': 0x10,
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'INDICATE' : 0x20,
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'AUTHENTICATED_SIGNED_WRITE' : 0x40,
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'EXTENDED_PROPERTIES' : 0x80,
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# custom BTstack extension
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'DYNAMIC': 0x100,
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'LONG_UUID': 0x200,
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'AUTHENTICATION_REQUIRED': 0x400,
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'AUTHORIZATION_REQUIRED': 0x800,
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'ENCRYPTION_KEY_SIZE_7': 0x6000,
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'ENCRYPTION_KEY_SIZE_8': 0x7000,
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'ENCRYPTION_KEY_SIZE_9': 0x8000,
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'ENCRYPTION_KEY_SIZE_10': 0x9000,
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'ENCRYPTION_KEY_SIZE_11': 0xa000,
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'ENCRYPTION_KEY_SIZE_12': 0xb000,
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'ENCRYPTION_KEY_SIZE_13': 0xc000,
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'ENCRYPTION_KEY_SIZE_14': 0xd000,
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'ENCRYPTION_KEY_SIZE_15': 0xe000,
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'ENCRYPTION_KEY_SIZE_16': 0xf000,
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# only used by gatt compiler >= 0xffff
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# Extended Properties
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'RELIABLE_WRITE': 0x10000,
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}
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services = dict()
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characteristic_indices = dict()
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presentation_formats = dict()
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current_service_uuid_string = ""
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current_service_start_handle = 0
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current_characteristic_uuid_string = ""
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defines = []
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handle = 1
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total_size = 0
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def keyForUUID(uuid):
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keyUUID = ""
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for i in uuid:
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keyUUID += "%02x" % i
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return keyUUID
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def c_string_for_uuid(uuid):
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return uuid.replace('-', '_')
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def twoByteLEFor(value):
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return [ (value & 0xff), (value >> 8)]
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def is_128bit_uuid(text):
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if re.match("[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{12}", text):
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return True
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return False
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def parseUUID128(uuid):
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parts = re.match("([0-9A-Fa-f]{4})([0-9A-Fa-f]{4})-([0-9A-Fa-f]{4})-([0-9A-Fa-f]{4})-([0-9A-Fa-f]{4})-([0-9A-Fa-f]{4})([0-9A-Fa-f]{4})([0-9A-Fa-f]{4})", uuid)
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uuid_bytes = []
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for i in range(8, 0, -1):
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uuid_bytes = uuid_bytes + twoByteLEFor(int(parts.group(i),16))
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return uuid_bytes
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def parseUUID(uuid):
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if uuid in assigned_uuids:
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return twoByteLEFor(assigned_uuids[uuid])
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if is_128bit_uuid(uuid):
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return parseUUID128(uuid)
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uuidInt = int(uuid, 16)
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return twoByteLEFor(uuidInt)
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def parseProperties(properties):
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value = 0
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parts = properties.split("|")
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for property in parts:
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property = property.strip()
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if property in property_flags:
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value |= property_flags[property]
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else:
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print("WARNING: property %s undefined" % (property))
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return value
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def write_8(fout, value):
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fout.write( "0x%02x, " % (value & 0xff))
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def write_16(fout, value):
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fout.write('0x%02x, 0x%02x, ' % (value & 0xff, (value >> 8) & 0xff))
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def write_uuid(uuid):
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for byte in uuid:
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fout.write( "0x%02x, " % byte)
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def write_string(fout, text):
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for l in text.lstrip('"').rstrip('"'):
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write_8(fout, ord(l))
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def write_sequence(fout, text):
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parts = text.split()
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for part in parts:
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fout.write("0x%s, " % (part.strip()))
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def write_indent(fout):
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fout.write(" ")
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def is_string(text):
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for item in text.split(" "):
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if not all(c in string.hexdigits for c in item):
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return True
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return False
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def add_client_characteristic_configuration(properties):
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return properties & (property_flags['NOTIFY'] | property_flags['INDICATE'])
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def parseService(fout, parts, service_type):
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global handle
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global total_size
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global current_service_uuid_string
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global current_service_start_handle
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global services
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if current_service_uuid_string:
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fout.write("\n")
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# print("append service %s = [%d, %d]\n" % (current_characteristic_uuid_string, current_service_start_handle, handle-1))
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services[current_service_uuid_string] = [current_service_start_handle, handle-1]
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property = property_flags['READ'];
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write_indent(fout)
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fout.write('// 0x%04x %s\n' % (handle, '-'.join(parts)))
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uuid = parseUUID(parts[1])
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uuid_size = len(uuid)
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size = 2 + 2 + 2 + uuid_size + 2
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if service_type == 0x2802:
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size += 4
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write_indent(fout)
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write_16(fout, size)
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write_16(fout, property)
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write_16(fout, handle)
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write_16(fout, service_type)
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write_uuid(uuid)
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fout.write("\n")
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current_service_uuid_string = keyForUUID(uuid)
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current_service_start_handle = handle
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handle = handle + 1
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total_size = total_size + size
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def parsePrimaryService(fout, parts):
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parseService(fout, parts, 0x2800)
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def parseSecondaryService(fout, parts):
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parseService(fout, parts, 0x2801)
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def parseIncludeService(fout, parts):
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global handle
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global total_size
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property = property_flags['READ'];
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write_indent(fout)
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fout.write('// 0x%04x %s\n' % (handle, '-'.join(parts)))
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uuid = parseUUID(parts[1])
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uuid_size = len(uuid)
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if uuid_size > 2:
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uuid_size = 0
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# print("Include Service ", keyForUUID(uuid))
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size = 2 + 2 + 2 + 2 + 4 + uuid_size
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keyUUID = keyForUUID(uuid)
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write_indent(fout)
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write_16(fout, size)
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write_16(fout, property)
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write_16(fout, handle)
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write_16(fout, 0x2802)
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write_16(fout, services[keyUUID][0])
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write_16(fout, services[keyUUID][1])
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if uuid_size > 0:
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write_uuid(uuid)
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fout.write("\n")
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handle = handle + 1
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total_size = total_size + size
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def parseCharacteristic(fout, parts):
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global handle
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global total_size
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global current_characteristic_uuid_string
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global characteristic_indices
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property_read = property_flags['READ'];
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# enumerate characteristics with same UUID, using optional name tag if available
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current_characteristic_uuid_string = c_string_for_uuid(parts[1]);
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index = 1
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if current_characteristic_uuid_string in characteristic_indices:
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index = characteristic_indices[current_characteristic_uuid_string] + 1
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characteristic_indices[current_characteristic_uuid_string] = index
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if len(parts) > 4:
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current_characteristic_uuid_string += '_' + parts[4].upper().replace(' ','_')
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else:
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current_characteristic_uuid_string += ('_%02x' % index)
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uuid = parseUUID(parts[1])
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uuid_size = len(uuid)
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properties = parseProperties(parts[2])
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value = ', '.join([str(x) for x in parts[3:]])
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# reliable writes is defined in an extended properties
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if (properties & property_flags['RELIABLE_WRITE']):
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properties = properties | property_flags['EXTENDED_PROPERTIES']
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write_indent(fout)
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fout.write('// 0x%04x %s\n' % (handle, '-'.join(parts[0:3])))
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size = 2 + 2 + 2 + 2 + (1+2+uuid_size)
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write_indent(fout)
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write_16(fout, size)
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write_16(fout, property_read)
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write_16(fout, handle)
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write_16(fout, 0x2803)
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write_8(fout, properties)
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write_16(fout, handle+1)
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write_uuid(uuid)
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fout.write("\n")
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handle = handle + 1
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total_size = total_size + size
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size = 2 + 2 + 2 + uuid_size
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if is_string(value):
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size = size + len(value)
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else:
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size = size + len(value.split())
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if uuid_size == 16:
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properties = properties | property_flags['LONG_UUID'];
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write_indent(fout)
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fout.write('// 0x%04x VALUE-%s-'"'%s'"'\n' % (handle, '-'.join(parts[1:3]),value))
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write_indent(fout)
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write_16(fout, size)
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write_16(fout, properties)
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write_16(fout, handle)
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write_uuid(uuid)
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if is_string(value):
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write_string(fout, value)
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else:
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write_sequence(fout,value)
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fout.write("\n")
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defines.append('#define ATT_CHARACTERISTIC_%s_VALUE_HANDLE 0x%04x' % (current_characteristic_uuid_string, handle))
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handle = handle + 1
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if add_client_characteristic_configuration(properties):
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size = 2 + 2 + 2 + 2 + 2
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write_indent(fout)
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fout.write('// 0x%04x CLIENT_CHARACTERISTIC_CONFIGURATION\n' % (handle))
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write_indent(fout)
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write_16(fout, size)
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write_16(fout, property_flags['READ'] | property_flags['WRITE'] | property_flags['DYNAMIC'])
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write_16(fout, handle)
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write_16(fout, 0x2902)
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write_16(fout, 0)
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fout.write("\n")
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defines.append('#define ATT_CHARACTERISTIC_%s_CLIENT_CONFIGURATION_HANDLE 0x%04x' % (current_characteristic_uuid_string, handle))
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handle = handle + 1
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if properties & property_flags['RELIABLE_WRITE']:
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size = 2 + 2 + 2 + 2 + 2
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write_indent(fout)
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fout.write('// 0x%04x CHARACTERISTIC_EXTENDED_PROPERTIES\n' % (handle))
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write_indent(fout)
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write_16(fout, size)
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write_16(fout, property_flags['READ'])
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write_16(fout, handle)
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write_16(fout, 0x2900)
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write_16(fout, 1) # Reliable Write
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fout.write("\n")
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handle = handle + 1
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def parseCharacteristicUserDescription(fout, parts):
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global handle
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global total_size
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global current_characteristic_uuid_string
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properties = parseProperties(parts[1])
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value = parts[2]
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size = 2 + 2 + 2 + 2
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if is_string(value):
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size = size + len(value) - 2
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else:
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size = size + len(value.split())
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write_indent(fout)
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fout.write('// 0x%04x CHARACTERISTIC_USER_DESCRIPTION-%s\n' % (handle, '-'.join(parts[1:])))
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write_indent(fout)
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write_16(fout, size)
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write_16(fout, properties)
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write_16(fout, handle)
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write_16(fout, 0x2901)
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if is_string(value):
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write_string(fout, value)
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else:
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write_sequence(fout,value)
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fout.write("\n")
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defines.append('#define ATT_CHARACTERISTIC_%s_USER_DESCRIPTION_HANDLE 0x%04x' % (current_characteristic_uuid_string, handle))
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handle = handle + 1
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def parseServerCharacteristicConfiguration(fout, parts):
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global handle
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global total_size
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global current_characteristic_uuid_string
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properties = parseProperties(parts[1])
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properties = properties | property_flags['DYNAMIC']
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size = 2 + 2 + 2 + 2
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write_indent(fout)
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fout.write('// 0x%04x SERVER_CHARACTERISTIC_CONFIGURATION-%s\n' % (handle, '-'.join(parts[1:])))
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write_indent(fout)
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write_16(fout, size)
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write_16(fout, properties)
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write_16(fout, handle)
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write_16(fout, 0x2903)
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fout.write("\n")
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defines.append('#define ATT_CHARACTERISTIC_%s_SERVER_CONFIGURATION_HANDLE 0x%04x' % (current_characteristic_uuid_string, handle))
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handle = handle + 1
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def parseCharacteristicFormat(fout, parts):
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global handle
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global total_size
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property_read = property_flags['READ'];
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identifier = parts[1]
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presentation_formats[identifier] = handle
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# print("format '%s' with handle %d\n" % (identifier, handle))
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format = parts[2]
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exponent = parts[3]
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unit = parseUUID(parts[4])
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name_space = parts[5]
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description = parseUUID(parts[6])
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size = 2 + 2 + 2 + 2 + 7
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write_indent(fout)
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fout.write('// 0x%04x CHARACTERISTIC_FORMAT-%s\n' % (handle, '-'.join(parts[1:])))
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write_indent(fout)
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write_16(fout, size)
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write_16(fout, property_read)
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write_16(fout, handle)
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write_16(fout, 0x2904)
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write_sequence(fout, format)
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write_sequence(fout, exponent)
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write_uuid(unit)
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write_sequence(fout, name_space)
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write_uuid(description)
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fout.write("\n")
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handle = handle + 1
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def parseCharacteristicAggregateFormat(fout, parts):
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global handle
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global total_size
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property_read = property_flags['READ'];
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size = 2 + 2 + 2 + 2 + (len(parts)-1) * 2
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write_indent(fout)
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fout.write('// 0x%04x CHARACTERISTIC_AGGREGATE_FORMAT-%s\n' % (handle, '-'.join(parts[1:])))
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write_indent(fout)
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write_16(fout, size)
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write_16(fout, property_read)
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write_16(fout, handle)
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write_16(fout, 0x2905)
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for identifier in parts[1:]:
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format_handle = presentation_formats[identifier]
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if format == 0:
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print("ERROR: identifier '%s' in CHARACTERISTIC_AGGREGATE_FORMAT undefined" % identifier)
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sys.exit(1)
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write_16(fout, format_handle)
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fout.write("\n")
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handle = handle + 1
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def parseReportReference(fout, parts):
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global handle
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global total_size
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property_read = property_flags['READ'];
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size = 2 + 2 + 2 + 2 + 1 + 1
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report_id = parts[1]
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report_type = parts[2]
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write_indent(fout)
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fout.write('// 0x%04x REPORT_REFERENCE-%s\n' % (handle, '-'.join(parts[1:])))
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write_indent(fout)
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write_16(fout, size)
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write_16(fout, property_read)
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write_16(fout, handle)
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write_16(fout, 0x2908)
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write_sequence(fout, report_id)
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write_sequence(fout, report_type)
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fout.write("\n")
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handle = handle + 1
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def parseNumberOfDigitals(fout, parts):
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global handle
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global total_size
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property_read = property_flags['READ'];
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size = 2 + 2 + 2 + 2 + 1
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no_of_digitals = parts[1]
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write_indent(fout)
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fout.write('// 0x%04x NUMBER_OF_DIGITALS-%s\n' % (handle, '-'.join(parts[1:])))
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write_indent(fout)
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write_16(fout, size)
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write_16(fout, property_read)
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write_16(fout, handle)
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write_16(fout, 0x2909)
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write_sequence(fout, no_of_digitals)
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fout.write("\n")
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handle = handle + 1
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def parse(fname_in, fin, fname_out, fout):
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global handle
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global total_size
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fout.write(header.format(fname_out, fname_in))
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fout.write('{\n')
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for line in fin:
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|
line = line.strip("\n\r ")
|
|
|
|
if line.startswith("#") or line.startswith("//"):
|
|
fout.write("//" + line.lstrip('/#') + '\n')
|
|
continue
|
|
|
|
if len(line) == 0:
|
|
continue
|
|
|
|
f = io.StringIO(line)
|
|
parts_list = csv.reader(f, delimiter=',', quotechar='"')
|
|
|
|
for parts in parts_list:
|
|
for index, object in enumerate(parts):
|
|
parts[index] = object.strip().lstrip('"').rstrip('"')
|
|
|
|
if parts[0] == 'PRIMARY_SERVICE':
|
|
parsePrimaryService(fout, parts)
|
|
continue
|
|
|
|
if parts[0] == 'SECONDARY_SERVICE':
|
|
parseSecondaryService(fout, parts)
|
|
continue
|
|
|
|
if parts[0] == 'INCLUDE_SERVICE':
|
|
parseIncludeService(fout, parts)
|
|
continue
|
|
|
|
# 2803
|
|
if parts[0] == 'CHARACTERISTIC':
|
|
parseCharacteristic(fout, parts)
|
|
continue
|
|
|
|
# 2900 Characteristic Extended Properties
|
|
|
|
# 2901
|
|
if parts[0] == 'CHARACTERISTIC_USER_DESCRIPTION':
|
|
parseCharacteristicUserDescription(fout, parts)
|
|
continue
|
|
|
|
# 2902 Client Characteristic Configuration - included in Characteristic if
|
|
# notification / indication is supported
|
|
|
|
# 2903
|
|
if parts[0] == 'SERVER_CHARACTERISTIC_CONFIGURATION':
|
|
parseServerCharacteristicConfiguration(fout, parts)
|
|
continue
|
|
|
|
# 2904
|
|
if parts[0] == 'CHARACTERISTIC_FORMAT':
|
|
parseCharacteristicFormat(fout, parts)
|
|
continue
|
|
|
|
# 2905
|
|
if parts[0] == 'CHARACTERISTIC_AGGREGATE_FORMAT':
|
|
parseCharacteristicAggregateFormat(fout, parts)
|
|
continue
|
|
|
|
# 2906
|
|
if parts[0] == 'VALID_RANGE':
|
|
print("WARNING: %s not implemented yet\n" % (parts[0]))
|
|
continue
|
|
|
|
# 2907
|
|
if parts[0] == 'EXTERNAL_REPORT_REFERENCE':
|
|
print("WARNING: %s not implemented yet\n" % (parts[0]))
|
|
continue
|
|
|
|
# 2908
|
|
if parts[0] == 'REPORT_REFERENCE':
|
|
parseReportReference(fout, parts)
|
|
continue
|
|
|
|
# 2909
|
|
if parts[0] == 'NUMBER_OF_DIGITALS':
|
|
parseNumberOfDigitals(fout, parts)
|
|
continue
|
|
|
|
# 290A
|
|
if parts[0] == 'VALUE_TRIGGER_SETTING':
|
|
print("WARNING: %s not implemented yet\n" % (parts[0]))
|
|
continue
|
|
|
|
# 290B
|
|
if parts[0] == 'ENVIRONMENTAL_SENSING_CONFIGURATION':
|
|
print("WARNING: %s not implemented yet\n" % (parts[0]))
|
|
continue
|
|
|
|
# 290C
|
|
if parts[0] == 'ENVIRONMENTAL_SENSING_MEASUREMENT':
|
|
print("WARNING: %s not implemented yet\n" % (parts[0]))
|
|
continue
|
|
|
|
# 290D
|
|
if parts[0] == 'ENVIRONMENTAL_SENSING_TRIGGER_SETTING':
|
|
print("WARNING: %s not implemented yet\n" % (parts[0]))
|
|
continue
|
|
|
|
# 2906
|
|
if parts[0] == 'VALID_RANGE':
|
|
print("WARNING: %s not implemented yet\n" % (parts[0]))
|
|
continue
|
|
|
|
print("WARNING: unknown token: %s\n" % (parts[0]))
|
|
|
|
write_indent(fout)
|
|
fout.write("// END\n");
|
|
write_indent(fout)
|
|
write_16(fout,0)
|
|
fout.write("\n")
|
|
total_size = total_size + 2
|
|
|
|
fout.write("}; // total size %u bytes \n" % total_size);
|
|
|
|
def listHandles(fout):
|
|
fout.write('\n\n')
|
|
fout.write('//\n')
|
|
fout.write('// list mapping between characteristics and handles\n')
|
|
fout.write('//\n')
|
|
for define in defines:
|
|
fout.write(define)
|
|
fout.write('\n')
|
|
|
|
if (len(sys.argv) < 3):
|
|
print(usage)
|
|
sys.exit(1)
|
|
try:
|
|
filename = sys.argv[2]
|
|
fin = codecs.open (sys.argv[1], encoding='utf-8')
|
|
fout = open (filename, 'w')
|
|
parse(sys.argv[1], fin, filename, fout)
|
|
listHandles(fout)
|
|
fout.close()
|
|
print('Created', filename)
|
|
|
|
except IOError as e:
|
|
print(usage)
|
|
sys.exit(1)
|
|
|
|
print('Compilation successful!\n')
|