o Initial import.HEADmaster

19 files changed, 6131 insertions, 0 deletions

diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/LICENSE.txt b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/LICENSE.txt
new file mode 100644
index 0000000..d11c9af
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/LICENSE.txt
@@ -0,0 +1,20 @@
+Copyright (c) 2011 Petteri Aimonen <jpa at nanopb.mail.kapsi.fi>
+
+This software is provided 'as-is', without any express or 
+implied warranty. In no event will the authors be held liable 
+for any damages arising from the use of this software.
+
+Permission is granted to anyone to use this software for any 
+purpose, including commercial applications, and to alter it and 
+redistribute it freely, subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you 
+   must not claim that you wrote the original software. If you use 
+   this software in a product, an acknowledgment in the product 
+   documentation would be appreciated but is not required.
+
+2. Altered source versions must be plainly marked as such, and 
+   must not be misrepresented as being the original software.
+
+3. This notice may not be removed or altered from any source 
+   distribution.
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/camel_case_splitter.py b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/camel_case_splitter.py
new file mode 100644
index 0000000..4397b66
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/camel_case_splitter.py
@@ -0,0 +1,35 @@
+def split_camel_case(input):
+    def remove_camel_case(camel_case_input):
+        no_camel_case = ""
+        if len(camel_case_input) <= 0:
+            return ""
+        no_camel_case += camel_case_input[0].lower()
+        for c in camel_case_input[1:]:
+            if c.isupper():
+                no_camel_case += "_" + c.lower()
+            else:
+                no_camel_case += c
+        return no_camel_case
+
+    underscore_split = input.split("_")
+    retval = ""
+    for i in underscore_split:
+        if is_camel_case_name(i):
+            retval += remove_camel_case(i) + "_"
+        else:
+            retval += i + "_"
+
+    return retval[:-1].replace("__", "_")
+
+
+def is_camel_case_name(input):
+    if '_' in input:
+        return False
+
+    if input.islower():
+        return False
+
+    if input.isupper():
+        return False
+
+    return True
\ No newline at end of file
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/nanopb_generator.py b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/nanopb_generator.py
new file mode 100644
index 0000000..aec5123
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/nanopb_generator.py
@@ -0,0 +1,1604 @@
+#!/usr/bin/env python
+
+from __future__ import unicode_literals
+
+'''Generate header file for nanopb from a ProtoBuf FileDescriptorSet.'''
+nanopb_version = "nanopb-0.3.6-dev"
+
+import sys
+import re
+from functools import reduce
+
+try:
+    # Add some dummy imports to keep packaging tools happy.
+    import google, distutils.util # bbfreeze seems to need these
+    import pkg_resources # pyinstaller / protobuf 2.5 seem to need these
+except:
+    # Don't care, we will error out later if it is actually important.
+    pass
+
+try:
+    import google.protobuf.text_format as text_format
+    import google.protobuf.descriptor_pb2 as descriptor
+except:
+    sys.stderr.write('''
+         *************************************************************
+         *** Could not import the Google protobuf Python libraries ***
+         *** Try installing package 'python-protobuf' or similar.  ***
+         *************************************************************
+    ''' + '\n')
+    raise
+
+try:
+    import proto.nanopb_pb2 as nanopb_pb2
+    import proto.plugin_pb2 as plugin_pb2
+except:
+    sys.stderr.write('''
+         ********************************************************************
+         *** Failed to import the protocol definitions for generator.     ***
+         *** You have to run 'make' in the nanopb/generator/proto folder. ***
+         ********************************************************************
+    ''' + '\n')
+    raise
+
+# ---------------------------------------------------------------------------
+#                     Generation of single fields
+# ---------------------------------------------------------------------------
+
+import time
+import os.path
+
+# Values are tuple (c type, pb type, encoded size, int_size_allowed)
+FieldD = descriptor.FieldDescriptorProto
+datatypes = {
+    FieldD.TYPE_BOOL:       ('bool',     'BOOL',        1,  False),
+    FieldD.TYPE_DOUBLE:     ('double',   'DOUBLE',      8,  False),
+    FieldD.TYPE_FIXED32:    ('uint32_t', 'FIXED32',     4,  False),
+    FieldD.TYPE_FIXED64:    ('uint64_t', 'FIXED64',     8,  False),
+    FieldD.TYPE_FLOAT:      ('float',    'FLOAT',       4,  False),
+    FieldD.TYPE_INT32:      ('int32_t',  'INT32',      10,  True),
+    FieldD.TYPE_INT64:      ('int64_t',  'INT64',      10,  True),
+    FieldD.TYPE_SFIXED32:   ('int32_t',  'SFIXED32',    4,  False),
+    FieldD.TYPE_SFIXED64:   ('int64_t',  'SFIXED64',    8,  False),
+    FieldD.TYPE_SINT32:     ('int32_t',  'SINT32',      5,  True),
+    FieldD.TYPE_SINT64:     ('int64_t',  'SINT64',     10,  True),
+    FieldD.TYPE_UINT32:     ('uint32_t', 'UINT32',      5,  True),
+    FieldD.TYPE_UINT64:     ('uint64_t', 'UINT64',     10,  True)
+}
+
+# Integer size overrides (from .proto settings)
+intsizes = {
+    nanopb_pb2.IS_8:     'int8_t',
+    nanopb_pb2.IS_16:    'int16_t',
+    nanopb_pb2.IS_32:    'int32_t',
+    nanopb_pb2.IS_64:    'int64_t',
+}
+
+# String types (for python 2 / python 3 compatibility)
+try:
+    strtypes = (unicode, str)
+except NameError:
+    strtypes = (str, )
+
+from camel_case_splitter import split_camel_case
+
+class Names:
+    '''Keeps a set of nested names and formats them to C identifier.'''
+    def __init__(self, parts = ()):
+        if isinstance(parts, Names):
+            parts = parts.parts
+        self.parts = tuple(parts)
+
+    def __str__(self):
+        name_str = '_'.join(self.parts)
+        return split_camel_case(name_str)
+
+    def __add__(self, other):
+        if isinstance(other, strtypes):
+            return Names(self.parts + (other,))
+        elif isinstance(other, tuple):
+            return Names(self.parts + other)
+        else:
+            raise ValueError("Name parts should be of type str")
+
+    def __eq__(self, other):
+        return isinstance(other, Names) and self.parts == other.parts
+
+def names_from_type_name(type_name):
+    '''Parse Names() from FieldDescriptorProto type_name'''
+    if type_name[0] != '.':
+        raise NotImplementedError("Lookup of non-absolute type names is not supported")
+    return Names(type_name[1:].split('.'))
+
+def varint_max_size(max_value):
+    '''Returns the maximum number of bytes a varint can take when encoded.'''
+    if max_value < 0:
+        max_value = 2**64 - max_value
+    for i in range(1, 11):
+        if (max_value >> (i * 7)) == 0:
+            return i
+    raise ValueError("Value too large for varint: " + str(max_value))
+
+assert varint_max_size(-1) == 10
+assert varint_max_size(0) == 1
+assert varint_max_size(127) == 1
+assert varint_max_size(128) == 2
+
+class EncodedSize:
+    '''Class used to represent the encoded size of a field or a message.
+    Consists of a combination of symbolic sizes and integer sizes.'''
+    def __init__(self, value = 0, symbols = []):
+        if isinstance(value, EncodedSize):
+            self.value = value.value
+            self.symbols = value.symbols
+        elif isinstance(value, strtypes + (Names,)):
+            self.symbols = [str(value)]
+            self.value = 0
+        else:
+            self.value = value
+            self.symbols = symbols
+
+    def __add__(self, other):
+        if isinstance(other, int):
+            return EncodedSize(self.value + other, self.symbols)
+        elif isinstance(other, strtypes + (Names,)):
+            return EncodedSize(self.value, self.symbols + [str(other)])
+        elif isinstance(other, EncodedSize):
+            return EncodedSize(self.value + other.value, self.symbols + other.symbols)
+        else:
+            raise ValueError("Cannot add size: " + repr(other))
+
+    def __mul__(self, other):
+        if isinstance(other, int):
+            return EncodedSize(self.value * other, [str(other) + '*' + s for s in self.symbols])
+        else:
+            raise ValueError("Cannot multiply size: " + repr(other))
+
+    def __str__(self):
+        if not self.symbols:
+            return str(self.value)
+        else:
+            return '(' + str(self.value) + ' + ' + ' + '.join(self.symbols) + ')'
+
+    def upperlimit(self):
+        if not self.symbols:
+            return self.value
+        else:
+            return 2**32 - 1
+
+class Enum:
+    def __init__(self, names, desc, enum_options):
+        '''desc is EnumDescriptorProto'''
+
+        self.options = enum_options
+        self.names = names + desc.name
+        self.names_t = self.names + "_t"
+        self.names_upper = str(self.names).upper()
+
+        if enum_options.long_names:
+            self.values = [(str(self.names + x.name).upper(), x.number) for x in desc.value]
+        else:
+            self.values = [(str(names + x.name).upper(), x.number) for x in desc.value]
+
+        self.value_longnames = [str(self.names + x.name).upper() for x in desc.value]
+        self.packed = enum_options.packed_enum
+
+    def has_negative(self):
+        for n, v in self.values:
+            if v < 0:
+                return True
+        return False
+
+    def encoded_size(self):
+        return max([varint_max_size(v) for n,v in self.values])
+
+    def __str__(self):
+        # result = 'typedef enum _%s {\n' % self.names_t
+        result = 'typedef enum\n{\n'
+        result += ',\n'.join(["    %s = %d" % x for x in self.values])
+        result += '\n}'
+
+        if self.packed:
+            result += ' pb_packed'
+
+        result += ' %s;' % self.names_t
+
+        result += '\n#define %s_MIN %s' % (self.names_upper, self.values[0][0])
+        result += '\n#define %s_MAX %s' % (self.names_upper, self.values[-1][0])
+        result += '\n#define %s_ARRAYSIZE ((%s)(%s+1))' % (self.names_upper, str(self.names_t), self.values[-1][0])
+
+        if not self.options.long_names:
+            # Define the long names always so that enum value references
+            # from other files work properly.
+            for i, x in enumerate(self.values):
+                result += '\n#define %s %s' % (self.value_longnames[i], x[0])
+
+        return result
+
+class FieldMaxSize:
+    def __init__(self, worst = 0, checks = [], field_name = 'undefined'):
+        if isinstance(worst, list):
+            self.worst = max(i for i in worst if i is not None)
+        else:
+            self.worst = worst
+
+        self.worst_field = field_name
+        self.checks = checks
+
+    def extend(self, extend, field_name = None):
+        self.worst = max(self.worst, extend.worst)
+
+        if self.worst == extend.worst:
+            self.worst_field = extend.worst_field
+
+        self.checks.extend(extend.checks)
+
+class Field:
+    def __init__(self, struct_name, desc, field_options):
+        '''desc is FieldDescriptorProto'''
+        self.tag = desc.number
+        self.struct_name = struct_name
+        self.union_name = None
+        self.name = desc.name
+        self.default = None
+        self.max_size = None
+        self.max_count = None
+        self.array_decl = ""
+        self.enc_size = None
+        self.ctype = None
+        self.ctype_t = None
+
+        # Parse field options
+        if field_options.HasField("max_size"):
+            self.max_size = field_options.max_size
+
+        if field_options.HasField("max_count"):
+            self.max_count = field_options.max_count
+
+        if desc.HasField('default_value'):
+            self.default = desc.default_value
+
+        # Check field rules, i.e. required/optional/repeated.
+        can_be_static = True
+        if desc.label == FieldD.LABEL_REQUIRED:
+            self.rules = 'REQUIRED'
+        elif desc.label == FieldD.LABEL_OPTIONAL:
+            self.rules = 'OPTIONAL'
+        elif desc.label == FieldD.LABEL_REPEATED:
+            self.rules = 'REPEATED'
+            if self.max_count is None:
+                can_be_static = False
+            else:
+                self.array_decl = '[%d]' % self.max_count
+        else:
+            raise NotImplementedError(desc.label)
+
+        # Check if the field can be implemented with static allocation
+        # i.e. whether the data size is known.
+        if desc.type == FieldD.TYPE_STRING and self.max_size is None:
+            can_be_static = False
+
+        if desc.type == FieldD.TYPE_BYTES and self.max_size is None:
+            can_be_static = False
+
+        # Decide how the field data will be allocated
+        if field_options.type == nanopb_pb2.FT_DEFAULT:
+            if can_be_static:
+                field_options.type = nanopb_pb2.FT_STATIC
+            else:
+                field_options.type = nanopb_pb2.FT_CALLBACK
+
+        if field_options.type == nanopb_pb2.FT_STATIC and not can_be_static:
+            raise Exception("Field %s is defined as static, but max_size or "
+                            "max_count is not given." % self.name)
+
+        if field_options.type == nanopb_pb2.FT_STATIC:
+            self.allocation = 'STATIC'
+        elif field_options.type == nanopb_pb2.FT_POINTER:
+            self.allocation = 'POINTER'
+        elif field_options.type == nanopb_pb2.FT_CALLBACK:
+            self.allocation = 'CALLBACK'
+        else:
+            raise NotImplementedError(field_options.type)
+
+        # Decide the C data type to use in the struct.
+        if desc.type in datatypes:
+            self.ctype, self.pbtype, self.enc_size, isa = datatypes[desc.type]
+            self.ctype_t = self.ctype
+
+            # Override the field size if user wants to use smaller integers
+            if isa and field_options.int_size != nanopb_pb2.IS_DEFAULT:
+                self.ctype = intsizes[field_options.int_size]
+                self.ctype_t = self.ctype
+                if desc.type == FieldD.TYPE_UINT32 or desc.type == FieldD.TYPE_UINT64:
+                    self.ctype = 'u' + self.ctype;
+                    self.ctype_t = self.ctype
+        elif desc.type == FieldD.TYPE_ENUM:
+            self.pbtype = 'ENUM'
+            self.ctype = names_from_type_name(desc.type_name)
+            self.ctype_t = self.ctype + "_t"
+            if self.default is not None:
+                self.default = self.ctype + self.default
+            self.enc_size = None # Needs to be filled in when enum values are known
+        elif desc.type == FieldD.TYPE_STRING:
+            self.pbtype = 'STRING'
+            self.ctype = 'char'
+            self.ctype_t = self.ctype
+            if self.allocation == 'STATIC':
+                self.ctype = 'char'
+                self.array_decl += '[%d]' % self.max_size
+                self.enc_size = varint_max_size(self.max_size) + self.max_size
+        elif desc.type == FieldD.TYPE_BYTES:
+            self.pbtype = 'BYTES'
+            if self.allocation == 'STATIC':
+                self.ctype = self.struct_name + self.name + 't'
+                self.ctype_t = self.ctype
+                self.enc_size = varint_max_size(self.max_size) + self.max_size
+            elif self.allocation == 'POINTER':
+                self.ctype = 'pb_bytes_array_t'
+                self.ctype_t = self.ctype
+        elif desc.type == FieldD.TYPE_MESSAGE:
+            self.pbtype = 'MESSAGE'
+            self.ctype = self.submsgname = names_from_type_name(desc.type_name)
+            self.ctype_t = self.ctype + "_t"
+            self.enc_size = None # Needs to be filled in after the message type is available
+        else:
+            raise NotImplementedError(desc.type)
+
+    def __lt__(self, other):
+        return self.tag < other.tag
+
+    def __str__(self):
+        result = ''
+        if self.allocation == 'POINTER':
+            if self.rules == 'REPEATED':
+                result += '    pb_size_t ' + self.name + '_count;\n'
+
+            if self.pbtype == 'MESSAGE':
+                # Use struct definition, so recursive submessages are possible
+                result += '    struct _%s *%s;' % (self.ctype_t, self.name)
+            elif self.rules == 'REPEATED' and self.pbtype in ['STRING', 'BYTES']:
+                # String/bytes arrays need to be defined as pointers to pointers
+                result += '    %s **%s;' % (self.ctype_t, self.name)
+            else:
+                result += '    %s *%s;' % (self.ctype_t, self.name)
+        elif self.allocation == 'CALLBACK':
+            result += '    pb_callback_t %s;' % self.name
+        else:
+            if self.rules == 'OPTIONAL' and self.allocation == 'STATIC':
+                result += '    bool has_' + self.name + ';\n'
+            elif self.rules == 'REPEATED' and self.allocation == 'STATIC':
+                result += '    pb_size_t ' + self.name + '_count;\n'
+            result += '    %s %s%s;' % (self.ctype_t, self.name, self.array_decl)
+        return result
+
+    def types(self):
+        '''Return definitions for any special types this field might need.'''
+        if self.pbtype == 'BYTES' and self.allocation == 'STATIC':
+            result = 'typedef PB_BYTES_ARRAY_T(%d) %s;\n' % (self.max_size, self.ctype)
+        else:
+            result = ''
+        return result
+
+    def get_dependencies(self):
+        '''Get list of type names used by this field.'''
+        if self.allocation == 'STATIC':
+            return [str(self.ctype)]
+        else:
+            return []
+
+    def get_initializer(self, null_init, inner_init_only = False):
+        '''Return literal expression for this field's default value.
+        null_init: If True, initialize to a 0 value instead of default from .proto
+        inner_init_only: If True, exclude initialization for any count/has fields
+        '''
+
+        inner_init = None
+        if self.pbtype == 'MESSAGE':
+            if null_init:
+                inner_init = '%s_init_zero' % self.ctype
+            else:
+                inner_init = '%s_init_default' % self.ctype
+        elif self.default is None or null_init:
+            if self.pbtype == 'STRING':
+                inner_init = '""'
+            elif self.pbtype == 'BYTES':
+                inner_init = '{0, {0}}'
+            elif self.pbtype in ('ENUM', 'UENUM'):
+                inner_init = '(%s)0' % self.ctype_t
+            else:
+                inner_init = '0'
+        else:
+            if self.pbtype == 'STRING':
+                inner_init = self.default.replace('"', '\\"')
+                inner_init = '"' + inner_init + '"'
+            elif self.pbtype == 'BYTES':
+                data = ['0x%02x' % ord(c) for c in self.default]
+                if len(data) == 0:
+                    inner_init = '{0, {0}}'
+                else:
+                    inner_init = '{%d, {%s}}' % (len(data), ','.join(data))
+            elif self.pbtype in ['FIXED32', 'UINT32']:
+                inner_init = str(self.default) + 'u'
+            elif self.pbtype in ['FIXED64', 'UINT64']:
+                inner_init = str(self.default) + 'ull'
+            elif self.pbtype in ['SFIXED64', 'INT64']:
+                inner_init = str(self.default) + 'll'
+            elif self.pbtype in ('ENUM', 'UENUM'):
+                inner_init = str(self.default).upper()
+            else:
+                inner_init = str(self.default)
+
+        if inner_init_only:
+            return inner_init
+
+        outer_init = None
+        if self.allocation == 'STATIC':
+            if self.rules == 'REPEATED':
+                outer_init = '0, {'
+                outer_init += ', '.join([inner_init] * self.max_count)
+                outer_init += '}'
+            elif self.rules == 'OPTIONAL':
+                outer_init = 'false, ' + inner_init
+            else:
+                outer_init = inner_init
+        elif self.allocation == 'POINTER':
+            if self.rules == 'REPEATED':
+                outer_init = '0, NULL'
+            else:
+                outer_init = 'NULL'
+        elif self.allocation == 'CALLBACK':
+            if self.pbtype == 'EXTENSION':
+                outer_init = 'NULL'
+            else:
+                outer_init = '{{NULL}, NULL}'
+
+        return outer_init
+
+    def default_decl(self, declaration_only = False):
+        '''Return definition for this field's default value.'''
+        if self.default is None:
+            return None
+
+        ctype = self.ctype_t
+        default = self.get_initializer(False, True)
+        array_decl = ''
+
+        if self.pbtype == 'STRING':
+            if self.allocation != 'STATIC':
+                return None # Not implemented
+            array_decl = '[%d]' % self.max_size
+        elif self.pbtype == 'BYTES':
+            if self.allocation != 'STATIC':
+                return None # Not implemented
+
+        if declaration_only:
+            return 'extern const %s %s_default%s;' % (ctype, self.struct_name + self.name, array_decl)
+        else:
+            return 'const %s %s_default%s = %s;' % (ctype, self.struct_name + self.name, array_decl, default)
+
+    def tags(self):
+        '''Return the #define for the tag number of this field.'''
+        identifier = ('%s_%s_tag' % (self.struct_name, self.name)).upper()
+        return '#define %-40s %d\n' % (identifier, self.tag)
+
+    def pb_field_t(self, prev_field_name):
+        '''Return the pb_field_t initializer to use in the constant array.
+        prev_field_name is the name of the previous field or None.
+        '''
+
+        if self.rules == 'ONEOF':
+            if self.anonymous:
+                result = '    PB_ANONYMOUS_ONEOF_FIELD(%s, ' % self.union_name
+            else:
+                result = '    PB_ONEOF_FIELD(%s, ' % self.union_name
+        else:
+            result = '    PB_FIELD('
+
+        result += '%3d, ' % self.tag
+        result += '%-8s, ' % self.pbtype
+        result += '%s, ' % self.rules
+        result += '%-8s, ' % self.allocation
+        result += '%s, ' % ("FIRST" if not prev_field_name else "OTHER")
+        result += '%s, ' % (str(self.struct_name) + "_t")
+        result += '%s, ' % self.name
+        result += '%s, ' % (prev_field_name or self.name)
+
+        if self.pbtype == 'MESSAGE':
+            result += '&%s_fields)' % str(self.submsgname)
+        elif self.default is None:
+            result += '0)'
+        elif self.pbtype in ['BYTES', 'STRING'] and self.allocation != 'STATIC':
+            result += '0)' # Arbitrary size default values not implemented
+        elif self.rules == 'OPTEXT':
+            result += '0)' # Default value for extensions is not implemented
+        else:
+            result += '&%s_default)' % (self.struct_name + self.name)
+
+        return result
+
+    def get_last_field_name(self):
+        return self.name
+
+    def largest_field_value(self):
+        '''Determine if this field needs 16bit or 32bit pb_field_t structure to compile properly.
+        Returns numeric value or a C-expression for assert.'''
+        check = []
+        if self.pbtype == 'MESSAGE':
+            if self.rules == 'REPEATED' and self.allocation == 'STATIC':
+                check.append('pb_membersize(%s, %s[0])' % (self.struct_name+"_t", self.name))
+            elif self.rules == 'ONEOF':
+                if self.anonymous:
+                    check.append('pb_membersize(%s, %s)' % (self.struct_name+"_t", self.name))
+                else:
+                    check.append('pb_membersize(%s, %s.%s)' % (self.struct_name+"_t", self.union_name, self.name))
+            else:
+                check.append('pb_membersize(%s, %s)' % (self.struct_name+"_t", self.name))
+
+        return FieldMaxSize([self.tag, self.max_size, self.max_count],
+                            check,
+                            ('%s.%s' % (self.struct_name, self.name)))
+
+    def encoded_size(self, dependencies):
+        '''Return the maximum size that this field can take when encoded,
+        including the field tag. If the size cannot be determined, returns
+        None.'''
+
+        if self.allocation != 'STATIC':
+            return None
+
+        if self.pbtype == 'MESSAGE':
+            encsize = None
+            if str(self.submsgname) in dependencies:
+                submsg = dependencies[str(self.submsgname)]
+                encsize = submsg.encoded_size(dependencies)
+                if encsize is not None:
+                    # Include submessage length prefix
+                    encsize += varint_max_size(encsize.upperlimit())
+
+            if encsize is None:
+                # Submessage or its size cannot be found.
+                # This can occur if submessage is defined in different
+                # file, and it or its .options could not be found.
+                # Instead of direct numeric value, reference the size that
+                # has been #defined in the other file.
+                encsize = EncodedSize(self.submsgname + 'size')
+
+                # We will have to make a conservative assumption on the length
+                # prefix size, though.
+                encsize += 5
+
+        elif self.pbtype in ['ENUM', 'UENUM']:
+            if str(self.ctype) in dependencies:
+                enumtype = dependencies[str(self.ctype)]
+                encsize = enumtype.encoded_size()
+            else:
+                # Conservative assumption
+                encsize = 10
+
+        elif self.enc_size is None:
+            raise RuntimeError("Could not determine encoded size for %s.%s"
+                               % (self.struct_name, self.name))
+        else:
+            encsize = EncodedSize(self.enc_size)
+
+        encsize += varint_max_size(self.tag << 3) # Tag + wire type
+
+        if self.rules == 'REPEATED':
+            # Decoders must be always able to handle unpacked arrays.
+            # Therefore we have to reserve space for it, even though
+            # we emit packed arrays ourselves.
+            encsize *= self.max_count
+
+        return encsize
+
+
+class ExtensionRange(Field):
+    def __init__(self, struct_name, range_start, field_options):
+        '''Implements a special pb_extension_t* field in an extensible message
+        structure. The range_start signifies the index at which the extensions
+        start. Not necessarily all tags above this are extensions, it is merely
+        a speed optimization.
+        '''
+        self.tag = range_start
+        self.struct_name = struct_name
+        self.name = 'extensions'
+        self.pbtype = 'EXTENSION'
+        self.rules = 'OPTIONAL'
+        self.allocation = 'CALLBACK'
+        self.ctype = 'pb_extension_t'
+        self.array_decl = ''
+        self.default = None
+        self.max_size = 0
+        self.max_count = 0
+
+    def __str__(self):
+        return '    pb_extension_t *extensions;'
+
+    def types(self):
+        return ''
+
+    def tags(self):
+        return ''
+
+    def encoded_size(self, dependencies):
+        # We exclude extensions from the count, because they cannot be known
+        # until runtime. Other option would be to return None here, but this
+        # way the value remains useful if extensions are not used.
+        return EncodedSize(0)
+
+class ExtensionField(Field):
+    def __init__(self, struct_name, desc, field_options):
+        self.fullname = struct_name + desc.name
+        self.extendee_name = names_from_type_name(desc.extendee)
+        Field.__init__(self, self.fullname + 'struct', desc, field_options)
+
+        if self.rules != 'OPTIONAL':
+            self.skip = True
+        else:
+            self.skip = False
+            self.rules = 'OPTEXT'
+
+    def tags(self):
+        '''Return the #define for the tag number of this field.'''
+        identifier = ('%s_tag' % self.fullname).upper()
+        return '#define %-40s %d\n' % (identifier, self.tag)
+
+    def extension_decl(self):
+        '''Declaration of the extension type in the .pb.h file'''
+        if self.skip:
+            msg = '/* Extension field %s was skipped because only "optional"\n' % self.fullname
+            msg +='   type of extension fields is currently supported. */\n'
+            return msg
+
+        return ('extern const pb_extension_type_t %s; /* field type: %s */\n' %
+            (self.fullname, str(self).strip()))
+
+    def extension_def(self):
+        '''Definition of the extension type in the .pb.c file'''
+
+        if self.skip:
+            return ''
+
+        result  = 'typedef struct {\n'
+        result += str(self)
+        result += '\n} %s_t;\n\n' % self.struct_name
+        result += ('static const pb_field_t %s_field = \n  %s;\n\n' %
+                    (self.fullname, self.pb_field_t(None)))
+        result += 'const pb_extension_type_t %s = {\n' % self.fullname
+        result += '    NULL,\n'
+        result += '    NULL,\n'
+        result += '    &%s_field\n' % self.fullname
+        result += '};\n'
+        return result
+
+
+# ---------------------------------------------------------------------------
+#                   Generation of oneofs (unions)
+# ---------------------------------------------------------------------------
+
+class OneOf(Field):
+    def __init__(self, struct_name, oneof_desc):
+        self.struct_name = struct_name
+        self.name = oneof_desc.name
+        self.ctype = 'union'
+        self.pbtype = 'oneof'
+        self.fields = []
+        self.allocation = 'ONEOF'
+        self.default = None
+        self.rules = 'ONEOF'
+        self.anonymous = False
+
+    def add_field(self, field):
+        if field.allocation == 'CALLBACK':
+            raise Exception("Callback fields inside of oneof are not supported"
+                            + " (field %s)" % field.name)
+
+        field.union_name = self.name
+        field.rules = 'ONEOF'
+        field.anonymous = self.anonymous
+        self.fields.append(field)
+        self.fields.sort(key = lambda f: f.tag)
+
+        # Sort by the lowest tag number inside union
+        self.tag = min([f.tag for f in self.fields])
+
+    def __str__(self):
+        result = ''
+        if self.fields:
+            result += '    pb_size_t which_' + self.name + ";\n"
+            result += '    union {\n'
+            for f in self.fields:
+                result += '    ' + str(f).replace('\n', '\n    ') + '\n'
+            if self.anonymous:
+                result += '    };'
+            else:
+                result += '    } ' + self.name + ';'
+        return result
+
+    def types(self):
+        return ''.join([f.types() for f in self.fields])
+
+    def get_dependencies(self):
+        deps = []
+        for f in self.fields:
+            deps += f.get_dependencies()
+        return deps
+
+    def get_initializer(self, null_init):
+        return '0, {' + self.fields[0].get_initializer(null_init) + '}'
+
+    def default_decl(self, declaration_only = False):
+        return None
+
+    def tags(self):
+        return ''.join([f.tags() for f in self.fields])
+
+    def pb_field_t(self, prev_field_name):
+        result = ',\n'.join([f.pb_field_t(prev_field_name) for f in self.fields])
+        return result
+
+    def get_last_field_name(self):
+        if self.anonymous:
+            return self.fields[-1].name
+        else:
+            return self.name + '.' + self.fields[-1].name
+
+    def largest_field_value(self):
+        largest = FieldMaxSize()
+        for f in self.fields:
+            largest.extend(f.largest_field_value())
+        return largest
+
+    def encoded_size(self, dependencies):
+        '''Returns the size of the largest oneof field.'''
+        largest = EncodedSize(0)
+        for f in self.fields:
+            size = EncodedSize(f.encoded_size(dependencies))
+            if size.value is None:
+                return None
+            elif size.symbols:
+                return None # Cannot resolve maximum of symbols
+            elif size.value > largest.value:
+                largest = size
+
+        return largest
+
+# ---------------------------------------------------------------------------
+#                   Generation of messages (structures)
+# ---------------------------------------------------------------------------
+
+
+class Message:
+    def __init__(self, names, desc, message_options):
+        self.name = names
+        self.name_t = self.name + "_t"
+        self.fields = []
+        self.oneofs = {}
+        no_unions = []
+
+        if message_options.msgid:
+            self.msgid = message_options.msgid
+
+        if hasattr(desc, 'oneof_decl'):
+            for i, f in enumerate(desc.oneof_decl):
+                oneof_options = get_nanopb_suboptions(desc, message_options, self.name + f.name)
+                if oneof_options.no_unions:
+                    no_unions.append(i) # No union, but add fields normally
+                elif oneof_options.type == nanopb_pb2.FT_IGNORE:
+                    pass # No union and skip fields also
+                else:
+                    oneof = OneOf(self.name, f)
+                    if oneof_options.anonymous_oneof:
+                        oneof.anonymous = True
+                    self.oneofs[i] = oneof
+                    self.fields.append(oneof)
+
+        for f in desc.field:
+            field_options = get_nanopb_suboptions(f, message_options, self.name + f.name)
+            if field_options.type == nanopb_pb2.FT_IGNORE:
+                continue
+
+            field = Field(self.name, f, field_options)
+            if (hasattr(f, 'oneof_index') and
+                f.HasField('oneof_index') and
+                f.oneof_index not in no_unions):
+                if f.oneof_index in self.oneofs:
+                    self.oneofs[f.oneof_index].add_field(field)
+            else:
+                self.fields.append(field)
+
+        if len(desc.extension_range) > 0:
+            field_options = get_nanopb_suboptions(desc, message_options, self.name + 'extensions')
+            range_start = min([r.start for r in desc.extension_range])
+            if field_options.type != nanopb_pb2.FT_IGNORE:
+                self.fields.append(ExtensionRange(self.name, range_start, field_options))
+
+        self.packed = message_options.packed_struct
+        self.ordered_fields = self.fields[:]
+        self.ordered_fields.sort()
+
+    def get_dependencies(self):
+        '''Get list of type names that this structure refers to.'''
+        deps = []
+        for f in self.fields:
+            deps += f.get_dependencies()
+        return deps
+
+    def __str__(self):
+        # result = 'typedef struct _%s {\n' % self.name_t
+        result = 'typedef struct {\n'
+
+        if not self.ordered_fields:
+            # Empty structs are not allowed in C standard.
+            # Therefore add a dummy field if an empty message occurs.
+            result += '    char dummy_field;'
+        result += '\n'.join([str(f) for f in self.ordered_fields])
+        result += '\n/* @@protoc_insertion_point(struct:%s) */' % self.name_t
+        result += '\n}'
+
+        if self.packed:
+            result += ' pb_packed'
+
+        result += ' %s;' % self.name_t
+
+        if self.packed:
+            result = 'PB_PACKED_STRUCT_START\n' + result
+            result += '\nPB_PACKED_STRUCT_END'
+
+        return result
+
+    def types(self):
+        return ''.join([f.types() for f in self.fields])
+
+    def get_initializer(self, null_init):
+        if not self.ordered_fields:
+            return '{0}'
+
+        parts = []
+        for field in self.ordered_fields:
+            to_append = ''
+            for i in field.get_initializer(null_init).split(', '):
+                if 'init_default' in i or 'init_zero' in i:
+                    to_append += i.upper()
+                else:
+                    to_append += i
+                to_append += ", "
+
+            to_append = to_append[:-2]
+
+            parts.append(to_append)
+        return '{' + ', '.join(parts) + '}'
+
+    def default_decl(self, declaration_only = False):
+        result = ""
+        for field in self.fields:
+            default = field.default_decl(declaration_only)
+            if default is not None:
+                result += default + '\n'
+        return result
+
+    def count_required_fields(self):
+        '''Returns number of required fields inside this message'''
+        count = 0
+        for f in self.fields:
+            if not isinstance(f, OneOf):
+                if f.rules == 'REQUIRED':
+                    count += 1
+        return count
+
+    def count_all_fields(self):
+        count = 0
+        for f in self.fields:
+            if isinstance(f, OneOf):
+                count += len(f.fields)
+            else:
+                count += 1
+        return count
+
+    def fields_declaration(self):
+        result = 'extern const pb_field_t %s_fields[%d];' % (self.name, self.count_all_fields() + 1)
+        return result
+
+    def fields_definition(self):
+        result = 'const pb_field_t %s_fields[%d] = {\n' % (self.name, self.count_all_fields() + 1)
+
+        prev = None
+        for field in self.ordered_fields:
+            result += field.pb_field_t(prev)
+            result += ',\n'
+            prev = field.get_last_field_name()
+
+        result += '    PB_LAST_FIELD\n};'
+        return result
+
+    def encoded_size(self, dependencies):
+        '''Return the maximum size that this message can take when encoded.
+        If the size cannot be determined, returns None.
+        '''
+        size = EncodedSize(0)
+        for field in self.fields:
+            fsize = field.encoded_size(dependencies)
+            if fsize is None:
+                return None
+            size += fsize
+
+        return size
+
+
+# ---------------------------------------------------------------------------
+#                    Processing of entire .proto files
+# ---------------------------------------------------------------------------
+
+def iterate_messages(desc, names = Names()):
+    '''Recursively find all messages. For each, yield name, DescriptorProto.'''
+    if hasattr(desc, 'message_type'):
+        submsgs = desc.message_type
+    else:
+        submsgs = desc.nested_type
+
+    for submsg in submsgs:
+        sub_names = names + submsg.name
+        yield sub_names, submsg
+
+        for x in iterate_messages(submsg, sub_names):
+            yield x
+
+def iterate_extensions(desc, names = Names()):
+    '''Recursively find all extensions.
+    For each, yield name, FieldDescriptorProto.
+    '''
+    for extension in desc.extension:
+        yield names, extension
+
+    for subname, subdesc in iterate_messages(desc, names):
+        for extension in subdesc.extension:
+            yield subname, extension
+
+def toposort2(data):
+    '''Topological sort.
+    From http://code.activestate.com/recipes/577413-topological-sort/
+    This function is under the MIT license.
+    '''
+    for k, v in list(data.items()):
+        v.discard(k) # Ignore self dependencies
+    extra_items_in_deps = reduce(set.union, list(data.values()), set()) - set(data.keys())
+    data.update(dict([(item, set()) for item in extra_items_in_deps]))
+    while True:
+        ordered = set(item for item,dep in list(data.items()) if not dep)
+        if not ordered:
+            break
+        for item in sorted(ordered):
+            yield item
+        data = dict([(item, (dep - ordered)) for item,dep in list(data.items())
+                if item not in ordered])
+    assert not data, "A cyclic dependency exists amongst %r" % data
+
+def sort_dependencies(messages):
+    '''Sort a list of Messages based on dependencies.'''
+    dependencies = {}
+    message_by_name = {}
+    for message in messages:
+        dependencies[str(message.name)] = set(message.get_dependencies())
+        message_by_name[str(message.name)] = message
+
+    for msgname in toposort2(dependencies):
+        if msgname in message_by_name:
+            yield message_by_name[msgname]
+
+def make_identifier(headername):
+    '''Make #ifndef identifier that contains uppercase A-Z and digits 0-9'''
+    result = ""
+    for c in headername.upper():
+        if c.isalnum():
+            result += c
+        else:
+            result += '_'
+    return result
+
+class ProtoFile:
+    def __init__(self, fdesc, file_options):
+        '''Takes a FileDescriptorProto and parses it.'''
+        self.fdesc = fdesc
+        self.file_options = file_options
+        self.dependencies = {}
+        self.parse()
+
+        # Some of types used in this file probably come from the file itself.
+        # Thus it has implicit dependency on itself.
+        self.add_dependency(self)
+
+    def parse(self):
+        self.enums = []
+        self.messages = []
+        self.extensions = []
+
+        if self.fdesc.package:
+            base_name = Names(self.fdesc.package.split('.'))
+        else:
+            base_name = Names()
+
+        for enum in self.fdesc.enum_type:
+            enum_options = get_nanopb_suboptions(enum, self.file_options, base_name + enum.name)
+            self.enums.append(Enum(base_name, enum, enum_options))
+
+        for names, message in iterate_messages(self.fdesc, base_name):
+            message_options = get_nanopb_suboptions(message, self.file_options, names)
+
+            if message_options.skip_message:
+                continue
+
+            self.messages.append(Message(names, message, message_options))
+            for enum in message.enum_type:
+                enum_options = get_nanopb_suboptions(enum, message_options, names + enum.name)
+                self.enums.append(Enum(names, enum, enum_options))
+
+        for names, extension in iterate_extensions(self.fdesc, base_name):
+            field_options = get_nanopb_suboptions(extension, self.file_options, names + extension.name)
+            if field_options.type != nanopb_pb2.FT_IGNORE:
+                self.extensions.append(ExtensionField(names, extension, field_options))
+
+    def add_dependency(self, other):
+        for enum in other.enums:
+            self.dependencies[str(enum.names)] = enum
+
+        for msg in other.messages:
+            self.dependencies[str(msg.name)] = msg
+
+        # Fix field default values where enum short names are used.
+        for enum in other.enums:
+            if not enum.options.long_names:
+                for message in self.messages:
+                    for field in message.fields:
+                        if field.default in enum.value_longnames:
+                            idx = enum.value_longnames.index(field.default)
+                            field.default = enum.values[idx][0]
+
+        # Fix field data types where enums have negative values.
+        for enum in other.enums:
+            if not enum.has_negative():
+                for message in self.messages:
+                    for field in message.fields:
+                        if field.pbtype == 'ENUM' and field.ctype == enum.names:
+                            field.pbtype = 'UENUM'
+
+    def generate_header(self, includes, headername, options):
+        '''Generate content for a header file.
+        Generates strings, which should be concatenated and stored to file.
+        '''
+
+        yield '/* Automatically generated nanopb header */\n'
+        if options.notimestamp:
+            yield '/* Generated by %s */\n\n' % (nanopb_version)
+        else:
+            yield '/* Generated by %s at %s. */\n\n' % (nanopb_version, time.asctime())
+
+        symbol = make_identifier(headername)
+        yield '#ifndef PB_%s_INCLUDED\n' % symbol
+        yield '#define PB_%s_INCLUDED\n' % symbol
+        try:
+            yield options.libformat % ('pb.h')
+        except TypeError:
+            # no %s specified - use whatever was passed in as options.libformat
+            yield options.libformat
+        yield '\n'
+
+        for incfile in includes:
+            noext = os.path.splitext(incfile)[0]
+            yield options.genformat % (noext + options.extension + '.h')
+            yield '\n'
+
+        yield '/* @@protoc_insertion_point(includes) */\n'
+
+        yield '#if PB_PROTO_HEADER_VERSION != 30\n'
+        yield '#error Regenerate this file with the current version of nanopb generator.\n'
+        yield '#endif\n'
+        yield '\n'
+
+        yield '#ifdef __cplusplus\n'
+        yield 'extern "C" {\n'
+        yield '#endif\n\n'
+
+        if self.enums:
+            yield '/* Enum definitions */\n'
+            for enum in self.enums:
+                yield str(enum) + '\n\n'
+
+        if self.messages:
+            yield '/* Struct definitions */\n'
+            for msg in sort_dependencies(self.messages):
+                yield msg.types()
+                yield str(msg) + '\n\n'
+
+        if self.extensions:
+            yield '/* Extensions */\n'
+            for extension in self.extensions:
+                yield extension.extension_decl()
+            yield '\n'
+
+        if self.messages:
+            yield '/* Default values for struct fields */\n'
+            for msg in self.messages:
+                yield msg.default_decl(True)
+            yield '\n'
+
+            yield '/* Initializer values for message structs */\n'
+            for msg in self.messages:
+                identifier = ('%s_init_default' % msg.name).upper()
+                yield '#define %-40s %s\n' % (identifier, msg.get_initializer(False))
+            for msg in self.messages:
+                identifier = ('%s_init_zero' % msg.name).upper()
+                yield '#define %-40s %s\n' % (identifier, msg.get_initializer(True))
+            yield '\n'
+
+            yield '/* Field tags (for use in manual encoding/decoding) */\n'
+            for msg in sort_dependencies(self.messages):
+                for field in msg.fields:
+                    yield field.tags()
+            for extension in self.extensions:
+                yield extension.tags()
+            yield '\n'
+
+            yield '/* Struct field encoding specification for nanopb */\n'
+            for msg in self.messages:
+                yield msg.fields_declaration() + '\n'
+            yield '\n'
+
+            yield '/* Maximum encoded size of messages (where known) */\n'
+            for msg in self.messages:
+                msize = msg.encoded_size(self.dependencies)
+                identifier = ('%s_size' % msg.name).upper()
+                if msize is not None:
+                    yield '#define %-40s %s\n' % (identifier, str(msize).upper())
+                else:
+                    yield '/* %s depends on runtime parameters */\n' % identifier
+            yield '\n'
+
+            yield '/* Message IDs (where set with "msgid" option) */\n'
+
+            yield '#ifdef PB_MSGID\n'
+            for msg in self.messages:
+                if hasattr(msg,'msgid'):
+                    yield '#define PB_MSG_%d %s\n' % (msg.msgid, msg.name)
+            yield '\n'
+
+            symbol = make_identifier(headername.split('.')[0])
+            yield '#define %s_MESSAGES \\\n' % symbol
+
+            for msg in self.messages:
+                m = "-1"
+                msize = msg.encoded_size(self.dependencies)
+                if msize is not None:
+                    m = msize
+                if hasattr(msg,'msgid'):
+                    yield '\tPB_MSG(%d,%s,%s) \\\n' % (msg.msgid, m, msg.name)
+            yield '\n'
+
+            for msg in self.messages:
+                if hasattr(msg,'msgid'):
+                    yield '#define %s_msgid %d\n' % (msg.name, msg.msgid)
+            yield '\n'
+
+            yield '#endif\n\n'
+
+        yield '#ifdef __cplusplus\n'
+        yield '} /* extern "C" */\n'
+        yield '#endif\n'
+
+        # End of header
+        yield '/* @@protoc_insertion_point(eof) */\n'
+        yield '\n#endif\n'
+
+    def generate_source(self, headername, options):
+        '''Generate content for a source file.'''
+
+        yield '/* Automatically generated nanopb constant definitions */\n'
+        if options.notimestamp:
+            yield '/* Generated by %s */\n\n' % (nanopb_version)
+        else:
+            yield '/* Generated by %s at %s. */\n\n' % (nanopb_version, time.asctime())
+        yield options.genformat % (headername)
+        yield '\n'
+        yield '/* @@protoc_insertion_point(includes) */\n'
+
+        yield '#if PB_PROTO_HEADER_VERSION != 30\n'
+        yield '#error Regenerate this file with the current version of nanopb generator.\n'
+        yield '#endif\n'
+        yield '\n'
+
+        for msg in self.messages:
+            yield msg.default_decl(False)
+
+        yield '\n\n'
+
+        for msg in self.messages:
+            yield msg.fields_definition() + '\n\n'
+
+        for ext in self.extensions:
+            yield ext.extension_def() + '\n'
+
+        # Add checks for numeric limits
+        if self.messages:
+            largest_msg = max(self.messages, key = lambda m: m.count_required_fields())
+            largest_count = largest_msg.count_required_fields()
+            if largest_count > 64:
+                yield '\n/* Check that missing required fields will be properly detected */\n'
+                yield '#if PB_MAX_REQUIRED_FIELDS < %d\n' % largest_count
+                yield '#error Properly detecting missing required fields in %s requires \\\n' % largest_msg.name
+                yield '       setting PB_MAX_REQUIRED_FIELDS to %d or more.\n' % largest_count
+                yield '#endif\n'
+
+        max_field = FieldMaxSize()
+        checks_msgnames = []
+        for msg in self.messages:
+            checks_msgnames.append(msg.name)
+            for field in msg.fields:
+                max_field.extend(field.largest_field_value())
+
+        worst = max_field.worst
+        worst_field = max_field.worst_field
+        checks = max_field.checks
+
+        if worst > 255 or checks:
+            yield '\n/* Check that field information fits in pb_field_t */\n'
+
+            if worst > 65535 or checks:
+                yield '#if !defined(PB_FIELD_32BIT)\n'
+                if worst > 65535:
+                    yield '#error Field descriptor for %s is too large. Define PB_FIELD_32BIT to fix this.\n' % worst_field
+                else:
+                    assertion = ' && '.join(str(c) + ' < 65536' for c in checks)
+                    msgs = '_'.join(str(n) for n in checks_msgnames)
+                    yield '/* If you get an error here, it means that you need to define PB_FIELD_32BIT\n'
+                    yield ' * compile-time option. You can do that in pb.h or on compiler command line.\n'
+                    yield ' * \n'
+                    yield ' * The reason you need to do this is that some of your messages contain tag\n'
+                    yield ' * numbers or field sizes that are larger than what can fit in 8 or 16 bit\n'
+                    yield ' * field descriptors.\n'
+                    yield ' */\n'
+                    yield 'PB_STATIC_ASSERT((%s), YOU_MUST_DEFINE_PB_FIELD_32BIT_FOR_MESSAGES_%s)\n'%(assertion,msgs)
+                yield '#endif\n\n'
+
+            if worst < 65536:
+                yield '#if !defined(PB_FIELD_16BIT) && !defined(PB_FIELD_32BIT)\n'
+                if worst > 255:
+                    yield '#error Field descriptor for %s is too large. Define PB_FIELD_16BIT to fix this.\n' % worst_field
+                else:
+                    assertion = ' && '.join(str(c) + ' < 256' for c in checks)
+                    msgs = '_'.join(str(n) for n in checks_msgnames)
+                    yield '/* If you get an error here, it means that you need to define PB_FIELD_16BIT\n'
+                    yield ' * compile-time option. You can do that in pb.h or on compiler command line.\n'
+                    yield ' * \n'
+                    yield ' * The reason you need to do this is that some of your messages contain tag\n'
+                    yield ' * numbers or field sizes that are larger than what can fit in the default\n'
+                    yield ' * 8 bit descriptors.\n'
+                    yield ' */\n'
+                    yield 'PB_STATIC_ASSERT((%s), YOU_MUST_DEFINE_PB_FIELD_16BIT_FOR_MESSAGES_%s)\n'%(assertion,msgs)
+                yield '#endif\n\n'
+
+        # Add check for sizeof(double)
+        has_double = False
+        for msg in self.messages:
+            for field in msg.fields:
+                if field.ctype == 'double':
+                    has_double = True
+
+        if has_double:
+            yield '\n'
+            yield '/* On some platforms (such as AVR), double is really float.\n'
+            yield ' * These are not directly supported by nanopb, but see example_avr_double.\n'
+            yield ' * To get rid of this error, remove any double fields from your .proto.\n'
+            yield ' */\n'
+            yield 'PB_STATIC_ASSERT(sizeof(double) == 8, DOUBLE_MUST_BE_8_BYTES)\n'
+
+        yield '\n'
+        yield '/* @@protoc_insertion_point(eof) */\n'
+
+# ---------------------------------------------------------------------------
+#                    Options parsing for the .proto files
+# ---------------------------------------------------------------------------
+
+from fnmatch import fnmatch
+
+def read_options_file(infile):
+    '''Parse a separate options file to list:
+        [(namemask, options), ...]
+    '''
+    results = []
+    data = infile.read()
+    data = re.sub('/\*.*?\*/', '', data, flags = re.MULTILINE)
+    data = re.sub('//.*?$', '', data, flags = re.MULTILINE)
+    data = re.sub('#.*?$', '', data, flags = re.MULTILINE)
+    for i, line in enumerate(data.split('\n')):
+        line = line.strip()
+        if not line:
+            continue
+
+        parts = line.split(None, 1)
+
+        if len(parts) < 2:
+            sys.stderr.write("%s:%d: " % (infile.name, i + 1) +
+                             "Option lines should have space between field name and options. " +
+                             "Skipping line: '%s'\n" % line)
+            continue
+
+        opts = nanopb_pb2.NanoPBOptions()
+
+        try:
+            text_format.Merge(parts[1], opts)
+        except Exception as e:
+            sys.stderr.write("%s:%d: " % (infile.name, i + 1) +
+                             "Unparseable option line: '%s'. " % line +
+                             "Error: %s\n" % str(e))
+            continue
+        results.append((parts[0], opts))
+
+    return results
+
+class Globals:
+    '''Ugly global variables, should find a good way to pass these.'''
+    verbose_options = False
+    separate_options = []
+    matched_namemasks = set()
+
+def get_nanopb_suboptions(subdesc, options, name):
+    '''Get copy of options, and merge information from subdesc.'''
+    new_options = nanopb_pb2.NanoPBOptions()
+    new_options.CopyFrom(options)
+
+    # Handle options defined in a separate file
+    dotname = '.'.join(name.parts)
+    for namemask, options in Globals.separate_options:
+        if fnmatch(dotname, namemask):
+            Globals.matched_namemasks.add(namemask)
+            new_options.MergeFrom(options)
+
+    # Handle options defined in .proto
+    if isinstance(subdesc.options, descriptor.FieldOptions):
+        ext_type = nanopb_pb2.nanopb
+    elif isinstance(subdesc.options, descriptor.FileOptions):
+        ext_type = nanopb_pb2.nanopb_fileopt
+    elif isinstance(subdesc.options, descriptor.MessageOptions):
+        ext_type = nanopb_pb2.nanopb_msgopt
+    elif isinstance(subdesc.options, descriptor.EnumOptions):
+        ext_type = nanopb_pb2.nanopb_enumopt
+    else:
+        raise Exception("Unknown options type")
+
+    if subdesc.options.HasExtension(ext_type):
+        ext = subdesc.options.Extensions[ext_type]
+        new_options.MergeFrom(ext)
+
+    if Globals.verbose_options:
+        sys.stderr.write("Options for " + dotname + ": ")
+        sys.stderr.write(text_format.MessageToString(new_options) + "\n")
+
+    return new_options
+
+
+# ---------------------------------------------------------------------------
+#                         Command line interface
+# ---------------------------------------------------------------------------
+
+import sys
+import os.path
+from optparse import OptionParser
+
+optparser = OptionParser(
+    usage = "Usage: nanopb_generator.py [options] file.pb ...",
+    epilog = "Compile file.pb from file.proto by: 'protoc -ofile.pb file.proto'. " +
+             "Output will be written to file.pb.h and file.pb.c.")
+optparser.add_option("-x", dest="exclude", metavar="FILE", action="append", default=[],
+    help="Exclude file from generated #include list.")
+optparser.add_option("-e", "--extension", dest="extension", metavar="EXTENSION", default=".pb",
+    help="Set extension to use instead of '.pb' for generated files. [default: %default]")
+optparser.add_option("-f", "--options-file", dest="options_file", metavar="FILE", default="%s.options",
+    help="Set name of a separate generator options file.")
+optparser.add_option("-I", "--options-path", dest="options_path", metavar="DIR",
+    action="append", default = [],
+    help="Search for .options files additionally in this path")
+optparser.add_option("-D", "--output-dir", dest="output_dir",
+                     metavar="OUTPUTDIR", default=None,
+                     help="Output directory of .pb.h and .pb.c files")
+optparser.add_option("-Q", "--generated-include-format", dest="genformat",
+    metavar="FORMAT", default='#include "%s"\n',
+    help="Set format string to use for including other .pb.h files. [default: %default]")
+optparser.add_option("-L", "--library-include-format", dest="libformat",
+    metavar="FORMAT", default='#include <%s>\n',
+    help="Set format string to use for including the nanopb pb.h header. [default: %default]")
+optparser.add_option("-T", "--no-timestamp", dest="notimestamp", action="store_true", default=False,
+    help="Don't add timestamp to .pb.h and .pb.c preambles")
+optparser.add_option("-q", "--quiet", dest="quiet", action="store_true", default=False,
+    help="Don't print anything except errors.")
+optparser.add_option("-v", "--verbose", dest="verbose", action="store_true", default=False,
+    help="Print more information.")
+optparser.add_option("-s", dest="settings", metavar="OPTION:VALUE", action="append", default=[],
+    help="Set generator option (max_size, max_count etc.).")
+
+def parse_file(filename, fdesc, options):
+    '''Parse a single file. Returns a ProtoFile instance.'''
+    toplevel_options = nanopb_pb2.NanoPBOptions()
+    for s in options.settings:
+        text_format.Merge(s, toplevel_options)
+
+    if not fdesc:
+        data = open(filename, 'rb').read()
+        fdesc = descriptor.FileDescriptorSet.FromString(data).file[0]
+
+    # Check if there is a separate .options file
+    had_abspath = False
+    try:
+        optfilename = options.options_file % os.path.splitext(filename)[0]
+    except TypeError:
+        # No %s specified, use the filename as-is
+        optfilename = options.options_file
+        had_abspath = True
+
+    paths = ['.'] + options.options_path
+    for p in paths:
+        if os.path.isfile(os.path.join(p, optfilename)):
+            optfilename = os.path.join(p, optfilename)
+            if options.verbose:
+                sys.stderr.write('Reading options from ' + optfilename + '\n')
+            Globals.separate_options = read_options_file(open(optfilename, "rU"))
+            break
+    else:
+        # If we are given a full filename and it does not exist, give an error.
+        # However, don't give error when we automatically look for .options file
+        # with the same name as .proto.
+        if options.verbose or had_abspath:
+            sys.stderr.write('Options file not found: ' + optfilename + '\n')
+        Globals.separate_options = []
+
+    Globals.matched_namemasks = set()
+
+    # Parse the file
+    file_options = get_nanopb_suboptions(fdesc, toplevel_options, Names([filename]))
+    f = ProtoFile(fdesc, file_options)
+    f.optfilename = optfilename
+
+    return f
+
+def process_file(filename, fdesc, options, other_files = {}):
+    '''Process a single file.
+    filename: The full path to the .proto or .pb source file, as string.
+    fdesc: The loaded FileDescriptorSet, or None to read from the input file.
+    options: Command line options as they come from OptionsParser.
+
+    Returns a dict:
+        {'headername': Name of header file,
+         'headerdata': Data for the .h header file,
+         'sourcename': Name of the source code file,
+         'sourcedata': Data for the .c source code file
+        }
+    '''
+    f = parse_file(filename, fdesc, options)
+
+    # Provide dependencies if available
+    for dep in f.fdesc.dependency:
+        if dep in other_files:
+            f.add_dependency(other_files[dep])
+
+    # Decide the file names
+    noext = os.path.splitext(filename)[0]
+    headername = noext + options.extension + '.h'
+    sourcename = noext + options.extension + '.c'
+    headerbasename = os.path.basename(headername)
+
+    # List of .proto files that should not be included in the C header file
+    # even if they are mentioned in the source .proto.
+    excludes = ['nanopb.proto', 'google/protobuf/descriptor.proto'] + options.exclude
+    includes = [d for d in f.fdesc.dependency if d not in excludes]
+
+    headerdata = ''.join(f.generate_header(includes, headerbasename, options))
+    sourcedata = ''.join(f.generate_source(headerbasename, options))
+
+    # Check if there were any lines in .options that did not match a member
+    unmatched = [n for n,o in Globals.separate_options if n not in Globals.matched_namemasks]
+    if unmatched and not options.quiet:
+        sys.stderr.write("Following patterns in " + f.optfilename + " did not match any fields: "
+                         + ', '.join(unmatched) + "\n")
+        if not Globals.verbose_options:
+            sys.stderr.write("Use  protoc --nanopb-out=-v:.   to see a list of the field names.\n")
+
+    return {'headername': headername, 'headerdata': headerdata,
+            'sourcename': sourcename, 'sourcedata': sourcedata}
+
+def main_cli():
+    '''Main function when invoked directly from the command line.'''
+
+    options, filenames = optparser.parse_args()
+
+    if not filenames:
+        optparser.print_help()
+        sys.exit(1)
+
+    if options.quiet:
+        options.verbose = False
+
+    if options.output_dir and not os.path.exists(options.output_dir):
+        optparser.print_help()
+        sys.stderr.write("\noutput_dir does not exist: %s\n" % options.output_dir)
+        sys.exit(1)
+
+
+    Globals.verbose_options = options.verbose
+    for filename in filenames:
+        results = process_file(filename, None, options)
+
+        base_dir = options.output_dir or ''
+        to_write = [
+            (os.path.join(base_dir, results['headername']), results['headerdata']),
+            (os.path.join(base_dir, results['sourcename']), results['sourcedata']),
+        ]
+
+        if not options.quiet:
+            paths = " and ".join([x[0] for x in to_write])
+            sys.stderr.write("Writing to %s\n" % paths)
+
+        for path, data in to_write:
+            with open(path, 'w') as f:
+                f.write(data)
+
+def main_plugin():
+    '''Main function when invoked as a protoc plugin.'''
+
+    import io, sys
+    if sys.platform == "win32":
+        import os, msvcrt
+        # Set stdin and stdout to binary mode
+        msvcrt.setmode(sys.stdin.fileno(), os.O_BINARY)
+        msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
+
+    data = io.open(sys.stdin.fileno(), "rb").read()
+
+    request = plugin_pb2.CodeGeneratorRequest.FromString(data)
+
+    try:
+        # Versions of Python prior to 2.7.3 do not support unicode
+        # input to shlex.split(). Try to convert to str if possible.
+        params = str(request.parameter)
+    except UnicodeEncodeError:
+        params = request.parameter
+
+    import shlex
+    args = shlex.split(params)
+    options, dummy = optparser.parse_args(args)
+
+    Globals.verbose_options = options.verbose
+
+    response = plugin_pb2.CodeGeneratorResponse()
+
+    # Google's protoc does not currently indicate the full path of proto files.
+    # Instead always add the main file path to the search dirs, that works for
+    # the common case.
+    import os.path
+    options.options_path.append(os.path.dirname(request.file_to_generate[0]))
+
+    # Process any include files first, in order to have them
+    # available as dependencies
+    other_files = {}
+    for fdesc in request.proto_file:
+        other_files[fdesc.name] = parse_file(fdesc.name, fdesc, options)
+
+    for filename in request.file_to_generate:
+        for fdesc in request.proto_file:
+            if fdesc.name == filename:
+                results = process_file(filename, fdesc, options, other_files)
+
+                f = response.file.add()
+                f.name = results['headername']
+                f.content = results['headerdata']
+
+                f = response.file.add()
+                f.name = results['sourcename']
+                f.content = results['sourcedata']
+
+    io.open(sys.stdout.fileno(), "wb").write(response.SerializeToString())
+
+if __name__ == '__main__':
+    # Check if we are running as a plugin under protoc
+    if 'protoc-gen-' in sys.argv[0] or '--protoc-plugin' in sys.argv:
+        main_plugin()
+    else:
+        main_cli()
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/Makefile b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/Makefile
new file mode 100644
index 0000000..89bfe52
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/Makefile
@@ -0,0 +1,4 @@
+all: nanopb_pb2.py plugin_pb2.py
+
+%_pb2.py: %.proto
+	protoc --python_out=. $<
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/__init__.py b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/__init__.py
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/google/protobuf/descriptor.proto b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/google/protobuf/descriptor.proto
new file mode 100644
index 0000000..e17c0cc
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/google/protobuf/descriptor.proto
@@ -0,0 +1,714 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Author: kenton@google.com (Kenton Varda)
+//  Based on original Protocol Buffers design by
+//  Sanjay Ghemawat, Jeff Dean, and others.
+//
+// The messages in this file describe the definitions found in .proto files.
+// A valid .proto file can be translated directly to a FileDescriptorProto
+// without any other information (e.g. without reading its imports).
+
+
+syntax = "proto2";
+
+package google.protobuf;
+option java_package = "com.google.protobuf";
+option java_outer_classname = "DescriptorProtos";
+
+// descriptor.proto must be optimized for speed because reflection-based
+// algorithms don't work during bootstrapping.
+option optimize_for = SPEED;
+
+// The protocol compiler can output a FileDescriptorSet containing the .proto
+// files it parses.
+message FileDescriptorSet {
+  repeated FileDescriptorProto file = 1;
+}
+
+// Describes a complete .proto file.
+message FileDescriptorProto {
+  optional string name = 1;       // file name, relative to root of source tree
+  optional string package = 2;    // e.g. "foo", "foo.bar", etc.
+
+  // Names of files imported by this file.
+  repeated string dependency = 3;
+  // Indexes of the public imported files in the dependency list above.
+  repeated int32 public_dependency = 10;
+  // Indexes of the weak imported files in the dependency list.
+  // For Google-internal migration only. Do not use.
+  repeated int32 weak_dependency = 11;
+
+  // All top-level definitions in this file.
+  repeated DescriptorProto message_type = 4;
+  repeated EnumDescriptorProto enum_type = 5;
+  repeated ServiceDescriptorProto service = 6;
+  repeated FieldDescriptorProto extension = 7;
+
+  optional FileOptions options = 8;
+
+  // This field contains optional information about the original source code.
+  // You may safely remove this entire field without harming runtime
+  // functionality of the descriptors -- the information is needed only by
+  // development tools.
+  optional SourceCodeInfo source_code_info = 9;
+
+  // The syntax of the proto file.
+  // The supported values are "proto2" and "proto3".
+  optional string syntax = 12;
+}
+
+// Describes a message type.
+message DescriptorProto {
+  optional string name = 1;
+
+  repeated FieldDescriptorProto field = 2;
+  repeated FieldDescriptorProto extension = 6;
+
+  repeated DescriptorProto nested_type = 3;
+  repeated EnumDescriptorProto enum_type = 4;
+
+  message ExtensionRange {
+    optional int32 start = 1;
+    optional int32 end = 2;
+  }
+  repeated ExtensionRange extension_range = 5;
+
+  repeated OneofDescriptorProto oneof_decl = 8;
+
+  optional MessageOptions options = 7;
+}
+
+// Describes a field within a message.
+message FieldDescriptorProto {
+  enum Type {
+    // 0 is reserved for errors.
+    // Order is weird for historical reasons.
+    TYPE_DOUBLE         = 1;
+    TYPE_FLOAT          = 2;
+    // Not ZigZag encoded.  Negative numbers take 10 bytes.  Use TYPE_SINT64 if
+    // negative values are likely.
+    TYPE_INT64          = 3;
+    TYPE_UINT64         = 4;
+    // Not ZigZag encoded.  Negative numbers take 10 bytes.  Use TYPE_SINT32 if
+    // negative values are likely.
+    TYPE_INT32          = 5;
+    TYPE_FIXED64        = 6;
+    TYPE_FIXED32        = 7;
+    TYPE_BOOL           = 8;
+    TYPE_STRING         = 9;
+    TYPE_GROUP          = 10;  // Tag-delimited aggregate.
+    TYPE_MESSAGE        = 11;  // Length-delimited aggregate.
+
+    // New in version 2.
+    TYPE_BYTES          = 12;
+    TYPE_UINT32         = 13;
+    TYPE_ENUM           = 14;
+    TYPE_SFIXED32       = 15;
+    TYPE_SFIXED64       = 16;
+    TYPE_SINT32         = 17;  // Uses ZigZag encoding.
+    TYPE_SINT64         = 18;  // Uses ZigZag encoding.
+  };
+
+  enum Label {
+    // 0 is reserved for errors
+    LABEL_OPTIONAL      = 1;
+    LABEL_REQUIRED      = 2;
+    LABEL_REPEATED      = 3;
+    // TODO(sanjay): Should we add LABEL_MAP?
+  };
+
+  optional string name = 1;
+  optional int32 number = 3;
+  optional Label label = 4;
+
+  // If type_name is set, this need not be set.  If both this and type_name
+  // are set, this must be one of TYPE_ENUM, TYPE_MESSAGE or TYPE_GROUP.
+  optional Type type = 5;
+
+  // For message and enum types, this is the name of the type.  If the name
+  // starts with a '.', it is fully-qualified.  Otherwise, C++-like scoping
+  // rules are used to find the type (i.e. first the nested types within this
+  // message are searched, then within the parent, on up to the root
+  // namespace).
+  optional string type_name = 6;
+
+  // For extensions, this is the name of the type being extended.  It is
+  // resolved in the same manner as type_name.
+  optional string extendee = 2;
+
+  // For numeric types, contains the original text representation of the value.
+  // For booleans, "true" or "false".
+  // For strings, contains the default text contents (not escaped in any way).
+  // For bytes, contains the C escaped value.  All bytes >= 128 are escaped.
+  // TODO(kenton):  Base-64 encode?
+  optional string default_value = 7;
+
+  // If set, gives the index of a oneof in the containing type's oneof_decl
+  // list.  This field is a member of that oneof.  Extensions of a oneof should
+  // not set this since the oneof to which they belong will be inferred based
+  // on the extension range containing the extension's field number.
+  optional int32 oneof_index = 9;
+
+  optional FieldOptions options = 8;
+}
+
+// Describes a oneof.
+message OneofDescriptorProto {
+  optional string name = 1;
+}
+
+// Describes an enum type.
+message EnumDescriptorProto {
+  optional string name = 1;
+
+  repeated EnumValueDescriptorProto value = 2;
+
+  optional EnumOptions options = 3;
+}
+
+// Describes a value within an enum.
+message EnumValueDescriptorProto {
+  optional string name = 1;
+  optional int32 number = 2;
+
+  optional EnumValueOptions options = 3;
+}
+
+// Describes a service.
+message ServiceDescriptorProto {
+  optional string name = 1;
+  repeated MethodDescriptorProto method = 2;
+
+  optional ServiceOptions options = 3;
+}
+
+// Describes a method of a service.
+message MethodDescriptorProto {
+  optional string name = 1;
+
+  // Input and output type names.  These are resolved in the same way as
+  // FieldDescriptorProto.type_name, but must refer to a message type.
+  optional string input_type = 2;
+  optional string output_type = 3;
+
+  optional MethodOptions options = 4;
+
+  // Identifies if client streams multiple client messages
+  optional bool client_streaming = 5 [default=false];
+  // Identifies if server streams multiple server messages
+  optional bool server_streaming = 6 [default=false];
+}
+
+
+// ===================================================================
+// Options
+
+// Each of the definitions above may have "options" attached.  These are
+// just annotations which may cause code to be generated slightly differently
+// or may contain hints for code that manipulates protocol messages.
+//
+// Clients may define custom options as extensions of the *Options messages.
+// These extensions may not yet be known at parsing time, so the parser cannot
+// store the values in them.  Instead it stores them in a field in the *Options
+// message called uninterpreted_option. This field must have the same name
+// across all *Options messages. We then use this field to populate the
+// extensions when we build a descriptor, at which point all protos have been
+// parsed and so all extensions are known.
+//
+// Extension numbers for custom options may be chosen as follows:
+// * For options which will only be used within a single application or
+//   organization, or for experimental options, use field numbers 50000
+//   through 99999.  It is up to you to ensure that you do not use the
+//   same number for multiple options.
+// * For options which will be published and used publicly by multiple
+//   independent entities, e-mail protobuf-global-extension-registry@google.com
+//   to reserve extension numbers. Simply provide your project name (e.g.
+//   Object-C plugin) and your porject website (if available) -- there's no need
+//   to explain how you intend to use them. Usually you only need one extension
+//   number. You can declare multiple options with only one extension number by
+//   putting them in a sub-message. See the Custom Options section of the docs
+//   for examples:
+//   https://developers.google.com/protocol-buffers/docs/proto#options
+//   If this turns out to be popular, a web service will be set up
+//   to automatically assign option numbers.
+
+
+message FileOptions {
+
+  // Sets the Java package where classes generated from this .proto will be
+  // placed.  By default, the proto package is used, but this is often
+  // inappropriate because proto packages do not normally start with backwards
+  // domain names.
+  optional string java_package = 1;
+
+
+  // If set, all the classes from the .proto file are wrapped in a single
+  // outer class with the given name.  This applies to both Proto1
+  // (equivalent to the old "--one_java_file" option) and Proto2 (where
+  // a .proto always translates to a single class, but you may want to
+  // explicitly choose the class name).
+  optional string java_outer_classname = 8;
+
+  // If set true, then the Java code generator will generate a separate .java
+  // file for each top-level message, enum, and service defined in the .proto
+  // file.  Thus, these types will *not* be nested inside the outer class
+  // named by java_outer_classname.  However, the outer class will still be
+  // generated to contain the file's getDescriptor() method as well as any
+  // top-level extensions defined in the file.
+  optional bool java_multiple_files = 10 [default=false];
+
+  // If set true, then the Java code generator will generate equals() and
+  // hashCode() methods for all messages defined in the .proto file.
+  // - In the full runtime, this is purely a speed optimization, as the
+  // AbstractMessage base class includes reflection-based implementations of
+  // these methods.
+  //- In the lite runtime, setting this option changes the semantics of
+  // equals() and hashCode() to more closely match those of the full runtime;
+  // the generated methods compute their results based on field values rather
+  // than object identity. (Implementations should not assume that hashcodes
+  // will be consistent across runtimes or versions of the protocol compiler.)
+  optional bool java_generate_equals_and_hash = 20 [default=false];
+
+  // If set true, then the Java2 code generator will generate code that
+  // throws an exception whenever an attempt is made to assign a non-UTF-8
+  // byte sequence to a string field.
+  // Message reflection will do the same.
+  // However, an extension field still accepts non-UTF-8 byte sequences.
+  // This option has no effect on when used with the lite runtime.
+  optional bool java_string_check_utf8 = 27 [default=false];
+
+
+  // Generated classes can be optimized for speed or code size.
+  enum OptimizeMode {
+    SPEED = 1;        // Generate complete code for parsing, serialization,
+                      // etc.
+    CODE_SIZE = 2;    // Use ReflectionOps to implement these methods.
+    LITE_RUNTIME = 3; // Generate code using MessageLite and the lite runtime.
+  }
+  optional OptimizeMode optimize_for = 9 [default=SPEED];
+
+  // Sets the Go package where structs generated from this .proto will be
+  // placed. If omitted, the Go package will be derived from the following:
+  //   - The basename of the package import path, if provided.
+  //   - Otherwise, the package statement in the .proto file, if present.
+  //   - Otherwise, the basename of the .proto file, without extension.
+  optional string go_package = 11;
+
+
+
+  // Should generic services be generated in each language?  "Generic" services
+  // are not specific to any particular RPC system.  They are generated by the
+  // main code generators in each language (without additional plugins).
+  // Generic services were the only kind of service generation supported by
+  // early versions of google.protobuf.
+  //
+  // Generic services are now considered deprecated in favor of using plugins
+  // that generate code specific to your particular RPC system.  Therefore,
+  // these default to false.  Old code which depends on generic services should
+  // explicitly set them to true.
+  optional bool cc_generic_services = 16 [default=false];
+  optional bool java_generic_services = 17 [default=false];
+  optional bool py_generic_services = 18 [default=false];
+
+  // Is this file deprecated?
+  // Depending on the target platform, this can emit Deprecated annotations
+  // for everything in the file, or it will be completely ignored; in the very
+  // least, this is a formalization for deprecating files.
+  optional bool deprecated = 23 [default=false];
+
+
+  // Enables the use of arenas for the proto messages in this file. This applies
+  // only to generated classes for C++.
+  optional bool cc_enable_arenas = 31 [default=false];
+
+
+  // The parser stores options it doesn't recognize here. See above.
+  repeated UninterpretedOption uninterpreted_option = 999;
+
+  // Clients can define custom options in extensions of this message. See above.
+  extensions 1000 to max;
+}
+
+message MessageOptions {
+  // Set true to use the old proto1 MessageSet wire format for extensions.
+  // This is provided for backwards-compatibility with the MessageSet wire
+  // format.  You should not use this for any other reason:  It's less
+  // efficient, has fewer features, and is more complicated.
+  //
+  // The message must be defined exactly as follows:
+  //   message Foo {
+  //     option message_set_wire_format = true;
+  //     extensions 4 to max;
+  //   }
+  // Note that the message cannot have any defined fields; MessageSets only
+  // have extensions.
+  //
+  // All extensions of your type must be singular messages; e.g. they cannot
+  // be int32s, enums, or repeated messages.
+  //
+  // Because this is an option, the above two restrictions are not enforced by
+  // the protocol compiler.
+  optional bool message_set_wire_format = 1 [default=false];
+
+  // Disables the generation of the standard "descriptor()" accessor, which can
+  // conflict with a field of the same name.  This is meant to make migration
+  // from proto1 easier; new code should avoid fields named "descriptor".
+  optional bool no_standard_descriptor_accessor = 2 [default=false];
+
+  // Is this message deprecated?
+  // Depending on the target platform, this can emit Deprecated annotations
+  // for the message, or it will be completely ignored; in the very least,
+  // this is a formalization for deprecating messages.
+  optional bool deprecated = 3 [default=false];
+
+  // Whether the message is an automatically generated map entry type for the
+  // maps field.
+  //
+  // For maps fields:
+  //     map<KeyType, ValueType> map_field = 1;
+  // The parsed descriptor looks like:
+  //     message MapFieldEntry {
+  //         option map_entry = true;
+  //         optional KeyType key = 1;
+  //         optional ValueType value = 2;
+  //     }
+  //     repeated MapFieldEntry map_field = 1;
+  //
+  // Implementations may choose not to generate the map_entry=true message, but
+  // use a native map in the target language to hold the keys and values.
+  // The reflection APIs in such implementions still need to work as
+  // if the field is a repeated message field.
+  //
+  // NOTE: Do not set the option in .proto files. Always use the maps syntax
+  // instead. The option should only be implicitly set by the proto compiler
+  // parser.
+  optional bool map_entry = 7;
+
+  // The parser stores options it doesn't recognize here. See above.
+  repeated UninterpretedOption uninterpreted_option = 999;
+
+  // Clients can define custom options in extensions of this message. See above.
+  extensions 1000 to max;
+}
+
+message FieldOptions {
+  // The ctype option instructs the C++ code generator to use a different
+  // representation of the field than it normally would.  See the specific
+  // options below.  This option is not yet implemented in the open source
+  // release -- sorry, we'll try to include it in a future version!
+  optional CType ctype = 1 [default = STRING];
+  enum CType {
+    // Default mode.
+    STRING = 0;
+
+    CORD = 1;
+
+    STRING_PIECE = 2;
+  }
+  // The packed option can be enabled for repeated primitive fields to enable
+  // a more efficient representation on the wire. Rather than repeatedly
+  // writing the tag and type for each element, the entire array is encoded as
+  // a single length-delimited blob.
+  optional bool packed = 2;
+
+
+
+  // Should this field be parsed lazily?  Lazy applies only to message-type
+  // fields.  It means that when the outer message is initially parsed, the
+  // inner message's contents will not be parsed but instead stored in encoded
+  // form.  The inner message will actually be parsed when it is first accessed.
+  //
+  // This is only a hint.  Implementations are free to choose whether to use
+  // eager or lazy parsing regardless of the value of this option.  However,
+  // setting this option true suggests that the protocol author believes that
+  // using lazy parsing on this field is worth the additional bookkeeping
+  // overhead typically needed to implement it.
+  //
+  // This option does not affect the public interface of any generated code;
+  // all method signatures remain the same.  Furthermore, thread-safety of the
+  // interface is not affected by this option; const methods remain safe to
+  // call from multiple threads concurrently, while non-const methods continue
+  // to require exclusive access.
+  //
+  //
+  // Note that implementations may choose not to check required fields within
+  // a lazy sub-message.  That is, calling IsInitialized() on the outher message
+  // may return true even if the inner message has missing required fields.
+  // This is necessary because otherwise the inner message would have to be
+  // parsed in order to perform the check, defeating the purpose of lazy
+  // parsing.  An implementation which chooses not to check required fields
+  // must be consistent about it.  That is, for any particular sub-message, the
+  // implementation must either *always* check its required fields, or *never*
+  // check its required fields, regardless of whether or not the message has
+  // been parsed.
+  optional bool lazy = 5 [default=false];
+
+  // Is this field deprecated?
+  // Depending on the target platform, this can emit Deprecated annotations
+  // for accessors, or it will be completely ignored; in the very least, this
+  // is a formalization for deprecating fields.
+  optional bool deprecated = 3 [default=false];
+
+  // For Google-internal migration only. Do not use.
+  optional bool weak = 10 [default=false];
+
+
+
+  // The parser stores options it doesn't recognize here. See above.
+  repeated UninterpretedOption uninterpreted_option = 999;
+
+  // Clients can define custom options in extensions of this message. See above.
+  extensions 1000 to max;
+}
+
+message EnumOptions {
+
+  // Set this option to true to allow mapping different tag names to the same
+  // value.
+  optional bool allow_alias = 2;
+
+  // Is this enum deprecated?
+  // Depending on the target platform, this can emit Deprecated annotations
+  // for the enum, or it will be completely ignored; in the very least, this
+  // is a formalization for deprecating enums.
+  optional bool deprecated = 3 [default=false];
+
+  // The parser stores options it doesn't recognize here. See above.
+  repeated UninterpretedOption uninterpreted_option = 999;
+
+  // Clients can define custom options in extensions of this message. See above.
+  extensions 1000 to max;
+}
+
+message EnumValueOptions {
+  // Is this enum value deprecated?
+  // Depending on the target platform, this can emit Deprecated annotations
+  // for the enum value, or it will be completely ignored; in the very least,
+  // this is a formalization for deprecating enum values.
+  optional bool deprecated = 1 [default=false];
+
+  // The parser stores options it doesn't recognize here. See above.
+  repeated UninterpretedOption uninterpreted_option = 999;
+
+  // Clients can define custom options in extensions of this message. See above.
+  extensions 1000 to max;
+}
+
+message ServiceOptions {
+
+  // Note:  Field numbers 1 through 32 are reserved for Google's internal RPC
+  //   framework.  We apologize for hoarding these numbers to ourselves, but
+  //   we were already using them long before we decided to release Protocol
+  //   Buffers.
+
+  // Is this service deprecated?
+  // Depending on the target platform, this can emit Deprecated annotations
+  // for the service, or it will be completely ignored; in the very least,
+  // this is a formalization for deprecating services.
+  optional bool deprecated = 33 [default=false];
+
+  // The parser stores options it doesn't recognize here. See above.
+  repeated UninterpretedOption uninterpreted_option = 999;
+
+  // Clients can define custom options in extensions of this message. See above.
+  extensions 1000 to max;
+}
+
+message MethodOptions {
+
+  // Note:  Field numbers 1 through 32 are reserved for Google's internal RPC
+  //   framework.  We apologize for hoarding these numbers to ourselves, but
+  //   we were already using them long before we decided to release Protocol
+  //   Buffers.
+
+  // Is this method deprecated?
+  // Depending on the target platform, this can emit Deprecated annotations
+  // for the method, or it will be completely ignored; in the very least,
+  // this is a formalization for deprecating methods.
+  optional bool deprecated = 33 [default=false];
+
+  // The parser stores options it doesn't recognize here. See above.
+  repeated UninterpretedOption uninterpreted_option = 999;
+
+  // Clients can define custom options in extensions of this message. See above.
+  extensions 1000 to max;
+}
+
+
+// A message representing a option the parser does not recognize. This only
+// appears in options protos created by the compiler::Parser class.
+// DescriptorPool resolves these when building Descriptor objects. Therefore,
+// options protos in descriptor objects (e.g. returned by Descriptor::options(),
+// or produced by Descriptor::CopyTo()) will never have UninterpretedOptions
+// in them.
+message UninterpretedOption {
+  // The name of the uninterpreted option.  Each string represents a segment in
+  // a dot-separated name.  is_extension is true iff a segment represents an
+  // extension (denoted with parentheses in options specs in .proto files).
+  // E.g.,{ ["foo", false], ["bar.baz", true], ["qux", false] } represents
+  // "foo.(bar.baz).qux".
+  message NamePart {
+    required string name_part = 1;
+    required bool is_extension = 2;
+  }
+  repeated NamePart name = 2;
+
+  // The value of the uninterpreted option, in whatever type the tokenizer
+  // identified it as during parsing. Exactly one of these should be set.
+  optional string identifier_value = 3;
+  optional uint64 positive_int_value = 4;
+  optional int64 negative_int_value = 5;
+  optional double double_value = 6;
+  optional bytes string_value = 7;
+  optional string aggregate_value = 8;
+}
+
+// ===================================================================
+// Optional source code info
+
+// Encapsulates information about the original source file from which a
+// FileDescriptorProto was generated.
+message SourceCodeInfo {
+  // A Location identifies a piece of source code in a .proto file which
+  // corresponds to a particular definition.  This information is intended
+  // to be useful to IDEs, code indexers, documentation generators, and similar
+  // tools.
+  //
+  // For example, say we have a file like:
+  //   message Foo {
+  //     optional string foo = 1;
+  //   }
+  // Let's look at just the field definition:
+  //   optional string foo = 1;
+  //   ^       ^^     ^^  ^  ^^^
+  //   a       bc     de  f  ghi
+  // We have the following locations:
+  //   span   path               represents
+  //   [a,i)  [ 4, 0, 2, 0 ]     The whole field definition.
+  //   [a,b)  [ 4, 0, 2, 0, 4 ]  The label (optional).
+  //   [c,d)  [ 4, 0, 2, 0, 5 ]  The type (string).
+  //   [e,f)  [ 4, 0, 2, 0, 1 ]  The name (foo).
+  //   [g,h)  [ 4, 0, 2, 0, 3 ]  The number (1).
+  //
+  // Notes:
+  // - A location may refer to a repeated field itself (i.e. not to any
+  //   particular index within it).  This is used whenever a set of elements are
+  //   logically enclosed in a single code segment.  For example, an entire
+  //   extend block (possibly containing multiple extension definitions) will
+  //   have an outer location whose path refers to the "extensions" repeated
+  //   field without an index.
+  // - Multiple locations may have the same path.  This happens when a single
+  //   logical declaration is spread out across multiple places.  The most
+  //   obvious example is the "extend" block again -- there may be multiple
+  //   extend blocks in the same scope, each of which will have the same path.
+  // - A location's span is not always a subset of its parent's span.  For
+  //   example, the "extendee" of an extension declaration appears at the
+  //   beginning of the "extend" block and is shared by all extensions within
+  //   the block.
+  // - Just because a location's span is a subset of some other location's span
+  //   does not mean that it is a descendent.  For example, a "group" defines
+  //   both a type and a field in a single declaration.  Thus, the locations
+  //   corresponding to the type and field and their components will overlap.
+  // - Code which tries to interpret locations should probably be designed to
+  //   ignore those that it doesn't understand, as more types of locations could
+  //   be recorded in the future.
+  repeated Location location = 1;
+  message Location {
+    // Identifies which part of the FileDescriptorProto was defined at this
+    // location.
+    //
+    // Each element is a field number or an index.  They form a path from
+    // the root FileDescriptorProto to the place where the definition.  For
+    // example, this path:
+    //   [ 4, 3, 2, 7, 1 ]
+    // refers to:
+    //   file.message_type(3)  // 4, 3
+    //       .field(7)         // 2, 7
+    //       .name()           // 1
+    // This is because FileDescriptorProto.message_type has field number 4:
+    //   repeated DescriptorProto message_type = 4;
+    // and DescriptorProto.field has field number 2:
+    //   repeated FieldDescriptorProto field = 2;
+    // and FieldDescriptorProto.name has field number 1:
+    //   optional string name = 1;
+    //
+    // Thus, the above path gives the location of a field name.  If we removed
+    // the last element:
+    //   [ 4, 3, 2, 7 ]
+    // this path refers to the whole field declaration (from the beginning
+    // of the label to the terminating semicolon).
+    repeated int32 path = 1 [packed=true];
+
+    // Always has exactly three or four elements: start line, start column,
+    // end line (optional, otherwise assumed same as start line), end column.
+    // These are packed into a single field for efficiency.  Note that line
+    // and column numbers are zero-based -- typically you will want to add
+    // 1 to each before displaying to a user.
+    repeated int32 span = 2 [packed=true];
+
+    // If this SourceCodeInfo represents a complete declaration, these are any
+    // comments appearing before and after the declaration which appear to be
+    // attached to the declaration.
+    //
+    // A series of line comments appearing on consecutive lines, with no other
+    // tokens appearing on those lines, will be treated as a single comment.
+    //
+    // Only the comment content is provided; comment markers (e.g. //) are
+    // stripped out.  For block comments, leading whitespace and an asterisk
+    // will be stripped from the beginning of each line other than the first.
+    // Newlines are included in the output.
+    //
+    // Examples:
+    //
+    //   optional int32 foo = 1;  // Comment attached to foo.
+    //   // Comment attached to bar.
+    //   optional int32 bar = 2;
+    //
+    //   optional string baz = 3;
+    //   // Comment attached to baz.
+    //   // Another line attached to baz.
+    //
+    //   // Comment attached to qux.
+    //   //
+    //   // Another line attached to qux.
+    //   optional double qux = 4;
+    //
+    //   optional string corge = 5;
+    //   /* Block comment attached
+    //    * to corge.  Leading asterisks
+    //    * will be removed. */
+    //   /* Block comment attached to
+    //    * grault. */
+    //   optional int32 grault = 6;
+    optional string leading_comments = 3;
+    optional string trailing_comments = 4;
+  }
+}
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/nanopb.proto b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/nanopb.proto
new file mode 100644
index 0000000..9b2f0fb
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/nanopb.proto
@@ -0,0 +1,97 @@
+// Custom options for defining:
+// - Maximum size of string/bytes
+// - Maximum number of elements in array
+//
+// These are used by nanopb to generate statically allocable structures
+// for memory-limited environments.
+
+syntax = "proto2";
+import "google/protobuf/descriptor.proto";
+
+option java_package = "fi.kapsi.koti.jpa.nanopb";
+
+enum FieldType {
+    FT_DEFAULT = 0; // Automatically decide field type, generate static field if possible.
+    FT_CALLBACK = 1; // Always generate a callback field.
+    FT_POINTER = 4; // Always generate a dynamically allocated field.
+    FT_STATIC = 2; // Generate a static field or raise an exception if not possible.
+    FT_IGNORE = 3; // Ignore the field completely.
+}
+
+enum IntSize {
+    IS_DEFAULT = 0; // Default, 32/64bit based on type in .proto
+    IS_8 = 8;
+    IS_16 = 16;
+    IS_32 = 32;
+    IS_64 = 64;
+}
+
+// This is the inner options message, which basically defines options for
+// a field. When it is used in message or file scope, it applies to all
+// fields.
+message NanoPBOptions {
+  // Allocated size for 'bytes' and 'string' fields.
+  optional int32 max_size = 1;
+  
+  // Allocated number of entries in arrays ('repeated' fields)
+  optional int32 max_count = 2;
+  
+  // Size of integer fields. Can save some memory if you don't need
+  // full 32 bits for the value.
+  optional IntSize int_size = 7 [default = IS_DEFAULT];
+
+  // Force type of field (callback or static allocation)
+  optional FieldType type = 3 [default = FT_DEFAULT];
+  
+  // Use long names for enums, i.e. EnumName_EnumValue.
+  optional bool long_names = 4 [default = true];
+  
+  // Add 'packed' attribute to generated structs.
+  // Note: this cannot be used on CPUs that break on unaligned
+  // accesses to variables.
+  optional bool packed_struct = 5 [default = false];
+  
+  // Add 'packed' attribute to generated enums.
+  optional bool packed_enum = 10 [default = false];
+  
+  // Skip this message
+  optional bool skip_message = 6 [default = false];
+
+  // Generate oneof fields as normal optional fields instead of union.
+  optional bool no_unions = 8 [default = false];
+
+  // integer type tag for a message
+  optional uint32 msgid = 9;
+
+  // decode oneof as anonymous union
+  optional bool anonymous_oneof = 11 [default = false];
+}
+
+// Extensions to protoc 'Descriptor' type in order to define options
+// inside a .proto file.
+//
+// Protocol Buffers extension number registry
+// --------------------------------
+// Project:  Nanopb
+// Contact:  Petteri Aimonen <jpa@kapsi.fi>
+// Web site: http://kapsi.fi/~jpa/nanopb
+// Extensions: 1010 (all types)
+// --------------------------------
+
+extend google.protobuf.FileOptions {
+    optional NanoPBOptions nanopb_fileopt = 1010;
+}
+
+extend google.protobuf.MessageOptions {
+    optional NanoPBOptions nanopb_msgopt = 1010;
+}
+
+extend google.protobuf.EnumOptions {
+    optional NanoPBOptions nanopb_enumopt = 1010;
+}
+
+extend google.protobuf.FieldOptions {
+    optional NanoPBOptions nanopb = 1010;
+}
+
+
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/nanopb_pb2.py b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/nanopb_pb2.py
new file mode 100644
index 0000000..b386775
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/nanopb_pb2.py
@@ -0,0 +1,270 @@
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: nanopb.proto
+
+import sys
+_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
+from google.protobuf.internal import enum_type_wrapper
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import message as _message
+from google.protobuf import reflection as _reflection
+from google.protobuf import symbol_database as _symbol_database
+from google.protobuf import descriptor_pb2
+# @@protoc_insertion_point(imports)
+
+_sym_db = _symbol_database.Default()
+
+
+import google.protobuf.descriptor_pb2
+
+
+DESCRIPTOR = _descriptor.FileDescriptor(
+  name='nanopb.proto',
+  package='',
+  serialized_pb=_b('\n\x0cnanopb.proto\x1a google/protobuf/descriptor.proto\"\xbc\x02\n\rNanoPBOptions\x12\x10\n\x08max_size\x18\x01 \x01(\x05\x12\x11\n\tmax_count\x18\x02 \x01(\x05\x12&\n\x08int_size\x18\x07 \x01(\x0e\x32\x08.IntSize:\nIS_DEFAULT\x12$\n\x04type\x18\x03 \x01(\x0e\x32\n.FieldType:\nFT_DEFAULT\x12\x18\n\nlong_names\x18\x04 \x01(\x08:\x04true\x12\x1c\n\rpacked_struct\x18\x05 \x01(\x08:\x05\x66\x61lse\x12\x1a\n\x0bpacked_enum\x18\n \x01(\x08:\x05\x66\x61lse\x12\x1b\n\x0cskip_message\x18\x06 \x01(\x08:\x05\x66\x61lse\x12\x18\n\tno_unions\x18\x08 \x01(\x08:\x05\x66\x61lse\x12\r\n\x05msgid\x18\t \x01(\r\x12\x1e\n\x0f\x61nonymous_oneof\x18\x0b \x01(\x08:\x05\x66\x61lse*Z\n\tFieldType\x12\x0e\n\nFT_DEFAULT\x10\x00\x12\x0f\n\x0b\x46T_CALLBACK\x10\x01\x12\x0e\n\nFT_POINTER\x10\x04\x12\r\n\tFT_STATIC\x10\x02\x12\r\n\tFT_IGNORE\x10\x03*D\n\x07IntSize\x12\x0e\n\nIS_DEFAULT\x10\x00\x12\x08\n\x04IS_8\x10\x08\x12\t\n\x05IS_16\x10\x10\x12\t\n\x05IS_32\x10 \x12\t\n\x05IS_64\x10@:E\n\x0enanopb_fileopt\x12\x1c.google.protobuf.FileOptions\x18\xf2\x07 \x01(\x0b\x32\x0e.NanoPBOptions:G\n\rnanopb_msgopt\x12\x1f.google.protobuf.MessageOptions\x18\xf2\x07 \x01(\x0b\x32\x0e.NanoPBOptions:E\n\x0enanopb_enumopt\x12\x1c.google.protobuf.EnumOptions\x18\xf2\x07 \x01(\x0b\x32\x0e.NanoPBOptions:>\n\x06nanopb\x12\x1d.google.protobuf.FieldOptions\x18\xf2\x07 \x01(\x0b\x32\x0e.NanoPBOptionsB\x1a\n\x18\x66i.kapsi.koti.jpa.nanopb')
+  ,
+  dependencies=[google.protobuf.descriptor_pb2.DESCRIPTOR,])
+_sym_db.RegisterFileDescriptor(DESCRIPTOR)
+
+_FIELDTYPE = _descriptor.EnumDescriptor(
+  name='FieldType',
+  full_name='FieldType',
+  filename=None,
+  file=DESCRIPTOR,
+  values=[
+    _descriptor.EnumValueDescriptor(
+      name='FT_DEFAULT', index=0, number=0,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='FT_CALLBACK', index=1, number=1,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='FT_POINTER', index=2, number=4,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='FT_STATIC', index=3, number=2,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='FT_IGNORE', index=4, number=3,
+      options=None,
+      type=None),
+  ],
+  containing_type=None,
+  options=None,
+  serialized_start=369,
+  serialized_end=459,
+)
+_sym_db.RegisterEnumDescriptor(_FIELDTYPE)
+
+FieldType = enum_type_wrapper.EnumTypeWrapper(_FIELDTYPE)
+_INTSIZE = _descriptor.EnumDescriptor(
+  name='IntSize',
+  full_name='IntSize',
+  filename=None,
+  file=DESCRIPTOR,
+  values=[
+    _descriptor.EnumValueDescriptor(
+      name='IS_DEFAULT', index=0, number=0,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='IS_8', index=1, number=8,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='IS_16', index=2, number=16,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='IS_32', index=3, number=32,
+      options=None,
+      type=None),
+    _descriptor.EnumValueDescriptor(
+      name='IS_64', index=4, number=64,
+      options=None,
+      type=None),
+  ],
+  containing_type=None,
+  options=None,
+  serialized_start=461,
+  serialized_end=529,
+)
+_sym_db.RegisterEnumDescriptor(_INTSIZE)
+
+IntSize = enum_type_wrapper.EnumTypeWrapper(_INTSIZE)
+FT_DEFAULT = 0
+FT_CALLBACK = 1
+FT_POINTER = 4
+FT_STATIC = 2
+FT_IGNORE = 3
+IS_DEFAULT = 0
+IS_8 = 8
+IS_16 = 16
+IS_32 = 32
+IS_64 = 64
+
+NANOPB_FILEOPT_FIELD_NUMBER = 1010
+nanopb_fileopt = _descriptor.FieldDescriptor(
+  name='nanopb_fileopt', full_name='nanopb_fileopt', index=0,
+  number=1010, type=11, cpp_type=10, label=1,
+  has_default_value=False, default_value=None,
+  message_type=None, enum_type=None, containing_type=None,
+  is_extension=True, extension_scope=None,
+  options=None)
+NANOPB_MSGOPT_FIELD_NUMBER = 1010
+nanopb_msgopt = _descriptor.FieldDescriptor(
+  name='nanopb_msgopt', full_name='nanopb_msgopt', index=1,
+  number=1010, type=11, cpp_type=10, label=1,
+  has_default_value=False, default_value=None,
+  message_type=None, enum_type=None, containing_type=None,
+  is_extension=True, extension_scope=None,
+  options=None)
+NANOPB_ENUMOPT_FIELD_NUMBER = 1010
+nanopb_enumopt = _descriptor.FieldDescriptor(
+  name='nanopb_enumopt', full_name='nanopb_enumopt', index=2,
+  number=1010, type=11, cpp_type=10, label=1,
+  has_default_value=False, default_value=None,
+  message_type=None, enum_type=None, containing_type=None,
+  is_extension=True, extension_scope=None,
+  options=None)
+NANOPB_FIELD_NUMBER = 1010
+nanopb = _descriptor.FieldDescriptor(
+  name='nanopb', full_name='nanopb', index=3,
+  number=1010, type=11, cpp_type=10, label=1,
+  has_default_value=False, default_value=None,
+  message_type=None, enum_type=None, containing_type=None,
+  is_extension=True, extension_scope=None,
+  options=None)
+
+
+_NANOPBOPTIONS = _descriptor.Descriptor(
+  name='NanoPBOptions',
+  full_name='NanoPBOptions',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='max_size', full_name='NanoPBOptions.max_size', index=0,
+      number=1, type=5, cpp_type=1, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='max_count', full_name='NanoPBOptions.max_count', index=1,
+      number=2, type=5, cpp_type=1, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='int_size', full_name='NanoPBOptions.int_size', index=2,
+      number=7, type=14, cpp_type=8, label=1,
+      has_default_value=True, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='type', full_name='NanoPBOptions.type', index=3,
+      number=3, type=14, cpp_type=8, label=1,
+      has_default_value=True, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='long_names', full_name='NanoPBOptions.long_names', index=4,
+      number=4, type=8, cpp_type=7, label=1,
+      has_default_value=True, default_value=True,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='packed_struct', full_name='NanoPBOptions.packed_struct', index=5,
+      number=5, type=8, cpp_type=7, label=1,
+      has_default_value=True, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='packed_enum', full_name='NanoPBOptions.packed_enum', index=6,
+      number=10, type=8, cpp_type=7, label=1,
+      has_default_value=True, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='skip_message', full_name='NanoPBOptions.skip_message', index=7,
+      number=6, type=8, cpp_type=7, label=1,
+      has_default_value=True, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='no_unions', full_name='NanoPBOptions.no_unions', index=8,
+      number=8, type=8, cpp_type=7, label=1,
+      has_default_value=True, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='msgid', full_name='NanoPBOptions.msgid', index=9,
+      number=9, type=13, cpp_type=3, label=1,
+      has_default_value=False, default_value=0,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='anonymous_oneof', full_name='NanoPBOptions.anonymous_oneof', index=10,
+      number=11, type=8, cpp_type=7, label=1,
+      has_default_value=True, default_value=False,
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=51,
+  serialized_end=367,
+)
+
+_NANOPBOPTIONS.fields_by_name['int_size'].enum_type = _INTSIZE
+_NANOPBOPTIONS.fields_by_name['type'].enum_type = _FIELDTYPE
+DESCRIPTOR.message_types_by_name['NanoPBOptions'] = _NANOPBOPTIONS
+DESCRIPTOR.enum_types_by_name['FieldType'] = _FIELDTYPE
+DESCRIPTOR.enum_types_by_name['IntSize'] = _INTSIZE
+DESCRIPTOR.extensions_by_name['nanopb_fileopt'] = nanopb_fileopt
+DESCRIPTOR.extensions_by_name['nanopb_msgopt'] = nanopb_msgopt
+DESCRIPTOR.extensions_by_name['nanopb_enumopt'] = nanopb_enumopt
+DESCRIPTOR.extensions_by_name['nanopb'] = nanopb
+
+NanoPBOptions = _reflection.GeneratedProtocolMessageType('NanoPBOptions', (_message.Message,), dict(
+  DESCRIPTOR = _NANOPBOPTIONS,
+  __module__ = 'nanopb_pb2'
+  # @@protoc_insertion_point(class_scope:NanoPBOptions)
+  ))
+_sym_db.RegisterMessage(NanoPBOptions)
+
+nanopb_fileopt.message_type = _NANOPBOPTIONS
+google.protobuf.descriptor_pb2.FileOptions.RegisterExtension(nanopb_fileopt)
+nanopb_msgopt.message_type = _NANOPBOPTIONS
+google.protobuf.descriptor_pb2.MessageOptions.RegisterExtension(nanopb_msgopt)
+nanopb_enumopt.message_type = _NANOPBOPTIONS
+google.protobuf.descriptor_pb2.EnumOptions.RegisterExtension(nanopb_enumopt)
+nanopb.message_type = _NANOPBOPTIONS
+google.protobuf.descriptor_pb2.FieldOptions.RegisterExtension(nanopb)
+
+DESCRIPTOR.has_options = True
+DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), _b('\n\030fi.kapsi.koti.jpa.nanopb'))
+# @@protoc_insertion_point(module_scope)
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/plugin.proto b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/plugin.proto
new file mode 100644
index 0000000..e627289
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/plugin.proto
@@ -0,0 +1,148 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Author: kenton@google.com (Kenton Varda)
+//
+// WARNING:  The plugin interface is currently EXPERIMENTAL and is subject to
+//   change.
+//
+// protoc (aka the Protocol Compiler) can be extended via plugins.  A plugin is
+// just a program that reads a CodeGeneratorRequest from stdin and writes a
+// CodeGeneratorResponse to stdout.
+//
+// Plugins written using C++ can use google/protobuf/compiler/plugin.h instead
+// of dealing with the raw protocol defined here.
+//
+// A plugin executable needs only to be placed somewhere in the path.  The
+// plugin should be named "protoc-gen-$NAME", and will then be used when the
+// flag "--${NAME}_out" is passed to protoc.
+
+syntax = "proto2";
+package google.protobuf.compiler;
+option java_package = "com.google.protobuf.compiler";
+option java_outer_classname = "PluginProtos";
+
+import "google/protobuf/descriptor.proto";
+
+// An encoded CodeGeneratorRequest is written to the plugin's stdin.
+message CodeGeneratorRequest {
+  // The .proto files that were explicitly listed on the command-line.  The
+  // code generator should generate code only for these files.  Each file's
+  // descriptor will be included in proto_file, below.
+  repeated string file_to_generate = 1;
+
+  // The generator parameter passed on the command-line.
+  optional string parameter = 2;
+
+  // FileDescriptorProtos for all files in files_to_generate and everything
+  // they import.  The files will appear in topological order, so each file
+  // appears before any file that imports it.
+  //
+  // protoc guarantees that all proto_files will be written after
+  // the fields above, even though this is not technically guaranteed by the
+  // protobuf wire format.  This theoretically could allow a plugin to stream
+  // in the FileDescriptorProtos and handle them one by one rather than read
+  // the entire set into memory at once.  However, as of this writing, this
+  // is not similarly optimized on protoc's end -- it will store all fields in
+  // memory at once before sending them to the plugin.
+  repeated FileDescriptorProto proto_file = 15;
+}
+
+// The plugin writes an encoded CodeGeneratorResponse to stdout.
+message CodeGeneratorResponse {
+  // Error message.  If non-empty, code generation failed.  The plugin process
+  // should exit with status code zero even if it reports an error in this way.
+  //
+  // This should be used to indicate errors in .proto files which prevent the
+  // code generator from generating correct code.  Errors which indicate a
+  // problem in protoc itself -- such as the input CodeGeneratorRequest being
+  // unparseable -- should be reported by writing a message to stderr and
+  // exiting with a non-zero status code.
+  optional string error = 1;
+
+  // Represents a single generated file.
+  message File {
+    // The file name, relative to the output directory.  The name must not
+    // contain "." or ".." components and must be relative, not be absolute (so,
+    // the file cannot lie outside the output directory).  "/" must be used as
+    // the path separator, not "\".
+    //
+    // If the name is omitted, the content will be appended to the previous
+    // file.  This allows the generator to break large files into small chunks,
+    // and allows the generated text to be streamed back to protoc so that large
+    // files need not reside completely in memory at one time.  Note that as of
+    // this writing protoc does not optimize for this -- it will read the entire
+    // CodeGeneratorResponse before writing files to disk.
+    optional string name = 1;
+
+    // If non-empty, indicates that the named file should already exist, and the
+    // content here is to be inserted into that file at a defined insertion
+    // point.  This feature allows a code generator to extend the output
+    // produced by another code generator.  The original generator may provide
+    // insertion points by placing special annotations in the file that look
+    // like:
+    //   @@protoc_insertion_point(NAME)
+    // The annotation can have arbitrary text before and after it on the line,
+    // which allows it to be placed in a comment.  NAME should be replaced with
+    // an identifier naming the point -- this is what other generators will use
+    // as the insertion_point.  Code inserted at this point will be placed
+    // immediately above the line containing the insertion point (thus multiple
+    // insertions to the same point will come out in the order they were added).
+    // The double-@ is intended to make it unlikely that the generated code
+    // could contain things that look like insertion points by accident.
+    //
+    // For example, the C++ code generator places the following line in the
+    // .pb.h files that it generates:
+    //   // @@protoc_insertion_point(namespace_scope)
+    // This line appears within the scope of the file's package namespace, but
+    // outside of any particular class.  Another plugin can then specify the
+    // insertion_point "namespace_scope" to generate additional classes or
+    // other declarations that should be placed in this scope.
+    //
+    // Note that if the line containing the insertion point begins with
+    // whitespace, the same whitespace will be added to every line of the
+    // inserted text.  This is useful for languages like Python, where
+    // indentation matters.  In these languages, the insertion point comment
+    // should be indented the same amount as any inserted code will need to be
+    // in order to work correctly in that context.
+    //
+    // The code generator that generates the initial file and the one which
+    // inserts into it must both run as part of a single invocation of protoc.
+    // Code generators are executed in the order in which they appear on the
+    // command line.
+    //
+    // If |insertion_point| is present, |name| must also be present.
+    optional string insertion_point = 2;
+
+    // The file contents.
+    optional string content = 15;
+  }
+  repeated File file = 15;
+}
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/plugin_pb2.py b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/plugin_pb2.py
new file mode 100644
index 0000000..481d0d7
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/proto/plugin_pb2.py
@@ -0,0 +1,184 @@
+# Generated by the protocol buffer compiler.  DO NOT EDIT!
+# source: plugin.proto
+
+import sys
+_b=sys.version_info[0]<3 and (lambda x:x) or (lambda x:x.encode('latin1'))
+from google.protobuf import descriptor as _descriptor
+from google.protobuf import message as _message
+from google.protobuf import reflection as _reflection
+from google.protobuf import symbol_database as _symbol_database
+from google.protobuf import descriptor_pb2
+# @@protoc_insertion_point(imports)
+
+_sym_db = _symbol_database.Default()
+
+
+import google.protobuf.descriptor_pb2
+
+
+DESCRIPTOR = _descriptor.FileDescriptor(
+  name='plugin.proto',
+  package='google.protobuf.compiler',
+  serialized_pb=_b('\n\x0cplugin.proto\x12\x18google.protobuf.compiler\x1a google/protobuf/descriptor.proto\"}\n\x14\x43odeGeneratorRequest\x12\x18\n\x10\x66ile_to_generate\x18\x01 \x03(\t\x12\x11\n\tparameter\x18\x02 \x01(\t\x12\x38\n\nproto_file\x18\x0f \x03(\x0b\x32$.google.protobuf.FileDescriptorProto\"\xaa\x01\n\x15\x43odeGeneratorResponse\x12\r\n\x05\x65rror\x18\x01 \x01(\t\x12\x42\n\x04\x66ile\x18\x0f \x03(\x0b\x32\x34.google.protobuf.compiler.CodeGeneratorResponse.File\x1a>\n\x04\x46ile\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\x17\n\x0finsertion_point\x18\x02 \x01(\t\x12\x0f\n\x07\x63ontent\x18\x0f \x01(\tB,\n\x1c\x63om.google.protobuf.compilerB\x0cPluginProtos')
+  ,
+  dependencies=[google.protobuf.descriptor_pb2.DESCRIPTOR,])
+_sym_db.RegisterFileDescriptor(DESCRIPTOR)
+
+
+
+
+_CODEGENERATORREQUEST = _descriptor.Descriptor(
+  name='CodeGeneratorRequest',
+  full_name='google.protobuf.compiler.CodeGeneratorRequest',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='file_to_generate', full_name='google.protobuf.compiler.CodeGeneratorRequest.file_to_generate', index=0,
+      number=1, type=9, cpp_type=9, label=3,
+      has_default_value=False, default_value=[],
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='parameter', full_name='google.protobuf.compiler.CodeGeneratorRequest.parameter', index=1,
+      number=2, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=_b("").decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='proto_file', full_name='google.protobuf.compiler.CodeGeneratorRequest.proto_file', index=2,
+      number=15, type=11, cpp_type=10, label=3,
+      has_default_value=False, default_value=[],
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=76,
+  serialized_end=201,
+)
+
+
+_CODEGENERATORRESPONSE_FILE = _descriptor.Descriptor(
+  name='File',
+  full_name='google.protobuf.compiler.CodeGeneratorResponse.File',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='name', full_name='google.protobuf.compiler.CodeGeneratorResponse.File.name', index=0,
+      number=1, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=_b("").decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='insertion_point', full_name='google.protobuf.compiler.CodeGeneratorResponse.File.insertion_point', index=1,
+      number=2, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=_b("").decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='content', full_name='google.protobuf.compiler.CodeGeneratorResponse.File.content', index=2,
+      number=15, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=_b("").decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=312,
+  serialized_end=374,
+)
+
+_CODEGENERATORRESPONSE = _descriptor.Descriptor(
+  name='CodeGeneratorResponse',
+  full_name='google.protobuf.compiler.CodeGeneratorResponse',
+  filename=None,
+  file=DESCRIPTOR,
+  containing_type=None,
+  fields=[
+    _descriptor.FieldDescriptor(
+      name='error', full_name='google.protobuf.compiler.CodeGeneratorResponse.error', index=0,
+      number=1, type=9, cpp_type=9, label=1,
+      has_default_value=False, default_value=_b("").decode('utf-8'),
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+    _descriptor.FieldDescriptor(
+      name='file', full_name='google.protobuf.compiler.CodeGeneratorResponse.file', index=1,
+      number=15, type=11, cpp_type=10, label=3,
+      has_default_value=False, default_value=[],
+      message_type=None, enum_type=None, containing_type=None,
+      is_extension=False, extension_scope=None,
+      options=None),
+  ],
+  extensions=[
+  ],
+  nested_types=[_CODEGENERATORRESPONSE_FILE, ],
+  enum_types=[
+  ],
+  options=None,
+  is_extendable=False,
+  extension_ranges=[],
+  oneofs=[
+  ],
+  serialized_start=204,
+  serialized_end=374,
+)
+
+_CODEGENERATORREQUEST.fields_by_name['proto_file'].message_type = google.protobuf.descriptor_pb2._FILEDESCRIPTORPROTO
+_CODEGENERATORRESPONSE_FILE.containing_type = _CODEGENERATORRESPONSE
+_CODEGENERATORRESPONSE.fields_by_name['file'].message_type = _CODEGENERATORRESPONSE_FILE
+DESCRIPTOR.message_types_by_name['CodeGeneratorRequest'] = _CODEGENERATORREQUEST
+DESCRIPTOR.message_types_by_name['CodeGeneratorResponse'] = _CODEGENERATORRESPONSE
+
+CodeGeneratorRequest = _reflection.GeneratedProtocolMessageType('CodeGeneratorRequest', (_message.Message,), dict(
+  DESCRIPTOR = _CODEGENERATORREQUEST,
+  __module__ = 'plugin_pb2'
+  # @@protoc_insertion_point(class_scope:google.protobuf.compiler.CodeGeneratorRequest)
+  ))
+_sym_db.RegisterMessage(CodeGeneratorRequest)
+
+CodeGeneratorResponse = _reflection.GeneratedProtocolMessageType('CodeGeneratorResponse', (_message.Message,), dict(
+
+  File = _reflection.GeneratedProtocolMessageType('File', (_message.Message,), dict(
+    DESCRIPTOR = _CODEGENERATORRESPONSE_FILE,
+    __module__ = 'plugin_pb2'
+    # @@protoc_insertion_point(class_scope:google.protobuf.compiler.CodeGeneratorResponse.File)
+    ))
+  ,
+  DESCRIPTOR = _CODEGENERATORRESPONSE,
+  __module__ = 'plugin_pb2'
+  # @@protoc_insertion_point(class_scope:google.protobuf.compiler.CodeGeneratorResponse)
+  ))
+_sym_db.RegisterMessage(CodeGeneratorResponse)
+_sym_db.RegisterMessage(CodeGeneratorResponse.File)
+
+
+DESCRIPTOR.has_options = True
+DESCRIPTOR._options = _descriptor._ParseOptions(descriptor_pb2.FileOptions(), _b('\n\034com.google.protobuf.compilerB\014PluginProtos'))
+# @@protoc_insertion_point(module_scope)
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/protoc-gen-nanopb b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/protoc-gen-nanopb
new file mode 100644
index 0000000..358f97c
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/protoc-gen-nanopb
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+# This file is used to invoke nanopb_generator.py as a plugin
+# to protoc on Linux and other *nix-style systems.
+# Use it like this:
+# protoc --plugin=nanopb=..../protoc-gen-nanopb --nanopb_out=dir foo.proto
+#
+# Note that if you use the binary package of nanopb, the protoc
+# path is already set up properly and there is no need to give
+# --plugin= on the command line.
+
+MYPATH=$(dirname "$0")
+exec "$MYPATH/nanopb_generator.py" --protoc-plugin
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/protoc-gen-nanopb.bat b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/protoc-gen-nanopb.bat
new file mode 100644
index 0000000..7624984
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/generator/protoc-gen-nanopb.bat
@@ -0,0 +1,12 @@
+@echo off
+:: This file is used to invoke nanopb_generator.py as a plugin
+:: to protoc on Windows.
+:: Use it like this:
+:: protoc --plugin=nanopb=..../protoc-gen-nanopb.bat --nanopb_out=dir foo.proto
+::
+:: Note that if you use the binary package of nanopb, the protoc
+:: path is already set up properly and there is no need to give
+:: --plugin= on the command line.
+
+set mydir=%~dp0
+python "%mydir%\nanopb_generator.py" --protoc-plugin
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb.h
new file mode 100644
index 0000000..a17280d
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb.h
@@ -0,0 +1,556 @@
+/* Common parts of the nanopb library. Most of these are quite low-level
+ * stuff. For the high-level interface, see pb_encode.h and pb_decode.h.
+ */
+
+#ifndef PB_H_INCLUDED
+#define PB_H_INCLUDED
+
+/*****************************************************************
+ * Nanopb compilation time options. You can change these here by *
+ * uncommenting the lines, or on the compiler command line.      *
+ *****************************************************************/
+
+/* Enable support for dynamically allocated fields */
+/* #define PB_ENABLE_MALLOC 1 */
+
+/* Define this if your CPU / compiler combination does not support
+ * unaligned memory access to packed structures. */
+#define PB_NO_PACKED_STRUCTS 1
+
+/* Increase the number of required fields that are tracked.
+ * A compiler warning will tell if you need this. */
+/* #define PB_MAX_REQUIRED_FIELDS 256 */
+
+/* Add support for tag numbers > 255 and fields larger than 255 bytes. */
+/* #define PB_FIELD_16BIT 1 */
+
+/* Add support for tag numbers > 65536 and fields larger than 65536 bytes. */
+/* #define PB_FIELD_32BIT 1 */
+
+/* Disable support for error messages in order to save some code space. */
+#define PB_NO_ERRMSG 1
+
+/* Disable support for custom streams (support only memory buffers). */
+/* #define PB_BUFFER_ONLY 1 */
+
+/* Switch back to the old-style callback function signature.
+ * This was the default until nanopb-0.2.1. */
+/* #define PB_OLD_CALLBACK_STYLE */
+
+
+/******************************************************************
+ * You usually don't need to change anything below this line.     *
+ * Feel free to look around and use the defined macros, though.   *
+ ******************************************************************/
+
+
+/* Version of the nanopb library. Just in case you want to check it in
+ * your own program. */
+#define NANOPB_VERSION nanopb-0.3.6-dev
+
+/* Include all the system headers needed by nanopb. You will need the
+ * definitions of the following:
+ * - strlen, memcpy, memset functions
+ * - [u]int_least8_t, uint_fast8_t, [u]int_least16_t, [u]int32_t, [u]int64_t
+ * - size_t
+ * - bool
+ *
+ * If you don't have the standard header files, you can instead provide
+ * a custom header that defines or includes all this. In that case,
+ * define PB_SYSTEM_HEADER to the path of this file.
+ */
+#ifdef PB_SYSTEM_HEADER
+#include PB_SYSTEM_HEADER
+#else
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <string.h>
+
+#ifdef PB_ENABLE_MALLOC
+#include <stdlib.h>
+#endif
+#endif
+
+/* Macro for defining packed structures (compiler dependent).
+ * This just reduces memory requirements, but is not required.
+ */
+#if defined(PB_NO_PACKED_STRUCTS)
+    /* Disable struct packing */
+#   define PB_PACKED_STRUCT_START
+#   define PB_PACKED_STRUCT_END
+#   define pb_packed
+#elif defined(__GNUC__) || defined(__clang__)
+    /* For GCC and clang */
+#   define PB_PACKED_STRUCT_START
+#   define PB_PACKED_STRUCT_END
+#   define pb_packed __attribute__((packed))
+#elif defined(__ICCARM__) || defined(__CC_ARM)
+    /* For IAR ARM and Keil MDK-ARM compilers */
+#   define PB_PACKED_STRUCT_START _Pragma("pack(push, 1)")
+#   define PB_PACKED_STRUCT_END _Pragma("pack(pop)")
+#   define pb_packed
+#elif defined(_MSC_VER) && (_MSC_VER >= 1500)
+    /* For Microsoft Visual C++ */
+#   define PB_PACKED_STRUCT_START __pragma(pack(push, 1))
+#   define PB_PACKED_STRUCT_END __pragma(pack(pop))
+#   define pb_packed
+#else
+    /* Unknown compiler */
+#   define PB_PACKED_STRUCT_START
+#   define PB_PACKED_STRUCT_END
+#   define pb_packed
+#endif
+
+/* Handly macro for suppressing unreferenced-parameter compiler warnings. */
+#ifndef PB_UNUSED
+#define PB_UNUSED(x) (void)(x)
+#endif
+
+/* Compile-time assertion, used for checking compatible compilation options.
+ * If this does not work properly on your compiler, use
+ * #define PB_NO_STATIC_ASSERT to disable it.
+ *
+ * But before doing that, check carefully the error message / place where it
+ * comes from to see if the error has a real cause. Unfortunately the error
+ * message is not always very clear to read, but you can see the reason better
+ * in the place where the PB_STATIC_ASSERT macro was called.
+ */
+#ifndef PB_NO_STATIC_ASSERT
+#ifndef PB_STATIC_ASSERT
+#define PB_STATIC_ASSERT(COND,MSG) typedef char PB_STATIC_ASSERT_MSG(MSG, __LINE__, __COUNTER__)[(COND)?1:-1];
+#define PB_STATIC_ASSERT_MSG(MSG, LINE, COUNTER) PB_STATIC_ASSERT_MSG_(MSG, LINE, COUNTER)
+#define PB_STATIC_ASSERT_MSG_(MSG, LINE, COUNTER) pb_static_assertion_##MSG##LINE##COUNTER
+#endif
+#else
+#define PB_STATIC_ASSERT(COND,MSG)
+#endif
+
+/* Number of required fields to keep track of. */
+#ifndef PB_MAX_REQUIRED_FIELDS
+#define PB_MAX_REQUIRED_FIELDS 64
+#endif
+
+#if PB_MAX_REQUIRED_FIELDS < 64
+#error You should not lower PB_MAX_REQUIRED_FIELDS from the default value (64).
+#endif
+
+/* List of possible field types. These are used in the autogenerated code.
+ * Least-significant 4 bits tell the scalar type
+ * Most-significant 4 bits specify repeated/required/packed etc.
+ */
+
+typedef uint_least8_t pb_type_t;
+
+/**** Field data types ****/
+
+/* Numeric types */
+#define PB_LTYPE_VARINT  0x00 /* int32, int64, enum, bool */
+#define PB_LTYPE_UVARINT 0x01 /* uint32, uint64 */
+#define PB_LTYPE_SVARINT 0x02 /* sint32, sint64 */
+#define PB_LTYPE_FIXED32 0x03 /* fixed32, sfixed32, float */
+#define PB_LTYPE_FIXED64 0x04 /* fixed64, sfixed64, double */
+
+/* Marker for last packable field type. */
+#define PB_LTYPE_LAST_PACKABLE 0x04
+
+/* Byte array with pre-allocated buffer.
+ * data_size is the length of the allocated PB_BYTES_ARRAY structure. */
+#define PB_LTYPE_BYTES 0x05
+
+/* String with pre-allocated buffer.
+ * data_size is the maximum length. */
+#define PB_LTYPE_STRING 0x06
+
+/* Submessage
+ * submsg_fields is pointer to field descriptions */
+#define PB_LTYPE_SUBMESSAGE 0x07
+
+/* Extension pseudo-field
+ * The field contains a pointer to pb_extension_t */
+#define PB_LTYPE_EXTENSION 0x08
+
+/* Number of declared LTYPES */
+#define PB_LTYPES_COUNT 9
+#define PB_LTYPE_MASK 0x0F
+
+/**** Field repetition rules ****/
+
+#define PB_HTYPE_REQUIRED 0x00
+#define PB_HTYPE_OPTIONAL 0x10
+#define PB_HTYPE_REPEATED 0x20
+#define PB_HTYPE_ONEOF    0x30
+#define PB_HTYPE_MASK     0x30
+
+/**** Field allocation types ****/
+ 
+#define PB_ATYPE_STATIC   0x00
+#define PB_ATYPE_POINTER  0x80
+#define PB_ATYPE_CALLBACK 0x40
+#define PB_ATYPE_MASK     0xC0
+
+#define PB_ATYPE(x) ((x) & PB_ATYPE_MASK)
+#define PB_HTYPE(x) ((x) & PB_HTYPE_MASK)
+#define PB_LTYPE(x) ((x) & PB_LTYPE_MASK)
+
+/* Data type used for storing sizes of struct fields
+ * and array counts.
+ */
+#if defined(PB_FIELD_32BIT)
+    typedef uint32_t pb_size_t;
+    typedef int32_t pb_ssize_t;
+#elif defined(PB_FIELD_16BIT)
+    typedef uint_least16_t pb_size_t;
+    typedef int_least16_t pb_ssize_t;
+#else
+    typedef uint_least8_t pb_size_t;
+    typedef int_least8_t pb_ssize_t;
+#endif
+#define PB_SIZE_MAX ((pb_size_t)-1)
+
+/* Data type for storing encoded data and other byte streams.
+ * This typedef exists to support platforms where uint8_t does not exist.
+ * You can regard it as equivalent on uint8_t on other platforms.
+ */
+typedef uint_least8_t pb_byte_t;
+
+/* This structure is used in auto-generated constants
+ * to specify struct fields.
+ * You can change field sizes if you need structures
+ * larger than 256 bytes or field tags larger than 256.
+ * The compiler should complain if your .proto has such
+ * structures. Fix that by defining PB_FIELD_16BIT or
+ * PB_FIELD_32BIT.
+ */
+PB_PACKED_STRUCT_START
+typedef struct pb_field_s pb_field_t;
+struct pb_field_s {
+    pb_size_t tag;
+    pb_type_t type;
+    pb_size_t data_offset; /* Offset of field data, relative to previous field. */
+    pb_ssize_t size_offset; /* Offset of array size or has-boolean, relative to data */
+    pb_size_t data_size; /* Data size in bytes for a single item */
+    pb_size_t array_size; /* Maximum number of entries in array */
+    
+    /* Field definitions for submessage
+     * OR default value for all other non-array, non-callback types
+     * If null, then field will zeroed. */
+    const void *ptr;
+} pb_packed;
+PB_PACKED_STRUCT_END
+
+/* Make sure that the standard integer types are of the expected sizes.
+ * Otherwise fixed32/fixed64 fields can break.
+ *
+ * If you get errors here, it probably means that your stdint.h is not
+ * correct for your platform.
+ */
+PB_STATIC_ASSERT(sizeof(int64_t) == 2 * sizeof(int32_t), INT64_T_WRONG_SIZE)
+PB_STATIC_ASSERT(sizeof(uint64_t) == 2 * sizeof(uint32_t), UINT64_T_WRONG_SIZE)
+
+/* This structure is used for 'bytes' arrays.
+ * It has the number of bytes in the beginning, and after that an array.
+ * Note that actual structs used will have a different length of bytes array.
+ */
+#define PB_BYTES_ARRAY_T(n) struct { pb_size_t size; pb_byte_t bytes[n]; }
+#define PB_BYTES_ARRAY_T_ALLOCSIZE(n) ((size_t)n + offsetof(pb_bytes_array_t, bytes))
+
+struct pb_bytes_array_s {
+    pb_size_t size;
+    pb_byte_t bytes[1];
+};
+typedef struct pb_bytes_array_s pb_bytes_array_t;
+
+/* This structure is used for giving the callback function.
+ * It is stored in the message structure and filled in by the method that
+ * calls pb_decode.
+ *
+ * The decoding callback will be given a limited-length stream
+ * If the wire type was string, the length is the length of the string.
+ * If the wire type was a varint/fixed32/fixed64, the length is the length
+ * of the actual value.
+ * The function may be called multiple times (especially for repeated types,
+ * but also otherwise if the message happens to contain the field multiple
+ * times.)
+ *
+ * The encoding callback will receive the actual output stream.
+ * It should write all the data in one call, including the field tag and
+ * wire type. It can write multiple fields.
+ *
+ * The callback can be null if you want to skip a field.
+ */
+typedef struct pb_istream_s pb_istream_t;
+typedef struct pb_ostream_s pb_ostream_t;
+typedef struct pb_callback_s pb_callback_t;
+struct pb_callback_s {
+#ifdef PB_OLD_CALLBACK_STYLE
+    /* Deprecated since nanopb-0.2.1 */
+    union {
+        bool (*decode)(pb_istream_t *stream, const pb_field_t *field, void *arg);
+        bool (*encode)(pb_ostream_t *stream, const pb_field_t *field, const void *arg);
+    } funcs;
+#else
+    /* New function signature, which allows modifying arg contents in callback. */
+    union {
+        bool (*decode)(pb_istream_t *stream, const pb_field_t *field, void **arg);
+        bool (*encode)(pb_ostream_t *stream, const pb_field_t *field, void * const *arg);
+    } funcs;
+#endif    
+    
+    /* Free arg for use by callback */
+    void *arg;
+};
+
+/* Wire types. Library user needs these only in encoder callbacks. */
+typedef enum {
+    PB_WT_VARINT = 0,
+    PB_WT_64BIT  = 1,
+    PB_WT_STRING = 2,
+    PB_WT_32BIT  = 5
+} pb_wire_type_t;
+
+/* Structure for defining the handling of unknown/extension fields.
+ * Usually the pb_extension_type_t structure is automatically generated,
+ * while the pb_extension_t structure is created by the user. However,
+ * if you want to catch all unknown fields, you can also create a custom
+ * pb_extension_type_t with your own callback.
+ */
+typedef struct pb_extension_type_s pb_extension_type_t;
+typedef struct pb_extension_s pb_extension_t;
+struct pb_extension_type_s {
+    /* Called for each unknown field in the message.
+     * If you handle the field, read off all of its data and return true.
+     * If you do not handle the field, do not read anything and return true.
+     * If you run into an error, return false.
+     * Set to NULL for default handler.
+     */
+    bool (*decode)(pb_istream_t *stream, pb_extension_t *extension,
+                   uint32_t tag, pb_wire_type_t wire_type);
+    
+    /* Called once after all regular fields have been encoded.
+     * If you have something to write, do so and return true.
+     * If you do not have anything to write, just return true.
+     * If you run into an error, return false.
+     * Set to NULL for default handler.
+     */
+    bool (*encode)(pb_ostream_t *stream, const pb_extension_t *extension);
+    
+    /* Free field for use by the callback. */
+    const void *arg;
+};
+
+struct pb_extension_s {
+    /* Type describing the extension field. Usually you'll initialize
+     * this to a pointer to the automatically generated structure. */
+    const pb_extension_type_t *type;
+    
+    /* Destination for the decoded data. This must match the datatype
+     * of the extension field. */
+    void *dest;
+    
+    /* Pointer to the next extension handler, or NULL.
+     * If this extension does not match a field, the next handler is
+     * automatically called. */
+    pb_extension_t *next;
+
+    /* The decoder sets this to true if the extension was found.
+     * Ignored for encoding. */
+    bool found;
+};
+
+/* Memory allocation functions to use. You can define pb_realloc and
+ * pb_free to custom functions if you want. */
+#ifdef PB_ENABLE_MALLOC
+#   ifndef pb_realloc
+#       define pb_realloc(ptr, size) realloc(ptr, size)
+#   endif
+#   ifndef pb_free
+#       define pb_free(ptr) free(ptr)
+#   endif
+#endif
+
+/* This is used to inform about need to regenerate .pb.h/.pb.c files. */
+#define PB_PROTO_HEADER_VERSION 30
+
+/* These macros are used to declare pb_field_t's in the constant array. */
+/* Size of a structure member, in bytes. */
+#define pb_membersize(st, m) (sizeof ((st*)0)->m)
+/* Number of entries in an array. */
+#define pb_arraysize(st, m) (pb_membersize(st, m) / pb_membersize(st, m[0]))
+/* Delta from start of one member to the start of another member. */
+#define pb_delta(st, m1, m2) ((int)offsetof(st, m1) - (int)offsetof(st, m2))
+/* Marks the end of the field list */
+#define PB_LAST_FIELD {0,(pb_type_t) 0,0,0,0,0,0}
+
+/* Macros for filling in the data_offset field */
+/* data_offset for first field in a message */
+#define PB_DATAOFFSET_FIRST(st, m1, m2) (offsetof(st, m1))
+/* data_offset for subsequent fields */
+#define PB_DATAOFFSET_OTHER(st, m1, m2) (offsetof(st, m1) - offsetof(st, m2) - pb_membersize(st, m2))
+/* Choose first/other based on m1 == m2 (deprecated, remains for backwards compatibility) */
+#define PB_DATAOFFSET_CHOOSE(st, m1, m2) (int)(offsetof(st, m1) == offsetof(st, m2) \
+                                  ? PB_DATAOFFSET_FIRST(st, m1, m2) \
+                                  : PB_DATAOFFSET_OTHER(st, m1, m2))
+
+/* Required fields are the simplest. They just have delta (padding) from
+ * previous field end, and the size of the field. Pointer is used for
+ * submessages and default values.
+ */
+#define PB_REQUIRED_STATIC(tag, st, m, fd, ltype, ptr) \
+    {tag, PB_ATYPE_STATIC | PB_HTYPE_REQUIRED | ltype, \
+    fd, 0, pb_membersize(st, m), 0, ptr}
+
+/* Optional fields add the delta to the has_ variable. */
+#define PB_OPTIONAL_STATIC(tag, st, m, fd, ltype, ptr) \
+    {tag, PB_ATYPE_STATIC | PB_HTYPE_OPTIONAL | ltype, \
+    fd, \
+    pb_delta(st, has_ ## m, m), \
+    pb_membersize(st, m), 0, ptr}
+
+/* Repeated fields have a _count field and also the maximum number of entries. */
+#define PB_REPEATED_STATIC(tag, st, m, fd, ltype, ptr) \
+    {tag, PB_ATYPE_STATIC | PB_HTYPE_REPEATED | ltype, \
+    fd, \
+    pb_delta(st, m ## _count, m), \
+    pb_membersize(st, m[0]), \
+    pb_arraysize(st, m), ptr}
+
+/* Allocated fields carry the size of the actual data, not the pointer */
+#define PB_REQUIRED_POINTER(tag, st, m, fd, ltype, ptr) \
+    {tag, PB_ATYPE_POINTER | PB_HTYPE_REQUIRED | ltype, \
+    fd, 0, pb_membersize(st, m[0]), 0, ptr}
+
+/* Optional fields don't need a has_ variable, as information would be redundant */
+#define PB_OPTIONAL_POINTER(tag, st, m, fd, ltype, ptr) \
+    {tag, PB_ATYPE_POINTER | PB_HTYPE_OPTIONAL | ltype, \
+    fd, 0, pb_membersize(st, m[0]), 0, ptr}
+
+/* Repeated fields have a _count field and a pointer to array of pointers */
+#define PB_REPEATED_POINTER(tag, st, m, fd, ltype, ptr) \
+    {tag, PB_ATYPE_POINTER | PB_HTYPE_REPEATED | ltype, \
+    fd, pb_delta(st, m ## _count, m), \
+    pb_membersize(st, m[0]), 0, ptr}
+
+/* Callbacks are much like required fields except with special datatype. */
+#define PB_REQUIRED_CALLBACK(tag, st, m, fd, ltype, ptr) \
+    {tag, PB_ATYPE_CALLBACK | PB_HTYPE_REQUIRED | ltype, \
+    fd, 0, pb_membersize(st, m), 0, ptr}
+
+#define PB_OPTIONAL_CALLBACK(tag, st, m, fd, ltype, ptr) \
+    {tag, PB_ATYPE_CALLBACK | PB_HTYPE_OPTIONAL | ltype, \
+    fd, 0, pb_membersize(st, m), 0, ptr}
+    
+#define PB_REPEATED_CALLBACK(tag, st, m, fd, ltype, ptr) \
+    {tag, PB_ATYPE_CALLBACK | PB_HTYPE_REPEATED | ltype, \
+    fd, 0, pb_membersize(st, m), 0, ptr}
+
+/* Optional extensions don't have the has_ field, as that would be redundant. */
+#define PB_OPTEXT_STATIC(tag, st, m, fd, ltype, ptr) \
+    {tag, PB_ATYPE_STATIC | PB_HTYPE_OPTIONAL | ltype, \
+    0, \
+    0, \
+    pb_membersize(st, m), 0, ptr}
+
+#define PB_OPTEXT_POINTER(tag, st, m, fd, ltype, ptr) \
+    PB_OPTIONAL_POINTER(tag, st, m, fd, ltype, ptr)
+
+#define PB_OPTEXT_CALLBACK(tag, st, m, fd, ltype, ptr) \
+    PB_OPTIONAL_CALLBACK(tag, st, m, fd, ltype, ptr)
+
+/* The mapping from protobuf types to LTYPEs is done using these macros. */
+#define PB_LTYPE_MAP_BOOL       PB_LTYPE_VARINT
+#define PB_LTYPE_MAP_BYTES      PB_LTYPE_BYTES
+#define PB_LTYPE_MAP_DOUBLE     PB_LTYPE_FIXED64
+#define PB_LTYPE_MAP_ENUM       PB_LTYPE_VARINT
+#define PB_LTYPE_MAP_UENUM      PB_LTYPE_UVARINT
+#define PB_LTYPE_MAP_FIXED32    PB_LTYPE_FIXED32
+#define PB_LTYPE_MAP_FIXED64    PB_LTYPE_FIXED64
+#define PB_LTYPE_MAP_FLOAT      PB_LTYPE_FIXED32
+#define PB_LTYPE_MAP_INT32      PB_LTYPE_VARINT
+#define PB_LTYPE_MAP_INT64      PB_LTYPE_VARINT
+#define PB_LTYPE_MAP_MESSAGE    PB_LTYPE_SUBMESSAGE
+#define PB_LTYPE_MAP_SFIXED32   PB_LTYPE_FIXED32
+#define PB_LTYPE_MAP_SFIXED64   PB_LTYPE_FIXED64
+#define PB_LTYPE_MAP_SINT32     PB_LTYPE_SVARINT
+#define PB_LTYPE_MAP_SINT64     PB_LTYPE_SVARINT
+#define PB_LTYPE_MAP_STRING     PB_LTYPE_STRING
+#define PB_LTYPE_MAP_UINT32     PB_LTYPE_UVARINT
+#define PB_LTYPE_MAP_UINT64     PB_LTYPE_UVARINT
+#define PB_LTYPE_MAP_EXTENSION  PB_LTYPE_EXTENSION
+
+/* This is the actual macro used in field descriptions.
+ * It takes these arguments:
+ * - Field tag number
+ * - Field type:   BOOL, BYTES, DOUBLE, ENUM, UENUM, FIXED32, FIXED64,
+ *                 FLOAT, INT32, INT64, MESSAGE, SFIXED32, SFIXED64
+ *                 SINT32, SINT64, STRING, UINT32, UINT64 or EXTENSION
+ * - Field rules:  REQUIRED, OPTIONAL or REPEATED
+ * - Allocation:   STATIC or CALLBACK
+ * - Placement: FIRST or OTHER, depending on if this is the first field in structure.
+ * - Message name
+ * - Field name
+ * - Previous field name (or field name again for first field)
+ * - Pointer to default value or submsg fields.
+ */
+
+#define PB_FIELD(tag, type, rules, allocation, placement, message, field, prevfield, ptr) \
+        PB_ ## rules ## _ ## allocation(tag, message, field, \
+        PB_DATAOFFSET_ ## placement(message, field, prevfield), \
+        PB_LTYPE_MAP_ ## type, ptr)
+
+/* Field description for oneof fields. This requires taking into account the
+ * union name also, that's why a separate set of macros is needed.
+ */
+#define PB_ONEOF_STATIC(u, tag, st, m, fd, ltype, ptr) \
+    {tag, PB_ATYPE_STATIC | PB_HTYPE_ONEOF | ltype, \
+    fd, pb_delta(st, which_ ## u, u.m), \
+    pb_membersize(st, u.m), 0, ptr}
+
+#define PB_ONEOF_POINTER(u, tag, st, m, fd, ltype, ptr) \
+    {tag, PB_ATYPE_POINTER | PB_HTYPE_ONEOF | ltype, \
+    fd, pb_delta(st, which_ ## u, u.m), \
+    pb_membersize(st, u.m[0]), 0, ptr}
+
+#define PB_ONEOF_FIELD(union_name, tag, type, rules, allocation, placement, message, field, prevfield, ptr) \
+        PB_ONEOF_ ## allocation(union_name, tag, message, field, \
+        PB_DATAOFFSET_ ## placement(message, union_name.field, prevfield), \
+        PB_LTYPE_MAP_ ## type, ptr)
+
+#define PB_ANONYMOUS_ONEOF_STATIC(u, tag, st, m, fd, ltype, ptr) \
+    {tag, PB_ATYPE_STATIC | PB_HTYPE_ONEOF | ltype, \
+    fd, pb_delta(st, which_ ## u, m), \
+    pb_membersize(st, m), 0, ptr}
+
+#define PB_ANONYMOUS_ONEOF_POINTER(u, tag, st, m, fd, ltype, ptr) \
+    {tag, PB_ATYPE_POINTER | PB_HTYPE_ONEOF | ltype, \
+    fd, pb_delta(st, which_ ## u, m), \
+    pb_membersize(st, m[0]), 0, ptr}
+
+#define PB_ANONYMOUS_ONEOF_FIELD(union_name, tag, type, rules, allocation, placement, message, field, prevfield, ptr) \
+        PB_ANONYMOUS_ONEOF_ ## allocation(union_name, tag, message, field, \
+        PB_DATAOFFSET_ ## placement(message, field, prevfield), \
+        PB_LTYPE_MAP_ ## type, ptr)
+
+/* These macros are used for giving out error messages.
+ * They are mostly a debugging aid; the main error information
+ * is the true/false return value from functions.
+ * Some code space can be saved by disabling the error
+ * messages if not used.
+ *
+ * PB_SET_ERROR() sets the error message if none has been set yet.
+ *                msg must be a constant string literal.
+ * PB_GET_ERROR() always returns a pointer to a string.
+ * PB_RETURN_ERROR() sets the error and returns false from current
+ *                   function.
+ */
+#ifdef PB_NO_ERRMSG
+#define PB_SET_ERROR(stream, msg) PB_UNUSED(stream)
+#define PB_GET_ERROR(stream) "(errmsg disabled)"
+#else
+#define PB_SET_ERROR(stream, msg) (stream->errmsg = (stream)->errmsg ? (stream)->errmsg : (msg))
+#define PB_GET_ERROR(stream) ((stream)->errmsg ? (stream)->errmsg : "(none)")
+#endif
+
+#define PB_RETURN_ERROR(stream, msg) return PB_SET_ERROR(stream, msg), false
+
+#endif
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_common.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_common.c
new file mode 100644
index 0000000..385c019
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_common.c
@@ -0,0 +1,97 @@
+/* pb_common.c: Common support functions for pb_encode.c and pb_decode.c.
+ *
+ * 2014 Petteri Aimonen <jpa@kapsi.fi>
+ */
+
+#include "pb_common.h"
+
+bool pb_field_iter_begin(pb_field_iter_t *iter, const pb_field_t *fields, void *dest_struct)
+{
+    iter->start = fields;
+    iter->pos = fields;
+    iter->required_field_index = 0;
+    iter->dest_struct = dest_struct;
+    iter->pData = (char*)dest_struct + iter->pos->data_offset;
+    iter->pSize = (char*)iter->pData + iter->pos->size_offset;
+    
+    return (iter->pos->tag != 0);
+}
+
+bool pb_field_iter_next(pb_field_iter_t *iter)
+{
+    const pb_field_t *prev_field = iter->pos;
+
+    if (prev_field->tag == 0)
+    {
+        /* Handle empty message types, where the first field is already the terminator.
+         * In other cases, the iter->pos never points to the terminator. */
+        return false;
+    }
+    
+    iter->pos++;
+    
+    if (iter->pos->tag == 0)
+    {
+        /* Wrapped back to beginning, reinitialize */
+        (void)pb_field_iter_begin(iter, iter->start, iter->dest_struct);
+        return false;
+    }
+    else
+    {
+        /* Increment the pointers based on previous field size */
+        size_t prev_size = prev_field->data_size;
+    
+        if (PB_HTYPE(prev_field->type) == PB_HTYPE_ONEOF &&
+            PB_HTYPE(iter->pos->type) == PB_HTYPE_ONEOF)
+        {
+            /* Don't advance pointers inside unions */
+            prev_size = 0;
+            iter->pData = (char*)iter->pData - prev_field->data_offset;
+        }
+        else if (PB_ATYPE(prev_field->type) == PB_ATYPE_STATIC &&
+                 PB_HTYPE(prev_field->type) == PB_HTYPE_REPEATED)
+        {
+            /* In static arrays, the data_size tells the size of a single entry and
+             * array_size is the number of entries */
+            prev_size *= prev_field->array_size;
+        }
+        else if (PB_ATYPE(prev_field->type) == PB_ATYPE_POINTER)
+        {
+            /* Pointer fields always have a constant size in the main structure.
+             * The data_size only applies to the dynamically allocated area. */
+            prev_size = sizeof(void*);
+        }
+
+        if (PB_HTYPE(prev_field->type) == PB_HTYPE_REQUIRED)
+        {
+            /* Count the required fields, in order to check their presence in the
+             * decoder. */
+            iter->required_field_index++;
+        }
+    
+        iter->pData = (char*)iter->pData + prev_size + iter->pos->data_offset;
+        iter->pSize = (char*)iter->pData + iter->pos->size_offset;
+        return true;
+    }
+}
+
+bool pb_field_iter_find(pb_field_iter_t *iter, uint32_t tag)
+{
+    const pb_field_t *start = iter->pos;
+    
+    do {
+        if (iter->pos->tag == tag &&
+            PB_LTYPE(iter->pos->type) != PB_LTYPE_EXTENSION)
+        {
+            /* Found the wanted field */
+            return true;
+        }
+        
+        (void)pb_field_iter_next(iter);
+    } while (iter->pos != start);
+    
+    /* Searched all the way back to start, and found nothing. */
+    return false;
+}
+
+
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_common.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_common.h
new file mode 100644
index 0000000..60b3d37
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_common.h
@@ -0,0 +1,42 @@
+/* pb_common.h: Common support functions for pb_encode.c and pb_decode.c.
+ * These functions are rarely needed by applications directly.
+ */
+
+#ifndef PB_COMMON_H_INCLUDED
+#define PB_COMMON_H_INCLUDED
+
+#include "pb.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Iterator for pb_field_t list */
+struct pb_field_iter_s {
+    const pb_field_t *start;       /* Start of the pb_field_t array */
+    const pb_field_t *pos;         /* Current position of the iterator */
+    unsigned required_field_index; /* Zero-based index that counts only the required fields */
+    void *dest_struct;             /* Pointer to start of the structure */
+    void *pData;                   /* Pointer to current field value */
+    void *pSize;                   /* Pointer to count/has field */
+};
+typedef struct pb_field_iter_s pb_field_iter_t;
+
+/* Initialize the field iterator structure to beginning.
+ * Returns false if the message type is empty. */
+bool pb_field_iter_begin(pb_field_iter_t *iter, const pb_field_t *fields, void *dest_struct);
+
+/* Advance the iterator to the next field.
+ * Returns false when the iterator wraps back to the first field. */
+bool pb_field_iter_next(pb_field_iter_t *iter);
+
+/* Advance the iterator until it points at a field with the given tag.
+ * Returns false if no such field exists. */
+bool pb_field_iter_find(pb_field_iter_t *iter, uint32_t tag);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif
+
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_decode.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_decode.c
new file mode 100644
index 0000000..ef69efe
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_decode.c
@@ -0,0 +1,1340 @@
+/* pb_decode.c -- decode a protobuf using minimal resources
+ *
+ * 2011 Petteri Aimonen <jpa@kapsi.fi>
+ */
+
+/* Use the GCC warn_unused_result attribute to check that all return values
+ * are propagated correctly. On other compilers and gcc before 3.4.0 just
+ * ignore the annotation.
+ */
+#if !defined(__GNUC__) || ( __GNUC__ < 3) || (__GNUC__ == 3 && __GNUC_MINOR__ < 4)
+    #define checkreturn
+#else
+    #define checkreturn __attribute__((warn_unused_result))
+#endif
+
+#include "pb.h"
+#include "pb_decode.h"
+#include "pb_common.h"
+
+/**************************************
+ * Declarations internal to this file *
+ **************************************/
+
+typedef bool (*pb_decoder_t)(pb_istream_t *stream, const pb_field_t *field, void *dest) checkreturn;
+
+static bool checkreturn buf_read(pb_istream_t *stream, pb_byte_t *buf, size_t count);
+static bool checkreturn pb_decode_varint32(pb_istream_t *stream, uint32_t *dest);
+static bool checkreturn read_raw_value(pb_istream_t *stream, pb_wire_type_t wire_type, pb_byte_t *buf, size_t *size);
+static bool checkreturn decode_static_field(pb_istream_t *stream, pb_wire_type_t wire_type, pb_field_iter_t *iter);
+static bool checkreturn decode_callback_field(pb_istream_t *stream, pb_wire_type_t wire_type, pb_field_iter_t *iter);
+static bool checkreturn decode_field(pb_istream_t *stream, pb_wire_type_t wire_type, pb_field_iter_t *iter);
+static void iter_from_extension(pb_field_iter_t *iter, pb_extension_t *extension);
+static bool checkreturn default_extension_decoder(pb_istream_t *stream, pb_extension_t *extension, uint32_t tag, pb_wire_type_t wire_type);
+static bool checkreturn decode_extension(pb_istream_t *stream, uint32_t tag, pb_wire_type_t wire_type, pb_field_iter_t *iter);
+static bool checkreturn find_extension_field(pb_field_iter_t *iter);
+static void pb_field_set_to_default(pb_field_iter_t *iter);
+static void pb_message_set_to_defaults(const pb_field_t fields[], void *dest_struct);
+static bool checkreturn pb_dec_varint(pb_istream_t *stream, const pb_field_t *field, void *dest);
+static bool checkreturn pb_dec_uvarint(pb_istream_t *stream, const pb_field_t *field, void *dest);
+static bool checkreturn pb_dec_svarint(pb_istream_t *stream, const pb_field_t *field, void *dest);
+static bool checkreturn pb_dec_fixed32(pb_istream_t *stream, const pb_field_t *field, void *dest);
+static bool checkreturn pb_dec_fixed64(pb_istream_t *stream, const pb_field_t *field, void *dest);
+static bool checkreturn pb_dec_bytes(pb_istream_t *stream, const pb_field_t *field, void *dest);
+static bool checkreturn pb_dec_string(pb_istream_t *stream, const pb_field_t *field, void *dest);
+static bool checkreturn pb_dec_submessage(pb_istream_t *stream, const pb_field_t *field, void *dest);
+static bool checkreturn pb_skip_varint(pb_istream_t *stream);
+static bool checkreturn pb_skip_string(pb_istream_t *stream);
+
+#ifdef PB_ENABLE_MALLOC
+static bool checkreturn allocate_field(pb_istream_t *stream, void *pData, size_t data_size, size_t array_size);
+static bool checkreturn pb_release_union_field(pb_istream_t *stream, pb_field_iter_t *iter);
+static void pb_release_single_field(const pb_field_iter_t *iter);
+#endif
+
+/* --- Function pointers to field decoders ---
+ * Order in the array must match pb_action_t LTYPE numbering.
+ */
+static const pb_decoder_t PB_DECODERS[PB_LTYPES_COUNT] = {
+    &pb_dec_varint,
+    &pb_dec_uvarint,
+    &pb_dec_svarint,
+    &pb_dec_fixed32,
+    &pb_dec_fixed64,
+    
+    &pb_dec_bytes,
+    &pb_dec_string,
+    &pb_dec_submessage,
+    NULL /* extensions */
+};
+
+/*******************************
+ * pb_istream_t implementation *
+ *******************************/
+
+static bool checkreturn buf_read(pb_istream_t *stream, pb_byte_t *buf, size_t count)
+{
+    const pb_byte_t *source = (const pb_byte_t*)stream->state;
+    stream->state = (pb_byte_t*)stream->state + count;
+    
+    if (buf != NULL)
+    {
+        while (count--)
+            *buf++ = *source++;
+    }
+    
+    return true;
+}
+
+bool checkreturn pb_read(pb_istream_t *stream, pb_byte_t *buf, size_t count)
+{
+#ifndef PB_BUFFER_ONLY
+	if (buf == NULL && stream->callback != buf_read)
+	{
+		/* Skip input bytes */
+		pb_byte_t tmp[16];
+		while (count > 16)
+		{
+			if (!pb_read(stream, tmp, 16))
+				return false;
+			
+			count -= 16;
+		}
+		
+		return pb_read(stream, tmp, count);
+	}
+#endif
+
+    if (stream->bytes_left < count)
+        PB_RETURN_ERROR(stream, "end-of-stream");
+    
+#ifndef PB_BUFFER_ONLY
+    if (!stream->callback(stream, buf, count))
+        PB_RETURN_ERROR(stream, "io error");
+#else
+    if (!buf_read(stream, buf, count))
+        return false;
+#endif
+    
+    stream->bytes_left -= count;
+    return true;
+}
+
+/* Read a single byte from input stream. buf may not be NULL.
+ * This is an optimization for the varint decoding. */
+static bool checkreturn pb_readbyte(pb_istream_t *stream, pb_byte_t *buf)
+{
+    if (stream->bytes_left == 0)
+        PB_RETURN_ERROR(stream, "end-of-stream");
+
+#ifndef PB_BUFFER_ONLY
+    if (!stream->callback(stream, buf, 1))
+        PB_RETURN_ERROR(stream, "io error");
+#else
+    *buf = *(const pb_byte_t*)stream->state;
+    stream->state = (pb_byte_t*)stream->state + 1;
+#endif
+
+    stream->bytes_left--;
+    
+    return true;    
+}
+
+pb_istream_t pb_istream_from_buffer(const pb_byte_t *buf, size_t bufsize)
+{
+    pb_istream_t stream;
+    /* Cast away the const from buf without a compiler error.  We are
+     * careful to use it only in a const manner in the callbacks.
+     */
+    union {
+        void *state;
+        const void *c_state;
+    } state;
+#ifdef PB_BUFFER_ONLY
+    stream.callback = NULL;
+#else
+    stream.callback = &buf_read;
+#endif
+    state.c_state = buf;
+    stream.state = state.state;
+    stream.bytes_left = bufsize;
+    stream.decoding_callback = NULL;
+#ifndef PB_NO_ERRMSG
+    stream.errmsg = NULL;
+#endif
+    return stream;
+}
+
+/********************
+ * Helper functions *
+ ********************/
+
+static bool checkreturn pb_decode_varint32(pb_istream_t *stream, uint32_t *dest)
+{
+    pb_byte_t byte;
+    uint32_t result;
+    
+    if (!pb_readbyte(stream, &byte))
+        return false;
+    
+    if ((byte & 0x80) == 0)
+    {
+        /* Quick case, 1 byte value */
+        result = byte;
+    }
+    else
+    {
+        /* Multibyte case */
+        uint_fast8_t bitpos = 7;
+        result = byte & 0x7F;
+        
+        do
+        {
+            if (bitpos >= 32)
+                PB_RETURN_ERROR(stream, "varint overflow");
+            
+            if (!pb_readbyte(stream, &byte))
+                return false;
+            
+            result |= (uint32_t)(byte & 0x7F) << bitpos;
+            bitpos = (uint_fast8_t)(bitpos + 7);
+        } while (byte & 0x80);
+   }
+   
+   *dest = result;
+   return true;
+}
+
+bool checkreturn pb_decode_varint(pb_istream_t *stream, uint64_t *dest)
+{
+    pb_byte_t byte;
+    uint_fast8_t bitpos = 0;
+    uint64_t result = 0;
+    
+    do
+    {
+        if (bitpos >= 64)
+            PB_RETURN_ERROR(stream, "varint overflow");
+        
+        if (!pb_readbyte(stream, &byte))
+            return false;
+
+        result |= (uint64_t)(byte & 0x7F) << bitpos;
+        bitpos = (uint_fast8_t)(bitpos + 7);
+    } while (byte & 0x80);
+    
+    *dest = result;
+    return true;
+}
+
+bool checkreturn pb_skip_varint(pb_istream_t *stream)
+{
+    pb_byte_t byte;
+    do
+    {
+        if (!pb_read(stream, &byte, 1))
+            return false;
+    } while (byte & 0x80);
+    return true;
+}
+
+bool checkreturn pb_skip_string(pb_istream_t *stream)
+{
+    uint32_t length;
+    if (!pb_decode_varint32(stream, &length))
+        return false;
+    
+    return pb_read(stream, NULL, length);
+}
+
+bool checkreturn pb_decode_tag(pb_istream_t *stream, pb_wire_type_t *wire_type, uint32_t *tag, bool *eof)
+{
+    uint32_t temp;
+    *eof = false;
+    *wire_type = (pb_wire_type_t) 0;
+    *tag = 0;
+    
+    if (!pb_decode_varint32(stream, &temp))
+    {
+        if (stream->bytes_left == 0)
+            *eof = true;
+
+        return false;
+    }
+    
+    if (temp == 0)
+    {
+        *eof = true; /* Special feature: allow 0-terminated messages. */
+        return false;
+    }
+    
+    *tag = temp >> 3;
+    *wire_type = (pb_wire_type_t)(temp & 7);
+    return true;
+}
+
+bool checkreturn pb_skip_field(pb_istream_t *stream, pb_wire_type_t wire_type)
+{
+    switch (wire_type)
+    {
+        case PB_WT_VARINT: return pb_skip_varint(stream);
+        case PB_WT_64BIT: return pb_read(stream, NULL, 8);
+        case PB_WT_STRING: return pb_skip_string(stream);
+        case PB_WT_32BIT: return pb_read(stream, NULL, 4);
+        default: PB_RETURN_ERROR(stream, "invalid wire_type");
+    }
+}
+
+/* Read a raw value to buffer, for the purpose of passing it to callback as
+ * a substream. Size is maximum size on call, and actual size on return.
+ */
+static bool checkreturn read_raw_value(pb_istream_t *stream, pb_wire_type_t wire_type, pb_byte_t *buf, size_t *size)
+{
+    size_t max_size = *size;
+    switch (wire_type)
+    {
+        case PB_WT_VARINT:
+            *size = 0;
+            do
+            {
+                (*size)++;
+                if (*size > max_size) return false;
+                if (!pb_read(stream, buf, 1)) return false;
+            } while (*buf++ & 0x80);
+            return true;
+            
+        case PB_WT_64BIT:
+            *size = 8;
+            return pb_read(stream, buf, 8);
+        
+        case PB_WT_32BIT:
+            *size = 4;
+            return pb_read(stream, buf, 4);
+        
+        default: PB_RETURN_ERROR(stream, "invalid wire_type");
+    }
+}
+
+/* Decode string length from stream and return a substream with limited length.
+ * Remember to close the substream using pb_close_string_substream().
+ */
+bool checkreturn pb_make_string_substream(pb_istream_t *stream, pb_istream_t *substream)
+{
+    uint32_t size;
+    if (!pb_decode_varint32(stream, &size))
+        return false;
+    
+    *substream = *stream;
+    if (substream->bytes_left < size)
+        PB_RETURN_ERROR(stream, "parent stream too short");
+    
+    substream->bytes_left = size;
+    stream->bytes_left -= size;
+    return true;
+}
+
+void pb_close_string_substream(pb_istream_t *stream, pb_istream_t *substream)
+{
+    stream->state = substream->state;
+
+#ifndef PB_NO_ERRMSG
+    stream->errmsg = substream->errmsg;
+#endif
+}
+
+/*************************
+ * Decode a single field *
+ *************************/
+
+static bool checkreturn decode_static_field(pb_istream_t *stream, pb_wire_type_t wire_type, pb_field_iter_t *iter)
+{
+    pb_type_t type;
+    pb_decoder_t func;
+    
+    type = iter->pos->type;
+    func = PB_DECODERS[PB_LTYPE(type)];
+
+    switch (PB_HTYPE(type))
+    {
+        case PB_HTYPE_REQUIRED:
+            return func(stream, iter->pos, iter->pData);
+            
+        case PB_HTYPE_OPTIONAL:
+            *(bool*)iter->pSize = true;
+            return func(stream, iter->pos, iter->pData);
+    
+        case PB_HTYPE_REPEATED:
+            if (wire_type == PB_WT_STRING
+                && PB_LTYPE(type) <= PB_LTYPE_LAST_PACKABLE)
+            {
+                /* Packed array */
+                bool status = true;
+                pb_size_t *size = (pb_size_t*)iter->pSize;
+                pb_istream_t substream;
+                if (!pb_make_string_substream(stream, &substream))
+                    return false;
+                
+                while (substream.bytes_left > 0 && *size < iter->pos->array_size)
+                {
+                    void *pItem = (char*)iter->pData + iter->pos->data_size * (*size);
+                    if (!func(&substream, iter->pos, pItem))
+                    {
+                        status = false;
+                        break;
+                    }
+                    (*size)++;
+                }
+                pb_close_string_substream(stream, &substream);
+                
+                if (substream.bytes_left != 0)
+                    PB_RETURN_ERROR(stream, "array overflow");
+                
+                return status;
+            }
+            else
+            {
+                /* Repeated field */
+                pb_size_t *size = (pb_size_t*)iter->pSize;
+                void *pItem = (char*)iter->pData + iter->pos->data_size * (*size);
+                if (*size >= iter->pos->array_size)
+                    PB_RETURN_ERROR(stream, "array overflow");
+                
+                (*size)++;
+                return func(stream, iter->pos, pItem);
+            }
+
+        case PB_HTYPE_ONEOF:
+            *(pb_size_t*)iter->pSize = iter->pos->tag;
+            if (PB_LTYPE(type) == PB_LTYPE_SUBMESSAGE)
+            {
+                /* We memset to zero so that any callbacks are set to NULL.
+                 * Then set any default values. */
+                memset(iter->pData, 0, iter->pos->data_size);
+                pb_message_set_to_defaults((const pb_field_t*)iter->pos->ptr, iter->pData);
+            }
+            return func(stream, iter->pos, iter->pData);
+
+        default:
+            PB_RETURN_ERROR(stream, "invalid field type");
+    }
+}
+
+#ifdef PB_ENABLE_MALLOC
+/* Allocate storage for the field and store the pointer at iter->pData.
+ * array_size is the number of entries to reserve in an array.
+ * Zero size is not allowed, use pb_free() for releasing.
+ */
+static bool checkreturn allocate_field(pb_istream_t *stream, void *pData, size_t data_size, size_t array_size)
+{    
+    void *ptr = *(void**)pData;
+    
+    if (data_size == 0 || array_size == 0)
+        PB_RETURN_ERROR(stream, "invalid size");
+    
+    /* Check for multiplication overflows.
+     * This code avoids the costly division if the sizes are small enough.
+     * Multiplication is safe as long as only half of bits are set
+     * in either multiplicand.
+     */
+    {
+        const size_t check_limit = (size_t)1 << (sizeof(size_t) * 4);
+        if (data_size >= check_limit || array_size >= check_limit)
+        {
+            const size_t size_max = (size_t)-1;
+            if (size_max / array_size < data_size)
+            {
+                PB_RETURN_ERROR(stream, "size too large");
+            }
+        }
+    }
+    
+    /* Allocate new or expand previous allocation */
+    /* Note: on failure the old pointer will remain in the structure,
+     * the message must be freed by caller also on error return. */
+    ptr = pb_realloc(ptr, array_size * data_size);
+    if (ptr == NULL)
+        PB_RETURN_ERROR(stream, "realloc failed");
+    
+    *(void**)pData = ptr;
+    return true;
+}
+
+/* Clear a newly allocated item in case it contains a pointer, or is a submessage. */
+static void initialize_pointer_field(void *pItem, pb_field_iter_t *iter)
+{
+    if (PB_LTYPE(iter->pos->type) == PB_LTYPE_STRING ||
+        PB_LTYPE(iter->pos->type) == PB_LTYPE_BYTES)
+    {
+        *(void**)pItem = NULL;
+    }
+    else if (PB_LTYPE(iter->pos->type) == PB_LTYPE_SUBMESSAGE)
+    {
+        pb_message_set_to_defaults((const pb_field_t *) iter->pos->ptr, pItem);
+    }
+}
+#endif
+
+static bool checkreturn decode_pointer_field(pb_istream_t *stream, pb_wire_type_t wire_type, pb_field_iter_t *iter)
+{
+#ifndef PB_ENABLE_MALLOC
+    PB_UNUSED(wire_type);
+    PB_UNUSED(iter);
+    PB_RETURN_ERROR(stream, "no malloc support");
+#else
+    pb_type_t type;
+    pb_decoder_t func;
+    
+    type = iter->pos->type;
+    func = PB_DECODERS[PB_LTYPE(type)];
+    
+    switch (PB_HTYPE(type))
+    {
+        case PB_HTYPE_REQUIRED:
+        case PB_HTYPE_OPTIONAL:
+        case PB_HTYPE_ONEOF:
+            if (PB_LTYPE(type) == PB_LTYPE_SUBMESSAGE &&
+                *(void**)iter->pData != NULL)
+            {
+                /* Duplicate field, have to release the old allocation first. */
+                pb_release_single_field(iter);
+            }
+        
+            if (PB_HTYPE(type) == PB_HTYPE_ONEOF)
+            {
+                *(pb_size_t*)iter->pSize = iter->pos->tag;
+            }
+
+            if (PB_LTYPE(type) == PB_LTYPE_STRING ||
+                PB_LTYPE(type) == PB_LTYPE_BYTES)
+            {
+                return func(stream, iter->pos, iter->pData);
+            }
+            else
+            {
+                if (!allocate_field(stream, iter->pData, iter->pos->data_size, 1))
+                    return false;
+                
+                initialize_pointer_field(*(void**)iter->pData, iter);
+                return func(stream, iter->pos, *(void**)iter->pData);
+            }
+    
+        case PB_HTYPE_REPEATED:
+            if (wire_type == PB_WT_STRING
+                && PB_LTYPE(type) <= PB_LTYPE_LAST_PACKABLE)
+            {
+                /* Packed array, multiple items come in at once. */
+                bool status = true;
+                pb_size_t *size = (pb_size_t*)iter->pSize;
+                size_t allocated_size = *size;
+                void *pItem;
+                pb_istream_t substream;
+                
+                if (!pb_make_string_substream(stream, &substream))
+                    return false;
+                
+                while (substream.bytes_left)
+                {
+                    if ((size_t)*size + 1 > allocated_size)
+                    {
+                        /* Allocate more storage. This tries to guess the
+                         * number of remaining entries. Round the division
+                         * upwards. */
+                        allocated_size += (substream.bytes_left - 1) / iter->pos->data_size + 1;
+                        
+                        if (!allocate_field(&substream, iter->pData, iter->pos->data_size, allocated_size))
+                        {
+                            status = false;
+                            break;
+                        }
+                    }
+
+                    /* Decode the array entry */
+                    pItem = *(char**)iter->pData + iter->pos->data_size * (*size);
+                    initialize_pointer_field(pItem, iter);
+                    if (!func(&substream, iter->pos, pItem))
+                    {
+                        status = false;
+                        break;
+                    }
+                    
+                    if (*size == PB_SIZE_MAX)
+                    {
+#ifndef PB_NO_ERRMSG
+                        stream->errmsg = "too many array entries";
+#endif
+                        status = false;
+                        break;
+                    }
+                    
+                    (*size)++;
+                }
+                pb_close_string_substream(stream, &substream);
+                
+                return status;
+            }
+            else
+            {
+                /* Normal repeated field, i.e. only one item at a time. */
+                pb_size_t *size = (pb_size_t*)iter->pSize;
+                void *pItem;
+                
+                if (*size == PB_SIZE_MAX)
+                    PB_RETURN_ERROR(stream, "too many array entries");
+                
+                (*size)++;
+                if (!allocate_field(stream, iter->pData, iter->pos->data_size, *size))
+                    return false;
+            
+                pItem = *(char**)iter->pData + iter->pos->data_size * (*size - 1);
+                initialize_pointer_field(pItem, iter);
+                return func(stream, iter->pos, pItem);
+            }
+
+        default:
+            PB_RETURN_ERROR(stream, "invalid field type");
+    }
+#endif
+}
+
+static bool checkreturn decode_callback_field(pb_istream_t *stream, pb_wire_type_t wire_type, pb_field_iter_t *iter)
+{
+    pb_callback_t *pCallback = (pb_callback_t*)iter->pData;
+    
+#ifdef PB_OLD_CALLBACK_STYLE
+    void *arg = pCallback->arg;
+#else
+    void **arg = &(pCallback->arg);
+#endif
+    
+    if (pCallback->funcs.decode == NULL)
+        return pb_skip_field(stream, wire_type);
+    
+    if (wire_type == PB_WT_STRING)
+    {
+        pb_istream_t substream;
+        
+        if (!pb_make_string_substream(stream, &substream))
+            return false;
+        
+        do
+        {
+            if (!pCallback->funcs.decode(&substream, iter->pos, arg))
+                PB_RETURN_ERROR(stream, "callback failed");
+        } while (substream.bytes_left);
+        
+        pb_close_string_substream(stream, &substream);
+        return true;
+    }
+    else
+    {
+        /* Copy the single scalar value to stack.
+         * This is required so that we can limit the stream length,
+         * which in turn allows to use same callback for packed and
+         * not-packed fields. */
+        pb_istream_t substream;
+        pb_byte_t buffer[10];
+        size_t size = sizeof(buffer);
+        
+        if (!read_raw_value(stream, wire_type, buffer, &size))
+            return false;
+        substream = pb_istream_from_buffer(buffer, size);
+        
+        return pCallback->funcs.decode(&substream, iter->pos, arg);
+    }
+}
+
+static bool checkreturn decode_field(pb_istream_t *stream, pb_wire_type_t wire_type, pb_field_iter_t *iter)
+{
+#ifdef PB_ENABLE_MALLOC
+    /* When decoding an oneof field, check if there is old data that must be
+     * released first. */
+    if (PB_HTYPE(iter->pos->type) == PB_HTYPE_ONEOF)
+    {
+        if (!pb_release_union_field(stream, iter))
+            return false;
+    }
+#endif
+
+    switch (PB_ATYPE(iter->pos->type))
+    {
+        case PB_ATYPE_STATIC:
+            return decode_static_field(stream, wire_type, iter);
+        
+        case PB_ATYPE_POINTER:
+            return decode_pointer_field(stream, wire_type, iter);
+        
+        case PB_ATYPE_CALLBACK:
+            return decode_callback_field(stream, wire_type, iter);
+        
+        default:
+            PB_RETURN_ERROR(stream, "invalid field type");
+    }
+}
+
+static void iter_from_extension(pb_field_iter_t *iter, pb_extension_t *extension)
+{
+    /* Fake a field iterator for the extension field.
+     * It is not actually safe to advance this iterator, but decode_field
+     * will not even try to. */
+    const pb_field_t *field = (const pb_field_t*)extension->type->arg;
+    (void)pb_field_iter_begin(iter, field, extension->dest);
+    iter->pData = extension->dest;
+    iter->pSize = &extension->found;
+    
+    if (PB_ATYPE(field->type) == PB_ATYPE_POINTER)
+    {
+        /* For pointer extensions, the pointer is stored directly
+         * in the extension structure. This avoids having an extra
+         * indirection. */
+        iter->pData = &extension->dest;
+    }
+}
+
+/* Default handler for extension fields. Expects a pb_field_t structure
+ * in extension->type->arg. */
+static bool checkreturn default_extension_decoder(pb_istream_t *stream,
+    pb_extension_t *extension, uint32_t tag, pb_wire_type_t wire_type)
+{
+    const pb_field_t *field = (const pb_field_t*)extension->type->arg;
+    pb_field_iter_t iter;
+    
+    if (field->tag != tag)
+        return true;
+    
+    iter_from_extension(&iter, extension);
+    extension->found = true;
+    return decode_field(stream, wire_type, &iter);
+}
+
+/* Try to decode an unknown field as an extension field. Tries each extension
+ * decoder in turn, until one of them handles the field or loop ends. */
+static bool checkreturn decode_extension(pb_istream_t *stream,
+    uint32_t tag, pb_wire_type_t wire_type, pb_field_iter_t *iter)
+{
+    pb_extension_t *extension = *(pb_extension_t* const *)iter->pData;
+    size_t pos = stream->bytes_left;
+    
+    while (extension != NULL && pos == stream->bytes_left)
+    {
+        bool status;
+        if (extension->type->decode)
+            status = extension->type->decode(stream, extension, tag, wire_type);
+        else
+            status = default_extension_decoder(stream, extension, tag, wire_type);
+
+        if (!status)
+            return false;
+        
+        extension = extension->next;
+    }
+    
+    return true;
+}
+
+/* Step through the iterator until an extension field is found or until all
+ * entries have been checked. There can be only one extension field per
+ * message. Returns false if no extension field is found. */
+static bool checkreturn find_extension_field(pb_field_iter_t *iter)
+{
+    const pb_field_t *start = iter->pos;
+    
+    do {
+        if (PB_LTYPE(iter->pos->type) == PB_LTYPE_EXTENSION)
+            return true;
+        (void)pb_field_iter_next(iter);
+    } while (iter->pos != start);
+    
+    return false;
+}
+
+/* Initialize message fields to default values, recursively */
+static void pb_field_set_to_default(pb_field_iter_t *iter)
+{
+    pb_type_t type;
+    type = iter->pos->type;
+    
+    if (PB_LTYPE(type) == PB_LTYPE_EXTENSION)
+    {
+        pb_extension_t *ext = *(pb_extension_t* const *)iter->pData;
+        while (ext != NULL)
+        {
+            pb_field_iter_t ext_iter;
+            ext->found = false;
+            iter_from_extension(&ext_iter, ext);
+            pb_field_set_to_default(&ext_iter);
+            ext = ext->next;
+        }
+    }
+    else if (PB_ATYPE(type) == PB_ATYPE_STATIC)
+    {
+        bool init_data = true;
+        if (PB_HTYPE(type) == PB_HTYPE_OPTIONAL)
+        {
+            /* Set has_field to false. Still initialize the optional field
+             * itself also. */
+            *(bool*)iter->pSize = false;
+        }
+        else if (PB_HTYPE(type) == PB_HTYPE_REPEATED ||
+                 PB_HTYPE(type) == PB_HTYPE_ONEOF)
+        {
+            /* REPEATED: Set array count to 0, no need to initialize contents.
+               ONEOF: Set which_field to 0. */
+            *(pb_size_t*)iter->pSize = 0;
+            init_data = false;
+        }
+
+        if (init_data)
+        {
+            if (PB_LTYPE(iter->pos->type) == PB_LTYPE_SUBMESSAGE)
+            {
+                /* Initialize submessage to defaults */
+                pb_message_set_to_defaults((const pb_field_t *) iter->pos->ptr, iter->pData);
+            }
+            else if (iter->pos->ptr != NULL)
+            {
+                /* Initialize to default value */
+                memcpy(iter->pData, iter->pos->ptr, iter->pos->data_size);
+            }
+            else
+            {
+                /* Initialize to zeros */
+                memset(iter->pData, 0, iter->pos->data_size);
+            }
+        }
+    }
+    else if (PB_ATYPE(type) == PB_ATYPE_POINTER)
+    {
+        /* Initialize the pointer to NULL. */
+        *(void**)iter->pData = NULL;
+        
+        /* Initialize array count to 0. */
+        if (PB_HTYPE(type) == PB_HTYPE_REPEATED ||
+            PB_HTYPE(type) == PB_HTYPE_ONEOF)
+        {
+            *(pb_size_t*)iter->pSize = 0;
+        }
+    }
+    else if (PB_ATYPE(type) == PB_ATYPE_CALLBACK)
+    {
+        /* Don't overwrite callback */
+    }
+}
+
+static void pb_message_set_to_defaults(const pb_field_t fields[], void *dest_struct)
+{
+    pb_field_iter_t iter;
+
+    if (!pb_field_iter_begin(&iter, fields, dest_struct))
+        return; /* Empty message type */
+    
+    do
+    {
+        pb_field_set_to_default(&iter);
+    } while (pb_field_iter_next(&iter));
+}
+
+/*********************
+ * Decode all fields *
+ *********************/
+
+bool checkreturn pb_decode_noinit(pb_istream_t *stream, const pb_field_t fields[], void *dest_struct)
+{
+    uint32_t fields_seen[(PB_MAX_REQUIRED_FIELDS + 31) / 32] = {0, 0};
+    const uint32_t allbits = ~(uint32_t)0;
+    uint32_t extension_range_start = 0;
+    pb_field_iter_t iter;
+    
+    /* Return value ignored, as empty message types will be correctly handled by
+     * pb_field_iter_find() anyway. */
+    (void)pb_field_iter_begin(&iter, fields, dest_struct);
+    
+    while (stream->bytes_left)
+    {
+        uint32_t tag;
+        pb_wire_type_t wire_type;
+        bool eof;
+        
+        if (!pb_decode_tag(stream, &wire_type, &tag, &eof))
+        {
+            if (eof)
+                break;
+            else
+                return false;
+        }
+        
+        if (!pb_field_iter_find(&iter, tag))
+        {
+            /* No match found, check if it matches an extension. */
+            if (tag >= extension_range_start)
+            {
+                if (!find_extension_field(&iter))
+                    extension_range_start = (uint32_t)-1;
+                else
+                    extension_range_start = iter.pos->tag;
+                
+                if (tag >= extension_range_start)
+                {
+                    size_t pos = stream->bytes_left;
+                
+                    if (!decode_extension(stream, tag, wire_type, &iter))
+                        return false;
+                    
+                    if (pos != stream->bytes_left)
+                    {
+                        /* The field was handled */
+                        continue;                    
+                    }
+                }
+            }
+        
+            /* No match found, skip data */
+            if (!pb_skip_field(stream, wire_type))
+                return false;
+            continue;
+        }
+        
+        if (PB_HTYPE(iter.pos->type) == PB_HTYPE_REQUIRED
+            && iter.required_field_index < PB_MAX_REQUIRED_FIELDS)
+        {
+            uint32_t tmp = ((uint32_t)1 << (iter.required_field_index & 31));
+            fields_seen[iter.required_field_index >> 5] |= tmp;
+        }
+
+        if(stream->decoding_callback)
+        {
+            stream->decoding_callback(stream, tag, wire_type, &iter);
+        }
+
+        if (!decode_field(stream, wire_type, &iter))
+            return false;
+    }
+    
+    /* Check that all required fields were present. */
+    {
+        /* First figure out the number of required fields by
+         * seeking to the end of the field array. Usually we
+         * are already close to end after decoding.
+         */
+        unsigned req_field_count;
+        pb_type_t last_type;
+        unsigned i;
+        do {
+            req_field_count = iter.required_field_index;
+            last_type = iter.pos->type;
+        } while (pb_field_iter_next(&iter));
+        
+        /* Fixup if last field was also required. */
+        if (PB_HTYPE(last_type) == PB_HTYPE_REQUIRED && iter.pos->tag != 0)
+            req_field_count++;
+        
+        if (req_field_count > 0)
+        {
+            /* Check the whole words */
+            for (i = 0; i < (req_field_count >> 5); i++)
+            {
+                if (fields_seen[i] != allbits)
+                    PB_RETURN_ERROR(stream, "missing required field");
+            }
+            
+            /* Check the remaining bits */
+            if (fields_seen[req_field_count >> 5] != (allbits >> (32 - (req_field_count & 31))))
+                PB_RETURN_ERROR(stream, "missing required field");
+        }
+    }
+    
+    return true;
+}
+
+bool checkreturn pb_decode(pb_istream_t *stream, const pb_field_t fields[], void *dest_struct)
+{
+    bool status;
+    pb_message_set_to_defaults(fields, dest_struct);
+    status = pb_decode_noinit(stream, fields, dest_struct);
+    
+#ifdef PB_ENABLE_MALLOC
+    if (!status)
+        pb_release(fields, dest_struct);
+#endif
+    
+    return status;
+}
+
+bool pb_decode_delimited(pb_istream_t *stream, const pb_field_t fields[], void *dest_struct)
+{
+    pb_istream_t substream;
+    bool status;
+    
+    if (!pb_make_string_substream(stream, &substream))
+        return false;
+    
+    status = pb_decode(&substream, fields, dest_struct);
+    pb_close_string_substream(stream, &substream);
+    return status;
+}
+
+#ifdef PB_ENABLE_MALLOC
+/* Given an oneof field, if there has already been a field inside this oneof,
+ * release it before overwriting with a different one. */
+static bool pb_release_union_field(pb_istream_t *stream, pb_field_iter_t *iter)
+{
+    pb_size_t old_tag = *(pb_size_t*)iter->pSize; /* Previous which_ value */
+    pb_size_t new_tag = iter->pos->tag; /* New which_ value */
+
+    if (old_tag == 0)
+        return true; /* Ok, no old data in union */
+
+    if (old_tag == new_tag)
+        return true; /* Ok, old data is of same type => merge */
+
+    /* Release old data. The find can fail if the message struct contains
+     * invalid data. */
+    if (!pb_field_iter_find(iter, old_tag))
+        PB_RETURN_ERROR(stream, "invalid union tag");
+
+    pb_release_single_field(iter);
+
+    /* Restore iterator to where it should be.
+     * This shouldn't fail unless the pb_field_t structure is corrupted. */
+    if (!pb_field_iter_find(iter, new_tag))
+        PB_RETURN_ERROR(stream, "iterator error");
+    
+    return true;
+}
+
+static void pb_release_single_field(const pb_field_iter_t *iter)
+{
+    pb_type_t type;
+    type = iter->pos->type;
+
+    if (PB_HTYPE(type) == PB_HTYPE_ONEOF)
+    {
+        if (*(pb_size_t*)iter->pSize != iter->pos->tag)
+            return; /* This is not the current field in the union */
+    }
+
+    /* Release anything contained inside an extension or submsg.
+     * This has to be done even if the submsg itself is statically
+     * allocated. */
+    if (PB_LTYPE(type) == PB_LTYPE_EXTENSION)
+    {
+        /* Release fields from all extensions in the linked list */
+        pb_extension_t *ext = *(pb_extension_t**)iter->pData;
+        while (ext != NULL)
+        {
+            pb_field_iter_t ext_iter;
+            iter_from_extension(&ext_iter, ext);
+            pb_release_single_field(&ext_iter);
+            ext = ext->next;
+        }
+    }
+    else if (PB_LTYPE(type) == PB_LTYPE_SUBMESSAGE)
+    {
+        /* Release fields in submessage or submsg array */
+        void *pItem = iter->pData;
+        pb_size_t count = 1;
+        
+        if (PB_ATYPE(type) == PB_ATYPE_POINTER)
+        {
+            pItem = *(void**)iter->pData;
+        }
+        
+        if (PB_HTYPE(type) == PB_HTYPE_REPEATED)
+        {
+            count = *(pb_size_t*)iter->pSize;
+        }
+        
+        if (pItem)
+        {
+            while (count--)
+            {
+                pb_release((const pb_field_t*)iter->pos->ptr, pItem);
+                pItem = (char*)pItem + iter->pos->data_size;
+            }
+        }
+    }
+    
+    if (PB_ATYPE(type) == PB_ATYPE_POINTER)
+    {
+        if (PB_HTYPE(type) == PB_HTYPE_REPEATED &&
+            (PB_LTYPE(type) == PB_LTYPE_STRING ||
+             PB_LTYPE(type) == PB_LTYPE_BYTES))
+        {
+            /* Release entries in repeated string or bytes array */
+            void **pItem = *(void***)iter->pData;
+            pb_size_t count = *(pb_size_t*)iter->pSize;
+            while (count--)
+            {
+                pb_free(*pItem);
+                *pItem++ = NULL;
+            }
+        }
+        
+        if (PB_HTYPE(type) == PB_HTYPE_REPEATED)
+        {
+            /* We are going to release the array, so set the size to 0 */
+            *(pb_size_t*)iter->pSize = 0;
+        }
+        
+        /* Release main item */
+        pb_free(*(void**)iter->pData);
+        *(void**)iter->pData = NULL;
+    }
+}
+
+void pb_release(const pb_field_t fields[], void *dest_struct)
+{
+    pb_field_iter_t iter;
+    
+    if (!dest_struct)
+        return; /* Ignore NULL pointers, similar to free() */
+
+    if (!pb_field_iter_begin(&iter, fields, dest_struct))
+        return; /* Empty message type */
+    
+    do
+    {
+        pb_release_single_field(&iter);
+    } while (pb_field_iter_next(&iter));
+}
+#endif
+
+/* Field decoders */
+
+bool pb_decode_svarint(pb_istream_t *stream, int64_t *dest)
+{
+    uint64_t value;
+    if (!pb_decode_varint(stream, &value))
+        return false;
+    
+    if (value & 1)
+        *dest = (int64_t)(~(value >> 1));
+    else
+        *dest = (int64_t)(value >> 1);
+    
+    return true;
+}
+
+bool pb_decode_fixed32(pb_istream_t *stream, void *dest)
+{
+    pb_byte_t bytes[4];
+
+    if (!pb_read(stream, bytes, 4))
+        return false;
+    
+    *(uint32_t*)dest = ((uint32_t)bytes[0] << 0) |
+                       ((uint32_t)bytes[1] << 8) |
+                       ((uint32_t)bytes[2] << 16) |
+                       ((uint32_t)bytes[3] << 24);
+    return true;
+}
+
+bool pb_decode_fixed64(pb_istream_t *stream, void *dest)
+{
+    pb_byte_t bytes[8];
+
+    if (!pb_read(stream, bytes, 8))
+        return false;
+    
+    *(uint64_t*)dest = ((uint64_t)bytes[0] << 0) |
+                       ((uint64_t)bytes[1] << 8) |
+                       ((uint64_t)bytes[2] << 16) |
+                       ((uint64_t)bytes[3] << 24) |
+                       ((uint64_t)bytes[4] << 32) |
+                       ((uint64_t)bytes[5] << 40) |
+                       ((uint64_t)bytes[6] << 48) |
+                       ((uint64_t)bytes[7] << 56);
+    
+    return true;
+}
+
+static bool checkreturn pb_dec_varint(pb_istream_t *stream, const pb_field_t *field, void *dest)
+{
+    uint64_t value;
+    int64_t svalue;
+    int64_t clamped;
+    if (!pb_decode_varint(stream, &value))
+        return false;
+    
+    /* See issue 97: Google's C++ protobuf allows negative varint values to
+     * be cast as int32_t, instead of the int64_t that should be used when
+     * encoding. Previous nanopb versions had a bug in encoding. In order to
+     * not break decoding of such messages, we cast <=32 bit fields to
+     * int32_t first to get the sign correct.
+     */
+    if (field->data_size == sizeof(int64_t))
+        svalue = (int64_t)value;
+    else
+        svalue = (int32_t)value;
+
+    /* Cast to the proper field size, while checking for overflows */
+    if (field->data_size == sizeof(int64_t))
+        clamped = *(int64_t*)dest = svalue;
+    else if (field->data_size == sizeof(int32_t))
+        clamped = *(int32_t*)dest = (int32_t)svalue;
+    else if (field->data_size == sizeof(int_least16_t))
+        clamped = *(int_least16_t*)dest = (int_least16_t)svalue;
+    else if (field->data_size == sizeof(int_least8_t))
+        clamped = *(int_least8_t*)dest = (int_least8_t)svalue;
+    else
+        PB_RETURN_ERROR(stream, "invalid data_size");
+
+    if (clamped != svalue)
+        PB_RETURN_ERROR(stream, "integer too large");
+    
+    return true;
+}
+
+static bool checkreturn pb_dec_uvarint(pb_istream_t *stream, const pb_field_t *field, void *dest)
+{
+    uint64_t value, clamped;
+    if (!pb_decode_varint(stream, &value))
+        return false;
+    
+    /* Cast to the proper field size, while checking for overflows */
+    if (field->data_size == sizeof(uint64_t))
+        clamped = *(uint64_t*)dest = value;
+    else if (field->data_size == sizeof(uint32_t))
+        clamped = *(uint32_t*)dest = (uint32_t)value;
+    else if (field->data_size == sizeof(uint_least16_t))
+        clamped = *(uint_least16_t*)dest = (uint_least16_t)value;
+    else if (field->data_size == sizeof(uint_least8_t))
+        clamped = *(uint_least8_t*)dest = (uint_least8_t)value;
+    else
+        PB_RETURN_ERROR(stream, "invalid data_size");
+    
+    if (clamped != value)
+        PB_RETURN_ERROR(stream, "integer too large");
+
+    return true;
+}
+
+static bool checkreturn pb_dec_svarint(pb_istream_t *stream, const pb_field_t *field, void *dest)
+{
+    int64_t value, clamped;
+    if (!pb_decode_svarint(stream, &value))
+        return false;
+    
+    /* Cast to the proper field size, while checking for overflows */
+    if (field->data_size == sizeof(int64_t))
+        clamped = *(int64_t*)dest = value;
+    else if (field->data_size == sizeof(int32_t))
+        clamped = *(int32_t*)dest = (int32_t)value;
+    else if (field->data_size == sizeof(int_least16_t))
+        clamped = *(int_least16_t*)dest = (int_least16_t)value;
+    else if (field->data_size == sizeof(int_least8_t))
+        clamped = *(int_least8_t*)dest = (int_least8_t)value;
+    else
+        PB_RETURN_ERROR(stream, "invalid data_size");
+
+    if (clamped != value)
+        PB_RETURN_ERROR(stream, "integer too large");
+    
+    return true;
+}
+
+static bool checkreturn pb_dec_fixed32(pb_istream_t *stream, const pb_field_t *field, void *dest)
+{
+    PB_UNUSED(field);
+    return pb_decode_fixed32(stream, dest);
+}
+
+static bool checkreturn pb_dec_fixed64(pb_istream_t *stream, const pb_field_t *field, void *dest)
+{
+    PB_UNUSED(field);
+    return pb_decode_fixed64(stream, dest);
+}
+
+static bool checkreturn pb_dec_bytes(pb_istream_t *stream, const pb_field_t *field, void *dest)
+{
+    uint32_t size;
+    size_t alloc_size;
+    pb_bytes_array_t *bdest;
+    
+    if (!pb_decode_varint32(stream, &size))
+        return false;
+    
+    if (size > PB_SIZE_MAX)
+        PB_RETURN_ERROR(stream, "bytes overflow");
+    
+    alloc_size = PB_BYTES_ARRAY_T_ALLOCSIZE(size);
+    if (size > alloc_size)
+        PB_RETURN_ERROR(stream, "size too large");
+    
+    if (PB_ATYPE(field->type) == PB_ATYPE_POINTER)
+    {
+#ifndef PB_ENABLE_MALLOC
+        PB_RETURN_ERROR(stream, "no malloc support");
+#else
+        if (!allocate_field(stream, dest, alloc_size, 1))
+            return false;
+        bdest = *(pb_bytes_array_t**)dest;
+#endif
+    }
+    else
+    {
+        if (alloc_size > field->data_size)
+            PB_RETURN_ERROR(stream, "bytes overflow");
+        bdest = (pb_bytes_array_t*)dest;
+    }
+
+    bdest->size = (pb_size_t)size;
+    return pb_read(stream, bdest->bytes, size);
+}
+
+static bool checkreturn pb_dec_string(pb_istream_t *stream, const pb_field_t *field, void *dest)
+{
+    uint32_t size;
+    size_t alloc_size;
+    bool status;
+    if (!pb_decode_varint32(stream, &size))
+        return false;
+    
+    /* Space for null terminator */
+    alloc_size = size + 1;
+    
+    if (alloc_size < size)
+        PB_RETURN_ERROR(stream, "size too large");
+    
+    if (PB_ATYPE(field->type) == PB_ATYPE_POINTER)
+    {
+#ifndef PB_ENABLE_MALLOC
+        PB_RETURN_ERROR(stream, "no malloc support");
+#else
+        if (!allocate_field(stream, dest, alloc_size, 1))
+            return false;
+        dest = *(void**)dest;
+#endif
+    }
+    else
+    {
+        if (alloc_size > field->data_size)
+            PB_RETURN_ERROR(stream, "string overflow");
+    }
+    
+    status = pb_read(stream, (pb_byte_t*)dest, size);
+    *((pb_byte_t*)dest + size) = 0;
+    return status;
+}
+
+static bool checkreturn pb_dec_submessage(pb_istream_t *stream, const pb_field_t *field, void *dest)
+{
+    bool status;
+    pb_istream_t substream;
+    const pb_field_t* submsg_fields = (const pb_field_t*)field->ptr;
+    
+    if (!pb_make_string_substream(stream, &substream))
+        return false;
+    
+    if (field->ptr == NULL)
+        PB_RETURN_ERROR(stream, "invalid field descriptor");
+    
+    /* New array entries need to be initialized, while required and optional
+     * submessages have already been initialized in the top-level pb_decode. */
+    if (PB_HTYPE(field->type) == PB_HTYPE_REPEATED)
+        status = pb_decode(&substream, submsg_fields, dest);
+    else
+        status = pb_decode_noinit(&substream, submsg_fields, dest);
+    
+    pb_close_string_substream(stream, &substream);
+    return status;
+}
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_decode.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_decode.h
new file mode 100644
index 0000000..7ab8ce7
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_decode.h
@@ -0,0 +1,152 @@
+/* pb_decode.h: Functions to decode protocol buffers. Depends on pb_decode.c.
+ * The main function is pb_decode. You also need an input stream, and the
+ * field descriptions created by nanopb_generator.py.
+ */
+
+#ifndef PB_DECODE_H_INCLUDED
+#define PB_DECODE_H_INCLUDED
+
+#include "pb.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Structure for defining custom input streams. You will need to provide
+ * a callback function to read the bytes from your storage, which can be
+ * for example a file or a network socket.
+ * 
+ * The callback must conform to these rules:
+ *
+ * 1) Return false on IO errors. This will cause decoding to abort.
+ * 2) You can use state to store your own data (e.g. buffer pointer),
+ *    and rely on pb_read to verify that no-body reads past bytes_left.
+ * 3) Your callback may be used with substreams, in which case bytes_left
+ *    is different than from the main stream. Don't use bytes_left to compute
+ *    any pointers.
+ */
+struct pb_istream_s
+{
+#ifdef PB_BUFFER_ONLY
+    /* Callback pointer is not used in buffer-only configuration.
+     * Having an int pointer here allows binary compatibility but
+     * gives an error if someone tries to assign callback function.
+     */
+    int *callback;
+#else
+    bool (*callback)(pb_istream_t *stream, pb_byte_t *buf, size_t count);
+#endif
+
+    void *state; /* Free field for use by callback implementation */
+    size_t bytes_left;
+    
+    /* Informative callback for field decoding */
+    void (* decoding_callback)(pb_istream_t *strem, uint32_t tag, pb_wire_type_t wire_type, void *iter);
+
+#ifndef PB_NO_ERRMSG
+    const char *errmsg;
+#endif
+};
+
+/***************************
+ * Main decoding functions *
+ ***************************/
+ 
+/* Decode a single protocol buffers message from input stream into a C structure.
+ * Returns true on success, false on any failure.
+ * The actual struct pointed to by dest must match the description in fields.
+ * Callback fields of the destination structure must be initialized by caller.
+ * All other fields will be initialized by this function.
+ *
+ * Example usage:
+ *    MyMessage msg = {};
+ *    uint8_t buffer[64];
+ *    pb_istream_t stream;
+ *    
+ *    // ... read some data into buffer ...
+ *
+ *    stream = pb_istream_from_buffer(buffer, count);
+ *    pb_decode(&stream, MyMessage_fields, &msg);
+ */
+bool pb_decode(pb_istream_t *stream, const pb_field_t fields[], void *dest_struct);
+
+/* Same as pb_decode, except does not initialize the destination structure
+ * to default values. This is slightly faster if you need no default values
+ * and just do memset(struct, 0, sizeof(struct)) yourself.
+ *
+ * This can also be used for 'merging' two messages, i.e. update only the
+ * fields that exist in the new message.
+ *
+ * Note: If this function returns with an error, it will not release any
+ * dynamically allocated fields. You will need to call pb_release() yourself.
+ */
+bool pb_decode_noinit(pb_istream_t *stream, const pb_field_t fields[], void *dest_struct);
+
+/* Same as pb_decode, except expects the stream to start with the message size
+ * encoded as varint. Corresponds to parseDelimitedFrom() in Google's
+ * protobuf API.
+ */
+bool pb_decode_delimited(pb_istream_t *stream, const pb_field_t fields[], void *dest_struct);
+
+#ifdef PB_ENABLE_MALLOC
+/* Release any allocated pointer fields. If you use dynamic allocation, you should
+ * call this for any successfully decoded message when you are done with it. If
+ * pb_decode() returns with an error, the message is already released.
+ */
+void pb_release(const pb_field_t fields[], void *dest_struct);
+#endif
+
+
+/**************************************
+ * Functions for manipulating streams *
+ **************************************/
+
+/* Create an input stream for reading from a memory buffer.
+ *
+ * Alternatively, you can use a custom stream that reads directly from e.g.
+ * a file or a network socket.
+ */
+pb_istream_t pb_istream_from_buffer(const pb_byte_t *buf, size_t bufsize);
+
+/* Function to read from a pb_istream_t. You can use this if you need to
+ * read some custom header data, or to read data in field callbacks.
+ */
+bool pb_read(pb_istream_t *stream, pb_byte_t *buf, size_t count);
+
+
+/************************************************
+ * Helper functions for writing field callbacks *
+ ************************************************/
+
+/* Decode the tag for the next field in the stream. Gives the wire type and
+ * field tag. At end of the message, returns false and sets eof to true. */
+bool pb_decode_tag(pb_istream_t *stream, pb_wire_type_t *wire_type, uint32_t *tag, bool *eof);
+
+/* Skip the field payload data, given the wire type. */
+bool pb_skip_field(pb_istream_t *stream, pb_wire_type_t wire_type);
+
+/* Decode an integer in the varint format. This works for bool, enum, int32,
+ * int64, uint32 and uint64 field types. */
+bool pb_decode_varint(pb_istream_t *stream, uint64_t *dest);
+
+/* Decode an integer in the zig-zagged svarint format. This works for sint32
+ * and sint64. */
+bool pb_decode_svarint(pb_istream_t *stream, int64_t *dest);
+
+/* Decode a fixed32, sfixed32 or float value. You need to pass a pointer to
+ * a 4-byte wide C variable. */
+bool pb_decode_fixed32(pb_istream_t *stream, void *dest);
+
+/* Decode a fixed64, sfixed64 or double value. You need to pass a pointer to
+ * a 8-byte wide C variable. */
+bool pb_decode_fixed64(pb_istream_t *stream, void *dest);
+
+/* Make a limited-length substream for reading a PB_WT_STRING field. */
+bool pb_make_string_substream(pb_istream_t *stream, pb_istream_t *substream);
+void pb_close_string_substream(pb_istream_t *stream, pb_istream_t *substream);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_encode.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_encode.c
new file mode 100644
index 0000000..9f91c9d
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_encode.c
@@ -0,0 +1,689 @@
+/* pb_encode.c -- encode a protobuf using minimal resources
+ *
+ * 2011 Petteri Aimonen <jpa@kapsi.fi>
+ */
+
+#include "pb.h"
+#include "pb_encode.h"
+#include "pb_common.h"
+
+/* Use the GCC warn_unused_result attribute to check that all return values
+ * are propagated correctly. On other compilers and gcc before 3.4.0 just
+ * ignore the annotation.
+ */
+#if !defined(__GNUC__) || ( __GNUC__ < 3) || (__GNUC__ == 3 && __GNUC_MINOR__ < 4)
+    #define checkreturn
+#else
+    #define checkreturn __attribute__((warn_unused_result))
+#endif
+
+/**************************************
+ * Declarations internal to this file *
+ **************************************/
+typedef bool (*pb_encoder_t)(pb_ostream_t *stream, const pb_field_t *field, const void *src) checkreturn;
+
+static bool checkreturn buf_write(pb_ostream_t *stream, const pb_byte_t *buf, size_t count);
+static bool checkreturn encode_array(pb_ostream_t *stream, const pb_field_t *field, const void *pData, size_t count, pb_encoder_t func);
+static bool checkreturn encode_field(pb_ostream_t *stream, const pb_field_t *field, const void *pData);
+static bool checkreturn default_extension_encoder(pb_ostream_t *stream, const pb_extension_t *extension);
+static bool checkreturn encode_extension_field(pb_ostream_t *stream, const pb_field_t *field, const void *pData);
+static bool checkreturn pb_enc_varint(pb_ostream_t *stream, const pb_field_t *field, const void *src);
+static bool checkreturn pb_enc_uvarint(pb_ostream_t *stream, const pb_field_t *field, const void *src);
+static bool checkreturn pb_enc_svarint(pb_ostream_t *stream, const pb_field_t *field, const void *src);
+static bool checkreturn pb_enc_fixed32(pb_ostream_t *stream, const pb_field_t *field, const void *src);
+static bool checkreturn pb_enc_fixed64(pb_ostream_t *stream, const pb_field_t *field, const void *src);
+static bool checkreturn pb_enc_bytes(pb_ostream_t *stream, const pb_field_t *field, const void *src);
+static bool checkreturn pb_enc_string(pb_ostream_t *stream, const pb_field_t *field, const void *src);
+static bool checkreturn pb_enc_submessage(pb_ostream_t *stream, const pb_field_t *field, const void *src);
+
+/* --- Function pointers to field encoders ---
+ * Order in the array must match pb_action_t LTYPE numbering.
+ */
+static const pb_encoder_t PB_ENCODERS[PB_LTYPES_COUNT] = {
+    &pb_enc_varint,
+    &pb_enc_uvarint,
+    &pb_enc_svarint,
+    &pb_enc_fixed32,
+    &pb_enc_fixed64,
+    
+    &pb_enc_bytes,
+    &pb_enc_string,
+    &pb_enc_submessage,
+    NULL /* extensions */
+};
+
+/*******************************
+ * pb_ostream_t implementation *
+ *******************************/
+
+static bool checkreturn buf_write(pb_ostream_t *stream, const pb_byte_t *buf, size_t count)
+{
+    pb_byte_t *dest = (pb_byte_t*)stream->state;
+    stream->state = dest + count;
+    
+    while (count--)
+        *dest++ = *buf++;
+    
+    return true;
+}
+
+pb_ostream_t pb_ostream_from_buffer(pb_byte_t *buf, size_t bufsize)
+{
+    pb_ostream_t stream;
+#ifdef PB_BUFFER_ONLY
+    stream.callback = (void*)1; /* Just a marker value */
+#else
+    stream.callback = &buf_write;
+#endif
+    stream.state = buf;
+    stream.max_size = bufsize;
+    stream.bytes_written = 0;
+#ifndef PB_NO_ERRMSG
+    stream.errmsg = NULL;
+#endif
+    return stream;
+}
+
+bool checkreturn pb_write(pb_ostream_t *stream, const pb_byte_t *buf, size_t count)
+{
+    if (stream->callback != NULL)
+    {
+        if (stream->bytes_written + count > stream->max_size)
+            PB_RETURN_ERROR(stream, "stream full");
+
+#ifdef PB_BUFFER_ONLY
+        if (!buf_write(stream, buf, count))
+            PB_RETURN_ERROR(stream, "io error");
+#else        
+        if (!stream->callback(stream, buf, count))
+            PB_RETURN_ERROR(stream, "io error");
+#endif
+    }
+    
+    stream->bytes_written += count;
+    return true;
+}
+
+/*************************
+ * Encode a single field *
+ *************************/
+
+/* Encode a static array. Handles the size calculations and possible packing. */
+static bool checkreturn encode_array(pb_ostream_t *stream, const pb_field_t *field,
+                         const void *pData, size_t count, pb_encoder_t func)
+{
+    size_t i;
+    const void *p;
+    size_t size;
+    
+    if (count == 0)
+        return true;
+
+    if (PB_ATYPE(field->type) != PB_ATYPE_POINTER && count > field->array_size)
+        PB_RETURN_ERROR(stream, "array max size exceeded");
+    
+    /* We always pack arrays if the datatype allows it. */
+    if (PB_LTYPE(field->type) <= PB_LTYPE_LAST_PACKABLE)
+    {
+        if (!pb_encode_tag(stream, PB_WT_STRING, field->tag))
+            return false;
+        
+        /* Determine the total size of packed array. */
+        if (PB_LTYPE(field->type) == PB_LTYPE_FIXED32)
+        {
+            size = 4 * count;
+        }
+        else if (PB_LTYPE(field->type) == PB_LTYPE_FIXED64)
+        {
+            size = 8 * count;
+        }
+        else
+        { 
+            pb_ostream_t sizestream = PB_OSTREAM_SIZING;
+            p = pData;
+            for (i = 0; i < count; i++)
+            {
+                if (!func(&sizestream, field, p))
+                    return false;
+                p = (const char*)p + field->data_size;
+            }
+            size = sizestream.bytes_written;
+        }
+        
+        if (!pb_encode_varint(stream, (uint64_t)size))
+            return false;
+        
+        if (stream->callback == NULL)
+            return pb_write(stream, NULL, size); /* Just sizing.. */
+        
+        /* Write the data */
+        p = pData;
+        for (i = 0; i < count; i++)
+        {
+            if (!func(stream, field, p))
+                return false;
+            p = (const char*)p + field->data_size;
+        }
+    }
+    else
+    {
+        p = pData;
+        for (i = 0; i < count; i++)
+        {
+            if (!pb_encode_tag_for_field(stream, field))
+                return false;
+
+            /* Normally the data is stored directly in the array entries, but
+             * for pointer-type string and bytes fields, the array entries are
+             * actually pointers themselves also. So we have to dereference once
+             * more to get to the actual data. */
+            if (PB_ATYPE(field->type) == PB_ATYPE_POINTER &&
+                (PB_LTYPE(field->type) == PB_LTYPE_STRING ||
+                 PB_LTYPE(field->type) == PB_LTYPE_BYTES))
+            {
+                if (!func(stream, field, *(const void* const*)p))
+                    return false;      
+            }
+            else
+            {
+                if (!func(stream, field, p))
+                    return false;
+            }
+            p = (const char*)p + field->data_size;
+        }
+    }
+    
+    return true;
+}
+
+/* Encode a field with static or pointer allocation, i.e. one whose data
+ * is available to the encoder directly. */
+static bool checkreturn encode_basic_field(pb_ostream_t *stream,
+    const pb_field_t *field, const void *pData)
+{
+    pb_encoder_t func;
+    const void *pSize;
+    bool implicit_has = true;
+    
+    func = PB_ENCODERS[PB_LTYPE(field->type)];
+    
+    if (field->size_offset)
+        pSize = (const char*)pData + field->size_offset;
+    else
+        pSize = &implicit_has;
+
+    if (PB_ATYPE(field->type) == PB_ATYPE_POINTER)
+    {
+        /* pData is a pointer to the field, which contains pointer to
+         * the data. If the 2nd pointer is NULL, it is interpreted as if
+         * the has_field was false.
+         */
+        
+        pData = *(const void* const*)pData;
+        implicit_has = (pData != NULL);
+    }
+
+    switch (PB_HTYPE(field->type))
+    {
+        case PB_HTYPE_REQUIRED:
+            if (!pData)
+                PB_RETURN_ERROR(stream, "missing required field");
+            if (!pb_encode_tag_for_field(stream, field))
+                return false;
+            if (!func(stream, field, pData))
+                return false;
+            break;
+        
+        case PB_HTYPE_OPTIONAL:
+            if (*(const bool*)pSize)
+            {
+                if (!pb_encode_tag_for_field(stream, field))
+                    return false;
+            
+                if (!func(stream, field, pData))
+                    return false;
+            }
+            break;
+        
+        case PB_HTYPE_REPEATED:
+            if (!encode_array(stream, field, pData, *(const pb_size_t*)pSize, func))
+                return false;
+            break;
+        
+        case PB_HTYPE_ONEOF:
+            if (*(const pb_size_t*)pSize == field->tag)
+            {
+                if (!pb_encode_tag_for_field(stream, field))
+                    return false;
+
+                if (!func(stream, field, pData))
+                    return false;
+            }
+            break;
+            
+        default:
+            PB_RETURN_ERROR(stream, "invalid field type");
+    }
+    
+    return true;
+}
+
+/* Encode a field with callback semantics. This means that a user function is
+ * called to provide and encode the actual data. */
+static bool checkreturn encode_callback_field(pb_ostream_t *stream,
+    const pb_field_t *field, const void *pData)
+{
+    const pb_callback_t *callback = (const pb_callback_t*)pData;
+    
+#ifdef PB_OLD_CALLBACK_STYLE
+    const void *arg = callback->arg;
+#else
+    void * const *arg = &(callback->arg);
+#endif    
+    
+    if (callback->funcs.encode != NULL)
+    {
+        if (!callback->funcs.encode(stream, field, arg))
+            PB_RETURN_ERROR(stream, "callback error");
+    }
+    return true;
+}
+
+/* Encode a single field of any callback or static type. */
+static bool checkreturn encode_field(pb_ostream_t *stream,
+    const pb_field_t *field, const void *pData)
+{
+    switch (PB_ATYPE(field->type))
+    {
+        case PB_ATYPE_STATIC:
+        case PB_ATYPE_POINTER:
+            return encode_basic_field(stream, field, pData);
+        
+        case PB_ATYPE_CALLBACK:
+            return encode_callback_field(stream, field, pData);
+        
+        default:
+            PB_RETURN_ERROR(stream, "invalid field type");
+    }
+}
+
+/* Default handler for extension fields. Expects to have a pb_field_t
+ * pointer in the extension->type->arg field. */
+static bool checkreturn default_extension_encoder(pb_ostream_t *stream,
+    const pb_extension_t *extension)
+{
+    const pb_field_t *field = (const pb_field_t*)extension->type->arg;
+    
+    if (PB_ATYPE(field->type) == PB_ATYPE_POINTER)
+    {
+        /* For pointer extensions, the pointer is stored directly
+         * in the extension structure. This avoids having an extra
+         * indirection. */
+        return encode_field(stream, field, &extension->dest);
+    }
+    else
+    {
+        return encode_field(stream, field, extension->dest);
+    }
+}
+
+/* Walk through all the registered extensions and give them a chance
+ * to encode themselves. */
+static bool checkreturn encode_extension_field(pb_ostream_t *stream,
+    const pb_field_t *field, const void *pData)
+{
+    const pb_extension_t *extension = *(const pb_extension_t* const *)pData;
+    PB_UNUSED(field);
+    
+    while (extension)
+    {
+        bool status;
+        if (extension->type->encode)
+            status = extension->type->encode(stream, extension);
+        else
+            status = default_extension_encoder(stream, extension);
+
+        if (!status)
+            return false;
+        
+        extension = extension->next;
+    }
+    
+    return true;
+}
+
+/*********************
+ * Encode all fields *
+ *********************/
+
+static void *remove_const(const void *p)
+{
+    /* Note: this casts away const, in order to use the common field iterator
+     * logic for both encoding and decoding. */
+    union {
+        void *p1;
+        const void *p2;
+    } t;
+    t.p2 = p;
+    return t.p1;
+}
+
+bool checkreturn pb_encode(pb_ostream_t *stream, const pb_field_t fields[], const void *src_struct)
+{
+    pb_field_iter_t iter;
+    if (!pb_field_iter_begin(&iter, fields, remove_const(src_struct)))
+        return true; /* Empty message type */
+    
+    do {
+        if (PB_LTYPE(iter.pos->type) == PB_LTYPE_EXTENSION)
+        {
+            /* Special case for the extension field placeholder */
+            if (!encode_extension_field(stream, iter.pos, iter.pData))
+                return false;
+        }
+        else
+        {
+            /* Regular field */
+            if (!encode_field(stream, iter.pos, iter.pData))
+                return false;
+        }
+    } while (pb_field_iter_next(&iter));
+    
+    return true;
+}
+
+bool pb_encode_delimited(pb_ostream_t *stream, const pb_field_t fields[], const void *src_struct)
+{
+    return pb_encode_submessage(stream, fields, src_struct);
+}
+
+bool pb_get_encoded_size(size_t *size, const pb_field_t fields[], const void *src_struct)
+{
+    pb_ostream_t stream = PB_OSTREAM_SIZING;
+    
+    if (!pb_encode(&stream, fields, src_struct))
+        return false;
+    
+    *size = stream.bytes_written;
+    return true;
+}
+
+/********************
+ * Helper functions *
+ ********************/
+bool checkreturn pb_encode_varint(pb_ostream_t *stream, uint64_t value)
+{
+    pb_byte_t buffer[10];
+    size_t i = 0;
+    
+    if (value <= 0x7F)
+    {
+        pb_byte_t v = (pb_byte_t)value;
+        return pb_write(stream, &v, 1);
+    }
+    
+    while (value)
+    {
+        buffer[i] = (pb_byte_t)((value & 0x7F) | 0x80);
+        value >>= 7;
+        i++;
+    }
+    buffer[i-1] &= 0x7F; /* Unset top bit on last byte */
+    
+    return pb_write(stream, buffer, i);
+}
+
+bool checkreturn pb_encode_svarint(pb_ostream_t *stream, int64_t value)
+{
+    uint64_t zigzagged;
+    if (value < 0)
+        zigzagged = ~((uint64_t)value << 1);
+    else
+        zigzagged = (uint64_t)value << 1;
+    
+    return pb_encode_varint(stream, zigzagged);
+}
+
+bool checkreturn pb_encode_fixed32(pb_ostream_t *stream, const void *value)
+{
+    uint32_t val = *(const uint32_t*)value;
+    pb_byte_t bytes[4];
+    bytes[0] = (pb_byte_t)(val & 0xFF);
+    bytes[1] = (pb_byte_t)((val >> 8) & 0xFF);
+    bytes[2] = (pb_byte_t)((val >> 16) & 0xFF);
+    bytes[3] = (pb_byte_t)((val >> 24) & 0xFF);
+    return pb_write(stream, bytes, 4);
+}
+
+bool checkreturn pb_encode_fixed64(pb_ostream_t *stream, const void *value)
+{
+    uint64_t val = *(const uint64_t*)value;
+    pb_byte_t bytes[8];
+    bytes[0] = (pb_byte_t)(val & 0xFF);
+    bytes[1] = (pb_byte_t)((val >> 8) & 0xFF);
+    bytes[2] = (pb_byte_t)((val >> 16) & 0xFF);
+    bytes[3] = (pb_byte_t)((val >> 24) & 0xFF);
+    bytes[4] = (pb_byte_t)((val >> 32) & 0xFF);
+    bytes[5] = (pb_byte_t)((val >> 40) & 0xFF);
+    bytes[6] = (pb_byte_t)((val >> 48) & 0xFF);
+    bytes[7] = (pb_byte_t)((val >> 56) & 0xFF);
+    return pb_write(stream, bytes, 8);
+}
+
+bool checkreturn pb_encode_tag(pb_ostream_t *stream, pb_wire_type_t wiretype, uint32_t field_number)
+{
+    uint64_t tag = ((uint64_t)field_number << 3) | wiretype;
+    return pb_encode_varint(stream, tag);
+}
+
+bool checkreturn pb_encode_tag_for_field(pb_ostream_t *stream, const pb_field_t *field)
+{
+    pb_wire_type_t wiretype;
+    switch (PB_LTYPE(field->type))
+    {
+        case PB_LTYPE_VARINT:
+        case PB_LTYPE_UVARINT:
+        case PB_LTYPE_SVARINT:
+            wiretype = PB_WT_VARINT;
+            break;
+        
+        case PB_LTYPE_FIXED32:
+            wiretype = PB_WT_32BIT;
+            break;
+        
+        case PB_LTYPE_FIXED64:
+            wiretype = PB_WT_64BIT;
+            break;
+        
+        case PB_LTYPE_BYTES:
+        case PB_LTYPE_STRING:
+        case PB_LTYPE_SUBMESSAGE:
+            wiretype = PB_WT_STRING;
+            break;
+        
+        default:
+            PB_RETURN_ERROR(stream, "invalid field type");
+    }
+    
+    return pb_encode_tag(stream, wiretype, field->tag);
+}
+
+bool checkreturn pb_encode_string(pb_ostream_t *stream, const pb_byte_t *buffer, size_t size)
+{
+    if (!pb_encode_varint(stream, (uint64_t)size))
+        return false;
+    
+    return pb_write(stream, buffer, size);
+}
+
+bool checkreturn pb_encode_submessage(pb_ostream_t *stream, const pb_field_t fields[], const void *src_struct)
+{
+    /* First calculate the message size using a non-writing substream. */
+    pb_ostream_t substream = PB_OSTREAM_SIZING;
+    size_t size;
+    bool status;
+    
+    if (!pb_encode(&substream, fields, src_struct))
+    {
+#ifndef PB_NO_ERRMSG
+        stream->errmsg = substream.errmsg;
+#endif
+        return false;
+    }
+    
+    size = substream.bytes_written;
+    
+    if (!pb_encode_varint(stream, (uint64_t)size))
+        return false;
+    
+    if (stream->callback == NULL)
+        return pb_write(stream, NULL, size); /* Just sizing */
+    
+    if (stream->bytes_written + size > stream->max_size)
+        PB_RETURN_ERROR(stream, "stream full");
+        
+    /* Use a substream to verify that a callback doesn't write more than
+     * what it did the first time. */
+    substream.callback = stream->callback;
+    substream.state = stream->state;
+    substream.max_size = size;
+    substream.bytes_written = 0;
+#ifndef PB_NO_ERRMSG
+    substream.errmsg = NULL;
+#endif
+    
+    status = pb_encode(&substream, fields, src_struct);
+    
+    stream->bytes_written += substream.bytes_written;
+    stream->state = substream.state;
+#ifndef PB_NO_ERRMSG
+    stream->errmsg = substream.errmsg;
+#endif
+    
+    if (substream.bytes_written != size)
+        PB_RETURN_ERROR(stream, "submsg size changed");
+    
+    return status;
+}
+
+/* Field encoders */
+
+static bool checkreturn pb_enc_varint(pb_ostream_t *stream, const pb_field_t *field, const void *src)
+{
+    int64_t value = 0;
+    
+    if (field->data_size == sizeof(int_least8_t))
+        value = *(const int_least8_t*)src;
+    else if (field->data_size == sizeof(int_least16_t))
+        value = *(const int_least16_t*)src;
+    else if (field->data_size == sizeof(int32_t))
+        value = *(const int32_t*)src;
+    else if (field->data_size == sizeof(int64_t))
+        value = *(const int64_t*)src;
+    else
+        PB_RETURN_ERROR(stream, "invalid data_size");
+    
+    return pb_encode_varint(stream, (uint64_t)value);
+}
+
+static bool checkreturn pb_enc_uvarint(pb_ostream_t *stream, const pb_field_t *field, const void *src)
+{
+    uint64_t value = 0;
+    
+    if (field->data_size == sizeof(uint_least8_t))
+        value = *(const uint_least8_t*)src;
+    else if (field->data_size == sizeof(uint_least16_t))
+        value = *(const uint_least16_t*)src;
+    else if (field->data_size == sizeof(uint32_t))
+        value = *(const uint32_t*)src;
+    else if (field->data_size == sizeof(uint64_t))
+        value = *(const uint64_t*)src;
+    else
+        PB_RETURN_ERROR(stream, "invalid data_size");
+    
+    return pb_encode_varint(stream, value);
+}
+
+static bool checkreturn pb_enc_svarint(pb_ostream_t *stream, const pb_field_t *field, const void *src)
+{
+    int64_t value = 0;
+    
+    if (field->data_size == sizeof(int_least8_t))
+        value = *(const int_least8_t*)src;
+    else if (field->data_size == sizeof(int_least16_t))
+        value = *(const int_least16_t*)src;
+    else if (field->data_size == sizeof(int32_t))
+        value = *(const int32_t*)src;
+    else if (field->data_size == sizeof(int64_t))
+        value = *(const int64_t*)src;
+    else
+        PB_RETURN_ERROR(stream, "invalid data_size");
+    
+    return pb_encode_svarint(stream, value);
+}
+
+static bool checkreturn pb_enc_fixed64(pb_ostream_t *stream, const pb_field_t *field, const void *src)
+{
+    PB_UNUSED(field);
+    return pb_encode_fixed64(stream, src);
+}
+
+static bool checkreturn pb_enc_fixed32(pb_ostream_t *stream, const pb_field_t *field, const void *src)
+{
+    PB_UNUSED(field);
+    return pb_encode_fixed32(stream, src);
+}
+
+static bool checkreturn pb_enc_bytes(pb_ostream_t *stream, const pb_field_t *field, const void *src)
+{
+    const pb_bytes_array_t *bytes = (const pb_bytes_array_t*)src;
+    
+    if (src == NULL)
+    {
+        /* Threat null pointer as an empty bytes field */
+        return pb_encode_string(stream, NULL, 0);
+    }
+    
+    if (PB_ATYPE(field->type) == PB_ATYPE_STATIC &&
+        PB_BYTES_ARRAY_T_ALLOCSIZE(bytes->size) > field->data_size)
+    {
+        PB_RETURN_ERROR(stream, "bytes size exceeded");
+    }
+    
+    return pb_encode_string(stream, bytes->bytes, bytes->size);
+}
+
+static bool checkreturn pb_enc_string(pb_ostream_t *stream, const pb_field_t *field, const void *src)
+{
+    size_t size = 0;
+    size_t max_size = field->data_size;
+    const char *p = (const char*)src;
+    
+    if (PB_ATYPE(field->type) == PB_ATYPE_POINTER)
+        max_size = (size_t)-1;
+
+    if (src == NULL)
+    {
+        size = 0; /* Threat null pointer as an empty string */
+    }
+    else
+    {
+        /* strnlen() is not always available, so just use a loop */
+        while (size < max_size && *p != '\0')
+        {
+            size++;
+            p++;
+        }
+    }
+
+    return pb_encode_string(stream, (const pb_byte_t*)src, size);
+}
+
+static bool checkreturn pb_enc_submessage(pb_ostream_t *stream, const pb_field_t *field, const void *src)
+{
+    if (field->ptr == NULL)
+        PB_RETURN_ERROR(stream, "invalid field descriptor");
+    
+    return pb_encode_submessage(stream, (const pb_field_t*)field->ptr, src);
+}
+
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_encode.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_encode.h
new file mode 100644
index 0000000..d9909fb
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/external/nano-pb/pb_encode.h
@@ -0,0 +1,154 @@
+/* pb_encode.h: Functions to encode protocol buffers. Depends on pb_encode.c.
+ * The main function is pb_encode. You also need an output stream, and the
+ * field descriptions created by nanopb_generator.py.
+ */
+
+#ifndef PB_ENCODE_H_INCLUDED
+#define PB_ENCODE_H_INCLUDED
+
+#include "pb.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Structure for defining custom output streams. You will need to provide
+ * a callback function to write the bytes to your storage, which can be
+ * for example a file or a network socket.
+ *
+ * The callback must conform to these rules:
+ *
+ * 1) Return false on IO errors. This will cause encoding to abort.
+ * 2) You can use state to store your own data (e.g. buffer pointer).
+ * 3) pb_write will update bytes_written after your callback runs.
+ * 4) Substreams will modify max_size and bytes_written. Don't use them
+ *    to calculate any pointers.
+ */
+struct pb_ostream_s
+{
+#ifdef PB_BUFFER_ONLY
+    /* Callback pointer is not used in buffer-only configuration.
+     * Having an int pointer here allows binary compatibility but
+     * gives an error if someone tries to assign callback function.
+     * Also, NULL pointer marks a 'sizing stream' that does not
+     * write anything.
+     */
+    int *callback;
+#else
+    bool (*callback)(pb_ostream_t *stream, const pb_byte_t *buf, size_t count);
+#endif
+    void *state;          /* Free field for use by callback implementation. */
+    size_t max_size;      /* Limit number of output bytes written (or use SIZE_MAX). */
+    size_t bytes_written; /* Number of bytes written so far. */
+    
+#ifndef PB_NO_ERRMSG
+    const char *errmsg;
+#endif
+};
+
+/***************************
+ * Main encoding functions *
+ ***************************/
+
+/* Encode a single protocol buffers message from C structure into a stream.
+ * Returns true on success, false on any failure.
+ * The actual struct pointed to by src_struct must match the description in fields.
+ * All required fields in the struct are assumed to have been filled in.
+ *
+ * Example usage:
+ *    MyMessage msg = {};
+ *    uint8_t buffer[64];
+ *    pb_ostream_t stream;
+ *
+ *    msg.field1 = 42;
+ *    stream = pb_ostream_from_buffer(buffer, sizeof(buffer));
+ *    pb_encode(&stream, MyMessage_fields, &msg);
+ */
+bool pb_encode(pb_ostream_t *stream, const pb_field_t fields[], const void *src_struct);
+
+/* Same as pb_encode, but prepends the length of the message as a varint.
+ * Corresponds to writeDelimitedTo() in Google's protobuf API.
+ */
+bool pb_encode_delimited(pb_ostream_t *stream, const pb_field_t fields[], const void *src_struct);
+
+/* Encode the message to get the size of the encoded data, but do not store
+ * the data. */
+bool pb_get_encoded_size(size_t *size, const pb_field_t fields[], const void *src_struct);
+
+/**************************************
+ * Functions for manipulating streams *
+ **************************************/
+
+/* Create an output stream for writing into a memory buffer.
+ * The number of bytes written can be found in stream.bytes_written after
+ * encoding the message.
+ *
+ * Alternatively, you can use a custom stream that writes directly to e.g.
+ * a file or a network socket.
+ */
+pb_ostream_t pb_ostream_from_buffer(pb_byte_t *buf, size_t bufsize);
+
+/* Pseudo-stream for measuring the size of a message without actually storing
+ * the encoded data.
+ * 
+ * Example usage:
+ *    MyMessage msg = {};
+ *    pb_ostream_t stream = PB_OSTREAM_SIZING;
+ *    pb_encode(&stream, MyMessage_fields, &msg);
+ *    printf("Message size is %d\n", stream.bytes_written);
+ */
+#ifndef PB_NO_ERRMSG
+#define PB_OSTREAM_SIZING {0,0,0,0,0}
+#else
+#define PB_OSTREAM_SIZING {0,0,0,0}
+#endif
+
+/* Function to write into a pb_ostream_t stream. You can use this if you need
+ * to append or prepend some custom headers to the message.
+ */
+bool pb_write(pb_ostream_t *stream, const pb_byte_t *buf, size_t count);
+
+
+/************************************************
+ * Helper functions for writing field callbacks *
+ ************************************************/
+
+/* Encode field header based on type and field number defined in the field
+ * structure. Call this from the callback before writing out field contents. */
+bool pb_encode_tag_for_field(pb_ostream_t *stream, const pb_field_t *field);
+
+/* Encode field header by manually specifing wire type. You need to use this
+ * if you want to write out packed arrays from a callback field. */
+bool pb_encode_tag(pb_ostream_t *stream, pb_wire_type_t wiretype, uint32_t field_number);
+
+/* Encode an integer in the varint format.
+ * This works for bool, enum, int32, int64, uint32 and uint64 field types. */
+bool pb_encode_varint(pb_ostream_t *stream, uint64_t value);
+
+/* Encode an integer in the zig-zagged svarint format.
+ * This works for sint32 and sint64. */
+bool pb_encode_svarint(pb_ostream_t *stream, int64_t value);
+
+/* Encode a string or bytes type field. For strings, pass strlen(s) as size. */
+bool pb_encode_string(pb_ostream_t *stream, const pb_byte_t *buffer, size_t size);
+
+/* Encode a fixed32, sfixed32 or float value.
+ * You need to pass a pointer to a 4-byte wide C variable. */
+bool pb_encode_fixed32(pb_ostream_t *stream, const void *value);
+
+/* Encode a fixed64, sfixed64 or double value.
+ * You need to pass a pointer to a 8-byte wide C variable. */
+bool pb_encode_fixed64(pb_ostream_t *stream, const void *value);
+
+/* Encode a submessage field.
+ * You need to pass the pb_field_t array and pointer to struct, just like
+ * with pb_encode(). This internally encodes the submessage twice, first to
+ * calculate message size and then to actually write it out.
+ */
+bool pb_encode_submessage(pb_ostream_t *stream, const pb_field_t fields[], const void *src_struct);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif