Added optional support for Sparkfun SiGe GN3S USB GPS RF sampler:

- Added a pre-compiled custom GN3S firmware.
- Added a fully-compliant GNU Radio source block for GN3S USB dongle. It can be used also from GNU Radio companion and from Python applications.
- Added a new GN3S_Signal_Source block. It is possible to disable the GN3S signal source compilation. See README.

git-svn-id: https://svn.code.sf.net/p/gnss-sdr/code/trunk@217 64b25241-fba3-4117-9849-534c7e92360d

drivers/gr-gn3s/docs/doxygen/doxyxml/base.py

@@ -0,0 +1,219 @@
+#
+# Copyright 2010 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+"""
+A base class is created.
+
+Classes based upon this are used to make more user-friendly interfaces
+to the doxygen xml docs than the generated classes provide.
+"""
+
+import os
+import pdb
+
+from xml.parsers.expat import ExpatError
+
+from generated import compound
+
+
+class Base(object):
+
+    class Duplicate(StandardError):
+        pass
+
+    class NoSuchMember(StandardError):
+        pass
+
+    class ParsingError(StandardError):
+        pass
+
+    def __init__(self, parse_data, top=None):
+        self._parsed = False
+        self._error = False
+        self._parse_data = parse_data
+        self._members = []
+        self._dict_members = {}
+        self._in_category = {}
+        self._data = {}
+        if top is not None:
+            self._xml_path = top._xml_path
+            # Set up holder of references
+        else:
+            top = self
+            self._refs = {}
+            self._xml_path = parse_data
+        self.top = top
+
+    @classmethod
+    def from_refid(cls, refid, top=None):
+        """ Instantiate class from a refid rather than parsing object. """
+        # First check to see if its already been instantiated.
+        if top is not None and refid in top._refs:
+            return top._refs[refid]
+        # Otherwise create a new instance and set refid.
+        inst = cls(None, top=top)
+        inst.refid = refid
+        inst.add_ref(inst)
+        return inst
+
+    @classmethod
+    def from_parse_data(cls, parse_data, top=None):
+        refid = getattr(parse_data, 'refid', None)
+        if refid is not None and top is not None and refid in top._refs:
+            return top._refs[refid]
+        inst = cls(parse_data, top=top)
+        if refid is not None:
+            inst.refid = refid
+            inst.add_ref(inst)
+        return inst
+
+    def add_ref(self, obj):
+        if hasattr(obj, 'refid'):
+            self.top._refs[obj.refid] = obj
+
+    mem_classes = []
+
+    def get_cls(self, mem):
+        for cls in self.mem_classes:
+            if cls.can_parse(mem):
+                return cls
+        raise StandardError(("Did not find a class for object '%s'." \
+                                 % (mem.get_name())))
+
+    def convert_mem(self, mem):
+        try:
+            cls = self.get_cls(mem)
+            converted = cls.from_parse_data(mem, self.top)
+            if converted is None:
+                raise StandardError('No class matched this object.')
+            self.add_ref(converted)
+            return converted
+        except StandardError, e:
+            print e
+
+    @classmethod
+    def includes(cls, inst):
+        return isinstance(inst, cls)
+
+    @classmethod
+    def can_parse(cls, obj):
+        return False
+
+    def _parse(self):
+        self._parsed = True
+
+    def _get_dict_members(self, cat=None):
+        """
+        For given category a dictionary is returned mapping member names to
+        members of that category.  For names that are duplicated the name is
+        mapped to None.
+        """
+        self.confirm_no_error()
+        if cat not in self._dict_members:
+            new_dict = {}
+            for mem in self.in_category(cat):
+                if mem.name() not in new_dict:
+                    new_dict[mem.name()] = mem
+                else:
+                    new_dict[mem.name()] = self.Duplicate
+            self._dict_members[cat] = new_dict
+        return self._dict_members[cat]
+
+    def in_category(self, cat):
+        self.confirm_no_error()
+        if cat is None:
+            return self._members
+        if cat not in self._in_category:
+            self._in_category[cat] = [mem for mem in self._members
+                                      if cat.includes(mem)]
+        return self._in_category[cat]
+
+    def get_member(self, name, cat=None):
+        self.confirm_no_error()
+        # Check if it's in a namespace or class.
+        bits = name.split('::')
+        first = bits[0]
+        rest = '::'.join(bits[1:])
+        member = self._get_dict_members(cat).get(first, self.NoSuchMember)
+        # Raise any errors that are returned.
+        if member in set([self.NoSuchMember, self.Duplicate]):
+            raise member()
+        if rest:
+            return member.get_member(rest, cat=cat)
+        return member
+
+    def has_member(self, name, cat=None):
+        try:
+            mem = self.get_member(name, cat=cat)
+            return True
+        except self.NoSuchMember:
+            return False
+
+    def data(self):
+        self.confirm_no_error()
+        return self._data
+
+    def members(self):
+        self.confirm_no_error()
+        return self._members
+
+    def process_memberdefs(self):
+        mdtss = []
+        for sec in self._retrieved_data.compounddef.sectiondef:
+            mdtss += sec.memberdef
+        # At the moment we lose all information associated with sections.
+        # Sometimes a memberdef is in several sectiondef.
+        # We make sure we don't get duplicates here.
+        uniques = set([])
+        for mem in mdtss:
+            converted = self.convert_mem(mem)
+            pair = (mem.name, mem.__class__)
+            if pair not in uniques:
+                uniques.add(pair)
+                self._members.append(converted)
+
+    def retrieve_data(self):
+        filename = os.path.join(self._xml_path, self.refid + '.xml')
+        try:
+            self._retrieved_data = compound.parse(filename)
+        except ExpatError:
+            print('Error in xml in file %s' % filename)
+            self._error = True
+            self._retrieved_data = None
+
+    def check_parsed(self):
+        if not self._parsed:
+            self._parse()
+
+    def confirm_no_error(self):
+        self.check_parsed()
+        if self._error:
+            raise self.ParsingError()
+
+    def error(self):
+        self.check_parsed()
+        return self._error
+
+    def name(self):
+        # first see if we can do it without processing.
+        if self._parse_data is not None:
+            return self._parse_data.name
+        self.check_parsed()
+        return self._retrieved_data.compounddef.name