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#
# Copyright 2008,2009 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 asversion 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.
import re
import math
from Cheetah.Template import Template
def parse_tmpl(_tmpl_text, **kwargs):
return str(Template(_tmpl_text, kwargs))
class reg:
def __init__(self, reg_des):
x = re.match('^(\w*)\s*(\w*)\[(.*)\]\s*(\w*)\s*(.*)$', reg_des)
name, addr, bit_range, default, enums = x.groups()
#store variables
self._name = name
self._addr = int(addr, 16)
if ':' in bit_range: self._addr_spec = sorted(map(int, bit_range.split(':')))
else: self._addr_spec = int(bit_range), int(bit_range)
self._default = int(default, 16)
#extract enum
self._enums = list()
if enums:
enum_val = 0
for enum_str in map(str.strip, enums.split(',')):
if '=' in enum_str:
enum_name, enum_val = enum_str.split('=')
enum_val = int(enum_val)
else: enum_name = enum_str
self._enums.append((enum_name, enum_val))
enum_val += 1
def get_addr(self): return self._addr
def get_enums(self): return self._enums
def get_name(self): return self._name
def get_default(self):
for key, val in self.get_enums():
if val == self._default: return str.upper('%s_%s'%(self.get_name(), key))
return self._default
def get_stdint_type(self):\
return 'uint%d_t'%max(2**math.ceil(math.log(self.get_bit_width(), 2)), 8)
def get_shift(self): return self._addr_spec[0]
def get_mask(self): return hex(int('1'*self.get_bit_width(), 2))
def get_bit_width(self): return self._addr_spec[1] - self._addr_spec[0] + 1
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