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genz_common.py
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genz_common.py
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# Copyright (c) 2020 Hewlett Packard Enterprise Development LP
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
from ctypes import *
import uuid
c_u8 = c_ubyte
c_u16 = c_ushort
c_u32 = c_uint
c_u64 = c_ulonglong
genzUUID = uuid.UUID('4813ea5f-074e-4be2-a355-a354145c9927')
class GCID():
def __init__(self, val=None, sid=0, cid=None, str=None):
if val is not None:
self.val = val
elif cid is not None:
self.val = (sid << 12) | cid
elif str is not None:
sid_str, cid_str = str.split(':')
sid = int(sid_str, 16)
cid = int(cid_str, 16)
self.val = (sid << 12) | cid
else:
raise(TypeError)
@property
def sid(self):
return self.val >> 12
@sid.setter
def sid(self, x):
self.val = ((x & 0xffff) << 12) | self.cid
@property
def cid(self):
return self.val & 0xfff
@cid.setter
def cid(self, x):
self.val = (self.sid << 12) | (x & 0xfff)
def __repr__(self):
return '{:04x}:{:03x}'.format(self.sid, self.cid)
class SpecialField():
def __init__(self, value, parent, verbosity=0):
self.value = value
self.parent = parent
self.verbosity = verbosity
super().__init__()
def __repr__(self):
return '{}({:#x})'.format(type(self).__name__, self.value)
def nameToId(self, name):
return self._map[name]
def idToName(self, id):
return self._inverted_map[id]
def bitField(self, width, bitOffset):
lowBit = bitOffset % 64
highBit = lowBit + width - 1
return (highBit, lowBit)
def __str__(self):
r = ''
bitOffset = 0
for field in self.field._fields_:
name = field[0]
width = field[2]
highBit, lowBit = self.bitField(width, bitOffset)
val = getattr(self.field, name)
if hasattr(self, '_special') and name in self._special:
try:
state = self._special[name][val]
except IndexError:
state = 'Rv'
if width == 1:
r += '{0}{{{2}}}={1} '.format(name, state, lowBit)
else:
r += '{0}{{{2}:{3}}}={1} '.format(name, state, highBit, lowBit)
else:
if (self.verbosity < 4 and
(name == 'Rv' or width == 1) and val == 0):
bitOffset += width
continue
if width == 1:
r += '{0}{{{2}}}={1} '.format(name, val, lowBit)
else:
r += '{0}{{{2}:{3}}}={1} '.format(name, val, highBit, lowBit)
bitOffset += width
# end for field
return r
class Opcodes(SpecialField):
_subfield_name = ['', 'Req', 'Rsp', 'ReqRsp']
def __str__(self):
r = ''
if self.value == 0 or not hasattr(self, '_map'):
return r
for name, opcode in self._list:
lowBit = 2 * opcode
highBit = lowBit + 1
subField = (self.value >> (2 * opcode)) & 0x3
if subField != 0:
r += '{0}{{{2}:{3}}}={1} '.format(
name, self._subfield_name[subField],
highBit, lowBit)
return r