vector-uefi/fd/tool/chipsec/utilcmd/io_cmd.py
#!/usr/local/bin/python
#CHIPSEC: Platform Security Assessment Framework
#Copyright (c) 2010-2014, Intel Corporation
#
#This program 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; Version 2.
#
#This program 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 this program; if not, write to the Free Software
#Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
#Contact information:
#chipsec@intel.com
#
#
# usage as a standalone utility:
#
## \addtogroup standalone
#chipsec_util io
#----
#~~~
#chipsec_util io <ioport> <width> [value]
#''
# Examples:
#''
# chipsec_util io 0x61 1
# chipsec_util io 0x430 byte 0x0
#~~~
__version__ = '1.0'
import os
import sys
import time
import chipsec_util
from chipsec_util import chipsec_util_commands, _cs
from chipsec.logger import *
from chipsec.file import *
#_cs = cs()
usage = "chipsec_util io <io_port> <width> [value]\n" + \
"Examples:\n" + \
" chipsec_util io 0x61 1\n" + \
" chipsec_util io 0x430 byte 0x0\n\n"
chipsec_util.global_usage += usage
# ###################################################################
#
# Port I/O
#
# ###################################################################
def port_io(argv):
if 3 > len(argv):
print usage
return
try:
io_port = int(argv[2],16)
if 3 == len(argv):
width = 1
else:
if 'byte' == argv[3]:
width = 1
elif 'word' == argv[3]:
width = 2
elif 'dword' == argv[3]:
width = 4
else:
width = int(argv[3])
except:
print usage
return
if 5 == len(argv):
value = int(argv[4], 16)
logger().log( "[CHIPSEC] OUT 0x%04X <- 0x%08X (size = 0x%02x)" % (io_port, value, width) )
if 1 == width:
_cs.io.write_port_byte( io_port, value )
elif 2 == width:
_cs.io.write_port_word( io_port, value )
elif 4 == width:
_cs.io.write_port_dword( io_port, value )
else:
print "ERROR: Unsupported width 0x%x" % width
return
else:
if 1 == width:
value = _cs.io.read_port_byte( io_port )
elif 2 == width:
value = _cs.io.read_port_word( io_port )
elif 4 == width:
value = _cs.io.read_port_dword( io_port )
else:
print "ERROR: Unsupported width 0x%x" % width
return
logger().log( "[CHIPSEC] IN 0x%04X -> 0x%08X (size = 0x%02x)" % (io_port, value, width) )
chipsec_util_commands['io'] = {'func' : port_io, 'start_driver' : True }