+# Copyright 2008 The Trustees of Princeton University
+# Author: Daniel Hokka Zakrisson
+# $Id$
+# vim:ts=4:expandtab
+#
+# 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 the copyright holder 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 PRINCETON
+# UNIVERSITY 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.
+
+PCI_BASE_CLASS_NETWORK=0x02L
+PCI_BASE_CLASS_STORAGE=0x01L
+PCI_ANY=0xffffffffL
+
+def get_devices():
+ """ This is a replacement to the pypciscan library."""
+ import os
+ pci_cmd = os.popen("""/sbin/lspci -nvm | sed -e 's/\t/ /g' -e 's/ Class / /' -e 's/^/"/' -e 's/$/"/' -e 's/$/,/' -e 's/^"",$/],[/'""", 'r')
+ pci_str = "[" + pci_cmd.read() + "]"
+ pci_list = eval(pci_str)
+
+ pci_devlist = []
+ # convert each entry into a dict. and convert strings to ints.
+ for dev in pci_list:
+ rec = {}
+ for field in dev:
+ s = field.split(":")
+ if len(s) > 2:
+ # There are two 'device' fields in the output. Append
+ # 'addr' for the bus address, identified by the extra ':'.
+ end=":".join(s[1:])
+ value = end.strip()
+ key = s[0].lower() + "addr"
+ else:
+ value = int(s[1].strip(), 16)
+ key = s[0].lower()
+
+ rec[key] = value
+
+ pci_devlist.append(rec)
+
+ ret = {}
+ # convert this list of devices into the format expected by the
+ # consumer of get_devices()
+ for dev in pci_devlist:
+ if 'deviceaddr' not in dev:
+ continue
+
+ subdev = dev.get('sdevice',PCI_ANY)
+ subvend = dev.get('svendor',PCI_ANY)
+ progif = dev.get('progif',0)
+
+ value = (dev['vendor'], dev['device'], subvend, subdev, dev['class'] << 8 | progif)
+ ret[dev['deviceaddr']] = value
+
+ return ret
+
+# for convenience for the clients of pypci
+import pypcimap