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https://salsa.debian.org/gnuk-team/gnuk/gnuk.git
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257 lines
8.1 KiB
Python
257 lines
8.1 KiB
Python
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#! /usr/bin/python
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"""
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hub_ctrl.py - a tool to control port power/led of USB hub
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Copyright (C) 2006, 2011 Free Software Initiative of Japan
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Author: NIIBE Yutaka <gniibe@fsij.org>
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This file is a part of Gnuk, a GnuPG USB Token implementation.
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Gnuk is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Gnuk is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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import usb
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USB_RT_HUB = (usb.TYPE_CLASS | usb.RECIP_DEVICE)
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USB_RT_PORT = (usb.TYPE_CLASS | usb.RECIP_OTHER)
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USB_PORT_FEAT_RESET = 4
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USB_PORT_FEAT_POWER = 8
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USB_PORT_FEAT_INDICATOR = 22
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USB_DIR_IN = 0x80 # device to host
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COMMAND_SET_NONE = 0
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COMMAND_SET_LED = 1
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COMMAND_SET_POWER = 2
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HUB_LED_GREEN = 2
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def find_hubs(listing, verbose, busnum=None, devnum=None, hub=None):
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number_of_hubs_with_feature = 0
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hubs = []
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busses = usb.busses()
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if not busses:
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raise ValueError, "can't access USB"
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for bus in busses:
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devices = bus.devices
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for dev in devices:
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if dev.deviceClass != usb.CLASS_HUB:
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continue
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printout_enable = 0
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if (listing
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or (verbose
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and ((bus.dirname == busnum and dev.devnum == devnumd)
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or hub == number_of_hubs_with_feature))):
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printout_enable = 1
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uh = dev.open()
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desc = None
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try:
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# Get USB Hub descriptor
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desc = uh.controlMsg(requestType = USB_DIR_IN | USB_RT_HUB,
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request = usb.REQ_GET_DESCRIPTOR,
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value = usb.DT_HUB << 8,
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index = 0, buffer = 1024, timeout = 1000)
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finally:
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del uh
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if not desc:
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continue
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# desc[3] is lower byte of wHubCharacteristics
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if (desc[3] & 0x80) == 0 and (desc[3] & 0x03) >= 2:
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# Hub doesn't have features of controling port power/indicator
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continue
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if printout_enable:
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print "Hub #%d at %s:%03d" % (number_of_hubs_with_feature,
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bus.dirname, dev.devnum)
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if (desc[3] & 0x03) == 0:
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print " INFO: ganged power switching."
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elif (desc[3] & 0x03) == 1:
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print " INFO: individual power switching."
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elif (desc[3] & 0x03) == 2 or (desc[3] & 0x03) == 3:
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print " WARN: no power switching."
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if (desc[3] & 0x80) == 0:
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print " WARN: Port indicators are NOT supported."
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hubs.append({ 'busnum' : bus.dirname, 'devnum' : dev.devnum,
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'indicator_support' : (desc[3] & 0x80) == 0x80,
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'dev' : dev, 'num_ports' : desc[2] })
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number_of_hubs_with_feature += 1
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return hubs
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def hub_port_status(handle, num_ports):
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print " Hub Port Status:"
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for i in range(num_ports):
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port = i + 1
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status = handle.controlMsg(requestType = USB_RT_PORT | usb.ENDPOINT_IN,
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request = usb.REQ_GET_STATUS,
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value = 0,
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index = port, buffer = 4,
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timeout = 1000)
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print " Port %d: %02x%02x.%02x%02x" % (port, status[3], status[2],
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status[1], status[0]),
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if status[1] & 0x10:
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print " indicator",
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if status[1] & 0x08:
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print " test" ,
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if status[1] & 0x04:
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print " highspeed",
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if status[1] & 0x02:
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print " lowspeed",
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if status[1] & 0x01:
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print " power",
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if status[0] & 0x10:
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print " RESET",
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if status[0] & 0x08:
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print " oc",
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if status[0] & 0x04:
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print " suspend",
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if status[0] & 0x02:
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print " enable",
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if status[0] & 0x01:
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print " connect",
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print
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import sys
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COMMAND_SET_NONE = 0
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COMMAND_SET_LED = 1
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COMMAND_SET_POWER = 2
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HUB_LED_GREEN = 2
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def usage(progname):
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print >> sys.stderr, """Usage: %s [{-h HUBNUM | -b BUSNUM -d DEVNUM}]
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[-P PORT] [{-p [VALUE]|-l [VALUE]}]
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""" % progname
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def exit_with_usage(progname):
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usage(progname)
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exit(1)
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if __name__ == '__main__':
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busnum = None
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devnum = None
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listing = False
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verbose = False
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hub = None
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port = 1
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cmd = COMMAND_SET_NONE
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if len(sys.argv) == 1:
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listing = True
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else:
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try:
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while len(sys.argv) >= 2:
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option = sys.argv[1]
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sys.argv.pop(1)
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if option == '-h':
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if bunum != None or devnum != None:
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exit_with_usage(sys.argv[0])
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hub = int(sys.argv[1])
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sys.argv.pop(1)
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elif option == '-b':
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busnum = int(sys.argv[1])
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sys.argv.pop(1)
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elif option == '-d':
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devnum = int(sys.argv[1])
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sys.argv.pop(1)
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elif option == '-P':
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port = int(sys.argv[1])
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sys.argv.pop(1)
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elif option == '-l':
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if cmd != COMMAND_SET_NONE:
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exit_with_usage(sys.argv[0])
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if len(sys.argv) > 1:
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value = int(sys.argv[1])
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sys.argv.pop(1)
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else:
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value = HUB_LED_GREEN
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cmd = COMMAND_SET_LED
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elif option == '-p':
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if cmd != COMMAND_SET_NONE:
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exit_with_usage(sys.argv[0])
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if len(sys.argv) > 1:
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value = int(sys.argv[1])
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sys.argv.pop(1)
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else:
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value = 0
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cmd = COMMAND_SET_POWER
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elif option == '-v':
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verbose = True
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if len(sys.argv) == 1:
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listing = True
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else:
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exit_with_usage(sys.argv[0])
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except:
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exit_with_usage(sys.argv[0])
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if ((busnum != None and devnum == None)
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or (busnum == None and devnum != None)):
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exit_with_usage(sys.argv[0])
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if hub == None and busnum == None:
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hub = 0 # Default hub = 0
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if cmd == COMMAND_SET_NONE:
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cmd = COMMAND_SET_POWER
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hubs = find_hubs(listing, verbose, busnum, devnum, hub)
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if len(hubs) == 0:
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print >> sys.stderr, "No hubs found."
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exit(1)
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if listing:
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exit(0)
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if hub == None:
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for h in hubs:
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if h['busnum'] == busnum and h['devnum'] == devnum:
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dev_hub = h['dev']
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nports = h['num_ports']
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else:
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dev_hub = hubs[hub]['dev']
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nports = hubs[hub]['num_ports']
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uh = dev_hub.open()
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if cmd == COMMAND_SET_POWER:
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feature = USB_PORT_FEAT_POWER
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index = port
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if value:
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request = usb.REQ_SET_FEATURE
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else:
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request = usb.REQ_CLEAR_FEATURE
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else:
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request = usb.REQ_SET_FEATURE
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feature = USB_PORT_FEAT_INDICATOR
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index = (value << 8) | port
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if verbose:
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print "Send control message (REQUEST=%d, FEATURE=%d, INDEX=%d) " % (request, feature, index)
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uh.controlMsg(requestType = USB_RT_PORT, request = request, value = feature,
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index = index, buffer = None, timeout = 1000)
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if verbose:
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hub_port_status(uh,nports)
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del uh
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