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# Xlib.ext.dpms -- X Display Power Management Signaling
#
# Copyright (C) 2020 Thiago Kenji Okada <thiagokokada@gmail.com>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public License
# as published by the Free Software Foundation; either version 2.1
# of the License, or (at your option) any later version.
#
# This library 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc.,
# 59 Temple Place,
# Suite 330,
# Boston, MA 02111-1307 USA
'''
This extension provides X Protocol control over the VESA Display
Power Management Signaling (DPMS) characteristics of video boards
under control of the X Window System.
Documentation: https://www.x.org/releases/X11R7.7/doc/xextproto/dpms.html
'''
from Xlib.protocol import rq
extname = 'DPMS'
# DPMS Extension Power Levels
# 0 DPMSModeOn In use
# 1 DPMSModeStandby Blanked, low power
# 2 DPMSModeSuspend Blanked, lower power
# 3 DPMSModeOff Shut off, awaiting activity
DPMSModeOn = 0
DPMSModeStandby = 1
DPMSModeSuspend = 2
DPMSModeOff = 3
DPMSPowerLevel = (
DPMSModeOn,
DPMSModeStandby,
DPMSModeSuspend,
DPMSModeOff,
)
class DPMSGetVersion(rq.ReplyRequest):
_request = rq.Struct(
rq.Card8('opcode'),
rq.Opcode(0),
rq.RequestLength(),
rq.Card16('major_version'),
rq.Card16('minor_version'),
)
_reply = rq.Struct(
rq.ReplyCode(),
rq.Pad(1),
rq.Card16('sequence_number'),
rq.ReplyLength(),
rq.Card16('major_version'),
rq.Card16('minor_version'),
rq.Pad(20),
)
def get_version(self):
return DPMSGetVersion(display=self.display,
opcode=self.display.get_extension_major(extname),
major_version=1,
minor_version=1)
class DPMSCapable(rq.ReplyRequest):
_request = rq.Struct(
rq.Card8('opcode'),
rq.Opcode(1),
rq.RequestLength(),
)
_reply = rq.Struct(
rq.ReplyCode(),
rq.Pad(1),
rq.Card16('sequence_number'),
rq.ReplyLength(),
rq.Bool('capable'),
rq.Pad(23),
)
def capable(self):
return DPMSCapable(display=self.display,
opcode=self.display.get_extension_major(extname),
major_version=1,
minor_version=1)
class DPMSGetTimeouts(rq.ReplyRequest):
_request = rq.Struct(
rq.Card8('opcode'),
rq.Opcode(2),
rq.RequestLength(),
)
_reply = rq.Struct(
rq.ReplyCode(),
rq.Pad(1),
rq.Card16('sequence_number'),
rq.ReplyLength(),
rq.Card16('standby_timeout'),
rq.Card16('suspend_timeout'),
rq.Card16('off_timeout'),
rq.Pad(18),
)
def get_timeouts(self):
return DPMSGetTimeouts(display=self.display,
opcode=self.display.get_extension_major(extname),
major_version=1,
minor_version=1)
class DPMSSetTimeouts(rq.Request):
_request = rq.Struct(
rq.Card8('opcode'),
rq.Opcode(3),
rq.RequestLength(),
rq.Card16('standby_timeout'),
rq.Card16('suspend_timeout'),
rq.Card16('off_timeout'),
rq.Pad(2)
)
def set_timeouts(self, standby_timeout, suspend_timeout, off_timeout):
return DPMSSetTimeouts(display=self.display,
opcode=self.display.get_extension_major(extname),
major_version=1,
minor_version=1,
standby_timeout=standby_timeout,
suspend_timeout=suspend_timeout,
off_timeout=off_timeout)
class DPMSEnable(rq.Request):
_request = rq.Struct(
rq.Card8('opcode'),
rq.Opcode(4),
rq.RequestLength(),
)
def enable(self):
return DPMSEnable(display=self.display,
opcode=self.display.get_extension_major(extname),
major_version=1,
minor_version=1)
class DPMSDisable(rq.Request):
_request = rq.Struct(
rq.Card8('opcode'),
rq.Opcode(5),
rq.RequestLength(),
)
def disable(self):
return DPMSDisable(display=self.display,
opcode=self.display.get_extension_major(extname),
major_version=1,
minor_version=1)
class DPMSForceLevel(rq.Request):
_request = rq.Struct(
rq.Card8('opcode'),
rq.Opcode(6),
rq.RequestLength(),
rq.Resource('power_level', DPMSPowerLevel),
)
def force_level(self, power_level):
return DPMSForceLevel(display=self.display,
opcode=self.display.get_extension_major(extname),
major_version=1,
minor_version=1,
power_level=power_level)
class DPMSInfo(rq.ReplyRequest):
_request = rq.Struct(
rq.Card8('opcode'),
rq.Opcode(7),
rq.RequestLength(),
)
_reply = rq.Struct(
rq.ReplyCode(),
rq.Pad(1),
rq.Card16('sequence_number'),
rq.ReplyLength(),
rq.Card16('power_level'),
rq.Bool('state'),
rq.Pad(21),
)
def info(self):
return DPMSInfo(display=self.display,
opcode=self.display.get_extension_major(extname),
major_version=1,
minor_version=1)
def init(disp, _info):
disp.extension_add_method('display', 'dpms_get_version', get_version)
disp.extension_add_method('display', 'dpms_capable', capable)
disp.extension_add_method('display', 'dpms_get_timeouts', get_timeouts)
disp.extension_add_method('display', 'dpms_set_timeouts', set_timeouts)
disp.extension_add_method('display', 'dpms_enable', enable)
disp.extension_add_method('display', 'dpms_disable', disable)
disp.extension_add_method('display', 'dpms_force_level', force_level)
disp.extension_add_method('display', 'dpms_info', info)
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