bdb2820218
Change-Id: I0907a6f1ada3038305c2d83a350a8d435ac657ba Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/25403 Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu> Tested-by: kokoro <noreply+kokoro@google.com>
126 lines
4.9 KiB
Python
126 lines
4.9 KiB
Python
# Copyright (c) 2019 ARM Limited
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# All rights reserved.
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#
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# The license below extends only to copyright in the software and shall
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# not be construed as granting a license to any other intellectual
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# property including but not limited to intellectual property relating
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# to a hardware implementation of the functionality of the software
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# licensed hereunder. You may use the software subject to the license
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# terms below provided that you ensure that this notice is replicated
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# unmodified and in its entirety in all distributions of the software,
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# modified or unmodified, in source code or in binary form.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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from m5.params import *
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from m5.SimObject import SimObject
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from m5.util.fdthelper import *
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class Display(SimObject):
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type = 'Display'
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cxx_header = "dev/arm/display.hh"
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clock_frequency = Param.Unsigned("clock-frequency property")
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hactive = Param.Unsigned("hactive property")
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vactive = Param.Unsigned("vactive property")
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hfront_porch = Param.Unsigned("hfront-porch property")
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hback_porch = Param.Unsigned("hback-porch property")
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hsync_len = Param.Unsigned("hsync-len property")
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vfront_porch = Param.Unsigned("vfront-porch property")
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vback_porch = Param.Unsigned("vback-porch property")
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vsync_len = Param.Unsigned("vsync-len property")
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_endpoint_node = None
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def endpointPhandle(self):
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return "encoder_endpoint"
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def endpointNode(self):
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assert self._endpoint_node is not None
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return self._endpoint_node
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def generateDeviceTree(self, state):
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# timing node
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timing_node = FdtNode(self.timingNode())
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timing_node.append(FdtPropertyWords(
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"clock-frequency", [self.clock_frequency]))
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timing_node.append(FdtPropertyWords(
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"hactive", [self.hactive]))
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timing_node.append(FdtPropertyWords(
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"vactive", [self.vactive]))
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timing_node.append(FdtPropertyWords(
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"hfront-porch", [self.hfront_porch]))
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timing_node.append(FdtPropertyWords(
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"hback-porch", [self.hback_porch]))
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timing_node.append(FdtPropertyWords(
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"hsync-len", [self.hsync_len]))
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timing_node.append(FdtPropertyWords(
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"vfront-porch", [self.vfront_porch]))
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timing_node.append(FdtPropertyWords(
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"vback-porch", [self.vback_porch]))
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timing_node.append(FdtPropertyWords(
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"vsync-len", [self.vsync_len]))
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timing_node.appendPhandle(self.timingNode())
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# display timing node
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dispt_node = FdtNode("display-timings")
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dispt_node.append(FdtPropertyWords("native-mode",
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state.phandle(self.timingNode())))
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dispt_node.append(timing_node)
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# endpoint node
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endpoint_node = FdtNode("endpoint")
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endpoint_node.appendPhandle(
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self.endpointPhandle())
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# Assign node so that it can be retrieved
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self._endpoint_node = endpoint_node
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# port node
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port_node = FdtNode("port")
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port_node.append(endpoint_node)
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# Virt-encoder
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node = FdtNode("virt-encoder")
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node.appendCompatible(["drm,virtual-encoder"])
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node.append(dispt_node)
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node.append(port_node)
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yield node
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class Display1080p(Display):
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clock_frequency = 148500000
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hactive = 1920
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vactive = 1080
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hfront_porch = 148
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hback_porch = 88
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hsync_len = 44
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vfront_porch = 36
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vback_porch = 4
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vsync_len = 5
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def timingNode(self):
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return "timing_1080p60"
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