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138 lines
5.5 KiB
C++
138 lines
5.5 KiB
C++
/*
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* SPDX-FileCopyrightText: Copyright (c) 1993-2021 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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/******************************* DisplayPort *******************************\
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* *
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* Module: dp_watermark.h *
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* DP watermark IsModePossible calculations. *
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* *
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\***************************************************************************/
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#ifndef INCLUDED_DP_WATERMARK_H
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#define INCLUDED_DP_WATERMARK_H
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#include "displayport.h"
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#define WAR_AUDIOCLAMPING_FREQ 48000 // Audio freq. more than 48KHz are currently clamped due to bug 925211
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namespace DisplayPort
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{
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class LinkConfiguration;
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struct ModesetInfo
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{
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unsigned twoChannelAudioHz; // if you need 192khz stereo specify 192000 here
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unsigned eightChannelAudioHz; // Same setting for multi channel audio.
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// DisplayPort encodes 3-8 channel streams as 8 channel
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NvU64 pixelClockHz; // Requested pixel clock for the mode
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unsigned rasterWidth;
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unsigned rasterHeight;
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unsigned surfaceWidth; // RasterBlankStartX - newRasterBlankEndX
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unsigned surfaceHeight; // Active region height
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unsigned depth;
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unsigned rasterBlankStartX;
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unsigned rasterBlankEndX;
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unsigned bitsPerComponent; // Bits per component
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bool bEnableDsc; // bEnableDsc=1 indicates DSC would be enabled for the mode
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DSC_MODE mode; // DSC Mode
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bool bEnablePassThroughForPCON;
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ModesetInfo(): twoChannelAudioHz(0),
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eightChannelAudioHz(0),
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pixelClockHz(0),
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rasterWidth(0),
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rasterHeight(0),
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surfaceWidth(0),
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surfaceHeight(0),
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depth(0),
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rasterBlankStartX(0),
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rasterBlankEndX(0),
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bitsPerComponent(0),
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bEnableDsc(false),
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mode(DSC_SINGLE),
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bEnablePassThroughForPCON(false) {}
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ModesetInfo(unsigned newTwoChannelAudioHz, unsigned newEightChannelAudioHz, NvU64 newPixelClockHz,
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unsigned newRasterWidth, unsigned newRasterHeight,
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unsigned newSurfaceWidth, unsigned newSurfaceHeight, unsigned newDepth,
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unsigned newRasterBlankStartX=0, unsigned newRasterBlankEndX=0, bool newBEnableDsc = false,
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DSC_MODE newMode = DSC_SINGLE, bool newBEnablePassThroughForPCON = false):
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twoChannelAudioHz(newTwoChannelAudioHz),
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eightChannelAudioHz(newEightChannelAudioHz),
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pixelClockHz(newPixelClockHz),
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rasterWidth(newRasterWidth),
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rasterHeight(newRasterHeight),
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surfaceWidth(newSurfaceWidth),
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surfaceHeight(newSurfaceHeight),
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depth(newDepth),
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rasterBlankStartX(newRasterBlankStartX),
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rasterBlankEndX(newRasterBlankEndX),
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bitsPerComponent(0),
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bEnableDsc(newBEnableDsc),
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mode(newMode),
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bEnablePassThroughForPCON(newBEnablePassThroughForPCON) {}
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};
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struct Watermark
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{
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unsigned waterMark;
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unsigned tuSize;
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unsigned hBlankSym;
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unsigned vBlankSym;
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};
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bool isModePossibleSST
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(
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const LinkConfiguration & linkConfig,
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const ModesetInfo & modesetInfo,
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Watermark * dpInfo,
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bool bUseIncreasedWatermarkLimits = false
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);
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bool isModePossibleMST
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(
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const LinkConfiguration & linkConfig,
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const ModesetInfo & modesetInfo,
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Watermark * dpInfo
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);
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bool isModePossibleSSTWithFEC
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(
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const LinkConfiguration & linkConfig,
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const ModesetInfo & modesetInfo,
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Watermark * dpInfo,
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bool bUseIncreasedWatermarkLimits = false
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);
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bool isModePossibleMSTWithFEC
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(
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const LinkConfiguration & linkConfig,
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const ModesetInfo & modesetInfo,
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Watermark * dpInfo
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);
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// Return Payload Bandwidth Number(PBN)for requested mode
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unsigned pbnForMode(const ModesetInfo & modesetInfo);
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}
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#endif //INCLUDED_DP_WATERMARK_H
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