427 lines
14 KiB
C++
427 lines
14 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2022 Fabien Corona f.corona<at>laposte.net
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, 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 (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef KIBIS_H
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#define KIBIS_H
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#include "ibis_parser.h"
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class KIBIS_PIN;
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class KIBIS_FILE;
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class KIBIS_MODEL;
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class KIBIS_COMPONENT;
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class KIBIS;
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class KIBIS_ANY : public IBIS_ANY
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{
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public:
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KIBIS_ANY( KIBIS* aTopLevel );
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KIBIS* m_topLevel;
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bool m_valid;
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};
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enum KIBIS_WAVEFORM_TYPE
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{
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NONE = 0, // Used for three state
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PRBS,
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RECTANGULAR,
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STUCK_HIGH,
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STUCK_LOW,
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HIGH_Z
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};
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class KIBIS_WAVEFORM
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{
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public:
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KIBIS_WAVEFORM(){};
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KIBIS_WAVEFORM_TYPE GetType() { return m_type; };
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virtual double GetDuration() { return 1; };
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bool inverted = false; // Used for differential drivers
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virtual ~KIBIS_WAVEFORM(){};
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virtual std::vector<std::pair<int, double>> GenerateBitSequence()
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{
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std::vector<std::pair<int, double>> bits;
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return bits;
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};
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protected:
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KIBIS_WAVEFORM_TYPE m_type = KIBIS_WAVEFORM_TYPE::NONE;
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};
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class KIBIS_WAVEFORM_RECTANGULAR : public KIBIS_WAVEFORM
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{
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public:
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KIBIS_WAVEFORM_RECTANGULAR() : KIBIS_WAVEFORM() { m_type = KIBIS_WAVEFORM_TYPE::RECTANGULAR; };
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double m_ton = 100e-9;
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double m_toff = 100e-9;
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int m_cycles = 1;
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double m_delay = 0;
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std::vector<std::pair<int, double>> GenerateBitSequence() override;
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double GetDuration() override { return ( m_ton + m_toff ) * m_cycles; };
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};
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// For now, we only support PRBS7
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class KIBIS_WAVEFORM_PRBS : public KIBIS_WAVEFORM
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{
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public:
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KIBIS_WAVEFORM_PRBS() : KIBIS_WAVEFORM() { m_type = KIBIS_WAVEFORM_TYPE::PRBS; };
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double m_bitrate = 10e6;
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double m_delay = 0;
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double m_bits = 10;
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std::vector<std::pair<int, double>> GenerateBitSequence() override;
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double GetDuration() override { return m_bits / m_bitrate ; };
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};
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class KIBIS_WAVEFORM_STUCK_HIGH : public KIBIS_WAVEFORM
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{
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public:
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KIBIS_WAVEFORM_STUCK_HIGH() : KIBIS_WAVEFORM() { m_type = KIBIS_WAVEFORM_TYPE::STUCK_HIGH; };
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std::vector<std::pair<int, double>> GenerateBitSequence() override;
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};
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class KIBIS_WAVEFORM_STUCK_LOW : public KIBIS_WAVEFORM
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{
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public:
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KIBIS_WAVEFORM_STUCK_LOW() : KIBIS_WAVEFORM() { m_type = KIBIS_WAVEFORM_TYPE::STUCK_LOW; };
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std::vector<std::pair<int, double>> GenerateBitSequence() override;
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};
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class KIBIS_WAVEFORM_HIGH_Z : public KIBIS_WAVEFORM
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{
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public:
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KIBIS_WAVEFORM_HIGH_Z() : KIBIS_WAVEFORM() { m_type = KIBIS_WAVEFORM_TYPE::HIGH_Z; };
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std::vector<std::pair<int, double>> GenerateBitSequence() override;
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};
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/** Accuracy level.
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*
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* Level 0 is faster, but not as accurate
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*
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* Level 0 :
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* - Driver: Don't use waveform
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* - Driver: Don't use _DUT info
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* Level 1 :
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* _ Driver: Use up to one waveform
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* _ Driver: Don't use _DUT info
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* Level 2 :
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* _ Driver: Use up to two waveforms
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* _ Driver: Don't use _DUT info
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*
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* Level 3 : ( not implemented, fallback to level 2 )
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* _ Driver: Use up to two waveforms
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* _ Driver: Use _DUT info if at least one waveform
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*/
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enum class KIBIS_ACCURACY
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{
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LEVEL_0,
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LEVEL_1,
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LEVEL_2,
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LEVEL_3,
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};
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class KIBIS_PARAMETER
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{
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public:
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IBIS_CORNER m_Rpin = IBIS_CORNER::TYP;
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IBIS_CORNER m_Lpin = IBIS_CORNER::TYP;
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IBIS_CORNER m_Cpin = IBIS_CORNER::TYP;
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IBIS_CORNER m_Ccomp = IBIS_CORNER::TYP;
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IBIS_CORNER m_supply = IBIS_CORNER::TYP;
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KIBIS_WAVEFORM* m_waveform = nullptr;
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KIBIS_ACCURACY m_accuracy = KIBIS_ACCURACY::LEVEL_2;
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void SetCornerFromString( IBIS_CORNER& aCorner, std::string aString );
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};
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class KIBIS_FILE : KIBIS_ANY
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{
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public:
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KIBIS_FILE( KIBIS* aTopLevel );
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std::string m_fileName;
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double m_fileRev;
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double m_ibisVersion;
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std::string m_date;
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std::string m_source;
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std::string m_notes;
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std::string m_disclaimer;
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std::string m_copyright;
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bool Init( IbisParser& aParser );
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};
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class KIBIS : public KIBIS_ANY
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{
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public:
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KIBIS() : KIBIS_ANY( this ), m_file( this )
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{
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m_valid = false;
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}; // Constructor for unitialized KIBIS members
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KIBIS( std::string aFileName );
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std::vector<KIBIS_COMPONENT> m_components;
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std::vector<KIBIS_MODEL> m_models;
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KIBIS_FILE m_file;
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/** @brief Absolute path of the directory that will be used for caching. */
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std::string m_cacheDir = "";
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/** @brief Return the model with name aName . Nullptr if not found */
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KIBIS_MODEL* GetModel( std::string aName );
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/** @brief Return the component with name aName . Nullptr if not found */
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KIBIS_COMPONENT* GetComponent( std::string aName );
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};
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class KIBIS_MODEL : public KIBIS_ANY
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{
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public:
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KIBIS_MODEL( KIBIS* aTopLevel, IbisModel& aSource, IbisParser& aParser );
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std::string m_name;
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std::string m_description;
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IBIS_MODEL_TYPE m_type = IBIS_MODEL_TYPE::UNDEFINED;
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/* The Polarity, Enable, Vinl, Vinh, Vmeas, Cref, Rref, and Vref subparameters are optional. */
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/* the default values of Vinl = 0.8 V and Vinh = 2.0 V are assumed. */
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double m_vinl = 0.8;
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double m_vinh = 2;
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double m_vref = 0;
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double m_rref = 0;
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double m_cref = 0;
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double m_vmeas = 0;
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IBIS_MODEL_ENABLE m_enable = IBIS_MODEL_ENABLE::UNDEFINED;
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IBIS_MODEL_POLARITY m_polarity = IBIS_MODEL_POLARITY::UNDEFINED;
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// End of optional subparameters
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TypMinMaxValue m_C_comp;
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TypMinMaxValue m_voltageRange;
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TypMinMaxValue m_temperatureRange;
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TypMinMaxValue m_pullupReference;
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TypMinMaxValue m_pulldownReference;
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TypMinMaxValue m_GNDClampReference;
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TypMinMaxValue m_POWERClampReference;
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TypMinMaxValue m_Rgnd;
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TypMinMaxValue m_Rpower;
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TypMinMaxValue m_Rac;
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TypMinMaxValue m_Cac;
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IVtable m_GNDClamp;
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IVtable m_POWERClamp;
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IVtable m_pullup;
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IVtable m_pulldown;
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std::vector<IbisWaveform*> m_risingWaveforms;
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std::vector<IbisWaveform*> m_fallingWaveforms;
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IbisRamp m_ramp;
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/** @brief Return true if the model has a pulldown transistor */
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bool HasPulldown();
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/** @brief Return true if the model has a pullup transistor */
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bool HasPullup();
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/** @brief Return true if the model has a clamp diode to the gnd net */
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bool HasGNDClamp();
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/** @brief Return true if the model has a clamp diode to the power net */
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bool HasPOWERClamp();
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/** @brief Generate the spice directive to simulate the die
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*
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* @param aParam Parameters
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* @param aIndex Index used to offset spice nodes / directives
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* @return A multiline string with spice directives
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*/
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std::string SpiceDie( KIBIS_PARAMETER& aParam, int aIndex );
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/** @brief Create waveform pairs
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*
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* For maximum accuracy, we need a waveform pair.
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* This function creates the pairs based on the fixture.
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* The first element is the rising edge, the second is the falling edge.
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*
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* @return a vector of waveform pairs
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*/
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std::vector<std::pair<IbisWaveform*, IbisWaveform*>> waveformPairs();
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/** @brief Generate a square waveform
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*
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* For maximum accuracy, we need a waveform pair.
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* This function creates the pairs based on the fixture.
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*
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* @param aNode1 node where the voltage is applied
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* @param aNode2 Reference node
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* @param aBits The first member is the bit value ( 1 or 0 ).
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* The second member is the time of the transition edge.
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* @param aPair @see waveformPairs()
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* @param aParam Parameters
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* @return A multiline string with spice directives
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*/
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std::string generateSquareWave( std::string aNode1, std::string aNode2,
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std::vector<std::pair<int, double>> aBits,
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std::pair<IbisWaveform*, IbisWaveform*> aPair,
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KIBIS_PARAMETER& aParam );
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/** @brief Copy a waveform, and substract the first value to all samples
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*
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*
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* @param aIn Input waveform
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* @return Output waveform
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*/
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IbisWaveform TrimWaveform( IbisWaveform& aIn );
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};
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class KIBIS_PIN : public KIBIS_ANY
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{
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public:
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KIBIS_PIN( KIBIS* aTopLevel, IbisComponentPin& aPin, IbisComponentPackage& aPackage,
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IbisParser& aParser, KIBIS_COMPONENT* aParent, std::vector<KIBIS_MODEL>& aModels );
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/** @brief Name of the pin
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* Examples : "VCC", "GPIOA", "CLK", etc...
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*/
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std::string m_signalName;
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/** @brief Pin Number
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* Examples : 1, 2, 3 ( or for BGA ), A1, A2, A3, etc...
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*/
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std::string m_pinNumber;
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/** @brief Resistance from die to pin */
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TypMinMaxValue m_Rpin;
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/** @brief Inductance from die to pin */
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TypMinMaxValue m_Lpin;
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/** @brief Capacitance from pin to GND */
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TypMinMaxValue m_Cpin;
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KIBIS_COMPONENT* m_parent;
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std::vector<double> m_t, m_Ku, m_Kd;
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std::vector<KIBIS_MODEL*> m_models;
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bool writeSpiceDriver( std::string* aDest, std::string aName, KIBIS_MODEL& aModel,
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KIBIS_PARAMETER& aParam );
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bool writeSpiceDiffDriver( std::string* aDest, std::string aName, KIBIS_MODEL& aModel,
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KIBIS_PARAMETER& aParam );
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bool writeSpiceDevice( std::string* aDest, std::string aName, KIBIS_MODEL& aModel,
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KIBIS_PARAMETER& aParam );
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bool writeSpiceDiffDevice( std::string* aDest, std::string aName, KIBIS_MODEL& aModel,
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KIBIS_PARAMETER& aParam );
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/** @brief Update m_Ku, m_Kd using no falling / rising waveform inputs ( low accuracy )
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* @param aModel Model to be used
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* @param aParam Parameters
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*/
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void getKuKdNoWaveform( KIBIS_MODEL& aModel, KIBIS_PARAMETER& aParam );
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/** @brief Update m_Ku, m_Kd using with a single waveform input
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* @param aModel Model to be used
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* @param aPair @see waveformPairs()
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* @param aParam Parameters
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*/
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void getKuKdOneWaveform( KIBIS_MODEL& aModel, std::pair<IbisWaveform*, IbisWaveform*> aPair,
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KIBIS_PARAMETER& aParam );
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/** @brief Update m_Ku, m_Kd using with two waveform inputs
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*
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* The order of aPair1 and aPair2 is not important.
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* @param aModel Model to be used
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* @param aPair1 @see waveformPairs()
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* @param aPair2 @see waveformPairs()
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* @param aParam Parameters
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* @param aIndex Index for numbering spice .SUBCKT
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*/
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void getKuKdTwoWaveforms( KIBIS_MODEL& aModel, std::pair<IbisWaveform*, IbisWaveform*> aPair1,
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std::pair<IbisWaveform*, IbisWaveform*> aPair2,
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KIBIS_PARAMETER& aParam );
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/** @brief Update m_Ku, m_Kd using with two waveform inputs
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*
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* The order of aPair1 and aPair2 is not important.
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* @param aModel Model to be used
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* @param aPair @see waveformPairs()
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* @param aParam Parameters
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* @param aIndex Index for numbering spice .SUBCKT
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*
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* @return A multiline string with spice directives
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*/
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std::string KuKdDriver( KIBIS_MODEL& aModel, std::pair<IbisWaveform*, IbisWaveform*> aPair,
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KIBIS_PARAMETER& aParam, int aIndex );
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/** @brief Generate the spice directive to simulate the die for Ku/Kd estimation
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*
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* DO NOT use it in order to generate a model.
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* It sole purpose is to run the internal simulation to get Ku/Kd
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*
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* @param aModel Model to be used
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* @param aParam Parameters
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* @param aIndex Index for numbering ports
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* @return A multiline string with spice directives
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*/
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std::string addDie( KIBIS_MODEL& aModel, KIBIS_PARAMETER& aParam, int aIndex );
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/** @brief Update m_Ku, m_Kd using with two waveform inputs
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*
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* Runs a simulation. The simulation creates a specific file with Ku/Kd values
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* This function then reads the output file and updates m_Ku / m_Kd.
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* This function probably needs a rewrite.
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*
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* @param aSimul The simulation to run, multiline spice directives
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*/
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void getKuKdFromFile( std::string* aSimul );
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KIBIS_PIN* m_complementaryPin = nullptr;
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bool isDiffPin() { return m_complementaryPin != nullptr; };
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};
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class KIBIS_COMPONENT : public KIBIS_ANY
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{
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public:
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KIBIS_COMPONENT( KIBIS* aToplevel, IbisComponent& aSource, IbisParser& aParser );
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/** @brief Name of the component */
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std::string m_name;
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/** @brief Name of the manufacturer */
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std::string m_manufacturer;
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std::vector<KIBIS_PIN> m_pins;
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/** @brief Get a pin by its number ( 1, 2, A1, A2, ... )
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*
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* @param aPinNumber pin number
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* @return pointer to a KIBIS_PIN, or nullptr if there is no matching pin
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*/
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KIBIS_PIN* GetPin( std::string aPinNumber );
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};
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#endif
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