102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
// OpenSTA, Static Timing Analyzer
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// Copyright (c) 2025, Parallax Software, Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it 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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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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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 <https://www.gnu.org/licenses/>.
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//
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// The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software.
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//
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// Altered source versions must be plainly marked as such, and must not be
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// misrepresented as being the original software.
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//
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// This notice may not be removed or altered from any source distribution.
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#pragma once
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#include <array>
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#include <memory>
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#include <string>
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#include "LibertyClass.hh"
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#include "Transition.hh"
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namespace sta {
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class InternalPowerModel;
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using InternalPowerModels =
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std::array<std::shared_ptr<InternalPowerModel>, RiseFall::index_count>;
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class InternalPower
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{
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public:
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InternalPower(LibertyPort *port,
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LibertyPort *related_port,
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const std::string &related_pg_pin,
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const std::shared_ptr<FuncExpr> &when,
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InternalPowerModels &models);
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//InternalPower(InternalPower &&other) noexcept;
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LibertyCell *libertyCell() const;
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LibertyPort *port() const { return port_; }
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LibertyPort *relatedPort() const { return related_port_; }
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FuncExpr *when() const { return when_.get(); }
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const std::string &relatedPgPin() const { return related_pg_pin_; }
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float power(const RiseFall *rf,
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const Pvt *pvt,
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float in_slew,
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float load_cap) const;
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const InternalPowerModel *model(const RiseFall *rf) const;
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protected:
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LibertyPort *port_;
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LibertyPort *related_port_;
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std::string related_pg_pin_;
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std::shared_ptr<FuncExpr> when_;
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InternalPowerModels models_;
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};
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class InternalPowerModel
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{
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public:
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InternalPowerModel(TableModel *model);
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~InternalPowerModel();
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float power(const LibertyCell *cell,
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const Pvt *pvt,
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float in_slew,
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float load_cap) const;
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std::string reportPower(const LibertyCell *cell,
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const Pvt *pvt,
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float in_slew,
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float load_cap,
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int digits) const;
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const TableModel *model() const { return model_; }
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protected:
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void findAxisValues(float in_slew,
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float load_cap,
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// Return values.
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float &axis_value1,
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float &axis_value2,
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float &axis_value3) const;
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float axisValue(const TableAxis *axis,
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float in_slew,
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float load_cap) const;
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bool checkAxes(const TableModel *model);
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bool checkAxis(const TableAxis *axis);
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TableModel *model_;
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};
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} // namespace
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