/******************************************************************************* * Copyright (C) 2017, 2018 MINRES Technologies GmbH * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * 3. Neither the name of the copyright holder nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * *******************************************************************************/ #ifndef _CLINT_H_ #define _CLINT_H_ #include "scc/tlm_target.h" namespace iss { namespace arch { template class riscv_hart_msu_vp; } } namespace sysc { class clint_regs; namespace SiFive { class core_complex; } class clint : public sc_core::sc_module, public scc::tlm_target<> { public: SC_HAS_PROCESS(clint);// NOLINT sc_core::sc_in tlclk_i; sc_core::sc_in lfclk_i; sc_core::sc_in rst_i; sc_core::sc_out mtime_int_o; sc_core::sc_out msip_int_o; clint(sc_core::sc_module_name nm); virtual ~clint() override; // NOLINT // need to keep it in source file because of fwd declaration of clint_regs protected: void clock_cb(); void reset_cb(); void update_mtime(); sc_core::sc_time clk, last_updt; unsigned cnt_fraction; std::unique_ptr regs; sc_core::sc_event mtime_evt; }; } /* namespace sysc */ #endif /* _CLINT_H_ */