HIFIVE1-VP/riscv.sc/incl/sysc/SiFive/clint.h

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/*******************************************************************************
* Copyright 2017 eyck@minres.com
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy
* of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
******************************************************************************/
#ifndef _CLINT_H_
#define _CLINT_H_
#include "scc/tlm_target.h"
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namespace iss {
namespace arch {
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template <typename BASE> class riscv_hart_msu_vp;
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}
}
namespace sysc {
class clint_regs;
namespace SiFive {
class core_complex;
}
class clint : public sc_core::sc_module, public scc::tlm_target<> {
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public:
SC_HAS_PROCESS(clint);
sc_core::sc_in<sc_core::sc_time> clk_i;
sc_core::sc_in<bool> rst_i;
sc_core::sc_out<bool> mtime_int_o;
sc_core::sc_out<bool> msip_int_o;
clint(sc_core::sc_module_name nm);
virtual ~clint() override; // 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<clint_regs> regs;
sc_core::sc_event mtime_evt;
};
} /* namespace sysc */
#endif /* _CLINT_H_ */