HIFIVE1-VP/riscv.sc/src/sysc/spi.cpp

////////////////////////////////////////////////////////////////////////////////
// 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.
////////////////////////////////////////////////////////////////////////////////

#include "sysc/SiFive/spi.h"
#include "sysc/SiFive/gen/spi_regs.h"
#include "sysc/utilities.h"

namespace sysc {

spi::spi(sc_core::sc_module_name nm)
    : sc_core::sc_module(nm), tlm_target<>(clk), NAMED(clk_i), NAMED(rst_i), NAMEDD(spi_regs, regs) {
    regs->registerResources(*this);
    SC_METHOD(clock_cb);
    sensitive << clk_i;
    SC_METHOD(reset_cb);
    sensitive << rst_i;
}

spi::~spi() {}

void spi::clock_cb() { this->clk = clk_i.read(); }

void spi::reset_cb() {
    if (rst_i.read())
        regs->reset_start();
    else
        regs->reset_stop();
}

} /* namespace sysc */