Subversion Repositories riscv_vhdl

/**

 * @file

 * @copyright  Copyright 2016 GNSS Sensor Ltd. All right reserved.

 * @author     Sergey Khabarov - sergeykhbr@gmail.com

 * @brief      Reset, Un-reset or Reboot target command.

 */

#include "iservice.h"

#include "cmd_reset.h"

namespace debugger {

CmdReset::CmdReset(ITap *tap, ISocInfo *info)

    : ICommand ("reset", tap, info) {

    briefDescr_.make_string("Reset, Un-reset or Reboot target");

    detailedDescr_.make_string(

        "Description:\n"

        "    Reset, Un-reset or Reboot target.\n"

        "Warning:\n"

        "    When reset is HIGH CPU debug port is resetting also and cannot\n"

        "    response on debugger requests.\n"

        "Example:\n"

        "    reset\n"

        "    reset 1\n"

        "    reset 0\n");

}

bool CmdReset::isValid(AttributeType *args) {

    if ((*args)[0u].is_equal("reset") && args->size() <= 2) {

        return CMD_VALID;

    }

    return CMD_INVALID;

}

void CmdReset::exec(AttributeType *args, AttributeType *res) {

    res->make_nil();

    if (!isValid(args)) {

        generateError(res, "Wrong argument list");

        return;

    }

    Reg64Type rst;

    DsuMapType *dsu = info_->getpDsu();

    uint64_t sw_rst_addr =

           reinterpret_cast<uint64_t>(&dsu->ulocal.v.soft_reset);

    if (args->size() == 2) {

        rst.val = (*args)[1].to_uint64();

        tap_->write(sw_rst_addr, 8, rst.buf);

    } else {

        // Reboot

        rst.val = 1;

        tap_->write(sw_rst_addr, 8, rst.buf);

        RISCV_sleep_ms(10);

        rst.val = 0;

        tap_->write(sw_rst_addr, 8, rst.buf);

    }

}

}  // namespace debugger