Subversion Repositories riscv_vhdl

/*

 *  Copyright 2018 Sergey Khabarov, sergeykhbr@gmail.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 __DEBUGGER_SOCSIM_PLUGIN_UART_H__

#define __DEBUGGER_SOCSIM_PLUGIN_UART_H__

#include "iclass.h"

#include "iservice.h"

#include "coreservices/imemop.h"

#include "coreservices/iserial.h"

#include "coreservices/iwire.h"

#include "coreservices/irawlistener.h"

#include "coreservices/iclock.h"

#include <string>

namespace debugger {

class UART : public IService,

             public IMemoryOperation,

             public ISerial {

 public:

    UART(const char *name);

    ~UART();

    /** IService interface */

    virtual void postinitService();

    /** IMemoryOperation */

    virtual ETransStatus b_transport(Axi4TransactionType *trans);

    /** ISerial */

    virtual int writeData(const char *buf, int sz);

    virtual void registerRawListener(IFace *listener);

    virtual void unregisterRawListener(IFace *listener);

    virtual void getListOfPorts(AttributeType *list);

    virtual int openPort(const char *port, AttributeType settings);

    virtual void closePort();

 private:

    AttributeType irqctrl_;

    AttributeType listeners_;  // non-registering attribute

    AttributeType autoTestEna_;

    AttributeType testCases_;

    IWire *iwire_;

    std::string input_;

    static const int RX_FIFO_SIZE = 16;

    char rxfifo_[RX_FIFO_SIZE];

    char *p_rx_wr_;

    char *p_rx_rd_;

    int rx_total_;

    mutex_def mutexListeners_;

    struct uart_map {

        volatile uint32_t status;

        volatile uint32_t scaler;

        uint32_t rsrv[2];

        volatile uint32_t data;

    } regs_;

  private:

    class AutoTest : public IClockListener {

     public:

        AutoTest(ISerial *parent, AttributeType *tests);

        /** IClockListener */

        virtual void stepCallback(uint64_t t);

     private:

        ISerial *parent_;

        AttributeType tests_;

        unsigned testcnt_;

    };

    AutoTest *pautotest_;

};

DECLARE_CLASS(UART)

}  // namespace debugger

#endif  // __DEBUGGER_SOCSIM_PLUGIN_UART_H__