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_SERIAL_DBGLINK_SERVICE_H__

#define __DEBUGGER_SERIAL_DBGLINK_SERVICE_H__

#include "iclass.h"

#include "iservice.h"

#include "coreservices/itap.h"

#include "coreservices/iserial.h"

#include "coreservices/irawlistener.h"

namespace debugger {

#define MAGIC_ID 0x31

static const int UART_REQ_HEADER_SZ = 10;

static const int UART_MST_BURST_MAX = 64;

#pragma pack(1)

struct UartMstPacketType {

    uint8_t magic;

    uint8_t cmd;

    uint64_t addr;

    uint32_t data[UART_MST_BURST_MAX];

};

#pragma pack()

union PacketType {

    UartMstPacketType fields;

    char buf[1];

};

class SerialDbgService : public IService,

                         public ITap,

                         public IRawListener {

public:

    SerialDbgService(const char *name);

    ~SerialDbgService();

    /** IService interface */

    virtual void postinitService();

    virtual void predeleteService();

    /** ITap interface */

    virtual int read(uint64_t addr, int bytes, uint8_t *obuf);

    virtual int write(uint64_t addr, int bytes, uint8_t *ibuf);

    /** IRawListener interface */

    virtual void updateData(const char *buf, int buflen);

private:

    AttributeType timeout_;

    AttributeType port_;

    ISerial *iserial_;

    event_def event_block_;

    PacketType pkt_;

    int rd_count_;

    int req_count_;

    int wait_bytes_;

    Reg64Type rxbuf_[UART_MST_BURST_MAX];

};

DECLARE_CLASS(SerialDbgService)

}  // namespace debugger

#endif  // __DEBUGGER_SERIAL_DBGLINK_SERVICE_H__