/* ----------------------------------------------------------------------------
 * Copyright (c) Huawei Technologies Co., Ltd. 2020-2020. All rights reserved.
 * Description: LiteOS Trace Pipeline Implementation HeadFile
 * Author: Huawei LiteOS Team
 * Create: 2020-03-16
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 * of conditions and the following disclaimer in the documentation and/or other materials
 * provided with the distribution.
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific prior written
 * permission.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * --------------------------------------------------------------------------- */

#ifndef _TRACE_PIPELINE_H
#define _TRACE_PIPELINE_H

#include "los_typedef.h"

#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */

/*用于实现追踪流水线的功能*/
typedef struct {
    UINT32 (*init)(VOID);       //用于初始化//
    VOID (*dataSend)(UINT16 len, UINT8 *data);      //用于发送数据//
    UINT32 (*dataRecv)(UINT8 *data, UINT32 size, UINT32 timeout);   //用于接收数据//
    UINT32 (*wait)(VOID);       //用于等待操作//
} TracePipelineOps;

/* used as tlv's tag */
enum TraceMsgType {         //用于表示追踪消息的类型//
    //类型如下//
    NOTIFY, //通知//
    HEAD,   //头部//
    OBJ,    //对象//
    EVENT,  //事件//

    TRACE_MSG_MAX,  //最大值//
};

enum TraceNotifySubType {   //用于表示通知消息的子类型//
    CMD = 0x1,
    PARAMS,
};

enum TraceHeadSubType {     //用于表示追踪头部信息的子类型//
    ENDIAN = 0x1,   //字节序//
    VERSION,        //版本//
    OBJ_SIZE,       //对象大小//
    OBJ_COUNT,      //对象计数//
    CUR_INDEX,      //当前索引//
    MAX_RECODE,
    CUR_OBJ_INDEX,
    CLOCK_FREQ,
};

enum TraceObjSubType {      //用于表示追踪对象的子类型//
    ADDR = 0x1,     //地址//
    PRIO,           //优先级/
    NAME,           //名称//
};

enum TraceEvtSubType {      //用于表示追踪事件的子类型//
    CORE = 0x1,     //核心编号//
    EVENT_CODE,     //事件码//
    CUR_TIME,       //当前时间//
    EVENT_COUNT,    //事件计数//
    CUR_TASK,       //当前任务//
    IDENTITY,       //身份信息//
    EVENT_PARAMS,   //事件参数//
};

extern VOID OsTracePipelineReg(const TracePipelineOps *ops);    //用于注册追踪管道操作//
extern UINT32 OsTracePipelineInit(VOID);            //用于初始化追踪管道//

extern VOID OsTraceDataSend(UINT8 type, UINT16 len, UINT8 *data);   //用于发送追踪数据//
extern UINT32 OsTraceDataRecv(UINT8 *data, UINT32 size, UINT32 timeout);    //用于接收追踪数据//
extern UINT32 OsTraceDataWait(VOID);        //用于等待追踪数据//

#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */

#endif /* _TRACE_PIPELINE_H */