rt-thread/bsp/airm2m/air105/libraries/HAL_Driver/Src/bsp_common.c

/*
 * Copyright (c) 2022 OpenLuat & AirM2M
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include "bsp_common.h"

const uint8_t ByteToAsciiTable[16] = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};

void LoopBuffer_Init(Loop_Buffer *Buf, void *Src, uint32_t MaxLen, uint32_t DataSize)
{
    uint8_t *Data = (uint8_t *)Src;
    Buf->Data = Data;
    Buf->Len = 0;
    Buf->MaxLength = MaxLen;
    Buf->Offset = 0;
    Buf->DataSize = DataSize;
}

uint32_t LoopBuffer_Query(Loop_Buffer *Buf, void *Src, uint32_t Len)
{
    uint32_t i, p;
    uint8_t *Data = (uint8_t *)Src;
    if (Buf->Len < Len)
    {
        Len = Buf->Len;
    }
    if (Buf->DataSize > 1)
    {
        for (i = 0, p = Buf->Offset; i < Len; i++, p++)
        {
            if (p >= Buf->MaxLength)
            {
                p -= Buf->MaxLength;
            }
            memcpy(Data + (i * Buf->DataSize), Buf->Data + (p * Buf->DataSize), Buf->DataSize);
        }
    }
    else
    {
        for (i = 0, p = Buf->Offset; i < Len; i++, p++)
        {
            if (p >= Buf->MaxLength)
            {
                p -= Buf->MaxLength;
            }
            Data[i] = Buf->Data[p];
        }
    }

    return Len;
}

uint32_t LoopBuffer_Read(Loop_Buffer *Buf, void *Src, uint32_t Len)
{
    uint32_t l;
    uint8_t *Data = (uint8_t *)Src;
    l = LoopBuffer_Query(Buf, Data, Len);
    Buf->Len -= l;
    Buf->Offset += l;
    if (Buf->Offset >= Buf->MaxLength)
    {
        Buf->Offset -= Buf->MaxLength;

    }
    if (!Buf->Len) {
        Buf->Offset = 0;
    }
    return l;
}

void LoopBuffer_Del(Loop_Buffer *Buf, uint32_t Len)
{
    if (Buf->Len < Len)
    {
        Len = Buf->Len;
    }

    Buf->Len -= Len;
    Buf->Offset += Len;
    if (Buf->Offset >= Buf->MaxLength)
    {
        Buf->Offset -= Buf->MaxLength;
    }

    if (!Buf->Len) {
        Buf->Offset = 0;
    }
}

uint32_t LoopBuffer_Write(Loop_Buffer *Buf, void *Src, uint32_t Len)
{
    uint32_t i, p, cut_off = 0;
    uint8_t *Data = (uint8_t *)Src;
    if (!Buf->Len && !Buf->Offset && (Len <= Buf->Len))
    {
        memcpy(Buf->Data, Data, Len);
        Buf->Len = Len;
        return Len;
    }
    cut_off = Buf->MaxLength - Buf->Len;
    if (cut_off >= Len)
    {
        cut_off = 0;
    }
    else
    {
        cut_off = Len - cut_off;
    }

    if (Buf->DataSize > 1)
    {
        for (i = 0, p = Buf->Offset + Buf->Len; i < Len; i++, p++)
        {
            if (p >= Buf->MaxLength)
            {
                p -= Buf->MaxLength;
            }
            memcpy(Buf->Data + (p * Buf->DataSize), Data + (i * Buf->DataSize), Buf->DataSize);
        }
    }
    else
    {
        for (i = 0, p = Buf->Offset + Buf->Len; i < Len; i++, p++)
        {
            if (p >= Buf->MaxLength)
            {
                p -= Buf->MaxLength;
            }

            Buf->Data[p] = Data[i];
        }
    }


    Buf->Offset += cut_off;
    if (Buf->Offset >= Buf->MaxLength)
        Buf->Offset -= Buf->MaxLength;

    Buf->Len += Len;
    if (Buf->Len > Buf->MaxLength)
        Buf->Len = Buf->MaxLength;

    return Len;

}


void Buffer_StaticInit(Buffer_Struct *Buf, void *Src, uint32_t MaxLen)
{
    Buf->Data = Src;
    Buf->Pos = 0;
    Buf->MaxLen = MaxLen;
}

int32_t Buffer_StaticWrite(Buffer_Struct *Buf, void *Data, uint32_t Len)
{
    if (!Len)
    {
        return -1;
    }
    if (!Buf)
    {
        return -1;
    }
    if ((Buf->Pos + Len) > Buf->MaxLen)
    {
        Len = Buf->MaxLen - Buf->Pos;
    }
    if (Len)
    {
        memcpy(&Buf->Data[Buf->Pos], Data, Len);
    }
    Buf->Pos += Len;
    return Len;
}

//void Buffer_Remove(Buffer_Struct *Buf, uint32_t Len)
//{
//  uint32_t RestLen;
//  uint32_t i;
//  if (!Buf)
//      return ;
//  if (!Buf->Data)
//      return ;
//  if (Len >= Buf->Pos)
//  {
//      Buf->Pos = 0;
//      return ;
//  }
//  RestLen = Buf->Pos - Len;
//  memmove(Buf->Data, Buf->Data + Len, RestLen);
//  Buf->Pos = RestLen;
//}


/*****************************************************************************
* FUNCTION
*   command_parse_param()
* DESCRIPTION
*    Parse AT command string to parameters
* PARAMETERS
*   char* pStr
* RETURNS
*  pCmdParam
*****************************************************************************/
uint32_t CmdParseParam(int8_t* pStr, CmdParam *CP, int8_t Cut)
{
    uint32_t paramStrLen = strlen((char *)pStr);
    uint32_t paramIndex = 0;
    uint32_t paramCharIndex = 0;
    uint32_t index = 0;

    while ((pStr[index] != '\r')
        && (index < paramStrLen)
        && (paramIndex < CP->param_max_num)) {
        if (pStr[index] == Cut) {
            /* Next param string */
            paramCharIndex = 0;
            paramIndex++;
        }
        else {
            if (pStr[index] != '"')
            {
                if (paramCharIndex >= CP->param_max_len)
                    return (0);

                /*Get each of command param char, the param char except char ' " '*/
                CP->param_str[paramIndex * CP->param_max_len + paramCharIndex] = pStr[index];
                paramCharIndex++;
            }
        }
        index++;
    }

    CP->param_num = paramIndex + 1;

    return (1);
}

__attribute__((weak)) uint8_t OS_CheckInIrq(void)
{
    return __get_IPSR();
}

__attribute__((weak)) void OS_BufferRemove(Buffer_Struct *Buf, uint32_t Len)
{
    uint32_t RestLen;
    uint32_t i;
    if (!Buf)
        return ;
    if (!Buf->Data)
        return ;
    if (Len >= Buf->Pos)
    {
        Buf->Pos = 0;
        return ;
    }
    RestLen = Buf->Pos - Len;
    memmove(Buf->Data, Buf->Data + Len, RestLen);
    Buf->Pos = RestLen;
}



int32_t BSP_SetBit(uint8_t *Data, uint32_t Sn, uint8_t Value)
{
    uint32_t Mask,Pos1,Pos2;

    Pos1 = Sn/8;
    Pos2 = Sn%8;

    Mask = ~(1 << Pos2);
    if (Value)
    {
        Value = (1 << Pos2);
    }
    Data[Pos1] = (Data[Pos1] & Mask) | Value;
    //DBG("%d %d %d %d", Sn, Pos1, Pos2, Value);
    return 0;
}

int32_t BSP_GetBit(uint8_t *Data, uint32_t Sn, uint8_t *Value)
{
    uint32_t Mask,Pos1,Pos2;

    Pos1 = Sn/8;
    Pos2 = Sn%8;
    Mask = (1 << Pos2);
    if (Data[Pos1] & Mask)
    {
        *Value = 1;
    }
    else
    {
        *Value = 0;
    }
    return -1;
}

uint8_t BSP_TestBit(uint8_t *Data, uint32_t Sn)
{
    uint32_t Mask,Pos1,Pos2;

    Pos1 = Sn/8;
    Pos2 = Sn%8;
    Mask = (1 << Pos2);
    if (Data[Pos1] & Mask)
    {
        return 1;
    }
    return 0;
}

uint8_t XorCheck(void *Src, uint32_t Len, uint8_t CheckStart)
{
    uint8_t Check = CheckStart;
    uint8_t *Data = (uint8_t *)Src;
    uint32_t i;
    for (i = 0; i < Len; i++)
    {
        Check ^= Data[i];
    }
    return Check;
}

uint8_t SumCheck(uint8_t *Data, uint32_t Len)
{
    uint8_t Check = 0;
    uint32_t i;
    for (i = 0; i < Len; i++)
    {
        Check += Data[i];
    }
    return Check;
}


uint8_t CRC8Cal(void *Data, uint16_t Len, uint8_t CRC8Last, uint8_t CRCRoot, uint8_t IsReverse)
{
    uint16_t i;
    uint8_t CRC8 = CRC8Last;
    uint8_t wTemp = CRCRoot;
    uint8_t *Src = (uint8_t *)Data;
    if (IsReverse)
    {
        CRCRoot = 0;
        for (i = 0; i < 8; i++)
        {
            if (wTemp & (1 << (7 - i)))
            {
                CRCRoot |= 1 << i;
            }
        }
        while (Len--)
        {

            CRC8 ^= *Src++;
            for (i = 0; i < 8; i++)
            {
                if ((CRC8 & 0x01))
                {
                    CRC8 >>= 1;
                    CRC8 ^= CRCRoot;
                }
                else
                {
                    CRC8 >>= 1;
                }
            }
        }
    }
    else
    {
        while (Len--)
        {

            CRC8 ^= *Src++;
            for (i = 8; i > 0; --i)
            {
                if ((CRC8 & 0x80))
                {
                    CRC8 <<= 1;
                    CRC8 ^= CRCRoot;
                }
                else
                {
                    CRC8 <<= 1;
                }
            }
        }
    }
    return CRC8;
}

/************************************************************************/
/*  CRC16                                                                */
/************************************************************************/
uint16_t CRC16Cal(void *Data, uint16_t Len, uint16_t CRC16Last, uint16_t CRCRoot, uint8_t IsReverse)
{
    uint16_t i;
    uint16_t CRC16 = CRC16Last;
    uint16_t wTemp = CRCRoot;
    uint8_t *Src = (uint8_t *)Data;
    if (IsReverse)
    {
        CRCRoot = 0;
        for (i = 0; i < 16; i++)
        {
            if (wTemp & (1 << (15 - i)))
            {
                CRCRoot |= 1 << i;
            }
        }
        while (Len--)
        {
            for (i = 0; i < 8; i++)
            {
                if ((CRC16 & 0x0001) != 0)
                {
                    CRC16 >>= 1;
                    CRC16 ^= CRCRoot;
                }
                else
                {
                    CRC16 >>= 1;
                }
                if ((*Src&(1 << i)) != 0)
                {
                    CRC16 ^= CRCRoot;
                }
            }
            Src++;
        }
    }
    else
    {
        while (Len--)
        {
            for (i = 8; i > 0; i--)
            {
                if ((CRC16 & 0x8000) != 0)
                {
                    CRC16 <<= 1;
                    CRC16 ^= CRCRoot;
                }
                else
                {
                    CRC16 <<= 1;
                }
                if ((*Src&(1 << (i - 1))) != 0)
                {
                    CRC16 ^= CRCRoot;
                }
            }
            Src++;
        }
    }

    return CRC16;
}

uint32_t AsciiToU32(uint8_t *Src, uint32_t Len)
{
    uint32_t i = 0;
    uint32_t Temp = 0;
    for (i = 0; i < Len; i++)
    {

        if (Src[i])
        {
            Temp *= 10;
            Temp += Src[i] - '0';
        }
        else
        {
            break;
        }
    }
    return Temp;
}


/**
* @brief  反转数据
* @param  ref 需要反转的变量
* @param    ch 反转长度，多少位
* @retval N反转后的数据
*/
static LongInt Reflect(LongInt ref, uint8_t ch)
{
    LongInt value = 0;
    LongInt i;
    for (i = 1; i < (LongInt)(ch + 1); i++)
    {
        if (ref & 1)
            value |= (LongInt)1 << (ch - i);
        ref >>= 1;
    }
    return value;
}

/**
* @brief  建立CRC32的查询表
* @param  Tab 表缓冲
* @param    Gen CRC32根
* @retval None
*/
void CRC32_CreateTable(uint32_t *Tab, uint32_t Gen)
{
    uint32_t crc;
    uint32_t i, j, temp, t1, t2, flag;
    if (Tab[1] != 0)
        return;
    for (i = 0; i < 256; i++)
    {
        temp = Reflect(i, 8);
        Tab[i] = temp << 24;
        for (j = 0; j < 8; j++)
        {
            flag = Tab[i] & 0x80000000;
            t1 = Tab[i] << 1;
            if (0 == flag)
            {
                t2 = 0;
            }
            else
            {
                t2 = Gen;
            }
            Tab[i] = t1 ^ t2;
        }
        crc = Tab[i];
        Tab[i] = Reflect(crc, 32);
    }
}


/**
* @brief  计算buffer的crc校验码
* @param  CRC32_Table CRC32表
* @param  Buf 缓冲
* @param    Size 缓冲区长度
* @param    CRC32 初始CRC32值
* @retval 计算后的CRC32
*/
uint32_t CRC32_Cal(uint32_t *CRC32_Table, uint8_t *Buf, uint32_t Size, uint32_t CRC32Last)
{
    uint32_t i;
    for (i = 0; i < Size; i++)
    {
        CRC32Last = CRC32_Table[(CRC32Last ^ Buf[i]) & 0xff] ^ (CRC32Last >> 8);
    }
    return CRC32Last;
}


/************************************************************************/
/*时间与时间戳转换，C语言实现                                                                    */
/************************************************************************/
/************************************************************************/
uint8_t IsLeapYear(uint32_t Year)
{
    if ((Year % 400) == 0)
        return 1;
    if ((((Year % 4) == 0) && (Year % 100) != 0))
        return 1;
    else
        return 0;
}

const uint32_t DayTable[2][12] = { { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 }, { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335 } };
//const uint32_t DayTable[2][12] = { { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 }, { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335 } };
LongInt UTC2Tamp(Date_UserDataStruct *Date, Time_UserDataStruct *Time)
{

    LongInt DYear, DDay, DSec;
    uint32_t Year100;
    DYear = Date->Year - 1970;
    if (DYear)  //1970年以后,1972是第一个闰年,1973年是第一年需要增加一天，2100年是非闰年
    {
        DDay = DYear * 365 + ((DYear + 1) / 4) + DayTable[IsLeapYear(Date->Year)][Date->Mon - 1] + (Date->Day - 1);
//      if (IsLeapYear(Date->Year))
//      {
//          DDay--;
//      }
        if (Date->Year >= 2100)
        {
            Year100 = Date->Year - 2100;
            DDay -= (1 + Year100 / 100);
            if (Date->Year >= 2400)
            {
                Year100 = Date->Year - 2400;
                DDay += 1 + Year100 / 400;
            }

        }

    }
    else
    {
        DDay = DayTable[IsLeapYear(Date->Year)][Date->Mon - 1] + (Date->Day - 1);
    }
    DSec = DDay * 86400 + Time->Hour * 3600 + Time->Min * 60 + Time->Sec;
    return DSec;
}
#define YEAR_1_DAY_BEFORE2000       365
#define YEAR_2_DAY_BEFORE2000       730
#define YEAR_3_DAY_BEFORE2000       1096


#define YEAR_1_DAY_AFTER2000        365
#define YEAR_2_DAY_AFTER2000        730
#define YEAR_3_DAY_AFTER2000        1095

#define YEAR_4_DAY      1461
#define YEAR_31_DAY     11323

#define YEAR_100_DAY    36524
#define YEAR_400_DAY    146097

uint32_t Tamp2UTC(LongInt Sec, Date_UserDataStruct *Date, Time_UserDataStruct *Time, uint32_t LastDDay)
{

    uint32_t DYear,i, LeapFlag, Temp;
    uint32_t DDay;
    DDay = Sec / 86400;
    if (DDay != LastDDay)
    {
        DYear = 0;
        Time->Week = (4 + DDay) % 7;
        if (DDay >= YEAR_31_DAY)
        {
            DDay -= YEAR_31_DAY;
            DYear = 31;

            if (DDay >= YEAR_400_DAY)
            {
                Temp = DDay / YEAR_400_DAY;
                DYear += Temp * 400;
                DDay -= Temp * YEAR_400_DAY;
            }

            if (DDay >= YEAR_100_DAY)
            {
                Temp = DDay / YEAR_100_DAY;
                DYear += Temp * 100;
                DDay -= Temp * YEAR_100_DAY;
            }

            if (DDay >= YEAR_4_DAY)
            {
                Temp = DDay / YEAR_4_DAY;
                DYear += Temp * 4;
                DDay -= Temp * YEAR_4_DAY;
            }

            if (DDay >= YEAR_3_DAY_AFTER2000)
            {
                DYear += 3;
                DDay -= YEAR_3_DAY_AFTER2000;
            }
            else if (DDay >= YEAR_2_DAY_AFTER2000)
            {
                DYear += 2;
                DDay -= YEAR_2_DAY_AFTER2000;
            }
            else if (DDay >= YEAR_1_DAY_AFTER2000)
            {
                DYear += 1;
                DDay -= YEAR_1_DAY_AFTER2000;
            }

        }
        else
        {
            if (DDay >= YEAR_4_DAY)
            {
                Temp = DDay / YEAR_4_DAY;
                DYear += Temp * 4;
                DDay -= Temp * YEAR_4_DAY;
            }

            if (DDay >= YEAR_3_DAY_BEFORE2000)
            {
                DYear += 3;
                DDay -= YEAR_3_DAY_BEFORE2000;
            }
            else if (DDay >= YEAR_2_DAY_BEFORE2000)
            {
                DYear += 2;
                DDay -= YEAR_2_DAY_BEFORE2000;
            }
            else if (DDay >= YEAR_1_DAY_BEFORE2000)
            {
                DYear += 1;
                DDay -= YEAR_1_DAY_BEFORE2000;
            }
        }

        Date->Year = DYear + 1970;
        LeapFlag = IsLeapYear(Date->Year);
        Date->Mon = 12;
        for (i = 1; i < 12; i++)
        {
            if (DDay < DayTable[LeapFlag][i])
            {
                Date->Mon = i;
                break;
            }
        }
        Date->Day = DDay - DayTable[LeapFlag][Date->Mon - 1] + 1;
    }

    Sec = Sec % 86400;
    Time->Hour = Sec / 3600;
    Sec = Sec % 3600;
    Time->Min = Sec / 60;
    Time->Sec = Sec % 60;
    return DDay;
}


/**
 * \brief get a byte (8bits) from a pointer
 *
 * Caller should ensure parameters are valid.
 *
 * \param ptr           the pointer
 * \return              the byte value
 */
uint8_t BytesGet8(const void *ptr)
{
    const uint8_t *p = (const uint8_t *)ptr;
    return p[0];
}

/**
 * \brief put a byte (8bits) to a pointer
 *
 * Caller should ensure parameters are valid.
 *
 * \param ptr           the pointer
 * \param v             the byte value
 */
void BytesPut8(void *ptr, uint8_t v)
{
    uint8_t *p = (uint8_t *)ptr;
    p[0] = v;
}

/**
 * \brief get a big endian short (16bits) from a pointer
 *
 * Caller should ensure parameters are valid.
 *
 * \param ptr           the pointer, may be unaligned
 * \return              the short value
 */
uint16_t BytesGetBe16(const void *ptr)
{
    const uint8_t *p = (const uint8_t *)ptr;
    return (p[0] << 8) | p[1];
}

/**
 * \brief put a big endian short (16bits) to a pointer
 *
 * Caller should ensure parameters are valid.
 *
 * \param ptr           the pointer, may be unaligned
 * \param v             the short value
 */
void BytesPutBe16(void *ptr, uint16_t v)
{
    uint8_t *p = (uint8_t *)ptr;
    p[0] = (v >> 8) & 0xff;
    p[1] = v & 0xff;
}

/**
 * \brief get a big endian word (32bits) from a pointer
 *
 * Caller should ensure parameters are valid.
 *
 * \param ptr           the pointer, may be unaligned
 * \return              the word value
 */
uint32_t BytesGetBe32(const void *ptr)
{
    const uint8_t *p = (const uint8_t *)ptr;
    return (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
}

/**
 * \brief put a big endian word (32bits) to a pointer
 *
 * Caller should ensure parameters are valid.
 *
 * \param ptr           the pointer, may be unaligned
 * \param v             the word value
 */
void BytesPutBe32(void *ptr, uint32_t v)
{
    uint8_t *p = (uint8_t *)ptr;
    p[0] = (v >> 24) & 0xff;
    p[1] = (v >> 16) & 0xff;
    p[2] = (v >> 8) & 0xff;
    p[3] = v & 0xff;
}

/**
 * \brief get a little endian short (16bits) from a pointer
 *
 * Caller should ensure parameters are valid.
 *
 * \param ptr           the pointer, may be unaligned
 * \return              the short value
 */
uint16_t BytesGetLe16(const void *ptr)
{
    const uint8_t *p = (const uint8_t *)ptr;
    return p[0] | (p[1] << 8);
}

/**
 * \brief put a little endian short (16bits) to a pointer
 *
 * Caller should ensure parameters are valid.
 *
 * \param ptr           the pointer, may be unaligned
 * \param v             the short value
 */
void BytesPutLe16(void *ptr, uint16_t v)
{
    uint8_t *p = (uint8_t *)ptr;
    p[0] = v & 0xff;
    p[1] = (v >> 8) & 0xff;
}

/**
 * \brief get a little endian word (32bits) from a pointer
 *
 * Caller should ensure parameters are valid.
 *
 * \param ptr           the pointer, may be unaligned
 * \return              the word value
 */
uint32_t BytesGetLe32(const void *ptr)
{
    const uint8_t *p = (const uint8_t *)ptr;
    return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24);
}

/**
 * \brief put a little endian word (32bits) to a pointer
 *
 * Caller should ensure parameters are valid.
 *
 * \param ptr           the pointer, may be unaligned
 * \param v             the word value
 */
void BytesPutLe32(void *ptr, uint32_t v)
{
    uint8_t *p = (uint8_t *)ptr;
    p[0] = v & 0xff;
    p[1] = (v >> 8) & 0xff;
    p[2] = (v >> 16) & 0xff;
    p[3] = (v >> 24) & 0xff;
}

/**
 * \brief get a little endian long long (64bits) from a pointer
 *
 * Caller should ensure parameters are valid.
 *
 * \param ptr           the pointer, may be unaligned
 * \return              the long long value
 */
uint64_t BytesGetLe64(const void *ptr)
{
    const uint8_t *p = (const uint8_t *)ptr;
    return BytesGetLe32(p) | ((uint64_t)BytesGetLe32(p + 4) << 32);
}

/**
 * \brief put a little endian long long (64bits) to a pointer
 *
 * Caller should ensure parameters are valid.
 *
 * \param ptr           the pointer, may be unaligned
 * \param v             the long long value
 */
void BytesPutLe64(void *ptr, uint64_t v)
{
    uint8_t *p = (uint8_t *)ptr;
    BytesPutLe32(p, v & 0xffffffff);
    BytesPutLe32(p + 4, (v >> 32) & 0xffffffff);
}

uint8_t BytesGet8FromBuf(Buffer_Struct *Buf)
{
    Buf->Pos++;
    return Buf->Data[Buf->Pos - 1];
}


void BytesPut8ToBuf(Buffer_Struct *Buf, uint8_t v)
{
    Buf->Data[Buf->Pos] = v;
    Buf->Pos++;
}

uint16_t BytesGetBe16FromBuf(Buffer_Struct *Buf)
{
    Buf->Pos += 2;
    return (Buf->Data[Buf->Pos - 2] << 8) | Buf->Data[Buf->Pos - 1];
}

void BytesPutBe16ToBuf(Buffer_Struct *Buf, uint16_t v)
{
    Buf->Data[Buf->Pos] = (v >> 8) & 0xff;
    Buf->Data[Buf->Pos + 1] = v & 0xff;
    Buf->Pos += 2;
}

uint32_t BytesGetBe32FromBuf(Buffer_Struct *Buf)
{
    Buf->Pos += 4;
    return (Buf->Data[Buf->Pos - 4] << 24) | (Buf->Data[Buf->Pos - 3] << 16) | (Buf->Data[Buf->Pos - 2] << 8) | Buf->Data[Buf->Pos - 1];
}

void BytesPutBe32ToBuf(Buffer_Struct *Buf, uint32_t v)
{
    Buf->Data[Buf->Pos] = (v >> 24) & 0xff;
    Buf->Data[Buf->Pos + 1] = (v >> 16) & 0xff;
    Buf->Data[Buf->Pos + 2] = (v >> 8) & 0xff;
    Buf->Data[Buf->Pos + 3] = v & 0xff;
    Buf->Pos += 4;
}


uint16_t BytesGetLe16FromBuf(Buffer_Struct *Buf)
{
    Buf->Pos += 2;
    return Buf->Data[Buf->Pos - 2] | (Buf->Data[Buf->Pos - 1] << 8);
}

void BytesPutLe16ToBuf(Buffer_Struct *Buf, uint16_t v)
{
    Buf->Data[Buf->Pos] = v & 0xff;
    Buf->Data[Buf->Pos + 1] = (v >> 8) & 0xff;
    Buf->Pos+= 2;
}

uint32_t BytesGetLe32FromBuf(Buffer_Struct *Buf)
{
    Buf->Pos += 4;
    return Buf->Data[Buf->Pos - 4] | (Buf->Data[Buf->Pos - 3] << 8) | (Buf->Data[Buf->Pos - 2] << 16) | (Buf->Data[Buf->Pos - 1] << 24);
}

void BytesPutLe32ToBuf(Buffer_Struct *Buf, uint32_t v)
{
    Buf->Data[Buf->Pos] = v & 0xff;
    Buf->Data[Buf->Pos + 1] = (v >> 8) & 0xff;
    Buf->Data[Buf->Pos + 2] = (v >> 16) & 0xff;
    Buf->Data[Buf->Pos + 3] = (v >> 24) & 0xff;
    Buf->Pos += 4;
}

uint64_t BytesGetLe64FromBuf(Buffer_Struct *Buf)
{
    uint64_t Temp = BytesGetLe32FromBuf(Buf);
    return Temp | ((uint64_t)BytesGetLe32FromBuf(Buf) << 32);
}

void BytesPutLe64ToBuf(Buffer_Struct *Buf, uint64_t v)
{

    BytesPutLe32ToBuf(Buf, v & 0xffffffff);
    BytesPutLe32ToBuf(Buf, (v >> 32) & 0xffffffff);
}

float BytesGetFloatFromBuf(Buffer_Struct *Buf)
{
    float Temp;
    Buf->Pos += 4;
    memcpy(&Temp, &Buf->Data[Buf->Pos - 4], 4);
    return Temp;
}

void BytesPutFloatToBuf(Buffer_Struct *Buf, float v)
{
    memcpy(&Buf->Data[Buf->Pos], &v, 4);
    Buf->Pos += 4;
}

double BytesGetDoubleFromBuf(Buffer_Struct *Buf)
{
    double Temp;
    Buf->Pos += 8;
    memcpy(&Temp, &Buf->Data[Buf->Pos - 8], 8);
    return Temp;
}

void BytesPutDoubleToBuf(Buffer_Struct *Buf, double v)
{
    memcpy(&Buf->Data[Buf->Pos], &v, 8);
    Buf->Pos += 8;
}

void BytesGetMemoryFromBuf(Buffer_Struct *Buf, uint8_t *Data, uint32_t Len)
{
    memcpy(Data, &Buf->Data[Buf->Pos], Len);
    Buf->Pos += Len;
}

/*
 * 转义打包
 * 标识Flag，即包头包尾加入Flag
 * 数据中遇到Flag -> Code F1
 * 数据中遇到Code -> Code F2
 */

uint32_t TransferPack(uint8_t Flag, uint8_t Code, uint8_t F1, uint8_t F2, uint8_t *InBuf, uint32_t Len, uint8_t *OutBuf)
{
    uint32_t TxLen = 0;
    uint32_t i;
    OutBuf[0] = Flag;
    TxLen = 1;
    for (i = 0; i < Len; i++)
    {
        if (InBuf[i] == Flag)
        {
            OutBuf[TxLen++] = Code;
            OutBuf[TxLen++] = F1;
        }
        else if (InBuf[i] == Code)
        {
            OutBuf[TxLen++] = Code;
            OutBuf[TxLen++] = F2;
        }
        else
        {
            OutBuf[TxLen++] = InBuf[i];
        }
    }
    OutBuf[TxLen++] = Flag;
    return TxLen;
}


/*
 * 转义解包
 * 标识Flag，即包头包尾加入Flag
 * 数据中遇到Code F1 -> Flag
 * 数据中遇到Code F2 -> Code
 * 数据中遇到Flag 出错返回0
 */
uint32_t TransferUnpack(uint8_t Flag, uint8_t Code, uint8_t F1, uint8_t F2, uint8_t *InBuf, uint32_t Len, uint8_t *OutBuf)
{
    uint32_t RxLen = 0;
    uint32_t i = 0;
    while (i < Len)
    {
        if (InBuf[i] == Code)
        {
            if (InBuf[i+1] == F1)
            {
                OutBuf[RxLen++] = Flag;
            }
            else if (InBuf[i+1] == F2)
            {
                OutBuf[RxLen++] = Code;
            }
            else
            {
                return 0;
            }
            i += 2;
        }
        else if (InBuf[i] == Flag)
        {
            return 0;
        }
        else
        {
            OutBuf[RxLen++] = InBuf[i++];
        }
    }
    return RxLen;
}

/*
 * Insert a new entry between two known consecutive entries.
 *
 * This is only for internal llist manipulation where we know
 * the prev/next entries already!
 */
void __llist_add(llist_head *p,
                         llist_head *prev,
                         llist_head *next)
{
    next->prev = p;
    p->next = next;
    p->prev = prev;
    prev->next = p;
}

/**
 * llist_add - add a new entry
 * @new: new entry to be added
 * @head: llist head to add it after
 *
 * Insert a new entry after the specified head.
 * This is good for implementing stacks.
 */
void llist_add(llist_head *p, llist_head *head)
{
    __llist_add(p, head, head->next);
}

/**
 * llist_add_tail - add a new entry
 * @new: new entry to be added
 * @head: llist head to add it before
 *
 * Insert a new entry before the specified head.
 * This is useful for implementing queues.
 */
void llist_add_tail(llist_head *p, llist_head *head)
{
    __llist_add(p, head->prev, head);
}

/*
 * Delete a llist entry by making the prev/next entries
 * point to each other.
 *
 * This is only for internal llist manipulation where we know
 * the prev/next entries already!
 */
void __llist_del(llist_head * prev, llist_head * next)
{
    next->prev = prev;
    prev->next = next;
}

/**
 * llist_del - deletes entry from llist.
 * @entry: the element to delete from the llist.
 * Note: llist_empty on entry does not return true after this, the entry is
 * in an undefined state.
 */
void llist_del(llist_head *entry)
{
    if (entry->prev && entry->next)
    {
        __llist_del(entry->prev, entry->next);
    }
    entry->next = LLIST_POISON1;
    entry->prev = LLIST_POISON2;
}

/**
 * llist_del_init - deletes entry from llist and reinitialize it.
 * @entry: the element to delete from the llist.
 */
void llist_del_init(llist_head *entry)
{
    __llist_del(entry->prev, entry->next);
    INIT_LLIST_HEAD(entry);
}

/**
 * llist_move - delete from one llist and add as another's head
 * @llist: the entry to move
 * @head: the head that will precede our entry
 */
void llist_move(llist_head *llist, llist_head *head)
{
        __llist_del(llist->prev, llist->next);
        llist_add(llist, head);
}

/**
 * llist_move_tail - delete from one llist and add as another's tail
 * @llist: the entry to move
 * @head: the head that will follow our entry
 */
void llist_move_tail(llist_head *llist,
                  llist_head *head)
{
        __llist_del(llist->prev, llist->next);
        llist_add_tail(llist, head);
}

void *llist_traversal(llist_head *head, CBFuncEx_t cb, void *pData)
{
    llist_head *node = head->next;
    llist_head *del;
    int32_t result;
    while (!llist_empty(head) && (node != head))
    {
        result = cb((void *)node, pData);
        if (result > 0)
        {
            return node;
        }
        else
        {
            del = node;
            node = node->next;
            if (result < 0)
            {
                llist_del(del);
                cb((void *)del, NULL);
            }
        }
    }
    return NULL;
}

/**
 * llist_empty - tests whether a llist is empty
 * @head: the llist to test.
 */
int llist_empty(const llist_head *head)
{
    return head->next == head;
}

uint32_t llist_num(const llist_head *head)
{
    llist_head *node = head->next;
    uint32_t num = 0;
    if (!node)
        return num;
    while(node != head)
    {
        num++;
        node = node->next;
    }
    return num;
}