130 lines
2.9 KiB
C
130 lines
2.9 KiB
C
/**
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*
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* \file
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*
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* \brief This module contains common APIs declarations.
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*
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* Copyright (c) 2016-2018 Microchip Technology Inc. and its subsidiaries.
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*
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* \asf_license_start
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*
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* \page License
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*
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* Subject to your compliance with these terms, you may use Microchip
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* software and any derivatives exclusively with Microchip products.
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* It is your responsibility to comply with third party license terms applicable
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* to your use of third party software (including open source software) that
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* may accompany Microchip software.
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*
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* THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
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* WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
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* INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
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* AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
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* LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
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* LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
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* SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
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* POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT
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* ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
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* RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
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* THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
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*
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* \asf_license_stop
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*
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*/
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#include "common/include/nm_common.h"
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void m2m_memcpy(uint8* pDst,uint8* pSrc,uint32 sz)
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{
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if(sz == 0) return;
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do
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{
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*pDst = *pSrc;
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pDst++;
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pSrc++;
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}while(--sz);
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}
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uint8 m2m_checksum(uint8* buf, int sz)
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{
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uint8 cs = 0;
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while(--sz)
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{
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cs ^= *buf;
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buf++;
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}
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return cs;
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}
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void m2m_memset(uint8* pBuf,uint8 val,uint32 sz)
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{
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if(sz == 0) return;
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do
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{
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*pBuf = val;
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pBuf++;
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}while(--sz);
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}
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uint16 m2m_strlen(uint8 * pcStr)
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{
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uint16 u16StrLen = 0;
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while(*pcStr)
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{
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u16StrLen ++;
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pcStr++;
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}
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return u16StrLen;
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}
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uint8 m2m_strncmp(uint8 *pcS1, uint8 *pcS2, uint16 u16Len)
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{
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for ( ; u16Len > 0; pcS1++, pcS2++, --u16Len)
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if (*pcS1 != *pcS2)
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return ((*(uint8 *)pcS1 < *(uint8 *)pcS2) ? -1 : +1);
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else if (*pcS1 == '\0')
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return 0;
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return 0;
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}
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/* Finds the occurance of pcStr in pcIn.
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If pcStr is part of pcIn it returns a valid pointer to the start of pcStr within pcIn.
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Otherwise a NULL Pointer is returned.
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*/
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uint8 * m2m_strstr(uint8 *pcIn, uint8 *pcStr)
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{
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uint8 u8c;
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uint16 u16StrLen;
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u8c = *pcStr++;
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if (!u8c)
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return (uint8 *) pcIn; // Trivial empty string case
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u16StrLen = m2m_strlen(pcStr);
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do {
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uint8 u8Sc;
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do {
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u8Sc = *pcIn++;
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if (!u8Sc)
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return (uint8 *) 0;
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} while (u8Sc != u8c);
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} while (m2m_strncmp(pcIn, pcStr, u16StrLen) != 0);
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return (uint8 *) (pcIn - 1);
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}
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sint8 m2m_memcmp(uint8 *pu8Buff1,uint8 *pu8Buff2 ,uint32 u32Size)
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{
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uint32 i;
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sint8 s8Result = 0;
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for(i = 0 ; i < u32Size ; i++)
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{
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if(pu8Buff1[i] != pu8Buff2[i])
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{
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s8Result = 1;
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break;
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}
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}
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return s8Result;
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}
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