/**
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*******************************************************************************
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* @FileName : utils.h
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* @Author : GaoQiu
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* @CreateDate: 2020-02-18
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* @Copyright : Copyright(C) GaoQiu
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* All Rights Reserved.
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*******************************************************************************
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*
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* The information contained herein is confidential and proprietary property of
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* GaoQiu and is available under the terms of Commercial License Agreement
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* between GaoQiu and the licensee in separate contract or the terms described
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* here-in.
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*
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* This heading MUST NOT be removed from this file.
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*
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* Licensees are granted free, non-transferable use of the information in this
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* file under Mutual Non-Disclosure Agreement. NO WARRENTY of ANY KIND is provided.
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*
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*******************************************************************************
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*/
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#ifndef UTILS_H_
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#define UTILS_H_
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#include "defs_types.h"
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void *xmemcpy(void *dst, const void *src, uint32_t n);
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int xmemcmp(const void *m1, const void *m2, uint32_t n);
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void *xmemset(void *buf, int c, uint32_t n);
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/**
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* @brief : Copy the the buffer 'srx' to the buffer 'dest'.
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*
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* @param : dest Pointer to destination buffer
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* @param : destLen length of destination buffer
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* @param : src Pointer to origin buffer
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* @param : srclen length of origin buffer
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*
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* @return: returns 0 if srclen > destLen.
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*/
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uint32_t x_copy(uint8_t *dest, uint32_t destLen, const uint8_t *src, uint32_t srclen);
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/**
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* @brief : Set the value 'val' into the buffer 'to', 'len' times.
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*
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* @param : to Pointer to destination buffer
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* @param : val value to be set in 'to'
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* @param : len number of times the value will be copied
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*
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* @return: none.
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*/
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void x_set(void *to, uint8_t val, uint32_t len);
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/**
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* @brief : Compare equal.
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* @param : a Pointer point to data memory.
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* @param : b Pointer point to data memory.
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* @param : size length of data.
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* @return: Returns 0 if equal, and non-zero otherwise
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*
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* Note: This function can only compare for equality.
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*/
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int x_compare(const uint8_t *a, const uint8_t *b, uint32_t size);
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/**
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* @brief : Reverse data.
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* @param : pdata Pointer point to data memory.
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* @param : len length of data.
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* @return: None.
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*/
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void _reverse(uint8_t *pdata, uint32_t len);
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/**
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* @brief : Reverse data.
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* @param : from Pointer point to input data buffer.
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* @param : to Pointer point to output data buffer.
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* @param : len length of data.
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* @return: None.
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*/
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void _swap(uint8_t *from, uint8_t *to, uint32_t len);
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//XXX:64M system clock
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static inline void sleep_us(uint32_t us)
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{
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for(int i=0; i<us; i++){
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for(volatile int i=0; i<7; i++){};
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}
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}
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#endif /* UTILS_H_ */
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