#ifndef _MALLOC_H
#define _MALLOC_H
#include "sys.h"
//////////////////////////////////////////////////////////////////////////////////	 
//This program is for educational purposes only, without the author's permission, may not be used for any other purpose
//ALIENTEK STM32F4 Explorer Board
//Memory management-driver code   
//Hot Atomic @ALIENTEK
//Forum: www.openedv.com
//Date modified: 2014/5/6
//Version: V1.0
//All rights reserved pirated reserved.
//Copyright(C) Guangzhou wing electronic technology limited company 2009-2019
//All rights reserved
////////////////////////////////////////////////////////////////////////////////// 	 

#ifndef NULL
#define NULL 0
#endif

//Define three memory pools
#define SRAMCCM 	0  	//CCM pools (SRAM CPU can only access in this section!!! )

#define SRAMBANK  	1 	//Define the number of supported SRAM block

//Mem3 memory parameter set, mem3 CCM to manage CCM (pay special attention to this part of the SRAM, CPU access)
#define MEM3_BLOCK_SIZE	32  			//Block size is 32 bytes
#define MEM3_MAX_SIZE		60*1024 	//Maximum memory management 60k
#define MEM3_ALLOC_TABLE_SIZE MEM3_MAX_SIZE/MEM3_BLOCK_SIZE  //Memory table size

//Memory management controller
struct _m_mallco_dev
{
	void (*init)(u8);  		//Initialize
	u8 (*perused)(u8); 		//Memory usage
	u8 *membase[SRAMBANK]; //Memory pool management SRAMBANK a region of memory
	u16 *memmap[SRAMBANK];  //Memory status table
	u8 memrdy[SRAMBANK];   //Memory management is ready to
};
extern struct _m_mallco_dev mallco_dev;  //Defined in malloc.c

void mymemset(void *s,u8 c,u32 count);	 //Setting memory
void mymemcpy(void *des,void *src,u32 n);//Copy memory     
void mymem_init(u8 memx);					 //Memory initialization function (external/internal calls)
u8 mem_perused(u8 memx);				 //For memory usage (external/internal calls)
////////////////////////////////////////////////////////////////////////////////
//Users call a function
void myfree(void *ptr);  			//Memory release (external call)
void *mymalloc(u32 size);			//Memory allocation (external call)
void *myrealloc(void *ptr, u32 size);//Reallocating memory (external call)

#endif