55 lines
2.1 KiB
C
55 lines
2.1 KiB
C
#ifndef _MALLOC_H
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#define _MALLOC_H
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#include "sys.h"
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//////////////////////////////////////////////////////////////////////////////////
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//This program is for educational purposes only, without the author's permission, may not be used for any other purpose
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//ALIENTEK STM32F4 Explorer Board
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//Memory management-driver code
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//Hot Atomic @ALIENTEK
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//Forum: www.openedv.com
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//Date modified: 2014/5/6
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//Version: V1.0
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//All rights reserved pirated reserved.
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//Copyright(C) Guangzhou wing electronic technology limited company 2009-2019
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//All rights reserved
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//////////////////////////////////////////////////////////////////////////////////
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#ifndef NULL
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#define NULL 0
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#endif
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//Define three memory pools
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#define SRAMCCM 0 //CCM pools (SRAM CPU can only access in this section!!! )
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#define SRAMBANK 1 //Define the number of supported SRAM block
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//Mem3 memory parameter set, mem3 CCM to manage CCM (pay special attention to this part of the SRAM, CPU access)
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#define MEM3_BLOCK_SIZE 32 //Block size is 32 bytes
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#define MEM3_MAX_SIZE 60*1024 //Maximum memory management 60k
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#define MEM3_ALLOC_TABLE_SIZE MEM3_MAX_SIZE/MEM3_BLOCK_SIZE //Memory table size
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//Memory management controller
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struct _m_mallco_dev
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{
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void (*init)(u8); //Initialize
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u8 (*perused)(u8); //Memory usage
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u8 *membase[SRAMBANK]; //Memory pool management SRAMBANK a region of memory
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u16 *memmap[SRAMBANK]; //Memory status table
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u8 memrdy[SRAMBANK]; //Memory management is ready to
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};
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extern struct _m_mallco_dev mallco_dev; //Defined in malloc.c
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void mymemset(void *s,u8 c,u32 count); //Setting memory
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void mymemcpy(void *des,void *src,u32 n);//Copy memory
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void mymem_init(u8 memx); //Memory initialization function (external/internal calls)
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u8 mem_perused(u8 memx); //For memory usage (external/internal calls)
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////////////////////////////////////////////////////////////////////////////////
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//Users call a function
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void myfree(void *ptr); //Memory release (external call)
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void *mymalloc(u32 size); //Memory allocation (external call)
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void *myrealloc(void *ptr, u32 size);//Reallocating memory (external call)
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#endif
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