feat: KT mBMS 펌웨어 3종(HW1/2/3) 및 통합 빌드 환경 초기 커밋 (V4.0.0.1)

mBMS_APP_V3117/MALLOC/malloc.c

@@ -0,0 +1,223 @@
+#include "malloc.h"
+/**
+  ******************************************************************************
+  * @file    STM32F4xx_IAP/src/malloc.h
+  * @author  MCD Application Team
+  * @version V1.0.0
+  * @date    10-October-2015
+  * @brief   Main program body
+  ******************************************************************************
+  * @attention
+  *
+  * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+  * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+  * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+  * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+  * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+  * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+  *
+  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
+  ******************************************************************************
+  */ 
+
+
+//Memory pool (4-byte alignment)
+//__align(4) u8 mem1base[MEM1_MAX_SIZE];
+__align(4) u8 mem3base[MEM3_MAX_SIZE] __attribute__((at(0x10000000))); //CMM within the memory pool
+//Memory management tables
+//u16 mem1mapbase[MEM1_ALLOC_TABLE_SIZE];													//The internal SRAM memory pool MAP
+u16 mem3mapbase[MEM3_ALLOC_TABLE_SIZE] __attribute__((at(0X10000000 + MEM3_MAX_SIZE)));	//Internal CCM pools MAP
+//Memory management parameters	   
+const u32 memtblsize[SRAMBANK] = {MEM3_ALLOC_TABLE_SIZE};	//Memory table size
+const u32 memblksize[SRAMBANK] = {MEM3_BLOCK_SIZE};					//Memory block size
+const u32 memsize   [SRAMBANK] = {MEM3_MAX_SIZE};							//Total memory size
+
+//Memory management controller
+struct _m_mallco_dev mallco_dev=
+{
+	mymem_init,							//Memory initialization
+	mem_perused,						//Memory usage
+	mem3base,							//Memory pool
+	mem3mapbase,						//Memory management tables
+	0,  		 						//Memory management is not ready
+};
+
+//Copy memory
+//*des:Destination address
+//*src:Source address
+//n:Need to copy memory length (bytes)
+void mymemcpy(void *des,void *src,u32 n)
+{
+	u8 *xdes = des;
+	u8 *xsrc = src;
+	while(n--) *xdes++ = *xsrc++;
+}
+
+//Setting memory
+//*s:Memory address
+//c :The value to be set
+//count:Need to set the memory size(Bytes)
+void mymemset(void*s,u8 c,u32 count)
+{
+	u8 *xs = s;
+	while(count--) *xs++=c;
+}
+
+//Memory management class  
+//memx:Belongs to a block of memory
+void mymem_init(u8 memx)
+{
+	mymemset(mallco_dev.memmap [memx], 0, memtblsize[memx] * 2); 	//Memory status table is cleared to zero
+	mymemset(mallco_dev.membase[memx], 0, memsize   [memx]);		//Memory pool all data to zero  
+	mallco_dev.memrdy[memx] = 1;									//Memory initialized OK  
+}
+
+//Get memory usage
+//memx:Belongs to a block of memory
+//Return value: usage (0~100)
+u8 mem_perused(u8 memx)  
+{  
+    u32 used = 0;  
+    u32 i;  
+    for (i = 0; i < memtblsize[memx]; i++)  
+    {  
+        if (mallco_dev.memmap[memx][i]) used++; 
+    } 
+    return (used * 100) / (memtblsize[memx]);  
+} 
+
+//Memory allocation (internal call)
+//memx:Belongs to a block of memory
+//size:Amount of memory to allocate (in bytes)
+//The return value:0XFFFFFFFF,To indicate an error; the other, the memory offset
+u32 _mem_malloc(u8 memx,u32 size)  
+{  
+    signed long offset=0;  
+    u16 nmemb;	//Required number of memory blocks  
+		u16 cmemb=0;//Number of contiguous blocks of free memory
+    u32 i;  
+    if(!mallco_dev.memrdy[memx])mallco_dev.init(memx);//Is not initialized, perform the initialization
+    if(size==0)return 0XFFFFFFFF;//Do not need to allocate
+    nmemb=size/memblksize[memx];  	//Gets the required number of contiguous blocks of memory allocated
+    if(size%memblksize[memx])nmemb++;  
+    for(offset=memtblsize[memx]-1;offset>=0;offset--)//Search the entire memory control  
+    {     
+		if(!mallco_dev.memmap[memx][offset])cmemb++;//Increase the number of contiguous blocks of free memory
+		else cmemb=0;								//Contiguous blocks of memory to zero
+		if(cmemb==nmemb)							//Find nmemb consecutive empty memory blocks
+		{
+            for(i=0;i<nmemb;i++)  					//Mark a block of memory is not empty 
+            {  
+                mallco_dev.memmap[memx][offset+i]=nmemb;  
+            }  
+            return (offset*memblksize[memx]);//Returns the offset address  
+		}
+    }  
+    return 0XFFFFFFFF;//Not found consistent with allocated memory block  
+}  
+
+//Free memory (internal call)
+//memx:Belongs to a block of memory
+//offset:Memory address of offset
+//Return values: 0, release success; 1, release failed;
+u8 _mem_free(u8 memx,u32 offset)  
+{  
+	int i;  
+  if(!mallco_dev.memrdy[memx])//Is not initialized, perform the initialization
+	{
+		mallco_dev.init(memx);    
+    return 1;//Not initialized  
+  }  
+  if(offset<memsize[memx])//Offset within the memory pool. 
+  {  
+		int index=offset/memblksize[memx];			//Offset where the memory block number  
+    int nmemb=mallco_dev.memmap[memx][index];	//Number of memory blocks
+    for(i=0;i<nmemb;i++)  						//Zero out memory blocks
+    {  
+			mallco_dev.memmap[memx][index+i]=0;  
+    }  
+    return 0;  
+  }else return 2;//Offset Super.  
+}  
+
+//Free memory (external call)
+//memx:Belongs to a block of memory
+//ptr:Memory address 
+void myfreeOrg(u8 memx,void *ptr)  
+{  
+	u32 offset;  
+	if(ptr==NULL)return;//Address 0.  
+ 	offset=(u32)ptr-(u32)mallco_dev.membase[memx];  
+	_mem_free(memx,offset);//Free up memory     
+}  
+
+//Free memory (external call)
+//memx:Belongs to a block of memory
+//ptr:Memory address 
+void myfree(void *ptr)  
+{  
+	u32 offset;  
+	if (ptr == NULL) return;		// Address 0.  
+ 	offset = (u32)ptr - (u32)mallco_dev.membase[SRAMCCM];  
+	_mem_free(SRAMCCM, offset);		// Free up memory     
+}  
+
+//Allocating memory(External call)
+//memx:Belongs to a block of memory
+//size:Memory size (in bytes)
+//Return values: the first address of the allocated memory.
+void *mymallocOrg(u8 memx,u32 size)  
+{  
+  u32 offset;  									      
+	offset=_mem_malloc(memx,size);  	   				   
+  if(offset==0XFFFFFFFF)return NULL;  
+  else return (void*)((u32)mallco_dev.membase[memx]+offset);  
+}  
+
+//Allocating memory(External call)
+//memx:Belongs to a block of memory
+//size:Memory size (in bytes)
+//Return values: the first address of the allocated memory.
+void *mymalloc(u32 size)  
+{  
+  u32 offset;  									      
+	offset=_mem_malloc(SRAMCCM, size);  	   				   
+  if (offset == 0XFFFFFFFF) return NULL;  
+  else return (void*)((u32)mallco_dev.membase[SRAMCCM] + offset);  
+}  
+
+//Reallocating memory (external call)
+//memx:Belongs to a block of memory
+//*ptr:The old memory address
+//size:Amount of memory to allocate (in bytes)
+//Return values: the first address of the newly allocated memory.
+void *myreallocOrg(u8 memx,void *ptr,u32 size)  
+{  
+	u32 offset;  
+	offset=_mem_malloc(memx,size);  
+	if(offset==0XFFFFFFFF)return NULL;     
+	else  
+	{  									   
+		mymemcpy((void*)((u32)mallco_dev.membase[memx]+offset),ptr,size);	//Copy the old memory contents to the new memory   
+		myfreeOrg(memx,ptr);  											  		//Free old memory
+		return (void*)((u32)mallco_dev.membase[memx]+offset);  				//Returns a new memory address
+	}  
+}
+
+//Reallocating memory (external call)
+//memx:Belongs to a block of memory
+//*ptr:The old memory address
+//size:Amount of memory to allocate (in bytes)
+//Return values: the first address of the newly allocated memory.
+void *myrealloc(void *ptr, u32 size)  
+{  
+	u32 offset;  
+	offset = _mem_malloc(SRAMCCM, size);  
+	if (offset == 0XFFFFFFFF) return NULL;     
+	else  
+	{  									   
+		mymemcpy((void*)((u32)mallco_dev.membase[SRAMCCM] + offset), ptr, size);	//Copy the old memory contents to the new memory   
+		myfree(ptr);  											  																		//Free old memory
+		return (void*)((u32)mallco_dev.membase[SRAMCCM] + offset);  							//Returns a new memory address
+	}  
+}