/*
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* sdram_hp.c
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* Description:
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*
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* Created on: 2014-10-8
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* Author: DELL
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* Modify:
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*/
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#include <stdio.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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#include "hmem.h"
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//int _heap_install(void *base, size_t length, int userid, int pmdm /* -1 dm, 1 pm */);
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#define BANKNUM 4
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static const int banksize[BANKNUM] ={32*1024,0*1024,16*1024,1024*1024*8};
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static const int bankbase[BANKNUM] ={0x000e0000, 0x000C7000, 0x000ba000, 0x00660000};
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static const mymalloc_style banktype[BANKNUM] ={SRAM_DM,SRAM_DM,SRAM_PM,SRAM_DDR};
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int memIndex[BANKNUM] ={0,0,0,0};
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static unsigned short total_inner_mem = 0;//////////////////////////////////////
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static uvoidptr memalloc(mymalloc_style type,int size)
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{
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int i;
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uvoidptr ptr = NULL;
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for(i =0 ;i<BANKNUM;i++) {
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if(banktype[i] == type
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&& memIndex[i]+size <= banksize[i]) {
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ptr = (uvoidptr)(bankbase[i]+memIndex[i]);
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memIndex[i] += size;
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break;
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}
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}
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return ptr;
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}
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uvoid hmem_init()
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{
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int i;/////////////////////////////////////////////////
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memset(memIndex, 0, BANKNUM);
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//////////////////////////////////////////////
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for(i =0 ;i<BANKNUM-1;i++) {
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total_inner_mem += banksize[i];
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}
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//////////////////////////////////////////////
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}
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uvoidptr mymalloc(mymalloc_style type, uint32_t size)
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{
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uvoidptr ptr = unull;
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switch(type){
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case SRAM_DM:
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case SRAM_PM:
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case SRAM_DDR:
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ptr = memalloc(type , size);
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break;
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case SRAM_AUTO:
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ptr = memalloc(SRAM_DM,size);
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if(ptr == unull){
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ptr = memalloc(SRAM_PM, size);
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}
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if(ptr == unull){
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ptr = memalloc(SRAM_DDR, size);
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}
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break;
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}
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return ptr;
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}
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uvoid myfree(mymalloc_style type, uvoidptr ptr)
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{
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switch(type){
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case SRAM_DM:
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break;
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case SRAM_PM:
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break;
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case SRAM_DDR:
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break;
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case SRAM_AUTO:
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break;
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}
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}
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short hmem_perused(mymalloc_style type)
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{
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unsigned short used =0;
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//////////////////////////////////////////////////
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float used_ratio = 0;
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int i;
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for(i =0 ;i<BANKNUM-1;i++) {
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used += memIndex[i];
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}
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used_ratio = ((float)used)/((float)total_inner_mem);
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used = used_ratio*10000;
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/////////////////////////////////////////////////////
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return used;
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}
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uvoid hmem_free()
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{
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memset(memIndex, 0, BANKNUM);
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}
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void* sram_malloc(int memtype , int size)
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{
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void* p = 0;
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if(memtype == 2) {
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p =mymalloc(SRAM_DDR, size);
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}
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else {
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p = mymalloc(SRAM_AUTO, size);
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}
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return p;
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}
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void sram_free(int memtype ,void* ptr)
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{
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}
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int sram_free_space(int memtype)
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{
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return 0;
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}
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