void my_free(void * mem)
{
os_heap_free(0, mem);
}
int read_from_device(void *outbuf, u32 size, u32 lba)
{
int r=-1;
int l;
r = __DI_CheckOffset(lba);
if (r) return r;
r=-1;
lba += dip.base + dip.offset;
if (dip.has_id)
{
/* Free memory */
if(fat_mode<=0)
{
if (table_lba)
os_heap_free(0, table_lba);
table_lba=NULL;
ciso_lba=-1;
}
return read_from_device_out(outbuf, size, lba);
}
if(ciso_lba>=0 && ciso_lba!=0x7fffffff)
{
u32 lba_glob=0;
if(table_lba==NULL) table_lba= (void *) os_heap_alloc_aligned(0, 2048*4, 32); // from global heap
//ciso_lba=265;
/* Allocate memory */
u8 * buff = dip_alloc_aligned(0x800, 32);
if (!buff)
ciso_lba=-1;
if(ciso_lba>=0)
{
while(1)
{
lba_glob=(ciso_lba+16)<<9;
r=read_from_device_out(buff, 2048, ciso_lba<<9); // read 16 cached sectors
if(r<0) {ciso_lba=-1;break;}
if((buff[0]=='C' && buff[1]=='I' && buff[2]=='S' && buff[3]=='O')) break;
else
{
if(ciso_lba!=0) {ciso_lba=0;continue;}
ciso_lba=-1;
}
break;
}
}
// if(ciso_lba>=0 && table_lba && buff) ciso_lba=0x7fffffff;
if(ciso_lba>=0 && table_lba)
{
ciso_size=(((u32)buff[4])+(((u32)buff[5])<<8)+(((u32)buff[6])<<16)+(((u32)buff[7])<<24))/4;
dip_memset(mem_index,0,2048);
for(l=0;l<16384;l++)
{
if(((l+8) & 2047)==0 && (l+8)>=2048)
{
r=read_from_device_out(buff, 2048, (ciso_lba+((l+8)>>11))<<9); // read 16 cached sectors
if(r<0) {ciso_lba=-1;break;}
}
if((l & 7)==0) table_lba[l>>3]=lba_glob;
if(buff[(8+l) & 2047])
{
mem_index[l>>3]|=1<<(l & 7);
lba_glob+=ciso_size;
}
}
void Mem_Free(void *ptr)
{
/* Free memory */
os_heap_free(hid, ptr);
}
void USB_Free(void *ptr)
{
return os_heap_free(heap, ptr);
}
