diff --git a/lib/interface.c b/lib/interface.c
index c7ef85e..d24b462 100644
--- a/lib/interface.c
+++ b/lib/interface.c
@@ -58,3 +58,48 @@ int cfg_read(unsigned int addr)
 
 	return *reg;
 }
+
+void *mem_alloc(const int length, const int byte_nb)
+{
+	assert(mem);
+
+	// calculate start of next array
+	int next_offset = mem_offset + mem_alloc_size(length, byte_nb);
+
+	if (MEM_SIZE < next_offset) {
+		fprintf(stderr,
+			"ERROR <Out Of Memory> attempted total memory allocation: %i bytes\n",
+			next_offset);
+		assert(0);
+	}
+	// pointer to new array
+	void *ptr = &mem[mem_offset];
+
+	// update memory pointer to the next free area
+	mem_offset = next_offset;
+
+	return ptr;
+}
+
+int mem_alloc_size(const int length, const int byte_nb)
+{
+	assert(length);
+	assert(byte_nb);
+
+	int size = length * byte_nb;
+	int remainder = size % sysconf(_SC_PAGESIZE);
+
+	if (0 != remainder) {
+		size = size + sysconf(_SC_PAGESIZE) - remainder;
+	}
+
+	return size;
+}
+
+int mem_alloc_length(const int length, const int byte_nb)
+{
+	assert(length);
+	assert(byte_nb);
+
+	return (mem_alloc_size(length, byte_nb) / byte_nb);
+}
diff --git a/lib/interface.h b/lib/interface.h
index 4c87c1b..b19e582 100644
--- a/lib/interface.h
+++ b/lib/interface.h
@@ -18,6 +18,12 @@ extern "C" {
 
 	int cfg_read(unsigned int addr);
 
+	// dma memory
+	void *mem_alloc(const int length, const int byte_nb);
+
+	int mem_alloc_size(const int length, const int byte_nb);
+
+	int mem_alloc_length(const int length, const int byte_nb);
 
 #ifdef __cplusplus
 }