Index: uspace/drv/audio/sb16/Makefile
===================================================================
--- uspace/drv/audio/sb16/Makefile	(revision 0f2e7c12c206d68480a6f250bb708a71300fbf8b)
+++ uspace/drv/audio/sb16/Makefile	(revision 84dec070a7b3e0830386405813c431ff9f9c5a40)
@@ -39,4 +39,5 @@
 SOURCES = \
 	dsp.c \
+	dma_controller.c \
 	main.c \
 	mixer.c \
Index: uspace/drv/audio/sb16/dma.h
===================================================================
--- uspace/drv/audio/sb16/dma.h	(revision 0f2e7c12c206d68480a6f250bb708a71300fbf8b)
+++ uspace/drv/audio/sb16/dma.h	(revision 84dec070a7b3e0830386405813c431ff9f9c5a40)
@@ -42,5 +42,4 @@
 
 #define DMA_ALIGNENT 65536
-#define PAGE_SIZE 4096
 
 /** Get physical address translation
Index: uspace/drv/audio/sb16/dma_controller.c
===================================================================
--- uspace/drv/audio/sb16/dma_controller.c	(revision 84dec070a7b3e0830386405813c431ff9f9c5a40)
+++ uspace/drv/audio/sb16/dma_controller.c	(revision 84dec070a7b3e0830386405813c431ff9f9c5a40)
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2011 Jan Vesely
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/** @addtogroup drvaudiosb16
+ * @{
+ */
+/** @file
+ * @brief DMA memory management
+ */
+#include <assert.h>
+#include <errno.h>
+
+#include "dma_controller.h"
+
+int dma_setup_channel(unsigned channel, uintptr_t pa, size_t size)
+{
+	return ENOTSUP;
+}
+
+/**
+ * @}
+ */
Index: uspace/drv/audio/sb16/dma_controller.h
===================================================================
--- uspace/drv/audio/sb16/dma_controller.h	(revision 84dec070a7b3e0830386405813c431ff9f9c5a40)
+++ uspace/drv/audio/sb16/dma_controller.h	(revision 84dec070a7b3e0830386405813c431ff9f9c5a40)
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2011 Jan Vesely
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/** @addtogroup drvaudiosb16
+ * @{
+ */
+/** @file
+ * @brief DMA memory management
+ */
+#ifndef DRV_AUDIO_SB16_DMA_CONTROLLER_H
+#define DRV_AUDIO_SB16_DMA_CONTROLLER_H
+
+int dma_setup_channel(unsigned channel, uintptr_t pa, size_t size);
+
+#endif
+/**
+ * @}
+ */
Index: uspace/drv/audio/sb16/dsp.c
===================================================================
--- uspace/drv/audio/sb16/dsp.c	(revision 0f2e7c12c206d68480a6f250bb708a71300fbf8b)
+++ uspace/drv/audio/sb16/dsp.c	(revision 84dec070a7b3e0830386405813c431ff9f9c5a40)
@@ -36,4 +36,5 @@
 
 #include "dma.h"
+#include "dma_controller.h"
 #include "ddf_log.h"
 #include "dsp_commands.h"