remove legacy libtdm backendsubmit/tizen/20220628.044343submit/tizen/20220627.072238accepted/tizen/unified/20220628.220148

Change-Id: I54aaef8bda1da509ea69b177ce3dd85035fc9f50

29 files changed, 27 insertions, 4545 deletions

diff --git a/configure.ac b/configure.ac
index 8885a6b..5842ed7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,8 +1,8 @@
 AC_PREREQ([2.60])
-AC_INIT([libtdm-drm],
+AC_INIT([hal-backend-tdm-drm],
         [1.0.0],
         [https://www.tizen.org],
-        [libtdm-drm])
+        [hal-backend-tdm-drm])
 
 AC_CONFIG_HEADERS([config.h])
 AC_CONFIG_SRCDIR([Makefile.am])
@@ -25,30 +25,15 @@ m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 
 PKG_CHECK_MODULES(UDEV, libudev, [udev=yes], [udev=no])
 
-# for libtdm-drm
-PKG_CHECK_MODULES(TDM_DRM, libtdm libtbm libdrm pixman-1)
-
-# for libhal-backend-tdm-drm
-PKG_CHECK_MODULES(LIBHAL_BACKEND_TDM_DRM, hal-api-common hal-api-tdm hal-api-tbm libdrm dlog pixman-1)
+PKG_CHECK_MODULES(LIBHAL_BACKEND_TDM_DRM, hal-api-common hal-api-tdm hal-api-tbm libtbm libdrm dlog pixman-1)
 
 if test x"$udev" = xyes; then
-	# for libtdm-drm
 	AC_DEFINE(HAVE_UDEV,1,[Enable udev-based monitor hotplug detection])
-	TDM_DRM_CFLAGS="$TDM_DRM_CFLAGS $UDEV_CFLAGS"
-	TDM_DRM_LIBS="$TDM_DRM_LIBS $UDEV_LIBS"
 
-	# for libhal-backend-tdm-drm
 	LIBHAL_BACKEND_TDM_DRM_CFLAGS="$LIBHAL_BACKEND_TDM_DRM_CFLAGS $UDEV_CFLAGS"
 	LIBHAL_BACKEND_TDM_DRM_LIBS="$LIBHAL_BACKEND_TDM_DRM_LIBS $UDEV_LIBS"
-	AC_SUBST(LIBHAL_BACKEND_TDM_DRM_CFLAGS)
-	AC_SUBST(LIBHAL_BACKEND_TDM_DRM_LIBS)
 fi
 
-# for libtdm-drm
-AC_SUBST(TDM_DRM_CFLAGS)
-AC_SUBST(TDM_DRM_LIBS)
-
-# for libhal-backend-tdm-drm
 AC_SUBST(LIBHAL_BACKEND_TDM_DRM_CFLAGS)
 AC_SUBST(LIBHAL_BACKEND_TDM_DRM_LIBS)
 
@@ -59,13 +44,6 @@ AC_DEFINE_UNQUOTED(LIBDRM_MINOR_VERSION, [`pkg-config --modversion libdrm | cut
 AC_DEFINE_UNQUOTED(LIBDRM_MICRO_VERSION, [`pkg-config --modversion libdrm | cut -d '.' -f 3`], dnl
                    [libdrm major version])
 
-# set the dir for the tbm module
-DEFAULT_TDM_MODULE_PATH="${libdir}/tdm"
-AC_ARG_WITH(tdm-module-path, AS_HELP_STRING([--with-tdm-module-path=PATH], [tdm module dir]),
-				[ TDM_MODULE_PATH="$withval" ],
-				[ TDM_MODULE_PATH="${DEFAULT_TDM_MODULE_PATH}" ])
-AC_SUBST(TDM_MODULE_PATH)
-
 # set the library dir for the tdm hal backend
 DEFAULT_HAL_LIBDIR="/hal/lib"
 AC_ARG_WITH(hal-libdir, AS_HELP_STRING([--with-hal-libdir=PATH], [hal backend library path]),
@@ -77,8 +55,6 @@ AC_SUBST(HAL_LIBDIR)
 # For enumerating devices in test case
 AC_OUTPUT([
 	Makefile
-	src/libhal-backend-tdm-drm/Makefile
-	src/libtdm-drm/Makefile
 	src/Makefile])
 
 echo ""
@@ -88,10 +64,3 @@ echo "LIBHAL_BACKEND_TDM_DRM_CFLAGS : $LIBHAL_BACKEND_TDM_DRM_CFLAGS"
 echo "LIBHAL_BACKEND_TDM_DRM_LIBS   : $LIBHAL_BACKEND_TDM_DRM_LIBS"
 echo "TDM_MODULE_DIR : $HAL_LIBDIR"
 echo ""
-echo ""
-echo "$PACKAGE_STRING will be compiled with:"
-echo ""
-echo "TDM_DRM_CFLAGS : $TDM_DRM_CFLAGS"
-echo "TDM_DRM_LIBS   : $TDM_DRM_LIBS"
-echo "TDM_MODULE_DIR : $TDM_MODULE_PATH"
-echo ""
diff --git a/packaging/libhal-backend-tdm-drm.manifest b/packaging/hal-backend-tdm-drm.manifest
index 75b0fa5..75b0fa5 100644
--- a/packaging/libhal-backend-tdm-drm.manifest
+++ b/packaging/hal-backend-tdm-drm.manifest
diff --git a/packaging/libtdm-drm.spec b/packaging/hal-backend-tdm-drm.spec
index 88470fb..978468b 100644
--- a/packaging/libtdm-drm.spec
+++ b/packaging/hal-backend-tdm-drm.spec
@@ -1,17 +1,15 @@
-Name:           libtdm-drm
+Name:           hal-backend-tdm-drm
 Version:        2.0.5
 Release:        0
-Summary:        Tizen Display Manager DRM Back-End Library
-Group:          Development/Libraries
+Summary:        hal-backend-tdm module for drm
+Group:          System/Libraries
 License:        MIT
 Source0:        %{name}-%{version}.tar.gz
-Source1001:	    %{name}.manifest
-Source1002:	    libhal-backend-tdm-drm.manifest
+Source1001:     %{name}.manifest
 
 BuildRequires: pkgconfig(libdrm)
 BuildRequires: pkgconfig(libudev)
 BuildRequires: pkgconfig(dlog)
-BuildRequires: pkgconfig(libtdm)
 BuildRequires: pkgconfig(libtbm)
 BuildRequires: pkgconfig(hal-api-common)
 BuildRequires: pkgconfig(hal-api-tdm)
@@ -19,23 +17,13 @@ BuildRequires: pkgconfig(hal-api-tbm)
 BuildRequires: pkgconfig(pixman-1)
 
 %description
-Back-End library of Tizen Display Manager DRM : libtdm-mgr DRM library
-
-%package -n hal-backend-tdm-drm
-Summary:	hal-backend-tdm module for drm
-Group:		System/Libraries
-Requires:	hal-api-tdm
-Requires:	hal-api-common
-
-%description -n hal-backend-tdm-drm
-descriptionion: hal tdm backend module for drm
+description: hal tdm backend module for drm
 
 %global TZ_SYS_RO_SHARE  %{?TZ_SYS_RO_SHARE:%TZ_SYS_RO_SHARE}%{!?TZ_SYS_RO_SHARE:/usr/share}
 
 %prep
 %setup -q
 cp %{SOURCE1001} .
-cp %{SOURCE1002} .
 
 %build
 %reconfigure --prefix=%{_prefix} --libdir=%{_libdir}  --disable-static \
@@ -53,28 +41,14 @@ mkdir -p %{buildroot}%{_hal_licensedir}/libhal-backend-tdm-drm
 cp -af COPYING %{buildroot}%{_hal_licensedir}/libhal-backend-tdm-drm
 
 %post
-if [ -f %{_libdir}/tdm/libtdm-default.so ]; then
-    rm -rf %{_libdir}/tdm/libtdm-default.so
-fi
-ln -s libtdm-drm.so %{_libdir}/tdm/libtdm-default.so
-
-%postun -p /sbin/ldconfig
-
-%post -n hal-backend-tdm-drm
 if [ -f %{_hal_libdir}/libhal-backend-tdm.so ]; then
     rm -rf %{_hal_libdir}/libhal-backend-tdm.so
 fi
 ln -s libhal-backend-tdm-drm.so %{_hal_libdir}/libhal-backend-tdm.so
 
-%postun -n hal-backend-tdm-drm -p /sbin/ldconfig
+%postun -p /sbin/ldconfig
 
 %files
-%defattr(-,root,root,-)
 %manifest %{name}.manifest
-%license COPYING
-%{_libdir}/tdm/libtdm-drm.so
-
-%files -n hal-backend-tdm-drm
-%manifest libhal-backend-tdm-drm.manifest
 %{_hal_licensedir}/libhal-backend-tdm-drm/COPYING
 %{_hal_libdir}/libhal-backend-*.so*
diff --git a/packaging/libtdm-drm.manifest b/packaging/libtdm-drm.manifest
deleted file mode 100644
index 75b0fa5..0000000
--- a/packaging/libtdm-drm.manifest
+++ /dev/null
@@ -1,5 +0,0 @@
-<manifest>
-    <request>
-        <domain name="_"/>
-    </request>
-</manifest>
diff --git a/src/Makefile.am b/src/Makefile.am
index 8cc98b1..d42bca9 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1 +1,18 @@
-SUBDIRS = libtdm-drm libhal-backend-tdm-drm
+AM_CFLAGS = \
+	$(LIBHAL_BACKEND_TDM_DRM_CFLAGS) \
+	-I$(top_srcdir)/src/libhal-backend-tdm-drm
+
+libhal_backend_tdm_drm_la_LTLIBRARIES = libhal-backend-tdm-drm.la
+libhal_backend_tdm_drm_ladir = @HAL_LIBDIR@
+libhal_backend_tdm_drm_la_LDFLAGS = -module -avoid-version
+libhal_backend_tdm_drm_la_LIBADD = $(LIBHAL_BACKEND_TDM_DRM_LIBS) -ldl
+
+libhal_backend_tdm_drm_la_SOURCES = \
+	tdm_backend_log.c \
+	tdm_backend_drm.c \
+	tdm_drm_display.c \
+	tdm_drm_format.c \
+	tdm_drm_hwc_window.c \
+	tdm_drm_hwc.c \
+	tdm_drm_pp.c
+
diff --git a/src/libhal-backend-tdm-drm/Makefile.am b/src/libhal-backend-tdm-drm/Makefile.am
deleted file mode 100644
index d42bca9..0000000
--- a/src/libhal-backend-tdm-drm/Makefile.am
+++ /dev/null
@@ -1,18 +0,0 @@
-AM_CFLAGS = \
-	$(LIBHAL_BACKEND_TDM_DRM_CFLAGS) \
-	-I$(top_srcdir)/src/libhal-backend-tdm-drm
-
-libhal_backend_tdm_drm_la_LTLIBRARIES = libhal-backend-tdm-drm.la
-libhal_backend_tdm_drm_ladir = @HAL_LIBDIR@
-libhal_backend_tdm_drm_la_LDFLAGS = -module -avoid-version
-libhal_backend_tdm_drm_la_LIBADD = $(LIBHAL_BACKEND_TDM_DRM_LIBS) -ldl
-
-libhal_backend_tdm_drm_la_SOURCES = \
-	tdm_backend_log.c \
-	tdm_backend_drm.c \
-	tdm_drm_display.c \
-	tdm_drm_format.c \
-	tdm_drm_hwc_window.c \
-	tdm_drm_hwc.c \
-	tdm_drm_pp.c
-
diff --git a/src/libtdm-drm/Makefile.am b/src/libtdm-drm/Makefile.am
deleted file mode 100644
index 16c3a35..0000000
--- a/src/libtdm-drm/Makefile.am
+++ /dev/null
@@ -1,16 +0,0 @@
-AM_CFLAGS = \
-	$(TDM_DRM_CFLAGS) \
-	-I$(top_srcdir)/src
-
-libtdm_drm_la_LTLIBRARIES = libtdm-drm.la
-libtdm_drm_ladir = $(TDM_MODULE_PATH)
-libtdm_drm_la_LDFLAGS = -module -avoid-version
-libtdm_drm_la_LIBADD = $(TDM_DRM_LIBS) -ldl
-
-libtdm_drm_la_SOURCES = \
-	tdm_drm_hwc_window.c \
-	tdm_drm_hwc.c \
-	tdm_drm_format.c \
-	tdm_drm_pp.c \
-	tdm_drm_display.c \
-	tdm_drm.c
diff --git a/src/libtdm-drm/tdm_drm.c b/src/libtdm-drm/tdm_drm.c
deleted file mode 100644
index 2d4bf3a..0000000
--- a/src/libtdm-drm/tdm_drm.c
+++ /dev/null
@@ -1,492 +0,0 @@
-/**************************************************************************
-
-libtdm_drm
-
-Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
-
-Contact: SooChan Lim <sc1.lim@samsung.com>
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sub license, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice (including the
-next paragraph) shall be included in all copies or substantial portions
-of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
-IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
-ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-**************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#if HAVE_UDEV
-#include <libudev.h>
-#endif
-
-#include "tdm_drm.h"
-#include <tdm_helper.h>
-#include <tbm_drm_helper.h>
-
-#define ENABLE_PP
-
-#define TDM_DRM_NAME "vigs"
-
-#define TDM_HWC 1
-
-static tdm_drm_data *drm_data;
-
-#ifdef HAVE_UDEV
-static struct udev_device *
-_tdm_find_primary_gpu(void)
-{
-	struct udev *udev;
-	struct udev_enumerate *e;
-	struct udev_list_entry *entry;
-	const char *path, *id;
-	struct udev_device *device, *drm_device, *pci;
-
-	udev = udev_new();
-	if (!udev) {
-		TDM_ERR("fail to initialize udev context\n");
-		return NULL;
-	}
-
-	e = udev_enumerate_new(udev);
-	udev_enumerate_add_match_subsystem(e, "drm");
-	udev_enumerate_add_match_sysname(e, "card[0-9]*");
-
-	udev_enumerate_scan_devices(e);
-	drm_device = NULL;
-	udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) {
-		path = udev_list_entry_get_name(entry);
-		device = udev_device_new_from_syspath(udev, path);
-		if (!device)
-			continue;
-
-		pci = udev_device_get_parent_with_subsystem_devtype(device,
-						"pci", NULL);
-		if (pci) {
-			id = udev_device_get_sysattr_value(pci, "boot_vga");
-			if (id && !strcmp(id, "1")) {
-				if (drm_device)
-					udev_device_unref(drm_device);
-				drm_device = device;
-				break;
-			}
-		}
-
-		if (!drm_device)
-			drm_device = device;
-		else
-			udev_device_unref(device);
-	}
-
-	udev_enumerate_unref(e);
-	return drm_device;
-}
-
-static tdm_error
-_tdm_drm_udev_fd_handler(int fd, tdm_event_loop_mask mask, void *user_data)
-{
-	tdm_drm_data *edata = (tdm_drm_data*)user_data;
-	struct udev_device *dev;
-	const char *hotplug;
-	struct stat s;
-	dev_t udev_devnum;
-	int ret;
-
-	dev = udev_monitor_receive_device(edata->uevent_monitor);
-	if (!dev) {
-		TDM_ERR("couldn't receive device");
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	udev_devnum = udev_device_get_devnum(dev);
-
-	ret = fstat(edata->drm_fd, &s);
-	if (ret == -1) {
-		TDM_ERR("fstat failed");
-		udev_device_unref(dev);
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	hotplug = udev_device_get_property_value(dev, "HOTPLUG");
-
-	if (memcmp(&s.st_rdev, &udev_devnum, sizeof(dev_t)) == 0 &&
-			hotplug && atoi(hotplug) == 1) {
-		TDM_INFO("HotPlug");
-		tdm_drm_display_update_output_status(edata);
-	}
-
-	udev_device_unref(dev);
-
-	return TDM_ERROR_NONE;
-}
-
-static void
-_tdm_drm_udev_init(tdm_drm_data *edata)
-{
-	struct udev *u = NULL;
-	struct udev_monitor *mon = NULL;
-
-	u = udev_new();
-	if (!u) {
-		TDM_ERR("couldn't create udev");
-		goto failed;
-	}
-
-	mon = udev_monitor_new_from_netlink(u, "udev");
-	if (!mon) {
-		TDM_ERR("couldn't create udev monitor");
-		goto failed;
-	}
-
-	if (udev_monitor_filter_add_match_subsystem_devtype(mon, "drm", "drm_minor") > 0 ||
-		udev_monitor_enable_receiving(mon) < 0) {
-		TDM_ERR("add match subsystem failed");
-		goto failed;
-	}
-
-	edata->uevent_source =
-		tdm_event_loop_add_fd_handler(edata->dpy, udev_monitor_get_fd(mon),
-									  TDM_EVENT_LOOP_READABLE,
-									  _tdm_drm_udev_fd_handler,
-									  edata, NULL);
-	if (!edata->uevent_source) {
-		TDM_ERR("couldn't create udev event source");
-		goto failed;
-	}
-
-	edata->uevent_monitor = mon;
-
-	TDM_INFO("hotplug monitor created");
-
-	return;
-failed:
-	if (mon)
-		udev_monitor_unref(mon);
-	if (u)
-		udev_unref(u);
-}
-
-static void
-_tdm_drm_udev_deinit(tdm_drm_data *edata)
-{
-	if (edata->uevent_source) {
-		tdm_event_loop_source_remove(edata->uevent_source);
-		edata->uevent_source = NULL;
-	}
-
-	if (edata->uevent_monitor) {
-		struct udev *u = udev_monitor_get_udev(edata->uevent_monitor);
-		udev_monitor_unref(edata->uevent_monitor);
-		udev_unref(u);
-		edata->uevent_monitor = NULL;
-		TDM_INFO("hotplug monitor destroyed");
-	}
-}
-#endif
-
-static int
-_tdm_drm_open_drm(void)
-{
-	int fd = -1;
-
-	fd = drmOpen(TDM_DRM_NAME, NULL);
-	if (fd < 0)
-		TDM_WRN("Cannot open '%s' drm", TDM_DRM_NAME);
-
-#ifdef HAVE_UDEV
-	if (fd < 0) {
-		struct udev_device *drm_device = NULL;
-		const char *filename;
-		TDM_WRN("Cannot open drm device.. search by udev");
-
-		drm_device = _tdm_find_primary_gpu();
-		if (drm_device == NULL) {
-			TDM_ERR("fail to find drm device\n");
-			goto close_l;
-		}
-
-		filename = udev_device_get_devnode(drm_device);
-
-		fd = open(filename, O_RDWR | O_CLOEXEC);
-		if (fd < 0)
-			TDM_ERR("Cannot open drm device(%s)\n", filename);
-
-		TDM_DBG("open drm device (name:%s, fd:%d)", filename, fd);
-
-		udev_device_unref(drm_device);
-	}
-close_l:
-#endif
-	return fd;
-}
-
-void
-tdm_drm_deinit(tdm_backend_data *bdata)
-{
-	if (drm_data != bdata)
-		return;
-
-	TDM_INFO("deinit");
-
-#ifdef HAVE_UDEV
-	_tdm_drm_udev_deinit(drm_data);
-#endif
-
-	tdm_drm_display_destroy_output_list(drm_data);
-
-	if (drm_data->plane_res)
-		drmModeFreePlaneResources(drm_data->plane_res);
-	if (drm_data->mode_res)
-		drmModeFreeResources(drm_data->mode_res);
-	if (drm_data->drm_fd >= 0)
-		close(drm_data->drm_fd);
-
-	free(drm_data);
-	drm_data = NULL;
-}
-
-tdm_backend_data *
-tdm_drm_init(tdm_display *dpy, tdm_error *error)
-{
-	tdm_func_display drm_func_display;
-	tdm_func_output drm_func_output;
-	tdm_func_layer drm_func_layer;
-	tdm_func_hwc drm_func_hwc;
-	tdm_func_hwc_window drm_func_hwc_window;
-#ifdef ENABLE_PP
-	tdm_func_pp drm_func_pp;
-#endif
-	tdm_error ret;
-
-	if (!dpy) {
-		TDM_ERR("display is null");
-		if (error)
-			*error = TDM_ERROR_INVALID_PARAMETER;
-		return NULL;
-	}
-
-	if (drm_data) {
-		TDM_ERR("failed: init twice");
-		if (error)
-			*error = TDM_ERROR_BAD_REQUEST;
-		return NULL;
-	}
-
-	drm_data = calloc(1, sizeof(tdm_drm_data));
-	if (!drm_data) {
-		TDM_ERR("alloc failed");
-		if (error)
-			*error = TDM_ERROR_OUT_OF_MEMORY;
-		return NULL;
-	}
-
-#if TDM_HWC
-	/* enable the tdm_hwc */
-	drm_data->hwc_mode = 1;
-#endif
-
-	LIST_INITHEAD(&drm_data->output_list);
-	LIST_INITHEAD(&drm_data->buffer_list);
-
-	memset(&drm_func_display, 0, sizeof(drm_func_display));
-	drm_func_display.display_get_capability = drm_display_get_capability;
-	drm_func_display.display_get_pp_capability = drm_display_get_pp_capability;
-	drm_func_display.display_get_outputs = drm_display_get_outputs;
-	drm_func_display.display_get_fd = drm_display_get_fd;
-	drm_func_display.display_handle_events = drm_display_handle_events;
-	drm_func_display.display_create_pp = drm_display_create_pp;
-
-	memset(&drm_func_output, 0, sizeof(drm_func_output));
-	drm_func_output.output_get_capability = drm_output_get_capability;
-	drm_func_output.output_get_layers = drm_output_get_layers;
-	drm_func_output.output_set_property = drm_output_set_property;
-	drm_func_output.output_get_property = drm_output_get_property;
-	drm_func_output.output_wait_vblank = drm_output_wait_vblank;
-	drm_func_output.output_set_vblank_handler = drm_output_set_vblank_handler;
-	drm_func_output.output_commit = drm_output_commit;
-	drm_func_output.output_set_commit_handler = drm_output_set_commit_handler;
-	drm_func_output.output_set_dpms = drm_output_set_dpms;
-	drm_func_output.output_get_dpms = drm_output_get_dpms;
-	drm_func_output.output_set_mode = drm_output_set_mode;
-	drm_func_output.output_get_mode = drm_output_get_mode;
-#ifdef HAVE_UDEV
-	drm_func_output.output_set_status_handler = drm_output_set_status_handler;
-#endif
-
-	if (drm_data->hwc_mode) {
-		drm_func_output.output_get_hwc = drm_output_get_hwc;
-
-		memset(&drm_func_hwc, 0, sizeof(drm_func_hwc));
-		drm_func_hwc.hwc_create_window = drm_hwc_create_window;
-		drm_func_hwc.hwc_get_video_supported_formats = drm_hwc_get_video_supported_formats;
-		drm_func_hwc.hwc_get_video_available_properties = NULL;
-		drm_func_hwc.hwc_get_capabilities = drm_hwc_get_capabilities;
-		drm_func_hwc.hwc_get_available_properties = drm_hwc_get_available_properties;
-		drm_func_hwc.hwc_get_client_target_buffer_queue = drm_hwc_get_client_target_buffer_queue;
-		drm_func_hwc.hwc_set_client_target_buffer = drm_hwc_set_client_target_buffer;
-		drm_func_hwc.hwc_validate = drm_hwc_validate;
-		drm_func_hwc.hwc_get_changed_composition_types = drm_hwc_get_changed_composition_types;
-		drm_func_hwc.hwc_accept_validation = drm_hwc_accept_validation;
-		drm_func_hwc.hwc_commit = drm_hwc_commit;
-		drm_func_hwc.hwc_set_commit_handler = drm_hwc_set_commit_handler;
-
-		memset(&drm_func_hwc_window, 0, sizeof(drm_func_hwc_window));
-		drm_func_hwc_window.hwc_window_destroy = drm_hwc_window_destroy;
-		drm_func_hwc_window.hwc_window_acquire_buffer_queue = NULL; // no need
-		drm_func_hwc_window.hwc_window_release_buffer_queue = NULL; // no need
-		drm_func_hwc_window.hwc_window_set_composition_type = drm_hwc_window_set_composition_type;
-		drm_func_hwc_window.hwc_window_set_buffer_damage = drm_hwc_window_set_buffer_damage;
-		drm_func_hwc_window.hwc_window_set_info = drm_hwc_window_set_info;
-		drm_func_hwc_window.hwc_window_set_buffer = drm_hwc_window_set_buffer;
-		drm_func_hwc_window.hwc_window_set_property = drm_hwc_window_set_property;
-		drm_func_hwc_window.hwc_window_get_property = drm_hwc_window_get_property;
-		drm_func_hwc_window.hwc_window_get_constraints = drm_hwc_window_get_constraints;
-		drm_func_hwc_window.hwc_window_set_name = drm_hwc_window_set_name;
-		drm_func_hwc_window.hwc_window_set_cursor_image = drm_hwc_window_set_cursor_image;
-	}
-
-	memset(&drm_func_layer, 0, sizeof(drm_func_layer));
-	drm_func_layer.layer_get_capability = drm_layer_get_capability;
-	drm_func_layer.layer_set_property = drm_layer_set_property;
-	drm_func_layer.layer_get_property = drm_layer_get_property;
-	drm_func_layer.layer_set_info = drm_layer_set_info;
-	drm_func_layer.layer_get_info = drm_layer_get_info;
-	drm_func_layer.layer_set_buffer = drm_layer_set_buffer;
-	drm_func_layer.layer_unset_buffer = drm_layer_unset_buffer;
-
-#ifdef ENABLE_PP
-	memset(&drm_func_pp, 0, sizeof(drm_func_pp));
-	drm_func_pp.pp_destroy = drm_pp_destroy;
-	drm_func_pp.pp_set_info = drm_pp_set_info;
-	drm_func_pp.pp_attach = drm_pp_attach;
-	drm_func_pp.pp_commit = drm_pp_commit;
-	drm_func_pp.pp_set_done_handler = drm_pp_set_done_handler;
-#endif
-
-	ret = tdm_backend_register_func_display(dpy, &drm_func_display);
-	if (ret != TDM_ERROR_NONE)
-		goto failed;
-
-	ret = tdm_backend_register_func_output(dpy, &drm_func_output);
-	if (ret != TDM_ERROR_NONE)
-		goto failed;
-
-	ret = tdm_backend_register_func_layer(dpy, &drm_func_layer);
-	if (ret != TDM_ERROR_NONE)
-		goto failed;
-
-	if (drm_data->hwc_mode) {
-		ret = tdm_backend_register_func_hwc(dpy, &drm_func_hwc);
-		if (ret != TDM_ERROR_NONE)
-			goto failed;
-
-		ret = tdm_backend_register_func_hwc_window(dpy, &drm_func_hwc_window);
-		if (ret != TDM_ERROR_NONE)
-			goto failed;
-	}
-
-#ifdef ENABLE_PP
-	ret = tdm_backend_register_func_pp(dpy, &drm_func_pp);
-	if (ret != TDM_ERROR_NONE)
-		goto failed;
-#endif
-
-	drm_data->dpy = dpy;
-
-	/* The drm master fd can be opened by a tbm backend module in
-	 * tbm_bufmgr_init() time. In this case, we just get it from tbm.
-	 */
-	drm_data->drm_fd = tbm_drm_helper_get_master_fd();
-	if (drm_data->drm_fd < 0) {
-		drm_data->drm_fd = _tdm_drm_open_drm();
-
-		if (drm_data->drm_fd < 0) {
-			ret = TDM_ERROR_OPERATION_FAILED;
-			goto failed;
-		}
-
-		tbm_drm_helper_set_tbm_master_fd(drm_data->drm_fd);
-	}
-
-	TDM_INFO("master fd: %d", drm_data->drm_fd);
-
-#ifdef HAVE_UDEV
-	_tdm_drm_udev_init(drm_data);
-#endif
-
-#if LIBDRM_MAJOR_VERSION >= 2 && LIBDRM_MINOR_VERSION >= 4  && LIBDRM_MICRO_VERSION >= 47
-	if (drmSetClientCap(drm_data->drm_fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1) < 0) {
-		TDM_WRN("Set DRM_CLIENT_CAP_UNIVERSAL_PLANES failed");
-	} else {
-		TDM_INFO("has universal planes");
-		drm_data->has_universal_plane = 1;
-	}
-#endif
-
-	drm_data->mode_res = drmModeGetResources(drm_data->drm_fd);
-	if (!drm_data->mode_res) {
-		TDM_ERR("no drm resource: %m");
-		ret = TDM_ERROR_OPERATION_FAILED;
-		goto failed;
-	}
-
-	drm_data->plane_res = drmModeGetPlaneResources(drm_data->drm_fd);
-	if (!drm_data->plane_res) {
-		TDM_ERR("no drm plane resource: %m");
-		ret = TDM_ERROR_OPERATION_FAILED;
-		goto failed;
-	}
-
-	if (drm_data->plane_res->count_planes <= 0) {
-		TDM_ERR("no drm plane resource");
-		ret = TDM_ERROR_OPERATION_FAILED;
-		goto failed;
-	}
-
-	ret = tdm_drm_display_create_output_list(drm_data);
-	if (ret != TDM_ERROR_NONE)
-		goto failed;
-
-	ret = tdm_drm_display_create_layer_list(drm_data);
-	if (ret != TDM_ERROR_NONE)
-		goto failed;
-
-	if (error)
-		*error = TDM_ERROR_NONE;
-
-	TDM_INFO("init success!");
-
-	return (tdm_backend_data *)drm_data;
-failed:
-	if (error)
-		*error = ret;
-
-	tdm_drm_deinit(drm_data);
-
-	TDM_ERR("init failed!");
-	return NULL;
-}
-
-tdm_backend_module tdm_backend_module_data = {
-	"drm",
-	"Samsung",
-	TDM_BACKEND_SET_ABI_VERSION(1, 1),
-	tdm_drm_init,
-	tdm_drm_deinit
-};
diff --git a/src/libtdm-drm/tdm_drm.h b/src/libtdm-drm/tdm_drm.h
deleted file mode 100644
index 5a0aec9..0000000
--- a/src/libtdm-drm/tdm_drm.h
+++ /dev/null
@@ -1,133 +0,0 @@
-/**************************************************************************
-
-libtdm_drm
-
-Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
-
-Contact: SooChan Lim <sc1.lim@samsung.com>
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sub license, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice (including the
-next paragraph) shall be included in all copies or substantial portions
-of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
-IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
-ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-**************************************************************************/
-
-#ifndef _TDM_DRM_H_
-#define _TDM_DRM_H_
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <pthread.h>
-#include <errno.h>
-#include <unistd.h>
-#include <limits.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <fcntl.h>
-
-#include <xf86drm.h>
-#include <xf86drmMode.h>
-#include <tbm_surface.h>
-#include <tbm_surface_internal.h>
-#include <tdm_backend.h>
-#include <tdm_log.h>
-#include <tdm_list.h>
-#include "tdm_drm_types.h"
-#include "tdm_drm_hwc.h"
-#include "tdm_drm_hwc_window.h"
-
-#if HAVE_UDEV
-#include <libudev.h>
-#endif
-
-/* drm backend functions (display) */
-tdm_error	drm_display_get_capability(tdm_backend_data *bdata, tdm_caps_display *caps);
-tdm_error	drm_display_get_pp_capability(tdm_backend_data *bdata, tdm_caps_pp *caps);
-tdm_output** drm_display_get_outputs(tdm_backend_data *bdata, int *count, tdm_error *error);
-tdm_error	drm_display_get_fd(tdm_backend_data *bdata, int *fd);
-tdm_error	drm_display_handle_events(tdm_backend_data *bdata);
-tdm_pp*	  drm_display_create_pp(tdm_backend_data *bdata, tdm_error *error);
-tdm_error	drm_output_get_capability(tdm_output *output, tdm_caps_output *caps);
-tdm_layer**  drm_output_get_layers(tdm_output *output, int *count, tdm_error *error);
-tdm_error	drm_output_set_property(tdm_output *output, unsigned int id, tdm_value value);
-tdm_error	drm_output_get_property(tdm_output *output, unsigned int id, tdm_value *value);
-tdm_error	drm_output_wait_vblank(tdm_output *output, int interval, int sync, void *user_data);
-tdm_error	drm_output_set_vblank_handler(tdm_output *output, tdm_output_vblank_handler func);
-tdm_error	drm_output_commit(tdm_output *output, int sync, void *user_data);
-tdm_error	drm_output_set_commit_handler(tdm_output *output, tdm_output_commit_handler func);
-tdm_error	drm_output_set_dpms(tdm_output *output, tdm_output_dpms dpms_value);
-tdm_error	drm_output_get_dpms(tdm_output *output, tdm_output_dpms *dpms_value);
-tdm_error	drm_output_set_mode(tdm_output *output, const tdm_output_mode *mode);
-tdm_error	drm_output_get_mode(tdm_output *output, const tdm_output_mode **mode);
-tdm_error	drm_output_set_status_handler(tdm_output *output, tdm_output_status_handler func, void *user_data);
-tdm_hwc     *drm_output_get_hwc(tdm_output *output, tdm_error *error);
-
-tdm_hwc_window      *drm_hwc_create_window(tdm_hwc *hwc, tdm_error *error);
-tdm_error            drm_hwc_get_video_supported_formats(tdm_hwc *hwc, const tbm_format **formats, int *count);
-tdm_error            drm_hwc_get_capabilities(tdm_hwc *hwc, tdm_hwc_capability *capabilities);
-tdm_error            drm_hwc_get_available_properties(tdm_hwc *hwc, const tdm_prop **props, int *count);
-tbm_surface_queue_h  drm_hwc_get_client_target_buffer_queue(tdm_hwc *hwc, tdm_error *error);
-tdm_error            drm_hwc_set_client_target_buffer(tdm_hwc *hwc, tbm_surface_h buffer, tdm_region damage);
-tdm_error            drm_hwc_validate(tdm_hwc *hwc, tdm_hwc_window **composited_wnds, uint32_t num_wnds, uint32_t *num_types);
-tdm_error            drm_hwc_get_changed_composition_types(tdm_hwc *hwc, uint32_t *num_elements, tdm_hwc_window **hwc_wnds, tdm_hwc_window_composition *composition_types);
-tdm_error            drm_hwc_accept_validation(tdm_hwc *hwc);
-tdm_error            drm_hwc_commit(tdm_hwc *hwc, int sync, void *user_data);
-tdm_error            drm_hwc_set_commit_handler(tdm_hwc *hwc, tdm_hwc_commit_handler func);
-
-void           drm_hwc_window_destroy(tdm_hwc_window *hwc_window);
-tdm_error      drm_hwc_window_set_composition_type(tdm_hwc_window *hwc_window, tdm_hwc_window_composition composition_type);
-tdm_error      drm_hwc_window_set_buffer_damage(tdm_hwc_window *hwc_window, tdm_region damage);
-tdm_error      drm_hwc_window_set_info(tdm_hwc_window *hwc_window, tdm_hwc_window_info *info);
-tdm_error      drm_hwc_window_set_buffer(tdm_hwc_window *hwc_window, tbm_surface_h surface);
-tdm_error      drm_hwc_window_set_property(tdm_hwc_window *hwc_window, unsigned int id, tdm_value value);
-tdm_error      drm_hwc_window_get_property(tdm_hwc_window *hwc_window, unsigned int id, tdm_value *value);
-tdm_error      drm_hwc_window_get_constraints(tdm_hwc_window *hwc_window, int *constraints);
-tdm_error      drm_hwc_window_set_name(tdm_hwc_window *hwc_window, const char *name);
-tdm_error      drm_hwc_window_set_cursor_image(tdm_hwc_window *hwc_window, int width, int height, int stride, void *ptr);
-
-tdm_error	drm_layer_get_capability(tdm_layer *layer, tdm_caps_layer *caps);
-tdm_error	drm_layer_set_property(tdm_layer *layer, unsigned int id, tdm_value value);
-tdm_error	drm_layer_get_property(tdm_layer *layer, unsigned int id, tdm_value *value);
-tdm_error	drm_layer_set_info(tdm_layer *layer, tdm_info_layer *info);
-tdm_error	drm_layer_get_info(tdm_layer *layer, tdm_info_layer *info);
-tdm_error	drm_layer_set_buffer(tdm_layer *layer, tbm_surface_h buffer);
-tdm_error	drm_layer_unset_buffer(tdm_layer *layer);
-void		 drm_pp_destroy(tdm_pp *pp);
-tdm_error	drm_pp_set_info(tdm_pp *pp, tdm_info_pp *info);
-tdm_error	drm_pp_attach(tdm_pp *pp, tbm_surface_h src, tbm_surface_h dst);
-tdm_error	drm_pp_commit(tdm_pp *pp);
-tdm_error	drm_pp_set_done_handler(tdm_pp *pp, tdm_pp_done_handler func, void *user_data);
-
-uint32_t	tdm_drm_format_to_drm_format(tbm_format format);
-tbm_format  tdm_drm_format_to_tbm_format(uint32_t format);
-
-void		tdm_drm_display_update_output_status(tdm_drm_data *drm_data);
-tdm_error	tdm_drm_display_create_output_list(tdm_drm_data *drm_data);
-void		tdm_drm_display_destroy_output_list(tdm_drm_data *drm_data);
-tdm_error	tdm_drm_display_create_layer_list(tdm_drm_data *drm_data);
-
-tdm_drm_layer_data * drm_output_data_get_layer_data(tdm_drm_output_data *output_data, int layer_zops);
-
-#endif /* _TDM_DRM_H_ */
diff --git a/src/libtdm-drm/tdm_drm_display.c b/src/libtdm-drm/tdm_drm_display.c
deleted file mode 100644
index ea9a3cc..0000000
--- a/src/libtdm-drm/tdm_drm_display.c
+++ /dev/null
@@ -1,1869 +0,0 @@
-/**************************************************************************
-
-libtdm_drm
-
-Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
-
-Contact: SooChan Lim <sc1.lim@samsung.com>
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sub license, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice (including the
-next paragraph) shall be included in all copies or substantial portions
-of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
-IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
-ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-**************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <drm_fourcc.h>
-#include <tdm_helper.h>
-
-#include "tdm_drm.h"
-#include "tdm_drm_pp.h"
-
-static drmModeModeInfoPtr
-_tdm_drm_display_get_mode(tdm_drm_output_data *output_data)
-{
-	int i;
-
-	if (!output_data->current_mode) {
-		TDM_ERR("no output_data->current_mode");
-		return NULL;
-	}
-
-	for (i = 0; i < output_data->count_modes; i++) {
-		drmModeModeInfoPtr drm_mode = &output_data->drm_modes[i];
-		if ((drm_mode->hdisplay == output_data->current_mode->hdisplay) &&
-			(drm_mode->vdisplay == output_data->current_mode->vdisplay) &&
-			(drm_mode->vrefresh == output_data->current_mode->vrefresh) &&
-			(drm_mode->flags == output_data->current_mode->flags) &&
-			(drm_mode->type == output_data->current_mode->type) &&
-			!(strncmp(drm_mode->name, output_data->current_mode->name, TDM_NAME_LEN)))
-			return drm_mode;
-	}
-
-	return NULL;
-}
-
-static void
-_tdm_drm_display_to_tdm_mode(drmModeModeInfoPtr drm_mode,
-							 tdm_output_mode *tdm_mode)
-{
-	tdm_mode->clock = drm_mode->clock;
-	tdm_mode->hdisplay = drm_mode->hdisplay;
-	tdm_mode->hsync_start = drm_mode->hsync_start;
-	tdm_mode->hsync_end = drm_mode->hsync_end;
-	tdm_mode->htotal = drm_mode->htotal;
-	tdm_mode->hskew = drm_mode->hskew;
-	tdm_mode->vdisplay = drm_mode->vdisplay;
-	tdm_mode->vsync_start = drm_mode->vsync_start;
-	tdm_mode->vsync_end = drm_mode->vsync_end;
-	tdm_mode->vtotal = drm_mode->vtotal;
-	tdm_mode->vscan = drm_mode->vscan;
-	tdm_mode->vrefresh = drm_mode->vrefresh;
-	tdm_mode->flags = drm_mode->flags;
-	tdm_mode->type = drm_mode->type;
-	snprintf(tdm_mode->name, TDM_NAME_LEN, "%s", drm_mode->name);
-}
-
-static tdm_error
-_tdm_drm_display_get_cur_msc(int fd, int pipe, uint *msc)
-{
-	drmVBlank vbl;
-
-	vbl.request.type = DRM_VBLANK_RELATIVE;
-	if (pipe > 0)
-		vbl.request.type |= DRM_VBLANK_SECONDARY;
-
-	vbl.request.sequence = 0;
-	if (drmWaitVBlank(fd, &vbl)) {
-		TDM_ERR("get vblank counter failed: %m");
-		*msc = 0;
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	*msc = vbl.reply.sequence;
-
-	return TDM_ERROR_NONE;
-}
-
-static tdm_error
-_tdm_drm_display_wait_vblank(int fd, int pipe, uint *target_msc, void *data)
-{
-	drmVBlank vbl;
-
-	vbl.request.type =  DRM_VBLANK_ABSOLUTE | DRM_VBLANK_EVENT;
-	if (pipe > 0)
-		vbl.request.type |= DRM_VBLANK_SECONDARY;
-
-	vbl.request.sequence = *target_msc;
-	vbl.request.signal = (unsigned long)(uintptr_t)data;
-
-	if (drmWaitVBlank(fd, &vbl)) {
-		*target_msc = 0;
-		TDM_ERR("wait vblank failed: %m");
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	*target_msc = vbl.reply.sequence;
-
-	return TDM_ERROR_NONE;
-}
-
-static tdm_error
-_tdm_drm_output_update_status(tdm_drm_output_data *output_data,
-							  tdm_output_conn_status status)
-{
-	RETURN_VAL_IF_FAIL(output_data, TDM_ERROR_INVALID_PARAMETER);
-
-	if (output_data->status == status)
-		return TDM_ERROR_NONE;
-
-	output_data->status = status;
-
-	if (output_data->status_func)
-		output_data->status_func(output_data, status,
-								 output_data->status_user_data);
-
-	return TDM_ERROR_NONE;
-}
-
-static tdm_error
-_tdm_drm_display_commit_primary_layer(tdm_drm_layer_data *layer_data,
-									  void *user_data, int *do_waitvblank)
-{
-	tdm_drm_data *drm_data = layer_data->drm_data;
-	tdm_drm_output_data *output_data = layer_data->output_data;
-
-	if (output_data->mode_changed && layer_data->display_buffer_changed) {
-		drmModeModeInfoPtr mode;
-
-		if (!layer_data->display_buffer) {
-			TDM_ERR("primary layer should have a buffer for modestting");
-			return TDM_ERROR_BAD_REQUEST;
-		}
-
-		output_data->mode_changed = 0;
-		layer_data->display_buffer_changed = 0;
-		layer_data->info_changed = 0;
-
-		mode = _tdm_drm_display_get_mode(output_data);
-		if (!mode) {
-			TDM_ERR("couldn't find proper mode");
-			return TDM_ERROR_BAD_REQUEST;
-		}
-
-		if (drmModeSetCrtc(drm_data->drm_fd, output_data->crtc_id,
-						   layer_data->display_buffer->fb_id, 0, 0,
-						   &output_data->connector_id, 1, mode)) {
-			TDM_ERR("set crtc failed: %m");
-			return TDM_ERROR_OPERATION_FAILED;
-		}
-
-		_tdm_drm_output_update_status(output_data, TDM_OUTPUT_CONN_STATUS_MODE_SETTED);
-
-		*do_waitvblank = 1;
-		return TDM_ERROR_NONE;
-	} else if (layer_data->display_buffer_changed) {
-		layer_data->display_buffer_changed = 0;
-
-		if (!layer_data->display_buffer) {
-			if (drmModeSetCrtc(drm_data->drm_fd, output_data->crtc_id,
-							   0, 0, 0, NULL, 0, NULL)) {
-				TDM_ERR("unset crtc failed: %m");
-				return TDM_ERROR_OPERATION_FAILED;
-			}
-
-			if (output_data->status == TDM_OUTPUT_CONN_STATUS_MODE_SETTED)
-				_tdm_drm_output_update_status(output_data, TDM_OUTPUT_CONN_STATUS_CONNECTED);
-
-			*do_waitvblank = 1;
-		} else {
-			tdm_drm_event_data *event_data = calloc(1, sizeof(tdm_drm_event_data));
-
-			if (!event_data) {
-				TDM_ERR("alloc failed");
-				return TDM_ERROR_OUT_OF_MEMORY;
-			}
-
-			event_data->type = TDM_DRM_EVENT_TYPE_PAGEFLIP;
-			event_data->output_data = output_data;
-			event_data->user_data = user_data;
-			if (drmModePageFlip(drm_data->drm_fd, output_data->crtc_id,
-								layer_data->display_buffer->fb_id, DRM_MODE_PAGE_FLIP_EVENT, event_data)) {
-				TDM_ERR("pageflip failed: %m");
-				free(event_data);
-				return TDM_ERROR_OPERATION_FAILED;
-			}
-			*do_waitvblank = 0;
-		}
-	}
-
-	return TDM_ERROR_NONE;
-}
-
-static tdm_error
-_tdm_drm_display_commit_layer(tdm_drm_layer_data *layer_data)
-{
-	tdm_drm_data *drm_data = layer_data->drm_data;
-	tdm_drm_output_data *output_data = layer_data->output_data;
-	uint32_t fx, fy, fw, fh;
-	int crtc_w;
-
-	if (!layer_data->display_buffer_changed && !layer_data->info_changed)
-		return TDM_ERROR_NONE;
-
-	if (output_data->current_mode)
-		crtc_w = output_data->current_mode->hdisplay;
-	else {
-		drmModeCrtcPtr crtc = drmModeGetCrtc(drm_data->drm_fd, output_data->crtc_id);
-		if (!crtc) {
-			TDM_ERR("getting crtc failed");
-			return TDM_ERROR_OPERATION_FAILED;
-		}
-		crtc_w = crtc->width;
-		if (crtc_w == 0) {
-			TDM_ERR("getting crtc width failed");
-			drmModeFreeCrtc(crtc);
-			return TDM_ERROR_OPERATION_FAILED;
-		}
-		drmModeFreeCrtc(crtc);
-	}
-
-	layer_data->display_buffer_changed = 0;
-	layer_data->info_changed = 0;
-
-	if (!layer_data->display_buffer) {
-		if (drmModeSetPlane(drm_data->drm_fd, layer_data->plane_id,
-							output_data->crtc_id, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0))
-			TDM_ERR("unset plane(%d) filed: %m", layer_data->plane_id);
-
-		return TDM_ERROR_NONE;
-	}
-
-	/* Source values are 16.16 fixed point */
-	fx = ((unsigned int)layer_data->info.src_config.pos.x) << 16;
-	fy = ((unsigned int)layer_data->info.src_config.pos.y) << 16;
-	fw = ((unsigned int)layer_data->info.src_config.pos.w) << 16;
-	fh = ((unsigned int)layer_data->info.src_config.pos.h) << 16;
-
-	if (drmModeSetPlane(drm_data->drm_fd, layer_data->plane_id,
-						output_data->crtc_id, layer_data->display_buffer->fb_id, 0,
-						layer_data->info.dst_pos.x, layer_data->info.dst_pos.y,
-						layer_data->info.dst_pos.w, layer_data->info.dst_pos.h,
-						fx, fy, fw, fh) < 0) {
-		TDM_ERR("set plane(%d) failed: %m", layer_data->plane_id);
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	TDM_INFO("plane(%d) crtc(%d) pos(%d) on: fb(%d,[%d,%d %dx%d]=>[%d,%d %dx%d])\n",
-			layer_data->plane_id, output_data->crtc_id, layer_data->zpos,
-			layer_data->display_buffer->fb_id,
-			layer_data->info.src_config.pos.x, layer_data->info.src_config.pos.y,
-			layer_data->info.src_config.pos.w, layer_data->info.src_config.pos.h,
-			layer_data->info.dst_pos.x, layer_data->info.dst_pos.y,
-			layer_data->info.dst_pos.w, layer_data->info.dst_pos.h);
-
-	return TDM_ERROR_NONE;
-}
-
-static void
-_tdm_drm_display_cb_event(int fd, unsigned int sequence,
-						  unsigned int tv_sec, unsigned int tv_usec,
-						  void *user_data)
-{
-	tdm_drm_event_data *event_data = user_data;
-	tdm_drm_output_data *output_data;
-	tdm_drm_hwc_data *hwc_data;
-
-	if (!event_data) {
-		TDM_ERR("no event data");
-		return;
-	}
-
-	output_data = event_data->output_data;
-
-	switch (event_data->type) {
-	case TDM_DRM_EVENT_TYPE_PAGEFLIP:
-	    if (output_data->hwc_enable) {
-			hwc_data = output_data->hwc_data;
-			if (!hwc_data) {
-				TDM_ERR("no hwc_data");
-				break;
-			}
-
-			if (hwc_data->commit_func)
-				hwc_data->commit_func(hwc_data, sequence,
-										 tv_sec, tv_usec,
-										 event_data->user_data);
-		} else {
-			if (output_data->commit_func)
-				output_data->commit_func(output_data, sequence, tv_sec, tv_usec,
-										 event_data->user_data);
-		}
-		break;
-	case TDM_DRM_EVENT_TYPE_WAIT:
-		if (output_data->vblank_func)
-			output_data->vblank_func(output_data, sequence, tv_sec, tv_usec,
-									 event_data->user_data);
-		break;
-	case TDM_DRM_EVENT_TYPE_COMMIT:
-		if (output_data->hwc_enable) {
-			hwc_data = output_data->hwc_data;
-			if (!hwc_data) {
-				TDM_ERR("no hwc_data");
-				break;
-			}
-
-			if (hwc_data->commit_func)
-				hwc_data->commit_func(hwc_data, sequence,
-										 tv_sec, tv_usec,
-										 event_data->user_data);
-		} else {
-			if (output_data->commit_func)
-				output_data->commit_func(output_data, sequence,
-										 tv_sec, tv_usec,
-										 event_data->user_data);
-		}
-		break;
-	default:
-		break;
-	}
-
-	free(event_data);
-}
-
-static tdm_error
-_tdm_drm_display_create_layer_list(tdm_drm_data *drm_data)
-{
-	tdm_drm_output_data *output_data = NULL;
-	int i;
-
-	if (LIST_IS_EMPTY(&drm_data->output_list)) {
-		TDM_ERR("no output");
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	/* The TDM drm backend only support one output. */
-	LIST_FOR_EACH_ENTRY(output_data, &drm_data->output_list, link) {
-		break;
-	}
-
-	if (drm_data->plane_res->count_planes == 0) {
-		TDM_ERR("no layer error");
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	for (i = 0; i < drm_data->plane_res->count_planes; i++) {
-		tdm_drm_layer_data *layer_data;
-		drmModePlanePtr plane;
-
-		plane = drmModeGetPlane(drm_data->drm_fd, drm_data->plane_res->planes[i]);
-		if (!plane) {
-			TDM_ERR("no plane");
-			continue;
-		}
-
-		if ((plane->possible_crtcs & (1 << output_data->pipe)) == 0) {
-			drmModeFreePlane(plane);
-			continue;
-		}
-
-		layer_data = calloc(1, sizeof(tdm_drm_layer_data));
-		if (!layer_data) {
-			TDM_ERR("alloc failed");
-			drmModeFreePlane(plane);
-			continue;
-		}
-
-		layer_data->drm_data = drm_data;
-		layer_data->output_data = output_data;
-		layer_data->plane_id = drm_data->plane_res->planes[i];
-
-		layer_data->capabilities = TDM_LAYER_CAPABILITY_PRIMARY |
-								   TDM_LAYER_CAPABILITY_GRAPHIC;
-		output_data->primary_layer = layer_data;
-
-		TDM_INFO("layer_data(%p) plane_id(%d) crtc_id(%d) capabilities(%x)",
-				 layer_data, layer_data->plane_id, layer_data->output_data->crtc_id,
-				 layer_data->capabilities);
-
-		LIST_ADDTAIL(&layer_data->link, &output_data->layer_list);
-
-		drmModeFreePlane(plane);
-
-		/* can't take care of other planes for various hardware devices */
-		break;
-	}
-
-	return TDM_ERROR_NONE;
-}
-
-#if LIBDRM_MAJOR_VERSION >= 2 && LIBDRM_MINOR_VERSION >= 4  && LIBDRM_MICRO_VERSION >= 47
-
-static tdm_error
-_tdm_drm_display_get_property(tdm_drm_data *drm_data,
-							  unsigned int obj_id, unsigned int obj_type,
-							  const char *name, unsigned int *value,
-							  int *is_immutable)
-{
-	drmModeObjectPropertiesPtr props = NULL;
-	int i;
-
-	props = drmModeObjectGetProperties(drm_data->drm_fd, obj_id, obj_type);
-	if (!props)
-		return TDM_ERROR_OPERATION_FAILED;
-
-	for (i = 0; i < props->count_props; i++) {
-		drmModePropertyPtr prop = drmModeGetProperty(drm_data->drm_fd,
-								  props->props[i]);
-
-		if (!prop)
-			continue;
-
-		if (!strcmp(prop->name, name)) {
-			if (is_immutable)
-				*is_immutable = prop->flags & DRM_MODE_PROP_IMMUTABLE;
-			if (value)
-				*value = (unsigned int)props->prop_values[i];
-			drmModeFreeProperty(prop);
-			drmModeFreeObjectProperties(props);
-			return TDM_ERROR_NONE;
-		}
-
-		drmModeFreeProperty(prop);
-	}
-	drmModeFreeObjectProperties(props);
-	TDM_DBG("coundn't find '%s' property", name);
-	return TDM_ERROR_OPERATION_FAILED;
-}
-
-static tdm_error
-_tdm_drm_display_create_layer_list_type(tdm_drm_data *drm_data)
-{
-	tdm_drm_output_data *output_data = NULL;
-	drmModePlanePtr *planes = NULL;
-	unsigned int *types = NULL;
-	unsigned int type = 0;
-	int plane_cnt, primary_cnt, ovl_cnt, cursor_cnt;
-	int opos_next, cpos_next;
-	tdm_error ret;
-	int i;
-
-	if (LIST_IS_EMPTY(&drm_data->output_list)) {
-		TDM_ERR("no output");
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	/* The TDM drm backend only support one output. */
-	LIST_FOR_EACH_ENTRY(output_data, &drm_data->output_list, link) {
-		break;
-	}
-
-	ret = _tdm_drm_display_get_property(drm_data,
-										drm_data->plane_res->planes[0],
-										DRM_MODE_OBJECT_PLANE, "type", &type,
-										NULL);
-	if (ret != TDM_ERROR_NONE) {
-		TDM_ERR("plane doesn't have 'type' property. Call a fallback function");
-
-		/* if a plane doesn't have "type" property, we call a fallback function
-		 * as default
-		 */
-		return _tdm_drm_display_create_layer_list(drm_data);
-	}
-
-	planes = calloc(drm_data->plane_res->count_planes, sizeof(drmModePlanePtr));
-	if (!planes) {
-		TDM_ERR("alloc failed");
-		goto failed;
-	}
-
-	types = calloc(drm_data->plane_res->count_planes, sizeof(unsigned int));
-	if (!types) {
-		TDM_ERR("alloc failed");
-		goto failed;
-	}
-
-	plane_cnt = 0;
-	for (i = 0; i < drm_data->plane_res->count_planes; i++) {
-		drmModePlanePtr plane;
-
-		plane = drmModeGetPlane(drm_data->drm_fd, drm_data->plane_res->planes[i]);
-		if (!plane) {
-			TDM_ERR("no plane(%d)", drm_data->plane_res->planes[i]);
-			goto failed;
-		}
-
-		if ((plane->possible_crtcs & (1 << output_data->pipe)) == 0) {
-			drmModeFreePlane(plane);
-			continue;
-		}
-
-		ret = _tdm_drm_display_get_property(drm_data,
-											drm_data->plane_res->planes[i],
-											DRM_MODE_OBJECT_PLANE, "type", &type,
-											NULL);
-		if (ret != TDM_ERROR_NONE) {
-			drmModeFreePlane(plane);
-			TDM_ERR("plane(%d) doesn't have 'type' info",
-					drm_data->plane_res->planes[i]);
-			goto failed;
-		}
-
-		/* The TDM drm backend only support a primary layer. */
-		if (type != DRM_PLANE_TYPE_PRIMARY) {
-			TDM_INFO("The TDM drm backend only support a primary layer. plane(%d) type(%d)",
-					 plane->plane_id, type);
-			drmModeFreePlane(plane);
-			continue;
-		}
-
-		planes[plane_cnt] = plane;
-		types[plane_cnt] = type;
-		plane_cnt++;
-	}
-
-	primary_cnt = ovl_cnt = cursor_cnt = 0;
-	for (i = 0; i < plane_cnt; i++) {
-		if (types[i] == DRM_PLANE_TYPE_CURSOR)
-			cursor_cnt++;
-		else if (types[i] == DRM_PLANE_TYPE_OVERLAY)
-			ovl_cnt++;
-		else if (types[i] == DRM_PLANE_TYPE_PRIMARY)
-			primary_cnt++;
-		else
-			TDM_ERR("invalid type(%d)", types[i]);
-	}
-
-	if (primary_cnt != 1) {
-		TDM_ERR("primary layer count(%d) should be one", primary_cnt);
-		goto failed;
-	}
-
-	opos_next = 1;
-	cpos_next = ovl_cnt;
-	for (i = 0; i < plane_cnt; i++) {
-		tdm_drm_layer_data *layer_data;
-
-		layer_data = calloc(1, sizeof(tdm_drm_layer_data));
-		if (!layer_data) {
-			TDM_ERR("alloc failed");
-			goto failed;
-		}
-
-		layer_data->drm_data = drm_data;
-		layer_data->output_data = output_data;
-		layer_data->plane_id = planes[i]->plane_id;
-
-		if (types[i] == DRM_PLANE_TYPE_CURSOR) {
-			layer_data->capabilities = TDM_LAYER_CAPABILITY_CURSOR |
-									   TDM_LAYER_CAPABILITY_GRAPHIC;
-			layer_data->zpos = cpos_next++;
-		} else if (types[i] == DRM_PLANE_TYPE_OVERLAY) {
-			layer_data->capabilities = TDM_LAYER_CAPABILITY_OVERLAY |
-									   TDM_LAYER_CAPABILITY_GRAPHIC;
-			layer_data->zpos = opos_next++;
-		} else if (types[i] == DRM_PLANE_TYPE_PRIMARY) {
-			layer_data->capabilities = TDM_LAYER_CAPABILITY_PRIMARY |
-									   TDM_LAYER_CAPABILITY_GRAPHIC;
-			layer_data->zpos = 0;
-			output_data->primary_layer = layer_data;
-		} else {
-			free(layer_data);
-			continue;
-		}
-
-		TDM_INFO("layer_data(%p) plane_id(%d) crtc_id(%d) zpos(%d) capabilities(%x)",
-				 layer_data, layer_data->plane_id, layer_data->output_data->crtc_id,
-				 layer_data->zpos, layer_data->capabilities);
-
-		LIST_ADDTAIL(&layer_data->link, &output_data->layer_list);
-	}
-
-	for (i = 0; i < plane_cnt; i++)
-		if (planes[i])
-			drmModeFreePlane(planes[i]);
-
-	free(planes);
-	free(types);
-
-	return TDM_ERROR_NONE;
-
-failed:
-	if (planes) {
-		for (i = 0; i < drm_data->plane_res->count_planes; i++)
-			if (planes[i])
-				drmModeFreePlane(planes[i]);
-		free(planes);
-	}
-
-	free(types);
-
-	return TDM_ERROR_OPERATION_FAILED;
-}
-#endif
-
-tdm_error
-tdm_drm_display_create_layer_list(tdm_drm_data *drm_data)
-{
-	tdm_drm_output_data *output_data = NULL;
-	tdm_error ret;
-
-#if LIBDRM_MAJOR_VERSION >= 2 && LIBDRM_MINOR_VERSION >= 4  && LIBDRM_MICRO_VERSION >= 47
-	if (drm_data->has_universal_plane)
-		ret = _tdm_drm_display_create_layer_list_type(drm_data);
-	else
-#endif
-		ret = _tdm_drm_display_create_layer_list(drm_data);
-
-	if (ret != TDM_ERROR_NONE)
-		return ret;
-
-	LIST_FOR_EACH_ENTRY(output_data, &drm_data->output_list, link) {
-		if (!output_data->primary_layer) {
-			TDM_ERR("output(%d) no primary layer", output_data->pipe);
-			return TDM_ERROR_OPERATION_FAILED;
-		}
-	}
-
-	return TDM_ERROR_NONE;
-}
-
-void
-tdm_drm_display_destroy_output_list(tdm_drm_data *drm_data)
-{
-	tdm_drm_output_data *o = NULL, *oo = NULL;
-	tdm_drm_hwc_data *hwc_data = NULL;
-
-	if (LIST_IS_EMPTY(&drm_data->output_list))
-		return;
-
-	LIST_FOR_EACH_ENTRY_SAFE(o, oo, &drm_data->output_list, link) {
-		hwc_data = o->hwc_data;
-		if (hwc_data && hwc_data->target_hwc_window)
-			drm_hwc_window_destroy(hwc_data->target_hwc_window);
-
-		LIST_DEL(&o->link);
-		if (!LIST_IS_EMPTY(&o->layer_list)) {
-			tdm_drm_layer_data *l = NULL, *ll = NULL;
-			LIST_FOR_EACH_ENTRY_SAFE(l, ll, &o->layer_list, link) {
-				LIST_DEL(&l->link);
-				if (l->display_buffer)
-					tbm_surface_internal_unref(l->display_buffer->buffer);
-				free(l);
-			}
-		}
-		free(o->drm_modes);
-		free(o->output_modes);
-		free(o);
-	}
-}
-
-void
-tdm_drm_display_update_output_status(tdm_drm_data *drm_data)
-{
-	tdm_drm_output_data *output_data = NULL;
-
-	if (LIST_IS_EMPTY(&drm_data->output_list))
-		return;
-
-	LIST_FOR_EACH_ENTRY(output_data, &drm_data->output_list, link) {
-		drmModeConnectorPtr connector;
-		tdm_output_conn_status new_status;
-
-		connector = drmModeGetConnector(drm_data->drm_fd,
-										output_data->connector_id);
-		if (!connector) {
-			TDM_ERR("no connector: %d", output_data->connector_id);
-			continue;
-		}
-
-		if (connector->connection == DRM_MODE_CONNECTED)
-			new_status = TDM_OUTPUT_CONN_STATUS_CONNECTED;
-		else
-			new_status = TDM_OUTPUT_CONN_STATUS_DISCONNECTED;
-
-		_tdm_drm_output_update_status(output_data, new_status);
-
-		drmModeFreeConnector(connector);
-	}
-}
-
-tdm_error
-tdm_drm_display_create_output_list(tdm_drm_data *drm_data)
-{
-	tdm_drm_output_data *output_data;
-	int i;
-	tdm_error ret;
-	int allocated = 0;
-	drmModeConnectorPtr connector;
-	drmModeEncoderPtr encoder;
-	int conn_idx = -1;
-	int crtc_id = 0, c, j;
-
-	RETURN_VAL_IF_FAIL(LIST_IS_EMPTY(&drm_data->output_list),
-					   TDM_ERROR_OPERATION_FAILED);
-
-	/* check if there is a connected output */
-	for (i = 0; i < drm_data->mode_res->count_connectors; i++) {
-		connector = drmModeGetConnector(drm_data->drm_fd,
-										drm_data->mode_res->connectors[i]);
-		if (!connector) {
-			TDM_ERR("no connector");
-			return TDM_ERROR_OPERATION_FAILED;
-		}
-
-		/* The TDM drm backend considers only 1 connector because it is the TDM
-		 * reference backend and can't take care of all hardware devices.
-		 * To support various connectors, planes and crtcs, the new TDM backend
-		 * should be implemented.
-		 */
-		if (connector->connection == DRM_MODE_CONNECTED) {
-			conn_idx = i;
-			drmModeFreeConnector(connector);
-			break;
-		}
-		drmModeFreeConnector(connector);
-	}
-
-	/* use the first connecoct_id if there is not connector which is connected */
-	if (conn_idx == -1)
-		conn_idx = 0;
-
-	/* The TDM drm backend considers only 1 connector because it is the TDM
-	 * reference backend and can't take care of all hardware devices.
-	 * To support various connectors, planes and crtcs, the new TDM backend
-	 * should be implemented.
-	 */
-	connector = drmModeGetConnector(drm_data->drm_fd,
-									drm_data->mode_res->connectors[conn_idx]);
-	if (!connector) {
-		TDM_ERR("no connector");
-		ret = TDM_ERROR_OPERATION_FAILED;
-		goto failed_create;
-	}
-
-	if (connector->count_encoders != 1) {
-		TDM_ERR("too many encoders: %d", connector->count_encoders);
-		drmModeFreeConnector(connector);
-		ret = TDM_ERROR_OPERATION_FAILED;
-		goto failed_create;
-	}
-
-	encoder = drmModeGetEncoder(drm_data->drm_fd, connector->encoders[0]);
-	if (!encoder) {
-		TDM_ERR("no encoder");
-		drmModeFreeConnector(connector);
-		ret = TDM_ERROR_OPERATION_FAILED;
-		goto failed_create;
-	}
-
-	for (c = 0; c < drm_data->mode_res->count_crtcs; c++) {
-		if (allocated & (1 << c))
-			continue;
-
-		if ((encoder->possible_crtcs & (1 << c)) == 0)
-			continue;
-
-		crtc_id = drm_data->mode_res->crtcs[c];
-		allocated |= (1 << c);
-		break;
-	}
-
-	if (crtc_id == 0) {
-		TDM_ERR("no possible crtc");
-		drmModeFreeConnector(connector);
-		drmModeFreeEncoder(encoder);
-		ret = TDM_ERROR_OPERATION_FAILED;
-		goto failed_create;
-	}
-
-	output_data = calloc(1, sizeof(tdm_drm_output_data));
-	if (!output_data) {
-		TDM_ERR("alloc failed");
-		drmModeFreeConnector(connector);
-		drmModeFreeEncoder(encoder);
-		ret = TDM_ERROR_OUT_OF_MEMORY;
-		goto failed_create;
-	}
-
-	LIST_INITHEAD(&output_data->layer_list);
-
-	output_data->drm_data = drm_data;
-	output_data->connector_id = drm_data->mode_res->connectors[conn_idx];
-	output_data->encoder_id = encoder->encoder_id;
-	output_data->crtc_id = crtc_id;
-	output_data->pipe = c;
-	output_data->connector_type = connector->connector_type;
-	output_data->connector_type_id = connector->connector_type_id;
-
-	if (connector->connection == DRM_MODE_CONNECTED)
-		output_data->status = TDM_OUTPUT_CONN_STATUS_CONNECTED;
-	else
-		output_data->status = TDM_OUTPUT_CONN_STATUS_DISCONNECTED;
-
-	for (j = 0; j < connector->count_props; j++) {
-		drmModePropertyPtr prop = drmModeGetProperty(drm_data->drm_fd,
-								  connector->props[j]);
-		if (!prop)
-			continue;
-		if (!strcmp(prop->name, "DPMS")) {
-			output_data->dpms_prop_id = connector->props[j];
-			drmModeFreeProperty(prop);
-			break;
-		}
-		drmModeFreeProperty(prop);
-	}
-
-	if (output_data->dpms_prop_id == 0)
-		TDM_WRN("not support DPMS");
-
-	output_data->count_modes = connector->count_modes;
-	output_data->drm_modes = calloc(connector->count_modes,
-									sizeof(drmModeModeInfo));
-	if (!output_data->drm_modes) {
-		TDM_ERR("alloc failed");
-		free(output_data);
-		drmModeFreeConnector(connector);
-		drmModeFreeEncoder(encoder);
-		ret = TDM_ERROR_OUT_OF_MEMORY;
-		goto failed_create;
-	}
-	output_data->output_modes = calloc(connector->count_modes,
-									   sizeof(tdm_output_mode));
-	if (!output_data->output_modes) {
-		TDM_ERR("alloc failed");
-		free(output_data->drm_modes);
-		free(output_data);
-		drmModeFreeConnector(connector);
-		drmModeFreeEncoder(encoder);
-		ret = TDM_ERROR_OUT_OF_MEMORY;
-		goto failed_create;
-	}
-	for (j = 0; j < connector->count_modes; j++) {
-		output_data->drm_modes[j] = connector->modes[j];
-		_tdm_drm_display_to_tdm_mode(&output_data->drm_modes[j],
-									 &output_data->output_modes[j]);
-	}
-
-	if (drm_data->hwc_mode)
-		output_data->hwc_enable = 1;
-
-	LIST_ADDTAIL(&output_data->link, &drm_data->output_list);
-
-	TDM_DBG("output_data(%p) connector_id(%d:%d:%d-%d) encoder_id(%d) crtc_id(%d) pipe(%d) dpms_id(%d)",
-			output_data, output_data->connector_id, output_data->status,
-			output_data->connector_type,
-			output_data->connector_type_id, output_data->encoder_id, output_data->crtc_id,
-			output_data->pipe, output_data->dpms_prop_id);
-
-	drmModeFreeEncoder(encoder);
-	drmModeFreeConnector(connector);
-
-	TDM_DBG("output count: %d", drm_data->mode_res->count_connectors);
-
-	return TDM_ERROR_NONE;
-failed_create:
-	tdm_drm_display_destroy_output_list(drm_data);
-	return ret;
-}
-
-tdm_error
-drm_display_get_capability(tdm_backend_data *bdata, tdm_caps_display *caps)
-{
-	RETURN_VAL_IF_FAIL(caps, TDM_ERROR_INVALID_PARAMETER);
-
-	caps->max_layer_count = -1; /* not defined */
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_display_get_pp_capability(tdm_backend_data *bdata, tdm_caps_pp *caps)
-{
-	return tdm_drm_pp_get_capability(bdata, caps);
-}
-
-tdm_output **
-drm_display_get_outputs(tdm_backend_data *bdata, int *count, tdm_error *error)
-{
-	tdm_drm_data *drm_data = bdata;
-	tdm_drm_output_data *output_data = NULL;
-	tdm_output **outputs;
-	tdm_error ret;
-	int i;
-
-	RETURN_VAL_IF_FAIL(drm_data, NULL);
-	RETURN_VAL_IF_FAIL(count, NULL);
-
-	*count = 0;
-	LIST_FOR_EACH_ENTRY(output_data, &drm_data->output_list, link)
-	(*count)++;
-
-	if (*count == 0) {
-		ret = TDM_ERROR_NONE;
-		goto failed_get;
-	}
-
-	/* will be freed in frontend */
-	outputs = calloc(*count, sizeof(tdm_drm_output_data *));
-	if (!outputs) {
-		TDM_ERR("failed: alloc memory");
-		*count = 0;
-		ret = TDM_ERROR_OUT_OF_MEMORY;
-		goto failed_get;
-	}
-
-	i = 0;
-	LIST_FOR_EACH_ENTRY(output_data, &drm_data->output_list, link)
-	outputs[i++] = output_data;
-
-	if (error)
-		*error = TDM_ERROR_NONE;
-
-	return outputs;
-failed_get:
-	if (error)
-		*error = ret;
-	return NULL;
-}
-
-tdm_error
-drm_display_get_fd(tdm_backend_data *bdata, int *fd)
-{
-	tdm_drm_data *drm_data = bdata;
-
-	RETURN_VAL_IF_FAIL(drm_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(fd, TDM_ERROR_INVALID_PARAMETER);
-
-	*fd = drm_data->drm_fd;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_display_handle_events(tdm_backend_data *bdata)
-{
-	tdm_drm_data *drm_data = bdata;
-	drmEventContext ctx;
-
-	RETURN_VAL_IF_FAIL(drm_data, TDM_ERROR_INVALID_PARAMETER);
-
-	memset(&ctx, 0, sizeof(drmEventContext));
-
-	ctx.version = DRM_EVENT_CONTEXT_VERSION;
-	ctx.page_flip_handler = _tdm_drm_display_cb_event;
-	ctx.vblank_handler = _tdm_drm_display_cb_event;
-
-	drmHandleEvent(drm_data->drm_fd, &ctx);
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_pp *
-drm_display_create_pp(tdm_backend_data *bdata, tdm_error *error)
-{
-	tdm_drm_data *drm_data = bdata;
-
-	RETURN_VAL_IF_FAIL(drm_data, NULL);
-
-	return tdm_drm_pp_create(drm_data, error);
-}
-
-tdm_error
-drm_output_get_capability(tdm_output *output, tdm_caps_output *caps)
-{
-	tdm_drm_output_data *output_data = output;
-	tdm_drm_data *drm_data;
-	drmModeConnectorPtr connector = NULL;
-	drmModeCrtcPtr crtc = NULL;
-	drmModeObjectPropertiesPtr props = NULL;
-	int i;
-	tdm_error ret;
-
-	RETURN_VAL_IF_FAIL(output_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(caps, TDM_ERROR_INVALID_PARAMETER);
-
-	memset(caps, 0, sizeof(tdm_caps_output));
-
-	drm_data = output_data->drm_data;
-
-	snprintf(caps->maker, TDM_NAME_LEN, "unknown");
-	snprintf(caps->model, TDM_NAME_LEN, "unknown");
-	snprintf(caps->name, TDM_NAME_LEN, "unknown");
-
-	caps->status = output_data->status;
-	caps->type = output_data->connector_type;
-	caps->type_id = output_data->connector_type_id;
-
-	connector = drmModeGetConnector(drm_data->drm_fd, output_data->connector_id);
-	RETURN_VAL_IF_FAIL(connector, TDM_ERROR_OPERATION_FAILED);
-
-	caps->mode_count = connector->count_modes;
-	caps->modes = calloc(1, sizeof(tdm_output_mode) * caps->mode_count);
-	if (!caps->modes) {
-		ret = TDM_ERROR_OUT_OF_MEMORY;
-		TDM_ERR("alloc failed\n");
-		goto failed_get;
-	}
-	for (i = 0; i < caps->mode_count; i++)
-		caps->modes[i] = output_data->output_modes[i];
-
-	caps->mmWidth = connector->mmWidth;
-	caps->mmHeight = connector->mmHeight;
-	caps->subpixel = connector->subpixel;
-
-	caps->min_w = drm_data->mode_res->min_width;
-	caps->min_h = drm_data->mode_res->min_height;
-	caps->max_w = drm_data->mode_res->max_width;
-	caps->max_h = drm_data->mode_res->max_height;
-	caps->preferred_align = -1;
-
-	crtc = drmModeGetCrtc(drm_data->drm_fd, output_data->crtc_id);
-	if (!crtc) {
-		ret = TDM_ERROR_OPERATION_FAILED;
-		TDM_ERR("get crtc failed: %m\n");
-		goto failed_get;
-	}
-
-	props = drmModeObjectGetProperties(drm_data->drm_fd, output_data->crtc_id,
-									   DRM_MODE_OBJECT_CRTC);
-	if (!props) {
-		ret = TDM_ERROR_OPERATION_FAILED;
-		TDM_ERR("get crtc properties failed: %m\n");
-		goto failed_get;
-	}
-
-	caps->props = calloc(1, sizeof(tdm_prop) * props->count_props);
-	if (!caps->props) {
-		ret = TDM_ERROR_OUT_OF_MEMORY;
-		TDM_ERR("alloc failed\n");
-		goto failed_get;
-	}
-
-	caps->prop_count = 0;
-	for (i = 0; i < props->count_props; i++) {
-		drmModePropertyPtr prop = drmModeGetProperty(drm_data->drm_fd, props->props[i]);
-		if (!prop)
-			continue;
-		snprintf(caps->props[caps->prop_count].name, TDM_NAME_LEN, "%s", prop->name);
-		caps->props[caps->prop_count].id = props->props[i];
-		caps->prop_count++;
-		drmModeFreeProperty(prop);
-	}
-
-	if (output_data->hwc_enable)
-		caps->capabilities |= TDM_OUTPUT_CAPABILITY_HWC;
-
-	drmModeFreeObjectProperties(props);
-	drmModeFreeCrtc(crtc);
-	drmModeFreeConnector(connector);
-
-	return TDM_ERROR_NONE;
-failed_get:
-	drmModeFreeCrtc(crtc);
-	drmModeFreeObjectProperties(props);
-	drmModeFreeConnector(connector);
-	free(caps->modes);
-	free(caps->props);
-	memset(caps, 0, sizeof(tdm_caps_output));
-	return ret;
-}
-
-tdm_layer **
-drm_output_get_layers(tdm_output *output,  int *count, tdm_error *error)
-{
-	tdm_drm_output_data *output_data = output;
-	tdm_drm_layer_data *layer_data = NULL;
-	tdm_layer **layers;
-	tdm_error ret;
-	int i;
-
-	RETURN_VAL_IF_FAIL(output_data, NULL);
-	RETURN_VAL_IF_FAIL(count, NULL);
-
-	*count = 0;
-	LIST_FOR_EACH_ENTRY(layer_data, &output_data->layer_list, link)
-	(*count)++;
-
-	if (output_data->hwc_enable) {
-		*count = 0;
-		ret = TDM_ERROR_NONE;
-		goto failed_get;
-	}
-
-	if (*count == 0) {
-		ret = TDM_ERROR_NONE;
-		goto failed_get;
-	}
-
-	/* will be freed in frontend */
-	layers = calloc(*count, sizeof(tdm_drm_layer_data *));
-	if (!layers) {
-		TDM_ERR("failed: alloc memory");
-		*count = 0;
-		ret = TDM_ERROR_OUT_OF_MEMORY;
-		goto failed_get;
-	}
-
-	i = 0;
-	LIST_FOR_EACH_ENTRY(layer_data, &output_data->layer_list, link)
-	layers[i++] = layer_data;
-
-	if (error)
-		*error = TDM_ERROR_NONE;
-
-	return layers;
-failed_get:
-	if (error)
-		*error = ret;
-	return NULL;
-}
-
-tdm_error
-drm_output_set_property(tdm_output *output, unsigned int id, tdm_value value)
-{
-	tdm_drm_output_data *output_data = output;
-	tdm_drm_data *drm_data;
-	int ret;
-
-	RETURN_VAL_IF_FAIL(output_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(output_data->crtc_id > 0, TDM_ERROR_INVALID_PARAMETER);
-
-	drm_data = output_data->drm_data;
-	ret = drmModeObjectSetProperty(drm_data->drm_fd,
-								   output_data->crtc_id, DRM_MODE_OBJECT_CRTC,
-								   id, value.u32);
-	if (ret < 0) {
-		TDM_ERR("set property failed: %m");
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_output_get_property(tdm_output *output, unsigned int id, tdm_value *value)
-{
-	tdm_drm_output_data *output_data = output;
-	tdm_drm_data *drm_data;
-	drmModeObjectPropertiesPtr props;
-	int i;
-
-	RETURN_VAL_IF_FAIL(output_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(output_data->crtc_id > 0, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(value, TDM_ERROR_INVALID_PARAMETER);
-
-	drm_data = output_data->drm_data;
-	props = drmModeObjectGetProperties(drm_data->drm_fd, output_data->crtc_id,
-									   DRM_MODE_OBJECT_CRTC);
-	if (props == NULL) {
-		TDM_ERR("get property failed: %m");
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	for (i = 0; i < props->count_props; i++)
-		if (props->props[i] == id) {
-			(*value).u32 = (uint)props->prop_values[i];
-			break;
-		}
-
-	drmModeFreeObjectProperties(props);
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_output_wait_vblank(tdm_output *output, int interval, int sync,
-					   void *user_data)
-{
-	tdm_drm_output_data *output_data = output;
-	tdm_drm_data *drm_data;
-	tdm_drm_event_data *event_data;
-	uint target_msc;
-	tdm_error ret;
-
-	RETURN_VAL_IF_FAIL(output_data, TDM_ERROR_INVALID_PARAMETER);
-
-	event_data = calloc(1, sizeof(tdm_drm_event_data));
-	if (!event_data) {
-		TDM_ERR("alloc failed");
-		return TDM_ERROR_OUT_OF_MEMORY;
-	}
-
-	drm_data = output_data->drm_data;
-
-	ret = _tdm_drm_display_get_cur_msc(drm_data->drm_fd, output_data->pipe,
-									   &target_msc);
-	if (ret != TDM_ERROR_NONE)
-		goto failed_vblank;
-
-	target_msc += interval;
-
-	event_data->type = TDM_DRM_EVENT_TYPE_WAIT;
-	event_data->output_data = output_data;
-	event_data->user_data = user_data;
-
-	ret = _tdm_drm_display_wait_vblank(drm_data->drm_fd, output_data->pipe,
-									   &target_msc, event_data);
-	if (ret != TDM_ERROR_NONE)
-		goto failed_vblank;
-
-	return TDM_ERROR_NONE;
-failed_vblank:
-	free(event_data);
-	return ret;
-}
-
-tdm_error
-drm_output_set_vblank_handler(tdm_output *output,
-							  tdm_output_vblank_handler func)
-{
-	tdm_drm_output_data *output_data = output;
-
-	RETURN_VAL_IF_FAIL(output_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(func, TDM_ERROR_INVALID_PARAMETER);
-
-	output_data->vblank_func = func;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_output_commit(tdm_output *output, int sync, void *user_data)
-{
-	tdm_drm_output_data *output_data = output;
-	tdm_drm_data *drm_data;
-	tdm_drm_layer_data *layer_data = NULL;
-	tdm_error ret;
-	int do_waitvblank = 1;
-
-	RETURN_VAL_IF_FAIL(output_data, TDM_ERROR_INVALID_PARAMETER);
-
-	drm_data = output_data->drm_data;
-
-	LIST_FOR_EACH_ENTRY(layer_data, &output_data->layer_list, link) {
-		if (layer_data == output_data->primary_layer) {
-			ret = _tdm_drm_display_commit_primary_layer(layer_data, user_data,
-							&do_waitvblank);
-			if (ret != TDM_ERROR_NONE)
-				return ret;
-		} else {
-			ret = _tdm_drm_display_commit_layer(layer_data);
-			if (ret != TDM_ERROR_NONE)
-				return ret;
-		}
-	}
-
-	if (do_waitvblank == 1) {
-		tdm_drm_event_data *event_data = calloc(1, sizeof(tdm_drm_event_data));
-		uint target_msc;
-
-		if (!event_data) {
-			TDM_ERR("alloc failed");
-			return TDM_ERROR_OUT_OF_MEMORY;
-		}
-
-		ret = _tdm_drm_display_get_cur_msc(drm_data->drm_fd, output_data->pipe,
-										   &target_msc);
-		if (ret != TDM_ERROR_NONE) {
-			free(event_data);
-			return ret;
-		}
-
-		target_msc++;
-
-		event_data->type = TDM_DRM_EVENT_TYPE_COMMIT;
-		event_data->output_data = output_data;
-		event_data->user_data = user_data;
-
-		ret = _tdm_drm_display_wait_vblank(drm_data->drm_fd, output_data->pipe,
-										   &target_msc, event_data);
-		if (ret != TDM_ERROR_NONE) {
-			free(event_data);
-			return ret;
-		}
-	}
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_output_set_commit_handler(tdm_output *output,
-							  tdm_output_commit_handler func)
-{
-	tdm_drm_output_data *output_data = output;
-
-	RETURN_VAL_IF_FAIL(output_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(func, TDM_ERROR_INVALID_PARAMETER);
-
-	output_data->commit_func = func;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_output_set_dpms(tdm_output *output, tdm_output_dpms dpms_value)
-{
-	tdm_drm_output_data *output_data = output;
-	tdm_drm_data *drm_data;
-	int ret;
-
-	RETURN_VAL_IF_FAIL(output_data, TDM_ERROR_INVALID_PARAMETER);
-
-	if (output_data->dpms_prop_id == 0) {
-		TDM_WRN("not support DPMS");
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	drm_data = output_data->drm_data;
-	ret = drmModeObjectSetProperty(drm_data->drm_fd,
-								   output_data->connector_id, DRM_MODE_OBJECT_CONNECTOR,
-								   output_data->dpms_prop_id, dpms_value);
-	if (ret < 0) {
-		TDM_ERR("set dpms failed: %m");
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	output_data->current_dpms = dpms_value;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_output_get_dpms(tdm_output *output, tdm_output_dpms *dpms_value)
-{
-	tdm_drm_output_data *output_data = output;
-	tdm_drm_data *drm_data;
-	drmModeObjectPropertiesPtr props;
-	int i;
-
-	RETURN_VAL_IF_FAIL(output_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(dpms_value, TDM_ERROR_INVALID_PARAMETER);
-
-	drm_data = output_data->drm_data;
-	props = drmModeObjectGetProperties(drm_data->drm_fd, output_data->connector_id,
-									   DRM_MODE_OBJECT_CONNECTOR);
-	if (props == NULL) {
-		TDM_ERR("get property failed: %m");
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	for (i = 0; i < props->count_props; i++)
-		if (props->props[i] == output_data->dpms_prop_id) {
-			*dpms_value = (uint)props->prop_values[i];
-			break;
-		}
-
-	drmModeFreeObjectProperties(props);
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_output_set_mode(tdm_output *output, const tdm_output_mode *mode)
-{
-	tdm_drm_output_data *output_data = output;
-	tdm_error ret = TDM_ERROR_NONE;
-
-	RETURN_VAL_IF_FAIL(output_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(mode, TDM_ERROR_INVALID_PARAMETER);
-
-	/* create or replace the target_window when the output mode is set */
-	if (output_data->hwc_enable) {
-		ret = drm_hwc_target_window_set_info(output_data->hwc_data, mode->hdisplay, mode->vdisplay);
-		if (ret != TDM_ERROR_NONE) {
-			TDM_ERR("set info target hwc window failed (%d)", ret);
-			return ret;
-		}
-	}
-
-	output_data->current_mode = mode;
-	output_data->mode_changed = 1;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_output_get_mode(tdm_output *output, const tdm_output_mode **mode)
-{
-	tdm_drm_output_data *output_data = output;
-
-	RETURN_VAL_IF_FAIL(output_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(mode, TDM_ERROR_INVALID_PARAMETER);
-
-	*mode = output_data->current_mode;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_hwc *
-drm_output_get_hwc(tdm_output *output, tdm_error *error)
-{
-	tdm_drm_hwc_data *hwc_data = NULL;
-	tdm_drm_output_data *output_data = output;
-	tdm_error ret = TDM_ERROR_NONE;
-
-	if (!output_data) {
-		TDM_ERR("invalid params");
-		if (error)
-			*error = TDM_ERROR_INVALID_PARAMETER;
-		return NULL;
-	}
-
-	if (output_data->hwc_data) {
-		TDM_INFO("hwc_data already exists");
-		if (error)
-			*error = TDM_ERROR_NONE;
-		return output_data->hwc_data;
-	}
-
-	hwc_data = calloc(1, sizeof(tdm_drm_hwc_data));
-	if (!hwc_data) {
-		TDM_ERR("alloc failed");
-		if (error)
-			*error = TDM_ERROR_OUT_OF_MEMORY;
-		return NULL;
-	}
-	hwc_data->output_data = output_data;
-
-	LIST_INITHEAD(&hwc_data->hwc_window_list);
-
-	output_data->hwc_data = hwc_data;
-
-	ret = drm_hwc_initailize_target_window(output_data->hwc_data);
-	if (ret != TDM_ERROR_NONE) {
-		TDM_ERR("create target hwc window failed (%d)", ret);
-		free(hwc_data);
-		if (error)
-			*error = ret;
-		return NULL;
-	}
-
-	if (error)
-		*error = TDM_ERROR_NONE;
-
-	return hwc_data;
-}
-
-tdm_error
-drm_output_set_status_handler(tdm_output *output,
-							  tdm_output_status_handler func,
-							  void *user_data)
-{
-	tdm_drm_output_data *output_data = output;
-
-	RETURN_VAL_IF_FAIL(output_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(func, TDM_ERROR_INVALID_PARAMETER);
-
-	output_data->status_func = func;
-	output_data->status_user_data = user_data;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_layer_get_capability(tdm_layer *layer, tdm_caps_layer *caps)
-{
-	tdm_drm_layer_data *layer_data = layer;
-	tdm_drm_data *drm_data;
-	drmModePlanePtr plane = NULL;
-	drmModeObjectPropertiesPtr props = NULL;
-	int i, format_count = 0;
-	tdm_error ret;
-
-	RETURN_VAL_IF_FAIL(layer_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(caps, TDM_ERROR_INVALID_PARAMETER);
-
-	memset(caps, 0, sizeof(tdm_caps_layer));
-
-	drm_data = layer_data->drm_data;
-	plane = drmModeGetPlane(drm_data->drm_fd, layer_data->plane_id);
-	if (!plane) {
-		TDM_ERR("get plane failed: %m");
-		ret = TDM_ERROR_OPERATION_FAILED;
-		goto failed_get;
-	}
-
-	caps->capabilities = layer_data->capabilities;
-	caps->zpos = layer_data->zpos;  /* if VIDEO layer, zpos is -1 */
-
-	caps->format_count = plane->count_formats;
-	caps->formats = calloc(1, sizeof(tbm_format) * caps->format_count);
-	if (!caps->formats) {
-		ret = TDM_ERROR_OUT_OF_MEMORY;
-		TDM_ERR("alloc failed\n");
-		goto failed_get;
-	}
-
-	for (i = 0; i < caps->format_count; i++) {
-		/* TODO: kernel reports wrong formats */
-		if (plane->formats[i] != DRM_FORMAT_XRGB8888 &&
-			plane->formats[i] != DRM_FORMAT_ARGB8888) {
-			TDM_WRN("plane(%d) zpos(%d) %c%c%c%c skipped",
-					layer_data->plane_id, layer_data->zpos, FOURCC_STR(plane->formats[i]));
-			continue;
-		}
-		caps->formats[format_count] = tdm_drm_format_to_tbm_format(plane->formats[i]);
-		format_count++;
-	}
-
-	caps->format_count = format_count;
-
-	props = drmModeObjectGetProperties(drm_data->drm_fd, layer_data->plane_id,
-									   DRM_MODE_OBJECT_PLANE);
-	if (!props) {
-		ret = TDM_ERROR_OPERATION_FAILED;
-		TDM_ERR("get plane properties failed: %m\n");
-		goto failed_get;
-	}
-
-	caps->props = calloc(1, sizeof(tdm_prop) * props->count_props);
-	if (!caps->props) {
-		ret = TDM_ERROR_OUT_OF_MEMORY;
-		TDM_ERR("alloc failed\n");
-		goto failed_get;
-	}
-
-	caps->prop_count = 0;
-	for (i = 0; i < props->count_props; i++) {
-		drmModePropertyPtr prop = drmModeGetProperty(drm_data->drm_fd, props->props[i]);
-		if (!prop)
-			continue;
-		if (!strncmp(prop->name, "type", TDM_NAME_LEN)) {
-			drmModeFreeProperty(prop);
-			continue;
-		}
-		if (!strncmp(prop->name, "zpos", TDM_NAME_LEN)) {
-			drmModeFreeProperty(prop);
-			continue;
-		}
-		snprintf(caps->props[caps->prop_count].name, TDM_NAME_LEN, "%s", prop->name);
-		caps->props[caps->prop_count].id = props->props[i];
-		caps->prop_count++;
-		drmModeFreeProperty(prop);
-	}
-
-	drmModeFreeObjectProperties(props);
-	drmModeFreePlane(plane);
-
-	return TDM_ERROR_NONE;
-failed_get:
-	drmModeFreeObjectProperties(props);
-	drmModeFreePlane(plane);
-	free(caps->formats);
-	free(caps->props);
-	memset(caps, 0, sizeof(tdm_caps_layer));
-	return ret;
-}
-
-tdm_error
-drm_layer_set_property(tdm_layer *layer, unsigned int id, tdm_value value)
-{
-	tdm_drm_layer_data *layer_data = layer;
-	tdm_drm_data *drm_data;
-	int ret;
-
-	RETURN_VAL_IF_FAIL(layer_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(layer_data->plane_id > 0, TDM_ERROR_INVALID_PARAMETER);
-
-	drm_data = layer_data->drm_data;
-	ret = drmModeObjectSetProperty(drm_data->drm_fd,
-								   layer_data->plane_id, DRM_MODE_OBJECT_PLANE,
-								   id, value.u32);
-	if (ret < 0) {
-		TDM_ERR("set property failed: %m");
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_layer_get_property(tdm_layer *layer, unsigned int id, tdm_value *value)
-{
-	tdm_drm_layer_data *layer_data = layer;
-	tdm_drm_data *drm_data;
-	drmModeObjectPropertiesPtr props;
-	int i;
-
-	RETURN_VAL_IF_FAIL(layer_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(layer_data->plane_id > 0, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(value, TDM_ERROR_INVALID_PARAMETER);
-
-	drm_data = layer_data->drm_data;
-	props = drmModeObjectGetProperties(drm_data->drm_fd, layer_data->plane_id,
-									   DRM_MODE_OBJECT_PLANE);
-	if (props == NULL) {
-		TDM_ERR("get property failed: %m");
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	for (i = 0; i < props->count_props; i++)
-		if (props->props[i] == id) {
-			(*value).u32 = (uint)props->prop_values[i];
-			break;
-		}
-
-	drmModeFreeObjectProperties(props);
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_layer_set_info(tdm_layer *layer, tdm_info_layer *info)
-{
-	tdm_drm_layer_data *layer_data = layer;
-
-	RETURN_VAL_IF_FAIL(layer_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(info, TDM_ERROR_INVALID_PARAMETER);
-
-	layer_data->info = *info;
-	layer_data->info_changed = 1;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_layer_get_info(tdm_layer *layer, tdm_info_layer *info)
-{
-	tdm_drm_layer_data *layer_data = layer;
-
-	RETURN_VAL_IF_FAIL(layer_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(info, TDM_ERROR_INVALID_PARAMETER);
-
-	*info = layer_data->info;
-
-	return TDM_ERROR_NONE;
-}
-
-static tdm_drm_display_buffer *
-_tdm_drm_display_find_buffer(tdm_drm_data *drm_data, tbm_surface_h buffer)
-{
-	tdm_drm_display_buffer *display_buffer = NULL;
-
-	LIST_FOR_EACH_ENTRY(display_buffer, &drm_data->buffer_list, link) {
-		if (display_buffer->buffer == buffer)
-			return display_buffer;
-	}
-
-	return NULL;
-}
-
-static void
-_tdm_drm_display_cb_destroy_buffer(tbm_surface_h buffer, void *user_data)
-{
-	tdm_drm_data *drm_data;
-	tdm_drm_display_buffer *display_buffer;
-	tdm_drm_layer_data *layer_data = NULL;
-	tdm_drm_output_data *output_data = NULL;
-	char buf[256] = {0,};
-	char *ret_tmp;
-
-	if (!user_data) {
-		TDM_ERR("no user_data");
-		return;
-	}
-	if (!buffer) {
-		TDM_ERR("no buffer");
-		return;
-	}
-
-	drm_data = (tdm_drm_data *) user_data;
-
-	display_buffer = _tdm_drm_display_find_buffer(drm_data, buffer);
-	if (!display_buffer) {
-		TDM_ERR("no display_buffer");
-		return;
-	}
-
-	LIST_FOR_EACH_ENTRY(output_data, &drm_data->output_list, link) {
-		LIST_FOR_EACH_ENTRY(layer_data, &output_data->layer_list, link) {
-			if (display_buffer == layer_data->display_buffer)
-				layer_data->display_buffer = NULL;
-		}
-	}
-
-	if (display_buffer->fb_id > 0) {
-		if (drmModeRmFB(drm_data->drm_fd, display_buffer->fb_id) < 0) {
-			ret_tmp = strerror_r(errno, buf, sizeof(buf));
-			TDM_ERR("rm fb failed: %d(%s,%s)\n", errno, buf, ret_tmp);
-		}
-	}
-
-	TDM_DBG("destroy buffer:%p", display_buffer->buffer);
-
-	LIST_DEL(&display_buffer->link);
-	free(display_buffer);
-}
-
-static tdm_drm_display_buffer *
-_tdm_drm_display_create_buffer(tdm_drm_data *drm_data, tbm_surface_h buffer, tdm_error *err)
-{
-	tdm_drm_display_buffer *display_buffer = NULL;
-	tdm_error res = TDM_ERROR_NONE;
-	int count, i, ret;
-
-	display_buffer = calloc(1, sizeof(tdm_drm_display_buffer));
-	if (!display_buffer) {
-		TDM_ERR("alloc failed");
-		if (err)
-			*err = TDM_ERROR_OUT_OF_MEMORY;
-		return NULL;
-	}
-
-	display_buffer->buffer = buffer;
-
-	res = tdm_buffer_add_destroy_handler(buffer, _tdm_drm_display_cb_destroy_buffer, drm_data);
-	if (res != TDM_ERROR_NONE) {
-		TDM_ERR("add destroy handler fail");
-		free(display_buffer);
-		if (err)
-			*err = res;
-		return NULL;
-	}
-
-	display_buffer->width = tbm_surface_get_width(buffer);
-	display_buffer->height = tbm_surface_get_height(buffer);
-	display_buffer->format = tbm_surface_get_format(buffer);
-	display_buffer->count = tbm_surface_internal_get_num_bos(buffer);
-	count = tbm_surface_internal_get_num_planes(display_buffer->format);
-	TDM_DBG("create buffer:%p %dx%d %c%c%c%c bo_num:%d plane_num:%d",
-			buffer, display_buffer->width, display_buffer->height,
-			FOURCC_STR(display_buffer->format), display_buffer->count, count);
-
-	for (i = 0; i < count; i++) {
-		int bo_idx = 0;
-		tbm_bo bo = NULL;
-
-		bo_idx = tbm_surface_internal_get_plane_bo_idx(buffer, i);
-		bo = tbm_surface_internal_get_bo(buffer, bo_idx);
-		display_buffer->handles[i] = tbm_bo_get_handle(bo, TBM_DEVICE_DEFAULT).u32;
-
-		tbm_surface_internal_get_plane_data(buffer, i, &display_buffer->size,
-											&display_buffer->offsets[i],
-											&display_buffer->pitches[i]);
-		TDM_DBG("  create buffer:%p plane%d(size:%d offset:%d pitch:%d) bo%d(handle:%d)",
-				buffer, i, display_buffer->size, display_buffer->offsets[i],
-				display_buffer->pitches[i], bo_idx, display_buffer->handles[i]);
-	}
-
-	ret = drmModeAddFB2(drm_data->drm_fd, display_buffer->width, display_buffer->height,
-				display_buffer->format,	display_buffer->handles, display_buffer->pitches,
-				display_buffer->offsets, &display_buffer->fb_id, 0);
-	if (ret < 0) {
-		TDM_ERR("add fb failed: %m");
-		free(display_buffer);
-		if (err)
-			*err = TDM_ERROR_OPERATION_FAILED;
-		return NULL;
-	}
-
-	TDM_DBG("drm_data->drm_fd : %d, display_buffer->fb_id:%u", drm_data->drm_fd,
-			display_buffer->fb_id);
-
-	if (IS_RGB(display_buffer->format))
-		display_buffer->width = display_buffer->pitches[0] >> 2;
-	else
-		display_buffer->width = display_buffer->pitches[0];
-
-	LIST_ADDTAIL(&display_buffer->link, &drm_data->buffer_list);
-
-	if (err)
-		*err = TDM_ERROR_NONE;
-
-	return display_buffer;
-}
-
-void
-tdm_drm_data_destroy_buffer_list(tdm_drm_data *drm_data)
-{
-	tdm_drm_display_buffer *b = NULL, *bb = NULL;
-
-	LIST_FOR_EACH_ENTRY_SAFE(b, bb, &drm_data->buffer_list, link) {
-		tdm_buffer_remove_destroy_handler(b->buffer, _tdm_drm_display_cb_destroy_buffer, drm_data);
-		_tdm_drm_display_cb_destroy_buffer(b->buffer, drm_data);
-	}
-}
-
-tdm_error
-drm_layer_set_buffer(tdm_layer *layer, tbm_surface_h buffer)
-{
-	tdm_drm_layer_data *layer_data = layer;
-	tdm_drm_data *drm_data;
-	tdm_drm_display_buffer *display_buffer;
-	tdm_error err = TDM_ERROR_NONE;
-
-	RETURN_VAL_IF_FAIL(layer_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(buffer, TDM_ERROR_INVALID_PARAMETER);
-
-	TDM_DBG("layer[%p]zpos[%d] buffer:%p", layer, layer_data->zpos, buffer);
-
-	drm_data = layer_data->drm_data;
-	display_buffer = _tdm_drm_display_find_buffer(drm_data, buffer);
-	if (!display_buffer) {
-		display_buffer = _tdm_drm_display_create_buffer(drm_data, buffer, &err);
-		RETURN_VAL_IF_FAIL(display_buffer != NULL, err);
-	}
-
-	if (layer_data->display_buffer != display_buffer) {
-		if (layer_data->display_buffer)
-			tbm_surface_internal_unref(layer_data->display_buffer->buffer);
-
-		layer_data->display_buffer = display_buffer;
-		tbm_surface_internal_ref(layer_data->display_buffer->buffer);
-		layer_data->display_buffer_changed = 1;
-	}
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_layer_unset_buffer(tdm_layer *layer)
-{
-	tdm_drm_layer_data *layer_data = layer;
-
-	RETURN_VAL_IF_FAIL(layer_data, TDM_ERROR_INVALID_PARAMETER);
-
-	if (!(layer_data->capabilities & TDM_LAYER_CAPABILITY_PRIMARY) && layer_data->display_buffer) {
-		tbm_surface_internal_unref(layer_data->display_buffer->buffer);
-		layer_data->display_buffer = NULL;
-	}
-
-	layer_data->display_buffer_changed = 1;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_drm_layer_data *
-drm_output_data_get_layer_data(tdm_drm_output_data *output_data, int layer_zpos)
-{
-	tdm_drm_layer_data *l = NULL;
-
-	RETURN_VAL_IF_FAIL(output_data, NULL);
-
-	LIST_FOR_EACH_ENTRY(l, &output_data->layer_list, link) {
-		if (l->zpos == layer_zpos)
-			return l;
-	}
-
-	return NULL;
-}
diff --git a/src/libtdm-drm/tdm_drm_format.c b/src/libtdm-drm/tdm_drm_format.c
deleted file mode 100644
index 2f009d8..0000000
--- a/src/libtdm-drm/tdm_drm_format.c
+++ /dev/null
@@ -1,134 +0,0 @@
-/**************************************************************************
-
-libtdm_drm
-
-Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
-
-Contact: SooChan Lim <sc1.lim@samsung.com>
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sub license, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice (including the
-next paragraph) shall be included in all copies or substantial portions
-of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
-IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
-ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-**************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <drm_fourcc.h>
-#include <tbm_surface.h>
-
-#include "tdm_drm.h"
-
-typedef struct {
-	tbm_format  tbm_format;
-	uint32_t	drm_format;
-} tbm_drm_format_data;
-
-static const tbm_drm_format_data formats[] = {
-	{TBM_FORMAT_C8, DRM_FORMAT_C8},
-	{TBM_FORMAT_RGB332, DRM_FORMAT_RGB332},
-	{TBM_FORMAT_BGR233, DRM_FORMAT_BGR233},
-	{TBM_FORMAT_XRGB4444, DRM_FORMAT_XRGB4444},
-	{TBM_FORMAT_XBGR4444, DRM_FORMAT_XBGR4444},
-	{TBM_FORMAT_RGBX4444, DRM_FORMAT_RGBX4444},
-	{TBM_FORMAT_BGRX4444, DRM_FORMAT_BGRX4444},
-	{TBM_FORMAT_ARGB4444, DRM_FORMAT_ARGB4444},
-	{TBM_FORMAT_ABGR4444, DRM_FORMAT_ABGR4444},
-	{TBM_FORMAT_RGBA4444, DRM_FORMAT_RGBA4444},
-	{TBM_FORMAT_BGRA4444, DRM_FORMAT_BGRA4444},
-	{TBM_FORMAT_XRGB1555, DRM_FORMAT_XRGB1555},
-	{TBM_FORMAT_XBGR1555, DRM_FORMAT_XBGR1555},
-	{TBM_FORMAT_RGBX5551, DRM_FORMAT_RGBX5551},
-	{TBM_FORMAT_BGRX5551, DRM_FORMAT_BGRX5551},
-	{TBM_FORMAT_ARGB1555, DRM_FORMAT_ARGB1555},
-	{TBM_FORMAT_ABGR1555, DRM_FORMAT_ABGR1555},
-	{TBM_FORMAT_RGBA5551, DRM_FORMAT_RGBA5551},
-	{TBM_FORMAT_BGRA5551, DRM_FORMAT_BGRA5551},
-	{TBM_FORMAT_RGB565, DRM_FORMAT_RGB565},
-	{TBM_FORMAT_BGR565, DRM_FORMAT_BGR565},
-	{TBM_FORMAT_RGB888, DRM_FORMAT_RGB888},
-	{TBM_FORMAT_BGR888, DRM_FORMAT_BGR888},
-	{TBM_FORMAT_XRGB8888, DRM_FORMAT_XRGB8888},
-	{TBM_FORMAT_XBGR8888, DRM_FORMAT_XBGR8888},
-	{TBM_FORMAT_RGBX8888, DRM_FORMAT_RGBX8888},
-	{TBM_FORMAT_BGRX8888, DRM_FORMAT_BGRX8888},
-	{TBM_FORMAT_ARGB8888, DRM_FORMAT_ARGB8888},
-	{TBM_FORMAT_ABGR8888, DRM_FORMAT_ABGR8888},
-	{TBM_FORMAT_RGBA8888, DRM_FORMAT_RGBA8888},
-	{TBM_FORMAT_BGRA8888, DRM_FORMAT_BGRA8888},
-	{TBM_FORMAT_XRGB2101010, DRM_FORMAT_XRGB2101010},
-	{TBM_FORMAT_XBGR2101010, DRM_FORMAT_XBGR2101010},
-	{TBM_FORMAT_RGBX1010102, DRM_FORMAT_RGBX1010102},
-	{TBM_FORMAT_BGRX1010102, DRM_FORMAT_BGRX1010102},
-	{TBM_FORMAT_ARGB2101010, DRM_FORMAT_ARGB2101010},
-	{TBM_FORMAT_ABGR2101010, DRM_FORMAT_ABGR2101010},
-	{TBM_FORMAT_RGBA1010102, DRM_FORMAT_RGBA1010102},
-	{TBM_FORMAT_BGRA1010102, DRM_FORMAT_BGRA1010102},
-	{TBM_FORMAT_YUYV, DRM_FORMAT_YUYV},
-	{TBM_FORMAT_YVYU, DRM_FORMAT_YVYU},
-	{TBM_FORMAT_UYVY, DRM_FORMAT_UYVY},
-	{TBM_FORMAT_VYUY, DRM_FORMAT_VYUY},
-	{TBM_FORMAT_AYUV, DRM_FORMAT_AYUV},
-	{TBM_FORMAT_NV12, DRM_FORMAT_NV12},
-	{TBM_FORMAT_NV21, DRM_FORMAT_NV21},
-	{TBM_FORMAT_NV16, DRM_FORMAT_NV16},
-	{TBM_FORMAT_NV61, DRM_FORMAT_NV61},
-	{TBM_FORMAT_YUV410, DRM_FORMAT_YUV410},
-	{TBM_FORMAT_YVU410, DRM_FORMAT_YVU410},
-	{TBM_FORMAT_YUV411, DRM_FORMAT_YUV411},
-	{TBM_FORMAT_YVU411, DRM_FORMAT_YVU411},
-	{TBM_FORMAT_YUV420, DRM_FORMAT_YUV420},
-	{TBM_FORMAT_YVU420, DRM_FORMAT_YVU420},
-	{TBM_FORMAT_YUV422, DRM_FORMAT_YUV422},
-	{TBM_FORMAT_YVU422, DRM_FORMAT_YVU422},
-	{TBM_FORMAT_YUV444, DRM_FORMAT_YUV444},
-	{TBM_FORMAT_YVU444, DRM_FORMAT_YVU444},
-};
-
-#define NUM_FORMATS (sizeof(formats) / sizeof(formats[0]))
-
-uint32_t
-tdm_drm_format_to_drm_format(tbm_format format)
-{
-	int i;
-
-	for (i = 0; i < NUM_FORMATS; i++)
-		if (formats[i].tbm_format == format)
-			return formats[i].drm_format;
-
-	TDM_ERR("tbm format '%c%c%c%c' not found", FOURCC_STR(format));
-
-	return 0;
-}
-
-tbm_format
-tdm_drm_format_to_tbm_format(uint32_t format)
-{
-	int i;
-
-	for (i = 0; i < NUM_FORMATS; i++)
-		if (formats[i].drm_format == format)
-			return formats[i].tbm_format;
-
-	TDM_ERR("drm format '%c%c%c%c' not found", FOURCC_STR(format));
-
-	return 0;
-}
diff --git a/src/libtdm-drm/tdm_drm_hwc.c b/src/libtdm-drm/tdm_drm_hwc.c
deleted file mode 100644
index 07f7d9d..0000000
--- a/src/libtdm-drm/tdm_drm_hwc.c
+++ /dev/null
@@ -1,801 +0,0 @@
-/**************************************************************************
-
-libtdm_drm
-
-Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
-
-Contact: SooChan Lim <sc1.lim@samsung.com>
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sub license, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice (including the
-next paragraph) shall be included in all copies or substantial portions
-of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
-IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
-ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-**************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <tdm_helper.h>
-#include "tdm_drm.h"
-
-#define MIN_WIDTH      32
-
-#define NUM_LAYERS     4
-#define NUM_BUFFERS    3
-
-#define NUM_UI_LAYERS  1
-
-#define ZPOS_MAX       1
-#define ZPOS_CURSOR    2
-#define ZPOS_1         1
-#define ZPOS_0         0
-#define ZPOS_VIDEO1    0
-#define ZPOS_NONE      -999
-
-tbm_format hwc_window_video_formats[] = {
-	TBM_FORMAT_NV12,
-	TBM_FORMAT_YUV420
-};
-
-const char *
-_comp_to_str(tdm_hwc_window_composition composition_type)
-{
-	if (composition_type == TDM_HWC_WIN_COMPOSITION_CLIENT)
-		return "CLIENT";
-	else if (composition_type == TDM_HWC_WIN_COMPOSITION_DEVICE)
-		return "DEVICE";
-	else if (composition_type == TDM_HWC_WIN_COMPOSITION_CURSOR)
-		return "CURSOR";
-	else if (composition_type == TDM_HWC_WIN_COMPOSITION_VIDEO)
-		return "VIDEO";
-	else if (composition_type == TDM_HWC_WIN_COMPOSITION_NONE)
-		return "SKIP";
-
-	return "unknown";
-}
-
-static int
-_drm_hwc_cursor_buffer_unset(tdm_drm_hwc_window_data *hwc_window_data)
-{
-	hwc_window_data->surface = NULL;
-	hwc_window_data->cursor_img_surface = 0;
-
-	hwc_window_data->info.src_config.pos.w = hwc_window_data->cursor_img.width;
-	hwc_window_data->info.src_config.pos.h = hwc_window_data->cursor_img.height;
-	hwc_window_data->info.dst_pos.w = hwc_window_data->cursor_img.width;
-	hwc_window_data->info.dst_pos.h = hwc_window_data->cursor_img.height;
-
-	return 1;
-}
-
-static void
-_drm_hwc_cursor_adjust_pos(tdm_drm_hwc_window_data *hwc_window_data)
-{
-	int x, y;
-
-	/* dst pos of cursor is possible set by negative value
-	 * this is temporary code.
-	 */
-
-	x = hwc_window_data->info.dst_pos.x;
-	y = hwc_window_data->info.dst_pos.y;
-
-	if (x < 0) hwc_window_data->info.dst_pos.x = 0;
-	if (y < 0) hwc_window_data->info.dst_pos.y = 0;
-}
-
-static int
-_drm_hwc_cursor_buffer_set(tdm_drm_hwc_data *hwc_data, tdm_drm_hwc_window_data *hwc_window_data)
-{
-	tbm_surface_h cursor_tsurface = NULL;
-	tbm_surface_info_s tsurface_info;
-	tbm_surface_error_e ret = TBM_SURFACE_ERROR_NONE;
-	int img_w, img_h, new_w, new_h;
-	tbm_format new_format;
-	unsigned int flags = TBM_BO_SCANOUT;
-	void *src_ptr = NULL, *dst_ptr = NULL;
-	int src_stride;
-	int i;
-
-	_drm_hwc_cursor_adjust_pos(hwc_window_data);
-
-	if (!hwc_window_data->cursor_img_refresh && hwc_window_data->surface)
-		return 1;
-
-	img_w = hwc_window_data->cursor_img.width;
-	img_h = hwc_window_data->cursor_img.height;
-	new_format = hwc_window_data->info.src_config.format;
-
-	/* cursor restriction to set the cursor layer */
-	new_w = (CURSOR_MIN_W > img_w) ? CURSOR_MIN_W : img_w;
-	new_h = (CURSOR_MIN_H > img_h) ? CURSOR_MIN_H : img_h;
-
-	if (hwc_data->cursor_tsurface) {
-		tbm_surface_internal_unref(hwc_data->cursor_tsurface);
-		hwc_data->cursor_tsurface = NULL;
-	}
-
-	cursor_tsurface = tbm_surface_internal_create_with_flags(new_w, new_h, new_format, flags);
-	RETURN_VAL_IF_FAIL(cursor_tsurface, 0);
-
-	hwc_data->cursor_tsurface = cursor_tsurface;
-	ret = tbm_surface_map(hwc_data->cursor_tsurface, TBM_SURF_OPTION_WRITE, &tsurface_info);
-	if (ret != TBM_SURFACE_ERROR_NONE) {
-		TDM_ERR("Failed to map tsurface\n");
-		tbm_surface_internal_unref(hwc_data->cursor_tsurface);
-		hwc_data->cursor_tsurface = NULL;
-		return 0;
-	}
-
-	src_ptr = hwc_window_data->cursor_img.ptr;
-	dst_ptr = tsurface_info.planes[0].ptr;
-	src_stride = hwc_window_data->cursor_img.stride;
-
-	memset(dst_ptr, 0, tsurface_info.planes[0].stride * tsurface_info.height);
-
-	for (i = 0 ; i < img_h ; i++) {
-		memcpy(dst_ptr, src_ptr, src_stride);
-		dst_ptr += tsurface_info.planes[0].stride;
-		src_ptr += src_stride;
-	}
-
-	tbm_surface_unmap(hwc_data->cursor_tsurface);
-
-	hwc_window_data->surface = hwc_data->cursor_tsurface;
-	hwc_window_data->cursor_img_surface = 1;
-
-	/* fix the dst_pos info of the cursor window */
-	hwc_window_data->info.src_config.pos.w = new_w;
-	hwc_window_data->info.src_config.pos.h = new_h;
-	hwc_window_data->info.dst_pos.w = new_w;
-	hwc_window_data->info.dst_pos.h = new_h;
-
-	hwc_window_data->cursor_img_refresh = 0;
-
-	return 1;
-}
-
-static void
-_print_validate_result(tdm_drm_hwc_data *hwc_data, tdm_hwc_window **composited_wnds, uint32_t num_wnds)
-{
-	tdm_drm_hwc_window_data *hwc_window_data = NULL;
-	int i;
-
-	for (i = 0; i < num_wnds; i++) {
-		hwc_window_data = composited_wnds[i];
-		switch (hwc_window_data->validated_type) {
-		case TDM_HWC_WIN_COMPOSITION_CLIENT:
-			TDM_INFO(" window(%p) %s -> %s : lzpos(%d) -- {%s} on TARGET WINDOW", hwc_window_data,
-					_comp_to_str(hwc_window_data->client_type),
-					_comp_to_str(hwc_window_data->validated_type),
-					hwc_data->target_hwc_window->lzpos,
-					hwc_window_data->name ? hwc_window_data->name : "NONE");
-			break;
-		case TDM_HWC_WIN_COMPOSITION_DEVICE:
-		case TDM_HWC_WIN_COMPOSITION_VIDEO:
-		case TDM_HWC_WIN_COMPOSITION_CURSOR:
-		case TDM_HWC_WIN_COMPOSITION_NONE:
-			TDM_INFO(" window(%p) %s -> %s : lzpos(%d) -- {%s}", hwc_window_data,
-					_comp_to_str(hwc_window_data->client_type),
-					_comp_to_str(hwc_window_data->validated_type),
-					hwc_window_data->lzpos,
-					hwc_window_data->name ? hwc_window_data->name : "NONE");
-			break;
-		default:
-			break;
-		}
-	}
-}
-
-static int
-_drm_hwc_window_can_set_on_hw_layer(tdm_drm_hwc_window_data *hwc_window_data)
-{
-	if (!hwc_window_data->surface)
-		return 0;
-
-	if (hwc_window_data->info.transform != TDM_TRANSFORM_NORMAL)
-		return 0;
-
-	if (hwc_window_data->info.src_config.pos.w != hwc_window_data->info.dst_pos.w)
-		return 0;
-
-	if (hwc_window_data->info.src_config.pos.h != hwc_window_data->info.dst_pos.h)
-		return 0;
-
-	if (!IS_RGB(hwc_window_data->info.src_config.format))
-		return 0;
-
-	if (hwc_window_data->info.dst_pos.x > hwc_window_data->hwc_data->output_data->current_mode->hdisplay ||
-		hwc_window_data->info.dst_pos.y > hwc_window_data->hwc_data->output_data->current_mode->vdisplay)
-		return 0;
-
-	if (hwc_window_data->info.src_config.pos.w < MIN_WIDTH || hwc_window_data->info.src_config.pos.w % 2)
-		return 0;
-
-	return 1;
-}
-
-static tbm_surface_queue_h
-_drm_hwc_window_get_tbm_buffer_queue(tdm_hwc_window *hwc_window, tdm_error *error)
-{
-	tdm_drm_hwc_window_data *hwc_window_data = NULL;
-	tbm_surface_queue_h tqueue = NULL;
-	int width, height;
-	tbm_format format;
-
-	if (error)
-		*error = TDM_ERROR_INVALID_PARAMETER;
-
-	RETURN_VAL_IF_FAIL(hwc_window != NULL, NULL);
-
-	hwc_window_data = hwc_window;
-
-	width = hwc_window_data->info.src_config.size.h;
-	height = hwc_window_data->info.src_config.size.v;
-	format = hwc_window_data->info.src_config.format;
-
-	tqueue = tbm_surface_queue_create(NUM_BUFFERS, width, height, format, TBM_BO_SCANOUT);
-	if (error)
-		*error = TDM_ERROR_OPERATION_FAILED;
-	RETURN_VAL_IF_FAIL(tqueue != NULL, NULL);
-
-	if (error)
-		*error = TDM_ERROR_NONE;
-
-	return tqueue;
-}
-
-static tdm_error
-_drm_hwc_layer_attach_window(tdm_drm_layer_data *layer_data, tdm_drm_hwc_window_data *hwc_window_data)
-{
-	tdm_error ret = TDM_ERROR_NONE;
-
-	RETURN_VAL_IF_FAIL(layer_data, TDM_ERROR_OPERATION_FAILED);
-
-	if (hwc_window_data == NULL || hwc_window_data->surface == NULL) {
-		if (layer_data->display_buffer)
-			ret = drm_layer_unset_buffer(layer_data);
-		RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
-	} else {
-		ret = drm_layer_set_info((tdm_layer *)layer_data, (tdm_info_layer *)&(hwc_window_data->info));
-		RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
-		RETURN_VAL_IF_FAIL(hwc_window_data->surface != NULL, TDM_ERROR_INVALID_PARAMETER);
-		ret = drm_layer_set_buffer(layer_data, hwc_window_data->surface);
-		RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
-	}
-
-	return ret;
-}
-
-static tdm_error
-_drm_hwc_prepare_commit(tdm_drm_hwc_data *hwc_data)
-{
-	tdm_drm_hwc_window_data *hwc_window_data = NULL;
-	tdm_drm_layer_data *layer_data = NULL;
-	int use_layers_zpos[NUM_LAYERS] = {0,};
-	int lzpos = 0;
-
-	/* set target hwc window to the layer */
-	if (hwc_data->need_target_window) {
-		layer_data = drm_output_data_get_layer_data(hwc_data->output_data, hwc_data->target_hwc_window->lzpos);
-		_drm_hwc_layer_attach_window(layer_data, hwc_data->target_hwc_window);
-		use_layers_zpos[hwc_data->target_hwc_window->lzpos] = 1;
-	}
-
-	/* set the hwc_windows to the layers */
-	LIST_FOR_EACH_ENTRY_REV(hwc_window_data, &hwc_data->hwc_window_list, link) {
-		if (hwc_window_data->validated_type == TDM_HWC_WIN_COMPOSITION_NONE ||
-			hwc_window_data->validated_type == TDM_HWC_WIN_COMPOSITION_CLIENT) {
-
-			if (hwc_window_data->cursor_img_surface)
-				_drm_hwc_cursor_buffer_unset(hwc_window_data);
-
-			continue;
-		}
-
-		if (hwc_window_data == hwc_data->target_hwc_window)
-			continue;
-
-		/* set the cursor buffer HERE if it needs */
-		if (hwc_window_data->validated_type == TDM_HWC_WIN_COMPOSITION_CURSOR)
-			_drm_hwc_cursor_buffer_set(hwc_data, hwc_window_data);
-
-		layer_data = drm_output_data_get_layer_data(hwc_data->output_data, hwc_window_data->lzpos);
-		_drm_hwc_layer_attach_window(layer_data, hwc_window_data);
-		use_layers_zpos[hwc_window_data->lzpos] = 1;
-	}
-
-	/* unset the unused layers */
-	for (lzpos = 0; lzpos < NUM_LAYERS; lzpos++) {
-		if (use_layers_zpos[lzpos])
-			continue;
-
-		layer_data = drm_output_data_get_layer_data(hwc_data->output_data, lzpos);
-		if (!layer_data)
-			continue;
-
-		_drm_hwc_layer_attach_window(layer_data, NULL);
-	}
-
-	/* for debug */
-	for (lzpos = NUM_LAYERS -1 ; lzpos >= 0; lzpos--) {
-		if (use_layers_zpos[lzpos])
-			TDM_INFO(" lzpos(%d) : %s", lzpos, use_layers_zpos[lzpos] ? "SET" : "UNSET");
-	}
-
-	return TDM_ERROR_NONE;
-}
-
-/* assign the validated_type to the composited_wnds
- * assign the layer_zpos to the composited_wnds
- */
-static void
-_drm_hwc_apply_policy(tdm_drm_hwc_data *hwc_data , tdm_hwc_window **composited_wnds, uint32_t num_wnds)
-{
-	tdm_drm_hwc_window_data *hwc_window_data = NULL;
-	tdm_drm_hwc_window_data **composited_list = NULL;
-	int client_count = 0;
-	int device_count = 0;
-	int video_count = 0;
-	int cursor_count = 0;
-	int ui_lzpos_top = ZPOS_0;
-	int ui_lzpos_bottom = ZPOS_0;
-	int num_ui_layers = NUM_UI_LAYERS;
-	int set_clients_below = 0;
-	int i = 0;
-
-	composited_list = (tdm_drm_hwc_window_data **)composited_wnds;
-
-	/* initialize the need_target_window */
-	hwc_data->need_target_window = 0;
-
-	/* initialize the validated_types */
-	LIST_FOR_EACH_ENTRY_REV(hwc_window_data, &hwc_data->hwc_window_list, link) {
-		if (hwc_window_data->validated_type != TDM_HWC_WIN_COMPOSITION_NONE)
-			hwc_window_data->validated_type = TDM_HWC_WIN_COMPOSITION_NONE;
-	}
-
-	/* use the target_window to commit when there is no window. */
-	if (num_wnds == 0) {
-		hwc_data->need_target_window = 1;
-		hwc_data->target_hwc_window->lzpos = ui_lzpos_bottom;
-		return;
-	}
-
-	/* 1. first check validate_type without target_window */
-	for (i = 0; i < num_wnds; i++) {
-		switch (composited_list[i]->client_type) {
-		case TDM_HWC_WIN_COMPOSITION_VIDEO:
-			composited_list[i]->validated_type = TDM_HWC_WIN_COMPOSITION_VIDEO;
-			video_count++;
-			continue;
-		case TDM_HWC_WIN_COMPOSITION_CURSOR:
-			if (set_clients_below) break;
-			if (cursor_count > 0) break;
-
-			composited_list[i]->validated_type = TDM_HWC_WIN_COMPOSITION_CURSOR;
-			cursor_count++;
-			continue;
-		case TDM_HWC_WIN_COMPOSITION_DEVICE:
-			if (set_clients_below) break;
-			if (num_ui_layers <= 0) break;
-			if (!_drm_hwc_window_can_set_on_hw_layer(composited_list[i])) break;
-
-			composited_list[i]->validated_type = TDM_HWC_WIN_COMPOSITION_DEVICE;
-			device_count++;
-			num_ui_layers--;
-			continue;
-		default:
-			break;
-		}
-
-		composited_list[i]->validated_type = TDM_HWC_WIN_COMPOSITION_CLIENT;
-		client_count++;
-		set_clients_below = 1;
-	}
-
-	/* 2. check need target window and set ui_lzpos top and bottom */
-	num_ui_layers = NUM_UI_LAYERS;
-
-	if (video_count > 0) {
-		ui_lzpos_bottom++;
-		num_ui_layers--;
-	}
-
-	if (client_count > 0) {
-		ui_lzpos_bottom++;
-		num_ui_layers--;
-		hwc_data->need_target_window = 1;
-		hwc_data->target_hwc_window->lzpos = ui_lzpos_bottom - 1;
-	}
-
-	if (num_ui_layers > device_count)
-		ui_lzpos_top = ui_lzpos_bottom + device_count - 1;
-
-	/* 3. set lzpos and modify validate_type with target_window */
-	for (i = 0; i < num_wnds; i++) {
-		switch (composited_list[i]->validated_type) {
-		case TDM_HWC_WIN_COMPOSITION_VIDEO:
-			composited_list[i]->lzpos = ZPOS_VIDEO1;
-			continue;
-		case TDM_HWC_WIN_COMPOSITION_CURSOR:
-			composited_list[i]->lzpos = ZPOS_CURSOR;
-			continue;
-		case TDM_HWC_WIN_COMPOSITION_DEVICE:
-			if (num_ui_layers <= 0) break;
-			composited_list[i]->lzpos = ui_lzpos_top;
-			ui_lzpos_top--;
-			num_ui_layers--;
-			continue;
-		default:
-			break;
-		}
-
-		composited_list[i]->validated_type = TDM_HWC_WIN_COMPOSITION_CLIENT;
-		composited_list[i]->lzpos = ZPOS_NONE;
-	}
-}
-
-static int
-_drm_hwc_get_changed_number(tdm_drm_hwc_data *hwc_data)
-{
-	int num = 0;
-	tdm_drm_hwc_window_data *hwc_window_data = NULL;
-
-	LIST_FOR_EACH_ENTRY(hwc_window_data, &hwc_data->hwc_window_list, link) {
-		if (hwc_window_data->client_type == TDM_HWC_WIN_COMPOSITION_NONE)
-			continue;
-
-		if (hwc_window_data->client_type != hwc_window_data->validated_type)
-			num++;
-	}
-
-	return num;
-}
-
-tdm_hwc_window *
-_drm_hwc_create_window(tdm_hwc *hwc, tdm_hwc_window_info *info, tdm_error *error)
-{
-	tdm_drm_hwc_data *hwc_data = hwc;
-	tdm_drm_hwc_window_data *hwc_window_data = NULL;
-
-	if (error)
-		*error = TDM_ERROR_NONE;
-
-	if (!hwc_data) {
-		TDM_ERR("invalid params");
-		if (error)
-			*error = TDM_ERROR_INVALID_PARAMETER;
-		return NULL;
-	}
-
-	hwc_window_data = calloc(1, sizeof(tdm_drm_hwc_window_data));
-	if (!hwc_window_data) {
-		TDM_ERR("alloc failed");
-		if (error)
-			*error = TDM_ERROR_OUT_OF_MEMORY;
-		return NULL;
-	}
-
-	hwc_window_data->hwc_data = hwc_data;
-
-	if (info)
-		memcpy(&hwc_window_data->info, info, sizeof(tdm_hwc_window_info));
-
-	LIST_INITHEAD(&hwc_window_data->link);
-
-	return hwc_window_data;
-}
-
-tdm_hwc_window *
-drm_hwc_create_window(tdm_hwc *hwc, tdm_error *error)
-{
-	tdm_drm_hwc_data *hwc_data = hwc;
-	tdm_drm_hwc_window_data *hwc_window_data = NULL;
-
-	RETURN_VAL_IF_FAIL(hwc_data, NULL);
-
-	hwc_window_data = _drm_hwc_create_window(hwc_data, NULL, error);
-	RETURN_VAL_IF_FAIL(hwc_window_data, NULL);
-
-	LIST_ADDTAIL(&hwc_window_data->link, &hwc_data->hwc_window_list);
-
-	TDM_INFO("hwc_window(%p) create", hwc_window_data);
-	if (error)
-		*error = TDM_ERROR_NONE;
-
-	return hwc_window_data;
-}
-
-tdm_error
-drm_hwc_get_video_supported_formats(tdm_hwc *hwc, const tbm_format **formats, int *count)
-{
-	RETURN_VAL_IF_FAIL(hwc != NULL, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(formats != NULL, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(count != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-	// TODO: fix these formats.
-	*formats = hwc_window_video_formats;
-	*count = sizeof(hwc_window_video_formats) / sizeof(tbm_format);
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_get_capabilities(tdm_hwc *hwc, tdm_hwc_capability *capabilities)
-{
-	RETURN_VAL_IF_FAIL(hwc != NULL, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(capabilities != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-	*capabilities |= TDM_HWC_CAPABILITY_VIDEO_SCALE;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_get_available_properties(tdm_hwc *hwc, const tdm_prop **props, int *count)
-{
-	tdm_drm_hwc_data *hwc_data = hwc;
-
-	RETURN_VAL_IF_FAIL(hwc_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(props != NULL, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(count != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-	*props = NULL;
-	*count = 0;
-
-	return TDM_ERROR_NONE;
-}
-
-tbm_surface_queue_h
-drm_hwc_get_client_target_buffer_queue(tdm_hwc *hwc, tdm_error *error)
-{
-	tdm_drm_hwc_data *hwc_data = hwc;
-	tbm_surface_queue_h tqueue = NULL;
-
-	if (error)
-		*error = TDM_ERROR_INVALID_PARAMETER;
-
-	RETURN_VAL_IF_FAIL(hwc_data != NULL, NULL);
-
-	if (hwc_data->target_hwc_window == NULL) {
-		if (error)
-			*error = TDM_ERROR_OPERATION_FAILED;
-		return NULL;
-	}
-
-	tqueue = _drm_hwc_window_get_tbm_buffer_queue(hwc_data->target_hwc_window, error);
-	RETURN_VAL_IF_FAIL(tqueue, NULL);
-
-	if (error)
-		*error = TDM_ERROR_NONE;
-
-	return tqueue;
-}
-
-tdm_error
-drm_hwc_set_client_target_buffer(tdm_hwc *hwc, tbm_surface_h buffer, tdm_region damage)
-{
-	tdm_drm_hwc_data *hwc_data = hwc;
-	tdm_error err;
-
-	RETURN_VAL_IF_FAIL(hwc_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(hwc_data->target_hwc_window  != NULL, TDM_ERROR_OPERATION_FAILED);
-
-	err = drm_hwc_window_set_buffer(hwc_data->target_hwc_window, buffer);
-	RETURN_VAL_IF_FAIL(err == TDM_ERROR_NONE, err);
-
-	err = drm_hwc_window_set_buffer_damage(hwc_data->target_hwc_window, damage);
-	RETURN_VAL_IF_FAIL(err == TDM_ERROR_NONE, err);
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_validate(tdm_hwc *hwc, tdm_hwc_window **composited_wnds, uint32_t num_wnds, uint32_t *num_types)
-{
-	tdm_drm_hwc_data *hwc_data = hwc;
-	tdm_drm_output_data *output_data;
-
-	RETURN_VAL_IF_FAIL(hwc_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(num_types != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-	output_data = hwc_data->output_data;
-	RETURN_VAL_IF_FAIL(output_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-	TDM_INFO(" ==============Validate=================================");
-
-	_drm_hwc_apply_policy(hwc_data, composited_wnds, num_wnds);
-
-	*num_types = _drm_hwc_get_changed_number(hwc_data);
-
-	_print_validate_result(hwc_data, composited_wnds, num_wnds);
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_get_changed_composition_types(tdm_hwc *hwc, uint32_t *num_elements,
-				tdm_hwc_window **hwc_wnds, tdm_hwc_window_composition *composition_types)
-{
-	tdm_drm_hwc_data *hwc_data = hwc;
-	tdm_drm_hwc_window_data *hwc_window_data = NULL;
-	int num = 0;
-
-	RETURN_VAL_IF_FAIL(hwc_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(num_elements != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-	if ((hwc_wnds == NULL) || (composition_types == NULL)) {
-		*num_elements = _drm_hwc_get_changed_number(hwc_data);
-		return TDM_ERROR_NONE;
-	}
-
-	LIST_FOR_EACH_ENTRY_REV(hwc_window_data, &hwc_data->hwc_window_list, link) {
-		if (hwc_window_data->client_type == TDM_HWC_WIN_COMPOSITION_NONE)
-			continue;
-
-		if (num >= *num_elements)
-			break;
-
-		if (hwc_window_data->client_type != hwc_window_data->validated_type) {
-			composition_types[num] = hwc_window_data->validated_type;
-			hwc_wnds[num] = hwc_window_data;
-			num++;
-		}
-	}
-
-	/* set real num of changed composition types */
-	*num_elements = num;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_accept_validation(tdm_hwc *hwc)
-{
-	tdm_drm_hwc_data *hwc_data = hwc;
-	tdm_error ret = TDM_ERROR_NONE;
-
-	RETURN_VAL_IF_FAIL(hwc_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(hwc_data->output_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-	TDM_INFO(" ==============Accept Changes Done=================================");
-
-	if (hwc_data->output_data->current_dpms != TDM_OUTPUT_DPMS_ON) {
-		TDM_ERR("dpms is not on. do not set buffer");
-		return TDM_ERROR_BAD_REQUEST;
-	}
-
-	ret = _drm_hwc_prepare_commit(hwc_data);
-	RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_commit(tdm_hwc *hwc, int sync, void *user_data)
-{
-	tdm_drm_hwc_data *hwc_data = hwc;
-	tdm_drm_output_data *output_data = NULL;
-	tdm_error ret;
-
-	RETURN_VAL_IF_FAIL(hwc_data, TDM_ERROR_INVALID_PARAMETER);
-
-	output_data = hwc_data->output_data;
-	RETURN_VAL_IF_FAIL(output_data, TDM_ERROR_INVALID_PARAMETER);
-
-	TDM_INFO(" ==============COMMIT=================================");
-
-	if (hwc_data->output_data->current_dpms != TDM_OUTPUT_DPMS_ON) {
-		TDM_ERR("dpms is not on. do not commit");
-		return TDM_ERROR_BAD_REQUEST;
-	}
-
-	ret = drm_output_commit(output_data, sync, user_data);
-	RETURN_VAL_IF_FAIL(ret == TDM_ERROR_NONE, ret);
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_set_commit_handler(tdm_hwc *hwc, tdm_hwc_commit_handler func)
-{
-	tdm_drm_hwc_data *hwc_data = hwc;
-
-	RETURN_VAL_IF_FAIL(hwc_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(func, TDM_ERROR_INVALID_PARAMETER);
-
-	hwc_data->commit_func = func;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_target_window_set_info(tdm_drm_hwc_data *hwc_data, int width, int height)
-{
-	tdm_hwc_window_info info = {0};
-	tdm_drm_hwc_window_data *target_hwc_window;
-	tdm_error ret = TDM_ERROR_NONE;
-
-	RETURN_VAL_IF_FAIL(hwc_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(hwc_data->target_hwc_window, TDM_ERROR_INVALID_PARAMETER);
-
-	target_hwc_window = hwc_data->target_hwc_window;
-
-	info.dst_pos.x = 0;
-	info.dst_pos.y = 0;
-	info.dst_pos.w = width;
-	info.dst_pos.h = height;
-
-	info.src_config.pos.x = 0;
-	info.src_config.pos.y = 0;
-	info.src_config.pos.w = width;
-	info.src_config.pos.h = height;
-
-	info.src_config.size.h = width;
-	info.src_config.size.v = height;
-	info.src_config.format = TBM_FORMAT_ARGB8888;
-
-	ret = drm_hwc_window_set_info(target_hwc_window, &info);
-	if (ret != TDM_ERROR_NONE) {
-		TDM_ERR("set info target hwc window failed (%d)", ret);
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_initailize_target_window(tdm_drm_hwc_data *hwc_data)
-{
-	tdm_hwc_window_info info = {0};
-	tdm_error ret = TDM_ERROR_NONE;
-	tdm_drm_hwc_window_data *target_hwc_window;
-
-	RETURN_VAL_IF_FAIL(hwc_data, TDM_ERROR_INVALID_PARAMETER);
-
-	info.dst_pos.x = 0;
-	info.dst_pos.y = 0;
-	info.dst_pos.w = 2;
-	info.dst_pos.h = 1;
-
-	info.src_config.pos.x = 0;
-	info.src_config.pos.y = 0;
-	info.src_config.pos.w = 2;
-	info.src_config.pos.h = 1;
-
-	info.src_config.size.h = 2;
-	info.src_config.size.v = 1;
-	info.src_config.format = TBM_FORMAT_ARGB8888;
-
-	target_hwc_window = _drm_hwc_create_window(hwc_data, &info, &ret);
-	if (ret != TDM_ERROR_NONE) {
-		TDM_ERR("create target hwc window failed (%d)", ret);
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	if (hwc_data->target_hwc_window)
-		drm_hwc_window_destroy(hwc_data->target_hwc_window);
-
-	hwc_data->target_hwc_window = target_hwc_window;
-	hwc_data->need_set_crtc = 1;
-
-	return TDM_ERROR_NONE;
-}
diff --git a/src/libtdm-drm/tdm_drm_hwc.h b/src/libtdm-drm/tdm_drm_hwc.h
deleted file mode 100644
index f8808f1..0000000
--- a/src/libtdm-drm/tdm_drm_hwc.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/**************************************************************************
-
-libtdm_drm
-
-Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
-
-Contact: SooChan Lim <sc1.lim@samsung.com>
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sub license, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice (including the
-next paragraph) shall be included in all copies or substantial portions
-of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
-IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
-ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-**************************************************************************/
-
-#ifndef _TDM_DRM_HWC_H_
-#define _TDM_DRM_HWC_H_
-
-#include "tdm_drm.h"
-
-tdm_error drm_hwc_initailize_target_window(tdm_drm_hwc_data *hwc_data);
-tdm_error drm_hwc_target_window_set_info(tdm_drm_hwc_data *hwc_data, int width, int height);
-
-#endif /* _TDM_DRM_HWC_H_ */
diff --git a/src/libtdm-drm/tdm_drm_hwc_window.c b/src/libtdm-drm/tdm_drm_hwc_window.c
deleted file mode 100644
index 017fa59..0000000
--- a/src/libtdm-drm/tdm_drm_hwc_window.c
+++ /dev/null
@@ -1,184 +0,0 @@
-/**************************************************************************
-
-libtdm_drm
-
-Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
-
-Contact: SooChan Lim <sc1.lim@samsung.com>
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sub license, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice (including the
-next paragraph) shall be included in all copies or substantial portions
-of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
-IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
-ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-**************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "tdm_drm.h"
-
-void
-drm_hwc_window_destroy(tdm_hwc_window *hwc_window)
-{
-	tdm_drm_hwc_window_data *hwc_window_data = hwc_window;
-
-	RETURN_IF_FAIL(hwc_window_data != NULL);
-
-	LIST_DEL(&hwc_window_data->link);
-
-	free(hwc_window_data);
-}
-
-tdm_error
-drm_hwc_window_set_composition_type(tdm_hwc_window *hwc_window,
-									tdm_hwc_window_composition comp_type)
-{
-	tdm_drm_hwc_window_data *hwc_window_data = hwc_window;
-	tdm_drm_hwc_data *hwc_data = hwc_window_data->hwc_data;
-
-	RETURN_VAL_IF_FAIL(hwc_window_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(hwc_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-	/* change the client_type when it is different from one which has before */
-	if (hwc_window_data->client_type == comp_type)
-		return TDM_ERROR_NONE;
-
-	hwc_window_data->client_type = comp_type;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_window_set_buffer_damage(tdm_hwc_window *hwc_window, tdm_region damage)
-{
-	tdm_drm_hwc_window_data *hwc_window_data = hwc_window;
-
-	RETURN_VAL_IF_FAIL(hwc_window_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-	//TODO::
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_window_set_info(tdm_hwc_window *hwc_window, tdm_hwc_window_info *info)
-{
-	tdm_drm_hwc_window_data *hwc_window_data = hwc_window;
-	tdm_drm_hwc_data *hwc_data;
-
-	RETURN_VAL_IF_FAIL(hwc_window_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-	hwc_data = hwc_window_data->hwc_data;
-	RETURN_VAL_IF_FAIL(hwc_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(info != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-	if (!memcmp(&hwc_window_data->info, info, sizeof(tdm_hwc_window_info)))
-		return TDM_ERROR_NONE;
-
-	hwc_window_data->info = *info;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_window_set_buffer(tdm_hwc_window *hwc_window, tbm_surface_h surface)
-{
-	tdm_drm_hwc_window_data *hwc_window_data = hwc_window;
-	tdm_error err = TDM_ERROR_OPERATION_FAILED;
-
-	RETURN_VAL_IF_FAIL(hwc_window_data != NULL, err);
-
-	if (hwc_window_data->surface == surface)
-		return TDM_ERROR_NONE;
-
-	hwc_window_data->surface = surface;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_window_set_property(tdm_hwc_window *hwc_window, unsigned int id, tdm_value value)
-{
-	tdm_drm_hwc_window_data *hwc_window_data = hwc_window;
-
-	RETURN_VAL_IF_FAIL(hwc_window_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-	//TODO:
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_window_get_property(tdm_hwc_window *hwc_window, unsigned int id, tdm_value *value)
-{
-	tdm_drm_hwc_window_data *hwc_window_data = hwc_window;
-
-	RETURN_VAL_IF_FAIL(hwc_window_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-	//TODO:
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_window_get_constraints(tdm_hwc_window *hwc_window, int *constraints)
-{
-	tdm_drm_hwc_window_data *hwc_window_data = hwc_window;
-
-	RETURN_VAL_IF_FAIL(hwc_window_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(constraints != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-	// no constraints
-	*constraints = 0;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_window_set_name(tdm_hwc_window *hwc_window, const char *name)
-{
-	tdm_drm_hwc_window_data *hwc_window_data = hwc_window;
-
-	RETURN_VAL_IF_FAIL(hwc_window_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-	if (!name)
-		return TDM_ERROR_NONE;
-
-	snprintf(hwc_window_data->name, TDM_NAME_LEN, "%s", name);
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_hwc_window_set_cursor_image(tdm_hwc_window *hwc_window, int width, int height, int stride, void *ptr)
-{
-	tdm_drm_hwc_window_data *hwc_window_data = hwc_window;
-
-	RETURN_VAL_IF_FAIL(hwc_window_data != NULL, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(hwc_window_data->client_type == TDM_HWC_WIN_COMPOSITION_CURSOR, TDM_ERROR_INVALID_PARAMETER);
-
-	hwc_window_data->cursor_img.width = width;
-	hwc_window_data->cursor_img.height = height;
-	hwc_window_data->cursor_img.stride = stride;
-	hwc_window_data->cursor_img.ptr = ptr;
-
-	hwc_window_data->cursor_img_refresh = 1;
-
-	return TDM_ERROR_NONE;
-}
diff --git a/src/libtdm-drm/tdm_drm_hwc_window.h b/src/libtdm-drm/tdm_drm_hwc_window.h
deleted file mode 100644
index a5df8f2..0000000
--- a/src/libtdm-drm/tdm_drm_hwc_window.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/**************************************************************************
-
-libtdm_drm
-
-Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
-
-Contact: SooChan Lim <sc1.lim@samsung.com>
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sub license, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice (including the
-next paragraph) shall be included in all copies or substantial portions
-of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
-IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
-ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-**************************************************************************/
-
-#ifndef _TDM_DRM_HWC_WINDOW_H_
-#define _TDM_DRM_HWC_WINDOW_H_
-
-#include "tdm_drm.h"
-
-#endif /* _TDM_DRM_HWC_WINDOW_H_ */
\ No newline at end of file
diff --git a/src/libtdm-drm/tdm_drm_pp.c b/src/libtdm-drm/tdm_drm_pp.c
deleted file mode 100644
index c4e5589..0000000
--- a/src/libtdm-drm/tdm_drm_pp.c
+++ /dev/null
@@ -1,440 +0,0 @@
-/**************************************************************************
-
-libtdm_drm
-
-Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
-
-Contact: SooChan Lim <sc1.lim@samsung.com>
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sub license, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice (including the
-next paragraph) shall be included in all copies or substantial portions
-of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
-IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
-ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-**************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <pixman.h>
-
-#include "tdm_drm.h"
-#include "tdm_helper.h"
-
-typedef struct _tdm_drm_pp_buffer {
-	tbm_surface_h src;
-	tbm_surface_h dst;
-
-	struct list_head link;
-} tdm_drm_pp_buffer;
-
-typedef struct _tdm_drm_pp_data {
-	tdm_drm_data *drm_data;
-
-	tdm_info_pp info;
-
-	struct list_head pending_buffer_list;
-
-	tdm_pp_done_handler done_func;
-	void *done_user_data;
-
-	struct list_head link;
-} tdm_drm_pp_data;
-
-
-static tbm_format pp_formats[] = {
-	TBM_FORMAT_ARGB8888,
-	TBM_FORMAT_XRGB8888,
-	TBM_FORMAT_YUV420,
-};
-
-#define NUM_PP_FORMAT   (sizeof(pp_formats) / sizeof(pp_formats[0]))
-
-static int pp_list_init;
-static struct list_head pp_list;
-
-static pixman_format_code_t
-_tdm_drm_pp_pixman_get_format(tbm_format tbmfmt)
-{
-	switch (tbmfmt) {
-	case TBM_FORMAT_ARGB8888:
-		return PIXMAN_a8r8g8b8;
-	case TBM_FORMAT_XRGB8888:
-		return PIXMAN_x8r8g8b8;
-	case TBM_FORMAT_YUV420:
-	case TBM_FORMAT_YVU420:
-		return PIXMAN_yv12;
-	default:
-		return 0;
-	}
-}
-
-int
-_tdm_drm_pp_pixman_convert(pixman_op_t op,
-						   unsigned char *srcbuf, unsigned char *dstbuf,
-						   pixman_format_code_t src_format, pixman_format_code_t dst_format,
-						   int sbw, int sbh, int sx, int sy, int sw, int sh,
-						   int dbw, int dbh, int dx, int dy, int dw, int dh,
-						   int rotate, int hflip, int vflip)
-{
-	pixman_image_t	*src_img;
-	pixman_image_t	*dst_img;
-	struct pixman_f_transform ft;
-	pixman_transform_t transform;
-	int				src_stride, dst_stride;
-	int				src_bpp;
-	int				dst_bpp;
-	double			 scale_x, scale_y;
-	int				rotate_step;
-	int				ret = 0;
-
-	RETURN_VAL_IF_FAIL(srcbuf != NULL, 0);
-	RETURN_VAL_IF_FAIL(dstbuf != NULL, 0);
-
-	TDM_DBG("src(%dx%d: %d,%d %dx%d) dst(%dx%d: %d,%d %dx%d) flip(%d,%d), rot(%d)",
-			sbw, sbh, sx, sy, sw, sh, dbw, dbh, dx, dy, dw, dh, hflip, vflip, rotate);
-
-	src_bpp = PIXMAN_FORMAT_BPP(src_format) / 8;
-	RETURN_VAL_IF_FAIL(src_bpp > 0, 0);
-
-	dst_bpp = PIXMAN_FORMAT_BPP(dst_format) / 8;
-	RETURN_VAL_IF_FAIL(dst_bpp > 0, 0);
-
-	rotate_step = (rotate + 360) / 90 % 4;
-
-	src_stride = sbw * src_bpp;
-	dst_stride = dbw * dst_bpp;
-
-	src_img = pixman_image_create_bits(src_format, sbw, sbh, (uint32_t *)srcbuf,
-									   src_stride);
-	dst_img = pixman_image_create_bits(dst_format, dbw, dbh, (uint32_t *)dstbuf,
-									   dst_stride);
-
-	GOTO_IF_FAIL(src_img != NULL, CANT_CONVERT);
-	GOTO_IF_FAIL(dst_img != NULL, CANT_CONVERT);
-
-	pixman_f_transform_init_identity(&ft);
-
-	if (hflip) {
-		pixman_f_transform_scale(&ft, NULL, -1, 1);
-		pixman_f_transform_translate(&ft, NULL, dw, 0);
-	}
-
-	if (vflip) {
-		pixman_f_transform_scale(&ft, NULL, 1, -1);
-		pixman_f_transform_translate(&ft, NULL, 0, dh);
-	}
-
-	if (rotate_step > 0) {
-		int c = 0, s = 0, tx = 0, ty = 0;
-		switch (rotate_step) {
-		case 1: /* 90 degrees */
-			s = -1, tx = -dw;
-			break;
-		case 2: /* 180 degrees */
-			c = -1, tx = -dw, ty = -dh;
-			break;
-		case 3: /* 270 degrees */
-			s = 1, ty = -dh;
-			break;
-		}
-
-		pixman_f_transform_translate(&ft, NULL, tx, ty);
-		pixman_f_transform_rotate(&ft, NULL, c, s);
-	}
-
-	if (rotate_step % 2 == 0) {
-		scale_x = (double)sw / dw;
-		scale_y = (double)sh / dh;
-	} else {
-		scale_x = (double)sw / dh;
-		scale_y = (double)sh / dw;
-	}
-
-	pixman_f_transform_scale(&ft, NULL, scale_x, scale_y);
-	pixman_f_transform_translate(&ft, NULL, sx, sy);
-
-	pixman_transform_from_pixman_f_transform(&transform, &ft);
-	pixman_image_set_transform(src_img, &transform);
-
-	pixman_image_composite(op, src_img, NULL, dst_img, 0, 0, 0, 0, dx, dy, dw, dh);
-
-	ret = 1;
-
-CANT_CONVERT:
-	if (src_img)
-		pixman_image_unref(src_img);
-	if (dst_img)
-		pixman_image_unref(dst_img);
-
-	return ret;
-}
-
-static tdm_error
-_tdm_drm_pp_convert(tdm_drm_pp_buffer *buffer, tdm_info_pp *info)
-{
-	tbm_surface_info_s src_info, dst_info;
-	pixman_format_code_t src_format, dst_format;
-	int sbw, dbw;
-	int rotate = 0, hflip = 0;
-	tbm_bo bo = NULL;
-	int bo_cnt = 0;
-	int bo_size = 0;
-
-	RETURN_VAL_IF_FAIL(buffer != NULL, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(buffer->src != NULL, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(buffer->dst != NULL, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(info != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-	bo_cnt = tbm_surface_internal_get_num_bos(buffer->src);
-	RETURN_VAL_IF_FAIL(bo_cnt == 1, TDM_ERROR_INVALID_PARAMETER);
-
-	bo_cnt = tbm_surface_internal_get_num_bos(buffer->dst);
-	RETURN_VAL_IF_FAIL(bo_cnt == 1, TDM_ERROR_INVALID_PARAMETER);
-
-	bo = tbm_surface_internal_get_bo(buffer->src, 0);
-	RETURN_VAL_IF_FAIL(bo != NULL, TDM_ERROR_INVALID_PARAMETER);
-
-	bo_size = tbm_bo_size(bo);
-
-	/* not handle buffers which have 2 more gem handles */
-
-	memset(&src_info, 0, sizeof(tbm_surface_info_s));
-	tbm_surface_map(buffer->src, TBM_OPTION_READ, &src_info);
-	GOTO_IF_FAIL(src_info.planes[0].ptr != NULL, fail_convert);
-
-	memset(&dst_info, 0, sizeof(tbm_surface_info_s));
-	tbm_surface_map(buffer->dst, TBM_OPTION_WRITE, &dst_info);
-	GOTO_IF_FAIL(dst_info.planes[0].ptr != NULL, fail_convert);
-
-	src_format = _tdm_drm_pp_pixman_get_format(src_info.format);
-	GOTO_IF_FAIL(src_format > 0, fail_convert);
-	dst_format = _tdm_drm_pp_pixman_get_format(dst_info.format);
-	GOTO_IF_FAIL(dst_format > 0, fail_convert);
-
-	GOTO_IF_FAIL(pixman_format_supported_destination(dst_format), fail_convert);
-
-	if (src_info.format == TBM_FORMAT_YUV420) {
-		if (dst_info.format == TBM_FORMAT_XRGB8888)
-			dst_format = PIXMAN_x8b8g8r8;
-		else if (dst_info.format == TBM_FORMAT_ARGB8888)
-			dst_format = PIXMAN_a8b8g8r8;
-		else if (dst_info.format == TBM_FORMAT_YVU420) {
-			TDM_ERR("can't convert %c%c%c%c to %c%c%c%c",
-					FOURCC_STR(src_info.format), FOURCC_STR(dst_info.format));
-			goto fail_convert;
-		}
-	}
-	/* need checking for other formats also? */
-
-	if (IS_RGB(src_info.format))
-		sbw = src_info.planes[0].stride >> 2;
-	else
-		sbw = src_info.planes[0].stride;
-
-	if (IS_RGB(dst_info.format))
-		dbw = dst_info.planes[0].stride >> 2;
-	else
-		dbw = dst_info.planes[0].stride;
-
-	rotate = (info->transform % 4) * 90;
-	if (info->transform >= TDM_TRANSFORM_FLIPPED)
-		hflip = 1;
-
-	if (bo_size < src_info.planes[0].stride * src_info.height) {
-		TDM_WRN("bo size(%d) is smaller than the expected size(%d)",
-				bo_size, src_info.planes[0].stride * src_info.height);
-		goto fail_convert;
-	}
-
-	_tdm_drm_pp_pixman_convert(PIXMAN_OP_SRC,
-							   src_info.planes[0].ptr, dst_info.planes[0].ptr,
-							   src_format, dst_format,
-							   sbw, src_info.height,
-							   info->src_config.pos.x, info->src_config.pos.y,
-							   info->src_config.pos.w, info->src_config.pos.h,
-							   dbw, dst_info.height,
-							   info->dst_config.pos.x, info->dst_config.pos.y,
-							   info->dst_config.pos.w, info->dst_config.pos.h,
-							   rotate, hflip, 0);
-	tbm_surface_unmap(buffer->src);
-	tbm_surface_unmap(buffer->dst);
-
-	return TDM_ERROR_NONE;
-fail_convert:
-	tbm_surface_unmap(buffer->src);
-	tbm_surface_unmap(buffer->dst);
-	return TDM_ERROR_OPERATION_FAILED;
-}
-
-tdm_error
-tdm_drm_pp_get_capability(tdm_drm_data *drm_data, tdm_caps_pp *caps)
-{
-	int i;
-
-	if (!caps) {
-		TDM_ERR("invalid params");
-		return TDM_ERROR_INVALID_PARAMETER;
-	}
-
-	caps->capabilities = TDM_PP_CAPABILITY_SYNC;
-
-	caps->format_count = NUM_PP_FORMAT;
-
-	/* will be freed in frontend */
-	caps->formats = calloc(1, sizeof pp_formats);
-	if (!caps->formats) {
-		TDM_ERR("alloc failed");
-		return TDM_ERROR_OUT_OF_MEMORY;
-	}
-	for (i = 0; i < caps->format_count; i++)
-		caps->formats[i] = pp_formats[i];
-
-	caps->min_w = 16;
-	caps->min_h = 8;
-	caps->max_w = -1;   /* not defined */
-	caps->max_h = -1;
-	caps->preferred_align = 16;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_pp *
-tdm_drm_pp_create(tdm_drm_data *drm_data, tdm_error *error)
-{
-	tdm_drm_pp_data *pp_data = calloc(1, sizeof(tdm_drm_pp_data));
-	if (!pp_data) {
-		TDM_ERR("alloc failed");
-		if (error)
-			*error = TDM_ERROR_OUT_OF_MEMORY;
-		return NULL;
-	}
-
-	pp_data->drm_data = drm_data;
-
-	LIST_INITHEAD(&pp_data->pending_buffer_list);
-
-	if (!pp_list_init) {
-		pp_list_init = 1;
-		LIST_INITHEAD(&pp_list);
-	}
-	LIST_ADDTAIL(&pp_data->link, &pp_list);
-
-	return pp_data;
-}
-
-void
-drm_pp_destroy(tdm_pp *pp)
-{
-	tdm_drm_pp_data *pp_data = pp;
-	tdm_drm_pp_buffer *b = NULL, *bb = NULL;
-
-	if (!pp_data)
-		return;
-
-	LIST_FOR_EACH_ENTRY_SAFE(b, bb, &pp_data->pending_buffer_list, link) {
-		LIST_DEL(&b->link);
-		free(b);
-	}
-
-	LIST_DEL(&pp_data->link);
-
-	free(pp_data);
-}
-
-tdm_error
-drm_pp_set_info(tdm_pp *pp, tdm_info_pp *info)
-{
-	tdm_drm_pp_data *pp_data = pp;
-
-	RETURN_VAL_IF_FAIL(pp_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(info, TDM_ERROR_INVALID_PARAMETER);
-
-	pp_data->info = *info;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_pp_attach(tdm_pp *pp, tbm_surface_h src, tbm_surface_h dst)
-{
-	tdm_drm_pp_data *pp_data = pp;
-	tdm_drm_pp_buffer *buffer;
-
-	RETURN_VAL_IF_FAIL(pp_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(src, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(dst, TDM_ERROR_INVALID_PARAMETER);
-
-	if (tbm_surface_internal_get_num_bos(src) > 1 ||
-		tbm_surface_internal_get_num_bos(dst) > 1) {
-		TDM_ERR("can't handle multiple tbm bos");
-		return TDM_ERROR_OPERATION_FAILED;
-	}
-
-	buffer = calloc(1, sizeof(tdm_drm_pp_buffer));
-	if (!buffer) {
-		TDM_ERR("alloc failed");
-		return TDM_ERROR_NONE;
-	}
-
-	LIST_ADDTAIL(&buffer->link, &pp_data->pending_buffer_list);
-
-	buffer->src = src;
-	buffer->dst = dst;
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_pp_commit(tdm_pp *pp)
-{
-	tdm_drm_pp_data *pp_data = pp;
-	tdm_drm_pp_buffer *b = NULL, *bb = NULL;
-
-	RETURN_VAL_IF_FAIL(pp_data, TDM_ERROR_INVALID_PARAMETER);
-
-	LIST_FOR_EACH_ENTRY_SAFE(b, bb, &pp_data->pending_buffer_list, link) {
-		LIST_DEL(&b->link);
-
-		_tdm_drm_pp_convert(b, &pp_data->info);
-
-		if (pp_data->done_func)
-			pp_data->done_func(pp_data,
-							   b->src,
-							   b->dst,
-							   pp_data->done_user_data);
-		free(b);
-	}
-
-	return TDM_ERROR_NONE;
-}
-
-tdm_error
-drm_pp_set_done_handler(tdm_pp *pp, tdm_pp_done_handler func, void *user_data)
-{
-	tdm_drm_pp_data *pp_data = pp;
-
-	RETURN_VAL_IF_FAIL(pp_data, TDM_ERROR_INVALID_PARAMETER);
-	RETURN_VAL_IF_FAIL(func, TDM_ERROR_INVALID_PARAMETER);
-
-	pp_data->done_func = func;
-	pp_data->done_user_data = user_data;
-
-	return TDM_ERROR_NONE;
-}
diff --git a/src/libtdm-drm/tdm_drm_pp.h b/src/libtdm-drm/tdm_drm_pp.h
deleted file mode 100644
index 3c62d7b..0000000
--- a/src/libtdm-drm/tdm_drm_pp.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/**************************************************************************
-
-libtdm_drm
-
-Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
-
-Contact: SooChan Lim <sc1.lim@samsung.com>
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sub license, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice (including the
-next paragraph) shall be included in all copies or substantial portions
-of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
-IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
-ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-**************************************************************************/
-
-#ifndef _TDM_DRM_PP_H_
-#define _TDM_DRM_PP_H_
-
-#include "tdm_drm.h"
-
-tdm_error	tdm_drm_pp_get_capability(tdm_drm_data *drm_data, tdm_caps_pp *caps);
-tdm_pp*	  tdm_drm_pp_create(tdm_drm_data *drm_data, tdm_error *error);
-void		 tdm_drm_pp_handler(unsigned int prop_id, unsigned int *buf_idx,
-								   unsigned int tv_sec, unsigned int tv_usec, void *data);
-void		 tdm_drm_pp_cb(int fd, unsigned int prop_id, unsigned int *buf_idx,
-							  unsigned int tv_sec, unsigned int tv_usec,
-							  void *user_data);
-#endif /* _TDM_DRM_PP_H_ */
diff --git a/src/libtdm-drm/tdm_drm_types.h b/src/libtdm-drm/tdm_drm_types.h
deleted file mode 100644
index 5063781..0000000
--- a/src/libtdm-drm/tdm_drm_types.h
+++ /dev/null
@@ -1,268 +0,0 @@
-/**************************************************************************
-
-libtdm_drm
-
-Copyright 2015 Samsung Electronics co., Ltd. All Rights Reserved.
-
-Contact: SooChan Lim <sc1.lim@samsung.com>
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sub license, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice (including the
-next paragraph) shall be included in all copies or substantial portions
-of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
-IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
-ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-**************************************************************************/
-
-#ifndef _TDM_DRM_TYPES_H_
-#define _TDM_DRM_TYPES_H_
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <pthread.h>
-#include <errno.h>
-#include <unistd.h>
-#include <limits.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <fcntl.h>
-
-#include <linux/fb.h>
-#include <xf86drm.h>
-#include <xf86drmMode.h>
-#include <tbm_surface.h>
-#include <tbm_surface_internal.h>
-#include <tdm_backend.h>
-#include <tdm_log.h>
-#include <tdm_list.h>
-#include <drm_fourcc.h>
-#include <tdm_helper.h>
-
-#if HAVE_UDEV
-#include <libudev.h>
-#endif
-
-#define MIN_WIDTH   32
-
-/* drm module internal macros, structures, functions */
-#define NEVER_GET_HERE() TDM_ERR("** NEVER GET HERE **")
-
-#define C(b, m)			  (((b) >> (m)) & 0xFF)
-#define B(c, s)			  ((((unsigned int)(c)) & 0xff) << (s))
-#define FOURCC(a, b, c, d)	 (B(d, 24) | B(c, 16) | B(b, 8) | B(a, 0))
-#define FOURCC_STR(id)	  C(id, 0), C(id, 8), C(id, 16), C(id, 24)
-
-#define IS_RGB(format)	  (format == TBM_FORMAT_XRGB8888 || format == TBM_FORMAT_ARGB8888 || \
-							 format == TBM_FORMAT_XBGR8888 || format == TBM_FORMAT_ABGR8888)
-
-#define CLEAR(x) memset(&(x), 0, sizeof(x))
-#define MAX(a, b) (((a) > (b)) ? (a) : (b))
-#define MIN(a, b) (((a) < (b)) ? (a) : (b))
-#define SWAP(a, b)  ({int t; t = a; a = b; b = t; })
-#define ROUNDUP(x)  (ceil(floor((float)(height) / 4)))
-
-#define ALIGN_TO_16B(x)	((((x) + (1 <<  4) - 1) >>  4) <<  4)
-#define ALIGN_TO_32B(x)	((((x) + (1 <<  5) - 1) >>  5) <<  5)
-#define ALIGN_TO_128B(x)   ((((x) + (1 <<  7) - 1) >>  7) <<  7)
-#define ALIGN_TO_2KB(x)	((((x) + (1 << 11) - 1) >> 11) << 11)
-#define ALIGN_TO_8KB(x)	((((x) + (1 << 13) - 1) >> 13) << 13)
-#define ALIGN_TO_64KB(x)   ((((x) + (1 << 16) - 1) >> 16) << 16)
-
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
-
-#define CURSOR_MIN_W 192
-#define CURSOR_MIN_H 192
-#define CURSOR_MAX_W 192
-#define CURSOR_MAX_H 192
-
-#define RETURN_VAL_IF_FAIL(cond, val) {\
-	if (!(cond)) {\
-		TDM_ERR("'%s' failed", #cond);\
-		return val;\
-	} \
-}
-
-#define RETURN_IF_FAIL(cond) {\
-	if (!(cond)) {\
-		TDM_ERR("'%s' failed", #cond);\
-		return;\
-	} \
-}
-
-#define GOTO_IF_FAIL(cond, val) {\
-	if (!(cond)) {\
-		TDM_ERR("'%s' failed", #cond);\
-		goto val;\
-	} \
-}
-
-typedef struct _tdm_drm_data tdm_drm_data;
-typedef struct _tdm_drm_output_data tdm_drm_output_data;
-typedef struct _tdm_drm_layer_data tdm_drm_layer_data;
-typedef struct _tdm_drm_hwc_data tdm_drm_hwc_data;
-typedef struct _tdm_drm_hwc_window_data tdm_drm_hwc_window_data;
-typedef struct _tdm_drm_event_data tdm_drm_event_data;
-typedef struct _tdm_drm_display_buffer tdm_drm_display_buffer;
-
-typedef enum {
-		TDM_DRM_EVENT_TYPE_WAIT,
-		TDM_DRM_EVENT_TYPE_COMMIT,
-		TDM_DRM_EVENT_TYPE_PAGEFLIP,
-} tdm_drm_event_type;
-
-struct _tdm_drm_data {
-	tdm_display *dpy;
-
-	int drm_fd;
-
-#if LIBDRM_MAJOR_VERSION >= 2 && LIBDRM_MINOR_VERSION >= 4  && LIBDRM_MICRO_VERSION >= 47
-	int has_universal_plane;
-#endif
-
-#if HAVE_UDEV
-	struct udev_monitor *uevent_monitor;
-	tdm_event_loop_source *uevent_source;
-#endif
-
-	drmModeResPtr mode_res;
-	drmModePlaneResPtr plane_res;
-
-	int hwc_mode;
-
-	struct list_head output_list;
-	struct list_head buffer_list;
-};
-
-struct _tdm_drm_display_buffer {
-	struct list_head link;
-
-	unsigned int fb_id;
-	tbm_surface_h buffer;
-	int width;
-	unsigned int height;
-	unsigned int format;
-	unsigned int handles[4];
-	unsigned int fds[4];
-	unsigned int pitches[4];
-	unsigned int offsets[4];
-	unsigned int size;
-	unsigned int count;
-};
-
-struct _tdm_drm_event_data {
-	tdm_drm_event_type type;
-	tdm_drm_output_data *output_data;
-	void *user_data;
-};
-
-struct _tdm_drm_output_data {
-	struct list_head link;
-
-	/* data which are fixed at initializing */
-	tdm_drm_data *drm_data;
-	uint32_t connector_id;
-	uint32_t encoder_id;
-	uint32_t crtc_id;
-	uint32_t pipe;
-	uint32_t dpms_prop_id;
-	int count_modes;
-	drmModeModeInfoPtr drm_modes;
-	tdm_output_mode *output_modes;
-	tdm_output_type connector_type;
-	unsigned int connector_type_id;
-	struct list_head layer_list;
-	tdm_drm_layer_data *primary_layer;
-
-	/* not fixed data below */
-	tdm_output_vblank_handler vblank_func;
-	tdm_output_commit_handler commit_func;
-
-	tdm_output_conn_status status;
-	tdm_output_status_handler status_func;
-	void *status_user_data;
-
-	int mode_changed;
-	const tdm_output_mode *current_mode;
-
-	/* hwc */
-	int hwc_enable;
-	tdm_drm_hwc_data *hwc_data;
-
-	/* dpms */
-	tdm_output_dpms current_dpms;
-};
-
-struct _tdm_drm_layer_data {
-	struct list_head link;
-
-	/* data which are fixed at initializing */
-	tdm_drm_data *drm_data;
-	tdm_drm_output_data *output_data;
-	uint32_t plane_id;
-	tdm_layer_capability capabilities;
-	int zpos;
-
-	/* not fixed data below */
-	tdm_info_layer info;
-	int info_changed;
-
-	tdm_drm_display_buffer *display_buffer;
-	int display_buffer_changed;
-};
-
-struct _tdm_drm_hwc_data {
-	tdm_drm_hwc_window_data *target_hwc_window;
-
-	int need_validate;
-	int need_target_window;
-	int need_set_crtc;
-
-	int target_window_zpos;
-
-	tdm_drm_output_data *output_data;
-	struct list_head hwc_window_list;
-
-	tbm_surface_h cursor_tsurface;
-
-	tdm_hwc_commit_handler commit_func;
-};
-
-struct _tdm_drm_hwc_window_data {
-	struct list_head link;
-
-	tdm_drm_hwc_data *hwc_data;
-
-	tdm_hwc_window_info info;
-	tbm_surface_h surface;
-	tdm_hwc_window_composition client_type;
-	tdm_hwc_window_composition validated_type;
-	int lzpos;
-
-	char name[TDM_NAME_LEN];
-	struct {
-		int width;
-		int height;
-		int stride;
-		void *ptr;
-	} cursor_img;
-	int cursor_img_surface;
-	int cursor_img_refresh;
-};
-
-#endif /* _TDM_DRM_TYPES_H_ */
diff --git a/src/libhal-backend-tdm-drm/tdm_backend_drm.c b/src/tdm_backend_drm.c
index d6e420e..d6e420e 100644
--- a/src/libhal-backend-tdm-drm/tdm_backend_drm.c
+++ b/src/tdm_backend_drm.c
diff --git a/src/libhal-backend-tdm-drm/tdm_backend_drm.h b/src/tdm_backend_drm.h
index 4cc8fc2..4cc8fc2 100644
--- a/src/libhal-backend-tdm-drm/tdm_backend_drm.h
+++ b/src/tdm_backend_drm.h
diff --git a/src/libhal-backend-tdm-drm/tdm_backend_drm_types.h b/src/tdm_backend_drm_types.h
index 2d13c13..2d13c13 100644
--- a/src/libhal-backend-tdm-drm/tdm_backend_drm_types.h
+++ b/src/tdm_backend_drm_types.h
diff --git a/src/libhal-backend-tdm-drm/tdm_backend_list.h b/src/tdm_backend_list.h
index 3873817..3873817 100644
--- a/src/libhal-backend-tdm-drm/tdm_backend_list.h
+++ b/src/tdm_backend_list.h
diff --git a/src/libhal-backend-tdm-drm/tdm_backend_log.c b/src/tdm_backend_log.c
index e4d17c0..e4d17c0 100644
--- a/src/libhal-backend-tdm-drm/tdm_backend_log.c
+++ b/src/tdm_backend_log.c
diff --git a/src/libhal-backend-tdm-drm/tdm_backend_log.h b/src/tdm_backend_log.h
index c0b9a05..c0b9a05 100644
--- a/src/libhal-backend-tdm-drm/tdm_backend_log.h
+++ b/src/tdm_backend_log.h
diff --git a/src/libhal-backend-tdm-drm/tdm_drm_display.c b/src/tdm_drm_display.c
index 10c820c..10c820c 100644
--- a/src/libhal-backend-tdm-drm/tdm_drm_display.c
+++ b/src/tdm_drm_display.c
diff --git a/src/libhal-backend-tdm-drm/tdm_drm_format.c b/src/tdm_drm_format.c
index 143bf41..143bf41 100644
--- a/src/libhal-backend-tdm-drm/tdm_drm_format.c
+++ b/src/tdm_drm_format.c
diff --git a/src/libhal-backend-tdm-drm/tdm_drm_hwc.c b/src/tdm_drm_hwc.c
index 5f7bc6a..5f7bc6a 100644
--- a/src/libhal-backend-tdm-drm/tdm_drm_hwc.c
+++ b/src/tdm_drm_hwc.c
diff --git a/src/libhal-backend-tdm-drm/tdm_drm_hwc_window.c b/src/tdm_drm_hwc_window.c
index 206f06a..206f06a 100644
--- a/src/libhal-backend-tdm-drm/tdm_drm_hwc_window.c
+++ b/src/tdm_drm_hwc_window.c
diff --git a/src/libhal-backend-tdm-drm/tdm_drm_pp.c b/src/tdm_drm_pp.c
index dc684dd..dc684dd 100644
--- a/src/libhal-backend-tdm-drm/tdm_drm_pp.c
+++ b/src/tdm_drm_pp.c