Do not send pid through socket message for security
[platform/core/api/camera.git] / src / camera.c
index 16620f2..f4bf264 100644 (file)
 #include <camera.h>
 #include <muse_camera.h>
 #include <muse_camera_msg.h>
-#include <muse_core_ipc.h>
-#include <muse_core_module.h>
 #include <camera_private.h>
 #include <muse_core.h>
+#include <muse_client.h>
 #include <dlog.h>
-#include <Elementary.h>
 #include <tbm_surface_internal.h>
-#include <Evas.h>
-#include <Ecore_Wayland.h>
-#include <wayland-client.h>
-#include <tizen-extension-client-protocol.h>
-#ifdef TIZEN_FEATURE_EVAS_RENDERER
-#include <mm_evas_renderer.h>
-#endif /* TIZEN_FEATURE_EVAS_RENDERER */
+#include <gio/gio.h>
 
 #ifdef LOG_TAG
 #undef LOG_TAG
 #endif
 #define LOG_TAG "TIZEN_N_CAMERA"
+#define MODULE_NAME "camera"
+
+/* for device changed callback */
+static GMutex g_cam_dev_state_changed_cb_lock;
+static GList *g_cam_dev_state_changed_cb_list;
+static int g_cam_dev_state_changed_cb_id;
+static GDBusConnection *g_cam_dev_state_changed_cb_conn;
+static guint g_cam_dev_state_changed_cb_subscribe_id;
+static GMutex g_cam_idle_event_lock;
+
+static void _camera_msg_send(int api, int *fds, camera_cb_info_s *cb_info,
+       int *ret, int timeout);
+static void _camera_msg_send_param1(int api, camera_cb_info_s *cb_info,
+       int *ret, camera_msg_param *param, int timeout);
+static void _camera_msg_send_param2_int(int api, camera_cb_info_s *cb_info,
+       int *ret, camera_msg_param *param0, camera_msg_param *param1, int timeout);
+static void _camera_msg_return_buffer(int ret_fd, camera_cb_info_s *cb_info);
+static bool _camera_import_tbm_fd(tbm_bufmgr bufmgr, int fd, tbm_bo *bo, tbm_bo_handle *bo_handle);
+static void _camera_release_imported_bo(tbm_bo *bo);
+static void _camera_preview_frame_create(camera_stream_data_s *stream, int num_buffer_fd,
+       tbm_bo_handle *buffer_bo_handle, tbm_bo_handle *data_bo_handle, camera_preview_data_s *frame);
+static int _camera_media_packet_create(camera_cb_info_s *cb_info, camera_stream_data_s *stream,
+       camera_media_packet_data *mp_data, media_packet_h *packet);
+static int _camera_media_packet_data_create(int ret_fd, int *tfd, int num_buffer_fd, tbm_bo bo,
+       tbm_bo *buffer_bo, tbm_bo data_bo, camera_media_packet_data **mp_data);
+static void _camera_media_packet_data_release(camera_media_packet_data *mp_data, camera_cb_info_s *cb_info);
+static gboolean _camera_allocate_preview_buffer(camera_h camera);
+static void _camera_release_preview_buffer(camera_h camera);
+
+
+static gboolean _camera_allocate_preview_buffer(camera_h camera)
+{
+       int i = 0;
+       int ret = CAMERA_ERROR_NONE;
+       int format = CAMERA_PIXEL_FORMAT_INVALID;
+       int width = 0;
+       int height = 0;
+       int buffer_size = 0;
+       camera_cli_s *pc = (camera_cli_s *)camera;
+       camera_cb_info_s *cb_info = NULL;
 
+       if (!pc || !pc->cb_info) {
+               LOGE("invalid pointer %p %p", pc, pc ? pc->cb_info : NULL);
+               return FALSE;
+       }
 
-static void __global(void *data, struct wl_registry *registry,
-       uint32_t name, const char *interface, uint32_t version)
-{
-       struct tizen_surface **tz_surface = NULL;
+       cb_info = pc->cb_info;
 
-       if (!data) {
-               LOGE("NULL data");
-               return;
+       LOGD("Enter");
+
+       /* get preview info and calculate size */
+       ret = camera_get_preview_format(camera, &format);
+       if (ret != CAMERA_ERROR_NONE) {
+               LOGE("get preview format failed 0x%x", ret);
+               return FALSE;
        }
 
-       tz_surface = (struct tizen_surface **)data;
+       ret = camera_get_preview_resolution(camera, &width, &height);
+       if (ret != CAMERA_ERROR_NONE) {
+               LOGE("get preview resolution failed 0x%x", ret);
+               return FALSE;
+       }
 
-       if (!interface) {
-               LOGW("NULL interface");
-               return;
+       LOGD("preview %dx%d, format %d", width, height, format);
+
+       switch (format) {
+       case CAMERA_PIXEL_FORMAT_INVZ:
+               buffer_size = width * height;
+               break;
+       case CAMERA_PIXEL_FORMAT_NV12:
+       case CAMERA_PIXEL_FORMAT_I420:
+               buffer_size = (width * height * 3) >> 1;
+               break;
+       case CAMERA_PIXEL_FORMAT_YUYV:
+       case CAMERA_PIXEL_FORMAT_UYVY:
+               buffer_size = width * height * 2;
+               break;
+       default:
+               LOGE("unhandled format %d", format);
+               goto _ALLOCATE_PREVIEW_BUFFER_FAILED;
        }
 
-       /*LOGI("interface %s", interface);*/
+       LOGD("buffer size %d, num %d", buffer_size, MUSE_NUM_FD);
 
-       if (strcmp(interface, "tizen_surface") == 0) {
-               LOGD("binding tizen surface for wayland");
+       for (i = 0 ; i < MUSE_NUM_FD ; i++) {
+               cb_info->bos[i] = tbm_bo_alloc(cb_info->bufmgr, buffer_size, TBM_BO_DEFAULT);
+               if (!cb_info->bos[i]) {
+                       LOGE("bo alloc failed [%d,i:%d]", buffer_size, i);
+                       goto _ALLOCATE_PREVIEW_BUFFER_FAILED;
+               }
 
-               *tz_surface = wl_registry_bind(registry, name, &tizen_surface_interface, version);
-               if (*tz_surface == NULL)
-                       LOGE("failed to bind");
+               cb_info->fds[i] = tbm_bo_export_fd(cb_info->bos[i]);
+               if (cb_info->fds[i] < 0) {
+                       LOGE("export fd failed [%d,i:%d] errno %d", buffer_size, i, errno);
+                       goto _ALLOCATE_PREVIEW_BUFFER_FAILED;
+               }
 
-               LOGD("done");
+               LOGD("bo %p, fd %d", cb_info->bos[i], cb_info->fds[i]);
        }
 
-       return;
+       LOGD("Done");
+
+       return TRUE;
+
+_ALLOCATE_PREVIEW_BUFFER_FAILED:
+       _camera_release_preview_buffer(camera);
+       return FALSE;
 }
 
-static void __global_remove(void *data, struct wl_registry *wl_registry, uint32_t name)
+
+static void _camera_release_preview_buffer(camera_h camera)
 {
-       LOGD("enter");
+       int i = 0;
+       camera_cli_s *pc = (camera_cli_s *)camera;
+       camera_cb_info_s *cb_info = NULL;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("invalid pointer %p %p", pc, pc ? pc->cb_info : NULL);
+               return;
+       }
+
+       LOGD("Enter");
+
+       cb_info = pc->cb_info;
+
+       /* close exported fd and bos */
+       for (i = 0 ; i < MUSE_NUM_FD ; i++) {
+               LOGD("unref bo %p, close fd %d", cb_info->bos[i], cb_info->fds[i]);
+
+               if (cb_info->bos[i]) {
+                       tbm_bo_unref(cb_info->bos[i]);
+                       cb_info->bos[i] = NULL;
+               } else {
+                       break;
+               }
+
+               if (cb_info->fds[i] >= 0) {
+                       close(cb_info->fds[i]);
+                       cb_info->fds[i] = -1;
+               }
+       }
+
+       LOGD("Done");
+
        return;
 }
 
-static const struct wl_registry_listener _camera_wl_registry_listener = {
-       __global,
-       __global_remove
-};
 
-void __parent_id_getter(void *data, struct tizen_resource *tizen_resource, uint32_t id)
+static void __camera_update_api_waiting(camera_cb_info_s *cb_info, int api, int value)
 {
-       if (!data) {
-               LOGE("NULL data");
+       if (!cb_info ||
+               api < 0 || api >= MUSE_CAMERA_API_MAX) {
+               LOGE("invalid param %p %d", cb_info, api);
                return;
        }
 
-       *((unsigned int *)data) = id;
+       g_mutex_lock(&(cb_info->api_mutex[api]));
+       cb_info->api_waiting[api] += value;
+       g_mutex_unlock(&(cb_info->api_mutex[api]));
 
-       LOGD("[CLIENT] got parent_id [%u] from server", id);
+       /*LOGD("api %d, value %d, waiting %d",
+               api, value, cb_info->api_waiting[api]);*/
 
        return;
 }
 
-static const struct tizen_resource_listener _camera_tz_resource_listener = {
-       __parent_id_getter
-};
 
-int _get_wl_info(Evas_Object *obj, camera_wl_info_s *wl_info)
+static void __camera_device_state_changed_cb(GDBusConnection *connection,
+       const gchar *sender_name, const gchar *object_path, const gchar *interface_name,
+       const gchar *signal_name, GVariant *param, gpointer user_data)
 {
-       int ret = CAMERA_ERROR_NONE;
-       Ecore_Wl_Window *window = NULL;
-       struct wl_display *display = NULL;
-       struct wl_surface *surface = NULL;
-       struct wl_registry *registry = NULL;
-       struct tizen_surface *tz_surface = NULL;
-       struct tizen_resource *tz_resource = NULL;
+       int value = 0;
+       camera_device_e device = CAMERA_DEVICE_CAMERA0;
+       camera_device_state_e state = CAMERA_DEVICE_STATE_NULL;
+       GList *tmp_list = NULL;
+       camera_cb_info *info = NULL;
 
-       if (!obj || !wl_info) {
-               LOGE("NULL parameter %p %p", obj, wl_info);
-               return CAMERA_ERROR_INVALID_OPERATION;
-       }
+       g_mutex_lock(&g_cam_dev_state_changed_cb_lock);
 
-       window = elm_win_wl_window_get(obj);
-       if (!window) {
-               LOGE("failed to get wayland window");
-               ret = CAMERA_ERROR_INVALID_OPERATION;
+       if (!g_cam_dev_state_changed_cb_list || !param) {
+               LOGW("no callback or NULL param %p", param);
                goto _DONE;
        }
 
-       surface = (struct wl_surface *)ecore_wl_window_surface_get(window);
-       if (!surface) {
-               LOGE("failed to get wayland surface");
-               ret = CAMERA_ERROR_INVALID_OPERATION;
-               goto _DONE;
-       }
+       /* get device and state */
+       g_variant_get(param, "(i)", &value);
 
-       display = (struct wl_display *)ecore_wl_display_get();
-       if (!display) {
-               LOGE("failed to get wayland display");
-               ret = CAMERA_ERROR_INVALID_OPERATION;
-               goto _DONE;
+       device = value >> 16;
+       state = 0x0000ffff & value;
+
+       LOGD("device %d, state %d", device, state);
+
+       tmp_list = g_cam_dev_state_changed_cb_list;
+
+       do {
+               info = (camera_cb_info *)tmp_list->data;
+
+               if (info) {
+                       if (info->callback) {
+                               LOGD("start id[%d] callback", info->id);
+                               ((camera_device_state_changed_cb)info->callback)(device, state, info->user_data);
+                               LOGD("returned id[%d] callback", info->id);
+                       } else {
+                               LOGW("NULL callback for id %d", info->id);
+                       }
+               }
+
+               tmp_list = tmp_list->next;
+       } while (tmp_list);
+
+_DONE:
+       g_mutex_unlock(&g_cam_dev_state_changed_cb_lock);
+
+       return;
+}
+
+
+static void __camera_event_handler_preview(camera_cb_info_s *cb_info, char *recv_msg, int *tfd)
+{
+       int i = 0;
+       int ret = 0;
+       int ret_fd = -1;
+       int preview_fd = -1;
+       int num_buffer_fd = 0;
+       unsigned char *buf_pos = NULL;
+
+       tbm_bo bo = NULL;
+       tbm_bo buffer_bo[BUFFER_MAX_PLANE_NUM] = {NULL, };
+       tbm_bo_handle bo_handle = {.ptr = NULL};
+       tbm_bo_handle buffer_bo_handle[BUFFER_MAX_PLANE_NUM] = {{.ptr = NULL}, };
+       tbm_bo data_bo = NULL;
+       tbm_bo_handle data_bo_handle = {.ptr = NULL};
+
+       camera_msg_param param;
+       camera_preview_data_s frame;
+       camera_stream_data_s *stream = NULL;
+       camera_media_packet_data *mp_data = NULL;
+       media_packet_h pkt = NULL;
+       media_packet_h pkt_evas = NULL;
+
+       /* tfd[0]: MMCamcorderVideoStreamDataType
+          tfd[1]: data_bo or zero copy bo[0]
+          tfd[2]: zero copy bo[1]
+          tfd[3]: zero copy bo[2] */
+
+       if (!cb_info || !recv_msg || !tfd) {
+               LOGE("invalid param %p %p %p", cb_info, recv_msg, tfd);
+               return;
        }
 
-       registry = wl_display_get_registry(display);
-       if (!registry) {
-               LOGE("failed to get wayland registry");
-               ret = CAMERA_ERROR_INVALID_OPERATION;
-               goto _DONE;
+       muse_camera_msg_get(preview_fd, recv_msg);
+       muse_camera_msg_get(num_buffer_fd, recv_msg);
+
+       /*LOGD("preview_fd %d, num_buffer_fd %d", preview_fd, num_buffer_fd);*/
+
+       memset(&frame, 0x0, sizeof(camera_preview_data_s));
+
+       if (tfd[0] < 0) {
+               LOGE("invalid fd %d", tfd[0]);
+               return;
        }
 
-       wl_registry_add_listener(registry, &_camera_wl_registry_listener, &tz_surface);
+       ret_fd = preview_fd;
+       CAMERA_MSG_PARAM_SET(param, INT, ret_fd);
 
-       wl_display_dispatch(display);
-       wl_display_roundtrip(display);
+       if (num_buffer_fd < 0 || num_buffer_fd > BUFFER_MAX_PLANE_NUM) {
+               LOGE("invalid num buffer fd %d", num_buffer_fd);
+               goto _PREVIEW_CB_HANDLER_DONE;
+       }
 
-       if (!tz_surface) {
-               LOGE("failed to get tizen surface");
-               ret = CAMERA_ERROR_INVALID_OPERATION;
-               goto _DONE;
+       if (num_buffer_fd == 0 && tfd[1] >= 0) {
+               /* import tbm data_bo and get virtual address */
+               if (!_camera_import_tbm_fd(cb_info->bufmgr, tfd[1], &data_bo, &data_bo_handle)) {
+                       LOGE("failed to import data fd %d", tfd[1]);
+                       goto _PREVIEW_CB_HANDLER_DONE;
+               }
        }
 
-       /* Get parent_id which is unique in a entire systemw. */
-       tz_resource = tizen_surface_get_tizen_resource(tz_surface, surface);
-       if (!tz_resource) {
-               LOGE("failed to get tizen resurce");
-               ret = CAMERA_ERROR_INVALID_OPERATION;
-               goto _DONE;
+       /* import tbm bo and get virtual address */
+       if (!_camera_import_tbm_fd(cb_info->bufmgr, tfd[0], &bo, &bo_handle)) {
+               LOGE("failed to import fd %d", tfd[0]);
+               goto _PREVIEW_CB_HANDLER_DONE;
        }
 
-       wl_info->parent_id = 0;
+       buf_pos = (unsigned char *)bo_handle.ptr;
 
-       tizen_resource_add_listener(tz_resource, &_camera_tz_resource_listener, &wl_info->parent_id);
+       /* get stream info */
+       stream = (camera_stream_data_s *)buf_pos;
 
-       wl_display_roundtrip(display);
+       for (i = 0 ; i < num_buffer_fd ; i++) {
+               /* import buffer bo and get virtual address */
+               if (!_camera_import_tbm_fd(cb_info->bufmgr, tfd[i + 1], &buffer_bo[i], &buffer_bo_handle[i])) {
+                       LOGE("failed to import buffer fd %d", tfd[i + 1]);
+                       goto _PREVIEW_CB_HANDLER_DONE;
+               }
+       }
 
-       if (wl_info->parent_id > 0) {
-               int rotation = 0;
-               Ecore_Evas *ecore_evas = NULL;
-               ret = CAMERA_ERROR_NONE;
+       /* call preview callback */
+       if (cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_PREVIEW]) {
+               _camera_preview_frame_create(stream, num_buffer_fd, buffer_bo_handle, &data_bo_handle, &frame);
+
+               ((camera_preview_cb)cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_PREVIEW])(&frame,
+                       cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_PREVIEW]);
+       }
 
-               wl_info->evas_obj = obj;
+       if (CHECK_PREVIEW_CB(cb_info, PREVIEW_CB_TYPE_EVAS)) {
+               ret = _camera_media_packet_data_create(ret_fd, tfd, num_buffer_fd, bo, buffer_bo, data_bo, &mp_data);
 
-               evas_object_geometry_get(obj, &wl_info->window_x, &wl_info->window_y,
-                       &wl_info->window_width, &wl_info->window_height);
+               if (ret == CAMERA_ERROR_NONE) {
+                       ret = _camera_media_packet_create(cb_info, stream, mp_data, &pkt_evas);
+                       if (ret != CAMERA_ERROR_NONE) {
+                               LOGE("create pkt for evas failed");
+                               _camera_media_packet_data_release(mp_data, cb_info);
+                               mp_data = NULL;
+                       }
+               }
+       }
 
-               ecore_evas = ecore_evas_ecore_evas_get(evas_object_evas_get(obj));
-               if (ecore_evas) {
-                       rotation = ecore_evas_rotation_get(ecore_evas);
-                       if (rotation == 90 || rotation == 270) {
-                               int temp = wl_info->window_width;
+       /* call media packet callback */
+       if (cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW]) {
+               ret = _camera_media_packet_data_create(ret_fd, tfd, num_buffer_fd, bo, buffer_bo, data_bo, &mp_data);
 
-                               LOGD("swap width and height %d, %d", wl_info->window_width, wl_info->window_height);
+               if (ret == CAMERA_ERROR_NONE) {
+                       ret = _camera_media_packet_create(cb_info, stream, mp_data, &pkt);
 
-                               wl_info->window_width = wl_info->window_height;
-                               wl_info->window_height = temp;
+                       if (ret == CAMERA_ERROR_NONE) {
+                               ((camera_media_packet_preview_cb)cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW])(pkt,
+                                       cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW]);
+                       } else {
+                               _camera_media_packet_data_release(mp_data, cb_info);
+                               mp_data = NULL;
                        }
+               }
+       }
+
+       /* call evas renderer */
+       if (pkt_evas) {
+               if (cb_info->run_evas_render) {
+                       mm_display_interface_evas_render(cb_info->dp_interface, pkt_evas);
                } else {
-                       LOGW("failed to get ecore_evas.. skip rotation check");
+                       LOGW("evas renderer is stopped, skip this buffer...");
+                       media_packet_destroy(pkt_evas);
                }
+               pkt_evas = NULL;
+       }
+
+       /* send message for preview callback return */
+       if (!CHECK_PREVIEW_CB(cb_info, PREVIEW_CB_TYPE_EVAS))
+               _camera_msg_send(MUSE_CAMERA_API_PREVIEW_CB_RETURN, NULL, cb_info, NULL, 0);
 
-               LOGD("evas object : %p, rotation : %d, parent id : %u, window : %d,%d,%dx%d",
-                       wl_info->evas_obj, rotation, wl_info->parent_id,
-                       wl_info->window_x, wl_info->window_y,
-                       wl_info->window_width, wl_info->window_height);
+_PREVIEW_CB_HANDLER_DONE:
+       if (mp_data == NULL) {
+               /* release imported bo */
+               for (i = 0 ; i < num_buffer_fd && i < BUFFER_MAX_PLANE_NUM ; i++)
+                       _camera_release_imported_bo(&buffer_bo[i]);
+
+               /* unmap and unref tbm bo */
+               _camera_release_imported_bo(&data_bo);
+               _camera_release_imported_bo(&bo);
+
+               /* close imported fd */
+               for (i = 0 ; i < MUSE_NUM_FD ; i++) {
+                       if (tfd[i] >= 0) {
+                               close(tfd[i]);
+                               tfd[i] = -1;
+                       } else {
+                               break;
+                       }
+               }
+
+               /* return buffer */
+               _camera_msg_send_param1(MUSE_CAMERA_API_RETURN_BUFFER, cb_info, NULL, &param, 0);
+
+               /*LOGD("return buffer Done");*/
+       }
+
+       return;
+}
+
+
+static void __camera_event_handler_capture(camera_cb_info_s *cb_info, char *recv_msg, int *tfd)
+{
+       int i = 0;
+       int tfd_index = 0;
+       int capture_fd_main = 0;
+       int capture_fd_post = 0;
+       int capture_fd_thumb = 0;
+       unsigned char *buf_pos = NULL;
+
+       camera_image_data_s *rImage = NULL;
+       camera_image_data_s *rPostview = NULL;
+       camera_image_data_s *rThumbnail = NULL;
+
+       tbm_bo bo_main = NULL;
+       tbm_bo bo_post = NULL;
+       tbm_bo bo_thumb = NULL;
+       tbm_bo_handle bo_main_handle = {.ptr = NULL};
+       tbm_bo_handle bo_post_handle = {.ptr = NULL};
+       tbm_bo_handle bo_thumb_handle = {.ptr = NULL};
+
+       if (!cb_info || !recv_msg || !tfd) {
+               LOGE("invalid param %p %p %p", cb_info, recv_msg, tfd);
+               return;
+       }
+
+       muse_camera_msg_get(capture_fd_main, recv_msg);
+       muse_camera_msg_get(capture_fd_post, recv_msg);
+       muse_camera_msg_get(capture_fd_thumb, recv_msg);
+
+       LOGD("capture fd %d %d %d, received fd %d %d %d",
+               capture_fd_main, capture_fd_post, capture_fd_thumb,
+               tfd[0], tfd[1], tfd[2]);
+
+       if (capture_fd_main < 0 || tfd[tfd_index] < 0) {
+               LOGE("invalid main fd %d %d", capture_fd_main, tfd[tfd_index]);
+               goto _CAPTURE_CB_HANDLER_DONE;
+       }
+
+       if (cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_CAPTURE] == NULL) {
+               LOGW("NULL callback");
+               goto _CAPTURE_CB_HANDLER_DONE;
+       }
+
+       /* import tbm bo and get virtual address */
+       if (!_camera_import_tbm_fd(cb_info->bufmgr, tfd[tfd_index], &bo_main, &bo_main_handle)) {
+               LOGE("failed to import fd [%d] for main", tfd[tfd_index]);
+               goto _CAPTURE_CB_HANDLER_DONE;
+       }
+
+       buf_pos = (unsigned char *)bo_main_handle.ptr;
+       rImage = (camera_image_data_s *)buf_pos;
+       rImage->data = buf_pos + sizeof(camera_image_data_s);
+       if (rImage->exif && rImage->exif_size > 0) {
+               rImage->exif = rImage->data + rImage->size;
        } else {
-               ret = CAMERA_ERROR_INVALID_OPERATION;
-               LOGE("failed to get parent id");
+               rImage->exif = NULL;
+               rImage->exif_size = 0;
        }
 
-_DONE:
-       if (tz_surface) {
-               tizen_surface_destroy(tz_surface);
-               tz_surface = NULL;
+       LOGD("image info %dx%d, size %d, EXIF info %p, size %d",
+               rImage->width, rImage->height, rImage->size, rImage->exif, rImage->exif_size);
+
+       if (capture_fd_post >= 0) {
+               /* import tbm bo and get virtual address */
+               tfd_index++;
+               if (_camera_import_tbm_fd(cb_info->bufmgr, tfd[tfd_index], &bo_post, &bo_post_handle)) {
+                       buf_pos = (unsigned char *)bo_post_handle.ptr;
+                       rPostview = (camera_image_data_s *)buf_pos;
+                       LOGD("rPostview->size : %d", rPostview->size);
+                       rPostview->data = buf_pos + sizeof(camera_image_data_s);
+               } else {
+                       LOGE("failed to import fd [i:%d][%d] for postview", tfd_index, tfd[tfd_index]);
+               }
        }
 
-       if (tz_resource) {
-               tizen_resource_destroy(tz_resource);
-               tz_resource = NULL;
+       if (capture_fd_thumb >= 0) {
+               /* import tbm bo and get virtual address */
+               tfd_index++;
+               if (_camera_import_tbm_fd(cb_info->bufmgr, tfd[tfd_index], &bo_thumb, &bo_thumb_handle)) {
+                       buf_pos = (unsigned char *)bo_thumb_handle.ptr;
+                       rThumbnail = (camera_image_data_s *)buf_pos;
+                       LOGD("rThumbnail->size : %d", rThumbnail->size);
+                       rThumbnail->data = buf_pos + sizeof(camera_image_data_s);
+               } else {
+                       LOGE("failed to import fd [%d] for thumbnail", tfd[tfd_index]);
+               }
        }
 
-       if (registry) {
-               wl_registry_destroy(registry);
-               registry = NULL;
+       ((camera_capturing_cb)cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_CAPTURE])(rImage,
+               rPostview, rThumbnail, cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_CAPTURE]);
+
+_CAPTURE_CB_HANDLER_DONE:
+       /* return buffer */
+       if (capture_fd_main >= 0) {
+               _camera_release_imported_bo(&bo_main);
+               _camera_msg_return_buffer(capture_fd_main, cb_info);
        }
 
-       return ret;
+       if (capture_fd_post >= 0) {
+               _camera_release_imported_bo(&bo_post);
+               _camera_msg_return_buffer(capture_fd_post, cb_info);
+       }
+
+       if (capture_fd_thumb >= 0) {
+               _camera_release_imported_bo(&bo_thumb);
+               _camera_msg_return_buffer(capture_fd_thumb, cb_info);
+       }
+
+       for (i = 0 ; i < MUSE_NUM_FD ; i++) {
+               if (tfd[i] >= 0) {
+                       LOGD("close %d", tfd[i]);
+                       close(tfd[i]);
+                       tfd[i] = -1;
+               } else {
+                       break;
+               }
+       }
+
+       LOGD("return buffer done");
+
+       return;
 }
 
-static int _import_tbm_key(tbm_bufmgr bufmgr, unsigned int tbm_key, tbm_bo *bo, tbm_bo_handle *bo_handle)
+
+static void __camera_event_handler_face_detection(camera_cb_info_s *cb_info, char *recv_msg, int *tfd)
+{
+       int count = 0;
+       int face_fd = -1;
+       camera_detected_face_s *faces = NULL;
+
+       tbm_bo bo = NULL;
+       tbm_bo_handle bo_handle = {.ptr = NULL};
+
+       if (!cb_info || !recv_msg || !tfd) {
+               LOGE("invalid param %p %p %p", cb_info, recv_msg, tfd);
+               return;
+       }
+
+       muse_camera_msg_get(count, recv_msg);
+       muse_camera_msg_get(face_fd, recv_msg);
+
+       if (count >= 0 && cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION]) {
+               LOGD("FACE_DETECTION - count %d, fd %d", count, tfd[0]);
+
+               if (tfd[0] >= 0) {
+                       if (_camera_import_tbm_fd(cb_info->bufmgr, tfd[0], &bo, &bo_handle)) {
+                               /* set face info */
+                               faces = bo_handle.ptr;
+                       }
+
+                       close(tfd[0]);
+                       tfd[0] = -1;
+               }
+
+               ((camera_face_detected_cb)cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION])(faces,
+                       count, cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION]);
+
+               /* release bo */
+               _camera_release_imported_bo(&bo);
+       } else {
+               LOGW("skip face detection message [count %d, fd %d, cb %p]",
+                       count, tfd[0], cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION]);
+       }
+
+       /* return buffer */
+       _camera_msg_return_buffer(face_fd, cb_info);
+
+       return;
+}
+
+
+static bool _camera_import_tbm_fd(tbm_bufmgr bufmgr, int fd, tbm_bo *bo, tbm_bo_handle *bo_handle)
 {
        tbm_bo tmp_bo = NULL;
        tbm_bo_handle tmp_bo_handle = {NULL, };
 
-       if (bufmgr == NULL || bo == NULL || bo_handle == NULL || tbm_key == 0) {
-               LOGE("invalid parameter - bufmgr %p, bo %p, bo_handle %p, key %d",
-                    bufmgr, bo, bo_handle, tbm_key);
+       if (!bufmgr || !bo || !bo_handle || fd < 0) {
+               LOGE("invalid parameter - %p %p %p, fd %d",
+                    bufmgr, bo, bo_handle, fd);
                return false;
        }
 
-       tmp_bo = tbm_bo_import(bufmgr, tbm_key);
+       tmp_bo = tbm_bo_import_fd(bufmgr, (tbm_fd)fd);
        if (tmp_bo == NULL) {
-               LOGE("bo import failed - bufmgr %p, key %d", bufmgr, tbm_key);
+               LOGE("import failed - fd %d", fd);
                return false;
        }
 
        tmp_bo_handle = tbm_bo_map(tmp_bo, TBM_DEVICE_CPU, TBM_OPTION_READ);
        if (tmp_bo_handle.ptr == NULL) {
-               LOGE("bo map failed %p", tmp_bo);
+               LOGE("map failed %p", tmp_bo);
                tbm_bo_unref(tmp_bo);
                tmp_bo = NULL;
                return false;
@@ -260,10 +619,10 @@ static int _import_tbm_key(tbm_bufmgr bufmgr, unsigned int tbm_key, tbm_bo *bo,
        return true;
 }
 
-static void _release_imported_bo(tbm_bo *bo)
+static void _camera_release_imported_bo(tbm_bo *bo)
 {
-       if (bo == NULL || *bo == NULL) {
-               LOGW("NULL bo");
+       if (!bo || !(*bo)) {
+               /*LOGW("NULL bo");*/
                return;
        }
 
@@ -273,39 +632,261 @@ static void _release_imported_bo(tbm_bo *bo)
        return;
 }
 
-static int _client_wait_for_cb_return(muse_camera_api_e api, camera_cb_info_s *cb_info, int time_out)
+static int _camera_client_wait_for_cb_return(muse_camera_api_e api, camera_cb_info_s *cb_info, int time_out)
 {
        int ret = CAMERA_ERROR_NONE;
        gint64 end_time;
 
        /*LOGD("Enter api : %d", api);*/
 
+       if (!cb_info->is_server_connected) {
+               LOGE("server is disconnected");
+               return CAMERA_ERROR_SERVICE_DISCONNECTED;
+       }
+
        g_mutex_lock(&(cb_info->api_mutex[api]));
 
        if (cb_info->api_activating[api] == 0) {
-               end_time = g_get_monotonic_time() + time_out * G_TIME_SPAN_SECOND;
-               if (g_cond_wait_until(&(cb_info->api_cond[api]), &(cb_info->api_mutex[api]), end_time)) {
+               if (time_out == CAMERA_CB_NO_TIMEOUT) {
+                       LOGW("wait for api %d", api);
+                       g_cond_wait(&(cb_info->api_cond[api]), &(cb_info->api_mutex[api]));
                        ret = cb_info->api_ret[api];
                        cb_info->api_activating[api] = 0;
-
-                       /*LOGD("return value : 0x%x", ret);*/
+                       LOGW("api %d returned 0x%x", api, ret);
                } else {
-                       ret = CAMERA_ERROR_INVALID_OPERATION;
-
-                       LOGE("api %d was TIMED OUT!", api);
+                       end_time = g_get_monotonic_time() + time_out * G_TIME_SPAN_SECOND;
+                       if (g_cond_wait_until(&(cb_info->api_cond[api]), &(cb_info->api_mutex[api]), end_time)) {
+                               ret = cb_info->api_ret[api];
+                               cb_info->api_activating[api] = 0;
+                               /*LOGD("return value : 0x%x", ret);*/
+                       } else {
+                               ret = CAMERA_ERROR_INVALID_OPERATION;
+                               LOGE("api %d was TIMED OUT!", api);
+                       }
                }
        } else {
                ret = cb_info->api_ret[api];
                cb_info->api_activating[api] = 0;
 
-               /*LOGD("condition is already checked for the api[%d], return[0x%x]", api, ret);*/
+               /*LOGD("condition is already checked for the api[%d], return[0x%x]", api, ret);*/
+       }
+
+       g_mutex_unlock(&(cb_info->api_mutex[api]));
+
+       if (ret != CAMERA_ERROR_NONE)
+               LOGE("api %d : error 0x%x", api, ret);
+
+       return ret;
+}
+
+
+static void _camera_msg_send(int api, int *fds, camera_cb_info_s *cb_info,
+       int *ret, int timeout)
+{
+       int send_ret = 0;
+       char *msg = NULL;
+
+       if (!cb_info) {
+               LOGE("NULL info - api %d", api);
+
+               if (ret)
+                       *ret = CAMERA_ERROR_INVALID_PARAMETER;
+
+               return;
+       }
+
+       msg = muse_core_msg_new(api, NULL);
+       if (!msg) {
+               LOGE("msg failed: api %d", api);
+
+               if (ret)
+                       *ret = CAMERA_ERROR_OUT_OF_MEMORY;
+
+               return;
+       }
+
+       /*LOGD("send msg %s", msg);*/
+
+       if (cb_info->is_server_connected) {
+               __camera_update_api_waiting(cb_info, api, 1);
+
+               g_mutex_lock(&cb_info->fd_lock);
+               send_ret = muse_core_msg_send_fd(cb_info->fd, fds, msg);
+               g_mutex_unlock(&cb_info->fd_lock);
+       }
+
+       if (send_ret < 0) {
+               LOGE("msg send failed");
+               if (ret)
+                       *ret = CAMERA_ERROR_INVALID_OPERATION;
+       } else {
+               if (ret)
+                       *ret = _camera_client_wait_for_cb_return(api, cb_info, timeout);
+       }
+
+       __camera_update_api_waiting(cb_info, api, -1);
+
+       muse_core_msg_free(msg);
+
+       return;
+}
+
+
+static void _camera_msg_send_param1(int api, camera_cb_info_s *cb_info,
+       int *ret, camera_msg_param *param, int timeout)
+{
+       int send_ret = 0;
+       int array_length;
+       char *msg = NULL;
+
+       if (!cb_info || !param) {
+               LOGE("invalid pointer : api %d - %p %p", api, cb_info, param);
+
+               if (ret)
+                       *ret = CAMERA_ERROR_INVALID_PARAMETER;
+
+               return;
+       }
+
+       /*LOGD("type %d, name %s", param->type, param->name);*/
+
+       switch (param->type) {
+       case MUSE_TYPE_INT:
+               msg = muse_core_msg_new(api,
+                       param->type, param->name, param->value.value_INT,
+                       NULL);
+               break;
+       case MUSE_TYPE_STRING:
+               msg = muse_core_msg_new(api,
+                       param->type, param->name, param->value.value_STRING,
+                       NULL);
+               break;
+       case MUSE_TYPE_ARRAY:
+               array_length = param->value_size / sizeof(int) + \
+                       (param->value_size % sizeof(int) ? 1 : 0);
+
+               msg = muse_core_msg_new(api,
+                       param->type, param->name, array_length, param->value.value_ARRAY,
+                       NULL);
+               break;
+       default:
+               LOGE("unknown type %d", param->type);
+               break;
+       }
+
+       if (!msg) {
+               LOGE("msg failed: api %d", api);
+
+               if (ret)
+                       *ret = CAMERA_ERROR_OUT_OF_MEMORY;
+
+               return;
+       }
+
+       /*LOGD("send msg %s", msg);*/
+
+       if (cb_info->is_server_connected) {
+               __camera_update_api_waiting(cb_info, api, 1);
+
+               g_mutex_lock(&cb_info->fd_lock);
+               send_ret = muse_core_msg_send(cb_info->fd, msg);
+               g_mutex_unlock(&cb_info->fd_lock);
+       }
+
+       if (send_ret < 0) {
+               LOGE("msg send failed");
+
+               if (ret)
+                       *ret = CAMERA_ERROR_INVALID_OPERATION;
+       } else {
+               if (ret)
+                       *ret = _camera_client_wait_for_cb_return(api, cb_info, timeout);
+       }
+
+       __camera_update_api_waiting(cb_info, api, -1);
+
+       muse_core_msg_free(msg);
+
+       return;
+}
+
+
+static void _camera_msg_send_param2_int(int api, camera_cb_info_s *cb_info,
+       int *ret, camera_msg_param *param0, camera_msg_param *param1, int timeout)
+{
+       int func_ret = CAMERA_ERROR_NONE;
+       int send_ret = 0;
+       char *msg = NULL;
+
+       if (!cb_info || !param0 || !param1) {
+               LOGE("invalid ptr %p %p %p : api %d",
+                       cb_info, param0, param1, api);
+               func_ret = CAMERA_ERROR_INVALID_PARAMETER;
+               goto _SEND_PARAM2_INT_DONE;
+       }
+
+       /*LOGD("api %d, param0 [%s:%d], param1 [%s:%d]",
+               api,
+               param0->name, param0->value.value_INT,
+               param1->name, param1->value.value_INT);*/
+
+       msg = muse_core_msg_new(api,
+               param0->type, param0->name, param0->value.value_INT,
+               param1->type, param1->name, param1->value.value_INT,
+               NULL);
+       if (!msg) {
+               LOGE("msg failed: api %d", api);
+               func_ret = CAMERA_ERROR_OUT_OF_MEMORY;
+               goto _SEND_PARAM2_INT_DONE;
+       }
+
+       /*LOGD("send msg [%s]", msg);*/
+
+       if (cb_info->is_server_connected) {
+               __camera_update_api_waiting(cb_info, api, 1);
+
+               g_mutex_lock(&cb_info->fd_lock);
+               send_ret = muse_core_msg_send(cb_info->fd, msg);
+               g_mutex_unlock(&cb_info->fd_lock);
+       }
+
+       if (send_ret < 0) {
+               LOGE("msg send failed");
+
+               func_ret = CAMERA_ERROR_INVALID_OPERATION;
+       } else {
+               func_ret = _camera_client_wait_for_cb_return(api, cb_info, timeout);
+       }
+
+       __camera_update_api_waiting(cb_info, api, -1);
+
+       muse_core_msg_free(msg);
+
+_SEND_PARAM2_INT_DONE:
+       if (ret)
+               *ret = func_ret;
+
+       return;
+}
+
+
+static void _camera_msg_return_buffer(int ret_fd, camera_cb_info_s *cb_info)
+{
+       camera_msg_param param;
+
+       if (ret_fd < 0) {
+               LOGW("invalid fd %d", ret_fd);
+               return;
        }
 
-       g_mutex_unlock(&(cb_info->api_mutex[api]));
+       CAMERA_MSG_PARAM_SET(param, INT, ret_fd);
 
-       return ret;
+       _camera_msg_send_param1(MUSE_CAMERA_API_RETURN_BUFFER, cb_info, NULL, &param, 0);
+
+       return;
 }
 
+
 int _camera_get_tbm_surface_format(int in_format, uint32_t *out_format)
 {
        if (in_format <= MM_PIXEL_FORMAT_INVALID ||
@@ -320,6 +901,7 @@ int _camera_get_tbm_surface_format(int in_format, uint32_t *out_format)
        case MM_PIXEL_FORMAT_NV12T:
                *out_format = TBM_FORMAT_NV12;
                break;
+//LCOV_EXCL_START
        case MM_PIXEL_FORMAT_NV16:
                *out_format = TBM_FORMAT_NV16;
                break;
@@ -357,6 +939,7 @@ int _camera_get_tbm_surface_format(int in_format, uint32_t *out_format)
        default:
                LOGE("invalid in_format %d", in_format);
                return CAMERA_ERROR_INVALID_PARAMETER;
+//LCOV_EXCL_STOP
        }
 
        return CAMERA_ERROR_NONE;
@@ -377,6 +960,7 @@ int _camera_get_media_packet_mimetype(int in_format, media_format_mimetype_e *mi
        case MM_PIXEL_FORMAT_NV12T:
                *mimetype = MEDIA_FORMAT_NV12;
                break;
+//LCOV_EXCL_START
        case MM_PIXEL_FORMAT_NV16:
                *mimetype = MEDIA_FORMAT_NV16;
                break;
@@ -414,12 +998,13 @@ int _camera_get_media_packet_mimetype(int in_format, media_format_mimetype_e *mi
        default:
                LOGE("invalid in_format %d", in_format);
                return CAMERA_ERROR_INVALID_PARAMETER;
+//LCOV_EXCL_STOP
        }
 
        return CAMERA_ERROR_NONE;
 }
 
-void _camera_preview_frame_create(camera_stream_data_s *stream, int num_buffer_key,
+static void _camera_preview_frame_create(camera_stream_data_s *stream, int num_buffer_fd,
        tbm_bo_handle *buffer_bo_handle, tbm_bo_handle *data_bo_handle, camera_preview_data_s *frame)
 {
        int total_size = 0;
@@ -441,10 +1026,11 @@ void _camera_preview_frame_create(camera_stream_data_s *stream, int num_buffer_k
        frame->timestamp = stream->timestamp;
        frame->num_of_planes = stream->num_planes;
 
-       if (num_buffer_key == 0) {
+       if (num_buffer_fd == 0) {
+//LCOV_EXCL_START
                /* non-zero copy */
-               if (data_bo_handle == NULL || data_bo_handle->ptr == NULL) {
-                       LOGE("no data pointer");
+               if (!data_bo_handle || !data_bo_handle->ptr) {
+                       LOGE("NULL pointer");
                        return;
                }
 
@@ -454,6 +1040,15 @@ void _camera_preview_frame_create(camera_stream_data_s *stream, int num_buffer_k
                        frame->data.encoded_plane.data = buf_pos;
                        frame->data.encoded_plane.size = stream->data.encoded.length_data;
                        total_size = stream->data.encoded.length_data;
+               } else if (stream->format == MM_PIXEL_FORMAT_INVZ) {
+                       frame->data.depth_plane.data = buf_pos;
+                       frame->data.depth_plane.size = stream->data.depth.length_data;
+                       total_size = stream->data.depth.length_data;
+               } else if (stream->format == MM_PIXEL_FORMAT_RGBA ||
+                       stream->format == MM_PIXEL_FORMAT_ARGB) {
+                       frame->data.rgb_plane.data = buf_pos;
+                       frame->data.rgb_plane.size = stream->data.rgb.length_data;
+                       total_size = stream->data.rgb.length_data;
                } else {
                        switch (stream->num_planes) {
                        case 1:
@@ -487,17 +1082,20 @@ void _camera_preview_frame_create(camera_stream_data_s *stream, int num_buffer_k
                                break;
                        }
                }
+//LCOV_EXCL_STOP
        } else {
                /* zero copy */
                switch (stream->num_planes) {
+//LCOV_EXCL_START
                case 1:
                        frame->data.single_plane.yuv = buffer_bo_handle[0].ptr;
                        frame->data.single_plane.size = stream->data.yuv420.length_yuv;
                        total_size = stream->data.yuv420.length_yuv;
                        break;
+//LCOV_EXCL_STOP
                case 2:
                        frame->data.double_plane.y = buffer_bo_handle[0].ptr;
-                       if (stream->num_planes == (unsigned int)num_buffer_key)
+                       if (stream->num_planes == (unsigned int)num_buffer_fd)
                                frame->data.double_plane.uv = buffer_bo_handle[1].ptr;
                        else
                                frame->data.double_plane.uv = buffer_bo_handle[0].ptr + stream->data.yuv420sp.length_y;
@@ -507,8 +1105,9 @@ void _camera_preview_frame_create(camera_stream_data_s *stream, int num_buffer_k
                                stream->data.yuv420sp.length_uv;
                        break;
                case 3:
+//LCOV_EXCL_START
                        frame->data.triple_plane.y = buffer_bo_handle[0].ptr;
-                       if (stream->num_planes == (unsigned int)num_buffer_key) {
+                       if (stream->num_planes == (unsigned int)num_buffer_fd) {
                                frame->data.triple_plane.u = buffer_bo_handle[1].ptr;
                                frame->data.triple_plane.v = buffer_bo_handle[2].ptr;
                        } else {
@@ -522,6 +1121,7 @@ void _camera_preview_frame_create(camera_stream_data_s *stream, int num_buffer_k
                                stream->data.yuv420p.length_u + \
                                stream->data.yuv420p.length_v;
                        break;
+//LCOV_EXCL_STOP
                default:
                        break;
                }
@@ -535,24 +1135,39 @@ void _camera_preview_frame_create(camera_stream_data_s *stream, int num_buffer_k
        return;
 }
 
-int _camera_media_packet_data_create(int tbm_key, int num_buffer_key, tbm_bo bo,
+static int _camera_media_packet_data_create(int ret_fd, int *tfd, int num_buffer_fd, tbm_bo bo,
        tbm_bo *buffer_bo, tbm_bo data_bo, camera_media_packet_data **mp_data)
 {
        int i = 0;
        int ret = CAMERA_ERROR_NONE;
        camera_media_packet_data *tmp_mp_data = NULL;
 
+       if (!tfd) {
+               LOGE("NULL tfd");
+               return CAMERA_ERROR_INVALID_PARAMETER;
+       }
+
        if (*mp_data == NULL) {
                tmp_mp_data = g_new0(camera_media_packet_data, 1);
                if (tmp_mp_data) {
-                       tmp_mp_data->tbm_key = tbm_key;
-                       tmp_mp_data->num_buffer_key = num_buffer_key;
+                       tmp_mp_data->ret_fd = ret_fd;
+                       tmp_mp_data->fd = tfd[0];
+                       tmp_mp_data->num_buffer_fd = num_buffer_fd;
                        tmp_mp_data->bo = bo;
-                       tmp_mp_data->data_bo = data_bo;
-                       tmp_mp_data->ref_cnt++;
 
-                       for (i = 0 ; i < num_buffer_key ; i++)
-                               tmp_mp_data->buffer_bo[i] = buffer_bo[i];
+                       if (data_bo) {
+                               /* non-zero copy */
+                               tmp_mp_data->data_bo = data_bo;
+                               tmp_mp_data->data_fd = tfd[1];
+                       } else {
+                               /* zero copy */
+                               for (i = 0 ; i < num_buffer_fd ; i++) {
+                                       tmp_mp_data->buffer_bo[i] = buffer_bo[i];
+                                       tmp_mp_data->buffer_fd[i] = (tbm_fd)tfd[i + 1];
+                               }
+                       }
+
+                       tmp_mp_data->ref_cnt++;
 
                        *mp_data = tmp_mp_data;
                        /*LOGD("mp_data %p", tmp_mp_data);*/
@@ -567,34 +1182,41 @@ int _camera_media_packet_data_create(int tbm_key, int num_buffer_key, tbm_bo bo,
        return ret;
 }
 
-void _camera_media_packet_data_release(camera_media_packet_data *mp_data, camera_cb_info_s *cb_info)
+static void _camera_media_packet_data_release(camera_media_packet_data *mp_data, camera_cb_info_s *cb_info)
 {
        int i = 0;
-       int tbm_key = 0;
 
-       if (mp_data == NULL || cb_info == NULL) {
-               LOGE("NULL data %p or cb_info %p", mp_data, cb_info);
+       if (!mp_data || !cb_info) {
+               LOGE("NULL pointer %p %p", mp_data, cb_info);
                return;
        }
 
        if (mp_data->ref_cnt > 1) {
                mp_data->ref_cnt--;
-               LOGD("mp_data is still referenced(current %d)", mp_data->ref_cnt);
+               LOGD("ref count %d", mp_data->ref_cnt);
        } else {
-               /* release imported bo */
-               for (i = 0 ; i < mp_data->num_buffer_key ; i++) {
+               /* release imported bo and close imported fd */
+               for (i = 0 ; i < mp_data->num_buffer_fd ; i++) {
                        tbm_bo_unref(mp_data->buffer_bo[i]);
                        mp_data->buffer_bo[i] = NULL;
+
+                       close(mp_data->buffer_fd[i]);
+                       mp_data->buffer_fd[i] = -1;
                }
 
-               /* unref tbm bo */
-               _release_imported_bo(&mp_data->bo);
-               _release_imported_bo(&mp_data->data_bo);
+               /* unref tbm bo and close imported fd */
+               close(mp_data->fd);
+               mp_data->fd = -1;
+               _camera_release_imported_bo(&mp_data->bo);
+
+               if (mp_data->data_bo && mp_data->data_fd >= 0) {
+                       close(mp_data->data_fd);
+                       mp_data->data_fd = -1;
+               }
+               _camera_release_imported_bo(&mp_data->data_bo);
 
                /* return buffer */
-               tbm_key = mp_data->tbm_key;
-               muse_camera_msg_send1_no_return(MUSE_CAMERA_API_RETURN_BUFFER,
-                       cb_info->fd, cb_info, INT, tbm_key);
+               _camera_msg_return_buffer(mp_data->ret_fd, cb_info);
 
                g_free(mp_data);
                mp_data = NULL;
@@ -603,7 +1225,7 @@ void _camera_media_packet_data_release(camera_media_packet_data *mp_data, camera
        return;
 }
 
-int _camera_media_packet_create(camera_cb_info_s *cb_info, camera_stream_data_s *stream,
+static int _camera_media_packet_create(camera_cb_info_s *cb_info, camera_stream_data_s *stream,
        camera_media_packet_data *mp_data, media_packet_h *packet)
 {
        media_packet_h pkt = NULL;
@@ -614,7 +1236,7 @@ int _camera_media_packet_create(camera_cb_info_s *cb_info, camera_stream_data_s
        uint32_t bo_format = 0;
        int ret = 0;
        int i = 0;
-       int num_buffer_key = 0;
+       int num_buffer_fd = 0;
        tbm_bo *buffer_bo = NULL;
 
        if (cb_info == NULL || stream == NULL || mp_data == NULL || packet == NULL) {
@@ -625,7 +1247,7 @@ int _camera_media_packet_create(camera_cb_info_s *cb_info, camera_stream_data_s
 
        memset(&tsurf_info, 0x0, sizeof(tbm_surface_info_s));
        buffer_bo = mp_data->buffer_bo;
-       num_buffer_key = mp_data->num_buffer_key;
+       num_buffer_fd = mp_data->num_buffer_fd;
 
        /* create tbm surface */
        for (i = 0 ; i < BUFFER_MAX_PLANE_NUM ; i++)
@@ -642,24 +1264,25 @@ int _camera_media_packet_create(camera_cb_info_s *cb_info, camera_stream_data_s
                tsurf_info.bpp = tbm_surface_internal_get_bpp(bo_format);
                tsurf_info.num_planes = tbm_surface_internal_get_num_planes(bo_format);
 
-               if (num_buffer_key > 0) {
+               if (num_buffer_fd > 0) {
                        switch (bo_format) {
                        case TBM_FORMAT_NV12:
                        case TBM_FORMAT_NV21:
                                tsurf_info.planes[0].size = stream->stride[0] * stream->elevation[0];
                                tsurf_info.planes[1].size = stream->stride[1] * stream->elevation[1];
                                tsurf_info.planes[0].offset = 0;
-                               if (num_buffer_key == 1)
+                               if (num_buffer_fd == 1)
                                        tsurf_info.planes[1].offset = tsurf_info.planes[0].size;
                                tsurf_info.size = tsurf_info.planes[0].size + tsurf_info.planes[1].size;
                                break;
+//LCOV_EXCL_START
                        case TBM_FORMAT_YUV420:
                        case TBM_FORMAT_YVU420:
                                tsurf_info.planes[0].size = stream->stride[0] * stream->elevation[0];
                                tsurf_info.planes[1].size = stream->stride[1] * stream->elevation[1];
                                tsurf_info.planes[2].size = stream->stride[2] * stream->elevation[2];
                                tsurf_info.planes[0].offset = 0;
-                               if (num_buffer_key == 1) {
+                               if (num_buffer_fd == 1) {
                                        tsurf_info.planes[1].offset = tsurf_info.planes[0].size;
                                        tsurf_info.planes[2].offset = tsurf_info.planes[0].size + tsurf_info.planes[1].size;
                                }
@@ -673,10 +1296,12 @@ int _camera_media_packet_create(camera_cb_info_s *cb_info, camera_stream_data_s
                                break;
                        default:
                                break;
+//LCOV_EXCL_STOP
                        }
 
-                       tsurf = tbm_surface_internal_create_with_bos(&tsurf_info, buffer_bo, num_buffer_key);
+                       tsurf = tbm_surface_internal_create_with_bos(&tsurf_info, buffer_bo, num_buffer_fd);
                } else if (mp_data->data_bo) {
+//LCOV_EXCL_START
                        switch (bo_format) {
                        case TBM_FORMAT_NV12:
                        case TBM_FORMAT_NV21:
@@ -707,6 +1332,7 @@ int _camera_media_packet_create(camera_cb_info_s *cb_info, camera_stream_data_s
                        }
 
                        tsurf = tbm_surface_internal_create_with_bos(&tsurf_info, &mp_data->data_bo, 1);
+//LCOV_EXCL_STOP
                }
                /*LOGD("tbm surface %p", tsurf);*/
        }
@@ -722,8 +1348,8 @@ int _camera_media_packet_create(camera_cb_info_s *cb_info, camera_stream_data_s
                        if (pkt_fmt_mimetype != mimetype ||
                            pkt_fmt_width != stream->width ||
                            pkt_fmt_height != stream->height) {
-                               LOGW("different format. current 0x%x, %dx%d, new 0x%x, %dx%d",
-                                    pkt_fmt_mimetype, pkt_fmt_width, pkt_fmt_height, mimetype, stream->width, stream->height);
+                               LOGW("change fmt: current 0x%x, %dx%d",
+                                    pkt_fmt_mimetype, pkt_fmt_width, pkt_fmt_height);
                                media_format_unref(cb_info->pkt_fmt);
                                cb_info->pkt_fmt = NULL;
                                make_pkt_fmt = true;
@@ -734,15 +1360,15 @@ int _camera_media_packet_create(camera_cb_info_s *cb_info, camera_stream_data_s
 
                /* create packet format */
                if (make_pkt_fmt) {
-                       LOGW("make new pkt_fmt - mimetype 0x%x, %dx%d", mimetype, stream->width, stream->height);
+                       LOGW("make new pkt_fmt - 0x%x, %dx%d", mimetype, stream->width, stream->height);
                        ret = media_format_create(&cb_info->pkt_fmt);
                        if (ret == MEDIA_FORMAT_ERROR_NONE) {
                                ret = media_format_set_video_mime(cb_info->pkt_fmt, mimetype);
                                ret |= media_format_set_video_width(cb_info->pkt_fmt, stream->width);
                                ret |= media_format_set_video_height(cb_info->pkt_fmt, stream->height);
-                               LOGW("media_format_set_video_mime,width,height ret : 0x%x", ret);
+                               LOGW("media_format_set : 0x%x", ret);
                        } else {
-                               LOGW("media_format_create failed");
+                               LOGW("media_format_create failed 0x%x", ret);
                        }
                }
 
@@ -751,19 +1377,17 @@ int _camera_media_packet_create(camera_cb_info_s *cb_info, camera_stream_data_s
                        tsurf, (media_packet_finalize_cb)_camera_media_packet_finalize,
                        (void *)cb_info, &pkt);
                if (ret != MEDIA_PACKET_ERROR_NONE) {
-                       LOGE("media_packet_create_from_tbm_surface failed");
-
+                       LOGE("media_packet_create failed 0x%x", ret);
                        tbm_surface_destroy(tsurf);
                        tsurf = NULL;
                }
        } else {
-               LOGE("failed to create tbm surface %dx%d, format %d, num_buffer_key %d, data_bo %p",
-                    stream->width, stream->height, stream->format, num_buffer_key, mp_data->data_bo);
+               LOGE("tbm surface failed. %dx%d, format %d, num_buffer_fd %d, data_bo %p",
+                       stream->width, stream->height, stream->format, num_buffer_fd, mp_data->data_bo);
        }
 
        if (pkt) {
-               LOGD("media packet %p, internal buffer %p", pkt, stream->internal_buffer);
-
+               /*LOGD("media packet %p, internal buffer %p", pkt, stream->internal_buffer);*/
                /* set media packet data */
                ret = media_packet_set_extra(pkt, (void *)mp_data);
                if (ret != MEDIA_PACKET_ERROR_NONE) {
@@ -793,8 +1417,8 @@ int _camera_media_packet_finalize(media_packet_h pkt, int error_code, void *user
        camera_media_packet_data *mp_data = NULL;
        tbm_surface_h tsurf = NULL;
 
-       if (pkt == NULL || cb_info == NULL) {
-               LOGE("invalid parameter buffer %p, cb_info %p", pkt, cb_info);
+       if (!pkt || !cb_info) {
+               LOGE("NULL pointer %p %p", pkt, cb_info);
                return MEDIA_PACKET_FINALIZE;
        }
 
@@ -814,10 +1438,8 @@ int _camera_media_packet_finalize(media_packet_h pkt, int error_code, void *user
        g_mutex_unlock(&cb_info->mp_data_mutex);
 
        ret = media_packet_get_tbm_surface(pkt, &tsurf);
-       if (ret != MEDIA_PACKET_ERROR_NONE) {
-               LOGE("media_packet_get_tbm_surface failed 0x%x", ret);
-               return MEDIA_PACKET_FINALIZE;
-       }
+       if (ret != MEDIA_PACKET_ERROR_NONE)
+               LOGE("get tbm_surface failed 0x%x", ret);
 
        if (tsurf) {
                tbm_surface_destroy(tsurf);
@@ -827,31 +1449,36 @@ int _camera_media_packet_finalize(media_packet_h pkt, int error_code, void *user
        return MEDIA_PACKET_FINALIZE;
 }
 
-static void _client_user_callback(camera_cb_info_s *cb_info, char *recv_msg, muse_camera_event_e event)
+static void _camera_client_user_callback(camera_cb_info_s *cb_info, char *recv_msg, muse_camera_event_e event, int *tfd)
 {
        int param1 = 0;
        int param2 = 0;
-       int tbm_key = 0;
-       tbm_bo bo = NULL;
-       tbm_bo_handle bo_handle = {NULL, };
 
-       if (recv_msg == NULL || event >= MUSE_CAMERA_EVENT_TYPE_NUM) {
+       if (!recv_msg || event >= MUSE_CAMERA_EVENT_TYPE_NUM) {
                LOGE("invalid parameter - camera msg %p, event %d", recv_msg, event);
                return;
        }
 
        /*LOGD("get camera msg %s, event %d", recv_msg, event);*/
 
-       if (event == MUSE_CAMERA_EVENT_TYPE_PREVIEW) {
-               if (!(CHECK_PREVIEW_CB(cb_info, PREVIEW_CB_TYPE_EVAS)) &&
-                       cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_PREVIEW] == NULL &&
-                       cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW] == NULL) {
-                       LOGW("all preview callback from user are NULL");
+       g_mutex_lock(&cb_info->user_cb_mutex[event]);
+
+       if (cb_info->user_cb[event] == NULL) {
+               if (event != MUSE_CAMERA_EVENT_TYPE_PREVIEW &&
+                       event != MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW &&
+                       event != MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION &&
+                       event != MUSE_CAMERA_EVENT_TYPE_CAPTURE) {
+                       g_mutex_unlock(&cb_info->user_cb_mutex[event]);
+                       LOGW("NULL callback for event %d, return here", event);
                        return;
                }
-       } else if (cb_info->user_cb[event] == NULL) {
-               LOGW("user callback for event %d is not set", event);
-               return;
+
+               /* return buffer message should be sent for some events.
+                - MUSE_CAMERA_EVENT_TYPE_PREVIEW
+                - MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW
+                - MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION
+                - MUSE_CAMERA_EVENT_TYPE_CAPTURE
+               */
        }
 
        switch (event) {
@@ -866,7 +1493,7 @@ static void _client_user_callback(camera_cb_info_s *cb_info, char *recv_msg, mus
                        muse_camera_msg_get(by_policy, recv_msg);
 
                        LOGD("STATE CHANGE - previous %d, current %d, by_policy %d",
-                            previous, current, by_policy);
+                               previous, current, by_policy);
 
                        ((camera_state_changed_cb)cb_info->user_cb[event])((camera_state_e)previous,
                                (camera_state_e)current, (bool)by_policy, cb_info->user_data[event]);
@@ -889,165 +1516,16 @@ static void _client_user_callback(camera_cb_info_s *cb_info, char *recv_msg, mus
                break;
        case MUSE_CAMERA_EVENT_TYPE_PREVIEW:
        case MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW:
-               {
-                       int e_type = MUSE_CAMERA_EVENT_TYPE_PREVIEW;
-                       int i = 0;
-                       int ret = 0;
-                       int num_buffer_key = 0;
-                       int buffer_key[BUFFER_MAX_PLANE_NUM] = {0, };
-                       int data_key = 0;
-                       unsigned char *buf_pos = NULL;
-
-                       tbm_bo buffer_bo[BUFFER_MAX_PLANE_NUM] = {NULL, };
-                       tbm_bo_handle buffer_bo_handle[BUFFER_MAX_PLANE_NUM] = {{.ptr = NULL}, };
-                       tbm_bo data_bo = NULL;
-                       tbm_bo_handle data_bo_handle = {.ptr = NULL};
-
-                       camera_preview_data_s frame;
-                       camera_stream_data_s *stream = NULL;
-                       camera_media_packet_data *mp_data = NULL;
-                       media_packet_h pkt = NULL;
-
-                       muse_camera_msg_get(tbm_key, recv_msg);
-                       muse_camera_msg_get(num_buffer_key, recv_msg);
-                       muse_camera_msg_get_array(buffer_key, recv_msg);
-                       muse_camera_msg_get(data_key, recv_msg);
-
-                       memset(&frame, 0x0, sizeof(camera_preview_data_s));
-
-                       if (tbm_key <= 0) {
-                               LOGE("invalid key %d", tbm_key);
-                               break;
-                       }
-
-                       if (data_key > 0) {
-                               /* import tbm data_bo and get virtual address */
-                               if (!_import_tbm_key(cb_info->bufmgr, data_key, &data_bo, &data_bo_handle)) {
-                                       LOGE("failed to import data key %d", data_key);
-                                       muse_camera_msg_send1_no_return(MUSE_CAMERA_API_RETURN_BUFFER,
-                                                       cb_info->fd, cb_info, INT, tbm_key);
-                                       break;
-                               }
-                       }
-
-                       /* import tbm bo and get virtual address */
-                       if (!_import_tbm_key(cb_info->bufmgr, tbm_key, &bo, &bo_handle)) {
-                               LOGE("failed to import key %d", tbm_key);
-                               _release_imported_bo(&data_bo);
-                               muse_camera_msg_send1_no_return(MUSE_CAMERA_API_RETURN_BUFFER,
-                                       cb_info->fd, cb_info, INT, tbm_key);
-                               break;
-                       }
-
-                       buf_pos = (unsigned char *)bo_handle.ptr;
-
-                       /* get stream info */
-                       stream = (camera_stream_data_s *)buf_pos;
-
-                       for (i = 0 ; i < num_buffer_key ; i++) {
-                               /* import buffer bo and get virtual address */
-                               if (!_import_tbm_key(cb_info->bufmgr, buffer_key[i], &buffer_bo[i], &buffer_bo_handle[i])) {
-                                       LOGE("failed to import buffer key %d", buffer_key[i]);
-
-                                       /* release imported bo */
-                                       _release_imported_bo(&data_bo);
-                                       _release_imported_bo(&bo);
-
-                                       for (i -= 1 ; i >= 0 ; i--)
-                                               _release_imported_bo(&buffer_bo[i]);
-
-                                       /* send return buffer */
-                                       muse_camera_msg_send1_no_return(MUSE_CAMERA_API_RETURN_BUFFER,
-                                               cb_info->fd, cb_info, INT, tbm_key);
-
-                                       return;
-                               }
-                       }
-
-                       /* call preview callback */
-                       if (cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_PREVIEW]) {
-                               _camera_preview_frame_create(stream, num_buffer_key, buffer_bo_handle, &data_bo_handle, &frame);
-
-                               e_type = MUSE_CAMERA_EVENT_TYPE_PREVIEW;
-                               ((camera_preview_cb)cb_info->user_cb[e_type])(&frame, cb_info->user_data[e_type]);
-                       }
-
-                       /* call media packet callback */
-                       if (cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW]) {
-                               ret = _camera_media_packet_data_create(tbm_key, num_buffer_key, bo, buffer_bo, data_bo, &mp_data);
-
-                               if (ret == CAMERA_ERROR_NONE) {
-                                       ret = _camera_media_packet_create(cb_info, stream, mp_data, &pkt);
-
-                                       e_type = MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW;
-                                       if (ret == CAMERA_ERROR_NONE) {
-                                               ((camera_media_packet_preview_cb)cb_info->user_cb[e_type])(pkt, cb_info->user_data[e_type]);
-                                       } else {
-                                               _camera_media_packet_data_release(mp_data, cb_info);
-                                               mp_data = NULL;
-                                       }
-                               }
-                       }
-
-                       /* call evas renderer */
-                       if (CHECK_PREVIEW_CB(cb_info, PREVIEW_CB_TYPE_EVAS)) {
-#ifdef TIZEN_FEATURE_EVAS_RENDERER
-                               ret = _camera_media_packet_data_create(tbm_key, num_buffer_key, bo, buffer_bo, data_bo, &mp_data);
-
-                               if (ret == CAMERA_ERROR_NONE) {
-                                       ret = _camera_media_packet_create(cb_info, stream, mp_data, &pkt);
-
-                                       if (ret == CAMERA_ERROR_NONE) {
-                                               g_mutex_lock(&cb_info->evas_mutex);
-
-                                               if (cb_info->run_evas_render)
-                                                       mm_evas_renderer_write(pkt, cb_info->evas_info);
-                                               else {
-                                                       LOGW("evas renderer is stopped, skip this buffer...");
-                                                       media_packet_destroy(pkt);
-                                               }
-
-                                               pkt = NULL;
-
-                                               g_mutex_unlock(&cb_info->evas_mutex);
-                                       } else {
-                                               _camera_media_packet_data_release(mp_data, cb_info);
-                                               mp_data = NULL;
-                                       }
-                               }
-#else /* TIZEN_FEATURE_EVAS_RENDERER */
-                               LOGW("evas renderer is not supported");
-#endif /* TIZEN_FEATURE_EVAS_RENDERER */
-                       }
-
-                       /* send message for preview callback return */
-                       if (!CHECK_PREVIEW_CB(cb_info, PREVIEW_CB_TYPE_EVAS))
-                               muse_camera_msg_send_no_return(MUSE_CAMERA_API_PREVIEW_CB_RETURN, cb_info->fd, cb_info);
-
-                       if (mp_data == NULL) {
-                               /* release imported bo */
-                               for (i = 0 ; i < num_buffer_key ; i++)
-                                       _release_imported_bo(&buffer_bo[i]);
-
-                               /* unmap and unref tbm bo */
-                               _release_imported_bo(&data_bo);
-                               _release_imported_bo(&bo);
-
-                               /* return buffer */
-                               muse_camera_msg_send1_no_return(MUSE_CAMERA_API_RETURN_BUFFER,
-                                       cb_info->fd, cb_info, INT, tbm_key);
-
-                               /*LOGD("return buffer Done");*/
-                       }
-               }
+               __camera_event_handler_preview(cb_info, recv_msg, tfd);
                break;
+//LCOV_EXCL_START
        case MUSE_CAMERA_EVENT_TYPE_HDR_PROGRESS:
                {
                        int percent = 0;
 
                        muse_camera_msg_get(percent, recv_msg);
 
-                       LOGD("HDR progress - %d \%", percent);
+                       LOGD("HDR progress - %d %%", percent);
 
                        ((camera_attr_hdr_progress_cb)cb_info->user_cb[event])(percent, cb_info->user_data[event]);
                }
@@ -1062,56 +1540,29 @@ static void _client_user_callback(camera_cb_info_s *cb_info, char *recv_msg, mus
                        muse_camera_msg_get(previous, recv_msg);
                        muse_camera_msg_get(current, recv_msg);
 
-                       LOGD("INTERRUPTED - policy %d, state previous %d, current %d",
-                            policy, previous, current);
+                       LOGW("INTERRUPTED - policy %d, state %d -> %d", policy, previous, current);
 
                        ((camera_interrupted_cb)cb_info->user_cb[event])((camera_policy_e)policy,
                                (camera_state_e)previous, (camera_state_e)current, cb_info->user_data[event]);
                }
                break;
-       case MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION:
+       case MUSE_CAMERA_EVENT_TYPE_INTERRUPT_STARTED:
                {
-                       int count = 0;
-                       camera_detected_face_s *faces = NULL;
-
-                       muse_camera_msg_get(count, recv_msg);
-                       muse_camera_msg_get(tbm_key, recv_msg);
-
-                       if (count > 0 && tbm_key > 0) {
-                               LOGD("FACE_DETECTION - count %d, tbm_key %d", count, tbm_key);
-
-                               if (!_import_tbm_key(cb_info->bufmgr, tbm_key, &bo, &bo_handle))
-                                       break;
-
-                               /* set face info */
-                               faces = bo_handle.ptr;
-
-                               ((camera_face_detected_cb)cb_info->user_cb[event])(faces, count, cb_info->user_data[event]);
-
-#if 0
-                               {
-                                       int i = 0;
-
-                                       for (i = 0 ; i < count ; i++) {
-                                               LOGD("id[%2d] - score %d, position (%d,%d,%dx%d)",
-                                                    i, faces[i].score, faces[i].x, faces[i].y, faces[i].width, faces[i].height);
-                                       }
-                               }
-#endif
+                       int policy = 0;
+                       int state = 0;
 
-                               /* release bo */
-                               _release_imported_bo(&bo);
+                       muse_camera_msg_get(policy, recv_msg);
+                       muse_camera_msg_get(state, recv_msg);
 
-                               /* return buffer */
-                               muse_camera_msg_send1_no_return(MUSE_CAMERA_API_RETURN_BUFFER,
-                                       cb_info->fd, cb_info, INT, tbm_key);
+                       LOGW("INTERRUPT_STARTED - policy %d, state %d", policy, state);
 
-                               /*LOGD("return buffer done");*/
-                       } else {
-                               LOGE("invalid message - count %d, key %d", count, tbm_key);
-                       }
+                       ((camera_interrupt_started_cb)cb_info->user_cb[event])((camera_policy_e)policy,
+                               (camera_state_e)state, cb_info->user_data[event]);
                }
                break;
+       case MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION:
+               __camera_event_handler_face_detection(cb_info, recv_msg, tfd);
+               break;
        case MUSE_CAMERA_EVENT_TYPE_ERROR:
                {
                        int error = 0;
@@ -1126,439 +1577,201 @@ static void _client_user_callback(camera_cb_info_s *cb_info, char *recv_msg, mus
                                (camera_state_e)current_state, cb_info->user_data[event]);
                }
                break;
+//LCOV_EXCL_STOP
        case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_PREVIEW_RESOLUTION:
-               muse_camera_msg_get(param1, recv_msg);
-               muse_camera_msg_get(param2, recv_msg);
-
-               /*LOGD("SUPPORTED_PREVIEW_RESOLUTION - %d x %d", param1, param2);*/
-
-               if (((camera_supported_preview_resolution_cb)cb_info->user_cb[event])(param1, param2, cb_info->user_data[event]) == false) {
-                       cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_PREVIEW_RESOLUTION");
-               }
-               break;
+               /* fall through */
        case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_CAPTURE_RESOLUTION:
                muse_camera_msg_get(param1, recv_msg);
                muse_camera_msg_get(param2, recv_msg);
 
-               /*LOGD("SUPPORTED_CAPTURE_RESOLUTION - %d x %d", param1, param2);*/
-
-               if (((camera_supported_capture_resolution_cb)cb_info->user_cb[event])(param1, param2, cb_info->user_data[event]) == false) {
-                       cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_CAPTURE_RESOLUTION");
-               }
-               break;
-       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_CAPTURE_FORMAT:
-               muse_camera_msg_get(param1, recv_msg);
-
-               /*LOGD("SUPPORTED_CAPTURE_FORMAT - %d ", param1);*/
-
-               if (((camera_supported_capture_format_cb)cb_info->user_cb[event])((camera_pixel_format_e)param1, cb_info->user_data[event]) == false) {
-                       cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_CAPTURE_FORMAT");
-               }
-               break;
-       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_PREVIEW_FORMAT:
-               muse_camera_msg_get(param1, recv_msg);
-
-               /*LOGD("SUPPORTED_PREVIEW_FORMAT - %d ", param1);*/
-
-               if (((camera_supported_preview_format_cb)cb_info->user_cb[event])((camera_pixel_format_e)param1, cb_info->user_data[event]) == false) {
-                       cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_PREVIEW_FORMAT");
-               }
-               break;
-       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_AF_MODE:
-               muse_camera_msg_get(param1, recv_msg);
-
-               /*LOGD("SUPPORTED_AF_MODE - %d ", param1);*/
-
-               if (((camera_attr_supported_af_mode_cb)cb_info->user_cb[event])((camera_attr_af_mode_e)param1, cb_info->user_data[event]) == false) {
-                       cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_AF_MODE");
-               }
-               break;
-       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_EXPOSURE_MODE:
-               muse_camera_msg_get(param1, recv_msg);
-
-               /*LOGD("SUPPORTED_EXPOSURE_MODE - %d ", param1);*/
-
-               if (((camera_attr_supported_exposure_mode_cb)cb_info->user_cb[event])((camera_attr_exposure_mode_e)param1, cb_info->user_data[event]) == false) {
-                       cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_EXPOSURE_MODE");
-               }
-               break;
-       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_ISO:
-               muse_camera_msg_get(param1, recv_msg);
-
-               /*LOGD("SUPPORTED_ISO - %d ", param1);*/
-
-               if (((camera_attr_supported_iso_cb)cb_info->user_cb[event])((camera_attr_iso_e)param1, cb_info->user_data[event]) == false) {
-                       cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_ISO");
-               }
-               break;
-       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_WHITEBALANCE:
-               muse_camera_msg_get(param1, recv_msg);
-
-               /*LOGD("SUPPORTED_WHITEBALANCE - %d ", param1);*/
-
-               if (((camera_attr_supported_whitebalance_cb)cb_info->user_cb[event])((camera_attr_whitebalance_e)param1, cb_info->user_data[event]) == false) {
-                       cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_WHITEBALANCE");
-               }
-               break;
-       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_EFFECT:
-               muse_camera_msg_get(param1, recv_msg);
-
-               /*LOGD("SUPPORTED_EFFECT - %d ", param1);*/
-
-               if (((camera_attr_supported_effect_cb)cb_info->user_cb[event])((camera_attr_effect_mode_e)param1, cb_info->user_data[event]) == false) {
-                       cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_EFFECT");
-               }
-               break;
-       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_SCENE_MODE:
-               muse_camera_msg_get(param1, recv_msg);
-
-               /*LOGD("SUPPORTED_SCENE_MODE - %d ", param1);*/
-
-               if (((camera_attr_supported_scene_mode_cb)cb_info->user_cb[event])((camera_attr_scene_mode_e)param1, cb_info->user_data[event]) == false) {
-                       cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_SCENE_MODE");
-               }
-               break;
-       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_FLASH_MODE:
-               muse_camera_msg_get(param1, recv_msg);
-
-               /*LOGD("SUPPORTED_FLASH_MODE - %d ", param1);*/
-
-               if (((camera_attr_supported_flash_mode_cb)cb_info->user_cb[event])((camera_attr_flash_mode_e)param1, cb_info->user_data[event]) == false) {
-                       cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_FLASH_MODE");
-               }
-               break;
-       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_FPS:
-               muse_camera_msg_get(param1, recv_msg);
-
-               /*LOGD("SUPPORTED_FPS - %d ", param1);*/
-
-               if (((camera_attr_supported_fps_cb)cb_info->user_cb[event])((camera_attr_fps_e)param1, cb_info->user_data[event]) == false) {
-                       cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_FPS");
-               }
-               break;
-       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_FPS_BY_RESOLUTION:
-               muse_camera_msg_get(param1, recv_msg);
-
-               /*LOGD("SUPPORTED_FPS_BY_RESOLUTION - %d ", param1);*/
-
-               if (((camera_attr_supported_fps_cb)cb_info->user_cb[event])((camera_attr_fps_e)param1, cb_info->user_data[event]) == false) {
-                       cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_FPS_BY_RESOLUTION");
-               }
-               break;
-       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_STREAM_FLIP:
-               muse_camera_msg_get(param1, recv_msg);
-
-               /*LOGD("SUPPORTED_STREAM_FLIP - %d ", param1);*/
-
-               if (((camera_attr_supported_stream_flip_cb)cb_info->user_cb[event])((camera_flip_e)param1, cb_info->user_data[event]) == false) {
-                       cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_STREAM_FLIP");
-               }
-               break;
-       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_STREAM_ROTATION:
-               muse_camera_msg_get(param1, recv_msg);
-
-               /*LOGD("SUPPORTED_STREAM_ROTATION - %d ", param1);*/
-
-               if (((camera_attr_supported_stream_rotation_cb)cb_info->user_cb[event])((camera_rotation_e)param1, cb_info->user_data[event]) == false) {
-                       cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_STREAM_ROTATION");
-               }
-               break;
-       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_THEATER_MODE:
-               muse_camera_msg_get(param1, recv_msg);
-
-               /*LOGD("SUPPORTED_THEATER_MODE - %d ", param1);*/
-
-               if (((camera_attr_supported_theater_mode_cb)cb_info->user_cb[event])((camera_attr_theater_mode_e)param1, cb_info->user_data[event]) == false) {
-                       cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_THEATER_MODE");
-               }
-               break;
-       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_PTZ_TYPE:
-               muse_camera_msg_get(param1, recv_msg);
-
-               /*LOGD("SUPPORTED_PTZ_TYPE - %d ", param1);*/
+               /*LOGD("event %d SUPPORTED %d, %d", event, param1, param2);*/
 
-               if (((camera_attr_supported_ptz_type_cb)cb_info->user_cb[event])((camera_attr_ptz_type_e)param1, cb_info->user_data[event]) == false) {
+               if (((camera_supported_cb_param2)cb_info->user_cb[event])(param1, param2, cb_info->user_data[event]) == false) {
                        cb_info->user_cb[event] = NULL;
-                       cb_info->user_data[event] = NULL;
-                       LOGW("stop foreach callback for SUPPORTED_PTZ_TYPE");
-               }
-               break;
-       case MUSE_CAMERA_EVENT_TYPE_CAPTURE:
-               {
-                       camera_image_data_s *rImage = NULL;
-                       camera_image_data_s *rPostview = NULL;
-                       camera_image_data_s *rThumbnail = NULL;
-                       unsigned char *buf_pos = NULL;
-                       int tbm_key_main = 0;
-                       int tbm_key_post = 0;
-                       int tbm_key_thumb = 0;
-                       tbm_bo bo_main = NULL;
-                       tbm_bo bo_post = NULL;
-                       tbm_bo bo_thumb = NULL;
-                       tbm_bo_handle bo_main_handle = {NULL, };
-                       tbm_bo_handle bo_post_handle = {NULL, };
-                       tbm_bo_handle bo_thumb_handle = {NULL, };
-
-                       muse_camera_msg_get(tbm_key_main, recv_msg);
-                       muse_camera_msg_get(tbm_key_post, recv_msg);
-                       muse_camera_msg_get(tbm_key_thumb, recv_msg);
-
-                       /*
-                       LOGD("camera capture callback came in. tbm_key_main %d, tbm_key_post %d, tbm_key_thumb %d",
-                               tbm_key_main, tbm_key_post, tbm_key_thumb);
-                       */
-
-                       if (tbm_key_main <= 0) {
-                               LOGE("invalid tbm_key_main %d", tbm_key_main);
-                               break;
-                       }
-
-                       /* import tbm bo and get virtual address */
-                       if (!_import_tbm_key(cb_info->bufmgr, tbm_key_main, &bo_main, &bo_main_handle))
-                               break;
-
-                       buf_pos = (unsigned char *)bo_main_handle.ptr;
-                       rImage = (camera_image_data_s *)buf_pos;
-                       rImage->data = buf_pos + sizeof(camera_image_data_s);
-
-                       LOGD("image info %dx%d, size : %d", rImage->width, rImage->height, rImage->size);
-
-                       if (tbm_key_post > 0) {
-                               /* import tbm bo and get virtual address */
-                               if (!_import_tbm_key(cb_info->bufmgr, tbm_key_post, &bo_post, &bo_post_handle))
-                                       break;
-
-                               buf_pos = (unsigned char *)bo_post_handle.ptr;
-                               rPostview = (camera_image_data_s *)buf_pos;
-                               LOGD("rPostview->size : %d", rPostview->size);
-                               rPostview->data = buf_pos + sizeof(camera_image_data_s);
-                       }
-
-                       if (tbm_key_thumb > 0) {
-                               /* import tbm bo and get virtual address */
-                               if (!_import_tbm_key(cb_info->bufmgr, tbm_key_thumb, &bo_thumb, &bo_thumb_handle))
-                                       break;
-
-                               buf_pos = (unsigned char *)bo_thumb_handle.ptr;
-
-                               rThumbnail = (camera_image_data_s *)buf_pos;
-                               LOGD("rThumbnail->size : %d", rThumbnail->size);
-                               rThumbnail->data = buf_pos + sizeof(camera_image_data_s);
-                       }
-
-                       ((camera_capturing_cb)cb_info->user_cb[event])(rImage, rPostview, rThumbnail, cb_info->user_data[event]);
-
-                       /* unmap and unref tbm bo */
-                       _release_imported_bo(&bo_main);
-
-                       /* return buffer */
-                       tbm_key = tbm_key_main;
-                       muse_camera_msg_send1_no_return(MUSE_CAMERA_API_RETURN_BUFFER,
-                               cb_info->fd, cb_info, INT, tbm_key);
-
-                       if (tbm_key_post > 0) {
-                               /* unmap and unref tbm bo */
-                               _release_imported_bo(&bo_post);
-
-                               /* return buffer */
-                               tbm_key = tbm_key_post;
-                               muse_camera_msg_send1_no_return(MUSE_CAMERA_API_RETURN_BUFFER,
-                                       cb_info->fd, cb_info, INT, tbm_key);
-                       }
-
-                       if (tbm_key_thumb > 0) {
-                               /* unmap and unref tbm bo */
-                               _release_imported_bo(&bo_thumb);
+                       cb_info->user_data[event] = NULL;
+                       LOGW("stop foreach callback for event %d", event);
+               }
+               break;
+       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_CAPTURE_FORMAT:
+               /* fall through */
+       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_PREVIEW_FORMAT:
+               /* fall through */
+       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_AF_MODE:
+               /* fall through */
+       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_EXPOSURE_MODE:
+               /* fall through */
+       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_ISO:
+               /* fall through */
+       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_WHITEBALANCE:
+               /* fall through */
+       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_EFFECT:
+               /* fall through */
+       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_SCENE_MODE:
+               /* fall through */
+       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_FLASH_MODE:
+               /* fall through */
+       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_FPS:
+               /* fall through */
+       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_FPS_BY_RESOLUTION:
+               /* fall through */
+       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_STREAM_FLIP:
+               /* fall through */
+       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_STREAM_ROTATION:
+               /* fall through */
+//LCOV_EXCL_START
+       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_THEATER_MODE:
+               /* fall through */
+       case MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_PTZ_TYPE:
+               muse_camera_msg_get(param1, recv_msg);
 
-                               /* return buffer */
-                               tbm_key = tbm_key_thumb;
-                               muse_camera_msg_send1_no_return(MUSE_CAMERA_API_RETURN_BUFFER,
-                                       cb_info->fd, cb_info, INT, tbm_key);
-                       }
+               /*LOGD("event %d SUPPORTED %d ", event, param1);*/
 
-                       LOGD("return buffer done");
+               if (((camera_supported_cb_param1)cb_info->user_cb[event])(param1, cb_info->user_data[event]) == false) {
+                       cb_info->user_cb[event] = NULL;
+                       cb_info->user_data[event] = NULL;
+                       LOGW("stop foreach callback for event %d", event);
                }
                break;
-       case MUSE_CAMERA_EVENT_TYPE_VIDEO_FRAME_RENDER_ERROR:
+//LCOV_EXCL_STOP
+       case MUSE_CAMERA_EVENT_TYPE_CAPTURE:
+               __camera_event_handler_capture(cb_info, recv_msg, tfd);
                break;
        default:
-               LOGW("Unknown event : %d", event);
+               LOGW("unhandled event %d", event);
                break;
        }
 
+       g_mutex_unlock(&cb_info->user_cb_mutex[event]);
+
        return;
 }
 
-static bool _camera_idle_event_callback(void *data)
+static gboolean _camera_idle_event_callback(gpointer data)
 {
        camera_cb_info_s *cb_info = NULL;
        camera_idle_event_s *cam_idle_event = (camera_idle_event_s *)data;
 
        if (cam_idle_event == NULL) {
                LOGE("cam_idle_event is NULL");
-               return false;
+               return FALSE;
        }
 
        /* lock event */
-       g_mutex_lock(&cam_idle_event->event_mutex);
+       g_mutex_lock(&g_cam_idle_event_lock);
 
        cb_info = cam_idle_event->cb_info;
        if (cb_info == NULL) {
-               LOGW("camera cb_info is NULL. event %d", cam_idle_event->event);
+               LOGW("camera cb_info is NULL. event %p %d", cam_idle_event, cam_idle_event->event);
+               g_mutex_unlock(&g_cam_idle_event_lock);
                goto IDLE_EVENT_CALLBACK_DONE;
        }
 
        /* remove event from list */
-       g_mutex_lock(&cb_info->idle_event_mutex);
        if (cb_info->idle_event_list)
                cb_info->idle_event_list = g_list_remove(cb_info->idle_event_list, (gpointer)cam_idle_event);
 
-       /*LOGD("remove camera idle event %p, %p", cam_idle_event, cb_info->idle_event_list);*/
-       g_mutex_unlock(&cb_info->idle_event_mutex);
+       g_mutex_unlock(&g_cam_idle_event_lock);
 
        /* user callback */
-       _client_user_callback(cam_idle_event->cb_info, cam_idle_event->recv_msg, cam_idle_event->event);
-
-       /* send signal for waiting thread */
-       g_cond_signal(&cb_info->idle_event_cond);
+       _camera_client_user_callback(cb_info, cam_idle_event->recv_msg, cam_idle_event->event, cam_idle_event->tfd);
 
 IDLE_EVENT_CALLBACK_DONE:
-       /* unlock and release event */
-       g_mutex_unlock(&cam_idle_event->event_mutex);
-       g_mutex_clear(&cam_idle_event->event_mutex);
-
+       /* release event */
        g_free(cam_idle_event);
        cam_idle_event = NULL;
 
-       return false;
+       return FALSE;
 }
 
-static void *_camera_msg_handler_func(gpointer data)
+static gpointer _camera_msg_handler_func(gpointer data)
 {
-       int ret = 0;
        int api = 0;
-       int event = 0;
-       int event_class = 0;
+       int type = 0;
        camera_message_s *cam_msg = NULL;
        camera_idle_event_s *cam_idle_event = NULL;
-       camera_cb_info_s *cb_info = (camera_cb_info_s *)data;
+       camera_msg_handler_info_s *handler_info = (camera_msg_handler_info_s *)data;
+       camera_cb_info_s *cb_info = NULL;
 
-       if (cb_info == NULL) {
-               LOGE("cb_info NULL");
+       if (!handler_info || !handler_info->cb_info) {
+               LOGE("NULL handler %p", handler_info);
                return NULL;
        }
 
-       LOGD("start");
+       cb_info = (camera_cb_info_s *)handler_info->cb_info;
+       type = handler_info->type;
+
+       LOGD("t:%d start", type);
 
-       g_mutex_lock(&cb_info->msg_handler_mutex);
+       g_mutex_lock(&handler_info->mutex);
 
-       while (g_atomic_int_get(&cb_info->msg_handler_running)) {
-               if (g_queue_is_empty(cb_info->msg_queue)) {
-                       /*LOGD("signal wait...");*/
-                       g_cond_wait(&cb_info->msg_handler_cond, &cb_info->msg_handler_mutex);
-                       /*LOGD("signal received");*/
+       while (g_atomic_int_get(&handler_info->running)) {
+               if (g_queue_is_empty(handler_info->queue)) {
+                       /*LOGD("t:%d signal wait...", type);*/
+                       g_cond_wait(&handler_info->cond, &handler_info->mutex);
+                       /*LOGD("t:%d signal received", type);*/
 
-                       if (g_atomic_int_get(&cb_info->msg_handler_running) == 0) {
-                               LOGD("stop event thread");
+                       if (g_atomic_int_get(&handler_info->running) == 0) {
+                               LOGD("t:%d stop event thread", type);
                                break;
                        }
                }
 
-               cam_msg = (camera_message_s *)g_queue_pop_head(cb_info->msg_queue);
+               cam_msg = (camera_message_s *)g_queue_pop_head(handler_info->queue);
 
-               g_mutex_unlock(&cb_info->msg_handler_mutex);
+               g_mutex_unlock(&handler_info->mutex);
 
                if (cam_msg == NULL) {
-                       LOGE("NULL message");
-                       g_mutex_lock(&cb_info->msg_handler_mutex);
+                       LOGE("t:%d NULL message", type);
+                       g_mutex_lock(&handler_info->mutex);
                        continue;
                }
 
                api = cam_msg->api;
 
                if (api < MUSE_CAMERA_API_MAX) {
+                       int ret = 0;
+
                        g_mutex_lock(&cb_info->api_mutex[api]);
 
                        if (muse_camera_msg_get(ret, cam_msg->recv_msg)) {
-                               cb_info->api_ret[api] = ret;
-                               cb_info->api_activating[api] = 1;
+                               if (cb_info->api_waiting[api] > 0) {
+                                       cb_info->api_ret[api] = ret;
+                                       cb_info->api_activating[api] = 1;
 
-                               /*LOGD("camera api %d - return 0x%x", ret);*/
+                                       /*LOGD("t:%d camera api %d - return 0x%x", type, ret);*/
 
-                               g_cond_signal(&cb_info->api_cond[api]);
+                                       g_cond_signal(&cb_info->api_cond[api]);
+                               } else {
+                                       LOGW("no waiting for this api [%d]", api);
+                               }
                        } else {
-                               LOGE("failed to get camera ret for api %d, msg %s", api, cam_msg->recv_msg);
+                               LOGE("t:%d failed to get camera ret for api %d, msg %s", type, api, cam_msg->recv_msg);
                        }
 
                        g_mutex_unlock(&cb_info->api_mutex[api]);
                } else if (api == MUSE_CAMERA_CB_EVENT) {
-                       event = -1;
-                       event_class = -1;
-
-                       if (!muse_camera_msg_get(event, cam_msg->recv_msg) ||
-                           !muse_camera_msg_get(event_class, cam_msg->recv_msg)) {
-                               LOGE("failed to get camera event %d, class %d", event, event_class);
-
-                               g_free(cam_msg);
-                               cam_msg = NULL;
-
-                               g_mutex_lock(&cb_info->msg_handler_mutex);
-                               continue;
-                       }
-
-                       switch (event_class) {
+                       switch (cam_msg->event_class) {
                        case MUSE_CAMERA_EVENT_CLASS_THREAD_SUB:
-                               _client_user_callback(cb_info, cam_msg->recv_msg, event);
+                               _camera_client_user_callback(cb_info, cam_msg->recv_msg, cam_msg->event, cam_msg->tfd);
                                break;
                        case MUSE_CAMERA_EVENT_CLASS_THREAD_MAIN:
                                cam_idle_event = g_new0(camera_idle_event_s, 1);
                                if (cam_idle_event == NULL) {
-                                       LOGE("cam_idle_event alloc failed");
+                                       LOGE("t:%d cam_idle_event alloc failed", type);
                                        break;
                                }
 
-                               cam_idle_event->event = event;
+                               cam_idle_event->event = cam_msg->event;
                                cam_idle_event->cb_info = cb_info;
-                               g_mutex_init(&cam_idle_event->event_mutex);
-                               memcpy(cam_idle_event->recv_msg, cam_msg->recv_msg, sizeof(cam_idle_event->recv_msg));
 
-                               /*LOGD("add camera event[%d, %p] to IDLE", event, cam_idle_event);*/
+                               strncpy(cam_idle_event->recv_msg, cam_msg->recv_msg, sizeof(cam_idle_event->recv_msg) - 1);
+                               memcpy(cam_idle_event->tfd, cam_msg->tfd, sizeof(cam_idle_event->tfd));
+
+                               /*LOGD("t:%d add camera event[%d, %p] to IDLE", type, cam_msg->event, cam_idle_event);*/
 
-                               g_mutex_lock(&cb_info->idle_event_mutex);
+                               g_mutex_lock(&g_cam_idle_event_lock);
                                cb_info->idle_event_list = g_list_append(cb_info->idle_event_list, (gpointer)cam_idle_event);
-                               g_mutex_unlock(&cb_info->idle_event_mutex);
+                               g_mutex_unlock(&g_cam_idle_event_lock);
 
                                g_idle_add_full(G_PRIORITY_DEFAULT,
                                        (GSourceFunc)_camera_idle_event_callback,
@@ -1566,269 +1779,433 @@ static void *_camera_msg_handler_func(gpointer data)
                                        NULL);
                                break;
                        default:
-                               LOGE("unknown camera event class %d", event_class);
+                               LOGE("t:%d not handled event class %d", type, cam_msg->event_class);
                                break;
                        }
                } else {
-                       LOGE("unknown camera api[%d] message[%s]", api, cam_msg->recv_msg);
+                       LOGE("t:%d unknown camera api[%d] message[%s]", type, api, cam_msg->recv_msg);
                }
 
                g_free(cam_msg);
                cam_msg = NULL;
 
-               g_mutex_lock(&cb_info->msg_handler_mutex);
+               g_mutex_lock(&handler_info->mutex);
        }
 
        /* remove remained event */
-       while (!g_queue_is_empty(cb_info->msg_queue)) {
-               cam_msg = (camera_message_s *)g_queue_pop_head(cb_info->msg_queue);
+       while (!g_queue_is_empty(handler_info->queue)) {
+               cam_msg = (camera_message_s *)g_queue_pop_head(handler_info->queue);
                if (cam_msg) {
-                       LOGD("remove camera message %p", cam_msg);
+                       LOGD("t:%d remove camera message %p", type, cam_msg);
                        free(cam_msg);
                        cam_msg = NULL;
                } else {
-                       LOGW("NULL camera message");
+                       LOGW("t:%d NULL camera message", type);
                }
        }
 
-       g_mutex_unlock(&cb_info->msg_handler_mutex);
+       g_mutex_unlock(&handler_info->mutex);
 
-       LOGD("return");
+       LOGD("t:%d return", type);
 
        return NULL;
 }
 
-static void _camera_remove_idle_event_all(camera_cb_info_s *cb_info)
+
+static void _camera_deactivate_idle_event_all(camera_cb_info_s *cb_info)
 {
        camera_idle_event_s *cam_idle_event = NULL;
-       gboolean ret = TRUE;
        GList *list = NULL;
-       gint64 end_time = 0;
 
        if (cb_info == NULL) {
                LOGE("cb_info is NULL");
                return;
        }
 
-       g_mutex_lock(&cb_info->idle_event_mutex);
+       g_mutex_lock(&g_cam_idle_event_lock);
 
        if (cb_info->idle_event_list == NULL) {
-               LOGD("No idle event is remained.");
+               LOGD("No remained idle event");
+               g_mutex_unlock(&g_cam_idle_event_lock);
+               return;
+       }
+
+       list = cb_info->idle_event_list;
+
+       while (list) {
+               cam_idle_event = list->data;
+               list = g_list_next(list);
+
+               if (!cam_idle_event) {
+                       LOGW("Fail to remove idle event. The event is NULL");
+                       continue;
+               }
+
+               if (g_idle_remove_by_data(cam_idle_event)) {
+                       LOGW("remove idle event %p done", cam_idle_event);
+
+                       cb_info->idle_event_list = g_list_remove(cb_info->idle_event_list, (gpointer)cam_idle_event);
+
+                       g_free(cam_idle_event);
+                       cam_idle_event = NULL;
+
+                       continue;
+               }
+
+               LOGW("set NULL cb_info for event %p %d, it will be freed on idle callback",
+                       cam_idle_event, cam_idle_event->event);
+
+               cam_idle_event->cb_info = NULL;
+
+               cb_info->idle_event_list = g_list_remove(cb_info->idle_event_list, (gpointer)cam_idle_event);
+       }
+
+       g_list_free(cb_info->idle_event_list);
+       cb_info->idle_event_list = NULL;
+
+       g_mutex_unlock(&g_cam_idle_event_lock);
+
+       return;
+}
+
+
+static void __camera_add_msg_to_queue(camera_cb_info_s *cb_info, int api, int event, int event_class, char *msg, int *tfd)
+{
+       camera_message_s *cam_msg = NULL;
+
+       if (!cb_info || !msg) {
+               LOGE("NULL pointer %p %p", cb_info, msg);
+               return;
+       }
+
+       cam_msg = g_new0(camera_message_s, 1);
+       if (!cam_msg) {
+               LOGE("failed to alloc cam_msg for [%s]", msg);
+               return;
+       }
+
+       cam_msg->api = api;
+       cam_msg->event = event;
+       cam_msg->event_class = event_class;
+
+       if (tfd && tfd[0] >= 0)
+               memcpy(cam_msg->tfd, tfd, sizeof(cam_msg->tfd));
+
+       strncpy(cam_msg->recv_msg, msg, sizeof(cam_msg->recv_msg) - 1);
+
+       /*LOGD("add camera message to queue : api %d, event %d, event_class %d", api, event, event_class);*/
+
+       if (event == MUSE_CAMERA_EVENT_TYPE_PREVIEW) {
+               g_mutex_lock(&cb_info->preview_cb_info.mutex);
+               g_queue_push_tail(cb_info->preview_cb_info.queue, (gpointer)cam_msg);
+               g_cond_signal(&cb_info->preview_cb_info.cond);
+               g_mutex_unlock(&cb_info->preview_cb_info.mutex);
+       } else if (event == MUSE_CAMERA_EVENT_TYPE_CAPTURE) {
+               g_mutex_lock(&cb_info->capture_cb_info.mutex);
+               g_queue_push_tail(cb_info->capture_cb_info.queue, (gpointer)cam_msg);
+               g_cond_signal(&cb_info->capture_cb_info.cond);
+               g_mutex_unlock(&cb_info->capture_cb_info.mutex);
        } else {
-               list = cb_info->idle_event_list;
+               g_mutex_lock(&cb_info->msg_handler_info.mutex);
+               g_queue_push_tail(cb_info->msg_handler_info.queue, (gpointer)cam_msg);
+               g_cond_signal(&cb_info->msg_handler_info.cond);
+               g_mutex_unlock(&cb_info->msg_handler_info.mutex);
+       }
 
-               while (list) {
-                       cam_idle_event = list->data;
-                       list = g_list_next(list);
+       cam_msg = NULL;
 
-                       if (!cam_idle_event) {
-                               LOGW("Fail to remove idle event. The event is NULL");
-                       } else {
-                               if (g_mutex_trylock(&cam_idle_event->event_mutex)) {
-                                       ret = g_idle_remove_by_data(cam_idle_event);
+       return;
+}
 
-                                       LOGD("remove idle event [%p], ret[%d]", cam_idle_event, ret);
 
-                                       if (ret == FALSE) {
-                                               cam_idle_event->cb_info = NULL;
-                                               LOGW("idle callback for event %p will be called later", cam_idle_event);
-                                       }
+static void __camera_process_msg(camera_cb_info_s *cb_info, char *msg, int *tfd)
+{
+       int ret = CAMERA_ERROR_NONE;
+       int api = -1;
+       int api_class = -1;
+       int event = -1;
+       int event_class = -1;
+       int get_type = -1;
+       int get_index = -1;
+
+       if (!cb_info || !msg) {
+               LOGE("invalid ptr %p %p", cb_info, msg);
+               return;
+       }
 
-                                       cb_info->idle_event_list = g_list_remove(cb_info->idle_event_list, (gpointer)cam_idle_event);
+       /*LOGD("msg [%s]", msg);*/
 
-                                       g_mutex_unlock(&cam_idle_event->event_mutex);
+       if (!muse_camera_msg_get(api, msg)) {
+               LOGE("failed to get camera api");
+               return;
+       }
 
-                                       if (ret == TRUE) {
-                                               g_mutex_clear(&cam_idle_event->event_mutex);
+       if (api == MUSE_CAMERA_CB_EVENT) {
+               if (!muse_camera_msg_get(event, msg) ||
+                       !muse_camera_msg_get(event_class, msg)) {
+                       LOGE("failed to get camera event or event_class [%s]", msg);
+                       return;
+               }
+       } else {
+               if (!muse_camera_msg_get(api_class, msg)) {
+                       LOGE("failed to get camera api_class [%s]", msg);
+                       return;
+               }
+       }
 
-                                               g_free(cam_idle_event);
-                                               cam_idle_event = NULL;
+       if (api_class == MUSE_CAMERA_API_CLASS_IMMEDIATE) {
+               if (api >= MUSE_CAMERA_API_MAX) {
+                       LOGE("invalid api %d", api);
+                       return;
+               }
 
-                                               LOGD("remove idle event done");
-                                       }
-                               } else {
-                                       LOGW("event lock failed. it's being called...");
+               if (!muse_camera_msg_get(ret, msg)) {
+                       LOGE("failed to get camera ret");
+                       return;
+               }
 
-                                       end_time = g_get_monotonic_time() + G_TIME_SPAN_MILLISECOND * 100;
+               g_mutex_lock(&cb_info->api_mutex[api]);
 
-                                       if (g_cond_wait_until(&cb_info->idle_event_cond, &cb_info->idle_event_mutex, end_time))
-                                               LOGW("signal received");
-                                       else
-                                               LOGW("timeout");
+               switch (api) {
+               case MUSE_CAMERA_API_CREATE:
+                       if (ret != CAMERA_ERROR_NONE) {
+                               g_atomic_int_set(&cb_info->msg_recv_running, 0);
+                               LOGE("camera create error 0x%x. close client cb handler", ret);
+                       }
+                       break;
+               case MUSE_CAMERA_API_DESTROY:
+                       if (ret == CAMERA_ERROR_NONE) {
+                               g_atomic_int_set(&cb_info->msg_recv_running, 0);
+                               LOGD("camera destroy done. close client cb handler");
+                       }
+                       break;
+               default:
+                       muse_camera_msg_get(get_type, msg);
+                       if (get_type != MUSE_CAMERA_GET_TYPE_NONE) {
+                               if (get_type != MUSE_CAMERA_GET_TYPE_ARRAY)
+                                       muse_camera_msg_get(get_index, msg);
+
+                               switch (get_type) {
+                               case MUSE_CAMERA_GET_TYPE_INT:
+                                       muse_core_msg_deserialize("get_value", msg, NULL, NULL, MUSE_TYPE_INT, &cb_info->get_int[get_index]);
+                                       break;
+                               case MUSE_CAMERA_GET_TYPE_INT_PAIR:
+                                       muse_core_msg_deserialize("get_value0", msg, NULL, NULL, MUSE_TYPE_INT, &cb_info->get_int_pair[get_index][0]);
+                                       muse_core_msg_deserialize("get_value1", msg, NULL, NULL, MUSE_TYPE_INT, &cb_info->get_int_pair[get_index][1]);
+                                       break;
+                               case MUSE_CAMERA_GET_TYPE_ARRAY:
+                                       if (api == MUSE_CAMERA_API_GET_DISPLAY_ROI_AREA) {
+                                               muse_core_msg_deserialize("get_value",
+                                                       msg, NULL, NULL, MUSE_TYPE_ARRAY, cb_info->get_display_roi_area);
+                                               LOGD("get display roi %d,%d,%dx%d",
+                                                       cb_info->get_display_roi_area[0],
+                                                       cb_info->get_display_roi_area[1],
+                                                       cb_info->get_display_roi_area[2],
+                                                       cb_info->get_display_roi_area[3]);
+                                       } else {
+                                               muse_core_msg_deserialize("get_value",
+                                                       msg, NULL, NULL, MUSE_TYPE_ARRAY, cb_info->get_geotag);
+                                               LOGD("get geotag %lf, %lf, %lf",
+                                                       cb_info->get_geotag[0], cb_info->get_geotag[1], cb_info->get_geotag[2]);
+                                       }
+                                       break;
+                               case MUSE_CAMERA_GET_TYPE_STRING:
+                                       muse_core_msg_deserialize("get_value", msg, NULL, NULL, MUSE_TYPE_STRING, cb_info->get_string[get_index]);
+                                       break;
+                               default:
+                                       LOGW("unknown type %d", get_type);
+                                       break;
                                }
                        }
+                       break;
                }
 
-               g_list_free(cb_info->idle_event_list);
-               cb_info->idle_event_list = NULL;
-       }
+               if (cb_info->api_waiting[api] > 0) {
+                       cb_info->api_ret[api] = ret;
+                       cb_info->api_activating[api] = 1;
+
+                       g_cond_signal(&cb_info->api_cond[api]);
+               } else {
+                       LOGW("no waiting for this api [%d]", api);
+               }
 
-       g_mutex_unlock(&cb_info->idle_event_mutex);
+               g_mutex_unlock(&cb_info->api_mutex[api]);
+       } else if (api_class == MUSE_CAMERA_API_CLASS_THREAD_SUB || api == MUSE_CAMERA_CB_EVENT) {
+               __camera_add_msg_to_queue(cb_info, api, event, event_class, msg, tfd);
+       } else {
+               LOGW("unknown camera api %d, class %d", api, api_class);
+       }
 
        return;
 }
 
-static void *_camera_msg_recv_func(gpointer data)
+
+static gpointer _camera_msg_recv_func(gpointer data)
 {
        int i = 0;
-       int ret = 0;
-       int api = 0;
-       int api_class = 0;
-       int num_token = 0;
-       int str_pos = 0;
-       int prev_pos = 0;
+       int recv_length = 0;
+       int tfd[MUSE_NUM_FD] = {-1, -1, -1, -1};
        char *recv_msg = NULL;
-       char **parse_str = NULL;
        camera_cb_info_s *cb_info = (camera_cb_info_s *)data;
 
-       if (cb_info == NULL) {
+       if (!cb_info) {
                LOGE("cb_info NULL");
                return NULL;
        }
 
-       LOGD("start");
+       LOGD("start - fd : %d", cb_info->fd);
 
-       parse_str = (char **)malloc(sizeof(char *) * CAMERA_PARSE_STRING_SIZE);
-       if (parse_str == NULL) {
-               LOGE("parse_str malloc failed");
-               return NULL;
-       }
+       recv_msg = cb_info->recv_msg;
+
+       while (g_atomic_int_get(&cb_info->msg_recv_running)) {
+               for (i = 0 ; i < MUSE_NUM_FD ; i++)
+                       tfd[i] = -1;
 
-       for (i = 0 ; i < CAMERA_PARSE_STRING_SIZE ; i++) {
-               parse_str[i] = (char *)malloc(sizeof(char) * MUSE_CAMERA_MSG_MAX_LENGTH);
-               if (parse_str[i] == NULL) {
-                       LOGE("parse_str[%d] malloc failed", i);
-                       goto CB_HANDLER_EXIT;
+               recv_length = muse_core_msg_recv_fd(cb_info->fd, recv_msg, MUSE_MSG_MAX_LENGTH, tfd);
+               if (recv_length <= 0) {
+                       cb_info->is_server_connected = FALSE;
+                       LOGE("receive msg failed - server disconnected");
+                       break;
                }
+
+               /*
+               if (tfd[0] >= 0)
+                       LOGD("%d %d %d %d", tfd[0], tfd[1], tfd[2], tfd[3]);
+               */
+
+               recv_msg[recv_length] = '\0';
+
+               /*LOGD("recv msg : %s, length : %d", recv_msg, recv_length);*/
+
+               __camera_process_msg(cb_info, recv_msg, tfd);
        }
 
-       recv_msg = cb_info->recv_msg;
+       LOGD("client cb exit - server connected %d", cb_info->is_server_connected);
 
-       while (g_atomic_int_get(&cb_info->msg_recv_running)) {
-               ret = muse_core_ipc_recv_msg(cb_info->fd, recv_msg);
-               if (ret <= 0)
-                       break;
-               recv_msg[ret] = '\0';
-
-               str_pos = 0;
-               prev_pos = 0;
-               num_token = 0;
-
-               /*LOGD("recvMSg : %s, length : %d", recv_msg, ret);*/
-
-               /* Need to split the combined entering msgs.
-                   This module supports up to 200 combined msgs. */
-               for (str_pos = 0; str_pos < ret; str_pos++) {
-                       if (recv_msg[str_pos] == '}') {
-                               memset(parse_str[num_token], 0x0, sizeof(char) * MUSE_CAMERA_MSG_MAX_LENGTH);
-                               strncpy(parse_str[num_token], recv_msg + prev_pos, str_pos - prev_pos + 1);
-                               /*LOGD("splitted msg : [%s], Index : %d", parse_str[num_token], num_token);*/
-                               prev_pos = str_pos+1;
-                               num_token++;
-                       }
+       if (!cb_info->is_server_connected) {
+               char *error_msg = NULL;
+
+               if (cb_info->bufmgr == NULL) {
+                       LOGE("No need to send error(handle is not created)");
+                       return NULL;
                }
 
-               /*LOGD("num_token : %d", num_token);*/
+               if (cb_info->fd < 0) {
+                       LOGE("fd is closed in client side");
+                       return NULL;
+               }
 
-               /* Re-construct to the useful single msg. */
-               for (i = 0; i < num_token; i++) {
-                       if (i >= CAMERA_PARSE_STRING_SIZE) {
-                               LOGE("invalid token index %d", i);
-                               break;
-                       }
+               /* send error msg for server disconnection */
+               error_msg = muse_core_msg_new(MUSE_CAMERA_CB_EVENT,
+                       MUSE_TYPE_INT, "error", CAMERA_ERROR_SERVICE_DISCONNECTED,
+                       MUSE_TYPE_INT, "current_state", CAMERA_STATE_NONE,
+                       NULL);
 
-                       api = -1;
-                       api_class = -1;
+               if (!error_msg) {
+                       LOGE("error_msg failed");
+                       return NULL;
+               }
 
-                       if (!muse_camera_msg_get(api, parse_str[i])) {
-                               LOGE("failed to get camera api");
-                               continue;
-                       }
+               __camera_add_msg_to_queue(cb_info,
+                       MUSE_CAMERA_CB_EVENT,
+                       MUSE_CAMERA_EVENT_TYPE_ERROR,
+                       MUSE_CAMERA_EVENT_CLASS_THREAD_MAIN,
+                       error_msg,
+                       NULL);
 
-                       if (api != MUSE_CAMERA_CB_EVENT) {
-                               if (!muse_camera_msg_get(api_class, parse_str[i])) {
-                                       LOGE("failed to get camera api_class");
-                                       continue;
-                               }
-                       }
+               muse_core_msg_free(error_msg);
+               error_msg = NULL;
 
-                       if (api_class == MUSE_CAMERA_API_CLASS_IMMEDIATE) {
-                               if (api >= MUSE_CAMERA_API_MAX) {
-                                       LOGE("invalid api %d", api);
-                                       continue;
-                               }
+               LOGE("add error msg for service disconnection done");
+       }
 
-                               g_mutex_lock(&cb_info->api_mutex[api]);
+       return NULL;
+}
 
-                               if (!muse_camera_msg_get(ret, parse_str[i])) {
-                                       LOGE("failed to get camera ret");
-                                       g_mutex_unlock(&cb_info->api_mutex[api]);
-                                       continue;
-                               }
 
-                               cb_info->api_ret[api] = ret;
-                               cb_info->api_activating[api] = 1;
+static bool __create_msg_handler_thread(camera_msg_handler_info_s *handler_info,
+       int type, const char *thread_name, camera_cb_info_s *cb_info)
+{
+       if (!handler_info || !thread_name || !cb_info) {
+               LOGE("t:%d NULL %p %p %p",
+                       type, handler_info, thread_name, cb_info);
+               return false;
+       }
+
+       LOGD("t:%d", type);
 
-                               if (api == MUSE_CAMERA_API_CREATE) {
-                                       if (ret != CAMERA_ERROR_NONE) {
-                                               g_atomic_int_set(&cb_info->msg_recv_running, 0);
-                                               LOGE("camera create error 0x%x. close client cb handler", ret);
-                                       }
-                               } else if (api == MUSE_CAMERA_API_DESTROY) {
-                                       if (ret == CAMERA_ERROR_NONE) {
-                                               g_atomic_int_set(&cb_info->msg_recv_running, 0);
-                                               LOGD("camera destroy done. close client cb handler");
-                                       }
-                               }
+       handler_info->type = type;
+       handler_info->queue = g_queue_new();
+       if (handler_info->queue == NULL) {
+               LOGE("t:%d queue failed", type);
+               return false;
+       }
 
-                               g_cond_signal(&cb_info->api_cond[api]);
-                               g_mutex_unlock(&cb_info->api_mutex[api]);
-                       } else if (api_class == MUSE_CAMERA_API_CLASS_THREAD_SUB || api == MUSE_CAMERA_CB_EVENT) {
-                               camera_message_s *cam_msg = g_new0(camera_message_s, 1);
-                               if (cam_msg == NULL) {
-                                       LOGE("failed to alloc cam_msg");
-                                       continue;
-                               }
+       g_mutex_init(&handler_info->mutex);
+       g_cond_init(&handler_info->cond);
 
-                               cam_msg->api = api;
-                               memcpy(cam_msg->recv_msg, parse_str[i], sizeof(cam_msg->recv_msg));
+       handler_info->cb_info = (void *)cb_info;
+       g_atomic_int_set(&handler_info->running, 1);
 
-                               /*LOGD("add camera message to queue : api %d", api);*/
+       handler_info->thread = g_thread_try_new(thread_name,
+               _camera_msg_handler_func, (gpointer)handler_info, NULL);
+       if (handler_info->thread == NULL) {
+               LOGE("t:%d thread failed", type);
 
-                               g_mutex_lock(&cb_info->msg_handler_mutex);
-                               g_queue_push_tail(cb_info->msg_queue, (gpointer)cam_msg);
-                               g_cond_signal(&cb_info->msg_handler_cond);
-                               g_mutex_unlock(&cb_info->msg_handler_mutex);
-                       } else {
-                               LOGW("unknown camera api %d and api_class %d", api, api_class);
-                       }
-               }
+               g_mutex_clear(&handler_info->mutex);
+               g_cond_clear(&handler_info->cond);
+               g_queue_free(handler_info->queue);
+               handler_info->queue = NULL;
 
+               return false;
        }
 
-       LOGD("client cb exit");
+       LOGD("t:%d done", type);
 
-CB_HANDLER_EXIT:
-       if (parse_str) {
-               for (i = 0 ; i < CAMERA_PARSE_STRING_SIZE ; i++) {
-                       if (parse_str[i]) {
-                               free(parse_str[i]);
-                               parse_str[i] = NULL;
-                       }
-               }
+       return true;
+}
+
+
+static void __destroy_msg_handler_thread(camera_msg_handler_info_s *handler_info)
+{
+       int type = 0;
 
-               free(parse_str);
-               parse_str = NULL;
+       if (!handler_info) {
+               LOGE("NULL handler");
+               return;
        }
 
-       return NULL;
+       if (!handler_info->thread) {
+               LOGW("thread is not created");
+               return;
+       }
+
+       type = handler_info->type;
+
+       LOGD("t:%d thread %p", type, handler_info->thread);
+
+       g_mutex_lock(&handler_info->mutex);
+       g_atomic_int_set(&handler_info->running, 0);
+       g_cond_signal(&handler_info->cond);
+       g_mutex_unlock(&handler_info->mutex);
+
+       g_thread_join(handler_info->thread);
+       handler_info->thread = NULL;
+
+       g_mutex_clear(&handler_info->mutex);
+       g_cond_clear(&handler_info->cond);
+       g_queue_free(handler_info->queue);
+       handler_info->queue = NULL;
+
+       LOGD("t:%d done", type);
+
+       return;
 }
 
-static camera_cb_info_s *_client_callback_new(gint sockfd)
+
+static camera_cb_info_s *_camera_client_callback_new(gint sockfd)
 {
        camera_cb_info_s *cb_info = NULL;
-       gint *tmp_activating = NULL;
-       gint *tmp_ret = NULL;
        gint i = 0;
 
        g_return_val_if_fail(sockfd > 0, NULL);
@@ -1839,54 +2216,44 @@ static camera_cb_info_s *_client_callback_new(gint sockfd)
                goto ErrorExit;
        }
 
-       g_mutex_init(&cb_info->msg_handler_mutex);
-       g_cond_init(&cb_info->msg_handler_cond);
-       g_mutex_init(&cb_info->idle_event_mutex);
-       g_cond_init(&cb_info->idle_event_cond);
-       g_mutex_init(&cb_info->mp_data_mutex);
-#ifdef TIZEN_FEATURE_EVAS_RENDERER
-       g_mutex_init(&cb_info->evas_mutex);
-#endif /* TIZEN_FEATURE_EVAS_RENDERER */
+       cb_info->api_waiting[MUSE_CAMERA_API_CREATE] = 1;
 
        for (i = 0 ; i < MUSE_CAMERA_API_MAX ; i++) {
                g_mutex_init(&cb_info->api_mutex[i]);
                g_cond_init(&cb_info->api_cond[i]);
        }
 
-       tmp_activating = g_new0(gint, MUSE_CAMERA_API_MAX);
-       if (tmp_activating == NULL) {
-               LOGE("tmp_activating failed");
-               goto ErrorExit;
-       }
+       g_mutex_init(&cb_info->fd_lock);
+       g_mutex_init(&cb_info->mp_data_mutex);
+
+       for (i = 0 ; i < MUSE_CAMERA_EVENT_TYPE_NUM ; i++)
+               g_mutex_init(&cb_info->user_cb_mutex[i]);
 
-       tmp_ret = g_new0(gint, MUSE_CAMERA_API_MAX);
-       if (tmp_ret == NULL) {
-               LOGE("tmp_ret failed");
+       /* message handler thread */
+       if (!__create_msg_handler_thread(&cb_info->msg_handler_info,
+               CAMERA_MESSAGE_HANDLER_TYPE_GENERAL, "camera_msg_handler", cb_info)) {
+               LOGE("msg_handler_info failed");
                goto ErrorExit;
        }
 
-       cb_info->msg_queue = g_queue_new();
-       if (cb_info->msg_queue == NULL) {
-               LOGE("msg_queue new failed");
+       /* message handler thread for preview callback */
+       if (!__create_msg_handler_thread(&cb_info->preview_cb_info,
+               CAMERA_MESSAGE_HANDLER_TYPE_PREVIEW_CB, "camera_msg_handler:preview_cb", cb_info)) {
+               LOGE("preview_cb_info failed");
                goto ErrorExit;
        }
 
-       g_atomic_int_set(&cb_info->msg_handler_running, 1);
-       cb_info->msg_handler_thread = g_thread_try_new("camera_msg_handler",
-               _camera_msg_handler_func, (gpointer)cb_info, NULL);
-       if (cb_info->msg_handler_thread == NULL) {
-               LOGE("message handler thread creation failed");
+       /* message handler thread for capture callback */
+       if (!__create_msg_handler_thread(&cb_info->capture_cb_info,
+               CAMERA_MESSAGE_HANDLER_TYPE_CAPTURE_CB, "camera_msg_handler:capture_cb", cb_info)) {
+               LOGE("capture_cb_info failed");
                goto ErrorExit;
        }
 
        cb_info->fd = sockfd;
-       cb_info->api_activating = tmp_activating;
-       cb_info->api_ret = tmp_ret;
        cb_info->preview_cb_flag = 0;
-#ifdef TIZEN_FEATURE_EVAS_RENDERER
-       cb_info->evas_info = NULL;
-#endif /* TIZEN_FEATURE_EVAS_RENDERER */
 
+       /* message receive thread */
        g_atomic_int_set(&cb_info->msg_recv_running, 1);
        cb_info->msg_recv_thread = g_thread_try_new("camera_msg_recv",
                _camera_msg_recv_func, (gpointer)cb_info, NULL);
@@ -1895,100 +2262,70 @@ static camera_cb_info_s *_client_callback_new(gint sockfd)
                goto ErrorExit;
        }
 
-       return cb_info;
+       /* initialize fd */
+       for (i = 0 ; i < MUSE_NUM_FD ; i++)
+               cb_info->fds[i] = -1;
+
+       cb_info->is_server_connected = TRUE;
 
+       return cb_info;
+//LCOV_EXCL_START
 ErrorExit:
        if (cb_info) {
-               if (cb_info->msg_handler_thread) {
-                       g_mutex_lock(&cb_info->msg_handler_mutex);
-                       g_atomic_int_set(&cb_info->msg_handler_running, 0);
-                       g_cond_signal(&cb_info->msg_handler_cond);
-                       g_mutex_unlock(&cb_info->msg_handler_mutex);
-
-                       g_thread_join(cb_info->msg_handler_thread);
-                       g_thread_unref(cb_info->msg_handler_thread);
-                       cb_info->msg_handler_thread = NULL;
-               }
+               __destroy_msg_handler_thread(&cb_info->msg_handler_info);
+               __destroy_msg_handler_thread(&cb_info->preview_cb_info);
+               __destroy_msg_handler_thread(&cb_info->capture_cb_info);
 
-               for (i = 0 ; i < MUSE_CAMERA_API_MAX ; i++) {
-                       g_mutex_clear(&cb_info->api_mutex[i]);
-                       g_cond_clear(&cb_info->api_cond[i]);
-               }
+               for (i = 0 ; i < MUSE_CAMERA_EVENT_TYPE_NUM ; i++)
+                       g_mutex_clear(&cb_info->user_cb_mutex[i]);
 
-               g_mutex_clear(&cb_info->msg_handler_mutex);
-               g_cond_clear(&cb_info->msg_handler_cond);
-               g_mutex_clear(&cb_info->idle_event_mutex);
-               g_cond_clear(&cb_info->idle_event_cond);
+               g_mutex_clear(&cb_info->fd_lock);
                g_mutex_clear(&cb_info->mp_data_mutex);
-#ifdef TIZEN_FEATURE_EVAS_RENDERER
-               g_mutex_clear(&cb_info->evas_mutex);
-#endif /* TIZEN_FEATURE_EVAS_RENDERER */
 
-               if (cb_info->msg_queue) {
-                       g_queue_free(cb_info->msg_queue);
-                       cb_info->msg_queue = NULL;
+               for (i = 0 ; i < MUSE_CAMERA_API_MAX ; i++) {
+                       g_mutex_clear(&cb_info->api_mutex[i]);
+                       g_cond_clear(&cb_info->api_cond[i]);
                }
 
                g_free(cb_info);
                cb_info = NULL;
        }
 
-       if (tmp_activating) {
-               g_free(tmp_activating);
-               tmp_activating = NULL;
-       }
-       if (tmp_ret) {
-               g_free(tmp_ret);
-               tmp_ret = NULL;
-       }
-
        return NULL;
+//LCOV_EXCL_STOP
 }
 
-static void _client_callback_destroy(camera_cb_info_s *cb_info)
+static void _camera_client_callback_destroy(camera_cb_info_s *cb_info)
 {
-       gint i = 0;
+       int i = 0;
 
        g_return_if_fail(cb_info != NULL);
 
-       LOGD("MSG receive thread[%p] destroy", cb_info->msg_recv_thread);
+       LOGD("msg_recv thread[%p] destroy", cb_info->msg_recv_thread);
 
        g_thread_join(cb_info->msg_recv_thread);
-       g_thread_unref(cb_info->msg_recv_thread);
        cb_info->msg_recv_thread = NULL;
 
-       LOGD("msg thread removed");
+       LOGD("msg_recv thread removed");
 
-       g_mutex_lock(&cb_info->msg_handler_mutex);
-       g_atomic_int_set(&cb_info->msg_handler_running, 0);
-       g_cond_signal(&cb_info->msg_handler_cond);
-       g_mutex_unlock(&cb_info->msg_handler_mutex);
+       /* destroy msg handler threads */
+       __destroy_msg_handler_thread(&cb_info->msg_handler_info);
+       __destroy_msg_handler_thread(&cb_info->preview_cb_info);
+       __destroy_msg_handler_thread(&cb_info->capture_cb_info);
 
-       g_thread_join(cb_info->msg_handler_thread);
-       g_thread_unref(cb_info->msg_handler_thread);
-       cb_info->msg_handler_thread = NULL;
+       for (i = 0 ; i < MUSE_CAMERA_EVENT_TYPE_NUM ; i++)
+               g_mutex_clear(&cb_info->user_cb_mutex[i]);
 
-       g_queue_free(cb_info->msg_queue);
-       cb_info->msg_queue = NULL;
+       g_mutex_clear(&cb_info->fd_lock);
+       g_mutex_clear(&cb_info->mp_data_mutex);
 
        for (i = 0 ; i < MUSE_CAMERA_API_MAX ; i++) {
                g_mutex_clear(&cb_info->api_mutex[i]);
                g_cond_clear(&cb_info->api_cond[i]);
        }
 
-       g_mutex_clear(&cb_info->msg_handler_mutex);
-       g_cond_clear(&cb_info->msg_handler_cond);
-       g_mutex_clear(&cb_info->idle_event_mutex);
-       g_cond_clear(&cb_info->idle_event_cond);
-       g_mutex_clear(&cb_info->mp_data_mutex);
-#ifdef TIZEN_FEATURE_EVAS_RENDERER
-       g_mutex_clear(&cb_info->evas_mutex);
-#endif /* TIZEN_FEATURE_EVAS_RENDERER */
-
-       LOGD("event thread removed");
-
        if (cb_info->fd > -1) {
-               muse_core_connection_close(cb_info->fd);
+               muse_client_close(cb_info->fd);
                cb_info->fd = -1;
        }
 
@@ -1996,23 +2333,15 @@ static void _client_callback_destroy(camera_cb_info_s *cb_info)
                tbm_bufmgr_deinit(cb_info->bufmgr);
                cb_info->bufmgr = NULL;
        }
-       if (cb_info->api_activating) {
-               g_free(cb_info->api_activating);
-               cb_info->api_activating = NULL;
-       }
-       if (cb_info->api_ret) {
-               g_free(cb_info->api_ret);
-               cb_info->api_ret = NULL;
-       }
        if (cb_info->pkt_fmt) {
                media_format_unref(cb_info->pkt_fmt);
                cb_info->pkt_fmt = NULL;
        }
 
-#ifdef TIZEN_FEATURE_EVAS_RENDERER
-       if (cb_info->evas_info)
-               mm_evas_renderer_destroy(&cb_info->evas_info);
-#endif /* TIZEN_FEATURE_EVAS_RENDERER */
+       if (cb_info->dp_interface) {
+               mm_display_interface_deinit(cb_info->dp_interface);
+               cb_info->dp_interface = NULL;
+       }
 
        cb_info->preview_cb_flag = 0;
 
@@ -2022,19 +2351,13 @@ static void _client_callback_destroy(camera_cb_info_s *cb_info)
        return;
 }
 
-
+//LCOV_EXCL_START
 int _camera_start_evas_rendering(camera_h camera)
 {
-       int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
 
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
@@ -2045,62 +2368,115 @@ int _camera_start_evas_rendering(camera_h camera)
                return CAMERA_ERROR_NONE;
        }
 
-#ifdef TIZEN_FEATURE_EVAS_RENDERER
-       g_mutex_lock(&pc->cb_info->evas_mutex);
-
        /* set evas render flag as RUN */
        pc->cb_info->run_evas_render = true;
-       ret = CAMERA_ERROR_NONE;
 
-       g_mutex_unlock(&pc->cb_info->evas_mutex);
-#else /* TIZEN_FEATURE_EVAS_RENDERER */
-       LOGW("evas renderer is not supported");
-       ret = CAMERA_ERROR_NOT_SUPPORTED;
-#endif /* TIZEN_FEATURE_EVAS_RENDERER */
+       return CAMERA_ERROR_NONE;
+}
+
+
+int _camera_stop_evas_rendering(camera_h camera, bool keep_screen)
+{
+       int ret = CAMERA_ERROR_NONE;
+       camera_cli_s *pc = (camera_cli_s *)camera;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
+               return CAMERA_ERROR_INVALID_PARAMETER;
+       }
+
+       LOGD("stop - keep screen %d", keep_screen);
+
+       if (!CHECK_PREVIEW_CB(pc->cb_info, PREVIEW_CB_TYPE_EVAS)) {
+               LOGE("EVAS surface is not set");
+               return CAMERA_ERROR_NONE;
+       }
+
+       /* set evas render flag as STOP and release buffers */
+       pc->cb_info->run_evas_render = false;
+
+       ret = mm_display_interface_evas_flush(pc->cb_info->dp_interface, keep_screen);
+       if (ret == MM_ERROR_NONE) {
+               ret = CAMERA_ERROR_NONE;
+       } else {
+               LOGE("mm_evas_renderer_retrieve_all_packets failed 0x%x", ret);
+               ret = CAMERA_ERROR_INVALID_OPERATION;
+       }
 
        return ret;
 }
+//LCOV_EXCL_STOP
 
-
-int _camera_stop_evas_rendering(camera_h camera, bool keep_screen)
+int _camera_independent_request(int api, int device_type, const char *key, int *value)
 {
        int ret = CAMERA_ERROR_NONE;
-       camera_cli_s *pc = (camera_cli_s *)camera;
+       int sock_fd = -1;
+       int module_index = -1;
+       char *msg = NULL;
+       char recv_msg[MUSE_CAMERA_MSG_MAX_LENGTH] = {'\0',};
 
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       /* create muse connection */
+       if (!key || !value) {
+               LOGE("NULL pointer");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
+       sock_fd = muse_client_new();
+       if (sock_fd < 0) {
+               LOGE("muse_client_new failed");
+               return CAMERA_ERROR_INVALID_OPERATION;
        }
 
-       LOGD("stop - keep screen %d", keep_screen);
+       if (muse_client_get_module_index(MODULE_NAME, &module_index) != MM_ERROR_NONE) {
+               LOGE("muse client get module index failed");
+               ret = CAMERA_ERROR_INVALID_OPERATION;
+               goto _REQUEST_EXIT;
+       }
 
-       if (!CHECK_PREVIEW_CB(pc->cb_info, PREVIEW_CB_TYPE_EVAS)) {
-               LOGE("EVAS surface is not set");
-               return CAMERA_ERROR_NONE;
+       msg = muse_core_msg_new(api,
+               MUSE_TYPE_INT, "module", module_index,
+               MUSE_TYPE_INT, PARAM_DEVICE_TYPE, device_type,
+               0);
+       if (!msg) {
+               LOGE("msg failed");
+               ret = CAMERA_ERROR_OUT_OF_MEMORY;
+               goto _REQUEST_EXIT;
        }
 
-#ifdef TIZEN_FEATURE_EVAS_RENDERER
-       g_mutex_lock(&pc->cb_info->evas_mutex);
+       ret = muse_core_msg_send(sock_fd, msg);
 
-       /* set evas render flag as STOP and release buffers */
-       pc->cb_info->run_evas_render = false;
+       muse_core_msg_free(msg);
+       msg = NULL;
 
-       ret = mm_evas_renderer_retrieve_all_packets(pc->cb_info->evas_info, keep_screen);
-       if (ret != MM_ERROR_NONE) {
-               LOGE("mm_evas_renderer_retrieve_all_packets failed 0x%x", ret);
+       if (ret < 0) {
+               LOGE("send msg failed");
+               ret = CAMERA_ERROR_INVALID_OPERATION;
+               goto _REQUEST_EXIT;
+       }
+
+       ret = muse_core_msg_recv(sock_fd, recv_msg, MUSE_CAMERA_MSG_MAX_LENGTH);
+       if (ret <= 0) {
+               LOGE("recv msg failed %d", errno);
+               ret = CAMERA_ERROR_INVALID_OPERATION;
+               goto _REQUEST_EXIT;
+       }
+
+       if (!muse_camera_msg_get(ret, recv_msg)) {
+               LOGE("failed to get return value from msg [%s]", recv_msg);
                ret = CAMERA_ERROR_INVALID_OPERATION;
+               goto _REQUEST_EXIT;
        }
 
-       g_mutex_unlock(&pc->cb_info->evas_mutex);
-#else /* TIZEN_FEATURE_EVAS_RENDERER */
-       LOGW("evas renderer is not supported");
-       ret = CAMERA_ERROR_NOT_SUPPORTED;
-#endif /* TIZEN_FEATURE_EVAS_RENDERER */
+       if (ret == CAMERA_ERROR_NONE)
+               muse_core_msg_deserialize(key, recv_msg, NULL, NULL, MUSE_TYPE_ANY, value);
+
+       LOGD("api %d - value %d", api, *value);
+
+_REQUEST_EXIT:
+       if (sock_fd > -1) {
+               muse_client_close(sock_fd);
+               sock_fd = -1;
+       }
 
        return ret;
 }
@@ -2109,44 +2485,55 @@ int _camera_stop_evas_rendering(camera_h camera, bool keep_screen)
 int camera_create(camera_device_e device, camera_h *camera)
 {
        int sock_fd = -1;
-       char *sndMsg;
+       char *send_msg = NULL;
+       int send_ret = 0;
        int ret = CAMERA_ERROR_NONE;
-       int pid = 0;
        camera_cli_s *pc = NULL;
        tbm_bufmgr bufmgr = NULL;
 
        muse_camera_api_e api = MUSE_CAMERA_API_CREATE;
-       muse_core_api_module_e muse_module = MUSE_CAMERA;
+       int module_index = -1;
        int device_type = (int)device;
 
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!camera) {
+               LOGE("NULL pointer");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       bufmgr = tbm_bufmgr_init(-1);
-       if (bufmgr == NULL) {
-               LOGE("get tbm bufmgr failed");
-               return CAMERA_ERROR_INVALID_OPERATION;
-       }
-
-       sock_fd = muse_core_client_new();
+       sock_fd = muse_client_new();
        if (sock_fd < 0) {
-               LOGE("muse_core_client_new failed - returned fd %d", sock_fd);
+               LOGE("muse_client_new failed - returned fd %d", sock_fd);
                ret = CAMERA_ERROR_INVALID_OPERATION;
                goto ErrorExit;
        }
 
-       pid = getpid();
+       if (muse_client_get_module_index(MODULE_NAME, &module_index) != MM_ERROR_NONE) {
+               LOGE("muse client get module index failed");
+               ret = CAMERA_ERROR_INVALID_OPERATION;
+               goto ErrorExit;
+       }
 
-       sndMsg = muse_core_msg_json_factory_new(api,
-               MUSE_TYPE_INT, "module", muse_module,
+       send_msg = muse_core_msg_new(api,
+               MUSE_TYPE_INT, "module", module_index,
                MUSE_TYPE_INT, PARAM_DEVICE_TYPE, device_type,
-               MUSE_TYPE_INT, "pid", pid,
                0);
 
-       muse_core_ipc_send_msg(sock_fd, sndMsg);
-       muse_core_msg_json_factory_free(sndMsg);
+       if (!send_msg) {
+               LOGE("NULL msg");
+               ret = CAMERA_ERROR_OUT_OF_MEMORY;
+               goto ErrorExit;
+       }
+
+       send_ret = muse_core_msg_send(sock_fd, send_msg);
+
+       muse_core_msg_free(send_msg);
+       send_msg = NULL;
+
+       if (send_ret < 0) {
+               LOGE("send msg failed %d", errno);
+               ret = CAMERA_ERROR_INVALID_OPERATION;
+               goto ErrorExit;
+       }
 
        pc = g_new0(camera_cli_s, 1);
        if (pc == NULL) {
@@ -2155,18 +2542,33 @@ int camera_create(camera_device_e device, camera_h *camera)
                goto ErrorExit;
        }
 
-       pc->cb_info = _client_callback_new(sock_fd);
+       bufmgr = tbm_bufmgr_init(-1);
+       if (bufmgr == NULL) {
+               LOGE("get tbm bufmgr failed");
+               ret = CAMERA_ERROR_INVALID_OPERATION;
+               goto ErrorExit;
+       }
+
+       pc->cb_info = _camera_client_callback_new(sock_fd);
        if (pc->cb_info == NULL) {
                LOGE("cb_info alloc failed");
                ret = CAMERA_ERROR_OUT_OF_MEMORY;
                goto ErrorExit;
        }
 
+       sock_fd = -1;
+
        LOGD("cb info : %d", pc->cb_info->fd);
 
-       ret = _client_wait_for_cb_return(api, pc->cb_info, CALLBACK_TIME_OUT);
+       ret = _camera_client_wait_for_cb_return(api, pc->cb_info, CAMERA_CB_TIMEOUT);
+
+       pc->cb_info->api_waiting[MUSE_CAMERA_API_CREATE] = 0;
+
        if (ret == CAMERA_ERROR_NONE) {
+               int preview_format = CAMERA_PIXEL_FORMAT_INVALID;
+               int user_buffer_supported = 0;
                intptr_t handle = 0;
+
                muse_camera_msg_get_pointer(handle, pc->cb_info->recv_msg);
                if (handle == 0) {
                        LOGE("Receiving Handle Failed!!");
@@ -2174,30 +2576,55 @@ int camera_create(camera_device_e device, camera_h *camera)
                        goto ErrorExit;
                }
 
+               muse_camera_msg_get(preview_format, pc->cb_info->recv_msg);
+               muse_camera_msg_get(user_buffer_supported, pc->cb_info->recv_msg);
+
                pc->remote_handle = handle;
                pc->cb_info->bufmgr = bufmgr;
+               pc->cb_info->preview_format = preview_format;
+               pc->cb_info->dp_info.type = CAMERA_DISPLAY_TYPE_NONE;
+               pc->cb_info->user_buffer_supported = (gboolean)user_buffer_supported;
 
-               ret = camera_set_display((camera_h)pc, CAMERA_DISPLAY_TYPE_NONE, NULL);
-               if (ret != CAMERA_ERROR_NONE) {
-                       LOGE("init display failed 0x%x", ret);
-                       goto ErrorExit;
-               }
+               LOGD("default preview format %d, user buffer %d",
+                       preview_format, user_buffer_supported);
 
-               LOGD("camera create 0x%x", pc->remote_handle);
                *camera = (camera_h)pc;
+
+               /* get display interface handle */
+               if (mm_display_interface_init(&pc->cb_info->dp_interface) != MM_ERROR_NONE)
+                       LOGW("display interface init failed");
        } else {
                goto ErrorExit;
        }
 
        return ret;
-
+//LCOV_EXCL_START
 ErrorExit:
-       tbm_bufmgr_deinit(bufmgr);
-       bufmgr = NULL;
+       if (bufmgr) {
+               tbm_bufmgr_deinit(bufmgr);
+               bufmgr = NULL;
+       }
+
+       if (sock_fd > -1) {
+               muse_client_close(sock_fd);
+               sock_fd = -1;
+       }
 
        if (pc) {
-               _client_callback_destroy(pc->cb_info);
-               pc->cb_info = NULL;
+               if (pc->cb_info) {
+                       int temp_fd = pc->cb_info->fd;
+
+                       /* pc->cb_info->fd should be closed,
+                          because g_thread_join for msg_recv_thread is not returned
+                          in _camera_client_callback_destroy. */
+                       if (temp_fd > -1) {
+                               pc->cb_info->fd = -1;
+                               muse_client_close(temp_fd);
+                       }
+
+                       _camera_client_callback_destroy(pc->cb_info);
+                       pc->cb_info = NULL;
+               }
                g_free(pc);
                pc = NULL;
        }
@@ -2205,21 +2632,35 @@ ErrorExit:
        LOGE("camera create error : 0x%x", ret);
 
        return ret;
+//LCOV_EXCL_STOP
 }
 
 
 int camera_change_device(camera_h camera, camera_device_e device)
 {
+       int i = 0;
        int ret = CAMERA_ERROR_NONE;
        muse_camera_api_e api = MUSE_CAMERA_API_CHANGE_DEVICE;
        camera_cli_s *pc = (camera_cli_s *)camera;
+       camera_msg_param param;
 
-       if (camera == NULL || pc->cb_info == NULL) {
-               LOGE("NULL handle, INVALID_PARAMETER");
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       muse_camera_msg_send1(api, pc->cb_info->fd, pc->cb_info, ret, INT, device);
+       CAMERA_MSG_PARAM_SET(param, INT, device);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               /* reset callback and user data */
+               for (i = 0 ; i < MUSE_CAMERA_EVENT_TYPE_NUM ; i++) {
+                       pc->cb_info->user_cb[i] = NULL;
+                       pc->cb_info->user_data[i] = NULL;
+               }
+               UNSET_PREVIEW_CB_TYPE(pc->cb_info, PREVIEW_CB_TYPE_USER);
+       }
 
        return ret;
 }
@@ -2227,37 +2668,33 @@ int camera_change_device(camera_h camera, camera_device_e device)
 
 int camera_destroy(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        muse_camera_api_e api = MUSE_CAMERA_API_DESTROY;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       int sock_fd = 0;
 
-       LOGD("ENTER");
-
-       if (pc->cb_info == NULL) {
-               LOGE("cb_info NULL, INVALID_PARAMETER");
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       sock_fd = pc->cb_info->fd;
+       LOGD("Enter");
+
+       if (pc->cb_info->is_server_connected)
+               _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+       else
+               LOGW("server disconnected. release resource without send message.");
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
        if (ret == CAMERA_ERROR_NONE) {
-               _camera_remove_idle_event_all(pc->cb_info);
-               _client_callback_destroy(pc->cb_info);
+               _camera_deactivate_idle_event_all(pc->cb_info);
+               _camera_client_callback_destroy(pc->cb_info);
                pc->cb_info = NULL;
 
                g_free(pc);
                pc = NULL;
-       } else {
-               LOGE("camera destroy error : 0x%x", ret);
        }
 
+       LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
@@ -2266,28 +2703,44 @@ int camera_start_preview(camera_h camera)
        int ret = CAMERA_ERROR_NONE;
        muse_camera_api_e api = MUSE_CAMERA_API_START_PREVIEW;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       int sock_fd = 0;
+       camera_state_e current_state = CAMERA_STATE_NONE;
 
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
+       LOGD("Enter : preview format %d, display type %d",
+               pc->cb_info->preview_format, pc->cb_info->dp_info.type);
+
+       ret = camera_get_state(camera, &current_state);
+       if (ret != CAMERA_ERROR_NONE) {
+               LOGE("failed to get current state 0x%x", ret);
+               return ret;
        }
 
-       LOGD("start");
+       if (pc->cb_info->preview_format == CAMERA_PIXEL_FORMAT_INVZ &&
+               pc->cb_info->dp_info.type != CAMERA_DISPLAY_TYPE_NONE) {
+               LOGE("CAMERA_DISPLAY_TYPE_NONE[current %d] should be set with INVZ format",
+                       pc->cb_info->dp_info.type);
+               return CAMERA_ERROR_INVALID_OPERATION;
+       }
 
-       sock_fd = pc->cb_info->fd;
+       if (current_state == CAMERA_STATE_CREATED && pc->cb_info->user_buffer_supported) {
+               if (!_camera_allocate_preview_buffer(camera))
+                       return CAMERA_ERROR_INVALID_OPERATION;
 
-       muse_camera_msg_send_longtime(api, sock_fd, pc->cb_info, ret);
+               _camera_msg_send(api, pc->cb_info->fds, pc->cb_info, &ret, CAMERA_CB_NO_TIMEOUT);
+       } else {
+               _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_NO_TIMEOUT);
+       }
 
-       if (ret != CAMERA_ERROR_NONE) {
-               LOGE("start preview failed 0x%x", ret);
-       } else if (CHECK_PREVIEW_CB(pc->cb_info, PREVIEW_CB_TYPE_EVAS)) {
+       if (ret == CAMERA_ERROR_NONE && CHECK_PREVIEW_CB(pc->cb_info, PREVIEW_CB_TYPE_EVAS)) {
                ret = _camera_start_evas_rendering(camera);
+               if (ret != CAMERA_ERROR_NONE) {
+                       LOGE("stop preview because of error");
+                       _camera_msg_send(MUSE_CAMERA_API_STOP_PREVIEW, NULL, pc->cb_info, NULL, 0);
+               }
        }
 
        LOGD("ret : 0x%x", ret);
@@ -2295,32 +2748,23 @@ int camera_start_preview(camera_h camera)
        return ret;
 }
 
+
 int camera_stop_preview(camera_h camera)
 {
        int ret = CAMERA_ERROR_NONE;
-       int sock_fd = 0;
-       camera_cli_s *pc = NULL;
+       camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_STOP_PREVIEW;
+       camera_state_e current_state = CAMERA_STATE_NONE;
 
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
-       pc = (camera_cli_s *)camera;
-
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       sock_fd = pc->cb_info->fd;
-
        LOGD("Enter");
 
+//LCOV_EXCL_START
        if (CHECK_PREVIEW_CB(pc->cb_info, PREVIEW_CB_TYPE_EVAS)) {
-               camera_state_e current_state = CAMERA_STATE_NONE;
-
                ret = camera_get_state(camera, &current_state);
                if (ret != CAMERA_ERROR_NONE) {
                        LOGE("failed to get current state 0x%x", ret);
@@ -2333,378 +2777,368 @@ int camera_stop_preview(camera_h camera)
                                return ret;
                }
        }
-
+//LCOV_EXCL_STOP
        /* send stop preview message */
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               if (pc->cb_info->user_buffer_supported)
+                       _camera_release_preview_buffer(camera);
+       } else if (current_state == CAMERA_STATE_PREVIEW) {
+               LOGW("restart evas rendering");
+               _camera_start_evas_rendering(camera);
+       }
 
        LOGD("ret : 0x%x", ret);
 
        return ret;
 }
 
+
 int camera_start_capture(camera_h camera, camera_capturing_cb capturing_cb, camera_capture_completed_cb completed_cb, void *user_data)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_START_CAPTURE;
-       int sock_fd;
-       int is_capturing_cb = 0;
-       int is_completed_cb = 0;
-       LOGD("Enter, handle :%x", pc->remote_handle);
 
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       sock_fd = pc->cb_info->fd;
+       LOGD("Enter");
 
-       if (capturing_cb != NULL) {
-               is_capturing_cb = 1;
-               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_CAPTURE] = capturing_cb;
-               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_CAPTURE] = user_data;
-       }
+       pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_CAPTURE] = capturing_cb;
+       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_CAPTURE] = user_data;
 
-       if (completed_cb != NULL) {
-               is_completed_cb = 1;
-               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_CAPTURE_COMPLETE] = completed_cb;
-               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_CAPTURE_COMPLETE] = user_data;
-       }
+       pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_CAPTURE_COMPLETE] = completed_cb;
+       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_CAPTURE_COMPLETE] = user_data;
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
-       muse_camera_msg_send2(api, sock_fd, pc->cb_info, ret, INT, is_capturing_cb, INT, is_completed_cb);
-       LOGD("is_capturing_cb :%d, is_completed_cb : %d", is_capturing_cb, is_completed_cb);
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 bool camera_is_supported_continuous_capture(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return false;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_SUPPORT_CONTINUOUS_CAPTURE;
-       int sock_fd;
 
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       sock_fd = pc->cb_info->fd;
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret < 0) {
+               LOGE("error is occurred 0x%x", ret);
+               ret = false;
+       }
+
+       LOGD("ret : %d", ret);
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
-       LOGD("ret : 0x%x", ret);
        return (bool)ret;
 }
 
-int camera_start_continuous_capture(camera_h camera, int count, int interval, camera_capturing_cb capturing_cb, camera_capture_completed_cb completed_cb , void *user_data)
-{
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
 
+int camera_start_continuous_capture(camera_h camera, int count, int interval, camera_capturing_cb capturing_cb, camera_capture_completed_cb completed_cb, void *user_data)
+{
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_START_CONTINUOUS_CAPTURE;
+       camera_msg_param param;
+       int value = 0;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
+
+       LOGD("Enter");
 
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_CAPTURE] = capturing_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_CAPTURE] = user_data;
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_CAPTURE_COMPLETE] = completed_cb;
+       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_CAPTURE_COMPLETE] = user_data;
 
-       muse_camera_msg_send2(api, sock_fd, pc->cb_info, ret, INT, count, INT, interval);
+       value = (count << 16) | interval;
+       CAMERA_MSG_PARAM_SET(param, INT, value);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
 
        LOGD("ret : 0x%x", ret);
 
        return ret;
 }
 
+
 int camera_stop_continuous_capture(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
-
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_STOP_CONTINUOUS_CAPTURE;
-       LOGD("Enter,  handle :%x", pc->remote_handle);
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 bool camera_is_supported_face_detection(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return false;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_SUPPORT_FACE_DETECTION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
-       LOGD("ret : 0x%x", ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret < 0) {
+               LOGE("error is occurred 0x%x", ret);
+               ret = false;
+       }
+
+       LOGD("ret : %d", ret);
+
        return (bool)ret;
 }
 
+
 bool camera_is_supported_zero_shutter_lag(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return false;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_SUPPORT_ZERO_SHUTTER_LAG;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
-       LOGD("ret : 0x%x", ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret < 0) {
+               LOGE("error is occurred 0x%x", ret);
+               ret = false;
+       }
+
+       LOGD("ret : %d", ret);
+
        return (bool)ret;
 }
 
+
 bool camera_is_supported_media_packet_preview_cb(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return false;
-       }
-
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_SUPPORT_MEDIA_PACKET_PREVIEW_CB;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
-       LOGD("ret : 0x%x", ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret < 0) {
+               LOGE("error is occurred 0x%x", ret);
+               ret = false;
+       }
+
+       LOGD("ret : %d", ret);
+
        return (bool)ret;
 }
 
 int camera_get_device_count(camera_h camera, int *device_count)
 {
-       if (camera == NULL || device_count == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_GET_DEVICE_COUNT;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_device_count;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *device_count = pc->cb_info->get_int[MUSE_CAMERA_GET_INT_DEVICE_COUNT];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_device_count, pc->cb_info->recv_msg);
-               *device_count = get_device_count;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 int camera_start_face_detection(camera_h camera, camera_face_detected_cb callback, void *user_data)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_START_FACE_DETECTION;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION] = callback;
-       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION]);
+
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION] = callback;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION] = user_data;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION]);
+       }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 int camera_stop_face_detection(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_STOP_FACE_DETECTION;
-       LOGD("Enter,  handle :%x", pc->remote_handle);
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION]);
+
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION] = NULL;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION] = NULL;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_FACE_DETECTION]);
+       }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 int camera_get_state(camera_h camera, camera_state_e *state)
 {
-       if (camera == NULL || state == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_GET_STATE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !state) {
+               LOGE("NULL pointer %p %p", pc, state);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_state;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *state = (camera_state_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_STATE];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_state, pc->cb_info->recv_msg);
-               *state = (camera_state_e)get_state;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 int camera_start_focusing(camera_h camera, bool continuous)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_START_FOCUSING;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int is_continuous = (int)continuous;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int is_continuous = (int)continuous;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, is_continuous);
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, is_continuous);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 int camera_cancel_focusing(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_CANCEL_FOCUSING;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter, remote_handle : %td", pc->remote_handle);
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 int camera_set_display(camera_h camera, camera_display_type_e type, camera_display_h display)
 {
+       int mm_ret = MM_ERROR_NONE;
        int ret = CAMERA_ERROR_NONE;
-       void *set_display_handle = NULL;
-       Evas_Object *obj = NULL;
-       const char *object_type = NULL;
-       camera_wl_info_s *wl_info = NULL;
        camera_cli_s *pc = (camera_cli_s *)camera;
        camera_cb_info_s *cb_info = NULL;
-       muse_camera_api_e api = MUSE_CAMERA_API_SET_DISPLAY;
        camera_state_e current_state = CAMERA_STATE_NONE;
-       int sock_fd = 0;
+       camera_msg_param param;
+       muse_camera_api_e api = MUSE_CAMERA_API_SET_DISPLAY;
+       muse_camera_display_info_s *dp_info = NULL;
 
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
@@ -2718,13 +3152,8 @@ int camera_set_display(camera_h camera, camera_display_type_e type, camera_displ
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        cb_info = (camera_cb_info_s *)pc->cb_info;
-       sock_fd = cb_info->fd;
+       dp_info = &cb_info->dp_info;
 
        ret = camera_get_state(camera, &current_state);
        if (ret != CAMERA_ERROR_NONE) {
@@ -2737,528 +3166,412 @@ int camera_set_display(camera_h camera, camera_display_type_e type, camera_displ
                return CAMERA_ERROR_INVALID_STATE;
        }
 
-       LOGD("Enter, remote_handle : %x display : 0x%x", pc->remote_handle, display);
+       LOGD("Enter - type : %d, display : %p", type, display);
 
-       if (type == CAMERA_DISPLAY_TYPE_NONE) {
-               set_display_handle = 0;
-               LOGD("display type NONE");
-       } else {
-               obj = (Evas_Object *)display;
-               object_type = evas_object_type_get(obj);
-               if (object_type) {
-                       if (type == CAMERA_DISPLAY_TYPE_OVERLAY && !strcmp(object_type, "elm_win")) {
-                               /* get wayland parent id */
-                               if (_get_wl_info(obj, &pc->wl_info) != CAMERA_ERROR_NONE) {
-                                       LOGE("failed to get wayland info");
-                                       return CAMERA_ERROR_INVALID_OPERATION;
-                               }
-
-                               set_display_handle = (void *)&pc->wl_info;
-                               LOGD("display type OVERLAY : handle %p", set_display_handle);
-                       } else if (type == CAMERA_DISPLAY_TYPE_EVAS && !strcmp(object_type, "image")) {
-                               /* evas object surface */
-                               set_display_handle = (void *)display;
-                               LOGD("display type EVAS : handle %p", set_display_handle);
-
-#ifdef TIZEN_FEATURE_EVAS_RENDERER
-                               g_mutex_lock(&cb_info->evas_mutex);
-
-                               if (cb_info->evas_info) {
-                                       LOGW("destroy existed evas renderer %p", cb_info->evas_info);
-                                       ret = mm_evas_renderer_destroy(&cb_info->evas_info);
-                                       if (ret != MM_ERROR_NONE) {
-                                               LOGE("failed to destroy evas renderer %p", cb_info->evas_info);
-                                               g_mutex_unlock(&cb_info->evas_mutex);
-                                               return CAMERA_ERROR_INVALID_OPERATION;
-                                       }
-                               }
-
-                               /* create evas renderer */
-                               ret = mm_evas_renderer_create(&cb_info->evas_info, (Evas_Object *)set_display_handle);
-                               if (ret == MM_ERROR_NONE) {
-                                       camera_flip_e flip = CAMERA_FLIP_NONE;
-                                       camera_display_mode_e mode = CAMERA_DISPLAY_MODE_LETTER_BOX;
-                                       camera_rotation_e rotation = CAMERA_ROTATION_NONE;
-                                       bool visible = 0;
-                                       int x = 0;
-                                       int y = 0;
-                                       int width = 0;
-                                       int height = 0;
-
-                                       camera_get_display_flip(camera, &flip);
-                                       camera_get_display_mode(camera, &mode);
-                                       camera_get_display_rotation(camera, &rotation);
-                                       camera_is_display_visible(camera, &visible);
-                                       camera_attr_get_display_roi_area(camera, &x, &y, &width, &height);
-
-                                       LOGD("current setting : flip %d, mode %d, rotation %d, visible %d, roi %d,%d,%dx%d",
-                                               flip, mode, rotation, visible, x, y, width, height);
-
-                                       ret = mm_evas_renderer_set_flip(cb_info->evas_info, flip);
-                                       ret |= mm_evas_renderer_set_geometry(cb_info->evas_info, mode);
-                                       ret |= mm_evas_renderer_set_rotation(cb_info->evas_info, rotation);
-                                       ret |= mm_evas_renderer_set_visible(cb_info->evas_info, visible);
-
-                                       if (mode == CAMERA_DISPLAY_MODE_CUSTOM_ROI)
-                                               ret |= mm_evas_renderer_set_roi_area(cb_info->evas_info, x, y, width, height);
-                               }
+       if (type != CAMERA_DISPLAY_TYPE_NONE) {
+               /* check display interface handle */
+               if (!cb_info->dp_interface) {
+                       LOGE("display interface not supported");
+                       return CAMERA_ERROR_NOT_SUPPORTED;
+               }
 
-                               g_mutex_unlock(&cb_info->evas_mutex);
+               mm_ret = mm_display_interface_set_display(cb_info->dp_interface, type, display, &dp_info->parent_id);
+               if (mm_ret != MM_ERROR_NONE) {
+                       LOGE("[INVALID_OPERATION] set display failed[0x%x]", mm_ret);
+                       return CAMERA_ERROR_INVALID_OPERATION;
+               }
 
-                               if (ret != MM_ERROR_NONE) {
-                                       LOGE("mm_evas_renderer error 0x%x", ret);
-                                       return CAMERA_ERROR_INVALID_OPERATION;
-                               }
-#else /* TIZEN_FEATURE_EVAS_RENDERER */
-                               LOGE("EVAS surface is not supported");
-                               return CAMERA_ERROR_NOT_SUPPORTED;
-#endif /* TIZEN_FEATURE_EVAS_RENDERER */
-                       } else {
-                               LOGE("unknown evas object [%p,%s] or type [%d] mismatch", obj, object_type, type);
-                               return CAMERA_ERROR_INVALID_PARAMETER;
-                       }
-               } else {
-                       LOGE("failed to get evas object type from %p", obj);
-                       return CAMERA_ERROR_INVALID_PARAMETER;
+               if (type == CAMERA_DISPLAY_TYPE_OVERLAY) {
+                       mm_ret = mm_display_interface_get_window_rect(cb_info->dp_interface, &dp_info->window_rect);
+
+                       LOGD("ret 0x%x, parent_id %d, window rect %d,%d,%dx%d",
+                               ret, dp_info->parent_id, dp_info->window_rect.x, dp_info->window_rect.y,
+                               dp_info->window_rect.width, dp_info->window_rect.height);
+               } else if (type == CAMERA_DISPLAY_TYPE_EVAS) {
+//LCOV_EXCL_START
+                       camera_flip_e flip = CAMERA_FLIP_NONE;
+                       camera_display_mode_e mode = CAMERA_DISPLAY_MODE_LETTER_BOX;
+                       camera_rotation_e rotation = CAMERA_ROTATION_NONE;
+                       bool visible = 0;
+                       int x = 0;
+                       int y = 0;
+                       int width = 0;
+                       int height = 0;
+
+                       camera_get_display_flip(camera, &flip);
+                       camera_get_display_mode(camera, &mode);
+                       camera_get_display_rotation(camera, &rotation);
+                       camera_is_display_visible(camera, &visible);
+                       camera_attr_get_display_roi_area(camera, &x, &y, &width, &height);
+
+                       LOGD("current setting : flip %d, mode %d, rotation %d, visible %d, roi %d,%d,%dx%d",
+                               flip, mode, rotation, visible, x, y, width, height);
+
+                       mm_ret = mm_display_interface_evas_set_flip(cb_info->dp_interface, flip);
+                       mm_ret |= mm_display_interface_evas_set_mode(cb_info->dp_interface, mode);
+                       mm_ret |= mm_display_interface_evas_set_rotation(cb_info->dp_interface, rotation);
+                       mm_ret |= mm_display_interface_evas_set_visible(cb_info->dp_interface, visible);
+
+                       if (mode == CAMERA_DISPLAY_MODE_CUSTOM_ROI)
+                               mm_ret |= mm_display_interface_evas_set_roi_area(cb_info->dp_interface, x, y, width, height);
+//LCOV_EXCL_STOP
                }
        }
 
-       pc->display_handle = (intptr_t)set_display_handle;
+       if (mm_ret != MM_ERROR_NONE) {
+               LOGE("mm_ret 0x%x failed", mm_ret);
+               return CAMERA_ERROR_INVALID_OPERATION;
+       }
+
+       dp_info->type = type;
 
-       if (type == CAMERA_DISPLAY_TYPE_OVERLAY) {
-               wl_info = &pc->wl_info;
-               muse_camera_msg_send_array_and_value(api, sock_fd, cb_info, ret,
-                       wl_info, sizeof(camera_wl_info_s), sizeof(int), INT, type);
+       CAMERA_MSG_PARAM_SET_ARRAY(param, ARRAY, dp_info, sizeof(muse_camera_display_info_s));
 
-               LOGD("wayland parent id : %d, window %d,%d,%dx%d",
-                       wl_info->parent_id, wl_info->window_x, wl_info->window_y,
-                       wl_info->window_width, wl_info->window_height);
-       } else
-               muse_camera_msg_send1(api, sock_fd, cb_info, ret, INT, type);
+       _camera_msg_send_param1(api, cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
 
-       if (ret != CAMERA_ERROR_NONE)
-               LOGE("set display error 0x%x", ret);
-       else if (type == CAMERA_DISPLAY_TYPE_EVAS)
-               SET_PREVIEW_CB_TYPE(cb_info, PREVIEW_CB_TYPE_EVAS);
+       if (ret == CAMERA_ERROR_NONE) {
+               if (type == CAMERA_DISPLAY_TYPE_EVAS)
+                       SET_PREVIEW_CB_TYPE(cb_info, PREVIEW_CB_TYPE_EVAS);
+       }
 
        return ret;
 }
 
-int camera_set_preview_resolution(camera_h camera,  int width, int height)
+
+int camera_set_preview_resolution(camera_h camera, int width, int height)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
+       camera_state_e current_state = CAMERA_STATE_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_SET_PREVIEW_RESOLUTION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int value = 0;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send2(api, sock_fd, pc->cb_info, ret, INT, width, INT, height);
+       if (CHECK_PREVIEW_CB(pc->cb_info, PREVIEW_CB_TYPE_EVAS)) {
+               ret = camera_get_state(camera, &current_state);
+               if (ret != CAMERA_ERROR_NONE) {
+                       LOGE("failed to get current state 0x%x", ret);
+                       return ret;
+               }
+
+               if (current_state == CAMERA_STATE_PREVIEW) {
+                       ret = _camera_stop_evas_rendering(camera, true);
+                       if (ret != CAMERA_ERROR_NONE)
+                               return ret;
+               }
+       }
+
+       value = (width << 16) | height;
+       CAMERA_MSG_PARAM_SET(param, INT, value);
+
+       LOGD("%dx%d -> 0x%x", width, height, value);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
+       if (current_state == CAMERA_STATE_PREVIEW) {
+               LOGW("restart evas rendering");
+               _camera_start_evas_rendering(camera);
+       }
+
        return ret;
 }
 
 
-int camera_set_capture_resolution(camera_h camera,  int width, int height)
+int camera_set_capture_resolution(camera_h camera, int width, int height)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_SET_CAPTURE_RESOLUTION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int value = 0;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send2(api, sock_fd, pc->cb_info, ret, INT, width, INT, height);
+       LOGD("Enter");
+
+       value = (width << 16) | height;
+       CAMERA_MSG_PARAM_SET(param, INT, value);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_set_capture_format(camera_h camera, camera_pixel_format_e format)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        int set_format = (int)format;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_SET_CAPTURE_FORMAT;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x, capture_format: %d", pc->remote_handle, set_format);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_format);
+       LOGD("Enter - format %d", set_format);
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_format);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_set_preview_format(camera_h camera, camera_pixel_format_e format)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        int set_format = (int)format;
-
+       camera_msg_param param;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_SET_PREVIEW_FORMAT;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x, capture_format: %d", pc->remote_handle, set_format);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_format);
+       LOGD("Enter - format %d", set_format);
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_format);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               pc->cb_info->preview_format = set_format;
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
-int camera_get_preview_resolution(camera_h camera,  int *width, int *height)
-{
-       if (camera == NULL || width == NULL || height == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
 
+int camera_get_preview_resolution(camera_h camera, int *width, int *height)
+{
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_GET_PREVIEW_RESOLUTION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !width || !height) {
+               LOGE("NULL pointer %p %p %p", pc, width, height);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_width;
-       int get_height;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
        if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_width, pc->cb_info->recv_msg);
-               muse_camera_msg_get(get_height, pc->cb_info->recv_msg);
-               *width = get_width;
-               *height = get_height;
+               *width = pc->cb_info->get_int[MUSE_CAMERA_GET_INT_PREVIEW_RESOLUTION] >> 16;
+               *height = 0x0000ffff & pc->cb_info->get_int[MUSE_CAMERA_GET_INT_PREVIEW_RESOLUTION];
        }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_set_display_rotation(camera_h camera, camera_rotation_e rotation)
 {
        int ret = CAMERA_ERROR_NONE;
        int set_rotation = (int)rotation;
-       camera_cli_s *pc = NULL;
-
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
-       if (rotation < CAMERA_ROTATION_NONE || rotation > CAMERA_ROTATION_270) {
-               LOGE("Invalid rotation %d", rotation);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
-       pc = (camera_cli_s *)camera;
+       camera_cli_s *pc = (camera_cli_s *)camera;
+       camera_msg_param param;
 
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-#ifdef TIZEN_FEATURE_EVAS_RENDERER
        if (CHECK_PREVIEW_CB(pc->cb_info, PREVIEW_CB_TYPE_EVAS)) {
-               g_mutex_lock(&pc->cb_info->evas_mutex);
-
-               ret = mm_evas_renderer_set_rotation(pc->cb_info->evas_info, rotation);
-
-               g_mutex_unlock(&pc->cb_info->evas_mutex);
-
+               ret = mm_display_interface_evas_set_rotation(pc->cb_info->dp_interface, rotation);
                if (ret != MM_ERROR_NONE) {
                        LOGE("failed to set rotation for evas surface 0x%x", ret);
                        return CAMERA_ERROR_INVALID_OPERATION;
                }
        }
-#endif /* TIZEN_FEATURE_EVAS_RENDERER */
 
-       muse_camera_msg_send1(MUSE_CAMERA_API_SET_DISPLAY_ROTATION,
-               pc->cb_info->fd, pc->cb_info, ret, INT, set_rotation);
+       CAMERA_MSG_PARAM_SET(param, INT, set_rotation);
+
+       _camera_msg_send_param1(MUSE_CAMERA_API_SET_DISPLAY_ROTATION, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
 
        return ret;
 }
 
+
 int camera_get_display_rotation(camera_h camera, camera_rotation_e *rotation)
 {
        int ret = CAMERA_ERROR_NONE;
-       int get_rotation = CAMERA_ROTATION_NONE;
-       camera_cli_s *pc = NULL;
-
-       if (camera == NULL || rotation == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
-       pc = (camera_cli_s *)camera;
+       camera_cli_s *pc = (camera_cli_s *)camera;
 
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !rotation) {
+               LOGE("NULL pointer %p %p", pc, rotation);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       muse_camera_msg_send(MUSE_CAMERA_API_GET_DISPLAY_ROTATION,
-               pc->cb_info->fd, pc->cb_info, ret);
+       _camera_msg_send(MUSE_CAMERA_API_GET_DISPLAY_ROTATION, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_rotation, pc->cb_info->recv_msg);
-               *rotation = (camera_rotation_e)get_rotation;
-       }
+       if (ret == CAMERA_ERROR_NONE)
+               *rotation = (camera_rotation_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_DISPLAY_ROTATION];
 
        return ret;
 }
 
+
 int camera_set_display_flip(camera_h camera, camera_flip_e flip)
 {
        int ret = CAMERA_ERROR_NONE;
        int set_flip = (int)flip;
-       camera_cli_s *pc = NULL;
-
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
-       if (flip < CAMERA_FLIP_NONE || flip > CAMERA_FLIP_BOTH) {
-               LOGE("Invalid flip %d", flip);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
-       pc = (camera_cli_s *)camera;
+       camera_cli_s *pc = (camera_cli_s *)camera;
+       camera_msg_param param;
 
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-#ifdef TIZEN_FEATURE_EVAS_RENDERER
        if (CHECK_PREVIEW_CB(pc->cb_info, PREVIEW_CB_TYPE_EVAS)) {
-               g_mutex_lock(&pc->cb_info->evas_mutex);
-
-               ret = mm_evas_renderer_set_flip(pc->cb_info->evas_info, flip);
-
-               g_mutex_unlock(&pc->cb_info->evas_mutex);
-
+               ret = mm_display_interface_evas_set_flip(pc->cb_info->dp_interface, flip);
                if (ret != MM_ERROR_NONE) {
                        LOGE("failed to set flip for evas surface 0x%x", ret);
                        return CAMERA_ERROR_INVALID_OPERATION;
                }
        }
-#endif /* TIZEN_FEATURE_EVAS_RENDERER */
 
-       muse_camera_msg_send1(MUSE_CAMERA_API_SET_DISPLAY_FLIP,
-               pc->cb_info->fd, pc->cb_info, ret, INT, set_flip);
+       CAMERA_MSG_PARAM_SET(param, INT, set_flip);
+
+       _camera_msg_send_param1(MUSE_CAMERA_API_SET_DISPLAY_FLIP, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
 
        return ret;
 }
 
+
 int camera_get_display_flip(camera_h camera, camera_flip_e *flip)
 {
        int ret = CAMERA_ERROR_NONE;
-       int get_flip = CAMERA_FLIP_NONE;
-       camera_cli_s *pc = NULL;
-
-       if (camera == NULL || flip == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
-       pc = (camera_cli_s *)camera;
+       camera_cli_s *pc = (camera_cli_s *)camera;
 
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !flip) {
+               LOGE("NULL pointer %p %p", pc, flip);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       muse_camera_msg_send(MUSE_CAMERA_API_GET_DISPLAY_FLIP,
-               pc->cb_info->fd, pc->cb_info, ret);
+       _camera_msg_send(MUSE_CAMERA_API_GET_DISPLAY_FLIP, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_flip, pc->cb_info->recv_msg);
-               *flip = (camera_flip_e)get_flip;
-       }
+       if (ret == CAMERA_ERROR_NONE)
+               *flip = (camera_flip_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_DISPLAY_FLIP];
 
        return ret;
 }
 
+
 int camera_set_display_visible(camera_h camera, bool visible)
 {
        int ret = CAMERA_ERROR_NONE;
        int set_visible = (int)visible;
-       camera_cli_s *pc = NULL;
-
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
-       pc = (camera_cli_s *)camera;
+       camera_cli_s *pc = (camera_cli_s *)camera;
+       camera_msg_param param;
 
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-#ifdef TIZEN_FEATURE_EVAS_RENDERER
        if (CHECK_PREVIEW_CB(pc->cb_info, PREVIEW_CB_TYPE_EVAS)) {
-               g_mutex_lock(&pc->cb_info->evas_mutex);
-
-               ret = mm_evas_renderer_set_visible(pc->cb_info->evas_info, visible);
-
-               g_mutex_unlock(&pc->cb_info->evas_mutex);
-
+               ret = mm_display_interface_evas_set_visible(pc->cb_info->dp_interface, visible);
                if (ret != MM_ERROR_NONE) {
                        LOGE("failed to set visible for evas surface 0x%x", ret);
                        return CAMERA_ERROR_INVALID_OPERATION;
                }
        }
-#endif /* TIZEN_FEATURE_EVAS_RENDERER */
 
-       muse_camera_msg_send1(MUSE_CAMERA_API_SET_DISPLAY_VISIBLE,
-               pc->cb_info->fd, pc->cb_info, ret, INT, set_visible);
+       CAMERA_MSG_PARAM_SET(param, INT, set_visible);
+
+       _camera_msg_send_param1(MUSE_CAMERA_API_SET_DISPLAY_VISIBLE, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
 
        return ret;
 }
 
+
 int camera_is_display_visible(camera_h camera, bool *visible)
 {
        int ret = CAMERA_ERROR_NONE;
-       int get_visible = true;
-       camera_cli_s *pc = NULL;
-
-       if (camera == NULL || visible == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
-       pc = (camera_cli_s *)camera;
+       camera_cli_s *pc = (camera_cli_s *)camera;
 
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !visible) {
+               LOGE("NULL pointer %p %p", pc, visible);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       muse_camera_msg_send(MUSE_CAMERA_API_IS_DISPLAY_VISIBLE,
-               pc->cb_info->fd, pc->cb_info, ret);
+       _camera_msg_send(MUSE_CAMERA_API_IS_DISPLAY_VISIBLE, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_visible, pc->cb_info->recv_msg);
-               *visible = (bool)get_visible;
-       }
+       if (ret == CAMERA_ERROR_NONE)
+               *visible = (bool)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_DISPLAY_VISIBLE];
 
        return ret;
 }
 
+
 int camera_set_display_mode(camera_h camera, camera_display_mode_e mode)
 {
        int ret = CAMERA_ERROR_NONE;
        int set_mode = (int)mode;
-       camera_cli_s *pc = NULL;
-
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
-       if (mode < CAMERA_DISPLAY_MODE_LETTER_BOX || mode > CAMERA_DISPLAY_MODE_CUSTOM_ROI) {
-               LOGE("Invalid mode %d", mode);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
-       pc = (camera_cli_s *)camera;
+       camera_cli_s *pc = (camera_cli_s *)camera;
+       camera_msg_param param;
 
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-#ifdef TIZEN_FEATURE_EVAS_RENDERER
        if (CHECK_PREVIEW_CB(pc->cb_info, PREVIEW_CB_TYPE_EVAS)) {
-               g_mutex_lock(&pc->cb_info->evas_mutex);
-
-               ret = mm_evas_renderer_set_geometry(pc->cb_info->evas_info, mode);
-
-               g_mutex_unlock(&pc->cb_info->evas_mutex);
-
+               ret = mm_display_interface_evas_set_mode(pc->cb_info->dp_interface, mode);
                if (ret != MM_ERROR_NONE) {
                        LOGE("failed to set geometry for evas surface 0x%x", ret);
                        return CAMERA_ERROR_INVALID_OPERATION;
                }
        }
-#endif /* TIZEN_FEATURE_EVAS_RENDERER */
 
-       muse_camera_msg_send1(MUSE_CAMERA_API_SET_DISPLAY_MODE,
-               pc->cb_info->fd, pc->cb_info, ret, INT, set_mode);
+       CAMERA_MSG_PARAM_SET(param, INT, set_mode);
+
+       _camera_msg_send_param1(MUSE_CAMERA_API_SET_DISPLAY_MODE, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
 
        return ret;
 }
 
+
 int camera_get_display_mode(camera_h camera, camera_display_mode_e *mode)
 {
        int ret = CAMERA_ERROR_NONE;
-       int get_mode = CAMERA_DISPLAY_MODE_LETTER_BOX;
-       camera_cli_s *pc = NULL;
-
-       if (camera == NULL || mode == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
-       pc = (camera_cli_s *)camera;
+       camera_cli_s *pc = (camera_cli_s *)camera;
 
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !mode) {
+               LOGE("NULL pointer %p %p", pc, mode);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       muse_camera_msg_send(MUSE_CAMERA_API_GET_DISPLAY_MODE,
-               pc->cb_info->fd, pc->cb_info, ret);
+       _camera_msg_send(MUSE_CAMERA_API_GET_DISPLAY_MODE, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_mode, pc->cb_info->recv_msg);
-               *mode = (camera_display_mode_e)get_mode;
-       }
+       if (ret == CAMERA_ERROR_NONE)
+               *mode = (camera_display_mode_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_DISPLAY_MODE];
 
        return ret;
 }
@@ -3269,21 +3582,18 @@ int camera_set_display_reuse_hint(camera_h camera, bool hint)
        int ret = CAMERA_ERROR_NONE;
        int set_hint = (int)hint;
        camera_cli_s *pc = (camera_cli_s *)camera;
+       camera_msg_param param;
 
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
+       LOGD("Enter - hint %d", set_hint);
 
-       LOGD("set display reuse hint %d", set_hint);
+       CAMERA_MSG_PARAM_SET(param, INT, set_hint);
 
-       muse_camera_msg_send1(MUSE_CAMERA_API_SET_DISPLAY_REUSE_HINT,
-               pc->cb_info->fd, pc->cb_info, ret, INT, set_hint);
+       _camera_msg_send_param1(MUSE_CAMERA_API_SET_DISPLAY_REUSE_HINT, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
 
        return ret;
 }
@@ -3292,29 +3602,19 @@ int camera_set_display_reuse_hint(camera_h camera, bool hint)
 int camera_get_display_reuse_hint(camera_h camera, bool *hint)
 {
        int ret = CAMERA_ERROR_NONE;
-       int get_hint = 0;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_GET_DISPLAY_REUSE_HINT;
 
-       if (camera == NULL || hint == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !hint) {
+               LOGE("NULL pointer %p %p", pc, hint);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
-       muse_camera_msg_send(api, pc->cb_info->fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
        if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_hint, pc->cb_info->recv_msg);
-               *hint = (bool)get_hint;
-
+               *hint = (bool)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_DISPLAY_REUSE_HINT];
                LOGD("display reuse hint %d", *hint);
-       } else {
-               LOGE("failed 0x%x", ret);
        }
 
        return ret;
@@ -3323,188 +3623,174 @@ int camera_get_display_reuse_hint(camera_h camera, bool *hint)
 
 int camera_get_capture_resolution(camera_h camera, int *width, int *height)
 {
-       if (camera == NULL || width == NULL || height == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_GET_CAPTURE_RESOLUTION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !width || !height) {
+               LOGE("NULL pointer %p %p %p", pc, width, height);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_width;
-       int get_height;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
        if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_width, pc->cb_info->recv_msg);
-               muse_camera_msg_get(get_height, pc->cb_info->recv_msg);
-               *width = get_width;
-               *height = get_height;
+               *width = pc->cb_info->get_int[MUSE_CAMERA_GET_INT_CAPTURE_RESOLUTION] >> 16;
+               *height = 0x0000ffff & pc->cb_info->get_int[MUSE_CAMERA_GET_INT_CAPTURE_RESOLUTION];
        }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_get_capture_format(camera_h camera, camera_pixel_format_e *format)
 {
-       if (camera == NULL || format == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_GET_CAPTURE_FORMAT;
-       int get_format;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !format) {
+               LOGE("NULL pointer %p %p", pc, format);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *format = (camera_pixel_format_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_CAPTURE_FORMAT];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_format, pc->cb_info->recv_msg);
-               *format = (camera_pixel_format_e)get_format;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
-int camera_get_preview_format(camera_h camera, camera_pixel_format_e *format)
-{
-       if (camera == NULL || format == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
 
+int camera_get_preview_format(camera_h camera, camera_pixel_format_e *format)
+{
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_GET_PREVIEW_FORMAT;
-       int get_format;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !format) {
+               LOGE("NULL pointer %p %p", pc, format);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *format = (camera_pixel_format_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_PREVIEW_FORMAT];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_format, pc->cb_info->recv_msg);
-               *format = (camera_pixel_format_e)get_format;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
-int camera_get_facing_direction(camera_h camera, camera_facing_direction_e *facing_direciton)
-{
-       if (camera == NULL || facing_direciton == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
 
+int camera_get_facing_direction(camera_h camera, camera_facing_direction_e *facing_direction)
+{
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_GET_FACING_DIRECTION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !facing_direction) {
+               LOGE("NULL pointer %p %p", pc, facing_direction);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_facing_direction;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *facing_direction = (camera_facing_direction_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_FACING_DIRECTION];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_facing_direction, pc->cb_info->recv_msg);
-               *facing_direciton = (camera_facing_direction_e)get_facing_direction;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_set_preview_cb(camera_h camera, camera_preview_cb callback, void *user_data)
 {
-       if (camera == NULL || callback == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
-       camera_cb_info_s *cb_info = (camera_cb_info_s *)pc->cb_info;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_SET_PREVIEW_CB;
+
+       if (!pc || !pc->cb_info || !callback) {
+               LOGE("NULL pointer %p %p", pc, callback);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       muse_camera_api_e api = MUSE_CAMERA_API_SET_PREVIEW_CB;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_PREVIEW]);
 
-       pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_PREVIEW] = callback;
-       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_PREVIEW] = user_data;
-       SET_PREVIEW_CB_TYPE(cb_info, PREVIEW_CB_TYPE_USER);
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_PREVIEW] = callback;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_PREVIEW] = user_data;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_PREVIEW]);
+
+               SET_PREVIEW_CB_TYPE(pc->cb_info, PREVIEW_CB_TYPE_USER);
+       }
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_unset_preview_cb(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       int ret = CAMERA_ERROR_NONE;
+       camera_cli_s *pc = (camera_cli_s *)camera;
+       muse_camera_api_e api = MUSE_CAMERA_API_UNSET_PREVIEW_CB;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       int ret = CAMERA_ERROR_NONE;
+       LOGD("Enter");
 
-       camera_cli_s *pc = (camera_cli_s *)camera;
-       camera_cb_info_s *cb_info = (camera_cb_info_s *)pc->cb_info;
-       muse_camera_api_e api = MUSE_CAMERA_API_UNSET_PREVIEW_CB;
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_PREVIEW]);
 
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_PREVIEW] = NULL;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_PREVIEW] = NULL;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_PREVIEW]);
+
+               UNSET_PREVIEW_CB_TYPE(pc->cb_info, PREVIEW_CB_TYPE_USER);
        }
-       sock_fd = pc->cb_info->fd;
-       pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_PREVIEW] = (void *)NULL;
-       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_PREVIEW] = (void *)NULL;
-       UNSET_PREVIEW_CB_TYPE(cb_info, PREVIEW_CB_TYPE_USER);
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_set_media_packet_preview_cb(camera_h camera, camera_media_packet_preview_cb callback, void *user_data)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x) - handle", CAMERA_ERROR_INVALID_PARAMETER);
+       int ret = CAMERA_ERROR_NONE;
+       camera_cli_s *pc = (camera_cli_s *)camera;
+       muse_camera_api_e api = MUSE_CAMERA_API_SET_MEDIA_PACKET_PREVIEW_CB;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
@@ -3514,1874 +3800,1845 @@ int camera_set_media_packet_preview_cb(camera_h camera, camera_media_packet_prev
        }
 
        if (callback == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x) - callback", CAMERA_ERROR_INVALID_PARAMETER);
+               LOGE("NULL callback");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       int ret = CAMERA_ERROR_NONE;
+       LOGD("Enter");
 
-       camera_cli_s *pc = (camera_cli_s *)camera;
-       muse_camera_api_e api = MUSE_CAMERA_API_SET_MEDIA_PACKET_PREVIEW_CB;
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW]);
 
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW] = callback;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW] = user_data;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW]);
        }
-       sock_fd = pc->cb_info->fd;
-       pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW] = callback;
-       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_unset_media_packet_preview_cb(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       int ret = CAMERA_ERROR_NONE;
+       camera_cli_s *pc = (camera_cli_s *)camera;
+       muse_camera_api_e api = MUSE_CAMERA_API_UNSET_MEDIA_PACKET_PREVIEW_CB;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       int ret = CAMERA_ERROR_NONE;
+       LOGD("Enter");
 
-       camera_cli_s *pc = (camera_cli_s *)camera;
-       muse_camera_api_e api = MUSE_CAMERA_API_UNSET_MEDIA_PACKET_PREVIEW_CB;
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW]);
 
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW] = NULL;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW] = NULL;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW]);
        }
-       sock_fd = pc->cb_info->fd;
-       pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW] = (void *)NULL;
-       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_MEDIA_PACKET_PREVIEW] = (void *)NULL;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_set_state_changed_cb(camera_h camera, camera_state_changed_cb callback, void *user_data)
 {
-       if (camera == NULL || callback == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_SET_STATE_CHANGED_CB;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !callback) {
+               LOGE("NULL pointer %p %p", pc, callback);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_STATE_CHANGE] = callback;
-       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_STATE_CHANGE] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_STATE_CHANGE]);
+
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_STATE_CHANGE] = callback;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_STATE_CHANGE] = user_data;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_STATE_CHANGE]);
+       }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
+
+
 int camera_unset_state_changed_cb(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_UNSET_STATE_CHANGED_CB;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_STATE_CHANGE] = (void *)NULL;
-       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_STATE_CHANGE] = (void *)NULL;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_STATE_CHANGE]);
+
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_STATE_CHANGE] = NULL;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_STATE_CHANGE] = NULL;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_STATE_CHANGE]);
+       }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_set_interrupted_cb(camera_h camera, camera_interrupted_cb callback, void *user_data)
 {
-       if (camera == NULL || callback == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_SET_INTERRUPTED_CB;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !callback) {
+               LOGE("NULL pointer %p %p", pc, callback);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_INTERRUPTED] = callback;
-       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_INTERRUPTED] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_INTERRUPTED]);
+
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_INTERRUPTED] = callback;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_INTERRUPTED] = user_data;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_INTERRUPTED]);
+       }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_unset_interrupted_cb(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_UNSET_INTERRUPTED_CB;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_INTERRUPTED] = (void *)NULL;
-       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_INTERRUPTED] = (void *)NULL;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_INTERRUPTED]);
+
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_INTERRUPTED] = NULL;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_INTERRUPTED] = NULL;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_INTERRUPTED]);
+       }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
-int camera_set_focus_changed_cb(camera_h camera, camera_focus_changed_cb callback, void *user_data)
+
+int camera_set_interrupt_started_cb(camera_h camera, camera_interrupt_started_cb callback, void *user_data)
 {
-       if (camera == NULL || callback == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       int ret = CAMERA_ERROR_NONE;
+       camera_cli_s *pc = (camera_cli_s *)camera;
+       muse_camera_api_e api = MUSE_CAMERA_API_SET_INTERRUPT_STARTED_CB;
+
+       if (!pc || !pc->cb_info || !callback) {
+               LOGE("NULL pointer %p %p", pc, callback);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
+
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_INTERRUPT_STARTED]);
+
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_INTERRUPT_STARTED] = callback;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_INTERRUPT_STARTED] = user_data;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_INTERRUPT_STARTED]);
+       }
+
+       LOGD("ret : 0x%x", ret);
+
+       return ret;
+}
+
+
+int camera_unset_interrupt_started_cb(camera_h camera)
+{
        int ret = CAMERA_ERROR_NONE;
+       camera_cli_s *pc = (camera_cli_s *)camera;
+       muse_camera_api_e api = MUSE_CAMERA_API_UNSET_INTERRUPT_STARTED_CB;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
+               return CAMERA_ERROR_INVALID_PARAMETER;
+       }
+
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_INTERRUPT_STARTED]);
+
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_INTERRUPT_STARTED] = NULL;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_INTERRUPT_STARTED] = NULL;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_INTERRUPT_STARTED]);
+       }
+
+       LOGD("ret : 0x%x", ret);
+
+       return ret;
+}
 
+
+int camera_set_focus_changed_cb(camera_h camera, camera_focus_changed_cb callback, void *user_data)
+{
+       int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_SET_FOCUS_CHANGED_CB;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !callback) {
+               LOGE("NULL pointer %p %p", pc, callback);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOCUS_CHANGE] = callback;
-       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOCUS_CHANGE] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_FOCUS_CHANGE]);
+
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOCUS_CHANGE] = callback;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOCUS_CHANGE] = user_data;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_FOCUS_CHANGE]);
+       }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_unset_focus_changed_cb(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_UNSET_FOCUS_CHANGED_CB;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOCUS_CHANGE] = (void *)NULL;
-       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOCUS_CHANGE] = (void *)NULL;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_FOCUS_CHANGE]);
+
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOCUS_CHANGE] = NULL;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOCUS_CHANGE] = NULL;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_FOCUS_CHANGE]);
+       }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_set_error_cb(camera_h camera, camera_error_cb callback, void *user_data)
 {
-       if (camera == NULL || callback == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_SET_ERROR_CB;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !callback) {
+               LOGE("NULL pointer %p %p", pc, callback);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_ERROR] = callback;
-       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_ERROR] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_ERROR]);
+
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_ERROR] = callback;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_ERROR] = user_data;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_ERROR]);
+       }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_unset_error_cb(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_UNSET_ERROR_CB;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_ERROR] = (void *)NULL;
-       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_ERROR] = (void *)NULL;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_ERROR]);
+
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_ERROR] = NULL;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_ERROR] = NULL;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_ERROR]);
+       }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
-int camera_foreach_supported_preview_resolution(camera_h camera, camera_supported_preview_resolution_cb foreach_cb , void *user_data)
+
+int camera_foreach_supported_preview_resolution(camera_h camera, camera_supported_preview_resolution_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_SET_FOREACH_SUPPORTED_PREVIEW_RESOLUTION;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_PREVIEW_RESOLUTION] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_PREVIEW_RESOLUTION] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
-int camera_foreach_supported_capture_resolution(camera_h camera, camera_supported_capture_resolution_cb foreach_cb , void *user_data)
+
+int camera_foreach_supported_capture_resolution(camera_h camera, camera_supported_capture_resolution_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_SET_FOREACH_SUPPORTED_CAPTURE_RESOLUTION;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_CAPTURE_RESOLUTION] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_CAPTURE_RESOLUTION] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
-int camera_foreach_supported_capture_format(camera_h camera, camera_supported_capture_format_cb foreach_cb , void *user_data)
+
+int camera_foreach_supported_capture_format(camera_h camera, camera_supported_capture_format_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_SET_FOREACH_SUPPORTED_CAPTURE_FORMAT;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_CAPTURE_FORMAT] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_CAPTURE_FORMAT] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_foreach_supported_preview_format(camera_h camera, camera_supported_preview_format_cb foreach_cb , void *user_data)
+int camera_foreach_supported_preview_format(camera_h camera, camera_supported_preview_format_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_SET_FOREACH_SUPPORTED_PREVIEW_FORMAT;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_PREVIEW_FORMAT] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_PREVIEW_FORMAT] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_get_recommended_preview_resolution(camera_h camera, int *width, int *height)
 {
-       if (camera == NULL || width == NULL || height == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_GET_RECOMMENDED_PREVIEW_RESOLUTION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !width || !height) {
+               LOGE("NULL pointer %p %p %p", pc, width, height);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_width;
-       int get_height;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
        if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_width, pc->cb_info->recv_msg);
-               muse_camera_msg_get(get_height, pc->cb_info->recv_msg);
-               *width = get_width;
-               *height = get_height;
+               *width = pc->cb_info->get_int[MUSE_CAMERA_GET_INT_RECOMMENDED_PREVIEW_RESOLUTION] >> 16;
+               *height = 0x0000ffff & pc->cb_info->get_int[MUSE_CAMERA_GET_INT_RECOMMENDED_PREVIEW_RESOLUTION];
        }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_get_lens_orientation(camera_h camera, int *angle)
 {
-       if (camera == NULL || angle == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_LENS_ORIENTATION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !angle) {
+               LOGE("NULL pointer %p %p", pc, angle);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_angle;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *angle = pc->cb_info->get_int[MUSE_CAMERA_GET_INT_LENS_ORIENTATION];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_angle, pc->cb_info->recv_msg);
-               *angle = get_angle;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_attr_set_theater_mode(camera_h camera, camera_attr_theater_mode_e mode)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_THEATER_MODE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_mode = (int)mode;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_mode = (int)mode;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_mode);
+
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_mode);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_attr_get_theater_mode(camera_h camera, camera_attr_theater_mode_e *mode)
 {
-       if (camera == NULL || mode == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_THEATER_MODE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !mode) {
+               LOGE("NULL pointer %p %p", pc, mode);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_mode;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_mode, pc->cb_info->recv_msg);
-               *mode = (camera_attr_theater_mode_e)get_mode;
-       }
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *mode = (camera_attr_theater_mode_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_THEATER_MODE];
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_attr_foreach_supported_theater_mode(camera_h camera, camera_attr_supported_theater_mode_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_FOREACH_SUPPORTED_THEATER_MODE;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_THEATER_MODE] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_THEATER_MODE] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
        LOGD("Finish, return :%x", ret);
 
        return ret;
 }
 
-int camera_attr_set_preview_fps(camera_h camera,  camera_attr_fps_e fps)
+
+int camera_attr_set_preview_fps(camera_h camera, camera_attr_fps_e fps)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_PREVIEW_FPS;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_fps = (int)fps;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_fps = (int)fps;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_fps);
+
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_fps);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_set_image_quality(camera_h camera,  int quality)
+int camera_attr_set_image_quality(camera_h camera, int quality)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_IMAGE_QUALITY;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, quality);
+
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, quality);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
-int camera_attr_get_preview_fps(camera_h camera,  camera_attr_fps_e *fps)
+
+int camera_attr_get_preview_fps(camera_h camera, camera_attr_fps_e *fps)
 {
-       if (camera == NULL || fps == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_PREVIEW_FPS;
-       int get_fps;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !fps) {
+               LOGE("NULL pointer %p %p", pc, fps);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *fps = (camera_attr_fps_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_PREVIEW_FPS];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_fps, pc->cb_info->recv_msg);
-               *fps = (camera_attr_fps_e)get_fps;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_get_image_quality(camera_h camera, int *quality)
 {
-       if (camera == NULL || quality == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_IMAGE_QUALITY;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !quality) {
+               LOGE("NULL pointer %p %p", pc, quality);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_quality;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_quality, pc->cb_info->recv_msg);
-               *quality = get_quality;
-       }
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *quality = pc->cb_info->get_int[MUSE_CAMERA_GET_INT_IMAGE_QUALITY];
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_get_encoded_preview_bitrate(camera_h camera, int *bitrate)
 {
-       if (camera == NULL || bitrate == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_ENCODED_PREVIEW_BITRATE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !bitrate) {
+               LOGE("NULL pointer %p %p", pc, bitrate);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_bitrate;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *bitrate = pc->cb_info->get_int[MUSE_CAMERA_GET_INT_ENCODED_PREVIEW_BITRATE];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_bitrate, pc->cb_info->recv_msg);
-               *bitrate = get_bitrate;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_set_encoded_preview_bitrate(camera_h camera, int bitrate)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_ENCODED_PREVIEW_BITRATE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_bitrate = bitrate;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_bitrate = bitrate;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_bitrate);
+
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_bitrate);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_get_encoded_preview_gop_interval(camera_h camera, int *interval)
 {
-       if (camera == NULL || interval == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_ENCODED_PREVIEW_GOP_INTERVAL;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !interval) {
+               LOGE("NULL pointer %p %p", pc, interval);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_gop_interval;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *interval = pc->cb_info->get_int[MUSE_CAMERA_GET_INT_ENCODED_PREVIEW_GOP_INTERVAL];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_gop_interval, pc->cb_info->recv_msg);
-               *interval = get_gop_interval;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_set_encoded_preview_gop_interval(camera_h camera, int interval)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_ENCODED_PREVIEW_GOP_INTERVAL;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_gop_interval = interval;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_gop_interval = interval;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_gop_interval);
+
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_gop_interval);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_set_zoom(camera_h camera, int zoom)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_ZOOM;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, zoom);
+       LOGD("Enter, remote_handle : %td", pc->remote_handle);
+
+       CAMERA_MSG_PARAM_SET(param, INT, zoom);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
-int camera_attr_set_af_mode(camera_h camera,  camera_attr_af_mode_e mode)
+
+int camera_attr_set_af_mode(camera_h camera, camera_attr_af_mode_e mode)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_AF_MODE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_mode = (int)mode;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_mode = (int)mode;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_mode);
-       LOGD("ret : 0x%x", ret);
+
+       LOGD("Enter, remote_handle : %td", pc->remote_handle);
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_mode);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        return ret;
 }
 
+
 int camera_attr_set_af_area(camera_h camera, int x, int y)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_AF_AREA;
-       int sock_fd = pc->cb_info->fd;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send2(api, sock_fd, pc->cb_info, ret, INT, x, INT, y);
+       camera_msg_param param;
+       int value = 0;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
+               return CAMERA_ERROR_INVALID_PARAMETER;
+       }
+
+       LOGD("Enter - %d,%d", x, y);
+
+       value = (x << 16) | y;
+       CAMERA_MSG_PARAM_SET(param, INT, value);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_clear_af_area(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_CLEAR_AF_AREA;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_set_exposure_mode(camera_h camera,  camera_attr_exposure_mode_e mode)
+int camera_attr_set_exposure_mode(camera_h camera, camera_attr_exposure_mode_e mode)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
-       if (mode < CAMERA_ATTR_EXPOSURE_MODE_OFF || mode > CAMERA_ATTR_EXPOSURE_MODE_CUSTOM) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_EXPOSURE_MODE;
+       camera_msg_param param;
        int set_mode = (int)mode;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_mode);
+
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_mode);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_set_exposure(camera_h camera, int value)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_EXPOSURE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, value);
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, value);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_set_iso(camera_h camera, camera_attr_iso_e iso)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_ISO;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_iso = (int)iso;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_iso = (int)iso;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_iso);
+
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_iso);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_set_brightness(camera_h camera, int level)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_BRIGHTNESS;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, level);
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, level);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_set_contrast(camera_h camera, int level)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_CONTRAST;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, level);
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, level);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_set_whitebalance(camera_h camera, camera_attr_whitebalance_e wb)
+int camera_attr_set_hue(camera_h camera, int level)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
+       int ret = CAMERA_ERROR_NONE;
+       camera_cli_s *pc = (camera_cli_s *)camera;
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_HUE;
+       camera_msg_param param;
 
-       if (wb < CAMERA_ATTR_WHITE_BALANCE_NONE || wb > CAMERA_ATTR_WHITE_BALANCE_CUSTOM) {
-               LOGE("invalid white balance %d", wb);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       int ret = CAMERA_ERROR_NONE;
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, level);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
+       LOGD("ret : 0x%x", ret);
+
+       return ret;
+}
+
 
+int camera_attr_set_whitebalance(camera_h camera, camera_attr_whitebalance_e wb)
+{
+       int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_WHITEBALANCE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_whitebalance = (int)wb;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_whitebalance = (int)wb;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_whitebalance);
+
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_whitebalance);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_set_effect(camera_h camera, camera_attr_effect_mode_e effect)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_EFFECT;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_effect = (int)effect;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_effect = (int)effect;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_effect);
+
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_effect);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_set_scene_mode(camera_h camera, camera_attr_scene_mode_e mode)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_SCENE_MODE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_mode = (int)mode;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_mode = (int)mode;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_mode);
+
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_mode);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_enable_tag(camera_h camera, bool enable)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_ENABLE_TAG;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_enable = (int)enable;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_enable = (int)enable;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_enable);
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_enable);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_set_tag_image_description(camera_h camera, const char *description)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-       if (description == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_TAG_IMAGE_DESCRIPTION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+
+       if (!pc || !pc->cb_info || !description) {
+               LOGE("NULL pointer %p %p", pc, description);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, STRING, description);
+
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, STRING, description);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_set_tag_orientation(camera_h camera,  camera_attr_tag_orientation_e orientation)
+int camera_attr_set_tag_orientation(camera_h camera, camera_attr_tag_orientation_e orientation)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_TAG_ORIENTATION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_orientation = (int)orientation;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_orientation = (int)orientation;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_orientation);
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_orientation);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_set_tag_software(camera_h camera,  const char *software)
+int camera_attr_set_tag_software(camera_h camera, const char *software)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-       if (software == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_TAG_SOFTWARE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+
+       if (!pc || !pc->cb_info || !software) {
+               LOGE("NULL pointer %p %p", pc, software);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, STRING, software);
+
+       LOGD("Enter, remote_handle : %td", pc->remote_handle);
+
+       CAMERA_MSG_PARAM_SET(param, STRING, software);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_set_geotag(camera_h camera, double latitude , double longitude, double altitude)
+int camera_attr_set_geotag(camera_h camera, double latitude, double longitude, double altitude)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_GEOTAG;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       double set_geotag[3] = {latitude, longitude, altitude};
+       char *msg = NULL;
+       int length = 0;
+       int send_ret = 0;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       double set_geotag[3] = { latitude, longitude, altitude };
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send_array(api, sock_fd, pc->cb_info, ret,
-                                                                       set_geotag, sizeof(set_geotag), sizeof(double));
+       LOGD("Enter");
+
+       length = sizeof(set_geotag) / sizeof(int) + \
+               (sizeof(set_geotag) % sizeof(int) ? 1 : 0);
+
+       msg = muse_core_msg_new(api,
+               MUSE_TYPE_ARRAY, "set_geotag", length, (int *)set_geotag,
+               NULL);
+       if (!msg) {
+               LOGE("msg creation failed: api %d", api);
+               return CAMERA_ERROR_OUT_OF_MEMORY;
+       }
+
+       if (pc->cb_info->is_server_connected) {
+               __camera_update_api_waiting(pc->cb_info, api, 1);
+
+               g_mutex_lock(&pc->cb_info->fd_lock);
+               send_ret = muse_core_msg_send(pc->cb_info->fd, msg);
+               g_mutex_unlock(&pc->cb_info->fd_lock);
+       }
+
+       if (send_ret < 0) {
+               LOGE("message send failed");
+               ret = CAMERA_ERROR_INVALID_OPERATION;
+       } else {
+               ret = _camera_client_wait_for_cb_return(api, pc->cb_info, CAMERA_CB_TIMEOUT);
+       }
+
+       __camera_update_api_waiting(pc->cb_info, api, -1);
+
+       muse_core_msg_free(msg);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_remove_geotag(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_REMOVE_GEOTAG;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_set_flash_mode(camera_h camera, camera_attr_flash_mode_e mode)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_FLASH_MODE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_mode = (int)mode;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_mode = (int)mode;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_mode);
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_mode);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_get_zoom(camera_h camera, int *zoom)
 {
-       if (camera == NULL || zoom == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_ZOOM;
-       int get_zoom;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !zoom) {
+               LOGE("NULL pointer %p %p", pc, zoom);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *zoom = pc->cb_info->get_int[MUSE_CAMERA_GET_INT_ZOOM];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_zoom, pc->cb_info->recv_msg);
-               *zoom = get_zoom;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_get_zoom_range(camera_h camera, int *min, int *max)
 {
-       if (camera == NULL || min == NULL || max == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_ZOOM_RANGE;
+
+       if (!pc || !pc->cb_info || !min || !max) {
+               LOGE("NULL pointer %p %p %p", pc, min, max);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_ZOOM_RANGE;
-       int get_min;
-       int get_max;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
        if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_min, pc->cb_info->recv_msg);
-               muse_camera_msg_get(get_max, pc->cb_info->recv_msg);
-               *min = get_min;
-               *max = get_max;
+               *min = pc->cb_info->get_int_pair[MUSE_CAMERA_GET_INT_PAIR_ZOOM_RANGE][0];
+               *max = pc->cb_info->get_int_pair[MUSE_CAMERA_GET_INT_PAIR_ZOOM_RANGE][1];
        }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_get_af_mode(camera_h camera, camera_attr_af_mode_e *mode)
 {
-       if (camera == NULL || mode == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_AF_MODE;
+
+       if (!pc || !pc->cb_info || !mode) {
+               LOGE("NULL pointer %p %p", pc, mode);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_AF_MODE;
-       int get_mode;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *mode = (camera_attr_af_mode_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_AF_MODE];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_mode, pc->cb_info->recv_msg);
-               *mode = (camera_attr_af_mode_e)get_mode;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_get_exposure_mode(camera_h camera, camera_attr_exposure_mode_e *mode)
 {
-       if (camera == NULL || mode == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_EXPOSURE_MODE;
+
+       if (!pc || !pc->cb_info || !mode) {
+               LOGE("NULL pointer %p %p", pc, mode);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_EXPOSURE_MODE;
-       int get_mode;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *mode = (camera_attr_exposure_mode_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_EXPOSURE_MODE];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_mode, pc->cb_info->recv_msg);
-               *mode = (camera_attr_exposure_mode_e)get_mode;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_attr_get_exposure(camera_h camera, int *value)
 {
-       if (camera == NULL || value == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       int ret = CAMERA_ERROR_NONE;
+       camera_cli_s *pc = (camera_cli_s *)camera;
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_EXPOSURE;
+
+       if (!pc || !pc->cb_info || !value) {
+               LOGE("NULL pointer %p %p", pc, value);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
+
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *value = pc->cb_info->get_int[MUSE_CAMERA_GET_INT_EXPOSURE];
+
+       LOGD("ret : 0x%x", ret);
+
+       return ret;
+}
+
+
+int camera_attr_get_exposure_range(camera_h camera, int *min, int *max)
+{
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_EXPOSURE_RANGE;
+
+       if (!pc || !pc->cb_info || !min || !max) {
+               LOGE("NULL pointer %p %p %p", pc, min, max);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_EXPOSURE;
-       int get_value;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
        if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_value, pc->cb_info->recv_msg);
-               *value = get_value;
+               *min = pc->cb_info->get_int_pair[MUSE_CAMERA_GET_INT_PAIR_EXPOSURE_RANGE][0];
+               *max = pc->cb_info->get_int_pair[MUSE_CAMERA_GET_INT_PAIR_EXPOSURE_RANGE][1];
        }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_get_exposure_range(camera_h camera, int *min, int *max)
+int camera_attr_get_iso(camera_h camera, camera_attr_iso_e *iso)
 {
-       if (camera == NULL || min == NULL || max == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       int ret = CAMERA_ERROR_NONE;
+       camera_cli_s *pc = (camera_cli_s *)camera;
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_ISO;
+
+       if (!pc || !pc->cb_info || !iso) {
+               LOGE("NULL pointer %p %p", pc, iso);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
+
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *iso = (camera_attr_iso_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_ISO];
+
+       LOGD("ret : 0x%x", ret);
+
+       return ret;
+}
+
+
+int camera_attr_get_brightness(camera_h camera, int *level)
+{
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_BRIGHTNESS;
+
+       if (!pc || !pc->cb_info || !level) {
+               LOGE("NULL pointer %p %p", pc, level);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_EXPOSURE_RANGE;
-       int get_min;
-       int get_max;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *level = pc->cb_info->get_int[MUSE_CAMERA_GET_INT_BRIGHTNESS];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_min, pc->cb_info->recv_msg);
-               muse_camera_msg_get(get_max, pc->cb_info->recv_msg);
-               *min = get_min;
-               *max = get_max;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_get_iso(camera_h camera, camera_attr_iso_e *iso)
+int camera_attr_get_brightness_range(camera_h camera, int *min, int *max)
 {
-       if (camera == NULL || iso == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_BRIGHTNESS_RANGE;
+
+       if (!pc || !pc->cb_info || !min || !max) {
+               LOGE("NULL pointer %p %p %p", pc, min, max);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_ISO;
-       int get_iso;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
        if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_iso, pc->cb_info->recv_msg);
-               *iso = (camera_attr_iso_e)get_iso;
+               *min = pc->cb_info->get_int_pair[MUSE_CAMERA_GET_INT_PAIR_BRIGHTNESS_RANGE][0];
+               *max = pc->cb_info->get_int_pair[MUSE_CAMERA_GET_INT_PAIR_BRIGHTNESS_RANGE][1];
        }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_get_brightness(camera_h camera,  int *level)
+int camera_attr_get_contrast(camera_h camera, int *level)
 {
-       if (camera == NULL || level == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_CONTRAST;
+
+       if (!pc || !pc->cb_info || !level) {
+               LOGE("NULL pointer %p %p", pc, level);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_BRIGHTNESS;
-       int get_level;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *level = pc->cb_info->get_int[MUSE_CAMERA_GET_INT_CONTRAST];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_level, pc->cb_info->recv_msg);
-               *level = get_level;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_get_brightness_range(camera_h camera, int *min, int *max)
+int camera_attr_get_contrast_range(camera_h camera, int *min, int *max)
 {
-       if (camera == NULL || min == NULL || max == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_CONTRAST_RANGE;
+
+       if (!pc || !pc->cb_info || !min || !max) {
+               LOGE("NULL pointer %p %p %p", pc, min, max);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_BRIGHTNESS_RANGE;
-       int get_min;
-       int get_max;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
        if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_min, pc->cb_info->recv_msg);
-               muse_camera_msg_get(get_max, pc->cb_info->recv_msg);
-               *min = get_min;
-               *max = get_max;
+               *min = pc->cb_info->get_int_pair[MUSE_CAMERA_GET_INT_PAIR_CONTRAST_RANGE][0];
+               *max = pc->cb_info->get_int_pair[MUSE_CAMERA_GET_INT_PAIR_CONTRAST_RANGE][1];
+               LOGD("min %d, max %d", *min, *max);
        }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_get_contrast(camera_h camera,  int *level)
+int camera_attr_get_hue(camera_h camera, int *level)
 {
-       if (camera == NULL || level == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_CONTRAST;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_HUE;
+
+       if (!pc || !pc->cb_info || !level) {
+               LOGE("NULL pointer %p %p", pc, level);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_level;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *level = pc->cb_info->get_int[MUSE_CAMERA_GET_INT_HUE];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_level, pc->cb_info->recv_msg);
-               *level = get_level;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_get_contrast_range(camera_h camera, int *min , int *max)
+int camera_attr_get_hue_range(camera_h camera, int *min, int *max)
 {
-       if (camera == NULL || min == NULL || max == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_CONTRAST_RANGE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_HUE_RANGE;
+
+       if (!pc || !pc->cb_info || !min || !max) {
+               LOGE("NULL pointer %p %p %p", pc, min, max);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_min;
-       int get_max;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
        if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_min, pc->cb_info->recv_msg);
-               muse_camera_msg_get(get_max, pc->cb_info->recv_msg);
-               *min = get_min;
-               *max = get_max;
+               *min = pc->cb_info->get_int_pair[MUSE_CAMERA_GET_INT_PAIR_HUE_RANGE][0];
+               *max = pc->cb_info->get_int_pair[MUSE_CAMERA_GET_INT_PAIR_HUE_RANGE][1];
+               LOGD("min %d, max %d", *min, *max);
        }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_get_whitebalance(camera_h camera,  camera_attr_whitebalance_e *wb)
+int camera_attr_get_whitebalance(camera_h camera, camera_attr_whitebalance_e *wb)
 {
-       if (camera == NULL || wb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_WHITEBALANCE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !wb) {
+               LOGE("NULL pointer %p %p", pc, wb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_wb;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *wb = (camera_attr_whitebalance_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_WHITE_BALANCE];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_wb, pc->cb_info->recv_msg);
-               *wb = (camera_attr_whitebalance_e)get_wb;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_get_effect(camera_h camera, camera_attr_effect_mode_e *effect)
 {
-       if (camera == NULL || effect == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_EFFECT;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !effect) {
+               LOGE("NULL pointer %p %p", pc, effect);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_effect;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *effect = (camera_attr_effect_mode_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_EFFECT];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_effect, pc->cb_info->recv_msg);
-               *effect = (camera_attr_effect_mode_e)get_effect;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_get_scene_mode(camera_h camera,  camera_attr_scene_mode_e *mode)
+int camera_attr_get_scene_mode(camera_h camera, camera_attr_scene_mode_e *mode)
 {
-       if (camera == NULL || mode == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_SCENE_MODE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !mode) {
+               LOGE("NULL pointer %p %p", pc, mode);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_mode;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *mode = (camera_attr_scene_mode_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_SCENE_MODE];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_mode, pc->cb_info->recv_msg);
-               *mode = (camera_attr_scene_mode_e)get_mode;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_is_enabled_tag(camera_h camera,  bool *enable)
+int camera_attr_is_enabled_tag(camera_h camera, bool *enable)
 {
-       if (camera == NULL || enable == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_IS_ENABLED_TAG;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !enable) {
+               LOGE("NULL pointer %p %p", pc, enable);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_enabled;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *enable = (bool)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_ENABLED_TAG];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_enabled, pc->cb_info->recv_msg);
-               *enable = (bool)get_enabled;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_get_tag_image_description(camera_h camera,  char **description)
+int camera_attr_get_tag_image_description(camera_h camera, char **description)
 {
-       if (camera == NULL || description == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_TAG_IMAGE_DESCRIPTION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !description) {
+               LOGE("NULL pointer %p %p", pc, description);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       char get_description[MUSE_CAMERA_MSG_MAX_LENGTH] = {0,};
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *description = strdup(pc->cb_info->get_string[MUSE_CAMERA_GET_STRING_TAG_IMAGE_DESCRIPTION]);
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get_string(get_description, pc->cb_info->recv_msg);
-               *description = strdup(get_description);
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_get_tag_orientation(camera_h camera, camera_attr_tag_orientation_e *orientation)
 {
-       if (camera == NULL || orientation == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_TAG_ORIENTATION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !orientation) {
+               LOGE("NULL pointer %p %p", pc, orientation);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_orientation;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *orientation = (camera_attr_tag_orientation_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_TAG_ORIENTATION];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_orientation, pc->cb_info->recv_msg);
-               *orientation = (camera_attr_tag_orientation_e)get_orientation;
-               LOGD("success, orientation : %d", *orientation);
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_get_tag_software(camera_h camera, char **software)
 {
-       if (camera == NULL || software == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_TAG_SOFTWARE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !software) {
+               LOGE("NULL pointer %p %p", pc, software);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       char get_software[MUSE_CAMERA_MSG_MAX_LENGTH] = {0,};
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *software = strdup(pc->cb_info->get_string[MUSE_CAMERA_GET_STRING_TAG_SOFTWARE]);
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get_string(get_software, pc->cb_info->recv_msg);
-               *software = strdup(get_software);
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_get_geotag(camera_h camera, double *latitude , double *longitude, double *altitude)
+int camera_attr_get_geotag(camera_h camera, double *latitude, double *longitude, double *altitude)
 {
-       if (camera == NULL || latitude == NULL || longitude == NULL || altitude == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_GEOTAG;
-       double get_geotag[3] = {0,};
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !latitude || !longitude || !altitude) {
+               LOGE("NULL pointer %p %p %p %p", pc, latitude, longitude, altitude);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
+       LOGD("Enter");
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
        if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get_array(get_geotag, pc->cb_info->recv_msg);
-               *latitude = get_geotag[0];
-               *longitude = get_geotag[1];
-               *altitude = get_geotag[2];
-
-               LOGD("ret : 0x%x", ret);
-       } else {
-               LOGE("Returned value is not valid : 0x%x", ret);
+               *latitude = pc->cb_info->get_geotag[0];
+               *longitude = pc->cb_info->get_geotag[1];
+               *altitude = pc->cb_info->get_geotag[2];
        }
 
+       LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_get_flash_mode(camera_h camera,  camera_attr_flash_mode_e *mode)
+int camera_attr_get_flash_mode(camera_h camera, camera_attr_flash_mode_e *mode)
 {
-       if (camera == NULL || mode == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_FLASH_MODE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !mode) {
+               LOGE("NULL pointer %p %p", pc, mode);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_mode;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *mode = (camera_attr_flash_mode_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_FLASH_MODE];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_mode, pc->cb_info->recv_msg);
-               *mode = (camera_attr_flash_mode_e)get_mode;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_get_flash_state(camera_device_e device, camera_flash_state_e *state)
 {
-       int sock_fd = -1;
-       char *sndMsg;
        int ret = CAMERA_ERROR_NONE;
-       camera_cli_s *pc = NULL;
        int get_flash_state = 0;
 
-       /* create muse connection */
-       muse_camera_api_e api = MUSE_CAMERA_API_GET_FLASH_STATE;
-       muse_core_api_module_e muse_module = MUSE_CAMERA;
-       int device_type = (int)device;
-
-       if (state == NULL) {
-               LOGE("invalid pointer for state");
+       if (!state) {
+               LOGE("NULL pointer");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       sock_fd = muse_core_client_new();
-       if (sock_fd < 0) {
-               LOGE("muse_core_client_new failed - returned fd %d", sock_fd);
-               ret = CAMERA_ERROR_INVALID_OPERATION;
-               goto Exit;
-       }
-
-       sndMsg = muse_core_msg_json_factory_new(api,
-               MUSE_TYPE_INT, "module", muse_module,
-               MUSE_TYPE_INT, PARAM_DEVICE_TYPE, device_type,
-               0);
-
-       muse_core_ipc_send_msg(sock_fd, sndMsg);
-       muse_core_msg_json_factory_free(sndMsg);
-
-       pc = g_new0(camera_cli_s, 1);
-       if (pc == NULL) {
-               LOGE("camera_cli_s alloc failed");
-               ret = CAMERA_ERROR_OUT_OF_MEMORY;
-               goto Exit;
-       }
-
-       pc->cb_info = _client_callback_new(sock_fd);
-       if (pc->cb_info == NULL) {
-               LOGE("cb_info alloc failed");
-               ret = CAMERA_ERROR_OUT_OF_MEMORY;
-               goto Exit;
-       }
-
-       ret = _client_wait_for_cb_return(api, pc->cb_info, CALLBACK_TIME_OUT);
+       ret = _camera_independent_request(MUSE_CAMERA_API_GET_FLASH_STATE,
+               (int)device, "get_flash_state", &get_flash_state);
 
        if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_flash_state, pc->cb_info->recv_msg);
                *state = (camera_flash_state_e)get_flash_state;
-       }
-
-       LOGD("Flash state : %d\n", *state);
-
-Exit:
-       /* release resources */
-       if (pc) {
-               g_atomic_int_set(&pc->cb_info->msg_recv_running, 0);
-               g_atomic_int_set(&pc->cb_info->msg_handler_running, 0);
-               _client_callback_destroy(pc->cb_info);
-               pc->cb_info = NULL;
-               g_free(pc);
-               pc = NULL;
+               LOGD("flash state %d", *state);
+       } else {
+               LOGE("failed 0x%x", ret);
        }
 
        return ret;
@@ -5390,488 +5647,441 @@ Exit:
 
 int camera_attr_foreach_supported_af_mode(camera_h camera, camera_attr_supported_af_mode_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_FOREACH_SUPPORTED_AF_MODE;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_AF_MODE] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_AF_MODE] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_foreach_supported_exposure_mode(camera_h camera, camera_attr_supported_exposure_mode_cb foreach_cb , void *user_data)
+int camera_attr_foreach_supported_exposure_mode(camera_h camera, camera_attr_supported_exposure_mode_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_FOREACH_SUPPORTED_EXPOSURE_MODE;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_EXPOSURE_MODE] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_EXPOSURE_MODE] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_foreach_supported_iso(camera_h camera, camera_attr_supported_iso_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_FOREACH_SUPPORTED_ISO;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_ISO] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_ISO] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_foreach_supported_whitebalance(camera_h camera, camera_attr_supported_whitebalance_cb foreach_cb , void *user_data)
+int camera_attr_foreach_supported_whitebalance(camera_h camera, camera_attr_supported_whitebalance_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_FOREACH_SUPPORTED_WHITEBALANCE;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_WHITEBALANCE] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_WHITEBALANCE] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_foreach_supported_effect(camera_h camera, camera_attr_supported_effect_cb foreach_cb , void *user_data)
+int camera_attr_foreach_supported_effect(camera_h camera, camera_attr_supported_effect_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_FOREACH_SUPPORTED_EFFECT;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_EFFECT] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_EFFECT] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_foreach_supported_scene_mode(camera_h camera, camera_attr_supported_scene_mode_cb foreach_cb , void *user_data)
+int camera_attr_foreach_supported_scene_mode(camera_h camera, camera_attr_supported_scene_mode_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_FOREACH_SUPPORTED_SCENE_MODE;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_SCENE_MODE] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_SCENE_MODE] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_foreach_supported_flash_mode(camera_h camera, camera_attr_supported_flash_mode_cb foreach_cb , void *user_data)
+int camera_attr_foreach_supported_flash_mode(camera_h camera, camera_attr_supported_flash_mode_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_FOREACH_SUPPORTED_FLASH_MODE;
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
-
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_FLASH_MODE] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_FLASH_MODE] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_foreach_supported_fps(camera_h camera, camera_attr_supported_fps_cb foreach_cb , void *user_data)
+int camera_attr_foreach_supported_fps(camera_h camera, camera_attr_supported_fps_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_FOREACH_SUPPORTED_FPS;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       LOGD("Enter, handle :%x", pc->remote_handle);
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_FPS] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_FPS] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
-       LOGD("Enter, handle :%x", pc->remote_handle);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       LOGD("Enter, handle :%td", pc->remote_handle);
+
        return ret;
 }
 
+
 int camera_attr_foreach_supported_fps_by_resolution(camera_h camera, int width, int height, camera_attr_supported_fps_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_FOREACH_SUPPORTED_FPS_BY_RESOLUTION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int value = 0;
+
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       LOGD("Enter, handle :%x", pc->remote_handle);
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_FPS_BY_RESOLUTION] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_FPS_BY_RESOLUTION] = user_data;
 
-       muse_camera_msg_send2(api, sock_fd, pc->cb_info, ret, INT, width, INT, height);
+       value = (width << 16) | height;
+       CAMERA_MSG_PARAM_SET(param, INT, value);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
+
 int camera_attr_foreach_supported_stream_flip(camera_h camera, camera_attr_supported_stream_flip_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_FOREACH_SUPPORTED_STREAM_FLIP;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       LOGD("Enter, handle :%x", pc->remote_handle);
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_STREAM_FLIP] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_STREAM_FLIP] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_foreach_supported_stream_rotation(camera_h camera, camera_attr_supported_stream_rotation_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_FOREACH_SUPPORTED_STREAM_ROTATION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       LOGD("Enter, handle :%x", pc->remote_handle);
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_STREAM_ROTATION] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_STREAM_ROTATION] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_set_stream_rotation(camera_h camera , camera_rotation_e rotation)
+int camera_attr_set_stream_rotation(camera_h camera, camera_rotation_e rotation)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_STREAM_ROTATION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_rotation = (int)rotation;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_rotation = (int)rotation;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_rotation);
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_rotation);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_get_stream_rotation(camera_h camera , camera_rotation_e *rotation)
+int camera_attr_get_stream_rotation(camera_h camera, camera_rotation_e *rotation)
 {
-       if (camera == NULL || rotation == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_STREAM_ROTATION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !rotation) {
+               LOGE("NULL pointer %p %p", pc, rotation);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_rotation;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *rotation = (camera_rotation_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_STREAM_ROTATION];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_rotation, pc->cb_info->recv_msg);
-               *rotation = (camera_rotation_e)get_rotation;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_set_stream_flip(camera_h camera , camera_flip_e flip)
+int camera_attr_set_stream_flip(camera_h camera, camera_flip_e flip)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_STREAM_FLIP;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_flip = (int)flip;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_flip = (int)flip;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_flip);
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_flip);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_get_stream_flip(camera_h camera , camera_flip_e *flip)
+int camera_attr_get_stream_flip(camera_h camera, camera_flip_e *flip)
 {
-       if (camera == NULL || flip == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_STREAM_FLIP;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !flip) {
+               LOGE("NULL pointer %p %p", pc, flip);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_flip;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *flip = (camera_flip_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_STREAM_FLIP];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_flip, pc->cb_info->recv_msg);
-               *flip = (camera_flip_e)get_flip;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 int camera_attr_set_hdr_mode(camera_h camera, camera_attr_hdr_mode_e mode)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_HDR_MODE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_mode = (int)mode;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_mode = (int)mode;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_mode);
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_mode);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_get_hdr_mode(camera_h camera, camera_attr_hdr_mode_e *mode)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x) - handle", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-       if (mode == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x) - mode", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_HDR_MODE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !mode) {
+               LOGE("NULL pointer %p %p", pc, mode);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_mode;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *mode = (camera_attr_hdr_mode_e)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_HDR_MODE];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_mode, pc->cb_info->recv_msg);
-               *mode = (camera_attr_hdr_mode_e)get_mode;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 bool camera_attr_is_supported_hdr_capture(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return false;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_IS_SUPPORTED_HDR_CAPTURE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
-       LOGD("ret : 0x%x", ret);
+
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret < 0) {
+               LOGE("error is occurred 0x%x", ret);
+               ret = false;
+       }
+
+       LOGD("ret : %d", ret);
+
        return (bool)ret;
 }
 
@@ -5881,32 +6091,33 @@ int camera_attr_set_hdr_capture_progress_cb(camera_h camera, camera_attr_hdr_pro
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_HDR_CAPTURE_PROGRESS_CB;
-       int sock_fd;
 
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x) - handle", CAMERA_ERROR_INVALID_PARAMETER);
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
+       LOGD("Enter");
 
-       sock_fd = pc->cb_info->fd;
+       if (!camera_attr_is_supported_hdr_capture(camera)) {
+               LOGE("HDR not supported");
+               return CAMERA_ERROR_NOT_SUPPORTED;
+       }
 
-       LOGD("Enter, handle :%x", pc->remote_handle);
+       if (!callback) {
+               LOGE("NULL callback");
+               return CAMERA_ERROR_INVALID_PARAMETER;
+       }
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
        if (ret == CAMERA_ERROR_NONE) {
-               if (callback == NULL) {
-                       LOGE("INVALID_PARAMETER(0x%08x) - callback", CAMERA_ERROR_INVALID_PARAMETER);
-                       return CAMERA_ERROR_INVALID_PARAMETER;
-               }
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_HDR_PROGRESS]);
 
                pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_HDR_PROGRESS] = callback;
                pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_HDR_PROGRESS] = user_data;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_HDR_PROGRESS]);
        }
 
        LOGD("ret : 0x%x", ret);
@@ -5917,567 +6128,541 @@ int camera_attr_set_hdr_capture_progress_cb(camera_h camera, camera_attr_hdr_pro
 
 int camera_attr_unset_hdr_capture_progress_cb(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_UNSET_HDR_CAPTURE_PROGRESS_CB;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       LOGD("Enter, handle :%x", pc->remote_handle);
 
-       pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_HDR_PROGRESS] = (void *)NULL;
-       pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_HDR_PROGRESS] = (void *)NULL;
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               g_mutex_lock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_HDR_PROGRESS]);
+
+               pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_HDR_PROGRESS] = NULL;
+               pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_HDR_PROGRESS] = NULL;
+
+               g_mutex_unlock(&pc->cb_info->user_cb_mutex[MUSE_CAMERA_EVENT_TYPE_HDR_PROGRESS]);
+       }
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_enable_anti_shake(camera_h camera, bool enable)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_ENABLE_ANTI_SHAKE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_enable = (int)enable;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_enable = (int)enable;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_enable);
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_enable);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
-int camera_attr_is_enabled_anti_shake(camera_h camera , bool *enabled)
+int camera_attr_is_enabled_anti_shake(camera_h camera, bool *enabled)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x) - handle", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-       if (enabled == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x) - enabled", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_IS_ENABLED_ANTI_SHAKE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !enabled) {
+               LOGE("NULL pointer %p %p", pc, enabled);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_enabled;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *enabled = (bool)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_ENABLED_ANTI_SHAKE];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_enabled, pc->cb_info->recv_msg);
-               *enabled = (bool)get_enabled;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 bool camera_attr_is_supported_anti_shake(camera_h camera)
 {
-
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return false;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_IS_SUPPORTED_ANTI_SHAKE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
-       LOGD("ret : 0x%x", ret);
-       return ret;
+
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret < 0) {
+               LOGE("error is occurred 0x%x", ret);
+               ret = false;
+       }
+
+       LOGD("ret : %d", ret);
+
+       return (bool)ret;
 }
 
 
 int camera_attr_enable_video_stabilization(camera_h camera, bool enable)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_ENABLE_VIDEO_STABILIZATION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_enable = (int)enable;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_enable = (int)enable;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_enable);
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_enable);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_is_enabled_video_stabilization(camera_h camera, bool *enabled)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x) - handle", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-       if (enabled == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x) - enabled", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_IS_ENABLED_VIDEO_STABILIZATION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !enabled) {
+               LOGE("NULL pointer %p %p", pc, enabled);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_enabled;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *enabled = (bool)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_ENABLED_VIDEO_STABILIZATION];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_enabled, pc->cb_info->recv_msg);
-               *enabled = (bool)get_enabled;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 bool camera_attr_is_supported_video_stabilization(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return false;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_IS_SUPPORTED_VIDEO_STABILIZATION;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
-       LOGD("ret : 0x%x", ret);
-       return ret;
+
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret < 0) {
+               LOGE("error is occurred 0x%x", ret);
+               ret = false;
+       }
+
+       LOGD("ret : %d", ret);
+
+       return (bool)ret;
 }
 
 
 int camera_attr_enable_auto_contrast(camera_h camera, bool enable)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_ENABLE_AUTO_CONTRAST;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_enable = (int)enable;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_enable = (int)enable;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_enable);
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_enable);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_is_enabled_auto_contrast(camera_h camera, bool *enabled)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x) - handle", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-       if (enabled == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x) - enabled", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_IS_ENABLED_AUTO_CONTRAST;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !enabled) {
+               LOGE("NULL pointer %p %p", pc, enabled);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int get_enabled;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *enabled = (bool)pc->cb_info->get_int[MUSE_CAMERA_GET_INT_ENABLED_AUTO_CONTRAST];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_enabled, pc->cb_info->recv_msg);
-               *enabled = (bool)get_enabled;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 bool camera_attr_is_supported_auto_contrast(camera_h camera)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return false;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_IS_SUPPORTED_AUTO_CONTRAST;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
-       LOGD("ret : 0x%x", ret);
-       return ret;
+
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret < 0) {
+               LOGE("error is occurred 0x%x", ret);
+               ret = false;
+       }
+
+       LOGD("ret : %d", ret);
+
+       return (bool)ret;
 }
 
 
 int camera_attr_disable_shutter_sound(camera_h camera, bool disable)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
        int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_DISABLE_SHUTTER_SOUND;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_msg_param param;
+       int set_disable = (int)disable;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       int set_disable = (int)disable;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_disable);
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_disable);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_set_pan(camera_h camera, camera_attr_ptz_move_type_e move_type, int pan_step)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
+       int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_PAN;
+       camera_msg_param param0;
+       camera_msg_param param1;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       int ret = CAMERA_ERROR_NONE;
-       int sock_fd = pc->cb_info->fd;
-       int set_move_type = (int)move_type;
-       int set_pan_step = pan_step;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_PAN;
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param0, INT, move_type);
+       CAMERA_MSG_PARAM_SET(param1, INT, pan_step);
+
+       _camera_msg_send_param2_int(api, pc->cb_info, &ret,
+               &param0, &param1, CAMERA_CB_TIMEOUT);
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send2(api, sock_fd, pc->cb_info, ret, INT, set_move_type, INT, set_pan_step);
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_get_pan(camera_h camera, int *pan_step)
 {
-       if (camera == NULL || pan_step == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
+       int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_PAN;
+
+       if (!pc || !pc->cb_info || !pan_step) {
+               LOGE("NULL pointer %p %p", pc, pan_step);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       int ret = CAMERA_ERROR_NONE;
-       int sock_fd = pc->cb_info->fd;
-       int get_pan_step;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_PAN;
+       LOGD("Enter");
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *pan_step = pc->cb_info->get_int[MUSE_CAMERA_GET_INT_PAN];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_pan_step, pc->cb_info->recv_msg);
-               *pan_step = get_pan_step;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_get_pan_range(camera_h camera, int *min, int *max)
 {
-       if (camera == NULL || min == NULL || max == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
+       int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_PAN_RANGE;
+
+       if (!pc || !pc->cb_info || !min || !max) {
+               LOGE("NULL pointer %p %p %p", pc, min, max);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       int ret = CAMERA_ERROR_NONE;
-       int sock_fd = pc->cb_info->fd;
-       int get_min;
-       int get_max;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_PAN_RANGE;
+       LOGD("Enter");
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
        if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_min, pc->cb_info->recv_msg);
-               muse_camera_msg_get(get_max, pc->cb_info->recv_msg);
-               *min = get_min;
-               *max = get_max;
+               *min = pc->cb_info->get_int_pair[MUSE_CAMERA_GET_INT_PAIR_PAN_RANGE][0];
+               *max = pc->cb_info->get_int_pair[MUSE_CAMERA_GET_INT_PAIR_PAN_RANGE][1];
        }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_set_tilt(camera_h camera, camera_attr_ptz_move_type_e move_type, int tilt_step)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
+       int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_TILT;
+       camera_msg_param param0;
+       camera_msg_param param1;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       int ret = CAMERA_ERROR_NONE;
-       int sock_fd = pc->cb_info->fd;
-       int set_move_type = (int)move_type;
-       int set_tilt_step = tilt_step;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_TILT;
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param0, INT, move_type);
+       CAMERA_MSG_PARAM_SET(param1, INT, tilt_step);
+
+       _camera_msg_send_param2_int(api, pc->cb_info, &ret,
+               &param0, &param1, CAMERA_CB_TIMEOUT);
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send2(api, sock_fd, pc->cb_info, ret, INT, set_move_type, INT, set_tilt_step);
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_get_tilt(camera_h camera, int *tilt_step)
 {
-       if (camera == NULL || tilt_step == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
+       int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_TILT;
+
+       if (!pc || !pc->cb_info || !tilt_step) {
+               LOGE("NULL pointer %p %p", pc, tilt_step);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       int ret = CAMERA_ERROR_NONE;
-       int sock_fd = pc->cb_info->fd;
-       int get_tilt_step;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_TILT;
+       LOGD("Enter");
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE)
+               *tilt_step = pc->cb_info->get_int[MUSE_CAMERA_GET_INT_TILT];
 
-       if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_tilt_step, pc->cb_info->recv_msg);
-               *tilt_step = get_tilt_step;
-       }
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_get_tilt_range(camera_h camera, int *min, int *max)
 {
-       if (camera == NULL || min == NULL || max == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
+       int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_TILT_RANGE;
+
+       if (!pc || !pc->cb_info || !min || !max) {
+               LOGE("NULL pointer %p %p %p", pc, min, max);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       int ret = CAMERA_ERROR_NONE;
-       int sock_fd = pc->cb_info->fd;
-       int get_min;
-       int get_max;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_GET_TILT_RANGE;
+       LOGD("Enter");
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
 
        if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get(get_min, pc->cb_info->recv_msg);
-               muse_camera_msg_get(get_max, pc->cb_info->recv_msg);
-               *min = get_min;
-               *max = get_max;
+               *min = pc->cb_info->get_int_pair[MUSE_CAMERA_GET_INT_PAIR_TILT_RANGE][0];
+               *max = pc->cb_info->get_int_pair[MUSE_CAMERA_GET_INT_PAIR_TILT_RANGE][1];
        }
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_set_ptz_type(camera_h camera, camera_attr_ptz_type_e ptz_type)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
+       int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_PTZ_TYPE;
+       camera_msg_param param;
+       int set_ptz_type = (int)ptz_type;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       int ret = CAMERA_ERROR_NONE;
-       int sock_fd = pc->cb_info->fd;
-       int set_ptz_type = (int)ptz_type;
-       muse_camera_api_e api = MUSE_CAMERA_API_ATTR_SET_PTZ_TYPE;
+       LOGD("Enter");
+
+       CAMERA_MSG_PARAM_SET(param, INT, set_ptz_type);
+
+       _camera_msg_send_param1(api, pc->cb_info, &ret, &param, CAMERA_CB_TIMEOUT);
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
-       muse_camera_msg_send1(api, sock_fd, pc->cb_info, ret, INT, set_ptz_type);
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_foreach_supported_ptz_type(camera_h camera, camera_attr_supported_ptz_type_cb foreach_cb, void *user_data)
 {
-       if (camera == NULL || foreach_cb == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
        int ret = CAMERA_ERROR_NONE;
-
        camera_cli_s *pc = (camera_cli_s *)camera;
        muse_camera_api_e api = MUSE_CAMERA_API_ATTR_FOREACH_SUPPORTED_PTZ_TYPE;
-       int sock_fd;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+
+       if (!pc || !pc->cb_info || !foreach_cb) {
+               LOGE("NULL pointer %p %p", pc, foreach_cb);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
-       sock_fd = pc->cb_info->fd;
-       LOGD("Enter, handle :%x", pc->remote_handle);
+
+       LOGD("Enter");
+
        pc->cb_info->user_cb[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_PTZ_TYPE] = foreach_cb;
        pc->cb_info->user_data[MUSE_CAMERA_EVENT_TYPE_FOREACH_SUPPORTED_PTZ_TYPE] = user_data;
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
        LOGD("ret : 0x%x", ret);
+
        return ret;
 }
 
 
 int camera_attr_set_display_roi_area(camera_h camera, int x, int y, int width, int height)
 {
-       if (camera == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
-       }
-
+       int ret = CAMERA_ERROR_NONE;
        camera_cli_s *pc = (camera_cli_s *)camera;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       muse_camera_api_e api = MUSE_CAMERA_API_SET_DISPLAY_ROI_AREA;
+       int set_display_roi_area[4] = {x, y, width, height};
+       char *msg = NULL;
+       int length = 0;
+       int send_ret = 0;
+
+       if (!pc || !pc->cb_info) {
+               LOGE("NULL handle");
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       int ret = CAMERA_ERROR_NONE;
-       int sock_fd = pc->cb_info->fd;
-       int set_display_roi_area[4] = {x, y, width, height};
-       muse_camera_api_e api = MUSE_CAMERA_API_SET_DISPLAY_ROI_AREA;
-
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
+       LOGD("Enter");
 
-#ifdef TIZEN_FEATURE_EVAS_RENDERER
        if (CHECK_PREVIEW_CB(pc->cb_info, PREVIEW_CB_TYPE_EVAS)) {
-               g_mutex_lock(&pc->cb_info->evas_mutex);
-
-               ret = mm_evas_renderer_set_roi_area(pc->cb_info->evas_info, x, y, width, height);
-
-               g_mutex_unlock(&pc->cb_info->evas_mutex);
-
+               ret = mm_display_interface_evas_set_roi_area(pc->cb_info->dp_interface, x, y, width, height);
                if (ret != MM_ERROR_NONE) {
                        LOGE("mm_evas_renderer_set_roi_area error 0x%x", ret);
                        return CAMERA_ERROR_INVALID_OPERATION;
                }
        }
-#endif /* TIZEN_FEATURE_EVAS_RENDERER */
 
-       muse_camera_msg_send_array(api, sock_fd, pc->cb_info, ret,
-               set_display_roi_area, sizeof(set_display_roi_area), sizeof(int));
+       length = sizeof(set_display_roi_area) / sizeof(int) + \
+               (sizeof(set_display_roi_area) % sizeof(int) ? 1 : 0);
+
+       msg = muse_core_msg_new(api,
+               MUSE_TYPE_ARRAY, "set_display_roi_area", length, (int *)set_display_roi_area,
+               NULL);
+       if (!msg) {
+               LOGE("msg creation failed: api %d", api);
+               return CAMERA_ERROR_OUT_OF_MEMORY;
+       }
+
+       if (pc->cb_info->is_server_connected) {
+               __camera_update_api_waiting(pc->cb_info, api, 1);
+
+               g_mutex_lock(&pc->cb_info->fd_lock);
+               send_ret = muse_core_msg_send(pc->cb_info->fd, msg);
+               g_mutex_unlock(&pc->cb_info->fd_lock);
+       }
+
+       if (send_ret < 0) {
+               LOGE("message send failed");
+               ret = CAMERA_ERROR_INVALID_OPERATION;
+       } else {
+               ret = _camera_client_wait_for_cb_return(api, pc->cb_info, CAMERA_CB_TIMEOUT);
+       }
+
+       __camera_update_api_waiting(pc->cb_info, api, -1);
+
+       muse_core_msg_free(msg);
 
        LOGD("ret : 0x%x", ret);
 
@@ -6487,38 +6672,202 @@ int camera_attr_set_display_roi_area(camera_h camera, int x, int y, int width, i
 
 int camera_attr_get_display_roi_area(camera_h camera, int *x, int *y, int *width, int *height)
 {
-       if (camera == NULL || x == NULL || y == NULL || width == NULL || height == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
+       camera_cli_s *pc = (camera_cli_s *)camera;
+       int ret = CAMERA_ERROR_NONE;
+       muse_camera_api_e api = MUSE_CAMERA_API_GET_DISPLAY_ROI_AREA;
+
+       if (!pc || !pc->cb_info || !x || !y || !width || !height) {
+               LOGE("NULL pointer %p %p %p %p %p", pc, x, y, width, height);
                return CAMERA_ERROR_INVALID_PARAMETER;
        }
 
-       camera_cli_s *pc = (camera_cli_s *)camera;
-       if (pc->cb_info == NULL) {
-               LOGE("INVALID_PARAMETER(0x%08x)", CAMERA_ERROR_INVALID_PARAMETER);
-               return CAMERA_ERROR_INVALID_PARAMETER;
+       LOGD("Enter");
+
+       _camera_msg_send(api, NULL, pc->cb_info, &ret, CAMERA_CB_TIMEOUT);
+
+       if (ret == CAMERA_ERROR_NONE) {
+               *x = pc->cb_info->get_display_roi_area[0];
+               *y = pc->cb_info->get_display_roi_area[1];
+               *width = pc->cb_info->get_display_roi_area[2];
+               *height = pc->cb_info->get_display_roi_area[3];
        }
 
+       LOGD("ret : 0x%x", ret);
+
+       return ret;
+}
+
+
+int camera_get_device_state(camera_device_e device, camera_device_state_e *state)
+{
        int ret = CAMERA_ERROR_NONE;
-       int sock_fd = pc->cb_info->fd;
-       int get_display_roi_area[4] = {0,};
-       muse_camera_api_e api = MUSE_CAMERA_API_GET_DISPLAY_ROI_AREA;
+       int get_device_state = 0;
 
-       LOGD("Enter, remote_handle : %x", pc->remote_handle);
+       if (!state) {
+               LOGE("NULL pointer");
+               return CAMERA_ERROR_INVALID_PARAMETER;
+       }
 
-       muse_camera_msg_send(api, sock_fd, pc->cb_info, ret);
+       ret = _camera_independent_request(MUSE_CAMERA_API_GET_DEVICE_STATE,
+               (int)device, "get_device_state", &get_device_state);
 
        if (ret == CAMERA_ERROR_NONE) {
-               muse_camera_msg_get_array(get_display_roi_area, pc->cb_info->recv_msg);
+               *state = (camera_device_state_e)get_device_state;
+               LOGD("device state %d", *state);
+       } else {
+               LOGE("failed 0x%x", ret);
+       }
 
-               *x = get_display_roi_area[0];
-               *y = get_display_roi_area[1];
-               *width = get_display_roi_area[2];
-               *height = get_display_roi_area[3];
+       return ret;
+}
 
-               LOGD("ret : 0x%x", ret);
-       } else {
-               LOGE("Returned value is not valid : 0x%x", ret);
+
+int camera_add_device_state_changed_cb(camera_device_state_changed_cb callback, void *user_data, int *cb_id)
+{
+       int ret = CAMERA_ERROR_NONE;
+       camera_device_state_e state = CAMERA_DEVICE_STATE_NULL;
+       camera_cb_info *info = NULL;
+
+       if (!callback || !cb_id) {
+               LOGE("invalid pointer %p %p", callback, cb_id);
+               return CAMERA_ERROR_INVALID_PARAMETER;
+       }
+
+       /* check camera support */
+       ret = camera_get_device_state(CAMERA_DEVICE_CAMERA0, &state);
+       if (ret != CAMERA_ERROR_NONE) {
+               LOGE("get device state failed");
+               return ret;
+       }
+
+       g_mutex_lock(&g_cam_dev_state_changed_cb_lock);
+
+       info = g_new0(camera_cb_info, 1);
+       if (!info) {
+               LOGE("info failed");
+               ret = CAMERA_ERROR_OUT_OF_MEMORY;
+               goto _DONE;
+       }
+
+       info->id = ++g_cam_dev_state_changed_cb_id;
+       info->callback = (void *)callback;
+       info->user_data = user_data;
+
+       *cb_id = info->id;
+
+       /* subscribe dbus signal for camera state change */
+       if (!g_cam_dev_state_changed_cb_conn) {
+               g_cam_dev_state_changed_cb_conn = g_bus_get_sync(G_BUS_TYPE_SYSTEM, NULL, NULL);
+               if (!g_cam_dev_state_changed_cb_conn) {
+                       LOGE("failed to get gdbus connection");
+                       ret = CAMERA_ERROR_INVALID_OPERATION;
+                       goto _DONE;
+               }
+
+               LOGD("subscribe signal %s - %s - %s",
+                       MM_CAMCORDER_DBUS_OBJECT,
+                       MM_CAMCORDER_DBUS_INTERFACE_CAMERA,
+                       MM_CAMCORDER_DBUS_SIGNAL_STATE_CHANGED);
+
+               g_cam_dev_state_changed_cb_subscribe_id = g_dbus_connection_signal_subscribe(g_cam_dev_state_changed_cb_conn,
+                       NULL, MM_CAMCORDER_DBUS_INTERFACE_CAMERA, MM_CAMCORDER_DBUS_SIGNAL_STATE_CHANGED, MM_CAMCORDER_DBUS_OBJECT, NULL,
+                       G_DBUS_SIGNAL_FLAGS_NONE, (GDBusSignalCallback)__camera_device_state_changed_cb, NULL, NULL);
+               if (!g_cam_dev_state_changed_cb_subscribe_id) {
+                       LOGE("failed to get gdbus connection");
+                       ret = CAMERA_ERROR_INVALID_OPERATION;
+                       goto _DONE;
+               }
+
+               LOGD("signal subscribe id %u", g_cam_dev_state_changed_cb_subscribe_id);
+       }
+
+       g_cam_dev_state_changed_cb_list = g_list_prepend(g_cam_dev_state_changed_cb_list, (gpointer)info);
+
+       LOGD("callback id %d", info->id);
+
+_DONE:
+       if (ret != CAMERA_ERROR_NONE) {
+               if (info) {
+                       g_free(info);
+                       info = NULL;
+               }
+
+               if (g_cam_dev_state_changed_cb_conn) {
+                       g_object_unref(g_cam_dev_state_changed_cb_conn);
+                       g_cam_dev_state_changed_cb_conn = NULL;
+               }
+       }
+
+       g_mutex_unlock(&g_cam_dev_state_changed_cb_lock);
+
+       return ret;
+}
+
+
+int camera_remove_device_state_changed_cb(int cb_id)
+{
+       int ret = CAMERA_ERROR_NONE;
+       camera_device_state_e state = CAMERA_DEVICE_STATE_NULL;
+       GList *tmp_list = NULL;
+       camera_cb_info *info = NULL;
+
+       /* check camera support */
+       ret = camera_get_device_state(CAMERA_DEVICE_CAMERA0, &state);
+       if (ret != CAMERA_ERROR_NONE) {
+               LOGE("get device state failed");
+               return ret;
+       }
+
+       g_mutex_lock(&g_cam_dev_state_changed_cb_lock);
+
+       if (!g_cam_dev_state_changed_cb_list) {
+               LOGE("there is no callback info");
+               ret = CAMERA_ERROR_INVALID_OPERATION;
+               goto _DONE;
        }
 
+       tmp_list = g_cam_dev_state_changed_cb_list;
+
+       do {
+               info = tmp_list->data;
+               tmp_list = tmp_list->next;
+
+               if (!info) {
+                       LOGW("NULL info");
+                       continue;
+               }
+
+               if (info->id == cb_id) {
+                       g_cam_dev_state_changed_cb_list = g_list_remove(g_cam_dev_state_changed_cb_list, info);
+
+                       g_free(info);
+                       info = NULL;
+
+                       if (!g_cam_dev_state_changed_cb_list) {
+                               /* no remained callback */
+                               if (g_cam_dev_state_changed_cb_conn) {
+                                       /* unsubscribe signal */
+                                       g_dbus_connection_signal_unsubscribe(g_cam_dev_state_changed_cb_conn, g_cam_dev_state_changed_cb_subscribe_id);
+                                       g_cam_dev_state_changed_cb_subscribe_id = 0;
+
+                                       /* unref connection */
+                                       g_object_unref(g_cam_dev_state_changed_cb_conn);
+                                       g_cam_dev_state_changed_cb_conn = NULL;
+                               }
+                       }
+
+                       LOGD("id %d callback removed", cb_id);
+                       ret = CAMERA_ERROR_NONE;
+
+                       goto _DONE;
+               }
+       } while (tmp_list);
+
+       LOGE("id %d callback not found", cb_id);
+       ret = CAMERA_ERROR_INVALID_PARAMETER;
+
+_DONE:
+       g_mutex_unlock(&g_cam_dev_state_changed_cb_lock);
+
        return ret;
 }