1 /* 2 * Copyright (C) 2022 Rockchip Electronics Co., Ltd. 3 * Authors: 4 * Cerf Yu <cerf.yu@rock-chips.com> 5 * 6 * Licensed under the Apache License, Version 2.0 (the "License"); 7 * you may not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 #ifndef __DMA_ALLOC_H__ 20 #define __DMA_ALLOC_H__ 21 22 int dma_sync_device_to_cpu(int fd); 23 int dma_sync_cpu_to_device(int fd); 24 25 int dma_buf_alloc(int width, int height, int format, int *fd, void **va); 26 void dma_buf_free(int width, int height, int format, int *fd, void *va); 27 28 #endif 29