linux/dma/xilinx_dma.h

0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  * Xilinx DMA Engine drivers support header file
0004  *
0005  * Copyright (C) 2010-2014 Xilinx, Inc. All rights reserved.
0006  */
0007
0008 #ifndef __DMA_XILINX_DMA_H
0009 #define __DMA_XILINX_DMA_H
0010
0011 #include <linux/dma-mapping.h>
0012 #include <linux/dmaengine.h>
0013
0014 /**
0015  * struct xilinx_vdma_config - VDMA Configuration structure
0016  * @frm_dly: Frame delay
0017  * @gen_lock: Whether in gen-lock mode
0018  * @master: Master that it syncs to
0019  * @frm_cnt_en: Enable frame count enable
0020  * @park: Whether wants to park
0021  * @park_frm: Frame to park on
0022  * @coalesc: Interrupt coalescing threshold
0023  * @delay: Delay counter
0024  * @reset: Reset Channel
0025  * @ext_fsync: External Frame Sync source
0026  * @vflip_en:  Vertical Flip enable
0027  */
0028 struct xilinx_vdma_config {
0029     int frm_dly;
0030     int gen_lock;
0031     int master;
0032     int frm_cnt_en;
0033     int park;
0034     int park_frm;
0035     int coalesc;
0036     int delay;
0037     int reset;
0038     int ext_fsync;
0039     bool vflip_en;
0040 };
0041
0042 int xilinx_vdma_channel_set_config(struct dma_chan *dchan,
0043                     struct xilinx_vdma_config *cfg);
0044
0045 #endif