include/linux/dma/xilinx_dma.h

   1 /*
   2  * Xilinx DMA Engine drivers support header file
   3  *
   4  * Copyright (C) 2010-2014 Xilinx, Inc. All rights reserved.
   5  *
   6  * This is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  */
  11
  12 #ifndef __DMA_XILINX_DMA_H
  13 #define __DMA_XILINX_DMA_H
  14
  15 #include <linux/dma-mapping.h>
  16 #include <linux/dmaengine.h>
  17
  18 /**
  19  * struct xilinx_vdma_config - VDMA Configuration structure
  20  * @frm_dly: Frame delay
  21  * @gen_lock: Whether in gen-lock mode
  22  * @master: Master that it syncs to
  23  * @frm_cnt_en: Enable frame count enable
  24  * @park: Whether wants to park
  25  * @park_frm: Frame to park on
  26  * @coalesc: Interrupt coalescing threshold
  27  * @delay: Delay counter
  28  * @reset: Reset Channel
  29  * @ext_fsync: External Frame Sync source
  30  */
  31 struct xilinx_vdma_config {
  32         int frm_dly;
  33         int gen_lock;
  34         int master;
  35         int frm_cnt_en;
  36         int park;
  37         int park_frm;
  38         int coalesc;
  39         int delay;
  40         int reset;
  41         int ext_fsync;
  42 };
  43
  44 int xilinx_vdma_channel_set_config(struct dma_chan *dchan,
  45                                         struct xilinx_vdma_config *cfg);
  46
  47 #endif