sound/soc/samsung/dma.h

   1 /*
   2  *  dma.h --
   3  *
   4  *  This program is free software; you can redistribute  it and/or modify it
   5  *  under  the terms of  the GNU General  Public License as published by the
   6  *  Free Software Foundation;  either version 2 of the  License, or (at your
   7  *  option) any later version.
   8  *
   9  *  ALSA PCM interface for the Samsung SoC
  10  */
  11
  12 #ifndef _S3C_AUDIO_H
  13 #define _S3C_AUDIO_H
  14
  15 #include <sound/dmaengine_pcm.h>
  16 #include <linux/dmaengine.h>
  17
  18 struct s3c_dma_params {
  19         void *slave;                            /* Channel ID */
  20         dma_addr_t dma_addr;
  21         int dma_size;                   /* Size of the DMA transfer */
  22         char *ch_name;
  23         struct snd_dmaengine_dai_dma_data dma_data;
  24 };
  25
  26 void samsung_asoc_init_dma_data(struct snd_soc_dai *dai,
  27                                 struct s3c_dma_params *playback,
  28                                 struct s3c_dma_params *capture);
  29 int samsung_asoc_dma_platform_register(struct device *dev,
  30                                        dma_filter_fn fn);
  31
  32 #endif