sound/soc/fsl/imx-pcm.h

   1 /*
   2  * Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de>
   3  *
   4  * This code is based on code copyrighted by Freescale,
   5  * Liam Girdwood, Javier Martin and probably others.
   6  *
   7  * This program is free software; you can redistribute  it and/or modify it
   8  * under  the terms of  the GNU General  Public License as published by the
   9  * Free Software Foundation;  either version 2 of the  License, or (at your
  10  * option) any later version.
  11  */
  12
  13 #ifndef _IMX_PCM_H
  14 #define _IMX_PCM_H
  15
  16 /*
  17  * Do not change this as the FIQ handler depends on this size
  18  */
  19 #define IMX_SSI_DMABUF_SIZE     (64 * 1024)
  20
  21 struct imx_pcm_dma_params {
  22         int dma;
  23         unsigned long dma_addr;
  24         int burstsize;
  25         bool shared_peripheral; /* The peripheral is on SPBA bus */
  26 };
  27
  28 int snd_imx_pcm_mmap(struct snd_pcm_substream *substream,
  29                      struct vm_area_struct *vma);
  30 int imx_pcm_new(struct snd_soc_pcm_runtime *rtd);
  31 void imx_pcm_free(struct snd_pcm *pcm);
  32
  33 #endif /* _IMX_PCM_H */