text: /*
   * Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de>
   *
   * This code is based on code copyrighted by Freescale,
   * Liam Girdwood, Javier Martin and probably others.
   *
   * This program is free software; you can redistribute  it and/or modify it
   * under  the terms of  the GNU General  Public License as published by the
   * Free Software Foundation;  either version 2 of the  License, or (at your
   * option) any later version.
   */
  
  #ifndef _IMX_PCM_H
  #define _IMX_PCM_H
  
  #include <linux/platform_data/dma-imx.h>
  
  /*
   * Do not change this as the FIQ handler depends on this size
   */
  #define IMX_SSI_DMABUF_SIZE	(64 * 1024)
  
  static inline void
  imx_pcm_dma_params_init_data(struct imx_dma_data *dma_data,
  	int dma, bool shared)
  {
  	dma_data->dma_request = dma;
  	dma_data->priority = DMA_PRIO_HIGH;
  	if (shared)
  		dma_data->peripheral_type = IMX_DMATYPE_SSI_SP;
  	else
  		dma_data->peripheral_type = IMX_DMATYPE_SSI;
  }
  
  int snd_imx_pcm_mmap(struct snd_pcm_substream *substream,
  		     struct vm_area_struct *vma);
  int imx_pcm_new(struct snd_soc_pcm_runtime *rtd);
  void imx_pcm_free(struct snd_pcm *pcm);
  
  #ifdef CONFIG_SND_SOC_IMX_PCM_DMA
  int imx_pcm_dma_init(struct platform_device *pdev);
  void imx_pcm_dma_exit(struct platform_device *pdev);
  #else
  static inline int imx_pcm_dma_init(struct platform_device *pdev)
  {
  	return -ENODEV;
  }
  
  static inline void imx_pcm_dma_exit(struct platform_device *pdev)
  {
  }
  #endif
  
  #ifdef CONFIG_SND_SOC_IMX_PCM_FIQ
  int imx_pcm_fiq_init(struct platform_device *pdev);
  #else
  static inline int imx_pcm_fiq_init(struct platform_device *pdev)
  {
  	return -ENODEV;
  }
  #endif
  
  #endif /* _IMX_PCM_H */
  