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/*
* 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)
struct imx_pcm_dma_params {
unsigned long dma_addr;
int burstsize;
struct imx_dma_data dma_data;
};
static inline void
imx_pcm_dma_params_init_data(struct imx_pcm_dma_params *params,
int dma, bool shared)
{
params->dma_data.dma_request = dma;
params->dma_data.priority = DMA_PRIO_HIGH;
if (shared)
params->dma_data.peripheral_type = IMX_DMATYPE_SSI_SP;
else
params->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);
#else
static inline int imx_pcm_dma_init(struct platform_device *pdev)
{
return -ENODEV;
}
#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 */
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