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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) 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 */ |