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#include <linux/platform_data/dma-imx.h>
17
18/*
19 * Do not change this as the FIQ handler depends on this size
20 */
21#define IMX_SSI_DMABUF_SIZE	(64 * 1024)
22
23static inline void
24imx_pcm_dma_params_init_data(struct imx_dma_data *dma_data,
25	int dma, enum sdma_peripheral_type peripheral_type)
26{
27	dma_data->dma_request = dma;
28	dma_data->priority = DMA_PRIO_HIGH;
29	dma_data->peripheral_type = peripheral_type;
30}
31
32struct imx_pcm_fiq_params {
33	int irq;
34	void __iomem *base;
35
36	/* Pointer to original ssi driver to setup tx rx sizes */
37	struct snd_dmaengine_dai_dma_data *dma_params_rx;
38	struct snd_dmaengine_dai_dma_data *dma_params_tx;
39};
40
41#if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_DMA)
42int imx_pcm_dma_init(struct platform_device *pdev);
43#else
44static inline int imx_pcm_dma_init(struct platform_device *pdev)
45{
46	return -ENODEV;
47}
48#endif
49
50#if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_FIQ)
51int imx_pcm_fiq_init(struct platform_device *pdev,
52		struct imx_pcm_fiq_params *params);
53void imx_pcm_fiq_exit(struct platform_device *pdev);
54#else
55static inline int imx_pcm_fiq_init(struct platform_device *pdev,
56		struct imx_pcm_fiq_params *params)
57{
58	return -ENODEV;
59}
60
61static inline void imx_pcm_fiq_exit(struct platform_device *pdev)
62{
63}
64#endif
65
66#endif /* _IMX_PCM_H */
67