1/* SPDX-License-Identifier: GPL-2.0+ */
 2/*
 3 * Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de>
 4 *
 5 * This code is based on code copyrighted by Freescale,
 6 * Liam Girdwood, Javier Martin and probably others.
 
 
 
 
 
 7 */
 8
 9#ifndef _IMX_PCM_H
10#define _IMX_PCM_H
11
12#include <linux/dma/imx-dma.h>
13
14/*
15 * Do not change this as the FIQ handler depends on this size
16 */
17#define IMX_SSI_DMABUF_SIZE	(64 * 1024)
18
19#define IMX_DEFAULT_DMABUF_SIZE	(64 * 1024)
 
 
 
 
 
 
 
 
 
 
 
 
20
21struct imx_pcm_fiq_params {
22	int irq;
23	void __iomem *base;
24
25	/* Pointer to original ssi driver to setup tx rx sizes */
26	struct snd_dmaengine_dai_dma_data *dma_params_rx;
27	struct snd_dmaengine_dai_dma_data *dma_params_tx;
28};
29
30#if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_DMA)
31int imx_pcm_dma_init(struct platform_device *pdev);
32#else
33static inline int imx_pcm_dma_init(struct platform_device *pdev)
34{
35	return -ENODEV;
36}
37#endif
38
39#if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_FIQ)
40int imx_pcm_fiq_init(struct platform_device *pdev,
41		struct imx_pcm_fiq_params *params);
42void imx_pcm_fiq_exit(struct platform_device *pdev);
43#else
44static inline int imx_pcm_fiq_init(struct platform_device *pdev,
45		struct imx_pcm_fiq_params *params)
46{
47	return -ENODEV;
48}
49
50static inline void imx_pcm_fiq_exit(struct platform_device *pdev)
51{
52}
53#endif
54
55#endif /* _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#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
23#define IMX_DEFAULT_DMABUF_SIZE	(64 * 1024)
24#define IMX_SAI_DMABUF_SIZE	(64 * 1024)
25#define IMX_SPDIF_DMABUF_SIZE	(64 * 1024)
26#define IMX_ESAI_DMABUF_SIZE	(256 * 1024)
27
28static inline void
29imx_pcm_dma_params_init_data(struct imx_dma_data *dma_data,
30	int dma, enum sdma_peripheral_type peripheral_type)
31{
32	dma_data->dma_request = dma;
33	dma_data->priority = DMA_PRIO_HIGH;
34	dma_data->peripheral_type = peripheral_type;
35}
36
37struct imx_pcm_fiq_params {
38	int irq;
39	void __iomem *base;
40
41	/* Pointer to original ssi driver to setup tx rx sizes */
42	struct snd_dmaengine_dai_dma_data *dma_params_rx;
43	struct snd_dmaengine_dai_dma_data *dma_params_tx;
44};
45
46#if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_DMA)
47int imx_pcm_dma_init(struct platform_device *pdev, size_t size);
48#else
49static inline int imx_pcm_dma_init(struct platform_device *pdev, size_t size)
50{
51	return -ENODEV;
52}
53#endif
54
55#if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_FIQ)
56int imx_pcm_fiq_init(struct platform_device *pdev,
57		struct imx_pcm_fiq_params *params);
58void imx_pcm_fiq_exit(struct platform_device *pdev);
59#else
60static inline int imx_pcm_fiq_init(struct platform_device *pdev,
61		struct imx_pcm_fiq_params *params)
62{
63	return -ENODEV;
64}
65
66static inline void imx_pcm_fiq_exit(struct platform_device *pdev)
67{
68}
69#endif
70
71#endif /* _IMX_PCM_H */