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 */ 56