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/platform_data/dma-imx.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#define IMX_SAI_DMABUF_SIZE (64 * 1024) 21#define IMX_SPDIF_DMABUF_SIZE (64 * 1024) 22#define IMX_ESAI_DMABUF_SIZE (256 * 1024) 23 24static inline void 25imx_pcm_dma_params_init_data(struct imx_dma_data *dma_data, 26 int dma, enum sdma_peripheral_type peripheral_type) 27{ 28 dma_data->dma_request = dma; 29 dma_data->priority = DMA_PRIO_HIGH; 30 dma_data->peripheral_type = peripheral_type; 31} 32 33struct imx_pcm_fiq_params { 34 int irq; 35 void __iomem *base; 36 37 /* Pointer to original ssi driver to setup tx rx sizes */ 38 struct snd_dmaengine_dai_dma_data *dma_params_rx; 39 struct snd_dmaengine_dai_dma_data *dma_params_tx; 40}; 41 42#if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_DMA) 43int imx_pcm_dma_init(struct platform_device *pdev, size_t size); 44#else 45static inline int imx_pcm_dma_init(struct platform_device *pdev, size_t size) 46{ 47 return -ENODEV; 48} 49#endif 50 51#if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_FIQ) 52int imx_pcm_fiq_init(struct platform_device *pdev, 53 struct imx_pcm_fiq_params *params); 54void imx_pcm_fiq_exit(struct platform_device *pdev); 55#else 56static inline int imx_pcm_fiq_init(struct platform_device *pdev, 57 struct imx_pcm_fiq_params *params) 58{ 59 return -ENODEV; 60} 61 62static inline void imx_pcm_fiq_exit(struct platform_device *pdev) 63{ 64} 65#endif 66 67#endif /* _IMX_PCM_H */ 68