162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0+ */ 262306a36Sopenharmony_ci/* 362306a36Sopenharmony_ci * Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de> 462306a36Sopenharmony_ci * 562306a36Sopenharmony_ci * This code is based on code copyrighted by Freescale, 662306a36Sopenharmony_ci * Liam Girdwood, Javier Martin and probably others. 762306a36Sopenharmony_ci */ 862306a36Sopenharmony_ci 962306a36Sopenharmony_ci#ifndef _IMX_PCM_H 1062306a36Sopenharmony_ci#define _IMX_PCM_H 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ci#include <linux/dma/imx-dma.h> 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ci/* 1562306a36Sopenharmony_ci * Do not change this as the FIQ handler depends on this size 1662306a36Sopenharmony_ci */ 1762306a36Sopenharmony_ci#define IMX_SSI_DMABUF_SIZE (64 * 1024) 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_ci#define IMX_DEFAULT_DMABUF_SIZE (64 * 1024) 2062306a36Sopenharmony_ci 2162306a36Sopenharmony_cistruct imx_pcm_fiq_params { 2262306a36Sopenharmony_ci int irq; 2362306a36Sopenharmony_ci void __iomem *base; 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci /* Pointer to original ssi driver to setup tx rx sizes */ 2662306a36Sopenharmony_ci struct snd_dmaengine_dai_dma_data *dma_params_rx; 2762306a36Sopenharmony_ci struct snd_dmaengine_dai_dma_data *dma_params_tx; 2862306a36Sopenharmony_ci}; 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ci#if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_DMA) 3162306a36Sopenharmony_ciint imx_pcm_dma_init(struct platform_device *pdev); 3262306a36Sopenharmony_ci#else 3362306a36Sopenharmony_cistatic inline int imx_pcm_dma_init(struct platform_device *pdev) 3462306a36Sopenharmony_ci{ 3562306a36Sopenharmony_ci return -ENODEV; 3662306a36Sopenharmony_ci} 3762306a36Sopenharmony_ci#endif 3862306a36Sopenharmony_ci 3962306a36Sopenharmony_ci#if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_FIQ) 4062306a36Sopenharmony_ciint imx_pcm_fiq_init(struct platform_device *pdev, 4162306a36Sopenharmony_ci struct imx_pcm_fiq_params *params); 4262306a36Sopenharmony_civoid imx_pcm_fiq_exit(struct platform_device *pdev); 4362306a36Sopenharmony_ci#else 4462306a36Sopenharmony_cistatic inline int imx_pcm_fiq_init(struct platform_device *pdev, 4562306a36Sopenharmony_ci struct imx_pcm_fiq_params *params) 4662306a36Sopenharmony_ci{ 4762306a36Sopenharmony_ci return -ENODEV; 4862306a36Sopenharmony_ci} 4962306a36Sopenharmony_ci 5062306a36Sopenharmony_cistatic inline void imx_pcm_fiq_exit(struct platform_device *pdev) 5162306a36Sopenharmony_ci{ 5262306a36Sopenharmony_ci} 5362306a36Sopenharmony_ci#endif 5462306a36Sopenharmony_ci 5562306a36Sopenharmony_ci#endif /* _IMX_PCM_H */ 56