| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 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 | |
| 28 | static inline void |
| 29 | imx_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 | |
| 37 | struct 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) |
| 47 | int imx_pcm_dma_init(struct platform_device *pdev, size_t size); |
| 48 | #else |
| 49 | static 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) |
| 56 | int imx_pcm_fiq_init(struct platform_device *pdev, |
| 57 | struct imx_pcm_fiq_params *params); |
| 58 | void imx_pcm_fiq_exit(struct platform_device *pdev); |
| 59 | #else |
| 60 | static inline int imx_pcm_fiq_init(struct platform_device *pdev, |
| 61 | struct imx_pcm_fiq_params *params) |
| 62 | { |
| 63 | return -ENODEV; |
| 64 | } |
| 65 | |
| 66 | static inline void imx_pcm_fiq_exit(struct platform_device *pdev) |
| 67 | { |
| 68 | } |
| 69 | #endif |
| 70 | |
| 71 | #endif /* _IMX_PCM_H */ |