projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 4762fbab SG |
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 | ||
| 312bb4f6 LPC |
16 | #include <linux/platform_data/dma-imx.h> |
| 17 | ||
| 4762fbab SG |
18 | /* |
| 19 | * Do not change this as the FIQ handler depends on this size | |
| 20 | */ | |
| 21 | #define IMX_SSI_DMABUF_SIZE (64 * 1024) | |
| 22 | ||
| 312bb4f6 | 23 | static inline void |
| a8909c9b | 24 | imx_pcm_dma_params_init_data(struct imx_dma_data *dma_data, |
| 312bb4f6 LPC |
25 | int dma, bool shared) |
| 26 | { | |
| a8909c9b LPC |
27 | dma_data->dma_request = dma; |
| 28 | dma_data->priority = DMA_PRIO_HIGH; | |
| 312bb4f6 | 29 | if (shared) |
| a8909c9b | 30 | dma_data->peripheral_type = IMX_DMATYPE_SSI_SP; |
| 312bb4f6 | 31 | else |
| a8909c9b | 32 | dma_data->peripheral_type = IMX_DMATYPE_SSI; |
| 312bb4f6 LPC |
33 | } |
| 34 | ||
| 4762fbab SG |
35 | int snd_imx_pcm_mmap(struct snd_pcm_substream *substream, |
| 36 | struct vm_area_struct *vma); | |
| 37 | int imx_pcm_new(struct snd_soc_pcm_runtime *rtd); | |
| 38 | void imx_pcm_free(struct snd_pcm *pcm); | |
| 39 | ||
| 1927661b SG |
40 | #ifdef CONFIG_SND_SOC_IMX_PCM_DMA |
| 41 | int imx_pcm_dma_init(struct platform_device *pdev); | |
| adaa3229 | 42 | void imx_pcm_dma_exit(struct platform_device *pdev); |
| 1927661b SG |
43 | #else |
| 44 | static inline int imx_pcm_dma_init(struct platform_device *pdev) | |
| 45 | { | |
| 46 | return -ENODEV; | |
| 47 | } | |
| adaa3229 LPC |
48 | |
| 49 | static inline void imx_pcm_dma_exit(struct platform_device *pdev) | |
| 50 | { | |
| 51 | } | |
| 1927661b SG |
52 | #endif |
| 53 | ||
| 54 | #ifdef CONFIG_SND_SOC_IMX_PCM_FIQ | |
| 55 | int imx_pcm_fiq_init(struct platform_device *pdev); | |
| 56 | #else | |
| 57 | static inline int imx_pcm_fiq_init(struct platform_device *pdev) | |
| 58 | { | |
| 59 | return -ENODEV; | |
| 60 | } | |
| 61 | #endif | |
| 62 | ||
| 4762fbab | 63 | #endif /* _IMX_PCM_H */ |