1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * tegra_pcm.h - Definitions for Tegra PCM driver
4  *
5  * Author: Stephen Warren <swarren@nvidia.com>
6  * Copyright (C) 2010,2012 - NVIDIA, Inc.
7  *
8  * Based on code copyright/by:
9  *
10  * Copyright (c) 2009-2010, NVIDIA Corporation.
11  * Scott Peterson <speterson@nvidia.com>
12  *
13  * Copyright (C) 2010 Google, Inc.
14  * Iliyan Malchev <malchev@google.com>
15  */
16 
17 #ifndef __TEGRA_PCM_H__
18 #define __TEGRA_PCM_H__
19 
20 #include <sound/dmaengine_pcm.h>
21 #include <sound/asound.h>
22 
23 int tegra_pcm_construct(struct snd_soc_component *component,
24 			struct snd_soc_pcm_runtime *rtd);
25 int tegra_pcm_open(struct snd_soc_component *component,
26 		   struct snd_pcm_substream *substream);
27 int tegra_pcm_close(struct snd_soc_component *component,
28 		    struct snd_pcm_substream *substream);
29 int tegra_pcm_hw_params(struct snd_soc_component *component,
30 			struct snd_pcm_substream *substream,
31 			struct snd_pcm_hw_params *params);
32 snd_pcm_uframes_t tegra_pcm_pointer(struct snd_soc_component *component,
33 				    struct snd_pcm_substream *substream);
34 int tegra_pcm_platform_register(struct device *dev);
35 int devm_tegra_pcm_platform_register(struct device *dev);
36 int tegra_pcm_platform_register_with_chan_names(struct device *dev,
37 				struct snd_dmaengine_pcm_config *config,
38 				char *txdmachan, char *rxdmachan);
39 void tegra_pcm_platform_unregister(struct device *dev);
40 
41 #endif
42