linux/sound/soc/meson/aiu-fifo.h
Jerome Brunet 6ae9ca9ce9
ASoC: meson: aiu: add i2s and spdif support
Add support for the i2s and spdif audio outputs (AIU) found in the
amlogic Gx SoC family

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20200213155159.3235792-5-jbrunet@baylibre.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-02-13 20:57:22 +00:00

51 lines
1.5 KiB
C

/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
/*
* Copyright (c) 2020 BayLibre, SAS.
* Author: Jerome Brunet <jbrunet@baylibre.com>
*/
#ifndef _MESON_AIU_FIFO_H
#define _MESON_AIU_FIFO_H
struct snd_pcm_hardware;
struct snd_soc_component_driver;
struct snd_soc_dai_driver;
struct clk;
struct snd_pcm_ops;
struct snd_pcm_substream;
struct snd_soc_dai;
struct snd_pcm_hw_params;
struct platform_device;
struct aiu_fifo {
struct snd_pcm_hardware *pcm;
unsigned int mem_offset;
unsigned int fifo_block;
struct clk *pclk;
int irq;
};
int aiu_fifo_dai_probe(struct snd_soc_dai *dai);
int aiu_fifo_dai_remove(struct snd_soc_dai *dai);
snd_pcm_uframes_t aiu_fifo_pointer(struct snd_soc_component *component,
struct snd_pcm_substream *substream);
int aiu_fifo_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai);
int aiu_fifo_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai);
int aiu_fifo_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai);
int aiu_fifo_hw_free(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai);
int aiu_fifo_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai);
void aiu_fifo_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai);
int aiu_fifo_pcm_new(struct snd_soc_pcm_runtime *rtd,
struct snd_soc_dai *dai);
#endif /* _MESON_AIU_FIFO_H */