linux/include/sound/designware_i2s.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (ST) 2012 Rajeev Kumar ([email protected])
 */

#ifndef __SOUND_DESIGNWARE_I2S_H
#define __SOUND_DESIGNWARE_I2S_H

#include <linux/dmaengine.h>
#include <linux/types.h>

/*
 * struct i2s_clk_config_data - represent i2s clk configuration data
 * @chan_nr: number of channel
 * @data_width: number of bits per sample (8/16/24/32 bit)
 * @sample_rate: sampling frequency (8Khz, 16Khz, 32Khz, 44Khz, 48Khz)
 */
struct i2s_clk_config_data { … };

struct dw_i2s_dev;

struct i2s_platform_data { … };

struct i2s_dma_data { … };

/* I2S DMA registers */
#define I2S_RXDMA …
#define I2S_TXDMA …

#define TWO_CHANNEL_SUPPORT …
#define FOUR_CHANNEL_SUPPORT …
#define SIX_CHANNEL_SUPPORT …
#define EIGHT_CHANNEL_SUPPORT …

#endif /*  __SOUND_DESIGNWARE_I2S_H */