linux/sound/soc/dwc/local.h

/*
 * Copyright (ST) 2012 Rajeev Kumar ([email protected])
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2. This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

#ifndef __DESIGNWARE_LOCAL_H
#define __DESIGNWARE_LOCAL_H

#include <linux/clk.h>
#include <linux/device.h>
#include <linux/types.h>
#include <sound/dmaengine_pcm.h>
#include <sound/pcm.h>
#include <sound/designware_i2s.h>

/* common register for all channel */
#define IER …
#define IRER …
#define ITER …
#define CER …
#define CCR …
#define RXFFR …
#define TXFFR …

/* Enable register fields */
#define IER_TDM_SLOTS_SHIFT …
#define IER_FRAME_OFF_SHIFT …
#define IER_FRAME_OFF …
#define IER_INTF_TYPE …
#define IER_IEN …

/* Interrupt status register fields */
#define ISR_TXFO …
#define ISR_TXFE …
#define ISR_RXFO …
#define ISR_RXDA …

/* I2STxRxRegisters for all channels */
#define LRBR_LTHR(x) …
#define RRBR_RTHR(x) …
#define RER(x) …
#define TER(x) …
#define RCR(x) …
#define TCR(x) …
#define ISR(x) …
#define IMR(x) …
#define ROR(x) …
#define TOR(x) …
#define RFCR(x) …
#define TFCR(x) …
#define RFF(x) …
#define TFF(x) …
#define RSLOT_TSLOT(x) …

/* Receive enable register fields */
#define RER_RXSLOT_SHIFT …
#define RER_RXCHEN …

/* Transmit enable register fields */
#define TER_TXSLOT_SHIFT …
#define TER_TXCHEN …

/* I2SCOMPRegisters */
#define I2S_COMP_PARAM_2 …
#define I2S_COMP_PARAM_1 …
#define I2S_COMP_VERSION …
#define I2S_COMP_TYPE …

#define I2S_RRXDMA …
#define I2S_RTXDMA …
#define I2S_DMACR …
#define I2S_DMAEN_RXBLOCK …
#define I2S_DMAEN_TXBLOCK …

/*
 * Component parameter register fields - define the I2S block's
 * configuration.
 */
#define COMP1_TX_WORDSIZE_3(r) …
#define COMP1_TX_WORDSIZE_2(r) …
#define COMP1_TX_WORDSIZE_1(r) …
#define COMP1_TX_WORDSIZE_0(r) …
#define COMP1_TX_CHANNELS(r) …
#define COMP1_RX_CHANNELS(r) …
#define COMP1_RX_ENABLED(r) …
#define COMP1_TX_ENABLED(r) …
#define COMP1_MODE_EN(r) …
#define COMP1_FIFO_DEPTH_GLOBAL(r) …
#define COMP1_APB_DATA_WIDTH(r) …

#define COMP2_RX_WORDSIZE_3(r) …
#define COMP2_RX_WORDSIZE_2(r) …
#define COMP2_RX_WORDSIZE_1(r) …
#define COMP2_RX_WORDSIZE_0(r) …

/* Number of entries in WORDSIZE and DATA_WIDTH parameter registers */
#define COMP_MAX_WORDSIZE …
#define COMP_MAX_DATA_WIDTH …

#define MAX_CHANNEL_NUM …
#define MIN_CHANNEL_NUM …

dw_i2s_snd_dma_data;

struct dw_i2s_dev { … };

#if IS_ENABLED(CONFIG_SND_DESIGNWARE_PCM)
void dw_pcm_push_tx(struct dw_i2s_dev *dev);
void dw_pcm_pop_rx(struct dw_i2s_dev *dev);
int dw_pcm_register(struct platform_device *pdev);
#else
static inline void dw_pcm_push_tx(struct dw_i2s_dev *dev) { }
static inline void dw_pcm_pop_rx(struct dw_i2s_dev *dev) { }
static inline int dw_pcm_register(struct platform_device *pdev)
{
	return -EINVAL;
}
#endif

#endif