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kernel_samsung_sm7125/sound/soc/codecs/dbmdx/dbmdx-i2c.h

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1.6 KiB

/*
* dbmdx-i2c.h -- DBMDX I2C interface common functions
*
* Copyright (C) 2014 DSP Group
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef _DBMDX_I2C_COMMON_H
#define _DBMDX_I2C_COMMON_H
#if IS_ENABLED(CONFIG_PM_WAKELOCKS)
#include <linux/pm_wakeup.h>
#endif
#define RETRY_COUNT 5
struct dbmdx_i2c_private;
struct dbmdx_i2c_data {
u32 boot_addr;
u32 operation_addr;
u32 read_chunk_size;
u32 write_chunk_size;
u8 read_buf[MAX_REQ_SIZE];
};
struct dbmdx_i2c_private {
struct device *dev;
struct dbmdx_i2c_data *pdata;
struct i2c_client *client;
struct chip_interface chip;
#if IS_ENABLED(CONFIG_PM_WAKELOCKS)
struct wakeup_source *ps_nosuspend_wl;
#endif
u32 interface_enabled;
};
ssize_t write_i2c_data(struct dbmdx_private *p, const void *buf,
size_t len);
ssize_t read_i2c_data(struct dbmdx_private *p, void *buf, size_t len);
ssize_t send_i2c_cmd_va(struct dbmdx_private *p, u32 command,
u16 *response);
ssize_t send_i2c_cmd_vqe(struct dbmdx_private *p,
u32 command, u16 *response);
int send_i2c_cmd_boot(struct dbmdx_private *p, u32 command);
int i2c_verify_boot_checksum(struct dbmdx_private *p,
const void *checksum, size_t chksum_len);
int i2c_verify_chip_id(struct dbmdx_private *p);
int i2c_common_probe(struct i2c_client *client,
const struct i2c_device_id *id);
int i2c_common_remove(struct i2c_client *client);
void i2c_interface_resume(struct dbmdx_i2c_private *i2c_p);
void i2c_interface_suspend(struct dbmdx_i2c_private *i2c_p);
#endif