drivers/media/platform/msm/camera/cam_sensor_module/cam_sensor_io/cam_sensor_io.h

/* Copyright (c) 2017, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
 * GNU General Public License for more details.
 */

#ifndef _CAM_SENSOR_IO_H_
#define _CAM_SENSOR_IO_H_

#include <media/cam_sensor.h>

#include "cam_sensor_cmn_header.h"

#define CCI_MASTER 1
#define I2C_MASTER 2
#define SPI_MASTER 3

/**
 * @master_type: CCI master type
 * @client: I2C client information structure
 * @cci_client: CCI client information structure
 * @spi_client: SPI client information structure
 */
struct camera_io_master {
	int master_type;
	struct i2c_client *client;
	struct cam_sensor_cci_client *cci_client;
	struct cam_sensor_spi_client *spi_client;
};

/**
 * @io_master_info: I2C/SPI master information
 * @addr: I2C address
 * @data: I2C data
 * @addr_type: I2C addr_type
 * @data_type: I2C data type
 *
 * This API abstracts read functionality based on master type
 */
int32_t camera_io_dev_read(struct camera_io_master *io_master_info,
	uint32_t addr, uint32_t *data,
	enum camera_sensor_i2c_type addr_type,
	enum camera_sensor_i2c_type data_type);

/**
 * @io_master_info: I2C/SPI master information
 * @addr: I2C address
 * @data: I2C data
 * @data_type: I2C data type
 * @num_bytes: number of bytes
 *
 * This API abstracts read functionality based on master type
 */
int32_t camera_io_dev_read_seq(struct camera_io_master *io_master_info,
	uint32_t addr, uint8_t *data,
	enum camera_sensor_i2c_type addr_type,
	int32_t num_bytes);

/**
 * @io_master_info: I2C/SPI master information
 *
 * This API initializes the I2C/SPI master based on master type
 */
int32_t camera_io_init(struct camera_io_master *io_master_info);

/**
 * @io_master_info: I2C/SPI master information
 *
 * This API releases the I2C/SPI master based on master type
 */
int32_t camera_io_release(struct camera_io_master *io_master_info);

/**
 * @io_master_info: I2C/SPI master information
 * @write_setting: write settings information
 *
 * This API abstracts write functionality based on master type
 */
int32_t camera_io_dev_write(struct camera_io_master *io_master_info,
	struct cam_sensor_i2c_reg_setting *write_setting);

/**
 * @io_master_info: I2C/SPI master information
 * @write_setting: write settings information
 * @cam_sensor_i2c_write_flag: differentiate between burst & seq
 *
 * This API abstracts write functionality based on master type and
 * write flag for continuous write
 */
int32_t camera_io_dev_write_continuous(struct camera_io_master *io_master_info,
	struct cam_sensor_i2c_reg_setting *write_setting,
	uint8_t cam_sensor_i2c_write_flag);

/**
 * @io_master_info: I2C/SPI master information
 * @addr: I2C address
 * @data: I2C data
 * @data_mask: I2C data mask
 * @data_type: I2C data type
 * @addr_type: I2C address type
 * @delay_ms: delay in milli seconds
 *
 * This API abstracts poll functionality based on master type
 */
int32_t camera_io_dev_poll(struct camera_io_master *io_master_info,
	uint32_t addr, uint16_t data, uint32_t data_mask,
	enum camera_sensor_i2c_type addr_type,
	enum camera_sensor_i2c_type data_type,
	uint32_t delay_ms);

#include "cam_sensor_i2c.h"
#include "cam_sensor_spi.h"
#endif /* _CAM_SENSOR_IO_H_ */