Merge "Merge tag 'refs/tags/TDK-Robotics-RB4-0.1-test3'"

/* SPDX-License-Identifier: GPL-2.0 */

/*

 * Copyright (C) 2020 InvenSense, Inc.

 *

 * This software is licensed under the terms of the GNU General Public

 * License version 2, as published by the Free Software Foundation, and

 * may be copied, distributed, and modified under those terms.

 *

 * 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 DRIVERS_IIO_PROXIMITY_INV_CH101_CH101_CLIENT_H_

#define DRIVERS_IIO_PROXIMITY_INV_CH101_CH101_CLIENT_H_

#include <linux/regmap.h>

#include "src/chbsp_init.h"

#define TAG "ch101: "

#define MAX_SAMPLES     450

#define MAX_DEVICES     3

#define MAX_BUSES	2

#define MAX_DEV_BUSES	(MAX_DEVICES * MAX_BUSES)

typedef u32 ioport_pin_t;

enum ioport_direction {

	IOPORT_DIR_INPUT, /*!< IOPORT input direction */

	IOPORT_DIR_OUTPUT, /*!< IOPORT output direction */

};

enum ioport_value {

	IOPORT_PIN_LEVEL_LOW, /*!< IOPORT pin value low */

	IOPORT_PIN_LEVEL_HIGH, /*!< IOPORT pin value high */

};

struct ch101_iq_data {

	s16 I;

	s16 Q;

};

struct ch101_buffer {

	u16 distance[MAX_DEV_BUSES];

	u16 amplitude[MAX_DEV_BUSES];

	u16 nb_samples[MAX_DEV_BUSES];

	struct ch101_iq_data iq_data[MAX_DEV_BUSES][MAX_SAMPLES];

	u8 mode[MAX_DEV_BUSES];

};

struct ch101_client;

struct ch101_callbacks {

	int (*write_reg)(void *cl, u16 i2c_addr, u8 reg, u16 length, u8 *data);

	int (*read_reg)(void *cl, u16 i2c_addr, u8 reg, u16 length, u8 *data);

	int (*write_sync)(void *cl, u16 i2c_addr, u16 length, u8 *data);

	int (*read_sync)(void *cl, u16 i2c_addr, u16 length, u8 *data);

	void (*set_pin_level)(ioport_pin_t pin, int value);

	void (*set_pin_dir)(ioport_pin_t pin, enum ioport_direction dir);

	void (*data_complete)(struct ch101_client *data);

	int (*setup_int_gpio)(struct ch101_client *data, uint32_t pin);

	int (*free_int_gpio)(struct ch101_client *data, uint32_t pin);

};

struct ch101_i2c_bus {

	struct i2c_client *i2c_client;

	struct gpio_desc *gpiod_int[MAX_DEVICES];

	u32 gpio_exp_prog_pin[MAX_DEVICES];

};

struct ch101_gpios {

	struct gpio_desc *gpiod_rst;

	struct gpio_desc *gpiod_rst_pulse;

};

struct ch101_client {

	struct ch101_i2c_bus bus[MAX_BUSES];

	struct ch101_gpios gpios;

	struct ch101_callbacks *cbk;

};

int ch101_core_probe(struct i2c_client *client, struct regmap *regmap,

			struct ch101_callbacks *cbk, const char *name);

int ch101_core_remove(struct i2c_client *client);

#endif /* DRIVERS_IIO_PROXIMITY_INV_CH101_CH101_CLIENT_H_ */