/*
 * Copyright (C) 2017 MediaTek Inc.
 *
 * 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.
 *
 * 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 BMI160_GYRO_H
#define BMI160_GYRO_H

#include <linux/ioctl.h>

#define BMG_DRIVER_VERSION "V1.0"

#define BMI160_ACCESS_BY_GSE_I2C

/* apply low pass filter on output */
/* #define CONFIG_BMG_LOWPASS */

#define BMG_AXIS_X				0
#define BMG_AXIS_Y				1
#define BMG_AXIS_Z				2
#define BMG_AXES_NUM			3
#define BMG_DATA_LEN			6
#define BMG_BUFSIZE				128
#define C_MAX_FIR_LENGTH		(32)
#define MAX_SENSOR_NAME			(32)

#define BMG_GET_BITSLICE(regvar, bitname)\
	((regvar & bitname##__MSK) >> bitname##__POS)
#define BMG_SET_BITSLICE(regvar, bitname, val)\
	((regvar & ~bitname##__MSK) | ((val<<bitname##__POS)&bitname##__MSK))

#define BMI160_FS_125_LSB               2624
#define BMI160_FS_250_LSB               1312
#define BMI160_FS_500_LSB               656
#define BMI160_FS_1000_LSB              328
#define BMI160_FS_2000_LSB              164

#define DEGREE_TO_RAD				7517
#define SW_CALIBRATION
#define BMG_DEV_NAME				"bmi160_gyro"
#define UNKNOWN_DEV					"unknown sensor"
#define BMI160_GYRO_I2C_ADDRESS		0x66
#define BMI160_USER_CHIP_ID_ADDR	0x00

#define SENSOR_CHIP_ID_BMI		(0xD0)
#define SENSOR_CHIP_ID_BMI_C2	(0xD1)
#define SENSOR_CHIP_ID_BMI_C3	(0xD3)
#define SENSOR_CHIP_REV_ID_BMI	(0x00)
/* USER DATA REGISTERS DEFINITION START */
/* Chip ID Description - Reg Addr --> 0x00, Bit --> 0...7 */
#define BMI160_USER_CHIP_ID__POS	0
#define BMI160_USER_CHIP_ID__MSK	0xFF
#define BMI160_USER_CHIP_ID__LEN	8
#define BMI160_USER_CHIP_ID__REG	BMI160_USER_CHIP_ID_ADDR

/* BMI160 Gyro ODR */
#define BMI160_GYRO_ODR_RESERVED	0x00
#define BMI160_GYRO_ODR_25HZ		0x06
#define BMI160_GYRO_ODR_50HZ		0x07
#define BMI160_GYRO_ODR_100HZ		0x08
#define BMI160_GYRO_ODR_200HZ		0x09
#define BMI160_GYRO_ODR_400HZ		0x0A
#define BMI160_GYRO_ODR_800HZ		0x0B
#define BMI160_GYRO_ODR_1600HZ		0x0C
#define BMI160_GYRO_ODR_3200HZ		0x0D

#define C_BMI160_FOURTEEN_U8X       ((u8)14)

#define BMI160_USER_GYR_CONF_ADDR   0X42
/* Gyro_Conf Description - Reg Addr --> 0x42, Bit --> 0...3 */
#define BMI160_USER_GYR_CONF_ODR__POS	0
#define BMI160_USER_GYR_CONF_ODR__LEN   4
#define BMI160_USER_GYR_CONF_ODR__MSK   0x0F
#define BMI160_USER_GYR_CONF_ODR__REG   BMI160_USER_GYR_CONF_ADDR

/* range */
#define BMI160_RANGE_2000			0
#define BMI160_RANGE_1000			1
#define BMI160_RANGE_500			2
#define BMI160_RANGE_250			3
#define BMI160_RANGE_125			4

#define BMI160_USER_GYR_RANGE_ADDR  0X43
/* Gyr_Range Description - Reg Addr --> 0x43, Bit --> 0...2 */
#define BMI160_USER_GYR_RANGE__POS  0
#define BMI160_USER_GYR_RANGE__LEN  3
#define BMI160_USER_GYR_RANGE__MSK  0x07
#define BMI160_USER_GYR_RANGE__REG  BMI160_USER_GYR_RANGE_ADDR

#define BMI160_CMD_COMMANDS_ADDR	0X7E
/* Command description address - Reg Addr --> 0x7E, Bit -->  0....7 */
#define BMI160_CMD_COMMANDS__POS    0
#define BMI160_CMD_COMMANDS__LEN    8
#define BMI160_CMD_COMMANDS__MSK    0xFF
#define BMI160_CMD_COMMANDS__REG	BMI160_CMD_COMMANDS_ADDR

#define CMD_PMU_GYRO_SUSPEND        0x14
#define CMD_PMU_GYRO_NORMAL         0x15
#define CMD_PMU_GYRO_FASTSTART      0x17

#define BMI160_SHIFT_1_POSITION     1
#define BMI160_SHIFT_2_POSITION     2
#define BMI160_SHIFT_3_POSITION     3
#define BMI160_SHIFT_4_POSITION     4
#define BMI160_SHIFT_5_POSITION     5
#define BMI160_SHIFT_6_POSITION     6
#define BMI160_SHIFT_7_POSITION     7
#define BMI160_SHIFT_8_POSITION     8
#define BMI160_SHIFT_12_POSITION    12
#define BMI160_SHIFT_16_POSITION    16

#define BMI160_USER_ERROR_ADDR					(0X02)
/* Error Description - Reg Addr --> (0x02), Bit --> 6 */
#define BMI160_USER_DROP_CMD_ERR__POS              (6)
#define BMI160_USER_DROP_CMD_ERR__LEN              (1)
#define BMI160_USER_DROP_CMD_ERR__MSK              (0x40)
#define BMI160_USER_DROP_CMD_ERR__REG              (BMI160_USER_ERROR_ADDR)

#define BMI160_USER_DATA_8_ADDR		0X0C
/* GYR_X (LSB) Description - Reg Addr --> 0x0C, Bit --> 0...7 */
#define BMI160_USER_DATA_8_GYR_X_LSB__POS	0
#define BMI160_USER_DATA_8_GYR_X_LSB__LEN	8
#define BMI160_USER_DATA_8_GYR_X_LSB__MSK   0xFF
#define BMI160_USER_DATA_8_GYR_X_LSB__REG   BMI160_USER_DATA_8_ADDR
#define BMI160_USER_PMU_STATUS_ADDR			0X03

/* PMU_Status Description of GYRO - Reg Addr --> (0x03), Bit --> 3...2 */
#define BMI160_USER_GYRO_POWER_MODE_STAT__POS               (2)
#define BMI160_USER_GYRO_POWER_MODE_STAT__LEN               (2)
#define BMI160_USER_GYRO_POWER_MODE_STAT__MSK               (0x0C)
#define BMI160_USER_GYRO_POWER_MODE_STAT__REG		      \
(BMI160_USER_PMU_STATUS_ADDR)
#define BMI160_GET_BITSLICE(regvar, bitname)\
			((regvar & bitname##__MSK) >> bitname##__POS)
#define BMI160_SET_BITSLICE(regvar, bitname, val)\
			((regvar & ~bitname##__MSK) | \
			((val<<bitname##__POS)&bitname##__MSK))

#define BMI160_USER_TEMPERATURE_0_ADDR			(0X20)
#define BMI160_USER_TEMPERATURE_1_ADDR			(0X21)
#define BMI160_USER_TEMP_LSB_VALUE__REG               \
		(BMI160_USER_TEMPERATURE_0_ADDR)
#define	BMI160_TEMP_DATA_SIZE       (2)

enum BMI_GYRO_PM_TYPE {
	BMI_GYRO_PM_NORMAL = 0,
	BMI_GYRO_PM_FAST_START,
	BMI_GYRO_PM_SUSPEND,
	BMI_GYRO_PM_MAX
};

extern struct i2c_client *bmi160_acc_i2c_client;
#ifdef BMI160_ACCESS_BY_GSE_I2C
extern s8 bmi_i2c_read_wrapper(u8 dev_addr, u8 reg_addr, u8 *data, u8 len);
extern s8 bmi_i2c_write_wrapper(u8 dev_addr, u8 reg_addr, u8 *data, u8 len);
#endif
int bmg_get_powermode(struct i2c_client *client, unsigned char *mode);
int bmg_get_drop_cmd_err(struct i2c_client *client,
	unsigned char *drop_cmd_err);
#endif/* BMI160_GYRO_H */