[linux-2.6-block.git] / drivers / iio / imu / inv_mpu6050 / inv_mpu_iio.h

/*
* Copyright (C) 2012 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.
*/
#include <linux/i2c.h>
#include <linux/i2c-mux.h>
#include <linux/kfifo.h>
#include <linux/spinlock.h>
#include <linux/iio/iio.h>
#include <linux/iio/buffer.h>
#include <linux/regmap.h>
#include <linux/iio/sysfs.h>
#include <linux/iio/kfifo_buf.h>
#include <linux/iio/trigger.h>
#include <linux/iio/triggered_buffer.h>
#include <linux/iio/trigger_consumer.h>
#include <linux/platform_data/invensense_mpu6050.h>

/**
 *  struct inv_mpu6050_reg_map - Notable registers.
 *  @sample_rate_div:	Divider applied to gyro output rate.
 *  @lpf:		Configures internal low pass filter.
 *  @user_ctrl:		Enables/resets the FIFO.
 *  @fifo_en:		Determines which data will appear in FIFO.
 *  @gyro_config:	gyro config register.
 *  @accl_config:	accel config register
 *  @fifo_count_h:	Upper byte of FIFO count.
 *  @fifo_r_w:		FIFO register.
 *  @raw_gyro:		Address of first gyro register.
 *  @raw_accl:		Address of first accel register.
 *  @temperature:	temperature register
 *  @int_enable:	Interrupt enable register.
 *  @pwr_mgmt_1:	Controls chip's power state and clock source.
 *  @pwr_mgmt_2:	Controls power state of individual sensors.
 *  @int_pin_cfg;	Controls interrupt pin configuration.
 *  @accl_offset:	Controls the accelerometer calibration offset.
 *  @gyro_offset:	Controls the gyroscope calibration offset.
 */
struct inv_mpu6050_reg_map {
	u8 sample_rate_div;
	u8 lpf;
	u8 user_ctrl;
	u8 fifo_en;
	u8 gyro_config;
	u8 accl_config;
	u8 fifo_count_h;
	u8 fifo_r_w;
	u8 raw_gyro;
	u8 raw_accl;
	u8 temperature;
	u8 int_enable;
	u8 pwr_mgmt_1;
	u8 pwr_mgmt_2;
	u8 int_pin_cfg;
	u8 accl_offset;
	u8 gyro_offset;
};

/*device enum */
enum inv_devices {
	INV_MPU6050,
	INV_MPU6500,
	INV_MPU6000,
	INV_MPU9150,
	INV_ICM20608,
	INV_NUM_PARTS
};

/**
 *  struct inv_mpu6050_chip_config - Cached chip configuration data.
 *  @fsr:		Full scale range.
 *  @lpf:		Digital low pass filter frequency.
 *  @accl_fs:		accel full scale range.
 *  @enable:		master enable state.
 *  @accl_fifo_enable:	enable accel data output
 *  @gyro_fifo_enable:	enable gyro data output
 *  @fifo_rate:		FIFO update rate.
 */
struct inv_mpu6050_chip_config {
	unsigned int fsr:2;
	unsigned int lpf:3;
	unsigned int accl_fs:2;
	unsigned int enable:1;
	unsigned int accl_fifo_enable:1;
	unsigned int gyro_fifo_enable:1;
	u16 fifo_rate;
};

/**
 *  struct inv_mpu6050_hw - Other important hardware information.
 *  @whoami:	Self identification byte from WHO_AM_I register
 *  @name:      name of the chip.
 *  @reg:   register map of the chip.
 *  @config:    configuration of the chip.
 */
struct inv_mpu6050_hw {
	u8 whoami;
	u8 *name;
	const struct inv_mpu6050_reg_map *reg;
	const struct inv_mpu6050_chip_config *config;
};

/*
 *  struct inv_mpu6050_state - Driver state variables.
 *  @TIMESTAMP_FIFO_SIZE: fifo size for timestamp.
 *  @trig:              IIO trigger.
 *  @chip_config:	Cached attribute information.
 *  @reg:		Map of important registers.
 *  @hw:		Other hardware-specific information.
 *  @chip_type:		chip type.
 *  @time_stamp_lock:	spin lock to time stamp.
 *  @plat_data:		platform data (deprecated in favor of @orientation).
 *  @orientation:	sensor chip orientation relative to main hardware.
 *  @timestamps:        kfifo queue to store time stamp.
 *  @map		regmap pointer.
 *  @irq		interrupt number.
 */
struct inv_mpu6050_state {
#define TIMESTAMP_FIFO_SIZE 16
	struct iio_trigger  *trig;
	struct inv_mpu6050_chip_config chip_config;
	const struct inv_mpu6050_reg_map *reg;
	const struct inv_mpu6050_hw *hw;
	enum   inv_devices chip_type;
	spinlock_t time_stamp_lock;
	struct i2c_mux_core *muxc;
	struct i2c_client *mux_client;
	unsigned int powerup_count;
	struct inv_mpu6050_platform_data plat_data;
	struct iio_mount_matrix orientation;
	DECLARE_KFIFO(timestamps, long long, TIMESTAMP_FIFO_SIZE);
	struct regmap *map;
	int irq;
};

/*register and associated bit definition*/
#define INV_MPU6050_REG_ACCEL_OFFSET        0x06
#define INV_MPU6050_REG_GYRO_OFFSET         0x13

#define INV_MPU6050_REG_SAMPLE_RATE_DIV     0x19
#define INV_MPU6050_REG_CONFIG              0x1A
#define INV_MPU6050_REG_GYRO_CONFIG         0x1B
#define INV_MPU6050_REG_ACCEL_CONFIG        0x1C

#define INV_MPU6050_REG_FIFO_EN             0x23
#define INV_MPU6050_BIT_ACCEL_OUT           0x08
#define INV_MPU6050_BITS_GYRO_OUT           0x70

#define INV_MPU6050_REG_INT_ENABLE          0x38
#define INV_MPU6050_BIT_DATA_RDY_EN         0x01
#define INV_MPU6050_BIT_DMP_INT_EN          0x02

#define INV_MPU6050_REG_RAW_ACCEL           0x3B
#define INV_MPU6050_REG_TEMPERATURE         0x41
#define INV_MPU6050_REG_RAW_GYRO            0x43

#define INV_MPU6050_REG_USER_CTRL           0x6A
#define INV_MPU6050_BIT_FIFO_RST            0x04
#define INV_MPU6050_BIT_DMP_RST             0x08
#define INV_MPU6050_BIT_I2C_MST_EN          0x20
#define INV_MPU6050_BIT_FIFO_EN             0x40
#define INV_MPU6050_BIT_DMP_EN              0x80
#define INV_MPU6050_BIT_I2C_IF_DIS          0x10

#define INV_MPU6050_REG_PWR_MGMT_1          0x6B
#define INV_MPU6050_BIT_H_RESET             0x80
#define INV_MPU6050_BIT_SLEEP               0x40
#define INV_MPU6050_BIT_CLK_MASK            0x7

#define INV_MPU6050_REG_PWR_MGMT_2          0x6C
#define INV_MPU6050_BIT_PWR_ACCL_STBY       0x38
#define INV_MPU6050_BIT_PWR_GYRO_STBY       0x07

#define INV_MPU6050_REG_FIFO_COUNT_H        0x72
#define INV_MPU6050_REG_FIFO_R_W            0x74

#define INV_MPU6050_BYTES_PER_3AXIS_SENSOR   6
#define INV_MPU6050_FIFO_COUNT_BYTE          2
#define INV_MPU6050_FIFO_THRESHOLD           500

/* mpu6500 registers */
#define INV_MPU6500_REG_ACCEL_OFFSET        0x77

/* delay time in milliseconds */
#define INV_MPU6050_POWER_UP_TIME            100
#define INV_MPU6050_TEMP_UP_TIME             100
#define INV_MPU6050_SENSOR_UP_TIME           30

/* delay time in microseconds */
#define INV_MPU6050_REG_UP_TIME_MIN          5000
#define INV_MPU6050_REG_UP_TIME_MAX          10000

#define INV_MPU6050_TEMP_OFFSET	             12421
#define INV_MPU6050_TEMP_SCALE               2941
#define INV_MPU6050_MAX_GYRO_FS_PARAM        3
#define INV_MPU6050_MAX_ACCL_FS_PARAM        3
#define INV_MPU6050_THREE_AXIS               3
#define INV_MPU6050_GYRO_CONFIG_FSR_SHIFT    3
#define INV_MPU6050_ACCL_CONFIG_FSR_SHIFT    3

/* 6 + 6 round up and plus 8 */
#define INV_MPU6050_OUTPUT_DATA_SIZE         24

#define INV_MPU6050_REG_INT_PIN_CFG	0x37
#define INV_MPU6050_BIT_BYPASS_EN	0x2
#define INV_MPU6050_INT_PIN_CFG		0

/* init parameters */
#define INV_MPU6050_INIT_FIFO_RATE           50
#define INV_MPU6050_TIME_STAMP_TOR           5
#define INV_MPU6050_MAX_FIFO_RATE            1000
#define INV_MPU6050_MIN_FIFO_RATE            4
#define INV_MPU6050_ONE_K_HZ                 1000

#define INV_MPU6050_REG_WHOAMI			117

#define INV_MPU6000_WHOAMI_VALUE		0x68
#define INV_MPU6050_WHOAMI_VALUE		0x68
#define INV_MPU6500_WHOAMI_VALUE		0x70
#define INV_MPU9150_WHOAMI_VALUE		0x68
#define INV_ICM20608_WHOAMI_VALUE		0xAF

/* scan element definition */
enum inv_mpu6050_scan {
	INV_MPU6050_SCAN_ACCL_X,
	INV_MPU6050_SCAN_ACCL_Y,
	INV_MPU6050_SCAN_ACCL_Z,
	INV_MPU6050_SCAN_GYRO_X,
	INV_MPU6050_SCAN_GYRO_Y,
	INV_MPU6050_SCAN_GYRO_Z,
	INV_MPU6050_SCAN_TIMESTAMP,
};

enum inv_mpu6050_filter_e {
	INV_MPU6050_FILTER_256HZ_NOLPF2 = 0,
	INV_MPU6050_FILTER_188HZ,
	INV_MPU6050_FILTER_98HZ,
	INV_MPU6050_FILTER_42HZ,
	INV_MPU6050_FILTER_20HZ,
	INV_MPU6050_FILTER_10HZ,
	INV_MPU6050_FILTER_5HZ,
	INV_MPU6050_FILTER_2100HZ_NOLPF,
	NUM_MPU6050_FILTER
};

/* IIO attribute address */
enum INV_MPU6050_IIO_ATTR_ADDR {
	ATTR_GYRO_MATRIX,
	ATTR_ACCL_MATRIX,
};

enum inv_mpu6050_accl_fs_e {
	INV_MPU6050_FS_02G = 0,
	INV_MPU6050_FS_04G,
	INV_MPU6050_FS_08G,
	INV_MPU6050_FS_16G,
	NUM_ACCL_FSR
};

enum inv_mpu6050_fsr_e {
	INV_MPU6050_FSR_250DPS = 0,
	INV_MPU6050_FSR_500DPS,
	INV_MPU6050_FSR_1000DPS,
	INV_MPU6050_FSR_2000DPS,
	NUM_MPU6050_FSR
};

enum inv_mpu6050_clock_sel_e {
	INV_CLK_INTERNAL = 0,
	INV_CLK_PLL,
	NUM_CLK
};

irqreturn_t inv_mpu6050_irq_handler(int irq, void *p);
irqreturn_t inv_mpu6050_read_fifo(int irq, void *p);
int inv_mpu6050_probe_trigger(struct iio_dev *indio_dev);
void inv_mpu6050_remove_trigger(struct inv_mpu6050_state *st);
int inv_reset_fifo(struct iio_dev *indio_dev);
int inv_mpu6050_switch_engine(struct inv_mpu6050_state *st, bool en, u32 mask);
int inv_mpu6050_write_reg(struct inv_mpu6050_state *st, int reg, u8 val);
int inv_mpu6050_set_power_itg(struct inv_mpu6050_state *st, bool power_on);
int inv_mpu_acpi_create_mux_client(struct i2c_client *client);
void inv_mpu_acpi_delete_mux_client(struct i2c_client *client);
int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name,
		int (*inv_mpu_bus_setup)(struct iio_dev *), int chip_type);
int inv_mpu_core_remove(struct device *dev);
int inv_mpu6050_set_power_itg(struct inv_mpu6050_state *st, bool power_on);
extern const struct dev_pm_ops inv_mpu_pmops;
Commit	Line	Data
09a642b7 GG	1	/*
	2	* Copyright (C) 2012 Invensense, Inc.
	3	*
	4	* This software is licensed under the terms of the GNU General Public
	5	* License version 2, as published by the Free Software Foundation, and
	6	* may be copied, distributed, and modified under those terms.
	7	*
	8	* This program is distributed in the hope that it will be useful,
	9	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	11	* GNU General Public License for more details.
	12	*/
	13	#include <linux/i2c.h>
51f97f6d	14	#include <linux/i2c-mux.h>
09a642b7 GG	15	#include <linux/kfifo.h>
	16	#include <linux/spinlock.h>
	17	#include <linux/iio/iio.h>
	18	#include <linux/iio/buffer.h>
d430f3c3	19	#include <linux/regmap.h>
09a642b7 GG	20	#include <linux/iio/sysfs.h>
	21	#include <linux/iio/kfifo_buf.h>
	22	#include <linux/iio/trigger.h>
	23	#include <linux/iio/triggered_buffer.h>
	24	#include <linux/iio/trigger_consumer.h>
	25	#include <linux/platform_data/invensense_mpu6050.h>
	26
	27	/**
	28	* struct inv_mpu6050_reg_map - Notable registers.
	29	* @sample_rate_div: Divider applied to gyro output rate.
	30	* @lpf: Configures internal low pass filter.
	31	* @user_ctrl: Enables/resets the FIFO.
	32	* @fifo_en: Determines which data will appear in FIFO.
	33	* @gyro_config: gyro config register.
	34	* @accl_config: accel config register
	35	* @fifo_count_h: Upper byte of FIFO count.
	36	* @fifo_r_w: FIFO register.
	37	* @raw_gyro: Address of first gyro register.
	38	* @raw_accl: Address of first accel register.
	39	* @temperature: temperature register
	40	* @int_enable: Interrupt enable register.
	41	* @pwr_mgmt_1: Controls chip's power state and clock source.
	42	* @pwr_mgmt_2: Controls power state of individual sensors.
725f645d	43	* @int_pin_cfg; Controls interrupt pin configuration.
d5098447 MR	44	* @accl_offset: Controls the accelerometer calibration offset.
d5098447 MR	45	* @gyro_offset: Controls the gyroscope calibration offset.
09a642b7 GG	46	*/
	47	struct inv_mpu6050_reg_map {
	48	u8 sample_rate_div;
	49	u8 lpf;
	50	u8 user_ctrl;
	51	u8 fifo_en;
	52	u8 gyro_config;
	53	u8 accl_config;
	54	u8 fifo_count_h;
	55	u8 fifo_r_w;
	56	u8 raw_gyro;
	57	u8 raw_accl;
	58	u8 temperature;
	59	u8 int_enable;
	60	u8 pwr_mgmt_1;
	61	u8 pwr_mgmt_2;
3a2ecc3d	62	u8 int_pin_cfg;
d5098447 MR	63	u8 accl_offset;
d5098447 MR	64	u8 gyro_offset;
09a642b7 GG	65	};
	66
	67	/device enum /
	68	enum inv_devices {
	69	INV_MPU6050,
6f174fd3	70	INV_MPU6500,
fd64df16	71	INV_MPU6000,
fbced0e9	72	INV_MPU9150,
468c5620	73	INV_ICM20608,
09a642b7 GG	74	INV_NUM_PARTS
	75	};
	76
	77	/**
	78	* struct inv_mpu6050_chip_config - Cached chip configuration data.
	79	* @fsr: Full scale range.
	80	* @lpf: Digital low pass filter frequency.
	81	* @accl_fs: accel full scale range.
	82	* @enable: master enable state.
	83	* @accl_fifo_enable: enable accel data output
	84	* @gyro_fifo_enable: enable gyro data output
	85	* @fifo_rate: FIFO update rate.
	86	*/
	87	struct inv_mpu6050_chip_config {
	88	unsigned int fsr:2;
	89	unsigned int lpf:3;
	90	unsigned int accl_fs:2;
	91	unsigned int enable:1;
	92	unsigned int accl_fifo_enable:1;
	93	unsigned int gyro_fifo_enable:1;
	94	u16 fifo_rate;
	95	};
	96
	97	/**
	98	* struct inv_mpu6050_hw - Other important hardware information.
cec01545	99	* @whoami: Self identification byte from WHO_AM_I register
09a642b7 GG	100	* @name: name of the chip.
	101	* @reg: register map of the chip.
	102	* @config: configuration of the chip.
	103	*/
	104	struct inv_mpu6050_hw {
cec01545	105	u8 whoami;
09a642b7 GG	106	u8 *name;
	107	const struct inv_mpu6050_reg_map *reg;
	108	const struct inv_mpu6050_chip_config *config;
	109	};
	110
	111	/*
	112	* struct inv_mpu6050_state - Driver state variables.
	113	* @TIMESTAMP_FIFO_SIZE: fifo size for timestamp.
	114	* @trig: IIO trigger.
	115	* @chip_config: Cached attribute information.
	116	* @reg: Map of important registers.
	117	* @hw: Other hardware-specific information.
	118	* @chip_type: chip type.
	119	* @time_stamp_lock: spin lock to time stamp.
eb379846 GB	120	* @plat_data: platform data (deprecated in favor of @orientation).
eb379846 GB	121	* @orientation: sensor chip orientation relative to main hardware.
09a642b7	122	* @timestamps: kfifo queue to store time stamp.
b3eea8da AR	123	* @map regmap pointer.
b3eea8da AR	124	* @irq interrupt number.
09a642b7 GG	125	*/
	126	struct inv_mpu6050_state {
	127	#define TIMESTAMP_FIFO_SIZE 16
	128	struct iio_trigger *trig;
	129	struct inv_mpu6050_chip_config chip_config;
	130	const struct inv_mpu6050_reg_map *reg;
	131	const struct inv_mpu6050_hw *hw;
	132	enum inv_devices chip_type;
	133	spinlock_t time_stamp_lock;
51f97f6d	134	struct i2c_mux_core *muxc;
a35c5d1a	135	struct i2c_client *mux_client;
3a2ecc3d	136	unsigned int powerup_count;
09a642b7	137	struct inv_mpu6050_platform_data plat_data;
eb379846	138	struct iio_mount_matrix orientation;
09a642b7	139	DECLARE_KFIFO(timestamps, long long, TIMESTAMP_FIFO_SIZE);
d430f3c3	140	struct regmap *map;
b3eea8da	141	int irq;
09a642b7 GG	142	};
	143
	144	/register and associated bit definition/
d5098447 MR	145	#define INV_MPU6050_REG_ACCEL_OFFSET 0x06
	146	#define INV_MPU6050_REG_GYRO_OFFSET 0x13
	147
09a642b7 GG	148	#define INV_MPU6050_REG_SAMPLE_RATE_DIV 0x19
	149	#define INV_MPU6050_REG_CONFIG 0x1A
	150	#define INV_MPU6050_REG_GYRO_CONFIG 0x1B
7da773e6	151	#define INV_MPU6050_REG_ACCEL_CONFIG 0x1C
09a642b7 GG	152
09a642b7 GG	153	#define INV_MPU6050_REG_FIFO_EN 0x23
7da773e6 MS	154	#define INV_MPU6050_BIT_ACCEL_OUT 0x08
7da773e6 MS	155	#define INV_MPU6050_BITS_GYRO_OUT 0x70
09a642b7 GG	156
09a642b7 GG	157	#define INV_MPU6050_REG_INT_ENABLE 0x38
7da773e6 MS	158	#define INV_MPU6050_BIT_DATA_RDY_EN 0x01
7da773e6 MS	159	#define INV_MPU6050_BIT_DMP_INT_EN 0x02
09a642b7 GG	160
	161	#define INV_MPU6050_REG_RAW_ACCEL 0x3B
	162	#define INV_MPU6050_REG_TEMPERATURE 0x41
	163	#define INV_MPU6050_REG_RAW_GYRO 0x43
	164
	165	#define INV_MPU6050_REG_USER_CTRL 0x6A
7da773e6 MS	166	#define INV_MPU6050_BIT_FIFO_RST 0x04
	167	#define INV_MPU6050_BIT_DMP_RST 0x08
	168	#define INV_MPU6050_BIT_I2C_MST_EN 0x20
	169	#define INV_MPU6050_BIT_FIFO_EN 0x40
	170	#define INV_MPU6050_BIT_DMP_EN 0x80
fd64df16	171	#define INV_MPU6050_BIT_I2C_IF_DIS 0x10
09a642b7 GG	172
09a642b7 GG	173	#define INV_MPU6050_REG_PWR_MGMT_1 0x6B
7da773e6 MS	174	#define INV_MPU6050_BIT_H_RESET 0x80
	175	#define INV_MPU6050_BIT_SLEEP 0x40
	176	#define INV_MPU6050_BIT_CLK_MASK 0x7
09a642b7 GG	177
09a642b7 GG	178	#define INV_MPU6050_REG_PWR_MGMT_2 0x6C
7da773e6 MS	179	#define INV_MPU6050_BIT_PWR_ACCL_STBY 0x38
7da773e6 MS	180	#define INV_MPU6050_BIT_PWR_GYRO_STBY 0x07
09a642b7 GG	181
	182	#define INV_MPU6050_REG_FIFO_COUNT_H 0x72
	183	#define INV_MPU6050_REG_FIFO_R_W 0x74
	184
	185	#define INV_MPU6050_BYTES_PER_3AXIS_SENSOR 6
	186	#define INV_MPU6050_FIFO_COUNT_BYTE 2
	187	#define INV_MPU6050_FIFO_THRESHOLD 500
8f356be3	188
d5098447 MR	189	/* mpu6500 registers */
	190	#define INV_MPU6500_REG_ACCEL_OFFSET 0x77
	191
8f356be3	192	/* delay time in milliseconds */
09a642b7 GG	193	#define INV_MPU6050_POWER_UP_TIME 100
	194	#define INV_MPU6050_TEMP_UP_TIME 100
	195	#define INV_MPU6050_SENSOR_UP_TIME 30
8f356be3 MR	196
	197	/* delay time in microseconds */
	198	#define INV_MPU6050_REG_UP_TIME_MIN 5000
	199	#define INV_MPU6050_REG_UP_TIME_MAX 10000
09a642b7 GG	200
	201	#define INV_MPU6050_TEMP_OFFSET 12421
	202	#define INV_MPU6050_TEMP_SCALE 2941
	203	#define INV_MPU6050_MAX_GYRO_FS_PARAM 3
	204	#define INV_MPU6050_MAX_ACCL_FS_PARAM 3
	205	#define INV_MPU6050_THREE_AXIS 3
	206	#define INV_MPU6050_GYRO_CONFIG_FSR_SHIFT 3
	207	#define INV_MPU6050_ACCL_CONFIG_FSR_SHIFT 3
	208
	209	/* 6 + 6 round up and plus 8 */
	210	#define INV_MPU6050_OUTPUT_DATA_SIZE 24
	211
3a2ecc3d SP	212	#define INV_MPU6050_REG_INT_PIN_CFG 0x37
3a2ecc3d SP	213	#define INV_MPU6050_BIT_BYPASS_EN 0x2
c278ac0e	214	#define INV_MPU6050_INT_PIN_CFG 0
3a2ecc3d	215
09a642b7 GG	216	/* init parameters */
09a642b7 GG	217	#define INV_MPU6050_INIT_FIFO_RATE 50
7da773e6 MS	218	#define INV_MPU6050_TIME_STAMP_TOR 5
	219	#define INV_MPU6050_MAX_FIFO_RATE 1000
	220	#define INV_MPU6050_MIN_FIFO_RATE 4
	221	#define INV_MPU6050_ONE_K_HZ 1000
09a642b7	222
cec01545 CDL	223	#define INV_MPU6050_REG_WHOAMI 117
	224
	225	#define INV_MPU6000_WHOAMI_VALUE 0x68
	226	#define INV_MPU6050_WHOAMI_VALUE 0x68
	227	#define INV_MPU6500_WHOAMI_VALUE 0x70
fbced0e9	228	#define INV_MPU9150_WHOAMI_VALUE 0x68
468c5620	229	#define INV_ICM20608_WHOAMI_VALUE 0xAF
cec01545	230
09a642b7 GG	231	/* scan element definition */
	232	enum inv_mpu6050_scan {
	233	INV_MPU6050_SCAN_ACCL_X,
	234	INV_MPU6050_SCAN_ACCL_Y,
	235	INV_MPU6050_SCAN_ACCL_Z,
	236	INV_MPU6050_SCAN_GYRO_X,
	237	INV_MPU6050_SCAN_GYRO_Y,
	238	INV_MPU6050_SCAN_GYRO_Z,
	239	INV_MPU6050_SCAN_TIMESTAMP,
	240	};
	241
	242	enum inv_mpu6050_filter_e {
	243	INV_MPU6050_FILTER_256HZ_NOLPF2 = 0,
	244	INV_MPU6050_FILTER_188HZ,
	245	INV_MPU6050_FILTER_98HZ,
	246	INV_MPU6050_FILTER_42HZ,
	247	INV_MPU6050_FILTER_20HZ,
	248	INV_MPU6050_FILTER_10HZ,
	249	INV_MPU6050_FILTER_5HZ,
	250	INV_MPU6050_FILTER_2100HZ_NOLPF,
	251	NUM_MPU6050_FILTER
	252	};
	253
	254	/* IIO attribute address */
	255	enum INV_MPU6050_IIO_ATTR_ADDR {
	256	ATTR_GYRO_MATRIX,
	257	ATTR_ACCL_MATRIX,
	258	};
	259
	260	enum inv_mpu6050_accl_fs_e {
	261	INV_MPU6050_FS_02G = 0,
	262	INV_MPU6050_FS_04G,
	263	INV_MPU6050_FS_08G,
	264	INV_MPU6050_FS_16G,
	265	NUM_ACCL_FSR
	266	};
	267
	268	enum inv_mpu6050_fsr_e {
	269	INV_MPU6050_FSR_250DPS = 0,
	270	INV_MPU6050_FSR_500DPS,
	271	INV_MPU6050_FSR_1000DPS,
	272	INV_MPU6050_FSR_2000DPS,
	273	NUM_MPU6050_FSR
	274	};
	275
	276	enum inv_mpu6050_clock_sel_e {
	277	INV_CLK_INTERNAL = 0,
	278	INV_CLK_PLL,
	279	NUM_CLK
	280	};
	281
	282	irqreturn_t inv_mpu6050_irq_handler(int irq, void *p);
	283	irqreturn_t inv_mpu6050_read_fifo(int irq, void *p);
	284	int inv_mpu6050_probe_trigger(struct iio_dev *indio_dev);
	285	void inv_mpu6050_remove_trigger(struct inv_mpu6050_state *st);
	286	int inv_reset_fifo(struct iio_dev *indio_dev);
	287	int inv_mpu6050_switch_engine(struct inv_mpu6050_state *st, bool en, u32 mask);
	288	int inv_mpu6050_write_reg(struct inv_mpu6050_state *st, int reg, u8 val);
	289	int inv_mpu6050_set_power_itg(struct inv_mpu6050_state *st, bool power_on);
b3eea8da AR	290	int inv_mpu_acpi_create_mux_client(struct i2c_client *client);
b3eea8da AR	291	void inv_mpu_acpi_delete_mux_client(struct i2c_client *client);
fd64df16	292	int inv_mpu_core_probe(struct regmap regmap, int irq, const char name,
33da559f	293	int (inv_mpu_bus_setup)(struct iio_dev ), int chip_type);
b3eea8da	294	int inv_mpu_core_remove(struct device *dev);
fd64df16	295	int inv_mpu6050_set_power_itg(struct inv_mpu6050_state *st, bool power_on);
b3eea8da	296	extern const struct dev_pm_ops inv_mpu_pmops;