root/drivers/iio/accel/mma9551_core.h
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Common code for Freescale MMA955x Intelligent Sensor Platform drivers
 * Copyright (c) 2014, Intel Corporation.
 */

#ifndef _MMA9551_CORE_H_
#define _MMA9551_CORE_H_

/* Applications IDs */
#define MMA9551_APPID_VERSION           0x00
#define MMA9551_APPID_GPIO              0x03
#define MMA9551_APPID_AFE               0x06
#define MMA9551_APPID_TILT              0x0B
#define MMA9551_APPID_SLEEP_WAKE        0x12
#define MMA9551_APPID_PEDOMETER         0x15
#define MMA9551_APPID_RSC               0x17
#define MMA9551_APPID_NONE              0xff

/* Reset/Suspend/Clear application app masks */
#define MMA9551_RSC_PED                 BIT(21)

#define MMA9551_AUTO_SUSPEND_DELAY_MS   2000

enum mma9551_gpio_pin {
        mma9551_gpio6 = 0,
        mma9551_gpio7,
        mma9551_gpio8,
        mma9551_gpio9,
        mma9551_gpio_max = mma9551_gpio9,
};

#define MMA9551_ACCEL_CHANNEL(axis) {                           \
        .type = IIO_ACCEL,                                      \
        .modified = 1,                                          \
        .channel2 = axis,                                       \
        .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),           \
        .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),   \
}

int mma9551_read_config_byte(struct i2c_client *client, u8 app_id,
                             u16 reg, u8 *val);
int mma9551_write_config_byte(struct i2c_client *client, u8 app_id,
                              u16 reg, u8 val);
int mma9551_read_status_byte(struct i2c_client *client, u8 app_id,
                             u16 reg, u8 *val);
int mma9551_read_config_word(struct i2c_client *client, u8 app_id,
                             u16 reg, u16 *val);
int mma9551_write_config_word(struct i2c_client *client, u8 app_id,
                              u16 reg, u16 val);
int mma9551_read_status_word(struct i2c_client *client, u8 app_id,
                             u16 reg, u16 *val);
int mma9551_read_config_words(struct i2c_client *client, u8 app_id,
                              u16 reg, u8 len, u16 *buf);
int mma9551_read_status_words(struct i2c_client *client, u8 app_id,
                              u16 reg, u8 len, u16 *buf);
int mma9551_write_config_words(struct i2c_client *client, u8 app_id,
                               u16 reg, u8 len, u16 *buf);
int mma9551_update_config_bits(struct i2c_client *client, u8 app_id,
                               u16 reg, u8 mask, u8 val);
int mma9551_gpio_config(struct i2c_client *client, enum mma9551_gpio_pin pin,
                        u8 app_id, u8 bitnum, int polarity);
int mma9551_read_version(struct i2c_client *client);
int mma9551_set_device_state(struct i2c_client *client, bool enable);
int mma9551_set_power_state(struct i2c_client *client, bool on);
void mma9551_sleep(int freq);
int mma9551_read_accel_chan(struct i2c_client *client,
                            const struct iio_chan_spec *chan,
                            int *val, int *val2);
int mma9551_read_accel_scale(int *val, int *val2);
int mma9551_app_reset(struct i2c_client *client, u32 app_mask);

#endif /* _MMA9551_CORE_H_ */