linux/drivers/iio/accel/mma9551_core.h

74 lines
2.5 KiB
C

/* 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_ */