109 lines
2.6 KiB
C
109 lines
2.6 KiB
C
/*
|
|
* Copyright (c) 2017, NXP
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <sensor.h>
|
|
#include <i2c.h>
|
|
#include <gpio.h>
|
|
|
|
#define SYS_LOG_DOMAIN "FXAS21002"
|
|
#define SYS_LOG_LEVEL CONFIG_SYS_LOG_SENSOR_LEVEL
|
|
#include <logging/sys_log.h>
|
|
|
|
#define FXAS21002_REG_STATUS 0x00
|
|
#define FXAS21002_REG_OUTXMSB 0x01
|
|
#define FXAS21002_REG_INT_SOURCE 0x0b
|
|
#define FXAS21002_REG_WHOAMI 0x0c
|
|
#define FXAS21002_REG_CTRLREG0 0x0d
|
|
#define FXAS21002_REG_CTRLREG1 0x13
|
|
#define FXAS21002_REG_CTRLREG2 0x14
|
|
#define FXAS21002_REG_CTRLREG3 0x15
|
|
|
|
#define FXAS21002_INT_SOURCE_DRDY_MASK (1 << 0)
|
|
|
|
#define FXAS21002_CTRLREG0_FS_MASK (3 << 0)
|
|
|
|
#define FXAS21002_CTRLREG1_DR_SHIFT 2
|
|
|
|
#define FXAS21002_CTRLREG1_POWER_MASK (3 << 0)
|
|
#define FXAS21002_CTRLREG1_DR_MASK (7 << FXAS21002_CTRLREG1_DR_SHIFT)
|
|
#define FXAS21002_CTRLREG1_RST_MASK (1 << 6)
|
|
|
|
#define FXAS21002_CTRLREG2_CFG_EN_MASK (1 << 2)
|
|
#define FXAS21002_CTRLREG2_CFG_DRDY_MASK (1 << 3)
|
|
|
|
#define FXAS21002_MAX_NUM_CHANNELS 3
|
|
|
|
#define FXAS21002_BYTES_PER_CHANNEL 2
|
|
|
|
#define FXAS21002_MAX_NUM_BYTES (FXAS21002_BYTES_PER_CHANNEL * \
|
|
FXAS21002_MAX_NUM_CHANNELS)
|
|
|
|
enum fxas21002_power {
|
|
FXAS21002_POWER_STANDBY = 0,
|
|
FXAS21002_POWER_READY = 1,
|
|
FXAS21002_POWER_ACTIVE = 3,
|
|
};
|
|
|
|
enum fxas21002_range {
|
|
FXAS21002_RANGE_2000DPS = 0,
|
|
FXAS21002_RANGE_1000DPS,
|
|
FXAS21002_RANGE_500DPS,
|
|
FXAS21002_RANGE_250DPS,
|
|
};
|
|
|
|
enum fxas21002_channel {
|
|
FXAS21002_CHANNEL_GYRO_X = 0,
|
|
FXAS21002_CHANNEL_GYRO_Y,
|
|
FXAS21002_CHANNEL_GYRO_Z,
|
|
};
|
|
|
|
struct fxas21002_config {
|
|
char *i2c_name;
|
|
#ifdef CONFIG_FXAS21002_TRIGGER
|
|
char *gpio_name;
|
|
u8_t gpio_pin;
|
|
#endif
|
|
u8_t i2c_address;
|
|
u8_t whoami;
|
|
enum fxas21002_range range;
|
|
u8_t dr;
|
|
};
|
|
|
|
struct fxas21002_data {
|
|
struct device *i2c;
|
|
struct k_sem sem;
|
|
#ifdef CONFIG_FXAS21002_TRIGGER
|
|
struct device *gpio;
|
|
u8_t gpio_pin;
|
|
struct gpio_callback gpio_cb;
|
|
sensor_trigger_handler_t drdy_handler;
|
|
#endif
|
|
#ifdef CONFIG_FXAS21002_TRIGGER_OWN_THREAD
|
|
K_THREAD_STACK_MEMBER(thread_stack, CONFIG_FXAS21002_THREAD_STACK_SIZE);
|
|
struct k_thread thread;
|
|
struct k_sem trig_sem;
|
|
#endif
|
|
#ifdef CONFIG_FXAS21002_TRIGGER_GLOBAL_THREAD
|
|
struct k_work work;
|
|
struct device *dev;
|
|
#endif
|
|
s16_t raw[FXAS21002_MAX_NUM_CHANNELS];
|
|
};
|
|
|
|
int fxas21002_get_power(struct device *dev, enum fxas21002_power *power);
|
|
int fxas21002_set_power(struct device *dev, enum fxas21002_power power);
|
|
|
|
u32_t fxas21002_get_transition_time(enum fxas21002_power start,
|
|
enum fxas21002_power end,
|
|
u8_t dr);
|
|
|
|
#if CONFIG_FXAS21002_TRIGGER
|
|
int fxas21002_trigger_init(struct device *dev);
|
|
int fxas21002_trigger_set(struct device *dev,
|
|
const struct sensor_trigger *trig,
|
|
sensor_trigger_handler_t handler);
|
|
#endif
|