190 lines
5.4 KiB
C
190 lines
5.4 KiB
C
/* sensor_bmc150_magn.h - header file for BMC150 magnetometer sensor driver */
|
|
|
|
/*
|
|
* Copyright (c) 2016 Intel Corporation
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef __SENSOR_BMC150_MAGN_H__
|
|
#define __SENSOR_BMC150_MAGN_H__
|
|
|
|
#include <stdint.h>
|
|
#include <i2c.h>
|
|
#include <misc/util.h>
|
|
|
|
#define BMC150_MAGN_REG_CHIP_ID 0x40
|
|
#define BMC150_MAGN_CHIP_ID_VAL 0x32
|
|
|
|
#define BMC150_MAGN_REG_X_L 0x42
|
|
#define BMC150_MAGN_REG_X_M 0x43
|
|
#define BMC150_MAGN_REG_Y_L 0x44
|
|
#define BMC150_MAGN_REG_Y_M 0x45
|
|
#define BMC150_MAGN_SHIFT_XY_L 3
|
|
#define BMC150_MAGN_REG_Z_L 0x46
|
|
#define BMC150_MAGN_REG_Z_M 0x47
|
|
#define BMC150_MAGN_SHIFT_Z_L 1
|
|
#define BMC150_MAGN_REG_RHALL_L 0x48
|
|
#define BMC150_MAGN_REG_RHALL_M 0x49
|
|
#define BMC150_MAGN_SHIFT_RHALL_L 2
|
|
|
|
#define BMC150_MAGN_REG_INT_STATUS 0x4A
|
|
|
|
#define BMC150_MAGN_REG_POWER 0x4B
|
|
#define BMC150_MAGN_MASK_POWER_CTL BIT(0)
|
|
|
|
#define BMC150_MAGN_REG_OPMODE_ODR 0x4C
|
|
#define BMC150_MAGN_MASK_OPMODE (BIT(2) | BIT(1))
|
|
#define BMC150_MAGN_SHIFT_OPMODE 1
|
|
#define BMC150_MAGN_MODE_NORMAL 0x00
|
|
#define BMC150_MAGN_MODE_FORCED 0x01
|
|
#define BMC150_MAGN_MODE_SLEEP 0x03
|
|
#define BMC150_MAGN_MASK_ODR (BIT(5) | BIT(4) | BIT(3))
|
|
#define BMC150_MAGN_SHIFT_ODR 3
|
|
|
|
#define BMC150_MAGN_REG_LOW_THRESH 0x4F
|
|
#define BMC150_MAGN_REG_HIGH_THRESH 0x50
|
|
#define BMC150_MAGN_REG_REP_XY 0x51
|
|
#define BMC150_MAGN_REG_REP_Z 0x52
|
|
#define BMC150_MAGN_REG_REP_DATAMASK 0xFF
|
|
|
|
#define BMC150_MAGN_REG_TRIM_START 0x5D
|
|
#define BMC150_MAGN_REG_TRIM_END 0x71
|
|
|
|
#define BMC150_MAGN_XY_OVERFLOW_VAL -4096
|
|
#define BMC150_MAGN_Z_OVERFLOW_VAL -16384
|
|
|
|
#define BMC150_MAGN_REGVAL_TO_REPXY(regval) (((regval) * 2) + 1)
|
|
#define BMC150_MAGN_REGVAL_TO_REPZ(regval) ((regval) + 1)
|
|
#define BMC150_MAGN_REPXY_TO_REGVAL(rep) (((rep) - 1) / 2)
|
|
#define BMC150_MAGN_REPZ_TO_REGVAL(rep) ((rep) - 1)
|
|
|
|
#define BMC150_MAGN_REG_INT 0x4D
|
|
|
|
#define BMC150_MAGN_REG_INT_DRDY 0x4E
|
|
#define BMC150_MAGN_MASK_DRDY_EN BIT(7)
|
|
#define BMC150_MAGN_SHIFT_DRDY_EN 7
|
|
#define BMC150_MAGN_MASK_DRDY_INT3 BIT(6)
|
|
#define BMC150_MAGN_MASK_DRDY_Z_EN BIT(5)
|
|
#define BMC150_MAGN_MASK_DRDY_Y_EN BIT(4)
|
|
#define BMC150_MAGN_MASK_DRDY_X_EN BIT(3)
|
|
#define BMC150_MAGN_MASK_DRDY_DR_POLARITY BIT(2)
|
|
#define BMC150_MAGN_SHIFT_DRDY_DR_POLARITY 2
|
|
#define BMC150_MAGN_MASK_DRDY_LATCHING BIT(1)
|
|
#define BMC150_MAGN_MASK_DRDY_INT3_POLARITY BIT(0)
|
|
|
|
#define BMC150_MAGN_I2C_ADDR CONFIG_BMC150_MAGN_I2C_ADDR
|
|
|
|
#if defined(CONFIG_BMC150_MAGN_SAMPLING_REP_XY) || \
|
|
defined(CONFIG_BMC150_MAGN_SAMPLING_REP_Z)
|
|
#define BMC150_MAGN_SET_ATTR_REP
|
|
#endif
|
|
|
|
#if defined(CONFIG_BMC150_MAGN_SAMPLING_RATE_RUNTIME) || \
|
|
defined(BMC150_MAGN_SET_ATTR_REP)
|
|
#define BMC150_MAGN_SET_ATTR
|
|
#endif
|
|
|
|
struct bmc150_magn_config {
|
|
char *i2c_master_dev_name;
|
|
uint16_t i2c_slave_addr;
|
|
|
|
#if defined(CONFIG_BMC150_MAGN_TRIGGER_DRDY)
|
|
char *gpio_drdy_dev_name;
|
|
uint8_t gpio_drdy_int_pin;
|
|
#endif
|
|
};
|
|
|
|
struct bmc150_magn_trim_regs {
|
|
int8_t x1;
|
|
int8_t y1;
|
|
uint16_t reserved1;
|
|
uint8_t reserved2;
|
|
int16_t z4;
|
|
int8_t x2;
|
|
int8_t y2;
|
|
uint16_t reserved3;
|
|
int16_t z2;
|
|
uint16_t z1;
|
|
uint16_t xyz1;
|
|
int16_t z3;
|
|
int8_t xy2;
|
|
uint8_t xy1;
|
|
} __packed;
|
|
|
|
struct bmc150_magn_data {
|
|
struct device *i2c_master;
|
|
struct k_sem sem;
|
|
|
|
#if defined(CONFIG_BMC150_MAGN_TRIGGER)
|
|
char __stack thread_stack[CONFIG_BMC150_MAGN_TRIGGER_THREAD_STACK];
|
|
#endif
|
|
|
|
#if defined(CONFIG_BMC150_MAGN_TRIGGER_DRDY)
|
|
struct device *gpio_drdy;
|
|
struct device *dev;
|
|
struct gpio_callback gpio_cb;
|
|
struct sensor_trigger trigger_drdy;
|
|
sensor_trigger_handler_t handler_drdy;
|
|
#endif
|
|
|
|
struct bmc150_magn_trim_regs tregs;
|
|
int rep_xy, rep_z, odr, max_odr;
|
|
int sample_x, sample_y, sample_z;
|
|
};
|
|
|
|
enum bmc150_magn_power_modes {
|
|
BMC150_MAGN_POWER_MODE_SUSPEND,
|
|
BMC150_MAGN_POWER_MODE_SLEEP,
|
|
BMC150_MAGN_POWER_MODE_NORMAL,
|
|
};
|
|
|
|
enum bmc150_magn_presets {
|
|
LOW_POWER_PRESET,
|
|
REGULAR_PRESET,
|
|
ENHANCED_REGULAR_PRESET,
|
|
HIGH_ACCURACY_PRESET
|
|
};
|
|
|
|
#if defined(CONFIG_BMC150_MAGN_PRESET_LOW_POWER)
|
|
#define BMC150_MAGN_DEFAULT_PRESET LOW_POWER_PRESET
|
|
#elif defined(CONFIG_BMC150_MAGN_PRESET_REGULAR)
|
|
#define BMC150_MAGN_DEFAULT_PRESET REGULAR_PRESET
|
|
#elif defined(CONFIG_BMC150_MAGN_PRESET_ENHANCED_REGULAR)
|
|
#define BMC150_MAGN_DEFAULT_PRESET ENHANCED_REGULAR_PRESET
|
|
#elif defined(CONFIG_BMC150_MAGN_PRESET_HIGH_ACCURACY)
|
|
#define BMC150_MAGN_DEFAULT_PRESET HIGH_ACCURACY_PRESET
|
|
#endif
|
|
|
|
enum bmc150_magn_axis {
|
|
BMC150_MAGN_AXIS_X,
|
|
BMC150_MAGN_AXIS_Y,
|
|
BMC150_MAGN_AXIS_Z,
|
|
BMC150_MAGN_RHALL,
|
|
BMC150_MAGN_AXIS_XYZ_MAX = BMC150_MAGN_RHALL,
|
|
BMC150_MAGN_AXIS_XYZR_MAX,
|
|
};
|
|
|
|
#if defined(CONFIG_BMC150_MAGN_TRIGGER)
|
|
int bmc150_magn_trigger_set(struct device *dev,
|
|
const struct sensor_trigger *trig,
|
|
sensor_trigger_handler_t handler);
|
|
|
|
int bmc150_magn_init_interrupt(struct device *dev);
|
|
#endif
|
|
|
|
#define SYS_LOG_DOMAIN "BMC150_MAGN"
|
|
#define SYS_LOG_LEVEL CONFIG_SYS_LOG_SENSOR_LEVEL
|
|
#include <misc/sys_log.h>
|
|
#endif /* __SENSOR_BMC150_MAGN_H__ */
|