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/* Copyright 2015 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* BMM150 magnetometer definition */
#ifndef __CROS_EC_MAG_BMM150_H
#define __CROS_EC_MAG_BMM150_H
#include "accelgyro.h"
#define BMM150_ADDR0 0x20
#define BMM150_ADDR1 0x22
#define BMM150_ADDR2 0x24
#define BMM150_ADDR3 0x26
#define BMM150_CHIP_ID 0x40
#define BMM150_CHIP_ID_MAJOR 0x32
#define BMM150_BASE_DATA 0x42
#define BMM150_INT_STATUS 0x4a
#define BMM150_PWR_CTRL 0x4b
#define BMM150_SRST ((1 << 7) | (1 << 1))
#define BMM150_PWR_ON (1 << 0)
#define BMM150_OP_CTRL 0x4c
#define BMM150_OP_MODE_OFFSET 1
#define BMM150_OP_MODE_MASK 3
#define BMM150_OP_MODE_NORMAL 0x00
#define BMM150_OP_MODE_FORCED 0x01
#define BMM150_OP_MODE_SLEEP 0x03
#define BMM150_INT_CTRL 0x4d
/* Hidden registers for RHALL calculation */
#define BMM150_REGA_DIG_X1 0x5d
#define BMM150_REGA_DIG_Y1 0x5e
#define BMM150_REGA_DIG_Z4_LSB 0x62
#define BMM150_REGA_DIG_Z4_MSB 0x63
#define BMM150_REGA_DIG_X2 0x64
#define BMM150_REGA_DIG_Y2 0x65
#define BMM150_REGA_DIG_Z2_LSB 0x68
#define BMM150_REGA_DIG_Z2_MSB 0x69
#define BMM150_REGA_DIG_Z1_LSB 0x6a
#define BMM150_REGA_DIG_Z1_MSB 0x6b
#define BMM150_REGA_DIG_XYZ1_LSB 0x6c
#define BMM150_REGA_DIG_XYZ1_MSB 0x6d
#define BMM150_REGA_DIG_Z3_LSB 0x6e
#define BMM150_REGA_DIG_Z3_MSB 0x6f
#define BMM150_REGA_DIG_XY2 0x70
#define BMM150_REGA_DIG_XY1 0x71
/* Overflow */
#define BMM150_FLIP_OVERFLOW_ADCVAL (-4096)
#define BMM150_HALL_OVERFLOW_ADCVAL (-16384)
#define BMM150_OVERFLOW_OUTPUT (0x8000)
struct bmm150_comp_registers {
/* Local copy of the compensation registers. */
int8_t dig1[2];
int8_t dig2[2];
uint16_t dig_z1;
int16_t dig_z2;
int16_t dig_z3;
int16_t dig_z4;
uint8_t dig_xy1;
int8_t dig_xy2;
uint16_t dig_xyz1;
/* Factory or online calibration */
int16_t offset[3];
};
#define BMM150_COMP_REG(_s) \
(&BMI160_GET_DATA(_s)->comp_regs)
/* Specific initialization of BMM150 when behing BMI160 */
int bmm150_init(const struct motion_sensor_t *s);
/* Command to normalize and apply temperature compensation */
void bmm150_normalize(const struct motion_sensor_t *s,
vector_3_t v,
uint8_t *data);
int bmm150_set_offset(const struct motion_sensor_t *s,
const int16_t *offset,
int16_t temp);
int bmm150_get_offset(const struct motion_sensor_t *s,
int16_t *offset,
int16_t *temp);
#endif /* __CROS_EC_MAG_BMM150_H */
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