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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.
*/
/* Kionix Accelerometer driver for Chrome EC */
#ifndef __CROS_EC_ACCEL_KIONIX_H
#define __CROS_EC_ACCEL_KIONIX_H
#include "common.h"
#include "driver/accel_kx022.h"
#include "driver/accel_kxcj9.h"
/*
* Struct for pairing an engineering value with the register value for a
* parameter.
*/
struct accel_param_pair {
int val; /* Value in engineering units. */
int reg; /* Corresponding register value. */
};
struct kionix_accel_data {
/* Note, the following are indicies into their respective tables. */
/* Current range of accelerometer. */
int sensor_range;
/* Current output data rate of accelerometer. */
int sensor_datarate;
/* Current resolution of accelerometer. */
int sensor_resolution;
int16_t offset[3];
};
extern const struct accelgyro_drv kionix_accel_drv;
/*
* The addr field of motion_sensor support both SPI and I2C:
*
* +-------------------------------+---+
* | 7 bit i2c address | 0 |
* +-------------------------------+---+
* Or
* +-------------------------------+---+
* | SPI device ID | 1 |
* +-------------------------------+---+
*/
#define KIONIX_IS_SPI(_addr) ((_addr) & 1)
#define KIONIX_SPI_ADDRESS(_addr) ((_addr) >> 1)
#define KIONIX_CTRL1_REG(v) (KX022_CNTL1 + \
(v) * (KXCJ9_CTRL1 - KX022_CNTL1))
#define KIONIX_CTRL2_REG(v) (KX022_CNTL2 + \
(v) * (KXCJ9_CTRL2 - KX022_CNTL2))
#define KIONIX_ODR_REG(v) (KX022_ODCNTL + \
(v) * (KXCJ9_DATA_CTRL - KX022_ODCNTL))
#define KIONIX_ODR_FIELD(v) (KX022_OSA_FIELD + \
(v) * (KXCJ9_OSA_FIELD - KX022_OSA_FIELD))
#define KIONIX_PC1_FIELD(v) (KX022_CNTL1_PC1 + \
(v) * (KXCJ9_CTRL1_PC1 - KX022_CNTL1_PC1))
#define KIONIX_RANGE_FIELD(v) (KX022_GSEL_FIELD + \
(v) * (KXCJ9_GSEL_ALL - KX022_GSEL_FIELD))
#define KIONIX_RES_FIELD(v) (KX022_RES_16BIT + \
(v) * (KXCJ9_RES_12BIT - KX022_RES_16BIT))
#define KIONIX_RESET_FIELD(v) (KX022_CNTL2_SRST + \
(v) * (KXCJ9_CTRL2_SRST - KX022_CNTL2_SRST))
#define KIONIX_XOUT_L(v) (KX022_XOUT_L + \
(v) * (KXCJ9_XOUT_L - KX022_XOUT_L))
#define KIONIX_WHO_AM_I(v) (KX022_WHOAMI + \
(v) * (KXCJ9_WHOAMI - KX022_WHOAMI))
#define KIONIX_WHO_AM_I_VAL(v) (KX022_WHO_AM_I_VAL + \
(v) * (KXCJ9_WHO_AM_I_VAL - KX022_WHO_AM_I_VAL))
#ifdef CONFIG_CMD_I2C_STRESS_TEST_ACCEL
extern struct i2c_stress_test_dev kionix_i2c_stress_test_dev;
#endif
#endif /* __CROS_EC_ACCEL_KIONIX_H */
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