96 lines
3.1 KiB
C
96 lines
3.1 KiB
C
/* Copyright 2015 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Kionix Accelerometer driver for Chrome EC */
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#ifndef __CROS_EC_ACCEL_KIONIX_H
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#define __CROS_EC_ACCEL_KIONIX_H
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#include "common.h"
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#include "accelgyro.h"
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#include "driver/accel_kx022.h"
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#include "driver/accel_kxcj9.h"
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/*
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* Struct for pairing an engineering value with the register value for a
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* parameter.
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*/
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struct accel_param_pair {
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int val; /* Value in engineering units. */
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int reg; /* Corresponding register value. */
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};
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struct kionix_accel_data {
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struct accelgyro_saved_data_t base;
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/* Current resolution of accelerometer. */
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int sensor_resolution;
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int16_t offset[3];
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#ifdef CONFIG_KX022_ORIENTATION_SENSOR
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int8_t raw_orientation;
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enum motionsensor_orientation orientation;
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enum motionsensor_orientation last_orientation;
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#endif
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};
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extern const struct accelgyro_drv kionix_accel_drv;
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/*
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* The addr field of motion_sensor support both SPI and I2C:
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*
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* +-------------------------------+---+
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* | 7 bit i2c address | 0 |
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* +-------------------------------+---+
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* Or
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* +-------------------------------+---+
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* | SPI device ID | 1 |
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* +-------------------------------+---+
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*/
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#define KIONIX_CTRL1_REG(v) (KX022_CNTL1 + \
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(v) * (KXCJ9_CTRL1 - KX022_CNTL1))
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#define KIONIX_CTRL2_REG(v) (KX022_CNTL2 + \
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(v) * (KXCJ9_CTRL2 - KX022_CNTL2))
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#define KIONIX_ODR_REG(v) (KX022_ODCNTL + \
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(v) * (KXCJ9_DATA_CTRL - KX022_ODCNTL))
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#define KIONIX_ODR_FIELD(v) (KX022_OSA_FIELD + \
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(v) * (KXCJ9_OSA_FIELD - KX022_OSA_FIELD))
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#define KIONIX_PC1_FIELD(v) (KX022_CNTL1_PC1 + \
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(v) * (KXCJ9_CTRL1_PC1 - KX022_CNTL1_PC1))
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#define KIONIX_RANGE_FIELD(v) (KX022_GSEL_FIELD + \
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(v) * (KXCJ9_GSEL_ALL - KX022_GSEL_FIELD))
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#define KIONIX_RES_FIELD(v) (KX022_RES_16BIT + \
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(v) * (KXCJ9_RES_12BIT - KX022_RES_16BIT))
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#define KIONIX_RESET_FIELD(v) (KX022_CNTL2_SRST + \
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(v) * (KXCJ9_CTRL2_SRST - KX022_CNTL2_SRST))
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#define KIONIX_XOUT_L(v) (KX022_XOUT_L + \
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(v) * (KXCJ9_XOUT_L - KX022_XOUT_L))
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#define KIONIX_WHO_AM_I(v) (KX022_WHOAMI + \
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(v) * (KXCJ9_WHOAMI - KX022_WHOAMI))
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#define KIONIX_WHO_AM_I_VAL(v) (KX022_WHO_AM_I_VAL + \
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(v) * (KXCJ9_WHO_AM_I_VAL - KX022_WHO_AM_I_VAL))
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#ifdef CONFIG_CMD_I2C_STRESS_TEST_ACCEL
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extern struct i2c_stress_test_dev kionix_i2c_stress_test_dev;
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#endif
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#ifdef CONFIG_KX022_ORIENTATION_SENSOR
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#define ORIENTATION_CHANGED(_sensor) \
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(((struct kionix_accel_data *)(_sensor->drv_data))->orientation != \
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((struct kionix_accel_data *)(_sensor->drv_data))->last_orientation)
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#define GET_ORIENTATION(_sensor) \
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(((struct kionix_accel_data *)(_sensor->drv_data))->orientation)
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#define SET_ORIENTATION(_sensor, _val) \
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(((struct kionix_accel_data *)(_sensor->drv_data))->orientation = _val)
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#define SET_ORIENTATION_UPDATED(_sensor) \
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(((struct kionix_accel_data *)(_sensor->drv_data))->last_orientation = \
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((struct kionix_accel_data *)(_sensor->drv_data))->orientation)
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#endif
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#endif /* __CROS_EC_ACCEL_KIONIX_H */
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