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/* Copyright 2016 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.
*/
/* BMA2x2 gsensor module for Chrome EC */
#ifndef __CROS_EC_ACCEL_BMA2x2_H
#define __CROS_EC_ACCEL_BMA2x2_H
extern const struct accelgyro_drv bma2x2_accel_drv;
/* I2C ADDRESS DEFINITIONS */
/* The following definition of I2C address is used for the following sensors
* BMA255
* BMA355
* BMA280
* BMA282
* BMA223
* BMA254
* BMA284
* BMA250E
* BMA222E
*/
#define BMA2x2_I2C_ADDR1 0x30
#define BMA2x2_I2C_ADDR2 0x19
/* The following definition of I2C address is used for the following sensors
* BMC150
* BMC056
* BMC156
*/
#define BMA2x2_I2C_ADDR3 0x10
#define BMA2x2_I2C_ADDR4 0x11
/*** Chip-specific registers ***/
/* REGISTER ADDRESS DEFINITIONS */
#define BMA2x2_EEP_OFFSET 0x16
#define BMA2x2_IMAGE_BASE 0x38
#define BMA2x2_IMAGE_LEN 22
#define BMA2x2_CHIP_ID_ADDR 0x00
#define BMA255_CHIP_ID_MAJOR 0xfa
/* DATA ADDRESS DEFINITIONS */
#define BMA2x2_X_AXIS_LSB_ADDR 0x02
#define BMA2x2_X_AXIS_MSB_ADDR 0x03
#define BMA2x2_Y_AXIS_LSB_ADDR 0x04
#define BMA2x2_Y_AXIS_MSB_ADDR 0x05
#define BMA2x2_Z_AXIS_LSB_ADDR 0x06
#define BMA2x2_Z_AXIS_MSB_ADDR 0x07
#define BMA2x2_TEMP_ADDR 0x08
/* STATUS ADDRESS DEFINITIONS */
#define BMA2x2_STAT1_ADDR 0x09
#define BMA2x2_STAT2_ADDR 0x0A
#define BMA2x2_STAT_TAP_SLOPE_ADDR 0x0B
#define BMA2x2_STAT_ORIENT_HIGH_ADDR 0x0C
#define BMA2x2_STAT_FIFO_ADDR 0x0E
#define BMA2x2_RANGE_SELECT_ADDR 0x0F
#define BMA2x2_RANGE_SELECT_MSK 0x0F
#define BMA2x2_RANGE_2G 3
#define BMA2x2_RANGE_4G 5
#define BMA2x2_RANGE_8G 8
#define BMA2x2_RANGE_16G 12
#define BMA2x2_RANGE_TO_REG(_range) \
((_range) < 8 ? BMA2x2_RANGE_2G + ((_range) / 4) * 2 : \
BMA2x2_RANGE_8G + ((_range) / 16) * 4)
#define BMA2x2_REG_TO_RANGE(_reg) \
((_reg) < BMA2x2_RANGE_8G ? 2 + (_reg) - BMA2x2_RANGE_2G : \
8 + ((_reg) - BMA2x2_RANGE_8G) * 2)
#define BMA2x2_BW_SELECT_ADDR 0x10
#define BMA2x2_BW_MSK 0x1F
#define BMA2x2_BW_7_81HZ 0x08 /* LowPass 7.81HZ */
#define BMA2x2_BW_15_63HZ 0x09 /* LowPass 15.63HZ */
#define BMA2x2_BW_31_25HZ 0x0A /* LowPass 31.25HZ */
#define BMA2x2_BW_62_50HZ 0x0B /* LowPass 62.50HZ */
#define BMA2x2_BW_125HZ 0x0C /* LowPass 125HZ */
#define BMA2x2_BW_250HZ 0x0D /* LowPass 250HZ */
#define BMA2x2_BW_500HZ 0x0E /* LowPass 500HZ */
#define BMA2x2_BW_1000HZ 0x0F /* LowPass 1000HZ */
#define BMA2x2_BW_TO_REG(_bw) \
((_bw) < 125000 ? BMA2x2_BW_7_81HZ + __fls((_bw) / 7810) : \
BMA2x2_BW_125HZ + __fls((_bw) / 125000))
#define BMA2x2_REG_TO_BW(_reg) \
((_reg) < BMA2x2_BW_125HZ ? 7810 << ((_reg) - BMA2x2_BW_7_81HZ) : \
125000 << ((_reg) - BMA2x2_BW_125HZ))
#define BMA2x2_MODE_CTRL_ADDR 0x11
#define BMA2x2_LOW_NOISE_CTRL_ADDR 0x12
#define BMA2x2_DATA_CTRL_ADDR 0x13
#define BMA2x2_RST_ADDR 0x14
#define BMA2x2_CMD_SOFT_RESET 0xb6
/* INTERRUPT ADDRESS DEFINITIONS */
#define BMA2x2_INTR_ENABLE1_ADDR 0x16
#define BMA2x2_INTR_ENABLE2_ADDR 0x17
#define BMA2x2_INTR_SLOW_NO_MOTION_ADDR 0x18
#define BMA2x2_INTR1_PAD_SELECT_ADDR 0x19
#define BMA2x2_INTR_DATA_SELECT_ADDR 0x1A
#define BMA2x2_INTR2_PAD_SELECT_ADDR 0x1B
#define BMA2x2_INTR_SOURCE_ADDR 0x1E
#define BMA2x2_INTR_SET_ADDR 0x20
#define BMA2x2_INTR_CTRL_ADDR 0x21
/* FEATURE ADDRESS DEFINITIONS */
#define BMA2x2_LOW_DURN_ADDR 0x22
#define BMA2x2_LOW_THRES_ADDR 0x23
#define BMA2x2_LOW_HIGH_HYST_ADDR 0x24
#define BMA2x2_HIGH_DURN_ADDR 0x25
#define BMA2x2_HIGH_THRES_ADDR 0x26
#define BMA2x2_SLOPE_DURN_ADDR 0x27
#define BMA2x2_SLOPE_THRES_ADDR 0x28
#define BMA2x2_SLOW_NO_MOTION_THRES_ADDR 0x29
#define BMA2x2_TAP_PARAM_ADDR 0x2A
#define BMA2x2_TAP_THRES_ADDR 0x2B
#define BMA2x2_ORIENT_PARAM_ADDR 0x2C
#define BMA2x2_THETA_BLOCK_ADDR 0x2D
#define BMA2x2_THETA_FLAT_ADDR 0x2E
#define BMA2x2_FLAT_HOLD_TIME_ADDR 0x2F
#define BMA2x2_SELFTEST_ADDR 0x32
#define BMA2x2_EEPROM_CTRL_ADDR 0x33
#define BMA2x2_SERIAL_CTRL_ADDR 0x34
/* OFFSET ADDRESS DEFINITIONS */
#define BMA2x2_OFFSET_CTRL_ADDR 0x36
#define BMA2x2_OFFSET_RESET 0x80
#define BMA2x2_OFFSET_TRIGGER_OFF 5
#define BMA2x2_OFFSET_TRIGGER_MASK (0x3 << BMA2x2_OFFSET_TRIGGER_OFF)
#define BMA2x2_OFFSET_CAL_READY 0x10
#define BMA2x2_OFC_SETTING_ADDR 0x37
#define BMA2x2_OFC_TARGET_AXIS_OFF 1
#define BMA2x2_OFC_TARGET_AXIS_LEN 2
#define BMA2x2_OFC_TARGET_AXIS(_axis) \
(BMA2x2_OFC_TARGET_AXIS_LEN * (_axis) + BMA2x2_OFC_TARGET_AXIS_OFF)
#define BMA2x2_OFC_TARGET_0G 0
#define BMA2x2_OFC_TARGET_PLUS_1G 1
#define BMA2x2_OFC_TARGET_MINUS_1G 2
#define BMA2x2_OFFSET_X_AXIS_ADDR 0x38
#define BMA2x2_OFFSET_Y_AXIS_ADDR 0x39
#define BMA2x2_OFFSET_Z_AXIS_ADDR 0x3A
/* GP ADDRESS DEFINITIONS */
#define BMA2x2_GP0_ADDR 0x3B
#define BMA2x2_GP1_ADDR 0x3C
/* FIFO ADDRESS DEFINITIONS */
#define BMA2x2_FIFO_MODE_ADDR 0x3E
#define BMA2x2_FIFO_DATA_OUTPUT_ADDR 0x3F
#define BMA2x2_FIFO_WML_TRIG 0x30
/* Sensor resolution in number of bits. This sensor has fixed resolution. */
#define BMA2x2_RESOLUTION 12
/* Min and Max sampling frequency in mHz */
#define BMA255_ACCEL_MIN_FREQ 7810
#define BMA255_ACCEL_MAX_FREQ \
MOTION_MAX_SENSOR_FREQUENCY(1000000, 125000)
#endif /* __CROS_EC_ACCEL_BMA2x2_H */
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