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Diffstat (limited to 'driver/accelgyro_lsm6dso.h')
| -rw-r--r-- | driver/accelgyro_lsm6dso.h | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/driver/accelgyro_lsm6dso.h b/driver/accelgyro_lsm6dso.h deleted file mode 100644 index 9a58fe7d36..0000000000 --- a/driver/accelgyro_lsm6dso.h +++ /dev/null @@ -1,223 +0,0 @@ -/* Copyright 2019 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. - */ - -/* LSM6DSO Accel and Gyro driver for Chrome EC */ - -#ifndef __CROS_EC_ACCELGYRO_LSM6DSO_H -#define __CROS_EC_ACCELGYRO_LSM6DSO_H - -#include "stm_mems_common.h" - -/* - * 7-bit address is 110101xb. Where 'x' is determined - * by the voltage on the ADDR pin - */ -#define LSM6DSO_ADDR0_FLAGS 0x6a -#define LSM6DSO_ADDR1_FLAGS 0x6b - -/* Access to embedded sensor hub register bank */ -#define LSM6DSO_FUNC_CFG_ACC_ADDR 0x01 -#define LSM6DSO_FUNC_CFG_EN 0x80 - -/* Who Am I */ -#define LSM6DSO_WHO_AM_I_REG 0x0f -#define LSM6DSO_WHO_AM_I 0x6c - -/* Common defines for Acc and Gyro sensors */ -#define LSM6DSO_EN_BIT 0x01 -#define LSM6DSO_DIS_BIT 0x00 - -#define LSM6DSO_GYRO_OUT_X_L_ADDR 0x22 -#define LSM6DSO_ACCEL_OUT_X_L_ADDR 0x28 - -#define LSM6DSO_CTRL1_ADDR 0x10 -#define LSM6DSO_CTRL2_ADDR 0x11 -#define LSM6DSO_CTRL3_ADDR 0x12 -#define LSM6DSO_SW_RESET 0x01 -#define LSM6DSO_IF_INC 0x04 -#define LSM6DSO_PP_OD 0x10 -#define LSM6DSO_H_L_ACTIVE 0x20 -#define LSM6DSO_BDU 0x40 - -#define LSM6DSO_CTRL4_ADDR 0x13 -#define LSM6DSO_INT2_ON_INT1_MASK 0x20 - -#define LSM6DSO_CTRL5_ADDR 0x14 -#define LSM6DSO_CTRL6_ADDR 0x15 -#define LSM6DSO_CTRL7_ADDR 0x16 -#define LSM6DSO_CTRL8_ADDR 0x17 -#define LSM6DSO_CTRL9_ADDR 0x18 - -#define LSM6DSO_CTRL10_ADDR 0x19 -#define LSM6DSO_TIMESTAMP_EN 0x20 - -#define LSM6DSO_STATUS_REG 0x1e - -/* Output data rate registers and masks */ -#define LSM6DSO_ODR_REG(_sensor) \ - (LSM6DSO_CTRL1_ADDR + (_sensor)) -#define LSM6DSO_ODR_MASK 0xf0 - -/* FIFO decimator registers and bitmask */ -#define LSM6DSO_FIFO_CTRL1_ADDR 0x07 -#define LSM6DSO_FIFO_CTRL2_ADDR 0x08 - -#define LSM6DSO_FIFO_CTRL3_ADDR 0x09 -#define LSM6DSO_FIFO_ODR_XL_MASK 0x0f -#define LSM6DSO_FIFO_ODR_G_MASK 0xf0 - -#define LSM6DSO_FIFO_CTRL4_ADDR 0x0a -#define LSM6DSO_FIFO_MODE_MASK 0x07 - -#define LSM6DSO_INT1_CTRL 0x0d -#define LSM6DSO_INT2_CTRL 0x0e -#define LSM6DSO_INT_FIFO_TH 0x08 -#define LSM6DSO_INT_FIFO_OVR 0x10 -#define LSM6DSO_INT_FIFO_FULL 0x20 - -#define LSM6DSO_FIFO_STS1_ADDR 0x3a -#define LSM6DSO_FIFO_STS2_ADDR 0x3b -#define LSM6DSO_FIFO_DIFF_MASK 0x07ff -#define LSM6DSO_FIFO_FULL 0x2000 -#define LSM6DSO_FIFO_DATA_OVR 0x4000 -#define LSM6DSO_FIFO_WATERMARK 0x8000 - -/* Out FIFO data register */ -#define LSM6DSO_FIFO_DATA_ADDR_TAG 0x78 - -/* Registers value for supported FIFO mode */ -#define LSM6DSO_FIFO_MODE_BYPASS_VAL 0x00 -#define LSM6DSO_FIFO_MODE_CONTINUOUS_VAL 0x06 - -/* Define device available in FIFO pattern */ -enum lsm6dso_dev_fifo { - LSM6DSO_FIFO_DEV_INVALID = -1, - LSM6DSO_FIFO_DEV_GYRO = 0, - LSM6DSO_FIFO_DEV_ACCEL, - LSM6DSO_FIFO_DEV_NUM, -}; - -/* Define FIFO data pattern, tag and len */ -#define LSM6DSO_TAG_SIZE 1 -#define LSM6DSO_FIFO_SAMPLE_SIZE (OUT_XYZ_SIZE + LSM6DSO_TAG_SIZE) - -enum lsm6dso_tag_fifo { - LSM6DSO_GYRO_TAG = 0x01, - LSM6DSO_ACC_TAG = 0x02, -}; - -struct lsm6dso_fstatus { - uint16_t len; - uint16_t pattern; -}; - -/* Absolute maximum rate for Acc and Gyro sensors */ -#define LSM6DSO_ODR_MIN_VAL 13000 -#define LSM6DSO_ODR_MAX_VAL \ - MOTION_MAX_SENSOR_FREQUENCY(416000, 13000) - -/* ODR reg value from selected data rate in mHz */ -#define LSM6DSO_ODR_TO_REG(_odr) (__fls(_odr / LSM6DSO_ODR_MIN_VAL) + 1) - -#define LSM6DSO_FIFO_ODR_MASK(_s) \ - (_s->type == MOTIONSENSE_TYPE_ACCEL ? LSM6DSO_FIFO_ODR_XL_MASK : \ - LSM6DSO_FIFO_ODR_G_MASK) - -/* Normalized ODR values from selected data rate in mHz */ -#define LSM6DSO_REG_TO_ODR(_reg) (LSM6DSO_ODR_MIN_VAL << (_reg - 1)) - -/* Full Scale ranges value and gain for Acc */ -#define LSM6DSO_FS_LIST_NUM 4 - -#define LSM6DSO_ACCEL_FS_ADDR 0x10 -#define LSM6DSO_ACCEL_FS_MASK 0x0c - -#define LSM6DSO_ACCEL_FS_2G_VAL 0x00 -#define LSM6DSO_ACCEL_FS_4G_VAL 0x02 -#define LSM6DSO_ACCEL_FS_8G_VAL 0x03 -#define LSM6DSO_ACCEL_FS_16G_VAL 0x01 - -#define LSM6DSO_ACCEL_FS_MAX_VAL 16 - -/* Accel reg value from Full Scale range */ -static inline uint8_t lsm6dso_accel_fs_reg(int fs) -{ - uint8_t ret; - - switch(fs) { - case 2: - ret = LSM6DSO_ACCEL_FS_2G_VAL; - break; - case 16: - ret = LSM6DSO_ACCEL_FS_16G_VAL; - break; - default: - ret = __fls(fs); - break; - } - - return ret; -} - -/* Accel normalized FS value from Full Scale */ -#define LSM6DSO_ACCEL_NORMALIZE_FS(_fs) (1 << __fls(_fs)) - -/* Full Scale range value and gain for Gyro */ -#define LSM6DSO_GYRO_FS_ADDR 0x11 -#define LSM6DSO_GYRO_FS_MASK 0x0c - -/* Minimal Gyro range in mDPS */ -#define LSM6DSO_GYRO_FS_MIN_VAL_MDPS ((8750 << 15) / 1000) -#define LSM6DSO_GYRO_FS_MAX_REG_VAL 3 - -/* Gyro reg value for Full Scale selection in DPS */ -#define LSM6DSO_GYRO_FS_REG(_fs) \ - __fls(MAX(1, (_fs * 1000) / LSM6DSO_GYRO_FS_MIN_VAL_MDPS)) - -/* Gyro normalized FS value (in DPS) from Full Scale register */ -#define LSM6DSO_GYRO_NORMALIZE_FS(_reg) \ - ((LSM6DSO_GYRO_FS_MIN_VAL_MDPS << (_reg)) / 1000) - -/* FS register address/mask for Acc/Gyro sensors */ -#define LSM6DSO_RANGE_REG(_sensor) (LSM6DSO_ACCEL_FS_ADDR + (_sensor)) -#define LSM6DSO_RANGE_MASK 0x0c - -/* Status register bit for Acc/Gyro data ready */ -enum lsm6dso_status { - LSM6DSO_STS_DOWN = 0x00, - LSM6DSO_STS_XLDA_UP = 0x01, - LSM6DSO_STS_GDA_UP = 0x02 -}; - -/* Status register bitmask for Acc/Gyro data ready */ -#define LSM6DSO_STS_XLDA_MASK 0x01 -#define LSM6DSO_STS_GDA_MASK 0x02 - -/* Sensor resolution in number of bits: fixed 16 bit */ -#define LSM6DSO_RESOLUTION 16 - -/* Aggregate private data for all supported sensor (Acc, Gyro) */ -struct lsm6dso_data { - struct stprivate_data st_data[LSM6DSO_FIFO_DEV_NUM]; -}; - -/* - * Note: The specific number of samples to discard depends on the filters - * configured for the chip, as well as the ODR being set. For most of our - * allowed ODRs, 3 should suffice. - * See: ST's LSM6DSO application notes (AN5192) Tables 12 and 18 for details - */ -#define LSM6DSO_DISCARD_SAMPLES 3 - -#define LSM6DSO_GET_DATA(_s) ((struct stprivate_data *)((_s)->drv_data)) - -/* Macro to initialize motion_sensors structure */ -#define LSM6DSO_ST_DATA(g, type) (&((g).st_data[type])) - -extern const struct accelgyro_drv lsm6dso_drv; - -void lsm6dso_interrupt(enum gpio_signal signal); - -#endif /* __CROS_EC_ACCELGYRO_LSM6DSO_H */ |