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/* Copyright 2020 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.
*/
/* Volteer family-specific sensor configuration */
#include "common.h"
#include "accelgyro.h"
#include "driver/accel_bma2x2.h"
#include "driver/accelgyro_bmi_common.h"
#include "driver/accelgyro_bmi160.h"
#include "driver/sync.h"
#include "keyboard_scan.h"
#include "hooks.h"
#include "i2c.h"
#include "task.h"
#include "tablet_mode.h"
#include "util.h"
/******************************************************************************/
/* Sensors */
static struct mutex g_lid_accel_mutex;
static struct mutex g_base_mutex;
/* BMA253 private data */
static struct accelgyro_saved_data_t g_bma253_data;
/* BMI160 private data */
static struct bmi_drv_data_t g_bmi160_data;
/* Rotation matrix for the lid accelerometer */
static const mat33_fp_t lid_standard_ref = {
{ 0, FLOAT_TO_FP(1), 0},
{ FLOAT_TO_FP(1), 0, 0},
{ 0, 0, FLOAT_TO_FP(-1)}
};
const mat33_fp_t base_standard_ref = {
{ FLOAT_TO_FP(1), 0, 0},
{ 0, FLOAT_TO_FP(1), 0},
{ 0, 0, FLOAT_TO_FP(1)}
};
struct motion_sensor_t motion_sensors[] = {
[LID_ACCEL] = {
.name = "Lid Accel",
.active_mask = SENSOR_ACTIVE_S0_S3,
.chip = MOTIONSENSE_CHIP_BMA255,
.type = MOTIONSENSE_TYPE_ACCEL,
.location = MOTIONSENSE_LOC_LID,
.drv = &bma2x2_accel_drv,
.mutex = &g_lid_accel_mutex,
.drv_data = &g_bma253_data,
.port = I2C_PORT_SENSOR,
.i2c_spi_addr_flags = BMA2x2_I2C_ADDR2_FLAGS,
.rot_standard_ref = &lid_standard_ref,
.min_frequency = BMA255_ACCEL_MIN_FREQ,
.max_frequency = BMA255_ACCEL_MAX_FREQ,
.default_range = 2, /* g, to support tablet mode */
.config = {
/* EC use accel for angle detection */
[SENSOR_CONFIG_EC_S0] = {
.odr = 10000 | ROUND_UP_FLAG,
},
/* Sensor on in S3 */
[SENSOR_CONFIG_EC_S3] = {
.odr = 10000 | ROUND_UP_FLAG,
},
},
},
[BASE_ACCEL] = {
.name = "Base Accel",
.active_mask = SENSOR_ACTIVE_S0_S3,
.chip = MOTIONSENSE_CHIP_BMI160,
.type = MOTIONSENSE_TYPE_ACCEL,
.location = MOTIONSENSE_LOC_BASE,
.drv = &bmi160_drv,
.mutex = &g_base_mutex,
.drv_data = &g_bmi160_data,
.port = I2C_PORT_SENSOR,
.i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
.rot_standard_ref = &base_standard_ref,
.min_frequency = BMI_ACCEL_MIN_FREQ,
.max_frequency = BMI_ACCEL_MAX_FREQ,
.default_range = 4, /* g */
.config = {
/* EC use accel for angle detection */
[SENSOR_CONFIG_EC_S0] = {
.odr = 10000 | ROUND_UP_FLAG,
.ec_rate = 100 * MSEC,
},
/* Sensor on in S3 */
[SENSOR_CONFIG_EC_S3] = {
.odr = 10000 | ROUND_UP_FLAG,
.ec_rate = 100 * MSEC,
},
},
},
[BASE_GYRO] = {
.name = "Base Gyro",
.active_mask = SENSOR_ACTIVE_S0_S3,
.chip = MOTIONSENSE_CHIP_BMI160,
.type = MOTIONSENSE_TYPE_GYRO,
.location = MOTIONSENSE_LOC_BASE,
.drv = &bmi160_drv,
.mutex = &g_base_mutex,
.drv_data = &g_bmi160_data,
.port = I2C_PORT_SENSOR,
.i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
.default_range = 1000, /* dps */
.rot_standard_ref = &base_standard_ref,
.min_frequency = BMI_GYRO_MIN_FREQ,
.max_frequency = BMI_GYRO_MAX_FREQ,
},
};
unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
static void board_sensors_init(void)
{
/* Note - BMA253 interrupt unused by EC */
/* Enable interrupt for the BMI160 accel/gyro sensor */
gpio_enable_interrupt(GPIO_EC_IMU_INT_L);
}
DECLARE_HOOK(HOOK_INIT, board_sensors_init, HOOK_PRIO_DEFAULT);
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