1 files changed, 243 insertions, 0 deletions
diff --git a/board/trondo/sensors.c b/board/trondo/sensors.c
new file mode 100644
index 0000000000..f59c199e07
--- /dev/null
+++ b/board/trondo/sensors.c
@@ -0,0 +1,243 @@
+/* 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_bmi260.h"
+#include "driver/als_tcs3400.h"
+#include "driver/sync.h"
+#include "keyboard_scan.h"
+#include "hooks.h"
+#include "i2c.h"
+#include "task.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;
+
+/* BMI260 private data */
+static struct bmi_drv_data_t g_bmi260_data;
+
+/* TCS3400 private data */
+static struct als_drv_data_t g_tcs3400_data = {
+	.als_cal.scale = 1,
+	.als_cal.uscale = 0,
+	.als_cal.offset = 0,
+	.als_cal.channel_scale = {
+		.k_channel_scale = ALS_CHANNEL_SCALE(1.0), /* kc from VPD */
+		.cover_scale = ALS_CHANNEL_SCALE(1.0),     /* CT */
+	},
+};
+
+/*
+ * TODO: b/146166425 need to calibrate ALS/RGB sensor. At default settings,
+ * shining phone flashlight on sensor pegs all readings at 0xFFFF.
+ */
+static struct tcs3400_rgb_drv_data_t g_tcs3400_rgb_data = {
+	.calibration.rgb_cal[X] = {
+		.offset = 0,
+		.coeff[TCS_RED_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_GREEN_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_BLUE_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_CLEAR_COEFF_IDX] = FLOAT_TO_FP(0),
+		.scale = {
+			.k_channel_scale = ALS_CHANNEL_SCALE(1.0), /* kr */
+			.cover_scale = ALS_CHANNEL_SCALE(1.0)
+		}
+	},
+	.calibration.rgb_cal[Y] = {
+		.offset = 0,
+		.coeff[TCS_RED_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_GREEN_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_BLUE_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_CLEAR_COEFF_IDX] = FLOAT_TO_FP(0),
+		.scale = {
+			.k_channel_scale = ALS_CHANNEL_SCALE(1.0), /* kg */
+			.cover_scale = ALS_CHANNEL_SCALE(1.0)
+		},
+	},
+	.calibration.rgb_cal[Z] = {
+		.offset = 0,
+		.coeff[TCS_RED_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_GREEN_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_BLUE_COEFF_IDX] = FLOAT_TO_FP(0),
+		.coeff[TCS_CLEAR_COEFF_IDX] = FLOAT_TO_FP(0),
+		.scale = {
+			.k_channel_scale = ALS_CHANNEL_SCALE(1.0), /* kb */
+			.cover_scale = ALS_CHANNEL_SCALE(1.0)
+		}
+	},
+	.calibration.irt = INT_TO_FP(1),
+	.saturation.again = TCS_DEFAULT_AGAIN,
+	.saturation.atime = TCS_DEFAULT_ATIME,
+};
+
+/* Rotation matrix for the lid accelerometer */
+/* TODO: b/146144170 - the accelerometer is on the motherboard for proto1
+ * for testing. Once the sensor moves to the lid, the rotation matrix needs
+ * to be updated for correct behavior.
+ */
+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 = {
+	{ 0, FLOAT_TO_FP(1), 0},
+	{ FLOAT_TO_FP(-1), 0, 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_ADDR1_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_BMI260,
+		.type = MOTIONSENSE_TYPE_ACCEL,
+		.location = MOTIONSENSE_LOC_BASE,
+		.drv = &bmi260_drv,
+		.mutex = &g_base_mutex,
+		.drv_data = &g_bmi260_data,
+		.port = I2C_PORT_SENSOR,
+		.i2c_spi_addr_flags = BMI260_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_BMI260,
+		.type = MOTIONSENSE_TYPE_GYRO,
+		.location = MOTIONSENSE_LOC_BASE,
+		.drv = &bmi260_drv,
+		.mutex = &g_base_mutex,
+		.drv_data = &g_bmi260_data,
+		.port = I2C_PORT_SENSOR,
+		.i2c_spi_addr_flags = BMI260_ADDR0_FLAGS,
+		.default_range = 1000, /* dps */
+		.rot_standard_ref = &base_standard_ref,
+		.min_frequency = BMI_GYRO_MIN_FREQ,
+		.max_frequency = BMI_GYRO_MAX_FREQ,
+	},
+	[CLEAR_ALS] = {
+		.name = "Clear Light",
+		.active_mask = SENSOR_ACTIVE_S0_S3,
+		.chip = MOTIONSENSE_CHIP_TCS3400,
+		.type = MOTIONSENSE_TYPE_LIGHT,
+		.location = MOTIONSENSE_LOC_BASE,
+		.drv = &tcs3400_drv,
+		.drv_data = &g_tcs3400_data,
+		.port = I2C_PORT_SENSOR,
+		.i2c_spi_addr_flags = TCS3400_I2C_ADDR_FLAGS,
+		.rot_standard_ref = NULL,
+		.default_range = 0x10000, /* scale = 1x, uscale = 0 */
+		.min_frequency = TCS3400_LIGHT_MIN_FREQ,
+		.max_frequency = TCS3400_LIGHT_MAX_FREQ,
+		.config = {
+			/* Run ALS sensor in S0 */
+			[SENSOR_CONFIG_EC_S0] = {
+				.odr = 1000,
+			},
+		},
+	},
+
+	[RGB_ALS] = {
+		/*
+		 * RGB channels read by CLEAR_ALS and so the i2c port and
+		 * address do not need to be defined for RGB_ALS.
+		 */
+		.name = "RGB Light",
+		.active_mask = SENSOR_ACTIVE_S0_S3,
+		.chip = MOTIONSENSE_CHIP_TCS3400,
+		.type = MOTIONSENSE_TYPE_LIGHT_RGB,
+		.location = MOTIONSENSE_LOC_BASE,
+		.drv = &tcs3400_rgb_drv,
+		.drv_data = &g_tcs3400_rgb_data,
+		.rot_standard_ref = NULL,
+		.default_range = 0x10000, /* scale = 1x, uscale = 0 */
+	},
+
+	[VSYNC] = {
+		.name = "Camera VSYNC",
+		.active_mask = SENSOR_ACTIVE_S0,
+		.chip = MOTIONSENSE_CHIP_GPIO,
+		.type = MOTIONSENSE_TYPE_SYNC,
+		.location = MOTIONSENSE_LOC_CAMERA,
+		.drv = &sync_drv,
+		.default_range = 0,
+		.min_frequency = 0,
+		.max_frequency = 1,
+	},
+};
+unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
+
+/* ALS instances when LPC mapping is needed. Each entry directs to a sensor. */
+const struct motion_sensor_t *motion_als_sensors[] = {
+	&motion_sensors[CLEAR_ALS],
+};
+BUILD_ASSERT(ARRAY_SIZE(motion_als_sensors) == ALS_COUNT);
+
+static void baseboard_sensors_init(void)
+{
+	/* Note - BMA253 interrupt unused by EC */
+
+	/* Enable gpio interrupt for camera vsync */
+	gpio_enable_interrupt(GPIO_EC_CAM_VSYN_SLP_S0IX);
+	/* Enable interrupt for the TCS3400 color light sensor */
+	gpio_enable_interrupt(GPIO_EC_ALS_RGB_INT_L);
+	/* Enable interrupt for the BMI260 accel/gyro sensor */
+	gpio_enable_interrupt(GPIO_EC_IMU_INT_L);
+}
+DECLARE_HOOK(HOOK_INIT, baseboard_sensors_init, HOOK_PRIO_DEFAULT);