board/volteer/sensors.c - chromiumos/platform/ec - Git at Google

 /* 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 "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;

 /* 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 */
 static const mat33_fp_t lid_standard_ref = {
 	{ FLOAT_TO_FP(1), 0, 0},
 	{ 0, FLOAT_TO_FP(-1), 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 */
 	},
 };
 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 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);

 #ifndef TEST_BUILD
 void lid_angle_peripheral_enable(int enable)
 {
 	int chipset_in_s0 = chipset_in_state(CHIPSET_STATE_ON);

 	if (enable) {
 		keyboard_scan_enable(1, KB_SCAN_DISABLE_LID_ANGLE);
 	} else {
 		/*
 		 * Ensure that the chipset is off before disabling the keyboard.
 		 * When the chipset is on, the EC keeps the keyboard enabled and
 		 * the AP decides whether to ignore input devices or not.
 		 */
 		if (!chipset_in_s0)
 			keyboard_scan_enable(0, KB_SCAN_DISABLE_LID_ANGLE);
 	}
 }
 #endif
	/* 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 "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;

	/* 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 */
	static const mat33_fp_t lid_standard_ref = {
	{ FLOAT_TO_FP(1), 0, 0},
	{ 0, FLOAT_TO_FP(-1), 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 */
	},
	};
	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 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);

	#ifndef TEST_BUILD
	void lid_angle_peripheral_enable(int enable)
	{
	int chipset_in_s0 = chipset_in_state(CHIPSET_STATE_ON);

	if (enable) {
	keyboard_scan_enable(1, KB_SCAN_DISABLE_LID_ANGLE);
	} else {
	/*
	* Ensure that the chipset is off before disabling the keyboard.
	* When the chipset is on, the EC keeps the keyboard enabled and
	* the AP decides whether to ignore input devices or not.
	*/
	if (!chipset_in_s0)
	keyboard_scan_enable(0, KB_SCAN_DISABLE_LID_ANGLE);
	}
	}
	#endif