/* Copyright 2018 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.
 */

/* Grunt family-specific configuration */

#include "adc.h"
#include "adc_chip.h"
#include "button.h"
#include "charge_manager.h"
#include "charge_state.h"
#include "charge_state_v2.h"
#include "common.h"
#include "compile_time_macros.h"
#include "console.h"
#include "cros_board_info.h"
#include "driver/accel_kionix.h"
#include "driver/accel_kx022.h"
#include "driver/accelgyro_bmi_common.h"
#include "driver/bc12/max14637.h"
#include "driver/charger/isl923x.h"
#include "driver/ppc/sn5s330.h"
#include "driver/tcpm/anx7447.h"
#include "driver/tcpm/anx74xx.h"
#include "driver/tcpm/ps8xxx.h"
#include "driver/temp_sensor/sb_tsi.h"
#include "ec_commands.h"
#include "extpower.h"
#include "gpio.h"
#include "hooks.h"
#include "i2c.h"
#include "keyboard_scan.h"
#include "lid_switch.h"
#include "motion_sense.h"
#include "power.h"
#include "power_button.h"
#include "registers.h"
#include "switch.h"
#include "system.h"
#include "task.h"
#include "tcpci.h"
#include "temp_sensor.h"
#include "thermistor.h"
#include "usb_mux.h"
#include "usb_pd.h"
#include "usb_pd_tcpm.h"
#include "usbc_ppc.h"
#include "util.h"

#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args)
#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args)

const struct adc_t adc_channels[] = {
	[ADC_TEMP_SENSOR_CHARGER] = {
		"CHARGER", NPCX_ADC_CH0, ADC_MAX_VOLT, ADC_READ_MAX+1, 0
	},
	[ADC_TEMP_SENSOR_SOC] = {
		"SOC", NPCX_ADC_CH1, ADC_MAX_VOLT, ADC_READ_MAX+1, 0
	},
	[ADC_VBUS] = {
		"VBUS", NPCX_ADC_CH8, ADC_MAX_VOLT*10, ADC_READ_MAX+1, 0
	},
	[ADC_SKU_ID1] = {
		"SKU1", NPCX_ADC_CH9, ADC_MAX_VOLT, ADC_READ_MAX+1, 0
	},
	[ADC_SKU_ID2] = {
		"SKU2", NPCX_ADC_CH4, ADC_MAX_VOLT, ADC_READ_MAX+1, 0
	},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);

/* Power signal list.  Must match order of enum power_signal. */
const struct power_signal_info power_signal_list[] = {
	{GPIO_PCH_SLP_S3_L,	POWER_SIGNAL_ACTIVE_HIGH, "SLP_S3_DEASSERTED"},
	{GPIO_PCH_SLP_S5_L,	POWER_SIGNAL_ACTIVE_HIGH, "SLP_S5_DEASSERTED"},
	{GPIO_S0_PGOOD,		POWER_SIGNAL_ACTIVE_HIGH, "S0_PGOOD"},
	{GPIO_S5_PGOOD,		POWER_SIGNAL_ACTIVE_HIGH, "S5_PGOOD"},
};
BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);

const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = {
#ifdef VARIANT_GRUNT_TCPC_0_ANX3429
	[USB_PD_PORT_ANX74XX] = {
		.bus_type = EC_BUS_TYPE_I2C,
		.i2c_info = {
			.port = I2C_PORT_TCPC0,
			.addr_flags = ANX74XX_I2C_ADDR1_FLAGS,
		},
		.drv = &anx74xx_tcpm_drv,
		/* Alert is active-low, open-drain */
		.flags = TCPC_FLAGS_ALERT_OD,
	},
#elif defined(VARIANT_GRUNT_TCPC_0_ANX3447)
	[USB_PD_PORT_ANX74XX] = {
		.bus_type = EC_BUS_TYPE_I2C,
		.i2c_info = {
			.port = I2C_PORT_TCPC0,
			.addr_flags = AN7447_TCPC0_I2C_ADDR_FLAGS,
		},
		.drv = &anx7447_tcpm_drv,
		/* Alert is active-low, push-pull */
		.flags = 0,
	},
#endif
	[USB_PD_PORT_PS8751] = {
		.bus_type = EC_BUS_TYPE_I2C,
		.i2c_info = {
			.port = I2C_PORT_TCPC1,
			.addr_flags = PS8751_I2C_ADDR1_FLAGS,
		},
		.drv = &ps8xxx_tcpm_drv,
		/* Alert is active-low, push-pull */
		.flags = 0,
	},
};

void tcpc_alert_event(enum gpio_signal signal)
{
	int port = -1;

	switch (signal) {
	case GPIO_USB_C0_PD_INT_ODL:
		port = 0;
		break;
	case GPIO_USB_C1_PD_INT_ODL:
		port = 1;
		break;
	default:
		return;
	}

	schedule_deferred_pd_interrupt(port);
}

void board_tcpc_init(void)
{
	/* Only reset TCPC if not sysjump */
	if (!system_jumped_late())
		board_reset_pd_mcu();

	/* Enable PPC interrupts. */
	gpio_enable_interrupt(GPIO_USB_C0_SWCTL_INT_ODL);
	gpio_enable_interrupt(GPIO_USB_C1_SWCTL_INT_ODL);

	/* Enable TCPC interrupts. */
	gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL);
	gpio_enable_interrupt(GPIO_USB_C1_PD_INT_ODL);

#ifdef VARIANT_GRUNT_TCPC_0_ANX3429
	/* Enable CABLE_DET interrupt for ANX3429 wake from standby */
	gpio_enable_interrupt(GPIO_USB_C0_CABLE_DET);
#endif
	/*
	 * Initialize HPD to low; after sysjump SOC needs to see
	 * HPD pulse to enable video path
	 */
	for (int port = 0; port < CONFIG_USB_PD_PORT_MAX_COUNT; ++port)
		usb_mux_hpd_update(port, 0, 0);
}
DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_I2C + 1);

uint16_t tcpc_get_alert_status(void)
{
	uint16_t status = 0;

	if (!gpio_get_level(GPIO_USB_C0_PD_INT_ODL)) {
#ifdef VARIANT_GRUNT_TCPC_0_ANX3429
		if (gpio_get_level(GPIO_USB_C0_PD_RST_L))
#elif defined(VARIANT_GRUNT_TCPC_0_ANX3447)
		if (!gpio_get_level(GPIO_USB_C0_PD_RST))
#endif
			status |= PD_STATUS_TCPC_ALERT_0;
	}

	if (!gpio_get_level(GPIO_USB_C1_PD_INT_ODL)) {
		if (gpio_get_level(GPIO_USB_C1_PD_RST_L))
			status |= PD_STATUS_TCPC_ALERT_1;
	}

	return status;
}

#ifdef VARIANT_GRUNT_TCPC_0_ANX3429
static void anx74xx_cable_det_handler(void)
{
	int cable_det = gpio_get_level(GPIO_USB_C0_CABLE_DET);
	int reset_n = gpio_get_level(GPIO_USB_C0_PD_RST_L);

	/*
	 * A cable_det low->high transition was detected. If following the
	 * debounce time, cable_det is high, and reset_n is low, then ANX3429 is
	 * currently in standby mode and needs to be woken up. Set the
	 * TCPC_RESET event which will bring the ANX3429 out of standby
	 * mode. Setting this event is gated on reset_n being low because the
	 * ANX3429 will always set cable_det when transitioning to normal mode
	 * and if in normal mode, then there is no need to trigger a tcpc reset.
	 */
	if (cable_det && !reset_n)
		task_set_event(TASK_ID_PD_C0, PD_EVENT_TCPC_RESET, 0);
}
DECLARE_DEFERRED(anx74xx_cable_det_handler);

void anx74xx_cable_det_interrupt(enum gpio_signal signal)
{
	/* debounce for 2 msec */
	hook_call_deferred(&anx74xx_cable_det_handler_data, (2 * MSEC));
}

/**
 * Power on (or off) a single TCPC.
 * minimum on/off delays are included.
 *
 * @param port	Port number of TCPC.
 * @param mode	0: power off, 1: power on.
 */
void board_set_tcpc_power_mode(int port, int mode)
{
	if (port != USB_PD_PORT_ANX74XX)
		return;

	switch (mode) {
	case ANX74XX_NORMAL_MODE:
		gpio_set_level(GPIO_EN_USB_C0_TCPC_PWR, 1);
		msleep(ANX74XX_PWR_H_RST_H_DELAY_MS);
		gpio_set_level(GPIO_USB_C0_PD_RST_L, 1);
		break;
	case ANX74XX_STANDBY_MODE:
		gpio_set_level(GPIO_USB_C0_PD_RST_L, 0);
		msleep(ANX74XX_RST_L_PWR_L_DELAY_MS);
		gpio_set_level(GPIO_EN_USB_C0_TCPC_PWR, 0);
		msleep(ANX74XX_PWR_L_PWR_H_DELAY_MS);
		break;
	default:
		break;
	}
}
#endif /* VARIANT_GRUNT_TCPC_0_ANX3429 */

void board_reset_pd_mcu(void)
{
#ifdef VARIANT_GRUNT_TCPC_0_ANX3429
	/* Assert reset to TCPC1 (ps8751) */
	gpio_set_level(GPIO_USB_C1_PD_RST_L, 0);

	/* Assert reset to TCPC0 (anx3429) */
	gpio_set_level(GPIO_USB_C0_PD_RST_L, 0);

	/* TCPC1 (ps8751) requires 1ms reset down assertion */
	msleep(MAX(1, ANX74XX_RST_L_PWR_L_DELAY_MS));

	/* Deassert reset to TCPC1 */
	gpio_set_level(GPIO_USB_C1_PD_RST_L, 1);
	/* Disable TCPC0 power */
	gpio_set_level(GPIO_EN_USB_C0_TCPC_PWR, 0);

	/*
	 * anx3429 requires 10ms reset/power down assertion
	 */
	msleep(ANX74XX_PWR_L_PWR_H_DELAY_MS);
	board_set_tcpc_power_mode(USB_PD_PORT_ANX74XX, 1);
#elif defined(VARIANT_GRUNT_TCPC_0_ANX3447)
	/* Assert reset to TCPC0 (anx3447) */
	gpio_set_level(GPIO_USB_C0_PD_RST, 1);
	msleep(ANX74XX_RESET_HOLD_MS);
	gpio_set_level(GPIO_USB_C0_PD_RST, 0);
	msleep(ANX74XX_RESET_FINISH_MS);

	/* Assert reset to TCPC1 (ps8751) */
	gpio_set_level(GPIO_USB_C1_PD_RST_L, 0);
	msleep(PS8XXX_RESET_DELAY_MS);
	gpio_set_level(GPIO_USB_C1_PD_RST_L, 1);
#endif
}

static uint32_t sku_id;

static int ps8751_tune_mux(const struct usb_mux *me)
{
	/* Tune USB mux registers for treeya's port 1 Rx measurement */
	if ((sku_id >= 0xa0) && (sku_id <= 0xaf))
		mux_write(me, PS8XXX_REG_MUX_USB_C2SS_EQ, 0x40);

	return EC_SUCCESS;
}

const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = {
#ifdef VARIANT_GRUNT_TCPC_0_ANX3429
	[USB_PD_PORT_ANX74XX] = {
		.usb_port = USB_PD_PORT_ANX74XX,
		.driver = &anx74xx_tcpm_usb_mux_driver,
		.hpd_update = &anx74xx_tcpc_update_hpd_status,
	},
#elif defined(VARIANT_GRUNT_TCPC_0_ANX3447)
	[USB_PD_PORT_ANX74XX] = {
		.usb_port = USB_PD_PORT_ANX74XX,
		.driver = &anx7447_usb_mux_driver,
		.hpd_update = &anx7447_tcpc_update_hpd_status,
	},
#endif
	[USB_PD_PORT_PS8751] = {
		.usb_port = USB_PD_PORT_PS8751,
		.driver = &tcpci_tcpm_usb_mux_driver,
		.hpd_update = &ps8xxx_tcpc_update_hpd_status,
		.board_init = &ps8751_tune_mux,
	}
};

struct ppc_config_t ppc_chips[] = {
	{
		.i2c_port = I2C_PORT_TCPC0,
		.i2c_addr_flags = SN5S330_ADDR0_FLAGS,
		.drv = &sn5s330_drv
	},
	{
		.i2c_port = I2C_PORT_TCPC1,
		.i2c_addr_flags = SN5S330_ADDR0_FLAGS,
		.drv = &sn5s330_drv
	},
};
unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips);

void ppc_interrupt(enum gpio_signal signal)
{
	int port = (signal == GPIO_USB_C0_SWCTL_INT_ODL) ? 0 : 1;

	sn5s330_interrupt(port);
}

int ppc_get_alert_status(int port)
{
	if (port == 0)
		return gpio_get_level(GPIO_USB_C0_SWCTL_INT_ODL) == 0;
	else
		return gpio_get_level(GPIO_USB_C1_SWCTL_INT_ODL) == 0;
}

void board_overcurrent_event(int port, int is_overcurrented)
{
	enum gpio_signal signal = (port == 0) ? GPIO_USB_C0_OC_L
					      : GPIO_USB_C1_OC_L;
	/* Note that the levels are inverted because the pin is active low. */
	int lvl = is_overcurrented ? 0 : 1;

	gpio_set_level(signal, lvl);

	CPRINTS("p%d: overcurrent!", port);
}

/* BC 1.2 chip Configuration */
const struct max14637_config_t max14637_config[CONFIG_USB_PD_PORT_MAX_COUNT] = {
	[USB_PD_PORT_ANX74XX] = {
		.chip_enable_pin = GPIO_USB_C0_BC12_VBUS_ON_L,
		.chg_det_pin = GPIO_USB_C0_BC12_CHG_DET,
		.flags = MAX14637_FLAGS_ENABLE_ACTIVE_LOW,
	},
	[USB_PD_PORT_PS8751] = {
		.chip_enable_pin = GPIO_USB_C1_BC12_VBUS_ON_L,
		.chg_det_pin = GPIO_USB_C1_BC12_CHG_DET,
		.flags = MAX14637_FLAGS_ENABLE_ACTIVE_LOW,
	},
};

/* Charger Chip Configuration */
const struct charger_config_t chg_chips[] = {
	{
		.i2c_port = I2C_PORT_CHARGER,
		.i2c_addr_flags = ISL923X_ADDR_FLAGS,
		.drv = &isl923x_drv,
	},
};

const unsigned int chg_cnt = ARRAY_SIZE(chg_chips);


const int usb_port_enable[USB_PORT_COUNT] = {
	GPIO_EN_USB_A0_5V,
	GPIO_EN_USB_A1_5V,
};

static void baseboard_chipset_suspend(void)
{
	/*
	 * Turn off display backlight. This ensures that the backlight stays off
	 * in S3, no matter what the AP has it set to. The AP also controls it.
	 * This is here more for legacy reasons.
	 */
	gpio_set_level(GPIO_ENABLE_BACKLIGHT_L, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, baseboard_chipset_suspend,
	     HOOK_PRIO_DEFAULT);

static void baseboard_chipset_resume(void)
{
	/* Allow display backlight to turn on. See above backlight comment */
	gpio_set_level(GPIO_ENABLE_BACKLIGHT_L, 0);

}
DECLARE_HOOK(HOOK_CHIPSET_RESUME, baseboard_chipset_resume, HOOK_PRIO_DEFAULT);

static void baseboard_chipset_startup(void)
{
	/*
	 * Enable sensor power (lid accel, gyro) in S3 for calculating the lid
	 * angle (needed on convertibles to disable resume from keyboard in
	 * tablet mode).
	 */
	gpio_set_level(GPIO_EN_PP1800_SENSOR, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_STARTUP, baseboard_chipset_startup,
	     HOOK_PRIO_DEFAULT);

static void baseboard_chipset_shutdown(void)
{
	/* Disable sensor power (lid accel, gyro) in S5. */
	gpio_set_level(GPIO_EN_PP1800_SENSOR, 0);
}
DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, baseboard_chipset_shutdown,
	     HOOK_PRIO_DEFAULT);

int board_is_i2c_port_powered(int port)
{
	if (port != I2C_PORT_SENSOR)
		return 1;

	/* Sensor power (lid accel, gyro) is off in S5 (and G3). */
	return chipset_in_state(CHIPSET_STATE_ANY_OFF) ? 0 : 1;
}

int board_set_active_charge_port(int port)
{
	int i;

	CPRINTS("New chg p%d", port);

	if (port == CHARGE_PORT_NONE) {
		/* Disable all ports. */
		for (i = 0; i < ppc_cnt; i++) {
			if (ppc_vbus_sink_enable(i, 0))
				CPRINTS("p%d: sink disable failed.", i);
		}

		return EC_SUCCESS;
	}

	/* Check if the port is sourcing VBUS. */
	if (ppc_is_sourcing_vbus(port)) {
		CPRINTF("Skip enable p%d", port);
		return EC_ERROR_INVAL;
	}

	/*
	 * Turn off the other ports' sink path FETs, before enabling the
	 * requested charge port.
	 */
	for (i = 0; i < ppc_cnt; i++) {
		if (i == port)
			continue;

		if (ppc_vbus_sink_enable(i, 0))
			CPRINTS("p%d: sink disable failed.", i);
	}

	/* Enable requested charge port. */
	if (ppc_vbus_sink_enable(port, 1)) {
		CPRINTS("p%d: sink enable failed.", port);
		return EC_ERROR_UNKNOWN;
	}

	return EC_SUCCESS;
}

void board_set_charge_limit(int port, int supplier, int charge_ma,
			    int max_ma, int charge_mv)
{
	/*
	 * Limit the input current to 95% negotiated limit,
	 * to account for the charger chip margin.
	 */
	charge_ma = charge_ma * 95 / 100;
	charge_set_input_current_limit(MAX(charge_ma,
					   CONFIG_CHARGER_INPUT_CURRENT),
				       charge_mv);
}

/* Keyboard scan setting */
struct keyboard_scan_config keyscan_config = {
	/*
	 * F3 key scan cycle completed but scan input is not
	 * charging to logic high when EC start scan next
	 * column for "T" key, so we set .output_settle_us
	 * to 80us
	 */
	.output_settle_us = 80,
	.debounce_down_us = 6 * MSEC,
	.debounce_up_us = 30 * MSEC,
	.scan_period_us = 1500,
	.min_post_scan_delay_us = 1000,
	.poll_timeout_us = SECOND,
	.actual_key_mask = {
		0x3c, 0xff, 0xff, 0xff, 0xff, 0xf5, 0xff,
		0xa4, 0xff, 0xfe, 0x55, 0xfa, 0xca  /* full set */
	},
};

/*
 * We use 11 as the scaling factor so that the maximum mV value below (2761)
 * can be compressed to fit in a uint8_t.
 */
#define THERMISTOR_SCALING_FACTOR 11

/*
 * Values are calculated from the "Resistance VS. Temperature" table on the
 * Murata page for part NCP15WB473F03RC. Vdd=3.3V, R=30.9Kohm.
 */
static const struct thermistor_data_pair thermistor_data[] = {
	{ 2761 / THERMISTOR_SCALING_FACTOR, 0},
	{ 2492 / THERMISTOR_SCALING_FACTOR, 10},
	{ 2167 / THERMISTOR_SCALING_FACTOR, 20},
	{ 1812 / THERMISTOR_SCALING_FACTOR, 30},
	{ 1462 / THERMISTOR_SCALING_FACTOR, 40},
	{ 1146 / THERMISTOR_SCALING_FACTOR, 50},
	{ 878 / THERMISTOR_SCALING_FACTOR, 60},
	{ 665 / THERMISTOR_SCALING_FACTOR, 70},
	{ 500 / THERMISTOR_SCALING_FACTOR, 80},
	{ 434 / THERMISTOR_SCALING_FACTOR, 85},
	{ 376 / THERMISTOR_SCALING_FACTOR, 90},
	{ 326 / THERMISTOR_SCALING_FACTOR, 95},
	{ 283 / THERMISTOR_SCALING_FACTOR, 100}
};

static const struct thermistor_info thermistor_info = {
	.scaling_factor = THERMISTOR_SCALING_FACTOR,
	.num_pairs = ARRAY_SIZE(thermistor_data),
	.data = thermistor_data,
};

static int board_get_temp(int idx, int *temp_k)
{
	/* idx is the sensor index set below in temp_sensors[] */
	int mv = adc_read_channel(
		idx ? ADC_TEMP_SENSOR_SOC : ADC_TEMP_SENSOR_CHARGER);
	int temp_c;

	if (mv < 0)
		return -1;

	temp_c = thermistor_linear_interpolate(mv, &thermistor_info);
	*temp_k = C_TO_K(temp_c);
	return 0;
}

const struct temp_sensor_t temp_sensors[] = {
	{"Charger", TEMP_SENSOR_TYPE_BOARD, board_get_temp, 0},
	{"SOC", TEMP_SENSOR_TYPE_BOARD, board_get_temp, 1},
	{"CPU", TEMP_SENSOR_TYPE_CPU, sb_tsi_get_val, 0},
};
BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);

#ifdef HAS_TASK_MOTIONSENSE

/* Motion sensors */
static struct mutex g_lid_mutex;
static struct mutex g_base_mutex;

/* sensor private data */
static struct kionix_accel_data g_kx022_data;
static struct bmi_drv_data_t g_bmi160_data;

/* TODO(gcc >= 5.0) Remove the casts to const pointer at rot_standard_ref */
struct motion_sensor_t motion_sensors[] = {
	[LID_ACCEL] = {
	 .name = "Lid Accel",
	 .active_mask = SENSOR_ACTIVE_S0_S3,
	 .chip = MOTIONSENSE_CHIP_KX022,
	 .type = MOTIONSENSE_TYPE_ACCEL,
	 .location = MOTIONSENSE_LOC_LID,
	 .drv = &kionix_accel_drv,
	 .mutex = &g_lid_mutex,
	 .drv_data = &g_kx022_data,
	 .port = I2C_PORT_SENSOR,
	 .i2c_spi_addr_flags = KX022_ADDR1_FLAGS,
	 .rot_standard_ref = NULL,
	 .default_range = 2, /* g, enough for laptop. */
	 .min_frequency = KX022_ACCEL_MIN_FREQ,
	 .max_frequency = KX022_ACCEL_MAX_FREQ,
	 .config = {
		 /* EC use accel for angle detection */
		 [SENSOR_CONFIG_EC_S0] = {
			.odr = 10000 | ROUND_UP_FLAG,
			.ec_rate = 100,
		 },
		/* EC use accel for angle detection */
		[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,
	 .default_range = 2, /* g, enough for laptop */
	 .rot_standard_ref = NULL,
	 .min_frequency = BMI_ACCEL_MIN_FREQ,
	 .max_frequency = BMI_ACCEL_MAX_FREQ,
	 .config = {
		 /* EC use accel for angle detection */
		 [SENSOR_CONFIG_EC_S0] = {
			.odr = 10000 | ROUND_UP_FLAG,
			.ec_rate = 100,
		 },
		 /* EC use accel for angle detection */
		 [SENSOR_CONFIG_EC_S3] = {
			.odr = 10000 | ROUND_UP_FLAG,
		 },
	 },
	},

	[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 = NULL,
	 .min_frequency = BMI_GYRO_MIN_FREQ,
	 .max_frequency = BMI_GYRO_MAX_FREQ,
	},
};

unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);

#endif /* HAS_TASK_MOTIONSENSE */

#ifndef TEST_BUILD
void lid_angle_peripheral_enable(int enable)
{
	if (board_is_convertible())
		keyboard_scan_enable(enable, KB_SCAN_DISABLE_LID_ANGLE);
}
#endif

static const int sku_thresh_mv[] = {
	/* Vin = 3.3V, Ideal voltage, R2 values listed below */
	/* R1 = 51.1 kOhm */
	200,  /* 124 mV, 2.0 Kohm */
	366,  /* 278 mV, 4.7 Kohm */
	550,  /* 456 mV, 8.2  Kohm */
	752,  /* 644 mV, 12.4 Kohm */
	927,  /* 860 mV, 18.0 Kohm */
	1073, /* 993 mV, 22.0 Kohm */
	1235, /* 1152 mV, 27.4 Kohm */
	1386, /* 1318 mV, 34.0 Kohm */
	1552, /* 1453 mV, 40.2 Kohm */
	/* R1 = 10.0 kOhm */
	1739, /* 1650 mV, 10.0 Kohm */
	1976, /* 1827 mV, 12.4 Kohm */
	2197, /* 2121 mV, 18.0 Kohm */
	2344, /* 2269 mV, 22.0 Kohm */
	2484, /* 2418 mV, 27.4 Kohm */
	2636, /* 2550 mV, 34.0 Kohm */
	2823, /* 2721 mV, 47.0 Kohm */
};

static int board_read_sku_adc(enum adc_channel chan)
{
	int mv;
	int i;

	mv = adc_read_channel(chan);

	if (mv == ADC_READ_ERROR)
		return -1;

	for (i = 0; i < ARRAY_SIZE(sku_thresh_mv); i++)
		if (mv < sku_thresh_mv[i])
			return i;

	return -1;
}

static uint32_t board_get_adc_sku_id(void)
{
	int sku_id1, sku_id2;

	sku_id1 = board_read_sku_adc(ADC_SKU_ID1);
	sku_id2 = board_read_sku_adc(ADC_SKU_ID2);

	if (sku_id1 < 0 || sku_id2 < 0)
		return 0;

	return (sku_id2 << 4) | sku_id1;
}

static int board_get_gpio_board_version(void)
{
	return
		(!!gpio_get_level(GPIO_BOARD_VERSION1) << 0) |
		(!!gpio_get_level(GPIO_BOARD_VERSION2) << 1) |
		(!!gpio_get_level(GPIO_BOARD_VERSION3) << 2);
}

static int board_version;

static void cbi_init(void)
{
	board_version = board_get_gpio_board_version();
	sku_id = board_get_adc_sku_id();

	/*
	 * Use board version and SKU ID from CBI EEPROM if the board supports
	 * it and the SKU ID set via resistors + ADC is not valid.
	 */
#ifdef CONFIG_CROS_BOARD_INFO
	if (sku_id == 0 || sku_id == 0xff) {
		uint32_t val;

		if (cbi_get_board_version(&val) == EC_SUCCESS)
			board_version = val;
		if (cbi_get_sku_id(&val) == EC_SUCCESS)
			sku_id = val;
	}
#endif

#ifdef HAS_TASK_MOTIONSENSE
	board_update_sensor_config_from_sku();
#endif

	ccprints("Board Version: %d (0x%x)", board_version, board_version);
	ccprints("SKU: %d (0x%x)", sku_id, sku_id);
}
/*
 * Reading the SKU resistors requires the ADC module. If we are using EEPROM
 * then we also need the I2C module, but that is available before ADC.
 */
DECLARE_HOOK(HOOK_INIT, cbi_init, HOOK_PRIO_INIT_ADC + 1);

uint32_t system_get_sku_id(void)
{
	return sku_id;
}

int board_get_version(void)
{
	return board_version;
}

/*
 * Returns 1 for boards that are convertible into tablet mode, and zero for
 * clamshells.
 */
int board_is_convertible(void)
{
	/* Grunt: 6 */
	/* Kasumi360: 82 */
	/* Treeya360: a8-af */
	return (sku_id == 6 || sku_id == 82 ||
		((sku_id >= 0xa8) && (sku_id <= 0xaf)));
}

int board_is_lid_angle_tablet_mode(void)
{
	return board_is_convertible();
}

__override uint32_t board_override_feature_flags0(uint32_t flags0)
{
	/*
	 * Remove keyboard backlight feature for devices that don't support it.
	 * All Treeya and Treeya360 models do not support keyboard backlight.
	 */
	if (sku_id == 16 || sku_id == 17 ||
	    sku_id == 20 || sku_id == 21 ||
	    sku_id == 32 || sku_id == 33 ||
	    sku_id == 40 || sku_id == 41 ||
	    ((sku_id >= 0xa0) && (sku_id <= 0xaf)))
		return (flags0 & ~EC_FEATURE_MASK_0(EC_FEATURE_PWM_KEYB));
	else
		return flags0;
}

void board_hibernate(void)
{
	/*
	 * Some versions of some boards keep the port 0 PPC powered on while
	 * the EC hibernates (so Closed Case Debugging keeps working).
	 * Make sure the source FET is off and turn on the sink FET, so that
	 * plugging in AC will wake the EC. This matches the dead-battery
	 * behavior of the powered off PPC.
	 */
	ppc_vbus_source_enable(0, 0);
	ppc_vbus_sink_enable(0, 1);
}