path: root/baseboard/zork/baseboard.c

/* 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.
 */

/* Zork 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_bmi160.h"
#include "driver/bc12/pi3usb9201.h"
#include "driver/ppc/aoz1380.h"
#include "driver/ppc/nx20p348x.h"
#include "driver/retimer/pi3dpx1207.h"
#include "driver/retimer/ps8802.h"
#include "driver/retimer/ps8818.h"
#include "driver/tcpm/ps8xxx.h"
#include "driver/tcpm/nct38xx.h"
#include "driver/temp_sensor/sb_tsi.h"
#include "driver/usb_mux/amd_fp5.h"
#include "ec_commands.h"
#include "extpower.h"
#include "fan.h"
#include "fan_chip.h"
#include "gpio.h"
#include "hooks.h"
#include "ioexpander.h"
#include "ioexpander_nct38xx.h"
#include "i2c.h"
#include "keyboard_scan.h"
#include "lid_switch.h"
#include "motion_sense.h"
#include "power.h"
#include "power_button.h"
#include "pwm.h"
#include "pwm_chip.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 CPRINTSUSB(format, args...) cprints(CC_USBCHARGE, format, ## args)
#define CPRINTFUSB(format, args...) cprintf(CC_USBCHARGE, format, ## args)

#define SAFE_RESET_VBUS_MV 5000

const enum gpio_signal hibernate_wake_pins[] = {
	GPIO_LID_OPEN,
	GPIO_AC_PRESENT,
	GPIO_POWER_BUTTON_L,
	GPIO_EC_RST_ODL,
};
const int hibernate_wake_pins_used =  ARRAY_SIZE(hibernate_wake_pins);

const struct adc_t adc_channels[] = {
	[ADC_TEMP_SENSOR_CHARGER] = {
		.name = "CHARGER",
		.input_ch = NPCX_ADC_CH2,
		.factor_mul = ADC_MAX_VOLT,
		.factor_div = ADC_READ_MAX + 1,
		.shift = 0,
	},
	[ADC_TEMP_SENSOR_SOC] = {
		.name = "SOC",
		.input_ch = NPCX_ADC_CH3,
		.factor_mul = ADC_MAX_VOLT,
		.factor_div = ADC_READ_MAX + 1,
		.shift = 0,
	},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);

const struct power_signal_info power_signal_list[] = {
	[X86_SLP_S3_N] = {
		.gpio = GPIO_PCH_SLP_S3_L,
		.flags = POWER_SIGNAL_ACTIVE_HIGH,
		.name = "SLP_S3_DEASSERTED",
	},
	[X86_SLP_S5_N] = {
		.gpio = GPIO_PCH_SLP_S5_L,
		.flags = POWER_SIGNAL_ACTIVE_HIGH,
		.name = "SLP_S5_DEASSERTED",
	},
	[X86_S0_PGOOD] = {
		.gpio = GPIO_S0_PGOOD,
		.flags = POWER_SIGNAL_ACTIVE_HIGH,
		.name = "S0_PGOOD",
	},
	[X86_S5_PGOOD] = {
		.gpio = GPIO_S5_PGOOD,
		.flags = POWER_SIGNAL_ACTIVE_HIGH,
		.name = "S5_PGOOD",
	},
};
BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);

const struct i2c_port_t i2c_ports[] = {
	{
		.name = "tcpc0",
		.port = I2C_PORT_TCPC0,
		.kbps = 400,
		.scl = GPIO_EC_I2C_USB_A0_C0_SCL,
		.sda = GPIO_EC_I2C_USB_A0_C0_SDA,
	},
	{
		.name = "tcpc1",
		.port = I2C_PORT_TCPC1,
		.kbps = 400,
		.scl = GPIO_EC_I2C_USB_A1_C1_SCL,
		.sda = GPIO_EC_I2C_USB_A1_C1_SDA,
	},
	{
		.name = "power",
		.port = I2C_PORT_BATTERY,
		.kbps = 100,
		.scl = GPIO_EC_I2C_POWER_SCL,
		.sda = GPIO_EC_I2C_POWER_SDA,
	},
	{
		.name = "mux",
		.port = I2C_PORT_USB_MUX,
		.kbps = 400,
		.scl = GPIO_EC_I2C_USBC_AP_MUX_SCL,
		.sda = GPIO_EC_I2C_USBC_AP_MUX_SDA,
	},
	{
		.name = "thermal",
		.port = I2C_PORT_THERMAL,
		.kbps = 400,
		.scl = GPIO_FCH_SIC,
		.sda = GPIO_FCH_SID,
	},
	{
		.name = "sensor",
		.port = I2C_PORT_SENSOR,
		.kbps = 400,
		.scl = GPIO_EC_I2C_SENSOR_CBI_SCL,
		.sda = GPIO_EC_I2C_SENSOR_CBI_SDA,
	},
	{
		.name = "ap_audio",
		.port = I2C_PORT_AP_AUDIO,
		.kbps = 400,
		.scl = GPIO_FCH_I2C_AUDIO_SCL,
		.sda = GPIO_FCH_I2C_AUDIO_SDA,
	},
	{
		.name = "ap_hdmi",
		.port = I2C_PORT_AP_HDMI,
		.kbps = 400,
		.scl = GPIO_FCH_I2C_HDMI_HUB_3V3_SCL,
		.sda = GPIO_FCH_I2C_HDMI_HUB_3V3_SDA,
	},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);

const struct pwm_t pwm_channels[] = {
	[PWM_CH_KBLIGHT] = {
		.channel = 3,
		.flags = PWM_CONFIG_DSLEEP,
		.freq = 100,
	},
	[PWM_CH_FAN] = {
		.channel = 2,
		.flags = PWM_CONFIG_OPEN_DRAIN,
		.freq = 25000,
	},
};
BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);

/* Physical fans. These are logically separate from pwm_channels. */
const struct fan_conf fan_conf_0 = {
	.flags = FAN_USE_RPM_MODE,
	.ch = MFT_CH_0,	/* Use MFT id to control fan */
	.pgood_gpio = -1,
	.enable_gpio = -1,
};
const struct fan_rpm fan_rpm_0 = {
	.rpm_min = 3100,
	.rpm_start = 3100,
	.rpm_max = 6900,
};
const struct fan_t fans[] = {
	[FAN_CH_0] = {
		.conf = &fan_conf_0,
		.rpm = &fan_rpm_0,
	},
};
BUILD_ASSERT(ARRAY_SIZE(fans) == FAN_CH_COUNT);

/* MFT channels. These are logically separate from pwm_channels. */
const struct mft_t mft_channels[] = {
	[MFT_CH_0] = {
		.module = NPCX_MFT_MODULE_1,
		.clk_src = TCKC_LFCLK,
		.pwm_id = PWM_CH_FAN,
	},
};
BUILD_ASSERT(ARRAY_SIZE(mft_channels) == MFT_CH_COUNT);

struct ppc_config_t ppc_chips[] = {
	[USBC_PORT_C0] = {
		/* Device does not talk I2C */
		.drv = &aoz1380_drv
	},

	[USBC_PORT_C1] = {
		.i2c_port = I2C_PORT_TCPC1,
		.i2c_addr_flags = NX20P3483_ADDR1_FLAGS,
		.drv = &nx20p348x_drv
	},
};
BUILD_ASSERT(ARRAY_SIZE(ppc_chips) == USBC_PORT_COUNT);
unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips);

void ppc_interrupt(enum gpio_signal signal)
{
	switch (signal) {
	case GPIO_USB_C0_PPC_FAULT_ODL:
		aoz1380_interrupt(USBC_PORT_C0);
		break;

	case GPIO_USB_C1_PPC_INT_ODL:
		nx20p348x_interrupt(USBC_PORT_C1);
		break;

	default:
		break;
	}
}

int board_set_active_charge_port(int port)
{
	int is_valid_port = (port >= 0 &&
			     port < CONFIG_USB_PD_PORT_MAX_COUNT);
	int i;

	if (port == CHARGE_PORT_NONE) {
		CPRINTSUSB("Disabling all charger ports");

		/* Disable all ports. */
		for (i = 0; i < ppc_cnt; i++) {
			/*
			 * Do not return early if one fails otherwise we can
			 * get into a boot loop assertion failure.
			 */
			if (ppc_vbus_sink_enable(i, 0))
				CPRINTSUSB("Disabling C%d as sink failed.", i);
		}

		return EC_SUCCESS;
	} else if (!is_valid_port) {
		return EC_ERROR_INVAL;
	}


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

	CPRINTSUSB("New charge port: C%d", port);

	/*
	 * 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))
			CPRINTSUSB("C%d: sink path disable failed.", i);
	}

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

	return EC_SUCCESS;
}

const struct tcpc_config_t tcpc_config[] = {
	[USBC_PORT_C0] = {
		.bus_type = EC_BUS_TYPE_I2C,
		.i2c_info = {
			.port = I2C_PORT_TCPC0,
			.addr_flags = NCT38XX_I2C_ADDR1_1_FLAGS,
		},
		.drv = &nct38xx_tcpm_drv,
	},
	[USBC_PORT_C1] = {
		.bus_type = EC_BUS_TYPE_I2C,
		.i2c_info = {
			.port = I2C_PORT_TCPC1,
			.addr_flags = NCT38XX_I2C_ADDR1_1_FLAGS,
		},
		.drv = &nct38xx_tcpm_drv,
	},
};
BUILD_ASSERT(ARRAY_SIZE(tcpc_config) == USBC_PORT_COUNT);
BUILD_ASSERT(CONFIG_USB_PD_PORT_MAX_COUNT == USBC_PORT_COUNT);

const struct pi3usb9201_config_t pi3usb9201_bc12_chips[] = {
	[USBC_PORT_C0] = {
		.i2c_port = I2C_PORT_TCPC0,
		.i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
	},

	[USBC_PORT_C1] = {
		.i2c_port = I2C_PORT_TCPC1,
		.i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
	},
};
BUILD_ASSERT(ARRAY_SIZE(pi3usb9201_bc12_chips) == USBC_PORT_COUNT);

void baseboard_tcpc_init(void)
{
	/* Enable PPC interrupts. */
	gpio_enable_interrupt(GPIO_USB_C0_PPC_FAULT_ODL);
	gpio_enable_interrupt(GPIO_USB_C1_PPC_INT_ODL);

	/* Enable TCPC interrupts. */
	gpio_enable_interrupt(GPIO_USB_C0_TCPC_INT_ODL);
	gpio_enable_interrupt(GPIO_USB_C1_TCPC_INT_ODL);

	/* Enable BC 1.2 interrupts */
	gpio_enable_interrupt(GPIO_USB_C0_BC12_INT_ODL);
	gpio_enable_interrupt(GPIO_USB_C1_BC12_INT_ODL);
}
DECLARE_HOOK(HOOK_INIT, baseboard_tcpc_init, HOOK_PRIO_INIT_I2C + 1);

/*
 * In the AOZ1380 PPC, there are no programmable features.  We use
 * the attached NCT3807 to control a GPIO to indicate 1A5 or 3A0
 * current limits.
 */
int board_aoz1380_set_vbus_source_current_limit(int port,
						enum tcpc_rp_value rp)
{
	int rv;

	/* Use the TCPC to set the current limit */
	rv = ioex_set_level(IOEX_USB_C0_PPC_ILIM_3A_EN,
			    (rp == TYPEC_RP_3A0) ? 1 : 0);

	return rv;
}

int board_tcpc_fast_role_swap_enable(int port, int enable)
{
	int rv = EC_SUCCESS;

	/* Use the TCPC to enable fast switch when FRS included */
	if (port == USBC_PORT_C0) {
		rv = ioex_set_level(IOEX_USB_C0_TCPC_FASTSW_CTL_EN,
				    !!enable);
	} else {
		rv = ioex_set_level(IOEX_USB_C1_TCPC_FASTSW_CTL_EN,
				    !!enable);
	}

	return rv;
}

static void reset_pd_port(int port, enum gpio_signal reset_gpio_l,
			  int hold_delay, int finish_delay)
{
	gpio_set_level(reset_gpio_l, 0);
	msleep(hold_delay);
	gpio_set_level(reset_gpio_l, 1);
	if (finish_delay)
		msleep(finish_delay);
}

void board_reset_pd_mcu(void)
{
	/* Reset TCPC0 */
	reset_pd_port(USBC_PORT_C0, GPIO_USB_C0_TCPC_RST_L,
		      NCT38XX_RESET_HOLD_DELAY_MS,
		      NCT38XX_RESET_POST_DELAY_MS);

	/* Reset TCPC1 */
	reset_pd_port(USBC_PORT_C1, GPIO_USB_C1_TCPC_RST_L,
		      NCT38XX_RESET_HOLD_DELAY_MS,
		      NCT38XX_RESET_POST_DELAY_MS);
}

uint16_t tcpc_get_alert_status(void)
{
	uint16_t status = 0;

	/*
	 * Check which port has the ALERT line set and ignore if that TCPC has
	 * its reset line active.
	 */
	if (!gpio_get_level(GPIO_USB_C0_TCPC_INT_ODL)) {
		if (gpio_get_level(GPIO_USB_C0_TCPC_RST_L) != 0)
			status |= PD_STATUS_TCPC_ALERT_0;
	}

	if (!gpio_get_level(GPIO_USB_C1_TCPC_INT_ODL)) {
		if (gpio_get_level(GPIO_USB_C1_TCPC_RST_L) != 0)
			status |= PD_STATUS_TCPC_ALERT_1;
	}

	return status;
}

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

	switch (signal) {
	case GPIO_USB_C0_TCPC_INT_ODL:
		port = 0;
		break;
	case GPIO_USB_C1_TCPC_INT_ODL:
		port = 1;
		break;
	default:
		return;
	}

	schedule_deferred_pd_interrupt(port);
}

void bc12_interrupt(enum gpio_signal signal)
{
	switch (signal) {
	case GPIO_USB_C0_BC12_INT_ODL:
		task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12, 0);
		break;

	case GPIO_USB_C1_BC12_INT_ODL:
		task_set_event(TASK_ID_USB_CHG_P1, USB_CHG_EVENT_BC12, 0);
		break;

	default:
		break;
	}
}

/*****************************************************************************
 * Custom Zork USB-C1 Retimer/MUX driver
 */

/*
 * PS8802 set mux tuning.
 * Adds in board specific gain and DP lane count configuration
 */
static int ps8802_tune_mux(int port, mux_state_t mux_state)
{
	int rv = EC_SUCCESS;

	/* USB specific config */
	if (mux_state & USB_PD_MUX_USB_ENABLED) {
		/* Boost the USB gain */
		rv = ps8802_i2c_field_update16(port,
					PS8802_REG_PAGE2,
					PS8802_REG2_USB_SSEQ_LEVEL,
					PS8802_USBEQ_LEVEL_UP_MASK,
					PS8802_USBEQ_LEVEL_UP_20DB);
		if (rv)
			return rv;

		rv = ps8802_i2c_field_update16(port,
					PS8802_REG_PAGE2,
					PS8802_REG2_USB_CEQ_LEVEL,
					PS8802_USBEQ_LEVEL_UP_MASK,
					PS8802_USBEQ_LEVEL_UP_20DB);
		if (rv)
			return rv;
	}

	/* DP specific config */
	if (mux_state & USB_PD_MUX_DP_ENABLED) {
		int val;

		/* Boost the DP gain */
		rv = ps8802_i2c_field_update8(port,
					PS8802_REG_PAGE2,
					PS8802_REG2_DPEQ_LEVEL,
					PS8802_DPEQ_LEVEL_UP_MASK,
					PS8802_DPEQ_LEVEL_UP_20DB);
		if (rv)
			return rv;

		/* Set DP lane count */
		val = (mux_state & USB_PD_MUX_USB_ENABLED)
				? PS8802_LANE_COUNT_SET_2_LANE
				: PS8802_LANE_COUNT_SET_4_LANE;

		rv = ps8802_i2c_field_update8(port,
					PS8802_REG_PAGE1,
					PS8802_REG1_LANE_COUNT_SET,
					PS8802_LANE_COUNT_SET_MASK,
					val);
		if (rv)
			return rv;
	}

	return rv;
}

/*
 * PS8818 set mux tuning.
 * Adds in board specific gain and DP lane count configuration
 */
static int ps8818_tune_mux(int port, mux_state_t mux_state)
{
	int rv = EC_SUCCESS;

	/* USB specific config */
	if (mux_state & USB_PD_MUX_USB_ENABLED) {
		/* Boost the USB gain */
		rv = ps8818_i2c_field_update8(port,
					PS8818_REG_PAGE1,
					PS8818_REG1_APTX1EQ_10G_LEVEL,
					PS8818_EQ_LEVEL_UP_MASK,
					PS8818_EQ_LEVEL_UP_21DB);
		if (rv)
			return rv;

		rv = ps8818_i2c_field_update8(port,
					PS8818_REG_PAGE1,
					PS8818_REG1_APTX2EQ_10G_LEVEL,
					PS8818_EQ_LEVEL_UP_MASK,
					PS8818_EQ_LEVEL_UP_21DB);
		if (rv)
			return rv;

		rv = ps8818_i2c_field_update8(port,
					PS8818_REG_PAGE1,
					PS8818_REG1_APTX1EQ_5G_LEVEL,
					PS8818_EQ_LEVEL_UP_MASK,
					PS8818_EQ_LEVEL_UP_21DB);
		if (rv)
			return rv;

		rv = ps8818_i2c_field_update8(port,
					PS8818_REG_PAGE1,
					PS8818_REG1_APTX2EQ_5G_LEVEL,
					PS8818_EQ_LEVEL_UP_MASK,
					PS8818_EQ_LEVEL_UP_21DB);
		if (rv)
			return rv;

		rv = ps8818_i2c_field_update8(port,
					PS8818_REG_PAGE1,
					PS8818_REG1_CRX1EQ_10G_LEVEL,
					PS8818_EQ_LEVEL_UP_MASK,
					PS8818_EQ_LEVEL_UP_21DB);
		if (rv)
			return rv;

		rv = ps8818_i2c_field_update8(port,
					PS8818_REG_PAGE1,
					PS8818_REG1_CRX2EQ_10G_LEVEL,
					PS8818_EQ_LEVEL_UP_MASK,
					PS8818_EQ_LEVEL_UP_21DB);
		if (rv)
			return rv;

		rv = ps8818_i2c_field_update8(port,
					PS8818_REG_PAGE1,
					PS8818_REG1_CRX1EQ_5G_LEVEL,
					PS8818_EQ_LEVEL_UP_MASK,
					PS8818_EQ_LEVEL_UP_21DB);
		if (rv)
			return rv;

		rv = ps8818_i2c_field_update8(port,
					PS8818_REG_PAGE1,
					PS8818_REG1_CRX2EQ_5G_LEVEL,
					PS8818_EQ_LEVEL_UP_MASK,
					PS8818_EQ_LEVEL_UP_21DB);
		if (rv)
			return rv;
	}

	/* DP specific config */
	if (mux_state & USB_PD_MUX_DP_ENABLED) {
		int val;

		/* Boost the DP gain */
		rv = ps8818_i2c_field_update8(port,
					PS8818_REG_PAGE1,
					PS8818_REG1_DPEQ_LEVEL,
					PS8818_DPEQ_LEVEL_UP_MASK,
					PS8818_DPEQ_LEVEL_UP_21DB);
		if (rv)
			return rv;

		/* Set DP lane count */
		val = (mux_state & USB_PD_MUX_USB_ENABLED)
				? PS8818_LANE_COUNT_SET_2_LANE
				: PS8818_LANE_COUNT_SET_4_LANE;

		rv = ps8818_i2c_field_update8(port,
					PS8818_REG_PAGE2,
					PS8818_REG2_LANE_COUNT_SET,
					PS8818_LANE_COUNT_SET_MASK,
					val);
		if (rv)
			return rv;
	}

	return rv;
}

/*
 * FP5 is a true MUX but being used as a secondary MUX. Don't want to
 * send FLIP or this will cause a double flip
 */
static int zork_c1_retimer_set_mux(int port, mux_state_t mux_state)
{
	return amd_fp5_usb_retimer.set(port,
				mux_state & ~USB_PD_MUX_POLARITY_INVERTED);
}

const struct usb_retimer_driver zork_c1_usb_retimer = {
	/* Secondary MUX/Retimer only needs the set mux interface */
	.set = zork_c1_retimer_set_mux,
};

struct usb_retimer usb_retimers[] = {
	[USBC_PORT_C0] = {
		.driver = &pi3dpx1207_usb_retimer,
		.i2c_port = I2C_PORT_TCPC0,
		.i2c_addr_flags = PI3DPX1207_I2C_ADDR_FLAGS,
	},
	[USBC_PORT_C1] = {
		/*
		 * The driver is left off until we detect the
		 * hardware present. Once the hardware has been
		 * detected, the driver will be set to the
		 * detected hardware driver table.
		 */
		.i2c_port = I2C_PORT_TCPC1,
	},
};
BUILD_ASSERT(ARRAY_SIZE(usb_retimers) == USBC_PORT_COUNT);

/*
 * To support both OPT1 DB with PS8818 retimer, and OPT3 DB with PS8802
 * retimer,  Try both, and remember the first one that succeeds.
 *
 * TODO(b:147593660) Cleanup of retimers as muxes in a more
 * generalized mechanism
 */
enum zork_c1_retimer zork_c1_retimer = C1_RETIMER_UNKNOWN;
static int zork_c1_detect(int port, int err_if_power_off)
{
	int rv;

	/*
	 * Retimers are not powered in G3 so return success if setting mux to
	 * none and error otherwise.
	 */
	if (chipset_in_state(CHIPSET_STATE_HARD_OFF))
		return (err_if_power_off) ? EC_ERROR_NOT_POWERED
					  : EC_SUCCESS;

	/*
	 * Identifying a PS8818 is faster than the PS8802,
	 * so do it first.
	 */
	usb_retimers[port].i2c_addr_flags = PS8818_I2C_ADDR_FLAGS;
	rv = ps8818_detect(port);
	if (rv == EC_SUCCESS) {
		zork_c1_retimer = C1_RETIMER_PS8818;
		ccprints("C1 PS8818 detected");

		/* Main MUX is FP5, secondary MUX is PS8818 */
		usb_muxes[USBC_PORT_C1].driver = &amd_fp5_usb_mux_driver;
		usb_retimers[USBC_PORT_C1].driver = &ps8818_usb_retimer;
		usb_retimers[USBC_PORT_C1].tune = &ps8818_tune_mux;
		return rv;
	}

	usb_retimers[port].i2c_addr_flags = PS8802_I2C_ADDR_FLAGS;
	rv = ps8802_detect(port);
	if (rv == EC_SUCCESS) {
		zork_c1_retimer = C1_RETIMER_PS8802;
		ccprints("C1 PS8802 detected");

		/* Main MUX is PS8802, secondary MUX is modified FP5 */
		usb_muxes[USBC_PORT_C1].driver = &ps8802_usb_mux_driver;
		usb_retimers[USBC_PORT_C1].driver = &zork_c1_usb_retimer;
		usb_retimers[USBC_PORT_C1].tune = &ps8802_tune_mux;
	}

	return rv;
}

/*
 * We start off not sure which configuration we are using.  We set
 * the interface to be this special primary MUX driver in order to
 * determine the actual hardware and then we patch the jump tables
 * to go to the actual drivers instead.
 */
static int zork_c1_init_mux(int port)
{
	/* Try to detect, but don't give an error if no power */
	return zork_c1_detect(port, 0);
}

static int zork_c1_set_mux(int port, mux_state_t mux_state)
{
	int rv;

	/*
	 * Try to detect, give an error if we are setting to a
	 * MUX value that is not NONE when we have no power.
	 */
	rv = zork_c1_detect(port, mux_state != USB_PD_MUX_NONE);
	if (rv)
		return rv;

	/*
	 * If we detected the hardware, then call the real routine.
	 * We only do this one time, after that time we will go direct
	 * and avoid this special driver.
	 */
	if (zork_c1_retimer != C1_RETIMER_UNKNOWN)
		rv = usb_muxes[port].driver->set(port, mux_state);

	return rv;
}

static int zork_c1_get_mux(int port, mux_state_t *mux_state)
{
	int rv;

	/* Try to detect the hardware */
	rv = zork_c1_detect(port, 1);
	if (rv) {
		/*
		 * Not powered is MUX_NONE, so change the values
		 * and make it a good status
		 */
		if (rv == EC_ERROR_NOT_POWERED) {
			*mux_state = USB_PD_MUX_NONE;
			rv = EC_SUCCESS;
		}
		return rv;
	}

	/*
	 * If we detected the hardware, then call the real routine.
	 * We only do this one time, after that time we will go direct
	 * and avoid this special driver.
	 */
	if (zork_c1_retimer != C1_RETIMER_UNKNOWN)
		rv = usb_muxes[port].driver->get(port, mux_state);

	return rv;
}

const struct pi3dpx1207_usb_control pi3dpx1207_controls[] = {
	[USBC_PORT_C0] = {
		.enable_gpio = IOEX_USB_C0_DATA_EN,
		.dp_enable_gpio = GPIO_USB_C0_IN_HPD,
	},
	[USBC_PORT_C1] = {
	},
};
BUILD_ASSERT(ARRAY_SIZE(pi3dpx1207_controls) == USBC_PORT_COUNT);

const struct usb_mux_driver zork_c1_usb_mux_driver = {
	.init = zork_c1_init_mux,
	.set = zork_c1_set_mux,
	.get = zork_c1_get_mux,
};

struct usb_mux usb_muxes[] = {
	[USBC_PORT_C0] = {
		.driver = &amd_fp5_usb_mux_driver,
	},
	[USBC_PORT_C1] = {
		/*
		 * This is the detection driver. Once the hardware
		 * has been detected, the driver will change to the
		 * detected hardware driver table.
		 */
		.driver = &zork_c1_usb_mux_driver,
	},
};
BUILD_ASSERT(ARRAY_SIZE(usb_muxes) == USBC_PORT_COUNT);

struct ioexpander_config_t ioex_config[] = {
	[USBC_PORT_C0] = {
		.i2c_host_port = I2C_PORT_TCPC0,
		.i2c_slave_addr = NCT38XX_I2C_ADDR1_1_FLAGS,
		.drv = &nct38xx_ioexpander_drv,
	},
	[USBC_PORT_C1] = {
		.i2c_host_port = I2C_PORT_TCPC1,
		.i2c_slave_addr = NCT38XX_I2C_ADDR1_1_FLAGS,
		.drv = &nct38xx_ioexpander_drv,
	},
};
BUILD_ASSERT(ARRAY_SIZE(ioex_config) == USBC_PORT_COUNT);
BUILD_ASSERT(CONFIG_IO_EXPANDER_PORT_COUNT == USBC_PORT_COUNT);

const int usb_port_enable[USB_PORT_COUNT] = {
	IOEX_EN_USB_A0_5V,
	IOEX_EN_USB_A1_5V_DB,
};

static void baseboard_chipset_suspend(void)
{
	/* Disable display and keyboard backlights. */
	gpio_set_level(GPIO_ENABLE_BACKLIGHT_L, 1);
	ioex_set_level(IOEX_KB_BL_EN, 0);
}
DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, baseboard_chipset_suspend,
	     HOOK_PRIO_DEFAULT);

static void baseboard_chipset_resume(void)
{
	/* Enable display and keyboard backlights. */
	gpio_set_level(GPIO_ENABLE_BACKLIGHT_L, 0);
	ioex_set_level(IOEX_KB_BL_EN, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_RESUME, baseboard_chipset_resume, HOOK_PRIO_DEFAULT);

void board_set_charge_limit(int port, int supplier, int charge_ma,
			    int max_ma, int charge_mv)
{
	charge_set_input_current_limit(MAX(charge_ma,
					   CONFIG_CHARGER_INPUT_CURRENT),
				       charge_mv);
}

/* Keyboard scan setting */
struct keyboard_scan_config keyscan_config = {
	/* Extra delay when KSO2 is tied to Cr50. */
	.output_settle_us = 60,
	.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)
{
	int mv;
	int temp_c;
	enum adc_channel channel;

	/* idx is the sensor index set below in temp_sensors[] */
	switch (idx) {
	case TEMP_SENSOR_CHARGER:
		/* TODO: b/143598098
		 * Revision 1.6 of the schematic will put this
		 * thermistor on power rail EC_A instead of
		 * PP3300_A.  This will make the charger circuit
		 * temperature available even when the AP is not
		 * powered and the check will no longer be needed
		 */

		/* thermistor is not powered in G3 */
		if (chipset_in_state(CHIPSET_STATE_HARD_OFF))
			return EC_ERROR_NOT_POWERED;

		channel = ADC_TEMP_SENSOR_CHARGER;
		break;
	case TEMP_SENSOR_SOC:
		/* thermistor is not powered in G3 */
		if (chipset_in_state(CHIPSET_STATE_HARD_OFF))
			return EC_ERROR_NOT_POWERED;

		channel = ADC_TEMP_SENSOR_SOC;
		break;
	default:
		return EC_ERROR_INVAL;
	}

	mv = adc_read_channel(channel);
	if (mv < 0)
		return EC_ERROR_INVAL;

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

const struct temp_sensor_t temp_sensors[] = {
	[TEMP_SENSOR_CHARGER] = {
		.name = "Charger",
		.type = TEMP_SENSOR_TYPE_BOARD,
		.read = board_get_temp,
		.idx = TEMP_SENSOR_CHARGER,
		.action_delay_sec = 1,
	},
	[TEMP_SENSOR_SOC] = {
		.name = "SOC",
		.type = TEMP_SENSOR_TYPE_BOARD,
		.read = board_get_temp,
		.idx = TEMP_SENSOR_SOC,
		.action_delay_sec = 5,
	},
	[TEMP_SENSOR_CPU] = {
		.name = "CPU",
		.type = TEMP_SENSOR_TYPE_CPU,
		.read = sb_tsi_get_val,
		.idx = 0,
		.action_delay_sec = 4,
	},
};
BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);

const static struct ec_thermal_config thermal_thermistor = {
	.temp_host = {
		[EC_TEMP_THRESH_HIGH] = C_TO_K(75),
		[EC_TEMP_THRESH_HALT] = C_TO_K(80),
	},
	.temp_host_release = {
		[EC_TEMP_THRESH_HIGH] = C_TO_K(65),
	},
	.temp_fan_off = C_TO_K(25),
	.temp_fan_max = C_TO_K(50),
};

const static struct ec_thermal_config thermal_cpu = {
	.temp_host = {
		[EC_TEMP_THRESH_HIGH] = C_TO_K(85),
		[EC_TEMP_THRESH_HALT] = C_TO_K(95),
	},
	.temp_host_release = {
		[EC_TEMP_THRESH_HIGH] = C_TO_K(65),
	},
	.temp_fan_off = C_TO_K(25),
	.temp_fan_max = C_TO_K(50),
};

struct ec_thermal_config thermal_params[TEMP_SENSOR_COUNT];

static void setup_fans(void)
{
	thermal_params[TEMP_SENSOR_CHARGER] = thermal_thermistor;
	thermal_params[TEMP_SENSOR_SOC] = thermal_thermistor;
	thermal_params[TEMP_SENSOR_CPU] = thermal_cpu;
}

#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 bmi160_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 = BMI160_ACCEL_MIN_FREQ,
	 .max_frequency = BMI160_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 = BMI160_GYRO_MIN_FREQ,
	 .max_frequency = BMI160_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

/* Unprovisioned magic value. */
static uint32_t sku_id = 0x7fffffff;

static void cbi_init(void)
{
	uint32_t board_version = 0;
	uint32_t val;

	if (cbi_get_board_version(&val) == EC_SUCCESS)
		board_version = val;
	ccprints("Board Version: %d (0x%x)", board_version, board_version);

	if (cbi_get_sku_id(&val) == EC_SUCCESS)
		sku_id = val;
	ccprints("SKU: %d (0x%x)", sku_id, sku_id);

#ifdef HAS_TASK_MOTIONSENSE
	board_update_sensor_config_from_sku();
#endif

}
DECLARE_HOOK(HOOK_INIT, cbi_init, HOOK_PRIO_INIT_I2C + 1);

uint32_t system_get_sku_id(void)
{
	return sku_id;
}

/*
 * Returns 1 for boards that are convertible into tablet mode, and zero for
 * clamshells.
 */
int board_is_convertible(void)
{
	/* TODO: Add convertible SKU values */
	return 0;
}

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

void board_overcurrent_event(int port, int is_overcurrented)
{
	switch (port) {
	case USBC_PORT_C0:
		ioex_set_level(IOEX_USB_C0_FAULT_ODL, !is_overcurrented);
		break;

	case USBC_PORT_C1:
		ioex_set_level(IOEX_USB_C1_FAULT_ODL, !is_overcurrented);
		break;

	default:
		break;
	}
}

static void baseboard_init(void)
{
	/* Initialize Fans */
	setup_fans();
}
DECLARE_HOOK(HOOK_INIT, baseboard_init, HOOK_PRIO_DEFAULT);

void board_hibernate(void)
{
	int port;

	/*
	 * If we are charging, then drop the Vbus level down to 5V to ensure
	 * that we don't get locked out of the 6.8V OVLO for our PPCs in
	 * dead-battery mode. This is needed when the TCPC/PPC rails go away.
	 * (b/79218851, b/143778351, b/147007265)
	 */
	port = charge_manager_get_active_charge_port();
	if (port != CHARGE_PORT_NONE) {
		pd_request_source_voltage(port, SAFE_RESET_VBUS_MV);

		/* Give PD task and PPC chip time to get to 5V */
		msleep(300);
	}
}