path: root/board/rammus/board.c

/* 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.
 */

/* Rammus board-specific configuration */

#include "adc.h"
#include "adc_chip.h"
#include "anx7447.h"
#include "bd99992gw.h"
#include "board_config.h"
#include "button.h"
#include "cbi_ssfc.h"
#include "charge_manager.h"
#include "charge_state.h"
#include "charge_ramp.h"
#include "charger.h"
#include "chipset.h"
#include "console.h"
#include "cros_board_info.h"
#include "driver/accelgyro_bmi160.h"
#include "driver/accelgyro_icm_common.h"
#include "driver/accelgyro_icm426xx.h"
#include "driver/accel_bma2x2.h"
#include "driver/accel_kionix.h"
#include "driver/accel_kx022.h"
#include "driver/tcpm/ps8xxx.h"
#include "driver/tcpm/tcpci.h"
#include "driver/tcpm/tcpm.h"
#include "driver/temp_sensor/bd99992gw.h"
#include "extpower.h"
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
#include "i2c.h"
#include "keyboard_scan.h"
#include "lid_switch.h"
#include "math_util.h"
#include "motion_lid.h"
#include "motion_sense.h"
#include "pi3usb9281.h"
#include "power.h"
#include "power_button.h"
#include "pwm.h"
#include "pwm_chip.h"
#include "spi.h"
#include "switch.h"
#include "system.h"
#include "tablet_mode.h"
#include "task.h"
#include "temp_sensor.h"
#include "timer.h"
#include "uart.h"
#include "usb_charge.h"
#include "usb_mux.h"
#include "usb_pd.h"
#include "usb_pd_tcpm.h"
#include "util.h"
#include "espi.h"

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

#define USB_PD_PORT_PS8751	1
#define USB_PD_PORT_ANX7447	0
#define SKU_ID_MASK_CONVERTIBLE(id) ((id >> 9) & 1)

static 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);
}

/* Set PD discharge whenever VBUS detection is high (i.e. below threshold). */
static void vbus_discharge_handler(void)
{
	pd_set_vbus_discharge(0, gpio_get_level(GPIO_USB_C0_VBUS_DET_L));
	pd_set_vbus_discharge(1, gpio_get_level(GPIO_USB_C1_VBUS_DET_L));
}
DECLARE_DEFERRED(vbus_discharge_handler);

void vbus0_evt(enum gpio_signal signal)
{
	/* VBUS present GPIO is inverted */
	usb_charger_vbus_change(0, !gpio_get_level(signal));
	task_wake(TASK_ID_PD_C0);
	hook_call_deferred(&vbus_discharge_handler_data, 0);
}

void vbus1_evt(enum gpio_signal signal)
{
	/* VBUS present GPIO is inverted */
	usb_charger_vbus_change(1, !gpio_get_level(signal));
	task_wake(TASK_ID_PD_C1);
	hook_call_deferred(&vbus_discharge_handler_data, 0);
}

void usb0_evt(enum gpio_signal signal)
{
	task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12, 0);
}

void usb1_evt(enum gpio_signal signal)
{
	task_set_event(TASK_ID_USB_CHG_P1, USB_CHG_EVENT_BC12, 0);
}

#include "gpio_list.h"

/* power signal list.  Must match order of enum power_signal. */
const struct power_signal_info power_signal_list[] = {
#ifdef CONFIG_POWER_S0IX
	{GPIO_PCH_SLP_S0_L,
		POWER_SIGNAL_ACTIVE_HIGH | POWER_SIGNAL_DISABLE_AT_BOOT,
		"SLP_S0_DEASSERTED"},
#endif
	{VW_SLP_S3_L,		POWER_SIGNAL_ACTIVE_HIGH, "SLP_S3_DEASSERTED"},
	{VW_SLP_S4_L,		POWER_SIGNAL_ACTIVE_HIGH, "SLP_S4_DEASSERTED"},
	{GPIO_PCH_SLP_SUS_L,	POWER_SIGNAL_ACTIVE_HIGH, "SLP_SUS_DEASSERTED"},
	{GPIO_RSMRST_L_PGOOD,	POWER_SIGNAL_ACTIVE_HIGH, "RSMRST_L_PGOOD"},
	{GPIO_PMIC_DPWROK,	POWER_SIGNAL_ACTIVE_HIGH, "PMIC_DPWROK"},
};
BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);

/* Hibernate wake configuration */
const enum gpio_signal hibernate_wake_pins[] = {
	GPIO_AC_PRESENT,
	GPIO_LID_OPEN,
	GPIO_POWER_BUTTON_L,
};
const int hibernate_wake_pins_used = ARRAY_SIZE(hibernate_wake_pins);

/* ADC channels */
const struct adc_t adc_channels[] = {
	/* Vbus sensing (10x voltage divider). */
	[ADC_VBUS] = {"VBUS", NPCX_ADC_CH2, ADC_MAX_VOLT*10, ADC_READ_MAX+1, 0},
	/*
	 * Adapter current output or battery charging/discharging current (uV)
	 * 18x amplification on charger side.
	 */
	[ADC_AMON_BMON] = {"AMON_BMON", NPCX_ADC_CH1, ADC_MAX_VOLT*1000/18,
			   ADC_READ_MAX+1, 0},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);

/* I2C port map */
const struct i2c_port_t i2c_ports[]  = {
	{"i2c_0_0", NPCX_I2C_PORT0_0, 400, GPIO_I2C0_0_SCL, GPIO_I2C0_0_SDA},
	{"i2c_0_1", NPCX_I2C_PORT0_1, 400, GPIO_I2C0_1_SCL, GPIO_I2C0_1_SDA},
	{"i2c_1",   NPCX_I2C_PORT1,   100, GPIO_I2C1_SCL,   GPIO_I2C1_SDA},
	{"i2c_2",   NPCX_I2C_PORT2,   400, GPIO_I2C2_SCL,   GPIO_I2C2_SDA},
	{"i2c_3",   NPCX_I2C_PORT3,   400, GPIO_I2C3_SCL,   GPIO_I2C3_SDA},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);

/* TCPC mux configuration */
struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = {
	[USB_PD_PORT_PS8751] = {
		.i2c_host_port = I2C_PORT_TCPC1,
		.i2c_slave_addr = PS8751_I2C_ADDR1,
		.drv = &ps8xxx_tcpm_drv,
		.pol = TCPC_ALERT_ACTIVE_LOW,
	},
	[USB_PD_PORT_ANX7447] = {
		.i2c_host_port = I2C_PORT_TCPC0,
		.i2c_slave_addr = AN7447_TCPC3_I2C_ADDR, /* Verified on v1.1 */
		.drv = &anx7447_tcpm_drv,
		.pol = TCPC_ALERT_ACTIVE_LOW,
	},
};

struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = {
	[USB_PD_PORT_PS8751] = {
		.driver = &tcpci_tcpm_usb_mux_driver,
		.hpd_update = &ps8xxx_tcpc_update_hpd_status,
	},
	[USB_PD_PORT_ANX7447] = {
		.driver = &anx7447_usb_mux_driver,
		.hpd_update = &anx7447_tcpc_update_hpd_status,
	}
};

struct pi3usb9281_config pi3usb9281_chips[] = {
	[USB_PD_PORT_PS8751] = {
		.i2c_port = I2C_PORT_USB_CHARGER_1,
		.mux_lock = NULL,
	},
	[USB_PD_PORT_ANX7447] = {
		.i2c_port = I2C_PORT_USB_CHARGER_0,
		.mux_lock = NULL,
	},
};
BUILD_ASSERT(ARRAY_SIZE(pi3usb9281_chips) ==
	     CONFIG_BC12_DETECT_PI3USB9281_CHIP_COUNT);

const int usb_port_enable[CONFIG_USB_PORT_POWER_SMART_PORT_COUNT] = {
	GPIO_EN_USB_A_5V,
};

void board_reset_pd_mcu(void)
{
	/* Assert reset */
	gpio_set_level(GPIO_USB_PD_RST_C0, 1);
	gpio_set_level(GPIO_USB_C1_PD_RST_ODL, 0);
	msleep(1);
	gpio_set_level(GPIO_USB_PD_RST_C0, 0);
	gpio_set_level(GPIO_USB_C1_PD_RST_ODL, 1);
	/* After TEST_R release, anx7447/3447 needs 2ms to finish eFuse
	 * loading.
	 */
	msleep(2);
}

/*
 * Read CBI data from EEPROM via i2c and remap the ps8751 i2c port
 */
static void ps8751_i2c_remap(void)
{
	uint32_t board_version;

	if (cbi_get_board_version(&board_version) != EC_SUCCESS ||
		board_version > 1)
		return;
	/*
	 * Due to b/118063849, we separate the ps8751 and anx3447 to
	 * different i2c bus which start from board_version >= 2.
	 * For the board_version <= 1, the ps8751 and anx3447 TCPC
	 * use the same i2c bus. Thus, reconfig the ps8751 i2c port
	 * to i2c_0_0.
	 */
	tcpc_config[USB_PD_PORT_PS8751].i2c_host_port = I2C_PORT_TCPC0;
}

static void board_sku_init(void)
{
	uint32_t sku_id;

	cbi_get_sku_id(&sku_id);
	if (SKU_ID_MASK_CONVERTIBLE(sku_id))
		gpio_set_level(GPIO_EN_PP1800_DX_SENSOR, 1);
	else {
		gpio_set_level(GPIO_EN_PP1800_DX_SENSOR, 0);
		motion_sensor_count = 0;
		tablet_set_mode(0);
	}
	CPRINTS("Motion Sensor Count: %d", motion_sensor_count);
}

void board_tcpc_init(void)
{
	int port;

	ps8751_i2c_remap();

	/* Only reset TCPC if not sysjump */
	if (!system_jumped_to_this_image()) {
		board_reset_pd_mcu();
	}

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

	/*
	 * Initialize HPD to low; after sysjump SOC needs to see
	 * HPD pulse to enable video path
	 */
	for (port = 0; port < CONFIG_USB_PD_PORT_COUNT; port++) {
		const struct usb_mux *mux = &usb_muxes[port];
		mux->hpd_update(port, 0, 0);
	}

	/* Enable sensors power supply */
	board_sku_init();
}
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)) {
		if (!gpio_get_level(GPIO_USB_PD_RST_C0))
			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_ODL))
			status |= PD_STATUS_TCPC_ALERT_1;
	}

	return status;
}

const struct temp_sensor_t temp_sensors[] = {
	{"Battery", TEMP_SENSOR_TYPE_BATTERY, charge_get_battery_temp, 0, 4},

	/* These BD99992GW temp sensors are only readable in S0 */
	{"Ambient", TEMP_SENSOR_TYPE_BOARD, bd99992gw_get_val,
	 BD99992GW_ADC_CHANNEL_SYSTHERM0, 4},
	{"Charger", TEMP_SENSOR_TYPE_BOARD, bd99992gw_get_val,
	 BD99992GW_ADC_CHANNEL_SYSTHERM1, 4},
	{"DRAM", TEMP_SENSOR_TYPE_BOARD, bd99992gw_get_val,
	 BD99992GW_ADC_CHANNEL_SYSTHERM2, 4},
	{"eMMC", TEMP_SENSOR_TYPE_BOARD, bd99992gw_get_val,
	 BD99992GW_ADC_CHANNEL_SYSTHERM3, 4},
};
BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);

/*
 * Check if PMIC fault registers indicate VR fault. If yes, print out fault
 * register info to console. Additionally, set panic reason so that the OS can
 * check for fault register info by looking at offset 0x14(PWRSTAT1) and
 * 0x15(PWRSTAT2) in cros ec panicinfo.
 */
static void board_report_pmic_fault(const char *str)
{
	int vrfault, pwrstat1 = 0, pwrstat2 = 0;
	uint32_t info;

	/* RESETIRQ1 -- Bit 4: VRFAULT */
	if (i2c_read8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x8, &vrfault)
	    != EC_SUCCESS)
		return;

	if (!(vrfault & (1 << 4)))
		return;

	/* VRFAULT has occurred, print VRFAULT status bits. */

	/* PWRSTAT1 */
	i2c_read8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x16, &pwrstat1);

	/* PWRSTAT2 */
	i2c_read8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x17, &pwrstat2);

	CPRINTS("PMIC VRFAULT: %s", str);
	CPRINTS("PMIC VRFAULT: PWRSTAT1=0x%02x PWRSTAT2=0x%02x", pwrstat1,
		pwrstat2);

	/* Clear all faults -- Write 1 to clear. */
	i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x8, (1 << 4));
	i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x16, pwrstat1);
	i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x17, pwrstat2);

	/*
	 * Status of the fault registers can be checked in the OS by looking at
	 * offset 0x14(PWRSTAT1) and 0x15(PWRSTAT2) in cros ec panicinfo.
	 */
	info = ((pwrstat2 & 0xFF) << 8) | (pwrstat1 & 0xFF);
	panic_set_reason(PANIC_SW_PMIC_FAULT, info, 0);
}

static void board_pmic_disable_slp_s0_vr_decay(void)
{
	/*
	 * VCCIOCNT:
	 * Bit 6    (0)   - Disable decay of VCCIO on SLP_S0# assertion
	 * Bits 5:4 (11)  - Nominal output voltage: 0.850V
	 * Bits 3:2 (10)  - VR set to AUTO on SLP_S0# de-assertion
	 * Bits 1:0 (10)  - VR set to AUTO operating mode
	 */
	i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x30, 0x3a);

	/*
	 * V18ACNT:
	 * Bits 7:6 (00) - Disable low power mode on SLP_S0# assertion
	 * Bits 5:4 (10) - Nominal voltage set to 1.8V
	 * Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
	 * Bits 1:0 (10) - VR set to AUTO operating mode
	 */
	i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x34, 0x2a);

	/*
	 * V085ACNT:
	 * Bits 7:6 (00) - Disable low power mode on SLP_S0# assertion
	 * Bits 5:4 (11) - Nominal voltage 1.0V
	 * Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
	 * Bits 1:0 (10) - VR set to AUTO operating mode
	 */
	i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x38, 0x3a);
}

static void board_pmic_enable_slp_s0_vr_decay(void)
{
	/*
	 * VCCIOCNT:
	 * Bit 6    (1)   - Enable decay of VCCIO on SLP_S0# assertion
	 * Bits 5:4 (11)  - Nominal output voltage: 0.850V
	 * Bits 3:2 (10)  - VR set to AUTO on SLP_S0# de-assertion
	 * Bits 1:0 (10)  - VR set to AUTO operating mode
	 */
	i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x30, 0x7a);

	/*
	 * V18ACNT:
	 * Bits 7:6 (01) - Enable low power mode on SLP_S0# assertion
	 * Bits 5:4 (10) - Nominal voltage set to 1.8V
	 * Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
	 * Bits 1:0 (10) - VR set to AUTO operating mode
	 */
	i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x34, 0x6a);

	/*
	 * V085ACNT:
	 * Bits 7:6 (01) - Enable low power mode on SLP_S0# assertion
	 * Bits 5:4 (11) - Nominal voltage 1.0V
	 * Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
	 * Bits 1:0 (10) - VR set to AUTO operating mode
	 */
	i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x38, 0x7a);
}

void power_board_handle_host_sleep_event(enum host_sleep_event state)
{
	if (state == HOST_SLEEP_EVENT_S0IX_SUSPEND)
		board_pmic_enable_slp_s0_vr_decay();
	else if (state == HOST_SLEEP_EVENT_S0IX_RESUME)
		board_pmic_disable_slp_s0_vr_decay();
}

static void board_pmic_init(void)
{
	board_report_pmic_fault("SYSJUMP");

	if (system_jumped_to_this_image())
		return;

	/*
	 * DISCHGCNT2 - enable 100 ohm discharge on
	 * V5A_DS3/V33A_DSW/V33A_PCH/V1.8A
	 */
	i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x3d, 0x55);
	/* DISCHGCNT3 - enable 100 ohm discharge on V1.8U_25U/V1.00A */
	i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x3e, 0x44);
	/* DISCHGCNT4 - enable 100 ohm discharge on v1.8S */
	i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x3f, 0x04);

	board_pmic_disable_slp_s0_vr_decay();

	/* VRMODECTRL - disable low-power mode for all rails */
	i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x3b, 0x1f);
}
DECLARE_DEFERRED(board_pmic_init);

/* Initialize board. */
static void board_init(void)
{
	/*
	 * This enables pull-down on F_DIO1 (SPI MISO), and F_DIO0 (SPI MOSI),
	 * whenever the EC is not doing SPI flash transactions. This avoids
	 * floating SPI buffer input (MISO), which causes power leakage (see
	 * b/64797021).
	 */
	NPCX_PUPD_EN1 |= (1 << NPCX_DEVPU1_F_SPI_PUD_EN);

	/* Provide AC status to the PCH */
	gpio_set_level(GPIO_PCH_ACPRESENT, extpower_is_present());

	/* Enable VBUS interrupt */
	gpio_enable_interrupt(GPIO_USB_C0_VBUS_DET_L);
	gpio_enable_interrupt(GPIO_USB_C1_VBUS_DET_L);

	/* Enable pericom BC1.2 interrupts */
	gpio_enable_interrupt(GPIO_USB_C0_BC12_INT_L);
	gpio_enable_interrupt(GPIO_USB_C1_BC12_INT_L);

	/* Enable Gyro interrupts */
	gpio_enable_interrupt(GPIO_BASE_SIXAXIS_INT_L);

	/* Initialize PMIC */
	hook_call_deferred(&board_pmic_init_data, 0);
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);

static void usb_charge_mode_init(void)
{
	/*
	 * By default, turn the charging off when system suspends.
	 * If system power on with connecting a USB device,
	 * the OS must send an event to EC to clear the
	 * inhibit_charging_in_suspend.
	 */
	usb_charge_set_mode(0, USB_CHARGE_MODE_CDP,
			USB_DISALLOW_SUSPEND_CHARGE);
}
DECLARE_HOOK(HOOK_INIT, usb_charge_mode_init, HOOK_PRIO_DEFAULT + 1);

/**
 * Buffer the AC present GPIO to the PCH.
 */
static void board_extpower(void)
{
	gpio_set_level(GPIO_PCH_ACPRESENT, extpower_is_present());
}
DECLARE_HOOK(HOOK_AC_CHANGE, board_extpower, HOOK_PRIO_DEFAULT);

/**
 * Set active charge port -- only one port can be active at a time.
 *
 * @param charge_port   Charge port to enable.
 *
 * Returns EC_SUCCESS if charge port is accepted and made active,
 * EC_ERROR_* otherwise.
 */
int board_set_active_charge_port(int charge_port)
{
	/* charge port is a physical port */
	int is_real_port = (charge_port >= 0 &&
			    charge_port < CONFIG_USB_PD_PORT_COUNT);
	/* check if we are source VBUS on the port */
	int source = gpio_get_level(charge_port == 0 ? GPIO_USB_C0_5V_EN :
						       GPIO_USB_C1_5V_EN);

	if (is_real_port && source) {
		CPRINTF("Skip enable p%d", charge_port);
		return EC_ERROR_INVAL;
	}

	CPRINTF("New chg p%d", charge_port);

	if (charge_port == CHARGE_PORT_NONE) {
		/* Disable both ports */
		gpio_set_level(GPIO_EN_USB_C0_CHARGE_EC_L, 1);
		gpio_set_level(GPIO_EN_USB_C1_CHARGE_EC_L, 1);
	} else {
		/* Make sure non-charging port is disabled */
		gpio_set_level(charge_port ? GPIO_EN_USB_C0_CHARGE_EC_L :
					     GPIO_EN_USB_C1_CHARGE_EC_L, 1);
		/* Enable charging port */
		gpio_set_level(charge_port ? GPIO_EN_USB_C1_CHARGE_EC_L :
					     GPIO_EN_USB_C0_CHARGE_EC_L, 0);
	}

	return EC_SUCCESS;
}

/**
 * Set the charge limit based upon desired maximum.
 *
 * @param port          Port number.
 * @param supplier      Charge supplier type.
 * @param charge_ma     Desired charge limit (mA).
 * @param charge_mv     Negotiated charge voltage (mV).
 */
void board_set_charge_limit(int port, int supplier, int charge_ma,
			    int max_ma, int charge_mv)
{
	/*
	 * Limit the input current to 92% negotiated limit,
	 * to account for the charger chip margin.
	 */
	charge_ma = charge_ma * 92 / 100;
	charge_set_input_current_limit(
			MAX(charge_ma, CONFIG_CHARGER_INPUT_CURRENT),
			charge_mv);
}

void board_hibernate(void)
{
	CPRINTS("Triggering PMIC shutdown.");
	uart_flush_output();

	/* Trigger PMIC shutdown. */
	if (i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992, 0x49, 0x01)) {
		/*
		 * If we can't tell the PMIC to shutdown, instead reset
		 * and don't start the AP. Hopefully we'll be able to
		 * communicate with the PMIC next time.
		 */
		CPRINTS("PMIC i2c failed.");
		system_reset(SYSTEM_RESET_LEAVE_AP_OFF);
	}

	/* Await shutdown. */
	while (1)
		;
}

const struct pwm_t pwm_channels[] = {
	/*
	 * 1.2kHz is a multiple of both 50 and 60. So a video recorder
	 * (generally designed to ignore either 50 or 60 Hz flicker) will not
	 * alias with refresh rate.
	 */
	[PWM_CH_KBLIGHT] = { 4, 0, 1200 },
};
BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);

/* Lid Sensor mutex */
static struct mutex g_lid_mutex;
static struct mutex g_base_mutex;

static struct bmi160_drv_data_t g_bmi160_data;
static struct icm_drv_data_t g_icm426xx_data;

/* private data */
static struct accelgyro_saved_data_t g_bma255_data;
static struct kionix_accel_data g_kx022_data;

/* Matrix to rotate accelrator into standard reference frame */
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) }
};

const mat33_fp_t base_standard_ref_icm = {
	{ 0, FLOAT_TO_FP(1), 0 },
	{ FLOAT_TO_FP(1), 0, 0 },
	{ 0, 0, FLOAT_TO_FP(-1) }
};

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) }
};

struct motion_sensor_t base_accel_icm = {
	.name = "Base Accel",
	.active_mask = SENSOR_ACTIVE_S0_S3,
	.chip = MOTIONSENSE_CHIP_ICM426XX,
	.type = MOTIONSENSE_TYPE_ACCEL,
	.location = MOTIONSENSE_LOC_BASE,
	.drv = &icm426xx_drv,
	.mutex = &g_base_mutex,
	.drv_data = &g_icm426xx_data,
	.port = I2C_PORT_ACCEL,
	.addr = ICM426XX_ADDR0_FLAGS,
	.rot_standard_ref = &base_standard_ref_icm,
	.min_frequency = ICM426XX_ACCEL_MIN_FREQ,
	.max_frequency = ICM426XX_ACCEL_MAX_FREQ,
	.default_range = 4,  /* g, to meet CDD 7.3.1/C-1-4 reqs */
	.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 = 0,
		},
	},
};

struct motion_sensor_t base_gyro_icm = {
	.name = "Base Gyro",
	.active_mask = SENSOR_ACTIVE_S0_S3,
	.chip = MOTIONSENSE_CHIP_ICM426XX,
	.type = MOTIONSENSE_TYPE_GYRO,
	.location = MOTIONSENSE_LOC_BASE,
	.drv = &icm426xx_drv,
	.mutex = &g_base_mutex,
	.drv_data = &g_icm426xx_data,
	.port = I2C_PORT_ACCEL,
	.addr = ICM426XX_ADDR0_FLAGS,
	.default_range = 1000, /* dps */
	.rot_standard_ref = &base_standard_ref_icm,
	.min_frequency = ICM426XX_GYRO_MIN_FREQ,
	.max_frequency = ICM426XX_GYRO_MAX_FREQ,
};

struct motion_sensor_t lid_accel_kx022 = {
	.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_ACCEL,
	.addr = KX022_ADDR1,
	.rot_standard_ref = &lid_standard_ref,
	.min_frequency = KX022_ACCEL_MIN_FREQ,
	.max_frequency = KX022_ACCEL_MAX_FREQ,
	.default_range = 2, /* g, to support lid angle calculation. */
	.config = {
		/* EC use accel for angle detection */
		[SENSOR_CONFIG_EC_S0] = {
			.odr = 10000 | ROUND_UP_FLAG,
			.ec_rate = 0,
		},
		/* Sensor on in S3 */
		[SENSOR_CONFIG_EC_S3] = {
			.odr = 10000 | ROUND_UP_FLAG,
			.ec_rate = 0,
		},
	},
};

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_mutex,
		.drv_data = &g_bma255_data,
		.port = I2C_PORT_ACCEL,
		.addr = BMA2x2_I2C_ADDR1,
		.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,
				.ec_rate = 0,
			},
			/* Sensor on in S3 */
			[SENSOR_CONFIG_EC_S3] = {
				.odr = 10000 | ROUND_UP_FLAG,
				.ec_rate = 0,
			},
		},
	},
	[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_ACCEL,
		.addr = BMI160_ADDR0,
		.rot_standard_ref = &base_standard_ref,
		.min_frequency = BMI160_ACCEL_MIN_FREQ,
		.max_frequency = BMI160_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,
				.ec_rate = 100 * MSEC,
			},
			/* Sensor on in S3 */
			[SENSOR_CONFIG_EC_S3] = {
				.odr = 10000 | ROUND_UP_FLAG,
				.ec_rate = 0,
			},
		},
	},
	[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_ACCEL,
		.addr = BMI160_ADDR0,
		.default_range = 1000, /* dps */
		.rot_standard_ref = &base_standard_ref,
		.min_frequency = BMI160_GYRO_MIN_FREQ,
		.max_frequency = BMI160_GYRO_MAX_FREQ,
	},
};
unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);

void motion_interrupt(enum gpio_signal signal)
{
	if (get_cbi_ssfc_base_sensor() == SSFC_SENSOR_BASE_ICM426XX)
		icm426xx_interrupt(signal);
	else
		bmi160_interrupt(signal);
}

static void board_detect_motionsense(void)
{
	if (get_cbi_ssfc_lid_sensor() == SSFC_SENSOR_LID_KX022) {
		motion_sensors[LID_ACCEL] = lid_accel_kx022;
		ccprints("LID_ACCEL is KX022");
	} else
		ccprints("LID_ACCEL is BMA253");

	if (get_cbi_ssfc_base_sensor() == SSFC_SENSOR_BASE_ICM426XX) {
		motion_sensors[BASE_ACCEL] = base_accel_icm;
		motion_sensors[BASE_GYRO] = base_gyro_icm;
		ccprints("BASE_ACCEL is ICM426XX");
	} else
		ccprints("BASE_ACCEL is BMI160");
}
DECLARE_HOOK(HOOK_INIT, board_detect_motionsense, HOOK_PRIO_DEFAULT);

/* Enable or disable input devices, based on chipset state and tablet mode */
#ifndef TEST_BUILD
void lid_angle_peripheral_enable(int enable)
{
	/* If the lid is in 360 position, ignore the lid angle,
	 * which might be faulty. Disable keyboard.
	 */
	if (tablet_get_mode() || chipset_in_state(CHIPSET_STATE_ANY_OFF))
		enable = 0;
	keyboard_scan_enable(enable, KB_SCAN_DISABLE_LID_ANGLE);
}
#endif

static void board_chipset_reset(void)
{
	board_report_pmic_fault("CHIPSET RESET");
}
DECLARE_HOOK(HOOK_CHIPSET_RESET, board_chipset_reset, HOOK_PRIO_DEFAULT);

/* Called on AP S3 -> S0 transition */
static void board_chipset_resume(void)
{
	gpio_set_level(GPIO_ENABLE_BACKLIGHT, 1);
	gpio_set_level(GPIO_KB_BL_EN, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT);

/* Called on AP S0 -> S3 transition */
static void board_chipset_suspend(void)
{
	gpio_set_level(GPIO_ENABLE_BACKLIGHT, 0);
	gpio_set_level(GPIO_KB_BL_EN, 0);
}
DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT);

/* Called on AP S5 -> S3 transition */
static void board_chipset_startup(void)
{
	gpio_set_level(GPIO_EN_PP3300_TRACKPAD, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_STARTUP, board_chipset_startup, HOOK_PRIO_DEFAULT);

/* Called on AP S3 -> S5 transition */
static void board_chipset_shutdown(void)
{
	gpio_set_level(GPIO_EN_PP3300_TRACKPAD, 0);
}
DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, board_chipset_shutdown, HOOK_PRIO_DEFAULT);