path: root/baseboard/volteer/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.
 */

/* Volteer family-specific configuration */
#include "adc_chip.h"
#include "charge_manager.h"
#include "charge_state.h"
#include "driver/bc12/pi3usb9201.h"
#include "driver/ppc/sn5s330.h"
#include "driver/tcpm/tusb422.h"
#include "gpio.h"
#include "hooks.h"
#include "i2c.h"
#include "keyboard_scan.h"
#include "pwm.h"
#include "pwm_chip.h"
#include "usbc_ppc.h"
#include "usb_mux.h"
#include "usb_pd.h"
#include "usb_pd_tcpm.h"
#include "util.h"

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

#define CPRINTSUSB(format, args...) cprints(CC_USBCHARGE, format, ## args)
#define CPRINTFUSB(format, args...) cprintf(CC_USBCHARGE, format, ## args)

/******************************************************************************/
/* ADC configuration */
const struct adc_t adc_channels[] = {
	[ADC_TEMP_SENSOR_1_CHARGER] = {
		.name = "TEMP_CHARGER",
		.input_ch = NPCX_ADC_CH0,
		.factor_mul = ADC_MAX_VOLT,
		.factor_div = ADC_READ_MAX + 1,
		.shift = 0,
	},
	[ADC_TEMP_SENSOR_2_PP3300_REGULATOR] = {
		.name = "TEMP_PP3300_REGULATOR",
		.input_ch = NPCX_ADC_CH1,
		.factor_mul = ADC_MAX_VOLT,
		.factor_div = ADC_READ_MAX + 1,
		.shift = 0,
	},
	[ADC_TEMP_SENSOR_3_DDR_SOC] = {
		.name = "TEMP_DDR_SOC",
		.input_ch = NPCX_ADC_CH8,
		.factor_mul = ADC_MAX_VOLT,
		.factor_div = ADC_READ_MAX + 1,
		.shift = 0,
	},
	[ADC_TEMP_SENSOR_4_FAN] = {
		.name = "TEMP_FAN",
		.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);

/******************************************************************************/
/* BC1.2 charger detect configuration */
const struct pi3usb9201_config_t pi3usb9201_bc12_chips[] = {
	[USBC_PORT_C0] = {
		.i2c_port = I2C_PORT_USB_C0,
		.i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
	},
};
BUILD_ASSERT(ARRAY_SIZE(pi3usb9201_bc12_chips) == USBC_PORT_COUNT);

/******************************************************************************/
/* Wake up pins */
const enum gpio_signal hibernate_wake_pins[] = {
	GPIO_LID_OPEN,
	GPIO_ACOK_OD,
	GPIO_POWER_BUTTON_L,
	GPIO_EC_RST_ODL,
};
const int hibernate_wake_pins_used = ARRAY_SIZE(hibernate_wake_pins);

/******************************************************************************/
/* Keyboard scan setting */
struct keyboard_scan_config keyscan_config = {
	/* Increase from 50 us, because KSO_02 passes through the H1. */
	.output_settle_us = 80,
	/* Other values should be the same as the default configuration. */
	.debounce_down_us = 9 * MSEC,
	.debounce_up_us = 30 * MSEC,
	.scan_period_us = 3 * MSEC,
	.min_post_scan_delay_us = 1000,
	.poll_timeout_us = 100 * MSEC,
	.actual_key_mask = {
		0x14, 0xff, 0xff, 0xff, 0xff, 0xf5, 0xff,
		0xa4, 0xff, 0xfe, 0x55, 0xfa, 0xca  /* full set */
	},
};

/******************************************************************************/
/* I2C port map configuration */
const struct i2c_port_t i2c_ports[] = {
	{
		.name = "sensor",
		.port = I2C_PORT_SENSOR,
		.kbps = 400,
		.scl = GPIO_EC_I2C0_SENSOR_SCL,
		.sda = GPIO_EC_I2C0_SENSOR_SDA,
	},
	{
		.name = "usb_c0",
		.port = I2C_PORT_USB_C0,
		/* TODO: design supports 1 MHz, set to 100 KHz for bringup */
		.kbps = 100,
		.scl = GPIO_EC_I2C1_USB_C0_SCL,
		.sda = GPIO_EC_I2C1_USB_C0_SDA,
	},
	{
		.name = "usb_c1",
		.port = I2C_PORT_USB_C1,
		/* TODO: design supports 1 MHz, set to 100 KHz for bringup */
		.kbps = 100,
		.scl = GPIO_EC_I2C2_USB_C1_SCL,
		.sda = GPIO_EC_I2C2_USB_C1_SDA,
	},
	{
		.name = "usb_1_mix",
		.port = I2C_PORT_USB_1_MIX,
		.kbps = 100,
		.scl = GPIO_EC_I2C3_USB_1_MIX_SCL,
		.sda = GPIO_EC_I2C3_USB_1_MIX_SDA,
	},
	{
		.name = "power",
		.port = I2C_PORT_POWER,
		.kbps = 100,
		.scl = GPIO_EC_I2C5_POWER_SCL,
		.sda = GPIO_EC_I2C5_POWER_SDA,
	},
	{
		.name = "eeprom",
		.port = I2C_PORT_EEPROM,
		.kbps = 400,
		.scl = GPIO_EC_I2C7_EEPROM_SCL,
		.sda = GPIO_EC_I2C7_EEPROM_SDA,
	},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);

/******************************************************************************/
/* PWM configuration */
const struct pwm_t pwm_channels[] = {
	[PWM_CH_LED1_BLUE] = {
		.channel = 2,
		.flags = PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP,
		.freq = 100,
	},
	[PWM_CH_LED2_GREEN] = {
		.channel = 0,
		.flags = PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP,
		.freq = 100,
	},
	[PWM_CH_LED3_RED] = {
		.channel = 1,
		.flags = PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP,
		.freq = 100,
	},
};
BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);





/******************************************************************************/
/* USBC TCPC configuration */
const struct tcpc_config_t tcpc_config[] = {
	[USBC_PORT_C0] = {
		.bus_type = EC_BUS_TYPE_I2C,
		.i2c_info = {
			.port = I2C_PORT_USB_C0,
			.addr_flags = TUSB422_I2C_ADDR_FLAGS,
		},
		.drv = &tusb422_tcpm_drv,
		.usb23 = USBC_PORT_0_USB2_NUM | (USBC_PORT_0_USB3_NUM << 4),
	},
};
BUILD_ASSERT(ARRAY_SIZE(tcpc_config) == USBC_PORT_COUNT);
BUILD_ASSERT(CONFIG_USB_PD_PORT_MAX_COUNT == USBC_PORT_COUNT);

/******************************************************************************/
/* USBC PPC configuration */
struct ppc_config_t ppc_chips[] = {
	[USBC_PORT_C0] = {
		.i2c_port = I2C_PORT_USB_C0,
		.i2c_addr_flags = SN5S330_ADDR0_FLAGS,
		.drv = &sn5s330_drv
	},
};
BUILD_ASSERT(ARRAY_SIZE(ppc_chips) == USBC_PORT_COUNT);
unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips);

/******************************************************************************/
/* USBC mux configuration - Tiger Lake includes internal mux */
struct usb_mux usb_muxes[] = {
	[USBC_PORT_C0] = {
		.driver = &virtual_usb_mux_driver,
		.hpd_update = &virtual_hpd_update,
	},
};
BUILD_ASSERT(ARRAY_SIZE(usb_muxes) == USBC_PORT_COUNT);


static void baseboard_tcpc_init(void)
{
	/* Enable PPC interrupts. */
	gpio_enable_interrupt(GPIO_USB_C0_PPC_INT_ODL);

	/* Enable TCPC interrupts. */
	gpio_enable_interrupt(GPIO_USB_C0_TCPC_INT_ODL);
}
DECLARE_HOOK(HOOK_INIT, baseboard_tcpc_init, HOOK_PRIO_INIT_I2C + 1);

/******************************************************************************/
/* PPC support routines */
void ppc_interrupt(enum gpio_signal signal)
{
	switch (signal) {
	case GPIO_USB_C0_PPC_INT_ODL:
		sn5s330_interrupt(USBC_PORT_C0);
		break;

	default:
		break;
	}
}

/******************************************************************************/
/* TCPC support routines */
void board_reset_pd_mcu(void)
{
	/* No reset available for TCPC on port 0 */
}

uint16_t tcpc_get_alert_status(void)
{
	uint16_t status = 0;

	/*
	 * Check which port has the ALERT line set
	 */
	if (!gpio_get_level(GPIO_USB_C0_TCPC_INT_ODL))
		status |= PD_STATUS_TCPC_ALERT_0;

	return status;
}

void tcpc_alert_event(enum gpio_signal signal)
{
	/* TODO: b/140572591 - check correct operation for Volteer */

	int port = -1;

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

	schedule_deferred_pd_interrupt(port);
}

int board_set_active_charge_port(int port)
{
	/* TODO: b/140561826 - check correct operation for Volteer */

	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;
}

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);
}

void board_overcurrent_event(int port, int is_overcurrented)
{
	/* TODO: b/140561826 - check correct operation for Volteer */
}