path: root/baseboard/goroh/baseboard.c

/* Copyright 2021 The ChromiumOS Authors
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

/* Goroh baseboard-specific configuration */

#include "adc.h"
#include "adc_chip.h"
#include "baseboard_usbc_config.h"
#include "button.h"
#include "charge_manager.h"
#include "charger.h"
#include "charger.h"
#include "charge_state.h"
#include "charge_state_v2.h"
#include "chipset.h"
#include "common.h"
#include "console.h"
#include "driver/accelgyro_bmi_common.h"
#include "driver/accel_lis2dw12.h"
#include "driver/als_tcs3400.h"
#include "driver/charger/isl923x.h"
#include "driver/ppc/syv682x.h"
#include "driver/tcpm/it83xx_pd.h"
#include "driver/temp_sensor/thermistor.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_button.h"
#include "power.h"
#include "power.h"
#include "spi.h"
#include "switch.h"
#include "tablet_mode.h"
#include "task.h"
#include "temp_sensor.h"
#include "timer.h"
#include "uart.h"
#include "usbc_ppc.h"
#include "usb_mux.h"
#include "usb_pd.h"
#include "usb_pd_tcpm.h"

#include "gpio_list.h"

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

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

const struct charger_config_t chg_chips[] = {
	{
		.i2c_port = I2C_PORT_CHARGER,
		.i2c_addr_flags = ISL923X_ADDR_FLAGS,
		.drv = &isl923x_drv,
	},
};

/* BC12 skeleton to make build happy. */
struct bc12_config bc12_ports[CHARGE_PORT_COUNT] = {};

const int usb_port_enable[USB_PORT_COUNT] = {};

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

/* USB Mux */

/*
 * I2C channels (A, B, and C) are using the same timing registers (00h~07h)
 * at default.
 * In order to set frequency independently for each channels,
 * We use timing registers 09h~0Bh, and the supported frequency will be:
 * 50KHz, 100KHz, 400KHz, or 1MHz.
 * I2C channels (D, E and F) can be set different frequency on different ports.
 * The I2C(D/E/F) frequency depend on the frequency of SMBus Module and
 * the individual prescale register.
 * The frequency of SMBus module is 24MHz on default.
 * The allowed range of I2C(D/E/F) frequency is as following setting.
 * SMBus Module Freq = PLL_CLOCK / ((IT83XX_ECPM_SCDCR2 & 0x0F) + 1)
 * (SMBus Module Freq / 510) <=  I2C Freq <= (SMBus Module Freq / 8)
 * Channel D has multi-function and can be used as UART interface.
 * Channel F is reserved for EC debug.
 */

/* I2C ports */
const struct i2c_port_t i2c_ports[] = {
	{ .name = "bat_chg",
	  .port = IT83XX_I2C_CH_A,
	  .kbps = 100,
	  .scl = GPIO_I2C_A_SCL,
	  .sda = GPIO_I2C_A_SDA },
	{ .name = "sensor",
	  .port = IT83XX_I2C_CH_B,
	  .kbps = 400,
	  .scl = GPIO_I2C_B_SCL,
	  .sda = GPIO_I2C_B_SDA },
	{ .name = "usb0",
	  .port = IT83XX_I2C_CH_C,
	  .kbps = 400,
	  .scl = GPIO_I2C_C_SCL,
	  .sda = GPIO_I2C_C_SDA },
	{ .name = "usb1",
	  .port = IT83XX_I2C_CH_E,
	  .kbps = 400,
	  .scl = GPIO_I2C_E_SCL,
	  .sda = GPIO_I2C_E_SDA },
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);

int board_allow_i2c_passthru(const struct i2c_cmd_desc_t *cmd_desc)
{
	return (cmd_desc->port == I2C_PORT_VIRTUAL_BATTERY);
}

void board_overcurrent_event(int port, int is_overcurrented)
{
	/* TODO: check correct operation for GOROH */
}

const struct cc_para_t *board_get_cc_tuning_parameter(enum usbpd_port port)
{
	const static struct cc_para_t
		cc_parameter[CONFIG_USB_PD_ITE_ACTIVE_PORT_COUNT] = {
			{
				.rising_time =
					IT83XX_TX_PRE_DRIVING_TIME_1_UNIT,
				.falling_time =
					IT83XX_TX_PRE_DRIVING_TIME_2_UNIT,
			},
			{
				.rising_time =
					IT83XX_TX_PRE_DRIVING_TIME_1_UNIT,
				.falling_time =
					IT83XX_TX_PRE_DRIVING_TIME_2_UNIT,
			},
		};

	return &cc_parameter[port];
}

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_pd_vconn_ctrl(int port, enum usbpd_cc_pin cc_pin, int enabled)
{
	/*
	 * We ignore the cc_pin and PPC vconn because polarity and PPC vconn
	 * should already be set correctly in the PPC driver via the pd
	 * state machine.
	 */
}

int board_set_active_charge_port(int port)
{
	int i;
	int is_valid_port = ((port == 0) || (port == 1));

	if (!is_valid_port && port != CHARGE_PORT_NONE)
		return EC_ERROR_INVAL;

	if (port == CHARGE_PORT_NONE) {
		CPRINTS("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))
				CPRINTS("Disabling C%d as sink failed.", i);
		}

		return EC_SUCCESS;
	}

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

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

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

	return EC_SUCCESS;
}

int ppc_get_alert_status(int port)
{
	if (port == 0)
		return gpio_get_level(GPIO_USB_C0_FAULT_ODL) == 0;
	if (port == 1)
		return gpio_get_level(GPIO_USB_C1_FAULT_ODL) == 0;

	return 0;
}

/* Lid */
#ifndef TEST_BUILD
/* This callback disables keyboard when convertibles are fully open */
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

/* Called on AP S5 -> S3 transition */
static void board_chipset_startup(void)
{
	gpio_set_level(GPIO_EN_USB_C1_MUX_PWR, 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_USB_C1_MUX_PWR, 0);
}
DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, board_chipset_shutdown, HOOK_PRIO_DEFAULT);