asurada: Move baseboard USB-C code into a separate file

Move this code into a new file so that zephyr can build it as well as
ECOS.

Put the definition of board_get_sub_board() at the top so we don't
need the forward declaration.

BUG=b:189855648
BRANCH=none
TEST=make BOARD=asurada -j30

Signed-off-by: Simon Glass <sjg@chromium.org>
Change-Id: Id04730161efd4fb5ec4366352bc26cfd11d8bbee
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2941891
Reviewed-by: Denis Brockus <dbrockus@chromium.org>

3 files changed, 423 insertions, 402 deletions

diff --git a/baseboard/asurada/baseboard.c b/baseboard/asurada/baseboard.c
index 7b12d9cd40..65a2327f55 100644
--- a/baseboard/asurada/baseboard.c
+++ b/baseboard/asurada/baseboard.c
@@ -20,26 +20,20 @@
 #include "driver/accel_lis2dw12.h"
 #include "driver/als_tcs3400.h"
 #include "driver/bc12/mt6360.h"
-#include "driver/bc12/pi3usb9201.h"
-#include "driver/charger/isl923x.h"
 #include "driver/charger/isl923x.h"
 #include "driver/ppc/syv682x.h"
 #include "driver/tcpm/it83xx_pd.h"
 #include "driver/temp_sensor/thermistor.h"
-#include "driver/usb_mux/it5205.h"
-#include "driver/usb_mux/ps8743.h"
 #include "extpower.h"
 #include "gpio.h"
 #include "hooks.h"
 #include "i2c.h"
-#include "i2c.h"
 #include "it5205_sbu.h"
 #include "keyboard_scan.h"
 #include "lid_switch.h"
 #include "motion_sense.h"
 #include "power_button.h"
 #include "power.h"
-#include "power.h"
 #include "regulator.h"
 #include "spi.h"
 #include "switch.h"
@@ -48,18 +42,9 @@
 #include "temp_sensor.h"
 #include "timer.h"
 #include "uart.h"
-#include "usb_charge.h"
-#include "usbc_ppc.h"
-#include "usb_mux.h"
-#include "usb_pd.h"
-#include "usb_pd_tcpm.h"
 
 #include "gpio_list.h"
 
-#define CPRINTSUSB(format, args...) cprints(CC_USBCHARGE, format, ## args)
-#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_AC_PRESENT,
@@ -68,14 +53,6 @@ enum gpio_signal hibernate_wake_pins[] = {
 };
 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,
-	},
-};
-
 __override void board_hibernate_late(void)
 {
 	/*
@@ -99,205 +76,6 @@ __override void board_hibernate_late(void)
 	__builtin_unreachable();
 }
 
-/* Detect subboard */
-static void board_tcpc_init(void)
-{
-	gpio_enable_interrupt(GPIO_USB_C0_PPC_INT_ODL);
-	/* C1: GPIO_USB_C1_PPC_INT_ODL & HDMI: GPIO_PS185_EC_DP_HPD */
-	gpio_enable_interrupt(GPIO_X_EC_GPIO2);
-
-	/* If this is not a Type-C subboard, disable the task. */
-	if (board_get_sub_board() != SUB_BOARD_TYPEC)
-		task_disable_task(TASK_ID_PD_C1);
-}
-/* Must be done after I2C and subboard */
-DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_I2C + 1);
-
-/* PPC */
-struct ppc_config_t ppc_chips[CONFIG_USB_PD_PORT_MAX_COUNT] = {
-	{
-		.i2c_port = I2C_PORT_PPC0,
-		.i2c_addr_flags = SYV682X_ADDR0_FLAGS,
-		.drv = &syv682x_drv,
-		.frs_en = GPIO_USB_C0_FRS_EN,
-	},
-	{
-		.i2c_port = I2C_PORT_PPC1,
-		.i2c_addr_flags = SYV682X_ADDR0_FLAGS,
-		.drv = &syv682x_drv,
-		.frs_en = GPIO_USB_C1_FRS_EN,
-	},
-};
-unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips);
-
-/* BC12 */
-const struct mt6360_config_t mt6360_config = {
-	.i2c_port = 0,
-	.i2c_addr_flags = MT6360_PMU_I2C_ADDR_FLAGS,
-};
-
-const struct pi3usb9201_config_t
-		pi3usb9201_bc12_chips[CONFIG_USB_PD_PORT_MAX_COUNT] = {
-	/* [0]: unused */
-	[1] = {
-		.i2c_port = 4,
-		.i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
-	}
-};
-
-struct bc12_config bc12_ports[CONFIG_USB_PD_PORT_MAX_COUNT] = {
-	{ .drv = &mt6360_drv },
-	{ .drv = &pi3usb9201_drv },
-};
-
-void bc12_interrupt(enum gpio_signal signal)
-{
-	if (signal == GPIO_USB_C0_BC12_INT_ODL)
-		task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12);
-	else
-		task_set_event(TASK_ID_USB_CHG_P1, USB_CHG_EVENT_BC12);
-}
-
-static void board_sub_bc12_init(void)
-{
-	if (board_get_sub_board() == SUB_BOARD_TYPEC)
-		gpio_enable_interrupt(GPIO_USB_C1_BC12_INT_L);
-	else
-		/* If this is not a Type-C subboard, disable the task. */
-		task_disable_task(TASK_ID_USB_CHG_P1);
-}
-/* Must be done after I2C and subboard */
-DECLARE_HOOK(HOOK_INIT, board_sub_bc12_init, HOOK_PRIO_INIT_I2C + 1);
-
-void ppc_interrupt(enum gpio_signal signal)
-{
-	if (signal == GPIO_USB_C0_PPC_INT_ODL)
-		/* C0: PPC interrupt */
-		syv682x_interrupt(0);
-}
-
-/* Sub-board */
-
-enum board_sub_board board_get_sub_board(void)
-{
-	static enum board_sub_board sub = SUB_BOARD_NONE;
-
-	if (sub != SUB_BOARD_NONE)
-		return sub;
-
-	/* HDMI board has external pull high. */
-	if (gpio_get_level(GPIO_EC_X_GPIO3)) {
-		sub = SUB_BOARD_HDMI;
-		/* Only has 1 PPC with HDMI subboard */
-		ppc_cnt = 1;
-		/* EC_X_GPIO1 */
-		gpio_set_flags(GPIO_EN_HDMI_PWR, GPIO_OUT_HIGH);
-		/* X_EC_GPIO2 */
-		gpio_set_flags(GPIO_PS185_EC_DP_HPD, GPIO_INT_BOTH);
-		/* EC_X_GPIO3 */
-		gpio_set_flags(GPIO_PS185_PWRDN_ODL, GPIO_ODR_HIGH);
-	} else {
-		sub = SUB_BOARD_TYPEC;
-		/* EC_X_GPIO1 */
-		gpio_set_flags(GPIO_USB_C1_FRS_EN, GPIO_OUT_LOW);
-		/* X_EC_GPIO2 */
-		gpio_set_flags(GPIO_USB_C1_PPC_INT_ODL,
-			       GPIO_INT_BOTH | GPIO_PULL_UP);
-		/* EC_X_GPIO3 */
-		gpio_set_flags(GPIO_USB_C1_DP_IN_HPD, GPIO_OUT_LOW);
-	}
-
-	CPRINTS("Detect %s SUB", sub == SUB_BOARD_HDMI ? "HDMI" : "TYPEC");
-	return sub;
-}
-
-static void sub_board_init(void)
-{
-	board_get_sub_board();
-}
-DECLARE_HOOK(HOOK_INIT, sub_board_init, HOOK_PRIO_INIT_I2C - 1);
-
-__override uint8_t board_get_usb_pd_port_count(void)
-{
-	if (board_get_sub_board() == SUB_BOARD_TYPEC)
-		return CONFIG_USB_PD_PORT_MAX_COUNT;
-	else
-		return CONFIG_USB_PD_PORT_MAX_COUNT - 1;
-}
-
-/* USB-A */
-const int usb_port_enable[] = {
-	GPIO_EN_PP5000_USB_A0_VBUS,
-};
-BUILD_ASSERT(ARRAY_SIZE(usb_port_enable) == USB_PORT_COUNT);
-
-void usb_a0_interrupt(enum gpio_signal signal)
-{
-	enum usb_charge_mode mode = gpio_get_level(signal) ?
-		USB_CHARGE_MODE_ENABLED : USB_CHARGE_MODE_DISABLED;
-
-	for (int i = 0; i < USB_PORT_COUNT; i++)
-		usb_charge_set_mode(i, mode, USB_ALLOW_SUSPEND_CHARGE);
-}
-
-static int board_ps8743_mux_set(const struct usb_mux *me,
-				mux_state_t mux_state)
-{
-	int rv = EC_SUCCESS;
-	int reg = 0;
-
-	rv = ps8743_read(me, PS8743_REG_MODE, &reg);
-	if (rv)
-		return rv;
-
-	/* Disable FLIP pin, enable I2C control. */
-	reg |= PS8743_MODE_FLIP_REG_CONTROL;
-	/* Disable CE_USB pin, enable I2C control. */
-	reg |= PS8743_MODE_USB_REG_CONTROL;
-	/* Disable CE_DP pin, enable I2C control. */
-	reg |= PS8743_MODE_DP_REG_CONTROL;
-
-	/*
-	 * DP specific config
-	 *
-	 * Enable/Disable IN_HPD on the DB.
-	 */
-	gpio_set_level(GPIO_USB_C1_DP_IN_HPD,
-		       mux_state & USB_PD_MUX_DP_ENABLED);
-
-	return ps8743_write(me, PS8743_REG_MODE, reg);
-}
-
-const struct usb_mux usbc0_virtual_mux = {
-	.usb_port = 0,
-	.driver = &virtual_usb_mux_driver,
-	.hpd_update = &virtual_hpd_update,
-};
-
-const struct usb_mux usbc1_virtual_mux = {
-	.usb_port = 1,
-	.driver = &virtual_usb_mux_driver,
-	.hpd_update = &virtual_hpd_update,
-};
-
-const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = {
-	{
-		.usb_port = 0,
-		.i2c_port = I2C_PORT_USB_MUX0,
-		.i2c_addr_flags = IT5205_I2C_ADDR1_FLAGS,
-		.driver = &it5205_usb_mux_driver,
-		.next_mux = &usbc0_virtual_mux,
-	},
-	{
-		.usb_port = 1,
-		.i2c_port = I2C_PORT_USB_MUX1,
-		.i2c_addr_flags = PS8743_I2C_ADDR0_FLAG,
-		.driver = &ps8743_usb_mux_driver,
-		.next_mux = &usbc1_virtual_mux,
-		.board_set = &board_ps8743_mux_set,
-	},
-};
-
 /*
  * I2C channels (A, B, and C) are using the same timing registers (00h~07h)
  * at default.
@@ -329,30 +107,6 @@ int board_allow_i2c_passthru(int port)
 	return (port == I2C_PORT_VIRTUAL_BATTERY);
 }
 
-
-void board_overcurrent_event(int port, int is_overcurrented)
-{
-	/* TODO: check correct operation for Asurada */
-}
-
-/* TCPC */
-const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = {
-	{
-		.bus_type = EC_BUS_TYPE_EMBEDDED,
-		/* TCPC is embedded within EC so no i2c config needed */
-		.drv = &it8xxx2_tcpm_drv,
-		/* Alert is active-low, push-pull */
-		.flags = 0,
-	},
-	{
-		.bus_type = EC_BUS_TYPE_EMBEDDED,
-		/* TCPC is embedded within EC so no i2c config needed */
-		.drv = &it8xxx2_tcpm_drv,
-		/* Alert is active-low, push-pull */
-		.flags = 0,
-	},
-};
-
 const struct cc_para_t *board_get_cc_tuning_parameter(enum usbpd_port port)
 {
 	const static struct cc_para_t
@@ -370,143 +124,6 @@ const struct cc_para_t *board_get_cc_tuning_parameter(enum usbpd_port port)
 	return &cc_parameter[port];
 }
 
-uint16_t tcpc_get_alert_status(void)
-{
-	/*
-	 * C0 & C1: TCPC is embedded in the EC and processes interrupts in the
-	 * chip code (it83xx/intc.c)
-	 */
-	return 0;
-}
-
-void board_reset_pd_mcu(void)
-{
-	/*
-	 * C0 & C1: TCPC is embedded in the EC and processes interrupts in the
-	 * chip code (it83xx/intc.c)
-	 */
-}
-
-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 && board_get_sub_board() ==
-							       SUB_BOARD_TYPEC);
-
-	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)) {
-		CPRINTF("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;
-}
-
-/**
- * Handle PS185 HPD changing state.
- */
-int debounced_hpd;
-
-static void ps185_hdmi_hpd_deferred(void)
-{
-	const int new_hpd = gpio_get_level(GPIO_PS185_EC_DP_HPD);
-
-	/* HPD status not changed, probably a glitch, just return. */
-	if (debounced_hpd == new_hpd)
-		return;
-
-	debounced_hpd = new_hpd;
-
-	gpio_set_level(GPIO_EC_DPBRDG_HPD_ODL, !debounced_hpd);
-	CPRINTS(debounced_hpd ? "HDMI plug" : "HDMI unplug");
-}
-DECLARE_DEFERRED(ps185_hdmi_hpd_deferred);
-
-#define PS185_HPD_DEBOUCE 250
-
-static void hdmi_hpd_interrupt(enum gpio_signal signal)
-{
-	hook_call_deferred(&ps185_hdmi_hpd_deferred_data, PS185_HPD_DEBOUCE);
-}
-
-/* HDMI/TYPE-C function shared subboard interrupt */
-void x_ec_interrupt(enum gpio_signal signal)
-{
-	int sub = board_get_sub_board();
-
-	if (sub == SUB_BOARD_TYPEC)
-		/* C1: PPC interrupt */
-		syv682x_interrupt(1);
-	else if (sub == SUB_BOARD_HDMI)
-		hdmi_hpd_interrupt(signal);
-	else
-		CPRINTS("Undetected subboard interrupt.");
-}
-
-int ppc_get_alert_status(int port)
-{
-	if (port == 0)
-		return gpio_get_level(GPIO_USB_C0_PPC_INT_ODL) == 0;
-	if (port == 1 && board_get_sub_board() == SUB_BOARD_TYPEC)
-		return gpio_get_level(GPIO_USB_C1_PPC_INT_ODL) == 0;
-
-	return 0;
-}
 /* SD Card */
 int board_regulator_get_info(uint32_t index, char *name,
 			     uint16_t *num_voltages, uint16_t *voltages_mv)
@@ -566,22 +183,3 @@ void lid_angle_peripheral_enable(int enable)
 	}
 }
 #endif
-
-static void baseboard_init(void)
-{
-	gpio_enable_interrupt(GPIO_USB_C0_BC12_INT_ODL);
-	gpio_enable_interrupt(GPIO_AP_XHCI_INIT_DONE);
-}
-DECLARE_HOOK(HOOK_INIT, baseboard_init, HOOK_PRIO_DEFAULT-1);
-
-#ifdef CONFIG_USB_PD_VBUS_MEASURE_ADC_EACH_PORT
-enum adc_channel board_get_vbus_adc(int port)
-{
-	if (port == 0)
-		return  ADC_VBUS_C0;
-	if (port == 1)
-		return  ADC_VBUS_C1;
-	CPRINTSUSB("Unknown vbus adc port id: %d", port);
-	return ADC_VBUS_C0;
-}
-#endif /* CONFIG_USB_PD_VBUS_MEASURE_ADC_EACH_PORT */
diff --git a/baseboard/asurada/build.mk b/baseboard/asurada/build.mk
index 17fafb211b..77c49c7e67 100644
--- a/baseboard/asurada/build.mk
+++ b/baseboard/asurada/build.mk
@@ -9,4 +9,5 @@
 baseboard-y=baseboard.o
 baseboard-y+=board_chipset.o
 baseboard-y+=board_id.o
+baseboard-y+=usbc_config.o
 baseboard-$(CONFIG_USB_POWER_DELIVERY)+=usb_pd_policy.o
diff --git a/baseboard/asurada/usbc_config.c b/baseboard/asurada/usbc_config.c
new file mode 100644
index 0000000000..3e148d7422
--- /dev/null
+++ b/baseboard/asurada/usbc_config.c
@@ -0,0 +1,422 @@
+/* Copyright 2021 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.
+ */
+
+/* Asurada baseboard-specific USB-C configuration */
+
+#include "adc.h"
+#include "baseboard_common.h"
+#include "bc12/pi3usb9201_public.h"
+#include "bc12/mt6360_public.h"
+#include "button.h"
+#include "charger.h"
+#include "charge_state_v2.h"
+#include "charger/isl923x_public.h"
+#include "console.h"
+#include "ec_commands.h"
+#include "extpower.h"
+#include "gpio.h"
+#include "hooks.h"
+#include "i2c.h"
+#include "lid_switch.h"
+#include "task.h"
+#include "ppc/syv682x_public.h"
+#include "power.h"
+#include "power_button.h"
+#include "spi.h"
+#include "switch.h"
+#include "tablet_mode.h"
+#include "tcpm/it8xxx2_pd_public.h"
+#include "uart.h"
+#include "usbc_ppc.h"
+#include "usb_charge.h"
+#include "usb_mux.h"
+#include "usb_mux/ps8743_public.h"
+#include "usb_mux/it5205_public.h"
+#include "usb_pd_tcpm.h"
+#include "usbc_ppc.h"
+
+#define CPRINTSUSB(format, args...) cprints(CC_USBCHARGE, format, ## args)
+#define CPRINTS(format, args...) cprints(CC_SYSTEM, format, ## args)
+#define CPRINTF(format, args...) cprintf(CC_SYSTEM, format, ## args)
+
+const struct charger_config_t chg_chips[] = {
+	{
+		.i2c_port = I2C_PORT_CHARGER,
+		.i2c_addr_flags = ISL923X_ADDR_FLAGS,
+		.drv = &isl923x_drv,
+	},
+};
+
+/* Sub-board */
+
+enum board_sub_board board_get_sub_board(void)
+{
+	static enum board_sub_board sub = SUB_BOARD_NONE;
+
+	if (sub != SUB_BOARD_NONE)
+		return sub;
+
+	/* HDMI board has external pull high. */
+	if (gpio_get_level(GPIO_EC_X_GPIO3)) {
+		sub = SUB_BOARD_HDMI;
+		/* Only has 1 PPC with HDMI subboard */
+		ppc_cnt = 1;
+		/* EC_X_GPIO1 */
+		gpio_set_flags(GPIO_EN_HDMI_PWR, GPIO_OUT_HIGH);
+		/* X_EC_GPIO2 */
+		gpio_set_flags(GPIO_PS185_EC_DP_HPD, GPIO_INT_BOTH);
+		/* EC_X_GPIO3 */
+		gpio_set_flags(GPIO_PS185_PWRDN_ODL, GPIO_ODR_HIGH);
+	} else {
+		sub = SUB_BOARD_TYPEC;
+		/* EC_X_GPIO1 */
+		gpio_set_flags(GPIO_USB_C1_FRS_EN, GPIO_OUT_LOW);
+		/* X_EC_GPIO2 */
+		gpio_set_flags(GPIO_USB_C1_PPC_INT_ODL,
+			       GPIO_INT_BOTH | GPIO_PULL_UP);
+		/* EC_X_GPIO3 */
+		gpio_set_flags(GPIO_USB_C1_DP_IN_HPD, GPIO_OUT_LOW);
+	}
+
+	CPRINTS("Detect %s SUB", sub == SUB_BOARD_HDMI ? "HDMI" : "TYPEC");
+	return sub;
+}
+
+static void sub_board_init(void)
+{
+	board_get_sub_board();
+}
+DECLARE_HOOK(HOOK_INIT, sub_board_init, HOOK_PRIO_INIT_I2C - 1);
+
+/* Detect subboard */
+static void board_tcpc_init(void)
+{
+	gpio_enable_interrupt(GPIO_USB_C0_PPC_INT_ODL);
+	/* C1: GPIO_USB_C1_PPC_INT_ODL & HDMI: GPIO_PS185_EC_DP_HPD */
+	gpio_enable_interrupt(GPIO_X_EC_GPIO2);
+
+	/* If this is not a Type-C subboard, disable the task. */
+	if (board_get_sub_board() != SUB_BOARD_TYPEC)
+		task_disable_task(TASK_ID_PD_C1);
+}
+/* Must be done after I2C and subboard */
+DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_I2C + 1);
+
+/* PPC */
+struct ppc_config_t ppc_chips[CONFIG_USB_PD_PORT_MAX_COUNT] = {
+	{
+		.i2c_port = I2C_PORT_PPC0,
+		.i2c_addr_flags = SYV682X_ADDR0_FLAGS,
+		.drv = &syv682x_drv,
+		.frs_en = GPIO_USB_C0_FRS_EN,
+	},
+	{
+		.i2c_port = I2C_PORT_PPC1,
+		.i2c_addr_flags = SYV682X_ADDR0_FLAGS,
+		.drv = &syv682x_drv,
+		.frs_en = GPIO_USB_C1_FRS_EN,
+	},
+};
+unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips);
+
+/* BC12 */
+const struct mt6360_config_t mt6360_config = {
+	.i2c_port = 0,
+	.i2c_addr_flags = MT6360_PMU_I2C_ADDR_FLAGS,
+};
+
+const struct pi3usb9201_config_t
+		pi3usb9201_bc12_chips[CONFIG_USB_PD_PORT_MAX_COUNT] = {
+	/* [0]: unused */
+	[1] = {
+		.i2c_port = 4,
+		.i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
+	}
+};
+
+struct bc12_config bc12_ports[CONFIG_USB_PD_PORT_MAX_COUNT] = {
+	{ .drv = &mt6360_drv },
+	{ .drv = &pi3usb9201_drv },
+};
+
+void bc12_interrupt(enum gpio_signal signal)
+{
+	if (signal == GPIO_USB_C0_BC12_INT_ODL)
+		task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12);
+	else
+		task_set_event(TASK_ID_USB_CHG_P1, USB_CHG_EVENT_BC12);
+}
+
+static void board_sub_bc12_init(void)
+{
+	if (board_get_sub_board() == SUB_BOARD_TYPEC)
+		gpio_enable_interrupt(GPIO_USB_C1_BC12_INT_L);
+	else
+		/* If this is not a Type-C subboard, disable the task. */
+		task_disable_task(TASK_ID_USB_CHG_P1);
+}
+/* Must be done after I2C and subboard */
+DECLARE_HOOK(HOOK_INIT, board_sub_bc12_init, HOOK_PRIO_INIT_I2C + 1);
+
+void ppc_interrupt(enum gpio_signal signal)
+{
+	if (signal == GPIO_USB_C0_PPC_INT_ODL)
+		/* C0: PPC interrupt */
+		syv682x_interrupt(0);
+}
+
+__override uint8_t board_get_usb_pd_port_count(void)
+{
+	if (board_get_sub_board() == SUB_BOARD_TYPEC)
+		return CONFIG_USB_PD_PORT_MAX_COUNT;
+	else
+		return CONFIG_USB_PD_PORT_MAX_COUNT - 1;
+}
+
+/* USB-A */
+const int usb_port_enable[] = {
+	GPIO_EN_PP5000_USB_A0_VBUS,
+};
+BUILD_ASSERT(ARRAY_SIZE(usb_port_enable) == USB_PORT_COUNT);
+
+void usb_a0_interrupt(enum gpio_signal signal)
+{
+	enum usb_charge_mode mode = gpio_get_level(signal) ?
+		USB_CHARGE_MODE_ENABLED : USB_CHARGE_MODE_DISABLED;
+
+	for (int i = 0; i < USB_PORT_COUNT; i++)
+		usb_charge_set_mode(i, mode, USB_ALLOW_SUSPEND_CHARGE);
+}
+
+static int board_ps8743_mux_set(const struct usb_mux *me,
+				mux_state_t mux_state)
+{
+	int rv = EC_SUCCESS;
+	int reg = 0;
+
+	rv = ps8743_read(me, PS8743_REG_MODE, &reg);
+	if (rv)
+		return rv;
+
+	/* Disable FLIP pin, enable I2C control. */
+	reg |= PS8743_MODE_FLIP_REG_CONTROL;
+	/* Disable CE_USB pin, enable I2C control. */
+	reg |= PS8743_MODE_USB_REG_CONTROL;
+	/* Disable CE_DP pin, enable I2C control. */
+	reg |= PS8743_MODE_DP_REG_CONTROL;
+
+	/*
+	 * DP specific config
+	 *
+	 * Enable/Disable IN_HPD on the DB.
+	 */
+	gpio_set_level(GPIO_USB_C1_DP_IN_HPD,
+		       mux_state & USB_PD_MUX_DP_ENABLED);
+
+	return ps8743_write(me, PS8743_REG_MODE, reg);
+}
+
+const struct usb_mux usbc0_virtual_mux = {
+	.usb_port = 0,
+	.driver = &virtual_usb_mux_driver,
+	.hpd_update = &virtual_hpd_update,
+};
+
+const struct usb_mux usbc1_virtual_mux = {
+	.usb_port = 1,
+	.driver = &virtual_usb_mux_driver,
+	.hpd_update = &virtual_hpd_update,
+};
+
+const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = {
+	{
+		.usb_port = 0,
+		.i2c_port = I2C_PORT_USB_MUX0,
+		.i2c_addr_flags = IT5205_I2C_ADDR1_FLAGS,
+		.driver = &it5205_usb_mux_driver,
+		.next_mux = &usbc0_virtual_mux,
+	},
+	{
+		.usb_port = 1,
+		.i2c_port = I2C_PORT_USB_MUX1,
+		.i2c_addr_flags = PS8743_I2C_ADDR0_FLAG,
+		.driver = &ps8743_usb_mux_driver,
+		.next_mux = &usbc1_virtual_mux,
+		.board_set = &board_ps8743_mux_set,
+	},
+};
+
+void board_overcurrent_event(int port, int is_overcurrented)
+{
+	/* TODO: check correct operation for Asurada */
+}
+
+/* TCPC */
+const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = {
+	{
+		.bus_type = EC_BUS_TYPE_EMBEDDED,
+		/* TCPC is embedded within EC so no i2c config needed */
+		.drv = &it8xxx2_tcpm_drv,
+		/* Alert is active-low, push-pull */
+		.flags = 0,
+	},
+	{
+		.bus_type = EC_BUS_TYPE_EMBEDDED,
+		/* TCPC is embedded within EC so no i2c config needed */
+		.drv = &it8xxx2_tcpm_drv,
+		/* Alert is active-low, push-pull */
+		.flags = 0,
+	},
+};
+
+uint16_t tcpc_get_alert_status(void)
+{
+	/*
+	 * C0 & C1: TCPC is embedded in the EC and processes interrupts in the
+	 * chip code (it83xx/intc.c)
+	 */
+	return 0;
+}
+
+void board_reset_pd_mcu(void)
+{
+	/*
+	 * C0 & C1: TCPC is embedded in the EC and processes interrupts in the
+	 * chip code (it83xx/intc.c)
+	 */
+}
+
+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 && board_get_sub_board() ==
+							       SUB_BOARD_TYPEC);
+
+	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)) {
+		CPRINTF("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;
+}
+
+/**
+ * Handle PS185 HPD changing state.
+ */
+int debounced_hpd;
+
+static void ps185_hdmi_hpd_deferred(void)
+{
+	const int new_hpd = gpio_get_level(GPIO_PS185_EC_DP_HPD);
+
+	/* HPD status not changed, probably a glitch, just return. */
+	if (debounced_hpd == new_hpd)
+		return;
+
+	debounced_hpd = new_hpd;
+
+	gpio_set_level(GPIO_EC_DPBRDG_HPD_ODL, !debounced_hpd);
+	CPRINTS(debounced_hpd ? "HDMI plug" : "HDMI unplug");
+}
+DECLARE_DEFERRED(ps185_hdmi_hpd_deferred);
+
+#define PS185_HPD_DEBOUCE 250
+
+static void hdmi_hpd_interrupt(enum gpio_signal signal)
+{
+	hook_call_deferred(&ps185_hdmi_hpd_deferred_data, PS185_HPD_DEBOUCE);
+}
+
+/* HDMI/TYPE-C function shared subboard interrupt */
+void x_ec_interrupt(enum gpio_signal signal)
+{
+	int sub = board_get_sub_board();
+
+	if (sub == SUB_BOARD_TYPEC)
+		/* C1: PPC interrupt */
+		syv682x_interrupt(1);
+	else if (sub == SUB_BOARD_HDMI)
+		hdmi_hpd_interrupt(signal);
+	else
+		CPRINTS("Undetected subboard interrupt.");
+}
+
+int ppc_get_alert_status(int port)
+{
+	if (port == 0)
+		return gpio_get_level(GPIO_USB_C0_PPC_INT_ODL) == 0;
+	if (port == 1 && board_get_sub_board() == SUB_BOARD_TYPEC)
+		return gpio_get_level(GPIO_USB_C1_PPC_INT_ODL) == 0;
+
+	return 0;
+}
+
+#ifdef CONFIG_USB_PD_VBUS_MEASURE_ADC_EACH_PORT
+enum adc_channel board_get_vbus_adc(int port)
+{
+	if (port == 0)
+		return  ADC_VBUS_C0;
+	if (port == 1)
+		return  ADC_VBUS_C1;
+	CPRINTSUSB("Unknown vbus adc port id: %d", port);
+	return ADC_VBUS_C0;
+}
+#endif /* CONFIG_USB_PD_VBUS_MEASURE_ADC_EACH_PORT */