/* 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.
 */

/* Volteer family-specific configuration */
#include "charge_manager.h"
#include "charge_state.h"
#include "charger.h"
#include "common.h"
#include "driver/charger/isl9241_public.h"
#include "gpio.h"
#ifdef CONFIG_ZEPHYR
#include "usbc_config.h"
#endif
#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)

/* Charger Chip Configuration */
const struct charger_config_t chg_chips[] = {
	{
		.i2c_port = I2C_PORT_CHARGER,
		.i2c_addr_flags = ISL9241_ADDR_FLAGS,
		.drv = &isl9241_drv,
	},
};

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;
}

void board_overcurrent_event(int port, int is_overcurrented)
{
	/* Note that the level is inverted because the pin is active low. */
	switch (port) {
	case USBC_PORT_C0:
		gpio_set_level(GPIO_USB_C0_OC_ODL, !is_overcurrented);
		break;
	case USBC_PORT_C1:
		gpio_set_level(GPIO_USB_C1_OC_ODL, !is_overcurrented);
		break;
	}
}