/* 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.
 */

#include "battery.h"
#include "button.h"
#include "charge_manager.h"
#include "charge_ramp.h"
#include "charge_state_v2.h"
#include "charger.h"
#include "common.h"
#include "compile_time_macros.h"
#include "console.h"
#include "gpio.h"
#include "gpio_signal.h"
#include "hooks.h"
#include "driver/accel_lis2dw12.h"
#include "driver/accelgyro_lsm6dsm.h"
#include "driver/accelgyro_lsm6dso.h"
#include "driver/als_tcs3400.h"
#include "fw_config.h"
#include "hooks.h"
#include "lid_switch.h"
#include "power_button.h"
#include "power.h"
#include "registers.h"
#include "switch.h"
#include "tablet_mode.h"
#include "throttle_ap.h"
#include "usbc_config.h"
#include "keyboard_raw.h"
#include "keyboard_scan.h"

#include "gpio_list.h" /* Must come after other header files. */

/* Console output macros */
#define CPRINTF(format, args...) cprintf(CC_CHARGER, format, ##args)
#define CPRINTS(format, args...) cprints(CC_CHARGER, format, ##args)

/******************************************************************************/
/* USB-A charging control */

const int usb_port_enable[USB_PORT_COUNT] = {
	GPIO_EN_PP5000_USBA_R,
};
BUILD_ASSERT(ARRAY_SIZE(usb_port_enable) == USB_PORT_COUNT);

/******************************************************************************/

__override void board_cbi_init(void)
{
	config_usb_db_type();
}

void board_init(void)
{
	if (!ec_cfg_has_tabletmode()) {
		/* applies only to clamshell devices */
		gpio_set_flags(GPIO_VOLUME_DOWN_L, GPIO_INPUT | GPIO_PULL_DOWN);
		gpio_set_flags(GPIO_VOLUME_UP_L, GPIO_INPUT | GPIO_PULL_DOWN);
		button_disable_gpio(BUTTON_VOLUME_UP);
		button_disable_gpio(BUTTON_VOLUME_DOWN);
	}
	if (!ec_cfg_has_keyboard_number_pad()) {
		/* Disable scanning KSO13 and 14 if keypad isn't present. */
		keyboard_raw_set_cols(KEYBOARD_COLS_NO_KEYPAD);
	} else {
		/* Setting scan mask KSO11, KSO12, KSO13 and KSO14 */
		keyscan_config.actual_key_mask[11] = 0xfe;
		keyscan_config.actual_key_mask[12] = 0xff;
		keyscan_config.actual_key_mask[13] = 0xff;
		keyscan_config.actual_key_mask[14] = 0xff;
	}
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);

/* Called on AP S3 -> S0 transition */
static void board_chipset_resume(void)
{
	/* Allow keyboard backlight to be enabled */
	if (ec_cfg_has_keyboard_backlight() == 1) {
		/* GPIO_EC_KB_BL_EN_L is low active pin */
		gpio_set_level(GPIO_EC_KB_BL_EN_L, 0);
	}
}
DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT);

/* Called on AP S0 -> S3 transition */
static void board_chipset_suspend(void)
{
	/* Turn off the keyboard backlight if it's on. */
	if (ec_cfg_has_keyboard_backlight() == 1) {
		/* GPIO_EC_KB_BL_EN_L is low active pin */
		gpio_set_level(GPIO_EC_KB_BL_EN_L, 1);
	}
}
DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT);

#ifdef CONFIG_CHARGE_RAMP_SW

/*
 * TODO: tune this threshold
 */

#define BC12_MIN_VOLTAGE 4400

/**
 * Return true if VBUS is too low
 */
int board_is_vbus_too_low(int port, enum chg_ramp_vbus_state ramp_state)
{
	int voltage;

	if (charger_get_vbus_voltage(port, &voltage))
		voltage = 0;

	if (voltage == 0) {
		CPRINTS("%s: must be disconnected", __func__);
		return 1;
	}

	if (voltage < BC12_MIN_VOLTAGE) {
		CPRINTS("%s: port %d: vbus %d lower than %d", __func__, port,
			voltage, BC12_MIN_VOLTAGE);
		return 1;
	}

	return 0;
}

#endif /* CONFIG_CHARGE_RAMP_SW */

enum battery_present battery_hw_present(void)
{
	/* The GPIO is low when the battery is physically present */
	return gpio_get_level(GPIO_EC_BATT_PRES_ODL) ? BP_NO : BP_YES;
}

__override void board_set_charge_limit(int port, int supplier, int charge_ma,
				       int max_ma, int charge_mv)
{
	/*
	 * Follow OEM request to limit the input current to
	 * 95% negotiated limit.
	 */
	charge_ma = charge_ma * 95 / 100;

	charge_set_input_current_limit(
		MAX(charge_ma, CONFIG_CHARGER_INPUT_CURRENT), charge_mv);
}