/* Copyright 2020 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 board-specific configuration */

#include "button.h"
#include "common.h"
#include "accelgyro.h"
#include "cbi_ec_fw_config.h"
#include "driver/accel_bma2x2.h"
#include "driver/accelgyro_bmi160.h"
#include "driver/ppc/syv682x.h"
#include "driver/retimer/bb_retimer.h"
#include "driver/sync.h"
#include "extpower.h"
#include "fan.h"
#include "fan_chip.h"
#include "gpio.h"
#include "hooks.h"
#include "lid_switch.h"
#include "power.h"
#include "power_button.h"
#include "pwm.h"
#include "pwm_chip.h"
#include "switch.h"
#include "system.h"
#include "task.h"
#include "tablet_mode.h"
#include "throttle_ap.h"
#include "uart.h"
#include "usb_pd_tbt.h"
#include "usbc_ppc.h"
#include "util.h"

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

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

/*
 * FW_CONFIG defaults for Voxel if the CBI data is not initialized.
 */
union volteer_cbi_fw_config fw_config_defaults = {
	.usb_db = DB_USB4_GEN3,
};

__override enum tbt_compat_cable_speed board_get_max_tbt_speed(int port)
{
	/* Routing length exceeds 205mm prior to connection to re-timer */
	if (port == USBC_PORT_C1)
		return TBT_SS_U32_GEN1_GEN2;

	/*
	 * Thunderbolt-compatible mode not supported
	 *
	 * TODO (b/147726366): All the USB-C ports need to support same speed.
	 * Need to fix once USB-C feature set is known for Volteer.
	 */
	return TBT_SS_RES_0;
}

__override bool board_is_tbt_usb4_port(int port)
{
	/*
	 * On Proto-1 only Port 1 supports TBT & USB4
	 *
	 * TODO (b/147732807): All the USB-C ports need to support same
	 * features. Need to fix once USB-C feature set is known for Volteer.
	 */
	return port == USBC_PORT_C1;
}

/******************************************************************************/
/* Physical fans. These are logically separate from pwm_channels. */

const struct fan_conf fan_conf_0 = {
	.flags = FAN_USE_RPM_MODE,
	.ch = MFT_CH_0,	/* Use MFT id to control fan */
	.pgood_gpio = -1,
	.enable_gpio = GPIO_EN_PP5000_FAN,
};

/*
 * Fan specs from datasheet:
 * Max speed 5900 rpm (+/- 7%), minimum duty cycle 30%.
 * Minimum speed not specified by RPM. Set minimum RPM to max speed (with
 * margin) x 30%.
 *    5900 x 1.07 x 0.30 = 1894, round up to 1900
 */
const struct fan_rpm fan_rpm_0 = {
	.rpm_min = 1900,
	.rpm_start = 1900,
	.rpm_max = 5900,
};

const struct fan_t fans[FAN_CH_COUNT] = {
	[FAN_CH_0] = {
		.conf = &fan_conf_0,
		.rpm = &fan_rpm_0,
	},
};

/******************************************************************************/
/* MFT channels. These are logically separate from pwm_channels. */
const struct mft_t mft_channels[] = {
	[MFT_CH_0] = {
		.module = NPCX_MFT_MODULE_1,
		.clk_src = TCKC_LFCLK,
		.pwm_id = PWM_CH_FAN,
	},
};
BUILD_ASSERT(ARRAY_SIZE(mft_channels) == MFT_CH_COUNT);

/******************************************************************************/
/* 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,
		.kbps = 1000,
		.scl = GPIO_EC_I2C1_USB_C0_SCL,
		.sda = GPIO_EC_I2C1_USB_C0_SDA,
	},
	{
		.name = "usb_c1",
		.port = I2C_PORT_USB_C1,
		.kbps = 1000,
		.scl = GPIO_EC_I2C2_USB_C1_SCL,
		.sda = GPIO_EC_I2C2_USB_C1_SDA,
	},
	{
		.name = "usb_0_mix",
		.port = I2C_PORT_USB_0_MIX,
		.kbps = 100,
		.scl = GPIO_EC_I2C3_USB_1_MIX_SCL,
		.sda = GPIO_EC_I2C3_USB_1_MIX_SDA,
	},
	{
		.name = "usb_1_mix",
		.port = I2C_PORT_USB_1_MIX,
		.kbps = 100,
		.scl = GPIO_EC_I2C4_USB_1_MIX_SCL,
		.sda = GPIO_EC_I2C4_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_FAN] = {
		.channel = 5,
		.flags = PWM_CONFIG_OPEN_DRAIN,
		.freq = 25000
	},
	[PWM_CH_KBLIGHT] = {
		.channel = 3,
		.flags = 0,
		/*
		 * Set PWM frequency to multiple of 50 Hz and 60 Hz to prevent
		 * flicker. Higher frequencies consume similar average power to
		 * lower PWM frequencies, but higher frequencies record a much
		 * lower maximum power.
		 */
		.freq = 2400,
	},
};
BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);

static void kb_backlight_enable(void)
{
	gpio_set_level(GPIO_EC_KB_BL_EN, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_RESUME, kb_backlight_enable, HOOK_PRIO_DEFAULT);

static void kb_backlight_disable(void)
{
	gpio_set_level(GPIO_EC_KB_BL_EN, 0);
}
DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, kb_backlight_disable, HOOK_PRIO_DEFAULT);

/* USBC mux configuration - Tiger Lake includes internal mux */
struct usb_mux usbc0_usb4_db_retimer = {
	.usb_port = USBC_PORT_C0,
	.driver = &bb_usb_retimer,
	.i2c_port = I2C_PORT_USB_0_MIX,
	.i2c_addr_flags = USBC_PORT_C0_BB_RETIMER_I2C_ADDR,
};

/*****************************************************************************
 * USB-C MUX/Retimer dynamic configuration.
 */

static void setup_mux(void)
{
	CPRINTS("C0 supports bb-retimer");

	/* USB-C port 0 have a retimer */
	usb_muxes[USBC_PORT_C0].next_mux = &usbc0_usb4_db_retimer;
}


void board_reset_pd_mcu(void)
{
	/*
	 * Only the Burnside Bridge retimers provide a reset pin, but this is
	 * already handled by the bb_retimer.c driver.
	 */
}

__override void board_cbi_init(void)
{
	/* TODO(b/159025739): Voxel: check FW_CONFIG fields for USB DB type */
	setup_mux();

	/* Reassign USB_C0_RT_RST_ODL */
	bb_controls[USBC_PORT_C0].shared_nvm = false;
	bb_controls[USBC_PORT_C0].usb_ls_en_gpio = GPIO_USB_C0_LS_EN;
	bb_controls[USBC_PORT_C0].retimer_rst_gpio = GPIO_USB_C0_RT_RST_ODL;
	bb_controls[USBC_PORT_C0].force_power_gpio = GPIO_USB_C0_RT_FORCE_PWR;
}

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

const int usb_port_enable[USB_PORT_COUNT] = {
	GPIO_EN_PP5000_USBA,
};

/******************************************************************************/
/* USBC PPC configuration */
struct ppc_config_t ppc_chips[] = {
	[USBC_PORT_C0] = {
		.i2c_port = I2C_PORT_USB_C0,
		.i2c_addr_flags = SYV682X_ADDR0_FLAGS,
		.drv = &syv682x_drv,
	},
	[USBC_PORT_C1] = {
		.i2c_port = I2C_PORT_USB_C1,
		.i2c_addr_flags = SYV682X_ADDR0_FLAGS,
		.drv = &syv682x_drv,
	},
};
BUILD_ASSERT(ARRAY_SIZE(ppc_chips) == USBC_PORT_COUNT);
unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips);

/******************************************************************************/
/* PPC support routines */
void ppc_interrupt(enum gpio_signal signal)
{
	switch (signal) {
	case GPIO_USB_C0_PPC_INT_ODL:
		syv682x_interrupt(USBC_PORT_C0);
		break;
	case GPIO_USB_C1_PPC_INT_ODL:
		syv682x_interrupt(USBC_PORT_C1);
	default:
		break;
	}
}