/* 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.
 */

/* 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/als_tcs3400.h"
#include "driver/bc12/pi3usb9201.h"
#include "driver/ppc/syv682x.h"
#include "driver/sync.h"
#include "driver/tcpm/ps8xxx.h"
#include "driver/tcpm/rt1715.h"
#include "driver/tcpm/tcpci.h"
#include "extpower.h"
#include "fan.h"
#include "fan_chip.h"
#include "gpio.h"
#include "hooks.h"
#include "keyboard_raw.h"
#include "keyboard_scan.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_mux.h"
#include "usb_pd.h"
#include "usb_pd_tbt.h"
#include "usb_pd_tcpm.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)

static const struct ec_response_keybd_config volet_kb = {
	.num_top_row_keys = 10,
	.action_keys = {
		TK_BACK,		/* T1 */
		TK_REFRESH,		/* T2 */
		TK_FULLSCREEN,		/* T3 */
		TK_OVERVIEW,		/* T4 */
		TK_SNAPSHOT,		/* T5 */
		TK_BRIGHTNESS_DOWN,	/* T6 */
		TK_BRIGHTNESS_UP,	/* T7 */
		TK_VOL_MUTE,		/* T8 */
		TK_VOL_DOWN,		/* T9 */
		TK_VOL_UP,		/* T10 */
	},
	.capabilities = KEYBD_CAP_SCRNLOCK_KEY,
};

static const struct ec_response_keybd_config volet_kb_num = {
	.num_top_row_keys = 10,
	.action_keys = {
		TK_BACK,		/* T1 */
		TK_REFRESH,		/* T2 */
		TK_FULLSCREEN,		/* T3 */
		TK_OVERVIEW,		/* T4 */
		TK_SNAPSHOT,		/* T5 */
		TK_BRIGHTNESS_DOWN,	/* T6 */
		TK_BRIGHTNESS_UP,	/* T7 */
		TK_VOL_MUTE,		/* T8 */
		TK_VOL_DOWN,		/* T9 */
		TK_VOL_UP,		/* T10 */
	},
	.capabilities = KEYBD_CAP_SCRNLOCK_KEY | KEYBD_CAP_NUMERIC_KEYPAD,
};

__override const struct ec_response_keybd_config
*board_vivaldi_keybd_config(void)
{
	if (!ec_cfg_has_numeric_pad())
		return &volet_kb;
	else
		return &volet_kb_num;
}

/* Keyboard scan setting */
__override struct keyboard_scan_config keyscan_config = {
	/* Increase from 50 us, because KSO_02 passes through the H1. */
	.output_settle_us = 80,
	/* Other values should be the same as the default configuration. */
	.debounce_down_us = 9 * MSEC,
	.debounce_up_us = 30 * MSEC,
	.scan_period_us = 3 * MSEC,
	.min_post_scan_delay_us = 1000,
	.poll_timeout_us = 100 * MSEC,
	.actual_key_mask = {
		0x1c, 0xfe, 0xff, 0xff, 0xff, 0xf5, 0xff,
		0xa4, 0xff, 0xfe, 0x55, 0xfe, 0xff, 0xff,
		0xff, /* full set */
	},
};

/*
 * We have total 30 pins for keyboard connecter {-1, -1} mean
 * the N/A pin that don't consider it and reserve index 0 area
 * that we don't have pin 0.
 */
const int keyboard_factory_scan_pins[][2] = {
	{-1, -1}, {0, 5}, {1, 1}, {1, 0}, {0, 6},
	{0, 7}, {-1, -1}, {-1, -1}, {1, 4}, {1, 3},
	{-1, -1}, {1, 6}, {1, 7}, {3, 1}, {2, 0},
	{1, 5}, {2, 6}, {2, 7}, {2, 1}, {2, 4},
	{2, 5}, {1, 2}, {2, 3}, {2, 2}, {3, 0},
	{-1, -1}, {0, 4}, {-1, -1}, {8, 2}, {-1, -1},
	{-1, -1},
};
const int keyboard_factory_scan_pins_used =
		ARRAY_SIZE(keyboard_factory_scan_pins);

__override uint32_t board_override_feature_flags0(uint32_t flags0)
{
	/*
	 * Remove keyboard backlight feature for devices that don't support it.
	 */
	if (!ec_cfg_has_keyboard_backlight())
		return (flags0 & ~EC_FEATURE_MASK_0(EC_FEATURE_PWM_KEYB));
	else
		return flags0;
}

/******************************************************************************/
/*
 * 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,
};

/******************************************************************************/
/* 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
 * reference that temperature and fan settings
 * are derived from data in b/167523658#39
 */
const struct fan_rpm fan_rpm_0 = {
	.rpm_min = 2100,
	.rpm_start = 2100,
	.rpm_max = 5800,
};

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

/******************************************************************************/
/* EC thermal management configuration */

/*
 * Reference that temperature and fan settings
 * are derived from data in b/167523658#39
 */
const static struct ec_thermal_config thermal_cpu = {
	.temp_host = {
		[EC_TEMP_THRESH_HIGH] = C_TO_K(75),
		[EC_TEMP_THRESH_HALT] = C_TO_K(85),
	},
	.temp_host_release = {
		[EC_TEMP_THRESH_HIGH] = C_TO_K(68),
	},
	.temp_fan_off = C_TO_K(25),
	.temp_fan_max = C_TO_K(90),
};

struct ec_thermal_config thermal_params[] = {
	[TEMP_SENSOR_1_CHARGER]			= thermal_cpu,
	[TEMP_SENSOR_2_PP3300_REGULATOR]	= thermal_cpu,
	[TEMP_SENSOR_3_DDR_SOC]			= thermal_cpu,
	[TEMP_SENSOR_4_FAN]			= thermal_cpu,
};
BUILD_ASSERT(ARRAY_SIZE(thermal_params) == TEMP_SENSOR_COUNT);

/******************************************************************************/
/* 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 = "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)
{
	if (ec_cfg_has_keyboard_backlight())
		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)
{
	if (ec_cfg_has_keyboard_backlight())
		gpio_set_level(GPIO_EC_KB_BL_EN, 0);
}
DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, kb_backlight_disable, HOOK_PRIO_DEFAULT);

static void ps8815_reset(void)
{
	int val;

	gpio_set_level(GPIO_USB_C1_RT_RST_ODL, 0);
	msleep(GENERIC_MAX(PS8XXX_RESET_DELAY_MS,
			   PS8815_PWR_H_RST_H_DELAY_MS));
	gpio_set_level(GPIO_USB_C1_RT_RST_ODL, 1);
	msleep(PS8815_FW_INIT_DELAY_MS);

	/*
	 * b/144397088
	 * ps8815 firmware 0x01 needs special configuration
	 */

	CPRINTS("%s: patching ps8815 registers", __func__);

	if (i2c_read8(I2C_PORT_USB_C1,
		      PS8751_I2C_ADDR1_P2_FLAGS, 0x0f, &val) == EC_SUCCESS)
		CPRINTS("ps8815: reg 0x0f was %02x", val);

	if (i2c_write8(I2C_PORT_USB_C1,
		       PS8751_I2C_ADDR1_P2_FLAGS, 0x0f, 0x31) == EC_SUCCESS)
		CPRINTS("ps8815: reg 0x0f set to 0x31");

	if (i2c_read8(I2C_PORT_USB_C1,
		      PS8751_I2C_ADDR1_P2_FLAGS, 0x0f, &val) == EC_SUCCESS)
		CPRINTS("ps8815: reg 0x0f now %02x", val);
}

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.
	 */
	ps8815_reset();
	usb_mux_hpd_update(USBC_PORT_C1, USB_PD_MUX_HPD_LVL_DEASSERTED |
					 USB_PD_MUX_HPD_IRQ_DEASSERTED);
}

/******************************************************************************/
/* 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,
		.frs_en = GPIO_USB_C0_FRS_EN,
	},
	[USBC_PORT_C1] = {
		.i2c_port = I2C_PORT_USB_C1,
		.i2c_addr_flags = SYV682X_ADDR0_FLAGS,
		.drv = &syv682x_drv,
		.frs_en = GPIO_USB_C1_FRS_EN,
	},
};
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;
	}
}

__override void board_cbi_init(void)
{
	if ((!IS_ENABLED(TEST_BUILD) && !ec_cfg_has_numeric_pad())) {
		keyboard_raw_set_cols(KEYBOARD_COLS_NO_KEYPAD);
		/* Search key is moved back to col=1,row=0 */
		keyscan_config.actual_key_mask[0] = 0x14;
		keyscan_config.actual_key_mask[1] = 0xff;
		keyscan_config.actual_key_mask[11] = 0xfa;
		keyscan_config.actual_key_mask[12] = 0xca;
	}
}

/******************************************************************************/
/* BC1.2 charger detect configuration */
const struct pi3usb9201_config_t pi3usb9201_bc12_chips[] = {
	[USBC_PORT_C0] = {
		.i2c_port = I2C_PORT_USB_C0,
		.i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
	},
	[USBC_PORT_C1] = {
		.i2c_port = I2C_PORT_USB_C1,
		.i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
	},
};
BUILD_ASSERT(ARRAY_SIZE(pi3usb9201_bc12_chips) == USBC_PORT_COUNT);

/******************************************************************************/
/* USBC TCPC configuration */
const struct  tcpc_config_t tcpc_config[] = {
	[USBC_PORT_C0] = {
		.bus_type = EC_BUS_TYPE_I2C,
		.i2c_info = {
			.port = I2C_PORT_USB_C0,
			.addr_flags = RT1715_I2C_ADDR_FLAGS,
		},
		.drv = &rt1715_tcpm_drv,
	},
	[USBC_PORT_C1] = {
		.bus_type = EC_BUS_TYPE_I2C,
		.i2c_info = {
			.port = I2C_PORT_USB_C1,
			.addr_flags = PS8751_I2C_ADDR1_FLAGS,
		},
		.flags = TCPC_FLAGS_TCPCI_REV2_0 |
			TCPC_FLAGS_TCPCI_REV2_0_NO_VSAFE0V,
		.drv = &ps8xxx_tcpm_drv,
	},
};
BUILD_ASSERT(ARRAY_SIZE(tcpc_config) == USBC_PORT_COUNT);
BUILD_ASSERT(CONFIG_USB_PD_PORT_MAX_COUNT == USBC_PORT_COUNT);

/*
 * USB3 DB mux configuration - the top level mux still needs to be set to the
 * virtual_usb_mux_driver so the AP gets notified of mux changes and updates
 * the TCSS configuration on state changes.
 */
static const struct usb_mux usbc1_usb3_db_retimer = {
	.usb_port = USBC_PORT_C1,
	.driver = &tcpci_tcpm_usb_mux_driver,
	.hpd_update = &ps8xxx_tcpc_update_hpd_status,
	.next_mux = NULL,
};

/******************************************************************************/
/* USBC mux configuration - Tiger Lake includes internal mux */
const struct usb_mux usb_muxes[] = {
	[USBC_PORT_C0] = {
		.usb_port = USBC_PORT_C0,
		.driver = &virtual_usb_mux_driver,
		.hpd_update = &virtual_hpd_update,
	},
	[USBC_PORT_C1] = {
		.usb_port = USBC_PORT_C1,
		.driver = &virtual_usb_mux_driver,
		.hpd_update = &virtual_hpd_update,
		.next_mux = &usbc1_usb3_db_retimer,
	},
};
BUILD_ASSERT(ARRAY_SIZE(usb_muxes) == USBC_PORT_COUNT);

static void board_tcpc_init(void)
{
	/* Don't reset TCPCs after initial reset */
	if (!system_jumped_late())
		board_reset_pd_mcu();

	/* Enable PPC interrupts. */
	gpio_enable_interrupt(GPIO_USB_C0_PPC_INT_ODL);
	gpio_enable_interrupt(GPIO_USB_C1_PPC_INT_ODL);

	/* Enable TCPC interrupts. */
	gpio_enable_interrupt(GPIO_USB_C0_TCPC_INT_ODL);
	gpio_enable_interrupt(GPIO_USB_C1_TCPC_INT_ODL);

	/* Enable BC1.2 interrupts. */
	gpio_enable_interrupt(GPIO_USB_C0_BC12_INT_ODL);
	gpio_enable_interrupt(GPIO_USB_C1_BC12_INT_ODL);
}
DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_CHIPSET);

/******************************************************************************/
/* TCPC support routines */
uint16_t tcpc_get_alert_status(void)
{
	uint16_t status = 0;

	/*
	 * Check which port has the ALERT line set
	 */
	if (!gpio_get_level(GPIO_USB_C0_TCPC_INT_ODL))
		status |= PD_STATUS_TCPC_ALERT_0;
	if (!gpio_get_level(GPIO_USB_C1_TCPC_INT_ODL))
		status |= PD_STATUS_TCPC_ALERT_1;

	return status;
}

int ppc_get_alert_status(int port)
{
	if (port == USBC_PORT_C0)
		return gpio_get_level(GPIO_USB_C0_PPC_INT_ODL) == 0;
	else
		return gpio_get_level(GPIO_USB_C1_PPC_INT_ODL) == 0;
}