/* Copyright 2019 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.
 */

/* Trembyle board configuration */

#include "adc.h"
#include "button.h"
#include "charger.h"
#include "cbi_ec_fw_config.h"
#include "driver/accelgyro_bmi_common.h"
#include "driver/accel_kionix.h"
#include "driver/accel_kx022.h"
#include "driver/retimer/pi3dpx1207.h"
#include "driver/retimer/pi3hdx1204.h"
#include "driver/retimer/ps8811.h"
#include "driver/temp_sensor/sb_tsi.h"
#include "driver/usb_mux/amd_fp5.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 "temp_sensor/thermistor.h"
#include "temp_sensor.h"
#include "usb_charge.h"
#include "usb_mux.h"

#include "gpio_list.h"

#define CPRINTSUSB(format, args...) cprints(CC_USBCHARGE, format, ## args)
#define CPRINTFUSB(format, args...) cprintf(CC_USBCHARGE, format, ## args)

/* Motion sensors */
static struct mutex g_lid_mutex;
static struct mutex g_base_mutex;

/* sensor private data */
static struct kionix_accel_data g_kx022_data;
static struct bmi_drv_data_t g_bmi160_data;

/* TODO(gcc >= 5.0) Remove the casts to const pointer at rot_standard_ref */
struct motion_sensor_t motion_sensors[] = {
	[LID_ACCEL] = {
	 .name = "Lid Accel",
	 .active_mask = SENSOR_ACTIVE_S0_S3,
	 .chip = MOTIONSENSE_CHIP_KX022,
	 .type = MOTIONSENSE_TYPE_ACCEL,
	 .location = MOTIONSENSE_LOC_LID,
	 .drv = &kionix_accel_drv,
	 .mutex = &g_lid_mutex,
	 .drv_data = &g_kx022_data,
	 .port = I2C_PORT_SENSOR,
	 .i2c_spi_addr_flags = KX022_ADDR1_FLAGS,
	 .rot_standard_ref = NULL,
	 .default_range = 2, /* g, enough for laptop. */
	 .min_frequency = KX022_ACCEL_MIN_FREQ,
	 .max_frequency = KX022_ACCEL_MAX_FREQ,
	 .config = {
		 /* EC use accel for angle detection */
		 [SENSOR_CONFIG_EC_S0] = {
			.odr = 10000 | ROUND_UP_FLAG,
			.ec_rate = 100,
		 },
		/* EC use accel for angle detection */
		[SENSOR_CONFIG_EC_S3] = {
			.odr = 10000 | ROUND_UP_FLAG,
		},
	 },
	},

	[BASE_ACCEL] = {
	 .name = "Base Accel",
	 .active_mask = SENSOR_ACTIVE_S0_S3,
	 .chip = MOTIONSENSE_CHIP_BMI160,
	 .type = MOTIONSENSE_TYPE_ACCEL,
	 .location = MOTIONSENSE_LOC_BASE,
	 .drv = &bmi160_drv,
	 .mutex = &g_base_mutex,
	 .drv_data = &g_bmi160_data,
	 .port = I2C_PORT_SENSOR,
	 .i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
	 .default_range = 4, /* g, to meet CDD 7.3.1/C-1-4 reqs.*/
	 .rot_standard_ref = NULL,
	 .min_frequency = BMI_ACCEL_MIN_FREQ,
	 .max_frequency = BMI_ACCEL_MAX_FREQ,
	 .config = {
		 /* EC use accel for angle detection */
		 [SENSOR_CONFIG_EC_S0] = {
			.odr = 10000 | ROUND_UP_FLAG,
			.ec_rate = 100,
		 },
		 /* EC use accel for angle detection */
		 [SENSOR_CONFIG_EC_S3] = {
			.odr = 10000 | ROUND_UP_FLAG,
		 },
	 },
	},

	[BASE_GYRO] = {
	 .name = "Base Gyro",
	 .active_mask = SENSOR_ACTIVE_S0_S3,
	 .chip = MOTIONSENSE_CHIP_BMI160,
	 .type = MOTIONSENSE_TYPE_GYRO,
	 .location = MOTIONSENSE_LOC_BASE,
	 .drv = &bmi160_drv,
	 .mutex = &g_base_mutex,
	 .drv_data = &g_bmi160_data,
	 .port = I2C_PORT_SENSOR,
	 .i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
	 .default_range = 1000, /* dps */
	 .rot_standard_ref = NULL,
	 .min_frequency = BMI_GYRO_MIN_FREQ,
	 .max_frequency = BMI_GYRO_MAX_FREQ,
	},
};

unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);

const struct power_signal_info power_signal_list[] = {
	[X86_SLP_S3_N] = {
		.gpio = GPIO_PCH_SLP_S3_L,
		.flags = POWER_SIGNAL_ACTIVE_HIGH,
		.name = "SLP_S3_DEASSERTED",
	},
	[X86_SLP_S5_N] = {
		.gpio = GPIO_PCH_SLP_S5_L,
		.flags = POWER_SIGNAL_ACTIVE_HIGH,
		.name = "SLP_S5_DEASSERTED",
	},
	[X86_S0_PGOOD] = {
		.gpio = GPIO_S0_PGOOD,
		.flags = POWER_SIGNAL_ACTIVE_HIGH,
		.name = "S0_PGOOD",
	},
	[X86_S5_PGOOD] = {
		.gpio = GPIO_S5_PGOOD,
		.flags = POWER_SIGNAL_ACTIVE_HIGH,
		.name = "S5_PGOOD",
	},
};
BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);

const struct pwm_t pwm_channels[] = {
	[PWM_CH_KBLIGHT] = {
		.channel = 3,
		.flags = PWM_CONFIG_DSLEEP,
		.freq = 100,
	},
	[PWM_CH_FAN] = {
		.channel = 2,
		.flags = PWM_CONFIG_OPEN_DRAIN,
		.freq = 25000,
	},
};
BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_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);

const int usb_port_enable[USBA_PORT_COUNT] = {
	IOEX_EN_USB_A0_5V,
	IOEX_EN_USB_A1_5V_DB,
};

const struct pi3hdx1204_tuning pi3hdx1204_tuning = {
	.eq_ch0_ch1_offset = PI3HDX1204_EQ_DB710,
	.eq_ch2_ch3_offset = PI3HDX1204_EQ_DB710,
	.vod_offset = PI3HDX1204_VOD_130_ALL_CHANNELS,
	.de_offset = PI3HDX1204_DE_DB_MINUS5,
};

/*****************************************************************************
 * Board suspend / resume
 */
#define PS8811_ACCESS_RETRIES 2

static void board_chipset_resume(void)
{
	int rv;
	int retry;

	/* Turn on the retimers */
	ioex_set_level(IOEX_USB_A0_RETIMER_EN, 1);
	ioex_set_level(IOEX_USB_A1_RETIMER_EN, 1);

	/* USB-A0 can run with default settings */
	for (retry = 0; retry < PS8811_ACCESS_RETRIES; ++retry) {
		int val;

		rv = i2c_read8(I2C_PORT_USBA0,
				PS8811_I2C_ADDR_FLAGS3 + PS8811_REG_PAGE1,
				PS8811_REG1_USB_BEQ_LEVEL, &val);
		if (!rv)
			break;
	}
	if (rv) {
		ioex_set_level(IOEX_USB_A0_RETIMER_EN, 0);
		CPRINTSUSB("A0: PS8811 not detected");
	}

	/* USB-A1 needs to increase gain to get over MB/DB connector */
	for (retry = 0; retry < PS8811_ACCESS_RETRIES; ++retry) {
		rv = i2c_write8(I2C_PORT_USBA1,
				PS8811_I2C_ADDR_FLAGS3 + PS8811_REG_PAGE1,
				PS8811_REG1_USB_BEQ_LEVEL,
				PS8811_BEQ_I2C_LEVEL_UP_13DB |
				PS8811_BEQ_PIN_LEVEL_UP_18DB);
		if (!rv)
			break;
	}
	if (rv) {
		ioex_set_level(IOEX_USB_A1_RETIMER_EN, 0);
		CPRINTSUSB("A1: PS8811 not detected");
	}

	if (ec_config_has_hdmi_retimer_pi3hdx1204()) {
		pi3hdx1204_enable(I2C_PORT_TCPC1,
				  PI3HDX1204_I2C_ADDR_FLAGS,
				  1);
	}
}
DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT);

static void board_chipset_suspend(void)
{
	ioex_set_level(IOEX_USB_A0_RETIMER_EN, 0);
	ioex_set_level(IOEX_USB_A1_RETIMER_EN, 0);

	if (ec_config_has_hdmi_retimer_pi3hdx1204()) {
		pi3hdx1204_enable(I2C_PORT_TCPC1,
				  PI3HDX1204_I2C_ADDR_FLAGS,
				  0);
	}
}
DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT);

/*****************************************************************************
 * USB-C MUX/Retimer dynamic configuration
 */
static void setup_mux(void)
{
	if (ec_config_has_usbc1_retimer_ps8802()) {
		/*
		 * Main MUX is PS8802, secondary MUX is modified FP5
		 *
		 * Replace usb_muxes[USBC_PORT_C1] with the PS8802
		 * table entry.
		 */
		memcpy(&usb_muxes[USBC_PORT_C1],
		       &usbc1_ps8802,
		       sizeof(struct usb_mux));

		/* Set the AMD FP5 as the secondary MUX */
		usb_muxes[USBC_PORT_C1].next_mux = &usbc1_amd_fp5_usb_mux;

		/* Don't have the AMD FP5 flip */
		usbc1_amd_fp5_usb_mux.flags = USB_MUX_FLAG_SET_WITHOUT_FLIP;

	} else if (ec_config_has_usbc1_retimer_ps8818()) {
		/*
		 * Main MUX is FP5, secondary MUX is PS8818
		 *
		 * Replace usb_muxes[USBC_PORT_C1] with the AMD FP5
		 * table entry.
		 */
		memcpy(&usb_muxes[USBC_PORT_C1],
		       &usbc1_amd_fp5_usb_mux,
		       sizeof(struct usb_mux));

		/* Set the PS8818 as the secondary MUX */
		usb_muxes[USBC_PORT_C1].next_mux = &usbc1_ps8818;
	}
}

const struct pi3dpx1207_usb_control pi3dpx1207_controls[] = {
	[USBC_PORT_C0] = {
		.enable_gpio = IOEX_USB_C0_DATA_EN,
		.dp_enable_gpio = GPIO_USB_C0_IN_HPD,
	},
	[USBC_PORT_C1] = {
	},
};
BUILD_ASSERT(ARRAY_SIZE(pi3dpx1207_controls) == USBC_PORT_COUNT);

const struct usb_mux usbc0_pi3dpx1207_usb_retimer = {
	.usb_port = USBC_PORT_C0,
	.i2c_port = I2C_PORT_TCPC0,
	.i2c_addr_flags = PI3DPX1207_I2C_ADDR_FLAGS,
	.driver = &pi3dpx1207_usb_retimer,
};

struct usb_mux usb_muxes[] = {
	[USBC_PORT_C0] = {
		.usb_port = USBC_PORT_C0,
		.i2c_port = I2C_PORT_USB_AP_MUX,
		.i2c_addr_flags = AMD_FP5_MUX_I2C_ADDR_FLAGS,
		.driver = &amd_fp5_usb_mux_driver,
		.next_mux = &usbc0_pi3dpx1207_usb_retimer,
	},
	[USBC_PORT_C1] = {
		/* Filled in dynamically at startup */
	},
};
BUILD_ASSERT(ARRAY_SIZE(usb_muxes) == USBC_PORT_COUNT);

/*****************************************************************************
 * Use FW_CONFIG to set correct configuration.
 */

int board_usbc1_retimer_inhpd = IOEX_USB_C1_HPD_IN_DB;

static void setup_v0_charger(void)
{
	chg_chips[0].i2c_port = I2C_PORT_CHARGER_V0;
}
/*
 * Use HOOK_PRIO_INIT_I2C so we re-map before charger_chips_init()
 * talks to the charger.
 */
DECLARE_HOOK(HOOK_INIT, setup_v0_charger, HOOK_PRIO_INIT_I2C);

static void setup_fw_config(void)
{
	/* Enable Gyro interrupts */
	gpio_enable_interrupt(GPIO_6AXIS_INT_L);

	setup_mux();

	if (ec_config_has_mst_hub_rtd2141b())
		ioex_enable_interrupt(IOEX_MST_HPD_OUT);

	if (ec_config_has_hdmi_conn_hpd())
		ioex_enable_interrupt(IOEX_HDMI_CONN_HPD_3V3_DB);
}
/* Use HOOK_PRIO_INIT_I2C + 2 to be after ioex_init(). */
DECLARE_HOOK(HOOK_INIT, setup_fw_config, HOOK_PRIO_INIT_I2C + 2);

/*****************************************************************************
 * Fan
 */

/* 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 = -1,
};
const struct fan_rpm fan_rpm_0 = {
	.rpm_min = 3000,
	.rpm_start = 3000,
	.rpm_max = 4900,
};
const struct fan_t fans[] = {
	[FAN_CH_0] = {
		.conf = &fan_conf_0,
		.rpm = &fan_rpm_0,
	},
};
BUILD_ASSERT(ARRAY_SIZE(fans) == FAN_CH_COUNT);

int board_get_temp(int idx, int *temp_k)
{
	int mv;
	int temp_c;
	enum adc_channel channel;

	/* idx is the sensor index set in board temp_sensors[] */
	switch (idx) {
	case TEMP_SENSOR_CHARGER:
		channel = ADC_TEMP_SENSOR_CHARGER;
		break;
	case TEMP_SENSOR_SOC:
		/* thermistor is not powered in G3 */
		if (chipset_in_state(CHIPSET_STATE_HARD_OFF))
			return EC_ERROR_NOT_POWERED;

		channel = ADC_TEMP_SENSOR_SOC;
		break;
	default:
		return EC_ERROR_INVAL;
	}

	mv = adc_read_channel(channel);
	if (mv < 0)
		return EC_ERROR_INVAL;

	temp_c = thermistor_linear_interpolate(mv, &thermistor_info);
	*temp_k = C_TO_K(temp_c);
	return EC_SUCCESS;
}

const struct adc_t adc_channels[] = {
	[ADC_TEMP_SENSOR_CHARGER] = {
		.name = "CHARGER",
		.input_ch = NPCX_ADC_CH2,
		.factor_mul = ADC_MAX_VOLT,
		.factor_div = ADC_READ_MAX + 1,
		.shift = 0,
	},
	[ADC_TEMP_SENSOR_SOC] = {
		.name = "SOC",
		.input_ch = NPCX_ADC_CH3,
		.factor_mul = ADC_MAX_VOLT,
		.factor_div = ADC_READ_MAX + 1,
		.shift = 0,
	},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);

const struct temp_sensor_t temp_sensors[] = {
	[TEMP_SENSOR_CHARGER] = {
		.name = "Charger",
		.type = TEMP_SENSOR_TYPE_BOARD,
		.read = board_get_temp,
		.idx = TEMP_SENSOR_CHARGER,
	},
	[TEMP_SENSOR_SOC] = {
		.name = "SOC",
		.type = TEMP_SENSOR_TYPE_BOARD,
		.read = board_get_temp,
		.idx = TEMP_SENSOR_SOC,
	},
	[TEMP_SENSOR_CPU] = {
		.name = "CPU",
		.type = TEMP_SENSOR_TYPE_CPU,
		.read = sb_tsi_get_val,
		.idx = 0,
	},
};
BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);

const static struct ec_thermal_config thermal_thermistor = {
	.temp_host = {
		[EC_TEMP_THRESH_HIGH] = C_TO_K(90),
		[EC_TEMP_THRESH_HALT] = C_TO_K(92),
	},
	.temp_host_release = {
		[EC_TEMP_THRESH_HIGH] = C_TO_K(80),
	},
	.temp_fan_off = C_TO_K(25),
	.temp_fan_max = C_TO_K(58),
};

const static struct ec_thermal_config thermal_cpu = {
	.temp_host = {
		[EC_TEMP_THRESH_HIGH] = C_TO_K(90),
		[EC_TEMP_THRESH_HALT] = C_TO_K(92),
	},
	.temp_host_release = {
		[EC_TEMP_THRESH_HIGH] = C_TO_K(80),
	},
	.temp_fan_off = C_TO_K(25),
	.temp_fan_max = C_TO_K(58),
};

struct ec_thermal_config thermal_params[TEMP_SENSOR_COUNT];

static void setup_fans(void)
{
	thermal_params[TEMP_SENSOR_CHARGER] = thermal_thermistor;
	thermal_params[TEMP_SENSOR_SOC] = thermal_thermistor;
	thermal_params[TEMP_SENSOR_CPU] = thermal_cpu;
}
DECLARE_HOOK(HOOK_INIT, setup_fans, HOOK_PRIO_DEFAULT);

/*****************************************************************************
 * MST hub
 */

static void mst_hpd_handler(void)
{
	int hpd = 0;

	/*
	 * Ensure level on GPIO_DP1_HPD matches IOEX_MST_HPD_OUT, in case
	 * we got out of sync.
	 */
	ioex_get_level(IOEX_MST_HPD_OUT, &hpd);
	gpio_set_level(GPIO_DP1_HPD, hpd);
	ccprints("MST HPD %d", hpd);
}
DECLARE_DEFERRED(mst_hpd_handler);

void mst_hpd_interrupt(enum ioex_signal signal)
{
	/*
	 * Goal is to pass HPD through from DB OPT3 MST hub to AP's DP1.
	 * Immediately invert GPIO_DP1_HPD, to pass through the edge on
	 * IOEX_MST_HPD_OUT. Then check level after 2 msec debounce.
	 */
	int hpd = !gpio_get_level(GPIO_DP1_HPD);

	gpio_set_level(GPIO_DP1_HPD, hpd);
	hook_call_deferred(&mst_hpd_handler_data, (2 * MSEC));
}

static void hdmi_hpd_handler(void)
{
	int hpd = 0;

	/* Pass HPD through from DB OPT1 HDMI connector to AP's DP1. */
	ioex_get_level(IOEX_HDMI_CONN_HPD_3V3_DB, &hpd);
	gpio_set_level(GPIO_DP1_HPD, hpd);
	ccprints("HDMI HPD %d", hpd);
}
DECLARE_DEFERRED(hdmi_hpd_handler);

void hdmi_hpd_interrupt(enum ioex_signal signal)
{
	/* Debounce for 2 msec. */
	hook_call_deferred(&hdmi_hpd_handler_data, (2 * MSEC));
}