/* Copyright (c) 2014 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.
 */
/* Strago board-specific configuration */

#include "adc.h"
#include "adc_chip.h"
#include "als.h"
#include "button.h"
#include "charger.h"
#include "charge_manager.h"
#include "charge_state.h"
#include "console.h"
#include "driver/accel_kionix.h"
#include "driver/accel_kxcj9.h"
#include "driver/als_isl29035.h"
#include "driver/tcpm/tcpci.h"
#include "driver/temp_sensor/tmp432.h"
#include "extpower.h"
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
#include "i2c.h"
#include "lid_switch.h"
#include "math_util.h"
#include "motion_lid.h"
#include "motion_sense.h"
#include "pi3usb9281.h"
#include "power.h"
#include "power_button.h"
#include "pwm.h"
#include "pwm_chip.h"
#include "registers.h"
#include "spi.h"
#include "temp_sensor.h"
#include "temp_sensor_chip.h"
#include "thermal.h"
#include "usb_charge.h"
#include "usb_mux.h"
#include "usb_pd.h"
#include "usb_pd_tcpm.h"
#include "util.h"

#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args)
#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args)

/* Exchange status with PD MCU. */
static void pd_mcu_interrupt(enum gpio_signal signal)
{
#ifdef HAS_TASK_PDCMD
	/* Exchange status with PD MCU to determine interrupt cause */
	host_command_pd_send_status(0);
#endif
}

void vbus0_evt(enum gpio_signal signal)
{
	/* VBUS present GPIO is inverted */
	usb_charger_vbus_change(0, !gpio_get_level(signal));
	task_wake(TASK_ID_PD_C0);
}

void usb0_evt(enum gpio_signal signal)
{
	task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12, 0);
}

#include "gpio_list.h"

/* PWM channels. Must be in the exactly same order as in enum pwm_channel. */
const struct pwm_t pwm_channels[] = {
	{0, PWM_CONFIG_ACTIVE_LOW},
	{1, PWM_CONFIG_ACTIVE_LOW},
	{3, PWM_CONFIG_ACTIVE_LOW},
};

BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);

/* power signal list.  Must match order of enum power_signal. */
const struct power_signal_info power_signal_list[] = {
	{GPIO_ALL_SYS_PGOOD,     1, "ALL_SYS_PWRGD"},
	{GPIO_RSMRST_L_PGOOD,    1, "RSMRST_N_PWRGD"},
	{GPIO_PCH_SLP_S3_L,      1, "SLP_S3#_DEASSERTED"},
	{GPIO_PCH_SLP_S4_L,      1, "SLP_S4#_DEASSERTED"},
};
BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);

/* ADC channels */
const struct adc_t adc_channels[] = {
	/* Vbus sensing. Converted to mV, full ADC is equivalent to 30V. */
	[ADC_VBUS] = {"VBUS", 30000, 1024, 0, 4},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);

const struct i2c_port_t i2c_ports[]  = {
	{"batt_chg", MEC1322_I2C0_0, 100,
		GPIO_I2C_PORT0_SCL, GPIO_I2C_PORT0_SDA},
	{"sensors",  MEC1322_I2C1,   100,
		GPIO_I2C_PORT1_SCL, GPIO_I2C_PORT1_SDA},
	{"pd_mcu",   MEC1322_I2C2,   1000,
		GPIO_I2C_PORT2_SCL, GPIO_I2C_PORT2_SDA},
	{"thermal",  MEC1322_I2C3,   100,
		GPIO_I2C_PORT3_SCL, GPIO_I2C_PORT3_SDA}
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);

const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = {
	{I2C_PORT_TCPC, CONFIG_TCPC_I2C_BASE_ADDR, &tcpci_tcpm_drv},
};

/* SPI master ports */
const struct spi_device_t spi_devices[] = {
	{ CONFIG_SPI_FLASH_PORT, 0, GPIO_PVT_CS0},
};
const unsigned int spi_devices_used = ARRAY_SIZE(spi_devices);

const enum gpio_signal hibernate_wake_pins[] = {
	GPIO_AC_PRESENT,
	GPIO_LID_OPEN,
	GPIO_POWER_BUTTON_L,
};

const int hibernate_wake_pins_used = ARRAY_SIZE(hibernate_wake_pins);

struct pi3usb9281_config pi3usb9281_chips[] = {
	{
		.i2c_port = I2C_PORT_USB_CHARGER_1,
		.mux_lock = NULL,
	},
};
BUILD_ASSERT(ARRAY_SIZE(pi3usb9281_chips) ==
	     CONFIG_USB_SWITCH_PI3USB9281_CHIP_COUNT);

struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = {
	{
		.port_addr = 0xaa,
		.driver = &pi3usb30532_usb_mux_driver,
	},
};

/*
 * Temperature sensors data; must be in same order as enum temp_sensor_id.
 * Sensor index and name must match those present in coreboot:
 *     src/mainboard/google/${board}/acpi/dptf.asl
 */
const struct temp_sensor_t temp_sensors[] = {
	{"TMP432_Internal", TEMP_SENSOR_TYPE_BOARD, tmp432_get_val,
		TMP432_IDX_LOCAL, 4},
	{"TMP432_Sensor_1", TEMP_SENSOR_TYPE_BOARD, tmp432_get_val,
		TMP432_IDX_REMOTE1, 4},
	{"TMP432_Sensor_2", TEMP_SENSOR_TYPE_BOARD, tmp432_get_val,
		TMP432_IDX_REMOTE2, 4},
	{"Battery", TEMP_SENSOR_TYPE_BATTERY, charge_temp_sensor_get_val,
		0, 4},
};
BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);

/* ALS instances. Must be in same order as enum als_id. */
struct als_t als[] = {
	{"ISL", isl29035_init, isl29035_read_lux, 5},
};
BUILD_ASSERT(ARRAY_SIZE(als) == ALS_COUNT);

const struct button_config buttons[] = {
	{"Volume Down", KEYBOARD_BUTTON_VOLUME_DOWN, GPIO_VOLUME_DOWN,
		30 * MSEC, 0},
	{"Volume Up", KEYBOARD_BUTTON_VOLUME_UP, GPIO_VOLUME_UP,
		30 * MSEC, 0},
};
BUILD_ASSERT(ARRAY_SIZE(buttons) == CONFIG_BUTTON_COUNT);

/**
 * Reset PD MCU
 */
void board_reset_pd_mcu(void)
{
	gpio_set_level(GPIO_PD_RST_L, 0);
	usleep(100);
	gpio_set_level(GPIO_PD_RST_L, 1);
}

/* Four Motion sensors */
/* kxcj9 mutex and local/private data*/
static struct mutex g_kxcj9_mutex[2];
struct kionix_accel_data g_kxcj9_data[2];

/* Matrix to rotate accelrator into standard reference frame */
const matrix_3x3_t base_standard_ref = {
	{ 0,  FLOAT_TO_FP(1),  0},
	{FLOAT_TO_FP(-1),  0,  0},
	{ 0,  0,  FLOAT_TO_FP(1)}
};

const matrix_3x3_t lid_standard_ref = {
	{FLOAT_TO_FP(-1),  0,  0},
	{ 0, FLOAT_TO_FP(-1),  0},
	{ 0,  0, FLOAT_TO_FP(-1)}
};

struct motion_sensor_t motion_sensors[] = {
	{.name = "Base Accel",
	 .active_mask = SENSOR_ACTIVE_S0,
	 .chip = MOTIONSENSE_CHIP_KXCJ9,
	 .type = MOTIONSENSE_TYPE_ACCEL,
	 .location = MOTIONSENSE_LOC_BASE,
	 .drv = &kionix_accel_drv,
	 .mutex = &g_kxcj9_mutex[0],
	 .drv_data = &g_kxcj9_data[0],
	 .port = I2C_PORT_ACCEL,
	 .addr = KXCJ9_ADDR1,
	 .rot_standard_ref = &base_standard_ref,
	 .default_range = 2,  /* g, enough for laptop. */
	 .config = {
		 /* AP: by default shutdown all sensors */
		 [SENSOR_CONFIG_AP] = {
			 .odr = 0,
			 .ec_rate = 0,
		 },
		 /* EC use accel for angle detection */
		 [SENSOR_CONFIG_EC_S0] = {
			 .odr = 100000 | ROUND_UP_FLAG,
			 .ec_rate = 100 * MSEC,
		 },
		 /* Sensor off in S3/S5 */
		 [SENSOR_CONFIG_EC_S3] = {
			 .odr = 0,
			 .ec_rate = 0
		 },
		 /* Sensor off in S3/S5 */
		 [SENSOR_CONFIG_EC_S5] = {
			 .odr = 0,
			 .ec_rate = 0
		 },
	 }
	},
	{.name = "Lid Accel",
	 .active_mask = SENSOR_ACTIVE_S0,
	 .chip = MOTIONSENSE_CHIP_KXCJ9,
	 .type = MOTIONSENSE_TYPE_ACCEL,
	 .location = MOTIONSENSE_LOC_LID,
	 .drv = &kionix_accel_drv,
	 .mutex = &g_kxcj9_mutex[1],
	 .drv_data = &g_kxcj9_data[1],
	 .port = I2C_PORT_ACCEL,
	 .addr = KXCJ9_ADDR0,
	 .rot_standard_ref = &lid_standard_ref,
	 .default_range = 2,  /* g, enough for laptop. */
	 .config = {
		 /* AP: by default shutdown all sensors */
		 [SENSOR_CONFIG_AP] = {
			 .odr = 0,
			 .ec_rate = 0,
		 },
		 /* EC use accel for angle detection */
		 [SENSOR_CONFIG_EC_S0] = {
			 .odr = 100000 | ROUND_UP_FLAG,
			 .ec_rate = 100 * MSEC,
		 },
		 /* Sensor off in S3/S5 */
		 [SENSOR_CONFIG_EC_S3] = {
			 .odr = 0,
			 .ec_rate = 0
		 },
		 /* Sensor off in S3/S5 */
		 [SENSOR_CONFIG_EC_S5] = {
			 .odr = 0,
			 .ec_rate = 0
		 },
	 },
	},
};
const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);

/* init ADC ports to avoid floating state due to thermistors */
static void adc_pre_init(void)
{
       /* Configure GPIOs */
	gpio_config_module(MODULE_ADC, 1);
}
DECLARE_HOOK(HOOK_INIT, adc_pre_init, HOOK_PRIO_INIT_ADC - 1);

/* Initialize board. */
static void board_init(void)
{
	/* Enable PD MCU interrupt */
	gpio_enable_interrupt(GPIO_PD_MCU_INT);
	/* Enable VBUS interrupt */
	gpio_enable_interrupt(GPIO_USB_C0_VBUS_WAKE_L);

	/* Enable pericom BC1.2 interrupts */
	gpio_enable_interrupt(GPIO_USB_C0_BC12_INT_L);
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);

/**
 * Set active charge port -- Enable or Disable charging
 *
 * @param charge_port   Charge port to enable.
 *
 * Returns EC_SUCCESS if charge port is accepted and made active,
 * EC_ERROR_* otherwise.
 */
int board_set_active_charge_port(int charge_port)
{
	/* charge port is a realy physical port */
	int is_real_port = (charge_port >= 0 &&
			    charge_port < CONFIG_USB_PD_PORT_COUNT);
	/* check if we are source vbus on that port */
	int source = gpio_get_level(GPIO_USB_C0_5V_EN);

	if (is_real_port && source) {
		CPRINTS("Skip enable p%d", charge_port);
		return EC_ERROR_INVAL;
	}

	CPRINTS("New chg p%d", charge_port);

	if (charge_port == CHARGE_PORT_NONE) {
		/* Disable charging port */
		gpio_set_level(GPIO_USB_C0_CHARGE_EN_L, 1);
		gpio_set_level(GPIO_EC_ACDET_CTRL, 1);
	} else {
		/* Enable charging port */
		gpio_set_level(GPIO_USB_C0_CHARGE_EN_L, 0);
		gpio_set_level(GPIO_EC_ACDET_CTRL, 0);
	}

	return EC_SUCCESS;
}

/**
 * Set the charge limit based upon desired maximum.
 *
 * @param port          Port number.
 * @param supplier      Charge supplier type.
 * @param charge_ma     Desired charge limit (mA).
 */
void board_set_charge_limit(int port, int supplier, int charge_ma, int max_ma)
{
	charge_set_input_current_limit(MAX(charge_ma,
					   CONFIG_CHARGER_INPUT_CURRENT));
}

/**
 * TODO: Remove this code after the BAT_PRESENT_L GPIO is implemented in
 * the hardware.
 *
 * Get the battery present status.
 *
 * Return EC_ERROR_UNIMPLEMENTED.
 */
enum battery_present battery_is_present(void)
{
	return EC_ERROR_UNIMPLEMENTED;
}

void board_hibernate(void)
{
	CPRINTS("Enter Pseudo G3");

	/*
	 * Clean up the UART buffer and prevent any unwanted garbage characters
	 * before power off and also ensure above debug message is printed.
	 */
	cflush();

	gpio_set_level(GPIO_EC_HIB_L, 1);
	gpio_set_level(GPIO_SMC_SHUTDOWN, 1);

	/* Power to EC should shut down now */
	while (1)
		;
}