path: root/board/asurada/board.c

/* 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.
 */
/* Asurada board configuration */

#include "adc.h"
#include "adc_chip.h"
#include "button.h"
#include "charger.h"
#include "chipset.h"
#include "common.h"
#include "console.h"
#include "driver/charger/isl923x.h"
#include "driver/tcpm/it83xx_pd.h"
#include "extpower.h"
#include "gpio.h"
#include "hooks.h"
#include "i2c.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 "tablet_mode.h"
#include "timer.h"
#include "uart.h"
#include "usb_mux.h"
#include "usb_pd_tcpm.h"

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

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

static void x_ec_interrupt(enum gpio_signal signal);

#include "gpio_list.h"

const struct charger_config_t chg_chips[] = {
	{
		.i2c_port = I2C_PORT_CHARGER,
		.i2c_addr_flags = ISL923X_ADDR_FLAGS,
		.drv = &isl923x_drv,
	},
};
const unsigned int chg_cnt = ARRAY_SIZE(chg_chips);

/*
 * PWM channels. Must be in the exactly same order as in enum pwm_channel.
 * There total three 16 bits clock prescaler registers for all pwm channels,
 * so use the same frequency and prescaler register setting is required if
 * number of pwm channel greater than three.
 */
const struct pwm_t pwm_channels[] = {
};
BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);

/* Wake-up pins for hibernate */
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);

/* power signal list.  Must match order of enum power_signal. */
const struct power_signal_info power_signal_list[] = {
	{GPIO_PMIC_EC_PWRGD, POWER_SIGNAL_ACTIVE_HIGH, "PMIC_PWR_GOOD"},
	{GPIO_AP_IN_SLEEP_L, POWER_SIGNAL_ACTIVE_LOW, "AP_IN_S3_L"},
	{GPIO_AP_EC_WATCHDOG_L,
	  POWER_SIGNAL_ACTIVE_LOW | POWER_SIGNAL_DISABLE_AT_BOOT,
	  "AP_WDT_ASSERTED"},
};
BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);

/* Detect subboard */
static enum board_sub_board board_get_sub_board(void);

/* Initialize board. */
static void board_init(void)
{
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);

/* ADC channels. Must be in the exactly same order as in enum adc_channel. */
const struct adc_t adc_channels[] = {
	/* Convert to mV (3000mV/1024). */
	{"TEMP_SENSOR_SUBPMIC", 3000, 1024, 0, CHIP_ADC_CH0},
	{"BOARD_ID_0", 3000, 1024, 0, CHIP_ADC_CH1},
	{"BOARD_ID_1", 3000, 1024, 0, CHIP_ADC_CH2},
	{"TEMP_SENSOR_AMB", 3000, 1024, 0, CHIP_ADC_CH3},
	{"TEMP_SENSOR_CHARGER", 3000, 1024, 0, CHIP_ADC_CH5},
	{"CHARGER_PMON", 3000, 1024, 0, CHIP_ADC_CH6},
	{"TEMP_SENSOR_AP", 3000, 1024, 0, CHIP_ADC_CH7},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);

/* Keyboard scan setting */
struct keyboard_scan_config keyscan_config = {
	.output_settle_us = 35,
	.debounce_down_us = 5 * MSEC,
	.debounce_up_us = 40 * MSEC,
	.scan_period_us = 3 * MSEC,
	.min_post_scan_delay_us = 1000,
	.poll_timeout_us = 100 * MSEC,
	.actual_key_mask = {
		0x14, 0xff, 0xff, 0xff, 0xff, 0xf5, 0xff,
		0xa4, 0xff, 0xfe, 0x55, 0xfa, 0xca  /* full set */
	},
};

/*
 * I2C channels (A, B, and C) are using the same timing registers (00h~07h)
 * at default.
 * In order to set frequency independently for each channels,
 * We use timing registers 09h~0Bh, and the supported frequency will be:
 * 50KHz, 100KHz, 400KHz, or 1MHz.
 * I2C channels (D, E and F) can be set different frequency on different ports.
 * The I2C(D/E/F) frequency depend on the frequency of SMBus Module and
 * the individual prescale register.
 * The frequency of SMBus module is 24MHz on default.
 * The allowed range of I2C(D/E/F) frequency is as following setting.
 * SMBus Module Freq = PLL_CLOCK / ((IT83XX_ECPM_SCDCR2 & 0x0F) + 1)
 * (SMBus Module Freq / 510) <=  I2C Freq <= (SMBus Module Freq / 8)
 * Channel D has multi-function and can be used as UART interface.
 * Channel F is reserved for EC debug.
 */

/* I2C ports */
const struct i2c_port_t i2c_ports[] = {
	{"bat_chg",  IT83XX_I2C_CH_A, 100, GPIO_I2C_A_SCL, GPIO_I2C_A_SDA},
	{"sensor",   IT83XX_I2C_CH_B, 100, GPIO_I2C_B_SCL, GPIO_I2C_B_SDA},
	{"usb0",     IT83XX_I2C_CH_C, 100, GPIO_I2C_C_SCL, GPIO_I2C_C_SDA},
	{"usb1",     IT83XX_I2C_CH_E, 100, GPIO_I2C_E_SCL, GPIO_I2C_E_SDA},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);

static void x_ec_interrupt(enum gpio_signal signal)
{
	/* TODO: implement this */
}

/* TCPC */
const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = {
	{
		.bus_type = EC_BUS_TYPE_EMBEDDED,
		/* TCPC is embedded within EC so no i2c config needed */
		.drv = &it83xx_tcpm_drv,
		/* Alert is active-low, push-pull */
		.flags = 0,
	},
	{
		.bus_type = EC_BUS_TYPE_EMBEDDED,
		/* TCPC is embedded within EC so no i2c config needed */
		.drv = &it83xx_tcpm_drv,
		/* Alert is active-low, push-pull */
		.flags = 0,
	},
};

/* USB Mux */
const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = {
};

uint16_t tcpc_get_alert_status(void)
{
	/*
	 * C0 & C1: TCPC is embedded in the EC and processes interrupts in the
	 * chip code (it83xx/intc.c)
	 */
	return 0;
}

void board_reset_pd_mcu(void)
{
	/*
	 * C0 & C1: TCPC is embedded in the EC and processes interrupts in the
	 * chip code (it83xx/intc.c)
	 */
}

int board_get_version(void)
{
	return 0;
}

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

	return 0;
}

void board_set_charge_limit(int port, int supplier, int charge_ma,
			    int max_ma, int charge_mv)
{
}

void board_pd_vconn_ctrl(int port, enum usbpd_cc_pin cc_pin, int enabled)
{
}

/* Sub-board */

static enum board_sub_board board_get_sub_board(void)
{
	static enum board_sub_board sub = SUB_BOARD_NONE;

	if (sub != SUB_BOARD_NONE)
		return sub;

	/* HDMI board has external pull high. */
	if (gpio_get_level(GPIO_EC_X_GPIO3)) {
		sub = SUB_BOARD_HDMI;
	} else {
		sub = SUB_BOARD_TYPEC;
		/* EC_X_GPIO1 */
		gpio_set_flags(GPIO_USB_C1_FRS_EN, GPIO_OUT_LOW);
		/* X_EC_GPIO2 */
		gpio_set_flags(GPIO_USB_C1_PPC_INT_ODL,
			       GPIO_INT_BOTH | GPIO_PULL_UP);
		/* EC_X_GPIO3 */
		gpio_set_flags(GPIO_USB_C1_DP_IN_HPD, GPIO_OUT_LOW);
	}

	CPRINTS("Detect %s SUB", sub == SUB_BOARD_HDMI ? "HDMI" : "TYPEC");
	return sub;
}

static void sub_board_init(void)
{
	board_get_sub_board();
}
DECLARE_HOOK(HOOK_INIT, sub_board_init, HOOK_PRIO_INIT_I2C - 1);

__override uint8_t board_get_usb_pd_port_count(void)
{
	if (board_get_sub_board() == SUB_BOARD_TYPEC)
		return CONFIG_USB_PD_PORT_MAX_COUNT;
	else
		return CONFIG_USB_PD_PORT_MAX_COUNT - 1;
}