1 files changed, 407 insertions, 0 deletions
diff --git a/board/katsu/board.c b/board/katsu/board.c
new file mode 100644
index 0000000000..7808cb5c34
--- /dev/null
+++ b/board/katsu/board.c
@@ -0,0 +1,407 @@
+/* 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.
+ */
+
+#include "adc.h"
+#include "adc_chip.h"
+#include "button.h"
+#include "charge_manager.h"
+#include "charge_ramp.h"
+#include "charge_state.h"
+#include "charger.h"
+#include "charger_mt6370.h"
+#include "chipset.h"
+#include "common.h"
+#include "console.h"
+#include "driver/accelgyro_bmi160.h"
+#include "driver/charger/rt946x.h"
+#include "driver/sync.h"
+#include "driver/tcpm/mt6370.h"
+#include "driver/usb_mux/it5205.h"
+#include "extpower.h"
+#include "gpio.h"
+#include "hooks.h"
+#include "host_command.h"
+#include "i2c.h"
+#include "lid_switch.h"
+#include "power.h"
+#include "power_button.h"
+#include "pwm.h"
+#include "pwm_chip.h"
+#include "registers.h"
+#include "spi.h"
+#include "system.h"
+#include "task.h"
+#include "tcpm.h"
+#include "timer.h"
+#include "usb_charge.h"
+#include "usb_mux.h"
+#include "usb_pd_policy.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)
+
+static void tcpc_alert_event(enum gpio_signal signal)
+{
+	schedule_deferred_pd_interrupt(0 /* port */);
+}
+
+static void gauge_interrupt(enum gpio_signal signal)
+{
+	task_wake(TASK_ID_CHARGER);
+}
+
+#include "gpio_list.h"
+
+/******************************************************************************/
+/* ADC channels. Must be in the exactly same order as in enum adc_channel. */
+const struct adc_t adc_channels[] = {
+	[ADC_BOARD_ID] = {"BOARD_ID", 3300, 4096, 0, STM32_AIN(10)},
+	[ADC_EC_SKU_ID] = {"EC_SKU_ID", 3300, 4096, 0, STM32_AIN(8)},
+	[ADC_BATT_ID] = {"BATT_ID", 3300, 4096, 0, STM32_AIN(7)},
+	[ADC_POGO_ADC_INT_L] = {"POGO_ADC_INT_L", 3300, 4096, 0, STM32_AIN(6)},
+};
+BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
+
+/******************************************************************************/
+/* I2C ports */
+const struct i2c_port_t i2c_ports[] = {
+	{"typec", 0, 400, GPIO_I2C1_SCL, GPIO_I2C1_SDA},
+	{"other", 1, 400, GPIO_I2C2_SCL, GPIO_I2C2_SDA},
+};
+const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
+
+/* power signal list.  Must match order of enum power_signal. */
+const struct power_signal_info power_signal_list[] = {
+	{GPIO_AP_IN_SLEEP_L,   POWER_SIGNAL_ACTIVE_LOW,  "AP_IN_S3_L"},
+	{GPIO_PMIC_EC_RESETB,  POWER_SIGNAL_ACTIVE_HIGH, "PMIC_PWR_GOOD"},
+};
+BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
+
+/******************************************************************************/
+/* SPI devices */
+const struct spi_device_t spi_devices[] = {
+};
+const unsigned int spi_devices_used = ARRAY_SIZE(spi_devices);
+
+/******************************************************************************/
+const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = {
+	{
+		.bus_type = EC_BUS_TYPE_I2C,
+		.i2c_info = {
+			.port = I2C_PORT_TCPC0,
+			.addr_flags = MT6370_TCPC_I2C_ADDR_FLAGS,
+		},
+		.drv = &mt6370_tcpm_drv,
+	},
+};
+
+struct mt6370_thermal_bound thermal_bound = {
+	.target = 80,
+	.err = 4,
+};
+
+static void board_hpd_update(int port, int hpd_lvl, int hpd_irq)
+{
+	/*
+	 * svdm_dp_attention() did most of the work, we only need to notify
+	 * host here.
+	 */
+	host_set_single_event(EC_HOST_EVENT_USB_MUX);
+}
+
+__override const struct rt946x_init_setting *board_rt946x_init_setting(void)
+{
+	static const struct rt946x_init_setting battery_init_setting = {
+		.eoc_current = 140,
+		.mivr = 4000,
+		.ircmp_vclamp = 32,
+		.ircmp_res = 25,
+		.boost_voltage = 5050,
+		.boost_current = 1500,
+	};
+
+	return &battery_init_setting;
+}
+
+struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = {
+	{
+		.port_addr = IT5205_I2C_ADDR1_FLAGS,
+		.driver = &it5205_usb_mux_driver,
+		.hpd_update = &board_hpd_update,
+	},
+};
+
+uint16_t tcpc_get_alert_status(void)
+{
+	uint16_t status = 0;
+
+	if (!gpio_get_level(GPIO_USB_C0_PD_INT_ODL))
+		status |= PD_STATUS_TCPC_ALERT_0;
+
+	return status;
+}
+
+static int force_discharge;
+
+int board_set_active_charge_port(int charge_port)
+{
+	CPRINTS("New chg p%d", charge_port);
+
+	/* ignore all request when discharge mode is on */
+	if (force_discharge && charge_port != CHARGE_PORT_NONE)
+		return EC_SUCCESS;
+
+	switch (charge_port) {
+	case CHARGE_PORT_USB_C:
+		/* Don't charge from a source port */
+		if (board_vbus_source_enabled(charge_port))
+			return -1;
+		gpio_set_level(GPIO_EN_POGO_CHARGE_L, 1);
+		gpio_set_level(GPIO_EN_USBC_CHARGE_L, 0);
+		break;
+#if CONFIG_DEDICATED_CHARGE_PORT_COUNT > 0
+	case CHARGE_PORT_POGO:
+		gpio_set_level(GPIO_EN_USBC_CHARGE_L, 1);
+		gpio_set_level(GPIO_EN_POGO_CHARGE_L, 0);
+		break;
+#endif
+	case CHARGE_PORT_NONE:
+		/*
+		 * To ensure the fuel gauge (max17055) is always powered
+		 * even when battery is disconnected, keep VBAT rail on but
+		 * set the charging current to minimum.
+		 */
+		gpio_set_level(GPIO_EN_POGO_CHARGE_L, 1);
+		gpio_set_level(GPIO_EN_USBC_CHARGE_L, 1);
+		charger_set_current(0);
+		break;
+	default:
+		panic("Invalid charge port\n");
+		break;
+	}
+
+	return EC_SUCCESS;
+}
+
+int board_discharge_on_ac(int enable)
+{
+	int ret, port;
+
+	if (enable) {
+		port = CHARGE_PORT_NONE;
+	} else {
+		/* restore the charge port state */
+		port = charge_manager_get_override();
+		if (port == OVERRIDE_OFF)
+			port = charge_manager_get_active_charge_port();
+	}
+
+	ret = charger_discharge_on_ac(enable);
+	if (ret)
+		return ret;
+
+	if (force_discharge && !enable)
+		rt946x_toggle_bc12_detection();
+
+	force_discharge = enable;
+	return board_set_active_charge_port(port);
+}
+
+int extpower_is_present(void)
+{
+	/*
+	 * The charger will indicate VBUS presence if we're sourcing 5V,
+	 * so exclude such ports.
+	 */
+	int usb_c_extpower_present;
+
+	if (board_vbus_source_enabled(CHARGE_PORT_USB_C))
+		usb_c_extpower_present = 0;
+	else
+		usb_c_extpower_present = tcpm_get_vbus_level(CHARGE_PORT_USB_C);
+
+	return usb_c_extpower_present;
+}
+
+int pd_snk_is_vbus_provided(int port)
+{
+	if (port)
+		panic("Invalid charge port\n");
+
+	return rt946x_is_vbus_ready();
+}
+
+static void board_init(void)
+{
+	/* If the reset cause is external, pulse PMIC force reset. */
+	if (system_get_reset_flags() == EC_RESET_FLAG_RESET_PIN) {
+		gpio_set_level(GPIO_PMIC_FORCE_RESET_ODL, 0);
+		msleep(100);
+		gpio_set_level(GPIO_PMIC_FORCE_RESET_ODL, 1);
+	}
+
+	/* Enable TCPC alert interrupts */
+	gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL);
+
+	/* Enable charger interrupts */
+	gpio_enable_interrupt(GPIO_CHARGER_INT_ODL);
+
+#ifdef SECTION_IS_RW
+	/* Enable interrupts from BMI160 sensor. */
+	gpio_enable_interrupt(GPIO_ACCEL_INT_ODL);
+
+	/* Enable interrupt for the camera vsync. */
+	gpio_enable_interrupt(GPIO_SYNC_INT);
+#endif /* SECTION_IS_RW */
+
+	/* Enable interrupt from PMIC. */
+	gpio_enable_interrupt(GPIO_PMIC_EC_RESETB);
+
+	/* Enable gauge interrupt from max17055 */
+	gpio_enable_interrupt(GPIO_GAUGE_INT_ODL);
+
+	/*
+	 * Fix backlight led maximum current:
+	 * tolerance 120mA * 0.75 = 90mA.
+	 * (b/133655155)
+	 */
+	mt6370_backlight_set_dim(MT6370_BLDIM_DEFAULT * 3 / 4);
+}
+DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
+
+static void board_rev_init(void)
+{
+	/* Board revision specific configs. */
+
+	/*
+	 * It's a P1 pin BOOTBLOCK_MUX_OE, also a P2 pin BC12_DET_EN.
+	 * Keep this pin defaults to P1 setting since that eMMC enabled with
+	 * High-Z stat.
+	 */
+	/* TODO */
+	/* Put initial code here for different EC board reversion */
+}
+DECLARE_HOOK(HOOK_INIT, board_rev_init, HOOK_PRIO_INIT_ADC + 1);
+
+/* Motion sensors */
+/* Mutexes */
+#ifndef VARIANT_KUKUI_NO_SENSORS
+static struct mutex g_lid_mutex;
+
+static struct bmi160_drv_data_t g_bmi160_data;
+
+/* Matrix to rotate accelerometer into standard reference frame */
+static const mat33_fp_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[] = {
+	/*
+	 * Note: bmi160: supports accelerometer and gyro sensor
+	 * Requirement: accelerometer sensor must init before gyro sensor
+	 * DO NOT change the order of the following table.
+	 */
+	[LID_ACCEL] = {
+	 .name = "Accel",
+	 .active_mask = SENSOR_ACTIVE_S0_S3,
+	 .chip = MOTIONSENSE_CHIP_BMI160,
+	 .type = MOTIONSENSE_TYPE_ACCEL,
+	 .location = MOTIONSENSE_LOC_LID,
+	 .drv = &bmi160_drv,
+	 .mutex = &g_lid_mutex,
+	 .drv_data = &g_bmi160_data,
+	 .port = I2C_PORT_ACCEL,
+	 .i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
+	 .rot_standard_ref = &lid_standard_ref,
+	 .default_range = 4,  /* g */
+	 .min_frequency = BMI160_ACCEL_MIN_FREQ,
+	 .max_frequency = BMI160_ACCEL_MAX_FREQ,
+	 .config = {
+		 /* Enable accel in S0 */
+		 [SENSOR_CONFIG_EC_S0] = {
+			 .odr = 10000 | ROUND_UP_FLAG,
+			 .ec_rate = 100 * MSEC,
+		 },
+	 },
+	},
+	[LID_GYRO] = {
+	 .name = "Gyro",
+	 .active_mask = SENSOR_ACTIVE_S0_S3,
+	 .chip = MOTIONSENSE_CHIP_BMI160,
+	 .type = MOTIONSENSE_TYPE_GYRO,
+	 .location = MOTIONSENSE_LOC_LID,
+	 .drv = &bmi160_drv,
+	 .mutex = &g_lid_mutex,
+	 .drv_data = &g_bmi160_data,
+	 .port = I2C_PORT_ACCEL,
+	 .i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
+	 .default_range = 1000, /* dps */
+	 .rot_standard_ref = &lid_standard_ref,
+	 .min_frequency = BMI160_GYRO_MIN_FREQ,
+	 .max_frequency = BMI160_GYRO_MAX_FREQ,
+	},
+	[VSYNC] = {
+	 .name = "Camera vsync",
+	 .active_mask = SENSOR_ACTIVE_S0,
+	 .chip = MOTIONSENSE_CHIP_GPIO,
+	 .type = MOTIONSENSE_TYPE_SYNC,
+	 .location = MOTIONSENSE_LOC_CAMERA,
+	 .drv = &sync_drv,
+	 .default_range = 0,
+	 .min_frequency = 0,
+	 .max_frequency = 1,
+	},
+};
+const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
+#endif /* VARIANT_KUKUI_NO_SENSORS */
+
+void usb_charger_set_switches(int port, enum usb_switch setting)
+{
+}
+
+/*
+ * Return if VBUS is sagging too low
+ */
+int board_is_vbus_too_low(int port, enum chg_ramp_vbus_state ramp_state)
+{
+	/*
+	 * Though we have a more tolerant range (3.9V~13.4V), setting 4400 to
+	 * prevent from a bad charger crashed.
+	 *
+	 * TODO(b:131284131): mt6370 VBUS reading is not accurate currently.
+	 * Vendor will provide a workaround solution to fix the gap between ADC
+	 * reading and actual voltage.  After the workaround applied, we could
+	 * try to raise this value to 4600.  (when it says it read 4400, it is
+	 * actually close to 4600)
+	 */
+	return charger_get_vbus_voltage(port) < 4400;
+}
+
+__override int board_charge_port_is_sink(int port)
+{
+	/* TODO(b:128386458): Check POGO_ADC_INT_L */
+	return 1;
+}
+
+__override int board_charge_port_is_connected(int port)
+{
+	return gpio_get_level(GPIO_POGO_VBUS_PRESENT);
+}
+
+__override
+void board_fill_source_power_info(int port,
+				  struct ec_response_usb_pd_power_info *r)
+{
+	r->meas.voltage_now = 3300;
+	r->meas.voltage_max = 3300;
+	r->meas.current_max = 1500;
+	r->meas.current_lim = 1500;
+	r->max_power = r->meas.voltage_now * r->meas.current_max;
+}
+