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/* 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.
*/
#include "adc.h"
#include "backlight.h"
#include "button.h"
#include "charge_manager.h"
#include "charge_ramp.h"
#include "charge_state.h"
#include "charger.h"
#include "chipset.h"
#include "common.h"
#include "console.h"
#include "driver/accel_kionix.h"
#include "driver/accelgyro_bmi_common.h"
#include "driver/battery/max17055.h"
#include "driver/bc12/pi3usb9201.h"
#include "driver/charger/isl923x.h"
#include "driver/tcpm/it83xx_pd.h"
#include "driver/usb_mux/it5205.h"
#include "ec_commands.h"
#include "extpower.h"
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
#include "i2c.h"
#include "keyboard_scan.h"
#include "lid_switch.h"
#include "power.h"
#include "power_button.h"
#include "registers.h"
#include "spi.h"
#include "system.h"
#include "tablet_mode.h"
#include "task.h"
#include "tcpm/tcpm.h"
#include "timer.h"
#include "uart.h"
#include "usb_charge.h"
#include "usb_mux.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)
#include "gpio_list.h"
#ifndef VARIANT_KUKUI_NO_SENSORS
/* Motion sensors */
/* Mutexes */
static struct mutex g_lid_mutex;
static struct mutex g_base_mutex;
/* Rotation matrixes */
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)}
};
static const mat33_fp_t base_standard_ref = {
{FLOAT_TO_FP(1), 0, 0},
{0, FLOAT_TO_FP(1), 0},
{0, 0, FLOAT_TO_FP(1)}
};
/* sensor private data */
static struct kionix_accel_data g_kx022_data;
static struct bmi_drv_data_t g_bmi160_data;
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_SENSORS,
.i2c_spi_addr_flags = KX022_ADDR1_FLAGS,
.rot_standard_ref = &lid_standard_ref,
.min_frequency = KX022_ACCEL_MIN_FREQ,
.max_frequency = KX022_ACCEL_MAX_FREQ,
.default_range = 2, /* g, enough to calculate lid angle. */
.config = {
/* EC use accel for angle detection */
[SENSOR_CONFIG_EC_S0] = {
.odr = 10000 | ROUND_UP_FLAG,
},
/* Sensor on for lid angle detection */
[SENSOR_CONFIG_EC_S3] = {
.odr = 10000 | ROUND_UP_FLAG,
},
},
},
/*
* Note: bmi160: supports accelerometer and gyro sensor
* Requirement: accelerometer sensor must init before gyro sensor
* DO NOT change the order of the following table.
*/
[BASE_ACCEL] = {
.name = "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_SENSORS,
.i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
.rot_standard_ref = &base_standard_ref,
.default_range = 4, /* g, to meet CDD 7.3.1/C-1-4 reqs */
.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 * MSEC,
},
/* Sensor on for angle detection */
[SENSOR_CONFIG_EC_S3] = {
.odr = 10000 | ROUND_UP_FLAG,
.ec_rate = 100 * MSEC,
},
},
},
[BASE_GYRO] = {
.name = "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_SENSORS,
.i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
.default_range = 1000, /* dps */
.rot_standard_ref = &base_standard_ref,
.min_frequency = BMI_GYRO_MIN_FREQ,
.max_frequency = BMI_GYRO_MAX_FREQ,
},
};
unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
static bool board_is_convertible(void)
{
int sku = system_get_sku_id();
return sku == 1;
}
int board_sensor_at_360(void)
{
if (board_is_convertible())
return !gpio_get_level(GMR_TABLET_MODE_GPIO_L);
return 0;
}
#endif /* !VARIANT_KUKUI_NO_SENSORS */
/*
* Map keyboard connector pins to EC GPIO pins for factory test.
* Pins mapped to {-1, -1} are skipped.
* The connector has 24 pins total, and there is no pin 0.
*/
const int keyboard_factory_scan_pins[][2] = {
{-1, -1}, {GPIO_KSO_H, 4}, {GPIO_KSO_H, 0}, {GPIO_KSO_H, 1},
{GPIO_KSO_H, 3}, {GPIO_KSO_H, 2}, {-1, -1}, {-1, -1},
{GPIO_KSO_L, 5}, {GPIO_KSO_L, 6}, {-1, -1}, {GPIO_KSO_L, 3},
{GPIO_KSO_L, 2}, {GPIO_KSI, 0}, {GPIO_KSO_L, 1}, {GPIO_KSO_L, 4},
{GPIO_KSI, 3}, {GPIO_KSI, 2}, {GPIO_KSO_L, 0}, {GPIO_KSI, 5},
{GPIO_KSI, 4}, {GPIO_KSO_L, 7}, {GPIO_KSI, 6}, {GPIO_KSI, 7},
{GPIO_KSI, 1}, {-1, -1}, {GPIO_KSO_H, 5}, {-1, -1},
{GPIO_KSO_H, 6}, {-1, -1}, {-1, -1},
};
const int keyboard_factory_scan_pins_used =
ARRAY_SIZE(keyboard_factory_scan_pins);
/* 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);
/******************************************************************************/
/* 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", ADC_MAX_MVOLT, ADC_READ_MAX + 1, 0,
CHIP_ADC_CH1},
[ADC_EC_SKU_ID] = {"EC_SKU_ID", ADC_MAX_MVOLT, ADC_READ_MAX + 1, 0,
CHIP_ADC_CH2},
[ADC_VBUS] = {"VBUS", ADC_MAX_MVOLT * 10, ADC_READ_MAX + 1, 0,
CHIP_ADC_CH0},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
/******************************************************************************/
/* I2C ports */
const struct i2c_port_t i2c_ports[] = {
{"typec", IT83XX_I2C_CH_C, 400, GPIO_I2C_C_SCL, GPIO_I2C_C_SDA},
{"sensor", IT83XX_I2C_CH_B, 400, GPIO_I2C_B_SCL, GPIO_I2C_B_SDA},
{"battery", IT83XX_I2C_CH_A, 100, GPIO_I2C_A_SCL, GPIO_I2C_A_SDA},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
#define BC12_I2C_ADDR PI3USB9201_I2C_ADDR_3
/* 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);
/******************************************************************************/
const struct pi3usb9201_config_t pi3usb9201_bc12_chips[] = {
{
.i2c_port = I2C_PORT_BC12,
.i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS,
},
};
/******************************************************************************/
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 = &it8xxx2_tcpm_drv,
/* Alert is active-low, push-pull */
.flags = 0,
},
};
static void board_hpd_status(const struct usb_mux *me,
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);
}
const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = {
{
.usb_port = 0,
.i2c_port = I2C_PORT_USB_MUX,
.i2c_addr_flags = IT5205_I2C_ADDR1_FLAGS,
.driver = &it5205_usb_mux_driver,
.hpd_update = &board_hpd_status,
},
};
/* Charger config. Start i2c address at 1, update during runtime */
struct charger_config_t chg_chips[] = {
{
.i2c_port = I2C_PORT_CHARGER,
.i2c_addr_flags = ISL923X_ADDR_FLAGS,
.drv = &isl923x_drv,
},
};
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;
break;
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.
*/
charger_set_current(CHARGER_SOLO, 0);
break;
default:
panic("Invalid charge port\n");
break;
}
return EC_SUCCESS;
}
void board_set_charge_limit(int port, int supplier, int charge_ma,
int max_ma, int charge_mv)
{
charge_ma = (charge_ma * 95) / 100;
charge_set_input_current_limit(MAX(charge_ma,
CONFIG_CHARGER_INPUT_CURRENT), charge_mv);
}
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;
force_discharge = enable;
return board_set_active_charge_port(port);
}
#define VBUS_THRESHOLD_MV 4200
int pd_snk_is_vbus_provided(int port)
{
/* This board has only one port. */
if (!port)
return adc_read_channel(ADC_VBUS) > VBUS_THRESHOLD_MV ? 1 : 0;
else
return 0;
}
void bc12_interrupt(enum gpio_signal signal)
{
task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12);
}
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);
}
#ifndef VARIANT_KUKUI_NO_SENSORS
/* Enable interrupts from BMI160 sensor. */
gpio_enable_interrupt(GPIO_ACCEL_INT_ODL);
#endif /* VARIANT_KUKUI_NO_SENSORS */
/* Enable interrupt from PMIC. */
gpio_enable_interrupt(GPIO_PMIC_EC_RESETB);
/* Enable BC12 interrupt */
gpio_enable_interrupt(GPIO_BC12_EC_INT_ODL);
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
#ifndef VARIANT_KUKUI_NO_SENSORS
static void board_motion_init(void)
{
if (!board_is_convertible()) {
/* Disable motion sense. */
motion_sensor_count = 0;
gpio_disable_interrupt(GPIO_ACCEL_INT_ODL);
gpio_set_flags(GPIO_ACCEL_INT_ODL, GPIO_INPUT);
/* Disable tablet mode. */
tablet_set_mode(0, TABLET_TRIGGER_LID);
gmr_tablet_switch_disable();
gpio_set_flags(GPIO_TABLET_MODE_L,
GPIO_INPUT | GPIO_PULL_UP);
}
}
DECLARE_HOOK(HOOK_INIT, board_motion_init, HOOK_PRIO_DEFAULT + 1);
#endif /* VARIANT_KUKUI_NO_SENSORS */
/* Vconn control for integrated ITE TCPC */
void board_pd_vconn_ctrl(int port, enum usbpd_cc_pin cc_pin, int enabled)
{
/* Vconn control is only for port 0 */
if (port)
return;
if (cc_pin == USBPD_CC_PIN_1)
gpio_set_level(GPIO_EN_USB_C0_CC1_VCONN, !!enabled);
else
gpio_set_level(GPIO_EN_USB_C0_CC2_VCONN, !!enabled);
}
/* Called on AP S5 -> S3 transition */
static void board_chipset_startup(void)
{
gpio_set_level(GPIO_EN_USBA_5V, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_STARTUP, board_chipset_startup, HOOK_PRIO_DEFAULT);
/* Called on AP S3 -> S5 transition */
static void board_chipset_shutdown(void)
{
gpio_set_level(GPIO_EN_USBA_5V, 0);
}
DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, board_chipset_shutdown, HOOK_PRIO_DEFAULT);
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