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/* 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 "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_lis2dw12.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/fusb302.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 "i2c_bitbang.h"
#include "it8801.h"
#include "keyboard_scan.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 "tablet_mode.h"
#include "task.h"
#include "tcpm/tcpm.h"
#include "timer.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)
static void tcpc_alert_event(enum gpio_signal signal)
{
schedule_deferred_pd_interrupt(0 /* port */);
}
#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)},
};
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, 100, GPIO_I2C2_SCL, GPIO_I2C2_SDA},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
const struct i2c_port_t i2c_bitbang_ports[] = {
{"battery", 2, 100, GPIO_I2C3_SCL, GPIO_I2C3_SDA, .drv = &bitbang_drv},
};
const unsigned int i2c_bitbang_ports_used = ARRAY_SIZE(i2c_bitbang_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);
/* Keyboard scan setting */
struct keyboard_scan_config keyscan_config = {
/*
* TODO(b/133200075): Tune this once we have the final performance
* out of the driver and the i2c bus.
*/
.output_settle_us = 35,
.debounce_down_us = 5 * MSEC,
.debounce_up_us = 40 * MSEC,
.scan_period_us = 10 * MSEC,
.min_post_scan_delay_us = 10 * MSEC,
.poll_timeout_us = 100 * MSEC,
.actual_key_mask = {
0x14, 0xff, 0xff, 0xff, 0xff, 0xf5, 0xff,
0xa4, 0xff, 0xfe, 0x55, 0xfa, 0xca /* full set */
},
};
struct ioexpander_config_t ioex_config[CONFIG_IO_EXPANDER_PORT_COUNT] = {
[0] = {
.i2c_host_port = I2C_PORT_IO_EXPANDER_IT8801,
.i2c_slave_addr = IT8801_I2C_ADDR,
.drv = &it8801_ioexpander_drv,
},
};
/******************************************************************************/
/* SPI devices */
const struct spi_device_t spi_devices[] = {
{ CONFIG_SPI_ACCEL_PORT, 2, GPIO_EC_SENSOR_SPI_NSS },
};
const unsigned int spi_devices_used = ARRAY_SIZE(spi_devices);
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_I2C,
.i2c_info = {
.port = I2C_PORT_TCPC0,
.addr_flags = FUSB302_I2C_ADDR_FLAGS,
},
.drv = &fusb302_tcpm_drv,
},
};
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 = 1,
.i2c_addr_flags = ISL923X_ADDR_FLAGS,
.drv = &isl923x_drv,
},
};
/* Board version depends on ADCs, so init i2c port after ADC */
static void charger_config_complete(void)
{
chg_chips[0].i2c_port = board_get_charger_i2c();
}
DECLARE_HOOK(HOOK_INIT, charger_config_complete, HOOK_PRIO_INIT_ADC + 1);
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)
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 = board_set_active_charge_port(port);
if (ret)
return ret;
force_discharge = enable;
return charger_discharge_on_ac(enable);
}
int pd_snk_is_vbus_provided(int port)
{
/* TODO(b:138352732): read IT8801 GPIO EN_USBC_CHARGE_L */
return EC_ERROR_UNIMPLEMENTED;
}
void bc12_interrupt(enum gpio_signal signal)
{
task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12);
}
#ifndef VARIANT_KUKUI_NO_SENSORS
static void board_spi_enable(void)
{
/*
* Pin mux spi peripheral away from emmc, since RO might have
* left them there.
*/
gpio_config_module(MODULE_SPI_FLASH, 0);
/* Enable clocks to SPI2 module. */
STM32_RCC_APB1ENR |= STM32_RCC_PB1_SPI2;
/* Reset SPI2 to clear state left over from the emmc slave. */
STM32_RCC_APB1RSTR |= STM32_RCC_PB1_SPI2;
STM32_RCC_APB1RSTR &= ~STM32_RCC_PB1_SPI2;
/* Reinitialize spi peripheral. */
spi_enable(CONFIG_SPI_ACCEL_PORT, 1);
/* Pin mux spi peripheral toward the sensor. */
gpio_config_module(MODULE_SPI_MASTER, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_STARTUP,
board_spi_enable,
MOTION_SENSE_HOOK_PRIO - 1);
static void board_spi_disable(void)
{
/* Set pins to a state calming the sensor down. */
gpio_set_flags(GPIO_EC_SENSOR_SPI_CK, GPIO_OUT_LOW);
gpio_set_level(GPIO_EC_SENSOR_SPI_CK, 0);
gpio_config_module(MODULE_SPI_MASTER, 0);
/* Disable spi peripheral and clocks. */
spi_enable(CONFIG_SPI_ACCEL_PORT, 0);
STM32_RCC_APB1ENR &= ~STM32_RCC_PB1_SPI2;
}
DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN,
board_spi_disable,
MOTION_SENSE_HOOK_PRIO + 1);
#endif /* !VARIANT_KUKUI_NO_SENSORS */
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);
#ifndef VARIANT_KUKUI_NO_SENSORS
/* Enable interrupts from BMI160 sensor. */
gpio_enable_interrupt(GPIO_ACCEL_INT_ODL);
/* For some reason we have to do this again in case of sysjump */
board_spi_enable();
#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
/* Motion sensors */
/* Mutexes */
static struct mutex g_lid_mutex;
static struct mutex g_base_mutex;
/* Rotation matrixes */
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)}
};
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) }
};
/* sensor private data */
/* Lid accel private data */
static struct stprivate_data g_lis2dwl_data;
/* Base accel private 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_LIS2DWL,
.type = MOTIONSENSE_TYPE_ACCEL,
.location = MOTIONSENSE_LOC_LID,
.drv = &lis2dw12_drv,
.mutex = &g_lid_mutex,
.drv_data = &g_lis2dwl_data,
.port = I2C_PORT_SENSORS,
.i2c_spi_addr_flags = LIS2DWL_ADDR1_FLAGS,
.rot_standard_ref = &lid_standard_ref,
.default_range = 2, /* g */
.min_frequency = LIS2DW12_ODR_MIN_VAL,
.max_frequency = LIS2DW12_ODR_MAX_VAL,
.config = {
/* EC use accel for angle detection */
[SENSOR_CONFIG_EC_S0] = {
.odr = 12500 | 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 = CONFIG_SPI_ACCEL_PORT,
.i2c_spi_addr_flags = SLAVE_MK_SPI_ADDR_FLAGS(CONFIG_SPI_ACCEL_PORT),
.rot_standard_ref = &base_standard_ref,
.default_range = 2, /* 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 = CONFIG_SPI_ACCEL_PORT,
.i2c_spi_addr_flags = SLAVE_MK_SPI_ADDR_FLAGS(CONFIG_SPI_ACCEL_PORT),
.default_range = 1000, /* dps */
.rot_standard_ref = &base_standard_ref,
.min_frequency = BMI_GYRO_MIN_FREQ,
.max_frequency = BMI_GYRO_MAX_FREQ,
},
};
const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
#endif /* !VARIANT_KUKUI_NO_SENSORS */
/* 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);
int board_get_charger_i2c(void)
{
/* TODO(b:138415463): confirm the bus allocation for future builds */
return board_get_version() == 1 ? 2 : 1;
}
/* Enable or disable input devices, based on chipset state and tablet mode */
#ifndef TEST_BUILD
void lid_angle_peripheral_enable(int enable)
{
/* If the lid is in 360 position, ignore the lid angle,
* which might be faulty. Disable keyboard.
*/
if (tablet_get_mode() || chipset_in_state(CHIPSET_STATE_ANY_OFF))
enable = 0;
keyboard_scan_enable(enable, KB_SCAN_DISABLE_LID_ANGLE);
}
#endif
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