356 lines
9.1 KiB
C
356 lines
9.1 KiB
C
/* Copyright 2019 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "adc.h"
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#include "adc_chip.h"
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#include "button.h"
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#include "charge_manager.h"
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#include "charge_ramp.h"
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#include "charge_state.h"
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#include "charger.h"
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#include "chipset.h"
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#include "common.h"
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#include "console.h"
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#include "driver/accelgyro_lsm6dsm.h"
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#include "driver/charger/rt946x.h"
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#include "driver/sync.h"
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#include "driver/tcpm/mt6370.h"
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#include "driver/usb_mux/it5205.h"
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#include "extpower.h"
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#include "gpio.h"
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#include "hooks.h"
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#include "host_command.h"
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#include "i2c.h"
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#include "lid_switch.h"
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#include "power.h"
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#include "power_button.h"
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#include "pwm.h"
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#include "pwm_chip.h"
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#include "registers.h"
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#include "spi.h"
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#include "system.h"
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#include "task.h"
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#include "tcpm.h"
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#include "timer.h"
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#include "usb_charge.h"
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#include "usb_mux.h"
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#include "usb_pd_tcpm.h"
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#include "util.h"
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#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args)
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#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args)
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static void tcpc_alert_event(enum gpio_signal signal)
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{
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schedule_deferred_pd_interrupt(0 /* port */);
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}
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#include "gpio_list.h"
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/******************************************************************************/
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/* ADC channels. Must be in the exactly same order as in enum adc_channel. */
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const struct adc_t adc_channels[] = {
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[ADC_BOARD_ID] = {"BOARD_ID", 3300, 4096, 0, STM32_AIN(10)},
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[ADC_EC_SKU_ID] = {"EC_SKU_ID", 3300, 4096, 0, STM32_AIN(8)},
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[ADC_POGO_ADC_INT_L] = {"POGO_ADC_INT_L", 3300, 4096, 0, STM32_AIN(6)},
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};
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BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
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/******************************************************************************/
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/* I2C ports */
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const struct i2c_port_t i2c_ports[] = {
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{"typec", 0, 400, GPIO_I2C1_SCL, GPIO_I2C1_SDA},
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{"other", 1, 100, GPIO_I2C2_SCL, GPIO_I2C2_SDA},
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};
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const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
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/* power signal list. Must match order of enum power_signal. */
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const struct power_signal_info power_signal_list[] = {
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{GPIO_AP_IN_SLEEP_L, POWER_SIGNAL_ACTIVE_LOW, "AP_IN_S3_L"},
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{GPIO_PMIC_EC_RESETB, POWER_SIGNAL_ACTIVE_HIGH, "PMIC_PWR_GOOD"},
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};
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BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
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/******************************************************************************/
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/* SPI devices */
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const struct spi_device_t spi_devices[] = {
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};
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const unsigned int spi_devices_used = ARRAY_SIZE(spi_devices);
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/******************************************************************************/
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const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = {
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{
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.bus_type = EC_BUS_TYPE_I2C,
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.i2c_info = {
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.port = I2C_PORT_TCPC0,
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.addr_flags = MT6370_TCPC_I2C_ADDR_FLAGS,
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},
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.drv = &mt6370_tcpm_drv,
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},
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};
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static void board_hpd_status(int port, int hpd_lvl, int hpd_irq)
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{
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/*
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* svdm_dp_attention() did most of the work, we only need to notify
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* host here.
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*/
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host_set_single_event(EC_HOST_EVENT_USB_MUX);
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}
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struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = {
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{
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.port_addr = IT5205_I2C_ADDR1_FLAGS,
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.driver = &it5205_usb_mux_driver,
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.hpd_update = &board_hpd_status,
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},
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};
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uint16_t tcpc_get_alert_status(void)
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{
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uint16_t status = 0;
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if (!gpio_get_level(GPIO_USB_C0_PD_INT_ODL))
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status |= PD_STATUS_TCPC_ALERT_0;
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return status;
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}
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static int force_discharge;
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int board_set_active_charge_port(int charge_port)
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{
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CPRINTS("New chg p%d", charge_port);
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/* ignore all request when discharge mode is on */
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if (force_discharge)
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return EC_SUCCESS;
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switch (charge_port) {
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case CHARGE_PORT_USB_C:
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/* Don't charge from a source port */
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if (board_vbus_source_enabled(charge_port))
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return -1;
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break;
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case CHARGE_PORT_NONE:
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/*
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* To ensure the fuel gauge (max17055) is always powered
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* even when battery is disconnected, keep VBAT rail on but
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* set the charging current to minimum.
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*/
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charger_set_current(0);
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break;
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default:
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panic("Invalid charge port\n");
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break;
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}
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return EC_SUCCESS;
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}
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int board_discharge_on_ac(int enable)
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{
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int ret, port;
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if (enable) {
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port = CHARGE_PORT_NONE;
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} else {
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/* restore the charge port state */
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port = charge_manager_get_override();
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if (port == OVERRIDE_OFF)
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port = charge_manager_get_active_charge_port();
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}
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ret = board_set_active_charge_port(port);
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if (ret)
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return ret;
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force_discharge = enable;
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return charger_discharge_on_ac(enable);
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}
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int extpower_is_present(void)
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{
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/*
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* The charger will indicate VBUS presence if we're sourcing 5V,
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* so exclude such ports.
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*/
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int usb_c_extpower_present;
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if (board_vbus_source_enabled(CHARGE_PORT_USB_C))
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usb_c_extpower_present = 0;
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else
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usb_c_extpower_present = tcpm_get_vbus_level(CHARGE_PORT_USB_C);
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return usb_c_extpower_present;
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}
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int pd_snk_is_vbus_provided(int port)
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{
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if (port)
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panic("Invalid charge port\n");
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return rt946x_is_vbus_ready();
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}
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static void board_init(void)
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{
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/* If the reset cause is external, pulse PMIC force reset. */
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if (system_get_reset_flags() == EC_RESET_FLAG_RESET_PIN) {
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gpio_set_level(GPIO_PMIC_FORCE_RESET_ODL, 0);
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msleep(100);
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gpio_set_level(GPIO_PMIC_FORCE_RESET_ODL, 1);
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}
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/* Set SPI1 PB13/14/15 pins to high speed */
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STM32_GPIO_OSPEEDR(GPIO_B) |= 0xfc000000;
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/* Enable TCPC alert interrupts */
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gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL);
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/* Enable charger interrupts */
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gpio_enable_interrupt(GPIO_CHARGER_INT_ODL);
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#ifdef SECTION_IS_RW
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/* Enable interrupts from BMI160 sensor. */
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gpio_enable_interrupt(GPIO_ACCEL_INT_ODL);
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/* Enable interrupt for the camera vsync. */
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gpio_enable_interrupt(GPIO_SYNC_INT);
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#endif /* SECTION_IS_RW */
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/* Enable interrupt from PMIC. */
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gpio_enable_interrupt(GPIO_PMIC_EC_RESETB);
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/* Enable pogo interrupt */
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gpio_enable_interrupt(GPIO_POGO_ADC_INT_L);
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/* Display bias settings. */
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mt6370_db_set_voltages(6000, 5800, 5800);
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/*
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* Fix backlight led maximum current:
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* tolerance 120mA * 0.75 = 90mA.
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* (b/133655155)
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*/
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mt6370_backlight_set_dim(MT6370_BLDIM_DEFAULT * 3 / 4);
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}
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DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
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/* Motion sensors */
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/* Mutexes */
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#ifdef SECTION_IS_RW
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static struct mutex g_lid_mutex;
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static struct lsm6dsm_data lsm6dsm_data;
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/* Matrix to rotate accelerometer into standard reference frame */
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static const mat33_fp_t lid_standard_ref = {
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{FLOAT_TO_FP(-1), 0, 0},
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{0, FLOAT_TO_FP(-1), 0},
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{0, 0, FLOAT_TO_FP(1)}
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};
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struct motion_sensor_t motion_sensors[] = {
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[LID_ACCEL] = {
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.name = "Accel",
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.active_mask = SENSOR_ACTIVE_S0_S3,
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.chip = MOTIONSENSE_CHIP_LSM6DSM,
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.type = MOTIONSENSE_TYPE_ACCEL,
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.location = MOTIONSENSE_LOC_LID,
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.drv = &lsm6dsm_drv,
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.mutex = &g_lid_mutex,
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.drv_data = LSM6DSM_ST_DATA(lsm6dsm_data, MOTIONSENSE_TYPE_ACCEL),
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.int_signal = GPIO_ACCEL_INT_ODL,
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.flags = MOTIONSENSE_FLAG_INT_SIGNAL,
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.port = I2C_PORT_ACCEL,
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.i2c_spi_addr_flags = LSM6DSM_ADDR0_FLAGS,
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.rot_standard_ref = &lid_standard_ref,
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.default_range = 4, /* g */
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.min_frequency = LSM6DSM_ODR_MIN_VAL,
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.max_frequency = LSM6DSM_ODR_MAX_VAL,
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.config = {
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/* Enable accel in S0 */
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[SENSOR_CONFIG_EC_S0] = {
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.odr = 13000 | ROUND_UP_FLAG,
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.ec_rate = 100 * MSEC,
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},
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},
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},
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[LID_GYRO] = {
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.name = "Gyro",
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.active_mask = SENSOR_ACTIVE_S0_S3,
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.chip = MOTIONSENSE_CHIP_LSM6DSM,
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.type = MOTIONSENSE_TYPE_GYRO,
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.location = MOTIONSENSE_LOC_LID,
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.drv = &lsm6dsm_drv,
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.mutex = &g_lid_mutex,
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.drv_data = LSM6DSM_ST_DATA(lsm6dsm_data, MOTIONSENSE_TYPE_GYRO),
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.port = I2C_PORT_ACCEL,
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.i2c_spi_addr_flags = LSM6DSM_ADDR0_FLAGS,
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.default_range = 1000 | ROUND_UP_FLAG, /* dps */
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.rot_standard_ref = &lid_standard_ref,
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.min_frequency = LSM6DSM_ODR_MIN_VAL,
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.max_frequency = LSM6DSM_ODR_MAX_VAL,
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},
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[VSYNC] = {
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.name = "Camera vsync",
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.active_mask = SENSOR_ACTIVE_S0,
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.chip = MOTIONSENSE_CHIP_GPIO,
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.type = MOTIONSENSE_TYPE_SYNC,
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.location = MOTIONSENSE_LOC_CAMERA,
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.drv = &sync_drv,
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.default_range = 0,
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.min_frequency = 0,
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.max_frequency = 1,
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},
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};
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const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
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#endif /* SECTION_IS_RW */
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void usb_charger_set_switches(int port, enum usb_switch setting)
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{
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}
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/*
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* Return if VBUS is sagging too low
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*/
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int board_is_vbus_too_low(int port, enum chg_ramp_vbus_state ramp_state)
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{
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/*
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* Though we have a more tolerant range (3.9V~13.4V), setting 4400 to
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* prevent from a bad charger crashed.
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*
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* TODO(b:131284131): mt6370 VBUS reading is not accurate currently.
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* Vendor will provide a workaround solution to fix the gap between ADC
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* reading and actual voltage. After the workaround applied, we could
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* try to raise this value to 4600. (when it says it read 4400, it is
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* actually close to 4600)
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*/
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return charger_get_vbus_voltage(port) < 4400;
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}
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__override int board_charge_port_is_sink(int port)
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{
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/* TODO(b:128386458): Check POGO_ADC_INT_L */
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return 1;
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}
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__override int board_charge_port_is_connected(int port)
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{
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return gpio_get_level(GPIO_POGO_VBUS_PRESENT);
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}
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__override
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void board_fill_source_power_info(int port,
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struct ec_response_usb_pd_power_info *r)
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{
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r->meas.voltage_now = 3300;
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r->meas.voltage_max = 3300;
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r->meas.current_max = 1500;
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r->meas.current_lim = 1500;
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r->max_power = r->meas.voltage_now * r->meas.current_max;
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}
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