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/* Copyright 2022 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.
*/
/* Lazor board-specific USB-C configuration */
#include "battery_fuel_gauge.h"
#include "bc12/pi3usb9201_public.h"
#include "charger.h"
#include "charger/isl923x_public.h"
#include "charge_manager.h"
#include "charge_state.h"
#include "common.h"
#include "config.h"
#include "driver/ln9310.h"
#include "gpio_signal.h"
#include "gpio/gpio_int.h"
#include "hooks.h"
#include "ppc/sn5s330_public.h"
#include "system.h"
#include "tcpm/ps8xxx_public.h"
#include "tcpm/tcpci.h"
#include "timer.h"
#include "usb_pd.h"
#include "usb_mux.h"
#include "usbc_ocp.h"
#include "usbc_ppc.h"
#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args)
#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args)
const struct charger_config_t chg_chips[] = {
{
.i2c_port = I2C_PORT_CHARGER,
.i2c_addr_flags = ISL923X_ADDR_FLAGS,
.drv = &isl923x_drv,
},
};
int charger_profile_override(struct charge_state_data *curr)
{
int usb_mv;
int port;
if (curr->state != ST_CHARGE)
return 0;
/* Lower the max requested voltage to 5V when battery is full. */
if (chipset_in_state(CHIPSET_STATE_ANY_OFF) &&
!(curr->batt.flags & BATT_FLAG_BAD_STATUS) &&
!(curr->batt.flags & BATT_FLAG_WANT_CHARGE) &&
(curr->batt.status & STATUS_FULLY_CHARGED))
usb_mv = 5000;
else
usb_mv = PD_MAX_VOLTAGE_MV;
if (pd_get_max_voltage() != usb_mv) {
CPRINTS("VBUS limited to %dmV", usb_mv);
for (port = 0; port < CONFIG_USB_PD_PORT_MAX_COUNT; port++)
pd_set_external_voltage_limit(port, usb_mv);
}
return 0;
}
enum ec_status charger_profile_override_get_param(uint32_t param,
uint32_t *value)
{
return EC_RES_INVALID_PARAM;
}
enum ec_status charger_profile_override_set_param(uint32_t param,
uint32_t value)
{
return EC_RES_INVALID_PARAM;
}
static void usba_oc_deferred(void)
{
/* Use next number after all USB-C ports to indicate the USB-A port */
board_overcurrent_event(CONFIG_USB_PD_PORT_MAX_COUNT,
!gpio_pin_get_dt(GPIO_DT_FROM_NODELABEL(
gpio_usb_a0_oc_odl)));
}
DECLARE_DEFERRED(usba_oc_deferred);
void usba_oc_interrupt(enum gpio_signal signal)
{
hook_call_deferred(&usba_oc_deferred_data, 0);
}
void ppc_interrupt(enum gpio_signal signal)
{
switch (signal) {
case GPIO_SIGNAL(DT_NODELABEL(gpio_usb_c0_swctl_int_odl)):
sn5s330_interrupt(0);
break;
case GPIO_SIGNAL(DT_NODELABEL(gpio_usb_c1_swctl_int_odl)):
sn5s330_interrupt(1);
break;
default:
break;
}
}
static void board_connect_c0_sbu_deferred(void)
{
/*
* If CCD_MODE_ODL asserts, it means there's a debug accessory connected
* and we should enable the SBU FETs.
*/
ppc_set_sbu(0, 1);
}
DECLARE_DEFERRED(board_connect_c0_sbu_deferred);
void board_connect_c0_sbu(enum gpio_signal s)
{
hook_call_deferred(&board_connect_c0_sbu_deferred_data, 0);
}
/* GPIO Interrupt Handlers */
void tcpc_alert_event(enum gpio_signal signal)
{
int port = -1;
switch (signal) {
case GPIO_USB_C0_PD_INT_ODL:
port = 0;
break;
case GPIO_USB_C1_PD_INT_ODL:
port = 1;
break;
default:
return;
}
schedule_deferred_pd_interrupt(port);
}
/*
* Port-0/1 USB mux driver.
*
* The USB mux is handled by TCPC chip and the HPD update is through a GPIO
* to AP. But the TCPC chip is also needed to know the HPD status; otherwise,
* the mux misbehaves.
*/
const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = {
{
.usb_port = 0,
.driver = &tcpci_tcpm_usb_mux_driver,
.hpd_update = &ps8xxx_tcpc_update_hpd_status,
},
{
.usb_port = 1,
.driver = &tcpci_tcpm_usb_mux_driver,
.hpd_update = &ps8xxx_tcpc_update_hpd_status,
}
};
const int usb_port_enable[USB_PORT_COUNT] = {
GPIO_EN_USB_A_5V,
};
__override int board_get_default_battery_type(void)
{
/*
* A 2S battery is set as default. If the board is configured to use
* a 3S battery, according to its SKU_ID, return a 3S battery as
* default. It helps to configure the charger to output a correct
* voltage in case the battery is not attached.
*/
if (board_get_battery_cell_type() == BATTERY_CELL_TYPE_3S)
return BATTERY_LGC_AP18C8K;
return DEFAULT_BATTERY_TYPE;
}
/* Initialize board USC-C things */
static void board_init_usbc(void)
{
/* Enable USB-A overcurrent interrupt */
gpio_enable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_a0_oc));
/*
* The H1 SBU line for CCD are behind PPC chip. The PPC internal FETs
* for SBU may be disconnected after DP alt mode is off. Should enable
* the CCD_MODE_ODL interrupt to make sure the SBU FETs are connected.
*/
gpio_enable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_ccd_mode));
}
DECLARE_HOOK(HOOK_INIT, board_init_usbc, HOOK_PRIO_DEFAULT);
void board_tcpc_init(void)
{
/* Only reset TCPC if not sysjump */
if (!system_jumped_late()) {
/* TODO(crosbug.com/p/61098): How long do we need to wait? */
board_reset_pd_mcu();
}
/* Enable PPC interrupts */
gpio_enable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_c0_swctl));
/* Enable TCPC interrupts */
gpio_enable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_c0_tcpc));
gpio_enable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_c0_tcpc));
/*
* Initialize HPD to low; after sysjump SOC needs to see
* HPD pulse to enable video path
*/
for (int port = 0; port < CONFIG_USB_PD_PORT_MAX_COUNT; ++port)
usb_mux_hpd_update(port, USB_PD_MUX_HPD_LVL_DEASSERTED |
USB_PD_MUX_HPD_IRQ_DEASSERTED);
}
DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_POST_I2C);
void board_reset_pd_mcu(void)
{
cprints(CC_USB, "Resetting TCPCs...");
cflush();
gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_usb_c0_pd_rst_l), 0);
gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_usb_c1_pd_rst_l), 0);
msleep(PS8XXX_RESET_DELAY_MS);
gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_usb_c0_pd_rst_l), 1);
gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_usb_c1_pd_rst_l), 1);
}
void board_set_tcpc_power_mode(int port, int mode)
{
/* Ignore the "mode" to turn the chip on. We can only do a reset. */
if (mode)
return;
board_reset_pd_mcu();
}
int board_vbus_sink_enable(int port, int enable)
{
/* Both ports are controlled by PPC SN5S330 */
return ppc_vbus_sink_enable(port, enable);
}
int board_is_sourcing_vbus(int port)
{
/* Both ports are controlled by PPC SN5S330 */
return ppc_is_sourcing_vbus(port);
}
void board_overcurrent_event(int port, int is_overcurrented)
{
/* TODO(b/120231371): Notify AP */
CPRINTS("p%d: overcurrent!", port);
}
int board_set_active_charge_port(int port)
{
int is_real_port = (port >= 0 &&
port < CONFIG_USB_PD_PORT_MAX_COUNT);
int i;
if (!is_real_port && port != CHARGE_PORT_NONE)
return EC_ERROR_INVAL;
if (port == CHARGE_PORT_NONE) {
CPRINTS("Disabling all charging port");
/* Disable all ports. */
for (i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++) {
/*
* Do not return early if one fails otherwise we can
* get into a boot loop assertion failure.
*/
if (board_vbus_sink_enable(i, 0))
CPRINTS("Disabling p%d sink path failed.", i);
}
return EC_SUCCESS;
}
/* Check if the port is sourcing VBUS. */
if (board_is_sourcing_vbus(port)) {
CPRINTS("Skip enable p%d", port);
return EC_ERROR_INVAL;
}
CPRINTS("New charge port: p%d", port);
/*
* Turn off the other ports' sink path FETs, before enabling the
* requested charge port.
*/
for (i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++) {
if (i == port)
continue;
if (board_vbus_sink_enable(i, 0))
CPRINTS("p%d: sink path disable failed.", i);
}
/* Enable requested charge port. */
if (board_vbus_sink_enable(port, 1)) {
CPRINTS("p%d: sink path enable failed.", port);
return EC_ERROR_UNKNOWN;
}
return EC_SUCCESS;
}
void board_set_charge_limit(int port, int supplier, int charge_ma,
int max_ma, int charge_mv)
{
/*
* Ignore lower charge ceiling on PD transition if our battery is
* critical, as we may brownout.
*/
if (supplier == CHARGE_SUPPLIER_PD &&
charge_ma < 1500 &&
charge_get_percent() < CONFIG_CHARGER_MIN_BAT_PCT_FOR_POWER_ON) {
CPRINTS("Using max ilim %d", max_ma);
charge_ma = max_ma;
}
charge_set_input_current_limit(MAX(charge_ma,
CONFIG_CHARGER_INPUT_CURRENT),
charge_mv);
}
uint16_t tcpc_get_alert_status(void)
{
uint16_t status = 0;
if (!gpio_pin_get_dt(GPIO_DT_FROM_NODELABEL(gpio_usb_c0_pd_int_odl)))
if (gpio_pin_get_dt(
GPIO_DT_FROM_NODELABEL(gpio_usb_c0_pd_rst_l)))
status |= PD_STATUS_TCPC_ALERT_0;
if (!gpio_pin_get_dt(GPIO_DT_FROM_NODELABEL(gpio_usb_c0_pd_int_odl)))
if (gpio_pin_get_dt(
GPIO_DT_FROM_NODELABEL(gpio_usb_c1_pd_rst_l)))
status |= PD_STATUS_TCPC_ALERT_1;
return status;
}
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