diff options
Diffstat (limited to 'zephyr/program/skyrim/src/usbc_config.c')
| -rw-r--r-- | zephyr/program/skyrim/src/usbc_config.c | 394 |
1 files changed, 0 insertions, 394 deletions
diff --git a/zephyr/program/skyrim/src/usbc_config.c b/zephyr/program/skyrim/src/usbc_config.c deleted file mode 100644 index 47d0ac6a29..0000000000 --- a/zephyr/program/skyrim/src/usbc_config.c +++ /dev/null @@ -1,394 +0,0 @@ -/* Copyright 2021 The ChromiumOS Authors - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -/* Skyrim family-specific USB-C configuration */ - -#include "battery_fuel_gauge.h" -#include "charge_manager.h" -#include "charge_ramp.h" -#include "charge_state.h" -#include "charge_state_v2.h" -#include "charger.h" -#include "cros_board_info.h" -#include "cros_cbi.h" -#include "driver/bc12/pi3usb9201.h" -#include "driver/charger/isl9241.h" -#include "driver/ppc/nx20p348x.h" -#include "driver/retimer/anx7483_public.h" -#include "driver/retimer/ps8811.h" -#include "driver/retimer/ps8818_public.h" -#include "driver/tcpm/nct38xx.h" -#include "driver/usb_mux/amd_fp6.h" -#include "gpio/gpio_int.h" -#include "hooks.h" -#include "ioexpander.h" -#include "power.h" -#include "usb_mux.h" -#include "usb_pd_tcpm.h" -#include "usbc/usb_muxes.h" -#include "usbc_ppc.h" - -#include <zephyr/drivers/gpio.h> - -#define CPRINTSUSB(format, args...) cprints(CC_USBCHARGE, format, ##args) -#define CPRINTFUSB(format, args...) cprintf(CC_USBCHARGE, format, ##args) - -/* USB-A ports */ -enum usba_port { USBA_PORT_A0 = 0, USBA_PORT_A1, USBA_PORT_COUNT }; - -/* USB-C ports */ -enum usbc_port { USBC_PORT_C0 = 0, USBC_PORT_C1, USBC_PORT_COUNT }; -BUILD_ASSERT(USBC_PORT_COUNT == CONFIG_USB_PD_PORT_MAX_COUNT); - -static void reset_nct38xx_port(int port); - -static void usbc_interrupt_init(void) -{ - /* Enable PPC interrupts. */ - gpio_enable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_c0_ppc)); - gpio_enable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_c1_ppc)); - - /* 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_c1_tcpc)); - - /* Enable BC 1.2 interrupts */ - gpio_enable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_c0_bc12)); - gpio_enable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_c1_bc12)); - - /* Enable SBU fault interrupts */ - gpio_enable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_c0_sbu_fault)); - gpio_enable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_c1_sbu_fault)); -} -DECLARE_HOOK(HOOK_INIT, usbc_interrupt_init, HOOK_PRIO_POST_I2C); - -static void usb_fault_interrupt_init(void) -{ - /* Enable USB fault interrupts when we hit S5 */ - gpio_enable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_hub_fault)); - gpio_enable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_a0_fault)); - gpio_enable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_a1_fault)); -} -DECLARE_HOOK(HOOK_CHIPSET_STARTUP, usb_fault_interrupt_init, HOOK_PRIO_DEFAULT); - -static void usb_fault_interrupt_disable(void) -{ - /* Disable USB fault interrupts leaving S5 */ - gpio_disable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_hub_fault)); - gpio_disable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_a0_fault)); - gpio_disable_dt_interrupt(GPIO_INT_FROM_NODELABEL(int_usb_a1_fault)); -} -DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, usb_fault_interrupt_disable, - HOOK_PRIO_DEFAULT); - -int board_set_active_charge_port(int port) -{ - int is_valid_port = (port >= 0 && port < CONFIG_USB_PD_PORT_MAX_COUNT); - int i; - int rv; - - if (port == CHARGE_PORT_NONE) { - CPRINTSUSB("Disabling all charger ports"); - - /* Disable all ports. */ - for (i = 0; i < ppc_cnt; i++) { - /* - * If this port had booted in dead battery mode, go - * ahead and reset it so EN_SNK responds properly. - */ - if (nct38xx_get_boot_type(i) == - NCT38XX_BOOT_DEAD_BATTERY) { - reset_nct38xx_port(i); - pd_set_error_recovery(i); - } - - /* - * Do not return early if one fails otherwise we can - * get into a boot loop assertion failure. - */ - if (ppc_vbus_sink_enable(i, 0)) - CPRINTSUSB("Disabling C%d as sink failed.", i); - } - - return EC_SUCCESS; - } else if (!is_valid_port) { - return EC_ERROR_INVAL; - } - - /* - * Check if we can reset any ports in dead battery mode - * - * The NCT3807 may continue to keep EN_SNK low on the dead battery port - * and allow a dangerous level of voltage to pass through to the initial - * charge port (see b/183660105). We must reset the ports if we have - * sufficient battery to do so, which will bring EN_SNK back under - * normal control. - */ - rv = EC_SUCCESS; - for (i = 0; i < board_get_usb_pd_port_count(); i++) { - if (nct38xx_get_boot_type(i) == NCT38XX_BOOT_DEAD_BATTERY) { - CPRINTSUSB("Found dead battery on %d", i); - /* - * If we have battery, get this port reset ASAP. - * This means temporarily rejecting charge manager - * sets to it. - */ - if (pd_is_battery_capable()) { - reset_nct38xx_port(i); - pd_set_error_recovery(i); - - if (port == i) - rv = EC_ERROR_INVAL; - } else if (port != i) { - /* - * If other port is selected and in dead battery - * mode, reset this port. Otherwise, reject - * change because we'll brown out. - */ - if (nct38xx_get_boot_type(port) == - NCT38XX_BOOT_DEAD_BATTERY) { - reset_nct38xx_port(i); - pd_set_error_recovery(i); - } else { - rv = EC_ERROR_INVAL; - } - } - } - } - - if (rv != EC_SUCCESS) - return rv; - - /* Check if the port is sourcing VBUS. */ - if (tcpm_get_src_ctrl(port)) { - CPRINTSUSB("Skip enable C%d", port); - return EC_ERROR_INVAL; - } - - CPRINTSUSB("New charge port: C%d", port); - - /* - * Turn off the other ports' sink path FETs, before enabling the - * requested charge port. - */ - for (i = 0; i < ppc_cnt; i++) { - if (i == port) - continue; - - if (ppc_vbus_sink_enable(i, 0)) - CPRINTSUSB("C%d: sink path disable failed.", i); - } - - /* Enable requested charge port. */ - if (ppc_vbus_sink_enable(port, 1)) { - CPRINTSUSB("C%d: sink path enable failed.", port); - return EC_ERROR_UNKNOWN; - } - - return EC_SUCCESS; -} - -void sbu_fault_interrupt(enum gpio_signal signal) -{ - int port = signal == IOEX_USB_C1_FAULT_ODL ? 1 : 0; - - CPRINTSUSB("C%d: SBU fault", port); - pd_handle_overcurrent(port); -} - -void usb_fault_interrupt(enum gpio_signal signal) -{ - int out; - - CPRINTSUSB("USB fault(%d), alerting the SoC", signal); - out = gpio_pin_get_dt( - GPIO_DT_FROM_NODELABEL(gpio_usb_hub_fault_q_odl)) && - gpio_pin_get_dt(GPIO_DT_FROM_NODELABEL(ioex_usb_a0_fault_odl)) && - gpio_pin_get_dt(GPIO_DT_FROM_NODELABEL(ioex_usb_a1_fault_db_odl)); - - gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(gpio_usb_fault_odl), out); -} - -void usb_pd_soc_interrupt(enum gpio_signal signal) -{ - /* - * This interrupt is unexpected with our use of the SoC mux, so just log - * it as a point of interest. - */ - CPRINTSUSB("SOC PD Interrupt"); -} - -#ifdef CONFIG_CHARGER_ISL9241 -/* Round up 3250 max current to multiple of 128mA for ISL9241 AC prochot. */ -#define SKYRIM_AC_PROCHOT_CURRENT_MA 3328 -static void set_ac_prochot(void) -{ - isl9241_set_ac_prochot(CHARGER_SOLO, SKYRIM_AC_PROCHOT_CURRENT_MA); -} -DECLARE_HOOK(HOOK_INIT, set_ac_prochot, HOOK_PRIO_DEFAULT); -#endif /* CONFIG_CHARGER_ISL9241 */ - -void tcpc_alert_event(enum gpio_signal signal) -{ - int port; - - switch (signal) { - case GPIO_USB_C0_TCPC_INT_ODL: - port = 0; - break; - case GPIO_USB_C1_TCPC_INT_ODL: - port = 1; - break; - default: - return; - } - - schedule_deferred_pd_interrupt(port); -} - -static void reset_nct38xx_port(int port) -{ - const struct gpio_dt_spec *reset_gpio_l; - const struct device *ioex_port0, *ioex_port1; - - /* TODO(b/225189538): Save and restore ioex signals */ - if (port == USBC_PORT_C0) { - reset_gpio_l = GPIO_DT_FROM_NODELABEL(gpio_usb_c0_tcpc_rst_l); - ioex_port0 = DEVICE_DT_GET(DT_NODELABEL(ioex_c0_port0)); - ioex_port1 = DEVICE_DT_GET(DT_NODELABEL(ioex_c0_port1)); - } else if (port == USBC_PORT_C1) { - reset_gpio_l = GPIO_DT_FROM_NODELABEL(gpio_usb_c1_tcpc_rst_l); - ioex_port0 = DEVICE_DT_GET(DT_NODELABEL(ioex_c1_port0)); - ioex_port1 = DEVICE_DT_GET(DT_NODELABEL(ioex_c1_port1)); - } else { - /* Invalid port: do nothing */ - return; - } - - gpio_pin_set_dt(reset_gpio_l, 0); - msleep(NCT38XX_RESET_HOLD_DELAY_MS); - gpio_pin_set_dt(reset_gpio_l, 1); - nct38xx_reset_notify(port); - if (NCT3807_RESET_POST_DELAY_MS != 0) - msleep(NCT3807_RESET_POST_DELAY_MS); - - /* Re-enable the IO expander pins */ - gpio_reset_port(ioex_port0); - gpio_reset_port(ioex_port1); -} - -void board_reset_pd_mcu(void) -{ - /* Reset TCPC0 */ - reset_nct38xx_port(USBC_PORT_C0); - - /* Reset TCPC1 */ - reset_nct38xx_port(USBC_PORT_C1); -} - -uint16_t tcpc_get_alert_status(void) -{ - uint16_t status = 0; - - /* - * Check which port has the ALERT line set and ignore if that TCPC has - * its reset line active. - */ - if (!gpio_pin_get_dt( - GPIO_DT_FROM_NODELABEL(gpio_usb_c0_tcpc_int_odl))) { - if (gpio_pin_get_dt(GPIO_DT_FROM_NODELABEL( - gpio_usb_c0_tcpc_rst_l)) != 0) - status |= PD_STATUS_TCPC_ALERT_0; - } - - if (!gpio_pin_get_dt( - GPIO_DT_FROM_NODELABEL(gpio_usb_c1_tcpc_int_odl))) { - if (gpio_pin_get_dt(GPIO_DT_FROM_NODELABEL( - gpio_usb_c1_tcpc_rst_l)) != 0) - status |= PD_STATUS_TCPC_ALERT_1; - } - - return status; -} - -void bc12_interrupt(enum gpio_signal signal) -{ - switch (signal) { - case GPIO_USB_C0_BC12_INT_ODL: - usb_charger_task_set_event(0, USB_CHG_EVENT_BC12); - break; - - case GPIO_USB_C1_BC12_INT_ODL: - usb_charger_task_set_event(1, USB_CHG_EVENT_BC12); - break; - - default: - break; - } -} - -/** - * Return if VBUS is sagging too low - * - * For legacy BC1.2 charging with CONFIG_CHARGE_RAMP_SW, ramp up input current - * until voltage drops to 4.5V. Don't go lower than this to be kind to the - * charger (see b/67964166). - */ -#define BC12_MIN_VOLTAGE 4500 -int board_is_vbus_too_low(int port, enum chg_ramp_vbus_state ramp_state) -{ - int voltage = 0; - int rv; - - rv = charger_get_vbus_voltage(port, &voltage); - - if (rv) { - CPRINTSUSB("%s rv=%d", __func__, rv); - return 0; - } - - /* - * b/168569046: The ISL9241 sometimes incorrectly reports 0 for unknown - * reason, causing ramp to stop at 0.5A. Workaround this by ignoring 0. - * This partly defeats the point of ramping, but will still catch - * VBUS below 4.5V and above 0V. - */ - if (voltage == 0) { - CPRINTSUSB("%s vbus=0", __func__); - return 0; - } - - if (voltage < BC12_MIN_VOLTAGE) - CPRINTSUSB("%s vbus=%d", __func__, voltage); - - return voltage < BC12_MIN_VOLTAGE; -} - -#define SAFE_RESET_VBUS_DELAY_MS 900 -#define SAFE_RESET_VBUS_MV 5000 -void board_hibernate(void) -{ - int port; - enum ec_error_list ret; - - /* - * If we are charging, then drop the Vbus level down to 5V to ensure - * that we don't get locked out of the 6.8V OVLO for our PPCs in - * dead-battery mode. This is needed when the TCPC/PPC rails go away. - * (b/79218851, b/143778351, b/147007265) - */ - port = charge_manager_get_active_charge_port(); - if (port != CHARGE_PORT_NONE) { - pd_request_source_voltage(port, SAFE_RESET_VBUS_MV); - - /* Give PD task and PPC chip time to get to 5V */ - msleep(SAFE_RESET_VBUS_DELAY_MS); - } - - /* Try to put our battery fuel gauge into sleep mode */ - ret = battery_sleep_fuel_gauge(); - if ((ret != EC_SUCCESS) && (ret != EC_ERROR_UNIMPLEMENTED)) - cprints(CC_SYSTEM, "Failed to send battery sleep command"); -} |