diff options
Diffstat (limited to 'zephyr/program/nissa/xivu/src/usbc.c')
| -rw-r--r-- | zephyr/program/nissa/xivu/src/usbc.c | 343 |
1 files changed, 0 insertions, 343 deletions
diff --git a/zephyr/program/nissa/xivu/src/usbc.c b/zephyr/program/nissa/xivu/src/usbc.c deleted file mode 100644 index 174eb07c60..0000000000 --- a/zephyr/program/nissa/xivu/src/usbc.c +++ /dev/null @@ -1,343 +0,0 @@ -/* Copyright 2022 The ChromiumOS Authors - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#include "charge_state_v2.h" -#include "chipset.h" -#include "driver/charger/isl923x_public.h" -#include "driver/retimer/anx7483_public.h" -#include "driver/tcpm/raa489000.h" -#include "driver/tcpm/tcpci.h" -#include "hooks.h" -#include "nissa_common.h" -#include "system.h" -#include "temp_sensor/temp_sensor.h" -#include "usb_mux.h" - -#include <zephyr/logging/log.h> - -LOG_MODULE_DECLARE(nissa, CONFIG_NISSA_LOG_LEVEL); - -int board_is_sourcing_vbus(int port) -{ - int regval; - - tcpc_read(port, TCPC_REG_POWER_STATUS, ®val); - return !!(regval & TCPC_REG_POWER_STATUS_SOURCING_VBUS); -} - -int board_set_active_charge_port(int port) -{ - int is_real_port = (port >= 0 && port < CONFIG_USB_PD_PORT_MAX_COUNT); - int i; - int old_port; - - if (!is_real_port && port != CHARGE_PORT_NONE) - return EC_ERROR_INVAL; - - old_port = charge_manager_get_active_charge_port(); - - LOG_INF("New chg p%d", port); - - /* Disable all ports. */ - if (port == CHARGE_PORT_NONE) { - for (i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++) { - tcpc_write(i, TCPC_REG_COMMAND, - TCPC_REG_COMMAND_SNK_CTRL_LOW); - raa489000_enable_asgate(i, false); - } - - return EC_SUCCESS; - } - - /* Check if port is sourcing VBUS. */ - if (board_is_sourcing_vbus(port)) { - LOG_WRN("Skip enable p%d", port); - return EC_ERROR_INVAL; - } - - /* - * 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 (tcpc_write(i, TCPC_REG_COMMAND, - TCPC_REG_COMMAND_SNK_CTRL_LOW)) - LOG_WRN("p%d: sink path disable failed.", i); - raa489000_enable_asgate(i, false); - } - - /* - * Stop the charger IC from switching while changing ports. Otherwise, - * we can overcurrent the adapter we're switching to. (crbug.com/926056) - */ - if (old_port != CHARGE_PORT_NONE) - charger_discharge_on_ac(1); - - /* Enable requested charge port. */ - if (raa489000_enable_asgate(port, true) || - tcpc_write(port, TCPC_REG_COMMAND, - TCPC_REG_COMMAND_SNK_CTRL_HIGH)) { - LOG_WRN("p%d: sink path enable failed.", port); - charger_discharge_on_ac(0); - return EC_ERROR_UNKNOWN; - } - - /* Allow the charger IC to begin/continue switching. */ - charger_discharge_on_ac(0); - - return EC_SUCCESS; -} - -uint16_t tcpc_get_alert_status(void) -{ - uint16_t status = 0; - int regval; - - /* - * The interrupt line is shared between the TCPC and BC1.2 detector IC. - * Therefore, go out and actually read the alert registers to report the - * alert status. - */ - if (!gpio_pin_get_dt(GPIO_DT_FROM_NODELABEL(gpio_usb_c0_int_odl))) { - if (!tcpc_read16(0, TCPC_REG_ALERT, ®val)) { - /* The TCPCI Rev 1.0 spec says to ignore bits 14:12. */ - if (!(tcpc_config[0].flags & TCPC_FLAGS_TCPCI_REV2_0)) - regval &= ~((1 << 14) | (1 << 13) | (1 << 12)); - - if (regval) - status |= PD_STATUS_TCPC_ALERT_0; - } - } - - if (board_get_usb_pd_port_count() == 2 && - !gpio_pin_get_dt(GPIO_DT_FROM_ALIAS(gpio_usb_c1_int_odl))) { - if (!tcpc_read16(1, TCPC_REG_ALERT, ®val)) { - /* TCPCI spec Rev 1.0 says to ignore bits 14:12. */ - if (!(tcpc_config[1].flags & TCPC_FLAGS_TCPCI_REV2_0)) - regval &= ~((1 << 14) | (1 << 13) | (1 << 12)); - - if (regval) - status |= PD_STATUS_TCPC_ALERT_1; - } - } - - return status; -} - -void pd_power_supply_reset(int port) -{ - /* Disable VBUS */ - tcpc_write(port, TCPC_REG_COMMAND, TCPC_REG_COMMAND_SRC_CTRL_LOW); - - /* Notify host of power info change. */ - pd_send_host_event(PD_EVENT_POWER_CHANGE); -} - -/* VBUS_CURRENT_TARGET */ -#define RAA489000_VBUS_CURRENT_TARGET_3_3A 0x68 /* 3.3A */ - -__override void typec_set_source_current_limit(int port, enum tcpc_rp_value rp) -{ - int rv; - - if (port < 0 || port >= CONFIG_USB_PD_PORT_MAX_COUNT) - return; - - int selected_cur = rp == TYPEC_RP_3A0 ? - RAA489000_VBUS_CURRENT_TARGET_3_3A : - RAA489000_VBUS_CURRENT_TARGET_1_5A; - - rv = tcpc_write16(port, RAA489000_VBUS_CURRENT_TARGET, selected_cur); - - if (rv != EC_SUCCESS) { - LOG_WRN("Failed to set source ilimit on port %d to %d: %d", - port, selected_cur, rv); - } -} - -int pd_set_power_supply_ready(int port) -{ - int rv; - - if (port >= CONFIG_USB_PD_PORT_MAX_COUNT) - return EC_ERROR_INVAL; - - /* Disable charging. */ - rv = tcpc_write(port, TCPC_REG_COMMAND, TCPC_REG_COMMAND_SNK_CTRL_LOW); - if (rv) - return rv; - - /* Our policy is not to source VBUS when the AP is off. */ - if (chipset_in_state(CHIPSET_STATE_ANY_OFF)) - return EC_ERROR_NOT_POWERED; - - /* Provide Vbus. */ - rv = tcpc_write(port, TCPC_REG_COMMAND, TCPC_REG_COMMAND_SRC_CTRL_HIGH); - if (rv) - return rv; - - rv = raa489000_enable_asgate(port, true); - if (rv) - return rv; - - /* Notify host of power info change. */ - pd_send_host_event(PD_EVENT_POWER_CHANGE); - - return EC_SUCCESS; -} - -void board_reset_pd_mcu(void) -{ - /* - * TODO(b:147316511): could send a reset command to the TCPC here - * if needed. - */ -} - -/* - * Because the TCPCs and BC1.2 chips share interrupt lines, it's possible - * for an interrupt to be lost if one asserts the IRQ, the other does the same - * then the first releases it: there will only be one falling edge to trigger - * the interrupt, and the line will be held low. We handle this by running a - * deferred check after a falling edge to see whether the IRQ is still being - * asserted. If it is, we assume an interrupt may have been lost and we need - * to poll each chip for events again. - */ -#define USBC_INT_POLL_DELAY_US 5000 - -static void poll_c0_int(void); -DECLARE_DEFERRED(poll_c0_int); -static void poll_c1_int(void); -DECLARE_DEFERRED(poll_c1_int); - -static void usbc_interrupt_trigger(int port) -{ - schedule_deferred_pd_interrupt(port); - usb_charger_task_set_event(port, USB_CHG_EVENT_BC12); -} - -static inline void poll_usb_gpio(int port, const struct gpio_dt_spec *gpio, - const struct deferred_data *ud) -{ - if (!gpio_pin_get_dt(gpio)) { - usbc_interrupt_trigger(port); - hook_call_deferred(ud, USBC_INT_POLL_DELAY_US); - } -} - -static void poll_c0_int(void) -{ - poll_usb_gpio(0, GPIO_DT_FROM_NODELABEL(gpio_usb_c0_int_odl), - &poll_c0_int_data); -} - -static void poll_c1_int(void) -{ - poll_usb_gpio(1, GPIO_DT_FROM_ALIAS(gpio_usb_c1_int_odl), - &poll_c1_int_data); -} - -void usb_interrupt(enum gpio_signal signal) -{ - int port; - const struct deferred_data *ud; - - if (signal == GPIO_SIGNAL(DT_NODELABEL(gpio_usb_c0_int_odl))) { - port = 0; - ud = &poll_c0_int_data; - } else { - port = 1; - ud = &poll_c1_int_data; - } - /* - * We've just been called from a falling edge, so there's definitely - * no lost IRQ right now. Cancel any pending check. - */ - hook_call_deferred(ud, -1); - /* Trigger polling of TCPC and BC1.2 in respective tasks */ - usbc_interrupt_trigger(port); - /* Check for lost interrupts in a bit */ - hook_call_deferred(ud, USBC_INT_POLL_DELAY_US); -} - -struct chg_curr_step { - int on; - int off; - int curr_ma; -}; - -static const struct chg_curr_step chg_curr_table[] = { - { .on = 0, .off = 36, .curr_ma = 2800 }, - { .on = 46, .off = 36, .curr_ma = 1500 }, - { .on = 48, .off = 38, .curr_ma = 1000 }, -}; - -/* All charge current tables must have the same number of levels */ -#define NUM_CHG_CURRENT_LEVELS ARRAY_SIZE(chg_curr_table) - -int charger_profile_override(struct charge_state_data *curr) -{ - int rv; - int chg_temp_c; - int current; - int thermal_sensor0; - static int current_level; - static int prev_tmp; - - /* - * Precharge must be executed when communication is failed on - * dead battery. - */ - if (!(curr->batt.flags & BATT_FLAG_RESPONSIVE)) - return 0; - - current = curr->requested_current; - - rv = temp_sensor_read( - TEMP_SENSOR_ID_BY_DEV(DT_NODELABEL(temp_charger1)), - &thermal_sensor0); - chg_temp_c = K_TO_C(thermal_sensor0); - - if (rv != EC_SUCCESS) - return 0; - - if (chipset_in_state(CHIPSET_STATE_ON)) { - if (chg_temp_c < prev_tmp) { - if (chg_temp_c <= chg_curr_table[current_level].off) - current_level = current_level - 1; - } else if (chg_temp_c > prev_tmp) { - if (chg_temp_c >= chg_curr_table[current_level + 1].on) - current_level = current_level + 1; - } - /* - * Prevent level always minus 0 or over table steps. - */ - if (current_level < 0) - current_level = 0; - else if (current_level >= NUM_CHG_CURRENT_LEVELS) - current_level = NUM_CHG_CURRENT_LEVELS - 1; - - prev_tmp = chg_temp_c; - current = chg_curr_table[current_level].curr_ma; - - curr->requested_current = MIN(curr->requested_current, current); - } - 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; -} |