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Diffstat (limited to 'board/puff/board.c')
| -rw-r--r-- | board/puff/board.c | 937 |
1 files changed, 0 insertions, 937 deletions
diff --git a/board/puff/board.c b/board/puff/board.c deleted file mode 100644 index b71d6670aa..0000000000 --- a/board/puff/board.c +++ /dev/null @@ -1,937 +0,0 @@ -/* Copyright 2019 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. - */ - -/* Puff board-specific configuration */ - -#include "adc.h" -#include "button.h" -#include "charge_manager.h" -#include "charge_state_v2.h" -#include "chipset.h" -#include "common.h" -#include "core/cortex-m/cpu.h" -#include "cros_board_info.h" -#include "driver/ina3221.h" -#include "driver/ppc/sn5s330.h" -#include "driver/tcpm/anx7447.h" -#include "driver/tcpm/ps8xxx.h" -#include "driver/tcpm/tcpci.h" -#include "ec_commands.h" -#include "extpower.h" -#include "fan.h" -#include "fan_chip.h" -#include "gpio.h" -#include "hooks.h" -#include "host_command.h" -#include "lid_switch.h" -#include "power.h" -#include "power/cometlake-discrete.h" -#include "power_button.h" -#include "pwm.h" -#include "pwm_chip.h" -#include "spi.h" -#include "switch.h" -#include "system.h" -#include "task.h" -#include "temp_sensor.h" -#include "thermal.h" -#include "temp_sensor/thermistor.h" -#include "uart.h" -#include "usb_charge.h" -#include "usb_common.h" -#include "usb_pd.h" -#include "usbc_ppc.h" -#include "util.h" - -#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args) -#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args) - -static void power_monitor(void); -DECLARE_DEFERRED(power_monitor); - -static void ppc_interrupt(enum gpio_signal signal) -{ - if (signal == GPIO_USB_C0_TCPPC_INT_ODL) - sn5s330_interrupt(0); -} - -int ppc_get_alert_status(int port) -{ - return gpio_get_level(GPIO_USB_C0_TCPPC_INT_ODL) == 0; -} - -static void tcpc_alert_event(enum gpio_signal signal) -{ - if (signal == GPIO_USB_C0_TCPC_INT_ODL) - schedule_deferred_pd_interrupt(0); -} - -uint16_t tcpc_get_alert_status(void) -{ - uint16_t status = 0; - int level; - - /* - * Check which port has the ALERT line set and ignore if that TCPC has - * its reset line active. - */ - if (!gpio_get_level(GPIO_USB_C0_TCPC_INT_ODL)) { - level = !!(tcpc_config[USB_PD_PORT_TCPC_0].flags & - TCPC_FLAGS_RESET_ACTIVE_HIGH); - if (gpio_get_level(GPIO_USB_C0_TCPC_RST) != level) - status |= PD_STATUS_TCPC_ALERT_0; - } - - return status; -} - -/* Called when the charge manager has switched to a new port. */ -void board_set_charge_limit(int port, int supplier, int charge_ma, - int max_ma, int charge_mv) -{ - /* Blink alert if insufficient power per system_can_boot_ap(). */ - int insufficient_power = - (charge_ma * charge_mv) < - (CONFIG_CHARGER_MIN_POWER_MW_FOR_POWER_ON * 1000); - led_alert(insufficient_power); -} - -static uint8_t usbc_overcurrent; -static int32_t base_5v_power; - -/* - * Power usage for each port as measured or estimated. - * Units are milliwatts (5v x ma current) - */ -#define PWR_BASE_LOAD (5*1335) -#define PWR_FRONT_HIGH (5*1603) -#define PWR_FRONT_LOW (5*963) -#define PWR_REAR (5*1075) -#define PWR_HDMI (5*562) -#define PWR_C_HIGH (5*3740) -#define PWR_C_LOW (5*2090) -#define PWR_MAX (5*10000) - -/* - * Update the 5V power usage, assuming no throttling, - * and invoke the power monitoring. - */ -static void update_5v_usage(void) -{ - int front_ports = 0; - /* - * Recalculate the 5V load, assuming no throttling. - */ - base_5v_power = PWR_BASE_LOAD; - if (!gpio_get_level(GPIO_USB_A0_OC_ODL)) { - front_ports++; - base_5v_power += PWR_FRONT_LOW; - } - if (!gpio_get_level(GPIO_USB_A1_OC_ODL)) { - front_ports++; - base_5v_power += PWR_FRONT_LOW; - } - /* - * Only 1 front port can run higher power at a time. - */ - if (front_ports > 0) - base_5v_power += PWR_FRONT_HIGH - PWR_FRONT_LOW; - if (!gpio_get_level(GPIO_USB_A2_OC_ODL)) - base_5v_power += PWR_REAR; - if (!gpio_get_level(GPIO_USB_A3_OC_ODL)) - base_5v_power += PWR_REAR; - if (ec_config_get_usb4_present() && !gpio_get_level(GPIO_USB_A4_OC_ODL)) - base_5v_power += PWR_REAR; - if (!gpio_get_level(GPIO_HDMI_CONN0_OC_ODL)) - base_5v_power += PWR_HDMI; - if (!gpio_get_level(GPIO_HDMI_CONN1_OC_ODL)) - base_5v_power += PWR_HDMI; - if (usbc_overcurrent) - base_5v_power += PWR_C_HIGH; - /* - * Invoke the power handler immediately. - */ - hook_call_deferred(&power_monitor_data, 0); -} -DECLARE_DEFERRED(update_5v_usage); -/* - * Start power monitoring after ADCs have been initialised. - */ -DECLARE_HOOK(HOOK_INIT, update_5v_usage, HOOK_PRIO_INIT_ADC + 1); - -static void port_ocp_interrupt(enum gpio_signal signal) -{ - hook_call_deferred(&update_5v_usage_data, 0); -} - -/******************************************************************************/ -/* - * Barrel jack power supply handling - * - * EN_PPVAR_BJ_ADP_L must default active to ensure we can power on when the - * barrel jack is connected, and the USB-C port can bring the EC up fine in - * dead-battery mode. Both the USB-C and barrel jack switches do reverse - * protection, so we're safe to turn one on then the other off- but we should - * only do that if the system is off since it might still brown out. - */ - -/* - * Barrel-jack power adapter ratings. - */ -static const struct { - int voltage; - int current; -} bj_power[] = { - { /* 0 - 65W (also default) */ - .voltage = 19000, - .current = 3420 - }, - { /* 1 - 90W */ - .voltage = 19000, - .current = 4740 - }, -}; - -#define ADP_DEBOUNCE_MS 1000 /* Debounce time for BJ plug/unplug */ -/* Debounced connection state of the barrel jack */ -static int8_t adp_connected = -1; -static void adp_connect_deferred(void) -{ - struct charge_port_info pi = { 0 }; - int connected = !gpio_get_level(GPIO_BJ_ADP_PRESENT_L); - - /* Debounce */ - if (connected == adp_connected) - return; - if (connected) { - unsigned int bj = ec_config_get_bj_power(); - - pi.voltage = bj_power[bj].voltage; - pi.current = bj_power[bj].current; - } - charge_manager_update_charge(CHARGE_SUPPLIER_DEDICATED, - DEDICATED_CHARGE_PORT, &pi); - adp_connected = connected; -} -DECLARE_DEFERRED(adp_connect_deferred); - -/* IRQ for BJ plug/unplug. It shouldn't be called if BJ is the power source. */ -void adp_connect_interrupt(enum gpio_signal signal) -{ - hook_call_deferred(&adp_connect_deferred_data, ADP_DEBOUNCE_MS * MSEC); -} - -static void adp_state_init(void) -{ - /* - * Initialize all charge suppliers to 0. The charge manager waits until - * all ports have reported in before doing anything. - */ - for (int i = 0; i < CHARGE_PORT_COUNT; i++) { - for (int j = 0; j < CHARGE_SUPPLIER_COUNT; j++) - charge_manager_update_charge(j, i, NULL); - } - - /* Report charge state from the barrel jack. */ - adp_connect_deferred(); -} -DECLARE_HOOK(HOOK_INIT, adp_state_init, HOOK_PRIO_CHARGE_MANAGER_INIT + 1); - - -#include "gpio_list.h" /* Must come after other header files. */ - -/******************************************************************************/ -/* SPI devices */ -const struct spi_device_t spi_devices[] = { -}; -const unsigned int spi_devices_used = ARRAY_SIZE(spi_devices); - -/******************************************************************************/ -/* PWM channels. Must be in the exactly same order as in enum pwm_channel. */ -const struct pwm_t pwm_channels[] = { - [PWM_CH_FAN] = { .channel = 5, - .flags = PWM_CONFIG_OPEN_DRAIN, - .freq = 25000}, - [PWM_CH_LED_RED] = { .channel = 0, - .flags = PWM_CONFIG_ACTIVE_LOW | - PWM_CONFIG_DSLEEP, - .freq = 2000 }, - [PWM_CH_LED_GREEN] = { .channel = 2, - .flags = PWM_CONFIG_ACTIVE_LOW | - PWM_CONFIG_DSLEEP, - .freq = 2000 }, -}; - -/******************************************************************************/ -/* USB-C TCPC Configuration */ -const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = { - [USB_PD_PORT_TCPC_0] = { - .bus_type = EC_BUS_TYPE_I2C, - .i2c_info = { - .port = I2C_PORT_TCPC0, - .addr_flags = AN7447_TCPC0_I2C_ADDR_FLAGS, - }, - .drv = &anx7447_tcpm_drv, - .flags = TCPC_FLAGS_RESET_ACTIVE_HIGH, - }, -}; -const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = { - [USB_PD_PORT_TCPC_0] = { - .usb_port = USB_PD_PORT_TCPC_0, - .driver = &anx7447_usb_mux_driver, - .hpd_update = &anx7447_tcpc_update_hpd_status, - }, -}; - -/******************************************************************************/ -/* I2C port map configuration */ -const struct i2c_port_t i2c_ports[] = { - {"ina", I2C_PORT_INA, 400, GPIO_I2C0_SCL, GPIO_I2C0_SDA}, - {"ppc0", I2C_PORT_PPC0, 400, GPIO_I2C1_SCL, GPIO_I2C1_SDA}, - {"tcpc0", I2C_PORT_TCPC0, 400, GPIO_I2C3_SCL, GPIO_I2C3_SDA}, - {"power", I2C_PORT_POWER, 400, GPIO_I2C5_SCL, GPIO_I2C5_SDA}, - {"eeprom", I2C_PORT_EEPROM, 400, GPIO_I2C7_SCL, GPIO_I2C7_SDA}, -}; -const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports); - -const struct adc_t adc_channels[] = { - [ADC_SNS_PP3300] = { - /* - * 4700/5631 voltage divider: can take the value out of range - * for 32-bit signed integers, so truncate to 470/563 yielding - * <0.1% error and a maximum intermediate value of 1623457792, - * which comfortably fits in int32. - */ - .name = "SNS_PP3300", - .input_ch = NPCX_ADC_CH2, - .factor_mul = ADC_MAX_VOLT * 563, - .factor_div = (ADC_READ_MAX + 1) * 470, - }, - [ADC_SNS_PP1050] = { - .name = "SNS_PP1050", - .input_ch = NPCX_ADC_CH7, - .factor_mul = ADC_MAX_VOLT, - .factor_div = ADC_READ_MAX + 1, - }, - [ADC_VBUS] = { /* 5/39 voltage divider */ - .name = "VBUS", - .input_ch = NPCX_ADC_CH4, - .factor_mul = ADC_MAX_VOLT * 39, - .factor_div = (ADC_READ_MAX + 1) * 5, - }, - [ADC_PPVAR_IMON] = { /* 500 mV/A */ - .name = "PPVAR_IMON", - .input_ch = NPCX_ADC_CH9, - .factor_mul = ADC_MAX_VOLT * 2, /* Milliamps */ - .factor_div = ADC_READ_MAX + 1, - }, - [ADC_TEMP_SENSOR_1] = { - .name = "TEMP_SENSOR_1", - .input_ch = NPCX_ADC_CH0, - .factor_mul = ADC_MAX_VOLT, - .factor_div = ADC_READ_MAX + 1, - }, -}; -BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT); - -const struct temp_sensor_t temp_sensors[] = { - [TEMP_SENSOR_CORE] = { - .name = "Core", - .type = TEMP_SENSOR_TYPE_BOARD, - .read = get_temp_3v3_30k9_47k_4050b, - .idx = ADC_TEMP_SENSOR_1, - }, -}; -BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT); - -/******************************************************************************/ -/* Wake up pins */ -const enum gpio_signal hibernate_wake_pins[] = { -}; -const int hibernate_wake_pins_used = ARRAY_SIZE(hibernate_wake_pins); - -/******************************************************************************/ -/* Physical fans. These are logically separate from pwm_channels. */ -const struct fan_conf fan_conf_0 = { - .flags = FAN_USE_RPM_MODE, - .ch = MFT_CH_0, /* Use MFT id to control fan */ - .pgood_gpio = -1, - .enable_gpio = -1, -}; - -const struct fan_rpm fan_rpm_0 = { - .rpm_min = 1900, - .rpm_start = 2400, - .rpm_max = 4300, -}; - -const struct fan_t fans[] = { - [FAN_CH_0] = { .conf = &fan_conf_0, .rpm = &fan_rpm_0, }, -}; -BUILD_ASSERT(ARRAY_SIZE(fans) == FAN_CH_COUNT); - -/******************************************************************************/ -/* MFT channels. These are logically separate from pwm_channels. */ -const struct mft_t mft_channels[] = { - [MFT_CH_0] = {NPCX_MFT_MODULE_2, TCKC_LFCLK, PWM_CH_FAN}, -}; -BUILD_ASSERT(ARRAY_SIZE(mft_channels) == MFT_CH_COUNT); - -/******************************************************************************/ -/* Thermal control; drive fan based on temperature sensors. */ -const static struct ec_thermal_config thermal_a = { - .temp_host = { - [EC_TEMP_THRESH_WARN] = 0, - [EC_TEMP_THRESH_HIGH] = C_TO_K(68), - [EC_TEMP_THRESH_HALT] = C_TO_K(78), - }, - .temp_host_release = { - [EC_TEMP_THRESH_WARN] = 0, - [EC_TEMP_THRESH_HIGH] = C_TO_K(58), - [EC_TEMP_THRESH_HALT] = 0, - }, - .temp_fan_off = C_TO_K(41), - .temp_fan_max = C_TO_K(72), -}; - -const static struct ec_thermal_config thermal_b = { - .temp_host = { - [EC_TEMP_THRESH_WARN] = 0, - [EC_TEMP_THRESH_HIGH] = C_TO_K(78), - [EC_TEMP_THRESH_HALT] = C_TO_K(85), - }, - .temp_host_release = { - [EC_TEMP_THRESH_WARN] = 0, - [EC_TEMP_THRESH_HIGH] = C_TO_K(70), - [EC_TEMP_THRESH_HALT] = 0, - }, -}; - -struct ec_thermal_config thermal_params[] = { - [TEMP_SENSOR_CORE] = thermal_a, -}; -BUILD_ASSERT(ARRAY_SIZE(thermal_params) == TEMP_SENSOR_COUNT); - -/* Power sensors */ -const struct ina3221_t ina3221[] = { - { I2C_PORT_INA, 0x40, { "PP3300_G", "PP5000_A", "PP3300_WLAN" } }, - { I2C_PORT_INA, 0x42, { "PP3300_A", "PP3300_SSD", "PP3300_LAN" } }, - { I2C_PORT_INA, 0x43, { NULL, "PP1200_U", "PP2500_DRAM" } } -}; -const unsigned int ina3221_count = ARRAY_SIZE(ina3221); - -static uint16_t board_version; -static uint32_t sku_id; -static uint32_t fw_config; - -static void cbi_init(void) -{ - /* - * Load board info from CBI to control per-device configuration. - * - * If unset it's safe to treat the board as a proto, just C10 gating - * won't be enabled. - */ - uint32_t val; - - if (cbi_get_board_version(&val) == EC_SUCCESS && val <= UINT16_MAX) - board_version = val; - if (cbi_get_sku_id(&val) == EC_SUCCESS) - sku_id = val; - if (cbi_get_fw_config(&val) == EC_SUCCESS) - fw_config = val; - CPRINTS("Board Version: %d, SKU ID: 0x%08x, F/W config: 0x%08x", - board_version, sku_id, fw_config); -} -DECLARE_HOOK(HOOK_INIT, cbi_init, HOOK_PRIO_INIT_I2C + 1); - -static void board_init(void) -{ - uint8_t *memmap_batt_flags; - - /* Override some GPIO interrupt priorities. - * - * These interrupts are timing-critical for AP power sequencing, so we - * increase their NVIC priority from the default of 3. This affects - * whole MIWU groups of 8 GPIOs since they share an IRQ. - * - * Latency at the default priority level can be hundreds of - * microseconds while other equal-priority IRQs are serviced, so GPIOs - * requiring faster response must be higher priority. - */ - /* CPU_C10_GATE_L on GPIO6.7: must be ~instant for ~60us response. */ - cpu_set_interrupt_priority(NPCX_IRQ_WKINTH_1, 1); - /* - * slp_s3_interrupt (GPIOA.5 on WKINTC_0) must respond within 200us - * (tPLT18); less critical than the C10 gate. - */ - cpu_set_interrupt_priority(NPCX_IRQ_WKINTC_0, 2); - - gpio_enable_interrupt(GPIO_BJ_ADP_PRESENT_L); - - /* Always claim AC is online, because we don't have a battery. */ - memmap_batt_flags = host_get_memmap(EC_MEMMAP_BATT_FLAG); - *memmap_batt_flags |= EC_BATT_FLAG_AC_PRESENT; - /* - * For board version < 2, the directly connected recovery - * button is not available. - */ - if (board_version < 2) - button_disable_gpio(GPIO_EC_RECOVERY_BTN_ODL); -} -DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT); - -static void board_chipset_startup(void) -{ - /* - * Workaround to restore VBUS on PPC. - * PP1 is sourced from PP5000_A, and when the CPU shuts down and - * this rail drops, the PPC will internally turn off PP1_EN. - * When the CPU starts again, and the rail is restored, the PPC - * does not turn PP1_EN on again, causing VBUS to stay turned off. - * The workaround is to check whether the PPC is sourcing VBUS, and - * if so, make sure it is enabled. - */ - if (ppc_is_sourcing_vbus(0)) - ppc_vbus_source_enable(0, 1); -} -DECLARE_HOOK(HOOK_CHIPSET_STARTUP, board_chipset_startup, - HOOK_PRIO_DEFAULT); -/******************************************************************************/ -/* USB-C PPC Configuration */ -struct ppc_config_t ppc_chips[CONFIG_USB_PD_PORT_MAX_COUNT] = { - [USB_PD_PORT_TCPC_0] = { - .i2c_port = I2C_PORT_PPC0, - .i2c_addr_flags = SN5S330_ADDR0_FLAGS, - .drv = &sn5s330_drv - }, -}; -unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips); - -/* USB-A port control */ -const int usb_port_enable[USB_PORT_COUNT] = { - GPIO_EN_PP5000_USB_VBUS, -}; - -/* Power Delivery and charging functions */ -static void board_tcpc_init(void) -{ - /* - * Reset TCPC if we have had a system reset. - * With EFSv2, it is possible to be in RW without - * having reset the TCPC. - */ - if (system_get_reset_flags() & EC_RESET_FLAG_POWER_ON) - board_reset_pd_mcu(); - /* Enable TCPC interrupts. */ - gpio_enable_interrupt(GPIO_USB_C0_TCPPC_INT_ODL); - gpio_enable_interrupt(GPIO_USB_C0_TCPC_INT_ODL); - /* Enable other overcurrent interrupts */ - gpio_enable_interrupt(GPIO_HDMI_CONN0_OC_ODL); - gpio_enable_interrupt(GPIO_HDMI_CONN1_OC_ODL); - gpio_enable_interrupt(GPIO_USB_A0_OC_ODL); - gpio_enable_interrupt(GPIO_USB_A1_OC_ODL); - gpio_enable_interrupt(GPIO_USB_A2_OC_ODL); - gpio_enable_interrupt(GPIO_USB_A3_OC_ODL); - if (ec_config_get_usb4_present()) { - /* - * By default configured as output low. - */ - gpio_set_flags(GPIO_USB_A4_OC_ODL, - GPIO_INPUT | GPIO_INT_BOTH); - gpio_enable_interrupt(GPIO_USB_A4_OC_ODL); - } else { - /* Ensure no interrupts from pin */ - gpio_disable_interrupt(GPIO_USB_A4_OC_ODL); - } - -} -/* Make sure this is called after fw_config is initialised */ -DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_I2C + 2); - -int64_t get_time_dsw_pwrok(void) -{ - /* DSW_PWROK is turned on before EC was powered. */ - return -20 * MSEC; -} - -void board_reset_pd_mcu(void) -{ - int level = !!(tcpc_config[USB_PD_PORT_TCPC_0].flags & - TCPC_FLAGS_RESET_ACTIVE_HIGH); - - gpio_set_level(GPIO_USB_C0_TCPC_RST, level); - msleep(BOARD_TCPC_C0_RESET_HOLD_DELAY); - gpio_set_level(GPIO_USB_C0_TCPC_RST, !level); - if (BOARD_TCPC_C0_RESET_POST_DELAY) - msleep(BOARD_TCPC_C0_RESET_POST_DELAY); -} - -int board_set_active_charge_port(int port) -{ - CPRINTS("Requested charge port change to %d", port); - - /* - * The charge manager may ask us to switch to no charger if we're - * running off USB-C only but upstream doesn't support PD. It requires - * that we accept this switch otherwise it triggers an assert and EC - * reset; it's not possible to boot the AP anyway, but we want to avoid - * resetting the EC so we can continue to do the "low power" LED blink. - */ - if (port == CHARGE_PORT_NONE) - return EC_SUCCESS; - - if (port < 0 || CHARGE_PORT_COUNT <= port) - return EC_ERROR_INVAL; - - if (port == charge_manager_get_active_charge_port()) - return EC_SUCCESS; - - /* Don't charge from a source port */ - if (board_vbus_source_enabled(port)) - return EC_ERROR_INVAL; - - if (!chipset_in_state(CHIPSET_STATE_ANY_OFF)) { - int bj_active, bj_requested; - - if (charge_manager_get_active_charge_port() != CHARGE_PORT_NONE) - /* Change is only permitted while the system is off */ - return EC_ERROR_INVAL; - - /* - * Current setting is no charge port but the AP is on, so the - * charge manager is out of sync (probably because we're - * reinitializing after sysjump). Reject requests that aren't - * in sync with our outputs. - */ - bj_active = !gpio_get_level(GPIO_EN_PPVAR_BJ_ADP_L); - bj_requested = port == CHARGE_PORT_BARRELJACK; - if (bj_active != bj_requested) - return EC_ERROR_INVAL; - } - - CPRINTS("New charger p%d", port); - - switch (port) { - case CHARGE_PORT_TYPEC0: - /* TODO(b/143975429) need to touch the PD controller? */ - gpio_set_level(GPIO_EN_PPVAR_BJ_ADP_L, 1); - break; - case CHARGE_PORT_BARRELJACK: - /* Make sure BJ adapter is sourcing power */ - if (gpio_get_level(GPIO_BJ_ADP_PRESENT_L)) - return EC_ERROR_INVAL; - /* TODO(b/143975429) need to touch the PD controller? */ - gpio_set_level(GPIO_EN_PPVAR_BJ_ADP_L, 0); - break; - default: - return EC_ERROR_INVAL; - } - - return EC_SUCCESS; -} - -void board_overcurrent_event(int port, int is_overcurrented) -{ - /* Check that port number is valid. */ - if ((port < 0) || (port >= CONFIG_USB_PD_PORT_MAX_COUNT)) - return; - usbc_overcurrent = is_overcurrented; - update_5v_usage(); -} - -int extpower_is_present(void) -{ - return adp_connected; -} - -int board_is_c10_gate_enabled(void) -{ - /* - * Puff proto drives EN_PP5000_HDMI from EN_S0_RAILS so we cannot gate - * core rails while in S0 because HDMI should remain powered. - * EN_PP5000_HDMI is a separate EC output on all other boards. - */ - return board_version != 0; -} - -void board_enable_s0_rails(int enable) -{ - /* This output isn't connected on protos; safe to set anyway. */ - gpio_set_level(GPIO_EN_PP5000_HDMI, enable); -} - -unsigned int ec_config_get_bj_power(void) -{ - unsigned int bj = - (fw_config & EC_CFG_BJ_POWER_MASK) >> EC_CFG_BJ_POWER_L; - /* Out of range value defaults to 0 */ - if (bj >= ARRAY_SIZE(bj_power)) - bj = 0; - return bj; -} - -int ec_config_get_usb4_present(void) -{ - return !(fw_config & EC_CFG_NO_USB4_MASK); -} - -unsigned int ec_config_get_thermal_solution(void) -{ - return (fw_config & EC_CFG_THERMAL_MASK) >> EC_CFG_THERMAL_L; -} - -static void setup_thermal(void) -{ - unsigned int table = ec_config_get_thermal_solution(); - /* Configure Fan */ - switch (table) { - /* Default and table0 use single fan */ - case 0: - default: - thermal_params[TEMP_SENSOR_CORE] = thermal_a; - break; - /* Table1 is fanless */ - case 1: - fan_set_count(0); - thermal_params[TEMP_SENSOR_CORE] = thermal_b; - break; - } -} -/* fan_set_count should be called before HOOK_INIT/HOOK_PRIO_DEFAULT */ -DECLARE_HOOK(HOOK_INIT, setup_thermal, HOOK_PRIO_DEFAULT - 1); - -/* - * Power monitoring and management. - * - * The overall goal is to gracefully manage the power demand so that - * the power budgets are met without letting the system fall into - * power deficit (perhaps causing a brownout). - * - * There are 2 power budgets that need to be managed: - * - overall system power as measured on the main power supply rail. - * - 5V power delivered to the USB and HDMI ports. - * - * The actual system power demand is calculated from the VBUS voltage and - * the input current (read from a shunt), averaged over 5 readings. - * The power budget limit is from the charge manager. - * - * The 5V power cannot be read directly. Instead, we rely on overcurrent - * inputs from the USB and HDMI ports to indicate that the port is in use - * (and drawing maximum power). - * - * There are 3 throttles that can be applied (in priority order): - * - * - Type A BC1.2 front port restriction (3W) - * - Type C PD (throttle to 1.5A if sourcing) - * - Turn on PROCHOT, which immediately throttles the CPU. - * - * The first 2 throttles affect both the system power and the 5V rails. - * The third is a last resort to force an immediate CPU throttle to - * reduce the overall power use. - * - * The strategy is to determine what the state of the throttles should be, - * and to then turn throttles off or on as needed to match this. - * - * This function runs on demand, or every 2 ms when the CPU is up, - * and continually monitors the power usage, applying the - * throttles when necessary. - * - * All measurements are in milliwatts. - */ -#define THROT_TYPE_A BIT(0) -#define THROT_TYPE_C BIT(1) -#define THROT_PROCHOT BIT(2) - -/* - * Power gain if front USB A ports are limited. - */ -#define POWER_GAIN_TYPE_A 3200 -/* - * Power gain if Type C port is limited. - */ -#define POWER_GAIN_TYPE_C 8800 -/* - * Power is averaged over 10 ms, with a reading every 2 ms. - */ -#define POWER_DELAY_MS 2 -#define POWER_READINGS (10/POWER_DELAY_MS) - -static void power_monitor(void) -{ - static uint32_t current_state; - static uint32_t history[POWER_READINGS]; - static uint8_t index; - int32_t delay; - uint32_t new_state = 0, diff; - int32_t headroom_5v = PWR_MAX - base_5v_power; - - /* - * If CPU is off or suspended, no need to throttle - * or restrict power. - */ - if (chipset_in_state(CHIPSET_STATE_ANY_OFF | - CHIPSET_STATE_SUSPEND)) { - /* - * Slow down monitoring, assume no throttling required. - */ - delay = 20 * MSEC; - /* - * Clear the first entry of the power table so that - * it is re-initilalised when the CPU starts. - */ - history[0] = 0; - } else { - int32_t charger_mw; - - delay = POWER_DELAY_MS * MSEC; - /* - * Get current charger limit (in mw). - * If not configured yet, skip. - */ - charger_mw = charge_manager_get_power_limit_uw() / 1000; - if (charger_mw != 0) { - int32_t gap, total, max, power; - int i; - - /* - * Read power usage. - */ - power = (adc_read_channel(ADC_VBUS) * - adc_read_channel(ADC_PPVAR_IMON)) / - 1000; - /* Init power table */ - if (history[0] == 0) { - for (i = 0; i < POWER_READINGS; i++) - history[i] = power; - } - /* - * Update the power readings and - * calculate the average and max. - */ - history[index] = power; - index = (index + 1) % POWER_READINGS; - total = 0; - max = history[0]; - for (i = 0; i < POWER_READINGS; i++) { - total += history[i]; - if (history[i] > max) - max = history[i]; - } - /* - * For Type-C power supplies, there is - * less tolerance for exceeding the rating, - * so use the max power that has been measured - * over the measuring period. - * For barrel-jack supplies, the rating can be - * exceeded briefly, so use the average. - */ - if (charge_manager_get_supplier() == - CHARGE_SUPPLIER_PD) - power = max; - else - power = total / POWER_READINGS; - /* - * Calculate gap, and if negative, power - * demand is exceeding configured power budget, so - * throttling is required to reduce the demand. - */ - gap = charger_mw - power; - /* - * Limiting type-A power. - */ - if (gap <= 0) { - new_state |= THROT_TYPE_A; - headroom_5v += PWR_FRONT_HIGH - PWR_FRONT_LOW; - if (!(current_state & THROT_TYPE_A)) - gap += POWER_GAIN_TYPE_A; - } - /* - * If the type-C port is sourcing power, - * check whether it should be throttled. - */ - if (ppc_is_sourcing_vbus(0) && gap <= 0) { - new_state |= THROT_TYPE_C; - headroom_5v += PWR_C_HIGH - PWR_C_LOW; - if (!(current_state & THROT_TYPE_C)) - gap += POWER_GAIN_TYPE_C; - } - /* - * As a last resort, turn on PROCHOT to - * throttle the CPU. - */ - if (gap <= 0) - new_state |= THROT_PROCHOT; - } - } - /* - * Check the 5v power usage and if necessary, - * adjust the throttles in priority order. - * - * Either throttle may have already been activated by - * the overall power control. - * - * We rely on the overcurrent detection to inform us - * if the port is in use. - * - * - If type C not already throttled: - * * If not overcurrent, prefer to limit type C [1]. - * * If in overcurrentuse: - * - limit type A first [2] - * - If necessary, limit type C [3]. - * - If type A not throttled, if necessary limit it [2]. - */ - if (headroom_5v < 0) { - /* - * Check whether type C is not throttled, - * and is not overcurrent. - */ - if (!((new_state & THROT_TYPE_C) || usbc_overcurrent)) { - /* - * [1] Type C not in overcurrent, throttle it. - */ - headroom_5v += PWR_C_HIGH - PWR_C_LOW; - new_state |= THROT_TYPE_C; - } - /* - * [2] If type A not already throttled, and power still - * needed, limit type A. - */ - if (!(new_state & THROT_TYPE_A) && headroom_5v < 0) { - headroom_5v += PWR_FRONT_HIGH - PWR_FRONT_LOW; - new_state |= THROT_TYPE_A; - } - /* - * [3] If still under-budget, limit type C. - * No need to check if it is already throttled or not. - */ - if (headroom_5v < 0) - new_state |= THROT_TYPE_C; - } - /* - * Turn the throttles on or off if they have changed. - */ - diff = new_state ^ current_state; - current_state = new_state; - if (diff & THROT_PROCHOT) { - int prochot = (new_state & THROT_PROCHOT) ? 0 : 1; - - gpio_set_level(GPIO_EC_PROCHOT_ODL, prochot); - } - if (diff & THROT_TYPE_C) { - enum tcpc_rp_value rp = (new_state & THROT_TYPE_C) - ? TYPEC_RP_1A5 : TYPEC_RP_3A0; - - ppc_set_vbus_source_current_limit(0, rp); - tcpm_select_rp_value(0, rp); - pd_update_contract(0); - } - if (diff & THROT_TYPE_A) { - int typea_bc = (new_state & THROT_TYPE_A) ? 1 : 0; - - gpio_set_level(GPIO_USB_A_LOW_PWR_OD, typea_bc); - } - hook_call_deferred(&power_monitor_data, delay); -} |