| /* Copyright 2020 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. |
| */ |
| |
| /* Pompom board-specific configuration */ |
| |
| #include "adc_chip.h" |
| #include "button.h" |
| #include "charge_manager.h" |
| #include "charge_state.h" |
| #include "extpower.h" |
| #include "driver/accel_bma2x2.h" |
| #include "driver/accelgyro_bmi_common.h" |
| #include "driver/ppc/sn5s330.h" |
| #include "driver/tcpm/ps8xxx.h" |
| #include "driver/tcpm/tcpci.h" |
| #include "gpio.h" |
| #include "hooks.h" |
| #include "keyboard_scan.h" |
| #include "lid_switch.h" |
| #include "pi3usb9201.h" |
| #include "power.h" |
| #include "power_button.h" |
| #include "pwm.h" |
| #include "pwm_chip.h" |
| #include "system.h" |
| #include "shi_chip.h" |
| #include "switch.h" |
| #include "tablet_mode.h" |
| #include "task.h" |
| #include "usbc_ppc.h" |
| |
| #define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args) |
| #define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args) |
| |
| /* Forward declaration */ |
| static void tcpc_alert_event(enum gpio_signal signal); |
| static void usb0_evt(enum gpio_signal signal); |
| static void ppc_interrupt(enum gpio_signal signal); |
| static void board_connect_c0_sbu(enum gpio_signal s); |
| |
| #include "gpio_list.h" |
| |
| /* GPIO Interrupt Handlers */ |
| static void tcpc_alert_event(enum gpio_signal signal) |
| { |
| int port = -1; |
| |
| switch (signal) { |
| case GPIO_USB_C0_PD_INT_ODL: |
| port = 0; |
| break; |
| default: |
| return; |
| } |
| |
| schedule_deferred_pd_interrupt(port); |
| } |
| |
| static void usb0_evt(enum gpio_signal signal) |
| { |
| task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12, 0); |
| } |
| |
| static void ppc_interrupt(enum gpio_signal signal) |
| { |
| switch (signal) { |
| case GPIO_USB_C0_SWCTL_INT_ODL: |
| sn5s330_interrupt(0); |
| 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); |
| |
| static void board_connect_c0_sbu(enum gpio_signal s) |
| { |
| hook_call_deferred(&board_connect_c0_sbu_deferred_data, 0); |
| } |
| |
| /* Keyboard scan setting */ |
| struct keyboard_scan_config keyscan_config = { |
| /* Use 80 us, because KSO_02 passes through the H1. */ |
| .output_settle_us = 80, |
| /* |
| * Unmask 0x01 in [1] (KSO_01/KSI_00, the old location of Search key); |
| * as it uses the new location (KSO_00/KSI_03). And T11 key, which maps |
| * to KSO_01/KSI_00, is not there. |
| */ |
| .actual_key_mask = { |
| 0x1c, 0xfe, 0xff, 0xff, 0xff, 0xf5, 0xff, |
| 0xa4, 0xff, 0xfe, 0x55, 0xfa, 0xca |
| }, |
| /* Other values should be the same as the default configuration. */ |
| .debounce_down_us = 9 * MSEC, |
| .debounce_up_us = 30 * MSEC, |
| .scan_period_us = 3 * MSEC, |
| .min_post_scan_delay_us = 1000, |
| .poll_timeout_us = 100 * MSEC, |
| }; |
| |
| /* I2C port map */ |
| const struct i2c_port_t i2c_ports[] = { |
| {"power", I2C_PORT_POWER, 100, GPIO_EC_I2C_POWER_SCL, |
| GPIO_EC_I2C_POWER_SDA}, |
| {"tcpc0", I2C_PORT_TCPC0, 1000, GPIO_EC_I2C_USB_C0_PD_SCL, |
| GPIO_EC_I2C_USB_C0_PD_SDA}, |
| {"eeprom", I2C_PORT_EEPROM, 400, GPIO_EC_I2C_EEPROM_SCL, |
| GPIO_EC_I2C_EEPROM_SDA}, |
| {"sensor", I2C_PORT_SENSOR, 400, GPIO_EC_I2C_SENSOR_SCL, |
| GPIO_EC_I2C_SENSOR_SDA}, |
| }; |
| |
| const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports); |
| |
| /* ADC channels */ |
| const struct adc_t adc_channels[] = { |
| /* Measure VBUS through a 1/10 voltage divider */ |
| [ADC_VBUS] = { |
| "VBUS", |
| NPCX_ADC_CH1, |
| ADC_MAX_VOLT * 10, |
| ADC_READ_MAX + 1, |
| 0 |
| }, |
| /* |
| * Adapter current output or battery charging/discharging current (uV) |
| * 18x amplification on charger side. |
| */ |
| [ADC_AMON_BMON] = { |
| "AMON_BMON", |
| NPCX_ADC_CH2, |
| ADC_MAX_VOLT * 1000 / 18, |
| ADC_READ_MAX + 1, |
| 0 |
| }, |
| /* |
| * ISL9238 PSYS output is 1.44 uA/W over 5.6K resistor, to read |
| * 0.8V @ 99 W, i.e. 124000 uW/mV. Using ADC_MAX_VOLT*124000 and |
| * ADC_READ_MAX+1 as multiplier/divider leads to overflows, so we |
| * only divide by 2 (enough to avoid precision issues). |
| */ |
| [ADC_PSYS] = { |
| "PSYS", |
| NPCX_ADC_CH3, |
| ADC_MAX_VOLT * 124000 * 2 / (ADC_READ_MAX + 1), |
| 2, |
| 0 |
| }, |
| }; |
| BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT); |
| |
| const struct pwm_t pwm_channels[] = { |
| [PWM_CH_KBLIGHT] = { .channel = 3, .flags = 0, .freq = 10000 }, |
| /* TODO(waihong): Assign a proper frequency. */ |
| [PWM_CH_DISPLIGHT] = { .channel = 5, .flags = 0, .freq = 4800 }, |
| }; |
| BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT); |
| |
| /* Power Path Controller */ |
| struct ppc_config_t ppc_chips[] = { |
| { |
| .i2c_port = I2C_PORT_TCPC0, |
| .i2c_addr_flags = SN5S330_ADDR0_FLAGS, |
| .drv = &sn5s330_drv |
| }, |
| }; |
| unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips); |
| |
| /* TCPC mux configuration */ |
| const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = { |
| { |
| .bus_type = EC_BUS_TYPE_I2C, |
| .i2c_info = { |
| .port = I2C_PORT_TCPC0, |
| .addr_flags = PS8751_I2C_ADDR1_FLAGS, |
| }, |
| .drv = &ps8xxx_tcpm_drv, |
| }, |
| }; |
| |
| /* |
| * 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, |
| }, |
| }; |
| |
| const int usb_port_enable[USB_PORT_COUNT] = { |
| GPIO_EN_USB_A_5V, |
| }; |
| |
| /* BC1.2 */ |
| const struct pi3usb9201_config_t pi3usb9201_bc12_chips[] = { |
| { |
| .i2c_port = I2C_PORT_POWER, |
| .i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS, |
| }, |
| { |
| .i2c_port = I2C_PORT_EEPROM, |
| .i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS, |
| }, |
| }; |
| |
| /* Initialize board. */ |
| static void board_init(void) |
| { |
| /* Enable BC1.2 interrupts */ |
| gpio_enable_interrupt(GPIO_USB_C0_BC12_INT_L); |
| |
| /* Enable interrupt for BMI160 sensor */ |
| gpio_enable_interrupt(GPIO_ACCEL_GYRO_INT_L); |
| |
| /* |
| * 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_interrupt(GPIO_CCD_MODE_ODL); |
| |
| /* Set the backlight duty cycle to 0. AP will override it later. */ |
| pwm_set_duty(PWM_CH_DISPLIGHT, 0); |
| } |
| DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT); |
| |
| void board_hibernate(void) |
| { |
| int i; |
| |
| /* |
| * Board rev 2+ has the hardware fix. Don't need the following |
| * workaround. |
| */ |
| if (system_get_board_version() >= 2) |
| return; |
| |
| /* |
| * Enable the PPC power sink path before EC enters hibernate; |
| * otherwise, ACOK won't go High and can't wake EC up. Check the |
| * bug b/170324206 for details. |
| */ |
| for (i = 0; i < CONFIG_USB_PD_PORT_MAX_COUNT; i++) |
| ppc_vbus_sink_enable(i, 1); |
| } |
| |
| __override uint16_t board_get_ps8xxx_product_id(int port) |
| { |
| /* Pompom rev 1+ changes TCPC from PS8751 to PS8805 */ |
| if (system_get_board_version() == 0) |
| return PS8751_PRODUCT_ID; |
| |
| return PS8805_PRODUCT_ID; |
| } |
| |
| 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_interrupt(GPIO_USB_C0_SWCTL_INT_ODL); |
| |
| /* Enable TCPC interrupts */ |
| gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL); |
| |
| /* |
| * 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, 0, 0); |
| } |
| DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_I2C+1); |
| |
| /* Called on AP S0 -> S3 transition */ |
| static void board_chipset_suspend(void) |
| { |
| /* |
| * Turn off display backlight in S3. AP has its own control. The EC's |
| * and the AP's will be AND'ed together in hardware. |
| */ |
| gpio_set_level(GPIO_ENABLE_BACKLIGHT, 0); |
| pwm_enable(PWM_CH_DISPLIGHT, 0); |
| } |
| DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT); |
| |
| /* Called on AP S3 -> S0 transition */ |
| static void board_chipset_resume(void) |
| { |
| /* Turn on display and keyboard backlight in S0. */ |
| gpio_set_level(GPIO_ENABLE_BACKLIGHT, 1); |
| if (pwm_get_duty(PWM_CH_DISPLIGHT)) |
| pwm_enable(PWM_CH_DISPLIGHT, 1); |
| } |
| DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT); |
| |
| void board_set_switchcap_power(int enable) |
| { |
| gpio_set_level(GPIO_SWITCHCAP_ON, enable); |
| } |
| |
| int board_is_switchcap_enabled(void) |
| { |
| return gpio_get_level(GPIO_SWITCHCAP_ON); |
| } |
| |
| int board_is_switchcap_power_good(void) |
| { |
| return gpio_get_level(GPIO_DA9313_GPIO0); |
| } |
| |
| void board_reset_pd_mcu(void) |
| { |
| cprints(CC_USB, "Resetting TCPCs..."); |
| cflush(); |
| |
| gpio_set_level(GPIO_USB_C0_PD_RST_L, 0); |
| msleep(PS8XXX_RESET_DELAY_MS); |
| gpio_set_level(GPIO_USB_C0_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_get_level(GPIO_USB_C0_PD_INT_ODL)) |
| if (gpio_get_level(GPIO_USB_C0_PD_RST_L)) |
| status |= PD_STATUS_TCPC_ALERT_0; |
| |
| return status; |
| } |
| |
| /* Mutexes */ |
| static struct mutex g_base_mutex; |
| static struct mutex g_lid_mutex; |
| |
| static struct bmi_drv_data_t g_bmi160_data; |
| static struct accelgyro_saved_data_t g_bma255_data; |
| |
| /* Matrix to rotate accelerometer into standard reference frame */ |
| const mat33_fp_t base_standard_ref = { |
| { FLOAT_TO_FP(1), 0, 0}, |
| { 0, FLOAT_TO_FP(1), 0}, |
| { 0, 0, FLOAT_TO_FP(1)} |
| }; |
| |
| static const mat33_fp_t lid_standard_ref = { |
| { 0, FLOAT_TO_FP(1), 0}, |
| { FLOAT_TO_FP(-1), 0, 0}, |
| { 0, 0, FLOAT_TO_FP(1)} |
| }; |
| |
| struct motion_sensor_t motion_sensors[] = { |
| [LID_ACCEL] = { |
| .name = "Lid Accel", |
| .active_mask = SENSOR_ACTIVE_S0_S3, |
| .chip = MOTIONSENSE_CHIP_BMA255, |
| .type = MOTIONSENSE_TYPE_ACCEL, |
| .location = MOTIONSENSE_LOC_LID, |
| .drv = &bma2x2_accel_drv, |
| .mutex = &g_lid_mutex, |
| .drv_data = &g_bma255_data, |
| .port = I2C_PORT_SENSOR, |
| .i2c_spi_addr_flags = BMA2x2_I2C_ADDR1_FLAGS, |
| .rot_standard_ref = &lid_standard_ref, |
| .default_range = 2, /* g, to support lid angle calculation. */ |
| .min_frequency = BMA255_ACCEL_MIN_FREQ, |
| .max_frequency = BMA255_ACCEL_MAX_FREQ, |
| .config = { |
| /* EC use accel for angle detection */ |
| [SENSOR_CONFIG_EC_S0] = { |
| .odr = 10000 | ROUND_UP_FLAG, |
| }, |
| /* Sensor on for lid angle detection */ |
| [SENSOR_CONFIG_EC_S3] = { |
| .odr = 10000 | ROUND_UP_FLAG, |
| }, |
| }, |
| }, |
| /* |
| * Note: bmi160: supports accelerometer and gyro sensor |
| * Requirement: accelerometer sensor must init before gyro sensor |
| * DO NOT change the order of the following table. |
| */ |
| [BASE_ACCEL] = { |
| .name = "Base Accel", |
| .active_mask = SENSOR_ACTIVE_S0_S3_S5, |
| .chip = MOTIONSENSE_CHIP_BMI160, |
| .type = MOTIONSENSE_TYPE_ACCEL, |
| .location = MOTIONSENSE_LOC_BASE, |
| .drv = &bmi160_drv, |
| .mutex = &g_base_mutex, |
| .drv_data = &g_bmi160_data, |
| .port = I2C_PORT_SENSOR, |
| .i2c_spi_addr_flags = BMI160_ADDR0_FLAGS, |
| .rot_standard_ref = &base_standard_ref, |
| .default_range = 4, /* g, to meet CDD 7.3.1/C-1-4 reqs */ |
| .min_frequency = BMI_ACCEL_MIN_FREQ, |
| .max_frequency = BMI_ACCEL_MAX_FREQ, |
| .config = { |
| [SENSOR_CONFIG_EC_S0] = { |
| .odr = 10000 | ROUND_UP_FLAG, |
| }, |
| /* Sensor on for lid angle detection */ |
| [SENSOR_CONFIG_EC_S3] = { |
| .odr = 10000 | ROUND_UP_FLAG, |
| }, |
| }, |
| }, |
| [BASE_GYRO] = { |
| .name = "Gyro", |
| .active_mask = SENSOR_ACTIVE_S0_S3_S5, |
| .chip = MOTIONSENSE_CHIP_BMI160, |
| .type = MOTIONSENSE_TYPE_GYRO, |
| .location = MOTIONSENSE_LOC_BASE, |
| .drv = &bmi160_drv, |
| .mutex = &g_base_mutex, |
| .drv_data = &g_bmi160_data, |
| .port = I2C_PORT_SENSOR, |
| .i2c_spi_addr_flags = BMI160_ADDR0_FLAGS, |
| .default_range = 1000, /* dps */ |
| .rot_standard_ref = &base_standard_ref, |
| .min_frequency = BMI_GYRO_MIN_FREQ, |
| .max_frequency = BMI_GYRO_MAX_FREQ, |
| }, |
| }; |
| const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors); |
| |
| #ifndef TEST_BUILD |
| /* This callback disables keyboard when convertibles are fully open */ |
| void lid_angle_peripheral_enable(int enable) |
| { |
| int chipset_in_s0 = chipset_in_state(CHIPSET_STATE_ON); |
| |
| if (enable) { |
| keyboard_scan_enable(1, KB_SCAN_DISABLE_LID_ANGLE); |
| } else { |
| /* |
| * Ensure that the chipset is off before disabling the keyboard. |
| * When the chipset is on, the EC keeps the keyboard enabled and |
| * the AP decides whether to ignore input devices or not. |
| */ |
| if (!chipset_in_s0) |
| keyboard_scan_enable(0, KB_SCAN_DISABLE_LID_ANGLE); |
| } |
| } |
| #endif |