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Diffstat (limited to 'board/drawcia/board.c')
| -rw-r--r-- | board/drawcia/board.c | 537 |
1 files changed, 537 insertions, 0 deletions
diff --git a/board/drawcia/board.c b/board/drawcia/board.c new file mode 100644 index 0000000000..5730749735 --- /dev/null +++ b/board/drawcia/board.c @@ -0,0 +1,537 @@ +/* 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. + */ + +/* Waddledee board-specific configuration */ + +#include "button.h" +#include "charge_manager.h" +#include "charge_state_v2.h" +#include "charger.h" +#include "driver/accel_lis2dh.h" +#include "driver/accelgyro_lsm6dsm.h" +#include "driver/bc12/pi3usb9201.h" +#include "driver/charger/sm5803.h" +#include "driver/sync.h" +#include "driver/retimer/tusb544.h" +#include "driver/temp_sensor/thermistor.h" +#include "driver/tcpm/anx7447.h" +#include "driver/tcpm/it83xx_pd.h" +#include "driver/usb_mux/it5205.h" +#include "gpio.h" +#include "hooks.h" +#include "intc.h" +#include "keyboard_scan.h" +#include "lid_switch.h" +#include "power.h" +#include "power_button.h" +#include "pwm.h" +#include "pwm_chip.h" +#include "switch.h" +#include "system.h" +#include "tablet_mode.h" +#include "task.h" +#include "tcpci.h" +#include "temp_sensor.h" +#include "uart.h" +#include "usb_charge.h" +#include "usb_mux.h" +#include "usb_pd.h" +#include "usb_pd_tcpm.h" + +#define CPRINTUSB(format, args...) cprints(CC_USBCHARGE, format, ## args) + +#define INT_RECHECK_US 5000 + +/* C1 interrupt line swapped between board versions, track it in a variable */ +static enum gpio_signal c1_int_line; + +/* C0 interrupt line shared by BC 1.2 and charger */ +static void check_c0_line(void); +DECLARE_DEFERRED(check_c0_line); + +static void notify_c0_chips(void) +{ + task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12, 0); + sm5803_interrupt(0); +} + +static void check_c0_line(void) +{ + /* + * If line is still being held low, see if there's more to process from + * one of the chips + */ + if (!gpio_get_level(GPIO_USB_C0_INT_ODL)) { + notify_c0_chips(); + hook_call_deferred(&check_c0_line_data, INT_RECHECK_US); + } +} + +static void usb_c0_interrupt(enum gpio_signal s) +{ + /* Cancel any previous calls to check the interrupt line */ + hook_call_deferred(&check_c0_line_data, -1); + + /* Notify all chips using this line that an interrupt came in */ + notify_c0_chips(); + + /* Check the line again in 5ms */ + hook_call_deferred(&check_c0_line_data, INT_RECHECK_US); +} + +/* C1 interrupt line shared by BC 1.2, TCPC, and charger */ +static void check_c1_line(void); +DECLARE_DEFERRED(check_c1_line); + +static void notify_c1_chips(void) +{ + schedule_deferred_pd_interrupt(1); + task_set_event(TASK_ID_USB_CHG_P1, USB_CHG_EVENT_BC12, 0); + sm5803_interrupt(1); +} + +static void check_c1_line(void) +{ + /* + * If line is still being held low, see if there's more to process from + * one of the chips. + */ + if (!gpio_get_level(c1_int_line)) { + notify_c1_chips(); + hook_call_deferred(&check_c1_line_data, INT_RECHECK_US); + } +} + +static void usb_c1_interrupt(enum gpio_signal s) +{ + /* Cancel any previous calls to check the interrupt line */ + hook_call_deferred(&check_c1_line_data, -1); + + /* Notify all chips using this line that an interrupt came in */ + notify_c1_chips(); + + /* Check the line again in 5ms */ + hook_call_deferred(&check_c1_line_data, INT_RECHECK_US); +} + +static void c0_ccsbu_ovp_interrupt(enum gpio_signal s) +{ + cprints(CC_USBPD, "C0: CC OVP, SBU OVP, or thermal event"); + pd_handle_cc_overvoltage(0); +} + +/* Must come after other header files and interrupt handler declarations */ +#include "gpio_list.h" + +/* BC 1.2 chips */ +const struct pi3usb9201_config_t pi3usb9201_bc12_chips[] = { + { + .i2c_port = I2C_PORT_USB_C0, + .i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS, + .flags = PI3USB9201_ALWAYS_POWERED, + }, + { + .i2c_port = I2C_PORT_SUB_USB_C1, + .i2c_addr_flags = PI3USB9201_I2C_ADDR_3_FLAGS, + .flags = PI3USB9201_ALWAYS_POWERED, + }, +}; + +/* Charger chips */ +const struct charger_config_t chg_chips[] = { + [CHARGER_PRIMARY] = { + .i2c_port = I2C_PORT_USB_C0, + .i2c_addr_flags = SM5803_ADDR_CHARGER_FLAGS, + .drv = &sm5803_drv, + }, + [CHARGER_SECONDARY] = { + .i2c_port = I2C_PORT_SUB_USB_C1, + .i2c_addr_flags = SM5803_ADDR_CHARGER_FLAGS, + .drv = &sm5803_drv, + }, +}; +const unsigned int chg_cnt = ARRAY_SIZE(chg_chips); + +/* TCPCs */ +const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_MAX_COUNT] = { + { + .bus_type = EC_BUS_TYPE_EMBEDDED, + .drv = &it83xx_tcpm_drv, + }, + { + .bus_type = EC_BUS_TYPE_I2C, + .i2c_info = { + .port = I2C_PORT_SUB_USB_C1, + .addr_flags = AN7447_TCPC0_I2C_ADDR_FLAGS, + }, + .drv = &anx7447_tcpm_drv, + .flags = TCPC_FLAGS_TCPCI_REV2_0, + }, +}; + +/* USB Retimer */ +const struct usb_mux usbc1_retimer = { + .usb_port = 1, + .i2c_port = I2C_PORT_SUB_USB_C1, + .i2c_addr_flags = TUSB544_I2C_ADDR_FLAGS0, + .driver = &tusb544_drv, +}; + +/* USB Muxes */ +const struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_MAX_COUNT] = { + { + .usb_port = 0, + .i2c_port = I2C_PORT_USB_C0, + .i2c_addr_flags = IT5205_I2C_ADDR1_FLAGS, + .driver = &it5205_usb_mux_driver, + }, + { + .usb_port = 1, + .i2c_port = I2C_PORT_SUB_USB_C1, + .i2c_addr_flags = AN7447_TCPC0_I2C_ADDR_FLAGS, + .driver = &anx7447_usb_mux_driver, + .next_mux = &usbc1_retimer, + }, +}; + +void board_init(void) +{ + int on; + + if (system_get_board_version() <= 0) { + pd_set_max_voltage(5000); + c1_int_line = GPIO_USB_C1_INT_V0_ODL; + } else { + c1_int_line = GPIO_USB_C1_INT_V1_ODL; + } + + + gpio_enable_interrupt(GPIO_USB_C0_INT_ODL); + gpio_enable_interrupt(c1_int_line); + gpio_enable_interrupt(GPIO_USB_C0_CCSBU_OVP_ODL); + + /* Charger on the MB will be outputting PROCHOT_ODL and OD CHG_DET */ + sm5803_configure_gpio0(CHARGER_PRIMARY, GPIO0_MODE_PROCHOT, 1); + sm5803_configure_chg_det_od(CHARGER_PRIMARY, 1); + + /* Charger on the sub-board will be a push-pull GPIO */ + sm5803_configure_gpio0(CHARGER_SECONDARY, GPIO0_MODE_OUTPUT, 0); + + /* Turn on 5V if the system is on, otherwise turn it off */ + on = chipset_in_state(CHIPSET_STATE_ON | CHIPSET_STATE_ANY_SUSPEND); + board_power_5v_enable(on); +} +DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT); + +void board_reset_pd_mcu(void) +{ + /* + * Nothing to do. TCPC C0 is internal, TCPC C1 reset pin is not + * connected to the EC. + */ +} + +__override void board_power_5v_enable(int enable) +{ + /* + * Motherboard has a GPIO to turn on the 5V regulator, but the sub-board + * sets it through the charger GPIO. + */ + gpio_set_level(GPIO_EN_PP5000, !!enable); + if (sm5803_set_gpio0_level(1, !!enable)) + CPRINTUSB("Failed to %sable sub rails!", enable ? "en" : "dis"); +} + +uint16_t tcpc_get_alert_status(void) +{ + /* + * TCPC 0 is embedded in the EC and processes interrupts in the chip + * code (it83xx/intc.c) + */ + + uint16_t status = 0; + int regval; + + /* Check whether TCPC 1 pulled the shared interrupt line */ + if (!gpio_get_level(c1_int_line)) { + if (!tcpc_read16(1, TCPC_REG_ALERT, ®val)) { + if (regval) + status = PD_STATUS_TCPC_ALERT_1; + } + } + + return status; +} + +int extpower_is_present(void) +{ + int chg0 = 0; + int chg1 = 0; + + sm5803_get_chg_det(0, &chg0); + sm5803_get_chg_det(1, &chg1); + + return chg0 || chg1; +} + +void board_set_charge_limit(int port, int supplier, int charge_ma, int max_ma, + int charge_mv) +{ + int icl = MAX(charge_ma, CONFIG_CHARGER_INPUT_CURRENT); + + /* + * TODO(b/151955431): Characterize the input current limit in case a + * scaling needs to be applied here + */ + charge_set_input_current_limit(icl, charge_mv); +} + +int board_set_active_charge_port(int port) +{ + int is_valid_port = (port >= 0 && port < CONFIG_USB_PD_PORT_MAX_COUNT); + int p0_otg, p1_otg; + + if (!is_valid_port && port != CHARGE_PORT_NONE) + return EC_ERROR_INVAL; + + /* TODO(b/147440290): charger functions should take chgnum */ + p0_otg = chg_chips[0].drv->is_sourcing_otg_power(0, 0); + p1_otg = chg_chips[1].drv->is_sourcing_otg_power(1, 1); + + if (port == CHARGE_PORT_NONE) { + CPRINTUSB("Disabling all charge ports"); + + if (!p0_otg) + chg_chips[0].drv->set_mode(0, + CHARGE_FLAG_INHIBIT_CHARGE); + if (!p1_otg) + chg_chips[1].drv->set_mode(1, + CHARGE_FLAG_INHIBIT_CHARGE); + + return EC_SUCCESS; + } + + CPRINTUSB("New chg p%d", port); + + /* + * Charger task will take care of enabling charging on the new charge + * port. Here, we ensure the other port is not charging by changing + * CHG_EN + */ + if (port == 0) { + if (p0_otg) { + CPRINTUSB("Skip enable p%d", port); + return EC_ERROR_INVAL; + } + if (!p1_otg) { + chg_chips[1].drv->set_mode(1, + CHARGE_FLAG_INHIBIT_CHARGE); + } + } else { + if (p1_otg) { + CPRINTUSB("Skip enable p%d", port); + return EC_ERROR_INVAL; + } + if (!p0_otg) { + chg_chips[0].drv->set_mode(0, + CHARGE_FLAG_INHIBIT_CHARGE); + } + } + + return EC_SUCCESS; +} + +/* Vconn control for integrated ITE TCPC */ +void board_pd_vconn_ctrl(int port, enum usbpd_cc_pin cc_pin, int enabled) +{ + /* Vconn control is only for port 0 */ + if (port) + return; + + if (cc_pin == USBPD_CC_PIN_1) + gpio_set_level(GPIO_EN_USB_C0_CC1_VCONN, !!enabled); + else + gpio_set_level(GPIO_EN_USB_C0_CC2_VCONN, !!enabled); +} + +__override void typec_set_source_current_limit(int port, enum tcpc_rp_value rp) +{ + int current; + + if (port < 0 || port > CONFIG_USB_PD_PORT_MAX_COUNT) + return; + + current = (rp == TYPEC_RP_3A0) ? 3000 : 1500; + + chg_chips[port].drv->set_otg_current_voltage(port, current, 5000); +} + +/* PWM channels. Must be in the exactly same order as in enum pwm_channel. */ +const struct pwm_t pwm_channels[] = { + [PWM_CH_KBLIGHT] = { + .channel = 0, + .flags = PWM_CONFIG_DSLEEP, + .freq_hz = 10000, + }, + + [PWM_CH_LED_RED] = { + .channel = 1, + .flags = PWM_CONFIG_DSLEEP | PWM_CONFIG_ACTIVE_LOW, + .freq_hz = 2400, + }, + + [PWM_CH_LED_GREEN] = { + .channel = 2, + .flags = PWM_CONFIG_DSLEEP | PWM_CONFIG_ACTIVE_LOW, + .freq_hz = 2400, + }, + + [PWM_CH_LED_BLUE] = { + .channel = 3, + .flags = PWM_CONFIG_DSLEEP | PWM_CONFIG_ACTIVE_LOW, + .freq_hz = 2400, + } + +}; +BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT); + +/* Sensor Mutexes */ +static struct mutex g_lid_mutex; +static struct mutex g_base_mutex; + +/* Sensor Data */ +static struct stprivate_data g_lis2dh_data; +static struct lsm6dsm_data lsm6dsm_data = LSM6DSM_DATA; + +/* Drivers */ +struct motion_sensor_t motion_sensors[] = { + [LID_ACCEL] = { + .name = "Lid Accel", + .active_mask = SENSOR_ACTIVE_S0_S3, + .chip = MOTIONSENSE_CHIP_LIS2DE, + .type = MOTIONSENSE_TYPE_ACCEL, + .location = MOTIONSENSE_LOC_LID, + .drv = &lis2dh_drv, + .mutex = &g_lid_mutex, + .drv_data = &g_lis2dh_data, + .port = I2C_PORT_SENSOR, + .i2c_spi_addr_flags = LIS2DH_ADDR1_FLAGS, + .rot_standard_ref = NULL, + .default_range = 2, /* g */ + /* We only use 2g because its resolution is only 8-bits */ + .min_frequency = LIS2DH_ODR_MIN_VAL, + .max_frequency = LIS2DH_ODR_MAX_VAL, + .config = { + [SENSOR_CONFIG_EC_S0] = { + .odr = 10000 | ROUND_UP_FLAG, + }, + [SENSOR_CONFIG_EC_S3] = { + .odr = 10000 | ROUND_UP_FLAG, + }, + }, + }, + [BASE_ACCEL] = { + .name = "Base Accel", + .active_mask = SENSOR_ACTIVE_S0_S3, + .chip = MOTIONSENSE_CHIP_LSM6DSM, + .type = MOTIONSENSE_TYPE_ACCEL, + .location = MOTIONSENSE_LOC_BASE, + .drv = &lsm6dsm_drv, + .mutex = &g_base_mutex, + .drv_data = LSM6DSM_ST_DATA(lsm6dsm_data, + MOTIONSENSE_TYPE_ACCEL), + .int_signal = GPIO_BASE_SIXAXIS_INT_L, + .flags = MOTIONSENSE_FLAG_INT_SIGNAL, + .port = I2C_PORT_SENSOR, + .i2c_spi_addr_flags = LSM6DSM_ADDR0_FLAGS, + .rot_standard_ref = NULL, + .default_range = 4, /* g */ + .min_frequency = LSM6DSM_ODR_MIN_VAL, + .max_frequency = LSM6DSM_ODR_MAX_VAL, + .config = { + [SENSOR_CONFIG_EC_S0] = { + .odr = 13000 | ROUND_UP_FLAG, + .ec_rate = 100 * MSEC, + }, + [SENSOR_CONFIG_EC_S3] = { + .odr = 10000 | ROUND_UP_FLAG, + .ec_rate = 100 * MSEC, + }, + }, + }, + [BASE_GYRO] = { + .name = "Base Gyro", + .active_mask = SENSOR_ACTIVE_S0_S3, + .chip = MOTIONSENSE_CHIP_LSM6DSM, + .type = MOTIONSENSE_TYPE_GYRO, + .location = MOTIONSENSE_LOC_BASE, + .drv = &lsm6dsm_drv, + .mutex = &g_base_mutex, + .drv_data = LSM6DSM_ST_DATA(lsm6dsm_data, + MOTIONSENSE_TYPE_GYRO), + .int_signal = GPIO_BASE_SIXAXIS_INT_L, + .flags = MOTIONSENSE_FLAG_INT_SIGNAL, + .port = I2C_PORT_SENSOR, + .i2c_spi_addr_flags = LSM6DSM_ADDR0_FLAGS, + .default_range = 1000 | ROUND_UP_FLAG, /* dps */ + .rot_standard_ref = NULL, + .min_frequency = LSM6DSM_ODR_MIN_VAL, + .max_frequency = LSM6DSM_ODR_MAX_VAL, + }, + [VSYNC] = { + .name = "Camera VSYNC", + .active_mask = SENSOR_ACTIVE_S0, + .chip = MOTIONSENSE_CHIP_GPIO, + .type = MOTIONSENSE_TYPE_SYNC, + .location = MOTIONSENSE_LOC_CAMERA, + .drv = &sync_drv, + .default_range = 0, + .min_frequency = 0, + .max_frequency = 1, + }, +}; + +const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors); + +/* Thermistors */ +const struct temp_sensor_t temp_sensors[] = { + [TEMP_SENSOR_1] = {.name = "Memory", + .type = TEMP_SENSOR_TYPE_BOARD, + .read = get_temp_3v3_51k1_47k_4050b, + .idx = ADC_TEMP_SENSOR_1}, + [TEMP_SENSOR_2] = {.name = "Ambient", + .type = TEMP_SENSOR_TYPE_BOARD, + .read = get_temp_3v3_51k1_47k_4050b, + .idx = ADC_TEMP_SENSOR_2}, +}; +BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT); + +#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 the lid is in tablet position via other sensors, + * ignore the lid angle, which might be faulty then + * disable keyboard. + */ + if (tablet_get_mode()) + enable = 0; + + 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 |