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|
/* 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.
*/
/* Drawcia board-specific configuration */
#include "adc_chip.h"
#include "button.h"
#include "cbi_fw_config.h"
#include "charge_manager.h"
#include "charge_state_v2.h"
#include "charger.h"
#include "cros_board_info.h"
#include "driver/accel_bma2x2.h"
#include "driver/accelgyro_lsm6dsm.h"
#include "driver/bc12/pi3usb9201.h"
#include "driver/charger/sm5803.h"
#include "driver/temp_sensor/thermistor.h"
#include "driver/tcpm/it83xx_pd.h"
#include "driver/tcpm/ps8xxx.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 "tcpm/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
uint32_t board_version;
/* GPIO to enable/disable the USB Type-A port. */
const int usb_port_enable[USB_PORT_COUNT] = {
GPIO_EN_USB_A_5V,
};
/* 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);
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);
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(GPIO_USB_C1_INT_ODL)) {
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 button_sub_hdmi_hpd_interrupt(enum gpio_signal s)
{
int hdmi_hpd = gpio_get_level(GPIO_VOLUP_BTN_ODL_HDMI_HPD);
if (get_cbi_fw_config_db() == DB_1A_HDMI)
gpio_set_level(GPIO_EC_AP_USB_C1_HDMI_HPD, hdmi_hpd);
else
button_interrupt(s);
}
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);
}
static void pen_detect_interrupt(enum gpio_signal s)
{
int pen_detect = !gpio_get_level(GPIO_PEN_DET_ODL);
gpio_set_level(GPIO_EN_PP5000_PEN, pen_detect);
}
/* Must come after other header files and interrupt handler declarations */
#include "gpio_list.h"
/* ADC channels */
const struct adc_t adc_channels[] = {
[ADC_VSNS_PP3300_A] = {
.name = "PP3300_A_PGOOD",
.factor_mul = ADC_MAX_MVOLT,
.factor_div = ADC_READ_MAX + 1,
.shift = 0,
.channel = CHIP_ADC_CH0
},
[ADC_TEMP_SENSOR_1] = {
.name = "TEMP_SENSOR1",
.factor_mul = ADC_MAX_MVOLT,
.factor_div = ADC_READ_MAX + 1,
.shift = 0,
.channel = CHIP_ADC_CH2
},
[ADC_TEMP_SENSOR_2] = {
.name = "TEMP_SENSOR2",
.factor_mul = ADC_MAX_MVOLT,
.factor_div = ADC_READ_MAX + 1,
.shift = 0,
.channel = CHIP_ADC_CH3
},
[ADC_SUB_ANALOG] = {
.name = "SUB_ANALOG",
.factor_mul = ADC_MAX_MVOLT,
.factor_div = ADC_READ_MAX + 1,
.shift = 0,
.channel = CHIP_ADC_CH13
},
[ADC_TEMP_SENSOR_3] = {
.name = "TEMP_SENSOR3",
.factor_mul = ADC_MAX_MVOLT,
.factor_div = ADC_READ_MAX + 1,
.shift = 0,
.channel = CHIP_ADC_CH15
},
[ADC_TEMP_SENSOR_4] = {
.name = "TEMP_SENSOR4",
.factor_mul = ADC_MAX_MVOLT,
.factor_div = ADC_READ_MAX + 1,
.shift = 0,
.channel = CHIP_ADC_CH16
},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
/* 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,
},
};
/* 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 = PS8751_I2C_ADDR1_FLAGS,
},
.drv = &ps8xxx_tcpm_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 = PS8751_I2C_ADDR1_FLAGS,
.driver = &tcpci_tcpm_usb_mux_driver,
.hpd_update = &ps8xxx_tcpc_update_hpd_status,
},
};
/* Sensor Mutexes */
static struct mutex g_lid_mutex;
static struct mutex g_base_mutex;
/* Sensor Data */
static struct accelgyro_saved_data_t g_bma253_data;
static struct lsm6dsm_data lsm6dsm_data = LSM6DSM_DATA;
/* Matrix to rotate accelrator into standard reference frame */
static 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 = {
{ FLOAT_TO_FP(1), 0, 0},
{ 0, FLOAT_TO_FP(-1), 0},
{ 0, 0, FLOAT_TO_FP(-1)}
};
/* Drivers */
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_bma253_data,
.port = I2C_PORT_SENSOR,
.i2c_spi_addr_flags = BMA2x2_I2C_ADDR1_FLAGS,
.rot_standard_ref = &lid_standard_ref,
.default_range = 2,
.min_frequency = BMA255_ACCEL_MIN_FREQ,
.max_frequency = BMA255_ACCEL_MAX_FREQ,
.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 = &base_standard_ref,
.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,
},
};
unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
void board_init(void)
{
int on;
if (get_cbi_fw_config_db() == DB_1A_HDMI) {
/* Select HDMI option */
gpio_set_level(GPIO_HDMI_SEL_L, 0);
} else {
/* Select AUX option */
gpio_set_level(GPIO_HDMI_SEL_L, 1);
}
gpio_enable_interrupt(GPIO_USB_C0_INT_ODL);
gpio_enable_interrupt(GPIO_USB_C1_INT_ODL);
/* Store board version for use in determining charge limits */
cbi_get_board_version(&board_version);
/*
* If interrupt lines are already low, schedule them to be processed
* after inits are completed.
*/
if (!gpio_get_level(GPIO_USB_C0_INT_ODL))
hook_call_deferred(&check_c0_line_data, 0);
if (!gpio_get_level(GPIO_USB_C1_INT_ODL))
hook_call_deferred(&check_c1_line_data, 0);
gpio_enable_interrupt(GPIO_USB_C0_CCSBU_OVP_ODL);
if (get_cbi_fw_config_tablet_mode() == TABLET_MODE_PRESENT) {
motion_sensor_count = ARRAY_SIZE(motion_sensors);
/* Enable Base Accel interrupt */
gpio_enable_interrupt(GPIO_BASE_SIXAXIS_INT_L);
} else {
motion_sensor_count = 0;
gmr_tablet_switch_disable();
/* Base accel is not stuffed, don't allow line to float */
gpio_set_flags(GPIO_BASE_SIXAXIS_INT_L,
GPIO_INPUT | GPIO_PULL_DOWN);
}
gpio_enable_interrupt(GPIO_PEN_DET_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);
if (board_get_charger_chip_count() > 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 |
CHIPSET_STATE_SOFT_OFF);
board_power_5v_enable(on);
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
static void board_resume(void)
{
sm5803_disable_low_power_mode(CHARGER_PRIMARY);
if (board_get_charger_chip_count() > 1)
sm5803_disable_low_power_mode(CHARGER_SECONDARY);
}
DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_resume, HOOK_PRIO_DEFAULT);
static void board_suspend(void)
{
sm5803_enable_low_power_mode(CHARGER_PRIMARY);
if (board_get_charger_chip_count() > 1)
sm5803_enable_low_power_mode(CHARGER_SECONDARY);
}
DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_suspend, HOOK_PRIO_DEFAULT);
void board_hibernate(void)
{
/*
* Put all charger ICs present into low power mode before entering
* z-state.
*/
sm5803_hibernate(CHARGER_PRIMARY);
if (board_get_charger_chip_count() > 1)
sm5803_hibernate(CHARGER_SECONDARY);
}
__override void board_ocpc_init(struct ocpc_data *ocpc)
{
/* There's no provision to measure Isys */
ocpc->chg_flags[CHARGER_SECONDARY] |= OCPC_NO_ISYS_MEAS_CAP;
}
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 (board_get_charger_chip_count() > 1) {
if (sm5803_set_gpio0_level(1, !!enable))
CPRINTUSB("Failed to %sable sub rails!", enable ?
"en" : "dis");
}
}
__override uint8_t board_get_usb_pd_port_count(void)
{
enum fw_config_db db = get_cbi_fw_config_db();
if (db == DB_1A_HDMI || db == DB_NONE)
return CONFIG_USB_PD_PORT_MAX_COUNT - 1;
else if (db == DB_1C || db == DB_1C_LTE)
return CONFIG_USB_PD_PORT_MAX_COUNT;
ccprints("Unhandled DB configuration: %d", db);
return 0;
}
__override uint8_t board_get_charger_chip_count(void)
{
enum fw_config_db db = get_cbi_fw_config_db();
if (db == DB_1A_HDMI || db == DB_NONE)
return CHARGER_NUM - 1;
else if (db == DB_1C || db == DB_1C_LTE)
return CHARGER_NUM;
ccprints("Unhandled DB configuration: %d", db);
return 0;
}
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(GPIO_USB_C1_INT_ODL)) {
if (!tcpc_read16(1, TCPC_REG_ALERT, ®val)) {
if (regval)
status = PD_STATUS_TCPC_ALERT_1;
}
}
return status;
}
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);
/* Limit C1 on board version 0 to 2.0 A */
if ((board_version == 0) && (port == 1))
icl = MIN(icl, 2000);
/*
* 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 < board_get_usb_pd_port_count());
if (!is_valid_port && port != CHARGE_PORT_NONE)
return EC_ERROR_INVAL;
if (port == CHARGE_PORT_NONE) {
CPRINTUSB("Disabling all charge ports");
sm5803_vbus_sink_enable(CHARGER_PRIMARY, 0);
if (board_get_charger_chip_count() > 1)
sm5803_vbus_sink_enable(CHARGER_SECONDARY, 0);
return EC_SUCCESS;
}
CPRINTUSB("New chg p%d", port);
/*
* Ensure other port is turned off, then enable new charge port
*/
if (port == 0) {
if (board_get_charger_chip_count() > 1)
sm5803_vbus_sink_enable(CHARGER_SECONDARY, 0);
sm5803_vbus_sink_enable(CHARGER_PRIMARY, 1);
} else {
sm5803_vbus_sink_enable(CHARGER_PRIMARY, 0);
sm5803_vbus_sink_enable(CHARGER_SECONDARY, 1);
}
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 > board_get_usb_pd_port_count())
return;
current = (rp == TYPEC_RP_3A0) ? 3000 : 1500;
charger_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,
}
};
BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
/* 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},
[TEMP_SENSOR_3] = {.name = "Charger",
.type = TEMP_SENSOR_TYPE_BOARD,
.read = get_temp_3v3_51k1_47k_4050b,
.idx = ADC_TEMP_SENSOR_3},
[TEMP_SENSOR_4] = {.name = "5V regular",
.type = TEMP_SENSOR_TYPE_BOARD,
.read = get_temp_3v3_51k1_47k_4050b,
.idx = ADC_TEMP_SENSOR_4},
};
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
__override void ocpc_get_pid_constants(int *kp, int *kp_div,
int *ki, int *ki_div,
int *kd, int *kd_div)
{
*kp = 3;
*kp_div = 20;
*ki = 3;
*ki_div = 125;
*kd = 4;
*kd_div = 40;
}
#ifdef CONFIG_KEYBOARD_FACTORY_TEST
/*
* Map keyboard connector pins to EC GPIO pins for factory test.
* Pins mapped to {-1, -1} are skipped.
* The connector has 24 pins total, and there is no pin 0.
*/
const int keyboard_factory_scan_pins[][2] = {
{-1, -1}, {GPIO_KSO_H, 4}, {GPIO_KSO_H, 0}, {GPIO_KSO_H, 1},
{GPIO_KSO_H, 3}, {GPIO_KSO_H, 2}, {GPIO_KSO_L, 5}, {GPIO_KSO_L, 6},
{GPIO_KSO_L, 3}, {GPIO_KSO_L, 2}, {GPIO_KSI, 0}, {GPIO_KSO_L, 1},
{GPIO_KSO_L, 4}, {GPIO_KSI, 3}, {GPIO_KSI, 2}, {GPIO_KSO_L, 0},
{GPIO_KSI, 5}, {GPIO_KSI, 4}, {GPIO_KSO_L, 7}, {GPIO_KSI, 6},
{GPIO_KSI, 7}, {GPIO_KSI, 1}, {-1, -1}, {-1, -1}, {-1, -1},
};
const int keyboard_factory_scan_pins_used =
ARRAY_SIZE(keyboard_factory_scan_pins);
#endif
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