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/* Copyright 2018 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.
*/
/* Cheza board-specific configuration */
#include "adc_chip.h"
#include "button.h"
#include "charge_manager.h"
#include "charge_state.h"
#include "chipset.h"
#include "extpower.h"
#include "driver/accelgyro_bmi160.h"
#include "driver/ppc/sn5s330.h"
#include "driver/tcpm/anx74xx.h"
#include "driver/tcpm/ps8xxx.h"
#include "driver/tcpm/tcpci.h"
#include "gpio.h"
#include "hooks.h"
#include "lid_switch.h"
#include "pi3usb9281.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 "task.h"
#include "usb_charge.h"
#include "usb_mux.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)
#define USB_PD_PORT_ANX3429 0
#define USB_PD_PORT_PS8751 1
/* Forward declaration */
static void tcpc_alert_event(enum gpio_signal signal);
static void vbus0_evt(enum gpio_signal signal);
static void vbus1_evt(enum gpio_signal signal);
static void usb0_evt(enum gpio_signal signal);
static void usb1_evt(enum gpio_signal signal);
static void ppc_interrupt(enum gpio_signal signal);
static void anx74xx_cable_det_interrupt(enum gpio_signal signal);
#include "gpio_list.h"
/* GPIO Interrupt Handlers */
static void tcpc_alert_event(enum gpio_signal signal)
{
#ifdef HAS_TASK_PDCMD
/* Exchange status with TCPCs */
host_command_pd_send_status(PD_CHARGE_NO_CHANGE);
#endif
}
static void vbus0_evt(enum gpio_signal signal)
{
/* VBUS present GPIO is inverted */
usb_charger_vbus_change(0, !gpio_get_level(GPIO_USB_C0_VBUS_DET_L));
task_wake(TASK_ID_PD_C0);
}
static void vbus1_evt(enum gpio_signal signal)
{
/* VBUS present GPIO is inverted */
usb_charger_vbus_change(1, !gpio_get_level(GPIO_USB_C1_VBUS_DET_L));
task_wake(TASK_ID_PD_C1);
}
static void usb0_evt(enum gpio_signal signal)
{
task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12, 0);
}
static void usb1_evt(enum gpio_signal signal)
{
task_set_event(TASK_ID_USB_CHG_P1, USB_CHG_EVENT_BC12, 0);
}
static void anx74xx_cable_det_handler(void)
{
int cable_det = gpio_get_level(GPIO_USB_C0_CABLE_DET);
int reset_n = gpio_get_level(GPIO_USB_C0_PD_RST_R_L);
/*
* A cable_det low->high transition was detected. If following the
* debounce time, cable_det is high, and reset_n is low, then ANX3429 is
* currently in standby mode and needs to be woken up. Set the
* TCPC_RESET event which will bring the ANX3429 out of standby
* mode. Setting this event is gated on reset_n being low because the
* ANX3429 will always set cable_det when transitioning to normal mode
* and if in normal mode, then there is no need to trigger a tcpc reset.
*/
if (cable_det && !reset_n)
task_set_event(TASK_ID_PD_C0, PD_EVENT_TCPC_RESET, 0);
}
DECLARE_DEFERRED(anx74xx_cable_det_handler);
static void anx74xx_cable_det_interrupt(enum gpio_signal signal)
{
/* debounce for 2 msec */
hook_call_deferred(&anx74xx_cable_det_handler_data, (2 * MSEC));
}
static void ppc_interrupt(enum gpio_signal signal)
{
/* Only port-0 uses PPC chip */
sn5s330_interrupt(0);
}
/* ADC channels */
const struct adc_t adc_channels[] = {
/* Base detection */
[ADC_BASE_DET] = {
"BASE_DET",
NPCX_ADC_CH0,
ADC_MAX_VOLT,
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 12.4K resistor, to read
* 0.8V @ 45 W, i.e. 56250 uW/mV. Using ADC_MAX_VOLT*56250 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 * 56250 * 2 / (ADC_READ_MAX + 1),
2,
0
},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
const struct pwm_t pwm_channels[] = {
/* TODO(waihong): Assign a proper frequency. */
[PWM_CH_DISPLIGHT] = { 5, 0, 4800 },
};
BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
/* Power signal list. Must match order of enum power_signal. */
/*
* PMIC pulls up the AP_RST_L signal to power-on AP. Once AP is up, it then
* pulls up the PS_HOLD signal.
*
* +--> GPIO_AP_RST_L >--+
* PMIC AP
* +--< GPIO_PS_HOLD <---+
*
* When AP initiates shutdown, it pulls down the PS_HOLD signal to notify
* PMIC. PMIC then pulls down the AP_RST_L.
*
* TODO(b/78455067): By far, we use the AP_RST_L signal to indicate AP in a
* good state. Address the issue of AP-initiated warm reset.
*/
const struct power_signal_info power_signal_list[] = {
{GPIO_AP_RST_L, POWER_SIGNAL_ACTIVE_HIGH, "POWER_GOOD"},
};
BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
/* I2C port map */
const struct i2c_port_t i2c_ports[] = {
{"power", I2C_PORT_POWER, 100, GPIO_I2C0_SCL, GPIO_I2C0_SDA},
/* TODO(b/78189419): ANX7428 operates at 400kHz initially. */
{"tcpc0", I2C_PORT_TCPC0, 400, GPIO_I2C1_SCL, GPIO_I2C1_SDA},
{"tcpc1", I2C_PORT_TCPC1, 1000, GPIO_I2C2_SCL, GPIO_I2C2_SDA},
{"eeprom", I2C_PORT_EEPROM, 400, GPIO_I2C5_SCL, GPIO_I2C5_SDA},
{"sensor", I2C_PORT_SENSOR, 400, GPIO_I2C7_SCL, GPIO_I2C7_SDA},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
/* Power Path Controller */
struct ppc_config_t ppc_chips[] = {
{
.i2c_port = I2C_PORT_TCPC0,
.i2c_addr = SN5S330_ADDR0,
.drv = &sn5s330_drv
},
/*
* Port 1 uses two power switches instead:
* NX5P3290: to source VBUS
* NX20P5090: to sink VBUS (charge battery)
* which are controlled directly by EC GPIOs.
*/
};
unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips);
/* TCPC mux configuration */
const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = {
[USB_PD_PORT_ANX3429] = {I2C_PORT_TCPC0, 0x50, &anx74xx_tcpm_drv,
TCPC_ALERT_ACTIVE_LOW},
[USB_PD_PORT_PS8751] = {I2C_PORT_TCPC1, 0x16, &ps8xxx_tcpm_drv,
TCPC_ALERT_ACTIVE_LOW},
};
struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = {
{
.port_addr = USB_PD_PORT_ANX3429,
.driver = &anx74xx_tcpm_usb_mux_driver,
.hpd_update = &anx74xx_tcpc_update_hpd_status,
},
{
.port_addr = USB_PD_PORT_PS8751,
.driver = &tcpci_tcpm_usb_mux_driver,
.hpd_update = &ps8xxx_tcpc_update_hpd_status,
}
};
/* BC1.2 */
struct pi3usb9281_config pi3usb9281_chips[] = {
{
.i2c_port = I2C_PORT_POWER,
},
{
.i2c_port = I2C_PORT_EEPROM,
},
};
BUILD_ASSERT(ARRAY_SIZE(pi3usb9281_chips) ==
CONFIG_BC12_DETECT_PI3USB9281_CHIP_COUNT);
/* Initialize board. */
static void board_init(void)
{
/* Enable BC1.2 VBUS detection */
gpio_enable_interrupt(GPIO_USB_C0_VBUS_DET_L);
gpio_enable_interrupt(GPIO_USB_C1_VBUS_DET_L);
/* Enable BC1.2 interrupts */
gpio_enable_interrupt(GPIO_USB_C0_BC12_INT_L);
gpio_enable_interrupt(GPIO_USB_C1_BC12_INT_L);
/* Enable interrupt for BMI160 sensor */
gpio_enable_interrupt(GPIO_ACCEL_GYRO_INT_L);
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
void board_tcpc_init(void)
{
int port;
/* Only reset TCPC if not sysjump */
if (!system_jumped_to_this_image()) {
/* 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);
gpio_enable_interrupt(GPIO_USB_C1_PD_INT_ODL);
/* Enable CABLE_DET interrupt for ANX3429 wake from standby */
gpio_enable_interrupt(GPIO_USB_C0_CABLE_DET);
/*
* Initialize HPD to low; after sysjump SOC needs to see
* HPD pulse to enable video path
*/
for (port = 0; port < CONFIG_USB_PD_PORT_COUNT; port++) {
const struct usb_mux *mux = &usb_muxes[port];
mux->hpd_update(port, 0, 0);
}
}
DECLARE_HOOK(HOOK_INIT, board_tcpc_init, HOOK_PRIO_INIT_I2C+1);
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);
}
DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT);
static void board_chipset_resume(void)
{
/* Turn on display backlight in S0. */
gpio_set_level(GPIO_ENABLE_BACKLIGHT, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT);
/**
* Power on (or off) a single TCPC.
* minimum on/off delays are included.
*
* @param port Port number of TCPC.
* @param mode 0: power off, 1: power on.
*/
void board_set_tcpc_power_mode(int port, int mode)
{
if (port != USB_PD_PORT_ANX3429)
return;
if (mode) {
gpio_set_level(GPIO_EN_USB_C0_TCPC_PWR, 1);
msleep(ANX74XX_PWR_H_RST_H_DELAY_MS);
gpio_set_level(GPIO_USB_C0_PD_RST_R_L, 1);
} else {
gpio_set_level(GPIO_USB_C0_PD_RST_R_L, 0);
msleep(ANX74XX_RST_L_PWR_L_DELAY_MS);
gpio_set_level(GPIO_EN_USB_C0_TCPC_PWR, 0);
msleep(ANX74XX_PWR_L_PWR_H_DELAY_MS);
}
}
void board_reset_pd_mcu(void)
{
/* Assert reset */
gpio_set_level(GPIO_USB_C0_PD_RST_R_L, 0);
gpio_set_level(GPIO_USB_C1_PD_RST_ODL, 0);
msleep(MAX(1, ANX74XX_RST_L_PWR_L_DELAY_MS));
gpio_set_level(GPIO_USB_C1_PD_RST_ODL, 1);
/* Disable TCPC0 (anx3429) power */
gpio_set_level(GPIO_EN_USB_C0_TCPC_PWR, 0);
msleep(ANX74XX_PWR_L_PWR_H_DELAY_MS);
board_set_tcpc_power_mode(USB_PD_PORT_ANX3429, 1);
}
int board_vbus_sink_enable(int port, int enable)
{
if (port == USB_PD_PORT_ANX3429) {
/* Port 0 is controlled by a PPC SN5S330 */
return ppc_vbus_sink_enable(port, enable);
} else if (port == USB_PD_PORT_PS8751) {
/* Port 1 is controlled by a power switch NX20P5090 */
gpio_set_level(GPIO_EN_USB_C1_CHARGE_EC_L, !enable);
return EC_SUCCESS;
}
return EC_ERROR_INVAL;
}
int board_is_sourcing_vbus(int port)
{
if (port == USB_PD_PORT_ANX3429) {
/* Port 0 is controlled by a PPC SN5S330 */
return ppc_is_sourcing_vbus(port);
} else if (port == USB_PD_PORT_PS8751) {
/* Port 1 is controlled by a power switch NX5P3290 */
return gpio_get_level(GPIO_EN_USB_C1_5V_OUT);
}
return EC_ERROR_INVAL;
}
void board_overcurrent_event(int port)
{
/* TODO(waihong): 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_COUNT);
int i;
int rv;
if (!is_real_port && port != CHARGE_PORT_NONE)
return EC_ERROR_INVAL;
CPRINTS("New chg p%d", port);
if (port == CHARGE_PORT_NONE) {
/* Disable all ports. */
for (i = 0; i < CONFIG_USB_PD_PORT_COUNT; i++) {
rv = board_vbus_sink_enable(i, 0);
if (rv) {
CPRINTS("Disabling p%d sink path failed.", i);
return rv;
}
}
return EC_SUCCESS;
}
/* Check if the port is sourcing VBUS. */
if (board_is_sourcing_vbus(port)) {
CPRINTF("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_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.");
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_R_L))
status |= PD_STATUS_TCPC_ALERT_0;
if (!gpio_get_level(GPIO_USB_C1_PD_INT_ODL))
if (gpio_get_level(GPIO_USB_C1_PD_RST_ODL))
status |= PD_STATUS_TCPC_ALERT_1;
return status;
}
/* Mutexes */
static struct mutex g_lid_mutex;
static struct bmi160_drv_data_t g_bmi160_data;
/* Matrix to rotate accelerometer into standard reference frame */
const matrix_3x3_t base_standard_ref = {
{ FLOAT_TO_FP(-1), 0, 0},
{ 0, FLOAT_TO_FP(-1), 0},
{ 0, 0, FLOAT_TO_FP(1)}
};
struct motion_sensor_t motion_sensors[] = {
/*
* Note: bmi160: supports accelerometer and gyro sensor
* Requirement: accelerometer sensor must init before gyro sensor
* DO NOT change the order of the following table.
*/
[LID_ACCEL] = {
.name = "Accel",
.active_mask = SENSOR_ACTIVE_S0_S3_S5,
.chip = MOTIONSENSE_CHIP_BMI160,
.type = MOTIONSENSE_TYPE_ACCEL,
.location = MOTIONSENSE_LOC_LID,
.drv = &bmi160_drv,
.mutex = &g_lid_mutex,
.drv_data = &g_bmi160_data,
.port = I2C_PORT_SENSOR,
.addr = BMI160_ADDR0,
.rot_standard_ref = &base_standard_ref,
.default_range = 4, /* g */
.min_frequency = BMI160_ACCEL_MIN_FREQ,
.max_frequency = BMI160_ACCEL_MAX_FREQ,
.config = {
[SENSOR_CONFIG_EC_S0] = {
.odr = 10000 | ROUND_UP_FLAG,
},
},
},
[LID_GYRO] = {
.name = "Gyro",
.active_mask = SENSOR_ACTIVE_S0_S3_S5,
.chip = MOTIONSENSE_CHIP_BMI160,
.type = MOTIONSENSE_TYPE_GYRO,
.location = MOTIONSENSE_LOC_LID,
.drv = &bmi160_drv,
.mutex = &g_lid_mutex,
.drv_data = &g_bmi160_data,
.port = I2C_PORT_SENSOR,
.addr = BMI160_ADDR0,
.default_range = 1000, /* dps */
.rot_standard_ref = &base_standard_ref,
.min_frequency = BMI160_GYRO_MIN_FREQ,
.max_frequency = BMI160_GYRO_MAX_FREQ,
},
};
const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
|