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chrome-ec/board/nocturne/board.c

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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.
*/
/* Nocturne board-specific configuration */
#include "adc_chip.h"
#include "button.h"
#include "charge_manager.h"
#include "charge_state.h"
#include "charge_state_v2.h"
#include "chipset.h"
#include "common.h"
#include "console.h"
#include "compile_time_macros.h"
#include "driver/accelgyro_bmi160.h"
#include "driver/als_opt3001.h"
#include "driver/ppc/sn5s330.h"
#include "driver/sync.h"
#include "driver/tcpm/ps8xxx.h"
#include "driver/temp_sensor/bd99992gw.h"
#include "ec_commands.h"
#include "extpower.h"
#include "gpio.h"
#include "hooks.h"
#include "i2c.h"
#include "lid_switch.h"
#include "lpc.h"
#include "mkbp_event.h"
#include "motion_sense.h"
#include "power.h"
#include "power_button.h"
#include "pwm.h"
#include "pwm_chip.h"
#include "registers.h"
#include "system.h"
#include "system_chip.h"
#include "switch.h"
#include "task.h"
#include "tcpci.h"
#include "temp_sensor.h"
#include "usb_mux.h"
#include "usb_pd_tcpm.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 tcpc_alert_event(enum gpio_signal s)
{
int port = -1;
switch (s) {
case GPIO_USB_C0_PD_INT_ODL:
port = 0;
break;
case GPIO_USB_C1_PD_INT_ODL:
port = 1;
break;
default:
return;
}
schedule_deferred_pd_interrupt(port);
}
/*
* Nocturne shares the TCPC Alert# line with the TI SN5S330's interrupt line.
* Therefore, we need to also check on that part.
*/
static void usb_c_interrupt(enum gpio_signal s)
{
int port = (s == GPIO_USB_C0_PD_INT_ODL) ? 0 : 1;
tcpc_alert_event(s);
sn5s330_interrupt(port);
}
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);
}
#include "gpio_list.h"
const enum gpio_signal hibernate_wake_pins[] = {
GPIO_LID_OPEN,
GPIO_AC_PRESENT,
GPIO_POWER_BUTTON_L,
};
const int hibernate_wake_pins_used = ARRAY_SIZE(hibernate_wake_pins);
const struct adc_t adc_channels[] = {
[ADC_BASE_ATTACH] = {
"BASE ATTACH", NPCX_ADC_CH0, ADC_MAX_VOLT, ADC_READ_MAX + 1, 0
},
[ADC_BASE_DETACH] = {
"BASE DETACH", NPCX_ADC_CH1, ADC_MAX_VOLT, ADC_READ_MAX + 1, 0
},
};
/* PWM channels. Must be in the exactly same order as in enum pwm_channel. */
const struct pwm_t pwm_channels[] = {
[PWM_CH_DB0_LED_RED] = { 3, PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP,
2400 },
[PWM_CH_DB0_LED_GREEN] = { 0, PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP,
2400 },
[PWM_CH_DB0_LED_BLUE] = { 2, PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP,
2400 },
[PWM_CH_DB1_LED_RED] = { 7, PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP,
2400 },
[PWM_CH_DB1_LED_GREEN] = { 5, PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP,
2400 },
[PWM_CH_DB1_LED_BLUE] = { 6, PWM_CONFIG_ACTIVE_LOW | PWM_CONFIG_DSLEEP,
2400 },
};
BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
/* I2C port map */
const struct i2c_port_t i2c_ports[] = {
{
"battery", I2C_PORT_BATTERY, 100, GPIO_EC_I2C4_BATTERY_SCL,
GPIO_EC_I2C4_BATTERY_SDA
},
{
"power", I2C_PORT_POWER, 100, GPIO_EC_I2C0_POWER_SCL,
GPIO_EC_I2C0_POWER_SDA
},
{
"als_gyro", I2C_PORT_ALS_GYRO, 400, GPIO_EC_I2C5_ALS_GYRO_SCL,
GPIO_EC_I2C5_ALS_GYRO_SDA
},
{
"usbc0", I2C_PORT_USB_C0, 100, GPIO_USB_C0_SCL, GPIO_USB_C0_SDA
},
{
"usbc1", I2C_PORT_USB_C1, 100, GPIO_USB_C1_SCL, GPIO_USB_C1_SDA
},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
/*
* Motion Sense
*/
/* Lid Sensor mutex */
static struct mutex g_lid_mutex;
/* Sensor driver data */
static struct bmi160_drv_data_t g_bmi160_data;
static struct opt3001_drv_data_t g_opt3001_data = {
.scale = 1,
.uscale = 0,
.offset = 0,
};
/* Matrix to rotate accel/gyro into standard reference frame. */
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 = "BMI160 ACC",
.active_mask = SENSOR_ACTIVE_S0_S3,
.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_ALS_GYRO,
.i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
.rot_standard_ref = &lid_standard_ref,
.default_range = 4, /* g */
.min_frequency = BMI160_ACCEL_MIN_FREQ,
.max_frequency = BMI160_ACCEL_MAX_FREQ,
.config = {
/* EC setup accel for chrome usage */
[SENSOR_CONFIG_EC_S0] = {
.odr = 10000 | ROUND_UP_FLAG,
},
},
},
[LID_GYRO] = {
.name = "BMI160 GYRO",
.active_mask = SENSOR_ACTIVE_S0_S3,
.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_ALS_GYRO,
.i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
.rot_standard_ref = &lid_standard_ref,
.default_range = 1000, /* dps */
.min_frequency = BMI160_GYRO_MIN_FREQ,
.max_frequency = BMI160_GYRO_MAX_FREQ,
},
[LID_ALS] = {
.name = "Light",
.active_mask = SENSOR_ACTIVE_S0_S3,
.chip = MOTIONSENSE_CHIP_OPT3001,
.type = MOTIONSENSE_TYPE_LIGHT,
.location = MOTIONSENSE_LOC_LID,
.drv = &opt3001_drv,
.drv_data = &g_opt3001_data,
.port = I2C_PORT_ALS_GYRO,
.i2c_spi_addr_flags = OPT3001_I2C_ADDR_FLAGS,
.rot_standard_ref = NULL,
/* scale = 43.4513 http://b/111528815#comment14 */
.default_range = 0x2b11a1,
.min_frequency = OPT3001_LIGHT_MIN_FREQ,
.max_frequency = OPT3001_LIGHT_MAX_FREQ,
.config = {
/* Run ALS sensor in S0 */
[SENSOR_CONFIG_EC_S0] = {
.odr = 1000,
},
},
},
[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);
/* ALS instances when LPC mapping is needed. Each entry directs to a sensor. */
const struct motion_sensor_t *motion_als_sensors[] = {
&motion_sensors[LID_ALS],
};
BUILD_ASSERT(ARRAY_SIZE(motion_als_sensors) == ALS_COUNT);
static void disable_sensor_irqs(void)
{
/*
* In S5, sensors are unpowered, therefore disable their interrupts on
* shutdown.
*/
gpio_disable_interrupt(GPIO_ACCELGYRO3_INT_L);
gpio_disable_interrupt(GPIO_RCAM_VSYNC);
}
DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, disable_sensor_irqs, HOOK_PRIO_DEFAULT);
static void enable_sensor_irqs(void)
{
/*
* Re-enable the sensor interrupts when entering S0.
*/
gpio_enable_interrupt(GPIO_ACCELGYRO3_INT_L);
gpio_enable_interrupt(GPIO_RCAM_VSYNC);
}
DECLARE_HOOK(HOOK_CHIPSET_RESUME, enable_sensor_irqs, HOOK_PRIO_DEFAULT);
struct ppc_config_t ppc_chips[] = {
{
.i2c_port = I2C_PORT_USB_C0,
.i2c_addr_flags = SN5S330_ADDR0_FLAGS,
.drv = &sn5s330_drv
},
{
.i2c_port = I2C_PORT_USB_C1,
.i2c_addr_flags = SN5S330_ADDR0_FLAGS,
.drv = &sn5s330_drv,
},
};
unsigned int ppc_cnt = ARRAY_SIZE(ppc_chips);
const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = {
{
.bus_type = EC_BUS_TYPE_I2C,
.i2c_info = {
.port = I2C_PORT_USB_C0,
.addr_flags = PS8751_I2C_ADDR1_FLAGS,
},
.drv = &tcpci_tcpm_drv,
},
{
.bus_type = EC_BUS_TYPE_I2C,
.i2c_info = {
.port = I2C_PORT_USB_C1,
.addr_flags = PS8751_I2C_ADDR1_FLAGS,
},
.drv = &tcpci_tcpm_drv,
},
};
struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = {
{
.driver = &tcpci_tcpm_usb_mux_driver,
.hpd_update = &ps8xxx_tcpc_update_hpd_status,
},
{
.driver = &tcpci_tcpm_usb_mux_driver,
.hpd_update = &ps8xxx_tcpc_update_hpd_status,
},
};
void board_chipset_startup(void)
{
gpio_set_level(GPIO_EN_5V, 1);
gpio_set_level(GPIO_PP3300_NVME_EN, 1);
msleep(2);
gpio_set_level(GPIO_PP1800_NVME_EN, 1);
gpio_set_level(GPIO_PPVAR_NVME_CORE_EN, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_STARTUP, board_chipset_startup, HOOK_PRIO_DEFAULT);
static void imvp8_tune_deferred(void)
{
/* For the IMVP8, reduce the steps during decay from 3 to 1. */
if (i2c_write16(I2C_PORT_POWER, I2C_ADDR_MP2949_FLAGS,
0xFA, 0x0AC5))
CPRINTS("Failed to change step decay!");
}
DECLARE_DEFERRED(imvp8_tune_deferred);
void board_chipset_resume(void)
{
/* Write to the IMVP8 after 250ms. */
hook_call_deferred(&imvp8_tune_deferred_data, 250 * MSEC);
}
DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT);
void board_chipset_shutdown(void)
{
gpio_set_level(GPIO_EN_5V, 0);
gpio_set_level(GPIO_PPVAR_NVME_CORE_EN, 0);
gpio_set_level(GPIO_PP1800_NVME_EN, 0);
msleep(2);
gpio_set_level(GPIO_PP3300_NVME_EN, 0);
}
DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, board_chipset_shutdown, HOOK_PRIO_DEFAULT);
int board_get_version(void)
{
static int board_version = -1;
if (board_version == -1) {
board_version = 0;
/* BRD_ID0 is LSb. */
if (gpio_get_level(GPIO_EC_BRD_ID0))
board_version |= 0x1;
if (gpio_get_level(GPIO_EC_BRD_ID1))
board_version |= 0x2;
if (gpio_get_level(GPIO_EC_BRD_ID2))
board_version |= 0x4;
if (gpio_get_level(GPIO_EC_BRD_ID3))
board_version |= 0x8;
}
return board_version;
}
void board_hibernate(void)
{
int p;
/* Configure PSL pins */
for (p = 0; p < hibernate_wake_pins_used; p++)
system_config_psl_mode(hibernate_wake_pins[p]);
/*
* Enter PSL mode. Note that on Nocturne, simply enabling PSL mode does
* not cut the EC's power. Therefore, we'll need to cut off power via
* the ROP PMIC afterwards.
*/
system_enter_psl_mode();
/* Cut off DSW power via the ROP PMIC. */
i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x49, 0x1);
/* Wait for power to be cut. */
while (1)
;
}
static void board_init(void)
{
/* Enable USB Type-C interrupts. */
gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL);
gpio_enable_interrupt(GPIO_USB_C1_PD_INT_ODL);
/* Enable sensor IRQs if we're in S0. */
if (chipset_in_state(CHIPSET_STATE_ON))
enable_sensor_irqs();
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
int board_is_i2c_port_powered(int port)
{
if (port != I2C_PORT_ALS_GYRO)
return 1;
/* The sensors are not powered in anything lower than S5. */
return chipset_in_state(CHIPSET_STATE_ANY_OFF) ? 0 : 1;
}
static void board_lid_change(void)
{
/* This is done in hardware on old revisions. */
if (board_get_version() <= 1)
return;
if (lid_is_open())
gpio_set_level(GPIO_UHALL_PWR_EN, 1);
else
gpio_set_level(GPIO_UHALL_PWR_EN, 0);
}
DECLARE_HOOK(HOOK_LID_CHANGE, board_lid_change, HOOK_PRIO_DEFAULT);
static void board_pmic_disable_slp_s0_vr_decay(void)
{
/*
* VCCIOCNT:
* Bit 6 (0) - Disable decay of VCCIO on SLP_S0# assertion
* Bits 5:4 (11) - Nominal output voltage: 0.850V
* Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
* Bits 1:0 (10) - VR set to AUTO operating mode
*/
i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x30, 0x3a);
/*
* V18ACNT:
* Bits 7:6 (00) - Disable low power mode on SLP_S0# assertion
* Bits 5:4 (10) - Nominal voltage set to 1.8V
* Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
* Bits 1:0 (10) - VR set to AUTO operating mode
*/
i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x34, 0x2a);
/*
* V100ACNT:
* Bits 7:6 (00) - Disable low power mode on SLP_S0# assertion
* Bits 5:4 (01) - Nominal voltage 1.0V
* Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
* Bits 1:0 (10) - VR set to AUTO operating mode
*/
i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x37, 0x1a);
/*
* V085ACNT:
* Bits 7:6 (00) - Disable low power mode on SLP_S0# assertion
* Bits 5:4 (10) - Nominal voltage 0.85V
* Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
* Bits 1:0 (10) - VR set to AUTO operating mode
*/
i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x38, 0x2a);
}
static void board_pmic_enable_slp_s0_vr_decay(void)
{
/*
* VCCIOCNT:
* Bit 6 (1) - Enable decay of VCCIO on SLP_S0# assertion
* Bits 5:4 (11) - Nominal output voltage: 0.850V
* Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
* Bits 1:0 (10) - VR set to AUTO operating mode
*/
i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x30, 0x7a);
/*
* V18ACNT:
* Bits 7:6 (01) - Enable low power mode on SLP_S0# assertion
* Bits 5:4 (10) - Nominal voltage set to 1.8V
* Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
* Bits 1:0 (10) - VR set to AUTO operating mode
*/
i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x34, 0x6a);
/*
* V100ACNT:
* Bits 7:6 (01) - Enable low power mode on SLP_S0# assertion
* Bits 5:4 (01) - Nominal voltage 1.0V
* Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
* Bits 1:0 (10) - VR set to AUTO operating mode
*/
i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x37, 0x5a);
/*
* V085ACNT:
* Bits 7:6 (01) - Enable low power mode on SLP_S0# assertion
* Bits 5:4 (10) - Nominal voltage 0.85V
* Bits 3:2 (10) - VR set to AUTO on SLP_S0# de-assertion
* Bits 1:0 (10) - VR set to AUTO operating mode
*/
i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x38, 0x6a);
}
void power_board_handle_host_sleep_event(enum host_sleep_event state)
{
if (state == HOST_SLEEP_EVENT_S0IX_SUSPEND)
board_pmic_enable_slp_s0_vr_decay();
else if (state == HOST_SLEEP_EVENT_S0IX_RESUME)
board_pmic_disable_slp_s0_vr_decay();
}
static void board_pmic_init(void)
{
int pgmask1;
/* Mask V5A_DS3_PG from PMIC PGMASK1. */
if (i2c_read8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS,
0x18, &pgmask1))
return;
pgmask1 |= BIT(2);
i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x18, pgmask1);
board_pmic_disable_slp_s0_vr_decay();
/* Enable active discharge (100 ohms) on V33A_PCH and V1.8A. */
i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x3D, 0x5);
}
DECLARE_HOOK(HOOK_INIT, board_pmic_init, HOOK_PRIO_DEFAULT);
static void board_quirks(void)
{
/*
* Newer board revisions have external pull ups stuffed, so remove the
* internal pulls.
*/
if (board_get_version() > 0) {
gpio_set_flags(GPIO_USB_C0_PD_INT_ODL, GPIO_INT_FALLING);
gpio_set_flags(GPIO_USB_C1_PD_INT_ODL, GPIO_INT_FALLING);
}
/*
* Older boards don't have the SBU bypass circuitry needed for CCD, so
* enable the CCD_MODE_ODL interrupt such that we can help in making
* sure the SBU FETs are connected.
*/
if (board_get_version() < 2)
gpio_enable_interrupt(GPIO_CCD_MODE_ODL);
}
DECLARE_HOOK(HOOK_INIT, board_quirks, HOOK_PRIO_DEFAULT);
void board_overcurrent_event(int port, int is_overcurrented)
{
int lvl;
/* Sanity check the port. */
if ((port < 0) || (port >= CONFIG_USB_PD_PORT_COUNT))
return;
/* Note that the levels are inverted because the pin is active low. */
lvl = is_overcurrented ? 0 : 1;
switch (port) {
case 0:
gpio_set_level(GPIO_USB_C0_OC_ODL, lvl);
break;
case 1:
gpio_set_level(GPIO_USB_C1_OC_ODL, lvl);
break;
default:
return;
};
}
static int read_gyro_sensor_temp(int idx, int *temp_ptr)
{
/*
* The gyro is only powered in S0, so don't go and read it if the AP is
* off.
*/
if (chipset_in_state(CHIPSET_STATE_ANY_OFF))
return EC_ERROR_NOT_POWERED;
return bmi160_get_sensor_temp(idx, temp_ptr);
}
const struct temp_sensor_t temp_sensors[] = {
{"Battery", TEMP_SENSOR_TYPE_BATTERY, charge_get_battery_temp, 0, 4},
/* These BD99992GW temp sensors are only readable in S0 */
{"Ambient", TEMP_SENSOR_TYPE_BOARD, bd99992gw_get_val,
BD99992GW_ADC_CHANNEL_SYSTHERM0, 4},
{"Charger", TEMP_SENSOR_TYPE_BOARD, bd99992gw_get_val,
BD99992GW_ADC_CHANNEL_SYSTHERM1, 4},
{"DRAM", TEMP_SENSOR_TYPE_BOARD, bd99992gw_get_val,
BD99992GW_ADC_CHANNEL_SYSTHERM2, 4},
{"eMMC", TEMP_SENSOR_TYPE_BOARD, bd99992gw_get_val,
BD99992GW_ADC_CHANNEL_SYSTHERM3, 4},
/* The Gyro temperature sensor is only readable in S0. */
{"Gyro", TEMP_SENSOR_TYPE_BOARD, read_gyro_sensor_temp, LID_GYRO, 1}
};
BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
/*
* Check if PMIC fault registers indicate VR fault. If yes, print out fault
* register info to console. Additionally, set panic reason so that the OS can
* check for fault register info by looking at offset 0x14(PWRSTAT1) and
* 0x15(PWRSTAT2) in cros ec panicinfo.
*/
static void board_report_pmic_fault(const char *str)
{
int vrfault, pwrstat1 = 0, pwrstat2 = 0;
uint32_t info;
/* RESETIRQ1 -- Bit 4: VRFAULT */
if (i2c_read8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x8, &vrfault)
!= EC_SUCCESS)
return;
if (!(vrfault & BIT(4)))
return;
/* VRFAULT has occurred, print VRFAULT status bits. */
/* PWRSTAT1 */
i2c_read8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x16, &pwrstat1);
/* PWRSTAT2 */
i2c_read8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x17, &pwrstat2);
CPRINTS("PMIC VRFAULT: %s", str);
CPRINTS("PMIC VRFAULT: PWRSTAT1=0x%02x PWRSTAT2=0x%02x", pwrstat1,
pwrstat2);
/* Clear all faults -- Write 1 to clear. */
i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x8, BIT(4));
i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x16, pwrstat1);
i2c_write8(I2C_PORT_PMIC, I2C_ADDR_BD99992_FLAGS, 0x17, pwrstat2);
/*
* Status of the fault registers can be checked in the OS by looking at
* offset 0x14(PWRSTAT1) and 0x15(PWRSTAT2) in cros ec panicinfo.
*/
info = ((pwrstat2 & 0xFF) << 8) | (pwrstat1 & 0xFF);
panic_set_reason(PANIC_SW_PMIC_FAULT, info, 0);
}
void board_reset_pd_mcu(void)
{
cprints(CC_USB, "Resetting TCPCs...");
cflush();
/* GPIO_USB_PD_RST_L resets all the TCPCs. */
gpio_set_level(GPIO_USB_PD_RST_L, 0);
msleep(10); /* TODO(aaboagye): Verify min hold time. */
gpio_set_level(GPIO_USB_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();
}
void board_rtc_reset(void)
{
cprints(CC_SYSTEM, "Asserting RTCRST# to PCH");
gpio_set_level(GPIO_EC_PCH_RTCRST, 1);
udelay(100);
gpio_set_level(GPIO_EC_PCH_RTCRST, 0);
}
int board_set_active_charge_port(int port)
{
int is_real_port = (port >= 0 &&
port < CONFIG_USB_PD_PORT_COUNT);
int i;
int rv;
int old_port;
if (!is_real_port && port != CHARGE_PORT_NONE)
return EC_ERROR_INVAL;
old_port = charge_manager_get_active_charge_port();
CPRINTS("New chg p%d", port);
if (port == CHARGE_PORT_NONE) {
/* Disable all ports. */
for (i = 0; i < ppc_cnt; i++) {
rv = ppc_vbus_sink_enable(i, 0);
/*
* Deliberately ignoring this error since it may cause
* an assertion error.
*/
if (rv)
CPRINTS("Disabling p%d sink path failed.", i);
}
return EC_SUCCESS;
}
/* Check if the port is sourcing VBUS. */
if (ppc_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 < ppc_cnt; i++) {
if (i == port)
continue;
if (ppc_vbus_sink_enable(i, 0))
CPRINTS("p%d: sink path disable failed.", i);
}
/*
* Stop the charger IC from switching while changing ports. Otherwise,
* we can overcurrent the adapter we're switching to. (crbug.com/926056)
*/
if (old_port != CHARGE_PORT_NONE)
charger_discharge_on_ac(1);
/* Enable requested charge port. */
if (ppc_vbus_sink_enable(port, 1)) {
CPRINTS("p%d: sink path enable failed.");
charger_discharge_on_ac(0);
return EC_ERROR_UNKNOWN;
}
/* Allow the charger IC to begin/continue switching. */
charger_discharge_on_ac(0);
return EC_SUCCESS;
}
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);
/*
* Nocturne seems to overdraw its set input current limit by about 5%.
* Request at most 95% of what's desired.
*/
icl = icl * 95 / 100;
charge_set_input_current_limit(icl, charge_mv);
}
static void board_chipset_reset(void)
{
board_report_pmic_fault("CHIPSET RESET");
}
DECLARE_HOOK(HOOK_CHIPSET_RESET, board_chipset_reset, HOOK_PRIO_DEFAULT);
uint16_t tcpc_get_alert_status(void)
{
uint16_t status = 0;
int regval;
/*
* The interrupt line is shared between the TCPC and PPC. Therefore, go
* out and actually read the alert registers to report the alert status.
*/
if (!gpio_get_level(GPIO_USB_C0_PD_INT_ODL)) {
if (!tcpc_read16(0, TCPC_REG_ALERT, &regval)) {
/* The TCPCI spec says to ignore bits 14:12. */
regval &= ~(BIT(14) | BIT(13) | BIT(12));
if (regval)
status |= PD_STATUS_TCPC_ALERT_0;
}
}
if (!gpio_get_level(GPIO_USB_C1_PD_INT_ODL)) {
if (!tcpc_read16(1, TCPC_REG_ALERT, &regval)) {
/* TCPCI spec says to ignore bits 14:12. */
regval &= ~(BIT(14) | BIT(13) | BIT(12));
if (regval)
status |= PD_STATUS_TCPC_ALERT_1;
}
}
return status;
}
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