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/* Copyright 2016 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.
*/
/* Oak board configuration */
#include "adc.h"
#include "adc_chip.h"
#include "als.h"
#include "atomic.h"
#include "battery.h"
#include "button.h"
#include "charge_manager.h"
#include "charge_state.h"
#include "charger.h"
#include "chipset.h"
#include "common.h"
#include "console.h"
#include "driver/accelgyro_bmi160.h"
#include "driver/als_isl29035.h"
#include "driver/tcpm/anx7688.h"
#include "driver/tcpm/tcpci.h"
#include "driver/temp_sensor/tmp432.h"
#include "extpower.h"
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
#include "i2c.h"
#include "keyboard_raw.h"
#include "keyboard_scan.h"
#include "lid_switch.h"
#include "math_util.h"
#include "motion_lid.h"
#include "motion_sense.h"
#include "pi3usb9281.h"
#include "power.h"
#include "power_button.h"
#include "registers.h"
#include "spi.h"
#include "switch.h"
#include "system.h"
#include "task.h"
#include "temp_sensor.h"
#include "temp_sensor_chip.h"
#include "thermal.h"
#include "timer.h"
#include "usb_charge.h"
#include "usb_mux.h"
#include "usb_pd.h"
#include "usb_pd_tcpm.h"
#include "util.h"
#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args)
#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args)
/* Dispaly port hardware can connect to port 0, 1 or neither. */
#define PD_PORT_NONE -1
void pd_mcu_interrupt(enum gpio_signal signal)
{
#ifdef HAS_TASK_PDCMD
/* Exchange status with PD MCU to determine interrupt cause */
host_command_pd_send_status(0);
#endif
}
void deferred_reset_pd_mcu(void);
DECLARE_DEFERRED(deferred_reset_pd_mcu);
void usb_evt(enum gpio_signal signal)
{
if (!gpio_get_level(GPIO_BC12_WAKE_L))
task_set_event(TASK_ID_USB_CHG_P0, USB_CHG_EVENT_BC12, 0);
}
#include "gpio_list.h"
/* power signal list. Must match order of enum power_signal. */
const struct power_signal_info power_signal_list[] = {
{GPIO_SOC_POWER_GOOD, POWER_SIGNAL_ACTIVE_HIGH, "POWER_GOOD"},
{GPIO_SUSPEND_L, POWER_SIGNAL_ACTIVE_LOW, "SUSPEND#_ASSERTED"},
};
BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
/* ADC channels */
const struct adc_t adc_channels[] = {
/*
* PSYS_MONITOR(PA2): ADC_IN2, 1.44 uA/W on 6.05k Ohm
* output in mW
*/
[ADC_PSYS] = {"PSYS", 379415, 4096, 0, STM32_AIN(2)},
/* AMON_BMON(PC0): ADC_IN10, output in uV */
[ADC_AMON_BMON] = {"AMON_BMON", 183333, 4096, 0, STM32_AIN(10)},
/* VDC_BOOSTIN_SENSE(PC1): ADC_IN11, output in mV */
[ADC_VBUS] = {"VBUS", 33000, 4096, 0, STM32_AIN(11)},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
int anx7688_passthru_allowed(const struct i2c_port_t *port, uint16_t address)
{
/* Allow access to 0x2c (TCPC) */
if (address == 0x2c)
return 1;
CPRINTF("Passthru rejected on %x", address);
return 0;
}
/* I2C ports */
const struct i2c_port_t i2c_ports[] = {
{"battery", I2C_PORT_BATTERY, 100, GPIO_I2C0_SCL, GPIO_I2C0_SDA},
{"pd", I2C_PORT_PD_MCU, 1000, GPIO_I2C1_SCL, GPIO_I2C1_SDA,
anx7688_passthru_allowed}
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
/* SPI devices */
const struct spi_device_t spi_devices[] = {
{ CONFIG_SPI_ACCEL_PORT, 2, GPIO_SPI2_NSS },
};
const unsigned int spi_devices_used = ARRAY_SIZE(spi_devices);
/* TCPC */
const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = {
{I2C_PORT_TCPC, CONFIG_TCPC_I2C_BASE_ADDR, &anx7688_tcpm_drv},
};
struct pi3usb9281_config pi3usb9281_chips[] = {
{
.i2c_port = I2C_PORT_PERICOM,
.mux_lock = NULL,
},
};
BUILD_ASSERT(ARRAY_SIZE(pi3usb9281_chips) ==
CONFIG_BC12_DETECT_PI3USB9281_CHIP_COUNT);
/*
* Temperature sensors data; must be in same order as enum temp_sensor_id.
* Sensor index and name must match those present in coreboot:
* src/mainboard/google/${board}/acpi/dptf.asl
*/
const struct temp_sensor_t temp_sensors[] = {
#ifdef CONFIG_TEMP_SENSOR_TMP432
{"TMP432_Internal", TEMP_SENSOR_TYPE_BOARD, tmp432_get_val,
TMP432_IDX_LOCAL, 4},
{"TMP432_Sensor_1", TEMP_SENSOR_TYPE_BOARD, tmp432_get_val,
TMP432_IDX_REMOTE1, 4},
{"TMP432_Sensor_2", TEMP_SENSOR_TYPE_BOARD, tmp432_get_val,
TMP432_IDX_REMOTE2, 4},
#endif
{"Battery", TEMP_SENSOR_TYPE_BATTERY, charge_get_battery_temp,
0, 4},
};
BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = {
{
.port_addr = 0, /* port idx */
.driver = &anx7688_usb_mux_driver,
},
};
/**
* Reset PD MCU
* ANX7688 needs a reset pulse of 50ms after power enable.
*/
void deferred_reset_pd_mcu(void)
{
uint8_t state = gpio_get_level(GPIO_USB_C0_PWR_EN_L) |
(gpio_get_level(GPIO_USB_C0_RST) << 1);
CPRINTS("%s %d", __func__, state);
switch (state) {
case 0:
/*
* PWR_EN_L low, RST low
* start reset sequence by turning off power enable
* and wait for 1ms.
*/
gpio_set_level(GPIO_USB_C0_PWR_EN_L, 1);
hook_call_deferred(&deferred_reset_pd_mcu_data, 1*MSEC);
break;
case 1:
/*
* PWR_EN_L high, RST low
* pull PD reset pin and wait for another 1ms
*/
gpio_set_level(GPIO_USB_C0_RST, 1);
hook_call_deferred(&deferred_reset_pd_mcu_data, 1*MSEC);
/* on PD reset, trigger PD task to reset state */
task_set_event(TASK_ID_PD_C0, PD_EVENT_TCPC_RESET, 0);
break;
case 3:
/*
* PWR_EN_L high, RST high
* enable power and wait for 10ms then pull RESET_N
*/
gpio_set_level(GPIO_USB_C0_PWR_EN_L, 0);
hook_call_deferred(&deferred_reset_pd_mcu_data, 10*MSEC);
break;
case 2:
/*
* PWR_EN_L low, RST high
* leave reset state
*/
gpio_set_level(GPIO_USB_C0_RST, 0);
break;
}
}
static void board_power_on_pd_mcu(void)
{
/* check if power is already on */
if (!gpio_get_level(GPIO_USB_C0_PWR_EN_L))
return;
gpio_set_level(GPIO_USB_C0_EXTPWR_EN, 1);
hook_call_deferred(&deferred_reset_pd_mcu_data, 1*MSEC);
}
void board_reset_pd_mcu(void)
{
/* enable port controller's cable detection before reset */
anx7688_enable_cable_detection(0);
/* wait for 10ms, then start port controller's reset sequence */
hook_call_deferred(&deferred_reset_pd_mcu_data, 10*MSEC);
}
int command_pd_reset(int argc, char **argv)
{
board_reset_pd_mcu();
return EC_SUCCESS;
}
DECLARE_CONSOLE_COMMAND(resetpd, command_pd_reset,
"",
"Reset PD IC");
/**
* There is a level shift for AC_OK & LID_OPEN signal between AP & EC,
* disable it (drive high) when AP is off, otherwise enable it (drive low).
*/
static void board_extpower_buffer_to_soc(void)
{
/* Drive high when AP is off (G3), else drive low */
gpio_set_level(GPIO_LEVEL_SHIFT_EN_L,
chipset_in_state(CHIPSET_STATE_HARD_OFF) ? 1 : 0);
}
/* Initialize board. */
static void board_init(void)
{
/* Enable Level shift of AC_OK & LID_OPEN signals */
board_extpower_buffer_to_soc();
/* Enable rev1 testing GPIOs */
gpio_set_level(GPIO_SYSTEM_POWER_H, 1);
/* Enable PD MCU interrupt */
gpio_enable_interrupt(GPIO_PD_MCU_INT);
/* Enable BC 1.2 */
gpio_enable_interrupt(GPIO_BC12_CABLE_INT);
/* Check if typeC is already connected, and do 7688 power on flow */
board_power_on_pd_mcu();
/* Update VBUS supplier */
usb_charger_vbus_change(0, !gpio_get_level(GPIO_USB_C0_VBUS_WAKE_L));
/* Remap SPI2 to DMA channels 6 and 7 */
REG32(STM32_DMA1_BASE + 0xa8) |= (1 << 20) | (1 << 21) |
(1 << 24) | (1 << 25);
}
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
/**
* Set active charge port -- only one port can active at a time.
*
* @param charge_port Charge port to enable.
*
* Return EC_SUCCESS if charge port is accepted and made active.
* EC_ERROR_* otherwise.
*/
int board_set_active_charge_port(int charge_port)
{
/* charge port is a physical port */
int is_real_port = (charge_port >= 0 &&
charge_port < CONFIG_USB_PD_PORT_COUNT);
/* check if we are source VBUS on the port */
int source = gpio_get_level(GPIO_USB_C0_5V_EN);
if (is_real_port && source) {
CPRINTF("Skip enable p%d", charge_port);
return EC_ERROR_INVAL;
}
CPRINTF("New chg p%d", charge_port);
if (charge_port == CHARGE_PORT_NONE) {
/* Disable charging port */
gpio_set_level(GPIO_USB_C0_CHARGE_L, 1);
} else {
/* Enable charging port */
gpio_set_level(GPIO_USB_C0_CHARGE_L, 0);
}
return EC_SUCCESS;
}
/**
* Set the charge limit based upon desired maximum.
*
* @param port Port number.
* @param supplier Charge supplier type.
* @param charge_ma Desired charge limit (mA).
* @param charge_mv Negotiated charge voltage (mV).
*/
void board_set_charge_limit(int port, int supplier, int charge_ma,
int max_ma, int charge_mv)
{
/* Limit input current 95% ratio on rowan board for safety */
charge_ma = (charge_ma * 95) / 100;
charge_set_input_current_limit(MAX(charge_ma,
CONFIG_CHARGER_INPUT_CURRENT), charge_mv);
pd_send_host_event(PD_EVENT_POWER_CHANGE);
}
/**
* Set AP reset.
* AP_RESET_L (PC3, CPU_WARM_RESET_L) is connected to PMIC SYSRSTB
*/
void board_set_ap_reset(int asserted)
{
/* Signal is active-low */
CPRINTS("ap warm reset(%d)", asserted);
gpio_set_level(GPIO_AP_RESET_L, !asserted);
}
#ifdef CONFIG_TEMP_SENSOR_TMP432
static void tmp432_set_power_deferred(void)
{
/* Shut tmp432 down if not in S0 && no external power */
if (!extpower_is_present() && !chipset_in_state(CHIPSET_STATE_ON)) {
if (EC_SUCCESS != tmp432_set_power(TMP432_POWER_OFF))
CPRINTS("ERROR: Can't shutdown TMP432.");
return;
}
/* else, turn it on. */
if (EC_SUCCESS != tmp432_set_power(TMP432_POWER_ON))
CPRINTS("ERROR: Can't turn on TMP432.");
}
DECLARE_DEFERRED(tmp432_set_power_deferred);
#endif
/**
* Hook of AC change. turn on/off tmp432 depends on AP & AC status.
*/
static void board_extpower(void)
{
board_extpower_buffer_to_soc();
#ifdef CONFIG_TEMP_SENSOR_TMP432
hook_call_deferred(&tmp432_set_power_deferred_data, 0);
#endif
}
DECLARE_HOOK(HOOK_AC_CHANGE, board_extpower, HOOK_PRIO_DEFAULT);
/* Called on AP S5 -> S3 transition, and before HOOK_CHIPSET_STARTUP */
static void board_chipset_pre_init(void)
{
/* Enable level shift of AC_OK when power on */
board_extpower_buffer_to_soc();
/* Enable SPI for BMI160 */
gpio_config_module(MODULE_SPI_MASTER, 1);
/* Set all four SPI pins to high speed */
/* pins B12/B13/B14/B15 */
STM32_GPIO_OSPEEDR(GPIO_B) |= 0xff000000;
/* Enable clocks to SPI2 module */
STM32_RCC_APB1ENR |= STM32_RCC_PB1_SPI2;
/* Reset SPI2 */
spi_enable(CONFIG_SPI_ACCEL_PORT, 0);
STM32_RCC_APB1RSTR |= STM32_RCC_PB1_SPI2;
STM32_RCC_APB1RSTR &= ~STM32_RCC_PB1_SPI2;
spi_enable(CONFIG_SPI_ACCEL_PORT, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_PRE_INIT, board_chipset_pre_init, HOOK_PRIO_DEFAULT);
/* Called on AP S3 -> S5 transition */
static void board_chipset_shutdown(void)
{
/* Disable level shift to SoC when shutting down */
gpio_set_level(GPIO_LEVEL_SHIFT_EN_L, 1);
spi_enable(CONFIG_SPI_ACCEL_PORT, 0);
/* Disable clocks to SPI2 module */
STM32_RCC_APB1ENR &= ~STM32_RCC_PB1_SPI2;
gpio_config_module(MODULE_SPI_MASTER, 0);
/*
* Calling gpio_config_module sets disabled alternate function pins to
* GPIO_INPUT. But to prevent leakage we want to set GPIO_OUT_LOW
*/
gpio_set_flags_by_mask(GPIO_B, 0xf000, GPIO_OUT_LOW);
}
DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, board_chipset_shutdown, HOOK_PRIO_DEFAULT);
/* Called on AP S3 -> S0 transition */
static void board_chipset_resume(void)
{
#ifdef CONFIG_TEMP_SENSOR_TMP432
hook_call_deferred(&tmp432_set_power_deferred_data, 0);
#endif
}
DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT);
/* Called on AP S0 -> S3 transition */
static void board_chipset_suspend(void)
{
#ifdef CONFIG_TEMP_SENSOR_TMP432
hook_call_deferred(&tmp432_set_power_deferred_data, 0);
#endif
}
DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT);
/* ALS instances. Must be in same order as enum als_id. */
struct als_t als[] = {
{"ISL", isl29035_init, isl29035_read_lux, 5},
};
BUILD_ASSERT(ARRAY_SIZE(als) == ALS_COUNT);
/* Motion sensors */
/* Mutexes */
static struct mutex g_lid_mutex;
/* Matrix to rotate accelerometer into standard reference frame */
const matrix_3x3_t lid_standard_ref = {
{ FLOAT_TO_FP(-1), 0, 0},
{ 0, FLOAT_TO_FP(-1), 0},
{ 0, 0, FLOAT_TO_FP(1)}
};
static struct bmi160_drv_data_t g_bmi160_data;
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.
*/
{.name = "Lid Accel",
.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 = CONFIG_SPI_ACCEL_PORT,
.addr = BMI160_SET_SPI_ADDRESS(CONFIG_SPI_ACCEL_PORT),
.rot_standard_ref = &lid_standard_ref,
.default_range = 2, /* g, enough for laptop. */
.min_frequency = BMI160_ACCEL_MIN_FREQ,
.max_frequency = BMI160_ACCEL_MAX_FREQ,
.config = {
/* AP: by default use EC settings */
[SENSOR_CONFIG_AP] = {
.odr = 0,
.ec_rate = 0,
},
/* Sensor on in S0 for Chrome screen orientation */
[SENSOR_CONFIG_EC_S0] = {
.odr = 10000 | ROUND_UP_FLAG,
.ec_rate = 100 * MSEC,
},
/* Sensor off in S3/S5 */
[SENSOR_CONFIG_EC_S3] = {
.odr = 0,
.ec_rate = 0
},
/* Sensor off in S3/S5 */
[SENSOR_CONFIG_EC_S5] = {
.odr = 0,
.ec_rate = 0
},
},
},
{.name = "Lid 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 = CONFIG_SPI_ACCEL_PORT,
.addr = BMI160_SET_SPI_ADDRESS(CONFIG_SPI_ACCEL_PORT),
.default_range = 1000, /* dps */
.rot_standard_ref = &lid_standard_ref,
.min_frequency = BMI160_GYRO_MIN_FREQ,
.max_frequency = BMI160_GYRO_MAX_FREQ,
.config = {
/* AP: by default shutdown all sensors */
[SENSOR_CONFIG_AP] = {
.odr = 0,
.ec_rate = 0,
},
/* Sensor off in S0 by default */
[SENSOR_CONFIG_EC_S0] = {
.odr = 0,
.ec_rate = 0,
},
/* Sensor off in S3/S5 */
[SENSOR_CONFIG_EC_S3] = {
.odr = 0,
.ec_rate = 0,
},
/* Sensor off in S3/S5 */
[SENSOR_CONFIG_EC_S5] = {
.odr = 0,
.ec_rate = 0,
},
},
},
};
const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
uint16_t tcpc_get_alert_status(void)
{
return gpio_get_level(GPIO_PD_MCU_INT) ? PD_STATUS_TCPC_ALERT_0 : 0;
}
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