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chrome-ec/board/reef/board.c

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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.
*/
/* Reef board-specific configuration */
#include "adc.h"
#include "adc_chip.h"
#include "button.h"
#include "charge_manager.h"
#include "charge_ramp.h"
#include "charge_state.h"
#include "charger.h"
#include "chipset.h"
#include "console.h"
#include "driver/als_opt3001.h"
#include "driver/accel_kionix.h"
#include "driver/accel_kx022.h"
#include "driver/accelgyro_bmi160.h"
#include "driver/baro_bmp280.h"
#include "driver/charger/bd9995x.h"
#include "driver/tcpm/anx74xx.h"
#include "driver/tcpm/ps8xxx.h"
#include "driver/tcpm/tcpci.h"
#include "driver/tcpm/tcpm.h"
#include "extpower.h"
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
#include "i2c.h"
#include "keyboard_scan.h"
#include "lid_angle.h"
#include "lid_switch.h"
#include "math_util.h"
#include "motion_sense.h"
#include "motion_lid.h"
#include "power.h"
#include "power_button.h"
#include "pwm.h"
#include "pwm_chip.h"
#include "spi.h"
#include "switch.h"
#include "system.h"
#include "tablet_mode.h"
#include "task.h"
#include "temp_sensor.h"
#include "thermistor.h"
#include "timer.h"
#include "uart.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)
#define IN_ALL_SYS_PG POWER_SIGNAL_MASK(X86_ALL_SYS_PG)
#define IN_PGOOD_PP3300 POWER_SIGNAL_MASK(X86_PGOOD_PP3300)
#define IN_PGOOD_PP5000 POWER_SIGNAL_MASK(X86_PGOOD_PP5000)
#define USB_PD_PORT_ANX74XX 0
#define USB_PD_PORT_PS8751 1
static void tcpc_alert_event(enum gpio_signal signal)
{
int port = -1;
switch (signal) {
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);
}
#ifdef CONFIG_USB_PD_TCPC_LOW_POWER
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_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);
void anx74xx_cable_det_interrupt(enum gpio_signal signal)
{
/* debounce for 2 msec */
hook_call_deferred(&anx74xx_cable_det_handler_data, (2 * MSEC));
}
#endif
/*
* enable_input_devices() is called by the tablet_mode ISR, but changes the
* state of GPIOs, so its definition must reside after including gpio_list.
* Use DECLARE_DEFERRED to generate enable_input_devices_data.
*/
static void enable_input_devices(void);
DECLARE_DEFERRED(enable_input_devices);
#define LID_DEBOUNCE_US (30 * MSEC) /* Debounce time for lid switch */
void tablet_mode_interrupt(enum gpio_signal signal)
{
hook_call_deferred(&enable_input_devices_data, LID_DEBOUNCE_US);
}
#include "gpio_list.h"
/* ADC channels */
const struct adc_t adc_channels[] = {
/* Vfs = Vref = 2.816V, 10-bit unsigned reading */
[ADC_TEMP_SENSOR_CHARGER] = {
"CHARGER", NPCX_ADC_CH0, ADC_MAX_VOLT, ADC_READ_MAX + 1, 0
},
[ADC_TEMP_SENSOR_AMB] = {
"AMBIENT", NPCX_ADC_CH1, ADC_MAX_VOLT, ADC_READ_MAX + 1, 0
},
[ADC_BOARD_ID] = {
"BRD_ID", NPCX_ADC_CH2, ADC_MAX_VOLT, ADC_READ_MAX + 1, 0
},
};
BUILD_ASSERT(ARRAY_SIZE(adc_channels) == ADC_CH_COUNT);
/* PWM channels. Must be in the exactly same order as in enum pwm_channel. */
const struct pwm_t pwm_channels[] = {
[PWM_CH_LED_GREEN] = { 2, PWM_CONFIG_DSLEEP, 100 },
[PWM_CH_LED_RED] = { 3, PWM_CONFIG_DSLEEP, 100 },
};
BUILD_ASSERT(ARRAY_SIZE(pwm_channels) == PWM_CH_COUNT);
const struct i2c_port_t i2c_ports[] = {
{"tcpc0", NPCX_I2C_PORT0_0, 400,
GPIO_EC_I2C_USB_C0_PD_SCL, GPIO_EC_I2C_USB_C0_PD_SDA},
{"tcpc1", NPCX_I2C_PORT0_1, 400,
GPIO_EC_I2C_USB_C1_PD_SCL, GPIO_EC_I2C_USB_C1_PD_SDA},
{"accelgyro", I2C_PORT_GYRO, 400,
GPIO_EC_I2C_GYRO_SCL, GPIO_EC_I2C_GYRO_SDA},
{"sensors", NPCX_I2C_PORT2, 400,
GPIO_EC_I2C_SENSOR_SCL, GPIO_EC_I2C_SENSOR_SDA},
{"batt", NPCX_I2C_PORT3, 100,
GPIO_EC_I2C_POWER_SCL, GPIO_EC_I2C_POWER_SDA},
};
const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
#ifdef CONFIG_CMD_I2C_STRESS_TEST
struct i2c_stress_test i2c_stress_tests[] = {
/* NPCX_I2C_PORT0_0 */
#ifdef CONFIG_CMD_I2C_STRESS_TEST_TCPC
{
.port = NPCX_I2C_PORT0_0,
.addr_flags = ANX74XX_I2C_ADDR1_FLAGS,
.i2c_test = &anx74xx_i2c_stress_test_dev,
},
#endif
/* NPCX_I2C_PORT0_1 */
#ifdef CONFIG_CMD_I2C_STRESS_TEST_TCPC
{
.port = NPCX_I2C_PORT0_1,
.addr_flags = PS8751_I2C_ADDR1_FLAGS,
.i2c_test = &ps8xxx_i2c_stress_test_dev,
},
#endif
/* NPCX_I2C_PORT1 */
#ifdef CONFIG_CMD_I2C_STRESS_TEST_ACCEL
{
.port = I2C_PORT_GYRO,
.addr_flags = BMI160_ADDR0_FLAGS,
.i2c_test = &bmi160_i2c_stress_test_dev,
},
#endif
/* NPCX_I2C_PORT2 */
#ifdef CONFIG_CMD_I2C_STRESS_TEST_ACCEL
{
.port = I2C_PORT_BARO,
.addr_flags = BMP280_I2C_ADDRESS1_FLAGS,
.i2c_test = &bmp280_i2c_stress_test_dev,
},
{
.port = I2C_PORT_LID_ACCEL,
.addr_flags = KX022_ADDR1_FLAGS,
.i2c_test = &kionix_i2c_stress_test_dev,
},
#endif
#ifdef CONFIG_CMD_I2C_STRESS_TEST_ALS
{
.port = I2C_PORT_ALS,
.addr_flags = OPT3001_I2C_ADDR1_FLAGS,
.i2c_test = &opt3001_i2c_stress_test_dev,
},
#endif
/* NPCX_I2C_PORT3 */
#ifdef CONFIG_CMD_I2C_STRESS_TEST_BATTERY
{
.i2c_test = &battery_i2c_stress_test_dev,
},
#endif
#ifdef CONFIG_CMD_I2C_STRESS_TEST_CHARGER
{
.i2c_test = &bd9995x_i2c_stress_test_dev,
},
#endif
};
const int i2c_test_dev_used = ARRAY_SIZE(i2c_stress_tests);
#endif /* CONFIG_CMD_I2C_STRESS_TEST */
const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = {
[USB_PD_PORT_ANX74XX] = {
.bus_type = EC_BUS_TYPE_I2C,
.i2c_info = {
.port = NPCX_I2C_PORT0_0,
.addr_flags = ANX74XX_I2C_ADDR1_FLAGS,
},
.drv = &anx74xx_tcpm_drv,
},
[USB_PD_PORT_PS8751] = {
.bus_type = EC_BUS_TYPE_I2C,
.i2c_info = {
.port = NPCX_I2C_PORT0_1,
.addr_flags = PS8751_I2C_ADDR1_FLAGS,
},
.drv = &ps8xxx_tcpm_drv,
},
};
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_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;
}
const enum gpio_signal hibernate_wake_pins[] = {
GPIO_AC_PRESENT,
GPIO_LID_OPEN,
GPIO_POWER_BUTTON_L,
};
const int hibernate_wake_pins_used = ARRAY_SIZE(hibernate_wake_pins);
static int ps8751_tune_mux(int port)
{
/* 0x98 sets lower EQ of DP port (4.5db) */
mux_write(port, PS8XXX_REG_MUX_DP_EQ_CONFIGURATION, 0x98);
return EC_SUCCESS;
}
struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = {
[USB_PD_PORT_ANX74XX] = {
.driver = &anx74xx_tcpm_usb_mux_driver,
.hpd_update = &anx74xx_tcpc_update_hpd_status,
},
[USB_PD_PORT_PS8751] = {
.driver = &tcpci_tcpm_usb_mux_driver,
.hpd_update = &ps8xxx_tcpc_update_hpd_status,
.board_init = &ps8751_tune_mux,
}
};
const int usb_port_enable[CONFIG_USB_PORT_POWER_SMART_PORT_COUNT] = {
GPIO_USB1_ENABLE,
};
/**
* 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_ANX74XX)
return;
switch (mode) {
case ANX74XX_NORMAL_MODE:
gpio_set_level(GPIO_EN_USB_TCPC_PWR, 1);
msleep(ANX74XX_PWR_H_RST_H_DELAY_MS);
gpio_set_level(GPIO_USB_C0_PD_RST_L, 1);
break;
case ANX74XX_STANDBY_MODE:
gpio_set_level(GPIO_USB_C0_PD_RST_L, 0);
msleep(ANX74XX_RST_L_PWR_L_DELAY_MS);
gpio_set_level(GPIO_EN_USB_TCPC_PWR, 0);
msleep(ANX74XX_PWR_L_PWR_H_DELAY_MS);
break;
default:
break;
}
}
/**
* Reset all system PD/TCPC MCUs -- currently only called from
* handle_pending_reboot() in common/power.c just before hard
* resetting the system. This logic is likely not needed as the
* PP3300_A rail should be dropped on EC reset.
*/
void board_reset_pd_mcu(void)
{
/* Assert reset to TCPC1 (ps8751) */
gpio_set_level(GPIO_USB_C1_PD_RST_ODL, 0);
/* Assert reset to TCPC0 (anx3429) */
gpio_set_level(GPIO_USB_C0_PD_RST_L, 0);
/* TCPC1 (ps8751) requires 1ms reset down assertion */
msleep(MAX(1, ANX74XX_RST_L_PWR_L_DELAY_MS));
/* Deassert reset to TCPC1 */
gpio_set_level(GPIO_USB_C1_PD_RST_ODL, 1);
/* Disable TCPC0 power */
gpio_set_level(GPIO_EN_USB_TCPC_PWR, 0);
/*
* anx3429 requires 10ms reset/power down assertion
*/
msleep(ANX74XX_PWR_L_PWR_H_DELAY_MS);
board_set_tcpc_power_mode(USB_PD_PORT_ANX74XX, 1);
}
void board_tcpc_init(void)
{
int port, reg;
/* Only reset TCPC if not sysjump */
if (!system_jumped_to_this_image())
board_reset_pd_mcu();
/*
* TODO: Remove when Reef is updated with PS8751 A3.
*
* Force PS8751 A2 to wake from low power mode.
* If PS8751 remains in low power mode after sysjump,
* TCPM_INIT will fail due to not able to access PS8751.
*
* NOTE: PS8751 A3 will wake on any I2C access.
*/
i2c_read8(NPCX_I2C_PORT0_1, 0x08, 0xA0, &reg);
/* Enable TCPC0 interrupt */
gpio_enable_interrupt(GPIO_USB_C0_PD_INT_ODL);
/* Enable TCPC1 interrupt */
gpio_enable_interrupt(GPIO_USB_C1_PD_INT_ODL);
#ifdef CONFIG_USB_PD_TCPC_LOW_POWER
/* Enable CABLE_DET interrupt for ANX3429 wake from standby */
gpio_enable_interrupt(GPIO_USB_C0_CABLE_DET);
#endif
/*
* 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);
const struct temp_sensor_t temp_sensors[] = {
/* FIXME(dhendrix): tweak action_delay_sec */
[TEMP_SENSOR_BATTERY] = {.name = "Battery",
.type = TEMP_SENSOR_TYPE_BATTERY,
.read = charge_get_battery_temp,
.idx = 0,
.action_delay_sec = 1},
[TEMP_SENSOR_AMBIENT] = {.name = "Ambient",
.type = TEMP_SENSOR_TYPE_BOARD,
.read = get_temp_3v3_51k1_47k_4050b,
.idx = ADC_TEMP_SENSOR_AMB,
.action_delay_sec = 5},
[TEMP_SENSOR_CHARGER] = {.name = "Charger",
.type = TEMP_SENSOR_TYPE_BOARD,
.read = get_temp_3v3_13k7_47k_4050b,
.idx = ADC_TEMP_SENSOR_CHARGER,
.action_delay_sec = 1},
};
BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
/* Called by APL power state machine when transitioning from G3 to S5 */
void chipset_pre_init_callback(void)
{
/*
* No need to re-init PMIC since settings are sticky across sysjump.
* However, be sure to check that PMIC is already enabled. If it is
* then there's no need to re-sequence the PMIC.
*/
if (system_jumped_to_this_image() && gpio_get_level(GPIO_PMIC_EN))
return;
/* Enable PP5000 before PP3300 due to NFC: chrome-os-partner:50807 */
gpio_set_level(GPIO_EN_PP5000, 1);
while (!gpio_get_level(GPIO_PP5000_PG))
;
/*
* To prevent SLP glitches, PMIC_EN (V5A_EN) should be enabled
* at the same time as PP3300 (chrome-os-partner:51323).
*/
/* Enable 3.3V rail */
gpio_set_level(GPIO_EN_PP3300, 1);
while (!gpio_get_level(GPIO_PP3300_PG))
;
/* Enable PMIC */
gpio_set_level(GPIO_PMIC_EN, 1);
}
static void board_set_tablet_mode(void)
{
tablet_set_mode(!gpio_get_level(GPIO_TABLET_MODE_L));
}
/* Initialize board. */
static void board_init(void)
{
/* Ensure tablet mode is initialized according to the hardware state
* so that the cached state reflects reality. */
board_set_tablet_mode();
gpio_enable_interrupt(GPIO_TABLET_MODE_L);
/* Enable charger interrupts */
gpio_enable_interrupt(GPIO_CHARGER_INT_L);
/* Enable Gyro interrupts */
gpio_enable_interrupt(GPIO_BASE_SIXAXIS_INT_L);
}
/* PP3300 needs to be enabled before TCPC init hooks */
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_FIRST);
int pd_snk_is_vbus_provided(int port)
{
if (port != 0 && port != 1)
panic("Invalid charge port\n");
return bd9995x_is_vbus_provided(port);
}
/**
* Set active charge port -- only one port can be active at a time.
*
* @param charge_port Charge port to enable.
*
* Returns EC_SUCCESS if charge port is accepted and made active,
* EC_ERROR_* otherwise.
*/
int board_set_active_charge_port(int charge_port)
{
enum bd9995x_charge_port bd9995x_port;
int bd9995x_port_select = 1;
switch (charge_port) {
case USB_PD_PORT_ANX74XX:
case USB_PD_PORT_PS8751:
/* Don't charge from a source port */
if (board_vbus_source_enabled(charge_port))
return -1;
bd9995x_port = charge_port;
break;
case CHARGE_PORT_NONE:
bd9995x_port_select = 0;
bd9995x_port = BD9995X_CHARGE_PORT_BOTH;
/*
* To avoid inrush current from the external charger, enable
* discharge on AC till the new charger is detected and
* charge detect delay has passed.
*/
if (charge_get_percent() > 2)
charger_discharge_on_ac(1);
break;
default:
panic("Invalid charge port\n");
break;
}
CPRINTS("New chg p%d", charge_port);
return bd9995x_select_input_port(bd9995x_port, bd9995x_port_select);
}
/**
* 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)
{
/* Enable charging trigger by BC1.2 detection */
int bc12_enable = (supplier == CHARGE_SUPPLIER_BC12_CDP ||
supplier == CHARGE_SUPPLIER_BC12_DCP ||
supplier == CHARGE_SUPPLIER_BC12_SDP ||
supplier == CHARGE_SUPPLIER_OTHER);
if (bd9995x_bc12_enable_charging(port, bc12_enable))
return;
charge_ma = (charge_ma * 95) / 100;
charge_set_input_current_limit(MAX(charge_ma,
CONFIG_CHARGER_INPUT_CURRENT), charge_mv);
}
/**
* Return if VBUS is sagging too low
*/
int board_is_vbus_too_low(int port, enum chg_ramp_vbus_state ramp_state)
{
return charger_get_vbus_voltage(port) < BD9995X_BC12_MIN_VOLTAGE;
}
static void enable_input_devices(void)
{
/* We need to turn on tablet mode for motion sense */
board_set_tablet_mode();
/* Then, we disable peripherals only when the lid reaches 360 position.
* (It's probably already disabled by motion_sense_task.)
* We deliberately do not enable peripherals when the lid is leaving
* 360 position. Instead, we let motion_sense_task enable it once it
* reaches laptop zone (180 or less). */
if (tablet_get_mode())
lid_angle_peripheral_enable(0);
}
/* Enable or disable input devices, based on chipset state and tablet mode */
#ifndef TEST_BUILD
void lid_angle_peripheral_enable(int enable)
{
/* If the lid is in 360 position, ignore the lid angle,
* which might be faulty. Disable keyboard.
*/
if (tablet_get_mode() || chipset_in_state(CHIPSET_STATE_ANY_OFF))
enable = 0;
keyboard_scan_enable(enable, KB_SCAN_DISABLE_LID_ANGLE);
}
#endif
/* Called on AP S5 -> S3 transition */
static void board_chipset_startup(void)
{
/* Enable USB-A port. */
gpio_set_level(GPIO_USB1_ENABLE, 1);
/* Enable Trackpad */
gpio_set_level(GPIO_EN_P3300_TRACKPAD_ODL, 0);
hook_call_deferred(&enable_input_devices_data, 0);
}
DECLARE_HOOK(HOOK_CHIPSET_STARTUP, board_chipset_startup, HOOK_PRIO_DEFAULT);
/* Called on AP S3 -> S5 transition */
static void board_chipset_shutdown(void)
{
/* Disable USB-A port. */
gpio_set_level(GPIO_USB1_ENABLE, 0);
/* Disable Trackpad */
gpio_set_level(GPIO_EN_P3300_TRACKPAD_ODL, 1);
hook_call_deferred(&enable_input_devices_data, 0);
/* FIXME(dhendrix): Drive USB_PD_RST_ODL low to prevent
leakage? (see comment in schematic) */
}
DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, board_chipset_shutdown, HOOK_PRIO_DEFAULT);
/* FIXME(dhendrix): Add CHIPSET_RESUME and CHIPSET_SUSPEND
hooks to enable/disable sensors? */
/* Called on AP S3 -> S0 transition */
static void board_chipset_resume(void)
{
gpio_set_level(GPIO_ENABLE_BACKLIGHT, 1);
}
DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_chipset_resume, HOOK_PRIO_DEFAULT);
/* Called on AP S0 -> S3 transition */
static void board_chipset_suspend(void)
{
gpio_set_level(GPIO_ENABLE_BACKLIGHT, 0);
}
DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_chipset_suspend, HOOK_PRIO_DEFAULT);
/*
* FIXME(dhendrix): Weak symbol hack until we can get a better solution for
* both Amenia and Reef.
*/
void chipset_do_shutdown(void)
{
/* Disable PMIC */
gpio_set_level(GPIO_PMIC_EN, 0);
/*Disable 3.3V rail */
gpio_set_level(GPIO_EN_PP3300, 0);
while (gpio_get_level(GPIO_PP3300_PG))
;
/*Disable 5V rail */
gpio_set_level(GPIO_EN_PP5000, 0);
while (gpio_get_level(GPIO_PP5000_PG))
;
}
void board_hibernate_late(void)
{
int i;
const uint32_t hibernate_pins[][2] = {
/* Turn off LEDs in hibernate */
{GPIO_BAT_LED_BLUE, GPIO_INPUT | GPIO_PULL_UP},
{GPIO_BAT_LED_AMBER, GPIO_INPUT | GPIO_PULL_UP},
{GPIO_LID_OPEN, GPIO_INT_RISING | GPIO_PULL_DOWN},
/*
* BD99956 handles charge input automatically. We'll disable
* charge output in hibernate. Charger will assert ACOK_OD
* when VBUS or VCC are plugged in.
*/
{GPIO_USB_C0_5V_EN, GPIO_INPUT | GPIO_PULL_DOWN},
{GPIO_USB_C1_5V_EN, GPIO_INPUT | GPIO_PULL_DOWN},
};
/* Change GPIOs' state in hibernate for better power consumption */
for (i = 0; i < ARRAY_SIZE(hibernate_pins); ++i)
gpio_set_flags(hibernate_pins[i][0], hibernate_pins[i][1]);
gpio_config_module(MODULE_KEYBOARD_SCAN, 0);
/*
* Calling gpio_config_module sets disabled alternate function pins to
* GPIO_INPUT. But to prevent keypresses causing leakage currents
* while hibernating we want to enable GPIO_PULL_UP as well.
*/
gpio_set_flags_by_mask(0x2, 0x03, GPIO_INPUT | GPIO_PULL_UP);
gpio_set_flags_by_mask(0x1, 0x7F, GPIO_INPUT | GPIO_PULL_UP);
gpio_set_flags_by_mask(0x0, 0xE0, GPIO_INPUT | GPIO_PULL_UP);
/* KBD_KSO2 needs to have a pull-down enabled instead of pull-up */
gpio_set_flags_by_mask(0x1, 0x80, GPIO_INPUT | GPIO_PULL_DOWN);
}
/* Motion sensors */
/* Mutexes */
static struct mutex g_lid_mutex;
static struct mutex g_base_mutex;
/* Matrix to rotate accelrator into standard reference frame */
const mat33_fp_t base_standard_ref = {
{ 0, FLOAT_TO_FP(-1), 0},
{ FLOAT_TO_FP(1), 0, 0},
{ 0, 0, FLOAT_TO_FP(1)}
};
const mat33_fp_t mag_standard_ref = {
{ FLOAT_TO_FP(-1), 0, 0},
{ 0, FLOAT_TO_FP(1), 0},
{ 0, 0, FLOAT_TO_FP(-1)}
};
/* sensor private data */
static struct kionix_accel_data g_kx022_data;
static struct bmi160_drv_data_t g_bmi160_data;
static struct bmp280_drv_data_t bmp280_drv_data;
static struct opt3001_drv_data_t g_opt3001_data = {
.scale = 1,
.uscale = 0,
.offset = 0,
};
/* FIXME(dhendrix): Copied from Amenia, probably need to tweak for Reef */
struct motion_sensor_t motion_sensors[] = {
[LID_ACCEL] = {
.name = "Lid Accel",
.active_mask = SENSOR_ACTIVE_S0_S3,
.chip = MOTIONSENSE_CHIP_KX022,
.type = MOTIONSENSE_TYPE_ACCEL,
.location = MOTIONSENSE_LOC_LID,
.drv = &kionix_accel_drv,
.mutex = &g_lid_mutex,
.drv_data = &g_kx022_data,
.port = I2C_PORT_LID_ACCEL,
.i2c_spi_addr_flags = KX022_ADDR1_FLAGS,
.rot_standard_ref = NULL, /* Identity matrix. */
.default_range = 2, /* g, enough for laptop. */
.min_frequency = KX022_ACCEL_MIN_FREQ,
.max_frequency = KX022_ACCEL_MAX_FREQ,
.config = {
/* EC use accel for angle detection */
[SENSOR_CONFIG_EC_S0] = {
.odr = 10000 | ROUND_UP_FLAG,
},
/* Sensor on for lid angle detection */
[SENSOR_CONFIG_EC_S3] = {
.odr = 10000 | ROUND_UP_FLAG,
},
},
},
[BASE_ACCEL] = {
.name = "Base Accel",
.active_mask = SENSOR_ACTIVE_S0_S3,
.chip = MOTIONSENSE_CHIP_BMI160,
.type = MOTIONSENSE_TYPE_ACCEL,
.location = MOTIONSENSE_LOC_BASE,
.drv = &bmi160_drv,
.mutex = &g_base_mutex,
.drv_data = &g_bmi160_data,
.port = I2C_PORT_GYRO,
.i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
.rot_standard_ref = &base_standard_ref,
.default_range = 2, /* g, enough for laptop. */
.min_frequency = BMI160_ACCEL_MIN_FREQ,
.max_frequency = BMI160_ACCEL_MAX_FREQ,
.config = {
/* EC use accel for angle detection */
[SENSOR_CONFIG_EC_S0] = {
.odr = 10000 | ROUND_UP_FLAG,
.ec_rate = 100 * MSEC,
},
/* Sensor on for lid angle detection */
[SENSOR_CONFIG_EC_S3] = {
.odr = 10000 | ROUND_UP_FLAG,
.ec_rate = 100 * MSEC,
},
},
},
[BASE_GYRO] = {
.name = "Base Gyro",
.active_mask = SENSOR_ACTIVE_S0,
.chip = MOTIONSENSE_CHIP_BMI160,
.type = MOTIONSENSE_TYPE_GYRO,
.location = MOTIONSENSE_LOC_BASE,
.drv = &bmi160_drv,
.mutex = &g_base_mutex,
.drv_data = &g_bmi160_data,
.port = I2C_PORT_GYRO,
.i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
.default_range = 1000, /* dps */
.rot_standard_ref = &base_standard_ref,
.min_frequency = BMI160_GYRO_MIN_FREQ,
.max_frequency = BMI160_GYRO_MAX_FREQ,
},
[BASE_MAG] = {
.name = "Base Mag",
.active_mask = SENSOR_ACTIVE_S0,
.chip = MOTIONSENSE_CHIP_BMI160,
.type = MOTIONSENSE_TYPE_MAG,
.location = MOTIONSENSE_LOC_BASE,
.drv = &bmi160_drv,
.mutex = &g_base_mutex,
.drv_data = &g_bmi160_data,
.port = I2C_PORT_GYRO,
.i2c_spi_addr_flags = BMI160_ADDR0_FLAGS,
.default_range = BIT(11), /* 16LSB / uT, fixed */
.rot_standard_ref = &mag_standard_ref,
.min_frequency = BMM150_MAG_MIN_FREQ,
.max_frequency = BMM150_MAG_MAX_FREQ(SPECIAL),
},
[BASE_BARO] = {
.name = "Base Baro",
.active_mask = SENSOR_ACTIVE_S0,
.chip = MOTIONSENSE_CHIP_BMP280,
.type = MOTIONSENSE_TYPE_BARO,
.location = MOTIONSENSE_LOC_BASE,
.drv = &bmp280_drv,
.drv_data = &bmp280_drv_data,
.port = I2C_PORT_BARO,
.i2c_spi_addr_flags = BMP280_I2C_ADDRESS1_FLAGS,
.default_range = BIT(18), /* 1bit = 4 Pa, 16bit ~= 2600 hPa */
.min_frequency = BMP280_BARO_MIN_FREQ,
.max_frequency = BMP280_BARO_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,
.i2c_spi_addr_flags = OPT3001_I2C_ADDR1_FLAGS,
.rot_standard_ref = NULL,
.default_range = 0x10000, /* scale = 1; uscale = 0 */
.min_frequency = OPT3001_LIGHT_MIN_FREQ,
.max_frequency = OPT3001_LIGHT_MAX_FREQ,
.config = {
[SENSOR_CONFIG_EC_S0] = {
.odr = 1000,
},
},
},
};
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);
void board_hibernate(void)
{
/*
* To support hibernate called from console commands, ectool commands
* and key sequence, shutdown the AP before hibernating.
*/
chipset_do_shutdown();
/* Added delay to allow AP to settle down */
msleep(100);
/* Enable both the VBUS & VCC ports before entering PG3 */
bd9995x_select_input_port(BD9995X_CHARGE_PORT_BOTH, 1);
/* Turn BGATE OFF for saving the power */
bd9995x_set_power_save_mode(BD9995X_PWR_SAVE_MAX);
}
struct {
enum reef_board_version version;
int thresh_mv;
} const reef_board_versions[] = {
/* Vin = 3.3V, R1 = 46.4K, R2 values listed below */
{ BOARD_VERSION_1, 328 * 1.03 }, /* 5.11 Kohm */
{ BOARD_VERSION_2, 670 * 1.03 }, /* 11.8 Kohm */
{ BOARD_VERSION_3, 1012 * 1.03 }, /* 20.5 Kohm */
{ BOARD_VERSION_4, 1357 * 1.03 }, /* 32.4 Kohm */
{ BOARD_VERSION_5, 1690 * 1.03 }, /* 48.7 Kohm */
{ BOARD_VERSION_6, 2020 * 1.03 }, /* 73.2 Kohm */
{ BOARD_VERSION_7, 2352 * 1.03 }, /* 115 Kohm */
{ BOARD_VERSION_8, 2802 * 1.03 }, /* 261 Kohm */
};
BUILD_ASSERT(ARRAY_SIZE(reef_board_versions) == BOARD_VERSION_COUNT);
int board_get_version(void)
{
static int version = BOARD_VERSION_UNKNOWN;
int mv, i;
if (version != BOARD_VERSION_UNKNOWN)
return version;
/* FIXME(dhendrix): enable ADC */
gpio_set_flags(GPIO_EC_BRD_ID_EN_ODL, GPIO_ODR_HIGH);
gpio_set_level(GPIO_EC_BRD_ID_EN_ODL, 0);
/* Wait to allow cap charge */
msleep(1);
mv = adc_read_channel(ADC_BOARD_ID);
/* FIXME(dhendrix): disable ADC */
gpio_set_level(GPIO_EC_BRD_ID_EN_ODL, 1);
gpio_set_flags(GPIO_EC_BRD_ID_EN_ODL, GPIO_INPUT);
if (mv == ADC_READ_ERROR) {
version = BOARD_VERSION_UNKNOWN;
return version;
}
for (i = 0; i < BOARD_VERSION_COUNT; i++) {
if (mv < reef_board_versions[i].thresh_mv) {
version = reef_board_versions[i].version;
break;
}
}
CPRINTS("Board version: %d", version);
return version;
}
/* Keyboard scan setting */
struct keyboard_scan_config keyscan_config = {
/*
* F3 key scan cycle completed but scan input is not
* charging to logic high when EC start scan next
* column for "T" key, so we set .output_settle_us
* to 80us from 50us.
*/
.output_settle_us = 80,
.debounce_down_us = 9 * MSEC,
.debounce_up_us = 30 * MSEC,
.scan_period_us = 3 * MSEC,
.min_post_scan_delay_us = 1000,
.poll_timeout_us = 100 * MSEC,
.actual_key_mask = {
0x14, 0xff, 0xff, 0xff, 0xff, 0xf5, 0xff,
0xa4, 0xff, 0xfe, 0x55, 0xfa, 0xca /* full set */
},
};
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