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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 "als.h"
#include "button.h"
#include "charge_manager.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/charger/bd99955.h"
#include "driver/tcpm/anx74xx.h"
#include "driver/tcpm/tcpci.h"
#include "extpower.h"
#include "gpio.h"
#include "hooks.h"
#include "host_command.h"
#include "i2c.h"
#include "keyboard_scan.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 "task.h"
#include "temp_sensor.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)
static void tcpc_alert_event(enum gpio_signal signal)
{
if (!gpio_get_level(GPIO_USB_PD_RST_ODL))
return;
#ifdef HAS_TASK_PDCMD
/* Exchange status with TCPCs */
host_command_pd_send_status(PD_CHARGE_NO_CHANGE);
#endif
}
/* Exchange status with PD MCU. */
static 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
}
/*
* 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);
void tablet_mode_interrupt(enum gpio_signal signal)
{
hook_call_deferred(&enable_input_devices_data, 0);
}
#include "gpio_list.h"
/* power signal list. Must match order of enum power_signal. */
const struct power_signal_info power_signal_list[] = {
{GPIO_RSMRST_L_PGOOD, 1, "RSMRST_L"},
{GPIO_PCH_SLP_S0_L, 1, "PMU_SLP_S0_N"},
{GPIO_PCH_SLP_S3_L, 1, "SLP_S3_DEASSERTED"},
{GPIO_PCH_SLP_S4_L, 1, "SLP_S4_DEASSERTED"},
{GPIO_SUSPWRNACK, 1, "SUSPWRNACK_DEASSERTED"},
{GPIO_ALL_SYS_PGOOD, 1, "ALL_SYS_PGOOD"},
{GPIO_PP3300_PG, 1, "PP3300_PG"},
{GPIO_PP5000_PG, 1, "PP5000_PG"},
};
BUILD_ASSERT(ARRAY_SIZE(power_signal_list) == POWER_SIGNAL_COUNT);
/* ADC channels */
const struct adc_t adc_channels[] = {
[ADC_BOARD_ID] = {"BOARD_ID", NPCX_ADC_CH2, 1, 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},
{"gyro", 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);
const struct tcpc_config_t tcpc_config[CONFIG_USB_PD_PORT_COUNT] = {
{NPCX_I2C_PORT0_0, 0x50, &anx74xx_tcpm_drv},
{NPCX_I2C_PORT0_1, 0x16, &tcpci_tcpm_drv},
};
uint16_t tcpc_get_alert_status(void)
{
uint16_t status = 0;
if (gpio_get_level(GPIO_USB_C0_PD_INT))
status |= PD_STATUS_TCPC_ALERT_0;
if (!gpio_get_level(GPIO_USB_C1_PD_INT_ODL))
status |= PD_STATUS_TCPC_ALERT_1;
return status;
}
const enum gpio_signal hibernate_wake_pins[] = {
GPIO_LID_OPEN,
GPIO_POWER_BUTTON_L,
};
const int hibernate_wake_pins_used = ARRAY_SIZE(hibernate_wake_pins);
struct usb_mux usb_muxes[CONFIG_USB_PD_PORT_COUNT] = {
{
.port_addr = 0, /* don't care / unused */
.driver = &anx74xx_tcpm_usb_mux_driver,
},
{
.port_addr = 1,
.driver = &tcpci_tcpm_usb_mux_driver,
}
};
/* called from anx74xx_set_power_mode() */
void board_set_tcpc_power_mode(int port, int mode)
{
gpio_set_level(GPIO_EN_USB_TCPC_PWR, mode);
msleep(1);
/* FIXME(dhendrix): This is also connected to the PS8751 which
* we might not want to reset just because something happened
* on the ANX3429. */
gpio_set_level(GPIO_USB_PD_RST_ODL, mode);
msleep(10);
}
/**
* Reset PD MCU -- 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)
{
gpio_set_level(GPIO_USB_PD_RST_ODL, 0);
msleep(1);
gpio_set_level(GPIO_EN_USB_TCPC_PWR, 0);
msleep(10);
gpio_set_level(GPIO_EN_USB_TCPC_PWR, 1);
msleep(1);
gpio_set_level(GPIO_USB_PD_RST_ODL, 1);
/*
* ANX7688 needed 50ms to release RESET_N, but the ANX7428 datasheet
* does not indicate such a long delay is necessary. Leave it in due
* to paranoia.
*/
msleep(50);
}
int board_get_battery_temp(int idx, int *temp_ptr)
{
/* FIXME(dhendrix): Read THERM_VAL from BD99956 and convert
Celsius to Kelvin */
*temp_ptr = 0;
return 0;
}
int board_get_charger_temp(int idx, int *temp_ptr)
{
int raw_val = adc_read_channel(NPCX_ADC_CH0);
if (raw_val < 0)
return -1;
/* FIXME(dhendrix): Add data points and calculate using CL:344781 */
*temp_ptr = 0;
return 0;
}
int board_get_ambient_temp(int idx, int *temp_ptr)
{
int raw_val = adc_read_channel(NPCX_ADC_CH1);
if (raw_val < 0)
return -1;
/* FIXME(dhendrix): Add data points and calculate using CL:344781 */
*temp_ptr = 0;
return 0;
}
const struct temp_sensor_t temp_sensors[] = {
/* FIXME(dhendrix): tweak action_delay_sec */
{"Battery", TEMP_SENSOR_TYPE_BATTERY, board_get_battery_temp, 0, 1},
{"Ambient", TEMP_SENSOR_TYPE_BOARD, board_get_ambient_temp, 0, 5},
{"Charger", TEMP_SENSOR_TYPE_BOARD, board_get_charger_temp, 0, 1},
};
BUILD_ASSERT(ARRAY_SIZE(temp_sensors) == TEMP_SENSOR_COUNT);
/*
* Thermal limits for each temp sensor. All temps are in degrees K. Must be in
* same order as enum temp_sensor_id. To always ignore any temp, use 0.
*/
struct ec_thermal_config thermal_params[] = {
/* {Twarn, Thigh, Thalt}, fan_off, fan_max */
/* FIXME(dhendrix): Implement this... */
{{0, 0, 0}, 0, 0}, /* Battery */
{{0, 0, 0}, 0, 0}, /* Ambient */
{{0, 0, 0}, 0, 0}, /* Charger */
};
BUILD_ASSERT(ARRAY_SIZE(thermal_params) == TEMP_SENSOR_COUNT);
/* ALS instances. Must be in same order as enum als_id. */
struct als_t als[] = {
/* FIXME(dhendrix): verify attenuation_factor */
{"TI", opt3001_init, opt3001_read_lux, 5},
};
BUILD_ASSERT(ARRAY_SIZE(als) == ALS_COUNT);
const struct button_config buttons[CONFIG_BUTTON_COUNT] = {
{"Volume Down", KEYBOARD_BUTTON_VOLUME_DOWN, GPIO_EC_VOLDN_BTN_L,
30 * MSEC, 0},
{"Volume Up", KEYBOARD_BUTTON_VOLUME_UP, GPIO_EC_VOLUP_BTN_L,
30 * MSEC, 0},
};
/* Called by APL power state machine when transitioning from G3 to S5 */
static void chipset_pre_init(void)
{
#if 0
/* No need to re-init PMIC since settings are sticky across sysjump */
/* TODO(dhendrix): Handle sysjump case appropriately */
if (system_jumped_to_this_image())
return;
#endif
#if 0
/* Enable PD interrupts */
gpio_enable_interrupt(GPIO_USB_C0_PD_INT);
gpio_enable_interrupt(GPIO_USB_C1_PD_INT_ODL);
/* Enable charger interrupts */
gpio_enable_interrupt(GPIO_PD_MCU_INT);
#endif
}
DECLARE_HOOK(HOOK_CHIPSET_PRE_INIT, chipset_pre_init, HOOK_PRIO_DEFAULT);
/* Initialize board. */
static void board_init(void)
{
/* FIXME: Handle tablet mode */
/* gpio_enable_interrupt(GPIO_TABLET_MODE_L); */
struct charge_port_info charge_none;
int i;
/* Initialize all BC1.2 charge suppliers to 0 */
charge_none.voltage = USB_CHARGER_VOLTAGE_MV;
charge_none.current = 0;
/* TODO: Implement BC1.2 + VBUS detection */
for (i = 0; i < CONFIG_USB_PD_PORT_COUNT; i++) {
charge_manager_update_charge(CHARGE_SUPPLIER_PROPRIETARY,
i,
&charge_none);
charge_manager_update_charge(CHARGE_SUPPLIER_BC12_CDP,
i,
&charge_none);
charge_manager_update_charge(CHARGE_SUPPLIER_BC12_DCP,
i,
&charge_none);
charge_manager_update_charge(CHARGE_SUPPLIER_BC12_SDP,
i,
&charge_none);
charge_manager_update_charge(CHARGE_SUPPLIER_OTHER,
i,
&charge_none);
charge_manager_update_charge(CHARGE_SUPPLIER_VBUS,
i,
&charge_none);
}
/*
* There are dependencies in Reef's power topology:
* 1. PP5000 must be enabled before PP3300 (chrome-os-partner:50807).
* 2. TCPC chips must be powered until we can re-factor the PD handling
* code to be aware of TCPCs being off (chrome-os-partner:53644).
* 3. To prevent SLP glitches, PMIC_EN (V5A_EN) should be enabled
* at the same time as PP3300 (chrome-os-partner:51323).
*/
/* Enable PP5000 before PP3300 due to NFC: chrome-os-partner:50807 */
gpio_set_level(GPIO_EN_PP5000, 1);
/* Enable 3.3V rail */
gpio_set_level(GPIO_EN_PP3300, 1);
while (!gpio_get_level(GPIO_PP3300_PG) ||
!gpio_get_level(GPIO_PP5000_PG))
;
/* Enable PMIC */
gpio_set_level(GPIO_V5A_EN, 1);
}
/* PP3300 needs to be enabled before TCPC init hooks */
DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_FIRST);
/**
* 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 bd99955_charge_port bd99955_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(charge_port == 0 ? GPIO_USB_C0_5V_EN :
GPIO_USB_C1_5V_EN);
if (is_real_port && source) {
CPRINTF("Skip enable p%d", charge_port);
return EC_ERROR_INVAL;
}
CPRINTS("New chg p%d", charge_port);
switch (charge_port) {
case 0:
bd99955_port = BD99955_CHARGE_PORT_VBUS;
break;
case 1:
bd99955_port = BD99955_CHARGE_PORT_VCC;
break;
case CHARGE_PORT_NONE:
bd99955_port = BD99955_CHARGE_PORT_NONE;
break;
default:
panic("Invalid charge port\n");
break;
}
return bd99955_select_input_port(bd99955_port);
}
/**
* Set the charge limit based upon desired maximum.
*
* @param port Port number.
* @param supplier Charge supplier type.
* @param charge_ma Desired charge limit (mA).
*/
void board_set_charge_limit(int port, int supplier, int charge_ma)
{
charge_set_input_current_limit(MAX(charge_ma,
CONFIG_CHARGER_INPUT_CURRENT));
}
int extpower_is_present(void)
{
return bd99955_extpower_is_present();
}
int usb_charger_port_is_sourcing_vbus(int port)
{
return gpio_get_level(port ? GPIO_USB_C1_5V_EN : GPIO_USB_C0_5V_EN);
}
/* Enable or disable input devices, based upon chipset state and tablet mode */
static void enable_input_devices(void)
{
int kb_enable = 1;
/* Disable KB if chipset is off */
if (chipset_in_state(CHIPSET_STATE_ANY_OFF))
kb_enable = 0;
keyboard_scan_enable(kb_enable, KB_SCAN_DISABLE_LID_ANGLE);
}
/* Called on AP S5 -> S3 transition */
static void board_chipset_startup(void)
{
/* Enable USB-A port. */
gpio_set_level(GPIO_EN_USB_A_5V, 1);
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_EN_USB_A_5V, 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? */
/*
* FIXME(dhendrix): Weak symbol hack until we can get a better solution for
* both Amenia and Reef.
*/
void chipset_do_shutdown(void)
{
/*
* If we shut off TCPCs the TCPC tasks will fail and spam the
* EC console with I2C errors. So for now we'll leave the TCPCs
* on which means leaving V5A_EN, PP3300, and PP5000 enabled.
*/
cprintf(CC_CHIPSET, "%s called, but not doing anything.\n", __func__);
}
void board_set_gpio_hibernate_state(void)
{
int i;
const uint32_t hibernate_pins[][2] = {
#if 0
/* Turn off LEDs in hibernate */
{GPIO_BAT_LED_BLUE, GPIO_INPUT | GPIO_PULL_UP},
{GPIO_BAT_LED_AMBER, GPIO_INPUT | GPIO_PULL_UP},
/*
* Set PD wake low so that it toggles high to generate a wake
* event once we leave hibernate.
*/
{GPIO_USB_PD_WAKE, GPIO_OUTPUT | GPIO_LOW},
#endif
/*
* In hibernate, this pin connected to GND. Set it to output
* low to eliminate the current caused by internal pull-up.
*/
/* FIXME(dhendrix): What do to with PROCHOT? */
/* {GPIO_PLATFORM_EC_PROCHOT, GPIO_OUTPUT | GPIO_LOW}, */
/*
* 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, 0xFF, GPIO_INPUT | GPIO_PULL_UP);
gpio_set_flags_by_mask(0x0, 0xE0, GPIO_INPUT | GPIO_PULL_UP);
}
/* Motion sensors */
/* Mutexes */
static struct mutex g_lid_mutex;
static struct mutex g_base_mutex;
/* Matrix to rotate accelrator into standard reference frame */
const matrix_3x3_t base_standard_ref = {
{ 0, FLOAT_TO_FP(1), 0},
{ FLOAT_TO_FP(-1), 0, 0},
{ 0, 0, FLOAT_TO_FP(1)}
};
/* KX022 private data */
struct kionix_accel_data g_kx022_data = {
.variant = KX022,
};
/* FIXME(dhendrix): Copied from Amenia, probably need to tweak for Reef */
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 = "Lid Accel",
.active_mask = SENSOR_ACTIVE_S0,
.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_ACCEL,
.addr = BMI160_ADDR0,
.rot_standard_ref = NULL, /* Identity matrix. */
.default_range = 2, /* g, enough for laptop. */
.config = {
/* AP: by default use EC settings */
[SENSOR_CONFIG_AP] = {
.odr = 10000 | ROUND_UP_FLAG,
.ec_rate = 100 * MSEC,
},
/* EC use accel for angle detection */
[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
},
},
},
[LID_GYRO] = {
.name = "Lid Gyro",
.active_mask = SENSOR_ACTIVE_S0,
.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_GYRO,
.addr = BMI160_ADDR0,
.default_range = 1000, /* dps */
.rot_standard_ref = NULL, /* Identity Matrix. */
.config = {
/* AP: by default shutdown all sensors */
[SENSOR_CONFIG_AP] = {
.odr = 0,
.ec_rate = 0,
},
/* EC does not need in S0 */
[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,
},
},
},
[LID_MAG] = {
.name = "Lid Mag",
.active_mask = SENSOR_ACTIVE_S0,
.chip = MOTIONSENSE_CHIP_BMI160,
.type = MOTIONSENSE_TYPE_MAG,
.location = MOTIONSENSE_LOC_LID,
.drv = &bmi160_drv,
.mutex = &g_lid_mutex,
.drv_data = &g_bmi160_data,
.port = I2C_PORT_ACCEL,
.addr = BMI160_ADDR0,
.default_range = 1 << 11, /* 16LSB / uT, fixed */
.rot_standard_ref = NULL, /* Identity Matrix. */
.config = {
/* AP: by default shutdown all sensors */
[SENSOR_CONFIG_AP] = {
.odr = 0,
.ec_rate = 0,
},
/* EC does not need in S0 */
[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,
},
},
},
[BASE_ACCEL] = {
.name = "Base Accel",
.active_mask = SENSOR_ACTIVE_S0,
.chip = MOTIONSENSE_CHIP_KXCJ9,
.type = MOTIONSENSE_TYPE_ACCEL,
.location = MOTIONSENSE_LOC_BASE,
.drv = &kionix_accel_drv,
.mutex = &g_base_mutex,
.drv_data = &g_kx022_data,
.port = I2C_PORT_ACCEL,
.addr = KXCJ9_ADDR1,
.rot_standard_ref = &base_standard_ref, /* Identity matrix. */
.default_range = 2, /* g, enough for laptop. */
.config = {
/* AP: by default use EC settings */
[SENSOR_CONFIG_AP] = {
.odr = 10000 | ROUND_UP_FLAG,
.ec_rate = 100 * MSEC,
},
/* EC use accel for angle detection */
[SENSOR_CONFIG_EC_S0] = {
.odr = 10000 | ROUND_UP_FLAG,
.ec_rate = 100 * MSEC,
},
/* unused */
[SENSOR_CONFIG_EC_S3] = {
.odr = 0,
.ec_rate = 0,
},
[SENSOR_CONFIG_EC_S5] = {
.odr = 0,
.ec_rate = 0,
},
},
},
};
const unsigned int motion_sensor_count = ARRAY_SIZE(motion_sensors);
void board_hibernate(void)
{
CPRINTS("Enter Pseudo G3");
/*
* Clean up the UART buffer and prevent any unwanted garbage characters
* before power off and also ensure above debug message is printed.
*/
cflush();
/* FIXME(dhendrix): What to do here? EC is always on so we need to
* turn off whatever can be turned off. */
}
enum reef_board_version {
BOARD_VERSION_UNKNOWN = -1,
BOARD_VERSION_1,
BOARD_VERSION_2,
BOARD_VERSION_3,
BOARD_VERSION_4,
BOARD_VERSION_5,
BOARD_VERSION_6,
BOARD_VERSION_7,
BOARD_VERSION_8,
BOARD_VERSION_COUNT,
};
struct {
enum reef_board_version version;
int thresh_mv;
} const reef_board_versions[] = {
{ BOARD_VERSION_1, 330 }, /* 5.11 Kohm */
{ BOARD_VERSION_2, 670 }, /* 11.8 Kohm */
{ BOARD_VERSION_3, 1010 }, /* 20.5 Kohm */
{ BOARD_VERSION_4, 1390 }, /* 32.4 Kohm */
{ BOARD_VERSION_5, 1690 }, /* 48.7 Kohm */
{ BOARD_VERSION_6, 2020 }, /* 73.2 Kohm */
{ BOARD_VERSION_7, 2350 }, /* 115 Kohm */
{ BOARD_VERSION_8, 2800 }, /* 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;
}
}
return version;
}
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